| /* vi:set ts=8 sts=4 sw=4: |
| * |
| * VIM - Vi IMproved by Bram Moolenaar |
| * |
| * Do ":help uganda" in Vim to read copying and usage conditions. |
| * Do ":help credits" in Vim to see a list of people who contributed. |
| * See README.txt for an overview of the Vim source code. |
| */ |
| |
| /* |
| * spell.c: code for spell checking |
| * |
| * See spellfile.c for the Vim spell file format. |
| * |
| * The spell checking mechanism uses a tree (aka trie). Each node in the tree |
| * has a list of bytes that can appear (siblings). For each byte there is a |
| * pointer to the node with the byte that follows in the word (child). |
| * |
| * A NUL byte is used where the word may end. The bytes are sorted, so that |
| * binary searching can be used and the NUL bytes are at the start. The |
| * number of possible bytes is stored before the list of bytes. |
| * |
| * The tree uses two arrays: "byts" stores the characters, "idxs" stores |
| * either the next index or flags. The tree starts at index 0. For example, |
| * to lookup "vi" this sequence is followed: |
| * i = 0 |
| * len = byts[i] |
| * n = where "v" appears in byts[i + 1] to byts[i + len] |
| * i = idxs[n] |
| * len = byts[i] |
| * n = where "i" appears in byts[i + 1] to byts[i + len] |
| * i = idxs[n] |
| * len = byts[i] |
| * find that byts[i + 1] is 0, idxs[i + 1] has flags for "vi". |
| * |
| * There are two word trees: one with case-folded words and one with words in |
| * original case. The second one is only used for keep-case words and is |
| * usually small. |
| * |
| * There is one additional tree for when not all prefixes are applied when |
| * generating the .spl file. This tree stores all the possible prefixes, as |
| * if they were words. At each word (prefix) end the prefix nr is stored, the |
| * following word must support this prefix nr. And the condition nr is |
| * stored, used to lookup the condition that the word must match with. |
| * |
| * Thanks to Olaf Seibert for providing an example implementation of this tree |
| * and the compression mechanism. |
| * LZ trie ideas: |
| * http://www.irb.hr/hr/home/ristov/papers/RistovLZtrieRevision1.pdf |
| * More papers: http://www-igm.univ-mlv.fr/~laporte/publi_en.html |
| * |
| * Matching involves checking the caps type: Onecap ALLCAP KeepCap. |
| * |
| * Why doesn't Vim use aspell/ispell/myspell/etc.? |
| * See ":help develop-spell". |
| */ |
| |
| /* |
| * Use this to adjust the score after finding suggestions, based on the |
| * suggested word sounding like the bad word. This is much faster than doing |
| * it for every possible suggestion. |
| * Disadvantage: When "the" is typed as "hte" it sounds quite different ("@" |
| * vs "ht") and goes down in the list. |
| * Used when 'spellsuggest' is set to "best". |
| */ |
| #define RESCORE(word_score, sound_score) ((3 * word_score + sound_score) / 4) |
| |
| /* |
| * Do the opposite: based on a maximum end score and a known sound score, |
| * compute the maximum word score that can be used. |
| */ |
| #define MAXSCORE(word_score, sound_score) ((4 * word_score - sound_score) / 3) |
| |
| #define IN_SPELL_C |
| #include "vim.h" |
| |
| #if defined(FEAT_SPELL) || defined(PROTO) |
| |
| #ifndef UNIX /* it's in os_unix.h for Unix */ |
| # include <time.h> /* for time_t */ |
| #endif |
| |
| /* only used for su_badflags */ |
| #define WF_MIXCAP 0x20 /* mix of upper and lower case: macaRONI */ |
| |
| #define WF_CAPMASK (WF_ONECAP | WF_ALLCAP | WF_KEEPCAP | WF_FIXCAP) |
| |
| #define REGION_ALL 0xff /* word valid in all regions */ |
| |
| #define VIMSUGMAGIC "VIMsug" /* string at start of Vim .sug file */ |
| #define VIMSUGMAGICL 6 |
| #define VIMSUGVERSION 1 |
| |
| /* Result values. Lower number is accepted over higher one. */ |
| #define SP_BANNED -1 |
| #define SP_OK 0 |
| #define SP_RARE 1 |
| #define SP_LOCAL 2 |
| #define SP_BAD 3 |
| |
| typedef struct wordcount_S |
| { |
| short_u wc_count; /* nr of times word was seen */ |
| char_u wc_word[1]; /* word, actually longer */ |
| } wordcount_T; |
| |
| #define WC_KEY_OFF offsetof(wordcount_T, wc_word) |
| #define HI2WC(hi) ((wordcount_T *)((hi)->hi_key - WC_KEY_OFF)) |
| #define MAXWORDCOUNT 0xffff |
| |
| /* |
| * Information used when looking for suggestions. |
| */ |
| typedef struct suginfo_S |
| { |
| garray_T su_ga; /* suggestions, contains "suggest_T" */ |
| int su_maxcount; /* max. number of suggestions displayed */ |
| int su_maxscore; /* maximum score for adding to su_ga */ |
| int su_sfmaxscore; /* idem, for when doing soundfold words */ |
| garray_T su_sga; /* like su_ga, sound-folded scoring */ |
| char_u *su_badptr; /* start of bad word in line */ |
| int su_badlen; /* length of detected bad word in line */ |
| int su_badflags; /* caps flags for bad word */ |
| char_u su_badword[MAXWLEN]; /* bad word truncated at su_badlen */ |
| char_u su_fbadword[MAXWLEN]; /* su_badword case-folded */ |
| char_u su_sal_badword[MAXWLEN]; /* su_badword soundfolded */ |
| hashtab_T su_banned; /* table with banned words */ |
| slang_T *su_sallang; /* default language for sound folding */ |
| } suginfo_T; |
| |
| /* One word suggestion. Used in "si_ga". */ |
| typedef struct suggest_S |
| { |
| char_u *st_word; /* suggested word, allocated string */ |
| int st_wordlen; /* STRLEN(st_word) */ |
| int st_orglen; /* length of replaced text */ |
| int st_score; /* lower is better */ |
| int st_altscore; /* used when st_score compares equal */ |
| int st_salscore; /* st_score is for soundalike */ |
| int st_had_bonus; /* bonus already included in score */ |
| slang_T *st_slang; /* language used for sound folding */ |
| } suggest_T; |
| |
| #define SUG(ga, i) (((suggest_T *)(ga).ga_data)[i]) |
| |
| /* TRUE if a word appears in the list of banned words. */ |
| #define WAS_BANNED(su, word) (!HASHITEM_EMPTY(hash_find(&su->su_banned, word))) |
| |
| /* Number of suggestions kept when cleaning up. We need to keep more than |
| * what is displayed, because when rescore_suggestions() is called the score |
| * may change and wrong suggestions may be removed later. */ |
| #define SUG_CLEAN_COUNT(su) ((su)->su_maxcount < 130 ? 150 : (su)->su_maxcount + 20) |
| |
| /* Threshold for sorting and cleaning up suggestions. Don't want to keep lots |
| * of suggestions that are not going to be displayed. */ |
| #define SUG_MAX_COUNT(su) (SUG_CLEAN_COUNT(su) + 50) |
| |
| /* score for various changes */ |
| #define SCORE_SPLIT 149 /* split bad word */ |
| #define SCORE_SPLIT_NO 249 /* split bad word with NOSPLITSUGS */ |
| #define SCORE_ICASE 52 /* slightly different case */ |
| #define SCORE_REGION 200 /* word is for different region */ |
| #define SCORE_RARE 180 /* rare word */ |
| #define SCORE_SWAP 75 /* swap two characters */ |
| #define SCORE_SWAP3 110 /* swap two characters in three */ |
| #define SCORE_REP 65 /* REP replacement */ |
| #define SCORE_SUBST 93 /* substitute a character */ |
| #define SCORE_SIMILAR 33 /* substitute a similar character */ |
| #define SCORE_SUBCOMP 33 /* substitute a composing character */ |
| #define SCORE_DEL 94 /* delete a character */ |
| #define SCORE_DELDUP 66 /* delete a duplicated character */ |
| #define SCORE_DELCOMP 28 /* delete a composing character */ |
| #define SCORE_INS 96 /* insert a character */ |
| #define SCORE_INSDUP 67 /* insert a duplicate character */ |
| #define SCORE_INSCOMP 30 /* insert a composing character */ |
| #define SCORE_NONWORD 103 /* change non-word to word char */ |
| |
| #define SCORE_FILE 30 /* suggestion from a file */ |
| #define SCORE_MAXINIT 350 /* Initial maximum score: higher == slower. |
| * 350 allows for about three changes. */ |
| |
| #define SCORE_COMMON1 30 /* subtracted for words seen before */ |
| #define SCORE_COMMON2 40 /* subtracted for words often seen */ |
| #define SCORE_COMMON3 50 /* subtracted for words very often seen */ |
| #define SCORE_THRES2 10 /* word count threshold for COMMON2 */ |
| #define SCORE_THRES3 100 /* word count threshold for COMMON3 */ |
| |
| /* When trying changed soundfold words it becomes slow when trying more than |
| * two changes. With less then two changes it's slightly faster but we miss a |
| * few good suggestions. In rare cases we need to try three of four changes. |
| */ |
| #define SCORE_SFMAX1 200 /* maximum score for first try */ |
| #define SCORE_SFMAX2 300 /* maximum score for second try */ |
| #define SCORE_SFMAX3 400 /* maximum score for third try */ |
| |
| #define SCORE_BIG SCORE_INS * 3 /* big difference */ |
| #define SCORE_MAXMAX 999999 /* accept any score */ |
| #define SCORE_LIMITMAX 350 /* for spell_edit_score_limit() */ |
| |
| /* for spell_edit_score_limit() we need to know the minimum value of |
| * SCORE_ICASE, SCORE_SWAP, SCORE_DEL, SCORE_SIMILAR and SCORE_INS */ |
| #define SCORE_EDIT_MIN SCORE_SIMILAR |
| |
| /* |
| * Structure to store info for word matching. |
| */ |
| typedef struct matchinf_S |
| { |
| langp_T *mi_lp; /* info for language and region */ |
| |
| /* pointers to original text to be checked */ |
| char_u *mi_word; /* start of word being checked */ |
| char_u *mi_end; /* end of matching word so far */ |
| char_u *mi_fend; /* next char to be added to mi_fword */ |
| char_u *mi_cend; /* char after what was used for |
| mi_capflags */ |
| |
| /* case-folded text */ |
| char_u mi_fword[MAXWLEN + 1]; /* mi_word case-folded */ |
| int mi_fwordlen; /* nr of valid bytes in mi_fword */ |
| |
| /* for when checking word after a prefix */ |
| int mi_prefarridx; /* index in sl_pidxs with list of |
| affixID/condition */ |
| int mi_prefcnt; /* number of entries at mi_prefarridx */ |
| int mi_prefixlen; /* byte length of prefix */ |
| #ifdef FEAT_MBYTE |
| int mi_cprefixlen; /* byte length of prefix in original |
| case */ |
| #else |
| # define mi_cprefixlen mi_prefixlen /* it's the same value */ |
| #endif |
| |
| /* for when checking a compound word */ |
| int mi_compoff; /* start of following word offset */ |
| char_u mi_compflags[MAXWLEN]; /* flags for compound words used */ |
| int mi_complen; /* nr of compound words used */ |
| int mi_compextra; /* nr of COMPOUNDROOT words */ |
| |
| /* others */ |
| int mi_result; /* result so far: SP_BAD, SP_OK, etc. */ |
| int mi_capflags; /* WF_ONECAP WF_ALLCAP WF_KEEPCAP */ |
| win_T *mi_win; /* buffer being checked */ |
| |
| /* for NOBREAK */ |
| int mi_result2; /* "mi_resul" without following word */ |
| char_u *mi_end2; /* "mi_end" without following word */ |
| } matchinf_T; |
| |
| |
| static int spell_iswordp(char_u *p, win_T *wp); |
| #ifdef FEAT_MBYTE |
| static int spell_mb_isword_class(int cl, win_T *wp); |
| static int spell_iswordp_w(int *p, win_T *wp); |
| #endif |
| |
| /* |
| * For finding suggestions: At each node in the tree these states are tried: |
| */ |
| typedef enum |
| { |
| STATE_START = 0, /* At start of node check for NUL bytes (goodword |
| * ends); if badword ends there is a match, otherwise |
| * try splitting word. */ |
| STATE_NOPREFIX, /* try without prefix */ |
| STATE_SPLITUNDO, /* Undo splitting. */ |
| STATE_ENDNUL, /* Past NUL bytes at start of the node. */ |
| STATE_PLAIN, /* Use each byte of the node. */ |
| STATE_DEL, /* Delete a byte from the bad word. */ |
| STATE_INS_PREP, /* Prepare for inserting bytes. */ |
| STATE_INS, /* Insert a byte in the bad word. */ |
| STATE_SWAP, /* Swap two bytes. */ |
| STATE_UNSWAP, /* Undo swap two characters. */ |
| STATE_SWAP3, /* Swap two characters over three. */ |
| STATE_UNSWAP3, /* Undo Swap two characters over three. */ |
| STATE_UNROT3L, /* Undo rotate three characters left */ |
| STATE_UNROT3R, /* Undo rotate three characters right */ |
| STATE_REP_INI, /* Prepare for using REP items. */ |
| STATE_REP, /* Use matching REP items from the .aff file. */ |
| STATE_REP_UNDO, /* Undo a REP item replacement. */ |
| STATE_FINAL /* End of this node. */ |
| } state_T; |
| |
| /* |
| * Struct to keep the state at each level in suggest_try_change(). |
| */ |
| typedef struct trystate_S |
| { |
| state_T ts_state; /* state at this level, STATE_ */ |
| int ts_score; /* score */ |
| idx_T ts_arridx; /* index in tree array, start of node */ |
| short ts_curi; /* index in list of child nodes */ |
| char_u ts_fidx; /* index in fword[], case-folded bad word */ |
| char_u ts_fidxtry; /* ts_fidx at which bytes may be changed */ |
| char_u ts_twordlen; /* valid length of tword[] */ |
| char_u ts_prefixdepth; /* stack depth for end of prefix or |
| * PFD_PREFIXTREE or PFD_NOPREFIX */ |
| char_u ts_flags; /* TSF_ flags */ |
| #ifdef FEAT_MBYTE |
| char_u ts_tcharlen; /* number of bytes in tword character */ |
| char_u ts_tcharidx; /* current byte index in tword character */ |
| char_u ts_isdiff; /* DIFF_ values */ |
| char_u ts_fcharstart; /* index in fword where badword char started */ |
| #endif |
| char_u ts_prewordlen; /* length of word in "preword[]" */ |
| char_u ts_splitoff; /* index in "tword" after last split */ |
| char_u ts_splitfidx; /* "ts_fidx" at word split */ |
| char_u ts_complen; /* nr of compound words used */ |
| char_u ts_compsplit; /* index for "compflags" where word was spit */ |
| char_u ts_save_badflags; /* su_badflags saved here */ |
| char_u ts_delidx; /* index in fword for char that was deleted, |
| valid when "ts_flags" has TSF_DIDDEL */ |
| } trystate_T; |
| |
| /* values for ts_isdiff */ |
| #define DIFF_NONE 0 /* no different byte (yet) */ |
| #define DIFF_YES 1 /* different byte found */ |
| #define DIFF_INSERT 2 /* inserting character */ |
| |
| /* values for ts_flags */ |
| #define TSF_PREFIXOK 1 /* already checked that prefix is OK */ |
| #define TSF_DIDSPLIT 2 /* tried split at this point */ |
| #define TSF_DIDDEL 4 /* did a delete, "ts_delidx" has index */ |
| |
| /* special values ts_prefixdepth */ |
| #define PFD_NOPREFIX 0xff /* not using prefixes */ |
| #define PFD_PREFIXTREE 0xfe /* walking through the prefix tree */ |
| #define PFD_NOTSPECIAL 0xfd /* highest value that's not special */ |
| |
| /* mode values for find_word */ |
| #define FIND_FOLDWORD 0 /* find word case-folded */ |
| #define FIND_KEEPWORD 1 /* find keep-case word */ |
| #define FIND_PREFIX 2 /* find word after prefix */ |
| #define FIND_COMPOUND 3 /* find case-folded compound word */ |
| #define FIND_KEEPCOMPOUND 4 /* find keep-case compound word */ |
| |
| static void find_word(matchinf_T *mip, int mode); |
| static int match_checkcompoundpattern(char_u *ptr, int wlen, garray_T *gap); |
| static int can_compound(slang_T *slang, char_u *word, char_u *flags); |
| static int can_be_compound(trystate_T *sp, slang_T *slang, char_u *compflags, int flag); |
| static int match_compoundrule(slang_T *slang, char_u *compflags); |
| static int valid_word_prefix(int totprefcnt, int arridx, int flags, char_u *word, slang_T *slang, int cond_req); |
| static void find_prefix(matchinf_T *mip, int mode); |
| static int fold_more(matchinf_T *mip); |
| static int spell_valid_case(int wordflags, int treeflags); |
| static int no_spell_checking(win_T *wp); |
| static void spell_load_lang(char_u *lang); |
| static void int_wordlist_spl(char_u *fname); |
| static void spell_load_cb(char_u *fname, void *cookie); |
| static int score_wordcount_adj(slang_T *slang, int score, char_u *word, int split); |
| static int count_syllables(slang_T *slang, char_u *word); |
| static void clear_midword(win_T *buf); |
| static void use_midword(slang_T *lp, win_T *buf); |
| static int find_region(char_u *rp, char_u *region); |
| static int badword_captype(char_u *word, char_u *end); |
| static int check_need_cap(linenr_T lnum, colnr_T col); |
| static void spell_find_suggest(char_u *badptr, int badlen, suginfo_T *su, int maxcount, int banbadword, int need_cap, int interactive); |
| #ifdef FEAT_EVAL |
| static void spell_suggest_expr(suginfo_T *su, char_u *expr); |
| #endif |
| static void spell_suggest_file(suginfo_T *su, char_u *fname); |
| static void spell_suggest_intern(suginfo_T *su, int interactive); |
| static void spell_find_cleanup(suginfo_T *su); |
| static void allcap_copy(char_u *word, char_u *wcopy); |
| static void suggest_try_special(suginfo_T *su); |
| static void suggest_try_change(suginfo_T *su); |
| static void suggest_trie_walk(suginfo_T *su, langp_T *lp, char_u *fword, int soundfold); |
| static void go_deeper(trystate_T *stack, int depth, int score_add); |
| #ifdef FEAT_MBYTE |
| static int nofold_len(char_u *fword, int flen, char_u *word); |
| #endif |
| static void find_keepcap_word(slang_T *slang, char_u *fword, char_u *kword); |
| static void score_comp_sal(suginfo_T *su); |
| static void score_combine(suginfo_T *su); |
| static int stp_sal_score(suggest_T *stp, suginfo_T *su, slang_T *slang, char_u *badsound); |
| static void suggest_try_soundalike_prep(void); |
| static void suggest_try_soundalike(suginfo_T *su); |
| static void suggest_try_soundalike_finish(void); |
| static void add_sound_suggest(suginfo_T *su, char_u *goodword, int score, langp_T *lp); |
| static int soundfold_find(slang_T *slang, char_u *word); |
| static void make_case_word(char_u *fword, char_u *cword, int flags); |
| static int similar_chars(slang_T *slang, int c1, int c2); |
| static void add_suggestion(suginfo_T *su, garray_T *gap, char_u *goodword, int badlen, int score, int altscore, int had_bonus, slang_T *slang, int maxsf); |
| static void check_suggestions(suginfo_T *su, garray_T *gap); |
| static void add_banned(suginfo_T *su, char_u *word); |
| static void rescore_suggestions(suginfo_T *su); |
| static void rescore_one(suginfo_T *su, suggest_T *stp); |
| static int cleanup_suggestions(garray_T *gap, int maxscore, int keep); |
| static void spell_soundfold_sofo(slang_T *slang, char_u *inword, char_u *res); |
| static void spell_soundfold_sal(slang_T *slang, char_u *inword, char_u *res); |
| #ifdef FEAT_MBYTE |
| static void spell_soundfold_wsal(slang_T *slang, char_u *inword, char_u *res); |
| #endif |
| static int soundalike_score(char_u *goodsound, char_u *badsound); |
| static int spell_edit_score(slang_T *slang, char_u *badword, char_u *goodword); |
| static int spell_edit_score_limit(slang_T *slang, char_u *badword, char_u *goodword, int limit); |
| #ifdef FEAT_MBYTE |
| static int spell_edit_score_limit_w(slang_T *slang, char_u *badword, char_u *goodword, int limit); |
| #endif |
| static void dump_word(slang_T *slang, char_u *word, char_u *pat, int *dir, int round, int flags, linenr_T lnum); |
| static linenr_T dump_prefixes(slang_T *slang, char_u *word, char_u *pat, int *dir, int round, int flags, linenr_T startlnum); |
| |
| |
| /* Remember what "z?" replaced. */ |
| static char_u *repl_from = NULL; |
| static char_u *repl_to = NULL; |
| |
| /* |
| * Main spell-checking function. |
| * "ptr" points to a character that could be the start of a word. |
| * "*attrp" is set to the highlight index for a badly spelled word. For a |
| * non-word or when it's OK it remains unchanged. |
| * This must only be called when 'spelllang' is not empty. |
| * |
| * "capcol" is used to check for a Capitalised word after the end of a |
| * sentence. If it's zero then perform the check. Return the column where to |
| * check next, or -1 when no sentence end was found. If it's NULL then don't |
| * worry. |
| * |
| * Returns the length of the word in bytes, also when it's OK, so that the |
| * caller can skip over the word. |
| */ |
| int |
| spell_check( |
| win_T *wp, /* current window */ |
| char_u *ptr, |
| hlf_T *attrp, |
| int *capcol, /* column to check for Capital */ |
| int docount) /* count good words */ |
| { |
| matchinf_T mi; /* Most things are put in "mi" so that it can |
| be passed to functions quickly. */ |
| int nrlen = 0; /* found a number first */ |
| int c; |
| int wrongcaplen = 0; |
| int lpi; |
| int count_word = docount; |
| |
| /* A word never starts at a space or a control character. Return quickly |
| * then, skipping over the character. */ |
| if (*ptr <= ' ') |
| return 1; |
| |
| /* Return here when loading language files failed. */ |
| if (wp->w_s->b_langp.ga_len == 0) |
| return 1; |
| |
| vim_memset(&mi, 0, sizeof(matchinf_T)); |
| |
| /* A number is always OK. Also skip hexadecimal numbers 0xFF99 and |
| * 0X99FF. But always do check spelling to find "3GPP" and "11 |
| * julifeest". */ |
| if (*ptr >= '0' && *ptr <= '9') |
| { |
| if (*ptr == '0' && (ptr[1] == 'b' || ptr[1] == 'B')) |
| mi.mi_end = skipbin(ptr + 2); |
| else if (*ptr == '0' && (ptr[1] == 'x' || ptr[1] == 'X')) |
| mi.mi_end = skiphex(ptr + 2); |
| else |
| mi.mi_end = skipdigits(ptr); |
| nrlen = (int)(mi.mi_end - ptr); |
| } |
| |
| /* Find the normal end of the word (until the next non-word character). */ |
| mi.mi_word = ptr; |
| mi.mi_fend = ptr; |
| if (spell_iswordp(mi.mi_fend, wp)) |
| { |
| do |
| { |
| mb_ptr_adv(mi.mi_fend); |
| } while (*mi.mi_fend != NUL && spell_iswordp(mi.mi_fend, wp)); |
| |
| if (capcol != NULL && *capcol == 0 && wp->w_s->b_cap_prog != NULL) |
| { |
| /* Check word starting with capital letter. */ |
| c = PTR2CHAR(ptr); |
| if (!SPELL_ISUPPER(c)) |
| wrongcaplen = (int)(mi.mi_fend - ptr); |
| } |
| } |
| if (capcol != NULL) |
| *capcol = -1; |
| |
| /* We always use the characters up to the next non-word character, |
| * also for bad words. */ |
| mi.mi_end = mi.mi_fend; |
| |
| /* Check caps type later. */ |
| mi.mi_capflags = 0; |
| mi.mi_cend = NULL; |
| mi.mi_win = wp; |
| |
| /* case-fold the word with one non-word character, so that we can check |
| * for the word end. */ |
| if (*mi.mi_fend != NUL) |
| mb_ptr_adv(mi.mi_fend); |
| |
| (void)spell_casefold(ptr, (int)(mi.mi_fend - ptr), mi.mi_fword, |
| MAXWLEN + 1); |
| mi.mi_fwordlen = (int)STRLEN(mi.mi_fword); |
| |
| /* The word is bad unless we recognize it. */ |
| mi.mi_result = SP_BAD; |
| mi.mi_result2 = SP_BAD; |
| |
| /* |
| * Loop over the languages specified in 'spelllang'. |
| * We check them all, because a word may be matched longer in another |
| * language. |
| */ |
| for (lpi = 0; lpi < wp->w_s->b_langp.ga_len; ++lpi) |
| { |
| mi.mi_lp = LANGP_ENTRY(wp->w_s->b_langp, lpi); |
| |
| /* If reloading fails the language is still in the list but everything |
| * has been cleared. */ |
| if (mi.mi_lp->lp_slang->sl_fidxs == NULL) |
| continue; |
| |
| /* Check for a matching word in case-folded words. */ |
| find_word(&mi, FIND_FOLDWORD); |
| |
| /* Check for a matching word in keep-case words. */ |
| find_word(&mi, FIND_KEEPWORD); |
| |
| /* Check for matching prefixes. */ |
| find_prefix(&mi, FIND_FOLDWORD); |
| |
| /* For a NOBREAK language, may want to use a word without a following |
| * word as a backup. */ |
| if (mi.mi_lp->lp_slang->sl_nobreak && mi.mi_result == SP_BAD |
| && mi.mi_result2 != SP_BAD) |
| { |
| mi.mi_result = mi.mi_result2; |
| mi.mi_end = mi.mi_end2; |
| } |
| |
| /* Count the word in the first language where it's found to be OK. */ |
| if (count_word && mi.mi_result == SP_OK) |
| { |
| count_common_word(mi.mi_lp->lp_slang, ptr, |
| (int)(mi.mi_end - ptr), 1); |
| count_word = FALSE; |
| } |
| } |
| |
| if (mi.mi_result != SP_OK) |
| { |
| /* If we found a number skip over it. Allows for "42nd". Do flag |
| * rare and local words, e.g., "3GPP". */ |
| if (nrlen > 0) |
| { |
| if (mi.mi_result == SP_BAD || mi.mi_result == SP_BANNED) |
| return nrlen; |
| } |
| |
| /* When we are at a non-word character there is no error, just |
| * skip over the character (try looking for a word after it). */ |
| else if (!spell_iswordp_nmw(ptr, wp)) |
| { |
| if (capcol != NULL && wp->w_s->b_cap_prog != NULL) |
| { |
| regmatch_T regmatch; |
| int r; |
| |
| /* Check for end of sentence. */ |
| regmatch.regprog = wp->w_s->b_cap_prog; |
| regmatch.rm_ic = FALSE; |
| r = vim_regexec(®match, ptr, 0); |
| wp->w_s->b_cap_prog = regmatch.regprog; |
| if (r) |
| *capcol = (int)(regmatch.endp[0] - ptr); |
| } |
| |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| return (*mb_ptr2len)(ptr); |
| #endif |
| return 1; |
| } |
| else if (mi.mi_end == ptr) |
| /* Always include at least one character. Required for when there |
| * is a mixup in "midword". */ |
| mb_ptr_adv(mi.mi_end); |
| else if (mi.mi_result == SP_BAD |
| && LANGP_ENTRY(wp->w_s->b_langp, 0)->lp_slang->sl_nobreak) |
| { |
| char_u *p, *fp; |
| int save_result = mi.mi_result; |
| |
| /* First language in 'spelllang' is NOBREAK. Find first position |
| * at which any word would be valid. */ |
| mi.mi_lp = LANGP_ENTRY(wp->w_s->b_langp, 0); |
| if (mi.mi_lp->lp_slang->sl_fidxs != NULL) |
| { |
| p = mi.mi_word; |
| fp = mi.mi_fword; |
| for (;;) |
| { |
| mb_ptr_adv(p); |
| mb_ptr_adv(fp); |
| if (p >= mi.mi_end) |
| break; |
| mi.mi_compoff = (int)(fp - mi.mi_fword); |
| find_word(&mi, FIND_COMPOUND); |
| if (mi.mi_result != SP_BAD) |
| { |
| mi.mi_end = p; |
| break; |
| } |
| } |
| mi.mi_result = save_result; |
| } |
| } |
| |
| if (mi.mi_result == SP_BAD || mi.mi_result == SP_BANNED) |
| *attrp = HLF_SPB; |
| else if (mi.mi_result == SP_RARE) |
| *attrp = HLF_SPR; |
| else |
| *attrp = HLF_SPL; |
| } |
| |
| if (wrongcaplen > 0 && (mi.mi_result == SP_OK || mi.mi_result == SP_RARE)) |
| { |
| /* Report SpellCap only when the word isn't badly spelled. */ |
| *attrp = HLF_SPC; |
| return wrongcaplen; |
| } |
| |
| return (int)(mi.mi_end - ptr); |
| } |
| |
| /* |
| * Check if the word at "mip->mi_word" is in the tree. |
| * When "mode" is FIND_FOLDWORD check in fold-case word tree. |
| * When "mode" is FIND_KEEPWORD check in keep-case word tree. |
| * When "mode" is FIND_PREFIX check for word after prefix in fold-case word |
| * tree. |
| * |
| * For a match mip->mi_result is updated. |
| */ |
| static void |
| find_word(matchinf_T *mip, int mode) |
| { |
| idx_T arridx = 0; |
| int endlen[MAXWLEN]; /* length at possible word endings */ |
| idx_T endidx[MAXWLEN]; /* possible word endings */ |
| int endidxcnt = 0; |
| int len; |
| int wlen = 0; |
| int flen; |
| int c; |
| char_u *ptr; |
| idx_T lo, hi, m; |
| #ifdef FEAT_MBYTE |
| char_u *s; |
| #endif |
| char_u *p; |
| int res = SP_BAD; |
| slang_T *slang = mip->mi_lp->lp_slang; |
| unsigned flags; |
| char_u *byts; |
| idx_T *idxs; |
| int word_ends; |
| int prefix_found; |
| int nobreak_result; |
| |
| if (mode == FIND_KEEPWORD || mode == FIND_KEEPCOMPOUND) |
| { |
| /* Check for word with matching case in keep-case tree. */ |
| ptr = mip->mi_word; |
| flen = 9999; /* no case folding, always enough bytes */ |
| byts = slang->sl_kbyts; |
| idxs = slang->sl_kidxs; |
| |
| if (mode == FIND_KEEPCOMPOUND) |
| /* Skip over the previously found word(s). */ |
| wlen += mip->mi_compoff; |
| } |
| else |
| { |
| /* Check for case-folded in case-folded tree. */ |
| ptr = mip->mi_fword; |
| flen = mip->mi_fwordlen; /* available case-folded bytes */ |
| byts = slang->sl_fbyts; |
| idxs = slang->sl_fidxs; |
| |
| if (mode == FIND_PREFIX) |
| { |
| /* Skip over the prefix. */ |
| wlen = mip->mi_prefixlen; |
| flen -= mip->mi_prefixlen; |
| } |
| else if (mode == FIND_COMPOUND) |
| { |
| /* Skip over the previously found word(s). */ |
| wlen = mip->mi_compoff; |
| flen -= mip->mi_compoff; |
| } |
| |
| } |
| |
| if (byts == NULL) |
| return; /* array is empty */ |
| |
| /* |
| * Repeat advancing in the tree until: |
| * - there is a byte that doesn't match, |
| * - we reach the end of the tree, |
| * - or we reach the end of the line. |
| */ |
| for (;;) |
| { |
| if (flen <= 0 && *mip->mi_fend != NUL) |
| flen = fold_more(mip); |
| |
| len = byts[arridx++]; |
| |
| /* If the first possible byte is a zero the word could end here. |
| * Remember this index, we first check for the longest word. */ |
| if (byts[arridx] == 0) |
| { |
| if (endidxcnt == MAXWLEN) |
| { |
| /* Must be a corrupted spell file. */ |
| EMSG(_(e_format)); |
| return; |
| } |
| endlen[endidxcnt] = wlen; |
| endidx[endidxcnt++] = arridx++; |
| --len; |
| |
| /* Skip over the zeros, there can be several flag/region |
| * combinations. */ |
| while (len > 0 && byts[arridx] == 0) |
| { |
| ++arridx; |
| --len; |
| } |
| if (len == 0) |
| break; /* no children, word must end here */ |
| } |
| |
| /* Stop looking at end of the line. */ |
| if (ptr[wlen] == NUL) |
| break; |
| |
| /* Perform a binary search in the list of accepted bytes. */ |
| c = ptr[wlen]; |
| if (c == TAB) /* <Tab> is handled like <Space> */ |
| c = ' '; |
| lo = arridx; |
| hi = arridx + len - 1; |
| while (lo < hi) |
| { |
| m = (lo + hi) / 2; |
| if (byts[m] > c) |
| hi = m - 1; |
| else if (byts[m] < c) |
| lo = m + 1; |
| else |
| { |
| lo = hi = m; |
| break; |
| } |
| } |
| |
| /* Stop if there is no matching byte. */ |
| if (hi < lo || byts[lo] != c) |
| break; |
| |
| /* Continue at the child (if there is one). */ |
| arridx = idxs[lo]; |
| ++wlen; |
| --flen; |
| |
| /* One space in the good word may stand for several spaces in the |
| * checked word. */ |
| if (c == ' ') |
| { |
| for (;;) |
| { |
| if (flen <= 0 && *mip->mi_fend != NUL) |
| flen = fold_more(mip); |
| if (ptr[wlen] != ' ' && ptr[wlen] != TAB) |
| break; |
| ++wlen; |
| --flen; |
| } |
| } |
| } |
| |
| /* |
| * Verify that one of the possible endings is valid. Try the longest |
| * first. |
| */ |
| while (endidxcnt > 0) |
| { |
| --endidxcnt; |
| arridx = endidx[endidxcnt]; |
| wlen = endlen[endidxcnt]; |
| |
| #ifdef FEAT_MBYTE |
| if ((*mb_head_off)(ptr, ptr + wlen) > 0) |
| continue; /* not at first byte of character */ |
| #endif |
| if (spell_iswordp(ptr + wlen, mip->mi_win)) |
| { |
| if (slang->sl_compprog == NULL && !slang->sl_nobreak) |
| continue; /* next char is a word character */ |
| word_ends = FALSE; |
| } |
| else |
| word_ends = TRUE; |
| /* The prefix flag is before compound flags. Once a valid prefix flag |
| * has been found we try compound flags. */ |
| prefix_found = FALSE; |
| |
| #ifdef FEAT_MBYTE |
| if (mode != FIND_KEEPWORD && has_mbyte) |
| { |
| /* Compute byte length in original word, length may change |
| * when folding case. This can be slow, take a shortcut when the |
| * case-folded word is equal to the keep-case word. */ |
| p = mip->mi_word; |
| if (STRNCMP(ptr, p, wlen) != 0) |
| { |
| for (s = ptr; s < ptr + wlen; mb_ptr_adv(s)) |
| mb_ptr_adv(p); |
| wlen = (int)(p - mip->mi_word); |
| } |
| } |
| #endif |
| |
| /* Check flags and region. For FIND_PREFIX check the condition and |
| * prefix ID. |
| * Repeat this if there are more flags/region alternatives until there |
| * is a match. */ |
| res = SP_BAD; |
| for (len = byts[arridx - 1]; len > 0 && byts[arridx] == 0; |
| --len, ++arridx) |
| { |
| flags = idxs[arridx]; |
| |
| /* For the fold-case tree check that the case of the checked word |
| * matches with what the word in the tree requires. |
| * For keep-case tree the case is always right. For prefixes we |
| * don't bother to check. */ |
| if (mode == FIND_FOLDWORD) |
| { |
| if (mip->mi_cend != mip->mi_word + wlen) |
| { |
| /* mi_capflags was set for a different word length, need |
| * to do it again. */ |
| mip->mi_cend = mip->mi_word + wlen; |
| mip->mi_capflags = captype(mip->mi_word, mip->mi_cend); |
| } |
| |
| if (mip->mi_capflags == WF_KEEPCAP |
| || !spell_valid_case(mip->mi_capflags, flags)) |
| continue; |
| } |
| |
| /* When mode is FIND_PREFIX the word must support the prefix: |
| * check the prefix ID and the condition. Do that for the list at |
| * mip->mi_prefarridx that find_prefix() filled. */ |
| else if (mode == FIND_PREFIX && !prefix_found) |
| { |
| c = valid_word_prefix(mip->mi_prefcnt, mip->mi_prefarridx, |
| flags, |
| mip->mi_word + mip->mi_cprefixlen, slang, |
| FALSE); |
| if (c == 0) |
| continue; |
| |
| /* Use the WF_RARE flag for a rare prefix. */ |
| if (c & WF_RAREPFX) |
| flags |= WF_RARE; |
| prefix_found = TRUE; |
| } |
| |
| if (slang->sl_nobreak) |
| { |
| if ((mode == FIND_COMPOUND || mode == FIND_KEEPCOMPOUND) |
| && (flags & WF_BANNED) == 0) |
| { |
| /* NOBREAK: found a valid following word. That's all we |
| * need to know, so return. */ |
| mip->mi_result = SP_OK; |
| break; |
| } |
| } |
| |
| else if ((mode == FIND_COMPOUND || mode == FIND_KEEPCOMPOUND |
| || !word_ends)) |
| { |
| /* If there is no compound flag or the word is shorter than |
| * COMPOUNDMIN reject it quickly. |
| * Makes you wonder why someone puts a compound flag on a word |
| * that's too short... Myspell compatibility requires this |
| * anyway. */ |
| if (((unsigned)flags >> 24) == 0 |
| || wlen - mip->mi_compoff < slang->sl_compminlen) |
| continue; |
| #ifdef FEAT_MBYTE |
| /* For multi-byte chars check character length against |
| * COMPOUNDMIN. */ |
| if (has_mbyte |
| && slang->sl_compminlen > 0 |
| && mb_charlen_len(mip->mi_word + mip->mi_compoff, |
| wlen - mip->mi_compoff) < slang->sl_compminlen) |
| continue; |
| #endif |
| |
| /* Limit the number of compound words to COMPOUNDWORDMAX if no |
| * maximum for syllables is specified. */ |
| if (!word_ends && mip->mi_complen + mip->mi_compextra + 2 |
| > slang->sl_compmax |
| && slang->sl_compsylmax == MAXWLEN) |
| continue; |
| |
| /* Don't allow compounding on a side where an affix was added, |
| * unless COMPOUNDPERMITFLAG was used. */ |
| if (mip->mi_complen > 0 && (flags & WF_NOCOMPBEF)) |
| continue; |
| if (!word_ends && (flags & WF_NOCOMPAFT)) |
| continue; |
| |
| /* Quickly check if compounding is possible with this flag. */ |
| if (!byte_in_str(mip->mi_complen == 0 |
| ? slang->sl_compstartflags |
| : slang->sl_compallflags, |
| ((unsigned)flags >> 24))) |
| continue; |
| |
| /* If there is a match with a CHECKCOMPOUNDPATTERN rule |
| * discard the compound word. */ |
| if (match_checkcompoundpattern(ptr, wlen, &slang->sl_comppat)) |
| continue; |
| |
| if (mode == FIND_COMPOUND) |
| { |
| int capflags; |
| |
| /* Need to check the caps type of the appended compound |
| * word. */ |
| #ifdef FEAT_MBYTE |
| if (has_mbyte && STRNCMP(ptr, mip->mi_word, |
| mip->mi_compoff) != 0) |
| { |
| /* case folding may have changed the length */ |
| p = mip->mi_word; |
| for (s = ptr; s < ptr + mip->mi_compoff; mb_ptr_adv(s)) |
| mb_ptr_adv(p); |
| } |
| else |
| #endif |
| p = mip->mi_word + mip->mi_compoff; |
| capflags = captype(p, mip->mi_word + wlen); |
| if (capflags == WF_KEEPCAP || (capflags == WF_ALLCAP |
| && (flags & WF_FIXCAP) != 0)) |
| continue; |
| |
| if (capflags != WF_ALLCAP) |
| { |
| /* When the character before the word is a word |
| * character we do not accept a Onecap word. We do |
| * accept a no-caps word, even when the dictionary |
| * word specifies ONECAP. */ |
| mb_ptr_back(mip->mi_word, p); |
| if (spell_iswordp_nmw(p, mip->mi_win) |
| ? capflags == WF_ONECAP |
| : (flags & WF_ONECAP) != 0 |
| && capflags != WF_ONECAP) |
| continue; |
| } |
| } |
| |
| /* If the word ends the sequence of compound flags of the |
| * words must match with one of the COMPOUNDRULE items and |
| * the number of syllables must not be too large. */ |
| mip->mi_compflags[mip->mi_complen] = ((unsigned)flags >> 24); |
| mip->mi_compflags[mip->mi_complen + 1] = NUL; |
| if (word_ends) |
| { |
| char_u fword[MAXWLEN]; |
| |
| if (slang->sl_compsylmax < MAXWLEN) |
| { |
| /* "fword" is only needed for checking syllables. */ |
| if (ptr == mip->mi_word) |
| (void)spell_casefold(ptr, wlen, fword, MAXWLEN); |
| else |
| vim_strncpy(fword, ptr, endlen[endidxcnt]); |
| } |
| if (!can_compound(slang, fword, mip->mi_compflags)) |
| continue; |
| } |
| else if (slang->sl_comprules != NULL |
| && !match_compoundrule(slang, mip->mi_compflags)) |
| /* The compound flags collected so far do not match any |
| * COMPOUNDRULE, discard the compounded word. */ |
| continue; |
| } |
| |
| /* Check NEEDCOMPOUND: can't use word without compounding. */ |
| else if (flags & WF_NEEDCOMP) |
| continue; |
| |
| nobreak_result = SP_OK; |
| |
| if (!word_ends) |
| { |
| int save_result = mip->mi_result; |
| char_u *save_end = mip->mi_end; |
| langp_T *save_lp = mip->mi_lp; |
| int lpi; |
| |
| /* Check that a valid word follows. If there is one and we |
| * are compounding, it will set "mi_result", thus we are |
| * always finished here. For NOBREAK we only check that a |
| * valid word follows. |
| * Recursive! */ |
| if (slang->sl_nobreak) |
| mip->mi_result = SP_BAD; |
| |
| /* Find following word in case-folded tree. */ |
| mip->mi_compoff = endlen[endidxcnt]; |
| #ifdef FEAT_MBYTE |
| if (has_mbyte && mode == FIND_KEEPWORD) |
| { |
| /* Compute byte length in case-folded word from "wlen": |
| * byte length in keep-case word. Length may change when |
| * folding case. This can be slow, take a shortcut when |
| * the case-folded word is equal to the keep-case word. */ |
| p = mip->mi_fword; |
| if (STRNCMP(ptr, p, wlen) != 0) |
| { |
| for (s = ptr; s < ptr + wlen; mb_ptr_adv(s)) |
| mb_ptr_adv(p); |
| mip->mi_compoff = (int)(p - mip->mi_fword); |
| } |
| } |
| #endif |
| #if 0 /* Disabled, see below */ |
| c = mip->mi_compoff; |
| #endif |
| ++mip->mi_complen; |
| if (flags & WF_COMPROOT) |
| ++mip->mi_compextra; |
| |
| /* For NOBREAK we need to try all NOBREAK languages, at least |
| * to find the ".add" file(s). */ |
| for (lpi = 0; lpi < mip->mi_win->w_s->b_langp.ga_len; ++lpi) |
| { |
| if (slang->sl_nobreak) |
| { |
| mip->mi_lp = LANGP_ENTRY(mip->mi_win->w_s->b_langp, lpi); |
| if (mip->mi_lp->lp_slang->sl_fidxs == NULL |
| || !mip->mi_lp->lp_slang->sl_nobreak) |
| continue; |
| } |
| |
| find_word(mip, FIND_COMPOUND); |
| |
| /* When NOBREAK any word that matches is OK. Otherwise we |
| * need to find the longest match, thus try with keep-case |
| * and prefix too. */ |
| if (!slang->sl_nobreak || mip->mi_result == SP_BAD) |
| { |
| /* Find following word in keep-case tree. */ |
| mip->mi_compoff = wlen; |
| find_word(mip, FIND_KEEPCOMPOUND); |
| |
| #if 0 /* Disabled, a prefix must not appear halfway a compound word, |
| unless the COMPOUNDPERMITFLAG is used and then it can't be a |
| postponed prefix. */ |
| if (!slang->sl_nobreak || mip->mi_result == SP_BAD) |
| { |
| /* Check for following word with prefix. */ |
| mip->mi_compoff = c; |
| find_prefix(mip, FIND_COMPOUND); |
| } |
| #endif |
| } |
| |
| if (!slang->sl_nobreak) |
| break; |
| } |
| --mip->mi_complen; |
| if (flags & WF_COMPROOT) |
| --mip->mi_compextra; |
| mip->mi_lp = save_lp; |
| |
| if (slang->sl_nobreak) |
| { |
| nobreak_result = mip->mi_result; |
| mip->mi_result = save_result; |
| mip->mi_end = save_end; |
| } |
| else |
| { |
| if (mip->mi_result == SP_OK) |
| break; |
| continue; |
| } |
| } |
| |
| if (flags & WF_BANNED) |
| res = SP_BANNED; |
| else if (flags & WF_REGION) |
| { |
| /* Check region. */ |
| if ((mip->mi_lp->lp_region & (flags >> 16)) != 0) |
| res = SP_OK; |
| else |
| res = SP_LOCAL; |
| } |
| else if (flags & WF_RARE) |
| res = SP_RARE; |
| else |
| res = SP_OK; |
| |
| /* Always use the longest match and the best result. For NOBREAK |
| * we separately keep the longest match without a following good |
| * word as a fall-back. */ |
| if (nobreak_result == SP_BAD) |
| { |
| if (mip->mi_result2 > res) |
| { |
| mip->mi_result2 = res; |
| mip->mi_end2 = mip->mi_word + wlen; |
| } |
| else if (mip->mi_result2 == res |
| && mip->mi_end2 < mip->mi_word + wlen) |
| mip->mi_end2 = mip->mi_word + wlen; |
| } |
| else if (mip->mi_result > res) |
| { |
| mip->mi_result = res; |
| mip->mi_end = mip->mi_word + wlen; |
| } |
| else if (mip->mi_result == res && mip->mi_end < mip->mi_word + wlen) |
| mip->mi_end = mip->mi_word + wlen; |
| |
| if (mip->mi_result == SP_OK) |
| break; |
| } |
| |
| if (mip->mi_result == SP_OK) |
| break; |
| } |
| } |
| |
| /* |
| * Return TRUE if there is a match between the word ptr[wlen] and |
| * CHECKCOMPOUNDPATTERN rules, assuming that we will concatenate with another |
| * word. |
| * A match means that the first part of CHECKCOMPOUNDPATTERN matches at the |
| * end of ptr[wlen] and the second part matches after it. |
| */ |
| static int |
| match_checkcompoundpattern( |
| char_u *ptr, |
| int wlen, |
| garray_T *gap) /* &sl_comppat */ |
| { |
| int i; |
| char_u *p; |
| int len; |
| |
| for (i = 0; i + 1 < gap->ga_len; i += 2) |
| { |
| p = ((char_u **)gap->ga_data)[i + 1]; |
| if (STRNCMP(ptr + wlen, p, STRLEN(p)) == 0) |
| { |
| /* Second part matches at start of following compound word, now |
| * check if first part matches at end of previous word. */ |
| p = ((char_u **)gap->ga_data)[i]; |
| len = (int)STRLEN(p); |
| if (len <= wlen && STRNCMP(ptr + wlen - len, p, len) == 0) |
| return TRUE; |
| } |
| } |
| return FALSE; |
| } |
| |
| /* |
| * Return TRUE if "flags" is a valid sequence of compound flags and "word" |
| * does not have too many syllables. |
| */ |
| static int |
| can_compound(slang_T *slang, char_u *word, char_u *flags) |
| { |
| #ifdef FEAT_MBYTE |
| char_u uflags[MAXWLEN * 2]; |
| int i; |
| #endif |
| char_u *p; |
| |
| if (slang->sl_compprog == NULL) |
| return FALSE; |
| #ifdef FEAT_MBYTE |
| if (enc_utf8) |
| { |
| /* Need to convert the single byte flags to utf8 characters. */ |
| p = uflags; |
| for (i = 0; flags[i] != NUL; ++i) |
| p += mb_char2bytes(flags[i], p); |
| *p = NUL; |
| p = uflags; |
| } |
| else |
| #endif |
| p = flags; |
| if (!vim_regexec_prog(&slang->sl_compprog, FALSE, p, 0)) |
| return FALSE; |
| |
| /* Count the number of syllables. This may be slow, do it last. If there |
| * are too many syllables AND the number of compound words is above |
| * COMPOUNDWORDMAX then compounding is not allowed. */ |
| if (slang->sl_compsylmax < MAXWLEN |
| && count_syllables(slang, word) > slang->sl_compsylmax) |
| return (int)STRLEN(flags) < slang->sl_compmax; |
| return TRUE; |
| } |
| |
| /* |
| * Return TRUE when the sequence of flags in "compflags" plus "flag" can |
| * possibly form a valid compounded word. This also checks the COMPOUNDRULE |
| * lines if they don't contain wildcards. |
| */ |
| static int |
| can_be_compound( |
| trystate_T *sp, |
| slang_T *slang, |
| char_u *compflags, |
| int flag) |
| { |
| /* If the flag doesn't appear in sl_compstartflags or sl_compallflags |
| * then it can't possibly compound. */ |
| if (!byte_in_str(sp->ts_complen == sp->ts_compsplit |
| ? slang->sl_compstartflags : slang->sl_compallflags, flag)) |
| return FALSE; |
| |
| /* If there are no wildcards, we can check if the flags collected so far |
| * possibly can form a match with COMPOUNDRULE patterns. This only |
| * makes sense when we have two or more words. */ |
| if (slang->sl_comprules != NULL && sp->ts_complen > sp->ts_compsplit) |
| { |
| int v; |
| |
| compflags[sp->ts_complen] = flag; |
| compflags[sp->ts_complen + 1] = NUL; |
| v = match_compoundrule(slang, compflags + sp->ts_compsplit); |
| compflags[sp->ts_complen] = NUL; |
| return v; |
| } |
| |
| return TRUE; |
| } |
| |
| |
| /* |
| * Return TRUE if the compound flags in compflags[] match the start of any |
| * compound rule. This is used to stop trying a compound if the flags |
| * collected so far can't possibly match any compound rule. |
| * Caller must check that slang->sl_comprules is not NULL. |
| */ |
| static int |
| match_compoundrule(slang_T *slang, char_u *compflags) |
| { |
| char_u *p; |
| int i; |
| int c; |
| |
| /* loop over all the COMPOUNDRULE entries */ |
| for (p = slang->sl_comprules; *p != NUL; ++p) |
| { |
| /* loop over the flags in the compound word we have made, match |
| * them against the current rule entry */ |
| for (i = 0; ; ++i) |
| { |
| c = compflags[i]; |
| if (c == NUL) |
| /* found a rule that matches for the flags we have so far */ |
| return TRUE; |
| if (*p == '/' || *p == NUL) |
| break; /* end of rule, it's too short */ |
| if (*p == '[') |
| { |
| int match = FALSE; |
| |
| /* compare against all the flags in [] */ |
| ++p; |
| while (*p != ']' && *p != NUL) |
| if (*p++ == c) |
| match = TRUE; |
| if (!match) |
| break; /* none matches */ |
| } |
| else if (*p != c) |
| break; /* flag of word doesn't match flag in pattern */ |
| ++p; |
| } |
| |
| /* Skip to the next "/", where the next pattern starts. */ |
| p = vim_strchr(p, '/'); |
| if (p == NULL) |
| break; |
| } |
| |
| /* Checked all the rules and none of them match the flags, so there |
| * can't possibly be a compound starting with these flags. */ |
| return FALSE; |
| } |
| |
| /* |
| * Return non-zero if the prefix indicated by "arridx" matches with the prefix |
| * ID in "flags" for the word "word". |
| * The WF_RAREPFX flag is included in the return value for a rare prefix. |
| */ |
| static int |
| valid_word_prefix( |
| int totprefcnt, /* nr of prefix IDs */ |
| int arridx, /* idx in sl_pidxs[] */ |
| int flags, |
| char_u *word, |
| slang_T *slang, |
| int cond_req) /* only use prefixes with a condition */ |
| { |
| int prefcnt; |
| int pidx; |
| regprog_T **rp; |
| int prefid; |
| |
| prefid = (unsigned)flags >> 24; |
| for (prefcnt = totprefcnt - 1; prefcnt >= 0; --prefcnt) |
| { |
| pidx = slang->sl_pidxs[arridx + prefcnt]; |
| |
| /* Check the prefix ID. */ |
| if (prefid != (pidx & 0xff)) |
| continue; |
| |
| /* Check if the prefix doesn't combine and the word already has a |
| * suffix. */ |
| if ((flags & WF_HAS_AFF) && (pidx & WF_PFX_NC)) |
| continue; |
| |
| /* Check the condition, if there is one. The condition index is |
| * stored in the two bytes above the prefix ID byte. */ |
| rp = &slang->sl_prefprog[((unsigned)pidx >> 8) & 0xffff]; |
| if (*rp != NULL) |
| { |
| if (!vim_regexec_prog(rp, FALSE, word, 0)) |
| continue; |
| } |
| else if (cond_req) |
| continue; |
| |
| /* It's a match! Return the WF_ flags. */ |
| return pidx; |
| } |
| return 0; |
| } |
| |
| /* |
| * Check if the word at "mip->mi_word" has a matching prefix. |
| * If it does, then check the following word. |
| * |
| * If "mode" is "FIND_COMPOUND" then do the same after another word, find a |
| * prefix in a compound word. |
| * |
| * For a match mip->mi_result is updated. |
| */ |
| static void |
| find_prefix(matchinf_T *mip, int mode) |
| { |
| idx_T arridx = 0; |
| int len; |
| int wlen = 0; |
| int flen; |
| int c; |
| char_u *ptr; |
| idx_T lo, hi, m; |
| slang_T *slang = mip->mi_lp->lp_slang; |
| char_u *byts; |
| idx_T *idxs; |
| |
| byts = slang->sl_pbyts; |
| if (byts == NULL) |
| return; /* array is empty */ |
| |
| /* We use the case-folded word here, since prefixes are always |
| * case-folded. */ |
| ptr = mip->mi_fword; |
| flen = mip->mi_fwordlen; /* available case-folded bytes */ |
| if (mode == FIND_COMPOUND) |
| { |
| /* Skip over the previously found word(s). */ |
| ptr += mip->mi_compoff; |
| flen -= mip->mi_compoff; |
| } |
| idxs = slang->sl_pidxs; |
| |
| /* |
| * Repeat advancing in the tree until: |
| * - there is a byte that doesn't match, |
| * - we reach the end of the tree, |
| * - or we reach the end of the line. |
| */ |
| for (;;) |
| { |
| if (flen == 0 && *mip->mi_fend != NUL) |
| flen = fold_more(mip); |
| |
| len = byts[arridx++]; |
| |
| /* If the first possible byte is a zero the prefix could end here. |
| * Check if the following word matches and supports the prefix. */ |
| if (byts[arridx] == 0) |
| { |
| /* There can be several prefixes with different conditions. We |
| * try them all, since we don't know which one will give the |
| * longest match. The word is the same each time, pass the list |
| * of possible prefixes to find_word(). */ |
| mip->mi_prefarridx = arridx; |
| mip->mi_prefcnt = len; |
| while (len > 0 && byts[arridx] == 0) |
| { |
| ++arridx; |
| --len; |
| } |
| mip->mi_prefcnt -= len; |
| |
| /* Find the word that comes after the prefix. */ |
| mip->mi_prefixlen = wlen; |
| if (mode == FIND_COMPOUND) |
| /* Skip over the previously found word(s). */ |
| mip->mi_prefixlen += mip->mi_compoff; |
| |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| /* Case-folded length may differ from original length. */ |
| mip->mi_cprefixlen = nofold_len(mip->mi_fword, |
| mip->mi_prefixlen, mip->mi_word); |
| } |
| else |
| mip->mi_cprefixlen = mip->mi_prefixlen; |
| #endif |
| find_word(mip, FIND_PREFIX); |
| |
| |
| if (len == 0) |
| break; /* no children, word must end here */ |
| } |
| |
| /* Stop looking at end of the line. */ |
| if (ptr[wlen] == NUL) |
| break; |
| |
| /* Perform a binary search in the list of accepted bytes. */ |
| c = ptr[wlen]; |
| lo = arridx; |
| hi = arridx + len - 1; |
| while (lo < hi) |
| { |
| m = (lo + hi) / 2; |
| if (byts[m] > c) |
| hi = m - 1; |
| else if (byts[m] < c) |
| lo = m + 1; |
| else |
| { |
| lo = hi = m; |
| break; |
| } |
| } |
| |
| /* Stop if there is no matching byte. */ |
| if (hi < lo || byts[lo] != c) |
| break; |
| |
| /* Continue at the child (if there is one). */ |
| arridx = idxs[lo]; |
| ++wlen; |
| --flen; |
| } |
| } |
| |
| /* |
| * Need to fold at least one more character. Do until next non-word character |
| * for efficiency. Include the non-word character too. |
| * Return the length of the folded chars in bytes. |
| */ |
| static int |
| fold_more(matchinf_T *mip) |
| { |
| int flen; |
| char_u *p; |
| |
| p = mip->mi_fend; |
| do |
| { |
| mb_ptr_adv(mip->mi_fend); |
| } while (*mip->mi_fend != NUL && spell_iswordp(mip->mi_fend, mip->mi_win)); |
| |
| /* Include the non-word character so that we can check for the word end. */ |
| if (*mip->mi_fend != NUL) |
| mb_ptr_adv(mip->mi_fend); |
| |
| (void)spell_casefold(p, (int)(mip->mi_fend - p), |
| mip->mi_fword + mip->mi_fwordlen, |
| MAXWLEN - mip->mi_fwordlen); |
| flen = (int)STRLEN(mip->mi_fword + mip->mi_fwordlen); |
| mip->mi_fwordlen += flen; |
| return flen; |
| } |
| |
| /* |
| * Check case flags for a word. Return TRUE if the word has the requested |
| * case. |
| */ |
| static int |
| spell_valid_case( |
| int wordflags, /* flags for the checked word. */ |
| int treeflags) /* flags for the word in the spell tree */ |
| { |
| return ((wordflags == WF_ALLCAP && (treeflags & WF_FIXCAP) == 0) |
| || ((treeflags & (WF_ALLCAP | WF_KEEPCAP)) == 0 |
| && ((treeflags & WF_ONECAP) == 0 |
| || (wordflags & WF_ONECAP) != 0))); |
| } |
| |
| /* |
| * Return TRUE if spell checking is not enabled. |
| */ |
| static int |
| no_spell_checking(win_T *wp) |
| { |
| if (!wp->w_p_spell || *wp->w_s->b_p_spl == NUL |
| || wp->w_s->b_langp.ga_len == 0) |
| { |
| EMSG(_("E756: Spell checking is not enabled")); |
| return TRUE; |
| } |
| return FALSE; |
| } |
| |
| /* |
| * Move to next spell error. |
| * "curline" is FALSE for "[s", "]s", "[S" and "]S". |
| * "curline" is TRUE to find word under/after cursor in the same line. |
| * For Insert mode completion "dir" is BACKWARD and "curline" is TRUE: move |
| * to after badly spelled word before the cursor. |
| * Return 0 if not found, length of the badly spelled word otherwise. |
| */ |
| int |
| spell_move_to( |
| win_T *wp, |
| int dir, /* FORWARD or BACKWARD */ |
| int allwords, /* TRUE for "[s"/"]s", FALSE for "[S"/"]S" */ |
| int curline, |
| hlf_T *attrp) /* return: attributes of bad word or NULL |
| (only when "dir" is FORWARD) */ |
| { |
| linenr_T lnum; |
| pos_T found_pos; |
| int found_len = 0; |
| char_u *line; |
| char_u *p; |
| char_u *endp; |
| hlf_T attr; |
| int len; |
| #ifdef FEAT_SYN_HL |
| int has_syntax = syntax_present(wp); |
| #endif |
| int col; |
| int can_spell; |
| char_u *buf = NULL; |
| int buflen = 0; |
| int skip = 0; |
| int capcol = -1; |
| int found_one = FALSE; |
| int wrapped = FALSE; |
| |
| if (no_spell_checking(wp)) |
| return 0; |
| |
| /* |
| * Start looking for bad word at the start of the line, because we can't |
| * start halfway a word, we don't know where it starts or ends. |
| * |
| * When searching backwards, we continue in the line to find the last |
| * bad word (in the cursor line: before the cursor). |
| * |
| * We concatenate the start of the next line, so that wrapped words work |
| * (e.g. "et<line-break>cetera"). Doesn't work when searching backwards |
| * though... |
| */ |
| lnum = wp->w_cursor.lnum; |
| clearpos(&found_pos); |
| |
| while (!got_int) |
| { |
| line = ml_get_buf(wp->w_buffer, lnum, FALSE); |
| |
| len = (int)STRLEN(line); |
| if (buflen < len + MAXWLEN + 2) |
| { |
| vim_free(buf); |
| buflen = len + MAXWLEN + 2; |
| buf = alloc(buflen); |
| if (buf == NULL) |
| break; |
| } |
| |
| /* In first line check first word for Capital. */ |
| if (lnum == 1) |
| capcol = 0; |
| |
| /* For checking first word with a capital skip white space. */ |
| if (capcol == 0) |
| capcol = (int)(skipwhite(line) - line); |
| else if (curline && wp == curwin) |
| { |
| /* For spellbadword(): check if first word needs a capital. */ |
| col = (int)(skipwhite(line) - line); |
| if (check_need_cap(lnum, col)) |
| capcol = col; |
| |
| /* Need to get the line again, may have looked at the previous |
| * one. */ |
| line = ml_get_buf(wp->w_buffer, lnum, FALSE); |
| } |
| |
| /* Copy the line into "buf" and append the start of the next line if |
| * possible. */ |
| STRCPY(buf, line); |
| if (lnum < wp->w_buffer->b_ml.ml_line_count) |
| spell_cat_line(buf + STRLEN(buf), |
| ml_get_buf(wp->w_buffer, lnum + 1, FALSE), MAXWLEN); |
| |
| p = buf + skip; |
| endp = buf + len; |
| while (p < endp) |
| { |
| /* When searching backward don't search after the cursor. Unless |
| * we wrapped around the end of the buffer. */ |
| if (dir == BACKWARD |
| && lnum == wp->w_cursor.lnum |
| && !wrapped |
| && (colnr_T)(p - buf) >= wp->w_cursor.col) |
| break; |
| |
| /* start of word */ |
| attr = HLF_COUNT; |
| len = spell_check(wp, p, &attr, &capcol, FALSE); |
| |
| if (attr != HLF_COUNT) |
| { |
| /* We found a bad word. Check the attribute. */ |
| if (allwords || attr == HLF_SPB) |
| { |
| /* When searching forward only accept a bad word after |
| * the cursor. */ |
| if (dir == BACKWARD |
| || lnum != wp->w_cursor.lnum |
| || (lnum == wp->w_cursor.lnum |
| && (wrapped |
| || (colnr_T)(curline ? p - buf + len |
| : p - buf) |
| > wp->w_cursor.col))) |
| { |
| #ifdef FEAT_SYN_HL |
| if (has_syntax) |
| { |
| col = (int)(p - buf); |
| (void)syn_get_id(wp, lnum, (colnr_T)col, |
| FALSE, &can_spell, FALSE); |
| if (!can_spell) |
| attr = HLF_COUNT; |
| } |
| else |
| #endif |
| can_spell = TRUE; |
| |
| if (can_spell) |
| { |
| found_one = TRUE; |
| found_pos.lnum = lnum; |
| found_pos.col = (int)(p - buf); |
| #ifdef FEAT_VIRTUALEDIT |
| found_pos.coladd = 0; |
| #endif |
| if (dir == FORWARD) |
| { |
| /* No need to search further. */ |
| wp->w_cursor = found_pos; |
| vim_free(buf); |
| if (attrp != NULL) |
| *attrp = attr; |
| return len; |
| } |
| else if (curline) |
| /* Insert mode completion: put cursor after |
| * the bad word. */ |
| found_pos.col += len; |
| found_len = len; |
| } |
| } |
| else |
| found_one = TRUE; |
| } |
| } |
| |
| /* advance to character after the word */ |
| p += len; |
| capcol -= len; |
| } |
| |
| if (dir == BACKWARD && found_pos.lnum != 0) |
| { |
| /* Use the last match in the line (before the cursor). */ |
| wp->w_cursor = found_pos; |
| vim_free(buf); |
| return found_len; |
| } |
| |
| if (curline) |
| break; /* only check cursor line */ |
| |
| /* Advance to next line. */ |
| if (dir == BACKWARD) |
| { |
| /* If we are back at the starting line and searched it again there |
| * is no match, give up. */ |
| if (lnum == wp->w_cursor.lnum && wrapped) |
| break; |
| |
| if (lnum > 1) |
| --lnum; |
| else if (!p_ws) |
| break; /* at first line and 'nowrapscan' */ |
| else |
| { |
| /* Wrap around to the end of the buffer. May search the |
| * starting line again and accept the last match. */ |
| lnum = wp->w_buffer->b_ml.ml_line_count; |
| wrapped = TRUE; |
| if (!shortmess(SHM_SEARCH)) |
| give_warning((char_u *)_(top_bot_msg), TRUE); |
| } |
| capcol = -1; |
| } |
| else |
| { |
| if (lnum < wp->w_buffer->b_ml.ml_line_count) |
| ++lnum; |
| else if (!p_ws) |
| break; /* at first line and 'nowrapscan' */ |
| else |
| { |
| /* Wrap around to the start of the buffer. May search the |
| * starting line again and accept the first match. */ |
| lnum = 1; |
| wrapped = TRUE; |
| if (!shortmess(SHM_SEARCH)) |
| give_warning((char_u *)_(bot_top_msg), TRUE); |
| } |
| |
| /* If we are back at the starting line and there is no match then |
| * give up. */ |
| if (lnum == wp->w_cursor.lnum && (!found_one || wrapped)) |
| break; |
| |
| /* Skip the characters at the start of the next line that were |
| * included in a match crossing line boundaries. */ |
| if (attr == HLF_COUNT) |
| skip = (int)(p - endp); |
| else |
| skip = 0; |
| |
| /* Capcol skips over the inserted space. */ |
| --capcol; |
| |
| /* But after empty line check first word in next line */ |
| if (*skipwhite(line) == NUL) |
| capcol = 0; |
| } |
| |
| line_breakcheck(); |
| } |
| |
| vim_free(buf); |
| return 0; |
| } |
| |
| /* |
| * For spell checking: concatenate the start of the following line "line" into |
| * "buf", blanking-out special characters. Copy less then "maxlen" bytes. |
| * Keep the blanks at the start of the next line, this is used in win_line() |
| * to skip those bytes if the word was OK. |
| */ |
| void |
| spell_cat_line(char_u *buf, char_u *line, int maxlen) |
| { |
| char_u *p; |
| int n; |
| |
| p = skipwhite(line); |
| while (vim_strchr((char_u *)"*#/\"\t", *p) != NULL) |
| p = skipwhite(p + 1); |
| |
| if (*p != NUL) |
| { |
| /* Only worth concatenating if there is something else than spaces to |
| * concatenate. */ |
| n = (int)(p - line) + 1; |
| if (n < maxlen - 1) |
| { |
| vim_memset(buf, ' ', n); |
| vim_strncpy(buf + n, p, maxlen - 1 - n); |
| } |
| } |
| } |
| |
| /* |
| * Structure used for the cookie argument of do_in_runtimepath(). |
| */ |
| typedef struct spelload_S |
| { |
| char_u sl_lang[MAXWLEN + 1]; /* language name */ |
| slang_T *sl_slang; /* resulting slang_T struct */ |
| int sl_nobreak; /* NOBREAK language found */ |
| } spelload_T; |
| |
| /* |
| * Load word list(s) for "lang" from Vim spell file(s). |
| * "lang" must be the language without the region: e.g., "en". |
| */ |
| static void |
| spell_load_lang(char_u *lang) |
| { |
| char_u fname_enc[85]; |
| int r; |
| spelload_T sl; |
| #ifdef FEAT_AUTOCMD |
| int round; |
| #endif |
| |
| /* Copy the language name to pass it to spell_load_cb() as a cookie. |
| * It's truncated when an error is detected. */ |
| STRCPY(sl.sl_lang, lang); |
| sl.sl_slang = NULL; |
| sl.sl_nobreak = FALSE; |
| |
| #ifdef FEAT_AUTOCMD |
| /* We may retry when no spell file is found for the language, an |
| * autocommand may load it then. */ |
| for (round = 1; round <= 2; ++round) |
| #endif |
| { |
| /* |
| * Find the first spell file for "lang" in 'runtimepath' and load it. |
| */ |
| vim_snprintf((char *)fname_enc, sizeof(fname_enc) - 5, |
| #ifdef VMS |
| "spell/%s_%s.spl", |
| #else |
| "spell/%s.%s.spl", |
| #endif |
| lang, spell_enc()); |
| r = do_in_runtimepath(fname_enc, 0, spell_load_cb, &sl); |
| |
| if (r == FAIL && *sl.sl_lang != NUL) |
| { |
| /* Try loading the ASCII version. */ |
| vim_snprintf((char *)fname_enc, sizeof(fname_enc) - 5, |
| #ifdef VMS |
| "spell/%s_ascii.spl", |
| #else |
| "spell/%s.ascii.spl", |
| #endif |
| lang); |
| r = do_in_runtimepath(fname_enc, 0, spell_load_cb, &sl); |
| |
| #ifdef FEAT_AUTOCMD |
| if (r == FAIL && *sl.sl_lang != NUL && round == 1 |
| && apply_autocmds(EVENT_SPELLFILEMISSING, lang, |
| curbuf->b_fname, FALSE, curbuf)) |
| continue; |
| break; |
| #endif |
| } |
| #ifdef FEAT_AUTOCMD |
| break; |
| #endif |
| } |
| |
| if (r == FAIL) |
| { |
| smsg((char_u *) |
| #ifdef VMS |
| _("Warning: Cannot find word list \"%s_%s.spl\" or \"%s_ascii.spl\""), |
| #else |
| _("Warning: Cannot find word list \"%s.%s.spl\" or \"%s.ascii.spl\""), |
| #endif |
| lang, spell_enc(), lang); |
| } |
| else if (sl.sl_slang != NULL) |
| { |
| /* At least one file was loaded, now load ALL the additions. */ |
| STRCPY(fname_enc + STRLEN(fname_enc) - 3, "add.spl"); |
| do_in_runtimepath(fname_enc, DIP_ALL, spell_load_cb, &sl); |
| } |
| } |
| |
| /* |
| * Return the encoding used for spell checking: Use 'encoding', except that we |
| * use "latin1" for "latin9". And limit to 60 characters (just in case). |
| */ |
| char_u * |
| spell_enc(void) |
| { |
| |
| #ifdef FEAT_MBYTE |
| if (STRLEN(p_enc) < 60 && STRCMP(p_enc, "iso-8859-15") != 0) |
| return p_enc; |
| #endif |
| return (char_u *)"latin1"; |
| } |
| |
| /* |
| * Get the name of the .spl file for the internal wordlist into |
| * "fname[MAXPATHL]". |
| */ |
| static void |
| int_wordlist_spl(char_u *fname) |
| { |
| vim_snprintf((char *)fname, MAXPATHL, SPL_FNAME_TMPL, |
| int_wordlist, spell_enc()); |
| } |
| |
| /* |
| * Allocate a new slang_T for language "lang". "lang" can be NULL. |
| * Caller must fill "sl_next". |
| */ |
| slang_T * |
| slang_alloc(char_u *lang) |
| { |
| slang_T *lp; |
| |
| lp = (slang_T *)alloc_clear(sizeof(slang_T)); |
| if (lp != NULL) |
| { |
| if (lang != NULL) |
| lp->sl_name = vim_strsave(lang); |
| ga_init2(&lp->sl_rep, sizeof(fromto_T), 10); |
| ga_init2(&lp->sl_repsal, sizeof(fromto_T), 10); |
| lp->sl_compmax = MAXWLEN; |
| lp->sl_compsylmax = MAXWLEN; |
| hash_init(&lp->sl_wordcount); |
| } |
| |
| return lp; |
| } |
| |
| /* |
| * Free the contents of an slang_T and the structure itself. |
| */ |
| void |
| slang_free(slang_T *lp) |
| { |
| vim_free(lp->sl_name); |
| vim_free(lp->sl_fname); |
| slang_clear(lp); |
| vim_free(lp); |
| } |
| |
| /* |
| * Clear an slang_T so that the file can be reloaded. |
| */ |
| void |
| slang_clear(slang_T *lp) |
| { |
| garray_T *gap; |
| fromto_T *ftp; |
| salitem_T *smp; |
| int i; |
| int round; |
| |
| vim_free(lp->sl_fbyts); |
| lp->sl_fbyts = NULL; |
| vim_free(lp->sl_kbyts); |
| lp->sl_kbyts = NULL; |
| vim_free(lp->sl_pbyts); |
| lp->sl_pbyts = NULL; |
| |
| vim_free(lp->sl_fidxs); |
| lp->sl_fidxs = NULL; |
| vim_free(lp->sl_kidxs); |
| lp->sl_kidxs = NULL; |
| vim_free(lp->sl_pidxs); |
| lp->sl_pidxs = NULL; |
| |
| for (round = 1; round <= 2; ++round) |
| { |
| gap = round == 1 ? &lp->sl_rep : &lp->sl_repsal; |
| while (gap->ga_len > 0) |
| { |
| ftp = &((fromto_T *)gap->ga_data)[--gap->ga_len]; |
| vim_free(ftp->ft_from); |
| vim_free(ftp->ft_to); |
| } |
| ga_clear(gap); |
| } |
| |
| gap = &lp->sl_sal; |
| if (lp->sl_sofo) |
| { |
| /* "ga_len" is set to 1 without adding an item for latin1 */ |
| if (gap->ga_data != NULL) |
| /* SOFOFROM and SOFOTO items: free lists of wide characters. */ |
| for (i = 0; i < gap->ga_len; ++i) |
| vim_free(((int **)gap->ga_data)[i]); |
| } |
| else |
| /* SAL items: free salitem_T items */ |
| while (gap->ga_len > 0) |
| { |
| smp = &((salitem_T *)gap->ga_data)[--gap->ga_len]; |
| vim_free(smp->sm_lead); |
| /* Don't free sm_oneof and sm_rules, they point into sm_lead. */ |
| vim_free(smp->sm_to); |
| #ifdef FEAT_MBYTE |
| vim_free(smp->sm_lead_w); |
| vim_free(smp->sm_oneof_w); |
| vim_free(smp->sm_to_w); |
| #endif |
| } |
| ga_clear(gap); |
| |
| for (i = 0; i < lp->sl_prefixcnt; ++i) |
| vim_regfree(lp->sl_prefprog[i]); |
| lp->sl_prefixcnt = 0; |
| vim_free(lp->sl_prefprog); |
| lp->sl_prefprog = NULL; |
| |
| vim_free(lp->sl_info); |
| lp->sl_info = NULL; |
| |
| vim_free(lp->sl_midword); |
| lp->sl_midword = NULL; |
| |
| vim_regfree(lp->sl_compprog); |
| vim_free(lp->sl_comprules); |
| vim_free(lp->sl_compstartflags); |
| vim_free(lp->sl_compallflags); |
| lp->sl_compprog = NULL; |
| lp->sl_comprules = NULL; |
| lp->sl_compstartflags = NULL; |
| lp->sl_compallflags = NULL; |
| |
| vim_free(lp->sl_syllable); |
| lp->sl_syllable = NULL; |
| ga_clear(&lp->sl_syl_items); |
| |
| ga_clear_strings(&lp->sl_comppat); |
| |
| hash_clear_all(&lp->sl_wordcount, WC_KEY_OFF); |
| hash_init(&lp->sl_wordcount); |
| |
| #ifdef FEAT_MBYTE |
| hash_clear_all(&lp->sl_map_hash, 0); |
| #endif |
| |
| /* Clear info from .sug file. */ |
| slang_clear_sug(lp); |
| |
| lp->sl_compmax = MAXWLEN; |
| lp->sl_compminlen = 0; |
| lp->sl_compsylmax = MAXWLEN; |
| lp->sl_regions[0] = NUL; |
| } |
| |
| /* |
| * Clear the info from the .sug file in "lp". |
| */ |
| void |
| slang_clear_sug(slang_T *lp) |
| { |
| vim_free(lp->sl_sbyts); |
| lp->sl_sbyts = NULL; |
| vim_free(lp->sl_sidxs); |
| lp->sl_sidxs = NULL; |
| close_spellbuf(lp->sl_sugbuf); |
| lp->sl_sugbuf = NULL; |
| lp->sl_sugloaded = FALSE; |
| lp->sl_sugtime = 0; |
| } |
| |
| /* |
| * Load one spell file and store the info into a slang_T. |
| * Invoked through do_in_runtimepath(). |
| */ |
| static void |
| spell_load_cb(char_u *fname, void *cookie) |
| { |
| spelload_T *slp = (spelload_T *)cookie; |
| slang_T *slang; |
| |
| slang = spell_load_file(fname, slp->sl_lang, NULL, FALSE); |
| if (slang != NULL) |
| { |
| /* When a previously loaded file has NOBREAK also use it for the |
| * ".add" files. */ |
| if (slp->sl_nobreak && slang->sl_add) |
| slang->sl_nobreak = TRUE; |
| else if (slang->sl_nobreak) |
| slp->sl_nobreak = TRUE; |
| |
| slp->sl_slang = slang; |
| } |
| } |
| |
| |
| /* |
| * Add a word to the hashtable of common words. |
| * If it's already there then the counter is increased. |
| */ |
| void |
| count_common_word( |
| slang_T *lp, |
| char_u *word, |
| int len, /* word length, -1 for upto NUL */ |
| int count) /* 1 to count once, 10 to init */ |
| { |
| hash_T hash; |
| hashitem_T *hi; |
| wordcount_T *wc; |
| char_u buf[MAXWLEN]; |
| char_u *p; |
| |
| if (len == -1) |
| p = word; |
| else |
| { |
| vim_strncpy(buf, word, len); |
| p = buf; |
| } |
| |
| hash = hash_hash(p); |
| hi = hash_lookup(&lp->sl_wordcount, p, hash); |
| if (HASHITEM_EMPTY(hi)) |
| { |
| wc = (wordcount_T *)alloc((unsigned)(sizeof(wordcount_T) + STRLEN(p))); |
| if (wc == NULL) |
| return; |
| STRCPY(wc->wc_word, p); |
| wc->wc_count = count; |
| hash_add_item(&lp->sl_wordcount, hi, wc->wc_word, hash); |
| } |
| else |
| { |
| wc = HI2WC(hi); |
| if ((wc->wc_count += count) < (unsigned)count) /* check for overflow */ |
| wc->wc_count = MAXWORDCOUNT; |
| } |
| } |
| |
| /* |
| * Adjust the score of common words. |
| */ |
| static int |
| score_wordcount_adj( |
| slang_T *slang, |
| int score, |
| char_u *word, |
| int split) /* word was split, less bonus */ |
| { |
| hashitem_T *hi; |
| wordcount_T *wc; |
| int bonus; |
| int newscore; |
| |
| hi = hash_find(&slang->sl_wordcount, word); |
| if (!HASHITEM_EMPTY(hi)) |
| { |
| wc = HI2WC(hi); |
| if (wc->wc_count < SCORE_THRES2) |
| bonus = SCORE_COMMON1; |
| else if (wc->wc_count < SCORE_THRES3) |
| bonus = SCORE_COMMON2; |
| else |
| bonus = SCORE_COMMON3; |
| if (split) |
| newscore = score - bonus / 2; |
| else |
| newscore = score - bonus; |
| if (newscore < 0) |
| return 0; |
| return newscore; |
| } |
| return score; |
| } |
| |
| |
| /* |
| * Return TRUE if byte "n" appears in "str". |
| * Like strchr() but independent of locale. |
| */ |
| int |
| byte_in_str(char_u *str, int n) |
| { |
| char_u *p; |
| |
| for (p = str; *p != NUL; ++p) |
| if (*p == n) |
| return TRUE; |
| return FALSE; |
| } |
| |
| #define SY_MAXLEN 30 |
| typedef struct syl_item_S |
| { |
| char_u sy_chars[SY_MAXLEN]; /* the sequence of chars */ |
| int sy_len; |
| } syl_item_T; |
| |
| /* |
| * Truncate "slang->sl_syllable" at the first slash and put the following items |
| * in "slang->sl_syl_items". |
| */ |
| int |
| init_syl_tab(slang_T *slang) |
| { |
| char_u *p; |
| char_u *s; |
| int l; |
| syl_item_T *syl; |
| |
| ga_init2(&slang->sl_syl_items, sizeof(syl_item_T), 4); |
| p = vim_strchr(slang->sl_syllable, '/'); |
| while (p != NULL) |
| { |
| *p++ = NUL; |
| if (*p == NUL) /* trailing slash */ |
| break; |
| s = p; |
| p = vim_strchr(p, '/'); |
| if (p == NULL) |
| l = (int)STRLEN(s); |
| else |
| l = (int)(p - s); |
| if (l >= SY_MAXLEN) |
| return SP_FORMERROR; |
| if (ga_grow(&slang->sl_syl_items, 1) == FAIL) |
| return SP_OTHERERROR; |
| syl = ((syl_item_T *)slang->sl_syl_items.ga_data) |
| + slang->sl_syl_items.ga_len++; |
| vim_strncpy(syl->sy_chars, s, l); |
| syl->sy_len = l; |
| } |
| return OK; |
| } |
| |
| /* |
| * Count the number of syllables in "word". |
| * When "word" contains spaces the syllables after the last space are counted. |
| * Returns zero if syllables are not defines. |
| */ |
| static int |
| count_syllables(slang_T *slang, char_u *word) |
| { |
| int cnt = 0; |
| int skip = FALSE; |
| char_u *p; |
| int len; |
| int i; |
| syl_item_T *syl; |
| int c; |
| |
| if (slang->sl_syllable == NULL) |
| return 0; |
| |
| for (p = word; *p != NUL; p += len) |
| { |
| /* When running into a space reset counter. */ |
| if (*p == ' ') |
| { |
| len = 1; |
| cnt = 0; |
| continue; |
| } |
| |
| /* Find longest match of syllable items. */ |
| len = 0; |
| for (i = 0; i < slang->sl_syl_items.ga_len; ++i) |
| { |
| syl = ((syl_item_T *)slang->sl_syl_items.ga_data) + i; |
| if (syl->sy_len > len |
| && STRNCMP(p, syl->sy_chars, syl->sy_len) == 0) |
| len = syl->sy_len; |
| } |
| if (len != 0) /* found a match, count syllable */ |
| { |
| ++cnt; |
| skip = FALSE; |
| } |
| else |
| { |
| /* No recognized syllable item, at least a syllable char then? */ |
| #ifdef FEAT_MBYTE |
| c = mb_ptr2char(p); |
| len = (*mb_ptr2len)(p); |
| #else |
| c = *p; |
| len = 1; |
| #endif |
| if (vim_strchr(slang->sl_syllable, c) == NULL) |
| skip = FALSE; /* No, search for next syllable */ |
| else if (!skip) |
| { |
| ++cnt; /* Yes, count it */ |
| skip = TRUE; /* don't count following syllable chars */ |
| } |
| } |
| } |
| return cnt; |
| } |
| |
| /* |
| * Parse 'spelllang' and set w_s->b_langp accordingly. |
| * Returns NULL if it's OK, an error message otherwise. |
| */ |
| char_u * |
| did_set_spelllang(win_T *wp) |
| { |
| garray_T ga; |
| char_u *splp; |
| char_u *region; |
| char_u region_cp[3]; |
| int filename; |
| int region_mask; |
| slang_T *slang; |
| int c; |
| char_u lang[MAXWLEN + 1]; |
| char_u spf_name[MAXPATHL]; |
| int len; |
| char_u *p; |
| int round; |
| char_u *spf; |
| char_u *use_region = NULL; |
| int dont_use_region = FALSE; |
| int nobreak = FALSE; |
| int i, j; |
| langp_T *lp, *lp2; |
| static int recursive = FALSE; |
| char_u *ret_msg = NULL; |
| char_u *spl_copy; |
| #ifdef FEAT_AUTOCMD |
| bufref_T bufref; |
| |
| set_bufref(&bufref, wp->w_buffer); |
| #endif |
| |
| /* We don't want to do this recursively. May happen when a language is |
| * not available and the SpellFileMissing autocommand opens a new buffer |
| * in which 'spell' is set. */ |
| if (recursive) |
| return NULL; |
| recursive = TRUE; |
| |
| ga_init2(&ga, sizeof(langp_T), 2); |
| clear_midword(wp); |
| |
| /* Make a copy of 'spelllang', the SpellFileMissing autocommands may change |
| * it under our fingers. */ |
| spl_copy = vim_strsave(wp->w_s->b_p_spl); |
| if (spl_copy == NULL) |
| goto theend; |
| |
| #ifdef FEAT_MBYTE |
| wp->w_s->b_cjk = 0; |
| #endif |
| |
| /* Loop over comma separated language names. */ |
| for (splp = spl_copy; *splp != NUL; ) |
| { |
| /* Get one language name. */ |
| copy_option_part(&splp, lang, MAXWLEN, ","); |
| region = NULL; |
| len = (int)STRLEN(lang); |
| |
| if (STRCMP(lang, "cjk") == 0) |
| { |
| #ifdef FEAT_MBYTE |
| wp->w_s->b_cjk = 1; |
| #endif |
| continue; |
| } |
| |
| /* If the name ends in ".spl" use it as the name of the spell file. |
| * If there is a region name let "region" point to it and remove it |
| * from the name. */ |
| if (len > 4 && fnamecmp(lang + len - 4, ".spl") == 0) |
| { |
| filename = TRUE; |
| |
| /* Locate a region and remove it from the file name. */ |
| p = vim_strchr(gettail(lang), '_'); |
| if (p != NULL && ASCII_ISALPHA(p[1]) && ASCII_ISALPHA(p[2]) |
| && !ASCII_ISALPHA(p[3])) |
| { |
| vim_strncpy(region_cp, p + 1, 2); |
| mch_memmove(p, p + 3, len - (p - lang) - 2); |
| len -= 3; |
| region = region_cp; |
| } |
| else |
| dont_use_region = TRUE; |
| |
| /* Check if we loaded this language before. */ |
| for (slang = first_lang; slang != NULL; slang = slang->sl_next) |
| if (fullpathcmp(lang, slang->sl_fname, FALSE) == FPC_SAME) |
| break; |
| } |
| else |
| { |
| filename = FALSE; |
| if (len > 3 && lang[len - 3] == '_') |
| { |
| region = lang + len - 2; |
| len -= 3; |
| lang[len] = NUL; |
| } |
| else |
| dont_use_region = TRUE; |
| |
| /* Check if we loaded this language before. */ |
| for (slang = first_lang; slang != NULL; slang = slang->sl_next) |
| if (STRICMP(lang, slang->sl_name) == 0) |
| break; |
| } |
| |
| if (region != NULL) |
| { |
| /* If the region differs from what was used before then don't |
| * use it for 'spellfile'. */ |
| if (use_region != NULL && STRCMP(region, use_region) != 0) |
| dont_use_region = TRUE; |
| use_region = region; |
| } |
| |
| /* If not found try loading the language now. */ |
| if (slang == NULL) |
| { |
| if (filename) |
| (void)spell_load_file(lang, lang, NULL, FALSE); |
| else |
| { |
| spell_load_lang(lang); |
| #ifdef FEAT_AUTOCMD |
| /* SpellFileMissing autocommands may do anything, including |
| * destroying the buffer we are using... */ |
| if (!bufref_valid(&bufref)) |
| { |
| ret_msg = (char_u *)"E797: SpellFileMissing autocommand deleted buffer"; |
| goto theend; |
| } |
| #endif |
| } |
| } |
| |
| /* |
| * Loop over the languages, there can be several files for "lang". |
| */ |
| for (slang = first_lang; slang != NULL; slang = slang->sl_next) |
| if (filename ? fullpathcmp(lang, slang->sl_fname, FALSE) == FPC_SAME |
| : STRICMP(lang, slang->sl_name) == 0) |
| { |
| region_mask = REGION_ALL; |
| if (!filename && region != NULL) |
| { |
| /* find region in sl_regions */ |
| c = find_region(slang->sl_regions, region); |
| if (c == REGION_ALL) |
| { |
| if (slang->sl_add) |
| { |
| if (*slang->sl_regions != NUL) |
| /* This addition file is for other regions. */ |
| region_mask = 0; |
| } |
| else |
| /* This is probably an error. Give a warning and |
| * accept the words anyway. */ |
| smsg((char_u *) |
| _("Warning: region %s not supported"), |
| region); |
| } |
| else |
| region_mask = 1 << c; |
| } |
| |
| if (region_mask != 0) |
| { |
| if (ga_grow(&ga, 1) == FAIL) |
| { |
| ga_clear(&ga); |
| ret_msg = e_outofmem; |
| goto theend; |
| } |
| LANGP_ENTRY(ga, ga.ga_len)->lp_slang = slang; |
| LANGP_ENTRY(ga, ga.ga_len)->lp_region = region_mask; |
| ++ga.ga_len; |
| use_midword(slang, wp); |
| if (slang->sl_nobreak) |
| nobreak = TRUE; |
| } |
| } |
| } |
| |
| /* round 0: load int_wordlist, if possible. |
| * round 1: load first name in 'spellfile'. |
| * round 2: load second name in 'spellfile. |
| * etc. */ |
| spf = curwin->w_s->b_p_spf; |
| for (round = 0; round == 0 || *spf != NUL; ++round) |
| { |
| if (round == 0) |
| { |
| /* Internal wordlist, if there is one. */ |
| if (int_wordlist == NULL) |
| continue; |
| int_wordlist_spl(spf_name); |
| } |
| else |
| { |
| /* One entry in 'spellfile'. */ |
| copy_option_part(&spf, spf_name, MAXPATHL - 5, ","); |
| STRCAT(spf_name, ".spl"); |
| |
| /* If it was already found above then skip it. */ |
| for (c = 0; c < ga.ga_len; ++c) |
| { |
| p = LANGP_ENTRY(ga, c)->lp_slang->sl_fname; |
| if (p != NULL && fullpathcmp(spf_name, p, FALSE) == FPC_SAME) |
| break; |
| } |
| if (c < ga.ga_len) |
| continue; |
| } |
| |
| /* Check if it was loaded already. */ |
| for (slang = first_lang; slang != NULL; slang = slang->sl_next) |
| if (fullpathcmp(spf_name, slang->sl_fname, FALSE) == FPC_SAME) |
| break; |
| if (slang == NULL) |
| { |
| /* Not loaded, try loading it now. The language name includes the |
| * region name, the region is ignored otherwise. for int_wordlist |
| * use an arbitrary name. */ |
| if (round == 0) |
| STRCPY(lang, "internal wordlist"); |
| else |
| { |
| vim_strncpy(lang, gettail(spf_name), MAXWLEN); |
| p = vim_strchr(lang, '.'); |
| if (p != NULL) |
| *p = NUL; /* truncate at ".encoding.add" */ |
| } |
| slang = spell_load_file(spf_name, lang, NULL, TRUE); |
| |
| /* If one of the languages has NOBREAK we assume the addition |
| * files also have this. */ |
| if (slang != NULL && nobreak) |
| slang->sl_nobreak = TRUE; |
| } |
| if (slang != NULL && ga_grow(&ga, 1) == OK) |
| { |
| region_mask = REGION_ALL; |
| if (use_region != NULL && !dont_use_region) |
| { |
| /* find region in sl_regions */ |
| c = find_region(slang->sl_regions, use_region); |
| if (c != REGION_ALL) |
| region_mask = 1 << c; |
| else if (*slang->sl_regions != NUL) |
| /* This spell file is for other regions. */ |
| region_mask = 0; |
| } |
| |
| if (region_mask != 0) |
| { |
| LANGP_ENTRY(ga, ga.ga_len)->lp_slang = slang; |
| LANGP_ENTRY(ga, ga.ga_len)->lp_sallang = NULL; |
| LANGP_ENTRY(ga, ga.ga_len)->lp_replang = NULL; |
| LANGP_ENTRY(ga, ga.ga_len)->lp_region = region_mask; |
| ++ga.ga_len; |
| use_midword(slang, wp); |
| } |
| } |
| } |
| |
| /* Everything is fine, store the new b_langp value. */ |
| ga_clear(&wp->w_s->b_langp); |
| wp->w_s->b_langp = ga; |
| |
| /* For each language figure out what language to use for sound folding and |
| * REP items. If the language doesn't support it itself use another one |
| * with the same name. E.g. for "en-math" use "en". */ |
| for (i = 0; i < ga.ga_len; ++i) |
| { |
| lp = LANGP_ENTRY(ga, i); |
| |
| /* sound folding */ |
| if (lp->lp_slang->sl_sal.ga_len > 0) |
| /* language does sound folding itself */ |
| lp->lp_sallang = lp->lp_slang; |
| else |
| /* find first similar language that does sound folding */ |
| for (j = 0; j < ga.ga_len; ++j) |
| { |
| lp2 = LANGP_ENTRY(ga, j); |
| if (lp2->lp_slang->sl_sal.ga_len > 0 |
| && STRNCMP(lp->lp_slang->sl_name, |
| lp2->lp_slang->sl_name, 2) == 0) |
| { |
| lp->lp_sallang = lp2->lp_slang; |
| break; |
| } |
| } |
| |
| /* REP items */ |
| if (lp->lp_slang->sl_rep.ga_len > 0) |
| /* language has REP items itself */ |
| lp->lp_replang = lp->lp_slang; |
| else |
| /* find first similar language that has REP items */ |
| for (j = 0; j < ga.ga_len; ++j) |
| { |
| lp2 = LANGP_ENTRY(ga, j); |
| if (lp2->lp_slang->sl_rep.ga_len > 0 |
| && STRNCMP(lp->lp_slang->sl_name, |
| lp2->lp_slang->sl_name, 2) == 0) |
| { |
| lp->lp_replang = lp2->lp_slang; |
| break; |
| } |
| } |
| } |
| |
| theend: |
| vim_free(spl_copy); |
| recursive = FALSE; |
| redraw_win_later(wp, NOT_VALID); |
| return ret_msg; |
| } |
| |
| /* |
| * Clear the midword characters for buffer "buf". |
| */ |
| static void |
| clear_midword(win_T *wp) |
| { |
| vim_memset(wp->w_s->b_spell_ismw, 0, 256); |
| #ifdef FEAT_MBYTE |
| vim_free(wp->w_s->b_spell_ismw_mb); |
| wp->w_s->b_spell_ismw_mb = NULL; |
| #endif |
| } |
| |
| /* |
| * Use the "sl_midword" field of language "lp" for buffer "buf". |
| * They add up to any currently used midword characters. |
| */ |
| static void |
| use_midword(slang_T *lp, win_T *wp) |
| { |
| char_u *p; |
| |
| if (lp->sl_midword == NULL) /* there aren't any */ |
| return; |
| |
| for (p = lp->sl_midword; *p != NUL; ) |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| int c, l, n; |
| char_u *bp; |
| |
| c = mb_ptr2char(p); |
| l = (*mb_ptr2len)(p); |
| if (c < 256 && l <= 2) |
| wp->w_s->b_spell_ismw[c] = TRUE; |
| else if (wp->w_s->b_spell_ismw_mb == NULL) |
| /* First multi-byte char in "b_spell_ismw_mb". */ |
| wp->w_s->b_spell_ismw_mb = vim_strnsave(p, l); |
| else |
| { |
| /* Append multi-byte chars to "b_spell_ismw_mb". */ |
| n = (int)STRLEN(wp->w_s->b_spell_ismw_mb); |
| bp = vim_strnsave(wp->w_s->b_spell_ismw_mb, n + l); |
| if (bp != NULL) |
| { |
| vim_free(wp->w_s->b_spell_ismw_mb); |
| wp->w_s->b_spell_ismw_mb = bp; |
| vim_strncpy(bp + n, p, l); |
| } |
| } |
| p += l; |
| } |
| else |
| #endif |
| wp->w_s->b_spell_ismw[*p++] = TRUE; |
| } |
| |
| /* |
| * Find the region "region[2]" in "rp" (points to "sl_regions"). |
| * Each region is simply stored as the two characters of it's name. |
| * Returns the index if found (first is 0), REGION_ALL if not found. |
| */ |
| static int |
| find_region(char_u *rp, char_u *region) |
| { |
| int i; |
| |
| for (i = 0; ; i += 2) |
| { |
| if (rp[i] == NUL) |
| return REGION_ALL; |
| if (rp[i] == region[0] && rp[i + 1] == region[1]) |
| break; |
| } |
| return i / 2; |
| } |
| |
| /* |
| * Return case type of word: |
| * w word 0 |
| * Word WF_ONECAP |
| * W WORD WF_ALLCAP |
| * WoRd wOrd WF_KEEPCAP |
| */ |
| int |
| captype( |
| char_u *word, |
| char_u *end) /* When NULL use up to NUL byte. */ |
| { |
| char_u *p; |
| int c; |
| int firstcap; |
| int allcap; |
| int past_second = FALSE; /* past second word char */ |
| |
| /* find first letter */ |
| for (p = word; !spell_iswordp_nmw(p, curwin); mb_ptr_adv(p)) |
| if (end == NULL ? *p == NUL : p >= end) |
| return 0; /* only non-word characters, illegal word */ |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| c = mb_ptr2char_adv(&p); |
| else |
| #endif |
| c = *p++; |
| firstcap = allcap = SPELL_ISUPPER(c); |
| |
| /* |
| * Need to check all letters to find a word with mixed upper/lower. |
| * But a word with an upper char only at start is a ONECAP. |
| */ |
| for ( ; end == NULL ? *p != NUL : p < end; mb_ptr_adv(p)) |
| if (spell_iswordp_nmw(p, curwin)) |
| { |
| c = PTR2CHAR(p); |
| if (!SPELL_ISUPPER(c)) |
| { |
| /* UUl -> KEEPCAP */ |
| if (past_second && allcap) |
| return WF_KEEPCAP; |
| allcap = FALSE; |
| } |
| else if (!allcap) |
| /* UlU -> KEEPCAP */ |
| return WF_KEEPCAP; |
| past_second = TRUE; |
| } |
| |
| if (allcap) |
| return WF_ALLCAP; |
| if (firstcap) |
| return WF_ONECAP; |
| return 0; |
| } |
| |
| /* |
| * Like captype() but for a KEEPCAP word add ONECAP if the word starts with a |
| * capital. So that make_case_word() can turn WOrd into Word. |
| * Add ALLCAP for "WOrD". |
| */ |
| static int |
| badword_captype(char_u *word, char_u *end) |
| { |
| int flags = captype(word, end); |
| int c; |
| int l, u; |
| int first; |
| char_u *p; |
| |
| if (flags & WF_KEEPCAP) |
| { |
| /* Count the number of UPPER and lower case letters. */ |
| l = u = 0; |
| first = FALSE; |
| for (p = word; p < end; mb_ptr_adv(p)) |
| { |
| c = PTR2CHAR(p); |
| if (SPELL_ISUPPER(c)) |
| { |
| ++u; |
| if (p == word) |
| first = TRUE; |
| } |
| else |
| ++l; |
| } |
| |
| /* If there are more UPPER than lower case letters suggest an |
| * ALLCAP word. Otherwise, if the first letter is UPPER then |
| * suggest ONECAP. Exception: "ALl" most likely should be "All", |
| * require three upper case letters. */ |
| if (u > l && u > 2) |
| flags |= WF_ALLCAP; |
| else if (first) |
| flags |= WF_ONECAP; |
| |
| if (u >= 2 && l >= 2) /* maCARONI maCAroni */ |
| flags |= WF_MIXCAP; |
| } |
| return flags; |
| } |
| |
| /* |
| * Delete the internal wordlist and its .spl file. |
| */ |
| void |
| spell_delete_wordlist(void) |
| { |
| char_u fname[MAXPATHL]; |
| |
| if (int_wordlist != NULL) |
| { |
| mch_remove(int_wordlist); |
| int_wordlist_spl(fname); |
| mch_remove(fname); |
| vim_free(int_wordlist); |
| int_wordlist = NULL; |
| } |
| } |
| |
| #if defined(FEAT_MBYTE) || defined(EXITFREE) || defined(PROTO) |
| /* |
| * Free all languages. |
| */ |
| void |
| spell_free_all(void) |
| { |
| slang_T *slang; |
| buf_T *buf; |
| |
| /* Go through all buffers and handle 'spelllang'. <VN> */ |
| FOR_ALL_BUFFERS(buf) |
| ga_clear(&buf->b_s.b_langp); |
| |
| while (first_lang != NULL) |
| { |
| slang = first_lang; |
| first_lang = slang->sl_next; |
| slang_free(slang); |
| } |
| |
| spell_delete_wordlist(); |
| |
| vim_free(repl_to); |
| repl_to = NULL; |
| vim_free(repl_from); |
| repl_from = NULL; |
| } |
| #endif |
| |
| #if defined(FEAT_MBYTE) || defined(PROTO) |
| /* |
| * Clear all spelling tables and reload them. |
| * Used after 'encoding' is set and when ":mkspell" was used. |
| */ |
| void |
| spell_reload(void) |
| { |
| win_T *wp; |
| |
| /* Initialize the table for spell_iswordp(). */ |
| init_spell_chartab(); |
| |
| /* Unload all allocated memory. */ |
| spell_free_all(); |
| |
| /* Go through all buffers and handle 'spelllang'. */ |
| FOR_ALL_WINDOWS(wp) |
| { |
| /* Only load the wordlists when 'spelllang' is set and there is a |
| * window for this buffer in which 'spell' is set. */ |
| if (*wp->w_s->b_p_spl != NUL) |
| { |
| if (wp->w_p_spell) |
| { |
| (void)did_set_spelllang(wp); |
| # ifdef FEAT_WINDOWS |
| break; |
| # endif |
| } |
| } |
| } |
| } |
| #endif |
| |
| /* |
| * Opposite of offset2bytes(). |
| * "pp" points to the bytes and is advanced over it. |
| * Returns the offset. |
| */ |
| static int |
| bytes2offset(char_u **pp) |
| { |
| char_u *p = *pp; |
| int nr; |
| int c; |
| |
| c = *p++; |
| if ((c & 0x80) == 0x00) /* 1 byte */ |
| { |
| nr = c - 1; |
| } |
| else if ((c & 0xc0) == 0x80) /* 2 bytes */ |
| { |
| nr = (c & 0x3f) - 1; |
| nr = nr * 255 + (*p++ - 1); |
| } |
| else if ((c & 0xe0) == 0xc0) /* 3 bytes */ |
| { |
| nr = (c & 0x1f) - 1; |
| nr = nr * 255 + (*p++ - 1); |
| nr = nr * 255 + (*p++ - 1); |
| } |
| else /* 4 bytes */ |
| { |
| nr = (c & 0x0f) - 1; |
| nr = nr * 255 + (*p++ - 1); |
| nr = nr * 255 + (*p++ - 1); |
| nr = nr * 255 + (*p++ - 1); |
| } |
| |
| *pp = p; |
| return nr; |
| } |
| |
| |
| /* |
| * Open a spell buffer. This is a nameless buffer that is not in the buffer |
| * list and only contains text lines. Can use a swapfile to reduce memory |
| * use. |
| * Most other fields are invalid! Esp. watch out for string options being |
| * NULL and there is no undo info. |
| * Returns NULL when out of memory. |
| */ |
| buf_T * |
| open_spellbuf(void) |
| { |
| buf_T *buf; |
| |
| buf = (buf_T *)alloc_clear(sizeof(buf_T)); |
| if (buf != NULL) |
| { |
| buf->b_spell = TRUE; |
| buf->b_p_swf = TRUE; /* may create a swap file */ |
| #ifdef FEAT_CRYPT |
| buf->b_p_key = empty_option; |
| #endif |
| ml_open(buf); |
| ml_open_file(buf); /* create swap file now */ |
| } |
| return buf; |
| } |
| |
| /* |
| * Close the buffer used for spell info. |
| */ |
| void |
| close_spellbuf(buf_T *buf) |
| { |
| if (buf != NULL) |
| { |
| ml_close(buf, TRUE); |
| vim_free(buf); |
| } |
| } |
| |
| /* |
| * Init the chartab used for spelling for ASCII. |
| * EBCDIC is not supported! |
| */ |
| void |
| clear_spell_chartab(spelltab_T *sp) |
| { |
| int i; |
| |
| /* Init everything to FALSE. */ |
| vim_memset(sp->st_isw, FALSE, sizeof(sp->st_isw)); |
| vim_memset(sp->st_isu, FALSE, sizeof(sp->st_isu)); |
| for (i = 0; i < 256; ++i) |
| { |
| sp->st_fold[i] = i; |
| sp->st_upper[i] = i; |
| } |
| |
| /* We include digits. A word shouldn't start with a digit, but handling |
| * that is done separately. */ |
| for (i = '0'; i <= '9'; ++i) |
| sp->st_isw[i] = TRUE; |
| for (i = 'A'; i <= 'Z'; ++i) |
| { |
| sp->st_isw[i] = TRUE; |
| sp->st_isu[i] = TRUE; |
| sp->st_fold[i] = i + 0x20; |
| } |
| for (i = 'a'; i <= 'z'; ++i) |
| { |
| sp->st_isw[i] = TRUE; |
| sp->st_upper[i] = i - 0x20; |
| } |
| } |
| |
| /* |
| * Init the chartab used for spelling. Only depends on 'encoding'. |
| * Called once while starting up and when 'encoding' changes. |
| * The default is to use isalpha(), but the spell file should define the word |
| * characters to make it possible that 'encoding' differs from the current |
| * locale. For utf-8 we don't use isalpha() but our own functions. |
| */ |
| void |
| init_spell_chartab(void) |
| { |
| int i; |
| |
| did_set_spelltab = FALSE; |
| clear_spell_chartab(&spelltab); |
| #ifdef FEAT_MBYTE |
| if (enc_dbcs) |
| { |
| /* DBCS: assume double-wide characters are word characters. */ |
| for (i = 128; i <= 255; ++i) |
| if (MB_BYTE2LEN(i) == 2) |
| spelltab.st_isw[i] = TRUE; |
| } |
| else if (enc_utf8) |
| { |
| for (i = 128; i < 256; ++i) |
| { |
| int f = utf_fold(i); |
| int u = utf_toupper(i); |
| |
| spelltab.st_isu[i] = utf_isupper(i); |
| spelltab.st_isw[i] = spelltab.st_isu[i] || utf_islower(i); |
| /* The folded/upper-cased value is different between latin1 and |
| * utf8 for 0xb5, causing E763 for no good reason. Use the latin1 |
| * value for utf-8 to avoid this. */ |
| spelltab.st_fold[i] = (f < 256) ? f : i; |
| spelltab.st_upper[i] = (u < 256) ? u : i; |
| } |
| } |
| else |
| #endif |
| { |
| /* Rough guess: use locale-dependent library functions. */ |
| for (i = 128; i < 256; ++i) |
| { |
| if (MB_ISUPPER(i)) |
| { |
| spelltab.st_isw[i] = TRUE; |
| spelltab.st_isu[i] = TRUE; |
| spelltab.st_fold[i] = MB_TOLOWER(i); |
| } |
| else if (MB_ISLOWER(i)) |
| { |
| spelltab.st_isw[i] = TRUE; |
| spelltab.st_upper[i] = MB_TOUPPER(i); |
| } |
| } |
| } |
| } |
| |
| |
| /* |
| * Return TRUE if "p" points to a word character. |
| * As a special case we see "midword" characters as word character when it is |
| * followed by a word character. This finds they'there but not 'they there'. |
| * Thus this only works properly when past the first character of the word. |
| */ |
| static int |
| spell_iswordp( |
| char_u *p, |
| win_T *wp) /* buffer used */ |
| { |
| #ifdef FEAT_MBYTE |
| char_u *s; |
| int l; |
| int c; |
| |
| if (has_mbyte) |
| { |
| l = MB_BYTE2LEN(*p); |
| s = p; |
| if (l == 1) |
| { |
| /* be quick for ASCII */ |
| if (wp->w_s->b_spell_ismw[*p]) |
| s = p + 1; /* skip a mid-word character */ |
| } |
| else |
| { |
| c = mb_ptr2char(p); |
| if (c < 256 ? wp->w_s->b_spell_ismw[c] |
| : (wp->w_s->b_spell_ismw_mb != NULL |
| && vim_strchr(wp->w_s->b_spell_ismw_mb, c) != NULL)) |
| s = p + l; |
| } |
| |
| c = mb_ptr2char(s); |
| if (c > 255) |
| return spell_mb_isword_class(mb_get_class(s), wp); |
| return spelltab.st_isw[c]; |
| } |
| #endif |
| |
| return spelltab.st_isw[wp->w_s->b_spell_ismw[*p] ? p[1] : p[0]]; |
| } |
| |
| /* |
| * Return TRUE if "p" points to a word character. |
| * Unlike spell_iswordp() this doesn't check for "midword" characters. |
| */ |
| int |
| spell_iswordp_nmw(char_u *p, win_T *wp) |
| { |
| #ifdef FEAT_MBYTE |
| int c; |
| |
| if (has_mbyte) |
| { |
| c = mb_ptr2char(p); |
| if (c > 255) |
| return spell_mb_isword_class(mb_get_class(p), wp); |
| return spelltab.st_isw[c]; |
| } |
| #endif |
| return spelltab.st_isw[*p]; |
| } |
| |
| #ifdef FEAT_MBYTE |
| /* |
| * Return TRUE if word class indicates a word character. |
| * Only for characters above 255. |
| * Unicode subscript and superscript are not considered word characters. |
| * See also dbcs_class() and utf_class() in mbyte.c. |
| */ |
| static int |
| spell_mb_isword_class(int cl, win_T *wp) |
| { |
| if (wp->w_s->b_cjk) |
| /* East Asian characters are not considered word characters. */ |
| return cl == 2 || cl == 0x2800; |
| return cl >= 2 && cl != 0x2070 && cl != 0x2080; |
| } |
| |
| /* |
| * Return TRUE if "p" points to a word character. |
| * Wide version of spell_iswordp(). |
| */ |
| static int |
| spell_iswordp_w(int *p, win_T *wp) |
| { |
| int *s; |
| |
| if (*p < 256 ? wp->w_s->b_spell_ismw[*p] |
| : (wp->w_s->b_spell_ismw_mb != NULL |
| && vim_strchr(wp->w_s->b_spell_ismw_mb, *p) != NULL)) |
| s = p + 1; |
| else |
| s = p; |
| |
| if (*s > 255) |
| { |
| if (enc_utf8) |
| return spell_mb_isword_class(utf_class(*s), wp); |
| if (enc_dbcs) |
| return spell_mb_isword_class( |
| dbcs_class((unsigned)*s >> 8, *s & 0xff), wp); |
| return 0; |
| } |
| return spelltab.st_isw[*s]; |
| } |
| #endif |
| |
| /* |
| * Case-fold "str[len]" into "buf[buflen]". The result is NUL terminated. |
| * Uses the character definitions from the .spl file. |
| * When using a multi-byte 'encoding' the length may change! |
| * Returns FAIL when something wrong. |
| */ |
| int |
| spell_casefold( |
| char_u *str, |
| int len, |
| char_u *buf, |
| int buflen) |
| { |
| int i; |
| |
| if (len >= buflen) |
| { |
| buf[0] = NUL; |
| return FAIL; /* result will not fit */ |
| } |
| |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| int outi = 0; |
| char_u *p; |
| int c; |
| |
| /* Fold one character at a time. */ |
| for (p = str; p < str + len; ) |
| { |
| if (outi + MB_MAXBYTES > buflen) |
| { |
| buf[outi] = NUL; |
| return FAIL; |
| } |
| c = mb_cptr2char_adv(&p); |
| outi += mb_char2bytes(SPELL_TOFOLD(c), buf + outi); |
| } |
| buf[outi] = NUL; |
| } |
| else |
| #endif |
| { |
| /* Be quick for non-multibyte encodings. */ |
| for (i = 0; i < len; ++i) |
| buf[i] = spelltab.st_fold[str[i]]; |
| buf[i] = NUL; |
| } |
| |
| return OK; |
| } |
| |
| /* values for sps_flags */ |
| #define SPS_BEST 1 |
| #define SPS_FAST 2 |
| #define SPS_DOUBLE 4 |
| |
| static int sps_flags = SPS_BEST; /* flags from 'spellsuggest' */ |
| static int sps_limit = 9999; /* max nr of suggestions given */ |
| |
| /* |
| * Check the 'spellsuggest' option. Return FAIL if it's wrong. |
| * Sets "sps_flags" and "sps_limit". |
| */ |
| int |
| spell_check_sps(void) |
| { |
| char_u *p; |
| char_u *s; |
| char_u buf[MAXPATHL]; |
| int f; |
| |
| sps_flags = 0; |
| sps_limit = 9999; |
| |
| for (p = p_sps; *p != NUL; ) |
| { |
| copy_option_part(&p, buf, MAXPATHL, ","); |
| |
| f = 0; |
| if (VIM_ISDIGIT(*buf)) |
| { |
| s = buf; |
| sps_limit = getdigits(&s); |
| if (*s != NUL && !VIM_ISDIGIT(*s)) |
| f = -1; |
| } |
| else if (STRCMP(buf, "best") == 0) |
| f = SPS_BEST; |
| else if (STRCMP(buf, "fast") == 0) |
| f = SPS_FAST; |
| else if (STRCMP(buf, "double") == 0) |
| f = SPS_DOUBLE; |
| else if (STRNCMP(buf, "expr:", 5) != 0 |
| && STRNCMP(buf, "file:", 5) != 0) |
| f = -1; |
| |
| if (f == -1 || (sps_flags != 0 && f != 0)) |
| { |
| sps_flags = SPS_BEST; |
| sps_limit = 9999; |
| return FAIL; |
| } |
| if (f != 0) |
| sps_flags = f; |
| } |
| |
| if (sps_flags == 0) |
| sps_flags = SPS_BEST; |
| |
| return OK; |
| } |
| |
| /* |
| * "z=": Find badly spelled word under or after the cursor. |
| * Give suggestions for the properly spelled word. |
| * In Visual mode use the highlighted word as the bad word. |
| * When "count" is non-zero use that suggestion. |
| */ |
| void |
| spell_suggest(int count) |
| { |
| char_u *line; |
| pos_T prev_cursor = curwin->w_cursor; |
| char_u wcopy[MAXWLEN + 2]; |
| char_u *p; |
| int i; |
| int c; |
| suginfo_T sug; |
| suggest_T *stp; |
| int mouse_used; |
| int need_cap; |
| int limit; |
| int selected = count; |
| int badlen = 0; |
| int msg_scroll_save = msg_scroll; |
| |
| if (no_spell_checking(curwin)) |
| return; |
| |
| if (VIsual_active) |
| { |
| /* Use the Visually selected text as the bad word. But reject |
| * a multi-line selection. */ |
| if (curwin->w_cursor.lnum != VIsual.lnum) |
| { |
| vim_beep(BO_SPELL); |
| return; |
| } |
| badlen = (int)curwin->w_cursor.col - (int)VIsual.col; |
| if (badlen < 0) |
| badlen = -badlen; |
| else |
| curwin->w_cursor.col = VIsual.col; |
| ++badlen; |
| end_visual_mode(); |
| } |
| /* Find the start of the badly spelled word. */ |
| else if (spell_move_to(curwin, FORWARD, TRUE, TRUE, NULL) == 0 |
| || curwin->w_cursor.col > prev_cursor.col) |
| { |
| /* No bad word or it starts after the cursor: use the word under the |
| * cursor. */ |
| curwin->w_cursor = prev_cursor; |
| line = ml_get_curline(); |
| p = line + curwin->w_cursor.col; |
| /* Backup to before start of word. */ |
| while (p > line && spell_iswordp_nmw(p, curwin)) |
| mb_ptr_back(line, p); |
| /* Forward to start of word. */ |
| while (*p != NUL && !spell_iswordp_nmw(p, curwin)) |
| mb_ptr_adv(p); |
| |
| if (!spell_iswordp_nmw(p, curwin)) /* No word found. */ |
| { |
| beep_flush(); |
| return; |
| } |
| curwin->w_cursor.col = (colnr_T)(p - line); |
| } |
| |
| /* Get the word and its length. */ |
| |
| /* Figure out if the word should be capitalised. */ |
| need_cap = check_need_cap(curwin->w_cursor.lnum, curwin->w_cursor.col); |
| |
| /* Make a copy of current line since autocommands may free the line. */ |
| line = vim_strsave(ml_get_curline()); |
| if (line == NULL) |
| goto skip; |
| |
| /* Get the list of suggestions. Limit to 'lines' - 2 or the number in |
| * 'spellsuggest', whatever is smaller. */ |
| if (sps_limit > (int)Rows - 2) |
| limit = (int)Rows - 2; |
| else |
| limit = sps_limit; |
| spell_find_suggest(line + curwin->w_cursor.col, badlen, &sug, limit, |
| TRUE, need_cap, TRUE); |
| |
| if (sug.su_ga.ga_len == 0) |
| MSG(_("Sorry, no suggestions")); |
| else if (count > 0) |
| { |
| if (count > sug.su_ga.ga_len) |
| smsg((char_u *)_("Sorry, only %ld suggestions"), |
| (long)sug.su_ga.ga_len); |
| } |
| else |
| { |
| vim_free(repl_from); |
| repl_from = NULL; |
| vim_free(repl_to); |
| repl_to = NULL; |
| |
| #ifdef FEAT_RIGHTLEFT |
| /* When 'rightleft' is set the list is drawn right-left. */ |
| cmdmsg_rl = curwin->w_p_rl; |
| if (cmdmsg_rl) |
| msg_col = Columns - 1; |
| #endif |
| |
| /* List the suggestions. */ |
| msg_start(); |
| msg_row = Rows - 1; /* for when 'cmdheight' > 1 */ |
| lines_left = Rows; /* avoid more prompt */ |
| vim_snprintf((char *)IObuff, IOSIZE, _("Change \"%.*s\" to:"), |
| sug.su_badlen, sug.su_badptr); |
| #ifdef FEAT_RIGHTLEFT |
| if (cmdmsg_rl && STRNCMP(IObuff, "Change", 6) == 0) |
| { |
| /* And now the rabbit from the high hat: Avoid showing the |
| * untranslated message rightleft. */ |
| vim_snprintf((char *)IObuff, IOSIZE, ":ot \"%.*s\" egnahC", |
| sug.su_badlen, sug.su_badptr); |
| } |
| #endif |
| msg_puts(IObuff); |
| msg_clr_eos(); |
| msg_putchar('\n'); |
| |
| msg_scroll = TRUE; |
| for (i = 0; i < sug.su_ga.ga_len; ++i) |
| { |
| stp = &SUG(sug.su_ga, i); |
| |
| /* The suggested word may replace only part of the bad word, add |
| * the not replaced part. */ |
| vim_strncpy(wcopy, stp->st_word, MAXWLEN); |
| if (sug.su_badlen > stp->st_orglen) |
| vim_strncpy(wcopy + stp->st_wordlen, |
| sug.su_badptr + stp->st_orglen, |
| sug.su_badlen - stp->st_orglen); |
| vim_snprintf((char *)IObuff, IOSIZE, "%2d", i + 1); |
| #ifdef FEAT_RIGHTLEFT |
| if (cmdmsg_rl) |
| rl_mirror(IObuff); |
| #endif |
| msg_puts(IObuff); |
| |
| vim_snprintf((char *)IObuff, IOSIZE, " \"%s\"", wcopy); |
| msg_puts(IObuff); |
| |
| /* The word may replace more than "su_badlen". */ |
| if (sug.su_badlen < stp->st_orglen) |
| { |
| vim_snprintf((char *)IObuff, IOSIZE, _(" < \"%.*s\""), |
| stp->st_orglen, sug.su_badptr); |
| msg_puts(IObuff); |
| } |
| |
| if (p_verbose > 0) |
| { |
| /* Add the score. */ |
| if (sps_flags & (SPS_DOUBLE | SPS_BEST)) |
| vim_snprintf((char *)IObuff, IOSIZE, " (%s%d - %d)", |
| stp->st_salscore ? "s " : "", |
| stp->st_score, stp->st_altscore); |
| else |
| vim_snprintf((char *)IObuff, IOSIZE, " (%d)", |
| stp->st_score); |
| #ifdef FEAT_RIGHTLEFT |
| if (cmdmsg_rl) |
| /* Mirror the numbers, but keep the leading space. */ |
| rl_mirror(IObuff + 1); |
| #endif |
| msg_advance(30); |
| msg_puts(IObuff); |
| } |
| msg_putchar('\n'); |
| } |
| |
| #ifdef FEAT_RIGHTLEFT |
| cmdmsg_rl = FALSE; |
| msg_col = 0; |
| #endif |
| /* Ask for choice. */ |
| selected = prompt_for_number(&mouse_used); |
| if (mouse_used) |
| selected -= lines_left; |
| lines_left = Rows; /* avoid more prompt */ |
| /* don't delay for 'smd' in normal_cmd() */ |
| msg_scroll = msg_scroll_save; |
| } |
| |
| if (selected > 0 && selected <= sug.su_ga.ga_len && u_save_cursor() == OK) |
| { |
| /* Save the from and to text for :spellrepall. */ |
| stp = &SUG(sug.su_ga, selected - 1); |
| if (sug.su_badlen > stp->st_orglen) |
| { |
| /* Replacing less than "su_badlen", append the remainder to |
| * repl_to. */ |
| repl_from = vim_strnsave(sug.su_badptr, sug.su_badlen); |
| vim_snprintf((char *)IObuff, IOSIZE, "%s%.*s", stp->st_word, |
| sug.su_badlen - stp->st_orglen, |
| sug.su_badptr + stp->st_orglen); |
| repl_to = vim_strsave(IObuff); |
| } |
| else |
| { |
| /* Replacing su_badlen or more, use the whole word. */ |
| repl_from = vim_strnsave(sug.su_badptr, stp->st_orglen); |
| repl_to = vim_strsave(stp->st_word); |
| } |
| |
| /* Replace the word. */ |
| p = alloc((unsigned)STRLEN(line) - stp->st_orglen |
| + stp->st_wordlen + 1); |
| if (p != NULL) |
| { |
| c = (int)(sug.su_badptr - line); |
| mch_memmove(p, line, c); |
| STRCPY(p + c, stp->st_word); |
| STRCAT(p, sug.su_badptr + stp->st_orglen); |
| ml_replace(curwin->w_cursor.lnum, p, FALSE); |
| curwin->w_cursor.col = c; |
| |
| /* For redo we use a change-word command. */ |
| ResetRedobuff(); |
| AppendToRedobuff((char_u *)"ciw"); |
| AppendToRedobuffLit(p + c, |
| stp->st_wordlen + sug.su_badlen - stp->st_orglen); |
| AppendCharToRedobuff(ESC); |
| |
| /* After this "p" may be invalid. */ |
| changed_bytes(curwin->w_cursor.lnum, c); |
| } |
| } |
| else |
| curwin->w_cursor = prev_cursor; |
| |
| spell_find_cleanup(&sug); |
| skip: |
| vim_free(line); |
| } |
| |
| /* |
| * Check if the word at line "lnum" column "col" is required to start with a |
| * capital. This uses 'spellcapcheck' of the current buffer. |
| */ |
| static int |
| check_need_cap(linenr_T lnum, colnr_T col) |
| { |
| int need_cap = FALSE; |
| char_u *line; |
| char_u *line_copy = NULL; |
| char_u *p; |
| colnr_T endcol; |
| regmatch_T regmatch; |
| |
| if (curwin->w_s->b_cap_prog == NULL) |
| return FALSE; |
| |
| line = ml_get_curline(); |
| endcol = 0; |
| if ((int)(skipwhite(line) - line) >= (int)col) |
| { |
| /* At start of line, check if previous line is empty or sentence |
| * ends there. */ |
| if (lnum == 1) |
| need_cap = TRUE; |
| else |
| { |
| line = ml_get(lnum - 1); |
| if (*skipwhite(line) == NUL) |
| need_cap = TRUE; |
| else |
| { |
| /* Append a space in place of the line break. */ |
| line_copy = concat_str(line, (char_u *)" "); |
| line = line_copy; |
| endcol = (colnr_T)STRLEN(line); |
| } |
| } |
| } |
| else |
| endcol = col; |
| |
| if (endcol > 0) |
| { |
| /* Check if sentence ends before the bad word. */ |
| regmatch.regprog = curwin->w_s->b_cap_prog; |
| regmatch.rm_ic = FALSE; |
| p = line + endcol; |
| for (;;) |
| { |
| mb_ptr_back(line, p); |
| if (p == line || spell_iswordp_nmw(p, curwin)) |
| break; |
| if (vim_regexec(®match, p, 0) |
| && regmatch.endp[0] == line + endcol) |
| { |
| need_cap = TRUE; |
| break; |
| } |
| } |
| curwin->w_s->b_cap_prog = regmatch.regprog; |
| } |
| |
| vim_free(line_copy); |
| |
| return need_cap; |
| } |
| |
| |
| /* |
| * ":spellrepall" |
| */ |
| void |
| ex_spellrepall(exarg_T *eap UNUSED) |
| { |
| pos_T pos = curwin->w_cursor; |
| char_u *frompat; |
| int addlen; |
| char_u *line; |
| char_u *p; |
| int save_ws = p_ws; |
| linenr_T prev_lnum = 0; |
| |
| if (repl_from == NULL || repl_to == NULL) |
| { |
| EMSG(_("E752: No previous spell replacement")); |
| return; |
| } |
| addlen = (int)(STRLEN(repl_to) - STRLEN(repl_from)); |
| |
| frompat = alloc((unsigned)STRLEN(repl_from) + 7); |
| if (frompat == NULL) |
| return; |
| sprintf((char *)frompat, "\\V\\<%s\\>", repl_from); |
| p_ws = FALSE; |
| |
| sub_nsubs = 0; |
| sub_nlines = 0; |
| curwin->w_cursor.lnum = 0; |
| while (!got_int) |
| { |
| if (do_search(NULL, '/', frompat, 1L, SEARCH_KEEP, NULL) == 0 |
| || u_save_cursor() == FAIL) |
| break; |
| |
| /* Only replace when the right word isn't there yet. This happens |
| * when changing "etc" to "etc.". */ |
| line = ml_get_curline(); |
| if (addlen <= 0 || STRNCMP(line + curwin->w_cursor.col, |
| repl_to, STRLEN(repl_to)) != 0) |
| { |
| p = alloc((unsigned)STRLEN(line) + addlen + 1); |
| if (p == NULL) |
| break; |
| mch_memmove(p, line, curwin->w_cursor.col); |
| STRCPY(p + curwin->w_cursor.col, repl_to); |
| STRCAT(p, line + curwin->w_cursor.col + STRLEN(repl_from)); |
| ml_replace(curwin->w_cursor.lnum, p, FALSE); |
| changed_bytes(curwin->w_cursor.lnum, curwin->w_cursor.col); |
| |
| if (curwin->w_cursor.lnum != prev_lnum) |
| { |
| ++sub_nlines; |
| prev_lnum = curwin->w_cursor.lnum; |
| } |
| ++sub_nsubs; |
| } |
| curwin->w_cursor.col += (colnr_T)STRLEN(repl_to); |
| } |
| |
| p_ws = save_ws; |
| curwin->w_cursor = pos; |
| vim_free(frompat); |
| |
| if (sub_nsubs == 0) |
| EMSG2(_("E753: Not found: %s"), repl_from); |
| else |
| do_sub_msg(FALSE); |
| } |
| |
| /* |
| * Find spell suggestions for "word". Return them in the growarray "*gap" as |
| * a list of allocated strings. |
| */ |
| void |
| spell_suggest_list( |
| garray_T *gap, |
| char_u *word, |
| int maxcount, /* maximum nr of suggestions */ |
| int need_cap, /* 'spellcapcheck' matched */ |
| int interactive) |
| { |
| suginfo_T sug; |
| int i; |
| suggest_T *stp; |
| char_u *wcopy; |
| |
| spell_find_suggest(word, 0, &sug, maxcount, FALSE, need_cap, interactive); |
| |
| /* Make room in "gap". */ |
| ga_init2(gap, sizeof(char_u *), sug.su_ga.ga_len + 1); |
| if (ga_grow(gap, sug.su_ga.ga_len) == OK) |
| { |
| for (i = 0; i < sug.su_ga.ga_len; ++i) |
| { |
| stp = &SUG(sug.su_ga, i); |
| |
| /* The suggested word may replace only part of "word", add the not |
| * replaced part. */ |
| wcopy = alloc(stp->st_wordlen |
| + (unsigned)STRLEN(sug.su_badptr + stp->st_orglen) + 1); |
| if (wcopy == NULL) |
| break; |
| STRCPY(wcopy, stp->st_word); |
| STRCPY(wcopy + stp->st_wordlen, sug.su_badptr + stp->st_orglen); |
| ((char_u **)gap->ga_data)[gap->ga_len++] = wcopy; |
| } |
| } |
| |
| spell_find_cleanup(&sug); |
| } |
| |
| /* |
| * Find spell suggestions for the word at the start of "badptr". |
| * Return the suggestions in "su->su_ga". |
| * The maximum number of suggestions is "maxcount". |
| * Note: does use info for the current window. |
| * This is based on the mechanisms of Aspell, but completely reimplemented. |
| */ |
| static void |
| spell_find_suggest( |
| char_u *badptr, |
| int badlen, /* length of bad word or 0 if unknown */ |
| suginfo_T *su, |
| int maxcount, |
| int banbadword, /* don't include badword in suggestions */ |
| int need_cap, /* word should start with capital */ |
| int interactive) |
| { |
| hlf_T attr = HLF_COUNT; |
| char_u buf[MAXPATHL]; |
| char_u *p; |
| int do_combine = FALSE; |
| char_u *sps_copy; |
| #ifdef FEAT_EVAL |
| static int expr_busy = FALSE; |
| #endif |
| int c; |
| int i; |
| langp_T *lp; |
| |
| /* |
| * Set the info in "*su". |
| */ |
| vim_memset(su, 0, sizeof(suginfo_T)); |
| ga_init2(&su->su_ga, (int)sizeof(suggest_T), 10); |
| ga_init2(&su->su_sga, (int)sizeof(suggest_T), 10); |
| if (*badptr == NUL) |
| return; |
| hash_init(&su->su_banned); |
| |
| su->su_badptr = badptr; |
| if (badlen != 0) |
| su->su_badlen = badlen; |
| else |
| su->su_badlen = spell_check(curwin, su->su_badptr, &attr, NULL, FALSE); |
| su->su_maxcount = maxcount; |
| su->su_maxscore = SCORE_MAXINIT; |
| |
| if (su->su_badlen >= MAXWLEN) |
| su->su_badlen = MAXWLEN - 1; /* just in case */ |
| vim_strncpy(su->su_badword, su->su_badptr, su->su_badlen); |
| (void)spell_casefold(su->su_badptr, su->su_badlen, |
| su->su_fbadword, MAXWLEN); |
| /* get caps flags for bad word */ |
| su->su_badflags = badword_captype(su->su_badptr, |
| su->su_badptr + su->su_badlen); |
| if (need_cap) |
| su->su_badflags |= WF_ONECAP; |
| |
| /* Find the default language for sound folding. We simply use the first |
| * one in 'spelllang' that supports sound folding. That's good for when |
| * using multiple files for one language, it's not that bad when mixing |
| * languages (e.g., "pl,en"). */ |
| for (i = 0; i < curbuf->b_s.b_langp.ga_len; ++i) |
| { |
| lp = LANGP_ENTRY(curbuf->b_s.b_langp, i); |
| if (lp->lp_sallang != NULL) |
| { |
| su->su_sallang = lp->lp_sallang; |
| break; |
| } |
| } |
| |
| /* Soundfold the bad word with the default sound folding, so that we don't |
| * have to do this many times. */ |
| if (su->su_sallang != NULL) |
| spell_soundfold(su->su_sallang, su->su_fbadword, TRUE, |
| su->su_sal_badword); |
| |
| /* If the word is not capitalised and spell_check() doesn't consider the |
| * word to be bad then it might need to be capitalised. Add a suggestion |
| * for that. */ |
| c = PTR2CHAR(su->su_badptr); |
| if (!SPELL_ISUPPER(c) && attr == HLF_COUNT) |
| { |
| make_case_word(su->su_badword, buf, WF_ONECAP); |
| add_suggestion(su, &su->su_ga, buf, su->su_badlen, SCORE_ICASE, |
| 0, TRUE, su->su_sallang, FALSE); |
| } |
| |
| /* Ban the bad word itself. It may appear in another region. */ |
| if (banbadword) |
| add_banned(su, su->su_badword); |
| |
| /* Make a copy of 'spellsuggest', because the expression may change it. */ |
| sps_copy = vim_strsave(p_sps); |
| if (sps_copy == NULL) |
| return; |
| |
| /* Loop over the items in 'spellsuggest'. */ |
| for (p = sps_copy; *p != NUL; ) |
| { |
| copy_option_part(&p, buf, MAXPATHL, ","); |
| |
| if (STRNCMP(buf, "expr:", 5) == 0) |
| { |
| #ifdef FEAT_EVAL |
| /* Evaluate an expression. Skip this when called recursively, |
| * when using spellsuggest() in the expression. */ |
| if (!expr_busy) |
| { |
| expr_busy = TRUE; |
| spell_suggest_expr(su, buf + 5); |
| expr_busy = FALSE; |
| } |
| #endif |
| } |
| else if (STRNCMP(buf, "file:", 5) == 0) |
| /* Use list of suggestions in a file. */ |
| spell_suggest_file(su, buf + 5); |
| else |
| { |
| /* Use internal method. */ |
| spell_suggest_intern(su, interactive); |
| if (sps_flags & SPS_DOUBLE) |
| do_combine = TRUE; |
| } |
| } |
| |
| vim_free(sps_copy); |
| |
| if (do_combine) |
| /* Combine the two list of suggestions. This must be done last, |
| * because sorting changes the order again. */ |
| score_combine(su); |
| } |
| |
| #ifdef FEAT_EVAL |
| /* |
| * Find suggestions by evaluating expression "expr". |
| */ |
| static void |
| spell_suggest_expr(suginfo_T *su, char_u *expr) |
| { |
| list_T *list; |
| listitem_T *li; |
| int score; |
| char_u *p; |
| |
| /* The work is split up in a few parts to avoid having to export |
| * suginfo_T. |
| * First evaluate the expression and get the resulting list. */ |
| list = eval_spell_expr(su->su_badword, expr); |
| if (list != NULL) |
| { |
| /* Loop over the items in the list. */ |
| for (li = list->lv_first; li != NULL; li = li->li_next) |
| if (li->li_tv.v_type == VAR_LIST) |
| { |
| /* Get the word and the score from the items. */ |
| score = get_spellword(li->li_tv.vval.v_list, &p); |
| if (score >= 0 && score <= su->su_maxscore) |
| add_suggestion(su, &su->su_ga, p, su->su_badlen, |
| score, 0, TRUE, su->su_sallang, FALSE); |
| } |
| list_unref(list); |
| } |
| |
| /* Remove bogus suggestions, sort and truncate at "maxcount". */ |
| check_suggestions(su, &su->su_ga); |
| (void)cleanup_suggestions(&su->su_ga, su->su_maxscore, su->su_maxcount); |
| } |
| #endif |
| |
| /* |
| * Find suggestions in file "fname". Used for "file:" in 'spellsuggest'. |
| */ |
| static void |
| spell_suggest_file(suginfo_T *su, char_u *fname) |
| { |
| FILE *fd; |
| char_u line[MAXWLEN * 2]; |
| char_u *p; |
| int len; |
| char_u cword[MAXWLEN]; |
| |
| /* Open the file. */ |
| fd = mch_fopen((char *)fname, "r"); |
| if (fd == NULL) |
| { |
| EMSG2(_(e_notopen), fname); |
| return; |
| } |
| |
| /* Read it line by line. */ |
| while (!vim_fgets(line, MAXWLEN * 2, fd) && !got_int) |
| { |
| line_breakcheck(); |
| |
| p = vim_strchr(line, '/'); |
| if (p == NULL) |
| continue; /* No Tab found, just skip the line. */ |
| *p++ = NUL; |
| if (STRICMP(su->su_badword, line) == 0) |
| { |
| /* Match! Isolate the good word, until CR or NL. */ |
| for (len = 0; p[len] >= ' '; ++len) |
| ; |
| p[len] = NUL; |
| |
| /* If the suggestion doesn't have specific case duplicate the case |
| * of the bad word. */ |
| if (captype(p, NULL) == 0) |
| { |
| make_case_word(p, cword, su->su_badflags); |
| p = cword; |
| } |
| |
| add_suggestion(su, &su->su_ga, p, su->su_badlen, |
| SCORE_FILE, 0, TRUE, su->su_sallang, FALSE); |
| } |
| } |
| |
| fclose(fd); |
| |
| /* Remove bogus suggestions, sort and truncate at "maxcount". */ |
| check_suggestions(su, &su->su_ga); |
| (void)cleanup_suggestions(&su->su_ga, su->su_maxscore, su->su_maxcount); |
| } |
| |
| /* |
| * Find suggestions for the internal method indicated by "sps_flags". |
| */ |
| static void |
| spell_suggest_intern(suginfo_T *su, int interactive) |
| { |
| /* |
| * Load the .sug file(s) that are available and not done yet. |
| */ |
| suggest_load_files(); |
| |
| /* |
| * 1. Try special cases, such as repeating a word: "the the" -> "the". |
| * |
| * Set a maximum score to limit the combination of operations that is |
| * tried. |
| */ |
| suggest_try_special(su); |
| |
| /* |
| * 2. Try inserting/deleting/swapping/changing a letter, use REP entries |
| * from the .aff file and inserting a space (split the word). |
| */ |
| suggest_try_change(su); |
| |
| /* For the resulting top-scorers compute the sound-a-like score. */ |
| if (sps_flags & SPS_DOUBLE) |
| score_comp_sal(su); |
| |
| /* |
| * 3. Try finding sound-a-like words. |
| */ |
| if ((sps_flags & SPS_FAST) == 0) |
| { |
| if (sps_flags & SPS_BEST) |
| /* Adjust the word score for the suggestions found so far for how |
| * they sounds like. */ |
| rescore_suggestions(su); |
| |
| /* |
| * While going through the soundfold tree "su_maxscore" is the score |
| * for the soundfold word, limits the changes that are being tried, |
| * and "su_sfmaxscore" the rescored score, which is set by |
| * cleanup_suggestions(). |
| * First find words with a small edit distance, because this is much |
| * faster and often already finds the top-N suggestions. If we didn't |
| * find many suggestions try again with a higher edit distance. |
| * "sl_sounddone" is used to avoid doing the same word twice. |
| */ |
| suggest_try_soundalike_prep(); |
| su->su_maxscore = SCORE_SFMAX1; |
| su->su_sfmaxscore = SCORE_MAXINIT * 3; |
| suggest_try_soundalike(su); |
| if (su->su_ga.ga_len < SUG_CLEAN_COUNT(su)) |
| { |
| /* We didn't find enough matches, try again, allowing more |
| * changes to the soundfold word. */ |
| su->su_maxscore = SCORE_SFMAX2; |
| suggest_try_soundalike(su); |
| if (su->su_ga.ga_len < SUG_CLEAN_COUNT(su)) |
| { |
| /* Still didn't find enough matches, try again, allowing even |
| * more changes to the soundfold word. */ |
| su->su_maxscore = SCORE_SFMAX3; |
| suggest_try_soundalike(su); |
| } |
| } |
| su->su_maxscore = su->su_sfmaxscore; |
| suggest_try_soundalike_finish(); |
| } |
| |
| /* When CTRL-C was hit while searching do show the results. Only clear |
| * got_int when using a command, not for spellsuggest(). */ |
| ui_breakcheck(); |
| if (interactive && got_int) |
| { |
| (void)vgetc(); |
| got_int = FALSE; |
| } |
| |
| if ((sps_flags & SPS_DOUBLE) == 0 && su->su_ga.ga_len != 0) |
| { |
| if (sps_flags & SPS_BEST) |
| /* Adjust the word score for how it sounds like. */ |
| rescore_suggestions(su); |
| |
| /* Remove bogus suggestions, sort and truncate at "maxcount". */ |
| check_suggestions(su, &su->su_ga); |
| (void)cleanup_suggestions(&su->su_ga, su->su_maxscore, su->su_maxcount); |
| } |
| } |
| |
| /* |
| * Free the info put in "*su" by spell_find_suggest(). |
| */ |
| static void |
| spell_find_cleanup(suginfo_T *su) |
| { |
| int i; |
| |
| /* Free the suggestions. */ |
| for (i = 0; i < su->su_ga.ga_len; ++i) |
| vim_free(SUG(su->su_ga, i).st_word); |
| ga_clear(&su->su_ga); |
| for (i = 0; i < su->su_sga.ga_len; ++i) |
| vim_free(SUG(su->su_sga, i).st_word); |
| ga_clear(&su->su_sga); |
| |
| /* Free the banned words. */ |
| hash_clear_all(&su->su_banned, 0); |
| } |
| |
| /* |
| * Make a copy of "word", with the first letter upper or lower cased, to |
| * "wcopy[MAXWLEN]". "word" must not be empty. |
| * The result is NUL terminated. |
| */ |
| void |
| onecap_copy( |
| char_u *word, |
| char_u *wcopy, |
| int upper) /* TRUE: first letter made upper case */ |
| { |
| char_u *p; |
| int c; |
| int l; |
| |
| p = word; |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| c = mb_cptr2char_adv(&p); |
| else |
| #endif |
| c = *p++; |
| if (upper) |
| c = SPELL_TOUPPER(c); |
| else |
| c = SPELL_TOFOLD(c); |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| l = mb_char2bytes(c, wcopy); |
| else |
| #endif |
| { |
| l = 1; |
| wcopy[0] = c; |
| } |
| vim_strncpy(wcopy + l, p, MAXWLEN - l - 1); |
| } |
| |
| /* |
| * Make a copy of "word" with all the letters upper cased into |
| * "wcopy[MAXWLEN]". The result is NUL terminated. |
| */ |
| static void |
| allcap_copy(char_u *word, char_u *wcopy) |
| { |
| char_u *s; |
| char_u *d; |
| int c; |
| |
| d = wcopy; |
| for (s = word; *s != NUL; ) |
| { |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| c = mb_cptr2char_adv(&s); |
| else |
| #endif |
| c = *s++; |
| |
| #ifdef FEAT_MBYTE |
| /* We only change 0xdf to SS when we are certain latin1 is used. It |
| * would cause weird errors in other 8-bit encodings. */ |
| if (enc_latin1like && c == 0xdf) |
| { |
| c = 'S'; |
| if (d - wcopy >= MAXWLEN - 1) |
| break; |
| *d++ = c; |
| } |
| else |
| #endif |
| c = SPELL_TOUPPER(c); |
| |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| if (d - wcopy >= MAXWLEN - MB_MAXBYTES) |
| break; |
| d += mb_char2bytes(c, d); |
| } |
| else |
| #endif |
| { |
| if (d - wcopy >= MAXWLEN - 1) |
| break; |
| *d++ = c; |
| } |
| } |
| *d = NUL; |
| } |
| |
| /* |
| * Try finding suggestions by recognizing specific situations. |
| */ |
| static void |
| suggest_try_special(suginfo_T *su) |
| { |
| char_u *p; |
| size_t len; |
| int c; |
| char_u word[MAXWLEN]; |
| |
| /* |
| * Recognize a word that is repeated: "the the". |
| */ |
| p = skiptowhite(su->su_fbadword); |
| len = p - su->su_fbadword; |
| p = skipwhite(p); |
| if (STRLEN(p) == len && STRNCMP(su->su_fbadword, p, len) == 0) |
| { |
| /* Include badflags: if the badword is onecap or allcap |
| * use that for the goodword too: "The the" -> "The". */ |
| c = su->su_fbadword[len]; |
| su->su_fbadword[len] = NUL; |
| make_case_word(su->su_fbadword, word, su->su_badflags); |
| su->su_fbadword[len] = c; |
| |
| /* Give a soundalike score of 0, compute the score as if deleting one |
| * character. */ |
| add_suggestion(su, &su->su_ga, word, su->su_badlen, |
| RESCORE(SCORE_REP, 0), 0, TRUE, su->su_sallang, FALSE); |
| } |
| } |
| |
| /* |
| * Change the 0 to 1 to measure how much time is spent in each state. |
| * Output is dumped in "suggestprof". |
| */ |
| #if 0 |
| # define SUGGEST_PROFILE |
| proftime_T current; |
| proftime_T total; |
| proftime_T times[STATE_FINAL + 1]; |
| long counts[STATE_FINAL + 1]; |
| |
| static void |
| prof_init(void) |
| { |
| for (int i = 0; i <= STATE_FINAL; ++i) |
| { |
| profile_zero(×[i]); |
| counts[i] = 0; |
| } |
| profile_start(¤t); |
| profile_start(&total); |
| } |
| |
| /* call before changing state */ |
| static void |
| prof_store(state_T state) |
| { |
| profile_end(¤t); |
| profile_add(×[state], ¤t); |
| ++counts[state]; |
| profile_start(¤t); |
| } |
| # define PROF_STORE(state) prof_store(state); |
| |
| static void |
| prof_report(char *name) |
| { |
| FILE *fd = fopen("suggestprof", "a"); |
| |
| profile_end(&total); |
| fprintf(fd, "-----------------------\n"); |
| fprintf(fd, "%s: %s\n", name, profile_msg(&total)); |
| for (int i = 0; i <= STATE_FINAL; ++i) |
| fprintf(fd, "%d: %s (%ld)\n", i, profile_msg(×[i]), counts[i]); |
| fclose(fd); |
| } |
| #else |
| # define PROF_STORE(state) |
| #endif |
| |
| /* |
| * Try finding suggestions by adding/removing/swapping letters. |
| */ |
| static void |
| suggest_try_change(suginfo_T *su) |
| { |
| char_u fword[MAXWLEN]; /* copy of the bad word, case-folded */ |
| int n; |
| char_u *p; |
| int lpi; |
| langp_T *lp; |
| |
| /* We make a copy of the case-folded bad word, so that we can modify it |
| * to find matches (esp. REP items). Append some more text, changing |
| * chars after the bad word may help. */ |
| STRCPY(fword, su->su_fbadword); |
| n = (int)STRLEN(fword); |
| p = su->su_badptr + su->su_badlen; |
| (void)spell_casefold(p, (int)STRLEN(p), fword + n, MAXWLEN - n); |
| |
| for (lpi = 0; lpi < curwin->w_s->b_langp.ga_len; ++lpi) |
| { |
| lp = LANGP_ENTRY(curwin->w_s->b_langp, lpi); |
| |
| /* If reloading a spell file fails it's still in the list but |
| * everything has been cleared. */ |
| if (lp->lp_slang->sl_fbyts == NULL) |
| continue; |
| |
| /* Try it for this language. Will add possible suggestions. */ |
| #ifdef SUGGEST_PROFILE |
| prof_init(); |
| #endif |
| suggest_trie_walk(su, lp, fword, FALSE); |
| #ifdef SUGGEST_PROFILE |
| prof_report("try_change"); |
| #endif |
| } |
| } |
| |
| /* Check the maximum score, if we go over it we won't try this change. */ |
| #define TRY_DEEPER(su, stack, depth, add) \ |
| (stack[depth].ts_score + (add) < su->su_maxscore) |
| |
| /* |
| * Try finding suggestions by adding/removing/swapping letters. |
| * |
| * This uses a state machine. At each node in the tree we try various |
| * operations. When trying if an operation works "depth" is increased and the |
| * stack[] is used to store info. This allows combinations, thus insert one |
| * character, replace one and delete another. The number of changes is |
| * limited by su->su_maxscore. |
| * |
| * After implementing this I noticed an article by Kemal Oflazer that |
| * describes something similar: "Error-tolerant Finite State Recognition with |
| * Applications to Morphological Analysis and Spelling Correction" (1996). |
| * The implementation in the article is simplified and requires a stack of |
| * unknown depth. The implementation here only needs a stack depth equal to |
| * the length of the word. |
| * |
| * This is also used for the sound-folded word, "soundfold" is TRUE then. |
| * The mechanism is the same, but we find a match with a sound-folded word |
| * that comes from one or more original words. Each of these words may be |
| * added, this is done by add_sound_suggest(). |
| * Don't use: |
| * the prefix tree or the keep-case tree |
| * "su->su_badlen" |
| * anything to do with upper and lower case |
| * anything to do with word or non-word characters ("spell_iswordp()") |
| * banned words |
| * word flags (rare, region, compounding) |
| * word splitting for now |
| * "similar_chars()" |
| * use "slang->sl_repsal" instead of "lp->lp_replang->sl_rep" |
| */ |
| static void |
| suggest_trie_walk( |
| suginfo_T *su, |
| langp_T *lp, |
| char_u *fword, |
| int soundfold) |
| { |
| char_u tword[MAXWLEN]; /* good word collected so far */ |
| trystate_T stack[MAXWLEN]; |
| char_u preword[MAXWLEN * 3]; /* word found with proper case; |
| * concatenation of prefix compound |
| * words and split word. NUL terminated |
| * when going deeper but not when coming |
| * back. */ |
| char_u compflags[MAXWLEN]; /* compound flags, one for each word */ |
| trystate_T *sp; |
| int newscore; |
| int score; |
| char_u *byts, *fbyts, *pbyts; |
| idx_T *idxs, *fidxs, *pidxs; |
| int depth; |
| int c, c2, c3; |
| int n = 0; |
| int flags; |
| garray_T *gap; |
| idx_T arridx; |
| int len; |
| char_u *p; |
| fromto_T *ftp; |
| int fl = 0, tl; |
| int repextra = 0; /* extra bytes in fword[] from REP item */ |
| slang_T *slang = lp->lp_slang; |
| int fword_ends; |
| int goodword_ends; |
| #ifdef DEBUG_TRIEWALK |
| /* Stores the name of the change made at each level. */ |
| char_u changename[MAXWLEN][80]; |
| #endif |
| int breakcheckcount = 1000; |
| int compound_ok; |
| |
| /* |
| * Go through the whole case-fold tree, try changes at each node. |
| * "tword[]" contains the word collected from nodes in the tree. |
| * "fword[]" the word we are trying to match with (initially the bad |
| * word). |
| */ |
| depth = 0; |
| sp = &stack[0]; |
| vim_memset(sp, 0, sizeof(trystate_T)); |
| sp->ts_curi = 1; |
| |
| if (soundfold) |
| { |
| /* Going through the soundfold tree. */ |
| byts = fbyts = slang->sl_sbyts; |
| idxs = fidxs = slang->sl_sidxs; |
| pbyts = NULL; |
| pidxs = NULL; |
| sp->ts_prefixdepth = PFD_NOPREFIX; |
| sp->ts_state = STATE_START; |
| } |
| else |
| { |
| /* |
| * When there are postponed prefixes we need to use these first. At |
| * the end of the prefix we continue in the case-fold tree. |
| */ |
| fbyts = slang->sl_fbyts; |
| fidxs = slang->sl_fidxs; |
| pbyts = slang->sl_pbyts; |
| pidxs = slang->sl_pidxs; |
| if (pbyts != NULL) |
| { |
| byts = pbyts; |
| idxs = pidxs; |
| sp->ts_prefixdepth = PFD_PREFIXTREE; |
| sp->ts_state = STATE_NOPREFIX; /* try without prefix first */ |
| } |
| else |
| { |
| byts = fbyts; |
| idxs = fidxs; |
| sp->ts_prefixdepth = PFD_NOPREFIX; |
| sp->ts_state = STATE_START; |
| } |
| } |
| |
| /* |
| * Loop to find all suggestions. At each round we either: |
| * - For the current state try one operation, advance "ts_curi", |
| * increase "depth". |
| * - When a state is done go to the next, set "ts_state". |
| * - When all states are tried decrease "depth". |
| */ |
| while (depth >= 0 && !got_int) |
| { |
| sp = &stack[depth]; |
| switch (sp->ts_state) |
| { |
| case STATE_START: |
| case STATE_NOPREFIX: |
| /* |
| * Start of node: Deal with NUL bytes, which means |
| * tword[] may end here. |
| */ |
| arridx = sp->ts_arridx; /* current node in the tree */ |
| len = byts[arridx]; /* bytes in this node */ |
| arridx += sp->ts_curi; /* index of current byte */ |
| |
| if (sp->ts_prefixdepth == PFD_PREFIXTREE) |
| { |
| /* Skip over the NUL bytes, we use them later. */ |
| for (n = 0; n < len && byts[arridx + n] == 0; ++n) |
| ; |
| sp->ts_curi += n; |
| |
| /* Always past NUL bytes now. */ |
| n = (int)sp->ts_state; |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_ENDNUL; |
| sp->ts_save_badflags = su->su_badflags; |
| |
| /* At end of a prefix or at start of prefixtree: check for |
| * following word. */ |
| if (byts[arridx] == 0 || n == (int)STATE_NOPREFIX) |
| { |
| /* Set su->su_badflags to the caps type at this position. |
| * Use the caps type until here for the prefix itself. */ |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| n = nofold_len(fword, sp->ts_fidx, su->su_badptr); |
| else |
| #endif |
| n = sp->ts_fidx; |
| flags = badword_captype(su->su_badptr, su->su_badptr + n); |
| su->su_badflags = badword_captype(su->su_badptr + n, |
| su->su_badptr + su->su_badlen); |
| #ifdef DEBUG_TRIEWALK |
| sprintf(changename[depth], "prefix"); |
| #endif |
| go_deeper(stack, depth, 0); |
| ++depth; |
| sp = &stack[depth]; |
| sp->ts_prefixdepth = depth - 1; |
| byts = fbyts; |
| idxs = fidxs; |
| sp->ts_arridx = 0; |
| |
| /* Move the prefix to preword[] with the right case |
| * and make find_keepcap_word() works. */ |
| tword[sp->ts_twordlen] = NUL; |
| make_case_word(tword + sp->ts_splitoff, |
| preword + sp->ts_prewordlen, flags); |
| sp->ts_prewordlen = (char_u)STRLEN(preword); |
| sp->ts_splitoff = sp->ts_twordlen; |
| } |
| break; |
| } |
| |
| if (sp->ts_curi > len || byts[arridx] != 0) |
| { |
| /* Past bytes in node and/or past NUL bytes. */ |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_ENDNUL; |
| sp->ts_save_badflags = su->su_badflags; |
| break; |
| } |
| |
| /* |
| * End of word in tree. |
| */ |
| ++sp->ts_curi; /* eat one NUL byte */ |
| |
| flags = (int)idxs[arridx]; |
| |
| /* Skip words with the NOSUGGEST flag. */ |
| if (flags & WF_NOSUGGEST) |
| break; |
| |
| fword_ends = (fword[sp->ts_fidx] == NUL |
| || (soundfold |
| ? vim_iswhite(fword[sp->ts_fidx]) |
| : !spell_iswordp(fword + sp->ts_fidx, curwin))); |
| tword[sp->ts_twordlen] = NUL; |
| |
| if (sp->ts_prefixdepth <= PFD_NOTSPECIAL |
| && (sp->ts_flags & TSF_PREFIXOK) == 0) |
| { |
| /* There was a prefix before the word. Check that the prefix |
| * can be used with this word. */ |
| /* Count the length of the NULs in the prefix. If there are |
| * none this must be the first try without a prefix. */ |
| n = stack[sp->ts_prefixdepth].ts_arridx; |
| len = pbyts[n++]; |
| for (c = 0; c < len && pbyts[n + c] == 0; ++c) |
| ; |
| if (c > 0) |
| { |
| c = valid_word_prefix(c, n, flags, |
| tword + sp->ts_splitoff, slang, FALSE); |
| if (c == 0) |
| break; |
| |
| /* Use the WF_RARE flag for a rare prefix. */ |
| if (c & WF_RAREPFX) |
| flags |= WF_RARE; |
| |
| /* Tricky: when checking for both prefix and compounding |
| * we run into the prefix flag first. |
| * Remember that it's OK, so that we accept the prefix |
| * when arriving at a compound flag. */ |
| sp->ts_flags |= TSF_PREFIXOK; |
| } |
| } |
| |
| /* Check NEEDCOMPOUND: can't use word without compounding. Do try |
| * appending another compound word below. */ |
| if (sp->ts_complen == sp->ts_compsplit && fword_ends |
| && (flags & WF_NEEDCOMP)) |
| goodword_ends = FALSE; |
| else |
| goodword_ends = TRUE; |
| |
| p = NULL; |
| compound_ok = TRUE; |
| if (sp->ts_complen > sp->ts_compsplit) |
| { |
| if (slang->sl_nobreak) |
| { |
| /* There was a word before this word. When there was no |
| * change in this word (it was correct) add the first word |
| * as a suggestion. If this word was corrected too, we |
| * need to check if a correct word follows. */ |
| if (sp->ts_fidx - sp->ts_splitfidx |
| == sp->ts_twordlen - sp->ts_splitoff |
| && STRNCMP(fword + sp->ts_splitfidx, |
| tword + sp->ts_splitoff, |
| sp->ts_fidx - sp->ts_splitfidx) == 0) |
| { |
| preword[sp->ts_prewordlen] = NUL; |
| newscore = score_wordcount_adj(slang, sp->ts_score, |
| preword + sp->ts_prewordlen, |
| sp->ts_prewordlen > 0); |
| /* Add the suggestion if the score isn't too bad. */ |
| if (newscore <= su->su_maxscore) |
| add_suggestion(su, &su->su_ga, preword, |
| sp->ts_splitfidx - repextra, |
| newscore, 0, FALSE, |
| lp->lp_sallang, FALSE); |
| break; |
| } |
| } |
| else |
| { |
| /* There was a compound word before this word. If this |
| * word does not support compounding then give up |
| * (splitting is tried for the word without compound |
| * flag). */ |
| if (((unsigned)flags >> 24) == 0 |
| || sp->ts_twordlen - sp->ts_splitoff |
| < slang->sl_compminlen) |
| break; |
| #ifdef FEAT_MBYTE |
| /* For multi-byte chars check character length against |
| * COMPOUNDMIN. */ |
| if (has_mbyte |
| && slang->sl_compminlen > 0 |
| && mb_charlen(tword + sp->ts_splitoff) |
| < slang->sl_compminlen) |
| break; |
| #endif |
| |
| compflags[sp->ts_complen] = ((unsigned)flags >> 24); |
| compflags[sp->ts_complen + 1] = NUL; |
| vim_strncpy(preword + sp->ts_prewordlen, |
| tword + sp->ts_splitoff, |
| sp->ts_twordlen - sp->ts_splitoff); |
| |
| /* Verify CHECKCOMPOUNDPATTERN rules. */ |
| if (match_checkcompoundpattern(preword, sp->ts_prewordlen, |
| &slang->sl_comppat)) |
| compound_ok = FALSE; |
| |
| if (compound_ok) |
| { |
| p = preword; |
| while (*skiptowhite(p) != NUL) |
| p = skipwhite(skiptowhite(p)); |
| if (fword_ends && !can_compound(slang, p, |
| compflags + sp->ts_compsplit)) |
| /* Compound is not allowed. But it may still be |
| * possible if we add another (short) word. */ |
| compound_ok = FALSE; |
| } |
| |
| /* Get pointer to last char of previous word. */ |
| p = preword + sp->ts_prewordlen; |
| mb_ptr_back(preword, p); |
| } |
| } |
| |
| /* |
| * Form the word with proper case in preword. |
| * If there is a word from a previous split, append. |
| * For the soundfold tree don't change the case, simply append. |
| */ |
| if (soundfold) |
| STRCPY(preword + sp->ts_prewordlen, tword + sp->ts_splitoff); |
| else if (flags & WF_KEEPCAP) |
| /* Must find the word in the keep-case tree. */ |
| find_keepcap_word(slang, tword + sp->ts_splitoff, |
| preword + sp->ts_prewordlen); |
| else |
| { |
| /* Include badflags: If the badword is onecap or allcap |
| * use that for the goodword too. But if the badword is |
| * allcap and it's only one char long use onecap. */ |
| c = su->su_badflags; |
| if ((c & WF_ALLCAP) |
| #ifdef FEAT_MBYTE |
| && su->su_badlen == (*mb_ptr2len)(su->su_badptr) |
| #else |
| && su->su_badlen == 1 |
| #endif |
| ) |
| c = WF_ONECAP; |
| c |= flags; |
| |
| /* When appending a compound word after a word character don't |
| * use Onecap. */ |
| if (p != NULL && spell_iswordp_nmw(p, curwin)) |
| c &= ~WF_ONECAP; |
| make_case_word(tword + sp->ts_splitoff, |
| preword + sp->ts_prewordlen, c); |
| } |
| |
| if (!soundfold) |
| { |
| /* Don't use a banned word. It may appear again as a good |
| * word, thus remember it. */ |
| if (flags & WF_BANNED) |
| { |
| add_banned(su, preword + sp->ts_prewordlen); |
| break; |
| } |
| if ((sp->ts_complen == sp->ts_compsplit |
| && WAS_BANNED(su, preword + sp->ts_prewordlen)) |
| || WAS_BANNED(su, preword)) |
| { |
| if (slang->sl_compprog == NULL) |
| break; |
| /* the word so far was banned but we may try compounding */ |
| goodword_ends = FALSE; |
| } |
| } |
| |
| newscore = 0; |
| if (!soundfold) /* soundfold words don't have flags */ |
| { |
| if ((flags & WF_REGION) |
| && (((unsigned)flags >> 16) & lp->lp_region) == 0) |
| newscore += SCORE_REGION; |
| if (flags & WF_RARE) |
| newscore += SCORE_RARE; |
| |
| if (!spell_valid_case(su->su_badflags, |
| captype(preword + sp->ts_prewordlen, NULL))) |
| newscore += SCORE_ICASE; |
| } |
| |
| /* TODO: how about splitting in the soundfold tree? */ |
| if (fword_ends |
| && goodword_ends |
| && sp->ts_fidx >= sp->ts_fidxtry |
| && compound_ok) |
| { |
| /* The badword also ends: add suggestions. */ |
| #ifdef DEBUG_TRIEWALK |
| if (soundfold && STRCMP(preword, "smwrd") == 0) |
| { |
| int j; |
| |
| /* print the stack of changes that brought us here */ |
| smsg("------ %s -------", fword); |
| for (j = 0; j < depth; ++j) |
| smsg("%s", changename[j]); |
| } |
| #endif |
| if (soundfold) |
| { |
| /* For soundfolded words we need to find the original |
| * words, the edit distance and then add them. */ |
| add_sound_suggest(su, preword, sp->ts_score, lp); |
| } |
| else if (sp->ts_fidx > 0) |
| { |
| /* Give a penalty when changing non-word char to word |
| * char, e.g., "thes," -> "these". */ |
| p = fword + sp->ts_fidx; |
| mb_ptr_back(fword, p); |
| if (!spell_iswordp(p, curwin)) |
| { |
| p = preword + STRLEN(preword); |
| mb_ptr_back(preword, p); |
| if (spell_iswordp(p, curwin)) |
| newscore += SCORE_NONWORD; |
| } |
| |
| /* Give a bonus to words seen before. */ |
| score = score_wordcount_adj(slang, |
| sp->ts_score + newscore, |
| preword + sp->ts_prewordlen, |
| sp->ts_prewordlen > 0); |
| |
| /* Add the suggestion if the score isn't too bad. */ |
| if (score <= su->su_maxscore) |
| { |
| add_suggestion(su, &su->su_ga, preword, |
| sp->ts_fidx - repextra, |
| score, 0, FALSE, lp->lp_sallang, FALSE); |
| |
| if (su->su_badflags & WF_MIXCAP) |
| { |
| /* We really don't know if the word should be |
| * upper or lower case, add both. */ |
| c = captype(preword, NULL); |
| if (c == 0 || c == WF_ALLCAP) |
| { |
| make_case_word(tword + sp->ts_splitoff, |
| preword + sp->ts_prewordlen, |
| c == 0 ? WF_ALLCAP : 0); |
| |
| add_suggestion(su, &su->su_ga, preword, |
| sp->ts_fidx - repextra, |
| score + SCORE_ICASE, 0, FALSE, |
| lp->lp_sallang, FALSE); |
| } |
| } |
| } |
| } |
| } |
| |
| /* |
| * Try word split and/or compounding. |
| */ |
| if ((sp->ts_fidx >= sp->ts_fidxtry || fword_ends) |
| #ifdef FEAT_MBYTE |
| /* Don't split halfway a character. */ |
| && (!has_mbyte || sp->ts_tcharlen == 0) |
| #endif |
| ) |
| { |
| int try_compound; |
| int try_split; |
| |
| /* If past the end of the bad word don't try a split. |
| * Otherwise try changing the next word. E.g., find |
| * suggestions for "the the" where the second "the" is |
| * different. It's done like a split. |
| * TODO: word split for soundfold words */ |
| try_split = (sp->ts_fidx - repextra < su->su_badlen) |
| && !soundfold; |
| |
| /* Get here in several situations: |
| * 1. The word in the tree ends: |
| * If the word allows compounding try that. Otherwise try |
| * a split by inserting a space. For both check that a |
| * valid words starts at fword[sp->ts_fidx]. |
| * For NOBREAK do like compounding to be able to check if |
| * the next word is valid. |
| * 2. The badword does end, but it was due to a change (e.g., |
| * a swap). No need to split, but do check that the |
| * following word is valid. |
| * 3. The badword and the word in the tree end. It may still |
| * be possible to compound another (short) word. |
| */ |
| try_compound = FALSE; |
| if (!soundfold |
| && !slang->sl_nocompoundsugs |
| && slang->sl_compprog != NULL |
| && ((unsigned)flags >> 24) != 0 |
| && sp->ts_twordlen - sp->ts_splitoff |
| >= slang->sl_compminlen |
| #ifdef FEAT_MBYTE |
| && (!has_mbyte |
| || slang->sl_compminlen == 0 |
| || mb_charlen(tword + sp->ts_splitoff) |
| >= slang->sl_compminlen) |
| #endif |
| && (slang->sl_compsylmax < MAXWLEN |
| || sp->ts_complen + 1 - sp->ts_compsplit |
| < slang->sl_compmax) |
| && (can_be_compound(sp, slang, |
| compflags, ((unsigned)flags >> 24)))) |
| |
| { |
| try_compound = TRUE; |
| compflags[sp->ts_complen] = ((unsigned)flags >> 24); |
| compflags[sp->ts_complen + 1] = NUL; |
| } |
| |
| /* For NOBREAK we never try splitting, it won't make any word |
| * valid. */ |
| if (slang->sl_nobreak && !slang->sl_nocompoundsugs) |
| try_compound = TRUE; |
| |
| /* If we could add a compound word, and it's also possible to |
| * split at this point, do the split first and set |
| * TSF_DIDSPLIT to avoid doing it again. */ |
| else if (!fword_ends |
| && try_compound |
| && (sp->ts_flags & TSF_DIDSPLIT) == 0) |
| { |
| try_compound = FALSE; |
| sp->ts_flags |= TSF_DIDSPLIT; |
| --sp->ts_curi; /* do the same NUL again */ |
| compflags[sp->ts_complen] = NUL; |
| } |
| else |
| sp->ts_flags &= ~TSF_DIDSPLIT; |
| |
| if (try_split || try_compound) |
| { |
| if (!try_compound && (!fword_ends || !goodword_ends)) |
| { |
| /* If we're going to split need to check that the |
| * words so far are valid for compounding. If there |
| * is only one word it must not have the NEEDCOMPOUND |
| * flag. */ |
| if (sp->ts_complen == sp->ts_compsplit |
| && (flags & WF_NEEDCOMP)) |
| break; |
| p = preword; |
| while (*skiptowhite(p) != NUL) |
| p = skipwhite(skiptowhite(p)); |
| if (sp->ts_complen > sp->ts_compsplit |
| && !can_compound(slang, p, |
| compflags + sp->ts_compsplit)) |
| break; |
| |
| if (slang->sl_nosplitsugs) |
| newscore += SCORE_SPLIT_NO; |
| else |
| newscore += SCORE_SPLIT; |
| |
| /* Give a bonus to words seen before. */ |
| newscore = score_wordcount_adj(slang, newscore, |
| preword + sp->ts_prewordlen, TRUE); |
| } |
| |
| if (TRY_DEEPER(su, stack, depth, newscore)) |
| { |
| go_deeper(stack, depth, newscore); |
| #ifdef DEBUG_TRIEWALK |
| if (!try_compound && !fword_ends) |
| sprintf(changename[depth], "%.*s-%s: split", |
| sp->ts_twordlen, tword, fword + sp->ts_fidx); |
| else |
| sprintf(changename[depth], "%.*s-%s: compound", |
| sp->ts_twordlen, tword, fword + sp->ts_fidx); |
| #endif |
| /* Save things to be restored at STATE_SPLITUNDO. */ |
| sp->ts_save_badflags = su->su_badflags; |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_SPLITUNDO; |
| |
| ++depth; |
| sp = &stack[depth]; |
| |
| /* Append a space to preword when splitting. */ |
| if (!try_compound && !fword_ends) |
| STRCAT(preword, " "); |
| sp->ts_prewordlen = (char_u)STRLEN(preword); |
| sp->ts_splitoff = sp->ts_twordlen; |
| sp->ts_splitfidx = sp->ts_fidx; |
| |
| /* If the badword has a non-word character at this |
| * position skip it. That means replacing the |
| * non-word character with a space. Always skip a |
| * character when the word ends. But only when the |
| * good word can end. */ |
| if (((!try_compound && !spell_iswordp_nmw(fword |
| + sp->ts_fidx, |
| curwin)) |
| || fword_ends) |
| && fword[sp->ts_fidx] != NUL |
| && goodword_ends) |
| { |
| int l; |
| |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| l = MB_BYTE2LEN(fword[sp->ts_fidx]); |
| else |
| #endif |
| l = 1; |
| if (fword_ends) |
| { |
| /* Copy the skipped character to preword. */ |
| mch_memmove(preword + sp->ts_prewordlen, |
| fword + sp->ts_fidx, l); |
| sp->ts_prewordlen += l; |
| preword[sp->ts_prewordlen] = NUL; |
| } |
| else |
| sp->ts_score -= SCORE_SPLIT - SCORE_SUBST; |
| sp->ts_fidx += l; |
| } |
| |
| /* When compounding include compound flag in |
| * compflags[] (already set above). When splitting we |
| * may start compounding over again. */ |
| if (try_compound) |
| ++sp->ts_complen; |
| else |
| sp->ts_compsplit = sp->ts_complen; |
| sp->ts_prefixdepth = PFD_NOPREFIX; |
| |
| /* set su->su_badflags to the caps type at this |
| * position */ |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| n = nofold_len(fword, sp->ts_fidx, su->su_badptr); |
| else |
| #endif |
| n = sp->ts_fidx; |
| su->su_badflags = badword_captype(su->su_badptr + n, |
| su->su_badptr + su->su_badlen); |
| |
| /* Restart at top of the tree. */ |
| sp->ts_arridx = 0; |
| |
| /* If there are postponed prefixes, try these too. */ |
| if (pbyts != NULL) |
| { |
| byts = pbyts; |
| idxs = pidxs; |
| sp->ts_prefixdepth = PFD_PREFIXTREE; |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_NOPREFIX; |
| } |
| } |
| } |
| } |
| break; |
| |
| case STATE_SPLITUNDO: |
| /* Undo the changes done for word split or compound word. */ |
| su->su_badflags = sp->ts_save_badflags; |
| |
| /* Continue looking for NUL bytes. */ |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_START; |
| |
| /* In case we went into the prefix tree. */ |
| byts = fbyts; |
| idxs = fidxs; |
| break; |
| |
| case STATE_ENDNUL: |
| /* Past the NUL bytes in the node. */ |
| su->su_badflags = sp->ts_save_badflags; |
| if (fword[sp->ts_fidx] == NUL |
| #ifdef FEAT_MBYTE |
| && sp->ts_tcharlen == 0 |
| #endif |
| ) |
| { |
| /* The badword ends, can't use STATE_PLAIN. */ |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_DEL; |
| break; |
| } |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_PLAIN; |
| /*FALLTHROUGH*/ |
| |
| case STATE_PLAIN: |
| /* |
| * Go over all possible bytes at this node, add each to tword[] |
| * and use child node. "ts_curi" is the index. |
| */ |
| arridx = sp->ts_arridx; |
| if (sp->ts_curi > byts[arridx]) |
| { |
| /* Done all bytes at this node, do next state. When still at |
| * already changed bytes skip the other tricks. */ |
| PROF_STORE(sp->ts_state) |
| if (sp->ts_fidx >= sp->ts_fidxtry) |
| sp->ts_state = STATE_DEL; |
| else |
| sp->ts_state = STATE_FINAL; |
| } |
| else |
| { |
| arridx += sp->ts_curi++; |
| c = byts[arridx]; |
| |
| /* Normal byte, go one level deeper. If it's not equal to the |
| * byte in the bad word adjust the score. But don't even try |
| * when the byte was already changed. And don't try when we |
| * just deleted this byte, accepting it is always cheaper than |
| * delete + substitute. */ |
| if (c == fword[sp->ts_fidx] |
| #ifdef FEAT_MBYTE |
| || (sp->ts_tcharlen > 0 && sp->ts_isdiff != DIFF_NONE) |
| #endif |
| ) |
| newscore = 0; |
| else |
| newscore = SCORE_SUBST; |
| if ((newscore == 0 |
| || (sp->ts_fidx >= sp->ts_fidxtry |
| && ((sp->ts_flags & TSF_DIDDEL) == 0 |
| || c != fword[sp->ts_delidx]))) |
| && TRY_DEEPER(su, stack, depth, newscore)) |
| { |
| go_deeper(stack, depth, newscore); |
| #ifdef DEBUG_TRIEWALK |
| if (newscore > 0) |
| sprintf(changename[depth], "%.*s-%s: subst %c to %c", |
| sp->ts_twordlen, tword, fword + sp->ts_fidx, |
| fword[sp->ts_fidx], c); |
| else |
| sprintf(changename[depth], "%.*s-%s: accept %c", |
| sp->ts_twordlen, tword, fword + sp->ts_fidx, |
| fword[sp->ts_fidx]); |
| #endif |
| ++depth; |
| sp = &stack[depth]; |
| ++sp->ts_fidx; |
| tword[sp->ts_twordlen++] = c; |
| sp->ts_arridx = idxs[arridx]; |
| #ifdef FEAT_MBYTE |
| if (newscore == SCORE_SUBST) |
| sp->ts_isdiff = DIFF_YES; |
| if (has_mbyte) |
| { |
| /* Multi-byte characters are a bit complicated to |
| * handle: They differ when any of the bytes differ |
| * and then their length may also differ. */ |
| if (sp->ts_tcharlen == 0) |
| { |
| /* First byte. */ |
| sp->ts_tcharidx = 0; |
| sp->ts_tcharlen = MB_BYTE2LEN(c); |
| sp->ts_fcharstart = sp->ts_fidx - 1; |
| sp->ts_isdiff = (newscore != 0) |
| ? DIFF_YES : DIFF_NONE; |
| } |
| else if (sp->ts_isdiff == DIFF_INSERT) |
| /* When inserting trail bytes don't advance in the |
| * bad word. */ |
| --sp->ts_fidx; |
| if (++sp->ts_tcharidx == sp->ts_tcharlen) |
| { |
| /* Last byte of character. */ |
| if (sp->ts_isdiff == DIFF_YES) |
| { |
| /* Correct ts_fidx for the byte length of the |
| * character (we didn't check that before). */ |
| sp->ts_fidx = sp->ts_fcharstart |
| + MB_BYTE2LEN( |
| fword[sp->ts_fcharstart]); |
| |
| /* For changing a composing character adjust |
| * the score from SCORE_SUBST to |
| * SCORE_SUBCOMP. */ |
| if (enc_utf8 |
| && utf_iscomposing( |
| mb_ptr2char(tword |
| + sp->ts_twordlen |
| - sp->ts_tcharlen)) |
| && utf_iscomposing( |
| mb_ptr2char(fword |
| + sp->ts_fcharstart))) |
| sp->ts_score -= |
| SCORE_SUBST - SCORE_SUBCOMP; |
| |
| /* For a similar character adjust score from |
| * SCORE_SUBST to SCORE_SIMILAR. */ |
| else if (!soundfold |
| && slang->sl_has_map |
| && similar_chars(slang, |
| mb_ptr2char(tword |
| + sp->ts_twordlen |
| - sp->ts_tcharlen), |
| mb_ptr2char(fword |
| + sp->ts_fcharstart))) |
| sp->ts_score -= |
| SCORE_SUBST - SCORE_SIMILAR; |
| } |
| else if (sp->ts_isdiff == DIFF_INSERT |
| && sp->ts_twordlen > sp->ts_tcharlen) |
| { |
| p = tword + sp->ts_twordlen - sp->ts_tcharlen; |
| c = mb_ptr2char(p); |
| if (enc_utf8 && utf_iscomposing(c)) |
| { |
| /* Inserting a composing char doesn't |
| * count that much. */ |
| sp->ts_score -= SCORE_INS - SCORE_INSCOMP; |
| } |
| else |
| { |
| /* If the previous character was the same, |
| * thus doubling a character, give a bonus |
| * to the score. Also for the soundfold |
| * tree (might seem illogical but does |
| * give better scores). */ |
| mb_ptr_back(tword, p); |
| if (c == mb_ptr2char(p)) |
| sp->ts_score -= SCORE_INS |
| - SCORE_INSDUP; |
| } |
| } |
| |
| /* Starting a new char, reset the length. */ |
| sp->ts_tcharlen = 0; |
| } |
| } |
| else |
| #endif |
| { |
| /* If we found a similar char adjust the score. |
| * We do this after calling go_deeper() because |
| * it's slow. */ |
| if (newscore != 0 |
| && !soundfold |
| && slang->sl_has_map |
| && similar_chars(slang, |
| c, fword[sp->ts_fidx - 1])) |
| sp->ts_score -= SCORE_SUBST - SCORE_SIMILAR; |
| } |
| } |
| } |
| break; |
| |
| case STATE_DEL: |
| #ifdef FEAT_MBYTE |
| /* When past the first byte of a multi-byte char don't try |
| * delete/insert/swap a character. */ |
| if (has_mbyte && sp->ts_tcharlen > 0) |
| { |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_FINAL; |
| break; |
| } |
| #endif |
| /* |
| * Try skipping one character in the bad word (delete it). |
| */ |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_INS_PREP; |
| sp->ts_curi = 1; |
| if (soundfold && sp->ts_fidx == 0 && fword[sp->ts_fidx] == '*') |
| /* Deleting a vowel at the start of a word counts less, see |
| * soundalike_score(). */ |
| newscore = 2 * SCORE_DEL / 3; |
| else |
| newscore = SCORE_DEL; |
| if (fword[sp->ts_fidx] != NUL |
| && TRY_DEEPER(su, stack, depth, newscore)) |
| { |
| go_deeper(stack, depth, newscore); |
| #ifdef DEBUG_TRIEWALK |
| sprintf(changename[depth], "%.*s-%s: delete %c", |
| sp->ts_twordlen, tword, fword + sp->ts_fidx, |
| fword[sp->ts_fidx]); |
| #endif |
| ++depth; |
| |
| /* Remember what character we deleted, so that we can avoid |
| * inserting it again. */ |
| stack[depth].ts_flags |= TSF_DIDDEL; |
| stack[depth].ts_delidx = sp->ts_fidx; |
| |
| /* Advance over the character in fword[]. Give a bonus to the |
| * score if the same character is following "nn" -> "n". It's |
| * a bit illogical for soundfold tree but it does give better |
| * results. */ |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| c = mb_ptr2char(fword + sp->ts_fidx); |
| stack[depth].ts_fidx += MB_BYTE2LEN(fword[sp->ts_fidx]); |
| if (enc_utf8 && utf_iscomposing(c)) |
| stack[depth].ts_score -= SCORE_DEL - SCORE_DELCOMP; |
| else if (c == mb_ptr2char(fword + stack[depth].ts_fidx)) |
| stack[depth].ts_score -= SCORE_DEL - SCORE_DELDUP; |
| } |
| else |
| #endif |
| { |
| ++stack[depth].ts_fidx; |
| if (fword[sp->ts_fidx] == fword[sp->ts_fidx + 1]) |
| stack[depth].ts_score -= SCORE_DEL - SCORE_DELDUP; |
| } |
| break; |
| } |
| /*FALLTHROUGH*/ |
| |
| case STATE_INS_PREP: |
| if (sp->ts_flags & TSF_DIDDEL) |
| { |
| /* If we just deleted a byte then inserting won't make sense, |
| * a substitute is always cheaper. */ |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_SWAP; |
| break; |
| } |
| |
| /* skip over NUL bytes */ |
| n = sp->ts_arridx; |
| for (;;) |
| { |
| if (sp->ts_curi > byts[n]) |
| { |
| /* Only NUL bytes at this node, go to next state. */ |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_SWAP; |
| break; |
| } |
| if (byts[n + sp->ts_curi] != NUL) |
| { |
| /* Found a byte to insert. */ |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_INS; |
| break; |
| } |
| ++sp->ts_curi; |
| } |
| break; |
| |
| /*FALLTHROUGH*/ |
| |
| case STATE_INS: |
| /* Insert one byte. Repeat this for each possible byte at this |
| * node. */ |
| n = sp->ts_arridx; |
| if (sp->ts_curi > byts[n]) |
| { |
| /* Done all bytes at this node, go to next state. */ |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_SWAP; |
| break; |
| } |
| |
| /* Do one more byte at this node, but: |
| * - Skip NUL bytes. |
| * - Skip the byte if it's equal to the byte in the word, |
| * accepting that byte is always better. |
| */ |
| n += sp->ts_curi++; |
| c = byts[n]; |
| if (soundfold && sp->ts_twordlen == 0 && c == '*') |
| /* Inserting a vowel at the start of a word counts less, |
| * see soundalike_score(). */ |
| newscore = 2 * SCORE_INS / 3; |
| else |
| newscore = SCORE_INS; |
| if (c != fword[sp->ts_fidx] |
| && TRY_DEEPER(su, stack, depth, newscore)) |
| { |
| go_deeper(stack, depth, newscore); |
| #ifdef DEBUG_TRIEWALK |
| sprintf(changename[depth], "%.*s-%s: insert %c", |
| sp->ts_twordlen, tword, fword + sp->ts_fidx, |
| c); |
| #endif |
| ++depth; |
| sp = &stack[depth]; |
| tword[sp->ts_twordlen++] = c; |
| sp->ts_arridx = idxs[n]; |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| fl = MB_BYTE2LEN(c); |
| if (fl > 1) |
| { |
| /* There are following bytes for the same character. |
| * We must find all bytes before trying |
| * delete/insert/swap/etc. */ |
| sp->ts_tcharlen = fl; |
| sp->ts_tcharidx = 1; |
| sp->ts_isdiff = DIFF_INSERT; |
| } |
| } |
| else |
| fl = 1; |
| if (fl == 1) |
| #endif |
| { |
| /* If the previous character was the same, thus doubling a |
| * character, give a bonus to the score. Also for |
| * soundfold words (illogical but does give a better |
| * score). */ |
| if (sp->ts_twordlen >= 2 |
| && tword[sp->ts_twordlen - 2] == c) |
| sp->ts_score -= SCORE_INS - SCORE_INSDUP; |
| } |
| } |
| break; |
| |
| case STATE_SWAP: |
| /* |
| * Swap two bytes in the bad word: "12" -> "21". |
| * We change "fword" here, it's changed back afterwards at |
| * STATE_UNSWAP. |
| */ |
| p = fword + sp->ts_fidx; |
| c = *p; |
| if (c == NUL) |
| { |
| /* End of word, can't swap or replace. */ |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_FINAL; |
| break; |
| } |
| |
| /* Don't swap if the first character is not a word character. |
| * SWAP3 etc. also don't make sense then. */ |
| if (!soundfold && !spell_iswordp(p, curwin)) |
| { |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_REP_INI; |
| break; |
| } |
| |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| n = mb_cptr2len(p); |
| c = mb_ptr2char(p); |
| if (p[n] == NUL) |
| c2 = NUL; |
| else if (!soundfold && !spell_iswordp(p + n, curwin)) |
| c2 = c; /* don't swap non-word char */ |
| else |
| c2 = mb_ptr2char(p + n); |
| } |
| else |
| #endif |
| { |
| if (p[1] == NUL) |
| c2 = NUL; |
| else if (!soundfold && !spell_iswordp(p + 1, curwin)) |
| c2 = c; /* don't swap non-word char */ |
| else |
| c2 = p[1]; |
| } |
| |
| /* When the second character is NUL we can't swap. */ |
| if (c2 == NUL) |
| { |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_REP_INI; |
| break; |
| } |
| |
| /* When characters are identical, swap won't do anything. |
| * Also get here if the second char is not a word character. */ |
| if (c == c2) |
| { |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_SWAP3; |
| break; |
| } |
| if (c2 != NUL && TRY_DEEPER(su, stack, depth, SCORE_SWAP)) |
| { |
| go_deeper(stack, depth, SCORE_SWAP); |
| #ifdef DEBUG_TRIEWALK |
| sprintf(changename[depth], "%.*s-%s: swap %c and %c", |
| sp->ts_twordlen, tword, fword + sp->ts_fidx, |
| c, c2); |
| #endif |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_UNSWAP; |
| ++depth; |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| fl = mb_char2len(c2); |
| mch_memmove(p, p + n, fl); |
| mb_char2bytes(c, p + fl); |
| stack[depth].ts_fidxtry = sp->ts_fidx + n + fl; |
| } |
| else |
| #endif |
| { |
| p[0] = c2; |
| p[1] = c; |
| stack[depth].ts_fidxtry = sp->ts_fidx + 2; |
| } |
| } |
| else |
| { |
| /* If this swap doesn't work then SWAP3 won't either. */ |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_REP_INI; |
| } |
| break; |
| |
| case STATE_UNSWAP: |
| /* Undo the STATE_SWAP swap: "21" -> "12". */ |
| p = fword + sp->ts_fidx; |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| n = MB_BYTE2LEN(*p); |
| c = mb_ptr2char(p + n); |
| mch_memmove(p + MB_BYTE2LEN(p[n]), p, n); |
| mb_char2bytes(c, p); |
| } |
| else |
| #endif |
| { |
| c = *p; |
| *p = p[1]; |
| p[1] = c; |
| } |
| /*FALLTHROUGH*/ |
| |
| case STATE_SWAP3: |
| /* Swap two bytes, skipping one: "123" -> "321". We change |
| * "fword" here, it's changed back afterwards at STATE_UNSWAP3. */ |
| p = fword + sp->ts_fidx; |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| n = mb_cptr2len(p); |
| c = mb_ptr2char(p); |
| fl = mb_cptr2len(p + n); |
| c2 = mb_ptr2char(p + n); |
| if (!soundfold && !spell_iswordp(p + n + fl, curwin)) |
| c3 = c; /* don't swap non-word char */ |
| else |
| c3 = mb_ptr2char(p + n + fl); |
| } |
| else |
| #endif |
| { |
| c = *p; |
| c2 = p[1]; |
| if (!soundfold && !spell_iswordp(p + 2, curwin)) |
| c3 = c; /* don't swap non-word char */ |
| else |
| c3 = p[2]; |
| } |
| |
| /* When characters are identical: "121" then SWAP3 result is |
| * identical, ROT3L result is same as SWAP: "211", ROT3L result is |
| * same as SWAP on next char: "112". Thus skip all swapping. |
| * Also skip when c3 is NUL. |
| * Also get here when the third character is not a word character. |
| * Second character may any char: "a.b" -> "b.a" */ |
| if (c == c3 || c3 == NUL) |
| { |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_REP_INI; |
| break; |
| } |
| if (TRY_DEEPER(su, stack, depth, SCORE_SWAP3)) |
| { |
| go_deeper(stack, depth, SCORE_SWAP3); |
| #ifdef DEBUG_TRIEWALK |
| sprintf(changename[depth], "%.*s-%s: swap3 %c and %c", |
| sp->ts_twordlen, tword, fword + sp->ts_fidx, |
| c, c3); |
| #endif |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_UNSWAP3; |
| ++depth; |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| tl = mb_char2len(c3); |
| mch_memmove(p, p + n + fl, tl); |
| mb_char2bytes(c2, p + tl); |
| mb_char2bytes(c, p + fl + tl); |
| stack[depth].ts_fidxtry = sp->ts_fidx + n + fl + tl; |
| } |
| else |
| #endif |
| { |
| p[0] = p[2]; |
| p[2] = c; |
| stack[depth].ts_fidxtry = sp->ts_fidx + 3; |
| } |
| } |
| else |
| { |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_REP_INI; |
| } |
| break; |
| |
| case STATE_UNSWAP3: |
| /* Undo STATE_SWAP3: "321" -> "123" */ |
| p = fword + sp->ts_fidx; |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| n = MB_BYTE2LEN(*p); |
| c2 = mb_ptr2char(p + n); |
| fl = MB_BYTE2LEN(p[n]); |
| c = mb_ptr2char(p + n + fl); |
| tl = MB_BYTE2LEN(p[n + fl]); |
| mch_memmove(p + fl + tl, p, n); |
| mb_char2bytes(c, p); |
| mb_char2bytes(c2, p + tl); |
| p = p + tl; |
| } |
| else |
| #endif |
| { |
| c = *p; |
| *p = p[2]; |
| p[2] = c; |
| ++p; |
| } |
| |
| if (!soundfold && !spell_iswordp(p, curwin)) |
| { |
| /* Middle char is not a word char, skip the rotate. First and |
| * third char were already checked at swap and swap3. */ |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_REP_INI; |
| break; |
| } |
| |
| /* Rotate three characters left: "123" -> "231". We change |
| * "fword" here, it's changed back afterwards at STATE_UNROT3L. */ |
| if (TRY_DEEPER(su, stack, depth, SCORE_SWAP3)) |
| { |
| go_deeper(stack, depth, SCORE_SWAP3); |
| #ifdef DEBUG_TRIEWALK |
| p = fword + sp->ts_fidx; |
| sprintf(changename[depth], "%.*s-%s: rotate left %c%c%c", |
| sp->ts_twordlen, tword, fword + sp->ts_fidx, |
| p[0], p[1], p[2]); |
| #endif |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_UNROT3L; |
| ++depth; |
| p = fword + sp->ts_fidx; |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| n = mb_cptr2len(p); |
| c = mb_ptr2char(p); |
| fl = mb_cptr2len(p + n); |
| fl += mb_cptr2len(p + n + fl); |
| mch_memmove(p, p + n, fl); |
| mb_char2bytes(c, p + fl); |
| stack[depth].ts_fidxtry = sp->ts_fidx + n + fl; |
| } |
| else |
| #endif |
| { |
| c = *p; |
| *p = p[1]; |
| p[1] = p[2]; |
| p[2] = c; |
| stack[depth].ts_fidxtry = sp->ts_fidx + 3; |
| } |
| } |
| else |
| { |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_REP_INI; |
| } |
| break; |
| |
| case STATE_UNROT3L: |
| /* Undo ROT3L: "231" -> "123" */ |
| p = fword + sp->ts_fidx; |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| n = MB_BYTE2LEN(*p); |
| n += MB_BYTE2LEN(p[n]); |
| c = mb_ptr2char(p + n); |
| tl = MB_BYTE2LEN(p[n]); |
| mch_memmove(p + tl, p, n); |
| mb_char2bytes(c, p); |
| } |
| else |
| #endif |
| { |
| c = p[2]; |
| p[2] = p[1]; |
| p[1] = *p; |
| *p = c; |
| } |
| |
| /* Rotate three bytes right: "123" -> "312". We change "fword" |
| * here, it's changed back afterwards at STATE_UNROT3R. */ |
| if (TRY_DEEPER(su, stack, depth, SCORE_SWAP3)) |
| { |
| go_deeper(stack, depth, SCORE_SWAP3); |
| #ifdef DEBUG_TRIEWALK |
| p = fword + sp->ts_fidx; |
| sprintf(changename[depth], "%.*s-%s: rotate right %c%c%c", |
| sp->ts_twordlen, tword, fword + sp->ts_fidx, |
| p[0], p[1], p[2]); |
| #endif |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_UNROT3R; |
| ++depth; |
| p = fword + sp->ts_fidx; |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| n = mb_cptr2len(p); |
| n += mb_cptr2len(p + n); |
| c = mb_ptr2char(p + n); |
| tl = mb_cptr2len(p + n); |
| mch_memmove(p + tl, p, n); |
| mb_char2bytes(c, p); |
| stack[depth].ts_fidxtry = sp->ts_fidx + n + tl; |
| } |
| else |
| #endif |
| { |
| c = p[2]; |
| p[2] = p[1]; |
| p[1] = *p; |
| *p = c; |
| stack[depth].ts_fidxtry = sp->ts_fidx + 3; |
| } |
| } |
| else |
| { |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_REP_INI; |
| } |
| break; |
| |
| case STATE_UNROT3R: |
| /* Undo ROT3R: "312" -> "123" */ |
| p = fword + sp->ts_fidx; |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| c = mb_ptr2char(p); |
| tl = MB_BYTE2LEN(*p); |
| n = MB_BYTE2LEN(p[tl]); |
| n += MB_BYTE2LEN(p[tl + n]); |
| mch_memmove(p, p + tl, n); |
| mb_char2bytes(c, p + n); |
| } |
| else |
| #endif |
| { |
| c = *p; |
| *p = p[1]; |
| p[1] = p[2]; |
| p[2] = c; |
| } |
| /*FALLTHROUGH*/ |
| |
| case STATE_REP_INI: |
| /* Check if matching with REP items from the .aff file would work. |
| * Quickly skip if: |
| * - there are no REP items and we are not in the soundfold trie |
| * - the score is going to be too high anyway |
| * - already applied a REP item or swapped here */ |
| if ((lp->lp_replang == NULL && !soundfold) |
| || sp->ts_score + SCORE_REP >= su->su_maxscore |
| || sp->ts_fidx < sp->ts_fidxtry) |
| { |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_FINAL; |
| break; |
| } |
| |
| /* Use the first byte to quickly find the first entry that may |
| * match. If the index is -1 there is none. */ |
| if (soundfold) |
| sp->ts_curi = slang->sl_repsal_first[fword[sp->ts_fidx]]; |
| else |
| sp->ts_curi = lp->lp_replang->sl_rep_first[fword[sp->ts_fidx]]; |
| |
| if (sp->ts_curi < 0) |
| { |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_FINAL; |
| break; |
| } |
| |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_REP; |
| /*FALLTHROUGH*/ |
| |
| case STATE_REP: |
| /* Try matching with REP items from the .aff file. For each match |
| * replace the characters and check if the resulting word is |
| * valid. */ |
| p = fword + sp->ts_fidx; |
| |
| if (soundfold) |
| gap = &slang->sl_repsal; |
| else |
| gap = &lp->lp_replang->sl_rep; |
| while (sp->ts_curi < gap->ga_len) |
| { |
| ftp = (fromto_T *)gap->ga_data + sp->ts_curi++; |
| if (*ftp->ft_from != *p) |
| { |
| /* past possible matching entries */ |
| sp->ts_curi = gap->ga_len; |
| break; |
| } |
| if (STRNCMP(ftp->ft_from, p, STRLEN(ftp->ft_from)) == 0 |
| && TRY_DEEPER(su, stack, depth, SCORE_REP)) |
| { |
| go_deeper(stack, depth, SCORE_REP); |
| #ifdef DEBUG_TRIEWALK |
| sprintf(changename[depth], "%.*s-%s: replace %s with %s", |
| sp->ts_twordlen, tword, fword + sp->ts_fidx, |
| ftp->ft_from, ftp->ft_to); |
| #endif |
| /* Need to undo this afterwards. */ |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_REP_UNDO; |
| |
| /* Change the "from" to the "to" string. */ |
| ++depth; |
| fl = (int)STRLEN(ftp->ft_from); |
| tl = (int)STRLEN(ftp->ft_to); |
| if (fl != tl) |
| { |
| STRMOVE(p + tl, p + fl); |
| repextra += tl - fl; |
| } |
| mch_memmove(p, ftp->ft_to, tl); |
| stack[depth].ts_fidxtry = sp->ts_fidx + tl; |
| #ifdef FEAT_MBYTE |
| stack[depth].ts_tcharlen = 0; |
| #endif |
| break; |
| } |
| } |
| |
| if (sp->ts_curi >= gap->ga_len && sp->ts_state == STATE_REP) |
| { |
| /* No (more) matches. */ |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_FINAL; |
| } |
| |
| break; |
| |
| case STATE_REP_UNDO: |
| /* Undo a REP replacement and continue with the next one. */ |
| if (soundfold) |
| gap = &slang->sl_repsal; |
| else |
| gap = &lp->lp_replang->sl_rep; |
| ftp = (fromto_T *)gap->ga_data + sp->ts_curi - 1; |
| fl = (int)STRLEN(ftp->ft_from); |
| tl = (int)STRLEN(ftp->ft_to); |
| p = fword + sp->ts_fidx; |
| if (fl != tl) |
| { |
| STRMOVE(p + fl, p + tl); |
| repextra -= tl - fl; |
| } |
| mch_memmove(p, ftp->ft_from, fl); |
| PROF_STORE(sp->ts_state) |
| sp->ts_state = STATE_REP; |
| break; |
| |
| default: |
| /* Did all possible states at this level, go up one level. */ |
| --depth; |
| |
| if (depth >= 0 && stack[depth].ts_prefixdepth == PFD_PREFIXTREE) |
| { |
| /* Continue in or go back to the prefix tree. */ |
| byts = pbyts; |
| idxs = pidxs; |
| } |
| |
| /* Don't check for CTRL-C too often, it takes time. */ |
| if (--breakcheckcount == 0) |
| { |
| ui_breakcheck(); |
| breakcheckcount = 1000; |
| } |
| } |
| } |
| } |
| |
| |
| /* |
| * Go one level deeper in the tree. |
| */ |
| static void |
| go_deeper(trystate_T *stack, int depth, int score_add) |
| { |
| stack[depth + 1] = stack[depth]; |
| stack[depth + 1].ts_state = STATE_START; |
| stack[depth + 1].ts_score = stack[depth].ts_score + score_add; |
| stack[depth + 1].ts_curi = 1; /* start just after length byte */ |
| stack[depth + 1].ts_flags = 0; |
| } |
| |
| #ifdef FEAT_MBYTE |
| /* |
| * Case-folding may change the number of bytes: Count nr of chars in |
| * fword[flen] and return the byte length of that many chars in "word". |
| */ |
| static int |
| nofold_len(char_u *fword, int flen, char_u *word) |
| { |
| char_u *p; |
| int i = 0; |
| |
| for (p = fword; p < fword + flen; mb_ptr_adv(p)) |
| ++i; |
| for (p = word; i > 0; mb_ptr_adv(p)) |
| --i; |
| return (int)(p - word); |
| } |
| #endif |
| |
| /* |
| * "fword" is a good word with case folded. Find the matching keep-case |
| * words and put it in "kword". |
| * Theoretically there could be several keep-case words that result in the |
| * same case-folded word, but we only find one... |
| */ |
| static void |
| find_keepcap_word(slang_T *slang, char_u *fword, char_u *kword) |
| { |
| char_u uword[MAXWLEN]; /* "fword" in upper-case */ |
| int depth; |
| idx_T tryidx; |
| |
| /* The following arrays are used at each depth in the tree. */ |
| idx_T arridx[MAXWLEN]; |
| int round[MAXWLEN]; |
| int fwordidx[MAXWLEN]; |
| int uwordidx[MAXWLEN]; |
| int kwordlen[MAXWLEN]; |
| |
| int flen, ulen; |
| int l; |
| int len; |
| int c; |
| idx_T lo, hi, m; |
| char_u *p; |
| char_u *byts = slang->sl_kbyts; /* array with bytes of the words */ |
| idx_T *idxs = slang->sl_kidxs; /* array with indexes */ |
| |
| if (byts == NULL) |
| { |
| /* array is empty: "cannot happen" */ |
| *kword = NUL; |
| return; |
| } |
| |
| /* Make an all-cap version of "fword". */ |
| allcap_copy(fword, uword); |
| |
| /* |
| * Each character needs to be tried both case-folded and upper-case. |
| * All this gets very complicated if we keep in mind that changing case |
| * may change the byte length of a multi-byte character... |
| */ |
| depth = 0; |
| arridx[0] = 0; |
| round[0] = 0; |
| fwordidx[0] = 0; |
| uwordidx[0] = 0; |
| kwordlen[0] = 0; |
| while (depth >= 0) |
| { |
| if (fword[fwordidx[depth]] == NUL) |
| { |
| /* We are at the end of "fword". If the tree allows a word to end |
| * here we have found a match. */ |
| if (byts[arridx[depth] + 1] == 0) |
| { |
| kword[kwordlen[depth]] = NUL; |
| return; |
| } |
| |
| /* kword is getting too long, continue one level up */ |
| --depth; |
| } |
| else if (++round[depth] > 2) |
| { |
| /* tried both fold-case and upper-case character, continue one |
| * level up */ |
| --depth; |
| } |
| else |
| { |
| /* |
| * round[depth] == 1: Try using the folded-case character. |
| * round[depth] == 2: Try using the upper-case character. |
| */ |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| flen = mb_cptr2len(fword + fwordidx[depth]); |
| ulen = mb_cptr2len(uword + uwordidx[depth]); |
| } |
| else |
| #endif |
| ulen = flen = 1; |
| if (round[depth] == 1) |
| { |
| p = fword + fwordidx[depth]; |
| l = flen; |
| } |
| else |
| { |
| p = uword + uwordidx[depth]; |
| l = ulen; |
| } |
| |
| for (tryidx = arridx[depth]; l > 0; --l) |
| { |
| /* Perform a binary search in the list of accepted bytes. */ |
| len = byts[tryidx++]; |
| c = *p++; |
| lo = tryidx; |
| hi = tryidx + len - 1; |
| while (lo < hi) |
| { |
| m = (lo + hi) / 2; |
| if (byts[m] > c) |
| hi = m - 1; |
| else if (byts[m] < c) |
| lo = m + 1; |
| else |
| { |
| lo = hi = m; |
| break; |
| } |
| } |
| |
| /* Stop if there is no matching byte. */ |
| if (hi < lo || byts[lo] != c) |
| break; |
| |
| /* Continue at the child (if there is one). */ |
| tryidx = idxs[lo]; |
| } |
| |
| if (l == 0) |
| { |
| /* |
| * Found the matching char. Copy it to "kword" and go a |
| * level deeper. |
| */ |
| if (round[depth] == 1) |
| { |
| STRNCPY(kword + kwordlen[depth], fword + fwordidx[depth], |
| flen); |
| kwordlen[depth + 1] = kwordlen[depth] + flen; |
| } |
| else |
| { |
| STRNCPY(kword + kwordlen[depth], uword + uwordidx[depth], |
| ulen); |
| kwordlen[depth + 1] = kwordlen[depth] + ulen; |
| } |
| fwordidx[depth + 1] = fwordidx[depth] + flen; |
| uwordidx[depth + 1] = uwordidx[depth] + ulen; |
| |
| ++depth; |
| arridx[depth] = tryidx; |
| round[depth] = 0; |
| } |
| } |
| } |
| |
| /* Didn't find it: "cannot happen". */ |
| *kword = NUL; |
| } |
| |
| /* |
| * Compute the sound-a-like score for suggestions in su->su_ga and add them to |
| * su->su_sga. |
| */ |
| static void |
| score_comp_sal(suginfo_T *su) |
| { |
| langp_T *lp; |
| char_u badsound[MAXWLEN]; |
| int i; |
| suggest_T *stp; |
| suggest_T *sstp; |
| int score; |
| int lpi; |
| |
| if (ga_grow(&su->su_sga, su->su_ga.ga_len) == FAIL) |
| return; |
| |
| /* Use the sound-folding of the first language that supports it. */ |
| for (lpi = 0; lpi < curwin->w_s->b_langp.ga_len; ++lpi) |
| { |
| lp = LANGP_ENTRY(curwin->w_s->b_langp, lpi); |
| if (lp->lp_slang->sl_sal.ga_len > 0) |
| { |
| /* soundfold the bad word */ |
| spell_soundfold(lp->lp_slang, su->su_fbadword, TRUE, badsound); |
| |
| for (i = 0; i < su->su_ga.ga_len; ++i) |
| { |
| stp = &SUG(su->su_ga, i); |
| |
| /* Case-fold the suggested word, sound-fold it and compute the |
| * sound-a-like score. */ |
| score = stp_sal_score(stp, su, lp->lp_slang, badsound); |
| if (score < SCORE_MAXMAX) |
| { |
| /* Add the suggestion. */ |
| sstp = &SUG(su->su_sga, su->su_sga.ga_len); |
| sstp->st_word = vim_strsave(stp->st_word); |
| if (sstp->st_word != NULL) |
| { |
| sstp->st_wordlen = stp->st_wordlen; |
| sstp->st_score = score; |
| sstp->st_altscore = 0; |
| sstp->st_orglen = stp->st_orglen; |
| ++su->su_sga.ga_len; |
| } |
| } |
| } |
| break; |
| } |
| } |
| } |
| |
| /* |
| * Combine the list of suggestions in su->su_ga and su->su_sga. |
| * They are entwined. |
| */ |
| static void |
| score_combine(suginfo_T *su) |
| { |
| int i; |
| int j; |
| garray_T ga; |
| garray_T *gap; |
| langp_T *lp; |
| suggest_T *stp; |
| char_u *p; |
| char_u badsound[MAXWLEN]; |
| int round; |
| int lpi; |
| slang_T *slang = NULL; |
| |
| /* Add the alternate score to su_ga. */ |
| for (lpi = 0; lpi < curwin->w_s->b_langp.ga_len; ++lpi) |
| { |
| lp = LANGP_ENTRY(curwin->w_s->b_langp, lpi); |
| if (lp->lp_slang->sl_sal.ga_len > 0) |
| { |
| /* soundfold the bad word */ |
| slang = lp->lp_slang; |
| spell_soundfold(slang, su->su_fbadword, TRUE, badsound); |
| |
| for (i = 0; i < su->su_ga.ga_len; ++i) |
| { |
| stp = &SUG(su->su_ga, i); |
| stp->st_altscore = stp_sal_score(stp, su, slang, badsound); |
| if (stp->st_altscore == SCORE_MAXMAX) |
| stp->st_score = (stp->st_score * 3 + SCORE_BIG) / 4; |
| else |
| stp->st_score = (stp->st_score * 3 |
| + stp->st_altscore) / 4; |
| stp->st_salscore = FALSE; |
| } |
| break; |
| } |
| } |
| |
| if (slang == NULL) /* Using "double" without sound folding. */ |
| { |
| (void)cleanup_suggestions(&su->su_ga, su->su_maxscore, |
| su->su_maxcount); |
| return; |
| } |
| |
| /* Add the alternate score to su_sga. */ |
| for (i = 0; i < su->su_sga.ga_len; ++i) |
| { |
| stp = &SUG(su->su_sga, i); |
| stp->st_altscore = spell_edit_score(slang, |
| su->su_badword, stp->st_word); |
| if (stp->st_score == SCORE_MAXMAX) |
| stp->st_score = (SCORE_BIG * 7 + stp->st_altscore) / 8; |
| else |
| stp->st_score = (stp->st_score * 7 + stp->st_altscore) / 8; |
| stp->st_salscore = TRUE; |
| } |
| |
| /* Remove bad suggestions, sort the suggestions and truncate at "maxcount" |
| * for both lists. */ |
| check_suggestions(su, &su->su_ga); |
| (void)cleanup_suggestions(&su->su_ga, su->su_maxscore, su->su_maxcount); |
| check_suggestions(su, &su->su_sga); |
| (void)cleanup_suggestions(&su->su_sga, su->su_maxscore, su->su_maxcount); |
| |
| ga_init2(&ga, (int)sizeof(suginfo_T), 1); |
| if (ga_grow(&ga, su->su_ga.ga_len + su->su_sga.ga_len) == FAIL) |
| return; |
| |
| stp = &SUG(ga, 0); |
| for (i = 0; i < su->su_ga.ga_len || i < su->su_sga.ga_len; ++i) |
| { |
| /* round 1: get a suggestion from su_ga |
| * round 2: get a suggestion from su_sga */ |
| for (round = 1; round <= 2; ++round) |
| { |
| gap = round == 1 ? &su->su_ga : &su->su_sga; |
| if (i < gap->ga_len) |
| { |
| /* Don't add a word if it's already there. */ |
| p = SUG(*gap, i).st_word; |
| for (j = 0; j < ga.ga_len; ++j) |
| if (STRCMP(stp[j].st_word, p) == 0) |
| break; |
| if (j == ga.ga_len) |
| stp[ga.ga_len++] = SUG(*gap, i); |
| else |
| vim_free(p); |
| } |
| } |
| } |
| |
| ga_clear(&su->su_ga); |
| ga_clear(&su->su_sga); |
| |
| /* Truncate the list to the number of suggestions that will be displayed. */ |
| if (ga.ga_len > su->su_maxcount) |
| { |
| for (i = su->su_maxcount; i < ga.ga_len; ++i) |
| vim_free(stp[i].st_word); |
| ga.ga_len = su->su_maxcount; |
| } |
| |
| su->su_ga = ga; |
| } |
| |
| /* |
| * For the goodword in "stp" compute the soundalike score compared to the |
| * badword. |
| */ |
| static int |
| stp_sal_score( |
| suggest_T *stp, |
| suginfo_T *su, |
| slang_T *slang, |
| char_u *badsound) /* sound-folded badword */ |
| { |
| char_u *p; |
| char_u *pbad; |
| char_u *pgood; |
| char_u badsound2[MAXWLEN]; |
| char_u fword[MAXWLEN]; |
| char_u goodsound[MAXWLEN]; |
| char_u goodword[MAXWLEN]; |
| int lendiff; |
| |
| lendiff = (int)(su->su_badlen - stp->st_orglen); |
| if (lendiff >= 0) |
| pbad = badsound; |
| else |
| { |
| /* soundfold the bad word with more characters following */ |
| (void)spell_casefold(su->su_badptr, stp->st_orglen, fword, MAXWLEN); |
| |
| /* When joining two words the sound often changes a lot. E.g., "t he" |
| * sounds like "t h" while "the" sounds like "@". Avoid that by |
| * removing the space. Don't do it when the good word also contains a |
| * space. */ |
| if (vim_iswhite(su->su_badptr[su->su_badlen]) |
| && *skiptowhite(stp->st_word) == NUL) |
| for (p = fword; *(p = skiptowhite(p)) != NUL; ) |
| STRMOVE(p, p + 1); |
| |
| spell_soundfold(slang, fword, TRUE, badsound2); |
| pbad = badsound2; |
| } |
| |
| if (lendiff > 0 && stp->st_wordlen + lendiff < MAXWLEN) |
| { |
| /* Add part of the bad word to the good word, so that we soundfold |
| * what replaces the bad word. */ |
| STRCPY(goodword, stp->st_word); |
| vim_strncpy(goodword + stp->st_wordlen, |
| su->su_badptr + su->su_badlen - lendiff, lendiff); |
| pgood = goodword; |
| } |
| else |
| pgood = stp->st_word; |
| |
| /* Sound-fold the word and compute the score for the difference. */ |
| spell_soundfold(slang, pgood, FALSE, goodsound); |
| |
| return soundalike_score(goodsound, pbad); |
| } |
| |
| /* structure used to store soundfolded words that add_sound_suggest() has |
| * handled already. */ |
| typedef struct |
| { |
| short sft_score; /* lowest score used */ |
| char_u sft_word[1]; /* soundfolded word, actually longer */ |
| } sftword_T; |
| |
| static sftword_T dumsft; |
| #define HIKEY2SFT(p) ((sftword_T *)(p - (dumsft.sft_word - (char_u *)&dumsft))) |
| #define HI2SFT(hi) HIKEY2SFT((hi)->hi_key) |
| |
| /* |
| * Prepare for calling suggest_try_soundalike(). |
| */ |
| static void |
| suggest_try_soundalike_prep(void) |
| { |
| langp_T *lp; |
| int lpi; |
| slang_T *slang; |
| |
| /* Do this for all languages that support sound folding and for which a |
| * .sug file has been loaded. */ |
| for (lpi = 0; lpi < curwin->w_s->b_langp.ga_len; ++lpi) |
| { |
| lp = LANGP_ENTRY(curwin->w_s->b_langp, lpi); |
| slang = lp->lp_slang; |
| if (slang->sl_sal.ga_len > 0 && slang->sl_sbyts != NULL) |
| /* prepare the hashtable used by add_sound_suggest() */ |
| hash_init(&slang->sl_sounddone); |
| } |
| } |
| |
| /* |
| * Find suggestions by comparing the word in a sound-a-like form. |
| * Note: This doesn't support postponed prefixes. |
| */ |
| static void |
| suggest_try_soundalike(suginfo_T *su) |
| { |
| char_u salword[MAXWLEN]; |
| langp_T *lp; |
| int lpi; |
| slang_T *slang; |
| |
| /* Do this for all languages that support sound folding and for which a |
| * .sug file has been loaded. */ |
| for (lpi = 0; lpi < curwin->w_s->b_langp.ga_len; ++lpi) |
| { |
| lp = LANGP_ENTRY(curwin->w_s->b_langp, lpi); |
| slang = lp->lp_slang; |
| if (slang->sl_sal.ga_len > 0 && slang->sl_sbyts != NULL) |
| { |
| /* soundfold the bad word */ |
| spell_soundfold(slang, su->su_fbadword, TRUE, salword); |
| |
| /* try all kinds of inserts/deletes/swaps/etc. */ |
| /* TODO: also soundfold the next words, so that we can try joining |
| * and splitting */ |
| #ifdef SUGGEST_PROFILE |
| prof_init(); |
| #endif |
| suggest_trie_walk(su, lp, salword, TRUE); |
| #ifdef SUGGEST_PROFILE |
| prof_report("soundalike"); |
| #endif |
| } |
| } |
| } |
| |
| /* |
| * Finish up after calling suggest_try_soundalike(). |
| */ |
| static void |
| suggest_try_soundalike_finish(void) |
| { |
| langp_T *lp; |
| int lpi; |
| slang_T *slang; |
| int todo; |
| hashitem_T *hi; |
| |
| /* Do this for all languages that support sound folding and for which a |
| * .sug file has been loaded. */ |
| for (lpi = 0; lpi < curwin->w_s->b_langp.ga_len; ++lpi) |
| { |
| lp = LANGP_ENTRY(curwin->w_s->b_langp, lpi); |
| slang = lp->lp_slang; |
| if (slang->sl_sal.ga_len > 0 && slang->sl_sbyts != NULL) |
| { |
| /* Free the info about handled words. */ |
| todo = (int)slang->sl_sounddone.ht_used; |
| for (hi = slang->sl_sounddone.ht_array; todo > 0; ++hi) |
| if (!HASHITEM_EMPTY(hi)) |
| { |
| vim_free(HI2SFT(hi)); |
| --todo; |
| } |
| |
| /* Clear the hashtable, it may also be used by another region. */ |
| hash_clear(&slang->sl_sounddone); |
| hash_init(&slang->sl_sounddone); |
| } |
| } |
| } |
| |
| /* |
| * A match with a soundfolded word is found. Add the good word(s) that |
| * produce this soundfolded word. |
| */ |
| static void |
| add_sound_suggest( |
| suginfo_T *su, |
| char_u *goodword, |
| int score, /* soundfold score */ |
| langp_T *lp) |
| { |
| slang_T *slang = lp->lp_slang; /* language for sound folding */ |
| int sfwordnr; |
| char_u *nrline; |
| int orgnr; |
| char_u theword[MAXWLEN]; |
| int i; |
| int wlen; |
| char_u *byts; |
| idx_T *idxs; |
| int n; |
| int wordcount; |
| int wc; |
| int goodscore; |
| hash_T hash; |
| hashitem_T *hi; |
| sftword_T *sft; |
| int bc, gc; |
| int limit; |
| |
| /* |
| * It's very well possible that the same soundfold word is found several |
| * times with different scores. Since the following is quite slow only do |
| * the words that have a better score than before. Use a hashtable to |
| * remember the words that have been done. |
| */ |
| hash = hash_hash(goodword); |
| hi = hash_lookup(&slang->sl_sounddone, goodword, hash); |
| if (HASHITEM_EMPTY(hi)) |
| { |
| sft = (sftword_T *)alloc((unsigned)(sizeof(sftword_T) |
| + STRLEN(goodword))); |
| if (sft != NULL) |
| { |
| sft->sft_score = score; |
| STRCPY(sft->sft_word, goodword); |
| hash_add_item(&slang->sl_sounddone, hi, sft->sft_word, hash); |
| } |
| } |
| else |
| { |
| sft = HI2SFT(hi); |
| if (score >= sft->sft_score) |
| return; |
| sft->sft_score = score; |
| } |
| |
| /* |
| * Find the word nr in the soundfold tree. |
| */ |
| sfwordnr = soundfold_find(slang, goodword); |
| if (sfwordnr < 0) |
| { |
| EMSG2(_(e_intern2), "add_sound_suggest()"); |
| return; |
| } |
| |
| /* |
| * go over the list of good words that produce this soundfold word |
| */ |
| nrline = ml_get_buf(slang->sl_sugbuf, (linenr_T)(sfwordnr + 1), FALSE); |
| orgnr = 0; |
| while (*nrline != NUL) |
| { |
| /* The wordnr was stored in a minimal nr of bytes as an offset to the |
| * previous wordnr. */ |
| orgnr += bytes2offset(&nrline); |
| |
| byts = slang->sl_fbyts; |
| idxs = slang->sl_fidxs; |
| |
| /* Lookup the word "orgnr" one of the two tries. */ |
| n = 0; |
| wordcount = 0; |
| for (wlen = 0; wlen < MAXWLEN - 3; ++wlen) |
| { |
| i = 1; |
| if (wordcount == orgnr && byts[n + 1] == NUL) |
| break; /* found end of word */ |
| |
| if (byts[n + 1] == NUL) |
| ++wordcount; |
| |
| /* skip over the NUL bytes */ |
| for ( ; byts[n + i] == NUL; ++i) |
| if (i > byts[n]) /* safety check */ |
| { |
| STRCPY(theword + wlen, "BAD"); |
| wlen += 3; |
| goto badword; |
| } |
| |
| /* One of the siblings must have the word. */ |
| for ( ; i < byts[n]; ++i) |
| { |
| wc = idxs[idxs[n + i]]; /* nr of words under this byte */ |
| if (wordcount + wc > orgnr) |
| break; |
| wordcount += wc; |
| } |
| |
| theword[wlen] = byts[n + i]; |
| n = idxs[n + i]; |
| } |
| badword: |
| theword[wlen] = NUL; |
| |
| /* Go over the possible flags and regions. */ |
| for (; i <= byts[n] && byts[n + i] == NUL; ++i) |
| { |
| char_u cword[MAXWLEN]; |
| char_u *p; |
| int flags = (int)idxs[n + i]; |
| |
| /* Skip words with the NOSUGGEST flag */ |
| if (flags & WF_NOSUGGEST) |
| continue; |
| |
| if (flags & WF_KEEPCAP) |
| { |
| /* Must find the word in the keep-case tree. */ |
| find_keepcap_word(slang, theword, cword); |
| p = cword; |
| } |
| else |
| { |
| flags |= su->su_badflags; |
| if ((flags & WF_CAPMASK) != 0) |
| { |
| /* Need to fix case according to "flags". */ |
| make_case_word(theword, cword, flags); |
| p = cword; |
| } |
| else |
| p = theword; |
| } |
| |
| /* Add the suggestion. */ |
| if (sps_flags & SPS_DOUBLE) |
| { |
| /* Add the suggestion if the score isn't too bad. */ |
| if (score <= su->su_maxscore) |
| add_suggestion(su, &su->su_sga, p, su->su_badlen, |
| score, 0, FALSE, slang, FALSE); |
| } |
| else |
| { |
| /* Add a penalty for words in another region. */ |
| if ((flags & WF_REGION) |
| && (((unsigned)flags >> 16) & lp->lp_region) == 0) |
| goodscore = SCORE_REGION; |
| else |
| goodscore = 0; |
| |
| /* Add a small penalty for changing the first letter from |
| * lower to upper case. Helps for "tath" -> "Kath", which is |
| * less common than "tath" -> "path". Don't do it when the |
| * letter is the same, that has already been counted. */ |
| gc = PTR2CHAR(p); |
| if (SPELL_ISUPPER(gc)) |
| { |
| bc = PTR2CHAR(su->su_badword); |
| if (!SPELL_ISUPPER(bc) |
| && SPELL_TOFOLD(bc) != SPELL_TOFOLD(gc)) |
| goodscore += SCORE_ICASE / 2; |
| } |
| |
| /* Compute the score for the good word. This only does letter |
| * insert/delete/swap/replace. REP items are not considered, |
| * which may make the score a bit higher. |
| * Use a limit for the score to make it work faster. Use |
| * MAXSCORE(), because RESCORE() will change the score. |
| * If the limit is very high then the iterative method is |
| * inefficient, using an array is quicker. */ |
| limit = MAXSCORE(su->su_sfmaxscore - goodscore, score); |
| if (limit > SCORE_LIMITMAX) |
| goodscore += spell_edit_score(slang, su->su_badword, p); |
| else |
| goodscore += spell_edit_score_limit(slang, su->su_badword, |
| p, limit); |
| |
| /* When going over the limit don't bother to do the rest. */ |
| if (goodscore < SCORE_MAXMAX) |
| { |
| /* Give a bonus to words seen before. */ |
| goodscore = score_wordcount_adj(slang, goodscore, p, FALSE); |
| |
| /* Add the suggestion if the score isn't too bad. */ |
| goodscore = RESCORE(goodscore, score); |
| if (goodscore <= su->su_sfmaxscore) |
| add_suggestion(su, &su->su_ga, p, su->su_badlen, |
| goodscore, score, TRUE, slang, TRUE); |
| } |
| } |
| } |
| /* smsg("word %s (%d): %s (%d)", sftword, sftnr, theword, orgnr); */ |
| } |
| } |
| |
| /* |
| * Find word "word" in fold-case tree for "slang" and return the word number. |
| */ |
| static int |
| soundfold_find(slang_T *slang, char_u *word) |
| { |
| idx_T arridx = 0; |
| int len; |
| int wlen = 0; |
| int c; |
| char_u *ptr = word; |
| char_u *byts; |
| idx_T *idxs; |
| int wordnr = 0; |
| |
| byts = slang->sl_sbyts; |
| idxs = slang->sl_sidxs; |
| |
| for (;;) |
| { |
| /* First byte is the number of possible bytes. */ |
| len = byts[arridx++]; |
| |
| /* If the first possible byte is a zero the word could end here. |
| * If the word ends we found the word. If not skip the NUL bytes. */ |
| c = ptr[wlen]; |
| if (byts[arridx] == NUL) |
| { |
| if (c == NUL) |
| break; |
| |
| /* Skip over the zeros, there can be several. */ |
| while (len > 0 && byts[arridx] == NUL) |
| { |
| ++arridx; |
| --len; |
| } |
| if (len == 0) |
| return -1; /* no children, word should have ended here */ |
| ++wordnr; |
| } |
| |
| /* If the word ends we didn't find it. */ |
| if (c == NUL) |
| return -1; |
| |
| /* Perform a binary search in the list of accepted bytes. */ |
| if (c == TAB) /* <Tab> is handled like <Space> */ |
| c = ' '; |
| while (byts[arridx] < c) |
| { |
| /* The word count is in the first idxs[] entry of the child. */ |
| wordnr += idxs[idxs[arridx]]; |
| ++arridx; |
| if (--len == 0) /* end of the bytes, didn't find it */ |
| return -1; |
| } |
| if (byts[arridx] != c) /* didn't find the byte */ |
| return -1; |
| |
| /* Continue at the child (if there is one). */ |
| arridx = idxs[arridx]; |
| ++wlen; |
| |
| /* One space in the good word may stand for several spaces in the |
| * checked word. */ |
| if (c == ' ') |
| while (ptr[wlen] == ' ' || ptr[wlen] == TAB) |
| ++wlen; |
| } |
| |
| return wordnr; |
| } |
| |
| /* |
| * Copy "fword" to "cword", fixing case according to "flags". |
| */ |
| static void |
| make_case_word(char_u *fword, char_u *cword, int flags) |
| { |
| if (flags & WF_ALLCAP) |
| /* Make it all upper-case */ |
| allcap_copy(fword, cword); |
| else if (flags & WF_ONECAP) |
| /* Make the first letter upper-case */ |
| onecap_copy(fword, cword, TRUE); |
| else |
| /* Use goodword as-is. */ |
| STRCPY(cword, fword); |
| } |
| |
| |
| /* |
| * Return TRUE if "c1" and "c2" are similar characters according to the MAP |
| * lines in the .aff file. |
| */ |
| static int |
| similar_chars(slang_T *slang, int c1, int c2) |
| { |
| int m1, m2; |
| #ifdef FEAT_MBYTE |
| char_u buf[MB_MAXBYTES + 1]; |
| hashitem_T *hi; |
| |
| if (c1 >= 256) |
| { |
| buf[mb_char2bytes(c1, buf)] = 0; |
| hi = hash_find(&slang->sl_map_hash, buf); |
| if (HASHITEM_EMPTY(hi)) |
| m1 = 0; |
| else |
| m1 = mb_ptr2char(hi->hi_key + STRLEN(hi->hi_key) + 1); |
| } |
| else |
| #endif |
| m1 = slang->sl_map_array[c1]; |
| if (m1 == 0) |
| return FALSE; |
| |
| |
| #ifdef FEAT_MBYTE |
| if (c2 >= 256) |
| { |
| buf[mb_char2bytes(c2, buf)] = 0; |
| hi = hash_find(&slang->sl_map_hash, buf); |
| if (HASHITEM_EMPTY(hi)) |
| m2 = 0; |
| else |
| m2 = mb_ptr2char(hi->hi_key + STRLEN(hi->hi_key) + 1); |
| } |
| else |
| #endif |
| m2 = slang->sl_map_array[c2]; |
| |
| return m1 == m2; |
| } |
| |
| /* |
| * Add a suggestion to the list of suggestions. |
| * For a suggestion that is already in the list the lowest score is remembered. |
| */ |
| static void |
| add_suggestion( |
| suginfo_T *su, |
| garray_T *gap, /* either su_ga or su_sga */ |
| char_u *goodword, |
| int badlenarg, /* len of bad word replaced with "goodword" */ |
| int score, |
| int altscore, |
| int had_bonus, /* value for st_had_bonus */ |
| slang_T *slang, /* language for sound folding */ |
| int maxsf) /* su_maxscore applies to soundfold score, |
| su_sfmaxscore to the total score. */ |
| { |
| int goodlen; /* len of goodword changed */ |
| int badlen; /* len of bad word changed */ |
| suggest_T *stp; |
| suggest_T new_sug; |
| int i; |
| char_u *pgood, *pbad; |
| |
| /* Minimize "badlen" for consistency. Avoids that changing "the the" to |
| * "thee the" is added next to changing the first "the" the "thee". */ |
| pgood = goodword + STRLEN(goodword); |
| pbad = su->su_badptr + badlenarg; |
| for (;;) |
| { |
| goodlen = (int)(pgood - goodword); |
| badlen = (int)(pbad - su->su_badptr); |
| if (goodlen <= 0 || badlen <= 0) |
| break; |
| mb_ptr_back(goodword, pgood); |
| mb_ptr_back(su->su_badptr, pbad); |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| if (mb_ptr2char(pgood) != mb_ptr2char(pbad)) |
| break; |
| } |
| else |
| #endif |
| if (*pgood != *pbad) |
| break; |
| } |
| |
| if (badlen == 0 && goodlen == 0) |
| /* goodword doesn't change anything; may happen for "the the" changing |
| * the first "the" to itself. */ |
| return; |
| |
| if (gap->ga_len == 0) |
| i = -1; |
| else |
| { |
| /* Check if the word is already there. Also check the length that is |
| * being replaced "thes," -> "these" is a different suggestion from |
| * "thes" -> "these". */ |
| stp = &SUG(*gap, 0); |
| for (i = gap->ga_len; --i >= 0; ++stp) |
| if (stp->st_wordlen == goodlen |
| && stp->st_orglen == badlen |
| && STRNCMP(stp->st_word, goodword, goodlen) == 0) |
| { |
| /* |
| * Found it. Remember the word with the lowest score. |
| */ |
| if (stp->st_slang == NULL) |
| stp->st_slang = slang; |
| |
| new_sug.st_score = score; |
| new_sug.st_altscore = altscore; |
| new_sug.st_had_bonus = had_bonus; |
| |
| if (stp->st_had_bonus != had_bonus) |
| { |
| /* Only one of the two had the soundalike score computed. |
| * Need to do that for the other one now, otherwise the |
| * scores can't be compared. This happens because |
| * suggest_try_change() doesn't compute the soundalike |
| * word to keep it fast, while some special methods set |
| * the soundalike score to zero. */ |
| if (had_bonus) |
| rescore_one(su, stp); |
| else |
| { |
| new_sug.st_word = stp->st_word; |
| new_sug.st_wordlen = stp->st_wordlen; |
| new_sug.st_slang = stp->st_slang; |
| new_sug.st_orglen = badlen; |
| rescore_one(su, &new_sug); |
| } |
| } |
| |
| if (stp->st_score > new_sug.st_score) |
| { |
| stp->st_score = new_sug.st_score; |
| stp->st_altscore = new_sug.st_altscore; |
| stp->st_had_bonus = new_sug.st_had_bonus; |
| } |
| break; |
| } |
| } |
| |
| if (i < 0 && ga_grow(gap, 1) == OK) |
| { |
| /* Add a suggestion. */ |
| stp = &SUG(*gap, gap->ga_len); |
| stp->st_word = vim_strnsave(goodword, goodlen); |
| if (stp->st_word != NULL) |
| { |
| stp->st_wordlen = goodlen; |
| stp->st_score = score; |
| stp->st_altscore = altscore; |
| stp->st_had_bonus = had_bonus; |
| stp->st_orglen = badlen; |
| stp->st_slang = slang; |
| ++gap->ga_len; |
| |
| /* If we have too many suggestions now, sort the list and keep |
| * the best suggestions. */ |
| if (gap->ga_len > SUG_MAX_COUNT(su)) |
| { |
| if (maxsf) |
| su->su_sfmaxscore = cleanup_suggestions(gap, |
| su->su_sfmaxscore, SUG_CLEAN_COUNT(su)); |
| else |
| su->su_maxscore = cleanup_suggestions(gap, |
| su->su_maxscore, SUG_CLEAN_COUNT(su)); |
| } |
| } |
| } |
| } |
| |
| /* |
| * Suggestions may in fact be flagged as errors. Esp. for banned words and |
| * for split words, such as "the the". Remove these from the list here. |
| */ |
| static void |
| check_suggestions( |
| suginfo_T *su, |
| garray_T *gap) /* either su_ga or su_sga */ |
| { |
| suggest_T *stp; |
| int i; |
| char_u longword[MAXWLEN + 1]; |
| int len; |
| hlf_T attr; |
| |
| stp = &SUG(*gap, 0); |
| for (i = gap->ga_len - 1; i >= 0; --i) |
| { |
| /* Need to append what follows to check for "the the". */ |
| vim_strncpy(longword, stp[i].st_word, MAXWLEN); |
| len = stp[i].st_wordlen; |
| vim_strncpy(longword + len, su->su_badptr + stp[i].st_orglen, |
| MAXWLEN - len); |
| attr = HLF_COUNT; |
| (void)spell_check(curwin, longword, &attr, NULL, FALSE); |
| if (attr != HLF_COUNT) |
| { |
| /* Remove this entry. */ |
| vim_free(stp[i].st_word); |
| --gap->ga_len; |
| if (i < gap->ga_len) |
| mch_memmove(stp + i, stp + i + 1, |
| sizeof(suggest_T) * (gap->ga_len - i)); |
| } |
| } |
| } |
| |
| |
| /* |
| * Add a word to be banned. |
| */ |
| static void |
| add_banned( |
| suginfo_T *su, |
| char_u *word) |
| { |
| char_u *s; |
| hash_T hash; |
| hashitem_T *hi; |
| |
| hash = hash_hash(word); |
| hi = hash_lookup(&su->su_banned, word, hash); |
| if (HASHITEM_EMPTY(hi)) |
| { |
| s = vim_strsave(word); |
| if (s != NULL) |
| hash_add_item(&su->su_banned, hi, s, hash); |
| } |
| } |
| |
| /* |
| * Recompute the score for all suggestions if sound-folding is possible. This |
| * is slow, thus only done for the final results. |
| */ |
| static void |
| rescore_suggestions(suginfo_T *su) |
| { |
| int i; |
| |
| if (su->su_sallang != NULL) |
| for (i = 0; i < su->su_ga.ga_len; ++i) |
| rescore_one(su, &SUG(su->su_ga, i)); |
| } |
| |
| /* |
| * Recompute the score for one suggestion if sound-folding is possible. |
| */ |
| static void |
| rescore_one(suginfo_T *su, suggest_T *stp) |
| { |
| slang_T *slang = stp->st_slang; |
| char_u sal_badword[MAXWLEN]; |
| char_u *p; |
| |
| /* Only rescore suggestions that have no sal score yet and do have a |
| * language. */ |
| if (slang != NULL && slang->sl_sal.ga_len > 0 && !stp->st_had_bonus) |
| { |
| if (slang == su->su_sallang) |
| p = su->su_sal_badword; |
| else |
| { |
| spell_soundfold(slang, su->su_fbadword, TRUE, sal_badword); |
| p = sal_badword; |
| } |
| |
| stp->st_altscore = stp_sal_score(stp, su, slang, p); |
| if (stp->st_altscore == SCORE_MAXMAX) |
| stp->st_altscore = SCORE_BIG; |
| stp->st_score = RESCORE(stp->st_score, stp->st_altscore); |
| stp->st_had_bonus = TRUE; |
| } |
| } |
| |
| static int |
| #ifdef __BORLANDC__ |
| _RTLENTRYF |
| #endif |
| sug_compare(const void *s1, const void *s2); |
| |
| /* |
| * Function given to qsort() to sort the suggestions on st_score. |
| * First on "st_score", then "st_altscore" then alphabetically. |
| */ |
| static int |
| #ifdef __BORLANDC__ |
| _RTLENTRYF |
| #endif |
| sug_compare(const void *s1, const void *s2) |
| { |
| suggest_T *p1 = (suggest_T *)s1; |
| suggest_T *p2 = (suggest_T *)s2; |
| int n = p1->st_score - p2->st_score; |
| |
| if (n == 0) |
| { |
| n = p1->st_altscore - p2->st_altscore; |
| if (n == 0) |
| n = STRICMP(p1->st_word, p2->st_word); |
| } |
| return n; |
| } |
| |
| /* |
| * Cleanup the suggestions: |
| * - Sort on score. |
| * - Remove words that won't be displayed. |
| * Returns the maximum score in the list or "maxscore" unmodified. |
| */ |
| static int |
| cleanup_suggestions( |
| garray_T *gap, |
| int maxscore, |
| int keep) /* nr of suggestions to keep */ |
| { |
| suggest_T *stp = &SUG(*gap, 0); |
| int i; |
| |
| /* Sort the list. */ |
| qsort(gap->ga_data, (size_t)gap->ga_len, sizeof(suggest_T), sug_compare); |
| |
| /* Truncate the list to the number of suggestions that will be displayed. */ |
| if (gap->ga_len > keep) |
| { |
| for (i = keep; i < gap->ga_len; ++i) |
| vim_free(stp[i].st_word); |
| gap->ga_len = keep; |
| return stp[keep - 1].st_score; |
| } |
| return maxscore; |
| } |
| |
| #if defined(FEAT_EVAL) || defined(PROTO) |
| /* |
| * Soundfold a string, for soundfold(). |
| * Result is in allocated memory, NULL for an error. |
| */ |
| char_u * |
| eval_soundfold(char_u *word) |
| { |
| langp_T *lp; |
| char_u sound[MAXWLEN]; |
| int lpi; |
| |
| if (curwin->w_p_spell && *curwin->w_s->b_p_spl != NUL) |
| /* Use the sound-folding of the first language that supports it. */ |
| for (lpi = 0; lpi < curwin->w_s->b_langp.ga_len; ++lpi) |
| { |
| lp = LANGP_ENTRY(curwin->w_s->b_langp, lpi); |
| if (lp->lp_slang->sl_sal.ga_len > 0) |
| { |
| /* soundfold the word */ |
| spell_soundfold(lp->lp_slang, word, FALSE, sound); |
| return vim_strsave(sound); |
| } |
| } |
| |
| /* No language with sound folding, return word as-is. */ |
| return vim_strsave(word); |
| } |
| #endif |
| |
| /* |
| * Turn "inword" into its sound-a-like equivalent in "res[MAXWLEN]". |
| * |
| * There are many ways to turn a word into a sound-a-like representation. The |
| * oldest is Soundex (1918!). A nice overview can be found in "Approximate |
| * swedish name matching - survey and test of different algorithms" by Klas |
| * Erikson. |
| * |
| * We support two methods: |
| * 1. SOFOFROM/SOFOTO do a simple character mapping. |
| * 2. SAL items define a more advanced sound-folding (and much slower). |
| */ |
| void |
| spell_soundfold( |
| slang_T *slang, |
| char_u *inword, |
| int folded, /* "inword" is already case-folded */ |
| char_u *res) |
| { |
| char_u fword[MAXWLEN]; |
| char_u *word; |
| |
| if (slang->sl_sofo) |
| /* SOFOFROM and SOFOTO used */ |
| spell_soundfold_sofo(slang, inword, res); |
| else |
| { |
| /* SAL items used. Requires the word to be case-folded. */ |
| if (folded) |
| word = inword; |
| else |
| { |
| (void)spell_casefold(inword, (int)STRLEN(inword), fword, MAXWLEN); |
| word = fword; |
| } |
| |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| spell_soundfold_wsal(slang, word, res); |
| else |
| #endif |
| spell_soundfold_sal(slang, word, res); |
| } |
| } |
| |
| /* |
| * Perform sound folding of "inword" into "res" according to SOFOFROM and |
| * SOFOTO lines. |
| */ |
| static void |
| spell_soundfold_sofo(slang_T *slang, char_u *inword, char_u *res) |
| { |
| char_u *s; |
| int ri = 0; |
| int c; |
| |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| int prevc = 0; |
| int *ip; |
| |
| /* The sl_sal_first[] table contains the translation for chars up to |
| * 255, sl_sal the rest. */ |
| for (s = inword; *s != NUL; ) |
| { |
| c = mb_cptr2char_adv(&s); |
| if (enc_utf8 ? utf_class(c) == 0 : vim_iswhite(c)) |
| c = ' '; |
| else if (c < 256) |
| c = slang->sl_sal_first[c]; |
| else |
| { |
| ip = ((int **)slang->sl_sal.ga_data)[c & 0xff]; |
| if (ip == NULL) /* empty list, can't match */ |
| c = NUL; |
| else |
| for (;;) /* find "c" in the list */ |
| { |
| if (*ip == 0) /* not found */ |
| { |
| c = NUL; |
| break; |
| } |
| if (*ip == c) /* match! */ |
| { |
| c = ip[1]; |
| break; |
| } |
| ip += 2; |
| } |
| } |
| |
| if (c != NUL && c != prevc) |
| { |
| ri += mb_char2bytes(c, res + ri); |
| if (ri + MB_MAXBYTES > MAXWLEN) |
| break; |
| prevc = c; |
| } |
| } |
| } |
| else |
| #endif |
| { |
| /* The sl_sal_first[] table contains the translation. */ |
| for (s = inword; (c = *s) != NUL; ++s) |
| { |
| if (vim_iswhite(c)) |
| c = ' '; |
| else |
| c = slang->sl_sal_first[c]; |
| if (c != NUL && (ri == 0 || res[ri - 1] != c)) |
| res[ri++] = c; |
| } |
| } |
| |
| res[ri] = NUL; |
| } |
| |
| static void |
| spell_soundfold_sal(slang_T *slang, char_u *inword, char_u *res) |
| { |
| salitem_T *smp; |
| char_u word[MAXWLEN]; |
| char_u *s = inword; |
| char_u *t; |
| char_u *pf; |
| int i, j, z; |
| int reslen; |
| int n, k = 0; |
| int z0; |
| int k0; |
| int n0; |
| int c; |
| int pri; |
| int p0 = -333; |
| int c0; |
| |
| /* Remove accents, if wanted. We actually remove all non-word characters. |
| * But keep white space. We need a copy, the word may be changed here. */ |
| if (slang->sl_rem_accents) |
| { |
| t = word; |
| while (*s != NUL) |
| { |
| if (vim_iswhite(*s)) |
| { |
| *t++ = ' '; |
| s = skipwhite(s); |
| } |
| else |
| { |
| if (spell_iswordp_nmw(s, curwin)) |
| *t++ = *s; |
| ++s; |
| } |
| } |
| *t = NUL; |
| } |
| else |
| vim_strncpy(word, s, MAXWLEN - 1); |
| |
| smp = (salitem_T *)slang->sl_sal.ga_data; |
| |
| /* |
| * This comes from Aspell phonet.cpp. Converted from C++ to C. |
| * Changed to keep spaces. |
| */ |
| i = reslen = z = 0; |
| while ((c = word[i]) != NUL) |
| { |
| /* Start with the first rule that has the character in the word. */ |
| n = slang->sl_sal_first[c]; |
| z0 = 0; |
| |
| if (n >= 0) |
| { |
| /* check all rules for the same letter */ |
| for (; (s = smp[n].sm_lead)[0] == c; ++n) |
| { |
| /* Quickly skip entries that don't match the word. Most |
| * entries are less then three chars, optimize for that. */ |
| k = smp[n].sm_leadlen; |
| if (k > 1) |
| { |
| if (word[i + 1] != s[1]) |
| continue; |
| if (k > 2) |
| { |
| for (j = 2; j < k; ++j) |
| if (word[i + j] != s[j]) |
| break; |
| if (j < k) |
| continue; |
| } |
| } |
| |
| if ((pf = smp[n].sm_oneof) != NULL) |
| { |
| /* Check for match with one of the chars in "sm_oneof". */ |
| while (*pf != NUL && *pf != word[i + k]) |
| ++pf; |
| if (*pf == NUL) |
| continue; |
| ++k; |
| } |
| s = smp[n].sm_rules; |
| pri = 5; /* default priority */ |
| |
| p0 = *s; |
| k0 = k; |
| while (*s == '-' && k > 1) |
| { |
| k--; |
| s++; |
| } |
| if (*s == '<') |
| s++; |
| if (VIM_ISDIGIT(*s)) |
| { |
| /* determine priority */ |
| pri = *s - '0'; |
| s++; |
| } |
| if (*s == '^' && *(s + 1) == '^') |
| s++; |
| |
| if (*s == NUL |
| || (*s == '^' |
| && (i == 0 || !(word[i - 1] == ' ' |
| || spell_iswordp(word + i - 1, curwin))) |
| && (*(s + 1) != '$' |
| || (!spell_iswordp(word + i + k0, curwin)))) |
| || (*s == '$' && i > 0 |
| && spell_iswordp(word + i - 1, curwin) |
| && (!spell_iswordp(word + i + k0, curwin)))) |
| { |
| /* search for followup rules, if: */ |
| /* followup and k > 1 and NO '-' in searchstring */ |
| c0 = word[i + k - 1]; |
| n0 = slang->sl_sal_first[c0]; |
| |
| if (slang->sl_followup && k > 1 && n0 >= 0 |
| && p0 != '-' && word[i + k] != NUL) |
| { |
| /* test follow-up rule for "word[i + k]" */ |
| for ( ; (s = smp[n0].sm_lead)[0] == c0; ++n0) |
| { |
| /* Quickly skip entries that don't match the word. |
| * */ |
| k0 = smp[n0].sm_leadlen; |
| if (k0 > 1) |
| { |
| if (word[i + k] != s[1]) |
| continue; |
| if (k0 > 2) |
| { |
| pf = word + i + k + 1; |
| for (j = 2; j < k0; ++j) |
| if (*pf++ != s[j]) |
| break; |
| if (j < k0) |
| continue; |
| } |
| } |
| k0 += k - 1; |
| |
| if ((pf = smp[n0].sm_oneof) != NULL) |
| { |
| /* Check for match with one of the chars in |
| * "sm_oneof". */ |
| while (*pf != NUL && *pf != word[i + k0]) |
| ++pf; |
| if (*pf == NUL) |
| continue; |
| ++k0; |
| } |
| |
| p0 = 5; |
| s = smp[n0].sm_rules; |
| while (*s == '-') |
| { |
| /* "k0" gets NOT reduced because |
| * "if (k0 == k)" */ |
| s++; |
| } |
| if (*s == '<') |
| s++; |
| if (VIM_ISDIGIT(*s)) |
| { |
| p0 = *s - '0'; |
| s++; |
| } |
| |
| if (*s == NUL |
| /* *s == '^' cuts */ |
| || (*s == '$' |
| && !spell_iswordp(word + i + k0, |
| curwin))) |
| { |
| if (k0 == k) |
| /* this is just a piece of the string */ |
| continue; |
| |
| if (p0 < pri) |
| /* priority too low */ |
| continue; |
| /* rule fits; stop search */ |
| break; |
| } |
| } |
| |
| if (p0 >= pri && smp[n0].sm_lead[0] == c0) |
| continue; |
| } |
| |
| /* replace string */ |
| s = smp[n].sm_to; |
| if (s == NULL) |
| s = (char_u *)""; |
| pf = smp[n].sm_rules; |
| p0 = (vim_strchr(pf, '<') != NULL) ? 1 : 0; |
| if (p0 == 1 && z == 0) |
| { |
| /* rule with '<' is used */ |
| if (reslen > 0 && *s != NUL && (res[reslen - 1] == c |
| || res[reslen - 1] == *s)) |
| reslen--; |
| z0 = 1; |
| z = 1; |
| k0 = 0; |
| while (*s != NUL && word[i + k0] != NUL) |
| { |
| word[i + k0] = *s; |
| k0++; |
| s++; |
| } |
| if (k > k0) |
| STRMOVE(word + i + k0, word + i + k); |
| |
| /* new "actual letter" */ |
| c = word[i]; |
| } |
| else |
| { |
| /* no '<' rule used */ |
| i += k - 1; |
| z = 0; |
| while (*s != NUL && s[1] != NUL && reslen < MAXWLEN) |
| { |
| if (reslen == 0 || res[reslen - 1] != *s) |
| res[reslen++] = *s; |
| s++; |
| } |
| /* new "actual letter" */ |
| c = *s; |
| if (strstr((char *)pf, "^^") != NULL) |
| { |
| if (c != NUL) |
| res[reslen++] = c; |
| STRMOVE(word, word + i + 1); |
| i = 0; |
| z0 = 1; |
| } |
| } |
| break; |
| } |
| } |
| } |
| else if (vim_iswhite(c)) |
| { |
| c = ' '; |
| k = 1; |
| } |
| |
| if (z0 == 0) |
| { |
| if (k && !p0 && reslen < MAXWLEN && c != NUL |
| && (!slang->sl_collapse || reslen == 0 |
| || res[reslen - 1] != c)) |
| /* condense only double letters */ |
| res[reslen++] = c; |
| |
| i++; |
| z = 0; |
| k = 0; |
| } |
| } |
| |
| res[reslen] = NUL; |
| } |
| |
| #ifdef FEAT_MBYTE |
| /* |
| * Turn "inword" into its sound-a-like equivalent in "res[MAXWLEN]". |
| * Multi-byte version of spell_soundfold(). |
| */ |
| static void |
| spell_soundfold_wsal(slang_T *slang, char_u *inword, char_u *res) |
| { |
| salitem_T *smp = (salitem_T *)slang->sl_sal.ga_data; |
| int word[MAXWLEN]; |
| int wres[MAXWLEN]; |
| int l; |
| char_u *s; |
| int *ws; |
| char_u *t; |
| int *pf; |
| int i, j, z; |
| int reslen; |
| int n, k = 0; |
| int z0; |
| int k0; |
| int n0; |
| int c; |
| int pri; |
| int p0 = -333; |
| int c0; |
| int did_white = FALSE; |
| int wordlen; |
| |
| |
| /* |
| * Convert the multi-byte string to a wide-character string. |
| * Remove accents, if wanted. We actually remove all non-word characters. |
| * But keep white space. |
| */ |
| wordlen = 0; |
| for (s = inword; *s != NUL; ) |
| { |
| t = s; |
| c = mb_cptr2char_adv(&s); |
| if (slang->sl_rem_accents) |
| { |
| if (enc_utf8 ? utf_class(c) == 0 : vim_iswhite(c)) |
| { |
| if (did_white) |
| continue; |
| c = ' '; |
| did_white = TRUE; |
| } |
| else |
| { |
| did_white = FALSE; |
| if (!spell_iswordp_nmw(t, curwin)) |
| continue; |
| } |
| } |
| word[wordlen++] = c; |
| } |
| word[wordlen] = NUL; |
| |
| /* |
| * This algorithm comes from Aspell phonet.cpp. |
| * Converted from C++ to C. Added support for multi-byte chars. |
| * Changed to keep spaces. |
| */ |
| i = reslen = z = 0; |
| while ((c = word[i]) != NUL) |
| { |
| /* Start with the first rule that has the character in the word. */ |
| n = slang->sl_sal_first[c & 0xff]; |
| z0 = 0; |
| |
| if (n >= 0) |
| { |
| /* Check all rules for the same index byte. |
| * If c is 0x300 need extra check for the end of the array, as |
| * (c & 0xff) is NUL. */ |
| for (; ((ws = smp[n].sm_lead_w)[0] & 0xff) == (c & 0xff) |
| && ws[0] != NUL; ++n) |
| { |
| /* Quickly skip entries that don't match the word. Most |
| * entries are less then three chars, optimize for that. */ |
| if (c != ws[0]) |
| continue; |
| k = smp[n].sm_leadlen; |
| if (k > 1) |
| { |
| if (word[i + 1] != ws[1]) |
| continue; |
| if (k > 2) |
| { |
| for (j = 2; j < k; ++j) |
| if (word[i + j] != ws[j]) |
| break; |
| if (j < k) |
| continue; |
| } |
| } |
| |
| if ((pf = smp[n].sm_oneof_w) != NULL) |
| { |
| /* Check for match with one of the chars in "sm_oneof". */ |
| while (*pf != NUL && *pf != word[i + k]) |
| ++pf; |
| if (*pf == NUL) |
| continue; |
| ++k; |
| } |
| s = smp[n].sm_rules; |
| pri = 5; /* default priority */ |
| |
| p0 = *s; |
| k0 = k; |
| while (*s == '-' && k > 1) |
| { |
| k--; |
| s++; |
| } |
| if (*s == '<') |
| s++; |
| if (VIM_ISDIGIT(*s)) |
| { |
| /* determine priority */ |
| pri = *s - '0'; |
| s++; |
| } |
| if (*s == '^' && *(s + 1) == '^') |
| s++; |
| |
| if (*s == NUL |
| || (*s == '^' |
| && (i == 0 || !(word[i - 1] == ' ' |
| || spell_iswordp_w(word + i - 1, curwin))) |
| && (*(s + 1) != '$' |
| || (!spell_iswordp_w(word + i + k0, curwin)))) |
| || (*s == '$' && i > 0 |
| && spell_iswordp_w(word + i - 1, curwin) |
| && (!spell_iswordp_w(word + i + k0, curwin)))) |
| { |
| /* search for followup rules, if: */ |
| /* followup and k > 1 and NO '-' in searchstring */ |
| c0 = word[i + k - 1]; |
| n0 = slang->sl_sal_first[c0 & 0xff]; |
| |
| if (slang->sl_followup && k > 1 && n0 >= 0 |
| && p0 != '-' && word[i + k] != NUL) |
| { |
| /* Test follow-up rule for "word[i + k]"; loop over |
| * all entries with the same index byte. */ |
| for ( ; ((ws = smp[n0].sm_lead_w)[0] & 0xff) |
| == (c0 & 0xff); ++n0) |
| { |
| /* Quickly skip entries that don't match the word. |
| */ |
| if (c0 != ws[0]) |
| continue; |
| k0 = smp[n0].sm_leadlen; |
| if (k0 > 1) |
| { |
| if (word[i + k] != ws[1]) |
| continue; |
| if (k0 > 2) |
| { |
| pf = word + i + k + 1; |
| for (j = 2; j < k0; ++j) |
| if (*pf++ != ws[j]) |
| break; |
| if (j < k0) |
| continue; |
| } |
| } |
| k0 += k - 1; |
| |
| if ((pf = smp[n0].sm_oneof_w) != NULL) |
| { |
| /* Check for match with one of the chars in |
| * "sm_oneof". */ |
| while (*pf != NUL && *pf != word[i + k0]) |
| ++pf; |
| if (*pf == NUL) |
| continue; |
| ++k0; |
| } |
| |
| p0 = 5; |
| s = smp[n0].sm_rules; |
| while (*s == '-') |
| { |
| /* "k0" gets NOT reduced because |
| * "if (k0 == k)" */ |
| s++; |
| } |
| if (*s == '<') |
| s++; |
| if (VIM_ISDIGIT(*s)) |
| { |
| p0 = *s - '0'; |
| s++; |
| } |
| |
| if (*s == NUL |
| /* *s == '^' cuts */ |
| || (*s == '$' |
| && !spell_iswordp_w(word + i + k0, |
| curwin))) |
| { |
| if (k0 == k) |
| /* this is just a piece of the string */ |
| continue; |
| |
| if (p0 < pri) |
| /* priority too low */ |
| continue; |
| /* rule fits; stop search */ |
| break; |
| } |
| } |
| |
| if (p0 >= pri && (smp[n0].sm_lead_w[0] & 0xff) |
| == (c0 & 0xff)) |
| continue; |
| } |
| |
| /* replace string */ |
| ws = smp[n].sm_to_w; |
| s = smp[n].sm_rules; |
| p0 = (vim_strchr(s, '<') != NULL) ? 1 : 0; |
| if (p0 == 1 && z == 0) |
| { |
| /* rule with '<' is used */ |
| if (reslen > 0 && ws != NULL && *ws != NUL |
| && (wres[reslen - 1] == c |
| || wres[reslen - 1] == *ws)) |
| reslen--; |
| z0 = 1; |
| z = 1; |
| k0 = 0; |
| if (ws != NULL) |
| while (*ws != NUL && word[i + k0] != NUL) |
| { |
| word[i + k0] = *ws; |
| k0++; |
| ws++; |
| } |
| if (k > k0) |
| mch_memmove(word + i + k0, word + i + k, |
| sizeof(int) * (wordlen - (i + k) + 1)); |
| |
| /* new "actual letter" */ |
| c = word[i]; |
| } |
| else |
| { |
| /* no '<' rule used */ |
| i += k - 1; |
| z = 0; |
| if (ws != NULL) |
| while (*ws != NUL && ws[1] != NUL |
| && reslen < MAXWLEN) |
| { |
| if (reslen == 0 || wres[reslen - 1] != *ws) |
| wres[reslen++] = *ws; |
| ws++; |
| } |
| /* new "actual letter" */ |
| if (ws == NULL) |
| c = NUL; |
| else |
| c = *ws; |
| if (strstr((char *)s, "^^") != NULL) |
| { |
| if (c != NUL) |
| wres[reslen++] = c; |
| mch_memmove(word, word + i + 1, |
| sizeof(int) * (wordlen - (i + 1) + 1)); |
| i = 0; |
| z0 = 1; |
| } |
| } |
| break; |
| } |
| } |
| } |
| else if (vim_iswhite(c)) |
| { |
| c = ' '; |
| k = 1; |
| } |
| |
| if (z0 == 0) |
| { |
| if (k && !p0 && reslen < MAXWLEN && c != NUL |
| && (!slang->sl_collapse || reslen == 0 |
| || wres[reslen - 1] != c)) |
| /* condense only double letters */ |
| wres[reslen++] = c; |
| |
| i++; |
| z = 0; |
| k = 0; |
| } |
| } |
| |
| /* Convert wide characters in "wres" to a multi-byte string in "res". */ |
| l = 0; |
| for (n = 0; n < reslen; ++n) |
| { |
| l += mb_char2bytes(wres[n], res + l); |
| if (l + MB_MAXBYTES > MAXWLEN) |
| break; |
| } |
| res[l] = NUL; |
| } |
| #endif |
| |
| /* |
| * Compute a score for two sound-a-like words. |
| * This permits up to two inserts/deletes/swaps/etc. to keep things fast. |
| * Instead of a generic loop we write out the code. That keeps it fast by |
| * avoiding checks that will not be possible. |
| */ |
| static int |
| soundalike_score( |
| char_u *goodstart, /* sound-folded good word */ |
| char_u *badstart) /* sound-folded bad word */ |
| { |
| char_u *goodsound = goodstart; |
| char_u *badsound = badstart; |
| int goodlen; |
| int badlen; |
| int n; |
| char_u *pl, *ps; |
| char_u *pl2, *ps2; |
| int score = 0; |
| |
| /* Adding/inserting "*" at the start (word starts with vowel) shouldn't be |
| * counted so much, vowels halfway the word aren't counted at all. */ |
| if ((*badsound == '*' || *goodsound == '*') && *badsound != *goodsound) |
| { |
| if ((badsound[0] == NUL && goodsound[1] == NUL) |
| || (goodsound[0] == NUL && badsound[1] == NUL)) |
| /* changing word with vowel to word without a sound */ |
| return SCORE_DEL; |
| if (badsound[0] == NUL || goodsound[0] == NUL) |
| /* more than two changes */ |
| return SCORE_MAXMAX; |
| |
| if (badsound[1] == goodsound[1] |
| || (badsound[1] != NUL |
| && goodsound[1] != NUL |
| && badsound[2] == goodsound[2])) |
| { |
| /* handle like a substitute */ |
| } |
| else |
| { |
| score = 2 * SCORE_DEL / 3; |
| if (*badsound == '*') |
| ++badsound; |
| else |
| ++goodsound; |
| } |
| } |
| |
| goodlen = (int)STRLEN(goodsound); |
| badlen = (int)STRLEN(badsound); |
| |
| /* Return quickly if the lengths are too different to be fixed by two |
| * changes. */ |
| n = goodlen - badlen; |
| if (n < -2 || n > 2) |
| return SCORE_MAXMAX; |
| |
| if (n > 0) |
| { |
| pl = goodsound; /* goodsound is longest */ |
| ps = badsound; |
| } |
| else |
| { |
| pl = badsound; /* badsound is longest */ |
| ps = goodsound; |
| } |
| |
| /* Skip over the identical part. */ |
| while (*pl == *ps && *pl != NUL) |
| { |
| ++pl; |
| ++ps; |
| } |
| |
| switch (n) |
| { |
| case -2: |
| case 2: |
| /* |
| * Must delete two characters from "pl". |
| */ |
| ++pl; /* first delete */ |
| while (*pl == *ps) |
| { |
| ++pl; |
| ++ps; |
| } |
| /* strings must be equal after second delete */ |
| if (STRCMP(pl + 1, ps) == 0) |
| return score + SCORE_DEL * 2; |
| |
| /* Failed to compare. */ |
| break; |
| |
| case -1: |
| case 1: |
| /* |
| * Minimal one delete from "pl" required. |
| */ |
| |
| /* 1: delete */ |
| pl2 = pl + 1; |
| ps2 = ps; |
| while (*pl2 == *ps2) |
| { |
| if (*pl2 == NUL) /* reached the end */ |
| return score + SCORE_DEL; |
| ++pl2; |
| ++ps2; |
| } |
| |
| /* 2: delete then swap, then rest must be equal */ |
| if (pl2[0] == ps2[1] && pl2[1] == ps2[0] |
| && STRCMP(pl2 + 2, ps2 + 2) == 0) |
| return score + SCORE_DEL + SCORE_SWAP; |
| |
| /* 3: delete then substitute, then the rest must be equal */ |
| if (STRCMP(pl2 + 1, ps2 + 1) == 0) |
| return score + SCORE_DEL + SCORE_SUBST; |
| |
| /* 4: first swap then delete */ |
| if (pl[0] == ps[1] && pl[1] == ps[0]) |
| { |
| pl2 = pl + 2; /* swap, skip two chars */ |
| ps2 = ps + 2; |
| while (*pl2 == *ps2) |
| { |
| ++pl2; |
| ++ps2; |
| } |
| /* delete a char and then strings must be equal */ |
| if (STRCMP(pl2 + 1, ps2) == 0) |
| return score + SCORE_SWAP + SCORE_DEL; |
| } |
| |
| /* 5: first substitute then delete */ |
| pl2 = pl + 1; /* substitute, skip one char */ |
| ps2 = ps + 1; |
| while (*pl2 == *ps2) |
| { |
| ++pl2; |
| ++ps2; |
| } |
| /* delete a char and then strings must be equal */ |
| if (STRCMP(pl2 + 1, ps2) == 0) |
| return score + SCORE_SUBST + SCORE_DEL; |
| |
| /* Failed to compare. */ |
| break; |
| |
| case 0: |
| /* |
| * Lengths are equal, thus changes must result in same length: An |
| * insert is only possible in combination with a delete. |
| * 1: check if for identical strings |
| */ |
| if (*pl == NUL) |
| return score; |
| |
| /* 2: swap */ |
| if (pl[0] == ps[1] && pl[1] == ps[0]) |
| { |
| pl2 = pl + 2; /* swap, skip two chars */ |
| ps2 = ps + 2; |
| while (*pl2 == *ps2) |
| { |
| if (*pl2 == NUL) /* reached the end */ |
| return score + SCORE_SWAP; |
| ++pl2; |
| ++ps2; |
| } |
| /* 3: swap and swap again */ |
| if (pl2[0] == ps2[1] && pl2[1] == ps2[0] |
| && STRCMP(pl2 + 2, ps2 + 2) == 0) |
| return score + SCORE_SWAP + SCORE_SWAP; |
| |
| /* 4: swap and substitute */ |
| if (STRCMP(pl2 + 1, ps2 + 1) == 0) |
| return score + SCORE_SWAP + SCORE_SUBST; |
| } |
| |
| /* 5: substitute */ |
| pl2 = pl + 1; |
| ps2 = ps + 1; |
| while (*pl2 == *ps2) |
| { |
| if (*pl2 == NUL) /* reached the end */ |
| return score + SCORE_SUBST; |
| ++pl2; |
| ++ps2; |
| } |
| |
| /* 6: substitute and swap */ |
| if (pl2[0] == ps2[1] && pl2[1] == ps2[0] |
| && STRCMP(pl2 + 2, ps2 + 2) == 0) |
| return score + SCORE_SUBST + SCORE_SWAP; |
| |
| /* 7: substitute and substitute */ |
| if (STRCMP(pl2 + 1, ps2 + 1) == 0) |
| return score + SCORE_SUBST + SCORE_SUBST; |
| |
| /* 8: insert then delete */ |
| pl2 = pl; |
| ps2 = ps + 1; |
| while (*pl2 == *ps2) |
| { |
| ++pl2; |
| ++ps2; |
| } |
| if (STRCMP(pl2 + 1, ps2) == 0) |
| return score + SCORE_INS + SCORE_DEL; |
| |
| /* 9: delete then insert */ |
| pl2 = pl + 1; |
| ps2 = ps; |
| while (*pl2 == *ps2) |
| { |
| ++pl2; |
| ++ps2; |
| } |
| if (STRCMP(pl2, ps2 + 1) == 0) |
| return score + SCORE_INS + SCORE_DEL; |
| |
| /* Failed to compare. */ |
| break; |
| } |
| |
| return SCORE_MAXMAX; |
| } |
| |
| /* |
| * Compute the "edit distance" to turn "badword" into "goodword". The less |
| * deletes/inserts/substitutes/swaps are required the lower the score. |
| * |
| * The algorithm is described by Du and Chang, 1992. |
| * The implementation of the algorithm comes from Aspell editdist.cpp, |
| * edit_distance(). It has been converted from C++ to C and modified to |
| * support multi-byte characters. |
| */ |
| static int |
| spell_edit_score( |
| slang_T *slang, |
| char_u *badword, |
| char_u *goodword) |
| { |
| int *cnt; |
| int badlen, goodlen; /* lengths including NUL */ |
| int j, i; |
| int t; |
| int bc, gc; |
| int pbc, pgc; |
| #ifdef FEAT_MBYTE |
| char_u *p; |
| int wbadword[MAXWLEN]; |
| int wgoodword[MAXWLEN]; |
| |
| if (has_mbyte) |
| { |
| /* Get the characters from the multi-byte strings and put them in an |
| * int array for easy access. */ |
| for (p = badword, badlen = 0; *p != NUL; ) |
| wbadword[badlen++] = mb_cptr2char_adv(&p); |
| wbadword[badlen++] = 0; |
| for (p = goodword, goodlen = 0; *p != NUL; ) |
| wgoodword[goodlen++] = mb_cptr2char_adv(&p); |
| wgoodword[goodlen++] = 0; |
| } |
| else |
| #endif |
| { |
| badlen = (int)STRLEN(badword) + 1; |
| goodlen = (int)STRLEN(goodword) + 1; |
| } |
| |
| /* We use "cnt" as an array: CNT(badword_idx, goodword_idx). */ |
| #define CNT(a, b) cnt[(a) + (b) * (badlen + 1)] |
| cnt = (int *)lalloc((long_u)(sizeof(int) * (badlen + 1) * (goodlen + 1)), |
| TRUE); |
| if (cnt == NULL) |
| return 0; /* out of memory */ |
| |
| CNT(0, 0) = 0; |
| for (j = 1; j <= goodlen; ++j) |
| CNT(0, j) = CNT(0, j - 1) + SCORE_INS; |
| |
| for (i = 1; i <= badlen; ++i) |
| { |
| CNT(i, 0) = CNT(i - 1, 0) + SCORE_DEL; |
| for (j = 1; j <= goodlen; ++j) |
| { |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| bc = wbadword[i - 1]; |
| gc = wgoodword[j - 1]; |
| } |
| else |
| #endif |
| { |
| bc = badword[i - 1]; |
| gc = goodword[j - 1]; |
| } |
| if (bc == gc) |
| CNT(i, j) = CNT(i - 1, j - 1); |
| else |
| { |
| /* Use a better score when there is only a case difference. */ |
| if (SPELL_TOFOLD(bc) == SPELL_TOFOLD(gc)) |
| CNT(i, j) = SCORE_ICASE + CNT(i - 1, j - 1); |
| else |
| { |
| /* For a similar character use SCORE_SIMILAR. */ |
| if (slang != NULL |
| && slang->sl_has_map |
| && similar_chars(slang, gc, bc)) |
| CNT(i, j) = SCORE_SIMILAR + CNT(i - 1, j - 1); |
| else |
| CNT(i, j) = SCORE_SUBST + CNT(i - 1, j - 1); |
| } |
| |
| if (i > 1 && j > 1) |
| { |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| pbc = wbadword[i - 2]; |
| pgc = wgoodword[j - 2]; |
| } |
| else |
| #endif |
| { |
| pbc = badword[i - 2]; |
| pgc = goodword[j - 2]; |
| } |
| if (bc == pgc && pbc == gc) |
| { |
| t = SCORE_SWAP + CNT(i - 2, j - 2); |
| if (t < CNT(i, j)) |
| CNT(i, j) = t; |
| } |
| } |
| t = SCORE_DEL + CNT(i - 1, j); |
| if (t < CNT(i, j)) |
| CNT(i, j) = t; |
| t = SCORE_INS + CNT(i, j - 1); |
| if (t < CNT(i, j)) |
| CNT(i, j) = t; |
| } |
| } |
| } |
| |
| i = CNT(badlen - 1, goodlen - 1); |
| vim_free(cnt); |
| return i; |
| } |
| |
| typedef struct |
| { |
| int badi; |
| int goodi; |
| int score; |
| } limitscore_T; |
| |
| /* |
| * Like spell_edit_score(), but with a limit on the score to make it faster. |
| * May return SCORE_MAXMAX when the score is higher than "limit". |
| * |
| * This uses a stack for the edits still to be tried. |
| * The idea comes from Aspell leditdist.cpp. Rewritten in C and added support |
| * for multi-byte characters. |
| */ |
| static int |
| spell_edit_score_limit( |
| slang_T *slang, |
| char_u *badword, |
| char_u *goodword, |
| int limit) |
| { |
| limitscore_T stack[10]; /* allow for over 3 * 2 edits */ |
| int stackidx; |
| int bi, gi; |
| int bi2, gi2; |
| int bc, gc; |
| int score; |
| int score_off; |
| int minscore; |
| int round; |
| |
| #ifdef FEAT_MBYTE |
| /* Multi-byte characters require a bit more work, use a different function |
| * to avoid testing "has_mbyte" quite often. */ |
| if (has_mbyte) |
| return spell_edit_score_limit_w(slang, badword, goodword, limit); |
| #endif |
| |
| /* |
| * The idea is to go from start to end over the words. So long as |
| * characters are equal just continue, this always gives the lowest score. |
| * When there is a difference try several alternatives. Each alternative |
| * increases "score" for the edit distance. Some of the alternatives are |
| * pushed unto a stack and tried later, some are tried right away. At the |
| * end of the word the score for one alternative is known. The lowest |
| * possible score is stored in "minscore". |
| */ |
| stackidx = 0; |
| bi = 0; |
| gi = 0; |
| score = 0; |
| minscore = limit + 1; |
| |
| for (;;) |
| { |
| /* Skip over an equal part, score remains the same. */ |
| for (;;) |
| { |
| bc = badword[bi]; |
| gc = goodword[gi]; |
| if (bc != gc) /* stop at a char that's different */ |
| break; |
| if (bc == NUL) /* both words end */ |
| { |
| if (score < minscore) |
| minscore = score; |
| goto pop; /* do next alternative */ |
| } |
| ++bi; |
| ++gi; |
| } |
| |
| if (gc == NUL) /* goodword ends, delete badword chars */ |
| { |
| do |
| { |
| if ((score += SCORE_DEL) >= minscore) |
| goto pop; /* do next alternative */ |
| } while (badword[++bi] != NUL); |
| minscore = score; |
| } |
| else if (bc == NUL) /* badword ends, insert badword chars */ |
| { |
| do |
| { |
| if ((score += SCORE_INS) >= minscore) |
| goto pop; /* do next alternative */ |
| } while (goodword[++gi] != NUL); |
| minscore = score; |
| } |
| else /* both words continue */ |
| { |
| /* If not close to the limit, perform a change. Only try changes |
| * that may lead to a lower score than "minscore". |
| * round 0: try deleting a char from badword |
| * round 1: try inserting a char in badword */ |
| for (round = 0; round <= 1; ++round) |
| { |
| score_off = score + (round == 0 ? SCORE_DEL : SCORE_INS); |
| if (score_off < minscore) |
| { |
| if (score_off + SCORE_EDIT_MIN >= minscore) |
| { |
| /* Near the limit, rest of the words must match. We |
| * can check that right now, no need to push an item |
| * onto the stack. */ |
| bi2 = bi + 1 - round; |
| gi2 = gi + round; |
| while (goodword[gi2] == badword[bi2]) |
| { |
| if (goodword[gi2] == NUL) |
| { |
| minscore = score_off; |
| break; |
| } |
| ++bi2; |
| ++gi2; |
| } |
| } |
| else |
| { |
| /* try deleting/inserting a character later */ |
| stack[stackidx].badi = bi + 1 - round; |
| stack[stackidx].goodi = gi + round; |
| stack[stackidx].score = score_off; |
| ++stackidx; |
| } |
| } |
| } |
| |
| if (score + SCORE_SWAP < minscore) |
| { |
| /* If swapping two characters makes a match then the |
| * substitution is more expensive, thus there is no need to |
| * try both. */ |
| if (gc == badword[bi + 1] && bc == goodword[gi + 1]) |
| { |
| /* Swap two characters, that is: skip them. */ |
| gi += 2; |
| bi += 2; |
| score += SCORE_SWAP; |
| continue; |
| } |
| } |
| |
| /* Substitute one character for another which is the same |
| * thing as deleting a character from both goodword and badword. |
| * Use a better score when there is only a case difference. */ |
| if (SPELL_TOFOLD(bc) == SPELL_TOFOLD(gc)) |
| score += SCORE_ICASE; |
| else |
| { |
| /* For a similar character use SCORE_SIMILAR. */ |
| if (slang != NULL |
| && slang->sl_has_map |
| && similar_chars(slang, gc, bc)) |
| score += SCORE_SIMILAR; |
| else |
| score += SCORE_SUBST; |
| } |
| |
| if (score < minscore) |
| { |
| /* Do the substitution. */ |
| ++gi; |
| ++bi; |
| continue; |
| } |
| } |
| pop: |
| /* |
| * Get here to try the next alternative, pop it from the stack. |
| */ |
| if (stackidx == 0) /* stack is empty, finished */ |
| break; |
| |
| /* pop an item from the stack */ |
| --stackidx; |
| gi = stack[stackidx].goodi; |
| bi = stack[stackidx].badi; |
| score = stack[stackidx].score; |
| } |
| |
| /* When the score goes over "limit" it may actually be much higher. |
| * Return a very large number to avoid going below the limit when giving a |
| * bonus. */ |
| if (minscore > limit) |
| return SCORE_MAXMAX; |
| return minscore; |
| } |
| |
| #ifdef FEAT_MBYTE |
| /* |
| * Multi-byte version of spell_edit_score_limit(). |
| * Keep it in sync with the above! |
| */ |
| static int |
| spell_edit_score_limit_w( |
| slang_T *slang, |
| char_u *badword, |
| char_u *goodword, |
| int limit) |
| { |
| limitscore_T stack[10]; /* allow for over 3 * 2 edits */ |
| int stackidx; |
| int bi, gi; |
| int bi2, gi2; |
| int bc, gc; |
| int score; |
| int score_off; |
| int minscore; |
| int round; |
| char_u *p; |
| int wbadword[MAXWLEN]; |
| int wgoodword[MAXWLEN]; |
| |
| /* Get the characters from the multi-byte strings and put them in an |
| * int array for easy access. */ |
| bi = 0; |
| for (p = badword; *p != NUL; ) |
| wbadword[bi++] = mb_cptr2char_adv(&p); |
| wbadword[bi++] = 0; |
| gi = 0; |
| for (p = goodword; *p != NUL; ) |
| wgoodword[gi++] = mb_cptr2char_adv(&p); |
| wgoodword[gi++] = 0; |
| |
| /* |
| * The idea is to go from start to end over the words. So long as |
| * characters are equal just continue, this always gives the lowest score. |
| * When there is a difference try several alternatives. Each alternative |
| * increases "score" for the edit distance. Some of the alternatives are |
| * pushed unto a stack and tried later, some are tried right away. At the |
| * end of the word the score for one alternative is known. The lowest |
| * possible score is stored in "minscore". |
| */ |
| stackidx = 0; |
| bi = 0; |
| gi = 0; |
| score = 0; |
| minscore = limit + 1; |
| |
| for (;;) |
| { |
| /* Skip over an equal part, score remains the same. */ |
| for (;;) |
| { |
| bc = wbadword[bi]; |
| gc = wgoodword[gi]; |
| |
| if (bc != gc) /* stop at a char that's different */ |
| break; |
| if (bc == NUL) /* both words end */ |
| { |
| if (score < minscore) |
| minscore = score; |
| goto pop; /* do next alternative */ |
| } |
| ++bi; |
| ++gi; |
| } |
| |
| if (gc == NUL) /* goodword ends, delete badword chars */ |
| { |
| do |
| { |
| if ((score += SCORE_DEL) >= minscore) |
| goto pop; /* do next alternative */ |
| } while (wbadword[++bi] != NUL); |
| minscore = score; |
| } |
| else if (bc == NUL) /* badword ends, insert badword chars */ |
| { |
| do |
| { |
| if ((score += SCORE_INS) >= minscore) |
| goto pop; /* do next alternative */ |
| } while (wgoodword[++gi] != NUL); |
| minscore = score; |
| } |
| else /* both words continue */ |
| { |
| /* If not close to the limit, perform a change. Only try changes |
| * that may lead to a lower score than "minscore". |
| * round 0: try deleting a char from badword |
| * round 1: try inserting a char in badword */ |
| for (round = 0; round <= 1; ++round) |
| { |
| score_off = score + (round == 0 ? SCORE_DEL : SCORE_INS); |
| if (score_off < minscore) |
| { |
| if (score_off + SCORE_EDIT_MIN >= minscore) |
| { |
| /* Near the limit, rest of the words must match. We |
| * can check that right now, no need to push an item |
| * onto the stack. */ |
| bi2 = bi + 1 - round; |
| gi2 = gi + round; |
| while (wgoodword[gi2] == wbadword[bi2]) |
| { |
| if (wgoodword[gi2] == NUL) |
| { |
| minscore = score_off; |
| break; |
| } |
| ++bi2; |
| ++gi2; |
| } |
| } |
| else |
| { |
| /* try deleting a character from badword later */ |
| stack[stackidx].badi = bi + 1 - round; |
| stack[stackidx].goodi = gi + round; |
| stack[stackidx].score = score_off; |
| ++stackidx; |
| } |
| } |
| } |
| |
| if (score + SCORE_SWAP < minscore) |
| { |
| /* If swapping two characters makes a match then the |
| * substitution is more expensive, thus there is no need to |
| * try both. */ |
| if (gc == wbadword[bi + 1] && bc == wgoodword[gi + 1]) |
| { |
| /* Swap two characters, that is: skip them. */ |
| gi += 2; |
| bi += 2; |
| score += SCORE_SWAP; |
| continue; |
| } |
| } |
| |
| /* Substitute one character for another which is the same |
| * thing as deleting a character from both goodword and badword. |
| * Use a better score when there is only a case difference. */ |
| if (SPELL_TOFOLD(bc) == SPELL_TOFOLD(gc)) |
| score += SCORE_ICASE; |
| else |
| { |
| /* For a similar character use SCORE_SIMILAR. */ |
| if (slang != NULL |
| && slang->sl_has_map |
| && similar_chars(slang, gc, bc)) |
| score += SCORE_SIMILAR; |
| else |
| score += SCORE_SUBST; |
| } |
| |
| if (score < minscore) |
| { |
| /* Do the substitution. */ |
| ++gi; |
| ++bi; |
| continue; |
| } |
| } |
| pop: |
| /* |
| * Get here to try the next alternative, pop it from the stack. |
| */ |
| if (stackidx == 0) /* stack is empty, finished */ |
| break; |
| |
| /* pop an item from the stack */ |
| --stackidx; |
| gi = stack[stackidx].goodi; |
| bi = stack[stackidx].badi; |
| score = stack[stackidx].score; |
| } |
| |
| /* When the score goes over "limit" it may actually be much higher. |
| * Return a very large number to avoid going below the limit when giving a |
| * bonus. */ |
| if (minscore > limit) |
| return SCORE_MAXMAX; |
| return minscore; |
| } |
| #endif |
| |
| /* |
| * ":spellinfo" |
| */ |
| void |
| ex_spellinfo(exarg_T *eap UNUSED) |
| { |
| int lpi; |
| langp_T *lp; |
| char_u *p; |
| |
| if (no_spell_checking(curwin)) |
| return; |
| |
| msg_start(); |
| for (lpi = 0; lpi < curwin->w_s->b_langp.ga_len && !got_int; ++lpi) |
| { |
| lp = LANGP_ENTRY(curwin->w_s->b_langp, lpi); |
| msg_puts((char_u *)"file: "); |
| msg_puts(lp->lp_slang->sl_fname); |
| msg_putchar('\n'); |
| p = lp->lp_slang->sl_info; |
| if (p != NULL) |
| { |
| msg_puts(p); |
| msg_putchar('\n'); |
| } |
| } |
| msg_end(); |
| } |
| |
| #define DUMPFLAG_KEEPCASE 1 /* round 2: keep-case tree */ |
| #define DUMPFLAG_COUNT 2 /* include word count */ |
| #define DUMPFLAG_ICASE 4 /* ignore case when finding matches */ |
| #define DUMPFLAG_ONECAP 8 /* pattern starts with capital */ |
| #define DUMPFLAG_ALLCAP 16 /* pattern is all capitals */ |
| |
| /* |
| * ":spelldump" |
| */ |
| void |
| ex_spelldump(exarg_T *eap) |
| { |
| char_u *spl; |
| long dummy; |
| |
| if (no_spell_checking(curwin)) |
| return; |
| get_option_value((char_u*)"spl", &dummy, &spl, OPT_LOCAL); |
| |
| /* Create a new empty buffer in a new window. */ |
| do_cmdline_cmd((char_u *)"new"); |
| |
| /* enable spelling locally in the new window */ |
| set_option_value((char_u*)"spell", TRUE, (char_u*)"", OPT_LOCAL); |
| set_option_value((char_u*)"spl", dummy, spl, OPT_LOCAL); |
| vim_free(spl); |
| |
| if (!bufempty()) |
| return; |
| |
| spell_dump_compl(NULL, 0, NULL, eap->forceit ? DUMPFLAG_COUNT : 0); |
| |
| /* Delete the empty line that we started with. */ |
| if (curbuf->b_ml.ml_line_count > 1) |
| ml_delete(curbuf->b_ml.ml_line_count, FALSE); |
| |
| redraw_later(NOT_VALID); |
| } |
| |
| /* |
| * Go through all possible words and: |
| * 1. When "pat" is NULL: dump a list of all words in the current buffer. |
| * "ic" and "dir" are not used. |
| * 2. When "pat" is not NULL: add matching words to insert mode completion. |
| */ |
| void |
| spell_dump_compl( |
| char_u *pat, /* leading part of the word */ |
| int ic, /* ignore case */ |
| int *dir, /* direction for adding matches */ |
| int dumpflags_arg) /* DUMPFLAG_* */ |
| { |
| langp_T *lp; |
| slang_T *slang; |
| idx_T arridx[MAXWLEN]; |
| int curi[MAXWLEN]; |
| char_u word[MAXWLEN]; |
| int c; |
| char_u *byts; |
| idx_T *idxs; |
| linenr_T lnum = 0; |
| int round; |
| int depth; |
| int n; |
| int flags; |
| char_u *region_names = NULL; /* region names being used */ |
| int do_region = TRUE; /* dump region names and numbers */ |
| char_u *p; |
| int lpi; |
| int dumpflags = dumpflags_arg; |
| int patlen; |
| |
| /* When ignoring case or when the pattern starts with capital pass this on |
| * to dump_word(). */ |
| if (pat != NULL) |
| { |
| if (ic) |
| dumpflags |= DUMPFLAG_ICASE; |
| else |
| { |
| n = captype(pat, NULL); |
| if (n == WF_ONECAP) |
| dumpflags |= DUMPFLAG_ONECAP; |
| else if (n == WF_ALLCAP |
| #ifdef FEAT_MBYTE |
| && (int)STRLEN(pat) > mb_ptr2len(pat) |
| #else |
| && (int)STRLEN(pat) > 1 |
| #endif |
| ) |
| dumpflags |= DUMPFLAG_ALLCAP; |
| } |
| } |
| |
| /* Find out if we can support regions: All languages must support the same |
| * regions or none at all. */ |
| for (lpi = 0; lpi < curwin->w_s->b_langp.ga_len; ++lpi) |
| { |
| lp = LANGP_ENTRY(curwin->w_s->b_langp, lpi); |
| p = lp->lp_slang->sl_regions; |
| if (p[0] != 0) |
| { |
| if (region_names == NULL) /* first language with regions */ |
| region_names = p; |
| else if (STRCMP(region_names, p) != 0) |
| { |
| do_region = FALSE; /* region names are different */ |
| break; |
| } |
| } |
| } |
| |
| if (do_region && region_names != NULL) |
| { |
| if (pat == NULL) |
| { |
| vim_snprintf((char *)IObuff, IOSIZE, "/regions=%s", region_names); |
| ml_append(lnum++, IObuff, (colnr_T)0, FALSE); |
| } |
| } |
| else |
| do_region = FALSE; |
| |
| /* |
| * Loop over all files loaded for the entries in 'spelllang'. |
| */ |
| for (lpi = 0; lpi < curwin->w_s->b_langp.ga_len; ++lpi) |
| { |
| lp = LANGP_ENTRY(curwin->w_s->b_langp, lpi); |
| slang = lp->lp_slang; |
| if (slang->sl_fbyts == NULL) /* reloading failed */ |
| continue; |
| |
| if (pat == NULL) |
| { |
| vim_snprintf((char *)IObuff, IOSIZE, "# file: %s", slang->sl_fname); |
| ml_append(lnum++, IObuff, (colnr_T)0, FALSE); |
| } |
| |
| /* When matching with a pattern and there are no prefixes only use |
| * parts of the tree that match "pat". */ |
| if (pat != NULL && slang->sl_pbyts == NULL) |
| patlen = (int)STRLEN(pat); |
| else |
| patlen = -1; |
| |
| /* round 1: case-folded tree |
| * round 2: keep-case tree */ |
| for (round = 1; round <= 2; ++round) |
| { |
| if (round == 1) |
| { |
| dumpflags &= ~DUMPFLAG_KEEPCASE; |
| byts = slang->sl_fbyts; |
| idxs = slang->sl_fidxs; |
| } |
| else |
| { |
| dumpflags |= DUMPFLAG_KEEPCASE; |
| byts = slang->sl_kbyts; |
| idxs = slang->sl_kidxs; |
| } |
| if (byts == NULL) |
| continue; /* array is empty */ |
| |
| depth = 0; |
| arridx[0] = 0; |
| curi[0] = 1; |
| while (depth >= 0 && !got_int |
| && (pat == NULL || !compl_interrupted)) |
| { |
| if (curi[depth] > byts[arridx[depth]]) |
| { |
| /* Done all bytes at this node, go up one level. */ |
| --depth; |
| line_breakcheck(); |
| ins_compl_check_keys(50); |
| } |
| else |
| { |
| /* Do one more byte at this node. */ |
| n = arridx[depth] + curi[depth]; |
| ++curi[depth]; |
| c = byts[n]; |
| if (c == 0) |
| { |
| /* End of word, deal with the word. |
| * Don't use keep-case words in the fold-case tree, |
| * they will appear in the keep-case tree. |
| * Only use the word when the region matches. */ |
| flags = (int)idxs[n]; |
| if ((round == 2 || (flags & WF_KEEPCAP) == 0) |
| && (flags & WF_NEEDCOMP) == 0 |
| && (do_region |
| || (flags & WF_REGION) == 0 |
| || (((unsigned)flags >> 16) |
| & lp->lp_region) != 0)) |
| { |
| word[depth] = NUL; |
| if (!do_region) |
| flags &= ~WF_REGION; |
| |
| /* Dump the basic word if there is no prefix or |
| * when it's the first one. */ |
| c = (unsigned)flags >> 24; |
| if (c == 0 || curi[depth] == 2) |
| { |
| dump_word(slang, word, pat, dir, |
| dumpflags, flags, lnum); |
| if (pat == NULL) |
| ++lnum; |
| } |
| |
| /* Apply the prefix, if there is one. */ |
| if (c != 0) |
| lnum = dump_prefixes(slang, word, pat, dir, |
| dumpflags, flags, lnum); |
| } |
| } |
| else |
| { |
| /* Normal char, go one level deeper. */ |
| word[depth++] = c; |
| arridx[depth] = idxs[n]; |
| curi[depth] = 1; |
| |
| /* Check if this characters matches with the pattern. |
| * If not skip the whole tree below it. |
| * Always ignore case here, dump_word() will check |
| * proper case later. This isn't exactly right when |
| * length changes for multi-byte characters with |
| * ignore case... */ |
| if (depth <= patlen |
| && MB_STRNICMP(word, pat, depth) != 0) |
| --depth; |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| /* |
| * Dump one word: apply case modifications and append a line to the buffer. |
| * When "lnum" is zero add insert mode completion. |
| */ |
| static void |
| dump_word( |
| slang_T *slang, |
| char_u *word, |
| char_u *pat, |
| int *dir, |
| int dumpflags, |
| int wordflags, |
| linenr_T lnum) |
| { |
| int keepcap = FALSE; |
| char_u *p; |
| char_u *tw; |
| char_u cword[MAXWLEN]; |
| char_u badword[MAXWLEN + 10]; |
| int i; |
| int flags = wordflags; |
| |
| if (dumpflags & DUMPFLAG_ONECAP) |
| flags |= WF_ONECAP; |
| if (dumpflags & DUMPFLAG_ALLCAP) |
| flags |= WF_ALLCAP; |
| |
| if ((dumpflags & DUMPFLAG_KEEPCASE) == 0 && (flags & WF_CAPMASK) != 0) |
| { |
| /* Need to fix case according to "flags". */ |
| make_case_word(word, cword, flags); |
| p = cword; |
| } |
| else |
| { |
| p = word; |
| if ((dumpflags & DUMPFLAG_KEEPCASE) |
| && ((captype(word, NULL) & WF_KEEPCAP) == 0 |
| || (flags & WF_FIXCAP) != 0)) |
| keepcap = TRUE; |
| } |
| tw = p; |
| |
| if (pat == NULL) |
| { |
| /* Add flags and regions after a slash. */ |
| if ((flags & (WF_BANNED | WF_RARE | WF_REGION)) || keepcap) |
| { |
| STRCPY(badword, p); |
| STRCAT(badword, "/"); |
| if (keepcap) |
| STRCAT(badword, "="); |
| if (flags & WF_BANNED) |
| STRCAT(badword, "!"); |
| else if (flags & WF_RARE) |
| STRCAT(badword, "?"); |
| if (flags & WF_REGION) |
| for (i = 0; i < 7; ++i) |
| if (flags & (0x10000 << i)) |
| sprintf((char *)badword + STRLEN(badword), "%d", i + 1); |
| p = badword; |
| } |
| |
| if (dumpflags & DUMPFLAG_COUNT) |
| { |
| hashitem_T *hi; |
| |
| /* Include the word count for ":spelldump!". */ |
| hi = hash_find(&slang->sl_wordcount, tw); |
| if (!HASHITEM_EMPTY(hi)) |
| { |
| vim_snprintf((char *)IObuff, IOSIZE, "%s\t%d", |
| tw, HI2WC(hi)->wc_count); |
| p = IObuff; |
| } |
| } |
| |
| ml_append(lnum, p, (colnr_T)0, FALSE); |
| } |
| else if (((dumpflags & DUMPFLAG_ICASE) |
| ? MB_STRNICMP(p, pat, STRLEN(pat)) == 0 |
| : STRNCMP(p, pat, STRLEN(pat)) == 0) |
| && ins_compl_add_infercase(p, (int)STRLEN(p), |
| p_ic, NULL, *dir, 0) == OK) |
| /* if dir was BACKWARD then honor it just once */ |
| *dir = FORWARD; |
| } |
| |
| /* |
| * For ":spelldump": Find matching prefixes for "word". Prepend each to |
| * "word" and append a line to the buffer. |
| * When "lnum" is zero add insert mode completion. |
| * Return the updated line number. |
| */ |
| static linenr_T |
| dump_prefixes( |
| slang_T *slang, |
| char_u *word, /* case-folded word */ |
| char_u *pat, |
| int *dir, |
| int dumpflags, |
| int flags, /* flags with prefix ID */ |
| linenr_T startlnum) |
| { |
| idx_T arridx[MAXWLEN]; |
| int curi[MAXWLEN]; |
| char_u prefix[MAXWLEN]; |
| char_u word_up[MAXWLEN]; |
| int has_word_up = FALSE; |
| int c; |
| char_u *byts; |
| idx_T *idxs; |
| linenr_T lnum = startlnum; |
| int depth; |
| int n; |
| int len; |
| int i; |
| |
| /* If the word starts with a lower-case letter make the word with an |
| * upper-case letter in word_up[]. */ |
| c = PTR2CHAR(word); |
| if (SPELL_TOUPPER(c) != c) |
| { |
| onecap_copy(word, word_up, TRUE); |
| has_word_up = TRUE; |
| } |
| |
| byts = slang->sl_pbyts; |
| idxs = slang->sl_pidxs; |
| if (byts != NULL) /* array not is empty */ |
| { |
| /* |
| * Loop over all prefixes, building them byte-by-byte in prefix[]. |
| * When at the end of a prefix check that it supports "flags". |
| */ |
| depth = 0; |
| arridx[0] = 0; |
| curi[0] = 1; |
| while (depth >= 0 && !got_int) |
| { |
| n = arridx[depth]; |
| len = byts[n]; |
| if (curi[depth] > len) |
| { |
| /* Done all bytes at this node, go up one level. */ |
| --depth; |
| line_breakcheck(); |
| } |
| else |
| { |
| /* Do one more byte at this node. */ |
| n += curi[depth]; |
| ++curi[depth]; |
| c = byts[n]; |
| if (c == 0) |
| { |
| /* End of prefix, find out how many IDs there are. */ |
| for (i = 1; i < len; ++i) |
| if (byts[n + i] != 0) |
| break; |
| curi[depth] += i - 1; |
| |
| c = valid_word_prefix(i, n, flags, word, slang, FALSE); |
| if (c != 0) |
| { |
| vim_strncpy(prefix + depth, word, MAXWLEN - depth - 1); |
| dump_word(slang, prefix, pat, dir, dumpflags, |
| (c & WF_RAREPFX) ? (flags | WF_RARE) |
| : flags, lnum); |
| if (lnum != 0) |
| ++lnum; |
| } |
| |
| /* Check for prefix that matches the word when the |
| * first letter is upper-case, but only if the prefix has |
| * a condition. */ |
| if (has_word_up) |
| { |
| c = valid_word_prefix(i, n, flags, word_up, slang, |
| TRUE); |
| if (c != 0) |
| { |
| vim_strncpy(prefix + depth, word_up, |
| MAXWLEN - depth - 1); |
| dump_word(slang, prefix, pat, dir, dumpflags, |
| (c & WF_RAREPFX) ? (flags | WF_RARE) |
| : flags, lnum); |
| if (lnum != 0) |
| ++lnum; |
| } |
| } |
| } |
| else |
| { |
| /* Normal char, go one level deeper. */ |
| prefix[depth++] = c; |
| arridx[depth] = idxs[n]; |
| curi[depth] = 1; |
| } |
| } |
| } |
| } |
| |
| return lnum; |
| } |
| |
| /* |
| * Move "p" to the end of word "start". |
| * Uses the spell-checking word characters. |
| */ |
| char_u * |
| spell_to_word_end(char_u *start, win_T *win) |
| { |
| char_u *p = start; |
| |
| while (*p != NUL && spell_iswordp(p, win)) |
| mb_ptr_adv(p); |
| return p; |
| } |
| |
| #if defined(FEAT_INS_EXPAND) || defined(PROTO) |
| /* |
| * For Insert mode completion CTRL-X s: |
| * Find start of the word in front of column "startcol". |
| * We don't check if it is badly spelled, with completion we can only change |
| * the word in front of the cursor. |
| * Returns the column number of the word. |
| */ |
| int |
| spell_word_start(int startcol) |
| { |
| char_u *line; |
| char_u *p; |
| int col = 0; |
| |
| if (no_spell_checking(curwin)) |
| return startcol; |
| |
| /* Find a word character before "startcol". */ |
| line = ml_get_curline(); |
| for (p = line + startcol; p > line; ) |
| { |
| mb_ptr_back(line, p); |
| if (spell_iswordp_nmw(p, curwin)) |
| break; |
| } |
| |
| /* Go back to start of the word. */ |
| while (p > line) |
| { |
| col = (int)(p - line); |
| mb_ptr_back(line, p); |
| if (!spell_iswordp(p, curwin)) |
| break; |
| col = 0; |
| } |
| |
| return col; |
| } |
| |
| /* |
| * Need to check for 'spellcapcheck' now, the word is removed before |
| * expand_spelling() is called. Therefore the ugly global variable. |
| */ |
| static int spell_expand_need_cap; |
| |
| void |
| spell_expand_check_cap(colnr_T col) |
| { |
| spell_expand_need_cap = check_need_cap(curwin->w_cursor.lnum, col); |
| } |
| |
| /* |
| * Get list of spelling suggestions. |
| * Used for Insert mode completion CTRL-X ?. |
| * Returns the number of matches. The matches are in "matchp[]", array of |
| * allocated strings. |
| */ |
| int |
| expand_spelling( |
| linenr_T lnum UNUSED, |
| char_u *pat, |
| char_u ***matchp) |
| { |
| garray_T ga; |
| |
| spell_suggest_list(&ga, pat, 100, spell_expand_need_cap, TRUE); |
| *matchp = ga.ga_data; |
| return ga.ga_len; |
| } |
| #endif |
| |
| #endif /* FEAT_SPELL */ |