| /* 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. |
| */ |
| |
| #include "vim.h" |
| |
| #ifdef FEAT_LINEBREAK |
| static int win_chartabsize __ARGS((win_T *wp, char_u *p, colnr_T col)); |
| #endif |
| |
| #ifdef FEAT_MBYTE |
| static int win_nolbr_chartabsize __ARGS((win_T *wp, char_u *s, colnr_T col, int *headp)); |
| #endif |
| |
| static int nr2hex __ARGS((int c)); |
| |
| static int chartab_initialized = FALSE; |
| |
| /* b_chartab[] is an array of 32 bytes, each bit representing one of the |
| * characters 0-255. */ |
| #define SET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] |= (1 << ((c) & 0x7)) |
| #define RESET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] &= ~(1 << ((c) & 0x7)) |
| #define GET_CHARTAB(buf, c) ((buf)->b_chartab[(unsigned)(c) >> 3] & (1 << ((c) & 0x7))) |
| |
| /* |
| * Fill chartab[]. Also fills curbuf->b_chartab[] with flags for keyword |
| * characters for current buffer. |
| * |
| * Depends on the option settings 'iskeyword', 'isident', 'isfname', |
| * 'isprint' and 'encoding'. |
| * |
| * The index in chartab[] depends on 'encoding': |
| * - For non-multi-byte index with the byte (same as the character). |
| * - For DBCS index with the first byte. |
| * - For UTF-8 index with the character (when first byte is up to 0x80 it is |
| * the same as the character, if the first byte is 0x80 and above it depends |
| * on further bytes). |
| * |
| * The contents of chartab[]: |
| * - The lower two bits, masked by CT_CELL_MASK, give the number of display |
| * cells the character occupies (1 or 2). Not valid for UTF-8 above 0x80. |
| * - CT_PRINT_CHAR bit is set when the character is printable (no need to |
| * translate the character before displaying it). Note that only DBCS |
| * characters can have 2 display cells and still be printable. |
| * - CT_FNAME_CHAR bit is set when the character can be in a file name. |
| * - CT_ID_CHAR bit is set when the character can be in an identifier. |
| * |
| * Return FAIL if 'iskeyword', 'isident', 'isfname' or 'isprint' option has an |
| * error, OK otherwise. |
| */ |
| int |
| init_chartab() |
| { |
| return buf_init_chartab(curbuf, TRUE); |
| } |
| |
| int |
| buf_init_chartab(buf, global) |
| buf_T *buf; |
| int global; /* FALSE: only set buf->b_chartab[] */ |
| { |
| int c; |
| int c2; |
| char_u *p; |
| int i; |
| int tilde; |
| int do_isalpha; |
| |
| if (global) |
| { |
| /* |
| * Set the default size for printable characters: |
| * From <Space> to '~' is 1 (printable), others are 2 (not printable). |
| * This also inits all 'isident' and 'isfname' flags to FALSE. |
| * |
| * EBCDIC: all chars below ' ' are not printable, all others are |
| * printable. |
| */ |
| c = 0; |
| while (c < ' ') |
| chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2; |
| #ifdef EBCDIC |
| while (c < 255) |
| #else |
| while (c <= '~') |
| #endif |
| chartab[c++] = 1 + CT_PRINT_CHAR; |
| #ifdef FEAT_FKMAP |
| if (p_altkeymap) |
| { |
| while (c < YE) |
| chartab[c++] = 1 + CT_PRINT_CHAR; |
| } |
| #endif |
| while (c < 256) |
| { |
| #ifdef FEAT_MBYTE |
| /* UTF-8: bytes 0xa0 - 0xff are printable (latin1) */ |
| if (enc_utf8 && c >= 0xa0) |
| chartab[c++] = CT_PRINT_CHAR + 1; |
| /* euc-jp characters starting with 0x8e are single width */ |
| else if (enc_dbcs == DBCS_JPNU && c == 0x8e) |
| chartab[c++] = CT_PRINT_CHAR + 1; |
| /* other double-byte chars can be printable AND double-width */ |
| else if (enc_dbcs != 0 && MB_BYTE2LEN(c) == 2) |
| chartab[c++] = CT_PRINT_CHAR + 2; |
| else |
| #endif |
| /* the rest is unprintable by default */ |
| chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2; |
| } |
| |
| #ifdef FEAT_MBYTE |
| /* Assume that every multi-byte char is a filename character. */ |
| for (c = 1; c < 256; ++c) |
| if ((enc_dbcs != 0 && MB_BYTE2LEN(c) > 1) |
| || (enc_dbcs == DBCS_JPNU && c == 0x8e) |
| || (enc_utf8 && c >= 0xa0)) |
| chartab[c] |= CT_FNAME_CHAR; |
| #endif |
| } |
| |
| /* |
| * Init word char flags all to FALSE |
| */ |
| vim_memset(buf->b_chartab, 0, (size_t)32); |
| #ifdef FEAT_MBYTE |
| if (enc_dbcs != 0) |
| for (c = 0; c < 256; ++c) |
| { |
| /* double-byte characters are probably word characters */ |
| if (MB_BYTE2LEN(c) == 2) |
| SET_CHARTAB(buf, c); |
| } |
| #endif |
| |
| #ifdef FEAT_LISP |
| /* |
| * In lisp mode the '-' character is included in keywords. |
| */ |
| if (buf->b_p_lisp) |
| SET_CHARTAB(buf, '-'); |
| #endif |
| |
| /* Walk through the 'isident', 'iskeyword', 'isfname' and 'isprint' |
| * options Each option is a list of characters, character numbers or |
| * ranges, separated by commas, e.g.: "200-210,x,#-178,-" |
| */ |
| for (i = global ? 0 : 3; i <= 3; ++i) |
| { |
| if (i == 0) |
| p = p_isi; /* first round: 'isident' */ |
| else if (i == 1) |
| p = p_isp; /* second round: 'isprint' */ |
| else if (i == 2) |
| p = p_isf; /* third round: 'isfname' */ |
| else /* i == 3 */ |
| p = buf->b_p_isk; /* fourth round: 'iskeyword' */ |
| |
| while (*p) |
| { |
| tilde = FALSE; |
| do_isalpha = FALSE; |
| if (*p == '^' && p[1] != NUL) |
| { |
| tilde = TRUE; |
| ++p; |
| } |
| if (VIM_ISDIGIT(*p)) |
| c = getdigits(&p); |
| else |
| c = *p++; |
| c2 = -1; |
| if (*p == '-' && p[1] != NUL) |
| { |
| ++p; |
| if (VIM_ISDIGIT(*p)) |
| c2 = getdigits(&p); |
| else |
| c2 = *p++; |
| } |
| if (c <= 0 || (c2 < c && c2 != -1) || c2 >= 256 |
| || !(*p == NUL || *p == ',')) |
| return FAIL; |
| |
| if (c2 == -1) /* not a range */ |
| { |
| /* |
| * A single '@' (not "@-@"): |
| * Decide on letters being ID/printable/keyword chars with |
| * standard function isalpha(). This takes care of locale for |
| * single-byte characters). |
| */ |
| if (c == '@') |
| { |
| do_isalpha = TRUE; |
| c = 1; |
| c2 = 255; |
| } |
| else |
| c2 = c; |
| } |
| while (c <= c2) |
| { |
| /* Use the MB_ functions here, because isalpha() doesn't |
| * work properly when 'encoding' is "latin1" and the locale is |
| * "C". */ |
| if (!do_isalpha || MB_ISLOWER(c) || MB_ISUPPER(c) |
| #ifdef FEAT_FKMAP |
| || (p_altkeymap && (F_isalpha(c) || F_isdigit(c))) |
| #endif |
| ) |
| { |
| if (i == 0) /* (re)set ID flag */ |
| { |
| if (tilde) |
| chartab[c] &= ~CT_ID_CHAR; |
| else |
| chartab[c] |= CT_ID_CHAR; |
| } |
| else if (i == 1) /* (re)set printable */ |
| { |
| if ((c < ' ' |
| #ifndef EBCDIC |
| || c > '~' |
| #endif |
| #ifdef FEAT_FKMAP |
| || (p_altkeymap |
| && (F_isalpha(c) || F_isdigit(c))) |
| #endif |
| ) |
| #ifdef FEAT_MBYTE |
| /* For double-byte we keep the cell width, so |
| * that we can detect it from the first byte. */ |
| && !(enc_dbcs && MB_BYTE2LEN(c) == 2) |
| #endif |
| ) |
| { |
| if (tilde) |
| { |
| chartab[c] = (chartab[c] & ~CT_CELL_MASK) |
| + ((dy_flags & DY_UHEX) ? 4 : 2); |
| chartab[c] &= ~CT_PRINT_CHAR; |
| } |
| else |
| { |
| chartab[c] = (chartab[c] & ~CT_CELL_MASK) + 1; |
| chartab[c] |= CT_PRINT_CHAR; |
| } |
| } |
| } |
| else if (i == 2) /* (re)set fname flag */ |
| { |
| if (tilde) |
| chartab[c] &= ~CT_FNAME_CHAR; |
| else |
| chartab[c] |= CT_FNAME_CHAR; |
| } |
| else /* i == 3 */ /* (re)set keyword flag */ |
| { |
| if (tilde) |
| RESET_CHARTAB(buf, c); |
| else |
| SET_CHARTAB(buf, c); |
| } |
| } |
| ++c; |
| } |
| p = skip_to_option_part(p); |
| } |
| } |
| chartab_initialized = TRUE; |
| return OK; |
| } |
| |
| /* |
| * Translate any special characters in buf[bufsize] in-place. |
| * The result is a string with only printable characters, but if there is not |
| * enough room, not all characters will be translated. |
| */ |
| void |
| trans_characters(buf, bufsize) |
| char_u *buf; |
| int bufsize; |
| { |
| int len; /* length of string needing translation */ |
| int room; /* room in buffer after string */ |
| char_u *trs; /* translated character */ |
| int trs_len; /* length of trs[] */ |
| |
| len = (int)STRLEN(buf); |
| room = bufsize - len; |
| while (*buf != 0) |
| { |
| # ifdef FEAT_MBYTE |
| /* Assume a multi-byte character doesn't need translation. */ |
| if (has_mbyte && (trs_len = (*mb_ptr2len)(buf)) > 1) |
| len -= trs_len; |
| else |
| # endif |
| { |
| trs = transchar_byte(*buf); |
| trs_len = (int)STRLEN(trs); |
| if (trs_len > 1) |
| { |
| room -= trs_len - 1; |
| if (room <= 0) |
| return; |
| mch_memmove(buf + trs_len, buf + 1, (size_t)len); |
| } |
| mch_memmove(buf, trs, (size_t)trs_len); |
| --len; |
| } |
| buf += trs_len; |
| } |
| } |
| |
| #if defined(FEAT_EVAL) || defined(FEAT_TITLE) || defined(FEAT_INS_EXPAND) \ |
| || defined(PROTO) |
| /* |
| * Translate a string into allocated memory, replacing special chars with |
| * printable chars. Returns NULL when out of memory. |
| */ |
| char_u * |
| transstr(s) |
| char_u *s; |
| { |
| char_u *res; |
| char_u *p; |
| #ifdef FEAT_MBYTE |
| int l, len, c; |
| char_u hexbuf[11]; |
| #endif |
| |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| /* Compute the length of the result, taking account of unprintable |
| * multi-byte characters. */ |
| len = 0; |
| p = s; |
| while (*p != NUL) |
| { |
| if ((l = (*mb_ptr2len)(p)) > 1) |
| { |
| c = (*mb_ptr2char)(p); |
| p += l; |
| if (vim_isprintc(c)) |
| len += l; |
| else |
| { |
| transchar_hex(hexbuf, c); |
| len += (int)STRLEN(hexbuf); |
| } |
| } |
| else |
| { |
| l = byte2cells(*p++); |
| if (l > 0) |
| len += l; |
| else |
| len += 4; /* illegal byte sequence */ |
| } |
| } |
| res = alloc((unsigned)(len + 1)); |
| } |
| else |
| #endif |
| res = alloc((unsigned)(vim_strsize(s) + 1)); |
| if (res != NULL) |
| { |
| *res = NUL; |
| p = s; |
| while (*p != NUL) |
| { |
| #ifdef FEAT_MBYTE |
| if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) |
| { |
| c = (*mb_ptr2char)(p); |
| if (vim_isprintc(c)) |
| STRNCAT(res, p, l); /* append printable multi-byte char */ |
| else |
| transchar_hex(res + STRLEN(res), c); |
| p += l; |
| } |
| else |
| #endif |
| STRCAT(res, transchar_byte(*p++)); |
| } |
| } |
| return res; |
| } |
| #endif |
| |
| #if defined(FEAT_SYN_HL) || defined(FEAT_INS_EXPAND) || defined(PROTO) |
| /* |
| * Convert the string "str[orglen]" to do ignore-case comparing. Uses the |
| * current locale. |
| * When "buf" is NULL returns an allocated string (NULL for out-of-memory). |
| * Otherwise puts the result in "buf[buflen]". |
| */ |
| char_u * |
| str_foldcase(str, orglen, buf, buflen) |
| char_u *str; |
| int orglen; |
| char_u *buf; |
| int buflen; |
| { |
| garray_T ga; |
| int i; |
| int len = orglen; |
| |
| #define GA_CHAR(i) ((char_u *)ga.ga_data)[i] |
| #define GA_PTR(i) ((char_u *)ga.ga_data + i) |
| #define STR_CHAR(i) (buf == NULL ? GA_CHAR(i) : buf[i]) |
| #define STR_PTR(i) (buf == NULL ? GA_PTR(i) : buf + i) |
| |
| /* Copy "str" into "buf" or allocated memory, unmodified. */ |
| if (buf == NULL) |
| { |
| ga_init2(&ga, 1, 10); |
| if (ga_grow(&ga, len + 1) == FAIL) |
| return NULL; |
| mch_memmove(ga.ga_data, str, (size_t)len); |
| ga.ga_len = len; |
| } |
| else |
| { |
| if (len >= buflen) /* Ugly! */ |
| len = buflen - 1; |
| mch_memmove(buf, str, (size_t)len); |
| } |
| if (buf == NULL) |
| GA_CHAR(len) = NUL; |
| else |
| buf[len] = NUL; |
| |
| /* Make each character lower case. */ |
| i = 0; |
| while (STR_CHAR(i) != NUL) |
| { |
| #ifdef FEAT_MBYTE |
| if (enc_utf8 || (has_mbyte && MB_BYTE2LEN(STR_CHAR(i)) > 1)) |
| { |
| if (enc_utf8) |
| { |
| int c, lc; |
| |
| c = utf_ptr2char(STR_PTR(i)); |
| lc = utf_tolower(c); |
| if (c != lc) |
| { |
| int ol = utf_char2len(c); |
| int nl = utf_char2len(lc); |
| |
| /* If the byte length changes need to shift the following |
| * characters forward or backward. */ |
| if (ol != nl) |
| { |
| if (nl > ol) |
| { |
| if (buf == NULL ? ga_grow(&ga, nl - ol + 1) == FAIL |
| : len + nl - ol >= buflen) |
| { |
| /* out of memory, keep old char */ |
| lc = c; |
| nl = ol; |
| } |
| } |
| if (ol != nl) |
| { |
| if (buf == NULL) |
| { |
| mch_memmove(GA_PTR(i) + nl, GA_PTR(i) + ol, |
| STRLEN(GA_PTR(i) + ol) + 1); |
| ga.ga_len += nl - ol; |
| } |
| else |
| { |
| mch_memmove(buf + i + nl, buf + i + ol, |
| STRLEN(buf + i + ol) + 1); |
| len += nl - ol; |
| } |
| } |
| } |
| (void)utf_char2bytes(lc, STR_PTR(i)); |
| } |
| } |
| /* skip to next multi-byte char */ |
| i += (*mb_ptr2len)(STR_PTR(i)); |
| } |
| else |
| #endif |
| { |
| if (buf == NULL) |
| GA_CHAR(i) = TOLOWER_LOC(GA_CHAR(i)); |
| else |
| buf[i] = TOLOWER_LOC(buf[i]); |
| ++i; |
| } |
| } |
| |
| if (buf == NULL) |
| return (char_u *)ga.ga_data; |
| return buf; |
| } |
| #endif |
| |
| /* |
| * Catch 22: chartab[] can't be initialized before the options are |
| * initialized, and initializing options may cause transchar() to be called! |
| * When chartab_initialized == FALSE don't use chartab[]. |
| * Does NOT work for multi-byte characters, c must be <= 255. |
| * Also doesn't work for the first byte of a multi-byte, "c" must be a |
| * character! |
| */ |
| static char_u transchar_buf[7]; |
| |
| char_u * |
| transchar(c) |
| int c; |
| { |
| int i; |
| |
| i = 0; |
| if (IS_SPECIAL(c)) /* special key code, display as ~@ char */ |
| { |
| transchar_buf[0] = '~'; |
| transchar_buf[1] = '@'; |
| i = 2; |
| c = K_SECOND(c); |
| } |
| |
| if ((!chartab_initialized && ( |
| #ifdef EBCDIC |
| (c >= 64 && c < 255) |
| #else |
| (c >= ' ' && c <= '~') |
| #endif |
| #ifdef FEAT_FKMAP |
| || F_ischar(c) |
| #endif |
| )) || (c < 256 && vim_isprintc_strict(c))) |
| { |
| /* printable character */ |
| transchar_buf[i] = c; |
| transchar_buf[i + 1] = NUL; |
| } |
| else |
| transchar_nonprint(transchar_buf + i, c); |
| return transchar_buf; |
| } |
| |
| #if defined(FEAT_MBYTE) || defined(PROTO) |
| /* |
| * Like transchar(), but called with a byte instead of a character. Checks |
| * for an illegal UTF-8 byte. |
| */ |
| char_u * |
| transchar_byte(c) |
| int c; |
| { |
| if (enc_utf8 && c >= 0x80) |
| { |
| transchar_nonprint(transchar_buf, c); |
| return transchar_buf; |
| } |
| return transchar(c); |
| } |
| #endif |
| |
| /* |
| * Convert non-printable character to two or more printable characters in |
| * "buf[]". "buf" needs to be able to hold five bytes. |
| * Does NOT work for multi-byte characters, c must be <= 255. |
| */ |
| void |
| transchar_nonprint(buf, c) |
| char_u *buf; |
| int c; |
| { |
| if (c == NL) |
| c = NUL; /* we use newline in place of a NUL */ |
| else if (c == CAR && get_fileformat(curbuf) == EOL_MAC) |
| c = NL; /* we use CR in place of NL in this case */ |
| |
| if (dy_flags & DY_UHEX) /* 'display' has "uhex" */ |
| transchar_hex(buf, c); |
| |
| #ifdef EBCDIC |
| /* For EBCDIC only the characters 0-63 and 255 are not printable */ |
| else if (CtrlChar(c) != 0 || c == DEL) |
| #else |
| else if (c <= 0x7f) /* 0x00 - 0x1f and 0x7f */ |
| #endif |
| { |
| buf[0] = '^'; |
| #ifdef EBCDIC |
| if (c == DEL) |
| buf[1] = '?'; /* DEL displayed as ^? */ |
| else |
| buf[1] = CtrlChar(c); |
| #else |
| buf[1] = c ^ 0x40; /* DEL displayed as ^? */ |
| #endif |
| |
| buf[2] = NUL; |
| } |
| #ifdef FEAT_MBYTE |
| else if (enc_utf8 && c >= 0x80) |
| { |
| transchar_hex(buf, c); |
| } |
| #endif |
| #ifndef EBCDIC |
| else if (c >= ' ' + 0x80 && c <= '~' + 0x80) /* 0xa0 - 0xfe */ |
| { |
| buf[0] = '|'; |
| buf[1] = c - 0x80; |
| buf[2] = NUL; |
| } |
| #else |
| else if (c < 64) |
| { |
| buf[0] = '~'; |
| buf[1] = MetaChar(c); |
| buf[2] = NUL; |
| } |
| #endif |
| else /* 0x80 - 0x9f and 0xff */ |
| { |
| /* |
| * TODO: EBCDIC I don't know what to do with this chars, so I display |
| * them as '~?' for now |
| */ |
| buf[0] = '~'; |
| #ifdef EBCDIC |
| buf[1] = '?'; /* 0xff displayed as ~? */ |
| #else |
| buf[1] = (c - 0x80) ^ 0x40; /* 0xff displayed as ~? */ |
| #endif |
| buf[2] = NUL; |
| } |
| } |
| |
| void |
| transchar_hex(buf, c) |
| char_u *buf; |
| int c; |
| { |
| int i = 0; |
| |
| buf[0] = '<'; |
| #ifdef FEAT_MBYTE |
| if (c > 255) |
| { |
| buf[++i] = nr2hex((unsigned)c >> 12); |
| buf[++i] = nr2hex((unsigned)c >> 8); |
| } |
| #endif |
| buf[++i] = nr2hex((unsigned)c >> 4); |
| buf[++i] = nr2hex(c); |
| buf[++i] = '>'; |
| buf[++i] = NUL; |
| } |
| |
| /* |
| * Convert the lower 4 bits of byte "c" to its hex character. |
| * Lower case letters are used to avoid the confusion of <F1> being 0xf1 or |
| * function key 1. |
| */ |
| static int |
| nr2hex(c) |
| int c; |
| { |
| if ((c & 0xf) <= 9) |
| return (c & 0xf) + '0'; |
| return (c & 0xf) - 10 + 'a'; |
| } |
| |
| /* |
| * Return number of display cells occupied by byte "b". |
| * Caller must make sure 0 <= b <= 255. |
| * For multi-byte mode "b" must be the first byte of a character. |
| * A TAB is counted as two cells: "^I". |
| * For UTF-8 mode this will return 0 for bytes >= 0x80, because the number of |
| * cells depends on further bytes. |
| */ |
| int |
| byte2cells(b) |
| int b; |
| { |
| #ifdef FEAT_MBYTE |
| if (enc_utf8 && b >= 0x80) |
| return 0; |
| #endif |
| return (chartab[b] & CT_CELL_MASK); |
| } |
| |
| /* |
| * Return number of display cells occupied by character "c". |
| * "c" can be a special key (negative number) in which case 3 or 4 is returned. |
| * A TAB is counted as two cells: "^I" or four: "<09>". |
| */ |
| int |
| char2cells(c) |
| int c; |
| { |
| if (IS_SPECIAL(c)) |
| return char2cells(K_SECOND(c)) + 2; |
| #ifdef FEAT_MBYTE |
| if (c >= 0x80) |
| { |
| /* UTF-8: above 0x80 need to check the value */ |
| if (enc_utf8) |
| return utf_char2cells(c); |
| /* DBCS: double-byte means double-width, except for euc-jp with first |
| * byte 0x8e */ |
| if (enc_dbcs != 0 && c >= 0x100) |
| { |
| if (enc_dbcs == DBCS_JPNU && ((unsigned)c >> 8) == 0x8e) |
| return 1; |
| return 2; |
| } |
| } |
| #endif |
| return (chartab[c & 0xff] & CT_CELL_MASK); |
| } |
| |
| /* |
| * Return number of display cells occupied by character at "*p". |
| * A TAB is counted as two cells: "^I" or four: "<09>". |
| */ |
| int |
| ptr2cells(p) |
| char_u *p; |
| { |
| #ifdef FEAT_MBYTE |
| /* For UTF-8 we need to look at more bytes if the first byte is >= 0x80. */ |
| if (enc_utf8 && *p >= 0x80) |
| return utf_ptr2cells(p); |
| /* For DBCS we can tell the cell count from the first byte. */ |
| #endif |
| return (chartab[*p] & CT_CELL_MASK); |
| } |
| |
| /* |
| * Return the number of characters string "s" will take on the screen, |
| * counting TABs as two characters: "^I". |
| */ |
| int |
| vim_strsize(s) |
| char_u *s; |
| { |
| return vim_strnsize(s, (int)MAXCOL); |
| } |
| |
| /* |
| * Return the number of characters string "s[len]" will take on the screen, |
| * counting TABs as two characters: "^I". |
| */ |
| int |
| vim_strnsize(s, len) |
| char_u *s; |
| int len; |
| { |
| int size = 0; |
| |
| while (*s != NUL && --len >= 0) |
| { |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| int l = (*mb_ptr2len)(s); |
| |
| size += ptr2cells(s); |
| s += l; |
| len -= l - 1; |
| } |
| else |
| #endif |
| size += byte2cells(*s++); |
| } |
| return size; |
| } |
| |
| /* |
| * Return the number of characters 'c' will take on the screen, taking |
| * into account the size of a tab. |
| * Use a define to make it fast, this is used very often!!! |
| * Also see getvcol() below. |
| */ |
| |
| #define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \ |
| if (*(p) == TAB && (!(wp)->w_p_list || lcs_tab1)) \ |
| { \ |
| int ts; \ |
| ts = (buf)->b_p_ts; \ |
| return (int)(ts - (col % ts)); \ |
| } \ |
| else \ |
| return ptr2cells(p); |
| |
| #if defined(FEAT_VREPLACE) || defined(FEAT_EX_EXTRA) || defined(FEAT_GUI) \ |
| || defined(FEAT_VIRTUALEDIT) || defined(PROTO) |
| int |
| chartabsize(p, col) |
| char_u *p; |
| colnr_T col; |
| { |
| RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, p, col) |
| } |
| #endif |
| |
| #ifdef FEAT_LINEBREAK |
| static int |
| win_chartabsize(wp, p, col) |
| win_T *wp; |
| char_u *p; |
| colnr_T col; |
| { |
| RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, p, col) |
| } |
| #endif |
| |
| /* |
| * return the number of characters the string 's' will take on the screen, |
| * taking into account the size of a tab |
| */ |
| int |
| linetabsize(s) |
| char_u *s; |
| { |
| colnr_T col = 0; |
| |
| while (*s != NUL) |
| col += lbr_chartabsize_adv(&s, col); |
| return (int)col; |
| } |
| |
| /* |
| * Like linetabsize(), but for a given window instead of the current one. |
| */ |
| int |
| win_linetabsize(wp, p, len) |
| win_T *wp; |
| char_u *p; |
| colnr_T len; |
| { |
| colnr_T col = 0; |
| char_u *s; |
| |
| for (s = p; *s != NUL && (len == MAXCOL || s < p + len); mb_ptr_adv(s)) |
| col += win_lbr_chartabsize(wp, s, col, NULL); |
| return (int)col; |
| } |
| |
| /* |
| * Return TRUE if 'c' is a normal identifier character: |
| * Letters and characters from the 'isident' option. |
| */ |
| int |
| vim_isIDc(c) |
| int c; |
| { |
| return (c > 0 && c < 0x100 && (chartab[c] & CT_ID_CHAR)); |
| } |
| |
| /* |
| * return TRUE if 'c' is a keyword character: Letters and characters from |
| * 'iskeyword' option for current buffer. |
| * For multi-byte characters mb_get_class() is used (builtin rules). |
| */ |
| int |
| vim_iswordc(c) |
| int c; |
| { |
| #ifdef FEAT_MBYTE |
| if (c >= 0x100) |
| { |
| if (enc_dbcs != 0) |
| return dbcs_class((unsigned)c >> 8, c & 0xff) >= 2; |
| if (enc_utf8) |
| return utf_class(c) >= 2; |
| } |
| #endif |
| return (c > 0 && c < 0x100 && GET_CHARTAB(curbuf, c) != 0); |
| } |
| |
| /* |
| * Just like vim_iswordc() but uses a pointer to the (multi-byte) character. |
| */ |
| int |
| vim_iswordp(p) |
| char_u *p; |
| { |
| #ifdef FEAT_MBYTE |
| if (has_mbyte && MB_BYTE2LEN(*p) > 1) |
| return mb_get_class(p) >= 2; |
| #endif |
| return GET_CHARTAB(curbuf, *p) != 0; |
| } |
| |
| #if defined(FEAT_SYN_HL) || defined(PROTO) |
| int |
| vim_iswordc_buf(p, buf) |
| char_u *p; |
| buf_T *buf; |
| { |
| # ifdef FEAT_MBYTE |
| if (has_mbyte && MB_BYTE2LEN(*p) > 1) |
| return mb_get_class(p) >= 2; |
| # endif |
| return (GET_CHARTAB(buf, *p) != 0); |
| } |
| #endif |
| |
| /* |
| * return TRUE if 'c' is a valid file-name character |
| * Assume characters above 0x100 are valid (multi-byte). |
| */ |
| int |
| vim_isfilec(c) |
| int c; |
| { |
| return (c >= 0x100 || (c > 0 && (chartab[c] & CT_FNAME_CHAR))); |
| } |
| |
| /* |
| * return TRUE if 'c' is a valid file-name character or a wildcard character |
| * Assume characters above 0x100 are valid (multi-byte). |
| * Explicitly interpret ']' as a wildcard character as mch_has_wildcard("]") |
| * returns false. |
| */ |
| int |
| vim_isfilec_or_wc(c) |
| int c; |
| { |
| char_u buf[2]; |
| |
| buf[0] = (char_u)c; |
| buf[1] = NUL; |
| return vim_isfilec(c) || c == ']' || mch_has_wildcard(buf); |
| } |
| |
| /* |
| * return TRUE if 'c' is a printable character |
| * Assume characters above 0x100 are printable (multi-byte), except for |
| * Unicode. |
| */ |
| int |
| vim_isprintc(c) |
| int c; |
| { |
| #ifdef FEAT_MBYTE |
| if (enc_utf8 && c >= 0x100) |
| return utf_printable(c); |
| #endif |
| return (c >= 0x100 || (c > 0 && (chartab[c] & CT_PRINT_CHAR))); |
| } |
| |
| /* |
| * Strict version of vim_isprintc(c), don't return TRUE if "c" is the head |
| * byte of a double-byte character. |
| */ |
| int |
| vim_isprintc_strict(c) |
| int c; |
| { |
| #ifdef FEAT_MBYTE |
| if (enc_dbcs != 0 && c < 0x100 && MB_BYTE2LEN(c) > 1) |
| return FALSE; |
| if (enc_utf8 && c >= 0x100) |
| return utf_printable(c); |
| #endif |
| return (c >= 0x100 || (c > 0 && (chartab[c] & CT_PRINT_CHAR))); |
| } |
| |
| /* |
| * like chartabsize(), but also check for line breaks on the screen |
| */ |
| int |
| lbr_chartabsize(s, col) |
| unsigned char *s; |
| colnr_T col; |
| { |
| #ifdef FEAT_LINEBREAK |
| if (!curwin->w_p_lbr && *p_sbr == NUL) |
| { |
| #endif |
| #ifdef FEAT_MBYTE |
| if (curwin->w_p_wrap) |
| return win_nolbr_chartabsize(curwin, s, col, NULL); |
| #endif |
| RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, s, col) |
| #ifdef FEAT_LINEBREAK |
| } |
| return win_lbr_chartabsize(curwin, s, col, NULL); |
| #endif |
| } |
| |
| /* |
| * Call lbr_chartabsize() and advance the pointer. |
| */ |
| int |
| lbr_chartabsize_adv(s, col) |
| char_u **s; |
| colnr_T col; |
| { |
| int retval; |
| |
| retval = lbr_chartabsize(*s, col); |
| mb_ptr_adv(*s); |
| return retval; |
| } |
| |
| /* |
| * This function is used very often, keep it fast!!!! |
| * |
| * If "headp" not NULL, set *headp to the size of what we for 'showbreak' |
| * string at start of line. Warning: *headp is only set if it's a non-zero |
| * value, init to 0 before calling. |
| */ |
| /*ARGSUSED*/ |
| int |
| win_lbr_chartabsize(wp, s, col, headp) |
| win_T *wp; |
| char_u *s; |
| colnr_T col; |
| int *headp; |
| { |
| #ifdef FEAT_LINEBREAK |
| int c; |
| int size; |
| colnr_T col2; |
| colnr_T colmax; |
| int added; |
| # ifdef FEAT_MBYTE |
| int mb_added = 0; |
| # else |
| # define mb_added 0 |
| # endif |
| int numberextra; |
| char_u *ps; |
| int tab_corr = (*s == TAB); |
| int n; |
| |
| /* |
| * No 'linebreak' and 'showbreak': return quickly. |
| */ |
| if (!wp->w_p_lbr && *p_sbr == NUL) |
| #endif |
| { |
| #ifdef FEAT_MBYTE |
| if (wp->w_p_wrap) |
| return win_nolbr_chartabsize(wp, s, col, headp); |
| #endif |
| RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, s, col) |
| } |
| |
| #ifdef FEAT_LINEBREAK |
| /* |
| * First get normal size, without 'linebreak' |
| */ |
| size = win_chartabsize(wp, s, col); |
| c = *s; |
| |
| /* |
| * If 'linebreak' set check at a blank before a non-blank if the line |
| * needs a break here |
| */ |
| if (wp->w_p_lbr |
| && vim_isbreak(c) |
| && !vim_isbreak(s[1]) |
| && !wp->w_p_list |
| && wp->w_p_wrap |
| # ifdef FEAT_VERTSPLIT |
| && wp->w_width != 0 |
| # endif |
| ) |
| { |
| /* |
| * Count all characters from first non-blank after a blank up to next |
| * non-blank after a blank. |
| */ |
| numberextra = win_col_off(wp); |
| col2 = col; |
| colmax = W_WIDTH(wp) - numberextra; |
| if (col >= colmax) |
| { |
| n = colmax + win_col_off2(wp); |
| if (n > 0) |
| colmax += (((col - colmax) / n) + 1) * n; |
| } |
| |
| for (;;) |
| { |
| ps = s; |
| mb_ptr_adv(s); |
| c = *s; |
| if (!(c != NUL |
| && (vim_isbreak(c) |
| || (!vim_isbreak(c) |
| && (col2 == col || !vim_isbreak(*ps)))))) |
| break; |
| |
| col2 += win_chartabsize(wp, s, col2); |
| if (col2 >= colmax) /* doesn't fit */ |
| { |
| size = colmax - col; |
| tab_corr = FALSE; |
| break; |
| } |
| } |
| } |
| # ifdef FEAT_MBYTE |
| else if (has_mbyte && size == 2 && MB_BYTE2LEN(*s) > 1 |
| && wp->w_p_wrap && in_win_border(wp, col)) |
| { |
| ++size; /* Count the ">" in the last column. */ |
| mb_added = 1; |
| } |
| # endif |
| |
| /* |
| * May have to add something for 'showbreak' string at start of line |
| * Set *headp to the size of what we add. |
| */ |
| added = 0; |
| if (*p_sbr != NUL && wp->w_p_wrap && col != 0) |
| { |
| numberextra = win_col_off(wp); |
| col += numberextra + mb_added; |
| if (col >= (colnr_T)W_WIDTH(wp)) |
| { |
| col -= W_WIDTH(wp); |
| numberextra = W_WIDTH(wp) - (numberextra - win_col_off2(wp)); |
| if (numberextra > 0) |
| col = col % numberextra; |
| } |
| if (col == 0 || col + size > (colnr_T)W_WIDTH(wp)) |
| { |
| added = vim_strsize(p_sbr); |
| if (tab_corr) |
| size += (added / wp->w_buffer->b_p_ts) * wp->w_buffer->b_p_ts; |
| else |
| size += added; |
| if (col != 0) |
| added = 0; |
| } |
| } |
| if (headp != NULL) |
| *headp = added + mb_added; |
| return size; |
| #endif |
| } |
| |
| #if defined(FEAT_MBYTE) || defined(PROTO) |
| /* |
| * Like win_lbr_chartabsize(), except that we know 'linebreak' is off and |
| * 'wrap' is on. This means we need to check for a double-byte character that |
| * doesn't fit at the end of the screen line. |
| */ |
| static int |
| win_nolbr_chartabsize(wp, s, col, headp) |
| win_T *wp; |
| char_u *s; |
| colnr_T col; |
| int *headp; |
| { |
| int n; |
| |
| if (*s == TAB && (!wp->w_p_list || lcs_tab1)) |
| { |
| n = wp->w_buffer->b_p_ts; |
| return (int)(n - (col % n)); |
| } |
| n = ptr2cells(s); |
| /* Add one cell for a double-width character in the last column of the |
| * window, displayed with a ">". */ |
| if (n == 2 && MB_BYTE2LEN(*s) > 1 && in_win_border(wp, col)) |
| { |
| if (headp != NULL) |
| *headp = 1; |
| return 3; |
| } |
| return n; |
| } |
| |
| /* |
| * Return TRUE if virtual column "vcol" is in the rightmost column of window |
| * "wp". |
| */ |
| int |
| in_win_border(wp, vcol) |
| win_T *wp; |
| colnr_T vcol; |
| { |
| colnr_T width1; /* width of first line (after line number) */ |
| colnr_T width2; /* width of further lines */ |
| |
| #ifdef FEAT_VERTSPLIT |
| if (wp->w_width == 0) /* there is no border */ |
| return FALSE; |
| #endif |
| width1 = W_WIDTH(wp) - win_col_off(wp); |
| if (vcol < width1 - 1) |
| return FALSE; |
| if (vcol == width1 - 1) |
| return TRUE; |
| width2 = width1 + win_col_off2(wp); |
| return ((vcol - width1) % width2 == width2 - 1); |
| } |
| #endif /* FEAT_MBYTE */ |
| |
| /* |
| * Get virtual column number of pos. |
| * start: on the first position of this character (TAB, ctrl) |
| * cursor: where the cursor is on this character (first char, except for TAB) |
| * end: on the last position of this character (TAB, ctrl) |
| * |
| * This is used very often, keep it fast! |
| */ |
| void |
| getvcol(wp, pos, start, cursor, end) |
| win_T *wp; |
| pos_T *pos; |
| colnr_T *start; |
| colnr_T *cursor; |
| colnr_T *end; |
| { |
| colnr_T vcol; |
| char_u *ptr; /* points to current char */ |
| char_u *posptr; /* points to char at pos->col */ |
| int incr; |
| int head; |
| int ts = wp->w_buffer->b_p_ts; |
| int c; |
| |
| vcol = 0; |
| ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE); |
| posptr = ptr + pos->col; |
| |
| /* |
| * This function is used very often, do some speed optimizations. |
| * When 'list', 'linebreak' and 'showbreak' are not set use a simple loop. |
| * Also use this when 'list' is set but tabs take their normal size. |
| */ |
| if ((!wp->w_p_list || lcs_tab1 != NUL) |
| #ifdef FEAT_LINEBREAK |
| && !wp->w_p_lbr && *p_sbr == NUL |
| #endif |
| ) |
| { |
| #ifndef FEAT_MBYTE |
| head = 0; |
| #endif |
| for (;;) |
| { |
| #ifdef FEAT_MBYTE |
| head = 0; |
| #endif |
| c = *ptr; |
| /* make sure we don't go past the end of the line */ |
| if (c == NUL) |
| { |
| incr = 1; /* NUL at end of line only takes one column */ |
| break; |
| } |
| /* A tab gets expanded, depending on the current column */ |
| if (c == TAB) |
| incr = ts - (vcol % ts); |
| else |
| { |
| #ifdef FEAT_MBYTE |
| if (has_mbyte) |
| { |
| /* For utf-8, if the byte is >= 0x80, need to look at |
| * further bytes to find the cell width. */ |
| if (enc_utf8 && c >= 0x80) |
| incr = utf_ptr2cells(ptr); |
| else |
| incr = CHARSIZE(c); |
| |
| /* If a double-cell char doesn't fit at the end of a line |
| * it wraps to the next line, it's like this char is three |
| * cells wide. */ |
| if (incr == 2 && wp->w_p_wrap && in_win_border(wp, vcol)) |
| { |
| ++incr; |
| head = 1; |
| } |
| } |
| else |
| #endif |
| incr = CHARSIZE(c); |
| } |
| |
| if (ptr >= posptr) /* character at pos->col */ |
| break; |
| |
| vcol += incr; |
| mb_ptr_adv(ptr); |
| } |
| } |
| else |
| { |
| for (;;) |
| { |
| /* A tab gets expanded, depending on the current column */ |
| head = 0; |
| incr = win_lbr_chartabsize(wp, ptr, vcol, &head); |
| /* make sure we don't go past the end of the line */ |
| if (*ptr == NUL) |
| { |
| incr = 1; /* NUL at end of line only takes one column */ |
| break; |
| } |
| |
| if (ptr >= posptr) /* character at pos->col */ |
| break; |
| |
| vcol += incr; |
| mb_ptr_adv(ptr); |
| } |
| } |
| if (start != NULL) |
| *start = vcol + head; |
| if (end != NULL) |
| *end = vcol + incr - 1; |
| if (cursor != NULL) |
| { |
| if (*ptr == TAB |
| && (State & NORMAL) |
| && !wp->w_p_list |
| && !virtual_active() |
| #ifdef FEAT_VISUAL |
| && !(VIsual_active |
| && (*p_sel == 'e' || ltoreq(*pos, VIsual))) |
| #endif |
| ) |
| *cursor = vcol + incr - 1; /* cursor at end */ |
| else |
| *cursor = vcol + head; /* cursor at start */ |
| } |
| } |
| |
| /* |
| * Get virtual cursor column in the current window, pretending 'list' is off. |
| */ |
| colnr_T |
| getvcol_nolist(posp) |
| pos_T *posp; |
| { |
| int list_save = curwin->w_p_list; |
| colnr_T vcol; |
| |
| curwin->w_p_list = FALSE; |
| getvcol(curwin, posp, NULL, &vcol, NULL); |
| curwin->w_p_list = list_save; |
| return vcol; |
| } |
| |
| #if defined(FEAT_VIRTUALEDIT) || defined(PROTO) |
| /* |
| * Get virtual column in virtual mode. |
| */ |
| void |
| getvvcol(wp, pos, start, cursor, end) |
| win_T *wp; |
| pos_T *pos; |
| colnr_T *start; |
| colnr_T *cursor; |
| colnr_T *end; |
| { |
| colnr_T col; |
| colnr_T coladd; |
| colnr_T endadd; |
| # ifdef FEAT_MBYTE |
| char_u *ptr; |
| # endif |
| |
| if (virtual_active()) |
| { |
| /* For virtual mode, only want one value */ |
| getvcol(wp, pos, &col, NULL, NULL); |
| |
| coladd = pos->coladd; |
| endadd = 0; |
| # ifdef FEAT_MBYTE |
| /* Cannot put the cursor on part of a wide character. */ |
| ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE); |
| if (pos->col < STRLEN(ptr)) |
| { |
| int c = (*mb_ptr2char)(ptr + pos->col); |
| |
| if (c != TAB && vim_isprintc(c)) |
| { |
| endadd = char2cells(c) - 1; |
| if (coladd > endadd) /* past end of line */ |
| endadd = 0; |
| else |
| coladd = 0; |
| } |
| } |
| # endif |
| col += coladd; |
| if (start != NULL) |
| *start = col; |
| if (cursor != NULL) |
| *cursor = col; |
| if (end != NULL) |
| *end = col + endadd; |
| } |
| else |
| getvcol(wp, pos, start, cursor, end); |
| } |
| #endif |
| |
| #if defined(FEAT_VISUAL) || defined(PROTO) |
| /* |
| * Get the leftmost and rightmost virtual column of pos1 and pos2. |
| * Used for Visual block mode. |
| */ |
| void |
| getvcols(wp, pos1, pos2, left, right) |
| win_T *wp; |
| pos_T *pos1, *pos2; |
| colnr_T *left, *right; |
| { |
| colnr_T from1, from2, to1, to2; |
| |
| if (ltp(pos1, pos2)) |
| { |
| getvvcol(wp, pos1, &from1, NULL, &to1); |
| getvvcol(wp, pos2, &from2, NULL, &to2); |
| } |
| else |
| { |
| getvvcol(wp, pos2, &from1, NULL, &to1); |
| getvvcol(wp, pos1, &from2, NULL, &to2); |
| } |
| if (from2 < from1) |
| *left = from2; |
| else |
| *left = from1; |
| if (to2 > to1) |
| { |
| if (*p_sel == 'e' && from2 - 1 >= to1) |
| *right = from2 - 1; |
| else |
| *right = to2; |
| } |
| else |
| *right = to1; |
| } |
| #endif |
| |
| /* |
| * skipwhite: skip over ' ' and '\t'. |
| */ |
| char_u * |
| skipwhite(p) |
| char_u *p; |
| { |
| while (vim_iswhite(*p)) /* skip to next non-white */ |
| ++p; |
| return p; |
| } |
| |
| /* |
| * skip over digits |
| */ |
| char_u * |
| skipdigits(p) |
| char_u *p; |
| { |
| while (VIM_ISDIGIT(*p)) /* skip to next non-digit */ |
| ++p; |
| return p; |
| } |
| |
| #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) || defined(PROTO) |
| /* |
| * skip over digits and hex characters |
| */ |
| char_u * |
| skiphex(p) |
| char_u *p; |
| { |
| while (vim_isxdigit(*p)) /* skip to next non-digit */ |
| ++p; |
| return p; |
| } |
| #endif |
| |
| #if defined(FEAT_EX_EXTRA) || defined(PROTO) |
| /* |
| * skip to digit (or NUL after the string) |
| */ |
| char_u * |
| skiptodigit(p) |
| char_u *p; |
| { |
| while (*p != NUL && !VIM_ISDIGIT(*p)) /* skip to next digit */ |
| ++p; |
| return p; |
| } |
| |
| /* |
| * skip to hex character (or NUL after the string) |
| */ |
| char_u * |
| skiptohex(p) |
| char_u *p; |
| { |
| while (*p != NUL && !vim_isxdigit(*p)) /* skip to next digit */ |
| ++p; |
| return p; |
| } |
| #endif |
| |
| /* |
| * Variant of isdigit() that can handle characters > 0x100. |
| * We don't use isdigit() here, because on some systems it also considers |
| * superscript 1 to be a digit. |
| * Use the VIM_ISDIGIT() macro for simple arguments. |
| */ |
| int |
| vim_isdigit(c) |
| int c; |
| { |
| return (c >= '0' && c <= '9'); |
| } |
| |
| /* |
| * Variant of isxdigit() that can handle characters > 0x100. |
| * We don't use isxdigit() here, because on some systems it also considers |
| * superscript 1 to be a digit. |
| */ |
| int |
| vim_isxdigit(c) |
| int c; |
| { |
| return (c >= '0' && c <= '9') |
| || (c >= 'a' && c <= 'f') |
| || (c >= 'A' && c <= 'F'); |
| } |
| |
| #if defined(FEAT_MBYTE) || defined(PROTO) |
| /* |
| * Vim's own character class functions. These exist because many library |
| * islower()/toupper() etc. do not work properly: they crash when used with |
| * invalid values or can't handle latin1 when the locale is C. |
| * Speed is most important here. |
| */ |
| #define LATIN1LOWER 'l' |
| #define LATIN1UPPER 'U' |
| |
| /* !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]%_'abcdefghijklmnopqrstuvwxyz{|}~ ¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ */ |
| static char_u latin1flags[257] = " UUUUUUUUUUUUUUUUUUUUUUUUUU llllllllllllllllllllllllll UUUUUUUUUUUUUUUUUUUUUUU UUUUUUUllllllllllllllllllllllll llllllll"; |
| static char_u latin1upper[257] = " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~
¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ÷ØÙÚÛÜÝÞÿ"; |
| static char_u latin1lower[257] = " !\"#$%&'()*+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~
¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿àáâãäåæçèéêëìíîïðñòóôõö×øùúûüýþßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"; |
| |
| int |
| vim_islower(c) |
| int c; |
| { |
| if (c <= '@') |
| return FALSE; |
| if (c >= 0x80) |
| { |
| if (enc_utf8) |
| return utf_islower(c); |
| if (c >= 0x100) |
| { |
| #ifdef HAVE_ISWLOWER |
| if (has_mbyte) |
| return iswlower(c); |
| #endif |
| /* islower() can't handle these chars and may crash */ |
| return FALSE; |
| } |
| if (enc_latin1like) |
| return (latin1flags[c] & LATIN1LOWER) == LATIN1LOWER; |
| } |
| return islower(c); |
| } |
| |
| int |
| vim_isupper(c) |
| int c; |
| { |
| if (c <= '@') |
| return FALSE; |
| if (c >= 0x80) |
| { |
| if (enc_utf8) |
| return utf_isupper(c); |
| if (c >= 0x100) |
| { |
| #ifdef HAVE_ISWUPPER |
| if (has_mbyte) |
| return iswupper(c); |
| #endif |
| /* islower() can't handle these chars and may crash */ |
| return FALSE; |
| } |
| if (enc_latin1like) |
| return (latin1flags[c] & LATIN1UPPER) == LATIN1UPPER; |
| } |
| return isupper(c); |
| } |
| |
| int |
| vim_toupper(c) |
| int c; |
| { |
| if (c <= '@') |
| return c; |
| if (c >= 0x80) |
| { |
| if (enc_utf8) |
| return utf_toupper(c); |
| if (c >= 0x100) |
| { |
| #ifdef HAVE_TOWUPPER |
| if (has_mbyte) |
| return towupper(c); |
| #endif |
| /* toupper() can't handle these chars and may crash */ |
| return c; |
| } |
| if (enc_latin1like) |
| return latin1upper[c]; |
| } |
| return TOUPPER_LOC(c); |
| } |
| |
| int |
| vim_tolower(c) |
| int c; |
| { |
| if (c <= '@') |
| return c; |
| if (c >= 0x80) |
| { |
| if (enc_utf8) |
| return utf_tolower(c); |
| if (c >= 0x100) |
| { |
| #ifdef HAVE_TOWLOWER |
| if (has_mbyte) |
| return towlower(c); |
| #endif |
| /* tolower() can't handle these chars and may crash */ |
| return c; |
| } |
| if (enc_latin1like) |
| return latin1lower[c]; |
| } |
| return TOLOWER_LOC(c); |
| } |
| #endif |
| |
| /* |
| * skiptowhite: skip over text until ' ' or '\t' or NUL. |
| */ |
| char_u * |
| skiptowhite(p) |
| char_u *p; |
| { |
| while (*p != ' ' && *p != '\t' && *p != NUL) |
| ++p; |
| return p; |
| } |
| |
| #if defined(FEAT_LISTCMDS) || defined(FEAT_SIGNS) || defined(FEAT_SNIFF) \ |
| || defined(PROTO) |
| /* |
| * skiptowhite_esc: Like skiptowhite(), but also skip escaped chars |
| */ |
| char_u * |
| skiptowhite_esc(p) |
| char_u *p; |
| { |
| while (*p != ' ' && *p != '\t' && *p != NUL) |
| { |
| if ((*p == '\\' || *p == Ctrl_V) && *(p + 1) != NUL) |
| ++p; |
| ++p; |
| } |
| return p; |
| } |
| #endif |
| |
| /* |
| * Getdigits: Get a number from a string and skip over it. |
| * Note: the argument is a pointer to a char_u pointer! |
| */ |
| long |
| getdigits(pp) |
| char_u **pp; |
| { |
| char_u *p; |
| long retval; |
| |
| p = *pp; |
| retval = atol((char *)p); |
| if (*p == '-') /* skip negative sign */ |
| ++p; |
| p = skipdigits(p); /* skip to next non-digit */ |
| *pp = p; |
| return retval; |
| } |
| |
| /* |
| * Return TRUE if "lbuf" is empty or only contains blanks. |
| */ |
| int |
| vim_isblankline(lbuf) |
| char_u *lbuf; |
| { |
| char_u *p; |
| |
| p = skipwhite(lbuf); |
| return (*p == NUL || *p == '\r' || *p == '\n'); |
| } |
| |
| /* |
| * Convert a string into a long and/or unsigned long, taking care of |
| * hexadecimal and octal numbers. Accepts a '-' sign. |
| * If "hexp" is not NULL, returns a flag to indicate the type of the number: |
| * 0 decimal |
| * '0' octal |
| * 'X' hex |
| * 'x' hex |
| * If "len" is not NULL, the length of the number in characters is returned. |
| * If "nptr" is not NULL, the signed result is returned in it. |
| * If "unptr" is not NULL, the unsigned result is returned in it. |
| * If "unptr" is not NULL, the unsigned result is returned in it. |
| * If "dooct" is non-zero recognize octal numbers, when > 1 always assume |
| * octal number. |
| * If "dohex" is non-zero recognize hex numbers, when > 1 always assume |
| * hex number. |
| */ |
| void |
| vim_str2nr(start, hexp, len, dooct, dohex, nptr, unptr) |
| char_u *start; |
| int *hexp; /* return: type of number 0 = decimal, 'x' |
| or 'X' is hex, '0' = octal */ |
| int *len; /* return: detected length of number */ |
| int dooct; /* recognize octal number */ |
| int dohex; /* recognize hex number */ |
| long *nptr; /* return: signed result */ |
| unsigned long *unptr; /* return: unsigned result */ |
| { |
| char_u *ptr = start; |
| int hex = 0; /* default is decimal */ |
| int negative = FALSE; |
| unsigned long un = 0; |
| int n; |
| |
| if (ptr[0] == '-') |
| { |
| negative = TRUE; |
| ++ptr; |
| } |
| |
| /* Recognize hex and octal. */ |
| if (ptr[0] == '0' && ptr[1] != '8' && ptr[1] != '9') |
| { |
| hex = ptr[1]; |
| if (dohex && (hex == 'X' || hex == 'x') && vim_isxdigit(ptr[2])) |
| ptr += 2; /* hexadecimal */ |
| else |
| { |
| hex = 0; /* default is decimal */ |
| if (dooct) |
| { |
| /* Don't interpret "0", "08" or "0129" as octal. */ |
| for (n = 1; VIM_ISDIGIT(ptr[n]); ++n) |
| { |
| if (ptr[n] > '7') |
| { |
| hex = 0; /* can't be octal */ |
| break; |
| } |
| if (ptr[n] > '0') |
| hex = '0'; /* assume octal */ |
| } |
| } |
| } |
| } |
| |
| /* |
| * Do the string-to-numeric conversion "manually" to avoid sscanf quirks. |
| */ |
| if (hex == '0' || dooct > 1) |
| { |
| /* octal */ |
| while ('0' <= *ptr && *ptr <= '7') |
| { |
| un = 8 * un + (unsigned long)(*ptr - '0'); |
| ++ptr; |
| } |
| } |
| else if (hex != 0 || dohex > 1) |
| { |
| /* hex */ |
| while (vim_isxdigit(*ptr)) |
| { |
| un = 16 * un + (unsigned long)hex2nr(*ptr); |
| ++ptr; |
| } |
| } |
| else |
| { |
| /* decimal */ |
| while (VIM_ISDIGIT(*ptr)) |
| { |
| un = 10 * un + (unsigned long)(*ptr - '0'); |
| ++ptr; |
| } |
| } |
| |
| if (hexp != NULL) |
| *hexp = hex; |
| if (len != NULL) |
| *len = (int)(ptr - start); |
| if (nptr != NULL) |
| { |
| if (negative) /* account for leading '-' for decimal numbers */ |
| *nptr = -(long)un; |
| else |
| *nptr = (long)un; |
| } |
| if (unptr != NULL) |
| *unptr = un; |
| } |
| |
| /* |
| * Return the value of a single hex character. |
| * Only valid when the argument is '0' - '9', 'A' - 'F' or 'a' - 'f'. |
| */ |
| int |
| hex2nr(c) |
| int c; |
| { |
| if (c >= 'a' && c <= 'f') |
| return c - 'a' + 10; |
| if (c >= 'A' && c <= 'F') |
| return c - 'A' + 10; |
| return c - '0'; |
| } |
| |
| #if defined(FEAT_TERMRESPONSE) \ |
| || (defined(FEAT_GUI_GTK) && defined(FEAT_WINDOWS)) || defined(PROTO) |
| /* |
| * Convert two hex characters to a byte. |
| * Return -1 if one of the characters is not hex. |
| */ |
| int |
| hexhex2nr(p) |
| char_u *p; |
| { |
| if (!vim_isxdigit(p[0]) || !vim_isxdigit(p[1])) |
| return -1; |
| return (hex2nr(p[0]) << 4) + hex2nr(p[1]); |
| } |
| #endif |
| |
| /* |
| * Return TRUE if "str" starts with a backslash that should be removed. |
| * For MS-DOS, WIN32 and OS/2 this is only done when the character after the |
| * backslash is not a normal file name character. |
| * '$' is a valid file name character, we don't remove the backslash before |
| * it. This means it is not possible to use an environment variable after a |
| * backslash. "C:\$VIM\doc" is taken literally, only "$VIM\doc" works. |
| * Although "\ name" is valid, the backslash in "Program\ files" must be |
| * removed. Assume a file name doesn't start with a space. |
| * For multi-byte names, never remove a backslash before a non-ascii |
| * character, assume that all multi-byte characters are valid file name |
| * characters. |
| */ |
| int |
| rem_backslash(str) |
| char_u *str; |
| { |
| #ifdef BACKSLASH_IN_FILENAME |
| return (str[0] == '\\' |
| # ifdef FEAT_MBYTE |
| && str[1] < 0x80 |
| # endif |
| && (str[1] == ' ' |
| || (str[1] != NUL |
| && str[1] != '*' |
| && str[1] != '?' |
| && !vim_isfilec(str[1])))); |
| #else |
| return (str[0] == '\\' && str[1] != NUL); |
| #endif |
| } |
| |
| /* |
| * Halve the number of backslashes in a file name argument. |
| * For MS-DOS we only do this if the character after the backslash |
| * is not a normal file character. |
| */ |
| void |
| backslash_halve(p) |
| char_u *p; |
| { |
| for ( ; *p; ++p) |
| if (rem_backslash(p)) |
| mch_memmove(p, p + 1, STRLEN(p)); |
| } |
| |
| /* |
| * backslash_halve() plus save the result in allocated memory. |
| */ |
| char_u * |
| backslash_halve_save(p) |
| char_u *p; |
| { |
| char_u *res; |
| |
| res = vim_strsave(p); |
| if (res == NULL) |
| return p; |
| backslash_halve(res); |
| return res; |
| } |
| |
| #if (defined(EBCDIC) && defined(FEAT_POSTSCRIPT)) || defined(PROTO) |
| /* |
| * Table for EBCDIC to ASCII conversion unashamedly taken from xxd.c! |
| * The first 64 entries have been added to map control characters defined in |
| * ascii.h |
| */ |
| static char_u ebcdic2ascii_tab[256] = |
| { |
| 0000, 0001, 0002, 0003, 0004, 0011, 0006, 0177, |
| 0010, 0011, 0012, 0013, 0014, 0015, 0016, 0017, |
| 0020, 0021, 0022, 0023, 0024, 0012, 0010, 0027, |
| 0030, 0031, 0032, 0033, 0033, 0035, 0036, 0037, |
| 0040, 0041, 0042, 0043, 0044, 0045, 0046, 0047, |
| 0050, 0051, 0052, 0053, 0054, 0055, 0056, 0057, |
| 0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067, |
| 0070, 0071, 0072, 0073, 0074, 0075, 0076, 0077, |
| 0040, 0240, 0241, 0242, 0243, 0244, 0245, 0246, |
| 0247, 0250, 0325, 0056, 0074, 0050, 0053, 0174, |
| 0046, 0251, 0252, 0253, 0254, 0255, 0256, 0257, |
| 0260, 0261, 0041, 0044, 0052, 0051, 0073, 0176, |
| 0055, 0057, 0262, 0263, 0264, 0265, 0266, 0267, |
| 0270, 0271, 0313, 0054, 0045, 0137, 0076, 0077, |
| 0272, 0273, 0274, 0275, 0276, 0277, 0300, 0301, |
| 0302, 0140, 0072, 0043, 0100, 0047, 0075, 0042, |
| 0303, 0141, 0142, 0143, 0144, 0145, 0146, 0147, |
| 0150, 0151, 0304, 0305, 0306, 0307, 0310, 0311, |
| 0312, 0152, 0153, 0154, 0155, 0156, 0157, 0160, |
| 0161, 0162, 0136, 0314, 0315, 0316, 0317, 0320, |
| 0321, 0345, 0163, 0164, 0165, 0166, 0167, 0170, |
| 0171, 0172, 0322, 0323, 0324, 0133, 0326, 0327, |
| 0330, 0331, 0332, 0333, 0334, 0335, 0336, 0337, |
| 0340, 0341, 0342, 0343, 0344, 0135, 0346, 0347, |
| 0173, 0101, 0102, 0103, 0104, 0105, 0106, 0107, |
| 0110, 0111, 0350, 0351, 0352, 0353, 0354, 0355, |
| 0175, 0112, 0113, 0114, 0115, 0116, 0117, 0120, |
| 0121, 0122, 0356, 0357, 0360, 0361, 0362, 0363, |
| 0134, 0237, 0123, 0124, 0125, 0126, 0127, 0130, |
| 0131, 0132, 0364, 0365, 0366, 0367, 0370, 0371, |
| 0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067, |
| 0070, 0071, 0372, 0373, 0374, 0375, 0376, 0377 |
| }; |
| |
| /* |
| * Convert a buffer worth of characters from EBCDIC to ASCII. Only useful if |
| * wanting 7-bit ASCII characters out the other end. |
| */ |
| void |
| ebcdic2ascii(buffer, len) |
| char_u *buffer; |
| int len; |
| { |
| int i; |
| |
| for (i = 0; i < len; i++) |
| buffer[i] = ebcdic2ascii_tab[buffer[i]]; |
| } |
| #endif |