| /* vi:set ts=8 sts=4 sw=4: |
| * |
| * VIM - Vi IMproved by Bram Moolenaar |
| * Multibyte extensions partly by Sung-Hoon Baek |
| * |
| * 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. |
| */ |
| /* |
| * mbyte.c: Code specifically for handling multi-byte characters. |
| * |
| * The encoding used in the core is set with 'encoding'. When 'encoding' is |
| * changed, the following four variables are set (for speed). |
| * Currently these types of character encodings are supported: |
| * |
| * "enc_dbcs" When non-zero it tells the type of double byte character |
| * encoding (Chinese, Korean, Japanese, etc.). |
| * The cell width on the display is equal to the number of |
| * bytes. (exception: DBCS_JPNU with first byte 0x8e) |
| * Recognizing the first or second byte is difficult, it |
| * requires checking a byte sequence from the start. |
| * "enc_utf8" When TRUE use Unicode characters in UTF-8 encoding. |
| * The cell width on the display needs to be determined from |
| * the character value. |
| * Recognizing bytes is easy: 0xxx.xxxx is a single-byte |
| * char, 10xx.xxxx is a trailing byte, 11xx.xxxx is a leading |
| * byte of a multi-byte character. |
| * To make things complicated, up to six composing characters |
| * are allowed. These are drawn on top of the first char. |
| * For most editing the sequence of bytes with composing |
| * characters included is considered to be one character. |
| * "enc_unicode" When 2 use 16-bit Unicode characters (or UTF-16). |
| * When 4 use 32-but Unicode characters. |
| * Internally characters are stored in UTF-8 encoding to |
| * avoid NUL bytes. Conversion happens when doing I/O. |
| * "enc_utf8" will also be TRUE. |
| * |
| * "has_mbyte" is set when "enc_dbcs" or "enc_utf8" is non-zero. |
| * |
| * If none of these is TRUE, 8-bit bytes are used for a character. The |
| * encoding isn't currently specified (TODO). |
| * |
| * 'encoding' specifies the encoding used in the core. This is in registers, |
| * text manipulation, buffers, etc. Conversion has to be done when characters |
| * in another encoding are received or send: |
| * |
| * clipboard |
| * ^ |
| * | (2) |
| * V |
| * +---------------+ |
| * (1) | | (3) |
| * keyboard ----->| core |-----> display |
| * | | |
| * +---------------+ |
| * ^ |
| * | (4) |
| * V |
| * file |
| * |
| * (1) Typed characters arrive in the current locale. Conversion is to be |
| * done when 'encoding' is different from 'termencoding'. |
| * (2) Text will be made available with the encoding specified with |
| * 'encoding'. If this is not sufficient, system-specific conversion |
| * might be required. |
| * (3) For the GUI the correct font must be selected, no conversion done. |
| * Otherwise, conversion is to be done when 'encoding' differs from |
| * 'termencoding'. (Different in the GTK+ 2 port -- 'termencoding' |
| * is always used for both input and output and must always be set to |
| * "utf-8". gui_mch_init() does this automatically.) |
| * (4) The encoding of the file is specified with 'fileencoding'. Conversion |
| * is to be done when it's different from 'encoding'. |
| * |
| * The viminfo file is a special case: Only text is converted, not file names. |
| * Vim scripts may contain an ":encoding" command. This has an effect for |
| * some commands, like ":menutrans" |
| */ |
| |
| #include "vim.h" |
| |
| #ifdef WIN32UNIX |
| # ifndef WIN32_LEAN_AND_MEAN |
| # define WIN32_LEAN_AND_MEAN |
| # endif |
| # if defined(FEAT_GUI) || defined(FEAT_XCLIPBOARD) |
| # include <X11/Xwindows.h> |
| # define WINBYTE wBYTE |
| # else |
| # include <windows.h> |
| # define WINBYTE BYTE |
| # endif |
| # ifdef WIN32 |
| # undef WIN32 /* Some windows.h define WIN32, we don't want that here. */ |
| # endif |
| #else |
| # define WINBYTE BYTE |
| #endif |
| |
| #if (defined(WIN3264) || defined(WIN32UNIX)) && !defined(__MINGW32__) |
| # include <winnls.h> |
| #endif |
| |
| #ifdef FEAT_GUI_X11 |
| # include <X11/Intrinsic.h> |
| #endif |
| #ifdef X_LOCALE |
| #include <X11/Xlocale.h> |
| #endif |
| |
| #if defined(FEAT_GUI_GTK) && defined(FEAT_XIM) |
| # if GTK_CHECK_VERSION(3,0,0) |
| # include <gdk/gdkkeysyms-compat.h> |
| # else |
| # include <gdk/gdkkeysyms.h> |
| # endif |
| # ifdef WIN3264 |
| # include <gdk/gdkwin32.h> |
| # else |
| # include <gdk/gdkx.h> |
| # endif |
| #endif |
| |
| #ifdef HAVE_WCHAR_H |
| # include <wchar.h> |
| #endif |
| |
| #if 0 |
| /* This has been disabled, because several people reported problems with the |
| * wcwidth() and iswprint() library functions, esp. for Hebrew. */ |
| # ifdef __STDC_ISO_10646__ |
| # define USE_WCHAR_FUNCTIONS |
| # endif |
| #endif |
| |
| #if defined(FEAT_MBYTE) || defined(PROTO) |
| |
| static int enc_canon_search(char_u *name); |
| static int dbcs_char2len(int c); |
| static int dbcs_char2bytes(int c, char_u *buf); |
| static int dbcs_ptr2len(char_u *p); |
| static int dbcs_ptr2len_len(char_u *p, int size); |
| static int utf_ptr2cells_len(char_u *p, int size); |
| static int dbcs_char2cells(int c); |
| static int dbcs_ptr2cells_len(char_u *p, int size); |
| static int dbcs_ptr2char(char_u *p); |
| static int utf_safe_read_char_adv(char_u **s, size_t *n); |
| |
| /* |
| * Lookup table to quickly get the length in bytes of a UTF-8 character from |
| * the first byte of a UTF-8 string. |
| * Bytes which are illegal when used as the first byte have a 1. |
| * The NUL byte has length 1. |
| */ |
| static char utf8len_tab[256] = |
| { |
| 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
| 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
| 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
| 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
| 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
| 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
| 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, |
| 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,6,6,1,1, |
| }; |
| |
| /* |
| * Like utf8len_tab above, but using a zero for illegal lead bytes. |
| */ |
| static char utf8len_tab_zero[256] = |
| { |
| 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
| 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
| 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
| 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
| 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, |
| 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,6,6,0,0, |
| }; |
| |
| /* |
| * XIM often causes trouble. Define XIM_DEBUG to get a log of XIM callbacks |
| * in the "xim.log" file. |
| */ |
| /* #define XIM_DEBUG */ |
| #ifdef XIM_DEBUG |
| static void |
| xim_log(char *s, ...) |
| { |
| va_list arglist; |
| static FILE *fd = NULL; |
| |
| if (fd == (FILE *)-1) |
| return; |
| if (fd == NULL) |
| { |
| fd = mch_fopen("xim.log", "w"); |
| if (fd == NULL) |
| { |
| EMSG("Cannot open xim.log"); |
| fd = (FILE *)-1; |
| return; |
| } |
| } |
| |
| va_start(arglist, s); |
| vfprintf(fd, s, arglist); |
| va_end(arglist); |
| } |
| #endif |
| |
| #endif |
| |
| #if defined(FEAT_MBYTE) || defined(FEAT_POSTSCRIPT) || defined(PROTO) |
| /* |
| * Canonical encoding names and their properties. |
| * "iso-8859-n" is handled by enc_canonize() directly. |
| */ |
| static struct |
| { char *name; int prop; int codepage;} |
| enc_canon_table[] = |
| { |
| #define IDX_LATIN_1 0 |
| {"latin1", ENC_8BIT + ENC_LATIN1, 1252}, |
| #define IDX_ISO_2 1 |
| {"iso-8859-2", ENC_8BIT, 0}, |
| #define IDX_ISO_3 2 |
| {"iso-8859-3", ENC_8BIT, 0}, |
| #define IDX_ISO_4 3 |
| {"iso-8859-4", ENC_8BIT, 0}, |
| #define IDX_ISO_5 4 |
| {"iso-8859-5", ENC_8BIT, 0}, |
| #define IDX_ISO_6 5 |
| {"iso-8859-6", ENC_8BIT, 0}, |
| #define IDX_ISO_7 6 |
| {"iso-8859-7", ENC_8BIT, 0}, |
| #define IDX_ISO_8 7 |
| {"iso-8859-8", ENC_8BIT, 0}, |
| #define IDX_ISO_9 8 |
| {"iso-8859-9", ENC_8BIT, 0}, |
| #define IDX_ISO_10 9 |
| {"iso-8859-10", ENC_8BIT, 0}, |
| #define IDX_ISO_11 10 |
| {"iso-8859-11", ENC_8BIT, 0}, |
| #define IDX_ISO_13 11 |
| {"iso-8859-13", ENC_8BIT, 0}, |
| #define IDX_ISO_14 12 |
| {"iso-8859-14", ENC_8BIT, 0}, |
| #define IDX_ISO_15 13 |
| {"iso-8859-15", ENC_8BIT + ENC_LATIN9, 0}, |
| #define IDX_KOI8_R 14 |
| {"koi8-r", ENC_8BIT, 0}, |
| #define IDX_KOI8_U 15 |
| {"koi8-u", ENC_8BIT, 0}, |
| #define IDX_UTF8 16 |
| {"utf-8", ENC_UNICODE, 0}, |
| #define IDX_UCS2 17 |
| {"ucs-2", ENC_UNICODE + ENC_ENDIAN_B + ENC_2BYTE, 0}, |
| #define IDX_UCS2LE 18 |
| {"ucs-2le", ENC_UNICODE + ENC_ENDIAN_L + ENC_2BYTE, 0}, |
| #define IDX_UTF16 19 |
| {"utf-16", ENC_UNICODE + ENC_ENDIAN_B + ENC_2WORD, 0}, |
| #define IDX_UTF16LE 20 |
| {"utf-16le", ENC_UNICODE + ENC_ENDIAN_L + ENC_2WORD, 0}, |
| #define IDX_UCS4 21 |
| {"ucs-4", ENC_UNICODE + ENC_ENDIAN_B + ENC_4BYTE, 0}, |
| #define IDX_UCS4LE 22 |
| {"ucs-4le", ENC_UNICODE + ENC_ENDIAN_L + ENC_4BYTE, 0}, |
| |
| /* For debugging DBCS encoding on Unix. */ |
| #define IDX_DEBUG 23 |
| {"debug", ENC_DBCS, DBCS_DEBUG}, |
| #define IDX_EUC_JP 24 |
| {"euc-jp", ENC_DBCS, DBCS_JPNU}, |
| #define IDX_SJIS 25 |
| {"sjis", ENC_DBCS, DBCS_JPN}, |
| #define IDX_EUC_KR 26 |
| {"euc-kr", ENC_DBCS, DBCS_KORU}, |
| #define IDX_EUC_CN 27 |
| {"euc-cn", ENC_DBCS, DBCS_CHSU}, |
| #define IDX_EUC_TW 28 |
| {"euc-tw", ENC_DBCS, DBCS_CHTU}, |
| #define IDX_BIG5 29 |
| {"big5", ENC_DBCS, DBCS_CHT}, |
| |
| /* MS-DOS and MS-Windows codepages are included here, so that they can be |
| * used on Unix too. Most of them are similar to ISO-8859 encodings, but |
| * not exactly the same. */ |
| #define IDX_CP437 30 |
| {"cp437", ENC_8BIT, 437}, /* like iso-8859-1 */ |
| #define IDX_CP737 31 |
| {"cp737", ENC_8BIT, 737}, /* like iso-8859-7 */ |
| #define IDX_CP775 32 |
| {"cp775", ENC_8BIT, 775}, /* Baltic */ |
| #define IDX_CP850 33 |
| {"cp850", ENC_8BIT, 850}, /* like iso-8859-4 */ |
| #define IDX_CP852 34 |
| {"cp852", ENC_8BIT, 852}, /* like iso-8859-1 */ |
| #define IDX_CP855 35 |
| {"cp855", ENC_8BIT, 855}, /* like iso-8859-2 */ |
| #define IDX_CP857 36 |
| {"cp857", ENC_8BIT, 857}, /* like iso-8859-5 */ |
| #define IDX_CP860 37 |
| {"cp860", ENC_8BIT, 860}, /* like iso-8859-9 */ |
| #define IDX_CP861 38 |
| {"cp861", ENC_8BIT, 861}, /* like iso-8859-1 */ |
| #define IDX_CP862 39 |
| {"cp862", ENC_8BIT, 862}, /* like iso-8859-1 */ |
| #define IDX_CP863 40 |
| {"cp863", ENC_8BIT, 863}, /* like iso-8859-8 */ |
| #define IDX_CP865 41 |
| {"cp865", ENC_8BIT, 865}, /* like iso-8859-1 */ |
| #define IDX_CP866 42 |
| {"cp866", ENC_8BIT, 866}, /* like iso-8859-5 */ |
| #define IDX_CP869 43 |
| {"cp869", ENC_8BIT, 869}, /* like iso-8859-7 */ |
| #define IDX_CP874 44 |
| {"cp874", ENC_8BIT, 874}, /* Thai */ |
| #define IDX_CP932 45 |
| {"cp932", ENC_DBCS, DBCS_JPN}, |
| #define IDX_CP936 46 |
| {"cp936", ENC_DBCS, DBCS_CHS}, |
| #define IDX_CP949 47 |
| {"cp949", ENC_DBCS, DBCS_KOR}, |
| #define IDX_CP950 48 |
| {"cp950", ENC_DBCS, DBCS_CHT}, |
| #define IDX_CP1250 49 |
| {"cp1250", ENC_8BIT, 1250}, /* Czech, Polish, etc. */ |
| #define IDX_CP1251 50 |
| {"cp1251", ENC_8BIT, 1251}, /* Cyrillic */ |
| /* cp1252 is considered to be equal to latin1 */ |
| #define IDX_CP1253 51 |
| {"cp1253", ENC_8BIT, 1253}, /* Greek */ |
| #define IDX_CP1254 52 |
| {"cp1254", ENC_8BIT, 1254}, /* Turkish */ |
| #define IDX_CP1255 53 |
| {"cp1255", ENC_8BIT, 1255}, /* Hebrew */ |
| #define IDX_CP1256 54 |
| {"cp1256", ENC_8BIT, 1256}, /* Arabic */ |
| #define IDX_CP1257 55 |
| {"cp1257", ENC_8BIT, 1257}, /* Baltic */ |
| #define IDX_CP1258 56 |
| {"cp1258", ENC_8BIT, 1258}, /* Vietnamese */ |
| |
| #define IDX_MACROMAN 57 |
| {"macroman", ENC_8BIT + ENC_MACROMAN, 0}, /* Mac OS */ |
| #define IDX_DECMCS 58 |
| {"dec-mcs", ENC_8BIT, 0}, /* DEC MCS */ |
| #define IDX_HPROMAN8 59 |
| {"hp-roman8", ENC_8BIT, 0}, /* HP Roman8 */ |
| #define IDX_COUNT 60 |
| }; |
| |
| /* |
| * Aliases for encoding names. |
| */ |
| static struct |
| { char *name; int canon;} |
| enc_alias_table[] = |
| { |
| {"ansi", IDX_LATIN_1}, |
| {"iso-8859-1", IDX_LATIN_1}, |
| {"latin2", IDX_ISO_2}, |
| {"latin3", IDX_ISO_3}, |
| {"latin4", IDX_ISO_4}, |
| {"cyrillic", IDX_ISO_5}, |
| {"arabic", IDX_ISO_6}, |
| {"greek", IDX_ISO_7}, |
| #ifdef WIN3264 |
| {"hebrew", IDX_CP1255}, |
| #else |
| {"hebrew", IDX_ISO_8}, |
| #endif |
| {"latin5", IDX_ISO_9}, |
| {"turkish", IDX_ISO_9}, /* ? */ |
| {"latin6", IDX_ISO_10}, |
| {"nordic", IDX_ISO_10}, /* ? */ |
| {"thai", IDX_ISO_11}, /* ? */ |
| {"latin7", IDX_ISO_13}, |
| {"latin8", IDX_ISO_14}, |
| {"latin9", IDX_ISO_15}, |
| {"utf8", IDX_UTF8}, |
| {"unicode", IDX_UCS2}, |
| {"ucs2", IDX_UCS2}, |
| {"ucs2be", IDX_UCS2}, |
| {"ucs-2be", IDX_UCS2}, |
| {"ucs2le", IDX_UCS2LE}, |
| {"utf16", IDX_UTF16}, |
| {"utf16be", IDX_UTF16}, |
| {"utf-16be", IDX_UTF16}, |
| {"utf16le", IDX_UTF16LE}, |
| {"ucs4", IDX_UCS4}, |
| {"ucs4be", IDX_UCS4}, |
| {"ucs-4be", IDX_UCS4}, |
| {"ucs4le", IDX_UCS4LE}, |
| {"utf32", IDX_UCS4}, |
| {"utf-32", IDX_UCS4}, |
| {"utf32be", IDX_UCS4}, |
| {"utf-32be", IDX_UCS4}, |
| {"utf32le", IDX_UCS4LE}, |
| {"utf-32le", IDX_UCS4LE}, |
| {"932", IDX_CP932}, |
| {"949", IDX_CP949}, |
| {"936", IDX_CP936}, |
| {"gbk", IDX_CP936}, |
| {"950", IDX_CP950}, |
| {"eucjp", IDX_EUC_JP}, |
| {"unix-jis", IDX_EUC_JP}, |
| {"ujis", IDX_EUC_JP}, |
| {"shift-jis", IDX_SJIS}, |
| {"pck", IDX_SJIS}, /* Sun: PCK */ |
| {"euckr", IDX_EUC_KR}, |
| {"5601", IDX_EUC_KR}, /* Sun: KS C 5601 */ |
| {"euccn", IDX_EUC_CN}, |
| {"gb2312", IDX_EUC_CN}, |
| {"euctw", IDX_EUC_TW}, |
| #if defined(WIN3264) || defined(WIN32UNIX) || defined(MACOS) |
| {"japan", IDX_CP932}, |
| {"korea", IDX_CP949}, |
| {"prc", IDX_CP936}, |
| {"chinese", IDX_CP936}, |
| {"taiwan", IDX_CP950}, |
| {"big5", IDX_CP950}, |
| #else |
| {"japan", IDX_EUC_JP}, |
| {"korea", IDX_EUC_KR}, |
| {"prc", IDX_EUC_CN}, |
| {"chinese", IDX_EUC_CN}, |
| {"taiwan", IDX_EUC_TW}, |
| {"cp950", IDX_BIG5}, |
| {"950", IDX_BIG5}, |
| #endif |
| {"mac", IDX_MACROMAN}, |
| {"mac-roman", IDX_MACROMAN}, |
| {NULL, 0} |
| }; |
| |
| #ifndef CP_UTF8 |
| # define CP_UTF8 65001 /* magic number from winnls.h */ |
| #endif |
| |
| /* |
| * Find encoding "name" in the list of canonical encoding names. |
| * Returns -1 if not found. |
| */ |
| static int |
| enc_canon_search(char_u *name) |
| { |
| int i; |
| |
| for (i = 0; i < IDX_COUNT; ++i) |
| if (STRCMP(name, enc_canon_table[i].name) == 0) |
| return i; |
| return -1; |
| } |
| |
| #endif |
| |
| #if defined(FEAT_MBYTE) || defined(PROTO) |
| |
| /* |
| * Find canonical encoding "name" in the list and return its properties. |
| * Returns 0 if not found. |
| */ |
| int |
| enc_canon_props(char_u *name) |
| { |
| int i; |
| |
| i = enc_canon_search(name); |
| if (i >= 0) |
| return enc_canon_table[i].prop; |
| #ifdef WIN3264 |
| if (name[0] == 'c' && name[1] == 'p' && VIM_ISDIGIT(name[2])) |
| { |
| CPINFO cpinfo; |
| |
| /* Get info on this codepage to find out what it is. */ |
| if (GetCPInfo(atoi((char *)name + 2), &cpinfo) != 0) |
| { |
| if (cpinfo.MaxCharSize == 1) /* some single-byte encoding */ |
| return ENC_8BIT; |
| if (cpinfo.MaxCharSize == 2 |
| && (cpinfo.LeadByte[0] != 0 || cpinfo.LeadByte[1] != 0)) |
| /* must be a DBCS encoding */ |
| return ENC_DBCS; |
| } |
| return 0; |
| } |
| #endif |
| if (STRNCMP(name, "2byte-", 6) == 0) |
| return ENC_DBCS; |
| if (STRNCMP(name, "8bit-", 5) == 0 || STRNCMP(name, "iso-8859-", 9) == 0) |
| return ENC_8BIT; |
| return 0; |
| } |
| |
| /* |
| * Set up for using multi-byte characters. |
| * Called in three cases: |
| * - by main() to initialize (p_enc == NULL) |
| * - by set_init_1() after 'encoding' was set to its default. |
| * - by do_set() when 'encoding' has been set. |
| * p_enc must have been passed through enc_canonize() already. |
| * Sets the "enc_unicode", "enc_utf8", "enc_dbcs" and "has_mbyte" flags. |
| * Fills mb_bytelen_tab[] and returns NULL when there are no problems. |
| * When there is something wrong: Returns an error message and doesn't change |
| * anything. |
| */ |
| char_u * |
| mb_init(void) |
| { |
| int i; |
| int idx; |
| int n; |
| int enc_dbcs_new = 0; |
| #if defined(USE_ICONV) && !defined(WIN3264) && !defined(WIN32UNIX) \ |
| && !defined(MACOS) |
| # define LEN_FROM_CONV |
| vimconv_T vimconv; |
| char_u *p; |
| #endif |
| |
| if (p_enc == NULL) |
| { |
| /* Just starting up: set the whole table to one's. */ |
| for (i = 0; i < 256; ++i) |
| mb_bytelen_tab[i] = 1; |
| input_conv.vc_type = CONV_NONE; |
| input_conv.vc_factor = 1; |
| output_conv.vc_type = CONV_NONE; |
| return NULL; |
| } |
| |
| #ifdef WIN3264 |
| if (p_enc[0] == 'c' && p_enc[1] == 'p' && VIM_ISDIGIT(p_enc[2])) |
| { |
| CPINFO cpinfo; |
| |
| /* Get info on this codepage to find out what it is. */ |
| if (GetCPInfo(atoi((char *)p_enc + 2), &cpinfo) != 0) |
| { |
| if (cpinfo.MaxCharSize == 1) |
| { |
| /* some single-byte encoding */ |
| enc_unicode = 0; |
| enc_utf8 = FALSE; |
| } |
| else if (cpinfo.MaxCharSize == 2 |
| && (cpinfo.LeadByte[0] != 0 || cpinfo.LeadByte[1] != 0)) |
| { |
| /* must be a DBCS encoding, check below */ |
| enc_dbcs_new = atoi((char *)p_enc + 2); |
| } |
| else |
| goto codepage_invalid; |
| } |
| else if (GetLastError() == ERROR_INVALID_PARAMETER) |
| { |
| codepage_invalid: |
| return (char_u *)N_("E543: Not a valid codepage"); |
| } |
| } |
| #endif |
| else if (STRNCMP(p_enc, "8bit-", 5) == 0 |
| || STRNCMP(p_enc, "iso-8859-", 9) == 0) |
| { |
| /* Accept any "8bit-" or "iso-8859-" name. */ |
| enc_unicode = 0; |
| enc_utf8 = FALSE; |
| } |
| else if (STRNCMP(p_enc, "2byte-", 6) == 0) |
| { |
| #ifdef WIN3264 |
| /* Windows: accept only valid codepage numbers, check below. */ |
| if (p_enc[6] != 'c' || p_enc[7] != 'p' |
| || (enc_dbcs_new = atoi((char *)p_enc + 8)) == 0) |
| return e_invarg; |
| #else |
| /* Unix: accept any "2byte-" name, assume current locale. */ |
| enc_dbcs_new = DBCS_2BYTE; |
| #endif |
| } |
| else if ((idx = enc_canon_search(p_enc)) >= 0) |
| { |
| i = enc_canon_table[idx].prop; |
| if (i & ENC_UNICODE) |
| { |
| /* Unicode */ |
| enc_utf8 = TRUE; |
| if (i & (ENC_2BYTE | ENC_2WORD)) |
| enc_unicode = 2; |
| else if (i & ENC_4BYTE) |
| enc_unicode = 4; |
| else |
| enc_unicode = 0; |
| } |
| else if (i & ENC_DBCS) |
| { |
| /* 2byte, handle below */ |
| enc_dbcs_new = enc_canon_table[idx].codepage; |
| } |
| else |
| { |
| /* Must be 8-bit. */ |
| enc_unicode = 0; |
| enc_utf8 = FALSE; |
| } |
| } |
| else /* Don't know what encoding this is, reject it. */ |
| return e_invarg; |
| |
| if (enc_dbcs_new != 0) |
| { |
| #ifdef WIN3264 |
| /* Check if the DBCS code page is OK. */ |
| if (!IsValidCodePage(enc_dbcs_new)) |
| goto codepage_invalid; |
| #endif |
| enc_unicode = 0; |
| enc_utf8 = FALSE; |
| } |
| enc_dbcs = enc_dbcs_new; |
| has_mbyte = (enc_dbcs != 0 || enc_utf8); |
| |
| #if defined(WIN3264) || defined(FEAT_CYGWIN_WIN32_CLIPBOARD) |
| enc_codepage = encname2codepage(p_enc); |
| enc_latin9 = (STRCMP(p_enc, "iso-8859-15") == 0); |
| #endif |
| |
| /* Detect an encoding that uses latin1 characters. */ |
| enc_latin1like = (enc_utf8 || STRCMP(p_enc, "latin1") == 0 |
| || STRCMP(p_enc, "iso-8859-15") == 0); |
| |
| /* |
| * Set the function pointers. |
| */ |
| if (enc_utf8) |
| { |
| mb_ptr2len = utfc_ptr2len; |
| mb_ptr2len_len = utfc_ptr2len_len; |
| mb_char2len = utf_char2len; |
| mb_char2bytes = utf_char2bytes; |
| mb_ptr2cells = utf_ptr2cells; |
| mb_ptr2cells_len = utf_ptr2cells_len; |
| mb_char2cells = utf_char2cells; |
| mb_off2cells = utf_off2cells; |
| mb_ptr2char = utf_ptr2char; |
| mb_head_off = utf_head_off; |
| } |
| else if (enc_dbcs != 0) |
| { |
| mb_ptr2len = dbcs_ptr2len; |
| mb_ptr2len_len = dbcs_ptr2len_len; |
| mb_char2len = dbcs_char2len; |
| mb_char2bytes = dbcs_char2bytes; |
| mb_ptr2cells = dbcs_ptr2cells; |
| mb_ptr2cells_len = dbcs_ptr2cells_len; |
| mb_char2cells = dbcs_char2cells; |
| mb_off2cells = dbcs_off2cells; |
| mb_ptr2char = dbcs_ptr2char; |
| mb_head_off = dbcs_head_off; |
| } |
| else |
| { |
| mb_ptr2len = latin_ptr2len; |
| mb_ptr2len_len = latin_ptr2len_len; |
| mb_char2len = latin_char2len; |
| mb_char2bytes = latin_char2bytes; |
| mb_ptr2cells = latin_ptr2cells; |
| mb_ptr2cells_len = latin_ptr2cells_len; |
| mb_char2cells = latin_char2cells; |
| mb_off2cells = latin_off2cells; |
| mb_ptr2char = latin_ptr2char; |
| mb_head_off = latin_head_off; |
| } |
| |
| /* |
| * Fill the mb_bytelen_tab[] for MB_BYTE2LEN(). |
| */ |
| #ifdef LEN_FROM_CONV |
| /* When 'encoding' is different from the current locale mblen() won't |
| * work. Use conversion to "utf-8" instead. */ |
| vimconv.vc_type = CONV_NONE; |
| if (enc_dbcs) |
| { |
| p = enc_locale(); |
| if (p == NULL || STRCMP(p, p_enc) != 0) |
| { |
| convert_setup(&vimconv, p_enc, (char_u *)"utf-8"); |
| vimconv.vc_fail = TRUE; |
| } |
| vim_free(p); |
| } |
| #endif |
| |
| for (i = 0; i < 256; ++i) |
| { |
| /* Our own function to reliably check the length of UTF-8 characters, |
| * independent of mblen(). */ |
| if (enc_utf8) |
| n = utf8len_tab[i]; |
| else if (enc_dbcs == 0) |
| n = 1; |
| else |
| { |
| #if defined(WIN3264) || defined(WIN32UNIX) |
| /* enc_dbcs is set by setting 'fileencoding'. It becomes a Windows |
| * CodePage identifier, which we can pass directly in to Windows |
| * API */ |
| n = IsDBCSLeadByteEx(enc_dbcs, (WINBYTE)i) ? 2 : 1; |
| #else |
| # if defined(MACOS) || defined(__amigaos4__) || defined(__ANDROID__) |
| /* |
| * if mblen() is not available, character which MSB is turned on |
| * are treated as leading byte character. (note : This assumption |
| * is not always true.) |
| */ |
| n = (i & 0x80) ? 2 : 1; |
| # else |
| char buf[MB_MAXBYTES + 1]; |
| # ifdef X_LOCALE |
| # ifndef mblen |
| # define mblen _Xmblen |
| # endif |
| # endif |
| if (i == NUL) /* just in case mblen() can't handle "" */ |
| n = 1; |
| else |
| { |
| buf[0] = i; |
| buf[1] = 0; |
| #ifdef LEN_FROM_CONV |
| if (vimconv.vc_type != CONV_NONE) |
| { |
| /* |
| * string_convert() should fail when converting the first |
| * byte of a double-byte character. |
| */ |
| p = string_convert(&vimconv, (char_u *)buf, NULL); |
| if (p != NULL) |
| { |
| vim_free(p); |
| n = 1; |
| } |
| else |
| n = 2; |
| } |
| else |
| #endif |
| { |
| /* |
| * mblen() should return -1 for invalid (means the leading |
| * multibyte) character. However there are some platforms |
| * where mblen() returns 0 for invalid character. |
| * Therefore, following condition includes 0. |
| */ |
| ignored = mblen(NULL, 0); /* First reset the state. */ |
| if (mblen(buf, (size_t)1) <= 0) |
| n = 2; |
| else |
| n = 1; |
| } |
| } |
| # endif |
| #endif |
| } |
| |
| mb_bytelen_tab[i] = n; |
| } |
| |
| #ifdef LEN_FROM_CONV |
| convert_setup(&vimconv, NULL, NULL); |
| #endif |
| |
| /* The cell width depends on the type of multi-byte characters. */ |
| (void)init_chartab(); |
| |
| /* When enc_utf8 is set or reset, (de)allocate ScreenLinesUC[] */ |
| screenalloc(FALSE); |
| |
| /* When using Unicode, set default for 'fileencodings'. */ |
| if (enc_utf8 && !option_was_set((char_u *)"fencs")) |
| set_string_option_direct((char_u *)"fencs", -1, |
| (char_u *)"ucs-bom,utf-8,default,latin1", OPT_FREE, 0); |
| |
| #if defined(HAVE_BIND_TEXTDOMAIN_CODESET) && defined(FEAT_GETTEXT) |
| /* GNU gettext 0.10.37 supports this feature: set the codeset used for |
| * translated messages independently from the current locale. */ |
| (void)bind_textdomain_codeset(VIMPACKAGE, |
| enc_utf8 ? "utf-8" : (char *)p_enc); |
| #endif |
| |
| #ifdef WIN32 |
| /* When changing 'encoding' while starting up, then convert the command |
| * line arguments from the active codepage to 'encoding'. */ |
| if (starting != 0) |
| fix_arg_enc(); |
| #endif |
| |
| #ifdef FEAT_AUTOCMD |
| /* Fire an autocommand to let people do custom font setup. This must be |
| * after Vim has been setup for the new encoding. */ |
| apply_autocmds(EVENT_ENCODINGCHANGED, NULL, (char_u *)"", FALSE, curbuf); |
| #endif |
| |
| #ifdef FEAT_SPELL |
| /* Need to reload spell dictionaries */ |
| spell_reload(); |
| #endif |
| |
| return NULL; |
| } |
| |
| /* |
| * Return the size of the BOM for the current buffer: |
| * 0 - no BOM |
| * 2 - UCS-2 or UTF-16 BOM |
| * 4 - UCS-4 BOM |
| * 3 - UTF-8 BOM |
| */ |
| int |
| bomb_size(void) |
| { |
| int n = 0; |
| |
| if (curbuf->b_p_bomb && !curbuf->b_p_bin) |
| { |
| if (*curbuf->b_p_fenc == NUL) |
| { |
| if (enc_utf8) |
| { |
| if (enc_unicode != 0) |
| n = enc_unicode; |
| else |
| n = 3; |
| } |
| } |
| else if (STRCMP(curbuf->b_p_fenc, "utf-8") == 0) |
| n = 3; |
| else if (STRNCMP(curbuf->b_p_fenc, "ucs-2", 5) == 0 |
| || STRNCMP(curbuf->b_p_fenc, "utf-16", 6) == 0) |
| n = 2; |
| else if (STRNCMP(curbuf->b_p_fenc, "ucs-4", 5) == 0) |
| n = 4; |
| } |
| return n; |
| } |
| |
| /* |
| * Remove all BOM from "s" by moving remaining text. |
| */ |
| void |
| remove_bom(char_u *s) |
| { |
| if (enc_utf8) |
| { |
| char_u *p = s; |
| |
| while ((p = vim_strbyte(p, 0xef)) != NULL) |
| { |
| if (p[1] == 0xbb && p[2] == 0xbf) |
| STRMOVE(p, p + 3); |
| else |
| ++p; |
| } |
| } |
| } |
| |
| /* |
| * Get class of pointer: |
| * 0 for blank or NUL |
| * 1 for punctuation |
| * 2 for an (ASCII) word character |
| * >2 for other word characters |
| */ |
| int |
| mb_get_class(char_u *p) |
| { |
| return mb_get_class_buf(p, curbuf); |
| } |
| |
| int |
| mb_get_class_buf(char_u *p, buf_T *buf) |
| { |
| if (MB_BYTE2LEN(p[0]) == 1) |
| { |
| if (p[0] == NUL || vim_iswhite(p[0])) |
| return 0; |
| if (vim_iswordc_buf(p[0], buf)) |
| return 2; |
| return 1; |
| } |
| if (enc_dbcs != 0 && p[0] != NUL && p[1] != NUL) |
| return dbcs_class(p[0], p[1]); |
| if (enc_utf8) |
| return utf_class(utf_ptr2char(p)); |
| return 0; |
| } |
| |
| /* |
| * Get class of a double-byte character. This always returns 3 or bigger. |
| * TODO: Should return 1 for punctuation. |
| */ |
| int |
| dbcs_class(unsigned lead, unsigned trail) |
| { |
| switch (enc_dbcs) |
| { |
| /* please add classify routine for your language in here */ |
| |
| case DBCS_JPNU: /* ? */ |
| case DBCS_JPN: |
| { |
| /* JIS code classification */ |
| unsigned char lb = lead; |
| unsigned char tb = trail; |
| |
| /* convert process code to JIS */ |
| # if defined(WIN3264) || defined(WIN32UNIX) || defined(MACOS) |
| /* process code is SJIS */ |
| if (lb <= 0x9f) |
| lb = (lb - 0x81) * 2 + 0x21; |
| else |
| lb = (lb - 0xc1) * 2 + 0x21; |
| if (tb <= 0x7e) |
| tb -= 0x1f; |
| else if (tb <= 0x9e) |
| tb -= 0x20; |
| else |
| { |
| tb -= 0x7e; |
| lb += 1; |
| } |
| # else |
| /* |
| * XXX: Code page identification can not use with all |
| * system! So, some other encoding information |
| * will be needed. |
| * In japanese: SJIS,EUC,UNICODE,(JIS) |
| * Note that JIS-code system don't use as |
| * process code in most system because it uses |
| * escape sequences(JIS is context depend encoding). |
| */ |
| /* assume process code is JAPANESE-EUC */ |
| lb &= 0x7f; |
| tb &= 0x7f; |
| # endif |
| /* exceptions */ |
| switch (lb << 8 | tb) |
| { |
| case 0x2121: /* ZENKAKU space */ |
| return 0; |
| case 0x2122: /* TOU-TEN (Japanese comma) */ |
| case 0x2123: /* KU-TEN (Japanese period) */ |
| case 0x2124: /* ZENKAKU comma */ |
| case 0x2125: /* ZENKAKU period */ |
| return 1; |
| case 0x213c: /* prolongedsound handled as KATAKANA */ |
| return 13; |
| } |
| /* sieved by KU code */ |
| switch (lb) |
| { |
| case 0x21: |
| case 0x22: |
| /* special symbols */ |
| return 10; |
| case 0x23: |
| /* alpha-numeric */ |
| return 11; |
| case 0x24: |
| /* hiragana */ |
| return 12; |
| case 0x25: |
| /* katakana */ |
| return 13; |
| case 0x26: |
| /* greek */ |
| return 14; |
| case 0x27: |
| /* russian */ |
| return 15; |
| case 0x28: |
| /* lines */ |
| return 16; |
| default: |
| /* kanji */ |
| return 17; |
| } |
| } |
| |
| case DBCS_KORU: /* ? */ |
| case DBCS_KOR: |
| { |
| /* KS code classification */ |
| unsigned char c1 = lead; |
| unsigned char c2 = trail; |
| |
| /* |
| * 20 : Hangul |
| * 21 : Hanja |
| * 22 : Symbols |
| * 23 : Alpha-numeric/Roman Letter (Full width) |
| * 24 : Hangul Letter(Alphabet) |
| * 25 : Roman Numeral/Greek Letter |
| * 26 : Box Drawings |
| * 27 : Unit Symbols |
| * 28 : Circled/Parenthesized Letter |
| * 29 : Hiragana/Katakana |
| * 30 : Cyrillic Letter |
| */ |
| |
| if (c1 >= 0xB0 && c1 <= 0xC8) |
| /* Hangul */ |
| return 20; |
| #if defined(WIN3264) || defined(WIN32UNIX) |
| else if (c1 <= 0xA0 || c2 <= 0xA0) |
| /* Extended Hangul Region : MS UHC(Unified Hangul Code) */ |
| /* c1: 0x81-0xA0 with c2: 0x41-0x5A, 0x61-0x7A, 0x81-0xFE |
| * c1: 0xA1-0xC6 with c2: 0x41-0x5A, 0x61-0x7A, 0x81-0xA0 |
| */ |
| return 20; |
| #endif |
| |
| else if (c1 >= 0xCA && c1 <= 0xFD) |
| /* Hanja */ |
| return 21; |
| else switch (c1) |
| { |
| case 0xA1: |
| case 0xA2: |
| /* Symbols */ |
| return 22; |
| case 0xA3: |
| /* Alpha-numeric */ |
| return 23; |
| case 0xA4: |
| /* Hangul Letter(Alphabet) */ |
| return 24; |
| case 0xA5: |
| /* Roman Numeral/Greek Letter */ |
| return 25; |
| case 0xA6: |
| /* Box Drawings */ |
| return 26; |
| case 0xA7: |
| /* Unit Symbols */ |
| return 27; |
| case 0xA8: |
| case 0xA9: |
| if (c2 <= 0xAF) |
| return 25; /* Roman Letter */ |
| else if (c2 >= 0xF6) |
| return 22; /* Symbols */ |
| else |
| /* Circled/Parenthesized Letter */ |
| return 28; |
| case 0xAA: |
| case 0xAB: |
| /* Hiragana/Katakana */ |
| return 29; |
| case 0xAC: |
| /* Cyrillic Letter */ |
| return 30; |
| } |
| } |
| default: |
| break; |
| } |
| return 3; |
| } |
| |
| /* |
| * mb_char2len() function pointer. |
| * Return length in bytes of character "c". |
| * Returns 1 for a single-byte character. |
| */ |
| int |
| latin_char2len(int c UNUSED) |
| { |
| return 1; |
| } |
| |
| static int |
| dbcs_char2len( |
| int c) |
| { |
| if (c >= 0x100) |
| return 2; |
| return 1; |
| } |
| |
| /* |
| * mb_char2bytes() function pointer. |
| * Convert a character to its bytes. |
| * Returns the length in bytes. |
| */ |
| int |
| latin_char2bytes(int c, char_u *buf) |
| { |
| buf[0] = c; |
| return 1; |
| } |
| |
| static int |
| dbcs_char2bytes(int c, char_u *buf) |
| { |
| if (c >= 0x100) |
| { |
| buf[0] = (unsigned)c >> 8; |
| buf[1] = c; |
| /* Never use a NUL byte, it causes lots of trouble. It's an invalid |
| * character anyway. */ |
| if (buf[1] == NUL) |
| buf[1] = '\n'; |
| return 2; |
| } |
| buf[0] = c; |
| return 1; |
| } |
| |
| /* |
| * mb_ptr2len() function pointer. |
| * Get byte length of character at "*p" but stop at a NUL. |
| * For UTF-8 this includes following composing characters. |
| * Returns 0 when *p is NUL. |
| */ |
| int |
| latin_ptr2len(char_u *p) |
| { |
| return MB_BYTE2LEN(*p); |
| } |
| |
| static int |
| dbcs_ptr2len( |
| char_u *p) |
| { |
| int len; |
| |
| /* Check if second byte is not missing. */ |
| len = MB_BYTE2LEN(*p); |
| if (len == 2 && p[1] == NUL) |
| len = 1; |
| return len; |
| } |
| |
| /* |
| * mb_ptr2len_len() function pointer. |
| * Like mb_ptr2len(), but limit to read "size" bytes. |
| * Returns 0 for an empty string. |
| * Returns 1 for an illegal char or an incomplete byte sequence. |
| */ |
| int |
| latin_ptr2len_len(char_u *p, int size) |
| { |
| if (size < 1 || *p == NUL) |
| return 0; |
| return 1; |
| } |
| |
| static int |
| dbcs_ptr2len_len(char_u *p, int size) |
| { |
| int len; |
| |
| if (size < 1 || *p == NUL) |
| return 0; |
| if (size == 1) |
| return 1; |
| /* Check that second byte is not missing. */ |
| len = MB_BYTE2LEN(*p); |
| if (len == 2 && p[1] == NUL) |
| len = 1; |
| return len; |
| } |
| |
| struct interval |
| { |
| long first; |
| long last; |
| }; |
| |
| /* |
| * Return TRUE if "c" is in "table[size / sizeof(struct interval)]". |
| */ |
| static int |
| intable(struct interval *table, size_t size, int c) |
| { |
| int mid, bot, top; |
| |
| /* first quick check for Latin1 etc. characters */ |
| if (c < table[0].first) |
| return FALSE; |
| |
| /* binary search in table */ |
| bot = 0; |
| top = (int)(size / sizeof(struct interval) - 1); |
| while (top >= bot) |
| { |
| mid = (bot + top) / 2; |
| if (table[mid].last < c) |
| bot = mid + 1; |
| else if (table[mid].first > c) |
| top = mid - 1; |
| else |
| return TRUE; |
| } |
| return FALSE; |
| } |
| |
| /* Sorted list of non-overlapping intervals of East Asian Ambiguous |
| * characters, generated with ../runtime/tools/unicode.vim. */ |
| static struct interval ambiguous[] = |
| { |
| {0x00a1, 0x00a1}, |
| {0x00a4, 0x00a4}, |
| {0x00a7, 0x00a8}, |
| {0x00aa, 0x00aa}, |
| {0x00ad, 0x00ae}, |
| {0x00b0, 0x00b4}, |
| {0x00b6, 0x00ba}, |
| {0x00bc, 0x00bf}, |
| {0x00c6, 0x00c6}, |
| {0x00d0, 0x00d0}, |
| {0x00d7, 0x00d8}, |
| {0x00de, 0x00e1}, |
| {0x00e6, 0x00e6}, |
| {0x00e8, 0x00ea}, |
| {0x00ec, 0x00ed}, |
| {0x00f0, 0x00f0}, |
| {0x00f2, 0x00f3}, |
| {0x00f7, 0x00fa}, |
| {0x00fc, 0x00fc}, |
| {0x00fe, 0x00fe}, |
| {0x0101, 0x0101}, |
| {0x0111, 0x0111}, |
| {0x0113, 0x0113}, |
| {0x011b, 0x011b}, |
| {0x0126, 0x0127}, |
| {0x012b, 0x012b}, |
| {0x0131, 0x0133}, |
| {0x0138, 0x0138}, |
| {0x013f, 0x0142}, |
| {0x0144, 0x0144}, |
| {0x0148, 0x014b}, |
| {0x014d, 0x014d}, |
| {0x0152, 0x0153}, |
| {0x0166, 0x0167}, |
| {0x016b, 0x016b}, |
| {0x01ce, 0x01ce}, |
| {0x01d0, 0x01d0}, |
| {0x01d2, 0x01d2}, |
| {0x01d4, 0x01d4}, |
| {0x01d6, 0x01d6}, |
| {0x01d8, 0x01d8}, |
| {0x01da, 0x01da}, |
| {0x01dc, 0x01dc}, |
| {0x0251, 0x0251}, |
| {0x0261, 0x0261}, |
| {0x02c4, 0x02c4}, |
| {0x02c7, 0x02c7}, |
| {0x02c9, 0x02cb}, |
| {0x02cd, 0x02cd}, |
| {0x02d0, 0x02d0}, |
| {0x02d8, 0x02db}, |
| {0x02dd, 0x02dd}, |
| {0x02df, 0x02df}, |
| {0x0300, 0x036f}, |
| {0x0391, 0x03a1}, |
| {0x03a3, 0x03a9}, |
| {0x03b1, 0x03c1}, |
| {0x03c3, 0x03c9}, |
| {0x0401, 0x0401}, |
| {0x0410, 0x044f}, |
| {0x0451, 0x0451}, |
| {0x2010, 0x2010}, |
| {0x2013, 0x2016}, |
| {0x2018, 0x2019}, |
| {0x201c, 0x201d}, |
| {0x2020, 0x2022}, |
| {0x2024, 0x2027}, |
| {0x2030, 0x2030}, |
| {0x2032, 0x2033}, |
| {0x2035, 0x2035}, |
| {0x203b, 0x203b}, |
| {0x203e, 0x203e}, |
| {0x2074, 0x2074}, |
| {0x207f, 0x207f}, |
| {0x2081, 0x2084}, |
| {0x20ac, 0x20ac}, |
| {0x2103, 0x2103}, |
| {0x2105, 0x2105}, |
| {0x2109, 0x2109}, |
| {0x2113, 0x2113}, |
| {0x2116, 0x2116}, |
| {0x2121, 0x2122}, |
| {0x2126, 0x2126}, |
| {0x212b, 0x212b}, |
| {0x2153, 0x2154}, |
| {0x215b, 0x215e}, |
| {0x2160, 0x216b}, |
| {0x2170, 0x2179}, |
| {0x2189, 0x2189}, |
| {0x2190, 0x2199}, |
| {0x21b8, 0x21b9}, |
| {0x21d2, 0x21d2}, |
| {0x21d4, 0x21d4}, |
| {0x21e7, 0x21e7}, |
| {0x2200, 0x2200}, |
| {0x2202, 0x2203}, |
| {0x2207, 0x2208}, |
| {0x220b, 0x220b}, |
| {0x220f, 0x220f}, |
| {0x2211, 0x2211}, |
| {0x2215, 0x2215}, |
| {0x221a, 0x221a}, |
| {0x221d, 0x2220}, |
| {0x2223, 0x2223}, |
| {0x2225, 0x2225}, |
| {0x2227, 0x222c}, |
| {0x222e, 0x222e}, |
| {0x2234, 0x2237}, |
| {0x223c, 0x223d}, |
| {0x2248, 0x2248}, |
| {0x224c, 0x224c}, |
| {0x2252, 0x2252}, |
| {0x2260, 0x2261}, |
| {0x2264, 0x2267}, |
| {0x226a, 0x226b}, |
| {0x226e, 0x226f}, |
| {0x2282, 0x2283}, |
| {0x2286, 0x2287}, |
| {0x2295, 0x2295}, |
| {0x2299, 0x2299}, |
| {0x22a5, 0x22a5}, |
| {0x22bf, 0x22bf}, |
| {0x2312, 0x2312}, |
| {0x2460, 0x24e9}, |
| {0x24eb, 0x254b}, |
| {0x2550, 0x2573}, |
| {0x2580, 0x258f}, |
| {0x2592, 0x2595}, |
| {0x25a0, 0x25a1}, |
| {0x25a3, 0x25a9}, |
| {0x25b2, 0x25b3}, |
| {0x25b6, 0x25b7}, |
| {0x25bc, 0x25bd}, |
| {0x25c0, 0x25c1}, |
| {0x25c6, 0x25c8}, |
| {0x25cb, 0x25cb}, |
| {0x25ce, 0x25d1}, |
| {0x25e2, 0x25e5}, |
| {0x25ef, 0x25ef}, |
| {0x2605, 0x2606}, |
| {0x2609, 0x2609}, |
| {0x260e, 0x260f}, |
| {0x261c, 0x261c}, |
| {0x261e, 0x261e}, |
| {0x2640, 0x2640}, |
| {0x2642, 0x2642}, |
| {0x2660, 0x2661}, |
| {0x2663, 0x2665}, |
| {0x2667, 0x266a}, |
| {0x266c, 0x266d}, |
| {0x266f, 0x266f}, |
| {0x269e, 0x269f}, |
| {0x26bf, 0x26bf}, |
| {0x26c6, 0x26cd}, |
| {0x26cf, 0x26d3}, |
| {0x26d5, 0x26e1}, |
| {0x26e3, 0x26e3}, |
| {0x26e8, 0x26e9}, |
| {0x26eb, 0x26f1}, |
| {0x26f4, 0x26f4}, |
| {0x26f6, 0x26f9}, |
| {0x26fb, 0x26fc}, |
| {0x26fe, 0x26ff}, |
| {0x273d, 0x273d}, |
| {0x2776, 0x277f}, |
| {0x2b56, 0x2b59}, |
| {0x3248, 0x324f}, |
| {0xe000, 0xf8ff}, |
| {0xfe00, 0xfe0f}, |
| {0xfffd, 0xfffd}, |
| {0x1f100, 0x1f10a}, |
| {0x1f110, 0x1f12d}, |
| {0x1f130, 0x1f169}, |
| {0x1f170, 0x1f18d}, |
| {0x1f18f, 0x1f190}, |
| {0x1f19b, 0x1f1ac}, |
| {0xe0100, 0xe01ef}, |
| {0xf0000, 0xffffd}, |
| {0x100000, 0x10fffd} |
| }; |
| |
| /* |
| * For UTF-8 character "c" return 2 for a double-width character, 1 for others. |
| * Returns 4 or 6 for an unprintable character. |
| * Is only correct for characters >= 0x80. |
| * When p_ambw is "double", return 2 for a character with East Asian Width |
| * class 'A'(mbiguous). |
| */ |
| int |
| utf_char2cells(int c) |
| { |
| /* Sorted list of non-overlapping intervals of East Asian double width |
| * characters, generated with ../runtime/tools/unicode.vim. */ |
| static struct interval doublewidth[] = |
| { |
| {0x1100, 0x115f}, |
| {0x231a, 0x231b}, |
| {0x2329, 0x232a}, |
| {0x23e9, 0x23ec}, |
| {0x23f0, 0x23f0}, |
| {0x23f3, 0x23f3}, |
| {0x25fd, 0x25fe}, |
| {0x2614, 0x2615}, |
| {0x2648, 0x2653}, |
| {0x267f, 0x267f}, |
| {0x2693, 0x2693}, |
| {0x26a1, 0x26a1}, |
| {0x26aa, 0x26ab}, |
| {0x26bd, 0x26be}, |
| {0x26c4, 0x26c5}, |
| {0x26ce, 0x26ce}, |
| {0x26d4, 0x26d4}, |
| {0x26ea, 0x26ea}, |
| {0x26f2, 0x26f3}, |
| {0x26f5, 0x26f5}, |
| {0x26fa, 0x26fa}, |
| {0x26fd, 0x26fd}, |
| {0x2705, 0x2705}, |
| {0x270a, 0x270b}, |
| {0x2728, 0x2728}, |
| {0x274c, 0x274c}, |
| {0x274e, 0x274e}, |
| {0x2753, 0x2755}, |
| {0x2757, 0x2757}, |
| {0x2795, 0x2797}, |
| {0x27b0, 0x27b0}, |
| {0x27bf, 0x27bf}, |
| {0x2b1b, 0x2b1c}, |
| {0x2b50, 0x2b50}, |
| {0x2b55, 0x2b55}, |
| {0x2e80, 0x2e99}, |
| {0x2e9b, 0x2ef3}, |
| {0x2f00, 0x2fd5}, |
| {0x2ff0, 0x2ffb}, |
| {0x3000, 0x303e}, |
| {0x3041, 0x3096}, |
| {0x3099, 0x30ff}, |
| {0x3105, 0x312d}, |
| {0x3131, 0x318e}, |
| {0x3190, 0x31ba}, |
| {0x31c0, 0x31e3}, |
| {0x31f0, 0x321e}, |
| {0x3220, 0x3247}, |
| {0x3250, 0x32fe}, |
| {0x3300, 0x4dbf}, |
| {0x4e00, 0xa48c}, |
| {0xa490, 0xa4c6}, |
| {0xa960, 0xa97c}, |
| {0xac00, 0xd7a3}, |
| {0xf900, 0xfaff}, |
| {0xfe10, 0xfe19}, |
| {0xfe30, 0xfe52}, |
| {0xfe54, 0xfe66}, |
| {0xfe68, 0xfe6b}, |
| {0xff01, 0xff60}, |
| {0xffe0, 0xffe6}, |
| {0x16fe0, 0x16fe0}, |
| {0x17000, 0x187ec}, |
| {0x18800, 0x18af2}, |
| {0x1b000, 0x1b001}, |
| {0x1f004, 0x1f004}, |
| {0x1f0cf, 0x1f0cf}, |
| {0x1f18e, 0x1f18e}, |
| {0x1f191, 0x1f19a}, |
| {0x1f200, 0x1f202}, |
| {0x1f210, 0x1f23b}, |
| {0x1f240, 0x1f248}, |
| {0x1f250, 0x1f251}, |
| {0x1f300, 0x1f320}, |
| {0x1f32d, 0x1f335}, |
| {0x1f337, 0x1f37c}, |
| {0x1f37e, 0x1f393}, |
| {0x1f3a0, 0x1f3ca}, |
| {0x1f3cf, 0x1f3d3}, |
| {0x1f3e0, 0x1f3f0}, |
| {0x1f3f4, 0x1f3f4}, |
| {0x1f3f8, 0x1f43e}, |
| {0x1f440, 0x1f440}, |
| {0x1f442, 0x1f4fc}, |
| {0x1f4ff, 0x1f53d}, |
| {0x1f54b, 0x1f54e}, |
| {0x1f550, 0x1f567}, |
| {0x1f57a, 0x1f57a}, |
| {0x1f595, 0x1f596}, |
| {0x1f5a4, 0x1f5a4}, |
| {0x1f5fb, 0x1f64f}, |
| {0x1f680, 0x1f6c5}, |
| {0x1f6cc, 0x1f6cc}, |
| {0x1f6d0, 0x1f6d2}, |
| {0x1f6eb, 0x1f6ec}, |
| {0x1f6f4, 0x1f6f6}, |
| {0x1f910, 0x1f91e}, |
| {0x1f920, 0x1f927}, |
| {0x1f930, 0x1f930}, |
| {0x1f933, 0x1f93e}, |
| {0x1f940, 0x1f94b}, |
| {0x1f950, 0x1f95e}, |
| {0x1f980, 0x1f991}, |
| {0x1f9c0, 0x1f9c0}, |
| {0x20000, 0x2fffd}, |
| {0x30000, 0x3fffd} |
| }; |
| |
| /* Sorted list of non-overlapping intervals of Emoji characters that don't |
| * have ambiguous or double width, |
| * based on http://unicode.org/emoji/charts/emoji-list.html */ |
| static struct interval emoji_width[] = |
| { |
| {0x1f004, 0x1f004}, |
| {0x1f0cf, 0x1f0cf}, |
| {0x1f1e6, 0x1f1ff}, |
| {0x1f300, 0x1f320}, |
| {0x1f330, 0x1f335}, |
| {0x1f337, 0x1f37c}, |
| {0x1f380, 0x1f393}, |
| {0x1f3a0, 0x1f3c4}, |
| {0x1f3c6, 0x1f3ca}, |
| {0x1f3e0, 0x1f3f0}, |
| {0x1f400, 0x1f43e}, |
| {0x1f440, 0x1f440}, |
| {0x1f442, 0x1f4f7}, |
| {0x1f4f9, 0x1f4fc}, |
| {0x1f500, 0x1f53d}, |
| {0x1f550, 0x1f567}, |
| {0x1f5fb, 0x1f640}, |
| {0x1f645, 0x1f64f}, |
| {0x1f680, 0x1f6c5} |
| }; |
| |
| if (c >= 0x100) |
| { |
| #ifdef USE_WCHAR_FUNCTIONS |
| /* |
| * Assume the library function wcwidth() works better than our own |
| * stuff. It should return 1 for ambiguous width chars! |
| */ |
| int n = wcwidth(c); |
| |
| if (n < 0) |
| return 6; /* unprintable, displays <xxxx> */ |
| if (n > 1) |
| return n; |
| #else |
| if (!utf_printable(c)) |
| return 6; /* unprintable, displays <xxxx> */ |
| if (intable(doublewidth, sizeof(doublewidth), c)) |
| return 2; |
| #endif |
| if (p_emoji && intable(emoji_width, sizeof(emoji_width), c)) |
| return 2; |
| } |
| |
| /* Characters below 0x100 are influenced by 'isprint' option */ |
| else if (c >= 0x80 && !vim_isprintc(c)) |
| return 4; /* unprintable, displays <xx> */ |
| |
| if (c >= 0x80 && *p_ambw == 'd' && intable(ambiguous, sizeof(ambiguous), c)) |
| return 2; |
| |
| return 1; |
| } |
| |
| /* |
| * mb_ptr2cells() function pointer. |
| * Return the number of display cells character at "*p" occupies. |
| * This doesn't take care of unprintable characters, use ptr2cells() for that. |
| */ |
| int |
| latin_ptr2cells(char_u *p UNUSED) |
| { |
| return 1; |
| } |
| |
| int |
| utf_ptr2cells( |
| char_u *p) |
| { |
| int c; |
| |
| /* Need to convert to a wide character. */ |
| if (*p >= 0x80) |
| { |
| c = utf_ptr2char(p); |
| /* An illegal byte is displayed as <xx>. */ |
| if (utf_ptr2len(p) == 1 || c == NUL) |
| return 4; |
| /* If the char is ASCII it must be an overlong sequence. */ |
| if (c < 0x80) |
| return char2cells(c); |
| return utf_char2cells(c); |
| } |
| return 1; |
| } |
| |
| int |
| dbcs_ptr2cells(char_u *p) |
| { |
| /* Number of cells is equal to number of bytes, except for euc-jp when |
| * the first byte is 0x8e. */ |
| if (enc_dbcs == DBCS_JPNU && *p == 0x8e) |
| return 1; |
| return MB_BYTE2LEN(*p); |
| } |
| |
| /* |
| * mb_ptr2cells_len() function pointer. |
| * Like mb_ptr2cells(), but limit string length to "size". |
| * For an empty string or truncated character returns 1. |
| */ |
| int |
| latin_ptr2cells_len(char_u *p UNUSED, int size UNUSED) |
| { |
| return 1; |
| } |
| |
| static int |
| utf_ptr2cells_len(char_u *p, int size) |
| { |
| int c; |
| |
| /* Need to convert to a wide character. */ |
| if (size > 0 && *p >= 0x80) |
| { |
| if (utf_ptr2len_len(p, size) < utf8len_tab[*p]) |
| return 1; /* truncated */ |
| c = utf_ptr2char(p); |
| /* An illegal byte is displayed as <xx>. */ |
| if (utf_ptr2len(p) == 1 || c == NUL) |
| return 4; |
| /* If the char is ASCII it must be an overlong sequence. */ |
| if (c < 0x80) |
| return char2cells(c); |
| return utf_char2cells(c); |
| } |
| return 1; |
| } |
| |
| static int |
| dbcs_ptr2cells_len(char_u *p, int size) |
| { |
| /* Number of cells is equal to number of bytes, except for euc-jp when |
| * the first byte is 0x8e. */ |
| if (size <= 1 || (enc_dbcs == DBCS_JPNU && *p == 0x8e)) |
| return 1; |
| return MB_BYTE2LEN(*p); |
| } |
| |
| /* |
| * mb_char2cells() function pointer. |
| * Return the number of display cells character "c" occupies. |
| * Only takes care of multi-byte chars, not "^C" and such. |
| */ |
| int |
| latin_char2cells(int c UNUSED) |
| { |
| return 1; |
| } |
| |
| static int |
| dbcs_char2cells(int c) |
| { |
| /* Number of cells is equal to number of bytes, except for euc-jp when |
| * the first byte is 0x8e. */ |
| if (enc_dbcs == DBCS_JPNU && ((unsigned)c >> 8) == 0x8e) |
| return 1; |
| /* use the first byte */ |
| return MB_BYTE2LEN((unsigned)c >> 8); |
| } |
| |
| /* |
| * Return the number of cells occupied by string "p". |
| * Stop at a NUL character. When "len" >= 0 stop at character "p[len]". |
| */ |
| int |
| mb_string2cells(char_u *p, int len) |
| { |
| int i; |
| int clen = 0; |
| |
| for (i = 0; (len < 0 || i < len) && p[i] != NUL; i += (*mb_ptr2len)(p + i)) |
| clen += (*mb_ptr2cells)(p + i); |
| return clen; |
| } |
| |
| /* |
| * mb_off2cells() function pointer. |
| * Return number of display cells for char at ScreenLines[off]. |
| * We make sure that the offset used is less than "max_off". |
| */ |
| int |
| latin_off2cells(unsigned off UNUSED, unsigned max_off UNUSED) |
| { |
| return 1; |
| } |
| |
| int |
| dbcs_off2cells(unsigned off, unsigned max_off) |
| { |
| /* never check beyond end of the line */ |
| if (off >= max_off) |
| return 1; |
| |
| /* Number of cells is equal to number of bytes, except for euc-jp when |
| * the first byte is 0x8e. */ |
| if (enc_dbcs == DBCS_JPNU && ScreenLines[off] == 0x8e) |
| return 1; |
| return MB_BYTE2LEN(ScreenLines[off]); |
| } |
| |
| int |
| utf_off2cells(unsigned off, unsigned max_off) |
| { |
| return (off + 1 < max_off && ScreenLines[off + 1] == 0) ? 2 : 1; |
| } |
| |
| /* |
| * mb_ptr2char() function pointer. |
| * Convert a byte sequence into a character. |
| */ |
| int |
| latin_ptr2char(char_u *p) |
| { |
| return *p; |
| } |
| |
| static int |
| dbcs_ptr2char(char_u *p) |
| { |
| if (MB_BYTE2LEN(*p) > 1 && p[1] != NUL) |
| return (p[0] << 8) + p[1]; |
| return *p; |
| } |
| |
| /* |
| * Convert a UTF-8 byte sequence to a wide character. |
| * If the sequence is illegal or truncated by a NUL the first byte is |
| * returned. |
| * Does not include composing characters, of course. |
| */ |
| int |
| utf_ptr2char(char_u *p) |
| { |
| int len; |
| |
| if (p[0] < 0x80) /* be quick for ASCII */ |
| return p[0]; |
| |
| len = utf8len_tab_zero[p[0]]; |
| if (len > 1 && (p[1] & 0xc0) == 0x80) |
| { |
| if (len == 2) |
| return ((p[0] & 0x1f) << 6) + (p[1] & 0x3f); |
| if ((p[2] & 0xc0) == 0x80) |
| { |
| if (len == 3) |
| return ((p[0] & 0x0f) << 12) + ((p[1] & 0x3f) << 6) |
| + (p[2] & 0x3f); |
| if ((p[3] & 0xc0) == 0x80) |
| { |
| if (len == 4) |
| return ((p[0] & 0x07) << 18) + ((p[1] & 0x3f) << 12) |
| + ((p[2] & 0x3f) << 6) + (p[3] & 0x3f); |
| if ((p[4] & 0xc0) == 0x80) |
| { |
| if (len == 5) |
| return ((p[0] & 0x03) << 24) + ((p[1] & 0x3f) << 18) |
| + ((p[2] & 0x3f) << 12) + ((p[3] & 0x3f) << 6) |
| + (p[4] & 0x3f); |
| if ((p[5] & 0xc0) == 0x80 && len == 6) |
| return ((p[0] & 0x01) << 30) + ((p[1] & 0x3f) << 24) |
| + ((p[2] & 0x3f) << 18) + ((p[3] & 0x3f) << 12) |
| + ((p[4] & 0x3f) << 6) + (p[5] & 0x3f); |
| } |
| } |
| } |
| } |
| /* Illegal value, just return the first byte */ |
| return p[0]; |
| } |
| |
| /* |
| * Convert a UTF-8 byte sequence to a wide character. |
| * String is assumed to be terminated by NUL or after "n" bytes, whichever |
| * comes first. |
| * The function is safe in the sense that it never accesses memory beyond the |
| * first "n" bytes of "s". |
| * |
| * On success, returns decoded codepoint, advances "s" to the beginning of |
| * next character and decreases "n" accordingly. |
| * |
| * If end of string was reached, returns 0 and, if "n" > 0, advances "s" past |
| * NUL byte. |
| * |
| * If byte sequence is illegal or incomplete, returns -1 and does not advance |
| * "s". |
| */ |
| static int |
| utf_safe_read_char_adv(char_u **s, size_t *n) |
| { |
| int c, k; |
| |
| if (*n == 0) /* end of buffer */ |
| return 0; |
| |
| k = utf8len_tab_zero[**s]; |
| |
| if (k == 1) |
| { |
| /* ASCII character or NUL */ |
| (*n)--; |
| return *(*s)++; |
| } |
| |
| if ((size_t)k <= *n) |
| { |
| /* We have a multibyte sequence and it isn't truncated by buffer |
| * limits so utf_ptr2char() is safe to use. Or the first byte is |
| * illegal (k=0), and it's also safe to use utf_ptr2char(). */ |
| c = utf_ptr2char(*s); |
| |
| /* On failure, utf_ptr2char() returns the first byte, so here we |
| * check equality with the first byte. The only non-ASCII character |
| * which equals the first byte of its own UTF-8 representation is |
| * U+00C3 (UTF-8: 0xC3 0x83), so need to check that special case too. |
| * It's safe even if n=1, else we would have k=2 > n. */ |
| if (c != (int)(**s) || (c == 0xC3 && (*s)[1] == 0x83)) |
| { |
| /* byte sequence was successfully decoded */ |
| *s += k; |
| *n -= k; |
| return c; |
| } |
| } |
| |
| /* byte sequence is incomplete or illegal */ |
| return -1; |
| } |
| |
| /* |
| * Get character at **pp and advance *pp to the next character. |
| * Note: composing characters are skipped! |
| */ |
| int |
| mb_ptr2char_adv(char_u **pp) |
| { |
| int c; |
| |
| c = (*mb_ptr2char)(*pp); |
| *pp += (*mb_ptr2len)(*pp); |
| return c; |
| } |
| |
| /* |
| * Get character at **pp and advance *pp to the next character. |
| * Note: composing characters are returned as separate characters. |
| */ |
| int |
| mb_cptr2char_adv(char_u **pp) |
| { |
| int c; |
| |
| c = (*mb_ptr2char)(*pp); |
| if (enc_utf8) |
| *pp += utf_ptr2len(*pp); |
| else |
| *pp += (*mb_ptr2len)(*pp); |
| return c; |
| } |
| |
| #if defined(FEAT_ARABIC) || defined(PROTO) |
| /* |
| * Check whether we are dealing with Arabic combining characters. |
| * Note: these are NOT really composing characters! |
| */ |
| int |
| arabic_combine( |
| int one, /* first character */ |
| int two) /* character just after "one" */ |
| { |
| if (one == a_LAM) |
| return arabic_maycombine(two); |
| return FALSE; |
| } |
| |
| /* |
| * Check whether we are dealing with a character that could be regarded as an |
| * Arabic combining character, need to check the character before this. |
| */ |
| int |
| arabic_maycombine(int two) |
| { |
| if (p_arshape && !p_tbidi) |
| return (two == a_ALEF_MADDA |
| || two == a_ALEF_HAMZA_ABOVE |
| || two == a_ALEF_HAMZA_BELOW |
| || two == a_ALEF); |
| return FALSE; |
| } |
| |
| /* |
| * Check if the character pointed to by "p2" is a composing character when it |
| * comes after "p1". For Arabic sometimes "ab" is replaced with "c", which |
| * behaves like a composing character. |
| */ |
| int |
| utf_composinglike(char_u *p1, char_u *p2) |
| { |
| int c2; |
| |
| c2 = utf_ptr2char(p2); |
| if (utf_iscomposing(c2)) |
| return TRUE; |
| if (!arabic_maycombine(c2)) |
| return FALSE; |
| return arabic_combine(utf_ptr2char(p1), c2); |
| } |
| #endif |
| |
| /* |
| * Convert a UTF-8 byte string to a wide character. Also get up to MAX_MCO |
| * composing characters. |
| */ |
| int |
| utfc_ptr2char( |
| char_u *p, |
| int *pcc) /* return: composing chars, last one is 0 */ |
| { |
| int len; |
| int c; |
| int cc; |
| int i = 0; |
| |
| c = utf_ptr2char(p); |
| len = utf_ptr2len(p); |
| |
| /* Only accept a composing char when the first char isn't illegal. */ |
| if ((len > 1 || *p < 0x80) |
| && p[len] >= 0x80 |
| && UTF_COMPOSINGLIKE(p, p + len)) |
| { |
| cc = utf_ptr2char(p + len); |
| for (;;) |
| { |
| pcc[i++] = cc; |
| if (i == MAX_MCO) |
| break; |
| len += utf_ptr2len(p + len); |
| if (p[len] < 0x80 || !utf_iscomposing(cc = utf_ptr2char(p + len))) |
| break; |
| } |
| } |
| |
| if (i < MAX_MCO) /* last composing char must be 0 */ |
| pcc[i] = 0; |
| |
| return c; |
| } |
| |
| /* |
| * Convert a UTF-8 byte string to a wide character. Also get up to MAX_MCO |
| * composing characters. Use no more than p[maxlen]. |
| */ |
| int |
| utfc_ptr2char_len( |
| char_u *p, |
| int *pcc, /* return: composing chars, last one is 0 */ |
| int maxlen) |
| { |
| int len; |
| int c; |
| int cc; |
| int i = 0; |
| |
| c = utf_ptr2char(p); |
| len = utf_ptr2len_len(p, maxlen); |
| /* Only accept a composing char when the first char isn't illegal. */ |
| if ((len > 1 || *p < 0x80) |
| && len < maxlen |
| && p[len] >= 0x80 |
| && UTF_COMPOSINGLIKE(p, p + len)) |
| { |
| cc = utf_ptr2char(p + len); |
| for (;;) |
| { |
| pcc[i++] = cc; |
| if (i == MAX_MCO) |
| break; |
| len += utf_ptr2len_len(p + len, maxlen - len); |
| if (len >= maxlen |
| || p[len] < 0x80 |
| || !utf_iscomposing(cc = utf_ptr2char(p + len))) |
| break; |
| } |
| } |
| |
| if (i < MAX_MCO) /* last composing char must be 0 */ |
| pcc[i] = 0; |
| |
| return c; |
| } |
| |
| /* |
| * Convert the character at screen position "off" to a sequence of bytes. |
| * Includes the composing characters. |
| * "buf" must at least have the length MB_MAXBYTES + 1. |
| * Only to be used when ScreenLinesUC[off] != 0. |
| * Returns the produced number of bytes. |
| */ |
| int |
| utfc_char2bytes(int off, char_u *buf) |
| { |
| int len; |
| int i; |
| |
| len = utf_char2bytes(ScreenLinesUC[off], buf); |
| for (i = 0; i < Screen_mco; ++i) |
| { |
| if (ScreenLinesC[i][off] == 0) |
| break; |
| len += utf_char2bytes(ScreenLinesC[i][off], buf + len); |
| } |
| return len; |
| } |
| |
| /* |
| * Get the length of a UTF-8 byte sequence, not including any following |
| * composing characters. |
| * Returns 0 for "". |
| * Returns 1 for an illegal byte sequence. |
| */ |
| int |
| utf_ptr2len(char_u *p) |
| { |
| int len; |
| int i; |
| |
| if (*p == NUL) |
| return 0; |
| len = utf8len_tab[*p]; |
| for (i = 1; i < len; ++i) |
| if ((p[i] & 0xc0) != 0x80) |
| return 1; |
| return len; |
| } |
| |
| /* |
| * Return length of UTF-8 character, obtained from the first byte. |
| * "b" must be between 0 and 255! |
| * Returns 1 for an invalid first byte value. |
| */ |
| int |
| utf_byte2len(int b) |
| { |
| return utf8len_tab[b]; |
| } |
| |
| /* |
| * Get the length of UTF-8 byte sequence "p[size]". Does not include any |
| * following composing characters. |
| * Returns 1 for "". |
| * Returns 1 for an illegal byte sequence (also in incomplete byte seq.). |
| * Returns number > "size" for an incomplete byte sequence. |
| * Never returns zero. |
| */ |
| int |
| utf_ptr2len_len(char_u *p, int size) |
| { |
| int len; |
| int i; |
| int m; |
| |
| len = utf8len_tab[*p]; |
| if (len == 1) |
| return 1; /* NUL, ascii or illegal lead byte */ |
| if (len > size) |
| m = size; /* incomplete byte sequence. */ |
| else |
| m = len; |
| for (i = 1; i < m; ++i) |
| if ((p[i] & 0xc0) != 0x80) |
| return 1; |
| return len; |
| } |
| |
| /* |
| * Return the number of bytes the UTF-8 encoding of the character at "p" takes. |
| * This includes following composing characters. |
| */ |
| int |
| utfc_ptr2len(char_u *p) |
| { |
| int len; |
| int b0 = *p; |
| #ifdef FEAT_ARABIC |
| int prevlen; |
| #endif |
| |
| if (b0 == NUL) |
| return 0; |
| if (b0 < 0x80 && p[1] < 0x80) /* be quick for ASCII */ |
| return 1; |
| |
| /* Skip over first UTF-8 char, stopping at a NUL byte. */ |
| len = utf_ptr2len(p); |
| |
| /* Check for illegal byte. */ |
| if (len == 1 && b0 >= 0x80) |
| return 1; |
| |
| /* |
| * Check for composing characters. We can handle only the first six, but |
| * skip all of them (otherwise the cursor would get stuck). |
| */ |
| #ifdef FEAT_ARABIC |
| prevlen = 0; |
| #endif |
| for (;;) |
| { |
| if (p[len] < 0x80 || !UTF_COMPOSINGLIKE(p + prevlen, p + len)) |
| return len; |
| |
| /* Skip over composing char */ |
| #ifdef FEAT_ARABIC |
| prevlen = len; |
| #endif |
| len += utf_ptr2len(p + len); |
| } |
| } |
| |
| /* |
| * Return the number of bytes the UTF-8 encoding of the character at "p[size]" |
| * takes. This includes following composing characters. |
| * Returns 0 for an empty string. |
| * Returns 1 for an illegal char or an incomplete byte sequence. |
| */ |
| int |
| utfc_ptr2len_len(char_u *p, int size) |
| { |
| int len; |
| #ifdef FEAT_ARABIC |
| int prevlen; |
| #endif |
| |
| if (size < 1 || *p == NUL) |
| return 0; |
| if (p[0] < 0x80 && (size == 1 || p[1] < 0x80)) /* be quick for ASCII */ |
| return 1; |
| |
| /* Skip over first UTF-8 char, stopping at a NUL byte. */ |
| len = utf_ptr2len_len(p, size); |
| |
| /* Check for illegal byte and incomplete byte sequence. */ |
| if ((len == 1 && p[0] >= 0x80) || len > size) |
| return 1; |
| |
| /* |
| * Check for composing characters. We can handle only the first six, but |
| * skip all of them (otherwise the cursor would get stuck). |
| */ |
| #ifdef FEAT_ARABIC |
| prevlen = 0; |
| #endif |
| while (len < size) |
| { |
| int len_next_char; |
| |
| if (p[len] < 0x80) |
| break; |
| |
| /* |
| * Next character length should not go beyond size to ensure that |
| * UTF_COMPOSINGLIKE(...) does not read beyond size. |
| */ |
| len_next_char = utf_ptr2len_len(p + len, size - len); |
| if (len_next_char > size - len) |
| break; |
| |
| if (!UTF_COMPOSINGLIKE(p + prevlen, p + len)) |
| break; |
| |
| /* Skip over composing char */ |
| #ifdef FEAT_ARABIC |
| prevlen = len; |
| #endif |
| len += len_next_char; |
| } |
| return len; |
| } |
| |
| /* |
| * Return the number of bytes the UTF-8 encoding of character "c" takes. |
| * This does not include composing characters. |
| */ |
| int |
| utf_char2len(int c) |
| { |
| if (c < 0x80) |
| return 1; |
| if (c < 0x800) |
| return 2; |
| if (c < 0x10000) |
| return 3; |
| if (c < 0x200000) |
| return 4; |
| if (c < 0x4000000) |
| return 5; |
| return 6; |
| } |
| |
| /* |
| * Convert Unicode character "c" to UTF-8 string in "buf[]". |
| * Returns the number of bytes. |
| * This does not include composing characters. |
| */ |
| int |
| utf_char2bytes(int c, char_u *buf) |
| { |
| if (c < 0x80) /* 7 bits */ |
| { |
| buf[0] = c; |
| return 1; |
| } |
| if (c < 0x800) /* 11 bits */ |
| { |
| buf[0] = 0xc0 + ((unsigned)c >> 6); |
| buf[1] = 0x80 + (c & 0x3f); |
| return 2; |
| } |
| if (c < 0x10000) /* 16 bits */ |
| { |
| buf[0] = 0xe0 + ((unsigned)c >> 12); |
| buf[1] = 0x80 + (((unsigned)c >> 6) & 0x3f); |
| buf[2] = 0x80 + (c & 0x3f); |
| return 3; |
| } |
| if (c < 0x200000) /* 21 bits */ |
| { |
| buf[0] = 0xf0 + ((unsigned)c >> 18); |
| buf[1] = 0x80 + (((unsigned)c >> 12) & 0x3f); |
| buf[2] = 0x80 + (((unsigned)c >> 6) & 0x3f); |
| buf[3] = 0x80 + (c & 0x3f); |
| return 4; |
| } |
| if (c < 0x4000000) /* 26 bits */ |
| { |
| buf[0] = 0xf8 + ((unsigned)c >> 24); |
| buf[1] = 0x80 + (((unsigned)c >> 18) & 0x3f); |
| buf[2] = 0x80 + (((unsigned)c >> 12) & 0x3f); |
| buf[3] = 0x80 + (((unsigned)c >> 6) & 0x3f); |
| buf[4] = 0x80 + (c & 0x3f); |
| return 5; |
| } |
| /* 31 bits */ |
| buf[0] = 0xfc + ((unsigned)c >> 30); |
| buf[1] = 0x80 + (((unsigned)c >> 24) & 0x3f); |
| buf[2] = 0x80 + (((unsigned)c >> 18) & 0x3f); |
| buf[3] = 0x80 + (((unsigned)c >> 12) & 0x3f); |
| buf[4] = 0x80 + (((unsigned)c >> 6) & 0x3f); |
| buf[5] = 0x80 + (c & 0x3f); |
| return 6; |
| } |
| |
| /* |
| * Return TRUE if "c" is a composing UTF-8 character. This means it will be |
| * drawn on top of the preceding character. |
| * Based on code from Markus Kuhn. |
| */ |
| int |
| utf_iscomposing(int c) |
| { |
| /* Sorted list of non-overlapping intervals. |
| * Generated by ../runtime/tools/unicode.vim. */ |
| static struct interval combining[] = |
| { |
| {0x0300, 0x036f}, |
| {0x0483, 0x0489}, |
| {0x0591, 0x05bd}, |
| {0x05bf, 0x05bf}, |
| {0x05c1, 0x05c2}, |
| {0x05c4, 0x05c5}, |
| {0x05c7, 0x05c7}, |
| {0x0610, 0x061a}, |
| {0x064b, 0x065f}, |
| {0x0670, 0x0670}, |
| {0x06d6, 0x06dc}, |
| {0x06df, 0x06e4}, |
| {0x06e7, 0x06e8}, |
| {0x06ea, 0x06ed}, |
| {0x0711, 0x0711}, |
| {0x0730, 0x074a}, |
| {0x07a6, 0x07b0}, |
| {0x07eb, 0x07f3}, |
| {0x0816, 0x0819}, |
| {0x081b, 0x0823}, |
| {0x0825, 0x0827}, |
| {0x0829, 0x082d}, |
| {0x0859, 0x085b}, |
| {0x08d4, 0x08e1}, |
| {0x08e3, 0x0903}, |
| {0x093a, 0x093c}, |
| {0x093e, 0x094f}, |
| {0x0951, 0x0957}, |
| {0x0962, 0x0963}, |
| {0x0981, 0x0983}, |
| {0x09bc, 0x09bc}, |
| {0x09be, 0x09c4}, |
| {0x09c7, 0x09c8}, |
| {0x09cb, 0x09cd}, |
| {0x09d7, 0x09d7}, |
| {0x09e2, 0x09e3}, |
| {0x0a01, 0x0a03}, |
| {0x0a3c, 0x0a3c}, |
| {0x0a3e, 0x0a42}, |
| {0x0a47, 0x0a48}, |
| {0x0a4b, 0x0a4d}, |
| {0x0a51, 0x0a51}, |
| {0x0a70, 0x0a71}, |
| {0x0a75, 0x0a75}, |
| {0x0a81, 0x0a83}, |
| {0x0abc, 0x0abc}, |
| {0x0abe, 0x0ac5}, |
| {0x0ac7, 0x0ac9}, |
| {0x0acb, 0x0acd}, |
| {0x0ae2, 0x0ae3}, |
| {0x0b01, 0x0b03}, |
| {0x0b3c, 0x0b3c}, |
| {0x0b3e, 0x0b44}, |
| {0x0b47, 0x0b48}, |
| {0x0b4b, 0x0b4d}, |
| {0x0b56, 0x0b57}, |
| {0x0b62, 0x0b63}, |
| {0x0b82, 0x0b82}, |
| {0x0bbe, 0x0bc2}, |
| {0x0bc6, 0x0bc8}, |
| {0x0bca, 0x0bcd}, |
| {0x0bd7, 0x0bd7}, |
| {0x0c00, 0x0c03}, |
| {0x0c3e, 0x0c44}, |
| {0x0c46, 0x0c48}, |
| {0x0c4a, 0x0c4d}, |
| {0x0c55, 0x0c56}, |
| {0x0c62, 0x0c63}, |
| {0x0c81, 0x0c83}, |
| {0x0cbc, 0x0cbc}, |
| {0x0cbe, 0x0cc4}, |
| {0x0cc6, 0x0cc8}, |
| {0x0cca, 0x0ccd}, |
| {0x0cd5, 0x0cd6}, |
| {0x0ce2, 0x0ce3}, |
| {0x0d01, 0x0d03}, |
| {0x0d3e, 0x0d44}, |
| {0x0d46, 0x0d48}, |
| {0x0d4a, 0x0d4d}, |
| {0x0d57, 0x0d57}, |
| {0x0d62, 0x0d63}, |
| {0x0d82, 0x0d83}, |
| {0x0dca, 0x0dca}, |
| {0x0dcf, 0x0dd4}, |
| {0x0dd6, 0x0dd6}, |
| {0x0dd8, 0x0ddf}, |
| {0x0df2, 0x0df3}, |
| {0x0e31, 0x0e31}, |
| {0x0e34, 0x0e3a}, |
| {0x0e47, 0x0e4e}, |
| {0x0eb1, 0x0eb1}, |
| {0x0eb4, 0x0eb9}, |
| {0x0ebb, 0x0ebc}, |
| {0x0ec8, 0x0ecd}, |
| {0x0f18, 0x0f19}, |
| {0x0f35, 0x0f35}, |
| {0x0f37, 0x0f37}, |
| {0x0f39, 0x0f39}, |
| {0x0f3e, 0x0f3f}, |
| {0x0f71, 0x0f84}, |
| {0x0f86, 0x0f87}, |
| {0x0f8d, 0x0f97}, |
| {0x0f99, 0x0fbc}, |
| {0x0fc6, 0x0fc6}, |
| {0x102b, 0x103e}, |
| {0x1056, 0x1059}, |
| {0x105e, 0x1060}, |
| {0x1062, 0x1064}, |
| {0x1067, 0x106d}, |
| {0x1071, 0x1074}, |
| {0x1082, 0x108d}, |
| {0x108f, 0x108f}, |
| {0x109a, 0x109d}, |
| {0x135d, 0x135f}, |
| {0x1712, 0x1714}, |
| {0x1732, 0x1734}, |
| {0x1752, 0x1753}, |
| {0x1772, 0x1773}, |
| {0x17b4, 0x17d3}, |
| {0x17dd, 0x17dd}, |
| {0x180b, 0x180d}, |
| {0x1885, 0x1886}, |
| {0x18a9, 0x18a9}, |
| {0x1920, 0x192b}, |
| {0x1930, 0x193b}, |
| {0x1a17, 0x1a1b}, |
| {0x1a55, 0x1a5e}, |
| {0x1a60, 0x1a7c}, |
| {0x1a7f, 0x1a7f}, |
| {0x1ab0, 0x1abe}, |
| {0x1b00, 0x1b04}, |
| {0x1b34, 0x1b44}, |
| {0x1b6b, 0x1b73}, |
| {0x1b80, 0x1b82}, |
| {0x1ba1, 0x1bad}, |
| {0x1be6, 0x1bf3}, |
| {0x1c24, 0x1c37}, |
| {0x1cd0, 0x1cd2}, |
| {0x1cd4, 0x1ce8}, |
| {0x1ced, 0x1ced}, |
| {0x1cf2, 0x1cf4}, |
| {0x1cf8, 0x1cf9}, |
| {0x1dc0, 0x1df5}, |
| {0x1dfb, 0x1dff}, |
| {0x20d0, 0x20f0}, |
| {0x2cef, 0x2cf1}, |
| {0x2d7f, 0x2d7f}, |
| {0x2de0, 0x2dff}, |
| {0x302a, 0x302f}, |
| {0x3099, 0x309a}, |
| {0xa66f, 0xa672}, |
| {0xa674, 0xa67d}, |
| {0xa69e, 0xa69f}, |
| {0xa6f0, 0xa6f1}, |
| {0xa802, 0xa802}, |
| {0xa806, 0xa806}, |
| {0xa80b, 0xa80b}, |
| {0xa823, 0xa827}, |
| {0xa880, 0xa881}, |
| {0xa8b4, 0xa8c5}, |
| {0xa8e0, 0xa8f1}, |
| {0xa926, 0xa92d}, |
| {0xa947, 0xa953}, |
| {0xa980, 0xa983}, |
| {0xa9b3, 0xa9c0}, |
| {0xa9e5, 0xa9e5}, |
| {0xaa29, 0xaa36}, |
| {0xaa43, 0xaa43}, |
| {0xaa4c, 0xaa4d}, |
| {0xaa7b, 0xaa7d}, |
| {0xaab0, 0xaab0}, |
| {0xaab2, 0xaab4}, |
| {0xaab7, 0xaab8}, |
| {0xaabe, 0xaabf}, |
| {0xaac1, 0xaac1}, |
| {0xaaeb, 0xaaef}, |
| {0xaaf5, 0xaaf6}, |
| {0xabe3, 0xabea}, |
| {0xabec, 0xabed}, |
| {0xfb1e, 0xfb1e}, |
| {0xfe00, 0xfe0f}, |
| {0xfe20, 0xfe2f}, |
| {0x101fd, 0x101fd}, |
| {0x102e0, 0x102e0}, |
| {0x10376, 0x1037a}, |
| {0x10a01, 0x10a03}, |
| {0x10a05, 0x10a06}, |
| {0x10a0c, 0x10a0f}, |
| {0x10a38, 0x10a3a}, |
| {0x10a3f, 0x10a3f}, |
| {0x10ae5, 0x10ae6}, |
| {0x11000, 0x11002}, |
| {0x11038, 0x11046}, |
| {0x1107f, 0x11082}, |
| {0x110b0, 0x110ba}, |
| {0x11100, 0x11102}, |
| {0x11127, 0x11134}, |
| {0x11173, 0x11173}, |
| {0x11180, 0x11182}, |
| {0x111b3, 0x111c0}, |
| {0x111ca, 0x111cc}, |
| {0x1122c, 0x11237}, |
| {0x1123e, 0x1123e}, |
| {0x112df, 0x112ea}, |
| {0x11300, 0x11303}, |
| {0x1133c, 0x1133c}, |
| {0x1133e, 0x11344}, |
| {0x11347, 0x11348}, |
| {0x1134b, 0x1134d}, |
| {0x11357, 0x11357}, |
| {0x11362, 0x11363}, |
| {0x11366, 0x1136c}, |
| {0x11370, 0x11374}, |
| {0x11435, 0x11446}, |
| {0x114b0, 0x114c3}, |
| {0x115af, 0x115b5}, |
| {0x115b8, 0x115c0}, |
| {0x115dc, 0x115dd}, |
| {0x11630, 0x11640}, |
| {0x116ab, 0x116b7}, |
| {0x1171d, 0x1172b}, |
| {0x11c2f, 0x11c36}, |
| {0x11c38, 0x11c3f}, |
| {0x11c92, 0x11ca7}, |
| {0x11ca9, 0x11cb6}, |
| {0x16af0, 0x16af4}, |
| {0x16b30, 0x16b36}, |
| {0x16f51, 0x16f7e}, |
| {0x16f8f, 0x16f92}, |
| {0x1bc9d, 0x1bc9e}, |
| {0x1d165, 0x1d169}, |
| {0x1d16d, 0x1d172}, |
| {0x1d17b, 0x1d182}, |
| {0x1d185, 0x1d18b}, |
| {0x1d1aa, 0x1d1ad}, |
| {0x1d242, 0x1d244}, |
| {0x1da00, 0x1da36}, |
| {0x1da3b, 0x1da6c}, |
| {0x1da75, 0x1da75}, |
| {0x1da84, 0x1da84}, |
| {0x1da9b, 0x1da9f}, |
| {0x1daa1, 0x1daaf}, |
| {0x1e000, 0x1e006}, |
| {0x1e008, 0x1e018}, |
| {0x1e01b, 0x1e021}, |
| {0x1e023, 0x1e024}, |
| {0x1e026, 0x1e02a}, |
| {0x1e8d0, 0x1e8d6}, |
| {0x1e944, 0x1e94a}, |
| {0xe0100, 0xe01ef} |
| }; |
| |
| return intable(combining, sizeof(combining), c); |
| } |
| |
| /* |
| * Return TRUE for characters that can be displayed in a normal way. |
| * Only for characters of 0x100 and above! |
| */ |
| int |
| utf_printable(int c) |
| { |
| #ifdef USE_WCHAR_FUNCTIONS |
| /* |
| * Assume the iswprint() library function works better than our own stuff. |
| */ |
| return iswprint(c); |
| #else |
| /* Sorted list of non-overlapping intervals. |
| * 0xd800-0xdfff is reserved for UTF-16, actually illegal. */ |
| static struct interval nonprint[] = |
| { |
| {0x070f, 0x070f}, {0x180b, 0x180e}, {0x200b, 0x200f}, {0x202a, 0x202e}, |
| {0x206a, 0x206f}, {0xd800, 0xdfff}, {0xfeff, 0xfeff}, {0xfff9, 0xfffb}, |
| {0xfffe, 0xffff} |
| }; |
| |
| return !intable(nonprint, sizeof(nonprint), c); |
| #endif |
| } |
| |
| /* Sorted list of non-overlapping intervals of all Emoji characters, |
| * based on http://unicode.org/emoji/charts/emoji-list.html */ |
| static struct interval emoji_all[] = |
| { |
| {0x203c, 0x203c}, |
| {0x2049, 0x2049}, |
| {0x2122, 0x2122}, |
| {0x2139, 0x2139}, |
| {0x2194, 0x2199}, |
| {0x21a9, 0x21aa}, |
| {0x231a, 0x231b}, |
| {0x2328, 0x2328}, |
| {0x23cf, 0x23cf}, |
| {0x23e9, 0x23f3}, |
| {0x24c2, 0x24c2}, |
| {0x25aa, 0x25ab}, |
| {0x25b6, 0x25b6}, |
| {0x25c0, 0x25c0}, |
| {0x25fb, 0x25fe}, |
| {0x2600, 0x2604}, |
| {0x260e, 0x260e}, |
| {0x2611, 0x2611}, |
| {0x2614, 0x2615}, |
| {0x2618, 0x2618}, |
| {0x261d, 0x261d}, |
| {0x2620, 0x2620}, |
| {0x2622, 0x2623}, |
| {0x2626, 0x2626}, |
| {0x262a, 0x262a}, |
| {0x262e, 0x262f}, |
| {0x2638, 0x263a}, |
| {0x2648, 0x2653}, |
| {0x2660, 0x2660}, |
| {0x2663, 0x2663}, |
| {0x2665, 0x2666}, |
| {0x2668, 0x2668}, |
| {0x267b, 0x267b}, |
| {0x267f, 0x267f}, |
| {0x2692, 0x2694}, |
| {0x2696, 0x2697}, |
| {0x2699, 0x2699}, |
| {0x269b, 0x269c}, |
| {0x26a0, 0x26a1}, |
| {0x26aa, 0x26ab}, |
| {0x26b0, 0x26b1}, |
| {0x26bd, 0x26be}, |
| {0x26c4, 0x26c5}, |
| {0x26c8, 0x26c8}, |
| {0x26ce, 0x26cf}, |
| {0x26d1, 0x26d1}, |
| {0x26d3, 0x26d4}, |
| {0x26e9, 0x26ea}, |
| {0x26f0, 0x26f5}, |
| {0x26f7, 0x26fa}, |
| {0x26fd, 0x26fd}, |
| {0x2702, 0x2702}, |
| {0x2705, 0x2705}, |
| {0x2708, 0x270d}, |
| {0x270f, 0x270f}, |
| {0x2712, 0x2712}, |
| {0x2714, 0x2714}, |
| {0x2716, 0x2716}, |
| {0x271d, 0x271d}, |
| {0x2721, 0x2721}, |
| {0x2728, 0x2728}, |
| {0x2733, 0x2734}, |
| {0x2744, 0x2744}, |
| {0x2747, 0x2747}, |
| {0x274c, 0x274c}, |
| {0x274e, 0x274e}, |
| {0x2753, 0x2755}, |
| {0x2757, 0x2757}, |
| {0x2763, 0x2764}, |
| {0x2795, 0x2797}, |
| {0x27a1, 0x27a1}, |
| {0x27b0, 0x27b0}, |
| {0x27bf, 0x27bf}, |
| {0x2934, 0x2935}, |
| {0x2b05, 0x2b07}, |
| {0x2b1b, 0x2b1c}, |
| {0x2b50, 0x2b50}, |
| {0x2b55, 0x2b55}, |
| {0x3030, 0x3030}, |
| {0x303d, 0x303d}, |
| {0x3297, 0x3297}, |
| {0x3299, 0x3299}, |
| {0x1f004, 0x1f004}, |
| {0x1f0cf, 0x1f0cf}, |
| {0x1f170, 0x1f171}, |
| {0x1f17e, 0x1f17f}, |
| {0x1f18e, 0x1f18e}, |
| {0x1f191, 0x1f19a}, |
| {0x1f1e6, 0x1f1ff}, |
| {0x1f201, 0x1f202}, |
| {0x1f21a, 0x1f21a}, |
| {0x1f22f, 0x1f22f}, |
| {0x1f232, 0x1f23a}, |
| {0x1f250, 0x1f251}, |
| {0x1f300, 0x1f320}, |
| {0x1f330, 0x1f335}, |
| {0x1f337, 0x1f37c}, |
| {0x1f380, 0x1f393}, |
| {0x1f3a0, 0x1f3c4}, |
| {0x1f3c6, 0x1f3ca}, |
| {0x1f3e0, 0x1f3f0}, |
| {0x1f400, 0x1f43e}, |
| {0x1f440, 0x1f440}, |
| {0x1f442, 0x1f4f7}, |
| {0x1f4f9, 0x1f4fc}, |
| {0x1f500, 0x1f53d}, |
| {0x1f550, 0x1f567}, |
| {0x1f5fb, 0x1f640}, |
| {0x1f645, 0x1f64f}, |
| {0x1f680, 0x1f6c5} |
| }; |
| |
| /* |
| * Get class of a Unicode character. |
| * 0: white space |
| * 1: punctuation |
| * 2 or bigger: some class of word character. |
| */ |
| int |
| utf_class(int c) |
| { |
| /* sorted list of non-overlapping intervals */ |
| static struct clinterval |
| { |
| unsigned int first; |
| unsigned int last; |
| unsigned int class; |
| } classes[] = |
| { |
| {0x037e, 0x037e, 1}, /* Greek question mark */ |
| {0x0387, 0x0387, 1}, /* Greek ano teleia */ |
| {0x055a, 0x055f, 1}, /* Armenian punctuation */ |
| {0x0589, 0x0589, 1}, /* Armenian full stop */ |
| {0x05be, 0x05be, 1}, |
| {0x05c0, 0x05c0, 1}, |
| {0x05c3, 0x05c3, 1}, |
| {0x05f3, 0x05f4, 1}, |
| {0x060c, 0x060c, 1}, |
| {0x061b, 0x061b, 1}, |
| {0x061f, 0x061f, 1}, |
| {0x066a, 0x066d, 1}, |
| {0x06d4, 0x06d4, 1}, |
| {0x0700, 0x070d, 1}, /* Syriac punctuation */ |
| {0x0964, 0x0965, 1}, |
| {0x0970, 0x0970, 1}, |
| {0x0df4, 0x0df4, 1}, |
| {0x0e4f, 0x0e4f, 1}, |
| {0x0e5a, 0x0e5b, 1}, |
| {0x0f04, 0x0f12, 1}, |
| {0x0f3a, 0x0f3d, 1}, |
| {0x0f85, 0x0f85, 1}, |
| {0x104a, 0x104f, 1}, /* Myanmar punctuation */ |
| {0x10fb, 0x10fb, 1}, /* Georgian punctuation */ |
| {0x1361, 0x1368, 1}, /* Ethiopic punctuation */ |
| {0x166d, 0x166e, 1}, /* Canadian Syl. punctuation */ |
| {0x1680, 0x1680, 0}, |
| {0x169b, 0x169c, 1}, |
| {0x16eb, 0x16ed, 1}, |
| {0x1735, 0x1736, 1}, |
| {0x17d4, 0x17dc, 1}, /* Khmer punctuation */ |
| {0x1800, 0x180a, 1}, /* Mongolian punctuation */ |
| {0x2000, 0x200b, 0}, /* spaces */ |
| {0x200c, 0x2027, 1}, /* punctuation and symbols */ |
| {0x2028, 0x2029, 0}, |
| {0x202a, 0x202e, 1}, /* punctuation and symbols */ |
| {0x202f, 0x202f, 0}, |
| {0x2030, 0x205e, 1}, /* punctuation and symbols */ |
| {0x205f, 0x205f, 0}, |
| {0x2060, 0x27ff, 1}, /* punctuation and symbols */ |
| {0x2070, 0x207f, 0x2070}, /* superscript */ |
| {0x2080, 0x2094, 0x2080}, /* subscript */ |
| {0x20a0, 0x27ff, 1}, /* all kinds of symbols */ |
| {0x2800, 0x28ff, 0x2800}, /* braille */ |
| {0x2900, 0x2998, 1}, /* arrows, brackets, etc. */ |
| {0x29d8, 0x29db, 1}, |
| {0x29fc, 0x29fd, 1}, |
| {0x2e00, 0x2e7f, 1}, /* supplemental punctuation */ |
| {0x3000, 0x3000, 0}, /* ideographic space */ |
| {0x3001, 0x3020, 1}, /* ideographic punctuation */ |
| {0x3030, 0x3030, 1}, |
| {0x303d, 0x303d, 1}, |
| {0x3040, 0x309f, 0x3040}, /* Hiragana */ |
| {0x30a0, 0x30ff, 0x30a0}, /* Katakana */ |
| {0x3300, 0x9fff, 0x4e00}, /* CJK Ideographs */ |
| {0xac00, 0xd7a3, 0xac00}, /* Hangul Syllables */ |
| {0xf900, 0xfaff, 0x4e00}, /* CJK Ideographs */ |
| {0xfd3e, 0xfd3f, 1}, |
| {0xfe30, 0xfe6b, 1}, /* punctuation forms */ |
| {0xff00, 0xff0f, 1}, /* half/fullwidth ASCII */ |
| {0xff1a, 0xff20, 1}, /* half/fullwidth ASCII */ |
| {0xff3b, 0xff40, 1}, /* half/fullwidth ASCII */ |
| {0xff5b, 0xff65, 1}, /* half/fullwidth ASCII */ |
| {0x20000, 0x2a6df, 0x4e00}, /* CJK Ideographs */ |
| {0x2a700, 0x2b73f, 0x4e00}, /* CJK Ideographs */ |
| {0x2b740, 0x2b81f, 0x4e00}, /* CJK Ideographs */ |
| {0x2f800, 0x2fa1f, 0x4e00}, /* CJK Ideographs */ |
| }; |
| |
| int bot = 0; |
| int top = sizeof(classes) / sizeof(struct clinterval) - 1; |
| int mid; |
| |
| /* First quick check for Latin1 characters, use 'iskeyword'. */ |
| if (c < 0x100) |
| { |
| if (c == ' ' || c == '\t' || c == NUL || c == 0xa0) |
| return 0; /* blank */ |
| if (vim_iswordc(c)) |
| return 2; /* word character */ |
| return 1; /* punctuation */ |
| } |
| |
| /* binary search in table */ |
| while (top >= bot) |
| { |
| mid = (bot + top) / 2; |
| if (classes[mid].last < (unsigned int)c) |
| bot = mid + 1; |
| else if (classes[mid].first > (unsigned int)c) |
| top = mid - 1; |
| else |
| return (int)classes[mid].class; |
| } |
| |
| /* emoji */ |
| if (intable(emoji_all, sizeof(emoji_all), c)) |
| return 3; |
| |
| /* most other characters are "word" characters */ |
| return 2; |
| } |
| |
| int |
| utf_ambiguous_width(int c) |
| { |
| return c >= 0x80 && (intable(ambiguous, sizeof(ambiguous), c) |
| || intable(emoji_all, sizeof(emoji_all), c)); |
| } |
| |
| /* |
| * Code for Unicode case-dependent operations. Based on notes in |
| * http://www.unicode.org/Public/UNIDATA/CaseFolding.txt |
| * This code uses simple case folding, not full case folding. |
| * Last updated for Unicode 5.2. |
| */ |
| |
| /* |
| * The following tables are built by ../runtime/tools/unicode.vim. |
| * They must be in numeric order, because we use binary search. |
| * An entry such as {0x41,0x5a,1,32} means that Unicode characters in the |
| * range from 0x41 to 0x5a inclusive, stepping by 1, are changed to |
| * folded/upper/lower by adding 32. |
| */ |
| typedef struct |
| { |
| int rangeStart; |
| int rangeEnd; |
| int step; |
| int offset; |
| } convertStruct; |
| |
| static convertStruct foldCase[] = |
| { |
| {0x41,0x5a,1,32}, |
| {0xb5,0xb5,-1,775}, |
| {0xc0,0xd6,1,32}, |
| {0xd8,0xde,1,32}, |
| {0x100,0x12e,2,1}, |
| {0x132,0x136,2,1}, |
| {0x139,0x147,2,1}, |
| {0x14a,0x176,2,1}, |
| {0x178,0x178,-1,-121}, |
| {0x179,0x17d,2,1}, |
| {0x17f,0x17f,-1,-268}, |
| {0x181,0x181,-1,210}, |
| {0x182,0x184,2,1}, |
| {0x186,0x186,-1,206}, |
| {0x187,0x187,-1,1}, |
| {0x189,0x18a,1,205}, |
| {0x18b,0x18b,-1,1}, |
| {0x18e,0x18e,-1,79}, |
| {0x18f,0x18f,-1,202}, |
| {0x190,0x190,-1,203}, |
| {0x191,0x191,-1,1}, |
| {0x193,0x193,-1,205}, |
| {0x194,0x194,-1,207}, |
| {0x196,0x196,-1,211}, |
| {0x197,0x197,-1,209}, |
| {0x198,0x198,-1,1}, |
| {0x19c,0x19c,-1,211}, |
| {0x19d,0x19d,-1,213}, |
| {0x19f,0x19f,-1,214}, |
| {0x1a0,0x1a4,2,1}, |
| {0x1a6,0x1a6,-1,218}, |
| {0x1a7,0x1a7,-1,1}, |
| {0x1a9,0x1a9,-1,218}, |
| {0x1ac,0x1ac,-1,1}, |
| {0x1ae,0x1ae,-1,218}, |
| {0x1af,0x1af,-1,1}, |
| {0x1b1,0x1b2,1,217}, |
| {0x1b3,0x1b5,2,1}, |
| {0x1b7,0x1b7,-1,219}, |
| {0x1b8,0x1bc,4,1}, |
| {0x1c4,0x1c4,-1,2}, |
| {0x1c5,0x1c5,-1,1}, |
| {0x1c7,0x1c7,-1,2}, |
| {0x1c8,0x1c8,-1,1}, |
| {0x1ca,0x1ca,-1,2}, |
| {0x1cb,0x1db,2,1}, |
| {0x1de,0x1ee,2,1}, |
| {0x1f1,0x1f1,-1,2}, |
| {0x1f2,0x1f4,2,1}, |
| {0x1f6,0x1f6,-1,-97}, |
| {0x1f7,0x1f7,-1,-56}, |
| {0x1f8,0x21e,2,1}, |
| {0x220,0x220,-1,-130}, |
| {0x222,0x232,2,1}, |
| {0x23a,0x23a,-1,10795}, |
| {0x23b,0x23b,-1,1}, |
| {0x23d,0x23d,-1,-163}, |
| {0x23e,0x23e,-1,10792}, |
| {0x241,0x241,-1,1}, |
| {0x243,0x243,-1,-195}, |
| {0x244,0x244,-1,69}, |
| {0x245,0x245,-1,71}, |
| {0x246,0x24e,2,1}, |
| {0x345,0x345,-1,116}, |
| {0x370,0x372,2,1}, |
| {0x376,0x376,-1,1}, |
| {0x37f,0x37f,-1,116}, |
| {0x386,0x386,-1,38}, |
| {0x388,0x38a,1,37}, |
| {0x38c,0x38c,-1,64}, |
| {0x38e,0x38f,1,63}, |
| {0x391,0x3a1,1,32}, |
| {0x3a3,0x3ab,1,32}, |
| {0x3c2,0x3c2,-1,1}, |
| {0x3cf,0x3cf,-1,8}, |
| {0x3d0,0x3d0,-1,-30}, |
| {0x3d1,0x3d1,-1,-25}, |
| {0x3d5,0x3d5,-1,-15}, |
| {0x3d6,0x3d6,-1,-22}, |
| {0x3d8,0x3ee,2,1}, |
| {0x3f0,0x3f0,-1,-54}, |
| {0x3f1,0x3f1,-1,-48}, |
| {0x3f4,0x3f4,-1,-60}, |
| {0x3f5,0x3f5,-1,-64}, |
| {0x3f7,0x3f7,-1,1}, |
| {0x3f9,0x3f9,-1,-7}, |
| {0x3fa,0x3fa,-1,1}, |
| {0x3fd,0x3ff,1,-130}, |
| {0x400,0x40f,1,80}, |
| {0x410,0x42f,1,32}, |
| {0x460,0x480,2,1}, |
| {0x48a,0x4be,2,1}, |
| {0x4c0,0x4c0,-1,15}, |
| {0x4c1,0x4cd,2,1}, |
| {0x4d0,0x52e,2,1}, |
| {0x531,0x556,1,48}, |
| {0x10a0,0x10c5,1,7264}, |
| {0x10c7,0x10cd,6,7264}, |
| {0x13f8,0x13fd,1,-8}, |
| {0x1c80,0x1c80,-1,-6222}, |
| {0x1c81,0x1c81,-1,-6221}, |
| {0x1c82,0x1c82,-1,-6212}, |
| {0x1c83,0x1c84,1,-6210}, |
| {0x1c85,0x1c85,-1,-6211}, |
| {0x1c86,0x1c86,-1,-6204}, |
| {0x1c87,0x1c87,-1,-6180}, |
| {0x1c88,0x1c88,-1,35267}, |
| {0x1e00,0x1e94,2,1}, |
| {0x1e9b,0x1e9b,-1,-58}, |
| {0x1e9e,0x1e9e,-1,-7615}, |
| {0x1ea0,0x1efe,2,1}, |
| {0x1f08,0x1f0f,1,-8}, |
| {0x1f18,0x1f1d,1,-8}, |
| {0x1f28,0x1f2f,1,-8}, |
| {0x1f38,0x1f3f,1,-8}, |
| {0x1f48,0x1f4d,1,-8}, |
| {0x1f59,0x1f5f,2,-8}, |
| {0x1f68,0x1f6f,1,-8}, |
| {0x1f88,0x1f8f,1,-8}, |
| {0x1f98,0x1f9f,1,-8}, |
| {0x1fa8,0x1faf,1,-8}, |
| {0x1fb8,0x1fb9,1,-8}, |
| {0x1fba,0x1fbb,1,-74}, |
| {0x1fbc,0x1fbc,-1,-9}, |
| {0x1fbe,0x1fbe,-1,-7173}, |
| {0x1fc8,0x1fcb,1,-86}, |
| {0x1fcc,0x1fcc,-1,-9}, |
| {0x1fd8,0x1fd9,1,-8}, |
| {0x1fda,0x1fdb,1,-100}, |
| {0x1fe8,0x1fe9,1,-8}, |
| {0x1fea,0x1feb,1,-112}, |
| {0x1fec,0x1fec,-1,-7}, |
| {0x1ff8,0x1ff9,1,-128}, |
| {0x1ffa,0x1ffb,1,-126}, |
| {0x1ffc,0x1ffc,-1,-9}, |
| {0x2126,0x2126,-1,-7517}, |
| {0x212a,0x212a,-1,-8383}, |
| {0x212b,0x212b,-1,-8262}, |
| {0x2132,0x2132,-1,28}, |
| {0x2160,0x216f,1,16}, |
| {0x2183,0x2183,-1,1}, |
| {0x24b6,0x24cf,1,26}, |
| {0x2c00,0x2c2e,1,48}, |
| {0x2c60,0x2c60,-1,1}, |
| {0x2c62,0x2c62,-1,-10743}, |
| {0x2c63,0x2c63,-1,-3814}, |
| {0x2c64,0x2c64,-1,-10727}, |
| {0x2c67,0x2c6b,2,1}, |
| {0x2c6d,0x2c6d,-1,-10780}, |
| {0x2c6e,0x2c6e,-1,-10749}, |
| {0x2c6f,0x2c6f,-1,-10783}, |
| {0x2c70,0x2c70,-1,-10782}, |
| {0x2c72,0x2c75,3,1}, |
| {0x2c7e,0x2c7f,1,-10815}, |
| {0x2c80,0x2ce2,2,1}, |
| {0x2ceb,0x2ced,2,1}, |
| {0x2cf2,0xa640,31054,1}, |
| {0xa642,0xa66c,2,1}, |
| {0xa680,0xa69a,2,1}, |
| {0xa722,0xa72e,2,1}, |
| {0xa732,0xa76e,2,1}, |
| {0xa779,0xa77b,2,1}, |
| {0xa77d,0xa77d,-1,-35332}, |
| {0xa77e,0xa786,2,1}, |
| {0xa78b,0xa78b,-1,1}, |
| {0xa78d,0xa78d,-1,-42280}, |
| {0xa790,0xa792,2,1}, |
| {0xa796,0xa7a8,2,1}, |
| {0xa7aa,0xa7aa,-1,-42308}, |
| {0xa7ab,0xa7ab,-1,-42319}, |
| {0xa7ac,0xa7ac,-1,-42315}, |
| {0xa7ad,0xa7ad,-1,-42305}, |
| {0xa7ae,0xa7ae,-1,-42308}, |
| {0xa7b0,0xa7b0,-1,-42258}, |
| {0xa7b1,0xa7b1,-1,-42282}, |
| {0xa7b2,0xa7b2,-1,-42261}, |
| {0xa7b3,0xa7b3,-1,928}, |
| {0xa7b4,0xa7b6,2,1}, |
| {0xab70,0xabbf,1,-38864}, |
| {0xff21,0xff3a,1,32}, |
| {0x10400,0x10427,1,40}, |
| {0x104b0,0x104d3,1,40}, |
| {0x10c80,0x10cb2,1,64}, |
| {0x118a0,0x118bf,1,32}, |
| {0x1e900,0x1e921,1,34} |
| }; |
| |
| static int utf_convert(int a, convertStruct table[], int tableSize); |
| static int utf_strnicmp(char_u *s1, char_u *s2, size_t n1, size_t n2); |
| |
| /* |
| * Generic conversion function for case operations. |
| * Return the converted equivalent of "a", which is a UCS-4 character. Use |
| * the given conversion "table". Uses binary search on "table". |
| */ |
| static int |
| utf_convert( |
| int a, |
| convertStruct table[], |
| int tableSize) |
| { |
| int start, mid, end; /* indices into table */ |
| int entries = tableSize / sizeof(convertStruct); |
| |
| start = 0; |
| end = entries; |
| while (start < end) |
| { |
| /* need to search further */ |
| mid = (end + start) / 2; |
| if (table[mid].rangeEnd < a) |
| start = mid + 1; |
| else |
| end = mid; |
| } |
| if (start < entries |
| && table[start].rangeStart <= a |
| && a <= table[start].rangeEnd |
| && (a - table[start].rangeStart) % table[start].step == 0) |
| return (a + table[start].offset); |
| else |
| return a; |
| } |
| |
| /* |
| * Return the folded-case equivalent of "a", which is a UCS-4 character. Uses |
| * simple case folding. |
| */ |
| int |
| utf_fold(int a) |
| { |
| if (a < 0x80) |
| /* be fast for ASCII */ |
| return a >= 0x41 && a <= 0x5a ? a + 32 : a; |
| return utf_convert(a, foldCase, (int)sizeof(foldCase)); |
| } |
| |
| static convertStruct toLower[] = |
| { |
| {0x41,0x5a,1,32}, |
| {0xc0,0xd6,1,32}, |
| {0xd8,0xde,1,32}, |
| {0x100,0x12e,2,1}, |
| {0x130,0x130,-1,-199}, |
| {0x132,0x136,2,1}, |
| {0x139,0x147,2,1}, |
| {0x14a,0x176,2,1}, |
| {0x178,0x178,-1,-121}, |
| {0x179,0x17d,2,1}, |
| {0x181,0x181,-1,210}, |
| {0x182,0x184,2,1}, |
| {0x186,0x186,-1,206}, |
| {0x187,0x187,-1,1}, |
| {0x189,0x18a,1,205}, |
| {0x18b,0x18b,-1,1}, |
| {0x18e,0x18e,-1,79}, |
| {0x18f,0x18f,-1,202}, |
| {0x190,0x190,-1,203}, |
| {0x191,0x191,-1,1}, |
| {0x193,0x193,-1,205}, |
| {0x194,0x194,-1,207}, |
| {0x196,0x196,-1,211}, |
| {0x197,0x197,-1,209}, |
| {0x198,0x198,-1,1}, |
| {0x19c,0x19c,-1,211}, |
| {0x19d,0x19d,-1,213}, |
| {0x19f,0x19f,-1,214}, |
| {0x1a0,0x1a4,2,1}, |
| {0x1a6,0x1a6,-1,218}, |
| {0x1a7,0x1a7,-1,1}, |
| {0x1a9,0x1a9,-1,218}, |
| {0x1ac,0x1ac,-1,1}, |
| {0x1ae,0x1ae,-1,218}, |
| {0x1af,0x1af,-1,1}, |
| {0x1b1,0x1b2,1,217}, |
| {0x1b3,0x1b5,2,1}, |
| {0x1b7,0x1b7,-1,219}, |
| {0x1b8,0x1bc,4,1}, |
| {0x1c4,0x1c4,-1,2}, |
| {0x1c5,0x1c5,-1,1}, |
| {0x1c7,0x1c7,-1,2}, |
| {0x1c8,0x1c8,-1,1}, |
| {0x1ca,0x1ca,-1,2}, |
| {0x1cb,0x1db,2,1}, |
| {0x1de,0x1ee,2,1}, |
| {0x1f1,0x1f1,-1,2}, |
| {0x1f2,0x1f4,2,1}, |
| {0x1f6,0x1f6,-1,-97}, |
| {0x1f7,0x1f7,-1,-56}, |
| {0x1f8,0x21e,2,1}, |
| {0x220,0x220,-1,-130}, |
| {0x222,0x232,2,1}, |
| {0x23a,0x23a,-1,10795}, |
| {0x23b,0x23b,-1,1}, |
| {0x23d,0x23d,-1,-163}, |
| {0x23e,0x23e,-1,10792}, |
| {0x241,0x241,-1,1}, |
| {0x243,0x243,-1,-195}, |
| {0x244,0x244,-1,69}, |
| {0x245,0x245,-1,71}, |
| {0x246,0x24e,2,1}, |
| {0x370,0x372,2,1}, |
| {0x376,0x376,-1,1}, |
| {0x37f,0x37f,-1,116}, |
| {0x386,0x386,-1,38}, |
| {0x388,0x38a,1,37}, |
| {0x38c,0x38c,-1,64}, |
| {0x38e,0x38f,1,63}, |
| {0x391,0x3a1,1,32}, |
| {0x3a3,0x3ab,1,32}, |
| {0x3cf,0x3cf,-1,8}, |
| {0x3d8,0x3ee,2,1}, |
| {0x3f4,0x3f4,-1,-60}, |
| {0x3f7,0x3f7,-1,1}, |
| {0x3f9,0x3f9,-1,-7}, |
| {0x3fa,0x3fa,-1,1}, |
| {0x3fd,0x3ff,1,-130}, |
| {0x400,0x40f,1,80}, |
| {0x410,0x42f,1,32}, |
| {0x460,0x480,2,1}, |
| {0x48a,0x4be,2,1}, |
| {0x4c0,0x4c0,-1,15}, |
| {0x4c1,0x4cd,2,1}, |
| {0x4d0,0x52e,2,1}, |
| {0x531,0x556,1,48}, |
| {0x10a0,0x10c5,1,7264}, |
| {0x10c7,0x10cd,6,7264}, |
| {0x13a0,0x13ef,1,38864}, |
| {0x13f0,0x13f5,1,8}, |
| {0x1e00,0x1e94,2,1}, |
| {0x1e9e,0x1e9e,-1,-7615}, |
| {0x1ea0,0x1efe,2,1}, |
| {0x1f08,0x1f0f,1,-8}, |
| {0x1f18,0x1f1d,1,-8}, |
| {0x1f28,0x1f2f,1,-8}, |
| {0x1f38,0x1f3f,1,-8}, |
| {0x1f48,0x1f4d,1,-8}, |
| {0x1f59,0x1f5f,2,-8}, |
| {0x1f68,0x1f6f,1,-8}, |
| {0x1f88,0x1f8f,1,-8}, |
| {0x1f98,0x1f9f,1,-8}, |
| {0x1fa8,0x1faf,1,-8}, |
| {0x1fb8,0x1fb9,1,-8}, |
| {0x1fba,0x1fbb,1,-74}, |
| {0x1fbc,0x1fbc,-1,-9}, |
| {0x1fc8,0x1fcb,1,-86}, |
| {0x1fcc,0x1fcc,-1,-9}, |
| {0x1fd8,0x1fd9,1,-8}, |
| {0x1fda,0x1fdb,1,-100}, |
| {0x1fe8,0x1fe9,1,-8}, |
| {0x1fea,0x1feb,1,-112}, |
| {0x1fec,0x1fec,-1,-7}, |
| {0x1ff8,0x1ff9,1,-128}, |
| {0x1ffa,0x1ffb,1,-126}, |
| {0x1ffc,0x1ffc,-1,-9}, |
| {0x2126,0x2126,-1,-7517}, |
| {0x212a,0x212a,-1,-8383}, |
| {0x212b,0x212b,-1,-8262}, |
| {0x2132,0x2132,-1,28}, |
| {0x2160,0x216f,1,16}, |
| {0x2183,0x2183,-1,1}, |
| {0x24b6,0x24cf,1,26}, |
| {0x2c00,0x2c2e,1,48}, |
| {0x2c60,0x2c60,-1,1}, |
| {0x2c62,0x2c62,-1,-10743}, |
| {0x2c63,0x2c63,-1,-3814}, |
| {0x2c64,0x2c64,-1,-10727}, |
| {0x2c67,0x2c6b,2,1}, |
| {0x2c6d,0x2c6d,-1,-10780}, |
| {0x2c6e,0x2c6e,-1,-10749}, |
| {0x2c6f,0x2c6f,-1,-10783}, |
| {0x2c70,0x2c70,-1,-10782}, |
| {0x2c72,0x2c75,3,1}, |
| {0x2c7e,0x2c7f,1,-10815}, |
| {0x2c80,0x2ce2,2,1}, |
| {0x2ceb,0x2ced,2,1}, |
| {0x2cf2,0xa640,31054,1}, |
| {0xa642,0xa66c,2,1}, |
| {0xa680,0xa69a,2,1}, |
| {0xa722,0xa72e,2,1}, |
| {0xa732,0xa76e,2,1}, |
| {0xa779,0xa77b,2,1}, |
| {0xa77d,0xa77d,-1,-35332}, |
| {0xa77e,0xa786,2,1}, |
| {0xa78b,0xa78b,-1,1}, |
| {0xa78d,0xa78d,-1,-42280}, |
| {0xa790,0xa792,2,1}, |
| {0xa796,0xa7a8,2,1}, |
| {0xa7aa,0xa7aa,-1,-42308}, |
| {0xa7ab,0xa7ab,-1,-42319}, |
| {0xa7ac,0xa7ac,-1,-42315}, |
| {0xa7ad,0xa7ad,-1,-42305}, |
| {0xa7ae,0xa7ae,-1,-42308}, |
| {0xa7b0,0xa7b0,-1,-42258}, |
| {0xa7b1,0xa7b1,-1,-42282}, |
| {0xa7b2,0xa7b2,-1,-42261}, |
| {0xa7b3,0xa7b3,-1,928}, |
| {0xa7b4,0xa7b6,2,1}, |
| {0xff21,0xff3a,1,32}, |
| {0x10400,0x10427,1,40}, |
| {0x104b0,0x104d3,1,40}, |
| {0x10c80,0x10cb2,1,64}, |
| {0x118a0,0x118bf,1,32}, |
| {0x1e900,0x1e921,1,34} |
| }; |
| |
| static convertStruct toUpper[] = |
| { |
| {0x61,0x7a,1,-32}, |
| {0xb5,0xb5,-1,743}, |
| {0xe0,0xf6,1,-32}, |
| {0xf8,0xfe,1,-32}, |
| {0xff,0xff,-1,121}, |
| {0x101,0x12f,2,-1}, |
| {0x131,0x131,-1,-232}, |
| {0x133,0x137,2,-1}, |
| {0x13a,0x148,2,-1}, |
| {0x14b,0x177,2,-1}, |
| {0x17a,0x17e,2,-1}, |
| {0x17f,0x17f,-1,-300}, |
| {0x180,0x180,-1,195}, |
| {0x183,0x185,2,-1}, |
| {0x188,0x18c,4,-1}, |
| {0x192,0x192,-1,-1}, |
| {0x195,0x195,-1,97}, |
| {0x199,0x199,-1,-1}, |
| {0x19a,0x19a,-1,163}, |
| {0x19e,0x19e,-1,130}, |
| {0x1a1,0x1a5,2,-1}, |
| {0x1a8,0x1ad,5,-1}, |
| {0x1b0,0x1b4,4,-1}, |
| {0x1b6,0x1b9,3,-1}, |
| {0x1bd,0x1bd,-1,-1}, |
| {0x1bf,0x1bf,-1,56}, |
| {0x1c5,0x1c5,-1,-1}, |
| {0x1c6,0x1c6,-1,-2}, |
| {0x1c8,0x1c8,-1,-1}, |
| {0x1c9,0x1c9,-1,-2}, |
| {0x1cb,0x1cb,-1,-1}, |
| {0x1cc,0x1cc,-1,-2}, |
| {0x1ce,0x1dc,2,-1}, |
| {0x1dd,0x1dd,-1,-79}, |
| {0x1df,0x1ef,2,-1}, |
| {0x1f2,0x1f2,-1,-1}, |
| {0x1f3,0x1f3,-1,-2}, |
| {0x1f5,0x1f9,4,-1}, |
| {0x1fb,0x21f,2,-1}, |
| {0x223,0x233,2,-1}, |
| {0x23c,0x23c,-1,-1}, |
| {0x23f,0x240,1,10815}, |
| {0x242,0x247,5,-1}, |
| {0x249,0x24f,2,-1}, |
| {0x250,0x250,-1,10783}, |
| {0x251,0x251,-1,10780}, |
| {0x252,0x252,-1,10782}, |
| {0x253,0x253,-1,-210}, |
| {0x254,0x254,-1,-206}, |
| {0x256,0x257,1,-205}, |
| {0x259,0x259,-1,-202}, |
| {0x25b,0x25b,-1,-203}, |
| {0x25c,0x25c,-1,42319}, |
| {0x260,0x260,-1,-205}, |
| {0x261,0x261,-1,42315}, |
| {0x263,0x263,-1,-207}, |
| {0x265,0x265,-1,42280}, |
| {0x266,0x266,-1,42308}, |
| {0x268,0x268,-1,-209}, |
| {0x269,0x269,-1,-211}, |
| {0x26a,0x26a,-1,42308}, |
| {0x26b,0x26b,-1,10743}, |
| {0x26c,0x26c,-1,42305}, |
| {0x26f,0x26f,-1,-211}, |
| {0x271,0x271,-1,10749}, |
| {0x272,0x272,-1,-213}, |
| {0x275,0x275,-1,-214}, |
| {0x27d,0x27d,-1,10727}, |
| {0x280,0x283,3,-218}, |
| {0x287,0x287,-1,42282}, |
| {0x288,0x288,-1,-218}, |
| {0x289,0x289,-1,-69}, |
| {0x28a,0x28b,1,-217}, |
| {0x28c,0x28c,-1,-71}, |
| {0x292,0x292,-1,-219}, |
| {0x29d,0x29d,-1,42261}, |
| {0x29e,0x29e,-1,42258}, |
| {0x345,0x345,-1,84}, |
| {0x371,0x373,2,-1}, |
| {0x377,0x377,-1,-1}, |
| {0x37b,0x37d,1,130}, |
| {0x3ac,0x3ac,-1,-38}, |
| {0x3ad,0x3af,1,-37}, |
| {0x3b1,0x3c1,1,-32}, |
| {0x3c2,0x3c2,-1,-31}, |
| {0x3c3,0x3cb,1,-32}, |
| {0x3cc,0x3cc,-1,-64}, |
| {0x3cd,0x3ce,1,-63}, |
| {0x3d0,0x3d0,-1,-62}, |
| {0x3d1,0x3d1,-1,-57}, |
| {0x3d5,0x3d5,-1,-47}, |
| {0x3d6,0x3d6,-1,-54}, |
| {0x3d7,0x3d7,-1,-8}, |
| {0x3d9,0x3ef,2,-1}, |
| {0x3f0,0x3f0,-1,-86}, |
| {0x3f1,0x3f1,-1,-80}, |
| {0x3f2,0x3f2,-1,7}, |
| {0x3f3,0x3f3,-1,-116}, |
| {0x3f5,0x3f5,-1,-96}, |
| {0x3f8,0x3fb,3,-1}, |
| {0x430,0x44f,1,-32}, |
| {0x450,0x45f,1,-80}, |
| {0x461,0x481,2,-1}, |
| {0x48b,0x4bf,2,-1}, |
| {0x4c2,0x4ce,2,-1}, |
| {0x4cf,0x4cf,-1,-15}, |
| {0x4d1,0x52f,2,-1}, |
| {0x561,0x586,1,-48}, |
| {0x13f8,0x13fd,1,-8}, |
| {0x1c80,0x1c80,-1,-6254}, |
| {0x1c81,0x1c81,-1,-6253}, |
| {0x1c82,0x1c82,-1,-6244}, |
| {0x1c83,0x1c84,1,-6242}, |
| {0x1c85,0x1c85,-1,-6243}, |
| {0x1c86,0x1c86,-1,-6236}, |
| {0x1c87,0x1c87,-1,-6181}, |
| {0x1c88,0x1c88,-1,35266}, |
| {0x1d79,0x1d79,-1,35332}, |
| {0x1d7d,0x1d7d,-1,3814}, |
| {0x1e01,0x1e95,2,-1}, |
| {0x1e9b,0x1e9b,-1,-59}, |
| {0x1ea1,0x1eff,2,-1}, |
| {0x1f00,0x1f07,1,8}, |
| {0x1f10,0x1f15,1,8}, |
| {0x1f20,0x1f27,1,8}, |
| {0x1f30,0x1f37,1,8}, |
| {0x1f40,0x1f45,1,8}, |
| {0x1f51,0x1f57,2,8}, |
| {0x1f60,0x1f67,1,8}, |
| {0x1f70,0x1f71,1,74}, |
| {0x1f72,0x1f75,1,86}, |
| {0x1f76,0x1f77,1,100}, |
| {0x1f78,0x1f79,1,128}, |
| {0x1f7a,0x1f7b,1,112}, |
| {0x1f7c,0x1f7d,1,126}, |
| {0x1f80,0x1f87,1,8}, |
| {0x1f90,0x1f97,1,8}, |
| {0x1fa0,0x1fa7,1,8}, |
| {0x1fb0,0x1fb1,1,8}, |
| {0x1fb3,0x1fb3,-1,9}, |
| {0x1fbe,0x1fbe,-1,-7205}, |
| {0x1fc3,0x1fc3,-1,9}, |
| {0x1fd0,0x1fd1,1,8}, |
| {0x1fe0,0x1fe1,1,8}, |
| {0x1fe5,0x1fe5,-1,7}, |
| {0x1ff3,0x1ff3,-1,9}, |
| {0x214e,0x214e,-1,-28}, |
| {0x2170,0x217f,1,-16}, |
| {0x2184,0x2184,-1,-1}, |
| {0x24d0,0x24e9,1,-26}, |
| {0x2c30,0x2c5e,1,-48}, |
| {0x2c61,0x2c61,-1,-1}, |
| {0x2c65,0x2c65,-1,-10795}, |
| {0x2c66,0x2c66,-1,-10792}, |
| {0x2c68,0x2c6c,2,-1}, |
| {0x2c73,0x2c76,3,-1}, |
| {0x2c81,0x2ce3,2,-1}, |
| {0x2cec,0x2cee,2,-1}, |
| {0x2cf3,0x2cf3,-1,-1}, |
| {0x2d00,0x2d25,1,-7264}, |
| {0x2d27,0x2d2d,6,-7264}, |
| {0xa641,0xa66d,2,-1}, |
| {0xa681,0xa69b,2,-1}, |
| {0xa723,0xa72f,2,-1}, |
| {0xa733,0xa76f,2,-1}, |
| {0xa77a,0xa77c,2,-1}, |
| {0xa77f,0xa787,2,-1}, |
| {0xa78c,0xa791,5,-1}, |
| {0xa793,0xa797,4,-1}, |
| {0xa799,0xa7a9,2,-1}, |
| {0xa7b5,0xa7b7,2,-1}, |
| {0xab53,0xab53,-1,-928}, |
| {0xab70,0xabbf,1,-38864}, |
| {0xff41,0xff5a,1,-32}, |
| {0x10428,0x1044f,1,-40}, |
| {0x104d8,0x104fb,1,-40}, |
| {0x10cc0,0x10cf2,1,-64}, |
| {0x118c0,0x118df,1,-32}, |
| {0x1e922,0x1e943,1,-34} |
| }; |
| |
| /* |
| * Return the upper-case equivalent of "a", which is a UCS-4 character. Use |
| * simple case folding. |
| */ |
| int |
| utf_toupper(int a) |
| { |
| /* If 'casemap' contains "keepascii" use ASCII style toupper(). */ |
| if (a < 128 && (cmp_flags & CMP_KEEPASCII)) |
| return TOUPPER_ASC(a); |
| |
| #if defined(HAVE_TOWUPPER) && defined(__STDC_ISO_10646__) |
| /* If towupper() is available and handles Unicode, use it. */ |
| if (!(cmp_flags & CMP_INTERNAL)) |
| return towupper(a); |
| #endif |
| |
| /* For characters below 128 use locale sensitive toupper(). */ |
| if (a < 128) |
| return TOUPPER_LOC(a); |
| |
| /* For any other characters use the above mapping table. */ |
| return utf_convert(a, toUpper, (int)sizeof(toUpper)); |
| } |
| |
| int |
| utf_islower(int a) |
| { |
| /* German sharp s is lower case but has no upper case equivalent. */ |
| return (utf_toupper(a) != a) || a == 0xdf; |
| } |
| |
| /* |
| * Return the lower-case equivalent of "a", which is a UCS-4 character. Use |
| * simple case folding. |
| */ |
| int |
| utf_tolower(int a) |
| { |
| /* If 'casemap' contains "keepascii" use ASCII style tolower(). */ |
| if (a < 128 && (cmp_flags & CMP_KEEPASCII)) |
| return TOLOWER_ASC(a); |
| |
| #if defined(HAVE_TOWLOWER) && defined(__STDC_ISO_10646__) |
| /* If towlower() is available and handles Unicode, use it. */ |
| if (!(cmp_flags & CMP_INTERNAL)) |
| return towlower(a); |
| #endif |
| |
| /* For characters below 128 use locale sensitive tolower(). */ |
| if (a < 128) |
| return TOLOWER_LOC(a); |
| |
| /* For any other characters use the above mapping table. */ |
| return utf_convert(a, toLower, (int)sizeof(toLower)); |
| } |
| |
| int |
| utf_isupper(int a) |
| { |
| return (utf_tolower(a) != a); |
| } |
| |
| static int |
| utf_strnicmp( |
| char_u *s1, |
| char_u *s2, |
| size_t n1, |
| size_t n2) |
| { |
| int c1, c2, cdiff; |
| char_u buffer[6]; |
| |
| for (;;) |
| { |
| c1 = utf_safe_read_char_adv(&s1, &n1); |
| c2 = utf_safe_read_char_adv(&s2, &n2); |
| |
| if (c1 <= 0 || c2 <= 0) |
| break; |
| |
| if (c1 == c2) |
| continue; |
| |
| cdiff = utf_fold(c1) - utf_fold(c2); |
| if (cdiff != 0) |
| return cdiff; |
| } |
| |
| /* some string ended or has an incomplete/illegal character sequence */ |
| |
| if (c1 == 0 || c2 == 0) |
| { |
| /* some string ended. shorter string is smaller */ |
| if (c1 == 0 && c2 == 0) |
| return 0; |
| return c1 == 0 ? -1 : 1; |
| } |
| |
| /* Continue with bytewise comparison to produce some result that |
| * would make comparison operations involving this function transitive. |
| * |
| * If only one string had an error, comparison should be made with |
| * folded version of the other string. In this case it is enough |
| * to fold just one character to determine the result of comparison. */ |
| |
| if (c1 != -1 && c2 == -1) |
| { |
| n1 = utf_char2bytes(utf_fold(c1), buffer); |
| s1 = buffer; |
| } |
| else if (c2 != -1 && c1 == -1) |
| { |
| n2 = utf_char2bytes(utf_fold(c2), buffer); |
| s2 = buffer; |
| } |
| |
| while (n1 > 0 && n2 > 0 && *s1 != NUL && *s2 != NUL) |
| { |
| cdiff = (int)(*s1) - (int)(*s2); |
| if (cdiff != 0) |
| return cdiff; |
| |
| s1++; |
| s2++; |
| n1--; |
| n2--; |
| } |
| |
| if (n1 > 0 && *s1 == NUL) |
| n1 = 0; |
| if (n2 > 0 && *s2 == NUL) |
| n2 = 0; |
| |
| if (n1 == 0 && n2 == 0) |
| return 0; |
| return n1 == 0 ? -1 : 1; |
| } |
| |
| /* |
| * Version of strnicmp() that handles multi-byte characters. |
| * Needed for Big5, Shift-JIS and UTF-8 encoding. Other DBCS encodings can |
| * probably use strnicmp(), because there are no ASCII characters in the |
| * second byte. |
| * Returns zero if s1 and s2 are equal (ignoring case), the difference between |
| * two characters otherwise. |
| */ |
| int |
| mb_strnicmp(char_u *s1, char_u *s2, size_t nn) |
| { |
| int i, l; |
| int cdiff; |
| int n = (int)nn; |
| |
| if (enc_utf8) |
| { |
| return utf_strnicmp(s1, s2, nn, nn); |
| } |
| else |
| { |
| for (i = 0; i < n; i += l) |
| { |
| if (s1[i] == NUL && s2[i] == NUL) /* both strings end */ |
| return 0; |
| |
| l = (*mb_ptr2len)(s1 + i); |
| if (l <= 1) |
| { |
| /* Single byte: first check normally, then with ignore case. */ |
| if (s1[i] != s2[i]) |
| { |
| cdiff = MB_TOLOWER(s1[i]) - MB_TOLOWER(s2[i]); |
| if (cdiff != 0) |
| return cdiff; |
| } |
| } |
| else |
| { |
| /* For non-Unicode multi-byte don't ignore case. */ |
| if (l > n - i) |
| l = n - i; |
| cdiff = STRNCMP(s1 + i, s2 + i, l); |
| if (cdiff != 0) |
| return cdiff; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| * "g8": show bytes of the UTF-8 char under the cursor. Doesn't matter what |
| * 'encoding' has been set to. |
| */ |
| void |
| show_utf8(void) |
| { |
| int len; |
| int rlen = 0; |
| char_u *line; |
| int clen; |
| int i; |
| |
| /* Get the byte length of the char under the cursor, including composing |
| * characters. */ |
| line = ml_get_cursor(); |
| len = utfc_ptr2len(line); |
| if (len == 0) |
| { |
| MSG("NUL"); |
| return; |
| } |
| |
| clen = 0; |
| for (i = 0; i < len; ++i) |
| { |
| if (clen == 0) |
| { |
| /* start of (composing) character, get its length */ |
| if (i > 0) |
| { |
| STRCPY(IObuff + rlen, "+ "); |
| rlen += 2; |
| } |
| clen = utf_ptr2len(line + i); |
| } |
| sprintf((char *)IObuff + rlen, "%02x ", |
| (line[i] == NL) ? NUL : line[i]); /* NUL is stored as NL */ |
| --clen; |
| rlen += (int)STRLEN(IObuff + rlen); |
| if (rlen > IOSIZE - 20) |
| break; |
| } |
| |
| msg(IObuff); |
| } |
| |
| /* |
| * mb_head_off() function pointer. |
| * Return offset from "p" to the first byte of the character it points into. |
| * If "p" points to the NUL at the end of the string return 0. |
| * Returns 0 when already at the first byte of a character. |
| */ |
| int |
| latin_head_off(char_u *base UNUSED, char_u *p UNUSED) |
| { |
| return 0; |
| } |
| |
| int |
| dbcs_head_off(char_u *base, char_u *p) |
| { |
| char_u *q; |
| |
| /* It can't be a trailing byte when not using DBCS, at the start of the |
| * string or the previous byte can't start a double-byte. */ |
| if (p <= base || MB_BYTE2LEN(p[-1]) == 1 || *p == NUL) |
| return 0; |
| |
| /* This is slow: need to start at the base and go forward until the |
| * byte we are looking for. Return 1 when we went past it, 0 otherwise. */ |
| q = base; |
| while (q < p) |
| q += dbcs_ptr2len(q); |
| return (q == p) ? 0 : 1; |
| } |
| |
| /* |
| * Special version of dbcs_head_off() that works for ScreenLines[], where |
| * single-width DBCS_JPNU characters are stored separately. |
| */ |
| int |
| dbcs_screen_head_off(char_u *base, char_u *p) |
| { |
| char_u *q; |
| |
| /* It can't be a trailing byte when not using DBCS, at the start of the |
| * string or the previous byte can't start a double-byte. |
| * For euc-jp an 0x8e byte in the previous cell always means we have a |
| * lead byte in the current cell. */ |
| if (p <= base |
| || (enc_dbcs == DBCS_JPNU && p[-1] == 0x8e) |
| || MB_BYTE2LEN(p[-1]) == 1 |
| || *p == NUL) |
| return 0; |
| |
| /* This is slow: need to start at the base and go forward until the |
| * byte we are looking for. Return 1 when we went past it, 0 otherwise. |
| * For DBCS_JPNU look out for 0x8e, which means the second byte is not |
| * stored as the next byte. */ |
| q = base; |
| while (q < p) |
| { |
| if (enc_dbcs == DBCS_JPNU && *q == 0x8e) |
| ++q; |
| else |
| q += dbcs_ptr2len(q); |
| } |
| return (q == p) ? 0 : 1; |
| } |
| |
| int |
| utf_head_off(char_u *base, char_u *p) |
| { |
| char_u *q; |
| char_u *s; |
| int c; |
| int len; |
| #ifdef FEAT_ARABIC |
| char_u *j; |
| #endif |
| |
| if (*p < 0x80) /* be quick for ASCII */ |
| return 0; |
| |
| /* Skip backwards over trailing bytes: 10xx.xxxx |
| * Skip backwards again if on a composing char. */ |
| for (q = p; ; --q) |
| { |
| /* Move s to the last byte of this char. */ |
| for (s = q; (s[1] & 0xc0) == 0x80; ++s) |
| ; |
| /* Move q to the first byte of this char. */ |
| while (q > base && (*q & 0xc0) == 0x80) |
| --q; |
| /* Check for illegal sequence. Do allow an illegal byte after where we |
| * started. */ |
| len = utf8len_tab[*q]; |
| if (len != (int)(s - q + 1) && len != (int)(p - q + 1)) |
| return 0; |
| |
| if (q <= base) |
| break; |
| |
| c = utf_ptr2char(q); |
| if (utf_iscomposing(c)) |
| continue; |
| |
| #ifdef FEAT_ARABIC |
| if (arabic_maycombine(c)) |
| { |
| /* Advance to get a sneak-peak at the next char */ |
| j = q; |
| --j; |
| /* Move j to the first byte of this char. */ |
| while (j > base && (*j & 0xc0) == 0x80) |
| --j; |
| if (arabic_combine(utf_ptr2char(j), c)) |
| continue; |
| } |
| #endif |
| break; |
| } |
| |
| return (int)(p - q); |
| } |
| |
| /* |
| * Copy a character from "*fp" to "*tp" and advance the pointers. |
| */ |
| void |
| mb_copy_char(char_u **fp, char_u **tp) |
| { |
| int l = (*mb_ptr2len)(*fp); |
| |
| mch_memmove(*tp, *fp, (size_t)l); |
| *tp += l; |
| *fp += l; |
| } |
| |
| /* |
| * Return the offset from "p" to the first byte of a character. When "p" is |
| * at the start of a character 0 is returned, otherwise the offset to the next |
| * character. Can start anywhere in a stream of bytes. |
| */ |
| int |
| mb_off_next(char_u *base, char_u *p) |
| { |
| int i; |
| int j; |
| |
| if (enc_utf8) |
| { |
| if (*p < 0x80) /* be quick for ASCII */ |
| return 0; |
| |
| /* Find the next character that isn't 10xx.xxxx */ |
| for (i = 0; (p[i] & 0xc0) == 0x80; ++i) |
| ; |
| if (i > 0) |
| { |
| /* Check for illegal sequence. */ |
| for (j = 0; p - j > base; ++j) |
| if ((p[-j] & 0xc0) != 0x80) |
| break; |
| if (utf8len_tab[p[-j]] != i + j) |
| return 0; |
| } |
| return i; |
| } |
| |
| /* Only need to check if we're on a trail byte, it doesn't matter if we |
| * want the offset to the next or current character. */ |
| return (*mb_head_off)(base, p); |
| } |
| |
| /* |
| * Return the offset from "p" to the last byte of the character it points |
| * into. Can start anywhere in a stream of bytes. |
| */ |
| int |
| mb_tail_off(char_u *base, char_u *p) |
| { |
| int i; |
| int j; |
| |
| if (*p == NUL) |
| return 0; |
| |
| if (enc_utf8) |
| { |
| /* Find the last character that is 10xx.xxxx */ |
| for (i = 0; (p[i + 1] & 0xc0) == 0x80; ++i) |
| ; |
| /* Check for illegal sequence. */ |
| for (j = 0; p - j > base; ++j) |
| if ((p[-j] & 0xc0) != 0x80) |
| break; |
| if (utf8len_tab[p[-j]] != i + j + 1) |
| return 0; |
| return i; |
| } |
| |
| /* It can't be the first byte if a double-byte when not using DBCS, at the |
| * end of the string or the byte can't start a double-byte. */ |
| if (enc_dbcs == 0 || p[1] == NUL || MB_BYTE2LEN(*p) == 1) |
| return 0; |
| |
| /* Return 1 when on the lead byte, 0 when on the tail byte. */ |
| return 1 - dbcs_head_off(base, p); |
| } |
| |
| /* |
| * Find the next illegal byte sequence. |
| */ |
| void |
| utf_find_illegal(void) |
| { |
| pos_T pos = curwin->w_cursor; |
| char_u *p; |
| int len; |
| vimconv_T vimconv; |
| char_u *tofree = NULL; |
| |
| vimconv.vc_type = CONV_NONE; |
| if (enc_utf8 && (enc_canon_props(curbuf->b_p_fenc) & ENC_8BIT)) |
| { |
| /* 'encoding' is "utf-8" but we are editing a 8-bit encoded file, |
| * possibly a utf-8 file with illegal bytes. Setup for conversion |
| * from utf-8 to 'fileencoding'. */ |
| convert_setup(&vimconv, p_enc, curbuf->b_p_fenc); |
| } |
| |
| #ifdef FEAT_VIRTUALEDIT |
| curwin->w_cursor.coladd = 0; |
| #endif |
| for (;;) |
| { |
| p = ml_get_cursor(); |
| if (vimconv.vc_type != CONV_NONE) |
| { |
| vim_free(tofree); |
| tofree = string_convert(&vimconv, p, NULL); |
| if (tofree == NULL) |
| break; |
| p = tofree; |
| } |
| |
| while (*p != NUL) |
| { |
| /* Illegal means that there are not enough trail bytes (checked by |
| * utf_ptr2len()) or too many of them (overlong sequence). */ |
| len = utf_ptr2len(p); |
| if (*p >= 0x80 && (len == 1 |
| || utf_char2len(utf_ptr2char(p)) != len)) |
| { |
| if (vimconv.vc_type == CONV_NONE) |
| curwin->w_cursor.col += (colnr_T)(p - ml_get_cursor()); |
| else |
| { |
| int l; |
| |
| len = (int)(p - tofree); |
| for (p = ml_get_cursor(); *p != NUL && len-- > 0; p += l) |
| { |
| l = utf_ptr2len(p); |
| curwin->w_cursor.col += l; |
| } |
| } |
| goto theend; |
| } |
| p += len; |
| } |
| if (curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count) |
| break; |
| ++curwin->w_cursor.lnum; |
| curwin->w_cursor.col = 0; |
| } |
| |
| /* didn't find it: don't move and beep */ |
| curwin->w_cursor = pos; |
| beep_flush(); |
| |
| theend: |
| vim_free(tofree); |
| convert_setup(&vimconv, NULL, NULL); |
| } |
| |
| #if defined(FEAT_GUI_GTK) || defined(PROTO) |
| /* |
| * Return TRUE if string "s" is a valid utf-8 string. |
| * When "end" is NULL stop at the first NUL. |
| * When "end" is positive stop there. |
| */ |
| int |
| utf_valid_string(char_u *s, char_u *end) |
| { |
| int l; |
| char_u *p = s; |
| |
| while (end == NULL ? *p != NUL : p < end) |
| { |
| l = utf8len_tab_zero[*p]; |
| if (l == 0) |
| return FALSE; /* invalid lead byte */ |
| if (end != NULL && p + l > end) |
| return FALSE; /* incomplete byte sequence */ |
| ++p; |
| while (--l > 0) |
| if ((*p++ & 0xc0) != 0x80) |
| return FALSE; /* invalid trail byte */ |
| } |
| return TRUE; |
| } |
| #endif |
| |
| #if defined(FEAT_GUI) || defined(PROTO) |
| /* |
| * Special version of mb_tail_off() for use in ScreenLines[]. |
| */ |
| int |
| dbcs_screen_tail_off(char_u *base, char_u *p) |
| { |
| /* It can't be the first byte if a double-byte when not using DBCS, at the |
| * end of the string or the byte can't start a double-byte. |
| * For euc-jp an 0x8e byte always means we have a lead byte in the current |
| * cell. */ |
| if (*p == NUL || p[1] == NUL |
| || (enc_dbcs == DBCS_JPNU && *p == 0x8e) |
| || MB_BYTE2LEN(*p) == 1) |
| return 0; |
| |
| /* Return 1 when on the lead byte, 0 when on the tail byte. */ |
| return 1 - dbcs_screen_head_off(base, p); |
| } |
| #endif |
| |
| /* |
| * If the cursor moves on an trail byte, set the cursor on the lead byte. |
| * Thus it moves left if necessary. |
| * Return TRUE when the cursor was adjusted. |
| */ |
| void |
| mb_adjust_cursor(void) |
| { |
| mb_adjustpos(curbuf, &curwin->w_cursor); |
| } |
| |
| /* |
| * Adjust position "*lp" to point to the first byte of a multi-byte character. |
| * If it points to a tail byte it's moved backwards to the head byte. |
| */ |
| void |
| mb_adjustpos(buf_T *buf, pos_T *lp) |
| { |
| char_u *p; |
| |
| if (lp->col > 0 |
| #ifdef FEAT_VIRTUALEDIT |
| || lp->coladd > 1 |
| #endif |
| ) |
| { |
| p = ml_get_buf(buf, lp->lnum, FALSE); |
| lp->col -= (*mb_head_off)(p, p + lp->col); |
| #ifdef FEAT_VIRTUALEDIT |
| /* Reset "coladd" when the cursor would be on the right half of a |
| * double-wide character. */ |
| if (lp->coladd == 1 |
| && p[lp->col] != TAB |
| && vim_isprintc((*mb_ptr2char)(p + lp->col)) |
| && ptr2cells(p + lp->col) > 1) |
| lp->coladd = 0; |
| #endif |
| } |
| } |
| |
| /* |
| * Return a pointer to the character before "*p", if there is one. |
| */ |
| char_u * |
| mb_prevptr( |
| char_u *line, /* start of the string */ |
| char_u *p) |
| { |
| if (p > line) |
| mb_ptr_back(line, p); |
| return p; |
| } |
| |
| /* |
| * Return the character length of "str". Each multi-byte character (with |
| * following composing characters) counts as one. |
| */ |
| int |
| mb_charlen(char_u *str) |
| { |
| char_u *p = str; |
| int count; |
| |
| if (p == NULL) |
| return 0; |
| |
| for (count = 0; *p != NUL; count++) |
| p += (*mb_ptr2len)(p); |
| |
| return count; |
| } |
| |
| #if defined(FEAT_SPELL) || defined(PROTO) |
| /* |
| * Like mb_charlen() but for a string with specified length. |
| */ |
| int |
| mb_charlen_len(char_u *str, int len) |
| { |
| char_u *p = str; |
| int count; |
| |
| for (count = 0; *p != NUL && p < str + len; count++) |
| p += (*mb_ptr2len)(p); |
| |
| return count; |
| } |
| #endif |
| |
| /* |
| * Try to un-escape a multi-byte character. |
| * Used for the "to" and "from" part of a mapping. |
| * Return the un-escaped string if it is a multi-byte character, and advance |
| * "pp" to just after the bytes that formed it. |
| * Return NULL if no multi-byte char was found. |
| */ |
| char_u * |
| mb_unescape(char_u **pp) |
| { |
| static char_u buf[6]; |
| int n; |
| int m = 0; |
| char_u *str = *pp; |
| |
| /* Must translate K_SPECIAL KS_SPECIAL KE_FILLER to K_SPECIAL and CSI |
| * KS_EXTRA KE_CSI to CSI. |
| * Maximum length of a utf-8 character is 4 bytes. */ |
| for (n = 0; str[n] != NUL && m < 4; ++n) |
| { |
| if (str[n] == K_SPECIAL |
| && str[n + 1] == KS_SPECIAL |
| && str[n + 2] == KE_FILLER) |
| { |
| buf[m++] = K_SPECIAL; |
| n += 2; |
| } |
| else if ((str[n] == K_SPECIAL |
| # ifdef FEAT_GUI |
| || str[n] == CSI |
| # endif |
| ) |
| && str[n + 1] == KS_EXTRA |
| && str[n + 2] == (int)KE_CSI) |
| { |
| buf[m++] = CSI; |
| n += 2; |
| } |
| else if (str[n] == K_SPECIAL |
| # ifdef FEAT_GUI |
| || str[n] == CSI |
| # endif |
| ) |
| break; /* a special key can't be a multibyte char */ |
| else |
| buf[m++] = str[n]; |
| buf[m] = NUL; |
| |
| /* Return a multi-byte character if it's found. An illegal sequence |
| * will result in a 1 here. */ |
| if ((*mb_ptr2len)(buf) > 1) |
| { |
| *pp = str + n + 1; |
| return buf; |
| } |
| |
| /* Bail out quickly for ASCII. */ |
| if (buf[0] < 128) |
| break; |
| } |
| return NULL; |
| } |
| |
| /* |
| * Return TRUE if the character at "row"/"col" on the screen is the left side |
| * of a double-width character. |
| * Caller must make sure "row" and "col" are not invalid! |
| */ |
| int |
| mb_lefthalve(int row, int col) |
| { |
| #ifdef FEAT_HANGULIN |
| if (composing_hangul) |
| return TRUE; |
| #endif |
| return (*mb_off2cells)(LineOffset[row] + col, |
| LineOffset[row] + screen_Columns) > 1; |
| } |
| |
| /* |
| * Correct a position on the screen, if it's the right half of a double-wide |
| * char move it to the left half. Returns the corrected column. |
| */ |
| int |
| mb_fix_col(int col, int row) |
| { |
| col = check_col(col); |
| row = check_row(row); |
| if (has_mbyte && ScreenLines != NULL && col > 0 |
| && ((enc_dbcs |
| && ScreenLines[LineOffset[row] + col] != NUL |
| && dbcs_screen_head_off(ScreenLines + LineOffset[row], |
| ScreenLines + LineOffset[row] + col)) |
| || (enc_utf8 && ScreenLines[LineOffset[row] + col] == 0))) |
| return col - 1; |
| return col; |
| } |
| #endif |
| |
| #if defined(FEAT_MBYTE) || defined(FEAT_POSTSCRIPT) || defined(PROTO) |
| static int enc_alias_search(char_u *name); |
| |
| /* |
| * Skip the Vim specific head of a 'encoding' name. |
| */ |
| char_u * |
| enc_skip(char_u *p) |
| { |
| if (STRNCMP(p, "2byte-", 6) == 0) |
| return p + 6; |
| if (STRNCMP(p, "8bit-", 5) == 0) |
| return p + 5; |
| return p; |
| } |
| |
| /* |
| * Find the canonical name for encoding "enc". |
| * When the name isn't recognized, returns "enc" itself, but with all lower |
| * case characters and '_' replaced with '-'. |
| * Returns an allocated string. NULL for out-of-memory. |
| */ |
| char_u * |
| enc_canonize(char_u *enc) |
| { |
| char_u *r; |
| char_u *p, *s; |
| int i; |
| |
| # ifdef FEAT_MBYTE |
| if (STRCMP(enc, "default") == 0) |
| { |
| /* Use the default encoding as it's found by set_init_1(). */ |
| r = get_encoding_default(); |
| if (r == NULL) |
| r = (char_u *)"latin1"; |
| return vim_strsave(r); |
| } |
| # endif |
| |
| /* copy "enc" to allocated memory, with room for two '-' */ |
| r = alloc((unsigned)(STRLEN(enc) + 3)); |
| if (r != NULL) |
| { |
| /* Make it all lower case and replace '_' with '-'. */ |
| p = r; |
| for (s = enc; *s != NUL; ++s) |
| { |
| if (*s == '_') |
| *p++ = '-'; |
| else |
| *p++ = TOLOWER_ASC(*s); |
| } |
| *p = NUL; |
| |
| /* Skip "2byte-" and "8bit-". */ |
| p = enc_skip(r); |
| |
| /* Change "microsoft-cp" to "cp". Used in some spell files. */ |
| if (STRNCMP(p, "microsoft-cp", 12) == 0) |
| STRMOVE(p, p + 10); |
| |
| /* "iso8859" -> "iso-8859" */ |
| if (STRNCMP(p, "iso8859", 7) == 0) |
| { |
| STRMOVE(p + 4, p + 3); |
| p[3] = '-'; |
| } |
| |
| /* "iso-8859n" -> "iso-8859-n" */ |
| if (STRNCMP(p, "iso-8859", 8) == 0 && p[8] != '-') |
| { |
| STRMOVE(p + 9, p + 8); |
| p[8] = '-'; |
| } |
| |
| /* "latin-N" -> "latinN" */ |
| if (STRNCMP(p, "latin-", 6) == 0) |
| STRMOVE(p + 5, p + 6); |
| |
| if (enc_canon_search(p) >= 0) |
| { |
| /* canonical name can be used unmodified */ |
| if (p != r) |
| STRMOVE(r, p); |
| } |
| else if ((i = enc_alias_search(p)) >= 0) |
| { |
| /* alias recognized, get canonical name */ |
| vim_free(r); |
| r = vim_strsave((char_u *)enc_canon_table[i].name); |
| } |
| } |
| return r; |
| } |
| |
| /* |
| * Search for an encoding alias of "name". |
| * Returns -1 when not found. |
| */ |
| static int |
| enc_alias_search(char_u *name) |
| { |
| int i; |
| |
| for (i = 0; enc_alias_table[i].name != NULL; ++i) |
| if (STRCMP(name, enc_alias_table[i].name) == 0) |
| return enc_alias_table[i].canon; |
| return -1; |
| } |
| #endif |
| |
| #if defined(FEAT_MBYTE) || defined(PROTO) |
| |
| #ifdef HAVE_LANGINFO_H |
| # include <langinfo.h> |
| #endif |
| |
| /* |
| * Get the canonicalized encoding of the current locale. |
| * Returns an allocated string when successful, NULL when not. |
| */ |
| char_u * |
| enc_locale(void) |
| { |
| #ifndef WIN3264 |
| char *s; |
| char *p; |
| int i; |
| #endif |
| char buf[50]; |
| #ifdef WIN3264 |
| long acp = GetACP(); |
| |
| if (acp == 1200) |
| STRCPY(buf, "ucs-2le"); |
| else if (acp == 1252) /* cp1252 is used as latin1 */ |
| STRCPY(buf, "latin1"); |
| else |
| sprintf(buf, "cp%ld", acp); |
| #else |
| # ifdef HAVE_NL_LANGINFO_CODESET |
| if ((s = nl_langinfo(CODESET)) == NULL || *s == NUL) |
| # endif |
| # if defined(HAVE_LOCALE_H) || defined(X_LOCALE) |
| if ((s = setlocale(LC_CTYPE, NULL)) == NULL || *s == NUL) |
| # endif |
| if ((s = getenv("LC_ALL")) == NULL || *s == NUL) |
| if ((s = getenv("LC_CTYPE")) == NULL || *s == NUL) |
| s = getenv("LANG"); |
| |
| if (s == NULL || *s == NUL) |
| return FAIL; |
| |
| /* The most generic locale format is: |
| * language[_territory][.codeset][@modifier][+special][,[sponsor][_revision]] |
| * If there is a '.' remove the part before it. |
| * if there is something after the codeset, remove it. |
| * Make the name lowercase and replace '_' with '-'. |
| * Exception: "ja_JP.EUC" == "euc-jp", "zh_CN.EUC" = "euc-cn", |
| * "ko_KR.EUC" == "euc-kr" |
| */ |
| if ((p = (char *)vim_strchr((char_u *)s, '.')) != NULL) |
| { |
| if (p > s + 2 && STRNICMP(p + 1, "EUC", 3) == 0 |
| && !isalnum((int)p[4]) && p[4] != '-' && p[-3] == '_') |
| { |
| /* copy "XY.EUC" to "euc-XY" to buf[10] */ |
| STRCPY(buf + 10, "euc-"); |
| buf[14] = p[-2]; |
| buf[15] = p[-1]; |
| buf[16] = 0; |
| s = buf + 10; |
| } |
| else |
| s = p + 1; |
| } |
| for (i = 0; i < (int)sizeof(buf) - 1 && s[i] != NUL; ++i) |
| { |
| if (s[i] == '_' || s[i] == '-') |
| buf[i] = '-'; |
| else if (isalnum((int)s[i])) |
| buf[i] = TOLOWER_ASC(s[i]); |
| else |
| break; |
| } |
| buf[i] = NUL; |
| #endif |
| |
| return enc_canonize((char_u *)buf); |
| } |
| |
| #if defined(WIN3264) || defined(PROTO) || defined(FEAT_CYGWIN_WIN32_CLIPBOARD) |
| /* |
| * Convert an encoding name to an MS-Windows codepage. |
| * Returns zero if no codepage can be figured out. |
| */ |
| int |
| encname2codepage(char_u *name) |
| { |
| int cp; |
| char_u *p = name; |
| int idx; |
| |
| if (STRNCMP(p, "8bit-", 5) == 0) |
| p += 5; |
| else if (STRNCMP(p_enc, "2byte-", 6) == 0) |
| p += 6; |
| |
| if (p[0] == 'c' && p[1] == 'p') |
| cp = atoi((char *)p + 2); |
| else if ((idx = enc_canon_search(p)) >= 0) |
| cp = enc_canon_table[idx].codepage; |
| else |
| return 0; |
| if (IsValidCodePage(cp)) |
| return cp; |
| return 0; |
| } |
| #endif |
| |
| # if defined(USE_ICONV) || defined(PROTO) |
| |
| static char_u *iconv_string(vimconv_T *vcp, char_u *str, int slen, int *unconvlenp, int *resultlenp); |
| |
| /* |
| * Call iconv_open() with a check if iconv() works properly (there are broken |
| * versions). |
| * Returns (void *)-1 if failed. |
| * (should return iconv_t, but that causes problems with prototypes). |
| */ |
| void * |
| my_iconv_open(char_u *to, char_u *from) |
| { |
| iconv_t fd; |
| #define ICONV_TESTLEN 400 |
| char_u tobuf[ICONV_TESTLEN]; |
| char *p; |
| size_t tolen; |
| static int iconv_ok = -1; |
| |
| if (iconv_ok == FALSE) |
| return (void *)-1; /* detected a broken iconv() previously */ |
| |
| #ifdef DYNAMIC_ICONV |
| /* Check if the iconv.dll can be found. */ |
| if (!iconv_enabled(TRUE)) |
| return (void *)-1; |
| #endif |
| |
| fd = iconv_open((char *)enc_skip(to), (char *)enc_skip(from)); |
| |
| if (fd != (iconv_t)-1 && iconv_ok == -1) |
| { |
| /* |
| * Do a dummy iconv() call to check if it actually works. There is a |
| * version of iconv() on Linux that is broken. We can't ignore it, |
| * because it's wide-spread. The symptoms are that after outputting |
| * the initial shift state the "to" pointer is NULL and conversion |
| * stops for no apparent reason after about 8160 characters. |
| */ |
| p = (char *)tobuf; |
| tolen = ICONV_TESTLEN; |
| (void)iconv(fd, NULL, NULL, &p, &tolen); |
| if (p == NULL) |
| { |
| iconv_ok = FALSE; |
| iconv_close(fd); |
| fd = (iconv_t)-1; |
| } |
| else |
| iconv_ok = TRUE; |
| } |
| |
| return (void *)fd; |
| } |
| |
| /* |
| * Convert the string "str[slen]" with iconv(). |
| * If "unconvlenp" is not NULL handle the string ending in an incomplete |
| * sequence and set "*unconvlenp" to the length of it. |
| * Returns the converted string in allocated memory. NULL for an error. |
| * If resultlenp is not NULL, sets it to the result length in bytes. |
| */ |
| static char_u * |
| iconv_string( |
| vimconv_T *vcp, |
| char_u *str, |
| int slen, |
| int *unconvlenp, |
| int *resultlenp) |
| { |
| const char *from; |
| size_t fromlen; |
| char *to; |
| size_t tolen; |
| size_t len = 0; |
| size_t done = 0; |
| char_u *result = NULL; |
| char_u *p; |
| int l; |
| |
| from = (char *)str; |
| fromlen = slen; |
| for (;;) |
| { |
| if (len == 0 || ICONV_ERRNO == ICONV_E2BIG) |
| { |
| /* Allocate enough room for most conversions. When re-allocating |
| * increase the buffer size. */ |
| len = len + fromlen * 2 + 40; |
| p = alloc((unsigned)len); |
| if (p != NULL && done > 0) |
| mch_memmove(p, result, done); |
| vim_free(result); |
| result = p; |
| if (result == NULL) /* out of memory */ |
| break; |
| } |
| |
| to = (char *)result + done; |
| tolen = len - done - 2; |
| /* Avoid a warning for systems with a wrong iconv() prototype by |
| * casting the second argument to void *. */ |
| if (iconv(vcp->vc_fd, (void *)&from, &fromlen, &to, &tolen) |
| != (size_t)-1) |
| { |
| /* Finished, append a NUL. */ |
| *to = NUL; |
| break; |
| } |
| |
| /* Check both ICONV_EINVAL and EINVAL, because the dynamically loaded |
| * iconv library may use one of them. */ |
| if (!vcp->vc_fail && unconvlenp != NULL |
| && (ICONV_ERRNO == ICONV_EINVAL || ICONV_ERRNO == EINVAL)) |
| { |
| /* Handle an incomplete sequence at the end. */ |
| *to = NUL; |
| *unconvlenp = (int)fromlen; |
| break; |
| } |
| |
| /* Check both ICONV_EILSEQ and EILSEQ, because the dynamically loaded |
| * iconv library may use one of them. */ |
| else if (!vcp->vc_fail |
| && (ICONV_ERRNO == ICONV_EILSEQ || ICONV_ERRNO == EILSEQ |
| || ICONV_ERRNO == ICONV_EINVAL || ICONV_ERRNO == EINVAL)) |
| { |
| /* Can't convert: insert a '?' and skip a character. This assumes |
| * conversion from 'encoding' to something else. In other |
| * situations we don't know what to skip anyway. */ |
| *to++ = '?'; |
| if ((*mb_ptr2cells)((char_u *)from) > 1) |
| *to++ = '?'; |
| if (enc_utf8) |
| l = utfc_ptr2len_len((char_u *)from, (int)fromlen); |
| else |
| { |
| l = (*mb_ptr2len)((char_u *)from); |
| if (l > (int)fromlen) |
| l = (int)fromlen; |
| } |
| from += l; |
| fromlen -= l; |
| } |
| else if (ICONV_ERRNO != ICONV_E2BIG) |
| { |
| /* conversion failed */ |
| vim_free(result); |
| result = NULL; |
| break; |
| } |
| /* Not enough room or skipping illegal sequence. */ |
| done = to - (char *)result; |
| } |
| |
| if (resultlenp != NULL && result != NULL) |
| *resultlenp = (int)(to - (char *)result); |
| return result; |
| } |
| |
| # if defined(DYNAMIC_ICONV) || defined(PROTO) |
| /* |
| * Dynamically load the "iconv.dll" on Win32. |
| */ |
| |
| # ifndef DYNAMIC_ICONV /* must be generating prototypes */ |
| # define HINSTANCE int |
| # endif |
| static HINSTANCE hIconvDLL = 0; |
| static HINSTANCE hMsvcrtDLL = 0; |
| |
| # ifndef DYNAMIC_ICONV_DLL |
| # define DYNAMIC_ICONV_DLL "iconv.dll" |
| # define DYNAMIC_ICONV_DLL_ALT1 "libiconv.dll" |
| # define DYNAMIC_ICONV_DLL_ALT2 "libiconv2.dll" |
| # define DYNAMIC_ICONV_DLL_ALT3 "libiconv-2.dll" |
| # endif |
| # ifndef DYNAMIC_MSVCRT_DLL |
| # define DYNAMIC_MSVCRT_DLL "msvcrt.dll" |
| # endif |
| |
| /* |
| * Get the address of 'funcname' which is imported by 'hInst' DLL. |
| */ |
| static void * |
| get_iconv_import_func(HINSTANCE hInst, const char *funcname) |
| { |
| PBYTE pImage = (PBYTE)hInst; |
| PIMAGE_DOS_HEADER pDOS = (PIMAGE_DOS_HEADER)hInst; |
| PIMAGE_NT_HEADERS pPE; |
| PIMAGE_IMPORT_DESCRIPTOR pImpDesc; |
| PIMAGE_THUNK_DATA pIAT; /* Import Address Table */ |
| PIMAGE_THUNK_DATA pINT; /* Import Name Table */ |
| PIMAGE_IMPORT_BY_NAME pImpName; |
| |
| if (pDOS->e_magic != IMAGE_DOS_SIGNATURE) |
| return NULL; |
| pPE = (PIMAGE_NT_HEADERS)(pImage + pDOS->e_lfanew); |
| if (pPE->Signature != IMAGE_NT_SIGNATURE) |
| return NULL; |
| pImpDesc = (PIMAGE_IMPORT_DESCRIPTOR)(pImage |
| + pPE->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT] |
| .VirtualAddress); |
| for (; pImpDesc->FirstThunk; ++pImpDesc) |
| { |
| if (!pImpDesc->OriginalFirstThunk) |
| continue; |
| pIAT = (PIMAGE_THUNK_DATA)(pImage + pImpDesc->FirstThunk); |
| pINT = (PIMAGE_THUNK_DATA)(pImage + pImpDesc->OriginalFirstThunk); |
| for (; pIAT->u1.Function; ++pIAT, ++pINT) |
| { |
| if (IMAGE_SNAP_BY_ORDINAL(pINT->u1.Ordinal)) |
| continue; |
| pImpName = (PIMAGE_IMPORT_BY_NAME)(pImage |
| + (UINT_PTR)(pINT->u1.AddressOfData)); |
| if (strcmp((char *)pImpName->Name, funcname) == 0) |
| return (void *)pIAT->u1.Function; |
| } |
| } |
| return NULL; |
| } |
| |
| /* |
| * Try opening the iconv.dll and return TRUE if iconv() can be used. |
| */ |
| int |
| iconv_enabled(int verbose) |
| { |
| if (hIconvDLL != 0 && hMsvcrtDLL != 0) |
| return TRUE; |
| |
| /* The iconv DLL file goes under different names, try them all. |
| * Do the "2" version first, it's newer. */ |
| #ifdef DYNAMIC_ICONV_DLL_ALT2 |
| if (hIconvDLL == 0) |
| hIconvDLL = vimLoadLib(DYNAMIC_ICONV_DLL_ALT2); |
| #endif |
| #ifdef DYNAMIC_ICONV_DLL_ALT3 |
| if (hIconvDLL == 0) |
| hIconvDLL = vimLoadLib(DYNAMIC_ICONV_DLL_ALT3); |
| #endif |
| if (hIconvDLL == 0) |
| hIconvDLL = vimLoadLib(DYNAMIC_ICONV_DLL); |
| #ifdef DYNAMIC_ICONV_DLL_ALT1 |
| if (hIconvDLL == 0) |
| hIconvDLL = vimLoadLib(DYNAMIC_ICONV_DLL_ALT1); |
| #endif |
| |
| if (hIconvDLL != 0) |
| hMsvcrtDLL = vimLoadLib(DYNAMIC_MSVCRT_DLL); |
| if (hIconvDLL == 0 || hMsvcrtDLL == 0) |
| { |
| /* Only give the message when 'verbose' is set, otherwise it might be |
| * done whenever a conversion is attempted. */ |
| if (verbose && p_verbose > 0) |
| { |
| verbose_enter(); |
| EMSG2(_(e_loadlib), |
| hIconvDLL == 0 ? DYNAMIC_ICONV_DLL : DYNAMIC_MSVCRT_DLL); |
| verbose_leave(); |
| } |
| iconv_end(); |
| return FALSE; |
| } |
| |
| iconv = (void *)GetProcAddress(hIconvDLL, "libiconv"); |
| iconv_open = (void *)GetProcAddress(hIconvDLL, "libiconv_open"); |
| iconv_close = (void *)GetProcAddress(hIconvDLL, "libiconv_close"); |
| iconvctl = (void *)GetProcAddress(hIconvDLL, "libiconvctl"); |
| iconv_errno = get_iconv_import_func(hIconvDLL, "_errno"); |
| if (iconv_errno == NULL) |
| iconv_errno = (void *)GetProcAddress(hMsvcrtDLL, "_errno"); |
| if (iconv == NULL || iconv_open == NULL || iconv_close == NULL |
| || iconvctl == NULL || iconv_errno == NULL) |
| { |
| iconv_end(); |
| if (verbose && p_verbose > 0) |
| { |
| verbose_enter(); |
| EMSG2(_(e_loadfunc), "for libiconv"); |
| verbose_leave(); |
| } |
| return FALSE; |
| } |
| return TRUE; |
| } |
| |
| void |
| iconv_end(void) |
| { |
| /* Don't use iconv() when inputting or outputting characters. */ |
| if (input_conv.vc_type == CONV_ICONV) |
| convert_setup(&input_conv, NULL, NULL); |
| if (output_conv.vc_type == CONV_ICONV) |
| convert_setup(&output_conv, NULL, NULL); |
| |
| if (hIconvDLL != 0) |
| FreeLibrary(hIconvDLL); |
| if (hMsvcrtDLL != 0) |
| FreeLibrary(hMsvcrtDLL); |
| hIconvDLL = 0; |
| hMsvcrtDLL = 0; |
| } |
| # endif /* DYNAMIC_ICONV */ |
| # endif /* USE_ICONV */ |
| |
| #endif /* FEAT_MBYTE */ |
| |
| #if defined(FEAT_XIM) || defined(PROTO) |
| |
| # if defined(FEAT_GUI_GTK) || defined(PROTO) |
| static int xim_has_preediting INIT(= FALSE); /* IM current status */ |
| |
| /* |
| * Set preedit_start_col to the current cursor position. |
| */ |
| static void |
| init_preedit_start_col(void) |
| { |
| if (State & CMDLINE) |
| preedit_start_col = cmdline_getvcol_cursor(); |
| else if (curwin != NULL && curwin->w_buffer != NULL) |
| getvcol(curwin, &curwin->w_cursor, &preedit_start_col, NULL, NULL); |
| /* Prevent that preediting marks the buffer as changed. */ |
| xim_changed_while_preediting = curbuf->b_changed; |
| } |
| |
| static int im_is_active = FALSE; /* IM is enabled for current mode */ |
| static int preedit_is_active = FALSE; |
| static int im_preedit_cursor = 0; /* cursor offset in characters */ |
| static int im_preedit_trailing = 0; /* number of characters after cursor */ |
| |
| static unsigned long im_commit_handler_id = 0; |
| static unsigned int im_activatekey_keyval = GDK_VoidSymbol; |
| static unsigned int im_activatekey_state = 0; |
| |
| void |
| im_set_active(int active) |
| { |
| int was_active; |
| |
| was_active = !!im_get_status(); |
| im_is_active = (active && !p_imdisable); |
| |
| if (im_is_active != was_active) |
| xim_reset(); |
| } |
| |
| void |
| xim_set_focus(int focus) |
| { |
| if (xic != NULL) |
| { |
| if (focus) |
| gtk_im_context_focus_in(xic); |
| else |
| gtk_im_context_focus_out(xic); |
| } |
| } |
| |
| void |
| im_set_position(int row, int col) |
| { |
| if (xic != NULL) |
| { |
| GdkRectangle area; |
| |
| area.x = FILL_X(col); |
| area.y = FILL_Y(row); |
| area.width = gui.char_width * (mb_lefthalve(row, col) ? 2 : 1); |
| area.height = gui.char_height; |
| |
| gtk_im_context_set_cursor_location(xic, &area); |
| } |
| } |
| |
| # if 0 || defined(PROTO) /* apparently only used in gui_x11.c */ |
| void |
| xim_set_preedit(void) |
| { |
| im_set_position(gui.row, gui.col); |
| } |
| # endif |
| |
| static void |
| im_add_to_input(char_u *str, int len) |
| { |
| /* Convert from 'termencoding' (always "utf-8") to 'encoding' */ |
| if (input_conv.vc_type != CONV_NONE) |
| { |
| str = string_convert(&input_conv, str, &len); |
| g_return_if_fail(str != NULL); |
| } |
| |
| add_to_input_buf_csi(str, len); |
| |
| if (input_conv.vc_type != CONV_NONE) |
| vim_free(str); |
| |
| if (p_mh) /* blank out the pointer if necessary */ |
| gui_mch_mousehide(TRUE); |
| } |
| |
| static void |
| im_delete_preedit(void) |
| { |
| char_u bskey[] = {CSI, 'k', 'b'}; |
| char_u delkey[] = {CSI, 'k', 'D'}; |
| |
| if (State & NORMAL) |
| { |
| im_preedit_cursor = 0; |
| return; |
| } |
| for (; im_preedit_cursor > 0; --im_preedit_cursor) |
| add_to_input_buf(bskey, (int)sizeof(bskey)); |
| |
| for (; im_preedit_trailing > 0; --im_preedit_trailing) |
| add_to_input_buf(delkey, (int)sizeof(delkey)); |
| } |
| |
| /* |
| * Move the cursor left by "num_move_back" characters. |
| * Note that ins_left() checks im_is_preediting() to avoid breaking undo for |
| * these K_LEFT keys. |
| */ |
| static void |
| im_correct_cursor(int num_move_back) |
| { |
| char_u backkey[] = {CSI, 'k', 'l'}; |
| |
| if (State & NORMAL) |
| return; |
| # ifdef FEAT_RIGHTLEFT |
| if ((State & CMDLINE) == 0 && curwin != NULL && curwin->w_p_rl) |
| backkey[2] = 'r'; |
| # endif |
| for (; num_move_back > 0; --num_move_back) |
| add_to_input_buf(backkey, (int)sizeof(backkey)); |
| } |
| |
| static int xim_expected_char = NUL; |
| static int xim_ignored_char = FALSE; |
| |
| /* |
| * Update the mode and cursor while in an IM callback. |
| */ |
| static void |
| im_show_info(void) |
| { |
| int old_vgetc_busy; |
| |
| old_vgetc_busy = vgetc_busy; |
| vgetc_busy = TRUE; |
| showmode(); |
| vgetc_busy = old_vgetc_busy; |
| if ((State & NORMAL) || (State & INSERT)) |
| setcursor(); |
| out_flush(); |
| } |
| |
| /* |
| * Callback invoked when the user finished preediting. |
| * Put the final string into the input buffer. |
| */ |
| static void |
| im_commit_cb(GtkIMContext *context UNUSED, |
| const gchar *str, |
| gpointer data UNUSED) |
| { |
| int slen = (int)STRLEN(str); |
| int add_to_input = TRUE; |
| int clen; |
| int len = slen; |
| int commit_with_preedit = TRUE; |
| char_u *im_str; |
| |
| #ifdef XIM_DEBUG |
| xim_log("im_commit_cb(): %s\n", str); |
| #endif |
| |
| /* The imhangul module doesn't reset the preedit string before |
| * committing. Call im_delete_preedit() to work around that. */ |
| im_delete_preedit(); |
| |
| /* Indicate that preediting has finished. */ |
| if (preedit_start_col == MAXCOL) |
| { |
| init_preedit_start_col(); |
| commit_with_preedit = FALSE; |
| } |
| |
| /* The thing which setting "preedit_start_col" to MAXCOL means that |
| * "preedit_start_col" will be set forcedly when calling |
| * preedit_changed_cb() next time. |
| * "preedit_start_col" should not reset with MAXCOL on this part. Vim |
| * is simulating the preediting by using add_to_input_str(). when |
| * preedit begin immediately before committed, the typebuf is not |
| * flushed to screen, then it can't get correct "preedit_start_col". |
| * Thus, it should calculate the cells by adding cells of the committed |
| * string. */ |
| if (input_conv.vc_type != CONV_NONE) |
| { |
| im_str = string_convert(&input_conv, (char_u *)str, &len); |
| g_return_if_fail(im_str != NULL); |
| } |
| else |
| im_str = (char_u *)str; |
| |
| clen = mb_string2cells(im_str, len); |
| |
| if (input_conv.vc_type != CONV_NONE) |
| vim_free(im_str); |
| preedit_start_col += clen; |
| |
| /* Is this a single character that matches a keypad key that's just |
| * been pressed? If so, we don't want it to be entered as such - let |
| * us carry on processing the raw keycode so that it may be used in |
| * mappings as <kSomething>. */ |
| if (xim_expected_char != NUL) |
| { |
| /* We're currently processing a keypad or other special key */ |
| if (slen == 1 && str[0] == xim_expected_char) |
| { |
| /* It's a match - don't do it here */ |
| xim_ignored_char = TRUE; |
| add_to_input = FALSE; |
| } |
| else |
| { |
| /* Not a match */ |
| xim_ignored_char = FALSE; |
| } |
| } |
| |
| if (add_to_input) |
| im_add_to_input((char_u *)str, slen); |
| |
| /* Inserting chars while "im_is_active" is set does not cause a change of |
| * buffer. When the chars are committed the buffer must be marked as |
| * changed. */ |
| if (!commit_with_preedit) |
| preedit_start_col = MAXCOL; |
| |
| /* This flag is used in changed() at next call. */ |
| xim_changed_while_preediting = TRUE; |
| |
| if (gtk_main_level() > 0) |
| gtk_main_quit(); |
| } |
| |
| /* |
| * Callback invoked after start to the preedit. |
| */ |
| static void |
| im_preedit_start_cb(GtkIMContext *context UNUSED, gpointer data UNUSED) |
| { |
| #ifdef XIM_DEBUG |
| xim_log("im_preedit_start_cb()\n"); |
| #endif |
| |
| im_is_active = TRUE; |
| preedit_is_active = TRUE; |
| gui_update_cursor(TRUE, FALSE); |
| im_show_info(); |
| } |
| |
| /* |
| * Callback invoked after end to the preedit. |
| */ |
| static void |
| im_preedit_end_cb(GtkIMContext *context UNUSED, gpointer data UNUSED) |
| { |
| #ifdef XIM_DEBUG |
| xim_log("im_preedit_end_cb()\n"); |
| #endif |
| im_delete_preedit(); |
| |
| /* Indicate that preediting has finished */ |
| preedit_start_col = MAXCOL; |
| xim_has_preediting = FALSE; |
| |
| #if 0 |
| /* Removal of this line suggested by Takuhiro Nishioka. Fixes that IM was |
| * switched off unintentionally. We now use preedit_is_active (added by |
| * SungHyun Nam). */ |
| im_is_active = FALSE; |
| #endif |
| preedit_is_active = FALSE; |
| gui_update_cursor(TRUE, FALSE); |
| im_show_info(); |
| } |
| |
| /* |
| * Callback invoked after changes to the preedit string. If the preedit |
| * string was empty before, remember the preedit start column so we know |
| * where to apply feedback attributes. Delete the previous preedit string |
| * if there was one, save the new preedit cursor offset, and put the new |
| * string into the input buffer. |
| * |
| * TODO: The pragmatic "put into input buffer" approach used here has |
| * several fundamental problems: |
| * |
| * - The characters in the preedit string are subject to remapping. |
| * That's broken, only the finally committed string should be remapped. |
| * |
| * - There is a race condition involved: The retrieved value for the |
| * current cursor position will be wrong if any unprocessed characters |
| * are still queued in the input buffer. |
| * |
| * - Due to the lack of synchronization between the file buffer in memory |
| * and any typed characters, it's practically impossible to implement the |
| * "retrieve_surrounding" and "delete_surrounding" signals reliably. IM |
| * modules for languages such as Thai are likely to rely on this feature |
| * for proper operation. |
| * |
| * Conclusions: I think support for preediting needs to be moved to the |
| * core parts of Vim. Ideally, until it has been committed, the preediting |
| * string should only be displayed and not affect the buffer content at all. |
| * The question how to deal with the synchronization issue still remains. |
| * Circumventing the input buffer is probably not desirable. Anyway, I think |
| * implementing "retrieve_surrounding" is the only hard problem. |
| * |
| * One way to solve all of this in a clean manner would be to queue all key |
| * press/release events "as is" in the input buffer, and apply the IM filtering |
| * at the receiving end of the queue. This, however, would have a rather large |
| * impact on the code base. If there is an easy way to force processing of all |
| * remaining input from within the "retrieve_surrounding" signal handler, this |
| * might not be necessary. Gotta ask on vim-dev for opinions. |
| */ |
| static void |
| im_preedit_changed_cb(GtkIMContext *context, gpointer data UNUSED) |
| { |
| char *preedit_string = NULL; |
| int cursor_index = 0; |
| int num_move_back = 0; |
| char_u *str; |
| char_u *p; |
| int i; |
| |
| gtk_im_context_get_preedit_string(context, |
| &preedit_string, NULL, |
| &cursor_index); |
| |
| #ifdef XIM_DEBUG |
| xim_log("im_preedit_changed_cb(): %s\n", preedit_string); |
| #endif |
| |
| g_return_if_fail(preedit_string != NULL); /* just in case */ |
| |
| /* If preedit_start_col is MAXCOL set it to the current cursor position. */ |
| if (preedit_start_col == MAXCOL && preedit_string[0] != '\0') |
| { |
| xim_has_preediting = TRUE; |
| |
| /* Urgh, this breaks if the input buffer isn't empty now */ |
| init_preedit_start_col(); |
| } |
| else if (cursor_index == 0 && preedit_string[0] == '\0') |
| { |
| xim_has_preediting = FALSE; |
| |
| /* If at the start position (after typing backspace) |
| * preedit_start_col must be reset. */ |
| preedit_start_col = MAXCOL; |
| } |
| |
| im_delete_preedit(); |
| |
| /* |
| * Compute the end of the preediting area: "preedit_end_col". |
| * According to the documentation of gtk_im_context_get_preedit_string(), |
| * the cursor_pos output argument returns the offset in bytes. This is |
| * unfortunately not true -- real life shows the offset is in characters, |
| * and the GTK+ source code agrees with me. Will file a bug later. |
| */ |
| if (preedit_start_col != MAXCOL) |
| preedit_end_col = preedit_start_col; |
| str = (char_u *)preedit_string; |
| for (p = str, i = 0; *p != NUL; p += utf_byte2len(*p), ++i) |
| { |
| int is_composing; |
| |
| is_composing = ((*p & 0x80) != 0 && utf_iscomposing(utf_ptr2char(p))); |
| /* |
| * These offsets are used as counters when generating <BS> and <Del> |
| * to delete the preedit string. So don't count composing characters |
| * unless 'delcombine' is enabled. |
| */ |
| if (!is_composing || p_deco) |
| { |
| if (i < cursor_index) |
| ++im_preedit_cursor; |
| else |
| ++im_preedit_trailing; |
| } |
| if (!is_composing && i >= cursor_index) |
| { |
| /* This is essentially the same as im_preedit_trailing, except |
| * composing characters are not counted even if p_deco is set. */ |
| ++num_move_back; |
| } |
| if (preedit_start_col != MAXCOL) |
| preedit_end_col += utf_ptr2cells(p); |
| } |
| |
| if (p > str) |
| { |
| im_add_to_input(str, (int)(p - str)); |
| im_correct_cursor(num_move_back); |
| } |
| |
| g_free(preedit_string); |
| |
| if (gtk_main_level() > 0) |
| gtk_main_quit(); |
| } |
| |
| /* |
| * Translate the Pango attributes at iter to Vim highlighting attributes. |
| * Ignore attributes not supported by Vim highlighting. This shouldn't have |
| * too much impact -- right now we handle even more attributes than necessary |
| * for the IM modules I tested with. |
| */ |
| static int |
| translate_pango_attributes(PangoAttrIterator *iter) |
| { |
| PangoAttribute *attr; |
| int char_attr = HL_NORMAL; |
| |
| attr = pango_attr_iterator_get(iter, PANGO_ATTR_UNDERLINE); |
| if (attr != NULL && ((PangoAttrInt *)attr)->value |
| != (int)PANGO_UNDERLINE_NONE) |
| char_attr |= HL_UNDERLINE; |
| |
| attr = pango_attr_iterator_get(iter, PANGO_ATTR_WEIGHT); |
| if (attr != NULL && ((PangoAttrInt *)attr)->value >= (int)PANGO_WEIGHT_BOLD) |
| char_attr |= HL_BOLD; |
| |
| attr = pango_attr_iterator_get(iter, PANGO_ATTR_STYLE); |
| if (attr != NULL && ((PangoAttrInt *)attr)->value |
| != (int)PANGO_STYLE_NORMAL) |
| char_attr |= HL_ITALIC; |
| |
| attr = pango_attr_iterator_get(iter, PANGO_ATTR_BACKGROUND); |
| if (attr != NULL) |
| { |
| const PangoColor *color = &((PangoAttrColor *)attr)->color; |
| |
| /* Assume inverse if black background is requested */ |
| if ((color->red | color->green | color->blue) == 0) |
| char_attr |= HL_INVERSE; |
| } |
| |
| return char_attr; |
| } |
| |
| /* |
| * Retrieve the highlighting attributes at column col in the preedit string. |
| * Return -1 if not in preediting mode or if col is out of range. |
| */ |
| int |
| im_get_feedback_attr(int col) |
| { |
| char *preedit_string = NULL; |
| PangoAttrList *attr_list = NULL; |
| int char_attr = -1; |
| |
| if (xic == NULL) |
| return char_attr; |
| |
| gtk_im_context_get_preedit_string(xic, &preedit_string, &attr_list, NULL); |
| |
| if (preedit_string != NULL && attr_list != NULL) |
| { |
| int idx; |
| |
| /* Get the byte index as used by PangoAttrIterator */ |
| for (idx = 0; col > 0 && preedit_string[idx] != '\0'; --col) |
| idx += utfc_ptr2len((char_u *)preedit_string + idx); |
| |
| if (preedit_string[idx] != '\0') |
| { |
| PangoAttrIterator *iter; |
| int start, end; |
| |
| char_attr = HL_NORMAL; |
| iter = pango_attr_list_get_iterator(attr_list); |
| |
| /* Extract all relevant attributes from the list. */ |
| do |
| { |
| pango_attr_iterator_range(iter, &start, &end); |
| |
| if (idx >= start && idx < end) |
| char_attr |= translate_pango_attributes(iter); |
| } |
| while (pango_attr_iterator_next(iter)); |
| |
| pango_attr_iterator_destroy(iter); |
| } |
| } |
| |
| if (attr_list != NULL) |
| pango_attr_list_unref(attr_list); |
| g_free(preedit_string); |
| |
| return char_attr; |
| } |
| |
| void |
| xim_init(void) |
| { |
| #ifdef XIM_DEBUG |
| xim_log("xim_init()\n"); |
| #endif |
| |
| g_return_if_fail(gui.drawarea != NULL); |
| #if GTK_CHECK_VERSION(3,0,0) |
| g_return_if_fail(gtk_widget_get_window(gui.drawarea) != NULL); |
| #else |
| g_return_if_fail(gui.drawarea->window != NULL); |
| #endif |
| |
| xic = gtk_im_multicontext_new(); |
| g_object_ref(xic); |
| |
| im_commit_handler_id = g_signal_connect(G_OBJECT(xic), "commit", |
| G_CALLBACK(&im_commit_cb), NULL); |
| g_signal_connect(G_OBJECT(xic), "preedit_changed", |
| G_CALLBACK(&im_preedit_changed_cb), NULL); |
| g_signal_connect(G_OBJECT(xic), "preedit_start", |
| G_CALLBACK(&im_preedit_start_cb), NULL); |
| g_signal_connect(G_OBJECT(xic), "preedit_end", |
| G_CALLBACK(&im_preedit_end_cb), NULL); |
| |
| #if GTK_CHECK_VERSION(3,0,0) |
| gtk_im_context_set_client_window(xic, gtk_widget_get_window(gui.drawarea)); |
| #else |
| gtk_im_context_set_client_window(xic, gui.drawarea->window); |
| #endif |
| } |
| |
| void |
| im_shutdown(void) |
| { |
| #ifdef XIM_DEBUG |
| xim_log("im_shutdown()\n"); |
| #endif |
| |
| if (xic != NULL) |
| { |
| gtk_im_context_focus_out(xic); |
| g_object_unref(xic); |
| xic = NULL; |
| } |
| im_is_active = FALSE; |
| im_commit_handler_id = 0; |
| preedit_start_col = MAXCOL; |
| xim_has_preediting = FALSE; |
| } |
| |
| /* |
| * Convert the string argument to keyval and state for GdkEventKey. |
| * If str is valid return TRUE, otherwise FALSE. |
| * |
| * See 'imactivatekey' for documentation of the format. |
| */ |
| static int |
| im_string_to_keyval(const char *str, unsigned int *keyval, unsigned int *state) |
| { |
| const char *mods_end; |
| unsigned tmp_keyval; |
| unsigned tmp_state = 0; |
| |
| mods_end = strrchr(str, '-'); |
| mods_end = (mods_end != NULL) ? mods_end + 1 : str; |
| |
| /* Parse modifier keys */ |
| while (str < mods_end) |
| switch (*str++) |
| { |
| case '-': break; |
| case 'S': case 's': tmp_state |= (unsigned)GDK_SHIFT_MASK; break; |
| case 'L': case 'l': tmp_state |= (unsigned)GDK_LOCK_MASK; break; |
| case 'C': case 'c': tmp_state |= (unsigned)GDK_CONTROL_MASK;break; |
| case '1': tmp_state |= (unsigned)GDK_MOD1_MASK; break; |
| case '2': tmp_state |= (unsigned)GDK_MOD2_MASK; break; |
| case '3': tmp_state |= (unsigned)GDK_MOD3_MASK; break; |
| case '4': tmp_state |= (unsigned)GDK_MOD4_MASK; break; |
| case '5': tmp_state |= (unsigned)GDK_MOD5_MASK; break; |
| default: |
| return FALSE; |
| } |
| |
| tmp_keyval = gdk_keyval_from_name(str); |
| |
| if (tmp_keyval == 0 || tmp_keyval == GDK_VoidSymbol) |
| return FALSE; |
| |
| if (keyval != NULL) |
| *keyval = tmp_keyval; |
| if (state != NULL) |
| *state = tmp_state; |
| |
| return TRUE; |
| } |
| |
| /* |
| * Return TRUE if p_imak is valid, otherwise FALSE. As a special case, an |
| * empty string is also regarded as valid. |
| * |
| * Note: The numerical key value of p_imak is cached if it was valid; thus |
| * boldly assuming im_xim_isvalid_imactivate() will always be called whenever |
| * 'imak' changes. This is currently the case but not obvious -- should |
| * probably rename the function for clarity. |
| */ |
| int |
| im_xim_isvalid_imactivate(void) |
| { |
| if (p_imak[0] == NUL) |
| { |
| im_activatekey_keyval = GDK_VoidSymbol; |
| im_activatekey_state = 0; |
| return TRUE; |
| } |
| |
| return im_string_to_keyval((const char *)p_imak, |
| &im_activatekey_keyval, |
| &im_activatekey_state); |
| } |
| |
| static void |
| im_synthesize_keypress(unsigned int keyval, unsigned int state) |
| { |
| GdkEventKey *event; |
| |
| # ifdef HAVE_GTK_MULTIHEAD |
| event = (GdkEventKey *)gdk_event_new(GDK_KEY_PRESS); |
| # if GTK_CHECK_VERSION(3,0,0) |
| g_object_ref(gtk_widget_get_window(gui.drawarea)); |
| /* unreffed by gdk_event_free() */ |
| # else |
| g_object_ref(gui.drawarea->window); /* unreffed by gdk_event_free() */ |
| # endif |
| # else |
| event = (GdkEventKey *)g_malloc0((gulong)sizeof(GdkEvent)); |
| event->type = GDK_KEY_PRESS; |
| # endif |
| # if GTK_CHECK_VERSION(3,0,0) |
| event->window = gtk_widget_get_window(gui.drawarea); |
| # else |
| event->window = gui.drawarea->window; |
| # endif |
| event->send_event = TRUE; |
| event->time = GDK_CURRENT_TIME; |
| event->state = state; |
| event->keyval = keyval; |
| event->hardware_keycode = /* needed for XIM */ |
| XKeysymToKeycode(GDK_WINDOW_XDISPLAY(event->window), (KeySym)keyval); |
| event->length = 0; |
| event->string = NULL; |
| |
| gtk_im_context_filter_keypress(xic, event); |
| |
| /* For consistency, also send the corresponding release event. */ |
| event->type = GDK_KEY_RELEASE; |
| event->send_event = FALSE; |
| gtk_im_context_filter_keypress(xic, event); |
| |
| # ifdef HAVE_GTK_MULTIHEAD |
| gdk_event_free((GdkEvent *)event); |
| # else |
| g_free(event); |
| # endif |
| } |
| |
| void |
| xim_reset(void) |
| { |
| if (xic != NULL) |
| { |
| gtk_im_context_reset(xic); |
| |
| if (p_imdisable) |
| im_shutdown(); |
| else |
| { |
| xim_set_focus(gui.in_focus); |
| |
| # ifdef FEAT_EVAL |
| if (p_imaf[0] != NUL) |
| { |
| char_u *argv[1]; |
| |
| if (im_is_active) |
| argv[0] = (char_u *)"1"; |
| else |
| argv[0] = (char_u *)"0"; |
| (void)call_func_retnr(p_imaf, 1, argv, FALSE); |
| } |
| else |
| # endif |
| if (im_activatekey_keyval != GDK_VoidSymbol) |
| { |
| if (im_is_active) |
| { |
| g_signal_handler_block(xic, im_commit_handler_id); |
| im_synthesize_keypress(im_activatekey_keyval, |
| im_activatekey_state); |
| g_signal_handler_unblock(xic, im_commit_handler_id); |
| } |
| } |
| else |
| { |
| im_shutdown(); |
| xim_init(); |
| xim_set_focus(gui.in_focus); |
| } |
| } |
| } |
| |
| preedit_start_col = MAXCOL; |
| xim_has_preediting = FALSE; |
| } |
| |
| int |
| xim_queue_key_press_event(GdkEventKey *event, int down) |
| { |
| if (down) |
| { |
| /* |
| * Workaround GTK2 XIM 'feature' that always converts keypad keys to |
| * chars., even when not part of an IM sequence (ref. feature of |
| * gdk/gdkkeyuni.c). |
| * Flag any keypad keys that might represent a single char. |
| * If this (on its own - i.e., not part of an IM sequence) is |
| * committed while we're processing one of these keys, we can ignore |
| * that commit and go ahead & process it ourselves. That way we can |
| * still distinguish keypad keys for use in mappings. |
| * Also add GDK_space to make <S-Space> work. |
| */ |
| switch (event->keyval) |
| { |
| case GDK_KP_Add: xim_expected_char = '+'; break; |
| case GDK_KP_Subtract: xim_expected_char = '-'; break; |
| case GDK_KP_Divide: xim_expected_char = '/'; break; |
| case GDK_KP_Multiply: xim_expected_char = '*'; break; |
| case GDK_KP_Decimal: xim_expected_char = '.'; break; |
| case GDK_KP_Equal: xim_expected_char = '='; break; |
| case GDK_KP_0: xim_expected_char = '0'; break; |
| case GDK_KP_1: xim_expected_char = '1'; break; |
| case GDK_KP_2: xim_expected_char = '2'; break; |
| case GDK_KP_3: xim_expected_char = '3'; break; |
| case GDK_KP_4: xim_expected_char = '4'; break; |
| case GDK_KP_5: xim_expected_char = '5'; break; |
| case GDK_KP_6: xim_expected_char = '6'; break; |
| case GDK_KP_7: xim_expected_char = '7'; break; |
| case GDK_KP_8: xim_expected_char = '8'; break; |
| case GDK_KP_9: xim_expected_char = '9'; break; |
| case GDK_space: xim_expected_char = ' '; break; |
| default: xim_expected_char = NUL; |
| } |
| xim_ignored_char = FALSE; |
| } |
| |
| /* |
| * When typing fFtT, XIM may be activated. Thus it must pass |
| * gtk_im_context_filter_keypress() in Normal mode. |
| * And while doing :sh too. |
| */ |
| if (xic != NULL && !p_imdisable |
| && (State & (INSERT | CMDLINE | NORMAL | EXTERNCMD)) != 0) |
| { |
| /* |
| * Filter 'imactivatekey' and map it to CTRL-^. This way, Vim is |
| * always aware of the current status of IM, and can even emulate |
| * the activation key for modules that don't support one. |
| */ |
| if (event->keyval == im_activatekey_keyval |
| && (event->state & im_activatekey_state) == im_activatekey_state) |
| { |
| unsigned int state_mask; |
| |
| /* Require the state of the 3 most used modifiers to match exactly. |
| * Otherwise e.g. <S-C-space> would be unusable for other purposes |
| * if the IM activate key is <S-space>. */ |
| state_mask = im_activatekey_state; |
| state_mask |= ((int)GDK_SHIFT_MASK | (int)GDK_CONTROL_MASK |
| | (int)GDK_MOD1_MASK); |
| |
| if ((event->state & state_mask) != im_activatekey_state) |
| return FALSE; |
| |
| /* Don't send it a second time on GDK_KEY_RELEASE. */ |
| if (event->type != GDK_KEY_PRESS) |
| return TRUE; |
| |
| if (map_to_exists_mode((char_u *)"", LANGMAP, FALSE)) |
| { |
| im_set_active(FALSE); |
| |
| /* ":lmap" mappings exists, toggle use of mappings. */ |
| State ^= LANGMAP; |
| if (State & LANGMAP) |
| { |
| curbuf->b_p_iminsert = B_IMODE_NONE; |
| State &= ~LANGMAP; |
| } |
| else |
| { |
| curbuf->b_p_iminsert = B_IMODE_LMAP; |
| State |= LANGMAP; |
| } |
| return TRUE; |
| } |
| |
| return gtk_im_context_filter_keypress(xic, event); |
| } |
| |
| /* Don't filter events through the IM context if IM isn't active |
| * right now. Unlike with GTK+ 1.2 we cannot rely on the IM module |
| * not doing anything before the activation key was sent. */ |
| if (im_activatekey_keyval == GDK_VoidSymbol || im_is_active) |
| { |
| int imresult = gtk_im_context_filter_keypress(xic, event); |
| |
| /* Some XIM send following sequence: |
| * 1. preedited string. |
| * 2. committed string. |
| * 3. line changed key. |
| * 4. preedited string. |
| * 5. remove preedited string. |
| * if 3, Vim can't move back the above line for 5. |
| * thus, this part should not parse the key. */ |
| if (!imresult && preedit_start_col != MAXCOL |
| && event->keyval == GDK_Return) |
| { |
| im_synthesize_keypress(GDK_Return, 0U); |
| return FALSE; |
| } |
| |
| /* If XIM tried to commit a keypad key as a single char., |
| * ignore it so we can use the keypad key 'raw', for mappings. */ |
| if (xim_expected_char != NUL && xim_ignored_char) |
| /* We had a keypad key, and XIM tried to thieve it */ |
| return FALSE; |
| |
| /* This is supposed to fix a problem with iBus, that space |
| * characters don't work in input mode. */ |
| xim_expected_char = NUL; |
| |
| /* Normal processing */ |
| return imresult; |
| } |
| } |
| |
| return FALSE; |
| } |
| |
| int |
| im_get_status(void) |
| { |
| # ifdef FEAT_EVAL |
| if (p_imsf[0] != NUL) |
| { |
| int is_active; |
| |
| /* FIXME: Don't execute user function in unsafe situation. */ |
| if (exiting |
| # ifdef FEAT_AUTOCMD |
| || is_autocmd_blocked() |
| # endif |
| ) |
| return FALSE; |
| /* FIXME: :py print 'xxx' is shown duplicate result. |
| * Use silent to avoid it. */ |
| ++msg_silent; |
| is_active = call_func_retnr(p_imsf, 0, NULL, FALSE); |
| --msg_silent; |
| return (is_active > 0); |
| } |
| # endif |
| return im_is_active; |
| } |
| |
| int |
| preedit_get_status(void) |
| { |
| return preedit_is_active; |
| } |
| |
| int |
| im_is_preediting(void) |
| { |
| return xim_has_preediting; |
| } |
| |
| # else /* !FEAT_GUI_GTK */ |
| |
| static int xim_is_active = FALSE; /* XIM should be active in the current |
| mode */ |
| static int xim_has_focus = FALSE; /* XIM is really being used for Vim */ |
| #ifdef FEAT_GUI_X11 |
| static XIMStyle input_style; |
| static int status_area_enabled = TRUE; |
| #endif |
| |
| /* |
| * Switch using XIM on/off. This is used by the code that changes "State". |
| */ |
| void |
| im_set_active(int active) |
| { |
| if (xic == NULL) |
| return; |
| |
| /* If 'imdisable' is set, XIM is never active. */ |
| if (p_imdisable) |
| active = FALSE; |
| #if !defined(FEAT_GUI_GTK) |
| else if (input_style & XIMPreeditPosition) |
| /* There is a problem in switching XIM off when preediting is used, |
| * and it is not clear how this can be solved. For now, keep XIM on |
| * all the time, like it was done in Vim 5.8. */ |
| active = TRUE; |
| #endif |
| |
| /* Remember the active state, it is needed when Vim gets keyboard focus. */ |
| xim_is_active = active; |
| xim_set_preedit(); |
| } |
| |
| /* |
| * Adjust using XIM for gaining or losing keyboard focus. Also called when |
| * "xim_is_active" changes. |
| */ |
| void |
| xim_set_focus(int focus) |
| { |
| if (xic == NULL) |
| return; |
| |
| /* |
| * XIM only gets focus when the Vim window has keyboard focus and XIM has |
| * been set active for the current mode. |
| */ |
| if (focus && xim_is_active) |
| { |
| if (!xim_has_focus) |
| { |
| xim_has_focus = TRUE; |
| XSetICFocus(xic); |
| } |
| } |
| else |
| { |
| if (xim_has_focus) |
| { |
| xim_has_focus = FALSE; |
| XUnsetICFocus(xic); |
| } |
| } |
| } |
| |
| void |
| im_set_position(int row UNUSED, int col UNUSED) |
| { |
| xim_set_preedit(); |
| } |
| |
| /* |
| * Set the XIM to the current cursor position. |
| */ |
| void |
| xim_set_preedit(void) |
| { |
| XVaNestedList attr_list; |
| XRectangle spot_area; |
| XPoint over_spot; |
| int line_space; |
| |
| if (xic == NULL) |
| return; |
| |
| xim_set_focus(TRUE); |
| |
| if (!xim_has_focus) |
| { |
| /* hide XIM cursor */ |
| over_spot.x = 0; |
| over_spot.y = -100; /* arbitrary invisible position */ |
| attr_list = (XVaNestedList) XVaCreateNestedList(0, |
| XNSpotLocation, |
| &over_spot, |
| NULL); |
| XSetICValues(xic, XNPreeditAttributes, attr_list, NULL); |
| XFree(attr_list); |
| return; |
| } |
| |
| if (input_style & XIMPreeditPosition) |
| { |
| if (xim_fg_color == INVALCOLOR) |
| { |
| xim_fg_color = gui.def_norm_pixel; |
| xim_bg_color = gui.def_back_pixel; |
| } |
| over_spot.x = TEXT_X(gui.col); |
| over_spot.y = TEXT_Y(gui.row); |
| spot_area.x = 0; |
| spot_area.y = 0; |
| spot_area.height = gui.char_height * Rows; |
| spot_area.width = gui.char_width * Columns; |
| line_space = gui.char_height; |
| attr_list = (XVaNestedList) XVaCreateNestedList(0, |
| XNSpotLocation, &over_spot, |
| XNForeground, (Pixel) xim_fg_color, |
| XNBackground, (Pixel) xim_bg_color, |
| XNArea, &spot_area, |
| XNLineSpace, line_space, |
| NULL); |
| if (XSetICValues(xic, XNPreeditAttributes, attr_list, NULL)) |
| EMSG(_("E284: Cannot set IC values")); |
| XFree(attr_list); |
| } |
| } |
| |
| #if defined(FEAT_GUI_X11) |
| static char e_xim[] = N_("E285: Failed to create input context"); |
| #endif |
| |
| #if defined(FEAT_GUI_X11) || defined(PROTO) |
| # if defined(XtSpecificationRelease) && XtSpecificationRelease >= 6 && !defined(sun) |
| # define USE_X11R6_XIM |
| # endif |
| |
| static int xim_real_init(Window x11_window, Display *x11_display); |
| |
| |
| #ifdef USE_X11R6_XIM |
| static void xim_instantiate_cb(Display *display, XPointer client_data, XPointer call_data); |
| static void xim_destroy_cb(XIM im, XPointer client_data, XPointer call_data); |
| |
| static void |
| xim_instantiate_cb( |
| Display *display, |
| XPointer client_data UNUSED, |
| XPointer call_data UNUSED) |
| { |
| Window x11_window; |
| Display *x11_display; |
| |
| #ifdef XIM_DEBUG |
| xim_log("xim_instantiate_cb()\n"); |
| #endif |
| |
| gui_get_x11_windis(&x11_window, &x11_display); |
| if (display != x11_display) |
| return; |
| |
| xim_real_init(x11_window, x11_display); |
| gui_set_shellsize(FALSE, FALSE, RESIZE_BOTH); |
| if (xic != NULL) |
| XUnregisterIMInstantiateCallback(x11_display, NULL, NULL, NULL, |
| xim_instantiate_cb, NULL); |
| } |
| |
| static void |
| xim_destroy_cb( |
| XIM im UNUSED, |
| XPointer client_data UNUSED, |
| XPointer call_data UNUSED) |
| { |
| Window x11_window; |
| Display *x11_display; |
| |
| #ifdef XIM_DEBUG |
| xim_log("xim_destroy_cb()\n"); |
| #endif |
| gui_get_x11_windis(&x11_window, &x11_display); |
| |
| xic = NULL; |
| status_area_enabled = FALSE; |
| |
| gui_set_shellsize(FALSE, FALSE, RESIZE_BOTH); |
| |
| XRegisterIMInstantiateCallback(x11_display, NULL, NULL, NULL, |
| xim_instantiate_cb, NULL); |
| } |
| #endif |
| |
| void |
| xim_init(void) |
| { |
| Window x11_window; |
| Display *x11_display; |
| |
| #ifdef XIM_DEBUG |
| xim_log("xim_init()\n"); |
| #endif |
| |
| gui_get_x11_windis(&x11_window, &x11_display); |
| |
| xic = NULL; |
| |
| if (xim_real_init(x11_window, x11_display)) |
| return; |
| |
| gui_set_shellsize(FALSE, FALSE, RESIZE_BOTH); |
| |
| #ifdef USE_X11R6_XIM |
| XRegisterIMInstantiateCallback(x11_display, NULL, NULL, NULL, |
| xim_instantiate_cb, NULL); |
| #endif |
| } |
| |
| static int |
| xim_real_init(Window x11_window, Display *x11_display) |
| { |
| int i; |
| char *p, |
| *s, |
| *ns, |
| *end, |
| tmp[1024]; |
| #define IMLEN_MAX 40 |
| char buf[IMLEN_MAX + 7]; |
| XIM xim = NULL; |
| XIMStyles *xim_styles; |
| XIMStyle this_input_style = 0; |
| Boolean found; |
| XPoint over_spot; |
| XVaNestedList preedit_list, status_list; |
| |
| input_style = 0; |
| status_area_enabled = FALSE; |
| |
| if (xic != NULL) |
| return FALSE; |
| |
| if (gui.rsrc_input_method != NULL && *gui.rsrc_input_method != NUL) |
| { |
| strcpy(tmp, gui.rsrc_input_method); |
| for (ns = s = tmp; ns != NULL && *s != NUL;) |
| { |
| s = (char *)skipwhite((char_u *)s); |
| if (*s == NUL) |
| break; |
| if ((ns = end = strchr(s, ',')) == NULL) |
| end = s + strlen(s); |
| while (isspace(((char_u *)end)[-1])) |
| end--; |
| *end = NUL; |
| |
| if (strlen(s) <= IMLEN_MAX) |
| { |
| strcpy(buf, "@im="); |
| strcat(buf, s); |
| if ((p = XSetLocaleModifiers(buf)) != NULL && *p != NUL |
| && (xim = XOpenIM(x11_display, NULL, NULL, NULL)) |
| != NULL) |
| break; |
| } |
| |
| s = ns + 1; |
| } |
| } |
| |
| if (xim == NULL && (p = XSetLocaleModifiers("")) != NULL && *p != NUL) |
| xim = XOpenIM(x11_display, NULL, NULL, NULL); |
| |
| /* This is supposed to be useful to obtain characters through |
| * XmbLookupString() without really using a XIM. */ |
| if (xim == NULL && (p = XSetLocaleModifiers("@im=none")) != NULL |
| && *p != NUL) |
| xim = XOpenIM(x11_display, NULL, NULL, NULL); |
| |
| if (xim == NULL) |
| { |
| /* Only give this message when verbose is set, because too many people |
| * got this message when they didn't want to use a XIM. */ |
| if (p_verbose > 0) |
| { |
| verbose_enter(); |
| EMSG(_("E286: Failed to open input method")); |
| verbose_leave(); |
| } |
| return FALSE; |
| } |
| |
| #ifdef USE_X11R6_XIM |
| { |
| XIMCallback destroy_cb; |
| |
| destroy_cb.callback = xim_destroy_cb; |
| destroy_cb.client_data = NULL; |
| if (XSetIMValues(xim, XNDestroyCallback, &destroy_cb, NULL)) |
| EMSG(_("E287: Warning: Could not set destroy callback to IM")); |
| } |
| #endif |
| |
| if (XGetIMValues(xim, XNQueryInputStyle, &xim_styles, NULL) || !xim_styles) |
| { |
| EMSG(_("E288: input method doesn't support any style")); |
| XCloseIM(xim); |
| return FALSE; |
| } |
| |
| found = False; |
| strcpy(tmp, gui.rsrc_preedit_type_name); |
| for (s = tmp; s && !found; ) |
| { |
| while (*s && isspace((unsigned char)*s)) |
| s++; |
| if (!*s) |
| break; |
| if ((ns = end = strchr(s, ',')) != 0) |
| ns++; |
| else |
| end = s + strlen(s); |
| while (isspace((unsigned char)*end)) |
| end--; |
| *end = '\0'; |
| |
| if (!strcmp(s, "OverTheSpot")) |
| this_input_style = (XIMPreeditPosition | XIMStatusArea); |
| else if (!strcmp(s, "OffTheSpot")) |
| this_input_style = (XIMPreeditArea | XIMStatusArea); |
| else if (!strcmp(s, "Root")) |
| this_input_style = (XIMPreeditNothing | XIMStatusNothing); |
| |
| for (i = 0; (unsigned short)i < xim_styles->count_styles; i++) |
| { |
| if (this_input_style == xim_styles->supported_styles[i]) |
| { |
| found = True; |
| break; |
| } |
| } |
| if (!found) |
| for (i = 0; (unsigned short)i < xim_styles->count_styles; i++) |
| { |
| if ((xim_styles->supported_styles[i] & this_input_style) |
| == (this_input_style & ~XIMStatusArea)) |
| { |
| this_input_style &= ~XIMStatusArea; |
| found = True; |
| break; |
| } |
| } |
| |
| s = ns; |
| } |
| XFree(xim_styles); |
| |
| if (!found) |
| { |
| /* Only give this message when verbose is set, because too many people |
| * got this message when they didn't want to use a XIM. */ |
| if (p_verbose > 0) |
| { |
| verbose_enter(); |
| EMSG(_("E289: input method doesn't support my preedit type")); |
| verbose_leave(); |
| } |
| XCloseIM(xim); |
| return FALSE; |
| } |
| |
| over_spot.x = TEXT_X(gui.col); |
| over_spot.y = TEXT_Y(gui.row); |
| input_style = this_input_style; |
| |
| /* A crash was reported when trying to pass gui.norm_font as XNFontSet, |
| * thus that has been removed. Hopefully the default works... */ |
| #ifdef FEAT_XFONTSET |
| if (gui.fontset != NOFONTSET) |
| { |
| preedit_list = XVaCreateNestedList(0, |
| XNSpotLocation, &over_spot, |
| XNForeground, (Pixel)gui.def_norm_pixel, |
| XNBackground, (Pixel)gui.def_back_pixel, |
| XNFontSet, (XFontSet)gui.fontset, |
| NULL); |
| status_list = XVaCreateNestedList(0, |
| XNForeground, (Pixel)gui.def_norm_pixel, |
| XNBackground, (Pixel)gui.def_back_pixel, |
| XNFontSet, (XFontSet)gui.fontset, |
| NULL); |
| } |
| else |
| #endif |
| { |
| preedit_list = XVaCreateNestedList(0, |
| XNSpotLocation, &over_spot, |
| XNForeground, (Pixel)gui.def_norm_pixel, |
| XNBackground, (Pixel)gui.def_back_pixel, |
| NULL); |
| status_list = XVaCreateNestedList(0, |
| XNForeground, (Pixel)gui.def_norm_pixel, |
| XNBackground, (Pixel)gui.def_back_pixel, |
| NULL); |
| } |
| |
| xic = XCreateIC(xim, |
| XNInputStyle, input_style, |
| XNClientWindow, x11_window, |
| XNFocusWindow, gui.wid, |
| XNPreeditAttributes, preedit_list, |
| XNStatusAttributes, status_list, |
| NULL); |
| XFree(status_list); |
| XFree(preedit_list); |
| if (xic != NULL) |
| { |
| if (input_style & XIMStatusArea) |
| { |
| xim_set_status_area(); |
| status_area_enabled = TRUE; |
| } |
| else |
| gui_set_shellsize(FALSE, FALSE, RESIZE_BOTH); |
| } |
| else |
| { |
| EMSG(_(e_xim)); |
| XCloseIM(xim); |
| return FALSE; |
| } |
| |
| return TRUE; |
| } |
| |
| #endif /* FEAT_GUI_X11 */ |
| |
| /* |
| * Get IM status. When IM is on, return TRUE. Else return FALSE. |
| * FIXME: This doesn't work correctly: Having focus doesn't always mean XIM is |
| * active, when not having focus XIM may still be active (e.g., when using a |
| * tear-off menu item). |
| */ |
| int |
| im_get_status(void) |
| { |
| return xim_has_focus; |
| } |
| |
| # endif /* !FEAT_GUI_GTK */ |
| |
| # if !defined(FEAT_GUI_GTK) || defined(PROTO) |
| /* |
| * Set up the status area. |
| * |
| * This should use a separate Widget, but that seems not possible, because |
| * preedit_area and status_area should be set to the same window as for the |
| * text input. Unfortunately this means the status area pollutes the text |
| * window... |
| */ |
| void |
| xim_set_status_area(void) |
| { |
| XVaNestedList preedit_list = 0, status_list = 0, list = 0; |
| XRectangle pre_area, status_area; |
| |
| if (xic == NULL) |
| return; |
| |
| if (input_style & XIMStatusArea) |
| { |
| if (input_style & XIMPreeditArea) |
| { |
| XRectangle *needed_rect; |
| |
| /* to get status_area width */ |
| status_list = XVaCreateNestedList(0, XNAreaNeeded, |
| &needed_rect, NULL); |
| XGetICValues(xic, XNStatusAttributes, status_list, NULL); |
| XFree(status_list); |
| |
| status_area.width = needed_rect->width; |
| } |
| else |
| status_area.width = gui.char_width * Columns; |
| |
| status_area.x = 0; |
| status_area.y = gui.char_height * Rows + gui.border_offset; |
| if (gui.which_scrollbars[SBAR_BOTTOM]) |
| status_area.y += gui.scrollbar_height; |
| #ifdef FEAT_MENU |
| if (gui.menu_is_active) |
| status_area.y += gui.menu_height; |
| #endif |
| status_area.height = gui.char_height; |
| status_list = XVaCreateNestedList(0, XNArea, &status_area, NULL); |
| } |
| else |
| { |
| status_area.x = 0; |
| status_area.y = gui.char_height * Rows + gui.border_offset; |
| if (gui.which_scrollbars[SBAR_BOTTOM]) |
| status_area.y += gui.scrollbar_height; |
| #ifdef FEAT_MENU |
| if (gui.menu_is_active) |
| status_area.y += gui.menu_height; |
| #endif |
| status_area.width = 0; |
| status_area.height = gui.char_height; |
| } |
| |
| if (input_style & XIMPreeditArea) /* off-the-spot */ |
| { |
| pre_area.x = status_area.x + status_area.width; |
| pre_area.y = gui.char_height * Rows + gui.border_offset; |
| pre_area.width = gui.char_width * Columns - pre_area.x; |
| if (gui.which_scrollbars[SBAR_BOTTOM]) |
| pre_area.y += gui.scrollbar_height; |
| #ifdef FEAT_MENU |
| if (gui.menu_is_active) |
| pre_area.y += gui.menu_height; |
| #endif |
| pre_area.height = gui.char_height; |
| preedit_list = XVaCreateNestedList(0, XNArea, &pre_area, NULL); |
| } |
| else if (input_style & XIMPreeditPosition) /* over-the-spot */ |
| { |
| pre_area.x = 0; |
| pre_area.y = 0; |
| pre_area.height = gui.char_height * Rows; |
| pre_area.width = gui.char_width * Columns; |
| preedit_list = XVaCreateNestedList(0, XNArea, &pre_area, NULL); |
| } |
| |
| if (preedit_list && status_list) |
| list = XVaCreateNestedList(0, XNPreeditAttributes, preedit_list, |
| XNStatusAttributes, status_list, NULL); |
| else if (preedit_list) |
| list = XVaCreateNestedList(0, XNPreeditAttributes, preedit_list, |
| NULL); |
| else if (status_list) |
| list = XVaCreateNestedList(0, XNStatusAttributes, status_list, |
| NULL); |
| else |
| list = NULL; |
| |
| if (list) |
| { |
| XSetICValues(xic, XNVaNestedList, list, NULL); |
| XFree(list); |
| } |
| if (status_list) |
| XFree(status_list); |
| if (preedit_list) |
| XFree(preedit_list); |
| } |
| |
| int |
| xim_get_status_area_height(void) |
| { |
| if (status_area_enabled) |
| return gui.char_height; |
| return 0; |
| } |
| # endif |
| |
| #endif /* FEAT_XIM */ |
| |
| #if defined(FEAT_MBYTE) || defined(PROTO) |
| |
| /* |
| * Setup "vcp" for conversion from "from" to "to". |
| * The names must have been made canonical with enc_canonize(). |
| * vcp->vc_type must have been initialized to CONV_NONE. |
| * Note: cannot be used for conversion from/to ucs-2 and ucs-4 (will use utf-8 |
| * instead). |
| * Afterwards invoke with "from" and "to" equal to NULL to cleanup. |
| * Return FAIL when conversion is not supported, OK otherwise. |
| */ |
| int |
| convert_setup(vimconv_T *vcp, char_u *from, char_u *to) |
| { |
| return convert_setup_ext(vcp, from, TRUE, to, TRUE); |
| } |
| |
| /* |
| * As convert_setup(), but only when from_unicode_is_utf8 is TRUE will all |
| * "from" unicode charsets be considered utf-8. Same for "to". |
| */ |
| int |
| convert_setup_ext( |
| vimconv_T *vcp, |
| char_u *from, |
| int from_unicode_is_utf8, |
| char_u *to, |
| int to_unicode_is_utf8) |
| { |
| int from_prop; |
| int to_prop; |
| int from_is_utf8; |
| int to_is_utf8; |
| |
| /* Reset to no conversion. */ |
| # ifdef USE_ICONV |
| if (vcp->vc_type == CONV_ICONV && vcp->vc_fd != (iconv_t)-1) |
| iconv_close(vcp->vc_fd); |
| # endif |
| vcp->vc_type = CONV_NONE; |
| vcp->vc_factor = 1; |
| vcp->vc_fail = FALSE; |
| |
| /* No conversion when one of the names is empty or they are equal. */ |
| if (from == NULL || *from == NUL || to == NULL || *to == NUL |
| || STRCMP(from, to) == 0) |
| return OK; |
| |
| from_prop = enc_canon_props(from); |
| to_prop = enc_canon_props(to); |
| if (from_unicode_is_utf8) |
| from_is_utf8 = from_prop & ENC_UNICODE; |
| else |
| from_is_utf8 = from_prop == ENC_UNICODE; |
| if (to_unicode_is_utf8) |
| to_is_utf8 = to_prop & ENC_UNICODE; |
| else |
| to_is_utf8 = to_prop == ENC_UNICODE; |
| |
| if ((from_prop & ENC_LATIN1) && to_is_utf8) |
| { |
| /* Internal latin1 -> utf-8 conversion. */ |
| vcp->vc_type = CONV_TO_UTF8; |
| vcp->vc_factor = 2; /* up to twice as long */ |
| } |
| else if ((from_prop & ENC_LATIN9) && to_is_utf8) |
| { |
| /* Internal latin9 -> utf-8 conversion. */ |
| vcp->vc_type = CONV_9_TO_UTF8; |
| vcp->vc_factor = 3; /* up to three as long (euro sign) */ |
| } |
| else if (from_is_utf8 && (to_prop & ENC_LATIN1)) |
| { |
| /* Internal utf-8 -> latin1 conversion. */ |
| vcp->vc_type = CONV_TO_LATIN1; |
| } |
| else if (from_is_utf8 && (to_prop & ENC_LATIN9)) |
| { |
| /* Internal utf-8 -> latin9 conversion. */ |
| vcp->vc_type = CONV_TO_LATIN9; |
| } |
| #ifdef WIN3264 |
| /* Win32-specific codepage <-> codepage conversion without iconv. */ |
| else if ((from_is_utf8 || encname2codepage(from) > 0) |
| && (to_is_utf8 || encname2codepage(to) > 0)) |
| { |
| vcp->vc_type = CONV_CODEPAGE; |
| vcp->vc_factor = 2; /* up to twice as long */ |
| vcp->vc_cpfrom = from_is_utf8 ? 0 : encname2codepage(from); |
| vcp->vc_cpto = to_is_utf8 ? 0 : encname2codepage(to); |
| } |
| #endif |
| #ifdef MACOS_X |
| else if ((from_prop & ENC_MACROMAN) && (to_prop & ENC_LATIN1)) |
| { |
| vcp->vc_type = CONV_MAC_LATIN1; |
| } |
| else if ((from_prop & ENC_MACROMAN) && to_is_utf8) |
| { |
| vcp->vc_type = CONV_MAC_UTF8; |
| vcp->vc_factor = 2; /* up to twice as long */ |
| } |
| else if ((from_prop & ENC_LATIN1) && (to_prop & ENC_MACROMAN)) |
| { |
| vcp->vc_type = CONV_LATIN1_MAC; |
| } |
| else if (from_is_utf8 && (to_prop & ENC_MACROMAN)) |
| { |
| vcp->vc_type = CONV_UTF8_MAC; |
| } |
| #endif |
| # ifdef USE_ICONV |
| else |
| { |
| /* Use iconv() for conversion. */ |
| vcp->vc_fd = (iconv_t)my_iconv_open( |
| to_is_utf8 ? (char_u *)"utf-8" : to, |
| from_is_utf8 ? (char_u *)"utf-8" : from); |
| if (vcp->vc_fd != (iconv_t)-1) |
| { |
| vcp->vc_type = CONV_ICONV; |
| vcp->vc_factor = 4; /* could be longer too... */ |
| } |
| } |
| # endif |
| if (vcp->vc_type == CONV_NONE) |
| return FAIL; |
| |
| return OK; |
| } |
| |
| #if defined(FEAT_GUI) || defined(AMIGA) || defined(WIN3264) \ |
| || defined(PROTO) |
| /* |
| * Do conversion on typed input characters in-place. |
| * The input and output are not NUL terminated! |
| * Returns the length after conversion. |
| */ |
| int |
| convert_input(char_u *ptr, int len, int maxlen) |
| { |
| return convert_input_safe(ptr, len, maxlen, NULL, NULL); |
| } |
| #endif |
| |
| /* |
| * Like convert_input(), but when there is an incomplete byte sequence at the |
| * end return that as an allocated string in "restp" and set "*restlenp" to |
| * the length. If "restp" is NULL it is not used. |
| */ |
| int |
| convert_input_safe( |
| char_u *ptr, |
| int len, |
| int maxlen, |
| char_u **restp, |
| int *restlenp) |
| { |
| char_u *d; |
| int dlen = len; |
| int unconvertlen = 0; |
| |
| d = string_convert_ext(&input_conv, ptr, &dlen, |
| restp == NULL ? NULL : &unconvertlen); |
| if (d != NULL) |
| { |
| if (dlen <= maxlen) |
| { |
| if (unconvertlen > 0) |
| { |
| /* Move the unconverted characters to allocated memory. */ |
| *restp = alloc(unconvertlen); |
| if (*restp != NULL) |
| mch_memmove(*restp, ptr + len - unconvertlen, unconvertlen); |
| *restlenp = unconvertlen; |
| } |
| mch_memmove(ptr, d, dlen); |
| } |
| else |
| /* result is too long, keep the unconverted text (the caller must |
| * have done something wrong!) */ |
| dlen = len; |
| vim_free(d); |
| } |
| return dlen; |
| } |
| |
| /* |
| * Convert text "ptr[*lenp]" according to "vcp". |
| * Returns the result in allocated memory and sets "*lenp". |
| * When "lenp" is NULL, use NUL terminated strings. |
| * Illegal chars are often changed to "?", unless vcp->vc_fail is set. |
| * When something goes wrong, NULL is returned and "*lenp" is unchanged. |
| */ |
| char_u * |
| string_convert( |
| vimconv_T *vcp, |
| char_u *ptr, |
| int *lenp) |
| { |
| return string_convert_ext(vcp, ptr, lenp, NULL); |
| } |
| |
| /* |
| * Like string_convert(), but when "unconvlenp" is not NULL and there are is |
| * an incomplete sequence at the end it is not converted and "*unconvlenp" is |
| * set to the number of remaining bytes. |
| */ |
| char_u * |
| string_convert_ext( |
| vimconv_T *vcp, |
| char_u *ptr, |
| int *lenp, |
| int *unconvlenp) |
| { |
| char_u *retval = NULL; |
| char_u *d; |
| int len; |
| int i; |
| int l; |
| int c; |
| |
| if (lenp == NULL) |
| len = (int)STRLEN(ptr); |
| else |
| len = *lenp; |
| if (len == 0) |
| return vim_strsave((char_u *)""); |
| |
| switch (vcp->vc_type) |
| { |
| case CONV_TO_UTF8: /* latin1 to utf-8 conversion */ |
| retval = alloc(len * 2 + 1); |
| if (retval == NULL) |
| break; |
| d = retval; |
| for (i = 0; i < len; ++i) |
| { |
| c = ptr[i]; |
| if (c < 0x80) |
| *d++ = c; |
| else |
| { |
| *d++ = 0xc0 + ((unsigned)c >> 6); |
| *d++ = 0x80 + (c & 0x3f); |
| } |
| } |
| *d = NUL; |
| if (lenp != NULL) |
| *lenp = (int)(d - retval); |
| break; |
| |
| case CONV_9_TO_UTF8: /* latin9 to utf-8 conversion */ |
| retval = alloc(len * 3 + 1); |
| if (retval == NULL) |
| break; |
| d = retval; |
| for (i = 0; i < len; ++i) |
| { |
| c = ptr[i]; |
| switch (c) |
| { |
| case 0xa4: c = 0x20ac; break; /* euro */ |
| case 0xa6: c = 0x0160; break; /* S hat */ |
| case 0xa8: c = 0x0161; break; /* S -hat */ |
| case 0xb4: c = 0x017d; break; /* Z hat */ |
| case 0xb8: c = 0x017e; break; /* Z -hat */ |
| case 0xbc: c = 0x0152; break; /* OE */ |
| case 0xbd: c = 0x0153; break; /* oe */ |
| case 0xbe: c = 0x0178; break; /* Y */ |
| } |
| d += utf_char2bytes(c, d); |
| } |
| *d = NUL; |
| if (lenp != NULL) |
| *lenp = (int)(d - retval); |
| break; |
| |
| case CONV_TO_LATIN1: /* utf-8 to latin1 conversion */ |
| case CONV_TO_LATIN9: /* utf-8 to latin9 conversion */ |
| retval = alloc(len + 1); |
| if (retval == NULL) |
| break; |
| d = retval; |
| for (i = 0; i < len; ++i) |
| { |
| l = utf_ptr2len_len(ptr + i, len - i); |
| if (l == 0) |
| *d++ = NUL; |
| else if (l == 1) |
| { |
| int l_w = utf8len_tab_zero[ptr[i]]; |
| |
| if (l_w == 0) |
| { |
| /* Illegal utf-8 byte cannot be converted */ |
| vim_free(retval); |
| return NULL; |
| } |
| if (unconvlenp != NULL && l_w > len - i) |
| { |
| /* Incomplete sequence at the end. */ |
| *unconvlenp = len - i; |
| break; |
| } |
| *d++ = ptr[i]; |
| } |
| else |
| { |
| c = utf_ptr2char(ptr + i); |
| if (vcp->vc_type == CONV_TO_LATIN9) |
| switch (c) |
| { |
| case 0x20ac: c = 0xa4; break; /* euro */ |
| case 0x0160: c = 0xa6; break; /* S hat */ |
| case 0x0161: c = 0xa8; break; /* S -hat */ |
| case 0x017d: c = 0xb4; break; /* Z hat */ |
| case 0x017e: c = 0xb8; break; /* Z -hat */ |
| case 0x0152: c = 0xbc; break; /* OE */ |
| case 0x0153: c = 0xbd; break; /* oe */ |
| case 0x0178: c = 0xbe; break; /* Y */ |
| case 0xa4: |
| case 0xa6: |
| case 0xa8: |
| case 0xb4: |
| case 0xb8: |
| case 0xbc: |
| case 0xbd: |
| case 0xbe: c = 0x100; break; /* not in latin9 */ |
| } |
| if (!utf_iscomposing(c)) /* skip composing chars */ |
| { |
| if (c < 0x100) |
| *d++ = c; |
| else if (vcp->vc_fail) |
| { |
| vim_free(retval); |
| return NULL; |
| } |
| else |
| { |
| *d++ = 0xbf; |
| if (utf_char2cells(c) > 1) |
| *d++ = '?'; |
| } |
| } |
| i += l - 1; |
| } |
| } |
| *d = NUL; |
| if (lenp != NULL) |
| *lenp = (int)(d - retval); |
| break; |
| |
| # ifdef MACOS_CONVERT |
| case CONV_MAC_LATIN1: |
| retval = mac_string_convert(ptr, len, lenp, vcp->vc_fail, |
| 'm', 'l', unconvlenp); |
| break; |
| |
| case CONV_LATIN1_MAC: |
| retval = mac_string_convert(ptr, len, lenp, vcp->vc_fail, |
| 'l', 'm', unconvlenp); |
| break; |
| |
| case CONV_MAC_UTF8: |
| retval = mac_string_convert(ptr, len, lenp, vcp->vc_fail, |
| 'm', 'u', unconvlenp); |
| break; |
| |
| case CONV_UTF8_MAC: |
| retval = mac_string_convert(ptr, len, lenp, vcp->vc_fail, |
| 'u', 'm', unconvlenp); |
| break; |
| # endif |
| |
| # ifdef USE_ICONV |
| case CONV_ICONV: /* conversion with output_conv.vc_fd */ |
| retval = iconv_string(vcp, ptr, len, unconvlenp, lenp); |
| break; |
| # endif |
| # ifdef WIN3264 |
| case CONV_CODEPAGE: /* codepage -> codepage */ |
| { |
| int retlen; |
| int tmp_len; |
| short_u *tmp; |
| |
| /* 1. codepage/UTF-8 -> ucs-2. */ |
| if (vcp->vc_cpfrom == 0) |
| tmp_len = utf8_to_utf16(ptr, len, NULL, NULL); |
| else |
| { |
| tmp_len = MultiByteToWideChar(vcp->vc_cpfrom, |
| unconvlenp ? MB_ERR_INVALID_CHARS : 0, |
| (char *)ptr, len, 0, 0); |
| if (tmp_len == 0 |
| && GetLastError() == ERROR_NO_UNICODE_TRANSLATION) |
| { |
| if (lenp != NULL) |
| *lenp = 0; |
| if (unconvlenp != NULL) |
| *unconvlenp = len; |
| retval = alloc(1); |
| if (retval) |
| retval[0] = NUL; |
| return retval; |
| } |
| } |
| tmp = (short_u *)alloc(sizeof(short_u) * tmp_len); |
| if (tmp == NULL) |
| break; |
| if (vcp->vc_cpfrom == 0) |
| utf8_to_utf16(ptr, len, tmp, unconvlenp); |
| else |
| MultiByteToWideChar(vcp->vc_cpfrom, 0, |
| (char *)ptr, len, tmp, tmp_len); |
| |
| /* 2. ucs-2 -> codepage/UTF-8. */ |
| if (vcp->vc_cpto == 0) |
| retlen = utf16_to_utf8(tmp, tmp_len, NULL); |
| else |
| retlen = WideCharToMultiByte(vcp->vc_cpto, 0, |
| tmp, tmp_len, 0, 0, 0, 0); |
| retval = alloc(retlen + 1); |
| if (retval != NULL) |
| { |
| if (vcp->vc_cpto == 0) |
| utf16_to_utf8(tmp, tmp_len, retval); |
| else |
| WideCharToMultiByte(vcp->vc_cpto, 0, |
| tmp, tmp_len, |
| (char *)retval, retlen, 0, 0); |
| retval[retlen] = NUL; |
| if (lenp != NULL) |
| *lenp = retlen; |
| } |
| vim_free(tmp); |
| break; |
| } |
| # endif |
| } |
| |
| return retval; |
| } |
| #endif |