Mercurial > vim
view src/mbyte.c @ 303:6a21eb563c34
updated for version 7.0080
| author | vimboss |
|---|---|
| date | Sun, 05 Jun 2005 22:01:26 +0000 |
| parents | 006e9c8a6a8a |
| children | 74e9d19831c2 |
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/* 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 two 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 # include <windows.h> # ifdef WIN32 # undef WIN32 /* Some windows.h define WIN32, we don't want that here. */ # endif #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_XIM) && defined(HAVE_GTK2) # include <gdk/gdkkeysyms.h> # 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 __ARGS((char_u *name)); static int dbcs_char2len __ARGS((int c)); static int dbcs_char2bytes __ARGS((int c, char_u *buf)); static int dbcs_ptr2len_check __ARGS((char_u *p)); static int dbcs_char2cells __ARGS((int c)); static int dbcs_ptr2char __ARGS((char_u *p)); /* 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 one, because these will be used separately. */ 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, /*bogus*/ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /*bogus*/ 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, }; /* * 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 = 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_CP1255 7 {"cp1255", ENC_8BIT, 1255}, /* close to iso-8859-8 */ #define IDX_ISO_8 8 {"iso-8859-8", ENC_8BIT, 0}, #define IDX_ISO_9 9 {"iso-8859-9", ENC_8BIT, 0}, #define IDX_ISO_10 10 {"iso-8859-10", ENC_8BIT, 0}, #define IDX_ISO_11 11 {"iso-8859-11", ENC_8BIT, 0}, #define IDX_ISO_13 12 {"iso-8859-13", ENC_8BIT, 0}, #define IDX_ISO_14 13 {"iso-8859-14", ENC_8BIT, 0}, #define IDX_ISO_15 14 {"iso-8859-15", ENC_8BIT + ENC_LATIN9, 0}, #define IDX_KOI8_R 15 {"koi8-r", ENC_8BIT, 0}, #define IDX_KOI8_U 16 {"koi8-u", ENC_8BIT, 0}, #define IDX_UTF8 17 {"utf-8", ENC_UNICODE, 0}, #define IDX_UCS2 18 {"ucs-2", ENC_UNICODE + ENC_ENDIAN_B + ENC_2BYTE, 0}, #define IDX_UCS2LE 19 {"ucs-2le", ENC_UNICODE + ENC_ENDIAN_L + ENC_2BYTE, 0}, #define IDX_UTF16 20 {"utf-16", ENC_UNICODE + ENC_ENDIAN_B + ENC_2WORD, 0}, #define IDX_UTF16LE 21 {"utf-16le", ENC_UNICODE + ENC_ENDIAN_L + ENC_2WORD, 0}, #define IDX_UCS4 22 {"ucs-4", ENC_UNICODE + ENC_ENDIAN_B + ENC_4BYTE, 0}, #define IDX_UCS4LE 23 {"ucs-4le", ENC_UNICODE + ENC_ENDIAN_L + ENC_4BYTE, 0}, #define IDX_DEBUG 24 {"debug", ENC_DBCS, DBCS_DEBUG}, #define IDX_CP932 25 {"cp932", ENC_DBCS, DBCS_JPN}, #define IDX_CP949 26 {"cp949", ENC_DBCS, DBCS_KOR}, #define IDX_CP936 27 {"cp936", ENC_DBCS, DBCS_CHS}, #define IDX_CP950 28 {"cp950", ENC_DBCS, DBCS_CHT}, #define IDX_EUC_JP 29 {"euc-jp", ENC_DBCS, DBCS_JPNU}, #define IDX_SJIS 30 {"sjis", ENC_DBCS, DBCS_JPN}, #define IDX_EUC_KR 31 {"euc-kr", ENC_DBCS, DBCS_KORU}, #define IDX_EUC_CN 32 {"euc-cn", ENC_DBCS, DBCS_CHSU}, #define IDX_EUC_TW 33 {"euc-tw", ENC_DBCS, DBCS_CHTU}, #define IDX_BIG5 34 {"big5", ENC_DBCS, DBCS_CHT}, #define IDX_CP1251 35 {"cp1251", ENC_8BIT, 1251}, #define IDX_MACROMAN 36 {"macroman", ENC_8BIT + ENC_MACROMAN, 0}, #define IDX_COUNT 37 }; /* * 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}, {"932", IDX_CP932}, {"949", IDX_CP949}, {"936", IDX_CP936}, {"950", IDX_CP950}, {"eucjp", IDX_EUC_JP}, {"unix-jis", IDX_EUC_JP}, {"ujis", IDX_EUC_JP}, {"shift-jis", IDX_SJIS}, {"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}, {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(name) 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(name) 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(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() { 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(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(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(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); #ifdef WIN3264 enc_codepage = encname2codepage(p_enc); enc_latin9 = (STRCMP(p_enc, "iso-8859-15") == 0); #endif /* * Set the function pointers. */ if (enc_utf8) { mb_ptr2len_check = utfc_ptr2len_check; mb_char2len = utf_char2len; mb_char2bytes = utf_char2bytes; mb_ptr2cells = utf_ptr2cells; 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_check = dbcs_ptr2len_check; mb_char2len = dbcs_char2len; mb_char2bytes = dbcs_char2bytes; mb_ptr2cells = dbcs_ptr2cells; mb_char2cells = dbcs_char2cells; mb_off2cells = dbcs_off2cells; mb_ptr2char = dbcs_ptr2char; mb_head_off = dbcs_head_off; } else { mb_ptr2len_check = latin_ptr2len_check; mb_char2len = latin_char2len; mb_char2bytes = latin_char2bytes; mb_ptr2cells = latin_ptr2cells; 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, (BYTE)i) ? 2 : 1; #else # ifdef MACOS /* * 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]; # 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. */ 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); #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_GUI_KDE if (gui.in_use) gui_mch_update_codec(); #endif #ifdef FEAT_SYN_HL /* 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() { 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; } /* * 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(p) char_u *p; { if (MB_BYTE2LEN(p[0]) == 1) { if (p[0] == NUL || vim_iswhite(p[0])) return 0; if (vim_iswordc(p[0])) 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(lead, trail) unsigned lead; unsigned trail; { switch (enc_dbcs) { /* please add classfy 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: /* KU-TEN (Japanese comma) */ case 0x2123: /* TOU-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 : Hirigana/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: /* Hirigana/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. */ /* ARGSUSED */ int latin_char2len(c) int c; { return 1; } static int dbcs_char2len(c) 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(c, buf) int c; char_u *buf; { buf[0] = c; return 1; } static int dbcs_char2bytes(c, buf) 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_check() 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_check(p) char_u *p; { return MB_BYTE2LEN(*p); } static int dbcs_ptr2len_check(p) 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; } struct interval { unsigned short first; unsigned short last; }; static int intable __ARGS((struct interval *table, size_t size, int c)); /* * Return TRUE if "c" is in "table[size / sizeof(struct interval)]". */ static int intable(table, size, c) 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 = 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; } /* * 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(c) int c; { /* sorted list of non-overlapping intervals of East Asian Ambiguous * characters, generated with: * "uniset +WIDTH-A -cat=Me -cat=Mn -cat=Cf c" */ static struct interval ambiguous[] = { {0x00A1, 0x00A1}, {0x00A4, 0x00A4}, {0x00A7, 0x00A8}, {0x00AA, 0x00AA}, {0x00AE, 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}, {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}, {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}, {0x2614, 0x2615}, {0x261C, 0x261C}, {0x261E, 0x261E}, {0x2640, 0x2640}, {0x2642, 0x2642}, {0x2660, 0x2661}, {0x2663, 0x2665}, {0x2667, 0x266A}, {0x266C, 0x266D}, {0x266F, 0x266F}, {0x273D, 0x273D}, {0x2776, 0x277F}, {0xE000, 0xF8FF}, {0xFFFD, 0xFFFD}, /* {0xF0000, 0xFFFFD}, {0x100000, 0x10FFFD} */ }; 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 (c >= 0x1100 && (c <= 0x115f /* Hangul Jamo */ || c == 0x2329 || c == 0x232a || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f) /* CJK ... Yi */ || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */ || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */ || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */ || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */ || (c >= 0xffe0 && c <= 0xffe6) || (c >= 0x20000 && c <= 0x2fffd) || (c >= 0x30000 && c <= 0x3fffd))) return 2; #endif } /* 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. */ /*ARGSUSED*/ int latin_ptr2cells(p) char_u *p; { return 1; } int utf_ptr2cells(p) 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_check(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(p) 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_char2cells() function pointer. * Return the number of display cells character "c" occupies. * Only takes care of multi-byte chars, not "^C" and such. */ /*ARGSUSED*/ int latin_char2cells(c) int c; { return 1; } static int dbcs_char2cells(c) 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); } /* * mb_off2cells() function pointer. * Return number of display cells for char at ScreenLines[off]. * Caller must make sure "off" and "off + 1" are valid! */ /*ARGSUSED*/ int latin_off2cells(off) unsigned off; { return 1; } int dbcs_off2cells(off) unsigned off; { /* 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(off) unsigned off; { return ScreenLines[off + 1] == 0 ? 2 : 1; } /* * mb_ptr2char() function pointer. * Convert a byte sequence into a character. */ int latin_ptr2char(p) char_u *p; { return *p; } static int dbcs_ptr2char(p) 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(p) char_u *p; { int len; if (p[0] < 0x80) /* be quick for ASCII */ return p[0]; len = utf8len_tab[p[0]]; if ((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]; } /* * Get character at **pp and advance *pp to the next character. * Note: composing characters are skipped! */ int mb_ptr2char_adv(pp) char_u **pp; { int c; c = (*mb_ptr2char)(*pp); *pp += (*mb_ptr2len_check)(*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(one, two) 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(two) 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(p1, p2) 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 chararacter. Also get up to two * composing characters. */ int utfc_ptr2char(p, p1, p2) char_u *p; int *p1; /* return: first composing char or 0 */ int *p2; /* return: second composing char or 0 */ { int len; int c; int cc; c = utf_ptr2char(p); len = utf_ptr2len_check(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)) { *p1 = utf_ptr2char(p + len); len += utf_ptr2len_check(p + len); if (p[len] >= 0x80 && utf_iscomposing(cc = utf_ptr2char(p + len))) *p2 = cc; else *p2 = 0; } else { *p1 = 0; *p2 = 0; } return c; } /* * Convert a UTF-8 byte string to a wide chararacter. Also get up to two * composing characters. Use no more than p[maxlen]. */ int utfc_ptr2char_len(p, p1, p2, maxlen) char_u *p; int *p1; /* return: first composing char or 0 */ int *p2; /* return: second composing char or 0 */ int maxlen; { int len; int c; int cc; c = utf_ptr2char(p); len = utf_ptr2len_check_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)) { *p1 = utf_ptr2char(p + len); len += utf_ptr2len_check_len(p + len, maxlen - len); if (len < maxlen && p[len] >= 0x80 && utf_iscomposing(cc = utf_ptr2char(p + len))) *p2 = cc; else *p2 = 0; } else { *p1 = 0; *p2 = 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. * Returns the produced number of bytes. */ int utfc_char2bytes(off, buf) int off; char_u *buf; { int len; len = utf_char2bytes(ScreenLinesUC[off], buf); if (ScreenLinesC1[off] != 0) { len += utf_char2bytes(ScreenLinesC1[off], buf + len); if (ScreenLinesC2[off] != 0) len += utf_char2bytes(ScreenLinesC2[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_check(p) 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! */ int utf_byte2len(b) 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. * Returns number > "size" for an incomplete byte sequence. */ int utf_ptr2len_check_len(p, size) char_u *p; int size; { int len; int i; if (*p == NUL) return 1; len = utf8len_tab[*p]; if (len > size) return len; /* incomplete byte sequence. */ for (i = 1; i < len; ++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_check(p) char_u *p; { int len; #ifdef FEAT_ARABIC int prevlen; #endif if (*p == NUL) return 0; if (p[0] < 0x80 && p[1] < 0x80) /* be quick for ASCII */ return 1; /* Skip over first UTF-8 char, stopping at a NUL byte. */ len = utf_ptr2len_check(p); /* Check for illegal byte. */ if (len == 1 && p[0] >= 0x80) return 1; /* * Check for composing characters. We can handle only the first two, 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_check(p + len); } } /* * Return the number of bytes the UTF-8 encoding of the character at "p[size]" * takes. This includes following composing characters. * Returns 1 for an illegal char or an incomplete byte sequence. */ int utfc_ptr2len_check_len(p, size) char_u *p; int size; { int len; #ifdef FEAT_ARABIC int prevlen; #endif if (*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_check_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 two, but * skip all of them (otherwise the cursor would get stuck). */ #ifdef FEAT_ARABIC prevlen = 0; #endif while (len < size) { if (p[len] < 0x80 || !UTF_COMPOSINGLIKE(p + prevlen, p + len)) break; /* Skip over composing char */ #ifdef FEAT_ARABIC prevlen = len; #endif len += utf_ptr2len_check_len(p + len, size - len); } return len; } /* * Return the number of bytes the UTF-8 encoding of character "c" takes. * This does not include composing characters. */ int utf_char2len(c) 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(c, buf) 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(c) int c; { /* sorted list of non-overlapping intervals */ static struct interval combining[] = { {0x0300, 0x034f}, {0x0360, 0x036f}, {0x0483, 0x0486}, {0x0488, 0x0489}, {0x0591, 0x05a1}, {0x05a3, 0x05b9}, {0x05bb, 0x05bd}, {0x05bf, 0x05bf}, {0x05c1, 0x05c2}, {0x05c4, 0x05c4}, {0x0610, 0x0615}, {0x064b, 0x0658}, {0x0670, 0x0670}, {0x06d6, 0x06dc}, {0x06de, 0x06e4}, {0x06e7, 0x06e8}, {0x06ea, 0x06ed}, {0x0711, 0x0711}, {0x0730, 0x074a}, {0x07a6, 0x07b0}, {0x0901, 0x0903}, {0x093c, 0x093c}, {0x093e, 0x094d}, {0x0951, 0x0954}, {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}, {0x0a70, 0x0a71}, {0x0a81, 0x0a83}, {0x0abc, 0x0abc}, {0x0abe, 0x0ac5}, {0x0ac7, 0x0ac9}, {0x0acb, 0x0acd}, {0x0ae2, 0x0ae3}, {0x0b01, 0x0b03}, {0x0b3c, 0x0b3c}, {0x0b3e, 0x0b43}, {0x0b47, 0x0b48}, {0x0b4b, 0x0b4d}, {0x0b56, 0x0b57}, {0x0b82, 0x0b82}, {0x0bbe, 0x0bc2}, {0x0bc6, 0x0bc8}, {0x0bca, 0x0bcd}, {0x0bd7, 0x0bd7}, {0x0c01, 0x0c03}, {0x0c3e, 0x0c44}, {0x0c46, 0x0c48}, {0x0c4a, 0x0c4d}, {0x0c55, 0x0c56}, {0x0c82, 0x0c83}, {0x0cbc, 0x0cbc}, {0x0cbe, 0x0cc4}, {0x0cc6, 0x0cc8}, {0x0cca, 0x0ccd}, {0x0cd5, 0x0cd6}, {0x0d02, 0x0d03}, {0x0d3e, 0x0d43}, {0x0d46, 0x0d48}, {0x0d4a, 0x0d4d}, {0x0d57, 0x0d57}, {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}, {0x0f90, 0x0f97}, {0x0f99, 0x0fbc}, {0x0fc6, 0x0fc6}, {0x102c, 0x1032}, {0x1036, 0x1039}, {0x1056, 0x1059}, {0x1712, 0x1714}, {0x1732, 0x1734}, {0x1752, 0x1753}, {0x1772, 0x1773}, {0x17b6, 0x17d3}, {0x17dd, 0x17dd}, {0x180b, 0x180d}, {0x18a9, 0x18a9}, {0x1920, 0x192b}, {0x1930, 0x193b}, {0x20d0, 0x20ea}, {0x302a, 0x302f}, {0x3099, 0x309a}, {0xfb1e, 0xfb1e}, {0xfe00, 0xfe0f}, {0xfe20, 0xfe23}, }; 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(c) 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 } /* * Get class of a Unicode character. * 0: white space * 1: punctuation * 2 or bigger: some class of word character. */ int utf_class(c) int c; { /* sorted list of non-overlapping intervals */ static struct clinterval { unsigned short first; unsigned short last; unsigned short 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, 0x208f, 0x2080}, /* subscript */ {0x2983, 0x2998, 1}, {0x29d8, 0x29db, 1}, {0x29fc, 0x29fd, 1}, {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 */ }; 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) 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 < c) bot = mid + 1; else if (classes[mid].first > c) top = mid - 1; else return (int)classes[mid].class; } /* most other characters are "word" characters */ return 2; } /* * 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. */ /* * The following table is built by foldExtract.pl < CaseFolding.txt . * It must be in numeric order, because we use binary search on it. * An entry such as {0x41,0x5a,1,32} means that UCS-4 characters in the range * from 0x41 to 0x5a inclusive, stepping by 1, are folded by adding 32. */ typedef struct { int rangeStart; int rangeEnd; int step; int offset; } convertStruct; static convertStruct foldCase[] = { {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}, {0x386,0x386,-1,38}, {0x388,0x38a,1,37}, {0x38c,0x38c,-1,64}, {0x38e,0x38f,1,63}, {0x391,0x3a1,1,32}, {0x3a3,0x3ab,1,32}, {0x3d8,0x3ee,2,1}, {0x3f4,0x3f4,-1,-60}, {0x3f7,0x3f7,-1,1}, {0x3f9,0x3f9,-1,-7}, {0x3fa,0x3fa,-1,1}, {0x400,0x40f,1,80}, {0x410,0x42f,1,32}, {0x460,0x480,2,1}, {0x48a,0x4be,2,1}, {0x4c1,0x4cd,2,1}, {0x4d0,0x4f4,2,1}, {0x4f8,0x500,8,1}, {0x502,0x50e,2,1}, {0x531,0x556,1,48}, {0x1e00,0x1e94,2,1}, {0x1ea0,0x1ef8,2,1}, {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}, {0x2160,0x216f,1,16}, {0x24b6,0x24cf,1,26}, {0xff21,0xff3a,1,32}, {0x10400,0x10427,1,40} }; static int utf_convert(int a, convertStruct table[], int tableSize); /* * 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(a, table, tableSize) int a; convertStruct table[]; int tableSize; { int start, mid, end; /* indices into table */ start = 0; end = tableSize / sizeof(convertStruct); while (start < end) { /* need to search further */ mid = (end + start) /2; if (table[mid].rangeEnd < a) start = mid + 1; else end = mid; } if (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(a) int a; { return utf_convert(a, foldCase, sizeof(foldCase)); } /* * The following tables are built by upperLowerExtract.pl < UnicodeData.txt . * They must be in numeric order, because we use binary search on them. * An entry such as {0x41,0x5a,1,32} means that UCS-4 characters in the range * from 0x41 to 0x5a inclusive, stepping by 1, are switched to lower (for * example) by adding 32. */ 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}, {0x1c4,0x1ca,3,2}, {0x1cd,0x1db,2,1}, {0x1de,0x1ee,2,1}, {0x1f1,0x1f1,-1,2}, {0x1f4,0x1f4,-1,1}, {0x1f6,0x1f6,-1,-97}, {0x1f7,0x1f7,-1,-56}, {0x1f8,0x21e,2,1}, {0x220,0x220,-1,-130}, {0x222,0x232,2,1}, {0x386,0x386,-1,38}, {0x388,0x38a,1,37}, {0x38c,0x38c,-1,64}, {0x38e,0x38f,1,63}, {0x391,0x3a1,1,32}, {0x3a3,0x3ab,1,32}, {0x3d8,0x3ee,2,1}, {0x3f4,0x3f4,-1,-60}, {0x3f7,0x3f7,-1,1}, {0x3f9,0x3f9,-1,-7}, {0x3fa,0x3fa,-1,1}, {0x400,0x40f,1,80}, {0x410,0x42f,1,32}, {0x460,0x480,2,1}, {0x48a,0x4be,2,1}, {0x4c1,0x4cd,2,1}, {0x4d0,0x4f4,2,1}, {0x4f8,0x500,8,1}, {0x502,0x50e,2,1}, {0x531,0x556,1,48}, {0x1e00,0x1e94,2,1}, {0x1ea0,0x1ef8,2,1}, {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}, {0x1fb8,0x1fb9,1,-8}, {0x1fba,0x1fbb,1,-74}, {0x1fc8,0x1fcb,1,-86}, {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}, {0x2126,0x2126,-1,-7517}, {0x212a,0x212a,-1,-8383}, {0x212b,0x212b,-1,-8262}, {0xff21,0xff3a,1,32}, {0x10400,0x10427,1,40} }; 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}, {0x183,0x185,2,-1}, {0x188,0x18c,4,-1}, {0x192,0x192,-1,-1}, {0x195,0x195,-1,97}, {0x199,0x199,-1,-1}, {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}, {0x1c5,0x1c6,1,-1}, {0x1c8,0x1c9,1,-1}, {0x1cb,0x1cc,1,-1}, {0x1ce,0x1dc,2,-1}, {0x1dd,0x1dd,-1,-79}, {0x1df,0x1ef,2,-1}, {0x1f2,0x1f3,1,-1}, {0x1f5,0x1f9,4,-1}, {0x1fb,0x21f,2,-1}, {0x223,0x233,2,-1}, {0x253,0x253,-1,-210}, {0x254,0x254,-1,-206}, {0x256,0x257,1,-205}, {0x259,0x259,-1,-202}, {0x25b,0x25b,-1,-203}, {0x260,0x260,-1,-205}, {0x263,0x263,-1,-207}, {0x268,0x268,-1,-209}, {0x269,0x26f,6,-211}, {0x272,0x272,-1,-213}, {0x275,0x275,-1,-214}, {0x280,0x283,3,-218}, {0x288,0x288,-1,-218}, {0x28a,0x28b,1,-217}, {0x292,0x292,-1,-219}, {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}, {0x3d9,0x3ef,2,-1}, {0x3f0,0x3f0,-1,-86}, {0x3f1,0x3f1,-1,-80}, {0x3f2,0x3f2,-1,7}, {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}, {0x4d1,0x4f5,2,-1}, {0x4f9,0x501,8,-1}, {0x503,0x50f,2,-1}, {0x561,0x586,1,-48}, {0x1e01,0x1e95,2,-1}, {0x1e9b,0x1e9b,-1,-59}, {0x1ea1,0x1ef9,2,-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}, {0xff41,0xff5a,1,-32}, {0x10428,0x1044f,1,-40} }; /* * Return the upper-case equivalent of "a", which is a UCS-4 character. Use * simple case folding. */ int utf_toupper(a) 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 availble 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, sizeof(toUpper)); } int utf_islower(a) int a; { return (utf_toupper(a) != a); } /* * Return the lower-case equivalent of "a", which is a UCS-4 character. Use * simple case folding. */ int utf_tolower(a) 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, sizeof(toLower)); } int utf_isupper(a) int a; { return (utf_tolower(a) != a); } /* * Version of strnicmp() that handles multi-byte characters. * Needed for Big5, Sjift-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(s1, s2, nn) char_u *s1, *s2; size_t nn; { int i, j, l; int cdiff; int n = nn; for (i = 0; i < n; i += l) { if (s1[i] == NUL && s2[i] == NUL) /* both strings end */ return 0; if (enc_utf8) { l = utf_byte2len(s1[i]); if (l > n - i) l = n - i; /* incomplete character */ /* Check directly first, it's faster. */ for (j = 0; j < l; ++j) if (s1[i + j] != s2[i + j]) break; if (j < l) { /* If one of the two characters is incomplete return -1. */ if (i + utf_byte2len(s1[i]) > n || i + utf_byte2len(s2[i]) > n) return -1; cdiff = utf_fold(utf_ptr2char(s1 + i)) - utf_fold(utf_ptr2char(s2 + i)); if (cdiff != 0) return cdiff; } } else { l = (*mb_ptr2len_check)(s1 + i); if (l <= 1) { /* Single byte: first check normally, then with ignore case. */ if (s1[i] != s2[i]) { cdiff = TOLOWER_LOC(s1[i]) - TOLOWER_LOC(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() { 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_check(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_check(line + i); } sprintf((char *)IObuff + rlen, "%02x ", line[i]); --clen; rlen += 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. * Returns 0 when already at the first byte of a character. */ /*ARGSUSED*/ int latin_head_off(base, p) char_u *base; char_u *p; { return 0; } int dbcs_head_off(base, p) 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) 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_check(q); return (q == p) ? 0 : 1; } #if defined(FEAT_CLIPBOARD) || defined(FEAT_GUI) || defined(FEAT_RIGHTLEFT) \ || defined(PROTO) /* * Special version of dbcs_head_off() that works for ScreenLines[], where * single-width DBCS_JPNU characters are stored separately. */ int dbcs_screen_head_off(base, p) 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) 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_check(q); } return (q == p) ? 0 : 1; } #endif int utf_head_off(base, p) char_u *base; char_u *p; { char_u *q; char_u *s; int c; #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. */ if (utf8len_tab[*q] != (int)(s - q + 1) && utf8len_tab[*q] != (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); } #if defined(FEAT_EVAL) || defined(PROTO) /* * Copy a character from "*fp" to "*tp" and advance the pointers. */ void mb_copy_char(fp, tp) char_u **fp; char_u **tp; { int l = (*mb_ptr2len_check)(*fp); mch_memmove(*tp, *fp, (size_t)l); *tp += l; *fp += l; } #endif /* * 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(base, p) 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(base, p) 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); } #if defined(HAVE_GTK2) || 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(s, end) char_u *s; char_u *end; { int l; char_u *p = s; while (end == NULL ? *p != NUL : p < end) { if ((*p & 0xc0) == 0x80) return FALSE; /* invalid lead byte */ l = utf8len_tab[*p]; 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(base, p) 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() { mb_adjustpos(&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(lp) pos_T *lp; { char_u *p; if (lp->col > 0 #ifdef FEAT_VIRTUALEDIT || lp->coladd > 1 #endif ) { p = ml_get(lp->lnum); 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(line, p) 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". multi-byte characters counts as one. */ int mb_charlen(str) char_u *str; { int count; if (str == NULL) return 0; for (count = 0; *str != NUL; count++) str += (*mb_ptr2len_check)(str); return count; } /* * 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(pp) char_u **pp; { static char_u buf[MB_MAXBYTES + 1]; int n, 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. */ for (n = 0; str[n] != NUL && m <= MB_MAXBYTES; ++n) { if (str[n] == K_SPECIAL && str[n + 1] == KS_SPECIAL && str[n + 2] == KE_FILLER) { buf[m++] = K_SPECIAL; n += 2; } # ifdef FEAT_GUI else if (str[n] == CSI && str[n + 1] == KS_EXTRA && str[n + 2] == (int)KE_CSI) { buf[m++] = CSI; n += 2; } # endif 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_check)(buf) > 1) { *pp = str + n + 1; return buf; } } 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(row, col) int row; int col; { #ifdef FEAT_HANGULIN if (composing_hangul) return TRUE; #endif if (enc_dbcs != 0) return dbcs_off2cells(LineOffset[row] + col) > 1; if (enc_utf8) return (col + 1 < Columns && ScreenLines[LineOffset[row] + col + 1] == 0); return FALSE; } # if defined(FEAT_CLIPBOARD) || defined(FEAT_GUI) || defined(FEAT_RIGHTLEFT) \ || defined(PROTO) /* * Correct a position on the screen, if it's the right halve of a double-wide * char move it to the left halve. Returns the corrected column. */ int mb_fix_col(col, row) 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))) --col; return col; } # endif #endif #if defined(FEAT_MBYTE) || defined(FEAT_POSTSCRIPT) || defined(PROTO) static int enc_alias_search __ARGS((char_u *name)); /* * Skip the Vim specific head of a 'encoding' name. */ char_u * enc_skip(p) 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(enc) 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 allocted 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); /* "iso8859" -> "iso-8859" */ if (STRNCMP(p, "iso8859", 7) == 0) { mch_memmove(p + 4, p + 3, STRLEN(p + 2)); p[3] = '-'; } /* "iso-8859n" -> "iso-8859-n" */ if (STRNCMP(p, "iso-8859", 8) == 0 && p[8] != '-') { mch_memmove(p + 9, p + 8, STRLEN(p + 7)); p[8] = '-'; } /* "latin-N" -> "latinN" */ if (STRNCMP(p, "latin-", 6) == 0) mch_memmove(p + 5, p + 6, STRLEN(p + 5)); if (enc_canon_search(p) >= 0) { /* canonical name can be used unmodified */ if (p != r) mch_memmove(r, p, STRLEN(p) + 1); } 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(name) 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() { #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) STRCPY(buf, "latin1"); else sprintf(buf, "cp%ld", acp); #else # ifdef HAVE_NL_LANGINFO_CODESET if ((s = nl_langinfo(CODESET)) == NULL || *s == NUL) # endif # ifdef MACOS s = "utf-8"; # else # 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"); # endif 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; s[i] != NUL && i < sizeof(buf) - 1; ++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) /* * Convert an encoding name to an MS-Windows codepage. * Returns zero if no codepage can be figured out. */ int encname2codepage(name) 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(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 __ARGS((vimconv_T *vcp, char_u *str, int slen, int *unconvlenp)); /* * 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(to, from) 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. */ static char_u * iconv_string(vcp, str, slen, unconvlenp) vimconv_T *vcp; char_u *str; int slen; int *unconvlenp; { 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 = 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_check_len((char_u *)from, fromlen); else { l = (*mb_ptr2len_check)((char_u *)from); if (l > (int)fromlen) l = 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; } return result; } # if defined(DYNAMIC_ICONV) || defined(PROTO) /* * Dynamically load the "iconv.dll" on Win32. */ #ifndef DYNAMIC_ICONV /* just 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_ALT "libiconv.dll" # endif # ifndef DYNAMIC_MSVCRT_DLL # define DYNAMIC_MSVCRT_DLL "msvcrt.dll" # endif /* * Try opening the iconv.dll and return TRUE if iconv() can be used. */ int iconv_enabled(verbose) int verbose; { if (hIconvDLL != 0 && hMsvcrtDLL != 0) return TRUE; hIconvDLL = LoadLibrary(DYNAMIC_ICONV_DLL); if (hIconvDLL == 0) /* sometimes it's called libiconv.dll */ hIconvDLL = LoadLibrary(DYNAMIC_ICONV_DLL_ALT); if (hIconvDLL != 0) hMsvcrtDLL = LoadLibrary(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; } *((FARPROC*)&iconv) = GetProcAddress(hIconvDLL, "libiconv"); *((FARPROC*)&iconv_open) = GetProcAddress(hIconvDLL, "libiconv_open"); *((FARPROC*)&iconv_close) = GetProcAddress(hIconvDLL, "libiconv_close"); *((FARPROC*)&iconvctl) = GetProcAddress(hIconvDLL, "libiconvctl"); *((FARPROC*)&iconv_errno) = 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() { /* 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) # ifdef FEAT_GUI_GTK 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) 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; } # endif # if defined(HAVE_GTK2) && !defined(PROTO) static int im_is_active = FALSE; /* IM is enabled for current mode */ 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_is_active; 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)); } 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; setcursor(); out_flush(); } /* * Callback invoked when the user finished preediting. * Put the final string into the input buffer. */ /*ARGSUSED0*/ static void im_commit_cb(GtkIMContext *context, const gchar *str, gpointer data) { int slen = (int)STRLEN(str); int add_to_input = TRUE; int clen; int len = slen; int commit_with_preedit = TRUE; char_u *im_str, *p; #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 forcely 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 = 0; for (p = im_str; p < im_str + len; p += (*mb_ptr2len_check)(p)) clen += (*mb_ptr2cells)(p); 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. */ /*ARGSUSED*/ static void im_preedit_start_cb(GtkIMContext *context, gpointer data) { #ifdef XIM_DEBUG xim_log("im_preedit_start_cb()\n"); #endif im_is_active = TRUE; gui_update_cursor(TRUE, FALSE); } /* * Callback invoked after end to the preedit. */ /*ARGSUSED*/ static void im_preedit_end_cb(GtkIMContext *context, gpointer data) { #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; im_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. */ /*ARGSUSED1*/ static void im_preedit_changed_cb(GtkIMContext *context, gpointer data) { 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') { if (preedit_start_col == MAXCOL) 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 index; /* Get the byte index as used by PangoAttrIterator */ for (index = 0; col > 0 && preedit_string[index] != '\0'; --col) index += utfc_ptr2len_check((char_u *)preedit_string + index); if (preedit_string[index] != '\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 (index >= start && index < 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); g_return_if_fail(gui.drawarea->window != NULL); 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); gtk_im_context_set_client_window(xic, gui.drawarea->window); } 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); g_object_ref(gui.drawarea->window); /* unreffed by gdk_event_free() */ # else event = (GdkEventKey *)g_malloc0((gulong)sizeof(GdkEvent)); event->type = GDK_KEY_PRESS; # endif event->window = gui.drawarea->window; 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) { /* * The third-party imhangul module (and maybe others too) ignores * gtk_im_context_reset() or at least doesn't reset the active state. * Thus sending imactivatekey would turn it off if it was on before, * which is clearly not what we want. Fortunately we can work around * that for imhangul by sending GDK_Escape, but I don't know if it * works with all IM modules that support an activation key :/ * * An alternative approach would be to destroy the IM context and * recreate it. But that means loading/unloading the IM module on * every mode switch, which causes a quite noticable delay even on * my rather fast box... * * * Moreover, there are some XIM which cannot respond to * im_synthesize_keypress(). we hope that they reset by * xim_shutdown(). */ if (im_activatekey_keyval != GDK_VoidSymbol && im_is_active) im_synthesize_keypress(GDK_Escape, 0U); gtk_im_context_reset(xic); /* * HACK for Ami: This sequence of function calls makes Ami handle * the IM reset gratiously, without breaking loads of other stuff. * It seems to force English mode as well, which is exactly what we * want because it makes the Ami status display work reliably. */ gtk_im_context_set_use_preedit(xic, FALSE); if (p_imdisable) im_shutdown(); else { gtk_im_context_set_use_preedit(xic, TRUE); xim_set_focus(gui.in_focus); 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. */ 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; 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)) { 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; /* Normal processing */ return imresult; } } return FALSE; } int im_get_status(void) { return im_is_active; } # else /* !HAVE_GTK2 */ 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 #ifdef FEAT_GUI_GTK # ifdef WIN3264 # include <gdk/gdkwin32.h> # else # include <gdk/gdkx.h> # endif #else # ifdef PROTO /* Define a few things to be able to generate prototypes while not configured * for GTK. */ # define GSList int # define gboolean int typedef int GdkEvent; typedef int GdkEventKey; # define GdkIC int # endif #endif #if defined(FEAT_GUI_GTK) || defined(PROTO) || defined(FEAT_GUI_KDE) static int preedit_buf_len = 0; static int xim_can_preediting INIT(= FALSE); /* XIM in showmode() */ static int xim_input_style; #ifndef FEAT_GUI_GTK # define gboolean int #endif static gboolean use_status_area = 0; static int im_xim_str2keycode __ARGS((unsigned int *code, unsigned int *state)); static void im_xim_send_event_imactivate __ARGS((void)); /* * Convert string to keycode and state for XKeyEvent. * When string is valid return OK, when invalid return FAIL. * * See 'imactivatekey' documentation for the format. */ static int im_xim_str2keycode(code, state) unsigned int *code; unsigned int *state; { int retval = OK; int len; unsigned keycode = 0, keystate = 0; Window window; Display *display; char_u *flag_end; char_u *str; if (*p_imak != NUL) { len = STRLEN(p_imak); for (flag_end = p_imak + len - 1; flag_end > p_imak && *flag_end != '-'; --flag_end) ; /* Parse modifier keys */ for (str = p_imak; str < flag_end; ++str) { switch (*str) { case 's': case 'S': keystate |= ShiftMask; break; case 'l': case 'L': keystate |= LockMask; break; case 'c': case 'C': keystate |= ControlMask; break; case '1': keystate |= Mod1Mask; break; case '2': keystate |= Mod2Mask; break; case '3': keystate |= Mod3Mask; break; case '4': keystate |= Mod4Mask; break; case '5': keystate |= Mod5Mask; break; case '-': break; default: retval = FAIL; } } if (*str == '-') ++str; /* Get keycode from string. */ gui_get_x11_windis(&window, &display); if (display) keycode = XKeysymToKeycode(display, XStringToKeysym((char *)str)); if (keycode == 0) retval = FAIL; if (code != NULL) *code = keycode; if (state != NULL) *state = keystate; } return retval; } static void im_xim_send_event_imactivate() { /* Force turn on preedit state by symulate keypress event. * Keycode and state is specified by 'imactivatekey'. */ XKeyEvent ev; gui_get_x11_windis(&ev.window, &ev.display); ev.root = RootWindow(ev.display, DefaultScreen(ev.display)); ev.subwindow = None; ev.time = CurrentTime; ev.x = 1; ev.y = 1; ev.x_root = 1; ev.y_root = 1; ev.same_screen = 1; ev.type = KeyPress; if (im_xim_str2keycode(&ev.keycode, &ev.state) == OK) XSendEvent(ev.display, ev.window, 1, KeyPressMask, (XEvent*)&ev); } /* * Return TRUE if 'imactivatekey' has a valid value. */ int im_xim_isvalid_imactivate() { return im_xim_str2keycode(NULL, NULL) == OK; } #endif /* FEAT_GUI_GTK */ /* * Switch using XIM on/off. This is used by the code that changes "State". */ void im_set_active(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) && !defined (FEAT_GUI_KDE) 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; #ifdef FEAT_GUI_GTK /* When 'imactivatekey' has valid key-string, try to control XIM preedit * state. When 'imactivatekey' has no or invalid string, try old XIM * focus control. */ if (*p_imak != NUL) { /* BASIC STRATEGY: * Destroy old Input Context (XIC), and create new one. New XIC * would have a state of preedit that is off. When argument:active * is false, that's all. Else argument:active is true, send a key * event specified by 'imactivatekey' to activate XIM preedit state. */ xim_is_active = TRUE; /* Disable old XIM focus control */ /* If we can monitor preedit state with preedit callback functions, * try least creation of new XIC. */ if (xim_input_style & (int)GDK_IM_PREEDIT_CALLBACKS) { if (xim_can_preediting && !active) { /* Force turn off preedit state. With some IM * implementations, we cannot turn off preedit state by * symulate keypress event. It is why using such a method * that destroy old IC (input context), and create new one. * When create new IC, its preedit state is usually off. */ xim_reset(); xim_set_focus(FALSE); gdk_ic_destroy(xic); xim_init(); xim_can_preediting = FALSE; } else if (!xim_can_preediting && active) im_xim_send_event_imactivate(); } else { /* First, force destroy old IC, and create new one. It * symulates "turning off preedit state". */ xim_set_focus(FALSE); gdk_ic_destroy(xic); xim_init(); xim_can_preediting = FALSE; /* 2nd, when requested to activate IM, symulate this by sending * the event. */ if (active) { im_xim_send_event_imactivate(); xim_can_preediting = TRUE; } } } else { # ifndef XIMPreeditUnKnown /* X11R5 doesn't have these, it looks safe enough to define here. */ typedef unsigned long XIMPreeditState; # define XIMPreeditUnKnown 0L # define XIMPreeditEnable 1L # define XIMPreeditDisable (1L<<1) # define XNPreeditState "preeditState" # endif XIMPreeditState preedit_state = XIMPreeditUnKnown; XVaNestedList preedit_attr; XIC pxic; preedit_attr = XVaCreateNestedList(0, XNPreeditState, &preedit_state, NULL); pxic = ((GdkICPrivate *)xic)->xic; if (!XGetICValues(pxic, XNPreeditAttributes, preedit_attr, NULL)) { XFree(preedit_attr); preedit_attr = XVaCreateNestedList(0, XNPreeditState, active ? XIMPreeditEnable : XIMPreeditDisable, NULL); XSetICValues(pxic, XNPreeditAttributes, preedit_attr, NULL); xim_can_preediting = active; xim_is_active = active; } XFree(preedit_attr); } if (xim_input_style & XIMPreeditCallbacks) { preedit_buf_len = 0; init_preedit_start_col(); } #else # if 0 /* When had tested kinput2 + canna + Athena GUI version with * 'imactivatekey' is "s-space", im_xim_send_event_imactivate() did not * work correctly. It just inserted one space. I don't know why we * couldn't switch state of XIM preediting. This is reason why these * codes are commented out. */ /* First, force destroy old IC, and create new one. It symulates * "turning off preedit state". */ xim_set_focus(FALSE); XDestroyIC(xic); xic = NULL; xim_init(); /* 2nd, when requested to activate IM, symulate this by sending the * event. */ if (active) im_xim_send_event_imactivate(); # endif #endif xim_set_preedit(); } /* * Adjust using XIM for gaining or losing keyboard focus. Also called when * "xim_is_active" changes. */ void xim_set_focus(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; #ifdef FEAT_GUI_GTK gdk_im_begin(xic, gui.drawarea->window); #else XSetICFocus(xic); #endif } } else { if (xim_has_focus) { xim_has_focus = FALSE; #ifdef FEAT_GUI_GTK gdk_im_end(); #else XUnsetICFocus(xic); #endif } } } #ifndef FEAT_GUI_KDE /*ARGSUSED*/ void im_set_position(row, col) int row; int col; { xim_set_preedit(); } #endif /* * Set the XIM to the current cursor position. */ void xim_set_preedit() { if (xic == NULL) return; xim_set_focus(TRUE); #ifdef FEAT_GUI_GTK if (gdk_im_ready()) { int attrmask; GdkICAttr *attr; if (!xic_attr) return; attr = xic_attr; attrmask = 0; # ifdef FEAT_XFONTSET if ((xim_input_style & (int)GDK_IM_PREEDIT_POSITION) && gui.fontset != NOFONTSET && gui.fontset->type == GDK_FONT_FONTSET) { if (!xim_has_focus) { if (attr->spot_location.y >= 0) { attr->spot_location.x = 0; attr->spot_location.y = -100; attrmask |= (int)GDK_IC_SPOT_LOCATION; } } else { gint width, height; if (attr->spot_location.x != TEXT_X(gui.col) || attr->spot_location.y != TEXT_Y(gui.row)) { attr->spot_location.x = TEXT_X(gui.col); attr->spot_location.y = TEXT_Y(gui.row); attrmask |= (int)GDK_IC_SPOT_LOCATION; } gdk_window_get_size(gui.drawarea->window, &width, &height); width -= 2 * gui.border_offset; height -= 2 * gui.border_offset; if (xim_input_style & (int)GDK_IM_STATUS_AREA) height -= gui.char_height; if (attr->preedit_area.width != width || attr->preedit_area.height != height) { attr->preedit_area.x = gui.border_offset; attr->preedit_area.y = gui.border_offset; attr->preedit_area.width = width; attr->preedit_area.height = height; attrmask |= (int)GDK_IC_PREEDIT_AREA; } if (attr->preedit_fontset != gui.current_font) { attr->preedit_fontset = gui.current_font; attrmask |= (int)GDK_IC_PREEDIT_FONTSET; } } } # endif /* FEAT_XFONTSET */ if (xim_fg_color == INVALCOLOR) { xim_fg_color = gui.def_norm_pixel; xim_bg_color = gui.def_back_pixel; } if (attr->preedit_foreground.pixel != xim_fg_color) { attr->preedit_foreground.pixel = xim_fg_color; attrmask |= (int)GDK_IC_PREEDIT_FOREGROUND; } if (attr->preedit_background.pixel != xim_bg_color) { attr->preedit_background.pixel = xim_bg_color; attrmask |= (int)GDK_IC_PREEDIT_BACKGROUND; } if (attrmask != 0) gdk_ic_set_attr(xic, attr, (GdkICAttributesType)attrmask); } #else /* FEAT_GUI_GTK */ # ifdef FEAT_GUI_KDE # else { XVaNestedList attr_list; XRectangle spot_area; XPoint over_spot; int line_space; 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); } } # endif /* FEAT_GUI_KDE */ #endif /* FEAT_GUI_GTK */ } /* * 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() { if (xic == NULL) return; #ifdef FEAT_GUI_GTK # if defined(FEAT_XFONTSET) if (use_status_area) { GdkICAttr *attr; int style; gint width, height; GtkWidget *widget; int attrmask; if (!xic_attr) return; attr = xic_attr; attrmask = 0; style = (int)gdk_ic_get_style(xic); if ((style & (int)GDK_IM_STATUS_MASK) == (int)GDK_IM_STATUS_AREA) { if (gui.fontset != NOFONTSET && gui.fontset->type == GDK_FONT_FONTSET) { widget = gui.mainwin; gdk_window_get_size(widget->window, &width, &height); attrmask |= (int)GDK_IC_STATUS_AREA; attr->status_area.x = 0; attr->status_area.y = height - gui.char_height - 1; attr->status_area.width = width; attr->status_area.height = gui.char_height; } } if (attrmask != 0) gdk_ic_set_attr(xic, attr, (GdkICAttributesType)attrmask); } # endif #else # ifdef FEAT_GUI_KDE # else { XVaNestedList preedit_list = 0, status_list = 0, list = 0; XRectangle pre_area, status_area; 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); } # endif /* FEAT_GUI_KDE */ #endif } #if defined(FEAT_GUI_X11) || defined(FEAT_GUI_GTK) || defined(FEAT_GUI_KDE) 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 __ARGS((Window x11_window, Display *x11_display)); #ifdef USE_X11R6_XIM static void xim_instantiate_cb __ARGS((Display *display, XPointer client_data, XPointer call_data)); static void xim_destroy_cb __ARGS((XIM im, XPointer client_data, XPointer call_data)); /*ARGSUSED*/ static void xim_instantiate_cb(display, client_data, call_data) Display *display; XPointer client_data; XPointer call_data; { 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); if (xic != NULL) XUnregisterIMInstantiateCallback(x11_display, NULL, NULL, NULL, xim_instantiate_cb, NULL); } /*ARGSUSED*/ static void xim_destroy_cb(im, client_data, call_data) XIM im; XPointer client_data; XPointer call_data; { 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); XRegisterIMInstantiateCallback(x11_display, NULL, NULL, NULL, xim_instantiate_cb, NULL); } #endif void xim_init() { 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); #ifdef USE_X11R6_XIM XRegisterIMInstantiateCallback(x11_display, NULL, NULL, NULL, xim_instantiate_cb, NULL); #endif } static int xim_real_init(x11_window, x11_display) 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); } else { EMSG(_(e_xim)); XCloseIM(xim); return FALSE; } return TRUE; } #endif /* FEAT_GUI_X11 */ #if defined(FEAT_GUI_GTK) || defined(PROTO) # ifdef FEAT_XFONTSET static char e_overthespot[] = N_("E290: over-the-spot style requires fontset"); # endif # ifdef PROTO typedef int GdkIC; # endif void xim_decide_input_style() { /* GDK_IM_STATUS_CALLBACKS was disabled, enabled it to allow Japanese * OverTheSpot. */ int supported_style = (int)GDK_IM_PREEDIT_NONE | (int)GDK_IM_PREEDIT_NOTHING | (int)GDK_IM_PREEDIT_POSITION | (int)GDK_IM_PREEDIT_CALLBACKS | (int)GDK_IM_STATUS_CALLBACKS | (int)GDK_IM_STATUS_AREA | (int)GDK_IM_STATUS_NONE | (int)GDK_IM_STATUS_NOTHING; #ifdef XIM_DEBUG xim_log("xim_decide_input_style()\n"); #endif if (!gdk_im_ready()) xim_input_style = 0; else { if (gtk_major_version > 1 || (gtk_major_version == 1 && (gtk_minor_version > 2 || (gtk_minor_version == 2 && gtk_micro_version >= 3)))) use_status_area = TRUE; else { EMSG(_("E291: Your GTK+ is older than 1.2.3. Status area disabled")); use_status_area = FALSE; } #ifdef FEAT_XFONTSET if (gui.fontset == NOFONTSET || gui.fontset->type != GDK_FONT_FONTSET) #endif supported_style &= ~((int)GDK_IM_PREEDIT_POSITION | (int)GDK_IM_STATUS_AREA); if (!use_status_area) supported_style &= ~(int)GDK_IM_STATUS_AREA; xim_input_style = (int)gdk_im_decide_style((GdkIMStyle)supported_style); } } /*ARGSUSED*/ static void preedit_start_cbproc(XIC xic, XPointer client_data, XPointer call_data) { #ifdef XIM_DEBUG xim_log("xim_decide_input_style()\n"); #endif draw_feedback = NULL; xim_can_preediting = TRUE; xim_has_preediting = TRUE; gui_update_cursor(TRUE, FALSE); if (showmode() > 0) { setcursor(); out_flush(); } } static void xim_back_delete(int n) { char_u str[3]; str[0] = CSI; str[1] = 'k'; str[2] = 'b'; while (n-- > 0) add_to_input_buf(str, 3); } static GSList *key_press_event_queue = NULL; static gboolean processing_queued_event = FALSE; /*ARGSUSED*/ static void preedit_draw_cbproc(XIC xic, XPointer client_data, XPointer call_data) { XIMPreeditDrawCallbackStruct *draw_data; XIMText *text; char *src; GSList *event_queue; #ifdef XIM_DEBUG xim_log("preedit_draw_cbproc()\n"); #endif draw_data = (XIMPreeditDrawCallbackStruct *) call_data; text = (XIMText *) draw_data->text; if ((text == NULL && draw_data->chg_length == preedit_buf_len) || preedit_buf_len == 0) { init_preedit_start_col(); vim_free(draw_feedback); draw_feedback = NULL; } if (draw_data->chg_length > 0) { int bs_cnt; if (draw_data->chg_length > preedit_buf_len) bs_cnt = preedit_buf_len; else bs_cnt = draw_data->chg_length; xim_back_delete(bs_cnt); preedit_buf_len -= bs_cnt; } if (text != NULL) { int len; #ifdef FEAT_MBYTE char_u *buf = NULL; unsigned int nfeedback = 0; #endif char_u *ptr; src = text->string.multi_byte; if (src != NULL && !text->encoding_is_wchar) { len = strlen(src); ptr = (char_u *)src; /* Avoid the enter for decision */ if (*ptr == '\n') return; #ifdef FEAT_MBYTE if (input_conv.vc_type != CONV_NONE && (buf = string_convert(&input_conv, (char_u *)src, &len)) != NULL) { /* Converted from 'termencoding' to 'encoding'. */ add_to_input_buf_csi(buf, len); ptr = buf; } else #endif add_to_input_buf_csi((char_u *)src, len); /* Add count of character to preedit_buf_len */ while (*ptr != NUL) { #ifdef FEAT_MBYTE if (draw_data->text->feedback != NULL) { if (draw_feedback == NULL) draw_feedback = (char *)alloc(draw_data->chg_first + text->length); else draw_feedback = realloc(draw_feedback, draw_data->chg_first + text->length); if (draw_feedback != NULL) { draw_feedback[nfeedback + draw_data->chg_first] = draw_data->text->feedback[nfeedback]; nfeedback++; } } if (has_mbyte) ptr += mb_ptr2len_check(ptr); else #endif ptr++; preedit_buf_len++; } #ifdef FEAT_MBYTE vim_free(buf); #endif preedit_end_col = MAXCOL; } } if (text != NULL || draw_data->chg_length > 0) { event_queue = key_press_event_queue; processing_queued_event = TRUE; while (event_queue != NULL && processing_queued_event) { GdkEvent *ev = event_queue->data; gboolean *ret; gtk_signal_emit_by_name((GtkObject*)gui.mainwin, "key_press_event", ev, &ret); gdk_event_free(ev); event_queue = event_queue->next; } processing_queued_event = FALSE; if (key_press_event_queue) { g_slist_free(key_press_event_queue); key_press_event_queue = NULL; } } if (gtk_main_level() > 0) gtk_main_quit(); } /* * 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) { if (draw_feedback != NULL && col < preedit_buf_len) { if (draw_feedback[col] & XIMReverse) return HL_INVERSE; else if (draw_feedback[col] & XIMUnderline) return HL_UNDERLINE; else return hl_attr(HLF_V); } return -1; } /*ARGSUSED*/ static void preedit_caret_cbproc(XIC xic, XPointer client_data, XPointer call_data) { #ifdef XIM_DEBUG xim_log("preedit_caret_cbproc()\n"); #endif } /*ARGSUSED*/ static void preedit_done_cbproc(XIC xic, XPointer client_data, XPointer call_data) { #ifdef XIM_DEBUG xim_log("preedit_done_cbproc()\n"); #endif vim_free(draw_feedback); draw_feedback = NULL; xim_can_preediting = FALSE; xim_has_preediting = FALSE; gui_update_cursor(TRUE, FALSE); if (showmode() > 0) { setcursor(); out_flush(); } } void xim_reset(void) { char *text; #ifdef XIM_DEBUG xim_log("xim_reset()\n"); #endif if (xic != NULL) { text = XmbResetIC(((GdkICPrivate *)xic)->xic); if (text != NULL && !(xim_input_style & (int)GDK_IM_PREEDIT_CALLBACKS)) add_to_input_buf_csi((char_u *)text, strlen(text)); else preedit_buf_len = 0; if (text != NULL) XFree(text); } } /*ARGSUSED*/ int xim_queue_key_press_event(GdkEventKey *event, int down) { #ifdef XIM_DEBUG xim_log("xim_queue_key_press_event()\n"); #endif if (preedit_buf_len <= 0) return FALSE; if (processing_queued_event) processing_queued_event = FALSE; key_press_event_queue = g_slist_append(key_press_event_queue, gdk_event_copy((GdkEvent *)event)); return TRUE; } /*ARGSUSED*/ static void preedit_callback_setup(GdkIC *ic) { XIC xxic; XVaNestedList preedit_attr; XIMCallback preedit_start_cb; XIMCallback preedit_draw_cb; XIMCallback preedit_caret_cb; XIMCallback preedit_done_cb; xxic = ((GdkICPrivate*)xic)->xic; preedit_start_cb.callback = (XIMProc)preedit_start_cbproc; preedit_draw_cb.callback = (XIMProc)preedit_draw_cbproc; preedit_caret_cb.callback = (XIMProc)preedit_caret_cbproc; preedit_done_cb.callback = (XIMProc)preedit_done_cbproc; preedit_attr = XVaCreateNestedList (0, XNPreeditStartCallback, &preedit_start_cb, XNPreeditDrawCallback, &preedit_draw_cb, XNPreeditCaretCallback, &preedit_caret_cb, XNPreeditDoneCallback, &preedit_done_cb, 0); XSetICValues (xxic, XNPreeditAttributes, preedit_attr, 0); XFree(preedit_attr); } /*ARGSUSED*/ static void reset_state_setup(GdkIC *ic) { #ifdef USE_X11R6_XIM /* don't change the input context when we call reset */ XSetICValues(((GdkICPrivate*)ic)->xic, XNResetState, XIMPreserveState, 0); #endif } void xim_init(void) { #ifdef XIM_DEBUG xim_log("xim_init()\n"); #endif xic = NULL; xic_attr = NULL; if (!gdk_im_ready()) { if (p_verbose > 0) { verbose_enter(); EMSG(_("E292: Input Method Server is not running")); verbose_leave(); } return; } if ((xic_attr = gdk_ic_attr_new()) != NULL) { #ifdef FEAT_XFONTSET gint width, height; #endif int mask; GdkColormap *colormap; GdkICAttr *attr = xic_attr; int attrmask = (int)GDK_IC_ALL_REQ; GtkWidget *widget = gui.drawarea; attr->style = (GdkIMStyle)xim_input_style; attr->client_window = gui.mainwin->window; if ((colormap = gtk_widget_get_colormap(widget)) != gtk_widget_get_default_colormap()) { attrmask |= (int)GDK_IC_PREEDIT_COLORMAP; attr->preedit_colormap = colormap; } attrmask |= (int)GDK_IC_PREEDIT_FOREGROUND; attrmask |= (int)GDK_IC_PREEDIT_BACKGROUND; attr->preedit_foreground = widget->style->fg[GTK_STATE_NORMAL]; attr->preedit_background = widget->style->base[GTK_STATE_NORMAL]; #ifdef FEAT_XFONTSET if ((xim_input_style & (int)GDK_IM_PREEDIT_MASK) == (int)GDK_IM_PREEDIT_POSITION) { if (gui.fontset == NOFONTSET || gui.fontset->type != GDK_FONT_FONTSET) { EMSG(_(e_overthespot)); } else { gdk_window_get_size(widget->window, &width, &height); attrmask |= (int)GDK_IC_PREEDIT_POSITION_REQ; attr->spot_location.x = TEXT_X(0); attr->spot_location.y = TEXT_Y(0); attr->preedit_area.x = gui.border_offset; attr->preedit_area.y = gui.border_offset; attr->preedit_area.width = width - 2*gui.border_offset; attr->preedit_area.height = height - 2*gui.border_offset; attr->preedit_fontset = gui.fontset; } } if ((xim_input_style & (int)GDK_IM_STATUS_MASK) == (int)GDK_IM_STATUS_AREA) { if (gui.fontset == NOFONTSET || gui.fontset->type != GDK_FONT_FONTSET) { EMSG(_(e_overthespot)); } else { gdk_window_get_size(gui.mainwin->window, &width, &height); attrmask |= (int)GDK_IC_STATUS_AREA_REQ; attr->status_area.x = 0; attr->status_area.y = height - gui.char_height - 1; attr->status_area.width = width; attr->status_area.height = gui.char_height; attr->status_fontset = gui.fontset; } } else if ((xim_input_style & (int)GDK_IM_STATUS_MASK) == (int)GDK_IM_STATUS_CALLBACKS) { /* FIXME */ } #endif xic = gdk_ic_new(attr, (GdkICAttributesType)attrmask); if (xic == NULL) EMSG(_(e_xim)); else { mask = (int)gdk_window_get_events(widget->window); mask |= (int)gdk_ic_get_events(xic); gdk_window_set_events(widget->window, (GdkEventMask)mask); if (xim_input_style & (int)GDK_IM_PREEDIT_CALLBACKS) preedit_callback_setup(xic); reset_state_setup(xic); } } } void im_shutdown(void) { #ifdef XIM_DEBUG xim_log("im_shutdown()\n"); #endif if (xic != NULL) { gdk_im_end(); gdk_ic_destroy(xic); xic = NULL; } xim_is_active = FALSE; xim_can_preediting = FALSE; preedit_start_col = MAXCOL; xim_has_preediting = FALSE; } #endif /* FEAT_GUI_GTK */ int xim_get_status_area_height() { #ifdef FEAT_GUI_GTK if (xim_input_style & (int)GDK_IM_STATUS_AREA) return gui.char_height; #else # if defined FEAT_GUI_KDE /* always return zero? */ # else if (status_area_enabled) return gui.char_height; # endif #endif return 0; } /* * 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() { # ifdef FEAT_GUI_GTK if (xim_input_style & (int)GDK_IM_PREEDIT_CALLBACKS) return xim_can_preediting; # endif # ifdef FEAT_GUI_KDE if (preedit_start_col != MAXCOL) return TRUE; # endif return xim_has_focus; } # endif /* !HAVE_GTK2 */ # if defined(FEAT_GUI_GTK) || defined(PROTO) int im_is_preediting() { return xim_has_preediting; } # 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(vcp, from, to) vimconv_T *vcp; char_u *from; char_u *to; { int from_prop; int to_prop; /* 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_prop & ENC_LATIN1) && (to_prop & ENC_UNICODE)) { /* 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_prop & ENC_UNICODE)) { /* 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_prop & ENC_UNICODE) && (to_prop & ENC_LATIN1)) { /* Internal utf-8 -> latin1 conversion. */ vcp->vc_type = CONV_TO_LATIN1; } else if ((from_prop & ENC_UNICODE) && (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_prop & ENC_UNICODE) || encname2codepage(from) > 0) && ((to_prop & ENC_UNICODE) || encname2codepage(to) > 0)) { vcp->vc_type = CONV_CODEPAGE; vcp->vc_factor = 2; /* up to twice as long */ vcp->vc_cpfrom = (from_prop & ENC_UNICODE) ? 0 : encname2codepage(from); vcp->vc_cpto = (to_prop & ENC_UNICODE) ? 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_prop & ENC_UNICODE)) { 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_prop & ENC_UNICODE) && (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_prop & ENC_UNICODE) ? (char_u *)"utf-8" : to, (from_prop & ENC_UNICODE) ? (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(MSDOS) || 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(ptr, len, maxlen) 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(ptr, len, maxlen, restp, restlenp) 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; } #if defined(MACOS_X) /* This is in os_mac_conv.c. */ extern char_u *mac_string_convert __ARGS((char_u *ptr, int len, int *lenp, int fail_on_error, int from, int to, int *unconvlenp)); #endif /* * 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(vcp, ptr, lenp) 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(vcp, ptr, lenp, unconvlenp) 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_check(ptr + i); if (l == 0) *d++ = NUL; else if (l == 1) { if (unconvlenp != NULL && utf8len_tab[ptr[i]] > 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_X 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); if (retval != NULL && lenp != NULL) *lenp = (int)STRLEN(retval); 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_ucs2(ptr, len, NULL, NULL); else tmp_len = MultiByteToWideChar(vcp->vc_cpfrom, 0, ptr, len, 0, 0); tmp = (short_u *)alloc(sizeof(short_u) * tmp_len); if (tmp == NULL) break; if (vcp->vc_cpfrom == 0) utf8_to_ucs2(ptr, len, tmp, unconvlenp); else MultiByteToWideChar(vcp->vc_cpfrom, 0, ptr, len, tmp, tmp_len); /* 2. ucs-2 -> codepage/UTF-8. */ if (vcp->vc_cpto == 0) retlen = ucs2_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) ucs2_to_utf8(tmp, tmp_len, retval); else WideCharToMultiByte(vcp->vc_cpto, 0, tmp, tmp_len, retval, retlen, 0, 0); retval[retlen] = NUL; if (lenp != NULL) *lenp = retlen; } vim_free(tmp); break; } # endif } return retval; } #endif