charset.c revision 170256
160786Sps/* 2170256Sdelphij * Copyright (C) 1984-2007 Mark Nudelman 360786Sps * 460786Sps * You may distribute under the terms of either the GNU General Public 560786Sps * License or the Less License, as specified in the README file. 660786Sps * 760786Sps * For more information about less, or for information on how to 860786Sps * contact the author, see the README file. 960786Sps */ 1060786Sps 1160786Sps 1260786Sps/* 1360786Sps * Functions to define the character set 1460786Sps * and do things specific to the character set. 1560786Sps */ 1660786Sps 1760786Sps#include "less.h" 1860786Sps#if HAVE_LOCALE 1960786Sps#include <locale.h> 2060786Sps#include <ctype.h> 21161475Sdelphij#include <langinfo.h> 2260786Sps#endif 2360786Sps 24161475Sdelphij#include "charset.h" 25161475Sdelphij 2660786Spspublic int utf_mode = 0; 2760786Sps 2860786Sps/* 2960786Sps * Predefined character sets, 3060786Sps * selected by the LESSCHARSET environment variable. 3160786Sps */ 3260786Spsstruct charset { 3360786Sps char *name; 3460786Sps int *p_flag; 3560786Sps char *desc; 3660786Sps} charsets[] = { 37161475Sdelphij { "ascii", NULL, "8bcccbcc18b95.b" }, 38161475Sdelphij { "utf-8", &utf_mode, "8bcccbcc18b95.b126.bb" }, 39161475Sdelphij { "iso8859", NULL, "8bcccbcc18b95.33b." }, 40161475Sdelphij { "latin3", NULL, "8bcccbcc18b95.33b5.b8.b15.b4.b12.b18.b12.b." }, 41161475Sdelphij { "arabic", NULL, "8bcccbcc18b95.33b.3b.7b2.13b.3b.b26.5b19.b" }, 42161475Sdelphij { "greek", NULL, "8bcccbcc18b95.33b4.2b4.b3.b35.b44.b" }, 43161475Sdelphij { "greek2005", NULL, "8bcccbcc18b95.33b14.b35.b44.b" }, 44161475Sdelphij { "hebrew", NULL, "8bcccbcc18b95.33b.b29.32b28.2b2.b" }, 45161475Sdelphij { "koi8-r", NULL, "8bcccbcc18b95.b." }, 46161475Sdelphij { "KOI8-T", NULL, "8bcccbcc18b95.b8.b6.b8.b.b.5b7.3b4.b4.b3.b.b.3b." }, 47161475Sdelphij { "georgianps", NULL, "8bcccbcc18b95.3b11.4b12.2b." }, 48161475Sdelphij { "tcvn", NULL, "b..b...bcccbccbbb7.8b95.b48.5b." }, 49161475Sdelphij { "TIS-620", NULL, "8bcccbcc18b95.b.4b.11b7.8b." }, 50161475Sdelphij { "next", NULL, "8bcccbcc18b95.bb125.bb" }, 51161475Sdelphij { "dos", NULL, "8bcccbcc12bc5b95.b." }, 52161475Sdelphij { "windows-1251", NULL, "8bcccbcc12bc5b95.b24.b." }, 53161475Sdelphij { "windows-1252", NULL, "8bcccbcc12bc5b95.b.b11.b.2b12.b." }, 54161475Sdelphij { "windows-1255", NULL, "8bcccbcc12bc5b95.b.b8.b.5b9.b.4b." }, 55161475Sdelphij { "ebcdic", NULL, "5bc6bcc7bcc41b.9b7.9b5.b..8b6.10b6.b9.7b9.8b8.17b3.3b9.7b9.8b8.6b10.b.b.b." }, 56161475Sdelphij { "IBM-1047", NULL, "4cbcbc3b9cbccbccbb4c6bcc5b3cbbc4bc4bccbc191.b" }, 5760786Sps { NULL, NULL, NULL } 5860786Sps}; 5960786Sps 60161475Sdelphij/* 61161475Sdelphij * Support "locale charmap"/nl_langinfo(CODESET) values, as well as others. 62161475Sdelphij */ 6389019Spsstruct cs_alias { 6489019Sps char *name; 6589019Sps char *oname; 6689019Sps} cs_aliases[] = { 67161475Sdelphij { "UTF-8", "utf-8" }, 68161475Sdelphij { "ANSI_X3.4-1968", "ascii" }, 69161475Sdelphij { "US-ASCII", "ascii" }, 70161475Sdelphij { "latin1", "iso8859" }, 71161475Sdelphij { "ISO-8859-1", "iso8859" }, 72161475Sdelphij { "latin9", "iso8859" }, 73161475Sdelphij { "ISO-8859-15", "iso8859" }, 74161475Sdelphij { "latin2", "iso8859" }, 75161475Sdelphij { "ISO-8859-2", "iso8859" }, 76161475Sdelphij { "ISO-8859-3", "latin3" }, 77161475Sdelphij { "latin4", "iso8859" }, 78161475Sdelphij { "ISO-8859-4", "iso8859" }, 79161475Sdelphij { "cyrillic", "iso8859" }, 80161475Sdelphij { "ISO-8859-5", "iso8859" }, 81161475Sdelphij { "ISO-8859-6", "arabic" }, 82161475Sdelphij { "ISO-8859-7", "greek" }, 83161475Sdelphij { "IBM9005", "greek2005" }, 84161475Sdelphij { "ISO-8859-8", "hebrew" }, 85161475Sdelphij { "latin5", "iso8859" }, 86161475Sdelphij { "ISO-8859-9", "iso8859" }, 87161475Sdelphij { "latin6", "iso8859" }, 88161475Sdelphij { "ISO-8859-10", "iso8859" }, 89161475Sdelphij { "latin7", "iso8859" }, 90161475Sdelphij { "ISO-8859-13", "iso8859" }, 91161475Sdelphij { "latin8", "iso8859" }, 92161475Sdelphij { "ISO-8859-14", "iso8859" }, 93161475Sdelphij { "latin10", "iso8859" }, 94161475Sdelphij { "ISO-8859-16", "iso8859" }, 95161475Sdelphij { "IBM437", "dos" }, 96161475Sdelphij { "EBCDIC-US", "ebcdic" }, 97161475Sdelphij { "IBM1047", "IBM-1047" }, 98161475Sdelphij { "KOI8-R", "koi8-r" }, 99161475Sdelphij { "KOI8-U", "koi8-r" }, 100161475Sdelphij { "GEORGIAN-PS", "georgianps" }, 101161475Sdelphij { "TCVN5712-1", "tcvn" }, 102161475Sdelphij { "NEXTSTEP", "next" }, 103161475Sdelphij { "windows", "windows-1252" }, /* backward compatibility */ 104161475Sdelphij { "CP1251", "windows-1251" }, 105161475Sdelphij { "CP1252", "windows-1252" }, 106161475Sdelphij { "CP1255", "windows-1255" }, 10789019Sps { NULL, NULL } 10889019Sps}; 10989019Sps 11060786Sps#define IS_BINARY_CHAR 01 11160786Sps#define IS_CONTROL_CHAR 02 11260786Sps 11360786Spsstatic char chardef[256]; 11460786Spsstatic char *binfmt = NULL; 115161475Sdelphijstatic char *utfbinfmt = NULL; 11660786Spspublic int binattr = AT_STANDOUT; 11760786Sps 11860786Sps 11960786Sps/* 12060786Sps * Define a charset, given a description string. 12160786Sps * The string consists of 256 letters, 12260786Sps * one for each character in the charset. 12360786Sps * If the string is shorter than 256 letters, missing letters 12460786Sps * are taken to be identical to the last one. 12560786Sps * A decimal number followed by a letter is taken to be a 12660786Sps * repetition of the letter. 12760786Sps * 12860786Sps * Each letter is one of: 12960786Sps * . normal character 13060786Sps * b binary character 13160786Sps * c control character 13260786Sps */ 13360786Sps static void 13460786Spsichardef(s) 13560786Sps char *s; 13660786Sps{ 13760786Sps register char *cp; 13860786Sps register int n; 13960786Sps register char v; 14060786Sps 14160786Sps n = 0; 14260786Sps v = 0; 14360786Sps cp = chardef; 14460786Sps while (*s != '\0') 14560786Sps { 14660786Sps switch (*s++) 14760786Sps { 14860786Sps case '.': 14960786Sps v = 0; 15060786Sps break; 15160786Sps case 'c': 15260786Sps v = IS_CONTROL_CHAR; 15360786Sps break; 15460786Sps case 'b': 15560786Sps v = IS_BINARY_CHAR|IS_CONTROL_CHAR; 15660786Sps break; 15760786Sps 15860786Sps case '0': case '1': case '2': case '3': case '4': 15960786Sps case '5': case '6': case '7': case '8': case '9': 16060786Sps n = (10 * n) + (s[-1] - '0'); 16160786Sps continue; 16260786Sps 16360786Sps default: 16460786Sps error("invalid chardef", NULL_PARG); 16560786Sps quit(QUIT_ERROR); 16660786Sps /*NOTREACHED*/ 16760786Sps } 16860786Sps 16960786Sps do 17060786Sps { 17160786Sps if (cp >= chardef + sizeof(chardef)) 17260786Sps { 17360786Sps error("chardef longer than 256", NULL_PARG); 17460786Sps quit(QUIT_ERROR); 17560786Sps /*NOTREACHED*/ 17660786Sps } 17760786Sps *cp++ = v; 17860786Sps } while (--n > 0); 17960786Sps n = 0; 18060786Sps } 18160786Sps 18260786Sps while (cp < chardef + sizeof(chardef)) 18360786Sps *cp++ = v; 18460786Sps} 18560786Sps 18660786Sps/* 18760786Sps * Define a charset, given a charset name. 18860786Sps * The valid charset names are listed in the "charsets" array. 18960786Sps */ 19060786Sps static int 191161475Sdelphijicharset(name, no_error) 19260786Sps register char *name; 193161475Sdelphij int no_error; 19460786Sps{ 19560786Sps register struct charset *p; 19689019Sps register struct cs_alias *a; 19760786Sps 19860786Sps if (name == NULL || *name == '\0') 19960786Sps return (0); 20060786Sps 20189019Sps /* First see if the name is an alias. */ 20289019Sps for (a = cs_aliases; a->name != NULL; a++) 20389019Sps { 20489019Sps if (strcmp(name, a->name) == 0) 20589019Sps { 20689019Sps name = a->oname; 20789019Sps break; 20889019Sps } 20989019Sps } 21089019Sps 21160786Sps for (p = charsets; p->name != NULL; p++) 21260786Sps { 21360786Sps if (strcmp(name, p->name) == 0) 21460786Sps { 21560786Sps ichardef(p->desc); 21660786Sps if (p->p_flag != NULL) 21760786Sps *(p->p_flag) = 1; 21860786Sps return (1); 21960786Sps } 22060786Sps } 22160786Sps 222161475Sdelphij if (!no_error) { 223161475Sdelphij error("invalid charset name", NULL_PARG); 224161475Sdelphij quit(QUIT_ERROR); 225161475Sdelphij } 226128345Stjr return (0); 22760786Sps} 22860786Sps 22960786Sps#if HAVE_LOCALE 23060786Sps/* 23160786Sps * Define a charset, given a locale name. 23260786Sps */ 23360786Sps static void 23460786Spsilocale() 23560786Sps{ 23660786Sps register int c; 23760786Sps 23860786Sps for (c = 0; c < (int) sizeof(chardef); c++) 23960786Sps { 24060786Sps if (isprint(c)) 24160786Sps chardef[c] = 0; 24260786Sps else if (iscntrl(c)) 24360786Sps chardef[c] = IS_CONTROL_CHAR; 24460786Sps else 24560786Sps chardef[c] = IS_BINARY_CHAR|IS_CONTROL_CHAR; 24660786Sps } 24760786Sps} 24860786Sps#endif 24960786Sps 25060786Sps/* 251161475Sdelphij * Define the printing format for control (or binary utf) chars. 25260786Sps */ 253161475Sdelphij static void 254161475Sdelphijsetbinfmt(s, fmtvarptr, default_fmt) 25560786Sps char *s; 256161475Sdelphij char **fmtvarptr; 257161475Sdelphij char *default_fmt; 25860786Sps{ 259161475Sdelphij if (s && utf_mode) 260161475Sdelphij { 261161475Sdelphij /* It would be too hard to account for width otherwise. */ 262161475Sdelphij char *t = s; 263161475Sdelphij while (*t) 264161475Sdelphij { 265161475Sdelphij if (*t < ' ' || *t > '~') 266161475Sdelphij { 267161475Sdelphij s = default_fmt; 268161475Sdelphij goto attr; 269161475Sdelphij } 270161475Sdelphij t++; 271161475Sdelphij } 272161475Sdelphij } 273161475Sdelphij 274161475Sdelphij /* %n is evil */ 275161475Sdelphij if (s == NULL || *s == '\0' || 276161475Sdelphij (*s == '*' && (s[1] == '\0' || s[2] == '\0' || strchr(s + 2, 'n'))) || 277161475Sdelphij (*s != '*' && strchr(s, 'n'))) 278161475Sdelphij s = default_fmt; 279161475Sdelphij 28060786Sps /* 28160786Sps * Select the attributes if it starts with "*". 28260786Sps */ 283161475Sdelphij attr: 28460786Sps if (*s == '*') 28560786Sps { 28660786Sps switch (s[1]) 28760786Sps { 28860786Sps case 'd': binattr = AT_BOLD; break; 28960786Sps case 'k': binattr = AT_BLINK; break; 29060786Sps case 's': binattr = AT_STANDOUT; break; 29160786Sps case 'u': binattr = AT_UNDERLINE; break; 29260786Sps default: binattr = AT_NORMAL; break; 29360786Sps } 29460786Sps s += 2; 29560786Sps } 296161475Sdelphij *fmtvarptr = s; 29760786Sps} 29860786Sps 29960786Sps/* 300161475Sdelphij * 30160786Sps */ 302161475Sdelphij static void 303161475Sdelphijset_charset() 30460786Sps{ 305161475Sdelphij char *s; 30660786Sps 30760786Sps /* 30860786Sps * See if environment variable LESSCHARSET is defined. 30960786Sps */ 31060786Sps s = lgetenv("LESSCHARSET"); 311161475Sdelphij if (icharset(s, 0)) 31260786Sps return; 313161475Sdelphij 31460786Sps /* 31560786Sps * LESSCHARSET is not defined: try LESSCHARDEF. 31660786Sps */ 31760786Sps s = lgetenv("LESSCHARDEF"); 31860786Sps if (s != NULL && *s != '\0') 31960786Sps { 32060786Sps ichardef(s); 32160786Sps return; 32260786Sps } 32360786Sps 324161475Sdelphij#if HAVE_LOCALE 325170256Sdelphij#ifdef CODESET 326161475Sdelphij /* 327161475Sdelphij * Try using the codeset name as the charset name. 328161475Sdelphij */ 329161475Sdelphij s = nl_langinfo(CODESET); 330161475Sdelphij if (icharset(s, 1)) 331161475Sdelphij return; 332161475Sdelphij#endif 333170256Sdelphij#endif 334161475Sdelphij 33560786Sps#if HAVE_STRSTR 33660786Sps /* 33760786Sps * Check whether LC_ALL, LC_CTYPE or LANG look like UTF-8 is used. 33860786Sps */ 33960786Sps if ((s = lgetenv("LC_ALL")) != NULL || 34060786Sps (s = lgetenv("LC_CTYPE")) != NULL || 34160786Sps (s = lgetenv("LANG")) != NULL) 34260786Sps { 343161475Sdelphij if ( strstr(s, "UTF-8") != NULL || strstr(s, "utf-8") != NULL 344161475Sdelphij || strstr(s, "UTF8") != NULL || strstr(s, "utf8") != NULL) 345161475Sdelphij if (icharset("utf-8", 1)) 34660786Sps return; 34760786Sps } 34860786Sps#endif 34960786Sps 35060786Sps#if HAVE_LOCALE 35160786Sps /* 352161475Sdelphij * Get character definitions from locale functions, 353161475Sdelphij * rather than from predefined charset entry. 35460786Sps */ 35560786Sps ilocale(); 35689019Sps#if MSDOS_COMPILER 35760786Sps /* 35889019Sps * Default to "dos". 35989019Sps */ 360161475Sdelphij (void) icharset("dos", 1); 36189019Sps#else 36289019Sps /* 36360786Sps * Default to "latin1". 36460786Sps */ 365161475Sdelphij (void) icharset("latin1", 1); 36660786Sps#endif 36789019Sps#endif 36860786Sps} 36960786Sps 37060786Sps/* 371161475Sdelphij * Initialize charset data structures. 372161475Sdelphij */ 373161475Sdelphij public void 374161475Sdelphijinit_charset() 375161475Sdelphij{ 376161475Sdelphij char *s; 377161475Sdelphij 378161475Sdelphij#if HAVE_LOCALE 379161475Sdelphij setlocale(LC_ALL, ""); 380161475Sdelphij#endif 381161475Sdelphij 382161475Sdelphij set_charset(); 383161475Sdelphij 384161475Sdelphij s = lgetenv("LESSBINFMT"); 385161475Sdelphij setbinfmt(s, &binfmt, "*s<%02X>"); 386161475Sdelphij 387161475Sdelphij s = lgetenv("LESSUTFBINFMT"); 388161475Sdelphij setbinfmt(s, &utfbinfmt, "<U+%04lX>"); 389161475Sdelphij} 390161475Sdelphij 391161475Sdelphij/* 39260786Sps * Is a given character a "binary" character? 39360786Sps */ 39460786Sps public int 39560786Spsbinary_char(c) 39660786Sps unsigned char c; 39760786Sps{ 39860786Sps c &= 0377; 39960786Sps return (chardef[c] & IS_BINARY_CHAR); 40060786Sps} 40160786Sps 40260786Sps/* 40360786Sps * Is a given character a "control" character? 40460786Sps */ 40560786Sps public int 40660786Spscontrol_char(c) 40760786Sps int c; 40860786Sps{ 40960786Sps c &= 0377; 41060786Sps return (chardef[c] & IS_CONTROL_CHAR); 41160786Sps} 41260786Sps 41360786Sps/* 41460786Sps * Return the printable form of a character. 41560786Sps * For example, in the "ascii" charset '\3' is printed as "^C". 41660786Sps */ 41760786Sps public char * 41860786Spsprchar(c) 41960786Sps int c; 42060786Sps{ 421161475Sdelphij /* {{ This buffer can be overrun if LESSBINFMT is a long string. }} */ 422161475Sdelphij static char buf[32]; 42360786Sps 42460786Sps c &= 0377; 425161475Sdelphij if ((c < 128 || !utf_mode) && !control_char(c)) 426161475Sdelphij SNPRINTF1(buf, sizeof(buf), "%c", c); 42760786Sps else if (c == ESC) 428161475Sdelphij strcpy(buf, "ESC"); 42989019Sps#if IS_EBCDIC_HOST 43089019Sps else if (!binary_char(c) && c < 64) 431161475Sdelphij SNPRINTF1(buf, sizeof(buf), "^%c", 43289019Sps /* 43389019Sps * This array roughly inverts CONTROL() #defined in less.h, 43489019Sps * and should be kept in sync with CONTROL() and IBM-1047. 43589019Sps */ 43689019Sps "@ABC.I.?...KLMNO" 43789019Sps "PQRS.JH.XY.." 43889019Sps "\\]^_" 43989019Sps "......W[.....EFG" 44089019Sps "..V....D....TU.Z"[c]); 44189019Sps#else 44289019Sps else if (c < 128 && !control_char(c ^ 0100)) 443161475Sdelphij SNPRINTF1(buf, sizeof(buf), "^%c", c ^ 0100); 44489019Sps#endif 44560786Sps else 446161475Sdelphij SNPRINTF1(buf, sizeof(buf), binfmt, c); 44760786Sps return (buf); 44860786Sps} 449161475Sdelphij 450161475Sdelphij/* 451161475Sdelphij * Return the printable form of a UTF-8 character. 452161475Sdelphij */ 453161475Sdelphij public char * 454161475Sdelphijprutfchar(ch) 455161475Sdelphij LWCHAR ch; 456161475Sdelphij{ 457161475Sdelphij static char buf[32]; 458161475Sdelphij 459161475Sdelphij if (ch == ESC) 460161475Sdelphij strcpy(buf, "ESC"); 461161475Sdelphij else if (ch < 128 && control_char(ch)) 462161475Sdelphij { 463161475Sdelphij if (!control_char(ch ^ 0100)) 464161475Sdelphij SNPRINTF1(buf, sizeof(buf), "^%c", ((char) ch) ^ 0100); 465161475Sdelphij else 466161475Sdelphij SNPRINTF1(buf, sizeof(buf), binfmt, (char) ch); 467161475Sdelphij } else if (is_ubin_char(ch)) 468161475Sdelphij SNPRINTF1(buf, sizeof(buf), utfbinfmt, ch); 469161475Sdelphij else 470161475Sdelphij { 471161475Sdelphij int len; 472161475Sdelphij if (ch >= 0x80000000) 473161475Sdelphij { 474161475Sdelphij len = 3; 475161475Sdelphij ch = 0xFFFD; 476161475Sdelphij } else 477161475Sdelphij { 478161475Sdelphij len = (ch < 0x80) ? 1 479161475Sdelphij : (ch < 0x800) ? 2 480161475Sdelphij : (ch < 0x10000) ? 3 481161475Sdelphij : (ch < 0x200000) ? 4 482161475Sdelphij : (ch < 0x4000000) ? 5 483161475Sdelphij : 6; 484161475Sdelphij } 485161475Sdelphij buf[len] = '\0'; 486161475Sdelphij if (len == 1) 487161475Sdelphij *buf = (char) ch; 488161475Sdelphij else 489161475Sdelphij { 490161475Sdelphij *buf = ((1 << len) - 1) << (8 - len); 491161475Sdelphij while (--len > 0) 492161475Sdelphij { 493161475Sdelphij buf[len] = (char) (0x80 | (ch & 0x3F)); 494161475Sdelphij ch >>= 6; 495161475Sdelphij } 496161475Sdelphij *buf |= ch; 497161475Sdelphij } 498161475Sdelphij } 499161475Sdelphij return (buf); 500161475Sdelphij} 501161475Sdelphij 502161475Sdelphij/* 503161475Sdelphij * Get the length of a UTF-8 character in bytes. 504161475Sdelphij */ 505161475Sdelphij public int 506161475Sdelphijutf_len(ch) 507161475Sdelphij char ch; 508161475Sdelphij{ 509161475Sdelphij if ((ch & 0x80) == 0) 510161475Sdelphij return 1; 511161475Sdelphij if ((ch & 0xE0) == 0xC0) 512161475Sdelphij return 2; 513161475Sdelphij if ((ch & 0xF0) == 0xE0) 514161475Sdelphij return 3; 515161475Sdelphij if ((ch & 0xF8) == 0xF0) 516161475Sdelphij return 4; 517161475Sdelphij if ((ch & 0xFC) == 0xF8) 518161475Sdelphij return 5; 519161475Sdelphij if ((ch & 0xFE) == 0xFC) 520161475Sdelphij return 6; 521161475Sdelphij /* Invalid UTF-8 encoding. */ 522161475Sdelphij return 1; 523161475Sdelphij} 524161475Sdelphij 525161475Sdelphij/* 526161475Sdelphij * Is a UTF-8 character well-formed? 527161475Sdelphij */ 528161475Sdelphij public int 529161475Sdelphijis_utf8_well_formed(s) 530161475Sdelphij unsigned char *s; 531161475Sdelphij{ 532161475Sdelphij int i; 533161475Sdelphij int len; 534161475Sdelphij 535161475Sdelphij if (IS_UTF8_INVALID(s[0])) 536161475Sdelphij return (0); 537161475Sdelphij 538161475Sdelphij len = utf_len((char) s[0]); 539161475Sdelphij if (len == 1) 540161475Sdelphij return (1); 541161475Sdelphij if (len == 2) 542161475Sdelphij { 543161475Sdelphij if (s[0] < 0xC2) 544161475Sdelphij return (0); 545161475Sdelphij } else 546161475Sdelphij { 547161475Sdelphij unsigned char mask; 548161475Sdelphij mask = (~((1 << (8-len)) - 1)) & 0xFF; 549161475Sdelphij if (s[0] == mask && (s[1] & mask) == 0x80) 550161475Sdelphij return (0); 551161475Sdelphij } 552161475Sdelphij 553161475Sdelphij for (i = 1; i < len; i++) 554161475Sdelphij if (!IS_UTF8_TRAIL(s[i])) 555161475Sdelphij return (0); 556161475Sdelphij return (1); 557161475Sdelphij} 558161475Sdelphij 559161475Sdelphij/* 560161475Sdelphij * Get the value of a UTF-8 character. 561161475Sdelphij */ 562161475Sdelphij public LWCHAR 563161475Sdelphijget_wchar(p) 564161475Sdelphij char *p; 565161475Sdelphij{ 566161475Sdelphij switch (utf_len(p[0])) 567161475Sdelphij { 568161475Sdelphij case 1: 569161475Sdelphij default: 570161475Sdelphij return (LWCHAR) 571161475Sdelphij (p[0] & 0xFF); 572161475Sdelphij case 2: 573161475Sdelphij return (LWCHAR) ( 574161475Sdelphij ((p[0] & 0x1F) << 6) | 575161475Sdelphij (p[1] & 0x3F)); 576161475Sdelphij case 3: 577161475Sdelphij return (LWCHAR) ( 578161475Sdelphij ((p[0] & 0x0F) << 12) | 579161475Sdelphij ((p[1] & 0x3F) << 6) | 580161475Sdelphij (p[2] & 0x3F)); 581161475Sdelphij case 4: 582161475Sdelphij return (LWCHAR) ( 583161475Sdelphij ((p[0] & 0x07) << 18) | 584161475Sdelphij ((p[1] & 0x3F) << 12) | 585161475Sdelphij ((p[2] & 0x3F) << 6) | 586161475Sdelphij (p[3] & 0x3F)); 587161475Sdelphij case 5: 588161475Sdelphij return (LWCHAR) ( 589161475Sdelphij ((p[0] & 0x03) << 24) | 590161475Sdelphij ((p[1] & 0x3F) << 18) | 591161475Sdelphij ((p[2] & 0x3F) << 12) | 592161475Sdelphij ((p[3] & 0x3F) << 6) | 593161475Sdelphij (p[4] & 0x3F)); 594161475Sdelphij case 6: 595161475Sdelphij return (LWCHAR) ( 596161475Sdelphij ((p[0] & 0x01) << 30) | 597161475Sdelphij ((p[1] & 0x3F) << 24) | 598161475Sdelphij ((p[2] & 0x3F) << 18) | 599161475Sdelphij ((p[3] & 0x3F) << 12) | 600161475Sdelphij ((p[4] & 0x3F) << 6) | 601161475Sdelphij (p[5] & 0x3F)); 602161475Sdelphij } 603161475Sdelphij} 604161475Sdelphij 605161475Sdelphij/* 606161475Sdelphij * Step forward or backward one character in a string. 607161475Sdelphij */ 608161475Sdelphij public LWCHAR 609161475Sdelphijstep_char(pp, dir, limit) 610161475Sdelphij char **pp; 611161475Sdelphij signed int dir; 612161475Sdelphij char *limit; 613161475Sdelphij{ 614161475Sdelphij LWCHAR ch; 615161475Sdelphij char *p = *pp; 616161475Sdelphij 617161475Sdelphij if (!utf_mode) 618161475Sdelphij { 619161475Sdelphij /* It's easy if chars are one byte. */ 620161475Sdelphij if (dir > 0) 621161475Sdelphij ch = (LWCHAR) ((p < limit) ? *p++ : 0); 622161475Sdelphij else 623161475Sdelphij ch = (LWCHAR) ((p > limit) ? *--p : 0); 624161475Sdelphij } else if (dir > 0) 625161475Sdelphij { 626161475Sdelphij if (p + utf_len(*p) > limit) 627161475Sdelphij ch = 0; 628161475Sdelphij else 629161475Sdelphij { 630161475Sdelphij ch = get_wchar(p); 631161475Sdelphij p++; 632161475Sdelphij while (IS_UTF8_TRAIL(*p)) 633161475Sdelphij p++; 634161475Sdelphij } 635161475Sdelphij } else 636161475Sdelphij { 637161475Sdelphij while (p > limit && IS_UTF8_TRAIL(p[-1])) 638161475Sdelphij p--; 639161475Sdelphij if (p > limit) 640161475Sdelphij ch = get_wchar(--p); 641161475Sdelphij else 642161475Sdelphij ch = 0; 643161475Sdelphij } 644161475Sdelphij *pp = p; 645161475Sdelphij return ch; 646161475Sdelphij} 647161475Sdelphij 648161475Sdelphij/* 649161475Sdelphij * Unicode characters data 650161475Sdelphij */ 651161475Sdelphijstruct wchar_range { LWCHAR first, last; }; 652161475Sdelphij 653170256Sdelphij/* 654170256Sdelphij * Characters with general category values 655170256Sdelphij * Mn: Mark, Nonspacing 656170256Sdelphij * Me: Mark, Enclosing 657170256Sdelphij * Last synched with 658170256Sdelphij * <http://www.unicode.org/Public/5.0.0/ucd/UnicodeData-5.0.0d7.txt> 659170256Sdelphij * dated 2005-11-30T00:58:48Z 660170256Sdelphij */ 661161475Sdelphijstatic struct wchar_range comp_table[] = { 662170256Sdelphij { 0x0300, 0x036F} /* Mn */, { 0x0483, 0x0486} /* Mn */, 663170256Sdelphij { 0x0488, 0x0489} /* Me */, 664170256Sdelphij { 0x0591, 0x05BD} /* Mn */, { 0x05BF, 0x05BF} /* Mn */, 665170256Sdelphij { 0x05C1, 0x05C2} /* Mn */, { 0x05C4, 0x05C5} /* Mn */, 666170256Sdelphij { 0x05C7, 0x05C7} /* Mn */, { 0x0610, 0x0615} /* Mn */, 667170256Sdelphij { 0x064B, 0x065E} /* Mn */, { 0x0670, 0x0670} /* Mn */, 668170256Sdelphij { 0x06D6, 0x06DC} /* Mn */, 669170256Sdelphij { 0x06DE, 0x06DE} /* Me */, 670170256Sdelphij { 0x06DF, 0x06E4} /* Mn */, { 0x06E7, 0x06E8} /* Mn */, 671170256Sdelphij { 0x06EA, 0x06ED} /* Mn */, { 0x0711, 0x0711} /* Mn */, 672170256Sdelphij { 0x0730, 0x074A} /* Mn */, { 0x07A6, 0x07B0} /* Mn */, 673170256Sdelphij { 0x07EB, 0x07F3} /* Mn */, { 0x0901, 0x0902} /* Mn */, 674170256Sdelphij { 0x093C, 0x093C} /* Mn */, { 0x0941, 0x0948} /* Mn */, 675170256Sdelphij { 0x094D, 0x094D} /* Mn */, { 0x0951, 0x0954} /* Mn */, 676170256Sdelphij { 0x0962, 0x0963} /* Mn */, { 0x0981, 0x0981} /* Mn */, 677170256Sdelphij { 0x09BC, 0x09BC} /* Mn */, { 0x09C1, 0x09C4} /* Mn */, 678170256Sdelphij { 0x09CD, 0x09CD} /* Mn */, { 0x09E2, 0x09E3} /* Mn */, 679170256Sdelphij { 0x0A01, 0x0A02} /* Mn */, { 0x0A3C, 0x0A3C} /* Mn */, 680170256Sdelphij { 0x0A41, 0x0A42} /* Mn */, { 0x0A47, 0x0A48} /* Mn */, 681170256Sdelphij { 0x0A4B, 0x0A4D} /* Mn */, { 0x0A70, 0x0A71} /* Mn */, 682170256Sdelphij { 0x0A81, 0x0A82} /* Mn */, { 0x0ABC, 0x0ABC} /* Mn */, 683170256Sdelphij { 0x0AC1, 0x0AC5} /* Mn */, { 0x0AC7, 0x0AC8} /* Mn */, 684170256Sdelphij { 0x0ACD, 0x0ACD} /* Mn */, { 0x0AE2, 0x0AE3} /* Mn */, 685170256Sdelphij { 0x0B01, 0x0B01} /* Mn */, { 0x0B3C, 0x0B3C} /* Mn */, 686170256Sdelphij { 0x0B3F, 0x0B3F} /* Mn */, { 0x0B41, 0x0B43} /* Mn */, 687170256Sdelphij { 0x0B4D, 0x0B4D} /* Mn */, { 0x0B56, 0x0B56} /* Mn */, 688170256Sdelphij { 0x0B82, 0x0B82} /* Mn */, { 0x0BC0, 0x0BC0} /* Mn */, 689170256Sdelphij { 0x0BCD, 0x0BCD} /* Mn */, { 0x0C3E, 0x0C40} /* Mn */, 690170256Sdelphij { 0x0C46, 0x0C48} /* Mn */, { 0x0C4A, 0x0C4D} /* Mn */, 691170256Sdelphij { 0x0C55, 0x0C56} /* Mn */, { 0x0CBC, 0x0CBC} /* Mn */, 692170256Sdelphij { 0x0CBF, 0x0CBF} /* Mn */, { 0x0CC6, 0x0CC6} /* Mn */, 693170256Sdelphij { 0x0CCC, 0x0CCD} /* Mn */, { 0x0CE2, 0x0CE3} /* Mn */, 694170256Sdelphij { 0x0D41, 0x0D43} /* Mn */, { 0x0D4D, 0x0D4D} /* Mn */, 695170256Sdelphij { 0x0DCA, 0x0DCA} /* Mn */, { 0x0DD2, 0x0DD4} /* Mn */, 696170256Sdelphij { 0x0DD6, 0x0DD6} /* Mn */, { 0x0E31, 0x0E31} /* Mn */, 697170256Sdelphij { 0x0E34, 0x0E3A} /* Mn */, { 0x0E47, 0x0E4E} /* Mn */, 698170256Sdelphij { 0x0EB1, 0x0EB1} /* Mn */, { 0x0EB4, 0x0EB9} /* Mn */, 699170256Sdelphij { 0x0EBB, 0x0EBC} /* Mn */, { 0x0EC8, 0x0ECD} /* Mn */, 700170256Sdelphij { 0x0F18, 0x0F19} /* Mn */, { 0x0F35, 0x0F35} /* Mn */, 701170256Sdelphij { 0x0F37, 0x0F37} /* Mn */, { 0x0F39, 0x0F39} /* Mn */, 702170256Sdelphij { 0x0F71, 0x0F7E} /* Mn */, { 0x0F80, 0x0F84} /* Mn */, 703170256Sdelphij { 0x0F86, 0x0F87} /* Mn */, { 0x0F90, 0x0F97} /* Mn */, 704170256Sdelphij { 0x0F99, 0x0FBC} /* Mn */, { 0x0FC6, 0x0FC6} /* Mn */, 705170256Sdelphij { 0x102D, 0x1030} /* Mn */, { 0x1032, 0x1032} /* Mn */, 706170256Sdelphij { 0x1036, 0x1037} /* Mn */, { 0x1039, 0x1039} /* Mn */, 707170256Sdelphij { 0x1058, 0x1059} /* Mn */, { 0x135F, 0x135F} /* Mn */, 708170256Sdelphij { 0x1712, 0x1714} /* Mn */, { 0x1732, 0x1734} /* Mn */, 709170256Sdelphij { 0x1752, 0x1753} /* Mn */, { 0x1772, 0x1773} /* Mn */, 710170256Sdelphij { 0x17B7, 0x17BD} /* Mn */, { 0x17C6, 0x17C6} /* Mn */, 711170256Sdelphij { 0x17C9, 0x17D3} /* Mn */, { 0x17DD, 0x17DD} /* Mn */, 712170256Sdelphij { 0x180B, 0x180D} /* Mn */, { 0x18A9, 0x18A9} /* Mn */, 713170256Sdelphij { 0x1920, 0x1922} /* Mn */, { 0x1927, 0x1928} /* Mn */, 714170256Sdelphij { 0x1932, 0x1932} /* Mn */, { 0x1939, 0x193B} /* Mn */, 715170256Sdelphij { 0x1A17, 0x1A18} /* Mn */, { 0x1B00, 0x1B03} /* Mn */, 716170256Sdelphij { 0x1B34, 0x1B34} /* Mn */, { 0x1B36, 0x1B3A} /* Mn */, 717170256Sdelphij { 0x1B3C, 0x1B3C} /* Mn */, { 0x1B42, 0x1B42} /* Mn */, 718170256Sdelphij { 0x1B6B, 0x1B73} /* Mn */, { 0x1DC0, 0x1DCA} /* Mn */, 719170256Sdelphij { 0x1DFE, 0x1DFF} /* Mn */, { 0x20D0, 0x20DC} /* Mn */, 720170256Sdelphij { 0x20DD, 0x20E0} /* Me */, 721170256Sdelphij { 0x20E1, 0x20E1} /* Mn */, 722170256Sdelphij { 0x20E2, 0x20E4} /* Me */, 723170256Sdelphij { 0x20E5, 0x20EF} /* Mn */, { 0x302A, 0x302F} /* Mn */, 724170256Sdelphij { 0x3099, 0x309A} /* Mn */, { 0xA806, 0xA806} /* Mn */, 725170256Sdelphij { 0xA80B, 0xA80B} /* Mn */, { 0xA825, 0xA826} /* Mn */, 726170256Sdelphij { 0xFB1E, 0xFB1E} /* Mn */, { 0xFE00, 0xFE0F} /* Mn */, 727170256Sdelphij { 0xFE20, 0xFE23} /* Mn */, { 0x10A01, 0x10A03} /* Mn */, 728170256Sdelphij { 0x10A05, 0x10A06} /* Mn */, { 0x10A0C, 0x10A0F} /* Mn */, 729170256Sdelphij { 0x10A38, 0x10A3A} /* Mn */, { 0x10A3F, 0x10A3F} /* Mn */, 730170256Sdelphij { 0x1D167, 0x1D169} /* Mn */, { 0x1D17B, 0x1D182} /* Mn */, 731170256Sdelphij { 0x1D185, 0x1D18B} /* Mn */, { 0x1D1AA, 0x1D1AD} /* Mn */, 732170256Sdelphij { 0x1D242, 0x1D244} /* Mn */, { 0xE0100, 0xE01EF} /* Mn */, 733161475Sdelphij}; 734161475Sdelphij 735170256Sdelphij/* 736170256Sdelphij * Special pairs, not ranges. 737170256Sdelphij */ 738161475Sdelphijstatic struct wchar_range comb_table[] = { 739170256Sdelphij {0x0644,0x0622}, {0x0644,0x0623}, {0x0644,0x0625}, {0x0644,0x0627}, 740161475Sdelphij}; 741161475Sdelphij 742161475Sdelphij/* 743161475Sdelphij * Characters with general category values 744161475Sdelphij * Cc: Other, Control 745161475Sdelphij * Cf: Other, Format 746161475Sdelphij * Cs: Other, Surrogate 747161475Sdelphij * Co: Other, Private Use 748161475Sdelphij * Cn: Other, Not Assigned 749161475Sdelphij * Zl: Separator, Line 750161475Sdelphij * Zp: Separator, Paragraph 751170256Sdelphij * Last synched with 752170256Sdelphij * <http://www.unicode.org/Public/5.0.0/ucd/UnicodeData-5.0.0d7.txt> 753170256Sdelphij * dated 2005-11-30T00:58:48Z 754161475Sdelphij */ 755161475Sdelphijstatic struct wchar_range ubin_table[] = { 756170256Sdelphij { 0x0000, 0x001F} /* Cc */, { 0x007F, 0x009F} /* Cc */, 757161475Sdelphij#if 0 758170256Sdelphij { 0x00AD, 0x00AD} /* Cf */, 759161475Sdelphij#endif 760161475Sdelphij { 0x0370, 0x0373} /* Cn */, { 0x0376, 0x0379} /* Cn */, 761170256Sdelphij { 0x037F, 0x0383} /* Cn */, { 0x038B, 0x038B} /* Cn */, 762170256Sdelphij { 0x038D, 0x038D} /* Cn */, { 0x03A2, 0x03A2} /* Cn */, 763170256Sdelphij { 0x03CF, 0x03CF} /* Cn */, { 0x0487, 0x0487} /* Cn */, 764170256Sdelphij { 0x0514, 0x0530} /* Cn */, { 0x0557, 0x0558} /* Cn */, 765170256Sdelphij { 0x0560, 0x0560} /* Cn */, { 0x0588, 0x0588} /* Cn */, 766170256Sdelphij { 0x058B, 0x0590} /* Cn */, { 0x05C8, 0x05CF} /* Cn */, 767170256Sdelphij { 0x05EB, 0x05EF} /* Cn */, { 0x05F5, 0x05FF} /* Cn */, 768161475Sdelphij#if 0 769161475Sdelphij { 0x0600, 0x0603} /* Cf */, 770161475Sdelphij#endif 771170256Sdelphij { 0x0604, 0x060A} /* Cn */, { 0x0616, 0x061A} /* Cn */, 772170256Sdelphij { 0x061C, 0x061D} /* Cn */, { 0x0620, 0x0620} /* Cn */, 773170256Sdelphij { 0x063B, 0x063F} /* Cn */, { 0x065F, 0x065F} /* Cn */, 774161475Sdelphij#if 0 775170256Sdelphij { 0x06DD, 0x06DD} /* Cf */, 776161475Sdelphij#endif 777170256Sdelphij { 0x070E, 0x070E} /* Cn */, 778161475Sdelphij#if 0 779170256Sdelphij { 0x070F, 0x070F} /* Cf */, 780161475Sdelphij#endif 781170256Sdelphij { 0x074B, 0x074C} /* Cn */, { 0x076E, 0x077F} /* Cn */, 782170256Sdelphij { 0x07B2, 0x07BF} /* Cn */, { 0x07FB, 0x0900} /* Cn */, 783170256Sdelphij { 0x093A, 0x093B} /* Cn */, { 0x094E, 0x094F} /* Cn */, 784170256Sdelphij { 0x0955, 0x0957} /* Cn */, { 0x0971, 0x097A} /* Cn */, 785170256Sdelphij { 0x0980, 0x0980} /* Cn */, { 0x0984, 0x0984} /* Cn */, 786170256Sdelphij { 0x098D, 0x098E} /* Cn */, { 0x0991, 0x0992} /* Cn */, 787170256Sdelphij { 0x09A9, 0x09A9} /* Cn */, { 0x09B1, 0x09B1} /* Cn */, 788170256Sdelphij { 0x09B3, 0x09B5} /* Cn */, { 0x09BA, 0x09BB} /* Cn */, 789170256Sdelphij { 0x09C5, 0x09C6} /* Cn */, { 0x09C9, 0x09CA} /* Cn */, 790170256Sdelphij { 0x09CF, 0x09D6} /* Cn */, { 0x09D8, 0x09DB} /* Cn */, 791170256Sdelphij { 0x09DE, 0x09DE} /* Cn */, { 0x09E4, 0x09E5} /* Cn */, 792170256Sdelphij { 0x09FB, 0x0A00} /* Cn */, { 0x0A04, 0x0A04} /* Cn */, 793170256Sdelphij { 0x0A0B, 0x0A0E} /* Cn */, { 0x0A11, 0x0A12} /* Cn */, 794170256Sdelphij { 0x0A29, 0x0A29} /* Cn */, { 0x0A31, 0x0A31} /* Cn */, 795170256Sdelphij { 0x0A34, 0x0A34} /* Cn */, { 0x0A37, 0x0A37} /* Cn */, 796170256Sdelphij { 0x0A3A, 0x0A3B} /* Cn */, { 0x0A3D, 0x0A3D} /* Cn */, 797170256Sdelphij { 0x0A43, 0x0A46} /* Cn */, { 0x0A49, 0x0A4A} /* Cn */, 798170256Sdelphij { 0x0A4E, 0x0A58} /* Cn */, { 0x0A5D, 0x0A5D} /* Cn */, 799170256Sdelphij { 0x0A5F, 0x0A65} /* Cn */, { 0x0A75, 0x0A80} /* Cn */, 800170256Sdelphij { 0x0A84, 0x0A84} /* Cn */, { 0x0A8E, 0x0A8E} /* Cn */, 801170256Sdelphij { 0x0A92, 0x0A92} /* Cn */, { 0x0AA9, 0x0AA9} /* Cn */, 802170256Sdelphij { 0x0AB1, 0x0AB1} /* Cn */, { 0x0AB4, 0x0AB4} /* Cn */, 803170256Sdelphij { 0x0ABA, 0x0ABB} /* Cn */, { 0x0AC6, 0x0AC6} /* Cn */, 804170256Sdelphij { 0x0ACA, 0x0ACA} /* Cn */, { 0x0ACE, 0x0ACF} /* Cn */, 805170256Sdelphij { 0x0AD1, 0x0ADF} /* Cn */, { 0x0AE4, 0x0AE5} /* Cn */, 806170256Sdelphij { 0x0AF0, 0x0AF0} /* Cn */, { 0x0AF2, 0x0B00} /* Cn */, 807170256Sdelphij { 0x0B04, 0x0B04} /* Cn */, { 0x0B0D, 0x0B0E} /* Cn */, 808170256Sdelphij { 0x0B11, 0x0B12} /* Cn */, { 0x0B29, 0x0B29} /* Cn */, 809170256Sdelphij { 0x0B31, 0x0B31} /* Cn */, { 0x0B34, 0x0B34} /* Cn */, 810170256Sdelphij { 0x0B3A, 0x0B3B} /* Cn */, { 0x0B44, 0x0B46} /* Cn */, 811170256Sdelphij { 0x0B49, 0x0B4A} /* Cn */, { 0x0B4E, 0x0B55} /* Cn */, 812170256Sdelphij { 0x0B58, 0x0B5B} /* Cn */, { 0x0B5E, 0x0B5E} /* Cn */, 813170256Sdelphij { 0x0B62, 0x0B65} /* Cn */, { 0x0B72, 0x0B81} /* Cn */, 814170256Sdelphij { 0x0B84, 0x0B84} /* Cn */, { 0x0B8B, 0x0B8D} /* Cn */, 815170256Sdelphij { 0x0B91, 0x0B91} /* Cn */, { 0x0B96, 0x0B98} /* Cn */, 816170256Sdelphij { 0x0B9B, 0x0B9B} /* Cn */, { 0x0B9D, 0x0B9D} /* Cn */, 817170256Sdelphij { 0x0BA0, 0x0BA2} /* Cn */, { 0x0BA5, 0x0BA7} /* Cn */, 818170256Sdelphij { 0x0BAB, 0x0BAD} /* Cn */, { 0x0BBA, 0x0BBD} /* Cn */, 819170256Sdelphij { 0x0BC3, 0x0BC5} /* Cn */, { 0x0BC9, 0x0BC9} /* Cn */, 820170256Sdelphij { 0x0BCE, 0x0BD6} /* Cn */, { 0x0BD8, 0x0BE5} /* Cn */, 821170256Sdelphij { 0x0BFB, 0x0C00} /* Cn */, { 0x0C04, 0x0C04} /* Cn */, 822170256Sdelphij { 0x0C0D, 0x0C0D} /* Cn */, { 0x0C11, 0x0C11} /* Cn */, 823170256Sdelphij { 0x0C29, 0x0C29} /* Cn */, { 0x0C34, 0x0C34} /* Cn */, 824170256Sdelphij { 0x0C3A, 0x0C3D} /* Cn */, { 0x0C45, 0x0C45} /* Cn */, 825170256Sdelphij { 0x0C49, 0x0C49} /* Cn */, { 0x0C4E, 0x0C54} /* Cn */, 826170256Sdelphij { 0x0C57, 0x0C5F} /* Cn */, { 0x0C62, 0x0C65} /* Cn */, 827170256Sdelphij { 0x0C70, 0x0C81} /* Cn */, { 0x0C84, 0x0C84} /* Cn */, 828170256Sdelphij { 0x0C8D, 0x0C8D} /* Cn */, { 0x0C91, 0x0C91} /* Cn */, 829170256Sdelphij { 0x0CA9, 0x0CA9} /* Cn */, { 0x0CB4, 0x0CB4} /* Cn */, 830170256Sdelphij { 0x0CBA, 0x0CBB} /* Cn */, { 0x0CC5, 0x0CC5} /* Cn */, 831170256Sdelphij { 0x0CC9, 0x0CC9} /* Cn */, { 0x0CCE, 0x0CD4} /* Cn */, 832170256Sdelphij { 0x0CD7, 0x0CDD} /* Cn */, { 0x0CDF, 0x0CDF} /* Cn */, 833170256Sdelphij { 0x0CE4, 0x0CE5} /* Cn */, { 0x0CF0, 0x0CF0} /* Cn */, 834170256Sdelphij { 0x0CF3, 0x0D01} /* Cn */, { 0x0D04, 0x0D04} /* Cn */, 835170256Sdelphij { 0x0D0D, 0x0D0D} /* Cn */, { 0x0D11, 0x0D11} /* Cn */, 836170256Sdelphij { 0x0D29, 0x0D29} /* Cn */, { 0x0D3A, 0x0D3D} /* Cn */, 837170256Sdelphij { 0x0D44, 0x0D45} /* Cn */, { 0x0D49, 0x0D49} /* Cn */, 838170256Sdelphij { 0x0D4E, 0x0D56} /* Cn */, { 0x0D58, 0x0D5F} /* Cn */, 839170256Sdelphij { 0x0D62, 0x0D65} /* Cn */, { 0x0D70, 0x0D81} /* Cn */, 840170256Sdelphij { 0x0D84, 0x0D84} /* Cn */, { 0x0D97, 0x0D99} /* Cn */, 841170256Sdelphij { 0x0DB2, 0x0DB2} /* Cn */, { 0x0DBC, 0x0DBC} /* Cn */, 842170256Sdelphij { 0x0DBE, 0x0DBF} /* Cn */, { 0x0DC7, 0x0DC9} /* Cn */, 843170256Sdelphij { 0x0DCB, 0x0DCE} /* Cn */, { 0x0DD5, 0x0DD5} /* Cn */, 844170256Sdelphij { 0x0DD7, 0x0DD7} /* Cn */, { 0x0DE0, 0x0DF1} /* Cn */, 845170256Sdelphij { 0x0DF5, 0x0E00} /* Cn */, { 0x0E3B, 0x0E3E} /* Cn */, 846170256Sdelphij { 0x0E5C, 0x0E80} /* Cn */, { 0x0E83, 0x0E83} /* Cn */, 847170256Sdelphij { 0x0E85, 0x0E86} /* Cn */, { 0x0E89, 0x0E89} /* Cn */, 848170256Sdelphij { 0x0E8B, 0x0E8C} /* Cn */, { 0x0E8E, 0x0E93} /* Cn */, 849170256Sdelphij { 0x0E98, 0x0E98} /* Cn */, { 0x0EA0, 0x0EA0} /* Cn */, 850170256Sdelphij { 0x0EA4, 0x0EA4} /* Cn */, { 0x0EA6, 0x0EA6} /* Cn */, 851170256Sdelphij { 0x0EA8, 0x0EA9} /* Cn */, { 0x0EAC, 0x0EAC} /* Cn */, 852170256Sdelphij { 0x0EBA, 0x0EBA} /* Cn */, { 0x0EBE, 0x0EBF} /* Cn */, 853170256Sdelphij { 0x0EC5, 0x0EC5} /* Cn */, { 0x0EC7, 0x0EC7} /* Cn */, 854170256Sdelphij { 0x0ECE, 0x0ECF} /* Cn */, { 0x0EDA, 0x0EDB} /* Cn */, 855170256Sdelphij { 0x0EDE, 0x0EFF} /* Cn */, { 0x0F48, 0x0F48} /* Cn */, 856170256Sdelphij { 0x0F6B, 0x0F70} /* Cn */, { 0x0F8C, 0x0F8F} /* Cn */, 857170256Sdelphij { 0x0F98, 0x0F98} /* Cn */, { 0x0FBD, 0x0FBD} /* Cn */, 858170256Sdelphij { 0x0FCD, 0x0FCE} /* Cn */, { 0x0FD2, 0x0FFF} /* Cn */, 859161475Sdelphij { 0x1022, 0x1022} /* Cn */, { 0x1028, 0x1028} /* Cn */, 860170256Sdelphij { 0x102B, 0x102B} /* Cn */, { 0x1033, 0x1035} /* Cn */, 861170256Sdelphij { 0x103A, 0x103F} /* Cn */, { 0x105A, 0x109F} /* Cn */, 862170256Sdelphij { 0x10C6, 0x10CF} /* Cn */, { 0x10FD, 0x10FF} /* Cn */, 863170256Sdelphij { 0x115A, 0x115E} /* Cn */, { 0x11A3, 0x11A7} /* Cn */, 864170256Sdelphij { 0x11FA, 0x11FF} /* Cn */, { 0x1249, 0x1249} /* Cn */, 865170256Sdelphij { 0x124E, 0x124F} /* Cn */, { 0x1257, 0x1257} /* Cn */, 866170256Sdelphij { 0x1259, 0x1259} /* Cn */, { 0x125E, 0x125F} /* Cn */, 867170256Sdelphij { 0x1289, 0x1289} /* Cn */, { 0x128E, 0x128F} /* Cn */, 868170256Sdelphij { 0x12B1, 0x12B1} /* Cn */, { 0x12B6, 0x12B7} /* Cn */, 869170256Sdelphij { 0x12BF, 0x12BF} /* Cn */, { 0x12C1, 0x12C1} /* Cn */, 870170256Sdelphij { 0x12C6, 0x12C7} /* Cn */, { 0x12D7, 0x12D7} /* Cn */, 871161475Sdelphij { 0x1311, 0x1311} /* Cn */, { 0x1316, 0x1317} /* Cn */, 872170256Sdelphij { 0x135B, 0x135E} /* Cn */, { 0x137D, 0x137F} /* Cn */, 873170256Sdelphij { 0x139A, 0x139F} /* Cn */, { 0x13F5, 0x1400} /* Cn */, 874170256Sdelphij { 0x1677, 0x167F} /* Cn */, { 0x169D, 0x169F} /* Cn */, 875170256Sdelphij { 0x16F1, 0x16FF} /* Cn */, { 0x170D, 0x170D} /* Cn */, 876170256Sdelphij { 0x1715, 0x171F} /* Cn */, { 0x1737, 0x173F} /* Cn */, 877170256Sdelphij { 0x1754, 0x175F} /* Cn */, { 0x176D, 0x176D} /* Cn */, 878170256Sdelphij { 0x1771, 0x1771} /* Cn */, { 0x1774, 0x177F} /* Cn */, 879161475Sdelphij#if 0 880170256Sdelphij { 0x17B4, 0x17B5} /* Cf */, 881161475Sdelphij#endif 882170256Sdelphij { 0x17DE, 0x17DF} /* Cn */, { 0x17EA, 0x17EF} /* Cn */, 883170256Sdelphij { 0x17FA, 0x17FF} /* Cn */, { 0x180F, 0x180F} /* Cn */, 884170256Sdelphij { 0x181A, 0x181F} /* Cn */, { 0x1878, 0x187F} /* Cn */, 885170256Sdelphij { 0x18AA, 0x18FF} /* Cn */, { 0x191D, 0x191F} /* Cn */, 886170256Sdelphij { 0x192C, 0x192F} /* Cn */, { 0x193C, 0x193F} /* Cn */, 887170256Sdelphij { 0x1941, 0x1943} /* Cn */, { 0x196E, 0x196F} /* Cn */, 888170256Sdelphij { 0x1975, 0x197F} /* Cn */, { 0x19AA, 0x19AF} /* Cn */, 889170256Sdelphij { 0x19CA, 0x19CF} /* Cn */, { 0x19DA, 0x19DD} /* Cn */, 890170256Sdelphij { 0x1A1C, 0x1A1D} /* Cn */, { 0x1A20, 0x1AFF} /* Cn */, 891170256Sdelphij { 0x1B4C, 0x1B4F} /* Cn */, { 0x1B7D, 0x1CFF} /* Cn */, 892170256Sdelphij { 0x1DCB, 0x1DFD} /* Cn */, { 0x1E9C, 0x1E9F} /* Cn */, 893170256Sdelphij { 0x1EFA, 0x1EFF} /* Cn */, { 0x1F16, 0x1F17} /* Cn */, 894170256Sdelphij { 0x1F1E, 0x1F1F} /* Cn */, { 0x1F46, 0x1F47} /* Cn */, 895170256Sdelphij { 0x1F4E, 0x1F4F} /* Cn */, { 0x1F58, 0x1F58} /* Cn */, 896170256Sdelphij { 0x1F5A, 0x1F5A} /* Cn */, { 0x1F5C, 0x1F5C} /* Cn */, 897170256Sdelphij { 0x1F5E, 0x1F5E} /* Cn */, { 0x1F7E, 0x1F7F} /* Cn */, 898170256Sdelphij { 0x1FB5, 0x1FB5} /* Cn */, { 0x1FC5, 0x1FC5} /* Cn */, 899170256Sdelphij { 0x1FD4, 0x1FD5} /* Cn */, { 0x1FDC, 0x1FDC} /* Cn */, 900170256Sdelphij { 0x1FF0, 0x1FF1} /* Cn */, { 0x1FF5, 0x1FF5} /* Cn */, 901170256Sdelphij { 0x1FFF, 0x1FFF} /* Cn */, 902170256Sdelphij { 0x200B, 0x200F} /* Cf */, 903161475Sdelphij { 0x2028, 0x2028} /* Zl */, 904161475Sdelphij { 0x2029, 0x2029} /* Zp */, 905170256Sdelphij { 0x202A, 0x202E} /* Cf */, 906161475Sdelphij { 0x2060, 0x2063} /* Cf */, 907161475Sdelphij { 0x2064, 0x2069} /* Cn */, 908170256Sdelphij { 0x206A, 0x206F} /* Cf */, 909170256Sdelphij { 0x2072, 0x2073} /* Cn */, { 0x208F, 0x208F} /* Cn */, 910170256Sdelphij { 0x2095, 0x209F} /* Cn */, { 0x20B6, 0x20CF} /* Cn */, 911170256Sdelphij { 0x20F0, 0x20FF} /* Cn */, { 0x214F, 0x2152} /* Cn */, 912170256Sdelphij { 0x2185, 0x218F} /* Cn */, { 0x23E8, 0x23FF} /* Cn */, 913170256Sdelphij { 0x2427, 0x243F} /* Cn */, { 0x244B, 0x245F} /* Cn */, 914170256Sdelphij { 0x269D, 0x269F} /* Cn */, { 0x26B3, 0x2700} /* Cn */, 915170256Sdelphij { 0x2705, 0x2705} /* Cn */, { 0x270A, 0x270B} /* Cn */, 916170256Sdelphij { 0x2728, 0x2728} /* Cn */, { 0x274C, 0x274C} /* Cn */, 917170256Sdelphij { 0x274E, 0x274E} /* Cn */, { 0x2753, 0x2755} /* Cn */, 918170256Sdelphij { 0x2757, 0x2757} /* Cn */, { 0x275F, 0x2760} /* Cn */, 919170256Sdelphij { 0x2795, 0x2797} /* Cn */, { 0x27B0, 0x27B0} /* Cn */, 920170256Sdelphij { 0x27BF, 0x27BF} /* Cn */, { 0x27CB, 0x27CF} /* Cn */, 921170256Sdelphij { 0x27EC, 0x27EF} /* Cn */, { 0x2B1B, 0x2B1F} /* Cn */, 922170256Sdelphij { 0x2B24, 0x2BFF} /* Cn */, { 0x2C2F, 0x2C2F} /* Cn */, 923170256Sdelphij { 0x2C5F, 0x2C5F} /* Cn */, { 0x2C6D, 0x2C73} /* Cn */, 924170256Sdelphij { 0x2C78, 0x2C7F} /* Cn */, { 0x2CEB, 0x2CF8} /* Cn */, 925170256Sdelphij { 0x2D26, 0x2D2F} /* Cn */, { 0x2D66, 0x2D6E} /* Cn */, 926170256Sdelphij { 0x2D70, 0x2D7F} /* Cn */, { 0x2D97, 0x2D9F} /* Cn */, 927170256Sdelphij { 0x2DA7, 0x2DA7} /* Cn */, { 0x2DAF, 0x2DAF} /* Cn */, 928170256Sdelphij { 0x2DB7, 0x2DB7} /* Cn */, { 0x2DBF, 0x2DBF} /* Cn */, 929170256Sdelphij { 0x2DC7, 0x2DC7} /* Cn */, { 0x2DCF, 0x2DCF} /* Cn */, 930170256Sdelphij { 0x2DD7, 0x2DD7} /* Cn */, { 0x2DDF, 0x2DFF} /* Cn */, 931170256Sdelphij { 0x2E18, 0x2E1B} /* Cn */, { 0x2E1E, 0x2E7F} /* Cn */, 932170256Sdelphij { 0x2E9A, 0x2E9A} /* Cn */, { 0x2EF4, 0x2EFF} /* Cn */, 933170256Sdelphij { 0x2FD6, 0x2FEF} /* Cn */, { 0x2FFC, 0x2FFF} /* Cn */, 934170256Sdelphij { 0x3040, 0x3040} /* Cn */, { 0x3097, 0x3098} /* Cn */, 935170256Sdelphij { 0x3100, 0x3104} /* Cn */, { 0x312D, 0x3130} /* Cn */, 936170256Sdelphij { 0x318F, 0x318F} /* Cn */, { 0x31B8, 0x31BF} /* Cn */, 937170256Sdelphij { 0x31D0, 0x31EF} /* Cn */, { 0x321F, 0x321F} /* Cn */, 938170256Sdelphij { 0x3244, 0x324F} /* Cn */, { 0x32FF, 0x32FF} /* Cn */, 939170256Sdelphij { 0x4DB6, 0x4DBF} /* Cn */, { 0x9FBC, 0x9FFF} /* Cn */, 940170256Sdelphij { 0xA48D, 0xA48F} /* Cn */, { 0xA4C7, 0xA6FF} /* Cn */, 941170256Sdelphij { 0xA71B, 0xA71F} /* Cn */, { 0xA722, 0xA7FF} /* Cn */, 942170256Sdelphij { 0xA82C, 0xA83F} /* Cn */, { 0xA878, 0xABFF} /* Cn */, 943170256Sdelphij { 0xD7A4, 0xD7FF} /* Cn */, 944170256Sdelphij { 0xD800, 0xDFFF} /* Cs */, 945170256Sdelphij { 0xE000, 0xF8FF} /* Co */, 946170256Sdelphij { 0xFA2E, 0xFA2F} /* Cn */, { 0xFA6B, 0xFA6F} /* Cn */, 947170256Sdelphij { 0xFADA, 0xFAFF} /* Cn */, { 0xFB07, 0xFB12} /* Cn */, 948170256Sdelphij { 0xFB18, 0xFB1C} /* Cn */, { 0xFB37, 0xFB37} /* Cn */, 949170256Sdelphij { 0xFB3D, 0xFB3D} /* Cn */, { 0xFB3F, 0xFB3F} /* Cn */, 950170256Sdelphij { 0xFB42, 0xFB42} /* Cn */, { 0xFB45, 0xFB45} /* Cn */, 951170256Sdelphij { 0xFBB2, 0xFBD2} /* Cn */, { 0xFD40, 0xFD4F} /* Cn */, 952170256Sdelphij { 0xFD90, 0xFD91} /* Cn */, { 0xFDC8, 0xFDEF} /* Cn */, 953170256Sdelphij { 0xFDFE, 0xFDFF} /* Cn */, { 0xFE1A, 0xFE1F} /* Cn */, 954170256Sdelphij { 0xFE24, 0xFE2F} /* Cn */, { 0xFE53, 0xFE53} /* Cn */, 955170256Sdelphij { 0xFE67, 0xFE67} /* Cn */, { 0xFE6C, 0xFE6F} /* Cn */, 956170256Sdelphij { 0xFE75, 0xFE75} /* Cn */, { 0xFEFD, 0xFEFE} /* Cn */, 957170256Sdelphij { 0xFEFF, 0xFEFF} /* Cf */, 958170256Sdelphij { 0xFF00, 0xFF00} /* Cn */, { 0xFFBF, 0xFFC1} /* Cn */, 959170256Sdelphij { 0xFFC8, 0xFFC9} /* Cn */, { 0xFFD0, 0xFFD1} /* Cn */, 960170256Sdelphij { 0xFFD8, 0xFFD9} /* Cn */, { 0xFFDD, 0xFFDF} /* Cn */, 961170256Sdelphij { 0xFFE7, 0xFFE7} /* Cn */, { 0xFFEF, 0xFFF8} /* Cn */, 962170256Sdelphij { 0xFFF9, 0xFFFB} /* Cf */, 963170256Sdelphij { 0xFFFE, 0xFFFF} /* Cn */, { 0x1000C, 0x1000C} /* Cn */, 964170256Sdelphij { 0x10027, 0x10027} /* Cn */, { 0x1003B, 0x1003B} /* Cn */, 965170256Sdelphij { 0x1003E, 0x1003E} /* Cn */, { 0x1004E, 0x1004F} /* Cn */, 966170256Sdelphij { 0x1005E, 0x1007F} /* Cn */, { 0x100FB, 0x100FF} /* Cn */, 967161475Sdelphij { 0x10103, 0x10106} /* Cn */, { 0x10134, 0x10136} /* Cn */, 968170256Sdelphij { 0x1018B, 0x102FF} /* Cn */, { 0x1031F, 0x1031F} /* Cn */, 969170256Sdelphij { 0x10324, 0x1032F} /* Cn */, { 0x1034B, 0x1037F} /* Cn */, 970170256Sdelphij { 0x1039E, 0x1039E} /* Cn */, { 0x103C4, 0x103C7} /* Cn */, 971170256Sdelphij { 0x103D6, 0x103FF} /* Cn */, 972170256Sdelphij { 0x1049E, 0x1049F} /* Cn */, { 0x104AA, 0x107FF} /* Cn */, 973161475Sdelphij { 0x10806, 0x10807} /* Cn */, { 0x10809, 0x10809} /* Cn */, 974170256Sdelphij { 0x10836, 0x10836} /* Cn */, { 0x10839, 0x1083B} /* Cn */, 975170256Sdelphij { 0x1083D, 0x1083E} /* Cn */, { 0x10840, 0x108FF} /* Cn */, 976170256Sdelphij { 0x1091A, 0x1091E} /* Cn */, { 0x10920, 0x109FF} /* Cn */, 977170256Sdelphij { 0x10A04, 0x10A04} /* Cn */, { 0x10A07, 0x10A0B} /* Cn */, 978170256Sdelphij { 0x10A14, 0x10A14} /* Cn */, { 0x10A18, 0x10A18} /* Cn */, 979170256Sdelphij { 0x10A34, 0x10A37} /* Cn */, { 0x10A3B, 0x10A3E} /* Cn */, 980170256Sdelphij { 0x10A48, 0x10A4F} /* Cn */, { 0x10A59, 0x11FFF} /* Cn */, 981170256Sdelphij { 0x1236F, 0x123FF} /* Cn */, { 0x12463, 0x1246F} /* Cn */, 982170256Sdelphij { 0x12474, 0x1CFFF} /* Cn */, { 0x1D0F6, 0x1D0FF} /* Cn */, 983170256Sdelphij { 0x1D127, 0x1D129} /* Cn */, 984170256Sdelphij { 0x1D173, 0x1D17A} /* Cf */, 985170256Sdelphij { 0x1D1DE, 0x1D1FF} /* Cn */, { 0x1D246, 0x1D2FF} /* Cn */, 986170256Sdelphij { 0x1D357, 0x1D35F} /* Cn */, { 0x1D372, 0x1D3FF} /* Cn */, 987170256Sdelphij { 0x1D455, 0x1D455} /* Cn */, { 0x1D49D, 0x1D49D} /* Cn */, 988170256Sdelphij { 0x1D4A0, 0x1D4A1} /* Cn */, { 0x1D4A3, 0x1D4A4} /* Cn */, 989170256Sdelphij { 0x1D4A7, 0x1D4A8} /* Cn */, { 0x1D4AD, 0x1D4AD} /* Cn */, 990170256Sdelphij { 0x1D4BA, 0x1D4BA} /* Cn */, { 0x1D4BC, 0x1D4BC} /* Cn */, 991170256Sdelphij { 0x1D4C4, 0x1D4C4} /* Cn */, { 0x1D506, 0x1D506} /* Cn */, 992170256Sdelphij { 0x1D50B, 0x1D50C} /* Cn */, { 0x1D515, 0x1D515} /* Cn */, 993170256Sdelphij { 0x1D51D, 0x1D51D} /* Cn */, { 0x1D53A, 0x1D53A} /* Cn */, 994170256Sdelphij { 0x1D53F, 0x1D53F} /* Cn */, { 0x1D545, 0x1D545} /* Cn */, 995170256Sdelphij { 0x1D547, 0x1D549} /* Cn */, { 0x1D551, 0x1D551} /* Cn */, 996170256Sdelphij { 0x1D6A6, 0x1D6A7} /* Cn */, { 0x1D7CC, 0x1D7CD} /* Cn */, 997170256Sdelphij { 0x1D800, 0x1FFFF} /* Cn */, { 0x2A6D7, 0x2F7FF} /* Cn */, 998170256Sdelphij { 0x2FA1E, 0xE0000} /* Cn */, 999170256Sdelphij { 0xE0001, 0xE0001} /* Cf */, 1000170256Sdelphij { 0xE0002, 0xE001F} /* Cn */, 1001170256Sdelphij { 0xE0020, 0xE007F} /* Cf */, 1002170256Sdelphij { 0xE0080, 0xE00FF} /* Cn */, { 0xE01F0, 0xEFFFF} /* Cn */, 1003170256Sdelphij { 0xF0000, 0xFFFFD} /* Co */, 1004170256Sdelphij { 0xFFFFE, 0xFFFFF} /* Cn */, 1005170256Sdelphij {0x100000,0x10FFFD} /* Co */, 1006170256Sdelphij {0x10FFFE,0x10FFFF} /* Cn */, 1007170256Sdelphij {0x110000,0x7FFFFFFF} /* ISO 10646?? */ 1008161475Sdelphij}; 1009161475Sdelphij 1010161475Sdelphij/* 1011161475Sdelphij * Double width characters 1012161475Sdelphij * W: East Asian Wide 1013161475Sdelphij * F: East Asian Full-width 1014170256Sdelphij * Unassigned code points may be included when they allow ranges to be merged. 1015170256Sdelphij * Last synched with 1016170256Sdelphij * <http://www.unicode.org/Public/5.0.0/ucd/EastAsianWidth-5.0.0d2.txt> 1017170256Sdelphij * dated 2005-11-08T01:32:56Z 1018161475Sdelphij */ 1019161475Sdelphijstatic struct wchar_range wide_table[] = { 1020170256Sdelphij { 0x1100, 0x115F} /* W */, { 0x2329, 0x232A} /* W */, 1021161475Sdelphij { 0x2E80, 0x2FFB} /* W */, 1022161475Sdelphij { 0x3000, 0x3000} /* F */, 1023161475Sdelphij { 0x3001, 0x303E} /* W */, { 0x3041, 0x4DB5} /* W */, 1024170256Sdelphij { 0x4E00, 0x9FBB} /* W */, { 0xA000, 0xA4C6} /* W */, 1025170256Sdelphij { 0xAC00, 0xD7A3} /* W */, { 0xF900, 0xFAD9} /* W */, 1026170256Sdelphij { 0xFE10, 0xFE19} /* W */, { 0xFE30, 0xFE6B} /* W */, 1027161475Sdelphij { 0xFF01, 0xFF60} /* F */, { 0xFFE0, 0xFFE6} /* F */, 1028161475Sdelphij { 0x20000, 0x2FFFD} /* W */, { 0x30000, 0x3FFFD} /* W */, 1029161475Sdelphij}; 1030161475Sdelphij 1031161475Sdelphij static int 1032161475Sdelphijis_in_table(ch, table, tsize) 1033161475Sdelphij LWCHAR ch; 1034161475Sdelphij struct wchar_range table[]; 1035161475Sdelphij int tsize; 1036161475Sdelphij{ 1037161475Sdelphij int hi; 1038161475Sdelphij int lo; 1039161475Sdelphij 1040161475Sdelphij /* Binary search in the table. */ 1041161475Sdelphij if (ch < table[0].first) 1042161475Sdelphij return 0; 1043161475Sdelphij lo = 0; 1044161475Sdelphij hi = tsize - 1; 1045161475Sdelphij while (lo <= hi) 1046161475Sdelphij { 1047161475Sdelphij int mid = (lo + hi) / 2; 1048161475Sdelphij if (ch > table[mid].last) 1049161475Sdelphij lo = mid + 1; 1050161475Sdelphij else if (ch < table[mid].first) 1051161475Sdelphij hi = mid - 1; 1052161475Sdelphij else 1053161475Sdelphij return 1; 1054161475Sdelphij } 1055161475Sdelphij return 0; 1056161475Sdelphij} 1057161475Sdelphij 1058161475Sdelphij/* 1059161475Sdelphij * Is a character a UTF-8 composing character? 1060161475Sdelphij * If a composing character follows any char, the two combine into one glyph. 1061161475Sdelphij */ 1062161475Sdelphij public int 1063161475Sdelphijis_composing_char(ch) 1064161475Sdelphij LWCHAR ch; 1065161475Sdelphij{ 1066161475Sdelphij return is_in_table(ch, comp_table, (sizeof(comp_table) / sizeof(*comp_table))); 1067161475Sdelphij} 1068161475Sdelphij 1069161475Sdelphij/* 1070161475Sdelphij * Should this UTF-8 character be treated as binary? 1071161475Sdelphij */ 1072161475Sdelphij public int 1073161475Sdelphijis_ubin_char(ch) 1074161475Sdelphij LWCHAR ch; 1075161475Sdelphij{ 1076161475Sdelphij return is_in_table(ch, ubin_table, (sizeof(ubin_table) / sizeof(*ubin_table))); 1077161475Sdelphij} 1078161475Sdelphij 1079161475Sdelphij/* 1080161475Sdelphij * Is this a double width UTF-8 character? 1081161475Sdelphij */ 1082161475Sdelphij public int 1083161475Sdelphijis_wide_char(ch) 1084161475Sdelphij LWCHAR ch; 1085161475Sdelphij{ 1086161475Sdelphij return is_in_table(ch, wide_table, (sizeof(wide_table) / sizeof(*wide_table))); 1087161475Sdelphij} 1088161475Sdelphij 1089161475Sdelphij/* 1090161475Sdelphij * Is a character a UTF-8 combining character? 1091161475Sdelphij * A combining char acts like an ordinary char, but if it follows 1092161475Sdelphij * a specific char (not any char), the two combine into one glyph. 1093161475Sdelphij */ 1094161475Sdelphij public int 1095161475Sdelphijis_combining_char(ch1, ch2) 1096161475Sdelphij LWCHAR ch1; 1097161475Sdelphij LWCHAR ch2; 1098161475Sdelphij{ 1099161475Sdelphij /* The table is small; use linear search. */ 1100161475Sdelphij int i; 1101161475Sdelphij for (i = 0; i < sizeof(comb_table)/sizeof(*comb_table); i++) 1102161475Sdelphij { 1103161475Sdelphij if (ch1 == comb_table[i].first && 1104161475Sdelphij ch2 == comb_table[i].last) 1105161475Sdelphij return 1; 1106161475Sdelphij } 1107161475Sdelphij return 0; 1108161475Sdelphij} 1109161475Sdelphij 1110