From a783495a127b7d4cc1a4abae25aba658b38110b4 Mon Sep 17 00:00:00 2001 From: Vincent Sanders Date: Mon, 4 Jan 2016 00:35:53 +0000 Subject: Build with NetSurf core buildsystem --- src/utf8proc.c | 642 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 642 insertions(+) create mode 100644 src/utf8proc.c (limited to 'src/utf8proc.c') diff --git a/src/utf8proc.c b/src/utf8proc.c new file mode 100644 index 0000000..c302b79 --- /dev/null +++ b/src/utf8proc.c @@ -0,0 +1,642 @@ +/* -*- mode: c; c-basic-offset: 2; tab-width: 2; indent-tabs-mode: nil -*- */ +/* + * Copyright (c) 2009 Public Software Group e. V., Berlin, Germany + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +/* + * This library contains derived data from a modified version of the + * Unicode data files. + * + * The original data files are available at + * http://www.unicode.org/Public/UNIDATA/ + * + * Please notice the copyright statement in the file "utf8proc_data.c". + */ + + +/* + * File name: utf8proc.c + * + * Description: + * Implementation of libutf8proc. + */ + + +#include "utf8proc.h" +#include "utf8proc_data.c" + + +UTF8PROC_DLLEXPORT const utf8proc_int8_t utf8proc_utf8class[256] = { + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, + 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0 }; + +#define UTF8PROC_HANGUL_SBASE 0xAC00 +#define UTF8PROC_HANGUL_LBASE 0x1100 +#define UTF8PROC_HANGUL_VBASE 0x1161 +#define UTF8PROC_HANGUL_TBASE 0x11A7 +#define UTF8PROC_HANGUL_LCOUNT 19 +#define UTF8PROC_HANGUL_VCOUNT 21 +#define UTF8PROC_HANGUL_TCOUNT 28 +#define UTF8PROC_HANGUL_NCOUNT 588 +#define UTF8PROC_HANGUL_SCOUNT 11172 +/* END is exclusive */ +#define UTF8PROC_HANGUL_L_START 0x1100 +#define UTF8PROC_HANGUL_L_END 0x115A +#define UTF8PROC_HANGUL_L_FILLER 0x115F +#define UTF8PROC_HANGUL_V_START 0x1160 +#define UTF8PROC_HANGUL_V_END 0x11A3 +#define UTF8PROC_HANGUL_T_START 0x11A8 +#define UTF8PROC_HANGUL_T_END 0x11FA +#define UTF8PROC_HANGUL_S_START 0xAC00 +#define UTF8PROC_HANGUL_S_END 0xD7A4 + +/* Should follow semantic-versioning rules (semver.org) based on API + compatibility. (Note that the shared-library version number will + be different, being based on ABI compatibility.): */ +#define STRINGIZEx(x) #x +#define STRINGIZE(x) STRINGIZEx(x) +UTF8PROC_DLLEXPORT const char *utf8proc_version(void) { + return STRINGIZE(UTF8PROC_VERSION_MAJOR) "." STRINGIZE(UTF8PROC_VERSION_MINOR) "." STRINGIZE(UTF8PROC_VERSION_PATCH) ""; +} + +UTF8PROC_DLLEXPORT const char *utf8proc_errmsg(utf8proc_ssize_t errcode) { + switch (errcode) { + case UTF8PROC_ERROR_NOMEM: + return "Memory for processing UTF-8 data could not be allocated."; + case UTF8PROC_ERROR_OVERFLOW: + return "UTF-8 string is too long to be processed."; + case UTF8PROC_ERROR_INVALIDUTF8: + return "Invalid UTF-8 string"; + case UTF8PROC_ERROR_NOTASSIGNED: + return "Unassigned Unicode code point found in UTF-8 string."; + case UTF8PROC_ERROR_INVALIDOPTS: + return "Invalid options for UTF-8 processing chosen."; + default: + return "An unknown error occurred while processing UTF-8 data."; + } +} + +#define utf_cont(ch) (((ch) & 0xc0) == 0x80) +UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_iterate( + const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, utf8proc_int32_t *dst +) { + utf8proc_uint32_t uc; + const utf8proc_uint8_t *end; + + *dst = -1; + if (!strlen) return 0; + end = str + ((strlen < 0) ? 4 : strlen); + uc = *str++; + if (uc < 0x80) { + *dst = uc; + return 1; + } + // Must be between 0xc2 and 0xf4 inclusive to be valid + if ((uc - 0xc2) > (0xf4-0xc2)) return UTF8PROC_ERROR_INVALIDUTF8; + if (uc < 0xe0) { // 2-byte sequence + // Must have valid continuation character + if (!utf_cont(*str)) return UTF8PROC_ERROR_INVALIDUTF8; + *dst = ((uc & 0x1f)<<6) | (*str & 0x3f); + return 2; + } + if (uc < 0xf0) { // 3-byte sequence + if ((str + 1 >= end) || !utf_cont(*str) || !utf_cont(str[1])) + return UTF8PROC_ERROR_INVALIDUTF8; + // Check for surrogate chars + if (uc == 0xed && *str > 0x9f) + return UTF8PROC_ERROR_INVALIDUTF8; + uc = ((uc & 0xf)<<12) | ((*str & 0x3f)<<6) | (str[1] & 0x3f); + if (uc < 0x800) + return UTF8PROC_ERROR_INVALIDUTF8; + *dst = uc; + return 3; + } + // 4-byte sequence + // Must have 3 valid continuation characters + if ((str + 2 >= end) || !utf_cont(*str) || !utf_cont(str[1]) || !utf_cont(str[2])) + return UTF8PROC_ERROR_INVALIDUTF8; + // Make sure in correct range (0x10000 - 0x10ffff) + if (uc == 0xf0) { + if (*str < 0x90) return UTF8PROC_ERROR_INVALIDUTF8; + } else if (uc == 0xf4) { + if (*str > 0x8f) return UTF8PROC_ERROR_INVALIDUTF8; + } + *dst = ((uc & 7)<<18) | ((*str & 0x3f)<<12) | ((str[1] & 0x3f)<<6) | (str[2] & 0x3f); + return 4; +} + +UTF8PROC_DLLEXPORT utf8proc_bool utf8proc_codepoint_valid(utf8proc_int32_t uc) { + return (((utf8proc_uint32_t)uc)-0xd800 > 0x07ff) && ((utf8proc_uint32_t)uc < 0x110000); +} + +UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_encode_char(utf8proc_int32_t uc, utf8proc_uint8_t *dst) { + if (uc < 0x00) { + return 0; + } else if (uc < 0x80) { + dst[0] = uc; + return 1; + } else if (uc < 0x800) { + dst[0] = 0xC0 + (uc >> 6); + dst[1] = 0x80 + (uc & 0x3F); + return 2; + // Note: we allow encoding 0xd800-0xdfff here, so as not to change + // the API, however, these are actually invalid in UTF-8 + } else if (uc < 0x10000) { + dst[0] = 0xE0 + (uc >> 12); + dst[1] = 0x80 + ((uc >> 6) & 0x3F); + dst[2] = 0x80 + (uc & 0x3F); + return 3; + } else if (uc < 0x110000) { + dst[0] = 0xF0 + (uc >> 18); + dst[1] = 0x80 + ((uc >> 12) & 0x3F); + dst[2] = 0x80 + ((uc >> 6) & 0x3F); + dst[3] = 0x80 + (uc & 0x3F); + return 4; + } else return 0; +} + +/* internal "unsafe" version that does not check whether uc is in range */ +static utf8proc_ssize_t unsafe_encode_char(utf8proc_int32_t uc, utf8proc_uint8_t *dst) { + if (uc < 0x00) { + return 0; + } else if (uc < 0x80) { + dst[0] = uc; + return 1; + } else if (uc < 0x800) { + dst[0] = 0xC0 + (uc >> 6); + dst[1] = 0x80 + (uc & 0x3F); + return 2; + } else if (uc == 0xFFFF) { + dst[0] = 0xFF; + return 1; + } else if (uc == 0xFFFE) { + dst[0] = 0xFE; + return 1; + } else if (uc < 0x10000) { + dst[0] = 0xE0 + (uc >> 12); + dst[1] = 0x80 + ((uc >> 6) & 0x3F); + dst[2] = 0x80 + (uc & 0x3F); + return 3; + } else if (uc < 0x110000) { + dst[0] = 0xF0 + (uc >> 18); + dst[1] = 0x80 + ((uc >> 12) & 0x3F); + dst[2] = 0x80 + ((uc >> 6) & 0x3F); + dst[3] = 0x80 + (uc & 0x3F); + return 4; + } else return 0; +} + +/* internal "unsafe" version that does not check whether uc is in range */ +static const utf8proc_property_t *unsafe_get_property(utf8proc_int32_t uc) { + /* ASSERT: uc >= 0 && uc < 0x110000 */ + return utf8proc_properties + ( + utf8proc_stage2table[ + utf8proc_stage1table[uc >> 8] + (uc & 0xFF) + ] + ); +} + +UTF8PROC_DLLEXPORT const utf8proc_property_t *utf8proc_get_property(utf8proc_int32_t uc) { + return uc < 0 || uc >= 0x110000 ? utf8proc_properties : unsafe_get_property(uc); +} + +/* return whether there is a grapheme break between boundclasses lbc and tbc */ +static utf8proc_bool grapheme_break(int lbc, int tbc) { + return + (lbc == UTF8PROC_BOUNDCLASS_START) ? true : + (lbc == UTF8PROC_BOUNDCLASS_CR && + tbc == UTF8PROC_BOUNDCLASS_LF) ? false : + (lbc >= UTF8PROC_BOUNDCLASS_CR && lbc <= UTF8PROC_BOUNDCLASS_CONTROL) ? true : + (tbc >= UTF8PROC_BOUNDCLASS_CR && tbc <= UTF8PROC_BOUNDCLASS_CONTROL) ? true : + (tbc == UTF8PROC_BOUNDCLASS_EXTEND) ? false : + (lbc == UTF8PROC_BOUNDCLASS_L && + (tbc == UTF8PROC_BOUNDCLASS_L || + tbc == UTF8PROC_BOUNDCLASS_V || + tbc == UTF8PROC_BOUNDCLASS_LV || + tbc == UTF8PROC_BOUNDCLASS_LVT)) ? false : + ((lbc == UTF8PROC_BOUNDCLASS_LV || + lbc == UTF8PROC_BOUNDCLASS_V) && + (tbc == UTF8PROC_BOUNDCLASS_V || + tbc == UTF8PROC_BOUNDCLASS_T)) ? false : + ((lbc == UTF8PROC_BOUNDCLASS_LVT || + lbc == UTF8PROC_BOUNDCLASS_T) && + tbc == UTF8PROC_BOUNDCLASS_T) ? false : + (lbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR && + tbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR) ? false : + (tbc != UTF8PROC_BOUNDCLASS_SPACINGMARK); +} + +/* return whether there is a grapheme break between codepoints c1 and c2 */ +UTF8PROC_DLLEXPORT utf8proc_bool utf8proc_grapheme_break(utf8proc_int32_t c1, utf8proc_int32_t c2) { + return grapheme_break(utf8proc_get_property(c1)->boundclass, + utf8proc_get_property(c2)->boundclass); +} + +UTF8PROC_DLLEXPORT utf8proc_int32_t utf8proc_tolower(utf8proc_int32_t c) +{ + utf8proc_int32_t cl = utf8proc_get_property(c)->lowercase_mapping; + return cl >= 0 ? cl : c; +} + +UTF8PROC_DLLEXPORT utf8proc_int32_t utf8proc_toupper(utf8proc_int32_t c) +{ + utf8proc_int32_t cu = utf8proc_get_property(c)->uppercase_mapping; + return cu >= 0 ? cu : c; +} + +/* return a character width analogous to wcwidth (except portable and + hopefully less buggy than most system wcwidth functions). */ +UTF8PROC_DLLEXPORT int utf8proc_charwidth(utf8proc_int32_t c) { + return utf8proc_get_property(c)->charwidth; +} + +UTF8PROC_DLLEXPORT utf8proc_category_t utf8proc_category(utf8proc_int32_t c) { + return utf8proc_get_property(c)->category; +} + +UTF8PROC_DLLEXPORT const char *utf8proc_category_string(utf8proc_int32_t c) { + static const char s[][3] = {"Cn","Lu","Ll","Lt","Lm","Lo","Mn","Mc","Me","Nd","Nl","No","Pc","Pd","Ps","Pe","Pi","Pf","Po","Sm","Sc","Sk","So","Zs","Zl","Zp","Cc","Cf","Cs","Co"}; + return s[utf8proc_category(c)]; +} + +#define utf8proc_decompose_lump(replacement_uc) \ + return utf8proc_decompose_char((replacement_uc), dst, bufsize, \ + options & ~UTF8PROC_LUMP, last_boundclass) + +UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_decompose_char(utf8proc_int32_t uc, utf8proc_int32_t *dst, utf8proc_ssize_t bufsize, utf8proc_option_t options, int *last_boundclass) { + const utf8proc_property_t *property; + utf8proc_propval_t category; + utf8proc_int32_t hangul_sindex; + if (uc < 0 || uc >= 0x110000) return UTF8PROC_ERROR_NOTASSIGNED; + property = unsafe_get_property(uc); + category = property->category; + hangul_sindex = uc - UTF8PROC_HANGUL_SBASE; + if (options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) { + if (hangul_sindex >= 0 && hangul_sindex < UTF8PROC_HANGUL_SCOUNT) { + utf8proc_int32_t hangul_tindex; + if (bufsize >= 1) { + dst[0] = UTF8PROC_HANGUL_LBASE + + hangul_sindex / UTF8PROC_HANGUL_NCOUNT; + if (bufsize >= 2) dst[1] = UTF8PROC_HANGUL_VBASE + + (hangul_sindex % UTF8PROC_HANGUL_NCOUNT) / UTF8PROC_HANGUL_TCOUNT; + } + hangul_tindex = hangul_sindex % UTF8PROC_HANGUL_TCOUNT; + if (!hangul_tindex) return 2; + if (bufsize >= 3) dst[2] = UTF8PROC_HANGUL_TBASE + hangul_tindex; + return 3; + } + } + if (options & UTF8PROC_REJECTNA) { + if (!category) return UTF8PROC_ERROR_NOTASSIGNED; + } + if (options & UTF8PROC_IGNORE) { + if (property->ignorable) return 0; + } + if (options & UTF8PROC_LUMP) { + if (category == UTF8PROC_CATEGORY_ZS) utf8proc_decompose_lump(0x0020); + if (uc == 0x2018 || uc == 0x2019 || uc == 0x02BC || uc == 0x02C8) + utf8proc_decompose_lump(0x0027); + if (category == UTF8PROC_CATEGORY_PD || uc == 0x2212) + utf8proc_decompose_lump(0x002D); + if (uc == 0x2044 || uc == 0x2215) utf8proc_decompose_lump(0x002F); + if (uc == 0x2236) utf8proc_decompose_lump(0x003A); + if (uc == 0x2039 || uc == 0x2329 || uc == 0x3008) + utf8proc_decompose_lump(0x003C); + if (uc == 0x203A || uc == 0x232A || uc == 0x3009) + utf8proc_decompose_lump(0x003E); + if (uc == 0x2216) utf8proc_decompose_lump(0x005C); + if (uc == 0x02C4 || uc == 0x02C6 || uc == 0x2038 || uc == 0x2303) + utf8proc_decompose_lump(0x005E); + if (category == UTF8PROC_CATEGORY_PC || uc == 0x02CD) + utf8proc_decompose_lump(0x005F); + if (uc == 0x02CB) utf8proc_decompose_lump(0x0060); + if (uc == 0x2223) utf8proc_decompose_lump(0x007C); + if (uc == 0x223C) utf8proc_decompose_lump(0x007E); + if ((options & UTF8PROC_NLF2LS) && (options & UTF8PROC_NLF2PS)) { + if (category == UTF8PROC_CATEGORY_ZL || + category == UTF8PROC_CATEGORY_ZP) + utf8proc_decompose_lump(0x000A); + } + } + if (options & UTF8PROC_STRIPMARK) { + if (category == UTF8PROC_CATEGORY_MN || + category == UTF8PROC_CATEGORY_MC || + category == UTF8PROC_CATEGORY_ME) return 0; + } + if (options & UTF8PROC_CASEFOLD) { + if (property->casefold_mapping) { + const utf8proc_int32_t *casefold_entry; + utf8proc_ssize_t written = 0; + for (casefold_entry = property->casefold_mapping; + *casefold_entry >= 0; casefold_entry++) { + written += utf8proc_decompose_char(*casefold_entry, dst+written, + (bufsize > written) ? (bufsize - written) : 0, options, + last_boundclass); + if (written < 0) return UTF8PROC_ERROR_OVERFLOW; + } + return written; + } + } + if (options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) { + if (property->decomp_mapping && + (!property->decomp_type || (options & UTF8PROC_COMPAT))) { + const utf8proc_int32_t *decomp_entry; + utf8proc_ssize_t written = 0; + for (decomp_entry = property->decomp_mapping; + *decomp_entry >= 0; decomp_entry++) { + written += utf8proc_decompose_char(*decomp_entry, dst+written, + (bufsize > written) ? (bufsize - written) : 0, options, + last_boundclass); + if (written < 0) return UTF8PROC_ERROR_OVERFLOW; + } + return written; + } + } + if (options & UTF8PROC_CHARBOUND) { + utf8proc_bool boundary; + int tbc = property->boundclass; + boundary = grapheme_break(*last_boundclass, tbc); + *last_boundclass = tbc; + if (boundary) { + if (bufsize >= 1) dst[0] = 0xFFFF; + if (bufsize >= 2) dst[1] = uc; + return 2; + } + } + if (bufsize >= 1) *dst = uc; + return 1; +} + +UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_decompose( + const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, + utf8proc_int32_t *buffer, utf8proc_ssize_t bufsize, utf8proc_option_t options +) { + /* strlen will be ignored, if UTF8PROC_NULLTERM is set in options */ + utf8proc_ssize_t wpos = 0; + if ((options & UTF8PROC_COMPOSE) && (options & UTF8PROC_DECOMPOSE)) + return UTF8PROC_ERROR_INVALIDOPTS; + if ((options & UTF8PROC_STRIPMARK) && + !(options & UTF8PROC_COMPOSE) && !(options & UTF8PROC_DECOMPOSE)) + return UTF8PROC_ERROR_INVALIDOPTS; + { + utf8proc_int32_t uc; + utf8proc_ssize_t rpos = 0; + utf8proc_ssize_t decomp_result; + int boundclass = UTF8PROC_BOUNDCLASS_START; + while (1) { + if (options & UTF8PROC_NULLTERM) { + rpos += utf8proc_iterate(str + rpos, -1, &uc); + /* checking of return value is not necessary, + as 'uc' is < 0 in case of error */ + if (uc < 0) return UTF8PROC_ERROR_INVALIDUTF8; + if (rpos < 0) return UTF8PROC_ERROR_OVERFLOW; + if (uc == 0) break; + } else { + if (rpos >= strlen) break; + rpos += utf8proc_iterate(str + rpos, strlen - rpos, &uc); + if (uc < 0) return UTF8PROC_ERROR_INVALIDUTF8; + } + decomp_result = utf8proc_decompose_char( + uc, buffer + wpos, (bufsize > wpos) ? (bufsize - wpos) : 0, options, + &boundclass + ); + if (decomp_result < 0) return decomp_result; + wpos += decomp_result; + /* prohibiting integer overflows due to too long strings: */ + if (wpos < 0 || wpos > SSIZE_MAX/sizeof(utf8proc_int32_t)/2) + return UTF8PROC_ERROR_OVERFLOW; + } + } + if ((options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) && bufsize >= wpos) { + utf8proc_ssize_t pos = 0; + while (pos < wpos-1) { + utf8proc_int32_t uc1, uc2; + const utf8proc_property_t *property1, *property2; + uc1 = buffer[pos]; + uc2 = buffer[pos+1]; + property1 = unsafe_get_property(uc1); + property2 = unsafe_get_property(uc2); + if (property1->combining_class > property2->combining_class && + property2->combining_class > 0) { + buffer[pos] = uc2; + buffer[pos+1] = uc1; + if (pos > 0) pos--; else pos++; + } else { + pos++; + } + } + } + return wpos; +} + +UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_reencode(utf8proc_int32_t *buffer, utf8proc_ssize_t length, utf8proc_option_t options) { + /* UTF8PROC_NULLTERM option will be ignored, 'length' is never ignored + ASSERT: 'buffer' has one spare byte of free space at the end! */ + if (options & (UTF8PROC_NLF2LS | UTF8PROC_NLF2PS | UTF8PROC_STRIPCC)) { + utf8proc_ssize_t rpos; + utf8proc_ssize_t wpos = 0; + utf8proc_int32_t uc; + for (rpos = 0; rpos < length; rpos++) { + uc = buffer[rpos]; + if (uc == 0x000D && rpos < length-1 && buffer[rpos+1] == 0x000A) rpos++; + if (uc == 0x000A || uc == 0x000D || uc == 0x0085 || + ((options & UTF8PROC_STRIPCC) && (uc == 0x000B || uc == 0x000C))) { + if (options & UTF8PROC_NLF2LS) { + if (options & UTF8PROC_NLF2PS) { + buffer[wpos++] = 0x000A; + } else { + buffer[wpos++] = 0x2028; + } + } else { + if (options & UTF8PROC_NLF2PS) { + buffer[wpos++] = 0x2029; + } else { + buffer[wpos++] = 0x0020; + } + } + } else if ((options & UTF8PROC_STRIPCC) && + (uc < 0x0020 || (uc >= 0x007F && uc < 0x00A0))) { + if (uc == 0x0009) buffer[wpos++] = 0x0020; + } else { + buffer[wpos++] = uc; + } + } + length = wpos; + } + if (options & UTF8PROC_COMPOSE) { + utf8proc_int32_t *starter = NULL; + utf8proc_int32_t current_char; + const utf8proc_property_t *starter_property = NULL, *current_property; + utf8proc_propval_t max_combining_class = -1; + utf8proc_ssize_t rpos; + utf8proc_ssize_t wpos = 0; + utf8proc_int32_t composition; + for (rpos = 0; rpos < length; rpos++) { + current_char = buffer[rpos]; + current_property = unsafe_get_property(current_char); + if (starter && current_property->combining_class > max_combining_class) { + /* combination perhaps possible */ + utf8proc_int32_t hangul_lindex; + utf8proc_int32_t hangul_sindex; + hangul_lindex = *starter - UTF8PROC_HANGUL_LBASE; + if (hangul_lindex >= 0 && hangul_lindex < UTF8PROC_HANGUL_LCOUNT) { + utf8proc_int32_t hangul_vindex; + hangul_vindex = current_char - UTF8PROC_HANGUL_VBASE; + if (hangul_vindex >= 0 && hangul_vindex < UTF8PROC_HANGUL_VCOUNT) { + *starter = UTF8PROC_HANGUL_SBASE + + (hangul_lindex * UTF8PROC_HANGUL_VCOUNT + hangul_vindex) * + UTF8PROC_HANGUL_TCOUNT; + starter_property = NULL; + continue; + } + } + hangul_sindex = *starter - UTF8PROC_HANGUL_SBASE; + if (hangul_sindex >= 0 && hangul_sindex < UTF8PROC_HANGUL_SCOUNT && + (hangul_sindex % UTF8PROC_HANGUL_TCOUNT) == 0) { + utf8proc_int32_t hangul_tindex; + hangul_tindex = current_char - UTF8PROC_HANGUL_TBASE; + if (hangul_tindex >= 0 && hangul_tindex < UTF8PROC_HANGUL_TCOUNT) { + *starter += hangul_tindex; + starter_property = NULL; + continue; + } + } + if (!starter_property) { + starter_property = unsafe_get_property(*starter); + } + if (starter_property->comb1st_index >= 0 && + current_property->comb2nd_index >= 0) { + composition = utf8proc_combinations[ + starter_property->comb1st_index + + current_property->comb2nd_index + ]; + if (composition >= 0 && (!(options & UTF8PROC_STABLE) || + !(unsafe_get_property(composition)->comp_exclusion))) { + *starter = composition; + starter_property = NULL; + continue; + } + } + } + buffer[wpos] = current_char; + if (current_property->combining_class) { + if (current_property->combining_class > max_combining_class) { + max_combining_class = current_property->combining_class; + } + } else { + starter = buffer + wpos; + starter_property = NULL; + max_combining_class = -1; + } + wpos++; + } + length = wpos; + } + { + utf8proc_ssize_t rpos, wpos = 0; + utf8proc_int32_t uc; + if (options & UTF8PROC_CHARBOUND) { + for (rpos = 0; rpos < length; rpos++) { + uc = buffer[rpos]; + wpos += unsafe_encode_char(uc, ((utf8proc_uint8_t *)buffer) + wpos); + } + } else { + for (rpos = 0; rpos < length; rpos++) { + uc = buffer[rpos]; + wpos += utf8proc_encode_char(uc, ((utf8proc_uint8_t *)buffer) + wpos); + } + } + ((utf8proc_uint8_t *)buffer)[wpos] = 0; + return wpos; + } +} + +UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_map( + const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, utf8proc_uint8_t **dstptr, utf8proc_option_t options +) { + utf8proc_int32_t *buffer; + utf8proc_ssize_t result; + *dstptr = NULL; + result = utf8proc_decompose(str, strlen, NULL, 0, options); + if (result < 0) return result; + buffer = (utf8proc_int32_t *) malloc(result * sizeof(utf8proc_int32_t) + 1); + if (!buffer) return UTF8PROC_ERROR_NOMEM; + result = utf8proc_decompose(str, strlen, buffer, result, options); + if (result < 0) { + free(buffer); + return result; + } + result = utf8proc_reencode(buffer, result, options); + if (result < 0) { + free(buffer); + return result; + } + { + utf8proc_int32_t *newptr; + newptr = (utf8proc_int32_t *) realloc(buffer, (size_t)result+1); + if (newptr) buffer = newptr; + } + *dstptr = (utf8proc_uint8_t *)buffer; + return result; +} + +UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFD(const utf8proc_uint8_t *str) { + utf8proc_uint8_t *retval; + utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE | + UTF8PROC_DECOMPOSE); + return retval; +} + +UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFC(const utf8proc_uint8_t *str) { + utf8proc_uint8_t *retval; + utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE | + UTF8PROC_COMPOSE); + return retval; +} + +UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFKD(const utf8proc_uint8_t *str) { + utf8proc_uint8_t *retval; + utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE | + UTF8PROC_DECOMPOSE | UTF8PROC_COMPAT); + return retval; +} + +UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFKC(const utf8proc_uint8_t *str) { + utf8proc_uint8_t *retval; + utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE | + UTF8PROC_COMPOSE | UTF8PROC_COMPAT); + return retval; +} + -- cgit v1.2.3