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Diffstat (limited to 'utf8proc.c')
| -rw-r--r-- | utf8proc.c | 773 |
1 files changed, 0 insertions, 773 deletions
diff --git a/utf8proc.c b/utf8proc.c deleted file mode 100644 index 297c1dc..0000000 --- a/utf8proc.c +++ /dev/null @@ -1,773 +0,0 @@ -/* -*- mode: c; c-basic-offset: 2; tab-width: 2; indent-tabs-mode: nil -*- */ -/* - * Copyright (c) 2018 Steven G. Johnson, Jiahao Chen, Peter Colberg, Tony Kelman, Scott P. Jones, and other contributors. - * 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" - -#ifndef SSIZE_MAX -#define SSIZE_MAX ((size_t)SIZE_MAX/2) -#endif -#ifndef UINT16_MAX -# define UINT16_MAX 65535U -#endif - -#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_unicode_version(void) { - return "12.1.0"; -} - -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 (str >= end || !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] = (utf8proc_uint8_t) uc; - return 1; - } else if (uc < 0x800) { - dst[0] = (utf8proc_uint8_t)(0xC0 + (uc >> 6)); - dst[1] = (utf8proc_uint8_t)(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] = (utf8proc_uint8_t)(0xE0 + (uc >> 12)); - dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F)); - dst[2] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F)); - return 3; - } else if (uc < 0x110000) { - dst[0] = (utf8proc_uint8_t)(0xF0 + (uc >> 18)); - dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 12) & 0x3F)); - dst[2] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F)); - dst[3] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F)); - return 4; - } else return 0; -} - -/* internal version used for inserting 0xff bytes between graphemes */ -static utf8proc_ssize_t charbound_encode_char(utf8proc_int32_t uc, utf8proc_uint8_t *dst) { - if (uc < 0x00) { - if (uc == -1) { /* internal value used for grapheme breaks */ - dst[0] = (utf8proc_uint8_t)0xFF; - return 1; - } - return 0; - } else if (uc < 0x80) { - dst[0] = (utf8proc_uint8_t)uc; - return 1; - } else if (uc < 0x800) { - dst[0] = (utf8proc_uint8_t)(0xC0 + (uc >> 6)); - dst[1] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F)); - return 2; - } else if (uc < 0x10000) { - dst[0] = (utf8proc_uint8_t)(0xE0 + (uc >> 12)); - dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F)); - dst[2] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F)); - return 3; - } else if (uc < 0x110000) { - dst[0] = (utf8proc_uint8_t)(0xF0 + (uc >> 18)); - dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 12) & 0x3F)); - dst[2] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F)); - dst[3] = (utf8proc_uint8_t)(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 - (according to the definition of extended grapheme clusters) - - Rule numbering refers to TR29 Version 29 (Unicode 9.0.0): - http://www.unicode.org/reports/tr29/tr29-29.html - - CAVEATS: - Please note that evaluation of GB10 (grapheme breaks between emoji zwj sequences) - and GB 12/13 (regional indicator code points) require knowledge of previous characters - and are thus not handled by this function. This may result in an incorrect break before - an E_Modifier class codepoint and an incorrectly missing break between two - REGIONAL_INDICATOR class code points if such support does not exist in the caller. - - See the special support in grapheme_break_extended, for required bookkeeping by the caller. -*/ -static utf8proc_bool grapheme_break_simple(int lbc, int tbc) { - return - (lbc == UTF8PROC_BOUNDCLASS_START) ? true : // GB1 - (lbc == UTF8PROC_BOUNDCLASS_CR && // GB3 - tbc == UTF8PROC_BOUNDCLASS_LF) ? false : // --- - (lbc >= UTF8PROC_BOUNDCLASS_CR && lbc <= UTF8PROC_BOUNDCLASS_CONTROL) ? true : // GB4 - (tbc >= UTF8PROC_BOUNDCLASS_CR && tbc <= UTF8PROC_BOUNDCLASS_CONTROL) ? true : // GB5 - (lbc == UTF8PROC_BOUNDCLASS_L && // GB6 - (tbc == UTF8PROC_BOUNDCLASS_L || // --- - tbc == UTF8PROC_BOUNDCLASS_V || // --- - tbc == UTF8PROC_BOUNDCLASS_LV || // --- - tbc == UTF8PROC_BOUNDCLASS_LVT)) ? false : // --- - ((lbc == UTF8PROC_BOUNDCLASS_LV || // GB7 - lbc == UTF8PROC_BOUNDCLASS_V) && // --- - (tbc == UTF8PROC_BOUNDCLASS_V || // --- - tbc == UTF8PROC_BOUNDCLASS_T)) ? false : // --- - ((lbc == UTF8PROC_BOUNDCLASS_LVT || // GB8 - lbc == UTF8PROC_BOUNDCLASS_T) && // --- - tbc == UTF8PROC_BOUNDCLASS_T) ? false : // --- - (tbc == UTF8PROC_BOUNDCLASS_EXTEND || // GB9 - tbc == UTF8PROC_BOUNDCLASS_ZWJ || // --- - tbc == UTF8PROC_BOUNDCLASS_SPACINGMARK || // GB9a - lbc == UTF8PROC_BOUNDCLASS_PREPEND) ? false : // GB9b - (lbc == UTF8PROC_BOUNDCLASS_E_ZWG && // GB11 (requires additional handling below) - tbc == UTF8PROC_BOUNDCLASS_EXTENDED_PICTOGRAPHIC) ? false : // ---- - (lbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR && // GB12/13 (requires additional handling below) - tbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR) ? false : // ---- - true; // GB999 -} - -static utf8proc_bool grapheme_break_extended(int lbc, int tbc, utf8proc_int32_t *state) -{ - int lbc_override = ((state && *state != UTF8PROC_BOUNDCLASS_START) - ? *state : lbc); - utf8proc_bool break_permitted = grapheme_break_simple(lbc_override, tbc); - if (state) { - // Special support for GB 12/13 made possible by GB999. After two RI - // class codepoints we want to force a break. Do this by resetting the - // second RI's bound class to UTF8PROC_BOUNDCLASS_OTHER, to force a break - // after that character according to GB999 (unless of course such a break is - // forbidden by a different rule such as GB9). - if (*state == tbc && tbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR) - *state = UTF8PROC_BOUNDCLASS_OTHER; - // Special support for GB11 (emoji extend* zwj / emoji) - else if (*state == UTF8PROC_BOUNDCLASS_EXTENDED_PICTOGRAPHIC) { - if (tbc == UTF8PROC_BOUNDCLASS_EXTEND) // fold EXTEND codepoints into emoji - *state = UTF8PROC_BOUNDCLASS_EXTENDED_PICTOGRAPHIC; - else if (tbc == UTF8PROC_BOUNDCLASS_ZWJ) - *state = UTF8PROC_BOUNDCLASS_E_ZWG; // state to record emoji+zwg combo - else - *state = tbc; - } - else - *state = tbc; - } - return break_permitted; -} - -UTF8PROC_DLLEXPORT utf8proc_bool utf8proc_grapheme_break_stateful( - utf8proc_int32_t c1, utf8proc_int32_t c2, utf8proc_int32_t *state) { - - return grapheme_break_extended(utf8proc_get_property(c1)->boundclass, - utf8proc_get_property(c2)->boundclass, - state); -} - - -UTF8PROC_DLLEXPORT utf8proc_bool utf8proc_grapheme_break( - utf8proc_int32_t c1, utf8proc_int32_t c2) { - return utf8proc_grapheme_break_stateful(c1, c2, NULL); -} - -static utf8proc_int32_t seqindex_decode_entry(const utf8proc_uint16_t **entry) -{ - utf8proc_int32_t entry_cp = **entry; - if ((entry_cp & 0xF800) == 0xD800) { - *entry = *entry + 1; - entry_cp = ((entry_cp & 0x03FF) << 10) | (**entry & 0x03FF); - entry_cp += 0x10000; - } - return entry_cp; -} - -static utf8proc_int32_t seqindex_decode_index(const utf8proc_uint32_t seqindex) -{ - const utf8proc_uint16_t *entry = &utf8proc_sequences[seqindex]; - return seqindex_decode_entry(&entry); -} - -static utf8proc_ssize_t seqindex_write_char_decomposed(utf8proc_uint16_t seqindex, utf8proc_int32_t *dst, utf8proc_ssize_t bufsize, utf8proc_option_t options, int *last_boundclass) { - utf8proc_ssize_t written = 0; - const utf8proc_uint16_t *entry = &utf8proc_sequences[seqindex & 0x1FFF]; - int len = seqindex >> 13; - if (len >= 7) { - len = *entry; - entry++; - } - for (; len >= 0; entry++, len--) { - utf8proc_int32_t entry_cp = seqindex_decode_entry(&entry); - - written += utf8proc_decompose_char(entry_cp, dst+written, - (bufsize > written) ? (bufsize - written) : 0, options, - last_boundclass); - if (written < 0) return UTF8PROC_ERROR_OVERFLOW; - } - return written; -} - -UTF8PROC_DLLEXPORT utf8proc_int32_t utf8proc_tolower(utf8proc_int32_t c) -{ - utf8proc_int32_t cl = utf8proc_get_property(c)->lowercase_seqindex; - return cl != UINT16_MAX ? seqindex_decode_index(cl) : c; -} - -UTF8PROC_DLLEXPORT utf8proc_int32_t utf8proc_toupper(utf8proc_int32_t c) -{ - utf8proc_int32_t cu = utf8proc_get_property(c)->uppercase_seqindex; - return cu != UINT16_MAX ? seqindex_decode_index(cu) : c; -} - -UTF8PROC_DLLEXPORT utf8proc_int32_t utf8proc_totitle(utf8proc_int32_t c) -{ - utf8proc_int32_t cu = utf8proc_get_property(c)->titlecase_seqindex; - return cu != UINT16_MAX ? seqindex_decode_index(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_STRIPNA) { - if (!category) 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_seqindex != UINT16_MAX) { - return seqindex_write_char_decomposed(property->casefold_seqindex, dst, bufsize, options, last_boundclass); - } - } - if (options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) { - if (property->decomp_seqindex != UINT16_MAX && - (!property->decomp_type || (options & UTF8PROC_COMPAT))) { - return seqindex_write_char_decomposed(property->decomp_seqindex, dst, bufsize, options, last_boundclass); - } - } - if (options & UTF8PROC_CHARBOUND) { - utf8proc_bool boundary; - int tbc = property->boundclass; - boundary = grapheme_break_extended(*last_boundclass, tbc, last_boundclass); - if (boundary) { - if (bufsize >= 1) dst[0] = -1; /* sentinel value for grapheme break */ - 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 -) { - return utf8proc_decompose_custom(str, strlen, buffer, bufsize, options, NULL, NULL); -} - -UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_decompose_custom( - const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, - utf8proc_int32_t *buffer, utf8proc_ssize_t bufsize, utf8proc_option_t options, - utf8proc_custom_func custom_func, void *custom_data -) { - /* 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; - } - if (custom_func != NULL) { - uc = custom_func(uc, custom_data); /* user-specified custom mapping */ - } - 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 > (utf8proc_ssize_t)(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_normalize_utf32(utf8proc_int32_t *buffer, utf8proc_ssize_t length, utf8proc_option_t options) { - /* UTF8PROC_NULLTERM option will be ignored, 'length' is never ignored */ - 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->comb_index < 0x8000 && - current_property->comb_index != UINT16_MAX && - current_property->comb_index >= 0x8000) { - int sidx = starter_property->comb_index; - int idx = current_property->comb_index & 0x3FFF; - if (idx >= utf8proc_combinations[sidx] && idx <= utf8proc_combinations[sidx + 1] ) { - idx += sidx + 2 - utf8proc_combinations[sidx]; - if (current_property->comb_index & 0x4000) { - composition = (utf8proc_combinations[idx] << 16) | utf8proc_combinations[idx+1]; - } else - composition = utf8proc_combinations[idx]; - - 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; - } - return length; -} - -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! */ - length = utf8proc_normalize_utf32(buffer, length, options); - if (length < 0) return length; - { - utf8proc_ssize_t rpos, wpos = 0; - utf8proc_int32_t uc; - if (options & UTF8PROC_CHARBOUND) { - for (rpos = 0; rpos < length; rpos++) { - uc = buffer[rpos]; - wpos += charbound_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 -) { - return utf8proc_map_custom(str, strlen, dstptr, options, NULL, NULL); -} - -UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_map_custom( - const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, utf8proc_uint8_t **dstptr, utf8proc_option_t options, - utf8proc_custom_func custom_func, void *custom_data -) { - utf8proc_int32_t *buffer; - utf8proc_ssize_t result; - *dstptr = NULL; - result = utf8proc_decompose_custom(str, strlen, NULL, 0, options, custom_func, custom_data); - 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_custom(str, strlen, buffer, result, options, custom_func, custom_data); - 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; -} - -UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFKC_Casefold(const utf8proc_uint8_t *str) { - utf8proc_uint8_t *retval; - utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE | - UTF8PROC_COMPOSE | UTF8PROC_COMPAT | UTF8PROC_CASEFOLD | UTF8PROC_IGNORE); - return retval; -} |