mirror of
https://github.com/Unidata/netcdf-c.git
synced 2024-12-21 08:39:46 +08:00
1a7531392f
Primary fixes to get -ansi to work. 1. Convert all '//' C++ style comments to /*...*/ or to use #if 0...#endif 2. It turns out that when -ansi is specified, then a number of functions no longer are defined in the header -- but they are still in the .so file.<br> The big example is strdup(). So, added code to include/ncconfig.h to define externs for those missing functions that occur in more than one place. These are enabled if !_WIN32 && __STDC__ == 1 (__STDC__ is supposed to be the equivalent compile time flag to -ansi). Note that this requires config.h (which references ncconfig.h) to be included in files where it is currently not included. Single uses will be only in the file that uses them. 3. Added mmap test for the MAP_ANONYMOUS flag to configure.ac. Apparently this is not always defined with -ansi. 4. fix some large integer constants in nc_test4/tst_atts3.c and nc_test4/tst_filterparser.c to avoid compiler complaints. 5. fix a double constant in nc_test4/tst_filterparser.c to avoid compiler complaints. [Note I suspect #4 and #5 will be a problem on big-endian machines, but we have no way to test] Misc. Changes: 1. convert more instances of _MSC_VER to _WIN32. 2. added some debugging code to include/nctestserver.h 3. added comment about libdispatch/drc.c always being compiled. 4. modify parser generation in ncgen to remove unneeded files.
761 lines
30 KiB
C
761 lines
30 KiB
C
/* -*- mode: c; c-basic-offset: 2; tab-width: 2; indent-tabs-mode: nil -*- */
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/*
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* Copyright (c) 2015 Steven G. Johnson, Jiahao Chen, Peter Colberg, Tony Kelman, Scott P. Jones, and other contributors.
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* Copyright (c) 2009 Public Software Group e. V., Berlin, Germany
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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/*
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* This library contains derived data from a modified version of the
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* Unicode data files.
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*
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* The original data files are available at
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* http://www.unicode.org/Public/UNIDATA/
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*
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* Please notice the copyright statement in the file "utf8proc_data.c".
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*/
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/*
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* File name: utf8proc.c
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*
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* Description:
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* Implementation of libutf8proc.
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*/
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#include "utf8proc.h"
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#include "utf8proc_data.c"
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/**
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* Array containing the byte lengths of a UTF-8 encoded codepoint based
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* on the first byte.
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*/
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const nc_utf8proc_int8_t nc_utf8proc_utf8class[256] = {
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
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4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0 };
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#define UTF8PROC_HANGUL_SBASE 0xAC00
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#define UTF8PROC_HANGUL_LBASE 0x1100
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#define UTF8PROC_HANGUL_VBASE 0x1161
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#define UTF8PROC_HANGUL_TBASE 0x11A7
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#define UTF8PROC_HANGUL_LCOUNT 19
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#define UTF8PROC_HANGUL_VCOUNT 21
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#define UTF8PROC_HANGUL_TCOUNT 28
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#define UTF8PROC_HANGUL_NCOUNT 588
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#define UTF8PROC_HANGUL_SCOUNT 11172
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/* END is exclusive */
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#define UTF8PROC_HANGUL_L_START 0x1100
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#define UTF8PROC_HANGUL_L_END 0x115A
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#define UTF8PROC_HANGUL_L_FILLER 0x115F
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#define UTF8PROC_HANGUL_V_START 0x1160
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#define UTF8PROC_HANGUL_V_END 0x11A3
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#define UTF8PROC_HANGUL_T_START 0x11A8
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#define UTF8PROC_HANGUL_T_END 0x11FA
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#define UTF8PROC_HANGUL_S_START 0xAC00
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#define UTF8PROC_HANGUL_S_END 0xD7A4
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/* Should follow semantic-versioning rules (semver.org) based on API
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compatibility. (Note that the shared-library version number will
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be different, being based on ABI compatibility.): */
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#define STRINGIZEx(x) #x
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#define STRINGIZE(x) STRINGIZEx(x)
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const char *nc_utf8proc_version(void) {
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return STRINGIZE(UTF8PROC_VERSION_MAJOR) "." STRINGIZE(UTF8PROC_VERSION_MINOR) "." STRINGIZE(UTF8PROC_VERSION_PATCH) "";
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}
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const char *nc_utf8proc_errmsg(nc_utf8proc_ssize_t errcode) {
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switch (errcode) {
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case UTF8PROC_ERROR_NOMEM:
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return "Memory for processing UTF-8 data could not be allocated.";
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case UTF8PROC_ERROR_OVERFLOW:
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return "UTF-8 string is too long to be processed.";
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case UTF8PROC_ERROR_INVALIDUTF8:
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return "Invalid UTF-8 string";
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case UTF8PROC_ERROR_NOTASSIGNED:
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return "Unassigned Unicode code point found in UTF-8 string.";
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case UTF8PROC_ERROR_INVALIDOPTS:
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return "Invalid options for UTF-8 processing chosen.";
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default:
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return "An unknown error occurred while processing UTF-8 data.";
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}
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}
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#define utf_cont(ch) (((ch) & 0xc0) == 0x80)
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nc_utf8proc_ssize_t nc_utf8proc_iterate(
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const nc_utf8proc_uint8_t *str, nc_utf8proc_ssize_t strlen, nc_utf8proc_int32_t *dst
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) {
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nc_utf8proc_uint32_t uc;
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const nc_utf8proc_uint8_t *end;
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*dst = -1;
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if (!strlen) return 0;
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end = str + ((strlen < 0) ? 4 : strlen);
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uc = *str++;
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if (uc < 0x80) {
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*dst = uc;
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return 1;
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}
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/* Must be between 0xc2 and 0xf4 inclusive to be valid */
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if ((uc - 0xc2) > (0xf4-0xc2)) return UTF8PROC_ERROR_INVALIDUTF8;
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if (uc < 0xe0) { /* 2-byte sequence */
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/* Must have valid continuation character */
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if (str >= end || !utf_cont(*str)) return UTF8PROC_ERROR_INVALIDUTF8;
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*dst = ((uc & 0x1f)<<6) | (*str & 0x3f);
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return 2;
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}
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if (uc < 0xf0) { /* 3-byte sequence */
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if ((str + 1 >= end) || !utf_cont(*str) || !utf_cont(str[1]))
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return UTF8PROC_ERROR_INVALIDUTF8;
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/* Check for surrogate chars */
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if (uc == 0xed && *str > 0x9f)
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return UTF8PROC_ERROR_INVALIDUTF8;
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uc = ((uc & 0xf)<<12) | ((*str & 0x3f)<<6) | (str[1] & 0x3f);
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if (uc < 0x800)
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return UTF8PROC_ERROR_INVALIDUTF8;
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*dst = uc;
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return 3;
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}
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/* 4-byte sequence */
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/* Must have 3 valid continuation characters */
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if ((str + 2 >= end) || !utf_cont(*str) || !utf_cont(str[1]) || !utf_cont(str[2]))
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return UTF8PROC_ERROR_INVALIDUTF8;
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/* Make sure in correct range (0x10000 - 0x10ffff) */
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if (uc == 0xf0) {
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if (*str < 0x90) return UTF8PROC_ERROR_INVALIDUTF8;
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} else if (uc == 0xf4) {
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if (*str > 0x8f) return UTF8PROC_ERROR_INVALIDUTF8;
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}
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*dst = ((uc & 7)<<18) | ((*str & 0x3f)<<12) | ((str[1] & 0x3f)<<6) | (str[2] & 0x3f);
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return 4;
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}
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nc_utf8proc_bool nc_utf8proc_codepoint_valid(nc_utf8proc_int32_t uc) {
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return (((nc_utf8proc_uint32_t)uc)-0xd800 > 0x07ff) && ((nc_utf8proc_uint32_t)uc < 0x110000);
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}
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nc_utf8proc_ssize_t nc_utf8proc_encode_char(nc_utf8proc_int32_t uc, nc_utf8proc_uint8_t *dst) {
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if (uc < 0x00) {
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return 0;
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} else if (uc < 0x80) {
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dst[0] = (nc_utf8proc_uint8_t) uc;
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return 1;
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} else if (uc < 0x800) {
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dst[0] = (nc_utf8proc_uint8_t)(0xC0 + (uc >> 6));
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dst[1] = (nc_utf8proc_uint8_t)(0x80 + (uc & 0x3F));
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return 2;
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/* Note: we allow encoding 0xd800-0xdfff here, so as not to change */
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/* the API, however, these are actually invalid in UTF-8 */
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} else if (uc < 0x10000) {
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dst[0] = (nc_utf8proc_uint8_t)(0xE0 + (uc >> 12));
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dst[1] = (nc_utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F));
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dst[2] = (nc_utf8proc_uint8_t)(0x80 + (uc & 0x3F));
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return 3;
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} else if (uc < 0x110000) {
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dst[0] = (nc_utf8proc_uint8_t)(0xF0 + (uc >> 18));
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dst[1] = (nc_utf8proc_uint8_t)(0x80 + ((uc >> 12) & 0x3F));
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dst[2] = (nc_utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F));
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dst[3] = (nc_utf8proc_uint8_t)(0x80 + (uc & 0x3F));
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return 4;
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} else return 0;
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}
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/* internal "unsafe" version that does not check whether uc is in range */
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static nc_utf8proc_ssize_t nc_unsafe_encode_char(nc_utf8proc_int32_t uc, nc_utf8proc_uint8_t *dst) {
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if (uc < 0x00) {
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return 0;
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} else if (uc < 0x80) {
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dst[0] = (nc_utf8proc_uint8_t)uc;
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return 1;
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} else if (uc < 0x800) {
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dst[0] = (nc_utf8proc_uint8_t)(0xC0 + (uc >> 6));
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dst[1] = (nc_utf8proc_uint8_t)(0x80 + (uc & 0x3F));
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return 2;
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} else if (uc == 0xFFFF) {
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dst[0] = (nc_utf8proc_uint8_t)0xFF;
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return 1;
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} else if (uc == 0xFFFE) {
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dst[0] = (nc_utf8proc_uint8_t)0xFE;
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return 1;
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} else if (uc < 0x10000) {
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dst[0] = (nc_utf8proc_uint8_t)(0xE0 + (uc >> 12));
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dst[1] = (nc_utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F));
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dst[2] = (nc_utf8proc_uint8_t)(0x80 + (uc & 0x3F));
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return 3;
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} else if (uc < 0x110000) {
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dst[0] = (nc_utf8proc_uint8_t)(0xF0 + (uc >> 18));
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dst[1] = (nc_utf8proc_uint8_t)(0x80 + ((uc >> 12) & 0x3F));
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dst[2] = (nc_utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F));
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dst[3] = (nc_utf8proc_uint8_t)(0x80 + (uc & 0x3F));
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return 4;
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} else return 0;
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}
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/* internal "unsafe" version that does not check whether uc is in range */
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static const nc_utf8proc_property_t *nc_unsafe_get_property(nc_utf8proc_int32_t uc) {
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/* ASSERT: uc >= 0 && uc < 0x110000 */
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return nc_utf8proc_properties + (
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nc_utf8proc_stage2table[
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nc_utf8proc_stage1table[uc >> 8] + (uc & 0xFF)
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]
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);
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}
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const nc_utf8proc_property_t *nc_utf8proc_get_property(nc_utf8proc_int32_t uc) {
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return uc < 0 || uc >= 0x110000 ? nc_utf8proc_properties : nc_unsafe_get_property(uc);
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}
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/* return whether there is a grapheme break between boundclasses lbc and tbc
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(according to the definition of extended grapheme clusters)
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Rule numbering refers to TR29 Version 29 (Unicode 9.0.0):
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http://www.unicode.org/reports/tr29/tr29-29.html
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CAVEATS:
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Please note that evaluation of GB10 (grapheme breaks between emoji zwj sequences)
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and GB 12/13 (regional indicator code points) require knowledge of previous characters
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and are thus not handled by this function. This may result in an incorrect break before
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an E_Modifier class codepoint and an incorrectly missing break between two
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REGIONAL_INDICATOR class code points if such support does not exist in the caller.
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See the special support in grapheme_break_extended, for required bookkeeping by the caller.
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*/
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static nc_utf8proc_bool nc_grapheme_break_simple(int lbc, int tbc) {
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return
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(lbc == UTF8PROC_BOUNDCLASS_START) ? true : /* GB1 */
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(lbc == UTF8PROC_BOUNDCLASS_CR && /* GB3 */
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tbc == UTF8PROC_BOUNDCLASS_LF) ? false : /* --- */
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(lbc >= UTF8PROC_BOUNDCLASS_CR && lbc <= UTF8PROC_BOUNDCLASS_CONTROL) ? true : /* GB4 */
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(tbc >= UTF8PROC_BOUNDCLASS_CR && tbc <= UTF8PROC_BOUNDCLASS_CONTROL) ? true : /* GB5 */
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(lbc == UTF8PROC_BOUNDCLASS_L && /* GB6 */
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(tbc == UTF8PROC_BOUNDCLASS_L || /* --- */
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tbc == UTF8PROC_BOUNDCLASS_V || /* --- */
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tbc == UTF8PROC_BOUNDCLASS_LV || /* --- */
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tbc == UTF8PROC_BOUNDCLASS_LVT)) ? false : /* --- */
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((lbc == UTF8PROC_BOUNDCLASS_LV || /* GB7 */
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lbc == UTF8PROC_BOUNDCLASS_V) && /* --- */
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(tbc == UTF8PROC_BOUNDCLASS_V || /* --- */
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tbc == UTF8PROC_BOUNDCLASS_T)) ? false : /* --- */
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((lbc == UTF8PROC_BOUNDCLASS_LVT || /* GB8 */
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lbc == UTF8PROC_BOUNDCLASS_T) && /* --- */
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tbc == UTF8PROC_BOUNDCLASS_T) ? false : /* --- */
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(tbc == UTF8PROC_BOUNDCLASS_EXTEND || /* GB9 */
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tbc == UTF8PROC_BOUNDCLASS_ZWJ || /* --- */
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tbc == UTF8PROC_BOUNDCLASS_SPACINGMARK || /* GB9a */
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lbc == UTF8PROC_BOUNDCLASS_PREPEND) ? false : /* GB9b */
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((lbc == UTF8PROC_BOUNDCLASS_E_BASE || /* GB10 (requires additional handling below) */
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lbc == UTF8PROC_BOUNDCLASS_E_BASE_GAZ) && /* ---- */
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tbc == UTF8PROC_BOUNDCLASS_E_MODIFIER) ? false : /* ---- */
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(lbc == UTF8PROC_BOUNDCLASS_ZWJ && /* GB11 */
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(tbc == UTF8PROC_BOUNDCLASS_GLUE_AFTER_ZWJ || /* ---- */
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tbc == UTF8PROC_BOUNDCLASS_E_BASE_GAZ)) ? false : /* ---- */
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(lbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR && /* GB12/13 (requires additional handling below) */
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tbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR) ? false : /* ---- */
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true; /* GB999 */
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}
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static nc_utf8proc_bool nc_grapheme_break_extended(int lbc, int tbc, nc_utf8proc_int32_t *state)
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{
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int lbc_override = lbc;
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nc_utf8proc_bool break_permitted;
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if (state && *state != UTF8PROC_BOUNDCLASS_START)
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lbc_override = *state;
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break_permitted = nc_grapheme_break_simple(lbc_override, tbc);
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if (state) {
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/* Special support for GB 12/13 made possible by GB999. After two RI */
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/* class codepoints we want to force a break. Do this by resetting the */
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/* second RI's bound class to UTF8PROC_BOUNDCLASS_OTHER, to force a break */
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/* after that character according to GB999 (unless of course such a break is */
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/* forbidden by a different rule such as GB9). */
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if (*state == tbc && tbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR)
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*state = UTF8PROC_BOUNDCLASS_OTHER;
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/* Special support for GB10. Fold any EXTEND codepoints into the previous */
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/* boundclass if we're dealing with an emoji base boundclass. */
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else if ((*state == UTF8PROC_BOUNDCLASS_E_BASE ||
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*state == UTF8PROC_BOUNDCLASS_E_BASE_GAZ) &&
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tbc == UTF8PROC_BOUNDCLASS_EXTEND)
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*state = UTF8PROC_BOUNDCLASS_E_BASE;
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else
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*state = tbc;
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}
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return break_permitted;
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}
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nc_utf8proc_bool nc_utf8proc_grapheme_break_stateful(
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nc_utf8proc_int32_t c1, nc_utf8proc_int32_t c2, nc_utf8proc_int32_t *state) {
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return nc_grapheme_break_extended(nc_utf8proc_get_property(c1)->boundclass,
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nc_utf8proc_get_property(c2)->boundclass,
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state);
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}
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nc_utf8proc_bool nc_utf8proc_grapheme_break(
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nc_utf8proc_int32_t c1, nc_utf8proc_int32_t c2) {
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return nc_utf8proc_grapheme_break_stateful(c1, c2, NULL);
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}
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static nc_utf8proc_int32_t nc_seqindex_decode_entry(const nc_utf8proc_uint16_t **entry)
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{
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nc_utf8proc_int32_t entry_cp = **entry;
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if ((entry_cp & 0xF800) == 0xD800) {
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*entry = *entry + 1;
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entry_cp = ((entry_cp & 0x03FF) << 10) | (**entry & 0x03FF);
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entry_cp += 0x10000;
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}
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return entry_cp;
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}
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static nc_utf8proc_int32_t nc_seqindex_decode_index(const nc_utf8proc_uint32_t seqindex)
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{
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const nc_utf8proc_uint16_t *entry = &nc_utf8proc_sequences[seqindex];
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return nc_seqindex_decode_entry(&entry);
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}
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static nc_utf8proc_ssize_t nc_seqindex_write_char_decomposed(nc_utf8proc_uint16_t seqindex, nc_utf8proc_int32_t *dst, nc_utf8proc_ssize_t bufsize, nc_utf8proc_option_t options, int *last_boundclass) {
|
|
nc_utf8proc_ssize_t written = 0;
|
|
const nc_utf8proc_uint16_t *entry = &nc_utf8proc_sequences[seqindex & 0x1FFF];
|
|
int len = seqindex >> 13;
|
|
if (len >= 7) {
|
|
len = *entry;
|
|
entry++;
|
|
}
|
|
for (; len >= 0; entry++, len--) {
|
|
nc_utf8proc_int32_t entry_cp = nc_seqindex_decode_entry(&entry);
|
|
|
|
written += nc_utf8proc_decompose_char(entry_cp, dst+written,
|
|
(bufsize > written) ? (bufsize - written) : 0, options,
|
|
last_boundclass);
|
|
if (written < 0) return UTF8PROC_ERROR_OVERFLOW;
|
|
}
|
|
return written;
|
|
}
|
|
|
|
nc_utf8proc_int32_t nc_utf8proc_tolower(nc_utf8proc_int32_t c)
|
|
{
|
|
nc_utf8proc_int32_t cl = nc_utf8proc_get_property(c)->lowercase_seqindex;
|
|
return cl != UINT16_MAX ? nc_seqindex_decode_index(cl) : c;
|
|
}
|
|
|
|
nc_utf8proc_int32_t nc_utf8proc_toupper(nc_utf8proc_int32_t c)
|
|
{
|
|
nc_utf8proc_int32_t cu = nc_utf8proc_get_property(c)->uppercase_seqindex;
|
|
return cu != UINT16_MAX ? nc_seqindex_decode_index(cu) : c;
|
|
}
|
|
|
|
nc_utf8proc_int32_t nc_utf8proc_totitle(nc_utf8proc_int32_t c)
|
|
{
|
|
nc_utf8proc_int32_t cu = nc_utf8proc_get_property(c)->titlecase_seqindex;
|
|
return cu != UINT16_MAX ? nc_seqindex_decode_index(cu) : c;
|
|
}
|
|
|
|
/* return a character width analogous to wcwidth (except portable and
|
|
hopefully less buggy than most system wcwidth functions). */
|
|
int nc_utf8proc_charwidth(nc_utf8proc_int32_t c) {
|
|
return nc_utf8proc_get_property(c)->charwidth;
|
|
}
|
|
|
|
nc_utf8proc_category_t nc_utf8proc_category(nc_utf8proc_int32_t c) {
|
|
return nc_utf8proc_get_property(c)->category;
|
|
}
|
|
|
|
const char *nc_utf8proc_category_string(nc_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[nc_utf8proc_category(c)];
|
|
}
|
|
|
|
#define nc_utf8proc_decompose_lump(replacement_uc) \
|
|
return nc_utf8proc_decompose_char((replacement_uc), dst, bufsize, \
|
|
options & ~UTF8PROC_LUMP, last_boundclass)
|
|
|
|
nc_utf8proc_ssize_t nc_utf8proc_decompose_char(nc_utf8proc_int32_t uc, nc_utf8proc_int32_t *dst, nc_utf8proc_ssize_t bufsize, nc_utf8proc_option_t options, int *last_boundclass) {
|
|
const nc_utf8proc_property_t *property;
|
|
nc_utf8proc_propval_t category;
|
|
nc_utf8proc_int32_t hangul_sindex;
|
|
if (uc < 0 || uc >= 0x110000) return UTF8PROC_ERROR_NOTASSIGNED;
|
|
property = nc_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) {
|
|
nc_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) nc_utf8proc_decompose_lump(0x0020);
|
|
if (uc == 0x2018 || uc == 0x2019 || uc == 0x02BC || uc == 0x02C8)
|
|
nc_utf8proc_decompose_lump(0x0027);
|
|
if (category == UTF8PROC_CATEGORY_PD || uc == 0x2212)
|
|
nc_utf8proc_decompose_lump(0x002D);
|
|
if (uc == 0x2044 || uc == 0x2215) nc_utf8proc_decompose_lump(0x002F);
|
|
if (uc == 0x2236) nc_utf8proc_decompose_lump(0x003A);
|
|
if (uc == 0x2039 || uc == 0x2329 || uc == 0x3008)
|
|
nc_utf8proc_decompose_lump(0x003C);
|
|
if (uc == 0x203A || uc == 0x232A || uc == 0x3009)
|
|
nc_utf8proc_decompose_lump(0x003E);
|
|
if (uc == 0x2216) nc_utf8proc_decompose_lump(0x005C);
|
|
if (uc == 0x02C4 || uc == 0x02C6 || uc == 0x2038 || uc == 0x2303)
|
|
nc_utf8proc_decompose_lump(0x005E);
|
|
if (category == UTF8PROC_CATEGORY_PC || uc == 0x02CD)
|
|
nc_utf8proc_decompose_lump(0x005F);
|
|
if (uc == 0x02CB) nc_utf8proc_decompose_lump(0x0060);
|
|
if (uc == 0x2223) nc_utf8proc_decompose_lump(0x007C);
|
|
if (uc == 0x223C) nc_utf8proc_decompose_lump(0x007E);
|
|
if ((options & UTF8PROC_NLF2LS) && (options & UTF8PROC_NLF2PS)) {
|
|
if (category == UTF8PROC_CATEGORY_ZL ||
|
|
category == UTF8PROC_CATEGORY_ZP)
|
|
nc_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 nc_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 nc_seqindex_write_char_decomposed(property->decomp_seqindex, dst, bufsize, options, last_boundclass);
|
|
}
|
|
}
|
|
if (options & UTF8PROC_CHARBOUND) {
|
|
nc_utf8proc_bool boundary;
|
|
int tbc = property->boundclass;
|
|
boundary = nc_grapheme_break_extended(*last_boundclass, tbc, last_boundclass);
|
|
if (boundary) {
|
|
if (bufsize >= 1) dst[0] = 0xFFFF;
|
|
if (bufsize >= 2) dst[1] = uc;
|
|
return 2;
|
|
}
|
|
}
|
|
if (bufsize >= 1) *dst = uc;
|
|
return 1;
|
|
}
|
|
|
|
nc_utf8proc_ssize_t nc_utf8proc_decompose(
|
|
const nc_utf8proc_uint8_t *str, nc_utf8proc_ssize_t strlen,
|
|
nc_utf8proc_int32_t *buffer, nc_utf8proc_ssize_t bufsize, nc_utf8proc_option_t options
|
|
) {
|
|
return nc_utf8proc_decompose_custom(str, strlen, buffer, bufsize, options, NULL, NULL);
|
|
}
|
|
|
|
nc_utf8proc_ssize_t nc_utf8proc_decompose_custom(
|
|
const nc_utf8proc_uint8_t *str, nc_utf8proc_ssize_t strlen,
|
|
nc_utf8proc_int32_t *buffer, nc_utf8proc_ssize_t bufsize, nc_utf8proc_option_t options,
|
|
nc_utf8proc_custom_func custom_func, void *custom_data
|
|
) {
|
|
/* strlen will be ignored, if UTF8PROC_NULLTERM is set in options */
|
|
nc_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;
|
|
{
|
|
nc_utf8proc_int32_t uc;
|
|
nc_utf8proc_ssize_t rpos = 0;
|
|
nc_utf8proc_ssize_t decomp_result;
|
|
int boundclass = UTF8PROC_BOUNDCLASS_START;
|
|
while (1) {
|
|
if (options & UTF8PROC_NULLTERM) {
|
|
rpos += nc_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 += nc_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 = nc_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 > (nc_utf8proc_ssize_t)(SSIZE_MAX/sizeof(nc_utf8proc_int32_t)/2))
|
|
return UTF8PROC_ERROR_OVERFLOW;
|
|
}
|
|
}
|
|
if ((options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) && bufsize >= wpos) {
|
|
nc_utf8proc_ssize_t pos = 0;
|
|
while (pos < wpos-1) {
|
|
nc_utf8proc_int32_t uc1, uc2;
|
|
const nc_utf8proc_property_t *property1, *property2;
|
|
uc1 = buffer[pos];
|
|
uc2 = buffer[pos+1];
|
|
property1 = nc_unsafe_get_property(uc1);
|
|
property2 = nc_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;
|
|
}
|
|
|
|
nc_utf8proc_ssize_t nc_utf8proc_normalize_utf32(nc_utf8proc_int32_t *buffer, nc_utf8proc_ssize_t length, nc_utf8proc_option_t options) {
|
|
/* UTF8PROC_NULLTERM option will be ignored, 'length' is never ignored */
|
|
if (options & (UTF8PROC_NLF2LS | UTF8PROC_NLF2PS | UTF8PROC_STRIPCC)) {
|
|
nc_utf8proc_ssize_t rpos;
|
|
nc_utf8proc_ssize_t wpos = 0;
|
|
nc_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) {
|
|
nc_utf8proc_int32_t *starter = NULL;
|
|
nc_utf8proc_int32_t current_char;
|
|
const nc_utf8proc_property_t *starter_property = NULL, *current_property;
|
|
nc_utf8proc_propval_t max_combining_class = -1;
|
|
nc_utf8proc_ssize_t rpos;
|
|
nc_utf8proc_ssize_t wpos = 0;
|
|
nc_utf8proc_int32_t composition;
|
|
for (rpos = 0; rpos < length; rpos++) {
|
|
current_char = buffer[rpos];
|
|
current_property = nc_unsafe_get_property(current_char);
|
|
if (starter && current_property->combining_class > max_combining_class) {
|
|
/* combination perhaps possible */
|
|
nc_utf8proc_int32_t hangul_lindex;
|
|
nc_utf8proc_int32_t hangul_sindex;
|
|
hangul_lindex = *starter - UTF8PROC_HANGUL_LBASE;
|
|
if (hangul_lindex >= 0 && hangul_lindex < UTF8PROC_HANGUL_LCOUNT) {
|
|
nc_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) {
|
|
nc_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 = nc_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) - nc_utf8proc_combinations[sidx];
|
|
if (idx >= 0 && idx <= nc_utf8proc_combinations[sidx + 1] ) {
|
|
idx += sidx + 2;
|
|
if (current_property->comb_index & 0x4000) {
|
|
composition = (nc_utf8proc_combinations[idx] << 16) | nc_utf8proc_combinations[idx+1];
|
|
} else
|
|
composition = nc_utf8proc_combinations[idx];
|
|
|
|
if (composition > 0 && (!(options & UTF8PROC_STABLE) ||
|
|
!(nc_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;
|
|
}
|
|
|
|
nc_utf8proc_ssize_t nc_utf8proc_reencode(nc_utf8proc_int32_t *buffer, nc_utf8proc_ssize_t length, nc_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 = nc_utf8proc_normalize_utf32(buffer, length, options);
|
|
if (length < 0) return length;
|
|
{
|
|
nc_utf8proc_ssize_t rpos, wpos = 0;
|
|
nc_utf8proc_int32_t uc;
|
|
if (options & UTF8PROC_CHARBOUND) {
|
|
for (rpos = 0; rpos < length; rpos++) {
|
|
uc = buffer[rpos];
|
|
wpos += nc_unsafe_encode_char(uc, ((nc_utf8proc_uint8_t *)buffer) + wpos);
|
|
}
|
|
} else {
|
|
for (rpos = 0; rpos < length; rpos++) {
|
|
uc = buffer[rpos];
|
|
wpos += nc_utf8proc_encode_char(uc, ((nc_utf8proc_uint8_t *)buffer) + wpos);
|
|
}
|
|
}
|
|
((nc_utf8proc_uint8_t *)buffer)[wpos] = 0;
|
|
return wpos;
|
|
}
|
|
}
|
|
|
|
nc_utf8proc_ssize_t nc_utf8proc_map(
|
|
const nc_utf8proc_uint8_t *str, nc_utf8proc_ssize_t strlen, nc_utf8proc_uint8_t **dstptr, nc_utf8proc_option_t options
|
|
) {
|
|
return nc_utf8proc_map_custom(str, strlen, dstptr, options, NULL, NULL);
|
|
}
|
|
|
|
nc_utf8proc_ssize_t nc_utf8proc_map_custom(
|
|
const nc_utf8proc_uint8_t *str, nc_utf8proc_ssize_t strlen, nc_utf8proc_uint8_t **dstptr, nc_utf8proc_option_t options,
|
|
nc_utf8proc_custom_func custom_func, void *custom_data
|
|
) {
|
|
nc_utf8proc_int32_t *buffer;
|
|
nc_utf8proc_ssize_t result;
|
|
*dstptr = NULL;
|
|
result = nc_utf8proc_decompose_custom(str, strlen, NULL, 0, options, custom_func, custom_data);
|
|
if (result < 0) return result;
|
|
buffer = (nc_utf8proc_int32_t *) malloc(result * sizeof(nc_utf8proc_int32_t) + 1);
|
|
if (!buffer) return UTF8PROC_ERROR_NOMEM;
|
|
result = nc_utf8proc_decompose_custom(str, strlen, buffer, result, options, custom_func, custom_data);
|
|
if (result < 0) {
|
|
free(buffer);
|
|
return result;
|
|
}
|
|
result = nc_utf8proc_reencode(buffer, result, options);
|
|
if (result < 0) {
|
|
free(buffer);
|
|
return result;
|
|
}
|
|
{
|
|
nc_utf8proc_int32_t *newptr;
|
|
newptr = (nc_utf8proc_int32_t *) realloc(buffer, (size_t)result+1);
|
|
if (newptr) buffer = newptr;
|
|
}
|
|
*dstptr = (nc_utf8proc_uint8_t *)buffer;
|
|
return result;
|
|
}
|
|
|
|
nc_utf8proc_uint8_t *nc_utf8proc_NFD(const nc_utf8proc_uint8_t *str) {
|
|
nc_utf8proc_uint8_t *retval;
|
|
nc_utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
|
|
UTF8PROC_DECOMPOSE);
|
|
return retval;
|
|
}
|
|
|
|
nc_utf8proc_uint8_t *nc_utf8proc_NFC(const nc_utf8proc_uint8_t *str) {
|
|
nc_utf8proc_uint8_t *retval;
|
|
nc_utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
|
|
UTF8PROC_COMPOSE);
|
|
return retval;
|
|
}
|
|
|
|
nc_utf8proc_uint8_t *nc_utf8proc_NFKD(const nc_utf8proc_uint8_t *str) {
|
|
nc_utf8proc_uint8_t *retval;
|
|
nc_utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
|
|
UTF8PROC_DECOMPOSE | UTF8PROC_COMPAT);
|
|
return retval;
|
|
}
|
|
|
|
nc_utf8proc_uint8_t *nc_utf8proc_NFKC(const nc_utf8proc_uint8_t *str) {
|
|
nc_utf8proc_uint8_t *retval;
|
|
nc_utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
|
|
UTF8PROC_COMPOSE | UTF8PROC_COMPAT);
|
|
return retval;
|
|
}
|