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md4c.c
6027 lines (5069 loc) · 206 KB
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md4c.c
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/*
* MD4C: Markdown parser for C
* (http://github.com/mity/md4c)
*
* Copyright (c) 2016-2019 Martin Mitas
*
* 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.
*/
#include "md4c.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/*****************************
*** Miscellaneous Stuff ***
*****************************/
#ifdef _MSC_VER
/* MSVC does not understand "inline" when building as pure C (not C++).
* However it understands "__inline" */
#ifndef __cplusplus
#define inline __inline
#endif
#endif
#ifdef _T
#undef _T
#endif
#if defined MD4C_USE_UTF16
#define _T(x) L##x
#else
#define _T(x) x
#endif
/* Misc. macros. */
#define SIZEOF_ARRAY(a) (sizeof(a) / sizeof(a[0]))
#define STRINGIZE_(x) #x
#define STRINGIZE(x) STRINGIZE_(x)
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
/************************
*** Internal Types ***
************************/
/* These are omnipresent so lets save some typing. */
#define CHAR MD_CHAR
#define SZ MD_SIZE
#define OFF MD_OFFSET
typedef struct MD_MARK_tag MD_MARK;
typedef struct MD_BLOCK_tag MD_BLOCK;
typedef struct MD_CONTAINER_tag MD_CONTAINER;
typedef struct MD_REF_DEF_tag MD_REF_DEF;
/* During analyzes of inline marks, we need to manage some "mark chains",
* of (yet unresolved) openers. This structure holds start/end of the chain.
* The chain internals are then realized through MD_MARK::prev and ::next.
*/
typedef struct MD_MARKCHAIN_tag MD_MARKCHAIN;
struct MD_MARKCHAIN_tag {
int head; /* Index of first mark in the chain, or -1 if empty. */
int tail; /* Index of last mark in the chain, or -1 if empty. */
};
/* Context propagated through all the parsing. */
typedef struct MD_CTX_tag MD_CTX;
struct MD_CTX_tag {
/* Immutable stuff (parameters of md_parse()). */
const CHAR* text;
SZ size;
MD_PARSER parser;
void* userdata;
/* Helper temporary growing buffer. */
CHAR* buffer;
unsigned alloc_buffer;
/* Reference definitions. */
MD_REF_DEF* ref_defs;
int n_ref_defs;
int alloc_ref_defs;
void** ref_def_hashtable;
int ref_def_hashtable_size;
/* Stack of inline/span markers.
* This is only used for parsing a single block contents but by storing it
* here we may reuse the stack for subsequent blocks; i.e. we have fewer
* (re)allocations. */
MD_MARK* marks;
int n_marks;
int alloc_marks;
#if defined MD4C_USE_UTF16
char mark_char_map[128];
#else
char mark_char_map[256];
#endif
/* For resolving of inline spans. */
MD_MARKCHAIN mark_chains[7];
#define PTR_CHAIN ctx->mark_chains[0]
#define TABLECELLBOUNDARIES ctx->mark_chains[1]
#define LOWERTHEN_OPENERS ctx->mark_chains[2]
#define ASTERISK_OPENERS ctx->mark_chains[3]
#define UNDERSCORE_OPENERS ctx->mark_chains[4]
#define TILDE_OPENERS ctx->mark_chains[5]
#define BRACKET_OPENERS ctx->mark_chains[6]
#define OPENERS_CHAIN_FIRST 2
#define OPENERS_CHAIN_LAST 6
int n_table_cell_boundaries;
/* For resolving links. */
int unresolved_link_head;
int unresolved_link_tail;
/* For block analysis.
* Notes:
* -- It holds MD_BLOCK as well as MD_LINE structures. After each
* MD_BLOCK, its (multiple) MD_LINE(s) follow.
* -- For MD_BLOCK_HTML and MD_BLOCK_CODE, MD_VERBATIMLINE(s) are used
* instead of MD_LINE(s).
*/
void* block_bytes;
MD_BLOCK* current_block;
int n_block_bytes;
int alloc_block_bytes;
/* For container block analysis. */
MD_CONTAINER* containers;
int n_containers;
int alloc_containers;
int last_line_has_list_loosening_effect;
int last_list_item_starts_with_two_blank_lines;
/* Minimal indentation to call the block "indented code block". */
unsigned code_indent_offset;
/* Contextual info for line analysis. */
SZ code_fence_length; /* For checking closing fence length. */
int html_block_type; /* For checking closing raw HTML condition. */
};
typedef enum MD_LINETYPE_tag MD_LINETYPE;
enum MD_LINETYPE_tag {
MD_LINE_BLANK,
MD_LINE_HR,
MD_LINE_ATXHEADER,
MD_LINE_SETEXTHEADER,
MD_LINE_SETEXTUNDERLINE,
MD_LINE_INDENTEDCODE,
MD_LINE_FENCEDCODE,
MD_LINE_HTML,
MD_LINE_TEXT,
MD_LINE_TABLE,
MD_LINE_TABLEUNDERLINE
};
typedef struct MD_LINE_ANALYSIS_tag MD_LINE_ANALYSIS;
struct MD_LINE_ANALYSIS_tag {
MD_LINETYPE type : 16;
unsigned data : 16;
OFF beg;
OFF end;
unsigned indent; /* Indentation level. */
};
typedef struct MD_LINE_tag MD_LINE;
struct MD_LINE_tag {
OFF beg;
OFF end;
};
typedef struct MD_VERBATIMLINE_tag MD_VERBATIMLINE;
struct MD_VERBATIMLINE_tag {
OFF beg;
OFF end;
OFF indent;
};
/*******************
*** Debugging ***
*******************/
#define MD_LOG(msg) \
do { \
if(ctx->parser.debug_log != NULL) \
ctx->parser.debug_log((msg), ctx->userdata); \
} while(0)
#ifdef DEBUG
#define MD_ASSERT(cond) \
do { \
if(!(cond)) { \
MD_LOG(__FILE__ ":" STRINGIZE(__LINE__) ": " \
"Assertion '" STRINGIZE(cond) "' failed."); \
exit(1); \
} \
} while(0)
#define MD_UNREACHABLE() MD_ASSERT(1 == 0)
#else
#ifdef __GNUC__
#define MD_ASSERT(cond) do { if(!(cond)) __builtin_unreachable(); } while(0)
#define MD_UNREACHABLE() do { __builtin_unreachable(); } while(0)
#elif defined _MSC_VER && _MSC_VER > 120
#define MD_ASSERT(cond) do { __assume(cond); } while(0)
#define MD_UNREACHABLE() do { __assume(0); } while(0)
#else
#define MD_ASSERT(cond) do {} while(0)
#define MD_UNREACHABLE() do {} while(0)
#endif
#endif
/*****************
*** Helpers ***
*****************/
/* Character accessors. */
#define CH(off) (ctx->text[(off)])
#define STR(off) (ctx->text + (off))
/* Character classification.
* Note we assume ASCII compatibility of code points < 128 here. */
#define ISIN_(ch, ch_min, ch_max) ((ch_min) <= (unsigned)(ch) && (unsigned)(ch) <= (ch_max))
#define ISANYOF_(ch, palette) (md_strchr((palette), (ch)) != NULL)
#define ISANYOF2_(ch, ch1, ch2) ((ch) == (ch1) || (ch) == (ch2))
#define ISANYOF3_(ch, ch1, ch2, ch3) ((ch) == (ch1) || (ch) == (ch2) || (ch) == (ch3))
#define ISASCII_(ch) ((unsigned)(ch) <= 127)
#define ISBLANK_(ch) (ISANYOF2_((ch), _T(' '), _T('\t')))
#define ISNEWLINE_(ch) (ISANYOF2_((ch), _T('\r'), _T('\n')))
#define ISWHITESPACE_(ch) (ISBLANK_(ch) || ISANYOF2_((ch), _T('\v'), _T('\f')))
#define ISCNTRL_(ch) ((unsigned)(ch) <= 31 || (unsigned)(ch) == 127)
#define ISPUNCT_(ch) (ISIN_(ch, 33, 47) || ISIN_(ch, 58, 64) || ISIN_(ch, 91, 96) || ISIN_(ch, 123, 126))
#define ISUPPER_(ch) (ISIN_(ch, _T('A'), _T('Z')))
#define ISLOWER_(ch) (ISIN_(ch, _T('a'), _T('z')))
#define ISALPHA_(ch) (ISUPPER_(ch) || ISLOWER_(ch))
#define ISDIGIT_(ch) (ISIN_(ch, _T('0'), _T('9')))
#define ISXDIGIT_(ch) (ISDIGIT_(ch) || ISIN_(ch, _T('A'), _T('F')) || ISIN_(ch, _T('a'), _T('f')))
#define ISALNUM_(ch) (ISALPHA_(ch) || ISDIGIT_(ch))
#define ISANYOF(off, palette) ISANYOF_(CH(off), (palette))
#define ISANYOF2(off, ch1, ch2) ISANYOF2_(CH(off), (ch1), (ch2))
#define ISANYOF3(off, ch1, ch2, ch3) ISANYOF3_(CH(off), (ch1), (ch2), (ch3))
#define ISASCII(off) ISASCII_(CH(off))
#define ISBLANK(off) ISBLANK_(CH(off))
#define ISNEWLINE(off) ISNEWLINE_(CH(off))
#define ISWHITESPACE(off) ISWHITESPACE_(CH(off))
#define ISCNTRL(off) ISCNTRL_(CH(off))
#define ISPUNCT(off) ISPUNCT_(CH(off))
#define ISUPPER(off) ISUPPER_(CH(off))
#define ISLOWER(off) ISLOWER_(CH(off))
#define ISALPHA(off) ISALPHA_(CH(off))
#define ISDIGIT(off) ISDIGIT_(CH(off))
#define ISXDIGIT(off) ISXDIGIT_(CH(off))
#define ISALNUM(off) ISALNUM_(CH(off))
static inline const CHAR*
md_strchr(const CHAR* str, CHAR ch)
{
OFF i;
for(i = 0; str[i] != _T('\0'); i++) {
if(ch == str[i])
return (str + i);
}
return NULL;
}
/* Case insensitive check of string equality. */
static inline int
md_ascii_case_eq(const CHAR* s1, const CHAR* s2, SZ n)
{
OFF i;
for(i = 0; i < n; i++) {
CHAR ch1 = s1[i];
CHAR ch2 = s2[i];
if(ISLOWER_(ch1))
ch1 += ('A'-'a');
if(ISLOWER_(ch2))
ch2 += ('A'-'a');
if(ch1 != ch2)
return FALSE;
}
return TRUE;
}
static inline int
md_ascii_eq(const CHAR* s1, const CHAR* s2, SZ n)
{
return memcmp(s1, s2, n * sizeof(CHAR)) == 0;
}
static int
md_text_with_null_replacement(MD_CTX* ctx, MD_TEXTTYPE type, const CHAR* str, SZ size)
{
OFF off = 0;
int ret = 0;
while(1) {
while(off < size && str[off] != _T('\0'))
off++;
if(off > 0) {
ret = ctx->parser.text(type, str, off, ctx->userdata);
if(ret != 0)
return ret;
str += off;
size -= off;
off = 0;
}
if(off >= size)
return 0;
ret = ctx->parser.text(MD_TEXT_NULLCHAR, _T(""), 1, ctx->userdata);
if(ret != 0)
return ret;
off++;
}
}
#define MD_CHECK(func) \
do { \
ret = (func); \
if(ret < 0) \
goto abort; \
} while(0)
#define MD_TEMP_BUFFER(sz) \
do { \
if(sz > ctx->alloc_buffer) { \
CHAR* new_buffer; \
SZ new_size = ((sz) + (sz) / 2 + 128) & ~127; \
\
new_buffer = realloc(ctx->buffer, new_size); \
if(new_buffer == NULL) { \
MD_LOG("realloc() failed."); \
ret = -1; \
goto abort; \
} \
\
ctx->buffer = new_buffer; \
ctx->alloc_buffer = new_size; \
} \
} while(0)
#define MD_ENTER_BLOCK(type, arg) \
do { \
ret = ctx->parser.enter_block((type), (arg), ctx->userdata); \
if(ret != 0) { \
MD_LOG("Aborted from enter_block() callback."); \
goto abort; \
} \
} while(0)
#define MD_LEAVE_BLOCK(type, arg) \
do { \
ret = ctx->parser.leave_block((type), (arg), ctx->userdata); \
if(ret != 0) { \
MD_LOG("Aborted from leave_block() callback."); \
goto abort; \
} \
} while(0)
#define MD_ENTER_SPAN(type, arg) \
do { \
ret = ctx->parser.enter_span((type), (arg), ctx->userdata); \
if(ret != 0) { \
MD_LOG("Aborted from enter_span() callback."); \
goto abort; \
} \
} while(0)
#define MD_LEAVE_SPAN(type, arg) \
do { \
ret = ctx->parser.leave_span((type), (arg), ctx->userdata); \
if(ret != 0) { \
MD_LOG("Aborted from leave_span() callback."); \
goto abort; \
} \
} while(0)
#define MD_TEXT(type, str, size) \
do { \
if(size > 0) { \
ret = ctx->parser.text((type), (str), (size), ctx->userdata); \
if(ret != 0) { \
MD_LOG("Aborted from text() callback."); \
goto abort; \
} \
} \
} while(0)
#define MD_TEXT_INSECURE(type, str, size) \
do { \
if(size > 0) { \
ret = md_text_with_null_replacement(ctx, type, str, size); \
if(ret != 0) { \
MD_LOG("Aborted from text() callback."); \
goto abort; \
} \
} \
} while(0)
/*************************
*** Unicode Support ***
*************************/
typedef struct MD_UNICODE_FOLD_INFO_tag MD_UNICODE_FOLD_INFO;
struct MD_UNICODE_FOLD_INFO_tag {
int codepoints[3];
int n_codepoints;
};
#if defined MD4C_USE_UTF16 || defined MD4C_USE_UTF8
static int
md_is_unicode_whitespace__(int codepoint)
{
/* The ASCII ones are the most frequently used ones, so lets check them first. */
if(codepoint <= 0x7f)
return ISWHITESPACE_(codepoint);
/* Check for Unicode codepoints in Zs class above 127. */
if(codepoint == 0x00a0 || codepoint == 0x1680)
return TRUE;
if(0x2000 <= codepoint && codepoint <= 0x200a)
return TRUE;
if(codepoint == 0x202f || codepoint == 0x205f || codepoint == 0x3000)
return TRUE;
return FALSE;
}
static int
md_unicode_cmp__(const void* p_codepoint_a, const void* p_codepoint_b)
{
return (*(const int*)p_codepoint_a - *(const int*)p_codepoint_b);
}
static int
md_is_unicode_punct__(int codepoint)
{
/* non-ASCII (above 127) Unicode punctuation codepoints (classes
* Pc, Pd, Pe, Pf, Pi, Po, Ps).
*
* Warning: Keep the array sorted.
*/
static const int punct_list[] = {
0x00a1, 0x00a7, 0x00ab, 0x00b6, 0x00b7, 0x00bb, 0x00bf, 0x037e, 0x0387, 0x055a, 0x055b, 0x055c, 0x055d, 0x055e, 0x055f, 0x0589,
0x058a, 0x05be, 0x05c0, 0x05c3, 0x05c6, 0x05f3, 0x05f4, 0x0609, 0x060a, 0x060c, 0x060d, 0x061b, 0x061e, 0x061f, 0x066a, 0x066b,
0x066c, 0x066d, 0x06d4, 0x0700, 0x0701, 0x0702, 0x0703, 0x0704, 0x0705, 0x0706, 0x0707, 0x0708, 0x0709, 0x070a, 0x070b, 0x070c,
0x070d, 0x07f7, 0x07f8, 0x07f9, 0x0830, 0x0831, 0x0832, 0x0833, 0x0834, 0x0835, 0x0836, 0x0837, 0x0838, 0x0839, 0x083a, 0x083b,
0x083c, 0x083d, 0x083e, 0x085e, 0x0964, 0x0965, 0x0970, 0x0af0, 0x0df4, 0x0e4f, 0x0e5a, 0x0e5b, 0x0f04, 0x0f05, 0x0f06, 0x0f07,
0x0f08, 0x0f09, 0x0f0a, 0x0f0b, 0x0f0c, 0x0f0d, 0x0f0e, 0x0f0f, 0x0f10, 0x0f11, 0x0f12, 0x0f14, 0x0f3a, 0x0f3b, 0x0f3c, 0x0f3d,
0x0f85, 0x0fd0, 0x0fd1, 0x0fd2, 0x0fd3, 0x0fd4, 0x0fd9, 0x0fda, 0x104a, 0x104b, 0x104c, 0x104d, 0x104e, 0x104f, 0x10fb, 0x1360,
0x1361, 0x1362, 0x1363, 0x1364, 0x1365, 0x1366, 0x1367, 0x1368, 0x1400, 0x166d, 0x166e, 0x169b, 0x169c, 0x16eb, 0x16ec, 0x16ed,
0x1735, 0x1736, 0x17d4, 0x17d5, 0x17d6, 0x17d8, 0x17d9, 0x17da, 0x1800, 0x1801, 0x1802, 0x1803, 0x1804, 0x1805, 0x1806, 0x1807,
0x1808, 0x1809, 0x180a, 0x1944, 0x1945, 0x1a1e, 0x1a1f, 0x1aa0, 0x1aa1, 0x1aa2, 0x1aa3, 0x1aa4, 0x1aa5, 0x1aa6, 0x1aa8, 0x1aa9,
0x1aaa, 0x1aab, 0x1aac, 0x1aad, 0x1b5a, 0x1b5b, 0x1b5c, 0x1b5d, 0x1b5e, 0x1b5f, 0x1b60, 0x1bfc, 0x1bfd, 0x1bfe, 0x1bff, 0x1c3b,
0x1c3c, 0x1c3d, 0x1c3e, 0x1c3f, 0x1c7e, 0x1c7f, 0x1cc0, 0x1cc1, 0x1cc2, 0x1cc3, 0x1cc4, 0x1cc5, 0x1cc6, 0x1cc7, 0x1cd3, 0x2010,
0x2011, 0x2012, 0x2013, 0x2014, 0x2015, 0x2016, 0x2017, 0x2018, 0x2019, 0x201a, 0x201b, 0x201c, 0x201d, 0x201e, 0x201f, 0x2020,
0x2021, 0x2022, 0x2023, 0x2024, 0x2025, 0x2026, 0x2027, 0x2030, 0x2031, 0x2032, 0x2033, 0x2034, 0x2035, 0x2036, 0x2037, 0x2038,
0x2039, 0x203a, 0x203b, 0x203c, 0x203d, 0x203e, 0x203f, 0x2040, 0x2041, 0x2042, 0x2043, 0x2045, 0x2046, 0x2047, 0x2048, 0x2049,
0x204a, 0x204b, 0x204c, 0x204d, 0x204e, 0x204f, 0x2050, 0x2051, 0x2053, 0x2054, 0x2055, 0x2056, 0x2057, 0x2058, 0x2059, 0x205a,
0x205b, 0x205c, 0x205d, 0x205e, 0x207d, 0x207e, 0x208d, 0x208e, 0x2308, 0x2309, 0x230a, 0x230b, 0x2329, 0x232a, 0x2768, 0x2769,
0x276a, 0x276b, 0x276c, 0x276d, 0x276e, 0x276f, 0x2770, 0x2771, 0x2772, 0x2773, 0x2774, 0x2775, 0x27c5, 0x27c6, 0x27e6, 0x27e7,
0x27e8, 0x27e9, 0x27ea, 0x27eb, 0x27ec, 0x27ed, 0x27ee, 0x27ef, 0x2983, 0x2984, 0x2985, 0x2986, 0x2987, 0x2988, 0x2989, 0x298a,
0x298b, 0x298c, 0x298d, 0x298e, 0x298f, 0x2990, 0x2991, 0x2992, 0x2993, 0x2994, 0x2995, 0x2996, 0x2997, 0x2998, 0x29d8, 0x29d9,
0x29da, 0x29db, 0x29fc, 0x29fd, 0x2cf9, 0x2cfa, 0x2cfb, 0x2cfc, 0x2cfe, 0x2cff, 0x2d70, 0x2e00, 0x2e01, 0x2e02, 0x2e03, 0x2e04,
0x2e05, 0x2e06, 0x2e07, 0x2e08, 0x2e09, 0x2e0a, 0x2e0b, 0x2e0c, 0x2e0d, 0x2e0e, 0x2e0f, 0x2e10, 0x2e11, 0x2e12, 0x2e13, 0x2e14,
0x2e15, 0x2e16, 0x2e17, 0x2e18, 0x2e19, 0x2e1a, 0x2e1b, 0x2e1c, 0x2e1d, 0x2e1e, 0x2e1f, 0x2e20, 0x2e21, 0x2e22, 0x2e23, 0x2e24,
0x2e25, 0x2e26, 0x2e27, 0x2e28, 0x2e29, 0x2e2a, 0x2e2b, 0x2e2c, 0x2e2d, 0x2e2e, 0x2e30, 0x2e31, 0x2e32, 0x2e33, 0x2e34, 0x2e35,
0x2e36, 0x2e37, 0x2e38, 0x2e39, 0x2e3a, 0x2e3b, 0x2e3c, 0x2e3d, 0x2e3e, 0x2e3f, 0x2e40, 0x2e41, 0x2e42, 0x2e43, 0x2e44, 0x3001,
0x3002, 0x3003, 0x3008, 0x3009, 0x300a, 0x300b, 0x300c, 0x300d, 0x300e, 0x300f, 0x3010, 0x3011, 0x3014, 0x3015, 0x3016, 0x3017,
0x3018, 0x3019, 0x301a, 0x301b, 0x301c, 0x301d, 0x301e, 0x301f, 0x3030, 0x303d, 0x30a0, 0x30fb, 0xa4fe, 0xa4ff, 0xa60d, 0xa60e,
0xa60f, 0xa673, 0xa67e, 0xa6f2, 0xa6f3, 0xa6f4, 0xa6f5, 0xa6f6, 0xa6f7, 0xa874, 0xa875, 0xa876, 0xa877, 0xa8ce, 0xa8cf, 0xa8f8,
0xa8f9, 0xa8fa, 0xa8fc, 0xa92e, 0xa92f, 0xa95f, 0xa9c1, 0xa9c2, 0xa9c3, 0xa9c4, 0xa9c5, 0xa9c6, 0xa9c7, 0xa9c8, 0xa9c9, 0xa9ca,
0xa9cb, 0xa9cc, 0xa9cd, 0xa9de, 0xa9df, 0xaa5c, 0xaa5d, 0xaa5e, 0xaa5f, 0xaade, 0xaadf, 0xaaf0, 0xaaf1, 0xabeb, 0xfd3e, 0xfd3f,
0xfe10, 0xfe11, 0xfe12, 0xfe13, 0xfe14, 0xfe15, 0xfe16, 0xfe17, 0xfe18, 0xfe19, 0xfe30, 0xfe31, 0xfe32, 0xfe33, 0xfe34, 0xfe35,
0xfe36, 0xfe37, 0xfe38, 0xfe39, 0xfe3a, 0xfe3b, 0xfe3c, 0xfe3d, 0xfe3e, 0xfe3f, 0xfe40, 0xfe41, 0xfe42, 0xfe43, 0xfe44, 0xfe45,
0xfe46, 0xfe47, 0xfe48, 0xfe49, 0xfe4a, 0xfe4b, 0xfe4c, 0xfe4d, 0xfe4e, 0xfe4f, 0xfe50, 0xfe51, 0xfe52, 0xfe54, 0xfe55, 0xfe56,
0xfe57, 0xfe58, 0xfe59, 0xfe5a, 0xfe5b, 0xfe5c, 0xfe5d, 0xfe5e, 0xfe5f, 0xfe60, 0xfe61, 0xfe63, 0xfe68, 0xfe6a, 0xfe6b, 0xff01,
0xff02, 0xff03, 0xff05, 0xff06, 0xff07, 0xff08, 0xff09, 0xff0a, 0xff0c, 0xff0d, 0xff0e, 0xff0f, 0xff1a, 0xff1b, 0xff1f, 0xff20,
0xff3b, 0xff3c, 0xff3d, 0xff3f, 0xff5b, 0xff5d, 0xff5f, 0xff60, 0xff61, 0xff62, 0xff63, 0xff64, 0xff65, 0x10100, 0x10101, 0x10102,
0x1039f, 0x103d0, 0x1056f, 0x10857, 0x1091f, 0x1093f, 0x10a50, 0x10a51, 0x10a52, 0x10a53, 0x10a54, 0x10a55, 0x10a56, 0x10a57, 0x10a58, 0x10a7f,
0x10af0, 0x10af1, 0x10af2, 0x10af3, 0x10af4, 0x10af5, 0x10af6, 0x10b39, 0x10b3a, 0x10b3b, 0x10b3c, 0x10b3d, 0x10b3e, 0x10b3f, 0x10b99, 0x10b9a,
0x10b9b, 0x10b9c, 0x11047, 0x11048, 0x11049, 0x1104a, 0x1104b, 0x1104c, 0x1104d, 0x110bb, 0x110bc, 0x110be, 0x110bf, 0x110c0, 0x110c1, 0x11140,
0x11141, 0x11142, 0x11143, 0x11174, 0x11175, 0x111c5, 0x111c6, 0x111c7, 0x111c8, 0x111c9, 0x111cd, 0x111db, 0x111dd, 0x111de, 0x111df, 0x11238,
0x11239, 0x1123a, 0x1123b, 0x1123c, 0x1123d, 0x112a9, 0x1144b, 0x1144c, 0x1144d, 0x1144e, 0x1144f, 0x1145b, 0x1145d, 0x114c6, 0x115c1, 0x115c2,
0x115c3, 0x115c4, 0x115c5, 0x115c6, 0x115c7, 0x115c8, 0x115c9, 0x115ca, 0x115cb, 0x115cc, 0x115cd, 0x115ce, 0x115cf, 0x115d0, 0x115d1, 0x115d2,
0x115d3, 0x115d4, 0x115d5, 0x115d6, 0x115d7, 0x11641, 0x11642, 0x11643, 0x11660, 0x11661, 0x11662, 0x11663, 0x11664, 0x11665, 0x11666, 0x11667,
0x11668, 0x11669, 0x1166a, 0x1166b, 0x1166c, 0x1173c, 0x1173d, 0x1173e, 0x11c41, 0x11c42, 0x11c43, 0x11c44, 0x11c45, 0x11c70, 0x11c71, 0x12470,
0x12471, 0x12472, 0x12473, 0x12474, 0x16a6e, 0x16a6f, 0x16af5, 0x16b37, 0x16b38, 0x16b39, 0x16b3a, 0x16b3b, 0x16b44, 0x1bc9f, 0x1da87, 0x1da88,
0x1da89, 0x1da8a, 0x1da8b, 0x1e95e, 0x1e95f
};
/* The ASCII ones are the most frequently used ones, so lets check them first. */
if(codepoint <= 0x7f)
return ISPUNCT_(codepoint);
return (bsearch(&codepoint, punct_list, SIZEOF_ARRAY(punct_list), sizeof(int), md_unicode_cmp__) != NULL);
}
static void
md_get_unicode_fold_info(int codepoint, MD_UNICODE_FOLD_INFO* info)
{
/* This maps single codepoint within a range to a single codepoint
* within an offseted range. */
static const struct {
int min_codepoint;
int max_codepoint;
int offset;
} range_map[] = {
{ 0x00c0, 0x00d6, 32 }, { 0x00d8, 0x00de, 32 }, { 0x0388, 0x038a, 37 }, { 0x0391, 0x03a1, 32 }, { 0x03a3, 0x03ab, 32 }, { 0x0400, 0x040f, 80 },
{ 0x0410, 0x042f, 32 }, { 0x0531, 0x0556, 48 }, { 0x1f08, 0x1f0f, -8 }, { 0x1f18, 0x1f1d, -8 }, { 0x1f28, 0x1f2f, -8 }, { 0x1f38, 0x1f3f, -8 },
{ 0x1f48, 0x1f4d, -8 }, { 0x1f68, 0x1f6f, -8 }, { 0x1fc8, 0x1fcb, -86 }, { 0x2160, 0x216f, 16 }, { 0x24b6, 0x24cf, 26 }, { 0xff21, 0xff3a, 32 },
{ 0x10400, 0x10425, 40 }
};
/* This maps single codepoint to another single codepoint. */
static const struct {
int src_codepoint;
int dest_codepoint;
} single_map[] = {
{ 0x00b5, 0x03bc }, { 0x0100, 0x0101 }, { 0x0102, 0x0103 }, { 0x0104, 0x0105 }, { 0x0106, 0x0107 }, { 0x0108, 0x0109 }, { 0x010a, 0x010b }, { 0x010c, 0x010d },
{ 0x010e, 0x010f }, { 0x0110, 0x0111 }, { 0x0112, 0x0113 }, { 0x0114, 0x0115 }, { 0x0116, 0x0117 }, { 0x0118, 0x0119 }, { 0x011a, 0x011b }, { 0x011c, 0x011d },
{ 0x011e, 0x011f }, { 0x0120, 0x0121 }, { 0x0122, 0x0123 }, { 0x0124, 0x0125 }, { 0x0126, 0x0127 }, { 0x0128, 0x0129 }, { 0x012a, 0x012b }, { 0x012c, 0x012d },
{ 0x012e, 0x012f }, { 0x0132, 0x0133 }, { 0x0134, 0x0135 }, { 0x0136, 0x0137 }, { 0x0139, 0x013a }, { 0x013b, 0x013c }, { 0x013d, 0x013e }, { 0x013f, 0x0140 },
{ 0x0141, 0x0142 }, { 0x0143, 0x0144 }, { 0x0145, 0x0146 }, { 0x0147, 0x0148 }, { 0x014a, 0x014b }, { 0x014c, 0x014d }, { 0x014e, 0x014f }, { 0x0150, 0x0151 },
{ 0x0152, 0x0153 }, { 0x0154, 0x0155 }, { 0x0156, 0x0157 }, { 0x0158, 0x0159 }, { 0x015a, 0x015b }, { 0x015c, 0x015d }, { 0x015e, 0x015f }, { 0x0160, 0x0161 },
{ 0x0162, 0x0163 }, { 0x0164, 0x0165 }, { 0x0166, 0x0167 }, { 0x0168, 0x0169 }, { 0x016a, 0x016b }, { 0x016c, 0x016d }, { 0x016e, 0x016f }, { 0x0170, 0x0171 },
{ 0x0172, 0x0173 }, { 0x0174, 0x0175 }, { 0x0176, 0x0177 }, { 0x0178, 0x00ff }, { 0x0179, 0x017a }, { 0x017b, 0x017c }, { 0x017d, 0x017e }, { 0x017f, 0x0073 },
{ 0x0181, 0x0253 }, { 0x0182, 0x0183 }, { 0x0184, 0x0185 }, { 0x0186, 0x0254 }, { 0x0187, 0x0188 }, { 0x0189, 0x0256 }, { 0x018a, 0x0257 }, { 0x018b, 0x018c },
{ 0x018e, 0x01dd }, { 0x018f, 0x0259 }, { 0x0190, 0x025b }, { 0x0191, 0x0192 }, { 0x0193, 0x0260 }, { 0x0194, 0x0263 }, { 0x0196, 0x0269 }, { 0x0197, 0x0268 },
{ 0x0198, 0x0199 }, { 0x019c, 0x026f }, { 0x019d, 0x0272 }, { 0x019f, 0x0275 }, { 0x01a0, 0x01a1 }, { 0x01a2, 0x01a3 }, { 0x01a4, 0x01a5 }, { 0x01a6, 0x0280 },
{ 0x01a7, 0x01a8 }, { 0x01a9, 0x0283 }, { 0x01ac, 0x01ad }, { 0x01ae, 0x0288 }, { 0x01af, 0x01b0 }, { 0x01b1, 0x028a }, { 0x01b2, 0x028b }, { 0x01b3, 0x01b4 },
{ 0x01b5, 0x01b6 }, { 0x01b7, 0x0292 }, { 0x01b8, 0x01b9 }, { 0x01bc, 0x01bd }, { 0x01c4, 0x01c6 }, { 0x01c5, 0x01c6 }, { 0x01c7, 0x01c9 }, { 0x01c8, 0x01c9 },
{ 0x01ca, 0x01cc }, { 0x01cb, 0x01cc }, { 0x01cd, 0x01ce }, { 0x01cf, 0x01d0 }, { 0x01d1, 0x01d2 }, { 0x01d3, 0x01d4 }, { 0x01d5, 0x01d6 }, { 0x01d7, 0x01d8 },
{ 0x01d9, 0x01da }, { 0x01db, 0x01dc }, { 0x01de, 0x01df }, { 0x01e0, 0x01e1 }, { 0x01e2, 0x01e3 }, { 0x01e4, 0x01e5 }, { 0x01e6, 0x01e7 }, { 0x01e8, 0x01e9 },
{ 0x01ea, 0x01eb }, { 0x01ec, 0x01ed }, { 0x01ee, 0x01ef }, { 0x01f1, 0x01f3 }, { 0x01f2, 0x01f3 }, { 0x01f4, 0x01f5 }, { 0x01f6, 0x0195 }, { 0x01f7, 0x01bf },
{ 0x01f8, 0x01f9 }, { 0x01fa, 0x01fb }, { 0x01fc, 0x01fd }, { 0x01fe, 0x01ff }, { 0x0200, 0x0201 }, { 0x0202, 0x0203 }, { 0x0204, 0x0205 }, { 0x0206, 0x0207 },
{ 0x0208, 0x0209 }, { 0x020a, 0x020b }, { 0x020c, 0x020d }, { 0x020e, 0x020f }, { 0x0210, 0x0211 }, { 0x0212, 0x0213 }, { 0x0214, 0x0215 }, { 0x0216, 0x0217 },
{ 0x0218, 0x0219 }, { 0x021a, 0x021b }, { 0x021c, 0x021d }, { 0x021e, 0x021f }, { 0x0220, 0x019e }, { 0x0222, 0x0223 }, { 0x0224, 0x0225 }, { 0x0226, 0x0227 },
{ 0x0228, 0x0229 }, { 0x022a, 0x022b }, { 0x022c, 0x022d }, { 0x022e, 0x022f }, { 0x0230, 0x0231 }, { 0x0232, 0x0233 }, { 0x0345, 0x03b9 }, { 0x0386, 0x03ac },
{ 0x038c, 0x03cc }, { 0x038e, 0x03cd }, { 0x038f, 0x03ce }, { 0x03c2, 0x03c3 }, { 0x03d0, 0x03b2 }, { 0x03d1, 0x03b8 }, { 0x03d5, 0x03c6 }, { 0x03d6, 0x03c0 },
{ 0x03d8, 0x03d9 }, { 0x03da, 0x03db }, { 0x03dc, 0x03dd }, { 0x03de, 0x03df }, { 0x03e0, 0x03e1 }, { 0x03e2, 0x03e3 }, { 0x03e4, 0x03e5 }, { 0x03e6, 0x03e7 },
{ 0x03e8, 0x03e9 }, { 0x03ea, 0x03eb }, { 0x03ec, 0x03ed }, { 0x03ee, 0x03ef }, { 0x03f0, 0x03ba }, { 0x03f1, 0x03c1 }, { 0x03f2, 0x03c3 }, { 0x03f4, 0x03b8 },
{ 0x03f5, 0x03b5 }, { 0x0460, 0x0461 }, { 0x0462, 0x0463 }, { 0x0464, 0x0465 }, { 0x0466, 0x0467 }, { 0x0468, 0x0469 }, { 0x046a, 0x046b }, { 0x046c, 0x046d },
{ 0x046e, 0x046f }, { 0x0470, 0x0471 }, { 0x0472, 0x0473 }, { 0x0474, 0x0475 }, { 0x0476, 0x0477 }, { 0x0478, 0x0479 }, { 0x047a, 0x047b }, { 0x047c, 0x047d },
{ 0x047e, 0x047f }, { 0x0480, 0x0481 }, { 0x048a, 0x048b }, { 0x048c, 0x048d }, { 0x048e, 0x048f }, { 0x0490, 0x0491 }, { 0x0492, 0x0493 }, { 0x0494, 0x0495 },
{ 0x0496, 0x0497 }, { 0x0498, 0x0499 }, { 0x049a, 0x049b }, { 0x049c, 0x049d }, { 0x049e, 0x049f }, { 0x04a0, 0x04a1 }, { 0x04a2, 0x04a3 }, { 0x04a4, 0x04a5 },
{ 0x04a6, 0x04a7 }, { 0x04a8, 0x04a9 }, { 0x04aa, 0x04ab }, { 0x04ac, 0x04ad }, { 0x04ae, 0x04af }, { 0x04b0, 0x04b1 }, { 0x04b2, 0x04b3 }, { 0x04b4, 0x04b5 },
{ 0x04b6, 0x04b7 }, { 0x04b8, 0x04b9 }, { 0x04ba, 0x04bb }, { 0x04bc, 0x04bd }, { 0x04be, 0x04bf }, { 0x04c1, 0x04c2 }, { 0x04c3, 0x04c4 }, { 0x04c5, 0x04c6 },
{ 0x04c7, 0x04c8 }, { 0x04c9, 0x04ca }, { 0x04cb, 0x04cc }, { 0x04cd, 0x04ce }, { 0x04d0, 0x04d1 }, { 0x04d2, 0x04d3 }, { 0x04d4, 0x04d5 }, { 0x04d6, 0x04d7 },
{ 0x04d8, 0x04d9 }, { 0x04da, 0x04db }, { 0x04dc, 0x04dd }, { 0x04de, 0x04df }, { 0x04e0, 0x04e1 }, { 0x04e2, 0x04e3 }, { 0x04e4, 0x04e5 }, { 0x04e6, 0x04e7 },
{ 0x04e8, 0x04e9 }, { 0x04ea, 0x04eb }, { 0x04ec, 0x04ed }, { 0x04ee, 0x04ef }, { 0x04f0, 0x04f1 }, { 0x04f2, 0x04f3 }, { 0x04f4, 0x04f5 }, { 0x04f8, 0x04f9 },
{ 0x0500, 0x0501 }, { 0x0502, 0x0503 }, { 0x0504, 0x0505 }, { 0x0506, 0x0507 }, { 0x0508, 0x0509 }, { 0x050a, 0x050b }, { 0x050c, 0x050d }, { 0x050e, 0x050f },
{ 0x1e00, 0x1e01 }, { 0x1e02, 0x1e03 }, { 0x1e04, 0x1e05 }, { 0x1e06, 0x1e07 }, { 0x1e08, 0x1e09 }, { 0x1e0a, 0x1e0b }, { 0x1e0c, 0x1e0d }, { 0x1e0e, 0x1e0f },
{ 0x1e10, 0x1e11 }, { 0x1e12, 0x1e13 }, { 0x1e14, 0x1e15 }, { 0x1e16, 0x1e17 }, { 0x1e18, 0x1e19 }, { 0x1e1a, 0x1e1b }, { 0x1e1c, 0x1e1d }, { 0x1e1e, 0x1e1f },
{ 0x1e20, 0x1e21 }, { 0x1e22, 0x1e23 }, { 0x1e24, 0x1e25 }, { 0x1e26, 0x1e27 }, { 0x1e28, 0x1e29 }, { 0x1e2a, 0x1e2b }, { 0x1e2c, 0x1e2d }, { 0x1e2e, 0x1e2f },
{ 0x1e30, 0x1e31 }, { 0x1e32, 0x1e33 }, { 0x1e34, 0x1e35 }, { 0x1e36, 0x1e37 }, { 0x1e38, 0x1e39 }, { 0x1e3a, 0x1e3b }, { 0x1e3c, 0x1e3d }, { 0x1e3e, 0x1e3f },
{ 0x1e40, 0x1e41 }, { 0x1e42, 0x1e43 }, { 0x1e44, 0x1e45 }, { 0x1e46, 0x1e47 }, { 0x1e48, 0x1e49 }, { 0x1e4a, 0x1e4b }, { 0x1e4c, 0x1e4d }, { 0x1e4e, 0x1e4f },
{ 0x1e50, 0x1e51 }, { 0x1e52, 0x1e53 }, { 0x1e54, 0x1e55 }, { 0x1e56, 0x1e57 }, { 0x1e58, 0x1e59 }, { 0x1e5a, 0x1e5b }, { 0x1e5c, 0x1e5d }, { 0x1e5e, 0x1e5f },
{ 0x1e60, 0x1e61 }, { 0x1e62, 0x1e63 }, { 0x1e64, 0x1e65 }, { 0x1e66, 0x1e67 }, { 0x1e68, 0x1e69 }, { 0x1e6a, 0x1e6b }, { 0x1e6c, 0x1e6d }, { 0x1e6e, 0x1e6f },
{ 0x1e70, 0x1e71 }, { 0x1e72, 0x1e73 }, { 0x1e74, 0x1e75 }, { 0x1e76, 0x1e77 }, { 0x1e78, 0x1e79 }, { 0x1e7a, 0x1e7b }, { 0x1e7c, 0x1e7d }, { 0x1e7e, 0x1e7f },
{ 0x1e80, 0x1e81 }, { 0x1e82, 0x1e83 }, { 0x1e84, 0x1e85 }, { 0x1e86, 0x1e87 }, { 0x1e88, 0x1e89 }, { 0x1e8a, 0x1e8b }, { 0x1e8c, 0x1e8d }, { 0x1e8e, 0x1e8f },
{ 0x1e90, 0x1e91 }, { 0x1e92, 0x1e93 }, { 0x1e94, 0x1e95 }, { 0x1e9b, 0x1e61 }, { 0x1ea0, 0x1ea1 }, { 0x1ea2, 0x1ea3 }, { 0x1ea4, 0x1ea5 }, { 0x1ea6, 0x1ea7 },
{ 0x1ea8, 0x1ea9 }, { 0x1eaa, 0x1eab }, { 0x1eac, 0x1ead }, { 0x1eae, 0x1eaf }, { 0x1eb0, 0x1eb1 }, { 0x1eb2, 0x1eb3 }, { 0x1eb4, 0x1eb5 }, { 0x1eb6, 0x1eb7 },
{ 0x1eb8, 0x1eb9 }, { 0x1eba, 0x1ebb }, { 0x1ebc, 0x1ebd }, { 0x1ebe, 0x1ebf }, { 0x1ec0, 0x1ec1 }, { 0x1ec2, 0x1ec3 }, { 0x1ec4, 0x1ec5 }, { 0x1ec6, 0x1ec7 },
{ 0x1ec8, 0x1ec9 }, { 0x1eca, 0x1ecb }, { 0x1ecc, 0x1ecd }, { 0x1ece, 0x1ecf }, { 0x1ed0, 0x1ed1 }, { 0x1ed2, 0x1ed3 }, { 0x1ed4, 0x1ed5 }, { 0x1ed6, 0x1ed7 },
{ 0x1ed8, 0x1ed9 }, { 0x1eda, 0x1edb }, { 0x1edc, 0x1edd }, { 0x1ede, 0x1edf }, { 0x1ee0, 0x1ee1 }, { 0x1ee2, 0x1ee3 }, { 0x1ee4, 0x1ee5 }, { 0x1ee6, 0x1ee7 },
{ 0x1ee8, 0x1ee9 }, { 0x1eea, 0x1eeb }, { 0x1eec, 0x1eed }, { 0x1eee, 0x1eef }, { 0x1ef0, 0x1ef1 }, { 0x1ef2, 0x1ef3 }, { 0x1ef4, 0x1ef5 }, { 0x1ef6, 0x1ef7 },
{ 0x1ef8, 0x1ef9 }, { 0x1f59, 0x1f51 }, { 0x1f5b, 0x1f53 }, { 0x1f5d, 0x1f55 }, { 0x1f5f, 0x1f57 }, { 0x1fb8, 0x1fb0 }, { 0x1fb9, 0x1fb1 }, { 0x1fba, 0x1f70 },
{ 0x1fbb, 0x1f71 }, { 0x1fbe, 0x03b9 }, { 0x1fd8, 0x1fd0 }, { 0x1fd9, 0x1fd1 }, { 0x1fda, 0x1f76 }, { 0x1fdb, 0x1f77 }, { 0x1fe8, 0x1fe0 }, { 0x1fe9, 0x1fe1 },
{ 0x1fea, 0x1f7a }, { 0x1feb, 0x1f7b }, { 0x1fec, 0x1fe5 }, { 0x1ff8, 0x1f78 }, { 0x1ff9, 0x1f79 }, { 0x1ffa, 0x1f7c }, { 0x1ffb, 0x1f7d }, { 0x2126, 0x03c9 },
{ 0x212a, 0x006b }, { 0x212b, 0x00e5 },
};
/* This maps single codepoint to two codepoints. */
static const struct {
int src_codepoint;
int dest_codepoint0;
int dest_codepoint1;
} double_map[] = {
{ 0x00df, 0x0073, 0x0073 }, { 0x0130, 0x0069, 0x0307 }, { 0x0149, 0x02bc, 0x006e }, { 0x01f0, 0x006a, 0x030c }, { 0x0587, 0x0565, 0x0582 }, { 0x1e96, 0x0068, 0x0331 },
{ 0x1e97, 0x0074, 0x0308 }, { 0x1e98, 0x0077, 0x030a }, { 0x1e99, 0x0079, 0x030a }, { 0x1e9a, 0x0061, 0x02be }, { 0x1f50, 0x03c5, 0x0313 }, { 0x1f80, 0x1f00, 0x03b9 },
{ 0x1f81, 0x1f01, 0x03b9 }, { 0x1f82, 0x1f02, 0x03b9 }, { 0x1f83, 0x1f03, 0x03b9 }, { 0x1f84, 0x1f04, 0x03b9 }, { 0x1f85, 0x1f05, 0x03b9 }, { 0x1f86, 0x1f06, 0x03b9 },
{ 0x1f87, 0x1f07, 0x03b9 }, { 0x1f88, 0x1f00, 0x03b9 }, { 0x1f89, 0x1f01, 0x03b9 }, { 0x1f8a, 0x1f02, 0x03b9 }, { 0x1f8b, 0x1f03, 0x03b9 }, { 0x1f8c, 0x1f04, 0x03b9 },
{ 0x1f8d, 0x1f05, 0x03b9 }, { 0x1f8e, 0x1f06, 0x03b9 }, { 0x1f8f, 0x1f07, 0x03b9 }, { 0x1f90, 0x1f20, 0x03b9 }, { 0x1f91, 0x1f21, 0x03b9 }, { 0x1f92, 0x1f22, 0x03b9 },
{ 0x1f93, 0x1f23, 0x03b9 }, { 0x1f94, 0x1f24, 0x03b9 }, { 0x1f95, 0x1f25, 0x03b9 }, { 0x1f96, 0x1f26, 0x03b9 }, { 0x1f97, 0x1f27, 0x03b9 }, { 0x1f98, 0x1f20, 0x03b9 },
{ 0x1f99, 0x1f21, 0x03b9 }, { 0x1f9a, 0x1f22, 0x03b9 }, { 0x1f9b, 0x1f23, 0x03b9 }, { 0x1f9c, 0x1f24, 0x03b9 }, { 0x1f9d, 0x1f25, 0x03b9 }, { 0x1f9e, 0x1f26, 0x03b9 },
{ 0x1f9f, 0x1f27, 0x03b9 }, { 0x1fa0, 0x1f60, 0x03b9 }, { 0x1fa1, 0x1f61, 0x03b9 }, { 0x1fa2, 0x1f62, 0x03b9 }, { 0x1fa3, 0x1f63, 0x03b9 }, { 0x1fa4, 0x1f64, 0x03b9 },
{ 0x1fa5, 0x1f65, 0x03b9 }, { 0x1fa6, 0x1f66, 0x03b9 }, { 0x1fa7, 0x1f67, 0x03b9 }, { 0x1fa8, 0x1f60, 0x03b9 }, { 0x1fa9, 0x1f61, 0x03b9 }, { 0x1faa, 0x1f62, 0x03b9 },
{ 0x1fab, 0x1f63, 0x03b9 }, { 0x1fac, 0x1f64, 0x03b9 }, { 0x1fad, 0x1f65, 0x03b9 }, { 0x1fae, 0x1f66, 0x03b9 }, { 0x1faf, 0x1f67, 0x03b9 }, { 0x1fb2, 0x1f70, 0x03b9 },
{ 0x1fb3, 0x03b1, 0x03b9 }, { 0x1fb4, 0x03ac, 0x03b9 }, { 0x1fb6, 0x03b1, 0x0342 }, { 0x1fbc, 0x03b1, 0x03b9 }, { 0x1fc2, 0x1f74, 0x03b9 }, { 0x1fc3, 0x03b7, 0x03b9 },
{ 0x1fc4, 0x03ae, 0x03b9 }, { 0x1fc6, 0x03b7, 0x0342 }, { 0x1fcc, 0x03b7, 0x03b9 }, { 0x1fd6, 0x03b9, 0x0342 }, { 0x1fe4, 0x03c1, 0x0313 }, { 0x1fe6, 0x03c5, 0x0342 },
{ 0x1ff2, 0x1f7c, 0x03b9 }, { 0x1ff3, 0x03c9, 0x03b9 }, { 0x1ff4, 0x03ce, 0x03b9 }, { 0x1ff6, 0x03c9, 0x0342 }, { 0x1ffc, 0x03c9, 0x03b9 }, { 0xfb00, 0x0066, 0x0066 },
{ 0xfb01, 0x0066, 0x0069 }, { 0xfb02, 0x0066, 0x006c }, { 0xfb05, 0x0073, 0x0074 }, { 0xfb06, 0x0073, 0x0074 }, { 0xfb13, 0x0574, 0x0576 }, { 0xfb14, 0x0574, 0x0565 },
{ 0xfb15, 0x0574, 0x056b }, { 0xfb16, 0x057e, 0x0576 }, { 0xfb17, 0x0574, 0x056d }
};
/* This maps single codepoint to three codepoints. */
static const struct {
int src_codepoint;
int dest_codepoint0;
int dest_codepoint1;
int dest_codepoint2;
} triple_map[] = {
{ 0x0390, 0x03b9, 0x0308, 0x0301 }, { 0x03b0, 0x03c5, 0x0308, 0x0301 }, { 0x1f52, 0x03c5, 0x0313, 0x0300 }, { 0x1f54, 0x03c5, 0x0313, 0x0301 },
{ 0x1f56, 0x03c5, 0x0313, 0x0342 }, { 0x1fb7, 0x03b1, 0x0342, 0x03b9 }, { 0x1fc7, 0x03b7, 0x0342, 0x03b9 }, { 0x1fd2, 0x03b9, 0x0308, 0x0300 },
{ 0x1fd3, 0x03b9, 0x0308, 0x0301 }, { 0x1fd7, 0x03b9, 0x0308, 0x0342 }, { 0x1fe2, 0x03c5, 0x0308, 0x0300 }, { 0x1fe3, 0x03c5, 0x0308, 0x0301 },
{ 0x1fe7, 0x03c5, 0x0308, 0x0342 }, { 0x1ff7, 0x03c9, 0x0342, 0x03b9 }, { 0xfb03, 0x0066, 0x0066, 0x0069 }, { 0xfb04, 0x0066, 0x0066, 0x006c }
};
int i;
/* Fast path for ASCII characters. */
if(codepoint <= 0x7f) {
info->codepoints[0] = codepoint;
if(ISUPPER_(codepoint))
info->codepoints[0] += 'a' - 'A';
info->n_codepoints = 1;
return;
}
for(i = 0; i < SIZEOF_ARRAY(range_map); i++) {
if(range_map[i].min_codepoint <= codepoint && codepoint <= range_map[i].max_codepoint) {
info->codepoints[0] = codepoint + range_map[i].offset;
info->n_codepoints = 1;
return;
}
}
for(i = 0; i < SIZEOF_ARRAY(single_map); i++) {
if(codepoint == single_map[i].src_codepoint) {
info->codepoints[0] = single_map[i].dest_codepoint;
info->n_codepoints = 1;
return;
}
}
for(i = 0; i < SIZEOF_ARRAY(double_map); i++) {
if(codepoint == double_map[i].src_codepoint) {
info->codepoints[0] = double_map[i].dest_codepoint0;
info->codepoints[1] = double_map[i].dest_codepoint1;
info->n_codepoints = 2;
return;
}
}
for(i = 0; i < SIZEOF_ARRAY(triple_map); i++) {
if(codepoint == triple_map[i].src_codepoint) {
info->codepoints[0] = triple_map[i].dest_codepoint0;
info->codepoints[1] = triple_map[i].dest_codepoint1;
info->codepoints[2] = triple_map[i].dest_codepoint2;
info->n_codepoints = 3;
return;
}
}
info->codepoints[0] = codepoint;
info->n_codepoints = 1;
}
#endif
#if defined MD4C_USE_UTF16
#define IS_UTF16_SURROGATE_HI(word) (((WORD)(word) & 0xfc00) == 0xd800)
#define IS_UTF16_SURROGATE_LO(word) (((WORD)(word) & 0xfc00) == 0xdc00)
#define UTF16_DECODE_SURROGATE(hi, lo) (0x10000 + ((((unsigned)(hi) & 0x3ff) << 10) | (((unsigned)(lo) & 0x3ff) << 0)))
static int
md_decode_utf16le__(const CHAR* str, SZ str_size, SZ* p_size)
{
if(IS_UTF16_SURROGATE_HI(str[0])) {
if(1 < str_size && IS_UTF16_SURROGATE_LO(str[1])) {
if(p_size != NULL)
*p_size = 2;
return UTF16_DECODE_SURROGATE(str[0], str[1]);
}
}
if(p_size != NULL)
*p_size = 1;
return str[0];
}
static int
md_decode_utf16le_before__(MD_CTX* ctx, OFF off)
{
if(off > 2 && IS_UTF16_SURROGATE_HI(CH(off-2)) && IS_UTF16_SURROGATE_LO(CH(off-1)))
return UTF16_DECODE_SURROGATE(CH(off-2), CH(off-1));
return CH(off);
}
/* No whitespace uses surrogates, so no decoding needed here. */
#define ISUNICODEWHITESPACE_(codepoint) md_is_unicode_whitespace__(codepoint)
#define ISUNICODEWHITESPACE(off) md_is_unicode_whitespace__(CH(off))
#define ISUNICODEWHITESPACEBEFORE(off) md_is_unicode_whitespace__(CH((off)-1))
#define ISUNICODEPUNCT(off) md_is_unicode_punct__(md_decode_utf16le__(STR(off), ctx->size - (off), NULL))
#define ISUNICODEPUNCTBEFORE(off) md_is_unicode_punct__(md_decode_utf16le_before__(ctx, off))
static inline int
md_decode_unicode(const CHAR* str, OFF off, SZ str_size, SZ* p_char_size)
{
return md_decode_utf16le__(str+off, str_size-off, p_char_size);
}
#elif defined MD4C_USE_UTF8
#define IS_UTF8_LEAD1(byte) ((unsigned char)(byte) <= 0x7f)
#define IS_UTF8_LEAD2(byte) (((unsigned char)(byte) & 0xe0) == 0xc0)
#define IS_UTF8_LEAD3(byte) (((unsigned char)(byte) & 0xf0) == 0xe0)
#define IS_UTF8_LEAD4(byte) (((unsigned char)(byte) & 0xf8) == 0xf0)
#define IS_UTF8_TAIL(byte) (((unsigned char)(byte) & 0xc0) == 0x80)
static int
md_decode_utf8__(const CHAR* str, SZ str_size, SZ* p_size)
{
if(!IS_UTF8_LEAD1(str[0])) {
if(IS_UTF8_LEAD2(str[0])) {
if(1 < str_size && IS_UTF8_TAIL(str[1])) {
if(p_size != NULL)
*p_size = 2;
return (((unsigned int)str[0] & 0x1f) << 6) |
(((unsigned int)str[1] & 0x3f) << 0);
}
} else if(IS_UTF8_LEAD3(str[0])) {
if(2 < str_size && IS_UTF8_TAIL(str[1]) && IS_UTF8_TAIL(str[2])) {
if(p_size != NULL)
*p_size = 3;
return (((unsigned int)str[0] & 0x0f) << 12) |
(((unsigned int)str[1] & 0x3f) << 6) |
(((unsigned int)str[2] & 0x3f) << 0);
}
} else if(IS_UTF8_LEAD4(str[0])) {
if(3 < str_size && IS_UTF8_TAIL(str[1]) && IS_UTF8_TAIL(str[2]) && IS_UTF8_TAIL(str[3])) {
if(p_size != NULL)
*p_size = 4;
return (((unsigned int)str[0] & 0x07) << 18) |
(((unsigned int)str[1] & 0x3f) << 12) |
(((unsigned int)str[2] & 0x3f) << 6) |
(((unsigned int)str[3] & 0x3f) << 0);
}
}
}
if(p_size != NULL)
*p_size = 1;
return str[0];
}
static int
md_decode_utf8_before__(MD_CTX* ctx, OFF off)
{
if(!IS_UTF8_LEAD1(CH(off-1))) {
if(off > 1 && IS_UTF8_LEAD2(CH(off-2)) && IS_UTF8_TAIL(CH(off-1)))
return (((unsigned int)CH(off-2) & 0x1f) << 6) |
(((unsigned int)CH(off-1) & 0x3f) << 0);
if(off > 2 && IS_UTF8_LEAD3(CH(off-3)) && IS_UTF8_TAIL(CH(off-2)) && IS_UTF8_TAIL(CH(off-1)))
return (((unsigned int)CH(off-3) & 0x0f) << 12) |
(((unsigned int)CH(off-2) & 0x3f) << 6) |
(((unsigned int)CH(off-1) & 0x3f) << 0);
if(off > 3 && IS_UTF8_LEAD4(CH(off-4)) && IS_UTF8_TAIL(CH(off-3)) && IS_UTF8_TAIL(CH(off-2)) && IS_UTF8_TAIL(CH(off-1)))
return (((unsigned int)CH(off-4) & 0x07) << 18) |
(((unsigned int)CH(off-3) & 0x3f) << 12) |
(((unsigned int)CH(off-2) & 0x3f) << 6) |
(((unsigned int)CH(off-1) & 0x3f) << 0);
}
return CH(off-1);
}
#define ISUNICODEWHITESPACE_(codepoint) md_is_unicode_whitespace__(codepoint)
#define ISUNICODEWHITESPACE(off) md_is_unicode_whitespace__(md_decode_utf8__(STR(off), ctx->size - (off), NULL))
#define ISUNICODEWHITESPACEBEFORE(off) md_is_unicode_whitespace__(md_decode_utf8_before__(ctx, off))
#define ISUNICODEPUNCT(off) md_is_unicode_punct__(md_decode_utf8__(STR(off), ctx->size - (off), NULL))
#define ISUNICODEPUNCTBEFORE(off) md_is_unicode_punct__(md_decode_utf8_before__(ctx, off))
static inline int
md_decode_unicode(const CHAR* str, OFF off, SZ str_size, SZ* p_char_size)
{
return md_decode_utf8__(str+off, str_size-off, p_char_size);
}
#else
#define ISUNICODEWHITESPACE_(codepoint) ISWHITESPACE_(codepoint)
#define ISUNICODEWHITESPACE(off) ISWHITESPACE(off)
#define ISUNICODEWHITESPACEBEFORE(off) ISWHITESPACE((off)-1)
#define ISUNICODEPUNCT(off) ISPUNCT(off)
#define ISUNICODEPUNCTBEFORE(off) ISPUNCT((off)-1)
static inline void
md_get_unicode_fold_info(int codepoint, MD_UNICODE_FOLD_INFO* info)
{
info->codepoints[0] = codepoint;
if(ISUPPER_(codepoint))
info->codepoints[0] += 'a' - 'A';
info->n_codepoints = 1;
}
static inline int
md_decode_unicode(const CHAR* str, OFF off, SZ str_size, SZ* p_size)
{
*p_size = 1;
return str[off];
}
#endif
/*************************************
*** Helper string manipulations ***
*************************************/
/* Fill buffer with copy of the string between 'beg' and 'end' but replace any
* line breaks with given replacement character.
*
* NOTE: Caller is responsible to make sure the buffer is large enough.
* (Given the output is always shorter then input, (end - beg) is good idea
* what the caller should allocate.)
*/
static void
md_merge_lines(MD_CTX* ctx, OFF beg, OFF end, const MD_LINE* lines, int n_lines,
CHAR line_break_replacement_char, CHAR* buffer, SZ* p_size)
{
CHAR* ptr = buffer;
int line_index = 0;
OFF off = beg;
while(1) {
const MD_LINE* line = &lines[line_index];
OFF line_end = line->end;
if(end < line_end)
line_end = end;
while(off < line_end) {
*ptr = CH(off);
ptr++;
off++;
}
if(off >= end) {
*p_size = ptr - buffer;
return;
}
*ptr = line_break_replacement_char;
ptr++;
line_index++;
off = lines[line_index].beg;
}
}
/* Wrapper of md_merge_lines() which allocates new buffer for the output string.
*/
static int
md_merge_lines_alloc(MD_CTX* ctx, OFF beg, OFF end, const MD_LINE* lines, int n_lines,
CHAR line_break_replacement_char, CHAR** p_str, SZ* p_size)
{
CHAR* buffer;
buffer = (CHAR*) malloc(sizeof(CHAR) * (end - beg));
if(buffer == NULL) {
MD_LOG("malloc() failed.");
return -1;
}
md_merge_lines(ctx, beg, end, lines, n_lines,
line_break_replacement_char, buffer, p_size);
*p_str = buffer;
return 0;
}
static OFF
md_skip_unicode_whitespace(const CHAR* label, OFF off, SZ size)
{
SZ char_size;
int codepoint;
while(off < size) {
codepoint = md_decode_unicode(label, off, size, &char_size);
if(!ISUNICODEWHITESPACE_(codepoint) && !ISNEWLINE_(label[off]))
break;
off += char_size;
}
return off;
}
/******************************
*** Recognizing raw HTML ***
******************************/
/* md_is_html_tag() may be called when processing inlines (inline raw HTML)
* or when breaking document to blocks (checking for start of HTML block type 7).
*
* When breaking document to blocks, we do not yet know line boundaries, but
* in that case the whole tag has to live on a single line. We distinguish this
* by n_lines == 0.
*/
static int
md_is_html_tag(MD_CTX* ctx, const MD_LINE* lines, int n_lines, OFF beg, OFF max_end, OFF* p_end)
{
int attr_state;
OFF off = beg;
OFF line_end = (n_lines > 0) ? lines[0].end : ctx->size;
int i = 0;
MD_ASSERT(CH(beg) == _T('<'));
if(off + 1 >= line_end)
return FALSE;
off++;
/* For parsing attributes, we need a little state automaton below.
* State -1: no attributes are allowed.
* State 0: attribute could follow after some whitespace.
* State 1: after a whitespace (attribute name may follow).
* State 2: after attribute name ('=' MAY follow).
* State 3: after '=' (value specification MUST follow).
* State 41: in middle of unquoted attribute value.
* State 42: in middle of single-quoted attribute value.
* State 43: in middle of double-quoted attribute value.
*/
attr_state = 0;
if(CH(off) == _T('/')) {
/* Closer tag "</ ... >". No attributes may be present. */
attr_state = -1;
off++;
}
/* Tag name */
if(off >= line_end || !ISALPHA(off))
return FALSE;
off++;
while(off < line_end && (ISALNUM(off) || CH(off) == _T('-')))
off++;
/* (Optional) attributes (if not closer), (optional) '/' (if not closer)
* and final '>'. */
while(1) {
while(off < line_end && !ISNEWLINE(off)) {
if(attr_state > 40) {
if(attr_state == 41 && (ISBLANK(off) || ISANYOF(off, _T("\"'=<>`")))) {
attr_state = 0;
off--; /* Put the char back for re-inspection in the new state. */
} else if(attr_state == 42 && CH(off) == _T('\'')) {
attr_state = 0;
} else if(attr_state == 43 && CH(off) == _T('"')) {
attr_state = 0;
}
off++;
} else if(ISWHITESPACE(off)) {
if(attr_state == 0)