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html.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2013 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Rasmus Lerdorf <rasmus@php.net> |
| Jaakko Hyvätti <jaakko.hyvatti@iki.fi> |
| Wez Furlong <wez@thebrainroom.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
/*
* HTML entity resources:
*
* http://msdn.microsoft.com/workshop/author/dhtml/reference/charsets/charset2.asp
* http://msdn.microsoft.com/workshop/author/dhtml/reference/charsets/charset3.asp
* http://www.unicode.org/Public/MAPPINGS/OBSOLETE/UNI2SGML.TXT
*
* http://www.w3.org/TR/2002/REC-xhtml1-20020801/dtds.html#h-A2
*
*/
#include "php.h"
#if PHP_WIN32
#include "config.w32.h"
#else
#include <php_config.h>
#endif
#include "html.h"
#include "php_string.h"
#include "SAPI.h"
#if HAVE_LOCALE_H
#include <locale.h>
#endif
#if HAVE_LANGINFO_H
#include <langinfo.h>
#endif
#if HAVE_MBSTRING
# include "ext/mbstring/mbstring.h"
ZEND_EXTERN_MODULE_GLOBALS(mbstring)
#endif
enum entity_charset { cs_terminator, cs_8859_1, cs_cp1252,
cs_8859_15, cs_utf_8, cs_big5, cs_gb2312,
cs_big5hkscs, cs_sjis, cs_eucjp, cs_koi8r,
cs_cp1251, cs_8859_5, cs_cp866, cs_macroman
};
typedef const char *const entity_table_t;
/* codepage 1252 is a Windows extension to iso-8859-1. */
static entity_table_t ent_cp_1252[] = {
"euro", NULL, "sbquo", "fnof", "bdquo", "hellip", "dagger",
"Dagger", "circ", "permil", "Scaron", "lsaquo", "OElig",
NULL, NULL, NULL, NULL, "lsquo", "rsquo", "ldquo", "rdquo",
"bull", "ndash", "mdash", "tilde", "trade", "scaron", "rsaquo",
"oelig", NULL, NULL, "Yuml"
};
static entity_table_t ent_iso_8859_1[] = {
"nbsp", "iexcl", "cent", "pound", "curren", "yen", "brvbar",
"sect", "uml", "copy", "ordf", "laquo", "not", "shy", "reg",
"macr", "deg", "plusmn", "sup2", "sup3", "acute", "micro",
"para", "middot", "cedil", "sup1", "ordm", "raquo", "frac14",
"frac12", "frac34", "iquest", "Agrave", "Aacute", "Acirc",
"Atilde", "Auml", "Aring", "AElig", "Ccedil", "Egrave",
"Eacute", "Ecirc", "Euml", "Igrave", "Iacute", "Icirc",
"Iuml", "ETH", "Ntilde", "Ograve", "Oacute", "Ocirc", "Otilde",
"Ouml", "times", "Oslash", "Ugrave", "Uacute", "Ucirc", "Uuml",
"Yacute", "THORN", "szlig", "agrave", "aacute", "acirc",
"atilde", "auml", "aring", "aelig", "ccedil", "egrave",
"eacute", "ecirc", "euml", "igrave", "iacute", "icirc",
"iuml", "eth", "ntilde", "ograve", "oacute", "ocirc", "otilde",
"ouml", "divide", "oslash", "ugrave", "uacute", "ucirc",
"uuml", "yacute", "thorn", "yuml"
};
static entity_table_t ent_iso_8859_15[] = {
"nbsp", "iexcl", "cent", "pound", "euro", "yen", "Scaron",
"sect", "scaron", "copy", "ordf", "laquo", "not", "shy", "reg",
"macr", "deg", "plusmn", "sup2", "sup3", NULL, /* Zcaron */
"micro", "para", "middot", NULL, /* zcaron */ "sup1", "ordm",
"raquo", "OElig", "oelig", "Yuml", "iquest", "Agrave", "Aacute",
"Acirc", "Atilde", "Auml", "Aring", "AElig", "Ccedil", "Egrave",
"Eacute", "Ecirc", "Euml", "Igrave", "Iacute", "Icirc",
"Iuml", "ETH", "Ntilde", "Ograve", "Oacute", "Ocirc", "Otilde",
"Ouml", "times", "Oslash", "Ugrave", "Uacute", "Ucirc", "Uuml",
"Yacute", "THORN", "szlig", "agrave", "aacute", "acirc",
"atilde", "auml", "aring", "aelig", "ccedil", "egrave",
"eacute", "ecirc", "euml", "igrave", "iacute", "icirc",
"iuml", "eth", "ntilde", "ograve", "oacute", "ocirc", "otilde",
"ouml", "divide", "oslash", "ugrave", "uacute", "ucirc",
"uuml", "yacute", "thorn", "yuml"
};
static entity_table_t ent_uni_338_402[] = {
/* 338 (0x0152) */
"OElig", "oelig", NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 352 (0x0160) */
"Scaron", "scaron", NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 376 (0x0178) */
"Yuml", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 400 (0x0190) */
NULL, NULL, "fnof"
};
static entity_table_t ent_uni_spacing[] = {
/* 710 */
"circ",
/* 711 - 730 */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 731 - 732 */
NULL, "tilde"
};
static entity_table_t ent_uni_greek[] = {
/* 913 */
"Alpha", "Beta", "Gamma", "Delta", "Epsilon", "Zeta", "Eta", "Theta",
"Iota", "Kappa", "Lambda", "Mu", "Nu", "Xi", "Omicron", "Pi", "Rho",
NULL, "Sigma", "Tau", "Upsilon", "Phi", "Chi", "Psi", "Omega",
/* 938 - 944 are not mapped */
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
"alpha", "beta", "gamma", "delta", "epsilon", "zeta", "eta", "theta",
"iota", "kappa", "lambda", "mu", "nu", "xi", "omicron", "pi", "rho",
"sigmaf", "sigma", "tau", "upsilon", "phi", "chi", "psi", "omega",
/* 970 - 976 are not mapped */
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
"thetasym", "upsih",
NULL, NULL, NULL,
"piv"
};
static entity_table_t ent_uni_punct[] = {
/* 8194 */
"ensp", "emsp", NULL, NULL, NULL, NULL, NULL,
"thinsp", NULL, NULL, "zwnj", "zwj", "lrm", "rlm",
NULL, NULL, NULL, "ndash", "mdash", NULL, NULL, NULL,
/* 8216 */
"lsquo", "rsquo", "sbquo", NULL, "ldquo", "rdquo", "bdquo", NULL,
"dagger", "Dagger", "bull", NULL, NULL, NULL, "hellip",
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "permil", NULL,
/* 8242 */
"prime", "Prime", NULL, NULL, NULL, NULL, NULL, "lsaquo", "rsaquo", NULL,
NULL, NULL, "oline", NULL, NULL, NULL, NULL, NULL,
"frasl"
};
static entity_table_t ent_uni_euro[] = {
"euro"
};
static entity_table_t ent_uni_8465_8501[] = {
/* 8465 */
"image", NULL, NULL, NULL, NULL, NULL, NULL,
/* 8472 */
"weierp", NULL, NULL, NULL,
/* 8476 */
"real", NULL, NULL, NULL, NULL, NULL,
/* 8482 */
"trade", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8501 */
"alefsym",
};
static entity_table_t ent_uni_8592_9002[] = {
/* 8592 (0x2190) */
"larr", "uarr", "rarr", "darr", "harr", NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8608 (0x21a0) */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8624 (0x21b0) */
NULL, NULL, NULL, NULL, NULL, "crarr", NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8640 (0x21c0) */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8656 (0x21d0) */
"lArr", "uArr", "rArr", "dArr", "hArr", NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8672 (0x21e0) */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8704 (0x2200) */
"forall", NULL, "part", "exist", NULL, "empty", NULL, "nabla",
"isin", "notin", NULL, "ni", NULL, NULL, NULL, "prod",
/* 8720 (0x2210) */
NULL, "sum", "minus", NULL, NULL, NULL, NULL, "lowast",
NULL, NULL, "radic", NULL, NULL, "prop", "infin", NULL,
/* 8736 (0x2220) */
"ang", NULL, NULL, NULL, NULL, NULL, NULL, "and",
"or", "cap", "cup", "int", NULL, NULL, NULL, NULL,
/* 8752 (0x2230) */
NULL, NULL, NULL, NULL, "there4", NULL, NULL, NULL,
NULL, NULL, NULL, NULL, "sim", NULL, NULL, NULL,
/* 8768 (0x2240) */
NULL, NULL, NULL, NULL, NULL, "cong", NULL, NULL,
"asymp", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8784 (0x2250) */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8800 (0x2260) */
"ne", "equiv", NULL, NULL, "le", "ge", NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8816 (0x2270) */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8832 (0x2280) */
NULL, NULL, "sub", "sup", "nsub", NULL, "sube", "supe",
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8848 (0x2290) */
NULL, NULL, NULL, NULL, NULL, "oplus", NULL, "otimes",
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8864 (0x22a0) */
NULL, NULL, NULL, NULL, NULL, "perp", NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8880 (0x22b0) */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8896 (0x22c0) */
NULL, NULL, NULL, NULL, NULL, "sdot", NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8912 (0x22d0) */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8928 (0x22e0) */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8944 (0x22f0) */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8960 (0x2300) */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
"lceil", "rceil", "lfloor", "rfloor", NULL, NULL, NULL, NULL,
/* 8976 (0x2310) */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* 8992 (0x2320) */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, "lang", "rang"
};
static entity_table_t ent_uni_9674[] = {
/* 9674 */
"loz"
};
static entity_table_t ent_uni_9824_9830[] = {
/* 9824 */
"spades", NULL, NULL, "clubs", NULL, "hearts", "diams"
};
static entity_table_t ent_koi8r[] = {
"#1105", /* "jo "*/
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, "#1025", /* "JO" */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
"#1102", "#1072", "#1073", "#1094", "#1076", "#1077", "#1092",
"#1075", "#1093", "#1080", "#1081", "#1082", "#1083", "#1084",
"#1085", "#1086", "#1087", "#1103", "#1088", "#1089", "#1090",
"#1091", "#1078", "#1074", "#1100", "#1099", "#1079", "#1096",
"#1101", "#1097", "#1095", "#1098", "#1070", "#1040", "#1041",
"#1062", "#1044", "#1045", "#1060", "#1043", "#1061", "#1048",
"#1049", "#1050", "#1051", "#1052", "#1053", "#1054", "#1055",
"#1071", "#1056", "#1057", "#1058", "#1059", "#1046", "#1042",
"#1068", "#1067", "#1047", "#1064", "#1069", "#1065", "#1063",
"#1066"
};
static entity_table_t ent_cp_1251[] = {
"#1026", "#1027", "#8218", "#1107", "#8222", "hellip", "dagger",
"Dagger", "euro", "permil", "#1033", "#8249", "#1034", "#1036",
"#1035", "#1039", "#1106", "#8216", "#8217", "#8219", "#8220",
"bull", "ndash", "mdash", NULL, "trade", "#1113", "#8250",
"#1114", "#1116", "#1115", "#1119", "nbsp", "#1038", "#1118",
"#1032", "curren", "#1168", "brvbar", "sect", "#1025", "copy",
"#1028", "laquo", "not", "shy", "reg", "#1031", "deg", "plusmn",
"#1030", "#1110", "#1169", "micro", "para", "middot", "#1105",
"#8470", "#1108", "raquo", "#1112", "#1029", "#1109", "#1111",
"#1040", "#1041", "#1042", "#1043", "#1044", "#1045", "#1046",
"#1047", "#1048", "#1049", "#1050", "#1051", "#1052", "#1053",
"#1054", "#1055", "#1056", "#1057", "#1058", "#1059", "#1060",
"#1061", "#1062", "#1063", "#1064", "#1065", "#1066", "#1067",
"#1068", "#1069", "#1070", "#1071", "#1072", "#1073", "#1074",
"#1075", "#1076", "#1077", "#1078", "#1079", "#1080", "#1081",
"#1082", "#1083", "#1084", "#1085", "#1086", "#1087", "#1088",
"#1089", "#1090", "#1091", "#1092", "#1093", "#1094", "#1095",
"#1096", "#1097", "#1098", "#1099", "#1100", "#1101", "#1102",
"#1103"
};
static entity_table_t ent_iso_8859_5[] = {
"#1056", "#1057", "#1058", "#1059", "#1060", "#1061", "#1062",
"#1063", "#1064", "#1065", "#1066", "#1067", "#1068", "#1069",
"#1070", "#1071", "#1072", "#1073", "#1074", "#1075", "#1076",
"#1077", "#1078", "#1079", "#1080", "#1081", "#1082", "#1083",
"#1084", "#1085", "#1086", "#1087", "#1088", "#1089", "#1090",
"#1091", "#1092", "#1093", "#1094", "#1095", "#1096", "#1097",
"#1098", "#1099", "#1100", "#1101", "#1102", "#1103", "#1104",
"#1105", "#1106", "#1107", "#1108", "#1109", "#1110", "#1111",
"#1112", "#1113", "#1114", "#1115", "#1116", "#1117", "#1118",
"#1119"
};
static entity_table_t ent_cp_866[] = {
"#9492", "#9524", "#9516", "#9500", "#9472", "#9532", "#9566",
"#9567", "#9562", "#9556", "#9577", "#9574", "#9568", "#9552",
"#9580", "#9575", "#9576", "#9572", "#9573", "#9561", "#9560",
"#9554", "#9555", "#9579", "#9578", "#9496", "#9484", "#9608",
"#9604", "#9612", "#9616", "#9600", "#1088", "#1089", "#1090",
"#1091", "#1092", "#1093", "#1094", "#1095", "#1096", "#1097",
"#1098", "#1099", "#1100", "#1101", "#1102", "#1103", "#1025",
"#1105", "#1028", "#1108", "#1031", "#1111", "#1038", "#1118",
"#176", "#8729", "#183", "#8730", "#8470", "#164", "#9632",
"#160"
};
/* MacRoman has a couple of low-ascii chars that need mapping too */
/* Vertical tab (ASCII 11) is often used to store line breaks inside */
/* DB exports, this mapping changes it to a space */
static entity_table_t ent_macroman[] = {
"sp", NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, "quot", NULL,
NULL, NULL, "amp", NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, "lt", NULL, "gt", NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, "Auml", "Aring", "Ccedil", "Eacute", "Ntilde", "Ouml",
"Uuml", "aacute", "agrave", "acirc", "auml", "atilde", "aring",
"ccedil", "eacute", "egrave", "ecirc", "euml", "iacute", "igrave",
"icirc", "iuml", "ntilde", "oacute", "ograve", "ocirc", "ouml",
"otilde", "uacute", "ugrave", "ucirc", "uuml", "dagger", "deg",
"cent", "pound", "sect", "bull", "para", "szlig", "reg",
"copy", "trade", "acute", "uml", "ne", "AElig", "Oslash",
"infin", "plusmn", "le", "ge", "yen", "micro", "part",
"sum", "prod", "pi", "int", "ordf", "ordm", "Omega",
"aelig", "oslash", "iquest", "iexcl", "not", "radic", "fnof",
"asymp", "#8710", "laquo", "raquo", "hellip", "nbsp", "Agrave",
"Atilde", "Otilde", "OElig", "oelig", "ndash", "mdash", "ldquo",
"rdquo", "lsquo", "rsquo", "divide", "loz", "yuml", "Yuml",
"frasl", "euro", "lsaquo", "rsaquo", "#xFB01", "#xFB02", "Dagger",
"middot", "sbquo", "bdquo", "permil", "Acirc", "Ecirc", "Aacute",
"Euml", "Egrave", "Iacute", "Icirc", "Iuml", "Igrave", "Oacute",
"Ocirc", "#xF8FF", "Ograve", "Uacute", "Ucirc", "Ugrave", "#305",
"circ", "tilde", "macr", "#728", "#729", "#730", "cedil",
"#733", "#731", "#711"
};
struct html_entity_map {
enum entity_charset charset; /* charset identifier */
unsigned int basechar; /* char code at start of table */
unsigned int endchar; /* last char code in the table */
entity_table_t *table; /* the table of mappings */
};
static const struct html_entity_map entity_map[] = {
{ cs_cp1252, 0x80, 0x9f, ent_cp_1252 },
{ cs_cp1252, 0xa0, 0xff, ent_iso_8859_1 },
{ cs_8859_1, 0xa0, 0xff, ent_iso_8859_1 },
{ cs_8859_15, 0xa0, 0xff, ent_iso_8859_15 },
{ cs_utf_8, 0xa0, 0xff, ent_iso_8859_1 },
{ cs_utf_8, 338, 402, ent_uni_338_402 },
{ cs_utf_8, 710, 732, ent_uni_spacing },
{ cs_utf_8, 913, 982, ent_uni_greek },
{ cs_utf_8, 8194, 8260, ent_uni_punct },
{ cs_utf_8, 8364, 8364, ent_uni_euro },
{ cs_utf_8, 8465, 8501, ent_uni_8465_8501 },
{ cs_utf_8, 8592, 9002, ent_uni_8592_9002 },
{ cs_utf_8, 9674, 9674, ent_uni_9674 },
{ cs_utf_8, 9824, 9830, ent_uni_9824_9830 },
{ cs_big5, 0xa0, 0xff, ent_iso_8859_1 },
{ cs_gb2312, 0xa0, 0xff, ent_iso_8859_1 },
{ cs_big5hkscs, 0xa0, 0xff, ent_iso_8859_1 },
{ cs_sjis, 0xa0, 0xff, ent_iso_8859_1 },
{ cs_eucjp, 0xa0, 0xff, ent_iso_8859_1 },
{ cs_koi8r, 0xa3, 0xff, ent_koi8r },
{ cs_cp1251, 0x80, 0xff, ent_cp_1251 },
{ cs_8859_5, 0xc0, 0xff, ent_iso_8859_5 },
{ cs_cp866, 0xc0, 0xff, ent_cp_866 },
{ cs_macroman, 0x0b, 0xff, ent_macroman },
{ cs_terminator }
};
static const struct {
const char *codeset;
enum entity_charset charset;
} charset_map[] = {
{ "ISO-8859-1", cs_8859_1 },
{ "ISO8859-1", cs_8859_1 },
{ "ISO-8859-15", cs_8859_15 },
{ "ISO8859-15", cs_8859_15 },
{ "utf-8", cs_utf_8 },
{ "cp1252", cs_cp1252 },
{ "Windows-1252", cs_cp1252 },
{ "1252", cs_cp1252 },
{ "BIG5", cs_big5 },
{ "950", cs_big5 },
{ "GB2312", cs_gb2312 },
{ "936", cs_gb2312 },
{ "BIG5-HKSCS", cs_big5hkscs },
{ "Shift_JIS", cs_sjis },
{ "SJIS", cs_sjis },
{ "932", cs_sjis },
{ "EUCJP", cs_eucjp },
{ "EUC-JP", cs_eucjp },
{ "KOI8-R", cs_koi8r },
{ "koi8-ru", cs_koi8r },
{ "koi8r", cs_koi8r },
{ "cp1251", cs_cp1251 },
{ "Windows-1251", cs_cp1251 },
{ "win-1251", cs_cp1251 },
{ "iso8859-5", cs_8859_5 },
{ "iso-8859-5", cs_8859_5 },
{ "cp866", cs_cp866 },
{ "866", cs_cp866 },
{ "ibm866", cs_cp866 },
{ "MacRoman", cs_macroman },
{ NULL }
};
static const struct {
unsigned short charcode;
char *entity;
int entitylen;
int flags;
} basic_entities[] = {
{ '"', """, 6, ENT_HTML_QUOTE_DOUBLE },
{ '\'', "'", 6, ENT_HTML_QUOTE_SINGLE },
{ '\'', "'", 5, ENT_HTML_QUOTE_SINGLE },
{ '<', "<", 4, 0 },
{ '>', ">", 4, 0 },
{ 0, NULL, 0, 0 }
};
struct basic_entities_dec {
unsigned short charcode;
char entity[8];
int entitylen;
};
#define MB_RETURN { \
*newpos = pos; \
mbseq[mbpos] = '\0'; \
*mbseqlen = mbpos; \
return this_char; }
#define MB_WRITE(mbchar) { \
mbspace--; \
if (mbspace == 0) { \
MB_RETURN; \
} \
mbseq[mbpos++] = (mbchar); }
/* skip one byte and return */
#define MB_FAILURE(pos) do { \
*newpos = pos + 1; \
*status = FAILURE; \
return 0; \
} while (0)
#define CHECK_LEN(pos, chars_need) \
if (chars_need < 1) { \
if((str_len - (pos)) < chars_need) { \
*newpos = pos; \
*status = FAILURE; \
return 0; \
} \
} else { \
if((str_len - (pos)) < chars_need) { \
*newpos = pos + 1; \
*status = FAILURE; \
return 0; \
} \
}
/* {{{ get_next_char
*/
inline static unsigned int get_next_char(enum entity_charset charset,
unsigned char * str,
int str_len,
int * newpos,
unsigned char * mbseq,
int * mbseqlen,
int *status)
{
int pos = *newpos;
int mbpos = 0;
int mbspace = *mbseqlen;
unsigned int this_char = 0;
unsigned char next_char;
*status = SUCCESS;
if (mbspace <= 0) {
*mbseqlen = 0;
CHECK_LEN(pos, 1);
*newpos = pos + 1;
return str[pos];
}
switch (charset) {
case cs_utf_8:
{
unsigned char c;
CHECK_LEN(pos, 1);
c = str[pos];
if (c < 0x80) {
MB_WRITE(c);
this_char = c;
pos++;
} else if (c < 0xc2) {
MB_FAILURE(pos);
} else if (c < 0xe0) {
CHECK_LEN(pos, 2);
if (str[pos + 1] < 0x80 || str[pos + 1] > 0xbf) {
MB_FAILURE(pos);
}
this_char = ((c & 0x1f) << 6) | (str[pos + 1] & 0x3f);
if (this_char < 0x80) {
MB_FAILURE(pos);
}
MB_WRITE((unsigned char)c);
MB_WRITE((unsigned char)str[pos + 1]);
pos += 2;
} else if (c < 0xf0) {
CHECK_LEN(pos, 3);
if (str[pos + 1] < 0x80 || str[pos + 1] > 0xbf) {
MB_FAILURE(pos);
}
if (str[pos + 2] < 0x80 || str[pos + 2] > 0xbf) {
MB_FAILURE(pos);
}
this_char = ((c & 0x0f) << 12) | ((str[pos + 1] & 0x3f) << 6) | (str[pos + 2] & 0x3f);
if (this_char < 0x800) {
MB_FAILURE(pos);
} else if (this_char >= 0xd800 && this_char <= 0xdfff) {
MB_FAILURE(pos);
}
MB_WRITE((unsigned char)c);
MB_WRITE((unsigned char)str[pos + 1]);
MB_WRITE((unsigned char)str[pos + 2]);
pos += 3;
} else if (c < 0xf5) {
CHECK_LEN(pos, 4);
if (str[pos + 1] < 0x80 || str[pos + 1] > 0xbf) {
MB_FAILURE(pos);
}
if (str[pos + 2] < 0x80 || str[pos + 2] > 0xbf) {
MB_FAILURE(pos);
}
if (str[pos + 3] < 0x80 || str[pos + 3] > 0xbf) {
MB_FAILURE(pos);
}
this_char = ((c & 0x07) << 18) | ((str[pos + 1] & 0x3f) << 12) | ((str[pos + 2] & 0x3f) << 6) | (str[pos + 3] & 0x3f);
if (this_char < 0x10000 || this_char > 0x10FFFF) {
MB_FAILURE(pos);
}
MB_WRITE((unsigned char)c);
MB_WRITE((unsigned char)str[pos + 1]);
MB_WRITE((unsigned char)str[pos + 2]);
MB_WRITE((unsigned char)str[pos + 3]);
pos += 4;
} else {
MB_FAILURE(pos);
}
}
break;
case cs_big5:
case cs_gb2312:
case cs_big5hkscs:
{
CHECK_LEN(pos, 1);
this_char = str[pos++];
/* check if this is the first of a 2-byte sequence */
if (this_char >= 0x81 && this_char <= 0xfe) {
/* peek at the next char */
CHECK_LEN(pos, 1);
next_char = str[pos++];
if ((next_char >= 0x40 && next_char <= 0x7e) ||
(next_char >= 0xa1 && next_char <= 0xfe)) {
/* yes, this a wide char */
MB_WRITE(this_char);
MB_WRITE(next_char);
this_char = (this_char << 8) | next_char;
} else {
MB_FAILURE(pos);
}
} else {
MB_WRITE(this_char);
}
}
break;
case cs_sjis:
{
CHECK_LEN(pos, 1);
this_char = str[pos++];
/* check if this is the first of a 2-byte sequence */
if ((this_char >= 0x81 && this_char <= 0x9f) ||
(this_char >= 0xe0 && this_char <= 0xfc)) {
/* peek at the next char */
CHECK_LEN(pos, 1);
next_char = str[pos++];
if ((next_char >= 0x40 && next_char <= 0x7e) ||
(next_char >= 0x80 && next_char <= 0xfc))
{
/* yes, this a wide char */
MB_WRITE(this_char);
MB_WRITE(next_char);
this_char = (this_char << 8) | next_char;
} else {
MB_FAILURE(pos);
}
} else {
MB_WRITE(this_char);
}
break;
}
case cs_eucjp:
{
CHECK_LEN(pos, 1);
this_char = str[pos++];
/* check if this is the first of a multi-byte sequence */
if (this_char >= 0xa1 && this_char <= 0xfe) {
/* peek at the next char */
CHECK_LEN(pos, 1);
next_char = str[pos++];
if (next_char >= 0xa1 && next_char <= 0xfe) {
/* yes, this a jis kanji char */
MB_WRITE(this_char);
MB_WRITE(next_char);
this_char = (this_char << 8) | next_char;
} else {
MB_FAILURE(pos);
}
} else if (this_char == 0x8e) {
/* peek at the next char */
CHECK_LEN(pos, 1);
next_char = str[pos++];
if (next_char >= 0xa1 && next_char <= 0xdf) {
/* JIS X 0201 kana */
MB_WRITE(this_char);
MB_WRITE(next_char);
this_char = (this_char << 8) | next_char;
} else {
MB_FAILURE(pos);
}
} else if (this_char == 0x8f) {
/* peek at the next two char */
unsigned char next2_char;
CHECK_LEN(pos, 2);
next_char = str[pos];
next2_char = str[pos + 1];
pos += 2;
if ((next_char >= 0xa1 && next_char <= 0xfe) &&
(next2_char >= 0xa1 && next2_char <= 0xfe)) {
/* JIS X 0212 hojo-kanji */
MB_WRITE(this_char);
MB_WRITE(next_char);
MB_WRITE(next2_char);
this_char = (this_char << 16) | (next_char << 8) | next2_char;
} else {
MB_FAILURE(pos);
}
} else {
MB_WRITE(this_char);
}
break;
}
default:
/* single-byte charsets */
CHECK_LEN(pos, 1);
this_char = str[pos++];
MB_WRITE(this_char);
break;
}
MB_RETURN;
}
/* }}} */
/* {{{ entity_charset determine_charset
* returns the charset identifier based on current locale or a hint.
* defaults to iso-8859-1 */
static enum entity_charset determine_charset(char *charset_hint TSRMLS_DC)
{
int i;
enum entity_charset charset = cs_8859_1;
int len = 0;
zval *uf_result = NULL;
/* Guarantee default behaviour for backwards compatibility */
if (charset_hint == NULL)
return cs_8859_1;
if ((len = strlen(charset_hint)) != 0) {
goto det_charset;
}
#if HAVE_MBSTRING
#if !defined(COMPILE_DL_MBSTRING)
/* XXX: Ugly things. Why don't we look for a more sophisticated way? */
switch (MBSTRG(current_internal_encoding)) {
case mbfl_no_encoding_8859_1:
return cs_8859_1;
case mbfl_no_encoding_utf8:
return cs_utf_8;
case mbfl_no_encoding_euc_jp:
case mbfl_no_encoding_eucjp_win:
return cs_eucjp;
case mbfl_no_encoding_sjis:
case mbfl_no_encoding_sjis_open:
case mbfl_no_encoding_cp932:
return cs_sjis;
case mbfl_no_encoding_cp1252:
return cs_cp1252;
case mbfl_no_encoding_8859_15:
return cs_8859_15;
case mbfl_no_encoding_big5:
return cs_big5;
case mbfl_no_encoding_euc_cn:
case mbfl_no_encoding_hz:
case mbfl_no_encoding_cp936:
return cs_gb2312;
case mbfl_no_encoding_koi8r:
return cs_koi8r;
case mbfl_no_encoding_cp866:
return cs_cp866;
case mbfl_no_encoding_cp1251:
return cs_cp1251;
case mbfl_no_encoding_8859_5:
return cs_8859_5;
default:
;
}
#else
{
zval nm_mb_internal_encoding;
ZVAL_STRING(&nm_mb_internal_encoding, "mb_internal_encoding", 0);
if (call_user_function_ex(CG(function_table), NULL, &nm_mb_internal_encoding, &uf_result, 0, NULL, 1, NULL TSRMLS_CC) != FAILURE) {
charset_hint = Z_STRVAL_P(uf_result);
len = Z_STRLEN_P(uf_result);
if (charset_hint != NULL && len != 0) {
if (len == 4) { /* sizeof(none|auto|pass)-1 */
if (!memcmp("pass", charset_hint, sizeof("pass") - 1) ||
!memcmp("auto", charset_hint, sizeof("auto") - 1) ||
!memcmp("none", charset_hint, sizeof("none") - 1)) {
charset_hint = NULL;
len = 0;
}
} else {
/* Jump to det_charset only if mbstring isn't one of above eq pass, auto, none.
Otherwise try default_charset next */
goto det_charset;
}
}
}
}
#endif
#endif
charset_hint = SG(default_charset);
if (charset_hint != NULL && (len=strlen(charset_hint)) != 0) {
goto det_charset;
}
/* try to detect the charset for the locale */
#if HAVE_NL_LANGINFO && HAVE_LOCALE_H && defined(CODESET)
charset_hint = nl_langinfo(CODESET);
if (charset_hint != NULL && (len=strlen(charset_hint)) != 0) {
goto det_charset;
}
#endif
#if HAVE_LOCALE_H
/* try to figure out the charset from the locale */
{
char *localename;
char *dot, *at;
/* lang[_territory][.codeset][@modifier] */
localename = setlocale(LC_CTYPE, NULL);
dot = strchr(localename, '.');
if (dot) {
dot++;
/* locale specifies a codeset */
at = strchr(dot, '@');
if (at)
len = at - dot;
else
len = strlen(dot);
charset_hint = dot;
} else {
/* no explicit name; see if the name itself
* is the charset */
charset_hint = localename;
len = strlen(charset_hint);
}
}
#endif
det_charset:
if (charset_hint) {
int found = 0;
/* now walk the charset map and look for the codeset */
for (i = 0; charset_map[i].codeset; i++) {
if (len == strlen(charset_map[i].codeset) && strncasecmp(charset_hint, charset_map[i].codeset, len) == 0) {
charset = charset_map[i].charset;
found = 1;
break;
}
}
if (!found) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "charset `%s' not supported, assuming iso-8859-1",
charset_hint);
}
}
if (uf_result != NULL) {
zval_ptr_dtor(&uf_result);
}
return charset;
}
/* }}} */
/* {{{ php_utf32_utf8 */
size_t php_utf32_utf8(unsigned char *buf, unsigned k)
{
size_t retval = 0;
if (k < 0x80) {
buf[0] = k;
retval = 1;
} else if (k < 0x800) {
buf[0] = 0xc0 | (k >> 6);
buf[1] = 0x80 | (k & 0x3f);
retval = 2;
} else if (k < 0x10000) {
buf[0] = 0xe0 | (k >> 12);
buf[1] = 0x80 | ((k >> 6) & 0x3f);
buf[2] = 0x80 | (k & 0x3f);
retval = 3;
} else if (k < 0x200000) {
buf[0] = 0xf0 | (k >> 18);
buf[1] = 0x80 | ((k >> 12) & 0x3f);
buf[2] = 0x80 | ((k >> 6) & 0x3f);
buf[3] = 0x80 | (k & 0x3f);
retval = 4;
} else if (k < 0x4000000) {
buf[0] = 0xf8 | (k >> 24);
buf[1] = 0x80 | ((k >> 18) & 0x3f);
buf[2] = 0x80 | ((k >> 12) & 0x3f);
buf[3] = 0x80 | ((k >> 6) & 0x3f);
buf[4] = 0x80 | (k & 0x3f);
retval = 5;
} else {
buf[0] = 0xfc | (k >> 30);
buf[1] = 0x80 | ((k >> 24) & 0x3f);
buf[2] = 0x80 | ((k >> 18) & 0x3f);
buf[3] = 0x80 | ((k >> 12) & 0x3f);
buf[4] = 0x80 | ((k >> 6) & 0x3f);
buf[5] = 0x80 | (k & 0x3f);
retval = 6;
}
buf[retval] = '\0';
return retval;
}
/* }}} */
/* {{{ php_unescape_html_entities
*/
PHPAPI char *php_unescape_html_entities(unsigned char *old, int oldlen, int *newlen, int all, int quote_style, char *hint_charset TSRMLS_DC)
{
int retlen;
int j, k;
char *replaced, *ret, *p, *q, *lim, *next;
enum entity_charset charset = determine_charset(hint_charset TSRMLS_CC);
unsigned char replacement[15];
int replacement_len;
ret = estrndup(old, oldlen);
retlen = oldlen;
if (!retlen) {
goto empty_source;
}
if (all) {
/* look for a match in the maps for this charset */
for (j = 0; entity_map[j].charset != cs_terminator; j++) {
if (entity_map[j].charset != charset)
continue;
for (k = entity_map[j].basechar; k <= entity_map[j].endchar; k++) {
unsigned char entity[32];
int entity_length = 0;
if (entity_map[j].table[k - entity_map[j].basechar] == NULL)
continue;
entity_length = slprintf(entity, sizeof(entity), "&%s;", entity_map[j].table[k - entity_map[j].basechar]);
if (entity_length >= sizeof(entity)) {
continue;
}
/* When we have MBCS entities in the tables above, this will need to handle it */
replacement_len = 0;
switch (charset) {
case cs_8859_1:
case cs_cp1252:
case cs_8859_15:
case cs_cp1251:
case cs_8859_5:
case cs_cp866:
case cs_koi8r:
replacement[0] = k;
replacement[1] = '\0';
replacement_len = 1;
break;
case cs_big5:
case cs_gb2312:
case cs_big5hkscs:
case cs_sjis:
case cs_eucjp:
/* we cannot properly handle those multibyte encodings
* with php_str_to_str. skip it. */
continue;
case cs_utf_8:
replacement_len = php_utf32_utf8(replacement, k);
break;
default:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "cannot yet handle MBCS!");
efree(ret);
return NULL;
}
if (php_memnstr(ret, entity, entity_length, ret+retlen)) {
replaced = php_str_to_str(ret, retlen, entity, entity_length, replacement, replacement_len, &retlen);
efree(ret);
ret = replaced;
}
}
}
}
for (j = 0; basic_entities[j].charcode != 0; j++) {
if (basic_entities[j].flags && (quote_style & basic_entities[j].flags) == 0)
continue;