1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/parser/expat/lib/moz_extensions.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,155 @@
1.4 +/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifdef IS_LITTLE_ENDIAN
1.10 +
1.11 +#define PREFIX(ident) little2_ ## ident
1.12 +#define BYTE_TYPE(p) LITTLE2_BYTE_TYPE(XmlGetUtf16InternalEncodingNS(), p)
1.13 +#define IS_NAME_CHAR_MINBPC(p) LITTLE2_IS_NAME_CHAR_MINBPC(0, p)
1.14 +#define IS_NMSTRT_CHAR_MINBPC(p) LITTLE2_IS_NMSTRT_CHAR_MINBPC(0, p)
1.15 +
1.16 +#else
1.17 +
1.18 +#define PREFIX(ident) big2_ ## ident
1.19 +#define BYTE_TYPE(p) BIG2_BYTE_TYPE(XmlGetUtf16InternalEncodingNS(), p)
1.20 +#define IS_NAME_CHAR_MINBPC(p) BIG2_IS_NAME_CHAR_MINBPC(0, p)
1.21 +#define IS_NMSTRT_CHAR_MINBPC(p) BIG2_IS_NMSTRT_CHAR_MINBPC(0, p)
1.22 +
1.23 +#endif
1.24 +
1.25 +#define MOZ_EXPAT_VALID_QNAME (0)
1.26 +#define MOZ_EXPAT_EMPTY_QNAME (1 << 0)
1.27 +#define MOZ_EXPAT_INVALID_CHARACTER (1 << 1)
1.28 +#define MOZ_EXPAT_MALFORMED (1 << 2)
1.29 +
1.30 +int MOZ_XMLCheckQName(const char* ptr, const char* end, int ns_aware,
1.31 + const char** colon)
1.32 +{
1.33 + int result = MOZ_EXPAT_VALID_QNAME;
1.34 + int nmstrt = 1;
1.35 + *colon = 0;
1.36 + if (ptr == end) {
1.37 + return MOZ_EXPAT_EMPTY_QNAME;
1.38 + }
1.39 + do {
1.40 + switch (BYTE_TYPE(ptr)) {
1.41 + case BT_COLON:
1.42 + /* We're namespace-aware and either first or last character is a colon
1.43 + or we've already seen a colon. */
1.44 + if (ns_aware && (nmstrt || *colon || ptr + 2 == end)) {
1.45 + return MOZ_EXPAT_MALFORMED;
1.46 + }
1.47 + *colon = ptr;
1.48 + nmstrt = ns_aware; /* e.g. "a:0" should be valid if !ns_aware */
1.49 + break;
1.50 + case BT_NONASCII:
1.51 + if (nmstrt && !IS_NMSTRT_CHAR_MINBPC(ptr)) {
1.52 + /* If this is a valid name character and we're namespace-aware, the
1.53 + QName is malformed. Otherwise, this character's invalid at the
1.54 + start of a name (or, if we're namespace-aware, at the start of a
1.55 + localpart). */
1.56 + return (IS_NAME_CHAR_MINBPC(ptr) && ns_aware) ?
1.57 + MOZ_EXPAT_MALFORMED :
1.58 + MOZ_EXPAT_INVALID_CHARACTER;
1.59 + }
1.60 + if (!IS_NAME_CHAR_MINBPC(ptr)) {
1.61 + return MOZ_EXPAT_INVALID_CHARACTER;
1.62 + }
1.63 + nmstrt = 0;
1.64 + break;
1.65 + case BT_NMSTRT:
1.66 + case BT_HEX:
1.67 + nmstrt = 0;
1.68 + break;
1.69 + case BT_DIGIT:
1.70 + case BT_NAME:
1.71 + case BT_MINUS:
1.72 + if (nmstrt) {
1.73 + return MOZ_EXPAT_INVALID_CHARACTER;
1.74 + }
1.75 + break;
1.76 + default:
1.77 + return MOZ_EXPAT_INVALID_CHARACTER;
1.78 + }
1.79 + ptr += 2;
1.80 + } while (ptr != end);
1.81 + return result;
1.82 +}
1.83 +
1.84 +int MOZ_XMLIsLetter(const char* ptr)
1.85 +{
1.86 + switch (BYTE_TYPE(ptr)) {
1.87 + case BT_NONASCII:
1.88 + if (!IS_NMSTRT_CHAR_MINBPC(ptr)) {
1.89 + return 0;
1.90 + }
1.91 + /* fall through */
1.92 + case BT_NMSTRT:
1.93 + case BT_HEX:
1.94 + return 1;
1.95 + default:
1.96 + return 0;
1.97 + }
1.98 +}
1.99 +
1.100 +int MOZ_XMLIsNCNameChar(const char* ptr)
1.101 +{
1.102 + switch (BYTE_TYPE(ptr)) {
1.103 + case BT_NONASCII:
1.104 + if (!IS_NAME_CHAR_MINBPC(ptr)) {
1.105 + return 0;
1.106 + }
1.107 + /* fall through */
1.108 + case BT_NMSTRT:
1.109 + case BT_HEX:
1.110 + case BT_DIGIT:
1.111 + case BT_NAME:
1.112 + case BT_MINUS:
1.113 + return 1;
1.114 + default:
1.115 + return 0;
1.116 + }
1.117 +}
1.118 +
1.119 +int MOZ_XMLTranslateEntity(const char* ptr, const char* end, const char** next,
1.120 + XML_Char* result)
1.121 +{
1.122 + const ENCODING* enc = XmlGetUtf16InternalEncodingNS();
1.123 + int tok = PREFIX(scanRef)(enc, ptr, end, next);
1.124 + if (tok <= XML_TOK_INVALID) {
1.125 + return 0;
1.126 + }
1.127 +
1.128 + if (tok == XML_TOK_CHAR_REF) {
1.129 + int n = XmlCharRefNumber(enc, ptr);
1.130 +
1.131 + /* We could get away with just < 0, but better safe than sorry. */
1.132 + if (n <= 0) {
1.133 + return 0;
1.134 + }
1.135 +
1.136 + return XmlUtf16Encode(n, (unsigned short*)result);
1.137 + }
1.138 +
1.139 + if (tok == XML_TOK_ENTITY_REF) {
1.140 + /* *next points to after the semicolon, so the entity ends at
1.141 + *next - enc->minBytesPerChar. */
1.142 + XML_Char ch =
1.143 + (XML_Char)XmlPredefinedEntityName(enc, ptr, *next - enc->minBytesPerChar);
1.144 + if (!ch) {
1.145 + return 0;
1.146 + }
1.147 +
1.148 + *result = ch;
1.149 + return 1;
1.150 + }
1.151 +
1.152 + return 0;
1.153 +}
1.154 +
1.155 +#undef PREFIX
1.156 +#undef BYTE_TYPE
1.157 +#undef IS_NAME_CHAR_MINBPC
1.158 +#undef IS_NMSTRT_CHAR_MINBPC
