[b7d3cc34] | 1 | /* |
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| 2 | The contents of this file are subject to the Mozilla Public License |
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| 3 | Version 1.1 (the "License"); you may not use this file except in |
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| 4 | compliance with the License. You may obtain a copy of the License at |
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| 5 | http://www.mozilla.org/MPL/ |
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| 6 | |
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| 7 | Software distributed under the License is distributed on an "AS IS" |
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| 8 | basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the |
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| 9 | License for the specific language governing rights and limitations |
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| 10 | under the License. |
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| 11 | |
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| 12 | The Original Code is expat. |
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| 13 | |
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| 14 | The Initial Developer of the Original Code is James Clark. |
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| 15 | Portions created by James Clark are Copyright (C) 1998, 1999 |
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| 16 | James Clark. All Rights Reserved. |
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| 17 | |
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| 18 | Contributor(s): |
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| 19 | |
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| 20 | */ |
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| 21 | |
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| 22 | #include "xmldef.h" |
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| 23 | #include "xmltok.h" |
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| 24 | #include "nametab.h" |
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| 25 | |
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| 26 | #define VTABLE1 \ |
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| 27 | { PREFIX(prologTok), PREFIX(contentTok), PREFIX(cdataSectionTok) }, \ |
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| 28 | { PREFIX(attributeValueTok), PREFIX(entityValueTok) }, \ |
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| 29 | PREFIX(sameName), \ |
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| 30 | PREFIX(nameMatchesAscii), \ |
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| 31 | PREFIX(nameLength), \ |
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| 32 | PREFIX(skipS), \ |
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| 33 | PREFIX(getAtts), \ |
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| 34 | PREFIX(charRefNumber), \ |
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| 35 | PREFIX(predefinedEntityName), \ |
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| 36 | PREFIX(updatePosition), \ |
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| 37 | PREFIX(isPublicId) |
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| 38 | |
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| 39 | #define VTABLE VTABLE1, PREFIX(toUtf8), PREFIX(toUtf16) |
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| 40 | |
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| 41 | #define UCS2_GET_NAMING(pages, hi, lo) \ |
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| 42 | (namingBitmap[(pages[hi] << 3) + ((lo) >> 5)] & (1 << ((lo) & 0x1F))) |
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| 43 | |
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| 44 | /* A 2 byte UTF-8 representation splits the characters 11 bits |
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| 45 | between the bottom 5 and 6 bits of the bytes. |
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| 46 | We need 8 bits to index into pages, 3 bits to add to that index and |
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| 47 | 5 bits to generate the mask. */ |
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| 48 | #define UTF8_GET_NAMING2(pages, byte) \ |
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| 49 | (namingBitmap[((pages)[(((byte)[0]) >> 2) & 7] << 3) \ |
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| 50 | + ((((byte)[0]) & 3) << 1) \ |
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| 51 | + ((((byte)[1]) >> 5) & 1)] \ |
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| 52 | & (1 << (((byte)[1]) & 0x1F))) |
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| 53 | |
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| 54 | /* A 3 byte UTF-8 representation splits the characters 16 bits |
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| 55 | between the bottom 4, 6 and 6 bits of the bytes. |
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| 56 | We need 8 bits to index into pages, 3 bits to add to that index and |
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| 57 | 5 bits to generate the mask. */ |
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| 58 | #define UTF8_GET_NAMING3(pages, byte) \ |
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| 59 | (namingBitmap[((pages)[((((byte)[0]) & 0xF) << 4) \ |
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| 60 | + ((((byte)[1]) >> 2) & 0xF)] \ |
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| 61 | << 3) \ |
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| 62 | + ((((byte)[1]) & 3) << 1) \ |
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| 63 | + ((((byte)[2]) >> 5) & 1)] \ |
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| 64 | & (1 << (((byte)[2]) & 0x1F))) |
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| 65 | |
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| 66 | #define UTF8_GET_NAMING(pages, p, n) \ |
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| 67 | ((n) == 2 \ |
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| 68 | ? UTF8_GET_NAMING2(pages, (const unsigned char *)(p)) \ |
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| 69 | : ((n) == 3 \ |
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| 70 | ? UTF8_GET_NAMING3(pages, (const unsigned char *)(p)) \ |
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| 71 | : 0)) |
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| 72 | |
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| 73 | #define UTF8_INVALID3(p) \ |
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| 74 | ((*p) == 0xED \ |
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| 75 | ? (((p)[1] & 0x20) != 0) \ |
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| 76 | : ((*p) == 0xEF \ |
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| 77 | ? ((p)[1] == 0xBF && ((p)[2] == 0xBF || (p)[2] == 0xBE)) \ |
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| 78 | : 0)) |
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| 79 | |
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| 80 | #define UTF8_INVALID4(p) ((*p) == 0xF4 && ((p)[1] & 0x30) != 0) |
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| 81 | |
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| 82 | static |
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| 83 | int isNever(const ENCODING *enc, const char *p) |
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| 84 | { |
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| 85 | return 0; |
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| 86 | } |
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| 87 | |
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| 88 | static |
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| 89 | int utf8_isName2(const ENCODING *enc, const char *p) |
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| 90 | { |
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| 91 | return UTF8_GET_NAMING2(namePages, (const unsigned char *)p); |
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| 92 | } |
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| 93 | |
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| 94 | static |
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| 95 | int utf8_isName3(const ENCODING *enc, const char *p) |
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| 96 | { |
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| 97 | return UTF8_GET_NAMING3(namePages, (const unsigned char *)p); |
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| 98 | } |
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| 99 | |
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| 100 | #define utf8_isName4 isNever |
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| 101 | |
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| 102 | static |
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| 103 | int utf8_isNmstrt2(const ENCODING *enc, const char *p) |
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| 104 | { |
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| 105 | return UTF8_GET_NAMING2(nmstrtPages, (const unsigned char *)p); |
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| 106 | } |
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| 107 | |
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| 108 | static |
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| 109 | int utf8_isNmstrt3(const ENCODING *enc, const char *p) |
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| 110 | { |
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| 111 | return UTF8_GET_NAMING3(nmstrtPages, (const unsigned char *)p); |
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| 112 | } |
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| 113 | |
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| 114 | #define utf8_isNmstrt4 isNever |
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| 115 | |
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| 116 | #define utf8_isInvalid2 isNever |
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| 117 | |
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| 118 | static |
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| 119 | int utf8_isInvalid3(const ENCODING *enc, const char *p) |
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| 120 | { |
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| 121 | return UTF8_INVALID3((const unsigned char *)p); |
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| 122 | } |
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| 123 | |
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| 124 | static |
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| 125 | int utf8_isInvalid4(const ENCODING *enc, const char *p) |
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| 126 | { |
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| 127 | return UTF8_INVALID4((const unsigned char *)p); |
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| 128 | } |
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| 129 | |
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| 130 | struct normal_encoding { |
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| 131 | ENCODING enc; |
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| 132 | unsigned char type[256]; |
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| 133 | #ifdef XML_MIN_SIZE |
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| 134 | int (*byteType)(const ENCODING *, const char *); |
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| 135 | int (*isNameMin)(const ENCODING *, const char *); |
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| 136 | int (*isNmstrtMin)(const ENCODING *, const char *); |
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| 137 | int (*byteToAscii)(const ENCODING *, const char *); |
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| 138 | int (*charMatches)(const ENCODING *, const char *, int); |
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| 139 | #endif /* XML_MIN_SIZE */ |
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| 140 | int (*isName2)(const ENCODING *, const char *); |
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| 141 | int (*isName3)(const ENCODING *, const char *); |
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| 142 | int (*isName4)(const ENCODING *, const char *); |
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| 143 | int (*isNmstrt2)(const ENCODING *, const char *); |
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| 144 | int (*isNmstrt3)(const ENCODING *, const char *); |
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| 145 | int (*isNmstrt4)(const ENCODING *, const char *); |
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| 146 | int (*isInvalid2)(const ENCODING *, const char *); |
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| 147 | int (*isInvalid3)(const ENCODING *, const char *); |
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| 148 | int (*isInvalid4)(const ENCODING *, const char *); |
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| 149 | }; |
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| 150 | |
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| 151 | #ifdef XML_MIN_SIZE |
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| 152 | |
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| 153 | #define STANDARD_VTABLE(E) \ |
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| 154 | E ## byteType, \ |
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| 155 | E ## isNameMin, \ |
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| 156 | E ## isNmstrtMin, \ |
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| 157 | E ## byteToAscii, \ |
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| 158 | E ## charMatches, |
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| 159 | |
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| 160 | #else |
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| 161 | |
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| 162 | #define STANDARD_VTABLE(E) /* as nothing */ |
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| 163 | |
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| 164 | #endif |
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| 165 | |
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| 166 | #define NORMAL_VTABLE(E) \ |
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| 167 | E ## isName2, \ |
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| 168 | E ## isName3, \ |
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| 169 | E ## isName4, \ |
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| 170 | E ## isNmstrt2, \ |
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| 171 | E ## isNmstrt3, \ |
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| 172 | E ## isNmstrt4, \ |
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| 173 | E ## isInvalid2, \ |
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| 174 | E ## isInvalid3, \ |
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| 175 | E ## isInvalid4 |
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| 176 | |
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| 177 | static int checkCharRefNumber(int); |
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| 178 | |
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| 179 | #include "xmltok_impl.h" |
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| 180 | |
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| 181 | #ifdef XML_MIN_SIZE |
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| 182 | #define sb_isNameMin isNever |
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| 183 | #define sb_isNmstrtMin isNever |
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| 184 | #endif |
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| 185 | |
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| 186 | #ifdef XML_MIN_SIZE |
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| 187 | #define MINBPC(enc) ((enc)->minBytesPerChar) |
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| 188 | #else |
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| 189 | /* minimum bytes per character */ |
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| 190 | #define MINBPC(enc) 1 |
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| 191 | #endif |
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| 192 | |
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| 193 | #define SB_BYTE_TYPE(enc, p) \ |
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| 194 | (((struct normal_encoding *)(enc))->type[(unsigned char)*(p)]) |
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| 195 | |
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| 196 | #ifdef XML_MIN_SIZE |
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| 197 | static |
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| 198 | int sb_byteType(const ENCODING *enc, const char *p) |
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| 199 | { |
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| 200 | return SB_BYTE_TYPE(enc, p); |
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| 201 | } |
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| 202 | #define BYTE_TYPE(enc, p) \ |
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| 203 | (((const struct normal_encoding *)(enc))->byteType(enc, p)) |
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| 204 | #else |
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| 205 | #define BYTE_TYPE(enc, p) SB_BYTE_TYPE(enc, p) |
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| 206 | #endif |
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| 207 | |
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| 208 | #ifdef XML_MIN_SIZE |
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| 209 | #define BYTE_TO_ASCII(enc, p) \ |
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| 210 | (((const struct normal_encoding *)(enc))->byteToAscii(enc, p)) |
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| 211 | static |
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| 212 | int sb_byteToAscii(const ENCODING *enc, const char *p) |
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| 213 | { |
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| 214 | return *p; |
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| 215 | } |
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| 216 | #else |
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| 217 | #define BYTE_TO_ASCII(enc, p) (*p) |
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| 218 | #endif |
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| 219 | |
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| 220 | #define IS_NAME_CHAR(enc, p, n) \ |
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| 221 | (((const struct normal_encoding *)(enc))->isName ## n(enc, p)) |
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| 222 | #define IS_NMSTRT_CHAR(enc, p, n) \ |
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| 223 | (((const struct normal_encoding *)(enc))->isNmstrt ## n(enc, p)) |
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| 224 | #define IS_INVALID_CHAR(enc, p, n) \ |
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| 225 | (((const struct normal_encoding *)(enc))->isInvalid ## n(enc, p)) |
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| 226 | |
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| 227 | #ifdef XML_MIN_SIZE |
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| 228 | #define IS_NAME_CHAR_MINBPC(enc, p) \ |
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| 229 | (((const struct normal_encoding *)(enc))->isNameMin(enc, p)) |
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| 230 | #define IS_NMSTRT_CHAR_MINBPC(enc, p) \ |
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| 231 | (((const struct normal_encoding *)(enc))->isNmstrtMin(enc, p)) |
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| 232 | #else |
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| 233 | #define IS_NAME_CHAR_MINBPC(enc, p) (0) |
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| 234 | #define IS_NMSTRT_CHAR_MINBPC(enc, p) (0) |
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| 235 | #endif |
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| 236 | |
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| 237 | #ifdef XML_MIN_SIZE |
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| 238 | #define CHAR_MATCHES(enc, p, c) \ |
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| 239 | (((const struct normal_encoding *)(enc))->charMatches(enc, p, c)) |
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| 240 | static |
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| 241 | int sb_charMatches(const ENCODING *enc, const char *p, int c) |
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| 242 | { |
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| 243 | return *p == c; |
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| 244 | } |
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| 245 | #else |
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| 246 | /* c is an ASCII character */ |
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| 247 | #define CHAR_MATCHES(enc, p, c) (*(p) == c) |
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| 248 | #endif |
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| 249 | |
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| 250 | #define PREFIX(ident) normal_ ## ident |
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| 251 | #include "xmltok_impl.c" |
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| 252 | |
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| 253 | #undef MINBPC |
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| 254 | #undef BYTE_TYPE |
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| 255 | #undef BYTE_TO_ASCII |
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| 256 | #undef CHAR_MATCHES |
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| 257 | #undef IS_NAME_CHAR |
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| 258 | #undef IS_NAME_CHAR_MINBPC |
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| 259 | #undef IS_NMSTRT_CHAR |
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| 260 | #undef IS_NMSTRT_CHAR_MINBPC |
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| 261 | #undef IS_INVALID_CHAR |
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| 262 | |
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| 263 | enum { /* UTF8_cvalN is value of masked first byte of N byte sequence */ |
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| 264 | UTF8_cval1 = 0x00, |
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| 265 | UTF8_cval2 = 0xc0, |
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| 266 | UTF8_cval3 = 0xe0, |
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| 267 | UTF8_cval4 = 0xf0 |
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| 268 | }; |
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| 269 | |
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| 270 | static |
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| 271 | void utf8_toUtf8(const ENCODING *enc, |
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| 272 | const char **fromP, const char *fromLim, |
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| 273 | char **toP, const char *toLim) |
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| 274 | { |
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| 275 | char *to; |
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| 276 | const char *from; |
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| 277 | if (fromLim - *fromP > toLim - *toP) { |
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| 278 | /* Avoid copying partial characters. */ |
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| 279 | for (fromLim = *fromP + (toLim - *toP); fromLim > *fromP; fromLim--) |
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| 280 | if (((unsigned char)fromLim[-1] & 0xc0) != 0x80) |
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| 281 | break; |
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| 282 | } |
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| 283 | for (to = *toP, from = *fromP; from != fromLim; from++, to++) |
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| 284 | *to = *from; |
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| 285 | *fromP = from; |
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| 286 | *toP = to; |
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| 287 | } |
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| 288 | |
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| 289 | static |
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| 290 | void utf8_toUtf16(const ENCODING *enc, |
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| 291 | const char **fromP, const char *fromLim, |
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| 292 | unsigned short **toP, const unsigned short *toLim) |
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| 293 | { |
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| 294 | unsigned short *to = *toP; |
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| 295 | const char *from = *fromP; |
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| 296 | while (from != fromLim && to != toLim) { |
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| 297 | switch (((struct normal_encoding *)enc)->type[(unsigned char)*from]) { |
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| 298 | case BT_LEAD2: |
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| 299 | *to++ = ((from[0] & 0x1f) << 6) | (from[1] & 0x3f); |
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| 300 | from += 2; |
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| 301 | break; |
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| 302 | case BT_LEAD3: |
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| 303 | *to++ = ((from[0] & 0xf) << 12) | ((from[1] & 0x3f) << 6) | (from[2] & 0x3f); |
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| 304 | from += 3; |
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| 305 | break; |
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| 306 | case BT_LEAD4: |
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| 307 | { |
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| 308 | unsigned long n; |
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| 309 | if (to + 1 == toLim) |
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| 310 | break; |
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| 311 | n = ((from[0] & 0x7) << 18) | ((from[1] & 0x3f) << 12) | ((from[2] & 0x3f) << 6) | (from[3] & 0x3f); |
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| 312 | n -= 0x10000; |
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| 313 | to[0] = (unsigned short)((n >> 10) | 0xD800); |
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| 314 | to[1] = (unsigned short)((n & 0x3FF) | 0xDC00); |
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| 315 | to += 2; |
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| 316 | from += 4; |
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| 317 | } |
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| 318 | break; |
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| 319 | default: |
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| 320 | *to++ = *from++; |
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| 321 | break; |
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| 322 | } |
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| 323 | } |
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| 324 | *fromP = from; |
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| 325 | *toP = to; |
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| 326 | } |
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| 327 | |
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| 328 | #ifdef XML_NS |
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| 329 | static const struct normal_encoding utf8_encoding_ns = { |
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| 330 | { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
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| 331 | { |
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| 332 | #include "asciitab.h" |
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| 333 | #include "utf8tab.h" |
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| 334 | }, |
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| 335 | STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
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| 336 | }; |
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| 337 | #endif |
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| 338 | |
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| 339 | static const struct normal_encoding utf8_encoding = { |
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| 340 | { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
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| 341 | { |
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| 342 | #define BT_COLON BT_NMSTRT |
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| 343 | #include "asciitab.h" |
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| 344 | #undef BT_COLON |
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| 345 | #include "utf8tab.h" |
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| 346 | }, |
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| 347 | STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
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| 348 | }; |
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| 349 | |
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| 350 | #ifdef XML_NS |
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| 351 | |
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| 352 | static const struct normal_encoding internal_utf8_encoding_ns = { |
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| 353 | { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
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| 354 | { |
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| 355 | #include "iasciitab.h" |
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| 356 | #include "utf8tab.h" |
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| 357 | }, |
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| 358 | STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
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| 359 | }; |
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| 360 | |
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| 361 | #endif |
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| 362 | |
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| 363 | static const struct normal_encoding internal_utf8_encoding = { |
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| 364 | { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
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| 365 | { |
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| 366 | #define BT_COLON BT_NMSTRT |
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| 367 | #include "iasciitab.h" |
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| 368 | #undef BT_COLON |
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| 369 | #include "utf8tab.h" |
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| 370 | }, |
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| 371 | STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
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| 372 | }; |
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| 373 | |
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| 374 | static |
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| 375 | void latin1_toUtf8(const ENCODING *enc, |
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| 376 | const char **fromP, const char *fromLim, |
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| 377 | char **toP, const char *toLim) |
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| 378 | { |
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| 379 | for (;;) { |
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| 380 | unsigned char c; |
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| 381 | if (*fromP == fromLim) |
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| 382 | break; |
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| 383 | c = (unsigned char)**fromP; |
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| 384 | if (c & 0x80) { |
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| 385 | if (toLim - *toP < 2) |
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| 386 | break; |
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| 387 | *(*toP)++ = ((c >> 6) | UTF8_cval2); |
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| 388 | *(*toP)++ = ((c & 0x3f) | 0x80); |
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| 389 | (*fromP)++; |
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| 390 | } |
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| 391 | else { |
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| 392 | if (*toP == toLim) |
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| 393 | break; |
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| 394 | *(*toP)++ = *(*fromP)++; |
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| 395 | } |
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| 396 | } |
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| 397 | } |
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| 398 | |
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| 399 | static |
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| 400 | void latin1_toUtf16(const ENCODING *enc, |
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| 401 | const char **fromP, const char *fromLim, |
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| 402 | unsigned short **toP, const unsigned short *toLim) |
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| 403 | { |
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| 404 | while (*fromP != fromLim && *toP != toLim) |
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| 405 | *(*toP)++ = (unsigned char)*(*fromP)++; |
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| 406 | } |
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| 407 | |
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| 408 | #ifdef XML_NS |
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| 409 | |
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| 410 | static const struct normal_encoding latin1_encoding_ns = { |
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| 411 | { VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0 }, |
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| 412 | { |
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| 413 | #include "asciitab.h" |
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| 414 | #include "latin1tab.h" |
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| 415 | }, |
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| 416 | STANDARD_VTABLE(sb_) |
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| 417 | }; |
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| 418 | |
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| 419 | #endif |
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| 420 | |
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| 421 | static const struct normal_encoding latin1_encoding = { |
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| 422 | { VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0 }, |
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| 423 | { |
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| 424 | #define BT_COLON BT_NMSTRT |
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| 425 | #include "asciitab.h" |
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| 426 | #undef BT_COLON |
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| 427 | #include "latin1tab.h" |
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| 428 | }, |
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| 429 | STANDARD_VTABLE(sb_) |
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| 430 | }; |
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| 431 | |
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| 432 | static |
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| 433 | void ascii_toUtf8(const ENCODING *enc, |
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| 434 | const char **fromP, const char *fromLim, |
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| 435 | char **toP, const char *toLim) |
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| 436 | { |
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| 437 | while (*fromP != fromLim && *toP != toLim) |
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| 438 | *(*toP)++ = *(*fromP)++; |
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| 439 | } |
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| 440 | |
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| 441 | #ifdef XML_NS |
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| 442 | |
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| 443 | static const struct normal_encoding ascii_encoding_ns = { |
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| 444 | { VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0 }, |
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| 445 | { |
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| 446 | #include "asciitab.h" |
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| 447 | /* BT_NONXML == 0 */ |
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| 448 | }, |
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| 449 | STANDARD_VTABLE(sb_) |
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| 450 | }; |
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| 451 | |
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| 452 | #endif |
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| 453 | |
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| 454 | static const struct normal_encoding ascii_encoding = { |
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| 455 | { VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0 }, |
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| 456 | { |
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| 457 | #define BT_COLON BT_NMSTRT |
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| 458 | #include "asciitab.h" |
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| 459 | #undef BT_COLON |
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| 460 | /* BT_NONXML == 0 */ |
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| 461 | }, |
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| 462 | STANDARD_VTABLE(sb_) |
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| 463 | }; |
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| 464 | |
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| 465 | static int unicode_byte_type(char hi, char lo) |
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| 466 | { |
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| 467 | switch ((unsigned char)hi) { |
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| 468 | case 0xD8: case 0xD9: case 0xDA: case 0xDB: |
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| 469 | return BT_LEAD4; |
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| 470 | case 0xDC: case 0xDD: case 0xDE: case 0xDF: |
---|
| 471 | return BT_TRAIL; |
---|
| 472 | case 0xFF: |
---|
| 473 | switch ((unsigned char)lo) { |
---|
| 474 | case 0xFF: |
---|
| 475 | case 0xFE: |
---|
| 476 | return BT_NONXML; |
---|
| 477 | } |
---|
| 478 | break; |
---|
| 479 | } |
---|
| 480 | return BT_NONASCII; |
---|
| 481 | } |
---|
| 482 | |
---|
| 483 | #define DEFINE_UTF16_TO_UTF8(E) \ |
---|
| 484 | static \ |
---|
| 485 | void E ## toUtf8(const ENCODING *enc, \ |
---|
| 486 | const char **fromP, const char *fromLim, \ |
---|
| 487 | char **toP, const char *toLim) \ |
---|
| 488 | { \ |
---|
| 489 | const char *from; \ |
---|
| 490 | for (from = *fromP; from != fromLim; from += 2) { \ |
---|
| 491 | int plane; \ |
---|
| 492 | unsigned char lo2; \ |
---|
| 493 | unsigned char lo = GET_LO(from); \ |
---|
| 494 | unsigned char hi = GET_HI(from); \ |
---|
| 495 | switch (hi) { \ |
---|
| 496 | case 0: \ |
---|
| 497 | if (lo < 0x80) { \ |
---|
| 498 | if (*toP == toLim) { \ |
---|
| 499 | *fromP = from; \ |
---|
| 500 | return; \ |
---|
| 501 | } \ |
---|
| 502 | *(*toP)++ = lo; \ |
---|
| 503 | break; \ |
---|
| 504 | } \ |
---|
| 505 | /* fall through */ \ |
---|
| 506 | case 0x1: case 0x2: case 0x3: \ |
---|
| 507 | case 0x4: case 0x5: case 0x6: case 0x7: \ |
---|
| 508 | if (toLim - *toP < 2) { \ |
---|
| 509 | *fromP = from; \ |
---|
| 510 | return; \ |
---|
| 511 | } \ |
---|
| 512 | *(*toP)++ = ((lo >> 6) | (hi << 2) | UTF8_cval2); \ |
---|
| 513 | *(*toP)++ = ((lo & 0x3f) | 0x80); \ |
---|
| 514 | break; \ |
---|
| 515 | default: \ |
---|
| 516 | if (toLim - *toP < 3) { \ |
---|
| 517 | *fromP = from; \ |
---|
| 518 | return; \ |
---|
| 519 | } \ |
---|
| 520 | /* 16 bits divided 4, 6, 6 amongst 3 bytes */ \ |
---|
| 521 | *(*toP)++ = ((hi >> 4) | UTF8_cval3); \ |
---|
| 522 | *(*toP)++ = (((hi & 0xf) << 2) | (lo >> 6) | 0x80); \ |
---|
| 523 | *(*toP)++ = ((lo & 0x3f) | 0x80); \ |
---|
| 524 | break; \ |
---|
| 525 | case 0xD8: case 0xD9: case 0xDA: case 0xDB: \ |
---|
| 526 | if (toLim - *toP < 4) { \ |
---|
| 527 | *fromP = from; \ |
---|
| 528 | return; \ |
---|
| 529 | } \ |
---|
| 530 | plane = (((hi & 0x3) << 2) | ((lo >> 6) & 0x3)) + 1; \ |
---|
| 531 | *(*toP)++ = ((plane >> 2) | UTF8_cval4); \ |
---|
| 532 | *(*toP)++ = (((lo >> 2) & 0xF) | ((plane & 0x3) << 4) | 0x80); \ |
---|
| 533 | from += 2; \ |
---|
| 534 | lo2 = GET_LO(from); \ |
---|
| 535 | *(*toP)++ = (((lo & 0x3) << 4) \ |
---|
| 536 | | ((GET_HI(from) & 0x3) << 2) \ |
---|
| 537 | | (lo2 >> 6) \ |
---|
| 538 | | 0x80); \ |
---|
| 539 | *(*toP)++ = ((lo2 & 0x3f) | 0x80); \ |
---|
| 540 | break; \ |
---|
| 541 | } \ |
---|
| 542 | } \ |
---|
| 543 | *fromP = from; \ |
---|
| 544 | } |
---|
| 545 | |
---|
| 546 | #define DEFINE_UTF16_TO_UTF16(E) \ |
---|
| 547 | static \ |
---|
| 548 | void E ## toUtf16(const ENCODING *enc, \ |
---|
| 549 | const char **fromP, const char *fromLim, \ |
---|
| 550 | unsigned short **toP, const unsigned short *toLim) \ |
---|
| 551 | { \ |
---|
| 552 | /* Avoid copying first half only of surrogate */ \ |
---|
| 553 | if (fromLim - *fromP > ((toLim - *toP) << 1) \ |
---|
| 554 | && (GET_HI(fromLim - 2) & 0xF8) == 0xD8) \ |
---|
| 555 | fromLim -= 2; \ |
---|
| 556 | for (; *fromP != fromLim && *toP != toLim; *fromP += 2) \ |
---|
| 557 | *(*toP)++ = (GET_HI(*fromP) << 8) | GET_LO(*fromP); \ |
---|
| 558 | } |
---|
| 559 | |
---|
| 560 | #define SET2(ptr, ch) \ |
---|
| 561 | (((ptr)[0] = ((ch) & 0xff)), ((ptr)[1] = ((ch) >> 8))) |
---|
| 562 | #define GET_LO(ptr) ((unsigned char)(ptr)[0]) |
---|
| 563 | #define GET_HI(ptr) ((unsigned char)(ptr)[1]) |
---|
| 564 | |
---|
| 565 | DEFINE_UTF16_TO_UTF8(little2_) |
---|
| 566 | DEFINE_UTF16_TO_UTF16(little2_) |
---|
| 567 | |
---|
| 568 | #undef SET2 |
---|
| 569 | #undef GET_LO |
---|
| 570 | #undef GET_HI |
---|
| 571 | |
---|
| 572 | #define SET2(ptr, ch) \ |
---|
| 573 | (((ptr)[0] = ((ch) >> 8)), ((ptr)[1] = ((ch) & 0xFF))) |
---|
| 574 | #define GET_LO(ptr) ((unsigned char)(ptr)[1]) |
---|
| 575 | #define GET_HI(ptr) ((unsigned char)(ptr)[0]) |
---|
| 576 | |
---|
| 577 | DEFINE_UTF16_TO_UTF8(big2_) |
---|
| 578 | DEFINE_UTF16_TO_UTF16(big2_) |
---|
| 579 | |
---|
| 580 | #undef SET2 |
---|
| 581 | #undef GET_LO |
---|
| 582 | #undef GET_HI |
---|
| 583 | |
---|
| 584 | #define LITTLE2_BYTE_TYPE(enc, p) \ |
---|
| 585 | ((p)[1] == 0 \ |
---|
| 586 | ? ((struct normal_encoding *)(enc))->type[(unsigned char)*(p)] \ |
---|
| 587 | : unicode_byte_type((p)[1], (p)[0])) |
---|
| 588 | #define LITTLE2_BYTE_TO_ASCII(enc, p) ((p)[1] == 0 ? (p)[0] : -1) |
---|
| 589 | #define LITTLE2_CHAR_MATCHES(enc, p, c) ((p)[1] == 0 && (p)[0] == c) |
---|
| 590 | #define LITTLE2_IS_NAME_CHAR_MINBPC(enc, p) \ |
---|
| 591 | UCS2_GET_NAMING(namePages, (unsigned char)p[1], (unsigned char)p[0]) |
---|
| 592 | #define LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p) \ |
---|
| 593 | UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[1], (unsigned char)p[0]) |
---|
| 594 | |
---|
| 595 | #ifdef XML_MIN_SIZE |
---|
| 596 | |
---|
| 597 | static |
---|
| 598 | int little2_byteType(const ENCODING *enc, const char *p) |
---|
| 599 | { |
---|
| 600 | return LITTLE2_BYTE_TYPE(enc, p); |
---|
| 601 | } |
---|
| 602 | |
---|
| 603 | static |
---|
| 604 | int little2_byteToAscii(const ENCODING *enc, const char *p) |
---|
| 605 | { |
---|
| 606 | return LITTLE2_BYTE_TO_ASCII(enc, p); |
---|
| 607 | } |
---|
| 608 | |
---|
| 609 | static |
---|
| 610 | int little2_charMatches(const ENCODING *enc, const char *p, int c) |
---|
| 611 | { |
---|
| 612 | return LITTLE2_CHAR_MATCHES(enc, p, c); |
---|
| 613 | } |
---|
| 614 | |
---|
| 615 | static |
---|
| 616 | int little2_isNameMin(const ENCODING *enc, const char *p) |
---|
| 617 | { |
---|
| 618 | return LITTLE2_IS_NAME_CHAR_MINBPC(enc, p); |
---|
| 619 | } |
---|
| 620 | |
---|
| 621 | static |
---|
| 622 | int little2_isNmstrtMin(const ENCODING *enc, const char *p) |
---|
| 623 | { |
---|
| 624 | return LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p); |
---|
| 625 | } |
---|
| 626 | |
---|
| 627 | #undef VTABLE |
---|
| 628 | #define VTABLE VTABLE1, little2_toUtf8, little2_toUtf16 |
---|
| 629 | |
---|
| 630 | #else /* not XML_MIN_SIZE */ |
---|
| 631 | |
---|
| 632 | #undef PREFIX |
---|
| 633 | #define PREFIX(ident) little2_ ## ident |
---|
| 634 | #define MINBPC(enc) 2 |
---|
| 635 | /* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */ |
---|
| 636 | #define BYTE_TYPE(enc, p) LITTLE2_BYTE_TYPE(enc, p) |
---|
| 637 | #define BYTE_TO_ASCII(enc, p) LITTLE2_BYTE_TO_ASCII(enc, p) |
---|
| 638 | #define CHAR_MATCHES(enc, p, c) LITTLE2_CHAR_MATCHES(enc, p, c) |
---|
| 639 | #define IS_NAME_CHAR(enc, p, n) 0 |
---|
| 640 | #define IS_NAME_CHAR_MINBPC(enc, p) LITTLE2_IS_NAME_CHAR_MINBPC(enc, p) |
---|
| 641 | #define IS_NMSTRT_CHAR(enc, p, n) (0) |
---|
| 642 | #define IS_NMSTRT_CHAR_MINBPC(enc, p) LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p) |
---|
| 643 | |
---|
| 644 | #include "xmltok_impl.c" |
---|
| 645 | |
---|
| 646 | #undef MINBPC |
---|
| 647 | #undef BYTE_TYPE |
---|
| 648 | #undef BYTE_TO_ASCII |
---|
| 649 | #undef CHAR_MATCHES |
---|
| 650 | #undef IS_NAME_CHAR |
---|
| 651 | #undef IS_NAME_CHAR_MINBPC |
---|
| 652 | #undef IS_NMSTRT_CHAR |
---|
| 653 | #undef IS_NMSTRT_CHAR_MINBPC |
---|
| 654 | #undef IS_INVALID_CHAR |
---|
| 655 | |
---|
| 656 | #endif /* not XML_MIN_SIZE */ |
---|
| 657 | |
---|
| 658 | #ifdef XML_NS |
---|
| 659 | |
---|
| 660 | static const struct normal_encoding little2_encoding_ns = { |
---|
| 661 | { VTABLE, 2, 0, |
---|
| 662 | #if XML_BYTE_ORDER == 12 |
---|
| 663 | 1 |
---|
| 664 | #else |
---|
| 665 | 0 |
---|
| 666 | #endif |
---|
| 667 | }, |
---|
| 668 | { |
---|
| 669 | #include "asciitab.h" |
---|
| 670 | #include "latin1tab.h" |
---|
| 671 | }, |
---|
| 672 | STANDARD_VTABLE(little2_) |
---|
| 673 | }; |
---|
| 674 | |
---|
| 675 | #endif |
---|
| 676 | |
---|
| 677 | static const struct normal_encoding little2_encoding = { |
---|
| 678 | { VTABLE, 2, 0, |
---|
| 679 | #if XML_BYTE_ORDER == 12 |
---|
| 680 | 1 |
---|
| 681 | #else |
---|
| 682 | 0 |
---|
| 683 | #endif |
---|
| 684 | }, |
---|
| 685 | { |
---|
| 686 | #define BT_COLON BT_NMSTRT |
---|
| 687 | #include "asciitab.h" |
---|
| 688 | #undef BT_COLON |
---|
| 689 | #include "latin1tab.h" |
---|
| 690 | }, |
---|
| 691 | STANDARD_VTABLE(little2_) |
---|
| 692 | }; |
---|
| 693 | |
---|
| 694 | #if XML_BYTE_ORDER != 21 |
---|
| 695 | |
---|
| 696 | #ifdef XML_NS |
---|
| 697 | |
---|
| 698 | static const struct normal_encoding internal_little2_encoding_ns = { |
---|
| 699 | { VTABLE, 2, 0, 1 }, |
---|
| 700 | { |
---|
| 701 | #include "iasciitab.h" |
---|
| 702 | #include "latin1tab.h" |
---|
| 703 | }, |
---|
| 704 | STANDARD_VTABLE(little2_) |
---|
| 705 | }; |
---|
| 706 | |
---|
| 707 | #endif |
---|
| 708 | |
---|
| 709 | static const struct normal_encoding internal_little2_encoding = { |
---|
| 710 | { VTABLE, 2, 0, 1 }, |
---|
| 711 | { |
---|
| 712 | #define BT_COLON BT_NMSTRT |
---|
| 713 | #include "iasciitab.h" |
---|
| 714 | #undef BT_COLON |
---|
| 715 | #include "latin1tab.h" |
---|
| 716 | }, |
---|
| 717 | STANDARD_VTABLE(little2_) |
---|
| 718 | }; |
---|
| 719 | |
---|
| 720 | #endif |
---|
| 721 | |
---|
| 722 | |
---|
| 723 | #define BIG2_BYTE_TYPE(enc, p) \ |
---|
| 724 | ((p)[0] == 0 \ |
---|
| 725 | ? ((struct normal_encoding *)(enc))->type[(unsigned char)(p)[1]] \ |
---|
| 726 | : unicode_byte_type((p)[0], (p)[1])) |
---|
| 727 | #define BIG2_BYTE_TO_ASCII(enc, p) ((p)[0] == 0 ? (p)[1] : -1) |
---|
| 728 | #define BIG2_CHAR_MATCHES(enc, p, c) ((p)[0] == 0 && (p)[1] == c) |
---|
| 729 | #define BIG2_IS_NAME_CHAR_MINBPC(enc, p) \ |
---|
| 730 | UCS2_GET_NAMING(namePages, (unsigned char)p[0], (unsigned char)p[1]) |
---|
| 731 | #define BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p) \ |
---|
| 732 | UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[0], (unsigned char)p[1]) |
---|
| 733 | |
---|
| 734 | #ifdef XML_MIN_SIZE |
---|
| 735 | |
---|
| 736 | static |
---|
| 737 | int big2_byteType(const ENCODING *enc, const char *p) |
---|
| 738 | { |
---|
| 739 | return BIG2_BYTE_TYPE(enc, p); |
---|
| 740 | } |
---|
| 741 | |
---|
| 742 | static |
---|
| 743 | int big2_byteToAscii(const ENCODING *enc, const char *p) |
---|
| 744 | { |
---|
| 745 | return BIG2_BYTE_TO_ASCII(enc, p); |
---|
| 746 | } |
---|
| 747 | |
---|
| 748 | static |
---|
| 749 | int big2_charMatches(const ENCODING *enc, const char *p, int c) |
---|
| 750 | { |
---|
| 751 | return BIG2_CHAR_MATCHES(enc, p, c); |
---|
| 752 | } |
---|
| 753 | |
---|
| 754 | static |
---|
| 755 | int big2_isNameMin(const ENCODING *enc, const char *p) |
---|
| 756 | { |
---|
| 757 | return BIG2_IS_NAME_CHAR_MINBPC(enc, p); |
---|
| 758 | } |
---|
| 759 | |
---|
| 760 | static |
---|
| 761 | int big2_isNmstrtMin(const ENCODING *enc, const char *p) |
---|
| 762 | { |
---|
| 763 | return BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p); |
---|
| 764 | } |
---|
| 765 | |
---|
| 766 | #undef VTABLE |
---|
| 767 | #define VTABLE VTABLE1, big2_toUtf8, big2_toUtf16 |
---|
| 768 | |
---|
| 769 | #else /* not XML_MIN_SIZE */ |
---|
| 770 | |
---|
| 771 | #undef PREFIX |
---|
| 772 | #define PREFIX(ident) big2_ ## ident |
---|
| 773 | #define MINBPC(enc) 2 |
---|
| 774 | /* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */ |
---|
| 775 | #define BYTE_TYPE(enc, p) BIG2_BYTE_TYPE(enc, p) |
---|
| 776 | #define BYTE_TO_ASCII(enc, p) BIG2_BYTE_TO_ASCII(enc, p) |
---|
| 777 | #define CHAR_MATCHES(enc, p, c) BIG2_CHAR_MATCHES(enc, p, c) |
---|
| 778 | #define IS_NAME_CHAR(enc, p, n) 0 |
---|
| 779 | #define IS_NAME_CHAR_MINBPC(enc, p) BIG2_IS_NAME_CHAR_MINBPC(enc, p) |
---|
| 780 | #define IS_NMSTRT_CHAR(enc, p, n) (0) |
---|
| 781 | #define IS_NMSTRT_CHAR_MINBPC(enc, p) BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p) |
---|
| 782 | |
---|
| 783 | #include "xmltok_impl.c" |
---|
| 784 | |
---|
| 785 | #undef MINBPC |
---|
| 786 | #undef BYTE_TYPE |
---|
| 787 | #undef BYTE_TO_ASCII |
---|
| 788 | #undef CHAR_MATCHES |
---|
| 789 | #undef IS_NAME_CHAR |
---|
| 790 | #undef IS_NAME_CHAR_MINBPC |
---|
| 791 | #undef IS_NMSTRT_CHAR |
---|
| 792 | #undef IS_NMSTRT_CHAR_MINBPC |
---|
| 793 | #undef IS_INVALID_CHAR |
---|
| 794 | |
---|
| 795 | #endif /* not XML_MIN_SIZE */ |
---|
| 796 | |
---|
| 797 | #ifdef XML_NS |
---|
| 798 | |
---|
| 799 | static const struct normal_encoding big2_encoding_ns = { |
---|
| 800 | { VTABLE, 2, 0, |
---|
| 801 | #if XML_BYTE_ORDER == 21 |
---|
| 802 | 1 |
---|
| 803 | #else |
---|
| 804 | 0 |
---|
| 805 | #endif |
---|
| 806 | }, |
---|
| 807 | { |
---|
| 808 | #include "asciitab.h" |
---|
| 809 | #include "latin1tab.h" |
---|
| 810 | }, |
---|
| 811 | STANDARD_VTABLE(big2_) |
---|
| 812 | }; |
---|
| 813 | |
---|
| 814 | #endif |
---|
| 815 | |
---|
| 816 | static const struct normal_encoding big2_encoding = { |
---|
| 817 | { VTABLE, 2, 0, |
---|
| 818 | #if XML_BYTE_ORDER == 21 |
---|
| 819 | 1 |
---|
| 820 | #else |
---|
| 821 | 0 |
---|
| 822 | #endif |
---|
| 823 | }, |
---|
| 824 | { |
---|
| 825 | #define BT_COLON BT_NMSTRT |
---|
| 826 | #include "asciitab.h" |
---|
| 827 | #undef BT_COLON |
---|
| 828 | #include "latin1tab.h" |
---|
| 829 | }, |
---|
| 830 | STANDARD_VTABLE(big2_) |
---|
| 831 | }; |
---|
| 832 | |
---|
| 833 | #if XML_BYTE_ORDER != 12 |
---|
| 834 | |
---|
| 835 | #ifdef XML_NS |
---|
| 836 | |
---|
| 837 | static const struct normal_encoding internal_big2_encoding_ns = { |
---|
| 838 | { VTABLE, 2, 0, 1 }, |
---|
| 839 | { |
---|
| 840 | #include "iasciitab.h" |
---|
| 841 | #include "latin1tab.h" |
---|
| 842 | }, |
---|
| 843 | STANDARD_VTABLE(big2_) |
---|
| 844 | }; |
---|
| 845 | |
---|
| 846 | #endif |
---|
| 847 | |
---|
| 848 | static const struct normal_encoding internal_big2_encoding = { |
---|
| 849 | { VTABLE, 2, 0, 1 }, |
---|
| 850 | { |
---|
| 851 | #define BT_COLON BT_NMSTRT |
---|
| 852 | #include "iasciitab.h" |
---|
| 853 | #undef BT_COLON |
---|
| 854 | #include "latin1tab.h" |
---|
| 855 | }, |
---|
| 856 | STANDARD_VTABLE(big2_) |
---|
| 857 | }; |
---|
| 858 | |
---|
| 859 | #endif |
---|
| 860 | |
---|
| 861 | #undef PREFIX |
---|
| 862 | |
---|
| 863 | static |
---|
| 864 | int streqci(const char *s1, const char *s2) |
---|
| 865 | { |
---|
| 866 | for (;;) { |
---|
| 867 | char c1 = *s1++; |
---|
| 868 | char c2 = *s2++; |
---|
| 869 | if ('a' <= c1 && c1 <= 'z') |
---|
| 870 | c1 += 'A' - 'a'; |
---|
| 871 | if ('a' <= c2 && c2 <= 'z') |
---|
| 872 | c2 += 'A' - 'a'; |
---|
| 873 | if (c1 != c2) |
---|
| 874 | return 0; |
---|
| 875 | if (!c1) |
---|
| 876 | break; |
---|
| 877 | } |
---|
| 878 | return 1; |
---|
| 879 | } |
---|
| 880 | |
---|
| 881 | static |
---|
| 882 | void initUpdatePosition(const ENCODING *enc, const char *ptr, |
---|
| 883 | const char *end, POSITION *pos) |
---|
| 884 | { |
---|
| 885 | normal_updatePosition(&utf8_encoding.enc, ptr, end, pos); |
---|
| 886 | } |
---|
| 887 | |
---|
| 888 | static |
---|
| 889 | int toAscii(const ENCODING *enc, const char *ptr, const char *end) |
---|
| 890 | { |
---|
| 891 | char buf[1]; |
---|
| 892 | char *p = buf; |
---|
| 893 | XmlUtf8Convert(enc, &ptr, end, &p, p + 1); |
---|
| 894 | if (p == buf) |
---|
| 895 | return -1; |
---|
| 896 | else |
---|
| 897 | return buf[0]; |
---|
| 898 | } |
---|
| 899 | |
---|
| 900 | static |
---|
| 901 | int isSpace(int c) |
---|
| 902 | { |
---|
| 903 | switch (c) { |
---|
| 904 | case 0x20: |
---|
| 905 | case 0xD: |
---|
| 906 | case 0xA: |
---|
| 907 | case 0x9: |
---|
| 908 | return 1; |
---|
| 909 | } |
---|
| 910 | return 0; |
---|
| 911 | } |
---|
| 912 | |
---|
| 913 | /* Return 1 if there's just optional white space |
---|
| 914 | or there's an S followed by name=val. */ |
---|
| 915 | static |
---|
| 916 | int parsePseudoAttribute(const ENCODING *enc, |
---|
| 917 | const char *ptr, |
---|
| 918 | const char *end, |
---|
| 919 | const char **namePtr, |
---|
| 920 | const char **valPtr, |
---|
| 921 | const char **nextTokPtr) |
---|
| 922 | { |
---|
| 923 | int c; |
---|
| 924 | char open; |
---|
| 925 | if (ptr == end) { |
---|
| 926 | *namePtr = 0; |
---|
| 927 | return 1; |
---|
| 928 | } |
---|
| 929 | if (!isSpace(toAscii(enc, ptr, end))) { |
---|
| 930 | *nextTokPtr = ptr; |
---|
| 931 | return 0; |
---|
| 932 | } |
---|
| 933 | do { |
---|
| 934 | ptr += enc->minBytesPerChar; |
---|
| 935 | } while (isSpace(toAscii(enc, ptr, end))); |
---|
| 936 | if (ptr == end) { |
---|
| 937 | *namePtr = 0; |
---|
| 938 | return 1; |
---|
| 939 | } |
---|
| 940 | *namePtr = ptr; |
---|
| 941 | for (;;) { |
---|
| 942 | c = toAscii(enc, ptr, end); |
---|
| 943 | if (c == -1) { |
---|
| 944 | *nextTokPtr = ptr; |
---|
| 945 | return 0; |
---|
| 946 | } |
---|
| 947 | if (c == '=') |
---|
| 948 | break; |
---|
| 949 | if (isSpace(c)) { |
---|
| 950 | do { |
---|
| 951 | ptr += enc->minBytesPerChar; |
---|
| 952 | } while (isSpace(c = toAscii(enc, ptr, end))); |
---|
| 953 | if (c != '=') { |
---|
| 954 | *nextTokPtr = ptr; |
---|
| 955 | return 0; |
---|
| 956 | } |
---|
| 957 | break; |
---|
| 958 | } |
---|
| 959 | ptr += enc->minBytesPerChar; |
---|
| 960 | } |
---|
| 961 | if (ptr == *namePtr) { |
---|
| 962 | *nextTokPtr = ptr; |
---|
| 963 | return 0; |
---|
| 964 | } |
---|
| 965 | ptr += enc->minBytesPerChar; |
---|
| 966 | c = toAscii(enc, ptr, end); |
---|
| 967 | while (isSpace(c)) { |
---|
| 968 | ptr += enc->minBytesPerChar; |
---|
| 969 | c = toAscii(enc, ptr, end); |
---|
| 970 | } |
---|
| 971 | if (c != '"' && c != '\'') { |
---|
| 972 | *nextTokPtr = ptr; |
---|
| 973 | return 0; |
---|
| 974 | } |
---|
| 975 | open = c; |
---|
| 976 | ptr += enc->minBytesPerChar; |
---|
| 977 | *valPtr = ptr; |
---|
| 978 | for (;; ptr += enc->minBytesPerChar) { |
---|
| 979 | c = toAscii(enc, ptr, end); |
---|
| 980 | if (c == open) |
---|
| 981 | break; |
---|
| 982 | if (!('a' <= c && c <= 'z') |
---|
| 983 | && !('A' <= c && c <= 'Z') |
---|
| 984 | && !('0' <= c && c <= '9') |
---|
| 985 | && c != '.' |
---|
| 986 | && c != '-' |
---|
| 987 | && c != '_') { |
---|
| 988 | *nextTokPtr = ptr; |
---|
| 989 | return 0; |
---|
| 990 | } |
---|
| 991 | } |
---|
| 992 | *nextTokPtr = ptr + enc->minBytesPerChar; |
---|
| 993 | return 1; |
---|
| 994 | } |
---|
| 995 | |
---|
| 996 | static |
---|
| 997 | int doParseXmlDecl(const ENCODING *(*encodingFinder)(const ENCODING *, |
---|
| 998 | const char *, |
---|
| 999 | const char *), |
---|
| 1000 | int isGeneralTextEntity, |
---|
| 1001 | const ENCODING *enc, |
---|
| 1002 | const char *ptr, |
---|
| 1003 | const char *end, |
---|
| 1004 | const char **badPtr, |
---|
| 1005 | const char **versionPtr, |
---|
| 1006 | const char **encodingName, |
---|
| 1007 | const ENCODING **encoding, |
---|
| 1008 | int *standalone) |
---|
| 1009 | { |
---|
| 1010 | const char *val = 0; |
---|
| 1011 | const char *name = 0; |
---|
| 1012 | ptr += 5 * enc->minBytesPerChar; |
---|
| 1013 | end -= 2 * enc->minBytesPerChar; |
---|
| 1014 | if (!parsePseudoAttribute(enc, ptr, end, &name, &val, &ptr) || !name) { |
---|
| 1015 | *badPtr = ptr; |
---|
| 1016 | return 0; |
---|
| 1017 | } |
---|
| 1018 | if (!XmlNameMatchesAscii(enc, name, "version")) { |
---|
| 1019 | if (!isGeneralTextEntity) { |
---|
| 1020 | *badPtr = name; |
---|
| 1021 | return 0; |
---|
| 1022 | } |
---|
| 1023 | } |
---|
| 1024 | else { |
---|
| 1025 | if (versionPtr) |
---|
| 1026 | *versionPtr = val; |
---|
| 1027 | if (!parsePseudoAttribute(enc, ptr, end, &name, &val, &ptr)) { |
---|
| 1028 | *badPtr = ptr; |
---|
| 1029 | return 0; |
---|
| 1030 | } |
---|
| 1031 | if (!name) { |
---|
| 1032 | if (isGeneralTextEntity) { |
---|
| 1033 | /* a TextDecl must have an EncodingDecl */ |
---|
| 1034 | *badPtr = ptr; |
---|
| 1035 | return 0; |
---|
| 1036 | } |
---|
| 1037 | return 1; |
---|
| 1038 | } |
---|
| 1039 | } |
---|
| 1040 | if (XmlNameMatchesAscii(enc, name, "encoding")) { |
---|
| 1041 | int c = toAscii(enc, val, end); |
---|
| 1042 | if (!('a' <= c && c <= 'z') && !('A' <= c && c <= 'Z')) { |
---|
| 1043 | *badPtr = val; |
---|
| 1044 | return 0; |
---|
| 1045 | } |
---|
| 1046 | if (encodingName) |
---|
| 1047 | *encodingName = val; |
---|
| 1048 | if (encoding) |
---|
| 1049 | *encoding = encodingFinder(enc, val, ptr - enc->minBytesPerChar); |
---|
| 1050 | if (!parsePseudoAttribute(enc, ptr, end, &name, &val, &ptr)) { |
---|
| 1051 | *badPtr = ptr; |
---|
| 1052 | return 0; |
---|
| 1053 | } |
---|
| 1054 | if (!name) |
---|
| 1055 | return 1; |
---|
| 1056 | } |
---|
| 1057 | if (!XmlNameMatchesAscii(enc, name, "standalone") || isGeneralTextEntity) { |
---|
| 1058 | *badPtr = name; |
---|
| 1059 | return 0; |
---|
| 1060 | } |
---|
| 1061 | if (XmlNameMatchesAscii(enc, val, "yes")) { |
---|
| 1062 | if (standalone) |
---|
| 1063 | *standalone = 1; |
---|
| 1064 | } |
---|
| 1065 | else if (XmlNameMatchesAscii(enc, val, "no")) { |
---|
| 1066 | if (standalone) |
---|
| 1067 | *standalone = 0; |
---|
| 1068 | } |
---|
| 1069 | else { |
---|
| 1070 | *badPtr = val; |
---|
| 1071 | return 0; |
---|
| 1072 | } |
---|
| 1073 | while (isSpace(toAscii(enc, ptr, end))) |
---|
| 1074 | ptr += enc->minBytesPerChar; |
---|
| 1075 | if (ptr != end) { |
---|
| 1076 | *badPtr = ptr; |
---|
| 1077 | return 0; |
---|
| 1078 | } |
---|
| 1079 | return 1; |
---|
| 1080 | } |
---|
| 1081 | |
---|
| 1082 | static |
---|
| 1083 | int checkCharRefNumber(int result) |
---|
| 1084 | { |
---|
| 1085 | switch (result >> 8) { |
---|
| 1086 | case 0xD8: case 0xD9: case 0xDA: case 0xDB: |
---|
| 1087 | case 0xDC: case 0xDD: case 0xDE: case 0xDF: |
---|
| 1088 | return -1; |
---|
| 1089 | case 0: |
---|
| 1090 | if (latin1_encoding.type[result] == BT_NONXML) |
---|
| 1091 | return -1; |
---|
| 1092 | break; |
---|
| 1093 | case 0xFF: |
---|
| 1094 | if (result == 0xFFFE || result == 0xFFFF) |
---|
| 1095 | return -1; |
---|
| 1096 | break; |
---|
| 1097 | } |
---|
| 1098 | return result; |
---|
| 1099 | } |
---|
| 1100 | |
---|
| 1101 | int XmlUtf8Encode(int c, char *buf) |
---|
| 1102 | { |
---|
| 1103 | enum { |
---|
| 1104 | /* minN is minimum legal resulting value for N byte sequence */ |
---|
| 1105 | min2 = 0x80, |
---|
| 1106 | min3 = 0x800, |
---|
| 1107 | min4 = 0x10000 |
---|
| 1108 | }; |
---|
| 1109 | |
---|
| 1110 | if (c < 0) |
---|
| 1111 | return 0; |
---|
| 1112 | if (c < min2) { |
---|
| 1113 | buf[0] = (c | UTF8_cval1); |
---|
| 1114 | return 1; |
---|
| 1115 | } |
---|
| 1116 | if (c < min3) { |
---|
| 1117 | buf[0] = ((c >> 6) | UTF8_cval2); |
---|
| 1118 | buf[1] = ((c & 0x3f) | 0x80); |
---|
| 1119 | return 2; |
---|
| 1120 | } |
---|
| 1121 | if (c < min4) { |
---|
| 1122 | buf[0] = ((c >> 12) | UTF8_cval3); |
---|
| 1123 | buf[1] = (((c >> 6) & 0x3f) | 0x80); |
---|
| 1124 | buf[2] = ((c & 0x3f) | 0x80); |
---|
| 1125 | return 3; |
---|
| 1126 | } |
---|
| 1127 | if (c < 0x110000) { |
---|
| 1128 | buf[0] = ((c >> 18) | UTF8_cval4); |
---|
| 1129 | buf[1] = (((c >> 12) & 0x3f) | 0x80); |
---|
| 1130 | buf[2] = (((c >> 6) & 0x3f) | 0x80); |
---|
| 1131 | buf[3] = ((c & 0x3f) | 0x80); |
---|
| 1132 | return 4; |
---|
| 1133 | } |
---|
| 1134 | return 0; |
---|
| 1135 | } |
---|
| 1136 | |
---|
| 1137 | int XmlUtf16Encode(int charNum, unsigned short *buf) |
---|
| 1138 | { |
---|
| 1139 | if (charNum < 0) |
---|
| 1140 | return 0; |
---|
| 1141 | if (charNum < 0x10000) { |
---|
| 1142 | buf[0] = charNum; |
---|
| 1143 | return 1; |
---|
| 1144 | } |
---|
| 1145 | if (charNum < 0x110000) { |
---|
| 1146 | charNum -= 0x10000; |
---|
| 1147 | buf[0] = (charNum >> 10) + 0xD800; |
---|
| 1148 | buf[1] = (charNum & 0x3FF) + 0xDC00; |
---|
| 1149 | return 2; |
---|
| 1150 | } |
---|
| 1151 | return 0; |
---|
| 1152 | } |
---|
| 1153 | |
---|
| 1154 | struct unknown_encoding { |
---|
| 1155 | struct normal_encoding normal; |
---|
| 1156 | int (*convert)(void *userData, const char *p); |
---|
| 1157 | void *userData; |
---|
| 1158 | unsigned short utf16[256]; |
---|
| 1159 | char utf8[256][4]; |
---|
| 1160 | }; |
---|
| 1161 | |
---|
| 1162 | int XmlSizeOfUnknownEncoding() |
---|
| 1163 | { |
---|
| 1164 | return sizeof(struct unknown_encoding); |
---|
| 1165 | } |
---|
| 1166 | |
---|
| 1167 | static |
---|
| 1168 | int unknown_isName(const ENCODING *enc, const char *p) |
---|
| 1169 | { |
---|
| 1170 | int c = ((const struct unknown_encoding *)enc) |
---|
| 1171 | ->convert(((const struct unknown_encoding *)enc)->userData, p); |
---|
| 1172 | if (c & ~0xFFFF) |
---|
| 1173 | return 0; |
---|
| 1174 | return UCS2_GET_NAMING(namePages, c >> 8, c & 0xFF); |
---|
| 1175 | } |
---|
| 1176 | |
---|
| 1177 | static |
---|
| 1178 | int unknown_isNmstrt(const ENCODING *enc, const char *p) |
---|
| 1179 | { |
---|
| 1180 | int c = ((const struct unknown_encoding *)enc) |
---|
| 1181 | ->convert(((const struct unknown_encoding *)enc)->userData, p); |
---|
| 1182 | if (c & ~0xFFFF) |
---|
| 1183 | return 0; |
---|
| 1184 | return UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xFF); |
---|
| 1185 | } |
---|
| 1186 | |
---|
| 1187 | static |
---|
| 1188 | int unknown_isInvalid(const ENCODING *enc, const char *p) |
---|
| 1189 | { |
---|
| 1190 | int c = ((const struct unknown_encoding *)enc) |
---|
| 1191 | ->convert(((const struct unknown_encoding *)enc)->userData, p); |
---|
| 1192 | return (c & ~0xFFFF) || checkCharRefNumber(c) < 0; |
---|
| 1193 | } |
---|
| 1194 | |
---|
| 1195 | static |
---|
| 1196 | void unknown_toUtf8(const ENCODING *enc, |
---|
| 1197 | const char **fromP, const char *fromLim, |
---|
| 1198 | char **toP, const char *toLim) |
---|
| 1199 | { |
---|
| 1200 | char buf[XML_UTF8_ENCODE_MAX]; |
---|
| 1201 | for (;;) { |
---|
| 1202 | const char *utf8; |
---|
| 1203 | int n; |
---|
| 1204 | if (*fromP == fromLim) |
---|
| 1205 | break; |
---|
| 1206 | utf8 = ((const struct unknown_encoding *)enc)->utf8[(unsigned char)**fromP]; |
---|
| 1207 | n = *utf8++; |
---|
| 1208 | if (n == 0) { |
---|
| 1209 | int c = ((const struct unknown_encoding *)enc) |
---|
| 1210 | ->convert(((const struct unknown_encoding *)enc)->userData, *fromP); |
---|
| 1211 | n = XmlUtf8Encode(c, buf); |
---|
| 1212 | if (n > toLim - *toP) |
---|
| 1213 | break; |
---|
| 1214 | utf8 = buf; |
---|
| 1215 | *fromP += ((const struct normal_encoding *)enc)->type[(unsigned char)**fromP] |
---|
| 1216 | - (BT_LEAD2 - 2); |
---|
| 1217 | } |
---|
| 1218 | else { |
---|
| 1219 | if (n > toLim - *toP) |
---|
| 1220 | break; |
---|
| 1221 | (*fromP)++; |
---|
| 1222 | } |
---|
| 1223 | do { |
---|
| 1224 | *(*toP)++ = *utf8++; |
---|
| 1225 | } while (--n != 0); |
---|
| 1226 | } |
---|
| 1227 | } |
---|
| 1228 | |
---|
| 1229 | static |
---|
| 1230 | void unknown_toUtf16(const ENCODING *enc, |
---|
| 1231 | const char **fromP, const char *fromLim, |
---|
| 1232 | unsigned short **toP, const unsigned short *toLim) |
---|
| 1233 | { |
---|
| 1234 | while (*fromP != fromLim && *toP != toLim) { |
---|
| 1235 | unsigned short c |
---|
| 1236 | = ((const struct unknown_encoding *)enc)->utf16[(unsigned char)**fromP]; |
---|
| 1237 | if (c == 0) { |
---|
| 1238 | c = (unsigned short)((const struct unknown_encoding *)enc) |
---|
| 1239 | ->convert(((const struct unknown_encoding *)enc)->userData, *fromP); |
---|
| 1240 | *fromP += ((const struct normal_encoding *)enc)->type[(unsigned char)**fromP] |
---|
| 1241 | - (BT_LEAD2 - 2); |
---|
| 1242 | } |
---|
| 1243 | else |
---|
| 1244 | (*fromP)++; |
---|
| 1245 | *(*toP)++ = c; |
---|
| 1246 | } |
---|
| 1247 | } |
---|
| 1248 | |
---|
| 1249 | ENCODING * |
---|
| 1250 | XmlInitUnknownEncoding(void *mem, |
---|
| 1251 | int *table, |
---|
| 1252 | int (*convert)(void *userData, const char *p), |
---|
| 1253 | void *userData) |
---|
| 1254 | { |
---|
| 1255 | int i; |
---|
| 1256 | struct unknown_encoding *e = mem; |
---|
| 1257 | for (i = 0; i < sizeof(struct normal_encoding); i++) |
---|
| 1258 | ((char *)mem)[i] = ((char *)&latin1_encoding)[i]; |
---|
| 1259 | for (i = 0; i < 128; i++) |
---|
| 1260 | if (latin1_encoding.type[i] != BT_OTHER |
---|
| 1261 | && latin1_encoding.type[i] != BT_NONXML |
---|
| 1262 | && table[i] != i) |
---|
| 1263 | return 0; |
---|
| 1264 | for (i = 0; i < 256; i++) { |
---|
| 1265 | int c = table[i]; |
---|
| 1266 | if (c == -1) { |
---|
| 1267 | e->normal.type[i] = BT_MALFORM; |
---|
| 1268 | /* This shouldn't really get used. */ |
---|
| 1269 | e->utf16[i] = 0xFFFF; |
---|
| 1270 | e->utf8[i][0] = 1; |
---|
| 1271 | e->utf8[i][1] = 0; |
---|
| 1272 | } |
---|
| 1273 | else if (c < 0) { |
---|
| 1274 | if (c < -4) |
---|
| 1275 | return 0; |
---|
| 1276 | e->normal.type[i] = BT_LEAD2 - (c + 2); |
---|
| 1277 | e->utf8[i][0] = 0; |
---|
| 1278 | e->utf16[i] = 0; |
---|
| 1279 | } |
---|
| 1280 | else if (c < 0x80) { |
---|
| 1281 | if (latin1_encoding.type[c] != BT_OTHER |
---|
| 1282 | && latin1_encoding.type[c] != BT_NONXML |
---|
| 1283 | && c != i) |
---|
| 1284 | return 0; |
---|
| 1285 | e->normal.type[i] = latin1_encoding.type[c]; |
---|
| 1286 | e->utf8[i][0] = 1; |
---|
| 1287 | e->utf8[i][1] = (char)c; |
---|
| 1288 | e->utf16[i] = c == 0 ? 0xFFFF : c; |
---|
| 1289 | } |
---|
| 1290 | else if (checkCharRefNumber(c) < 0) { |
---|
| 1291 | e->normal.type[i] = BT_NONXML; |
---|
| 1292 | /* This shouldn't really get used. */ |
---|
| 1293 | e->utf16[i] = 0xFFFF; |
---|
| 1294 | e->utf8[i][0] = 1; |
---|
| 1295 | e->utf8[i][1] = 0; |
---|
| 1296 | } |
---|
| 1297 | else { |
---|
| 1298 | if (c > 0xFFFF) |
---|
| 1299 | return 0; |
---|
| 1300 | if (UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xff)) |
---|
| 1301 | e->normal.type[i] = BT_NMSTRT; |
---|
| 1302 | else if (UCS2_GET_NAMING(namePages, c >> 8, c & 0xff)) |
---|
| 1303 | e->normal.type[i] = BT_NAME; |
---|
| 1304 | else |
---|
| 1305 | e->normal.type[i] = BT_OTHER; |
---|
| 1306 | e->utf8[i][0] = (char)XmlUtf8Encode(c, e->utf8[i] + 1); |
---|
| 1307 | e->utf16[i] = c; |
---|
| 1308 | } |
---|
| 1309 | } |
---|
| 1310 | e->userData = userData; |
---|
| 1311 | e->convert = convert; |
---|
| 1312 | if (convert) { |
---|
| 1313 | e->normal.isName2 = unknown_isName; |
---|
| 1314 | e->normal.isName3 = unknown_isName; |
---|
| 1315 | e->normal.isName4 = unknown_isName; |
---|
| 1316 | e->normal.isNmstrt2 = unknown_isNmstrt; |
---|
| 1317 | e->normal.isNmstrt3 = unknown_isNmstrt; |
---|
| 1318 | e->normal.isNmstrt4 = unknown_isNmstrt; |
---|
| 1319 | e->normal.isInvalid2 = unknown_isInvalid; |
---|
| 1320 | e->normal.isInvalid3 = unknown_isInvalid; |
---|
| 1321 | e->normal.isInvalid4 = unknown_isInvalid; |
---|
| 1322 | } |
---|
| 1323 | e->normal.enc.utf8Convert = unknown_toUtf8; |
---|
| 1324 | e->normal.enc.utf16Convert = unknown_toUtf16; |
---|
| 1325 | return &(e->normal.enc); |
---|
| 1326 | } |
---|
| 1327 | |
---|
| 1328 | /* If this enumeration is changed, getEncodingIndex and encodings |
---|
| 1329 | must also be changed. */ |
---|
| 1330 | enum { |
---|
| 1331 | UNKNOWN_ENC = -1, |
---|
| 1332 | ISO_8859_1_ENC = 0, |
---|
| 1333 | US_ASCII_ENC, |
---|
| 1334 | UTF_8_ENC, |
---|
| 1335 | UTF_16_ENC, |
---|
| 1336 | UTF_16BE_ENC, |
---|
| 1337 | UTF_16LE_ENC, |
---|
| 1338 | /* must match encodingNames up to here */ |
---|
| 1339 | NO_ENC |
---|
| 1340 | }; |
---|
| 1341 | |
---|
| 1342 | static |
---|
| 1343 | int getEncodingIndex(const char *name) |
---|
| 1344 | { |
---|
| 1345 | static const char *encodingNames[] = { |
---|
| 1346 | "ISO-8859-1", |
---|
| 1347 | "US-ASCII", |
---|
| 1348 | "UTF-8", |
---|
| 1349 | "UTF-16", |
---|
| 1350 | "UTF-16BE" |
---|
| 1351 | "UTF-16LE", |
---|
| 1352 | }; |
---|
| 1353 | int i; |
---|
| 1354 | if (name == 0) |
---|
| 1355 | return NO_ENC; |
---|
| 1356 | for (i = 0; i < sizeof(encodingNames)/sizeof(encodingNames[0]); i++) |
---|
| 1357 | if (streqci(name, encodingNames[i])) |
---|
| 1358 | return i; |
---|
| 1359 | return UNKNOWN_ENC; |
---|
| 1360 | } |
---|
| 1361 | |
---|
| 1362 | /* For binary compatibility, we store the index of the encoding specified |
---|
| 1363 | at initialization in the isUtf16 member. */ |
---|
| 1364 | |
---|
| 1365 | #define INIT_ENC_INDEX(enc) ((enc)->initEnc.isUtf16) |
---|
| 1366 | |
---|
| 1367 | /* This is what detects the encoding. |
---|
| 1368 | encodingTable maps from encoding indices to encodings; |
---|
| 1369 | INIT_ENC_INDEX(enc) is the index of the external (protocol) specified encoding; |
---|
| 1370 | state is XML_CONTENT_STATE if we're parsing an external text entity, |
---|
| 1371 | and XML_PROLOG_STATE otherwise. |
---|
| 1372 | */ |
---|
| 1373 | |
---|
| 1374 | |
---|
| 1375 | static |
---|
| 1376 | int initScan(const ENCODING **encodingTable, |
---|
| 1377 | const INIT_ENCODING *enc, |
---|
| 1378 | int state, |
---|
| 1379 | const char *ptr, |
---|
| 1380 | const char *end, |
---|
| 1381 | const char **nextTokPtr) |
---|
| 1382 | { |
---|
| 1383 | const ENCODING **encPtr; |
---|
| 1384 | |
---|
| 1385 | if (ptr == end) |
---|
| 1386 | return XML_TOK_NONE; |
---|
| 1387 | encPtr = enc->encPtr; |
---|
| 1388 | if (ptr + 1 == end) { |
---|
| 1389 | /* only a single byte available for auto-detection */ |
---|
| 1390 | /* a well-formed document entity must have more than one byte */ |
---|
| 1391 | if (state != XML_CONTENT_STATE) |
---|
| 1392 | return XML_TOK_PARTIAL; |
---|
| 1393 | /* so we're parsing an external text entity... */ |
---|
| 1394 | /* if UTF-16 was externally specified, then we need at least 2 bytes */ |
---|
| 1395 | switch (INIT_ENC_INDEX(enc)) { |
---|
| 1396 | case UTF_16_ENC: |
---|
| 1397 | case UTF_16LE_ENC: |
---|
| 1398 | case UTF_16BE_ENC: |
---|
| 1399 | return XML_TOK_PARTIAL; |
---|
| 1400 | } |
---|
| 1401 | switch ((unsigned char)*ptr) { |
---|
| 1402 | case 0xFE: |
---|
| 1403 | case 0xFF: |
---|
| 1404 | case 0xEF: /* possibly first byte of UTF-8 BOM */ |
---|
| 1405 | if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC |
---|
| 1406 | && state == XML_CONTENT_STATE) |
---|
| 1407 | break; |
---|
| 1408 | /* fall through */ |
---|
| 1409 | case 0x00: |
---|
| 1410 | case 0x3C: |
---|
| 1411 | return XML_TOK_PARTIAL; |
---|
| 1412 | } |
---|
| 1413 | } |
---|
| 1414 | else { |
---|
| 1415 | switch (((unsigned char)ptr[0] << 8) | (unsigned char)ptr[1]) { |
---|
| 1416 | case 0xFEFF: |
---|
| 1417 | if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC |
---|
| 1418 | && state == XML_CONTENT_STATE) |
---|
| 1419 | break; |
---|
| 1420 | *nextTokPtr = ptr + 2; |
---|
| 1421 | *encPtr = encodingTable[UTF_16BE_ENC]; |
---|
| 1422 | return XML_TOK_BOM; |
---|
| 1423 | /* 00 3C is handled in the default case */ |
---|
| 1424 | case 0x3C00: |
---|
| 1425 | if ((INIT_ENC_INDEX(enc) == UTF_16BE_ENC |
---|
| 1426 | || INIT_ENC_INDEX(enc) == UTF_16_ENC) |
---|
| 1427 | && state == XML_CONTENT_STATE) |
---|
| 1428 | break; |
---|
| 1429 | *encPtr = encodingTable[UTF_16LE_ENC]; |
---|
| 1430 | return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
---|
| 1431 | case 0xFFFE: |
---|
| 1432 | if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC |
---|
| 1433 | && state == XML_CONTENT_STATE) |
---|
| 1434 | break; |
---|
| 1435 | *nextTokPtr = ptr + 2; |
---|
| 1436 | *encPtr = encodingTable[UTF_16LE_ENC]; |
---|
| 1437 | return XML_TOK_BOM; |
---|
| 1438 | case 0xEFBB: |
---|
| 1439 | /* Maybe a UTF-8 BOM (EF BB BF) */ |
---|
| 1440 | /* If there's an explicitly specified (external) encoding |
---|
| 1441 | of ISO-8859-1 or some flavour of UTF-16 |
---|
| 1442 | and this is an external text entity, |
---|
| 1443 | don't look for the BOM, |
---|
| 1444 | because it might be a legal data. */ |
---|
| 1445 | if (state == XML_CONTENT_STATE) { |
---|
| 1446 | int e = INIT_ENC_INDEX(enc); |
---|
| 1447 | if (e == ISO_8859_1_ENC || e == UTF_16BE_ENC || e == UTF_16LE_ENC || e == UTF_16_ENC) |
---|
| 1448 | break; |
---|
| 1449 | } |
---|
| 1450 | if (ptr + 2 == end) |
---|
| 1451 | return XML_TOK_PARTIAL; |
---|
| 1452 | if ((unsigned char)ptr[2] == 0xBF) { |
---|
| 1453 | *encPtr = encodingTable[UTF_8_ENC]; |
---|
| 1454 | return XML_TOK_BOM; |
---|
| 1455 | } |
---|
| 1456 | break; |
---|
| 1457 | default: |
---|
| 1458 | if (ptr[0] == '\0') { |
---|
| 1459 | /* 0 isn't a legal data character. Furthermore a document entity can only |
---|
| 1460 | start with ASCII characters. So the only way this can fail to be big-endian |
---|
| 1461 | UTF-16 if it it's an external parsed general entity that's labelled as |
---|
| 1462 | UTF-16LE. */ |
---|
| 1463 | if (state == XML_CONTENT_STATE && INIT_ENC_INDEX(enc) == UTF_16LE_ENC) |
---|
| 1464 | break; |
---|
| 1465 | *encPtr = encodingTable[UTF_16BE_ENC]; |
---|
| 1466 | return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
---|
| 1467 | } |
---|
| 1468 | else if (ptr[1] == '\0') { |
---|
| 1469 | /* We could recover here in the case: |
---|
| 1470 | - parsing an external entity |
---|
| 1471 | - second byte is 0 |
---|
| 1472 | - no externally specified encoding |
---|
| 1473 | - no encoding declaration |
---|
| 1474 | by assuming UTF-16LE. But we don't, because this would mean when |
---|
| 1475 | presented just with a single byte, we couldn't reliably determine |
---|
| 1476 | whether we needed further bytes. */ |
---|
| 1477 | if (state == XML_CONTENT_STATE) |
---|
| 1478 | break; |
---|
| 1479 | *encPtr = encodingTable[UTF_16LE_ENC]; |
---|
| 1480 | return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
---|
| 1481 | } |
---|
| 1482 | break; |
---|
| 1483 | } |
---|
| 1484 | } |
---|
| 1485 | *encPtr = encodingTable[(int)INIT_ENC_INDEX(enc)]; |
---|
| 1486 | return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
---|
| 1487 | } |
---|
| 1488 | |
---|
| 1489 | |
---|
| 1490 | #define NS(x) x |
---|
| 1491 | #define ns(x) x |
---|
| 1492 | #include "xmltok_ns.c" |
---|
| 1493 | #undef NS |
---|
| 1494 | #undef ns |
---|
| 1495 | |
---|
| 1496 | #ifdef XML_NS |
---|
| 1497 | |
---|
| 1498 | #define NS(x) x ## NS |
---|
| 1499 | #define ns(x) x ## _ns |
---|
| 1500 | |
---|
| 1501 | #include "xmltok_ns.c" |
---|
| 1502 | |
---|
| 1503 | #undef NS |
---|
| 1504 | #undef ns |
---|
| 1505 | |
---|
| 1506 | ENCODING * |
---|
| 1507 | XmlInitUnknownEncodingNS(void *mem, |
---|
| 1508 | int *table, |
---|
| 1509 | int (*convert)(void *userData, const char *p), |
---|
| 1510 | void *userData) |
---|
| 1511 | { |
---|
| 1512 | ENCODING *enc = XmlInitUnknownEncoding(mem, table, convert, userData); |
---|
| 1513 | if (enc) |
---|
| 1514 | ((struct normal_encoding *)enc)->type[':'] = BT_COLON; |
---|
| 1515 | return enc; |
---|
| 1516 | } |
---|
| 1517 | |
---|
| 1518 | #endif /* XML_NS */ |
---|