Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 1 | /* |
| 2 | __ __ _ |
| 3 | ___\ \/ /_ __ __ _| |_ |
| 4 | / _ \\ /| '_ \ / _` | __| |
| 5 | | __// \| |_) | (_| | |_ |
| 6 | \___/_/\_\ .__/ \__,_|\__| |
| 7 | |_| XML parser |
| 8 | |
| 9 | Copyright (c) 1997-2000 Thai Open Source Software Center Ltd |
| 10 | Copyright (c) 2000-2017 Expat development team |
| 11 | Licensed under the MIT license: |
| 12 | |
| 13 | Permission is hereby granted, free of charge, to any person obtaining |
| 14 | a copy of this software and associated documentation files (the |
| 15 | "Software"), to deal in the Software without restriction, including |
| 16 | without limitation the rights to use, copy, modify, merge, publish, |
| 17 | distribute, sublicense, and/or sell copies of the Software, and to permit |
| 18 | persons to whom the Software is furnished to do so, subject to the |
| 19 | following conditions: |
| 20 | |
| 21 | The above copyright notice and this permission notice shall be included |
| 22 | in all copies or substantial portions of the Software. |
| 23 | |
| 24 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 25 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 26 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN |
| 27 | NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
| 28 | DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| 29 | OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| 30 | USE OR OTHER DEALINGS IN THE SOFTWARE. |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 31 | */ |
| 32 | |
| 33 | #include <stddef.h> |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 34 | #include <string.h> /* memcpy */ |
Elliott Hughes | f648a29 | 2021-04-01 15:10:13 -0700 | [diff] [blame^] | 35 | #include <stdbool.h> |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 36 | |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 37 | #ifdef _WIN32 |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 38 | # include "winconfig.h" |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 39 | #else |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 40 | # ifdef HAVE_EXPAT_CONFIG_H |
| 41 | # include <expat_config.h> |
| 42 | # endif |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 43 | #endif /* ndef _WIN32 */ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 44 | |
| 45 | #include "expat_external.h" |
| 46 | #include "internal.h" |
| 47 | #include "xmltok.h" |
| 48 | #include "nametab.h" |
| 49 | |
| 50 | #ifdef XML_DTD |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 51 | # define IGNORE_SECTION_TOK_VTABLE , PREFIX(ignoreSectionTok) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 52 | #else |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 53 | # define IGNORE_SECTION_TOK_VTABLE /* as nothing */ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 54 | #endif |
| 55 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 56 | #define VTABLE1 \ |
| 57 | {PREFIX(prologTok), PREFIX(contentTok), \ |
| 58 | PREFIX(cdataSectionTok) IGNORE_SECTION_TOK_VTABLE}, \ |
| 59 | {PREFIX(attributeValueTok), PREFIX(entityValueTok)}, \ |
| 60 | PREFIX(nameMatchesAscii), PREFIX(nameLength), PREFIX(skipS), \ |
| 61 | PREFIX(getAtts), PREFIX(charRefNumber), PREFIX(predefinedEntityName), \ |
| 62 | PREFIX(updatePosition), PREFIX(isPublicId) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 63 | |
| 64 | #define VTABLE VTABLE1, PREFIX(toUtf8), PREFIX(toUtf16) |
| 65 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 66 | #define UCS2_GET_NAMING(pages, hi, lo) \ |
| 67 | (namingBitmap[(pages[hi] << 3) + ((lo) >> 5)] & (1u << ((lo)&0x1F))) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 68 | |
| 69 | /* A 2 byte UTF-8 representation splits the characters 11 bits between |
| 70 | the bottom 5 and 6 bits of the bytes. We need 8 bits to index into |
| 71 | pages, 3 bits to add to that index and 5 bits to generate the mask. |
| 72 | */ |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 73 | #define UTF8_GET_NAMING2(pages, byte) \ |
| 74 | (namingBitmap[((pages)[(((byte)[0]) >> 2) & 7] << 3) \ |
| 75 | + ((((byte)[0]) & 3) << 1) + ((((byte)[1]) >> 5) & 1)] \ |
| 76 | & (1u << (((byte)[1]) & 0x1F))) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 77 | |
| 78 | /* A 3 byte UTF-8 representation splits the characters 16 bits between |
| 79 | the bottom 4, 6 and 6 bits of the bytes. We need 8 bits to index |
| 80 | into pages, 3 bits to add to that index and 5 bits to generate the |
| 81 | mask. |
| 82 | */ |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 83 | #define UTF8_GET_NAMING3(pages, byte) \ |
| 84 | (namingBitmap \ |
| 85 | [((pages)[((((byte)[0]) & 0xF) << 4) + ((((byte)[1]) >> 2) & 0xF)] \ |
| 86 | << 3) \ |
| 87 | + ((((byte)[1]) & 3) << 1) + ((((byte)[2]) >> 5) & 1)] \ |
| 88 | & (1u << (((byte)[2]) & 0x1F))) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 89 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 90 | #define UTF8_GET_NAMING(pages, p, n) \ |
| 91 | ((n) == 2 \ |
| 92 | ? UTF8_GET_NAMING2(pages, (const unsigned char *)(p)) \ |
| 93 | : ((n) == 3 ? UTF8_GET_NAMING3(pages, (const unsigned char *)(p)) : 0)) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 94 | |
| 95 | /* Detection of invalid UTF-8 sequences is based on Table 3.1B |
| 96 | of Unicode 3.2: http://www.unicode.org/unicode/reports/tr28/ |
| 97 | with the additional restriction of not allowing the Unicode |
| 98 | code points 0xFFFF and 0xFFFE (sequences EF,BF,BF and EF,BF,BE). |
| 99 | Implementation details: |
| 100 | (A & 0x80) == 0 means A < 0x80 |
| 101 | and |
| 102 | (A & 0xC0) == 0xC0 means A > 0xBF |
| 103 | */ |
| 104 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 105 | #define UTF8_INVALID2(p) \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 106 | ((*p) < 0xC2 || ((p)[1] & 0x80) == 0 || ((p)[1] & 0xC0) == 0xC0) |
| 107 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 108 | #define UTF8_INVALID3(p) \ |
| 109 | (((p)[2] & 0x80) == 0 \ |
| 110 | || ((*p) == 0xEF && (p)[1] == 0xBF ? (p)[2] > 0xBD \ |
| 111 | : ((p)[2] & 0xC0) == 0xC0) \ |
| 112 | || ((*p) == 0xE0 \ |
| 113 | ? (p)[1] < 0xA0 || ((p)[1] & 0xC0) == 0xC0 \ |
| 114 | : ((p)[1] & 0x80) == 0 \ |
| 115 | || ((*p) == 0xED ? (p)[1] > 0x9F : ((p)[1] & 0xC0) == 0xC0))) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 116 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 117 | #define UTF8_INVALID4(p) \ |
| 118 | (((p)[3] & 0x80) == 0 || ((p)[3] & 0xC0) == 0xC0 || ((p)[2] & 0x80) == 0 \ |
| 119 | || ((p)[2] & 0xC0) == 0xC0 \ |
| 120 | || ((*p) == 0xF0 \ |
| 121 | ? (p)[1] < 0x90 || ((p)[1] & 0xC0) == 0xC0 \ |
| 122 | : ((p)[1] & 0x80) == 0 \ |
| 123 | || ((*p) == 0xF4 ? (p)[1] > 0x8F : ((p)[1] & 0xC0) == 0xC0))) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 124 | |
| 125 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 126 | isNever(const ENCODING *enc, const char *p) { |
| 127 | UNUSED_P(enc); |
| 128 | UNUSED_P(p); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 129 | return 0; |
| 130 | } |
| 131 | |
| 132 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 133 | utf8_isName2(const ENCODING *enc, const char *p) { |
| 134 | UNUSED_P(enc); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 135 | return UTF8_GET_NAMING2(namePages, (const unsigned char *)p); |
| 136 | } |
| 137 | |
| 138 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 139 | utf8_isName3(const ENCODING *enc, const char *p) { |
| 140 | UNUSED_P(enc); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 141 | return UTF8_GET_NAMING3(namePages, (const unsigned char *)p); |
| 142 | } |
| 143 | |
| 144 | #define utf8_isName4 isNever |
| 145 | |
| 146 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 147 | utf8_isNmstrt2(const ENCODING *enc, const char *p) { |
| 148 | UNUSED_P(enc); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 149 | return UTF8_GET_NAMING2(nmstrtPages, (const unsigned char *)p); |
| 150 | } |
| 151 | |
| 152 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 153 | utf8_isNmstrt3(const ENCODING *enc, const char *p) { |
| 154 | UNUSED_P(enc); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 155 | return UTF8_GET_NAMING3(nmstrtPages, (const unsigned char *)p); |
| 156 | } |
| 157 | |
| 158 | #define utf8_isNmstrt4 isNever |
| 159 | |
| 160 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 161 | utf8_isInvalid2(const ENCODING *enc, const char *p) { |
| 162 | UNUSED_P(enc); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 163 | return UTF8_INVALID2((const unsigned char *)p); |
| 164 | } |
| 165 | |
| 166 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 167 | utf8_isInvalid3(const ENCODING *enc, const char *p) { |
| 168 | UNUSED_P(enc); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 169 | return UTF8_INVALID3((const unsigned char *)p); |
| 170 | } |
| 171 | |
| 172 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 173 | utf8_isInvalid4(const ENCODING *enc, const char *p) { |
| 174 | UNUSED_P(enc); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 175 | return UTF8_INVALID4((const unsigned char *)p); |
| 176 | } |
| 177 | |
| 178 | struct normal_encoding { |
| 179 | ENCODING enc; |
| 180 | unsigned char type[256]; |
| 181 | #ifdef XML_MIN_SIZE |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 182 | int(PTRFASTCALL *byteType)(const ENCODING *, const char *); |
| 183 | int(PTRFASTCALL *isNameMin)(const ENCODING *, const char *); |
| 184 | int(PTRFASTCALL *isNmstrtMin)(const ENCODING *, const char *); |
| 185 | int(PTRFASTCALL *byteToAscii)(const ENCODING *, const char *); |
| 186 | int(PTRCALL *charMatches)(const ENCODING *, const char *, int); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 187 | #endif /* XML_MIN_SIZE */ |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 188 | int(PTRFASTCALL *isName2)(const ENCODING *, const char *); |
| 189 | int(PTRFASTCALL *isName3)(const ENCODING *, const char *); |
| 190 | int(PTRFASTCALL *isName4)(const ENCODING *, const char *); |
| 191 | int(PTRFASTCALL *isNmstrt2)(const ENCODING *, const char *); |
| 192 | int(PTRFASTCALL *isNmstrt3)(const ENCODING *, const char *); |
| 193 | int(PTRFASTCALL *isNmstrt4)(const ENCODING *, const char *); |
| 194 | int(PTRFASTCALL *isInvalid2)(const ENCODING *, const char *); |
| 195 | int(PTRFASTCALL *isInvalid3)(const ENCODING *, const char *); |
| 196 | int(PTRFASTCALL *isInvalid4)(const ENCODING *, const char *); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 197 | }; |
| 198 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 199 | #define AS_NORMAL_ENCODING(enc) ((const struct normal_encoding *)(enc)) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 200 | |
| 201 | #ifdef XML_MIN_SIZE |
| 202 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 203 | # define STANDARD_VTABLE(E) \ |
| 204 | E##byteType, E##isNameMin, E##isNmstrtMin, E##byteToAscii, E##charMatches, |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 205 | |
| 206 | #else |
| 207 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 208 | # define STANDARD_VTABLE(E) /* as nothing */ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 209 | |
| 210 | #endif |
| 211 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 212 | #define NORMAL_VTABLE(E) \ |
| 213 | E##isName2, E##isName3, E##isName4, E##isNmstrt2, E##isNmstrt3, \ |
| 214 | E##isNmstrt4, E##isInvalid2, E##isInvalid3, E##isInvalid4 |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 215 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 216 | #define NULL_VTABLE \ |
| 217 | /* isName2 */ NULL, /* isName3 */ NULL, /* isName4 */ NULL, \ |
| 218 | /* isNmstrt2 */ NULL, /* isNmstrt3 */ NULL, /* isNmstrt4 */ NULL, \ |
| 219 | /* isInvalid2 */ NULL, /* isInvalid3 */ NULL, /* isInvalid4 */ NULL |
Paul Duffin | ba34a0c | 2017-02-27 14:40:16 +0000 | [diff] [blame] | 220 | |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 221 | static int FASTCALL checkCharRefNumber(int); |
| 222 | |
| 223 | #include "xmltok_impl.h" |
| 224 | #include "ascii.h" |
| 225 | |
| 226 | #ifdef XML_MIN_SIZE |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 227 | # define sb_isNameMin isNever |
| 228 | # define sb_isNmstrtMin isNever |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 229 | #endif |
| 230 | |
| 231 | #ifdef XML_MIN_SIZE |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 232 | # define MINBPC(enc) ((enc)->minBytesPerChar) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 233 | #else |
| 234 | /* minimum bytes per character */ |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 235 | # define MINBPC(enc) 1 |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 236 | #endif |
| 237 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 238 | #define SB_BYTE_TYPE(enc, p) \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 239 | (((struct normal_encoding *)(enc))->type[(unsigned char)*(p)]) |
| 240 | |
| 241 | #ifdef XML_MIN_SIZE |
| 242 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 243 | sb_byteType(const ENCODING *enc, const char *p) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 244 | return SB_BYTE_TYPE(enc, p); |
| 245 | } |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 246 | # define BYTE_TYPE(enc, p) (AS_NORMAL_ENCODING(enc)->byteType(enc, p)) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 247 | #else |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 248 | # define BYTE_TYPE(enc, p) SB_BYTE_TYPE(enc, p) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 249 | #endif |
| 250 | |
| 251 | #ifdef XML_MIN_SIZE |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 252 | # define BYTE_TO_ASCII(enc, p) (AS_NORMAL_ENCODING(enc)->byteToAscii(enc, p)) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 253 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 254 | sb_byteToAscii(const ENCODING *enc, const char *p) { |
| 255 | UNUSED_P(enc); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 256 | return *p; |
| 257 | } |
| 258 | #else |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 259 | # define BYTE_TO_ASCII(enc, p) (*(p)) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 260 | #endif |
| 261 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 262 | #define IS_NAME_CHAR(enc, p, n) (AS_NORMAL_ENCODING(enc)->isName##n(enc, p)) |
| 263 | #define IS_NMSTRT_CHAR(enc, p, n) (AS_NORMAL_ENCODING(enc)->isNmstrt##n(enc, p)) |
| 264 | #define IS_INVALID_CHAR(enc, p, n) \ |
| 265 | (AS_NORMAL_ENCODING(enc)->isInvalid##n(enc, p)) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 266 | |
| 267 | #ifdef XML_MIN_SIZE |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 268 | # define IS_NAME_CHAR_MINBPC(enc, p) \ |
| 269 | (AS_NORMAL_ENCODING(enc)->isNameMin(enc, p)) |
| 270 | # define IS_NMSTRT_CHAR_MINBPC(enc, p) \ |
| 271 | (AS_NORMAL_ENCODING(enc)->isNmstrtMin(enc, p)) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 272 | #else |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 273 | # define IS_NAME_CHAR_MINBPC(enc, p) (0) |
| 274 | # define IS_NMSTRT_CHAR_MINBPC(enc, p) (0) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 275 | #endif |
| 276 | |
| 277 | #ifdef XML_MIN_SIZE |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 278 | # define CHAR_MATCHES(enc, p, c) \ |
| 279 | (AS_NORMAL_ENCODING(enc)->charMatches(enc, p, c)) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 280 | static int PTRCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 281 | sb_charMatches(const ENCODING *enc, const char *p, int c) { |
| 282 | UNUSED_P(enc); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 283 | return *p == c; |
| 284 | } |
| 285 | #else |
| 286 | /* c is an ASCII character */ |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 287 | # define CHAR_MATCHES(enc, p, c) (*(p) == c) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 288 | #endif |
| 289 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 290 | #define PREFIX(ident) normal_##ident |
Elliott Hughes | d07d5a7 | 2009-09-25 16:04:37 -0700 | [diff] [blame] | 291 | #define XML_TOK_IMPL_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 292 | #include "xmltok_impl.c" |
Elliott Hughes | d07d5a7 | 2009-09-25 16:04:37 -0700 | [diff] [blame] | 293 | #undef XML_TOK_IMPL_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 294 | |
| 295 | #undef MINBPC |
| 296 | #undef BYTE_TYPE |
| 297 | #undef BYTE_TO_ASCII |
| 298 | #undef CHAR_MATCHES |
| 299 | #undef IS_NAME_CHAR |
| 300 | #undef IS_NAME_CHAR_MINBPC |
| 301 | #undef IS_NMSTRT_CHAR |
| 302 | #undef IS_NMSTRT_CHAR_MINBPC |
| 303 | #undef IS_INVALID_CHAR |
| 304 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 305 | enum { /* UTF8_cvalN is value of masked first byte of N byte sequence */ |
| 306 | UTF8_cval1 = 0x00, |
| 307 | UTF8_cval2 = 0xc0, |
| 308 | UTF8_cval3 = 0xe0, |
| 309 | UTF8_cval4 = 0xf0 |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 310 | }; |
| 311 | |
Paul Duffin | ba34a0c | 2017-02-27 14:40:16 +0000 | [diff] [blame] | 312 | void |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 313 | _INTERNAL_trim_to_complete_utf8_characters(const char *from, |
| 314 | const char **fromLimRef) { |
| 315 | const char *fromLim = *fromLimRef; |
Paul Duffin | ba34a0c | 2017-02-27 14:40:16 +0000 | [diff] [blame] | 316 | size_t walked = 0; |
| 317 | for (; fromLim > from; fromLim--, walked++) { |
| 318 | const unsigned char prev = (unsigned char)fromLim[-1]; |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 319 | if ((prev & 0xf8u) |
| 320 | == 0xf0u) { /* 4-byte character, lead by 0b11110xxx byte */ |
Paul Duffin | ba34a0c | 2017-02-27 14:40:16 +0000 | [diff] [blame] | 321 | if (walked + 1 >= 4) { |
| 322 | fromLim += 4 - 1; |
| 323 | break; |
| 324 | } else { |
| 325 | walked = 0; |
| 326 | } |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 327 | } else if ((prev & 0xf0u) |
| 328 | == 0xe0u) { /* 3-byte character, lead by 0b1110xxxx byte */ |
Paul Duffin | ba34a0c | 2017-02-27 14:40:16 +0000 | [diff] [blame] | 329 | if (walked + 1 >= 3) { |
| 330 | fromLim += 3 - 1; |
| 331 | break; |
| 332 | } else { |
| 333 | walked = 0; |
| 334 | } |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 335 | } else if ((prev & 0xe0u) |
| 336 | == 0xc0u) { /* 2-byte character, lead by 0b110xxxxx byte */ |
Paul Duffin | ba34a0c | 2017-02-27 14:40:16 +0000 | [diff] [blame] | 337 | if (walked + 1 >= 2) { |
| 338 | fromLim += 2 - 1; |
| 339 | break; |
| 340 | } else { |
| 341 | walked = 0; |
| 342 | } |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 343 | } else if ((prev & 0x80u) |
| 344 | == 0x00u) { /* 1-byte character, matching 0b0xxxxxxx */ |
Paul Duffin | ba34a0c | 2017-02-27 14:40:16 +0000 | [diff] [blame] | 345 | break; |
| 346 | } |
| 347 | } |
| 348 | *fromLimRef = fromLim; |
| 349 | } |
| 350 | |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 351 | static enum XML_Convert_Result PTRCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 352 | utf8_toUtf8(const ENCODING *enc, const char **fromP, const char *fromLim, |
| 353 | char **toP, const char *toLim) { |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 354 | bool input_incomplete = false; |
| 355 | bool output_exhausted = false; |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 356 | |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 357 | /* Avoid copying partial characters (due to limited space). */ |
| 358 | const ptrdiff_t bytesAvailable = fromLim - *fromP; |
| 359 | const ptrdiff_t bytesStorable = toLim - *toP; |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 360 | UNUSED_P(enc); |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 361 | if (bytesAvailable > bytesStorable) { |
| 362 | fromLim = *fromP + bytesStorable; |
| 363 | output_exhausted = true; |
| 364 | } |
| 365 | |
| 366 | /* Avoid copying partial characters (from incomplete input). */ |
| 367 | { |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 368 | const char *const fromLimBefore = fromLim; |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 369 | _INTERNAL_trim_to_complete_utf8_characters(*fromP, &fromLim); |
| 370 | if (fromLim < fromLimBefore) { |
| 371 | input_incomplete = true; |
| 372 | } |
| 373 | } |
| 374 | |
| 375 | { |
| 376 | const ptrdiff_t bytesToCopy = fromLim - *fromP; |
| 377 | memcpy(*toP, *fromP, bytesToCopy); |
| 378 | *fromP += bytesToCopy; |
| 379 | *toP += bytesToCopy; |
| 380 | } |
| 381 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 382 | if (output_exhausted) /* needs to go first */ |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 383 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 384 | else if (input_incomplete) |
| 385 | return XML_CONVERT_INPUT_INCOMPLETE; |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 386 | else |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 387 | return XML_CONVERT_COMPLETED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 388 | } |
| 389 | |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 390 | static enum XML_Convert_Result PTRCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 391 | utf8_toUtf16(const ENCODING *enc, const char **fromP, const char *fromLim, |
| 392 | unsigned short **toP, const unsigned short *toLim) { |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 393 | enum XML_Convert_Result res = XML_CONVERT_COMPLETED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 394 | unsigned short *to = *toP; |
| 395 | const char *from = *fromP; |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 396 | while (from < fromLim && to < toLim) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 397 | switch (((struct normal_encoding *)enc)->type[(unsigned char)*from]) { |
| 398 | case BT_LEAD2: |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 399 | if (fromLim - from < 2) { |
| 400 | res = XML_CONVERT_INPUT_INCOMPLETE; |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 401 | goto after; |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 402 | } |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 403 | *to++ = (unsigned short)(((from[0] & 0x1f) << 6) | (from[1] & 0x3f)); |
| 404 | from += 2; |
| 405 | break; |
| 406 | case BT_LEAD3: |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 407 | if (fromLim - from < 3) { |
| 408 | res = XML_CONVERT_INPUT_INCOMPLETE; |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 409 | goto after; |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 410 | } |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 411 | *to++ = (unsigned short)(((from[0] & 0xf) << 12) | ((from[1] & 0x3f) << 6) |
| 412 | | (from[2] & 0x3f)); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 413 | from += 3; |
| 414 | break; |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 415 | case BT_LEAD4: { |
| 416 | unsigned long n; |
| 417 | if (toLim - to < 2) { |
| 418 | res = XML_CONVERT_OUTPUT_EXHAUSTED; |
| 419 | goto after; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 420 | } |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 421 | if (fromLim - from < 4) { |
| 422 | res = XML_CONVERT_INPUT_INCOMPLETE; |
| 423 | goto after; |
| 424 | } |
| 425 | n = ((from[0] & 0x7) << 18) | ((from[1] & 0x3f) << 12) |
| 426 | | ((from[2] & 0x3f) << 6) | (from[3] & 0x3f); |
| 427 | n -= 0x10000; |
| 428 | to[0] = (unsigned short)((n >> 10) | 0xD800); |
| 429 | to[1] = (unsigned short)((n & 0x3FF) | 0xDC00); |
| 430 | to += 2; |
| 431 | from += 4; |
| 432 | } break; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 433 | default: |
| 434 | *to++ = *from++; |
| 435 | break; |
| 436 | } |
| 437 | } |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 438 | if (from < fromLim) |
| 439 | res = XML_CONVERT_OUTPUT_EXHAUSTED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 440 | after: |
| 441 | *fromP = from; |
| 442 | *toP = to; |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 443 | return res; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 444 | } |
| 445 | |
| 446 | #ifdef XML_NS |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 447 | static const struct normal_encoding utf8_encoding_ns |
| 448 | = {{VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0}, |
| 449 | { |
| 450 | # include "asciitab.h" |
| 451 | # include "utf8tab.h" |
| 452 | }, |
| 453 | STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_)}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 454 | #endif |
| 455 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 456 | static const struct normal_encoding utf8_encoding |
| 457 | = {{VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0}, |
| 458 | { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 459 | #define BT_COLON BT_NMSTRT |
| 460 | #include "asciitab.h" |
| 461 | #undef BT_COLON |
| 462 | #include "utf8tab.h" |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 463 | }, |
| 464 | STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_)}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 465 | |
| 466 | #ifdef XML_NS |
| 467 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 468 | static const struct normal_encoding internal_utf8_encoding_ns |
| 469 | = {{VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0}, |
| 470 | { |
| 471 | # include "iasciitab.h" |
| 472 | # include "utf8tab.h" |
| 473 | }, |
| 474 | STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_)}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 475 | |
| 476 | #endif |
| 477 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 478 | static const struct normal_encoding internal_utf8_encoding |
| 479 | = {{VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0}, |
| 480 | { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 481 | #define BT_COLON BT_NMSTRT |
| 482 | #include "iasciitab.h" |
| 483 | #undef BT_COLON |
| 484 | #include "utf8tab.h" |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 485 | }, |
| 486 | STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_)}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 487 | |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 488 | static enum XML_Convert_Result PTRCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 489 | latin1_toUtf8(const ENCODING *enc, const char **fromP, const char *fromLim, |
| 490 | char **toP, const char *toLim) { |
| 491 | UNUSED_P(enc); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 492 | for (;;) { |
| 493 | unsigned char c; |
| 494 | if (*fromP == fromLim) |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 495 | return XML_CONVERT_COMPLETED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 496 | c = (unsigned char)**fromP; |
| 497 | if (c & 0x80) { |
| 498 | if (toLim - *toP < 2) |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 499 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 500 | *(*toP)++ = (char)((c >> 6) | UTF8_cval2); |
| 501 | *(*toP)++ = (char)((c & 0x3f) | 0x80); |
| 502 | (*fromP)++; |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 503 | } else { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 504 | if (*toP == toLim) |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 505 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 506 | *(*toP)++ = *(*fromP)++; |
| 507 | } |
| 508 | } |
| 509 | } |
| 510 | |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 511 | static enum XML_Convert_Result PTRCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 512 | latin1_toUtf16(const ENCODING *enc, const char **fromP, const char *fromLim, |
| 513 | unsigned short **toP, const unsigned short *toLim) { |
| 514 | UNUSED_P(enc); |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 515 | while (*fromP < fromLim && *toP < toLim) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 516 | *(*toP)++ = (unsigned char)*(*fromP)++; |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 517 | |
| 518 | if ((*toP == toLim) && (*fromP < fromLim)) |
| 519 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
| 520 | else |
| 521 | return XML_CONVERT_COMPLETED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 522 | } |
| 523 | |
| 524 | #ifdef XML_NS |
| 525 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 526 | static const struct normal_encoding latin1_encoding_ns |
| 527 | = {{VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0}, |
| 528 | { |
| 529 | # include "asciitab.h" |
| 530 | # include "latin1tab.h" |
| 531 | }, |
| 532 | STANDARD_VTABLE(sb_) NULL_VTABLE}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 533 | |
| 534 | #endif |
| 535 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 536 | static const struct normal_encoding latin1_encoding |
| 537 | = {{VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0}, |
| 538 | { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 539 | #define BT_COLON BT_NMSTRT |
| 540 | #include "asciitab.h" |
| 541 | #undef BT_COLON |
| 542 | #include "latin1tab.h" |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 543 | }, |
| 544 | STANDARD_VTABLE(sb_) NULL_VTABLE}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 545 | |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 546 | static enum XML_Convert_Result PTRCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 547 | ascii_toUtf8(const ENCODING *enc, const char **fromP, const char *fromLim, |
| 548 | char **toP, const char *toLim) { |
| 549 | UNUSED_P(enc); |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 550 | while (*fromP < fromLim && *toP < toLim) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 551 | *(*toP)++ = *(*fromP)++; |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 552 | |
| 553 | if ((*toP == toLim) && (*fromP < fromLim)) |
| 554 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
| 555 | else |
| 556 | return XML_CONVERT_COMPLETED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 557 | } |
| 558 | |
| 559 | #ifdef XML_NS |
| 560 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 561 | static const struct normal_encoding ascii_encoding_ns |
| 562 | = {{VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0}, |
| 563 | { |
| 564 | # include "asciitab.h" |
| 565 | /* BT_NONXML == 0 */ |
| 566 | }, |
| 567 | STANDARD_VTABLE(sb_) NULL_VTABLE}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 568 | |
| 569 | #endif |
| 570 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 571 | static const struct normal_encoding ascii_encoding |
| 572 | = {{VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0}, |
| 573 | { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 574 | #define BT_COLON BT_NMSTRT |
| 575 | #include "asciitab.h" |
| 576 | #undef BT_COLON |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 577 | /* BT_NONXML == 0 */ |
| 578 | }, |
| 579 | STANDARD_VTABLE(sb_) NULL_VTABLE}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 580 | |
| 581 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 582 | unicode_byte_type(char hi, char lo) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 583 | switch ((unsigned char)hi) { |
Haibo Huang | d1a324a | 2020-10-28 22:19:36 -0700 | [diff] [blame] | 584 | /* 0xD800-0xDBFF first 16-bit code unit or high surrogate (W1) */ |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 585 | case 0xD8: |
| 586 | case 0xD9: |
| 587 | case 0xDA: |
| 588 | case 0xDB: |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 589 | return BT_LEAD4; |
Haibo Huang | d1a324a | 2020-10-28 22:19:36 -0700 | [diff] [blame] | 590 | /* 0xDC00-0xDFFF second 16-bit code unit or low surrogate (W2) */ |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 591 | case 0xDC: |
| 592 | case 0xDD: |
| 593 | case 0xDE: |
| 594 | case 0xDF: |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 595 | return BT_TRAIL; |
| 596 | case 0xFF: |
| 597 | switch ((unsigned char)lo) { |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 598 | case 0xFF: /* noncharacter-FFFF */ |
| 599 | case 0xFE: /* noncharacter-FFFE */ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 600 | return BT_NONXML; |
| 601 | } |
| 602 | break; |
| 603 | } |
| 604 | return BT_NONASCII; |
| 605 | } |
| 606 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 607 | #define DEFINE_UTF16_TO_UTF8(E) \ |
| 608 | static enum XML_Convert_Result PTRCALL E##toUtf8( \ |
| 609 | const ENCODING *enc, const char **fromP, const char *fromLim, \ |
| 610 | char **toP, const char *toLim) { \ |
| 611 | const char *from = *fromP; \ |
| 612 | UNUSED_P(enc); \ |
| 613 | fromLim = from + (((fromLim - from) >> 1) << 1); /* shrink to even */ \ |
| 614 | for (; from < fromLim; from += 2) { \ |
| 615 | int plane; \ |
| 616 | unsigned char lo2; \ |
| 617 | unsigned char lo = GET_LO(from); \ |
| 618 | unsigned char hi = GET_HI(from); \ |
| 619 | switch (hi) { \ |
| 620 | case 0: \ |
| 621 | if (lo < 0x80) { \ |
| 622 | if (*toP == toLim) { \ |
| 623 | *fromP = from; \ |
| 624 | return XML_CONVERT_OUTPUT_EXHAUSTED; \ |
| 625 | } \ |
| 626 | *(*toP)++ = lo; \ |
| 627 | break; \ |
| 628 | } \ |
| 629 | /* fall through */ \ |
| 630 | case 0x1: \ |
| 631 | case 0x2: \ |
| 632 | case 0x3: \ |
| 633 | case 0x4: \ |
| 634 | case 0x5: \ |
| 635 | case 0x6: \ |
| 636 | case 0x7: \ |
| 637 | if (toLim - *toP < 2) { \ |
| 638 | *fromP = from; \ |
| 639 | return XML_CONVERT_OUTPUT_EXHAUSTED; \ |
| 640 | } \ |
| 641 | *(*toP)++ = ((lo >> 6) | (hi << 2) | UTF8_cval2); \ |
| 642 | *(*toP)++ = ((lo & 0x3f) | 0x80); \ |
| 643 | break; \ |
| 644 | default: \ |
| 645 | if (toLim - *toP < 3) { \ |
| 646 | *fromP = from; \ |
| 647 | return XML_CONVERT_OUTPUT_EXHAUSTED; \ |
| 648 | } \ |
| 649 | /* 16 bits divided 4, 6, 6 amongst 3 bytes */ \ |
| 650 | *(*toP)++ = ((hi >> 4) | UTF8_cval3); \ |
| 651 | *(*toP)++ = (((hi & 0xf) << 2) | (lo >> 6) | 0x80); \ |
| 652 | *(*toP)++ = ((lo & 0x3f) | 0x80); \ |
| 653 | break; \ |
| 654 | case 0xD8: \ |
| 655 | case 0xD9: \ |
| 656 | case 0xDA: \ |
| 657 | case 0xDB: \ |
| 658 | if (toLim - *toP < 4) { \ |
| 659 | *fromP = from; \ |
| 660 | return XML_CONVERT_OUTPUT_EXHAUSTED; \ |
| 661 | } \ |
| 662 | if (fromLim - from < 4) { \ |
| 663 | *fromP = from; \ |
| 664 | return XML_CONVERT_INPUT_INCOMPLETE; \ |
| 665 | } \ |
| 666 | plane = (((hi & 0x3) << 2) | ((lo >> 6) & 0x3)) + 1; \ |
| 667 | *(*toP)++ = (char)((plane >> 2) | UTF8_cval4); \ |
| 668 | *(*toP)++ = (((lo >> 2) & 0xF) | ((plane & 0x3) << 4) | 0x80); \ |
| 669 | from += 2; \ |
| 670 | lo2 = GET_LO(from); \ |
| 671 | *(*toP)++ = (((lo & 0x3) << 4) | ((GET_HI(from) & 0x3) << 2) \ |
| 672 | | (lo2 >> 6) | 0x80); \ |
| 673 | *(*toP)++ = ((lo2 & 0x3f) | 0x80); \ |
| 674 | break; \ |
| 675 | } \ |
| 676 | } \ |
| 677 | *fromP = from; \ |
| 678 | if (from < fromLim) \ |
| 679 | return XML_CONVERT_INPUT_INCOMPLETE; \ |
| 680 | else \ |
| 681 | return XML_CONVERT_COMPLETED; \ |
| 682 | } |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 683 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 684 | #define DEFINE_UTF16_TO_UTF16(E) \ |
| 685 | static enum XML_Convert_Result PTRCALL E##toUtf16( \ |
| 686 | const ENCODING *enc, const char **fromP, const char *fromLim, \ |
| 687 | unsigned short **toP, const unsigned short *toLim) { \ |
| 688 | enum XML_Convert_Result res = XML_CONVERT_COMPLETED; \ |
| 689 | UNUSED_P(enc); \ |
| 690 | fromLim = *fromP + (((fromLim - *fromP) >> 1) << 1); /* shrink to even */ \ |
| 691 | /* Avoid copying first half only of surrogate */ \ |
| 692 | if (fromLim - *fromP > ((toLim - *toP) << 1) \ |
| 693 | && (GET_HI(fromLim - 2) & 0xF8) == 0xD8) { \ |
| 694 | fromLim -= 2; \ |
| 695 | res = XML_CONVERT_INPUT_INCOMPLETE; \ |
| 696 | } \ |
| 697 | for (; *fromP < fromLim && *toP < toLim; *fromP += 2) \ |
| 698 | *(*toP)++ = (GET_HI(*fromP) << 8) | GET_LO(*fromP); \ |
| 699 | if ((*toP == toLim) && (*fromP < fromLim)) \ |
| 700 | return XML_CONVERT_OUTPUT_EXHAUSTED; \ |
| 701 | else \ |
| 702 | return res; \ |
| 703 | } |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 704 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 705 | #define SET2(ptr, ch) (((ptr)[0] = ((ch)&0xff)), ((ptr)[1] = ((ch) >> 8))) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 706 | #define GET_LO(ptr) ((unsigned char)(ptr)[0]) |
| 707 | #define GET_HI(ptr) ((unsigned char)(ptr)[1]) |
| 708 | |
| 709 | DEFINE_UTF16_TO_UTF8(little2_) |
| 710 | DEFINE_UTF16_TO_UTF16(little2_) |
| 711 | |
| 712 | #undef SET2 |
| 713 | #undef GET_LO |
| 714 | #undef GET_HI |
| 715 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 716 | #define SET2(ptr, ch) (((ptr)[0] = ((ch) >> 8)), ((ptr)[1] = ((ch)&0xFF))) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 717 | #define GET_LO(ptr) ((unsigned char)(ptr)[1]) |
| 718 | #define GET_HI(ptr) ((unsigned char)(ptr)[0]) |
| 719 | |
| 720 | DEFINE_UTF16_TO_UTF8(big2_) |
| 721 | DEFINE_UTF16_TO_UTF16(big2_) |
| 722 | |
| 723 | #undef SET2 |
| 724 | #undef GET_LO |
| 725 | #undef GET_HI |
| 726 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 727 | #define LITTLE2_BYTE_TYPE(enc, p) \ |
| 728 | ((p)[1] == 0 ? ((struct normal_encoding *)(enc))->type[(unsigned char)*(p)] \ |
| 729 | : unicode_byte_type((p)[1], (p)[0])) |
| 730 | #define LITTLE2_BYTE_TO_ASCII(p) ((p)[1] == 0 ? (p)[0] : -1) |
| 731 | #define LITTLE2_CHAR_MATCHES(p, c) ((p)[1] == 0 && (p)[0] == c) |
| 732 | #define LITTLE2_IS_NAME_CHAR_MINBPC(p) \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 733 | UCS2_GET_NAMING(namePages, (unsigned char)p[1], (unsigned char)p[0]) |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 734 | #define LITTLE2_IS_NMSTRT_CHAR_MINBPC(p) \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 735 | UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[1], (unsigned char)p[0]) |
| 736 | |
| 737 | #ifdef XML_MIN_SIZE |
| 738 | |
| 739 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 740 | little2_byteType(const ENCODING *enc, const char *p) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 741 | return LITTLE2_BYTE_TYPE(enc, p); |
| 742 | } |
| 743 | |
| 744 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 745 | little2_byteToAscii(const ENCODING *enc, const char *p) { |
| 746 | UNUSED_P(enc); |
| 747 | return LITTLE2_BYTE_TO_ASCII(p); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 748 | } |
| 749 | |
| 750 | static int PTRCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 751 | little2_charMatches(const ENCODING *enc, const char *p, int c) { |
| 752 | UNUSED_P(enc); |
| 753 | return LITTLE2_CHAR_MATCHES(p, c); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 754 | } |
| 755 | |
| 756 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 757 | little2_isNameMin(const ENCODING *enc, const char *p) { |
| 758 | UNUSED_P(enc); |
| 759 | return LITTLE2_IS_NAME_CHAR_MINBPC(p); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 760 | } |
| 761 | |
| 762 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 763 | little2_isNmstrtMin(const ENCODING *enc, const char *p) { |
| 764 | UNUSED_P(enc); |
| 765 | return LITTLE2_IS_NMSTRT_CHAR_MINBPC(p); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 766 | } |
| 767 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 768 | # undef VTABLE |
| 769 | # define VTABLE VTABLE1, little2_toUtf8, little2_toUtf16 |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 770 | |
| 771 | #else /* not XML_MIN_SIZE */ |
| 772 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 773 | # undef PREFIX |
| 774 | # define PREFIX(ident) little2_##ident |
| 775 | # define MINBPC(enc) 2 |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 776 | /* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */ |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 777 | # define BYTE_TYPE(enc, p) LITTLE2_BYTE_TYPE(enc, p) |
| 778 | # define BYTE_TO_ASCII(enc, p) LITTLE2_BYTE_TO_ASCII(p) |
| 779 | # define CHAR_MATCHES(enc, p, c) LITTLE2_CHAR_MATCHES(p, c) |
| 780 | # define IS_NAME_CHAR(enc, p, n) 0 |
| 781 | # define IS_NAME_CHAR_MINBPC(enc, p) LITTLE2_IS_NAME_CHAR_MINBPC(p) |
| 782 | # define IS_NMSTRT_CHAR(enc, p, n) (0) |
| 783 | # define IS_NMSTRT_CHAR_MINBPC(enc, p) LITTLE2_IS_NMSTRT_CHAR_MINBPC(p) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 784 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 785 | # define XML_TOK_IMPL_C |
| 786 | # include "xmltok_impl.c" |
| 787 | # undef XML_TOK_IMPL_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 788 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 789 | # undef MINBPC |
| 790 | # undef BYTE_TYPE |
| 791 | # undef BYTE_TO_ASCII |
| 792 | # undef CHAR_MATCHES |
| 793 | # undef IS_NAME_CHAR |
| 794 | # undef IS_NAME_CHAR_MINBPC |
| 795 | # undef IS_NMSTRT_CHAR |
| 796 | # undef IS_NMSTRT_CHAR_MINBPC |
| 797 | # undef IS_INVALID_CHAR |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 798 | |
| 799 | #endif /* not XML_MIN_SIZE */ |
| 800 | |
| 801 | #ifdef XML_NS |
| 802 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 803 | static const struct normal_encoding little2_encoding_ns |
| 804 | = {{VTABLE, 2, 0, |
| 805 | # if BYTEORDER == 1234 |
| 806 | 1 |
| 807 | # else |
| 808 | 0 |
| 809 | # endif |
| 810 | }, |
| 811 | { |
| 812 | # include "asciitab.h" |
| 813 | # include "latin1tab.h" |
| 814 | }, |
| 815 | STANDARD_VTABLE(little2_) NULL_VTABLE}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 816 | |
| 817 | #endif |
| 818 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 819 | static const struct normal_encoding little2_encoding |
| 820 | = {{VTABLE, 2, 0, |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 821 | #if BYTEORDER == 1234 |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 822 | 1 |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 823 | #else |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 824 | 0 |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 825 | #endif |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 826 | }, |
| 827 | { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 828 | #define BT_COLON BT_NMSTRT |
| 829 | #include "asciitab.h" |
| 830 | #undef BT_COLON |
| 831 | #include "latin1tab.h" |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 832 | }, |
| 833 | STANDARD_VTABLE(little2_) NULL_VTABLE}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 834 | |
| 835 | #if BYTEORDER != 4321 |
| 836 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 837 | # ifdef XML_NS |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 838 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 839 | static const struct normal_encoding internal_little2_encoding_ns |
| 840 | = {{VTABLE, 2, 0, 1}, |
| 841 | { |
| 842 | # include "iasciitab.h" |
| 843 | # include "latin1tab.h" |
| 844 | }, |
| 845 | STANDARD_VTABLE(little2_) NULL_VTABLE}; |
| 846 | |
| 847 | # endif |
| 848 | |
| 849 | static const struct normal_encoding internal_little2_encoding |
| 850 | = {{VTABLE, 2, 0, 1}, |
| 851 | { |
| 852 | # define BT_COLON BT_NMSTRT |
| 853 | # include "iasciitab.h" |
| 854 | # undef BT_COLON |
| 855 | # include "latin1tab.h" |
| 856 | }, |
| 857 | STANDARD_VTABLE(little2_) NULL_VTABLE}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 858 | |
| 859 | #endif |
| 860 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 861 | #define BIG2_BYTE_TYPE(enc, p) \ |
| 862 | ((p)[0] == 0 \ |
| 863 | ? ((struct normal_encoding *)(enc))->type[(unsigned char)(p)[1]] \ |
| 864 | : unicode_byte_type((p)[0], (p)[1])) |
| 865 | #define BIG2_BYTE_TO_ASCII(p) ((p)[0] == 0 ? (p)[1] : -1) |
| 866 | #define BIG2_CHAR_MATCHES(p, c) ((p)[0] == 0 && (p)[1] == c) |
| 867 | #define BIG2_IS_NAME_CHAR_MINBPC(p) \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 868 | UCS2_GET_NAMING(namePages, (unsigned char)p[0], (unsigned char)p[1]) |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 869 | #define BIG2_IS_NMSTRT_CHAR_MINBPC(p) \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 870 | UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[0], (unsigned char)p[1]) |
| 871 | |
| 872 | #ifdef XML_MIN_SIZE |
| 873 | |
| 874 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 875 | big2_byteType(const ENCODING *enc, const char *p) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 876 | return BIG2_BYTE_TYPE(enc, p); |
| 877 | } |
| 878 | |
| 879 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 880 | big2_byteToAscii(const ENCODING *enc, const char *p) { |
| 881 | UNUSED_P(enc); |
| 882 | return BIG2_BYTE_TO_ASCII(p); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 883 | } |
| 884 | |
| 885 | static int PTRCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 886 | big2_charMatches(const ENCODING *enc, const char *p, int c) { |
| 887 | UNUSED_P(enc); |
| 888 | return BIG2_CHAR_MATCHES(p, c); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 889 | } |
| 890 | |
| 891 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 892 | big2_isNameMin(const ENCODING *enc, const char *p) { |
| 893 | UNUSED_P(enc); |
| 894 | return BIG2_IS_NAME_CHAR_MINBPC(p); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 895 | } |
| 896 | |
| 897 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 898 | big2_isNmstrtMin(const ENCODING *enc, const char *p) { |
| 899 | UNUSED_P(enc); |
| 900 | return BIG2_IS_NMSTRT_CHAR_MINBPC(p); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 901 | } |
| 902 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 903 | # undef VTABLE |
| 904 | # define VTABLE VTABLE1, big2_toUtf8, big2_toUtf16 |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 905 | |
| 906 | #else /* not XML_MIN_SIZE */ |
| 907 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 908 | # undef PREFIX |
| 909 | # define PREFIX(ident) big2_##ident |
| 910 | # define MINBPC(enc) 2 |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 911 | /* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */ |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 912 | # define BYTE_TYPE(enc, p) BIG2_BYTE_TYPE(enc, p) |
| 913 | # define BYTE_TO_ASCII(enc, p) BIG2_BYTE_TO_ASCII(p) |
| 914 | # define CHAR_MATCHES(enc, p, c) BIG2_CHAR_MATCHES(p, c) |
| 915 | # define IS_NAME_CHAR(enc, p, n) 0 |
| 916 | # define IS_NAME_CHAR_MINBPC(enc, p) BIG2_IS_NAME_CHAR_MINBPC(p) |
| 917 | # define IS_NMSTRT_CHAR(enc, p, n) (0) |
| 918 | # define IS_NMSTRT_CHAR_MINBPC(enc, p) BIG2_IS_NMSTRT_CHAR_MINBPC(p) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 919 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 920 | # define XML_TOK_IMPL_C |
| 921 | # include "xmltok_impl.c" |
| 922 | # undef XML_TOK_IMPL_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 923 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 924 | # undef MINBPC |
| 925 | # undef BYTE_TYPE |
| 926 | # undef BYTE_TO_ASCII |
| 927 | # undef CHAR_MATCHES |
| 928 | # undef IS_NAME_CHAR |
| 929 | # undef IS_NAME_CHAR_MINBPC |
| 930 | # undef IS_NMSTRT_CHAR |
| 931 | # undef IS_NMSTRT_CHAR_MINBPC |
| 932 | # undef IS_INVALID_CHAR |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 933 | |
| 934 | #endif /* not XML_MIN_SIZE */ |
| 935 | |
| 936 | #ifdef XML_NS |
| 937 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 938 | static const struct normal_encoding big2_encoding_ns |
| 939 | = {{VTABLE, 2, 0, |
| 940 | # if BYTEORDER == 4321 |
| 941 | 1 |
| 942 | # else |
| 943 | 0 |
| 944 | # endif |
| 945 | }, |
| 946 | { |
| 947 | # include "asciitab.h" |
| 948 | # include "latin1tab.h" |
| 949 | }, |
| 950 | STANDARD_VTABLE(big2_) NULL_VTABLE}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 951 | |
| 952 | #endif |
| 953 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 954 | static const struct normal_encoding big2_encoding |
| 955 | = {{VTABLE, 2, 0, |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 956 | #if BYTEORDER == 4321 |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 957 | 1 |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 958 | #else |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 959 | 0 |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 960 | #endif |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 961 | }, |
| 962 | { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 963 | #define BT_COLON BT_NMSTRT |
| 964 | #include "asciitab.h" |
| 965 | #undef BT_COLON |
| 966 | #include "latin1tab.h" |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 967 | }, |
| 968 | STANDARD_VTABLE(big2_) NULL_VTABLE}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 969 | |
| 970 | #if BYTEORDER != 1234 |
| 971 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 972 | # ifdef XML_NS |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 973 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 974 | static const struct normal_encoding internal_big2_encoding_ns |
| 975 | = {{VTABLE, 2, 0, 1}, |
| 976 | { |
| 977 | # include "iasciitab.h" |
| 978 | # include "latin1tab.h" |
| 979 | }, |
| 980 | STANDARD_VTABLE(big2_) NULL_VTABLE}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 981 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 982 | # endif |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 983 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 984 | static const struct normal_encoding internal_big2_encoding |
| 985 | = {{VTABLE, 2, 0, 1}, |
| 986 | { |
| 987 | # define BT_COLON BT_NMSTRT |
| 988 | # include "iasciitab.h" |
| 989 | # undef BT_COLON |
| 990 | # include "latin1tab.h" |
| 991 | }, |
| 992 | STANDARD_VTABLE(big2_) NULL_VTABLE}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 993 | |
| 994 | #endif |
| 995 | |
| 996 | #undef PREFIX |
| 997 | |
| 998 | static int FASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 999 | streqci(const char *s1, const char *s2) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1000 | for (;;) { |
| 1001 | char c1 = *s1++; |
| 1002 | char c2 = *s2++; |
| 1003 | if (ASCII_a <= c1 && c1 <= ASCII_z) |
| 1004 | c1 += ASCII_A - ASCII_a; |
| 1005 | if (ASCII_a <= c2 && c2 <= ASCII_z) |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 1006 | /* The following line will never get executed. streqci() is |
| 1007 | * only called from two places, both of which guarantee to put |
| 1008 | * upper-case strings into s2. |
| 1009 | */ |
| 1010 | c2 += ASCII_A - ASCII_a; /* LCOV_EXCL_LINE */ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1011 | if (c1 != c2) |
| 1012 | return 0; |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1013 | if (! c1) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1014 | break; |
| 1015 | } |
| 1016 | return 1; |
| 1017 | } |
| 1018 | |
| 1019 | static void PTRCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1020 | initUpdatePosition(const ENCODING *enc, const char *ptr, const char *end, |
| 1021 | POSITION *pos) { |
| 1022 | UNUSED_P(enc); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1023 | normal_updatePosition(&utf8_encoding.enc, ptr, end, pos); |
| 1024 | } |
| 1025 | |
| 1026 | static int |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1027 | toAscii(const ENCODING *enc, const char *ptr, const char *end) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1028 | char buf[1]; |
| 1029 | char *p = buf; |
| 1030 | XmlUtf8Convert(enc, &ptr, end, &p, p + 1); |
| 1031 | if (p == buf) |
| 1032 | return -1; |
| 1033 | else |
| 1034 | return buf[0]; |
| 1035 | } |
| 1036 | |
| 1037 | static int FASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1038 | isSpace(int c) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1039 | switch (c) { |
| 1040 | case 0x20: |
| 1041 | case 0xD: |
| 1042 | case 0xA: |
| 1043 | case 0x9: |
| 1044 | return 1; |
| 1045 | } |
| 1046 | return 0; |
| 1047 | } |
| 1048 | |
| 1049 | /* Return 1 if there's just optional white space or there's an S |
| 1050 | followed by name=val. |
| 1051 | */ |
| 1052 | static int |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1053 | parsePseudoAttribute(const ENCODING *enc, const char *ptr, const char *end, |
| 1054 | const char **namePtr, const char **nameEndPtr, |
| 1055 | const char **valPtr, const char **nextTokPtr) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1056 | int c; |
| 1057 | char open; |
| 1058 | if (ptr == end) { |
| 1059 | *namePtr = NULL; |
| 1060 | return 1; |
| 1061 | } |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1062 | if (! isSpace(toAscii(enc, ptr, end))) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1063 | *nextTokPtr = ptr; |
| 1064 | return 0; |
| 1065 | } |
| 1066 | do { |
| 1067 | ptr += enc->minBytesPerChar; |
| 1068 | } while (isSpace(toAscii(enc, ptr, end))); |
| 1069 | if (ptr == end) { |
| 1070 | *namePtr = NULL; |
| 1071 | return 1; |
| 1072 | } |
| 1073 | *namePtr = ptr; |
| 1074 | for (;;) { |
| 1075 | c = toAscii(enc, ptr, end); |
| 1076 | if (c == -1) { |
| 1077 | *nextTokPtr = ptr; |
| 1078 | return 0; |
| 1079 | } |
| 1080 | if (c == ASCII_EQUALS) { |
| 1081 | *nameEndPtr = ptr; |
| 1082 | break; |
| 1083 | } |
| 1084 | if (isSpace(c)) { |
| 1085 | *nameEndPtr = ptr; |
| 1086 | do { |
| 1087 | ptr += enc->minBytesPerChar; |
| 1088 | } while (isSpace(c = toAscii(enc, ptr, end))); |
| 1089 | if (c != ASCII_EQUALS) { |
| 1090 | *nextTokPtr = ptr; |
| 1091 | return 0; |
| 1092 | } |
| 1093 | break; |
| 1094 | } |
| 1095 | ptr += enc->minBytesPerChar; |
| 1096 | } |
| 1097 | if (ptr == *namePtr) { |
| 1098 | *nextTokPtr = ptr; |
| 1099 | return 0; |
| 1100 | } |
| 1101 | ptr += enc->minBytesPerChar; |
| 1102 | c = toAscii(enc, ptr, end); |
| 1103 | while (isSpace(c)) { |
| 1104 | ptr += enc->minBytesPerChar; |
| 1105 | c = toAscii(enc, ptr, end); |
| 1106 | } |
| 1107 | if (c != ASCII_QUOT && c != ASCII_APOS) { |
| 1108 | *nextTokPtr = ptr; |
| 1109 | return 0; |
| 1110 | } |
| 1111 | open = (char)c; |
| 1112 | ptr += enc->minBytesPerChar; |
| 1113 | *valPtr = ptr; |
| 1114 | for (;; ptr += enc->minBytesPerChar) { |
| 1115 | c = toAscii(enc, ptr, end); |
| 1116 | if (c == open) |
| 1117 | break; |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1118 | if (! (ASCII_a <= c && c <= ASCII_z) && ! (ASCII_A <= c && c <= ASCII_Z) |
| 1119 | && ! (ASCII_0 <= c && c <= ASCII_9) && c != ASCII_PERIOD |
| 1120 | && c != ASCII_MINUS && c != ASCII_UNDERSCORE) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1121 | *nextTokPtr = ptr; |
| 1122 | return 0; |
| 1123 | } |
| 1124 | } |
| 1125 | *nextTokPtr = ptr + enc->minBytesPerChar; |
| 1126 | return 1; |
| 1127 | } |
| 1128 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1129 | static const char KW_version[] |
| 1130 | = {ASCII_v, ASCII_e, ASCII_r, ASCII_s, ASCII_i, ASCII_o, ASCII_n, '\0'}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1131 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1132 | static const char KW_encoding[] = {ASCII_e, ASCII_n, ASCII_c, ASCII_o, ASCII_d, |
| 1133 | ASCII_i, ASCII_n, ASCII_g, '\0'}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1134 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1135 | static const char KW_standalone[] |
| 1136 | = {ASCII_s, ASCII_t, ASCII_a, ASCII_n, ASCII_d, ASCII_a, |
| 1137 | ASCII_l, ASCII_o, ASCII_n, ASCII_e, '\0'}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1138 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1139 | static const char KW_yes[] = {ASCII_y, ASCII_e, ASCII_s, '\0'}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1140 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1141 | static const char KW_no[] = {ASCII_n, ASCII_o, '\0'}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1142 | |
| 1143 | static int |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1144 | doParseXmlDecl(const ENCODING *(*encodingFinder)(const ENCODING *, const char *, |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1145 | const char *), |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1146 | int isGeneralTextEntity, const ENCODING *enc, const char *ptr, |
| 1147 | const char *end, const char **badPtr, const char **versionPtr, |
| 1148 | const char **versionEndPtr, const char **encodingName, |
| 1149 | const ENCODING **encoding, int *standalone) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1150 | const char *val = NULL; |
| 1151 | const char *name = NULL; |
| 1152 | const char *nameEnd = NULL; |
| 1153 | ptr += 5 * enc->minBytesPerChar; |
| 1154 | end -= 2 * enc->minBytesPerChar; |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1155 | if (! parsePseudoAttribute(enc, ptr, end, &name, &nameEnd, &val, &ptr) |
| 1156 | || ! name) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1157 | *badPtr = ptr; |
| 1158 | return 0; |
| 1159 | } |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1160 | if (! XmlNameMatchesAscii(enc, name, nameEnd, KW_version)) { |
| 1161 | if (! isGeneralTextEntity) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1162 | *badPtr = name; |
| 1163 | return 0; |
| 1164 | } |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1165 | } else { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1166 | if (versionPtr) |
| 1167 | *versionPtr = val; |
| 1168 | if (versionEndPtr) |
| 1169 | *versionEndPtr = ptr; |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1170 | if (! parsePseudoAttribute(enc, ptr, end, &name, &nameEnd, &val, &ptr)) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1171 | *badPtr = ptr; |
| 1172 | return 0; |
| 1173 | } |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1174 | if (! name) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1175 | if (isGeneralTextEntity) { |
| 1176 | /* a TextDecl must have an EncodingDecl */ |
| 1177 | *badPtr = ptr; |
| 1178 | return 0; |
| 1179 | } |
| 1180 | return 1; |
| 1181 | } |
| 1182 | } |
| 1183 | if (XmlNameMatchesAscii(enc, name, nameEnd, KW_encoding)) { |
| 1184 | int c = toAscii(enc, val, end); |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1185 | if (! (ASCII_a <= c && c <= ASCII_z) && ! (ASCII_A <= c && c <= ASCII_Z)) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1186 | *badPtr = val; |
| 1187 | return 0; |
| 1188 | } |
| 1189 | if (encodingName) |
| 1190 | *encodingName = val; |
| 1191 | if (encoding) |
| 1192 | *encoding = encodingFinder(enc, val, ptr - enc->minBytesPerChar); |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1193 | if (! parsePseudoAttribute(enc, ptr, end, &name, &nameEnd, &val, &ptr)) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1194 | *badPtr = ptr; |
| 1195 | return 0; |
| 1196 | } |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1197 | if (! name) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1198 | return 1; |
| 1199 | } |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1200 | if (! XmlNameMatchesAscii(enc, name, nameEnd, KW_standalone) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1201 | || isGeneralTextEntity) { |
| 1202 | *badPtr = name; |
| 1203 | return 0; |
| 1204 | } |
| 1205 | if (XmlNameMatchesAscii(enc, val, ptr - enc->minBytesPerChar, KW_yes)) { |
| 1206 | if (standalone) |
| 1207 | *standalone = 1; |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1208 | } else if (XmlNameMatchesAscii(enc, val, ptr - enc->minBytesPerChar, KW_no)) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1209 | if (standalone) |
| 1210 | *standalone = 0; |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1211 | } else { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1212 | *badPtr = val; |
| 1213 | return 0; |
| 1214 | } |
| 1215 | while (isSpace(toAscii(enc, ptr, end))) |
| 1216 | ptr += enc->minBytesPerChar; |
| 1217 | if (ptr != end) { |
| 1218 | *badPtr = ptr; |
| 1219 | return 0; |
| 1220 | } |
| 1221 | return 1; |
| 1222 | } |
| 1223 | |
| 1224 | static int FASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1225 | checkCharRefNumber(int result) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1226 | switch (result >> 8) { |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1227 | case 0xD8: |
| 1228 | case 0xD9: |
| 1229 | case 0xDA: |
| 1230 | case 0xDB: |
| 1231 | case 0xDC: |
| 1232 | case 0xDD: |
| 1233 | case 0xDE: |
| 1234 | case 0xDF: |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1235 | return -1; |
| 1236 | case 0: |
| 1237 | if (latin1_encoding.type[result] == BT_NONXML) |
| 1238 | return -1; |
| 1239 | break; |
| 1240 | case 0xFF: |
| 1241 | if (result == 0xFFFE || result == 0xFFFF) |
| 1242 | return -1; |
| 1243 | break; |
| 1244 | } |
| 1245 | return result; |
| 1246 | } |
| 1247 | |
| 1248 | int FASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1249 | XmlUtf8Encode(int c, char *buf) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1250 | enum { |
| 1251 | /* minN is minimum legal resulting value for N byte sequence */ |
| 1252 | min2 = 0x80, |
| 1253 | min3 = 0x800, |
| 1254 | min4 = 0x10000 |
| 1255 | }; |
| 1256 | |
| 1257 | if (c < 0) |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 1258 | return 0; /* LCOV_EXCL_LINE: this case is always eliminated beforehand */ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1259 | if (c < min2) { |
| 1260 | buf[0] = (char)(c | UTF8_cval1); |
| 1261 | return 1; |
| 1262 | } |
| 1263 | if (c < min3) { |
| 1264 | buf[0] = (char)((c >> 6) | UTF8_cval2); |
| 1265 | buf[1] = (char)((c & 0x3f) | 0x80); |
| 1266 | return 2; |
| 1267 | } |
| 1268 | if (c < min4) { |
| 1269 | buf[0] = (char)((c >> 12) | UTF8_cval3); |
| 1270 | buf[1] = (char)(((c >> 6) & 0x3f) | 0x80); |
| 1271 | buf[2] = (char)((c & 0x3f) | 0x80); |
| 1272 | return 3; |
| 1273 | } |
| 1274 | if (c < 0x110000) { |
| 1275 | buf[0] = (char)((c >> 18) | UTF8_cval4); |
| 1276 | buf[1] = (char)(((c >> 12) & 0x3f) | 0x80); |
| 1277 | buf[2] = (char)(((c >> 6) & 0x3f) | 0x80); |
| 1278 | buf[3] = (char)((c & 0x3f) | 0x80); |
| 1279 | return 4; |
| 1280 | } |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 1281 | return 0; /* LCOV_EXCL_LINE: this case too is eliminated before calling */ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1282 | } |
| 1283 | |
| 1284 | int FASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1285 | XmlUtf16Encode(int charNum, unsigned short *buf) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1286 | if (charNum < 0) |
| 1287 | return 0; |
| 1288 | if (charNum < 0x10000) { |
| 1289 | buf[0] = (unsigned short)charNum; |
| 1290 | return 1; |
| 1291 | } |
| 1292 | if (charNum < 0x110000) { |
| 1293 | charNum -= 0x10000; |
| 1294 | buf[0] = (unsigned short)((charNum >> 10) + 0xD800); |
| 1295 | buf[1] = (unsigned short)((charNum & 0x3FF) + 0xDC00); |
| 1296 | return 2; |
| 1297 | } |
| 1298 | return 0; |
| 1299 | } |
| 1300 | |
| 1301 | struct unknown_encoding { |
| 1302 | struct normal_encoding normal; |
| 1303 | CONVERTER convert; |
| 1304 | void *userData; |
| 1305 | unsigned short utf16[256]; |
| 1306 | char utf8[256][4]; |
| 1307 | }; |
| 1308 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1309 | #define AS_UNKNOWN_ENCODING(enc) ((const struct unknown_encoding *)(enc)) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1310 | |
| 1311 | int |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1312 | XmlSizeOfUnknownEncoding(void) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1313 | return sizeof(struct unknown_encoding); |
| 1314 | } |
| 1315 | |
| 1316 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1317 | unknown_isName(const ENCODING *enc, const char *p) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1318 | const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc); |
| 1319 | int c = uenc->convert(uenc->userData, p); |
| 1320 | if (c & ~0xFFFF) |
| 1321 | return 0; |
| 1322 | return UCS2_GET_NAMING(namePages, c >> 8, c & 0xFF); |
| 1323 | } |
| 1324 | |
| 1325 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1326 | unknown_isNmstrt(const ENCODING *enc, const char *p) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1327 | const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc); |
| 1328 | int c = uenc->convert(uenc->userData, p); |
| 1329 | if (c & ~0xFFFF) |
| 1330 | return 0; |
| 1331 | return UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xFF); |
| 1332 | } |
| 1333 | |
| 1334 | static int PTRFASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1335 | unknown_isInvalid(const ENCODING *enc, const char *p) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1336 | const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc); |
| 1337 | int c = uenc->convert(uenc->userData, p); |
| 1338 | return (c & ~0xFFFF) || checkCharRefNumber(c) < 0; |
| 1339 | } |
| 1340 | |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1341 | static enum XML_Convert_Result PTRCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1342 | unknown_toUtf8(const ENCODING *enc, const char **fromP, const char *fromLim, |
| 1343 | char **toP, const char *toLim) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1344 | const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc); |
| 1345 | char buf[XML_UTF8_ENCODE_MAX]; |
| 1346 | for (;;) { |
| 1347 | const char *utf8; |
| 1348 | int n; |
| 1349 | if (*fromP == fromLim) |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1350 | return XML_CONVERT_COMPLETED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1351 | utf8 = uenc->utf8[(unsigned char)**fromP]; |
| 1352 | n = *utf8++; |
| 1353 | if (n == 0) { |
| 1354 | int c = uenc->convert(uenc->userData, *fromP); |
| 1355 | n = XmlUtf8Encode(c, buf); |
| 1356 | if (n > toLim - *toP) |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1357 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1358 | utf8 = buf; |
| 1359 | *fromP += (AS_NORMAL_ENCODING(enc)->type[(unsigned char)**fromP] |
| 1360 | - (BT_LEAD2 - 2)); |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1361 | } else { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1362 | if (n > toLim - *toP) |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1363 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1364 | (*fromP)++; |
| 1365 | } |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 1366 | memcpy(*toP, utf8, n); |
| 1367 | *toP += n; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1368 | } |
| 1369 | } |
| 1370 | |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1371 | static enum XML_Convert_Result PTRCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1372 | unknown_toUtf16(const ENCODING *enc, const char **fromP, const char *fromLim, |
| 1373 | unsigned short **toP, const unsigned short *toLim) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1374 | const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc); |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1375 | while (*fromP < fromLim && *toP < toLim) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1376 | unsigned short c = uenc->utf16[(unsigned char)**fromP]; |
| 1377 | if (c == 0) { |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1378 | c = (unsigned short)uenc->convert(uenc->userData, *fromP); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1379 | *fromP += (AS_NORMAL_ENCODING(enc)->type[(unsigned char)**fromP] |
| 1380 | - (BT_LEAD2 - 2)); |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1381 | } else |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1382 | (*fromP)++; |
| 1383 | *(*toP)++ = c; |
| 1384 | } |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1385 | |
| 1386 | if ((*toP == toLim) && (*fromP < fromLim)) |
| 1387 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
| 1388 | else |
| 1389 | return XML_CONVERT_COMPLETED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1390 | } |
| 1391 | |
| 1392 | ENCODING * |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1393 | XmlInitUnknownEncoding(void *mem, int *table, CONVERTER convert, |
| 1394 | void *userData) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1395 | int i; |
| 1396 | struct unknown_encoding *e = (struct unknown_encoding *)mem; |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1397 | memcpy(mem, &latin1_encoding, sizeof(struct normal_encoding)); |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1398 | for (i = 0; i < 128; i++) |
| 1399 | if (latin1_encoding.type[i] != BT_OTHER |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1400 | && latin1_encoding.type[i] != BT_NONXML && table[i] != i) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1401 | return 0; |
| 1402 | for (i = 0; i < 256; i++) { |
| 1403 | int c = table[i]; |
| 1404 | if (c == -1) { |
| 1405 | e->normal.type[i] = BT_MALFORM; |
| 1406 | /* This shouldn't really get used. */ |
| 1407 | e->utf16[i] = 0xFFFF; |
| 1408 | e->utf8[i][0] = 1; |
| 1409 | e->utf8[i][1] = 0; |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1410 | } else if (c < 0) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1411 | if (c < -4) |
| 1412 | return 0; |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 1413 | /* Multi-byte sequences need a converter function */ |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1414 | if (! convert) |
Elliott Hughes | 7247294 | 2018-01-10 08:36:10 -0800 | [diff] [blame] | 1415 | return 0; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1416 | e->normal.type[i] = (unsigned char)(BT_LEAD2 - (c + 2)); |
| 1417 | e->utf8[i][0] = 0; |
| 1418 | e->utf16[i] = 0; |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1419 | } else if (c < 0x80) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1420 | if (latin1_encoding.type[c] != BT_OTHER |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1421 | && latin1_encoding.type[c] != BT_NONXML && c != i) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1422 | return 0; |
| 1423 | e->normal.type[i] = latin1_encoding.type[c]; |
| 1424 | e->utf8[i][0] = 1; |
| 1425 | e->utf8[i][1] = (char)c; |
| 1426 | e->utf16[i] = (unsigned short)(c == 0 ? 0xFFFF : c); |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1427 | } else if (checkCharRefNumber(c) < 0) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1428 | e->normal.type[i] = BT_NONXML; |
| 1429 | /* This shouldn't really get used. */ |
| 1430 | e->utf16[i] = 0xFFFF; |
| 1431 | e->utf8[i][0] = 1; |
| 1432 | e->utf8[i][1] = 0; |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1433 | } else { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1434 | if (c > 0xFFFF) |
| 1435 | return 0; |
| 1436 | if (UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xff)) |
| 1437 | e->normal.type[i] = BT_NMSTRT; |
| 1438 | else if (UCS2_GET_NAMING(namePages, c >> 8, c & 0xff)) |
| 1439 | e->normal.type[i] = BT_NAME; |
| 1440 | else |
| 1441 | e->normal.type[i] = BT_OTHER; |
| 1442 | e->utf8[i][0] = (char)XmlUtf8Encode(c, e->utf8[i] + 1); |
| 1443 | e->utf16[i] = (unsigned short)c; |
| 1444 | } |
| 1445 | } |
| 1446 | e->userData = userData; |
| 1447 | e->convert = convert; |
| 1448 | if (convert) { |
| 1449 | e->normal.isName2 = unknown_isName; |
| 1450 | e->normal.isName3 = unknown_isName; |
| 1451 | e->normal.isName4 = unknown_isName; |
| 1452 | e->normal.isNmstrt2 = unknown_isNmstrt; |
| 1453 | e->normal.isNmstrt3 = unknown_isNmstrt; |
| 1454 | e->normal.isNmstrt4 = unknown_isNmstrt; |
| 1455 | e->normal.isInvalid2 = unknown_isInvalid; |
| 1456 | e->normal.isInvalid3 = unknown_isInvalid; |
| 1457 | e->normal.isInvalid4 = unknown_isInvalid; |
| 1458 | } |
| 1459 | e->normal.enc.utf8Convert = unknown_toUtf8; |
| 1460 | e->normal.enc.utf16Convert = unknown_toUtf16; |
| 1461 | return &(e->normal.enc); |
| 1462 | } |
| 1463 | |
| 1464 | /* If this enumeration is changed, getEncodingIndex and encodings |
| 1465 | must also be changed. */ |
| 1466 | enum { |
| 1467 | UNKNOWN_ENC = -1, |
| 1468 | ISO_8859_1_ENC = 0, |
| 1469 | US_ASCII_ENC, |
| 1470 | UTF_8_ENC, |
| 1471 | UTF_16_ENC, |
| 1472 | UTF_16BE_ENC, |
| 1473 | UTF_16LE_ENC, |
| 1474 | /* must match encodingNames up to here */ |
| 1475 | NO_ENC |
| 1476 | }; |
| 1477 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1478 | static const char KW_ISO_8859_1[] |
| 1479 | = {ASCII_I, ASCII_S, ASCII_O, ASCII_MINUS, ASCII_8, ASCII_8, |
| 1480 | ASCII_5, ASCII_9, ASCII_MINUS, ASCII_1, '\0'}; |
| 1481 | static const char KW_US_ASCII[] |
| 1482 | = {ASCII_U, ASCII_S, ASCII_MINUS, ASCII_A, ASCII_S, |
| 1483 | ASCII_C, ASCII_I, ASCII_I, '\0'}; |
| 1484 | static const char KW_UTF_8[] |
| 1485 | = {ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_8, '\0'}; |
| 1486 | static const char KW_UTF_16[] |
| 1487 | = {ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_1, ASCII_6, '\0'}; |
| 1488 | static const char KW_UTF_16BE[] |
| 1489 | = {ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_1, |
| 1490 | ASCII_6, ASCII_B, ASCII_E, '\0'}; |
| 1491 | static const char KW_UTF_16LE[] |
| 1492 | = {ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_1, |
| 1493 | ASCII_6, ASCII_L, ASCII_E, '\0'}; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1494 | |
| 1495 | static int FASTCALL |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1496 | getEncodingIndex(const char *name) { |
| 1497 | static const char *const encodingNames[] = { |
| 1498 | KW_ISO_8859_1, KW_US_ASCII, KW_UTF_8, KW_UTF_16, KW_UTF_16BE, KW_UTF_16LE, |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1499 | }; |
| 1500 | int i; |
| 1501 | if (name == NULL) |
| 1502 | return NO_ENC; |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1503 | for (i = 0; i < (int)(sizeof(encodingNames) / sizeof(encodingNames[0])); i++) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1504 | if (streqci(name, encodingNames[i])) |
| 1505 | return i; |
| 1506 | return UNKNOWN_ENC; |
| 1507 | } |
| 1508 | |
| 1509 | /* For binary compatibility, we store the index of the encoding |
| 1510 | specified at initialization in the isUtf16 member. |
| 1511 | */ |
| 1512 | |
| 1513 | #define INIT_ENC_INDEX(enc) ((int)(enc)->initEnc.isUtf16) |
| 1514 | #define SET_INIT_ENC_INDEX(enc, i) ((enc)->initEnc.isUtf16 = (char)i) |
| 1515 | |
| 1516 | /* This is what detects the encoding. encodingTable maps from |
| 1517 | encoding indices to encodings; INIT_ENC_INDEX(enc) is the index of |
| 1518 | the external (protocol) specified encoding; state is |
| 1519 | XML_CONTENT_STATE if we're parsing an external text entity, and |
| 1520 | XML_PROLOG_STATE otherwise. |
| 1521 | */ |
| 1522 | |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1523 | static int |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1524 | initScan(const ENCODING *const *encodingTable, const INIT_ENCODING *enc, |
| 1525 | int state, const char *ptr, const char *end, const char **nextTokPtr) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1526 | const ENCODING **encPtr; |
| 1527 | |
Paul Duffin | 7b64b72 | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1528 | if (ptr >= end) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1529 | return XML_TOK_NONE; |
| 1530 | encPtr = enc->encPtr; |
| 1531 | if (ptr + 1 == end) { |
| 1532 | /* only a single byte available for auto-detection */ |
| 1533 | #ifndef XML_DTD /* FIXME */ |
| 1534 | /* a well-formed document entity must have more than one byte */ |
| 1535 | if (state != XML_CONTENT_STATE) |
| 1536 | return XML_TOK_PARTIAL; |
| 1537 | #endif |
| 1538 | /* so we're parsing an external text entity... */ |
| 1539 | /* if UTF-16 was externally specified, then we need at least 2 bytes */ |
| 1540 | switch (INIT_ENC_INDEX(enc)) { |
| 1541 | case UTF_16_ENC: |
| 1542 | case UTF_16LE_ENC: |
| 1543 | case UTF_16BE_ENC: |
| 1544 | return XML_TOK_PARTIAL; |
| 1545 | } |
| 1546 | switch ((unsigned char)*ptr) { |
| 1547 | case 0xFE: |
| 1548 | case 0xFF: |
| 1549 | case 0xEF: /* possibly first byte of UTF-8 BOM */ |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1550 | if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC && state == XML_CONTENT_STATE) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1551 | break; |
| 1552 | /* fall through */ |
| 1553 | case 0x00: |
| 1554 | case 0x3C: |
| 1555 | return XML_TOK_PARTIAL; |
| 1556 | } |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1557 | } else { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1558 | switch (((unsigned char)ptr[0] << 8) | (unsigned char)ptr[1]) { |
| 1559 | case 0xFEFF: |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1560 | if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC && state == XML_CONTENT_STATE) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1561 | break; |
| 1562 | *nextTokPtr = ptr + 2; |
| 1563 | *encPtr = encodingTable[UTF_16BE_ENC]; |
| 1564 | return XML_TOK_BOM; |
| 1565 | /* 00 3C is handled in the default case */ |
| 1566 | case 0x3C00: |
| 1567 | if ((INIT_ENC_INDEX(enc) == UTF_16BE_ENC |
| 1568 | || INIT_ENC_INDEX(enc) == UTF_16_ENC) |
| 1569 | && state == XML_CONTENT_STATE) |
| 1570 | break; |
| 1571 | *encPtr = encodingTable[UTF_16LE_ENC]; |
| 1572 | return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
| 1573 | case 0xFFFE: |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1574 | if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC && state == XML_CONTENT_STATE) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1575 | break; |
| 1576 | *nextTokPtr = ptr + 2; |
| 1577 | *encPtr = encodingTable[UTF_16LE_ENC]; |
| 1578 | return XML_TOK_BOM; |
| 1579 | case 0xEFBB: |
| 1580 | /* Maybe a UTF-8 BOM (EF BB BF) */ |
| 1581 | /* If there's an explicitly specified (external) encoding |
| 1582 | of ISO-8859-1 or some flavour of UTF-16 |
| 1583 | and this is an external text entity, |
| 1584 | don't look for the BOM, |
| 1585 | because it might be a legal data. |
| 1586 | */ |
| 1587 | if (state == XML_CONTENT_STATE) { |
| 1588 | int e = INIT_ENC_INDEX(enc); |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1589 | if (e == ISO_8859_1_ENC || e == UTF_16BE_ENC || e == UTF_16LE_ENC |
| 1590 | || e == UTF_16_ENC) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1591 | break; |
| 1592 | } |
| 1593 | if (ptr + 2 == end) |
| 1594 | return XML_TOK_PARTIAL; |
| 1595 | if ((unsigned char)ptr[2] == 0xBF) { |
| 1596 | *nextTokPtr = ptr + 3; |
| 1597 | *encPtr = encodingTable[UTF_8_ENC]; |
| 1598 | return XML_TOK_BOM; |
| 1599 | } |
| 1600 | break; |
| 1601 | default: |
| 1602 | if (ptr[0] == '\0') { |
| 1603 | /* 0 isn't a legal data character. Furthermore a document |
| 1604 | entity can only start with ASCII characters. So the only |
| 1605 | way this can fail to be big-endian UTF-16 if it it's an |
| 1606 | external parsed general entity that's labelled as |
| 1607 | UTF-16LE. |
| 1608 | */ |
| 1609 | if (state == XML_CONTENT_STATE && INIT_ENC_INDEX(enc) == UTF_16LE_ENC) |
| 1610 | break; |
| 1611 | *encPtr = encodingTable[UTF_16BE_ENC]; |
| 1612 | return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1613 | } else if (ptr[1] == '\0') { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1614 | /* We could recover here in the case: |
| 1615 | - parsing an external entity |
| 1616 | - second byte is 0 |
| 1617 | - no externally specified encoding |
| 1618 | - no encoding declaration |
| 1619 | by assuming UTF-16LE. But we don't, because this would mean when |
| 1620 | presented just with a single byte, we couldn't reliably determine |
| 1621 | whether we needed further bytes. |
| 1622 | */ |
| 1623 | if (state == XML_CONTENT_STATE) |
| 1624 | break; |
| 1625 | *encPtr = encodingTable[UTF_16LE_ENC]; |
| 1626 | return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
| 1627 | } |
| 1628 | break; |
| 1629 | } |
| 1630 | } |
| 1631 | *encPtr = encodingTable[INIT_ENC_INDEX(enc)]; |
| 1632 | return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
| 1633 | } |
| 1634 | |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1635 | #define NS(x) x |
| 1636 | #define ns(x) x |
Elliott Hughes | d07d5a7 | 2009-09-25 16:04:37 -0700 | [diff] [blame] | 1637 | #define XML_TOK_NS_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1638 | #include "xmltok_ns.c" |
Elliott Hughes | d07d5a7 | 2009-09-25 16:04:37 -0700 | [diff] [blame] | 1639 | #undef XML_TOK_NS_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1640 | #undef NS |
| 1641 | #undef ns |
| 1642 | |
| 1643 | #ifdef XML_NS |
| 1644 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1645 | # define NS(x) x##NS |
| 1646 | # define ns(x) x##_ns |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1647 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1648 | # define XML_TOK_NS_C |
| 1649 | # include "xmltok_ns.c" |
| 1650 | # undef XML_TOK_NS_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1651 | |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1652 | # undef NS |
| 1653 | # undef ns |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1654 | |
| 1655 | ENCODING * |
Haibo Huang | 40a7191 | 2019-10-11 11:13:39 -0700 | [diff] [blame] | 1656 | XmlInitUnknownEncodingNS(void *mem, int *table, CONVERTER convert, |
| 1657 | void *userData) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1658 | ENCODING *enc = XmlInitUnknownEncoding(mem, table, convert, userData); |
| 1659 | if (enc) |
| 1660 | ((struct normal_encoding *)enc)->type[ASCII_COLON] = BT_COLON; |
| 1661 | return enc; |
| 1662 | } |
| 1663 | |
| 1664 | #endif /* XML_NS */ |