The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1 | /* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd |
| 2 | See the file COPYING for copying permission. |
| 3 | */ |
| 4 | |
| 5 | #include <stddef.h> |
| 6 | |
| 7 | #ifdef COMPILED_FROM_DSP |
| 8 | #include "winconfig.h" |
| 9 | #elif defined(MACOS_CLASSIC) |
| 10 | #include "macconfig.h" |
Elliott Hughes | 35e432d | 2012-09-09 14:23:38 -0700 | [diff] [blame] | 11 | #elif defined(__amigaos__) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 12 | #include "amigaconfig.h" |
Elliott Hughes | d07d5a7 | 2009-09-25 16:04:37 -0700 | [diff] [blame] | 13 | #elif defined(__WATCOMC__) |
| 14 | #include "watcomconfig.h" |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 15 | #else |
| 16 | #ifdef HAVE_EXPAT_CONFIG_H |
| 17 | #include <expat_config.h> |
| 18 | #endif |
| 19 | #endif /* ndef COMPILED_FROM_DSP */ |
| 20 | |
| 21 | #include "expat_external.h" |
| 22 | #include "internal.h" |
| 23 | #include "xmltok.h" |
| 24 | #include "nametab.h" |
| 25 | |
| 26 | #ifdef XML_DTD |
| 27 | #define IGNORE_SECTION_TOK_VTABLE , PREFIX(ignoreSectionTok) |
| 28 | #else |
| 29 | #define IGNORE_SECTION_TOK_VTABLE /* as nothing */ |
| 30 | #endif |
| 31 | |
| 32 | #define VTABLE1 \ |
| 33 | { PREFIX(prologTok), PREFIX(contentTok), \ |
| 34 | PREFIX(cdataSectionTok) IGNORE_SECTION_TOK_VTABLE }, \ |
| 35 | { PREFIX(attributeValueTok), PREFIX(entityValueTok) }, \ |
| 36 | PREFIX(sameName), \ |
| 37 | PREFIX(nameMatchesAscii), \ |
| 38 | PREFIX(nameLength), \ |
| 39 | PREFIX(skipS), \ |
| 40 | PREFIX(getAtts), \ |
| 41 | PREFIX(charRefNumber), \ |
| 42 | PREFIX(predefinedEntityName), \ |
| 43 | PREFIX(updatePosition), \ |
| 44 | PREFIX(isPublicId) |
| 45 | |
| 46 | #define VTABLE VTABLE1, PREFIX(toUtf8), PREFIX(toUtf16) |
| 47 | |
| 48 | #define UCS2_GET_NAMING(pages, hi, lo) \ |
| 49 | (namingBitmap[(pages[hi] << 3) + ((lo) >> 5)] & (1 << ((lo) & 0x1F))) |
| 50 | |
| 51 | /* A 2 byte UTF-8 representation splits the characters 11 bits between |
| 52 | the bottom 5 and 6 bits of the bytes. We need 8 bits to index into |
| 53 | pages, 3 bits to add to that index and 5 bits to generate the mask. |
| 54 | */ |
| 55 | #define UTF8_GET_NAMING2(pages, byte) \ |
| 56 | (namingBitmap[((pages)[(((byte)[0]) >> 2) & 7] << 3) \ |
| 57 | + ((((byte)[0]) & 3) << 1) \ |
| 58 | + ((((byte)[1]) >> 5) & 1)] \ |
| 59 | & (1 << (((byte)[1]) & 0x1F))) |
| 60 | |
| 61 | /* A 3 byte UTF-8 representation splits the characters 16 bits between |
| 62 | the bottom 4, 6 and 6 bits of the bytes. We need 8 bits to index |
| 63 | into pages, 3 bits to add to that index and 5 bits to generate the |
| 64 | mask. |
| 65 | */ |
| 66 | #define UTF8_GET_NAMING3(pages, byte) \ |
| 67 | (namingBitmap[((pages)[((((byte)[0]) & 0xF) << 4) \ |
| 68 | + ((((byte)[1]) >> 2) & 0xF)] \ |
| 69 | << 3) \ |
| 70 | + ((((byte)[1]) & 3) << 1) \ |
| 71 | + ((((byte)[2]) >> 5) & 1)] \ |
| 72 | & (1 << (((byte)[2]) & 0x1F))) |
| 73 | |
| 74 | #define UTF8_GET_NAMING(pages, p, n) \ |
| 75 | ((n) == 2 \ |
| 76 | ? UTF8_GET_NAMING2(pages, (const unsigned char *)(p)) \ |
| 77 | : ((n) == 3 \ |
| 78 | ? UTF8_GET_NAMING3(pages, (const unsigned char *)(p)) \ |
| 79 | : 0)) |
| 80 | |
| 81 | /* Detection of invalid UTF-8 sequences is based on Table 3.1B |
| 82 | of Unicode 3.2: http://www.unicode.org/unicode/reports/tr28/ |
| 83 | with the additional restriction of not allowing the Unicode |
| 84 | code points 0xFFFF and 0xFFFE (sequences EF,BF,BF and EF,BF,BE). |
| 85 | Implementation details: |
| 86 | (A & 0x80) == 0 means A < 0x80 |
| 87 | and |
| 88 | (A & 0xC0) == 0xC0 means A > 0xBF |
| 89 | */ |
| 90 | |
| 91 | #define UTF8_INVALID2(p) \ |
| 92 | ((*p) < 0xC2 || ((p)[1] & 0x80) == 0 || ((p)[1] & 0xC0) == 0xC0) |
| 93 | |
| 94 | #define UTF8_INVALID3(p) \ |
| 95 | (((p)[2] & 0x80) == 0 \ |
| 96 | || \ |
| 97 | ((*p) == 0xEF && (p)[1] == 0xBF \ |
| 98 | ? \ |
| 99 | (p)[2] > 0xBD \ |
| 100 | : \ |
| 101 | ((p)[2] & 0xC0) == 0xC0) \ |
| 102 | || \ |
| 103 | ((*p) == 0xE0 \ |
| 104 | ? \ |
| 105 | (p)[1] < 0xA0 || ((p)[1] & 0xC0) == 0xC0 \ |
| 106 | : \ |
| 107 | ((p)[1] & 0x80) == 0 \ |
| 108 | || \ |
| 109 | ((*p) == 0xED ? (p)[1] > 0x9F : ((p)[1] & 0xC0) == 0xC0))) |
| 110 | |
| 111 | #define UTF8_INVALID4(p) \ |
| 112 | (((p)[3] & 0x80) == 0 || ((p)[3] & 0xC0) == 0xC0 \ |
| 113 | || \ |
| 114 | ((p)[2] & 0x80) == 0 || ((p)[2] & 0xC0) == 0xC0 \ |
| 115 | || \ |
| 116 | ((*p) == 0xF0 \ |
| 117 | ? \ |
| 118 | (p)[1] < 0x90 || ((p)[1] & 0xC0) == 0xC0 \ |
| 119 | : \ |
| 120 | ((p)[1] & 0x80) == 0 \ |
| 121 | || \ |
| 122 | ((*p) == 0xF4 ? (p)[1] > 0x8F : ((p)[1] & 0xC0) == 0xC0))) |
| 123 | |
| 124 | static int PTRFASTCALL |
| 125 | isNever(const ENCODING *enc, const char *p) |
| 126 | { |
| 127 | return 0; |
| 128 | } |
| 129 | |
| 130 | static int PTRFASTCALL |
| 131 | utf8_isName2(const ENCODING *enc, const char *p) |
| 132 | { |
| 133 | return UTF8_GET_NAMING2(namePages, (const unsigned char *)p); |
| 134 | } |
| 135 | |
| 136 | static int PTRFASTCALL |
| 137 | utf8_isName3(const ENCODING *enc, const char *p) |
| 138 | { |
| 139 | return UTF8_GET_NAMING3(namePages, (const unsigned char *)p); |
| 140 | } |
| 141 | |
| 142 | #define utf8_isName4 isNever |
| 143 | |
| 144 | static int PTRFASTCALL |
| 145 | utf8_isNmstrt2(const ENCODING *enc, const char *p) |
| 146 | { |
| 147 | return UTF8_GET_NAMING2(nmstrtPages, (const unsigned char *)p); |
| 148 | } |
| 149 | |
| 150 | static int PTRFASTCALL |
| 151 | utf8_isNmstrt3(const ENCODING *enc, const char *p) |
| 152 | { |
| 153 | return UTF8_GET_NAMING3(nmstrtPages, (const unsigned char *)p); |
| 154 | } |
| 155 | |
| 156 | #define utf8_isNmstrt4 isNever |
| 157 | |
| 158 | static int PTRFASTCALL |
| 159 | utf8_isInvalid2(const ENCODING *enc, const char *p) |
| 160 | { |
| 161 | return UTF8_INVALID2((const unsigned char *)p); |
| 162 | } |
| 163 | |
| 164 | static int PTRFASTCALL |
| 165 | utf8_isInvalid3(const ENCODING *enc, const char *p) |
| 166 | { |
| 167 | return UTF8_INVALID3((const unsigned char *)p); |
| 168 | } |
| 169 | |
| 170 | static int PTRFASTCALL |
| 171 | utf8_isInvalid4(const ENCODING *enc, const char *p) |
| 172 | { |
| 173 | return UTF8_INVALID4((const unsigned char *)p); |
| 174 | } |
| 175 | |
| 176 | struct normal_encoding { |
| 177 | ENCODING enc; |
| 178 | unsigned char type[256]; |
| 179 | #ifdef XML_MIN_SIZE |
| 180 | int (PTRFASTCALL *byteType)(const ENCODING *, const char *); |
| 181 | int (PTRFASTCALL *isNameMin)(const ENCODING *, const char *); |
| 182 | int (PTRFASTCALL *isNmstrtMin)(const ENCODING *, const char *); |
| 183 | int (PTRFASTCALL *byteToAscii)(const ENCODING *, const char *); |
| 184 | int (PTRCALL *charMatches)(const ENCODING *, const char *, int); |
| 185 | #endif /* XML_MIN_SIZE */ |
| 186 | int (PTRFASTCALL *isName2)(const ENCODING *, const char *); |
| 187 | int (PTRFASTCALL *isName3)(const ENCODING *, const char *); |
| 188 | int (PTRFASTCALL *isName4)(const ENCODING *, const char *); |
| 189 | int (PTRFASTCALL *isNmstrt2)(const ENCODING *, const char *); |
| 190 | int (PTRFASTCALL *isNmstrt3)(const ENCODING *, const char *); |
| 191 | int (PTRFASTCALL *isNmstrt4)(const ENCODING *, const char *); |
| 192 | int (PTRFASTCALL *isInvalid2)(const ENCODING *, const char *); |
| 193 | int (PTRFASTCALL *isInvalid3)(const ENCODING *, const char *); |
| 194 | int (PTRFASTCALL *isInvalid4)(const ENCODING *, const char *); |
| 195 | }; |
| 196 | |
| 197 | #define AS_NORMAL_ENCODING(enc) ((const struct normal_encoding *) (enc)) |
| 198 | |
| 199 | #ifdef XML_MIN_SIZE |
| 200 | |
| 201 | #define STANDARD_VTABLE(E) \ |
| 202 | E ## byteType, \ |
| 203 | E ## isNameMin, \ |
| 204 | E ## isNmstrtMin, \ |
| 205 | E ## byteToAscii, \ |
| 206 | E ## charMatches, |
| 207 | |
| 208 | #else |
| 209 | |
| 210 | #define STANDARD_VTABLE(E) /* as nothing */ |
| 211 | |
| 212 | #endif |
| 213 | |
| 214 | #define NORMAL_VTABLE(E) \ |
| 215 | E ## isName2, \ |
| 216 | E ## isName3, \ |
| 217 | E ## isName4, \ |
| 218 | E ## isNmstrt2, \ |
| 219 | E ## isNmstrt3, \ |
| 220 | E ## isNmstrt4, \ |
| 221 | E ## isInvalid2, \ |
| 222 | E ## isInvalid3, \ |
| 223 | E ## isInvalid4 |
| 224 | |
| 225 | static int FASTCALL checkCharRefNumber(int); |
| 226 | |
| 227 | #include "xmltok_impl.h" |
| 228 | #include "ascii.h" |
| 229 | |
| 230 | #ifdef XML_MIN_SIZE |
| 231 | #define sb_isNameMin isNever |
| 232 | #define sb_isNmstrtMin isNever |
| 233 | #endif |
| 234 | |
| 235 | #ifdef XML_MIN_SIZE |
| 236 | #define MINBPC(enc) ((enc)->minBytesPerChar) |
| 237 | #else |
| 238 | /* minimum bytes per character */ |
| 239 | #define MINBPC(enc) 1 |
| 240 | #endif |
| 241 | |
| 242 | #define SB_BYTE_TYPE(enc, p) \ |
| 243 | (((struct normal_encoding *)(enc))->type[(unsigned char)*(p)]) |
| 244 | |
| 245 | #ifdef XML_MIN_SIZE |
| 246 | static int PTRFASTCALL |
| 247 | sb_byteType(const ENCODING *enc, const char *p) |
| 248 | { |
| 249 | return SB_BYTE_TYPE(enc, p); |
| 250 | } |
| 251 | #define BYTE_TYPE(enc, p) \ |
| 252 | (AS_NORMAL_ENCODING(enc)->byteType(enc, p)) |
| 253 | #else |
| 254 | #define BYTE_TYPE(enc, p) SB_BYTE_TYPE(enc, p) |
| 255 | #endif |
| 256 | |
| 257 | #ifdef XML_MIN_SIZE |
| 258 | #define BYTE_TO_ASCII(enc, p) \ |
| 259 | (AS_NORMAL_ENCODING(enc)->byteToAscii(enc, p)) |
| 260 | static int PTRFASTCALL |
| 261 | sb_byteToAscii(const ENCODING *enc, const char *p) |
| 262 | { |
| 263 | return *p; |
| 264 | } |
| 265 | #else |
| 266 | #define BYTE_TO_ASCII(enc, p) (*(p)) |
| 267 | #endif |
| 268 | |
| 269 | #define IS_NAME_CHAR(enc, p, n) \ |
| 270 | (AS_NORMAL_ENCODING(enc)->isName ## n(enc, p)) |
| 271 | #define IS_NMSTRT_CHAR(enc, p, n) \ |
| 272 | (AS_NORMAL_ENCODING(enc)->isNmstrt ## n(enc, p)) |
| 273 | #define IS_INVALID_CHAR(enc, p, n) \ |
| 274 | (AS_NORMAL_ENCODING(enc)->isInvalid ## n(enc, p)) |
| 275 | |
| 276 | #ifdef XML_MIN_SIZE |
| 277 | #define IS_NAME_CHAR_MINBPC(enc, p) \ |
| 278 | (AS_NORMAL_ENCODING(enc)->isNameMin(enc, p)) |
| 279 | #define IS_NMSTRT_CHAR_MINBPC(enc, p) \ |
| 280 | (AS_NORMAL_ENCODING(enc)->isNmstrtMin(enc, p)) |
| 281 | #else |
| 282 | #define IS_NAME_CHAR_MINBPC(enc, p) (0) |
| 283 | #define IS_NMSTRT_CHAR_MINBPC(enc, p) (0) |
| 284 | #endif |
| 285 | |
| 286 | #ifdef XML_MIN_SIZE |
| 287 | #define CHAR_MATCHES(enc, p, c) \ |
| 288 | (AS_NORMAL_ENCODING(enc)->charMatches(enc, p, c)) |
| 289 | static int PTRCALL |
| 290 | sb_charMatches(const ENCODING *enc, const char *p, int c) |
| 291 | { |
| 292 | return *p == c; |
| 293 | } |
| 294 | #else |
| 295 | /* c is an ASCII character */ |
| 296 | #define CHAR_MATCHES(enc, p, c) (*(p) == c) |
| 297 | #endif |
| 298 | |
| 299 | #define PREFIX(ident) normal_ ## ident |
Elliott Hughes | d07d5a7 | 2009-09-25 16:04:37 -0700 | [diff] [blame] | 300 | #define XML_TOK_IMPL_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 301 | #include "xmltok_impl.c" |
Elliott Hughes | d07d5a7 | 2009-09-25 16:04:37 -0700 | [diff] [blame] | 302 | #undef XML_TOK_IMPL_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 303 | |
| 304 | #undef MINBPC |
| 305 | #undef BYTE_TYPE |
| 306 | #undef BYTE_TO_ASCII |
| 307 | #undef CHAR_MATCHES |
| 308 | #undef IS_NAME_CHAR |
| 309 | #undef IS_NAME_CHAR_MINBPC |
| 310 | #undef IS_NMSTRT_CHAR |
| 311 | #undef IS_NMSTRT_CHAR_MINBPC |
| 312 | #undef IS_INVALID_CHAR |
| 313 | |
| 314 | enum { /* UTF8_cvalN is value of masked first byte of N byte sequence */ |
| 315 | UTF8_cval1 = 0x00, |
| 316 | UTF8_cval2 = 0xc0, |
| 317 | UTF8_cval3 = 0xe0, |
| 318 | UTF8_cval4 = 0xf0 |
| 319 | }; |
| 320 | |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 321 | static enum XML_Convert_Result PTRCALL |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 322 | utf8_toUtf8(const ENCODING *enc, |
| 323 | const char **fromP, const char *fromLim, |
| 324 | char **toP, const char *toLim) |
| 325 | { |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 326 | enum XML_Convert_Result res = XML_CONVERT_COMPLETED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 327 | char *to; |
| 328 | const char *from; |
| 329 | if (fromLim - *fromP > toLim - *toP) { |
| 330 | /* Avoid copying partial characters. */ |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 331 | res = XML_CONVERT_OUTPUT_EXHAUSTED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 332 | for (fromLim = *fromP + (toLim - *toP); fromLim > *fromP; fromLim--) |
| 333 | if (((unsigned char)fromLim[-1] & 0xc0) != 0x80) |
| 334 | break; |
| 335 | } |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 336 | for (to = *toP, from = *fromP; (from < fromLim) && (to < toLim); from++, to++) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 337 | *to = *from; |
| 338 | *fromP = from; |
| 339 | *toP = to; |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 340 | |
| 341 | if ((to == toLim) && (from < fromLim)) |
| 342 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
| 343 | else |
| 344 | return res; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 345 | } |
| 346 | |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 347 | static enum XML_Convert_Result PTRCALL |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 348 | utf8_toUtf16(const ENCODING *enc, |
| 349 | const char **fromP, const char *fromLim, |
| 350 | unsigned short **toP, const unsigned short *toLim) |
| 351 | { |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 352 | enum XML_Convert_Result res = XML_CONVERT_COMPLETED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 353 | unsigned short *to = *toP; |
| 354 | const char *from = *fromP; |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 355 | while (from < fromLim && to < toLim) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 356 | switch (((struct normal_encoding *)enc)->type[(unsigned char)*from]) { |
| 357 | case BT_LEAD2: |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 358 | if (fromLim - from < 2) { |
| 359 | res = XML_CONVERT_INPUT_INCOMPLETE; |
| 360 | break; |
| 361 | } |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 362 | *to++ = (unsigned short)(((from[0] & 0x1f) << 6) | (from[1] & 0x3f)); |
| 363 | from += 2; |
| 364 | break; |
| 365 | case BT_LEAD3: |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 366 | if (fromLim - from < 3) { |
| 367 | res = XML_CONVERT_INPUT_INCOMPLETE; |
| 368 | break; |
| 369 | } |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 370 | *to++ = (unsigned short)(((from[0] & 0xf) << 12) |
| 371 | | ((from[1] & 0x3f) << 6) | (from[2] & 0x3f)); |
| 372 | from += 3; |
| 373 | break; |
| 374 | case BT_LEAD4: |
| 375 | { |
| 376 | unsigned long n; |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 377 | if (toLim - to < 2) { |
| 378 | res = XML_CONVERT_OUTPUT_EXHAUSTED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 379 | goto after; |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 380 | } |
| 381 | if (fromLim - from < 4) { |
| 382 | res = XML_CONVERT_INPUT_INCOMPLETE; |
| 383 | goto after; |
| 384 | } |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 385 | n = ((from[0] & 0x7) << 18) | ((from[1] & 0x3f) << 12) |
| 386 | | ((from[2] & 0x3f) << 6) | (from[3] & 0x3f); |
| 387 | n -= 0x10000; |
| 388 | to[0] = (unsigned short)((n >> 10) | 0xD800); |
| 389 | to[1] = (unsigned short)((n & 0x3FF) | 0xDC00); |
| 390 | to += 2; |
| 391 | from += 4; |
| 392 | } |
| 393 | break; |
| 394 | default: |
| 395 | *to++ = *from++; |
| 396 | break; |
| 397 | } |
| 398 | } |
| 399 | after: |
| 400 | *fromP = from; |
| 401 | *toP = to; |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 402 | return res; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 403 | } |
| 404 | |
| 405 | #ifdef XML_NS |
| 406 | static const struct normal_encoding utf8_encoding_ns = { |
| 407 | { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
| 408 | { |
| 409 | #include "asciitab.h" |
| 410 | #include "utf8tab.h" |
| 411 | }, |
| 412 | STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
| 413 | }; |
| 414 | #endif |
| 415 | |
| 416 | static const struct normal_encoding utf8_encoding = { |
| 417 | { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
| 418 | { |
| 419 | #define BT_COLON BT_NMSTRT |
| 420 | #include "asciitab.h" |
| 421 | #undef BT_COLON |
| 422 | #include "utf8tab.h" |
| 423 | }, |
| 424 | STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
| 425 | }; |
| 426 | |
| 427 | #ifdef XML_NS |
| 428 | |
| 429 | static const struct normal_encoding internal_utf8_encoding_ns = { |
| 430 | { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
| 431 | { |
| 432 | #include "iasciitab.h" |
| 433 | #include "utf8tab.h" |
| 434 | }, |
| 435 | STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
| 436 | }; |
| 437 | |
| 438 | #endif |
| 439 | |
| 440 | static const struct normal_encoding internal_utf8_encoding = { |
| 441 | { VTABLE1, utf8_toUtf8, utf8_toUtf16, 1, 1, 0 }, |
| 442 | { |
| 443 | #define BT_COLON BT_NMSTRT |
| 444 | #include "iasciitab.h" |
| 445 | #undef BT_COLON |
| 446 | #include "utf8tab.h" |
| 447 | }, |
| 448 | STANDARD_VTABLE(sb_) NORMAL_VTABLE(utf8_) |
| 449 | }; |
| 450 | |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 451 | static enum XML_Convert_Result PTRCALL |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 452 | latin1_toUtf8(const ENCODING *enc, |
| 453 | const char **fromP, const char *fromLim, |
| 454 | char **toP, const char *toLim) |
| 455 | { |
| 456 | for (;;) { |
| 457 | unsigned char c; |
| 458 | if (*fromP == fromLim) |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 459 | return XML_CONVERT_COMPLETED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 460 | c = (unsigned char)**fromP; |
| 461 | if (c & 0x80) { |
| 462 | if (toLim - *toP < 2) |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 463 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 464 | *(*toP)++ = (char)((c >> 6) | UTF8_cval2); |
| 465 | *(*toP)++ = (char)((c & 0x3f) | 0x80); |
| 466 | (*fromP)++; |
| 467 | } |
| 468 | else { |
| 469 | if (*toP == toLim) |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 470 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 471 | *(*toP)++ = *(*fromP)++; |
| 472 | } |
| 473 | } |
| 474 | } |
| 475 | |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 476 | static enum XML_Convert_Result PTRCALL |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 477 | latin1_toUtf16(const ENCODING *enc, |
| 478 | const char **fromP, const char *fromLim, |
| 479 | unsigned short **toP, const unsigned short *toLim) |
| 480 | { |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 481 | while (*fromP < fromLim && *toP < toLim) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 482 | *(*toP)++ = (unsigned char)*(*fromP)++; |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 483 | |
| 484 | if ((*toP == toLim) && (*fromP < fromLim)) |
| 485 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
| 486 | else |
| 487 | return XML_CONVERT_COMPLETED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 488 | } |
| 489 | |
| 490 | #ifdef XML_NS |
| 491 | |
| 492 | static const struct normal_encoding latin1_encoding_ns = { |
| 493 | { VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0 }, |
| 494 | { |
| 495 | #include "asciitab.h" |
| 496 | #include "latin1tab.h" |
| 497 | }, |
| 498 | STANDARD_VTABLE(sb_) |
| 499 | }; |
| 500 | |
| 501 | #endif |
| 502 | |
| 503 | static const struct normal_encoding latin1_encoding = { |
| 504 | { VTABLE1, latin1_toUtf8, latin1_toUtf16, 1, 0, 0 }, |
| 505 | { |
| 506 | #define BT_COLON BT_NMSTRT |
| 507 | #include "asciitab.h" |
| 508 | #undef BT_COLON |
| 509 | #include "latin1tab.h" |
| 510 | }, |
| 511 | STANDARD_VTABLE(sb_) |
| 512 | }; |
| 513 | |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 514 | static enum XML_Convert_Result PTRCALL |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 515 | ascii_toUtf8(const ENCODING *enc, |
| 516 | const char **fromP, const char *fromLim, |
| 517 | char **toP, const char *toLim) |
| 518 | { |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 519 | while (*fromP < fromLim && *toP < toLim) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 520 | *(*toP)++ = *(*fromP)++; |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 521 | |
| 522 | if ((*toP == toLim) && (*fromP < fromLim)) |
| 523 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
| 524 | else |
| 525 | return XML_CONVERT_COMPLETED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 526 | } |
| 527 | |
| 528 | #ifdef XML_NS |
| 529 | |
| 530 | static const struct normal_encoding ascii_encoding_ns = { |
| 531 | { VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0 }, |
| 532 | { |
| 533 | #include "asciitab.h" |
| 534 | /* BT_NONXML == 0 */ |
| 535 | }, |
| 536 | STANDARD_VTABLE(sb_) |
| 537 | }; |
| 538 | |
| 539 | #endif |
| 540 | |
| 541 | static const struct normal_encoding ascii_encoding = { |
| 542 | { VTABLE1, ascii_toUtf8, latin1_toUtf16, 1, 1, 0 }, |
| 543 | { |
| 544 | #define BT_COLON BT_NMSTRT |
| 545 | #include "asciitab.h" |
| 546 | #undef BT_COLON |
| 547 | /* BT_NONXML == 0 */ |
| 548 | }, |
| 549 | STANDARD_VTABLE(sb_) |
| 550 | }; |
| 551 | |
| 552 | static int PTRFASTCALL |
| 553 | unicode_byte_type(char hi, char lo) |
| 554 | { |
| 555 | switch ((unsigned char)hi) { |
| 556 | case 0xD8: case 0xD9: case 0xDA: case 0xDB: |
| 557 | return BT_LEAD4; |
| 558 | case 0xDC: case 0xDD: case 0xDE: case 0xDF: |
| 559 | return BT_TRAIL; |
| 560 | case 0xFF: |
| 561 | switch ((unsigned char)lo) { |
| 562 | case 0xFF: |
| 563 | case 0xFE: |
| 564 | return BT_NONXML; |
| 565 | } |
| 566 | break; |
| 567 | } |
| 568 | return BT_NONASCII; |
| 569 | } |
| 570 | |
| 571 | #define DEFINE_UTF16_TO_UTF8(E) \ |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 572 | static enum XML_Convert_Result PTRCALL \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 573 | E ## toUtf8(const ENCODING *enc, \ |
| 574 | const char **fromP, const char *fromLim, \ |
| 575 | char **toP, const char *toLim) \ |
| 576 | { \ |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 577 | const char *from = *fromP; \ |
| 578 | fromLim = from + (((fromLim - from) >> 1) << 1); /* shrink to even */ \ |
| 579 | for (; from < fromLim; from += 2) { \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 580 | int plane; \ |
| 581 | unsigned char lo2; \ |
| 582 | unsigned char lo = GET_LO(from); \ |
| 583 | unsigned char hi = GET_HI(from); \ |
| 584 | switch (hi) { \ |
| 585 | case 0: \ |
| 586 | if (lo < 0x80) { \ |
| 587 | if (*toP == toLim) { \ |
| 588 | *fromP = from; \ |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 589 | return XML_CONVERT_OUTPUT_EXHAUSTED; \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 590 | } \ |
| 591 | *(*toP)++ = lo; \ |
| 592 | break; \ |
| 593 | } \ |
| 594 | /* fall through */ \ |
| 595 | case 0x1: case 0x2: case 0x3: \ |
| 596 | case 0x4: case 0x5: case 0x6: case 0x7: \ |
| 597 | if (toLim - *toP < 2) { \ |
| 598 | *fromP = from; \ |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 599 | return XML_CONVERT_OUTPUT_EXHAUSTED; \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 600 | } \ |
| 601 | *(*toP)++ = ((lo >> 6) | (hi << 2) | UTF8_cval2); \ |
| 602 | *(*toP)++ = ((lo & 0x3f) | 0x80); \ |
| 603 | break; \ |
| 604 | default: \ |
| 605 | if (toLim - *toP < 3) { \ |
| 606 | *fromP = from; \ |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 607 | return XML_CONVERT_OUTPUT_EXHAUSTED; \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 608 | } \ |
| 609 | /* 16 bits divided 4, 6, 6 amongst 3 bytes */ \ |
| 610 | *(*toP)++ = ((hi >> 4) | UTF8_cval3); \ |
| 611 | *(*toP)++ = (((hi & 0xf) << 2) | (lo >> 6) | 0x80); \ |
| 612 | *(*toP)++ = ((lo & 0x3f) | 0x80); \ |
| 613 | break; \ |
| 614 | case 0xD8: case 0xD9: case 0xDA: case 0xDB: \ |
| 615 | if (toLim - *toP < 4) { \ |
| 616 | *fromP = from; \ |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 617 | return XML_CONVERT_OUTPUT_EXHAUSTED; \ |
| 618 | } \ |
| 619 | if (fromLim - from < 4) { \ |
| 620 | *fromP = from; \ |
| 621 | return XML_CONVERT_INPUT_INCOMPLETE; \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 622 | } \ |
| 623 | plane = (((hi & 0x3) << 2) | ((lo >> 6) & 0x3)) + 1; \ |
| 624 | *(*toP)++ = ((plane >> 2) | UTF8_cval4); \ |
| 625 | *(*toP)++ = (((lo >> 2) & 0xF) | ((plane & 0x3) << 4) | 0x80); \ |
| 626 | from += 2; \ |
| 627 | lo2 = GET_LO(from); \ |
| 628 | *(*toP)++ = (((lo & 0x3) << 4) \ |
| 629 | | ((GET_HI(from) & 0x3) << 2) \ |
| 630 | | (lo2 >> 6) \ |
| 631 | | 0x80); \ |
| 632 | *(*toP)++ = ((lo2 & 0x3f) | 0x80); \ |
| 633 | break; \ |
| 634 | } \ |
| 635 | } \ |
| 636 | *fromP = from; \ |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 637 | if (from < fromLim) \ |
| 638 | return XML_CONVERT_INPUT_INCOMPLETE; \ |
| 639 | else \ |
| 640 | return XML_CONVERT_COMPLETED; \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 641 | } |
| 642 | |
| 643 | #define DEFINE_UTF16_TO_UTF16(E) \ |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 644 | static enum XML_Convert_Result PTRCALL \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 645 | E ## toUtf16(const ENCODING *enc, \ |
| 646 | const char **fromP, const char *fromLim, \ |
| 647 | unsigned short **toP, const unsigned short *toLim) \ |
| 648 | { \ |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 649 | enum XML_Convert_Result res = XML_CONVERT_COMPLETED; \ |
| 650 | fromLim = *fromP + (((fromLim - *fromP) >> 1) << 1); /* shrink to even */ \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 651 | /* Avoid copying first half only of surrogate */ \ |
| 652 | if (fromLim - *fromP > ((toLim - *toP) << 1) \ |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 653 | && (GET_HI(fromLim - 2) & 0xF8) == 0xD8) { \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 654 | fromLim -= 2; \ |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 655 | res = XML_CONVERT_INPUT_INCOMPLETE; \ |
| 656 | } \ |
| 657 | for (; *fromP < fromLim && *toP < toLim; *fromP += 2) \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 658 | *(*toP)++ = (GET_HI(*fromP) << 8) | GET_LO(*fromP); \ |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 659 | if ((*toP == toLim) && (*fromP < fromLim)) \ |
| 660 | return XML_CONVERT_OUTPUT_EXHAUSTED; \ |
| 661 | else \ |
| 662 | return res; \ |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 663 | } |
| 664 | |
| 665 | #define SET2(ptr, ch) \ |
| 666 | (((ptr)[0] = ((ch) & 0xff)), ((ptr)[1] = ((ch) >> 8))) |
| 667 | #define GET_LO(ptr) ((unsigned char)(ptr)[0]) |
| 668 | #define GET_HI(ptr) ((unsigned char)(ptr)[1]) |
| 669 | |
| 670 | DEFINE_UTF16_TO_UTF8(little2_) |
| 671 | DEFINE_UTF16_TO_UTF16(little2_) |
| 672 | |
| 673 | #undef SET2 |
| 674 | #undef GET_LO |
| 675 | #undef GET_HI |
| 676 | |
| 677 | #define SET2(ptr, ch) \ |
| 678 | (((ptr)[0] = ((ch) >> 8)), ((ptr)[1] = ((ch) & 0xFF))) |
| 679 | #define GET_LO(ptr) ((unsigned char)(ptr)[1]) |
| 680 | #define GET_HI(ptr) ((unsigned char)(ptr)[0]) |
| 681 | |
| 682 | DEFINE_UTF16_TO_UTF8(big2_) |
| 683 | DEFINE_UTF16_TO_UTF16(big2_) |
| 684 | |
| 685 | #undef SET2 |
| 686 | #undef GET_LO |
| 687 | #undef GET_HI |
| 688 | |
| 689 | #define LITTLE2_BYTE_TYPE(enc, p) \ |
| 690 | ((p)[1] == 0 \ |
| 691 | ? ((struct normal_encoding *)(enc))->type[(unsigned char)*(p)] \ |
| 692 | : unicode_byte_type((p)[1], (p)[0])) |
| 693 | #define LITTLE2_BYTE_TO_ASCII(enc, p) ((p)[1] == 0 ? (p)[0] : -1) |
| 694 | #define LITTLE2_CHAR_MATCHES(enc, p, c) ((p)[1] == 0 && (p)[0] == c) |
| 695 | #define LITTLE2_IS_NAME_CHAR_MINBPC(enc, p) \ |
| 696 | UCS2_GET_NAMING(namePages, (unsigned char)p[1], (unsigned char)p[0]) |
| 697 | #define LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p) \ |
| 698 | UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[1], (unsigned char)p[0]) |
| 699 | |
| 700 | #ifdef XML_MIN_SIZE |
| 701 | |
| 702 | static int PTRFASTCALL |
| 703 | little2_byteType(const ENCODING *enc, const char *p) |
| 704 | { |
| 705 | return LITTLE2_BYTE_TYPE(enc, p); |
| 706 | } |
| 707 | |
| 708 | static int PTRFASTCALL |
| 709 | little2_byteToAscii(const ENCODING *enc, const char *p) |
| 710 | { |
| 711 | return LITTLE2_BYTE_TO_ASCII(enc, p); |
| 712 | } |
| 713 | |
| 714 | static int PTRCALL |
| 715 | little2_charMatches(const ENCODING *enc, const char *p, int c) |
| 716 | { |
| 717 | return LITTLE2_CHAR_MATCHES(enc, p, c); |
| 718 | } |
| 719 | |
| 720 | static int PTRFASTCALL |
| 721 | little2_isNameMin(const ENCODING *enc, const char *p) |
| 722 | { |
| 723 | return LITTLE2_IS_NAME_CHAR_MINBPC(enc, p); |
| 724 | } |
| 725 | |
| 726 | static int PTRFASTCALL |
| 727 | little2_isNmstrtMin(const ENCODING *enc, const char *p) |
| 728 | { |
| 729 | return LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p); |
| 730 | } |
| 731 | |
| 732 | #undef VTABLE |
| 733 | #define VTABLE VTABLE1, little2_toUtf8, little2_toUtf16 |
| 734 | |
| 735 | #else /* not XML_MIN_SIZE */ |
| 736 | |
| 737 | #undef PREFIX |
| 738 | #define PREFIX(ident) little2_ ## ident |
| 739 | #define MINBPC(enc) 2 |
| 740 | /* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */ |
| 741 | #define BYTE_TYPE(enc, p) LITTLE2_BYTE_TYPE(enc, p) |
| 742 | #define BYTE_TO_ASCII(enc, p) LITTLE2_BYTE_TO_ASCII(enc, p) |
| 743 | #define CHAR_MATCHES(enc, p, c) LITTLE2_CHAR_MATCHES(enc, p, c) |
| 744 | #define IS_NAME_CHAR(enc, p, n) 0 |
| 745 | #define IS_NAME_CHAR_MINBPC(enc, p) LITTLE2_IS_NAME_CHAR_MINBPC(enc, p) |
| 746 | #define IS_NMSTRT_CHAR(enc, p, n) (0) |
| 747 | #define IS_NMSTRT_CHAR_MINBPC(enc, p) LITTLE2_IS_NMSTRT_CHAR_MINBPC(enc, p) |
| 748 | |
Elliott Hughes | d07d5a7 | 2009-09-25 16:04:37 -0700 | [diff] [blame] | 749 | #define XML_TOK_IMPL_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 750 | #include "xmltok_impl.c" |
Elliott Hughes | d07d5a7 | 2009-09-25 16:04:37 -0700 | [diff] [blame] | 751 | #undef XML_TOK_IMPL_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 752 | |
| 753 | #undef MINBPC |
| 754 | #undef BYTE_TYPE |
| 755 | #undef BYTE_TO_ASCII |
| 756 | #undef CHAR_MATCHES |
| 757 | #undef IS_NAME_CHAR |
| 758 | #undef IS_NAME_CHAR_MINBPC |
| 759 | #undef IS_NMSTRT_CHAR |
| 760 | #undef IS_NMSTRT_CHAR_MINBPC |
| 761 | #undef IS_INVALID_CHAR |
| 762 | |
| 763 | #endif /* not XML_MIN_SIZE */ |
| 764 | |
| 765 | #ifdef XML_NS |
| 766 | |
| 767 | static const struct normal_encoding little2_encoding_ns = { |
| 768 | { VTABLE, 2, 0, |
| 769 | #if BYTEORDER == 1234 |
| 770 | 1 |
| 771 | #else |
| 772 | 0 |
| 773 | #endif |
| 774 | }, |
| 775 | { |
| 776 | #include "asciitab.h" |
| 777 | #include "latin1tab.h" |
| 778 | }, |
| 779 | STANDARD_VTABLE(little2_) |
| 780 | }; |
| 781 | |
| 782 | #endif |
| 783 | |
| 784 | static const struct normal_encoding little2_encoding = { |
| 785 | { VTABLE, 2, 0, |
| 786 | #if BYTEORDER == 1234 |
| 787 | 1 |
| 788 | #else |
| 789 | 0 |
| 790 | #endif |
| 791 | }, |
| 792 | { |
| 793 | #define BT_COLON BT_NMSTRT |
| 794 | #include "asciitab.h" |
| 795 | #undef BT_COLON |
| 796 | #include "latin1tab.h" |
| 797 | }, |
| 798 | STANDARD_VTABLE(little2_) |
| 799 | }; |
| 800 | |
| 801 | #if BYTEORDER != 4321 |
| 802 | |
| 803 | #ifdef XML_NS |
| 804 | |
| 805 | static const struct normal_encoding internal_little2_encoding_ns = { |
| 806 | { VTABLE, 2, 0, 1 }, |
| 807 | { |
| 808 | #include "iasciitab.h" |
| 809 | #include "latin1tab.h" |
| 810 | }, |
| 811 | STANDARD_VTABLE(little2_) |
| 812 | }; |
| 813 | |
| 814 | #endif |
| 815 | |
| 816 | static const struct normal_encoding internal_little2_encoding = { |
| 817 | { VTABLE, 2, 0, 1 }, |
| 818 | { |
| 819 | #define BT_COLON BT_NMSTRT |
| 820 | #include "iasciitab.h" |
| 821 | #undef BT_COLON |
| 822 | #include "latin1tab.h" |
| 823 | }, |
| 824 | STANDARD_VTABLE(little2_) |
| 825 | }; |
| 826 | |
| 827 | #endif |
| 828 | |
| 829 | |
| 830 | #define BIG2_BYTE_TYPE(enc, p) \ |
| 831 | ((p)[0] == 0 \ |
| 832 | ? ((struct normal_encoding *)(enc))->type[(unsigned char)(p)[1]] \ |
| 833 | : unicode_byte_type((p)[0], (p)[1])) |
| 834 | #define BIG2_BYTE_TO_ASCII(enc, p) ((p)[0] == 0 ? (p)[1] : -1) |
| 835 | #define BIG2_CHAR_MATCHES(enc, p, c) ((p)[0] == 0 && (p)[1] == c) |
| 836 | #define BIG2_IS_NAME_CHAR_MINBPC(enc, p) \ |
| 837 | UCS2_GET_NAMING(namePages, (unsigned char)p[0], (unsigned char)p[1]) |
| 838 | #define BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p) \ |
| 839 | UCS2_GET_NAMING(nmstrtPages, (unsigned char)p[0], (unsigned char)p[1]) |
| 840 | |
| 841 | #ifdef XML_MIN_SIZE |
| 842 | |
| 843 | static int PTRFASTCALL |
| 844 | big2_byteType(const ENCODING *enc, const char *p) |
| 845 | { |
| 846 | return BIG2_BYTE_TYPE(enc, p); |
| 847 | } |
| 848 | |
| 849 | static int PTRFASTCALL |
| 850 | big2_byteToAscii(const ENCODING *enc, const char *p) |
| 851 | { |
| 852 | return BIG2_BYTE_TO_ASCII(enc, p); |
| 853 | } |
| 854 | |
| 855 | static int PTRCALL |
| 856 | big2_charMatches(const ENCODING *enc, const char *p, int c) |
| 857 | { |
| 858 | return BIG2_CHAR_MATCHES(enc, p, c); |
| 859 | } |
| 860 | |
| 861 | static int PTRFASTCALL |
| 862 | big2_isNameMin(const ENCODING *enc, const char *p) |
| 863 | { |
| 864 | return BIG2_IS_NAME_CHAR_MINBPC(enc, p); |
| 865 | } |
| 866 | |
| 867 | static int PTRFASTCALL |
| 868 | big2_isNmstrtMin(const ENCODING *enc, const char *p) |
| 869 | { |
| 870 | return BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p); |
| 871 | } |
| 872 | |
| 873 | #undef VTABLE |
| 874 | #define VTABLE VTABLE1, big2_toUtf8, big2_toUtf16 |
| 875 | |
| 876 | #else /* not XML_MIN_SIZE */ |
| 877 | |
| 878 | #undef PREFIX |
| 879 | #define PREFIX(ident) big2_ ## ident |
| 880 | #define MINBPC(enc) 2 |
| 881 | /* CHAR_MATCHES is guaranteed to have MINBPC bytes available. */ |
| 882 | #define BYTE_TYPE(enc, p) BIG2_BYTE_TYPE(enc, p) |
| 883 | #define BYTE_TO_ASCII(enc, p) BIG2_BYTE_TO_ASCII(enc, p) |
| 884 | #define CHAR_MATCHES(enc, p, c) BIG2_CHAR_MATCHES(enc, p, c) |
| 885 | #define IS_NAME_CHAR(enc, p, n) 0 |
| 886 | #define IS_NAME_CHAR_MINBPC(enc, p) BIG2_IS_NAME_CHAR_MINBPC(enc, p) |
| 887 | #define IS_NMSTRT_CHAR(enc, p, n) (0) |
| 888 | #define IS_NMSTRT_CHAR_MINBPC(enc, p) BIG2_IS_NMSTRT_CHAR_MINBPC(enc, p) |
| 889 | |
Elliott Hughes | d07d5a7 | 2009-09-25 16:04:37 -0700 | [diff] [blame] | 890 | #define XML_TOK_IMPL_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 891 | #include "xmltok_impl.c" |
Elliott Hughes | d07d5a7 | 2009-09-25 16:04:37 -0700 | [diff] [blame] | 892 | #undef XML_TOK_IMPL_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 893 | |
| 894 | #undef MINBPC |
| 895 | #undef BYTE_TYPE |
| 896 | #undef BYTE_TO_ASCII |
| 897 | #undef CHAR_MATCHES |
| 898 | #undef IS_NAME_CHAR |
| 899 | #undef IS_NAME_CHAR_MINBPC |
| 900 | #undef IS_NMSTRT_CHAR |
| 901 | #undef IS_NMSTRT_CHAR_MINBPC |
| 902 | #undef IS_INVALID_CHAR |
| 903 | |
| 904 | #endif /* not XML_MIN_SIZE */ |
| 905 | |
| 906 | #ifdef XML_NS |
| 907 | |
| 908 | static const struct normal_encoding big2_encoding_ns = { |
| 909 | { VTABLE, 2, 0, |
| 910 | #if BYTEORDER == 4321 |
| 911 | 1 |
| 912 | #else |
| 913 | 0 |
| 914 | #endif |
| 915 | }, |
| 916 | { |
| 917 | #include "asciitab.h" |
| 918 | #include "latin1tab.h" |
| 919 | }, |
| 920 | STANDARD_VTABLE(big2_) |
| 921 | }; |
| 922 | |
| 923 | #endif |
| 924 | |
| 925 | static const struct normal_encoding big2_encoding = { |
| 926 | { VTABLE, 2, 0, |
| 927 | #if BYTEORDER == 4321 |
| 928 | 1 |
| 929 | #else |
| 930 | 0 |
| 931 | #endif |
| 932 | }, |
| 933 | { |
| 934 | #define BT_COLON BT_NMSTRT |
| 935 | #include "asciitab.h" |
| 936 | #undef BT_COLON |
| 937 | #include "latin1tab.h" |
| 938 | }, |
| 939 | STANDARD_VTABLE(big2_) |
| 940 | }; |
| 941 | |
| 942 | #if BYTEORDER != 1234 |
| 943 | |
| 944 | #ifdef XML_NS |
| 945 | |
| 946 | static const struct normal_encoding internal_big2_encoding_ns = { |
| 947 | { VTABLE, 2, 0, 1 }, |
| 948 | { |
| 949 | #include "iasciitab.h" |
| 950 | #include "latin1tab.h" |
| 951 | }, |
| 952 | STANDARD_VTABLE(big2_) |
| 953 | }; |
| 954 | |
| 955 | #endif |
| 956 | |
| 957 | static const struct normal_encoding internal_big2_encoding = { |
| 958 | { VTABLE, 2, 0, 1 }, |
| 959 | { |
| 960 | #define BT_COLON BT_NMSTRT |
| 961 | #include "iasciitab.h" |
| 962 | #undef BT_COLON |
| 963 | #include "latin1tab.h" |
| 964 | }, |
| 965 | STANDARD_VTABLE(big2_) |
| 966 | }; |
| 967 | |
| 968 | #endif |
| 969 | |
| 970 | #undef PREFIX |
| 971 | |
| 972 | static int FASTCALL |
| 973 | streqci(const char *s1, const char *s2) |
| 974 | { |
| 975 | for (;;) { |
| 976 | char c1 = *s1++; |
| 977 | char c2 = *s2++; |
| 978 | if (ASCII_a <= c1 && c1 <= ASCII_z) |
| 979 | c1 += ASCII_A - ASCII_a; |
| 980 | if (ASCII_a <= c2 && c2 <= ASCII_z) |
| 981 | c2 += ASCII_A - ASCII_a; |
| 982 | if (c1 != c2) |
| 983 | return 0; |
| 984 | if (!c1) |
| 985 | break; |
| 986 | } |
| 987 | return 1; |
| 988 | } |
| 989 | |
| 990 | static void PTRCALL |
| 991 | initUpdatePosition(const ENCODING *enc, const char *ptr, |
| 992 | const char *end, POSITION *pos) |
| 993 | { |
| 994 | normal_updatePosition(&utf8_encoding.enc, ptr, end, pos); |
| 995 | } |
| 996 | |
| 997 | static int |
| 998 | toAscii(const ENCODING *enc, const char *ptr, const char *end) |
| 999 | { |
| 1000 | char buf[1]; |
| 1001 | char *p = buf; |
| 1002 | XmlUtf8Convert(enc, &ptr, end, &p, p + 1); |
| 1003 | if (p == buf) |
| 1004 | return -1; |
| 1005 | else |
| 1006 | return buf[0]; |
| 1007 | } |
| 1008 | |
| 1009 | static int FASTCALL |
| 1010 | isSpace(int c) |
| 1011 | { |
| 1012 | switch (c) { |
| 1013 | case 0x20: |
| 1014 | case 0xD: |
| 1015 | case 0xA: |
| 1016 | case 0x9: |
| 1017 | return 1; |
| 1018 | } |
| 1019 | return 0; |
| 1020 | } |
| 1021 | |
| 1022 | /* Return 1 if there's just optional white space or there's an S |
| 1023 | followed by name=val. |
| 1024 | */ |
| 1025 | static int |
| 1026 | parsePseudoAttribute(const ENCODING *enc, |
| 1027 | const char *ptr, |
| 1028 | const char *end, |
| 1029 | const char **namePtr, |
| 1030 | const char **nameEndPtr, |
| 1031 | const char **valPtr, |
| 1032 | const char **nextTokPtr) |
| 1033 | { |
| 1034 | int c; |
| 1035 | char open; |
| 1036 | if (ptr == end) { |
| 1037 | *namePtr = NULL; |
| 1038 | return 1; |
| 1039 | } |
| 1040 | if (!isSpace(toAscii(enc, ptr, end))) { |
| 1041 | *nextTokPtr = ptr; |
| 1042 | return 0; |
| 1043 | } |
| 1044 | do { |
| 1045 | ptr += enc->minBytesPerChar; |
| 1046 | } while (isSpace(toAscii(enc, ptr, end))); |
| 1047 | if (ptr == end) { |
| 1048 | *namePtr = NULL; |
| 1049 | return 1; |
| 1050 | } |
| 1051 | *namePtr = ptr; |
| 1052 | for (;;) { |
| 1053 | c = toAscii(enc, ptr, end); |
| 1054 | if (c == -1) { |
| 1055 | *nextTokPtr = ptr; |
| 1056 | return 0; |
| 1057 | } |
| 1058 | if (c == ASCII_EQUALS) { |
| 1059 | *nameEndPtr = ptr; |
| 1060 | break; |
| 1061 | } |
| 1062 | if (isSpace(c)) { |
| 1063 | *nameEndPtr = ptr; |
| 1064 | do { |
| 1065 | ptr += enc->minBytesPerChar; |
| 1066 | } while (isSpace(c = toAscii(enc, ptr, end))); |
| 1067 | if (c != ASCII_EQUALS) { |
| 1068 | *nextTokPtr = ptr; |
| 1069 | return 0; |
| 1070 | } |
| 1071 | break; |
| 1072 | } |
| 1073 | ptr += enc->minBytesPerChar; |
| 1074 | } |
| 1075 | if (ptr == *namePtr) { |
| 1076 | *nextTokPtr = ptr; |
| 1077 | return 0; |
| 1078 | } |
| 1079 | ptr += enc->minBytesPerChar; |
| 1080 | c = toAscii(enc, ptr, end); |
| 1081 | while (isSpace(c)) { |
| 1082 | ptr += enc->minBytesPerChar; |
| 1083 | c = toAscii(enc, ptr, end); |
| 1084 | } |
| 1085 | if (c != ASCII_QUOT && c != ASCII_APOS) { |
| 1086 | *nextTokPtr = ptr; |
| 1087 | return 0; |
| 1088 | } |
| 1089 | open = (char)c; |
| 1090 | ptr += enc->minBytesPerChar; |
| 1091 | *valPtr = ptr; |
| 1092 | for (;; ptr += enc->minBytesPerChar) { |
| 1093 | c = toAscii(enc, ptr, end); |
| 1094 | if (c == open) |
| 1095 | break; |
| 1096 | if (!(ASCII_a <= c && c <= ASCII_z) |
| 1097 | && !(ASCII_A <= c && c <= ASCII_Z) |
| 1098 | && !(ASCII_0 <= c && c <= ASCII_9) |
| 1099 | && c != ASCII_PERIOD |
| 1100 | && c != ASCII_MINUS |
| 1101 | && c != ASCII_UNDERSCORE) { |
| 1102 | *nextTokPtr = ptr; |
| 1103 | return 0; |
| 1104 | } |
| 1105 | } |
| 1106 | *nextTokPtr = ptr + enc->minBytesPerChar; |
| 1107 | return 1; |
| 1108 | } |
| 1109 | |
| 1110 | static const char KW_version[] = { |
| 1111 | ASCII_v, ASCII_e, ASCII_r, ASCII_s, ASCII_i, ASCII_o, ASCII_n, '\0' |
| 1112 | }; |
| 1113 | |
| 1114 | static const char KW_encoding[] = { |
| 1115 | ASCII_e, ASCII_n, ASCII_c, ASCII_o, ASCII_d, ASCII_i, ASCII_n, ASCII_g, '\0' |
| 1116 | }; |
| 1117 | |
| 1118 | static const char KW_standalone[] = { |
| 1119 | ASCII_s, ASCII_t, ASCII_a, ASCII_n, ASCII_d, ASCII_a, ASCII_l, ASCII_o, |
| 1120 | ASCII_n, ASCII_e, '\0' |
| 1121 | }; |
| 1122 | |
| 1123 | static const char KW_yes[] = { |
| 1124 | ASCII_y, ASCII_e, ASCII_s, '\0' |
| 1125 | }; |
| 1126 | |
| 1127 | static const char KW_no[] = { |
| 1128 | ASCII_n, ASCII_o, '\0' |
| 1129 | }; |
| 1130 | |
| 1131 | static int |
| 1132 | doParseXmlDecl(const ENCODING *(*encodingFinder)(const ENCODING *, |
| 1133 | const char *, |
| 1134 | const char *), |
| 1135 | int isGeneralTextEntity, |
| 1136 | const ENCODING *enc, |
| 1137 | const char *ptr, |
| 1138 | const char *end, |
| 1139 | const char **badPtr, |
| 1140 | const char **versionPtr, |
| 1141 | const char **versionEndPtr, |
| 1142 | const char **encodingName, |
| 1143 | const ENCODING **encoding, |
| 1144 | int *standalone) |
| 1145 | { |
| 1146 | const char *val = NULL; |
| 1147 | const char *name = NULL; |
| 1148 | const char *nameEnd = NULL; |
| 1149 | ptr += 5 * enc->minBytesPerChar; |
| 1150 | end -= 2 * enc->minBytesPerChar; |
| 1151 | if (!parsePseudoAttribute(enc, ptr, end, &name, &nameEnd, &val, &ptr) |
| 1152 | || !name) { |
| 1153 | *badPtr = ptr; |
| 1154 | return 0; |
| 1155 | } |
| 1156 | if (!XmlNameMatchesAscii(enc, name, nameEnd, KW_version)) { |
| 1157 | if (!isGeneralTextEntity) { |
| 1158 | *badPtr = name; |
| 1159 | return 0; |
| 1160 | } |
| 1161 | } |
| 1162 | else { |
| 1163 | if (versionPtr) |
| 1164 | *versionPtr = val; |
| 1165 | if (versionEndPtr) |
| 1166 | *versionEndPtr = ptr; |
| 1167 | if (!parsePseudoAttribute(enc, ptr, end, &name, &nameEnd, &val, &ptr)) { |
| 1168 | *badPtr = ptr; |
| 1169 | return 0; |
| 1170 | } |
| 1171 | if (!name) { |
| 1172 | if (isGeneralTextEntity) { |
| 1173 | /* a TextDecl must have an EncodingDecl */ |
| 1174 | *badPtr = ptr; |
| 1175 | return 0; |
| 1176 | } |
| 1177 | return 1; |
| 1178 | } |
| 1179 | } |
| 1180 | if (XmlNameMatchesAscii(enc, name, nameEnd, KW_encoding)) { |
| 1181 | int c = toAscii(enc, val, end); |
| 1182 | if (!(ASCII_a <= c && c <= ASCII_z) && !(ASCII_A <= c && c <= ASCII_Z)) { |
| 1183 | *badPtr = val; |
| 1184 | return 0; |
| 1185 | } |
| 1186 | if (encodingName) |
| 1187 | *encodingName = val; |
| 1188 | if (encoding) |
| 1189 | *encoding = encodingFinder(enc, val, ptr - enc->minBytesPerChar); |
| 1190 | if (!parsePseudoAttribute(enc, ptr, end, &name, &nameEnd, &val, &ptr)) { |
| 1191 | *badPtr = ptr; |
| 1192 | return 0; |
| 1193 | } |
| 1194 | if (!name) |
| 1195 | return 1; |
| 1196 | } |
| 1197 | if (!XmlNameMatchesAscii(enc, name, nameEnd, KW_standalone) |
| 1198 | || isGeneralTextEntity) { |
| 1199 | *badPtr = name; |
| 1200 | return 0; |
| 1201 | } |
| 1202 | if (XmlNameMatchesAscii(enc, val, ptr - enc->minBytesPerChar, KW_yes)) { |
| 1203 | if (standalone) |
| 1204 | *standalone = 1; |
| 1205 | } |
| 1206 | else if (XmlNameMatchesAscii(enc, val, ptr - enc->minBytesPerChar, KW_no)) { |
| 1207 | if (standalone) |
| 1208 | *standalone = 0; |
| 1209 | } |
| 1210 | else { |
| 1211 | *badPtr = val; |
| 1212 | return 0; |
| 1213 | } |
| 1214 | while (isSpace(toAscii(enc, ptr, end))) |
| 1215 | ptr += enc->minBytesPerChar; |
| 1216 | if (ptr != end) { |
| 1217 | *badPtr = ptr; |
| 1218 | return 0; |
| 1219 | } |
| 1220 | return 1; |
| 1221 | } |
| 1222 | |
| 1223 | static int FASTCALL |
| 1224 | checkCharRefNumber(int result) |
| 1225 | { |
| 1226 | switch (result >> 8) { |
| 1227 | case 0xD8: case 0xD9: case 0xDA: case 0xDB: |
| 1228 | case 0xDC: case 0xDD: case 0xDE: case 0xDF: |
| 1229 | return -1; |
| 1230 | case 0: |
| 1231 | if (latin1_encoding.type[result] == BT_NONXML) |
| 1232 | return -1; |
| 1233 | break; |
| 1234 | case 0xFF: |
| 1235 | if (result == 0xFFFE || result == 0xFFFF) |
| 1236 | return -1; |
| 1237 | break; |
| 1238 | } |
| 1239 | return result; |
| 1240 | } |
| 1241 | |
| 1242 | int FASTCALL |
| 1243 | XmlUtf8Encode(int c, char *buf) |
| 1244 | { |
| 1245 | enum { |
| 1246 | /* minN is minimum legal resulting value for N byte sequence */ |
| 1247 | min2 = 0x80, |
| 1248 | min3 = 0x800, |
| 1249 | min4 = 0x10000 |
| 1250 | }; |
| 1251 | |
| 1252 | if (c < 0) |
| 1253 | return 0; |
| 1254 | if (c < min2) { |
| 1255 | buf[0] = (char)(c | UTF8_cval1); |
| 1256 | return 1; |
| 1257 | } |
| 1258 | if (c < min3) { |
| 1259 | buf[0] = (char)((c >> 6) | UTF8_cval2); |
| 1260 | buf[1] = (char)((c & 0x3f) | 0x80); |
| 1261 | return 2; |
| 1262 | } |
| 1263 | if (c < min4) { |
| 1264 | buf[0] = (char)((c >> 12) | UTF8_cval3); |
| 1265 | buf[1] = (char)(((c >> 6) & 0x3f) | 0x80); |
| 1266 | buf[2] = (char)((c & 0x3f) | 0x80); |
| 1267 | return 3; |
| 1268 | } |
| 1269 | if (c < 0x110000) { |
| 1270 | buf[0] = (char)((c >> 18) | UTF8_cval4); |
| 1271 | buf[1] = (char)(((c >> 12) & 0x3f) | 0x80); |
| 1272 | buf[2] = (char)(((c >> 6) & 0x3f) | 0x80); |
| 1273 | buf[3] = (char)((c & 0x3f) | 0x80); |
| 1274 | return 4; |
| 1275 | } |
| 1276 | return 0; |
| 1277 | } |
| 1278 | |
| 1279 | int FASTCALL |
| 1280 | XmlUtf16Encode(int charNum, unsigned short *buf) |
| 1281 | { |
| 1282 | if (charNum < 0) |
| 1283 | return 0; |
| 1284 | if (charNum < 0x10000) { |
| 1285 | buf[0] = (unsigned short)charNum; |
| 1286 | return 1; |
| 1287 | } |
| 1288 | if (charNum < 0x110000) { |
| 1289 | charNum -= 0x10000; |
| 1290 | buf[0] = (unsigned short)((charNum >> 10) + 0xD800); |
| 1291 | buf[1] = (unsigned short)((charNum & 0x3FF) + 0xDC00); |
| 1292 | return 2; |
| 1293 | } |
| 1294 | return 0; |
| 1295 | } |
| 1296 | |
| 1297 | struct unknown_encoding { |
| 1298 | struct normal_encoding normal; |
| 1299 | CONVERTER convert; |
| 1300 | void *userData; |
| 1301 | unsigned short utf16[256]; |
| 1302 | char utf8[256][4]; |
| 1303 | }; |
| 1304 | |
| 1305 | #define AS_UNKNOWN_ENCODING(enc) ((const struct unknown_encoding *) (enc)) |
| 1306 | |
| 1307 | int |
| 1308 | XmlSizeOfUnknownEncoding(void) |
| 1309 | { |
| 1310 | return sizeof(struct unknown_encoding); |
| 1311 | } |
| 1312 | |
| 1313 | static int PTRFASTCALL |
| 1314 | unknown_isName(const ENCODING *enc, const char *p) |
| 1315 | { |
| 1316 | const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc); |
| 1317 | int c = uenc->convert(uenc->userData, p); |
| 1318 | if (c & ~0xFFFF) |
| 1319 | return 0; |
| 1320 | return UCS2_GET_NAMING(namePages, c >> 8, c & 0xFF); |
| 1321 | } |
| 1322 | |
| 1323 | static int PTRFASTCALL |
| 1324 | unknown_isNmstrt(const ENCODING *enc, const char *p) |
| 1325 | { |
| 1326 | const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc); |
| 1327 | int c = uenc->convert(uenc->userData, p); |
| 1328 | if (c & ~0xFFFF) |
| 1329 | return 0; |
| 1330 | return UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xFF); |
| 1331 | } |
| 1332 | |
| 1333 | static int PTRFASTCALL |
| 1334 | unknown_isInvalid(const ENCODING *enc, const char *p) |
| 1335 | { |
| 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 | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1341 | static enum XML_Convert_Result PTRCALL |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1342 | unknown_toUtf8(const ENCODING *enc, |
| 1343 | const char **fromP, const char *fromLim, |
| 1344 | char **toP, const char *toLim) |
| 1345 | { |
| 1346 | const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc); |
| 1347 | char buf[XML_UTF8_ENCODE_MAX]; |
| 1348 | for (;;) { |
| 1349 | const char *utf8; |
| 1350 | int n; |
| 1351 | if (*fromP == fromLim) |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1352 | return XML_CONVERT_COMPLETED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1353 | utf8 = uenc->utf8[(unsigned char)**fromP]; |
| 1354 | n = *utf8++; |
| 1355 | if (n == 0) { |
| 1356 | int c = uenc->convert(uenc->userData, *fromP); |
| 1357 | n = XmlUtf8Encode(c, buf); |
| 1358 | if (n > toLim - *toP) |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1359 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1360 | utf8 = buf; |
| 1361 | *fromP += (AS_NORMAL_ENCODING(enc)->type[(unsigned char)**fromP] |
| 1362 | - (BT_LEAD2 - 2)); |
| 1363 | } |
| 1364 | else { |
| 1365 | if (n > toLim - *toP) |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1366 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1367 | (*fromP)++; |
| 1368 | } |
| 1369 | do { |
| 1370 | *(*toP)++ = *utf8++; |
| 1371 | } while (--n != 0); |
| 1372 | } |
| 1373 | } |
| 1374 | |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1375 | static enum XML_Convert_Result PTRCALL |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1376 | unknown_toUtf16(const ENCODING *enc, |
| 1377 | const char **fromP, const char *fromLim, |
| 1378 | unsigned short **toP, const unsigned short *toLim) |
| 1379 | { |
| 1380 | const struct unknown_encoding *uenc = AS_UNKNOWN_ENCODING(enc); |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1381 | while (*fromP < fromLim && *toP < toLim) { |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1382 | unsigned short c = uenc->utf16[(unsigned char)**fromP]; |
| 1383 | if (c == 0) { |
| 1384 | c = (unsigned short) |
| 1385 | uenc->convert(uenc->userData, *fromP); |
| 1386 | *fromP += (AS_NORMAL_ENCODING(enc)->type[(unsigned char)**fromP] |
| 1387 | - (BT_LEAD2 - 2)); |
| 1388 | } |
| 1389 | else |
| 1390 | (*fromP)++; |
| 1391 | *(*toP)++ = c; |
| 1392 | } |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1393 | |
| 1394 | if ((*toP == toLim) && (*fromP < fromLim)) |
| 1395 | return XML_CONVERT_OUTPUT_EXHAUSTED; |
| 1396 | else |
| 1397 | return XML_CONVERT_COMPLETED; |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1398 | } |
| 1399 | |
| 1400 | ENCODING * |
| 1401 | XmlInitUnknownEncoding(void *mem, |
| 1402 | int *table, |
Elliott Hughes | 35e432d | 2012-09-09 14:23:38 -0700 | [diff] [blame] | 1403 | CONVERTER convert, |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1404 | void *userData) |
| 1405 | { |
| 1406 | int i; |
| 1407 | struct unknown_encoding *e = (struct unknown_encoding *)mem; |
| 1408 | for (i = 0; i < (int)sizeof(struct normal_encoding); i++) |
| 1409 | ((char *)mem)[i] = ((char *)&latin1_encoding)[i]; |
| 1410 | for (i = 0; i < 128; i++) |
| 1411 | if (latin1_encoding.type[i] != BT_OTHER |
| 1412 | && latin1_encoding.type[i] != BT_NONXML |
| 1413 | && table[i] != i) |
| 1414 | return 0; |
| 1415 | for (i = 0; i < 256; i++) { |
| 1416 | int c = table[i]; |
| 1417 | if (c == -1) { |
| 1418 | e->normal.type[i] = BT_MALFORM; |
| 1419 | /* This shouldn't really get used. */ |
| 1420 | e->utf16[i] = 0xFFFF; |
| 1421 | e->utf8[i][0] = 1; |
| 1422 | e->utf8[i][1] = 0; |
| 1423 | } |
| 1424 | else if (c < 0) { |
| 1425 | if (c < -4) |
| 1426 | return 0; |
| 1427 | e->normal.type[i] = (unsigned char)(BT_LEAD2 - (c + 2)); |
| 1428 | e->utf8[i][0] = 0; |
| 1429 | e->utf16[i] = 0; |
| 1430 | } |
| 1431 | else if (c < 0x80) { |
| 1432 | if (latin1_encoding.type[c] != BT_OTHER |
| 1433 | && latin1_encoding.type[c] != BT_NONXML |
| 1434 | && c != i) |
| 1435 | return 0; |
| 1436 | e->normal.type[i] = latin1_encoding.type[c]; |
| 1437 | e->utf8[i][0] = 1; |
| 1438 | e->utf8[i][1] = (char)c; |
| 1439 | e->utf16[i] = (unsigned short)(c == 0 ? 0xFFFF : c); |
| 1440 | } |
| 1441 | else if (checkCharRefNumber(c) < 0) { |
| 1442 | e->normal.type[i] = BT_NONXML; |
| 1443 | /* This shouldn't really get used. */ |
| 1444 | e->utf16[i] = 0xFFFF; |
| 1445 | e->utf8[i][0] = 1; |
| 1446 | e->utf8[i][1] = 0; |
| 1447 | } |
| 1448 | else { |
| 1449 | if (c > 0xFFFF) |
| 1450 | return 0; |
| 1451 | if (UCS2_GET_NAMING(nmstrtPages, c >> 8, c & 0xff)) |
| 1452 | e->normal.type[i] = BT_NMSTRT; |
| 1453 | else if (UCS2_GET_NAMING(namePages, c >> 8, c & 0xff)) |
| 1454 | e->normal.type[i] = BT_NAME; |
| 1455 | else |
| 1456 | e->normal.type[i] = BT_OTHER; |
| 1457 | e->utf8[i][0] = (char)XmlUtf8Encode(c, e->utf8[i] + 1); |
| 1458 | e->utf16[i] = (unsigned short)c; |
| 1459 | } |
| 1460 | } |
| 1461 | e->userData = userData; |
| 1462 | e->convert = convert; |
| 1463 | if (convert) { |
| 1464 | e->normal.isName2 = unknown_isName; |
| 1465 | e->normal.isName3 = unknown_isName; |
| 1466 | e->normal.isName4 = unknown_isName; |
| 1467 | e->normal.isNmstrt2 = unknown_isNmstrt; |
| 1468 | e->normal.isNmstrt3 = unknown_isNmstrt; |
| 1469 | e->normal.isNmstrt4 = unknown_isNmstrt; |
| 1470 | e->normal.isInvalid2 = unknown_isInvalid; |
| 1471 | e->normal.isInvalid3 = unknown_isInvalid; |
| 1472 | e->normal.isInvalid4 = unknown_isInvalid; |
| 1473 | } |
| 1474 | e->normal.enc.utf8Convert = unknown_toUtf8; |
| 1475 | e->normal.enc.utf16Convert = unknown_toUtf16; |
| 1476 | return &(e->normal.enc); |
| 1477 | } |
| 1478 | |
| 1479 | /* If this enumeration is changed, getEncodingIndex and encodings |
| 1480 | must also be changed. */ |
| 1481 | enum { |
| 1482 | UNKNOWN_ENC = -1, |
| 1483 | ISO_8859_1_ENC = 0, |
| 1484 | US_ASCII_ENC, |
| 1485 | UTF_8_ENC, |
| 1486 | UTF_16_ENC, |
| 1487 | UTF_16BE_ENC, |
| 1488 | UTF_16LE_ENC, |
| 1489 | /* must match encodingNames up to here */ |
| 1490 | NO_ENC |
| 1491 | }; |
| 1492 | |
| 1493 | static const char KW_ISO_8859_1[] = { |
| 1494 | ASCII_I, ASCII_S, ASCII_O, ASCII_MINUS, ASCII_8, ASCII_8, ASCII_5, ASCII_9, |
| 1495 | ASCII_MINUS, ASCII_1, '\0' |
| 1496 | }; |
| 1497 | static const char KW_US_ASCII[] = { |
| 1498 | ASCII_U, ASCII_S, ASCII_MINUS, ASCII_A, ASCII_S, ASCII_C, ASCII_I, ASCII_I, |
| 1499 | '\0' |
| 1500 | }; |
| 1501 | static const char KW_UTF_8[] = { |
| 1502 | ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_8, '\0' |
| 1503 | }; |
| 1504 | static const char KW_UTF_16[] = { |
| 1505 | ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_1, ASCII_6, '\0' |
| 1506 | }; |
| 1507 | static const char KW_UTF_16BE[] = { |
| 1508 | ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_1, ASCII_6, ASCII_B, ASCII_E, |
| 1509 | '\0' |
| 1510 | }; |
| 1511 | static const char KW_UTF_16LE[] = { |
| 1512 | ASCII_U, ASCII_T, ASCII_F, ASCII_MINUS, ASCII_1, ASCII_6, ASCII_L, ASCII_E, |
| 1513 | '\0' |
| 1514 | }; |
| 1515 | |
| 1516 | static int FASTCALL |
| 1517 | getEncodingIndex(const char *name) |
| 1518 | { |
| 1519 | static const char * const encodingNames[] = { |
| 1520 | KW_ISO_8859_1, |
| 1521 | KW_US_ASCII, |
| 1522 | KW_UTF_8, |
| 1523 | KW_UTF_16, |
| 1524 | KW_UTF_16BE, |
| 1525 | KW_UTF_16LE, |
| 1526 | }; |
| 1527 | int i; |
| 1528 | if (name == NULL) |
| 1529 | return NO_ENC; |
| 1530 | for (i = 0; i < (int)(sizeof(encodingNames)/sizeof(encodingNames[0])); i++) |
| 1531 | if (streqci(name, encodingNames[i])) |
| 1532 | return i; |
| 1533 | return UNKNOWN_ENC; |
| 1534 | } |
| 1535 | |
| 1536 | /* For binary compatibility, we store the index of the encoding |
| 1537 | specified at initialization in the isUtf16 member. |
| 1538 | */ |
| 1539 | |
| 1540 | #define INIT_ENC_INDEX(enc) ((int)(enc)->initEnc.isUtf16) |
| 1541 | #define SET_INIT_ENC_INDEX(enc, i) ((enc)->initEnc.isUtf16 = (char)i) |
| 1542 | |
| 1543 | /* This is what detects the encoding. encodingTable maps from |
| 1544 | encoding indices to encodings; INIT_ENC_INDEX(enc) is the index of |
| 1545 | the external (protocol) specified encoding; state is |
| 1546 | XML_CONTENT_STATE if we're parsing an external text entity, and |
| 1547 | XML_PROLOG_STATE otherwise. |
| 1548 | */ |
| 1549 | |
| 1550 | |
| 1551 | static int |
| 1552 | initScan(const ENCODING * const *encodingTable, |
| 1553 | const INIT_ENCODING *enc, |
| 1554 | int state, |
| 1555 | const char *ptr, |
| 1556 | const char *end, |
| 1557 | const char **nextTokPtr) |
| 1558 | { |
| 1559 | const ENCODING **encPtr; |
| 1560 | |
Paul Duffin | da29e5d | 2016-05-13 12:35:25 +0100 | [diff] [blame] | 1561 | if (ptr >= end) |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1562 | return XML_TOK_NONE; |
| 1563 | encPtr = enc->encPtr; |
| 1564 | if (ptr + 1 == end) { |
| 1565 | /* only a single byte available for auto-detection */ |
| 1566 | #ifndef XML_DTD /* FIXME */ |
| 1567 | /* a well-formed document entity must have more than one byte */ |
| 1568 | if (state != XML_CONTENT_STATE) |
| 1569 | return XML_TOK_PARTIAL; |
| 1570 | #endif |
| 1571 | /* so we're parsing an external text entity... */ |
| 1572 | /* if UTF-16 was externally specified, then we need at least 2 bytes */ |
| 1573 | switch (INIT_ENC_INDEX(enc)) { |
| 1574 | case UTF_16_ENC: |
| 1575 | case UTF_16LE_ENC: |
| 1576 | case UTF_16BE_ENC: |
| 1577 | return XML_TOK_PARTIAL; |
| 1578 | } |
| 1579 | switch ((unsigned char)*ptr) { |
| 1580 | case 0xFE: |
| 1581 | case 0xFF: |
| 1582 | case 0xEF: /* possibly first byte of UTF-8 BOM */ |
| 1583 | if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC |
| 1584 | && state == XML_CONTENT_STATE) |
| 1585 | break; |
| 1586 | /* fall through */ |
| 1587 | case 0x00: |
| 1588 | case 0x3C: |
| 1589 | return XML_TOK_PARTIAL; |
| 1590 | } |
| 1591 | } |
| 1592 | else { |
| 1593 | switch (((unsigned char)ptr[0] << 8) | (unsigned char)ptr[1]) { |
| 1594 | case 0xFEFF: |
| 1595 | if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC |
| 1596 | && state == XML_CONTENT_STATE) |
| 1597 | break; |
| 1598 | *nextTokPtr = ptr + 2; |
| 1599 | *encPtr = encodingTable[UTF_16BE_ENC]; |
| 1600 | return XML_TOK_BOM; |
| 1601 | /* 00 3C is handled in the default case */ |
| 1602 | case 0x3C00: |
| 1603 | if ((INIT_ENC_INDEX(enc) == UTF_16BE_ENC |
| 1604 | || INIT_ENC_INDEX(enc) == UTF_16_ENC) |
| 1605 | && state == XML_CONTENT_STATE) |
| 1606 | break; |
| 1607 | *encPtr = encodingTable[UTF_16LE_ENC]; |
| 1608 | return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
| 1609 | case 0xFFFE: |
| 1610 | if (INIT_ENC_INDEX(enc) == ISO_8859_1_ENC |
| 1611 | && state == XML_CONTENT_STATE) |
| 1612 | break; |
| 1613 | *nextTokPtr = ptr + 2; |
| 1614 | *encPtr = encodingTable[UTF_16LE_ENC]; |
| 1615 | return XML_TOK_BOM; |
| 1616 | case 0xEFBB: |
| 1617 | /* Maybe a UTF-8 BOM (EF BB BF) */ |
| 1618 | /* If there's an explicitly specified (external) encoding |
| 1619 | of ISO-8859-1 or some flavour of UTF-16 |
| 1620 | and this is an external text entity, |
| 1621 | don't look for the BOM, |
| 1622 | because it might be a legal data. |
| 1623 | */ |
| 1624 | if (state == XML_CONTENT_STATE) { |
| 1625 | int e = INIT_ENC_INDEX(enc); |
| 1626 | if (e == ISO_8859_1_ENC || e == UTF_16BE_ENC |
| 1627 | || e == UTF_16LE_ENC || e == UTF_16_ENC) |
| 1628 | break; |
| 1629 | } |
| 1630 | if (ptr + 2 == end) |
| 1631 | return XML_TOK_PARTIAL; |
| 1632 | if ((unsigned char)ptr[2] == 0xBF) { |
| 1633 | *nextTokPtr = ptr + 3; |
| 1634 | *encPtr = encodingTable[UTF_8_ENC]; |
| 1635 | return XML_TOK_BOM; |
| 1636 | } |
| 1637 | break; |
| 1638 | default: |
| 1639 | if (ptr[0] == '\0') { |
| 1640 | /* 0 isn't a legal data character. Furthermore a document |
| 1641 | entity can only start with ASCII characters. So the only |
| 1642 | way this can fail to be big-endian UTF-16 if it it's an |
| 1643 | external parsed general entity that's labelled as |
| 1644 | UTF-16LE. |
| 1645 | */ |
| 1646 | if (state == XML_CONTENT_STATE && INIT_ENC_INDEX(enc) == UTF_16LE_ENC) |
| 1647 | break; |
| 1648 | *encPtr = encodingTable[UTF_16BE_ENC]; |
| 1649 | return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
| 1650 | } |
| 1651 | else if (ptr[1] == '\0') { |
| 1652 | /* We could recover here in the case: |
| 1653 | - parsing an external entity |
| 1654 | - second byte is 0 |
| 1655 | - no externally specified encoding |
| 1656 | - no encoding declaration |
| 1657 | by assuming UTF-16LE. But we don't, because this would mean when |
| 1658 | presented just with a single byte, we couldn't reliably determine |
| 1659 | whether we needed further bytes. |
| 1660 | */ |
| 1661 | if (state == XML_CONTENT_STATE) |
| 1662 | break; |
| 1663 | *encPtr = encodingTable[UTF_16LE_ENC]; |
| 1664 | return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
| 1665 | } |
| 1666 | break; |
| 1667 | } |
| 1668 | } |
| 1669 | *encPtr = encodingTable[INIT_ENC_INDEX(enc)]; |
| 1670 | return XmlTok(*encPtr, state, ptr, end, nextTokPtr); |
| 1671 | } |
| 1672 | |
| 1673 | |
| 1674 | #define NS(x) x |
| 1675 | #define ns(x) x |
Elliott Hughes | d07d5a7 | 2009-09-25 16:04:37 -0700 | [diff] [blame] | 1676 | #define XML_TOK_NS_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1677 | #include "xmltok_ns.c" |
Elliott Hughes | d07d5a7 | 2009-09-25 16:04:37 -0700 | [diff] [blame] | 1678 | #undef XML_TOK_NS_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1679 | #undef NS |
| 1680 | #undef ns |
| 1681 | |
| 1682 | #ifdef XML_NS |
| 1683 | |
| 1684 | #define NS(x) x ## NS |
| 1685 | #define ns(x) x ## _ns |
| 1686 | |
Elliott Hughes | d07d5a7 | 2009-09-25 16:04:37 -0700 | [diff] [blame] | 1687 | #define XML_TOK_NS_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1688 | #include "xmltok_ns.c" |
Elliott Hughes | d07d5a7 | 2009-09-25 16:04:37 -0700 | [diff] [blame] | 1689 | #undef XML_TOK_NS_C |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1690 | |
| 1691 | #undef NS |
| 1692 | #undef ns |
| 1693 | |
| 1694 | ENCODING * |
| 1695 | XmlInitUnknownEncodingNS(void *mem, |
| 1696 | int *table, |
Elliott Hughes | 35e432d | 2012-09-09 14:23:38 -0700 | [diff] [blame] | 1697 | CONVERTER convert, |
The Android Open Source Project | b80e287 | 2009-03-03 19:29:30 -0800 | [diff] [blame] | 1698 | void *userData) |
| 1699 | { |
| 1700 | ENCODING *enc = XmlInitUnknownEncoding(mem, table, convert, userData); |
| 1701 | if (enc) |
| 1702 | ((struct normal_encoding *)enc)->type[ASCII_COLON] = BT_COLON; |
| 1703 | return enc; |
| 1704 | } |
| 1705 | |
| 1706 | #endif /* XML_NS */ |