зеркало из https://github.com/mozilla/gecko-dev.git
1737 строки
39 KiB
C
1737 строки
39 KiB
C
/*
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The contents of this file are subject to the Mozilla Public License
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Version 1.0 (the "License"); you may not use this file except in
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compliance with the License. You may obtain a copy of the License at
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http://www.mozilla.org/MPL/
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Software distributed under the License is distributed on an "AS IS"
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basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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License for the specific language governing rights and limitations
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under the License.
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The Original Code is expat.
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The Initial Developer of the Original Code is James Clark.
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Portions created by James Clark are Copyright (C) 1998
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James Clark. All Rights Reserved.
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Contributor(s):
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*/
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#ifndef IS_INVALID_CHAR
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#define IS_INVALID_CHAR(enc, ptr, n) (0)
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#endif
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#define INVALID_LEAD_CASE(n, ptr, nextTokPtr) \
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case BT_LEAD ## n: \
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if (end - ptr < n) \
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return XML_TOK_PARTIAL_CHAR; \
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if (IS_INVALID_CHAR(enc, ptr, n)) { \
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*(nextTokPtr) = (ptr); \
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return XML_TOK_INVALID; \
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} \
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ptr += n; \
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break;
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#define INVALID_CASES(ptr, nextTokPtr) \
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INVALID_LEAD_CASE(2, ptr, nextTokPtr) \
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INVALID_LEAD_CASE(3, ptr, nextTokPtr) \
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INVALID_LEAD_CASE(4, ptr, nextTokPtr) \
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case BT_NONXML: \
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case BT_MALFORM: \
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case BT_TRAIL: \
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*(nextTokPtr) = (ptr); \
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return XML_TOK_INVALID;
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#define CHECK_NAME_CASE(n, enc, ptr, end, nextTokPtr) \
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case BT_LEAD ## n: \
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if (end - ptr < n) \
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return XML_TOK_PARTIAL_CHAR; \
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if (!IS_NAME_CHAR(enc, ptr, n)) { \
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*nextTokPtr = ptr; \
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return XML_TOK_INVALID; \
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} \
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ptr += n; \
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break;
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#define CHECK_NAME_CASES(enc, ptr, end, nextTokPtr) \
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case BT_NONASCII: \
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if (!IS_NAME_CHAR_MINBPC(enc, ptr)) { \
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*nextTokPtr = ptr; \
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return XML_TOK_INVALID; \
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} \
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case BT_NMSTRT: \
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case BT_HEX: \
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case BT_DIGIT: \
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case BT_NAME: \
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case BT_MINUS: \
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ptr += MINBPC(enc); \
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break; \
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CHECK_NAME_CASE(2, enc, ptr, end, nextTokPtr) \
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CHECK_NAME_CASE(3, enc, ptr, end, nextTokPtr) \
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CHECK_NAME_CASE(4, enc, ptr, end, nextTokPtr)
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#define CHECK_NMSTRT_CASE(n, enc, ptr, end, nextTokPtr) \
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case BT_LEAD ## n: \
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if (end - ptr < n) \
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return XML_TOK_PARTIAL_CHAR; \
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if (!IS_NMSTRT_CHAR(enc, ptr, n)) { \
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*nextTokPtr = ptr; \
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return XML_TOK_INVALID; \
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} \
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ptr += n; \
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break;
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#define CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr) \
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case BT_NONASCII: \
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if (!IS_NMSTRT_CHAR_MINBPC(enc, ptr)) { \
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*nextTokPtr = ptr; \
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return XML_TOK_INVALID; \
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} \
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case BT_NMSTRT: \
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case BT_HEX: \
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ptr += MINBPC(enc); \
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break; \
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CHECK_NMSTRT_CASE(2, enc, ptr, end, nextTokPtr) \
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CHECK_NMSTRT_CASE(3, enc, ptr, end, nextTokPtr) \
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CHECK_NMSTRT_CASE(4, enc, ptr, end, nextTokPtr)
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#ifndef PREFIX
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#define PREFIX(ident) ident
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#endif
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/* ptr points to character following "<!-" */
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static
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int PREFIX(scanComment)(const ENCODING *enc, const char *ptr, const char *end,
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const char **nextTokPtr)
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{
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if (ptr != end) {
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if (!CHAR_MATCHES(enc, ptr, '-')) {
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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ptr += MINBPC(enc);
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while (ptr != end) {
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switch (BYTE_TYPE(enc, ptr)) {
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INVALID_CASES(ptr, nextTokPtr)
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case BT_MINUS:
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if ((ptr += MINBPC(enc)) == end)
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return XML_TOK_PARTIAL;
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if (CHAR_MATCHES(enc, ptr, '-')) {
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if ((ptr += MINBPC(enc)) == end)
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return XML_TOK_PARTIAL;
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if (!CHAR_MATCHES(enc, ptr, '>')) {
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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*nextTokPtr = ptr + MINBPC(enc);
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return XML_TOK_COMMENT;
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}
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break;
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default:
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ptr += MINBPC(enc);
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break;
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}
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}
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}
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return XML_TOK_PARTIAL;
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}
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/* ptr points to character following "<!" */
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static
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int PREFIX(scanDecl)(const ENCODING *enc, const char *ptr, const char *end,
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const char **nextTokPtr)
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{
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if (ptr == end)
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return XML_TOK_PARTIAL;
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switch (BYTE_TYPE(enc, ptr)) {
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case BT_MINUS:
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return PREFIX(scanComment)(enc, ptr + MINBPC(enc), end, nextTokPtr);
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case BT_LSQB:
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*nextTokPtr = ptr + MINBPC(enc);
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return XML_TOK_COND_SECT_OPEN;
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case BT_NMSTRT:
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case BT_HEX:
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ptr += MINBPC(enc);
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break;
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default:
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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while (ptr != end) {
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switch (BYTE_TYPE(enc, ptr)) {
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case BT_PERCNT:
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if (ptr + MINBPC(enc) == end)
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return XML_TOK_PARTIAL;
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/* don't allow <!ENTITY% foo "whatever"> */
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switch (BYTE_TYPE(enc, ptr + MINBPC(enc))) {
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case BT_S: case BT_CR: case BT_LF: case BT_PERCNT:
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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/* fall through */
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case BT_S: case BT_CR: case BT_LF:
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*nextTokPtr = ptr;
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return XML_TOK_DECL_OPEN;
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case BT_NMSTRT:
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case BT_HEX:
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ptr += MINBPC(enc);
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break;
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default:
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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}
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return XML_TOK_PARTIAL;
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}
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static
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int PREFIX(checkPiTarget)(const ENCODING *enc, const char *ptr, const char *end, int *tokPtr)
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{
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int upper = 0;
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*tokPtr = XML_TOK_PI;
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if (end - ptr != MINBPC(enc)*3)
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return 1;
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switch (BYTE_TO_ASCII(enc, ptr)) {
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case 'x':
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break;
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case 'X':
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upper = 1;
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break;
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default:
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return 1;
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}
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ptr += MINBPC(enc);
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switch (BYTE_TO_ASCII(enc, ptr)) {
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case 'm':
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break;
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case 'M':
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upper = 1;
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break;
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default:
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return 1;
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}
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ptr += MINBPC(enc);
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switch (BYTE_TO_ASCII(enc, ptr)) {
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case 'l':
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break;
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case 'L':
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upper = 1;
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break;
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default:
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return 1;
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}
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if (upper)
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return 0;
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*tokPtr = XML_TOK_XML_DECL;
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return 1;
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}
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/* ptr points to character following "<?" */
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static
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int PREFIX(scanPi)(const ENCODING *enc, const char *ptr, const char *end,
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const char **nextTokPtr)
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{
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int tok;
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const char *target = ptr;
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if (ptr == end)
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return XML_TOK_PARTIAL;
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switch (BYTE_TYPE(enc, ptr)) {
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CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
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default:
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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while (ptr != end) {
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switch (BYTE_TYPE(enc, ptr)) {
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CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
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case BT_S: case BT_CR: case BT_LF:
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if (!PREFIX(checkPiTarget)(enc, target, ptr, &tok)) {
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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ptr += MINBPC(enc);
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while (ptr != end) {
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switch (BYTE_TYPE(enc, ptr)) {
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INVALID_CASES(ptr, nextTokPtr)
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case BT_QUEST:
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ptr += MINBPC(enc);
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if (ptr == end)
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return XML_TOK_PARTIAL;
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if (CHAR_MATCHES(enc, ptr, '>')) {
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*nextTokPtr = ptr + MINBPC(enc);
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return tok;
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}
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break;
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default:
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ptr += MINBPC(enc);
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break;
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}
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}
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return XML_TOK_PARTIAL;
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case BT_QUEST:
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if (!PREFIX(checkPiTarget)(enc, target, ptr, &tok)) {
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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ptr += MINBPC(enc);
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if (ptr == end)
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return XML_TOK_PARTIAL;
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if (CHAR_MATCHES(enc, ptr, '>')) {
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*nextTokPtr = ptr + MINBPC(enc);
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return tok;
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}
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/* fall through */
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default:
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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}
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return XML_TOK_PARTIAL;
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}
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static
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int PREFIX(scanCdataSection)(const ENCODING *enc, const char *ptr, const char *end,
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const char **nextTokPtr)
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{
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int i;
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/* CDATA[ */
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if (end - ptr < 6 * MINBPC(enc))
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return XML_TOK_PARTIAL;
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for (i = 0; i < 6; i++, ptr += MINBPC(enc)) {
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if (!CHAR_MATCHES(enc, ptr, "CDATA["[i])) {
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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}
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*nextTokPtr = ptr;
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return XML_TOK_CDATA_SECT_OPEN;
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}
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static
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int PREFIX(cdataSectionTok)(const ENCODING *enc, const char *ptr, const char *end,
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const char **nextTokPtr)
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{
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if (ptr == end)
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return XML_TOK_NONE;
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if (MINBPC(enc) > 1) {
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size_t n = end - ptr;
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if (n & (MINBPC(enc) - 1)) {
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n &= ~(MINBPC(enc) - 1);
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if (n == 0)
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return XML_TOK_PARTIAL;
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end = ptr + n;
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}
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}
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switch (BYTE_TYPE(enc, ptr)) {
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case BT_RSQB:
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ptr += MINBPC(enc);
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if (ptr == end)
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return XML_TOK_PARTIAL;
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if (!CHAR_MATCHES(enc, ptr, ']'))
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break;
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ptr += MINBPC(enc);
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if (ptr == end)
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return XML_TOK_PARTIAL;
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if (!CHAR_MATCHES(enc, ptr, '>')) {
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ptr -= MINBPC(enc);
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break;
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}
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*nextTokPtr = ptr + MINBPC(enc);
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return XML_TOK_CDATA_SECT_CLOSE;
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case BT_CR:
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ptr += MINBPC(enc);
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if (ptr == end)
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return XML_TOK_PARTIAL;
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if (BYTE_TYPE(enc, ptr) == BT_LF)
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ptr += MINBPC(enc);
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*nextTokPtr = ptr;
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return XML_TOK_DATA_NEWLINE;
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case BT_LF:
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*nextTokPtr = ptr + MINBPC(enc);
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return XML_TOK_DATA_NEWLINE;
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INVALID_CASES(ptr, nextTokPtr)
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default:
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ptr += MINBPC(enc);
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break;
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}
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while (ptr != end) {
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switch (BYTE_TYPE(enc, ptr)) {
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#define LEAD_CASE(n) \
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case BT_LEAD ## n: \
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if (end - ptr < n || IS_INVALID_CHAR(enc, ptr, n)) { \
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*nextTokPtr = ptr; \
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return XML_TOK_DATA_CHARS; \
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} \
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ptr += n; \
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break;
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LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
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#undef LEAD_CASE
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case BT_NONXML:
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case BT_MALFORM:
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case BT_TRAIL:
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case BT_CR:
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case BT_LF:
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case BT_RSQB:
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*nextTokPtr = ptr;
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return XML_TOK_DATA_CHARS;
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default:
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ptr += MINBPC(enc);
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break;
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}
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}
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*nextTokPtr = ptr;
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return XML_TOK_DATA_CHARS;
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}
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/* ptr points to character following "</" */
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static
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int PREFIX(scanEndTag)(const ENCODING *enc, const char *ptr, const char *end,
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const char **nextTokPtr)
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{
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if (ptr == end)
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return XML_TOK_PARTIAL;
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switch (BYTE_TYPE(enc, ptr)) {
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CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
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default:
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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while (ptr != end) {
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switch (BYTE_TYPE(enc, ptr)) {
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CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
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case BT_S: case BT_CR: case BT_LF:
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for (ptr += MINBPC(enc); ptr != end; ptr += MINBPC(enc)) {
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switch (BYTE_TYPE(enc, ptr)) {
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case BT_S: case BT_CR: case BT_LF:
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break;
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case BT_GT:
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*nextTokPtr = ptr + MINBPC(enc);
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return XML_TOK_END_TAG;
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default:
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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}
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return XML_TOK_PARTIAL;
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#ifdef XML_NS
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case BT_COLON:
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/* no need to check qname syntax here, since end-tag must match exactly */
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ptr += MINBPC(enc);
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break;
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#endif
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case BT_GT:
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*nextTokPtr = ptr + MINBPC(enc);
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return XML_TOK_END_TAG;
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default:
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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}
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return XML_TOK_PARTIAL;
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}
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/* ptr points to character following "&#X" */
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static
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int PREFIX(scanHexCharRef)(const ENCODING *enc, const char *ptr, const char *end,
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const char **nextTokPtr)
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{
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if (ptr != end) {
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switch (BYTE_TYPE(enc, ptr)) {
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case BT_DIGIT:
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case BT_HEX:
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break;
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default:
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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for (ptr += MINBPC(enc); ptr != end; ptr += MINBPC(enc)) {
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switch (BYTE_TYPE(enc, ptr)) {
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case BT_DIGIT:
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case BT_HEX:
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break;
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case BT_SEMI:
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*nextTokPtr = ptr + MINBPC(enc);
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return XML_TOK_CHAR_REF;
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default:
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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}
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}
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return XML_TOK_PARTIAL;
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}
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/* ptr points to character following "&#" */
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static
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int PREFIX(scanCharRef)(const ENCODING *enc, const char *ptr, const char *end,
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const char **nextTokPtr)
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{
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if (ptr != end) {
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if (CHAR_MATCHES(enc, ptr, 'x'))
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return PREFIX(scanHexCharRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
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switch (BYTE_TYPE(enc, ptr)) {
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case BT_DIGIT:
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break;
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default:
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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for (ptr += MINBPC(enc); ptr != end; ptr += MINBPC(enc)) {
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switch (BYTE_TYPE(enc, ptr)) {
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case BT_DIGIT:
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break;
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case BT_SEMI:
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*nextTokPtr = ptr + MINBPC(enc);
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return XML_TOK_CHAR_REF;
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default:
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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}
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}
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return XML_TOK_PARTIAL;
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}
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/* ptr points to character following "&" */
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|
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static
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int PREFIX(scanRef)(const ENCODING *enc, const char *ptr, const char *end,
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const char **nextTokPtr)
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{
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if (ptr == end)
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return XML_TOK_PARTIAL;
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switch (BYTE_TYPE(enc, ptr)) {
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CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
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case BT_NUM:
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return PREFIX(scanCharRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
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default:
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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while (ptr != end) {
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switch (BYTE_TYPE(enc, ptr)) {
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CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
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case BT_SEMI:
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*nextTokPtr = ptr + MINBPC(enc);
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return XML_TOK_ENTITY_REF;
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default:
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*nextTokPtr = ptr;
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return XML_TOK_INVALID;
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}
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}
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return XML_TOK_PARTIAL;
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}
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|
/* ptr points to character following first character of attribute name */
|
|
|
|
static
|
|
int PREFIX(scanAtts)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr)
|
|
{
|
|
#ifdef XML_NS
|
|
int hadColon = 0;
|
|
#endif
|
|
while (ptr != end) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
|
|
#ifdef XML_NS
|
|
case BT_COLON:
|
|
if (hadColon) {
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
hadColon = 1;
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
break;
|
|
#endif
|
|
case BT_S: case BT_CR: case BT_LF:
|
|
for (;;) {
|
|
int t;
|
|
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
t = BYTE_TYPE(enc, ptr);
|
|
if (t == BT_EQUALS)
|
|
break;
|
|
switch (t) {
|
|
case BT_S:
|
|
case BT_LF:
|
|
case BT_CR:
|
|
break;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
}
|
|
/* fall through */
|
|
case BT_EQUALS:
|
|
{
|
|
int open;
|
|
#ifdef XML_NS
|
|
hadColon = 0;
|
|
#endif
|
|
for (;;) {
|
|
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
open = BYTE_TYPE(enc, ptr);
|
|
if (open == BT_QUOT || open == BT_APOS)
|
|
break;
|
|
switch (open) {
|
|
case BT_S:
|
|
case BT_LF:
|
|
case BT_CR:
|
|
break;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
}
|
|
ptr += MINBPC(enc);
|
|
/* in attribute value */
|
|
for (;;) {
|
|
int t;
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
t = BYTE_TYPE(enc, ptr);
|
|
if (t == open)
|
|
break;
|
|
switch (t) {
|
|
INVALID_CASES(ptr, nextTokPtr)
|
|
case BT_AMP:
|
|
{
|
|
int tok = PREFIX(scanRef)(enc, ptr + MINBPC(enc), end, &ptr);
|
|
if (tok <= 0) {
|
|
if (tok == XML_TOK_INVALID)
|
|
*nextTokPtr = ptr;
|
|
return tok;
|
|
}
|
|
break;
|
|
}
|
|
case BT_LT:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
default:
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
}
|
|
}
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
case BT_S:
|
|
case BT_CR:
|
|
case BT_LF:
|
|
break;
|
|
case BT_SOL:
|
|
goto sol;
|
|
case BT_GT:
|
|
goto gt;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
/* ptr points to closing quote */
|
|
for (;;) {
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
|
|
case BT_S: case BT_CR: case BT_LF:
|
|
continue;
|
|
case BT_GT:
|
|
gt:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_START_TAG_WITH_ATTS;
|
|
case BT_SOL:
|
|
sol:
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
if (!CHAR_MATCHES(enc, ptr, '>')) {
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_EMPTY_ELEMENT_WITH_ATTS;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
}
|
|
return XML_TOK_PARTIAL;
|
|
}
|
|
|
|
/* ptr points to character following "<" */
|
|
|
|
static
|
|
int PREFIX(scanLt)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr)
|
|
{
|
|
#ifdef XML_NS
|
|
int hadColon;
|
|
#endif
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
|
|
case BT_EXCL:
|
|
if ((ptr += MINBPC(enc)) == end)
|
|
return XML_TOK_PARTIAL;
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
case BT_MINUS:
|
|
return PREFIX(scanComment)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
case BT_LSQB:
|
|
return PREFIX(scanCdataSection)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
}
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
case BT_QUEST:
|
|
return PREFIX(scanPi)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
case BT_SOL:
|
|
return PREFIX(scanEndTag)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
#ifdef XML_NS
|
|
hadColon = 0;
|
|
#endif
|
|
/* we have a start-tag */
|
|
while (ptr != end) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
|
|
#ifdef XML_NS
|
|
case BT_COLON:
|
|
if (hadColon) {
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
hadColon = 1;
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
break;
|
|
#endif
|
|
case BT_S: case BT_CR: case BT_LF:
|
|
{
|
|
ptr += MINBPC(enc);
|
|
while (ptr != end) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
|
|
case BT_GT:
|
|
goto gt;
|
|
case BT_SOL:
|
|
goto sol;
|
|
case BT_S: case BT_CR: case BT_LF:
|
|
ptr += MINBPC(enc);
|
|
continue;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
return PREFIX(scanAtts)(enc, ptr, end, nextTokPtr);
|
|
}
|
|
return XML_TOK_PARTIAL;
|
|
}
|
|
case BT_GT:
|
|
gt:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_START_TAG_NO_ATTS;
|
|
case BT_SOL:
|
|
sol:
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
if (!CHAR_MATCHES(enc, ptr, '>')) {
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_EMPTY_ELEMENT_NO_ATTS;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
}
|
|
return XML_TOK_PARTIAL;
|
|
}
|
|
|
|
static
|
|
int PREFIX(contentTok)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr)
|
|
{
|
|
if (ptr == end)
|
|
return XML_TOK_NONE;
|
|
if (MINBPC(enc) > 1) {
|
|
size_t n = end - ptr;
|
|
if (n & (MINBPC(enc) - 1)) {
|
|
n &= ~(MINBPC(enc) - 1);
|
|
if (n == 0)
|
|
return XML_TOK_PARTIAL;
|
|
end = ptr + n;
|
|
}
|
|
}
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
case BT_LT:
|
|
return PREFIX(scanLt)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
case BT_AMP:
|
|
return PREFIX(scanRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
case BT_CR:
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_TRAILING_CR;
|
|
if (BYTE_TYPE(enc, ptr) == BT_LF)
|
|
ptr += MINBPC(enc);
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_DATA_NEWLINE;
|
|
case BT_LF:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_DATA_NEWLINE;
|
|
case BT_RSQB:
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_TRAILING_RSQB;
|
|
if (!CHAR_MATCHES(enc, ptr, ']'))
|
|
break;
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_TRAILING_RSQB;
|
|
if (!CHAR_MATCHES(enc, ptr, '>')) {
|
|
ptr -= MINBPC(enc);
|
|
break;
|
|
}
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
INVALID_CASES(ptr, nextTokPtr)
|
|
default:
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
}
|
|
while (ptr != end) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
#define LEAD_CASE(n) \
|
|
case BT_LEAD ## n: \
|
|
if (end - ptr < n || IS_INVALID_CHAR(enc, ptr, n)) { \
|
|
*nextTokPtr = ptr; \
|
|
return XML_TOK_DATA_CHARS; \
|
|
} \
|
|
ptr += n; \
|
|
break;
|
|
LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
|
|
#undef LEAD_CASE
|
|
case BT_RSQB:
|
|
if (ptr + MINBPC(enc) != end) {
|
|
if (!CHAR_MATCHES(enc, ptr + MINBPC(enc), ']')) {
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
}
|
|
if (ptr + 2*MINBPC(enc) != end) {
|
|
if (!CHAR_MATCHES(enc, ptr + 2*MINBPC(enc), '>')) {
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
}
|
|
*nextTokPtr = ptr + 2*MINBPC(enc);
|
|
return XML_TOK_INVALID;
|
|
}
|
|
}
|
|
/* fall through */
|
|
case BT_AMP:
|
|
case BT_LT:
|
|
case BT_NONXML:
|
|
case BT_MALFORM:
|
|
case BT_TRAIL:
|
|
case BT_CR:
|
|
case BT_LF:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_DATA_CHARS;
|
|
default:
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
}
|
|
}
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_DATA_CHARS;
|
|
}
|
|
|
|
/* ptr points to character following "%" */
|
|
|
|
static
|
|
int PREFIX(scanPercent)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr)
|
|
{
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
|
|
case BT_S: case BT_LF: case BT_CR: case BT_PERCNT:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_PERCENT;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
while (ptr != end) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
|
|
case BT_SEMI:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_PARAM_ENTITY_REF;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
}
|
|
return XML_TOK_PARTIAL;
|
|
}
|
|
|
|
static
|
|
int PREFIX(scanPoundName)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr)
|
|
{
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
while (ptr != end) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
|
|
case BT_CR: case BT_LF: case BT_S:
|
|
case BT_RPAR: case BT_GT: case BT_PERCNT: case BT_VERBAR:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_POUND_NAME;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
}
|
|
return XML_TOK_PARTIAL;
|
|
}
|
|
|
|
static
|
|
int PREFIX(scanLit)(int open, const ENCODING *enc,
|
|
const char *ptr, const char *end,
|
|
const char **nextTokPtr)
|
|
{
|
|
while (ptr != end) {
|
|
int t = BYTE_TYPE(enc, ptr);
|
|
switch (t) {
|
|
INVALID_CASES(ptr, nextTokPtr)
|
|
case BT_QUOT:
|
|
case BT_APOS:
|
|
ptr += MINBPC(enc);
|
|
if (t != open)
|
|
break;
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
*nextTokPtr = ptr;
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
case BT_S: case BT_CR: case BT_LF:
|
|
case BT_GT: case BT_PERCNT: case BT_LSQB:
|
|
return XML_TOK_LITERAL;
|
|
default:
|
|
return XML_TOK_INVALID;
|
|
}
|
|
default:
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
}
|
|
}
|
|
return XML_TOK_PARTIAL;
|
|
}
|
|
|
|
static
|
|
int PREFIX(prologTok)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr)
|
|
{
|
|
int tok;
|
|
if (ptr == end)
|
|
return XML_TOK_NONE;
|
|
if (MINBPC(enc) > 1) {
|
|
size_t n = end - ptr;
|
|
if (n & (MINBPC(enc) - 1)) {
|
|
n &= ~(MINBPC(enc) - 1);
|
|
if (n == 0)
|
|
return XML_TOK_PARTIAL;
|
|
end = ptr + n;
|
|
}
|
|
}
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
case BT_QUOT:
|
|
return PREFIX(scanLit)(BT_QUOT, enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
case BT_APOS:
|
|
return PREFIX(scanLit)(BT_APOS, enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
case BT_LT:
|
|
{
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
case BT_EXCL:
|
|
return PREFIX(scanDecl)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
case BT_QUEST:
|
|
return PREFIX(scanPi)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
case BT_NMSTRT:
|
|
case BT_HEX:
|
|
case BT_NONASCII:
|
|
case BT_LEAD2:
|
|
case BT_LEAD3:
|
|
case BT_LEAD4:
|
|
*nextTokPtr = ptr - MINBPC(enc);
|
|
return XML_TOK_INSTANCE_START;
|
|
}
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
case BT_CR:
|
|
if (ptr + MINBPC(enc) == end)
|
|
return XML_TOK_TRAILING_CR;
|
|
/* fall through */
|
|
case BT_S: case BT_LF:
|
|
for (;;) {
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
break;
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
case BT_S: case BT_LF:
|
|
break;
|
|
case BT_CR:
|
|
/* don't split CR/LF pair */
|
|
if (ptr + MINBPC(enc) != end)
|
|
break;
|
|
/* fall through */
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_PROLOG_S;
|
|
}
|
|
}
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_PROLOG_S;
|
|
case BT_PERCNT:
|
|
return PREFIX(scanPercent)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
case BT_COMMA:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_COMMA;
|
|
case BT_LSQB:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_OPEN_BRACKET;
|
|
case BT_RSQB:
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
if (CHAR_MATCHES(enc, ptr, ']')) {
|
|
if (ptr + MINBPC(enc) == end)
|
|
return XML_TOK_PARTIAL;
|
|
if (CHAR_MATCHES(enc, ptr + MINBPC(enc), '>')) {
|
|
*nextTokPtr = ptr + 2*MINBPC(enc);
|
|
return XML_TOK_COND_SECT_CLOSE;
|
|
}
|
|
}
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_CLOSE_BRACKET;
|
|
case BT_LPAR:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_OPEN_PAREN;
|
|
case BT_RPAR:
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
case BT_AST:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_CLOSE_PAREN_ASTERISK;
|
|
case BT_QUEST:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_CLOSE_PAREN_QUESTION;
|
|
case BT_PLUS:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_CLOSE_PAREN_PLUS;
|
|
case BT_CR: case BT_LF: case BT_S:
|
|
case BT_GT: case BT_COMMA: case BT_VERBAR:
|
|
case BT_RPAR:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_CLOSE_PAREN;
|
|
}
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
case BT_VERBAR:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_OR;
|
|
case BT_GT:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_DECL_CLOSE;
|
|
case BT_NUM:
|
|
return PREFIX(scanPoundName)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
#define LEAD_CASE(n) \
|
|
case BT_LEAD ## n: \
|
|
if (end - ptr < n) \
|
|
return XML_TOK_PARTIAL_CHAR; \
|
|
if (IS_NMSTRT_CHAR(enc, ptr, n)) { \
|
|
ptr += n; \
|
|
tok = XML_TOK_NAME; \
|
|
break; \
|
|
} \
|
|
if (IS_NAME_CHAR(enc, ptr, n)) { \
|
|
ptr += n; \
|
|
tok = XML_TOK_NMTOKEN; \
|
|
break; \
|
|
} \
|
|
*nextTokPtr = ptr; \
|
|
return XML_TOK_INVALID;
|
|
LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
|
|
#undef LEAD_CASE
|
|
case BT_NMSTRT:
|
|
case BT_HEX:
|
|
tok = XML_TOK_NAME;
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
case BT_DIGIT:
|
|
case BT_NAME:
|
|
case BT_MINUS:
|
|
#ifdef XML_NS
|
|
case BT_COLON:
|
|
#endif
|
|
tok = XML_TOK_NMTOKEN;
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
case BT_NONASCII:
|
|
if (IS_NMSTRT_CHAR_MINBPC(enc, ptr)) {
|
|
ptr += MINBPC(enc);
|
|
tok = XML_TOK_NAME;
|
|
break;
|
|
}
|
|
if (IS_NAME_CHAR_MINBPC(enc, ptr)) {
|
|
ptr += MINBPC(enc);
|
|
tok = XML_TOK_NMTOKEN;
|
|
break;
|
|
}
|
|
/* fall through */
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
while (ptr != end) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
|
|
case BT_GT: case BT_RPAR: case BT_COMMA:
|
|
case BT_VERBAR: case BT_LSQB: case BT_PERCNT:
|
|
case BT_S: case BT_CR: case BT_LF:
|
|
*nextTokPtr = ptr;
|
|
return tok;
|
|
#ifdef XML_NS
|
|
case BT_COLON:
|
|
ptr += MINBPC(enc);
|
|
switch (tok) {
|
|
case XML_TOK_NAME:
|
|
if (ptr == end)
|
|
return XML_TOK_PARTIAL;
|
|
tok = XML_TOK_PREFIXED_NAME;
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
|
|
default:
|
|
tok = XML_TOK_NMTOKEN;
|
|
break;
|
|
}
|
|
break;
|
|
case XML_TOK_PREFIXED_NAME:
|
|
tok = XML_TOK_NMTOKEN;
|
|
break;
|
|
}
|
|
break;
|
|
#endif
|
|
case BT_PLUS:
|
|
if (tok == XML_TOK_NMTOKEN) {
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_NAME_PLUS;
|
|
case BT_AST:
|
|
if (tok == XML_TOK_NMTOKEN) {
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_NAME_ASTERISK;
|
|
case BT_QUEST:
|
|
if (tok == XML_TOK_NMTOKEN) {
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_NAME_QUESTION;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
}
|
|
return XML_TOK_PARTIAL;
|
|
}
|
|
|
|
static
|
|
int PREFIX(attributeValueTok)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr)
|
|
{
|
|
const char *start;
|
|
if (ptr == end)
|
|
return XML_TOK_NONE;
|
|
start = ptr;
|
|
while (ptr != end) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
#define LEAD_CASE(n) \
|
|
case BT_LEAD ## n: ptr += n; break;
|
|
LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
|
|
#undef LEAD_CASE
|
|
case BT_AMP:
|
|
if (ptr == start)
|
|
return PREFIX(scanRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_DATA_CHARS;
|
|
case BT_LT:
|
|
/* this is for inside entity references */
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
case BT_LF:
|
|
if (ptr == start) {
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_DATA_NEWLINE;
|
|
}
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_DATA_CHARS;
|
|
case BT_CR:
|
|
if (ptr == start) {
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_TRAILING_CR;
|
|
if (BYTE_TYPE(enc, ptr) == BT_LF)
|
|
ptr += MINBPC(enc);
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_DATA_NEWLINE;
|
|
}
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_DATA_CHARS;
|
|
case BT_S:
|
|
if (ptr == start) {
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_ATTRIBUTE_VALUE_S;
|
|
}
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_DATA_CHARS;
|
|
default:
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
}
|
|
}
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_DATA_CHARS;
|
|
}
|
|
|
|
static
|
|
int PREFIX(entityValueTok)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr)
|
|
{
|
|
const char *start;
|
|
if (ptr == end)
|
|
return XML_TOK_NONE;
|
|
start = ptr;
|
|
while (ptr != end) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
#define LEAD_CASE(n) \
|
|
case BT_LEAD ## n: ptr += n; break;
|
|
LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
|
|
#undef LEAD_CASE
|
|
case BT_AMP:
|
|
if (ptr == start)
|
|
return PREFIX(scanRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_DATA_CHARS;
|
|
case BT_PERCNT:
|
|
if (ptr == start)
|
|
return PREFIX(scanPercent)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_DATA_CHARS;
|
|
case BT_LF:
|
|
if (ptr == start) {
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_DATA_NEWLINE;
|
|
}
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_DATA_CHARS;
|
|
case BT_CR:
|
|
if (ptr == start) {
|
|
ptr += MINBPC(enc);
|
|
if (ptr == end)
|
|
return XML_TOK_TRAILING_CR;
|
|
if (BYTE_TYPE(enc, ptr) == BT_LF)
|
|
ptr += MINBPC(enc);
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_DATA_NEWLINE;
|
|
}
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_DATA_CHARS;
|
|
default:
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
}
|
|
}
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_DATA_CHARS;
|
|
}
|
|
|
|
static
|
|
int PREFIX(isPublicId)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **badPtr)
|
|
{
|
|
ptr += MINBPC(enc);
|
|
end -= MINBPC(enc);
|
|
for (; ptr != end; ptr += MINBPC(enc)) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
case BT_DIGIT:
|
|
case BT_HEX:
|
|
case BT_MINUS:
|
|
case BT_APOS:
|
|
case BT_LPAR:
|
|
case BT_RPAR:
|
|
case BT_PLUS:
|
|
case BT_COMMA:
|
|
case BT_SOL:
|
|
case BT_EQUALS:
|
|
case BT_QUEST:
|
|
case BT_CR:
|
|
case BT_LF:
|
|
case BT_SEMI:
|
|
case BT_EXCL:
|
|
case BT_AST:
|
|
case BT_PERCNT:
|
|
case BT_NUM:
|
|
#ifdef XML_NS
|
|
case BT_COLON:
|
|
#endif
|
|
break;
|
|
case BT_S:
|
|
if (CHAR_MATCHES(enc, ptr, '\t')) {
|
|
*badPtr = ptr;
|
|
return 0;
|
|
}
|
|
break;
|
|
case BT_NAME:
|
|
case BT_NMSTRT:
|
|
if (!(BYTE_TO_ASCII(enc, ptr) & ~0x7f))
|
|
break;
|
|
default:
|
|
switch (BYTE_TO_ASCII(enc, ptr)) {
|
|
case 0x24: /* $ */
|
|
case 0x40: /* @ */
|
|
break;
|
|
default:
|
|
*badPtr = ptr;
|
|
return 0;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* This must only be called for a well-formed start-tag or empty element tag.
|
|
Returns the number of attributes. Pointers to the first attsMax attributes
|
|
are stored in atts. */
|
|
|
|
static
|
|
int PREFIX(getAtts)(const ENCODING *enc, const char *ptr,
|
|
int attsMax, ATTRIBUTE *atts)
|
|
{
|
|
enum { other, inName, inValue } state = inName;
|
|
int nAtts = 0;
|
|
int open;
|
|
|
|
for (ptr += MINBPC(enc);; ptr += MINBPC(enc)) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
#define START_NAME \
|
|
if (state == other) { \
|
|
if (nAtts < attsMax) { \
|
|
atts[nAtts].name = ptr; \
|
|
atts[nAtts].normalized = 1; \
|
|
} \
|
|
state = inName; \
|
|
}
|
|
#define LEAD_CASE(n) \
|
|
case BT_LEAD ## n: START_NAME ptr += (n - MINBPC(enc)); break;
|
|
LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
|
|
#undef LEAD_CASE
|
|
case BT_NONASCII:
|
|
case BT_NMSTRT:
|
|
case BT_HEX:
|
|
START_NAME
|
|
break;
|
|
#undef START_NAME
|
|
case BT_QUOT:
|
|
if (state != inValue) {
|
|
if (nAtts < attsMax)
|
|
atts[nAtts].valuePtr = ptr + MINBPC(enc);
|
|
state = inValue;
|
|
open = BT_QUOT;
|
|
}
|
|
else if (open == BT_QUOT) {
|
|
state = other;
|
|
if (nAtts < attsMax)
|
|
atts[nAtts].valueEnd = ptr;
|
|
nAtts++;
|
|
}
|
|
break;
|
|
case BT_APOS:
|
|
if (state != inValue) {
|
|
if (nAtts < attsMax)
|
|
atts[nAtts].valuePtr = ptr + MINBPC(enc);
|
|
state = inValue;
|
|
open = BT_APOS;
|
|
}
|
|
else if (open == BT_APOS) {
|
|
state = other;
|
|
if (nAtts < attsMax)
|
|
atts[nAtts].valueEnd = ptr;
|
|
nAtts++;
|
|
}
|
|
break;
|
|
case BT_AMP:
|
|
if (nAtts < attsMax)
|
|
atts[nAtts].normalized = 0;
|
|
break;
|
|
case BT_S:
|
|
if (state == inName)
|
|
state = other;
|
|
else if (state == inValue
|
|
&& nAtts < attsMax
|
|
&& atts[nAtts].normalized
|
|
&& (ptr == atts[nAtts].valuePtr
|
|
|| BYTE_TO_ASCII(enc, ptr) != ' '
|
|
|| BYTE_TO_ASCII(enc, ptr + MINBPC(enc)) == ' '
|
|
|| BYTE_TYPE(enc, ptr + MINBPC(enc)) == open))
|
|
atts[nAtts].normalized = 0;
|
|
break;
|
|
case BT_CR: case BT_LF:
|
|
/* This case ensures that the first attribute name is counted
|
|
Apart from that we could just change state on the quote. */
|
|
if (state == inName)
|
|
state = other;
|
|
else if (state == inValue && nAtts < attsMax)
|
|
atts[nAtts].normalized = 0;
|
|
break;
|
|
case BT_GT:
|
|
case BT_SOL:
|
|
if (state != inValue)
|
|
return nAtts;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
/* not reached */
|
|
}
|
|
|
|
static
|
|
int PREFIX(charRefNumber)(const ENCODING *enc, const char *ptr)
|
|
{
|
|
int result = 0;
|
|
/* skip &# */
|
|
ptr += 2*MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, 'x')) {
|
|
for (ptr += MINBPC(enc); !CHAR_MATCHES(enc, ptr, ';'); ptr += MINBPC(enc)) {
|
|
int c = BYTE_TO_ASCII(enc, ptr);
|
|
switch (c) {
|
|
case '0': case '1': case '2': case '3': case '4':
|
|
case '5': case '6': case '7': case '8': case '9':
|
|
result <<= 4;
|
|
result |= (c - '0');
|
|
break;
|
|
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
|
|
result <<= 4;
|
|
result += 10 + (c - 'A');
|
|
break;
|
|
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
|
|
result <<= 4;
|
|
result += 10 + (c - 'a');
|
|
break;
|
|
}
|
|
if (result >= 0x110000)
|
|
return -1;
|
|
}
|
|
}
|
|
else {
|
|
for (; !CHAR_MATCHES(enc, ptr, ';'); ptr += MINBPC(enc)) {
|
|
int c = BYTE_TO_ASCII(enc, ptr);
|
|
result *= 10;
|
|
result += (c - '0');
|
|
if (result >= 0x110000)
|
|
return -1;
|
|
}
|
|
}
|
|
return checkCharRefNumber(result);
|
|
}
|
|
|
|
static
|
|
int PREFIX(predefinedEntityName)(const ENCODING *enc, const char *ptr, const char *end)
|
|
{
|
|
switch ((end - ptr)/MINBPC(enc)) {
|
|
case 2:
|
|
if (CHAR_MATCHES(enc, ptr + MINBPC(enc), 't')) {
|
|
switch (BYTE_TO_ASCII(enc, ptr)) {
|
|
case 'l':
|
|
return '<';
|
|
case 'g':
|
|
return '>';
|
|
}
|
|
}
|
|
break;
|
|
case 3:
|
|
if (CHAR_MATCHES(enc, ptr, 'a')) {
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, 'm')) {
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, 'p'))
|
|
return '&';
|
|
}
|
|
}
|
|
break;
|
|
case 4:
|
|
switch (BYTE_TO_ASCII(enc, ptr)) {
|
|
case 'q':
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, 'u')) {
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, 'o')) {
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, 't'))
|
|
return '"';
|
|
}
|
|
}
|
|
break;
|
|
case 'a':
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, 'p')) {
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, 'o')) {
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, 's'))
|
|
return '\'';
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static
|
|
int PREFIX(sameName)(const ENCODING *enc, const char *ptr1, const char *ptr2)
|
|
{
|
|
for (;;) {
|
|
switch (BYTE_TYPE(enc, ptr1)) {
|
|
#define LEAD_CASE(n) \
|
|
case BT_LEAD ## n: \
|
|
if (*ptr1++ != *ptr2++) \
|
|
return 0;
|
|
LEAD_CASE(4) LEAD_CASE(3) LEAD_CASE(2)
|
|
#undef LEAD_CASE
|
|
/* fall through */
|
|
if (*ptr1++ != *ptr2++)
|
|
return 0;
|
|
break;
|
|
case BT_NONASCII:
|
|
case BT_NMSTRT:
|
|
#ifdef XML_NS
|
|
case BT_COLON:
|
|
#endif
|
|
case BT_HEX:
|
|
case BT_DIGIT:
|
|
case BT_NAME:
|
|
case BT_MINUS:
|
|
if (*ptr2++ != *ptr1++)
|
|
return 0;
|
|
if (MINBPC(enc) > 1) {
|
|
if (*ptr2++ != *ptr1++)
|
|
return 0;
|
|
if (MINBPC(enc) > 2) {
|
|
if (*ptr2++ != *ptr1++)
|
|
return 0;
|
|
if (MINBPC(enc) > 3) {
|
|
if (*ptr2++ != *ptr1++)
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
if (MINBPC(enc) == 1 && *ptr1 == *ptr2)
|
|
return 1;
|
|
switch (BYTE_TYPE(enc, ptr2)) {
|
|
case BT_LEAD2:
|
|
case BT_LEAD3:
|
|
case BT_LEAD4:
|
|
case BT_NONASCII:
|
|
case BT_NMSTRT:
|
|
#ifdef XML_NS
|
|
case BT_COLON:
|
|
#endif
|
|
case BT_HEX:
|
|
case BT_DIGIT:
|
|
case BT_NAME:
|
|
case BT_MINUS:
|
|
return 0;
|
|
default:
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
/* not reached */
|
|
}
|
|
|
|
static
|
|
int PREFIX(nameMatchesAscii)(const ENCODING *enc, const char *ptr1, const char *ptr2)
|
|
{
|
|
for (; *ptr2; ptr1 += MINBPC(enc), ptr2++) {
|
|
if (!CHAR_MATCHES(enc, ptr1, *ptr2))
|
|
return 0;
|
|
}
|
|
switch (BYTE_TYPE(enc, ptr1)) {
|
|
case BT_LEAD2:
|
|
case BT_LEAD3:
|
|
case BT_LEAD4:
|
|
case BT_NONASCII:
|
|
case BT_NMSTRT:
|
|
#ifdef XML_NS
|
|
case BT_COLON:
|
|
#endif
|
|
case BT_HEX:
|
|
case BT_DIGIT:
|
|
case BT_NAME:
|
|
case BT_MINUS:
|
|
return 0;
|
|
default:
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
static
|
|
int PREFIX(nameLength)(const ENCODING *enc, const char *ptr)
|
|
{
|
|
const char *start = ptr;
|
|
for (;;) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
#define LEAD_CASE(n) \
|
|
case BT_LEAD ## n: ptr += n; break;
|
|
LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
|
|
#undef LEAD_CASE
|
|
case BT_NONASCII:
|
|
case BT_NMSTRT:
|
|
#ifdef XML_NS
|
|
case BT_COLON:
|
|
#endif
|
|
case BT_HEX:
|
|
case BT_DIGIT:
|
|
case BT_NAME:
|
|
case BT_MINUS:
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
default:
|
|
return ptr - start;
|
|
}
|
|
}
|
|
}
|
|
|
|
static
|
|
const char *PREFIX(skipS)(const ENCODING *enc, const char *ptr)
|
|
{
|
|
for (;;) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
case BT_LF:
|
|
case BT_CR:
|
|
case BT_S:
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
default:
|
|
return ptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
static
|
|
void PREFIX(updatePosition)(const ENCODING *enc,
|
|
const char *ptr,
|
|
const char *end,
|
|
POSITION *pos)
|
|
{
|
|
while (ptr != end) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
#define LEAD_CASE(n) \
|
|
case BT_LEAD ## n: \
|
|
ptr += n; \
|
|
break;
|
|
LEAD_CASE(2) LEAD_CASE(3) LEAD_CASE(4)
|
|
#undef LEAD_CASE
|
|
case BT_LF:
|
|
pos->columnNumber = (unsigned)-1;
|
|
pos->lineNumber++;
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
case BT_CR:
|
|
pos->lineNumber++;
|
|
ptr += MINBPC(enc);
|
|
if (ptr != end && BYTE_TYPE(enc, ptr) == BT_LF)
|
|
ptr += MINBPC(enc);
|
|
pos->columnNumber = (unsigned)-1;
|
|
break;
|
|
default:
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
}
|
|
pos->columnNumber++;
|
|
}
|
|
}
|
|
|
|
#undef DO_LEAD_CASE
|
|
#undef MULTIBYTE_CASES
|
|
#undef INVALID_CASES
|
|
#undef CHECK_NAME_CASE
|
|
#undef CHECK_NAME_CASES
|
|
#undef CHECK_NMSTRT_CASE
|
|
#undef CHECK_NMSTRT_CASES
|