1814 lines
52 KiB
C
1814 lines
52 KiB
C
/* This file is included (from xmltok.c, 1-3 times depending on XML_MIN_SIZE)!
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__ __ _
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___\ \/ /_ __ __ _| |_
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/ _ \\ /| '_ \ / _` | __|
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| __// \| |_) | (_| | |_
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\___/_/\_\ .__/ \__,_|\__|
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|_| XML parser
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Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
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Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
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Copyright (c) 2002 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
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Copyright (c) 2002-2016 Karl Waclawek <karl@waclawek.net>
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Copyright (c) 2016-2021 Sebastian Pipping <sebastian@pipping.org>
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Copyright (c) 2017 Rhodri James <rhodri@wildebeest.org.uk>
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Copyright (c) 2018 Benjamin Peterson <benjamin@python.org>
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Copyright (c) 2018 Anton Maklakov <antmak.pub@gmail.com>
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Copyright (c) 2019 David Loffredo <loffredo@steptools.com>
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Copyright (c) 2020 Boris Kolpackov <boris@codesynthesis.com>
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Licensed under the MIT license:
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to permit
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persons to whom the Software is furnished to do so, subject to the
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following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifdef XML_TOK_IMPL_C
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# ifndef IS_INVALID_CHAR // i.e. for UTF-16 and XML_MIN_SIZE not defined
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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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/* fall through */ \
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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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/* fall through */ \
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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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# define HAS_CHARS(enc, ptr, end, count) (end - ptr >= count * MINBPC(enc))
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# define HAS_CHAR(enc, ptr, end) HAS_CHARS(enc, ptr, end, 1)
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# define REQUIRE_CHARS(enc, ptr, end, count) \
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{ \
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if (! HAS_CHARS(enc, ptr, end, count)) { \
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return XML_TOK_PARTIAL; \
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} \
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}
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# define REQUIRE_CHAR(enc, ptr, end) REQUIRE_CHARS(enc, ptr, end, 1)
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/* ptr points to character following "<!-" */
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static int PTRCALL
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PREFIX(scanComment)(const ENCODING *enc, const char *ptr, const char *end,
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const char **nextTokPtr) {
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if (HAS_CHAR(enc, ptr, end)) {
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if (! CHAR_MATCHES(enc, ptr, ASCII_MINUS)) {
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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 (HAS_CHAR(enc, 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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ptr += MINBPC(enc);
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REQUIRE_CHAR(enc, ptr, end);
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if (CHAR_MATCHES(enc, ptr, ASCII_MINUS)) {
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ptr += MINBPC(enc);
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REQUIRE_CHAR(enc, ptr, end);
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if (! CHAR_MATCHES(enc, ptr, ASCII_GT)) {
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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 int PTRCALL
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PREFIX(scanDecl)(const ENCODING *enc, const char *ptr, const char *end,
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const char **nextTokPtr) {
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REQUIRE_CHAR(enc, ptr, end);
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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 (HAS_CHAR(enc, ptr, end)) {
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switch (BYTE_TYPE(enc, ptr)) {
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case BT_PERCNT:
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REQUIRE_CHARS(enc, ptr, end, 2);
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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:
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case BT_CR:
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case BT_LF:
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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:
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case BT_CR:
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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 int PTRCALL
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PREFIX(checkPiTarget)(const ENCODING *enc, const char *ptr, const char *end,
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int *tokPtr) {
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int upper = 0;
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UNUSED_P(enc);
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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 ASCII_x:
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break;
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case ASCII_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 ASCII_m:
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break;
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case ASCII_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 ASCII_l:
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break;
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case ASCII_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 int PTRCALL
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PREFIX(scanPi)(const ENCODING *enc, const char *ptr, const char *end,
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const char **nextTokPtr) {
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int tok;
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const char *target = ptr;
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REQUIRE_CHAR(enc, ptr, end);
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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 (HAS_CHAR(enc, 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:
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case BT_CR:
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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 (HAS_CHAR(enc, 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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REQUIRE_CHAR(enc, ptr, end);
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if (CHAR_MATCHES(enc, ptr, ASCII_GT)) {
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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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REQUIRE_CHAR(enc, ptr, end);
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if (CHAR_MATCHES(enc, ptr, ASCII_GT)) {
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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 int PTRCALL
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PREFIX(scanCdataSection)(const ENCODING *enc, const char *ptr, const char *end,
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const char **nextTokPtr) {
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static const char CDATA_LSQB[]
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= {ASCII_C, ASCII_D, ASCII_A, ASCII_T, ASCII_A, ASCII_LSQB};
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int i;
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UNUSED_P(enc);
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/* CDATA[ */
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REQUIRE_CHARS(enc, ptr, end, 6);
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for (i = 0; i < 6; i++, ptr += MINBPC(enc)) {
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if (! CHAR_MATCHES(enc, ptr, CDATA_LSQB[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 int PTRCALL
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PREFIX(cdataSectionTok)(const ENCODING *enc, const char *ptr, const char *end,
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const char **nextTokPtr) {
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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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REQUIRE_CHAR(enc, ptr, end);
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if (! CHAR_MATCHES(enc, ptr, ASCII_RSQB))
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break;
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ptr += MINBPC(enc);
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REQUIRE_CHAR(enc, ptr, end);
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if (! CHAR_MATCHES(enc, ptr, ASCII_GT)) {
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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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REQUIRE_CHAR(enc, ptr, end);
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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 (HAS_CHAR(enc, 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)
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LEAD_CASE(3)
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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 int PTRCALL
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PREFIX(scanEndTag)(const ENCODING *enc, const char *ptr, const char *end,
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const char **nextTokPtr) {
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REQUIRE_CHAR(enc, ptr, end);
|
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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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}
|
|
while (HAS_CHAR(enc, ptr, end)) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
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CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
|
|
case BT_S:
|
|
case BT_CR:
|
|
case BT_LF:
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|
for (ptr += MINBPC(enc); HAS_CHAR(enc, ptr, end); ptr += MINBPC(enc)) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
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|
case BT_S:
|
|
case BT_CR:
|
|
case BT_LF:
|
|
break;
|
|
case BT_GT:
|
|
*nextTokPtr = ptr + MINBPC(enc);
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return XML_TOK_END_TAG;
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|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
}
|
|
return XML_TOK_PARTIAL;
|
|
# ifdef XML_NS
|
|
case BT_COLON:
|
|
/* no need to check qname syntax here,
|
|
since end-tag must match exactly */
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
# endif
|
|
case BT_GT:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_END_TAG;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
}
|
|
return XML_TOK_PARTIAL;
|
|
}
|
|
|
|
/* ptr points to character following "&#X" */
|
|
|
|
static int PTRCALL
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|
PREFIX(scanHexCharRef)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr) {
|
|
if (HAS_CHAR(enc, ptr, end)) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
case BT_DIGIT:
|
|
case BT_HEX:
|
|
break;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
for (ptr += MINBPC(enc); HAS_CHAR(enc, ptr, end); ptr += MINBPC(enc)) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
case BT_DIGIT:
|
|
case BT_HEX:
|
|
break;
|
|
case BT_SEMI:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_CHAR_REF;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
}
|
|
}
|
|
return XML_TOK_PARTIAL;
|
|
}
|
|
|
|
/* ptr points to character following "&#" */
|
|
|
|
static int PTRCALL
|
|
PREFIX(scanCharRef)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr) {
|
|
if (HAS_CHAR(enc, ptr, end)) {
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_x))
|
|
return PREFIX(scanHexCharRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
case BT_DIGIT:
|
|
break;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
for (ptr += MINBPC(enc); HAS_CHAR(enc, ptr, end); ptr += MINBPC(enc)) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
case BT_DIGIT:
|
|
break;
|
|
case BT_SEMI:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_CHAR_REF;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
}
|
|
}
|
|
return XML_TOK_PARTIAL;
|
|
}
|
|
|
|
/* ptr points to character following "&" */
|
|
|
|
static int PTRCALL
|
|
PREFIX(scanRef)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr) {
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
|
|
case BT_NUM:
|
|
return PREFIX(scanCharRef)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
while (HAS_CHAR(enc, ptr, end)) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NAME_CASES(enc, ptr, end, nextTokPtr)
|
|
case BT_SEMI:
|
|
*nextTokPtr = ptr + MINBPC(enc);
|
|
return XML_TOK_ENTITY_REF;
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
}
|
|
return XML_TOK_PARTIAL;
|
|
}
|
|
|
|
/* ptr points to character following first character of attribute name */
|
|
|
|
static int PTRCALL
|
|
PREFIX(scanAtts)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr) {
|
|
# ifdef XML_NS
|
|
int hadColon = 0;
|
|
# endif
|
|
while (HAS_CHAR(enc, 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);
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
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);
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
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);
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
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;
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
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);
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
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);
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
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);
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
if (! CHAR_MATCHES(enc, ptr, ASCII_GT)) {
|
|
*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 PTRCALL
|
|
PREFIX(scanLt)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr) {
|
|
# ifdef XML_NS
|
|
int hadColon;
|
|
# endif
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
|
|
case BT_EXCL:
|
|
ptr += MINBPC(enc);
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
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 (HAS_CHAR(enc, 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);
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
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 (HAS_CHAR(enc, 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);
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
if (! CHAR_MATCHES(enc, ptr, ASCII_GT)) {
|
|
*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 PTRCALL
|
|
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 (! HAS_CHAR(enc, 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 (! HAS_CHAR(enc, ptr, end))
|
|
return XML_TOK_TRAILING_RSQB;
|
|
if (! CHAR_MATCHES(enc, ptr, ASCII_RSQB))
|
|
break;
|
|
ptr += MINBPC(enc);
|
|
if (! HAS_CHAR(enc, ptr, end))
|
|
return XML_TOK_TRAILING_RSQB;
|
|
if (! CHAR_MATCHES(enc, ptr, ASCII_GT)) {
|
|
ptr -= MINBPC(enc);
|
|
break;
|
|
}
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
INVALID_CASES(ptr, nextTokPtr)
|
|
default:
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
}
|
|
while (HAS_CHAR(enc, 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 (HAS_CHARS(enc, ptr, end, 2)) {
|
|
if (! CHAR_MATCHES(enc, ptr + MINBPC(enc), ASCII_RSQB)) {
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
}
|
|
if (HAS_CHARS(enc, ptr, end, 3)) {
|
|
if (! CHAR_MATCHES(enc, ptr + 2 * MINBPC(enc), ASCII_GT)) {
|
|
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 PTRCALL
|
|
PREFIX(scanPercent)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr) {
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
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 (HAS_CHAR(enc, 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 PTRCALL
|
|
PREFIX(scanPoundName)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr) {
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
CHECK_NMSTRT_CASES(enc, ptr, end, nextTokPtr)
|
|
default:
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_INVALID;
|
|
}
|
|
while (HAS_CHAR(enc, 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_POUND_NAME;
|
|
}
|
|
|
|
static int PTRCALL
|
|
PREFIX(scanLit)(int open, const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr) {
|
|
while (HAS_CHAR(enc, 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 (! HAS_CHAR(enc, ptr, end))
|
|
return -XML_TOK_LITERAL;
|
|
*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 PTRCALL
|
|
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);
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
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) {
|
|
*nextTokPtr = end;
|
|
/* indicate that this might be part of a CR/LF pair */
|
|
return -XML_TOK_PROLOG_S;
|
|
}
|
|
/* fall through */
|
|
case BT_S:
|
|
case BT_LF:
|
|
for (;;) {
|
|
ptr += MINBPC(enc);
|
|
if (! HAS_CHAR(enc, 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 (! HAS_CHAR(enc, ptr, end))
|
|
return -XML_TOK_CLOSE_BRACKET;
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_RSQB)) {
|
|
REQUIRE_CHARS(enc, ptr, end, 2);
|
|
if (CHAR_MATCHES(enc, ptr + MINBPC(enc), ASCII_GT)) {
|
|
*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 (! HAS_CHAR(enc, ptr, end))
|
|
return -XML_TOK_CLOSE_PAREN;
|
|
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 (HAS_CHAR(enc, 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:
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
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 -tok;
|
|
}
|
|
|
|
static int PTRCALL
|
|
PREFIX(attributeValueTok)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr) {
|
|
const char *start;
|
|
if (ptr >= end)
|
|
return XML_TOK_NONE;
|
|
else if (! HAS_CHAR(enc, ptr, end)) {
|
|
/* This line cannot be executed. The incoming data has already
|
|
* been tokenized once, so incomplete characters like this have
|
|
* already been eliminated from the input. Retaining the paranoia
|
|
* check is still valuable, however.
|
|
*/
|
|
return XML_TOK_PARTIAL; /* LCOV_EXCL_LINE */
|
|
}
|
|
start = ptr;
|
|
while (HAS_CHAR(enc, 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 (! HAS_CHAR(enc, 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 PTRCALL
|
|
PREFIX(entityValueTok)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr) {
|
|
const char *start;
|
|
if (ptr >= end)
|
|
return XML_TOK_NONE;
|
|
else if (! HAS_CHAR(enc, ptr, end)) {
|
|
/* This line cannot be executed. The incoming data has already
|
|
* been tokenized once, so incomplete characters like this have
|
|
* already been eliminated from the input. Retaining the paranoia
|
|
* check is still valuable, however.
|
|
*/
|
|
return XML_TOK_PARTIAL; /* LCOV_EXCL_LINE */
|
|
}
|
|
start = ptr;
|
|
while (HAS_CHAR(enc, 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) {
|
|
int tok = PREFIX(scanPercent)(enc, ptr + MINBPC(enc), end, nextTokPtr);
|
|
return (tok == XML_TOK_PERCENT) ? XML_TOK_INVALID : tok;
|
|
}
|
|
*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 (! HAS_CHAR(enc, 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;
|
|
}
|
|
|
|
# ifdef XML_DTD
|
|
|
|
static int PTRCALL
|
|
PREFIX(ignoreSectionTok)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **nextTokPtr) {
|
|
int level = 0;
|
|
if (MINBPC(enc) > 1) {
|
|
size_t n = end - ptr;
|
|
if (n & (MINBPC(enc) - 1)) {
|
|
n &= ~(MINBPC(enc) - 1);
|
|
end = ptr + n;
|
|
}
|
|
}
|
|
while (HAS_CHAR(enc, ptr, end)) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
INVALID_CASES(ptr, nextTokPtr)
|
|
case BT_LT:
|
|
ptr += MINBPC(enc);
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_EXCL)) {
|
|
ptr += MINBPC(enc);
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_LSQB)) {
|
|
++level;
|
|
ptr += MINBPC(enc);
|
|
}
|
|
}
|
|
break;
|
|
case BT_RSQB:
|
|
ptr += MINBPC(enc);
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_RSQB)) {
|
|
ptr += MINBPC(enc);
|
|
REQUIRE_CHAR(enc, ptr, end);
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_GT)) {
|
|
ptr += MINBPC(enc);
|
|
if (level == 0) {
|
|
*nextTokPtr = ptr;
|
|
return XML_TOK_IGNORE_SECT;
|
|
}
|
|
--level;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
}
|
|
}
|
|
return XML_TOK_PARTIAL;
|
|
}
|
|
|
|
# endif /* XML_DTD */
|
|
|
|
static int PTRCALL
|
|
PREFIX(isPublicId)(const ENCODING *enc, const char *ptr, const char *end,
|
|
const char **badPtr) {
|
|
ptr += MINBPC(enc);
|
|
end -= MINBPC(enc);
|
|
for (; HAS_CHAR(enc, 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, ASCII_TAB)) {
|
|
*badPtr = ptr;
|
|
return 0;
|
|
}
|
|
break;
|
|
case BT_NAME:
|
|
case BT_NMSTRT:
|
|
if (! (BYTE_TO_ASCII(enc, ptr) & ~0x7f))
|
|
break;
|
|
/* fall through */
|
|
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 PTRCALL
|
|
PREFIX(getAtts)(const ENCODING *enc, const char *ptr, int attsMax,
|
|
ATTRIBUTE *atts) {
|
|
enum { other, inName, inValue } state = inName;
|
|
int nAtts = 0;
|
|
int open = 0; /* defined when state == inValue;
|
|
initialization just to shut up compilers */
|
|
|
|
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) != ASCII_SPACE
|
|
|| BYTE_TO_ASCII(enc, ptr + MINBPC(enc)) == ASCII_SPACE
|
|
|| 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 PTRFASTCALL
|
|
PREFIX(charRefNumber)(const ENCODING *enc, const char *ptr) {
|
|
int result = 0;
|
|
/* skip &# */
|
|
UNUSED_P(enc);
|
|
ptr += 2 * MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_x)) {
|
|
for (ptr += MINBPC(enc); ! CHAR_MATCHES(enc, ptr, ASCII_SEMI);
|
|
ptr += MINBPC(enc)) {
|
|
int c = BYTE_TO_ASCII(enc, ptr);
|
|
switch (c) {
|
|
case ASCII_0:
|
|
case ASCII_1:
|
|
case ASCII_2:
|
|
case ASCII_3:
|
|
case ASCII_4:
|
|
case ASCII_5:
|
|
case ASCII_6:
|
|
case ASCII_7:
|
|
case ASCII_8:
|
|
case ASCII_9:
|
|
result <<= 4;
|
|
result |= (c - ASCII_0);
|
|
break;
|
|
case ASCII_A:
|
|
case ASCII_B:
|
|
case ASCII_C:
|
|
case ASCII_D:
|
|
case ASCII_E:
|
|
case ASCII_F:
|
|
result <<= 4;
|
|
result += 10 + (c - ASCII_A);
|
|
break;
|
|
case ASCII_a:
|
|
case ASCII_b:
|
|
case ASCII_c:
|
|
case ASCII_d:
|
|
case ASCII_e:
|
|
case ASCII_f:
|
|
result <<= 4;
|
|
result += 10 + (c - ASCII_a);
|
|
break;
|
|
}
|
|
if (result >= 0x110000)
|
|
return -1;
|
|
}
|
|
} else {
|
|
for (; ! CHAR_MATCHES(enc, ptr, ASCII_SEMI); ptr += MINBPC(enc)) {
|
|
int c = BYTE_TO_ASCII(enc, ptr);
|
|
result *= 10;
|
|
result += (c - ASCII_0);
|
|
if (result >= 0x110000)
|
|
return -1;
|
|
}
|
|
}
|
|
return checkCharRefNumber(result);
|
|
}
|
|
|
|
static int PTRCALL
|
|
PREFIX(predefinedEntityName)(const ENCODING *enc, const char *ptr,
|
|
const char *end) {
|
|
UNUSED_P(enc);
|
|
switch ((end - ptr) / MINBPC(enc)) {
|
|
case 2:
|
|
if (CHAR_MATCHES(enc, ptr + MINBPC(enc), ASCII_t)) {
|
|
switch (BYTE_TO_ASCII(enc, ptr)) {
|
|
case ASCII_l:
|
|
return ASCII_LT;
|
|
case ASCII_g:
|
|
return ASCII_GT;
|
|
}
|
|
}
|
|
break;
|
|
case 3:
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_a)) {
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_m)) {
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_p))
|
|
return ASCII_AMP;
|
|
}
|
|
}
|
|
break;
|
|
case 4:
|
|
switch (BYTE_TO_ASCII(enc, ptr)) {
|
|
case ASCII_q:
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_u)) {
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_o)) {
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_t))
|
|
return ASCII_QUOT;
|
|
}
|
|
}
|
|
break;
|
|
case ASCII_a:
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_p)) {
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_o)) {
|
|
ptr += MINBPC(enc);
|
|
if (CHAR_MATCHES(enc, ptr, ASCII_s))
|
|
return ASCII_APOS;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int PTRCALL
|
|
PREFIX(nameMatchesAscii)(const ENCODING *enc, const char *ptr1,
|
|
const char *end1, const char *ptr2) {
|
|
UNUSED_P(enc);
|
|
for (; *ptr2; ptr1 += MINBPC(enc), ptr2++) {
|
|
if (end1 - ptr1 < MINBPC(enc)) {
|
|
/* This line cannot be executed. The incoming data has already
|
|
* been tokenized once, so incomplete characters like this have
|
|
* already been eliminated from the input. Retaining the
|
|
* paranoia check is still valuable, however.
|
|
*/
|
|
return 0; /* LCOV_EXCL_LINE */
|
|
}
|
|
if (! CHAR_MATCHES(enc, ptr1, *ptr2))
|
|
return 0;
|
|
}
|
|
return ptr1 == end1;
|
|
}
|
|
|
|
static int PTRFASTCALL
|
|
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 (int)(ptr - start);
|
|
}
|
|
}
|
|
}
|
|
|
|
static const char *PTRFASTCALL
|
|
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 PTRCALL
|
|
PREFIX(updatePosition)(const ENCODING *enc, const char *ptr, const char *end,
|
|
POSITION *pos) {
|
|
while (HAS_CHAR(enc, ptr, end)) {
|
|
switch (BYTE_TYPE(enc, ptr)) {
|
|
# define LEAD_CASE(n) \
|
|
case BT_LEAD##n: \
|
|
ptr += n; \
|
|
pos->columnNumber++; \
|
|
break;
|
|
LEAD_CASE(2)
|
|
LEAD_CASE(3)
|
|
LEAD_CASE(4)
|
|
# undef LEAD_CASE
|
|
case BT_LF:
|
|
pos->columnNumber = 0;
|
|
pos->lineNumber++;
|
|
ptr += MINBPC(enc);
|
|
break;
|
|
case BT_CR:
|
|
pos->lineNumber++;
|
|
ptr += MINBPC(enc);
|
|
if (HAS_CHAR(enc, ptr, end) && BYTE_TYPE(enc, ptr) == BT_LF)
|
|
ptr += MINBPC(enc);
|
|
pos->columnNumber = 0;
|
|
break;
|
|
default:
|
|
ptr += MINBPC(enc);
|
|
pos->columnNumber++;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
# 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
|
|
|
|
#endif /* XML_TOK_IMPL_C */
|