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59e639b5d4
GH-13516 was created before the new DOM files were added, and the PR was never rebased to include the new DOM files, so there are three places which were not replaced.
77 lines
2.6 KiB
C
77 lines
2.6 KiB
C
/*
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+----------------------------------------------------------------------+
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| Copyright (c) The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| https://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Niels Dossche <nielsdos@php.net> |
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+----------------------------------------------------------------------+
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "php.h"
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#if defined(HAVE_LIBXML) && defined(HAVE_DOM)
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#include "infra.h"
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/* https://infra.spec.whatwg.org/#ascii-whitespace */
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const char *ascii_whitespace = "\x09\x0A\x0C\x0D\x20";
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/* https://infra.spec.whatwg.org/#strip-and-collapse-ascii-whitespace */
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zend_string *dom_strip_and_collapse_ascii_whitespace(zend_string *input)
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{
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if (input == zend_empty_string) {
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return input;
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}
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ZEND_ASSERT(!ZSTR_IS_INTERNED(input));
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ZEND_ASSERT(GC_REFCOUNT(input) == 1);
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char *write_ptr = ZSTR_VAL(input);
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const char *start = ZSTR_VAL(input);
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const char *current = start;
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const char *end = current + ZSTR_LEN(input);
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current += strspn(current, ascii_whitespace);
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while (current < end) {
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/* Copy non-whitespace */
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size_t non_whitespace_len = strcspn(current, ascii_whitespace);
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/* If the pointers are equal, we still haven't encountered collapsable or strippable whitespace. */
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if (write_ptr != current) {
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memmove(write_ptr, current, non_whitespace_len);
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}
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current += non_whitespace_len;
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write_ptr += non_whitespace_len;
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/* Skip whitespace */
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current += strspn(current, ascii_whitespace);
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if (current < end) {
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/* Only make a space when we're not yet at the end of the input, because that means more non-whitespace
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* input is to come. */
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*write_ptr++ = ' ';
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}
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}
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*write_ptr = '\0';
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size_t len = write_ptr - start;
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if (len != ZSTR_LEN(input)) {
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return zend_string_truncate(input, len, false);
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} else {
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/* Forget the hash value since we may have transformed non-space-whitespace into spaces. */
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zend_string_forget_hash_val(input);
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return input;
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}
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}
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#endif /* HAVE_LIBXML && HAVE_DOM */
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