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-rw-r--r--paste/include/geshi/classes/class.geshistringcontext.php190
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diff --git a/paste/include/geshi/classes/class.geshistringcontext.php b/paste/include/geshi/classes/class.geshistringcontext.php
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-<?php
-/**
- * GeSHi - Generic Syntax Highlighter
- *
- * For information on how to use GeSHi, please consult the documentation
- * found in the docs/ directory, or online at http://geshi.org/docs/
- *
- * This file is part of GeSHi.
- *
- * GeSHi is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * GeSHi is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GeSHi; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * You can view a copy of the GNU GPL in the COPYING file that comes
- * with GeSHi, in the docs/ directory.
- *
- * @package core
- * @author Nigel McNie <nigel@geshi.org>
- * @license http://www.gnu.org/copyleft/gpl.html GNU GPL
- * @copyright (C) 2005 Nigel McNie
- * @version 1.1.0
- *
- */
-
-/**
- * The GeSHiStringContext class. This class extends GeSHiContext to handle
- * the concept of escape characters that strings often use.
- *
- * @package core
- * @author Nigel McNie <nigel@geshi.org>
- * @since 1.1.0
- * @version 1.1.0
- * @see GeSHiContext
- */
-class GeSHiStringContext extends GeSHiContext
-{
- /**#@-
- * @access private
- */
- var $_escapeCharacters;
-
- // Characters that should be escaped
- var $_charsToEscape;
-
- /**
- * This is used by the 'DELIM' "character" in the _charsToEscape array. We
- * abuse the fact that _addParseData will be called right after _getContextEndData
- * if the context is to be passed
- */
- var $_lastOpener;
-
- /**#@-*/
-
- /**
- * GetContextEndData
- */
- function _getContextEndData ($code, $context_open_key, $context_opener)
- {
- geshi_dbg('GeSHiStringContext::_getContextEndData(' . $this->_contextName . ', ' . $context_open_key . ', ' . $context_opener . ')', GESHI_DBG_API | GESHI_DBG_PARSE);
- $this->_lastOpener = $context_opener;
-
- foreach ($this->_contextDelimiters[$context_open_key][1] as $ender) {
- geshi_dbg(' Checking ender: ' . $ender, GESHI_DBG_PARSE);
-
- // Prepare ender regexes if needed
- $ender = $this->_substitutePlaceholders($ender);
- geshi_dbg(' ender after substitution: ' . $ender, GESHI_DBG_PARSE);
-
- $pos = 0;
- while (true) {
- $pos = geshi_get_position($code, $ender, $pos);
- if (false === $pos) {
- break;
- }
- $len = $pos['len'];
- $pos = $pos['pos'];
-
- $possible_string = substr($code, 0, $pos);
- geshi_dbg(' String might be: ' . $possible_string, GESHI_DBG_PARSE);
-
- foreach ($this->_escapeCharacters as $escape_char) {
- // remove escaped escape characters
- $possible_string = str_replace($escape_char . $escape_char, '', $possible_string);
- }
-
- geshi_dbg(' String with double escapes removed: ' . $possible_string, GESHI_DBG_PARSE);
-
- //@todo [blocking 1.1.1] possible bug: only last escape character checked here
- if (substr($possible_string, -1) != $escape_char) {
- // We may have found the correct ender. If we haven't, then this string
- // never ends and we will set the end position to the length of the code
- // substr($code, $pos, 1) == $ender
- $endpos = geshi_get_position($code, $ender, $pos);
- geshi_dbg(' position of ender: ' . $endpos['pos'], GESHI_DBG_PARSE);
- $pos = ($pos && $endpos['pos'] === $pos) ? $pos : strlen($code);
- return array('pos' => $pos, 'len' => $len, 'dlm' => $ender);
- }
- // else, start further up
- ++$pos;
- }
- }
- return false;
- }
-
- /**
- * Overrides addParseData to add escape characters also
- */
- function _addParseData ($code, $first_char_of_next_context = '')
- {
- geshi_dbg('GeSHiStringContext::_addParseData(' . substr($code, 0, 15) . '...)', GESHI_DBG_PARSE);
-
- $length = strlen($code);
- $string = '';
- for ($i = 0; $i < $length; $i++) {
- $char = substr($code, $i, 1);
- geshi_dbg('Char: ' . $char, GESHI_DBG_PARSE);
- $skip = false;
-
- foreach ($this->_escapeCharacters as $escape_char) {
- $len = 1;
- if ($char == $escape_char && (false !== ($len = $this->_shouldBeEscaped(substr($code, $i + 1))))) {
- geshi_dbg('Match: len = ' . $len, GESHI_DBG_PARSE);
- if ($string) {
- $this->_styler->addParseData($string, $this->_contextName);
- $string = '';
- }
- // Needs a better name than /esc
- $this->_styler->addParseData($escape_char . substr($code, $i + 1, $len), $this->_contextName . '/esc');
- // FastForward
- $i += $len;
- $skip = true;
- break;
- }
- }
-
- if (!$skip) {
- $string .= $char;
- }
- }
- if ($string) {
- $this->_styler->addParseData($string, $this->_contextName);
- }
- }
-
- /**
- * Checks whether the character(s) at the start of the parameter string are
- * characters that should be escaped.
- *
- * @param string The string to check the beginning of for escape characters
- * @return int|false The length of the escape character sequence, else false
- */
- function _shouldBeEscaped ($code)
- {
- // Feature: If 'DELIM' is one of the "characters" in the _charsToEscape array, then it is
- // replaced by the context opener
- $chars_to_escape = str_replace('DELIM', $this->_lastOpener, $this->_charsToEscape);
-
- geshi_dbg('Checking: ' . substr($code, 0, 15), GESHI_DBG_PARSE);
- foreach ($chars_to_escape as $match) {
- if ('REGEX' != substr($match, 0, 5)) {
- geshi_dbg('Test: ' . $match, GESHI_DBG_PARSE);
- if (substr($code, 0, 1) == $match) {
- return 1;
- }
- } else {
- geshi_dbg(' Testing via regex: ' . $match . '... ', GESHI_DBG_PARSE, false);
- $data = geshi_get_position($code, $match, 0);
- if (0 === $data['pos']) {
- geshi_dbg('match, data = ' . print_r($data, true), GESHI_DBG_PARSE);
- return $data['len'];
- }
- geshi_dbg('no match', GESHI_DBG_PARSE);
- }
- }
- // No matches...
- return false;
- }
-}
-
-?>
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