diff options
| author | xue <> | 2007-07-20 12:33:27 +0000 |
|---|---|---|
| committer | xue <> | 2007-07-20 12:33:27 +0000 |
| commit | 786dde43ea21c1990071683a8cf5efd3bd1b791d (patch) | |
| tree | 34d7e664f974976e800ac8cc790a8046854e8238 /framework/3rdParty/TextHighlighter/Text/Highlighter.php | |
| parent | 46f58667d00624c115ad99a590aebef99ab133a5 (diff) | |
Replaced GeSHi with Text_Highlighter
Diffstat (limited to 'framework/3rdParty/TextHighlighter/Text/Highlighter.php')
| -rw-r--r-- | framework/3rdParty/TextHighlighter/Text/Highlighter.php | 393 |
1 files changed, 393 insertions, 0 deletions
diff --git a/framework/3rdParty/TextHighlighter/Text/Highlighter.php b/framework/3rdParty/TextHighlighter/Text/Highlighter.php new file mode 100644 index 00000000..7a592646 --- /dev/null +++ b/framework/3rdParty/TextHighlighter/Text/Highlighter.php @@ -0,0 +1,393 @@ +<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+/**
+ * Highlighter base class
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt. If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category Text
+ * @package Text_Highlighter
+ * @author Andrey Demenev <demenev@gmail.com>
+ * @copyright 2004-2006 Andrey Demenev
+ * @license http://www.php.net/license/3_0.txt PHP License
+ * @version CVS: $Id: Highlighter.php,v 1.1 2007/06/03 02:35:28 ssttoo Exp $
+ * @link http://pear.php.net/package/Text_Highlighter
+ */
+
+// {{{ BC constants
+
+// BC trick : define constants related to default
+// renderer if needed
+if (!defined('HL_NUMBERS_LI')) {
+ /**#@+
+ * Constant for use with $options['numbers']
+ * @see Text_Highlighter_Renderer_Html::_init()
+ */
+ /**
+ * use numbered list
+ */
+ define ('HL_NUMBERS_LI' , 1);
+ /**
+ * Use 2-column table with line numbers in left column and code in right column.
+ * Forces $options['tag'] = HL_TAG_PRE
+ */
+ define ('HL_NUMBERS_TABLE' , 2);
+ /**#@-*/
+}
+
+// }}}
+// {{{ constants
+/**
+ * for our purpose, it is infinity
+ */
+define ('HL_INFINITY', 1000000000);
+
+// }}}
+
+/**
+ * Text highlighter base class
+ *
+ * @author Andrey Demenev <demenev@gmail.com>
+ * @copyright 2004-2006 Andrey Demenev
+ * @license http://www.php.net/license/3_0.txt PHP License
+ * @version Release: 0.7.0
+ * @link http://pear.php.net/package/Text_Highlighter
+ */
+
+// {{{ Text_Highlighter
+
+/**
+ * Text highlighter base class
+ *
+ * This class implements all functions necessary for highlighting,
+ * but it does not contain highlighting rules. Actual highlighting is
+ * done using a descendent of this class.
+ *
+ * One is not supposed to manually create descendent classes.
+ * Instead, describe highlighting rules in XML format and
+ * use {@link Text_Highlighter_Generator} to create descendent class.
+ * Alternatively, an instance of a descendent class can be created
+ * directly.
+ *
+ * Use {@link Text_Highlighter::factory()} to create an
+ * object for particular language highlighter
+ *
+ * Usage example
+ * <code>
+ *require_once 'Text/Highlighter.php';
+ *$hlSQL =& Text_Highlighter::factory('SQL',array('numbers'=>true));
+ *echo $hlSQL->highlight('SELECT * FROM table a WHERE id = 12');
+ * </code>
+ *
+ * @author Andrey Demenev <demenev@gmail.com>
+ * @package Text_Highlighter
+ * @access public
+ */
+
+class Text_Highlighter
+{
+ // {{{ members
+
+ /**
+ * Syntax highlighting rules.
+ * Auto-generated classes set this var
+ *
+ * @access protected
+ * @see _init
+ * @var array
+ */
+ var $_syntax;
+
+ /**
+ * Renderer object.
+ *
+ * @access private
+ * @var array
+ */
+ var $_renderer;
+
+ /**
+ * Options. Keeped for BC
+ *
+ * @access protected
+ * @var array
+ */
+ var $_options = array();
+
+ /**
+ * Conditionds
+ *
+ * @access protected
+ * @var array
+ */
+ var $_conditions = array();
+
+ /**
+ * Disabled keywords
+ *
+ * @access protected
+ * @var array
+ */
+ var $_disabled = array();
+
+ /**
+ * Language
+ *
+ * @access protected
+ * @var string
+ */
+ var $_language = '';
+
+ // }}}
+ // {{{ _checkDefines
+
+ /**
+ * Called by subclssses' constructors to enable/disable
+ * optional highlighter rules
+ *
+ * @param array $defines Conditional defines
+ *
+ * @access protected
+ */
+ function _checkDefines()
+ {
+ if (isset($this->_options['defines'])) {
+ $defines = $this->_options['defines'];
+ } else {
+ $defines = array();
+ }
+ foreach ($this->_conditions as $name => $actions) {
+ foreach($actions as $action) {
+ $present = in_array($name, $defines);
+ if (!$action[1]) {
+ $present = !$present;
+ }
+ if ($present) {
+ unset($this->_disabled[$action[0]]);
+ } else {
+ $this->_disabled[$action[0]] = true;
+ }
+ }
+ }
+ }
+
+ // }}}
+ // {{{ factory
+
+ /**
+ * Create a new Highlighter object for specified language
+ *
+ * @param string $lang language, for example "SQL"
+ * @param array $options Rendering options. This
+ * parameter is only keeped for BC reasons, use
+ * {@link Text_Highlighter::setRenderer()} instead
+ *
+ * @return mixed a newly created Highlighter object, or
+ * a PEAR error object on error
+ *
+ * @static
+ * @access public
+ */
+ public static function factory($lang, $options = array())
+ {
+ $lang = strtoupper($lang);
+ include_once dirname(__FILE__)."/Highlighter/$lang.php";
+
+ $classname = 'Text_Highlighter_' . $lang;
+
+ if (!class_exists($classname))
+ return false;
+
+ return new $classname($options);
+ }
+
+ // }}}
+ // {{{ setRenderer
+
+ /**
+ * Set renderer object
+ *
+ * @param object $renderer Text_Highlighter_Renderer
+ *
+ * @access public
+ */
+ function setRenderer($renderer)
+ {
+ $this->_renderer = $renderer;
+ }
+
+ // }}}
+
+ /**
+ * Helper function to find matching brackets
+ *
+ * @access private
+ */
+ function _matchingBrackets($str)
+ {
+ return strtr($str, '()<>[]{}', ')(><][}{');
+ }
+
+
+
+
+ function _getToken()
+ {
+ if (!empty($this->_tokenStack)) {
+ return array_pop($this->_tokenStack);
+ }
+ if ($this->_pos >= $this->_len) {
+ return NULL;
+ }
+
+ if ($this->_state != -1 && preg_match($this->_endpattern, $this->_str, $m, PREG_OFFSET_CAPTURE, $this->_pos)) {
+ $endpos = $m[0][1];
+ $endmatch = $m[0][0];
+ } else {
+ $endpos = -1;
+ }
+ preg_match ($this->_regs[$this->_state], $this->_str, $m, PREG_OFFSET_CAPTURE, $this->_pos);
+ $n = 1;
+
+
+ foreach ($this->_counts[$this->_state] as $i=>$count) {
+ if (!isset($m[$n])) {
+ break;
+ }
+ if ($m[$n][1]>-1 && ($endpos == -1 || $m[$n][1] < $endpos)) {
+ if ($this->_states[$this->_state][$i] != -1) {
+ $this->_tokenStack[] = array($this->_delim[$this->_state][$i], $m[$n][0]);
+ } else {
+ $inner = $this->_inner[$this->_state][$i];
+ if (isset($this->_parts[$this->_state][$i])) {
+ $parts = array();
+ $partpos = $m[$n][1];
+ for ($j=1; $j<=$count; $j++) {
+ if ($m[$j+$n][1] < 0) {
+ continue;
+ }
+ if (isset($this->_parts[$this->_state][$i][$j])) {
+ if ($m[$j+$n][1] > $partpos) {
+ array_unshift($parts, array($inner, substr($this->_str, $partpos, $m[$j+$n][1]-$partpos)));
+ }
+ array_unshift($parts, array($this->_parts[$this->_state][$i][$j], $m[$j+$n][0]));
+ }
+ $partpos = $m[$j+$n][1] + strlen($m[$j+$n][0]);
+ }
+ if ($partpos < $m[$n][1] + strlen($m[$n][0])) {
+ array_unshift($parts, array($inner, substr($this->_str, $partpos, $m[$n][1] - $partpos + strlen($m[$n][0]))));
+ }
+ $this->_tokenStack = array_merge($this->_tokenStack, $parts);
+ } else {
+ foreach ($this->_keywords[$this->_state][$i] as $g => $re) {
+ if (isset($this->_disabled[$g])) {
+ continue;
+ }
+ if (preg_match($re, $m[$n][0])) {
+ $inner = $this->_kwmap[$g];
+ break;
+ }
+ }
+ $this->_tokenStack[] = array($inner, $m[$n][0]);
+ }
+ }
+ if ($m[$n][1] > $this->_pos) {
+ $this->_tokenStack[] = array($this->_lastinner, substr($this->_str, $this->_pos, $m[$n][1]-$this->_pos));
+ }
+ $this->_pos = $m[$n][1] + strlen($m[$n][0]);
+ if ($this->_states[$this->_state][$i] != -1) {
+ $this->_stack[] = array($this->_state, $this->_lastdelim, $this->_lastinner, $this->_endpattern);
+ $this->_lastinner = $this->_inner[$this->_state][$i];
+ $this->_lastdelim = $this->_delim[$this->_state][$i];
+ $l = $this->_state;
+ $this->_state = $this->_states[$this->_state][$i];
+ $this->_endpattern = $this->_end[$this->_state];
+ if ($this->_subst[$l][$i]) {
+ for ($k=0; $k<=$this->_counts[$l][$i]; $k++) {
+ if (!isset($m[$i+$k])) {
+ break;
+ }
+ $quoted = preg_quote($m[$n+$k][0], '/');
+ $this->_endpattern = str_replace('%'.$k.'%', $quoted, $this->_endpattern);
+ $this->_endpattern = str_replace('%b'.$k.'%', $this->_matchingBrackets($quoted), $this->_endpattern);
+ }
+ }
+ }
+ return array_pop($this->_tokenStack);
+ }
+ $n += $count + 1;
+ }
+
+ if ($endpos > -1) {
+ $this->_tokenStack[] = array($this->_lastdelim, $endmatch);
+ if ($endpos > $this->_pos) {
+ $this->_tokenStack[] = array($this->_lastinner, substr($this->_str, $this->_pos, $endpos-$this->_pos));
+ }
+ list($this->_state, $this->_lastdelim, $this->_lastinner, $this->_endpattern) = array_pop($this->_stack);
+ $this->_pos = $endpos + strlen($endmatch);
+ return array_pop($this->_tokenStack);
+ }
+ $p = $this->_pos;
+ $this->_pos = HL_INFINITY;
+ return array($this->_lastinner, substr($this->_str, $p));
+ }
+
+
+
+
+ // {{{ highlight
+
+ /**
+ * Highlights code
+ *
+ * @param string $str Code to highlight
+ * @access public
+ * @return string Highlighted text
+ *
+ */
+
+ function highlight($str)
+ {
+ if (!($this->_renderer)) {
+ include_once('Text/Highlighter/Renderer/Html.php');
+ $this->_renderer = new Text_Highlighter_Renderer_Html($this->_options);
+ }
+ $this->_state = -1;
+ $this->_pos = 0;
+ $this->_stack = array();
+ $this->_tokenStack = array();
+ $this->_lastinner = $this->_defClass;
+ $this->_lastdelim = $this->_defClass;
+ $this->_endpattern = '';
+ $this->_renderer->reset();
+ $this->_renderer->setCurrentLanguage($this->_language);
+ $this->_str = $this->_renderer->preprocess($str);
+ $this->_len = strlen($this->_str);
+ while ($token = $this->_getToken()) {
+ $this->_renderer->acceptToken($token[0], $token[1]);
+ }
+ $this->_renderer->finalize();
+ return $this->_renderer->getOutput();
+ }
+
+ // }}}
+
+}
+
+// }}}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * c-hanging-comment-ender-p: nil
+ * End:
+ */
+
+?>
\ No newline at end of file |