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-rw-r--r--library/Text_Highlighter/Text/Highlighter.php398
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diff --git a/library/Text_Highlighter/Text/Highlighter.php b/library/Text_Highlighter/Text/Highlighter.php
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-<?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: $Id$
- * @link http://pear.php.net/package/Text_Highlighter
- */
-
-// require_once 'PEAR.php';
-
-// {{{ 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 $options['tag'] = HL_TAG_PRE
- */
- define ('HL_NUMBERS_TABLE' , 2);
- /**#@-*/
-}
-
-// }}}
-// {{{ constants
-/**
- * for our purpose, it is infinity
- */
-define ('HL_INFINITY', 1000000000);
-
-// }}}
-
-/**
- * Text highlighter base class
- *
- * @author Andrey Demenev <demenev@gmail.com>
- * @copyright 2004-2006 Andrey Demenev
- * @license http://www.php.net/license/3_0.txt PHP License
- * @version Release: @package_version@
- * @link http://pear.php.net/package/Text_Highlighter
- */
-
-// {{{ Text_Highlighter
-
-/**
- * Text highlighter base class
- *
- * This class implements all functions necessary for highlighting,
- * but it does not contain highlighting rules. Actual highlighting is
- * done using a descendent of this class.
- *
- * One is not supposed to manually create descendent classes.
- * Instead, describe highlighting rules in XML format and
- * use {@link Text_Highlighter_Generator} to create descendent class.
- * Alternatively, an instance of a descendent class can be created
- * directly.
- *
- * Use {@link Text_Highlighter::factory()} to create an
- * object for particular language highlighter
- *
- * Usage example
- * <code>
- *require_once 'Text/Highlighter.php';
- *$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 $options Rendering options. This
- * parameter is only keeped for BC reasons, use
- * {@link Text_Highlighter::setRenderer()} instead
- *
- * @return mixed a newly created Highlighter object, or
- * a PEAR error object on error
- *
- * @static
- * @access public
- */
- function &factory($lang, $options = array())
- {
- $lang = strtoupper($lang);
- @include_once 'Text/Highlighter/' . $lang . '.php';
-
- $classname = 'Text_Highlighter_' . $lang;
-
- if (!class_exists($classname)) {
- return PEAR::raiseError('Highlighter for ' . $lang . ' not found');
- }
-
- $obj = new $classname($options);
-
- return $obj;
- }
-
- // }}}
- // {{{ 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:
- */
-
-?>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 18:37:29 +0000