<?php
/*
* Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
* Version 1.1.6 (Caoineag beta 1)
* Copyright (C) 2006-2008 Dan Fuhry
*
* This program is Free Software; you can redistribute 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.
*
* This program 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 details.
*/
/**
* Parse structured wiki text and render into arbitrary formats such as XHTML.
*
* PHP versions 4 and 5
*
* @category Text
* @package Text_Wiki
* @author Paul M. Jones <pmjones@php.net>
* @license http://www.gnu.org/licenses/lgpl.html
* @version CVS: $Id: Wiki.php,v 1.44 2006/03/02 04:04:59 justinpatrin Exp $
* @link http://wiki.ciaweb.net/yawiki/index.php?area=Text_Wiki
*
* This code was modified for use in Enano. The Text_Wiki engine is licensed
* under the GNU Lesser General Public License; see
* http://www.gnu.org/licenses/lgpl.html for details.
*
*/
require_once ENANO_ROOT.'/includes/wikiengine/Parse.php';
require_once ENANO_ROOT.'/includes/wikiengine/Render.php';
class Text_Wiki {
var $rules = array(
'Prefilter',
'Delimiter',
'Code',
'Function',
'Html',
'Raw',
'Include',
'Embed',
'Anchor',
'Heading',
'Toc',
'Horiz',
'Break',
'Blockquote',
'List',
'Deflist',
'Table',
'Image',
'Phplookup',
'Center',
'Newline',
'Paragraph',
'Url',
'Freelink',
'Interwiki',
'Wikilink',
'Colortext',
'Strong',
'Bold',
'Emphasis',
'Italic',
'Underline',
'Tt',
'Superscript',
'Subscript',
'Revise',
'Tighten'
);
var $disable = array(
'Html',
'Include',
'Embed',
'Tighten',
'Image',
'Wikilink'
);
var $parseConf = array();
var $renderConf = array(
'Docbook' => array(),
'Latex' => array(),
'Pdf' => array(),
'Plain' => array(),
'Rtf' => array(),
'Xhtml' => array()
);
var $formatConf = array(
'Docbook' => array(),
'Latex' => array(),
'Pdf' => array(),
'Plain' => array(),
'Rtf' => array(),
'Xhtml' => array()
);
var $delim = "\xFF";
var $tokens = array();
var $_countRulesTokens = array();
var $source = '';
var $parseObj = array();
var $renderObj = array();
var $formatObj = array();
var $path = array(
'parse' => array(),
'render' => array()
);
var $_dirSep = DIRECTORY_SEPARATOR;
function Text_Wiki($rules = null)
{
if (is_array($rules)) {
$this->rules = $rules;
}
global $plugins;
// This code can be run from the installer, so in some cases $plugins
// isn't initted. (Bug in 1.1.2, fixed for 1.1.3)
if ( is_object($plugins) )
{
$code = $plugins->setHook('text_wiki_construct');
foreach ( $code as $cmd )
{
eval($cmd);
}
}
$this->addPath(
'parse',
$this->fixPath(ENANO_ROOT) . 'includes/wikiengine/Parse/Default/'
);
$this->addPath(
'render',
$this->fixPath(ENANO_ROOT) . 'includes/wikiengine/Render/'
);
}
public static function singleton($parser = 'Default', $rules = null)
{
static $only = array();
if (!isset($only[$parser])) {
$ret = Text_Wiki::factory($parser, $rules);
if (!$ret) {
return $ret;
}
$only[$parser] =& $ret;
}
return $only[$parser];
}
public static function factory($parser = 'Default', $rules = null)
{
$d=getcwd();
chdir(ENANO_ROOT);
$class = 'Text_Wiki_' . $parser;
$c2 = $parser;
$file = ENANO_ROOT . '/includes/wikiengine/' . str_replace('_', '/', $c2).'.php';
if (!class_exists($class)) {
$fp = @fopen($file, 'r', true);
if ($fp === false) {
die_semicritical('Wiki formatting engine error', '<p>Could not find file '.$file.' in include_path</p>');
}
fclose($fp);
include_once($file);
if (!class_exists($class)) {
die_semicritical('Wiki formatting engine error', '<p>Class '.$class.' does not exist after including '.$file.'</p>');
}
}
chdir($d);
$obj = new $class($rules);
return $obj;
}
function setParseConf($rule, $arg1, $arg2 = null)
{
$rule = ucwords(strtolower($rule));
if (! isset($this->parseConf[$rule])) {
$this->parseConf[$rule] = array();
}
if (is_array($arg1)) {
$this->parseConf[$rule] = $arg1;
} else {
$this->parseConf[$rule][$arg1] = $arg2;
}
}
function getParseConf($rule, $key = null)
{
$rule = ucwords(strtolower($rule));
if (! isset($this->parseConf[$rule])) {
return null;
}
if (is_null($key)) {
return $this->parseConf[$rule];
}
if (isset($this->parseConf[$rule][$key])) {
return $this->parseConf[$rule][$key];
} else {
return null;
}
}
function setRenderConf($format, $rule, $arg1, $arg2 = null)
{
$format = ucwords(strtolower($format));
$rule = ucwords(strtolower($rule));
if (! isset($this->renderConf[$format])) {
$this->renderConf[$format] = array();
}
if (! isset($this->renderConf[$format][$rule])) {
$this->renderConf[$format][$rule] = array();
}
if (is_array($arg1)) {
$this->renderConf[$format][$rule] = $arg1;
} else {
$this->renderConf[$format][$rule][$arg1] = $arg2;
}
}
function getRenderConf($format, $rule, $key = null)
{
$format = ucwords(strtolower($format));
$rule = ucwords(strtolower($rule));
if (! isset($this->renderConf[$format]) ||
! isset($this->renderConf[$format][$rule])) {
return null;
}
if (is_null($key)) {
return $this->renderConf[$format][$rule];
}
if (isset($this->renderConf[$format][$rule][$key])) {
return $this->renderConf[$format][$rule][$key];
} else {
return null;
}
}
function setFormatConf($format, $arg1, $arg2 = null)
{
if (! is_array($this->formatConf[$format])) {
$this->formatConf[$format] = array();
}
if (is_array($arg1)) {
$this->formatConf[$format] = $arg1;
} else {
$this->formatConf[$format][$arg1] = $arg2;
}
}
function getFormatConf($format, $key = null)
{
if (! isset($this->formatConf[$format])) {
return null;
}
if (is_null($key)) {
return $this->formatConf[$format];
}
if (isset($this->formatConf[$format][$key])) {
return $this->formatConf[$format][$key];
} else {
return null;
}
}
function insertRule($name, $tgt = null)
{
$name = ucwords(strtolower($name));
if (! is_null($tgt)) {
$tgt = ucwords(strtolower($tgt));
}
if (in_array($name, $this->rules)) {
return null;
}
if (! is_null($tgt) && $tgt != '' &&
! in_array($tgt, $this->rules)) {
return false;
}
if (is_null($tgt)) {
$this->rules[] = $name;
return true;
}
if ($tgt == '') {
array_unshift($this->rules, $name);
return true;
}
$tmp = $this->rules;
$this->rules = array();
foreach ($tmp as $val) {
$this->rules[] = $val;
if ($val == $tgt) {
$this->rules[] = $name;
}
}
return true;
}
function deleteRule($name)
{
$name = ucwords(strtolower($name));
$key = array_search($name, $this->rules);
if ($key !== false) {
unset($this->rules[$key]);
}
}
function changeRule($old, $new)
{
$old = ucwords(strtolower($old));
$new = ucwords(strtolower($new));
$key = array_search($old, $this->rules);
if ($key !== false) {
$this->deleteRule($new);
$this->rules[$key] = $new;
}
}
function enableRule($name)
{
$name = ucwords(strtolower($name));
$key = array_search($name, $this->disable);
if ($key !== false) {
unset($this->disable[$key]);
}
}
function disableRule($name)
{
$name = ucwords(strtolower($name));
$key = array_search($name, $this->disable);
if ($key === false) {
$this->disable[] = $name;
}
}
function transform($text, $format = 'Xhtml')
{
$this->parse($text);
return $this->render($format);
}
function parse($text)
{
$this->source = $text;
$this->tokens = array();
$this->_countRulesTokens = array();
foreach ($this->rules as $name) {
if (! in_array($name, $this->disable)) {
$this->loadParseObj($name);
if (is_object($this->parseObj[$name])) {
$this->parseObj[$name]->parse();
}
// For debugging
// echo('<p>' . $name . ':</p><pre>'.htmlspecialchars($this->source).'</pre>');
}
}
}
function render($format = 'Xhtml')
{
$format = ucwords(strtolower($format));
$output = '';
$in_delim = false;
$key = '';
$result = $this->loadFormatObj($format);
if ($this->isError($result)) {
return $result;
}
if (is_object($this->formatObj[$format])) {
$output .= $this->formatObj[$format]->pre();
}
foreach (array_keys($this->_countRulesTokens) as $rule) {
$this->loadRenderObj($format, $rule);
}
$k = strlen($this->source);
for ($i = 0; $i < $k; $i++) {
$char = $this->source{$i};
if ($in_delim) {
if ($char == $this->delim) {
$key = (int)$key;
$rule = $this->tokens[$key][0];
$opts = $this->tokens[$key][1];
$output .= $this->renderObj[$rule]->token($opts);
$in_delim = false;
} else {
$key .= $char;
}
} else {
if ($char == $this->delim) {
$key = '';
$in_delim = true;
} else {
$output .= $char;
}
}
}
if (is_object($this->formatObj[$format])) {
$output .= $this->formatObj[$format]->post();
}
return $output;
}
function getSource()
{
return $this->source;
}
function getTokens($rules = null)
{
if (is_null($rules)) {
return $this->tokens;
} else {
settype($rules, 'array');
$result = array();
foreach ($this->tokens as $key => $val) {
if (in_array($val[0], $rules)) {
$result[$key] = $val;
}
}
return $result;
}
}
function addToken($rule, $options = array(), $id_only = false)
{
static $id;
if (! isset($id)) {
$id = 0;
} else {
$id ++;
}
settype($options, 'array');
$this->tokens[$id] = array(
0 => $rule,
1 => $options
);
if (!isset($this->_countRulesTokens[$rule])) {
$this->_countRulesTokens[$rule] = 1;
} else {
++$this->_countRulesTokens[$rule];
}
if ($id_only) {
return $id;
} else {
return $this->delim . $id . $this->delim;
}
}
function setToken($id, $rule, $options = array())
{
$oldRule = $this->tokens[$id][0];
$this->tokens[$id] = array(
0 => $rule,
1 => $options
);
if ($rule != $oldRule) {
if (!($this->_countRulesTokens[$oldRule]--)) {
unset($this->_countRulesTokens[$oldRule]);
}
if (!isset($this->_countRulesTokens[$rule])) {
$this->_countRulesTokens[$rule] = 1;
} else {
++$this->_countRulesTokens[$rule];
}
}
}
function loadParseObj($rule)
{
$rule = ucwords(strtolower($rule));
$file = $rule . '.php';
$class = "Text_Wiki_Parse_$rule";
if (! class_exists($class)) {
$loc = $this->findFile('parse', $file);
if ($loc) {
include_once $loc;
} else {
$this->parseObj[$rule] = null;
return $this->error(
"Parse rule '$rule' not found"
);
}
}
$this->parseObj[$rule] = new $class($this);
}
function loadRenderObj($format, $rule)
{
$format = ucwords(strtolower($format));
$rule = ucwords(strtolower($rule));
$file = "$format/$rule.php";
$class = "Text_Wiki_Render_$format" . "_$rule";
if (! class_exists($class)) {
$loc = $this->findFile('render', $file);
if ($loc) {
include_once $loc;
} else {
return $this->error(
"Render rule '$rule' in format '$format' not found"
);
}
}
$this->renderObj[$rule] = new $class($this);
}
function loadFormatObj($format)
{
$format = ucwords(strtolower($format));
$file = $format . '.php';
$class = "Text_Wiki_Render_$format";
if (! class_exists($class)) {
$loc = $this->findFile('render', $file);
if ($loc) {
include_once $loc;
} else {
return $this->error(
"Rendering format class '$class' not found"
);
}
}
$this->formatObj[$format] = new $class($this);
}
function addPath($type, $dir)
{
$dir = $this->fixPath($dir);
if (! isset($this->path[$type])) {
$this->path[$type] = array($dir);
} else {
array_unshift($this->path[$type], $dir);
}
}
function getPath($type = null)
{
if (is_null($type)) {
return $this->path;
} elseif (! isset($this->path[$type])) {
return array();
} else {
return $this->path[$type];
}
}
function findFile($type, $file)
{
$set = $this->getPath($type);
foreach ($set as $path) {
$fullname = $path . $file;
if (file_exists($fullname) && is_readable($fullname)) {
return $fullname;
}
}
return false;
}
function fixPath($path)
{
$len = strlen($this->_dirSep);
if (! empty($path) &&
substr($path, -1 * $len, $len) != $this->_dirSep) {
return $path . $this->_dirSep;
} else {
return $path;
}
}
function &error($message)
{
die($message);
}
function isError(&$obj)
{
return ( @get_class($obj) == 'PEAR_Error' );
}
}
?>