/lib/plugins/syntax.php
PHP | 310 lines | 113 code | 38 blank | 159 comment | 17 complexity | a07c5b37ef8ea86e8e5fae7b18c13c56 MD5 | raw file
- <?php
- /**
- * Syntax Plugin Prototype
- *
- * @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
- * @author Andreas Gohr <andi@splitbrain.org>
- */
- // must be run within Dokuwiki
- if(!defined('DOKU_INC')) die();
- /**
- * All DokuWiki plugins to extend the parser/rendering mechanism
- * need to inherit from this class
- */
- class DokuWiki_Syntax_Plugin extends Doku_Parser_Mode {
- var $allowedModesSetup = false;
- var $localised = false; // set to true by setupLocale() after loading language dependent strings
- var $lang = array(); // array to hold language dependent strings, best accessed via ->getLang()
- var $configloaded = false; // set to true by loadConfig() after loading plugin configuration variables
- var $conf = array(); // array to hold plugin settings, best accessed via ->getConf()
- /**
- * General Info
- *
- * Needs to return a associative array with the following values:
- *
- * author - Author of the plugin
- * email - Email address to contact the author
- * date - Last modified date of the plugin in YYYY-MM-DD format
- * name - Name of the plugin
- * desc - Short description of the plugin (Text only)
- * url - Website with more information on the plugin (eg. syntax description)
- */
- function getInfo(){
- $parts = explode('_',get_class($this));
- $info = DOKU_PLUGIN.'/'.$parts[2].'/plugin.info.txt';
- if(@file_exists($info)) return confToHash($info);
- trigger_error('getInfo() not implemented in '.get_class($this).' and '.$info.' not found', E_USER_WARNING);
- return array();
- }
- /**
- * Syntax Type
- *
- * Needs to return one of the mode types defined in $PARSER_MODES in parser.php
- */
- function getType(){
- trigger_error('getType() not implemented in '.get_class($this), E_USER_WARNING);
- }
- /**
- * Allowed Mode Types
- *
- * Defines the mode types for other dokuwiki markup that maybe nested within the
- * plugin's own markup. Needs to return an array of one or more of the mode types
- * defined in $PARSER_MODES in parser.php
- */
- function getAllowedTypes() {
- return array();
- }
- /**
- * Paragraph Type
- *
- * Defines how this syntax is handled regarding paragraphs. This is important
- * for correct XHTML nesting. Should return one of the following:
- *
- * 'normal' - The plugin can be used inside paragraphs
- * 'block' - Open paragraphs need to be closed before plugin output
- * 'stack' - Special case. Plugin wraps other paragraphs.
- *
- * @see Doku_Handler_Block
- */
- function getPType(){
- return 'normal';
- }
- /**
- * Handler to prepare matched data for the rendering process
- *
- * This function can only pass data to render() via its return value - render()
- * may be not be run during the object's current life.
- *
- * Usually you should only need the $match param.
- *
- * @param string $match The text matched by the patterns
- * @param int $state The lexer state for the match
- * @param int $pos The character position of the matched text
- * @param Doku_Handler $handler Reference to the Doku_Handler object
- * @return array Return an array with all data you want to use in render
- */
- function handle($match, $state, $pos, Doku_Handler &$handler){
- trigger_error('handle() not implemented in '.get_class($this), E_USER_WARNING);
- }
- /**
- * Handles the actual output creation.
- *
- * The function must not assume any other of the classes methods have been run
- * during the object's current life. The only reliable data it receives are its
- * parameters.
- *
- * The function should always check for the given output format and return false
- * when a format isn't supported.
- *
- * $renderer contains a reference to the renderer object which is
- * currently handling the rendering. You need to use it for writing
- * the output. How this is done depends on the renderer used (specified
- * by $format
- *
- * The contents of the $data array depends on what the handler() function above
- * created
- *
- * @param $format string output format being rendered
- * @param $renderer Doku_Renderer reference to the current renderer object
- * @param $data array data created by handler()
- * @return boolean rendered correctly?
- */
- function render($format, Doku_Renderer &$renderer, $data) {
- trigger_error('render() not implemented in '.get_class($this), E_USER_WARNING);
- }
- /**
- * There should be no need to override these functions
- */
- function accepts($mode) {
- if (!$this->allowedModesSetup) {
- global $PARSER_MODES;
- $allowedModeTypes = $this->getAllowedTypes();
- foreach($allowedModeTypes as $mt) {
- $this->allowedModes = array_merge($this->allowedModes, $PARSER_MODES[$mt]);
- }
- $idx = array_search(substr(get_class($this), 7), (array) $this->allowedModes);
- if ($idx !== false) {
- unset($this->allowedModes[$idx]);
- }
- $this->allowedModesSetup = true;
- }
- return parent::accepts($mode);
- }
- // plugin introspection methods
- // extract from class name, format = <plugin type>_plugin_<name>[_<component name>]
- function getPluginType() { list($t) = explode('_', get_class($this), 2); return $t; }
- function getPluginName() { list($t, $p, $n) = explode('_', get_class($this), 4); return $n; }
- /**
- * Get the name of the component of the current class
- *
- * @return string component name
- */
- function getPluginComponent() { list($t, $p, $n, $c) = explode('_', get_class($this), 4); return (isset($c)?$c:''); }
- // localisation methods
- /**
- * getLang($id)
- *
- * use this function to access plugin language strings
- * to try to minimise unnecessary loading of the strings when the plugin doesn't require them
- * e.g. when info plugin is querying plugins for information about themselves.
- *
- * @param string $id id of the string to be retrieved
- * @return string string in appropriate language or english if not available
- */
- function getLang($id) {
- if (!$this->localised) $this->setupLocale();
- return (isset($this->lang[$id]) ? $this->lang[$id] : '');
- }
- /**
- * locale_xhtml($id)
- *
- * retrieve a language dependent wiki page and pass to xhtml renderer for display
- * plugin equivalent of p_locale_xhtml()
- *
- * @param string $id id of language dependent wiki page
- * @return string parsed contents of the wiki page in xhtml format
- */
- function locale_xhtml($id) {
- return p_cached_output($this->localFN($id));
- }
- /**
- * localFN($id)
- * prepends appropriate path for a language dependent filename
- * plugin equivalent of localFN()
- */
- function localFN($id) {
- global $conf;
- $plugin = $this->getPluginName();
- $file = DOKU_CONF.'/plugin_lang/'.$plugin.'/'.$conf['lang'].'/'.$id.'.txt';
- if (!@file_exists($file)){
- $file = DOKU_PLUGIN.$plugin.'/lang/'.$conf['lang'].'/'.$id.'.txt';
- if(!@file_exists($file)){
- //fall back to english
- $file = DOKU_PLUGIN.$plugin.'/lang/en/'.$id.'.txt';
- }
- }
- return $file;
- }
- /**
- * setupLocale()
- * reads all the plugins language dependent strings into $this->lang
- * this function is automatically called by getLang()
- */
- function setupLocale() {
- if ($this->localised) return;
- global $conf; // definitely don't invoke "global $lang"
- $path = DOKU_PLUGIN.$this->getPluginName().'/lang/';
- $lang = array();
- // don't include once, in case several plugin components require the same language file
- @include($path.'en/lang.php');
- if ($conf['lang'] != 'en') @include($path.$conf['lang'].'/lang.php');
- $this->lang = $lang;
- $this->localised = true;
- }
- // configuration methods
- /**
- * getConf($setting)
- *
- * use this function to access plugin configuration variables
- */
- function getConf($setting) {
- if(!$this->configloaded) { $this->loadConfig(); }
- return $this->conf[$setting];
- }
- /**
- * loadConfig()
- * merges the plugin's default settings with any local settings
- * this function is automatically called through getConf()
- */
- function loadConfig() {
- global $conf;
- $defaults = $this->readDefaultSettings();
- $plugin = $this->getPluginName();
- foreach($defaults as $key => $value) {
- if(isset($conf['plugin'][$plugin][$key])) continue;
- $conf['plugin'][$plugin][$key] = $value;
- }
- $this->configloaded = true;
- $this->conf =& $conf['plugin'][$plugin];
- }
- /**
- * read the plugin's default configuration settings from conf/default.php
- * this function is automatically called through getConf()
- *
- * @return array setting => value
- */
- function readDefaultSettings() {
- $path = DOKU_PLUGIN.$this->getPluginName().'/conf/';
- $conf = array();
- if(@file_exists($path.'default.php')) {
- include($path.'default.php');
- }
- return $conf;
- }
- /**
- * Loads a given helper plugin (if enabled)
- *
- * @author Esther Brunner <wikidesign@gmail.com>
- *
- * @param string $name name of plugin to load
- * @param bool $msg if a message should be displayed in case the plugin is not available
- *
- * @return object helper plugin object
- */
- function loadHelper($name, $msg = true) {
- if(!plugin_isdisabled($name)) {
- $obj = plugin_load('helper', $name);
- } else {
- $obj = null;
- }
- if(is_null($obj) && $msg) msg("Helper plugin $name is not available or invalid.", -1);
- return $obj;
- }
- /**
- * Allow the plugin to prevent DokuWiki from reusing an instance
- *
- * @return bool false if the plugin has to be instantiated
- */
- function isSingleton() {
- return true;
- }
- }
- //Setup VIM: ex: et ts=4 :