はじまりの大地
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miteruzo
@@ -0,0 +1,387 @@
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<?php
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/**
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* Move Plugin Rewriting Handler
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*
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* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
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* @author Michael Hamann <michael@content-space.de>
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*/
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// must be run within Dokuwiki
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if(!defined('DOKU_INC')) die();
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/**
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* Handler class for move. It does the actual rewriting of the content.
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*
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* Note: This is not actually a valid DokuWiki Helper plugin and can not be loaded via plugin_load()
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*/
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class helper_plugin_move_handler extends DokuWiki_Plugin {
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public $calls = '';
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protected $id;
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protected $ns;
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protected $origID;
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protected $origNS;
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protected $page_moves;
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protected $media_moves;
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protected $handlers;
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/**
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* Do not allow re-using instances.
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*
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* @return bool false - the handler must not be re-used.
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*/
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public function isSingleton() {
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return false;
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}
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/**
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* Initialize the move handler.
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*
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* @param string $id The id of the text that is passed to the handler
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* @param string $original The name of the original ID of this page. Same as $id if this page wasn't moved
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* @param array $page_moves Moves that shall be considered in the form [[$old,$new],...] ($old can be $original)
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* @param array $media_moves Moves of media files that shall be considered in the form $old => $new
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* @param array $handlers Handlers for plugin content in the form $plugin_name => $callback
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*/
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public function init($id, $original, $page_moves, $media_moves, $handlers) {
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$this->id = $id;
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$this->ns = getNS($id);
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$this->origID = $original;
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$this->origNS = getNS($original);
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$this->page_moves = $page_moves;
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$this->media_moves = $media_moves;
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$this->handlers = $handlers;
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}
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/**
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* Go through the list of moves and find the new value for the given old ID
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*
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* @param string $old the old, full qualified ID
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* @param string $type 'media' or 'page'
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* @throws Exception on bad argument
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* @return string the new full qualified ID
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*/
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public function resolveMoves($old, $type) {
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global $conf;
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if($type != 'media' && $type != 'page') throw new Exception('Not a valid type');
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$old = resolve_id($this->origNS, $old, false);
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if($type == 'page') {
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// FIXME this simply assumes that the link pointed to :$conf['start'], but it could also point to another page
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// resolve_pageid does a lot more here, but we can't really assume this as the original pages might have been
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// deleted already
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if(substr($old, -1) === ':' || $old === '') $old .= $conf['start'];
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$moves = $this->page_moves;
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} else {
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$moves = $this->media_moves;
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}
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$old = cleanID($old);
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foreach($moves as $move) {
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if($move[0] == $old) {
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$old = $move[1];
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}
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}
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return $old; // this is now new
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}
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/**
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* if the old link ended with a colon and the new one is a start page, adjust
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*
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* @param $relold string the old, possibly relative ID
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* @param $new string the new, full qualified ID
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* @param $type 'media' or 'page'
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* @return string
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*/
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protected function _nsStartCheck($relold, $new, $type) {
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global $conf;
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if($type == 'page' && substr($relold, -1) == ':') {
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$len = strlen($conf['start']);
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if($new == $conf['start']) {
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$new = '.:';
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} else if(substr($new, -1 * ($len + 1)) == ':' . $conf['start']) {
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$new = substr($new, 0, -1 * $len);
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}
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}
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return $new;
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}
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/**
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* Construct a new ID relative to the current page's location
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*
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* Uses a relative link only if the original was relative, too. This function is for
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* pages and media files.
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*
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* @param string $relold the old, possibly relative ID
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* @param string $new the new, full qualified ID
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* @param string $type 'media' or 'page'
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* @throws Exception on bad argument
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* @return string
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*/
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public function relativeLink($relold, $new, $type) {
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global $conf;
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if($type != 'media' && $type != 'page') throw new Exception('Not a valid type');
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// first check if the old link still resolves
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$exists = false;
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$old = $relold;
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if($type == 'page') {
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resolve_pageid($this->ns, $old, $exists);
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// Work around bug in DokuWiki 2020-07-29 where resolve_pageid doesn't append the start page to a link to
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// the root.
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if ($old === '') {
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$old = $conf['start'];
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}
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} else {
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resolve_mediaid($this->ns, $old, $exists);
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}
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if($old == $new) {
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return $relold; // old link still resolves, keep as is
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}
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if($conf['useslash']) $relold = str_replace('/', ':', $relold);
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// check if the link was relative
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if(strpos($relold, ':') === false ||$relold[0] == '.') {
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$wasrel = true;
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} else {
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$wasrel = false;
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}
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// if it wasn't relative then, leave it absolute now, too
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if(!$wasrel) {
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if($this->ns && !getNS($new)) $new = ':' . $new;
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$new = $this->_nsStartCheck($relold, $new, $type);
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return $new;
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}
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// split the paths and see how much common parts there are
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$selfpath = explode(':', $this->ns);
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$goalpath = explode(':', getNS($new));
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$min = min(count($selfpath), count($goalpath));
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for($common = 0; $common < $min; $common++) {
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if($selfpath[$common] != $goalpath[$common]) break;
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}
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// we now have the non-common part and a number of uppers
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$ups = max(count($selfpath) - $common, 0);
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$remainder = array_slice($goalpath, $common);
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$upper = $ups ? array_fill(0, $ups, '..:') : array();
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// build the new relative path
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$newrel = join(':', $upper);
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if($remainder) $newrel .= join(':', $remainder) . ':';
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$newrel .= noNS($new);
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$newrel = str_replace('::', ':', trim($newrel, ':'));
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if($newrel[0] != '.' && $this->ns && getNS($newrel)) $newrel = '.' . $newrel;
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// if the old link ended with a colon and the new one is a start page, adjust
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$newrel = $this->_nsStartCheck($relold,$newrel,$type);
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// don't use relative paths if it is ridicoulus:
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if(strlen($newrel) > strlen($new)) {
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$newrel = $new;
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if($this->ns && !getNS($new)) $newrel = ':' . $newrel;
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$newrel = $this->_nsStartCheck($relold,$newrel,$type);
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}
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return $newrel;
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}
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/**
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* Handle camelcase links
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*
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* @param string $match The text match
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* @param string $state The starte of the parser
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* @param int $pos The position in the input
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* @return bool If parsing should be continued
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*/
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public function camelcaselink($match, $state, $pos) {
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$oldID = cleanID($this->origNS . ':' . $match);
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$newID = $this->resolveMoves($oldID, 'page');
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$newNS = getNS($newID);
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if($oldID == $newID || $this->origNS == $newNS) {
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// link is still valid as is
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$this->calls .= $match;
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} else {
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if(noNS($oldID) == noNS($newID)) {
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// only namespace changed, keep CamelCase in link
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$this->calls .= "[[$newNS:$match]]";
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} else {
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// all new, keep CamelCase in title
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$this->calls .= "[[$newID|$match]]";
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}
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}
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return true;
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}
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/**
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* Handle rewriting of internal links
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*
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* @param string $match The text match
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* @param string $state The starte of the parser
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* @param int $pos The position in the input
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* @return bool If parsing should be continued
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*/
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public function internallink($match, $state, $pos) {
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// Strip the opening and closing markup
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$link = preg_replace(array('/^\[\[/', '/\]\]$/u'), '', $match);
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// Split title from URL
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$link = explode('|', $link, 2);
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if(!isset($link[1])) {
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$link[1] = null;
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} else if(preg_match('/^\{\{[^\}]+\}\}$/', $link[1])) {
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// If the title is an image, rewrite it
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$old_title = $link[1];
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$link[1] = $this->rewrite_media($link[1]);
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// do a simple replace of the first match so really only the id is changed and not e.g. the alignment
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$oldpos = strpos($match, $old_title);
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$oldlen = strlen($old_title);
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$match = substr_replace($match, $link[1], $oldpos, $oldlen);
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}
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$link[0] = trim($link[0]);
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//decide which kind of link it is
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if(preg_match('/^[a-zA-Z0-9\.]+>{1}.*$/u', $link[0])) {
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// Interwiki
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$this->calls .= $match;
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} elseif(preg_match('/^\\\\\\\\[^\\\\]+?\\\\/u', $link[0])) {
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// Windows Share
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$this->calls .= $match;
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} elseif(preg_match('#^([a-z0-9\-\.+]+?)://#i', $link[0])) {
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// external link (accepts all protocols)
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$this->calls .= $match;
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} elseif(preg_match('<' . PREG_PATTERN_VALID_EMAIL . '>', $link[0])) {
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// E-Mail (pattern above is defined in inc/mail.php)
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$this->calls .= $match;
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} elseif(preg_match('!^#.+!', $link[0])) {
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// local hash link
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$this->calls .= $match;
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} else {
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$id = $link[0];
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$hash = '';
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$parts = explode('#', $id, 2);
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if(count($parts) === 2) {
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$id = $parts[0];
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$hash = $parts[1];
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}
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$params = '';
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$parts = explode('?', $id, 2);
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if(count($parts) === 2) {
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$id = $parts[0];
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$params = $parts[1];
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}
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$new_id = $this->resolveMoves($id, 'page');
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$new_id = $this->relativeLink($id, $new_id, 'page');
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if($id == $new_id) {
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$this->calls .= $match;
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} else {
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if($params !== '') {
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$new_id .= '?' . $params;
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}
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if($hash !== '') {
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$new_id .= '#' . $hash;
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}
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if($link[1] != null) {
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$new_id .= '|' . $link[1];
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}
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$this->calls .= '[[' . $new_id . ']]';
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}
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}
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return true;
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}
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/**
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* Handle rewriting of media links
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*
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* @param string $match The text match
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* @param string $state The starte of the parser
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* @param int $pos The position in the input
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* @return bool If parsing should be continued
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*/
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public function media($match, $state, $pos) {
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$this->calls .= $this->rewrite_media($match);
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return true;
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}
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/**
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* Rewrite a media syntax
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*
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* @param string $match The text match of the media syntax
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* @return string The rewritten syntax
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*/
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protected function rewrite_media($match) {
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$p = Doku_Handler_Parse_Media($match);
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if($p['type'] == 'internalmedia') { // else: external media
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$new_src = $this->resolveMoves($p['src'], 'media');
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$new_src = $this->relativeLink($p['src'], $new_src, 'media');
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if($new_src !== $p['src']) {
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// do a simple replace of the first match so really only the id is changed and not e.g. the alignment
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$srcpos = strpos($match, $p['src']);
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$srclen = strlen($p['src']);
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return substr_replace($match, $new_src, $srcpos, $srclen);
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}
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}
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return $match;
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}
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/**
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* Handle rewriting of plugin syntax, calls the registered handlers
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*
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* @param string $match The text match
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* @param string $state The starte of the parser
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* @param int $pos The position in the input
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* @param string $pluginname The name of the plugin
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* @return bool If parsing should be continued
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*/
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public function plugin($match, $state, $pos, $pluginname) {
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if(isset($this->handlers[$pluginname])) {
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$this->calls .= call_user_func($this->handlers[$pluginname], $match, $state, $pos, $pluginname, $this);
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} else {
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$this->calls .= $match;
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}
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return true;
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}
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/**
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* Catchall handler for the remaining syntax
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*
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* @param string $name Function name that was called
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* @param array $params Original parameters
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* @return bool If parsing should be continue
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*/
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public function __call($name, $params) {
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if(count($params) == 3) {
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$this->calls .= $params[0];
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return true;
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} else {
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trigger_error('Error, handler function ' . hsc($name) . ' with ' . count($params) . ' parameters called which isn\'t implemented', E_USER_ERROR);
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return false;
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}
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}
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public function _finalize() {
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// remove padding that is added by the parser in parse()
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$this->calls = substr($this->calls, 1, -1);
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}
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}
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