Adding dw2pdf version 2023-11-25 (48253f1).
Signed-off-by: Daniel Baumann <daniel@debian.org>
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292
plugins/55/dw2pdf/renderer.php
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292
plugins/55/dw2pdf/renderer.php
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<?php
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// phpcs:disable: PSR1.Methods.CamelCapsMethodName.NotCamelCaps
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// phpcs:disable: PSR2.Methods.MethodDeclaration.Underscore
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/**
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* DokuWiki Plugin dw2pdf (Renderer Component)
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* Render xhtml suitable as input for mpdf library
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*
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* @license GPL 2 http://www.gnu.org/licenses/gpl-2.0.html
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* @author Andreas Gohr <gohr@cosmocode.de>
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*/
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class renderer_plugin_dw2pdf extends Doku_Renderer_xhtml
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{
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private $lastHeaderLevel = -1;
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private $originalHeaderLevel = 0;
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private $difference = 0;
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private static $header_count = [];
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private static $previous_level = 0;
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/**
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* Stores action instance
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*
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* @var action_plugin_dw2pdf
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*/
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private $actioninstance;
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/**
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* load action plugin instance
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*/
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public function __construct()
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{
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$this->actioninstance = plugin_load('action', 'dw2pdf');
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}
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public function document_start()
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{
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global $ID;
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parent::document_start();
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//ancher for rewritten links to included pages
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$check = false;
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$pid = sectionID($ID, $check);
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$this->doc .= "<a name=\"{$pid}__\">";
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$this->doc .= "</a>";
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self::$header_count[1] = $this->actioninstance->getCurrentBookChapter();
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}
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/**
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* Make available as XHTML replacement renderer
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*
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* @param $format
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* @return bool
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*/
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public function canRender($format)
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{
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if ($format == 'xhtml') {
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return true;
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}
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return false;
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}
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/**
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* Simplified header printing with PDF bookmarks
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*
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* @param string $text
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* @param int $level from 1 (highest) to 6 (lowest)
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* @param int $pos
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*/
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public function header($text, $level, $pos, $returnonly = false)
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{
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//skip empty headlines
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if (!$text) {
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return;
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}
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global $ID;
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$hid = $this->_headerToLink($text, true);
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//only add items within global configured levels (doesn't check the pdf toc settings)
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$this->toc_additem($hid, $text, $level);
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$check = false;
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$pid = sectionID($ID, $check);
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$hid = $pid . '__' . $hid;
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// retrieve numbered headings option
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$isnumberedheadings = $this->actioninstance->getExportConfig('headernumber');
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$header_prefix = "";
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if ($isnumberedheadings) {
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if ($level > 0) {
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if (self::$previous_level > $level) {
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for ($i = $level + 1; $i <= self::$previous_level; $i++) {
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self::$header_count[$i] = 0;
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}
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}
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}
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self::$header_count[$level]++;
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// $header_prefix = "";
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for ($i = 1; $i <= $level; $i++) {
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$header_prefix .= self::$header_count[$i] . ".";
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}
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}
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// add PDF bookmark
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$bookmark = '';
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$maxbookmarklevel = $this->actioninstance->getExportConfig('maxbookmarks');
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// 0: off, 1-6: show down to this level
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if ($maxbookmarklevel && $maxbookmarklevel >= $level) {
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$bookmarklevel = $this->calculateBookmarklevel($level);
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$bookmark = sprintf(
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'<bookmark content="%s %s" level="%d" />',
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$header_prefix,
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$this->_xmlEntities($text),
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$bookmarklevel
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);
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}
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// print header
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$this->doc .= DOKU_LF . "<h$level>$bookmark";
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$this->doc .= $header_prefix . "<a name=\"$hid\">";
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$this->doc .= $this->_xmlEntities($text);
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$this->doc .= "</a>";
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$this->doc .= "</h$level>" . DOKU_LF;
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self::$previous_level = $level;
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}
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/**
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* Bookmark levels might increase maximal +1 per level.
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* (note: levels start at 1, bookmarklevels at 0)
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*
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* @param int $level 1 (highest) to 6 (lowest)
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* @return int
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*/
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protected function calculateBookmarklevel($level)
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{
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if ($this->lastHeaderLevel == -1) {
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$this->lastHeaderLevel = $level;
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}
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$step = $level - $this->lastHeaderLevel;
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if ($step > 1) {
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$this->difference += $step - 1;
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}
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if ($step < 0) {
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$this->difference = min($this->difference, $level - $this->originalHeaderLevel);
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$this->difference = max($this->difference, 0);
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}
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$bookmarklevel = $level - $this->difference;
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if ($step > 1) {
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$this->originalHeaderLevel = $bookmarklevel;
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}
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$this->lastHeaderLevel = $level;
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return $bookmarklevel - 1; //zero indexed
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}
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/**
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* Render a page local link
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*
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* // modified copy of parent function
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*
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* @param string $hash hash link identifier
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* @param string $name name for the link
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* @param bool $returnonly
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* @return string|void
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*
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* @see Doku_Renderer_xhtml::locallink
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*/
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public function locallink($hash, $name = null, $returnonly = false)
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{
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global $ID;
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$name = $this->_getLinkTitle($name, $hash, $isImage);
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$hash = $this->_headerToLink($hash);
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$title = $ID . ' ↵';
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$check = false;
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$pid = sectionID($ID, $check);
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$this->doc .= '<a href="#' . $pid . '__' . $hash . '" title="' . $title . '" class="wikilink1">';
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$this->doc .= $name;
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$this->doc .= '</a>';
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}
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/**
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* Wrap centered media in a div to center it
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*
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* @param string $src media ID
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* @param string $title descriptive text
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* @param string $align left|center|right
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* @param int $width width of media in pixel
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* @param int $height height of media in pixel
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* @param string $cache cache|recache|nocache
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* @param bool $render should the media be embedded inline or just linked
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* @return string
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*/
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public function _media(
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$src,
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$title = null,
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$align = null,
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$width = null,
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$height = null,
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$cache = null,
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$render = true
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) {
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$out = '';
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if ($align == 'center') {
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$out .= '<div align="center" style="text-align: center">';
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}
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$out .= parent::_media($src, $title, $align, $width, $height, $cache, $render);
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if ($align == 'center') {
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$out .= '</div>';
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}
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return $out;
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}
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/**
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* hover info makes no sense in PDFs, so drop acronyms
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*
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* @param string $acronym
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*/
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public function acronym($acronym)
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{
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$this->doc .= $this->_xmlEntities($acronym);
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}
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/**
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* reformat links if needed
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*
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* @param array $link
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* @return string
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*/
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public function _formatLink($link)
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{
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// for internal links contains the title the pageid
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if (in_array($link['title'], $this->actioninstance->getExportedPages())) {
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[/* url */, $hash] = sexplode('#', $link['url'], 2, '');
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$check = false;
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$pid = sectionID($link['title'], $check);
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$link['url'] = "#" . $pid . '__' . $hash;
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}
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// prefix interwiki links with interwiki icon
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if ($link['name'][0] != '<' && preg_match('/\binterwiki iw_(.\w+)\b/', $link['class'], $m)) {
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if (file_exists(DOKU_INC . 'lib/images/interwiki/' . $m[1] . '.png')) {
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$img = DOKU_BASE . 'lib/images/interwiki/' . $m[1] . '.png';
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} elseif (file_exists(DOKU_INC . 'lib/images/interwiki/' . $m[1] . '.gif')) {
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$img = DOKU_BASE . 'lib/images/interwiki/' . $m[1] . '.gif';
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} else {
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$img = DOKU_BASE . 'lib/images/interwiki.png';
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}
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$link['name'] = sprintf(
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'<img src="%s" width="16" height="16" style="vertical-align: middle" class="%s" />%s',
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$img,
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$link['class'],
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$link['name']
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);
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}
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return parent::_formatLink($link);
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}
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/**
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* no obfuscation for email addresses
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*
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* @param string $address
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* @param null $name
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* @param bool $returnonly
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* @return string|void
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*/
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public function emaillink($address, $name = null, $returnonly = false)
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{
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global $conf;
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$old = $conf['mailguard'];
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$conf['mailguard'] = 'none';
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parent::emaillink($address, $name, $returnonly);
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$conf['mailguard'] = $old;
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}
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}
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