Initial commit

content/inc/Parsing/ParserMode/Acronym.php

@@ -0,0 +1,68 @@
+<?php
+
+namespace dokuwiki\Parsing\ParserMode;
+
+class Acronym extends AbstractMode
+{
+    // A list
+    protected $acronyms = array();
+    protected $pattern = '';
+
+    /**
+     * Acronym constructor.
+     *
+     * @param string[] $acronyms
+     */
+    public function __construct($acronyms)
+    {
+        usort($acronyms, array($this,'compare'));
+        $this->acronyms = $acronyms;
+    }
+
+    /** @inheritdoc */
+    public function preConnect()
+    {
+        if (!count($this->acronyms)) return;
+
+        $bound = '[\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]';
+        $acronyms = array_map(['\\dokuwiki\\Parsing\\Lexer\\Lexer', 'escape'], $this->acronyms);
+        $this->pattern = '(?<=^|'.$bound.')(?:'.join('|', $acronyms).')(?='.$bound.')';
+    }
+
+    /** @inheritdoc */
+    public function connectTo($mode)
+    {
+        if (!count($this->acronyms)) return;
+
+        if (strlen($this->pattern) > 0) {
+            $this->Lexer->addSpecialPattern($this->pattern, $mode, 'acronym');
+        }
+    }
+
+    /** @inheritdoc */
+    public function getSort()
+    {
+        return 240;
+    }
+
+    /**
+     * sort callback to order by string length descending
+     *
+     * @param string $a
+     * @param string $b
+     *
+     * @return int
+     */
+    protected function compare($a, $b)
+    {
+        $a_len = strlen($a);
+        $b_len = strlen($b);
+        if ($a_len > $b_len) {
+            return -1;
+        } elseif ($a_len < $b_len) {
+            return 1;
+        }
+
+        return 0;
+    }
+}