Remove text highlighting from BBCode::convert

- Move code blocks escaping from BBCode::toMarkdown to BBCode::convert
- Use "language-" class prefix for expected syntax highlighting

diff --git a/src/Content/Text/BBCode.php b/src/Content/Text/BBCode.php
index 2dc13ae..ef527f8 100644 (file)
--- a/src/Content/Text/BBCode.php
+++ b/src/Content/Text/BBCode.php
@@ -1227,6 +1227,22 @@ class BBCode extends BaseObject
                        return $return;
                };
 
+               // Extracting multi-line code blocks before the whitespace processing
+               $codeblocks = [];
+
+               $text = preg_replace_callback("#\[code(?:=([^\]]*))?\](.*?)\[\/code\]#is",
+                       function ($matches) use (&$codeblocks) {
+                               $return = $matches[0];
+                               if (strpos($matches[2], "\n") !== false) {
+                                       $return = '#codeblock-' . count($codeblocks) . '#';
+
+                                       $codeblocks[] =  '<pre><code class="language-' . trim($matches[1]) . '">' . trim($matches[2], "\n\r") . '</code></pre>';
+                               }
+                               return $return;
+                       },
+                       $text
+               );
+
                // Hide all [noparse] contained bbtags by spacefying them
                // POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
 
@@ -1273,11 +1289,6 @@ class BBCode extends BaseObject
                        $text = preg_replace("/\[share(.*?)avatar\s?=\s?'.*?'\s?(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", "\n[share$1$2]$3[/share]", $text);
                }
 
-               // Check for [code] text here, before the linefeeds are messed with.
-               // The highlighter will unescape and re-escape the content.
-               if (strpos($text, '[code=') !== false) {
-                       $text = preg_replace_callback("/\[code=(.*?)\](.*?)\[\/code\]/ism", 'self::textHighlightCallback', $text);
-               }
                // Convert new line chars to html <br /> tags
 
                // nlbr seems to be hopelessly messed up
@@ -1771,6 +1782,18 @@ class BBCode extends BaseObject
                        $text = self::interpolateSavedImagesIntoItemBody($text, $saved_image);
                }
 
+               // Restore code blocks
+               $text = preg_replace_callback('/#codeblock-([0-9]+)#/iU',
+                       function ($matches) use ($codeblocks) {
+                               $return = $matches[0];
+                               if (isset($codeblocks[intval($matches[1])])) {
+                                       $return = $codeblocks[$matches[1]];
+                               }
+                               return $return;
+                       },
+                       $text
+               );
+
                // Clean up the HTML by loading and saving the HTML with the DOM.
                // Bad structured html can break a whole page.
                // For performance reasons do it only with ativated item cache or at export.
@@ -1905,23 +1928,6 @@ class BBCode extends BaseObject
                // Converting images with size parameters to simple images. Markdown doesn't know it.
                $text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $text);
 
-               // Extracting multi-line code blocks before the whitespace processing/code highlighter in self::convert()
-               $codeblocks = [];
-
-               $text = preg_replace_callback("#\[code(?:=([^\]]*))?\](.*?)\[\/code\]#is",
-                       function ($matches) use (&$codeblocks) {
-                               $return = $matches[0];
-                               if (strpos($matches[2], "\n") !== false) {
-                                       $return = '#codeblock-' . count($codeblocks) . '#';
-
-                                       $prefix = '````' . $matches[1] . PHP_EOL;
-                                       $codeblocks[] = $prefix . trim($matches[2]) . PHP_EOL . '````';
-                               }
-                               return $return;
-                       },
-                       $text
-               );
-
                // Convert it to HTML - don't try oembed
                if ($for_diaspora) {
                        $text = self::convert($text, false, 3);
@@ -1975,18 +1981,6 @@ class BBCode extends BaseObject
                        );
                }
 
-               // Restore code blocks
-               $text = preg_replace_callback('/#codeblock-([0-9]+)#/iU',
-                       function ($matches) use ($codeblocks) {
-                               $return = '';
-                               if (isset($codeblocks[intval($matches[1])])) {
-                                       $return = $codeblocks[$matches[1]];
-                               }
-                               return $return;
-                       },
-                       $text
-               );
-
                Addon::callHooks('bb2diaspora', $text);
 
                return $text;

diff --git a/src/Content/Text/HTML.php b/src/Content/Text/HTML.php
index 4ec85b0..844b111 100644 (file)
--- a/src/Content/Text/HTML.php
+++ b/src/Content/Text/HTML.php
@@ -122,7 +122,7 @@ class HTML
                // Removing code blocks before the whitespace removal processing below
                $codeblocks = [];
                $message = preg_replace_callback(
-                       '#<pre><code(?: class="([^"]*)")?>(.*)</code></pre>#iUs',
+                       '#<pre><code(?: class="language-([^"]*)")?>(.*)</code></pre>#iUs',
                        function ($matches) use (&$codeblocks) {
                                $return = '[codeblock-' . count($codeblocks) . ']';
 

diff --git a/src/Content/Text/Markdown.php b/src/Content/Text/Markdown.php
index 71d1a7b..5450f8a 100644 (file)
--- a/src/Content/Text/Markdown.php
+++ b/src/Content/Text/Markdown.php
@@ -32,6 +32,7 @@ class Markdown extends BaseObject
 
                $MarkdownParser = new MarkdownExtra();
                $MarkdownParser->hard_wrap = $hardwrap;
+               $MarkdownParser->code_class_prefix = 'language-';
                $html = $MarkdownParser->transform($text);
 
                self::getApp()->save_timestamp($stamp1, "parser");