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Auto-generate preconfigured class attributes #355

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Auto-generate preconfigured class attributes #355

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27 changes: 27 additions & 0 deletions Michelf/Markdown.php
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Original file line number Diff line number Diff line change
Expand Up @@ -125,6 +125,8 @@ public static function defaultTransform($text) {
* @var bool
*/
public $enhanced_ordered_list = false;

public $class_attributes = null;

/**
* Parser implementation
Expand Down Expand Up @@ -752,6 +754,7 @@ protected function _doAnchors_reference_callback($matches) {
$result .= " title=\"$title\"";
}

$result .= $this->build_class_attributes("a");
$link_text = $this->runSpanGamut($link_text);
$result .= ">$link_text</a>";
$result = $this->hashPart($result);
Expand Down Expand Up @@ -786,6 +789,7 @@ protected function _doAnchors_inline_callback($matches) {
$result .= " title=\"$title\"";
}

$result .= $this->build_class_attributes("a");
$link_text = $this->runSpanGamut($link_text);
$result .= ">$link_text</a>";

Expand Down Expand Up @@ -869,6 +873,7 @@ protected function _doImages_reference_callback($matches) {
$title = $this->encodeAttribute($title);
$result .= " title=\"$title\"";
}
$result .= $this->build_class_attributes("img");
$result .= $this->empty_element_suffix;
$result = $this->hashPart($result);
} else {
Expand Down Expand Up @@ -897,6 +902,7 @@ protected function _doImages_inline_callback($matches) {
$title = $this->encodeAttribute($title);
$result .= " title=\"$title\""; // $title already quoted
}
$result .= $this->build_class_attributes("img");
$result .= $this->empty_element_suffix;

return $this->hashPart($result);
Expand Down Expand Up @@ -1906,4 +1912,25 @@ protected function unhash($text) {
protected function _unhash_callback($matches) {
return $this->html_hashes[$matches[0]];
}

/**
* Build html class attribute as preconfigured with the class_attributes field
*
* @param $tag string
* @return string
*/
protected function build_class_attributes($tag) {
if($this->class_attributes === null || !isset($this->class_attributes[$tag])) {
return "";
}

$attributes = $this->class_attributes[$tag];
if(is_string($attributes)) {
return ' class="' . $attributes . '"';
} else if(is_array($attributes)) {
return ' class="' . implode(' ', $attributes) . '"';
} else {
return '';
}
}
}