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parser-parsedown: Add sub/superscript

This commit is contained in:
Starbeamrainbowlabs 2020-05-23 18:44:55 +01:00
parent 69cbda5e79
commit 764680b3c3
Signed by: sbrl
GPG key ID: 1BE5172E637709C2

View file

@ -496,19 +496,37 @@ class PeppermintParsedown extends ParsedownExtra
parent::__construct();
// Prioritise our internal link parsing over the regular link parsing
array_unshift($this->InlineTypes["["], "InternalLink");
$this->addInlineType("[", "InternalLink", true);
// Prioritise the checkbox handling - this is fine 'cause it doesn't step on InternalLink's toes
array_unshift($this->InlineTypes["["], "Checkbox");
$this->addInlineType("[", "Checkbox", true);
// Prioritise our image parser over the regular image parser
array_unshift($this->InlineTypes["!"], "ExtendedImage");
$this->addInlineType("!", "ExtendedImage", true);
$this->inlineMarkerList .= "{=";
if(!isset($this->InlineTypes["{"]) or !is_array($this->InlineTypes["{"]))
$this->InlineTypes["{"] = [];
if(!isset($this->InlineTypes["="]) or !is_array($this->InlineTypes["="]))
$this->InlineTypes["="] = [];
$this->InlineTypes["{"][] = "Template";
$this->InlineTypes["="][] = "Mark";
$this->addInlineType("{", "Template");
$this->addInlineType("=", "Mark");
$this->addInlineType("^", "Superscript");
$this->addInlineType("~", "Subscript");
}
/**
* Helper method to add an inline type.
* @param string $char The char to match against.
* @param string $function_id The name bit of the function to call.
* @param boolean $before_others Whether to prioritise this function over other existing ones (default: false).
*/
protected function addInlineType(string $char, string $function_id, bool $before_others = false) {
if(mb_strlen($char) > 1)
throw new Exception("Error: '$char' is longer than a single character.");
if(!isset($this->InlineTypes[$char]) or !is_array($this->InlineTypes[$char]))
$this->InlineTypes[$char] = [];
if(strpos($this->inlineMarkerList, $char) === false)
$this->inlineMarkerList .= $char;
if(!$before_others)
$this->InlineTypes[$char][] = $function_id;
else
array_unshift($this->InlineTypes[$char], $function_id);
}
/*
@ -781,7 +799,59 @@ class PeppermintParsedown extends ParsedownExtra
]
]
];
return $result;
}
/*
* ██████ ██ ██ ██████ ██ ██████ ██ ██ ██████ ███████ ██████
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
* ███████ ██ ██ ██████ ██ ███████ ██ ██ ██████ █████ ██████
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
* ██████ ██████ ██████ ██ ██████ ██████ ██ ███████ ██ ██
*
* ██████ ██████ ██████ ██ ██████ ████████
* ██ ██ ██ ██ ██ ██ ██ ██
* ███████ ██ ██████ ██ ██████ ██
* ██ ██ ██ ██ ██ ██ ██
* ██████ ██████ ██ ██ ██ ██ ██
*/
protected function inlineSuperscript($fragment) {
if(preg_match('/\^([^^]+)\^/', $fragment["text"], $matches) !== 1)
return;
$superscript_text = $matches[1];
$result = [
"extent" => strlen($matches[0]),
"element" => [
"name" => "sup",
"handler" => [
"function" => "lineElements",
"argument" => $superscript_text,
"destination" => "elements"
]
]
];
return $result;
}
protected function inlineSubscript($fragment) {
if(preg_match('/~([^~]+)~/', $fragment["text"], $matches) !== 1)
return;
$subscript_text = $matches[1];
$result = [
"extent" => strlen($matches[0]),
"element" => [
"name" => "sub",
"handler" => [
"function" => "lineElements",
"argument" => $subscript_text,
"destination" => "elements"
]
]
];
return $result;
}