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<?php
/*
* File: ratatoeskr/sys/textprocessors.php
* Manage text processors (functions that transform text to HTML) and implement some default ones.
*
* License:
* This file is part of Ratatöskr.
* Ratatöskr is licensed unter the MIT / X11 License.
* See "ratatoeskr/licenses/ratatoeskr" for more information.
*/
use Michelf\Markdown;
require_once(dirname(__FILE__) . "/utils.php");
/*
* Function: textprocessor_register
* Register a textprocessor.
*
* Parameters:
* $name - The name of the textprocessor
* $fx - The textprocessor function (function($input), returns HTML)
* $visible_in_backend - Should this textprocessor be visible in the backend? Defaults to True.
*/
function textprocessor_register($name, $fx, $visible_in_backend=true)
{
global $textprocessors;
$textprocessors[$name] = [$fx, $visible_in_backend];
}
/*
* Function: textprocessor_apply
* Apply a textprocessor on a text.
*
* Parameters:
* $text - The input text.
* $textprocessor - The name of the textprocessor.
*
* Returns:
* HTML
*/
function textprocessor_apply($text, $textprocessor)
{
global $textprocessors;
if (!isset($textprocessors[$textprocessor])) {
throw new Exception("Unknown Textprocessor: $textprocessor");
}
$fx = @$textprocessors[$textprocessor][0];
if (!is_callable($fx)) {
throw new Exception("Invalid Textprocessor: $textprocessor");
}
return call_user_func($fx, $text);
}
/*
* Function: textprocessor_apply_translation
* Applys a textprocessor automatically on a <Translation> object. The used textprocessor is determined by the $texttype property.
*
* Parameters:
* $translationobj - The <Translation> object.
*
* Returns:
* HTML
*/
function textprocessor_apply_translation($translationobj)
{
return textprocessor_apply($translationobj->text, $translationobj->texttype);
}
if (!isset($textprocessors)) {
$textprocessors = [
"Markdown" => [Closure::fromCallable([Markdown::class, "defaultTransform"]), true],
"Plain Text" => [function ($text) {
return str_replace(["\r\n", "\n"], ["<br />", "<br />"], htmlesc($text));
}, true],
"HTML" => [function ($text) {
return $text;
}, true]
];
}
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