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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.
*/
require_once(dirname(__FILE__) . "/../libs/markdown.php");
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] = array($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))
{
$textprocessors = array(
"Markdown" => array("Markdown", True),
"Plain Text" => array(function($text) { return str_replace(array("\r\n", "\n"), array("<br />", "<br />"), htmlesc($text)); }, True),
"HTML" => array(function($text) { return $text; }, True)
);
}
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