filter

Classes
class	filter_activitynames
	Activity name filtering. More...
class	filter_algebra
class	filter_emoticon
class	filter_glossary
	Glossary linking filter class. More...
class	filter_mediaplugin
	Automatic media embedding filter class. More...
class	filter_tidy
class	filter_urltolink

Functions
	filter_algebra_image ($imagefile, $tex="", $height="", $width="", $align="middle")
	filter_tex_get_cmd ($pathname, $texexp)
	filter_tex_get_executable ($debug=false)
	filter_tex_sanitize_formula (string $texexp)
	Check the formula expression against the list of denied keywords.
	filter_tex_updatedcallback ($name)
	Purge all caches when settings changed.
	filter_text_image ($imagefile, $tex, $height, $width, $align, $alt)
	Create TeX image link.
	filter_urltolink_img_callback ($link)
	Change links to images into embedded images.
	xmldb_filter_data_install ()
	xmldb_filter_glossary_install ()
	xmldb_filter_mathjaxloader_install ()
	xmldb_filter_mediaplugin_install ()
	xmldb_filter_mediaplugin_upgrade ($oldversion)
	xmldb_filter_tex_install ()
	xmldb_filter_tex_upgrade ($oldversion)

Variables
	$plugin = 2024041600
	$plugin = 2024041600
	$plugin = 2024041600
	$plugin = 2024041600
	$plugin = 2024041600
	$plugin = 2024041600
	$plugin = 2024041600
	$plugin = 2024041600
	$plugin = 2024041600
$plugin	component = 'filter_activitynames'
$plugin	component = 'filter_algebra'
$plugin	component = 'filter_data'
$plugin	component = 'filter_emailprotect'
$plugin	component = 'filter_glossary'
$plugin	component = 'filter_mediaplugin'
$plugin	component = 'filter_multilang'
$plugin	component = 'filter_tex'
$plugin	component = 'filter_tidy'
$plugin	dependencies = ['mod_data' => 2024041600]
$plugin	dependencies = ['mod_glossary' => 2024041600]
$plugin	version = 2024042200
$plugin	version = 2024042200
$plugin	version = 2024042200
$plugin	version = 2024042200
$plugin	version = 2024042200
$plugin	version = 2024042200
$plugin	version = 2024042200
$plugin	version = 2024042200
$plugin	version = 2024042200

Detailed Description

Function Documentation

filter_tex_sanitize_formula()

filter_tex_sanitize_formula

(

string

$texexp

)

Check the formula expression against the list of denied keywords.

List of allowed could be more complete but also harder to maintain.

Parameters

string

$texexp

Formula expression to check.

Return values

string

Formula expression with denied keywords replaced with 'forbiddenkeyword'.

filter_text_image()

filter_text_image	(		$imagefile,
			$tex,
			$height,
			$width,
			$align,
			$alt )

Create TeX image link.

Parameters

string	$imagefile	name of file
string	$tex	TeX notation (html entities already decoded)
int	$height	O means automatic
int	$width	O means automatic
string	$align
string	$alt

Return values

string

HTML markup

filter_urltolink_img_callback()

filter_urltolink_img_callback

(

$link

)

Change links to images into embedded images.

This plugin is intended for automatic conversion of image URLs when FORMAT_MOODLE used.

Parameters

$link

Return values

string

xmldb_filter_mediaplugin_upgrade()

xmldb_filter_mediaplugin_upgrade

(

$oldversion

)

Parameters

int

$oldversion

the version we are upgrading from

Return values

bool

result

xmldb_filter_tex_upgrade()

xmldb_filter_tex_upgrade

(

$oldversion

)

Parameters

int

$oldversion

the version we are upgrading from

Return values

bool

result