https://wiki.math.ethz.ch/System The System web of Foswiki. Discover the details, and how to start your own site with Foswiki - The Free and Open Source Wiki. en-us Copyright 2026 by contributing authors Wiki Administrator [] The contributing authors of Foswiki Foswiki https://wiki.math.ethz.ch/System https://wiki.math.ethz.ch/pub/System/ProjectLogos/foswiki-logo.png https://wiki.math.ethz.ch/System/TwistyPlugin TwistyPlugin A "twisty" is an interface toggle control to show and hide content. TwistyPlugin gives you several options to control the appearance of a twisty: ... (last changed by ProjectContributor) 2023-07-11T11:17:08Z ProjectContributor https://wiki.math.ethz.ch/System/UpgradeGuide Foswiki Upgrade Guide This guide covers upgrading from a previous version of Foswiki to Foswiki 2.x. This upgrade procedure is used to upgrade a to a new major v... (last changed by ProjectContributor) 2022-06-17T12:27:48Z ProjectContributor https://wiki.math.ethz.ch/System/VarEXPAND EXPAND expand macros in a string as if they were used in another topic The viewer must have VIEW access to topictoexpandin for this to work. All the standard form... (last changed by ProjectContributor) 2022-06-17T12:27:48Z ProjectContributor https://wiki.math.ethz.ch/System/VarFORMFIELD FORMFIELD renders a field in the form attached to some topic Parameters Parameter Description Default "name" The name of a Data form ... (last changed by ProjectContributor) 2022-06-17T12:27:48Z ProjectContributor https://wiki.math.ethz.ch/System/VarIF IF simple conditionals Evaluate a condition and show one text or another based on the result. See details in IfStatements . Parameter Description Defa... (last changed by ProjectContributor) 2022-06-17T12:27:48Z ProjectContributor https://wiki.math.ethz.ch/System/VarMETASEARCH METASEARCH special search of meta data METASEARCH is deprecated in favour of the new and much more powerful query type search. See SEARCH and QuerySearch. Param... (last changed by ProjectContributor) 2022-06-17T12:27:48Z ProjectContributor https://wiki.math.ethz.ch/System/WebTopicEditTemplate This topic is needed for normal operation even if System web is restricted. * Set ALLOWTOPICVIEW = * (last changed by ProjectContributor) 2022-06-17T08:28:22Z ProjectContributor https://wiki.math.ethz.ch/System/VarSET SET set a preference setting during runtime A preference setting created via %SET{}% will only be usable in the topic where it has been found by the parser, simil... (last changed by ProjectContributor) 2018-05-04T00:02:21Z ProjectContributor https://wiki.math.ethz.ch/System/VarWIKIAGENTNAME WIKIAGENTNAME From: Name used in emails sent by Foswiki Examples * %WIKIAGENTNAME% expands to == Related WIKIAGENTEMAIL, WIKIWEBMASTER, WIKIWEBMASTERNAME (last changed by ProjectContributor) 2016-11-12T02:06:13Z ProjectContributor https://wiki.math.ethz.ch/System/WebIndex %SEARCH{ "'1'" scope="topic" type="query" nosearch="on" pager="on" pagesize="" }% (last changed by ProjectContributor) 2015-11-17T03:14:57Z ProjectContributor https://wiki.math.ethz.ch/System/WebSearch %IF{ "$'URLPARAM{tab}'='search' OR $'URLPARAM{tab}'='' AND NOT $TAB='advanced'" then="$percentINCLUDE{$quotWebSearch$quot section=$quotsearch$quot}$percent" }%... (last changed by ProjectContributor) 2015-11-17T03:14:57Z ProjectContributor https://wiki.math.ethz.ch/System/VarHTTP HTTP get HTTP headers * Called with the name of an HTTP request header field, returns its value. Capitalization and the use of hyphens versus underscores are n... (last changed by ProjectContributor) 2015-11-12T20:06:08Z ProjectContributor https://wiki.math.ethz.ch/System/VarGROUPS GROUPS a formatted list of groups Deprecated do not use. Use VarGROUPINFO instead * Expands to a formatted list of user groups. * The macro is intended to... (last changed by ProjectContributor) 2015-06-19T11:27:35Z ProjectContributor https://wiki.math.ethz.ch/System/VarENV ENV inspect the value of an environment variable Returns the current value of the environment variable in the CGI (Common Gateway Interface) environment. This is ... (last changed by ProjectContributor) 2015-06-18T18:02:10Z ProjectContributor https://wiki.math.ethz.ch/System/VarGROUPINFO GROUPINFO retrieve details about a group Parameters Parameter Description Default "groupname" Optional name of group format ... (last changed by ProjectContributor) 2015-06-18T18:02:10Z ProjectContributor https://wiki.math.ethz.ch/System/VarLANGUAGE LANGUAGE language code for the current user Returns the language code for the current user. This is the language used by Foswiki to generate the user interface. T... (last changed by ProjectContributor) 2015-06-18T18:02:10Z ProjectContributor