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MediaWiki extensions manual

StringFunctionsEscaped Release status: unmaintained
Implementation	Parser function
Description	Defines a superset of string parser functions that allow character escaping in the 'search for' and 'replace with' arguments.
Author(s)	Jack D. Pond (jpondtalk)
Latest version	1.0.1 (2010-07-07)
MediaWiki	1.16+
License	GNU General Public License 2.0 only
Download	Download extension Git[?]: Browse repository (GitHub) Gerrit code review Git commit log Download source tarball README
Example	examples
Parameters $wgPFEnableStringFunctions
Hooks used ParserFirstCallInit
Translate the StringFunctionsEscaped extension if it is available at translatewiki.net
Issues	Open tasks ·Report a bug

TheStringFunctionsEscaped extension defines a superset of string parser functions that allow character escaping in the 'search for' and 'replace with' arguments.

Wikitext allows the imbedding of certain control characters (newline, tab, etc.). These parser functions allows the developer to find and manipulate standard c-type escape character sequence (\n,\t, etc.) within wikitext.

These parser functions can be used to make infoblox-type templates and/or forms much more WYSIWIG (see examples) for novice/non-technical users.

All parser functions are invoked exactly as their string parser functions would be (except with the '_e' appended). They can be used exactly as their counterparts are, even if there are no embedded special characters.

{{#pos_e:value|key|offset}}

Returns the first position of key inside the given value, or an empty string.If offset is defined, this method will not search the first offset characters.

See:https://secure.php.net/function.strpos

{{#rpos_e:value|key}}

Returns the last position of key inside the given value, or -1 if the key is not found. When using this to search for the last delimiter, add +1 to the result to retreive position after the last delimiter. This also works when the delimiter is not found, because "-1 + 1" is zero, which is the beginning of the given value.

See:https://secure.php.net/function.strrpos

{{#pad_e:value|length|with|direction}}

Returns the value padded to the certain length with the given with string.If the with string is not given, spaces are used for padding. The direction may be specified as: 'left', 'center' or 'right'.

See:https://secure.php.net/function.str-pad

{{#replace_e:value|from|to}}

Returns the given value with all occurrences of 'from' replaced with 'to'.

See:https://secure.php.net/function.str-replace

{{#explode_e:value|delimiter|position}}

Splits the given value into pieces by the given delimiter and returns the position-th piece. Empty string is returned if there are not enough pieces.

Note: Pieces are counted from 0.
Note: A negative value can be used to count pieces from the end, instead of counting from the beginning. The last piece is at position -1.

See:https://secure.php.net/function.explode

{{#stripnewlines:value}}

Any time there is more than one newline in "value", they are changed to a single newline. This is useful for creating templates with complex but readable wiki text that won't impact on the layout of the calling page.

{{#pos_e:Line 1Line 2Line 3|\n|7}}Returns:13

{{#rpos_e:Line 1Line 2Line 3|\n}}Returns:13

~~{{#pad_e:xox|9|\n|center}}~~Returns:~~ xox ~~

{{#replace_e:Line 1Line 2Line 3|\n|<br>\n}}Returns:Line 1<br>Line 2<br>Line 3Which would display as:Line 1Line 2Line 3Rather than the unescaped:Line 1 Line 2 Line 3

{{#explode_e:Line 1Line 2Line 3|\n|1}}Returns:Line 2

{{#stripnewlines:Line 1Line 2Line 3}}Returns:Line 1Line 2 Line 3Printed version:Line 1 Line 2 Line 3

• Download, extract theParserFunctions extension and place the file(s) in a directory calledParserFunctions in yourextensions/ folder.
• Download and move the extractedStringFunctionsEscaped folder to yourextensions/ directory.
  Developers and code contributors should install the extensionfrom Git instead, using:

  cdextensions/gitclonehttps://gerrit.wikimedia.org/r/mediawiki/extensions/StringFunctionsEscaped

• Add the following code at the bottom of yourLocalSettings.php file:

  wfLoadExtension('ParserFunctions');$wgPFEnableStringFunctions=true;require_once"$IP/extensions/StringFunctionsEscaped/StringFunctionsEscaped.php";

• Done – Navigate toSpecial:Version on your wiki to verify that the extension is successfully installed.

• Unmaintained extensions
• Parser function extensions
• GPL licensed extensions
• Extensions in Wikimedia version control
• ParserFirstCallInit extensions
• All extensions
• Extensions not using extension registration

• Extensions without an image
• Extensions without a compatibility policy
• Extensions with manual MediaWiki version
• Extensions not in ExtensionJson