Manual:$wgIllegalFileChars

Site customization: $wgIllegalFileChars
Override the default list of illegal characters in file names.
Introduced in version:	1.16.0 (r55802)
Removed in version:	still in use
Allowed values:	string of characters
Default value:	":"

Other settings: Alphabetical | By Function

Details

Warning:

Don't change this unless you know what you're doing!

This is a regex character class (i.e. a list of characters in a format suitable for a regular expression) that you want MediaWiki to convert to dashes ("-") despite being in the list of allowable title characters.

By default, file names can use the same characters as titles (see $wgLegalTitleChars), with the exception of those characters listed in this variable, the default being only the character ":". All other characters will automatically be converted to dashes ("-").

The default will not allow namespaces to be part of file names (example: File:Project:filename.txt). While this is generally desireable, it interferes with any extenstion that uses namespace indexing or protection. To keep the colon from being converted to a dash, you can set this to "".

References

• revision 55802 (03 September 2009)
• 1.16.9 change log
• $wgLegalTitleChars