మూస:str len

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The following documentation is located at Template:str len/doc. ^[edit]

Note: Please move the documentation subpage to Template:str len/documentation.

This is the {{str len}} meta-template.

It takes a string as parameter and returns its length (after stripping any leading and/or trailing whitespace). It can count up to 500 in length, and returns 500 for strings that are too long.

It must be subst:'d, so is only useful in new-entry-creation templates, subst:'d templates, and so on.

Examples

If the parameter is empty or undefined it is considered to be of zero length:

{{subst:str len}} becomes 0

{{subst:str len|}} becomes 0

{{subst:str len| }} becomes 0

It counts the length correctly, even if the string contains spaces, looks like a number, or contains special characters:

{{subst:str len| ab cde }} becomes 6

{{subst:str len| 1234567 }} becomes 7

{{subst:str len| café åäö }} becomes 8

It can measure strings up to 500 in length, and returns 500 for strings that are too long:

{{subst:str len| 499-characters... }} becomes 499

{{subst:str len| 1000-characters... }} becomes 500

Technical details

MediaWiki has no parser function or magic word to measure string lengths, and measuring string length using template code is very heavy on the servers; thus this template, even though optimized about as much as it can be, must, by community decision, be subst:'d.

This template substitutes {{str len/core}}, which does most of the work. For documentation on the internal workings of these two templates see /core.

See also

Supplementary templates [edit]

Contents, text, tables:

• caps (returns a particular letter, either in upper or lower cases)
• str len (returns the number of characters of a string)
• theordinal (returns "first" from 1, "second" from 2, etc.)
• theplural (returns "suffixes" from suffix, "verbs" from verb, etc.)
• navbox (generates a collapsible box)
• ! (returns a vertical pipe: |)
• !! (returns two vertical pipes: ||)
• (! (returns a left brace followed by a vertical pipe: {|)
• !) (returns a vertical pipe followed by a right brace: |})
• !- (returns a vertical pipe followed by a dash: |-)

Languages, families and scripts:

• langname (same as above, but also returns a language name from the same language name)
• languagex (returns the language name from any language code)
• langnamex (same as above, but also returns a language name from the same language name)
• langrev (returns the language code of a given language name)
• languageshift (differentiates between "American Sign Language" and "American Sign Language language", among other related languages)
• langfamily (returns the language family from a language code)
• family (returns the family from a subfamily)
• script (returns a script name from a script code)
• scriptrev (returns a script code from a script name)

Pages:

• langprefix (returns the prefix, like conl:, of a language template)
• catlangcode (returns the name of a topical category, notably by never displaying the code en:)
• catlangname (returns the name of a lexical or other category similarly named)
• deftempboiler (generates a definition template)
• edit (generates an "edit" button)