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This template is used on approximately 21,000 pages and changes may be widely noticed. Test changes in the template's /sandbox or /testcases subpages, or in your own user subpage. Consider discussing changes on the talk page before implementing them.

This template uses Lua:

Module:String (sandbox)

This is the ((str len)) meta-template.

It takes a string as parameter and returns its length (excluding spaces at the start and end). It can now count as high as necessary.

Examples

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

((str len)) returns 0

((str len|)) returns 0

((str len| )) returns 0

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

((str len| ab cde )) returns 6

((str len| 1234567 )) returns 7

((str len| café åäö )) returns 8

((str len| ((loop|50|abcdefghij)) )) returns 500

((str len| ((loop|10000|abcdefghij)) )) returns 100000

Template data

This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. See a monthly parameter usage report for Template:Str len in articles based on its TemplateData.

TemplateData for Str len

The template takes a string as parameter and returns its length, excluding spaces at the start and end of the string

Template parameters[Edit template data]
Parameter		Description	Type	Status
Alpha-numeric text	`1`	The string to be counted	String	required

Technical details

This is the first general-purpose template to be implemented using mw:Extension:Scribunto. The Lua code is located in Module:String.

((trim))	Trim any leading or trailing whitespace
((str letter/trim))	Trim down to the beginning letters.
((str number/trim))	Trim down to the beginning numbers.
((trim brackets))	Trim any leading or trailing square brackets.
((trim quotes))	Trim leading or trailing matching quotes.
((trim leading))	Trim up to six instances of specified <prefix>.

((string split))	Extract a short string from a long string.
((first word))	Trim down to the first space.
((remove first word))	Remove anything before the first space.
((last word))	Trim down from the last space.
((remove last word))	Remove anything after the last space.

Select/remove specific item from string

((delink)), ((trim brackets))	Removes wikilink brackets (wikicode); all or outer only.
((Plain text))	Removes wikicode (formatting and brackets)
((PAGENAMEBASE))	Trim off any parenthesis text at the end of a string (disambiguation).
((title disambig text))	Returns text in parentheses at the end of a string (disambiguation).
((WikiProjectbasename))	Removes "WikiProject" from a pagename.

((ship prefix))	Returns the length of a ship's name prefix, if listed (ship names).
((title year))	Returns the 3-or-4-digit year from a pagename, if any.
((title decade))	Returns the 4-digit decade (e.g. "1740s") from a pagename, if any.
((title number))	Returns any number from a pagename.

Insertion, replacement and length

((loop))	Repeat character string a specified number of times.
((replace))	Returns the string, after replacing all occurrences of a specified string with another string.
((str rep))	Returns the string, after replacing the first occurrence of a specified string with another string.
((digits))	Returns the string, after removing all characters that are not digits 0–9
((Nowiki))	Displays wikitext as plain text.

((str len))	Returns a string's length.
((str ≥ len))	Check if a string is "longer or equally long" or "shorter" than a given length.
((str ≤ len))	Check if a string is "shorter or equally long" or "longer" than a given length.
((str ≠ len))	Check if a string is "not equal" or "equal" to a given length.

Analysis and searching

((str startswith)) ((str endswith))	Check if a string starts or ends with a given string.
((str find)), ((strfind short))	Returns the numerical location of a given string in a string.
((in string))	Returns optional string when given string is not found
((str count))	Count the number of occurrences of a pattern within a string.

((a or an))	Takes a noun and produces the appropriate indefinite article, based on whether the first letter is a vowel.
((Array))	Array manipulation and retrieval.
((Isnumeric))	Returns number when true, blank when not numeric.
((str letter))	Returns the number of letters that begin a string.
((str number))	Returns the number of numbers that begin a string.

Modules and built-in functions
Module:String, Module:String2, Module:Ustring, Module:Text, wikitext handling: modules that together contain most necessary string functions. Magic words: About `((padleft:\|))`, `((lc:\|))`, `((formatnum:\|))` etc. ParserFunctions: About `((#titleparts:\|)), ((#expr:\|)), ((#ifeq:\|)),` etc.

Category:String manipulation templates

Category:String manipulating modules

The above documentation is transcluded from Template:Str len/doc.
Editors can experiment in this template's sandbox and testcases pages.
Add categories to the /doc subpage. Subpages of this template.

Examples

Template data

Technical details

See also