This template is used in MediaWiki:Titleblacklist-custom-archive , and on approximately 1,330,000 pages, or roughly 6500% of all pages . Changes to it can cause immediate changes to the Wikipedia user interface. To avoid major disruption and server load, any changes should be tested in the template's /sandbox or /testcases subpages, or in your own user subpage . The tested changes can be added to this page in a single edit. Please discuss changes on the talk page before implementing them.
This template uses Lua :
{{replace|string |target |replacement |count=n }}
Returns string with the first n occurrences of target replaced with replacement . Omitting count
will replace all occurrences. Space counts as a character if placed in any of the first three parameters.
{{replace|One two two three two four twotwo five|two|NINE}}
→ One NINE NINE three NINE four NINENINE five
{{replace|One two two three two four twotwo five|two|NINE|count=2}}
→ One NINE NINE three two four twotwo five
{{replace|foo_bar|_| }}
→ foo bar
{{replace|One-two two-three two-four twotwo-five|-|—}}
→ One—two two—three two—four twotwo—five
{{replace|One-two two-three two-four twotwo-five|- |—}}
→ One-two two-three two-four twotwo-five
{{str rep }}, which replaces only the first occurrence of a string.
String-handling templates
(help page)
Substring (select chunk of string by its position)
{{str sub new }} Select a substring based on starting and ending index counted in either direction. {{str left }} Keep the first N characters of a string, or duplicate it to N characters. {{str crop }} Return all but the last N characters of a string. {{str index }} Return the N-th character of a string.
{{str right }} Return substring starting at N-th character to end of string. {{str rightc }} Return the last N characters of a string; or a given value if empty. {{str sub old }} Return substring of given length starting at N-th character.
Trimming (select/remove chunk of string by character type)
Select/remove specific item from string
{{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. {{Font style }} Returns bold or italic if the input value has either formatting. {{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