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This template uses Lua :
{{str sub old|text |start |length }} = Substring of text starting at start and containing length characters. Base 0: the first character is numbered 0, and so on, e.g. {{str sub old|20090624130510|8|2}} returns the 2 characters starting at the 9th, i.e. "13".
{{str sub old|1234567|3|2}} —> 45
{{str sub old| alphabet|0|5}} —> alpha
{{str sub old| alphabet|5|999}} —> bet
{{str sub old|alph abet|0|5}} —> alph
{{str sub old| three words here |4|10}} —> e words h Any leading spaces are skipped, but internal spaces are counted exactly, yet compressed when displayed.
Template parameters
Parameter Description Type Status Text 1The substring to be trimmed.
String required Numeric position 2Numeric position of the starting character within the string
Number required Count 3Number of characters for the substring
Number required
String-handling templates
(help page)
By counting {{#invoke:string |sub}} , {{
str sub new }}: Select a substring based on starting and ending index counted in either direction.
{{trunc }} To trim down to a specified number of characters. {{str left }} To trim down to a specified number of characters or duplicate the string to a specified number. {{str crop }} To crop a specified number of characters off the end. {{str index }} Returns a given character from a string, but not accented letters.
{{str right }} To trim the first specified number of characters. {{str rightc }} To return a number of characters from the end, returns a parameter if the string is empty. {{str rightmost }} To trim down to the last specified number of characters. {{str sub old }} To trim down to a specified number, starting at a given number from the left.
By checking {{trim }} To trim any leading or trailing whitespace {{str letter/trim }} To trim down to the beginning letters. {{str number/trim }} To trim down to the beginning numbers. {{trim brackets }} To trim any leading or trailing square brackets. {{trim quotes }} To trim leading or trailing matching quotes. {{trim leading }} To trim up to six instances of specified <prefix>.
Dedicated {{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 4-digit year from a pagename, if any. {{title decade }} Returns the 4-digit decade (e.g. "1740s") from a pagename, if any.
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 {{Plain text }}, {{Nowiki }} Strips wikicode from a string.
{{str len }} Returns a string's length. {{str ≥ len }} To check if a string is "longer or equally long" or "shorter" than a given length. {{str ≤ len }} To check if a string is "shorter or equally long" or "longer" than a given length. {{str ≠ len }} To check if a string is "not equal" or "equal" to a given length.
Analysis and searching
{{a or an }} Takes a noun and produces the appropriate indefinite article, based on whether the first letter is a vowel. {{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
