Template:String-handling templates

Trimming templates

 * 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.
 * Chop head and tail — To crop a specified number of characters off the beginning and end.
 * Trim — To trim any leading or trailing whitespace.
 * First word — To trim down to the first space.
 * Remove first word — To remove anything before the first space.
 * Str letter/trim — To trim down to the beginning letters.
 * Str number/trim — To trim down to the beginning numbers.
 * Title without disambig — To trim off any parenthesis text at the end of a string.
 * Title disambig text – Returns text in parenthesis at the end of a string.
 * 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 — To trim down to a specified number, starting at a given number from the left, less than 50.
 * Substr any — To trim down to a specified number, starting at a given number from the left, less than 50, can extract accented letters.
 * Str sub long — To trim down to a specified number, starting at a given number from the left, less than 100.
 * trim — Removes whitespace (Strip whitespace does so too, but is less effective)

Inserting strings

 * - Inserts a string at character location strloc, or appends if strloc<=0.
 * - Extracts string prefix up to location strloc, or whole string if strloc<=0.
 * — Returns the string, replacing the first occurrence of a specified string, with another string. Requires a match.
 * — Returns the string, replacing the first occurrence of a specified string, with another string, if there is one.
 * — Repeat character string n times

Analyzing strings templates

 * Str endswith – To check if a string ends with a given string.
 * Str find – Returns the numerical location of a given string in a string, up to 50 characters.
 * Str find long – Returns the numerical location of a given string in a string, up to 80 characters.
 * Strfind short – Searches for a short string in a longer (up to 99 char) string. Performs faster than str find
 * Str find0 – Very fast zero-based substring search with string support up to 90 characters.
 * Str sub find – Searches a substring in a string at the given offset.
 * Str index – Returns a given character from a string, but not accented letters.
 * Str index any – Returns a given character from a string, but not a space.
 * Chr – Returns a given character from a string, including a space.
 * Str len – Returns a string's length. Can count up to 500 characters.
 * Strlen quick – Gets string length quickly (better performance), up to 70 long.
 * Strlen short – Gets length of short strings (1-50), using only 2 expansion levels.
 * Str letter — Returns the number of letters that begin a string.
 * Str number — Returns the number of numbers that begin a string.
 * Ship prefix — Returns the length of a ship name prefix, if listed.

String length comparison templates

 * 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.
 * Str ≤ ≥ len – To check if a string is "shorter", "equal", or "longer" than a given length.

Test cases
Sandboxes and test cases:


 * Str find/sandbox
 * Str index/getchar/sandbox
 * Str index/getchar/testcases
 * Str index/sandbox
 * Str index/testcases
 * Str index any/sandbox
 * Str index any/testcases
 * Str left/sandbox
 * Str len/core/sandbox
 * Str len/sandbox
 * Str len/testcases
 * Str rightc/testcases
 * Str ≠ len/sandbox
 * Str ≠ len/testcases

Technical developments

 * mw:Help:Magic words – About.
 * mw:Help:Extension:ParserFunctions – About  etc.


 * Feature requests:


 * 6455 - Set $wgPFEnableStringFunctions = true on WMF wikis
 * 26092 - Enable or install string parsing wikimarkup functionality on WMF wikis

Future:
 * Lua scripting (status?)

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