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 (no accented characters in the string).
• ((Remove first word/any)) — To remove anything before the first space (wider range of characters in the string).
• ((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 trim the first specified number of characters, 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.

Inserting strings:

• ((Strloc insert)) - Inserts a string at character location strloc, or appends if strloc<=0.
• ((Strloc prefix)) - Extracts string prefix up to location strloc, or whole string if strloc<=0.
• ((Str rep)) — Returns the string, replacing the first occurrence of a specified string, with another string. Requires a match.
• ((Str repc)) — Returns the string, replacing the first occurrence of a specified string, with another string, if there is one.

Analyzing strings:

• ((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.

Peskovniki in testni primeri:

• ((Str find/peskovnik))
• ((Str index/getchar/peskovnik))
• ((Str index/getchar/testniprimeri))
• ((Str index/peskovnik))
• ((Str index/testniprimeri))
• ((Str index any/peskovnik))
• ((Str index any/testniprimeri))
• ((Str left/peskovnik))
• ((Str len/core/testniprimeri))
• ((Str len/peskovnik))
• ((Str len/testniprimeri))
• ((Str rightc/testniprimeri))
• ((Str ≠ len/peskovnik))
• ((Str ≠ len/testniprimeri))

Technical stuff:

• mw:Help:Magic words – About ((padleft:|)).
• mw:Help:Extension:ParserFunctions – About ((#titleparts:|)), ((#expr:|)), ((#ifeq:|)), etc.

Feature requests:

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