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Returns the length of the first word (i.e. the number of characters before the first space) if that word is one of the ship prefixes listed in the template code; returns 0 otherwise. For example:
{{Ship prefix|HMS Victory}} returns 3 ("HMS" is listed){{Ship prefix|German battleship Tirpitz}} returns 0 ("German" is not listed)For use in Template:Infobox ship begin , for italicizing titles of ship articles.
String-handling templates
By counting {{str mid }} To return a substring specified by position and length.
{{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.
{{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.
{{str sub new }} Select a substr based on starting and ending index.
{{str index }} Returns a given character from a string, but not accented letters.
By checking Dedicated {{unlink }} Removes wikilink brackets (wikicode).
{{remove file prefix }} Removes "File:" (or "Image:") from filenames.
{{PAGENAMEBASE }} To trim off any parenthesis text at the end of a string (disambiguation).
{{title disambig text }} Returns text in parenthesis at the end of a string (disambiguation).
{{WikiProjectbasename }} Removes "WikiProject" from a pagename.
{{remove unranked }} Removes the string "unranked_" from the left of a string (taxonomy).
{{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.
Insertion, replacement and length
{{strloc insert }} Inserts a string at character location strloc, or appends if strloc<=0.
{{loop }} Repeat character string a specified number of times.
{{repeat }} Repeat a 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.
{{str len }} Returns a string's length.
{{iflenge }} [if len]gth [g]reater than or [e]qual to.
{{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.
Analysis and technical
{{str endswith }} To check if a string ends with a given string.
{{str find }}strfind short }} Returns the numerical location of a given string in a string.
{{str find0 }} Zero-based substring search.
{{str sub find }} Searches a substring in a string at the given offset.
{{str letter }} Returns the number of letters that begin a string.
{{str number }} Returns the number of numbers that begin a string.
{{str gtr str }} Compares two strings for alphabetical order, and returns a value accordingly.
