Template:Str index/doc

This is a documentation subpage for Template:Str index
It may contain usage information, categories and other content that is not part of the original template page.

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This template uses Lua:

Module:String

Usage

{{str index|text|number}} = Returns the number-th character of text.

Base 1: the first character is numbered 1, and so on. Any leading or trailing whitespace is removed from the string before searching.

If the requested position is negative, this function will search the string counting from the last character. In other words, number = -1 is the same as asking for the last character of the string.

A requested position equal to zero or with a value longer than the string will generate an error.

This function will properly return a space character (' ') if the selected position contains a space.

Examples

{{str index|0123456789ABCDEF|0}} → String Module Error: String index out of range
{{str index|0123456789ABCDEF|1}} → 0
{{str index|0123456789ABCDEF|15}} → E
{{str index|0123456789ABCDEF|18}} → String Module Error: String index out of range

{{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

{{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.

{{first word}}	To trim down to the first space.
{{remove first word}}	To remove anything before the first space.
{{last word}}	To trim down from the last space.
{{remove last word}}	To remove anything after the last space.

Dedicated

{{delink}}	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 parentheses 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.
{{title decade}}	Returns the 4-digit decade (e.g. "1740s") 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.
{{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

{{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.
{{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.

{{ASCII code}}	Returns the ASCII value of a single character.
{{a or an}}	Takes a noun and produces the appropriate indefinite article, based on whether the first letter is a vowel.

{{Count on page}}	Counts how many times a string is used on a page
{{String on page}}	Finds if yes/no a string is used on a page

Module:String
...Magic words	About `{{padleft:\|}}`.
...ParserFunctions	About `{{#titleparts:\|}}, {{#expr:\|}}, {{#ifeq:\|}},` etc.

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