Utf8.len

Returns the length of the string passed.

Syntax

int utf8.len ( string input [, int i = 1, int j = utf8.len( input ) ] )

Required Arguments

• input: A string character sequence

Optional Arguments

NOTE: When using optional arguments, you might need to supply all arguments before the one you wish to use. For more information on optional arguments, see optional arguments.

• i: An integer representing the beginning position for measuring the length of the section (may be negative).
• j: An integer representing the ending position for measuring the length of the section (may be negative).

Returns

Returns the length of the string as an integer.

Example

Click to collapse [-]

Client

This example calculates the length of the input of the command /length and shows it in the chatbox.

addCommandHandler("length", 
    function (command, ...)
        local input = table.concat({...}, " ")

        if input then
            local length = utf8.len( input )
            outputChatBox( "* Length of your input: ".. length )
        end
    end
)

See Also

• utf8.byte
• utf8.char
• utf8.charpos
• utf8.escape
• utf8.find
• utf8.fold
• utf8.gmatch
• utf8.gsub
• utf8.insert
• utf8.len
• utf8.lower
• utf8.match
• utf8.ncasecmp
• utf8.next
• utf8.remove
• utf8.reverse
• utf8.sub
• utf8.title
• utf8.upper
• utf8.width
• utf8.widthindex