String.sub

Available since: Gideros 2011.6
Class: string

Description

Returns the substring of s that starts at i and continues until j; i and j can be negative. If j is absent, then it is assumed to be equal to -1 (which is the same as the string length). In particular, the call string.sub(s,1,j) returns a prefix of s with length j, and string.sub(s, -i) returns a suffix of s with length i. <syntaxhighlight lang="lua"> (string) = string.sub(s,i,j) </source>

Parameters

s: (string) string to get substring from
i: (number) start index of substring
j: (number) index of the last character of substring optional

Return values

Returns (string) substring

Example

<syntaxhighlight lang="lua"> local mynme = "nme01" print(string.sub(mynme, 1, 3)) -- nme -- or this print(mynme:sub(1, 3)) -- nme </source>

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• String
• String.byte
• String.char
• String.dump
• String.find
• String.format
• String.gmatch
• String.gsub
• String.len
• String.lower
• String.match
• String.pack
• String.packsize
• String.rep
• String.reverse
• String.split
• String.sub
• String.unpack
• String.upper

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