Utf8.find

Finds the first occurrence of the pattern in the string passed. If an instance of the pattern is found, a pair of values representing the start and the end of the matched string is returned.

Syntax

string utf8.find ( string input, string pattern [, int startpos = 1, boolean plain = false ] )

Required Arguments

• input: A string character sequence
• pattern: A string match pattern (you can disable pattern matching by using the optional fourth argument plain)

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.

• startpos: A number representing the beginning position.
• plain: A boolean, if pattern matching should be turned off

Returns

Returns two number values for the beginning and ending position of the matched string, nil otherwise.

Example

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Server

This example shows how to search for parts of a string.

print( utf8.find( "Hello MTA User", "User" ) ) -- 11, 14
print( utf8.find( "Hello MTA User", "e" ) ) -- 2, 2
print( utf8.find( "Hello MTA User", "e", 3 ) ) -- 13, 13
print( utf8.find( "Привет Привет", "%s" ) ) -- 7, 7
print( utf8.find( "Привет Привет", "%s", 1, true ) ) -- nil

-- Comparsion of utf8.find and string.find
local startpos, endpos = utf8.find( "Привет", "и" )
print( startpos, endpos ) -- 3, 3

local startpos, endpos = string.find( "Привет", "и" )
print( startpos, endpos ) -- 5, 6

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