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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.


int, int 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: An integer representing the beginning position.
  • plain: A boolean, if pattern matching should be turned off


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


Click to collapse [-]

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