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match_begin(string, search) match_begin(string, search, separator)This function looks for the string search at the beginning of each word in string. The word separator is given by the string separator if it is specified; otherwise, a space (
" ") is
used. The return value of match_begin() is 1 if
search was found at the beginning of a word in string, or
0 if not.Examples:
match_begin("foo:bar:baz", "fo", ":")
=> 1
match_begin("foo bar baz", "ar")
=> 0