Search::Dict(3p)Perl Programmers Reference Guide Search::Dict(3p)
Search::Dict, look - search for key in dictionary file
use Search::Dict;
look *FILEHANDLE, $key, $dict, $fold;
use Search::Dict;
look *FILEHANDLE, $params;
Sets file position in FILEHANDLE to be first line greater
than or equal (stringwise) to $key. Returns the new file
position, or -1 if an error occurs.
The flags specify dictionary order and case folding:
If $dict is true, search by dictionary order (ignore any-
thing but word characters and whitespace). The default is
honour all characters.
If $fold is true, ignore case. The default is to honour
case.
If there are only three arguments and the third argument is
a hash reference, the keys of that hash can have values
"dict", "fold", and "comp" or "xfrm" (see below), and their
correponding values will be used as the parameters.
If a comparison subroutine (comp) is defined, it must return
less than zero, zero, or greater than zero, if the first
comparand is less than, equal, or greater than the second
comparand.
If a transformation subroutine (xfrm) is defined, its value
is used to transform the lines read from the filehandle
before their comparison.
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