look() in Search::Dict should use lc() istead of tr/A-Z/a-z/

The Search::Dict look() function should use the lc() function instead
of tr/A-Z/a-z/.  This will make folding of non-english letters work if
the locale is set up correctly.

diff --git a/lib/Search/Dict.pm b/lib/Search/Dict.pm
index 295da6b..1cd5cf8 100644 (file)
--- a/lib/Search/Dict.pm
+++ b/lib/Search/Dict.pm
@@ -37,7 +37,7 @@ sub look {
     my($size, $blksize) = @stat[7,11];
     $blksize ||= 8192;
     $key =~ s/[^\w\s]//g if $dict;
-    $key =~ tr/A-Z/a-z/ if $fold;
+    $key = lc $key if $fold;
     my($min, $max, $mid) = (0, int($size / $blksize));
     while ($max - $min > 1) {
        $mid = int(($max + $min) / 2);
@@ -47,7 +47,7 @@ sub look {
        $_ = <FH>;
        chop;
        s/[^\w\s]//g if $dict;
-       tr/A-Z/a-z/ if $fold;
+       $_ = lc $_ if $fold;
        if (defined($_) && $_ lt $key) {
            $min = $mid;
        }
@@ -65,7 +65,7 @@ sub look {
            or last;
        chop;
        s/[^\w\s]//g if $dict;
-       y/A-Z/a-z/ if $fold;
+       $_ = lc $_ if $fold;
        last if $_ ge $key;
     }
     seek(FH,$min,0);