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Fix -w behaviour and docs (<https://github.com/petdance/ack2/issues/445>) #558

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Fix -w behaviour and docs (<https://github.com/petdance/ack2/issues/445>) #558

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12 changes: 6 additions & 6 deletions ack
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Original file line number Diff line number Diff line change
Expand Up @@ -316,11 +316,9 @@ sub build_regex {

$str = quotemeta( $str ) if $opt->{Q};
if ( $opt->{w} ) {
my $pristine_str = $str;

$str = "(?:$str)";
$str = "\\b$str" if $pristine_str =~ /^\w/;
$str = "$str\\b" if $pristine_str =~ /\w$/;
$str = "(?:\\b|(?!\\w))$str";
$str = "$str(?:\\b|(?<!\\w))";
}

my $regex_is_lc = $str eq lc $str;
Expand Down Expand Up @@ -1539,8 +1537,10 @@ Display version and copyright information.

=item B<-w>, B<--word-regexp>

Force PATTERN to match only whole words. The PATTERN is wrapped with
C<\b> metacharacters.
Match a whole word only. In more detail: if the match begins with a
word character, then there must not be a word character immediately
before the match. If the match ends with a word character, there must
not be a word character immediately after the match.

=item B<-x>

Expand Down