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Invert word-boundaries for non-word substitutions

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Pragmatic Software 2010-05-16 05:53:20 +00:00
parent b1e9ed4e80
commit dda750981b
1 changed files with 19 additions and 3 deletions
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22
modules/ideone.pl
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@ -198,17 +198,33 @@ while($subcode =~ m/^\s*(and)?\s*replace\s*([^']+)?\s*'.*'\s*with\s*'.*'/i) {
my $ret = eval { my $ret = eval {
my $got_change; my $got_change;
my ($first_char, $last_char, $first_bound, $last_bound);
$first_char = $1 if $from =~ m/^(.)/;
$last_char = $1 if $from =~ m/(.)$/;
if($first_char =~ /\W/) {
$first_bound = '\B';
} else {
$first_bound = '\b';
}
if($last_char =~ /\W/) {
$last_bound = '\B';
} else {
$last_bound = '\b';
}
if($modifier eq 'all') { if($modifier eq 'all') {
while($code =~ s/(\b)$from(\b)/$1$to$2/) { while($code =~ s/($first_bound)$from($last_bound)/$1$to$2/) {
$got_change = 1; $got_change = 1;
} }
} elsif($modifier eq 'last') { } elsif($modifier eq 'last') {
if($code =~ s/(.*)(\b)$from(\b)/$1$2$to$3/) { if($code =~ s/(.*)($first_bound)$from($last_bound)/$1$2$to$3/) {
$got_change = 1; $got_change = 1;
} }
} else { } else {
my $count = 0; my $count = 0;
if($code =~ s/(\b)$from(\b)/if(++$count == $modifier) { "$1$to$2"; } else { "$1$from$2"; }/gex) { if($code =~ s/($first_bound)$from($last_bound)/if(++$count == $modifier) { "$1$to$2"; } else { "$1$from$2"; }/gex) {
$got_change = 1; $got_change = 1;
} }
} }