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XXX: comment ranges method code
[perl/list-index.git]
/
lib
/
List
/
Index.pm
diff --git
a/lib/List/Index.pm
b/lib/List/Index.pm
index c42db44eadb5be52310a3ec76b54df640eb06209..574613e8b1c38e2e6b3eaf4c751fd42d53c6930e 100644
(file)
--- a/
lib/List/Index.pm
+++ b/
lib/List/Index.pm
@@
-28,12
+28,15
@@
sub ranges {
while ($offset < @$self) {
my $link = substr $self->[$offset], 0, $length;
if ($context) {
while ($offset < @$self) {
my $link = substr $self->[$offset], 0, $length;
if ($context) {
+ # take a value slightly before the current offset
+ my $before = $offset > $context ? $self->[$offset - $context] : '.';
+ # see how much of it matches the current link
my $trim = 1;
my $trim = 1;
- my $before = $offset > $context ? $self->[$offset - $context] : '';
for my $match (split //, $before) {
scalar $link =~ /\G\Q$match/g or last;
$trim++;
}
for my $match (split //, $before) {
scalar $link =~ /\G\Q$match/g or last;
$trim++;
}
+ # truncate link upto where the earlier value starts to differ
substr($link, $trim) = '' unless $trim > length $link;
}
substr($link, $trim) = '' unless $trim > length $link;
}
@@
-43,11
+46,13
@@
sub ranges {
for my $i (0 .. $#links - 1) {
my ($link, $lastchar) = $links[$i + 1]->[0] =~ /(.*)(.)/;
for my $i (0 .. $#links - 1) {
my ($link, $lastchar) = $links[$i + 1]->[0] =~ /(.*)(.)/;
- $link .= $lastchar eq '.' ? 'a' : chr( ord($lastchar) - 1 )
- unless $lastchar eq 'a';
+ $link .= $lastchar eq 'a' ? '.' : chr( ord($lastchar) - 1 )
+ unless $lastchar eq '.';
+ next if $link eq $links[$i]->[0] and $i;
$links[$i]->[1] = $link;
}
$links[-1]->[1] = '';
$links[$i]->[1] = $link;
}
$links[-1]->[1] = '';
+ $links[0]->[0] = '';
return \@links;
}
return \@links;
}