X-Git-Url: http://git.shiar.net/gitweb.cgi/perl/list-index.git/blobdiff_plain/f467842b8e311a78d9900c4626583fc08a8ce31b..a0438ade03450c7141821f7f8aa25d3a8e39d849:/lib/List/Index.pm?ds=sidebyside
diff --git a/lib/List/Index.pm b/lib/List/Index.pm
index 483d1eb..4a21189 100644
--- a/lib/List/Index.pm
+++ b/lib/List/Index.pm
@@ -28,9 +28,9 @@ sub ranges {
while ($offset < @$self) {
my $link = substr $self->[$offset], 0, $length;
if ($context) {
- {
+ if ($offset > $context - 1) {
# take a value slightly before the current offset
- my $before = $offset > $context ? $self->[$offset - $context] : '.';
+ my $before = $self->[$offset - $context - 1];
# see how much of it matches the current link
my $trim = 1;
for my $match (split //, $before) {
@@ -164,18 +164,18 @@ __END__
=head1 NAME
-List::Index - Paginate alphabetic entries by finding minimal prefixes
+List::Index - Find and apply prefix ranges to paginate keywords
=head1 SYNOPSIS
use List::Index;
my $index = List::Index->new(\@values);
my @pages = $index->ranges({pagesize => 50});
- printf '%1$s ', @$_ for @pages;
+ say "$_" for @pages;
use List::Index 'rangematch';
- my $limit = rangematch('b-bmq'); # matches prefix like 'baa'..'bmq'
- @results = grep { $limit } @results;
+ my $limit = rangematch('b-bmq'); # ge 'b' && le 'bmq'
+ @request = grep { $limit } @values;
=head1 DESCRIPTION