First cut of Autocomplete: completes Perl keywords

2 files changed, 41 insertions, 0 deletions

diff --git a/dist.ini b/dist.ini
index 810cec4..09da71c 100644
--- a/dist.ini
+++ b/dist.ini
@@ -35,6 +35,7 @@ Data::Dump = 0
 Data::Printer = 0
 Proc::InvokeEditor = 0
 Term::ReadLine::Gnu = 0
+B::Keywords = 0
 
 ; XXX it'd be nice if we could make this recommended instead of required
 [OSPrereqs / MSWin32]
diff --git a/lib/Reply/Plugin/Autocomplete.pm b/lib/Reply/Plugin/Autocomplete.pm
new file mode 100644
index 0000000..621a832
--- /dev/null
+++ b/lib/Reply/Plugin/Autocomplete.pm
@@ -0,0 +1,40 @@
+package Reply::Plugin::Autocomplete;
+use strict;
+use warnings;
+# ABSTRACT: tab complete your input
+
+use base 'Reply::Plugin';
+
+use B::Keywords qw/@Functions @Barewords/;
+
+=head1 SYNOPSIS
+
+  ; .replyrc
+  [Autocomplete]
+
+=head1 DESCRIPTION
+
+This plugin registers a tab key handler to autocomplete Perl code.
+
+=cut
+
+sub tab_handler {
+    my ($self, $line) = @_;
+
+    return (
+        $self->_tab_keyword($line),
+    );
+}
+
+sub _tab_keyword {
+    my ($self, $line) = @_;
+
+    my ($last_word) = $line =~ /(\w+)$/;
+    return unless $last_word;
+
+    my $re = qr/^\Q$last_word/;
+
+    return grep { $_ =~ $re } @Functions, @Barewords;
+}
+
+1;