package Devel::REPL::Plugin::Colors; use Moose::Role; use Term::ANSIColor; use namespace::clean -except => [ 'meta' ]; has normal_color => ( is => 'rw', lazy => 1, default => 'green', ); has error_color => ( is => 'rw', lazy => 1, default => 'bold red', ); around format_error => sub { my $orig = shift; my $self = shift; return color($self->error_color) . $orig->($self, @_) . color('reset'); }; # we can't just munge @_ because that screws up DDS around format_result => sub { my $orig = shift; my $self = shift; no warnings 'uninitialized'; return join "", ( color($self->normal_color), $orig->($self, @_), color('reset'), ); }; # make arbitrary warns colored -- somewhat difficult because warn doesn't # get $self, so we localize $SIG{__WARN__} during eval so it can get # error_color sub _wrap_warn { my $orig = shift; my $self = shift; local $SIG{__WARN__} = sub { my $warning = shift; chomp $warning; warn color($self->error_color || 'bold red') . $warning . color('reset') . "\n"; }; $orig->($self, @_); }; around compile => \&_wrap_warn; around execute => \&_wrap_warn; 1; __END__ =head1 NAME Devel::REPL::Plugin::Colors - add color to return values, warnings, and errors =head1 SYNOPSIS #!/usr/bin/perl use lib './lib'; use Devel::REPL; my $repl = Devel::REPL->new; $repl->load_plugin('LexEnv'); $repl->load_plugin('History'); $repl->load_plugin('Colors'); $repl->run; =head1 DESCRIPTION Colors are very pretty. This plugin causes certain prints, warns, and errors to be colored. Generally the return value(s) of each line will be colored green (you can override this by setting C<< $_REPL->normal_color >> in your rcfile). Warnings and compile/runtime errors will be colored with C<< $_REPL->error_color >>. This plugin uses L, so consult that module for valid colors. The defaults are actually 'green' and 'bold red'. =head1 SEE ALSO C =head1 AUTHOR Shawn M Moore, C<< >> =head1 COPYRIGHT AND LICENSE Copyright (C) 2007 by Shawn M Moore This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. =cut