From b870f11fe3d8f2ba2f9006331533f79e214a9b32 Mon Sep 17 00:00:00 2001 From: Gianni Ceccarelli Date: Tue, 14 Oct 2014 17:29:16 +0100 Subject: import matcher --- .gitignore | 1 + ext/mymatcher | 347 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 348 insertions(+) create mode 100644 .gitignore create mode 100644 ext/mymatcher diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..b25c15b --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +*~ diff --git a/ext/mymatcher b/ext/mymatcher new file mode 100644 index 0000000..7760d1b --- /dev/null +++ b/ext/mymatcher @@ -0,0 +1,347 @@ +#! perl +use utf8; +use lib '/home/dakkar/perl5/perlbrew/perls/perl-5.18.1/lib/site_perl/5.18.1'; +use URI::Find; +# Author: Tim Pope +# Bob Farrell + +#:META:X_RESOURCE:%.launcher:string:default launcher command +#:META:X_RESOURCE:%.button:string:the button, yeah +#:META:X_RESOURCE:%.scheme.:string:URI scheme to match +#:META:X_RESOURCE:%.launcher.:string:custom launcher for scheme +#:META:X_RESOURCE:%.rend.:string:custom rendition for scheme + +=head1 NAME + +matcher - match strings in terminal output and change their rendition + +=head1 DESCRIPTION + +Uses per-line display filtering (C) to underline URIs +in text and make it clickable. When clicked with the mouse button +specified in the C resource (default 2, or middle), +the program specified in the C resource (default, +the C resource, C) will be started with +the matched text as first argument. The default configuration is +suitable for matching URLs and launching a web browser, like the +former "mark-urls" extension. + +The default scheme to match URLs can be overridden with the +C resource, and additional patterns can be specified +with numbered patterns, in a manner similar to the "selection" extension. +The launcher can also be overridden on a per-pattern basis. + +It is possible to activate the most recently seen match or a list of matches +from the keyboard. Simply bind a keysym to "perl:matcher:last" or +"perl:matcher:list" as seen in the example below. + +Example configuration: + + URxvt.perl-ext: default,matcher + URxvt.url-launcher: sensible-browser + URxvt.keysym.C-Delete: perl:matcher:last + URxvt.keysym.M-Delete: perl:matcher:list + URxvt.matcher.button: 1 + URxvt.matcher.scheme.1: gopher + URxvt.matcher.scheme.2: file + URxvt.matcher.launcher.2: gvim +$2 $1 + +=cut + +sub on_key_press { + my ($self, $event, $keysym, $octets) = @_; + + if (! $self->{showing} ) { + return; + } + + my $i = ($keysym == 96 ? 0 : $keysym - 48); + if (($i > scalar(@{$self->{urls_and_comm}})) || ($i < 0)) { + $self->matchlist(); + return; + } + + my ($url,@comm) = @{$self->{urls_and_comm}[ -$i-1 ]}; + $self->matchlist(); + + $self->exec_async( @comm ) if @comm; +} + +sub on_user_command { + my ($self, $cmd) = @_; + + if($cmd =~ s/^mymatcher:list\b//) { + $self->matchlist(); + } else { + if($cmd =~ s/^mymatcher:last\b//) { + $self->most_recent; + } + # For backward compatibility + else { + if($cmd =~ s/^mymatcher\b//) { + $self->most_recent; + } + } + } + () +} + +sub matchlist { + my ($self) = @_; + if ( $self->{showing} ) { + $self->{url_overlay}->hide(); + $self->{showing} = 0; + return; + } + @{$self->{urls_and_comm}} = (); + my $line; + for (my $i = 0; $i < $self->nrow; $i ++) { + $line = $self->line($i); + next if ($line->beg != $i); + for my $url ($self->get_urls_and_commands_from_line($line->t)) { + if (scalar(@{$self->{urls_and_comm}}) == 10) { + shift @{$self->{urls_and_comm}}; + } + push @{$self->{urls_and_comm}}, $url; + } + } + + if (! scalar(@{$self->{urls_and_comm}})) { + return; + } + + my $max = 0; + my $i = scalar( @{$self->{urls_and_comm}} ) - 1 ;; + + my @temp = (); + + for my $url_and_comm (@{$self->{urls_and_comm}}) { + my ($url,@comm) = @$url_and_comm; + my $url = "$i»$url"; + my $xpos = 0; + + if ($self->ncol + (length $url) >= $self->ncol) { + $url = substr( $url, 0, $self->ncol ); + } + + push @temp, $url; + + if( length $url > $max ) { + $max = length $url; + } + + $i--; + } + + @temp = reverse @temp; + + $self->{url_overlay} = $self->overlay(0, 0, $max, scalar( @temp ), urxvt::OVERLAY_RSTYLE, 2); + my $i = 0; + for my $url (@temp) { + $self->{url_overlay}->set( 0, $i, $url, [(urxvt::OVERLAY_RSTYLE) x length $url]); + $self->{showing} = 1; + $i++; + } + +} + +sub most_recent { + my ($self) = shift; + my $row = $self->nrow; + my @urls_and_comm; + while($row-- > $self->top_row) { + @urls_and_comm = $self->get_urls_and_commands_from_line(undef,$row); + last if @urls_and_comm; + } + + if(@urls_and_comm) { + my ($url,@comm) = @{$urls_and_comm[-1]}; + return $self->exec_async (@comm); + } + () +} + +sub my_resource { + $_[0]->x_resource ("%.$_[1]") +} + +# turn a rendition spec in the resource into a sub that implements it on $_ +sub parse_rend { + my ($self, $str) = @_; + my ($mask, $fg, $bg, $failed) = $str ? urxvt::rend2mask($str) + : (urxvt::RS_Uline, undef, undef, []); + warn "Failed to parse rendition string: " . join(',', @$failed) if @$failed; + my @rend; + push @rend, sub { $_ |= $mask } if $mask; + push @rend, sub { $_ = urxvt::SET_FGCOLOR($_, $fg) } if defined $fg; + push @rend, sub { $_ = urxvt::SET_BGCOLOR($_, $bg) } if defined $bg; + sub { + for my $s ( @rend ) { &$s }; + } +} + +sub on_start { + my ($self) = @_; + + $self->{launcher} = $self->my_resource ("launcher") || $self->x_resource("url-launcher") || "sensible-browser"; + + $self->{urls_and_comm} = []; + $self->{showing} = 0; + $self->{button} = 2; + $self->{state} = 0; + if($self->{argv}[0] || $self->my_resource ("button")) { + my @mods = split '', $self->{argv}[0] || $self->my_resource ("button"); + for my $mod (@mods) { + if($mod =~ /^\d+$/) { + $self->{button} = $mod; + } elsif($mod eq "C") { + $self->{state} |= urxvt::ControlMask; + } elsif($mod eq "S") { + $self->{state} |= urxvt::ShiftMask; + } elsif($mod eq "M") { + $self->{state} |= $self->ModMetaMask; + } elsif($mod ne "-" && $mod ne " ") { + warn("$mod is invalid in $self->{_name}<$self->{argv}[0]>\n"); + } + } + } + + my @defaults = (''); + my @matchers; + for (my $idx = 0; defined (my $res = $self->my_resource ("scheme.$idx") || $defaults[$idx]); $idx++) { + $res = $self->locale_decode ($res); + utf8::encode $res; + my $launcher = $self->my_resource ("launcher.$idx"); + $launcher =~ s/\$&|\$\{&\}/\${0}/g if $launcher; + my $rend = $self->parse_rend($self->my_resource ("rend.$idx")); + unshift @matchers, [qr($res)x,$launcher,$rend]; + } + $self->{matchers} = \@matchers; + + () +} + +sub on_line_update { + my ($self, $row) = @_; + + # fetch the line that has changed + my $line = $self->line ($row); + my $text = $line->t; + + URI::Find->new( + sub { + my ($uri,$match) = @_; + + my $scheme = $uri->scheme; + my ($matcher) = grep { + my $scheme_re = $_->[0]; + $scheme =~ m{$scheme_re}; + } @{$self->{matchers}}; + + $text =~ m{\Q$match}; + my $rend = $line->r; + # mark all characters as underlined. we _must_ not toggle + # underline, as we might get called on an already-marked + # url. + &{$matcher->[2]} + for @{$rend}[ $-[0] .. $+[0] - 1]; + + $line->r ($rend); + } + )->find(\$text); + + () +} + +sub valid_button { + my ($self, $event) = @_; + my $mask = $self->ModLevel3Mask | $self->ModMetaMask + | urxvt::ShiftMask | urxvt::ControlMask; + return ($event->{button} == $self->{button} && + ($event->{state} & $mask) == $self->{state}); +} + +sub get_urls_and_commands_from_line { + my ($self, $text, $row, $col) = @_; + if (!defined $text) { + my $line = $self->line ($row); + $text = $line->t; + } + + my @ret; + + URI::Find->new( + sub { + my ($uri,$match) = @_; + + my $scheme = $uri->scheme; + my ($matcher) = grep { + my $scheme_re = $_->[0]; + $scheme =~ m{$scheme_re}; + } @{$self->{matchers}}; + my $launcher = $matcher->[1] || $self->{launcher}; + + $text =~ m{\Q$match}; + + my @begin = @-; + my @end = @+; + if (!defined($col) || ($-[0] <= $col && $+[0] >= $col)) { + if ($launcher !~ /\$/) { + push @ret, [$match,$launcher,$match]; + } + else { + # It'd be nice to just access a list like ($&,$1,$2...), + # but alas, m//g behaves differently in list context. + my @exec = map { s/\$(\d+)|\$\{(\d+)\}/$match/gx; $_ } split(/\s+/, $launcher); + push @ret,[$match,@exec]; + } + } + } + )->find(\$text); + + return @ret; +} + +sub on_button_press { + my ($self, $event) = @_; + if($self->valid_button($event) + && (my ($url_and_comm) = $self->get_urls_and_commands_from_line(undef,$event->{row},$event->{col}))) { + my ($url,@comm) = @$url_and_comm; + $self->{row} = $event->{row}; + $self->{col} = $event->{col}; + $self->{cmd} = \@comm; + return 1; + } else { + delete $self->{row}; + delete $self->{col}; + delete $self->{cmd}; + } + + () +} + +sub on_button_release { + my ($self, $event) = @_; + + my $row = delete $self->{row}; + my $col = delete $self->{col}; + my $cmd = delete $self->{cmd}; + + return if !defined $row; + + my ($url_and_comm) = $self->get_urls_and_commands_from_line(undef,$event->{row},$event->{col}); + my ($url,@comm) = @$url_and_comm; + + if($row == $event->{row} && abs($col-$event->{col}) < 2 + && join("\x00", @$cmd) eq join("\x00", @comm)) { + if($self->valid_button($event)) { + + $self->exec_async (@$cmd); + + } + } + + 1; +} + +# vim:set sw=3 sts=3 et: -- cgit v1.2.3