package Shiar_Sheet::Keyboard; use 5.010; use strict; use warnings; no warnings 'uninitialized'; # save some useless checks for more legible code use Carp; our $VERSION = 'v2.05'; my @casedesc = (undef, qw/shift ctrl meta/, 'shift meta'); my @rowdesc = qw(numeric top home bottom); my %keyrows = do 'keys.inc.pl'; # add first two cases of each row again with each char prepended by + (alt) push @$_, map { [map {"+$_"} @$_] } @$_[0,1] for map {@$_} values %keyrows; my %keytrans = qw( ^@ NUL ^a SOH ^b STX ^c ETX ^d EOT ^e ENQ ^f ACK ^g BEL ^h BS ^i tab ^j LF ^k VT ^l FF ^m CR ^n SO ^o SI ^p DLE ^q DC1 ^r DC2 ^s DC3 ^t DC4 ^u NAK ^v SYN ^w ETB ^x CAN ^y EM ^z SUB ^[ ESC ^\ FS ^] GS ^^ RS ^_ US ^? DEL ); sub new { my $class = shift; my ($self) = @_; croak 'Invalid keyboard definitions specified' unless ref $self eq 'HASH'; croak 'No key definitions specified' unless ref $self->{def} eq 'HASH'; $self->{map} ||= 'qwerty'; $self->{sign} ||= do { require Shiar_Sheet::KeySigns; Shiar_Sheet::KeySigns->VERSION(1.04); \%Shiar_Sheet::KeySigns::sign; }; bless $self, $class; } sub map { my $self = shift; my ($mapname) = @_; return $self->{map} = $mapname if defined $keyrows{$mapname}; return undef; } sub escapeclass { local $_ = shift; s/\^/_c/g; s/\+/_m/g; s/\[/_sbo/g; s/\]/_sbc/g; s/^$/_/; return $_; } sub escapehtml { local $_ = shift; s/</g; s/>/>/g; s/ / /g; return $_; } sub escapedesc { my $self = shift; local $_ = shift; s{ (< ([^>]*) >) }{ $self->{sign}->{$2} // $1 }xeg; return $_; } sub keyunalias { my $self = shift; my ($key, $ancestry) = @_; $key =~ s/(\S*?)(\+?\^?\S)($|\s.*)/$2/; my $mode = $1; my $keyinfo = $self->{def}->{$mode}->{$key}; return unless defined $keyinfo; $keyinfo =~ s/^=// or return $keyinfo; return '' if $ancestry->{$key}++; # endless loop failsafe return $self->keyunalias($keyinfo, $ancestry); } sub print_key { my $self = shift; my ($mode, $key, $flags) = @_; my ($desc, $mnem); if (not defined $flags) { $flags = $key eq '^0' ? 'ni' : 'no'; } elsif ($flags =~ s/^=//) { # alias $desc = $self->{sign}->{alias}; $desc .= $flags eq "\e" ? 'esc' : $flags; $flags = $self->keyunalias($flags) . ' alias'; } if (my $txt = $self->{key}->{$mode.$key}) { ($desc, $mnem) = split /\n/, $self->escapedesc($txt); } # $key = $keytrans{$key} if defined $keytrans{$key}; my $keytxt = $key eq "\e" ? 'Esc' : $self->{def}{$mode}{lead} . escapehtml($key) if $key ne '^0'; $keytxt .= $self->{sign}->{$1} while $flags =~ s/(?:^| )(arg[a-ln-z]?)\b//; # arguments $keytxt .= "$self->{sign}->{motion}" if $flags =~ s/ ?\bargm\b//; # motion argument $keytxt =~ s{\^(?=.)}{^}; # element around ctrl-identifier $keytxt =~ s{\+(?=.)}{+}; # meta my $keyhint = defined($mnem) && qq{ title="$mnem"}; $keytxt = "$keytxt"; $keytxt .= ' '.$desc if defined $desc; $keytxt = qq{$keytxt} if $flags =~ s/ ?\blink(\S*)//; my $onclick = $flags =~ s/ ?\bmode(\S*)// && defined $self->{def}{$1} && sprintf( ' onclick="setmode(%s)"', $1 eq '' ? '' : sprintf(q{'mode%s'}, escapeclass($1)) ); $flags .= ' chr'.ord(substr $key, -1) if $key ne '^0'; print qq{\t\t
%s: %s | ', # XXX insert here to fix msie<=6 $self->escapedesc($self->{mode}->{$mode} || "mode $basemode"), "$rowdesc[$row] row $casedesc[$case]" ) unless $row < 0; print "\n"; $self->print_key($mode, $_, $modekeys->{$_}) for @$keycase; print qq{\t\t
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