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kbd
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#!/usr/bin/perl
# vi:set sw=2 ai sm:
# Copyright © 2021–2022 by Ambrose Li
=pod
=encoding utf8
=head1 NAME
kbd – Keyboard emulator
=head1 DESCRIPTION
This is a conceptually simple script that emulates a MIDI keyboard
using a regular keyboard for typing.
All the code for interfacing with Fluidsynth came from I<chimer>.
=cut
# see https://stackoverflow.com/questions/6162484/why-does-modern-perl-avoid-utf-8-by-default for these crazy hacks
# THERE ARE MORE CRAZY HACKS THERE FOR MORE COMPLEX PROJECTS!!
use v5.12; # minimal for unicode string feature
use v5.14; # //u modifier
use utf8;
open qw( :encoding(UTF-8) :std );
use charnames qw( :full :short );
use feature "unicode_strings";
use warnings qw( FATAL utf8 );
use Encode qw( encode decode );
#@ARGV = map { decode("UTF-8", $_) } @ARGV if grep /\P{ASCII}/ => @ARGV;
binmode STDIN, ':utf8';
binmode STDOUT, ':utf8';
binmode STDERR, ':utf8';
use strict;
use integer;
package Debug;
use Scalar::Util qw(blessed dualvar isdual readonly refaddr reftype tainted weaken isweak isvstring looks_like_number set_prototype);
sub lazy_sorter ($$) {
my($a, $b) = @_;
my $it;
if ($a =~ /^(.*?)(\d+(?:\.\d+)?)$/s) {
no integer;
my($a1, $a2) = ($1, $2);
if ($b =~ /^(.*?)(\d+(?:\.\d+)?)$/s) {
my($b1, $b2) = ($1, $2);
if ($a1 eq $b1 && $a1 =~ /q$/s) { # q0 = q4 therefore > q3
$it = ($a2 + 3)%4 <=> ($b2 + 3)%4;
} else {
$it = $a1 cmp $b1;
$it = $a2 <=> $b2 unless $it;
}
}
}
$it = $a cmp $b unless defined $it && $it;
return $it;
}
sub cvs ($) {
my($s) = @_;
my $it;
sub compute_size ($) {
my($s) = @_;
my $it;
if (!defined $s || !ref $s) {
$it = 1;
} elsif (ref $s eq 'ARRAY') {
for my $val (@$s) {
$it += compute_size($val);
}
} else { # hash or object
$it += 2 unless ref $s eq 'HASH';
for my $val (values %$s) {
$it += 1 + compute_size($val);
}
}
return $it;
}
sub format_scalar ($) {
my($it) = @_;
no integer;
if (!looks_like_number($it)) {
$it =~ s/([\\\(\)])/\\\1/sg;
$it =~ s/(\n)/\\n/sg;
$it = "($it)";
}
return $it;
}
sub format_as_name ($) {
my($s) = @_;
return $s =~ /^[-\.\w]+$/? "/$s": sprintf('%s cvn', cvs($s));
}
sub format_array_inner ($) {
my($s) = @_;
my $it;
if (compute_size($s) <= 12) { # cf. https://picolisp.com/wiki/?prettyPrint
$it = join(' ', map { cvs($_) } @$s);
} else {
my @s = @$s;
$it = cvs($s[0]) . "\n " . format_array_inner([@s[1..$#s]]);
}
return $it;
}
sub format_hash ($) {
my($s) = @_;
my @keys = sort { lazy_sorter($a, $b) } keys %$s;
my @size;
my $it;
for (my $i = $#keys; $i >= 0; $i -= 1) {
my $key = $keys[$i];
$size[$i] = compute_size($key) + compute_size($s->{$key});
$size[$i] += $size[$i + 1] if $i < $#keys;
}
for (my $i = 0; $i < @keys; $i += 1) {
my $key = $keys[$i];
$it .= ($size[$i] <= 12? ' ': "\n") if defined $it;
$it .= sprintf('%s %s', format_as_name $key, cvs($s->{$key}));
}
return "<<$it>>";
}
if (!defined $s) {
$it = 'null';
} elsif (ref $s eq 'ARRAY') {
$it = sprintf('[%s]', format_array_inner($s));
} elsif (ref $s eq 'HASH') {
$it = format_hash $s;
} elsif (!ref $s) {
$it = format_scalar $s;
} else { # object :-/
$it = sprintf '%s %s bless', format_hash $s, format_as_name ref $s;
}
return $it;
}
package Keyboard_Emulator;
use POSIX;
use POSIX ":sys_wait_h"; # for nonblocking read
use DateTime;
use Time::HiRes; # overrides (qw) do not seem to work
use Expect::Simple;
use Exporter;
require Exporter;
use vars qw( @ISA @EXPORT @EXPORT_OK );
@ISA = qw(Exporter);
@EXPORT_OK = qw( $dow_re $dow_range_re %expressive_mark_to_midi_velocity );
use vars qw( @restart_cmd );
@restart_cmd = ($0, @ARGV); # save this because GetOpt will clear @ARGV
use vars qw( $appName );
$appName = 'kbd';
use Getopt::Long;
use Data::Dumper;
use Curses;
use vars qw( $config );
use vars qw( $overrides );
use vars qw( $debug );
use vars qw( $no_cache_p $create_cache_p $test_p );
use vars qw( $verbose_p );
use vars qw( $quit_p );
use vars qw( $enable_nonproportional_watches );
use vars qw( $enable_qing_quarters );
use vars qw( $coords );
use vars qw( $lat $lon );
use vars qw( $use_jack_p );
use vars qw( @sinks );
use vars qw( $synth );
use vars qw( %children );
use vars qw( %expected_latency );
use vars qw( $wood_note );
use vars qw( %instrument_name_to_channel_number );
use vars qw( %instrument_name_to_mf_velocity );
use vars qw( $fluidR3 );
$fluidR3 = '/usr/share/sounds/sf2/FluidR3_GM.sf2';
use vars qw( $beat_length );
$beat_length = 1;
use vars qw( $boottime );
$boottime = Time::HiRes::time;
use vars qw( $time_displacement );
sub current_time () { no integer; Time::HiRes::time + $time_displacement }
use vars qw( $basedir $datadir );
$basedir = $1 if $0 =~ /^(.*?)\/+[^\/]+$/;
$basedir =~ s/(?:^|\/+)bin$//;
$basedir = '.' if $basedir eq '';
$datadir = "$basedir/data";
# number of times we try sleeping for 1 second until we sleep until the target event
sub COUNTDOWN () { 5 } # things stablize after 2-3 times, we do 5 just in case (10 is overkill)
# number of seconds to sleep before we disconnect the synth - from observation this must be at least 6
sub SECONDS_BEFORE_DISCONNECT () { 7 }
sub MODE__SYSLINE () { 'sysline' }
sub MODE__CUCKOO () { 'cuckoo' }
sub MODE__CARILLON () { 'carillon' }
sub METHOD__SAMPLES () { 'samples' }
sub METHOD__SYNTH () { 'synth' }
sub MELODY__ABBEY () { 'abbey' }
sub MELODY__CAMBRIDGE () { 'cambridge' }
sub MELODY__CAMBRIDGE_RCC () { 'cambridge_rcc' }
sub MELODY__CANTERBURY () { 'canterbury' }
sub MELODY__GUILDFORD () { 'guildford' }
sub MELODY__MAGDALEN () { 'magdalen' }
sub MELODY__NEWCOLLEGE () { 'newcollege' }
sub MELODY__NORWICH () { 'norwich' }
sub MELODY__TINGTANG2A () { 'tingtang2a' }
sub MELODY__TINGTANG2B () { 'tingtang2b' }
sub MELODY__TINGTANG3A () { 'tingtang3a' }
sub MELODY__TINGTANG3B () { 'tingtang3b' }
sub MELODY__TINGTANG4 () { 'tingtang4' }
sub MELODY__TINGTANG5 () { 'tingtang5' }
sub MELODY__WESTMINSTER () { 'westminster' }
sub MELODY__WHITTINGTON () { 'whittington' }
sub MELODY__WHITTINGTON11 () { 'whittington11' }
use vars qw( $mode $method $melody );
$mode = MODE__CARILLON;
$method = METHOD__SAMPLES;
$melody = MELODY__WESTMINSTER;
use vars qw( %alias_to_canonical_instrument );
%alias_to_canonical_instrument = (
'Keyboard' => 'Piano',
'Carillon' => 'Bell',
'Chimes' => 'Church Bells',
);
use vars qw( %laisser_vibrer_p );
%laisser_vibrer_p = (
'Bell' => 1,
'Gong' => 1,
);
# night watch chime patterns
sub LONG_STRIKE () { 1.5 }
sub SHORT_STRIKE () { 0.5 }
sub GAP () { 2.5 }
# watch chime patterns: repetitions, pattern
# gap needs to be long enough to hear it, but short enough to not mistake it for a long strike. This is HARD
use vars qw( @watch_chime_pattern );
@watch_chime_pattern = ( # v. https://zh.wikipedia.org/wiki/打更 (q.v.)
[3, '— .' ],
[2, '. .' ],
[3, '— . .' ],
[4, '— . . .' ],
[5, '— . . . .' ],
);
use vars qw( @midi_number_to_note %note_to_midi_number );
@midi_number_to_note = (
'c0', 'c#0', 'd0', 'd#0', 'e0', 'f0', 'f#0', 'g0', 'g#0', 'a0', 'a#0', 'b0',
'c1', 'c#1', 'd1', 'd#1', 'e1', 'f1', 'f#1', 'g1', 'g#1', 'a1', 'a#1', 'b1',
'c2', 'c#2', 'd2', 'd#2', 'e2', 'f2', 'f#2', 'g2', 'g#2', 'a2', 'a#2', 'b2',
'c3', 'c#3', 'd3', 'd#3', 'e3', 'f3', 'f#3', 'g3', 'g#3', 'a3', 'a#3', 'b3',
'c4', 'c#4', 'd4', 'd#4', 'e4', 'f4', 'f#4', 'g4', 'g#4', 'a4', 'a#4', 'b4',
'c5', 'c#5', 'd5', 'd#5', 'e5', 'f5', 'f#5', 'g5', 'g#5', 'a5', 'a#5', 'b5',
'c6', 'c#6', 'd6', 'd#6', 'e6', 'f6', 'f#6', 'g6', 'g#6', 'a6', 'a#6', 'b6',
'c7', 'c#7', 'd7', 'd#7', 'e7', 'f7', 'f#7', 'g7', 'g#7', 'a7', 'a#7', 'b7',
'c8', 'c#8', 'd8', 'd#8', 'e8', 'f8', 'f#8', 'g8', 'g#8', 'a8', 'a#8', 'b8',
'c9', 'c#9', 'd9', 'd#9', 'e9', 'f9', 'f#9', 'g9', 'g#9', 'a9', 'a#9', 'b9',
);
%note_to_midi_number = map { $midi_number_to_note[$_] => $_ } 0..$#midi_number_to_note;
use vars qw( %gong_scale %chime_scale );
%gong_scale = (
'c4' => '582141__strangehorizon__g01-c-4-gong.wav',
'c#4' => '582140__strangehorizon__g02-c-4-gong.wav',
'd4' => '582139__strangehorizon__g03-d-4-gong.wav',
'd#4' => '582138__strangehorizon__g04-d-4-gong.wav',
'e4' => '582145__strangehorizon__g05-e-4-gong.wav',
'f4' => '582144__strangehorizon__g06-f-4-gong.wav',
'f#4' => '582143__strangehorizon__g07-f-4-gong.wav',
'g4' => '582142__strangehorizon__g08-g-4-gong.wav',
'g#4' => '582147__strangehorizon__g09-g-4-gong.wav',
'a4' => '582146__strangehorizon__g10-a-4-gong.wav',
'a#4' => '582156__strangehorizon__g11-a-4-gong.wav',
'b4' => '582155__strangehorizon__g12-b-4-gong.wav',
'c5' => '582154__strangehorizon__g13-c-5-gong.wav',
'c#5' => '582153__strangehorizon__g14-c-5-gong.wav',
'd5' => '582160__strangehorizon__g15-d-5-gong.wav',
'd#5' => '582159__strangehorizon__g16-d-5-gong.wav',
'e5' => '582158__strangehorizon__g17-e-5-gong.wav',
'f5' => '582157__strangehorizon__g18-f-5-gong.wav',
'f#5' => '582162__strangehorizon__g19-f-5-gong.wav',
'g5' => '582161__strangehorizon__g20-g-5-gong.wav',
);
%chime_scale = (
'c4' => 'chimes_C1.ogg',
'c#4' => 'chimes_C#1.ogg',
'd4' => 'chimes_D1.ogg',
'd#4' => 'chimes_D#1.ogg',
'e4' => 'chimes_E1.ogg',
'f4' => 'chimes_F1.ogg',
'f#4' => 'chimes_F#1.ogg',
'g4' => 'chimes_G1.ogg',
'g#4' => 'chimes_G#1.ogg',
'a4' => 'chimes_A1.ogg',
'a#4' => 'chimes_A#1.ogg',
'b4' => 'chimes_B1.ogg',
'c5' => 'chimes_C2.ogg',
'c#5' => 'chimes_C#2.ogg',
'd5' => 'chimes_D2.ogg',
'd#5' => 'chimes_D#2.ogg',
'e5' => 'chimes_E2.ogg',
'f5' => 'chimes_F2.ogg',
);
sub gensym () {
state $n;
return sprintf('g%d', $n++);
}
sub log_internal ($$;$$$) {
my($flag, $s, $prefix, $newline_p, $keep_p) = @_;
state $last_logged;
my $daemon_p = !-t STDERR;
$newline_p = 1 if $s =~ s/^\n+//s;
$newline_p = 0 unless defined $last_logged;
$newline_p = 1 if defined $last_logged && $last_logged->{'keep'};
$newline_p = 0 if $daemon_p;
my $cleol_p = !$daemon_p && !$newline_p;
$keep_p = 1 if $debug;
$prefix .= ': ' if defined $prefix && $prefix =~ /\S/s && $prefix !~ /: $/s;
chomp $s;
printf STDERR "%s%10.2f%s\t%s%s%s%s", ($newline_p? "\n": ''),
current_time, $flag, $prefix, $s, ($cleol_p? "\033[K": ''), ($daemon_p? "\n": "\r");
$last_logged->{'keep'} = $keep_p + 0;
}
sub log_output ($) { log_internal '>', $_[0] }
sub log_comment ($) { log_internal '#', $_[0] }
sub log_debug ($) { log_internal '#', $_[0], 'DEBUG', 1, 1 }
sub log_info ($) { log_internal '#', $_[0], undef, 0, 1 }
sub log_error ($) { log_internal '#', $_[0], 'ERROR', 1, 1 }
sub log_warning ($) { log_internal '#', $_[0], 'WARNING', 1, 1 }
sub log_command (@) { log_debug 'running: '. join(' ', map { s/([\\"])/\\\1/sg if /\s/; /\s|^$/? "\"$_\"": $_ } @_) }
=pod
=head2 Chime melodies
Each chime melody is internally represented as an array of
B<[>I<midi note name>, I<time in seconds>, I<percentage volume>, I<instrument>B<]> entries
(I<instrument> can be undef),
but written as calls to I<define_event> which takes 3 parameters –
the identifier for the mode,
the identifier for the melody,
a string containing any definitions (in the form S<I<var> = I<some definition>>) –
plus a list of key-value pairs.
Valid keys are B<q1> for first-quarter chimes,
B<q2> for second-quarter chimes,
B<q3> for third-quarter chimes,
B<q0> for fourth-quarter chimes,
and B<h> for the hour strike.
As many definitions as needed can be included, but each definition I<must> be of the form of either of
=over
I<var> = B<\relative> I<pitch> B<{> I<melody> B<}>
I<var> = B<\drums> B<{> I<melody> B<}>
I<var> B<{> I<tempo or some other initialization> B<}>
=back
The values are written in LilyPond notation
(in either relative pitch or drum mode, optionally including note lengths and basic expressive marks),
described in
=over
Relative Octave Entry. (n.d.). In I<LilyPond — Notation Reference v2.22.1 (stable-branch)>.
Retrieved August 18, 2021, from http://lilypond.org/doc/v2.22/Documentation/notation/writing-pitches#relative-octave-entry
Percussion notes. (n.d.). In I<LilyPond — Notation Reference v2.22.1 (stable-branch)>.
Retrieved August 20, 2021, from http://lilypond.org/doc/v2.22/Documentation/notation/percussion-notes
=back
For the hour strike, you should normally use B<%I> for represent the hour
so that you can strike the bell the correct number of times
(you should of course omit B<%I> for I<sysline> mode
or for ancient ting-tang quarters that always strike the hour strike once).
I<event_def> calls I<interpret_melody> to convert this notation into the internal representation described above,
but this conversion is just a simple pattern match and therefore can produce incorrect results.
If results are incorrect but the notation typesets correctly in LilyPond, the bug is in I<interpret_melody>.
The mapping between Lilypond expressive marks and MIDI velocities is based on
=over
Yamaha. (n.d.). I<Everything You've Ever Wanted to Know About Using MIDI with a Disklavier>.
Yamaha Disklavier Education Network.
Retrieved August 19, 2021, from https://www.yamahaden.com/easyblog/entry/everything-you-ve-ever-wanted-to-know-about-using-midi-with-a-disklavier
Vandenneucker, D.Z<Dominique> (2012). MIDI tutorial.
Retrieved September 5, 2021, from http://www.music-software-development.com/midi-tutorial.html
=back
The mapping between Lilypond percussion notes and MIDI percussion notes is based on
=over
General MIDI instrument codes. (n.d.).
Retrieved August 20, 2021, from http://www.ccarh.org/courses/253/handout/gminstruments/
=back
=cut
use vars qw( %ly_notes );
%ly_notes = (
'ces' => -1, 'c' => 0, 'cis' => 1,
'des' => 1, 'd' => 2, 'dis' => 3,
'ees' => 3, 'e' => 4, 'eis' => 5,
'fes' => 4, 'f' => 5, 'fis' => 6,
'ges' => 6, 'g' => 7, 'gis' => 8,
'aes' => 8, 'a' => 9, 'ais' => 10,
'bes' => 10, 'b' => 11, 'bis' => 12,
);
use vars qw( %percussion_note_to_midi_number );
%percussion_note_to_midi_number = (
'bassdrum' => 36, 'bd' => 36,
'acousticbassdrum' => 35, 'bda' => 35,
'snare' => 38, 'sn' => 38, # arbitrarily map to sna
'acousticsnare' => 38, 'sna' => 38,
'electricsnare' => 40, 'sne' => 40,
'lowfloortom' => 41, 'tomfl' => 41,
'highfloortom' => 43, 'tomfh' => 43,
'lowtom' => 45, 'toml' => 45,
'hightom' => 50, 'tomh' => 50,
'lowmidtom' => 47, 'tomml' => 47,
'himidtom' => 48, 'tommh' => 48,
'highhat' => 44, 'hh' => 44, # arbitrarily map to hhp
'closedhighhat' => 42, 'hhc' => 42,
'openhighhat' => 46, 'hho' => 46,
'halfopenhighhat' => undef, 'hhho' => undef, # don't know how to map
'pedalhighhat' => 44, 'hhp' => 44,
'crashcymbal' => 49, 'cymc' => 49, # arbitrarily map to cymca
'crashcymbala' => 49, 'cymca' => 49,
'crashcymbalb' => 57, 'cymcb' => 57,
'ridecymbal' => 51, 'cymr' => 51, # arbitrarily map to cymra
'ridecymbala' => 51, 'cymra' => 51,
'ridecymbalb' => 59, 'cymrb' => 59,
'chinesecymbal' => 52, 'cymch' => 52,
'splashcymbal' => 55, 'cyms' => 55,
'ridebell' => 53, 'rb' => 53,
'cowbell' => 56, 'cb' => 56,
'hibongo' => 60, 'boh' => 60,
'openhibongo' => undef, 'boho' => undef, # don't know how to map
'muteopenhibongo' => undef, 'bohm' => undef, # don't know how to map
'lobongo' => 61, 'bol' => 61,
'openlobongo' => undef, 'bolo' => undef, # don't know how to map
'muteopenlobongo' => undef, 'bolm' => undef, # don't know how to map
'hiconga' => 63, 'cgh' => 63, # arbitrarily map to cgho
'openhiconga' => 63, 'cgho' => 63,
'mutehiconga' => 62, 'cghm' => 62,
'loconga' => 64, 'cgl' => 64,
'openloconga' => undef, 'cglo' => undef, # don't know how to map
'muteloconga' => undef, 'cglm' => undef, # don't know how to map
'hitimbale' => 65, 'timh' => 65,
'lotimbale' => 66, 'timl' => 66,
'hiagogo' => 67, 'agh' => 67,
'loagogo' => 68, 'agl' => 68,
'sidestick' => 37, 'ss' => 37,
'hisidestick' => undef, 'ssh' => undef, # don't know how to map
'losidestick' => undef, 'ssl' => undef, # don't know how to map
'guiro' => 73, 'gui' => 73, # arbitrarily map to guis
'shortguiro' => 73, 'guis' => 73,
'longguiro' => 74, 'guil' => 74,
'cabasa' => 69, 'cab' => 69,
'maracas' => 70, 'mar' => 70,
'shortwhistle' => 71, 'whs' => 71,
'longwhistle' => 72, 'whl' => 72,
'handclap' => 39, 'hc' => 39,
'tambourine' => 54, 'tamb' => 54,
'vibraslap' => 58, 'vibs' => 58,
'tamtam' => undef, 'tt' => undef, # no way to map this
'claves' => 75, 'cl' => 75,
'hiwoodblock' => 76, 'wbh' => 76,
'lowoodblock' => 77, 'wbl' => 77,
'opencuica' => 79, 'cuio' => 79,
'mutecuica' => 78, 'cuim' => 78,
'triangle' => 81, 'tri' => 81, # arbitrarily map to trio
'opentriangle' => 81, 'trio' => 81,
'mutetriangle' => 80, 'trim' => 80,
'oneup' => undef, 'ua' => undef, # no idea what this is
'twoup' => undef, 'ub' => undef, # no idea what this is
'threeup' => undef, 'uc' => undef, # no idea what this is
'fourup' => undef, 'ud' => undef, # no idea what this is
'fiveup' => undef, 'ue' => undef, # no idea what this is
'onedown' => undef, 'da' => undef, # no idea what this is
'twodown' => undef, 'db' => undef, # no idea what this is
'threedown' => undef, 'dc' => undef, # no idea what this is
'fourdown' => undef, 'dd' => undef, # no idea what this is
'fivedown' => undef, 'de' => undef, # no idea what this is
);
use vars qw( %expressive_mark_to_midi_velocity );
%expressive_mark_to_midi_velocity = (
'ppppp' => 1,
'pppp' => 8, # this should be 8 according to Vandenneucker (2012)
'ppp' => 20, # this should be close to 20 according to Yamaha (n.d.), exactly 20 according to Vandenneucker (2012)
'pp' => 31,
'p' => 42,
'mp' => 53,
'mf' => 64,
'f' => 80,
'ff' => 96,
'fff' => 112, # this should be close to 110 according to Yamaha (n.d.), exactly 112 according to Vandenneucker (2012)
'ffff' => 119, # this should be 127 according to Vandenneucker (2012)
'fffff' => 127,
);
use vars qw( %interpretation );
use vars qw( %typesettable_version );
use vars qw( %mode_description );
use vars qw( %melody_description );
sub interpret_absolute_pitch ($) { # interpret c' as c4
my($s) = @_;
my $it;
if ($s =~ /^(\w+)(?:(,*)|('*))$/) {
$it = $ly_notes{$1} + 12*(3 - length($2) + length($3));
} else {
die "Can't interpret absolute pitch " . Debug::cvs($s);
}
return $it;
}
sub interpret_divisor ($) {
my($s) = @_;
no integer;
return !defined $s? $s: $s =~ /\x{5c}longa/? 0.25: $s =~ /\x{5c}breve/? 0.5: $s =~ /^\d+$/? $s + 0: $s; # XXX
}
sub calculate_beat_length ($$) {
my($divisor, $dots) = @_;
no integer;
my $it = 4 / $divisor;
for (my $i = $dots, my $adj = $it/2; $i; $i -= 1, $adj /= 2) {
$it += $adj;
}
return $it;
}
my $duration_re = q((?:(\s*\x{5c}longa|\s*\x{5c}breve|\d+)(\.+)?)); # NOTE: 2 captures: divisor, dots
sub interpret_melody ($) {
my($s0) = @_;
my $it;
my $typesettable_version;
no integer;
state $rest_re = sprintf('(?:r)');
state $percussion_instrument_re = sprintf('(?:%s)', join('|', keys %percussion_note_to_midi_number));
state $pitch_re = q(([a-g](?:[ei]s)?)?(?:(,*)|('*))); # NOTE: 3 captures: base pitch, commas, apostrophes
state $pitch_re_no_captures = ($pitch_re =~ s/\x28(?!\?)/\x28?:/sgr);
state $expressive_mark_re = sprintf("(?:%s)", join('|', keys %expressive_mark_to_midi_velocity));
state $end_re = q((?=[-\s\x{7d}\x{5e}~()\[\]]|$)); # - or space or braceright or caret or tilde or ()[] or eof
my $state = new Interpret_Melody_State;
my($last_pitch, $percussive_instrument);
my $main_instrument = 'Carillon';
my($tie_p);
my($note, $divisor, $dots, $volume) = (undef, 4, 0, $expressive_mark_to_midi_velocity{'mf'});
my($def_key, $def_value, $def_level, %def);
my($current_position, $position_at_end_of_last_recording);
my $grace_note_type;
my $voice;
for (my($s, @stack) = ($s0); $s =~ /\S/s; ) {
unless (defined $def_key) {
$s =~ s/^\s*//s;
$typesettable_version .= $&;
}
if ($s =~ /^\\([A-Za-z]+)\b/s && defined $def{$1}) { # expand variables
my($key) = $1; # we MUST store this in a variable for the substitution to work
$s =~ s/^\\$key/$def{$key}/s;
}
my $lhs;
my $directive;
log_debug sprintf 's=%s', Debug::cvs($s) if $debug > 2;
if ($s =~ s/^\%[^\n]*\n*//s) { # percent - comment to always discard
;
} elsif (!defined $def_key && $s =~ s/^([A-Za-z]+)\s*=\s*//s) {
($def_key, $def_value, $def_level) = ($1);
} elsif (defined $def_key) {
if ($s =~ s/^(\s+)//s) {
$def_value .= ' ';
} elsif ($s =~ s/^("[^""]*")//s) {
$def_value .= $1;
} elsif ($s =~ s/^((?:\x{7b}|<<))//s) { # braceleft
$def_value .= $1;
$def_level += 1;
} elsif ($s =~ s/^((?:\x{7d}|>>))//s) { # braceright
$def_value .= $1;
$def_level -= 1;
if ($def_level == 0) {
$def_value = $1 if $def_value =~ /^{\s*(.*?)\s*}$/s;
$def{$def_key} = $def_value;
($def_key, $def_value, $def_level) = ();
}
} elsif ($s =~ s/^(\S)//s) {
$def_value .= $1;
} else {
log_error "interpret_melody: defined \$def_key reached \"else\" case";
}
} elsif ($s =~ s/^\x{7b}\s*//s) { # braceleft
$typesettable_version .= $&;
$state->gsave();
} elsif ($s =~ s/^<>-\s*//s) { # ignore empty containers for expressive marks
$typesettable_version .= $&;
} elsif ($s =~ s/^<<\s*//s) { # FIXME
$typesettable_version .= $&;
$state->gsave();
} elsif ($s =~ s/^>>\s*//s) { # FIXME
$typesettable_version .= $&;
$state->grestore($s);
} elsif ($s =~ s/^[\^_]\\markup\s+//s) { # ignore markup
$typesettable_version .= $&;
} elsif ($s =~ s/^\\(?:halign\s+#\w+|markup|tiny)\s+//s) { # ignore markup
$typesettable_version .= $&;
} elsif ($s =~ s/^#\(\s*play-recording\s+"([^""]+)"\s+(\d+(?:\.\d+)?)\s+(\d+(?:\.\d+)?)(?:\s+(\d+(?:\.\d+)?))?\s*\)\s+//s) { # pseudo-lisp
my($filename, $start, $end, $treat_as_this_many_beats) = ($1, $2, $3, $4);
# Generate pseudo-note directly instead of setting $directive ($directive needs an existing note to act on)
no integer;
my $duration = $end - $start;
my $unit = 4*$state->unit_beat();
my $unit_beats = $duration/$unit;
my $quantized_beats = int($unit_beats);
my @quantized_beats = (1) x $quantized_beats;
my $remainder = $unit_beats - $quantized_beats;
for (my $divisor = 2; $divisor < 32; $divisor *= 2) {
my $adjustment = 1/$divisor;
if (($remainder * $divisor) & 1) {
push @quantized_beats, $divisor;
$quantized_beats += $adjustment;
$remainder -= $adjustment;
}
}
my $fake_duration = $quantized_beats*$unit;
$fake_duration = $treat_as_this_many_beats*$state->unit_beat() if defined $treat_as_this_many_beats;
my $fake_note = ['ua', $fake_duration, $volume, undef, {
'directive' => ['play', $filename, $start, $end],
'durations' => [@quantized_beats],
}];
push @$voice, $fake_note;
# Generate a typesettable score that makes actual sense. We basically have two options: set it as a one-line percussion staff
# and show all the notes, or set it as a non-percussion staff (RhythmicStaff is perfect for this as it's one-line) and show
# a cluster that's just one black line. The good thing about separate notes is we can attach start and end times to the correct
# notes; we can't do this with clusters but separate notes are misleading given we're talking about recordings (no known notes).
# If we use a non-percussion staff b' (absolute) will look about right, otherwise ua is a good placeholder with no MIDI meaning.
#
# If Lilypond sees two consecutive clusters, it will merge them even though they are two separate clusters. The only way to
# prevent this is to insert a rest between them.
#
$typesettable_version .= sprintf('\set Staff.instrumentName = #"%s" \textLengthOn', $filename);
state $last_note_used;
my $use_clusters_p = !$state->drummode_p();
my $fmt0 = '_\markup{ \halign #%s \tiny "%s" }';
my($fmt1a, $fmt1b) = (sprintf($fmt0, 'LEFT', '%.2f'), sprintf($fmt0, 'RIGHT', '%.2f'));
my $clash_p = $use_clusters_p && defined $position_at_end_of_last_recording && $position_at_end_of_last_recording == $current_position;
my $note = !$use_clusters_p? 'da': !$clash_p? "c''": $last_note_used eq "c''"? "a'": "c''";
my $markup = sprintf($fmt1a, $start);
for my $pass (!$use_clusters_p? ('normal'): ('cluster', 'ghost')) {
my $last_duration;
my $tie = ' ';
$typesettable_version .= "<<\n" if $pass eq 'cluster';
$typesettable_version .= "\\\\\n" if $pass eq 'ghost';
$typesettable_version .= '\makeClusters ' if $pass eq 'cluster';
$typesettable_version .= "{\n\\absolute {\n" if $use_clusters_p;
$typesettable_version .= '\voiceOne ' if $pass eq 'ghost';
$typesettable_version .= sprintf("%s\n", join(' ', map {"\\hide $_"} ($pass eq 'ghost'? qw(NoteHead Rest Stem Dots Tie): qw(Rest))));
my($gap, @effective_quantized_beats) = (undef, @quantized_beats);
if ($pass eq 'cluster' && $clash_p) {
$gap = 128;
for (; $quantized_beats[$#quantized_beats] != $gap;) {
my $n = pop @quantized_beats;
$n *= 2;
push @quantized_beats, $n;
push @quantized_beats, $n unless $n == $gap;
}
}
$typesettable_version .= " r$gap" if defined $gap;
for my $duration (@quantized_beats) {
if (!$duration) {
;
} elsif (defined $last_duration && $last_duration == $duration/2) {
$typesettable_version .= '.';
} else {
$typesettable_version .= sprintf('%s%s%d', $tie, $note, $duration);
if ($pass ne 'cluster') {
$typesettable_version .= $markup;
$markup = undef;
}
}
$tie = '~';
$last_duration = $duration;
}
$typesettable_version .= $markup if $pass ne 'cluster' && defined $markup;
$typesettable_version .= sprintf($fmt1b, $end) if $pass ne 'cluster';
$typesettable_version .= "}\n" if $use_clusters_p; # close \absolute
$typesettable_version .= "}\n" if $use_clusters_p;
}
$typesettable_version .= ">>\n" if $use_clusters_p;
$last_note_used = $note;
# Update current position manually
$current_position += $duration;
$position_at_end_of_last_recording = $current_position;
} elsif ($s =~ s/^"((?:\\"|[^"])*)"//s) { # text
$typesettable_version .= $&;
my($s) = ($1);
} elsif ($s =~ s/^\\(laisserVibrer)\s+//s) { # ignore \laisserVibrer for now
$typesettable_version .= $&;
$directive = $1;
} elsif ($s =~ s/^\\(acciaccatura)\s+//s) { # ignore \acciaccatura for now
$typesettable_version .= $&;
$grace_note_type = $1;
} elsif ($s =~ s/^\\key\s+$pitch_re\s+\\(?:major|minor)\s+//s) { # ignore \key
$typesettable_version .= $&;
} elsif ($s =~ s/^\\partial\s+$duration_re\s+//s) { # ignore \partial
$typesettable_version .= $&;
} elsif ($s =~ s/^\\mark\s+(?:\\default|#\d+|"[^""]+")\s+//s) { # ignore \mark
$typesettable_version .= $&;
} elsif ($s =~ s/^\\set\s+Score\.markFormatter\s+=\s+#[-a-z]+\s+//s) { # ignore set mark formatter
$typesettable_version .= $&;
} elsif ($s =~ s/^\\textLengthOn\s+//s) { # ignore \textLengthOn
$typesettable_version .= $&;
} elsif ($s =~ s/^\\omit\s+[A-Z][A-Za-z]+(?:\.[A-Z][A-Za-z]+)+\s+//s) { # ignore \omit
$typesettable_version .= $&;
} elsif ($s =~ s/^\\new\s+(?:(?:(Drum)|Rhythmic)?Staff|Voice)\s+(?:\\with \{[^\{}]+})?//s || $s =~ s/^\\\\\s*//s) {
$typesettable_version .= $&;
# FIXME - do we need to gsave?
$state->drummode_p(1) if $1;
push @$it, $voice if $voice;
$voice = undef;
} elsif ($s =~ s/^\\voice(?:One|Two|Three|Four)\s+//s) {
$typesettable_version .= $&;
} elsif ($s =~ s/^\\score\s+\x{7b}\s*//s) {
$typesettable_version .= $&;
$state->gsave();
} elsif ($s =~ s/^\\(?:drums|drummode)\s*\x{7b}//s) {
$typesettable_version .= $&;
$state->gsave();
$state->drummode_p(1);
# FIXME - do we need to push voice?
} elsif ($s =~ s/^\\absolute\s*\x{7b}//s) {
$typesettable_version .= $&;
$state->gsave();
$state->relative_p(0);
} elsif ($s =~ s/^\\relative\s*\x{7b}//s) {
$typesettable_version .= $&;
$state->gsave();
$state->relative_p(1);
$last_pitch = undef;
} elsif ($s =~ s/^\\relative\s+($pitch_re)\s*\x{7b}//s) {
$typesettable_version .= $&;
$state->gsave();
$state->relative_p(1);
$last_pitch = interpret_absolute_pitch $1;
} elsif ($s =~ s/^\\transpose\s+($pitch_re)\s+($pitch_re)\s*\x{7b}//s) {
$typesettable_version .= $&;
my($from, $to) = (interpret_absolute_pitch $1, interpret_absolute_pitch $5);
$state->gsave();
$state->relative_p(0);
$state->transpose($state->transpose() + $to - $from);
} elsif ($s =~ s/^\\repeat\s+(?:volta|unfold|percent)\s+(\d+)\s*\x{7b}//s) {
$typesettable_version .= $&;
my $n = $1 + 0;
$state->gsave();
$state->repeat_stacklevel($state->stacklevel());
$state->repeat_count($n);
$state->repeat_start(defined $voice? scalar @$voice: 0);
} elsif ($s =~ s/^\x{7d}\s*//s) { # braceright
$typesettable_version .= $&;
if (defined $state->repeat_stacklevel() && $state->repeat_stacklevel() == $state->stacklevel()) {
my @A = @$voice;
my $i = $state->repeat_start();
my $n = $state->repeat_count();
$voice = [@A[0 .. $i - 1], (@A[$i .. $#A]) x $n];
}
$state->grestore($s);
} elsif ($s =~ s/^[\[\]]\s*//s) { # ignore bracketleft/bracketright = beam on/beam off
$typesettable_version .= $&;
} elsif ($s =~ s/^\(\s*//s) { # ignore parenleft = phrasing slur start
$typesettable_version .= $&;
} elsif ($s =~ s/^\)\s*//s) { # ignore parenright = phrasing slur end
$typesettable_version .= $&;
} elsif ($s =~ s/^\|\s*//s) { # ignore bar checks
$typesettable_version .= $&;
} elsif ($s =~ s/^\~\s*//s) { # tie
$typesettable_version .= $&;
$tie_p = 1;
} elsif ($s =~ s/^(?:\\accent\b|->)//s) {
$typesettable_version .= $&;
$directive = 'accent';
} elsif ($s =~ s/^(?:\\staccato\b|-\.)//s) {
$typesettable_version .= $&;
$directive = 'staccato';
} elsif ($s =~ s/^\x{5e}\s*\\(fermata)\b//s) { # pause
$typesettable_version .= $&;
$directive = $1;
} elsif ($s =~ s/^\\tempo(?:\s+"[^""]+")?\s+(\d+)\s+=\s+(\d+)\s+//s) {
$typesettable_version .= $&;
$state->tempo($1, $2);
} elsif ($s =~ s/^\\time\s+\d+\/\d+\s+//s) { # ignore time signature
$typesettable_version .= $&;
} elsif ($s =~ s/^\\clef\s+"[^""]+"\s*//s) { # ignore clef change
$typesettable_version .= $&;
} elsif ($s =~ s/^\\breathe\s+//s) { # ignore breath marks for now
$typesettable_version .= $&;
} elsif ($s =~ s/^\\tuplet\s+(\d+)\/(\d+)\s*\x{7b}//s) {
$typesettable_version .= $&;
$state->gsave();
$state->unit_beat($state->unit_beat() * $2 / $1);
} elsif ($s =~ s/^$duration_re$end_re//s) {
$typesettable_version .= $&;
($divisor, $dots) = (interpret_divisor $1, length $2);
log_debug "Duration \"$divisor$dots\" encountered before any rest, pitch, or percussion instrument" unless defined $note;
$lhs = $note;
} elsif ($s =~ s/^$rest_re(?:$duration_re)?$end_re//s) {
$typesettable_version .= $&;
my($new_divisor, $new_dots) = ($1, $2);
($divisor, $dots) = (interpret_divisor $new_divisor, length $new_dots) if defined $new_divisor;
$lhs = 'r';
} elsif ($s =~ s/^(?!$end_re)($pitch_re)(?:$duration_re)?$end_re//s # make sure SOMETHING is matched ($pitch_re can match nothing)
|| $s =~ s/^<\s*($pitch_re)(?:\s+$pitch_re_no_captures)+\s*>(?:$duration_re)?$end_re//s) { # discard lower notes in chords
my $what = $&;
$typesettable_version .= $&;
my($pitch_as_written, $base_pitch, $lower, $raise, $new_divisor, $new_dots)
= ($1, ($ly_notes{$2} + 12)%12, 0 + length $3, 0 + length $4, $5, $6);
my $pitch;
if ($state->relative_p()) {
($last_pitch, $lower, $raise) = (interpret_absolute_pitch $pitch_as_written, undef, undef) if !defined $last_pitch;
my $last_base_pitch = ($last_pitch + 12)%12;
for (my $i = 0; $i < 8; $i += 1) {
for my $dir (-1, 1) {
my $candidate = $last_pitch + $dir*$i;
$pitch = $candidate if $candidate%12 == $base_pitch;
last if defined $pitch;
}
last if defined $pitch;
}
$pitch += 12*($raise - $lower);
} else {
$pitch = interpret_absolute_pitch $pitch_as_written;
}
$pitch += $state->transpose() if defined $pitch;
($divisor, $dots) = (interpret_divisor $new_divisor, length $new_dots) if defined $new_divisor;
$lhs = $midi_number_to_note[$pitch];
die "interpret_melody error: note $pitch_as_written out of range\n" unless defined $lhs;
$last_pitch = $pitch;
} elsif ($s =~ s/^($percussion_instrument_re)(?:$duration_re)?$end_re//s) {
$typesettable_version .= $&;
($percussive_instrument, my $new_divisor, my $new_dots) = ($1, $2, $3);
($divisor, $dots) = (interpret_divisor $new_divisor, length $new_dots) if defined $new_divisor;
$lhs = $percussive_instrument;
} elsif ($s =~ s/^\\($expressive_mark_re)\b//s) {
$typesettable_version .= $&;
$volume = $expressive_mark_to_midi_velocity{$1};
} elsif ($s =~ s/^\\set\s+Staff\.instrumentName\s+=\s+#"([^""]+)"\s*//s) {
$typesettable_version .= $&;
$main_instrument = $1;
} elsif ($s =~ s/^(\S+)//s) {
$typesettable_version .= $&;
log_debug sprintf('Unknown expression "%s" near "%s" discarded', $1, $');
} else {
$typesettable_version .= $&;
log_debug "Internal error: \"else\" case reached in interpret_melody, s=($s)";
}
if (defined $lhs) {
my $rhs = $state->unit_beat() * calculate_beat_length($divisor, $dots);
if ($tie_p) {
if (!defined $note) {
$tie_p = 0;
log_error "Tie ignored because there is no note to tie to";
} elsif ($note ne $lhs) {
$tie_p = 0;
log_error "Tie ignored because $note and $lhs are different";
} else {
$voice->[+scalar @$voice - 1][1] += $rhs;
}
}
my $rest_p = $lhs eq 'r';
my $instrument = ($lhs eq $percussive_instrument || $rest_p)? undef: $main_instrument; # FIXME
my $node = [$lhs, $rhs, ($rest_p? undef: $volume), $instrument] unless $tie_p;
if (defined $grace_note_type) { # zero out the note's duration, in effect ignoring all grace notes for now
$node->[1] = 0;
$node->[4] = {'actual-duration' => $rhs};
}
push @$voice, $node if defined $node;
$note = $lhs;
$tie_p = 0;
$grace_note_type = undef;
no integer;
$current_position += $rhs;
} elsif (defined $directive) {
my $verb = ref $directive? $directive->[0]: $directive;
if (!defined $note) {
log_error "Directive $verb ignored because there is no note before it";
} elsif ($verb eq 'accent') {
my $volume = $voice->[+scalar @$voice - 1]->[2];
if (defined $volume) {
no integer;
$volume *= 1.44;
$volume = 127 if $volume > 127;
$voice->[+scalar @$voice - 1]->[2] = $volume;
}
} elsif ($verb eq 'staccato') {
my $node = $voice->[+scalar @$voice - 1];
no integer;
$node->[4]->{'actual-duration'} = $node->[1]/4;
} elsif ($verb eq 'fermata') {
$voice->[+scalar @$voice - 1]->[1] *= 2; # FIXME
} elsif ($verb eq 'laisserVibrer') {
my $node = $voice->[+scalar @$voice - 1];
$node->[4]->{'laisser-vibrer'} = 1;
} else {
log_error "interpret_melody: Unknown directive \"$verb\"";
}
}
}
push @$it, $voice if $voice;
log_debug sprintf "%s interpreted as %s", $s0,
join(" \\\\ ", map { join(' ', map { $_->[0] } @$_) } @$it) if $debug > 2;
return wantarray? ($it, $typesettable_version): $it;
}
sub event_id ($$;$) {
my($mode, $event, $melody) = @_;
return join('-', map { defined $_? s/[^\.\w]+/_/sgr: () } ($mode, $melody, $event));
}
sub define_event_internal_real ($$$$$$$%) {
my($mode, $melody, $description, $composer, $year, $source, $shared_defs, %event_defs) = @_;
my %it;
my($t0, $thing) = (eval { no integer; Time::HiRes::time },
(defined $melody? $melody: join(' ', ($mode, sort keys %event_defs))) =~ s/^\s+//sr);