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#!/usr/bin/perl
# Generate ZSH completion
use strict;
use warnings;
my $mpv = $ARGV[0] || 'mpv';
my @opts = parse_main_opts('--list-options', '^ (\-\-[^\s\*]*)\*?\s*(.*)');
my @ao = parse_opts('--ao=help', '^ ([^\s\:]*)\s*: (.*)');
my @vo = parse_opts('--vo=help', '^ ([^\s\:]*)\s*: (.*)');
my @af = parse_opts('--af=help', '^ ([^\s\:]*)\s*: (.*)');
my @vf = parse_opts('--vf=help', '^ ([^\s\:]*)\s*: (.*)');
my @protos = parse_opts('--list-protocols', '^ ([^\s]*)');
my ($opts_str, $ao_str, $vo_str, $af_str, $vf_str, $protos_str);
$opts_str .= qq{ '$_' \\\n} foreach (@opts);
chomp $opts_str;
$ao_str .= qq{ '$_' \\\n} foreach (@ao);
chomp $ao_str;
$vo_str .= qq{ '$_' \\\n} foreach (@vo);
chomp $vo_str;
$af_str .= qq{ '$_' \\\n} foreach (@af);
chomp $af_str;
$vf_str .= qq{ '$_' \\\n} foreach (@vf);
chomp $vf_str;
$protos_str = join(' ', @protos);
my $profile_comp = <<'EOS';
local -a profiles
local current
for current in "${(@f)$($words[1] --profile=help)}"; do
current=${current//\*/\\\*}
current=${current//\:/\\\:}
current=${current//\[/\\\[}
current=${current//\]/\\\]}
if [[ $current =~ $'\t'([^$'\t']*)$'\t'(.*) ]]; then
if [[ -n $match[2] ]]; then
current="$match[1][$match[2]]"
else
current="$match[1]"
fi
profiles=($profiles $current)
fi
done
if [[ $state == show-profile ]]; then
# For --show-profile, only one allowed
if (( ${#profiles} > 0 )); then
_values 'profile' $profiles && rc=0
fi
else
# For --profile, multiple allowed
profiles=($profiles 'help[list profiles]')
_values -s , 'profile(s)' $profiles && rc=0
fi
EOS
chomp $profile_comp;
my $tmpl = <<"EOS";
#compdef mpv
# mpv zsh completion
local curcontext="\$curcontext" state state_descr line
typeset -A opt_args
local rc=1
_arguments -C -S \\
$opts_str
'*:files:->mfiles' && rc=0
case \$state in
ao)
_values -s , 'audio outputs' \\
$ao_str
&& rc=0
;;
vo)
_values -s , 'video outputs' \\
$vo_str
&& rc=0
;;
af)
_values -s , 'audio filters' \\
$af_str
&& rc=0
;;
vf)
_values -s , 'video filters' \\
$vf_str
&& rc=0
;;
profile|show-profile)
$profile_comp
;;
files)
compset -P '*,'
compset -S ',*'
_files -r ',/ \\t\\n\\-' && rc=0
;;
mfiles)
local expl
_tags files urls
while _tags; do
_requested files expl 'media file' _files -g \\
"*.(#i)(asf|asx|avi|flac|flv|m1v|m2p|m2v|m4v|mjpg|mka|mkv|mov|mp3|mp4|mpe|mpeg|mpg|ogg|ogm|ogv|qt|rm|ts|vob|wav|webm|wma|wmv)(-.)" && rc=0
if _requested urls; then
while _next_label urls expl URL; do
_urls "\$expl[@]" && rc=0
compadd -S '' "\$expl[@]" $protos_str && rc=0
done
fi
(( rc )) || return 0
done
;;
esac
return rc
EOS
print $tmpl;
sub parse_main_opts {
my ($cmd, $regex) = @_;
my @list;
my @lines = call_mpv($cmd);
foreach my $line (@lines) {
my ($name, $desc) = ($line =~ /^$regex/) or next;
next if ($desc eq 'removed' || $desc eq 'alias');
if ($desc =~ /^Flag/) {
push @list, $name;
$name =~ /^--(.*)/;
if ($1 !~ /^(\{|\}|v|list-options|really-quiet|no-.*)$/) {
push @list, "--no-$1";
}
} elsif ($desc =~ /^Print/) {
push @list, $name;
} else {
# Option takes argument
my $entry = $name;
$desc =~ s/\:/\\:/g;
$entry .= "=-:$desc:";
if ($desc =~ /^Choices\\: ([^(]*)/) {
my $choices = $1;
$choices =~ s/ +$//; # strip trailing space
$entry .= "($choices)";
# If "no" is one of the choices, it can also be
# negated like a flag (--no-whatever).
if ($choices =~ /\bno\b/) {
$name =~ s/^--/--no-/;
push @list, $name;
}
} elsif ($line =~ /\[file\]/) {
$entry .= '->files';
} elsif ($name =~ /^--(ao|vo|af|vf|profile|show-profile)$/) {
$entry .= "->$1";
}
push @list, $entry;
}
}
# Sort longest first, because zsh won't complete an option listed
# after one that's a prefix of it.
@list = sort {
$a =~ /([^=]*)/; my $ma = $1;
$b =~ /([^=]*)/; my $mb = $1;
length($mb) <=> length($ma)
} @list;
return @list;
}
sub parse_opts {
my ($cmd, $regex) = @_;
my @list;
my @lines = call_mpv($cmd);
foreach my $line (@lines) {
if ($line !~ /^$regex/) {
next;
}
my $entry = $1;
if (defined $2) {
my $desc = $2;
$desc =~ s/\:/\\:/g;
$entry .= "[$desc]";
}
push @list, $entry
}
return @list;
}
sub call_mpv {
my ($cmd) = @_;
my $output = `"$mpv" --no-config $cmd`;
if ($? == -1) {
die "Could not run mpv: $!";
} elsif ($? != 0) {
die "mpv returned " . ($? >> 8) . " with output:\n$output";
}
return split /\n/, $output;
}
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