mirror of https://github.com/moparisthebest/curl
386 lines
7.8 KiB
Perl
Executable File
386 lines
7.8 KiB
Perl
Executable File
#!/usr/bin/env perl
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=begin comment
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This script generates the manpage.
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Example: gen.pl mainpage > curl.1
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Dev notes:
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We open *input* files in :crlf translation (a no-op on many platforms) in
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case we have CRLF line endings in Windows but a perl that defaults to LF.
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Unfortunately it seems some perls like msysgit can't handle a global input-only
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:crlf so it has to be specified on each file open for text input.
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=end comment
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=cut
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my $some_dir=$ARGV[1] || ".";
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opendir(my $dh, $some_dir) || die "Can't opendir $some_dir: $!";
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my @s = grep { /\.d$/ && -f "$some_dir/$_" } readdir($dh);
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closedir $dh;
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my %optshort;
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my %optlong;
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my %helplong;
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my %arglong;
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my %redirlong;
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my %protolong;
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# get the long name version, return the man page string
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sub manpageify {
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my ($k)=@_;
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my $l;
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if($optlong{$k} ne "") {
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# both short + long
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$l = "\\fI-".$optlong{$k}.", --$k\\fP";
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}
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else {
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# only long
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$l = "\\fI--$k\\fP";
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}
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return $l;
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}
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sub printdesc {
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my @desc = @_;
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for my $d (@desc) {
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# skip lines starting with space (examples)
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if($d =~ /^[^ ]/) {
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for my $k (keys %optlong) {
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my $l = manpageify($k);
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$d =~ s/--$k([^a-z0-9_-])/$l$1/;
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}
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}
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print $d;
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}
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}
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sub seealso {
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my($standalone, $data)=@_;
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if($standalone) {
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return sprintf
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".SH \"SEE ALSO\"\n$data\n";
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}
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else {
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return "See also $data. ";
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}
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}
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sub overrides {
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my ($standalone, $data)=@_;
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if($standalone) {
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return ".SH \"OVERRIDES\"\n$data\n";
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}
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else {
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return $data;
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}
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}
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sub protocols {
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my ($standalone, $data)=@_;
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if($standalone) {
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return ".SH \"PROTOCOLS\"\n$data\n";
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}
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else {
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return "($data) ";
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}
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}
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sub added {
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my ($standalone, $data)=@_;
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if($standalone) {
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return ".SH \"ADDED\"\nAdded in curl version $data\n";
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}
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else {
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return "Added in $data. ";
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}
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}
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sub single {
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my ($f, $standalone)=@_;
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open(F, "<:crlf", "$some_dir/$f") ||
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return 1;
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my $short;
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my $long;
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my $tags;
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my $added;
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my $protocols;
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my $arg;
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my $mutexed;
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my $requires;
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my $seealso;
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my $magic; # cmdline special option
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while(<F>) {
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if(/^Short: *(.)/i) {
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$short=$1;
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}
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elsif(/^Long: *(.*)/i) {
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$long=$1;
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}
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elsif(/^Added: *(.*)/i) {
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$added=$1;
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}
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elsif(/^Tags: *(.*)/i) {
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$tags=$1;
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}
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elsif(/^Arg: *(.*)/i) {
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$arg=$1;
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}
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elsif(/^Magic: *(.*)/i) {
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$magic=$1;
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}
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elsif(/^Mutexed: *(.*)/i) {
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$mutexed=$1;
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}
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elsif(/^Protocols: *(.*)/i) {
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$protocols=$1;
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}
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elsif(/^See-also: *(.*)/i) {
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$seealso=$1;
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}
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elsif(/^Requires: *(.*)/i) {
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$requires=$1;
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}
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elsif(/^Help: *(.*)/i) {
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;
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}
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elsif(/^---/) {
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if(!$long) {
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print STDERR "WARN: no 'Long:' in $f\n";
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}
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last;
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}
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else {
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chomp;
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print STDERR "WARN: unrecognized line in $f, ignoring:\n:'$_';"
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}
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}
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my @dest;
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while(<F>) {
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push @desc, $_;
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}
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close(F);
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my $opt;
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if(defined($short) && $long) {
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$opt = "-$short, --$long";
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}
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elsif($short && !$long) {
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$opt = "-$short";
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}
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elsif($long && !$short) {
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$opt = "--$long";
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}
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if($arg) {
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$opt .= " $arg";
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}
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if($standalone) {
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print ".TH curl 1 \"30 Nov 2016\" \"curl 7.52.0\" \"curl manual\"\n";
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print ".SH OPTION\n";
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print "curl $opt\n";
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}
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else {
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print ".IP \"$opt\"\n";
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}
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if($protocols) {
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print protocols($standalone, $protocols);
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}
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if($standalone) {
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print ".SH DESCRIPTION\n";
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}
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printdesc(@desc);
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undef @desc;
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my @foot;
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if($seealso) {
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my @m=split(/ /, $seealso);
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my $mstr;
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for my $k (@m) {
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my $l = manpageify($k);
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$mstr .= sprintf "%s$l", $mstr?" and ":"";
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}
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push @foot, seealso($standalone, $mstr);
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}
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if($requires) {
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my $l = manpageify($long);
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push @foot, "$l requires that the underlying libcurl".
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" was built to support $requires. ";
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}
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if($mutexed) {
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my @m=split(/ /, $mutexed);
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my $mstr;
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for my $k (@m) {
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my $l = manpageify($k);
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$mstr .= sprintf "%s$l", $mstr?" and ":"";
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}
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push @foot, overrides($standalone, "This option overrides $mstr. ");
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}
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if($added) {
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push @foot, added($standalone, $added);
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}
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if($foot[0]) {
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print "\n";
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my $f = join("", @foot);
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$f =~ s/ +\z//; # remove trailing space
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print "$f\n";
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}
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return 0;
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}
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sub getshortlong {
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my ($f)=@_;
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open(F, "<:crlf", "$some_dir/$f");
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my $short;
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my $long;
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my $help;
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my $arg;
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my $protocols;
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while(<F>) {
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if(/^Short: (.)/i) {
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$short=$1;
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}
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elsif(/^Long: (.*)/i) {
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$long=$1;
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}
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elsif(/^Help: (.*)/i) {
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$help=$1;
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}
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elsif(/^Arg: (.*)/i) {
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$arg=$1;
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}
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elsif(/^Protocols: (.*)/i) {
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$protocols=$1;
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}
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elsif(/^---/) {
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last;
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}
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}
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close(F);
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if($short) {
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$optshort{$short}=$long;
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}
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if($long) {
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$optlong{$long}=$short;
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$helplong{$long}=$help;
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$arglong{$long}=$arg;
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$protolong{$long}=$protocols;
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}
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}
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sub indexoptions {
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foreach my $f (@s) {
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getshortlong($f);
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}
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}
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sub header {
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my ($f)=@_;
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open(F, "<:crlf", "$some_dir/$f");
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my @d;
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while(<F>) {
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push @d, $_;
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}
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close(F);
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printdesc(@d);
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}
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sub listhelp {
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foreach my $f (sort keys %helplong) {
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my $long = $f;
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my $short = $optlong{$long};
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my $opt;
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if(defined($short) && $long) {
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$opt = "-$short, --$long";
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}
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elsif($long && !$short) {
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$opt = " --$long";
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}
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my $arg = $arglong{$long};
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if($arg) {
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$opt .= " $arg";
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}
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my $desc = $helplong{$f};
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$desc =~ s/\"/\\\"/g; # escape double quotes
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my $line = sprintf " {\"%s\",\n \"%s\"},\n", $opt, $desc;
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if(length($opt) + length($desc) > 78) {
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print STDERR "WARN: the --$long line is too long\n";
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}
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print $line;
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}
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}
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sub mainpage {
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# show the page header
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header("page-header");
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# output docs for all options
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foreach my $f (sort @s) {
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single($f, 0);
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}
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header("page-footer");
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}
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sub showonly {
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my ($f) = @_;
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if(single($f, 1)) {
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print STDERR "$f: failed\n";
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}
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}
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sub showprotocols {
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my %prots;
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foreach my $f (keys %optlong) {
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my @p = split(/ /, $protolong{$f});
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for my $p (@p) {
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$prots{$p}++;
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}
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}
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for(sort keys %prots) {
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printf "$_ (%d options)\n", $prots{$_};
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}
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}
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sub getargs {
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my $f;
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do {
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$f = shift @ARGV;
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if($f eq "mainpage") {
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mainpage();
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return;
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}
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elsif($f eq "listhelp") {
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listhelp();
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return;
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}
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elsif($f eq "single") {
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showonly(shift @ARGV);
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return;
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}
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elsif($f eq "protos") {
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showprotocols();
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return;
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}
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} while($f);
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print "Usage: gen.pl <mainpage/listhelp/single FILE/protos> [srcdir]\n";
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}
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#------------------------------------------------------------------------
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# learn all existing options
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indexoptions();
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getargs();
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