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|
#!/usr/bin/perl
sub cstr2pod {
local($_) = shift;
s/\\"/"/go;
s/"([^\"]*)"/"C<$1>"/go;
$_;
}
$section = 1;
@section_order = (
'NAME',
'SYNOPSIS',
'DESCRIPTION',
'OPTIONS',
'RETURN VALUE',
'ERRORS',
'EXAMPLES',
'ENVIRONMENT',
'FILES',
'SEE ALSO',
'NOTES',
'CAVEATS',
'WARNINGS',
'DIAGNOSTICS',
'BUGS',
'RESTRICTIONS',
'AUTHOR',
'AUTHORS',
'HISTORY'
);
sub type2word {
my($type) = shift;
return 'INT' if $type eq 'integer';
return 'UINT' if $type eq 'ulong';
return 'STR' if $type eq 'string' || $type eq 'stringlist';
return '' if $type eq 'flag' || $type eq 'counter';
die "Invalid cli option type '$type'";
}
sub add_option {
my($short, $long, $type, $desc) = @_;
my $s = '[B<';
my $o = '=item B<';
if($short) {
$s .= "-$short";
$o .= "-$short";
if($type) {
$s .= " $type";
$o .= " $type";
}
}
if($short && $long) {
$s .= ">]\n[B<";
$o .= ">, B<";
}
if($long) {
$s .= "--$long";
$o .= "--$long";
if($type) {
$s .= "=$type";
$o .= "=$type";
}
}
$s .= ">]\n";
$o .= ">\n\n$desc\n\n";
$synopsis .= $s;
$options = "=over 8\n\n" unless $options;
$options .= $o;
}
sub parse_option {
local($_) = shift;
s/^\s*\{\s*//o;
s/\s*\},?\s*/ /o;
my $short = $1 if s/^'([^\'])',\s*//o;
die "Invalid cli option" unless $short || s/^0,\s*//o;
my $long = $1 if s/^"([^\"]+)",\s*//o;
die "Invalid cli_option" unless $long || s/^0,\s*//o;
my $type = $1 if s/^cli_option::(\S+),\s*//o;
die "Invalid cli_option" unless $type;
$type = &type2word($type);
my $val = $1 if s/^([^,]+),\s*//o;
my $var = $1 if s/^&([^,]+),\s*//o;
my $desc = cstr2pod($1) if s/^"([^,]+)",\s*//o;
die "Invalid cli_option" unless $desc;
$desc =~ s/\.?$/./o if $desc;
my $default = $1 if s/^"([^\"]+)"\s+//o;
die "Invalid cli_option" unless $default || s/^0\s+//o;
$desc .= " Defaults to $default." if $default;
s/\s*\/\/\s*/ /go;
s/^\s*//o;
add_option($short, $long, $type, $_ || $desc);
}
sub parse_options {
$synopsis = "B<$program>\n";
my $line;
while(<>) {
s/^\s+//o;
s/\s+$//o;
if($line && /^\{/o) {
&parse_option($line);
$line = "";
}
next if /^\{\s*0\s*\},?/o;
next if /^\{\s*0\s*,\s*\},?/o;
last if /^\s*\};/o;
$line =~ s/$/ $_/;
}
&parse_option($line) if $line;
$synopsis .= "I<$usage>" if $usage;
$options .= "=back" if $options;
$sections{'SYNOPSIS'} = $synopsis;
$sections{'OPTIONS'} = $options;
}
sub parse_notes {
my $section;
my $title;
while(<>) {
chomp;
last unless /^$/o || s/^\/\/\s*//o;
if(/^[\sA-Z]+$/o) {
$sections{$title} = $section if $title && $section;
undef $section;
$title = $_;
} else {
$section .= "$_\n";
}
}
$sections{$title} = $section if $title && $section;
}
sub parse_header_line {
local($_, $comment) = @_;
if(s/^\s*const\s+char\s*\*\s*cli_(\S+)\s*=\s*//o) {
my $name = $1;
s/;\s*$//o;
s/^\"//;
s/\"$//o;
s/\\n$//o;
s/\\n""/\n/go;
$program = $_ if $name eq 'program';
$prefix = $_ if $name eq 'help_prefix';
$usage = $_ if $name eq 'args_usage';
$suffix = $_ if $name eq 'help_suffix';
}
}
sub parse_header {
my $comment = '';
my $line = '';
while(<>) {
s/^\s+//o;
s/\s+$//o;
if(s/^.*Copyright\s*\(C\)\s*[\d,]+\s*//o) {
$author = $_;
} else {
last if ($program && $prefix && /^$/o);
next if /^#/o;
$comment .= "$1\n" if s|\s*//\s*(.*)$||o;
$line =~ s/$/\n$_/;
if(/;$/o) {
&parse_header_line($line, $comment);
undef $line;
undef $comment;
}
}
}
}
sub parse_description {
while(<>) {
s/^\s+//o;
s/\s+$//o;
last if / cli_options\[\]\s*=\s*\{/o;
next unless s/^\/\/\s*//o;
$description .= "$_\n";
}
}
&parse_header;
&parse_description;
&parse_options;
&parse_notes;
$description .= "\n\n$suffix\n" if $suffix;
$sections{'NAME'} = "$program - $prefix";
$sections{'DESCRIPTION'} = $description;
$sections{'AUTHORS'} = $author if $author;
foreach $section (@section_order) {
print "=head1 $section\n\n$sections{$section}\n\n"
if $sections{$section};
}
1;
|
