193 lines
5.5 KiB
Perl
Executable file
193 lines
5.5 KiB
Perl
Executable file
#!/usr/bin/env perl
|
|
#***************************************************************************
|
|
# _ _ ____ _
|
|
# Project ___| | | | _ \| |
|
|
# / __| | | | |_) | |
|
|
# | (__| |_| | _ <| |___
|
|
# \___|\___/|_| \_\_____|
|
|
#
|
|
# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
#
|
|
# This software is licensed as described in the file COPYING, which
|
|
# you should have received as part of this distribution. The terms
|
|
# are also available at https://curl.se/docs/copyright.html.
|
|
#
|
|
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
# copies of the Software, and permit persons to whom the Software is
|
|
# furnished to do so, under the terms of the COPYING file.
|
|
#
|
|
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
# KIND, either express or implied.
|
|
#
|
|
# SPDX-License-Identifier: curl
|
|
#
|
|
###########################################################################
|
|
|
|
=begin comment
|
|
|
|
This script converts an nroff file to curldown
|
|
|
|
Example: cd2nroff [options] <file.md> > <file.3>
|
|
|
|
Note: when converting .nf sections, this tool does not know if the
|
|
section is code or just regular quotes. It then assumes and uses ~~~c
|
|
for code.
|
|
|
|
=end comment
|
|
=cut
|
|
|
|
my $nroff2cd = "0.1"; # to keep check
|
|
|
|
sub single {
|
|
my ($f)=@_;
|
|
open(F, "<:crlf", "$f") ||
|
|
return 1;
|
|
my $line;
|
|
my $title;
|
|
my $section;
|
|
my $source;
|
|
my @seealso;
|
|
my @desc;
|
|
my $header; # non-zero when TH is passed
|
|
my $quote = 0; # quote state
|
|
while(<F>) {
|
|
$line++;
|
|
my $d = $_;
|
|
if($_ =~ /^.\\\"/) {
|
|
# a comment we can ignore
|
|
next;
|
|
}
|
|
if(!$header) {
|
|
if($d =~ /.so (.*)/) {
|
|
# this is basically an include, so do that
|
|
my $f = $1;
|
|
# remove leading directory
|
|
$f =~ s/(.*?\/)//;
|
|
close(F);
|
|
open(F, "<:crlf", "$f") || return 1;
|
|
}
|
|
if($d =~ /^\.TH ([^ ]*) (\d) \"(.*?)\" ([^ \n]*)/) {
|
|
# header, this needs to be the first thing after leading comments
|
|
$title = $1;
|
|
$section = $2;
|
|
# date is $3
|
|
$source = $4;
|
|
# if there are enclosing quotes around source, remove them
|
|
$source =~ s/[\"\'](.*)[\"\']\z/$1/;
|
|
$header = 1;
|
|
|
|
print <<HEAD
|
|
---
|
|
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
SPDX-License-Identifier: curl
|
|
Title: $title
|
|
Section: $section
|
|
Source: $source
|
|
HEAD
|
|
;
|
|
}
|
|
next;
|
|
}
|
|
|
|
if($quote) {
|
|
if($d =~ /^\.SH/) {
|
|
#end of quote without an .fi
|
|
$quote = 0;
|
|
push @desc, "~~~\n";
|
|
}
|
|
elsif($d =~ /^\.fi/) {
|
|
#end of quote
|
|
$quote = 0;
|
|
push @desc, "~~~\n";
|
|
next;
|
|
}
|
|
else {
|
|
# double-backslashes converted to single ones
|
|
$d =~ s/\\\\/\\/g;
|
|
push @desc, $d;
|
|
next;
|
|
}
|
|
}
|
|
if($d =~ /^\.SH (.*)/) {
|
|
my $word = $1;
|
|
# if there are enclosing quotes, remove them first
|
|
$word =~ s/[\"\'](.*)[\"\']\z/$1/;
|
|
if($word eq "SEE ALSO") {
|
|
# we just slurp up this section
|
|
next;
|
|
}
|
|
push @desc, "\n# $word\n\n";
|
|
}
|
|
elsif($d =~ /^\.(RS|RE)/) {
|
|
# ignore these
|
|
}
|
|
elsif($d =~ /^\.IP (.*)/) {
|
|
my $word = $1;
|
|
# if there are enclosing quotes, remove them first
|
|
$word =~ s/[\"\'](.*)[\"\']\z/$1/;
|
|
push @desc, "\n## $word\n\n";
|
|
}
|
|
elsif($d =~ /^\.IP/) {
|
|
# .IP with no text we just skip
|
|
}
|
|
elsif($d =~ /^\.BR (.*)/) {
|
|
# only used for SEE ALSO
|
|
my $word = $1;
|
|
# remove trailing comma
|
|
$word =~ s/,\z//;
|
|
|
|
for my $s (split(/,/, $word)) {
|
|
# remove all double quotes
|
|
$s =~ s/\"//g;
|
|
# tream leading whitespace
|
|
$s =~ s/^ +//g;
|
|
push @seealso, $s;
|
|
}
|
|
}
|
|
elsif($d =~ /^\.I (.*)/) {
|
|
push @desc, "*$1*\n";
|
|
}
|
|
elsif($d =~ /^\.B (.*)/) {
|
|
push @desc, "**$1**\n";
|
|
}
|
|
elsif($d =~ /^\.nf/) {
|
|
push @desc, "~~~c\n";
|
|
$quote = 1;
|
|
}
|
|
else {
|
|
# embolden
|
|
$d =~ s/\\fB(.*?)\\fP/**$1**/g;
|
|
# links to "curl.*()" are left bare since cd2nroff handles them
|
|
# specially
|
|
$d =~ s/\\fI(curl.*?\(3\))\\fP/$1/ig;
|
|
# emphasize
|
|
$d =~ s/\\fI(.*?)\\fP/*$1*/g;
|
|
# emphasize on a split line
|
|
$d =~ s/\\fI/*/g;
|
|
# bold on a split line
|
|
$d =~ s/\\fB/**/g;
|
|
# remove backslash amp
|
|
$d =~ s/\\&//g;
|
|
# remove backslashes
|
|
$d =~ s/\\//g;
|
|
# fix single quotes
|
|
$d =~ s/\(aq/'/g;
|
|
# fix double quotes
|
|
$d =~ s/\(dq/\"/g;
|
|
push @desc, $d;
|
|
}
|
|
}
|
|
close(F);
|
|
|
|
print "See-also:\n";
|
|
for my $s (sort @seealso) {
|
|
print " - $s\n" if($s);
|
|
}
|
|
print "---\n";
|
|
print @desc;
|
|
|
|
return !$header;
|
|
}
|
|
|
|
exit single($ARGV[0]);
|
|
|