summaryrefslogtreecommitdiffstats
path: root/scripts/kdemangen.pl
blob: 0032040abc074e790d1fd4bd9641dd1141c25b6e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
#! /usr/bin/env perl

# kdemangen.pl
# Copyright (C)  2003  Dominique Devriese <devriese@kde.org>

# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.



# Here's a little explanation about this script:
# In order to fix long-standing Debian bug #116485, I've written a
# script that takes a KDE app, and generates a nice man page..  It uses
# the app's "--author" and "--help-all" output, along with a description
# from Debian's control file to get the data.  I think the script works
# great, the man pages look almost hand-written ;) I encourage you all
# to try this out, and very much welcome any feedback, especially as to
# how to integrate this into either the Debian KDE packaging system or
# the KDE build system..

# The idea to do this with a script allows us to easily keep the man
# pages up to date, and is generally very low-trouble for the
# developer...

# The script is attached at the bottom..

# USAGE:
# Suppose you wanted to generate a man page for the KDE-Edu program
# kalzium..  Then you would
# 1 cd to /path/to/kde/srcs/tdeedu/debian  ( necessary so the script
#   finds the Debian control file.. )
# 2 run "/path/to/kdemangen.pl $(which kstars) > kstars.1"
# 3 run "man ./kstars.1" to check out the generated page..

# PROBLEMS:
# Only works for full TDE applications that use TDECmdLineArgs (
# inherent to my approach, but most KDE apps fulfill this requirement
# )

use warnings;
use strict;

sub optionstonroff
  {
    my $options = shift;
    my $ret = "";
    foreach( split /\n/, $options )
      {
	if( /^  (--?[[:alpha:]]+, )?(--[[:alpha:]-]*|-[[:alpha:]])( <[[:alpha:] ]*>| [[:alpha:]]*)? *(.*)$/ )
	  {
	    my $short;
	    my $long;
	    my $arg;
	    my $desc;
	    if( $1 ) { $short = $1; } else { $short = ""; };
	    if( $2 ) { $long = $2; } else { $long = ""; };
	    if( $3 ) { $arg = $3; } else { $arg = ""; };
	    if( $4 ) { $desc = $4; } else { $desc = ""; };
	    $short =~ s/-/\\-/g;
	    $long =~ s/-/\\-/g;
	    $arg =~ s/-/\\-/g;
	    $ret .= ".TP\n";
	    $ret .= ".B $short $long $arg\n";
	    $ret .= "$desc\n";
	  }
	elsif( /^  ([[:alpha:]]+) +(.*)$/ )
	  {
	    $ret .= ".TP\n";
	    $ret .= ".B $1\n";
	    $ret .= "$2\n";
	  }
	elsif( /^ +(.*)$/ )
	  {
	    $ret .= "$1\n";
	  }
	elsif( /^(.*)$/ )
	  {
	    $ret .= ".SS $1\n";
	    # this means a header like "Qt Options:" I'm wondering
	    # what to do with this, I don't know enough nroff to
	    # format it nicely, I'm affraid..
	  }
      }
    return $ret;
  };

sub sortoptionsfromnroff {
    # Zack Cerza

    # Rather than redo Dominique's optionstonroff(), I decided
    # to make this function to sort the options sections created
    # by his function.

    # What it does is read line-by-line and first determine which
    # section it's looking at via the ".SS <SECTION>" lines. Once
    # it knows, it sets a "$in_<SECTION>" variable to "1" and
    # begins to write the section data into $<SECTION>. When it
    # gets to a line that contains only ".SS ", it sets
    # $in_<SECTION> to "0" and continues.

    # It's a little messy, but it's the only way I could 
    # get it to work with what little knowledge I had.

    # This is the first time I've used Perl. Be kind.

    my $options = shift;
    my $ret="";

    my $in_gen_opts = "0";
    my $gen_opts = "";
    my $in_qt_opts = "0";
    my $qt_opts = "";
    my $in_kde_opts = "0";
    my $kde_opts = "";
    my $in_opts = "0";
    my $opts = "";
    my $in_args = "0";
    my $args = "";

    foreach ( split /\n/, $options ) {
        if( $in_gen_opts == "1" ) {
	    if( /^(\.SS )$/ ) { $in_gen_opts = "0"; }
	    $gen_opts .= $_;
	    $gen_opts .= "\n";
	}
	if( /^(\.SS.+Generic options:)$/ ) 
	  { $in_gen_opts = "1"; $gen_opts .= $1; $gen_opts .= "\n"; }
      
        if( $in_qt_opts == "1" ) {
	    if( /^(\.SS )$/ ) { $in_qt_opts = "0"; }
	    $qt_opts .= $_;
	    $qt_opts .= "\n";
	}
        if( /^(\.SS.+Qt options:)$/ ) 
	  { $in_qt_opts = "1"; $qt_opts .= $1; $qt_opts .= "\n"; }

        if( $in_kde_opts == "1" ) {
	    if( /^(\.SS )$/ ) { $in_kde_opts = "0"; }
	    $kde_opts .= $_;
	    $kde_opts .= "\n";
	}
        if( /^(\.SS.+KDE options:)$/ ) 
	  { $in_kde_opts = "1"; $kde_opts .= $1; $kde_opts .= "\n"; }
        
	if( $in_opts == "1" ) {
	    if( /^(\.SS )$/ ) { $in_opts = "0"; }
	    $opts .= $_;
	    $opts .= "\n";
	}
        if( /^(\.SS.+Options:)$/ ) 
	  { $in_opts = "1"; $opts .= $1; $opts .= "\n"; }

        if( $in_args == "1" ) {
	    if( /^(\.SS )$/ ) { $in_args = "0"; }
	    $args .= $_;
	    $args .= "\n";
	}
        if( /^(\.SS.+Arguments:)$/ ) 
	  { $in_args = "1"; $args .= ".SS\n"; $args .= $1; $args .= "\n"; }
      }
    $ret .= $args;
    $ret .= $opts;
    $ret .= $gen_opts;
    $ret .= $kde_opts;
    $ret .= $qt_opts;
    return $ret;
  };

sub usage
  {
    print "This script generates a nice manual page for a KDE app which uses TDECmdLineArgs..\n";
    print "USAGE: $0 app\n";
    print "There's more information about how to use this script in the comments at the front of the source..\n"
  };

if( $#ARGV < 0 ){
  usage();
  exit 1;
}

my $runapp = "$ARGV[0]";
if ( ! -x $runapp )
  {
    print "Error: $runapp is not executable.\n";
    exit 1;
  }
else { $runapp = "KDE_LANG=en_US $runapp"; };

my $shortdescription = `$runapp --help | sed -ne '3p'`;
chomp $shortdescription;

my $synopsis = `$runapp --help | sed -n '1p' | sed -e 's/[^:]*: //'`;
chomp $synopsis;
$synopsis =~ s/-/\\-/g;
my $appname = $synopsis;
$appname =~ s/ .*$//;
my $ucappname = uc $appname;

my $options = `$runapp --help-all | sed -e '1,4d'`;
$options = optionstonroff( $options );
$options = sortoptionsfromnroff( $options );

my $timespec = ucfirst `date '+%b %G'`;
chomp $timespec;

my $description = $shortdescription;
if( -r "control" )
  {
    $description = `cat control | sed -ne '/^Description:/,/^\$/p' | egrep -v '^\\w*:.*\$' | sed -e 's/^ //' | sed -e 's/^\\.//'`;
# leads to problems in some cases :(
#    $description =~ s/KDE ?/\n.SM KDE\n/g;
  }

my $authors = `$runapp --author | sed -ne '2,\$p' | sed -e '\$d' | sed -e 's/^ *//'`;
$authors =~ s/\n/\n.br\n/g;

print <<EOF;
.\\\" This file was generated by kdemangen.pl
.TH $ucappname 1 \"$timespec\" \"Trinity Desktop Environment\" \"$shortdescription\"
.SH NAME
$appname
\\- $shortdescription
.SH SYNOPSIS
$synopsis
.SH DESCRIPTION
$description
.SH OPTIONS
$options
.SH SEE ALSO
Full user documentation is available through the KDE Help Center.  You can also enter the URL
.BR help:/$appname/
directly into konqueror or you can run 
.BR "`khelpcenter help:/$appname/'"
from the command-line.
.br
.SH AUTHORS
.nf
$authors
EOF