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annotate scripts/mkdoc.pl @ 23220:092078913d54

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maint: Merge stable to default.
author John W. Eaton <jwe@octave.org>
date Wed, 22 Feb 2017 12:58:07 -0500
parents 23847979b91e 3ac9f9ecfae5
children 675ad11b5c05
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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b0960d4afe5f scripts/mkdoc.pl: improve perl code portability.
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1 #! /usr/bin/perl
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2 use utf8;
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3
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4 # Copyright (C) 2012-2017 Rik Wehbring
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5 #
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6 # This file is part of Octave.
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7 #
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8 # Octave is free software; you can redistribute it and/or modify it
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9 # under the terms of the GNU General Public License as published by
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10 # the Free Software Foundation; either version 3 of the License, or
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11 # (at your option) any later version.
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12 #
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13 # Octave is distributed in the hope that it will be useful, but
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14 # WITHOUT ANY WARRANTY; without even the implied warranty of
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 # GNU General Public License for more details.
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17 #
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18 # You should have received a copy of the GNU General Public License
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19 # along with Octave; see the file COPYING. If not, see
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20 # <http://www.gnu.org/licenses/>.
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21
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22 use strict;
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23 use warnings;
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24 use File::Spec;
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25 use Cwd;
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26
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27 ## Expecting arguments in this order:
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28 ##
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29 ## SRCDIR SRCDIR-FILES ...
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30
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31 unless (@ARGV >= 2) { die "Usage: $0 srcdir m_filename1 ..." ; }
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32
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33 my $srcdir = shift (@ARGV);
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34
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35 print <<__END_OF_MSG__;
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36 ### DO NOT EDIT!
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37 ###
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38 ### This file is generated automatically from Octave source files.
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39 ### Edit source files directly and run make to update this file.
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40
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41 __END_OF_MSG__
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42
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43 MFILE: foreach my $m_fname (@ARGV)
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44 {
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45 my $full_fname = File::Spec->catfile ($srcdir, $m_fname);
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46 my @paths = File::Spec->splitdir ($full_fname);
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47 if (@paths < 3
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48 || $paths[-2] eq "private" # skip private directories
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49 || $paths[-1] !~ s/(\.in|)\.m$//i) # skip non m-files, and remove extension
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50 { next MFILE; }
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51
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52 ## @classes will have @class/method as their function name
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53 my $fcn = $paths[-2] =~ m/^@/ ? File::Spec->catfile (@paths[-2, -1])
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54 : $paths[-1];
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55
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56 my @help_txt = gethelp ($fcn, $full_fname);
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57 next MFILE unless @help_txt;
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58
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59 print "\x{1d}$fcn\n";
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60 print "\@c $fcn $m_fname\n";
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61
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62 foreach $_ (@help_txt)
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63 {
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64 my $in_example = (m/\s*\@example\b/ .. m/\s*\@end\s+example\b/);
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65 s/^\s+\@/\@/ unless $in_example;
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66 s/^\s+(\@(?:end)\s+(group|example))/$1/;
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67 print $_;
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68 }
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69 }
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70
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71 ################################################################################
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72 # Subroutines
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73 ################################################################################
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74 sub gethelp
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75 {
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76 my $fcn = shift;
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77 my $fname = shift;
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78 open (my $fh, "<", $fname) or return;
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79
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80 my @help_txt;
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81 while (my $line = <$fh>)
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82 {
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83 next if $line =~ m/^\s*$/; # skip empty lines
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84 last if $line !~ m/^\s*(#|%)/; # out of here once code starts
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85
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86 my $reading_block = sub {defined ($line = <$fh>) && $line !~ m/^\s*$/};
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87
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88 ## Skip this block
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89 if ($line =~ /(Copyright|Author)/)
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90 { while (&$reading_block ()) {} }
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91 else
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92 {
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93 do
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94 {
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95 $line =~ s/^\s*(%|#)+ ?//;
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96 push (@help_txt, $line);
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97 } while (&$reading_block ());
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98 last;
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99 }
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100 }
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101
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102 close ($fh);
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103 return @help_txt;
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104 }