/usr/share/automake-1.9/Automake/Wrap.pm is in automake1.9 1.9.6+nogfdl-3.1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | # Copyright (C) 2003 Free Software Foundation, Inc.
# 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, 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.
package Automake::Wrap;
use strict;
require Exporter;
use vars '@ISA', '@EXPORT_OK';
@ISA = qw/Exporter/;
@EXPORT_OK = qw/wrap makefile_wrap/;
=head1 NAME
Automake::Wrap - a paragraph formater
=head1 SYNOPSIS
use Automake::Wrap 'wrap', 'makefile_wrap';
print wrap ($first_ident, $next_ident, $end_of_line, $max_length,
@values);
print makefile_wrap ("VARIABLE = ", " ", @values);
=head1 DESCRIPTION
This modules provide facility to format list of strings. It is
comparable to Perl's L<Text::Wrap>, however we can't use L<Text::Wrap>
because some versions will abort when some word to print exceed the
maximum length allowed. (Ticket #17141, fixed in Perl 5.8.0.)
=head2 Functions
=over 4
=cut
# tab_length ($TXT)
# -----------------
# Compute the length of TXT, counting tab characters as 8 characters.
sub tab_length($)
{
my ($txt) = @_;
my $len = length ($txt);
$len += 7 * ($txt =~ tr/\t/\t/d);
return $len;
}
=item C<wrap ($head, $fill, $eol, $max_len, @values)>
Format C<@values> as a block of text that starts with C<$head>,
followed by the strings in C<@values> separated by spaces or by
C<"$eol\n$fill"> so that the lenght of each line never exceed
C<$max_len>.
The C<$max_len> contraint is ignored for C<@values> items which
are too big to fit alone one a line.
The constructed paragraph is C<"\n">-terminated.
=cut
sub wrap($$$$@)
{
my ($head, $fill, $eol, $max_len, @values) = @_;
my $result = $head;
my $column = tab_length ($head);
my $fill_len = tab_length ($fill);
my $eol_len = tab_length ($eol);
my $not_first_word = 0;
foreach (@values)
{
my $len = tab_length ($_);
# See if the new variable fits on this line.
# (The + 1 is for the space we add in front of the value.).
if ($column + $len + $eol_len + 1 > $max_len
# Do not break before the first word if it does not fit on
# the next line anyway.
&& ($not_first_word || $fill_len + $len + $eol_len + 1 <= $max_len))
{
# Start a new line.
$result .= "$eol\n" . $fill;
$column = $fill_len;
}
elsif ($not_first_word)
{
# Add a space only if result does not already end
# with a space.
$_ = " $_" if $result =~ /\S\z/;
++$len;
}
$result .= $_;
$column += $len;
$not_first_word = 1;
}
$result .= "\n";
return $result;
}
=item C<makefile_wrap ($head, $fill, @values)>
Format C<@values> in a way which is suitable for F<Makefile>s.
This is comparable to C<wrap>, except C<$eol> is known to
be C<" \\">, and the maximum length has been hardcoded to C<72>.
A space is appended to C<$head> when this is not already
the case.
This can be used to format variable definitions or dependency lines.
makefile_wrap ('VARIABLE =', "\t", @values);
makefile_wrap ('rule:', "\t", @dependencies);
=cut
sub makefile_wrap ($$@)
{
my ($head, $fill, @values) = @_;
if (@values)
{
$head .= ' ' if $head =~ /\S\z/;
return wrap $head, $fill, " \\", 72, @values;
}
return "$head\n";
}
1;
### Setup "GNU" style for perl-mode and cperl-mode.
## Local Variables:
## perl-indent-level: 2
## perl-continued-statement-offset: 2
## perl-continued-brace-offset: 0
## perl-brace-offset: 0
## perl-brace-imaginary-offset: 0
## perl-label-offset: -2
## cperl-indent-level: 2
## cperl-brace-offset: 0
## cperl-continued-brace-offset: 0
## cperl-label-offset: -2
## cperl-extra-newline-before-brace: t
## cperl-merge-trailing-else: nil
## cperl-continued-statement-offset: 2
## End:
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