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
|
#!/bin/sh
##############################################################################
# This is essentially a Perl program. We exec the Perl interpreter specifying
# this same file as the Perl program and use the -x option to cause the Perl
# interpreter to skip down to the Perl code. The reason we do this instead of
# just making /usr/bin/perl the script interpreter (instead of /bin/sh) is
# that the user may have multiple Perl interpreters and the one he wants to
# use is properly located in the PATH. The user's choice of Perl interpreter
# may be crucial, such as when the user also has a PERL5LIB environment
# variable and it selects modules that work with only a certain main
# interpreter program.
#
# An alternative some people use is to have /usr/bin/env as the script
# interpreter. We don't do that because we think the existence and
# compatibility of /bin/sh is more reliable.
#
# Note that we aren't concerned about efficiency because the user who needs
# high efficiency can use directly the programs that this program invokes.
#
##############################################################################
exec perl -w -x -S -- "$0" "$@"
#!/usr/bin/perl
#============================================================================
# This is a compatibility interface to Pamflip.
#
# It exists so existing programs and procedures that rely on Pnmflip
# syntax continue to work. You should not make new use of Pnmflip and
# if you modify an old use, you should upgrade it to use Pamflip.
#
# The one way that Pamflip is not backward compatible with Pnmflip is
# that with Pnmflip, you can do this:
#
# pnmflip -xy -tb
#
# and that causes pnmflip to do both transformations (i.e. the same thing
# as -r270). With Pamflip, you can't specify multiple (or zero) flip
# type options. Instead, you would use the -xform option:
#
# pamflip -xform=transpose,topbottom
#
#============================================================================
use strict;
use File::Basename;
use Cwd 'abs_path';
my $xformOpt;
my @miscOptions;
my $infile;
$xformOpt = '-xform='; # initial value
@miscOptions = ();
foreach (@ARGV) {
if (/^-/) {
# It's an option
if (/^-lr$/ || /^-le.*$/) {
$xformOpt .= "leftright,";
} elsif (/^-tb$/ || /^-to.*$/) {
$xformOpt .= "topbottom,";
} elsif (/^-x.*$/ || /^-tr.*$/) {
$xformOpt .= "transpose,";
} elsif (/^-r9.*$/ || /^-rotate9.*$/ || /^-cc.*$/) {
$xformOpt .= "transpose,topbottom,";
} elsif (/^-r1.*$/ || /^-rotate1.*$/) {
$xformOpt .= "leftright,topbottom,";
} elsif (/^-r2.*$/ || /^-rotate2.*$/ || /^-cw$/) {
$xformOpt .= "transpose,leftright,";
} else {
# It's not a transformation option; could be a Netpbm common
# option.
push(@miscOptions, $_);
}
} else {
# It's a parameter
if (defined($infile)) {
print(STDERR
"You may specify at most one non-option parameter.\n");
exit(10);
} else {
$infile = $_;
}
}
}
# Finish off the -xform option by removing any trailing comma
$/ = ',';
chomp($xformOpt);
my $infileParm = defined($infile) ? $infile : "-";
# We want to get Pamflip from the same directory we came from if
# it's there. Frequently, the directory containing Netpbm programs is
# not in the PATH and we were invoked by absolute path.
my $my_directory = abs_path(dirname($0));
$ENV{"PATH"} = $my_directory . ":" . $ENV{"PATH"};
exec("pamflip", @miscOptions, $xformOpt, $infileParm);
|
