blob: 41162ecee395cf9c376605a105913750c7b0c0a5 (
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
|
#!/usr/bin/perl
use strict;
use warnings;
use constant {
START => 0,
HAVE_IFNDEF => 1,
HAVE_DEFINE => 2,
HAVE_ENDIF => 3,
HAVE_PRAGMA_ONCE => 4,
};
my $state = START;
my $blank_count = 0;
my $endif = '';
while (<>) {
if ($state == START) {
if (/^#ifndef [a-zA-Z_][a-zA-Z0-9_]*$/) {
$state = HAVE_IFNDEF;
print "#pragma once\n";
} else {
if (/^#pragma once$/) {
$state = HAVE_PRAGMA_ONCE;
}
print;
}
} elsif ($state == HAVE_IFNDEF) {
if (/^#define [a-zA-Z_][a-zA-Z0-9_]*$/) {
$blank_count = 0;
$state = HAVE_DEFINE;
} else {
print;
}
} elsif ($state == HAVE_DEFINE) {
if (/^#endif/) {
$endif = $_;
$state = HAVE_ENDIF;
} elsif (/^$/) {
$blank_count++;
} else {
for (my $i = 0; $i < $blank_count; $i++) {
print "\n";
}
$blank_count = 0;
print;
}
} elsif ($state == HAVE_ENDIF) {
for (my $i = 0; $i < $blank_count; $i++) {
print "\n";
}
$blank_count = 0;
print $endif;
$state = HAVE_DEFINE;
if (/^#endif/) {
$endif = $_;
$state = HAVE_ENDIF;
} elsif (/^$/) {
$blank_count++;
} else {
print;
}
} elsif ($state == HAVE_PRAGMA_ONCE) {
print;
}
if (eof) {
if ($state != HAVE_ENDIF && $state != HAVE_PRAGMA_ONCE) {
print STDERR "Malformed header file: $ARGV\n";
exit 1;
}
$state = START;
$blank_count = 0;
}
}
|
