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
|
# Leave the first line of this file blank!
# This is a Perl script; the following two lines allow us to avoid
# embedding the path of the perl interpreter in the script.
eval "exec perl -S $0 $*"
if $running_under_some_shell;
#---------------------------------------------------------------------------#
# Copyright (C) 1995 The University of Melbourne.
# This file may only be copied under the terms of the GNU General
# Public License - see the file COPYING in the Mercury distribution.
#---------------------------------------------------------------------------#
# This script converts .mod files to .c files.
sub println {
local ($line) = @_;
if ($line =~ /\n/) {
print "/* oops - line = $line */\n";
}
print "$line\n";
$line_count++;
}
sub printlines {
local ($lines) = @_;
foreach $line (split(/\n/,$lines)) {
do println($line);
}
}
$decl = $code = $init = $special_init = $gnudecl = $gnuinit = "";
$in_module = $in_code = 0;
$init_funcs = "";
$output_init = 0;
unshift(@ARGV, '-') if $#ARGV < $[;
FILE:
while ($ARGV = shift) {
if ($ARGV eq "-s") {
shift;
next FILE;
}
if ($ARGV =~ /^-s/) {
next FILE;
}
open(F, $ARGV) || die "mod2c: can't open input file `$ARGV': $!\n";
LINE:
while (<F>) {
$target = $ARGV;
$target =~ s/\.mod//;
$target =~ s/.*\///;
if ($output_init == 0) {
do println("/*");
do println("INIT mercury_sys_init_$target");
do println("ENDINIT");
do println("*/");
$output_init = 1;
}
if (/^BEGIN_MODULE\((\w+)\)/) {
$module = $1;
$in_module = 1;
next LINE;
}
if (/^BEGIN_CODE/) {
$in_code = 1;
next LINE;
}
if (/^END_MODULE/) {
do printlines($decl);
do println("");
do println("BEGIN_MODULE($module)");
do printlines($special_init);
do printlines($init);
do println("BEGIN_CODE");
do printlines($code);
do println("END_MODULE");
$init_funcs .= "\t$module();\n";
$decl = $code = $init = $special_init = "";
$in_module = $in_code = 0;
next LINE;
}
if (! $in_module) {
chop;
do println("$_");
next LINE;
}
if (! $in_code) {
$special_init .= $_;
next LINE;
}
$save = $_;
s/^[ \t]*//;
($label, $_) = split;
if ($label =~ /^[a-zA-Z0-9_]*:$/)
{
chop $label;
if ($label =~ /^default/ || $label =~ /^otherwise/) {
$code .= $save;
next LINE;
}
#
# A label is considered an entry point if
# - it starts with "do_" (eg. do_fail)
# - it matches <letters and underlines><underline><digits>
# but does NOT start with "aux"
# - it matches the same pattern followed by "_input"
#
# A label is considered a local entry point if
# - it matches <letters and underlines><underline><digits>_l
# but does NOT start with "aux"
#
if ($label =~ /^do_/ ||
($label =~ /^([a-zA-Z0-9_]+)_([0-9]+)$/ && ! ($label =~ /^aux/)) ||
($label =~ /^([a-zA-Z0-9_]+)_([0-9]+)_input$/ && ! ($label =~ /^aux/)))
{
$type = "entry";
}
else {
if ($label =~ /^([a-zA-Z0-9_]+)_([0-9]+)_l$/ && ! ($label =~ /^aux/))
{
$type = "local";
}
else
{
$type = "label";
}
}
$init .= "\tinit_$type($label);\n";
if ($type eq "entry") {
$decl .= "Define_extern_entry($label);\n";
} else {
$decl .= "Declare_$type($label);\n";
}
$code .= "Define_$type($label);\n";
} else {
$code .= $save;
}
}
}
do println("void mercury_sys_init_$target(void); /* suppress gcc warning */");
do println("void mercury_sys_init_$target(void) {");
do printlines($init_funcs);
do println("}");
|
