xref: /freebsd/usr.bin/getconf/fake-gperf.awk (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
1#!/usr/bin/awk -f
2# $FreeBSD$
3BEGIN {
4  state = 0;
5  struct_seen = "";
6}
7/^%{$/ && state == 0 {
8  state = 1;
9  next;
10}
11/^%}$/ && state == 1 {
12  state = 0;
13  next;
14}
15state == 1 { print; next; }
16/^struct/ && state == 0 {
17  print;
18  struct_seen = $2;
19  next;
20}
21/^%%$/ && state == 0 {
22  state = 2;
23  if (struct_seen !~ /^$/) {
24    print "static const struct", struct_seen, "wordlist[] = {";
25  } else {
26    print "static const struct map {";
27    print "\tconst char *name;";
28    print "\tint key;";
29    print "\tint valid;";
30    print "} wordlist[] = {";
31    struct_seen = "map";
32  }
33  next;
34}
35/^%%$/ && state == 2 {
36  state = 3;
37  print "\t{ NULL, 0, 0 }";
38  print "};";
39  print "#define\tNWORDS\t(sizeof(wordlist)/sizeof(wordlist[0]) - 1)";
40  print "static const struct map *";
41  print "in_word_set(const char *word)";
42  print "{";
43  print "\tconst struct", struct_seen, "*mp;";
44  print "";
45  print "\tfor (mp = wordlist; mp < &wordlist[NWORDS]; mp++) {";
46  print "\t\tif (strcmp(word, mp->name) == 0)";
47  print "\t\t\treturn (mp);";
48  print "\t}";
49  print "\treturn (NULL);";
50  print "}";
51  print "";
52  next;
53}
54state == 2 && NF == 2 {
55  name = substr($1, 1, length($1) - 1);
56  printf "#ifdef %s\n", $2;
57  printf "\t{ \"%s\", %s, 1 },\n", name, $2;
58  print "#else";
59  printf "\t{ \"%s\", 0, 0 },\n", name, $2;
60  print "#endif"
61  next;
62}
63state == 3 { print; next; }
64{
65				# eat anything not matched.
66}
67