usr.bin/getconf/fake-gperf.awk

   1 #!/usr/bin/awk -f
   2 # $FreeBSD: src/usr.bin/getconf/fake-gperf.awk,v 1.2.2.1 2002/10/27 04:18:40 wollman Exp $
   3 # $DragonFly: src/usr.bin/getconf/fake-gperf.awk,v 1.2 2003/06/17 04:29:27 dillon Exp $
   4 BEGIN {
   5   state = 0;
   6   struct_seen = "";
   7 }
   8 /^%{$/ && state == 0 {
   9   state = 1;
  10   next;
  11 }
  12 /^%}$/ && state == 1 {
  13   state = 0;
  14   next;
  15 }
  16 state == 1 { print; next; }
  17 /^struct/ && state == 0 {
  18   print;
  19   struct_seen = $2;
  20   next;
  21 }
  22 /^%%$/ && state == 0 {
  23   state = 2;
  24   print "#include <stddef.h>";
  25   print "#include <string.h>";
  26   if (struct_seen !~ /^$/) {
  27     print "static const struct", struct_seen, "wordlist[] = {";
  28   } else {
  29     print "static const struct map {";
  30     print "\tconst char *name;";
  31     print "\tint key;";
  32     print "\tint valid;";
  33     print "} wordlist[] = {";
  34     struct_seen = "map";
  35   }
  36   next;
  37 }
  38 /^%%$/ && state == 2 {
  39   state = 3;
  40   print "\t{ NULL }";
  41   print "};";
  42   print "#define\tNWORDS\t(sizeof(wordlist)/sizeof(wordlist[0]) - 1)";
  43   print "static const struct map *";
  44   print "in_word_set(const char *word, unsigned int len)";
  45   print "{";
  46   print "\tconst struct", struct_seen, "*mp;";
  47   print "";
  48   print "\tfor (mp = wordlist; mp < &wordlist[NWORDS]; mp++) {";
  49   print "\t\tif (strcmp(word, mp->name) == 0)";
  50   print "\t\t\treturn (mp);";
  51   print "\t}";
  52   print "\treturn (NULL);";
  53   print "}";
  54   print "";
  55   next;
  56 }
  57 state == 2 && NF == 2 {
  58   name = substr($1, 1, length($1) - 1);
  59   printf "#ifdef %s\n", $2;
  60   printf "\t{ \"%s\", %s, 1 },\n", name, $2;
  61   print "#else";
  62   printf "\t{ \"%s\", 0, 0 },\n", name, $2;
  63   print "#endif"
  64   next;
  65 }
  66 state == 3 { print; next; }
  67 {
  68                                 # eat anything not matched.
  69 }