usr.bin/getconf/fake-gperf.awk

   1 #!/usr/bin/awk -f
   2 # $FreeBSD: head/usr.bin/getconf/fake-gperf.awk 119312 2003-08-22 17:32:07Z markm $
   3 BEGIN {
   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 }
  15 state == 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 }
  54 state == 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 }
  63 state == 3 { print; next; }
  64 {
  65                                 # eat anything not matched.
  66 }