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- # $Id: memtypes.awk,v 1.4 2006/03/30 14:30:19 paul Exp $
- #
- # Scan a file of memory definitions (see eg memtypes.c) and generate
- # a corresponding header file with an enum of the MTYPE's and declarations
- # for the struct memory_list arrays
- #
- # struct memory_list's must be declared as:
- # '\nstruct memory_list memory_list_<name>[] .....'
- #
- # Each MTYPE_ within the definition must the second token on the line,
- # tokens being delineated by whitespace. It may only consist of the set of
- # characters [[:upper:]_[:digit:]]. Eg:
- #
- # '\n { MTYPE_AWESOME_IPV8 , "Amazing new protocol, says genius" {}..boo'
- #
- # We try to ignore lines whose first token is /* or *, ie C comment lines.
- # So the following should work fine:
- #
- # '/* This is the best memory_list ever!
- # ' * It's got all my MTYPE's */
- # '
- # 'struct memory_list memory_list_my_amazing_mlist[] = =
- # '{
- # ' { MTYPE_DONGLE, "Dongle widget" }
- # ' { MTYPE_FROB, "Frobulator" },
- # '{ MTYPE_WIPPLE, "Wipple combombulator"}
- # '}}}
- #
- # Even if it isn't quite a valid C declaration.
- #
- BEGIN {
- mlistregex = "memory_list_(.*)\\[\\]";
- mtyperegex = "^(MTYPE_[[:upper:]_[:digit:]]+).*";
- header = "/* Auto-generated from memtypes.c by " ARGV[0] ". */\n";
- header = header "/* Do not edit! */\n";
- header = header "\n#ifndef _QUAGGA_MEMTYPES_H\n";
- header = header "#define _QUAGGA_MEMTYPES_H\n";
- footer = "\n#endif /* _QUAGGA_MEMTYPES_H */\n\n";
- mlistformat = "extern struct memory_list memory_list_%s[];";
- printf ("%s\n", header);
- }
- # catch lines beginning with 'struct memory list ' and try snag the
- # memory_list name. Has to be 3rd field.
- ($0 ~ /^struct memory_list /) && (NF >= 3) {
- mlists[lcount++] = gensub(mlistregex, "\\1", "g",$3);
- }
- # snag the MTYPE, it must self-standing and the second field,
- # though we do manage to tolerate the , C seperator being appended
- ($1 !~ /^\/?\*/) && ($2 ~ /^MTYPE_/) {
- mtype[tcount++] = gensub(mtyperegex, "\\1", "g", $2);
- }
- END {
- printf("enum\n{\n MTYPE_TMP = 1,\n");
- for (i = 0; i < tcount; i++) {
- if (mtype[i] != "" && mtype[i] != "MTYPE_TMP")
- printf (" %s,\n", mtype[i]);
- }
- printf (" MTYPE_MAX,\n};\n\n");
- for (i = 0; i < lcount; i++) {
- if (mlists[i] != "")
- printf (mlistformat "\n", mlists[i]);
- }
- printf (footer);
- }
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