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2005-04-16 Paul Jakma <paul@dishone.st>

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* memtypes.c: the comment about use of comments in the comments
	  headers was causing comment within comment warnings from compiler
	* memtypes.awk: Add extensive comments on the file format for
	  memtypes.c.
	  tighten the pattern for the MTYPE matching action (suggestion from
	  Andrew) and tighten which field we try the match on.
This commit is contained in:
paul 2005-04-16 15:51:05 +00:00
parent 03ecfb6789
commit dc830cbfac
3 changed files with 44 additions and 7 deletions
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9
lib/ChangeLog
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@ -1,3 +1,12 @@
2005-04-16 Paul Jakma <paul@dishone.st>
* memtypes.c: the comment about use of comments in the comments
headers was causing comment within comment warnings from compiler
* memtypes.awk: Add extensive comments on the file format for
memtypes.c.
tighten the pattern for the MTYPE matching action (suggestion from
Andrew) and tighten which field we try the match on.
2005-04-15 Paul Jakma <paul@dishone.st>
* memtypes.c: The new, unified location for memory type definitions.

36
lib/memtypes.awk
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@ -1,13 +1,37 @@
# $Id: memtypes.awk,v 1.1 2005/04/15 11:47:15 paul Exp $
# $Id: memtypes.awk,v 1.2 2005/04/16 15:51:05 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 [A-Z_0-9]. 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_[A-Z_0-9]+).*$";
mtyperegex = "^(MTYPE_[A-Z_0-9]+).*";
header = "/* Auto-generated from memtypes.c by " ARGV[0] ". */\n";
header = header "/* Do not edit! */\n";
header = header "\n#ifndef _QUAGGA_MEMTYPES_H\n";
@ -17,12 +41,16 @@ BEGIN {
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);
}
($1 != "/*") && ($1 != "*") && ($2 ~ /MTYPE_/) {
mtype[tcount++] = gensub(mtyperegex,"\\1",1, $0);
# 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",1, $2);
}
END {

6
lib/memtypes.c
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@ -3,10 +3,10 @@
* MTYPE_ and memory_list_.. information in order to autogenerate
* memtypes.h.
*
* The script is sensitive to the format (though not whitespace), so
* be careful. Comment lines /must/ start with either /* or *.
* The script is sensitive to the format (though not whitespace), see
* the top of memtypes.awk for more details.
*
* $Id: memtypes.c,v 1.1 2005/04/15 11:47:15 paul Exp $
* $Id: memtypes.c,v 1.2 2005/04/16 15:51:05 paul Exp $
*/
#include "zebra.h"