From 882c588a4060739a4820941cd1c6014bd10ab0db Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Fri, 27 Nov 1998 19:33:26 +0000
Subject: This script takes configuration fragments and extracts keyword list
 from them.

---
 conf/gen_keywords.m4 | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 conf/gen_keywords.m4

(limited to 'conf')

diff --git a/conf/gen_keywords.m4 b/conf/gen_keywords.m4
new file mode 100644
index 00000000..8bbe4902
--- /dev/null
+++ b/conf/gen_keywords.m4
@@ -0,0 +1,23 @@
+m4_divert(-1)m4_dnl
+#
+#	BIRD -- Generator of Configuration Keyword List
+#
+#	(c) 1998 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
+#
+#	Can be freely distributed and used under the terms of the GNU GPL.
+#
+
+# Simple iterator
+m4_define(CF_itera, `m4_ifelse($#, 1, [[CF_iter($1)]], [[CF_iter($1)[[]]CF_itera(m4_shift($@))]])')
+m4_define(CF_iterate, `m4_define([[CF_iter]], m4_defn([[$1]]))CF_itera($2)')
+
+# Keywords are translated to C initializers
+m4_define(CF_handle_kw, `m4_divert(0){ "m4_translit($1,[[A-Z]],[[a-z]])", $1 },
+m4_divert(-1)')
+m4_define(CF_keywd, `m4_ifdef([[CF_tok_$1]],,[[m4_define([[CF_tok_$1]],1)CF_handle_kw($1)]])')
+m4_define(CF_KEYWORDS, `m4_define([[CF_toks]],[[]])CF_iterate([[CF_keywd]], [[$@]])m4_ifelse(CF_toks,,,%token[[]]CF_toks
+)DNL')
+
+# As we are processing C source, we must access all M4 primitives via
+# m4_* and also set different quoting convention: `[[' and ']]'
+m4_changequote([[,]])
-- 
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