conf/gen_keywords.m4

   1 m4_divert(-1)m4_dnl
   2 #
   3 #       BIRD -- Generator of Configuration Keyword List
   4 #
   5 #       (c) 1998--1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
   6 #
   7 #       Can be freely distributed and used under the terms of the GNU GPL.
   8 #
   9
  10 # Simple iterator
  11 m4_define(CF_itera, `m4_ifelse($#, 1, [[CF_iter($1)]], [[CF_iter($1)[[]]CF_itera(m4_shift($@))]])')
  12 m4_define(CF_iterate, `m4_define([[CF_iter]], m4_defn([[$1]]))CF_itera($2)')
  13
  14 # Keywords are translated to C initializers
  15 m4_define(CF_handle_kw, `m4_divert(0){ "m4_translit($1,[[A-Z]],[[a-z]])", $1 },
  16 m4_divert(-1)')
  17 m4_define(CF_keywd, `m4_ifdef([[CF_tok_$1]],,[[m4_define([[CF_tok_$1]],1)CF_handle_kw($1)]])')
  18 m4_define(CF_KEYWORDS, `m4_define([[CF_toks]],[[]])CF_iterate([[CF_keywd]], [[$@]])m4_ifelse(CF_toks,,,%token[[]]CF_toks
  19 )DNL')
  20
  21 # CLI commands generate keywords as well
  22 m4_define(CF_CLI, `CF_KEYWORDS(m4_translit($1, [[ ]], [[,]]))
  23 ')
  24
  25 # As we are processing C source, we must access all M4 primitives via
  26 # m4_* and also set different quoting convention: `[[' and ']]'
  27 m4_changequote([[,]])