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Annotation of embedaddon/bird2/conf/gen_keywords.m4, revision 1.1

1.1     ! misho       1: m4_divert(-1)m4_dnl
        !             2: #
        !             3: #      BIRD -- Generator of Configuration Keyword List
        !             4: #
        !             5: #      (c) 1998--2000 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: # Common aliases
        !            11: m4_define(DNL, `m4_dnl')
        !            12: 
        !            13: # Diversions used:
        !            14: #      1       keywords
        !            15: 
        !            16: # Simple iterator
        !            17: m4_define(CF_itera, `m4_ifelse($#, 1, [[CF_iter($1)]], [[CF_iter($1)[[]]CF_itera(m4_shift($@))]])')
        !            18: m4_define(CF_iterate, `m4_define([[CF_iter]], m4_defn([[$1]]))CF_itera($2)')
        !            19: 
        !            20: # We include all the headers
        !            21: m4_define(CF_HDR, `m4_divert(0)')
        !            22: m4_define(CF_DECLS, `m4_divert(-1)')
        !            23: m4_define(CF_DEFINES, `m4_divert(-1)')
        !            24: 
        !            25: # Keywords are translated to C initializers
        !            26: m4_define(CF_handle_kw, `m4_divert(1){ "m4_translit($1,[[A-Z]],[[a-z]])", $1, NULL },
        !            27: m4_divert(-1)')
        !            28: m4_define(CF_keywd, `m4_ifdef([[CF_tok_$1]],,[[m4_define([[CF_tok_$1]],1)CF_handle_kw($1)]])')
        !            29: m4_define(CF_KEYWORDS, `m4_define([[CF_toks]],[[]])CF_iterate([[CF_keywd]], [[$@]])m4_ifelse(CF_toks,,,%token[[]]CF_toks
        !            30: )DNL')
        !            31: 
        !            32: # CLI commands generate keywords as well
        !            33: m4_define(CF_CLI, `CF_KEYWORDS(m4_translit($1, [[ ]], [[,]]))
        !            34: ')
        !            35: 
        !            36: # Enums are translated to C initializers: use CF_ENUM(typename, prefix, values)
        !            37: m4_define(CF_enum, `m4_divert(1){ "CF_enum_prefix[[]]$1", -((CF_enum_type<<16) | CF_enum_prefix[[]]$1), NULL },
        !            38: m4_divert(-1)')
        !            39: m4_define(CF_ENUM, `m4_define([[CF_enum_type]],$1)m4_define([[CF_enum_prefix]],$2)CF_iterate([[CF_enum]], [[m4_shift(m4_shift($@))]])DNL')
        !            40: 
        !            41: # After all configuration templates end, we generate the 
        !            42: m4_m4wrap(`
        !            43: m4_divert(0)
        !            44: static struct keyword keyword_list[] = {
        !            45: m4_undivert(1){ NULL, -1, NULL } };
        !            46: ')
        !            47: 
        !            48: # As we are processing C source, we must access all M4 primitives via
        !            49: # m4_* and also set different quoting convention: `[[' and ']]'
        !            50: m4_changequote([[,]])