8e177cf35b
This is a backport cherry-pick of commits 165156beeb2926472bbceca3c103aacc3f81a8cc cce974e8ea992d0e6d2f649eca7880b436d91d71 from the v3.0 branch as we need symbol hashes directly inside their scopes for more general usage than before.
53 lines
2.0 KiB
Plaintext
53 lines
2.0 KiB
Plaintext
m4_divert(-1)m4_dnl
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#
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# BIRD -- Generator of Configuration Keyword List
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#
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# (c) 1998--2000 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
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#
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# Can be freely distributed and used under the terms of the GNU GPL.
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#
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# Common aliases
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m4_define(DNL, `m4_dnl')
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# Diversions used:
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# 1 keywords
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# Simple iterator
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m4_define(CF_itera, `m4_ifelse($#, 1, [[CF_iter($1)]], [[CF_iter($1)[[]]CF_itera(m4_shift($@))]])')
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m4_define(CF_iterate, `m4_define([[CF_iter]], m4_defn([[$1]]))CF_itera($2)')
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# We include all the headers
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m4_define(CF_HDR, `m4_divert(0)')
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m4_define(CF_DECLS, `m4_divert(-1)')
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m4_define(CF_DEFINES, `m4_divert(-1)')
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# Keywords are translated to C initializers
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m4_define(CF_handle_kw, `m4_divert(1){ "m4_translit($1,[[A-Z]],[[a-z]])", $1, NULL },
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m4_divert(-1)')
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m4_define(CF_keywd, `m4_ifdef([[CF_tok_$1]],,[[m4_define([[CF_tok_$1]],1)CF_handle_kw($1)]])')
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m4_define(CF_KEYWORDS, `CF_iterate([[CF_keywd]], [[$@]])DNL')
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m4_define(CF_KEYWORDS_EXCLUSIVE, `CF_KEYWORDS($@)')
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# CLI commands generate keywords as well
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m4_define(CF_CLI, `CF_KEYWORDS(m4_translit($1, [[ ]], [[,]]))
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')
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# Enums are translated to C initializers: use CF_ENUM(typename, prefix, values)
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# For different prefix: CF_ENUM_PX(typename, external prefix, C prefix, values)
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m4_define(CF_enum, `m4_divert(1){ "CF_enum_prefix_ext[[]]$1", -((CF_enum_type<<16) | CF_enum_prefix_int[[]]$1), NULL },
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m4_divert(-1)')
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m4_define(CF_ENUM, `m4_define([[CF_enum_type]],$1)m4_define([[CF_enum_prefix_ext]],$2)m4_define([[CF_enum_prefix_int]],$2)CF_iterate([[CF_enum]], [[m4_shift(m4_shift($@))]])DNL')
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m4_define(CF_ENUM_PX, `m4_define([[CF_enum_type]],$1)m4_define([[CF_enum_prefix_ext]],$2)m4_define([[CF_enum_prefix_int]],$3)CF_iterate([[CF_enum]], [[m4_shift(m4_shift(m4_shift($@)))]])DNL')
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# After all configuration templates end, we generate the
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m4_m4wrap(`
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m4_divert(0)
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static struct keyword keyword_list[] = {
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m4_undivert(1){ NULL, -1, NULL } };
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')
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# As we are processing C source, we must access all M4 primitives via
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# m4_* and also set different quoting convention: `[[' and ']]'
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m4_changequote([[,]])
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