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1b064355f7
We can easily extend command completion to handle also keywords for command options. Help for command options is not yet supported.
81 lines
2.3 KiB
Plaintext
81 lines
2.3 KiB
Plaintext
m4_divert(-1)m4_dnl
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#
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# BIRD -- Generator of Configuration Grammar
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#
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# (c) 1998--1999 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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# Diversions used:
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# 1 includes
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# 2 types etc.
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# 3 rules
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# 4 C code
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# Common aliases
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m4_define(DNL, `m4_dnl')
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# Define macros for defining sections
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m4_define(CF_ZONE, `m4_divert($1)/* $2 from m4___file__ */')
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m4_define(CF_HDR, `CF_ZONE(1, Headers)')
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m4_define(CF_DEFINES, `CF_ZONE(1, Defines)')
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m4_define(CF_DECLS, `CF_ZONE(2, Declarations)')
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m4_define(CF_GRAMMAR, `CF_ZONE(3, Grammar)')
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m4_define(CF_CODE, `CF_ZONE(4, C Code)')
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m4_define(CF_END, `m4_divert(-1)')
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# Simple iterator
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m4_define(CF_itera, `m4_ifelse($#, 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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m4_define(CF_append, `m4_define([[$1]], m4_ifdef([[$1]], m4_defn([[$1]])[[$3]])[[$2]])')
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# Keywords act as %token<s>
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m4_define(CF_keywd, `m4_ifdef([[CF_tok_$1]],,[[m4_define([[CF_tok_$1]],1)CF_append([[CF_kw_rule]],$1,[[ | ]])m4_define([[CF_toks]],CF_toks $1)]])')
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m4_define(CF_KEYWORDS, `m4_define([[CF_toks]],[[]])CF_iterate([[CF_keywd]], [[$@]])m4_ifelse(CF_toks,,,%token<s>[[]]CF_toks
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)DNL')
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m4_define(CF_METHODS, `m4_define([[CF_toks]],[[]])CF_iterate([[CF_keywd]], [[$@]])m4_ifelse(CF_toks,,,%token<s>[[]]CF_toks
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)DNL')
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m4_define(CF_keywd2, `m4_ifdef([[CF_tok_$1]],,[[m4_define([[CF_tok_$1]],1)m4_define([[CF_toks]],CF_toks $1)]])')
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m4_define(CF_KEYWORDS_EXCLUSIVE, `m4_define([[CF_toks]],[[]])CF_iterate([[CF_keywd2]], [[$@]])m4_ifelse(CF_toks,,,%token<s>[[]]CF_toks
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)DNL')
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# CLI commands
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m4_define(CF_CLI, `m4_define([[CF_cmd]], cmd_[[]]m4_translit($1, [[ ]], _))DNL
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m4_divert(2)CF_KEYWORDS(m4_translit($1, [[ ]], [[,]]))
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m4_divert(3)cli_cmd: CF_cmd
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CF_cmd: $1 $2 END')
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m4_define(CF_CLI_CMD, `')
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m4_define(CF_CLI_OPT, `')
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m4_define(CF_CLI_HELP, `')
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# ENUM declarations are ignored
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m4_define(CF_ENUM, `')
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m4_define(CF_ENUM_PX, `')
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# After all configuration templates end, we finally generate the grammar file.
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m4_m4wrap(`
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m4_divert(0)DNL
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%{
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m4_undivert(1)DNL
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%}
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m4_undivert(2)DNL
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%type <s> KEYWORD
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%%
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KEYWORD: CF_kw_rule;
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m4_undivert(3)DNL
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%%
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m4_undivert(4)DNL
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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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