????????????????????????????????????????????????????????????????????-*-?C?-*-

#?GLR?skeleton?for?Bison
#?Copyright?（C）?2002?2003?2004?2005?2006?2007?2008?Free?Software
#?Foundation?Inc.

#?This?program?is?free?software:?you?can?redistribute?it?and/or?modify
#?it?under?the?terms?of?the?GNU?General?Public?License?as?published?by
#?the?Free?Software?Foundation?either?version?3?of?the?License?or
#?（at?your?option）?any?later?version.
#
#?This?program?is?distributed?in?the?hope?that?it?will?be?useful
#?but?WITHOUT?ANY?WARRANTY;?without?even?the?implied?warranty?of
#?MERCHANTABILITY?or?FITNESS?FOR?A?PARTICULAR?PURPOSE.??See?the
#?GNU?General?Public?License?for?more?details.
#
#?You?should?have?received?a?copy?of?the?GNU?General?Public?License
#?along?with?this?program.??If?not?see?.


m4_include（b4_pkgdatadir/[c.m4]）

##?----------------?##
##?Default?values.??##
##?----------------?##

#?Stack?parameters.
m4_define_default（[b4_stack_depth_max]?[10000]）
m4_define_default（[b4_stack_depth_init]??[200]）



##?------------------------?##
##?Pure/impure?interfaces.??##
##?------------------------?##

b4_define_flag_if（[pure]）
#?If?glr.cc?is?including?this?file?and?thus?has?already?set?b4_pure_flag?don‘t
#?change?the?value?of?b4_pure_flag?and?don‘t?record?a?use?of?api.pure.
m4_ifndef（[b4_pure_flag]
[b4_percent_define_default（[[api.pure]]?[[false]]）
?m4_define（[b4_pure_flag]
???????????[b4_percent_define_flag_if（[[api.pure]]?[[1]]?[[0]]）]）]）

#?b4_user_formals
#?---------------
#?The?possible?parse-params?formal?arguments?preceded?by?a?comma.
#
#?This?is?not?shared?with?yacc.c?in?c.m4?because??GLR?relies?on?ISO?C
#?formal?argument?declarations.
m4_define（[b4_user_formals]
[m4_ifset（[b4_parse_param]?[?b4_c_ansi_formals（b4_parse_param）]）]）


#?b4_lex_param
#?------------
#?Accumule?in?b4_lex_param?all?the?yylex?arguments.
#?Yes?this?is?quite?ugly...
m4_define（[b4_lex_param]
m4_dquote（b4_pure_if（[[[[YYSTYPE?*]]?[[&yylval]]][]dnl
b4_locations_if（[?[[YYLTYPE?*]?[&yylloc]]]）]）dnl
m4_ifdef（[b4_lex_param]?[?]b4_lex_param）））


#?b4_yyerror_args
#?---------------
#?Optional?effective?arguments?passed?to?yyerror:?user?args?plus?yylloc?and
#?a?trailing?comma.
m4_define（[b4_yyerror_args]
[b4_pure_if（[b4_locations_if（[yylocp?]）]）dnl
m4_ifset（[b4_parse_param]?[b4_c_args（b4_parse_param）?]）]）


#?b4_lyyerror_args
#?----------------
#?Same?as?above?but?on?the?lookahead?hence?&yylloc?instead?of?yylocp.
m4_define（[b4_lyyerror_args]
[b4_pure_if（[b4_locations_if（[&yylloc?]）]）dnl
m4_ifset（[b4_parse_param]?[b4_c_args（b4_parse_param）?]）]）


#?b4_pure_args
#?------------
#?Same?as?b4_yyerror_args?but?with?a?leading?comma.
m4_define（[b4_pure_args]
[b4_pure_if（[b4_locations_if（[?yylocp]）]）[]b4_user_args]）


#?b4_lpure_args
#?-------------
#?Same?as?above?but?on?the?lookahead?hence?&yylloc?instead?of?yylocp.
m4_define（[b4_lpure_args]
[b4_pure_if（[b4_locations_if（[?&yylloc]）]）[]b4_user_args]）


#?b4_pure_formals