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more lexer improvements

master
Allen Webster 2016-08-30 18:04:57 -04:00
parent c645b9a57b
commit c6b6203e53
1 changed files with 455 additions and 497 deletions
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52
4cpp_lexer.h
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@ -251,13 +251,6 @@ cpp_shift_token_starts(Cpp_Token_Stack *stack, int32_t from_token_i, int32_t shi
}
}
#if 0
enum Pos_Update_Rule{
PUR_none,
PUR_back_one,
};
#endif
FCPP_LINK Lex_PP_State
cpp_pp_directive_to_state(Cpp_Token_Type type){
Lex_PP_State result = LSPP_default;
@ -478,31 +471,10 @@ cpp_lex_nonalloc(Lex_Data *S_ptr,
S.completed = 1;
}
if (S.fsm.state >= LS_count) S.fsm.state -= LS_count;
//pos_update_rule = PUR_none;
#if 0
if (S.pp_state == LSPP_include){
if (c == 0) S.fsm.emit_token = 0;
switch (S.fsm.state){
case LSINC_default:break;
case LSINC_quotes:
case LSINC_pointy:
S.token.type = CPP_TOKEN_INCLUDE_FILE;
S.token.flags = 0;
break;
case LSINC_junk:
S.token.type = CPP_TOKEN_JUNK;
S.token.flags = 0;
break;
if (S.fsm.state >= LS_count){
S.fsm.state -= LS_count;
}
}
else{}
#endif
{
switch (S.fsm.state){
case LS_default:
switch (c){
@ -941,25 +913,9 @@ cpp_lex_nonalloc(Lex_Data *S_ptr,
break;
}
#if 0
switch (pos_update_rule){
case PUR_back_one:
--S.pos;
break;
default:
if (chunk[S.pos-1] == 0){
--S.pos;
}
break;
}
#else
if (chunk[S.pos-1] == 0){
--S.pos;
}
#endif
if ((S.token.flags & CPP_TFLAG_PP_DIRECTIVE) == 0){
switch (S.pp_state){
@ -991,11 +947,13 @@ cpp_lex_nonalloc(Lex_Data *S_ptr,
break;
case LSPP_junk:
if (S.token.type != CPP_TOKEN_COMMENT){
S.token.type = CPP_TOKEN_JUNK;
}
break;
}
}
}
if (S.fsm.emit_token){
S.token.start = S.token_start;