X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=token.c;h=8f60302d4e3e2334e3647c4d49b1e82d1c871014;hb=b00408fc909b04714fcbfbc79985c70b5bedeb66;hp=9464783d9e8832e1199b85b09a83953638dd0f9a;hpb=9e29e9c33f6511c4583e5b8ed83194d433e82c45;p=cparser diff --git a/token.c b/token.c index 9464783..8f60302 100644 --- a/token.c +++ b/token.c @@ -1,44 +1,98 @@ +/* + * This file is part of cparser. + * Copyright (C) 2007-2009 Matthias Braun + * + * 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 2 + * 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, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + */ #include #include "token_t.h" +#include "symbol_t.h" #include #include #include "symbol.h" +#include "lang_features.h" #include "adt/array.h" static symbol_t *token_symbols[T_LAST_TOKEN]; +static symbol_t *pp_token_symbols[TP_LAST_TOKEN]; -void init_tokens(void) +const source_position_t builtin_source_position = { "", 0, 0 }; + +static int last_id; + +static symbol_t *intern_register_token(token_type_t id, const char *string) { - symbol_t *symbol; + assert(0 <= id && id < T_LAST_TOKEN); + symbol_t *symbol = symbol_table_insert(string); + if (token_symbols[id] == NULL) + token_symbols[id] = symbol; + return symbol; +} - memset(token_symbols, 0, T_LAST_TOKEN * sizeof(token_symbols[0])); +static symbol_t *intern_register_pp_token(preprocessor_token_type_t id, const char *string) +{ + assert(0 <= id && id < TP_LAST_TOKEN); + symbol_t *symbol = symbol_table_insert(string); + if (pp_token_symbols[id] == NULL) + pp_token_symbols[id] = symbol; + return symbol; +} -#define T(x,str,val) \ - assert(T_##x >= 0 && T_##x < T_LAST_TOKEN); \ - symbol = symbol_table_insert(str); \ - symbol->ID = T_##x; \ - token_symbols[T_##x] = symbol; +static void register_token(unsigned mode, token_type_t id, const char *string) +{ + if (id > 255) { + assert(id >= last_id); + last_id = id; + } + if (c_mode & mode) { + symbol_t *symbol = intern_register_token(id, string); + symbol->ID = id; + } +} -#define TS(x,str,val) \ - assert(T_##x >= 0 && T_##x < T_LAST_TOKEN); \ - symbol = symbol_table_insert(str); \ - token_symbols[T_##x] = symbol; +static void register_pp_token(unsigned mode, token_type_t id, + const char *string) +{ + if (! (c_mode & mode)) + return; -#include "tokens.inc" + symbol_t *symbol = intern_register_pp_token(id, string); + symbol->pp_ID = id; +} +void init_tokens(void) +{ + memset(token_symbols, 0, T_LAST_TOKEN * sizeof(token_symbols[0])); + memset(pp_token_symbols, 0, TP_LAST_TOKEN * sizeof(pp_token_symbols[0])); + + last_id = -2; + +#define T(mode,x,str,val) register_token(mode, T_##x, str); +#define TS(x,str,val) intern_register_token(T_##x, str); +#include "tokens.inc" #undef TS #undef T -#define T(x,str,val) \ - assert(TP_##x >= 0 && TP_##x < TP_LAST_TOKEN); \ - symbol = symbol_table_insert(str); \ - symbol->pp_ID = TP_##x; - +#define T(mode,x,str,val) register_pp_token(mode, TP_##x, str); +#define TS(x,str,val) intern_register_pp_token(TP_##x, str); #include "tokens_preprocessor.inc" - +#undef TS #undef T } @@ -68,27 +122,106 @@ void print_token_type(FILE *f, token_type_t token_type) fputs(symbol->string, f); } else { if(token_type >= 0 && token_type < 256) { - fprintf(f, "'%c'", token_type); + fputc(token_type, f); return; } fputs("unknown token", f); } } +symbol_t *get_token_symbol(const token_t *token) +{ + return token_symbols[token->type]; +} + +static void print_stringrep(const string_t *string, FILE *f) +{ + for (size_t i = 0; i < string->size; ++i) { + fputc(string->begin[i], f); + } +} + void print_token(FILE *f, const token_t *token) { switch(token->type) { case T_IDENTIFIER: - fprintf(f, "symbol '%s'", token->v.symbol->string); + fprintf(f, "identifier '%s'", token->symbol->string); break; case T_INTEGER: - fprintf(f, "integer number %d", token->v.intvalue); + case T_INTEGER_OCTAL: + case T_INTEGER_HEXADECIMAL: + case T_FLOATINGPOINT: + case T_FLOATINGPOINT_HEXADECIMAL: + print_token_type(f, (token_type_t)token->type); + fputs(" '", f); + print_stringrep(&token->literal, f); + if (token->symbol != NULL) + fputs(token->symbol->string, f); + fputc('\'', f); break; + case T_WIDE_STRING_LITERAL: case T_STRING_LITERAL: - fprintf(f, "string '%s'", token->v.string); + print_token_type(f, (token_type_t)token->type); + fprintf(f, " \"%s\"", token->literal.begin); + break; + case T_CHARACTER_CONSTANT: + case T_WIDE_CHARACTER_CONSTANT: + print_token_type(f, (token_type_t)token->type); + fputs(" \'", f); + print_stringrep(&token->literal, f); + fputs("'", f); + break; + default: + fputc('\'', f); + print_token_type(f, (token_type_t)token->type); + fputc('\'', f); + break; + } +} + +void print_pp_token_type(FILE *f, int token_type) +{ + if (token_type == TP_EOF) { + fputs("end of file", f); + return; + } + if (token_type == TP_ERROR) { + fputs("error", f); + return; + } + + int token_symbols_len = TP_LAST_TOKEN; + if (token_type < 0 || token_type >= token_symbols_len) { + fputs("invalid token", f); + return; + } + + const symbol_t *symbol = pp_token_symbols[token_type]; + if (symbol != NULL) { + fputs(symbol->string, f); + } else { + if(token_type >= 0 && token_type < 256) { + fputc(token_type, f); + return; + } + fputs("unknown token", f); + } +} + +void print_pp_token(FILE *f, const token_t *token) +{ + switch((preprocessor_token_type_t) token->type) { + case TP_IDENTIFIER: + fprintf(f, "identifier '%s'", token->symbol->string); + break; + case TP_NUMBER: + fprintf(f, "number '%s'", token->literal.begin); + break; + case TP_STRING_LITERAL: + fprintf(f, "string \"%s\"", token->literal.begin); break; default: - print_token_type(f, token->type); + print_pp_token_type(f, (preprocessor_token_type_t) token->type); break; } }