always transmit const source_position_t * instead of source_position_t

[cparser] / token.c

diff --git a/token.c b/token.c
index c2d5345..bdb331a 100644 (file)
--- a/token.c
+++ b/token.c
@@ -1,6 +1,26 @@
+/*
+ * This file is part of cparser.
+ * Copyright (C) 2007-2008 Matthias Braun <matze@braunis.de>
+ *
+ * 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 <config.h>
 
 #include "token_t.h"
+#include "symbol_t.h"
 
 #include <assert.h>
 #include <stdio.h>
@@ -10,8 +30,9 @@
 #include "adt/array.h"
 
 static symbol_t *token_symbols[T_LAST_TOKEN];
+static symbol_t *pp_token_symbols[TP_LAST_TOKEN];
 
-source_position_t builtin_source_position = { "<built-in>", 0 };
+const source_position_t builtin_source_position = { "<built-in>", 0 };
 
 void init_tokens(void)
 {
@@ -19,6 +40,7 @@ void init_tokens(void)
        int       last_id = -2;
 
        memset(token_symbols, 0, T_LAST_TOKEN * sizeof(token_symbols[0]));
+       memset(pp_token_symbols, 0, TP_LAST_TOKEN * sizeof(pp_token_symbols[0]));
 
 #define T(mode,x,str,val)                                          \
        if (T_##x > 255) {                                             \
@@ -44,8 +66,14 @@ void init_tokens(void)
 
 #define T(mode,x,str,val)                                          \
        assert(TP_##x >= 0 && TP_##x < TP_LAST_TOKEN);                 \
-       symbol               = symbol_table_insert(str);               \
-       symbol->pp_ID        = TP_##x;
+       symbol                   = symbol_table_insert(str);           \
+       symbol->pp_ID            = TP_##x;                             \
+       pp_token_symbols[TP_##x] = symbol;
+
+#define TS(x,str,val)                                              \
+       assert(TP_##x >= 0 && TP_##x < T_LAST_TOKEN);                  \
+       symbol                   = symbol_table_insert(str);           \
+       pp_token_symbols[TP_##x] = symbol;
 
 #include "tokens_preprocessor.inc"
 
@@ -105,3 +133,50 @@ void print_token(FILE *f, const token_t *token)
                break;
        }
 }
+
+void print_pp_token_type(FILE *f, preprocessor_token_type_t 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) {
+               fprintf(f, "'%s'", symbol->string);
+       } else {
+               if(token_type >= 0 && token_type < 256) {
+                       fprintf(f, "'%c'", token_type);
+                       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, "symbol '%s'", token->v.symbol->string);
+               break;
+       case TP_NUMBER:
+               fprintf(f, "number %s", token->v.string.begin);
+               break;
+       case TP_STRING_LITERAL:
+               fprintf(f, "string '%s'", token->v.string.begin);
+               break;
+       default:
+               print_pp_token_type(f, (preprocessor_token_type_t) token->type);
+               break;
+       }
+}