+/*
+ * This file is part of cparser.
+ * Copyright (C) 2007-2009 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>
#include "symbol.h"
+#include "lang_features.h"
#include "adt/array.h"
+#include "adt/error.h"
+#include "adt/util.h"
static symbol_t *token_symbols[T_LAST_TOKEN];
-void init_tokens(void)
+const source_position_t builtin_source_position = { "<built-in>", 0, 0, true };
+
+static token_kind_t last_id;
+
+static symbol_t *intern_register_token(token_kind_t id, const char *string)
{
- symbol_t *symbol;
+ assert(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 void register_token(unsigned mode, token_kind_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 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_pp_token(pp_token_kind_t const id, char const *const string)
+{
+ assert(id < TP_LAST_TOKEN);
+ symbol_t *const symbol = symbol_table_insert(string);
+ symbol->pp_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;
+void init_tokens(void)
+{
+ memset(token_symbols, 0, T_LAST_TOKEN * sizeof(token_symbols[0]));
+#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(token) register_pp_token(TP_##token, #token);
#include "tokens_preprocessor.inc"
-
#undef T
}
{
}
-void print_token_type(FILE *f, token_type_t token_type)
+void print_token_kind(FILE *f, token_kind_t token_kind)
{
- if(token_type == T_EOF) {
+ if(token_kind == T_EOF) {
fputs("end of file", f);
return;
}
- if(token_type == T_ERROR) {
- fputs("error", f);
- return;
- }
- int token_symbols_len = T_LAST_TOKEN;
- if(token_type < 0 || token_type >= token_symbols_len) {
+ if (token_kind >= lengthof(token_symbols)) {
fputs("invalid token", f);
return;
}
- const symbol_t *symbol = 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);
+ fputs(token_symbols[token_kind]->string, f);
+}
+
+char const *get_string_encoding_prefix(string_encoding_t const enc)
+{
+ switch (enc) {
+ case STRING_ENCODING_CHAR: return "";
+ case STRING_ENCODING_WIDE: return "L";
+ }
+ panic("invalid string encoding");
+}
+
+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) {
+ switch(token->kind) {
case T_IDENTIFIER:
- fprintf(f, "symbol '%s'", token->v.symbol->string);
- break;
- case T_INTEGER:
- fprintf(f, "integer number %d", token->v.intvalue);
+ case T_UNKNOWN_CHAR:
+ print_token_kind(f, (token_kind_t)token->kind);
+ fprintf(f, " '%s'", token->base.symbol->string);
break;
- case T_FLOATINGPOINT:
- fprintf(f, "floatingpointer number %f", token->v.floatvalue);
+
+ case T_NUMBER:
+ fprintf(f, "number '%s'", token->literal.string.begin);
break;
- case T_STRING_LITERAL:
- fprintf(f, "string '%s'", token->v.string);
+
+ char delim;
+ case T_STRING_LITERAL: delim = '"'; goto print_string;
+ case T_CHARACTER_CONSTANT: delim = '\''; goto print_string;
+print_string:
+ print_token_kind(f, (token_kind_t)token->kind);
+ fprintf(f, " %s%c", get_string_encoding_prefix(token->literal.string.encoding), delim);
+ print_stringrep(&token->literal.string, f);
+ fputc(delim, f);
break;
+
default:
- print_token_type(f, (token_type_t)token->type);
+ if (token->base.symbol) {
+ fprintf(f, "'%s'", token->base.symbol->string);
+ } else {
+ fputc('\'', f);
+ print_token_kind(f, (token_kind_t)token->kind);
+ fputc('\'', f);
+ }
break;
}
}
+
+bool tokens_would_paste(token_kind_t token1, token_kind_t token2)
+{
+ char const c = token_symbols[token2]->string[0];
+
+ switch (token1) {
+ case '>': return c == '>' || c == '=';
+ case '<': return c == '<' || c == '=' || c == '%' || c == ':';
+ case '+': return c == '+' || c == '=';
+ case '-': return c == '-' || c == '>';
+ case '/': return c == '/' || c == '=' || c == '*';
+ case '%': return c == ':' || c == '=' || c == '>';
+ case '&': return c == '&' || c == '=';
+ case '|': return c == '|' || c == '=';
+ case ':': return c == ':' || c == '>';
+ case '*': return c == '*' || c == '=';
+ case '.': return c == '.' || c == '%' || token2 == T_NUMBER;
+ case '#': return c == '#' || c == '%';
+ case T_GREATERGREATER: return c == '=';
+ case T_LESSLESS: return c == '=';
+ case '^': return c == '=';
+ case '!': return c == '=';
+
+ case T_IDENTIFIER:
+ return token2 == T_CHARACTER_CONSTANT ||
+ token2 == T_IDENTIFIER ||
+ token2 == T_NUMBER ||
+ token2 == T_STRING_LITERAL; /* L */
+
+ case T_NUMBER:
+ return token2 == T_IDENTIFIER || token2 == T_NUMBER ||
+ token2 == '.' || token2 == '+' || token2 == '-';
+
+ default:
+ return false;
+ }
+}
projects / cparser / blobdiff