#include "symbol.h"
#include "lang_features.h"
#include "adt/array.h"
+#include "adt/util.h"
static symbol_t *token_symbols[T_LAST_TOKEN];
static symbol_t *pp_token_symbols[TP_LAST_TOKEN];
-const source_position_t builtin_source_position = { "<built-in>", 0 };
+const source_position_t builtin_source_position = { "<built-in>", 0, 0, true };
-static int last_id;
+static token_kind_t last_id;
-static symbol_t *intern_register_token(token_type_t id, const char *string)
+static symbol_t *intern_register_token(token_kind_t id, const char *string)
{
- assert(0 <= id && id < T_LAST_TOKEN);
+ assert(id < T_LAST_TOKEN);
symbol_t *symbol = symbol_table_insert(string);
if (token_symbols[id] == NULL)
token_symbols[id] = symbol;
return symbol;
}
-static symbol_t *intern_register_pp_token(token_type_t id, const char *string)
+static symbol_t *intern_register_pp_token(preprocessor_token_kind_t id, const char *string)
{
- assert(0 <= id && id < TP_LAST_TOKEN);
+ assert(id < TP_LAST_TOKEN);
symbol_t *symbol = symbol_table_insert(string);
if (pp_token_symbols[id] == NULL)
pp_token_symbols[id] = symbol;
return symbol;
}
-static void register_token(unsigned mode, token_type_t id, const char *string)
+static void register_token(unsigned mode, token_kind_t id, const char *string)
{
if (id > 255) {
assert(id >= last_id);
}
}
-static void register_pp_token(unsigned mode, token_type_t id,
+static void register_pp_token(unsigned mode, preprocessor_token_kind_t id,
const char *string)
{
if (! (c_mode & mode))
return;
- symbol_t *symbol = intern_register_token(id, string);
+ symbol_t *symbol = intern_register_pp_token(id, string);
symbol->pp_ID = id;
}
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"
{
}
-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];
+ const symbol_t *symbol = token_symbols[token_kind];
if(symbol != NULL) {
fputs(symbol->string, f);
} else {
- if(token_type >= 0 && token_type < 256) {
- fputc(token_type, f);
+ if (token_kind < 256) {
+ fputc(token_kind, 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) {
void print_token(FILE *f, const token_t *token)
{
- switch(token->type) {
+ switch(token->kind) {
case T_IDENTIFIER:
- fprintf(f, "identifier '%s'", token->symbol->string);
+ fprintf(f, "identifier '%s'", token->base.symbol->string);
break;
case T_INTEGER:
- case T_INTEGER_OCTAL:
- case T_INTEGER_HEXADECIMAL:
case T_FLOATINGPOINT:
- case T_FLOATINGPOINT_HEXADECIMAL:
- print_token_type(f, (token_type_t)token->type);
+ print_token_kind(f, (token_kind_t)token->kind);
fputs(" '", f);
- print_stringrep(&token->literal, f);
- if (token->symbol != NULL)
- fputs(token->symbol->string, f);
+ print_stringrep(&token->number.number, f);
+ if (token->number.suffix.size > 0)
+ print_stringrep(&token->number.suffix, f);
fputc('\'', f);
break;
case T_WIDE_STRING_LITERAL:
case T_STRING_LITERAL:
- print_token_type(f, (token_type_t)token->type);
- fprintf(f, " \"%s\"", token->literal.begin);
+ print_token_kind(f, (token_kind_t)token->kind);
+ fprintf(f, " \"%s\"", token->string.string.begin);
break;
case T_CHARACTER_CONSTANT:
case T_WIDE_CHARACTER_CONSTANT:
- print_token_type(f, (token_type_t)token->type);
+ print_token_kind(f, (token_kind_t)token->kind);
fputs(" \'", f);
- print_stringrep(&token->literal, f);
+ print_stringrep(&token->string.string, f);
fputs("'", f);
break;
+
default:
- fputc('\'', f);
- print_token_type(f, (token_type_t)token->type);
- fputc('\'', f);
+ 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;
}
}
-void print_pp_token_type(FILE *f, int token_type)
+void print_pp_token_kind(FILE *f, int token_kind)
{
- if (token_type == TP_EOF) {
+ if (token_kind == 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) {
+ if (token_kind < 0 || token_kind >= token_symbols_len) {
fputs("invalid token", f);
return;
}
- const symbol_t *symbol = pp_token_symbols[token_type];
+ const symbol_t *symbol = pp_token_symbols[token_kind];
if (symbol != NULL) {
fputs(symbol->string, f);
} else {
- if(token_type >= 0 && token_type < 256) {
- fputc(token_type, f);
+ if(token_kind >= 0 && token_kind < 256) {
+ fputc(token_kind, f);
return;
}
fputs("unknown token", f);
void print_pp_token(FILE *f, const token_t *token)
{
- switch((preprocessor_token_type_t) token->type) {
+ switch((preprocessor_token_kind_t) token->kind) {
case TP_IDENTIFIER:
- fprintf(f, "identifier '%s'", token->symbol->string);
+ fprintf(f, "identifier '%s'", token->base.symbol->string);
break;
case TP_NUMBER:
- fprintf(f, "number '%s'", token->literal.begin);
+ fprintf(f, "number '%s'", token->number.number.begin);
break;
case TP_STRING_LITERAL:
- fprintf(f, "string \"%s\"", token->literal.begin);
+ fprintf(f, "string \"%s\"", token->string.string.begin);
break;
default:
- print_pp_token_type(f, (preprocessor_token_type_t) token->type);
+ print_pp_token_kind(f, (preprocessor_token_kind_t) token->kind);
break;
}
}
+
+bool tokens_would_paste(preprocessor_token_kind_t token1,
+ preprocessor_token_kind_t token2)
+{
+ char c = token2 < 256 ? (char) token2 : pp_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 == TP_NUMBER;
+ case '#': return c == '#' || c == '%';
+ case TP_GREATERGREATER: return c == '=';
+ case TP_LESSLESS: return c == '=';
+ case '^': return c == '=';
+ case '!': return c == '=';
+ case TP_IDENTIFIER:
+ return token2 == TP_IDENTIFIER || token2 == TP_NUMBER ||
+ token2 == TP_CHARACTER_CONSTANT ||
+ token2 == TP_WIDE_CHARACTER_CONSTANT ||
+ token2 == TP_WIDE_STRING_LITERAL ||
+ token2 == TP_STRING_LITERAL; /* L */
+ case TP_NUMBER:
+ return token2 == TP_NUMBER || token2 == TP_IDENTIFIER ||
+ token2 == '.' || token2 == '+' || token2 == '-';
+ default:
+ return false;
+ }
+}
projects / cparser / blobdiff