ppcondition *conditions;
ppmacro **macros;
- bool output_string;
- char *output;
+ char *output_string;
} ftepp_t;
#define ftepp_tokval(f) ((f)->lex->tok.value)
mem_d(self);
}
-static ftepp_t* ftepp_init()
+static ftepp_t* ftepp_new()
{
ftepp_t *ftepp;
ppmacro_delete(self->macros[i]);
vec_free(self->macros);
vec_free(self->conditions);
- lex_close(self->lex);
+ if (self->lex)
+ lex_close(self->lex);
mem_d(self);
}
{
size_t len;
char *data;
- if (!ftepp->output_string) {
- printf("%s", str);
- return;
- }
len = strlen(str);
- data = vec_add(ftepp->output, len);
+ data = vec_add(ftepp->output_string, len);
memcpy(data, str, len);
}
}
return false;
}
+static void ftepp_stringify_token(ftepp_t *ftepp, pptoken *token)
+{
+ char chs[2];
+ const char *ch;
+ chs[1] = 0;
+ switch (token->token) {
+ case TOKEN_STRINGCONST:
+ ch = token->value;
+ while (*ch) {
+ /* in preprocessor mode strings already are string,
+ * so we don't get actual newline bytes here.
+ * Still need to escape backslashes and quotes.
+ */
+ switch (*ch) {
+ case '\\': ftepp_out(ftepp, "\\\\", false); break;
+ case '"': ftepp_out(ftepp, "\\\"", false); break;
+ default:
+ chs[0] = *ch;
+ ftepp_out(ftepp, chs, false);
+ break;
+ }
+ ++ch;
+ }
+ break;
+ case TOKEN_WHITE:
+ ftepp_out(ftepp, " ", false);
+ break;
+ case TOKEN_EOL:
+ ftepp_out(ftepp, "\\n", false);
+ break;
+ default:
+ ftepp_out(ftepp, token->value, false);
+ break;
+ }
+}
+
+static void ftepp_stringify(ftepp_t *ftepp, macroparam *param)
+{
+ size_t i;
+ ftepp_out(ftepp, "\"", false);
+ for (i = 0; i < vec_size(param->tokens); ++i)
+ ftepp_stringify_token(ftepp, param->tokens[i]);
+ ftepp_out(ftepp, "\"", false);
+}
+
+static void ftepp_recursion_header(ftepp_t *ftepp)
+{
+ ftepp_out(ftepp, "\n#pragma push(line)\n", false);
+}
+
+static void ftepp_recursion_footer(ftepp_t *ftepp)
+{
+ ftepp_out(ftepp, "\n#pragma pop(line)\n", false);
+}
+
static bool ftepp_preprocess(ftepp_t *ftepp);
static bool ftepp_macro_expand(ftepp_t *ftepp, ppmacro *macro, macroparam *params)
{
- char *old_string = ftepp->output;
- bool old_string_flag = ftepp->output_string;
+ char *old_string = ftepp->output_string;
lex_file *old_lexer = ftepp->lex;
bool retval = true;
size_t o, pi, pv;
lex_file *inlex;
+ int nextok;
+
/* really ... */
if (!vec_size(macro->output))
return true;
- ftepp->output = NULL;
- ftepp->output_string = true;
+ ftepp->output_string = NULL;
for (o = 0; o < vec_size(macro->output); ++o) {
pptoken *out = macro->output[o];
switch (out->token) {
}
break;
case '#':
- if (o + 1 < vec_size(macro->output) && macro->output[o+1]->token == '#') {
- /* raw concatenation */
- ++o;
- break;
+ if (o + 1 < vec_size(macro->output)) {
+ nextok = macro->output[o+1]->token;
+ if (nextok == '#') {
+ /* raw concatenation */
+ ++o;
+ break;
+ }
+ if ( (nextok == TOKEN_IDENT ||
+ nextok == TOKEN_KEYWORD ||
+ nextok == TOKEN_TYPENAME) &&
+ macro_params_find(macro, macro->output[o+1]->value, &pi))
+ {
+ ++o;
+ ftepp_stringify(ftepp, ¶ms[pi]);
+ break;
+ }
}
ftepp_out(ftepp, "#", false);
break;
break;
}
}
- vec_push(ftepp->output, 0);
+ vec_push(ftepp->output_string, 0);
/* Now run the preprocessor recursively on this string buffer */
/*
- printf("__________\n%s\n=========\n", ftepp->output);
+ printf("__________\n%s\n=========\n", ftepp->output_string);
*/
- inlex = lex_open_string(ftepp->output, vec_size(ftepp->output)-1, ftepp->lex->name);
+ inlex = lex_open_string(ftepp->output_string, vec_size(ftepp->output_string)-1, ftepp->lex->name);
if (!inlex) {
ftepp_error(ftepp, "internal error: failed to instantiate lexer");
retval = false;
goto cleanup;
}
- ftepp->output = old_string;
- ftepp->output_string = old_string_flag;
+ ftepp->output_string = old_string;
ftepp->lex = inlex;
+ ftepp_recursion_header(ftepp);
if (!ftepp_preprocess(ftepp)) {
+ lex_close(ftepp->lex);
retval = false;
goto cleanup;
}
+ ftepp_recursion_footer(ftepp);
+ old_string = ftepp->output_string;
cleanup:
ftepp->lex = old_lexer;
- ftepp->output = old_string;
- ftepp->output_string = old_string_flag;
+ ftepp->output_string = old_string;
return retval;
}
return newline;
}
+/* Like in parser.c - files keep the previous state so we have one global
+ * preprocessor. Except here we will want to warn about dangling #ifs.
+ */
+static ftepp_t *ftepp;
+
+static bool ftepp_preprocess_done()
+{
+ bool retval = true;
+ lex_close(ftepp->lex);
+ ftepp->lex = NULL;
+ if (vec_size(ftepp->conditions)) {
+ if (ftepp_warn(ftepp, WARN_MULTIFILE_IF, "#if spanning multiple files, is this intended?"))
+ retval = false;
+ }
+ return retval;
+}
+
bool ftepp_preprocess_file(const char *filename)
{
- ftepp_t *ftepp = ftepp_init();
ftepp->lex = lex_open(filename);
if (!ftepp->lex) {
con_out("failed to open file \"%s\"\n", filename);
ftepp_delete(ftepp);
return false;
}
- ftepp_delete(ftepp);
- return true;
+ return ftepp_preprocess_done();
}
bool ftepp_preprocess_string(const char *name, const char *str)
{
- ftepp_t *ftepp = ftepp_init();
+ ftepp_t *ftepp = ftepp_new();
ftepp->lex = lex_open_string(str, strlen(str), name);
if (!ftepp->lex) {
con_out("failed to create lexer for string \"%s\"\n", name);
ftepp_delete(ftepp);
return false;
}
+ return ftepp_preprocess_done();
+}
+
+bool ftepp_init()
+{
+ ftepp = ftepp_new();
+ return !!ftepp;
+}
+
+const char *ftepp_get()
+{
+ return ftepp->output_string;
+}
+
+void ftepp_flush()
+{
+ vec_free(ftepp->output_string);
+}
+
+void ftepp_finish()
+{
+ if (!ftepp)
+ return;
ftepp_delete(ftepp);
- return true;
+ ftepp = NULL;
}
projects / xonotic / gmqcc.git / blobdiff