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31 #define HT_MACROS 1024
42 /* a copy from the lexer */
56 /* yes we need an extra flag since `#define FOO x` is not the same as `#define FOO() x` */
63 typedef struct ftepp_s {
69 ppcondition *conditions;
71 ht macros; /* hashtable<string, ppmacro*> */
78 uint32_t predef_countval;
79 uint32_t predef_randval;
83 static char *ftepp_predef_date(ftepp_t *context) {
84 const struct tm *itime = NULL;
85 char *value = (char*)mem_a(82);
91 itime = util_localtime(&rtime);
92 strftime(value, 82, "\"%b %d %Y\"", itime);
98 static char *ftepp_predef_time(ftepp_t *context) {
99 const struct tm *itime = NULL;
100 char *value = (char*)mem_a(82);
106 itime = util_localtime(&rtime);
107 strftime(value, 82, "\"%X\"", itime);
113 static char *ftepp_predef_line(ftepp_t *context) {
116 util_asprintf(&value, "%d", (int)context->lex->line);
120 static char *ftepp_predef_file(ftepp_t *context) {
121 size_t length = strlen(context->lex->name) + 3; /* two quotes and a terminator */
122 char *value = (char*)mem_a(length);
124 util_snprintf(value, length, "\"%s\"", context->lex->name);
127 /* __COUNTER_LAST__ */
128 static char *ftepp_predef_counterlast(ftepp_t *context) {
130 util_asprintf(&value, "%u", context->predef_countval);
134 static char *ftepp_predef_counter(ftepp_t *context) {
137 context->predef_countval ++;
138 util_asprintf(&value, "%u", context->predef_countval);
143 static char *ftepp_predef_random(ftepp_t *context) {
146 context->predef_randval = (util_rand() % 0xFF) + 1;
147 util_asprintf(&value, "%u", context->predef_randval);
150 /* __RANDOM_LAST__ */
151 static char *ftepp_predef_randomlast(ftepp_t *context) {
154 util_asprintf(&value, "%u", context->predef_randval);
158 static char *ftepp_predef_timestamp(ftepp_t *context) {
164 if (stat(context->lex->name, &finfo))
165 return util_strdup("\"<failed to determine timestamp>\"");
167 find = util_ctime(&finfo.st_mtime);
168 value = (char*)mem_a(strlen(find) + 1);
169 memcpy(&value[1], find, (size = strlen(find)) - 1);
179 char *(*func)(ftepp_t *);
182 static const ftepp_predef_t ftepp_predefs[] = {
183 { "__LINE__", &ftepp_predef_line },
184 { "__FILE__", &ftepp_predef_file },
185 { "__COUNTER__", &ftepp_predef_counter },
186 { "__COUNTER_LAST__", &ftepp_predef_counterlast },
187 { "__RANDOM__", &ftepp_predef_random },
188 { "__RANDOM_LAST__", &ftepp_predef_randomlast },
189 { "__DATE__", &ftepp_predef_date },
190 { "__TIME__", &ftepp_predef_time },
191 { "__TIME_STAMP__", &ftepp_predef_timestamp }
194 static GMQCC_INLINE size_t ftepp_predef_index(const char *name) {
195 /* no hashtable here, we simply check for one to exist the naive way */
197 for(i = 1; i < GMQCC_ARRAY_COUNT(ftepp_predefs) + 1; i++)
198 if (!strcmp(ftepp_predefs[i-1].name, name))
203 bool ftepp_predef_exists(const char *name);
204 bool ftepp_predef_exists(const char *name) {
205 return ftepp_predef_index(name) != 0;
208 /* singleton because we're allowed */
209 static GMQCC_INLINE char *(*ftepp_predef(const char *name))(ftepp_t *context) {
210 size_t i = ftepp_predef_index(name);
211 return (i != 0) ? ftepp_predefs[i-1].func : NULL;
214 #define ftepp_tokval(f) ((f)->lex->tok.value)
215 #define ftepp_ctx(f) ((f)->lex->tok.ctx)
217 static void ftepp_errorat(ftepp_t *ftepp, lex_ctx_t ctx, const char *fmt, ...)
224 con_cvprintmsg(ctx, LVL_ERROR, "error", fmt, ap);
228 static void ftepp_error(ftepp_t *ftepp, const char *fmt, ...)
235 con_cvprintmsg(ftepp->lex->tok.ctx, LVL_ERROR, "error", fmt, ap);
239 static bool GMQCC_WARN ftepp_warn(ftepp_t *ftepp, int warntype, const char *fmt, ...)
245 r = vcompile_warning(ftepp->lex->tok.ctx, warntype, fmt, ap);
250 static pptoken *pptoken_make(ftepp_t *ftepp)
252 pptoken *token = (pptoken*)mem_a(sizeof(pptoken));
253 token->token = ftepp->token;
254 token->value = util_strdup(ftepp_tokval(ftepp));
255 memcpy(&token->constval, &ftepp->lex->tok.constval, sizeof(token->constval));
259 static GMQCC_INLINE void pptoken_delete(pptoken *self)
265 static ppmacro *ppmacro_new(lex_ctx_t ctx, const char *name)
267 ppmacro *macro = (ppmacro*)mem_a(sizeof(ppmacro));
270 memset(macro, 0, sizeof(*macro));
271 macro->name = util_strdup(name);
275 static void ppmacro_delete(ppmacro *self)
278 for (i = 0; i < vec_size(self->params); ++i)
279 mem_d(self->params[i]);
280 vec_free(self->params);
281 for (i = 0; i < vec_size(self->output); ++i)
282 pptoken_delete(self->output[i]);
283 vec_free(self->output);
288 static ftepp_t* ftepp_new(void)
292 ftepp = (ftepp_t*)mem_a(sizeof(*ftepp));
293 memset(ftepp, 0, sizeof(*ftepp));
295 ftepp->macros = util_htnew(HT_MACROS);
296 ftepp->output_on = true;
297 ftepp->predef_countval = 0;
298 ftepp->predef_randval = 0;
303 static GMQCC_INLINE void ftepp_flush_do(ftepp_t *self)
305 vec_free(self->output_string);
308 static void ftepp_delete(ftepp_t *self)
310 ftepp_flush_do(self);
312 mem_d(self->itemname);
313 if (self->includename)
314 vec_free(self->includename);
316 util_htrem(self->macros, (void (*)(void*))&ppmacro_delete);
318 vec_free(self->conditions);
320 lex_close(self->lex);
324 static void ftepp_out(ftepp_t *ftepp, const char *str, bool ignore_cond)
326 if (ignore_cond || ftepp->output_on)
331 data = vec_add(ftepp->output_string, len);
332 memcpy(data, str, len);
336 static GMQCC_INLINE void ftepp_update_output_condition(ftepp_t *ftepp)
339 ftepp->output_on = true;
340 for (i = 0; i < vec_size(ftepp->conditions); ++i)
341 ftepp->output_on = ftepp->output_on && ftepp->conditions[i].on;
344 static GMQCC_INLINE ppmacro* ftepp_macro_find(ftepp_t *ftepp, const char *name)
346 return (ppmacro*)util_htget(ftepp->macros, name);
349 static GMQCC_INLINE void ftepp_macro_delete(ftepp_t *ftepp, const char *name)
351 util_htrm(ftepp->macros, name, (void (*)(void*))&ppmacro_delete);
354 static GMQCC_INLINE int ftepp_next(ftepp_t *ftepp)
356 return (ftepp->token = lex_do(ftepp->lex));
359 /* Important: this does not skip newlines! */
360 static bool ftepp_skipspace(ftepp_t *ftepp)
362 if (ftepp->token != TOKEN_WHITE)
364 while (ftepp_next(ftepp) == TOKEN_WHITE) {}
365 if (ftepp->token >= TOKEN_EOF) {
366 ftepp_error(ftepp, "unexpected end of preprocessor directive");
372 /* this one skips EOLs as well */
373 static bool ftepp_skipallwhite(ftepp_t *ftepp)
375 if (ftepp->token != TOKEN_WHITE && ftepp->token != TOKEN_EOL)
379 } while (ftepp->token == TOKEN_WHITE || ftepp->token == TOKEN_EOL);
380 if (ftepp->token >= TOKEN_EOF) {
381 ftepp_error(ftepp, "unexpected end of preprocessor directive");
388 * The huge macro parsing code...
390 static bool ftepp_define_params(ftepp_t *ftepp, ppmacro *macro)
394 if (!ftepp_skipspace(ftepp))
396 if (ftepp->token == ')')
398 switch (ftepp->token) {
402 vec_push(macro->params, util_strdup(ftepp_tokval(ftepp)));
405 macro->variadic = true;
408 ftepp_error(ftepp, "unexpected token in parameter list");
412 if (!ftepp_skipspace(ftepp))
414 if (macro->variadic && ftepp->token != ')') {
415 ftepp_error(ftepp, "cannot have parameters after the variadic parameters");
418 } while (ftepp->token == ',');
420 if (ftepp->token != ')') {
421 ftepp_error(ftepp, "expected closing paren after macro parameter list");
425 /* skipspace happens in ftepp_define */
429 static bool ftepp_define_body(ftepp_t *ftepp, ppmacro *macro)
432 while (ftepp->token != TOKEN_EOL && ftepp->token < TOKEN_EOF) {
433 bool subscript = false;
435 if (macro->variadic && !strcmp(ftepp_tokval(ftepp), "__VA_ARGS__")) {
436 subscript = !!(ftepp_next(ftepp) == '#');
438 if (subscript && ftepp_next(ftepp) != '#') {
439 ftepp_error(ftepp, "expected `##` in __VA_ARGS__ for subscripting");
441 } else if (subscript) {
442 if (ftepp_next(ftepp) == '[') {
443 if (ftepp_next(ftepp) != TOKEN_INTCONST) {
444 ftepp_error(ftepp, "expected index for __VA_ARGS__ subscript");
448 index = (int)strtol(ftepp_tokval(ftepp), NULL, 10);
450 if (ftepp_next(ftepp) != ']') {
451 ftepp_error(ftepp, "expected `]` in __VA_ARGS__ subscript");
456 * mark it as an array to be handled later as such and not
457 * as traditional __VA_ARGS__
459 ftepp->token = TOKEN_VA_ARGS_ARRAY;
460 ptok = pptoken_make(ftepp);
461 ptok->constval.i = index;
462 vec_push(macro->output, ptok);
465 ftepp_error(ftepp, "expected `[` for subscripting of __VA_ARGS__");
469 int old = ftepp->token;
470 ftepp->token = TOKEN_VA_ARGS;
471 ptok = pptoken_make(ftepp);
472 vec_push(macro->output, ptok);
476 else if (macro->variadic && !strcmp(ftepp_tokval(ftepp), "__VA_COUNT__")) {
477 ftepp->token = TOKEN_VA_COUNT;
478 ptok = pptoken_make(ftepp);
479 vec_push(macro->output, ptok);
482 ptok = pptoken_make(ftepp);
483 vec_push(macro->output, ptok);
487 /* recursive expansion can cause EOFs here */
488 if (ftepp->token != TOKEN_EOL && ftepp->token != TOKEN_EOF) {
489 ftepp_error(ftepp, "unexpected junk after macro or unexpected end of file");
495 static const char *ftepp_math_constants[][2] = {
496 { "M_E", "2.7182818284590452354" }, /* e */
497 { "M_LOG2E", "1.4426950408889634074" }, /* log_2 e */
498 { "M_LOG10E", "0.43429448190325182765" }, /* log_10 e */
499 { "M_LN2", "0.69314718055994530942" }, /* log_e 2 */
500 { "M_LN10", "2.30258509299404568402" }, /* log_e 10 */
501 { "M_PI", "3.14159265358979323846" }, /* pi */
502 { "M_PI_2", "1.57079632679489661923" }, /* pi/2 */
503 { "M_PI_4", "0.78539816339744830962" }, /* pi/4 */
504 { "M_1_PI", "0.31830988618379067154" }, /* 1/pi */
505 { "M_2_PI", "0.63661977236758134308" }, /* 2/pi */
506 { "M_2_SQRTPI", "1.12837916709551257390" }, /* 2/sqrt(pi) */
507 { "M_SQRT2", "1.41421356237309504880" }, /* sqrt(2) */
508 { "M_SQRT1_2", "0.70710678118654752440" }, /* 1/sqrt(2) */
509 { "M_TAU", "6.28318530717958647692" } /* pi*2 */
512 static bool ftepp_define(ftepp_t *ftepp)
514 ppmacro *macro = NULL;
515 size_t l = ftepp_ctx(ftepp).line;
517 bool mathconstant = false;
519 (void)ftepp_next(ftepp);
520 if (!ftepp_skipspace(ftepp))
523 switch (ftepp->token) {
527 if (OPTS_FLAG(FTEPP_MATHDEFS)) {
528 for (i = 0; i < GMQCC_ARRAY_COUNT(ftepp_math_constants); i++) {
529 if (!strcmp(ftepp_math_constants[i][0], ftepp_tokval(ftepp))) {
536 macro = ftepp_macro_find(ftepp, ftepp_tokval(ftepp));
538 if (OPTS_FLAG(FTEPP_MATHDEFS)) {
539 /* user defined ones take precedence */
540 if (macro && mathconstant) {
541 ftepp_macro_delete(ftepp, ftepp_tokval(ftepp));
546 if (macro && ftepp->output_on) {
547 if (ftepp_warn(ftepp, WARN_CPP, "redefining `%s`", ftepp_tokval(ftepp)))
549 ftepp_macro_delete(ftepp, ftepp_tokval(ftepp));
551 macro = ppmacro_new(ftepp_ctx(ftepp), ftepp_tokval(ftepp));
554 ftepp_error(ftepp, "expected macro name");
558 (void)ftepp_next(ftepp);
560 if (ftepp->token == '(') {
561 macro->has_params = true;
562 if (!ftepp_define_params(ftepp, macro)) {
563 ppmacro_delete(macro);
568 if (!ftepp_skipspace(ftepp)) {
569 ppmacro_delete(macro);
573 if (!ftepp_define_body(ftepp, macro)) {
574 ppmacro_delete(macro);
578 if (ftepp->output_on)
579 util_htset(ftepp->macros, macro->name, (void*)macro);
581 ppmacro_delete(macro);
584 for (; l < ftepp_ctx(ftepp).line; ++l)
585 ftepp_out(ftepp, "\n", true);
590 * When a macro is used we have to handle parameters as well
591 * as special-concatenation via ## or stringification via #
593 * Note: parenthesis can nest, so FOO((a),b) is valid, but only
594 * this kind of parens. Curly braces or [] don't count towards the
601 static void macroparam_clean(macroparam *self)
604 for (i = 0; i < vec_size(self->tokens); ++i)
605 pptoken_delete(self->tokens[i]);
606 vec_free(self->tokens);
609 /* need to leave the last token up */
610 static bool ftepp_macro_call_params(ftepp_t *ftepp, macroparam **out_params)
612 macroparam *params = NULL;
618 if (!ftepp_skipallwhite(ftepp))
620 while (ftepp->token != ')') {
622 if (!ftepp_skipallwhite(ftepp))
624 while (parens || ftepp->token != ',') {
625 if (ftepp->token == '(')
627 else if (ftepp->token == ')') {
632 ptok = pptoken_make(ftepp);
633 vec_push(mp.tokens, ptok);
634 if (ftepp_next(ftepp) >= TOKEN_EOF) {
635 ftepp_error(ftepp, "unexpected end of file in macro call");
639 vec_push(params, mp);
641 if (ftepp->token == ')')
643 if (ftepp->token != ',') {
644 ftepp_error(ftepp, "expected closing paren or comma in macro call");
647 if (ftepp_next(ftepp) >= TOKEN_EOF) {
648 ftepp_error(ftepp, "unexpected end of file in macro call");
652 *out_params = params;
657 macroparam_clean(&mp);
658 for (i = 0; i < vec_size(params); ++i)
659 macroparam_clean(¶ms[i]);
664 static bool macro_params_find(ppmacro *macro, const char *name, size_t *idx)
667 for (i = 0; i < vec_size(macro->params); ++i) {
668 if (!strcmp(macro->params[i], name)) {
676 static void ftepp_stringify_token(ftepp_t *ftepp, pptoken *token)
681 switch (token->token) {
682 case TOKEN_STRINGCONST:
685 /* in preprocessor mode strings already are string,
686 * so we don't get actual newline bytes here.
687 * Still need to escape backslashes and quotes.
690 case '\\': ftepp_out(ftepp, "\\\\", false); break;
691 case '"': ftepp_out(ftepp, "\\\"", false); break;
694 ftepp_out(ftepp, chs, false);
701 ftepp_out(ftepp, " ", false);
704 ftepp_out(ftepp, "\\n", false);
707 ftepp_out(ftepp, token->value, false);
712 static void ftepp_stringify(ftepp_t *ftepp, macroparam *param)
715 ftepp_out(ftepp, "\"", false);
716 for (i = 0; i < vec_size(param->tokens); ++i)
717 ftepp_stringify_token(ftepp, param->tokens[i]);
718 ftepp_out(ftepp, "\"", false);
721 static void ftepp_recursion_header(ftepp_t *ftepp)
723 ftepp_out(ftepp, "\n#pragma push(line)\n", false);
726 static void ftepp_recursion_footer(ftepp_t *ftepp)
728 ftepp_out(ftepp, "\n#pragma pop(line)\n", false);
731 static bool ftepp_macro_expand(ftepp_t *ftepp, ppmacro *macro, macroparam *params, bool resetline);
732 static void ftepp_param_out(ftepp_t *ftepp, macroparam *param)
736 for (i = 0; i < vec_size(param->tokens); ++i) {
737 out = param->tokens[i];
738 if (out->token == TOKEN_EOL)
739 ftepp_out(ftepp, "\n", false);
741 ppmacro *find = ftepp_macro_find(ftepp, out->value);
742 if (OPTS_FLAG(FTEPP_INDIRECT_EXPANSION) && find && !find->has_params)
743 ftepp_macro_expand(ftepp, find, NULL, false);
745 ftepp_out(ftepp, out->value, false);
750 static bool ftepp_preprocess(ftepp_t *ftepp);
751 static bool ftepp_macro_expand(ftepp_t *ftepp, ppmacro *macro, macroparam *params, bool resetline)
754 char *old_string = ftepp->output_string;
756 lex_file *old_lexer = ftepp->lex;
757 size_t vararg_start = vec_size(macro->params);
770 if (vararg_start < vec_size(params))
771 varargs = vec_size(params) - vararg_start;
776 if (!vec_size(macro->output))
779 ftepp->output_string = NULL;
780 for (o = 0; o < vec_size(macro->output); ++o) {
781 pptoken *out = macro->output[o];
782 switch (out->token) {
784 if (!macro->variadic) {
785 ftepp_error(ftepp, "internal preprocessor error: TOKEN_VA_ARGS in non-variadic macro");
786 vec_free(old_string);
793 ftepp_param_out(ftepp, ¶ms[pi + vararg_start]);
794 for (++pi; pi < varargs; ++pi) {
795 ftepp_out(ftepp, ", ", false);
796 ftepp_param_out(ftepp, ¶ms[pi + vararg_start]);
800 case TOKEN_VA_ARGS_ARRAY:
801 if ((size_t)out->constval.i >= varargs) {
802 ftepp_error(ftepp, "subscript of `[%u]` is out of bounds for `__VA_ARGS__`", out->constval.i);
803 vec_free(old_string);
807 ftepp_param_out(ftepp, ¶ms[out->constval.i + vararg_start]);
811 util_asprintf(&buffer, "%d", varargs);
812 ftepp_out(ftepp, buffer, false);
819 if (!macro_params_find(macro, out->value, &pi)) {
820 ftepp_out(ftepp, out->value, false);
823 ftepp_param_out(ftepp, ¶ms[pi]);
826 if (o + 1 < vec_size(macro->output)) {
827 nextok = macro->output[o+1]->token;
829 /* raw concatenation */
834 if ( (nextok == TOKEN_IDENT ||
835 nextok == TOKEN_KEYWORD ||
836 nextok == TOKEN_TYPENAME) &&
837 macro_params_find(macro, macro->output[o+1]->value, &pi))
841 ftepp_stringify(ftepp, ¶ms[pi]);
845 ftepp_out(ftepp, "#", false);
848 ftepp_out(ftepp, "\n", false);
852 #define buffer_stripable(X) ((X) == ' ' || (X) == '\t')
853 if (vec_size(macro->output) > o + 1 && macro->output[o+1]->token == '#' && buffer_stripable(*buffer))
856 while (buffer_stripable(*buffer)) buffer++;
859 ftepp_out(ftepp, buffer, false);
863 vec_push(ftepp->output_string, 0);
864 /* Now run the preprocessor recursively on this string buffer */
866 printf("__________\n%s\n=========\n", ftepp->output_string);
868 inlex = lex_open_string(ftepp->output_string, vec_size(ftepp->output_string)-1, ftepp->lex->name);
870 ftepp_error(ftepp, "internal error: failed to instantiate lexer");
875 inlex->line = ftepp->lex->line;
876 inlex->sline = ftepp->lex->sline;
879 old_inmacro = ftepp->in_macro;
880 ftepp->in_macro = true;
881 ftepp->output_string = NULL;
882 if (!ftepp_preprocess(ftepp)) {
883 ftepp->in_macro = old_inmacro;
884 vec_free(ftepp->lex->open_string);
885 vec_free(ftepp->output_string);
886 lex_close(ftepp->lex);
890 ftepp->in_macro = old_inmacro;
891 vec_free(ftepp->lex->open_string);
892 lex_close(ftepp->lex);
894 inner_string = ftepp->output_string;
895 ftepp->output_string = old_string;
897 has_newlines = (strchr(inner_string, '\n') != NULL);
899 if (has_newlines && !old_inmacro)
900 ftepp_recursion_header(ftepp);
902 vec_append(ftepp->output_string, vec_size(inner_string), inner_string);
903 vec_free(inner_string);
905 if (has_newlines && !old_inmacro)
906 ftepp_recursion_footer(ftepp);
908 if (resetline && !ftepp->in_macro) {
910 util_snprintf(lineno, 128, "\n#pragma line(%lu)\n", (unsigned long)(old_lexer->sline));
911 ftepp_out(ftepp, lineno, false);
914 old_string = ftepp->output_string;
916 ftepp->lex = old_lexer;
917 ftepp->output_string = old_string;
921 static bool ftepp_macro_call(ftepp_t *ftepp, ppmacro *macro)
924 macroparam *params = NULL;
928 if (!macro->has_params) {
929 if (!ftepp_macro_expand(ftepp, macro, NULL, false))
936 if (!ftepp_skipallwhite(ftepp))
939 if (ftepp->token != '(') {
940 ftepp_error(ftepp, "expected macro parameters in parenthesis");
945 paramline = ftepp->lex->sline;
946 if (!ftepp_macro_call_params(ftepp, ¶ms))
949 if ( vec_size(params) < vec_size(macro->params) ||
950 (vec_size(params) > vec_size(macro->params) && !macro->variadic) )
952 ftepp_error(ftepp, "macro %s expects%s %u paramteters, %u provided", macro->name,
953 (macro->variadic ? " at least" : ""),
954 (unsigned int)vec_size(macro->params),
955 (unsigned int)vec_size(params));
960 if (!ftepp_macro_expand(ftepp, macro, params, (paramline != ftepp->lex->sline)))
965 for (o = 0; o < vec_size(params); ++o)
966 macroparam_clean(¶ms[o]);
972 * #if - the FTEQCC way:
973 * defined(FOO) => true if FOO was #defined regardless of parameters or contents
974 * <numbers> => True if the number is not 0
975 * !<factor> => True if the factor yields false
976 * !!<factor> => ERROR on 2 or more unary nots
977 * <macro> => becomes the macro's FIRST token regardless of parameters
978 * <e> && <e> => True if both expressions are true
979 * <e> || <e> => True if either expression is true
981 * <ident> => False (remember for macros the <macro> rule applies instead)
982 * Unary + and - are weird and wrong in fteqcc so we don't allow them
983 * parenthesis in expressions are allowed
984 * parameter lists on macros are errors
985 * No mathematical calculations are executed
987 static bool ftepp_if_expr(ftepp_t *ftepp, bool *out, double *value_out);
988 static bool ftepp_if_op(ftepp_t *ftepp)
990 ftepp->lex->flags.noops = false;
992 if (!ftepp_skipspace(ftepp))
994 ftepp->lex->flags.noops = true;
997 static bool ftepp_if_value(ftepp_t *ftepp, bool *out, double *value_out)
1000 bool wasnot = false;
1001 bool wasneg = false;
1003 if (!ftepp_skipspace(ftepp))
1006 while (ftepp->token == '!') {
1009 if (!ftepp_skipspace(ftepp))
1013 if (ftepp->token == TOKEN_OPERATOR && !strcmp(ftepp_tokval(ftepp), "-"))
1017 if (!ftepp_skipspace(ftepp))
1021 switch (ftepp->token) {
1023 case TOKEN_TYPENAME:
1025 if (!strcmp(ftepp_tokval(ftepp), "defined")) {
1027 if (!ftepp_skipspace(ftepp))
1029 if (ftepp->token != '(') {
1030 ftepp_error(ftepp, "`defined` keyword in #if requires a macro name in parenthesis");
1034 if (!ftepp_skipspace(ftepp))
1036 if (ftepp->token != TOKEN_IDENT &&
1037 ftepp->token != TOKEN_TYPENAME &&
1038 ftepp->token != TOKEN_KEYWORD)
1040 ftepp_error(ftepp, "defined() used on an unexpected token type");
1043 macro = ftepp_macro_find(ftepp, ftepp_tokval(ftepp));
1046 if (!ftepp_skipspace(ftepp))
1048 if (ftepp->token != ')') {
1049 ftepp_error(ftepp, "expected closing paren");
1055 macro = ftepp_macro_find(ftepp, ftepp_tokval(ftepp));
1056 if (!macro || !vec_size(macro->output)) {
1060 /* This does not expand recursively! */
1061 switch (macro->output[0]->token) {
1062 case TOKEN_INTCONST:
1063 *value_out = macro->output[0]->constval.i;
1064 *out = !!(macro->output[0]->constval.i);
1066 case TOKEN_FLOATCONST:
1067 *value_out = macro->output[0]->constval.f;
1068 *out = !!(macro->output[0]->constval.f);
1076 case TOKEN_STRINGCONST:
1080 case TOKEN_INTCONST:
1081 *value_out = ftepp->lex->tok.constval.i;
1082 *out = !!(ftepp->lex->tok.constval.i);
1084 case TOKEN_FLOATCONST:
1085 *value_out = ftepp->lex->tok.constval.f;
1086 *out = !!(ftepp->lex->tok.constval.f);
1091 if (!ftepp_if_expr(ftepp, out, value_out))
1093 if (ftepp->token != ')') {
1094 ftepp_error(ftepp, "expected closing paren in #if expression");
1100 ftepp_error(ftepp, "junk in #if: `%s` ...", ftepp_tokval(ftepp));
1101 if (OPTS_OPTION_BOOL(OPTION_DEBUG))
1102 ftepp_error(ftepp, "internal: token %i\n", ftepp->token);
1106 *value_out = -*value_out;
1109 *value_out = (*out ? 1 : 0);
1115 static bool ftepp_if_nextvalue(ftepp_t *ftepp, bool *out, double *value_out)
1117 if (!ftepp_next(ftepp))
1119 return ftepp_if_value(ftepp, out, value_out);
1123 static bool ftepp_if_expr(ftepp_t *ftepp, bool *out, double *value_out)
1125 if (!ftepp_if_value(ftepp, out, value_out))
1128 if (!ftepp_if_op(ftepp))
1131 if (ftepp->token == ')' || ftepp->token != TOKEN_OPERATOR)
1134 /* FTEQCC is all right-associative and no precedence here */
1135 if (!strcmp(ftepp_tokval(ftepp), "&&") ||
1136 !strcmp(ftepp_tokval(ftepp), "||"))
1139 char opc = ftepp_tokval(ftepp)[0];
1143 if (!ftepp_next(ftepp))
1145 if (!ftepp_if_expr(ftepp, &next, &nextvalue))
1149 *out = *out && next;
1151 *out = *out || next;
1153 *value_out = (*out ? 1 : 0);
1156 else if (!strcmp(ftepp_tokval(ftepp), "==") ||
1157 !strcmp(ftepp_tokval(ftepp), "!=") ||
1158 !strcmp(ftepp_tokval(ftepp), ">=") ||
1159 !strcmp(ftepp_tokval(ftepp), "<=") ||
1160 !strcmp(ftepp_tokval(ftepp), ">") ||
1161 !strcmp(ftepp_tokval(ftepp), "<"))
1164 const char opc0 = ftepp_tokval(ftepp)[0];
1165 const char opc1 = ftepp_tokval(ftepp)[1];
1168 if (!ftepp_next(ftepp))
1170 if (!ftepp_if_expr(ftepp, &next, &other))
1174 *out = (*value_out == other);
1175 else if (opc0 == '!')
1176 *out = (*value_out != other);
1177 else if (opc0 == '>') {
1178 if (opc1 == '=') *out = (*value_out >= other);
1179 else *out = (*value_out > other);
1181 else if (opc0 == '<') {
1182 if (opc1 == '=') *out = (*value_out <= other);
1183 else *out = (*value_out < other);
1185 *value_out = (*out ? 1 : 0);
1190 ftepp_error(ftepp, "junk after #if");
1195 static bool ftepp_if(ftepp_t *ftepp, ppcondition *cond)
1197 bool result = false;
1200 memset(cond, 0, sizeof(*cond));
1201 (void)ftepp_next(ftepp);
1203 if (!ftepp_skipspace(ftepp))
1205 if (ftepp->token == TOKEN_EOL) {
1206 ftepp_error(ftepp, "expected expression for #if-directive");
1210 if (!ftepp_if_expr(ftepp, &result, &dummy))
1218 * ifdef is rather simple
1220 static bool ftepp_ifdef(ftepp_t *ftepp, ppcondition *cond)
1223 memset(cond, 0, sizeof(*cond));
1224 (void)ftepp_next(ftepp);
1225 if (!ftepp_skipspace(ftepp))
1228 switch (ftepp->token) {
1230 case TOKEN_TYPENAME:
1232 macro = ftepp_macro_find(ftepp, ftepp_tokval(ftepp));
1235 ftepp_error(ftepp, "expected macro name");
1239 (void)ftepp_next(ftepp);
1240 if (!ftepp_skipspace(ftepp))
1242 /* relaxing this condition
1243 if (ftepp->token != TOKEN_EOL && ftepp->token != TOKEN_EOF) {
1244 ftepp_error(ftepp, "stray tokens after #ifdef");
1253 * undef is also simple
1255 static bool ftepp_undef(ftepp_t *ftepp)
1257 (void)ftepp_next(ftepp);
1258 if (!ftepp_skipspace(ftepp))
1261 if (ftepp->output_on) {
1262 switch (ftepp->token) {
1264 case TOKEN_TYPENAME:
1266 ftepp_macro_delete(ftepp, ftepp_tokval(ftepp));
1269 ftepp_error(ftepp, "expected macro name");
1274 (void)ftepp_next(ftepp);
1275 if (!ftepp_skipspace(ftepp))
1277 /* relaxing this condition
1278 if (ftepp->token != TOKEN_EOL && ftepp->token != TOKEN_EOF) {
1279 ftepp_error(ftepp, "stray tokens after #ifdef");
1286 /* Special unescape-string function which skips a leading quote
1287 * and stops at a quote, not just at \0
1289 static void unescape(const char *str, char *out) {
1291 while (*str && *str != '"') {
1295 case '\\': *out++ = *str; break;
1296 case '"': *out++ = *str; break;
1297 case 'a': *out++ = '\a'; break;
1298 case 'b': *out++ = '\b'; break;
1299 case 'r': *out++ = '\r'; break;
1300 case 'n': *out++ = '\n'; break;
1301 case 't': *out++ = '\t'; break;
1302 case 'f': *out++ = '\f'; break;
1303 case 'v': *out++ = '\v'; break;
1318 static char *ftepp_include_find_path(const char *file, const char *pathfile)
1321 char *filename = NULL;
1322 const char *last_slash;
1328 last_slash = strrchr(pathfile, '/');
1331 len = last_slash - pathfile;
1332 memcpy(vec_add(filename, len), pathfile, len);
1333 vec_push(filename, '/');
1337 memcpy(vec_add(filename, len+1), file, len);
1338 vec_last(filename) = 0;
1340 fp = fopen(filename, "rb");
1349 static char *ftepp_include_find(ftepp_t *ftepp, const char *file)
1351 char *filename = NULL;
1353 filename = ftepp_include_find_path(file, ftepp->includename);
1355 filename = ftepp_include_find_path(file, ftepp->itemname);
1359 static bool ftepp_directive_warning(ftepp_t *ftepp) {
1360 char *message = NULL;
1362 if (!ftepp_skipspace(ftepp))
1365 /* handle the odd non string constant case so it works like C */
1366 if (ftepp->token != TOKEN_STRINGCONST) {
1368 vec_append(message, 8, "#warning");
1370 while (ftepp->token != TOKEN_EOL) {
1371 vec_append(message, strlen(ftepp_tokval(ftepp)), ftepp_tokval(ftepp));
1374 vec_push(message, '\0');
1375 if (ftepp->output_on)
1376 store = ftepp_warn(ftepp, WARN_CPP, message);
1383 if (!ftepp->output_on)
1386 unescape (ftepp_tokval(ftepp), ftepp_tokval(ftepp));
1387 return ftepp_warn(ftepp, WARN_CPP, "#warning %s", ftepp_tokval(ftepp));
1390 static void ftepp_directive_error(ftepp_t *ftepp) {
1391 char *message = NULL;
1393 if (!ftepp_skipspace(ftepp))
1396 /* handle the odd non string constant case so it works like C */
1397 if (ftepp->token != TOKEN_STRINGCONST) {
1398 vec_append(message, 6, "#error");
1400 while (ftepp->token != TOKEN_EOL) {
1401 vec_append(message, strlen(ftepp_tokval(ftepp)), ftepp_tokval(ftepp));
1404 vec_push(message, '\0');
1405 if (ftepp->output_on)
1406 ftepp_error(ftepp, message);
1411 if (!ftepp->output_on)
1414 unescape (ftepp_tokval(ftepp), ftepp_tokval(ftepp));
1415 ftepp_error(ftepp, "#error %s", ftepp_tokval(ftepp));
1418 static void ftepp_directive_message(ftepp_t *ftepp) {
1419 char *message = NULL;
1421 if (!ftepp_skipspace(ftepp))
1424 /* handle the odd non string constant case so it works like C */
1425 if (ftepp->token != TOKEN_STRINGCONST) {
1426 vec_append(message, 8, "#message");
1428 while (ftepp->token != TOKEN_EOL) {
1429 vec_append(message, strlen(ftepp_tokval(ftepp)), ftepp_tokval(ftepp));
1432 vec_push(message, '\0');
1433 if (ftepp->output_on)
1434 con_cprintmsg(ftepp->lex->tok.ctx, LVL_MSG, "message", message);
1439 if (!ftepp->output_on)
1442 unescape (ftepp_tokval(ftepp), ftepp_tokval(ftepp));
1443 con_cprintmsg(ftepp->lex->tok.ctx, LVL_MSG, "message", ftepp_tokval(ftepp));
1448 * FIXME: do we need/want a -I option?
1449 * FIXME: what about when dealing with files in subdirectories coming from a progs.src?
1451 static bool ftepp_include(ftepp_t *ftepp)
1453 lex_file *old_lexer = ftepp->lex;
1458 char *parsename = NULL;
1459 char *old_includename;
1461 (void)ftepp_next(ftepp);
1462 if (!ftepp_skipspace(ftepp))
1465 if (ftepp->token != TOKEN_STRINGCONST) {
1466 ppmacro *macro = ftepp_macro_find(ftepp, ftepp_tokval(ftepp));
1468 char *backup = ftepp->output_string;
1469 ftepp->output_string = NULL;
1470 if (ftepp_macro_expand(ftepp, macro, NULL, true)) {
1471 parsename = util_strdup(ftepp->output_string);
1472 vec_free(ftepp->output_string);
1473 ftepp->output_string = backup;
1475 ftepp->output_string = backup;
1476 ftepp_error(ftepp, "expected filename to include");
1479 } else if (OPTS_FLAG(FTEPP_PREDEFS)) {
1480 /* Well it could be a predefine like __LINE__ */
1481 char *(*predef)(ftepp_t*) = ftepp_predef(ftepp_tokval(ftepp));
1483 parsename = predef(ftepp);
1485 ftepp_error(ftepp, "expected filename to include");
1491 if (!ftepp->output_on) {
1492 (void)ftepp_next(ftepp);
1497 unescape(parsename, parsename);
1499 char *tokval = ftepp_tokval(ftepp);
1500 unescape(tokval, tokval);
1501 parsename = util_strdup(tokval);
1504 ctx = ftepp_ctx(ftepp);
1505 ftepp_out(ftepp, "\n#pragma file(", false);
1506 ftepp_out(ftepp, parsename, false);
1507 ftepp_out(ftepp, ")\n#pragma line(1)\n", false);
1509 filename = ftepp_include_find(ftepp, parsename);
1511 ftepp_error(ftepp, "failed to open include file `%s`", parsename);
1516 inlex = lex_open(filename);
1518 ftepp_error(ftepp, "open failed on include file `%s`", filename);
1523 old_includename = ftepp->includename;
1524 ftepp->includename = filename;
1525 if (!ftepp_preprocess(ftepp)) {
1526 vec_free(ftepp->includename);
1527 ftepp->includename = old_includename;
1528 lex_close(ftepp->lex);
1529 ftepp->lex = old_lexer;
1532 vec_free(ftepp->includename);
1533 ftepp->includename = old_includename;
1534 lex_close(ftepp->lex);
1535 ftepp->lex = old_lexer;
1537 ftepp_out(ftepp, "\n#pragma file(", false);
1538 ftepp_out(ftepp, ctx.file, false);
1539 util_snprintf(lineno, sizeof(lineno), ")\n#pragma line(%lu)\n", (unsigned long)(ctx.line+1));
1540 ftepp_out(ftepp, lineno, false);
1543 (void)ftepp_next(ftepp);
1544 if (!ftepp_skipspace(ftepp))
1546 if (ftepp->token != TOKEN_EOL) {
1547 ftepp_error(ftepp, "stray tokens after #include");
1550 (void)ftepp_next(ftepp);
1555 /* Basic structure handlers */
1556 static bool ftepp_else_allowed(ftepp_t *ftepp)
1558 if (!vec_size(ftepp->conditions)) {
1559 ftepp_error(ftepp, "#else without #if");
1562 if (vec_last(ftepp->conditions).had_else) {
1563 ftepp_error(ftepp, "multiple #else for a single #if");
1569 static GMQCC_INLINE void ftepp_inmacro(ftepp_t *ftepp, const char *hash) {
1570 if (ftepp->in_macro)
1571 (void)!ftepp_warn(ftepp, WARN_DIRECTIVE_INMACRO, "`#%s` directive in macro", hash);
1574 static bool ftepp_hash(ftepp_t *ftepp)
1579 lex_ctx_t ctx = ftepp_ctx(ftepp);
1581 if (!ftepp_skipspace(ftepp))
1584 switch (ftepp->token) {
1587 case TOKEN_TYPENAME:
1588 if (!strcmp(ftepp_tokval(ftepp), "define")) {
1589 ftepp_inmacro(ftepp, "define");
1590 return ftepp_define(ftepp);
1592 else if (!strcmp(ftepp_tokval(ftepp), "undef")) {
1593 ftepp_inmacro(ftepp, "undef");
1594 return ftepp_undef(ftepp);
1596 else if (!strcmp(ftepp_tokval(ftepp), "ifdef")) {
1597 ftepp_inmacro(ftepp, "ifdef");
1598 if (!ftepp_ifdef(ftepp, &cond))
1600 cond.was_on = cond.on;
1601 vec_push(ftepp->conditions, cond);
1602 ftepp->output_on = ftepp->output_on && cond.on;
1605 else if (!strcmp(ftepp_tokval(ftepp), "ifndef")) {
1606 ftepp_inmacro(ftepp, "ifndef");
1607 if (!ftepp_ifdef(ftepp, &cond))
1610 cond.was_on = cond.on;
1611 vec_push(ftepp->conditions, cond);
1612 ftepp->output_on = ftepp->output_on && cond.on;
1615 else if (!strcmp(ftepp_tokval(ftepp), "elifdef")) {
1616 ftepp_inmacro(ftepp, "elifdef");
1617 if (!ftepp_else_allowed(ftepp))
1619 if (!ftepp_ifdef(ftepp, &cond))
1621 pc = &vec_last(ftepp->conditions);
1622 pc->on = !pc->was_on && cond.on;
1623 pc->was_on = pc->was_on || pc->on;
1624 ftepp_update_output_condition(ftepp);
1627 else if (!strcmp(ftepp_tokval(ftepp), "elifndef")) {
1628 ftepp_inmacro(ftepp, "elifndef");
1629 if (!ftepp_else_allowed(ftepp))
1631 if (!ftepp_ifdef(ftepp, &cond))
1634 pc = &vec_last(ftepp->conditions);
1635 pc->on = !pc->was_on && cond.on;
1636 pc->was_on = pc->was_on || pc->on;
1637 ftepp_update_output_condition(ftepp);
1640 else if (!strcmp(ftepp_tokval(ftepp), "elif")) {
1641 ftepp_inmacro(ftepp, "elif");
1642 if (!ftepp_else_allowed(ftepp))
1644 if (!ftepp_if(ftepp, &cond))
1646 pc = &vec_last(ftepp->conditions);
1647 pc->on = !pc->was_on && cond.on;
1648 pc->was_on = pc->was_on || pc->on;
1649 ftepp_update_output_condition(ftepp);
1652 else if (!strcmp(ftepp_tokval(ftepp), "if")) {
1653 ftepp_inmacro(ftepp, "if");
1654 if (!ftepp_if(ftepp, &cond))
1656 cond.was_on = cond.on;
1657 vec_push(ftepp->conditions, cond);
1658 ftepp->output_on = ftepp->output_on && cond.on;
1661 else if (!strcmp(ftepp_tokval(ftepp), "else")) {
1662 ftepp_inmacro(ftepp, "else");
1663 if (!ftepp_else_allowed(ftepp))
1665 pc = &vec_last(ftepp->conditions);
1666 pc->on = !pc->was_on;
1667 pc->had_else = true;
1669 ftepp_update_output_condition(ftepp);
1672 else if (!strcmp(ftepp_tokval(ftepp), "endif")) {
1673 ftepp_inmacro(ftepp, "endif");
1674 if (!vec_size(ftepp->conditions)) {
1675 ftepp_error(ftepp, "#endif without #if");
1678 vec_pop(ftepp->conditions);
1680 ftepp_update_output_condition(ftepp);
1683 else if (!strcmp(ftepp_tokval(ftepp), "include")) {
1684 ftepp_inmacro(ftepp, "include");
1685 return ftepp_include(ftepp);
1687 else if (!strcmp(ftepp_tokval(ftepp), "pragma")) {
1688 ftepp_out(ftepp, "#", false);
1691 else if (!strcmp(ftepp_tokval(ftepp), "warning")) {
1692 ftepp_directive_warning(ftepp);
1695 else if (!strcmp(ftepp_tokval(ftepp), "error")) {
1696 ftepp_directive_error(ftepp);
1699 else if (!strcmp(ftepp_tokval(ftepp), "message")) {
1700 ftepp_directive_message(ftepp);
1704 if (ftepp->output_on) {
1705 ftepp_error(ftepp, "unrecognized preprocessor directive: `%s`", ftepp_tokval(ftepp));
1712 /* break; never reached */
1714 ftepp_error(ftepp, "unexpected preprocessor token: `%s`", ftepp_tokval(ftepp));
1717 ftepp_errorat(ftepp, ctx, "empty preprocessor directive");
1720 ftepp_error(ftepp, "missing newline at end of file", ftepp_tokval(ftepp));
1723 /* Builtins! Don't forget the builtins! */
1724 case TOKEN_INTCONST:
1725 case TOKEN_FLOATCONST:
1726 ftepp_out(ftepp, "#", false);
1729 if (!ftepp_skipspace(ftepp))
1734 static bool ftepp_preprocess(ftepp_t *ftepp)
1737 bool newline = true;
1740 char *expand = NULL;
1742 ftepp->lex->flags.preprocessing = true;
1743 ftepp->lex->flags.mergelines = false;
1744 ftepp->lex->flags.noops = true;
1749 if (ftepp->token >= TOKEN_EOF)
1751 switch (ftepp->token) {
1754 case TOKEN_TYPENAME:
1755 /* is it a predef? */
1756 if (OPTS_FLAG(FTEPP_PREDEFS)) {
1757 char *(*predef)(ftepp_t*) = ftepp_predef(ftepp_tokval(ftepp));
1759 expand = predef(ftepp);
1760 ftepp_out (ftepp, expand, false);
1768 if (ftepp->output_on)
1769 macro = ftepp_macro_find(ftepp, ftepp_tokval(ftepp));
1774 ftepp_out(ftepp, ftepp_tokval(ftepp), false);
1778 if (!ftepp_macro_call(ftepp, macro))
1779 ftepp->token = TOKEN_ERROR;
1783 ftepp_out(ftepp, ftepp_tokval(ftepp), false);
1787 ftepp->lex->flags.mergelines = true;
1788 if (ftepp_next(ftepp) >= TOKEN_EOF) {
1789 ftepp_error(ftepp, "error in preprocessor directive");
1790 ftepp->token = TOKEN_ERROR;
1793 if (!ftepp_hash(ftepp))
1794 ftepp->token = TOKEN_ERROR;
1795 ftepp->lex->flags.mergelines = false;
1799 ftepp_out(ftepp, "\n", true);
1803 /* same as default but don't set newline=false */
1804 ftepp_out(ftepp, ftepp_tokval(ftepp), true);
1809 ftepp_out(ftepp, ftepp_tokval(ftepp), false);
1813 } while (!ftepp->errors && ftepp->token < TOKEN_EOF);
1815 /* force a 0 at the end but don't count it as added to the output */
1816 vec_push(ftepp->output_string, 0);
1817 vec_shrinkby(ftepp->output_string, 1);
1819 return (ftepp->token == TOKEN_EOF);
1822 /* Like in parser.c - files keep the previous state so we have one global
1823 * preprocessor. Except here we will want to warn about dangling #ifs.
1825 static bool ftepp_preprocess_done(ftepp_t *ftepp)
1828 if (vec_size(ftepp->conditions)) {
1829 if (ftepp_warn(ftepp, WARN_MULTIFILE_IF, "#if spanning multiple files, is this intended?"))
1832 lex_close(ftepp->lex);
1834 if (ftepp->itemname) {
1835 mem_d(ftepp->itemname);
1836 ftepp->itemname = NULL;
1841 bool ftepp_preprocess_file(ftepp_t *ftepp, const char *filename)
1843 ftepp->lex = lex_open(filename);
1844 ftepp->itemname = util_strdup(filename);
1846 con_out("failed to open file \"%s\"\n", filename);
1849 if (!ftepp_preprocess(ftepp))
1851 return ftepp_preprocess_done(ftepp);
1854 bool ftepp_preprocess_string(ftepp_t *ftepp, const char *name, const char *str)
1856 ftepp->lex = lex_open_string(str, strlen(str), name);
1857 ftepp->itemname = util_strdup(name);
1859 con_out("failed to create lexer for string \"%s\"\n", name);
1862 if (!ftepp_preprocess(ftepp))
1864 return ftepp_preprocess_done(ftepp);
1868 void ftepp_add_macro(ftepp_t *ftepp, const char *name, const char *value) {
1869 char *create = NULL;
1871 /* use saner path for empty macros */
1873 ftepp_add_define(ftepp, "__builtin__", name);
1877 vec_append(create, 8, "#define ");
1878 vec_append(create, strlen(name), name);
1879 vec_push (create, ' ');
1880 vec_append(create, strlen(value), value);
1881 vec_push (create, 0);
1883 ftepp_preprocess_string(ftepp, "__builtin__", create);
1887 ftepp_t *ftepp_create()
1894 ftepp = ftepp_new();
1898 memset(minor, 0, sizeof(minor));
1899 memset(major, 0, sizeof(major));
1901 /* set the right macro based on the selected standard */
1902 ftepp_add_define(ftepp, NULL, "GMQCC");
1903 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_FTEQCC) {
1904 ftepp_add_define(ftepp, NULL, "__STD_FTEQCC__");
1913 } else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_GMQCC) {
1914 ftepp_add_define(ftepp, NULL, "__STD_GMQCC__");
1915 util_snprintf(major, 32, "\"%d\"", GMQCC_VERSION_MAJOR);
1916 util_snprintf(minor, 32, "\"%d\"", GMQCC_VERSION_MINOR);
1917 } else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCCX) {
1918 ftepp_add_define(ftepp, NULL, "__STD_QCCX__");
1919 util_snprintf(major, 32, "\"%d\"", GMQCC_VERSION_MAJOR);
1920 util_snprintf(minor, 32, "\"%d\"", GMQCC_VERSION_MINOR);
1921 } else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
1922 ftepp_add_define(ftepp, NULL, "__STD_QCC__");
1933 ftepp_add_macro(ftepp, "__STD_VERSION_MINOR__", minor);
1934 ftepp_add_macro(ftepp, "__STD_VERSION_MAJOR__", major);
1937 * We're going to just make __NULL__ nil, which works for 60% of the
1938 * cases of __NULL_ for fteqcc.
1940 ftepp_add_macro(ftepp, "__NULL__", "nil");
1942 /* add all the math constants if they can be */
1943 if (OPTS_FLAG(FTEPP_MATHDEFS)) {
1944 for (i = 0; i < GMQCC_ARRAY_COUNT(ftepp_math_constants); i++)
1945 if (!ftepp_macro_find(ftepp, ftepp_math_constants[i][0]))
1946 ftepp_add_macro(ftepp, ftepp_math_constants[i][0], ftepp_math_constants[i][1]);
1952 void ftepp_add_define(ftepp_t *ftepp, const char *source, const char *name)
1955 lex_ctx_t ctx = { "__builtin__", 0, 0 };
1957 macro = ppmacro_new(ctx, name);
1958 /*vec_push(ftepp->macros, macro);*/
1959 util_htset(ftepp->macros, name, macro);
1962 const char *ftepp_get(ftepp_t *ftepp)
1964 return ftepp->output_string;
1967 void ftepp_flush(ftepp_t *ftepp)
1969 ftepp_flush_do(ftepp);
1972 void ftepp_finish(ftepp_t *ftepp)
1976 ftepp_delete(ftepp);