2 * Copyright (C) 2012, 2013
6 * Permission is hereby granted, free of charge, to any person obtaining a copy of
7 * this software and associated documentation files (the "Software"), to deal in
8 * the Software without restriction, including without limitation the rights to
9 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
10 * of the Software, and to permit persons to whom the Software is furnished to do
11 * so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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;
255 if (token->token == TOKEN_WHITE)
256 token->value = util_strdup(" ");
259 token->value = util_strdup(ftepp_tokval(ftepp));
261 memcpy(&token->constval, &ftepp->lex->tok.constval, sizeof(token->constval));
265 static GMQCC_INLINE void pptoken_delete(pptoken *self)
271 static ppmacro *ppmacro_new(lex_ctx_t ctx, const char *name)
273 ppmacro *macro = (ppmacro*)mem_a(sizeof(ppmacro));
276 memset(macro, 0, sizeof(*macro));
277 macro->name = util_strdup(name);
281 static void ppmacro_delete(ppmacro *self)
284 for (i = 0; i < vec_size(self->params); ++i)
285 mem_d(self->params[i]);
286 vec_free(self->params);
287 for (i = 0; i < vec_size(self->output); ++i)
288 pptoken_delete(self->output[i]);
289 vec_free(self->output);
294 static ftepp_t* ftepp_new(void)
298 ftepp = (ftepp_t*)mem_a(sizeof(*ftepp));
299 memset(ftepp, 0, sizeof(*ftepp));
301 ftepp->macros = util_htnew(HT_MACROS);
302 ftepp->output_on = true;
303 ftepp->predef_countval = 0;
304 ftepp->predef_randval = 0;
309 static GMQCC_INLINE void ftepp_flush_do(ftepp_t *self)
311 vec_free(self->output_string);
314 static void ftepp_delete(ftepp_t *self)
316 ftepp_flush_do(self);
318 mem_d(self->itemname);
319 if (self->includename)
320 vec_free(self->includename);
322 util_htrem(self->macros, (void (*)(void*))&ppmacro_delete);
324 vec_free(self->conditions);
326 lex_close(self->lex);
330 static void ftepp_out(ftepp_t *ftepp, const char *str, bool ignore_cond)
332 if (ignore_cond || ftepp->output_on)
337 data = vec_add(ftepp->output_string, len);
338 memcpy(data, str, len);
342 static GMQCC_INLINE void ftepp_update_output_condition(ftepp_t *ftepp)
345 ftepp->output_on = true;
346 for (i = 0; i < vec_size(ftepp->conditions); ++i)
347 ftepp->output_on = ftepp->output_on && ftepp->conditions[i].on;
350 static GMQCC_INLINE ppmacro* ftepp_macro_find(ftepp_t *ftepp, const char *name)
352 return (ppmacro*)util_htget(ftepp->macros, name);
355 static GMQCC_INLINE void ftepp_macro_delete(ftepp_t *ftepp, const char *name)
357 util_htrm(ftepp->macros, name, (void (*)(void*))&ppmacro_delete);
360 static GMQCC_INLINE int ftepp_next(ftepp_t *ftepp)
362 return (ftepp->token = lex_do(ftepp->lex));
365 /* Important: this does not skip newlines! */
366 static bool ftepp_skipspace(ftepp_t *ftepp)
368 if (ftepp->token != TOKEN_WHITE)
370 while (ftepp_next(ftepp) == TOKEN_WHITE) {}
371 if (ftepp->token >= TOKEN_EOF) {
372 ftepp_error(ftepp, "unexpected end of preprocessor directive");
378 /* this one skips EOLs as well */
379 static bool ftepp_skipallwhite(ftepp_t *ftepp)
381 if (ftepp->token != TOKEN_WHITE && ftepp->token != TOKEN_EOL)
385 } while (ftepp->token == TOKEN_WHITE || ftepp->token == TOKEN_EOL);
386 if (ftepp->token >= TOKEN_EOF) {
387 ftepp_error(ftepp, "unexpected end of preprocessor directive");
394 * The huge macro parsing code...
396 static bool ftepp_define_params(ftepp_t *ftepp, ppmacro *macro)
400 if (!ftepp_skipspace(ftepp))
402 if (ftepp->token == ')')
404 switch (ftepp->token) {
408 vec_push(macro->params, util_strdup(ftepp_tokval(ftepp)));
411 macro->variadic = true;
414 ftepp_error(ftepp, "unexpected token in parameter list");
418 if (!ftepp_skipspace(ftepp))
420 if (macro->variadic && ftepp->token != ')') {
421 ftepp_error(ftepp, "cannot have parameters after the variadic parameters");
424 } while (ftepp->token == ',');
426 if (ftepp->token != ')') {
427 ftepp_error(ftepp, "expected closing paren after macro parameter list");
431 /* skipspace happens in ftepp_define */
435 static bool ftepp_define_body(ftepp_t *ftepp, ppmacro *macro)
438 while (ftepp->token != TOKEN_EOL && ftepp->token < TOKEN_EOF) {
439 bool subscript = false;
441 if (macro->variadic && !strcmp(ftepp_tokval(ftepp), "__VA_ARGS__")) {
442 subscript = !!(ftepp_next(ftepp) == '#');
444 if (subscript && ftepp_next(ftepp) != '#') {
445 ftepp_error(ftepp, "expected `##` in __VA_ARGS__ for subscripting");
447 } else if (subscript) {
448 if (ftepp_next(ftepp) == '[') {
449 if (ftepp_next(ftepp) != TOKEN_INTCONST) {
450 ftepp_error(ftepp, "expected index for __VA_ARGS__ subscript");
454 index = (int)strtol(ftepp_tokval(ftepp), NULL, 10);
456 if (ftepp_next(ftepp) != ']') {
457 ftepp_error(ftepp, "expected `]` in __VA_ARGS__ subscript");
462 * mark it as an array to be handled later as such and not
463 * as traditional __VA_ARGS__
465 ftepp->token = TOKEN_VA_ARGS_ARRAY;
466 ptok = pptoken_make(ftepp);
467 ptok->constval.i = index;
468 vec_push(macro->output, ptok);
471 ftepp_error(ftepp, "expected `[` for subscripting of __VA_ARGS__");
475 int old = ftepp->token;
476 ftepp->token = TOKEN_VA_ARGS;
477 ptok = pptoken_make(ftepp);
478 vec_push(macro->output, ptok);
482 else if (macro->variadic && !strcmp(ftepp_tokval(ftepp), "__VA_COUNT__")) {
483 ftepp->token = TOKEN_VA_COUNT;
484 ptok = pptoken_make(ftepp);
485 vec_push(macro->output, ptok);
488 ptok = pptoken_make(ftepp);
489 vec_push(macro->output, ptok);
493 /* recursive expansion can cause EOFs here */
494 if (ftepp->token != TOKEN_EOL && ftepp->token != TOKEN_EOF) {
495 ftepp_error(ftepp, "unexpected junk after macro or unexpected end of file");
501 static const char *ftepp_math_constants[][2] = {
502 { "M_E", "2.7182818284590452354" }, /* e */
503 { "M_LOG2E", "1.4426950408889634074" }, /* log_2 e */
504 { "M_LOG10E", "0.43429448190325182765" }, /* log_10 e */
505 { "M_LN2", "0.69314718055994530942" }, /* log_e 2 */
506 { "M_LN10", "2.30258509299404568402" }, /* log_e 10 */
507 { "M_PI", "3.14159265358979323846" }, /* pi */
508 { "M_PI_2", "1.57079632679489661923" }, /* pi/2 */
509 { "M_PI_4", "0.78539816339744830962" }, /* pi/4 */
510 { "M_1_PI", "0.31830988618379067154" }, /* 1/pi */
511 { "M_2_PI", "0.63661977236758134308" }, /* 2/pi */
512 { "M_2_SQRTPI", "1.12837916709551257390" }, /* 2/sqrt(pi) */
513 { "M_SQRT2", "1.41421356237309504880" }, /* sqrt(2) */
514 { "M_SQRT1_2", "0.70710678118654752440" }, /* 1/sqrt(2) */
515 { "M_TAU", "6.28318530717958647692" } /* pi*2 */
518 static bool ftepp_define(ftepp_t *ftepp)
520 ppmacro *macro = NULL;
521 size_t l = ftepp_ctx(ftepp).line;
523 bool mathconstant = false;
525 (void)ftepp_next(ftepp);
526 if (!ftepp_skipspace(ftepp))
529 switch (ftepp->token) {
533 for (i = 0; i < GMQCC_ARRAY_COUNT(ftepp_math_constants); i++) {
534 if (!strcmp(ftepp_math_constants[i][0], ftepp_tokval(ftepp))) {
540 macro = ftepp_macro_find(ftepp, ftepp_tokval(ftepp));
542 /* ignore creating a math macro if one is already present */
543 if (macro && mathconstant)
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 void ftepp_param_out(ftepp_t *ftepp, macroparam *param)
735 for (i = 0; i < vec_size(param->tokens); ++i) {
736 out = param->tokens[i];
737 if (out->token == TOKEN_EOL)
738 ftepp_out(ftepp, "\n", false);
740 ftepp_out(ftepp, out->value, false);
744 static bool ftepp_preprocess(ftepp_t *ftepp);
745 static bool ftepp_macro_expand(ftepp_t *ftepp, ppmacro *macro, macroparam *params, bool resetline)
748 char *old_string = ftepp->output_string;
750 lex_file *old_lexer = ftepp->lex;
751 size_t vararg_start = vec_size(macro->params);
763 if (vararg_start < vec_size(params))
764 varargs = vec_size(params) - vararg_start;
769 if (!vec_size(macro->output))
772 ftepp->output_string = NULL;
773 for (o = 0; o < vec_size(macro->output); ++o) {
774 pptoken *out = macro->output[o];
775 switch (out->token) {
777 if (!macro->variadic) {
778 ftepp_error(ftepp, "internal preprocessor error: TOKEN_VA_ARGS in non-variadic macro");
779 vec_free(old_string);
786 ftepp_param_out(ftepp, ¶ms[pi + vararg_start]);
787 for (++pi; pi < varargs; ++pi) {
788 ftepp_out(ftepp, ", ", false);
789 ftepp_param_out(ftepp, ¶ms[pi + vararg_start]);
793 case TOKEN_VA_ARGS_ARRAY:
794 if ((size_t)out->constval.i >= varargs) {
795 ftepp_error(ftepp, "subscript of `[%u]` is out of bounds for `__VA_ARGS__`", out->constval.i);
796 vec_free(old_string);
800 ftepp_param_out(ftepp, ¶ms[out->constval.i + vararg_start]);
804 util_asprintf(&buffer, "%d", varargs);
805 ftepp_out(ftepp, buffer, false);
812 if (!macro_params_find(macro, out->value, &pi)) {
813 ftepp_out(ftepp, out->value, false);
816 ftepp_param_out(ftepp, ¶ms[pi]);
819 if (o + 1 < vec_size(macro->output)) {
820 nextok = macro->output[o+1]->token;
822 /* raw concatenation */
826 if ( (nextok == TOKEN_IDENT ||
827 nextok == TOKEN_KEYWORD ||
828 nextok == TOKEN_TYPENAME) &&
829 macro_params_find(macro, macro->output[o+1]->value, &pi))
832 ftepp_stringify(ftepp, ¶ms[pi]);
836 ftepp_out(ftepp, "#", false);
839 ftepp_out(ftepp, "\n", false);
842 ftepp_out(ftepp, out->value, false);
846 vec_push(ftepp->output_string, 0);
847 /* Now run the preprocessor recursively on this string buffer */
849 printf("__________\n%s\n=========\n", ftepp->output_string);
851 inlex = lex_open_string(ftepp->output_string, vec_size(ftepp->output_string)-1, ftepp->lex->name);
853 ftepp_error(ftepp, "internal error: failed to instantiate lexer");
858 inlex->line = ftepp->lex->line;
859 inlex->sline = ftepp->lex->sline;
862 old_inmacro = ftepp->in_macro;
863 ftepp->in_macro = true;
864 ftepp->output_string = NULL;
865 if (!ftepp_preprocess(ftepp)) {
866 ftepp->in_macro = old_inmacro;
867 vec_free(ftepp->lex->open_string);
868 vec_free(ftepp->output_string);
869 lex_close(ftepp->lex);
873 ftepp->in_macro = old_inmacro;
874 vec_free(ftepp->lex->open_string);
875 lex_close(ftepp->lex);
877 inner_string = ftepp->output_string;
878 ftepp->output_string = old_string;
880 has_newlines = (strchr(inner_string, '\n') != NULL);
882 if (has_newlines && !old_inmacro)
883 ftepp_recursion_header(ftepp);
885 vec_append(ftepp->output_string, vec_size(inner_string), inner_string);
886 vec_free(inner_string);
888 if (has_newlines && !old_inmacro)
889 ftepp_recursion_footer(ftepp);
891 if (resetline && !ftepp->in_macro) {
893 util_snprintf(lineno, 128, "\n#pragma line(%lu)\n", (unsigned long)(old_lexer->sline));
894 ftepp_out(ftepp, lineno, false);
897 old_string = ftepp->output_string;
899 ftepp->lex = old_lexer;
900 ftepp->output_string = old_string;
904 static bool ftepp_macro_call(ftepp_t *ftepp, ppmacro *macro)
907 macroparam *params = NULL;
911 if (!macro->has_params) {
912 if (!ftepp_macro_expand(ftepp, macro, NULL, false))
919 if (!ftepp_skipallwhite(ftepp))
922 if (ftepp->token != '(') {
923 ftepp_error(ftepp, "expected macro parameters in parenthesis");
928 paramline = ftepp->lex->sline;
929 if (!ftepp_macro_call_params(ftepp, ¶ms))
932 if ( vec_size(params) < vec_size(macro->params) ||
933 (vec_size(params) > vec_size(macro->params) && !macro->variadic) )
935 ftepp_error(ftepp, "macro %s expects%s %u paramteters, %u provided", macro->name,
936 (macro->variadic ? " at least" : ""),
937 (unsigned int)vec_size(macro->params),
938 (unsigned int)vec_size(params));
943 if (!ftepp_macro_expand(ftepp, macro, params, (paramline != ftepp->lex->sline)))
948 for (o = 0; o < vec_size(params); ++o)
949 macroparam_clean(¶ms[o]);
955 * #if - the FTEQCC way:
956 * defined(FOO) => true if FOO was #defined regardless of parameters or contents
957 * <numbers> => True if the number is not 0
958 * !<factor> => True if the factor yields false
959 * !!<factor> => ERROR on 2 or more unary nots
960 * <macro> => becomes the macro's FIRST token regardless of parameters
961 * <e> && <e> => True if both expressions are true
962 * <e> || <e> => True if either expression is true
964 * <ident> => False (remember for macros the <macro> rule applies instead)
965 * Unary + and - are weird and wrong in fteqcc so we don't allow them
966 * parenthesis in expressions are allowed
967 * parameter lists on macros are errors
968 * No mathematical calculations are executed
970 static bool ftepp_if_expr(ftepp_t *ftepp, bool *out, double *value_out);
971 static bool ftepp_if_op(ftepp_t *ftepp)
973 ftepp->lex->flags.noops = false;
975 if (!ftepp_skipspace(ftepp))
977 ftepp->lex->flags.noops = true;
980 static bool ftepp_if_value(ftepp_t *ftepp, bool *out, double *value_out)
986 if (!ftepp_skipspace(ftepp))
989 while (ftepp->token == '!') {
992 if (!ftepp_skipspace(ftepp))
996 if (ftepp->token == TOKEN_OPERATOR && !strcmp(ftepp_tokval(ftepp), "-"))
1000 if (!ftepp_skipspace(ftepp))
1004 switch (ftepp->token) {
1006 case TOKEN_TYPENAME:
1008 if (!strcmp(ftepp_tokval(ftepp), "defined")) {
1010 if (!ftepp_skipspace(ftepp))
1012 if (ftepp->token != '(') {
1013 ftepp_error(ftepp, "`defined` keyword in #if requires a macro name in parenthesis");
1017 if (!ftepp_skipspace(ftepp))
1019 if (ftepp->token != TOKEN_IDENT &&
1020 ftepp->token != TOKEN_TYPENAME &&
1021 ftepp->token != TOKEN_KEYWORD)
1023 ftepp_error(ftepp, "defined() used on an unexpected token type");
1026 macro = ftepp_macro_find(ftepp, ftepp_tokval(ftepp));
1029 if (!ftepp_skipspace(ftepp))
1031 if (ftepp->token != ')') {
1032 ftepp_error(ftepp, "expected closing paren");
1038 macro = ftepp_macro_find(ftepp, ftepp_tokval(ftepp));
1039 if (!macro || !vec_size(macro->output)) {
1043 /* This does not expand recursively! */
1044 switch (macro->output[0]->token) {
1045 case TOKEN_INTCONST:
1046 *value_out = macro->output[0]->constval.i;
1047 *out = !!(macro->output[0]->constval.i);
1049 case TOKEN_FLOATCONST:
1050 *value_out = macro->output[0]->constval.f;
1051 *out = !!(macro->output[0]->constval.f);
1059 case TOKEN_STRINGCONST:
1063 case TOKEN_INTCONST:
1064 *value_out = ftepp->lex->tok.constval.i;
1065 *out = !!(ftepp->lex->tok.constval.i);
1067 case TOKEN_FLOATCONST:
1068 *value_out = ftepp->lex->tok.constval.f;
1069 *out = !!(ftepp->lex->tok.constval.f);
1074 if (!ftepp_if_expr(ftepp, out, value_out))
1076 if (ftepp->token != ')') {
1077 ftepp_error(ftepp, "expected closing paren in #if expression");
1083 ftepp_error(ftepp, "junk in #if: `%s` ...", ftepp_tokval(ftepp));
1084 if (OPTS_OPTION_BOOL(OPTION_DEBUG))
1085 ftepp_error(ftepp, "internal: token %i\n", ftepp->token);
1089 *value_out = -*value_out;
1092 *value_out = (*out ? 1 : 0);
1098 static bool ftepp_if_nextvalue(ftepp_t *ftepp, bool *out, double *value_out)
1100 if (!ftepp_next(ftepp))
1102 return ftepp_if_value(ftepp, out, value_out);
1106 static bool ftepp_if_expr(ftepp_t *ftepp, bool *out, double *value_out)
1108 if (!ftepp_if_value(ftepp, out, value_out))
1111 if (!ftepp_if_op(ftepp))
1114 if (ftepp->token == ')' || ftepp->token != TOKEN_OPERATOR)
1117 /* FTEQCC is all right-associative and no precedence here */
1118 if (!strcmp(ftepp_tokval(ftepp), "&&") ||
1119 !strcmp(ftepp_tokval(ftepp), "||"))
1122 char opc = ftepp_tokval(ftepp)[0];
1126 if (!ftepp_next(ftepp))
1128 if (!ftepp_if_expr(ftepp, &next, &nextvalue))
1132 *out = *out && next;
1134 *out = *out || next;
1136 *value_out = (*out ? 1 : 0);
1139 else if (!strcmp(ftepp_tokval(ftepp), "==") ||
1140 !strcmp(ftepp_tokval(ftepp), "!=") ||
1141 !strcmp(ftepp_tokval(ftepp), ">=") ||
1142 !strcmp(ftepp_tokval(ftepp), "<=") ||
1143 !strcmp(ftepp_tokval(ftepp), ">") ||
1144 !strcmp(ftepp_tokval(ftepp), "<"))
1147 const char opc0 = ftepp_tokval(ftepp)[0];
1148 const char opc1 = ftepp_tokval(ftepp)[1];
1151 if (!ftepp_next(ftepp))
1153 if (!ftepp_if_expr(ftepp, &next, &other))
1157 *out = (*value_out == other);
1158 else if (opc0 == '!')
1159 *out = (*value_out != other);
1160 else if (opc0 == '>') {
1161 if (opc1 == '=') *out = (*value_out >= other);
1162 else *out = (*value_out > other);
1164 else if (opc0 == '<') {
1165 if (opc1 == '=') *out = (*value_out <= other);
1166 else *out = (*value_out < other);
1168 *value_out = (*out ? 1 : 0);
1173 ftepp_error(ftepp, "junk after #if");
1178 static bool ftepp_if(ftepp_t *ftepp, ppcondition *cond)
1180 bool result = false;
1183 memset(cond, 0, sizeof(*cond));
1184 (void)ftepp_next(ftepp);
1186 if (!ftepp_skipspace(ftepp))
1188 if (ftepp->token == TOKEN_EOL) {
1189 ftepp_error(ftepp, "expected expression for #if-directive");
1193 if (!ftepp_if_expr(ftepp, &result, &dummy))
1201 * ifdef is rather simple
1203 static bool ftepp_ifdef(ftepp_t *ftepp, ppcondition *cond)
1206 memset(cond, 0, sizeof(*cond));
1207 (void)ftepp_next(ftepp);
1208 if (!ftepp_skipspace(ftepp))
1211 switch (ftepp->token) {
1213 case TOKEN_TYPENAME:
1215 macro = ftepp_macro_find(ftepp, ftepp_tokval(ftepp));
1218 ftepp_error(ftepp, "expected macro name");
1222 (void)ftepp_next(ftepp);
1223 if (!ftepp_skipspace(ftepp))
1225 /* relaxing this condition
1226 if (ftepp->token != TOKEN_EOL && ftepp->token != TOKEN_EOF) {
1227 ftepp_error(ftepp, "stray tokens after #ifdef");
1236 * undef is also simple
1238 static bool ftepp_undef(ftepp_t *ftepp)
1240 (void)ftepp_next(ftepp);
1241 if (!ftepp_skipspace(ftepp))
1244 if (ftepp->output_on) {
1245 switch (ftepp->token) {
1247 case TOKEN_TYPENAME:
1249 ftepp_macro_delete(ftepp, ftepp_tokval(ftepp));
1252 ftepp_error(ftepp, "expected macro name");
1257 (void)ftepp_next(ftepp);
1258 if (!ftepp_skipspace(ftepp))
1260 /* relaxing this condition
1261 if (ftepp->token != TOKEN_EOL && ftepp->token != TOKEN_EOF) {
1262 ftepp_error(ftepp, "stray tokens after #ifdef");
1269 /* Special unescape-string function which skips a leading quote
1270 * and stops at a quote, not just at \0
1272 static void unescape(const char *str, char *out) {
1274 while (*str && *str != '"') {
1278 case '\\': *out++ = *str; break;
1279 case '"': *out++ = *str; break;
1280 case 'a': *out++ = '\a'; break;
1281 case 'b': *out++ = '\b'; break;
1282 case 'r': *out++ = '\r'; break;
1283 case 'n': *out++ = '\n'; break;
1284 case 't': *out++ = '\t'; break;
1285 case 'f': *out++ = '\f'; break;
1286 case 'v': *out++ = '\v'; break;
1301 static char *ftepp_include_find_path(const char *file, const char *pathfile)
1304 char *filename = NULL;
1305 const char *last_slash;
1311 last_slash = strrchr(pathfile, '/');
1314 len = last_slash - pathfile;
1315 memcpy(vec_add(filename, len), pathfile, len);
1316 vec_push(filename, '/');
1320 memcpy(vec_add(filename, len+1), file, len);
1321 vec_last(filename) = 0;
1323 fp = fs_file_open(filename, "rb");
1332 static char *ftepp_include_find(ftepp_t *ftepp, const char *file)
1334 char *filename = NULL;
1336 filename = ftepp_include_find_path(file, ftepp->includename);
1338 filename = ftepp_include_find_path(file, ftepp->itemname);
1342 static bool ftepp_directive_warning(ftepp_t *ftepp) {
1343 char *message = NULL;
1345 if (!ftepp_skipspace(ftepp))
1348 /* handle the odd non string constant case so it works like C */
1349 if (ftepp->token != TOKEN_STRINGCONST) {
1351 vec_append(message, 8, "#warning");
1353 while (ftepp->token != TOKEN_EOL) {
1354 vec_append(message, strlen(ftepp_tokval(ftepp)), ftepp_tokval(ftepp));
1357 vec_push(message, '\0');
1358 if (ftepp->output_on)
1359 store = ftepp_warn(ftepp, WARN_CPP, message);
1366 if (!ftepp->output_on)
1369 unescape (ftepp_tokval(ftepp), ftepp_tokval(ftepp));
1370 return ftepp_warn(ftepp, WARN_CPP, "#warning %s", ftepp_tokval(ftepp));
1373 static void ftepp_directive_error(ftepp_t *ftepp) {
1374 char *message = NULL;
1376 if (!ftepp_skipspace(ftepp))
1379 /* handle the odd non string constant case so it works like C */
1380 if (ftepp->token != TOKEN_STRINGCONST) {
1381 vec_append(message, 6, "#error");
1383 while (ftepp->token != TOKEN_EOL) {
1384 vec_append(message, strlen(ftepp_tokval(ftepp)), ftepp_tokval(ftepp));
1387 vec_push(message, '\0');
1388 if (ftepp->output_on)
1389 ftepp_error(ftepp, message);
1394 if (!ftepp->output_on)
1397 unescape (ftepp_tokval(ftepp), ftepp_tokval(ftepp));
1398 ftepp_error(ftepp, "#error %s", ftepp_tokval(ftepp));
1401 static void ftepp_directive_message(ftepp_t *ftepp) {
1402 char *message = NULL;
1404 if (!ftepp_skipspace(ftepp))
1407 /* handle the odd non string constant case so it works like C */
1408 if (ftepp->token != TOKEN_STRINGCONST) {
1409 vec_append(message, 8, "#message");
1411 while (ftepp->token != TOKEN_EOL) {
1412 vec_append(message, strlen(ftepp_tokval(ftepp)), ftepp_tokval(ftepp));
1415 vec_push(message, '\0');
1416 if (ftepp->output_on)
1417 con_cprintmsg(ftepp->lex->tok.ctx, LVL_MSG, "message", message);
1422 if (!ftepp->output_on)
1425 unescape (ftepp_tokval(ftepp), ftepp_tokval(ftepp));
1426 con_cprintmsg(ftepp->lex->tok.ctx, LVL_MSG, "message", ftepp_tokval(ftepp));
1431 * FIXME: do we need/want a -I option?
1432 * FIXME: what about when dealing with files in subdirectories coming from a progs.src?
1434 static bool ftepp_include(ftepp_t *ftepp)
1436 lex_file *old_lexer = ftepp->lex;
1441 char *old_includename;
1443 (void)ftepp_next(ftepp);
1444 if (!ftepp_skipspace(ftepp))
1447 if (ftepp->token != TOKEN_STRINGCONST) {
1448 ftepp_error(ftepp, "expected filename to include");
1452 if (!ftepp->output_on) {
1457 ctx = ftepp_ctx(ftepp);
1459 unescape(ftepp_tokval(ftepp), ftepp_tokval(ftepp));
1461 ftepp_out(ftepp, "\n#pragma file(", false);
1462 ftepp_out(ftepp, ftepp_tokval(ftepp), false);
1463 ftepp_out(ftepp, ")\n#pragma line(1)\n", false);
1465 filename = ftepp_include_find(ftepp, ftepp_tokval(ftepp));
1467 ftepp_error(ftepp, "failed to open include file `%s`", ftepp_tokval(ftepp));
1470 inlex = lex_open(filename);
1472 ftepp_error(ftepp, "open failed on include file `%s`", filename);
1477 old_includename = ftepp->includename;
1478 ftepp->includename = filename;
1479 if (!ftepp_preprocess(ftepp)) {
1480 vec_free(ftepp->includename);
1481 ftepp->includename = old_includename;
1482 lex_close(ftepp->lex);
1483 ftepp->lex = old_lexer;
1486 vec_free(ftepp->includename);
1487 ftepp->includename = old_includename;
1488 lex_close(ftepp->lex);
1489 ftepp->lex = old_lexer;
1491 ftepp_out(ftepp, "\n#pragma file(", false);
1492 ftepp_out(ftepp, ctx.file, false);
1493 util_snprintf(lineno, sizeof(lineno), ")\n#pragma line(%lu)\n", (unsigned long)(ctx.line+1));
1494 ftepp_out(ftepp, lineno, false);
1497 (void)ftepp_next(ftepp);
1498 if (!ftepp_skipspace(ftepp))
1500 if (ftepp->token != TOKEN_EOL) {
1501 ftepp_error(ftepp, "stray tokens after #include");
1504 (void)ftepp_next(ftepp);
1509 /* Basic structure handlers */
1510 static bool ftepp_else_allowed(ftepp_t *ftepp)
1512 if (!vec_size(ftepp->conditions)) {
1513 ftepp_error(ftepp, "#else without #if");
1516 if (vec_last(ftepp->conditions).had_else) {
1517 ftepp_error(ftepp, "multiple #else for a single #if");
1523 static GMQCC_INLINE void ftepp_inmacro(ftepp_t *ftepp, const char *hash) {
1524 if (ftepp->in_macro)
1525 (void)!ftepp_warn(ftepp, WARN_DIRECTIVE_INMACRO, "`#%s` directive in macro", hash);
1528 static bool ftepp_hash(ftepp_t *ftepp)
1533 lex_ctx_t ctx = ftepp_ctx(ftepp);
1535 if (!ftepp_skipspace(ftepp))
1538 switch (ftepp->token) {
1541 case TOKEN_TYPENAME:
1542 if (!strcmp(ftepp_tokval(ftepp), "define")) {
1543 ftepp_inmacro(ftepp, "define");
1544 return ftepp_define(ftepp);
1546 else if (!strcmp(ftepp_tokval(ftepp), "undef")) {
1547 ftepp_inmacro(ftepp, "undef");
1548 return ftepp_undef(ftepp);
1550 else if (!strcmp(ftepp_tokval(ftepp), "ifdef")) {
1551 ftepp_inmacro(ftepp, "ifdef");
1552 if (!ftepp_ifdef(ftepp, &cond))
1554 cond.was_on = cond.on;
1555 vec_push(ftepp->conditions, cond);
1556 ftepp->output_on = ftepp->output_on && cond.on;
1559 else if (!strcmp(ftepp_tokval(ftepp), "ifndef")) {
1560 ftepp_inmacro(ftepp, "ifndef");
1561 if (!ftepp_ifdef(ftepp, &cond))
1564 cond.was_on = cond.on;
1565 vec_push(ftepp->conditions, cond);
1566 ftepp->output_on = ftepp->output_on && cond.on;
1569 else if (!strcmp(ftepp_tokval(ftepp), "elifdef")) {
1570 ftepp_inmacro(ftepp, "elifdef");
1571 if (!ftepp_else_allowed(ftepp))
1573 if (!ftepp_ifdef(ftepp, &cond))
1575 pc = &vec_last(ftepp->conditions);
1576 pc->on = !pc->was_on && cond.on;
1577 pc->was_on = pc->was_on || pc->on;
1578 ftepp_update_output_condition(ftepp);
1581 else if (!strcmp(ftepp_tokval(ftepp), "elifndef")) {
1582 ftepp_inmacro(ftepp, "elifndef");
1583 if (!ftepp_else_allowed(ftepp))
1585 if (!ftepp_ifdef(ftepp, &cond))
1588 pc = &vec_last(ftepp->conditions);
1589 pc->on = !pc->was_on && cond.on;
1590 pc->was_on = pc->was_on || pc->on;
1591 ftepp_update_output_condition(ftepp);
1594 else if (!strcmp(ftepp_tokval(ftepp), "elif")) {
1595 ftepp_inmacro(ftepp, "elif");
1596 if (!ftepp_else_allowed(ftepp))
1598 if (!ftepp_if(ftepp, &cond))
1600 pc = &vec_last(ftepp->conditions);
1601 pc->on = !pc->was_on && cond.on;
1602 pc->was_on = pc->was_on || pc->on;
1603 ftepp_update_output_condition(ftepp);
1606 else if (!strcmp(ftepp_tokval(ftepp), "if")) {
1607 ftepp_inmacro(ftepp, "if");
1608 if (!ftepp_if(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), "else")) {
1616 ftepp_inmacro(ftepp, "else");
1617 if (!ftepp_else_allowed(ftepp))
1619 pc = &vec_last(ftepp->conditions);
1620 pc->on = !pc->was_on;
1621 pc->had_else = true;
1623 ftepp_update_output_condition(ftepp);
1626 else if (!strcmp(ftepp_tokval(ftepp), "endif")) {
1627 ftepp_inmacro(ftepp, "endif");
1628 if (!vec_size(ftepp->conditions)) {
1629 ftepp_error(ftepp, "#endif without #if");
1632 vec_pop(ftepp->conditions);
1634 ftepp_update_output_condition(ftepp);
1637 else if (!strcmp(ftepp_tokval(ftepp), "include")) {
1638 ftepp_inmacro(ftepp, "include");
1639 return ftepp_include(ftepp);
1641 else if (!strcmp(ftepp_tokval(ftepp), "pragma")) {
1642 ftepp_out(ftepp, "#", false);
1645 else if (!strcmp(ftepp_tokval(ftepp), "warning")) {
1646 ftepp_directive_warning(ftepp);
1649 else if (!strcmp(ftepp_tokval(ftepp), "error")) {
1650 ftepp_directive_error(ftepp);
1653 else if (!strcmp(ftepp_tokval(ftepp), "message")) {
1654 ftepp_directive_message(ftepp);
1658 if (ftepp->output_on) {
1659 ftepp_error(ftepp, "unrecognized preprocessor directive: `%s`", ftepp_tokval(ftepp));
1666 /* break; never reached */
1668 ftepp_error(ftepp, "unexpected preprocessor token: `%s`", ftepp_tokval(ftepp));
1671 ftepp_errorat(ftepp, ctx, "empty preprocessor directive");
1674 ftepp_error(ftepp, "missing newline at end of file", ftepp_tokval(ftepp));
1677 /* Builtins! Don't forget the builtins! */
1678 case TOKEN_INTCONST:
1679 case TOKEN_FLOATCONST:
1680 ftepp_out(ftepp, "#", false);
1683 if (!ftepp_skipspace(ftepp))
1688 static bool ftepp_preprocess(ftepp_t *ftepp)
1691 bool newline = true;
1694 char *expand = NULL;
1696 ftepp->lex->flags.preprocessing = true;
1697 ftepp->lex->flags.mergelines = false;
1698 ftepp->lex->flags.noops = true;
1703 if (ftepp->token >= TOKEN_EOF)
1709 switch (ftepp->token) {
1712 case TOKEN_TYPENAME:
1713 /* is it a predef? */
1714 if (OPTS_FLAG(FTEPP_PREDEFS)) {
1715 char *(*predef)(ftepp_t*) = ftepp_predef(ftepp_tokval(ftepp));
1717 expand = predef(ftepp);
1718 ftepp_out (ftepp, expand, false);
1726 if (ftepp->output_on)
1727 macro = ftepp_macro_find(ftepp, ftepp_tokval(ftepp));
1732 ftepp_out(ftepp, ftepp_tokval(ftepp), false);
1736 if (!ftepp_macro_call(ftepp, macro))
1737 ftepp->token = TOKEN_ERROR;
1741 ftepp_out(ftepp, ftepp_tokval(ftepp), false);
1745 ftepp->lex->flags.mergelines = true;
1746 if (ftepp_next(ftepp) >= TOKEN_EOF) {
1747 ftepp_error(ftepp, "error in preprocessor directive");
1748 ftepp->token = TOKEN_ERROR;
1751 if (!ftepp_hash(ftepp))
1752 ftepp->token = TOKEN_ERROR;
1753 ftepp->lex->flags.mergelines = false;
1757 ftepp_out(ftepp, "\n", true);
1761 /* same as default but don't set newline=false */
1762 ftepp_out(ftepp, ftepp_tokval(ftepp), true);
1767 ftepp_out(ftepp, ftepp_tokval(ftepp), false);
1771 } while (!ftepp->errors && ftepp->token < TOKEN_EOF);
1773 /* force a 0 at the end but don't count it as added to the output */
1774 vec_push(ftepp->output_string, 0);
1775 vec_shrinkby(ftepp->output_string, 1);
1777 return (ftepp->token == TOKEN_EOF);
1780 /* Like in parser.c - files keep the previous state so we have one global
1781 * preprocessor. Except here we will want to warn about dangling #ifs.
1783 static bool ftepp_preprocess_done(ftepp_t *ftepp)
1786 if (vec_size(ftepp->conditions)) {
1787 if (ftepp_warn(ftepp, WARN_MULTIFILE_IF, "#if spanning multiple files, is this intended?"))
1790 lex_close(ftepp->lex);
1792 if (ftepp->itemname) {
1793 mem_d(ftepp->itemname);
1794 ftepp->itemname = NULL;
1799 bool ftepp_preprocess_file(ftepp_t *ftepp, const char *filename)
1801 ftepp->lex = lex_open(filename);
1802 ftepp->itemname = util_strdup(filename);
1804 con_out("failed to open file \"%s\"\n", filename);
1807 if (!ftepp_preprocess(ftepp))
1809 return ftepp_preprocess_done(ftepp);
1812 bool ftepp_preprocess_string(ftepp_t *ftepp, const char *name, const char *str)
1814 ftepp->lex = lex_open_string(str, strlen(str), name);
1815 ftepp->itemname = util_strdup(name);
1817 con_out("failed to create lexer for string \"%s\"\n", name);
1820 if (!ftepp_preprocess(ftepp))
1822 return ftepp_preprocess_done(ftepp);
1826 void ftepp_add_macro(ftepp_t *ftepp, const char *name, const char *value) {
1827 char *create = NULL;
1829 /* use saner path for empty macros */
1831 ftepp_add_define(ftepp, "__builtin__", name);
1835 vec_append(create, 8, "#define ");
1836 vec_append(create, strlen(name), name);
1837 vec_push (create, ' ');
1838 vec_append(create, strlen(value), value);
1839 vec_push (create, 0);
1841 ftepp_preprocess_string(ftepp, "__builtin__", create);
1845 ftepp_t *ftepp_create()
1852 ftepp = ftepp_new();
1856 memset(minor, 0, sizeof(minor));
1857 memset(major, 0, sizeof(major));
1859 /* set the right macro based on the selected standard */
1860 ftepp_add_define(ftepp, NULL, "GMQCC");
1861 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_FTEQCC) {
1862 ftepp_add_define(ftepp, NULL, "__STD_FTEQCC__");
1871 } else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_GMQCC) {
1872 ftepp_add_define(ftepp, NULL, "__STD_GMQCC__");
1873 util_snprintf(major, 32, "\"%d\"", GMQCC_VERSION_MAJOR);
1874 util_snprintf(minor, 32, "\"%d\"", GMQCC_VERSION_MINOR);
1875 } else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCCX) {
1876 ftepp_add_define(ftepp, NULL, "__STD_QCCX__");
1877 util_snprintf(major, 32, "\"%d\"", GMQCC_VERSION_MAJOR);
1878 util_snprintf(minor, 32, "\"%d\"", GMQCC_VERSION_MINOR);
1879 } else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
1880 ftepp_add_define(ftepp, NULL, "__STD_QCC__");
1891 ftepp_add_macro(ftepp, "__STD_VERSION_MINOR__", minor);
1892 ftepp_add_macro(ftepp, "__STD_VERSION_MAJOR__", major);
1895 * We're going to just make __NULL__ nil, which works for 60% of the
1896 * cases of __NULL_ for fteqcc.
1898 ftepp_add_macro(ftepp, "__NULL__", "nil");
1900 /* add all the math constants if they can be */
1901 for (i = 0; i < GMQCC_ARRAY_COUNT(ftepp_math_constants); i++)
1902 if (!ftepp_macro_find(ftepp, ftepp_math_constants[i][0]))
1903 ftepp_add_macro(ftepp, ftepp_math_constants[i][0], ftepp_math_constants[i][1]);
1908 void ftepp_add_define(ftepp_t *ftepp, const char *source, const char *name)
1911 lex_ctx_t ctx = { "__builtin__", 0, 0 };
1913 macro = ppmacro_new(ctx, name);
1914 /*vec_push(ftepp->macros, macro);*/
1915 util_htset(ftepp->macros, name, macro);
1918 const char *ftepp_get(ftepp_t *ftepp)
1920 return ftepp->output_string;
1923 void ftepp_flush(ftepp_t *ftepp)
1925 ftepp_flush_do(ftepp);
1928 void ftepp_finish(ftepp_t *ftepp)
1932 ftepp_delete(ftepp);