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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;
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 if (OPTS_FLAG(FTEPP_MATHDEFS)) {
534 for (i = 0; i < GMQCC_ARRAY_COUNT(ftepp_math_constants); i++) {
535 if (!strcmp(ftepp_math_constants[i][0], ftepp_tokval(ftepp))) {
542 macro = ftepp_macro_find(ftepp, ftepp_tokval(ftepp));
544 if (OPTS_FLAG(FTEPP_MATHDEFS)) {
545 /* user defined ones take precedence */
546 if (macro && mathconstant) {
547 ftepp_macro_delete(ftepp, ftepp_tokval(ftepp));
552 if (macro && ftepp->output_on) {
553 if (ftepp_warn(ftepp, WARN_CPP, "redefining `%s`", ftepp_tokval(ftepp)))
555 ftepp_macro_delete(ftepp, ftepp_tokval(ftepp));
557 macro = ppmacro_new(ftepp_ctx(ftepp), ftepp_tokval(ftepp));
560 ftepp_error(ftepp, "expected macro name");
564 (void)ftepp_next(ftepp);
566 if (ftepp->token == '(') {
567 macro->has_params = true;
568 if (!ftepp_define_params(ftepp, macro)) {
569 ppmacro_delete(macro);
574 if (!ftepp_skipspace(ftepp)) {
575 ppmacro_delete(macro);
579 if (!ftepp_define_body(ftepp, macro)) {
580 ppmacro_delete(macro);
584 if (ftepp->output_on)
585 util_htset(ftepp->macros, macro->name, (void*)macro);
587 ppmacro_delete(macro);
590 for (; l < ftepp_ctx(ftepp).line; ++l)
591 ftepp_out(ftepp, "\n", true);
596 * When a macro is used we have to handle parameters as well
597 * as special-concatenation via ## or stringification via #
599 * Note: parenthesis can nest, so FOO((a),b) is valid, but only
600 * this kind of parens. Curly braces or [] don't count towards the
607 static void macroparam_clean(macroparam *self)
610 for (i = 0; i < vec_size(self->tokens); ++i)
611 pptoken_delete(self->tokens[i]);
612 vec_free(self->tokens);
615 /* need to leave the last token up */
616 static bool ftepp_macro_call_params(ftepp_t *ftepp, macroparam **out_params)
618 macroparam *params = NULL;
624 if (!ftepp_skipallwhite(ftepp))
626 while (ftepp->token != ')') {
628 if (!ftepp_skipallwhite(ftepp))
630 while (parens || ftepp->token != ',') {
631 if (ftepp->token == '(')
633 else if (ftepp->token == ')') {
638 ptok = pptoken_make(ftepp);
639 vec_push(mp.tokens, ptok);
640 if (ftepp_next(ftepp) >= TOKEN_EOF) {
641 ftepp_error(ftepp, "unexpected end of file in macro call");
645 vec_push(params, mp);
647 if (ftepp->token == ')')
649 if (ftepp->token != ',') {
650 ftepp_error(ftepp, "expected closing paren or comma in macro call");
653 if (ftepp_next(ftepp) >= TOKEN_EOF) {
654 ftepp_error(ftepp, "unexpected end of file in macro call");
658 *out_params = params;
663 macroparam_clean(&mp);
664 for (i = 0; i < vec_size(params); ++i)
665 macroparam_clean(¶ms[i]);
670 static bool macro_params_find(ppmacro *macro, const char *name, size_t *idx)
673 for (i = 0; i < vec_size(macro->params); ++i) {
674 if (!strcmp(macro->params[i], name)) {
682 static void ftepp_stringify_token(ftepp_t *ftepp, pptoken *token)
687 switch (token->token) {
688 case TOKEN_STRINGCONST:
691 /* in preprocessor mode strings already are string,
692 * so we don't get actual newline bytes here.
693 * Still need to escape backslashes and quotes.
696 case '\\': ftepp_out(ftepp, "\\\\", false); break;
697 case '"': ftepp_out(ftepp, "\\\"", false); break;
700 ftepp_out(ftepp, chs, false);
707 ftepp_out(ftepp, " ", false);
710 ftepp_out(ftepp, "\\n", false);
713 ftepp_out(ftepp, token->value, false);
718 static void ftepp_stringify(ftepp_t *ftepp, macroparam *param)
721 ftepp_out(ftepp, "\"", false);
722 for (i = 0; i < vec_size(param->tokens); ++i)
723 ftepp_stringify_token(ftepp, param->tokens[i]);
724 ftepp_out(ftepp, "\"", false);
727 static void ftepp_recursion_header(ftepp_t *ftepp)
729 ftepp_out(ftepp, "\n#pragma push(line)\n", false);
732 static void ftepp_recursion_footer(ftepp_t *ftepp)
734 ftepp_out(ftepp, "\n#pragma pop(line)\n", false);
737 static void ftepp_param_out(ftepp_t *ftepp, macroparam *param)
741 for (i = 0; i < vec_size(param->tokens); ++i) {
742 out = param->tokens[i];
743 if (out->token == TOKEN_EOL)
744 ftepp_out(ftepp, "\n", false);
746 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 = fs_file_open(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 *old_includename;
1460 (void)ftepp_next(ftepp);
1461 if (!ftepp_skipspace(ftepp))
1464 if (ftepp->token != TOKEN_STRINGCONST) {
1465 ftepp_error(ftepp, "expected filename to include");
1469 if (!ftepp->output_on) {
1474 ctx = ftepp_ctx(ftepp);
1476 unescape(ftepp_tokval(ftepp), ftepp_tokval(ftepp));
1478 ftepp_out(ftepp, "\n#pragma file(", false);
1479 ftepp_out(ftepp, ftepp_tokval(ftepp), false);
1480 ftepp_out(ftepp, ")\n#pragma line(1)\n", false);
1482 filename = ftepp_include_find(ftepp, ftepp_tokval(ftepp));
1484 ftepp_error(ftepp, "failed to open include file `%s`", ftepp_tokval(ftepp));
1487 inlex = lex_open(filename);
1489 ftepp_error(ftepp, "open failed on include file `%s`", filename);
1494 old_includename = ftepp->includename;
1495 ftepp->includename = filename;
1496 if (!ftepp_preprocess(ftepp)) {
1497 vec_free(ftepp->includename);
1498 ftepp->includename = old_includename;
1499 lex_close(ftepp->lex);
1500 ftepp->lex = old_lexer;
1503 vec_free(ftepp->includename);
1504 ftepp->includename = old_includename;
1505 lex_close(ftepp->lex);
1506 ftepp->lex = old_lexer;
1508 ftepp_out(ftepp, "\n#pragma file(", false);
1509 ftepp_out(ftepp, ctx.file, false);
1510 util_snprintf(lineno, sizeof(lineno), ")\n#pragma line(%lu)\n", (unsigned long)(ctx.line+1));
1511 ftepp_out(ftepp, lineno, false);
1514 (void)ftepp_next(ftepp);
1515 if (!ftepp_skipspace(ftepp))
1517 if (ftepp->token != TOKEN_EOL) {
1518 ftepp_error(ftepp, "stray tokens after #include");
1521 (void)ftepp_next(ftepp);
1526 /* Basic structure handlers */
1527 static bool ftepp_else_allowed(ftepp_t *ftepp)
1529 if (!vec_size(ftepp->conditions)) {
1530 ftepp_error(ftepp, "#else without #if");
1533 if (vec_last(ftepp->conditions).had_else) {
1534 ftepp_error(ftepp, "multiple #else for a single #if");
1540 static GMQCC_INLINE void ftepp_inmacro(ftepp_t *ftepp, const char *hash) {
1541 if (ftepp->in_macro)
1542 (void)!ftepp_warn(ftepp, WARN_DIRECTIVE_INMACRO, "`#%s` directive in macro", hash);
1545 static bool ftepp_hash(ftepp_t *ftepp)
1550 lex_ctx_t ctx = ftepp_ctx(ftepp);
1552 if (!ftepp_skipspace(ftepp))
1555 switch (ftepp->token) {
1558 case TOKEN_TYPENAME:
1559 if (!strcmp(ftepp_tokval(ftepp), "define")) {
1560 ftepp_inmacro(ftepp, "define");
1561 return ftepp_define(ftepp);
1563 else if (!strcmp(ftepp_tokval(ftepp), "undef")) {
1564 ftepp_inmacro(ftepp, "undef");
1565 return ftepp_undef(ftepp);
1567 else if (!strcmp(ftepp_tokval(ftepp), "ifdef")) {
1568 ftepp_inmacro(ftepp, "ifdef");
1569 if (!ftepp_ifdef(ftepp, &cond))
1571 cond.was_on = cond.on;
1572 vec_push(ftepp->conditions, cond);
1573 ftepp->output_on = ftepp->output_on && cond.on;
1576 else if (!strcmp(ftepp_tokval(ftepp), "ifndef")) {
1577 ftepp_inmacro(ftepp, "ifndef");
1578 if (!ftepp_ifdef(ftepp, &cond))
1581 cond.was_on = cond.on;
1582 vec_push(ftepp->conditions, cond);
1583 ftepp->output_on = ftepp->output_on && cond.on;
1586 else if (!strcmp(ftepp_tokval(ftepp), "elifdef")) {
1587 ftepp_inmacro(ftepp, "elifdef");
1588 if (!ftepp_else_allowed(ftepp))
1590 if (!ftepp_ifdef(ftepp, &cond))
1592 pc = &vec_last(ftepp->conditions);
1593 pc->on = !pc->was_on && cond.on;
1594 pc->was_on = pc->was_on || pc->on;
1595 ftepp_update_output_condition(ftepp);
1598 else if (!strcmp(ftepp_tokval(ftepp), "elifndef")) {
1599 ftepp_inmacro(ftepp, "elifndef");
1600 if (!ftepp_else_allowed(ftepp))
1602 if (!ftepp_ifdef(ftepp, &cond))
1605 pc = &vec_last(ftepp->conditions);
1606 pc->on = !pc->was_on && cond.on;
1607 pc->was_on = pc->was_on || pc->on;
1608 ftepp_update_output_condition(ftepp);
1611 else if (!strcmp(ftepp_tokval(ftepp), "elif")) {
1612 ftepp_inmacro(ftepp, "elif");
1613 if (!ftepp_else_allowed(ftepp))
1615 if (!ftepp_if(ftepp, &cond))
1617 pc = &vec_last(ftepp->conditions);
1618 pc->on = !pc->was_on && cond.on;
1619 pc->was_on = pc->was_on || pc->on;
1620 ftepp_update_output_condition(ftepp);
1623 else if (!strcmp(ftepp_tokval(ftepp), "if")) {
1624 ftepp_inmacro(ftepp, "if");
1625 if (!ftepp_if(ftepp, &cond))
1627 cond.was_on = cond.on;
1628 vec_push(ftepp->conditions, cond);
1629 ftepp->output_on = ftepp->output_on && cond.on;
1632 else if (!strcmp(ftepp_tokval(ftepp), "else")) {
1633 ftepp_inmacro(ftepp, "else");
1634 if (!ftepp_else_allowed(ftepp))
1636 pc = &vec_last(ftepp->conditions);
1637 pc->on = !pc->was_on;
1638 pc->had_else = true;
1640 ftepp_update_output_condition(ftepp);
1643 else if (!strcmp(ftepp_tokval(ftepp), "endif")) {
1644 ftepp_inmacro(ftepp, "endif");
1645 if (!vec_size(ftepp->conditions)) {
1646 ftepp_error(ftepp, "#endif without #if");
1649 vec_pop(ftepp->conditions);
1651 ftepp_update_output_condition(ftepp);
1654 else if (!strcmp(ftepp_tokval(ftepp), "include")) {
1655 ftepp_inmacro(ftepp, "include");
1656 return ftepp_include(ftepp);
1658 else if (!strcmp(ftepp_tokval(ftepp), "pragma")) {
1659 ftepp_out(ftepp, "#", false);
1662 else if (!strcmp(ftepp_tokval(ftepp), "warning")) {
1663 ftepp_directive_warning(ftepp);
1666 else if (!strcmp(ftepp_tokval(ftepp), "error")) {
1667 ftepp_directive_error(ftepp);
1670 else if (!strcmp(ftepp_tokval(ftepp), "message")) {
1671 ftepp_directive_message(ftepp);
1675 if (ftepp->output_on) {
1676 ftepp_error(ftepp, "unrecognized preprocessor directive: `%s`", ftepp_tokval(ftepp));
1683 /* break; never reached */
1685 ftepp_error(ftepp, "unexpected preprocessor token: `%s`", ftepp_tokval(ftepp));
1688 ftepp_errorat(ftepp, ctx, "empty preprocessor directive");
1691 ftepp_error(ftepp, "missing newline at end of file", ftepp_tokval(ftepp));
1694 /* Builtins! Don't forget the builtins! */
1695 case TOKEN_INTCONST:
1696 case TOKEN_FLOATCONST:
1697 ftepp_out(ftepp, "#", false);
1700 if (!ftepp_skipspace(ftepp))
1705 static bool ftepp_preprocess(ftepp_t *ftepp)
1708 bool newline = true;
1711 char *expand = NULL;
1713 ftepp->lex->flags.preprocessing = true;
1714 ftepp->lex->flags.mergelines = false;
1715 ftepp->lex->flags.noops = true;
1720 if (ftepp->token >= TOKEN_EOF)
1726 switch (ftepp->token) {
1729 case TOKEN_TYPENAME:
1730 /* is it a predef? */
1731 if (OPTS_FLAG(FTEPP_PREDEFS)) {
1732 char *(*predef)(ftepp_t*) = ftepp_predef(ftepp_tokval(ftepp));
1734 expand = predef(ftepp);
1735 ftepp_out (ftepp, expand, false);
1743 if (ftepp->output_on)
1744 macro = ftepp_macro_find(ftepp, ftepp_tokval(ftepp));
1749 ftepp_out(ftepp, ftepp_tokval(ftepp), false);
1753 if (!ftepp_macro_call(ftepp, macro))
1754 ftepp->token = TOKEN_ERROR;
1758 ftepp_out(ftepp, ftepp_tokval(ftepp), false);
1762 ftepp->lex->flags.mergelines = true;
1763 if (ftepp_next(ftepp) >= TOKEN_EOF) {
1764 ftepp_error(ftepp, "error in preprocessor directive");
1765 ftepp->token = TOKEN_ERROR;
1768 if (!ftepp_hash(ftepp))
1769 ftepp->token = TOKEN_ERROR;
1770 ftepp->lex->flags.mergelines = false;
1774 ftepp_out(ftepp, "\n", true);
1778 /* same as default but don't set newline=false */
1779 ftepp_out(ftepp, ftepp_tokval(ftepp), true);
1784 ftepp_out(ftepp, ftepp_tokval(ftepp), false);
1788 } while (!ftepp->errors && ftepp->token < TOKEN_EOF);
1790 /* force a 0 at the end but don't count it as added to the output */
1791 vec_push(ftepp->output_string, 0);
1792 vec_shrinkby(ftepp->output_string, 1);
1794 return (ftepp->token == TOKEN_EOF);
1797 /* Like in parser.c - files keep the previous state so we have one global
1798 * preprocessor. Except here we will want to warn about dangling #ifs.
1800 static bool ftepp_preprocess_done(ftepp_t *ftepp)
1803 if (vec_size(ftepp->conditions)) {
1804 if (ftepp_warn(ftepp, WARN_MULTIFILE_IF, "#if spanning multiple files, is this intended?"))
1807 lex_close(ftepp->lex);
1809 if (ftepp->itemname) {
1810 mem_d(ftepp->itemname);
1811 ftepp->itemname = NULL;
1816 bool ftepp_preprocess_file(ftepp_t *ftepp, const char *filename)
1818 ftepp->lex = lex_open(filename);
1819 ftepp->itemname = util_strdup(filename);
1821 con_out("failed to open file \"%s\"\n", filename);
1824 if (!ftepp_preprocess(ftepp))
1826 return ftepp_preprocess_done(ftepp);
1829 bool ftepp_preprocess_string(ftepp_t *ftepp, const char *name, const char *str)
1831 ftepp->lex = lex_open_string(str, strlen(str), name);
1832 ftepp->itemname = util_strdup(name);
1834 con_out("failed to create lexer for string \"%s\"\n", name);
1837 if (!ftepp_preprocess(ftepp))
1839 return ftepp_preprocess_done(ftepp);
1843 void ftepp_add_macro(ftepp_t *ftepp, const char *name, const char *value) {
1844 char *create = NULL;
1846 /* use saner path for empty macros */
1848 ftepp_add_define(ftepp, "__builtin__", name);
1852 vec_append(create, 8, "#define ");
1853 vec_append(create, strlen(name), name);
1854 vec_push (create, ' ');
1855 vec_append(create, strlen(value), value);
1856 vec_push (create, 0);
1858 ftepp_preprocess_string(ftepp, "__builtin__", create);
1862 ftepp_t *ftepp_create()
1869 ftepp = ftepp_new();
1873 memset(minor, 0, sizeof(minor));
1874 memset(major, 0, sizeof(major));
1876 /* set the right macro based on the selected standard */
1877 ftepp_add_define(ftepp, NULL, "GMQCC");
1878 if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_FTEQCC) {
1879 ftepp_add_define(ftepp, NULL, "__STD_FTEQCC__");
1888 } else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_GMQCC) {
1889 ftepp_add_define(ftepp, NULL, "__STD_GMQCC__");
1890 util_snprintf(major, 32, "\"%d\"", GMQCC_VERSION_MAJOR);
1891 util_snprintf(minor, 32, "\"%d\"", GMQCC_VERSION_MINOR);
1892 } else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCCX) {
1893 ftepp_add_define(ftepp, NULL, "__STD_QCCX__");
1894 util_snprintf(major, 32, "\"%d\"", GMQCC_VERSION_MAJOR);
1895 util_snprintf(minor, 32, "\"%d\"", GMQCC_VERSION_MINOR);
1896 } else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) {
1897 ftepp_add_define(ftepp, NULL, "__STD_QCC__");
1908 ftepp_add_macro(ftepp, "__STD_VERSION_MINOR__", minor);
1909 ftepp_add_macro(ftepp, "__STD_VERSION_MAJOR__", major);
1912 * We're going to just make __NULL__ nil, which works for 60% of the
1913 * cases of __NULL_ for fteqcc.
1915 ftepp_add_macro(ftepp, "__NULL__", "nil");
1917 /* add all the math constants if they can be */
1918 if (OPTS_FLAG(FTEPP_MATHDEFS)) {
1919 for (i = 0; i < GMQCC_ARRAY_COUNT(ftepp_math_constants); i++)
1920 if (!ftepp_macro_find(ftepp, ftepp_math_constants[i][0]))
1921 ftepp_add_macro(ftepp, ftepp_math_constants[i][0], ftepp_math_constants[i][1]);
1927 void ftepp_add_define(ftepp_t *ftepp, const char *source, const char *name)
1930 lex_ctx_t ctx = { "__builtin__", 0, 0 };
1932 macro = ppmacro_new(ctx, name);
1933 /*vec_push(ftepp->macros, macro);*/
1934 util_htset(ftepp->macros, name, macro);
1937 const char *ftepp_get(ftepp_t *ftepp)
1939 return ftepp->output_string;
1942 void ftepp_flush(ftepp_t *ftepp)
1944 ftepp_flush_do(ftepp);
1947 void ftepp_finish(ftepp_t *ftepp)
1951 ftepp_delete(ftepp);