2 52afe358 2022-12-17 op * Copyright (c) 2022 Omar Polo <op@openbsd.org>
3 bff58270 2022-09-19 op * Copyright (c) 2007-2016 Reyk Floeter <reyk@openbsd.org>
4 bff58270 2022-09-19 op * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
5 bff58270 2022-09-19 op * Copyright (c) 2004 Ryan McBride <mcbride@openbsd.org>
6 bff58270 2022-09-19 op * Copyright (c) 2002, 2003, 2004 Henning Brauer <henning@openbsd.org>
7 bff58270 2022-09-19 op * Copyright (c) 2001 Markus Friedl. All rights reserved.
8 bff58270 2022-09-19 op * Copyright (c) 2001 Daniel Hartmeier. All rights reserved.
9 bff58270 2022-09-19 op * Copyright (c) 2001 Theo de Raadt. All rights reserved.
11 bff58270 2022-09-19 op * Permission to use, copy, modify, and distribute this software for any
12 bff58270 2022-09-19 op * purpose with or without fee is hereby granted, provided that the above
13 bff58270 2022-09-19 op * copyright notice and this permission notice appear in all copies.
15 bff58270 2022-09-19 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
16 bff58270 2022-09-19 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
17 bff58270 2022-09-19 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
18 bff58270 2022-09-19 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19 bff58270 2022-09-19 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
20 bff58270 2022-09-19 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
21 bff58270 2022-09-19 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
26 bff58270 2022-09-19 op #include <sys/queue.h>
28 bff58270 2022-09-19 op #include <ctype.h>
29 bff58270 2022-09-19 op #include <err.h>
30 bff58270 2022-09-19 op #include <stdio.h>
31 bff58270 2022-09-19 op #include <stdlib.h>
32 bff58270 2022-09-19 op #include <stdarg.h>
33 bff58270 2022-09-19 op #include <stdint.h>
34 bff58270 2022-09-19 op #include <string.h>
35 bff58270 2022-09-19 op #include <unistd.h>
37 bff58270 2022-09-19 op #ifndef nitems
38 bff58270 2022-09-19 op #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
41 bff58270 2022-09-19 op TAILQ_HEAD(files, file) files = TAILQ_HEAD_INITIALIZER(files);
42 bff58270 2022-09-19 op static struct file {
43 bff58270 2022-09-19 op TAILQ_ENTRY(file) entry;
46 bff58270 2022-09-19 op size_t ungetpos;
47 bff58270 2022-09-19 op size_t ungetsize;
48 8eb6aff8 2022-09-30 op unsigned char *ungetbuf;
49 bff58270 2022-09-19 op int eof_reached;
52 bff58270 2022-09-19 op } *file, *topfile;
53 14c31a43 2022-11-25 op int parse(FILE *, const char *);
54 bff58270 2022-09-19 op struct file *pushfile(const char *, int);
55 bff58270 2022-09-19 op int popfile(void);
56 bff58270 2022-09-19 op int yyparse(void);
57 bff58270 2022-09-19 op int yylex(void);
58 bff58270 2022-09-19 op int yyerror(const char *, ...)
59 bff58270 2022-09-19 op __attribute__((__format__ (printf, 1, 2)))
60 bff58270 2022-09-19 op __attribute__((__nonnull__ (1)));
61 bff58270 2022-09-19 op int kw_cmp(const void *, const void *);
62 bff58270 2022-09-19 op int lookup(char *);
63 bff58270 2022-09-19 op int igetc(void);
64 bff58270 2022-09-19 op int lgetc(int);
65 bff58270 2022-09-19 op void lungetc(int);
66 bff58270 2022-09-19 op int findeol(void);
68 bff58270 2022-09-19 op void dbg(void);
69 bff58270 2022-09-19 op void printq(const char *);
71 bff58270 2022-09-19 op extern int nodebug;
73 14c31a43 2022-11-25 op static FILE *fp;
75 bff58270 2022-09-19 op static int block;
76 bff58270 2022-09-19 op static int in_define;
77 bff58270 2022-09-19 op static int errors;
78 9a90a3d1 2022-09-29 op static int lastline = -1;
80 bff58270 2022-09-19 op typedef struct {
89 9c75d045 2022-10-03 op %token DEFINE ELSE END ERROR FINALLY FOR IF INCLUDE PRINTF
90 3e8b34ba 2023-01-07 op %token RENDER TQFOREACH UNSAFE URLESCAPE WHILE
91 bff58270 2022-09-19 op %token <v.string> STRING
92 bff58270 2022-09-19 op %type <v.string> string
93 6125bd61 2022-09-29 op %type <v.string> stringy
97 bff58270 2022-09-19 op grammar : /* empty */
98 bff58270 2022-09-19 op | grammar include
99 bff58270 2022-09-19 op | grammar verbatim
100 bff58270 2022-09-19 op | grammar block
101 bff58270 2022-09-19 op | grammar error { file->errors++; }
104 bff58270 2022-09-19 op include : INCLUDE STRING {
105 bff58270 2022-09-19 op struct file *nfile;
107 bff58270 2022-09-19 op if ((nfile = pushfile($2, 0)) == NULL) {
108 bff58270 2022-09-19 op yyerror("failed to include file %s", $2);
114 bff58270 2022-09-19 op file = nfile;
115 bff58270 2022-09-19 op lungetc('\n');
119 bff58270 2022-09-19 op verbatim : '!' verbatim1 '!' {
120 bff58270 2022-09-19 op if (in_define) {
121 bff58270 2022-09-19 op /* TODO: check template status and exit in case */
126 bff58270 2022-09-19 op verbatim1 : /* empty */
127 bff58270 2022-09-19 op | verbatim1 STRING {
128 bff58270 2022-09-19 op if (*$2 != '\0') {
130 14c31a43 2022-11-25 op fprintf(fp, "%s\n", $2);
136 bff58270 2022-09-19 op verbatims : /* empty */
137 bff58270 2022-09-19 op | verbatims verbatim
140 bff58270 2022-09-19 op raw : STRING {
142 14c31a43 2022-11-25 op fprintf(fp, "if ((tp_ret = tp->tp_puts(tp, ");
144 14c31a43 2022-11-25 op fputs(")) == -1) goto err;\n", fp);
150 bff58270 2022-09-19 op block : define body end {
151 14c31a43 2022-11-25 op fputs("err:\n", fp);
152 14c31a43 2022-11-25 op fputs("return tp_ret;\n", fp);
153 14c31a43 2022-11-25 op fputs("}\n", fp);
154 bff58270 2022-09-19 op in_define = 0;
156 bff58270 2022-09-19 op | define body finally end {
157 14c31a43 2022-11-25 op fputs("return tp_ret;\n", fp);
158 14c31a43 2022-11-25 op fputs("}\n", fp);
159 bff58270 2022-09-19 op in_define = 0;
163 bff58270 2022-09-19 op define : '{' DEFINE string '}' {
164 bff58270 2022-09-19 op in_define = 1;
167 14c31a43 2022-11-25 op fprintf(fp, "int\n%s\n{\n", $3);
168 14c31a43 2022-11-25 op fputs("int tp_ret = 0;\n", fp);
174 bff58270 2022-09-19 op body : /* empty */
175 bff58270 2022-09-19 op | body verbatim
177 bff58270 2022-09-19 op | body special
180 bff58270 2022-09-19 op special : '{' RENDER string '}' {
182 14c31a43 2022-11-25 op fprintf(fp, "if ((tp_ret = %s) == -1) goto err;\n",
187 14c31a43 2022-11-25 op | if body endif { fputs("}\n", fp); }
189 bff58270 2022-09-19 op | '{' string '|' UNSAFE '}' {
192 14c31a43 2022-11-25 op "if ((tp_ret = tp->tp_puts(tp, %s)) == -1)\n",
194 14c31a43 2022-11-25 op fputs("goto err;\n", fp);
197 bff58270 2022-09-19 op | '{' string '|' URLESCAPE '}' {
200 14c31a43 2022-11-25 op "if ((tp_ret = tp_urlescape(tp, %s)) == -1)\n",
202 14c31a43 2022-11-25 op fputs("goto err;\n", fp);
205 bff58270 2022-09-19 op | '{' string '}' {
208 14c31a43 2022-11-25 op "if ((tp_ret = tp->tp_escape(tp, %s)) == -1)\n",
210 14c31a43 2022-11-25 op fputs("goto err;\n", fp);
215 83e0f74d 2022-09-29 op printf : '{' PRINTF {
217 14c31a43 2022-11-25 op fprintf(fp, "if (asprintf(&tp->tp_tmp, ");
218 83e0f74d 2022-09-29 op } printfargs '}' {
219 14c31a43 2022-11-25 op fputs(") == -1)\n", fp);
220 14c31a43 2022-11-25 op fputs("goto err;\n", fp);
221 14c31a43 2022-11-25 op fputs("if ((tp_ret = tp->tp_escape(tp, tp->tp_tmp)) "
222 14c31a43 2022-11-25 op "== -1)\n", fp);
223 14c31a43 2022-11-25 op fputs("goto err;\n", fp);
224 14c31a43 2022-11-25 op fputs("free(tp->tp_tmp);\n", fp);
225 14c31a43 2022-11-25 op fputs("tp->tp_tmp = NULL;\n", fp);
229 83e0f74d 2022-09-29 op printfargs : /* empty */
230 83e0f74d 2022-09-29 op | printfargs STRING {
231 14c31a43 2022-11-25 op fprintf(fp, " %s", $2);
236 6125bd61 2022-09-29 op if : '{' IF stringy '}' {
238 14c31a43 2022-11-25 op fprintf(fp, "if (%s) {\n", $3);
244 bff58270 2022-09-19 op | else body end
245 bff58270 2022-09-19 op | elsif body endif
248 6125bd61 2022-09-29 op elsif : '{' ELSE IF stringy '}' {
250 14c31a43 2022-11-25 op fprintf(fp, "} else if (%s) {\n", $4);
255 bff58270 2022-09-19 op else : '{' ELSE '}' {
257 14c31a43 2022-11-25 op fputs("} else {\n", fp);
261 9c75d045 2022-10-03 op loop : '{' FOR stringy '}' {
262 14c31a43 2022-11-25 op fprintf(fp, "for (%s) {\n", $3);
265 14c31a43 2022-11-25 op fputs("}\n", fp);
267 9c75d045 2022-10-03 op | '{' TQFOREACH STRING STRING STRING '}' {
268 14c31a43 2022-11-25 op fprintf(fp, "TAILQ_FOREACH(%s, %s, %s) {\n",
274 14c31a43 2022-11-25 op fputs("}\n", fp);
276 3e8b34ba 2023-01-07 op | '{' WHILE stringy '}' {
277 3e8b34ba 2023-01-07 op fprintf(fp, "while (%s) {\n", $3);
280 3e8b34ba 2023-01-07 op fputs("}\n", fp);
284 bff58270 2022-09-19 op end : '{' END '}'
287 bff58270 2022-09-19 op finally : '{' FINALLY '}' {
289 14c31a43 2022-11-25 op fputs("err:\n", fp);
293 bff58270 2022-09-19 op string : STRING string {
294 bff58270 2022-09-19 op if (asprintf(&$$, "%s %s", $1, $2) == -1)
295 bff58270 2022-09-19 op err(1, "asprintf");
302 6125bd61 2022-09-29 op stringy : STRING
303 6125bd61 2022-09-29 op | STRING stringy {
304 6125bd61 2022-09-29 op if (asprintf(&$$, "%s %s", $1, $2) == -1)
305 6125bd61 2022-09-29 op err(1, "asprintf");
309 6125bd61 2022-09-29 op | '|' stringy {
310 6125bd61 2022-09-29 op if (asprintf(&$$, "|%s", $2) == -1)
311 6125bd61 2022-09-29 op err(1, "asprintf");
318 bff58270 2022-09-19 op struct keywords {
319 bff58270 2022-09-19 op const char *k_name;
324 bff58270 2022-09-19 op yyerror(const char *fmt, ...)
329 bff58270 2022-09-19 op file->errors++;
330 bff58270 2022-09-19 op va_start(ap, fmt);
331 bff58270 2022-09-19 op if (vasprintf(&msg, fmt, ap) == -1)
332 bff58270 2022-09-19 op err(1, "yyerror vasprintf");
334 bff58270 2022-09-19 op fprintf(stderr, "%s:%d: %s\n", file->name, yylval.lineno, msg);
340 bff58270 2022-09-19 op kw_cmp(const void *k, const void *e)
342 bff58270 2022-09-19 op return (strcmp(k, ((const struct keywords *)e)->k_name));
346 bff58270 2022-09-19 op lookup(char *s)
348 bff58270 2022-09-19 op /* this has to be sorted always */
349 bff58270 2022-09-19 op static const struct keywords keywords[] = {
350 bff58270 2022-09-19 op { "define", DEFINE },
351 bff58270 2022-09-19 op { "else", ELSE },
352 bff58270 2022-09-19 op { "end", END },
353 bff58270 2022-09-19 op { "finally", FINALLY },
354 9c75d045 2022-10-03 op { "for", FOR },
355 bff58270 2022-09-19 op { "if", IF },
356 bff58270 2022-09-19 op { "include", INCLUDE },
357 83e0f74d 2022-09-29 op { "printf", PRINTF },
358 bff58270 2022-09-19 op { "render", RENDER },
359 bff58270 2022-09-19 op { "tailq-foreach", TQFOREACH },
360 bff58270 2022-09-19 op { "unsafe", UNSAFE },
361 bff58270 2022-09-19 op { "urlescape", URLESCAPE },
362 3e8b34ba 2023-01-07 op { "while", WHILE },
364 bff58270 2022-09-19 op const struct keywords *p;
366 bff58270 2022-09-19 op p = bsearch(s, keywords, nitems(keywords), sizeof(keywords[0]),
370 bff58270 2022-09-19 op return (p->k_val);
372 bff58270 2022-09-19 op return (STRING);
375 bff58270 2022-09-19 op #define START_EXPAND 1
376 bff58270 2022-09-19 op #define DONE_EXPAND 2
378 bff58270 2022-09-19 op static int expanding;
386 bff58270 2022-09-19 op if (file->ungetpos > 0)
387 bff58270 2022-09-19 op c = file->ungetbuf[--file->ungetpos];
389 bff58270 2022-09-19 op c = getc(file->stream);
391 bff58270 2022-09-19 op if (c == START_EXPAND)
392 bff58270 2022-09-19 op expanding = 1;
393 bff58270 2022-09-19 op else if (c == DONE_EXPAND)
394 bff58270 2022-09-19 op expanding = 0;
402 bff58270 2022-09-19 op lgetc(int quotec)
406 bff58270 2022-09-19 op if (quotec) {
407 bff58270 2022-09-19 op if ((c = igetc()) == EOF) {
408 bff58270 2022-09-19 op yyerror("reached end of filewhile parsing "
409 bff58270 2022-09-19 op "quoted string");
410 bff58270 2022-09-19 op if (file == topfile || popfile() == EOF)
411 bff58270 2022-09-19 op return (EOF);
412 bff58270 2022-09-19 op return (quotec);
418 bff58270 2022-09-19 op if (c == '\t' || c == ' ') {
419 bff58270 2022-09-19 op /* Compress blanks to a sigle space. */
421 bff58270 2022-09-19 op c = getc(file->stream);
422 bff58270 2022-09-19 op } while (c == '\t' || c == ' ');
423 bff58270 2022-09-19 op ungetc(c, file->stream);
427 bff58270 2022-09-19 op if (c == EOF) {
429 bff58270 2022-09-19 op * Fake EOL when hit EOF for the first time. This gets line
430 bff58270 2022-09-19 op * count rigchtif last line included file is syntactically
431 bff58270 2022-09-19 op * invalid and has no newline.
433 bff58270 2022-09-19 op if (file->eof_reached == 0) {
434 bff58270 2022-09-19 op file->eof_reached = 1;
435 bff58270 2022-09-19 op return ('\n');
437 bff58270 2022-09-19 op while (c == EOF) {
438 bff58270 2022-09-19 op if (file == topfile || popfile() == EOF)
439 bff58270 2022-09-19 op return (EOF);
447 bff58270 2022-09-19 op lungetc(int c)
449 bff58270 2022-09-19 op if (c == EOF)
452 bff58270 2022-09-19 op if (file->ungetpos >= file->ungetsize) {
453 bff58270 2022-09-19 op void *p = reallocarray(file->ungetbuf, file->ungetsize, 2);
454 bff58270 2022-09-19 op if (p == NULL)
455 bff58270 2022-09-19 op err(1, "reallocarray");
456 bff58270 2022-09-19 op file->ungetbuf = p;
457 bff58270 2022-09-19 op file->ungetsize *= 2;
459 bff58270 2022-09-19 op file->ungetbuf[file->ungetpos++] = c;
463 bff58270 2022-09-19 op findeol(void)
467 bff58270 2022-09-19 op /* skip to either EOF or the first real EOL */
469 bff58270 2022-09-19 op c = lgetc(0);
470 bff58270 2022-09-19 op if (c == '\n') {
471 bff58270 2022-09-19 op file->lineno++;
474 bff58270 2022-09-19 op if (c == EOF)
477 bff58270 2022-09-19 op return (ERROR);
483 bff58270 2022-09-19 op char buf[8096];
484 bff58270 2022-09-19 op char *p = buf;
487 bff58270 2022-09-19 op int starting = 0;
488 bff58270 2022-09-19 op int ending = 0;
489 14d86fd9 2022-12-04 op int quote = 0;
491 bff58270 2022-09-19 op if (!in_define && block == 0) {
492 bff58270 2022-09-19 op while ((c = lgetc(0)) != '{' && c != EOF) {
493 bff58270 2022-09-19 op if (c == '\n')
494 bff58270 2022-09-19 op file->lineno++;
497 bff58270 2022-09-19 op if (c == EOF)
501 bff58270 2022-09-19 op c = lgetc(0);
502 bff58270 2022-09-19 op if (c == '{' || c == '!') {
503 bff58270 2022-09-19 op if (c == '{')
509 bff58270 2022-09-19 op if (c == '\n')
510 bff58270 2022-09-19 op file->lineno++;
513 bff58270 2022-09-19 op while ((c = lgetc(0)) == ' ' || c == '\t' || c == '\n') {
514 bff58270 2022-09-19 op if (c == '\n')
515 bff58270 2022-09-19 op file->lineno++;
518 bff58270 2022-09-19 op if (c == EOF) {
519 bff58270 2022-09-19 op yyerror("unterminated block");
523 bff58270 2022-09-19 op yylval.lineno = file->lineno;
525 bff58270 2022-09-19 op if (block != 0 && c == block) {
526 bff58270 2022-09-19 op if ((c = lgetc(0)) == '}') {
527 bff58270 2022-09-19 op if (block == '!') {
529 bff58270 2022-09-19 op return ('!');
532 bff58270 2022-09-19 op return ('}');
538 bff58270 2022-09-19 op if (in_define && block == 0) {
539 bff58270 2022-09-19 op if (c == '{')
540 bff58270 2022-09-19 op goto newblock;
543 bff58270 2022-09-19 op if (starting) {
544 bff58270 2022-09-19 op if (c == '!' || c == '{') {
546 c063deb1 2022-10-21 op lungetc('{');
549 bff58270 2022-09-19 op starting = 0;
552 bff58270 2022-09-19 op } else if (c == '{') {
553 bff58270 2022-09-19 op starting = 1;
558 bff58270 2022-09-19 op if ((size_t)(p - buf) >= sizeof(buf)) {
559 bff58270 2022-09-19 op yyerror("string too long");
560 bff58270 2022-09-19 op return (findeol());
562 bff58270 2022-09-19 op } while ((c = lgetc(0)) != EOF && c != '\n');
564 bff58270 2022-09-19 op if (c == EOF) {
565 bff58270 2022-09-19 op yyerror("unterminated block");
568 bff58270 2022-09-19 op if (c == '\n')
569 bff58270 2022-09-19 op file->lineno++;
570 bff58270 2022-09-19 op if ((yylval.v.string = strdup(buf)) == NULL)
571 bff58270 2022-09-19 op err(1, "strdup");
572 bff58270 2022-09-19 op return (STRING);
575 bff58270 2022-09-19 op if (block == '!') {
577 bff58270 2022-09-19 op if (ending) {
578 bff58270 2022-09-19 op if (c == '}') {
580 bff58270 2022-09-19 op lungetc(block);
586 bff58270 2022-09-19 op } else if (c == '!') {
592 bff58270 2022-09-19 op if ((size_t)(p - buf) >= sizeof(buf)) {
593 bff58270 2022-09-19 op yyerror("line too long");
594 bff58270 2022-09-19 op return (findeol());
596 bff58270 2022-09-19 op } while ((c = lgetc(0)) != EOF && c != '\n');
599 bff58270 2022-09-19 op if (c == EOF) {
600 bff58270 2022-09-19 op yyerror("unterminated block");
603 bff58270 2022-09-19 op if (c == '\n')
604 bff58270 2022-09-19 op file->lineno++;
606 bff58270 2022-09-19 op if ((yylval.v.string = strdup(buf)) == NULL)
607 bff58270 2022-09-19 op err(1, "strdup");
608 bff58270 2022-09-19 op return (STRING);
611 bff58270 2022-09-19 op if (c == '|')
615 14d86fd9 2022-12-04 op if (!quote && isspace((unsigned char)c))
618 14d86fd9 2022-12-04 op if (c == '"')
619 14d86fd9 2022-12-04 op quote = !quote;
621 14d86fd9 2022-12-04 op if (!quote && c == '|') {
626 bff58270 2022-09-19 op if (ending) {
627 bff58270 2022-09-19 op if (c == '}') {
629 bff58270 2022-09-19 op lungetc('}');
635 14d86fd9 2022-12-04 op } else if (!quote && c == '}') {
641 bff58270 2022-09-19 op if ((size_t)(p - buf) >= sizeof(buf)) {
642 bff58270 2022-09-19 op yyerror("string too long");
643 bff58270 2022-09-19 op return (findeol());
645 14d86fd9 2022-12-04 op } while ((c = lgetc(0)) != EOF);
648 bff58270 2022-09-19 op if (c == EOF) {
649 14d86fd9 2022-12-04 op yyerror(quote ? "unterminated quote" : "unterminated block");
652 bff58270 2022-09-19 op if (c == '\n')
653 bff58270 2022-09-19 op file->lineno++;
654 bff58270 2022-09-19 op if ((token = lookup(buf)) == STRING)
655 bff58270 2022-09-19 op if ((yylval.v.string = strdup(buf)) == NULL)
656 bff58270 2022-09-19 op err(1, "strdup");
657 bff58270 2022-09-19 op return (token);
660 bff58270 2022-09-19 op struct file *
661 bff58270 2022-09-19 op pushfile(const char *name, int secret)
663 bff58270 2022-09-19 op struct file *nfile;
665 bff58270 2022-09-19 op if ((nfile = calloc(1, sizeof(*nfile))) == NULL)
666 bff58270 2022-09-19 op err(1, "calloc");
667 bff58270 2022-09-19 op if ((nfile->name = strdup(name)) == NULL)
668 bff58270 2022-09-19 op err(1, "strdup");
669 bff58270 2022-09-19 op if ((nfile->stream = fopen(nfile->name, "r")) == NULL) {
670 bff58270 2022-09-19 op warn("can't open %s", nfile->name);
671 bff58270 2022-09-19 op free(nfile->name);
673 bff58270 2022-09-19 op return (NULL);
675 bff58270 2022-09-19 op nfile->lineno = TAILQ_EMPTY(&files) ? 1 : 0;
676 bff58270 2022-09-19 op nfile->ungetsize = 16;
677 bff58270 2022-09-19 op nfile->ungetbuf = malloc(nfile->ungetsize);
678 bff58270 2022-09-19 op if (nfile->ungetbuf == NULL)
679 bff58270 2022-09-19 op err(1, "malloc");
680 bff58270 2022-09-19 op TAILQ_INSERT_TAIL(&files, nfile, entry);
681 bff58270 2022-09-19 op return (nfile);
685 bff58270 2022-09-19 op popfile(void)
687 bff58270 2022-09-19 op struct file *prev;
689 bff58270 2022-09-19 op if ((prev = TAILQ_PREV(file, files, entry)) != NULL)
690 bff58270 2022-09-19 op prev->errors += file->errors;
692 bff58270 2022-09-19 op TAILQ_REMOVE(&files, file, entry);
693 bff58270 2022-09-19 op fclose(file->stream);
694 bff58270 2022-09-19 op free(file->name);
695 bff58270 2022-09-19 op free(file->ungetbuf);
698 bff58270 2022-09-19 op return (file ? 0 : EOF);
702 14c31a43 2022-11-25 op parse(FILE *outfile, const char *filename)
704 14c31a43 2022-11-25 op fp = outfile;
706 bff58270 2022-09-19 op if ((file = pushfile(filename, 0)) == 0)
708 bff58270 2022-09-19 op topfile = file;
711 bff58270 2022-09-19 op errors = file->errors;
714 bff58270 2022-09-19 op return (errors ? -1 : 0);
723 9a90a3d1 2022-09-29 op if (yylval.lineno == lastline + 1) {
724 9a90a3d1 2022-09-29 op lastline = yylval.lineno;
727 9a90a3d1 2022-09-29 op lastline = yylval.lineno;
729 14c31a43 2022-11-25 op fprintf(fp, "#line %d ", yylval.lineno);
730 bff58270 2022-09-19 op printq(file->name);
731 14c31a43 2022-11-25 op putc('\n', fp);
735 bff58270 2022-09-19 op printq(const char *str)
737 14c31a43 2022-11-25 op putc('"', fp);
738 bff58270 2022-09-19 op for (; *str; ++str) {
739 bff58270 2022-09-19 op if (*str == '"')
740 14c31a43 2022-11-25 op putc('\\', fp);
741 14c31a43 2022-11-25 op putc(*str, fp);
743 14c31a43 2022-11-25 op putc('"', fp);