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1.2 ! kristaps 1: /* $Id: mdoc_validate.c,v 1.1 2009/03/25 15:17:49 kristaps Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@openbsd.org>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the
7: * above copyright notice and this permission notice appear in all
8: * copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11: * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12: * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13: * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14: * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15: * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16: * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17: * PERFORMANCE OF THIS SOFTWARE.
18: */
19: #include <sys/types.h>
20:
21: #include <assert.h>
22: #include <ctype.h>
23: #include <stdarg.h>
24: #include <stdlib.h>
1.2 ! kristaps 25: #include <string.h>
1.1 kristaps 26:
27: #include "libmdoc.h"
28:
29: /* FIXME: .Bl -diag can't have non-text children in HEAD. */
30: /* TODO: ignoring Pp (it's superfluous in some invocations). */
31:
32: #define PRE_ARGS struct mdoc *mdoc, const struct mdoc_node *n
33: #define POST_ARGS struct mdoc *mdoc
34:
35: enum merr {
1.2 ! kristaps 36: ETOOLONG,
1.1 kristaps 37: EESCAPE,
38: EPRINT,
39: ENODATA,
40: ENOPROLOGUE,
41: ELINE,
42: EATT,
43: ENAME,
44: ELISTTYPE,
45: EDISPTYPE,
46: EMULTIDISP,
47: EMULTILIST,
48: EARGREP,
49: EBOOL,
50: ENESTDISP
51: };
52:
53: enum mwarn {
54: WESCAPE,
55: WWRONGMSEC,
56: WSECOOO,
57: WSECREP,
58: WBADSTAND,
59: WNAMESECINC,
60: WNOMULTILINE,
61: WMULTILINE,
62: WLINE,
63: WNOLINE,
64: WPROLOOO,
65: WPROLREP,
66: WARGVAL,
67: WBADSEC,
68: WBADMSEC
69: };
70:
71: typedef int (*v_pre)(PRE_ARGS);
72: typedef int (*v_post)(POST_ARGS);
73:
74: struct valids {
75: v_pre *pre;
76: v_post *post;
77: };
78:
79: static int pwarn(struct mdoc *, int, int, enum mwarn);
80: static int perr(struct mdoc *, int, int, enum merr);
81: static int check_parent(PRE_ARGS, int, enum mdoc_type);
82: static int check_msec(PRE_ARGS, ...);
83: static int check_sec(PRE_ARGS, ...);
84: static int check_stdarg(PRE_ARGS);
85: static int check_text(struct mdoc *, int, int, const char *);
86: static int check_argv(struct mdoc *,
87: const struct mdoc_node *,
88: const struct mdoc_argv *);
89: static int check_args(struct mdoc *,
90: const struct mdoc_node *);
91: static int err_child_lt(struct mdoc *, const char *, int);
92: static int warn_child_lt(struct mdoc *, const char *, int);
93: static int err_child_gt(struct mdoc *, const char *, int);
94: static int warn_child_gt(struct mdoc *, const char *, int);
95: static int err_child_eq(struct mdoc *, const char *, int);
96: static int warn_child_eq(struct mdoc *, const char *, int);
1.2 ! kristaps 97: static int count_child(struct mdoc *);
! 98: static int warn_count(struct mdoc *, const char *,
1.1 kristaps 99: int, const char *, int);
1.2 ! kristaps 100: static int err_count(struct mdoc *, const char *,
1.1 kristaps 101: int, const char *, int);
102: static int pre_an(PRE_ARGS);
103: static int pre_bd(PRE_ARGS);
104: static int pre_bl(PRE_ARGS);
105: static int pre_cd(PRE_ARGS);
106: static int pre_dd(PRE_ARGS);
107: static int pre_display(PRE_ARGS);
108: static int pre_dt(PRE_ARGS);
109: static int pre_er(PRE_ARGS);
110: static int pre_ex(PRE_ARGS);
111: static int pre_fd(PRE_ARGS);
112: static int pre_it(PRE_ARGS);
113: static int pre_lb(PRE_ARGS);
114: static int pre_os(PRE_ARGS);
115: static int pre_prologue(PRE_ARGS);
116: static int pre_rv(PRE_ARGS);
117: static int pre_sh(PRE_ARGS);
118: static int pre_ss(PRE_ARGS);
119: static int herr_ge1(POST_ARGS);
120: static int hwarn_le1(POST_ARGS);
121: static int herr_eq0(POST_ARGS);
122: static int eerr_eq0(POST_ARGS);
123: static int eerr_le2(POST_ARGS);
124: static int eerr_eq1(POST_ARGS);
125: static int eerr_ge1(POST_ARGS);
126: static int ewarn_eq0(POST_ARGS);
127: static int ewarn_eq1(POST_ARGS);
128: static int bwarn_ge1(POST_ARGS);
129: static int hwarn_eq1(POST_ARGS);
130: static int ewarn_ge1(POST_ARGS);
131: static int ebool(POST_ARGS);
132: static int post_an(POST_ARGS);
133: static int post_args(POST_ARGS);
134: static int post_at(POST_ARGS);
135: static int post_bf(POST_ARGS);
136: static int post_bl(POST_ARGS);
137: static int post_it(POST_ARGS);
138: static int post_nm(POST_ARGS);
139: static int post_root(POST_ARGS);
140: static int post_sh(POST_ARGS);
141: static int post_sh_body(POST_ARGS);
142: static int post_sh_head(POST_ARGS);
143: static int post_st(POST_ARGS);
144:
1.2 ! kristaps 145: #define vwarn(m, t) nwarn((m), (m)->last, (t))
! 146: #define verr(m, t) nerr((m), (m)->last, (t))
1.1 kristaps 147: #define nwarn(m, n, t) pwarn((m), (n)->line, (n)->pos, (t))
148: #define nerr(m, n, t) perr((m), (n)->line, (n)->pos, (t))
149:
150: static v_pre pres_an[] = { pre_an, NULL };
151: static v_pre pres_bd[] = { pre_display, pre_bd, NULL };
152: static v_pre pres_bl[] = { pre_bl, NULL };
153: static v_pre pres_cd[] = { pre_cd, NULL };
154: static v_pre pres_dd[] = { pre_prologue, pre_dd, NULL };
155: static v_pre pres_d1[] = { pre_display, NULL };
156: static v_pre pres_dt[] = { pre_prologue, pre_dt, NULL };
157: static v_pre pres_er[] = { pre_er, NULL };
158: static v_pre pres_ex[] = { pre_ex, NULL };
159: static v_pre pres_fd[] = { pre_fd, NULL };
160: static v_pre pres_it[] = { pre_it, NULL };
161: static v_pre pres_lb[] = { pre_lb, NULL };
162: static v_pre pres_os[] = { pre_prologue, pre_os, NULL };
163: static v_pre pres_rv[] = { pre_rv, NULL };
164: static v_pre pres_sh[] = { pre_sh, NULL };
165: static v_pre pres_ss[] = { pre_ss, NULL };
166: static v_post posts_bool[] = { eerr_eq1, ebool, NULL };
167: static v_post posts_bd[] = { herr_eq0, bwarn_ge1, NULL };
168: static v_post posts_text[] = { eerr_ge1, NULL };
169: static v_post posts_wtext[] = { ewarn_ge1, NULL };
170: static v_post posts_notext[] = { eerr_eq0, NULL };
171: static v_post posts_wline[] = { bwarn_ge1, herr_eq0, NULL };
172: static v_post posts_sh[] = { herr_ge1, bwarn_ge1, post_sh, NULL };
173: static v_post posts_bl[] = { herr_eq0, bwarn_ge1, post_bl, NULL };
174: static v_post posts_it[] = { post_it, NULL };
175: static v_post posts_in[] = { ewarn_eq1, NULL };
176: static v_post posts_ss[] = { herr_ge1, NULL };
177: static v_post posts_pf[] = { eerr_eq1, NULL };
178: static v_post posts_lb[] = { eerr_eq1, NULL };
179: static v_post posts_st[] = { eerr_eq1, post_st, NULL };
180: static v_post posts_pp[] = { ewarn_eq0, NULL };
181: static v_post posts_ex[] = { eerr_eq0, post_args, NULL };
182: static v_post posts_rv[] = { eerr_eq0, post_args, NULL };
183: static v_post posts_an[] = { post_an, NULL };
184: static v_post posts_at[] = { post_at, NULL };
185: static v_post posts_xr[] = { eerr_ge1, eerr_le2, NULL };
186: static v_post posts_nm[] = { post_nm, NULL };
187: static v_post posts_bf[] = { hwarn_le1, post_bf, NULL };
188: static v_post posts_fo[] = { hwarn_eq1, bwarn_ge1, NULL };
189:
190: const struct valids mdoc_valids[MDOC_MAX] = {
191: { NULL, NULL }, /* \" */
192: { pres_dd, posts_text }, /* Dd */
193: { pres_dt, NULL }, /* Dt */
194: { pres_os, NULL }, /* Os */
195: { pres_sh, posts_sh }, /* Sh */
196: { pres_ss, posts_ss }, /* Ss */
197: { NULL, posts_pp }, /* Pp */
198: { pres_d1, posts_wline }, /* D1 */
199: { pres_d1, posts_wline }, /* Dl */
200: { pres_bd, posts_bd }, /* Bd */
201: { NULL, NULL }, /* Ed */
202: { pres_bl, posts_bl }, /* Bl */
203: { NULL, NULL }, /* El */
204: { pres_it, posts_it }, /* It */
205: { NULL, posts_text }, /* Ad */
206: { pres_an, posts_an }, /* An */
207: { NULL, NULL }, /* Ar */
208: { pres_cd, posts_text }, /* Cd */
209: { NULL, NULL }, /* Cm */
210: { NULL, NULL }, /* Dv */
211: { pres_er, posts_text }, /* Er */
212: { NULL, NULL }, /* Ev */
213: { pres_ex, posts_ex }, /* Ex */
214: { NULL, NULL }, /* Fa */
215: { pres_fd, posts_wtext }, /* Fd */
216: { NULL, NULL }, /* Fl */
217: { NULL, posts_text }, /* Fn */
218: { NULL, posts_wtext }, /* Ft */
219: { NULL, posts_text }, /* Ic */
220: { NULL, posts_in }, /* In */
221: { NULL, NULL }, /* Li */
222: { NULL, posts_wtext }, /* Nd */
223: { NULL, posts_nm }, /* Nm */
224: { NULL, posts_wline }, /* Op */
225: { NULL, NULL }, /* Ot */
226: { NULL, NULL }, /* Pa */
227: { pres_rv, posts_rv }, /* Rv */
228: { NULL, posts_st }, /* St */
229: { NULL, NULL }, /* Va */
230: { NULL, posts_text }, /* Vt */
231: { NULL, posts_xr }, /* Xr */
232: { NULL, posts_text }, /* %A */
233: { NULL, posts_text }, /* %B */
234: { NULL, posts_text }, /* %D */
235: { NULL, posts_text }, /* %I */
236: { NULL, posts_text }, /* %J */
237: { NULL, posts_text }, /* %N */
238: { NULL, posts_text }, /* %O */
239: { NULL, posts_text }, /* %P */
240: { NULL, posts_text }, /* %R */
241: { NULL, posts_text }, /* %T */
242: { NULL, posts_text }, /* %V */
243: { NULL, NULL }, /* Ac */
244: { NULL, NULL }, /* Ao */
245: { NULL, posts_wline }, /* Aq */
246: { NULL, posts_at }, /* At */
247: { NULL, NULL }, /* Bc */
248: { NULL, posts_bf }, /* Bf */
249: { NULL, NULL }, /* Bo */
250: { NULL, posts_wline }, /* Bq */
251: { NULL, NULL }, /* Bsx */
252: { NULL, NULL }, /* Bx */
253: { NULL, posts_bool }, /* Db */
254: { NULL, NULL }, /* Dc */
255: { NULL, NULL }, /* Do */
256: { NULL, posts_wline }, /* Dq */
257: { NULL, NULL }, /* Ec */
258: { NULL, NULL }, /* Ef */
259: { NULL, NULL }, /* Em */
260: { NULL, NULL }, /* Eo */
261: { NULL, NULL }, /* Fx */
262: { NULL, posts_text }, /* Ms */
263: { NULL, posts_notext }, /* No */
264: { NULL, posts_notext }, /* Ns */
265: { NULL, NULL }, /* Nx */
266: { NULL, NULL }, /* Ox */
267: { NULL, NULL }, /* Pc */
268: { NULL, posts_pf }, /* Pf */
269: { NULL, NULL }, /* Po */
270: { NULL, posts_wline }, /* Pq */
271: { NULL, NULL }, /* Qc */
272: { NULL, posts_wline }, /* Ql */
273: { NULL, NULL }, /* Qo */
274: { NULL, posts_wline }, /* Qq */
275: { NULL, NULL }, /* Re */
276: { NULL, posts_wline }, /* Rs */
277: { NULL, NULL }, /* Sc */
278: { NULL, NULL }, /* So */
279: { NULL, posts_wline }, /* Sq */
280: { NULL, posts_bool }, /* Sm */
281: { NULL, posts_text }, /* Sx */
282: { NULL, posts_text }, /* Sy */
283: { NULL, posts_text }, /* Tn */
284: { NULL, NULL }, /* Ux */
285: { NULL, NULL }, /* Xc */
286: { NULL, NULL }, /* Xo */
287: { NULL, posts_fo }, /* Fo */
288: { NULL, NULL }, /* Fc */
289: { NULL, NULL }, /* Oo */
290: { NULL, NULL }, /* Oc */
291: { NULL, posts_wline }, /* Bk */
292: { NULL, NULL }, /* Ek */
293: { NULL, posts_notext }, /* Bt */
294: { NULL, NULL }, /* Hf */
295: { NULL, NULL }, /* Fr */
296: { NULL, posts_notext }, /* Ud */
297: { pres_lb, posts_lb }, /* Lb */
298: { NULL, NULL }, /* Ap */
299: { NULL, posts_pp }, /* Lp */
300: { NULL, posts_text }, /* Lk */
301: { NULL, posts_text }, /* Mt */
302: { NULL, posts_wline }, /* Brq */
303: { NULL, NULL }, /* Bro */
304: { NULL, NULL }, /* Brc */
305: { NULL, posts_text }, /* %C */
306: { NULL, NULL }, /* Es */
307: { NULL, NULL }, /* En */
308: { NULL, NULL }, /* Dx */
309: { NULL, posts_text }, /* %Q */
310: };
311:
312:
1.2 ! kristaps 313: #ifdef __linux__
! 314: extern size_t strlcpy(char *, const char *, size_t);
! 315: extern size_t strlcat(char *, const char *, size_t);
! 316: #endif
! 317:
! 318:
1.1 kristaps 319: int
320: mdoc_valid_pre(struct mdoc *mdoc,
321: const struct mdoc_node *n)
322: {
323: v_pre *p;
324: int line, pos;
325: const char *tp;
326:
327: if (MDOC_TEXT == n->type) {
328: tp = n->string;
329: line = n->line;
330: pos = n->pos;
331: return(check_text(mdoc, line, pos, tp));
332: }
333:
334: if ( ! check_args(mdoc, n))
335: return(0);
336: if (NULL == mdoc_valids[n->tok].pre)
337: return(1);
338: for (p = mdoc_valids[n->tok].pre; *p; p++)
339: if ( ! (*p)(mdoc, n))
340: return(0);
341: return(1);
342: }
343:
344:
345: int
346: mdoc_valid_post(struct mdoc *mdoc)
347: {
348: v_post *p;
349:
350: /*
351: * This check occurs after the macro's children have been filled
352: * in: postfix validation. Since this happens when we're
353: * rewinding the scope tree, it's possible to have multiple
354: * invocations (as by design, for now), we set bit MDOC_VALID to
355: * indicate that we've validated.
356: */
357:
358: if (MDOC_VALID & mdoc->last->flags)
359: return(1);
360: mdoc->last->flags |= MDOC_VALID;
361:
362: if (MDOC_TEXT == mdoc->last->type)
363: return(1);
364: if (MDOC_ROOT == mdoc->last->type)
365: return(post_root(mdoc));
366:
367: if (NULL == mdoc_valids[mdoc->last->tok].post)
368: return(1);
369: for (p = mdoc_valids[mdoc->last->tok].post; *p; p++)
370: if ( ! (*p)(mdoc))
371: return(0);
372:
373: return(1);
374: }
375:
376:
377: static int
378: perr(struct mdoc *m, int line, int pos, enum merr type)
379: {
380: char *p;
381:
382: p = NULL;
383: switch (type) {
1.2 ! kristaps 384: case (ETOOLONG):
! 385: p = "text argument too long";
! 386: break;
1.1 kristaps 387: case (EESCAPE):
388: p = "invalid escape sequence";
389: break;
390: case (EPRINT):
391: p = "invalid character";
392: break;
393: case (ENESTDISP):
394: p = "displays may not be nested";
395: break;
396: case (EBOOL):
397: p = "expected boolean value";
398: break;
399: case (EARGREP):
400: p = "argument repeated";
401: break;
402: case (EMULTIDISP):
403: p = "multiple display types specified";
404: break;
405: case (EMULTILIST):
406: p = "multiple list types specified";
407: break;
408: case (ELISTTYPE):
409: p = "missing list type";
410: break;
411: case (EDISPTYPE):
412: p = "missing display type";
413: break;
414: case (ELINE):
415: p = "expected line arguments";
416: break;
417: case (ENOPROLOGUE):
418: p = "document has no prologue";
419: break;
420: case (ENODATA):
421: p = "document has no data";
422: break;
423: case (EATT):
424: p = "expected valid AT&T symbol";
425: break;
426: case (ENAME):
427: p = "default name not yet set";
428: break;
429: }
430: assert(p);
431: return(mdoc_perr(m, line, pos, p));
432: }
433:
434:
435: static int
436: pwarn(struct mdoc *m, int line, int pos, enum mwarn type)
437: {
438: char *p;
439: enum mdoc_warn c;
440:
441: c = WARN_SYNTAX;
442: p = NULL;
443: switch (type) {
444: case (WBADMSEC):
445: p = "inappropriate manual section";
446: c = WARN_COMPAT;
447: break;
448: case (WBADSEC):
449: p = "inappropriate document section";
450: c = WARN_COMPAT;
451: break;
452: case (WARGVAL):
453: p = "argument value suggested";
454: c = WARN_COMPAT;
455: break;
456: case (WPROLREP):
457: p = "prologue macros repeated";
458: c = WARN_COMPAT;
459: break;
460: case (WPROLOOO):
461: p = "prologue macros out-of-order";
462: c = WARN_COMPAT;
463: break;
464: case (WESCAPE):
465: p = "invalid escape sequence";
466: break;
467: case (WNOLINE):
468: p = "suggested no line arguments";
469: break;
470: case (WLINE):
471: p = "suggested line arguments";
472: break;
473: case (WMULTILINE):
474: p = "suggested multi-line arguments";
475: break;
476: case (WNOMULTILINE):
477: p = "suggested no multi-line arguments";
478: break;
479: case (WWRONGMSEC):
480: p = "document section in wrong manual section";
481: c = WARN_COMPAT;
482: break;
483: case (WSECOOO):
484: p = "document section out of conventional order";
485: break;
486: case (WSECREP):
487: p = "document section repeated";
488: break;
489: case (WBADSTAND):
490: p = "unknown standard";
491: break;
492: case (WNAMESECINC):
493: p = "NAME section contents incomplete/badly-ordered";
494: break;
495: }
496: assert(p);
497: return(mdoc_pwarn(m, line, pos, c, p));
498: }
499:
500:
501:
502: static inline int
503: warn_count(struct mdoc *m, const char *k,
504: int want, const char *v, int has)
505: {
506:
507: return(mdoc_warn(m, WARN_SYNTAX,
508: "suggests %s %s %d (has %d)", v, k, want, has));
509: }
510:
511:
512: static inline int
513: err_count(struct mdoc *m, const char *k,
514: int want, const char *v, int has)
515: {
516:
517: return(mdoc_err(m,
518: "requires %s %s %d (has %d)", v, k, want, has));
519: }
520:
521:
522: static inline int
523: count_child(struct mdoc *mdoc)
524: {
525: int i;
526: struct mdoc_node *n;
527:
528: for (i = 0, n = mdoc->last->child; n; n = n->next, i++)
529: /* Do nothing */ ;
530:
531: return(i);
532: }
533:
534:
535: /*
536: * Build these up with macros because they're basically the same check
537: * for different inequalities. Yes, this could be done with functions,
538: * but this is reasonable for now.
539: */
540:
541: #define CHECK_CHILD_DEFN(lvl, name, ineq) \
542: static int \
543: lvl##_child_##name(struct mdoc *mdoc, const char *p, int sz) \
544: { \
545: int i; \
546: if ((i = count_child(mdoc)) ineq sz) \
547: return(1); \
548: return(lvl##_count(mdoc, #ineq, sz, p, i)); \
549: }
550:
551: #define CHECK_BODY_DEFN(name, lvl, func, num) \
552: static int \
553: b##lvl##_##name(POST_ARGS) \
554: { \
555: if (MDOC_BODY != mdoc->last->type) \
556: return(1); \
557: return(func(mdoc, "multi-line arguments", (num))); \
558: }
559:
560: #define CHECK_ELEM_DEFN(name, lvl, func, num) \
561: static int \
562: e##lvl##_##name(POST_ARGS) \
563: { \
564: assert(MDOC_ELEM == mdoc->last->type); \
565: return(func(mdoc, "line arguments", (num))); \
566: }
567:
568: #define CHECK_HEAD_DEFN(name, lvl, func, num) \
569: static int \
570: h##lvl##_##name(POST_ARGS) \
571: { \
572: if (MDOC_HEAD != mdoc->last->type) \
573: return(1); \
574: return(func(mdoc, "line arguments", (num))); \
575: }
576:
577:
578: CHECK_CHILD_DEFN(warn, gt, >) /* warn_child_gt() */
579: CHECK_CHILD_DEFN(err, gt, >) /* err_child_gt() */
580: CHECK_CHILD_DEFN(warn, eq, ==) /* warn_child_eq() */
581: CHECK_CHILD_DEFN(err, eq, ==) /* err_child_eq() */
582: CHECK_CHILD_DEFN(err, lt, <) /* err_child_lt() */
583: CHECK_CHILD_DEFN(warn, lt, <) /* warn_child_lt() */
584: CHECK_BODY_DEFN(ge1, warn, warn_child_gt, 0) /* bwarn_ge1() */
585: CHECK_ELEM_DEFN(eq1, warn, warn_child_eq, 1) /* ewarn_eq1() */
586: CHECK_ELEM_DEFN(eq0, warn, warn_child_eq, 0) /* ewarn_eq0() */
587: CHECK_ELEM_DEFN(ge1, warn, warn_child_gt, 0) /* ewarn_gt1() */
588: CHECK_ELEM_DEFN(eq1, err, err_child_eq, 1) /* eerr_eq1() */
589: CHECK_ELEM_DEFN(le2, err, err_child_lt, 3) /* eerr_le2() */
590: CHECK_ELEM_DEFN(eq0, err, err_child_eq, 0) /* eerr_eq0() */
591: CHECK_ELEM_DEFN(ge1, err, err_child_gt, 0) /* eerr_ge1() */
592: CHECK_HEAD_DEFN(eq0, err, err_child_eq, 0) /* herr_eq0() */
593: CHECK_HEAD_DEFN(le1, warn, warn_child_lt, 2) /* hwarn_le1() */
594: CHECK_HEAD_DEFN(ge1, err, err_child_gt, 0) /* herr_ge1() */
595: CHECK_HEAD_DEFN(eq1, warn, warn_child_eq, 1) /* hwarn_eq1() */
596:
597:
598: static int
599: check_stdarg(PRE_ARGS)
600: {
601:
602: if (n->args && 1 == n->args->argc)
603: if (MDOC_Std == n->args->argv[0].arg)
604: return(1);
605: return(nwarn(mdoc, n, WARGVAL));
606: }
607:
608:
609: static int
610: check_sec(PRE_ARGS, ...)
611: {
612: enum mdoc_sec sec;
613: va_list ap;
614:
615: va_start(ap, n);
616:
617: for (;;) {
618: /* LINTED */
619: sec = (enum mdoc_sec)va_arg(ap, int);
620: if (SEC_CUSTOM == sec)
621: break;
622: if (sec != mdoc->lastsec)
623: continue;
624: va_end(ap);
625: return(1);
626: }
627:
628: va_end(ap);
629: return(nwarn(mdoc, n, WBADSEC));
630: }
631:
632:
633: static int
634: check_msec(PRE_ARGS, ...)
635: {
636: va_list ap;
637: int msec;
638:
639: va_start(ap, n);
640: for (;;) {
641: /* LINTED */
642: if (0 == (msec = va_arg(ap, int)))
643: break;
644: if (msec != mdoc->meta.msec)
645: continue;
646: va_end(ap);
647: return(1);
648: }
649:
650: va_end(ap);
651: return(nwarn(mdoc, n, WBADMSEC));
652: }
653:
654:
655: static int
656: check_args(struct mdoc *m, const struct mdoc_node *n)
657: {
658: int i;
659:
660: if (NULL == n->args)
661: return(1);
662:
663: assert(n->args->argc);
664: for (i = 0; i < (int)n->args->argc; i++)
665: if ( ! check_argv(m, n, &n->args->argv[i]))
666: return(0);
667:
668: return(1);
669: }
670:
671:
672: static int
673: check_argv(struct mdoc *m, const struct mdoc_node *n,
674: const struct mdoc_argv *v)
675: {
676: int i;
677:
678: for (i = 0; i < (int)v->sz; i++)
679: if ( ! check_text(m, v->line, v->pos, v->value[i]))
680: return(0);
681:
682: if (MDOC_Std == v->arg) {
683: /* `Nm' name must be set. */
684: if (v->sz || m->meta.name)
685: return(1);
686: return(nerr(m, n, ENAME));
687: }
688:
689: return(1);
690: }
691:
692:
693: static int
694: check_text(struct mdoc *mdoc, int line, int pos, const char *p)
695: {
696: size_t c;
697:
698: /* FIXME: indicate deprecated escapes \*(xx and \*x. */
699:
700: for ( ; *p; p++) {
701: if ('\t' == *p) {
702: if ( ! (MDOC_LITERAL & mdoc->flags))
703: return(perr(mdoc, line, pos, EPRINT));
704: } else if ( ! isprint((u_char)*p))
705: return(perr(mdoc, line, pos, EPRINT));
706:
707: if ('\\' != *p)
708: continue;
709:
710: c = mdoc_isescape(p);
711: if (c) {
712: p += (int)c - 1;
713: continue;
714: }
715: if ( ! (MDOC_IGN_ESCAPE & mdoc->pflags))
716: return(perr(mdoc, line, pos, EESCAPE));
717: if ( ! pwarn(mdoc, line, pos, WESCAPE))
718: return(0);
719: }
720:
721: return(1);
722: }
723:
724:
725:
726:
727: static int
728: check_parent(PRE_ARGS, int tok, enum mdoc_type t)
729: {
730:
731: assert(n->parent);
732: if ((MDOC_ROOT == t || tok == n->parent->tok) &&
733: (t == n->parent->type))
734: return(1);
735:
736: return(mdoc_nerr(mdoc, n, "require parent %s",
737: MDOC_ROOT == t ? "<root>" : mdoc_macronames[tok]));
738: }
739:
740:
741:
742: static int
743: pre_display(PRE_ARGS)
744: {
745: struct mdoc_node *node;
746:
747: /* Display elements (`Bd', `D1'...) cannot be nested. */
748:
749: if (MDOC_BLOCK != n->type)
750: return(1);
751:
752: /* LINTED */
753: for (node = mdoc->last->parent; node; node = node->parent)
754: if (MDOC_BLOCK == node->type)
755: if (MDOC_Bd == node->tok)
756: break;
757: if (NULL == node)
758: return(1);
759:
760: return(nerr(mdoc, n, ENESTDISP));
761: }
762:
763:
764: static int
765: pre_bl(PRE_ARGS)
766: {
767: int i, type, width, offset;
768:
769: if (MDOC_BLOCK != n->type)
770: return(1);
771: if (NULL == n->args)
772: return(nerr(mdoc, n, ELISTTYPE));
773:
774: /* Make sure that only one type of list is specified. */
775:
776: type = offset = width = -1;
777:
778: /* LINTED */
779: for (i = 0; i < (int)n->args->argc; i++)
780: switch (n->args->argv[i].arg) {
781: case (MDOC_Bullet):
782: /* FALLTHROUGH */
783: case (MDOC_Dash):
784: /* FALLTHROUGH */
785: case (MDOC_Enum):
786: /* FALLTHROUGH */
787: case (MDOC_Hyphen):
788: /* FALLTHROUGH */
789: case (MDOC_Item):
790: /* FALLTHROUGH */
791: case (MDOC_Tag):
792: /* FALLTHROUGH */
793: case (MDOC_Diag):
794: /* FALLTHROUGH */
795: case (MDOC_Hang):
796: /* FALLTHROUGH */
797: case (MDOC_Ohang):
798: /* FALLTHROUGH */
799: case (MDOC_Inset):
800: /* FALLTHROUGH */
801: case (MDOC_Column):
802: if (-1 == type) {
803: type = n->args->argv[i].arg;
804: break;
805: }
806: return(nerr(mdoc, n, EMULTILIST));
807: case (MDOC_Width):
808: if (-1 == width) {
809: width = n->args->argv[i].arg;
810: break;
811: }
812: return(nerr(mdoc, n, EARGREP));
813: case (MDOC_Offset):
814: if (-1 == offset) {
815: offset = n->args->argv[i].arg;
816: break;
817: }
818: return(nerr(mdoc, n, EARGREP));
819: default:
820: break;
821: }
822:
823: if (-1 == type)
824: return(nerr(mdoc, n, ELISTTYPE));
825:
826: switch (type) {
827: case (MDOC_Column):
828: /* FALLTHROUGH */
829: case (MDOC_Diag):
830: /* FALLTHROUGH */
831: case (MDOC_Inset):
832: /* FALLTHROUGH */
833: case (MDOC_Item):
834: if (-1 == width)
835: break;
836: return(mdoc_nwarn(mdoc, n, WARN_SYNTAX,
837: "superfluous %s argument",
838: mdoc_argnames[MDOC_Width]));
839: case (MDOC_Tag):
840: if (-1 != width)
841: break;
842: return(mdoc_nwarn(mdoc, n, WARN_SYNTAX,
843: "suggest %s argument",
844: mdoc_argnames[MDOC_Width]));
845: default:
846: break;
847: }
848:
849: return(1);
850: }
851:
852:
853: static int
854: pre_bd(PRE_ARGS)
855: {
856: int i, type, err;
857:
858: if (MDOC_BLOCK != n->type)
859: return(1);
860: if (NULL == n->args)
861: return(nerr(mdoc, n, EDISPTYPE));
862:
863: /* Make sure that only one type of display is specified. */
864:
865: /* LINTED */
866: for (i = 0, err = type = 0; ! err &&
867: i < (int)n->args->argc; i++)
868: switch (n->args->argv[i].arg) {
869: case (MDOC_Ragged):
870: /* FALLTHROUGH */
871: case (MDOC_Unfilled):
872: /* FALLTHROUGH */
873: case (MDOC_Filled):
874: /* FALLTHROUGH */
875: case (MDOC_Literal):
876: /* FALLTHROUGH */
877: case (MDOC_File):
878: if (0 == type++)
879: break;
880: return(nerr(mdoc, n, EMULTIDISP));
881: default:
882: break;
883: }
884:
885: if (type)
886: return(1);
887: return(nerr(mdoc, n, EDISPTYPE));
888: }
889:
890:
891: static int
892: pre_ss(PRE_ARGS)
893: {
894:
895: if (MDOC_BLOCK != n->type)
896: return(1);
897: return(check_parent(mdoc, n, MDOC_Sh, MDOC_BODY));
898: }
899:
900:
901: static int
902: pre_sh(PRE_ARGS)
903: {
904:
905: if (MDOC_BLOCK != n->type)
906: return(1);
907: return(check_parent(mdoc, n, -1, MDOC_ROOT));
908: }
909:
910:
911: static int
912: pre_it(PRE_ARGS)
913: {
914:
915: if (MDOC_BLOCK != n->type)
916: return(1);
917: return(check_parent(mdoc, n, MDOC_Bl, MDOC_BODY));
918: }
919:
920:
921: static int
922: pre_an(PRE_ARGS)
923: {
924:
925: if (NULL == n->args || 1 == n->args->argc)
926: return(1);
927: return(mdoc_nerr(mdoc, n, "only one argument allowed"));
928: }
929:
930:
931: static int
932: pre_lb(PRE_ARGS)
933: {
934:
935: return(check_sec(mdoc, n, SEC_LIBRARY, SEC_CUSTOM));
936: }
937:
938:
939: static int
940: pre_rv(PRE_ARGS)
941: {
942:
943: if ( ! check_msec(mdoc, n, 2, 3, 0))
944: return(0);
945: return(check_stdarg(mdoc, n));
946: }
947:
948:
949: static int
950: pre_ex(PRE_ARGS)
951: {
952:
953: if ( ! check_msec(mdoc, n, 1, 6, 8, 0))
954: return(0);
955: return(check_stdarg(mdoc, n));
956: }
957:
958:
959: static int
960: pre_er(PRE_ARGS)
961: {
962:
963: return(check_msec(mdoc, n, 2, 0));
964: }
965:
966:
967: static int
968: pre_cd(PRE_ARGS)
969: {
970:
971: return(check_msec(mdoc, n, 4, 0));
972: }
973:
974:
975: static int
976: pre_prologue(PRE_ARGS)
977: {
978:
979: return(check_sec(mdoc, n, SEC_PROLOGUE, SEC_CUSTOM));
980: }
981:
982:
983: static int
984: pre_dt(PRE_ARGS)
985: {
986:
987: if (0 == mdoc->meta.date || mdoc->meta.os)
988: if ( ! nwarn(mdoc, n, WPROLOOO))
989: return(0);
990: if (mdoc->meta.title)
991: if ( ! nwarn(mdoc, n, WPROLREP))
992: return(0);
993: return(1);
994: }
995:
996:
997: static int
998: pre_os(PRE_ARGS)
999: {
1000:
1001: if (NULL == mdoc->meta.title || 0 == mdoc->meta.date)
1002: if ( ! nwarn(mdoc, n, WPROLOOO))
1003: return(0);
1004: if (mdoc->meta.os)
1005: if ( ! nwarn(mdoc, n, WPROLREP))
1006: return(0);
1007: return(1);
1008: }
1009:
1010:
1011: static int
1012: pre_dd(PRE_ARGS)
1013: {
1014:
1015: if (mdoc->meta.title || mdoc->meta.os)
1016: if ( ! nwarn(mdoc, n, WPROLOOO))
1017: return(0);
1018: if (mdoc->meta.date)
1019: if ( ! nwarn(mdoc, n, WPROLREP))
1020: return(0);
1021: return(1);
1022: }
1023:
1024:
1025: static int
1026: post_bf(POST_ARGS)
1027: {
1028: char *p;
1029: struct mdoc_node *head;
1030:
1031: if (MDOC_BLOCK != mdoc->last->type)
1032: return(1);
1033:
1034: head = mdoc->last->head;
1035:
1036: if (NULL == mdoc->last->args) {
1037: if (NULL == head->child ||
1038: MDOC_TEXT != head->child->type)
1039: return(mdoc_err(mdoc, "text argument expected"));
1040:
1041: p = head->child->string;
1.2 ! kristaps 1042: if (0 == strcmp(p, "Em"))
1.1 kristaps 1043: return(1);
1.2 ! kristaps 1044: else if (0 == strcmp(p, "Li"))
1.1 kristaps 1045: return(1);
1.2 ! kristaps 1046: else if (0 == strcmp(p, "Sm"))
1.1 kristaps 1047: return(1);
1048: return(mdoc_nerr(mdoc, head->child, "invalid font"));
1049: }
1050:
1051: if (head->child)
1052: return(mdoc_err(mdoc, "one argument expected"));
1053:
1054: return(1);
1055: }
1056:
1057:
1058: static int
1059: post_nm(POST_ARGS)
1060: {
1061:
1062: if (mdoc->last->child)
1063: return(1);
1064: if (mdoc->meta.name)
1065: return(1);
1.2 ! kristaps 1066: return(verr(mdoc, ENAME));
1.1 kristaps 1067: }
1068:
1069:
1070: static int
1071: post_at(POST_ARGS)
1072: {
1073:
1074: if (NULL == mdoc->last->child)
1075: return(1);
1076: if (MDOC_TEXT != mdoc->last->child->type)
1.2 ! kristaps 1077: return(verr(mdoc, EATT));
1.1 kristaps 1078: if (mdoc_a2att(mdoc->last->child->string))
1079: return(1);
1.2 ! kristaps 1080: return(verr(mdoc, EATT));
1.1 kristaps 1081: }
1082:
1083:
1084: static int
1085: post_an(POST_ARGS)
1086: {
1087:
1088: if (mdoc->last->args) {
1089: if (NULL == mdoc->last->child)
1090: return(1);
1.2 ! kristaps 1091: return(verr(mdoc, ELINE));
1.1 kristaps 1092: }
1093:
1094: if (mdoc->last->child)
1095: return(1);
1.2 ! kristaps 1096: return(verr(mdoc, ELINE));
1.1 kristaps 1097: }
1098:
1099:
1100: static int
1101: post_args(POST_ARGS)
1102: {
1103:
1104: if (mdoc->last->args)
1105: return(1);
1.2 ! kristaps 1106: return(verr(mdoc, ELINE));
1.1 kristaps 1107: }
1108:
1109:
1110: static int
1111: post_it(POST_ARGS)
1112: {
1113: int type, i, cols;
1114: struct mdoc_node *n, *c;
1115:
1116: if (MDOC_BLOCK != mdoc->last->type)
1117: return(1);
1118:
1119: n = mdoc->last->parent->parent;
1120: if (NULL == n->args)
1.2 ! kristaps 1121: return(verr(mdoc, ELISTTYPE));
1.1 kristaps 1122:
1123: /* Some types require block-head, some not. */
1124:
1125: /* LINTED */
1126: for (cols = type = -1, i = 0; -1 == type &&
1127: i < (int)n->args->argc; i++)
1128: switch (n->args->argv[i].arg) {
1129: case (MDOC_Tag):
1130: /* FALLTHROUGH */
1131: case (MDOC_Diag):
1132: /* FALLTHROUGH */
1133: case (MDOC_Hang):
1134: /* FALLTHROUGH */
1135: case (MDOC_Ohang):
1136: /* FALLTHROUGH */
1137: case (MDOC_Inset):
1138: /* FALLTHROUGH */
1139: case (MDOC_Bullet):
1140: /* FALLTHROUGH */
1141: case (MDOC_Dash):
1142: /* FALLTHROUGH */
1143: case (MDOC_Enum):
1144: /* FALLTHROUGH */
1145: case (MDOC_Hyphen):
1146: /* FALLTHROUGH */
1147: case (MDOC_Item):
1148: type = n->args->argv[i].arg;
1149: break;
1150: case (MDOC_Column):
1151: type = n->args->argv[i].arg;
1152: cols = (int)n->args->argv[i].sz;
1153: break;
1154: default:
1155: break;
1156: }
1157:
1158: if (-1 == type)
1.2 ! kristaps 1159: return(verr(mdoc, ELISTTYPE));
1.1 kristaps 1160:
1161: switch (type) {
1162: case (MDOC_Tag):
1163: if (NULL == mdoc->last->head->child)
1.2 ! kristaps 1164: if ( ! vwarn(mdoc, WLINE))
1.1 kristaps 1165: return(0);
1166: break;
1167: case (MDOC_Hang):
1168: /* FALLTHROUGH */
1169: case (MDOC_Ohang):
1170: /* FALLTHROUGH */
1171: case (MDOC_Inset):
1172: /* FALLTHROUGH */
1173: case (MDOC_Diag):
1174: if (NULL == mdoc->last->head->child)
1.2 ! kristaps 1175: if ( ! vwarn(mdoc, WLINE))
1.1 kristaps 1176: return(0);
1177: if (NULL == mdoc->last->body->child)
1.2 ! kristaps 1178: if ( ! vwarn(mdoc, WMULTILINE))
1.1 kristaps 1179: return(0);
1180: break;
1181: case (MDOC_Bullet):
1182: /* FALLTHROUGH */
1183: case (MDOC_Dash):
1184: /* FALLTHROUGH */
1185: case (MDOC_Enum):
1186: /* FALLTHROUGH */
1187: case (MDOC_Hyphen):
1188: /* FALLTHROUGH */
1189: case (MDOC_Item):
1190: if (mdoc->last->head->child)
1.2 ! kristaps 1191: if ( ! vwarn(mdoc, WNOLINE))
1.1 kristaps 1192: return(0);
1193: if (NULL == mdoc->last->body->child)
1.2 ! kristaps 1194: if ( ! vwarn(mdoc, WMULTILINE))
1.1 kristaps 1195: return(0);
1196: break;
1197: case (MDOC_Column):
1198: if (NULL == mdoc->last->head->child)
1.2 ! kristaps 1199: if ( ! vwarn(mdoc, WLINE))
1.1 kristaps 1200: return(0);
1201: if (mdoc->last->body->child)
1.2 ! kristaps 1202: if ( ! vwarn(mdoc, WNOMULTILINE))
1.1 kristaps 1203: return(0);
1204: c = mdoc->last->child;
1205: for (i = 0; c && MDOC_HEAD == c->type; c = c->next)
1206: i++;
1207: if (i == cols)
1208: break;
1209: return(mdoc_err(mdoc, "column mismatch (have "
1210: "%d, want %d)", i, cols));
1211: default:
1212: break;
1213: }
1214:
1215: return(1);
1216: }
1217:
1218:
1219: static int
1220: post_bl(POST_ARGS)
1221: {
1222: struct mdoc_node *n;
1223:
1224: if (MDOC_BODY != mdoc->last->type)
1225: return(1);
1226: if (NULL == mdoc->last->child)
1227: return(1);
1228:
1229: /* LINTED */
1230: for (n = mdoc->last->child; n; n = n->next) {
1231: if (MDOC_BLOCK == n->type)
1232: if (MDOC_It == n->tok)
1233: continue;
1234: return(mdoc_nerr(mdoc, n, "bad child of parent %s",
1235: mdoc_macronames[mdoc->last->tok]));
1236: }
1237:
1238: return(1);
1239: }
1240:
1241:
1242: static int
1243: ebool(struct mdoc *mdoc)
1244: {
1245: struct mdoc_node *n;
1246:
1247: /* LINTED */
1248: for (n = mdoc->last->child; n; n = n->next) {
1249: if (MDOC_TEXT != n->type)
1250: break;
1.2 ! kristaps 1251: if (0 == strcmp(n->string, "on"))
1.1 kristaps 1252: continue;
1.2 ! kristaps 1253: if (0 == strcmp(n->string, "off"))
1.1 kristaps 1254: continue;
1255: break;
1256: }
1257:
1258: if (NULL == n)
1259: return(1);
1260: return(nerr(mdoc, n, EBOOL));
1261: }
1262:
1263:
1264: static int
1265: post_root(POST_ARGS)
1266: {
1267:
1268: if (NULL == mdoc->first->child)
1.2 ! kristaps 1269: return(verr(mdoc, ENODATA));
1.1 kristaps 1270: if (SEC_PROLOGUE == mdoc->lastnamed)
1.2 ! kristaps 1271: return(verr(mdoc, ENOPROLOGUE));
1.1 kristaps 1272:
1273: if (MDOC_BLOCK != mdoc->first->child->type)
1.2 ! kristaps 1274: return(verr(mdoc, ENODATA));
1.1 kristaps 1275: if (MDOC_Sh != mdoc->first->child->tok)
1.2 ! kristaps 1276: return(verr(mdoc, ENODATA));
1.1 kristaps 1277:
1278: return(1);
1279: }
1280:
1281:
1282: static int
1283: post_st(POST_ARGS)
1284: {
1285:
1286: if (mdoc_a2st(mdoc->last->child->string))
1287: return(1);
1.2 ! kristaps 1288: return(vwarn(mdoc, WBADSTAND));
1.1 kristaps 1289: }
1290:
1291:
1292: static int
1293: post_sh(POST_ARGS)
1294: {
1295:
1296: if (MDOC_HEAD == mdoc->last->type)
1297: return(post_sh_head(mdoc));
1298: if (MDOC_BODY == mdoc->last->type)
1299: return(post_sh_body(mdoc));
1300:
1301: return(1);
1302: }
1303:
1304:
1305: static int
1306: post_sh_body(POST_ARGS)
1307: {
1308: struct mdoc_node *n;
1309:
1310: if (SEC_NAME != mdoc->lastnamed)
1311: return(1);
1312:
1313: /*
1314: * Warn if the NAME section doesn't contain the `Nm' and `Nd'
1315: * macros (can have multiple `Nm' and one `Nd'). Note that the
1316: * children of the BODY declaration can also be "text".
1317: */
1318:
1319: if (NULL == (n = mdoc->last->child))
1.2 ! kristaps 1320: return(vwarn(mdoc, WNAMESECINC));
1.1 kristaps 1321:
1322: for ( ; n && n->next; n = n->next) {
1323: if (MDOC_ELEM == n->type && MDOC_Nm == n->tok)
1324: continue;
1325: if (MDOC_TEXT == n->type)
1326: continue;
1.2 ! kristaps 1327: if ( ! vwarn(mdoc, WNAMESECINC))
1.1 kristaps 1328: return(0);
1329: }
1330:
1331: if (MDOC_ELEM == n->type && MDOC_Nd == n->tok)
1332: return(1);
1.2 ! kristaps 1333: return(vwarn(mdoc, WNAMESECINC));
1.1 kristaps 1334: }
1335:
1336:
1337: static int
1338: post_sh_head(POST_ARGS)
1339: {
1.2 ! kristaps 1340: char buf[64];
! 1341: enum mdoc_sec sec;
! 1342: const struct mdoc_node *n;
1.1 kristaps 1343:
1344: /*
1345: * Process a new section. Sections are either "named" or
1346: * "custom"; custom sections are user-defined, while named ones
1347: * usually follow a conventional order and may only appear in
1348: * certain manual sections.
1349: */
1350:
1351: assert(MDOC_Sh == mdoc->last->tok);
1352:
1.2 ! kristaps 1353: /* This is just concat() inlined, which is irritating. */
! 1354:
! 1355: for (n = mdoc->last->child; n; n = n->next) {
! 1356: assert(MDOC_TEXT == n->type);
! 1357: if (strlcat(buf, n->string, 64) >= 64)
! 1358: return(nerr(mdoc, n, ETOOLONG));
! 1359: if (NULL == n->next)
! 1360: continue;
! 1361: if (strlcat(buf, " ", 64) >= 64)
! 1362: return(nerr(mdoc, n, ETOOLONG));
! 1363: }
1.1 kristaps 1364:
1365: sec = mdoc_atosec(buf);
1366:
1367: /* The NAME section should always be first. */
1368:
1369: if (SEC_BODY == mdoc->lastnamed && SEC_NAME != sec)
1.2 ! kristaps 1370: return(vwarn(mdoc, WSECOOO));
1.1 kristaps 1371: if (SEC_CUSTOM == sec)
1372: return(1);
1373:
1374: /* Check for repeated or out-of-order sections. */
1375:
1376: if (sec == mdoc->lastnamed)
1.2 ! kristaps 1377: return(vwarn(mdoc, WSECREP));
1.1 kristaps 1378: if (sec < mdoc->lastnamed)
1.2 ! kristaps 1379: return(vwarn(mdoc, WSECOOO));
1.1 kristaps 1380:
1381: /* Check particular section/manual section conventions. */
1382:
1383: switch (sec) {
1384: case (SEC_LIBRARY):
1385: switch (mdoc->meta.msec) {
1386: case (2):
1387: /* FALLTHROUGH */
1388: case (3):
1389: break;
1390: default:
1.2 ! kristaps 1391: return(vwarn(mdoc, WWRONGMSEC));
1.1 kristaps 1392: }
1393: break;
1394: default:
1395: break;
1396: }
1397:
1398: return(1);
1399: }
1400:
1401:
1402: static int
1403: pre_fd(PRE_ARGS)
1404: {
1405:
1406: return(check_sec(mdoc, n, SEC_SYNOPSIS, SEC_CUSTOM));
1407: }