Annotation of src/usr.bin/mandoc/man_macro.c, Revision 1.15
1.15 ! schwarze 1: /* $Id: man_macro.c,v 1.14 2010/04/02 11:37:07 schwarze Exp $ */
1.1 kristaps 2: /*
1.2 schwarze 3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 8: *
1.2 schwarze 9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 16: */
17: #include <assert.h>
18: #include <ctype.h>
19: #include <stdlib.h>
20: #include <string.h>
21:
22: #include "libman.h"
23:
1.12 schwarze 24: enum rew {
25: REW_REWIND,
26: REW_NOHALT,
1.13 schwarze 27: REW_HALT
1.12 schwarze 28: };
1.6 schwarze 29:
1.12 schwarze 30: static int blk_close(MACRO_PROT_ARGS);
31: static int blk_dotted(MACRO_PROT_ARGS);
32: static int blk_exp(MACRO_PROT_ARGS);
33: static int blk_imp(MACRO_PROT_ARGS);
1.15 ! schwarze 34: static int blk_cond(MACRO_PROT_ARGS);
1.6 schwarze 35: static int in_line_eoln(MACRO_PROT_ARGS);
36:
1.12 schwarze 37: static int rew_scope(enum man_type,
38: struct man *, enum mant);
39: static enum rew rew_dohalt(enum mant, enum man_type,
1.6 schwarze 40: const struct man_node *);
1.12 schwarze 41: static enum rew rew_block(enum mant, enum man_type,
1.7 schwarze 42: const struct man_node *);
1.13 schwarze 43: static int rew_warn(struct man *,
44: struct man_node *, enum merr);
1.6 schwarze 45:
46: const struct man_macro __man_macros[MAN_MAX] = {
1.11 schwarze 47: { in_line_eoln, MAN_NSCOPED }, /* br */
1.6 schwarze 48: { in_line_eoln, 0 }, /* TH */
1.7 schwarze 49: { blk_imp, MAN_SCOPED }, /* SH */
50: { blk_imp, MAN_SCOPED }, /* SS */
51: { blk_imp, MAN_SCOPED | MAN_FSCOPED }, /* TP */
1.6 schwarze 52: { blk_imp, 0 }, /* LP */
53: { blk_imp, 0 }, /* PP */
54: { blk_imp, 0 }, /* P */
55: { blk_imp, 0 }, /* IP */
56: { blk_imp, 0 }, /* HP */
57: { in_line_eoln, MAN_SCOPED }, /* SM */
58: { in_line_eoln, MAN_SCOPED }, /* SB */
59: { in_line_eoln, 0 }, /* BI */
60: { in_line_eoln, 0 }, /* IB */
61: { in_line_eoln, 0 }, /* BR */
62: { in_line_eoln, 0 }, /* RB */
63: { in_line_eoln, MAN_SCOPED }, /* R */
64: { in_line_eoln, MAN_SCOPED }, /* B */
65: { in_line_eoln, MAN_SCOPED }, /* I */
66: { in_line_eoln, 0 }, /* IR */
67: { in_line_eoln, 0 }, /* RI */
1.11 schwarze 68: { in_line_eoln, MAN_NSCOPED }, /* na */
1.6 schwarze 69: { in_line_eoln, 0 }, /* i */
1.11 schwarze 70: { in_line_eoln, MAN_NSCOPED }, /* sp */
1.6 schwarze 71: { in_line_eoln, 0 }, /* nf */
72: { in_line_eoln, 0 }, /* fi */
73: { in_line_eoln, 0 }, /* r */
1.7 schwarze 74: { blk_close, 0 }, /* RE */
1.12 schwarze 75: { blk_exp, MAN_EXPLICIT }, /* RS */
1.7 schwarze 76: { in_line_eoln, 0 }, /* DT */
1.8 schwarze 77: { in_line_eoln, 0 }, /* UC */
1.9 schwarze 78: { in_line_eoln, 0 }, /* PD */
1.12 schwarze 79: { in_line_eoln, MAN_NSCOPED }, /* Sp */
1.10 schwarze 80: { in_line_eoln, 0 }, /* Vb */
81: { in_line_eoln, 0 }, /* Ve */
1.12 schwarze 82: { blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* de */
83: { blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* dei */
84: { blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* am */
85: { blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* ami */
86: { blk_exp, MAN_EXPLICIT | MAN_NOCLOSE}, /* ig */
87: { blk_dotted, 0 }, /* . */
1.15 ! schwarze 88: { blk_cond, 0 }, /* if */
! 89: { blk_cond, 0 }, /* ie */
! 90: { blk_cond, 0 }, /* el */
1.6 schwarze 91: };
1.1 kristaps 92:
1.6 schwarze 93: const struct man_macro * const man_macros = __man_macros;
1.1 kristaps 94:
95:
1.13 schwarze 96: /*
97: * Warn when "n" is an explicit non-roff macro.
98: */
99: static int
100: rew_warn(struct man *m, struct man_node *n, enum merr er)
101: {
102:
103: if (er == WERRMAX || MAN_BLOCK != n->type)
104: return(1);
105: if (MAN_VALID & n->flags)
106: return(1);
107: if ( ! (MAN_EXPLICIT & man_macros[n->tok].flags))
108: return(1);
109: if (MAN_NOCLOSE & man_macros[n->tok].flags)
110: return(1);
111: return(man_nwarn(m, n, er));
112: }
113:
114:
115: /*
116: * Rewind scope. If a code "er" != WERRMAX has been provided, it will
117: * be used if an explicit block scope is being closed out.
118: */
1.1 kristaps 119: int
1.13 schwarze 120: man_unscope(struct man *m, const struct man_node *n, enum merr er)
1.1 kristaps 121: {
122:
1.6 schwarze 123: assert(n);
124:
125: /* LINTED */
126: while (m->last != n) {
1.13 schwarze 127: if ( ! rew_warn(m, m->last, er))
128: return(0);
1.6 schwarze 129: if ( ! man_valid_post(m))
130: return(0);
131: if ( ! man_action_post(m))
132: return(0);
133: m->last = m->last->parent;
134: assert(m->last);
135: }
136:
1.13 schwarze 137: if ( ! rew_warn(m, m->last, er))
138: return(0);
1.6 schwarze 139: if ( ! man_valid_post(m))
1.1 kristaps 140: return(0);
1.12 schwarze 141: if ( ! man_action_post(m))
142: return(0);
143:
144: m->next = MAN_ROOT == m->last->type ?
145: MAN_NEXT_CHILD : MAN_NEXT_SIBLING;
146:
147: return(1);
1.6 schwarze 148: }
1.1 kristaps 149:
150:
1.12 schwarze 151: static enum rew
152: rew_block(enum mant ntok, enum man_type type, const struct man_node *n)
1.7 schwarze 153: {
154:
155: if (MAN_BLOCK == type && ntok == n->parent->tok &&
156: MAN_BODY == n->parent->type)
157: return(REW_REWIND);
158: return(ntok == n->tok ? REW_HALT : REW_NOHALT);
159: }
160:
161:
1.6 schwarze 162: /*
163: * There are three scope levels: scoped to the root (all), scoped to the
164: * section (all less sections), and scoped to subsections (all less
165: * sections and subsections).
166: */
1.12 schwarze 167: static enum rew
168: rew_dohalt(enum mant tok, enum man_type type, const struct man_node *n)
1.6 schwarze 169: {
1.12 schwarze 170: enum rew c;
1.1 kristaps 171:
1.13 schwarze 172: /* We cannot progress beyond the root ever. */
1.6 schwarze 173: if (MAN_ROOT == n->type)
174: return(REW_HALT);
1.13 schwarze 175:
1.6 schwarze 176: assert(n->parent);
1.13 schwarze 177:
178: /* Normal nodes shouldn't go to the level of the root. */
1.6 schwarze 179: if (MAN_ROOT == n->parent->type)
180: return(REW_REWIND);
1.13 schwarze 181:
182: /* Already-validated nodes should be closed out. */
1.6 schwarze 183: if (MAN_VALID & n->flags)
184: return(REW_NOHALT);
185:
1.13 schwarze 186: /* First: rewind to ourselves. */
1.7 schwarze 187: if (type == n->type && tok == n->tok)
188: return(REW_REWIND);
189:
1.13 schwarze 190: /*
191: * If we're a roff macro, then we can close out anything that
192: * stands between us and our parent context.
193: */
194: if (MAN_NOCLOSE & man_macros[tok].flags)
195: return(REW_NOHALT);
196:
197: /*
198: * Don't clobber roff macros: this is a bit complicated. If the
199: * current macro is a roff macro, halt immediately and don't
200: * rewind. If it's not, and the parent is, then close out the
201: * current scope and halt at the parent.
202: */
203: if (MAN_NOCLOSE & man_macros[n->tok].flags)
204: return(REW_HALT);
205: if (MAN_NOCLOSE & man_macros[n->parent->tok].flags)
206: return(REW_REWIND);
207:
208: /*
209: * Next follow the implicit scope-smashings as defined by man.7:
210: * section, sub-section, etc.
211: */
212:
1.6 schwarze 213: switch (tok) {
214: case (MAN_SH):
215: break;
216: case (MAN_SS):
217: /* Rewind to a section, if a block. */
1.7 schwarze 218: if (REW_NOHALT != (c = rew_block(MAN_SH, type, n)))
219: return(c);
220: break;
221: case (MAN_RS):
222: /* Rewind to a subsection, if a block. */
223: if (REW_NOHALT != (c = rew_block(MAN_SS, type, n)))
224: return(c);
225: /* Rewind to a section, if a block. */
226: if (REW_NOHALT != (c = rew_block(MAN_SH, type, n)))
227: return(c);
1.6 schwarze 228: break;
229: default:
1.7 schwarze 230: /* Rewind to an offsetter, if a block. */
231: if (REW_NOHALT != (c = rew_block(MAN_RS, type, n)))
232: return(c);
1.6 schwarze 233: /* Rewind to a subsection, if a block. */
1.7 schwarze 234: if (REW_NOHALT != (c = rew_block(MAN_SS, type, n)))
235: return(c);
1.6 schwarze 236: /* Rewind to a section, if a block. */
1.7 schwarze 237: if (REW_NOHALT != (c = rew_block(MAN_SH, type, n)))
238: return(c);
1.6 schwarze 239: break;
1.1 kristaps 240: }
241:
1.6 schwarze 242: return(REW_NOHALT);
243: }
1.1 kristaps 244:
245:
1.6 schwarze 246: /*
247: * Rewinding entails ascending the parse tree until a coherent point,
248: * for example, the `SH' macro will close out any intervening `SS'
249: * scopes. When a scope is closed, it must be validated and actioned.
250: */
251: static int
1.12 schwarze 252: rew_scope(enum man_type type, struct man *m, enum mant tok)
1.6 schwarze 253: {
254: struct man_node *n;
1.12 schwarze 255: enum rew c;
1.1 kristaps 256:
1.6 schwarze 257: /* LINTED */
258: for (n = m->last; n; n = n->parent) {
259: /*
260: * Whether we should stop immediately (REW_HALT), stop
261: * and rewind until this point (REW_REWIND), or keep
262: * rewinding (REW_NOHALT).
263: */
264: c = rew_dohalt(tok, type, n);
265: if (REW_HALT == c)
266: return(1);
267: if (REW_REWIND == c)
1.1 kristaps 268: break;
269: }
270:
1.13 schwarze 271: /*
272: * Rewind until the current point. Warn if we're a roff
273: * instruction that's mowing over explicit scopes.
274: */
275: assert(n);
276: if (MAN_NOCLOSE & man_macros[tok].flags)
277: return(man_unscope(m, n, WROFFSCOPE));
1.6 schwarze 278:
1.13 schwarze 279: return(man_unscope(m, n, WERRMAX));
1.6 schwarze 280: }
281:
1.1 kristaps 282:
1.12 schwarze 283: /*
1.15 ! schwarze 284: * Closure for brace blocks (if, ie, el).
! 285: */
! 286: int
! 287: man_brace_close(struct man *m, int line, int ppos)
! 288: {
! 289: struct man_node *nif;
! 290:
! 291: nif = m->last->parent;
! 292: while (nif &&
! 293: MAN_if != nif->tok &&
! 294: MAN_ie != nif->tok &&
! 295: MAN_el != nif->tok)
! 296: nif = nif->parent;
! 297:
! 298: if (NULL == nif)
! 299: return(man_pwarn(m, line, ppos, WNOSCOPE));
! 300:
! 301: if (MAN_ie != nif->tok || MAN_USE & nif->flags)
! 302: m->flags &= ~MAN_EL_USE;
! 303: else
! 304: m->flags |= MAN_EL_USE;
! 305:
! 306: if (MAN_USE & nif->flags) {
! 307: if (nif->prev) {
! 308: nif->prev->next = nif->child;
! 309: nif->child->prev = nif->prev;
! 310: nif->prev = NULL;
! 311: } else {
! 312: nif->parent->child = nif->child;
! 313: }
! 314: nif->parent->nchild += nif->nchild - 1;
! 315: while (nif->child) {
! 316: nif->child->parent = nif->parent;
! 317: nif->child = nif->child->next;
! 318: }
! 319: nif->nchild = 0;
! 320: nif->parent = NULL;
! 321: }
! 322: man_node_delete(m, nif);
! 323: return(1);
! 324: }
! 325:
! 326:
! 327: /*
1.12 schwarze 328: * Closure for dotted macros (de, dei, am, ami, ign). This must handle
329: * any of these as the parent node, so it needs special handling.
330: * Beyond this, it's the same as blk_close().
331: */
332: /* ARGSUSED */
333: int
334: blk_dotted(MACRO_PROT_ARGS)
335: {
336: enum mant ntok;
337: struct man_node *nn;
338:
1.13 schwarze 339: /* Check for any of the following parents... */
340:
1.12 schwarze 341: for (nn = m->last->parent; nn; nn = nn->parent)
342: if (nn->tok == MAN_de || nn->tok == MAN_dei ||
343: nn->tok == MAN_am ||
344: nn->tok == MAN_ami ||
345: nn->tok == MAN_ig) {
346: ntok = nn->tok;
347: break;
348: }
349:
350: if (NULL == nn) {
351: if ( ! man_pwarn(m, line, ppos, WNOSCOPE))
352: return(0);
353: return(1);
354: }
355:
356: if ( ! rew_scope(MAN_BODY, m, ntok))
357: return(0);
358: if ( ! rew_scope(MAN_BLOCK, m, ntok))
359: return(0);
360:
1.14 schwarze 361: /*
362: * Restore flags set when we got here and also stipulate that we
363: * don't post-process the line when exiting the macro op
364: * function in man_pmacro(). See blk_exp().
1.13 schwarze 365: */
366:
1.14 schwarze 367: m->flags = m->svflags | MAN_ILINE;
368: m->next = m->svnext;
1.12 schwarze 369: return(1);
370: }
371:
372:
373: /*
374: * Close out a generic explicit macro.
375: */
1.7 schwarze 376: /* ARGSUSED */
377: int
378: blk_close(MACRO_PROT_ARGS)
379: {
1.12 schwarze 380: enum mant ntok;
1.7 schwarze 381: const struct man_node *nn;
382:
383: switch (tok) {
384: case (MAN_RE):
385: ntok = MAN_RS;
386: break;
387: default:
388: abort();
389: /* NOTREACHED */
390: }
391:
392: for (nn = m->last->parent; nn; nn = nn->parent)
393: if (ntok == nn->tok)
394: break;
395:
396: if (NULL == nn)
397: if ( ! man_pwarn(m, line, ppos, WNOSCOPE))
398: return(0);
399:
400: if ( ! rew_scope(MAN_BODY, m, ntok))
401: return(0);
402: if ( ! rew_scope(MAN_BLOCK, m, ntok))
403: return(0);
1.12 schwarze 404:
1.7 schwarze 405: return(1);
406: }
407:
408:
1.12 schwarze 409: int
410: blk_exp(MACRO_PROT_ARGS)
411: {
412: int w, la;
413: char *p;
414:
415: /*
416: * Close out prior scopes. "Regular" explicit macros cannot be
417: * nested, but we allow roff macros to be placed just about
418: * anywhere.
419: */
420:
421: if ( ! (MAN_NOCLOSE & man_macros[tok].flags)) {
422: if ( ! rew_scope(MAN_BODY, m, tok))
423: return(0);
424: if ( ! rew_scope(MAN_BLOCK, m, tok))
425: return(0);
1.14 schwarze 426: } else {
427: /*
428: * Save our state and next-scope indicator; we restore
429: * it when exiting from the roff instruction block. See
430: * blk_dotted().
431: */
432: m->svflags = m->flags;
433: m->svnext = m->next;
434:
435: /* Make sure we drop any line modes. */
436: m->flags = 0;
1.12 schwarze 437: }
438:
439: if ( ! man_block_alloc(m, line, ppos, tok))
440: return(0);
441: if ( ! man_head_alloc(m, line, ppos, tok))
442: return(0);
443:
444: for (;;) {
445: la = *pos;
446: w = man_args(m, line, pos, buf, &p);
447:
448: if (-1 == w)
449: return(0);
450: if (0 == w)
451: break;
452:
453: if ( ! man_word_alloc(m, line, la, p))
454: return(0);
455: }
456:
457: assert(m);
458: assert(tok != MAN_MAX);
459:
460: if ( ! rew_scope(MAN_HEAD, m, tok))
461: return(0);
462: return(man_body_alloc(m, line, ppos, tok));
463: }
464:
465:
466:
1.6 schwarze 467: /*
468: * Parse an implicit-block macro. These contain a MAN_HEAD and a
469: * MAN_BODY contained within a MAN_BLOCK. Rules for closing out other
470: * scopes, such as `SH' closing out an `SS', are defined in the rew
471: * routines.
472: */
473: int
474: blk_imp(MACRO_PROT_ARGS)
475: {
476: int w, la;
477: char *p;
1.7 schwarze 478: struct man_node *n;
1.6 schwarze 479:
480: /* Close out prior scopes. */
1.1 kristaps 481:
1.6 schwarze 482: if ( ! rew_scope(MAN_BODY, m, tok))
1.1 kristaps 483: return(0);
1.6 schwarze 484: if ( ! rew_scope(MAN_BLOCK, m, tok))
1.1 kristaps 485: return(0);
486:
1.6 schwarze 487: /* Allocate new block & head scope. */
488:
489: if ( ! man_block_alloc(m, line, ppos, tok))
490: return(0);
491: if ( ! man_head_alloc(m, line, ppos, tok))
492: return(0);
1.1 kristaps 493:
1.7 schwarze 494: n = m->last;
495:
1.6 schwarze 496: /* Add line arguments. */
1.1 kristaps 497:
1.6 schwarze 498: for (;;) {
499: la = *pos;
500: w = man_args(m, line, pos, buf, &p);
1.1 kristaps 501:
1.6 schwarze 502: if (-1 == w)
1.1 kristaps 503: return(0);
1.6 schwarze 504: if (0 == w)
505: break;
506:
507: if ( ! man_word_alloc(m, line, la, p))
1.1 kristaps 508: return(0);
509: }
510:
1.6 schwarze 511: /* Close out head and open body (unless MAN_SCOPE). */
512:
513: if (MAN_SCOPED & man_macros[tok].flags) {
1.7 schwarze 514: /* If we're forcing scope (`TP'), keep it open. */
515: if (MAN_FSCOPED & man_macros[tok].flags) {
516: m->flags |= MAN_BLINE;
517: return(1);
518: } else if (n == m->last) {
519: m->flags |= MAN_BLINE;
520: return(1);
521: }
522: }
523:
524: if ( ! rew_scope(MAN_HEAD, m, tok))
1.1 kristaps 525: return(0);
1.6 schwarze 526: return(man_body_alloc(m, line, ppos, tok));
1.15 ! schwarze 527: }
! 528:
! 529:
! 530: /*
! 531: * Parse a conditional roff instruction.
! 532: */
! 533: int
! 534: blk_cond(MACRO_PROT_ARGS)
! 535: {
! 536: char *p = buf + *pos;
! 537: int use;
! 538:
! 539: if (MAN_el == tok)
! 540: use = m->flags & MAN_EL_USE;
! 541: else {
! 542: use = 'n' == *p++;
! 543: /* XXX skip the rest of the condition for now */
! 544: while (*p && !isblank(*p))
! 545: p++;
! 546: }
! 547: m->flags &= ~MAN_EL_USE;
! 548:
! 549: /* advance to the code controlled by the condition */
! 550: while (*p && isblank(*p))
! 551: p++;
! 552: if ('\0' == *p)
! 553: return(1);
! 554:
! 555: /* single-line body */
! 556: if (strncmp("\\{", p, 2)) {
! 557: if (use && ! man_parseln(m, line, p))
! 558: return(0);
! 559: if (MAN_ie == tok && !use)
! 560: m->flags |= MAN_EL_USE;
! 561: return(1);
! 562: }
! 563:
! 564: /* multi-line body */
! 565: if ( ! man_block_alloc(m, line, ppos, tok))
! 566: return(0);
! 567: if (use)
! 568: m->last->flags |= MAN_USE;
! 569: p += 2;
! 570: return(*p ? man_parseln(m, line, p) : 1);
1.1 kristaps 571: }
572:
573:
1.6 schwarze 574: int
575: in_line_eoln(MACRO_PROT_ARGS)
1.1 kristaps 576: {
1.6 schwarze 577: int w, la;
578: char *p;
579: struct man_node *n;
1.1 kristaps 580:
1.6 schwarze 581: if ( ! man_elem_alloc(m, line, ppos, tok))
1.1 kristaps 582: return(0);
583:
1.6 schwarze 584: n = m->last;
1.1 kristaps 585:
1.6 schwarze 586: for (;;) {
587: la = *pos;
588: w = man_args(m, line, pos, buf, &p);
1.1 kristaps 589:
1.6 schwarze 590: if (-1 == w)
591: return(0);
592: if (0 == w)
593: break;
594: if ( ! man_word_alloc(m, line, la, p))
595: return(0);
596: }
1.1 kristaps 597:
1.11 schwarze 598: /*
599: * If no arguments are specified and this is MAN_SCOPED (i.e.,
600: * next-line scoped), then set our mode to indicate that we're
601: * waiting for terms to load into our context.
602: */
603:
1.7 schwarze 604: if (n == m->last && MAN_SCOPED & man_macros[tok].flags) {
1.11 schwarze 605: assert( ! (MAN_NSCOPED & man_macros[tok].flags));
1.6 schwarze 606: m->flags |= MAN_ELINE;
607: return(1);
608: }
1.1 kristaps 609:
1.11 schwarze 610: /* Set ignorable context, if applicable. */
611:
612: if (MAN_NSCOPED & man_macros[tok].flags) {
613: assert( ! (MAN_SCOPED & man_macros[tok].flags));
614: m->flags |= MAN_ILINE;
615: }
616:
1.6 schwarze 617: /*
1.11 schwarze 618: * Rewind our element scope. Note that when TH is pruned, we'll
619: * be back at the root, so make sure that we don't clobber as
620: * its sibling.
1.6 schwarze 621: */
1.1 kristaps 622:
1.6 schwarze 623: for ( ; m->last; m->last = m->last->parent) {
624: if (m->last == n)
625: break;
626: if (m->last->type == MAN_ROOT)
627: break;
628: if ( ! man_valid_post(m))
629: return(0);
630: if ( ! man_action_post(m))
631: return(0);
632: }
1.1 kristaps 633:
1.6 schwarze 634: assert(m->last);
1.1 kristaps 635:
636: /*
1.6 schwarze 637: * Same here regarding whether we're back at the root.
1.1 kristaps 638: */
639:
1.6 schwarze 640: if (m->last->type != MAN_ROOT && ! man_valid_post(m))
641: return(0);
642: if (m->last->type != MAN_ROOT && ! man_action_post(m))
643: return(0);
1.12 schwarze 644:
645: m->next = MAN_ROOT == m->last->type ?
646: MAN_NEXT_CHILD : MAN_NEXT_SIBLING;
1.1 kristaps 647:
1.6 schwarze 648: return(1);
649: }
1.1 kristaps 650:
651:
1.6 schwarze 652: int
653: man_macroend(struct man *m)
654: {
1.1 kristaps 655:
1.13 schwarze 656: return(man_unscope(m, m->first, WEXITSCOPE));
1.6 schwarze 657: }
1.1 kristaps 658:
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