Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.48
1.48 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.47 2010/06/29 17:10:29 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 <stdio.h>
21: #include <string.h>
1.26 schwarze 22: #include <time.h>
1.1 kristaps 23:
1.44 schwarze 24: #include "mandoc.h"
1.1 kristaps 25: #include "libmdoc.h"
1.39 schwarze 26: #include "libmandoc.h"
1.1 kristaps 27:
1.48 ! schwarze 28: enum rew { /* see rew_dohalt() */
! 29: REWIND_NONE,
! 30: REWIND_THIS,
! 31: REWIND_MORE,
! 32: REWIND_LATER,
! 33: REWIND_ERROR,
1.35 schwarze 34: };
1.1 kristaps 35:
1.36 schwarze 36: static int blk_full(MACRO_PROT_ARGS);
37: static int blk_exp_close(MACRO_PROT_ARGS);
38: static int blk_part_exp(MACRO_PROT_ARGS);
39: static int blk_part_imp(MACRO_PROT_ARGS);
40: static int ctx_synopsis(MACRO_PROT_ARGS);
41: static int in_line_eoln(MACRO_PROT_ARGS);
42: static int in_line_argn(MACRO_PROT_ARGS);
43: static int in_line(MACRO_PROT_ARGS);
44: static int obsolete(MACRO_PROT_ARGS);
1.46 schwarze 45: static int phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 46:
47: static int append_delims(struct mdoc *,
48: int, int *, char *);
49: static enum mdoct lookup(enum mdoct, const char *);
50: static enum mdoct lookup_raw(const char *);
1.47 schwarze 51: static int make_pending(struct mdoc_node *, enum mdoc_type,
52: struct mdoc *, int, int);
1.46 schwarze 53: static int phrase(struct mdoc *, int, int, char *);
1.36 schwarze 54: static enum mdoct rew_alt(enum mdoct);
55: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
56: const struct mdoc_node *);
57: static int rew_elem(struct mdoc *, enum mdoct);
58: static int rew_last(struct mdoc *,
59: const struct mdoc_node *);
60: static int rew_sub(enum mdoc_type, struct mdoc *,
61: enum mdoct, int, int);
1.1 kristaps 62:
63: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.4 schwarze 64: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
1.1 kristaps 65: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
66: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
67: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
68: { blk_full, 0 }, /* Sh */
69: { blk_full, 0 }, /* Ss */
1.16 schwarze 70: { in_line_eoln, 0 }, /* Pp */
1.1 kristaps 71: { blk_part_imp, MDOC_PARSED }, /* D1 */
72: { blk_part_imp, MDOC_PARSED }, /* Dl */
73: { blk_full, MDOC_EXPLICIT }, /* Bd */
74: { blk_exp_close, MDOC_EXPLICIT }, /* Ed */
75: { blk_full, MDOC_EXPLICIT }, /* Bl */
76: { blk_exp_close, MDOC_EXPLICIT }, /* El */
77: { blk_full, MDOC_PARSED }, /* It */
78: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.3 schwarze 79: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.15 schwarze 81: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
1.1 kristaps 82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
86: { in_line_eoln, 0 }, /* Ex */
87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
88: { in_line_eoln, 0 }, /* Fd */
89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
1.3 schwarze 91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.11 schwarze 93: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.12 schwarze 95: { blk_full, 0 }, /* Nd */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
97: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
98: { obsolete, 0 }, /* Ot */
99: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
100: { in_line_eoln, 0 }, /* Rv */
101: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
102: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.28 schwarze 103: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
104: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.1 kristaps 105: { in_line_eoln, 0 }, /* %A */
106: { in_line_eoln, 0 }, /* %B */
107: { in_line_eoln, 0 }, /* %D */
108: { in_line_eoln, 0 }, /* %I */
109: { in_line_eoln, 0 }, /* %J */
110: { in_line_eoln, 0 }, /* %N */
111: { in_line_eoln, 0 }, /* %O */
112: { in_line_eoln, 0 }, /* %P */
113: { in_line_eoln, 0 }, /* %R */
114: { in_line_eoln, 0 }, /* %T */
115: { in_line_eoln, 0 }, /* %V */
116: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
117: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
118: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
119: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
120: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
121: { blk_full, MDOC_EXPLICIT }, /* Bf */
122: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
123: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
124: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
125: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
126: { in_line_eoln, 0 }, /* Db */
127: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
128: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
129: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
130: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
131: { blk_exp_close, MDOC_EXPLICIT }, /* Ef */
132: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
133: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
134: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 135: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.1 kristaps 136: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* No */
137: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ns */
138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
139: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
140: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.35 schwarze 141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.1 kristaps 142: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
143: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
144: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
145: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
146: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
147: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
148: { blk_exp_close, MDOC_EXPLICIT }, /* Re */
149: { blk_full, MDOC_EXPLICIT }, /* Rs */
150: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
151: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
152: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
153: { in_line_eoln, 0 }, /* Sm */
154: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
155: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
156: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
157: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
158: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
159: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
160: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
161: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
162: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
163: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
164: { blk_full, MDOC_EXPLICIT }, /* Bk */
165: { blk_exp_close, MDOC_EXPLICIT }, /* Ek */
166: { in_line_eoln, 0 }, /* Bt */
167: { in_line_eoln, 0 }, /* Hf */
168: { obsolete, 0 }, /* Fr */
169: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 170: { in_line, 0 }, /* Lb */
1.16 schwarze 171: { in_line_eoln, 0 }, /* Lp */
1.3 schwarze 172: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
173: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
1.1 kristaps 174: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
175: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
176: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
177: { in_line_eoln, 0 }, /* %C */
178: { obsolete, 0 }, /* Es */
179: { obsolete, 0 }, /* En */
180: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
181: { in_line_eoln, 0 }, /* %Q */
1.13 schwarze 182: { in_line_eoln, 0 }, /* br */
183: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 184: { in_line_eoln, 0 }, /* %U */
1.46 schwarze 185: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
1.1 kristaps 186: };
187:
188: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
189:
190:
191: /*
192: * This is called at the end of parsing. It must traverse up the tree,
193: * closing out open [implicit] scopes. Obviously, open explicit scopes
194: * are errors.
195: */
196: int
1.22 schwarze 197: mdoc_macroend(struct mdoc *m)
1.1 kristaps 198: {
199: struct mdoc_node *n;
200:
201: /* Scan for open explicit scopes. */
202:
1.22 schwarze 203: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 204:
205: for ( ; n; n = n->parent) {
206: if (MDOC_BLOCK != n->type)
207: continue;
208: if ( ! (MDOC_EXPLICIT & mdoc_macros[n->tok].flags))
209: continue;
1.44 schwarze 210: mdoc_nmsg(m, n, MANDOCERR_SYNTSCOPE);
211: return(0);
1.1 kristaps 212: }
213:
1.22 schwarze 214: /* Rewind to the first. */
215:
216: return(rew_last(m, m->first));
1.1 kristaps 217: }
218:
1.22 schwarze 219:
220: /*
221: * Look up a macro from within a subsequent context.
222: */
1.36 schwarze 223: static enum mdoct
224: lookup(enum mdoct from, const char *p)
1.21 schwarze 225: {
1.24 schwarze 226: /* FIXME: make -diag lists be un-PARSED. */
1.21 schwarze 227:
228: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
229: return(MDOC_MAX);
1.24 schwarze 230: return(lookup_raw(p));
1.21 schwarze 231: }
232:
233:
1.22 schwarze 234: /*
235: * Lookup a macro following the initial line macro.
236: */
1.36 schwarze 237: static enum mdoct
1.24 schwarze 238: lookup_raw(const char *p)
1.1 kristaps 239: {
1.36 schwarze 240: enum mdoct res;
1.1 kristaps 241:
1.24 schwarze 242: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.21 schwarze 243: return(MDOC_MAX);
244: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 245: return(res);
246: return(MDOC_MAX);
247: }
248:
249:
250: static int
1.22 schwarze 251: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 252: {
253:
254: assert(to);
255: mdoc->next = MDOC_NEXT_SIBLING;
256:
257: /* LINTED */
258: while (mdoc->last != to) {
259: if ( ! mdoc_valid_post(mdoc))
260: return(0);
261: if ( ! mdoc_action_post(mdoc))
262: return(0);
263: mdoc->last = mdoc->last->parent;
264: assert(mdoc->last);
265: }
266:
267: if ( ! mdoc_valid_post(mdoc))
268: return(0);
269: return(mdoc_action_post(mdoc));
270: }
271:
272:
1.22 schwarze 273: /*
1.48 ! schwarze 274: * For a block closing macro, return the corresponding opening one.
! 275: * Otherwise, return the macro itself.
1.22 schwarze 276: */
1.34 schwarze 277: static enum mdoct
278: rew_alt(enum mdoct tok)
1.1 kristaps 279: {
280: switch (tok) {
281: case (MDOC_Ac):
282: return(MDOC_Ao);
283: case (MDOC_Bc):
284: return(MDOC_Bo);
285: case (MDOC_Brc):
286: return(MDOC_Bro);
287: case (MDOC_Dc):
288: return(MDOC_Do);
289: case (MDOC_Ec):
290: return(MDOC_Eo);
291: case (MDOC_Ed):
292: return(MDOC_Bd);
293: case (MDOC_Ef):
294: return(MDOC_Bf);
295: case (MDOC_Ek):
296: return(MDOC_Bk);
297: case (MDOC_El):
298: return(MDOC_Bl);
299: case (MDOC_Fc):
300: return(MDOC_Fo);
301: case (MDOC_Oc):
302: return(MDOC_Oo);
303: case (MDOC_Pc):
304: return(MDOC_Po);
305: case (MDOC_Qc):
306: return(MDOC_Qo);
307: case (MDOC_Re):
308: return(MDOC_Rs);
309: case (MDOC_Sc):
310: return(MDOC_So);
311: case (MDOC_Xc):
312: return(MDOC_Xo);
313: default:
1.48 ! schwarze 314: return(tok);
1.1 kristaps 315: }
316: /* NOTREACHED */
317: }
318:
319:
1.48 ! schwarze 320: /*
! 321: * Rewinding to tok, how do we have to handle *p?
! 322: * REWIND_NONE: *p would delimit tok, but no tok scope is open
! 323: * inside *p, so there is no need to rewind anything at all.
! 324: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
! 325: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
! 326: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
! 327: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 328: */
1.35 schwarze 329: static enum rew
1.34 schwarze 330: rew_dohalt(enum mdoct tok, enum mdoc_type type,
331: const struct mdoc_node *p)
1.1 kristaps 332: {
333:
334: if (MDOC_ROOT == p->type)
1.48 ! schwarze 335: return(MDOC_BLOCK == type &&
! 336: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
! 337: REWIND_ERROR : REWIND_NONE);
! 338: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
! 339: return(REWIND_MORE);
! 340:
! 341: tok = rew_alt(tok);
! 342: if (tok == p->tok)
! 343: return(p->end ? REWIND_NONE :
! 344: type == p->type ? REWIND_THIS : REWIND_MORE);
! 345:
! 346: if (MDOC_ELEM == p->type)
! 347: return(REWIND_MORE);
1.1 kristaps 348:
349: switch (tok) {
1.48 ! schwarze 350: case (MDOC_Bl):
! 351: if (MDOC_It == p->tok)
! 352: return(REWIND_MORE);
1.1 kristaps 353: break;
354: case (MDOC_It):
355: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.48 ! schwarze 356: return(REWIND_NONE);
1.1 kristaps 357: break;
1.48 ! schwarze 358: /*
! 359: * XXX Badly nested block handling still fails badly
! 360: * when one block is breaking two blocks of the same type.
! 361: * This is an incomplete and extremely ugly workaround,
! 362: * required to let the OpenBSD tree build.
! 363: */
! 364: case (MDOC_Oo):
! 365: if (MDOC_Op == p->tok)
! 366: return(REWIND_MORE);
1.1 kristaps 367: break;
1.12 schwarze 368: case (MDOC_Nd):
369: /* FALLTHROUGH */
1.1 kristaps 370: case (MDOC_Ss):
371: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.48 ! schwarze 372: return(REWIND_NONE);
1.1 kristaps 373: /* FALLTHROUGH */
374: case (MDOC_Sh):
1.48 ! schwarze 375: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
! 376: MDOC_Sh == p->tok)
! 377: return(REWIND_MORE);
1.1 kristaps 378: break;
379: default:
380: break;
381: }
382:
1.48 ! schwarze 383: return(p->end || (MDOC_BLOCK == p->type &&
! 384: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) ?
! 385: REWIND_MORE : REWIND_LATER);
1.1 kristaps 386: }
387:
388:
389: static int
1.34 schwarze 390: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 391: {
392: struct mdoc_node *n;
393:
394: n = mdoc->last;
395: if (MDOC_ELEM != n->type)
396: n = n->parent;
397: assert(MDOC_ELEM == n->type);
398: assert(tok == n->tok);
399:
400: return(rew_last(mdoc, n));
401: }
402:
403:
1.47 schwarze 404: /*
405: * We are trying to close a block identified by tok,
406: * but the child block *broken is still open.
407: * Thus, postpone closing the tok block
408: * until the rew_sub call closing *broken.
409: */
410: static int
411: make_pending(struct mdoc_node *broken, enum mdoct tok,
412: struct mdoc *m, int line, int ppos)
413: {
414: struct mdoc_node *breaker;
415:
416: /*
417: * Iterate backwards, searching for the block matching tok,
418: * that is, the block breaking the *broken block.
419: */
420: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
421:
422: /*
423: * If the *broken block had already been broken before
424: * and we encounter its breaker, make the tok block
425: * pending on the inner breaker.
426: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
427: * becomes "[A broken=[B [C->B B] tok=A] C]"
428: * and finally "[A [B->A [C->B B] A] C]".
429: */
430: if (breaker == broken->pending) {
431: broken = breaker;
432: continue;
433: }
434:
1.48 ! schwarze 435: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.47 schwarze 436: continue;
437: if (MDOC_BODY == broken->type)
438: broken = broken->parent;
439:
440: /*
441: * Found the breaker.
442: * If another, outer breaker is already pending on
443: * the *broken block, we must not clobber the link
444: * to the outer breaker, but make it pending on the
445: * new, now inner breaker.
446: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
447: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
448: * and finally "[A [B->A [C->B A] B] C]".
449: */
450: if (broken->pending) {
451: struct mdoc_node *taker;
452:
453: /*
454: * If the breaker had also been broken before,
455: * it cannot take on the outer breaker itself,
456: * but must hand it on to its own breakers.
457: * Graphically, this is the following situation:
458: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
459: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
460: */
461: taker = breaker;
462: while (taker->pending)
463: taker = taker->pending;
464: taker->pending = broken->pending;
465: }
466: broken->pending = breaker;
467: mdoc_vmsg(m, MANDOCERR_SCOPE, line, ppos, "%s breaks %s",
468: mdoc_macronames[tok], mdoc_macronames[broken->tok]);
469: return(1);
470: }
471:
472: /*
473: * Found no matching block for tok.
474: * Are you trying to close a block that is not open?
1.48 ! schwarze 475: * XXX Make this non-fatal.
1.47 schwarze 476: */
477: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE);
478: return(0);
479: }
480:
1.48 ! schwarze 481:
1.1 kristaps 482: static int
1.22 schwarze 483: rew_sub(enum mdoc_type t, struct mdoc *m,
1.34 schwarze 484: enum mdoct tok, int line, int ppos)
1.1 kristaps 485: {
486: struct mdoc_node *n;
487:
1.48 ! schwarze 488: n = m->last;
! 489: while (n) {
! 490: switch (rew_dohalt(tok, t, n)) {
! 491: case (REWIND_NONE):
! 492: return(1);
! 493: case (REWIND_THIS):
! 494: break;
! 495: case (REWIND_MORE):
! 496: n = n->parent;
! 497: continue;
! 498: case (REWIND_LATER):
! 499: return(make_pending(n, tok, m, line, ppos));
! 500: case (REWIND_ERROR):
! 501: /* XXX Make this non-fatal. */
1.44 schwarze 502: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE);
1.48 ! schwarze 503: return 0;
1.22 schwarze 504: }
1.48 ! schwarze 505: break;
1.1 kristaps 506: }
507:
508: assert(n);
1.29 schwarze 509: if ( ! rew_last(m, n))
510: return(0);
511:
512: /*
1.47 schwarze 513: * The current block extends an enclosing block.
514: * Now that the current block ends, close the enclosing block, too.
1.29 schwarze 515: */
1.47 schwarze 516: while (NULL != (n = n->pending)) {
1.29 schwarze 517: if ( ! rew_last(m, n))
518: return(0);
1.47 schwarze 519: if (MDOC_HEAD == n->type &&
520: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.29 schwarze 521: return(0);
522: }
523: return(1);
1.1 kristaps 524: }
525:
526:
527: static int
1.42 schwarze 528: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 529: {
1.42 schwarze 530: int la;
1.36 schwarze 531: enum margserr ac;
1.1 kristaps 532: char *p;
533:
1.42 schwarze 534: if ('\0' == buf[*pos])
1.1 kristaps 535: return(1);
536:
537: for (;;) {
1.42 schwarze 538: la = *pos;
539: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 540:
1.36 schwarze 541: if (ARGS_ERROR == ac)
1.1 kristaps 542: return(0);
1.36 schwarze 543: else if (ARGS_EOLN == ac)
1.1 kristaps 544: break;
1.42 schwarze 545:
1.40 schwarze 546: assert(DELIM_NONE != mdoc_isdelim(p));
1.42 schwarze 547: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 548: return(0);
1.43 schwarze 549:
1.42 schwarze 550: /*
551: * If we encounter end-of-sentence symbols, then trigger
552: * the double-space.
553: *
554: * XXX: it's easy to allow this to propogate outward to
555: * the last symbol, such that `. )' will cause the
556: * correct double-spacing. However, (1) groff isn't
557: * smart enough to do this and (2) it would require
558: * knowing which symbols break this behaviour, for
559: * example, `. ;' shouldn't propogate the double-space.
560: */
561: if (mandoc_eos(p, strlen(p)))
562: m->last->flags |= MDOC_EOS;
1.1 kristaps 563: }
564:
565: return(1);
566: }
567:
568:
569: /*
570: * Close out block partial/full explicit.
571: */
572: static int
573: blk_exp_close(MACRO_PROT_ARGS)
574: {
1.47 schwarze 575: struct mdoc_node *body; /* Our own body. */
576: struct mdoc_node *later; /* A sub-block starting later. */
577: struct mdoc_node *n; /* For searching backwards. */
578:
1.37 schwarze 579: int j, lastarg, maxargs, flushed, nl;
1.36 schwarze 580: enum margserr ac;
1.47 schwarze 581: enum mdoct atok, ntok;
1.1 kristaps 582: char *p;
583:
1.37 schwarze 584: nl = MDOC_NEWLINE & m->flags;
585:
1.1 kristaps 586: switch (tok) {
587: case (MDOC_Ec):
588: maxargs = 1;
589: break;
590: default:
591: maxargs = 0;
592: break;
593: }
594:
1.47 schwarze 595: /*
596: * Search backwards for beginnings of blocks,
597: * both of our own and of pending sub-blocks.
598: */
599: atok = rew_alt(tok);
600: body = later = NULL;
601: for (n = m->last; n; n = n->parent) {
602: if (MDOC_VALID & n->flags)
603: continue;
604:
605: /* Remember the start of our own body. */
606: if (MDOC_BODY == n->type && atok == n->tok) {
607: if ( ! n->end)
608: body = n;
609: continue;
610: }
611:
612: if (MDOC_BLOCK != n->type)
613: continue;
614: if (atok == n->tok) {
615: assert(body);
616:
617: /*
618: * Found the start of our own block.
619: * When there is no pending sub block,
620: * just proceed to closing out.
621: */
622: if (NULL == later)
623: break;
624:
625: /*
626: * When there is a pending sub block,
627: * postpone closing out the current block
628: * until the rew_sub() closing out the sub-block.
629: */
630: if ( ! make_pending(later, tok, m, line, ppos))
631: return(0);
632:
633: /*
634: * Mark the place where the formatting - but not
635: * the scope - of the current block ends.
636: */
637: if ( ! mdoc_endbody_alloc(m, line, ppos,
638: atok, body, ENDBODY_SPACE))
639: return(0);
640: break;
641: }
642:
643: /*
644: * When finding an open sub block, remember the last
645: * open explicit block, or, in case there are only
646: * implicit ones, the first open implicit block.
647: */
648: if (later &&
649: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
650: continue;
651: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags) {
652: assert( ! (MDOC_ACTED & n->flags));
653: later = n;
654: }
655: }
656:
1.1 kristaps 657: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.44 schwarze 658: /* FIXME: do this in validate */
1.14 schwarze 659: if (buf[*pos])
1.44 schwarze 660: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 661: return(0);
1.14 schwarze 662:
1.22 schwarze 663: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.14 schwarze 664: return(0);
1.22 schwarze 665: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 666: }
667:
1.22 schwarze 668: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 669: return(0);
670:
1.47 schwarze 671: if (NULL == later && maxargs > 0)
1.22 schwarze 672: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 673: return(0);
674:
1.20 schwarze 675: for (flushed = j = 0; ; j++) {
1.1 kristaps 676: lastarg = *pos;
677:
678: if (j == maxargs && ! flushed) {
1.22 schwarze 679: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 680: return(0);
681: flushed = 1;
682: }
683:
1.36 schwarze 684: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 685:
1.36 schwarze 686: if (ARGS_ERROR == ac)
1.1 kristaps 687: return(0);
1.36 schwarze 688: if (ARGS_PUNCT == ac)
1.1 kristaps 689: break;
1.36 schwarze 690: if (ARGS_EOLN == ac)
1.1 kristaps 691: break;
692:
1.36 schwarze 693: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
694:
695: if (MDOC_MAX == ntok) {
696: if ( ! mdoc_word_alloc(m, line, lastarg, p))
1.1 kristaps 697: return(0);
1.36 schwarze 698: continue;
699: }
1.1 kristaps 700:
1.36 schwarze 701: if ( ! flushed) {
702: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
703: return(0);
704: flushed = 1;
705: }
706: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 707: return(0);
1.36 schwarze 708: break;
1.1 kristaps 709: }
710:
1.22 schwarze 711: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 712: return(0);
713:
1.37 schwarze 714: if ( ! nl)
1.1 kristaps 715: return(1);
1.22 schwarze 716: return(append_delims(m, line, pos, buf));
1.1 kristaps 717: }
718:
719:
720: static int
721: in_line(MACRO_PROT_ARGS)
722: {
1.45 schwarze 723: int la, scope, cnt, nc, nl;
1.36 schwarze 724: enum margverr av;
725: enum mdoct ntok;
726: enum margserr ac;
1.40 schwarze 727: enum mdelim d;
1.36 schwarze 728: struct mdoc_arg *arg;
729: char *p;
1.1 kristaps 730:
1.37 schwarze 731: nl = MDOC_NEWLINE & m->flags;
732:
1.1 kristaps 733: /*
734: * Whether we allow ignored elements (those without content,
735: * usually because of reserved words) to squeak by.
736: */
1.32 schwarze 737:
1.1 kristaps 738: switch (tok) {
1.19 schwarze 739: case (MDOC_An):
740: /* FALLTHROUGH */
741: case (MDOC_Ar):
1.1 kristaps 742: /* FALLTHROUGH */
743: case (MDOC_Fl):
744: /* FALLTHROUGH */
1.3 schwarze 745: case (MDOC_Lk):
1.18 schwarze 746: /* FALLTHROUGH */
1.19 schwarze 747: case (MDOC_Nm):
748: /* FALLTHROUGH */
1.18 schwarze 749: case (MDOC_Pa):
1.1 kristaps 750: nc = 1;
751: break;
752: default:
753: nc = 0;
754: break;
755: }
756:
1.20 schwarze 757: for (arg = NULL;; ) {
1.1 kristaps 758: la = *pos;
1.36 schwarze 759: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 760:
1.36 schwarze 761: if (ARGV_WORD == av) {
1.1 kristaps 762: *pos = la;
763: break;
764: }
1.36 schwarze 765: if (ARGV_EOLN == av)
1.1 kristaps 766: break;
1.36 schwarze 767: if (ARGV_ARG == av)
1.1 kristaps 768: continue;
769:
770: mdoc_argv_free(arg);
771: return(0);
772: }
773:
1.45 schwarze 774: for (cnt = scope = 0;; ) {
1.1 kristaps 775: la = *pos;
1.36 schwarze 776: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 777:
1.36 schwarze 778: if (ARGS_ERROR == ac)
1.1 kristaps 779: return(0);
1.36 schwarze 780: if (ARGS_EOLN == ac)
1.1 kristaps 781: break;
1.36 schwarze 782: if (ARGS_PUNCT == ac)
1.1 kristaps 783: break;
784:
1.36 schwarze 785: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 786:
787: /*
788: * In this case, we've located a submacro and must
789: * execute it. Close out scope, if open. If no
790: * elements have been generated, either create one (nc)
791: * or raise a warning.
792: */
793:
1.36 schwarze 794: if (MDOC_MAX != ntok) {
1.45 schwarze 795: if (scope && ! rew_elem(m, tok))
1.1 kristaps 796: return(0);
797: if (nc && 0 == cnt) {
1.22 schwarze 798: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 799: return(0);
1.22 schwarze 800: if ( ! rew_last(m, m->last))
1.3 schwarze 801: return(0);
1.1 kristaps 802: } else if ( ! nc && 0 == cnt) {
803: mdoc_argv_free(arg);
1.44 schwarze 804: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.1 kristaps 805: return(0);
806: }
1.36 schwarze 807: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 808: return(0);
1.37 schwarze 809: if ( ! nl)
1.1 kristaps 810: return(1);
1.22 schwarze 811: return(append_delims(m, line, pos, buf));
1.21 schwarze 812: }
1.1 kristaps 813:
814: /*
815: * Non-quote-enclosed punctuation. Set up our scope, if
816: * a word; rewind the scope, if a delimiter; then append
817: * the word.
818: */
819:
1.40 schwarze 820: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 821:
1.45 schwarze 822: if (DELIM_NONE != d) {
823: /*
824: * If we encounter closing punctuation, no word
825: * has been omitted, no scope is open, and we're
826: * allowed to have an empty element, then start
827: * a new scope. `Ar', `Fl', and `Li', only do
828: * this once per invocation. There may be more
829: * of these (all of them?).
830: */
831: if (0 == cnt && (nc || MDOC_Li == tok) &&
832: DELIM_CLOSE == d && ! scope) {
833: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
834: return(0);
835: if (MDOC_Ar == tok || MDOC_Li == tok ||
836: MDOC_Fl == tok)
837: cnt++;
838: scope = 1;
839: }
840: /*
841: * Close out our scope, if one is open, before
842: * any punctuation.
843: */
844: if (scope && ! rew_elem(m, tok))
1.1 kristaps 845: return(0);
1.45 schwarze 846: scope = 0;
847: } else if ( ! scope) {
1.22 schwarze 848: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 849: return(0);
1.45 schwarze 850: scope = 1;
1.1 kristaps 851: }
852:
1.40 schwarze 853: if (DELIM_NONE == d)
1.1 kristaps 854: cnt++;
1.22 schwarze 855: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 856: return(0);
1.27 schwarze 857:
858: /*
859: * `Fl' macros have their scope re-opened with each new
860: * word so that the `-' can be added to each one without
861: * having to parse out spaces.
862: */
1.45 schwarze 863: if (scope && MDOC_Fl == tok) {
1.27 schwarze 864: if ( ! rew_elem(m, tok))
865: return(0);
1.45 schwarze 866: scope = 0;
1.27 schwarze 867: }
1.1 kristaps 868: }
869:
1.45 schwarze 870: if (scope && ! rew_elem(m, tok))
1.1 kristaps 871: return(0);
872:
873: /*
874: * If no elements have been collected and we're allowed to have
875: * empties (nc), open a scope and close it out. Otherwise,
876: * raise a warning.
877: */
1.32 schwarze 878:
1.1 kristaps 879: if (nc && 0 == cnt) {
1.22 schwarze 880: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 881: return(0);
1.22 schwarze 882: if ( ! rew_last(m, m->last))
1.3 schwarze 883: return(0);
884: } else if ( ! nc && 0 == cnt) {
1.1 kristaps 885: mdoc_argv_free(arg);
1.44 schwarze 886: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.1 kristaps 887: return(0);
888: }
889:
1.37 schwarze 890: if ( ! nl)
1.1 kristaps 891: return(1);
1.22 schwarze 892: return(append_delims(m, line, pos, buf));
1.1 kristaps 893: }
894:
895:
896: static int
897: blk_full(MACRO_PROT_ARGS)
898: {
1.43 schwarze 899: int la, nl;
1.1 kristaps 900: struct mdoc_arg *arg;
1.32 schwarze 901: struct mdoc_node *head; /* save of head macro */
1.34 schwarze 902: struct mdoc_node *body; /* save of body macro */
1.32 schwarze 903: struct mdoc_node *n;
1.46 schwarze 904: enum mdoc_type mtt;
1.36 schwarze 905: enum mdoct ntok;
1.37 schwarze 906: enum margserr ac, lac;
1.36 schwarze 907: enum margverr av;
1.1 kristaps 908: char *p;
909:
1.43 schwarze 910: nl = MDOC_NEWLINE & m->flags;
911:
1.32 schwarze 912: /* Close out prior implicit scope. */
1.12 schwarze 913:
1.1 kristaps 914: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.22 schwarze 915: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 916: return(0);
1.22 schwarze 917: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 918: return(0);
919: }
920:
1.32 schwarze 921: /*
922: * This routine accomodates implicitly- and explicitly-scoped
923: * macro openings. Implicit ones first close out prior scope
924: * (seen above). Delay opening the head until necessary to
925: * allow leading punctuation to print. Special consideration
926: * for `It -column', which has phrase-part syntax instead of
927: * regular child nodes.
928: */
929:
1.1 kristaps 930: for (arg = NULL;; ) {
1.32 schwarze 931: la = *pos;
1.36 schwarze 932: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 933:
1.36 schwarze 934: if (ARGV_WORD == av) {
1.32 schwarze 935: *pos = la;
1.1 kristaps 936: break;
937: }
938:
1.36 schwarze 939: if (ARGV_EOLN == av)
1.1 kristaps 940: break;
1.36 schwarze 941: if (ARGV_ARG == av)
1.1 kristaps 942: continue;
943:
944: mdoc_argv_free(arg);
945: return(0);
946: }
947:
1.22 schwarze 948: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 949: return(0);
950:
1.34 schwarze 951: head = body = NULL;
1.1 kristaps 952:
1.32 schwarze 953: /*
954: * The `Nd' macro has all arguments in its body: it's a hybrid
955: * of block partial-explicit and full-implicit. Stupid.
956: */
1.12 schwarze 957:
1.32 schwarze 958: if (MDOC_Nd == tok) {
959: if ( ! mdoc_head_alloc(m, line, ppos, tok))
960: return(0);
961: head = m->last;
1.22 schwarze 962: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.12 schwarze 963: return(0);
1.22 schwarze 964: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.12 schwarze 965: return(0);
1.34 schwarze 966: body = m->last;
1.12 schwarze 967: }
968:
1.37 schwarze 969: ac = ARGS_ERROR;
970:
1.41 schwarze 971: for ( ; ; ) {
1.32 schwarze 972: la = *pos;
1.46 schwarze 973: /* Initialise last-phrase-type with ARGS_PEND. */
974: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.36 schwarze 975: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 976:
1.36 schwarze 977: if (ARGS_ERROR == ac)
1.1 kristaps 978: return(0);
1.46 schwarze 979:
980: if (ARGS_EOLN == ac) {
981: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
982: break;
983: /*
984: * This is necessary: if the last token on a
985: * line is a `Ta' or tab, then we'll get
986: * ARGS_EOLN, so we must be smart enough to
987: * reopen our scope if the last parse was a
988: * phrase or partial phrase.
989: */
990: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
991: return(0);
992: if ( ! mdoc_body_alloc(m, line, ppos, tok))
993: return(0);
994: body = m->last;
1.1 kristaps 995: break;
1.41 schwarze 996: }
997:
1.46 schwarze 998: /*
999: * Emit leading punctuation (i.e., punctuation before
1000: * the MDOC_HEAD) for non-phrase types.
1001: */
1.32 schwarze 1002:
1.37 schwarze 1003: if (NULL == head &&
1.46 schwarze 1004: ARGS_PEND != ac &&
1.37 schwarze 1005: ARGS_PHRASE != ac &&
1.36 schwarze 1006: ARGS_PPHRASE != ac &&
1007: ARGS_QWORD != ac &&
1.40 schwarze 1008: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1009: if ( ! mdoc_word_alloc(m, line, la, p))
1010: return(0);
1011: continue;
1012: }
1013:
1.46 schwarze 1014: /* Open a head if one hasn't been opened. */
1.32 schwarze 1015:
1.46 schwarze 1016: if (NULL == head) {
1.32 schwarze 1017: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1018: return(0);
1.29 schwarze 1019: head = m->last;
1.32 schwarze 1020: }
1021:
1.46 schwarze 1022: if (ARGS_PHRASE == ac ||
1023: ARGS_PEND == ac ||
1024: ARGS_PPHRASE == ac) {
1025: /*
1026: * If we haven't opened a body yet, rewind the
1027: * head; if we have, rewind that instead.
1028: */
1029:
1030: mtt = body ? MDOC_BODY : MDOC_HEAD;
1031: if ( ! rew_sub(mtt, m, tok, line, ppos))
1032: return(0);
1033:
1034: /* Then allocate our body context. */
1035:
1036: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1037: return(0);
1038: body = m->last;
1039:
1040: /*
1041: * Process phrases: set whether we're in a
1042: * partial-phrase (this effects line handling)
1043: * then call down into the phrase parser.
1044: */
1045:
1.41 schwarze 1046: if (ARGS_PPHRASE == ac)
1047: m->flags |= MDOC_PPHRASE;
1.46 schwarze 1048: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1049: m->flags |= MDOC_PPHRASE;
1050:
1051: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1052: return(0);
1.46 schwarze 1053:
1.41 schwarze 1054: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1055: continue;
1056: }
1057:
1.36 schwarze 1058: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1059:
1060: if (MDOC_MAX == ntok) {
1061: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1062: return(0);
1.36 schwarze 1063: continue;
1.32 schwarze 1064: }
1.36 schwarze 1065:
1066: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1067: return(0);
1.36 schwarze 1068: break;
1.32 schwarze 1069: }
1.1 kristaps 1070:
1.32 schwarze 1071: if (NULL == head) {
1072: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1073: return(0);
1.32 schwarze 1074: head = m->last;
1.1 kristaps 1075: }
1076:
1.43 schwarze 1077: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1078: return(0);
1.12 schwarze 1079:
1.34 schwarze 1080: /* If we've already opened our body, exit now. */
1.32 schwarze 1081:
1.34 schwarze 1082: if (NULL != body)
1.46 schwarze 1083: goto out;
1.29 schwarze 1084:
1085: /*
1.34 schwarze 1086: * If there is an open (i.e., unvalidated) sub-block requiring
1087: * explicit close-out, postpone switching the current block from
1088: * head to body until the rew_sub() call closing out that
1089: * sub-block.
1.29 schwarze 1090: */
1091: for (n = m->last; n && n != head; n = n->parent) {
1.34 schwarze 1092: if (MDOC_BLOCK == n->type &&
1093: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1094: ! (MDOC_VALID & n->flags)) {
1095: assert( ! (MDOC_ACTED & n->flags));
1.29 schwarze 1096: n->pending = head;
1097: return(1);
1098: }
1099: }
1.32 schwarze 1100: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1101:
1.22 schwarze 1102: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1103: return(0);
1.22 schwarze 1104: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1105: return(0);
1106:
1.46 schwarze 1107: out:
1108: if ( ! (MDOC_FREECOL & m->flags))
1109: return(1);
1110:
1111: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1112: return(0);
1113: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1114: return(0);
1115:
1116: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1117: return(1);
1118: }
1119:
1120:
1121: static int
1122: blk_part_imp(MACRO_PROT_ARGS)
1123: {
1.43 schwarze 1124: int la, nl;
1.36 schwarze 1125: enum mdoct ntok;
1126: enum margserr ac;
1.1 kristaps 1127: char *p;
1.32 schwarze 1128: struct mdoc_node *blk; /* saved block context */
1129: struct mdoc_node *body; /* saved body context */
1130: struct mdoc_node *n;
1.1 kristaps 1131:
1.43 schwarze 1132: nl = MDOC_NEWLINE & m->flags;
1133:
1.32 schwarze 1134: /*
1135: * A macro that spans to the end of the line. This is generally
1136: * (but not necessarily) called as the first macro. The block
1137: * has a head as the immediate child, which is always empty,
1138: * followed by zero or more opening punctuation nodes, then the
1139: * body (which may be empty, depending on the macro), then zero
1140: * or more closing punctuation nodes.
1141: */
1.22 schwarze 1142:
1143: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1144: return(0);
1.32 schwarze 1145:
1.22 schwarze 1146: blk = m->last;
1.32 schwarze 1147:
1.22 schwarze 1148: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1149: return(0);
1.22 schwarze 1150: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1151: return(0);
1152:
1.32 schwarze 1153: /*
1154: * Open the body scope "on-demand", that is, after we've
1155: * processed all our the leading delimiters (open parenthesis,
1156: * etc.).
1157: */
1.1 kristaps 1158:
1.32 schwarze 1159: for (body = NULL; ; ) {
1.22 schwarze 1160: la = *pos;
1.36 schwarze 1161: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.32 schwarze 1162:
1.36 schwarze 1163: if (ARGS_ERROR == ac)
1.1 kristaps 1164: return(0);
1.36 schwarze 1165: if (ARGS_EOLN == ac)
1.32 schwarze 1166: break;
1.36 schwarze 1167: if (ARGS_PUNCT == ac)
1.1 kristaps 1168: break;
1169:
1.36 schwarze 1170: if (NULL == body && ARGS_QWORD != ac &&
1.40 schwarze 1171: DELIM_OPEN == mdoc_isdelim(p)) {
1.22 schwarze 1172: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1173: return(0);
1174: continue;
1175: }
1176:
1.32 schwarze 1177: if (NULL == body) {
1178: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1179: return(0);
1180: body = m->last;
1181: }
1182:
1.36 schwarze 1183: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1184:
1185: if (MDOC_MAX == ntok) {
1186: if ( ! mdoc_word_alloc(m, line, la, p))
1.32 schwarze 1187: return(0);
1.36 schwarze 1188: continue;
1189: }
1.32 schwarze 1190:
1.36 schwarze 1191: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1192: return(0);
1.36 schwarze 1193: break;
1.32 schwarze 1194: }
1195:
1196: /* Clean-ups to leave in a consistent state. */
1197:
1198: if (NULL == body) {
1199: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1200: return(0);
1.32 schwarze 1201: body = m->last;
1.39 schwarze 1202: }
1203:
1204: for (n = body->child; n && n->next; n = n->next)
1205: /* Do nothing. */ ;
1206:
1207: /*
1208: * End of sentence spacing: if the last node is a text node and
1209: * has a trailing period, then mark it as being end-of-sentence.
1210: */
1211:
1212: if (n && MDOC_TEXT == n->type && n->string)
1213: if (mandoc_eos(n->string, strlen(n->string)))
1214: n->flags |= MDOC_EOS;
1215:
1216: /* Up-propogate the end-of-space flag. */
1217:
1218: if (n && (MDOC_EOS & n->flags)) {
1219: body->flags |= MDOC_EOS;
1220: body->parent->flags |= MDOC_EOS;
1.1 kristaps 1221: }
1222:
1.47 schwarze 1223: /*
1224: * If there is an open sub-block requiring explicit close-out,
1225: * postpone closing out the current block
1226: * until the rew_sub() call closing out the sub-block.
1227: */
1228: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1229: if (MDOC_BLOCK == n->type &&
1230: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1231: ! (MDOC_VALID & n->flags)) {
1232: assert( ! (MDOC_ACTED & n->flags));
1233: if ( ! make_pending(n, tok, m, line, ppos))
1234: return(0);
1235: if ( ! mdoc_endbody_alloc(m, line, ppos,
1236: tok, body, ENDBODY_NOSPACE))
1237: return(0);
1238: return(1);
1239: }
1240: }
1241:
1.22 schwarze 1242: /*
1243: * If we can't rewind to our body, then our scope has already
1244: * been closed by another macro (like `Oc' closing `Op'). This
1245: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.34 schwarze 1246: * crufty use of `Op' breakage.
1.1 kristaps 1247: */
1.47 schwarze 1248: if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPE, line, ppos,
1249: "%s broken", mdoc_macronames[tok]))
1.22 schwarze 1250: return(0);
1.32 schwarze 1251:
1.47 schwarze 1252: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 schwarze 1253: return(0);
1.1 kristaps 1254:
1.22 schwarze 1255: /* Standard appending of delimiters. */
1.1 kristaps 1256:
1.43 schwarze 1257: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1258: return(0);
1259:
1.22 schwarze 1260: /* Rewind scope, if applicable. */
1.1 kristaps 1261:
1.47 schwarze 1262: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1263: return(0);
1264:
1265: return(1);
1266: }
1267:
1268:
1269: static int
1270: blk_part_exp(MACRO_PROT_ARGS)
1271: {
1.37 schwarze 1272: int la, nl;
1.36 schwarze 1273: enum margserr ac;
1.32 schwarze 1274: struct mdoc_node *head; /* keep track of head */
1275: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1276: char *p;
1.36 schwarze 1277: enum mdoct ntok;
1.1 kristaps 1278:
1.37 schwarze 1279: nl = MDOC_NEWLINE & m->flags;
1280:
1.32 schwarze 1281: /*
1282: * The opening of an explicit macro having zero or more leading
1283: * punctuation nodes; a head with optional single element (the
1284: * case of `Eo'); and a body that may be empty.
1285: */
1.22 schwarze 1286:
1287: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1288: return(0);
1.22 schwarze 1289:
1.32 schwarze 1290: for (head = body = NULL; ; ) {
1.22 schwarze 1291: la = *pos;
1.36 schwarze 1292: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1293:
1.36 schwarze 1294: if (ARGS_ERROR == ac)
1.1 kristaps 1295: return(0);
1.36 schwarze 1296: if (ARGS_PUNCT == ac)
1.1 kristaps 1297: break;
1.36 schwarze 1298: if (ARGS_EOLN == ac)
1.1 kristaps 1299: break;
1300:
1.32 schwarze 1301: /* Flush out leading punctuation. */
1302:
1.36 schwarze 1303: if (NULL == head && ARGS_QWORD != ac &&
1.40 schwarze 1304: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1305: assert(NULL == body);
1306: if ( ! mdoc_word_alloc(m, line, la, p))
1307: return(0);
1308: continue;
1309: }
1310:
1311: if (NULL == head) {
1312: assert(NULL == body);
1313: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1314: return(0);
1.32 schwarze 1315: head = m->last;
1.1 kristaps 1316: }
1317:
1.32 schwarze 1318: /*
1319: * `Eo' gobbles any data into the head, but most other
1320: * macros just immediately close out and begin the body.
1321: */
1322:
1323: if (NULL == body) {
1324: assert(head);
1325: /* No check whether it's a macro! */
1326: if (MDOC_Eo == tok)
1327: if ( ! mdoc_word_alloc(m, line, la, p))
1328: return(0);
1329:
1.22 schwarze 1330: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1331: return(0);
1.22 schwarze 1332: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1333: return(0);
1.32 schwarze 1334: body = m->last;
1335:
1336: if (MDOC_Eo == tok)
1337: continue;
1338: }
1339:
1340: assert(NULL != head && NULL != body);
1341:
1.36 schwarze 1342: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1343:
1344: if (MDOC_MAX == ntok) {
1345: if ( ! mdoc_word_alloc(m, line, la, p))
1.32 schwarze 1346: return(0);
1.36 schwarze 1347: continue;
1.1 kristaps 1348: }
1.32 schwarze 1349:
1.36 schwarze 1350: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1351: return(0);
1.36 schwarze 1352: break;
1.1 kristaps 1353: }
1354:
1.32 schwarze 1355: /* Clean-up to leave in a consistent state. */
1356:
1357: if (NULL == head) {
1358: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1359: return(0);
1360: head = m->last;
1361: }
1.22 schwarze 1362:
1.32 schwarze 1363: if (NULL == body) {
1.22 schwarze 1364: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1365: return(0);
1.22 schwarze 1366: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1367: return(0);
1.32 schwarze 1368: body = m->last;
1.1 kristaps 1369: }
1370:
1.22 schwarze 1371: /* Standard appending of delimiters. */
1372:
1.37 schwarze 1373: if ( ! nl)
1.1 kristaps 1374: return(1);
1.22 schwarze 1375: return(append_delims(m, line, pos, buf));
1.1 kristaps 1376: }
1377:
1378:
1.37 schwarze 1379: /* ARGSUSED */
1.1 kristaps 1380: static int
1381: in_line_argn(MACRO_PROT_ARGS)
1382: {
1.37 schwarze 1383: int la, flushed, j, maxargs, nl;
1.36 schwarze 1384: enum margserr ac;
1385: enum margverr av;
1386: struct mdoc_arg *arg;
1387: char *p;
1388: enum mdoct ntok;
1.1 kristaps 1389:
1.37 schwarze 1390: nl = MDOC_NEWLINE & m->flags;
1391:
1.32 schwarze 1392: /*
1393: * A line macro that has a fixed number of arguments (maxargs).
1394: * Only open the scope once the first non-leading-punctuation is
1395: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1396: * keep it open until the maximum number of arguments are
1397: * exhausted.
1398: */
1.1 kristaps 1399:
1400: switch (tok) {
1401: case (MDOC_Ap):
1402: /* FALLTHROUGH */
1403: case (MDOC_No):
1404: /* FALLTHROUGH */
1405: case (MDOC_Ns):
1406: /* FALLTHROUGH */
1407: case (MDOC_Ux):
1408: maxargs = 0;
1409: break;
1.28 schwarze 1410: case (MDOC_Xr):
1411: maxargs = 2;
1412: break;
1.1 kristaps 1413: default:
1414: maxargs = 1;
1415: break;
1416: }
1417:
1.32 schwarze 1418: for (arg = NULL; ; ) {
1.22 schwarze 1419: la = *pos;
1.36 schwarze 1420: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1421:
1.36 schwarze 1422: if (ARGV_WORD == av) {
1.22 schwarze 1423: *pos = la;
1.1 kristaps 1424: break;
1425: }
1426:
1.36 schwarze 1427: if (ARGV_EOLN == av)
1.1 kristaps 1428: break;
1.36 schwarze 1429: if (ARGV_ARG == av)
1.1 kristaps 1430: continue;
1431:
1432: mdoc_argv_free(arg);
1433: return(0);
1434: }
1435:
1.32 schwarze 1436: for (flushed = j = 0; ; ) {
1.22 schwarze 1437: la = *pos;
1.36 schwarze 1438: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1439:
1.36 schwarze 1440: if (ARGS_ERROR == ac)
1.1 kristaps 1441: return(0);
1.36 schwarze 1442: if (ARGS_PUNCT == ac)
1.1 kristaps 1443: break;
1.36 schwarze 1444: if (ARGS_EOLN == ac)
1.1 kristaps 1445: break;
1446:
1.32 schwarze 1447: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1448: ARGS_QWORD != ac &&
1.40 schwarze 1449: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1450: if ( ! mdoc_word_alloc(m, line, la, p))
1451: return(0);
1452: continue;
1.40 schwarze 1453: } else if (0 == j)
1.32 schwarze 1454: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1455: return(0);
1456:
1457: if (j == maxargs && ! flushed) {
1458: if ( ! rew_elem(m, tok))
1459: return(0);
1460: flushed = 1;
1461: }
1462:
1.36 schwarze 1463: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1464:
1465: if (MDOC_MAX != ntok) {
1.22 schwarze 1466: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1467: return(0);
1468: flushed = 1;
1.36 schwarze 1469: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1470: return(0);
1.32 schwarze 1471: j++;
1.1 kristaps 1472: break;
1473: }
1474:
1475: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1476: ARGS_QWORD != ac &&
1.40 schwarze 1477: ! flushed &&
1478: DELIM_NONE != mdoc_isdelim(p)) {
1.22 schwarze 1479: if ( ! rew_elem(m, tok))
1.1 kristaps 1480: return(0);
1481: flushed = 1;
1482: }
1.28 schwarze 1483:
1484: /*
1485: * XXX: this is a hack to work around groff's ugliness
1486: * as regards `Xr' and extraneous arguments. It should
1487: * ideally be deprecated behaviour, but because this is
1488: * code is no here, it's unlikely to be removed.
1489: */
1490: if (MDOC_Xr == tok && j == maxargs) {
1.32 schwarze 1491: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.28 schwarze 1492: return(0);
1493: if ( ! rew_elem(m, MDOC_Ns))
1494: return(0);
1495: }
1496:
1.22 schwarze 1497: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1498: return(0);
1.32 schwarze 1499: j++;
1.1 kristaps 1500: }
1501:
1.32 schwarze 1502: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1503: return(0);
1504:
1505: /* Close out in a consistent state. */
1.22 schwarze 1506:
1507: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1508: return(0);
1.37 schwarze 1509: if ( ! nl)
1.1 kristaps 1510: return(1);
1.22 schwarze 1511: return(append_delims(m, line, pos, buf));
1.1 kristaps 1512: }
1513:
1514:
1515: static int
1516: in_line_eoln(MACRO_PROT_ARGS)
1517: {
1.36 schwarze 1518: int la;
1519: enum margserr ac;
1520: enum margverr av;
1521: struct mdoc_arg *arg;
1522: char *p;
1523: enum mdoct ntok;
1.1 kristaps 1524:
1525: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1526:
1.22 schwarze 1527: /* Parse macro arguments. */
1.1 kristaps 1528:
1.22 schwarze 1529: for (arg = NULL; ; ) {
1.1 kristaps 1530: la = *pos;
1.36 schwarze 1531: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1532:
1.36 schwarze 1533: if (ARGV_WORD == av) {
1.1 kristaps 1534: *pos = la;
1535: break;
1536: }
1.36 schwarze 1537: if (ARGV_EOLN == av)
1.1 kristaps 1538: break;
1.36 schwarze 1539: if (ARGV_ARG == av)
1.1 kristaps 1540: continue;
1541:
1542: mdoc_argv_free(arg);
1543: return(0);
1544: }
1545:
1.22 schwarze 1546: /* Open element scope. */
1547:
1548: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1549: return(0);
1550:
1.22 schwarze 1551: /* Parse argument terms. */
1.1 kristaps 1552:
1553: for (;;) {
1554: la = *pos;
1.36 schwarze 1555: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1556:
1.36 schwarze 1557: if (ARGS_ERROR == ac)
1.1 kristaps 1558: return(0);
1.36 schwarze 1559: if (ARGS_EOLN == ac)
1.1 kristaps 1560: break;
1561:
1.36 schwarze 1562: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1563:
1.36 schwarze 1564: if (MDOC_MAX == ntok) {
1565: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1566: return(0);
1.36 schwarze 1567: continue;
1568: }
1.1 kristaps 1569:
1.36 schwarze 1570: if ( ! rew_elem(m, tok))
1.1 kristaps 1571: return(0);
1.36 schwarze 1572: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1573: }
1574:
1.22 schwarze 1575: /* Close out (no delimiters). */
1576:
1577: return(rew_elem(m, tok));
1.28 schwarze 1578: }
1579:
1580:
1581: /* ARGSUSED */
1582: static int
1583: ctx_synopsis(MACRO_PROT_ARGS)
1584: {
1.37 schwarze 1585: int nl;
1586:
1587: nl = MDOC_NEWLINE & m->flags;
1.28 schwarze 1588:
1589: /* If we're not in the SYNOPSIS, go straight to in-line. */
1590: if (SEC_SYNOPSIS != m->lastsec)
1591: return(in_line(m, tok, line, ppos, pos, buf));
1592:
1593: /* If we're a nested call, same place. */
1.37 schwarze 1594: if ( ! nl)
1.28 schwarze 1595: return(in_line(m, tok, line, ppos, pos, buf));
1596:
1597: /*
1598: * XXX: this will open a block scope; however, if later we end
1599: * up formatting the block scope, then child nodes will inherit
1600: * the formatting. Be careful.
1601: */
1602:
1603: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.1 kristaps 1604: }
1605:
1606:
1607: /* ARGSUSED */
1608: static int
1609: obsolete(MACRO_PROT_ARGS)
1610: {
1611:
1.44 schwarze 1612: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1613: }
1614:
1615:
1.17 schwarze 1616: /*
1617: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1618: * They're unusual because they're basically free-form text until a
1619: * macro is encountered.
1620: */
1.1 kristaps 1621: static int
1.46 schwarze 1622: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1623: {
1.36 schwarze 1624: int la, pos;
1.46 schwarze 1625: enum margserr ac;
1.36 schwarze 1626: enum mdoct ntok;
1627: char *p;
1.1 kristaps 1628:
1.17 schwarze 1629: for (pos = ppos; ; ) {
1630: la = pos;
1.1 kristaps 1631:
1.46 schwarze 1632: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1633:
1.46 schwarze 1634: if (ARGS_ERROR == ac)
1.17 schwarze 1635: return(0);
1.46 schwarze 1636: if (ARGS_EOLN == ac)
1.17 schwarze 1637: break;
1.1 kristaps 1638:
1.46 schwarze 1639: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1640:
1.36 schwarze 1641: if (MDOC_MAX == ntok) {
1642: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1643: return(0);
1.36 schwarze 1644: continue;
1645: }
1.1 kristaps 1646:
1.36 schwarze 1647: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1648: return(0);
1.36 schwarze 1649: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1650: }
1651:
1652: return(1);
1653: }
1.17 schwarze 1654:
1655:
1.46 schwarze 1656: /* ARGSUSED */
1657: static int
1658: phrase_ta(MACRO_PROT_ARGS)
1659: {
1660: int la;
1661: enum mdoct ntok;
1662: enum margserr ac;
1663: char *p;
1664:
1665: /*
1666: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1667: * it should simply error out with ARGSLOST.
1668: */
1669:
1670: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1671: return(0);
1672: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1673: return(0);
1674:
1675: for (;;) {
1676: la = *pos;
1677: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1678:
1679: if (ARGS_ERROR == ac)
1680: return(0);
1681: if (ARGS_EOLN == ac)
1682: break;
1683:
1684: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1685:
1686: if (MDOC_MAX == ntok) {
1687: if ( ! mdoc_word_alloc(m, line, la, p))
1688: return(0);
1689: continue;
1690: }
1691:
1692: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1693: return(0);
1694: return(append_delims(m, line, pos, buf));
1695: }
1696:
1697: return(1);
1698: }
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