Annotation of mandoc/mdoc_macro.c, Revision 1.85
1.85 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.48 2010/06/29 18:01:10 schwarze Exp $ */
1.1 kristaps 2: /*
1.80 kristaps 3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 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: *
1.8 kristaps 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: */
1.40 kristaps 17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.1 kristaps 21: #include <assert.h>
22: #include <ctype.h>
23: #include <stdlib.h>
24: #include <stdio.h>
25: #include <string.h>
1.38 kristaps 26: #include <time.h>
1.1 kristaps 27:
1.68 kristaps 28: #include "mandoc.h"
1.1 kristaps 29: #include "libmdoc.h"
1.64 kristaps 30: #include "libmandoc.h"
1.1 kristaps 31:
1.84 schwarze 32: enum rew { /* see rew_dohalt() */
33: REWIND_NONE,
34: REWIND_THIS,
35: REWIND_MORE,
36: REWIND_LATER,
37: REWIND_ERROR,
1.51 kristaps 38: };
1.1 kristaps 39:
1.53 kristaps 40: static int blk_full(MACRO_PROT_ARGS);
41: static int blk_exp_close(MACRO_PROT_ARGS);
42: static int blk_part_exp(MACRO_PROT_ARGS);
43: static int blk_part_imp(MACRO_PROT_ARGS);
44: static int ctx_synopsis(MACRO_PROT_ARGS);
45: static int in_line_eoln(MACRO_PROT_ARGS);
46: static int in_line_argn(MACRO_PROT_ARGS);
47: static int in_line(MACRO_PROT_ARGS);
48: static int obsolete(MACRO_PROT_ARGS);
1.75 kristaps 49: static int phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 50:
51: static int append_delims(struct mdoc *,
52: int, int *, char *);
1.58 kristaps 53: static enum mdoct lookup(enum mdoct, const char *);
1.53 kristaps 54: static enum mdoct lookup_raw(const char *);
1.85 ! schwarze 55: static int make_pending(struct mdoc_node *, enum mdoct,
1.83 schwarze 56: struct mdoc *, int, int);
1.82 kristaps 57: static int phrase(struct mdoc *, int, int, char *);
1.53 kristaps 58: static enum mdoct rew_alt(enum mdoct);
59: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
60: const struct mdoc_node *);
61: static int rew_elem(struct mdoc *, enum mdoct);
62: static int rew_last(struct mdoc *,
63: const struct mdoc_node *);
64: static int rew_sub(enum mdoc_type, struct mdoc *,
65: enum mdoct, int, int);
1.1 kristaps 66:
67: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.13 kristaps 68: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
1.1 kristaps 69: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
70: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
71: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
72: { blk_full, 0 }, /* Sh */
73: { blk_full, 0 }, /* Ss */
1.21 kristaps 74: { in_line_eoln, 0 }, /* Pp */
1.1 kristaps 75: { blk_part_imp, MDOC_PARSED }, /* D1 */
76: { blk_part_imp, MDOC_PARSED }, /* Dl */
77: { blk_full, MDOC_EXPLICIT }, /* Bd */
78: { blk_exp_close, MDOC_EXPLICIT }, /* Ed */
79: { blk_full, MDOC_EXPLICIT }, /* Bl */
80: { blk_exp_close, MDOC_EXPLICIT }, /* El */
81: { blk_full, MDOC_PARSED }, /* It */
82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.10 kristaps 83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.23 kristaps 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
1.1 kristaps 86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
90: { in_line_eoln, 0 }, /* Ex */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
92: { in_line_eoln, 0 }, /* Fd */
93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
1.11 kristaps 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.18 kristaps 97: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.19 kristaps 99: { blk_full, 0 }, /* Nd */
1.1 kristaps 100: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
101: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
102: { obsolete, 0 }, /* Ot */
103: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
104: { in_line_eoln, 0 }, /* Rv */
105: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
106: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.41 kristaps 107: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 108: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.1 kristaps 109: { in_line_eoln, 0 }, /* %A */
110: { in_line_eoln, 0 }, /* %B */
111: { in_line_eoln, 0 }, /* %D */
112: { in_line_eoln, 0 }, /* %I */
113: { in_line_eoln, 0 }, /* %J */
114: { in_line_eoln, 0 }, /* %N */
115: { in_line_eoln, 0 }, /* %O */
116: { in_line_eoln, 0 }, /* %P */
117: { in_line_eoln, 0 }, /* %R */
118: { in_line_eoln, 0 }, /* %T */
119: { in_line_eoln, 0 }, /* %V */
120: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
121: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
122: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
123: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
124: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
125: { blk_full, MDOC_EXPLICIT }, /* Bf */
126: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
127: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
128: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
129: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
130: { in_line_eoln, 0 }, /* Db */
131: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
132: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
133: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
134: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
135: { blk_exp_close, MDOC_EXPLICIT }, /* Ef */
136: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
137: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 139: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.1 kristaps 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* No */
141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ns */
142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
144: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.52 kristaps 145: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.1 kristaps 146: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
147: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
148: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
149: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
150: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
151: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
152: { blk_exp_close, MDOC_EXPLICIT }, /* Re */
153: { blk_full, MDOC_EXPLICIT }, /* Rs */
154: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
155: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
156: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
157: { in_line_eoln, 0 }, /* Sm */
158: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
159: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
160: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
161: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
162: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
163: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
164: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
165: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
166: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
167: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
168: { blk_full, MDOC_EXPLICIT }, /* Bk */
169: { blk_exp_close, MDOC_EXPLICIT }, /* Ek */
170: { in_line_eoln, 0 }, /* Bt */
171: { in_line_eoln, 0 }, /* Hf */
172: { obsolete, 0 }, /* Fr */
173: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 174: { in_line, 0 }, /* Lb */
1.21 kristaps 175: { in_line_eoln, 0 }, /* Lp */
1.12 kristaps 176: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
177: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
1.1 kristaps 178: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
179: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
180: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
181: { in_line_eoln, 0 }, /* %C */
182: { obsolete, 0 }, /* Es */
183: { obsolete, 0 }, /* En */
184: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
185: { in_line_eoln, 0 }, /* %Q */
1.20 kristaps 186: { in_line_eoln, 0 }, /* br */
187: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 188: { in_line_eoln, 0 }, /* %U */
1.75 kristaps 189: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
1.1 kristaps 190: };
191:
192: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
193:
194:
195: /*
196: * This is called at the end of parsing. It must traverse up the tree,
197: * closing out open [implicit] scopes. Obviously, open explicit scopes
198: * are errors.
199: */
200: int
1.32 kristaps 201: mdoc_macroend(struct mdoc *m)
1.1 kristaps 202: {
203: struct mdoc_node *n;
204:
205: /* Scan for open explicit scopes. */
206:
1.32 kristaps 207: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 208:
209: for ( ; n; n = n->parent) {
210: if (MDOC_BLOCK != n->type)
211: continue;
212: if ( ! (MDOC_EXPLICIT & mdoc_macros[n->tok].flags))
213: continue;
1.68 kristaps 214: mdoc_nmsg(m, n, MANDOCERR_SYNTSCOPE);
215: return(0);
1.1 kristaps 216: }
217:
1.32 kristaps 218: /* Rewind to the first. */
219:
220: return(rew_last(m, m->first));
1.1 kristaps 221: }
222:
1.32 kristaps 223:
224: /*
225: * Look up a macro from within a subsequent context.
226: */
1.53 kristaps 227: static enum mdoct
1.58 kristaps 228: lookup(enum mdoct from, const char *p)
1.28 kristaps 229: {
1.36 kristaps 230: /* FIXME: make -diag lists be un-PARSED. */
1.28 kristaps 231:
232: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
233: return(MDOC_MAX);
1.35 kristaps 234: return(lookup_raw(p));
1.28 kristaps 235: }
236:
237:
1.32 kristaps 238: /*
239: * Lookup a macro following the initial line macro.
240: */
1.53 kristaps 241: static enum mdoct
1.35 kristaps 242: lookup_raw(const char *p)
1.1 kristaps 243: {
1.58 kristaps 244: enum mdoct res;
1.1 kristaps 245:
1.34 kristaps 246: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.28 kristaps 247: return(MDOC_MAX);
248: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 249: return(res);
250: return(MDOC_MAX);
251: }
252:
253:
254: static int
1.32 kristaps 255: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 256: {
257:
258: assert(to);
259: mdoc->next = MDOC_NEXT_SIBLING;
260:
261: /* LINTED */
262: while (mdoc->last != to) {
263: if ( ! mdoc_valid_post(mdoc))
264: return(0);
265: if ( ! mdoc_action_post(mdoc))
266: return(0);
267: mdoc->last = mdoc->last->parent;
268: assert(mdoc->last);
269: }
270:
271: if ( ! mdoc_valid_post(mdoc))
272: return(0);
273: return(mdoc_action_post(mdoc));
274: }
275:
276:
1.32 kristaps 277: /*
1.84 schwarze 278: * For a block closing macro, return the corresponding opening one.
279: * Otherwise, return the macro itself.
1.32 kristaps 280: */
1.47 kristaps 281: static enum mdoct
282: rew_alt(enum mdoct tok)
1.1 kristaps 283: {
284: switch (tok) {
285: case (MDOC_Ac):
286: return(MDOC_Ao);
287: case (MDOC_Bc):
288: return(MDOC_Bo);
289: case (MDOC_Brc):
290: return(MDOC_Bro);
291: case (MDOC_Dc):
292: return(MDOC_Do);
293: case (MDOC_Ec):
294: return(MDOC_Eo);
295: case (MDOC_Ed):
296: return(MDOC_Bd);
297: case (MDOC_Ef):
298: return(MDOC_Bf);
299: case (MDOC_Ek):
300: return(MDOC_Bk);
301: case (MDOC_El):
302: return(MDOC_Bl);
303: case (MDOC_Fc):
304: return(MDOC_Fo);
305: case (MDOC_Oc):
306: return(MDOC_Oo);
307: case (MDOC_Pc):
308: return(MDOC_Po);
309: case (MDOC_Qc):
310: return(MDOC_Qo);
311: case (MDOC_Re):
312: return(MDOC_Rs);
313: case (MDOC_Sc):
314: return(MDOC_So);
315: case (MDOC_Xc):
316: return(MDOC_Xo);
317: default:
1.84 schwarze 318: return(tok);
1.1 kristaps 319: }
320: /* NOTREACHED */
321: }
322:
323:
1.84 schwarze 324: /*
325: * Rewinding to tok, how do we have to handle *p?
326: * REWIND_NONE: *p would delimit tok, but no tok scope is open
327: * inside *p, so there is no need to rewind anything at all.
328: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
329: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
330: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
331: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 332: */
1.51 kristaps 333: static enum rew
1.47 kristaps 334: rew_dohalt(enum mdoct tok, enum mdoc_type type,
335: const struct mdoc_node *p)
1.1 kristaps 336: {
337:
338: if (MDOC_ROOT == p->type)
1.84 schwarze 339: return(MDOC_BLOCK == type &&
340: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
341: REWIND_ERROR : REWIND_NONE);
342: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
343: return(REWIND_MORE);
344:
345: tok = rew_alt(tok);
346: if (tok == p->tok)
347: return(p->end ? REWIND_NONE :
348: type == p->type ? REWIND_THIS : REWIND_MORE);
349:
350: if (MDOC_ELEM == p->type)
351: return(REWIND_MORE);
1.1 kristaps 352:
353: switch (tok) {
1.84 schwarze 354: case (MDOC_Bl):
355: if (MDOC_It == p->tok)
356: return(REWIND_MORE);
1.1 kristaps 357: break;
358: case (MDOC_It):
359: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.84 schwarze 360: return(REWIND_NONE);
1.1 kristaps 361: break;
1.84 schwarze 362: /*
363: * XXX Badly nested block handling still fails badly
364: * when one block is breaking two blocks of the same type.
365: * This is an incomplete and extremely ugly workaround,
366: * required to let the OpenBSD tree build.
367: */
368: case (MDOC_Oo):
369: if (MDOC_Op == p->tok)
370: return(REWIND_MORE);
1.1 kristaps 371: break;
1.19 kristaps 372: case (MDOC_Nd):
373: /* FALLTHROUGH */
1.1 kristaps 374: case (MDOC_Ss):
375: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.84 schwarze 376: return(REWIND_NONE);
1.1 kristaps 377: /* FALLTHROUGH */
378: case (MDOC_Sh):
1.84 schwarze 379: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
380: MDOC_Sh == p->tok)
381: return(REWIND_MORE);
1.1 kristaps 382: break;
383: default:
384: break;
385: }
386:
1.84 schwarze 387: return(p->end || (MDOC_BLOCK == p->type &&
388: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) ?
389: REWIND_MORE : REWIND_LATER);
1.1 kristaps 390: }
391:
392:
393: static int
1.47 kristaps 394: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 395: {
396: struct mdoc_node *n;
397:
398: n = mdoc->last;
399: if (MDOC_ELEM != n->type)
400: n = n->parent;
401: assert(MDOC_ELEM == n->type);
402: assert(tok == n->tok);
403:
404: return(rew_last(mdoc, n));
405: }
406:
407:
1.83 schwarze 408: /*
409: * We are trying to close a block identified by tok,
410: * but the child block *broken is still open.
411: * Thus, postpone closing the tok block
412: * until the rew_sub call closing *broken.
413: */
414: static int
415: make_pending(struct mdoc_node *broken, enum mdoct tok,
416: struct mdoc *m, int line, int ppos)
417: {
418: struct mdoc_node *breaker;
419:
420: /*
421: * Iterate backwards, searching for the block matching tok,
422: * that is, the block breaking the *broken block.
423: */
424: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
425:
426: /*
427: * If the *broken block had already been broken before
428: * and we encounter its breaker, make the tok block
429: * pending on the inner breaker.
430: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
431: * becomes "[A broken=[B [C->B B] tok=A] C]"
432: * and finally "[A [B->A [C->B B] A] C]".
433: */
434: if (breaker == broken->pending) {
435: broken = breaker;
436: continue;
437: }
438:
1.84 schwarze 439: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.83 schwarze 440: continue;
441: if (MDOC_BODY == broken->type)
442: broken = broken->parent;
443:
444: /*
445: * Found the breaker.
446: * If another, outer breaker is already pending on
447: * the *broken block, we must not clobber the link
448: * to the outer breaker, but make it pending on the
449: * new, now inner breaker.
450: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
451: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
452: * and finally "[A [B->A [C->B A] B] C]".
453: */
454: if (broken->pending) {
455: struct mdoc_node *taker;
456:
457: /*
458: * If the breaker had also been broken before,
459: * it cannot take on the outer breaker itself,
460: * but must hand it on to its own breakers.
461: * Graphically, this is the following situation:
462: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
463: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
464: */
465: taker = breaker;
466: while (taker->pending)
467: taker = taker->pending;
468: taker->pending = broken->pending;
469: }
470: broken->pending = breaker;
471: mdoc_vmsg(m, MANDOCERR_SCOPE, line, ppos, "%s breaks %s",
472: mdoc_macronames[tok], mdoc_macronames[broken->tok]);
473: return(1);
474: }
475:
476: /*
477: * Found no matching block for tok.
478: * Are you trying to close a block that is not open?
1.84 schwarze 479: * XXX Make this non-fatal.
1.83 schwarze 480: */
481: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE);
482: return(0);
483: }
484:
1.84 schwarze 485:
1.1 kristaps 486: static int
1.32 kristaps 487: rew_sub(enum mdoc_type t, struct mdoc *m,
1.47 kristaps 488: enum mdoct tok, int line, int ppos)
1.1 kristaps 489: {
490: struct mdoc_node *n;
491:
1.84 schwarze 492: n = m->last;
493: while (n) {
494: switch (rew_dohalt(tok, t, n)) {
495: case (REWIND_NONE):
496: return(1);
497: case (REWIND_THIS):
498: break;
499: case (REWIND_MORE):
500: n = n->parent;
501: continue;
502: case (REWIND_LATER):
503: return(make_pending(n, tok, m, line, ppos));
504: case (REWIND_ERROR):
505: /* XXX Make this non-fatal. */
1.68 kristaps 506: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE);
1.84 schwarze 507: return 0;
1.32 kristaps 508: }
1.84 schwarze 509: break;
1.1 kristaps 510: }
511:
512: assert(n);
1.47 kristaps 513: if ( ! rew_last(m, n))
514: return(0);
515:
516: /*
1.83 schwarze 517: * The current block extends an enclosing block.
518: * Now that the current block ends, close the enclosing block, too.
1.47 kristaps 519: */
1.83 schwarze 520: while (NULL != (n = n->pending)) {
1.47 kristaps 521: if ( ! rew_last(m, n))
522: return(0);
1.83 schwarze 523: if (MDOC_HEAD == n->type &&
524: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.47 kristaps 525: return(0);
526: }
527:
528: return(1);
1.1 kristaps 529: }
530:
531:
532: static int
1.66 kristaps 533: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 534: {
1.66 kristaps 535: int la;
1.55 kristaps 536: enum margserr ac;
1.1 kristaps 537: char *p;
538:
1.66 kristaps 539: if ('\0' == buf[*pos])
1.1 kristaps 540: return(1);
541:
542: for (;;) {
1.66 kristaps 543: la = *pos;
544: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 545:
1.53 kristaps 546: if (ARGS_ERROR == ac)
1.1 kristaps 547: return(0);
1.53 kristaps 548: else if (ARGS_EOLN == ac)
1.1 kristaps 549: break;
1.66 kristaps 550:
1.67 schwarze 551: assert(DELIM_NONE != mdoc_isdelim(p));
1.66 kristaps 552: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 553: return(0);
1.66 kristaps 554:
555: /*
556: * If we encounter end-of-sentence symbols, then trigger
557: * the double-space.
558: *
559: * XXX: it's easy to allow this to propogate outward to
560: * the last symbol, such that `. )' will cause the
561: * correct double-spacing. However, (1) groff isn't
562: * smart enough to do this and (2) it would require
563: * knowing which symbols break this behaviour, for
564: * example, `. ;' shouldn't propogate the double-space.
565: */
566: if (mandoc_eos(p, strlen(p)))
567: m->last->flags |= MDOC_EOS;
1.1 kristaps 568: }
569:
570: return(1);
571: }
572:
573:
574: /*
575: * Close out block partial/full explicit.
576: */
577: static int
578: blk_exp_close(MACRO_PROT_ARGS)
579: {
1.83 schwarze 580: struct mdoc_node *body; /* Our own body. */
581: struct mdoc_node *later; /* A sub-block starting later. */
582: struct mdoc_node *n; /* For searching backwards. */
583:
1.60 kristaps 584: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 585: enum margserr ac;
1.83 schwarze 586: enum mdoct atok, ntok;
1.1 kristaps 587: char *p;
588:
1.60 kristaps 589: nl = MDOC_NEWLINE & m->flags;
590:
1.1 kristaps 591: switch (tok) {
592: case (MDOC_Ec):
593: maxargs = 1;
594: break;
595: default:
596: maxargs = 0;
597: break;
598: }
599:
1.83 schwarze 600: /*
601: * Search backwards for beginnings of blocks,
602: * both of our own and of pending sub-blocks.
603: */
604: atok = rew_alt(tok);
605: body = later = NULL;
606: for (n = m->last; n; n = n->parent) {
607: if (MDOC_VALID & n->flags)
608: continue;
609:
610: /* Remember the start of our own body. */
611: if (MDOC_BODY == n->type && atok == n->tok) {
612: if ( ! n->end)
613: body = n;
614: continue;
615: }
616:
617: if (MDOC_BLOCK != n->type)
618: continue;
619: if (atok == n->tok) {
620: assert(body);
621:
622: /*
623: * Found the start of our own block.
624: * When there is no pending sub block,
625: * just proceed to closing out.
626: */
627: if (NULL == later)
628: break;
629:
630: /*
631: * When there is a pending sub block,
632: * postpone closing out the current block
633: * until the rew_sub() closing out the sub-block.
634: */
635: if ( ! make_pending(later, tok, m, line, ppos))
636: return(0);
637:
638: /*
639: * Mark the place where the formatting - but not
640: * the scope - of the current block ends.
641: */
642: if ( ! mdoc_endbody_alloc(m, line, ppos,
643: atok, body, ENDBODY_SPACE))
644: return(0);
645: break;
646: }
647:
648: /*
649: * When finding an open sub block, remember the last
650: * open explicit block, or, in case there are only
651: * implicit ones, the first open implicit block.
652: */
653: if (later &&
654: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
655: continue;
656: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags) {
657: assert( ! (MDOC_ACTED & n->flags));
658: later = n;
659: }
660: }
661:
1.1 kristaps 662: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.68 kristaps 663: /* FIXME: do this in validate */
1.22 kristaps 664: if (buf[*pos])
1.68 kristaps 665: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 666: return(0);
1.22 kristaps 667:
1.32 kristaps 668: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 kristaps 669: return(0);
1.32 kristaps 670: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 671: }
672:
1.32 kristaps 673: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 674: return(0);
675:
1.83 schwarze 676: if (NULL == later && maxargs > 0)
1.32 kristaps 677: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 678: return(0);
679:
1.27 kristaps 680: for (flushed = j = 0; ; j++) {
1.1 kristaps 681: lastarg = *pos;
682:
683: if (j == maxargs && ! flushed) {
1.32 kristaps 684: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 685: return(0);
686: flushed = 1;
687: }
688:
1.53 kristaps 689: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 690:
1.53 kristaps 691: if (ARGS_ERROR == ac)
1.1 kristaps 692: return(0);
1.53 kristaps 693: if (ARGS_PUNCT == ac)
1.1 kristaps 694: break;
1.53 kristaps 695: if (ARGS_EOLN == ac)
1.1 kristaps 696: break;
697:
1.54 kristaps 698: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
699:
700: if (MDOC_MAX == ntok) {
701: if ( ! mdoc_word_alloc(m, line, lastarg, p))
1.1 kristaps 702: return(0);
1.54 kristaps 703: continue;
704: }
1.1 kristaps 705:
1.54 kristaps 706: if ( ! flushed) {
707: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
708: return(0);
709: flushed = 1;
710: }
1.82 kristaps 711: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 712: return(0);
1.54 kristaps 713: break;
1.1 kristaps 714: }
715:
1.32 kristaps 716: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 717: return(0);
718:
1.60 kristaps 719: if ( ! nl)
1.1 kristaps 720: return(1);
1.32 kristaps 721: return(append_delims(m, line, pos, buf));
1.1 kristaps 722: }
723:
724:
725: static int
726: in_line(MACRO_PROT_ARGS)
727: {
1.70 kristaps 728: int la, scope, cnt, nc, nl;
1.56 kristaps 729: enum margverr av;
1.53 kristaps 730: enum mdoct ntok;
1.55 kristaps 731: enum margserr ac;
1.67 schwarze 732: enum mdelim d;
1.53 kristaps 733: struct mdoc_arg *arg;
734: char *p;
1.1 kristaps 735:
1.60 kristaps 736: nl = MDOC_NEWLINE & m->flags;
737:
1.4 kristaps 738: /*
739: * Whether we allow ignored elements (those without content,
740: * usually because of reserved words) to squeak by.
741: */
1.45 kristaps 742:
1.4 kristaps 743: switch (tok) {
1.26 kristaps 744: case (MDOC_An):
745: /* FALLTHROUGH */
746: case (MDOC_Ar):
1.4 kristaps 747: /* FALLTHROUGH */
748: case (MDOC_Fl):
749: /* FALLTHROUGH */
1.12 kristaps 750: case (MDOC_Lk):
751: /* FALLTHROUGH */
1.26 kristaps 752: case (MDOC_Nm):
753: /* FALLTHROUGH */
1.25 kristaps 754: case (MDOC_Pa):
1.4 kristaps 755: nc = 1;
756: break;
757: default:
758: nc = 0;
759: break;
760: }
761:
1.27 kristaps 762: for (arg = NULL;; ) {
1.1 kristaps 763: la = *pos;
1.56 kristaps 764: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 765:
1.56 kristaps 766: if (ARGV_WORD == av) {
1.1 kristaps 767: *pos = la;
768: break;
769: }
1.56 kristaps 770: if (ARGV_EOLN == av)
1.1 kristaps 771: break;
1.56 kristaps 772: if (ARGV_ARG == av)
1.1 kristaps 773: continue;
774:
775: mdoc_argv_free(arg);
776: return(0);
777: }
778:
1.70 kristaps 779: for (cnt = scope = 0;; ) {
1.1 kristaps 780: la = *pos;
1.53 kristaps 781: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 782:
1.53 kristaps 783: if (ARGS_ERROR == ac)
1.1 kristaps 784: return(0);
1.53 kristaps 785: if (ARGS_EOLN == ac)
1.1 kristaps 786: break;
1.53 kristaps 787: if (ARGS_PUNCT == ac)
1.1 kristaps 788: break;
789:
1.53 kristaps 790: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 791:
1.4 kristaps 792: /*
793: * In this case, we've located a submacro and must
794: * execute it. Close out scope, if open. If no
795: * elements have been generated, either create one (nc)
796: * or raise a warning.
797: */
1.1 kristaps 798:
1.53 kristaps 799: if (MDOC_MAX != ntok) {
1.70 kristaps 800: if (scope && ! rew_elem(m, tok))
1.1 kristaps 801: return(0);
1.4 kristaps 802: if (nc && 0 == cnt) {
1.32 kristaps 803: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 804: return(0);
1.32 kristaps 805: if ( ! rew_last(m, m->last))
1.12 kristaps 806: return(0);
1.7 kristaps 807: } else if ( ! nc && 0 == cnt) {
808: mdoc_argv_free(arg);
1.68 kristaps 809: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 810: return(0);
1.7 kristaps 811: }
1.82 kristaps 812: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 813: return(0);
1.60 kristaps 814: if ( ! nl)
1.1 kristaps 815: return(1);
1.32 kristaps 816: return(append_delims(m, line, pos, buf));
1.29 kristaps 817: }
1.1 kristaps 818:
1.4 kristaps 819: /*
820: * Non-quote-enclosed punctuation. Set up our scope, if
821: * a word; rewind the scope, if a delimiter; then append
822: * the word.
823: */
1.1 kristaps 824:
1.67 schwarze 825: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 826:
1.70 kristaps 827: if (DELIM_NONE != d) {
828: /*
829: * If we encounter closing punctuation, no word
830: * has been omitted, no scope is open, and we're
831: * allowed to have an empty element, then start
832: * a new scope. `Ar', `Fl', and `Li', only do
833: * this once per invocation. There may be more
834: * of these (all of them?).
835: */
836: if (0 == cnt && (nc || MDOC_Li == tok) &&
837: DELIM_CLOSE == d && ! scope) {
838: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
839: return(0);
840: if (MDOC_Ar == tok || MDOC_Li == tok ||
841: MDOC_Fl == tok)
842: cnt++;
843: scope = 1;
844: }
845: /*
846: * Close out our scope, if one is open, before
847: * any punctuation.
848: */
849: if (scope && ! rew_elem(m, tok))
1.1 kristaps 850: return(0);
1.70 kristaps 851: scope = 0;
852: } else if ( ! scope) {
1.32 kristaps 853: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 854: return(0);
1.70 kristaps 855: scope = 1;
1.1 kristaps 856: }
857:
1.67 schwarze 858: if (DELIM_NONE == d)
1.3 kristaps 859: cnt++;
1.32 kristaps 860: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 861: return(0);
1.39 kristaps 862:
863: /*
864: * `Fl' macros have their scope re-opened with each new
865: * word so that the `-' can be added to each one without
866: * having to parse out spaces.
867: */
1.70 kristaps 868: if (scope && MDOC_Fl == tok) {
1.39 kristaps 869: if ( ! rew_elem(m, tok))
870: return(0);
1.70 kristaps 871: scope = 0;
1.39 kristaps 872: }
1.1 kristaps 873: }
874:
1.70 kristaps 875: if (scope && ! rew_elem(m, tok))
1.1 kristaps 876: return(0);
1.4 kristaps 877:
878: /*
879: * If no elements have been collected and we're allowed to have
880: * empties (nc), open a scope and close it out. Otherwise,
881: * raise a warning.
882: */
1.45 kristaps 883:
1.4 kristaps 884: if (nc && 0 == cnt) {
1.32 kristaps 885: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 886: return(0);
1.32 kristaps 887: if ( ! rew_last(m, m->last))
1.12 kristaps 888: return(0);
1.7 kristaps 889: } else if ( ! nc && 0 == cnt) {
890: mdoc_argv_free(arg);
1.68 kristaps 891: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 892: return(0);
1.7 kristaps 893: }
1.4 kristaps 894:
1.60 kristaps 895: if ( ! nl)
1.1 kristaps 896: return(1);
1.32 kristaps 897: return(append_delims(m, line, pos, buf));
1.1 kristaps 898: }
899:
900:
901: static int
902: blk_full(MACRO_PROT_ARGS)
903: {
1.63 kristaps 904: int la, nl;
1.1 kristaps 905: struct mdoc_arg *arg;
1.45 kristaps 906: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 907: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 908: struct mdoc_node *n;
1.74 kristaps 909: enum mdoc_type mtt;
1.53 kristaps 910: enum mdoct ntok;
1.59 kristaps 911: enum margserr ac, lac;
1.56 kristaps 912: enum margverr av;
1.1 kristaps 913: char *p;
914:
1.63 kristaps 915: nl = MDOC_NEWLINE & m->flags;
916:
1.45 kristaps 917: /* Close out prior implicit scope. */
1.19 kristaps 918:
1.1 kristaps 919: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.32 kristaps 920: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 921: return(0);
1.32 kristaps 922: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 923: return(0);
924: }
925:
1.45 kristaps 926: /*
927: * This routine accomodates implicitly- and explicitly-scoped
928: * macro openings. Implicit ones first close out prior scope
929: * (seen above). Delay opening the head until necessary to
930: * allow leading punctuation to print. Special consideration
931: * for `It -column', which has phrase-part syntax instead of
932: * regular child nodes.
933: */
934:
1.1 kristaps 935: for (arg = NULL;; ) {
1.45 kristaps 936: la = *pos;
1.56 kristaps 937: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 938:
1.56 kristaps 939: if (ARGV_WORD == av) {
1.45 kristaps 940: *pos = la;
1.1 kristaps 941: break;
942: }
943:
1.56 kristaps 944: if (ARGV_EOLN == av)
1.1 kristaps 945: break;
1.56 kristaps 946: if (ARGV_ARG == av)
1.1 kristaps 947: continue;
948:
949: mdoc_argv_free(arg);
950: return(0);
951: }
952:
1.32 kristaps 953: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 954: return(0);
955:
1.49 kristaps 956: head = body = NULL;
1.1 kristaps 957:
1.45 kristaps 958: /*
959: * The `Nd' macro has all arguments in its body: it's a hybrid
960: * of block partial-explicit and full-implicit. Stupid.
961: */
1.19 kristaps 962:
1.45 kristaps 963: if (MDOC_Nd == tok) {
964: if ( ! mdoc_head_alloc(m, line, ppos, tok))
965: return(0);
966: head = m->last;
1.32 kristaps 967: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.19 kristaps 968: return(0);
1.32 kristaps 969: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.19 kristaps 970: return(0);
1.49 kristaps 971: body = m->last;
1.19 kristaps 972: }
973:
1.59 kristaps 974: ac = ARGS_ERROR;
975:
1.62 kristaps 976: for ( ; ; ) {
1.45 kristaps 977: la = *pos;
1.75 kristaps 978: /* Initialise last-phrase-type with ARGS_PEND. */
979: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.53 kristaps 980: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 981:
1.53 kristaps 982: if (ARGS_ERROR == ac)
1.1 kristaps 983: return(0);
1.75 kristaps 984:
985: if (ARGS_EOLN == ac) {
986: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
987: break;
988: /*
989: * This is necessary: if the last token on a
990: * line is a `Ta' or tab, then we'll get
991: * ARGS_EOLN, so we must be smart enough to
992: * reopen our scope if the last parse was a
993: * phrase or partial phrase.
994: */
995: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
996: return(0);
997: if ( ! mdoc_body_alloc(m, line, ppos, tok))
998: return(0);
999: body = m->last;
1.1 kristaps 1000: break;
1.75 kristaps 1001: }
1.45 kristaps 1002:
1.73 kristaps 1003: /*
1004: * Emit leading punctuation (i.e., punctuation before
1005: * the MDOC_HEAD) for non-phrase types.
1006: */
1.45 kristaps 1007:
1.59 kristaps 1008: if (NULL == head &&
1.71 kristaps 1009: ARGS_PEND != ac &&
1.59 kristaps 1010: ARGS_PHRASE != ac &&
1.57 kristaps 1011: ARGS_PPHRASE != ac &&
1.53 kristaps 1012: ARGS_QWORD != ac &&
1.67 schwarze 1013: DELIM_OPEN == mdoc_isdelim(p)) {
1.45 kristaps 1014: if ( ! mdoc_word_alloc(m, line, la, p))
1015: return(0);
1016: continue;
1017: }
1018:
1.74 kristaps 1019: /* Open a head if one hasn't been opened. */
1.45 kristaps 1020:
1.74 kristaps 1021: if (NULL == head) {
1.45 kristaps 1022: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1023: return(0);
1024: head = m->last;
1025: }
1026:
1.72 kristaps 1027: if (ARGS_PHRASE == ac ||
1028: ARGS_PEND == ac ||
1029: ARGS_PPHRASE == ac) {
1.73 kristaps 1030: /*
1.74 kristaps 1031: * If we haven't opened a body yet, rewind the
1032: * head; if we have, rewind that instead.
1033: */
1034:
1035: mtt = body ? MDOC_BODY : MDOC_HEAD;
1036: if ( ! rew_sub(mtt, m, tok, line, ppos))
1037: return(0);
1038:
1039: /* Then allocate our body context. */
1040:
1041: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1042: return(0);
1043: body = m->last;
1044:
1045: /*
1.73 kristaps 1046: * Process phrases: set whether we're in a
1047: * partial-phrase (this effects line handling)
1048: * then call down into the phrase parser.
1049: */
1.74 kristaps 1050:
1.65 kristaps 1051: if (ARGS_PPHRASE == ac)
1052: m->flags |= MDOC_PPHRASE;
1.71 kristaps 1053: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1054: m->flags |= MDOC_PPHRASE;
1055:
1.82 kristaps 1056: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1057: return(0);
1.71 kristaps 1058:
1.65 kristaps 1059: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1060: continue;
1061: }
1062:
1.54 kristaps 1063: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1064:
1065: if (MDOC_MAX == ntok) {
1.53 kristaps 1066: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1067: return(0);
1.53 kristaps 1068: continue;
1.45 kristaps 1069: }
1.53 kristaps 1070:
1.82 kristaps 1071: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.45 kristaps 1072: return(0);
1.53 kristaps 1073: break;
1.45 kristaps 1074: }
1.1 kristaps 1075:
1.45 kristaps 1076: if (NULL == head) {
1077: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1078: return(0);
1.45 kristaps 1079: head = m->last;
1.1 kristaps 1080: }
1081:
1.63 kristaps 1082: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1083: return(0);
1.19 kristaps 1084:
1.49 kristaps 1085: /* If we've already opened our body, exit now. */
1.45 kristaps 1086:
1.49 kristaps 1087: if (NULL != body)
1.77 kristaps 1088: goto out;
1.19 kristaps 1089:
1.47 kristaps 1090: /*
1.49 kristaps 1091: * If there is an open (i.e., unvalidated) sub-block requiring
1092: * explicit close-out, postpone switching the current block from
1093: * head to body until the rew_sub() call closing out that
1094: * sub-block.
1.47 kristaps 1095: */
1096: for (n = m->last; n && n != head; n = n->parent) {
1.49 kristaps 1097: if (MDOC_BLOCK == n->type &&
1098: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1099: ! (MDOC_VALID & n->flags)) {
1100: assert( ! (MDOC_ACTED & n->flags));
1.47 kristaps 1101: n->pending = head;
1102: return(1);
1103: }
1104: }
1105:
1.45 kristaps 1106: /* Close out scopes to remain in a consistent state. */
1107:
1.32 kristaps 1108: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1109: return(0);
1.32 kristaps 1110: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1111: return(0);
1112:
1.77 kristaps 1113: out:
1114: if ( ! (MDOC_FREECOL & m->flags))
1115: return(1);
1116:
1117: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1118: return(0);
1119: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1120: return(0);
1121:
1122: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1123: return(1);
1124: }
1125:
1126:
1127: static int
1128: blk_part_imp(MACRO_PROT_ARGS)
1129: {
1.63 kristaps 1130: int la, nl;
1.53 kristaps 1131: enum mdoct ntok;
1.55 kristaps 1132: enum margserr ac;
1.1 kristaps 1133: char *p;
1.43 kristaps 1134: struct mdoc_node *blk; /* saved block context */
1135: struct mdoc_node *body; /* saved body context */
1136: struct mdoc_node *n;
1.1 kristaps 1137:
1.63 kristaps 1138: nl = MDOC_NEWLINE & m->flags;
1139:
1.43 kristaps 1140: /*
1141: * A macro that spans to the end of the line. This is generally
1142: * (but not necessarily) called as the first macro. The block
1143: * has a head as the immediate child, which is always empty,
1144: * followed by zero or more opening punctuation nodes, then the
1145: * body (which may be empty, depending on the macro), then zero
1146: * or more closing punctuation nodes.
1147: */
1.32 kristaps 1148:
1149: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1150: return(0);
1.43 kristaps 1151:
1.32 kristaps 1152: blk = m->last;
1.43 kristaps 1153:
1.32 kristaps 1154: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1155: return(0);
1.32 kristaps 1156: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1157: return(0);
1158:
1.43 kristaps 1159: /*
1160: * Open the body scope "on-demand", that is, after we've
1161: * processed all our the leading delimiters (open parenthesis,
1162: * etc.).
1163: */
1.1 kristaps 1164:
1.43 kristaps 1165: for (body = NULL; ; ) {
1.32 kristaps 1166: la = *pos;
1.53 kristaps 1167: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.43 kristaps 1168:
1.53 kristaps 1169: if (ARGS_ERROR == ac)
1.1 kristaps 1170: return(0);
1.53 kristaps 1171: if (ARGS_EOLN == ac)
1.43 kristaps 1172: break;
1.53 kristaps 1173: if (ARGS_PUNCT == ac)
1.1 kristaps 1174: break;
1175:
1.53 kristaps 1176: if (NULL == body && ARGS_QWORD != ac &&
1.67 schwarze 1177: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 kristaps 1178: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1179: return(0);
1180: continue;
1181: }
1182:
1.43 kristaps 1183: if (NULL == body) {
1184: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1185: return(0);
1186: body = m->last;
1187: }
1188:
1.54 kristaps 1189: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1190:
1191: if (MDOC_MAX == ntok) {
1.53 kristaps 1192: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1193: return(0);
1.53 kristaps 1194: continue;
1195: }
1.43 kristaps 1196:
1.82 kristaps 1197: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1198: return(0);
1.53 kristaps 1199: break;
1.1 kristaps 1200: }
1201:
1.43 kristaps 1202: /* Clean-ups to leave in a consistent state. */
1203:
1.44 kristaps 1204: if (NULL == body) {
1205: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1206: return(0);
1207: body = m->last;
1.64 kristaps 1208: }
1209:
1210: for (n = body->child; n && n->next; n = n->next)
1211: /* Do nothing. */ ;
1212:
1213: /*
1214: * End of sentence spacing: if the last node is a text node and
1215: * has a trailing period, then mark it as being end-of-sentence.
1216: */
1217:
1218: if (n && MDOC_TEXT == n->type && n->string)
1219: if (mandoc_eos(n->string, strlen(n->string)))
1220: n->flags |= MDOC_EOS;
1221:
1222: /* Up-propogate the end-of-space flag. */
1223:
1224: if (n && (MDOC_EOS & n->flags)) {
1225: body->flags |= MDOC_EOS;
1226: body->parent->flags |= MDOC_EOS;
1.44 kristaps 1227: }
1.43 kristaps 1228:
1.83 schwarze 1229: /*
1230: * If there is an open sub-block requiring explicit close-out,
1231: * postpone closing out the current block
1232: * until the rew_sub() call closing out the sub-block.
1233: */
1234: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1235: if (MDOC_BLOCK == n->type &&
1236: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1237: ! (MDOC_VALID & n->flags)) {
1238: assert( ! (MDOC_ACTED & n->flags));
1239: if ( ! make_pending(n, tok, m, line, ppos))
1240: return(0);
1241: if ( ! mdoc_endbody_alloc(m, line, ppos,
1242: tok, body, ENDBODY_NOSPACE))
1243: return(0);
1244: return(1);
1245: }
1246: }
1247:
1.32 kristaps 1248: /*
1249: * If we can't rewind to our body, then our scope has already
1250: * been closed by another macro (like `Oc' closing `Op'). This
1251: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1252: * crufty use of `Op' breakage.
1.1 kristaps 1253: */
1.83 schwarze 1254: if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPE, line, ppos,
1255: "%s broken", mdoc_macronames[tok]))
1.32 kristaps 1256: return(0);
1.43 kristaps 1257:
1.83 schwarze 1258: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.32 kristaps 1259: return(0);
1.1 kristaps 1260:
1.32 kristaps 1261: /* Standard appending of delimiters. */
1.1 kristaps 1262:
1.63 kristaps 1263: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1264: return(0);
1265:
1.32 kristaps 1266: /* Rewind scope, if applicable. */
1.1 kristaps 1267:
1.83 schwarze 1268: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1269: return(0);
1270:
1271: return(1);
1272: }
1273:
1274:
1275: static int
1276: blk_part_exp(MACRO_PROT_ARGS)
1277: {
1.60 kristaps 1278: int la, nl;
1.55 kristaps 1279: enum margserr ac;
1.43 kristaps 1280: struct mdoc_node *head; /* keep track of head */
1281: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1282: char *p;
1.53 kristaps 1283: enum mdoct ntok;
1.1 kristaps 1284:
1.60 kristaps 1285: nl = MDOC_NEWLINE & m->flags;
1286:
1.43 kristaps 1287: /*
1288: * The opening of an explicit macro having zero or more leading
1289: * punctuation nodes; a head with optional single element (the
1290: * case of `Eo'); and a body that may be empty.
1291: */
1.32 kristaps 1292:
1293: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1294: return(0);
1.32 kristaps 1295:
1.43 kristaps 1296: for (head = body = NULL; ; ) {
1.32 kristaps 1297: la = *pos;
1.53 kristaps 1298: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1299:
1.53 kristaps 1300: if (ARGS_ERROR == ac)
1.1 kristaps 1301: return(0);
1.53 kristaps 1302: if (ARGS_PUNCT == ac)
1.1 kristaps 1303: break;
1.53 kristaps 1304: if (ARGS_EOLN == ac)
1.1 kristaps 1305: break;
1.43 kristaps 1306:
1307: /* Flush out leading punctuation. */
1308:
1.53 kristaps 1309: if (NULL == head && ARGS_QWORD != ac &&
1.67 schwarze 1310: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1311: assert(NULL == body);
1312: if ( ! mdoc_word_alloc(m, line, la, p))
1313: return(0);
1314: continue;
1315: }
1316:
1317: if (NULL == head) {
1318: assert(NULL == body);
1319: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1320: return(0);
1.43 kristaps 1321: head = m->last;
1.1 kristaps 1322: }
1323:
1.43 kristaps 1324: /*
1325: * `Eo' gobbles any data into the head, but most other
1326: * macros just immediately close out and begin the body.
1327: */
1328:
1329: if (NULL == body) {
1330: assert(head);
1331: /* No check whether it's a macro! */
1332: if (MDOC_Eo == tok)
1333: if ( ! mdoc_word_alloc(m, line, la, p))
1334: return(0);
1335:
1.32 kristaps 1336: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1337: return(0);
1.32 kristaps 1338: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1339: return(0);
1.43 kristaps 1340: body = m->last;
1341:
1342: if (MDOC_Eo == tok)
1343: continue;
1.1 kristaps 1344: }
1.43 kristaps 1345:
1346: assert(NULL != head && NULL != body);
1347:
1.54 kristaps 1348: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1349:
1350: if (MDOC_MAX == ntok) {
1.53 kristaps 1351: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1352: return(0);
1.53 kristaps 1353: continue;
1.43 kristaps 1354: }
1355:
1.82 kristaps 1356: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1357: return(0);
1.53 kristaps 1358: break;
1.1 kristaps 1359: }
1360:
1.43 kristaps 1361: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1362:
1.43 kristaps 1363: if (NULL == head) {
1364: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1365: return(0);
1366: head = m->last;
1367: }
1368:
1369: if (NULL == body) {
1.32 kristaps 1370: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1371: return(0);
1.32 kristaps 1372: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1373: return(0);
1.43 kristaps 1374: body = m->last;
1.1 kristaps 1375: }
1376:
1.32 kristaps 1377: /* Standard appending of delimiters. */
1378:
1.60 kristaps 1379: if ( ! nl)
1.1 kristaps 1380: return(1);
1.32 kristaps 1381: return(append_delims(m, line, pos, buf));
1.1 kristaps 1382: }
1383:
1384:
1.61 kristaps 1385: /* ARGSUSED */
1.1 kristaps 1386: static int
1387: in_line_argn(MACRO_PROT_ARGS)
1388: {
1.60 kristaps 1389: int la, flushed, j, maxargs, nl;
1.55 kristaps 1390: enum margserr ac;
1.56 kristaps 1391: enum margverr av;
1.53 kristaps 1392: struct mdoc_arg *arg;
1393: char *p;
1394: enum mdoct ntok;
1.1 kristaps 1395:
1.60 kristaps 1396: nl = MDOC_NEWLINE & m->flags;
1397:
1.46 kristaps 1398: /*
1399: * A line macro that has a fixed number of arguments (maxargs).
1400: * Only open the scope once the first non-leading-punctuation is
1401: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1402: * keep it open until the maximum number of arguments are
1403: * exhausted.
1404: */
1.1 kristaps 1405:
1406: switch (tok) {
1407: case (MDOC_Ap):
1408: /* FALLTHROUGH */
1409: case (MDOC_No):
1410: /* FALLTHROUGH */
1411: case (MDOC_Ns):
1412: /* FALLTHROUGH */
1413: case (MDOC_Ux):
1414: maxargs = 0;
1415: break;
1.42 kristaps 1416: case (MDOC_Xr):
1417: maxargs = 2;
1418: break;
1.1 kristaps 1419: default:
1420: maxargs = 1;
1421: break;
1422: }
1423:
1.46 kristaps 1424: for (arg = NULL; ; ) {
1.32 kristaps 1425: la = *pos;
1.56 kristaps 1426: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1427:
1.56 kristaps 1428: if (ARGV_WORD == av) {
1.32 kristaps 1429: *pos = la;
1.1 kristaps 1430: break;
1431: }
1432:
1.56 kristaps 1433: if (ARGV_EOLN == av)
1.1 kristaps 1434: break;
1.56 kristaps 1435: if (ARGV_ARG == av)
1.1 kristaps 1436: continue;
1437:
1438: mdoc_argv_free(arg);
1439: return(0);
1440: }
1441:
1.46 kristaps 1442: for (flushed = j = 0; ; ) {
1.32 kristaps 1443: la = *pos;
1.53 kristaps 1444: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1445:
1.53 kristaps 1446: if (ARGS_ERROR == ac)
1.1 kristaps 1447: return(0);
1.53 kristaps 1448: if (ARGS_PUNCT == ac)
1.1 kristaps 1449: break;
1.53 kristaps 1450: if (ARGS_EOLN == ac)
1.1 kristaps 1451: break;
1452:
1.46 kristaps 1453: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1454: ARGS_QWORD != ac &&
1.67 schwarze 1455: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.46 kristaps 1456: if ( ! mdoc_word_alloc(m, line, la, p))
1457: return(0);
1458: continue;
1459: } else if (0 == j)
1460: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1461: return(0);
1462:
1463: if (j == maxargs && ! flushed) {
1464: if ( ! rew_elem(m, tok))
1465: return(0);
1466: flushed = 1;
1467: }
1468:
1.54 kristaps 1469: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1470:
1471: if (MDOC_MAX != ntok) {
1.32 kristaps 1472: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1473: return(0);
1474: flushed = 1;
1.82 kristaps 1475: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1476: return(0);
1.46 kristaps 1477: j++;
1.1 kristaps 1478: break;
1479: }
1480:
1481: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1482: ARGS_QWORD != ac &&
1.67 schwarze 1483: ! flushed &&
1484: DELIM_NONE != mdoc_isdelim(p)) {
1.32 kristaps 1485: if ( ! rew_elem(m, tok))
1.1 kristaps 1486: return(0);
1487: flushed = 1;
1488: }
1.42 kristaps 1489:
1490: /*
1491: * XXX: this is a hack to work around groff's ugliness
1492: * as regards `Xr' and extraneous arguments. It should
1493: * ideally be deprecated behaviour, but because this is
1494: * code is no here, it's unlikely to be removed.
1495: */
1.43 kristaps 1496:
1.46 kristaps 1497: #ifdef __OpenBSD__
1.42 kristaps 1498: if (MDOC_Xr == tok && j == maxargs) {
1.46 kristaps 1499: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.42 kristaps 1500: return(0);
1501: if ( ! rew_elem(m, MDOC_Ns))
1502: return(0);
1503: }
1.46 kristaps 1504: #endif
1.42 kristaps 1505:
1.32 kristaps 1506: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1507: return(0);
1.46 kristaps 1508: j++;
1.1 kristaps 1509: }
1510:
1.46 kristaps 1511: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1512: return(0);
1513:
1514: /* Close out in a consistent state. */
1.32 kristaps 1515:
1516: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1517: return(0);
1.60 kristaps 1518: if ( ! nl)
1.1 kristaps 1519: return(1);
1.32 kristaps 1520: return(append_delims(m, line, pos, buf));
1.1 kristaps 1521: }
1522:
1523:
1524: static int
1525: in_line_eoln(MACRO_PROT_ARGS)
1526: {
1.56 kristaps 1527: int la;
1.55 kristaps 1528: enum margserr ac;
1.56 kristaps 1529: enum margverr av;
1.53 kristaps 1530: struct mdoc_arg *arg;
1531: char *p;
1532: enum mdoct ntok;
1.1 kristaps 1533:
1534: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1535:
1.32 kristaps 1536: /* Parse macro arguments. */
1.1 kristaps 1537:
1.32 kristaps 1538: for (arg = NULL; ; ) {
1.1 kristaps 1539: la = *pos;
1.56 kristaps 1540: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1541:
1.56 kristaps 1542: if (ARGV_WORD == av) {
1.1 kristaps 1543: *pos = la;
1544: break;
1545: }
1.56 kristaps 1546: if (ARGV_EOLN == av)
1.1 kristaps 1547: break;
1.56 kristaps 1548: if (ARGV_ARG == av)
1.1 kristaps 1549: continue;
1550:
1551: mdoc_argv_free(arg);
1552: return(0);
1553: }
1554:
1.32 kristaps 1555: /* Open element scope. */
1556:
1557: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1558: return(0);
1559:
1.32 kristaps 1560: /* Parse argument terms. */
1.1 kristaps 1561:
1562: for (;;) {
1563: la = *pos;
1.53 kristaps 1564: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1565:
1.53 kristaps 1566: if (ARGS_ERROR == ac)
1.1 kristaps 1567: return(0);
1.53 kristaps 1568: if (ARGS_EOLN == ac)
1.1 kristaps 1569: break;
1570:
1.53 kristaps 1571: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1572:
1.53 kristaps 1573: if (MDOC_MAX == ntok) {
1574: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1575: return(0);
1.53 kristaps 1576: continue;
1577: }
1.1 kristaps 1578:
1.53 kristaps 1579: if ( ! rew_elem(m, tok))
1.1 kristaps 1580: return(0);
1.82 kristaps 1581: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1582: }
1583:
1.32 kristaps 1584: /* Close out (no delimiters). */
1585:
1586: return(rew_elem(m, tok));
1.1 kristaps 1587: }
1588:
1589:
1590: /* ARGSUSED */
1591: static int
1.41 kristaps 1592: ctx_synopsis(MACRO_PROT_ARGS)
1593: {
1.60 kristaps 1594: int nl;
1595:
1596: nl = MDOC_NEWLINE & m->flags;
1.41 kristaps 1597:
1598: /* If we're not in the SYNOPSIS, go straight to in-line. */
1599: if (SEC_SYNOPSIS != m->lastsec)
1.82 kristaps 1600: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1601:
1602: /* If we're a nested call, same place. */
1.60 kristaps 1603: if ( ! nl)
1.82 kristaps 1604: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1605:
1606: /*
1607: * XXX: this will open a block scope; however, if later we end
1608: * up formatting the block scope, then child nodes will inherit
1609: * the formatting. Be careful.
1610: */
1611:
1.82 kristaps 1612: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.41 kristaps 1613: }
1614:
1615:
1616: /* ARGSUSED */
1617: static int
1.1 kristaps 1618: obsolete(MACRO_PROT_ARGS)
1619: {
1620:
1.68 kristaps 1621: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1622: }
1623:
1624:
1.24 kristaps 1625: /*
1626: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1627: * They're unusual because they're basically free-form text until a
1628: * macro is encountered.
1629: */
1.1 kristaps 1630: static int
1.82 kristaps 1631: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1632: {
1.53 kristaps 1633: int la, pos;
1.75 kristaps 1634: enum margserr ac;
1.53 kristaps 1635: enum mdoct ntok;
1636: char *p;
1.1 kristaps 1637:
1.24 kristaps 1638: for (pos = ppos; ; ) {
1639: la = pos;
1.1 kristaps 1640:
1.75 kristaps 1641: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1642:
1.75 kristaps 1643: if (ARGS_ERROR == ac)
1.24 kristaps 1644: return(0);
1.75 kristaps 1645: if (ARGS_EOLN == ac)
1.24 kristaps 1646: break;
1.1 kristaps 1647:
1.75 kristaps 1648: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1649:
1.53 kristaps 1650: if (MDOC_MAX == ntok) {
1651: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1652: return(0);
1.53 kristaps 1653: continue;
1654: }
1.1 kristaps 1655:
1.82 kristaps 1656: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1657: return(0);
1.53 kristaps 1658: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1659: }
1660:
1661: return(1);
1662: }
1.24 kristaps 1663:
1664:
1.79 kristaps 1665: /* ARGSUSED */
1.75 kristaps 1666: static int
1667: phrase_ta(MACRO_PROT_ARGS)
1668: {
1669: int la;
1670: enum mdoct ntok;
1671: enum margserr ac;
1672: char *p;
1673:
1674: /*
1675: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1676: * it should simply error out with ARGSLOST.
1677: */
1678:
1679: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1680: return(0);
1681: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1682: return(0);
1683:
1684: for (;;) {
1685: la = *pos;
1686: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1687:
1688: if (ARGS_ERROR == ac)
1689: return(0);
1690: if (ARGS_EOLN == ac)
1691: break;
1692:
1693: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1694:
1695: if (MDOC_MAX == ntok) {
1696: if ( ! mdoc_word_alloc(m, line, la, p))
1697: return(0);
1698: continue;
1699: }
1700:
1.82 kristaps 1701: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.75 kristaps 1702: return(0);
1703: return(append_delims(m, line, pos, buf));
1704: }
1705:
1706: return(1);
1707: }
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