Annotation of mandoc/mdoc_macro.c, Revision 1.82
1.82 ! kristaps 1: /* $Id: mdoc_macro.c,v 1.81 2010/06/26 16:07:08 kristaps 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:
1.51 kristaps 32: enum rew {
33: REWIND_REWIND,
34: REWIND_NOHALT,
35: REWIND_HALT
36: };
1.1 kristaps 37:
1.53 kristaps 38: static int blk_full(MACRO_PROT_ARGS);
39: static int blk_exp_close(MACRO_PROT_ARGS);
40: static int blk_part_exp(MACRO_PROT_ARGS);
41: static int blk_part_imp(MACRO_PROT_ARGS);
42: static int ctx_synopsis(MACRO_PROT_ARGS);
43: static int in_line_eoln(MACRO_PROT_ARGS);
44: static int in_line_argn(MACRO_PROT_ARGS);
45: static int in_line(MACRO_PROT_ARGS);
46: static int obsolete(MACRO_PROT_ARGS);
1.75 kristaps 47: static int phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 48:
49: static int append_delims(struct mdoc *,
50: int, int *, char *);
1.58 kristaps 51: static enum mdoct lookup(enum mdoct, const char *);
1.53 kristaps 52: static enum mdoct lookup_raw(const char *);
1.82 ! kristaps 53: static int phrase(struct mdoc *, int, int, char *);
1.53 kristaps 54: static enum mdoct rew_alt(enum mdoct);
55: static int rew_dobreak(enum mdoct,
56: const struct mdoc_node *);
57: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
58: const struct mdoc_node *);
59: static int rew_elem(struct mdoc *, enum mdoct);
60: static int rew_last(struct mdoc *,
61: const struct mdoc_node *);
62: static int rew_sub(enum mdoc_type, struct mdoc *,
63: enum mdoct, int, int);
64: static int swarn(struct mdoc *, enum mdoc_type, int,
65: int, const struct mdoc_node *);
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: static int
196: swarn(struct mdoc *mdoc, enum mdoc_type type,
197: int line, int pos, const struct mdoc_node *p)
198: {
199: const char *n, *t, *tt;
1.75 kristaps 200: enum mandocerr ec;
1.1 kristaps 201:
202: n = t = "<root>";
203: tt = "block";
204:
205: switch (type) {
206: case (MDOC_BODY):
207: tt = "multi-line";
208: break;
209: case (MDOC_HEAD):
210: tt = "line";
211: break;
212: default:
213: break;
214: }
215:
216: switch (p->type) {
217: case (MDOC_BLOCK):
218: n = mdoc_macronames[p->tok];
219: t = "block";
220: break;
221: case (MDOC_BODY):
222: n = mdoc_macronames[p->tok];
223: t = "multi-line";
224: break;
225: case (MDOC_HEAD):
226: n = mdoc_macronames[p->tok];
227: t = "line";
228: break;
229: default:
230: break;
231: }
232:
1.75 kristaps 233: ec = (MDOC_IGN_SCOPE & mdoc->pflags) ?
234: MANDOCERR_SCOPE : MANDOCERR_SYNTSCOPE;
1.68 kristaps 235:
1.75 kristaps 236: return(mdoc_vmsg(mdoc, ec, line, pos,
237: "%s scope breaks %s of %s",
238: tt, t, n));
1.1 kristaps 239: }
240:
241:
242: /*
243: * This is called at the end of parsing. It must traverse up the tree,
244: * closing out open [implicit] scopes. Obviously, open explicit scopes
245: * are errors.
246: */
247: int
1.32 kristaps 248: mdoc_macroend(struct mdoc *m)
1.1 kristaps 249: {
250: struct mdoc_node *n;
251:
252: /* Scan for open explicit scopes. */
253:
1.32 kristaps 254: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 255:
256: for ( ; n; n = n->parent) {
257: if (MDOC_BLOCK != n->type)
258: continue;
259: if ( ! (MDOC_EXPLICIT & mdoc_macros[n->tok].flags))
260: continue;
1.68 kristaps 261: mdoc_nmsg(m, n, MANDOCERR_SYNTSCOPE);
262: return(0);
1.1 kristaps 263: }
264:
1.32 kristaps 265: /* Rewind to the first. */
266:
267: return(rew_last(m, m->first));
1.1 kristaps 268: }
269:
1.32 kristaps 270:
271: /*
272: * Look up a macro from within a subsequent context.
273: */
1.53 kristaps 274: static enum mdoct
1.58 kristaps 275: lookup(enum mdoct from, const char *p)
1.28 kristaps 276: {
1.36 kristaps 277: /* FIXME: make -diag lists be un-PARSED. */
1.28 kristaps 278:
279: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
280: return(MDOC_MAX);
1.35 kristaps 281: return(lookup_raw(p));
1.28 kristaps 282: }
283:
284:
1.32 kristaps 285: /*
286: * Lookup a macro following the initial line macro.
287: */
1.53 kristaps 288: static enum mdoct
1.35 kristaps 289: lookup_raw(const char *p)
1.1 kristaps 290: {
1.58 kristaps 291: enum mdoct res;
1.1 kristaps 292:
1.34 kristaps 293: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.28 kristaps 294: return(MDOC_MAX);
295: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 296: return(res);
297: return(MDOC_MAX);
298: }
299:
300:
301: static int
1.32 kristaps 302: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 303: {
304:
305: assert(to);
306: mdoc->next = MDOC_NEXT_SIBLING;
307:
308: /* LINTED */
309: while (mdoc->last != to) {
310: if ( ! mdoc_valid_post(mdoc))
311: return(0);
312: if ( ! mdoc_action_post(mdoc))
313: return(0);
314: mdoc->last = mdoc->last->parent;
315: assert(mdoc->last);
316: }
317:
318: if ( ! mdoc_valid_post(mdoc))
319: return(0);
320: return(mdoc_action_post(mdoc));
321: }
322:
323:
1.32 kristaps 324: /*
325: * Return the opening macro of a closing one, e.g., `Ec' has `Eo' as its
326: * matching pair.
327: */
1.47 kristaps 328: static enum mdoct
329: rew_alt(enum mdoct tok)
1.1 kristaps 330: {
331: switch (tok) {
332: case (MDOC_Ac):
333: return(MDOC_Ao);
334: case (MDOC_Bc):
335: return(MDOC_Bo);
336: case (MDOC_Brc):
337: return(MDOC_Bro);
338: case (MDOC_Dc):
339: return(MDOC_Do);
340: case (MDOC_Ec):
341: return(MDOC_Eo);
342: case (MDOC_Ed):
343: return(MDOC_Bd);
344: case (MDOC_Ef):
345: return(MDOC_Bf);
346: case (MDOC_Ek):
347: return(MDOC_Bk);
348: case (MDOC_El):
349: return(MDOC_Bl);
350: case (MDOC_Fc):
351: return(MDOC_Fo);
352: case (MDOC_Oc):
353: return(MDOC_Oo);
354: case (MDOC_Pc):
355: return(MDOC_Po);
356: case (MDOC_Qc):
357: return(MDOC_Qo);
358: case (MDOC_Re):
359: return(MDOC_Rs);
360: case (MDOC_Sc):
361: return(MDOC_So);
362: case (MDOC_Xc):
363: return(MDOC_Xo);
364: default:
365: break;
366: }
367: abort();
368: /* NOTREACHED */
369: }
370:
371:
372: /*
373: * Rewind rules. This indicates whether to stop rewinding
374: * (REWIND_HALT) without touching our current scope, stop rewinding and
375: * close our current scope (REWIND_REWIND), or continue (REWIND_NOHALT).
376: * The scope-closing and so on occurs in the various rew_* routines.
377: */
1.51 kristaps 378: static enum rew
1.47 kristaps 379: rew_dohalt(enum mdoct tok, enum mdoc_type type,
380: const struct mdoc_node *p)
1.1 kristaps 381: {
382:
383: if (MDOC_ROOT == p->type)
384: return(REWIND_HALT);
385: if (MDOC_VALID & p->flags)
386: return(REWIND_NOHALT);
387:
388: switch (tok) {
389: case (MDOC_Aq):
390: /* FALLTHROUGH */
391: case (MDOC_Bq):
392: /* FALLTHROUGH */
393: case (MDOC_Brq):
394: /* FALLTHROUGH */
395: case (MDOC_D1):
396: /* FALLTHROUGH */
397: case (MDOC_Dl):
398: /* FALLTHROUGH */
399: case (MDOC_Dq):
400: /* FALLTHROUGH */
401: case (MDOC_Op):
402: /* FALLTHROUGH */
403: case (MDOC_Pq):
404: /* FALLTHROUGH */
405: case (MDOC_Ql):
406: /* FALLTHROUGH */
407: case (MDOC_Qq):
408: /* FALLTHROUGH */
409: case (MDOC_Sq):
1.41 kristaps 410: /* FALLTHROUGH */
411: case (MDOC_Vt):
1.1 kristaps 412: assert(MDOC_TAIL != type);
413: if (type == p->type && tok == p->tok)
414: return(REWIND_REWIND);
415: break;
416: case (MDOC_It):
417: assert(MDOC_TAIL != type);
418: if (type == p->type && tok == p->tok)
419: return(REWIND_REWIND);
420: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
421: return(REWIND_HALT);
422: break;
423: case (MDOC_Sh):
424: if (type == p->type && tok == p->tok)
425: return(REWIND_REWIND);
426: break;
1.19 kristaps 427: case (MDOC_Nd):
428: /* FALLTHROUGH */
1.1 kristaps 429: case (MDOC_Ss):
430: assert(MDOC_TAIL != type);
431: if (type == p->type && tok == p->tok)
432: return(REWIND_REWIND);
433: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
434: return(REWIND_HALT);
435: break;
436: case (MDOC_Ao):
437: /* FALLTHROUGH */
438: case (MDOC_Bd):
439: /* FALLTHROUGH */
440: case (MDOC_Bf):
441: /* FALLTHROUGH */
442: case (MDOC_Bk):
443: /* FALLTHROUGH */
444: case (MDOC_Bl):
445: /* FALLTHROUGH */
446: case (MDOC_Bo):
447: /* FALLTHROUGH */
448: case (MDOC_Bro):
449: /* FALLTHROUGH */
450: case (MDOC_Do):
451: /* FALLTHROUGH */
452: case (MDOC_Eo):
453: /* FALLTHROUGH */
454: case (MDOC_Fo):
455: /* FALLTHROUGH */
456: case (MDOC_Oo):
457: /* FALLTHROUGH */
458: case (MDOC_Po):
459: /* FALLTHROUGH */
460: case (MDOC_Qo):
461: /* FALLTHROUGH */
462: case (MDOC_Rs):
463: /* FALLTHROUGH */
464: case (MDOC_So):
465: /* FALLTHROUGH */
466: case (MDOC_Xo):
467: if (type == p->type && tok == p->tok)
468: return(REWIND_REWIND);
469: break;
470: /* Multi-line explicit scope close. */
471: case (MDOC_Ac):
472: /* FALLTHROUGH */
473: case (MDOC_Bc):
474: /* FALLTHROUGH */
475: case (MDOC_Brc):
476: /* FALLTHROUGH */
477: case (MDOC_Dc):
478: /* FALLTHROUGH */
479: case (MDOC_Ec):
480: /* FALLTHROUGH */
481: case (MDOC_Ed):
482: /* FALLTHROUGH */
483: case (MDOC_Ek):
484: /* FALLTHROUGH */
485: case (MDOC_El):
486: /* FALLTHROUGH */
487: case (MDOC_Fc):
488: /* FALLTHROUGH */
489: case (MDOC_Ef):
490: /* FALLTHROUGH */
491: case (MDOC_Oc):
492: /* FALLTHROUGH */
493: case (MDOC_Pc):
494: /* FALLTHROUGH */
495: case (MDOC_Qc):
496: /* FALLTHROUGH */
497: case (MDOC_Re):
498: /* FALLTHROUGH */
499: case (MDOC_Sc):
500: /* FALLTHROUGH */
501: case (MDOC_Xc):
502: if (type == p->type && rew_alt(tok) == p->tok)
503: return(REWIND_REWIND);
504: break;
505: default:
506: abort();
507: /* NOTREACHED */
508: }
509:
510: return(REWIND_NOHALT);
511: }
512:
513:
514: /*
515: * See if we can break an encountered scope (the rew_dohalt has returned
516: * REWIND_NOHALT).
517: */
518: static int
1.47 kristaps 519: rew_dobreak(enum mdoct tok, const struct mdoc_node *p)
1.1 kristaps 520: {
521:
522: assert(MDOC_ROOT != p->type);
523: if (MDOC_ELEM == p->type)
524: return(1);
525: if (MDOC_TEXT == p->type)
526: return(1);
527: if (MDOC_VALID & p->flags)
528: return(1);
529:
530: switch (tok) {
531: case (MDOC_It):
532: return(MDOC_It == p->tok);
1.19 kristaps 533: case (MDOC_Nd):
534: return(MDOC_Nd == p->tok);
1.1 kristaps 535: case (MDOC_Ss):
536: return(MDOC_Ss == p->tok);
537: case (MDOC_Sh):
1.19 kristaps 538: if (MDOC_Nd == p->tok)
539: return(1);
1.1 kristaps 540: if (MDOC_Ss == p->tok)
541: return(1);
542: return(MDOC_Sh == p->tok);
543: case (MDOC_El):
544: if (MDOC_It == p->tok)
545: return(1);
546: break;
547: case (MDOC_Oc):
548: if (MDOC_Op == p->tok)
549: return(1);
550: break;
551: default:
552: break;
553: }
554:
555: if (MDOC_EXPLICIT & mdoc_macros[tok].flags)
556: return(p->tok == rew_alt(tok));
557: else if (MDOC_BLOCK == p->type)
558: return(1);
559:
560: return(tok == p->tok);
561: }
562:
563:
564: static int
1.47 kristaps 565: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 566: {
567: struct mdoc_node *n;
568:
569: n = mdoc->last;
570: if (MDOC_ELEM != n->type)
571: n = n->parent;
572: assert(MDOC_ELEM == n->type);
573: assert(tok == n->tok);
574:
575: return(rew_last(mdoc, n));
576: }
577:
578:
579: static int
1.32 kristaps 580: rew_sub(enum mdoc_type t, struct mdoc *m,
1.47 kristaps 581: enum mdoct tok, int line, int ppos)
1.1 kristaps 582: {
583: struct mdoc_node *n;
1.51 kristaps 584: enum rew c;
1.1 kristaps 585:
586: /* LINTED */
1.32 kristaps 587: for (n = m->last; n; n = n->parent) {
588: c = rew_dohalt(tok, t, n);
589: if (REWIND_HALT == c) {
590: if (MDOC_BLOCK != t)
591: return(1);
592: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags))
593: return(1);
1.68 kristaps 594: /* FIXME: shouldn't raise an error */
595: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE);
596: return(0);
1.32 kristaps 597: }
1.1 kristaps 598: if (REWIND_REWIND == c)
599: break;
600: else if (rew_dobreak(tok, n))
601: continue;
1.32 kristaps 602: if ( ! swarn(m, t, line, ppos, n))
1.1 kristaps 603: return(0);
604: }
605:
606: assert(n);
1.47 kristaps 607: if ( ! rew_last(m, n))
608: return(0);
609:
610: /*
611: * The current block extends an enclosing block beyond a line
612: * break. Now that the current block ends, close the enclosing
613: * block, too.
614: */
615: if (NULL != (n = n->pending)) {
616: assert(MDOC_HEAD == n->type);
617: if ( ! rew_last(m, n))
618: return(0);
619: if ( ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
620: return(0);
621: }
622:
623: return(1);
1.1 kristaps 624: }
625:
626:
627: static int
1.66 kristaps 628: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 629: {
1.66 kristaps 630: int la;
1.55 kristaps 631: enum margserr ac;
1.1 kristaps 632: char *p;
633:
1.66 kristaps 634: if ('\0' == buf[*pos])
1.1 kristaps 635: return(1);
636:
637: for (;;) {
1.66 kristaps 638: la = *pos;
639: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 640:
1.53 kristaps 641: if (ARGS_ERROR == ac)
1.1 kristaps 642: return(0);
1.53 kristaps 643: else if (ARGS_EOLN == ac)
1.1 kristaps 644: break;
1.66 kristaps 645:
1.67 schwarze 646: assert(DELIM_NONE != mdoc_isdelim(p));
1.66 kristaps 647: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 648: return(0);
1.66 kristaps 649:
650: /*
651: * If we encounter end-of-sentence symbols, then trigger
652: * the double-space.
653: *
654: * XXX: it's easy to allow this to propogate outward to
655: * the last symbol, such that `. )' will cause the
656: * correct double-spacing. However, (1) groff isn't
657: * smart enough to do this and (2) it would require
658: * knowing which symbols break this behaviour, for
659: * example, `. ;' shouldn't propogate the double-space.
660: */
661: if (mandoc_eos(p, strlen(p)))
662: m->last->flags |= MDOC_EOS;
1.1 kristaps 663: }
664:
665: return(1);
666: }
667:
668:
669: /*
670: * Close out block partial/full explicit.
671: */
672: static int
673: blk_exp_close(MACRO_PROT_ARGS)
674: {
1.60 kristaps 675: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 676: enum margserr ac;
1.53 kristaps 677: enum mdoct ntok;
1.1 kristaps 678: char *p;
679:
1.60 kristaps 680: nl = MDOC_NEWLINE & m->flags;
681:
1.1 kristaps 682: switch (tok) {
683: case (MDOC_Ec):
684: maxargs = 1;
685: break;
686: default:
687: maxargs = 0;
688: break;
689: }
690:
691: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.68 kristaps 692: /* FIXME: do this in validate */
1.22 kristaps 693: if (buf[*pos])
1.68 kristaps 694: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 695: return(0);
1.22 kristaps 696:
1.32 kristaps 697: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 kristaps 698: return(0);
1.32 kristaps 699: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 700: }
701:
1.32 kristaps 702: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 703: return(0);
704:
1.32 kristaps 705: if (maxargs > 0)
706: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 707: return(0);
708:
1.27 kristaps 709: for (flushed = j = 0; ; j++) {
1.1 kristaps 710: lastarg = *pos;
711:
712: if (j == maxargs && ! flushed) {
1.32 kristaps 713: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 714: return(0);
715: flushed = 1;
716: }
717:
1.53 kristaps 718: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 719:
1.53 kristaps 720: if (ARGS_ERROR == ac)
1.1 kristaps 721: return(0);
1.53 kristaps 722: if (ARGS_PUNCT == ac)
1.1 kristaps 723: break;
1.53 kristaps 724: if (ARGS_EOLN == ac)
1.1 kristaps 725: break;
726:
1.54 kristaps 727: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
728:
729: if (MDOC_MAX == ntok) {
730: if ( ! mdoc_word_alloc(m, line, lastarg, p))
1.1 kristaps 731: return(0);
1.54 kristaps 732: continue;
733: }
1.1 kristaps 734:
1.54 kristaps 735: if ( ! flushed) {
736: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
737: return(0);
738: flushed = 1;
739: }
1.82 ! kristaps 740: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 741: return(0);
1.54 kristaps 742: break;
1.1 kristaps 743: }
744:
1.32 kristaps 745: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 746: return(0);
747:
1.60 kristaps 748: if ( ! nl)
1.1 kristaps 749: return(1);
1.32 kristaps 750: return(append_delims(m, line, pos, buf));
1.1 kristaps 751: }
752:
753:
754: static int
755: in_line(MACRO_PROT_ARGS)
756: {
1.70 kristaps 757: int la, scope, cnt, nc, nl;
1.56 kristaps 758: enum margverr av;
1.53 kristaps 759: enum mdoct ntok;
1.55 kristaps 760: enum margserr ac;
1.67 schwarze 761: enum mdelim d;
1.53 kristaps 762: struct mdoc_arg *arg;
763: char *p;
1.1 kristaps 764:
1.60 kristaps 765: nl = MDOC_NEWLINE & m->flags;
766:
1.4 kristaps 767: /*
768: * Whether we allow ignored elements (those without content,
769: * usually because of reserved words) to squeak by.
770: */
1.45 kristaps 771:
1.4 kristaps 772: switch (tok) {
1.26 kristaps 773: case (MDOC_An):
774: /* FALLTHROUGH */
775: case (MDOC_Ar):
1.4 kristaps 776: /* FALLTHROUGH */
777: case (MDOC_Fl):
778: /* FALLTHROUGH */
1.12 kristaps 779: case (MDOC_Lk):
780: /* FALLTHROUGH */
1.26 kristaps 781: case (MDOC_Nm):
782: /* FALLTHROUGH */
1.25 kristaps 783: case (MDOC_Pa):
1.4 kristaps 784: nc = 1;
785: break;
786: default:
787: nc = 0;
788: break;
789: }
790:
1.27 kristaps 791: for (arg = NULL;; ) {
1.1 kristaps 792: la = *pos;
1.56 kristaps 793: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 794:
1.56 kristaps 795: if (ARGV_WORD == av) {
1.1 kristaps 796: *pos = la;
797: break;
798: }
1.56 kristaps 799: if (ARGV_EOLN == av)
1.1 kristaps 800: break;
1.56 kristaps 801: if (ARGV_ARG == av)
1.1 kristaps 802: continue;
803:
804: mdoc_argv_free(arg);
805: return(0);
806: }
807:
1.70 kristaps 808: for (cnt = scope = 0;; ) {
1.1 kristaps 809: la = *pos;
1.53 kristaps 810: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 811:
1.53 kristaps 812: if (ARGS_ERROR == ac)
1.1 kristaps 813: return(0);
1.53 kristaps 814: if (ARGS_EOLN == ac)
1.1 kristaps 815: break;
1.53 kristaps 816: if (ARGS_PUNCT == ac)
1.1 kristaps 817: break;
818:
1.53 kristaps 819: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 820:
1.4 kristaps 821: /*
822: * In this case, we've located a submacro and must
823: * execute it. Close out scope, if open. If no
824: * elements have been generated, either create one (nc)
825: * or raise a warning.
826: */
1.1 kristaps 827:
1.53 kristaps 828: if (MDOC_MAX != ntok) {
1.70 kristaps 829: if (scope && ! rew_elem(m, tok))
1.1 kristaps 830: return(0);
1.4 kristaps 831: if (nc && 0 == cnt) {
1.32 kristaps 832: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 833: return(0);
1.32 kristaps 834: if ( ! rew_last(m, m->last))
1.12 kristaps 835: return(0);
1.7 kristaps 836: } else if ( ! nc && 0 == cnt) {
837: mdoc_argv_free(arg);
1.68 kristaps 838: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 839: return(0);
1.7 kristaps 840: }
1.82 ! kristaps 841: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 842: return(0);
1.60 kristaps 843: if ( ! nl)
1.1 kristaps 844: return(1);
1.32 kristaps 845: return(append_delims(m, line, pos, buf));
1.29 kristaps 846: }
1.1 kristaps 847:
1.4 kristaps 848: /*
849: * Non-quote-enclosed punctuation. Set up our scope, if
850: * a word; rewind the scope, if a delimiter; then append
851: * the word.
852: */
1.1 kristaps 853:
1.67 schwarze 854: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 855:
1.70 kristaps 856: if (DELIM_NONE != d) {
857: /*
858: * If we encounter closing punctuation, no word
859: * has been omitted, no scope is open, and we're
860: * allowed to have an empty element, then start
861: * a new scope. `Ar', `Fl', and `Li', only do
862: * this once per invocation. There may be more
863: * of these (all of them?).
864: */
865: if (0 == cnt && (nc || MDOC_Li == tok) &&
866: DELIM_CLOSE == d && ! scope) {
867: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
868: return(0);
869: if (MDOC_Ar == tok || MDOC_Li == tok ||
870: MDOC_Fl == tok)
871: cnt++;
872: scope = 1;
873: }
874: /*
875: * Close out our scope, if one is open, before
876: * any punctuation.
877: */
878: if (scope && ! rew_elem(m, tok))
1.1 kristaps 879: return(0);
1.70 kristaps 880: scope = 0;
881: } else if ( ! scope) {
1.32 kristaps 882: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 883: return(0);
1.70 kristaps 884: scope = 1;
1.1 kristaps 885: }
886:
1.67 schwarze 887: if (DELIM_NONE == d)
1.3 kristaps 888: cnt++;
1.32 kristaps 889: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 890: return(0);
1.39 kristaps 891:
892: /*
893: * `Fl' macros have their scope re-opened with each new
894: * word so that the `-' can be added to each one without
895: * having to parse out spaces.
896: */
1.70 kristaps 897: if (scope && MDOC_Fl == tok) {
1.39 kristaps 898: if ( ! rew_elem(m, tok))
899: return(0);
1.70 kristaps 900: scope = 0;
1.39 kristaps 901: }
1.1 kristaps 902: }
903:
1.70 kristaps 904: if (scope && ! rew_elem(m, tok))
1.1 kristaps 905: return(0);
1.4 kristaps 906:
907: /*
908: * If no elements have been collected and we're allowed to have
909: * empties (nc), open a scope and close it out. Otherwise,
910: * raise a warning.
911: */
1.45 kristaps 912:
1.4 kristaps 913: if (nc && 0 == cnt) {
1.32 kristaps 914: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 915: return(0);
1.32 kristaps 916: if ( ! rew_last(m, m->last))
1.12 kristaps 917: return(0);
1.7 kristaps 918: } else if ( ! nc && 0 == cnt) {
919: mdoc_argv_free(arg);
1.68 kristaps 920: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 921: return(0);
1.7 kristaps 922: }
1.4 kristaps 923:
1.60 kristaps 924: if ( ! nl)
1.1 kristaps 925: return(1);
1.32 kristaps 926: return(append_delims(m, line, pos, buf));
1.1 kristaps 927: }
928:
929:
930: static int
931: blk_full(MACRO_PROT_ARGS)
932: {
1.63 kristaps 933: int la, nl;
1.1 kristaps 934: struct mdoc_arg *arg;
1.45 kristaps 935: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 936: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 937: struct mdoc_node *n;
1.74 kristaps 938: enum mdoc_type mtt;
1.53 kristaps 939: enum mdoct ntok;
1.59 kristaps 940: enum margserr ac, lac;
1.56 kristaps 941: enum margverr av;
1.1 kristaps 942: char *p;
943:
1.63 kristaps 944: nl = MDOC_NEWLINE & m->flags;
945:
1.45 kristaps 946: /* Close out prior implicit scope. */
1.19 kristaps 947:
1.1 kristaps 948: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.32 kristaps 949: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 950: return(0);
1.32 kristaps 951: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 952: return(0);
953: }
954:
1.45 kristaps 955: /*
956: * This routine accomodates implicitly- and explicitly-scoped
957: * macro openings. Implicit ones first close out prior scope
958: * (seen above). Delay opening the head until necessary to
959: * allow leading punctuation to print. Special consideration
960: * for `It -column', which has phrase-part syntax instead of
961: * regular child nodes.
962: */
963:
1.1 kristaps 964: for (arg = NULL;; ) {
1.45 kristaps 965: la = *pos;
1.56 kristaps 966: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 967:
1.56 kristaps 968: if (ARGV_WORD == av) {
1.45 kristaps 969: *pos = la;
1.1 kristaps 970: break;
971: }
972:
1.56 kristaps 973: if (ARGV_EOLN == av)
1.1 kristaps 974: break;
1.56 kristaps 975: if (ARGV_ARG == av)
1.1 kristaps 976: continue;
977:
978: mdoc_argv_free(arg);
979: return(0);
980: }
981:
1.32 kristaps 982: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 983: return(0);
984:
1.49 kristaps 985: head = body = NULL;
1.1 kristaps 986:
1.45 kristaps 987: /*
988: * The `Nd' macro has all arguments in its body: it's a hybrid
989: * of block partial-explicit and full-implicit. Stupid.
990: */
1.19 kristaps 991:
1.45 kristaps 992: if (MDOC_Nd == tok) {
993: if ( ! mdoc_head_alloc(m, line, ppos, tok))
994: return(0);
995: head = m->last;
1.32 kristaps 996: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.19 kristaps 997: return(0);
1.32 kristaps 998: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.19 kristaps 999: return(0);
1.49 kristaps 1000: body = m->last;
1.19 kristaps 1001: }
1002:
1.59 kristaps 1003: ac = ARGS_ERROR;
1004:
1.62 kristaps 1005: for ( ; ; ) {
1.45 kristaps 1006: la = *pos;
1.75 kristaps 1007: /* Initialise last-phrase-type with ARGS_PEND. */
1008: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.53 kristaps 1009: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1010:
1.53 kristaps 1011: if (ARGS_ERROR == ac)
1.1 kristaps 1012: return(0);
1.75 kristaps 1013:
1014: if (ARGS_EOLN == ac) {
1015: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1016: break;
1017: /*
1018: * This is necessary: if the last token on a
1019: * line is a `Ta' or tab, then we'll get
1020: * ARGS_EOLN, so we must be smart enough to
1021: * reopen our scope if the last parse was a
1022: * phrase or partial phrase.
1023: */
1024: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1025: return(0);
1026: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1027: return(0);
1028: body = m->last;
1.1 kristaps 1029: break;
1.75 kristaps 1030: }
1.45 kristaps 1031:
1.73 kristaps 1032: /*
1033: * Emit leading punctuation (i.e., punctuation before
1034: * the MDOC_HEAD) for non-phrase types.
1035: */
1.45 kristaps 1036:
1.59 kristaps 1037: if (NULL == head &&
1.71 kristaps 1038: ARGS_PEND != ac &&
1.59 kristaps 1039: ARGS_PHRASE != ac &&
1.57 kristaps 1040: ARGS_PPHRASE != ac &&
1.53 kristaps 1041: ARGS_QWORD != ac &&
1.67 schwarze 1042: DELIM_OPEN == mdoc_isdelim(p)) {
1.45 kristaps 1043: if ( ! mdoc_word_alloc(m, line, la, p))
1044: return(0);
1045: continue;
1046: }
1047:
1.74 kristaps 1048: /* Open a head if one hasn't been opened. */
1.45 kristaps 1049:
1.74 kristaps 1050: if (NULL == head) {
1.45 kristaps 1051: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1052: return(0);
1053: head = m->last;
1054: }
1055:
1.72 kristaps 1056: if (ARGS_PHRASE == ac ||
1057: ARGS_PEND == ac ||
1058: ARGS_PPHRASE == ac) {
1.73 kristaps 1059: /*
1.74 kristaps 1060: * If we haven't opened a body yet, rewind the
1061: * head; if we have, rewind that instead.
1062: */
1063:
1064: mtt = body ? MDOC_BODY : MDOC_HEAD;
1065: if ( ! rew_sub(mtt, m, tok, line, ppos))
1066: return(0);
1067:
1068: /* Then allocate our body context. */
1069:
1070: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1071: return(0);
1072: body = m->last;
1073:
1074: /*
1.73 kristaps 1075: * Process phrases: set whether we're in a
1076: * partial-phrase (this effects line handling)
1077: * then call down into the phrase parser.
1078: */
1.74 kristaps 1079:
1.65 kristaps 1080: if (ARGS_PPHRASE == ac)
1081: m->flags |= MDOC_PPHRASE;
1.71 kristaps 1082: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1083: m->flags |= MDOC_PPHRASE;
1084:
1.82 ! kristaps 1085: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1086: return(0);
1.71 kristaps 1087:
1.65 kristaps 1088: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1089: continue;
1090: }
1091:
1.54 kristaps 1092: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1093:
1094: if (MDOC_MAX == ntok) {
1.53 kristaps 1095: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1096: return(0);
1.53 kristaps 1097: continue;
1.45 kristaps 1098: }
1.53 kristaps 1099:
1.82 ! kristaps 1100: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.45 kristaps 1101: return(0);
1.53 kristaps 1102: break;
1.45 kristaps 1103: }
1.1 kristaps 1104:
1.45 kristaps 1105: if (NULL == head) {
1106: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1107: return(0);
1.45 kristaps 1108: head = m->last;
1.1 kristaps 1109: }
1110:
1.63 kristaps 1111: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1112: return(0);
1.19 kristaps 1113:
1.49 kristaps 1114: /* If we've already opened our body, exit now. */
1.45 kristaps 1115:
1.49 kristaps 1116: if (NULL != body)
1.77 kristaps 1117: goto out;
1.19 kristaps 1118:
1.47 kristaps 1119: /*
1.49 kristaps 1120: * If there is an open (i.e., unvalidated) sub-block requiring
1121: * explicit close-out, postpone switching the current block from
1122: * head to body until the rew_sub() call closing out that
1123: * sub-block.
1.47 kristaps 1124: */
1125: for (n = m->last; n && n != head; n = n->parent) {
1.49 kristaps 1126: if (MDOC_BLOCK == n->type &&
1127: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1128: ! (MDOC_VALID & n->flags)) {
1129: assert( ! (MDOC_ACTED & n->flags));
1.47 kristaps 1130: n->pending = head;
1131: return(1);
1132: }
1133: }
1134:
1.45 kristaps 1135: /* Close out scopes to remain in a consistent state. */
1136:
1.32 kristaps 1137: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1138: return(0);
1.32 kristaps 1139: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1140: return(0);
1141:
1.77 kristaps 1142: out:
1143: if ( ! (MDOC_FREECOL & m->flags))
1144: return(1);
1145:
1146: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1147: return(0);
1148: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1149: return(0);
1150:
1151: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1152: return(1);
1153: }
1154:
1155:
1156: static int
1157: blk_part_imp(MACRO_PROT_ARGS)
1158: {
1.63 kristaps 1159: int la, nl;
1.53 kristaps 1160: enum mdoct ntok;
1.55 kristaps 1161: enum margserr ac;
1.1 kristaps 1162: char *p;
1.43 kristaps 1163: struct mdoc_node *blk; /* saved block context */
1164: struct mdoc_node *body; /* saved body context */
1165: struct mdoc_node *n;
1.1 kristaps 1166:
1.63 kristaps 1167: nl = MDOC_NEWLINE & m->flags;
1168:
1.43 kristaps 1169: /*
1170: * A macro that spans to the end of the line. This is generally
1171: * (but not necessarily) called as the first macro. The block
1172: * has a head as the immediate child, which is always empty,
1173: * followed by zero or more opening punctuation nodes, then the
1174: * body (which may be empty, depending on the macro), then zero
1175: * or more closing punctuation nodes.
1176: */
1.32 kristaps 1177:
1178: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1179: return(0);
1.43 kristaps 1180:
1.32 kristaps 1181: blk = m->last;
1.43 kristaps 1182:
1.32 kristaps 1183: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1184: return(0);
1.32 kristaps 1185: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1186: return(0);
1187:
1.43 kristaps 1188: /*
1189: * Open the body scope "on-demand", that is, after we've
1190: * processed all our the leading delimiters (open parenthesis,
1191: * etc.).
1192: */
1.1 kristaps 1193:
1.43 kristaps 1194: for (body = NULL; ; ) {
1.32 kristaps 1195: la = *pos;
1.53 kristaps 1196: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.43 kristaps 1197:
1.53 kristaps 1198: if (ARGS_ERROR == ac)
1.1 kristaps 1199: return(0);
1.53 kristaps 1200: if (ARGS_EOLN == ac)
1.43 kristaps 1201: break;
1.53 kristaps 1202: if (ARGS_PUNCT == ac)
1.1 kristaps 1203: break;
1204:
1.53 kristaps 1205: if (NULL == body && ARGS_QWORD != ac &&
1.67 schwarze 1206: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 kristaps 1207: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1208: return(0);
1209: continue;
1210: }
1211:
1.43 kristaps 1212: if (NULL == body) {
1213: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1214: return(0);
1215: body = m->last;
1216: }
1217:
1.54 kristaps 1218: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1219:
1220: if (MDOC_MAX == ntok) {
1.53 kristaps 1221: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1222: return(0);
1.53 kristaps 1223: continue;
1224: }
1.43 kristaps 1225:
1.82 ! kristaps 1226: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1227: return(0);
1.53 kristaps 1228: break;
1.1 kristaps 1229: }
1230:
1.43 kristaps 1231: /* Clean-ups to leave in a consistent state. */
1232:
1.44 kristaps 1233: if (NULL == body) {
1234: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1235: return(0);
1236: body = m->last;
1.64 kristaps 1237: }
1238:
1239: for (n = body->child; n && n->next; n = n->next)
1240: /* Do nothing. */ ;
1241:
1242: /*
1243: * End of sentence spacing: if the last node is a text node and
1244: * has a trailing period, then mark it as being end-of-sentence.
1245: */
1246:
1247: if (n && MDOC_TEXT == n->type && n->string)
1248: if (mandoc_eos(n->string, strlen(n->string)))
1249: n->flags |= MDOC_EOS;
1250:
1251: /* Up-propogate the end-of-space flag. */
1252:
1253: if (n && (MDOC_EOS & n->flags)) {
1254: body->flags |= MDOC_EOS;
1255: body->parent->flags |= MDOC_EOS;
1.44 kristaps 1256: }
1.43 kristaps 1257:
1.32 kristaps 1258: /*
1259: * If we can't rewind to our body, then our scope has already
1260: * been closed by another macro (like `Oc' closing `Op'). This
1261: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1262: * crufty use of `Op' breakage.
1.63 kristaps 1263: *
1264: * FIXME - this should be ifdef'd OpenBSD?
1.1 kristaps 1265: */
1.32 kristaps 1266: for (n = m->last; n; n = n->parent)
1.1 kristaps 1267: if (body == n)
1268: break;
1.43 kristaps 1269:
1.68 kristaps 1270: if (NULL == n && ! mdoc_nmsg(m, body, MANDOCERR_SCOPE))
1.32 kristaps 1271: return(0);
1.43 kristaps 1272:
1.32 kristaps 1273: if (n && ! rew_last(m, body))
1274: return(0);
1.1 kristaps 1275:
1.32 kristaps 1276: /* Standard appending of delimiters. */
1.1 kristaps 1277:
1.63 kristaps 1278: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1279: return(0);
1280:
1.32 kristaps 1281: /* Rewind scope, if applicable. */
1.1 kristaps 1282:
1.32 kristaps 1283: if (n && ! rew_last(m, blk))
1.1 kristaps 1284: return(0);
1285:
1286: return(1);
1287: }
1288:
1289:
1290: static int
1291: blk_part_exp(MACRO_PROT_ARGS)
1292: {
1.60 kristaps 1293: int la, nl;
1.55 kristaps 1294: enum margserr ac;
1.43 kristaps 1295: struct mdoc_node *head; /* keep track of head */
1296: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1297: char *p;
1.53 kristaps 1298: enum mdoct ntok;
1.1 kristaps 1299:
1.60 kristaps 1300: nl = MDOC_NEWLINE & m->flags;
1301:
1.43 kristaps 1302: /*
1303: * The opening of an explicit macro having zero or more leading
1304: * punctuation nodes; a head with optional single element (the
1305: * case of `Eo'); and a body that may be empty.
1306: */
1.32 kristaps 1307:
1308: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1309: return(0);
1.32 kristaps 1310:
1.43 kristaps 1311: for (head = body = NULL; ; ) {
1.32 kristaps 1312: la = *pos;
1.53 kristaps 1313: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1314:
1.53 kristaps 1315: if (ARGS_ERROR == ac)
1.1 kristaps 1316: return(0);
1.53 kristaps 1317: if (ARGS_PUNCT == ac)
1.1 kristaps 1318: break;
1.53 kristaps 1319: if (ARGS_EOLN == ac)
1.1 kristaps 1320: break;
1.43 kristaps 1321:
1322: /* Flush out leading punctuation. */
1323:
1.53 kristaps 1324: if (NULL == head && ARGS_QWORD != ac &&
1.67 schwarze 1325: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1326: assert(NULL == body);
1327: if ( ! mdoc_word_alloc(m, line, la, p))
1328: return(0);
1329: continue;
1330: }
1331:
1332: if (NULL == head) {
1333: assert(NULL == body);
1334: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1335: return(0);
1.43 kristaps 1336: head = m->last;
1.1 kristaps 1337: }
1338:
1.43 kristaps 1339: /*
1340: * `Eo' gobbles any data into the head, but most other
1341: * macros just immediately close out and begin the body.
1342: */
1343:
1344: if (NULL == body) {
1345: assert(head);
1346: /* No check whether it's a macro! */
1347: if (MDOC_Eo == tok)
1348: if ( ! mdoc_word_alloc(m, line, la, p))
1349: return(0);
1350:
1.32 kristaps 1351: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1352: return(0);
1.32 kristaps 1353: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1354: return(0);
1.43 kristaps 1355: body = m->last;
1356:
1357: if (MDOC_Eo == tok)
1358: continue;
1.1 kristaps 1359: }
1.43 kristaps 1360:
1361: assert(NULL != head && NULL != body);
1362:
1.54 kristaps 1363: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1364:
1365: if (MDOC_MAX == ntok) {
1.53 kristaps 1366: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1367: return(0);
1.53 kristaps 1368: continue;
1.43 kristaps 1369: }
1370:
1.82 ! kristaps 1371: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1372: return(0);
1.53 kristaps 1373: break;
1.1 kristaps 1374: }
1375:
1.43 kristaps 1376: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1377:
1.43 kristaps 1378: if (NULL == head) {
1379: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1380: return(0);
1381: head = m->last;
1382: }
1383:
1384: if (NULL == body) {
1.32 kristaps 1385: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1386: return(0);
1.32 kristaps 1387: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1388: return(0);
1.43 kristaps 1389: body = m->last;
1.1 kristaps 1390: }
1391:
1.32 kristaps 1392: /* Standard appending of delimiters. */
1393:
1.60 kristaps 1394: if ( ! nl)
1.1 kristaps 1395: return(1);
1.32 kristaps 1396: return(append_delims(m, line, pos, buf));
1.1 kristaps 1397: }
1398:
1399:
1.61 kristaps 1400: /* ARGSUSED */
1.1 kristaps 1401: static int
1402: in_line_argn(MACRO_PROT_ARGS)
1403: {
1.60 kristaps 1404: int la, flushed, j, maxargs, nl;
1.55 kristaps 1405: enum margserr ac;
1.56 kristaps 1406: enum margverr av;
1.53 kristaps 1407: struct mdoc_arg *arg;
1408: char *p;
1409: enum mdoct ntok;
1.1 kristaps 1410:
1.60 kristaps 1411: nl = MDOC_NEWLINE & m->flags;
1412:
1.46 kristaps 1413: /*
1414: * A line macro that has a fixed number of arguments (maxargs).
1415: * Only open the scope once the first non-leading-punctuation is
1416: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1417: * keep it open until the maximum number of arguments are
1418: * exhausted.
1419: */
1.1 kristaps 1420:
1421: switch (tok) {
1422: case (MDOC_Ap):
1423: /* FALLTHROUGH */
1424: case (MDOC_No):
1425: /* FALLTHROUGH */
1426: case (MDOC_Ns):
1427: /* FALLTHROUGH */
1428: case (MDOC_Ux):
1429: maxargs = 0;
1430: break;
1.42 kristaps 1431: case (MDOC_Xr):
1432: maxargs = 2;
1433: break;
1.1 kristaps 1434: default:
1435: maxargs = 1;
1436: break;
1437: }
1438:
1.46 kristaps 1439: for (arg = NULL; ; ) {
1.32 kristaps 1440: la = *pos;
1.56 kristaps 1441: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1442:
1.56 kristaps 1443: if (ARGV_WORD == av) {
1.32 kristaps 1444: *pos = la;
1.1 kristaps 1445: break;
1446: }
1447:
1.56 kristaps 1448: if (ARGV_EOLN == av)
1.1 kristaps 1449: break;
1.56 kristaps 1450: if (ARGV_ARG == av)
1.1 kristaps 1451: continue;
1452:
1453: mdoc_argv_free(arg);
1454: return(0);
1455: }
1456:
1.46 kristaps 1457: for (flushed = j = 0; ; ) {
1.32 kristaps 1458: la = *pos;
1.53 kristaps 1459: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1460:
1.53 kristaps 1461: if (ARGS_ERROR == ac)
1.1 kristaps 1462: return(0);
1.53 kristaps 1463: if (ARGS_PUNCT == ac)
1.1 kristaps 1464: break;
1.53 kristaps 1465: if (ARGS_EOLN == ac)
1.1 kristaps 1466: break;
1467:
1.46 kristaps 1468: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1469: ARGS_QWORD != ac &&
1.67 schwarze 1470: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.46 kristaps 1471: if ( ! mdoc_word_alloc(m, line, la, p))
1472: return(0);
1473: continue;
1474: } else if (0 == j)
1475: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1476: return(0);
1477:
1478: if (j == maxargs && ! flushed) {
1479: if ( ! rew_elem(m, tok))
1480: return(0);
1481: flushed = 1;
1482: }
1483:
1.54 kristaps 1484: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1485:
1486: if (MDOC_MAX != ntok) {
1.32 kristaps 1487: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1488: return(0);
1489: flushed = 1;
1.82 ! kristaps 1490: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1491: return(0);
1.46 kristaps 1492: j++;
1.1 kristaps 1493: break;
1494: }
1495:
1496: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1497: ARGS_QWORD != ac &&
1.67 schwarze 1498: ! flushed &&
1499: DELIM_NONE != mdoc_isdelim(p)) {
1.32 kristaps 1500: if ( ! rew_elem(m, tok))
1.1 kristaps 1501: return(0);
1502: flushed = 1;
1503: }
1.42 kristaps 1504:
1505: /*
1506: * XXX: this is a hack to work around groff's ugliness
1507: * as regards `Xr' and extraneous arguments. It should
1508: * ideally be deprecated behaviour, but because this is
1509: * code is no here, it's unlikely to be removed.
1510: */
1.43 kristaps 1511:
1.46 kristaps 1512: #ifdef __OpenBSD__
1.42 kristaps 1513: if (MDOC_Xr == tok && j == maxargs) {
1.46 kristaps 1514: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.42 kristaps 1515: return(0);
1516: if ( ! rew_elem(m, MDOC_Ns))
1517: return(0);
1518: }
1.46 kristaps 1519: #endif
1.42 kristaps 1520:
1.32 kristaps 1521: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1522: return(0);
1.46 kristaps 1523: j++;
1.1 kristaps 1524: }
1525:
1.46 kristaps 1526: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1527: return(0);
1528:
1529: /* Close out in a consistent state. */
1.32 kristaps 1530:
1531: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1532: return(0);
1.60 kristaps 1533: if ( ! nl)
1.1 kristaps 1534: return(1);
1.32 kristaps 1535: return(append_delims(m, line, pos, buf));
1.1 kristaps 1536: }
1537:
1538:
1539: static int
1540: in_line_eoln(MACRO_PROT_ARGS)
1541: {
1.56 kristaps 1542: int la;
1.55 kristaps 1543: enum margserr ac;
1.56 kristaps 1544: enum margverr av;
1.53 kristaps 1545: struct mdoc_arg *arg;
1546: char *p;
1547: enum mdoct ntok;
1.1 kristaps 1548:
1549: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1550:
1.32 kristaps 1551: /* Parse macro arguments. */
1.1 kristaps 1552:
1.32 kristaps 1553: for (arg = NULL; ; ) {
1.1 kristaps 1554: la = *pos;
1.56 kristaps 1555: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1556:
1.56 kristaps 1557: if (ARGV_WORD == av) {
1.1 kristaps 1558: *pos = la;
1559: break;
1560: }
1.56 kristaps 1561: if (ARGV_EOLN == av)
1.1 kristaps 1562: break;
1.56 kristaps 1563: if (ARGV_ARG == av)
1.1 kristaps 1564: continue;
1565:
1566: mdoc_argv_free(arg);
1567: return(0);
1568: }
1569:
1.32 kristaps 1570: /* Open element scope. */
1571:
1572: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1573: return(0);
1574:
1.32 kristaps 1575: /* Parse argument terms. */
1.1 kristaps 1576:
1577: for (;;) {
1578: la = *pos;
1.53 kristaps 1579: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1580:
1.53 kristaps 1581: if (ARGS_ERROR == ac)
1.1 kristaps 1582: return(0);
1.53 kristaps 1583: if (ARGS_EOLN == ac)
1.1 kristaps 1584: break;
1585:
1.53 kristaps 1586: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1587:
1.53 kristaps 1588: if (MDOC_MAX == ntok) {
1589: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1590: return(0);
1.53 kristaps 1591: continue;
1592: }
1.1 kristaps 1593:
1.53 kristaps 1594: if ( ! rew_elem(m, tok))
1.1 kristaps 1595: return(0);
1.82 ! kristaps 1596: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1597: }
1598:
1.32 kristaps 1599: /* Close out (no delimiters). */
1600:
1601: return(rew_elem(m, tok));
1.1 kristaps 1602: }
1603:
1604:
1605: /* ARGSUSED */
1606: static int
1.41 kristaps 1607: ctx_synopsis(MACRO_PROT_ARGS)
1608: {
1.60 kristaps 1609: int nl;
1610:
1611: nl = MDOC_NEWLINE & m->flags;
1.41 kristaps 1612:
1613: /* If we're not in the SYNOPSIS, go straight to in-line. */
1614: if (SEC_SYNOPSIS != m->lastsec)
1.82 ! kristaps 1615: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1616:
1617: /* If we're a nested call, same place. */
1.60 kristaps 1618: if ( ! nl)
1.82 ! kristaps 1619: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1620:
1621: /*
1622: * XXX: this will open a block scope; however, if later we end
1623: * up formatting the block scope, then child nodes will inherit
1624: * the formatting. Be careful.
1625: */
1626:
1.82 ! kristaps 1627: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.41 kristaps 1628: }
1629:
1630:
1631: /* ARGSUSED */
1632: static int
1.1 kristaps 1633: obsolete(MACRO_PROT_ARGS)
1634: {
1635:
1.68 kristaps 1636: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1637: }
1638:
1639:
1.24 kristaps 1640: /*
1641: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1642: * They're unusual because they're basically free-form text until a
1643: * macro is encountered.
1644: */
1.1 kristaps 1645: static int
1.82 ! kristaps 1646: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1647: {
1.53 kristaps 1648: int la, pos;
1.75 kristaps 1649: enum margserr ac;
1.53 kristaps 1650: enum mdoct ntok;
1651: char *p;
1.1 kristaps 1652:
1.24 kristaps 1653: for (pos = ppos; ; ) {
1654: la = pos;
1.1 kristaps 1655:
1.75 kristaps 1656: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1657:
1.75 kristaps 1658: if (ARGS_ERROR == ac)
1.24 kristaps 1659: return(0);
1.75 kristaps 1660: if (ARGS_EOLN == ac)
1.24 kristaps 1661: break;
1.1 kristaps 1662:
1.75 kristaps 1663: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1664:
1.53 kristaps 1665: if (MDOC_MAX == ntok) {
1666: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1667: return(0);
1.53 kristaps 1668: continue;
1669: }
1.1 kristaps 1670:
1.82 ! kristaps 1671: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1672: return(0);
1.53 kristaps 1673: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1674: }
1675:
1676: return(1);
1677: }
1.24 kristaps 1678:
1679:
1.79 kristaps 1680: /* ARGSUSED */
1.75 kristaps 1681: static int
1682: phrase_ta(MACRO_PROT_ARGS)
1683: {
1684: int la;
1685: enum mdoct ntok;
1686: enum margserr ac;
1687: char *p;
1688:
1689: /*
1690: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1691: * it should simply error out with ARGSLOST.
1692: */
1693:
1694: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1695: return(0);
1696: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1697: return(0);
1698:
1699: for (;;) {
1700: la = *pos;
1701: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1702:
1703: if (ARGS_ERROR == ac)
1704: return(0);
1705: if (ARGS_EOLN == ac)
1706: break;
1707:
1708: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1709:
1710: if (MDOC_MAX == ntok) {
1711: if ( ! mdoc_word_alloc(m, line, la, p))
1712: return(0);
1713: continue;
1714: }
1715:
1.82 ! kristaps 1716: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.75 kristaps 1717: return(0);
1718: return(append_delims(m, line, pos, buf));
1719: }
1720:
1721: return(1);
1722: }
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