Annotation of mandoc/mdoc_macro.c, Revision 1.77
1.77 ! kristaps 1: /* $Id: mdoc_macro.c,v 1.76 2010/05/31 11:52:06 kristaps Exp $ */
1.1 kristaps 2: /*
1.9 kristaps 3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.8 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 *);
1.75 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: #ifdef UGLY
611: /*
612: * The current block extends an enclosing block beyond a line
613: * break. Now that the current block ends, close the enclosing
614: * block, too.
615: */
616: if (NULL != (n = n->pending)) {
617: assert(MDOC_HEAD == n->type);
618: if ( ! rew_last(m, n))
619: return(0);
620: if ( ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
621: return(0);
622: }
623: #endif
624:
625: return(1);
1.1 kristaps 626: }
627:
628:
629: static int
1.66 kristaps 630: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 631: {
1.66 kristaps 632: int la;
1.55 kristaps 633: enum margserr ac;
1.1 kristaps 634: char *p;
635:
1.66 kristaps 636: if ('\0' == buf[*pos])
1.1 kristaps 637: return(1);
638:
639: for (;;) {
1.66 kristaps 640: la = *pos;
641: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 642:
1.53 kristaps 643: if (ARGS_ERROR == ac)
1.1 kristaps 644: return(0);
1.53 kristaps 645: else if (ARGS_EOLN == ac)
1.1 kristaps 646: break;
1.66 kristaps 647:
1.67 schwarze 648: assert(DELIM_NONE != mdoc_isdelim(p));
1.66 kristaps 649: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 650: return(0);
1.66 kristaps 651:
652: /*
653: * If we encounter end-of-sentence symbols, then trigger
654: * the double-space.
655: *
656: * XXX: it's easy to allow this to propogate outward to
657: * the last symbol, such that `. )' will cause the
658: * correct double-spacing. However, (1) groff isn't
659: * smart enough to do this and (2) it would require
660: * knowing which symbols break this behaviour, for
661: * example, `. ;' shouldn't propogate the double-space.
662: */
663: if (mandoc_eos(p, strlen(p)))
664: m->last->flags |= MDOC_EOS;
1.1 kristaps 665: }
666:
667: return(1);
668: }
669:
670:
671: /*
672: * Close out block partial/full explicit.
673: */
674: static int
675: blk_exp_close(MACRO_PROT_ARGS)
676: {
1.60 kristaps 677: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 678: enum margserr ac;
1.53 kristaps 679: enum mdoct ntok;
1.1 kristaps 680: char *p;
681:
1.60 kristaps 682: nl = MDOC_NEWLINE & m->flags;
683:
1.1 kristaps 684: switch (tok) {
685: case (MDOC_Ec):
686: maxargs = 1;
687: break;
688: default:
689: maxargs = 0;
690: break;
691: }
692:
693: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.68 kristaps 694: /* FIXME: do this in validate */
1.22 kristaps 695: if (buf[*pos])
1.68 kristaps 696: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 697: return(0);
1.22 kristaps 698:
1.32 kristaps 699: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 kristaps 700: return(0);
1.32 kristaps 701: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 702: }
703:
1.32 kristaps 704: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 705: return(0);
706:
1.32 kristaps 707: if (maxargs > 0)
708: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 709: return(0);
710:
1.27 kristaps 711: for (flushed = j = 0; ; j++) {
1.1 kristaps 712: lastarg = *pos;
713:
714: if (j == maxargs && ! flushed) {
1.32 kristaps 715: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 716: return(0);
717: flushed = 1;
718: }
719:
1.53 kristaps 720: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 721:
1.53 kristaps 722: if (ARGS_ERROR == ac)
1.1 kristaps 723: return(0);
1.53 kristaps 724: if (ARGS_PUNCT == ac)
1.1 kristaps 725: break;
1.53 kristaps 726: if (ARGS_EOLN == ac)
1.1 kristaps 727: break;
728:
1.54 kristaps 729: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
730:
731: if (MDOC_MAX == ntok) {
732: if ( ! mdoc_word_alloc(m, line, lastarg, p))
1.1 kristaps 733: return(0);
1.54 kristaps 734: continue;
735: }
1.1 kristaps 736:
1.54 kristaps 737: if ( ! flushed) {
738: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
739: return(0);
740: flushed = 1;
741: }
742: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 743: return(0);
1.54 kristaps 744: break;
1.1 kristaps 745: }
746:
1.32 kristaps 747: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 748: return(0);
749:
1.60 kristaps 750: if ( ! nl)
1.1 kristaps 751: return(1);
1.32 kristaps 752: return(append_delims(m, line, pos, buf));
1.1 kristaps 753: }
754:
755:
756: static int
757: in_line(MACRO_PROT_ARGS)
758: {
1.70 kristaps 759: int la, scope, cnt, nc, nl;
1.56 kristaps 760: enum margverr av;
1.53 kristaps 761: enum mdoct ntok;
1.55 kristaps 762: enum margserr ac;
1.67 schwarze 763: enum mdelim d;
1.53 kristaps 764: struct mdoc_arg *arg;
765: char *p;
1.1 kristaps 766:
1.60 kristaps 767: nl = MDOC_NEWLINE & m->flags;
768:
1.4 kristaps 769: /*
770: * Whether we allow ignored elements (those without content,
771: * usually because of reserved words) to squeak by.
772: */
1.45 kristaps 773:
1.4 kristaps 774: switch (tok) {
1.26 kristaps 775: case (MDOC_An):
776: /* FALLTHROUGH */
777: case (MDOC_Ar):
1.4 kristaps 778: /* FALLTHROUGH */
779: case (MDOC_Fl):
780: /* FALLTHROUGH */
1.12 kristaps 781: case (MDOC_Lk):
782: /* FALLTHROUGH */
1.26 kristaps 783: case (MDOC_Nm):
784: /* FALLTHROUGH */
1.25 kristaps 785: case (MDOC_Pa):
1.4 kristaps 786: nc = 1;
787: break;
788: default:
789: nc = 0;
790: break;
791: }
792:
1.27 kristaps 793: for (arg = NULL;; ) {
1.1 kristaps 794: la = *pos;
1.56 kristaps 795: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 796:
1.56 kristaps 797: if (ARGV_WORD == av) {
1.1 kristaps 798: *pos = la;
799: break;
800: }
1.56 kristaps 801: if (ARGV_EOLN == av)
1.1 kristaps 802: break;
1.56 kristaps 803: if (ARGV_ARG == av)
1.1 kristaps 804: continue;
805:
806: mdoc_argv_free(arg);
807: return(0);
808: }
809:
1.70 kristaps 810: for (cnt = scope = 0;; ) {
1.1 kristaps 811: la = *pos;
1.53 kristaps 812: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 813:
1.53 kristaps 814: if (ARGS_ERROR == ac)
1.1 kristaps 815: return(0);
1.53 kristaps 816: if (ARGS_EOLN == ac)
1.1 kristaps 817: break;
1.53 kristaps 818: if (ARGS_PUNCT == ac)
1.1 kristaps 819: break;
820:
1.53 kristaps 821: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 822:
1.4 kristaps 823: /*
824: * In this case, we've located a submacro and must
825: * execute it. Close out scope, if open. If no
826: * elements have been generated, either create one (nc)
827: * or raise a warning.
828: */
1.1 kristaps 829:
1.53 kristaps 830: if (MDOC_MAX != ntok) {
1.70 kristaps 831: if (scope && ! rew_elem(m, tok))
1.1 kristaps 832: return(0);
1.4 kristaps 833: if (nc && 0 == cnt) {
1.32 kristaps 834: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 835: return(0);
1.32 kristaps 836: if ( ! rew_last(m, m->last))
1.12 kristaps 837: return(0);
1.7 kristaps 838: } else if ( ! nc && 0 == cnt) {
839: mdoc_argv_free(arg);
1.68 kristaps 840: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 841: return(0);
1.7 kristaps 842: }
1.53 kristaps 843: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 844: return(0);
1.60 kristaps 845: if ( ! nl)
1.1 kristaps 846: return(1);
1.32 kristaps 847: return(append_delims(m, line, pos, buf));
1.29 kristaps 848: }
1.1 kristaps 849:
1.4 kristaps 850: /*
851: * Non-quote-enclosed punctuation. Set up our scope, if
852: * a word; rewind the scope, if a delimiter; then append
853: * the word.
854: */
1.1 kristaps 855:
1.67 schwarze 856: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 857:
1.70 kristaps 858: if (DELIM_NONE != d) {
859: /*
860: * If we encounter closing punctuation, no word
861: * has been omitted, no scope is open, and we're
862: * allowed to have an empty element, then start
863: * a new scope. `Ar', `Fl', and `Li', only do
864: * this once per invocation. There may be more
865: * of these (all of them?).
866: */
867: if (0 == cnt && (nc || MDOC_Li == tok) &&
868: DELIM_CLOSE == d && ! scope) {
869: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
870: return(0);
871: if (MDOC_Ar == tok || MDOC_Li == tok ||
872: MDOC_Fl == tok)
873: cnt++;
874: scope = 1;
875: }
876: /*
877: * Close out our scope, if one is open, before
878: * any punctuation.
879: */
880: if (scope && ! rew_elem(m, tok))
1.1 kristaps 881: return(0);
1.70 kristaps 882: scope = 0;
883: } else if ( ! scope) {
1.32 kristaps 884: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 885: return(0);
1.70 kristaps 886: scope = 1;
1.1 kristaps 887: }
888:
1.67 schwarze 889: if (DELIM_NONE == d)
1.3 kristaps 890: cnt++;
1.32 kristaps 891: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 892: return(0);
1.39 kristaps 893:
894: /*
895: * `Fl' macros have their scope re-opened with each new
896: * word so that the `-' can be added to each one without
897: * having to parse out spaces.
898: */
1.70 kristaps 899: if (scope && MDOC_Fl == tok) {
1.39 kristaps 900: if ( ! rew_elem(m, tok))
901: return(0);
1.70 kristaps 902: scope = 0;
1.39 kristaps 903: }
1.1 kristaps 904: }
905:
1.70 kristaps 906: if (scope && ! rew_elem(m, tok))
1.1 kristaps 907: return(0);
1.4 kristaps 908:
909: /*
910: * If no elements have been collected and we're allowed to have
911: * empties (nc), open a scope and close it out. Otherwise,
912: * raise a warning.
913: */
1.45 kristaps 914:
1.4 kristaps 915: if (nc && 0 == cnt) {
1.32 kristaps 916: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 917: return(0);
1.32 kristaps 918: if ( ! rew_last(m, m->last))
1.12 kristaps 919: return(0);
1.7 kristaps 920: } else if ( ! nc && 0 == cnt) {
921: mdoc_argv_free(arg);
1.68 kristaps 922: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 923: return(0);
1.7 kristaps 924: }
1.4 kristaps 925:
1.60 kristaps 926: if ( ! nl)
1.1 kristaps 927: return(1);
1.32 kristaps 928: return(append_delims(m, line, pos, buf));
1.1 kristaps 929: }
930:
931:
932: static int
933: blk_full(MACRO_PROT_ARGS)
934: {
1.63 kristaps 935: int la, nl;
1.1 kristaps 936: struct mdoc_arg *arg;
1.45 kristaps 937: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 938: struct mdoc_node *body; /* save of body macro */
1.48 kristaps 939: #ifdef UGLY
1.47 kristaps 940: struct mdoc_node *n;
1.48 kristaps 941: #endif
1.74 kristaps 942: enum mdoc_type mtt;
1.53 kristaps 943: enum mdoct ntok;
1.59 kristaps 944: enum margserr ac, lac;
1.56 kristaps 945: enum margverr av;
1.1 kristaps 946: char *p;
947:
1.63 kristaps 948: nl = MDOC_NEWLINE & m->flags;
949:
1.45 kristaps 950: /* Close out prior implicit scope. */
1.19 kristaps 951:
1.1 kristaps 952: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.32 kristaps 953: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 954: return(0);
1.32 kristaps 955: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 956: return(0);
957: }
958:
1.45 kristaps 959: /*
960: * This routine accomodates implicitly- and explicitly-scoped
961: * macro openings. Implicit ones first close out prior scope
962: * (seen above). Delay opening the head until necessary to
963: * allow leading punctuation to print. Special consideration
964: * for `It -column', which has phrase-part syntax instead of
965: * regular child nodes.
966: */
967:
1.1 kristaps 968: for (arg = NULL;; ) {
1.45 kristaps 969: la = *pos;
1.56 kristaps 970: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 971:
1.56 kristaps 972: if (ARGV_WORD == av) {
1.45 kristaps 973: *pos = la;
1.1 kristaps 974: break;
975: }
976:
1.56 kristaps 977: if (ARGV_EOLN == av)
1.1 kristaps 978: break;
1.56 kristaps 979: if (ARGV_ARG == av)
1.1 kristaps 980: continue;
981:
982: mdoc_argv_free(arg);
983: return(0);
984: }
985:
1.32 kristaps 986: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 987: return(0);
988:
1.49 kristaps 989: head = body = NULL;
1.1 kristaps 990:
1.45 kristaps 991: /*
992: * The `Nd' macro has all arguments in its body: it's a hybrid
993: * of block partial-explicit and full-implicit. Stupid.
994: */
1.19 kristaps 995:
1.45 kristaps 996: if (MDOC_Nd == tok) {
997: if ( ! mdoc_head_alloc(m, line, ppos, tok))
998: return(0);
999: head = m->last;
1.32 kristaps 1000: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.19 kristaps 1001: return(0);
1.32 kristaps 1002: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.19 kristaps 1003: return(0);
1.49 kristaps 1004: body = m->last;
1.19 kristaps 1005: }
1006:
1.59 kristaps 1007: ac = ARGS_ERROR;
1008:
1.62 kristaps 1009: for ( ; ; ) {
1.45 kristaps 1010: la = *pos;
1.75 kristaps 1011: /* Initialise last-phrase-type with ARGS_PEND. */
1012: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.53 kristaps 1013: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1014:
1.53 kristaps 1015: if (ARGS_ERROR == ac)
1.1 kristaps 1016: return(0);
1.75 kristaps 1017:
1018: if (ARGS_EOLN == ac) {
1019: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1020: break;
1021: /*
1022: * This is necessary: if the last token on a
1023: * line is a `Ta' or tab, then we'll get
1024: * ARGS_EOLN, so we must be smart enough to
1025: * reopen our scope if the last parse was a
1026: * phrase or partial phrase.
1027: */
1028: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1029: return(0);
1030: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1031: return(0);
1032: body = m->last;
1.1 kristaps 1033: break;
1.75 kristaps 1034: }
1.45 kristaps 1035:
1.73 kristaps 1036: /*
1037: * Emit leading punctuation (i.e., punctuation before
1038: * the MDOC_HEAD) for non-phrase types.
1039: */
1.45 kristaps 1040:
1.59 kristaps 1041: if (NULL == head &&
1.71 kristaps 1042: ARGS_PEND != ac &&
1.59 kristaps 1043: ARGS_PHRASE != ac &&
1.57 kristaps 1044: ARGS_PPHRASE != ac &&
1.53 kristaps 1045: ARGS_QWORD != ac &&
1.67 schwarze 1046: DELIM_OPEN == mdoc_isdelim(p)) {
1.45 kristaps 1047: if ( ! mdoc_word_alloc(m, line, la, p))
1048: return(0);
1049: continue;
1050: }
1051:
1.74 kristaps 1052: /* Open a head if one hasn't been opened. */
1.45 kristaps 1053:
1.74 kristaps 1054: if (NULL == head) {
1.45 kristaps 1055: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1056: return(0);
1057: head = m->last;
1058: }
1059:
1.72 kristaps 1060: if (ARGS_PHRASE == ac ||
1061: ARGS_PEND == ac ||
1062: ARGS_PPHRASE == ac) {
1.73 kristaps 1063: /*
1.74 kristaps 1064: * If we haven't opened a body yet, rewind the
1065: * head; if we have, rewind that instead.
1066: */
1067:
1068: mtt = body ? MDOC_BODY : MDOC_HEAD;
1069: if ( ! rew_sub(mtt, m, tok, line, ppos))
1070: return(0);
1071:
1072: /* Then allocate our body context. */
1073:
1074: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1075: return(0);
1076: body = m->last;
1077:
1078: /*
1.73 kristaps 1079: * Process phrases: set whether we're in a
1080: * partial-phrase (this effects line handling)
1081: * then call down into the phrase parser.
1082: */
1.74 kristaps 1083:
1.65 kristaps 1084: if (ARGS_PPHRASE == ac)
1085: m->flags |= MDOC_PPHRASE;
1.71 kristaps 1086: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1087: m->flags |= MDOC_PPHRASE;
1088:
1.75 kristaps 1089: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1090: return(0);
1.71 kristaps 1091:
1.65 kristaps 1092: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1093: continue;
1094: }
1095:
1.54 kristaps 1096: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1097:
1098: if (MDOC_MAX == ntok) {
1.53 kristaps 1099: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1100: return(0);
1.53 kristaps 1101: continue;
1.45 kristaps 1102: }
1.53 kristaps 1103:
1104: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.45 kristaps 1105: return(0);
1.53 kristaps 1106: break;
1.45 kristaps 1107: }
1.1 kristaps 1108:
1.45 kristaps 1109: if (NULL == head) {
1110: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1111: return(0);
1.45 kristaps 1112: head = m->last;
1.1 kristaps 1113: }
1114:
1.63 kristaps 1115: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1116: return(0);
1.19 kristaps 1117:
1.49 kristaps 1118: /* If we've already opened our body, exit now. */
1.45 kristaps 1119:
1.49 kristaps 1120: if (NULL != body)
1.77 ! kristaps 1121: goto out;
1.19 kristaps 1122:
1.47 kristaps 1123: #ifdef UGLY
1124: /*
1.49 kristaps 1125: * If there is an open (i.e., unvalidated) sub-block requiring
1126: * explicit close-out, postpone switching the current block from
1127: * head to body until the rew_sub() call closing out that
1128: * sub-block.
1.47 kristaps 1129: */
1130: for (n = m->last; n && n != head; n = n->parent) {
1.49 kristaps 1131: if (MDOC_BLOCK == n->type &&
1132: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1133: ! (MDOC_VALID & n->flags)) {
1134: assert( ! (MDOC_ACTED & n->flags));
1.47 kristaps 1135: n->pending = head;
1136: return(1);
1137: }
1138: }
1139: #endif
1140:
1.45 kristaps 1141: /* Close out scopes to remain in a consistent state. */
1142:
1.32 kristaps 1143: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1144: return(0);
1.32 kristaps 1145: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1146: return(0);
1147:
1.77 ! kristaps 1148: out:
! 1149: if ( ! (MDOC_FREECOL & m->flags))
! 1150: return(1);
! 1151:
! 1152: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
! 1153: return(0);
! 1154: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
! 1155: return(0);
! 1156:
! 1157: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1158: return(1);
1159: }
1160:
1161:
1162: static int
1163: blk_part_imp(MACRO_PROT_ARGS)
1164: {
1.63 kristaps 1165: int la, nl;
1.53 kristaps 1166: enum mdoct ntok;
1.55 kristaps 1167: enum margserr ac;
1.1 kristaps 1168: char *p;
1.43 kristaps 1169: struct mdoc_node *blk; /* saved block context */
1170: struct mdoc_node *body; /* saved body context */
1171: struct mdoc_node *n;
1.1 kristaps 1172:
1.63 kristaps 1173: nl = MDOC_NEWLINE & m->flags;
1174:
1.43 kristaps 1175: /*
1176: * A macro that spans to the end of the line. This is generally
1177: * (but not necessarily) called as the first macro. The block
1178: * has a head as the immediate child, which is always empty,
1179: * followed by zero or more opening punctuation nodes, then the
1180: * body (which may be empty, depending on the macro), then zero
1181: * or more closing punctuation nodes.
1182: */
1.32 kristaps 1183:
1184: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1185: return(0);
1.43 kristaps 1186:
1.32 kristaps 1187: blk = m->last;
1.43 kristaps 1188:
1.32 kristaps 1189: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1190: return(0);
1.32 kristaps 1191: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1192: return(0);
1193:
1.43 kristaps 1194: /*
1195: * Open the body scope "on-demand", that is, after we've
1196: * processed all our the leading delimiters (open parenthesis,
1197: * etc.).
1198: */
1.1 kristaps 1199:
1.43 kristaps 1200: for (body = NULL; ; ) {
1.32 kristaps 1201: la = *pos;
1.53 kristaps 1202: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.43 kristaps 1203:
1.53 kristaps 1204: if (ARGS_ERROR == ac)
1.1 kristaps 1205: return(0);
1.53 kristaps 1206: if (ARGS_EOLN == ac)
1.43 kristaps 1207: break;
1.53 kristaps 1208: if (ARGS_PUNCT == ac)
1.1 kristaps 1209: break;
1210:
1.53 kristaps 1211: if (NULL == body && ARGS_QWORD != ac &&
1.67 schwarze 1212: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 kristaps 1213: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1214: return(0);
1215: continue;
1216: }
1217:
1.43 kristaps 1218: if (NULL == body) {
1219: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1220: return(0);
1221: body = m->last;
1222: }
1223:
1.54 kristaps 1224: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1225:
1226: if (MDOC_MAX == ntok) {
1.53 kristaps 1227: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1228: return(0);
1.53 kristaps 1229: continue;
1230: }
1.43 kristaps 1231:
1.53 kristaps 1232: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1233: return(0);
1.53 kristaps 1234: break;
1.1 kristaps 1235: }
1236:
1.43 kristaps 1237: /* Clean-ups to leave in a consistent state. */
1238:
1.44 kristaps 1239: if (NULL == body) {
1240: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1241: return(0);
1242: body = m->last;
1.64 kristaps 1243: }
1244:
1245: for (n = body->child; n && n->next; n = n->next)
1246: /* Do nothing. */ ;
1247:
1248: /*
1249: * End of sentence spacing: if the last node is a text node and
1250: * has a trailing period, then mark it as being end-of-sentence.
1251: */
1252:
1253: if (n && MDOC_TEXT == n->type && n->string)
1254: if (mandoc_eos(n->string, strlen(n->string)))
1255: n->flags |= MDOC_EOS;
1256:
1257: /* Up-propogate the end-of-space flag. */
1258:
1259: if (n && (MDOC_EOS & n->flags)) {
1260: body->flags |= MDOC_EOS;
1261: body->parent->flags |= MDOC_EOS;
1.44 kristaps 1262: }
1.43 kristaps 1263:
1.32 kristaps 1264: /*
1265: * If we can't rewind to our body, then our scope has already
1266: * been closed by another macro (like `Oc' closing `Op'). This
1267: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1268: * crufty use of `Op' breakage.
1.63 kristaps 1269: *
1270: * FIXME - this should be ifdef'd OpenBSD?
1.1 kristaps 1271: */
1.32 kristaps 1272: for (n = m->last; n; n = n->parent)
1.1 kristaps 1273: if (body == n)
1274: break;
1.43 kristaps 1275:
1.68 kristaps 1276: if (NULL == n && ! mdoc_nmsg(m, body, MANDOCERR_SCOPE))
1.32 kristaps 1277: return(0);
1.43 kristaps 1278:
1.32 kristaps 1279: if (n && ! rew_last(m, body))
1280: return(0);
1.1 kristaps 1281:
1.32 kristaps 1282: /* Standard appending of delimiters. */
1.1 kristaps 1283:
1.63 kristaps 1284: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1285: return(0);
1286:
1.32 kristaps 1287: /* Rewind scope, if applicable. */
1.1 kristaps 1288:
1.32 kristaps 1289: if (n && ! rew_last(m, blk))
1.1 kristaps 1290: return(0);
1291:
1292: return(1);
1293: }
1294:
1295:
1296: static int
1297: blk_part_exp(MACRO_PROT_ARGS)
1298: {
1.60 kristaps 1299: int la, nl;
1.55 kristaps 1300: enum margserr ac;
1.43 kristaps 1301: struct mdoc_node *head; /* keep track of head */
1302: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1303: char *p;
1.53 kristaps 1304: enum mdoct ntok;
1.1 kristaps 1305:
1.60 kristaps 1306: nl = MDOC_NEWLINE & m->flags;
1307:
1.43 kristaps 1308: /*
1309: * The opening of an explicit macro having zero or more leading
1310: * punctuation nodes; a head with optional single element (the
1311: * case of `Eo'); and a body that may be empty.
1312: */
1.32 kristaps 1313:
1314: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1315: return(0);
1.32 kristaps 1316:
1.43 kristaps 1317: for (head = body = NULL; ; ) {
1.32 kristaps 1318: la = *pos;
1.53 kristaps 1319: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1320:
1.53 kristaps 1321: if (ARGS_ERROR == ac)
1.1 kristaps 1322: return(0);
1.53 kristaps 1323: if (ARGS_PUNCT == ac)
1.1 kristaps 1324: break;
1.53 kristaps 1325: if (ARGS_EOLN == ac)
1.1 kristaps 1326: break;
1.43 kristaps 1327:
1328: /* Flush out leading punctuation. */
1329:
1.53 kristaps 1330: if (NULL == head && ARGS_QWORD != ac &&
1.67 schwarze 1331: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1332: assert(NULL == body);
1333: if ( ! mdoc_word_alloc(m, line, la, p))
1334: return(0);
1335: continue;
1336: }
1337:
1338: if (NULL == head) {
1339: assert(NULL == body);
1340: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1341: return(0);
1.43 kristaps 1342: head = m->last;
1.1 kristaps 1343: }
1344:
1.43 kristaps 1345: /*
1346: * `Eo' gobbles any data into the head, but most other
1347: * macros just immediately close out and begin the body.
1348: */
1349:
1350: if (NULL == body) {
1351: assert(head);
1352: /* No check whether it's a macro! */
1353: if (MDOC_Eo == tok)
1354: if ( ! mdoc_word_alloc(m, line, la, p))
1355: return(0);
1356:
1.32 kristaps 1357: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1358: return(0);
1.32 kristaps 1359: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1360: return(0);
1.43 kristaps 1361: body = m->last;
1362:
1363: if (MDOC_Eo == tok)
1364: continue;
1.1 kristaps 1365: }
1.43 kristaps 1366:
1367: assert(NULL != head && NULL != body);
1368:
1.54 kristaps 1369: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1370:
1371: if (MDOC_MAX == ntok) {
1.53 kristaps 1372: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1373: return(0);
1.53 kristaps 1374: continue;
1.43 kristaps 1375: }
1376:
1.53 kristaps 1377: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1378: return(0);
1.53 kristaps 1379: break;
1.1 kristaps 1380: }
1381:
1.43 kristaps 1382: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1383:
1.43 kristaps 1384: if (NULL == head) {
1385: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1386: return(0);
1387: head = m->last;
1388: }
1389:
1390: if (NULL == body) {
1.32 kristaps 1391: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1392: return(0);
1.32 kristaps 1393: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1394: return(0);
1.43 kristaps 1395: body = m->last;
1.1 kristaps 1396: }
1397:
1.32 kristaps 1398: /* Standard appending of delimiters. */
1399:
1.60 kristaps 1400: if ( ! nl)
1.1 kristaps 1401: return(1);
1.32 kristaps 1402: return(append_delims(m, line, pos, buf));
1.1 kristaps 1403: }
1404:
1405:
1.61 kristaps 1406: /* ARGSUSED */
1.1 kristaps 1407: static int
1408: in_line_argn(MACRO_PROT_ARGS)
1409: {
1.60 kristaps 1410: int la, flushed, j, maxargs, nl;
1.55 kristaps 1411: enum margserr ac;
1.56 kristaps 1412: enum margverr av;
1.53 kristaps 1413: struct mdoc_arg *arg;
1414: char *p;
1415: enum mdoct ntok;
1.1 kristaps 1416:
1.60 kristaps 1417: nl = MDOC_NEWLINE & m->flags;
1418:
1.46 kristaps 1419: /*
1420: * A line macro that has a fixed number of arguments (maxargs).
1421: * Only open the scope once the first non-leading-punctuation is
1422: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1423: * keep it open until the maximum number of arguments are
1424: * exhausted.
1425: */
1.1 kristaps 1426:
1427: switch (tok) {
1428: case (MDOC_Ap):
1429: /* FALLTHROUGH */
1430: case (MDOC_No):
1431: /* FALLTHROUGH */
1432: case (MDOC_Ns):
1433: /* FALLTHROUGH */
1434: case (MDOC_Ux):
1435: maxargs = 0;
1436: break;
1.42 kristaps 1437: case (MDOC_Xr):
1438: maxargs = 2;
1439: break;
1.1 kristaps 1440: default:
1441: maxargs = 1;
1442: break;
1443: }
1444:
1.46 kristaps 1445: for (arg = NULL; ; ) {
1.32 kristaps 1446: la = *pos;
1.56 kristaps 1447: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1448:
1.56 kristaps 1449: if (ARGV_WORD == av) {
1.32 kristaps 1450: *pos = la;
1.1 kristaps 1451: break;
1452: }
1453:
1.56 kristaps 1454: if (ARGV_EOLN == av)
1.1 kristaps 1455: break;
1.56 kristaps 1456: if (ARGV_ARG == av)
1.1 kristaps 1457: continue;
1458:
1459: mdoc_argv_free(arg);
1460: return(0);
1461: }
1462:
1.46 kristaps 1463: for (flushed = j = 0; ; ) {
1.32 kristaps 1464: la = *pos;
1.53 kristaps 1465: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1466:
1.53 kristaps 1467: if (ARGS_ERROR == ac)
1.1 kristaps 1468: return(0);
1.53 kristaps 1469: if (ARGS_PUNCT == ac)
1.1 kristaps 1470: break;
1.53 kristaps 1471: if (ARGS_EOLN == ac)
1.1 kristaps 1472: break;
1473:
1.46 kristaps 1474: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1475: ARGS_QWORD != ac &&
1.67 schwarze 1476: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.46 kristaps 1477: if ( ! mdoc_word_alloc(m, line, la, p))
1478: return(0);
1479: continue;
1480: } else if (0 == j)
1481: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1482: return(0);
1483:
1484: if (j == maxargs && ! flushed) {
1485: if ( ! rew_elem(m, tok))
1486: return(0);
1487: flushed = 1;
1488: }
1489:
1.54 kristaps 1490: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1491:
1492: if (MDOC_MAX != ntok) {
1.32 kristaps 1493: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1494: return(0);
1495: flushed = 1;
1.53 kristaps 1496: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1497: return(0);
1.46 kristaps 1498: j++;
1.1 kristaps 1499: break;
1500: }
1501:
1502: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1503: ARGS_QWORD != ac &&
1.67 schwarze 1504: ! flushed &&
1505: DELIM_NONE != mdoc_isdelim(p)) {
1.32 kristaps 1506: if ( ! rew_elem(m, tok))
1.1 kristaps 1507: return(0);
1508: flushed = 1;
1509: }
1.42 kristaps 1510:
1511: /*
1512: * XXX: this is a hack to work around groff's ugliness
1513: * as regards `Xr' and extraneous arguments. It should
1514: * ideally be deprecated behaviour, but because this is
1515: * code is no here, it's unlikely to be removed.
1516: */
1.43 kristaps 1517:
1.46 kristaps 1518: #ifdef __OpenBSD__
1.42 kristaps 1519: if (MDOC_Xr == tok && j == maxargs) {
1.46 kristaps 1520: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.42 kristaps 1521: return(0);
1522: if ( ! rew_elem(m, MDOC_Ns))
1523: return(0);
1524: }
1.46 kristaps 1525: #endif
1.42 kristaps 1526:
1.32 kristaps 1527: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1528: return(0);
1.46 kristaps 1529: j++;
1.1 kristaps 1530: }
1531:
1.46 kristaps 1532: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1533: return(0);
1534:
1535: /* Close out in a consistent state. */
1.32 kristaps 1536:
1537: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1538: return(0);
1.60 kristaps 1539: if ( ! nl)
1.1 kristaps 1540: return(1);
1.32 kristaps 1541: return(append_delims(m, line, pos, buf));
1.1 kristaps 1542: }
1543:
1544:
1545: static int
1546: in_line_eoln(MACRO_PROT_ARGS)
1547: {
1.56 kristaps 1548: int la;
1.55 kristaps 1549: enum margserr ac;
1.56 kristaps 1550: enum margverr av;
1.53 kristaps 1551: struct mdoc_arg *arg;
1552: char *p;
1553: enum mdoct ntok;
1.1 kristaps 1554:
1555: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1556:
1.32 kristaps 1557: /* Parse macro arguments. */
1.1 kristaps 1558:
1.32 kristaps 1559: for (arg = NULL; ; ) {
1.1 kristaps 1560: la = *pos;
1.56 kristaps 1561: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1562:
1.56 kristaps 1563: if (ARGV_WORD == av) {
1.1 kristaps 1564: *pos = la;
1565: break;
1566: }
1.56 kristaps 1567: if (ARGV_EOLN == av)
1.1 kristaps 1568: break;
1.56 kristaps 1569: if (ARGV_ARG == av)
1.1 kristaps 1570: continue;
1571:
1572: mdoc_argv_free(arg);
1573: return(0);
1574: }
1575:
1.32 kristaps 1576: /* Open element scope. */
1577:
1578: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1579: return(0);
1580:
1.32 kristaps 1581: /* Parse argument terms. */
1.1 kristaps 1582:
1583: for (;;) {
1584: la = *pos;
1.53 kristaps 1585: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1586:
1.53 kristaps 1587: if (ARGS_ERROR == ac)
1.1 kristaps 1588: return(0);
1.53 kristaps 1589: if (ARGS_EOLN == ac)
1.1 kristaps 1590: break;
1591:
1.53 kristaps 1592: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1593:
1.53 kristaps 1594: if (MDOC_MAX == ntok) {
1595: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1596: return(0);
1.53 kristaps 1597: continue;
1598: }
1.1 kristaps 1599:
1.53 kristaps 1600: if ( ! rew_elem(m, tok))
1.1 kristaps 1601: return(0);
1.53 kristaps 1602: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1603: }
1604:
1.32 kristaps 1605: /* Close out (no delimiters). */
1606:
1607: return(rew_elem(m, tok));
1.1 kristaps 1608: }
1609:
1610:
1611: /* ARGSUSED */
1612: static int
1.41 kristaps 1613: ctx_synopsis(MACRO_PROT_ARGS)
1614: {
1.60 kristaps 1615: int nl;
1616:
1617: nl = MDOC_NEWLINE & m->flags;
1.41 kristaps 1618:
1619: /* If we're not in the SYNOPSIS, go straight to in-line. */
1620: if (SEC_SYNOPSIS != m->lastsec)
1621: return(in_line(m, tok, line, ppos, pos, buf));
1622:
1623: /* If we're a nested call, same place. */
1.60 kristaps 1624: if ( ! nl)
1.41 kristaps 1625: return(in_line(m, tok, line, ppos, pos, buf));
1626:
1627: /*
1628: * XXX: this will open a block scope; however, if later we end
1629: * up formatting the block scope, then child nodes will inherit
1630: * the formatting. Be careful.
1631: */
1632:
1633: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1634: }
1635:
1636:
1637: /* ARGSUSED */
1638: static int
1.1 kristaps 1639: obsolete(MACRO_PROT_ARGS)
1640: {
1641:
1.68 kristaps 1642: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1643: }
1644:
1645:
1.24 kristaps 1646: /*
1647: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1648: * They're unusual because they're basically free-form text until a
1649: * macro is encountered.
1650: */
1.1 kristaps 1651: static int
1.75 kristaps 1652: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1653: {
1.53 kristaps 1654: int la, pos;
1.75 kristaps 1655: enum margserr ac;
1.53 kristaps 1656: enum mdoct ntok;
1657: char *p;
1.1 kristaps 1658:
1.24 kristaps 1659: for (pos = ppos; ; ) {
1660: la = pos;
1.1 kristaps 1661:
1.75 kristaps 1662: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1663:
1.75 kristaps 1664: if (ARGS_ERROR == ac)
1.24 kristaps 1665: return(0);
1.75 kristaps 1666: if (ARGS_EOLN == ac)
1.24 kristaps 1667: break;
1.1 kristaps 1668:
1.75 kristaps 1669: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1670:
1.53 kristaps 1671: if (MDOC_MAX == ntok) {
1672: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1673: return(0);
1.53 kristaps 1674: continue;
1675: }
1.1 kristaps 1676:
1.53 kristaps 1677: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1678: return(0);
1.53 kristaps 1679: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1680: }
1681:
1682: return(1);
1683: }
1.24 kristaps 1684:
1685:
1.75 kristaps 1686: static int
1687: phrase_ta(MACRO_PROT_ARGS)
1688: {
1689: int la;
1690: enum mdoct ntok;
1691: enum margserr ac;
1692: struct mdoc_node *n;
1693: char *p;
1694:
1695: /*
1696: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1697: * it should simply error out with ARGSLOST.
1698: */
1699:
1700: n = m->last;
1701: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1702: return(0);
1703:
1704: /*
1705: * FIXME: this is necessary in bogus constructions like
1706: * .Bl -column foo bar
1707: * .Sy foo Ta bar
1708: * It is, however, an ugly way to do it.
1709: *
1710: * XXX; remove this when the above construct builds an implied
1711: * `It' marker.
1712: */
1713: if (NULL == m->last ||
1714: MDOC_BODY != m->last->type ||
1.76 kristaps 1715: MDOC_It != m->last->tok ||
1716: NULL == m->last->parent->parent ||
1717: MDOC_Bl != m->last->parent->parent->tok ||
1718: LIST_column != m->last->parent->parent->data.list) {
1.75 kristaps 1719: swarn(m, tok, line, ppos, n);
1720: return(0);
1721: }
1722:
1723: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1724: return(0);
1725:
1726: for (;;) {
1727: la = *pos;
1728: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1729:
1730: if (ARGS_ERROR == ac)
1731: return(0);
1732: if (ARGS_EOLN == ac)
1733: break;
1734:
1735: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1736:
1737: if (MDOC_MAX == ntok) {
1738: if ( ! mdoc_word_alloc(m, line, la, p))
1739: return(0);
1740: continue;
1741: }
1742:
1743: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1744: return(0);
1745: return(append_delims(m, line, pos, buf));
1746: }
1747:
1748: return(1);
1749: }
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