Annotation of mandoc/mdoc_macro.c, Revision 1.83
1.83 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.82 2010/06/27 15:52:41 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 *);
1.83 ! schwarze 53: static int make_pending(struct mdoc_node *, enum mdoc_type,
! 54: struct mdoc *, int, int);
1.82 kristaps 55: static int phrase(struct mdoc *, int, int, char *);
1.53 kristaps 56: static enum mdoct rew_alt(enum mdoct);
57: static int rew_dobreak(enum mdoct,
58: const struct mdoc_node *);
59: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
60: const struct mdoc_node *);
61: static int rew_elem(struct mdoc *, enum mdoct);
62: static int rew_last(struct mdoc *,
63: const struct mdoc_node *);
64: static int rew_sub(enum mdoc_type, struct mdoc *,
65: enum mdoct, int, int);
1.1 kristaps 66:
67: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.13 kristaps 68: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
1.1 kristaps 69: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
70: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
71: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
72: { blk_full, 0 }, /* Sh */
73: { blk_full, 0 }, /* Ss */
1.21 kristaps 74: { in_line_eoln, 0 }, /* Pp */
1.1 kristaps 75: { blk_part_imp, MDOC_PARSED }, /* D1 */
76: { blk_part_imp, MDOC_PARSED }, /* Dl */
77: { blk_full, MDOC_EXPLICIT }, /* Bd */
78: { blk_exp_close, MDOC_EXPLICIT }, /* Ed */
79: { blk_full, MDOC_EXPLICIT }, /* Bl */
80: { blk_exp_close, MDOC_EXPLICIT }, /* El */
81: { blk_full, MDOC_PARSED }, /* It */
82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.10 kristaps 83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.23 kristaps 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
1.1 kristaps 86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
90: { in_line_eoln, 0 }, /* Ex */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
92: { in_line_eoln, 0 }, /* Fd */
93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
1.11 kristaps 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.18 kristaps 97: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.19 kristaps 99: { blk_full, 0 }, /* Nd */
1.1 kristaps 100: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
101: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
102: { obsolete, 0 }, /* Ot */
103: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
104: { in_line_eoln, 0 }, /* Rv */
105: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
106: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.41 kristaps 107: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 108: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.1 kristaps 109: { in_line_eoln, 0 }, /* %A */
110: { in_line_eoln, 0 }, /* %B */
111: { in_line_eoln, 0 }, /* %D */
112: { in_line_eoln, 0 }, /* %I */
113: { in_line_eoln, 0 }, /* %J */
114: { in_line_eoln, 0 }, /* %N */
115: { in_line_eoln, 0 }, /* %O */
116: { in_line_eoln, 0 }, /* %P */
117: { in_line_eoln, 0 }, /* %R */
118: { in_line_eoln, 0 }, /* %T */
119: { in_line_eoln, 0 }, /* %V */
120: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
121: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
122: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
123: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
124: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
125: { blk_full, MDOC_EXPLICIT }, /* Bf */
126: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
127: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
128: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
129: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
130: { in_line_eoln, 0 }, /* Db */
131: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
132: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
133: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
134: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
135: { blk_exp_close, MDOC_EXPLICIT }, /* Ef */
136: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
137: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 139: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.1 kristaps 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* No */
141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ns */
142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
144: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.52 kristaps 145: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.1 kristaps 146: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
147: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
148: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
149: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
150: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
151: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
152: { blk_exp_close, MDOC_EXPLICIT }, /* Re */
153: { blk_full, MDOC_EXPLICIT }, /* Rs */
154: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
155: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
156: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
157: { in_line_eoln, 0 }, /* Sm */
158: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
159: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
160: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
161: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
162: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
163: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
164: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
165: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
166: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
167: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
168: { blk_full, MDOC_EXPLICIT }, /* Bk */
169: { blk_exp_close, MDOC_EXPLICIT }, /* Ek */
170: { in_line_eoln, 0 }, /* Bt */
171: { in_line_eoln, 0 }, /* Hf */
172: { obsolete, 0 }, /* Fr */
173: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 174: { in_line, 0 }, /* Lb */
1.21 kristaps 175: { in_line_eoln, 0 }, /* Lp */
1.12 kristaps 176: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
177: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
1.1 kristaps 178: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
179: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
180: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
181: { in_line_eoln, 0 }, /* %C */
182: { obsolete, 0 }, /* Es */
183: { obsolete, 0 }, /* En */
184: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
185: { in_line_eoln, 0 }, /* %Q */
1.20 kristaps 186: { in_line_eoln, 0 }, /* br */
187: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 188: { in_line_eoln, 0 }, /* %U */
1.75 kristaps 189: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
1.1 kristaps 190: };
191:
192: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
193:
194:
195: /*
196: * This is called at the end of parsing. It must traverse up the tree,
197: * closing out open [implicit] scopes. Obviously, open explicit scopes
198: * are errors.
199: */
200: int
1.32 kristaps 201: mdoc_macroend(struct mdoc *m)
1.1 kristaps 202: {
203: struct mdoc_node *n;
204:
205: /* Scan for open explicit scopes. */
206:
1.32 kristaps 207: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 208:
209: for ( ; n; n = n->parent) {
210: if (MDOC_BLOCK != n->type)
211: continue;
212: if ( ! (MDOC_EXPLICIT & mdoc_macros[n->tok].flags))
213: continue;
1.68 kristaps 214: mdoc_nmsg(m, n, MANDOCERR_SYNTSCOPE);
215: return(0);
1.1 kristaps 216: }
217:
1.32 kristaps 218: /* Rewind to the first. */
219:
220: return(rew_last(m, m->first));
1.1 kristaps 221: }
222:
1.32 kristaps 223:
224: /*
225: * Look up a macro from within a subsequent context.
226: */
1.53 kristaps 227: static enum mdoct
1.58 kristaps 228: lookup(enum mdoct from, const char *p)
1.28 kristaps 229: {
1.36 kristaps 230: /* FIXME: make -diag lists be un-PARSED. */
1.28 kristaps 231:
232: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
233: return(MDOC_MAX);
1.35 kristaps 234: return(lookup_raw(p));
1.28 kristaps 235: }
236:
237:
1.32 kristaps 238: /*
239: * Lookup a macro following the initial line macro.
240: */
1.53 kristaps 241: static enum mdoct
1.35 kristaps 242: lookup_raw(const char *p)
1.1 kristaps 243: {
1.58 kristaps 244: enum mdoct res;
1.1 kristaps 245:
1.34 kristaps 246: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.28 kristaps 247: return(MDOC_MAX);
248: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 249: return(res);
250: return(MDOC_MAX);
251: }
252:
253:
254: static int
1.32 kristaps 255: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 256: {
257:
258: assert(to);
259: mdoc->next = MDOC_NEXT_SIBLING;
260:
261: /* LINTED */
262: while (mdoc->last != to) {
263: if ( ! mdoc_valid_post(mdoc))
264: return(0);
265: if ( ! mdoc_action_post(mdoc))
266: return(0);
267: mdoc->last = mdoc->last->parent;
268: assert(mdoc->last);
269: }
270:
271: if ( ! mdoc_valid_post(mdoc))
272: return(0);
273: return(mdoc_action_post(mdoc));
274: }
275:
276:
1.32 kristaps 277: /*
278: * Return the opening macro of a closing one, e.g., `Ec' has `Eo' as its
279: * matching pair.
280: */
1.47 kristaps 281: static enum mdoct
282: rew_alt(enum mdoct tok)
1.1 kristaps 283: {
284: switch (tok) {
285: case (MDOC_Ac):
286: return(MDOC_Ao);
287: case (MDOC_Bc):
288: return(MDOC_Bo);
289: case (MDOC_Brc):
290: return(MDOC_Bro);
291: case (MDOC_Dc):
292: return(MDOC_Do);
293: case (MDOC_Ec):
294: return(MDOC_Eo);
295: case (MDOC_Ed):
296: return(MDOC_Bd);
297: case (MDOC_Ef):
298: return(MDOC_Bf);
299: case (MDOC_Ek):
300: return(MDOC_Bk);
301: case (MDOC_El):
302: return(MDOC_Bl);
303: case (MDOC_Fc):
304: return(MDOC_Fo);
305: case (MDOC_Oc):
306: return(MDOC_Oo);
307: case (MDOC_Pc):
308: return(MDOC_Po);
309: case (MDOC_Qc):
310: return(MDOC_Qo);
311: case (MDOC_Re):
312: return(MDOC_Rs);
313: case (MDOC_Sc):
314: return(MDOC_So);
315: case (MDOC_Xc):
316: return(MDOC_Xo);
317: default:
318: break;
319: }
320: abort();
321: /* NOTREACHED */
322: }
323:
324:
325: /*
326: * Rewind rules. This indicates whether to stop rewinding
327: * (REWIND_HALT) without touching our current scope, stop rewinding and
328: * close our current scope (REWIND_REWIND), or continue (REWIND_NOHALT).
329: * The scope-closing and so on occurs in the various rew_* routines.
330: */
1.51 kristaps 331: static enum rew
1.47 kristaps 332: rew_dohalt(enum mdoct tok, enum mdoc_type type,
333: const struct mdoc_node *p)
1.1 kristaps 334: {
335:
336: if (MDOC_ROOT == p->type)
337: return(REWIND_HALT);
338: if (MDOC_VALID & p->flags)
339: return(REWIND_NOHALT);
340:
341: switch (tok) {
342: case (MDOC_Aq):
343: /* FALLTHROUGH */
344: case (MDOC_Bq):
345: /* FALLTHROUGH */
346: case (MDOC_Brq):
347: /* FALLTHROUGH */
348: case (MDOC_D1):
349: /* FALLTHROUGH */
350: case (MDOC_Dl):
351: /* FALLTHROUGH */
352: case (MDOC_Dq):
353: /* FALLTHROUGH */
354: case (MDOC_Op):
355: /* FALLTHROUGH */
356: case (MDOC_Pq):
357: /* FALLTHROUGH */
358: case (MDOC_Ql):
359: /* FALLTHROUGH */
360: case (MDOC_Qq):
361: /* FALLTHROUGH */
362: case (MDOC_Sq):
1.41 kristaps 363: /* FALLTHROUGH */
364: case (MDOC_Vt):
1.1 kristaps 365: assert(MDOC_TAIL != type);
1.83 ! schwarze 366: if (tok != p->tok)
! 367: break;
! 368: if (p->end)
! 369: return(REWIND_HALT);
! 370: if (type == p->type)
1.1 kristaps 371: return(REWIND_REWIND);
372: break;
373: case (MDOC_It):
374: assert(MDOC_TAIL != type);
375: if (type == p->type && tok == p->tok)
376: return(REWIND_REWIND);
377: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
378: return(REWIND_HALT);
379: break;
380: case (MDOC_Sh):
381: if (type == p->type && tok == p->tok)
382: return(REWIND_REWIND);
383: break;
1.19 kristaps 384: case (MDOC_Nd):
385: /* FALLTHROUGH */
1.1 kristaps 386: case (MDOC_Ss):
387: assert(MDOC_TAIL != type);
388: if (type == p->type && tok == p->tok)
389: return(REWIND_REWIND);
390: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
391: return(REWIND_HALT);
392: break;
393: case (MDOC_Ao):
394: /* FALLTHROUGH */
395: case (MDOC_Bd):
396: /* FALLTHROUGH */
397: case (MDOC_Bf):
398: /* FALLTHROUGH */
399: case (MDOC_Bk):
400: /* FALLTHROUGH */
401: case (MDOC_Bl):
402: /* FALLTHROUGH */
403: case (MDOC_Bo):
404: /* FALLTHROUGH */
405: case (MDOC_Bro):
406: /* FALLTHROUGH */
407: case (MDOC_Do):
408: /* FALLTHROUGH */
409: case (MDOC_Eo):
410: /* FALLTHROUGH */
411: case (MDOC_Fo):
412: /* FALLTHROUGH */
413: case (MDOC_Oo):
414: /* FALLTHROUGH */
415: case (MDOC_Po):
416: /* FALLTHROUGH */
417: case (MDOC_Qo):
418: /* FALLTHROUGH */
419: case (MDOC_Rs):
420: /* FALLTHROUGH */
421: case (MDOC_So):
422: /* FALLTHROUGH */
423: case (MDOC_Xo):
1.83 ! schwarze 424: if (tok != p->tok)
! 425: break;
! 426: if (p->end)
! 427: return(REWIND_HALT);
! 428: if (type == p->type)
1.1 kristaps 429: return(REWIND_REWIND);
430: break;
431: /* Multi-line explicit scope close. */
432: case (MDOC_Ac):
433: /* FALLTHROUGH */
434: case (MDOC_Bc):
435: /* FALLTHROUGH */
436: case (MDOC_Brc):
437: /* FALLTHROUGH */
438: case (MDOC_Dc):
439: /* FALLTHROUGH */
440: case (MDOC_Ec):
441: /* FALLTHROUGH */
442: case (MDOC_Ed):
443: /* FALLTHROUGH */
444: case (MDOC_Ek):
445: /* FALLTHROUGH */
446: case (MDOC_El):
447: /* FALLTHROUGH */
448: case (MDOC_Fc):
449: /* FALLTHROUGH */
450: case (MDOC_Ef):
451: /* FALLTHROUGH */
452: case (MDOC_Oc):
453: /* FALLTHROUGH */
454: case (MDOC_Pc):
455: /* FALLTHROUGH */
456: case (MDOC_Qc):
457: /* FALLTHROUGH */
458: case (MDOC_Re):
459: /* FALLTHROUGH */
460: case (MDOC_Sc):
461: /* FALLTHROUGH */
462: case (MDOC_Xc):
1.83 ! schwarze 463: if (rew_alt(tok) != p->tok)
! 464: break;
! 465: if (p->end)
! 466: return(REWIND_HALT);
! 467: if (type == p->type)
1.1 kristaps 468: return(REWIND_REWIND);
469: break;
470: default:
471: abort();
472: /* NOTREACHED */
473: }
474:
475: return(REWIND_NOHALT);
476: }
477:
478:
479: /*
480: * See if we can break an encountered scope (the rew_dohalt has returned
481: * REWIND_NOHALT).
482: */
483: static int
1.47 kristaps 484: rew_dobreak(enum mdoct tok, const struct mdoc_node *p)
1.1 kristaps 485: {
486:
487: assert(MDOC_ROOT != p->type);
488: if (MDOC_ELEM == p->type)
489: return(1);
490: if (MDOC_TEXT == p->type)
491: return(1);
492: if (MDOC_VALID & p->flags)
493: return(1);
1.83 ! schwarze 494: if (MDOC_BODY == p->type && p->end)
! 495: return(1);
1.1 kristaps 496:
497: switch (tok) {
498: case (MDOC_It):
499: return(MDOC_It == p->tok);
1.19 kristaps 500: case (MDOC_Nd):
501: return(MDOC_Nd == p->tok);
1.1 kristaps 502: case (MDOC_Ss):
503: return(MDOC_Ss == p->tok);
504: case (MDOC_Sh):
1.19 kristaps 505: if (MDOC_Nd == p->tok)
506: return(1);
1.1 kristaps 507: if (MDOC_Ss == p->tok)
508: return(1);
509: return(MDOC_Sh == p->tok);
510: case (MDOC_El):
511: if (MDOC_It == p->tok)
512: return(1);
513: break;
514: case (MDOC_Oc):
515: if (MDOC_Op == p->tok)
516: return(1);
517: break;
518: default:
519: break;
520: }
521:
522: if (MDOC_EXPLICIT & mdoc_macros[tok].flags)
523: return(p->tok == rew_alt(tok));
524: else if (MDOC_BLOCK == p->type)
525: return(1);
526:
527: return(tok == p->tok);
528: }
529:
530:
531: static int
1.47 kristaps 532: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 533: {
534: struct mdoc_node *n;
535:
536: n = mdoc->last;
537: if (MDOC_ELEM != n->type)
538: n = n->parent;
539: assert(MDOC_ELEM == n->type);
540: assert(tok == n->tok);
541:
542: return(rew_last(mdoc, n));
543: }
544:
545:
1.83 ! schwarze 546: /*
! 547: * We are trying to close a block identified by tok,
! 548: * but the child block *broken is still open.
! 549: * Thus, postpone closing the tok block
! 550: * until the rew_sub call closing *broken.
! 551: */
! 552: static int
! 553: make_pending(struct mdoc_node *broken, enum mdoct tok,
! 554: struct mdoc *m, int line, int ppos)
! 555: {
! 556: struct mdoc_node *breaker;
! 557:
! 558: /*
! 559: * Iterate backwards, searching for the block matching tok,
! 560: * that is, the block breaking the *broken block.
! 561: */
! 562: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
! 563:
! 564: /*
! 565: * If the *broken block had already been broken before
! 566: * and we encounter its breaker, make the tok block
! 567: * pending on the inner breaker.
! 568: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
! 569: * becomes "[A broken=[B [C->B B] tok=A] C]"
! 570: * and finally "[A [B->A [C->B B] A] C]".
! 571: */
! 572: if (breaker == broken->pending) {
! 573: broken = breaker;
! 574: continue;
! 575: }
! 576:
! 577: if (REWIND_REWIND != rew_dohalt(tok, MDOC_BLOCK, breaker))
! 578: continue;
! 579: if (MDOC_BODY == broken->type)
! 580: broken = broken->parent;
! 581:
! 582: /*
! 583: * Found the breaker.
! 584: * If another, outer breaker is already pending on
! 585: * the *broken block, we must not clobber the link
! 586: * to the outer breaker, but make it pending on the
! 587: * new, now inner breaker.
! 588: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
! 589: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
! 590: * and finally "[A [B->A [C->B A] B] C]".
! 591: */
! 592: if (broken->pending) {
! 593: struct mdoc_node *taker;
! 594:
! 595: /*
! 596: * If the breaker had also been broken before,
! 597: * it cannot take on the outer breaker itself,
! 598: * but must hand it on to its own breakers.
! 599: * Graphically, this is the following situation:
! 600: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
! 601: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
! 602: */
! 603: taker = breaker;
! 604: while (taker->pending)
! 605: taker = taker->pending;
! 606: taker->pending = broken->pending;
! 607: }
! 608: broken->pending = breaker;
! 609: mdoc_vmsg(m, MANDOCERR_SCOPE, line, ppos, "%s breaks %s",
! 610: mdoc_macronames[tok], mdoc_macronames[broken->tok]);
! 611: return(1);
! 612: }
! 613:
! 614: /*
! 615: * Found no matching block for tok.
! 616: * Are you trying to close a block that is not open?
! 617: * Report failure and abort the parser.
! 618: */
! 619: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE);
! 620: return(0);
! 621: }
! 622:
1.1 kristaps 623: static int
1.32 kristaps 624: rew_sub(enum mdoc_type t, struct mdoc *m,
1.47 kristaps 625: enum mdoct tok, int line, int ppos)
1.1 kristaps 626: {
627: struct mdoc_node *n;
1.51 kristaps 628: enum rew c;
1.1 kristaps 629:
630: /* LINTED */
1.32 kristaps 631: for (n = m->last; n; n = n->parent) {
632: c = rew_dohalt(tok, t, n);
633: if (REWIND_HALT == c) {
1.83 ! schwarze 634: if (n->end || MDOC_BLOCK != t)
1.32 kristaps 635: return(1);
636: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags))
637: return(1);
1.68 kristaps 638: /* FIXME: shouldn't raise an error */
639: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE);
640: return(0);
1.32 kristaps 641: }
1.1 kristaps 642: if (REWIND_REWIND == c)
643: break;
644: else if (rew_dobreak(tok, n))
645: continue;
1.83 ! schwarze 646: return(make_pending(n, tok, m, line, ppos));
1.1 kristaps 647: }
648:
649: assert(n);
1.47 kristaps 650: if ( ! rew_last(m, n))
651: return(0);
652:
653: /*
1.83 ! schwarze 654: * The current block extends an enclosing block.
! 655: * Now that the current block ends, close the enclosing block, too.
1.47 kristaps 656: */
1.83 ! schwarze 657: while (NULL != (n = n->pending)) {
1.47 kristaps 658: if ( ! rew_last(m, n))
659: return(0);
1.83 ! schwarze 660: if (MDOC_HEAD == n->type &&
! 661: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.47 kristaps 662: return(0);
663: }
664:
665: return(1);
1.1 kristaps 666: }
667:
668:
669: static int
1.66 kristaps 670: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 671: {
1.66 kristaps 672: int la;
1.55 kristaps 673: enum margserr ac;
1.1 kristaps 674: char *p;
675:
1.66 kristaps 676: if ('\0' == buf[*pos])
1.1 kristaps 677: return(1);
678:
679: for (;;) {
1.66 kristaps 680: la = *pos;
681: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 682:
1.53 kristaps 683: if (ARGS_ERROR == ac)
1.1 kristaps 684: return(0);
1.53 kristaps 685: else if (ARGS_EOLN == ac)
1.1 kristaps 686: break;
1.66 kristaps 687:
1.67 schwarze 688: assert(DELIM_NONE != mdoc_isdelim(p));
1.66 kristaps 689: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 690: return(0);
1.66 kristaps 691:
692: /*
693: * If we encounter end-of-sentence symbols, then trigger
694: * the double-space.
695: *
696: * XXX: it's easy to allow this to propogate outward to
697: * the last symbol, such that `. )' will cause the
698: * correct double-spacing. However, (1) groff isn't
699: * smart enough to do this and (2) it would require
700: * knowing which symbols break this behaviour, for
701: * example, `. ;' shouldn't propogate the double-space.
702: */
703: if (mandoc_eos(p, strlen(p)))
704: m->last->flags |= MDOC_EOS;
1.1 kristaps 705: }
706:
707: return(1);
708: }
709:
710:
711: /*
712: * Close out block partial/full explicit.
713: */
714: static int
715: blk_exp_close(MACRO_PROT_ARGS)
716: {
1.83 ! schwarze 717: struct mdoc_node *body; /* Our own body. */
! 718: struct mdoc_node *later; /* A sub-block starting later. */
! 719: struct mdoc_node *n; /* For searching backwards. */
! 720:
1.60 kristaps 721: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 722: enum margserr ac;
1.83 ! schwarze 723: enum mdoct atok, ntok;
1.1 kristaps 724: char *p;
725:
1.60 kristaps 726: nl = MDOC_NEWLINE & m->flags;
727:
1.1 kristaps 728: switch (tok) {
729: case (MDOC_Ec):
730: maxargs = 1;
731: break;
732: default:
733: maxargs = 0;
734: break;
735: }
736:
1.83 ! schwarze 737: /*
! 738: * Search backwards for beginnings of blocks,
! 739: * both of our own and of pending sub-blocks.
! 740: */
! 741: atok = rew_alt(tok);
! 742: body = later = NULL;
! 743: for (n = m->last; n; n = n->parent) {
! 744: if (MDOC_VALID & n->flags)
! 745: continue;
! 746:
! 747: /* Remember the start of our own body. */
! 748: if (MDOC_BODY == n->type && atok == n->tok) {
! 749: if ( ! n->end)
! 750: body = n;
! 751: continue;
! 752: }
! 753:
! 754: if (MDOC_BLOCK != n->type)
! 755: continue;
! 756: if (atok == n->tok) {
! 757: assert(body);
! 758:
! 759: /*
! 760: * Found the start of our own block.
! 761: * When there is no pending sub block,
! 762: * just proceed to closing out.
! 763: */
! 764: if (NULL == later)
! 765: break;
! 766:
! 767: /*
! 768: * When there is a pending sub block,
! 769: * postpone closing out the current block
! 770: * until the rew_sub() closing out the sub-block.
! 771: */
! 772: if ( ! make_pending(later, tok, m, line, ppos))
! 773: return(0);
! 774:
! 775: /*
! 776: * Mark the place where the formatting - but not
! 777: * the scope - of the current block ends.
! 778: */
! 779: if ( ! mdoc_endbody_alloc(m, line, ppos,
! 780: atok, body, ENDBODY_SPACE))
! 781: return(0);
! 782: break;
! 783: }
! 784:
! 785: /*
! 786: * When finding an open sub block, remember the last
! 787: * open explicit block, or, in case there are only
! 788: * implicit ones, the first open implicit block.
! 789: */
! 790: if (later &&
! 791: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
! 792: continue;
! 793: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags) {
! 794: assert( ! (MDOC_ACTED & n->flags));
! 795: later = n;
! 796: }
! 797: }
! 798:
1.1 kristaps 799: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.68 kristaps 800: /* FIXME: do this in validate */
1.22 kristaps 801: if (buf[*pos])
1.68 kristaps 802: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 803: return(0);
1.22 kristaps 804:
1.32 kristaps 805: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 kristaps 806: return(0);
1.32 kristaps 807: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 808: }
809:
1.32 kristaps 810: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 811: return(0);
812:
1.83 ! schwarze 813: if (NULL == later && maxargs > 0)
1.32 kristaps 814: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 815: return(0);
816:
1.27 kristaps 817: for (flushed = j = 0; ; j++) {
1.1 kristaps 818: lastarg = *pos;
819:
820: if (j == maxargs && ! flushed) {
1.32 kristaps 821: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 822: return(0);
823: flushed = 1;
824: }
825:
1.53 kristaps 826: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 827:
1.53 kristaps 828: if (ARGS_ERROR == ac)
1.1 kristaps 829: return(0);
1.53 kristaps 830: if (ARGS_PUNCT == ac)
1.1 kristaps 831: break;
1.53 kristaps 832: if (ARGS_EOLN == ac)
1.1 kristaps 833: break;
834:
1.54 kristaps 835: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
836:
837: if (MDOC_MAX == ntok) {
838: if ( ! mdoc_word_alloc(m, line, lastarg, p))
1.1 kristaps 839: return(0);
1.54 kristaps 840: continue;
841: }
1.1 kristaps 842:
1.54 kristaps 843: if ( ! flushed) {
844: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
845: return(0);
846: flushed = 1;
847: }
1.82 kristaps 848: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 849: return(0);
1.54 kristaps 850: break;
1.1 kristaps 851: }
852:
1.32 kristaps 853: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 854: return(0);
855:
1.60 kristaps 856: if ( ! nl)
1.1 kristaps 857: return(1);
1.32 kristaps 858: return(append_delims(m, line, pos, buf));
1.1 kristaps 859: }
860:
861:
862: static int
863: in_line(MACRO_PROT_ARGS)
864: {
1.70 kristaps 865: int la, scope, cnt, nc, nl;
1.56 kristaps 866: enum margverr av;
1.53 kristaps 867: enum mdoct ntok;
1.55 kristaps 868: enum margserr ac;
1.67 schwarze 869: enum mdelim d;
1.53 kristaps 870: struct mdoc_arg *arg;
871: char *p;
1.1 kristaps 872:
1.60 kristaps 873: nl = MDOC_NEWLINE & m->flags;
874:
1.4 kristaps 875: /*
876: * Whether we allow ignored elements (those without content,
877: * usually because of reserved words) to squeak by.
878: */
1.45 kristaps 879:
1.4 kristaps 880: switch (tok) {
1.26 kristaps 881: case (MDOC_An):
882: /* FALLTHROUGH */
883: case (MDOC_Ar):
1.4 kristaps 884: /* FALLTHROUGH */
885: case (MDOC_Fl):
886: /* FALLTHROUGH */
1.12 kristaps 887: case (MDOC_Lk):
888: /* FALLTHROUGH */
1.26 kristaps 889: case (MDOC_Nm):
890: /* FALLTHROUGH */
1.25 kristaps 891: case (MDOC_Pa):
1.4 kristaps 892: nc = 1;
893: break;
894: default:
895: nc = 0;
896: break;
897: }
898:
1.27 kristaps 899: for (arg = NULL;; ) {
1.1 kristaps 900: la = *pos;
1.56 kristaps 901: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 902:
1.56 kristaps 903: if (ARGV_WORD == av) {
1.1 kristaps 904: *pos = la;
905: break;
906: }
1.56 kristaps 907: if (ARGV_EOLN == av)
1.1 kristaps 908: break;
1.56 kristaps 909: if (ARGV_ARG == av)
1.1 kristaps 910: continue;
911:
912: mdoc_argv_free(arg);
913: return(0);
914: }
915:
1.70 kristaps 916: for (cnt = scope = 0;; ) {
1.1 kristaps 917: la = *pos;
1.53 kristaps 918: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 919:
1.53 kristaps 920: if (ARGS_ERROR == ac)
1.1 kristaps 921: return(0);
1.53 kristaps 922: if (ARGS_EOLN == ac)
1.1 kristaps 923: break;
1.53 kristaps 924: if (ARGS_PUNCT == ac)
1.1 kristaps 925: break;
926:
1.53 kristaps 927: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 928:
1.4 kristaps 929: /*
930: * In this case, we've located a submacro and must
931: * execute it. Close out scope, if open. If no
932: * elements have been generated, either create one (nc)
933: * or raise a warning.
934: */
1.1 kristaps 935:
1.53 kristaps 936: if (MDOC_MAX != ntok) {
1.70 kristaps 937: if (scope && ! rew_elem(m, tok))
1.1 kristaps 938: return(0);
1.4 kristaps 939: if (nc && 0 == cnt) {
1.32 kristaps 940: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 941: return(0);
1.32 kristaps 942: if ( ! rew_last(m, m->last))
1.12 kristaps 943: return(0);
1.7 kristaps 944: } else if ( ! nc && 0 == cnt) {
945: mdoc_argv_free(arg);
1.68 kristaps 946: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 947: return(0);
1.7 kristaps 948: }
1.82 kristaps 949: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 950: return(0);
1.60 kristaps 951: if ( ! nl)
1.1 kristaps 952: return(1);
1.32 kristaps 953: return(append_delims(m, line, pos, buf));
1.29 kristaps 954: }
1.1 kristaps 955:
1.4 kristaps 956: /*
957: * Non-quote-enclosed punctuation. Set up our scope, if
958: * a word; rewind the scope, if a delimiter; then append
959: * the word.
960: */
1.1 kristaps 961:
1.67 schwarze 962: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 963:
1.70 kristaps 964: if (DELIM_NONE != d) {
965: /*
966: * If we encounter closing punctuation, no word
967: * has been omitted, no scope is open, and we're
968: * allowed to have an empty element, then start
969: * a new scope. `Ar', `Fl', and `Li', only do
970: * this once per invocation. There may be more
971: * of these (all of them?).
972: */
973: if (0 == cnt && (nc || MDOC_Li == tok) &&
974: DELIM_CLOSE == d && ! scope) {
975: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
976: return(0);
977: if (MDOC_Ar == tok || MDOC_Li == tok ||
978: MDOC_Fl == tok)
979: cnt++;
980: scope = 1;
981: }
982: /*
983: * Close out our scope, if one is open, before
984: * any punctuation.
985: */
986: if (scope && ! rew_elem(m, tok))
1.1 kristaps 987: return(0);
1.70 kristaps 988: scope = 0;
989: } else if ( ! scope) {
1.32 kristaps 990: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 991: return(0);
1.70 kristaps 992: scope = 1;
1.1 kristaps 993: }
994:
1.67 schwarze 995: if (DELIM_NONE == d)
1.3 kristaps 996: cnt++;
1.32 kristaps 997: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 998: return(0);
1.39 kristaps 999:
1000: /*
1001: * `Fl' macros have their scope re-opened with each new
1002: * word so that the `-' can be added to each one without
1003: * having to parse out spaces.
1004: */
1.70 kristaps 1005: if (scope && MDOC_Fl == tok) {
1.39 kristaps 1006: if ( ! rew_elem(m, tok))
1007: return(0);
1.70 kristaps 1008: scope = 0;
1.39 kristaps 1009: }
1.1 kristaps 1010: }
1011:
1.70 kristaps 1012: if (scope && ! rew_elem(m, tok))
1.1 kristaps 1013: return(0);
1.4 kristaps 1014:
1015: /*
1016: * If no elements have been collected and we're allowed to have
1017: * empties (nc), open a scope and close it out. Otherwise,
1018: * raise a warning.
1019: */
1.45 kristaps 1020:
1.4 kristaps 1021: if (nc && 0 == cnt) {
1.32 kristaps 1022: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 1023: return(0);
1.32 kristaps 1024: if ( ! rew_last(m, m->last))
1.12 kristaps 1025: return(0);
1.7 kristaps 1026: } else if ( ! nc && 0 == cnt) {
1027: mdoc_argv_free(arg);
1.68 kristaps 1028: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 1029: return(0);
1.7 kristaps 1030: }
1.4 kristaps 1031:
1.60 kristaps 1032: if ( ! nl)
1.1 kristaps 1033: return(1);
1.32 kristaps 1034: return(append_delims(m, line, pos, buf));
1.1 kristaps 1035: }
1036:
1037:
1038: static int
1039: blk_full(MACRO_PROT_ARGS)
1040: {
1.63 kristaps 1041: int la, nl;
1.1 kristaps 1042: struct mdoc_arg *arg;
1.45 kristaps 1043: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 1044: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 1045: struct mdoc_node *n;
1.74 kristaps 1046: enum mdoc_type mtt;
1.53 kristaps 1047: enum mdoct ntok;
1.59 kristaps 1048: enum margserr ac, lac;
1.56 kristaps 1049: enum margverr av;
1.1 kristaps 1050: char *p;
1051:
1.63 kristaps 1052: nl = MDOC_NEWLINE & m->flags;
1053:
1.45 kristaps 1054: /* Close out prior implicit scope. */
1.19 kristaps 1055:
1.1 kristaps 1056: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.32 kristaps 1057: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 1058: return(0);
1.32 kristaps 1059: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1060: return(0);
1061: }
1062:
1.45 kristaps 1063: /*
1064: * This routine accomodates implicitly- and explicitly-scoped
1065: * macro openings. Implicit ones first close out prior scope
1066: * (seen above). Delay opening the head until necessary to
1067: * allow leading punctuation to print. Special consideration
1068: * for `It -column', which has phrase-part syntax instead of
1069: * regular child nodes.
1070: */
1071:
1.1 kristaps 1072: for (arg = NULL;; ) {
1.45 kristaps 1073: la = *pos;
1.56 kristaps 1074: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1075:
1.56 kristaps 1076: if (ARGV_WORD == av) {
1.45 kristaps 1077: *pos = la;
1.1 kristaps 1078: break;
1079: }
1080:
1.56 kristaps 1081: if (ARGV_EOLN == av)
1.1 kristaps 1082: break;
1.56 kristaps 1083: if (ARGV_ARG == av)
1.1 kristaps 1084: continue;
1085:
1086: mdoc_argv_free(arg);
1087: return(0);
1088: }
1089:
1.32 kristaps 1090: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1091: return(0);
1092:
1.49 kristaps 1093: head = body = NULL;
1.1 kristaps 1094:
1.45 kristaps 1095: /*
1096: * The `Nd' macro has all arguments in its body: it's a hybrid
1097: * of block partial-explicit and full-implicit. Stupid.
1098: */
1.19 kristaps 1099:
1.45 kristaps 1100: if (MDOC_Nd == tok) {
1101: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1102: return(0);
1103: head = m->last;
1.32 kristaps 1104: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.19 kristaps 1105: return(0);
1.32 kristaps 1106: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.19 kristaps 1107: return(0);
1.49 kristaps 1108: body = m->last;
1.19 kristaps 1109: }
1110:
1.59 kristaps 1111: ac = ARGS_ERROR;
1112:
1.62 kristaps 1113: for ( ; ; ) {
1.45 kristaps 1114: la = *pos;
1.75 kristaps 1115: /* Initialise last-phrase-type with ARGS_PEND. */
1116: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.53 kristaps 1117: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1118:
1.53 kristaps 1119: if (ARGS_ERROR == ac)
1.1 kristaps 1120: return(0);
1.75 kristaps 1121:
1122: if (ARGS_EOLN == ac) {
1123: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1124: break;
1125: /*
1126: * This is necessary: if the last token on a
1127: * line is a `Ta' or tab, then we'll get
1128: * ARGS_EOLN, so we must be smart enough to
1129: * reopen our scope if the last parse was a
1130: * phrase or partial phrase.
1131: */
1132: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1133: return(0);
1134: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1135: return(0);
1136: body = m->last;
1.1 kristaps 1137: break;
1.75 kristaps 1138: }
1.45 kristaps 1139:
1.73 kristaps 1140: /*
1141: * Emit leading punctuation (i.e., punctuation before
1142: * the MDOC_HEAD) for non-phrase types.
1143: */
1.45 kristaps 1144:
1.59 kristaps 1145: if (NULL == head &&
1.71 kristaps 1146: ARGS_PEND != ac &&
1.59 kristaps 1147: ARGS_PHRASE != ac &&
1.57 kristaps 1148: ARGS_PPHRASE != ac &&
1.53 kristaps 1149: ARGS_QWORD != ac &&
1.67 schwarze 1150: DELIM_OPEN == mdoc_isdelim(p)) {
1.45 kristaps 1151: if ( ! mdoc_word_alloc(m, line, la, p))
1152: return(0);
1153: continue;
1154: }
1155:
1.74 kristaps 1156: /* Open a head if one hasn't been opened. */
1.45 kristaps 1157:
1.74 kristaps 1158: if (NULL == head) {
1.45 kristaps 1159: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1160: return(0);
1161: head = m->last;
1162: }
1163:
1.72 kristaps 1164: if (ARGS_PHRASE == ac ||
1165: ARGS_PEND == ac ||
1166: ARGS_PPHRASE == ac) {
1.73 kristaps 1167: /*
1.74 kristaps 1168: * If we haven't opened a body yet, rewind the
1169: * head; if we have, rewind that instead.
1170: */
1171:
1172: mtt = body ? MDOC_BODY : MDOC_HEAD;
1173: if ( ! rew_sub(mtt, m, tok, line, ppos))
1174: return(0);
1175:
1176: /* Then allocate our body context. */
1177:
1178: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1179: return(0);
1180: body = m->last;
1181:
1182: /*
1.73 kristaps 1183: * Process phrases: set whether we're in a
1184: * partial-phrase (this effects line handling)
1185: * then call down into the phrase parser.
1186: */
1.74 kristaps 1187:
1.65 kristaps 1188: if (ARGS_PPHRASE == ac)
1189: m->flags |= MDOC_PPHRASE;
1.71 kristaps 1190: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1191: m->flags |= MDOC_PPHRASE;
1192:
1.82 kristaps 1193: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1194: return(0);
1.71 kristaps 1195:
1.65 kristaps 1196: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1197: continue;
1198: }
1199:
1.54 kristaps 1200: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1201:
1202: if (MDOC_MAX == ntok) {
1.53 kristaps 1203: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1204: return(0);
1.53 kristaps 1205: continue;
1.45 kristaps 1206: }
1.53 kristaps 1207:
1.82 kristaps 1208: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.45 kristaps 1209: return(0);
1.53 kristaps 1210: break;
1.45 kristaps 1211: }
1.1 kristaps 1212:
1.45 kristaps 1213: if (NULL == head) {
1214: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1215: return(0);
1.45 kristaps 1216: head = m->last;
1.1 kristaps 1217: }
1218:
1.63 kristaps 1219: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1220: return(0);
1.19 kristaps 1221:
1.49 kristaps 1222: /* If we've already opened our body, exit now. */
1.45 kristaps 1223:
1.49 kristaps 1224: if (NULL != body)
1.77 kristaps 1225: goto out;
1.19 kristaps 1226:
1.47 kristaps 1227: /*
1.49 kristaps 1228: * If there is an open (i.e., unvalidated) sub-block requiring
1229: * explicit close-out, postpone switching the current block from
1230: * head to body until the rew_sub() call closing out that
1231: * sub-block.
1.47 kristaps 1232: */
1233: for (n = m->last; n && n != head; n = n->parent) {
1.49 kristaps 1234: if (MDOC_BLOCK == n->type &&
1235: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1236: ! (MDOC_VALID & n->flags)) {
1237: assert( ! (MDOC_ACTED & n->flags));
1.47 kristaps 1238: n->pending = head;
1239: return(1);
1240: }
1241: }
1242:
1.45 kristaps 1243: /* Close out scopes to remain in a consistent state. */
1244:
1.32 kristaps 1245: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1246: return(0);
1.32 kristaps 1247: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1248: return(0);
1249:
1.77 kristaps 1250: out:
1251: if ( ! (MDOC_FREECOL & m->flags))
1252: return(1);
1253:
1254: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1255: return(0);
1256: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1257: return(0);
1258:
1259: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1260: return(1);
1261: }
1262:
1263:
1264: static int
1265: blk_part_imp(MACRO_PROT_ARGS)
1266: {
1.63 kristaps 1267: int la, nl;
1.53 kristaps 1268: enum mdoct ntok;
1.55 kristaps 1269: enum margserr ac;
1.1 kristaps 1270: char *p;
1.43 kristaps 1271: struct mdoc_node *blk; /* saved block context */
1272: struct mdoc_node *body; /* saved body context */
1273: struct mdoc_node *n;
1.1 kristaps 1274:
1.63 kristaps 1275: nl = MDOC_NEWLINE & m->flags;
1276:
1.43 kristaps 1277: /*
1278: * A macro that spans to the end of the line. This is generally
1279: * (but not necessarily) called as the first macro. The block
1280: * has a head as the immediate child, which is always empty,
1281: * followed by zero or more opening punctuation nodes, then the
1282: * body (which may be empty, depending on the macro), then zero
1283: * or more closing punctuation nodes.
1284: */
1.32 kristaps 1285:
1286: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1287: return(0);
1.43 kristaps 1288:
1.32 kristaps 1289: blk = m->last;
1.43 kristaps 1290:
1.32 kristaps 1291: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1292: return(0);
1.32 kristaps 1293: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1294: return(0);
1295:
1.43 kristaps 1296: /*
1297: * Open the body scope "on-demand", that is, after we've
1298: * processed all our the leading delimiters (open parenthesis,
1299: * etc.).
1300: */
1.1 kristaps 1301:
1.43 kristaps 1302: for (body = NULL; ; ) {
1.32 kristaps 1303: la = *pos;
1.53 kristaps 1304: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.43 kristaps 1305:
1.53 kristaps 1306: if (ARGS_ERROR == ac)
1.1 kristaps 1307: return(0);
1.53 kristaps 1308: if (ARGS_EOLN == ac)
1.43 kristaps 1309: break;
1.53 kristaps 1310: if (ARGS_PUNCT == ac)
1.1 kristaps 1311: break;
1312:
1.53 kristaps 1313: if (NULL == body && ARGS_QWORD != ac &&
1.67 schwarze 1314: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 kristaps 1315: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1316: return(0);
1317: continue;
1318: }
1319:
1.43 kristaps 1320: if (NULL == body) {
1321: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1322: return(0);
1323: body = m->last;
1324: }
1325:
1.54 kristaps 1326: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1327:
1328: if (MDOC_MAX == ntok) {
1.53 kristaps 1329: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1330: return(0);
1.53 kristaps 1331: continue;
1332: }
1.43 kristaps 1333:
1.82 kristaps 1334: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1335: return(0);
1.53 kristaps 1336: break;
1.1 kristaps 1337: }
1338:
1.43 kristaps 1339: /* Clean-ups to leave in a consistent state. */
1340:
1.44 kristaps 1341: if (NULL == body) {
1342: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1343: return(0);
1344: body = m->last;
1.64 kristaps 1345: }
1346:
1347: for (n = body->child; n && n->next; n = n->next)
1348: /* Do nothing. */ ;
1349:
1350: /*
1351: * End of sentence spacing: if the last node is a text node and
1352: * has a trailing period, then mark it as being end-of-sentence.
1353: */
1354:
1355: if (n && MDOC_TEXT == n->type && n->string)
1356: if (mandoc_eos(n->string, strlen(n->string)))
1357: n->flags |= MDOC_EOS;
1358:
1359: /* Up-propogate the end-of-space flag. */
1360:
1361: if (n && (MDOC_EOS & n->flags)) {
1362: body->flags |= MDOC_EOS;
1363: body->parent->flags |= MDOC_EOS;
1.44 kristaps 1364: }
1.43 kristaps 1365:
1.83 ! schwarze 1366: /*
! 1367: * If there is an open sub-block requiring explicit close-out,
! 1368: * postpone closing out the current block
! 1369: * until the rew_sub() call closing out the sub-block.
! 1370: */
! 1371: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
! 1372: if (MDOC_BLOCK == n->type &&
! 1373: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
! 1374: ! (MDOC_VALID & n->flags)) {
! 1375: assert( ! (MDOC_ACTED & n->flags));
! 1376: if ( ! make_pending(n, tok, m, line, ppos))
! 1377: return(0);
! 1378: if ( ! mdoc_endbody_alloc(m, line, ppos,
! 1379: tok, body, ENDBODY_NOSPACE))
! 1380: return(0);
! 1381: return(1);
! 1382: }
! 1383: }
! 1384:
1.32 kristaps 1385: /*
1386: * If we can't rewind to our body, then our scope has already
1387: * been closed by another macro (like `Oc' closing `Op'). This
1388: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1389: * crufty use of `Op' breakage.
1.1 kristaps 1390: */
1.83 ! schwarze 1391: if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPE, line, ppos,
! 1392: "%s broken", mdoc_macronames[tok]))
1.32 kristaps 1393: return(0);
1.43 kristaps 1394:
1.83 ! schwarze 1395: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.32 kristaps 1396: return(0);
1.1 kristaps 1397:
1.32 kristaps 1398: /* Standard appending of delimiters. */
1.1 kristaps 1399:
1.63 kristaps 1400: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1401: return(0);
1402:
1.32 kristaps 1403: /* Rewind scope, if applicable. */
1.1 kristaps 1404:
1.83 ! schwarze 1405: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1406: return(0);
1407:
1408: return(1);
1409: }
1410:
1411:
1412: static int
1413: blk_part_exp(MACRO_PROT_ARGS)
1414: {
1.60 kristaps 1415: int la, nl;
1.55 kristaps 1416: enum margserr ac;
1.43 kristaps 1417: struct mdoc_node *head; /* keep track of head */
1418: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1419: char *p;
1.53 kristaps 1420: enum mdoct ntok;
1.1 kristaps 1421:
1.60 kristaps 1422: nl = MDOC_NEWLINE & m->flags;
1423:
1.43 kristaps 1424: /*
1425: * The opening of an explicit macro having zero or more leading
1426: * punctuation nodes; a head with optional single element (the
1427: * case of `Eo'); and a body that may be empty.
1428: */
1.32 kristaps 1429:
1430: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1431: return(0);
1.32 kristaps 1432:
1.43 kristaps 1433: for (head = body = NULL; ; ) {
1.32 kristaps 1434: la = *pos;
1.53 kristaps 1435: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1436:
1.53 kristaps 1437: if (ARGS_ERROR == ac)
1.1 kristaps 1438: return(0);
1.53 kristaps 1439: if (ARGS_PUNCT == ac)
1.1 kristaps 1440: break;
1.53 kristaps 1441: if (ARGS_EOLN == ac)
1.1 kristaps 1442: break;
1.43 kristaps 1443:
1444: /* Flush out leading punctuation. */
1445:
1.53 kristaps 1446: if (NULL == head && ARGS_QWORD != ac &&
1.67 schwarze 1447: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1448: assert(NULL == body);
1449: if ( ! mdoc_word_alloc(m, line, la, p))
1450: return(0);
1451: continue;
1452: }
1453:
1454: if (NULL == head) {
1455: assert(NULL == body);
1456: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1457: return(0);
1.43 kristaps 1458: head = m->last;
1.1 kristaps 1459: }
1460:
1.43 kristaps 1461: /*
1462: * `Eo' gobbles any data into the head, but most other
1463: * macros just immediately close out and begin the body.
1464: */
1465:
1466: if (NULL == body) {
1467: assert(head);
1468: /* No check whether it's a macro! */
1469: if (MDOC_Eo == tok)
1470: if ( ! mdoc_word_alloc(m, line, la, p))
1471: return(0);
1472:
1.32 kristaps 1473: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1474: return(0);
1.32 kristaps 1475: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1476: return(0);
1.43 kristaps 1477: body = m->last;
1478:
1479: if (MDOC_Eo == tok)
1480: continue;
1.1 kristaps 1481: }
1.43 kristaps 1482:
1483: assert(NULL != head && NULL != body);
1484:
1.54 kristaps 1485: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1486:
1487: if (MDOC_MAX == ntok) {
1.53 kristaps 1488: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1489: return(0);
1.53 kristaps 1490: continue;
1.43 kristaps 1491: }
1492:
1.82 kristaps 1493: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1494: return(0);
1.53 kristaps 1495: break;
1.1 kristaps 1496: }
1497:
1.43 kristaps 1498: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1499:
1.43 kristaps 1500: if (NULL == head) {
1501: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1502: return(0);
1503: head = m->last;
1504: }
1505:
1506: if (NULL == body) {
1.32 kristaps 1507: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1508: return(0);
1.32 kristaps 1509: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1510: return(0);
1.43 kristaps 1511: body = m->last;
1.1 kristaps 1512: }
1513:
1.32 kristaps 1514: /* Standard appending of delimiters. */
1515:
1.60 kristaps 1516: if ( ! nl)
1.1 kristaps 1517: return(1);
1.32 kristaps 1518: return(append_delims(m, line, pos, buf));
1.1 kristaps 1519: }
1520:
1521:
1.61 kristaps 1522: /* ARGSUSED */
1.1 kristaps 1523: static int
1524: in_line_argn(MACRO_PROT_ARGS)
1525: {
1.60 kristaps 1526: int la, flushed, j, maxargs, nl;
1.55 kristaps 1527: enum margserr ac;
1.56 kristaps 1528: enum margverr av;
1.53 kristaps 1529: struct mdoc_arg *arg;
1530: char *p;
1531: enum mdoct ntok;
1.1 kristaps 1532:
1.60 kristaps 1533: nl = MDOC_NEWLINE & m->flags;
1534:
1.46 kristaps 1535: /*
1536: * A line macro that has a fixed number of arguments (maxargs).
1537: * Only open the scope once the first non-leading-punctuation is
1538: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1539: * keep it open until the maximum number of arguments are
1540: * exhausted.
1541: */
1.1 kristaps 1542:
1543: switch (tok) {
1544: case (MDOC_Ap):
1545: /* FALLTHROUGH */
1546: case (MDOC_No):
1547: /* FALLTHROUGH */
1548: case (MDOC_Ns):
1549: /* FALLTHROUGH */
1550: case (MDOC_Ux):
1551: maxargs = 0;
1552: break;
1.42 kristaps 1553: case (MDOC_Xr):
1554: maxargs = 2;
1555: break;
1.1 kristaps 1556: default:
1557: maxargs = 1;
1558: break;
1559: }
1560:
1.46 kristaps 1561: for (arg = NULL; ; ) {
1.32 kristaps 1562: la = *pos;
1.56 kristaps 1563: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1564:
1.56 kristaps 1565: if (ARGV_WORD == av) {
1.32 kristaps 1566: *pos = la;
1.1 kristaps 1567: break;
1568: }
1569:
1.56 kristaps 1570: if (ARGV_EOLN == av)
1.1 kristaps 1571: break;
1.56 kristaps 1572: if (ARGV_ARG == av)
1.1 kristaps 1573: continue;
1574:
1575: mdoc_argv_free(arg);
1576: return(0);
1577: }
1578:
1.46 kristaps 1579: for (flushed = j = 0; ; ) {
1.32 kristaps 1580: la = *pos;
1.53 kristaps 1581: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1582:
1.53 kristaps 1583: if (ARGS_ERROR == ac)
1.1 kristaps 1584: return(0);
1.53 kristaps 1585: if (ARGS_PUNCT == ac)
1.1 kristaps 1586: break;
1.53 kristaps 1587: if (ARGS_EOLN == ac)
1.1 kristaps 1588: break;
1589:
1.46 kristaps 1590: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1591: ARGS_QWORD != ac &&
1.67 schwarze 1592: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.46 kristaps 1593: if ( ! mdoc_word_alloc(m, line, la, p))
1594: return(0);
1595: continue;
1596: } else if (0 == j)
1597: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1598: return(0);
1599:
1600: if (j == maxargs && ! flushed) {
1601: if ( ! rew_elem(m, tok))
1602: return(0);
1603: flushed = 1;
1604: }
1605:
1.54 kristaps 1606: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1607:
1608: if (MDOC_MAX != ntok) {
1.32 kristaps 1609: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1610: return(0);
1611: flushed = 1;
1.82 kristaps 1612: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1613: return(0);
1.46 kristaps 1614: j++;
1.1 kristaps 1615: break;
1616: }
1617:
1618: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1619: ARGS_QWORD != ac &&
1.67 schwarze 1620: ! flushed &&
1621: DELIM_NONE != mdoc_isdelim(p)) {
1.32 kristaps 1622: if ( ! rew_elem(m, tok))
1.1 kristaps 1623: return(0);
1624: flushed = 1;
1625: }
1.42 kristaps 1626:
1627: /*
1628: * XXX: this is a hack to work around groff's ugliness
1629: * as regards `Xr' and extraneous arguments. It should
1630: * ideally be deprecated behaviour, but because this is
1631: * code is no here, it's unlikely to be removed.
1632: */
1.43 kristaps 1633:
1.46 kristaps 1634: #ifdef __OpenBSD__
1.42 kristaps 1635: if (MDOC_Xr == tok && j == maxargs) {
1.46 kristaps 1636: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.42 kristaps 1637: return(0);
1638: if ( ! rew_elem(m, MDOC_Ns))
1639: return(0);
1640: }
1.46 kristaps 1641: #endif
1.42 kristaps 1642:
1.32 kristaps 1643: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1644: return(0);
1.46 kristaps 1645: j++;
1.1 kristaps 1646: }
1647:
1.46 kristaps 1648: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1649: return(0);
1650:
1651: /* Close out in a consistent state. */
1.32 kristaps 1652:
1653: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1654: return(0);
1.60 kristaps 1655: if ( ! nl)
1.1 kristaps 1656: return(1);
1.32 kristaps 1657: return(append_delims(m, line, pos, buf));
1.1 kristaps 1658: }
1659:
1660:
1661: static int
1662: in_line_eoln(MACRO_PROT_ARGS)
1663: {
1.56 kristaps 1664: int la;
1.55 kristaps 1665: enum margserr ac;
1.56 kristaps 1666: enum margverr av;
1.53 kristaps 1667: struct mdoc_arg *arg;
1668: char *p;
1669: enum mdoct ntok;
1.1 kristaps 1670:
1671: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1672:
1.32 kristaps 1673: /* Parse macro arguments. */
1.1 kristaps 1674:
1.32 kristaps 1675: for (arg = NULL; ; ) {
1.1 kristaps 1676: la = *pos;
1.56 kristaps 1677: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1678:
1.56 kristaps 1679: if (ARGV_WORD == av) {
1.1 kristaps 1680: *pos = la;
1681: break;
1682: }
1.56 kristaps 1683: if (ARGV_EOLN == av)
1.1 kristaps 1684: break;
1.56 kristaps 1685: if (ARGV_ARG == av)
1.1 kristaps 1686: continue;
1687:
1688: mdoc_argv_free(arg);
1689: return(0);
1690: }
1691:
1.32 kristaps 1692: /* Open element scope. */
1693:
1694: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1695: return(0);
1696:
1.32 kristaps 1697: /* Parse argument terms. */
1.1 kristaps 1698:
1699: for (;;) {
1700: la = *pos;
1.53 kristaps 1701: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1702:
1.53 kristaps 1703: if (ARGS_ERROR == ac)
1.1 kristaps 1704: return(0);
1.53 kristaps 1705: if (ARGS_EOLN == ac)
1.1 kristaps 1706: break;
1707:
1.53 kristaps 1708: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1709:
1.53 kristaps 1710: if (MDOC_MAX == ntok) {
1711: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1712: return(0);
1.53 kristaps 1713: continue;
1714: }
1.1 kristaps 1715:
1.53 kristaps 1716: if ( ! rew_elem(m, tok))
1.1 kristaps 1717: return(0);
1.82 kristaps 1718: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1719: }
1720:
1.32 kristaps 1721: /* Close out (no delimiters). */
1722:
1723: return(rew_elem(m, tok));
1.1 kristaps 1724: }
1725:
1726:
1727: /* ARGSUSED */
1728: static int
1.41 kristaps 1729: ctx_synopsis(MACRO_PROT_ARGS)
1730: {
1.60 kristaps 1731: int nl;
1732:
1733: nl = MDOC_NEWLINE & m->flags;
1.41 kristaps 1734:
1735: /* If we're not in the SYNOPSIS, go straight to in-line. */
1736: if (SEC_SYNOPSIS != m->lastsec)
1.82 kristaps 1737: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1738:
1739: /* If we're a nested call, same place. */
1.60 kristaps 1740: if ( ! nl)
1.82 kristaps 1741: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1742:
1743: /*
1744: * XXX: this will open a block scope; however, if later we end
1745: * up formatting the block scope, then child nodes will inherit
1746: * the formatting. Be careful.
1747: */
1748:
1.82 kristaps 1749: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.41 kristaps 1750: }
1751:
1752:
1753: /* ARGSUSED */
1754: static int
1.1 kristaps 1755: obsolete(MACRO_PROT_ARGS)
1756: {
1757:
1.68 kristaps 1758: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1759: }
1760:
1761:
1.24 kristaps 1762: /*
1763: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1764: * They're unusual because they're basically free-form text until a
1765: * macro is encountered.
1766: */
1.1 kristaps 1767: static int
1.82 kristaps 1768: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1769: {
1.53 kristaps 1770: int la, pos;
1.75 kristaps 1771: enum margserr ac;
1.53 kristaps 1772: enum mdoct ntok;
1773: char *p;
1.1 kristaps 1774:
1.24 kristaps 1775: for (pos = ppos; ; ) {
1776: la = pos;
1.1 kristaps 1777:
1.75 kristaps 1778: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1779:
1.75 kristaps 1780: if (ARGS_ERROR == ac)
1.24 kristaps 1781: return(0);
1.75 kristaps 1782: if (ARGS_EOLN == ac)
1.24 kristaps 1783: break;
1.1 kristaps 1784:
1.75 kristaps 1785: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1786:
1.53 kristaps 1787: if (MDOC_MAX == ntok) {
1788: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1789: return(0);
1.53 kristaps 1790: continue;
1791: }
1.1 kristaps 1792:
1.82 kristaps 1793: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1794: return(0);
1.53 kristaps 1795: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1796: }
1797:
1798: return(1);
1799: }
1.24 kristaps 1800:
1801:
1.79 kristaps 1802: /* ARGSUSED */
1.75 kristaps 1803: static int
1804: phrase_ta(MACRO_PROT_ARGS)
1805: {
1806: int la;
1807: enum mdoct ntok;
1808: enum margserr ac;
1809: char *p;
1810:
1811: /*
1812: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1813: * it should simply error out with ARGSLOST.
1814: */
1815:
1816: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1817: return(0);
1818: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1819: return(0);
1820:
1821: for (;;) {
1822: la = *pos;
1823: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1824:
1825: if (ARGS_ERROR == ac)
1826: return(0);
1827: if (ARGS_EOLN == ac)
1828: break;
1829:
1830: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1831:
1832: if (MDOC_MAX == ntok) {
1833: if ( ! mdoc_word_alloc(m, line, la, p))
1834: return(0);
1835: continue;
1836: }
1837:
1.82 kristaps 1838: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.75 kristaps 1839: return(0);
1840: return(append_delims(m, line, pos, buf));
1841: }
1842:
1843: return(1);
1844: }
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