Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.56
1.56 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.55 2010/07/16 00:34:33 schwarze Exp $ */
1.1 kristaps 2: /*
1.54 schwarze 3: * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
4: * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.2 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
18: #include <assert.h>
19: #include <ctype.h>
20: #include <stdlib.h>
21: #include <stdio.h>
22: #include <string.h>
1.26 schwarze 23: #include <time.h>
1.1 kristaps 24:
1.44 schwarze 25: #include "mandoc.h"
1.1 kristaps 26: #include "libmdoc.h"
1.39 schwarze 27: #include "libmandoc.h"
1.1 kristaps 28:
1.48 schwarze 29: enum rew { /* see rew_dohalt() */
30: REWIND_NONE,
31: REWIND_THIS,
32: REWIND_MORE,
33: REWIND_LATER,
1.54 schwarze 34: REWIND_ERROR
1.35 schwarze 35: };
1.1 kristaps 36:
1.36 schwarze 37: static int blk_full(MACRO_PROT_ARGS);
38: static int blk_exp_close(MACRO_PROT_ARGS);
39: static int blk_part_exp(MACRO_PROT_ARGS);
40: static int blk_part_imp(MACRO_PROT_ARGS);
41: static int ctx_synopsis(MACRO_PROT_ARGS);
42: static int in_line_eoln(MACRO_PROT_ARGS);
43: static int in_line_argn(MACRO_PROT_ARGS);
44: static int in_line(MACRO_PROT_ARGS);
45: static int obsolete(MACRO_PROT_ARGS);
1.46 schwarze 46: static int phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 47:
48: static int append_delims(struct mdoc *,
49: int, int *, char *);
50: static enum mdoct lookup(enum mdoct, const char *);
51: static enum mdoct lookup_raw(const char *);
1.49 schwarze 52: static int make_pending(struct mdoc_node *, enum mdoct,
1.47 schwarze 53: struct mdoc *, int, int);
1.46 schwarze 54: static int phrase(struct mdoc *, int, int, char *);
1.36 schwarze 55: static enum mdoct rew_alt(enum mdoct);
56: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
57: const struct mdoc_node *);
58: static int rew_elem(struct mdoc *, enum mdoct);
59: static int rew_last(struct mdoc *,
60: const struct mdoc_node *);
61: static int rew_sub(enum mdoc_type, struct mdoc *,
62: enum mdoct, int, int);
1.1 kristaps 63:
64: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.4 schwarze 65: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
1.1 kristaps 66: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
67: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
68: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
69: { blk_full, 0 }, /* Sh */
70: { blk_full, 0 }, /* Ss */
1.16 schwarze 71: { in_line_eoln, 0 }, /* Pp */
1.1 kristaps 72: { blk_part_imp, MDOC_PARSED }, /* D1 */
73: { blk_part_imp, MDOC_PARSED }, /* Dl */
74: { blk_full, MDOC_EXPLICIT }, /* Bd */
75: { blk_exp_close, MDOC_EXPLICIT }, /* Ed */
76: { blk_full, MDOC_EXPLICIT }, /* Bl */
77: { blk_exp_close, MDOC_EXPLICIT }, /* El */
78: { blk_full, MDOC_PARSED }, /* It */
79: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.3 schwarze 80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 81: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.15 schwarze 82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
1.1 kristaps 83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
87: { in_line_eoln, 0 }, /* Ex */
88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
89: { in_line_eoln, 0 }, /* Fd */
90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
1.3 schwarze 92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.11 schwarze 94: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.12 schwarze 96: { blk_full, 0 }, /* Nd */
1.51 schwarze 97: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 98: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
99: { obsolete, 0 }, /* Ot */
100: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
101: { in_line_eoln, 0 }, /* Rv */
102: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
103: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.28 schwarze 104: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
105: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.1 kristaps 106: { in_line_eoln, 0 }, /* %A */
107: { in_line_eoln, 0 }, /* %B */
108: { in_line_eoln, 0 }, /* %D */
109: { in_line_eoln, 0 }, /* %I */
110: { in_line_eoln, 0 }, /* %J */
111: { in_line_eoln, 0 }, /* %N */
112: { in_line_eoln, 0 }, /* %O */
113: { in_line_eoln, 0 }, /* %P */
114: { in_line_eoln, 0 }, /* %R */
115: { in_line_eoln, 0 }, /* %T */
116: { in_line_eoln, 0 }, /* %V */
117: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
118: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
119: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
120: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
121: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
122: { blk_full, MDOC_EXPLICIT }, /* Bf */
123: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
124: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
125: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
126: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
127: { in_line_eoln, 0 }, /* Db */
128: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
129: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
130: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
131: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
132: { blk_exp_close, MDOC_EXPLICIT }, /* Ef */
133: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
134: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
135: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 136: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.1 kristaps 137: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* No */
138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ns */
139: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
141: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.35 schwarze 142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.1 kristaps 143: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
144: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
145: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
146: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
147: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
148: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
149: { blk_exp_close, MDOC_EXPLICIT }, /* Re */
150: { blk_full, MDOC_EXPLICIT }, /* Rs */
151: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
152: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
153: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
154: { in_line_eoln, 0 }, /* Sm */
155: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
156: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
157: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
158: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
159: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
160: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
161: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
162: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
163: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
164: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
165: { blk_full, MDOC_EXPLICIT }, /* Bk */
166: { blk_exp_close, MDOC_EXPLICIT }, /* Ek */
167: { in_line_eoln, 0 }, /* Bt */
168: { in_line_eoln, 0 }, /* Hf */
169: { obsolete, 0 }, /* Fr */
170: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 171: { in_line, 0 }, /* Lb */
1.16 schwarze 172: { in_line_eoln, 0 }, /* Lp */
1.3 schwarze 173: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
174: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
1.1 kristaps 175: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
176: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
177: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
178: { in_line_eoln, 0 }, /* %C */
179: { obsolete, 0 }, /* Es */
180: { obsolete, 0 }, /* En */
181: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
182: { in_line_eoln, 0 }, /* %Q */
1.13 schwarze 183: { in_line_eoln, 0 }, /* br */
184: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 185: { in_line_eoln, 0 }, /* %U */
1.46 schwarze 186: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
1.1 kristaps 187: };
188:
189: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
190:
191:
192: /*
193: * This is called at the end of parsing. It must traverse up the tree,
194: * closing out open [implicit] scopes. Obviously, open explicit scopes
195: * are errors.
196: */
197: int
1.22 schwarze 198: mdoc_macroend(struct mdoc *m)
1.1 kristaps 199: {
200: struct mdoc_node *n;
201:
202: /* Scan for open explicit scopes. */
203:
1.22 schwarze 204: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 205:
1.56 ! schwarze 206: for ( ; n; n = n->parent)
! 207: if (MDOC_BLOCK == n->type &&
! 208: MDOC_EXPLICIT & mdoc_macros[n->tok].flags)
! 209: mdoc_nmsg(m, n, MANDOCERR_SCOPEEXIT);
1.1 kristaps 210:
1.22 schwarze 211: /* Rewind to the first. */
212:
213: return(rew_last(m, m->first));
1.1 kristaps 214: }
215:
1.22 schwarze 216:
217: /*
218: * Look up a macro from within a subsequent context.
219: */
1.36 schwarze 220: static enum mdoct
221: lookup(enum mdoct from, const char *p)
1.21 schwarze 222: {
1.24 schwarze 223: /* FIXME: make -diag lists be un-PARSED. */
1.21 schwarze 224:
225: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
226: return(MDOC_MAX);
1.24 schwarze 227: return(lookup_raw(p));
1.21 schwarze 228: }
229:
230:
1.22 schwarze 231: /*
232: * Lookup a macro following the initial line macro.
233: */
1.36 schwarze 234: static enum mdoct
1.24 schwarze 235: lookup_raw(const char *p)
1.1 kristaps 236: {
1.36 schwarze 237: enum mdoct res;
1.1 kristaps 238:
1.24 schwarze 239: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.21 schwarze 240: return(MDOC_MAX);
241: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 242: return(res);
243: return(MDOC_MAX);
244: }
245:
246:
247: static int
1.22 schwarze 248: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 249: {
250:
251: assert(to);
252: mdoc->next = MDOC_NEXT_SIBLING;
253:
254: /* LINTED */
255: while (mdoc->last != to) {
256: if ( ! mdoc_valid_post(mdoc))
257: return(0);
258: if ( ! mdoc_action_post(mdoc))
259: return(0);
260: mdoc->last = mdoc->last->parent;
261: assert(mdoc->last);
262: }
263:
264: if ( ! mdoc_valid_post(mdoc))
265: return(0);
266: return(mdoc_action_post(mdoc));
267: }
268:
269:
1.22 schwarze 270: /*
1.48 schwarze 271: * For a block closing macro, return the corresponding opening one.
272: * Otherwise, return the macro itself.
1.22 schwarze 273: */
1.34 schwarze 274: static enum mdoct
275: rew_alt(enum mdoct tok)
1.1 kristaps 276: {
277: switch (tok) {
278: case (MDOC_Ac):
279: return(MDOC_Ao);
280: case (MDOC_Bc):
281: return(MDOC_Bo);
282: case (MDOC_Brc):
283: return(MDOC_Bro);
284: case (MDOC_Dc):
285: return(MDOC_Do);
286: case (MDOC_Ec):
287: return(MDOC_Eo);
288: case (MDOC_Ed):
289: return(MDOC_Bd);
290: case (MDOC_Ef):
291: return(MDOC_Bf);
292: case (MDOC_Ek):
293: return(MDOC_Bk);
294: case (MDOC_El):
295: return(MDOC_Bl);
296: case (MDOC_Fc):
297: return(MDOC_Fo);
298: case (MDOC_Oc):
299: return(MDOC_Oo);
300: case (MDOC_Pc):
301: return(MDOC_Po);
302: case (MDOC_Qc):
303: return(MDOC_Qo);
304: case (MDOC_Re):
305: return(MDOC_Rs);
306: case (MDOC_Sc):
307: return(MDOC_So);
308: case (MDOC_Xc):
309: return(MDOC_Xo);
310: default:
1.48 schwarze 311: return(tok);
1.1 kristaps 312: }
313: /* NOTREACHED */
314: }
315:
316:
1.48 schwarze 317: /*
318: * Rewinding to tok, how do we have to handle *p?
319: * REWIND_NONE: *p would delimit tok, but no tok scope is open
320: * inside *p, so there is no need to rewind anything at all.
321: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
322: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
323: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
324: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 325: */
1.35 schwarze 326: static enum rew
1.34 schwarze 327: rew_dohalt(enum mdoct tok, enum mdoc_type type,
328: const struct mdoc_node *p)
1.1 kristaps 329: {
330:
1.50 schwarze 331: /*
332: * No matching token, no delimiting block, no broken block.
333: * This can happen when full implicit macros are called for
334: * the first time but try to rewind their previous
335: * instance anyway.
336: */
1.1 kristaps 337: if (MDOC_ROOT == p->type)
1.48 schwarze 338: return(MDOC_BLOCK == type &&
339: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
340: REWIND_ERROR : REWIND_NONE);
1.50 schwarze 341:
342: /*
343: * When starting to rewind, skip plain text
344: * and nodes that have already been rewound.
345: */
1.48 schwarze 346: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
347: return(REWIND_MORE);
348:
1.50 schwarze 349: /*
350: * The easiest case: Found a matching token.
351: * This applies to both blocks and elements.
352: */
1.48 schwarze 353: tok = rew_alt(tok);
354: if (tok == p->tok)
355: return(p->end ? REWIND_NONE :
356: type == p->type ? REWIND_THIS : REWIND_MORE);
357:
1.50 schwarze 358: /*
359: * While elements do require rewinding for themselves,
360: * they never affect rewinding of other nodes.
361: */
1.48 schwarze 362: if (MDOC_ELEM == p->type)
363: return(REWIND_MORE);
1.1 kristaps 364:
1.50 schwarze 365: /*
366: * Blocks delimited by our target token get REWIND_MORE.
367: * Blocks delimiting our target token get REWIND_NONE.
368: */
1.1 kristaps 369: switch (tok) {
1.48 schwarze 370: case (MDOC_Bl):
371: if (MDOC_It == p->tok)
372: return(REWIND_MORE);
1.1 kristaps 373: break;
374: case (MDOC_It):
375: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.48 schwarze 376: return(REWIND_NONE);
1.1 kristaps 377: break;
1.48 schwarze 378: /*
379: * XXX Badly nested block handling still fails badly
380: * when one block is breaking two blocks of the same type.
381: * This is an incomplete and extremely ugly workaround,
382: * required to let the OpenBSD tree build.
383: */
384: case (MDOC_Oo):
385: if (MDOC_Op == p->tok)
386: return(REWIND_MORE);
1.1 kristaps 387: break;
1.51 schwarze 388: case (MDOC_Nm):
389: return(REWIND_NONE);
1.12 schwarze 390: case (MDOC_Nd):
391: /* FALLTHROUGH */
1.1 kristaps 392: case (MDOC_Ss):
393: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.48 schwarze 394: return(REWIND_NONE);
1.1 kristaps 395: /* FALLTHROUGH */
396: case (MDOC_Sh):
1.48 schwarze 397: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
398: MDOC_Sh == p->tok)
399: return(REWIND_MORE);
1.1 kristaps 400: break;
401: default:
402: break;
403: }
404:
1.50 schwarze 405: /*
406: * Default block rewinding rules.
1.51 schwarze 407: * In particular, always skip block end markers,
408: * and let all blocks rewind Nm children.
1.50 schwarze 409: */
1.54 schwarze 410: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
1.51 schwarze 411: (MDOC_BLOCK == p->type &&
1.50 schwarze 412: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
413: return(REWIND_MORE);
414:
415: /*
416: * Partial blocks allow delayed rewinding by default.
417: */
418: if (&blk_full != mdoc_macros[tok].fp)
419: return (REWIND_LATER);
420:
421: /*
422: * Full blocks can only be rewound when matching
423: * or when there is an explicit rule.
424: */
425: return(REWIND_ERROR);
1.1 kristaps 426: }
427:
428:
429: static int
1.34 schwarze 430: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 431: {
432: struct mdoc_node *n;
433:
434: n = mdoc->last;
435: if (MDOC_ELEM != n->type)
436: n = n->parent;
437: assert(MDOC_ELEM == n->type);
438: assert(tok == n->tok);
439:
440: return(rew_last(mdoc, n));
441: }
442:
443:
1.47 schwarze 444: /*
445: * We are trying to close a block identified by tok,
446: * but the child block *broken is still open.
447: * Thus, postpone closing the tok block
448: * until the rew_sub call closing *broken.
449: */
450: static int
451: make_pending(struct mdoc_node *broken, enum mdoct tok,
452: struct mdoc *m, int line, int ppos)
453: {
454: struct mdoc_node *breaker;
455:
456: /*
457: * Iterate backwards, searching for the block matching tok,
458: * that is, the block breaking the *broken block.
459: */
460: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
461:
462: /*
463: * If the *broken block had already been broken before
464: * and we encounter its breaker, make the tok block
465: * pending on the inner breaker.
466: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
467: * becomes "[A broken=[B [C->B B] tok=A] C]"
468: * and finally "[A [B->A [C->B B] A] C]".
469: */
470: if (breaker == broken->pending) {
471: broken = breaker;
472: continue;
473: }
474:
1.48 schwarze 475: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.47 schwarze 476: continue;
477: if (MDOC_BODY == broken->type)
478: broken = broken->parent;
479:
480: /*
481: * Found the breaker.
482: * If another, outer breaker is already pending on
483: * the *broken block, we must not clobber the link
484: * to the outer breaker, but make it pending on the
485: * new, now inner breaker.
486: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
487: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
488: * and finally "[A [B->A [C->B A] B] C]".
489: */
490: if (broken->pending) {
491: struct mdoc_node *taker;
492:
493: /*
494: * If the breaker had also been broken before,
495: * it cannot take on the outer breaker itself,
496: * but must hand it on to its own breakers.
497: * Graphically, this is the following situation:
498: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
499: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
500: */
501: taker = breaker;
502: while (taker->pending)
503: taker = taker->pending;
504: taker->pending = broken->pending;
505: }
506: broken->pending = breaker;
1.51 schwarze 507: mdoc_vmsg(m, MANDOCERR_SCOPENEST, line, ppos,
508: "%s breaks %s", mdoc_macronames[tok],
509: mdoc_macronames[broken->tok]);
1.47 schwarze 510: return(1);
511: }
512:
513: /*
514: * Found no matching block for tok.
515: * Are you trying to close a block that is not open?
1.48 schwarze 516: * XXX Make this non-fatal.
1.47 schwarze 517: */
518: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE);
519: return(0);
520: }
521:
1.48 schwarze 522:
1.1 kristaps 523: static int
1.22 schwarze 524: rew_sub(enum mdoc_type t, struct mdoc *m,
1.34 schwarze 525: enum mdoct tok, int line, int ppos)
1.1 kristaps 526: {
527: struct mdoc_node *n;
528:
1.48 schwarze 529: n = m->last;
530: while (n) {
531: switch (rew_dohalt(tok, t, n)) {
532: case (REWIND_NONE):
533: return(1);
534: case (REWIND_THIS):
535: break;
536: case (REWIND_MORE):
537: n = n->parent;
538: continue;
539: case (REWIND_LATER):
540: return(make_pending(n, tok, m, line, ppos));
541: case (REWIND_ERROR):
542: /* XXX Make this non-fatal. */
1.51 schwarze 543: mdoc_vmsg(m, MANDOCERR_SCOPEFATAL, line, ppos,
544: "%s cannot break %s", mdoc_macronames[tok],
545: mdoc_macronames[n->tok]);
1.48 schwarze 546: return 0;
1.22 schwarze 547: }
1.48 schwarze 548: break;
1.1 kristaps 549: }
550:
551: assert(n);
1.29 schwarze 552: if ( ! rew_last(m, n))
553: return(0);
554:
555: /*
1.47 schwarze 556: * The current block extends an enclosing block.
557: * Now that the current block ends, close the enclosing block, too.
1.29 schwarze 558: */
1.47 schwarze 559: while (NULL != (n = n->pending)) {
1.29 schwarze 560: if ( ! rew_last(m, n))
561: return(0);
1.47 schwarze 562: if (MDOC_HEAD == n->type &&
563: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.29 schwarze 564: return(0);
565: }
1.54 schwarze 566:
1.29 schwarze 567: return(1);
1.1 kristaps 568: }
569:
570:
571: static int
1.42 schwarze 572: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 573: {
1.42 schwarze 574: int la;
1.36 schwarze 575: enum margserr ac;
1.1 kristaps 576: char *p;
577:
1.42 schwarze 578: if ('\0' == buf[*pos])
1.1 kristaps 579: return(1);
580:
581: for (;;) {
1.42 schwarze 582: la = *pos;
583: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 584:
1.36 schwarze 585: if (ARGS_ERROR == ac)
1.1 kristaps 586: return(0);
1.36 schwarze 587: else if (ARGS_EOLN == ac)
1.1 kristaps 588: break;
1.42 schwarze 589:
1.40 schwarze 590: assert(DELIM_NONE != mdoc_isdelim(p));
1.42 schwarze 591: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 592: return(0);
1.43 schwarze 593:
1.42 schwarze 594: /*
595: * If we encounter end-of-sentence symbols, then trigger
596: * the double-space.
597: *
598: * XXX: it's easy to allow this to propogate outward to
599: * the last symbol, such that `. )' will cause the
600: * correct double-spacing. However, (1) groff isn't
601: * smart enough to do this and (2) it would require
602: * knowing which symbols break this behaviour, for
603: * example, `. ;' shouldn't propogate the double-space.
604: */
1.55 schwarze 605: if (mandoc_eos(p, strlen(p), 0))
1.42 schwarze 606: m->last->flags |= MDOC_EOS;
1.1 kristaps 607: }
608:
609: return(1);
610: }
611:
612:
613: /*
614: * Close out block partial/full explicit.
615: */
616: static int
617: blk_exp_close(MACRO_PROT_ARGS)
618: {
1.47 schwarze 619: struct mdoc_node *body; /* Our own body. */
620: struct mdoc_node *later; /* A sub-block starting later. */
621: struct mdoc_node *n; /* For searching backwards. */
622:
1.37 schwarze 623: int j, lastarg, maxargs, flushed, nl;
1.36 schwarze 624: enum margserr ac;
1.47 schwarze 625: enum mdoct atok, ntok;
1.1 kristaps 626: char *p;
627:
1.37 schwarze 628: nl = MDOC_NEWLINE & m->flags;
629:
1.1 kristaps 630: switch (tok) {
631: case (MDOC_Ec):
632: maxargs = 1;
633: break;
634: default:
635: maxargs = 0;
636: break;
637: }
638:
1.47 schwarze 639: /*
640: * Search backwards for beginnings of blocks,
641: * both of our own and of pending sub-blocks.
642: */
643: atok = rew_alt(tok);
644: body = later = NULL;
645: for (n = m->last; n; n = n->parent) {
646: if (MDOC_VALID & n->flags)
647: continue;
648:
649: /* Remember the start of our own body. */
650: if (MDOC_BODY == n->type && atok == n->tok) {
1.54 schwarze 651: if (ENDBODY_NOT == n->end)
1.47 schwarze 652: body = n;
653: continue;
654: }
655:
1.51 schwarze 656: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.47 schwarze 657: continue;
658: if (atok == n->tok) {
659: assert(body);
660:
661: /*
662: * Found the start of our own block.
663: * When there is no pending sub block,
664: * just proceed to closing out.
665: */
666: if (NULL == later)
667: break;
668:
669: /*
670: * When there is a pending sub block,
671: * postpone closing out the current block
672: * until the rew_sub() closing out the sub-block.
673: */
674: if ( ! make_pending(later, tok, m, line, ppos))
675: return(0);
676:
677: /*
678: * Mark the place where the formatting - but not
679: * the scope - of the current block ends.
680: */
681: if ( ! mdoc_endbody_alloc(m, line, ppos,
682: atok, body, ENDBODY_SPACE))
683: return(0);
684: break;
685: }
686:
687: /*
688: * When finding an open sub block, remember the last
689: * open explicit block, or, in case there are only
690: * implicit ones, the first open implicit block.
691: */
692: if (later &&
693: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
694: continue;
695: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags) {
696: assert( ! (MDOC_ACTED & n->flags));
697: later = n;
698: }
699: }
700:
1.1 kristaps 701: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.44 schwarze 702: /* FIXME: do this in validate */
1.14 schwarze 703: if (buf[*pos])
1.44 schwarze 704: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 705: return(0);
1.14 schwarze 706:
1.22 schwarze 707: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.14 schwarze 708: return(0);
1.22 schwarze 709: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 710: }
711:
1.22 schwarze 712: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 713: return(0);
714:
1.47 schwarze 715: if (NULL == later && maxargs > 0)
1.22 schwarze 716: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 717: return(0);
718:
1.20 schwarze 719: for (flushed = j = 0; ; j++) {
1.1 kristaps 720: lastarg = *pos;
721:
722: if (j == maxargs && ! flushed) {
1.22 schwarze 723: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 724: return(0);
725: flushed = 1;
726: }
727:
1.36 schwarze 728: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 729:
1.36 schwarze 730: if (ARGS_ERROR == ac)
1.1 kristaps 731: return(0);
1.36 schwarze 732: if (ARGS_PUNCT == ac)
1.1 kristaps 733: break;
1.36 schwarze 734: if (ARGS_EOLN == ac)
1.1 kristaps 735: break;
736:
1.36 schwarze 737: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
738:
739: if (MDOC_MAX == ntok) {
740: if ( ! mdoc_word_alloc(m, line, lastarg, p))
1.1 kristaps 741: return(0);
1.36 schwarze 742: continue;
743: }
1.1 kristaps 744:
1.36 schwarze 745: if ( ! flushed) {
746: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
747: return(0);
748: flushed = 1;
749: }
750: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 751: return(0);
1.36 schwarze 752: break;
1.1 kristaps 753: }
754:
1.22 schwarze 755: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 756: return(0);
757:
1.37 schwarze 758: if ( ! nl)
1.1 kristaps 759: return(1);
1.22 schwarze 760: return(append_delims(m, line, pos, buf));
1.1 kristaps 761: }
762:
763:
764: static int
765: in_line(MACRO_PROT_ARGS)
766: {
1.45 schwarze 767: int la, scope, cnt, nc, nl;
1.36 schwarze 768: enum margverr av;
769: enum mdoct ntok;
770: enum margserr ac;
1.40 schwarze 771: enum mdelim d;
1.36 schwarze 772: struct mdoc_arg *arg;
773: char *p;
1.1 kristaps 774:
1.37 schwarze 775: nl = MDOC_NEWLINE & m->flags;
776:
1.1 kristaps 777: /*
778: * Whether we allow ignored elements (those without content,
779: * usually because of reserved words) to squeak by.
780: */
1.32 schwarze 781:
1.1 kristaps 782: switch (tok) {
1.19 schwarze 783: case (MDOC_An):
784: /* FALLTHROUGH */
785: case (MDOC_Ar):
1.1 kristaps 786: /* FALLTHROUGH */
787: case (MDOC_Fl):
788: /* FALLTHROUGH */
1.3 schwarze 789: case (MDOC_Lk):
1.18 schwarze 790: /* FALLTHROUGH */
1.19 schwarze 791: case (MDOC_Nm):
792: /* FALLTHROUGH */
1.18 schwarze 793: case (MDOC_Pa):
1.1 kristaps 794: nc = 1;
795: break;
796: default:
797: nc = 0;
798: break;
799: }
800:
1.20 schwarze 801: for (arg = NULL;; ) {
1.1 kristaps 802: la = *pos;
1.36 schwarze 803: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 804:
1.36 schwarze 805: if (ARGV_WORD == av) {
1.1 kristaps 806: *pos = la;
807: break;
808: }
1.36 schwarze 809: if (ARGV_EOLN == av)
1.1 kristaps 810: break;
1.36 schwarze 811: if (ARGV_ARG == av)
1.1 kristaps 812: continue;
813:
814: mdoc_argv_free(arg);
815: return(0);
816: }
817:
1.45 schwarze 818: for (cnt = scope = 0;; ) {
1.1 kristaps 819: la = *pos;
1.36 schwarze 820: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 821:
1.36 schwarze 822: if (ARGS_ERROR == ac)
1.1 kristaps 823: return(0);
1.36 schwarze 824: if (ARGS_EOLN == ac)
1.1 kristaps 825: break;
1.36 schwarze 826: if (ARGS_PUNCT == ac)
1.1 kristaps 827: break;
828:
1.36 schwarze 829: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 830:
831: /*
832: * In this case, we've located a submacro and must
833: * execute it. Close out scope, if open. If no
834: * elements have been generated, either create one (nc)
835: * or raise a warning.
836: */
837:
1.36 schwarze 838: if (MDOC_MAX != ntok) {
1.45 schwarze 839: if (scope && ! rew_elem(m, tok))
1.1 kristaps 840: return(0);
841: if (nc && 0 == cnt) {
1.22 schwarze 842: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 843: return(0);
1.22 schwarze 844: if ( ! rew_last(m, m->last))
1.3 schwarze 845: return(0);
1.1 kristaps 846: } else if ( ! nc && 0 == cnt) {
847: mdoc_argv_free(arg);
1.44 schwarze 848: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.1 kristaps 849: return(0);
850: }
1.36 schwarze 851: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 852: return(0);
1.37 schwarze 853: if ( ! nl)
1.1 kristaps 854: return(1);
1.22 schwarze 855: return(append_delims(m, line, pos, buf));
1.21 schwarze 856: }
1.1 kristaps 857:
858: /*
859: * Non-quote-enclosed punctuation. Set up our scope, if
860: * a word; rewind the scope, if a delimiter; then append
861: * the word.
862: */
863:
1.40 schwarze 864: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 865:
1.45 schwarze 866: if (DELIM_NONE != d) {
867: /*
868: * If we encounter closing punctuation, no word
869: * has been omitted, no scope is open, and we're
870: * allowed to have an empty element, then start
871: * a new scope. `Ar', `Fl', and `Li', only do
872: * this once per invocation. There may be more
873: * of these (all of them?).
874: */
875: if (0 == cnt && (nc || MDOC_Li == tok) &&
876: DELIM_CLOSE == d && ! scope) {
877: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
878: return(0);
879: if (MDOC_Ar == tok || MDOC_Li == tok ||
880: MDOC_Fl == tok)
881: cnt++;
882: scope = 1;
883: }
884: /*
885: * Close out our scope, if one is open, before
886: * any punctuation.
887: */
888: if (scope && ! rew_elem(m, tok))
1.1 kristaps 889: return(0);
1.45 schwarze 890: scope = 0;
891: } else if ( ! scope) {
1.22 schwarze 892: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 893: return(0);
1.45 schwarze 894: scope = 1;
1.1 kristaps 895: }
896:
1.40 schwarze 897: if (DELIM_NONE == d)
1.1 kristaps 898: cnt++;
1.22 schwarze 899: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 900: return(0);
1.27 schwarze 901:
902: /*
903: * `Fl' macros have their scope re-opened with each new
904: * word so that the `-' can be added to each one without
905: * having to parse out spaces.
906: */
1.45 schwarze 907: if (scope && MDOC_Fl == tok) {
1.27 schwarze 908: if ( ! rew_elem(m, tok))
909: return(0);
1.45 schwarze 910: scope = 0;
1.27 schwarze 911: }
1.1 kristaps 912: }
913:
1.45 schwarze 914: if (scope && ! rew_elem(m, tok))
1.1 kristaps 915: return(0);
916:
917: /*
918: * If no elements have been collected and we're allowed to have
919: * empties (nc), open a scope and close it out. Otherwise,
920: * raise a warning.
921: */
1.32 schwarze 922:
1.1 kristaps 923: if (nc && 0 == cnt) {
1.22 schwarze 924: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 925: return(0);
1.22 schwarze 926: if ( ! rew_last(m, m->last))
1.3 schwarze 927: return(0);
928: } else if ( ! nc && 0 == cnt) {
1.1 kristaps 929: mdoc_argv_free(arg);
1.44 schwarze 930: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.1 kristaps 931: return(0);
932: }
933:
1.37 schwarze 934: if ( ! nl)
1.1 kristaps 935: return(1);
1.22 schwarze 936: return(append_delims(m, line, pos, buf));
1.1 kristaps 937: }
938:
939:
940: static int
941: blk_full(MACRO_PROT_ARGS)
942: {
1.43 schwarze 943: int la, nl;
1.1 kristaps 944: struct mdoc_arg *arg;
1.32 schwarze 945: struct mdoc_node *head; /* save of head macro */
1.34 schwarze 946: struct mdoc_node *body; /* save of body macro */
1.32 schwarze 947: struct mdoc_node *n;
1.46 schwarze 948: enum mdoc_type mtt;
1.36 schwarze 949: enum mdoct ntok;
1.37 schwarze 950: enum margserr ac, lac;
1.36 schwarze 951: enum margverr av;
1.1 kristaps 952: char *p;
953:
1.43 schwarze 954: nl = MDOC_NEWLINE & m->flags;
955:
1.32 schwarze 956: /* Close out prior implicit scope. */
1.12 schwarze 957:
1.1 kristaps 958: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.22 schwarze 959: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 960: return(0);
1.22 schwarze 961: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 962: return(0);
963: }
964:
1.32 schwarze 965: /*
966: * This routine accomodates implicitly- and explicitly-scoped
967: * macro openings. Implicit ones first close out prior scope
968: * (seen above). Delay opening the head until necessary to
969: * allow leading punctuation to print. Special consideration
970: * for `It -column', which has phrase-part syntax instead of
971: * regular child nodes.
972: */
973:
1.1 kristaps 974: for (arg = NULL;; ) {
1.32 schwarze 975: la = *pos;
1.36 schwarze 976: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 977:
1.36 schwarze 978: if (ARGV_WORD == av) {
1.32 schwarze 979: *pos = la;
1.1 kristaps 980: break;
981: }
982:
1.36 schwarze 983: if (ARGV_EOLN == av)
1.1 kristaps 984: break;
1.36 schwarze 985: if (ARGV_ARG == av)
1.1 kristaps 986: continue;
987:
988: mdoc_argv_free(arg);
989: return(0);
990: }
991:
1.22 schwarze 992: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 993: return(0);
994:
1.34 schwarze 995: head = body = NULL;
1.1 kristaps 996:
1.32 schwarze 997: /*
998: * The `Nd' macro has all arguments in its body: it's a hybrid
999: * of block partial-explicit and full-implicit. Stupid.
1000: */
1.12 schwarze 1001:
1.32 schwarze 1002: if (MDOC_Nd == tok) {
1003: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1004: return(0);
1005: head = m->last;
1.22 schwarze 1006: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.12 schwarze 1007: return(0);
1.22 schwarze 1008: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.12 schwarze 1009: return(0);
1.34 schwarze 1010: body = m->last;
1.12 schwarze 1011: }
1012:
1.37 schwarze 1013: ac = ARGS_ERROR;
1014:
1.41 schwarze 1015: for ( ; ; ) {
1.32 schwarze 1016: la = *pos;
1.46 schwarze 1017: /* Initialise last-phrase-type with ARGS_PEND. */
1018: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.36 schwarze 1019: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.52 schwarze 1020:
1021: if (ARGS_PUNCT == ac)
1022: break;
1.1 kristaps 1023:
1.36 schwarze 1024: if (ARGS_ERROR == ac)
1.1 kristaps 1025: return(0);
1.46 schwarze 1026:
1027: if (ARGS_EOLN == ac) {
1028: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1029: break;
1030: /*
1031: * This is necessary: if the last token on a
1032: * line is a `Ta' or tab, then we'll get
1033: * ARGS_EOLN, so we must be smart enough to
1034: * reopen our scope if the last parse was a
1035: * phrase or partial phrase.
1036: */
1037: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1038: return(0);
1039: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1040: return(0);
1041: body = m->last;
1.1 kristaps 1042: break;
1.41 schwarze 1043: }
1044:
1.46 schwarze 1045: /*
1046: * Emit leading punctuation (i.e., punctuation before
1047: * the MDOC_HEAD) for non-phrase types.
1048: */
1.32 schwarze 1049:
1.37 schwarze 1050: if (NULL == head &&
1.46 schwarze 1051: ARGS_PEND != ac &&
1.37 schwarze 1052: ARGS_PHRASE != ac &&
1.36 schwarze 1053: ARGS_PPHRASE != ac &&
1054: ARGS_QWORD != ac &&
1.40 schwarze 1055: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1056: if ( ! mdoc_word_alloc(m, line, la, p))
1057: return(0);
1058: continue;
1059: }
1060:
1.46 schwarze 1061: /* Open a head if one hasn't been opened. */
1.32 schwarze 1062:
1.46 schwarze 1063: if (NULL == head) {
1.32 schwarze 1064: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1065: return(0);
1.29 schwarze 1066: head = m->last;
1.32 schwarze 1067: }
1068:
1.46 schwarze 1069: if (ARGS_PHRASE == ac ||
1070: ARGS_PEND == ac ||
1071: ARGS_PPHRASE == ac) {
1072: /*
1073: * If we haven't opened a body yet, rewind the
1074: * head; if we have, rewind that instead.
1075: */
1076:
1077: mtt = body ? MDOC_BODY : MDOC_HEAD;
1078: if ( ! rew_sub(mtt, m, tok, line, ppos))
1079: return(0);
1080:
1081: /* Then allocate our body context. */
1082:
1083: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1084: return(0);
1085: body = m->last;
1086:
1087: /*
1088: * Process phrases: set whether we're in a
1089: * partial-phrase (this effects line handling)
1090: * then call down into the phrase parser.
1091: */
1092:
1.41 schwarze 1093: if (ARGS_PPHRASE == ac)
1094: m->flags |= MDOC_PPHRASE;
1.46 schwarze 1095: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1096: m->flags |= MDOC_PPHRASE;
1097:
1098: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1099: return(0);
1.46 schwarze 1100:
1.41 schwarze 1101: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1102: continue;
1103: }
1104:
1.36 schwarze 1105: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1106:
1107: if (MDOC_MAX == ntok) {
1108: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1109: return(0);
1.36 schwarze 1110: continue;
1.32 schwarze 1111: }
1.36 schwarze 1112:
1113: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1114: return(0);
1.36 schwarze 1115: break;
1.32 schwarze 1116: }
1.1 kristaps 1117:
1.32 schwarze 1118: if (NULL == head) {
1119: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1120: return(0);
1.32 schwarze 1121: head = m->last;
1.1 kristaps 1122: }
1123:
1.43 schwarze 1124: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1125: return(0);
1.12 schwarze 1126:
1.34 schwarze 1127: /* If we've already opened our body, exit now. */
1.32 schwarze 1128:
1.34 schwarze 1129: if (NULL != body)
1.46 schwarze 1130: goto out;
1.29 schwarze 1131:
1132: /*
1.34 schwarze 1133: * If there is an open (i.e., unvalidated) sub-block requiring
1134: * explicit close-out, postpone switching the current block from
1135: * head to body until the rew_sub() call closing out that
1136: * sub-block.
1.29 schwarze 1137: */
1138: for (n = m->last; n && n != head; n = n->parent) {
1.34 schwarze 1139: if (MDOC_BLOCK == n->type &&
1140: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1141: ! (MDOC_VALID & n->flags)) {
1142: assert( ! (MDOC_ACTED & n->flags));
1.29 schwarze 1143: n->pending = head;
1144: return(1);
1145: }
1146: }
1.54 schwarze 1147:
1.32 schwarze 1148: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1149:
1.22 schwarze 1150: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1151: return(0);
1.22 schwarze 1152: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1153: return(0);
1154:
1.46 schwarze 1155: out:
1156: if ( ! (MDOC_FREECOL & m->flags))
1157: return(1);
1158:
1159: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1160: return(0);
1161: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1162: return(0);
1163:
1164: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1165: return(1);
1166: }
1167:
1168:
1169: static int
1170: blk_part_imp(MACRO_PROT_ARGS)
1171: {
1.43 schwarze 1172: int la, nl;
1.36 schwarze 1173: enum mdoct ntok;
1174: enum margserr ac;
1.1 kristaps 1175: char *p;
1.32 schwarze 1176: struct mdoc_node *blk; /* saved block context */
1177: struct mdoc_node *body; /* saved body context */
1178: struct mdoc_node *n;
1.1 kristaps 1179:
1.43 schwarze 1180: nl = MDOC_NEWLINE & m->flags;
1181:
1.32 schwarze 1182: /*
1183: * A macro that spans to the end of the line. This is generally
1184: * (but not necessarily) called as the first macro. The block
1185: * has a head as the immediate child, which is always empty,
1186: * followed by zero or more opening punctuation nodes, then the
1187: * body (which may be empty, depending on the macro), then zero
1188: * or more closing punctuation nodes.
1189: */
1.22 schwarze 1190:
1191: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1192: return(0);
1.32 schwarze 1193:
1.22 schwarze 1194: blk = m->last;
1.32 schwarze 1195:
1.22 schwarze 1196: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1197: return(0);
1.22 schwarze 1198: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1199: return(0);
1200:
1.32 schwarze 1201: /*
1202: * Open the body scope "on-demand", that is, after we've
1203: * processed all our the leading delimiters (open parenthesis,
1204: * etc.).
1205: */
1.1 kristaps 1206:
1.32 schwarze 1207: for (body = NULL; ; ) {
1.22 schwarze 1208: la = *pos;
1.36 schwarze 1209: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.32 schwarze 1210:
1.36 schwarze 1211: if (ARGS_ERROR == ac)
1.1 kristaps 1212: return(0);
1.36 schwarze 1213: if (ARGS_EOLN == ac)
1.32 schwarze 1214: break;
1.36 schwarze 1215: if (ARGS_PUNCT == ac)
1.1 kristaps 1216: break;
1217:
1.36 schwarze 1218: if (NULL == body && ARGS_QWORD != ac &&
1.40 schwarze 1219: DELIM_OPEN == mdoc_isdelim(p)) {
1.22 schwarze 1220: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1221: return(0);
1222: continue;
1223: }
1224:
1.32 schwarze 1225: if (NULL == body) {
1226: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1227: return(0);
1228: body = m->last;
1229: }
1230:
1.36 schwarze 1231: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1232:
1233: if (MDOC_MAX == ntok) {
1234: if ( ! mdoc_word_alloc(m, line, la, p))
1.32 schwarze 1235: return(0);
1.36 schwarze 1236: continue;
1237: }
1.32 schwarze 1238:
1.36 schwarze 1239: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1240: return(0);
1.36 schwarze 1241: break;
1.32 schwarze 1242: }
1243:
1244: /* Clean-ups to leave in a consistent state. */
1245:
1246: if (NULL == body) {
1247: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1248: return(0);
1.32 schwarze 1249: body = m->last;
1.39 schwarze 1250: }
1251:
1252: for (n = body->child; n && n->next; n = n->next)
1253: /* Do nothing. */ ;
1254:
1255: /*
1256: * End of sentence spacing: if the last node is a text node and
1257: * has a trailing period, then mark it as being end-of-sentence.
1258: */
1259:
1260: if (n && MDOC_TEXT == n->type && n->string)
1.55 schwarze 1261: if (mandoc_eos(n->string, strlen(n->string), 1))
1.39 schwarze 1262: n->flags |= MDOC_EOS;
1263:
1264: /* Up-propogate the end-of-space flag. */
1265:
1266: if (n && (MDOC_EOS & n->flags)) {
1267: body->flags |= MDOC_EOS;
1268: body->parent->flags |= MDOC_EOS;
1.1 kristaps 1269: }
1270:
1.47 schwarze 1271: /*
1272: * If there is an open sub-block requiring explicit close-out,
1273: * postpone closing out the current block
1274: * until the rew_sub() call closing out the sub-block.
1275: */
1276: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1277: if (MDOC_BLOCK == n->type &&
1278: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1279: ! (MDOC_VALID & n->flags)) {
1280: assert( ! (MDOC_ACTED & n->flags));
1281: if ( ! make_pending(n, tok, m, line, ppos))
1282: return(0);
1283: if ( ! mdoc_endbody_alloc(m, line, ppos,
1284: tok, body, ENDBODY_NOSPACE))
1285: return(0);
1286: return(1);
1287: }
1288: }
1289:
1.22 schwarze 1290: /*
1291: * If we can't rewind to our body, then our scope has already
1292: * been closed by another macro (like `Oc' closing `Op'). This
1293: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.34 schwarze 1294: * crufty use of `Op' breakage.
1.1 kristaps 1295: */
1.51 schwarze 1296: if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPENEST,
1297: line, ppos, "%s broken", mdoc_macronames[tok]))
1.22 schwarze 1298: return(0);
1.32 schwarze 1299:
1.47 schwarze 1300: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 schwarze 1301: return(0);
1.1 kristaps 1302:
1.22 schwarze 1303: /* Standard appending of delimiters. */
1.1 kristaps 1304:
1.43 schwarze 1305: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1306: return(0);
1307:
1.22 schwarze 1308: /* Rewind scope, if applicable. */
1.1 kristaps 1309:
1.47 schwarze 1310: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1311: return(0);
1312:
1313: return(1);
1314: }
1315:
1316:
1317: static int
1318: blk_part_exp(MACRO_PROT_ARGS)
1319: {
1.37 schwarze 1320: int la, nl;
1.36 schwarze 1321: enum margserr ac;
1.32 schwarze 1322: struct mdoc_node *head; /* keep track of head */
1323: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1324: char *p;
1.36 schwarze 1325: enum mdoct ntok;
1.1 kristaps 1326:
1.37 schwarze 1327: nl = MDOC_NEWLINE & m->flags;
1328:
1.32 schwarze 1329: /*
1330: * The opening of an explicit macro having zero or more leading
1331: * punctuation nodes; a head with optional single element (the
1332: * case of `Eo'); and a body that may be empty.
1333: */
1.22 schwarze 1334:
1335: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1336: return(0);
1.22 schwarze 1337:
1.32 schwarze 1338: for (head = body = NULL; ; ) {
1.22 schwarze 1339: la = *pos;
1.36 schwarze 1340: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1341:
1.36 schwarze 1342: if (ARGS_ERROR == ac)
1.1 kristaps 1343: return(0);
1.36 schwarze 1344: if (ARGS_PUNCT == ac)
1.1 kristaps 1345: break;
1.36 schwarze 1346: if (ARGS_EOLN == ac)
1.1 kristaps 1347: break;
1348:
1.32 schwarze 1349: /* Flush out leading punctuation. */
1350:
1.36 schwarze 1351: if (NULL == head && ARGS_QWORD != ac &&
1.40 schwarze 1352: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1353: assert(NULL == body);
1354: if ( ! mdoc_word_alloc(m, line, la, p))
1355: return(0);
1356: continue;
1357: }
1358:
1359: if (NULL == head) {
1360: assert(NULL == body);
1361: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1362: return(0);
1.32 schwarze 1363: head = m->last;
1.1 kristaps 1364: }
1365:
1.32 schwarze 1366: /*
1367: * `Eo' gobbles any data into the head, but most other
1368: * macros just immediately close out and begin the body.
1369: */
1370:
1371: if (NULL == body) {
1372: assert(head);
1373: /* No check whether it's a macro! */
1374: if (MDOC_Eo == tok)
1375: if ( ! mdoc_word_alloc(m, line, la, p))
1376: return(0);
1377:
1.22 schwarze 1378: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1379: return(0);
1.22 schwarze 1380: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1381: return(0);
1.32 schwarze 1382: body = m->last;
1383:
1384: if (MDOC_Eo == tok)
1385: continue;
1386: }
1387:
1388: assert(NULL != head && NULL != body);
1389:
1.36 schwarze 1390: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1391:
1392: if (MDOC_MAX == ntok) {
1393: if ( ! mdoc_word_alloc(m, line, la, p))
1.32 schwarze 1394: return(0);
1.36 schwarze 1395: continue;
1.1 kristaps 1396: }
1.32 schwarze 1397:
1.36 schwarze 1398: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1399: return(0);
1.36 schwarze 1400: break;
1.1 kristaps 1401: }
1402:
1.32 schwarze 1403: /* Clean-up to leave in a consistent state. */
1404:
1405: if (NULL == head) {
1406: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1407: return(0);
1408: head = m->last;
1409: }
1.22 schwarze 1410:
1.32 schwarze 1411: if (NULL == body) {
1.22 schwarze 1412: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1413: return(0);
1.22 schwarze 1414: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1415: return(0);
1.32 schwarze 1416: body = m->last;
1.1 kristaps 1417: }
1418:
1.22 schwarze 1419: /* Standard appending of delimiters. */
1420:
1.37 schwarze 1421: if ( ! nl)
1.1 kristaps 1422: return(1);
1.22 schwarze 1423: return(append_delims(m, line, pos, buf));
1.1 kristaps 1424: }
1425:
1426:
1.37 schwarze 1427: /* ARGSUSED */
1.1 kristaps 1428: static int
1429: in_line_argn(MACRO_PROT_ARGS)
1430: {
1.37 schwarze 1431: int la, flushed, j, maxargs, nl;
1.36 schwarze 1432: enum margserr ac;
1433: enum margverr av;
1434: struct mdoc_arg *arg;
1435: char *p;
1436: enum mdoct ntok;
1.1 kristaps 1437:
1.37 schwarze 1438: nl = MDOC_NEWLINE & m->flags;
1439:
1.32 schwarze 1440: /*
1441: * A line macro that has a fixed number of arguments (maxargs).
1442: * Only open the scope once the first non-leading-punctuation is
1443: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1444: * keep it open until the maximum number of arguments are
1445: * exhausted.
1446: */
1.1 kristaps 1447:
1448: switch (tok) {
1449: case (MDOC_Ap):
1450: /* FALLTHROUGH */
1451: case (MDOC_No):
1452: /* FALLTHROUGH */
1453: case (MDOC_Ns):
1454: /* FALLTHROUGH */
1455: case (MDOC_Ux):
1456: maxargs = 0;
1457: break;
1.28 schwarze 1458: case (MDOC_Xr):
1459: maxargs = 2;
1460: break;
1.1 kristaps 1461: default:
1462: maxargs = 1;
1463: break;
1464: }
1465:
1.32 schwarze 1466: for (arg = NULL; ; ) {
1.22 schwarze 1467: la = *pos;
1.36 schwarze 1468: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1469:
1.36 schwarze 1470: if (ARGV_WORD == av) {
1.22 schwarze 1471: *pos = la;
1.1 kristaps 1472: break;
1473: }
1474:
1.36 schwarze 1475: if (ARGV_EOLN == av)
1.1 kristaps 1476: break;
1.36 schwarze 1477: if (ARGV_ARG == av)
1.1 kristaps 1478: continue;
1479:
1480: mdoc_argv_free(arg);
1481: return(0);
1482: }
1483:
1.32 schwarze 1484: for (flushed = j = 0; ; ) {
1.22 schwarze 1485: la = *pos;
1.36 schwarze 1486: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1487:
1.36 schwarze 1488: if (ARGS_ERROR == ac)
1.1 kristaps 1489: return(0);
1.36 schwarze 1490: if (ARGS_PUNCT == ac)
1.1 kristaps 1491: break;
1.36 schwarze 1492: if (ARGS_EOLN == ac)
1.1 kristaps 1493: break;
1494:
1.32 schwarze 1495: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1496: ARGS_QWORD != ac &&
1.40 schwarze 1497: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1498: if ( ! mdoc_word_alloc(m, line, la, p))
1499: return(0);
1500: continue;
1.40 schwarze 1501: } else if (0 == j)
1.32 schwarze 1502: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1503: return(0);
1504:
1505: if (j == maxargs && ! flushed) {
1506: if ( ! rew_elem(m, tok))
1507: return(0);
1508: flushed = 1;
1509: }
1510:
1.36 schwarze 1511: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1512:
1513: if (MDOC_MAX != ntok) {
1.22 schwarze 1514: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1515: return(0);
1516: flushed = 1;
1.36 schwarze 1517: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1518: return(0);
1.32 schwarze 1519: j++;
1.1 kristaps 1520: break;
1521: }
1522:
1523: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1524: ARGS_QWORD != ac &&
1.40 schwarze 1525: ! flushed &&
1526: DELIM_NONE != mdoc_isdelim(p)) {
1.22 schwarze 1527: if ( ! rew_elem(m, tok))
1.1 kristaps 1528: return(0);
1529: flushed = 1;
1530: }
1.28 schwarze 1531:
1532: /*
1533: * XXX: this is a hack to work around groff's ugliness
1534: * as regards `Xr' and extraneous arguments. It should
1535: * ideally be deprecated behaviour, but because this is
1536: * code is no here, it's unlikely to be removed.
1537: */
1538: if (MDOC_Xr == tok && j == maxargs) {
1.32 schwarze 1539: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.28 schwarze 1540: return(0);
1541: if ( ! rew_elem(m, MDOC_Ns))
1542: return(0);
1543: }
1544:
1.22 schwarze 1545: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1546: return(0);
1.32 schwarze 1547: j++;
1.1 kristaps 1548: }
1549:
1.32 schwarze 1550: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1551: return(0);
1552:
1553: /* Close out in a consistent state. */
1.22 schwarze 1554:
1555: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1556: return(0);
1.37 schwarze 1557: if ( ! nl)
1.1 kristaps 1558: return(1);
1.22 schwarze 1559: return(append_delims(m, line, pos, buf));
1.1 kristaps 1560: }
1561:
1562:
1563: static int
1564: in_line_eoln(MACRO_PROT_ARGS)
1565: {
1.36 schwarze 1566: int la;
1567: enum margserr ac;
1568: enum margverr av;
1569: struct mdoc_arg *arg;
1570: char *p;
1571: enum mdoct ntok;
1.1 kristaps 1572:
1573: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1574:
1.53 schwarze 1575: if (tok == MDOC_Pp)
1576: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1577:
1.22 schwarze 1578: /* Parse macro arguments. */
1.1 kristaps 1579:
1.22 schwarze 1580: for (arg = NULL; ; ) {
1.1 kristaps 1581: la = *pos;
1.36 schwarze 1582: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1583:
1.36 schwarze 1584: if (ARGV_WORD == av) {
1.1 kristaps 1585: *pos = la;
1586: break;
1587: }
1.36 schwarze 1588: if (ARGV_EOLN == av)
1.1 kristaps 1589: break;
1.36 schwarze 1590: if (ARGV_ARG == av)
1.1 kristaps 1591: continue;
1592:
1593: mdoc_argv_free(arg);
1594: return(0);
1595: }
1596:
1.22 schwarze 1597: /* Open element scope. */
1598:
1599: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1600: return(0);
1601:
1.22 schwarze 1602: /* Parse argument terms. */
1.1 kristaps 1603:
1604: for (;;) {
1605: la = *pos;
1.36 schwarze 1606: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1607:
1.36 schwarze 1608: if (ARGS_ERROR == ac)
1.1 kristaps 1609: return(0);
1.36 schwarze 1610: if (ARGS_EOLN == ac)
1.1 kristaps 1611: break;
1612:
1.36 schwarze 1613: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1614:
1.36 schwarze 1615: if (MDOC_MAX == ntok) {
1616: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1617: return(0);
1.36 schwarze 1618: continue;
1619: }
1.1 kristaps 1620:
1.36 schwarze 1621: if ( ! rew_elem(m, tok))
1.1 kristaps 1622: return(0);
1.36 schwarze 1623: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1624: }
1625:
1.22 schwarze 1626: /* Close out (no delimiters). */
1627:
1628: return(rew_elem(m, tok));
1.28 schwarze 1629: }
1630:
1631:
1632: /* ARGSUSED */
1633: static int
1634: ctx_synopsis(MACRO_PROT_ARGS)
1635: {
1.37 schwarze 1636: int nl;
1637:
1638: nl = MDOC_NEWLINE & m->flags;
1.28 schwarze 1639:
1640: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.53 schwarze 1641: if ( ! (MDOC_SYNOPSIS & m->flags))
1.28 schwarze 1642: return(in_line(m, tok, line, ppos, pos, buf));
1643:
1644: /* If we're a nested call, same place. */
1.37 schwarze 1645: if ( ! nl)
1.28 schwarze 1646: return(in_line(m, tok, line, ppos, pos, buf));
1647:
1648: /*
1649: * XXX: this will open a block scope; however, if later we end
1650: * up formatting the block scope, then child nodes will inherit
1651: * the formatting. Be careful.
1652: */
1.51 schwarze 1653: if (MDOC_Nm == tok)
1654: return(blk_full(m, tok, line, ppos, pos, buf));
1655: assert(MDOC_Vt == tok);
1.28 schwarze 1656: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.1 kristaps 1657: }
1658:
1659:
1660: /* ARGSUSED */
1661: static int
1662: obsolete(MACRO_PROT_ARGS)
1663: {
1664:
1.44 schwarze 1665: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1666: }
1667:
1668:
1.17 schwarze 1669: /*
1670: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1671: * They're unusual because they're basically free-form text until a
1672: * macro is encountered.
1673: */
1.1 kristaps 1674: static int
1.46 schwarze 1675: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1676: {
1.36 schwarze 1677: int la, pos;
1.46 schwarze 1678: enum margserr ac;
1.36 schwarze 1679: enum mdoct ntok;
1680: char *p;
1.1 kristaps 1681:
1.17 schwarze 1682: for (pos = ppos; ; ) {
1683: la = pos;
1.1 kristaps 1684:
1.46 schwarze 1685: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1686:
1.46 schwarze 1687: if (ARGS_ERROR == ac)
1.17 schwarze 1688: return(0);
1.46 schwarze 1689: if (ARGS_EOLN == ac)
1.17 schwarze 1690: break;
1.1 kristaps 1691:
1.46 schwarze 1692: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1693:
1.36 schwarze 1694: if (MDOC_MAX == ntok) {
1695: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1696: return(0);
1.36 schwarze 1697: continue;
1698: }
1.1 kristaps 1699:
1.36 schwarze 1700: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1701: return(0);
1.36 schwarze 1702: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1703: }
1704:
1705: return(1);
1706: }
1.17 schwarze 1707:
1708:
1.46 schwarze 1709: /* ARGSUSED */
1710: static int
1711: phrase_ta(MACRO_PROT_ARGS)
1712: {
1713: int la;
1714: enum mdoct ntok;
1715: enum margserr ac;
1716: char *p;
1717:
1718: /*
1719: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1720: * it should simply error out with ARGSLOST.
1721: */
1722:
1723: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1724: return(0);
1725: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1726: return(0);
1727:
1728: for (;;) {
1729: la = *pos;
1730: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1731:
1732: if (ARGS_ERROR == ac)
1733: return(0);
1734: if (ARGS_EOLN == ac)
1735: break;
1736:
1737: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1738:
1739: if (MDOC_MAX == ntok) {
1740: if ( ! mdoc_word_alloc(m, line, la, p))
1741: return(0);
1742: continue;
1743: }
1744:
1745: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1746: return(0);
1747: return(append_delims(m, line, pos, buf));
1748: }
1749:
1750: return(1);
1751: }
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