Annotation of mandoc/mdoc_macro.c, Revision 1.86
1.86 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.85 2010/06/29 19:45:06 schwarze Exp $ */
1.1 kristaps 2: /*
1.80 kristaps 3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 8: *
1.8 kristaps 9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 16: */
1.40 kristaps 17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.1 kristaps 21: #include <assert.h>
22: #include <ctype.h>
23: #include <stdlib.h>
24: #include <stdio.h>
25: #include <string.h>
1.38 kristaps 26: #include <time.h>
1.1 kristaps 27:
1.68 kristaps 28: #include "mandoc.h"
1.1 kristaps 29: #include "libmdoc.h"
1.64 kristaps 30: #include "libmandoc.h"
1.1 kristaps 31:
1.84 schwarze 32: enum rew { /* see rew_dohalt() */
33: REWIND_NONE,
34: REWIND_THIS,
35: REWIND_MORE,
36: REWIND_LATER,
37: REWIND_ERROR,
1.51 kristaps 38: };
1.1 kristaps 39:
1.53 kristaps 40: static int blk_full(MACRO_PROT_ARGS);
41: static int blk_exp_close(MACRO_PROT_ARGS);
42: static int blk_part_exp(MACRO_PROT_ARGS);
43: static int blk_part_imp(MACRO_PROT_ARGS);
44: static int ctx_synopsis(MACRO_PROT_ARGS);
45: static int in_line_eoln(MACRO_PROT_ARGS);
46: static int in_line_argn(MACRO_PROT_ARGS);
47: static int in_line(MACRO_PROT_ARGS);
48: static int obsolete(MACRO_PROT_ARGS);
1.75 kristaps 49: static int phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 50:
51: static int append_delims(struct mdoc *,
52: int, int *, char *);
1.58 kristaps 53: static enum mdoct lookup(enum mdoct, const char *);
1.53 kristaps 54: static enum mdoct lookup_raw(const char *);
1.85 schwarze 55: static int make_pending(struct mdoc_node *, enum mdoct,
1.83 schwarze 56: struct mdoc *, int, int);
1.82 kristaps 57: static int phrase(struct mdoc *, int, int, char *);
1.53 kristaps 58: static enum mdoct rew_alt(enum mdoct);
59: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
60: const struct mdoc_node *);
61: static int rew_elem(struct mdoc *, enum mdoct);
62: static int rew_last(struct mdoc *,
63: const struct mdoc_node *);
64: static int rew_sub(enum mdoc_type, struct mdoc *,
65: enum mdoct, int, int);
1.1 kristaps 66:
67: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.13 kristaps 68: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
1.1 kristaps 69: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
70: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
71: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
72: { blk_full, 0 }, /* Sh */
73: { blk_full, 0 }, /* Ss */
1.21 kristaps 74: { in_line_eoln, 0 }, /* Pp */
1.1 kristaps 75: { blk_part_imp, MDOC_PARSED }, /* D1 */
76: { blk_part_imp, MDOC_PARSED }, /* Dl */
77: { blk_full, MDOC_EXPLICIT }, /* Bd */
78: { blk_exp_close, MDOC_EXPLICIT }, /* Ed */
79: { blk_full, MDOC_EXPLICIT }, /* Bl */
80: { blk_exp_close, MDOC_EXPLICIT }, /* El */
81: { blk_full, MDOC_PARSED }, /* It */
82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.10 kristaps 83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.23 kristaps 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
1.1 kristaps 86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
90: { in_line_eoln, 0 }, /* Ex */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
92: { in_line_eoln, 0 }, /* Fd */
93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
1.11 kristaps 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.18 kristaps 97: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.19 kristaps 99: { blk_full, 0 }, /* Nd */
1.1 kristaps 100: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
101: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
102: { obsolete, 0 }, /* Ot */
103: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
104: { in_line_eoln, 0 }, /* Rv */
105: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
106: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.41 kristaps 107: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 108: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.1 kristaps 109: { in_line_eoln, 0 }, /* %A */
110: { in_line_eoln, 0 }, /* %B */
111: { in_line_eoln, 0 }, /* %D */
112: { in_line_eoln, 0 }, /* %I */
113: { in_line_eoln, 0 }, /* %J */
114: { in_line_eoln, 0 }, /* %N */
115: { in_line_eoln, 0 }, /* %O */
116: { in_line_eoln, 0 }, /* %P */
117: { in_line_eoln, 0 }, /* %R */
118: { in_line_eoln, 0 }, /* %T */
119: { in_line_eoln, 0 }, /* %V */
120: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
121: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
122: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
123: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
124: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
125: { blk_full, MDOC_EXPLICIT }, /* Bf */
126: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
127: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
128: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
129: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
130: { in_line_eoln, 0 }, /* Db */
131: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
132: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
133: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
134: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
135: { blk_exp_close, MDOC_EXPLICIT }, /* Ef */
136: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
137: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 139: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.1 kristaps 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* No */
141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ns */
142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
144: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.52 kristaps 145: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.1 kristaps 146: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
147: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
148: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
149: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
150: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
151: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
152: { blk_exp_close, MDOC_EXPLICIT }, /* Re */
153: { blk_full, MDOC_EXPLICIT }, /* Rs */
154: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
155: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
156: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
157: { in_line_eoln, 0 }, /* Sm */
158: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
159: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
160: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
161: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
162: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
163: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
164: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
165: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
166: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
167: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
168: { blk_full, MDOC_EXPLICIT }, /* Bk */
169: { blk_exp_close, MDOC_EXPLICIT }, /* Ek */
170: { in_line_eoln, 0 }, /* Bt */
171: { in_line_eoln, 0 }, /* Hf */
172: { obsolete, 0 }, /* Fr */
173: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 174: { in_line, 0 }, /* Lb */
1.21 kristaps 175: { in_line_eoln, 0 }, /* Lp */
1.12 kristaps 176: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
177: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
1.1 kristaps 178: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
179: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
180: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
181: { in_line_eoln, 0 }, /* %C */
182: { obsolete, 0 }, /* Es */
183: { obsolete, 0 }, /* En */
184: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
185: { in_line_eoln, 0 }, /* %Q */
1.20 kristaps 186: { in_line_eoln, 0 }, /* br */
187: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 188: { in_line_eoln, 0 }, /* %U */
1.75 kristaps 189: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
1.1 kristaps 190: };
191:
192: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
193:
194:
195: /*
196: * This is called at the end of parsing. It must traverse up the tree,
197: * closing out open [implicit] scopes. Obviously, open explicit scopes
198: * are errors.
199: */
200: int
1.32 kristaps 201: mdoc_macroend(struct mdoc *m)
1.1 kristaps 202: {
203: struct mdoc_node *n;
204:
205: /* Scan for open explicit scopes. */
206:
1.32 kristaps 207: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 208:
209: for ( ; n; n = n->parent) {
210: if (MDOC_BLOCK != n->type)
211: continue;
212: if ( ! (MDOC_EXPLICIT & mdoc_macros[n->tok].flags))
213: continue;
1.68 kristaps 214: mdoc_nmsg(m, n, MANDOCERR_SYNTSCOPE);
215: return(0);
1.1 kristaps 216: }
217:
1.32 kristaps 218: /* Rewind to the first. */
219:
220: return(rew_last(m, m->first));
1.1 kristaps 221: }
222:
1.32 kristaps 223:
224: /*
225: * Look up a macro from within a subsequent context.
226: */
1.53 kristaps 227: static enum mdoct
1.58 kristaps 228: lookup(enum mdoct from, const char *p)
1.28 kristaps 229: {
1.36 kristaps 230: /* FIXME: make -diag lists be un-PARSED. */
1.28 kristaps 231:
232: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
233: return(MDOC_MAX);
1.35 kristaps 234: return(lookup_raw(p));
1.28 kristaps 235: }
236:
237:
1.32 kristaps 238: /*
239: * Lookup a macro following the initial line macro.
240: */
1.53 kristaps 241: static enum mdoct
1.35 kristaps 242: lookup_raw(const char *p)
1.1 kristaps 243: {
1.58 kristaps 244: enum mdoct res;
1.1 kristaps 245:
1.34 kristaps 246: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.28 kristaps 247: return(MDOC_MAX);
248: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 249: return(res);
250: return(MDOC_MAX);
251: }
252:
253:
254: static int
1.32 kristaps 255: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 256: {
257:
258: assert(to);
259: mdoc->next = MDOC_NEXT_SIBLING;
260:
261: /* LINTED */
262: while (mdoc->last != to) {
263: if ( ! mdoc_valid_post(mdoc))
264: return(0);
265: if ( ! mdoc_action_post(mdoc))
266: return(0);
267: mdoc->last = mdoc->last->parent;
268: assert(mdoc->last);
269: }
270:
271: if ( ! mdoc_valid_post(mdoc))
272: return(0);
273: return(mdoc_action_post(mdoc));
274: }
275:
276:
1.32 kristaps 277: /*
1.84 schwarze 278: * For a block closing macro, return the corresponding opening one.
279: * Otherwise, return the macro itself.
1.32 kristaps 280: */
1.47 kristaps 281: static enum mdoct
282: rew_alt(enum mdoct tok)
1.1 kristaps 283: {
284: switch (tok) {
285: case (MDOC_Ac):
286: return(MDOC_Ao);
287: case (MDOC_Bc):
288: return(MDOC_Bo);
289: case (MDOC_Brc):
290: return(MDOC_Bro);
291: case (MDOC_Dc):
292: return(MDOC_Do);
293: case (MDOC_Ec):
294: return(MDOC_Eo);
295: case (MDOC_Ed):
296: return(MDOC_Bd);
297: case (MDOC_Ef):
298: return(MDOC_Bf);
299: case (MDOC_Ek):
300: return(MDOC_Bk);
301: case (MDOC_El):
302: return(MDOC_Bl);
303: case (MDOC_Fc):
304: return(MDOC_Fo);
305: case (MDOC_Oc):
306: return(MDOC_Oo);
307: case (MDOC_Pc):
308: return(MDOC_Po);
309: case (MDOC_Qc):
310: return(MDOC_Qo);
311: case (MDOC_Re):
312: return(MDOC_Rs);
313: case (MDOC_Sc):
314: return(MDOC_So);
315: case (MDOC_Xc):
316: return(MDOC_Xo);
317: default:
1.84 schwarze 318: return(tok);
1.1 kristaps 319: }
320: /* NOTREACHED */
321: }
322:
323:
1.84 schwarze 324: /*
325: * Rewinding to tok, how do we have to handle *p?
326: * REWIND_NONE: *p would delimit tok, but no tok scope is open
327: * inside *p, so there is no need to rewind anything at all.
328: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
329: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
330: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
331: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 332: */
1.51 kristaps 333: static enum rew
1.47 kristaps 334: rew_dohalt(enum mdoct tok, enum mdoc_type type,
335: const struct mdoc_node *p)
1.1 kristaps 336: {
337:
1.86 ! schwarze 338: /*
! 339: * No matching token, no delimiting block, no broken block.
! 340: * This can happen when full implicit macros are called for
! 341: * the first time but try to rewind their previous
! 342: * instance anyway.
! 343: */
1.1 kristaps 344: if (MDOC_ROOT == p->type)
1.84 schwarze 345: return(MDOC_BLOCK == type &&
346: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
347: REWIND_ERROR : REWIND_NONE);
1.86 ! schwarze 348:
! 349: /*
! 350: * When starting to rewind, skip plain text
! 351: * and nodes that have already been rewound.
! 352: */
1.84 schwarze 353: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
354: return(REWIND_MORE);
355:
1.86 ! schwarze 356: /*
! 357: * The easiest case: Found a matching token.
! 358: * This applies to both blocks and elements.
! 359: */
1.84 schwarze 360: tok = rew_alt(tok);
361: if (tok == p->tok)
362: return(p->end ? REWIND_NONE :
363: type == p->type ? REWIND_THIS : REWIND_MORE);
364:
1.86 ! schwarze 365: /*
! 366: * While elements do require rewinding for themselves,
! 367: * they never affect rewinding of other nodes.
! 368: */
1.84 schwarze 369: if (MDOC_ELEM == p->type)
370: return(REWIND_MORE);
1.1 kristaps 371:
1.86 ! schwarze 372: /*
! 373: * Blocks delimited by our target token get REWIND_MORE.
! 374: * Blocks delimiting our target token get REWIND_NONE.
! 375: */
1.1 kristaps 376: switch (tok) {
1.84 schwarze 377: case (MDOC_Bl):
378: if (MDOC_It == p->tok)
379: return(REWIND_MORE);
1.1 kristaps 380: break;
381: case (MDOC_It):
382: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.84 schwarze 383: return(REWIND_NONE);
1.1 kristaps 384: break;
1.84 schwarze 385: /*
386: * XXX Badly nested block handling still fails badly
387: * when one block is breaking two blocks of the same type.
388: * This is an incomplete and extremely ugly workaround,
389: * required to let the OpenBSD tree build.
390: */
391: case (MDOC_Oo):
392: if (MDOC_Op == p->tok)
393: return(REWIND_MORE);
1.1 kristaps 394: break;
1.19 kristaps 395: case (MDOC_Nd):
396: /* FALLTHROUGH */
1.1 kristaps 397: case (MDOC_Ss):
398: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.84 schwarze 399: return(REWIND_NONE);
1.1 kristaps 400: /* FALLTHROUGH */
401: case (MDOC_Sh):
1.84 schwarze 402: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
403: MDOC_Sh == p->tok)
404: return(REWIND_MORE);
1.1 kristaps 405: break;
406: default:
407: break;
408: }
409:
1.86 ! schwarze 410: /*
! 411: * Default block rewinding rules.
! 412: * In particular, always skip block end markers.
! 413: */
! 414: if (p->end || (MDOC_BLOCK == p->type &&
! 415: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
! 416: return(REWIND_MORE);
! 417:
! 418: /*
! 419: * Partial blocks allow delayed rewinding by default.
! 420: */
! 421: if (&blk_full != mdoc_macros[tok].fp)
! 422: return (REWIND_LATER);
! 423:
! 424: /*
! 425: * Full blocks can only be rewound when matching
! 426: * or when there is an explicit rule.
! 427: */
! 428: return(REWIND_ERROR);
1.1 kristaps 429: }
430:
431:
432: static int
1.47 kristaps 433: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 434: {
435: struct mdoc_node *n;
436:
437: n = mdoc->last;
438: if (MDOC_ELEM != n->type)
439: n = n->parent;
440: assert(MDOC_ELEM == n->type);
441: assert(tok == n->tok);
442:
443: return(rew_last(mdoc, n));
444: }
445:
446:
1.83 schwarze 447: /*
448: * We are trying to close a block identified by tok,
449: * but the child block *broken is still open.
450: * Thus, postpone closing the tok block
451: * until the rew_sub call closing *broken.
452: */
453: static int
454: make_pending(struct mdoc_node *broken, enum mdoct tok,
455: struct mdoc *m, int line, int ppos)
456: {
457: struct mdoc_node *breaker;
458:
459: /*
460: * Iterate backwards, searching for the block matching tok,
461: * that is, the block breaking the *broken block.
462: */
463: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
464:
465: /*
466: * If the *broken block had already been broken before
467: * and we encounter its breaker, make the tok block
468: * pending on the inner breaker.
469: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
470: * becomes "[A broken=[B [C->B B] tok=A] C]"
471: * and finally "[A [B->A [C->B B] A] C]".
472: */
473: if (breaker == broken->pending) {
474: broken = breaker;
475: continue;
476: }
477:
1.84 schwarze 478: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.83 schwarze 479: continue;
480: if (MDOC_BODY == broken->type)
481: broken = broken->parent;
482:
483: /*
484: * Found the breaker.
485: * If another, outer breaker is already pending on
486: * the *broken block, we must not clobber the link
487: * to the outer breaker, but make it pending on the
488: * new, now inner breaker.
489: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
490: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
491: * and finally "[A [B->A [C->B A] B] C]".
492: */
493: if (broken->pending) {
494: struct mdoc_node *taker;
495:
496: /*
497: * If the breaker had also been broken before,
498: * it cannot take on the outer breaker itself,
499: * but must hand it on to its own breakers.
500: * Graphically, this is the following situation:
501: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
502: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
503: */
504: taker = breaker;
505: while (taker->pending)
506: taker = taker->pending;
507: taker->pending = broken->pending;
508: }
509: broken->pending = breaker;
510: mdoc_vmsg(m, MANDOCERR_SCOPE, line, ppos, "%s breaks %s",
511: mdoc_macronames[tok], mdoc_macronames[broken->tok]);
512: return(1);
513: }
514:
515: /*
516: * Found no matching block for tok.
517: * Are you trying to close a block that is not open?
1.84 schwarze 518: * XXX Make this non-fatal.
1.83 schwarze 519: */
520: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE);
521: return(0);
522: }
523:
1.84 schwarze 524:
1.1 kristaps 525: static int
1.32 kristaps 526: rew_sub(enum mdoc_type t, struct mdoc *m,
1.47 kristaps 527: enum mdoct tok, int line, int ppos)
1.1 kristaps 528: {
529: struct mdoc_node *n;
530:
1.84 schwarze 531: n = m->last;
532: while (n) {
533: switch (rew_dohalt(tok, t, n)) {
534: case (REWIND_NONE):
535: return(1);
536: case (REWIND_THIS):
537: break;
538: case (REWIND_MORE):
539: n = n->parent;
540: continue;
541: case (REWIND_LATER):
542: return(make_pending(n, tok, m, line, ppos));
543: case (REWIND_ERROR):
544: /* XXX Make this non-fatal. */
1.68 kristaps 545: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE);
1.84 schwarze 546: return 0;
1.32 kristaps 547: }
1.84 schwarze 548: break;
1.1 kristaps 549: }
550:
551: assert(n);
1.47 kristaps 552: if ( ! rew_last(m, n))
553: return(0);
554:
555: /*
1.83 schwarze 556: * The current block extends an enclosing block.
557: * Now that the current block ends, close the enclosing block, too.
1.47 kristaps 558: */
1.83 schwarze 559: while (NULL != (n = n->pending)) {
1.47 kristaps 560: if ( ! rew_last(m, n))
561: return(0);
1.83 schwarze 562: if (MDOC_HEAD == n->type &&
563: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.47 kristaps 564: return(0);
565: }
566:
567: return(1);
1.1 kristaps 568: }
569:
570:
571: static int
1.66 kristaps 572: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 573: {
1.66 kristaps 574: int la;
1.55 kristaps 575: enum margserr ac;
1.1 kristaps 576: char *p;
577:
1.66 kristaps 578: if ('\0' == buf[*pos])
1.1 kristaps 579: return(1);
580:
581: for (;;) {
1.66 kristaps 582: la = *pos;
583: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 584:
1.53 kristaps 585: if (ARGS_ERROR == ac)
1.1 kristaps 586: return(0);
1.53 kristaps 587: else if (ARGS_EOLN == ac)
1.1 kristaps 588: break;
1.66 kristaps 589:
1.67 schwarze 590: assert(DELIM_NONE != mdoc_isdelim(p));
1.66 kristaps 591: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 592: return(0);
1.66 kristaps 593:
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: */
605: if (mandoc_eos(p, strlen(p)))
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: {
1.83 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:
1.60 kristaps 623: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 624: enum margserr ac;
1.83 schwarze 625: enum mdoct atok, ntok;
1.1 kristaps 626: char *p;
627:
1.60 kristaps 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:
1.83 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) {
651: if ( ! n->end)
652: body = n;
653: continue;
654: }
655:
656: if (MDOC_BLOCK != n->type)
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)) {
1.68 kristaps 702: /* FIXME: do this in validate */
1.22 kristaps 703: if (buf[*pos])
1.68 kristaps 704: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 705: return(0);
1.22 kristaps 706:
1.32 kristaps 707: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 kristaps 708: return(0);
1.32 kristaps 709: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 710: }
711:
1.32 kristaps 712: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 713: return(0);
714:
1.83 schwarze 715: if (NULL == later && maxargs > 0)
1.32 kristaps 716: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 717: return(0);
718:
1.27 kristaps 719: for (flushed = j = 0; ; j++) {
1.1 kristaps 720: lastarg = *pos;
721:
722: if (j == maxargs && ! flushed) {
1.32 kristaps 723: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 724: return(0);
725: flushed = 1;
726: }
727:
1.53 kristaps 728: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 729:
1.53 kristaps 730: if (ARGS_ERROR == ac)
1.1 kristaps 731: return(0);
1.53 kristaps 732: if (ARGS_PUNCT == ac)
1.1 kristaps 733: break;
1.53 kristaps 734: if (ARGS_EOLN == ac)
1.1 kristaps 735: break;
736:
1.54 kristaps 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);
1.54 kristaps 742: continue;
743: }
1.1 kristaps 744:
1.54 kristaps 745: if ( ! flushed) {
746: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
747: return(0);
748: flushed = 1;
749: }
1.82 kristaps 750: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 751: return(0);
1.54 kristaps 752: break;
1.1 kristaps 753: }
754:
1.32 kristaps 755: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 756: return(0);
757:
1.60 kristaps 758: if ( ! nl)
1.1 kristaps 759: return(1);
1.32 kristaps 760: return(append_delims(m, line, pos, buf));
1.1 kristaps 761: }
762:
763:
764: static int
765: in_line(MACRO_PROT_ARGS)
766: {
1.70 kristaps 767: int la, scope, cnt, nc, nl;
1.56 kristaps 768: enum margverr av;
1.53 kristaps 769: enum mdoct ntok;
1.55 kristaps 770: enum margserr ac;
1.67 schwarze 771: enum mdelim d;
1.53 kristaps 772: struct mdoc_arg *arg;
773: char *p;
1.1 kristaps 774:
1.60 kristaps 775: nl = MDOC_NEWLINE & m->flags;
776:
1.4 kristaps 777: /*
778: * Whether we allow ignored elements (those without content,
779: * usually because of reserved words) to squeak by.
780: */
1.45 kristaps 781:
1.4 kristaps 782: switch (tok) {
1.26 kristaps 783: case (MDOC_An):
784: /* FALLTHROUGH */
785: case (MDOC_Ar):
1.4 kristaps 786: /* FALLTHROUGH */
787: case (MDOC_Fl):
788: /* FALLTHROUGH */
1.12 kristaps 789: case (MDOC_Lk):
790: /* FALLTHROUGH */
1.26 kristaps 791: case (MDOC_Nm):
792: /* FALLTHROUGH */
1.25 kristaps 793: case (MDOC_Pa):
1.4 kristaps 794: nc = 1;
795: break;
796: default:
797: nc = 0;
798: break;
799: }
800:
1.27 kristaps 801: for (arg = NULL;; ) {
1.1 kristaps 802: la = *pos;
1.56 kristaps 803: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 804:
1.56 kristaps 805: if (ARGV_WORD == av) {
1.1 kristaps 806: *pos = la;
807: break;
808: }
1.56 kristaps 809: if (ARGV_EOLN == av)
1.1 kristaps 810: break;
1.56 kristaps 811: if (ARGV_ARG == av)
1.1 kristaps 812: continue;
813:
814: mdoc_argv_free(arg);
815: return(0);
816: }
817:
1.70 kristaps 818: for (cnt = scope = 0;; ) {
1.1 kristaps 819: la = *pos;
1.53 kristaps 820: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 821:
1.53 kristaps 822: if (ARGS_ERROR == ac)
1.1 kristaps 823: return(0);
1.53 kristaps 824: if (ARGS_EOLN == ac)
1.1 kristaps 825: break;
1.53 kristaps 826: if (ARGS_PUNCT == ac)
1.1 kristaps 827: break;
828:
1.53 kristaps 829: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 830:
1.4 kristaps 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: */
1.1 kristaps 837:
1.53 kristaps 838: if (MDOC_MAX != ntok) {
1.70 kristaps 839: if (scope && ! rew_elem(m, tok))
1.1 kristaps 840: return(0);
1.4 kristaps 841: if (nc && 0 == cnt) {
1.32 kristaps 842: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 843: return(0);
1.32 kristaps 844: if ( ! rew_last(m, m->last))
1.12 kristaps 845: return(0);
1.7 kristaps 846: } else if ( ! nc && 0 == cnt) {
847: mdoc_argv_free(arg);
1.68 kristaps 848: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 849: return(0);
1.7 kristaps 850: }
1.82 kristaps 851: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 852: return(0);
1.60 kristaps 853: if ( ! nl)
1.1 kristaps 854: return(1);
1.32 kristaps 855: return(append_delims(m, line, pos, buf));
1.29 kristaps 856: }
1.1 kristaps 857:
1.4 kristaps 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: */
1.1 kristaps 863:
1.67 schwarze 864: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 865:
1.70 kristaps 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);
1.70 kristaps 890: scope = 0;
891: } else if ( ! scope) {
1.32 kristaps 892: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 893: return(0);
1.70 kristaps 894: scope = 1;
1.1 kristaps 895: }
896:
1.67 schwarze 897: if (DELIM_NONE == d)
1.3 kristaps 898: cnt++;
1.32 kristaps 899: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 900: return(0);
1.39 kristaps 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: */
1.70 kristaps 907: if (scope && MDOC_Fl == tok) {
1.39 kristaps 908: if ( ! rew_elem(m, tok))
909: return(0);
1.70 kristaps 910: scope = 0;
1.39 kristaps 911: }
1.1 kristaps 912: }
913:
1.70 kristaps 914: if (scope && ! rew_elem(m, tok))
1.1 kristaps 915: return(0);
1.4 kristaps 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: */
1.45 kristaps 922:
1.4 kristaps 923: if (nc && 0 == cnt) {
1.32 kristaps 924: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 925: return(0);
1.32 kristaps 926: if ( ! rew_last(m, m->last))
1.12 kristaps 927: return(0);
1.7 kristaps 928: } else if ( ! nc && 0 == cnt) {
929: mdoc_argv_free(arg);
1.68 kristaps 930: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 931: return(0);
1.7 kristaps 932: }
1.4 kristaps 933:
1.60 kristaps 934: if ( ! nl)
1.1 kristaps 935: return(1);
1.32 kristaps 936: return(append_delims(m, line, pos, buf));
1.1 kristaps 937: }
938:
939:
940: static int
941: blk_full(MACRO_PROT_ARGS)
942: {
1.63 kristaps 943: int la, nl;
1.1 kristaps 944: struct mdoc_arg *arg;
1.45 kristaps 945: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 946: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 947: struct mdoc_node *n;
1.74 kristaps 948: enum mdoc_type mtt;
1.53 kristaps 949: enum mdoct ntok;
1.59 kristaps 950: enum margserr ac, lac;
1.56 kristaps 951: enum margverr av;
1.1 kristaps 952: char *p;
953:
1.63 kristaps 954: nl = MDOC_NEWLINE & m->flags;
955:
1.45 kristaps 956: /* Close out prior implicit scope. */
1.19 kristaps 957:
1.1 kristaps 958: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.32 kristaps 959: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 960: return(0);
1.32 kristaps 961: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 962: return(0);
963: }
964:
1.45 kristaps 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;; ) {
1.45 kristaps 975: la = *pos;
1.56 kristaps 976: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 977:
1.56 kristaps 978: if (ARGV_WORD == av) {
1.45 kristaps 979: *pos = la;
1.1 kristaps 980: break;
981: }
982:
1.56 kristaps 983: if (ARGV_EOLN == av)
1.1 kristaps 984: break;
1.56 kristaps 985: if (ARGV_ARG == av)
1.1 kristaps 986: continue;
987:
988: mdoc_argv_free(arg);
989: return(0);
990: }
991:
1.32 kristaps 992: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 993: return(0);
994:
1.49 kristaps 995: head = body = NULL;
1.1 kristaps 996:
1.45 kristaps 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: */
1.19 kristaps 1001:
1.45 kristaps 1002: if (MDOC_Nd == tok) {
1003: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1004: return(0);
1005: head = m->last;
1.32 kristaps 1006: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.19 kristaps 1007: return(0);
1.32 kristaps 1008: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.19 kristaps 1009: return(0);
1.49 kristaps 1010: body = m->last;
1.19 kristaps 1011: }
1012:
1.59 kristaps 1013: ac = ARGS_ERROR;
1014:
1.62 kristaps 1015: for ( ; ; ) {
1.45 kristaps 1016: la = *pos;
1.75 kristaps 1017: /* Initialise last-phrase-type with ARGS_PEND. */
1018: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.53 kristaps 1019: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1020:
1.53 kristaps 1021: if (ARGS_ERROR == ac)
1.1 kristaps 1022: return(0);
1.75 kristaps 1023:
1024: if (ARGS_EOLN == ac) {
1025: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1026: break;
1027: /*
1028: * This is necessary: if the last token on a
1029: * line is a `Ta' or tab, then we'll get
1030: * ARGS_EOLN, so we must be smart enough to
1031: * reopen our scope if the last parse was a
1032: * phrase or partial phrase.
1033: */
1034: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1035: return(0);
1036: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1037: return(0);
1038: body = m->last;
1.1 kristaps 1039: break;
1.75 kristaps 1040: }
1.45 kristaps 1041:
1.73 kristaps 1042: /*
1043: * Emit leading punctuation (i.e., punctuation before
1044: * the MDOC_HEAD) for non-phrase types.
1045: */
1.45 kristaps 1046:
1.59 kristaps 1047: if (NULL == head &&
1.71 kristaps 1048: ARGS_PEND != ac &&
1.59 kristaps 1049: ARGS_PHRASE != ac &&
1.57 kristaps 1050: ARGS_PPHRASE != ac &&
1.53 kristaps 1051: ARGS_QWORD != ac &&
1.67 schwarze 1052: DELIM_OPEN == mdoc_isdelim(p)) {
1.45 kristaps 1053: if ( ! mdoc_word_alloc(m, line, la, p))
1054: return(0);
1055: continue;
1056: }
1057:
1.74 kristaps 1058: /* Open a head if one hasn't been opened. */
1.45 kristaps 1059:
1.74 kristaps 1060: if (NULL == head) {
1.45 kristaps 1061: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1062: return(0);
1063: head = m->last;
1064: }
1065:
1.72 kristaps 1066: if (ARGS_PHRASE == ac ||
1067: ARGS_PEND == ac ||
1068: ARGS_PPHRASE == ac) {
1.73 kristaps 1069: /*
1.74 kristaps 1070: * If we haven't opened a body yet, rewind the
1071: * head; if we have, rewind that instead.
1072: */
1073:
1074: mtt = body ? MDOC_BODY : MDOC_HEAD;
1075: if ( ! rew_sub(mtt, m, tok, line, ppos))
1076: return(0);
1077:
1078: /* Then allocate our body context. */
1079:
1080: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1081: return(0);
1082: body = m->last;
1083:
1084: /*
1.73 kristaps 1085: * Process phrases: set whether we're in a
1086: * partial-phrase (this effects line handling)
1087: * then call down into the phrase parser.
1088: */
1.74 kristaps 1089:
1.65 kristaps 1090: if (ARGS_PPHRASE == ac)
1091: m->flags |= MDOC_PPHRASE;
1.71 kristaps 1092: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1093: m->flags |= MDOC_PPHRASE;
1094:
1.82 kristaps 1095: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1096: return(0);
1.71 kristaps 1097:
1.65 kristaps 1098: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1099: continue;
1100: }
1101:
1.54 kristaps 1102: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1103:
1104: if (MDOC_MAX == ntok) {
1.53 kristaps 1105: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1106: return(0);
1.53 kristaps 1107: continue;
1.45 kristaps 1108: }
1.53 kristaps 1109:
1.82 kristaps 1110: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.45 kristaps 1111: return(0);
1.53 kristaps 1112: break;
1.45 kristaps 1113: }
1.1 kristaps 1114:
1.45 kristaps 1115: if (NULL == head) {
1116: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1117: return(0);
1.45 kristaps 1118: head = m->last;
1.1 kristaps 1119: }
1120:
1.63 kristaps 1121: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1122: return(0);
1.19 kristaps 1123:
1.49 kristaps 1124: /* If we've already opened our body, exit now. */
1.45 kristaps 1125:
1.49 kristaps 1126: if (NULL != body)
1.77 kristaps 1127: goto out;
1.19 kristaps 1128:
1.47 kristaps 1129: /*
1.49 kristaps 1130: * If there is an open (i.e., unvalidated) sub-block requiring
1131: * explicit close-out, postpone switching the current block from
1132: * head to body until the rew_sub() call closing out that
1133: * sub-block.
1.47 kristaps 1134: */
1135: for (n = m->last; n && n != head; n = n->parent) {
1.49 kristaps 1136: if (MDOC_BLOCK == n->type &&
1137: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1138: ! (MDOC_VALID & n->flags)) {
1139: assert( ! (MDOC_ACTED & n->flags));
1.47 kristaps 1140: n->pending = head;
1141: return(1);
1142: }
1143: }
1144:
1.45 kristaps 1145: /* Close out scopes to remain in a consistent state. */
1146:
1.32 kristaps 1147: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1148: return(0);
1.32 kristaps 1149: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1150: return(0);
1151:
1.77 kristaps 1152: out:
1153: if ( ! (MDOC_FREECOL & m->flags))
1154: return(1);
1155:
1156: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1157: return(0);
1158: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1159: return(0);
1160:
1161: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1162: return(1);
1163: }
1164:
1165:
1166: static int
1167: blk_part_imp(MACRO_PROT_ARGS)
1168: {
1.63 kristaps 1169: int la, nl;
1.53 kristaps 1170: enum mdoct ntok;
1.55 kristaps 1171: enum margserr ac;
1.1 kristaps 1172: char *p;
1.43 kristaps 1173: struct mdoc_node *blk; /* saved block context */
1174: struct mdoc_node *body; /* saved body context */
1175: struct mdoc_node *n;
1.1 kristaps 1176:
1.63 kristaps 1177: nl = MDOC_NEWLINE & m->flags;
1178:
1.43 kristaps 1179: /*
1180: * A macro that spans to the end of the line. This is generally
1181: * (but not necessarily) called as the first macro. The block
1182: * has a head as the immediate child, which is always empty,
1183: * followed by zero or more opening punctuation nodes, then the
1184: * body (which may be empty, depending on the macro), then zero
1185: * or more closing punctuation nodes.
1186: */
1.32 kristaps 1187:
1188: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1189: return(0);
1.43 kristaps 1190:
1.32 kristaps 1191: blk = m->last;
1.43 kristaps 1192:
1.32 kristaps 1193: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1194: return(0);
1.32 kristaps 1195: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1196: return(0);
1197:
1.43 kristaps 1198: /*
1199: * Open the body scope "on-demand", that is, after we've
1200: * processed all our the leading delimiters (open parenthesis,
1201: * etc.).
1202: */
1.1 kristaps 1203:
1.43 kristaps 1204: for (body = NULL; ; ) {
1.32 kristaps 1205: la = *pos;
1.53 kristaps 1206: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.43 kristaps 1207:
1.53 kristaps 1208: if (ARGS_ERROR == ac)
1.1 kristaps 1209: return(0);
1.53 kristaps 1210: if (ARGS_EOLN == ac)
1.43 kristaps 1211: break;
1.53 kristaps 1212: if (ARGS_PUNCT == ac)
1.1 kristaps 1213: break;
1214:
1.53 kristaps 1215: if (NULL == body && ARGS_QWORD != ac &&
1.67 schwarze 1216: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 kristaps 1217: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1218: return(0);
1219: continue;
1220: }
1221:
1.43 kristaps 1222: if (NULL == body) {
1223: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1224: return(0);
1225: body = m->last;
1226: }
1227:
1.54 kristaps 1228: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1229:
1230: if (MDOC_MAX == ntok) {
1.53 kristaps 1231: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1232: return(0);
1.53 kristaps 1233: continue;
1234: }
1.43 kristaps 1235:
1.82 kristaps 1236: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1237: return(0);
1.53 kristaps 1238: break;
1.1 kristaps 1239: }
1240:
1.43 kristaps 1241: /* Clean-ups to leave in a consistent state. */
1242:
1.44 kristaps 1243: if (NULL == body) {
1244: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1245: return(0);
1246: body = m->last;
1.64 kristaps 1247: }
1248:
1249: for (n = body->child; n && n->next; n = n->next)
1250: /* Do nothing. */ ;
1251:
1252: /*
1253: * End of sentence spacing: if the last node is a text node and
1254: * has a trailing period, then mark it as being end-of-sentence.
1255: */
1256:
1257: if (n && MDOC_TEXT == n->type && n->string)
1258: if (mandoc_eos(n->string, strlen(n->string)))
1259: n->flags |= MDOC_EOS;
1260:
1261: /* Up-propogate the end-of-space flag. */
1262:
1263: if (n && (MDOC_EOS & n->flags)) {
1264: body->flags |= MDOC_EOS;
1265: body->parent->flags |= MDOC_EOS;
1.44 kristaps 1266: }
1.43 kristaps 1267:
1.83 schwarze 1268: /*
1269: * If there is an open sub-block requiring explicit close-out,
1270: * postpone closing out the current block
1271: * until the rew_sub() call closing out the sub-block.
1272: */
1273: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1274: if (MDOC_BLOCK == n->type &&
1275: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1276: ! (MDOC_VALID & n->flags)) {
1277: assert( ! (MDOC_ACTED & n->flags));
1278: if ( ! make_pending(n, tok, m, line, ppos))
1279: return(0);
1280: if ( ! mdoc_endbody_alloc(m, line, ppos,
1281: tok, body, ENDBODY_NOSPACE))
1282: return(0);
1283: return(1);
1284: }
1285: }
1286:
1.32 kristaps 1287: /*
1288: * If we can't rewind to our body, then our scope has already
1289: * been closed by another macro (like `Oc' closing `Op'). This
1290: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1291: * crufty use of `Op' breakage.
1.1 kristaps 1292: */
1.83 schwarze 1293: if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPE, line, ppos,
1294: "%s broken", mdoc_macronames[tok]))
1.32 kristaps 1295: return(0);
1.43 kristaps 1296:
1.83 schwarze 1297: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.32 kristaps 1298: return(0);
1.1 kristaps 1299:
1.32 kristaps 1300: /* Standard appending of delimiters. */
1.1 kristaps 1301:
1.63 kristaps 1302: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1303: return(0);
1304:
1.32 kristaps 1305: /* Rewind scope, if applicable. */
1.1 kristaps 1306:
1.83 schwarze 1307: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1308: return(0);
1309:
1310: return(1);
1311: }
1312:
1313:
1314: static int
1315: blk_part_exp(MACRO_PROT_ARGS)
1316: {
1.60 kristaps 1317: int la, nl;
1.55 kristaps 1318: enum margserr ac;
1.43 kristaps 1319: struct mdoc_node *head; /* keep track of head */
1320: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1321: char *p;
1.53 kristaps 1322: enum mdoct ntok;
1.1 kristaps 1323:
1.60 kristaps 1324: nl = MDOC_NEWLINE & m->flags;
1325:
1.43 kristaps 1326: /*
1327: * The opening of an explicit macro having zero or more leading
1328: * punctuation nodes; a head with optional single element (the
1329: * case of `Eo'); and a body that may be empty.
1330: */
1.32 kristaps 1331:
1332: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1333: return(0);
1.32 kristaps 1334:
1.43 kristaps 1335: for (head = body = NULL; ; ) {
1.32 kristaps 1336: la = *pos;
1.53 kristaps 1337: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1338:
1.53 kristaps 1339: if (ARGS_ERROR == ac)
1.1 kristaps 1340: return(0);
1.53 kristaps 1341: if (ARGS_PUNCT == ac)
1.1 kristaps 1342: break;
1.53 kristaps 1343: if (ARGS_EOLN == ac)
1.1 kristaps 1344: break;
1.43 kristaps 1345:
1346: /* Flush out leading punctuation. */
1347:
1.53 kristaps 1348: if (NULL == head && ARGS_QWORD != ac &&
1.67 schwarze 1349: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1350: assert(NULL == body);
1351: if ( ! mdoc_word_alloc(m, line, la, p))
1352: return(0);
1353: continue;
1354: }
1355:
1356: if (NULL == head) {
1357: assert(NULL == body);
1358: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1359: return(0);
1.43 kristaps 1360: head = m->last;
1.1 kristaps 1361: }
1362:
1.43 kristaps 1363: /*
1364: * `Eo' gobbles any data into the head, but most other
1365: * macros just immediately close out and begin the body.
1366: */
1367:
1368: if (NULL == body) {
1369: assert(head);
1370: /* No check whether it's a macro! */
1371: if (MDOC_Eo == tok)
1372: if ( ! mdoc_word_alloc(m, line, la, p))
1373: return(0);
1374:
1.32 kristaps 1375: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1376: return(0);
1.32 kristaps 1377: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1378: return(0);
1.43 kristaps 1379: body = m->last;
1380:
1381: if (MDOC_Eo == tok)
1382: continue;
1.1 kristaps 1383: }
1.43 kristaps 1384:
1385: assert(NULL != head && NULL != body);
1386:
1.54 kristaps 1387: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1388:
1389: if (MDOC_MAX == ntok) {
1.53 kristaps 1390: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1391: return(0);
1.53 kristaps 1392: continue;
1.43 kristaps 1393: }
1394:
1.82 kristaps 1395: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1396: return(0);
1.53 kristaps 1397: break;
1.1 kristaps 1398: }
1399:
1.43 kristaps 1400: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1401:
1.43 kristaps 1402: if (NULL == head) {
1403: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1404: return(0);
1405: head = m->last;
1406: }
1407:
1408: if (NULL == body) {
1.32 kristaps 1409: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1410: return(0);
1.32 kristaps 1411: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1412: return(0);
1.43 kristaps 1413: body = m->last;
1.1 kristaps 1414: }
1415:
1.32 kristaps 1416: /* Standard appending of delimiters. */
1417:
1.60 kristaps 1418: if ( ! nl)
1.1 kristaps 1419: return(1);
1.32 kristaps 1420: return(append_delims(m, line, pos, buf));
1.1 kristaps 1421: }
1422:
1423:
1.61 kristaps 1424: /* ARGSUSED */
1.1 kristaps 1425: static int
1426: in_line_argn(MACRO_PROT_ARGS)
1427: {
1.60 kristaps 1428: int la, flushed, j, maxargs, nl;
1.55 kristaps 1429: enum margserr ac;
1.56 kristaps 1430: enum margverr av;
1.53 kristaps 1431: struct mdoc_arg *arg;
1432: char *p;
1433: enum mdoct ntok;
1.1 kristaps 1434:
1.60 kristaps 1435: nl = MDOC_NEWLINE & m->flags;
1436:
1.46 kristaps 1437: /*
1438: * A line macro that has a fixed number of arguments (maxargs).
1439: * Only open the scope once the first non-leading-punctuation is
1440: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1441: * keep it open until the maximum number of arguments are
1442: * exhausted.
1443: */
1.1 kristaps 1444:
1445: switch (tok) {
1446: case (MDOC_Ap):
1447: /* FALLTHROUGH */
1448: case (MDOC_No):
1449: /* FALLTHROUGH */
1450: case (MDOC_Ns):
1451: /* FALLTHROUGH */
1452: case (MDOC_Ux):
1453: maxargs = 0;
1454: break;
1.42 kristaps 1455: case (MDOC_Xr):
1456: maxargs = 2;
1457: break;
1.1 kristaps 1458: default:
1459: maxargs = 1;
1460: break;
1461: }
1462:
1.46 kristaps 1463: for (arg = NULL; ; ) {
1.32 kristaps 1464: la = *pos;
1.56 kristaps 1465: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1466:
1.56 kristaps 1467: if (ARGV_WORD == av) {
1.32 kristaps 1468: *pos = la;
1.1 kristaps 1469: break;
1470: }
1471:
1.56 kristaps 1472: if (ARGV_EOLN == av)
1.1 kristaps 1473: break;
1.56 kristaps 1474: if (ARGV_ARG == av)
1.1 kristaps 1475: continue;
1476:
1477: mdoc_argv_free(arg);
1478: return(0);
1479: }
1480:
1.46 kristaps 1481: for (flushed = j = 0; ; ) {
1.32 kristaps 1482: la = *pos;
1.53 kristaps 1483: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1484:
1.53 kristaps 1485: if (ARGS_ERROR == ac)
1.1 kristaps 1486: return(0);
1.53 kristaps 1487: if (ARGS_PUNCT == ac)
1.1 kristaps 1488: break;
1.53 kristaps 1489: if (ARGS_EOLN == ac)
1.1 kristaps 1490: break;
1491:
1.46 kristaps 1492: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1493: ARGS_QWORD != ac &&
1.67 schwarze 1494: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.46 kristaps 1495: if ( ! mdoc_word_alloc(m, line, la, p))
1496: return(0);
1497: continue;
1498: } else if (0 == j)
1499: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1500: return(0);
1501:
1502: if (j == maxargs && ! flushed) {
1503: if ( ! rew_elem(m, tok))
1504: return(0);
1505: flushed = 1;
1506: }
1507:
1.54 kristaps 1508: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1509:
1510: if (MDOC_MAX != ntok) {
1.32 kristaps 1511: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1512: return(0);
1513: flushed = 1;
1.82 kristaps 1514: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1515: return(0);
1.46 kristaps 1516: j++;
1.1 kristaps 1517: break;
1518: }
1519:
1520: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1521: ARGS_QWORD != ac &&
1.67 schwarze 1522: ! flushed &&
1523: DELIM_NONE != mdoc_isdelim(p)) {
1.32 kristaps 1524: if ( ! rew_elem(m, tok))
1.1 kristaps 1525: return(0);
1526: flushed = 1;
1527: }
1.42 kristaps 1528:
1529: /*
1530: * XXX: this is a hack to work around groff's ugliness
1531: * as regards `Xr' and extraneous arguments. It should
1532: * ideally be deprecated behaviour, but because this is
1533: * code is no here, it's unlikely to be removed.
1534: */
1.43 kristaps 1535:
1.46 kristaps 1536: #ifdef __OpenBSD__
1.42 kristaps 1537: if (MDOC_Xr == tok && j == maxargs) {
1.46 kristaps 1538: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.42 kristaps 1539: return(0);
1540: if ( ! rew_elem(m, MDOC_Ns))
1541: return(0);
1542: }
1.46 kristaps 1543: #endif
1.42 kristaps 1544:
1.32 kristaps 1545: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1546: return(0);
1.46 kristaps 1547: j++;
1.1 kristaps 1548: }
1549:
1.46 kristaps 1550: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1551: return(0);
1552:
1553: /* Close out in a consistent state. */
1.32 kristaps 1554:
1555: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1556: return(0);
1.60 kristaps 1557: if ( ! nl)
1.1 kristaps 1558: return(1);
1.32 kristaps 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: {
1.56 kristaps 1566: int la;
1.55 kristaps 1567: enum margserr ac;
1.56 kristaps 1568: enum margverr av;
1.53 kristaps 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:
1.32 kristaps 1575: /* Parse macro arguments. */
1.1 kristaps 1576:
1.32 kristaps 1577: for (arg = NULL; ; ) {
1.1 kristaps 1578: la = *pos;
1.56 kristaps 1579: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1580:
1.56 kristaps 1581: if (ARGV_WORD == av) {
1.1 kristaps 1582: *pos = la;
1583: break;
1584: }
1.56 kristaps 1585: if (ARGV_EOLN == av)
1.1 kristaps 1586: break;
1.56 kristaps 1587: if (ARGV_ARG == av)
1.1 kristaps 1588: continue;
1589:
1590: mdoc_argv_free(arg);
1591: return(0);
1592: }
1593:
1.32 kristaps 1594: /* Open element scope. */
1595:
1596: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1597: return(0);
1598:
1.32 kristaps 1599: /* Parse argument terms. */
1.1 kristaps 1600:
1601: for (;;) {
1602: la = *pos;
1.53 kristaps 1603: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1604:
1.53 kristaps 1605: if (ARGS_ERROR == ac)
1.1 kristaps 1606: return(0);
1.53 kristaps 1607: if (ARGS_EOLN == ac)
1.1 kristaps 1608: break;
1609:
1.53 kristaps 1610: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1611:
1.53 kristaps 1612: if (MDOC_MAX == ntok) {
1613: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1614: return(0);
1.53 kristaps 1615: continue;
1616: }
1.1 kristaps 1617:
1.53 kristaps 1618: if ( ! rew_elem(m, tok))
1.1 kristaps 1619: return(0);
1.82 kristaps 1620: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1621: }
1622:
1.32 kristaps 1623: /* Close out (no delimiters). */
1624:
1625: return(rew_elem(m, tok));
1.1 kristaps 1626: }
1627:
1628:
1629: /* ARGSUSED */
1630: static int
1.41 kristaps 1631: ctx_synopsis(MACRO_PROT_ARGS)
1632: {
1.60 kristaps 1633: int nl;
1634:
1635: nl = MDOC_NEWLINE & m->flags;
1.41 kristaps 1636:
1637: /* If we're not in the SYNOPSIS, go straight to in-line. */
1638: if (SEC_SYNOPSIS != m->lastsec)
1.82 kristaps 1639: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1640:
1641: /* If we're a nested call, same place. */
1.60 kristaps 1642: if ( ! nl)
1.82 kristaps 1643: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1644:
1645: /*
1646: * XXX: this will open a block scope; however, if later we end
1647: * up formatting the block scope, then child nodes will inherit
1648: * the formatting. Be careful.
1649: */
1650:
1.82 kristaps 1651: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.41 kristaps 1652: }
1653:
1654:
1655: /* ARGSUSED */
1656: static int
1.1 kristaps 1657: obsolete(MACRO_PROT_ARGS)
1658: {
1659:
1.68 kristaps 1660: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1661: }
1662:
1663:
1.24 kristaps 1664: /*
1665: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1666: * They're unusual because they're basically free-form text until a
1667: * macro is encountered.
1668: */
1.1 kristaps 1669: static int
1.82 kristaps 1670: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1671: {
1.53 kristaps 1672: int la, pos;
1.75 kristaps 1673: enum margserr ac;
1.53 kristaps 1674: enum mdoct ntok;
1675: char *p;
1.1 kristaps 1676:
1.24 kristaps 1677: for (pos = ppos; ; ) {
1678: la = pos;
1.1 kristaps 1679:
1.75 kristaps 1680: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1681:
1.75 kristaps 1682: if (ARGS_ERROR == ac)
1.24 kristaps 1683: return(0);
1.75 kristaps 1684: if (ARGS_EOLN == ac)
1.24 kristaps 1685: break;
1.1 kristaps 1686:
1.75 kristaps 1687: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1688:
1.53 kristaps 1689: if (MDOC_MAX == ntok) {
1690: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1691: return(0);
1.53 kristaps 1692: continue;
1693: }
1.1 kristaps 1694:
1.82 kristaps 1695: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1696: return(0);
1.53 kristaps 1697: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1698: }
1699:
1700: return(1);
1701: }
1.24 kristaps 1702:
1703:
1.79 kristaps 1704: /* ARGSUSED */
1.75 kristaps 1705: static int
1706: phrase_ta(MACRO_PROT_ARGS)
1707: {
1708: int la;
1709: enum mdoct ntok;
1710: enum margserr ac;
1711: char *p;
1712:
1713: /*
1714: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1715: * it should simply error out with ARGSLOST.
1716: */
1717:
1718: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1719: return(0);
1720: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1721: return(0);
1722:
1723: for (;;) {
1724: la = *pos;
1725: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1726:
1727: if (ARGS_ERROR == ac)
1728: return(0);
1729: if (ARGS_EOLN == ac)
1730: break;
1731:
1732: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1733:
1734: if (MDOC_MAX == ntok) {
1735: if ( ! mdoc_word_alloc(m, line, la, p))
1736: return(0);
1737: continue;
1738: }
1739:
1.82 kristaps 1740: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.75 kristaps 1741: return(0);
1742: return(append_delims(m, line, pos, buf));
1743: }
1744:
1745: return(1);
1746: }
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