Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.60
1.60 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.59 2010/10/24 18:15:43 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,
1.59 schwarze 33: REWIND_FORCE,
1.48 schwarze 34: REWIND_LATER,
1.54 schwarze 35: REWIND_ERROR
1.35 schwarze 36: };
1.1 kristaps 37:
1.36 schwarze 38: static int blk_full(MACRO_PROT_ARGS);
39: static int blk_exp_close(MACRO_PROT_ARGS);
40: static int blk_part_exp(MACRO_PROT_ARGS);
41: static int blk_part_imp(MACRO_PROT_ARGS);
42: static int ctx_synopsis(MACRO_PROT_ARGS);
43: static int in_line_eoln(MACRO_PROT_ARGS);
44: static int in_line_argn(MACRO_PROT_ARGS);
45: static int in_line(MACRO_PROT_ARGS);
46: static int obsolete(MACRO_PROT_ARGS);
1.46 schwarze 47: static int phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 48:
49: static int append_delims(struct mdoc *,
50: int, int *, char *);
51: static enum mdoct lookup(enum mdoct, const char *);
52: static enum mdoct lookup_raw(const char *);
1.49 schwarze 53: static int make_pending(struct mdoc_node *, enum mdoct,
1.47 schwarze 54: struct mdoc *, int, int);
1.46 schwarze 55: static int phrase(struct mdoc *, int, int, char *);
1.36 schwarze 56: static enum mdoct rew_alt(enum mdoct);
57: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
58: const struct mdoc_node *);
59: static int rew_elem(struct mdoc *, enum mdoct);
60: static int rew_last(struct mdoc *,
61: const struct mdoc_node *);
62: static int rew_sub(enum mdoc_type, struct mdoc *,
63: enum mdoct, int, int);
1.1 kristaps 64:
65: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.4 schwarze 66: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
1.1 kristaps 67: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
68: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
69: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
70: { blk_full, 0 }, /* Sh */
71: { blk_full, 0 }, /* Ss */
1.16 schwarze 72: { in_line_eoln, 0 }, /* Pp */
1.1 kristaps 73: { blk_part_imp, MDOC_PARSED }, /* D1 */
74: { blk_part_imp, MDOC_PARSED }, /* Dl */
75: { blk_full, MDOC_EXPLICIT }, /* Bd */
76: { blk_exp_close, MDOC_EXPLICIT }, /* Ed */
77: { blk_full, MDOC_EXPLICIT }, /* Bl */
78: { blk_exp_close, MDOC_EXPLICIT }, /* El */
79: { blk_full, MDOC_PARSED }, /* It */
80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.3 schwarze 81: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.15 schwarze 83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
1.1 kristaps 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
88: { in_line_eoln, 0 }, /* Ex */
89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
90: { in_line_eoln, 0 }, /* Fd */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
1.3 schwarze 93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.11 schwarze 95: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.12 schwarze 97: { blk_full, 0 }, /* Nd */
1.51 schwarze 98: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 99: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
100: { obsolete, 0 }, /* Ot */
101: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
102: { in_line_eoln, 0 }, /* Rv */
103: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
104: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.28 schwarze 105: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
106: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.1 kristaps 107: { in_line_eoln, 0 }, /* %A */
108: { in_line_eoln, 0 }, /* %B */
109: { in_line_eoln, 0 }, /* %D */
110: { in_line_eoln, 0 }, /* %I */
111: { in_line_eoln, 0 }, /* %J */
112: { in_line_eoln, 0 }, /* %N */
113: { in_line_eoln, 0 }, /* %O */
114: { in_line_eoln, 0 }, /* %P */
115: { in_line_eoln, 0 }, /* %R */
116: { in_line_eoln, 0 }, /* %T */
117: { in_line_eoln, 0 }, /* %V */
118: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
119: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
120: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
121: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
122: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
123: { blk_full, MDOC_EXPLICIT }, /* Bf */
124: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
125: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
126: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
127: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
128: { in_line_eoln, 0 }, /* Db */
129: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
130: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
131: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
132: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
133: { blk_exp_close, MDOC_EXPLICIT }, /* Ef */
134: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
135: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
136: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 137: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.57 schwarze 138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* No */
139: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Ns */
1.1 kristaps 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
142: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.35 schwarze 143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.1 kristaps 144: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
145: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
146: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
147: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
148: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
149: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
150: { blk_exp_close, MDOC_EXPLICIT }, /* Re */
151: { blk_full, MDOC_EXPLICIT }, /* Rs */
152: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
153: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
154: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
155: { in_line_eoln, 0 }, /* Sm */
156: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
157: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
158: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
159: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
160: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
161: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
162: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
163: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
164: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
165: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
166: { blk_full, MDOC_EXPLICIT }, /* Bk */
167: { blk_exp_close, MDOC_EXPLICIT }, /* Ek */
168: { in_line_eoln, 0 }, /* Bt */
169: { in_line_eoln, 0 }, /* Hf */
170: { obsolete, 0 }, /* Fr */
171: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 172: { in_line, 0 }, /* Lb */
1.16 schwarze 173: { in_line_eoln, 0 }, /* Lp */
1.3 schwarze 174: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
175: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
1.1 kristaps 176: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
177: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
178: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
179: { in_line_eoln, 0 }, /* %C */
180: { obsolete, 0 }, /* Es */
181: { obsolete, 0 }, /* En */
182: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
183: { in_line_eoln, 0 }, /* %Q */
1.13 schwarze 184: { in_line_eoln, 0 }, /* br */
185: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 186: { in_line_eoln, 0 }, /* %U */
1.46 schwarze 187: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
1.58 schwarze 188: { blk_part_exp, MDOC_EXPLICIT }, /* TS */
189: { blk_exp_close, MDOC_EXPLICIT }, /* TE */
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
1.22 schwarze 201: mdoc_macroend(struct mdoc *m)
1.1 kristaps 202: {
203: struct mdoc_node *n;
204:
205: /* Scan for open explicit scopes. */
206:
1.22 schwarze 207: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 208:
1.56 schwarze 209: for ( ; n; n = n->parent)
210: if (MDOC_BLOCK == n->type &&
211: MDOC_EXPLICIT & mdoc_macros[n->tok].flags)
212: mdoc_nmsg(m, n, MANDOCERR_SCOPEEXIT);
1.1 kristaps 213:
1.22 schwarze 214: /* Rewind to the first. */
215:
216: return(rew_last(m, m->first));
1.1 kristaps 217: }
218:
1.22 schwarze 219:
220: /*
221: * Look up a macro from within a subsequent context.
222: */
1.36 schwarze 223: static enum mdoct
224: lookup(enum mdoct from, const char *p)
1.21 schwarze 225: {
1.24 schwarze 226: /* FIXME: make -diag lists be un-PARSED. */
1.21 schwarze 227:
228: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
229: return(MDOC_MAX);
1.24 schwarze 230: return(lookup_raw(p));
1.21 schwarze 231: }
232:
233:
1.22 schwarze 234: /*
235: * Lookup a macro following the initial line macro.
236: */
1.36 schwarze 237: static enum mdoct
1.24 schwarze 238: lookup_raw(const char *p)
1.1 kristaps 239: {
1.36 schwarze 240: enum mdoct res;
1.1 kristaps 241:
1.24 schwarze 242: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.21 schwarze 243: return(MDOC_MAX);
244: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 245: return(res);
246: return(MDOC_MAX);
247: }
248:
249:
250: static int
1.22 schwarze 251: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 252: {
253:
254: assert(to);
255: mdoc->next = MDOC_NEXT_SIBLING;
256:
257: /* LINTED */
258: while (mdoc->last != to) {
259: if ( ! mdoc_valid_post(mdoc))
260: return(0);
261: mdoc->last = mdoc->last->parent;
262: assert(mdoc->last);
263: }
264:
1.60 ! schwarze 265: return(mdoc_valid_post(mdoc));
1.1 kristaps 266: }
267:
268:
1.22 schwarze 269: /*
1.48 schwarze 270: * For a block closing macro, return the corresponding opening one.
271: * Otherwise, return the macro itself.
1.22 schwarze 272: */
1.34 schwarze 273: static enum mdoct
274: rew_alt(enum mdoct tok)
1.1 kristaps 275: {
276: switch (tok) {
277: case (MDOC_Ac):
278: return(MDOC_Ao);
279: case (MDOC_Bc):
280: return(MDOC_Bo);
281: case (MDOC_Brc):
282: return(MDOC_Bro);
283: case (MDOC_Dc):
284: return(MDOC_Do);
285: case (MDOC_Ec):
286: return(MDOC_Eo);
287: case (MDOC_Ed):
288: return(MDOC_Bd);
289: case (MDOC_Ef):
290: return(MDOC_Bf);
291: case (MDOC_Ek):
292: return(MDOC_Bk);
293: case (MDOC_El):
294: return(MDOC_Bl);
295: case (MDOC_Fc):
296: return(MDOC_Fo);
297: case (MDOC_Oc):
298: return(MDOC_Oo);
299: case (MDOC_Pc):
300: return(MDOC_Po);
301: case (MDOC_Qc):
302: return(MDOC_Qo);
303: case (MDOC_Re):
304: return(MDOC_Rs);
305: case (MDOC_Sc):
306: return(MDOC_So);
307: case (MDOC_Xc):
308: return(MDOC_Xo);
1.58 schwarze 309: case (MDOC_TE):
310: return(MDOC_TS);
1.1 kristaps 311: default:
1.48 schwarze 312: return(tok);
1.1 kristaps 313: }
314: /* NOTREACHED */
315: }
316:
317:
1.48 schwarze 318: /*
319: * Rewinding to tok, how do we have to handle *p?
320: * REWIND_NONE: *p would delimit tok, but no tok scope is open
321: * inside *p, so there is no need to rewind anything at all.
322: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
323: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.59 schwarze 324: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.48 schwarze 325: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
326: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 327: */
1.35 schwarze 328: static enum rew
1.34 schwarze 329: rew_dohalt(enum mdoct tok, enum mdoc_type type,
330: const struct mdoc_node *p)
1.1 kristaps 331: {
332:
1.50 schwarze 333: /*
334: * No matching token, no delimiting block, no broken block.
335: * This can happen when full implicit macros are called for
336: * the first time but try to rewind their previous
337: * instance anyway.
338: */
1.1 kristaps 339: if (MDOC_ROOT == p->type)
1.48 schwarze 340: return(MDOC_BLOCK == type &&
341: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
342: REWIND_ERROR : REWIND_NONE);
1.50 schwarze 343:
344: /*
345: * When starting to rewind, skip plain text
346: * and nodes that have already been rewound.
347: */
1.48 schwarze 348: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
349: return(REWIND_MORE);
350:
1.50 schwarze 351: /*
352: * The easiest case: Found a matching token.
353: * This applies to both blocks and elements.
354: */
1.48 schwarze 355: tok = rew_alt(tok);
356: if (tok == p->tok)
357: return(p->end ? REWIND_NONE :
358: type == p->type ? REWIND_THIS : REWIND_MORE);
359:
1.50 schwarze 360: /*
361: * While elements do require rewinding for themselves,
362: * they never affect rewinding of other nodes.
363: */
1.48 schwarze 364: if (MDOC_ELEM == p->type)
365: return(REWIND_MORE);
1.1 kristaps 366:
1.50 schwarze 367: /*
368: * Blocks delimited by our target token get REWIND_MORE.
369: * Blocks delimiting our target token get REWIND_NONE.
370: */
1.1 kristaps 371: switch (tok) {
1.48 schwarze 372: case (MDOC_Bl):
373: if (MDOC_It == p->tok)
374: return(REWIND_MORE);
1.1 kristaps 375: break;
376: case (MDOC_It):
377: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.48 schwarze 378: return(REWIND_NONE);
1.1 kristaps 379: break;
1.48 schwarze 380: /*
381: * XXX Badly nested block handling still fails badly
382: * when one block is breaking two blocks of the same type.
383: * This is an incomplete and extremely ugly workaround,
384: * required to let the OpenBSD tree build.
385: */
386: case (MDOC_Oo):
387: if (MDOC_Op == p->tok)
388: return(REWIND_MORE);
1.1 kristaps 389: break;
1.51 schwarze 390: case (MDOC_Nm):
391: return(REWIND_NONE);
1.12 schwarze 392: case (MDOC_Nd):
393: /* FALLTHROUGH */
1.1 kristaps 394: case (MDOC_Ss):
395: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.48 schwarze 396: return(REWIND_NONE);
1.1 kristaps 397: /* FALLTHROUGH */
398: case (MDOC_Sh):
1.48 schwarze 399: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
400: MDOC_Sh == p->tok)
401: return(REWIND_MORE);
1.1 kristaps 402: break;
403: default:
404: break;
405: }
406:
1.50 schwarze 407: /*
408: * Default block rewinding rules.
1.51 schwarze 409: * In particular, always skip block end markers,
410: * and let all blocks rewind Nm children.
1.50 schwarze 411: */
1.54 schwarze 412: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
1.51 schwarze 413: (MDOC_BLOCK == p->type &&
1.50 schwarze 414: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
415: return(REWIND_MORE);
416:
417: /*
1.59 schwarze 418: * By default, closing out full blocks
419: * forces closing of broken explicit blocks,
420: * while closing out partial blocks
421: * allows delayed rewinding by default.
1.50 schwarze 422: */
1.59 schwarze 423: return (&blk_full == mdoc_macros[tok].fp ?
424: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 425: }
426:
427:
428: static int
1.34 schwarze 429: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 430: {
431: struct mdoc_node *n;
432:
433: n = mdoc->last;
434: if (MDOC_ELEM != n->type)
435: n = n->parent;
436: assert(MDOC_ELEM == n->type);
437: assert(tok == n->tok);
438:
439: return(rew_last(mdoc, n));
440: }
441:
442:
1.47 schwarze 443: /*
444: * We are trying to close a block identified by tok,
445: * but the child block *broken is still open.
446: * Thus, postpone closing the tok block
447: * until the rew_sub call closing *broken.
448: */
449: static int
450: make_pending(struct mdoc_node *broken, enum mdoct tok,
451: struct mdoc *m, int line, int ppos)
452: {
453: struct mdoc_node *breaker;
454:
455: /*
456: * Iterate backwards, searching for the block matching tok,
457: * that is, the block breaking the *broken block.
458: */
459: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
460:
461: /*
462: * If the *broken block had already been broken before
463: * and we encounter its breaker, make the tok block
464: * pending on the inner breaker.
465: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
466: * becomes "[A broken=[B [C->B B] tok=A] C]"
467: * and finally "[A [B->A [C->B B] A] C]".
468: */
469: if (breaker == broken->pending) {
470: broken = breaker;
471: continue;
472: }
473:
1.48 schwarze 474: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.47 schwarze 475: continue;
476: if (MDOC_BODY == broken->type)
477: broken = broken->parent;
478:
479: /*
480: * Found the breaker.
481: * If another, outer breaker is already pending on
482: * the *broken block, we must not clobber the link
483: * to the outer breaker, but make it pending on the
484: * new, now inner breaker.
485: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
486: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
487: * and finally "[A [B->A [C->B A] B] C]".
488: */
489: if (broken->pending) {
490: struct mdoc_node *taker;
491:
492: /*
493: * If the breaker had also been broken before,
494: * it cannot take on the outer breaker itself,
495: * but must hand it on to its own breakers.
496: * Graphically, this is the following situation:
497: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
498: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
499: */
500: taker = breaker;
501: while (taker->pending)
502: taker = taker->pending;
503: taker->pending = broken->pending;
504: }
505: broken->pending = breaker;
1.51 schwarze 506: mdoc_vmsg(m, MANDOCERR_SCOPENEST, line, ppos,
507: "%s breaks %s", mdoc_macronames[tok],
508: mdoc_macronames[broken->tok]);
1.47 schwarze 509: return(1);
510: }
511:
512: /*
513: * Found no matching block for tok.
514: * Are you trying to close a block that is not open?
515: */
516: return(0);
517: }
518:
1.48 schwarze 519:
1.1 kristaps 520: static int
1.22 schwarze 521: rew_sub(enum mdoc_type t, struct mdoc *m,
1.34 schwarze 522: enum mdoct tok, int line, int ppos)
1.1 kristaps 523: {
524: struct mdoc_node *n;
525:
1.48 schwarze 526: n = m->last;
527: while (n) {
528: switch (rew_dohalt(tok, t, n)) {
529: case (REWIND_NONE):
530: return(1);
531: case (REWIND_THIS):
532: break;
1.59 schwarze 533: case (REWIND_FORCE):
534: mdoc_vmsg(m, MANDOCERR_SCOPEBROKEN, line, ppos,
535: "%s breaks %s", mdoc_macronames[tok],
536: mdoc_macronames[n->tok]);
537: /* FALLTHROUGH */
1.48 schwarze 538: case (REWIND_MORE):
539: n = n->parent;
540: continue;
541: case (REWIND_LATER):
1.59 schwarze 542: if (make_pending(n, tok, m, line, ppos) ||
543: MDOC_BLOCK != t)
544: return(1);
545: /* FALLTHROUGH */
1.48 schwarze 546: case (REWIND_ERROR):
1.59 schwarze 547: mdoc_pmsg(m, line, ppos, MANDOCERR_NOSCOPE);
548: return(1);
1.22 schwarze 549: }
1.48 schwarze 550: break;
1.1 kristaps 551: }
552:
553: assert(n);
1.29 schwarze 554: if ( ! rew_last(m, n))
555: return(0);
556:
557: /*
1.47 schwarze 558: * The current block extends an enclosing block.
559: * Now that the current block ends, close the enclosing block, too.
1.29 schwarze 560: */
1.47 schwarze 561: while (NULL != (n = n->pending)) {
1.29 schwarze 562: if ( ! rew_last(m, n))
563: return(0);
1.47 schwarze 564: if (MDOC_HEAD == n->type &&
565: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.29 schwarze 566: return(0);
567: }
1.54 schwarze 568:
1.29 schwarze 569: return(1);
1.1 kristaps 570: }
571:
572:
573: static int
1.42 schwarze 574: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 575: {
1.42 schwarze 576: int la;
1.36 schwarze 577: enum margserr ac;
1.1 kristaps 578: char *p;
579:
1.42 schwarze 580: if ('\0' == buf[*pos])
1.1 kristaps 581: return(1);
582:
583: for (;;) {
1.42 schwarze 584: la = *pos;
585: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 586:
1.36 schwarze 587: if (ARGS_ERROR == ac)
1.1 kristaps 588: return(0);
1.36 schwarze 589: else if (ARGS_EOLN == ac)
1.1 kristaps 590: break;
1.42 schwarze 591:
1.40 schwarze 592: assert(DELIM_NONE != mdoc_isdelim(p));
1.42 schwarze 593: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 594: return(0);
1.43 schwarze 595:
1.42 schwarze 596: /*
597: * If we encounter end-of-sentence symbols, then trigger
598: * the double-space.
599: *
600: * XXX: it's easy to allow this to propogate outward to
601: * the last symbol, such that `. )' will cause the
602: * correct double-spacing. However, (1) groff isn't
603: * smart enough to do this and (2) it would require
604: * knowing which symbols break this behaviour, for
605: * example, `. ;' shouldn't propogate the double-space.
606: */
1.55 schwarze 607: if (mandoc_eos(p, strlen(p), 0))
1.42 schwarze 608: m->last->flags |= MDOC_EOS;
1.1 kristaps 609: }
610:
611: return(1);
612: }
613:
614:
615: /*
616: * Close out block partial/full explicit.
617: */
618: static int
619: blk_exp_close(MACRO_PROT_ARGS)
620: {
1.47 schwarze 621: struct mdoc_node *body; /* Our own body. */
622: struct mdoc_node *later; /* A sub-block starting later. */
623: struct mdoc_node *n; /* For searching backwards. */
624:
1.37 schwarze 625: int j, lastarg, maxargs, flushed, nl;
1.36 schwarze 626: enum margserr ac;
1.47 schwarze 627: enum mdoct atok, ntok;
1.1 kristaps 628: char *p;
629:
1.37 schwarze 630: nl = MDOC_NEWLINE & m->flags;
631:
1.1 kristaps 632: switch (tok) {
633: case (MDOC_Ec):
634: maxargs = 1;
635: break;
636: default:
637: maxargs = 0;
638: break;
639: }
640:
1.47 schwarze 641: /*
642: * Search backwards for beginnings of blocks,
643: * both of our own and of pending sub-blocks.
644: */
645: atok = rew_alt(tok);
646: body = later = NULL;
647: for (n = m->last; n; n = n->parent) {
648: if (MDOC_VALID & n->flags)
649: continue;
650:
651: /* Remember the start of our own body. */
652: if (MDOC_BODY == n->type && atok == n->tok) {
1.54 schwarze 653: if (ENDBODY_NOT == n->end)
1.47 schwarze 654: body = n;
655: continue;
656: }
657:
1.51 schwarze 658: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.47 schwarze 659: continue;
660: if (atok == n->tok) {
661: assert(body);
662:
663: /*
664: * Found the start of our own block.
665: * When there is no pending sub block,
666: * just proceed to closing out.
667: */
668: if (NULL == later)
669: break;
670:
671: /*
672: * When there is a pending sub block,
673: * postpone closing out the current block
674: * until the rew_sub() closing out the sub-block.
675: */
1.59 schwarze 676: make_pending(later, tok, m, line, ppos);
1.47 schwarze 677:
678: /*
679: * Mark the place where the formatting - but not
680: * the scope - of the current block ends.
681: */
682: if ( ! mdoc_endbody_alloc(m, line, ppos,
683: atok, body, ENDBODY_SPACE))
684: return(0);
685: break;
686: }
687:
688: /*
689: * When finding an open sub block, remember the last
690: * open explicit block, or, in case there are only
691: * implicit ones, the first open implicit block.
692: */
693: if (later &&
694: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
695: continue;
1.60 ! schwarze 696: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags)
1.47 schwarze 697: later = n;
698: }
699:
1.1 kristaps 700: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.44 schwarze 701: /* FIXME: do this in validate */
1.14 schwarze 702: if (buf[*pos])
1.44 schwarze 703: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 704: return(0);
1.14 schwarze 705:
1.22 schwarze 706: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.14 schwarze 707: return(0);
1.22 schwarze 708: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 709: }
710:
1.22 schwarze 711: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 712: return(0);
713:
1.47 schwarze 714: if (NULL == later && maxargs > 0)
1.22 schwarze 715: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 716: return(0);
717:
1.20 schwarze 718: for (flushed = j = 0; ; j++) {
1.1 kristaps 719: lastarg = *pos;
720:
721: if (j == maxargs && ! flushed) {
1.22 schwarze 722: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 723: return(0);
724: flushed = 1;
725: }
726:
1.36 schwarze 727: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 728:
1.36 schwarze 729: if (ARGS_ERROR == ac)
1.1 kristaps 730: return(0);
1.36 schwarze 731: if (ARGS_PUNCT == ac)
1.1 kristaps 732: break;
1.36 schwarze 733: if (ARGS_EOLN == ac)
1.1 kristaps 734: break;
735:
1.36 schwarze 736: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
737:
738: if (MDOC_MAX == ntok) {
739: if ( ! mdoc_word_alloc(m, line, lastarg, p))
1.1 kristaps 740: return(0);
1.36 schwarze 741: continue;
742: }
1.1 kristaps 743:
1.36 schwarze 744: if ( ! flushed) {
745: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
746: return(0);
747: flushed = 1;
748: }
749: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 750: return(0);
1.36 schwarze 751: break;
1.1 kristaps 752: }
753:
1.22 schwarze 754: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 755: return(0);
756:
1.37 schwarze 757: if ( ! nl)
1.1 kristaps 758: return(1);
1.22 schwarze 759: return(append_delims(m, line, pos, buf));
1.1 kristaps 760: }
761:
762:
763: static int
764: in_line(MACRO_PROT_ARGS)
765: {
1.45 schwarze 766: int la, scope, cnt, nc, nl;
1.36 schwarze 767: enum margverr av;
768: enum mdoct ntok;
769: enum margserr ac;
1.40 schwarze 770: enum mdelim d;
1.36 schwarze 771: struct mdoc_arg *arg;
772: char *p;
1.1 kristaps 773:
1.37 schwarze 774: nl = MDOC_NEWLINE & m->flags;
775:
1.1 kristaps 776: /*
777: * Whether we allow ignored elements (those without content,
778: * usually because of reserved words) to squeak by.
779: */
1.32 schwarze 780:
1.1 kristaps 781: switch (tok) {
1.19 schwarze 782: case (MDOC_An):
783: /* FALLTHROUGH */
784: case (MDOC_Ar):
1.1 kristaps 785: /* FALLTHROUGH */
786: case (MDOC_Fl):
787: /* FALLTHROUGH */
1.60 ! schwarze 788: case (MDOC_Mt):
1.18 schwarze 789: /* FALLTHROUGH */
1.19 schwarze 790: case (MDOC_Nm):
791: /* FALLTHROUGH */
1.18 schwarze 792: case (MDOC_Pa):
1.1 kristaps 793: nc = 1;
794: break;
795: default:
796: nc = 0;
797: break;
798: }
799:
1.20 schwarze 800: for (arg = NULL;; ) {
1.1 kristaps 801: la = *pos;
1.36 schwarze 802: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 803:
1.36 schwarze 804: if (ARGV_WORD == av) {
1.1 kristaps 805: *pos = la;
806: break;
807: }
1.36 schwarze 808: if (ARGV_EOLN == av)
1.1 kristaps 809: break;
1.36 schwarze 810: if (ARGV_ARG == av)
1.1 kristaps 811: continue;
812:
813: mdoc_argv_free(arg);
814: return(0);
815: }
816:
1.45 schwarze 817: for (cnt = scope = 0;; ) {
1.1 kristaps 818: la = *pos;
1.36 schwarze 819: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 820:
1.36 schwarze 821: if (ARGS_ERROR == ac)
1.1 kristaps 822: return(0);
1.36 schwarze 823: if (ARGS_EOLN == ac)
1.1 kristaps 824: break;
1.36 schwarze 825: if (ARGS_PUNCT == ac)
1.1 kristaps 826: break;
827:
1.36 schwarze 828: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 829:
830: /*
831: * In this case, we've located a submacro and must
832: * execute it. Close out scope, if open. If no
833: * elements have been generated, either create one (nc)
834: * or raise a warning.
835: */
836:
1.36 schwarze 837: if (MDOC_MAX != ntok) {
1.45 schwarze 838: if (scope && ! rew_elem(m, tok))
1.1 kristaps 839: return(0);
840: if (nc && 0 == cnt) {
1.22 schwarze 841: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 842: return(0);
1.22 schwarze 843: if ( ! rew_last(m, m->last))
1.3 schwarze 844: return(0);
1.1 kristaps 845: } else if ( ! nc && 0 == cnt) {
846: mdoc_argv_free(arg);
1.44 schwarze 847: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.1 kristaps 848: return(0);
849: }
1.36 schwarze 850: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 851: return(0);
1.37 schwarze 852: if ( ! nl)
1.1 kristaps 853: return(1);
1.22 schwarze 854: return(append_delims(m, line, pos, buf));
1.21 schwarze 855: }
1.1 kristaps 856:
857: /*
858: * Non-quote-enclosed punctuation. Set up our scope, if
859: * a word; rewind the scope, if a delimiter; then append
860: * the word.
861: */
862:
1.40 schwarze 863: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 864:
1.45 schwarze 865: if (DELIM_NONE != d) {
866: /*
867: * If we encounter closing punctuation, no word
868: * has been omitted, no scope is open, and we're
869: * allowed to have an empty element, then start
870: * a new scope. `Ar', `Fl', and `Li', only do
871: * this once per invocation. There may be more
872: * of these (all of them?).
873: */
874: if (0 == cnt && (nc || MDOC_Li == tok) &&
875: DELIM_CLOSE == d && ! scope) {
876: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
877: return(0);
878: if (MDOC_Ar == tok || MDOC_Li == tok ||
879: MDOC_Fl == tok)
880: cnt++;
881: scope = 1;
882: }
883: /*
884: * Close out our scope, if one is open, before
885: * any punctuation.
886: */
887: if (scope && ! rew_elem(m, tok))
1.1 kristaps 888: return(0);
1.45 schwarze 889: scope = 0;
890: } else if ( ! scope) {
1.22 schwarze 891: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 892: return(0);
1.45 schwarze 893: scope = 1;
1.1 kristaps 894: }
895:
1.40 schwarze 896: if (DELIM_NONE == d)
1.1 kristaps 897: cnt++;
1.22 schwarze 898: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 899: return(0);
1.27 schwarze 900:
901: /*
902: * `Fl' macros have their scope re-opened with each new
903: * word so that the `-' can be added to each one without
904: * having to parse out spaces.
905: */
1.45 schwarze 906: if (scope && MDOC_Fl == tok) {
1.27 schwarze 907: if ( ! rew_elem(m, tok))
908: return(0);
1.45 schwarze 909: scope = 0;
1.27 schwarze 910: }
1.1 kristaps 911: }
912:
1.45 schwarze 913: if (scope && ! rew_elem(m, tok))
1.1 kristaps 914: return(0);
915:
916: /*
917: * If no elements have been collected and we're allowed to have
918: * empties (nc), open a scope and close it out. Otherwise,
919: * raise a warning.
920: */
1.32 schwarze 921:
1.1 kristaps 922: if (nc && 0 == cnt) {
1.22 schwarze 923: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 924: return(0);
1.22 schwarze 925: if ( ! rew_last(m, m->last))
1.3 schwarze 926: return(0);
927: } else if ( ! nc && 0 == cnt) {
1.1 kristaps 928: mdoc_argv_free(arg);
1.44 schwarze 929: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.1 kristaps 930: return(0);
931: }
932:
1.37 schwarze 933: if ( ! nl)
1.1 kristaps 934: return(1);
1.22 schwarze 935: return(append_delims(m, line, pos, buf));
1.1 kristaps 936: }
937:
938:
939: static int
940: blk_full(MACRO_PROT_ARGS)
941: {
1.43 schwarze 942: int la, nl;
1.1 kristaps 943: struct mdoc_arg *arg;
1.32 schwarze 944: struct mdoc_node *head; /* save of head macro */
1.34 schwarze 945: struct mdoc_node *body; /* save of body macro */
1.32 schwarze 946: struct mdoc_node *n;
1.46 schwarze 947: enum mdoc_type mtt;
1.36 schwarze 948: enum mdoct ntok;
1.37 schwarze 949: enum margserr ac, lac;
1.36 schwarze 950: enum margverr av;
1.1 kristaps 951: char *p;
952:
1.43 schwarze 953: nl = MDOC_NEWLINE & m->flags;
954:
1.32 schwarze 955: /* Close out prior implicit scope. */
1.12 schwarze 956:
1.1 kristaps 957: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.22 schwarze 958: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 959: return(0);
1.22 schwarze 960: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 961: return(0);
962: }
963:
1.32 schwarze 964: /*
965: * This routine accomodates implicitly- and explicitly-scoped
966: * macro openings. Implicit ones first close out prior scope
967: * (seen above). Delay opening the head until necessary to
968: * allow leading punctuation to print. Special consideration
969: * for `It -column', which has phrase-part syntax instead of
970: * regular child nodes.
971: */
972:
1.1 kristaps 973: for (arg = NULL;; ) {
1.32 schwarze 974: la = *pos;
1.36 schwarze 975: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 976:
1.36 schwarze 977: if (ARGV_WORD == av) {
1.32 schwarze 978: *pos = la;
1.1 kristaps 979: break;
980: }
981:
1.36 schwarze 982: if (ARGV_EOLN == av)
1.1 kristaps 983: break;
1.36 schwarze 984: if (ARGV_ARG == av)
1.1 kristaps 985: continue;
986:
987: mdoc_argv_free(arg);
988: return(0);
989: }
990:
1.22 schwarze 991: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 992: return(0);
993:
1.34 schwarze 994: head = body = NULL;
1.1 kristaps 995:
1.32 schwarze 996: /*
997: * The `Nd' macro has all arguments in its body: it's a hybrid
998: * of block partial-explicit and full-implicit. Stupid.
999: */
1.12 schwarze 1000:
1.32 schwarze 1001: if (MDOC_Nd == tok) {
1002: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1003: return(0);
1004: head = m->last;
1.22 schwarze 1005: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.12 schwarze 1006: return(0);
1.22 schwarze 1007: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.12 schwarze 1008: return(0);
1.34 schwarze 1009: body = m->last;
1.12 schwarze 1010: }
1011:
1.37 schwarze 1012: ac = ARGS_ERROR;
1013:
1.41 schwarze 1014: for ( ; ; ) {
1.32 schwarze 1015: la = *pos;
1.46 schwarze 1016: /* Initialise last-phrase-type with ARGS_PEND. */
1017: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.36 schwarze 1018: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.52 schwarze 1019:
1020: if (ARGS_PUNCT == ac)
1021: break;
1.1 kristaps 1022:
1.36 schwarze 1023: if (ARGS_ERROR == ac)
1.1 kristaps 1024: return(0);
1.46 schwarze 1025:
1026: if (ARGS_EOLN == ac) {
1027: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1028: break;
1029: /*
1030: * This is necessary: if the last token on a
1031: * line is a `Ta' or tab, then we'll get
1032: * ARGS_EOLN, so we must be smart enough to
1033: * reopen our scope if the last parse was a
1034: * phrase or partial phrase.
1035: */
1036: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1037: return(0);
1038: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1039: return(0);
1040: body = m->last;
1.1 kristaps 1041: break;
1.41 schwarze 1042: }
1043:
1.46 schwarze 1044: /*
1045: * Emit leading punctuation (i.e., punctuation before
1046: * the MDOC_HEAD) for non-phrase types.
1047: */
1.32 schwarze 1048:
1.37 schwarze 1049: if (NULL == head &&
1.46 schwarze 1050: ARGS_PEND != ac &&
1.37 schwarze 1051: ARGS_PHRASE != ac &&
1.36 schwarze 1052: ARGS_PPHRASE != ac &&
1053: ARGS_QWORD != ac &&
1.40 schwarze 1054: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1055: if ( ! mdoc_word_alloc(m, line, la, p))
1056: return(0);
1057: continue;
1058: }
1059:
1.46 schwarze 1060: /* Open a head if one hasn't been opened. */
1.32 schwarze 1061:
1.46 schwarze 1062: if (NULL == head) {
1.32 schwarze 1063: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1064: return(0);
1.29 schwarze 1065: head = m->last;
1.32 schwarze 1066: }
1067:
1.46 schwarze 1068: if (ARGS_PHRASE == ac ||
1069: ARGS_PEND == ac ||
1070: ARGS_PPHRASE == ac) {
1071: /*
1072: * If we haven't opened a body yet, rewind the
1073: * head; if we have, rewind that instead.
1074: */
1075:
1076: mtt = body ? MDOC_BODY : MDOC_HEAD;
1077: if ( ! rew_sub(mtt, m, tok, line, ppos))
1078: return(0);
1079:
1080: /* Then allocate our body context. */
1081:
1082: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1083: return(0);
1084: body = m->last;
1085:
1086: /*
1087: * Process phrases: set whether we're in a
1088: * partial-phrase (this effects line handling)
1089: * then call down into the phrase parser.
1090: */
1091:
1.41 schwarze 1092: if (ARGS_PPHRASE == ac)
1093: m->flags |= MDOC_PPHRASE;
1.46 schwarze 1094: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1095: m->flags |= MDOC_PPHRASE;
1096:
1097: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1098: return(0);
1.46 schwarze 1099:
1.41 schwarze 1100: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1101: continue;
1102: }
1103:
1.36 schwarze 1104: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1105:
1106: if (MDOC_MAX == ntok) {
1107: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1108: return(0);
1.36 schwarze 1109: continue;
1.32 schwarze 1110: }
1.36 schwarze 1111:
1112: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1113: return(0);
1.36 schwarze 1114: break;
1.32 schwarze 1115: }
1.1 kristaps 1116:
1.32 schwarze 1117: if (NULL == head) {
1118: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1119: return(0);
1.32 schwarze 1120: head = m->last;
1.1 kristaps 1121: }
1122:
1.43 schwarze 1123: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1124: return(0);
1.12 schwarze 1125:
1.34 schwarze 1126: /* If we've already opened our body, exit now. */
1.32 schwarze 1127:
1.34 schwarze 1128: if (NULL != body)
1.46 schwarze 1129: goto out;
1.29 schwarze 1130:
1131: /*
1.34 schwarze 1132: * If there is an open (i.e., unvalidated) sub-block requiring
1133: * explicit close-out, postpone switching the current block from
1134: * head to body until the rew_sub() call closing out that
1135: * sub-block.
1.29 schwarze 1136: */
1137: for (n = m->last; n && n != head; n = n->parent) {
1.34 schwarze 1138: if (MDOC_BLOCK == n->type &&
1139: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1140: ! (MDOC_VALID & n->flags)) {
1.29 schwarze 1141: n->pending = head;
1142: return(1);
1143: }
1144: }
1.54 schwarze 1145:
1.32 schwarze 1146: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1147:
1.22 schwarze 1148: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1149: return(0);
1.22 schwarze 1150: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1151: return(0);
1152:
1.46 schwarze 1153: out:
1154: if ( ! (MDOC_FREECOL & m->flags))
1155: return(1);
1156:
1157: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1158: return(0);
1159: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1160: return(0);
1161:
1162: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1163: return(1);
1164: }
1165:
1166:
1167: static int
1168: blk_part_imp(MACRO_PROT_ARGS)
1169: {
1.43 schwarze 1170: int la, nl;
1.36 schwarze 1171: enum mdoct ntok;
1172: enum margserr ac;
1.1 kristaps 1173: char *p;
1.32 schwarze 1174: struct mdoc_node *blk; /* saved block context */
1175: struct mdoc_node *body; /* saved body context */
1176: struct mdoc_node *n;
1.1 kristaps 1177:
1.43 schwarze 1178: nl = MDOC_NEWLINE & m->flags;
1179:
1.32 schwarze 1180: /*
1181: * A macro that spans to the end of the line. This is generally
1182: * (but not necessarily) called as the first macro. The block
1183: * has a head as the immediate child, which is always empty,
1184: * followed by zero or more opening punctuation nodes, then the
1185: * body (which may be empty, depending on the macro), then zero
1186: * or more closing punctuation nodes.
1187: */
1.22 schwarze 1188:
1189: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1190: return(0);
1.32 schwarze 1191:
1.22 schwarze 1192: blk = m->last;
1.32 schwarze 1193:
1.22 schwarze 1194: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1195: return(0);
1.22 schwarze 1196: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1197: return(0);
1198:
1.32 schwarze 1199: /*
1200: * Open the body scope "on-demand", that is, after we've
1201: * processed all our the leading delimiters (open parenthesis,
1202: * etc.).
1203: */
1.1 kristaps 1204:
1.32 schwarze 1205: for (body = NULL; ; ) {
1.22 schwarze 1206: la = *pos;
1.36 schwarze 1207: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.32 schwarze 1208:
1.36 schwarze 1209: if (ARGS_ERROR == ac)
1.1 kristaps 1210: return(0);
1.36 schwarze 1211: if (ARGS_EOLN == ac)
1.32 schwarze 1212: break;
1.36 schwarze 1213: if (ARGS_PUNCT == ac)
1.1 kristaps 1214: break;
1215:
1.36 schwarze 1216: if (NULL == body && ARGS_QWORD != ac &&
1.40 schwarze 1217: DELIM_OPEN == mdoc_isdelim(p)) {
1.22 schwarze 1218: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1219: return(0);
1220: continue;
1221: }
1222:
1.32 schwarze 1223: if (NULL == body) {
1224: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1225: return(0);
1226: body = m->last;
1227: }
1228:
1.36 schwarze 1229: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1230:
1231: if (MDOC_MAX == ntok) {
1232: if ( ! mdoc_word_alloc(m, line, la, p))
1.32 schwarze 1233: return(0);
1.36 schwarze 1234: continue;
1235: }
1.32 schwarze 1236:
1.36 schwarze 1237: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1238: return(0);
1.36 schwarze 1239: break;
1.32 schwarze 1240: }
1241:
1242: /* Clean-ups to leave in a consistent state. */
1243:
1244: if (NULL == body) {
1245: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1246: return(0);
1.32 schwarze 1247: body = m->last;
1.39 schwarze 1248: }
1249:
1250: for (n = body->child; n && n->next; n = n->next)
1251: /* Do nothing. */ ;
1252:
1253: /*
1254: * End of sentence spacing: if the last node is a text node and
1255: * has a trailing period, then mark it as being end-of-sentence.
1256: */
1257:
1258: if (n && MDOC_TEXT == n->type && n->string)
1.55 schwarze 1259: if (mandoc_eos(n->string, strlen(n->string), 1))
1.39 schwarze 1260: n->flags |= MDOC_EOS;
1261:
1262: /* Up-propogate the end-of-space flag. */
1263:
1264: if (n && (MDOC_EOS & n->flags)) {
1265: body->flags |= MDOC_EOS;
1266: body->parent->flags |= MDOC_EOS;
1.1 kristaps 1267: }
1268:
1.47 schwarze 1269: /*
1270: * If there is an open sub-block requiring explicit close-out,
1271: * postpone closing out the current block
1272: * until the rew_sub() call closing out the sub-block.
1273: */
1274: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1275: if (MDOC_BLOCK == n->type &&
1276: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1277: ! (MDOC_VALID & n->flags)) {
1.59 schwarze 1278: make_pending(n, tok, m, line, ppos);
1.47 schwarze 1279: if ( ! mdoc_endbody_alloc(m, line, ppos,
1280: tok, body, ENDBODY_NOSPACE))
1281: return(0);
1282: return(1);
1283: }
1284: }
1285:
1.22 schwarze 1286: /*
1287: * If we can't rewind to our body, then our scope has already
1288: * been closed by another macro (like `Oc' closing `Op'). This
1289: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.34 schwarze 1290: * crufty use of `Op' breakage.
1.1 kristaps 1291: */
1.51 schwarze 1292: if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPENEST,
1293: line, ppos, "%s broken", mdoc_macronames[tok]))
1.22 schwarze 1294: return(0);
1.32 schwarze 1295:
1.47 schwarze 1296: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 schwarze 1297: return(0);
1.1 kristaps 1298:
1.22 schwarze 1299: /* Standard appending of delimiters. */
1.1 kristaps 1300:
1.43 schwarze 1301: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1302: return(0);
1303:
1.22 schwarze 1304: /* Rewind scope, if applicable. */
1.1 kristaps 1305:
1.47 schwarze 1306: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1307: return(0);
1308:
1309: return(1);
1310: }
1311:
1312:
1313: static int
1314: blk_part_exp(MACRO_PROT_ARGS)
1315: {
1.37 schwarze 1316: int la, nl;
1.36 schwarze 1317: enum margserr ac;
1.32 schwarze 1318: struct mdoc_node *head; /* keep track of head */
1319: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1320: char *p;
1.36 schwarze 1321: enum mdoct ntok;
1.1 kristaps 1322:
1.37 schwarze 1323: nl = MDOC_NEWLINE & m->flags;
1324:
1.32 schwarze 1325: /*
1326: * The opening of an explicit macro having zero or more leading
1327: * punctuation nodes; a head with optional single element (the
1328: * case of `Eo'); and a body that may be empty.
1329: */
1.22 schwarze 1330:
1331: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1332: return(0);
1.22 schwarze 1333:
1.32 schwarze 1334: for (head = body = NULL; ; ) {
1.22 schwarze 1335: la = *pos;
1.36 schwarze 1336: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1337:
1.36 schwarze 1338: if (ARGS_ERROR == ac)
1.1 kristaps 1339: return(0);
1.36 schwarze 1340: if (ARGS_PUNCT == ac)
1.1 kristaps 1341: break;
1.36 schwarze 1342: if (ARGS_EOLN == ac)
1.1 kristaps 1343: break;
1344:
1.32 schwarze 1345: /* Flush out leading punctuation. */
1346:
1.36 schwarze 1347: if (NULL == head && ARGS_QWORD != ac &&
1.40 schwarze 1348: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1349: assert(NULL == body);
1350: if ( ! mdoc_word_alloc(m, line, la, p))
1351: return(0);
1352: continue;
1353: }
1354:
1355: if (NULL == head) {
1356: assert(NULL == body);
1357: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1358: return(0);
1.32 schwarze 1359: head = m->last;
1.1 kristaps 1360: }
1361:
1.32 schwarze 1362: /*
1363: * `Eo' gobbles any data into the head, but most other
1364: * macros just immediately close out and begin the body.
1365: */
1366:
1367: if (NULL == body) {
1368: assert(head);
1369: /* No check whether it's a macro! */
1370: if (MDOC_Eo == tok)
1371: if ( ! mdoc_word_alloc(m, line, la, p))
1372: return(0);
1373:
1.22 schwarze 1374: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1375: return(0);
1.22 schwarze 1376: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1377: return(0);
1.32 schwarze 1378: body = m->last;
1379:
1380: if (MDOC_Eo == tok)
1381: continue;
1382: }
1383:
1384: assert(NULL != head && NULL != body);
1385:
1.36 schwarze 1386: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1387:
1388: if (MDOC_MAX == ntok) {
1389: if ( ! mdoc_word_alloc(m, line, la, p))
1.32 schwarze 1390: return(0);
1.36 schwarze 1391: continue;
1.1 kristaps 1392: }
1.32 schwarze 1393:
1.36 schwarze 1394: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1395: return(0);
1.36 schwarze 1396: break;
1.1 kristaps 1397: }
1398:
1.32 schwarze 1399: /* Clean-up to leave in a consistent state. */
1400:
1401: if (NULL == head) {
1402: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1403: return(0);
1404: head = m->last;
1405: }
1.22 schwarze 1406:
1.32 schwarze 1407: if (NULL == body) {
1.22 schwarze 1408: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1409: return(0);
1.22 schwarze 1410: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1411: return(0);
1.32 schwarze 1412: body = m->last;
1.1 kristaps 1413: }
1414:
1.22 schwarze 1415: /* Standard appending of delimiters. */
1416:
1.37 schwarze 1417: if ( ! nl)
1.1 kristaps 1418: return(1);
1.22 schwarze 1419: return(append_delims(m, line, pos, buf));
1.1 kristaps 1420: }
1421:
1422:
1.37 schwarze 1423: /* ARGSUSED */
1.1 kristaps 1424: static int
1425: in_line_argn(MACRO_PROT_ARGS)
1426: {
1.37 schwarze 1427: int la, flushed, j, maxargs, nl;
1.36 schwarze 1428: enum margserr ac;
1429: enum margverr av;
1430: struct mdoc_arg *arg;
1431: char *p;
1432: enum mdoct ntok;
1.1 kristaps 1433:
1.37 schwarze 1434: nl = MDOC_NEWLINE & m->flags;
1435:
1.32 schwarze 1436: /*
1437: * A line macro that has a fixed number of arguments (maxargs).
1438: * Only open the scope once the first non-leading-punctuation is
1439: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1440: * keep it open until the maximum number of arguments are
1441: * exhausted.
1442: */
1.1 kristaps 1443:
1444: switch (tok) {
1445: case (MDOC_Ap):
1446: /* FALLTHROUGH */
1447: case (MDOC_No):
1448: /* FALLTHROUGH */
1449: case (MDOC_Ns):
1450: /* FALLTHROUGH */
1451: case (MDOC_Ux):
1452: maxargs = 0;
1453: break;
1.28 schwarze 1454: case (MDOC_Xr):
1455: maxargs = 2;
1456: break;
1.1 kristaps 1457: default:
1458: maxargs = 1;
1459: break;
1460: }
1461:
1.32 schwarze 1462: for (arg = NULL; ; ) {
1.22 schwarze 1463: la = *pos;
1.36 schwarze 1464: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1465:
1.36 schwarze 1466: if (ARGV_WORD == av) {
1.22 schwarze 1467: *pos = la;
1.1 kristaps 1468: break;
1469: }
1470:
1.36 schwarze 1471: if (ARGV_EOLN == av)
1.1 kristaps 1472: break;
1.36 schwarze 1473: if (ARGV_ARG == av)
1.1 kristaps 1474: continue;
1475:
1476: mdoc_argv_free(arg);
1477: return(0);
1478: }
1479:
1.32 schwarze 1480: for (flushed = j = 0; ; ) {
1.22 schwarze 1481: la = *pos;
1.36 schwarze 1482: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1483:
1.36 schwarze 1484: if (ARGS_ERROR == ac)
1.1 kristaps 1485: return(0);
1.36 schwarze 1486: if (ARGS_PUNCT == ac)
1.1 kristaps 1487: break;
1.36 schwarze 1488: if (ARGS_EOLN == ac)
1.1 kristaps 1489: break;
1490:
1.32 schwarze 1491: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1492: ARGS_QWORD != ac &&
1.40 schwarze 1493: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1494: if ( ! mdoc_word_alloc(m, line, la, p))
1495: return(0);
1496: continue;
1.40 schwarze 1497: } else if (0 == j)
1.32 schwarze 1498: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1499: return(0);
1500:
1501: if (j == maxargs && ! flushed) {
1502: if ( ! rew_elem(m, tok))
1503: return(0);
1504: flushed = 1;
1505: }
1506:
1.36 schwarze 1507: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1508:
1509: if (MDOC_MAX != ntok) {
1.22 schwarze 1510: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1511: return(0);
1512: flushed = 1;
1.36 schwarze 1513: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1514: return(0);
1.32 schwarze 1515: j++;
1.1 kristaps 1516: break;
1517: }
1518:
1519: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1520: ARGS_QWORD != ac &&
1.40 schwarze 1521: ! flushed &&
1522: DELIM_NONE != mdoc_isdelim(p)) {
1.22 schwarze 1523: if ( ! rew_elem(m, tok))
1.1 kristaps 1524: return(0);
1525: flushed = 1;
1526: }
1.28 schwarze 1527:
1528: /*
1529: * XXX: this is a hack to work around groff's ugliness
1530: * as regards `Xr' and extraneous arguments. It should
1531: * ideally be deprecated behaviour, but because this is
1532: * code is no here, it's unlikely to be removed.
1533: */
1534: if (MDOC_Xr == tok && j == maxargs) {
1.32 schwarze 1535: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.28 schwarze 1536: return(0);
1537: if ( ! rew_elem(m, MDOC_Ns))
1538: return(0);
1539: }
1540:
1.22 schwarze 1541: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1542: return(0);
1.32 schwarze 1543: j++;
1.1 kristaps 1544: }
1545:
1.32 schwarze 1546: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1547: return(0);
1548:
1549: /* Close out in a consistent state. */
1.22 schwarze 1550:
1551: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1552: return(0);
1.37 schwarze 1553: if ( ! nl)
1.1 kristaps 1554: return(1);
1.22 schwarze 1555: return(append_delims(m, line, pos, buf));
1.1 kristaps 1556: }
1557:
1558:
1559: static int
1560: in_line_eoln(MACRO_PROT_ARGS)
1561: {
1.36 schwarze 1562: int la;
1563: enum margserr ac;
1564: enum margverr av;
1565: struct mdoc_arg *arg;
1566: char *p;
1567: enum mdoct ntok;
1.1 kristaps 1568:
1569: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1570:
1.53 schwarze 1571: if (tok == MDOC_Pp)
1572: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1573:
1.22 schwarze 1574: /* Parse macro arguments. */
1.1 kristaps 1575:
1.22 schwarze 1576: for (arg = NULL; ; ) {
1.1 kristaps 1577: la = *pos;
1.36 schwarze 1578: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1579:
1.36 schwarze 1580: if (ARGV_WORD == av) {
1.1 kristaps 1581: *pos = la;
1582: break;
1583: }
1.36 schwarze 1584: if (ARGV_EOLN == av)
1.1 kristaps 1585: break;
1.36 schwarze 1586: if (ARGV_ARG == av)
1.1 kristaps 1587: continue;
1588:
1589: mdoc_argv_free(arg);
1590: return(0);
1591: }
1592:
1.22 schwarze 1593: /* Open element scope. */
1594:
1595: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1596: return(0);
1597:
1.22 schwarze 1598: /* Parse argument terms. */
1.1 kristaps 1599:
1600: for (;;) {
1601: la = *pos;
1.36 schwarze 1602: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1603:
1.36 schwarze 1604: if (ARGS_ERROR == ac)
1.1 kristaps 1605: return(0);
1.36 schwarze 1606: if (ARGS_EOLN == ac)
1.1 kristaps 1607: break;
1608:
1.36 schwarze 1609: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1610:
1.36 schwarze 1611: if (MDOC_MAX == ntok) {
1612: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1613: return(0);
1.36 schwarze 1614: continue;
1615: }
1.1 kristaps 1616:
1.36 schwarze 1617: if ( ! rew_elem(m, tok))
1.1 kristaps 1618: return(0);
1.36 schwarze 1619: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1620: }
1621:
1.22 schwarze 1622: /* Close out (no delimiters). */
1623:
1624: return(rew_elem(m, tok));
1.28 schwarze 1625: }
1626:
1627:
1628: /* ARGSUSED */
1629: static int
1630: ctx_synopsis(MACRO_PROT_ARGS)
1631: {
1.37 schwarze 1632: int nl;
1633:
1634: nl = MDOC_NEWLINE & m->flags;
1.28 schwarze 1635:
1636: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.53 schwarze 1637: if ( ! (MDOC_SYNOPSIS & m->flags))
1.28 schwarze 1638: return(in_line(m, tok, line, ppos, pos, buf));
1639:
1640: /* If we're a nested call, same place. */
1.37 schwarze 1641: if ( ! nl)
1.28 schwarze 1642: return(in_line(m, tok, line, ppos, pos, buf));
1643:
1644: /*
1645: * XXX: this will open a block scope; however, if later we end
1646: * up formatting the block scope, then child nodes will inherit
1647: * the formatting. Be careful.
1648: */
1.51 schwarze 1649: if (MDOC_Nm == tok)
1650: return(blk_full(m, tok, line, ppos, pos, buf));
1651: assert(MDOC_Vt == tok);
1.28 schwarze 1652: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.1 kristaps 1653: }
1654:
1655:
1656: /* ARGSUSED */
1657: static int
1658: obsolete(MACRO_PROT_ARGS)
1659: {
1660:
1.44 schwarze 1661: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1662: }
1663:
1664:
1.17 schwarze 1665: /*
1666: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1667: * They're unusual because they're basically free-form text until a
1668: * macro is encountered.
1669: */
1.1 kristaps 1670: static int
1.46 schwarze 1671: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1672: {
1.36 schwarze 1673: int la, pos;
1.46 schwarze 1674: enum margserr ac;
1.36 schwarze 1675: enum mdoct ntok;
1676: char *p;
1.1 kristaps 1677:
1.17 schwarze 1678: for (pos = ppos; ; ) {
1679: la = pos;
1.1 kristaps 1680:
1.46 schwarze 1681: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1682:
1.46 schwarze 1683: if (ARGS_ERROR == ac)
1.17 schwarze 1684: return(0);
1.46 schwarze 1685: if (ARGS_EOLN == ac)
1.17 schwarze 1686: break;
1.1 kristaps 1687:
1.46 schwarze 1688: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1689:
1.36 schwarze 1690: if (MDOC_MAX == ntok) {
1691: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1692: return(0);
1.36 schwarze 1693: continue;
1694: }
1.1 kristaps 1695:
1.36 schwarze 1696: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1697: return(0);
1.36 schwarze 1698: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1699: }
1700:
1701: return(1);
1702: }
1.17 schwarze 1703:
1704:
1.46 schwarze 1705: /* ARGSUSED */
1706: static int
1707: phrase_ta(MACRO_PROT_ARGS)
1708: {
1709: int la;
1710: enum mdoct ntok;
1711: enum margserr ac;
1712: char *p;
1713:
1714: /*
1715: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1716: * it should simply error out with ARGSLOST.
1717: */
1718:
1719: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1720: return(0);
1721: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1722: return(0);
1723:
1724: for (;;) {
1725: la = *pos;
1726: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1727:
1728: if (ARGS_ERROR == ac)
1729: return(0);
1730: if (ARGS_EOLN == ac)
1731: break;
1732:
1733: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1734:
1735: if (MDOC_MAX == ntok) {
1736: if ( ! mdoc_word_alloc(m, line, la, p))
1737: return(0);
1738: continue;
1739: }
1740:
1741: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1742: return(0);
1743: return(append_delims(m, line, pos, buf));
1744: }
1745:
1746: return(1);
1747: }
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