Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.59
1.59 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.58 2010/10/16 13:38:29 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: if ( ! mdoc_action_post(mdoc))
262: return(0);
263: mdoc->last = mdoc->last->parent;
264: assert(mdoc->last);
265: }
266:
267: if ( ! mdoc_valid_post(mdoc))
268: return(0);
269: return(mdoc_action_post(mdoc));
270: }
271:
272:
1.22 schwarze 273: /*
1.48 schwarze 274: * For a block closing macro, return the corresponding opening one.
275: * Otherwise, return the macro itself.
1.22 schwarze 276: */
1.34 schwarze 277: static enum mdoct
278: rew_alt(enum mdoct tok)
1.1 kristaps 279: {
280: switch (tok) {
281: case (MDOC_Ac):
282: return(MDOC_Ao);
283: case (MDOC_Bc):
284: return(MDOC_Bo);
285: case (MDOC_Brc):
286: return(MDOC_Bro);
287: case (MDOC_Dc):
288: return(MDOC_Do);
289: case (MDOC_Ec):
290: return(MDOC_Eo);
291: case (MDOC_Ed):
292: return(MDOC_Bd);
293: case (MDOC_Ef):
294: return(MDOC_Bf);
295: case (MDOC_Ek):
296: return(MDOC_Bk);
297: case (MDOC_El):
298: return(MDOC_Bl);
299: case (MDOC_Fc):
300: return(MDOC_Fo);
301: case (MDOC_Oc):
302: return(MDOC_Oo);
303: case (MDOC_Pc):
304: return(MDOC_Po);
305: case (MDOC_Qc):
306: return(MDOC_Qo);
307: case (MDOC_Re):
308: return(MDOC_Rs);
309: case (MDOC_Sc):
310: return(MDOC_So);
311: case (MDOC_Xc):
312: return(MDOC_Xo);
1.58 schwarze 313: case (MDOC_TE):
314: return(MDOC_TS);
1.1 kristaps 315: default:
1.48 schwarze 316: return(tok);
1.1 kristaps 317: }
318: /* NOTREACHED */
319: }
320:
321:
1.48 schwarze 322: /*
323: * Rewinding to tok, how do we have to handle *p?
324: * REWIND_NONE: *p would delimit tok, but no tok scope is open
325: * inside *p, so there is no need to rewind anything at all.
326: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
327: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.59 ! schwarze 328: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.48 schwarze 329: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
330: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 331: */
1.35 schwarze 332: static enum rew
1.34 schwarze 333: rew_dohalt(enum mdoct tok, enum mdoc_type type,
334: const struct mdoc_node *p)
1.1 kristaps 335: {
336:
1.50 schwarze 337: /*
338: * No matching token, no delimiting block, no broken block.
339: * This can happen when full implicit macros are called for
340: * the first time but try to rewind their previous
341: * instance anyway.
342: */
1.1 kristaps 343: if (MDOC_ROOT == p->type)
1.48 schwarze 344: return(MDOC_BLOCK == type &&
345: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
346: REWIND_ERROR : REWIND_NONE);
1.50 schwarze 347:
348: /*
349: * When starting to rewind, skip plain text
350: * and nodes that have already been rewound.
351: */
1.48 schwarze 352: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
353: return(REWIND_MORE);
354:
1.50 schwarze 355: /*
356: * The easiest case: Found a matching token.
357: * This applies to both blocks and elements.
358: */
1.48 schwarze 359: tok = rew_alt(tok);
360: if (tok == p->tok)
361: return(p->end ? REWIND_NONE :
362: type == p->type ? REWIND_THIS : REWIND_MORE);
363:
1.50 schwarze 364: /*
365: * While elements do require rewinding for themselves,
366: * they never affect rewinding of other nodes.
367: */
1.48 schwarze 368: if (MDOC_ELEM == p->type)
369: return(REWIND_MORE);
1.1 kristaps 370:
1.50 schwarze 371: /*
372: * Blocks delimited by our target token get REWIND_MORE.
373: * Blocks delimiting our target token get REWIND_NONE.
374: */
1.1 kristaps 375: switch (tok) {
1.48 schwarze 376: case (MDOC_Bl):
377: if (MDOC_It == p->tok)
378: return(REWIND_MORE);
1.1 kristaps 379: break;
380: case (MDOC_It):
381: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.48 schwarze 382: return(REWIND_NONE);
1.1 kristaps 383: break;
1.48 schwarze 384: /*
385: * XXX Badly nested block handling still fails badly
386: * when one block is breaking two blocks of the same type.
387: * This is an incomplete and extremely ugly workaround,
388: * required to let the OpenBSD tree build.
389: */
390: case (MDOC_Oo):
391: if (MDOC_Op == p->tok)
392: return(REWIND_MORE);
1.1 kristaps 393: break;
1.51 schwarze 394: case (MDOC_Nm):
395: return(REWIND_NONE);
1.12 schwarze 396: case (MDOC_Nd):
397: /* FALLTHROUGH */
1.1 kristaps 398: case (MDOC_Ss):
399: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.48 schwarze 400: return(REWIND_NONE);
1.1 kristaps 401: /* FALLTHROUGH */
402: case (MDOC_Sh):
1.48 schwarze 403: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
404: MDOC_Sh == p->tok)
405: return(REWIND_MORE);
1.1 kristaps 406: break;
407: default:
408: break;
409: }
410:
1.50 schwarze 411: /*
412: * Default block rewinding rules.
1.51 schwarze 413: * In particular, always skip block end markers,
414: * and let all blocks rewind Nm children.
1.50 schwarze 415: */
1.54 schwarze 416: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
1.51 schwarze 417: (MDOC_BLOCK == p->type &&
1.50 schwarze 418: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
419: return(REWIND_MORE);
420:
421: /*
1.59 ! schwarze 422: * By default, closing out full blocks
! 423: * forces closing of broken explicit blocks,
! 424: * while closing out partial blocks
! 425: * allows delayed rewinding by default.
1.50 schwarze 426: */
1.59 ! schwarze 427: return (&blk_full == mdoc_macros[tok].fp ?
! 428: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 429: }
430:
431:
432: static int
1.34 schwarze 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:
1.47 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:
1.48 schwarze 478: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.47 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;
1.51 schwarze 510: mdoc_vmsg(m, MANDOCERR_SCOPENEST, line, ppos,
511: "%s breaks %s", mdoc_macronames[tok],
512: mdoc_macronames[broken->tok]);
1.47 schwarze 513: return(1);
514: }
515:
516: /*
517: * Found no matching block for tok.
518: * Are you trying to close a block that is not open?
519: */
520: return(0);
521: }
522:
1.48 schwarze 523:
1.1 kristaps 524: static int
1.22 schwarze 525: rew_sub(enum mdoc_type t, struct mdoc *m,
1.34 schwarze 526: enum mdoct tok, int line, int ppos)
1.1 kristaps 527: {
528: struct mdoc_node *n;
529:
1.48 schwarze 530: n = m->last;
531: while (n) {
532: switch (rew_dohalt(tok, t, n)) {
533: case (REWIND_NONE):
534: return(1);
535: case (REWIND_THIS):
536: break;
1.59 ! schwarze 537: case (REWIND_FORCE):
! 538: mdoc_vmsg(m, MANDOCERR_SCOPEBROKEN, line, ppos,
! 539: "%s breaks %s", mdoc_macronames[tok],
! 540: mdoc_macronames[n->tok]);
! 541: /* FALLTHROUGH */
1.48 schwarze 542: case (REWIND_MORE):
543: n = n->parent;
544: continue;
545: case (REWIND_LATER):
1.59 ! schwarze 546: if (make_pending(n, tok, m, line, ppos) ||
! 547: MDOC_BLOCK != t)
! 548: return(1);
! 549: /* FALLTHROUGH */
1.48 schwarze 550: case (REWIND_ERROR):
1.59 ! schwarze 551: mdoc_pmsg(m, line, ppos, MANDOCERR_NOSCOPE);
! 552: return(1);
1.22 schwarze 553: }
1.48 schwarze 554: break;
1.1 kristaps 555: }
556:
557: assert(n);
1.29 schwarze 558: if ( ! rew_last(m, n))
559: return(0);
560:
561: /*
1.47 schwarze 562: * The current block extends an enclosing block.
563: * Now that the current block ends, close the enclosing block, too.
1.29 schwarze 564: */
1.47 schwarze 565: while (NULL != (n = n->pending)) {
1.29 schwarze 566: if ( ! rew_last(m, n))
567: return(0);
1.47 schwarze 568: if (MDOC_HEAD == n->type &&
569: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.29 schwarze 570: return(0);
571: }
1.54 schwarze 572:
1.29 schwarze 573: return(1);
1.1 kristaps 574: }
575:
576:
577: static int
1.42 schwarze 578: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 579: {
1.42 schwarze 580: int la;
1.36 schwarze 581: enum margserr ac;
1.1 kristaps 582: char *p;
583:
1.42 schwarze 584: if ('\0' == buf[*pos])
1.1 kristaps 585: return(1);
586:
587: for (;;) {
1.42 schwarze 588: la = *pos;
589: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 590:
1.36 schwarze 591: if (ARGS_ERROR == ac)
1.1 kristaps 592: return(0);
1.36 schwarze 593: else if (ARGS_EOLN == ac)
1.1 kristaps 594: break;
1.42 schwarze 595:
1.40 schwarze 596: assert(DELIM_NONE != mdoc_isdelim(p));
1.42 schwarze 597: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 598: return(0);
1.43 schwarze 599:
1.42 schwarze 600: /*
601: * If we encounter end-of-sentence symbols, then trigger
602: * the double-space.
603: *
604: * XXX: it's easy to allow this to propogate outward to
605: * the last symbol, such that `. )' will cause the
606: * correct double-spacing. However, (1) groff isn't
607: * smart enough to do this and (2) it would require
608: * knowing which symbols break this behaviour, for
609: * example, `. ;' shouldn't propogate the double-space.
610: */
1.55 schwarze 611: if (mandoc_eos(p, strlen(p), 0))
1.42 schwarze 612: m->last->flags |= MDOC_EOS;
1.1 kristaps 613: }
614:
615: return(1);
616: }
617:
618:
619: /*
620: * Close out block partial/full explicit.
621: */
622: static int
623: blk_exp_close(MACRO_PROT_ARGS)
624: {
1.47 schwarze 625: struct mdoc_node *body; /* Our own body. */
626: struct mdoc_node *later; /* A sub-block starting later. */
627: struct mdoc_node *n; /* For searching backwards. */
628:
1.37 schwarze 629: int j, lastarg, maxargs, flushed, nl;
1.36 schwarze 630: enum margserr ac;
1.47 schwarze 631: enum mdoct atok, ntok;
1.1 kristaps 632: char *p;
633:
1.37 schwarze 634: nl = MDOC_NEWLINE & m->flags;
635:
1.1 kristaps 636: switch (tok) {
637: case (MDOC_Ec):
638: maxargs = 1;
639: break;
640: default:
641: maxargs = 0;
642: break;
643: }
644:
1.47 schwarze 645: /*
646: * Search backwards for beginnings of blocks,
647: * both of our own and of pending sub-blocks.
648: */
649: atok = rew_alt(tok);
650: body = later = NULL;
651: for (n = m->last; n; n = n->parent) {
652: if (MDOC_VALID & n->flags)
653: continue;
654:
655: /* Remember the start of our own body. */
656: if (MDOC_BODY == n->type && atok == n->tok) {
1.54 schwarze 657: if (ENDBODY_NOT == n->end)
1.47 schwarze 658: body = n;
659: continue;
660: }
661:
1.51 schwarze 662: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.47 schwarze 663: continue;
664: if (atok == n->tok) {
665: assert(body);
666:
667: /*
668: * Found the start of our own block.
669: * When there is no pending sub block,
670: * just proceed to closing out.
671: */
672: if (NULL == later)
673: break;
674:
675: /*
676: * When there is a pending sub block,
677: * postpone closing out the current block
678: * until the rew_sub() closing out the sub-block.
679: */
1.59 ! schwarze 680: make_pending(later, tok, m, line, ppos);
1.47 schwarze 681:
682: /*
683: * Mark the place where the formatting - but not
684: * the scope - of the current block ends.
685: */
686: if ( ! mdoc_endbody_alloc(m, line, ppos,
687: atok, body, ENDBODY_SPACE))
688: return(0);
689: break;
690: }
691:
692: /*
693: * When finding an open sub block, remember the last
694: * open explicit block, or, in case there are only
695: * implicit ones, the first open implicit block.
696: */
697: if (later &&
698: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
699: continue;
700: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags) {
701: assert( ! (MDOC_ACTED & n->flags));
702: later = n;
703: }
704: }
705:
1.1 kristaps 706: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.44 schwarze 707: /* FIXME: do this in validate */
1.14 schwarze 708: if (buf[*pos])
1.44 schwarze 709: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 710: return(0);
1.14 schwarze 711:
1.22 schwarze 712: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.14 schwarze 713: return(0);
1.22 schwarze 714: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 715: }
716:
1.22 schwarze 717: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 718: return(0);
719:
1.47 schwarze 720: if (NULL == later && maxargs > 0)
1.22 schwarze 721: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 722: return(0);
723:
1.20 schwarze 724: for (flushed = j = 0; ; j++) {
1.1 kristaps 725: lastarg = *pos;
726:
727: if (j == maxargs && ! flushed) {
1.22 schwarze 728: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 729: return(0);
730: flushed = 1;
731: }
732:
1.36 schwarze 733: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 734:
1.36 schwarze 735: if (ARGS_ERROR == ac)
1.1 kristaps 736: return(0);
1.36 schwarze 737: if (ARGS_PUNCT == ac)
1.1 kristaps 738: break;
1.36 schwarze 739: if (ARGS_EOLN == ac)
1.1 kristaps 740: break;
741:
1.36 schwarze 742: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
743:
744: if (MDOC_MAX == ntok) {
745: if ( ! mdoc_word_alloc(m, line, lastarg, p))
1.1 kristaps 746: return(0);
1.36 schwarze 747: continue;
748: }
1.1 kristaps 749:
1.36 schwarze 750: if ( ! flushed) {
751: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
752: return(0);
753: flushed = 1;
754: }
755: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 756: return(0);
1.36 schwarze 757: break;
1.1 kristaps 758: }
759:
1.22 schwarze 760: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 761: return(0);
762:
1.37 schwarze 763: if ( ! nl)
1.1 kristaps 764: return(1);
1.22 schwarze 765: return(append_delims(m, line, pos, buf));
1.1 kristaps 766: }
767:
768:
769: static int
770: in_line(MACRO_PROT_ARGS)
771: {
1.45 schwarze 772: int la, scope, cnt, nc, nl;
1.36 schwarze 773: enum margverr av;
774: enum mdoct ntok;
775: enum margserr ac;
1.40 schwarze 776: enum mdelim d;
1.36 schwarze 777: struct mdoc_arg *arg;
778: char *p;
1.1 kristaps 779:
1.37 schwarze 780: nl = MDOC_NEWLINE & m->flags;
781:
1.1 kristaps 782: /*
783: * Whether we allow ignored elements (those without content,
784: * usually because of reserved words) to squeak by.
785: */
1.32 schwarze 786:
1.1 kristaps 787: switch (tok) {
1.19 schwarze 788: case (MDOC_An):
789: /* FALLTHROUGH */
790: case (MDOC_Ar):
1.1 kristaps 791: /* FALLTHROUGH */
792: case (MDOC_Fl):
793: /* FALLTHROUGH */
1.3 schwarze 794: case (MDOC_Lk):
1.18 schwarze 795: /* FALLTHROUGH */
1.19 schwarze 796: case (MDOC_Nm):
797: /* FALLTHROUGH */
1.18 schwarze 798: case (MDOC_Pa):
1.1 kristaps 799: nc = 1;
800: break;
801: default:
802: nc = 0;
803: break;
804: }
805:
1.20 schwarze 806: for (arg = NULL;; ) {
1.1 kristaps 807: la = *pos;
1.36 schwarze 808: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 809:
1.36 schwarze 810: if (ARGV_WORD == av) {
1.1 kristaps 811: *pos = la;
812: break;
813: }
1.36 schwarze 814: if (ARGV_EOLN == av)
1.1 kristaps 815: break;
1.36 schwarze 816: if (ARGV_ARG == av)
1.1 kristaps 817: continue;
818:
819: mdoc_argv_free(arg);
820: return(0);
821: }
822:
1.45 schwarze 823: for (cnt = scope = 0;; ) {
1.1 kristaps 824: la = *pos;
1.36 schwarze 825: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 826:
1.36 schwarze 827: if (ARGS_ERROR == ac)
1.1 kristaps 828: return(0);
1.36 schwarze 829: if (ARGS_EOLN == ac)
1.1 kristaps 830: break;
1.36 schwarze 831: if (ARGS_PUNCT == ac)
1.1 kristaps 832: break;
833:
1.36 schwarze 834: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 835:
836: /*
837: * In this case, we've located a submacro and must
838: * execute it. Close out scope, if open. If no
839: * elements have been generated, either create one (nc)
840: * or raise a warning.
841: */
842:
1.36 schwarze 843: if (MDOC_MAX != ntok) {
1.45 schwarze 844: if (scope && ! rew_elem(m, tok))
1.1 kristaps 845: return(0);
846: if (nc && 0 == cnt) {
1.22 schwarze 847: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 848: return(0);
1.22 schwarze 849: if ( ! rew_last(m, m->last))
1.3 schwarze 850: return(0);
1.1 kristaps 851: } else if ( ! nc && 0 == cnt) {
852: mdoc_argv_free(arg);
1.44 schwarze 853: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.1 kristaps 854: return(0);
855: }
1.36 schwarze 856: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 857: return(0);
1.37 schwarze 858: if ( ! nl)
1.1 kristaps 859: return(1);
1.22 schwarze 860: return(append_delims(m, line, pos, buf));
1.21 schwarze 861: }
1.1 kristaps 862:
863: /*
864: * Non-quote-enclosed punctuation. Set up our scope, if
865: * a word; rewind the scope, if a delimiter; then append
866: * the word.
867: */
868:
1.40 schwarze 869: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 870:
1.45 schwarze 871: if (DELIM_NONE != d) {
872: /*
873: * If we encounter closing punctuation, no word
874: * has been omitted, no scope is open, and we're
875: * allowed to have an empty element, then start
876: * a new scope. `Ar', `Fl', and `Li', only do
877: * this once per invocation. There may be more
878: * of these (all of them?).
879: */
880: if (0 == cnt && (nc || MDOC_Li == tok) &&
881: DELIM_CLOSE == d && ! scope) {
882: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
883: return(0);
884: if (MDOC_Ar == tok || MDOC_Li == tok ||
885: MDOC_Fl == tok)
886: cnt++;
887: scope = 1;
888: }
889: /*
890: * Close out our scope, if one is open, before
891: * any punctuation.
892: */
893: if (scope && ! rew_elem(m, tok))
1.1 kristaps 894: return(0);
1.45 schwarze 895: scope = 0;
896: } else if ( ! scope) {
1.22 schwarze 897: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 898: return(0);
1.45 schwarze 899: scope = 1;
1.1 kristaps 900: }
901:
1.40 schwarze 902: if (DELIM_NONE == d)
1.1 kristaps 903: cnt++;
1.22 schwarze 904: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 905: return(0);
1.27 schwarze 906:
907: /*
908: * `Fl' macros have their scope re-opened with each new
909: * word so that the `-' can be added to each one without
910: * having to parse out spaces.
911: */
1.45 schwarze 912: if (scope && MDOC_Fl == tok) {
1.27 schwarze 913: if ( ! rew_elem(m, tok))
914: return(0);
1.45 schwarze 915: scope = 0;
1.27 schwarze 916: }
1.1 kristaps 917: }
918:
1.45 schwarze 919: if (scope && ! rew_elem(m, tok))
1.1 kristaps 920: return(0);
921:
922: /*
923: * If no elements have been collected and we're allowed to have
924: * empties (nc), open a scope and close it out. Otherwise,
925: * raise a warning.
926: */
1.32 schwarze 927:
1.1 kristaps 928: if (nc && 0 == cnt) {
1.22 schwarze 929: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 930: return(0);
1.22 schwarze 931: if ( ! rew_last(m, m->last))
1.3 schwarze 932: return(0);
933: } else if ( ! nc && 0 == cnt) {
1.1 kristaps 934: mdoc_argv_free(arg);
1.44 schwarze 935: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.1 kristaps 936: return(0);
937: }
938:
1.37 schwarze 939: if ( ! nl)
1.1 kristaps 940: return(1);
1.22 schwarze 941: return(append_delims(m, line, pos, buf));
1.1 kristaps 942: }
943:
944:
945: static int
946: blk_full(MACRO_PROT_ARGS)
947: {
1.43 schwarze 948: int la, nl;
1.1 kristaps 949: struct mdoc_arg *arg;
1.32 schwarze 950: struct mdoc_node *head; /* save of head macro */
1.34 schwarze 951: struct mdoc_node *body; /* save of body macro */
1.32 schwarze 952: struct mdoc_node *n;
1.46 schwarze 953: enum mdoc_type mtt;
1.36 schwarze 954: enum mdoct ntok;
1.37 schwarze 955: enum margserr ac, lac;
1.36 schwarze 956: enum margverr av;
1.1 kristaps 957: char *p;
958:
1.43 schwarze 959: nl = MDOC_NEWLINE & m->flags;
960:
1.32 schwarze 961: /* Close out prior implicit scope. */
1.12 schwarze 962:
1.1 kristaps 963: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.22 schwarze 964: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 965: return(0);
1.22 schwarze 966: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 967: return(0);
968: }
969:
1.32 schwarze 970: /*
971: * This routine accomodates implicitly- and explicitly-scoped
972: * macro openings. Implicit ones first close out prior scope
973: * (seen above). Delay opening the head until necessary to
974: * allow leading punctuation to print. Special consideration
975: * for `It -column', which has phrase-part syntax instead of
976: * regular child nodes.
977: */
978:
1.1 kristaps 979: for (arg = NULL;; ) {
1.32 schwarze 980: la = *pos;
1.36 schwarze 981: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 982:
1.36 schwarze 983: if (ARGV_WORD == av) {
1.32 schwarze 984: *pos = la;
1.1 kristaps 985: break;
986: }
987:
1.36 schwarze 988: if (ARGV_EOLN == av)
1.1 kristaps 989: break;
1.36 schwarze 990: if (ARGV_ARG == av)
1.1 kristaps 991: continue;
992:
993: mdoc_argv_free(arg);
994: return(0);
995: }
996:
1.22 schwarze 997: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 998: return(0);
999:
1.34 schwarze 1000: head = body = NULL;
1.1 kristaps 1001:
1.32 schwarze 1002: /*
1003: * The `Nd' macro has all arguments in its body: it's a hybrid
1004: * of block partial-explicit and full-implicit. Stupid.
1005: */
1.12 schwarze 1006:
1.32 schwarze 1007: if (MDOC_Nd == tok) {
1008: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1009: return(0);
1010: head = m->last;
1.22 schwarze 1011: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.12 schwarze 1012: return(0);
1.22 schwarze 1013: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.12 schwarze 1014: return(0);
1.34 schwarze 1015: body = m->last;
1.12 schwarze 1016: }
1017:
1.37 schwarze 1018: ac = ARGS_ERROR;
1019:
1.41 schwarze 1020: for ( ; ; ) {
1.32 schwarze 1021: la = *pos;
1.46 schwarze 1022: /* Initialise last-phrase-type with ARGS_PEND. */
1023: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.36 schwarze 1024: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.52 schwarze 1025:
1026: if (ARGS_PUNCT == ac)
1027: break;
1.1 kristaps 1028:
1.36 schwarze 1029: if (ARGS_ERROR == ac)
1.1 kristaps 1030: return(0);
1.46 schwarze 1031:
1032: if (ARGS_EOLN == ac) {
1033: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1034: break;
1035: /*
1036: * This is necessary: if the last token on a
1037: * line is a `Ta' or tab, then we'll get
1038: * ARGS_EOLN, so we must be smart enough to
1039: * reopen our scope if the last parse was a
1040: * phrase or partial phrase.
1041: */
1042: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1043: return(0);
1044: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1045: return(0);
1046: body = m->last;
1.1 kristaps 1047: break;
1.41 schwarze 1048: }
1049:
1.46 schwarze 1050: /*
1051: * Emit leading punctuation (i.e., punctuation before
1052: * the MDOC_HEAD) for non-phrase types.
1053: */
1.32 schwarze 1054:
1.37 schwarze 1055: if (NULL == head &&
1.46 schwarze 1056: ARGS_PEND != ac &&
1.37 schwarze 1057: ARGS_PHRASE != ac &&
1.36 schwarze 1058: ARGS_PPHRASE != ac &&
1059: ARGS_QWORD != ac &&
1.40 schwarze 1060: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1061: if ( ! mdoc_word_alloc(m, line, la, p))
1062: return(0);
1063: continue;
1064: }
1065:
1.46 schwarze 1066: /* Open a head if one hasn't been opened. */
1.32 schwarze 1067:
1.46 schwarze 1068: if (NULL == head) {
1.32 schwarze 1069: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1070: return(0);
1.29 schwarze 1071: head = m->last;
1.32 schwarze 1072: }
1073:
1.46 schwarze 1074: if (ARGS_PHRASE == ac ||
1075: ARGS_PEND == ac ||
1076: ARGS_PPHRASE == ac) {
1077: /*
1078: * If we haven't opened a body yet, rewind the
1079: * head; if we have, rewind that instead.
1080: */
1081:
1082: mtt = body ? MDOC_BODY : MDOC_HEAD;
1083: if ( ! rew_sub(mtt, m, tok, line, ppos))
1084: return(0);
1085:
1086: /* Then allocate our body context. */
1087:
1088: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1089: return(0);
1090: body = m->last;
1091:
1092: /*
1093: * Process phrases: set whether we're in a
1094: * partial-phrase (this effects line handling)
1095: * then call down into the phrase parser.
1096: */
1097:
1.41 schwarze 1098: if (ARGS_PPHRASE == ac)
1099: m->flags |= MDOC_PPHRASE;
1.46 schwarze 1100: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1101: m->flags |= MDOC_PPHRASE;
1102:
1103: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1104: return(0);
1.46 schwarze 1105:
1.41 schwarze 1106: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1107: continue;
1108: }
1109:
1.36 schwarze 1110: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1111:
1112: if (MDOC_MAX == ntok) {
1113: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1114: return(0);
1.36 schwarze 1115: continue;
1.32 schwarze 1116: }
1.36 schwarze 1117:
1118: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1119: return(0);
1.36 schwarze 1120: break;
1.32 schwarze 1121: }
1.1 kristaps 1122:
1.32 schwarze 1123: if (NULL == head) {
1124: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1125: return(0);
1.32 schwarze 1126: head = m->last;
1.1 kristaps 1127: }
1128:
1.43 schwarze 1129: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1130: return(0);
1.12 schwarze 1131:
1.34 schwarze 1132: /* If we've already opened our body, exit now. */
1.32 schwarze 1133:
1.34 schwarze 1134: if (NULL != body)
1.46 schwarze 1135: goto out;
1.29 schwarze 1136:
1137: /*
1.34 schwarze 1138: * If there is an open (i.e., unvalidated) sub-block requiring
1139: * explicit close-out, postpone switching the current block from
1140: * head to body until the rew_sub() call closing out that
1141: * sub-block.
1.29 schwarze 1142: */
1143: for (n = m->last; n && n != head; n = n->parent) {
1.34 schwarze 1144: if (MDOC_BLOCK == n->type &&
1145: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1146: ! (MDOC_VALID & n->flags)) {
1147: assert( ! (MDOC_ACTED & n->flags));
1.29 schwarze 1148: n->pending = head;
1149: return(1);
1150: }
1151: }
1.54 schwarze 1152:
1.32 schwarze 1153: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1154:
1.22 schwarze 1155: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1156: return(0);
1.22 schwarze 1157: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1158: return(0);
1159:
1.46 schwarze 1160: out:
1161: if ( ! (MDOC_FREECOL & m->flags))
1162: return(1);
1163:
1164: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1165: return(0);
1166: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1167: return(0);
1168:
1169: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1170: return(1);
1171: }
1172:
1173:
1174: static int
1175: blk_part_imp(MACRO_PROT_ARGS)
1176: {
1.43 schwarze 1177: int la, nl;
1.36 schwarze 1178: enum mdoct ntok;
1179: enum margserr ac;
1.1 kristaps 1180: char *p;
1.32 schwarze 1181: struct mdoc_node *blk; /* saved block context */
1182: struct mdoc_node *body; /* saved body context */
1183: struct mdoc_node *n;
1.1 kristaps 1184:
1.43 schwarze 1185: nl = MDOC_NEWLINE & m->flags;
1186:
1.32 schwarze 1187: /*
1188: * A macro that spans to the end of the line. This is generally
1189: * (but not necessarily) called as the first macro. The block
1190: * has a head as the immediate child, which is always empty,
1191: * followed by zero or more opening punctuation nodes, then the
1192: * body (which may be empty, depending on the macro), then zero
1193: * or more closing punctuation nodes.
1194: */
1.22 schwarze 1195:
1196: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1197: return(0);
1.32 schwarze 1198:
1.22 schwarze 1199: blk = m->last;
1.32 schwarze 1200:
1.22 schwarze 1201: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1202: return(0);
1.22 schwarze 1203: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1204: return(0);
1205:
1.32 schwarze 1206: /*
1207: * Open the body scope "on-demand", that is, after we've
1208: * processed all our the leading delimiters (open parenthesis,
1209: * etc.).
1210: */
1.1 kristaps 1211:
1.32 schwarze 1212: for (body = NULL; ; ) {
1.22 schwarze 1213: la = *pos;
1.36 schwarze 1214: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.32 schwarze 1215:
1.36 schwarze 1216: if (ARGS_ERROR == ac)
1.1 kristaps 1217: return(0);
1.36 schwarze 1218: if (ARGS_EOLN == ac)
1.32 schwarze 1219: break;
1.36 schwarze 1220: if (ARGS_PUNCT == ac)
1.1 kristaps 1221: break;
1222:
1.36 schwarze 1223: if (NULL == body && ARGS_QWORD != ac &&
1.40 schwarze 1224: DELIM_OPEN == mdoc_isdelim(p)) {
1.22 schwarze 1225: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1226: return(0);
1227: continue;
1228: }
1229:
1.32 schwarze 1230: if (NULL == body) {
1231: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1232: return(0);
1233: body = m->last;
1234: }
1235:
1.36 schwarze 1236: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1237:
1238: if (MDOC_MAX == ntok) {
1239: if ( ! mdoc_word_alloc(m, line, la, p))
1.32 schwarze 1240: return(0);
1.36 schwarze 1241: continue;
1242: }
1.32 schwarze 1243:
1.36 schwarze 1244: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1245: return(0);
1.36 schwarze 1246: break;
1.32 schwarze 1247: }
1248:
1249: /* Clean-ups to leave in a consistent state. */
1250:
1251: if (NULL == body) {
1252: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1253: return(0);
1.32 schwarze 1254: body = m->last;
1.39 schwarze 1255: }
1256:
1257: for (n = body->child; n && n->next; n = n->next)
1258: /* Do nothing. */ ;
1259:
1260: /*
1261: * End of sentence spacing: if the last node is a text node and
1262: * has a trailing period, then mark it as being end-of-sentence.
1263: */
1264:
1265: if (n && MDOC_TEXT == n->type && n->string)
1.55 schwarze 1266: if (mandoc_eos(n->string, strlen(n->string), 1))
1.39 schwarze 1267: n->flags |= MDOC_EOS;
1268:
1269: /* Up-propogate the end-of-space flag. */
1270:
1271: if (n && (MDOC_EOS & n->flags)) {
1272: body->flags |= MDOC_EOS;
1273: body->parent->flags |= MDOC_EOS;
1.1 kristaps 1274: }
1275:
1.47 schwarze 1276: /*
1277: * If there is an open sub-block requiring explicit close-out,
1278: * postpone closing out the current block
1279: * until the rew_sub() call closing out the sub-block.
1280: */
1281: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1282: if (MDOC_BLOCK == n->type &&
1283: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1284: ! (MDOC_VALID & n->flags)) {
1285: assert( ! (MDOC_ACTED & n->flags));
1.59 ! schwarze 1286: make_pending(n, tok, m, line, ppos);
1.47 schwarze 1287: if ( ! mdoc_endbody_alloc(m, line, ppos,
1288: tok, body, ENDBODY_NOSPACE))
1289: return(0);
1290: return(1);
1291: }
1292: }
1293:
1.22 schwarze 1294: /*
1295: * If we can't rewind to our body, then our scope has already
1296: * been closed by another macro (like `Oc' closing `Op'). This
1297: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.34 schwarze 1298: * crufty use of `Op' breakage.
1.1 kristaps 1299: */
1.51 schwarze 1300: if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPENEST,
1301: line, ppos, "%s broken", mdoc_macronames[tok]))
1.22 schwarze 1302: return(0);
1.32 schwarze 1303:
1.47 schwarze 1304: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 schwarze 1305: return(0);
1.1 kristaps 1306:
1.22 schwarze 1307: /* Standard appending of delimiters. */
1.1 kristaps 1308:
1.43 schwarze 1309: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1310: return(0);
1311:
1.22 schwarze 1312: /* Rewind scope, if applicable. */
1.1 kristaps 1313:
1.47 schwarze 1314: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1315: return(0);
1316:
1317: return(1);
1318: }
1319:
1320:
1321: static int
1322: blk_part_exp(MACRO_PROT_ARGS)
1323: {
1.37 schwarze 1324: int la, nl;
1.36 schwarze 1325: enum margserr ac;
1.32 schwarze 1326: struct mdoc_node *head; /* keep track of head */
1327: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1328: char *p;
1.36 schwarze 1329: enum mdoct ntok;
1.1 kristaps 1330:
1.37 schwarze 1331: nl = MDOC_NEWLINE & m->flags;
1332:
1.32 schwarze 1333: /*
1334: * The opening of an explicit macro having zero or more leading
1335: * punctuation nodes; a head with optional single element (the
1336: * case of `Eo'); and a body that may be empty.
1337: */
1.22 schwarze 1338:
1339: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1340: return(0);
1.22 schwarze 1341:
1.32 schwarze 1342: for (head = body = NULL; ; ) {
1.22 schwarze 1343: la = *pos;
1.36 schwarze 1344: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1345:
1.36 schwarze 1346: if (ARGS_ERROR == ac)
1.1 kristaps 1347: return(0);
1.36 schwarze 1348: if (ARGS_PUNCT == ac)
1.1 kristaps 1349: break;
1.36 schwarze 1350: if (ARGS_EOLN == ac)
1.1 kristaps 1351: break;
1352:
1.32 schwarze 1353: /* Flush out leading punctuation. */
1354:
1.36 schwarze 1355: if (NULL == head && ARGS_QWORD != ac &&
1.40 schwarze 1356: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1357: assert(NULL == body);
1358: if ( ! mdoc_word_alloc(m, line, la, p))
1359: return(0);
1360: continue;
1361: }
1362:
1363: if (NULL == head) {
1364: assert(NULL == body);
1365: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1366: return(0);
1.32 schwarze 1367: head = m->last;
1.1 kristaps 1368: }
1369:
1.32 schwarze 1370: /*
1371: * `Eo' gobbles any data into the head, but most other
1372: * macros just immediately close out and begin the body.
1373: */
1374:
1375: if (NULL == body) {
1376: assert(head);
1377: /* No check whether it's a macro! */
1378: if (MDOC_Eo == tok)
1379: if ( ! mdoc_word_alloc(m, line, la, p))
1380: return(0);
1381:
1.22 schwarze 1382: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1383: return(0);
1.22 schwarze 1384: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1385: return(0);
1.32 schwarze 1386: body = m->last;
1387:
1388: if (MDOC_Eo == tok)
1389: continue;
1390: }
1391:
1392: assert(NULL != head && NULL != body);
1393:
1.36 schwarze 1394: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1395:
1396: if (MDOC_MAX == ntok) {
1397: if ( ! mdoc_word_alloc(m, line, la, p))
1.32 schwarze 1398: return(0);
1.36 schwarze 1399: continue;
1.1 kristaps 1400: }
1.32 schwarze 1401:
1.36 schwarze 1402: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1403: return(0);
1.36 schwarze 1404: break;
1.1 kristaps 1405: }
1406:
1.32 schwarze 1407: /* Clean-up to leave in a consistent state. */
1408:
1409: if (NULL == head) {
1410: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1411: return(0);
1412: head = m->last;
1413: }
1.22 schwarze 1414:
1.32 schwarze 1415: if (NULL == body) {
1.22 schwarze 1416: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1417: return(0);
1.22 schwarze 1418: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1419: return(0);
1.32 schwarze 1420: body = m->last;
1.1 kristaps 1421: }
1422:
1.22 schwarze 1423: /* Standard appending of delimiters. */
1424:
1.37 schwarze 1425: if ( ! nl)
1.1 kristaps 1426: return(1);
1.22 schwarze 1427: return(append_delims(m, line, pos, buf));
1.1 kristaps 1428: }
1429:
1430:
1.37 schwarze 1431: /* ARGSUSED */
1.1 kristaps 1432: static int
1433: in_line_argn(MACRO_PROT_ARGS)
1434: {
1.37 schwarze 1435: int la, flushed, j, maxargs, nl;
1.36 schwarze 1436: enum margserr ac;
1437: enum margverr av;
1438: struct mdoc_arg *arg;
1439: char *p;
1440: enum mdoct ntok;
1.1 kristaps 1441:
1.37 schwarze 1442: nl = MDOC_NEWLINE & m->flags;
1443:
1.32 schwarze 1444: /*
1445: * A line macro that has a fixed number of arguments (maxargs).
1446: * Only open the scope once the first non-leading-punctuation is
1447: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1448: * keep it open until the maximum number of arguments are
1449: * exhausted.
1450: */
1.1 kristaps 1451:
1452: switch (tok) {
1453: case (MDOC_Ap):
1454: /* FALLTHROUGH */
1455: case (MDOC_No):
1456: /* FALLTHROUGH */
1457: case (MDOC_Ns):
1458: /* FALLTHROUGH */
1459: case (MDOC_Ux):
1460: maxargs = 0;
1461: break;
1.28 schwarze 1462: case (MDOC_Xr):
1463: maxargs = 2;
1464: break;
1.1 kristaps 1465: default:
1466: maxargs = 1;
1467: break;
1468: }
1469:
1.32 schwarze 1470: for (arg = NULL; ; ) {
1.22 schwarze 1471: la = *pos;
1.36 schwarze 1472: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1473:
1.36 schwarze 1474: if (ARGV_WORD == av) {
1.22 schwarze 1475: *pos = la;
1.1 kristaps 1476: break;
1477: }
1478:
1.36 schwarze 1479: if (ARGV_EOLN == av)
1.1 kristaps 1480: break;
1.36 schwarze 1481: if (ARGV_ARG == av)
1.1 kristaps 1482: continue;
1483:
1484: mdoc_argv_free(arg);
1485: return(0);
1486: }
1487:
1.32 schwarze 1488: for (flushed = j = 0; ; ) {
1.22 schwarze 1489: la = *pos;
1.36 schwarze 1490: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1491:
1.36 schwarze 1492: if (ARGS_ERROR == ac)
1.1 kristaps 1493: return(0);
1.36 schwarze 1494: if (ARGS_PUNCT == ac)
1.1 kristaps 1495: break;
1.36 schwarze 1496: if (ARGS_EOLN == ac)
1.1 kristaps 1497: break;
1498:
1.32 schwarze 1499: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1500: ARGS_QWORD != ac &&
1.40 schwarze 1501: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1502: if ( ! mdoc_word_alloc(m, line, la, p))
1503: return(0);
1504: continue;
1.40 schwarze 1505: } else if (0 == j)
1.32 schwarze 1506: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1507: return(0);
1508:
1509: if (j == maxargs && ! flushed) {
1510: if ( ! rew_elem(m, tok))
1511: return(0);
1512: flushed = 1;
1513: }
1514:
1.36 schwarze 1515: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1516:
1517: if (MDOC_MAX != ntok) {
1.22 schwarze 1518: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1519: return(0);
1520: flushed = 1;
1.36 schwarze 1521: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1522: return(0);
1.32 schwarze 1523: j++;
1.1 kristaps 1524: break;
1525: }
1526:
1527: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1528: ARGS_QWORD != ac &&
1.40 schwarze 1529: ! flushed &&
1530: DELIM_NONE != mdoc_isdelim(p)) {
1.22 schwarze 1531: if ( ! rew_elem(m, tok))
1.1 kristaps 1532: return(0);
1533: flushed = 1;
1534: }
1.28 schwarze 1535:
1536: /*
1537: * XXX: this is a hack to work around groff's ugliness
1538: * as regards `Xr' and extraneous arguments. It should
1539: * ideally be deprecated behaviour, but because this is
1540: * code is no here, it's unlikely to be removed.
1541: */
1542: if (MDOC_Xr == tok && j == maxargs) {
1.32 schwarze 1543: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.28 schwarze 1544: return(0);
1545: if ( ! rew_elem(m, MDOC_Ns))
1546: return(0);
1547: }
1548:
1.22 schwarze 1549: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1550: return(0);
1.32 schwarze 1551: j++;
1.1 kristaps 1552: }
1553:
1.32 schwarze 1554: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1555: return(0);
1556:
1557: /* Close out in a consistent state. */
1.22 schwarze 1558:
1559: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1560: return(0);
1.37 schwarze 1561: if ( ! nl)
1.1 kristaps 1562: return(1);
1.22 schwarze 1563: return(append_delims(m, line, pos, buf));
1.1 kristaps 1564: }
1565:
1566:
1567: static int
1568: in_line_eoln(MACRO_PROT_ARGS)
1569: {
1.36 schwarze 1570: int la;
1571: enum margserr ac;
1572: enum margverr av;
1573: struct mdoc_arg *arg;
1574: char *p;
1575: enum mdoct ntok;
1.1 kristaps 1576:
1577: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1578:
1.53 schwarze 1579: if (tok == MDOC_Pp)
1580: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1581:
1.22 schwarze 1582: /* Parse macro arguments. */
1.1 kristaps 1583:
1.22 schwarze 1584: for (arg = NULL; ; ) {
1.1 kristaps 1585: la = *pos;
1.36 schwarze 1586: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1587:
1.36 schwarze 1588: if (ARGV_WORD == av) {
1.1 kristaps 1589: *pos = la;
1590: break;
1591: }
1.36 schwarze 1592: if (ARGV_EOLN == av)
1.1 kristaps 1593: break;
1.36 schwarze 1594: if (ARGV_ARG == av)
1.1 kristaps 1595: continue;
1596:
1597: mdoc_argv_free(arg);
1598: return(0);
1599: }
1600:
1.22 schwarze 1601: /* Open element scope. */
1602:
1603: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1604: return(0);
1605:
1.22 schwarze 1606: /* Parse argument terms. */
1.1 kristaps 1607:
1608: for (;;) {
1609: la = *pos;
1.36 schwarze 1610: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1611:
1.36 schwarze 1612: if (ARGS_ERROR == ac)
1.1 kristaps 1613: return(0);
1.36 schwarze 1614: if (ARGS_EOLN == ac)
1.1 kristaps 1615: break;
1616:
1.36 schwarze 1617: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1618:
1.36 schwarze 1619: if (MDOC_MAX == ntok) {
1620: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1621: return(0);
1.36 schwarze 1622: continue;
1623: }
1.1 kristaps 1624:
1.36 schwarze 1625: if ( ! rew_elem(m, tok))
1.1 kristaps 1626: return(0);
1.36 schwarze 1627: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1628: }
1629:
1.22 schwarze 1630: /* Close out (no delimiters). */
1631:
1632: return(rew_elem(m, tok));
1.28 schwarze 1633: }
1634:
1635:
1636: /* ARGSUSED */
1637: static int
1638: ctx_synopsis(MACRO_PROT_ARGS)
1639: {
1.37 schwarze 1640: int nl;
1641:
1642: nl = MDOC_NEWLINE & m->flags;
1.28 schwarze 1643:
1644: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.53 schwarze 1645: if ( ! (MDOC_SYNOPSIS & m->flags))
1.28 schwarze 1646: return(in_line(m, tok, line, ppos, pos, buf));
1647:
1648: /* If we're a nested call, same place. */
1.37 schwarze 1649: if ( ! nl)
1.28 schwarze 1650: return(in_line(m, tok, line, ppos, pos, buf));
1651:
1652: /*
1653: * XXX: this will open a block scope; however, if later we end
1654: * up formatting the block scope, then child nodes will inherit
1655: * the formatting. Be careful.
1656: */
1.51 schwarze 1657: if (MDOC_Nm == tok)
1658: return(blk_full(m, tok, line, ppos, pos, buf));
1659: assert(MDOC_Vt == tok);
1.28 schwarze 1660: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.1 kristaps 1661: }
1662:
1663:
1664: /* ARGSUSED */
1665: static int
1666: obsolete(MACRO_PROT_ARGS)
1667: {
1668:
1.44 schwarze 1669: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1670: }
1671:
1672:
1.17 schwarze 1673: /*
1674: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1675: * They're unusual because they're basically free-form text until a
1676: * macro is encountered.
1677: */
1.1 kristaps 1678: static int
1.46 schwarze 1679: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1680: {
1.36 schwarze 1681: int la, pos;
1.46 schwarze 1682: enum margserr ac;
1.36 schwarze 1683: enum mdoct ntok;
1684: char *p;
1.1 kristaps 1685:
1.17 schwarze 1686: for (pos = ppos; ; ) {
1687: la = pos;
1.1 kristaps 1688:
1.46 schwarze 1689: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1690:
1.46 schwarze 1691: if (ARGS_ERROR == ac)
1.17 schwarze 1692: return(0);
1.46 schwarze 1693: if (ARGS_EOLN == ac)
1.17 schwarze 1694: break;
1.1 kristaps 1695:
1.46 schwarze 1696: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1697:
1.36 schwarze 1698: if (MDOC_MAX == ntok) {
1699: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1700: return(0);
1.36 schwarze 1701: continue;
1702: }
1.1 kristaps 1703:
1.36 schwarze 1704: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1705: return(0);
1.36 schwarze 1706: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1707: }
1708:
1709: return(1);
1710: }
1.17 schwarze 1711:
1712:
1.46 schwarze 1713: /* ARGSUSED */
1714: static int
1715: phrase_ta(MACRO_PROT_ARGS)
1716: {
1717: int la;
1718: enum mdoct ntok;
1719: enum margserr ac;
1720: char *p;
1721:
1722: /*
1723: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1724: * it should simply error out with ARGSLOST.
1725: */
1726:
1727: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1728: return(0);
1729: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1730: return(0);
1731:
1732: for (;;) {
1733: la = *pos;
1734: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1735:
1736: if (ARGS_ERROR == ac)
1737: return(0);
1738: if (ARGS_EOLN == ac)
1739: break;
1740:
1741: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1742:
1743: if (MDOC_MAX == ntok) {
1744: if ( ! mdoc_word_alloc(m, line, la, p))
1745: return(0);
1746: continue;
1747: }
1748:
1749: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1750: return(0);
1751: return(append_delims(m, line, pos, buf));
1752: }
1753:
1754: return(1);
1755: }
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