Annotation of mandoc/mdoc_macro.c, Revision 1.98
1.98 ! kristaps 1: /* $Id: mdoc_macro.c,v 1.97 2010/11/30 13:04:14 kristaps Exp $ */
1.1 kristaps 2: /*
1.92 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
1.8 kristaps 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: *
1.8 kristaps 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: */
1.40 kristaps 18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.1 kristaps 22: #include <assert.h>
23: #include <ctype.h>
24: #include <stdlib.h>
25: #include <stdio.h>
26: #include <string.h>
1.38 kristaps 27: #include <time.h>
1.1 kristaps 28:
1.68 kristaps 29: #include "mandoc.h"
1.1 kristaps 30: #include "libmdoc.h"
1.64 kristaps 31: #include "libmandoc.h"
1.1 kristaps 32:
1.84 schwarze 33: enum rew { /* see rew_dohalt() */
34: REWIND_NONE,
35: REWIND_THIS,
36: REWIND_MORE,
1.98 ! kristaps 37: REWIND_FORCE,
1.84 schwarze 38: REWIND_LATER,
1.91 kristaps 39: REWIND_ERROR
1.51 kristaps 40: };
1.1 kristaps 41:
1.53 kristaps 42: static int blk_full(MACRO_PROT_ARGS);
43: static int blk_exp_close(MACRO_PROT_ARGS);
44: static int blk_part_exp(MACRO_PROT_ARGS);
45: static int blk_part_imp(MACRO_PROT_ARGS);
46: static int ctx_synopsis(MACRO_PROT_ARGS);
47: static int in_line_eoln(MACRO_PROT_ARGS);
48: static int in_line_argn(MACRO_PROT_ARGS);
49: static int in_line(MACRO_PROT_ARGS);
50: static int obsolete(MACRO_PROT_ARGS);
1.75 kristaps 51: static int phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 52:
53: static int append_delims(struct mdoc *,
54: int, int *, char *);
1.58 kristaps 55: static enum mdoct lookup(enum mdoct, const char *);
1.53 kristaps 56: static enum mdoct lookup_raw(const char *);
1.85 schwarze 57: static int make_pending(struct mdoc_node *, enum mdoct,
1.83 schwarze 58: struct mdoc *, int, int);
1.82 kristaps 59: static int phrase(struct mdoc *, int, int, char *);
1.53 kristaps 60: static enum mdoct rew_alt(enum mdoct);
61: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
62: const struct mdoc_node *);
63: static int rew_elem(struct mdoc *, enum mdoct);
64: static int rew_last(struct mdoc *,
65: const struct mdoc_node *);
66: static int rew_sub(enum mdoc_type, struct mdoc *,
67: enum mdoct, int, int);
1.1 kristaps 68:
69: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.13 kristaps 70: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
1.1 kristaps 71: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
72: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
73: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
74: { blk_full, 0 }, /* Sh */
75: { blk_full, 0 }, /* Ss */
1.21 kristaps 76: { in_line_eoln, 0 }, /* Pp */
1.1 kristaps 77: { blk_part_imp, MDOC_PARSED }, /* D1 */
78: { blk_part_imp, MDOC_PARSED }, /* Dl */
79: { blk_full, MDOC_EXPLICIT }, /* Bd */
80: { blk_exp_close, MDOC_EXPLICIT }, /* Ed */
81: { blk_full, MDOC_EXPLICIT }, /* Bl */
82: { blk_exp_close, MDOC_EXPLICIT }, /* El */
83: { blk_full, MDOC_PARSED }, /* It */
84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.10 kristaps 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.23 kristaps 87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
1.1 kristaps 88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
92: { in_line_eoln, 0 }, /* Ex */
93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
94: { in_line_eoln, 0 }, /* Fd */
95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
1.11 kristaps 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.18 kristaps 99: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 100: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.19 kristaps 101: { blk_full, 0 }, /* Nd */
1.88 schwarze 102: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 103: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
104: { obsolete, 0 }, /* Ot */
105: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
106: { in_line_eoln, 0 }, /* Rv */
107: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
108: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.41 kristaps 109: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 110: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.1 kristaps 111: { in_line_eoln, 0 }, /* %A */
112: { in_line_eoln, 0 }, /* %B */
113: { in_line_eoln, 0 }, /* %D */
114: { in_line_eoln, 0 }, /* %I */
115: { in_line_eoln, 0 }, /* %J */
116: { in_line_eoln, 0 }, /* %N */
117: { in_line_eoln, 0 }, /* %O */
118: { in_line_eoln, 0 }, /* %P */
119: { in_line_eoln, 0 }, /* %R */
120: { in_line_eoln, 0 }, /* %T */
121: { in_line_eoln, 0 }, /* %V */
122: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
123: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
124: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
125: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
126: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
127: { blk_full, MDOC_EXPLICIT }, /* Bf */
128: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
129: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
130: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
131: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
132: { in_line_eoln, 0 }, /* Db */
133: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
134: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
135: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
136: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
137: { blk_exp_close, MDOC_EXPLICIT }, /* Ef */
138: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
139: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 141: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.95 schwarze 142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* No */
143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Ns */
1.1 kristaps 144: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
145: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
146: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.52 kristaps 147: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.1 kristaps 148: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
149: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
150: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
151: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
152: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
153: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
154: { blk_exp_close, MDOC_EXPLICIT }, /* Re */
155: { blk_full, MDOC_EXPLICIT }, /* Rs */
156: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
157: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
158: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
159: { in_line_eoln, 0 }, /* Sm */
160: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
161: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
162: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
163: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
164: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
165: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
166: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
167: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
168: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
169: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
170: { blk_full, MDOC_EXPLICIT }, /* Bk */
171: { blk_exp_close, MDOC_EXPLICIT }, /* Ek */
172: { in_line_eoln, 0 }, /* Bt */
173: { in_line_eoln, 0 }, /* Hf */
174: { obsolete, 0 }, /* Fr */
175: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 176: { in_line, 0 }, /* Lb */
1.21 kristaps 177: { in_line_eoln, 0 }, /* Lp */
1.12 kristaps 178: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
179: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
1.1 kristaps 180: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
181: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
182: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
183: { in_line_eoln, 0 }, /* %C */
184: { obsolete, 0 }, /* Es */
185: { obsolete, 0 }, /* En */
186: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
187: { in_line_eoln, 0 }, /* %Q */
1.20 kristaps 188: { in_line_eoln, 0 }, /* br */
189: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 190: { in_line_eoln, 0 }, /* %U */
1.75 kristaps 191: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
1.1 kristaps 192: };
193:
194: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
195:
196:
197: /*
198: * This is called at the end of parsing. It must traverse up the tree,
199: * closing out open [implicit] scopes. Obviously, open explicit scopes
200: * are errors.
201: */
202: int
1.32 kristaps 203: mdoc_macroend(struct mdoc *m)
1.1 kristaps 204: {
205: struct mdoc_node *n;
206:
207: /* Scan for open explicit scopes. */
208:
1.32 kristaps 209: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 210:
1.94 schwarze 211: for ( ; n; n = n->parent)
212: if (MDOC_BLOCK == n->type &&
213: MDOC_EXPLICIT & mdoc_macros[n->tok].flags)
214: mdoc_nmsg(m, n, MANDOCERR_SCOPEEXIT);
1.1 kristaps 215:
1.32 kristaps 216: /* Rewind to the first. */
217:
218: return(rew_last(m, m->first));
1.1 kristaps 219: }
220:
1.32 kristaps 221:
222: /*
223: * Look up a macro from within a subsequent context.
224: */
1.53 kristaps 225: static enum mdoct
1.58 kristaps 226: lookup(enum mdoct from, const char *p)
1.28 kristaps 227: {
1.36 kristaps 228: /* FIXME: make -diag lists be un-PARSED. */
1.28 kristaps 229:
230: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
231: return(MDOC_MAX);
1.35 kristaps 232: return(lookup_raw(p));
1.28 kristaps 233: }
234:
235:
1.32 kristaps 236: /*
237: * Lookup a macro following the initial line macro.
238: */
1.53 kristaps 239: static enum mdoct
1.35 kristaps 240: lookup_raw(const char *p)
1.1 kristaps 241: {
1.58 kristaps 242: enum mdoct res;
1.1 kristaps 243:
1.34 kristaps 244: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.28 kristaps 245: return(MDOC_MAX);
246: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 247: return(res);
248: return(MDOC_MAX);
249: }
250:
251:
252: static int
1.32 kristaps 253: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 254: {
255:
256: assert(to);
257: mdoc->next = MDOC_NEXT_SIBLING;
258:
259: /* LINTED */
260: while (mdoc->last != to) {
261: if ( ! mdoc_valid_post(mdoc))
262: return(0);
263: mdoc->last = mdoc->last->parent;
264: assert(mdoc->last);
265: }
266:
1.97 kristaps 267: return(mdoc_valid_post(mdoc));
1.1 kristaps 268: }
269:
270:
1.32 kristaps 271: /*
1.84 schwarze 272: * For a block closing macro, return the corresponding opening one.
273: * Otherwise, return the macro itself.
1.32 kristaps 274: */
1.47 kristaps 275: static enum mdoct
276: rew_alt(enum mdoct tok)
1.1 kristaps 277: {
278: switch (tok) {
279: case (MDOC_Ac):
280: return(MDOC_Ao);
281: case (MDOC_Bc):
282: return(MDOC_Bo);
283: case (MDOC_Brc):
284: return(MDOC_Bro);
285: case (MDOC_Dc):
286: return(MDOC_Do);
287: case (MDOC_Ec):
288: return(MDOC_Eo);
289: case (MDOC_Ed):
290: return(MDOC_Bd);
291: case (MDOC_Ef):
292: return(MDOC_Bf);
293: case (MDOC_Ek):
294: return(MDOC_Bk);
295: case (MDOC_El):
296: return(MDOC_Bl);
297: case (MDOC_Fc):
298: return(MDOC_Fo);
299: case (MDOC_Oc):
300: return(MDOC_Oo);
301: case (MDOC_Pc):
302: return(MDOC_Po);
303: case (MDOC_Qc):
304: return(MDOC_Qo);
305: case (MDOC_Re):
306: return(MDOC_Rs);
307: case (MDOC_Sc):
308: return(MDOC_So);
309: case (MDOC_Xc):
310: return(MDOC_Xo);
311: default:
1.84 schwarze 312: return(tok);
1.1 kristaps 313: }
314: /* NOTREACHED */
315: }
316:
317:
1.84 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.
1.98 ! kristaps 324: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.84 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: */
1.51 kristaps 328: static enum rew
1.47 kristaps 329: rew_dohalt(enum mdoct tok, enum mdoc_type type,
330: const struct mdoc_node *p)
1.1 kristaps 331: {
332:
1.86 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)
1.84 schwarze 340: return(MDOC_BLOCK == type &&
341: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
342: REWIND_ERROR : REWIND_NONE);
1.86 schwarze 343:
344: /*
345: * When starting to rewind, skip plain text
346: * and nodes that have already been rewound.
347: */
1.84 schwarze 348: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
349: return(REWIND_MORE);
350:
1.86 schwarze 351: /*
352: * The easiest case: Found a matching token.
353: * This applies to both blocks and elements.
354: */
1.84 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:
1.86 schwarze 360: /*
361: * While elements do require rewinding for themselves,
362: * they never affect rewinding of other nodes.
363: */
1.84 schwarze 364: if (MDOC_ELEM == p->type)
365: return(REWIND_MORE);
1.1 kristaps 366:
1.86 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) {
1.84 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)
1.84 schwarze 378: return(REWIND_NONE);
1.1 kristaps 379: break;
1.84 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;
1.88 schwarze 390: case (MDOC_Nm):
391: return(REWIND_NONE);
1.19 kristaps 392: case (MDOC_Nd):
393: /* FALLTHROUGH */
1.1 kristaps 394: case (MDOC_Ss):
395: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.84 schwarze 396: return(REWIND_NONE);
1.1 kristaps 397: /* FALLTHROUGH */
398: case (MDOC_Sh):
1.84 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:
1.86 schwarze 407: /*
408: * Default block rewinding rules.
1.88 schwarze 409: * In particular, always skip block end markers,
410: * and let all blocks rewind Nm children.
1.86 schwarze 411: */
1.88 schwarze 412: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
413: (MDOC_BLOCK == p->type &&
1.86 schwarze 414: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
415: return(REWIND_MORE);
416:
417: /*
1.98 ! kristaps 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.
1.86 schwarze 422: */
1.98 ! kristaps 423: return (&blk_full == mdoc_macros[tok].fp ?
! 424: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 425: }
426:
427:
428: static int
1.47 kristaps 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:
1.83 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:
1.84 schwarze 474: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.83 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;
1.88 schwarze 506: mdoc_vmsg(m, MANDOCERR_SCOPENEST, line, ppos,
507: "%s breaks %s", mdoc_macronames[tok],
508: mdoc_macronames[broken->tok]);
1.83 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:
1.84 schwarze 519:
1.1 kristaps 520: static int
1.32 kristaps 521: rew_sub(enum mdoc_type t, struct mdoc *m,
1.47 kristaps 522: enum mdoct tok, int line, int ppos)
1.1 kristaps 523: {
524: struct mdoc_node *n;
525:
1.84 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;
1.98 ! kristaps 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 */
1.84 schwarze 538: case (REWIND_MORE):
539: n = n->parent;
540: continue;
541: case (REWIND_LATER):
1.98 ! kristaps 542: if (make_pending(n, tok, m, line, ppos) ||
! 543: MDOC_BLOCK != t)
! 544: return(1);
! 545: /* FALLTHROUGH */
1.84 schwarze 546: case (REWIND_ERROR):
1.98 ! kristaps 547: mdoc_pmsg(m, line, ppos, MANDOCERR_NOSCOPE);
! 548: return(1);
1.32 kristaps 549: }
1.84 schwarze 550: break;
1.1 kristaps 551: }
552:
553: assert(n);
1.47 kristaps 554: if ( ! rew_last(m, n))
555: return(0);
556:
557: /*
1.83 schwarze 558: * The current block extends an enclosing block.
559: * Now that the current block ends, close the enclosing block, too.
1.47 kristaps 560: */
1.83 schwarze 561: while (NULL != (n = n->pending)) {
1.47 kristaps 562: if ( ! rew_last(m, n))
563: return(0);
1.83 schwarze 564: if (MDOC_HEAD == n->type &&
565: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.47 kristaps 566: return(0);
567: }
568:
569: return(1);
1.1 kristaps 570: }
571:
572:
573: static int
1.66 kristaps 574: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 575: {
1.66 kristaps 576: int la;
1.55 kristaps 577: enum margserr ac;
1.1 kristaps 578: char *p;
579:
1.66 kristaps 580: if ('\0' == buf[*pos])
1.1 kristaps 581: return(1);
582:
583: for (;;) {
1.66 kristaps 584: la = *pos;
585: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 586:
1.53 kristaps 587: if (ARGS_ERROR == ac)
1.1 kristaps 588: return(0);
1.53 kristaps 589: else if (ARGS_EOLN == ac)
1.1 kristaps 590: break;
1.66 kristaps 591:
1.67 schwarze 592: assert(DELIM_NONE != mdoc_isdelim(p));
1.66 kristaps 593: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 594: return(0);
1.66 kristaps 595:
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: */
1.93 schwarze 607: if (mandoc_eos(p, strlen(p), 0))
1.66 kristaps 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: {
1.83 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:
1.60 kristaps 625: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 626: enum margserr ac;
1.83 schwarze 627: enum mdoct atok, ntok;
1.1 kristaps 628: char *p;
629:
1.60 kristaps 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:
1.83 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) {
1.87 kristaps 653: if (ENDBODY_NOT == n->end)
1.83 schwarze 654: body = n;
655: continue;
656: }
657:
1.88 schwarze 658: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.83 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: */
1.98 ! kristaps 676: make_pending(later, tok, m, line, ppos);
1.83 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;
1.97 kristaps 696: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags)
1.83 schwarze 697: later = n;
698: }
699:
1.1 kristaps 700: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.68 kristaps 701: /* FIXME: do this in validate */
1.22 kristaps 702: if (buf[*pos])
1.68 kristaps 703: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 704: return(0);
1.22 kristaps 705:
1.32 kristaps 706: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 kristaps 707: return(0);
1.32 kristaps 708: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 709: }
710:
1.32 kristaps 711: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 712: return(0);
713:
1.83 schwarze 714: if (NULL == later && maxargs > 0)
1.32 kristaps 715: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 716: return(0);
717:
1.27 kristaps 718: for (flushed = j = 0; ; j++) {
1.1 kristaps 719: lastarg = *pos;
720:
721: if (j == maxargs && ! flushed) {
1.32 kristaps 722: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 723: return(0);
724: flushed = 1;
725: }
726:
1.53 kristaps 727: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 728:
1.53 kristaps 729: if (ARGS_ERROR == ac)
1.1 kristaps 730: return(0);
1.53 kristaps 731: if (ARGS_PUNCT == ac)
1.1 kristaps 732: break;
1.53 kristaps 733: if (ARGS_EOLN == ac)
1.1 kristaps 734: break;
735:
1.54 kristaps 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);
1.54 kristaps 741: continue;
742: }
1.1 kristaps 743:
1.54 kristaps 744: if ( ! flushed) {
745: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
746: return(0);
747: flushed = 1;
748: }
1.82 kristaps 749: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 750: return(0);
1.54 kristaps 751: break;
1.1 kristaps 752: }
753:
1.32 kristaps 754: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 755: return(0);
756:
1.60 kristaps 757: if ( ! nl)
1.1 kristaps 758: return(1);
1.32 kristaps 759: return(append_delims(m, line, pos, buf));
1.1 kristaps 760: }
761:
762:
763: static int
764: in_line(MACRO_PROT_ARGS)
765: {
1.70 kristaps 766: int la, scope, cnt, nc, nl;
1.56 kristaps 767: enum margverr av;
1.53 kristaps 768: enum mdoct ntok;
1.55 kristaps 769: enum margserr ac;
1.67 schwarze 770: enum mdelim d;
1.53 kristaps 771: struct mdoc_arg *arg;
772: char *p;
1.1 kristaps 773:
1.60 kristaps 774: nl = MDOC_NEWLINE & m->flags;
775:
1.4 kristaps 776: /*
777: * Whether we allow ignored elements (those without content,
778: * usually because of reserved words) to squeak by.
779: */
1.45 kristaps 780:
1.4 kristaps 781: switch (tok) {
1.26 kristaps 782: case (MDOC_An):
783: /* FALLTHROUGH */
784: case (MDOC_Ar):
1.4 kristaps 785: /* FALLTHROUGH */
786: case (MDOC_Fl):
787: /* FALLTHROUGH */
1.96 kristaps 788: case (MDOC_Mt):
1.12 kristaps 789: /* FALLTHROUGH */
1.26 kristaps 790: case (MDOC_Nm):
791: /* FALLTHROUGH */
1.25 kristaps 792: case (MDOC_Pa):
1.4 kristaps 793: nc = 1;
794: break;
795: default:
796: nc = 0;
797: break;
798: }
799:
1.27 kristaps 800: for (arg = NULL;; ) {
1.1 kristaps 801: la = *pos;
1.56 kristaps 802: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 803:
1.56 kristaps 804: if (ARGV_WORD == av) {
1.1 kristaps 805: *pos = la;
806: break;
807: }
1.56 kristaps 808: if (ARGV_EOLN == av)
1.1 kristaps 809: break;
1.56 kristaps 810: if (ARGV_ARG == av)
1.1 kristaps 811: continue;
812:
813: mdoc_argv_free(arg);
814: return(0);
815: }
816:
1.70 kristaps 817: for (cnt = scope = 0;; ) {
1.1 kristaps 818: la = *pos;
1.53 kristaps 819: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 820:
1.53 kristaps 821: if (ARGS_ERROR == ac)
1.1 kristaps 822: return(0);
1.53 kristaps 823: if (ARGS_EOLN == ac)
1.1 kristaps 824: break;
1.53 kristaps 825: if (ARGS_PUNCT == ac)
1.1 kristaps 826: break;
827:
1.53 kristaps 828: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 829:
1.4 kristaps 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: */
1.1 kristaps 836:
1.53 kristaps 837: if (MDOC_MAX != ntok) {
1.70 kristaps 838: if (scope && ! rew_elem(m, tok))
1.1 kristaps 839: return(0);
1.4 kristaps 840: if (nc && 0 == cnt) {
1.32 kristaps 841: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 842: return(0);
1.32 kristaps 843: if ( ! rew_last(m, m->last))
1.12 kristaps 844: return(0);
1.7 kristaps 845: } else if ( ! nc && 0 == cnt) {
846: mdoc_argv_free(arg);
1.68 kristaps 847: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 848: return(0);
1.7 kristaps 849: }
1.82 kristaps 850: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 851: return(0);
1.60 kristaps 852: if ( ! nl)
1.1 kristaps 853: return(1);
1.32 kristaps 854: return(append_delims(m, line, pos, buf));
1.29 kristaps 855: }
1.1 kristaps 856:
1.4 kristaps 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: */
1.1 kristaps 862:
1.67 schwarze 863: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 864:
1.70 kristaps 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);
1.70 kristaps 889: scope = 0;
890: } else if ( ! scope) {
1.32 kristaps 891: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 892: return(0);
1.70 kristaps 893: scope = 1;
1.1 kristaps 894: }
895:
1.67 schwarze 896: if (DELIM_NONE == d)
1.3 kristaps 897: cnt++;
1.32 kristaps 898: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 899: return(0);
1.39 kristaps 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: */
1.70 kristaps 906: if (scope && MDOC_Fl == tok) {
1.39 kristaps 907: if ( ! rew_elem(m, tok))
908: return(0);
1.70 kristaps 909: scope = 0;
1.39 kristaps 910: }
1.1 kristaps 911: }
912:
1.70 kristaps 913: if (scope && ! rew_elem(m, tok))
1.1 kristaps 914: return(0);
1.4 kristaps 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: */
1.45 kristaps 921:
1.4 kristaps 922: if (nc && 0 == cnt) {
1.32 kristaps 923: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 924: return(0);
1.32 kristaps 925: if ( ! rew_last(m, m->last))
1.12 kristaps 926: return(0);
1.7 kristaps 927: } else if ( ! nc && 0 == cnt) {
928: mdoc_argv_free(arg);
1.68 kristaps 929: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 930: return(0);
1.7 kristaps 931: }
1.4 kristaps 932:
1.60 kristaps 933: if ( ! nl)
1.1 kristaps 934: return(1);
1.32 kristaps 935: return(append_delims(m, line, pos, buf));
1.1 kristaps 936: }
937:
938:
939: static int
940: blk_full(MACRO_PROT_ARGS)
941: {
1.63 kristaps 942: int la, nl;
1.1 kristaps 943: struct mdoc_arg *arg;
1.45 kristaps 944: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 945: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 946: struct mdoc_node *n;
1.74 kristaps 947: enum mdoc_type mtt;
1.53 kristaps 948: enum mdoct ntok;
1.59 kristaps 949: enum margserr ac, lac;
1.56 kristaps 950: enum margverr av;
1.1 kristaps 951: char *p;
952:
1.63 kristaps 953: nl = MDOC_NEWLINE & m->flags;
954:
1.45 kristaps 955: /* Close out prior implicit scope. */
1.19 kristaps 956:
1.1 kristaps 957: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.32 kristaps 958: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 959: return(0);
1.32 kristaps 960: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 961: return(0);
962: }
963:
1.45 kristaps 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;; ) {
1.45 kristaps 974: la = *pos;
1.56 kristaps 975: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 976:
1.56 kristaps 977: if (ARGV_WORD == av) {
1.45 kristaps 978: *pos = la;
1.1 kristaps 979: break;
980: }
981:
1.56 kristaps 982: if (ARGV_EOLN == av)
1.1 kristaps 983: break;
1.56 kristaps 984: if (ARGV_ARG == av)
1.1 kristaps 985: continue;
986:
987: mdoc_argv_free(arg);
988: return(0);
989: }
990:
1.32 kristaps 991: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 992: return(0);
993:
1.49 kristaps 994: head = body = NULL;
1.1 kristaps 995:
1.45 kristaps 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: */
1.19 kristaps 1000:
1.45 kristaps 1001: if (MDOC_Nd == tok) {
1002: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1003: return(0);
1004: head = m->last;
1.32 kristaps 1005: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.19 kristaps 1006: return(0);
1.32 kristaps 1007: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.19 kristaps 1008: return(0);
1.49 kristaps 1009: body = m->last;
1.19 kristaps 1010: }
1011:
1.59 kristaps 1012: ac = ARGS_ERROR;
1013:
1.62 kristaps 1014: for ( ; ; ) {
1.45 kristaps 1015: la = *pos;
1.75 kristaps 1016: /* Initialise last-phrase-type with ARGS_PEND. */
1017: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.53 kristaps 1018: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.89 schwarze 1019:
1020: if (ARGS_PUNCT == ac)
1021: break;
1.1 kristaps 1022:
1.53 kristaps 1023: if (ARGS_ERROR == ac)
1.1 kristaps 1024: return(0);
1.75 kristaps 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;
1.75 kristaps 1042: }
1.45 kristaps 1043:
1.73 kristaps 1044: /*
1045: * Emit leading punctuation (i.e., punctuation before
1046: * the MDOC_HEAD) for non-phrase types.
1047: */
1.45 kristaps 1048:
1.59 kristaps 1049: if (NULL == head &&
1.71 kristaps 1050: ARGS_PEND != ac &&
1.59 kristaps 1051: ARGS_PHRASE != ac &&
1.57 kristaps 1052: ARGS_PPHRASE != ac &&
1.53 kristaps 1053: ARGS_QWORD != ac &&
1.67 schwarze 1054: DELIM_OPEN == mdoc_isdelim(p)) {
1.45 kristaps 1055: if ( ! mdoc_word_alloc(m, line, la, p))
1056: return(0);
1057: continue;
1058: }
1059:
1.74 kristaps 1060: /* Open a head if one hasn't been opened. */
1.45 kristaps 1061:
1.74 kristaps 1062: if (NULL == head) {
1.45 kristaps 1063: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1064: return(0);
1065: head = m->last;
1066: }
1067:
1.72 kristaps 1068: if (ARGS_PHRASE == ac ||
1069: ARGS_PEND == ac ||
1070: ARGS_PPHRASE == ac) {
1.73 kristaps 1071: /*
1.74 kristaps 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: /*
1.73 kristaps 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: */
1.74 kristaps 1091:
1.65 kristaps 1092: if (ARGS_PPHRASE == ac)
1093: m->flags |= MDOC_PPHRASE;
1.71 kristaps 1094: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1095: m->flags |= MDOC_PPHRASE;
1096:
1.82 kristaps 1097: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1098: return(0);
1.71 kristaps 1099:
1.65 kristaps 1100: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1101: continue;
1102: }
1103:
1.54 kristaps 1104: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1105:
1106: if (MDOC_MAX == ntok) {
1.53 kristaps 1107: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1108: return(0);
1.53 kristaps 1109: continue;
1.45 kristaps 1110: }
1.53 kristaps 1111:
1.82 kristaps 1112: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.45 kristaps 1113: return(0);
1.53 kristaps 1114: break;
1.45 kristaps 1115: }
1.1 kristaps 1116:
1.45 kristaps 1117: if (NULL == head) {
1118: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1119: return(0);
1.45 kristaps 1120: head = m->last;
1.1 kristaps 1121: }
1122:
1.63 kristaps 1123: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1124: return(0);
1.19 kristaps 1125:
1.49 kristaps 1126: /* If we've already opened our body, exit now. */
1.45 kristaps 1127:
1.49 kristaps 1128: if (NULL != body)
1.77 kristaps 1129: goto out;
1.19 kristaps 1130:
1.47 kristaps 1131: /*
1.49 kristaps 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.
1.47 kristaps 1136: */
1137: for (n = m->last; n && n != head; n = n->parent) {
1.49 kristaps 1138: if (MDOC_BLOCK == n->type &&
1139: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1140: ! (MDOC_VALID & n->flags)) {
1.47 kristaps 1141: n->pending = head;
1142: return(1);
1143: }
1144: }
1145:
1.45 kristaps 1146: /* Close out scopes to remain in a consistent state. */
1147:
1.32 kristaps 1148: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1149: return(0);
1.32 kristaps 1150: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1151: return(0);
1152:
1.77 kristaps 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: {
1.63 kristaps 1170: int la, nl;
1.53 kristaps 1171: enum mdoct ntok;
1.55 kristaps 1172: enum margserr ac;
1.1 kristaps 1173: char *p;
1.43 kristaps 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:
1.63 kristaps 1178: nl = MDOC_NEWLINE & m->flags;
1179:
1.43 kristaps 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: */
1.32 kristaps 1188:
1189: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1190: return(0);
1.43 kristaps 1191:
1.32 kristaps 1192: blk = m->last;
1.43 kristaps 1193:
1.32 kristaps 1194: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1195: return(0);
1.32 kristaps 1196: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1197: return(0);
1198:
1.43 kristaps 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:
1.43 kristaps 1205: for (body = NULL; ; ) {
1.32 kristaps 1206: la = *pos;
1.53 kristaps 1207: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.43 kristaps 1208:
1.53 kristaps 1209: if (ARGS_ERROR == ac)
1.1 kristaps 1210: return(0);
1.53 kristaps 1211: if (ARGS_EOLN == ac)
1.43 kristaps 1212: break;
1.53 kristaps 1213: if (ARGS_PUNCT == ac)
1.1 kristaps 1214: break;
1215:
1.53 kristaps 1216: if (NULL == body && ARGS_QWORD != ac &&
1.67 schwarze 1217: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 kristaps 1218: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1219: return(0);
1220: continue;
1221: }
1222:
1.43 kristaps 1223: if (NULL == body) {
1224: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1225: return(0);
1226: body = m->last;
1227: }
1228:
1.54 kristaps 1229: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1230:
1231: if (MDOC_MAX == ntok) {
1.53 kristaps 1232: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1233: return(0);
1.53 kristaps 1234: continue;
1235: }
1.43 kristaps 1236:
1.82 kristaps 1237: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1238: return(0);
1.53 kristaps 1239: break;
1.1 kristaps 1240: }
1241:
1.43 kristaps 1242: /* Clean-ups to leave in a consistent state. */
1243:
1.44 kristaps 1244: if (NULL == body) {
1245: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1246: return(0);
1247: body = m->last;
1.64 kristaps 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)
1.93 schwarze 1259: if (mandoc_eos(n->string, strlen(n->string), 1))
1.64 kristaps 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;
1.44 kristaps 1267: }
1.43 kristaps 1268:
1.83 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)) {
1.98 ! kristaps 1278: make_pending(n, tok, m, line, ppos);
1.83 schwarze 1279: if ( ! mdoc_endbody_alloc(m, line, ppos,
1280: tok, body, ENDBODY_NOSPACE))
1281: return(0);
1282: return(1);
1283: }
1284: }
1285:
1.32 kristaps 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
1.47 kristaps 1290: * crufty use of `Op' breakage.
1.1 kristaps 1291: */
1.88 schwarze 1292: if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPENEST,
1293: line, ppos, "%s broken", mdoc_macronames[tok]))
1.32 kristaps 1294: return(0);
1.43 kristaps 1295:
1.83 schwarze 1296: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.32 kristaps 1297: return(0);
1.1 kristaps 1298:
1.32 kristaps 1299: /* Standard appending of delimiters. */
1.1 kristaps 1300:
1.63 kristaps 1301: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1302: return(0);
1303:
1.32 kristaps 1304: /* Rewind scope, if applicable. */
1.1 kristaps 1305:
1.83 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: {
1.60 kristaps 1316: int la, nl;
1.55 kristaps 1317: enum margserr ac;
1.43 kristaps 1318: struct mdoc_node *head; /* keep track of head */
1319: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1320: char *p;
1.53 kristaps 1321: enum mdoct ntok;
1.1 kristaps 1322:
1.60 kristaps 1323: nl = MDOC_NEWLINE & m->flags;
1324:
1.43 kristaps 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: */
1.32 kristaps 1330:
1331: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1332: return(0);
1.32 kristaps 1333:
1.43 kristaps 1334: for (head = body = NULL; ; ) {
1.32 kristaps 1335: la = *pos;
1.53 kristaps 1336: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1337:
1.53 kristaps 1338: if (ARGS_ERROR == ac)
1.1 kristaps 1339: return(0);
1.53 kristaps 1340: if (ARGS_PUNCT == ac)
1.1 kristaps 1341: break;
1.53 kristaps 1342: if (ARGS_EOLN == ac)
1.1 kristaps 1343: break;
1.43 kristaps 1344:
1345: /* Flush out leading punctuation. */
1346:
1.53 kristaps 1347: if (NULL == head && ARGS_QWORD != ac &&
1.67 schwarze 1348: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 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);
1.43 kristaps 1359: head = m->last;
1.1 kristaps 1360: }
1361:
1.43 kristaps 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:
1.32 kristaps 1374: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1375: return(0);
1.32 kristaps 1376: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1377: return(0);
1.43 kristaps 1378: body = m->last;
1379:
1380: if (MDOC_Eo == tok)
1381: continue;
1.1 kristaps 1382: }
1.43 kristaps 1383:
1384: assert(NULL != head && NULL != body);
1385:
1.54 kristaps 1386: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1387:
1388: if (MDOC_MAX == ntok) {
1.53 kristaps 1389: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1390: return(0);
1.53 kristaps 1391: continue;
1.43 kristaps 1392: }
1393:
1.82 kristaps 1394: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1395: return(0);
1.53 kristaps 1396: break;
1.1 kristaps 1397: }
1398:
1.43 kristaps 1399: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1400:
1.43 kristaps 1401: if (NULL == head) {
1402: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1403: return(0);
1404: head = m->last;
1405: }
1406:
1407: if (NULL == body) {
1.32 kristaps 1408: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1409: return(0);
1.32 kristaps 1410: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1411: return(0);
1.43 kristaps 1412: body = m->last;
1.1 kristaps 1413: }
1414:
1.32 kristaps 1415: /* Standard appending of delimiters. */
1416:
1.60 kristaps 1417: if ( ! nl)
1.1 kristaps 1418: return(1);
1.32 kristaps 1419: return(append_delims(m, line, pos, buf));
1.1 kristaps 1420: }
1421:
1422:
1.61 kristaps 1423: /* ARGSUSED */
1.1 kristaps 1424: static int
1425: in_line_argn(MACRO_PROT_ARGS)
1426: {
1.60 kristaps 1427: int la, flushed, j, maxargs, nl;
1.55 kristaps 1428: enum margserr ac;
1.56 kristaps 1429: enum margverr av;
1.53 kristaps 1430: struct mdoc_arg *arg;
1431: char *p;
1432: enum mdoct ntok;
1.1 kristaps 1433:
1.60 kristaps 1434: nl = MDOC_NEWLINE & m->flags;
1435:
1.46 kristaps 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;
1.42 kristaps 1454: case (MDOC_Xr):
1455: maxargs = 2;
1456: break;
1.1 kristaps 1457: default:
1458: maxargs = 1;
1459: break;
1460: }
1461:
1.46 kristaps 1462: for (arg = NULL; ; ) {
1.32 kristaps 1463: la = *pos;
1.56 kristaps 1464: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1465:
1.56 kristaps 1466: if (ARGV_WORD == av) {
1.32 kristaps 1467: *pos = la;
1.1 kristaps 1468: break;
1469: }
1470:
1.56 kristaps 1471: if (ARGV_EOLN == av)
1.1 kristaps 1472: break;
1.56 kristaps 1473: if (ARGV_ARG == av)
1.1 kristaps 1474: continue;
1475:
1476: mdoc_argv_free(arg);
1477: return(0);
1478: }
1479:
1.46 kristaps 1480: for (flushed = j = 0; ; ) {
1.32 kristaps 1481: la = *pos;
1.53 kristaps 1482: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1483:
1.53 kristaps 1484: if (ARGS_ERROR == ac)
1.1 kristaps 1485: return(0);
1.53 kristaps 1486: if (ARGS_PUNCT == ac)
1.1 kristaps 1487: break;
1.53 kristaps 1488: if (ARGS_EOLN == ac)
1.1 kristaps 1489: break;
1490:
1.46 kristaps 1491: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1492: ARGS_QWORD != ac &&
1.67 schwarze 1493: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.46 kristaps 1494: if ( ! mdoc_word_alloc(m, line, la, p))
1495: return(0);
1496: continue;
1497: } else if (0 == j)
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:
1.54 kristaps 1507: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1508:
1509: if (MDOC_MAX != ntok) {
1.32 kristaps 1510: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1511: return(0);
1512: flushed = 1;
1.82 kristaps 1513: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1514: return(0);
1.46 kristaps 1515: j++;
1.1 kristaps 1516: break;
1517: }
1518:
1519: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1520: ARGS_QWORD != ac &&
1.67 schwarze 1521: ! flushed &&
1522: DELIM_NONE != mdoc_isdelim(p)) {
1.32 kristaps 1523: if ( ! rew_elem(m, tok))
1.1 kristaps 1524: return(0);
1525: flushed = 1;
1526: }
1.42 kristaps 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: */
1.43 kristaps 1534:
1.46 kristaps 1535: #ifdef __OpenBSD__
1.42 kristaps 1536: if (MDOC_Xr == tok && j == maxargs) {
1.46 kristaps 1537: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.42 kristaps 1538: return(0);
1539: if ( ! rew_elem(m, MDOC_Ns))
1540: return(0);
1541: }
1.46 kristaps 1542: #endif
1.42 kristaps 1543:
1.32 kristaps 1544: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1545: return(0);
1.46 kristaps 1546: j++;
1.1 kristaps 1547: }
1548:
1.46 kristaps 1549: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1550: return(0);
1551:
1552: /* Close out in a consistent state. */
1.32 kristaps 1553:
1554: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1555: return(0);
1.60 kristaps 1556: if ( ! nl)
1.1 kristaps 1557: return(1);
1.32 kristaps 1558: return(append_delims(m, line, pos, buf));
1.1 kristaps 1559: }
1560:
1561:
1562: static int
1563: in_line_eoln(MACRO_PROT_ARGS)
1564: {
1.56 kristaps 1565: int la;
1.55 kristaps 1566: enum margserr ac;
1.56 kristaps 1567: enum margverr av;
1.53 kristaps 1568: struct mdoc_arg *arg;
1569: char *p;
1570: enum mdoct ntok;
1.1 kristaps 1571:
1572: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1573:
1.90 schwarze 1574: if (tok == MDOC_Pp)
1575: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1576:
1.32 kristaps 1577: /* Parse macro arguments. */
1.1 kristaps 1578:
1.32 kristaps 1579: for (arg = NULL; ; ) {
1.1 kristaps 1580: la = *pos;
1.56 kristaps 1581: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1582:
1.56 kristaps 1583: if (ARGV_WORD == av) {
1.1 kristaps 1584: *pos = la;
1585: break;
1586: }
1.56 kristaps 1587: if (ARGV_EOLN == av)
1.1 kristaps 1588: break;
1.56 kristaps 1589: if (ARGV_ARG == av)
1.1 kristaps 1590: continue;
1591:
1592: mdoc_argv_free(arg);
1593: return(0);
1594: }
1595:
1.32 kristaps 1596: /* Open element scope. */
1597:
1598: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1599: return(0);
1600:
1.32 kristaps 1601: /* Parse argument terms. */
1.1 kristaps 1602:
1603: for (;;) {
1604: la = *pos;
1.53 kristaps 1605: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1606:
1.53 kristaps 1607: if (ARGS_ERROR == ac)
1.1 kristaps 1608: return(0);
1.53 kristaps 1609: if (ARGS_EOLN == ac)
1.1 kristaps 1610: break;
1611:
1.53 kristaps 1612: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1613:
1.53 kristaps 1614: if (MDOC_MAX == ntok) {
1615: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1616: return(0);
1.53 kristaps 1617: continue;
1618: }
1.1 kristaps 1619:
1.53 kristaps 1620: if ( ! rew_elem(m, tok))
1.1 kristaps 1621: return(0);
1.82 kristaps 1622: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1623: }
1624:
1.32 kristaps 1625: /* Close out (no delimiters). */
1626:
1627: return(rew_elem(m, tok));
1.1 kristaps 1628: }
1629:
1630:
1631: /* ARGSUSED */
1632: static int
1.41 kristaps 1633: ctx_synopsis(MACRO_PROT_ARGS)
1634: {
1.60 kristaps 1635: int nl;
1636:
1637: nl = MDOC_NEWLINE & m->flags;
1.41 kristaps 1638:
1639: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.90 schwarze 1640: if ( ! (MDOC_SYNOPSIS & m->flags))
1.82 kristaps 1641: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1642:
1643: /* If we're a nested call, same place. */
1.60 kristaps 1644: if ( ! nl)
1.82 kristaps 1645: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1646:
1647: /*
1648: * XXX: this will open a block scope; however, if later we end
1649: * up formatting the block scope, then child nodes will inherit
1650: * the formatting. Be careful.
1651: */
1.88 schwarze 1652: if (MDOC_Nm == tok)
1653: return(blk_full(m, tok, line, ppos, pos, buf));
1654: assert(MDOC_Vt == tok);
1.82 kristaps 1655: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.41 kristaps 1656: }
1657:
1658:
1659: /* ARGSUSED */
1660: static int
1.1 kristaps 1661: obsolete(MACRO_PROT_ARGS)
1662: {
1663:
1.68 kristaps 1664: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1665: }
1666:
1667:
1.24 kristaps 1668: /*
1669: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1670: * They're unusual because they're basically free-form text until a
1671: * macro is encountered.
1672: */
1.1 kristaps 1673: static int
1.82 kristaps 1674: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1675: {
1.53 kristaps 1676: int la, pos;
1.75 kristaps 1677: enum margserr ac;
1.53 kristaps 1678: enum mdoct ntok;
1679: char *p;
1.1 kristaps 1680:
1.24 kristaps 1681: for (pos = ppos; ; ) {
1682: la = pos;
1.1 kristaps 1683:
1.75 kristaps 1684: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1685:
1.75 kristaps 1686: if (ARGS_ERROR == ac)
1.24 kristaps 1687: return(0);
1.75 kristaps 1688: if (ARGS_EOLN == ac)
1.24 kristaps 1689: break;
1.1 kristaps 1690:
1.75 kristaps 1691: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1692:
1.53 kristaps 1693: if (MDOC_MAX == ntok) {
1694: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1695: return(0);
1.53 kristaps 1696: continue;
1697: }
1.1 kristaps 1698:
1.82 kristaps 1699: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1700: return(0);
1.53 kristaps 1701: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1702: }
1703:
1704: return(1);
1705: }
1.24 kristaps 1706:
1707:
1.79 kristaps 1708: /* ARGSUSED */
1.75 kristaps 1709: static int
1710: phrase_ta(MACRO_PROT_ARGS)
1711: {
1712: int la;
1713: enum mdoct ntok;
1714: enum margserr ac;
1715: char *p;
1716:
1717: /*
1718: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1719: * it should simply error out with ARGSLOST.
1720: */
1721:
1722: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1723: return(0);
1724: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1725: return(0);
1726:
1727: for (;;) {
1728: la = *pos;
1729: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1730:
1731: if (ARGS_ERROR == ac)
1732: return(0);
1733: if (ARGS_EOLN == ac)
1734: break;
1735:
1736: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1737:
1738: if (MDOC_MAX == ntok) {
1739: if ( ! mdoc_word_alloc(m, line, la, p))
1740: return(0);
1741: continue;
1742: }
1743:
1.82 kristaps 1744: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.75 kristaps 1745: return(0);
1746: return(append_delims(m, line, pos, buf));
1747: }
1748:
1749: return(1);
1750: }
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