Annotation of mandoc/mdoc_macro.c, Revision 1.99
1.99 ! kristaps 1: /* $Id: mdoc_macro.c,v 1.98 2010/12/06 11:01:19 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: {
1.99 ! kristaps 255: struct mdoc_node *n;
1.1 kristaps 256:
257: assert(to);
258: mdoc->next = MDOC_NEXT_SIBLING;
259:
260: /* LINTED */
261: while (mdoc->last != to) {
262: if ( ! mdoc_valid_post(mdoc))
263: return(0);
1.99 ! kristaps 264: n = mdoc->last;
1.1 kristaps 265: mdoc->last = mdoc->last->parent;
266: assert(mdoc->last);
1.99 ! kristaps 267: mdoc->last->last = n;
1.1 kristaps 268: }
269:
1.97 kristaps 270: return(mdoc_valid_post(mdoc));
1.1 kristaps 271: }
272:
273:
1.32 kristaps 274: /*
1.84 schwarze 275: * For a block closing macro, return the corresponding opening one.
276: * Otherwise, return the macro itself.
1.32 kristaps 277: */
1.47 kristaps 278: static enum mdoct
279: rew_alt(enum mdoct tok)
1.1 kristaps 280: {
281: switch (tok) {
282: case (MDOC_Ac):
283: return(MDOC_Ao);
284: case (MDOC_Bc):
285: return(MDOC_Bo);
286: case (MDOC_Brc):
287: return(MDOC_Bro);
288: case (MDOC_Dc):
289: return(MDOC_Do);
290: case (MDOC_Ec):
291: return(MDOC_Eo);
292: case (MDOC_Ed):
293: return(MDOC_Bd);
294: case (MDOC_Ef):
295: return(MDOC_Bf);
296: case (MDOC_Ek):
297: return(MDOC_Bk);
298: case (MDOC_El):
299: return(MDOC_Bl);
300: case (MDOC_Fc):
301: return(MDOC_Fo);
302: case (MDOC_Oc):
303: return(MDOC_Oo);
304: case (MDOC_Pc):
305: return(MDOC_Po);
306: case (MDOC_Qc):
307: return(MDOC_Qo);
308: case (MDOC_Re):
309: return(MDOC_Rs);
310: case (MDOC_Sc):
311: return(MDOC_So);
312: case (MDOC_Xc):
313: return(MDOC_Xo);
314: default:
1.84 schwarze 315: return(tok);
1.1 kristaps 316: }
317: /* NOTREACHED */
318: }
319:
320:
1.84 schwarze 321: /*
322: * Rewinding to tok, how do we have to handle *p?
323: * REWIND_NONE: *p would delimit tok, but no tok scope is open
324: * inside *p, so there is no need to rewind anything at all.
325: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
326: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.98 kristaps 327: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.84 schwarze 328: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
329: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 330: */
1.51 kristaps 331: static enum rew
1.47 kristaps 332: rew_dohalt(enum mdoct tok, enum mdoc_type type,
333: const struct mdoc_node *p)
1.1 kristaps 334: {
335:
1.86 schwarze 336: /*
337: * No matching token, no delimiting block, no broken block.
338: * This can happen when full implicit macros are called for
339: * the first time but try to rewind their previous
340: * instance anyway.
341: */
1.1 kristaps 342: if (MDOC_ROOT == p->type)
1.84 schwarze 343: return(MDOC_BLOCK == type &&
344: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
345: REWIND_ERROR : REWIND_NONE);
1.86 schwarze 346:
347: /*
348: * When starting to rewind, skip plain text
349: * and nodes that have already been rewound.
350: */
1.84 schwarze 351: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
352: return(REWIND_MORE);
353:
1.86 schwarze 354: /*
355: * The easiest case: Found a matching token.
356: * This applies to both blocks and elements.
357: */
1.84 schwarze 358: tok = rew_alt(tok);
359: if (tok == p->tok)
360: return(p->end ? REWIND_NONE :
361: type == p->type ? REWIND_THIS : REWIND_MORE);
362:
1.86 schwarze 363: /*
364: * While elements do require rewinding for themselves,
365: * they never affect rewinding of other nodes.
366: */
1.84 schwarze 367: if (MDOC_ELEM == p->type)
368: return(REWIND_MORE);
1.1 kristaps 369:
1.86 schwarze 370: /*
371: * Blocks delimited by our target token get REWIND_MORE.
372: * Blocks delimiting our target token get REWIND_NONE.
373: */
1.1 kristaps 374: switch (tok) {
1.84 schwarze 375: case (MDOC_Bl):
376: if (MDOC_It == p->tok)
377: return(REWIND_MORE);
1.1 kristaps 378: break;
379: case (MDOC_It):
380: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.84 schwarze 381: return(REWIND_NONE);
1.1 kristaps 382: break;
1.84 schwarze 383: /*
384: * XXX Badly nested block handling still fails badly
385: * when one block is breaking two blocks of the same type.
386: * This is an incomplete and extremely ugly workaround,
387: * required to let the OpenBSD tree build.
388: */
389: case (MDOC_Oo):
390: if (MDOC_Op == p->tok)
391: return(REWIND_MORE);
1.1 kristaps 392: break;
1.88 schwarze 393: case (MDOC_Nm):
394: return(REWIND_NONE);
1.19 kristaps 395: case (MDOC_Nd):
396: /* FALLTHROUGH */
1.1 kristaps 397: case (MDOC_Ss):
398: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.84 schwarze 399: return(REWIND_NONE);
1.1 kristaps 400: /* FALLTHROUGH */
401: case (MDOC_Sh):
1.84 schwarze 402: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
403: MDOC_Sh == p->tok)
404: return(REWIND_MORE);
1.1 kristaps 405: break;
406: default:
407: break;
408: }
409:
1.86 schwarze 410: /*
411: * Default block rewinding rules.
1.88 schwarze 412: * In particular, always skip block end markers,
413: * and let all blocks rewind Nm children.
1.86 schwarze 414: */
1.88 schwarze 415: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
416: (MDOC_BLOCK == p->type &&
1.86 schwarze 417: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
418: return(REWIND_MORE);
419:
420: /*
1.98 kristaps 421: * By default, closing out full blocks
422: * forces closing of broken explicit blocks,
423: * while closing out partial blocks
424: * allows delayed rewinding by default.
1.86 schwarze 425: */
1.98 kristaps 426: return (&blk_full == mdoc_macros[tok].fp ?
427: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 428: }
429:
430:
431: static int
1.47 kristaps 432: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 433: {
434: struct mdoc_node *n;
435:
436: n = mdoc->last;
437: if (MDOC_ELEM != n->type)
438: n = n->parent;
439: assert(MDOC_ELEM == n->type);
440: assert(tok == n->tok);
441:
442: return(rew_last(mdoc, n));
443: }
444:
445:
1.83 schwarze 446: /*
447: * We are trying to close a block identified by tok,
448: * but the child block *broken is still open.
449: * Thus, postpone closing the tok block
450: * until the rew_sub call closing *broken.
451: */
452: static int
453: make_pending(struct mdoc_node *broken, enum mdoct tok,
454: struct mdoc *m, int line, int ppos)
455: {
456: struct mdoc_node *breaker;
457:
458: /*
459: * Iterate backwards, searching for the block matching tok,
460: * that is, the block breaking the *broken block.
461: */
462: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
463:
464: /*
465: * If the *broken block had already been broken before
466: * and we encounter its breaker, make the tok block
467: * pending on the inner breaker.
468: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
469: * becomes "[A broken=[B [C->B B] tok=A] C]"
470: * and finally "[A [B->A [C->B B] A] C]".
471: */
472: if (breaker == broken->pending) {
473: broken = breaker;
474: continue;
475: }
476:
1.84 schwarze 477: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.83 schwarze 478: continue;
479: if (MDOC_BODY == broken->type)
480: broken = broken->parent;
481:
482: /*
483: * Found the breaker.
484: * If another, outer breaker is already pending on
485: * the *broken block, we must not clobber the link
486: * to the outer breaker, but make it pending on the
487: * new, now inner breaker.
488: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
489: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
490: * and finally "[A [B->A [C->B A] B] C]".
491: */
492: if (broken->pending) {
493: struct mdoc_node *taker;
494:
495: /*
496: * If the breaker had also been broken before,
497: * it cannot take on the outer breaker itself,
498: * but must hand it on to its own breakers.
499: * Graphically, this is the following situation:
500: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
501: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
502: */
503: taker = breaker;
504: while (taker->pending)
505: taker = taker->pending;
506: taker->pending = broken->pending;
507: }
508: broken->pending = breaker;
1.88 schwarze 509: mdoc_vmsg(m, MANDOCERR_SCOPENEST, line, ppos,
510: "%s breaks %s", mdoc_macronames[tok],
511: mdoc_macronames[broken->tok]);
1.83 schwarze 512: return(1);
513: }
514:
515: /*
516: * Found no matching block for tok.
517: * Are you trying to close a block that is not open?
518: */
519: return(0);
520: }
521:
1.84 schwarze 522:
1.1 kristaps 523: static int
1.32 kristaps 524: rew_sub(enum mdoc_type t, struct mdoc *m,
1.47 kristaps 525: enum mdoct tok, int line, int ppos)
1.1 kristaps 526: {
527: struct mdoc_node *n;
528:
1.84 schwarze 529: n = m->last;
530: while (n) {
531: switch (rew_dohalt(tok, t, n)) {
532: case (REWIND_NONE):
533: return(1);
534: case (REWIND_THIS):
535: break;
1.98 kristaps 536: case (REWIND_FORCE):
537: mdoc_vmsg(m, MANDOCERR_SCOPEBROKEN, line, ppos,
538: "%s breaks %s", mdoc_macronames[tok],
539: mdoc_macronames[n->tok]);
540: /* FALLTHROUGH */
1.84 schwarze 541: case (REWIND_MORE):
542: n = n->parent;
543: continue;
544: case (REWIND_LATER):
1.98 kristaps 545: if (make_pending(n, tok, m, line, ppos) ||
546: MDOC_BLOCK != t)
547: return(1);
548: /* FALLTHROUGH */
1.84 schwarze 549: case (REWIND_ERROR):
1.98 kristaps 550: mdoc_pmsg(m, line, ppos, MANDOCERR_NOSCOPE);
551: return(1);
1.32 kristaps 552: }
1.84 schwarze 553: break;
1.1 kristaps 554: }
555:
556: assert(n);
1.47 kristaps 557: if ( ! rew_last(m, n))
558: return(0);
559:
560: /*
1.83 schwarze 561: * The current block extends an enclosing block.
562: * Now that the current block ends, close the enclosing block, too.
1.47 kristaps 563: */
1.83 schwarze 564: while (NULL != (n = n->pending)) {
1.47 kristaps 565: if ( ! rew_last(m, n))
566: return(0);
1.83 schwarze 567: if (MDOC_HEAD == n->type &&
568: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.47 kristaps 569: return(0);
570: }
571:
572: return(1);
1.1 kristaps 573: }
574:
575:
576: static int
1.66 kristaps 577: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 578: {
1.66 kristaps 579: int la;
1.55 kristaps 580: enum margserr ac;
1.1 kristaps 581: char *p;
582:
1.66 kristaps 583: if ('\0' == buf[*pos])
1.1 kristaps 584: return(1);
585:
586: for (;;) {
1.66 kristaps 587: la = *pos;
588: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 589:
1.53 kristaps 590: if (ARGS_ERROR == ac)
1.1 kristaps 591: return(0);
1.53 kristaps 592: else if (ARGS_EOLN == ac)
1.1 kristaps 593: break;
1.66 kristaps 594:
1.67 schwarze 595: assert(DELIM_NONE != mdoc_isdelim(p));
1.66 kristaps 596: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 597: return(0);
1.66 kristaps 598:
599: /*
600: * If we encounter end-of-sentence symbols, then trigger
601: * the double-space.
602: *
603: * XXX: it's easy to allow this to propogate outward to
604: * the last symbol, such that `. )' will cause the
605: * correct double-spacing. However, (1) groff isn't
606: * smart enough to do this and (2) it would require
607: * knowing which symbols break this behaviour, for
608: * example, `. ;' shouldn't propogate the double-space.
609: */
1.93 schwarze 610: if (mandoc_eos(p, strlen(p), 0))
1.66 kristaps 611: m->last->flags |= MDOC_EOS;
1.1 kristaps 612: }
613:
614: return(1);
615: }
616:
617:
618: /*
619: * Close out block partial/full explicit.
620: */
621: static int
622: blk_exp_close(MACRO_PROT_ARGS)
623: {
1.83 schwarze 624: struct mdoc_node *body; /* Our own body. */
625: struct mdoc_node *later; /* A sub-block starting later. */
626: struct mdoc_node *n; /* For searching backwards. */
627:
1.60 kristaps 628: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 629: enum margserr ac;
1.83 schwarze 630: enum mdoct atok, ntok;
1.1 kristaps 631: char *p;
632:
1.60 kristaps 633: nl = MDOC_NEWLINE & m->flags;
634:
1.1 kristaps 635: switch (tok) {
636: case (MDOC_Ec):
637: maxargs = 1;
638: break;
639: default:
640: maxargs = 0;
641: break;
642: }
643:
1.83 schwarze 644: /*
645: * Search backwards for beginnings of blocks,
646: * both of our own and of pending sub-blocks.
647: */
648: atok = rew_alt(tok);
649: body = later = NULL;
650: for (n = m->last; n; n = n->parent) {
651: if (MDOC_VALID & n->flags)
652: continue;
653:
654: /* Remember the start of our own body. */
655: if (MDOC_BODY == n->type && atok == n->tok) {
1.87 kristaps 656: if (ENDBODY_NOT == n->end)
1.83 schwarze 657: body = n;
658: continue;
659: }
660:
1.88 schwarze 661: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.83 schwarze 662: continue;
663: if (atok == n->tok) {
664: assert(body);
665:
666: /*
667: * Found the start of our own block.
668: * When there is no pending sub block,
669: * just proceed to closing out.
670: */
671: if (NULL == later)
672: break;
673:
674: /*
675: * When there is a pending sub block,
676: * postpone closing out the current block
677: * until the rew_sub() closing out the sub-block.
678: */
1.98 kristaps 679: make_pending(later, tok, m, line, ppos);
1.83 schwarze 680:
681: /*
682: * Mark the place where the formatting - but not
683: * the scope - of the current block ends.
684: */
685: if ( ! mdoc_endbody_alloc(m, line, ppos,
686: atok, body, ENDBODY_SPACE))
687: return(0);
688: break;
689: }
690:
691: /*
692: * When finding an open sub block, remember the last
693: * open explicit block, or, in case there are only
694: * implicit ones, the first open implicit block.
695: */
696: if (later &&
697: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
698: continue;
1.97 kristaps 699: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags)
1.83 schwarze 700: later = n;
701: }
702:
1.1 kristaps 703: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.68 kristaps 704: /* FIXME: do this in validate */
1.22 kristaps 705: if (buf[*pos])
1.68 kristaps 706: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 707: return(0);
1.22 kristaps 708:
1.32 kristaps 709: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 kristaps 710: return(0);
1.32 kristaps 711: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 712: }
713:
1.32 kristaps 714: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 715: return(0);
716:
1.83 schwarze 717: if (NULL == later && maxargs > 0)
1.32 kristaps 718: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 719: return(0);
720:
1.27 kristaps 721: for (flushed = j = 0; ; j++) {
1.1 kristaps 722: lastarg = *pos;
723:
724: if (j == maxargs && ! flushed) {
1.32 kristaps 725: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 726: return(0);
727: flushed = 1;
728: }
729:
1.53 kristaps 730: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 731:
1.53 kristaps 732: if (ARGS_ERROR == ac)
1.1 kristaps 733: return(0);
1.53 kristaps 734: if (ARGS_PUNCT == ac)
1.1 kristaps 735: break;
1.53 kristaps 736: if (ARGS_EOLN == ac)
1.1 kristaps 737: break;
738:
1.54 kristaps 739: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
740:
741: if (MDOC_MAX == ntok) {
742: if ( ! mdoc_word_alloc(m, line, lastarg, p))
1.1 kristaps 743: return(0);
1.54 kristaps 744: continue;
745: }
1.1 kristaps 746:
1.54 kristaps 747: if ( ! flushed) {
748: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
749: return(0);
750: flushed = 1;
751: }
1.82 kristaps 752: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 753: return(0);
1.54 kristaps 754: break;
1.1 kristaps 755: }
756:
1.32 kristaps 757: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 758: return(0);
759:
1.60 kristaps 760: if ( ! nl)
1.1 kristaps 761: return(1);
1.32 kristaps 762: return(append_delims(m, line, pos, buf));
1.1 kristaps 763: }
764:
765:
766: static int
767: in_line(MACRO_PROT_ARGS)
768: {
1.70 kristaps 769: int la, scope, cnt, nc, nl;
1.56 kristaps 770: enum margverr av;
1.53 kristaps 771: enum mdoct ntok;
1.55 kristaps 772: enum margserr ac;
1.67 schwarze 773: enum mdelim d;
1.53 kristaps 774: struct mdoc_arg *arg;
775: char *p;
1.1 kristaps 776:
1.60 kristaps 777: nl = MDOC_NEWLINE & m->flags;
778:
1.4 kristaps 779: /*
780: * Whether we allow ignored elements (those without content,
781: * usually because of reserved words) to squeak by.
782: */
1.45 kristaps 783:
1.4 kristaps 784: switch (tok) {
1.26 kristaps 785: case (MDOC_An):
786: /* FALLTHROUGH */
787: case (MDOC_Ar):
1.4 kristaps 788: /* FALLTHROUGH */
789: case (MDOC_Fl):
790: /* FALLTHROUGH */
1.96 kristaps 791: case (MDOC_Mt):
1.12 kristaps 792: /* FALLTHROUGH */
1.26 kristaps 793: case (MDOC_Nm):
794: /* FALLTHROUGH */
1.25 kristaps 795: case (MDOC_Pa):
1.4 kristaps 796: nc = 1;
797: break;
798: default:
799: nc = 0;
800: break;
801: }
802:
1.27 kristaps 803: for (arg = NULL;; ) {
1.1 kristaps 804: la = *pos;
1.56 kristaps 805: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 806:
1.56 kristaps 807: if (ARGV_WORD == av) {
1.1 kristaps 808: *pos = la;
809: break;
810: }
1.56 kristaps 811: if (ARGV_EOLN == av)
1.1 kristaps 812: break;
1.56 kristaps 813: if (ARGV_ARG == av)
1.1 kristaps 814: continue;
815:
816: mdoc_argv_free(arg);
817: return(0);
818: }
819:
1.70 kristaps 820: for (cnt = scope = 0;; ) {
1.1 kristaps 821: la = *pos;
1.53 kristaps 822: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 823:
1.53 kristaps 824: if (ARGS_ERROR == ac)
1.1 kristaps 825: return(0);
1.53 kristaps 826: if (ARGS_EOLN == ac)
1.1 kristaps 827: break;
1.53 kristaps 828: if (ARGS_PUNCT == ac)
1.1 kristaps 829: break;
830:
1.53 kristaps 831: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 832:
1.4 kristaps 833: /*
834: * In this case, we've located a submacro and must
835: * execute it. Close out scope, if open. If no
836: * elements have been generated, either create one (nc)
837: * or raise a warning.
838: */
1.1 kristaps 839:
1.53 kristaps 840: if (MDOC_MAX != ntok) {
1.70 kristaps 841: if (scope && ! rew_elem(m, tok))
1.1 kristaps 842: return(0);
1.4 kristaps 843: if (nc && 0 == cnt) {
1.32 kristaps 844: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 845: return(0);
1.32 kristaps 846: if ( ! rew_last(m, m->last))
1.12 kristaps 847: return(0);
1.7 kristaps 848: } else if ( ! nc && 0 == cnt) {
849: mdoc_argv_free(arg);
1.68 kristaps 850: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 851: return(0);
1.7 kristaps 852: }
1.82 kristaps 853: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 854: return(0);
1.60 kristaps 855: if ( ! nl)
1.1 kristaps 856: return(1);
1.32 kristaps 857: return(append_delims(m, line, pos, buf));
1.29 kristaps 858: }
1.1 kristaps 859:
1.4 kristaps 860: /*
861: * Non-quote-enclosed punctuation. Set up our scope, if
862: * a word; rewind the scope, if a delimiter; then append
863: * the word.
864: */
1.1 kristaps 865:
1.67 schwarze 866: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 867:
1.70 kristaps 868: if (DELIM_NONE != d) {
869: /*
870: * If we encounter closing punctuation, no word
871: * has been omitted, no scope is open, and we're
872: * allowed to have an empty element, then start
873: * a new scope. `Ar', `Fl', and `Li', only do
874: * this once per invocation. There may be more
875: * of these (all of them?).
876: */
877: if (0 == cnt && (nc || MDOC_Li == tok) &&
878: DELIM_CLOSE == d && ! scope) {
879: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
880: return(0);
881: if (MDOC_Ar == tok || MDOC_Li == tok ||
882: MDOC_Fl == tok)
883: cnt++;
884: scope = 1;
885: }
886: /*
887: * Close out our scope, if one is open, before
888: * any punctuation.
889: */
890: if (scope && ! rew_elem(m, tok))
1.1 kristaps 891: return(0);
1.70 kristaps 892: scope = 0;
893: } else if ( ! scope) {
1.32 kristaps 894: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 895: return(0);
1.70 kristaps 896: scope = 1;
1.1 kristaps 897: }
898:
1.67 schwarze 899: if (DELIM_NONE == d)
1.3 kristaps 900: cnt++;
1.32 kristaps 901: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 902: return(0);
1.39 kristaps 903:
904: /*
905: * `Fl' macros have their scope re-opened with each new
906: * word so that the `-' can be added to each one without
907: * having to parse out spaces.
908: */
1.70 kristaps 909: if (scope && MDOC_Fl == tok) {
1.39 kristaps 910: if ( ! rew_elem(m, tok))
911: return(0);
1.70 kristaps 912: scope = 0;
1.39 kristaps 913: }
1.1 kristaps 914: }
915:
1.70 kristaps 916: if (scope && ! rew_elem(m, tok))
1.1 kristaps 917: return(0);
1.4 kristaps 918:
919: /*
920: * If no elements have been collected and we're allowed to have
921: * empties (nc), open a scope and close it out. Otherwise,
922: * raise a warning.
923: */
1.45 kristaps 924:
1.4 kristaps 925: if (nc && 0 == cnt) {
1.32 kristaps 926: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 927: return(0);
1.32 kristaps 928: if ( ! rew_last(m, m->last))
1.12 kristaps 929: return(0);
1.7 kristaps 930: } else if ( ! nc && 0 == cnt) {
931: mdoc_argv_free(arg);
1.68 kristaps 932: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 933: return(0);
1.7 kristaps 934: }
1.4 kristaps 935:
1.60 kristaps 936: if ( ! nl)
1.1 kristaps 937: return(1);
1.32 kristaps 938: return(append_delims(m, line, pos, buf));
1.1 kristaps 939: }
940:
941:
942: static int
943: blk_full(MACRO_PROT_ARGS)
944: {
1.63 kristaps 945: int la, nl;
1.1 kristaps 946: struct mdoc_arg *arg;
1.45 kristaps 947: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 948: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 949: struct mdoc_node *n;
1.74 kristaps 950: enum mdoc_type mtt;
1.53 kristaps 951: enum mdoct ntok;
1.59 kristaps 952: enum margserr ac, lac;
1.56 kristaps 953: enum margverr av;
1.1 kristaps 954: char *p;
955:
1.63 kristaps 956: nl = MDOC_NEWLINE & m->flags;
957:
1.45 kristaps 958: /* Close out prior implicit scope. */
1.19 kristaps 959:
1.1 kristaps 960: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.32 kristaps 961: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 962: return(0);
1.32 kristaps 963: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 964: return(0);
965: }
966:
1.45 kristaps 967: /*
968: * This routine accomodates implicitly- and explicitly-scoped
969: * macro openings. Implicit ones first close out prior scope
970: * (seen above). Delay opening the head until necessary to
971: * allow leading punctuation to print. Special consideration
972: * for `It -column', which has phrase-part syntax instead of
973: * regular child nodes.
974: */
975:
1.1 kristaps 976: for (arg = NULL;; ) {
1.45 kristaps 977: la = *pos;
1.56 kristaps 978: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 979:
1.56 kristaps 980: if (ARGV_WORD == av) {
1.45 kristaps 981: *pos = la;
1.1 kristaps 982: break;
983: }
984:
1.56 kristaps 985: if (ARGV_EOLN == av)
1.1 kristaps 986: break;
1.56 kristaps 987: if (ARGV_ARG == av)
1.1 kristaps 988: continue;
989:
990: mdoc_argv_free(arg);
991: return(0);
992: }
993:
1.32 kristaps 994: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 995: return(0);
996:
1.49 kristaps 997: head = body = NULL;
1.1 kristaps 998:
1.45 kristaps 999: /*
1000: * The `Nd' macro has all arguments in its body: it's a hybrid
1001: * of block partial-explicit and full-implicit. Stupid.
1002: */
1.19 kristaps 1003:
1.45 kristaps 1004: if (MDOC_Nd == tok) {
1005: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1006: return(0);
1007: head = m->last;
1.32 kristaps 1008: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.19 kristaps 1009: return(0);
1.32 kristaps 1010: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.19 kristaps 1011: return(0);
1.49 kristaps 1012: body = m->last;
1.19 kristaps 1013: }
1014:
1.59 kristaps 1015: ac = ARGS_ERROR;
1016:
1.62 kristaps 1017: for ( ; ; ) {
1.45 kristaps 1018: la = *pos;
1.75 kristaps 1019: /* Initialise last-phrase-type with ARGS_PEND. */
1020: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.53 kristaps 1021: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.89 schwarze 1022:
1023: if (ARGS_PUNCT == ac)
1024: break;
1.1 kristaps 1025:
1.53 kristaps 1026: if (ARGS_ERROR == ac)
1.1 kristaps 1027: return(0);
1.75 kristaps 1028:
1029: if (ARGS_EOLN == ac) {
1030: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1031: break;
1032: /*
1033: * This is necessary: if the last token on a
1034: * line is a `Ta' or tab, then we'll get
1035: * ARGS_EOLN, so we must be smart enough to
1036: * reopen our scope if the last parse was a
1037: * phrase or partial phrase.
1038: */
1039: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1040: return(0);
1041: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1042: return(0);
1043: body = m->last;
1.1 kristaps 1044: break;
1.75 kristaps 1045: }
1.45 kristaps 1046:
1.73 kristaps 1047: /*
1048: * Emit leading punctuation (i.e., punctuation before
1049: * the MDOC_HEAD) for non-phrase types.
1050: */
1.45 kristaps 1051:
1.59 kristaps 1052: if (NULL == head &&
1.71 kristaps 1053: ARGS_PEND != ac &&
1.59 kristaps 1054: ARGS_PHRASE != ac &&
1.57 kristaps 1055: ARGS_PPHRASE != ac &&
1.53 kristaps 1056: ARGS_QWORD != ac &&
1.67 schwarze 1057: DELIM_OPEN == mdoc_isdelim(p)) {
1.45 kristaps 1058: if ( ! mdoc_word_alloc(m, line, la, p))
1059: return(0);
1060: continue;
1061: }
1062:
1.74 kristaps 1063: /* Open a head if one hasn't been opened. */
1.45 kristaps 1064:
1.74 kristaps 1065: if (NULL == head) {
1.45 kristaps 1066: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1067: return(0);
1068: head = m->last;
1069: }
1070:
1.72 kristaps 1071: if (ARGS_PHRASE == ac ||
1072: ARGS_PEND == ac ||
1073: ARGS_PPHRASE == ac) {
1.73 kristaps 1074: /*
1.74 kristaps 1075: * If we haven't opened a body yet, rewind the
1076: * head; if we have, rewind that instead.
1077: */
1078:
1079: mtt = body ? MDOC_BODY : MDOC_HEAD;
1080: if ( ! rew_sub(mtt, m, tok, line, ppos))
1081: return(0);
1082:
1083: /* Then allocate our body context. */
1084:
1085: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1086: return(0);
1087: body = m->last;
1088:
1089: /*
1.73 kristaps 1090: * Process phrases: set whether we're in a
1091: * partial-phrase (this effects line handling)
1092: * then call down into the phrase parser.
1093: */
1.74 kristaps 1094:
1.65 kristaps 1095: if (ARGS_PPHRASE == ac)
1096: m->flags |= MDOC_PPHRASE;
1.71 kristaps 1097: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1098: m->flags |= MDOC_PPHRASE;
1099:
1.82 kristaps 1100: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1101: return(0);
1.71 kristaps 1102:
1.65 kristaps 1103: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1104: continue;
1105: }
1106:
1.54 kristaps 1107: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1108:
1109: if (MDOC_MAX == ntok) {
1.53 kristaps 1110: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1111: return(0);
1.53 kristaps 1112: continue;
1.45 kristaps 1113: }
1.53 kristaps 1114:
1.82 kristaps 1115: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.45 kristaps 1116: return(0);
1.53 kristaps 1117: break;
1.45 kristaps 1118: }
1.1 kristaps 1119:
1.45 kristaps 1120: if (NULL == head) {
1121: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1122: return(0);
1.45 kristaps 1123: head = m->last;
1.1 kristaps 1124: }
1125:
1.63 kristaps 1126: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1127: return(0);
1.19 kristaps 1128:
1.49 kristaps 1129: /* If we've already opened our body, exit now. */
1.45 kristaps 1130:
1.49 kristaps 1131: if (NULL != body)
1.77 kristaps 1132: goto out;
1.19 kristaps 1133:
1.47 kristaps 1134: /*
1.49 kristaps 1135: * If there is an open (i.e., unvalidated) sub-block requiring
1136: * explicit close-out, postpone switching the current block from
1137: * head to body until the rew_sub() call closing out that
1138: * sub-block.
1.47 kristaps 1139: */
1140: for (n = m->last; n && n != head; n = n->parent) {
1.49 kristaps 1141: if (MDOC_BLOCK == n->type &&
1142: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1143: ! (MDOC_VALID & n->flags)) {
1.47 kristaps 1144: n->pending = head;
1145: return(1);
1146: }
1147: }
1148:
1.45 kristaps 1149: /* Close out scopes to remain in a consistent state. */
1150:
1.32 kristaps 1151: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1152: return(0);
1.32 kristaps 1153: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1154: return(0);
1155:
1.77 kristaps 1156: out:
1157: if ( ! (MDOC_FREECOL & m->flags))
1158: return(1);
1159:
1160: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1161: return(0);
1162: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1163: return(0);
1164:
1165: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1166: return(1);
1167: }
1168:
1169:
1170: static int
1171: blk_part_imp(MACRO_PROT_ARGS)
1172: {
1.63 kristaps 1173: int la, nl;
1.53 kristaps 1174: enum mdoct ntok;
1.55 kristaps 1175: enum margserr ac;
1.1 kristaps 1176: char *p;
1.43 kristaps 1177: struct mdoc_node *blk; /* saved block context */
1178: struct mdoc_node *body; /* saved body context */
1179: struct mdoc_node *n;
1.1 kristaps 1180:
1.63 kristaps 1181: nl = MDOC_NEWLINE & m->flags;
1182:
1.43 kristaps 1183: /*
1184: * A macro that spans to the end of the line. This is generally
1185: * (but not necessarily) called as the first macro. The block
1186: * has a head as the immediate child, which is always empty,
1187: * followed by zero or more opening punctuation nodes, then the
1188: * body (which may be empty, depending on the macro), then zero
1189: * or more closing punctuation nodes.
1190: */
1.32 kristaps 1191:
1192: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1193: return(0);
1.43 kristaps 1194:
1.32 kristaps 1195: blk = m->last;
1.43 kristaps 1196:
1.32 kristaps 1197: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1198: return(0);
1.32 kristaps 1199: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1200: return(0);
1201:
1.43 kristaps 1202: /*
1203: * Open the body scope "on-demand", that is, after we've
1204: * processed all our the leading delimiters (open parenthesis,
1205: * etc.).
1206: */
1.1 kristaps 1207:
1.43 kristaps 1208: for (body = NULL; ; ) {
1.32 kristaps 1209: la = *pos;
1.53 kristaps 1210: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.43 kristaps 1211:
1.53 kristaps 1212: if (ARGS_ERROR == ac)
1.1 kristaps 1213: return(0);
1.53 kristaps 1214: if (ARGS_EOLN == ac)
1.43 kristaps 1215: break;
1.53 kristaps 1216: if (ARGS_PUNCT == ac)
1.1 kristaps 1217: break;
1218:
1.53 kristaps 1219: if (NULL == body && ARGS_QWORD != ac &&
1.67 schwarze 1220: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 kristaps 1221: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1222: return(0);
1223: continue;
1224: }
1225:
1.43 kristaps 1226: if (NULL == body) {
1227: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1228: return(0);
1229: body = m->last;
1230: }
1231:
1.54 kristaps 1232: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1233:
1234: if (MDOC_MAX == ntok) {
1.53 kristaps 1235: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1236: return(0);
1.53 kristaps 1237: continue;
1238: }
1.43 kristaps 1239:
1.82 kristaps 1240: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1241: return(0);
1.53 kristaps 1242: break;
1.1 kristaps 1243: }
1244:
1.43 kristaps 1245: /* Clean-ups to leave in a consistent state. */
1246:
1.44 kristaps 1247: if (NULL == body) {
1248: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1249: return(0);
1250: body = m->last;
1.64 kristaps 1251: }
1252:
1253: for (n = body->child; n && n->next; n = n->next)
1254: /* Do nothing. */ ;
1255:
1256: /*
1257: * End of sentence spacing: if the last node is a text node and
1258: * has a trailing period, then mark it as being end-of-sentence.
1259: */
1260:
1261: if (n && MDOC_TEXT == n->type && n->string)
1.93 schwarze 1262: if (mandoc_eos(n->string, strlen(n->string), 1))
1.64 kristaps 1263: n->flags |= MDOC_EOS;
1264:
1265: /* Up-propogate the end-of-space flag. */
1266:
1267: if (n && (MDOC_EOS & n->flags)) {
1268: body->flags |= MDOC_EOS;
1269: body->parent->flags |= MDOC_EOS;
1.44 kristaps 1270: }
1.43 kristaps 1271:
1.83 schwarze 1272: /*
1273: * If there is an open sub-block requiring explicit close-out,
1274: * postpone closing out the current block
1275: * until the rew_sub() call closing out the sub-block.
1276: */
1277: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1278: if (MDOC_BLOCK == n->type &&
1279: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1280: ! (MDOC_VALID & n->flags)) {
1.98 kristaps 1281: make_pending(n, tok, m, line, ppos);
1.83 schwarze 1282: if ( ! mdoc_endbody_alloc(m, line, ppos,
1283: tok, body, ENDBODY_NOSPACE))
1284: return(0);
1285: return(1);
1286: }
1287: }
1288:
1.32 kristaps 1289: /*
1290: * If we can't rewind to our body, then our scope has already
1291: * been closed by another macro (like `Oc' closing `Op'). This
1292: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1293: * crufty use of `Op' breakage.
1.1 kristaps 1294: */
1.88 schwarze 1295: if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPENEST,
1296: line, ppos, "%s broken", mdoc_macronames[tok]))
1.32 kristaps 1297: return(0);
1.43 kristaps 1298:
1.83 schwarze 1299: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.32 kristaps 1300: return(0);
1.1 kristaps 1301:
1.32 kristaps 1302: /* Standard appending of delimiters. */
1.1 kristaps 1303:
1.63 kristaps 1304: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1305: return(0);
1306:
1.32 kristaps 1307: /* Rewind scope, if applicable. */
1.1 kristaps 1308:
1.83 schwarze 1309: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1310: return(0);
1311:
1312: return(1);
1313: }
1314:
1315:
1316: static int
1317: blk_part_exp(MACRO_PROT_ARGS)
1318: {
1.60 kristaps 1319: int la, nl;
1.55 kristaps 1320: enum margserr ac;
1.43 kristaps 1321: struct mdoc_node *head; /* keep track of head */
1322: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1323: char *p;
1.53 kristaps 1324: enum mdoct ntok;
1.1 kristaps 1325:
1.60 kristaps 1326: nl = MDOC_NEWLINE & m->flags;
1327:
1.43 kristaps 1328: /*
1329: * The opening of an explicit macro having zero or more leading
1330: * punctuation nodes; a head with optional single element (the
1331: * case of `Eo'); and a body that may be empty.
1332: */
1.32 kristaps 1333:
1334: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1335: return(0);
1.32 kristaps 1336:
1.43 kristaps 1337: for (head = body = NULL; ; ) {
1.32 kristaps 1338: la = *pos;
1.53 kristaps 1339: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1340:
1.53 kristaps 1341: if (ARGS_ERROR == ac)
1.1 kristaps 1342: return(0);
1.53 kristaps 1343: if (ARGS_PUNCT == ac)
1.1 kristaps 1344: break;
1.53 kristaps 1345: if (ARGS_EOLN == ac)
1.1 kristaps 1346: break;
1.43 kristaps 1347:
1348: /* Flush out leading punctuation. */
1349:
1.53 kristaps 1350: if (NULL == head && ARGS_QWORD != ac &&
1.67 schwarze 1351: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1352: assert(NULL == body);
1353: if ( ! mdoc_word_alloc(m, line, la, p))
1354: return(0);
1355: continue;
1356: }
1357:
1358: if (NULL == head) {
1359: assert(NULL == body);
1360: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1361: return(0);
1.43 kristaps 1362: head = m->last;
1.1 kristaps 1363: }
1364:
1.43 kristaps 1365: /*
1366: * `Eo' gobbles any data into the head, but most other
1367: * macros just immediately close out and begin the body.
1368: */
1369:
1370: if (NULL == body) {
1371: assert(head);
1372: /* No check whether it's a macro! */
1373: if (MDOC_Eo == tok)
1374: if ( ! mdoc_word_alloc(m, line, la, p))
1375: return(0);
1376:
1.32 kristaps 1377: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1378: return(0);
1.32 kristaps 1379: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1380: return(0);
1.43 kristaps 1381: body = m->last;
1382:
1383: if (MDOC_Eo == tok)
1384: continue;
1.1 kristaps 1385: }
1.43 kristaps 1386:
1387: assert(NULL != head && NULL != body);
1388:
1.54 kristaps 1389: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1390:
1391: if (MDOC_MAX == ntok) {
1.53 kristaps 1392: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1393: return(0);
1.53 kristaps 1394: continue;
1.43 kristaps 1395: }
1396:
1.82 kristaps 1397: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1398: return(0);
1.53 kristaps 1399: break;
1.1 kristaps 1400: }
1401:
1.43 kristaps 1402: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1403:
1.43 kristaps 1404: if (NULL == head) {
1405: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1406: return(0);
1407: head = m->last;
1408: }
1409:
1410: if (NULL == body) {
1.32 kristaps 1411: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1412: return(0);
1.32 kristaps 1413: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1414: return(0);
1.43 kristaps 1415: body = m->last;
1.1 kristaps 1416: }
1417:
1.32 kristaps 1418: /* Standard appending of delimiters. */
1419:
1.60 kristaps 1420: if ( ! nl)
1.1 kristaps 1421: return(1);
1.32 kristaps 1422: return(append_delims(m, line, pos, buf));
1.1 kristaps 1423: }
1424:
1425:
1.61 kristaps 1426: /* ARGSUSED */
1.1 kristaps 1427: static int
1428: in_line_argn(MACRO_PROT_ARGS)
1429: {
1.60 kristaps 1430: int la, flushed, j, maxargs, nl;
1.55 kristaps 1431: enum margserr ac;
1.56 kristaps 1432: enum margverr av;
1.53 kristaps 1433: struct mdoc_arg *arg;
1434: char *p;
1435: enum mdoct ntok;
1.1 kristaps 1436:
1.60 kristaps 1437: nl = MDOC_NEWLINE & m->flags;
1438:
1.46 kristaps 1439: /*
1440: * A line macro that has a fixed number of arguments (maxargs).
1441: * Only open the scope once the first non-leading-punctuation is
1442: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1443: * keep it open until the maximum number of arguments are
1444: * exhausted.
1445: */
1.1 kristaps 1446:
1447: switch (tok) {
1448: case (MDOC_Ap):
1449: /* FALLTHROUGH */
1450: case (MDOC_No):
1451: /* FALLTHROUGH */
1452: case (MDOC_Ns):
1453: /* FALLTHROUGH */
1454: case (MDOC_Ux):
1455: maxargs = 0;
1456: break;
1.42 kristaps 1457: case (MDOC_Xr):
1458: maxargs = 2;
1459: break;
1.1 kristaps 1460: default:
1461: maxargs = 1;
1462: break;
1463: }
1464:
1.46 kristaps 1465: for (arg = NULL; ; ) {
1.32 kristaps 1466: la = *pos;
1.56 kristaps 1467: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1468:
1.56 kristaps 1469: if (ARGV_WORD == av) {
1.32 kristaps 1470: *pos = la;
1.1 kristaps 1471: break;
1472: }
1473:
1.56 kristaps 1474: if (ARGV_EOLN == av)
1.1 kristaps 1475: break;
1.56 kristaps 1476: if (ARGV_ARG == av)
1.1 kristaps 1477: continue;
1478:
1479: mdoc_argv_free(arg);
1480: return(0);
1481: }
1482:
1.46 kristaps 1483: for (flushed = j = 0; ; ) {
1.32 kristaps 1484: la = *pos;
1.53 kristaps 1485: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1486:
1.53 kristaps 1487: if (ARGS_ERROR == ac)
1.1 kristaps 1488: return(0);
1.53 kristaps 1489: if (ARGS_PUNCT == ac)
1.1 kristaps 1490: break;
1.53 kristaps 1491: if (ARGS_EOLN == ac)
1.1 kristaps 1492: break;
1493:
1.46 kristaps 1494: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1495: ARGS_QWORD != ac &&
1.67 schwarze 1496: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.46 kristaps 1497: if ( ! mdoc_word_alloc(m, line, la, p))
1498: return(0);
1499: continue;
1500: } else if (0 == j)
1501: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1502: return(0);
1503:
1504: if (j == maxargs && ! flushed) {
1505: if ( ! rew_elem(m, tok))
1506: return(0);
1507: flushed = 1;
1508: }
1509:
1.54 kristaps 1510: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1511:
1512: if (MDOC_MAX != ntok) {
1.32 kristaps 1513: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1514: return(0);
1515: flushed = 1;
1.82 kristaps 1516: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1517: return(0);
1.46 kristaps 1518: j++;
1.1 kristaps 1519: break;
1520: }
1521:
1522: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1523: ARGS_QWORD != ac &&
1.67 schwarze 1524: ! flushed &&
1525: DELIM_NONE != mdoc_isdelim(p)) {
1.32 kristaps 1526: if ( ! rew_elem(m, tok))
1.1 kristaps 1527: return(0);
1528: flushed = 1;
1529: }
1.42 kristaps 1530:
1531: /*
1532: * XXX: this is a hack to work around groff's ugliness
1533: * as regards `Xr' and extraneous arguments. It should
1534: * ideally be deprecated behaviour, but because this is
1535: * code is no here, it's unlikely to be removed.
1536: */
1.43 kristaps 1537:
1.46 kristaps 1538: #ifdef __OpenBSD__
1.42 kristaps 1539: if (MDOC_Xr == tok && j == maxargs) {
1.46 kristaps 1540: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.42 kristaps 1541: return(0);
1542: if ( ! rew_elem(m, MDOC_Ns))
1543: return(0);
1544: }
1.46 kristaps 1545: #endif
1.42 kristaps 1546:
1.32 kristaps 1547: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1548: return(0);
1.46 kristaps 1549: j++;
1.1 kristaps 1550: }
1551:
1.46 kristaps 1552: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1553: return(0);
1554:
1555: /* Close out in a consistent state. */
1.32 kristaps 1556:
1557: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1558: return(0);
1.60 kristaps 1559: if ( ! nl)
1.1 kristaps 1560: return(1);
1.32 kristaps 1561: return(append_delims(m, line, pos, buf));
1.1 kristaps 1562: }
1563:
1564:
1565: static int
1566: in_line_eoln(MACRO_PROT_ARGS)
1567: {
1.56 kristaps 1568: int la;
1.55 kristaps 1569: enum margserr ac;
1.56 kristaps 1570: enum margverr av;
1.53 kristaps 1571: struct mdoc_arg *arg;
1572: char *p;
1573: enum mdoct ntok;
1.1 kristaps 1574:
1575: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1576:
1.90 schwarze 1577: if (tok == MDOC_Pp)
1578: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1579:
1.32 kristaps 1580: /* Parse macro arguments. */
1.1 kristaps 1581:
1.32 kristaps 1582: for (arg = NULL; ; ) {
1.1 kristaps 1583: la = *pos;
1.56 kristaps 1584: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1585:
1.56 kristaps 1586: if (ARGV_WORD == av) {
1.1 kristaps 1587: *pos = la;
1588: break;
1589: }
1.56 kristaps 1590: if (ARGV_EOLN == av)
1.1 kristaps 1591: break;
1.56 kristaps 1592: if (ARGV_ARG == av)
1.1 kristaps 1593: continue;
1594:
1595: mdoc_argv_free(arg);
1596: return(0);
1597: }
1598:
1.32 kristaps 1599: /* Open element scope. */
1600:
1601: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1602: return(0);
1603:
1.32 kristaps 1604: /* Parse argument terms. */
1.1 kristaps 1605:
1606: for (;;) {
1607: la = *pos;
1.53 kristaps 1608: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1609:
1.53 kristaps 1610: if (ARGS_ERROR == ac)
1.1 kristaps 1611: return(0);
1.53 kristaps 1612: if (ARGS_EOLN == ac)
1.1 kristaps 1613: break;
1614:
1.53 kristaps 1615: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1616:
1.53 kristaps 1617: if (MDOC_MAX == ntok) {
1618: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1619: return(0);
1.53 kristaps 1620: continue;
1621: }
1.1 kristaps 1622:
1.53 kristaps 1623: if ( ! rew_elem(m, tok))
1.1 kristaps 1624: return(0);
1.82 kristaps 1625: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1626: }
1627:
1.32 kristaps 1628: /* Close out (no delimiters). */
1629:
1630: return(rew_elem(m, tok));
1.1 kristaps 1631: }
1632:
1633:
1634: /* ARGSUSED */
1635: static int
1.41 kristaps 1636: ctx_synopsis(MACRO_PROT_ARGS)
1637: {
1.60 kristaps 1638: int nl;
1639:
1640: nl = MDOC_NEWLINE & m->flags;
1.41 kristaps 1641:
1642: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.90 schwarze 1643: if ( ! (MDOC_SYNOPSIS & m->flags))
1.82 kristaps 1644: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1645:
1646: /* If we're a nested call, same place. */
1.60 kristaps 1647: if ( ! nl)
1.82 kristaps 1648: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1649:
1650: /*
1651: * XXX: this will open a block scope; however, if later we end
1652: * up formatting the block scope, then child nodes will inherit
1653: * the formatting. Be careful.
1654: */
1.88 schwarze 1655: if (MDOC_Nm == tok)
1656: return(blk_full(m, tok, line, ppos, pos, buf));
1657: assert(MDOC_Vt == tok);
1.82 kristaps 1658: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.41 kristaps 1659: }
1660:
1661:
1662: /* ARGSUSED */
1663: static int
1.1 kristaps 1664: obsolete(MACRO_PROT_ARGS)
1665: {
1666:
1.68 kristaps 1667: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1668: }
1669:
1670:
1.24 kristaps 1671: /*
1672: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1673: * They're unusual because they're basically free-form text until a
1674: * macro is encountered.
1675: */
1.1 kristaps 1676: static int
1.82 kristaps 1677: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1678: {
1.53 kristaps 1679: int la, pos;
1.75 kristaps 1680: enum margserr ac;
1.53 kristaps 1681: enum mdoct ntok;
1682: char *p;
1.1 kristaps 1683:
1.24 kristaps 1684: for (pos = ppos; ; ) {
1685: la = pos;
1.1 kristaps 1686:
1.75 kristaps 1687: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1688:
1.75 kristaps 1689: if (ARGS_ERROR == ac)
1.24 kristaps 1690: return(0);
1.75 kristaps 1691: if (ARGS_EOLN == ac)
1.24 kristaps 1692: break;
1.1 kristaps 1693:
1.75 kristaps 1694: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1695:
1.53 kristaps 1696: if (MDOC_MAX == ntok) {
1697: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1698: return(0);
1.53 kristaps 1699: continue;
1700: }
1.1 kristaps 1701:
1.82 kristaps 1702: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1703: return(0);
1.53 kristaps 1704: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1705: }
1706:
1707: return(1);
1708: }
1.24 kristaps 1709:
1710:
1.79 kristaps 1711: /* ARGSUSED */
1.75 kristaps 1712: static int
1713: phrase_ta(MACRO_PROT_ARGS)
1714: {
1715: int la;
1716: enum mdoct ntok;
1717: enum margserr ac;
1718: char *p;
1719:
1720: /*
1721: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1722: * it should simply error out with ARGSLOST.
1723: */
1724:
1725: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1726: return(0);
1727: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1728: return(0);
1729:
1730: for (;;) {
1731: la = *pos;
1732: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1733:
1734: if (ARGS_ERROR == ac)
1735: return(0);
1736: if (ARGS_EOLN == ac)
1737: break;
1738:
1739: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1740:
1741: if (MDOC_MAX == ntok) {
1742: if ( ! mdoc_word_alloc(m, line, la, p))
1743: return(0);
1744: continue;
1745: }
1746:
1.82 kristaps 1747: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.75 kristaps 1748: return(0);
1749: return(append_delims(m, line, pos, buf));
1750: }
1751:
1752: return(1);
1753: }
CVSweb