Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.61
1.61 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.60 2010/12/01 22:02:29 schwarze Exp $ */
1.1 kristaps 2: /*
1.54 schwarze 3: * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
4: * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.2 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
18: #include <assert.h>
19: #include <ctype.h>
20: #include <stdlib.h>
21: #include <stdio.h>
22: #include <string.h>
1.26 schwarze 23: #include <time.h>
1.1 kristaps 24:
1.44 schwarze 25: #include "mandoc.h"
1.1 kristaps 26: #include "libmdoc.h"
1.39 schwarze 27: #include "libmandoc.h"
1.1 kristaps 28:
1.48 schwarze 29: enum rew { /* see rew_dohalt() */
30: REWIND_NONE,
31: REWIND_THIS,
32: REWIND_MORE,
1.59 schwarze 33: REWIND_FORCE,
1.48 schwarze 34: REWIND_LATER,
1.54 schwarze 35: REWIND_ERROR
1.35 schwarze 36: };
1.1 kristaps 37:
1.36 schwarze 38: static int blk_full(MACRO_PROT_ARGS);
39: static int blk_exp_close(MACRO_PROT_ARGS);
40: static int blk_part_exp(MACRO_PROT_ARGS);
41: static int blk_part_imp(MACRO_PROT_ARGS);
42: static int ctx_synopsis(MACRO_PROT_ARGS);
43: static int in_line_eoln(MACRO_PROT_ARGS);
44: static int in_line_argn(MACRO_PROT_ARGS);
45: static int in_line(MACRO_PROT_ARGS);
46: static int obsolete(MACRO_PROT_ARGS);
1.46 schwarze 47: static int phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 48:
49: static int append_delims(struct mdoc *,
50: int, int *, char *);
51: static enum mdoct lookup(enum mdoct, const char *);
52: static enum mdoct lookup_raw(const char *);
1.49 schwarze 53: static int make_pending(struct mdoc_node *, enum mdoct,
1.47 schwarze 54: struct mdoc *, int, int);
1.46 schwarze 55: static int phrase(struct mdoc *, int, int, char *);
1.36 schwarze 56: static enum mdoct rew_alt(enum mdoct);
57: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
58: const struct mdoc_node *);
59: static int rew_elem(struct mdoc *, enum mdoct);
60: static int rew_last(struct mdoc *,
61: const struct mdoc_node *);
62: static int rew_sub(enum mdoc_type, struct mdoc *,
63: enum mdoct, int, int);
1.1 kristaps 64:
65: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.4 schwarze 66: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
1.1 kristaps 67: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
68: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
69: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
70: { blk_full, 0 }, /* Sh */
71: { blk_full, 0 }, /* Ss */
1.16 schwarze 72: { in_line_eoln, 0 }, /* Pp */
1.1 kristaps 73: { blk_part_imp, MDOC_PARSED }, /* D1 */
74: { blk_part_imp, MDOC_PARSED }, /* Dl */
75: { blk_full, MDOC_EXPLICIT }, /* Bd */
76: { blk_exp_close, MDOC_EXPLICIT }, /* Ed */
77: { blk_full, MDOC_EXPLICIT }, /* Bl */
78: { blk_exp_close, MDOC_EXPLICIT }, /* El */
79: { blk_full, MDOC_PARSED }, /* It */
80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.3 schwarze 81: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.15 schwarze 83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
1.1 kristaps 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
88: { in_line_eoln, 0 }, /* Ex */
89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
90: { in_line_eoln, 0 }, /* Fd */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
1.3 schwarze 93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.11 schwarze 95: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.12 schwarze 97: { blk_full, 0 }, /* Nd */
1.51 schwarze 98: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 99: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
100: { obsolete, 0 }, /* Ot */
101: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
102: { in_line_eoln, 0 }, /* Rv */
103: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
104: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.28 schwarze 105: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
106: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.1 kristaps 107: { in_line_eoln, 0 }, /* %A */
108: { in_line_eoln, 0 }, /* %B */
109: { in_line_eoln, 0 }, /* %D */
110: { in_line_eoln, 0 }, /* %I */
111: { in_line_eoln, 0 }, /* %J */
112: { in_line_eoln, 0 }, /* %N */
113: { in_line_eoln, 0 }, /* %O */
114: { in_line_eoln, 0 }, /* %P */
115: { in_line_eoln, 0 }, /* %R */
116: { in_line_eoln, 0 }, /* %T */
117: { in_line_eoln, 0 }, /* %V */
118: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
119: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
120: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
121: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
122: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
123: { blk_full, MDOC_EXPLICIT }, /* Bf */
124: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
125: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
126: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
127: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
128: { in_line_eoln, 0 }, /* Db */
129: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
130: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
131: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
132: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
133: { blk_exp_close, MDOC_EXPLICIT }, /* Ef */
134: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
135: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
136: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 137: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.57 schwarze 138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* No */
139: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Ns */
1.1 kristaps 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
142: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.35 schwarze 143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.1 kristaps 144: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
145: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
146: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
147: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
148: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
149: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
150: { blk_exp_close, MDOC_EXPLICIT }, /* Re */
151: { blk_full, MDOC_EXPLICIT }, /* Rs */
152: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
153: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
154: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
155: { in_line_eoln, 0 }, /* Sm */
156: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
157: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
158: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
159: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
160: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
161: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
162: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
163: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
164: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
165: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
166: { blk_full, MDOC_EXPLICIT }, /* Bk */
167: { blk_exp_close, MDOC_EXPLICIT }, /* Ek */
168: { in_line_eoln, 0 }, /* Bt */
169: { in_line_eoln, 0 }, /* Hf */
170: { obsolete, 0 }, /* Fr */
171: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 172: { in_line, 0 }, /* Lb */
1.16 schwarze 173: { in_line_eoln, 0 }, /* Lp */
1.3 schwarze 174: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
175: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
1.1 kristaps 176: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
177: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
178: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
179: { in_line_eoln, 0 }, /* %C */
180: { obsolete, 0 }, /* Es */
181: { obsolete, 0 }, /* En */
182: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
183: { in_line_eoln, 0 }, /* %Q */
1.13 schwarze 184: { in_line_eoln, 0 }, /* br */
185: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 186: { in_line_eoln, 0 }, /* %U */
1.46 schwarze 187: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
1.58 schwarze 188: { blk_part_exp, MDOC_EXPLICIT }, /* TS */
189: { blk_exp_close, MDOC_EXPLICIT }, /* TE */
1.1 kristaps 190: };
191:
192: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
193:
194:
195: /*
196: * This is called at the end of parsing. It must traverse up the tree,
197: * closing out open [implicit] scopes. Obviously, open explicit scopes
198: * are errors.
199: */
200: int
1.22 schwarze 201: mdoc_macroend(struct mdoc *m)
1.1 kristaps 202: {
203: struct mdoc_node *n;
204:
205: /* Scan for open explicit scopes. */
206:
1.22 schwarze 207: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 208:
1.56 schwarze 209: for ( ; n; n = n->parent)
210: if (MDOC_BLOCK == n->type &&
211: MDOC_EXPLICIT & mdoc_macros[n->tok].flags)
212: mdoc_nmsg(m, n, MANDOCERR_SCOPEEXIT);
1.1 kristaps 213:
1.22 schwarze 214: /* Rewind to the first. */
215:
216: return(rew_last(m, m->first));
1.1 kristaps 217: }
218:
1.22 schwarze 219:
220: /*
221: * Look up a macro from within a subsequent context.
222: */
1.36 schwarze 223: static enum mdoct
224: lookup(enum mdoct from, const char *p)
1.21 schwarze 225: {
1.24 schwarze 226: /* FIXME: make -diag lists be un-PARSED. */
1.21 schwarze 227:
228: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
229: return(MDOC_MAX);
1.24 schwarze 230: return(lookup_raw(p));
1.21 schwarze 231: }
232:
233:
1.22 schwarze 234: /*
235: * Lookup a macro following the initial line macro.
236: */
1.36 schwarze 237: static enum mdoct
1.24 schwarze 238: lookup_raw(const char *p)
1.1 kristaps 239: {
1.36 schwarze 240: enum mdoct res;
1.1 kristaps 241:
1.24 schwarze 242: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.21 schwarze 243: return(MDOC_MAX);
244: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 245: return(res);
246: return(MDOC_MAX);
247: }
248:
249:
250: static int
1.22 schwarze 251: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 252: {
1.61 ! schwarze 253: struct mdoc_node *n;
1.1 kristaps 254:
255: assert(to);
256: mdoc->next = MDOC_NEXT_SIBLING;
257:
258: /* LINTED */
259: while (mdoc->last != to) {
260: if ( ! mdoc_valid_post(mdoc))
261: return(0);
1.61 ! schwarze 262: n = mdoc->last;
1.1 kristaps 263: mdoc->last = mdoc->last->parent;
264: assert(mdoc->last);
1.61 ! schwarze 265: mdoc->last->last = n;
1.1 kristaps 266: }
267:
1.60 schwarze 268: return(mdoc_valid_post(mdoc));
1.1 kristaps 269: }
270:
271:
1.22 schwarze 272: /*
1.48 schwarze 273: * For a block closing macro, return the corresponding opening one.
274: * Otherwise, return the macro itself.
1.22 schwarze 275: */
1.34 schwarze 276: static enum mdoct
277: rew_alt(enum mdoct tok)
1.1 kristaps 278: {
279: switch (tok) {
280: case (MDOC_Ac):
281: return(MDOC_Ao);
282: case (MDOC_Bc):
283: return(MDOC_Bo);
284: case (MDOC_Brc):
285: return(MDOC_Bro);
286: case (MDOC_Dc):
287: return(MDOC_Do);
288: case (MDOC_Ec):
289: return(MDOC_Eo);
290: case (MDOC_Ed):
291: return(MDOC_Bd);
292: case (MDOC_Ef):
293: return(MDOC_Bf);
294: case (MDOC_Ek):
295: return(MDOC_Bk);
296: case (MDOC_El):
297: return(MDOC_Bl);
298: case (MDOC_Fc):
299: return(MDOC_Fo);
300: case (MDOC_Oc):
301: return(MDOC_Oo);
302: case (MDOC_Pc):
303: return(MDOC_Po);
304: case (MDOC_Qc):
305: return(MDOC_Qo);
306: case (MDOC_Re):
307: return(MDOC_Rs);
308: case (MDOC_Sc):
309: return(MDOC_So);
310: case (MDOC_Xc):
311: return(MDOC_Xo);
1.58 schwarze 312: case (MDOC_TE):
313: return(MDOC_TS);
1.1 kristaps 314: default:
1.48 schwarze 315: return(tok);
1.1 kristaps 316: }
317: /* NOTREACHED */
318: }
319:
320:
1.48 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.
1.59 schwarze 327: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.48 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: */
1.35 schwarze 331: static enum rew
1.34 schwarze 332: rew_dohalt(enum mdoct tok, enum mdoc_type type,
333: const struct mdoc_node *p)
1.1 kristaps 334: {
335:
1.50 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)
1.48 schwarze 343: return(MDOC_BLOCK == type &&
344: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
345: REWIND_ERROR : REWIND_NONE);
1.50 schwarze 346:
347: /*
348: * When starting to rewind, skip plain text
349: * and nodes that have already been rewound.
350: */
1.48 schwarze 351: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
352: return(REWIND_MORE);
353:
1.50 schwarze 354: /*
355: * The easiest case: Found a matching token.
356: * This applies to both blocks and elements.
357: */
1.48 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:
1.50 schwarze 363: /*
364: * While elements do require rewinding for themselves,
365: * they never affect rewinding of other nodes.
366: */
1.48 schwarze 367: if (MDOC_ELEM == p->type)
368: return(REWIND_MORE);
1.1 kristaps 369:
1.50 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) {
1.48 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)
1.48 schwarze 381: return(REWIND_NONE);
1.1 kristaps 382: break;
1.48 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;
1.51 schwarze 393: case (MDOC_Nm):
394: return(REWIND_NONE);
1.12 schwarze 395: case (MDOC_Nd):
396: /* FALLTHROUGH */
1.1 kristaps 397: case (MDOC_Ss):
398: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.48 schwarze 399: return(REWIND_NONE);
1.1 kristaps 400: /* FALLTHROUGH */
401: case (MDOC_Sh):
1.48 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:
1.50 schwarze 410: /*
411: * Default block rewinding rules.
1.51 schwarze 412: * In particular, always skip block end markers,
413: * and let all blocks rewind Nm children.
1.50 schwarze 414: */
1.54 schwarze 415: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
1.51 schwarze 416: (MDOC_BLOCK == p->type &&
1.50 schwarze 417: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
418: return(REWIND_MORE);
419:
420: /*
1.59 schwarze 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.
1.50 schwarze 425: */
1.59 schwarze 426: return (&blk_full == mdoc_macros[tok].fp ?
427: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 428: }
429:
430:
431: static int
1.34 schwarze 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:
1.47 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:
1.48 schwarze 477: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.47 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;
1.51 schwarze 509: mdoc_vmsg(m, MANDOCERR_SCOPENEST, line, ppos,
510: "%s breaks %s", mdoc_macronames[tok],
511: mdoc_macronames[broken->tok]);
1.47 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:
1.48 schwarze 522:
1.1 kristaps 523: static int
1.22 schwarze 524: rew_sub(enum mdoc_type t, struct mdoc *m,
1.34 schwarze 525: enum mdoct tok, int line, int ppos)
1.1 kristaps 526: {
527: struct mdoc_node *n;
528:
1.48 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;
1.59 schwarze 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 */
1.48 schwarze 541: case (REWIND_MORE):
542: n = n->parent;
543: continue;
544: case (REWIND_LATER):
1.59 schwarze 545: if (make_pending(n, tok, m, line, ppos) ||
546: MDOC_BLOCK != t)
547: return(1);
548: /* FALLTHROUGH */
1.48 schwarze 549: case (REWIND_ERROR):
1.59 schwarze 550: mdoc_pmsg(m, line, ppos, MANDOCERR_NOSCOPE);
551: return(1);
1.22 schwarze 552: }
1.48 schwarze 553: break;
1.1 kristaps 554: }
555:
556: assert(n);
1.29 schwarze 557: if ( ! rew_last(m, n))
558: return(0);
559:
560: /*
1.47 schwarze 561: * The current block extends an enclosing block.
562: * Now that the current block ends, close the enclosing block, too.
1.29 schwarze 563: */
1.47 schwarze 564: while (NULL != (n = n->pending)) {
1.29 schwarze 565: if ( ! rew_last(m, n))
566: return(0);
1.47 schwarze 567: if (MDOC_HEAD == n->type &&
568: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.29 schwarze 569: return(0);
570: }
1.54 schwarze 571:
1.29 schwarze 572: return(1);
1.1 kristaps 573: }
574:
575:
576: static int
1.42 schwarze 577: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 578: {
1.42 schwarze 579: int la;
1.36 schwarze 580: enum margserr ac;
1.1 kristaps 581: char *p;
582:
1.42 schwarze 583: if ('\0' == buf[*pos])
1.1 kristaps 584: return(1);
585:
586: for (;;) {
1.42 schwarze 587: la = *pos;
588: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 589:
1.36 schwarze 590: if (ARGS_ERROR == ac)
1.1 kristaps 591: return(0);
1.36 schwarze 592: else if (ARGS_EOLN == ac)
1.1 kristaps 593: break;
1.42 schwarze 594:
1.40 schwarze 595: assert(DELIM_NONE != mdoc_isdelim(p));
1.42 schwarze 596: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 597: return(0);
1.43 schwarze 598:
1.42 schwarze 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: */
1.55 schwarze 610: if (mandoc_eos(p, strlen(p), 0))
1.42 schwarze 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: {
1.47 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:
1.37 schwarze 628: int j, lastarg, maxargs, flushed, nl;
1.36 schwarze 629: enum margserr ac;
1.47 schwarze 630: enum mdoct atok, ntok;
1.1 kristaps 631: char *p;
632:
1.37 schwarze 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:
1.47 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) {
1.54 schwarze 656: if (ENDBODY_NOT == n->end)
1.47 schwarze 657: body = n;
658: continue;
659: }
660:
1.51 schwarze 661: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.47 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: */
1.59 schwarze 679: make_pending(later, tok, m, line, ppos);
1.47 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;
1.60 schwarze 699: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags)
1.47 schwarze 700: later = n;
701: }
702:
1.1 kristaps 703: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.44 schwarze 704: /* FIXME: do this in validate */
1.14 schwarze 705: if (buf[*pos])
1.44 schwarze 706: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 707: return(0);
1.14 schwarze 708:
1.22 schwarze 709: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.14 schwarze 710: return(0);
1.22 schwarze 711: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 712: }
713:
1.22 schwarze 714: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 715: return(0);
716:
1.47 schwarze 717: if (NULL == later && maxargs > 0)
1.22 schwarze 718: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 719: return(0);
720:
1.20 schwarze 721: for (flushed = j = 0; ; j++) {
1.1 kristaps 722: lastarg = *pos;
723:
724: if (j == maxargs && ! flushed) {
1.22 schwarze 725: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 726: return(0);
727: flushed = 1;
728: }
729:
1.36 schwarze 730: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 731:
1.36 schwarze 732: if (ARGS_ERROR == ac)
1.1 kristaps 733: return(0);
1.36 schwarze 734: if (ARGS_PUNCT == ac)
1.1 kristaps 735: break;
1.36 schwarze 736: if (ARGS_EOLN == ac)
1.1 kristaps 737: break;
738:
1.36 schwarze 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);
1.36 schwarze 744: continue;
745: }
1.1 kristaps 746:
1.36 schwarze 747: if ( ! flushed) {
748: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
749: return(0);
750: flushed = 1;
751: }
752: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 753: return(0);
1.36 schwarze 754: break;
1.1 kristaps 755: }
756:
1.22 schwarze 757: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 758: return(0);
759:
1.37 schwarze 760: if ( ! nl)
1.1 kristaps 761: return(1);
1.22 schwarze 762: return(append_delims(m, line, pos, buf));
1.1 kristaps 763: }
764:
765:
766: static int
767: in_line(MACRO_PROT_ARGS)
768: {
1.45 schwarze 769: int la, scope, cnt, nc, nl;
1.36 schwarze 770: enum margverr av;
771: enum mdoct ntok;
772: enum margserr ac;
1.40 schwarze 773: enum mdelim d;
1.36 schwarze 774: struct mdoc_arg *arg;
775: char *p;
1.1 kristaps 776:
1.37 schwarze 777: nl = MDOC_NEWLINE & m->flags;
778:
1.1 kristaps 779: /*
780: * Whether we allow ignored elements (those without content,
781: * usually because of reserved words) to squeak by.
782: */
1.32 schwarze 783:
1.1 kristaps 784: switch (tok) {
1.19 schwarze 785: case (MDOC_An):
786: /* FALLTHROUGH */
787: case (MDOC_Ar):
1.1 kristaps 788: /* FALLTHROUGH */
789: case (MDOC_Fl):
790: /* FALLTHROUGH */
1.60 schwarze 791: case (MDOC_Mt):
1.18 schwarze 792: /* FALLTHROUGH */
1.19 schwarze 793: case (MDOC_Nm):
794: /* FALLTHROUGH */
1.18 schwarze 795: case (MDOC_Pa):
1.1 kristaps 796: nc = 1;
797: break;
798: default:
799: nc = 0;
800: break;
801: }
802:
1.20 schwarze 803: for (arg = NULL;; ) {
1.1 kristaps 804: la = *pos;
1.36 schwarze 805: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 806:
1.36 schwarze 807: if (ARGV_WORD == av) {
1.1 kristaps 808: *pos = la;
809: break;
810: }
1.36 schwarze 811: if (ARGV_EOLN == av)
1.1 kristaps 812: break;
1.36 schwarze 813: if (ARGV_ARG == av)
1.1 kristaps 814: continue;
815:
816: mdoc_argv_free(arg);
817: return(0);
818: }
819:
1.45 schwarze 820: for (cnt = scope = 0;; ) {
1.1 kristaps 821: la = *pos;
1.36 schwarze 822: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 823:
1.36 schwarze 824: if (ARGS_ERROR == ac)
1.1 kristaps 825: return(0);
1.36 schwarze 826: if (ARGS_EOLN == ac)
1.1 kristaps 827: break;
1.36 schwarze 828: if (ARGS_PUNCT == ac)
1.1 kristaps 829: break;
830:
1.36 schwarze 831: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 832:
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: */
839:
1.36 schwarze 840: if (MDOC_MAX != ntok) {
1.45 schwarze 841: if (scope && ! rew_elem(m, tok))
1.1 kristaps 842: return(0);
843: if (nc && 0 == cnt) {
1.22 schwarze 844: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 845: return(0);
1.22 schwarze 846: if ( ! rew_last(m, m->last))
1.3 schwarze 847: return(0);
1.1 kristaps 848: } else if ( ! nc && 0 == cnt) {
849: mdoc_argv_free(arg);
1.44 schwarze 850: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.1 kristaps 851: return(0);
852: }
1.36 schwarze 853: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 854: return(0);
1.37 schwarze 855: if ( ! nl)
1.1 kristaps 856: return(1);
1.22 schwarze 857: return(append_delims(m, line, pos, buf));
1.21 schwarze 858: }
1.1 kristaps 859:
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: */
865:
1.40 schwarze 866: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 867:
1.45 schwarze 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);
1.45 schwarze 892: scope = 0;
893: } else if ( ! scope) {
1.22 schwarze 894: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 895: return(0);
1.45 schwarze 896: scope = 1;
1.1 kristaps 897: }
898:
1.40 schwarze 899: if (DELIM_NONE == d)
1.1 kristaps 900: cnt++;
1.22 schwarze 901: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 902: return(0);
1.27 schwarze 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: */
1.45 schwarze 909: if (scope && MDOC_Fl == tok) {
1.27 schwarze 910: if ( ! rew_elem(m, tok))
911: return(0);
1.45 schwarze 912: scope = 0;
1.27 schwarze 913: }
1.1 kristaps 914: }
915:
1.45 schwarze 916: if (scope && ! rew_elem(m, tok))
1.1 kristaps 917: return(0);
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: */
1.32 schwarze 924:
1.1 kristaps 925: if (nc && 0 == cnt) {
1.22 schwarze 926: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 927: return(0);
1.22 schwarze 928: if ( ! rew_last(m, m->last))
1.3 schwarze 929: return(0);
930: } else if ( ! nc && 0 == cnt) {
1.1 kristaps 931: mdoc_argv_free(arg);
1.44 schwarze 932: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.1 kristaps 933: return(0);
934: }
935:
1.37 schwarze 936: if ( ! nl)
1.1 kristaps 937: return(1);
1.22 schwarze 938: return(append_delims(m, line, pos, buf));
1.1 kristaps 939: }
940:
941:
942: static int
943: blk_full(MACRO_PROT_ARGS)
944: {
1.43 schwarze 945: int la, nl;
1.1 kristaps 946: struct mdoc_arg *arg;
1.32 schwarze 947: struct mdoc_node *head; /* save of head macro */
1.34 schwarze 948: struct mdoc_node *body; /* save of body macro */
1.32 schwarze 949: struct mdoc_node *n;
1.46 schwarze 950: enum mdoc_type mtt;
1.36 schwarze 951: enum mdoct ntok;
1.37 schwarze 952: enum margserr ac, lac;
1.36 schwarze 953: enum margverr av;
1.1 kristaps 954: char *p;
955:
1.43 schwarze 956: nl = MDOC_NEWLINE & m->flags;
957:
1.32 schwarze 958: /* Close out prior implicit scope. */
1.12 schwarze 959:
1.1 kristaps 960: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.22 schwarze 961: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 962: return(0);
1.22 schwarze 963: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 964: return(0);
965: }
966:
1.32 schwarze 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;; ) {
1.32 schwarze 977: la = *pos;
1.36 schwarze 978: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 979:
1.36 schwarze 980: if (ARGV_WORD == av) {
1.32 schwarze 981: *pos = la;
1.1 kristaps 982: break;
983: }
984:
1.36 schwarze 985: if (ARGV_EOLN == av)
1.1 kristaps 986: break;
1.36 schwarze 987: if (ARGV_ARG == av)
1.1 kristaps 988: continue;
989:
990: mdoc_argv_free(arg);
991: return(0);
992: }
993:
1.22 schwarze 994: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 995: return(0);
996:
1.34 schwarze 997: head = body = NULL;
1.1 kristaps 998:
1.32 schwarze 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: */
1.12 schwarze 1003:
1.32 schwarze 1004: if (MDOC_Nd == tok) {
1005: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1006: return(0);
1007: head = m->last;
1.22 schwarze 1008: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.12 schwarze 1009: return(0);
1.22 schwarze 1010: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.12 schwarze 1011: return(0);
1.34 schwarze 1012: body = m->last;
1.12 schwarze 1013: }
1014:
1.37 schwarze 1015: ac = ARGS_ERROR;
1016:
1.41 schwarze 1017: for ( ; ; ) {
1.32 schwarze 1018: la = *pos;
1.46 schwarze 1019: /* Initialise last-phrase-type with ARGS_PEND. */
1020: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.36 schwarze 1021: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.52 schwarze 1022:
1023: if (ARGS_PUNCT == ac)
1024: break;
1.1 kristaps 1025:
1.36 schwarze 1026: if (ARGS_ERROR == ac)
1.1 kristaps 1027: return(0);
1.46 schwarze 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;
1.41 schwarze 1045: }
1046:
1.46 schwarze 1047: /*
1048: * Emit leading punctuation (i.e., punctuation before
1049: * the MDOC_HEAD) for non-phrase types.
1050: */
1.32 schwarze 1051:
1.37 schwarze 1052: if (NULL == head &&
1.46 schwarze 1053: ARGS_PEND != ac &&
1.37 schwarze 1054: ARGS_PHRASE != ac &&
1.36 schwarze 1055: ARGS_PPHRASE != ac &&
1056: ARGS_QWORD != ac &&
1.40 schwarze 1057: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1058: if ( ! mdoc_word_alloc(m, line, la, p))
1059: return(0);
1060: continue;
1061: }
1062:
1.46 schwarze 1063: /* Open a head if one hasn't been opened. */
1.32 schwarze 1064:
1.46 schwarze 1065: if (NULL == head) {
1.32 schwarze 1066: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1067: return(0);
1.29 schwarze 1068: head = m->last;
1.32 schwarze 1069: }
1070:
1.46 schwarze 1071: if (ARGS_PHRASE == ac ||
1072: ARGS_PEND == ac ||
1073: ARGS_PPHRASE == ac) {
1074: /*
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: /*
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: */
1094:
1.41 schwarze 1095: if (ARGS_PPHRASE == ac)
1096: m->flags |= MDOC_PPHRASE;
1.46 schwarze 1097: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1098: m->flags |= MDOC_PPHRASE;
1099:
1100: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1101: return(0);
1.46 schwarze 1102:
1.41 schwarze 1103: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1104: continue;
1105: }
1106:
1.36 schwarze 1107: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1108:
1109: if (MDOC_MAX == ntok) {
1110: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1111: return(0);
1.36 schwarze 1112: continue;
1.32 schwarze 1113: }
1.36 schwarze 1114:
1115: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1116: return(0);
1.36 schwarze 1117: break;
1.32 schwarze 1118: }
1.1 kristaps 1119:
1.32 schwarze 1120: if (NULL == head) {
1121: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1122: return(0);
1.32 schwarze 1123: head = m->last;
1.1 kristaps 1124: }
1125:
1.43 schwarze 1126: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1127: return(0);
1.12 schwarze 1128:
1.34 schwarze 1129: /* If we've already opened our body, exit now. */
1.32 schwarze 1130:
1.34 schwarze 1131: if (NULL != body)
1.46 schwarze 1132: goto out;
1.29 schwarze 1133:
1134: /*
1.34 schwarze 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.
1.29 schwarze 1139: */
1140: for (n = m->last; n && n != head; n = n->parent) {
1.34 schwarze 1141: if (MDOC_BLOCK == n->type &&
1142: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1143: ! (MDOC_VALID & n->flags)) {
1.29 schwarze 1144: n->pending = head;
1145: return(1);
1146: }
1147: }
1.54 schwarze 1148:
1.32 schwarze 1149: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1150:
1.22 schwarze 1151: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1152: return(0);
1.22 schwarze 1153: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1154: return(0);
1155:
1.46 schwarze 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: {
1.43 schwarze 1173: int la, nl;
1.36 schwarze 1174: enum mdoct ntok;
1175: enum margserr ac;
1.1 kristaps 1176: char *p;
1.32 schwarze 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:
1.43 schwarze 1181: nl = MDOC_NEWLINE & m->flags;
1182:
1.32 schwarze 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: */
1.22 schwarze 1191:
1192: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1193: return(0);
1.32 schwarze 1194:
1.22 schwarze 1195: blk = m->last;
1.32 schwarze 1196:
1.22 schwarze 1197: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1198: return(0);
1.22 schwarze 1199: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1200: return(0);
1201:
1.32 schwarze 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:
1.32 schwarze 1208: for (body = NULL; ; ) {
1.22 schwarze 1209: la = *pos;
1.36 schwarze 1210: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.32 schwarze 1211:
1.36 schwarze 1212: if (ARGS_ERROR == ac)
1.1 kristaps 1213: return(0);
1.36 schwarze 1214: if (ARGS_EOLN == ac)
1.32 schwarze 1215: break;
1.36 schwarze 1216: if (ARGS_PUNCT == ac)
1.1 kristaps 1217: break;
1218:
1.36 schwarze 1219: if (NULL == body && ARGS_QWORD != ac &&
1.40 schwarze 1220: DELIM_OPEN == mdoc_isdelim(p)) {
1.22 schwarze 1221: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1222: return(0);
1223: continue;
1224: }
1225:
1.32 schwarze 1226: if (NULL == body) {
1227: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1228: return(0);
1229: body = m->last;
1230: }
1231:
1.36 schwarze 1232: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1233:
1234: if (MDOC_MAX == ntok) {
1235: if ( ! mdoc_word_alloc(m, line, la, p))
1.32 schwarze 1236: return(0);
1.36 schwarze 1237: continue;
1238: }
1.32 schwarze 1239:
1.36 schwarze 1240: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1241: return(0);
1.36 schwarze 1242: break;
1.32 schwarze 1243: }
1244:
1245: /* Clean-ups to leave in a consistent state. */
1246:
1247: if (NULL == body) {
1248: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1249: return(0);
1.32 schwarze 1250: body = m->last;
1.39 schwarze 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)
1.55 schwarze 1262: if (mandoc_eos(n->string, strlen(n->string), 1))
1.39 schwarze 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;
1.1 kristaps 1270: }
1271:
1.47 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)) {
1.59 schwarze 1281: make_pending(n, tok, m, line, ppos);
1.47 schwarze 1282: if ( ! mdoc_endbody_alloc(m, line, ppos,
1283: tok, body, ENDBODY_NOSPACE))
1284: return(0);
1285: return(1);
1286: }
1287: }
1288:
1.22 schwarze 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
1.34 schwarze 1293: * crufty use of `Op' breakage.
1.1 kristaps 1294: */
1.51 schwarze 1295: if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPENEST,
1296: line, ppos, "%s broken", mdoc_macronames[tok]))
1.22 schwarze 1297: return(0);
1.32 schwarze 1298:
1.47 schwarze 1299: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 schwarze 1300: return(0);
1.1 kristaps 1301:
1.22 schwarze 1302: /* Standard appending of delimiters. */
1.1 kristaps 1303:
1.43 schwarze 1304: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1305: return(0);
1306:
1.22 schwarze 1307: /* Rewind scope, if applicable. */
1.1 kristaps 1308:
1.47 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: {
1.37 schwarze 1319: int la, nl;
1.36 schwarze 1320: enum margserr ac;
1.32 schwarze 1321: struct mdoc_node *head; /* keep track of head */
1322: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1323: char *p;
1.36 schwarze 1324: enum mdoct ntok;
1.1 kristaps 1325:
1.37 schwarze 1326: nl = MDOC_NEWLINE & m->flags;
1327:
1.32 schwarze 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: */
1.22 schwarze 1333:
1334: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1335: return(0);
1.22 schwarze 1336:
1.32 schwarze 1337: for (head = body = NULL; ; ) {
1.22 schwarze 1338: la = *pos;
1.36 schwarze 1339: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1340:
1.36 schwarze 1341: if (ARGS_ERROR == ac)
1.1 kristaps 1342: return(0);
1.36 schwarze 1343: if (ARGS_PUNCT == ac)
1.1 kristaps 1344: break;
1.36 schwarze 1345: if (ARGS_EOLN == ac)
1.1 kristaps 1346: break;
1347:
1.32 schwarze 1348: /* Flush out leading punctuation. */
1349:
1.36 schwarze 1350: if (NULL == head && ARGS_QWORD != ac &&
1.40 schwarze 1351: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 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);
1.32 schwarze 1362: head = m->last;
1.1 kristaps 1363: }
1364:
1.32 schwarze 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:
1.22 schwarze 1377: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1378: return(0);
1.22 schwarze 1379: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1380: return(0);
1.32 schwarze 1381: body = m->last;
1382:
1383: if (MDOC_Eo == tok)
1384: continue;
1385: }
1386:
1387: assert(NULL != head && NULL != body);
1388:
1.36 schwarze 1389: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1390:
1391: if (MDOC_MAX == ntok) {
1392: if ( ! mdoc_word_alloc(m, line, la, p))
1.32 schwarze 1393: return(0);
1.36 schwarze 1394: continue;
1.1 kristaps 1395: }
1.32 schwarze 1396:
1.36 schwarze 1397: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1398: return(0);
1.36 schwarze 1399: break;
1.1 kristaps 1400: }
1401:
1.32 schwarze 1402: /* Clean-up to leave in a consistent state. */
1403:
1404: if (NULL == head) {
1405: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1406: return(0);
1407: head = m->last;
1408: }
1.22 schwarze 1409:
1.32 schwarze 1410: if (NULL == body) {
1.22 schwarze 1411: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1412: return(0);
1.22 schwarze 1413: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1414: return(0);
1.32 schwarze 1415: body = m->last;
1.1 kristaps 1416: }
1417:
1.22 schwarze 1418: /* Standard appending of delimiters. */
1419:
1.37 schwarze 1420: if ( ! nl)
1.1 kristaps 1421: return(1);
1.22 schwarze 1422: return(append_delims(m, line, pos, buf));
1.1 kristaps 1423: }
1424:
1425:
1.37 schwarze 1426: /* ARGSUSED */
1.1 kristaps 1427: static int
1428: in_line_argn(MACRO_PROT_ARGS)
1429: {
1.37 schwarze 1430: int la, flushed, j, maxargs, nl;
1.36 schwarze 1431: enum margserr ac;
1432: enum margverr av;
1433: struct mdoc_arg *arg;
1434: char *p;
1435: enum mdoct ntok;
1.1 kristaps 1436:
1.37 schwarze 1437: nl = MDOC_NEWLINE & m->flags;
1438:
1.32 schwarze 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;
1.28 schwarze 1457: case (MDOC_Xr):
1458: maxargs = 2;
1459: break;
1.1 kristaps 1460: default:
1461: maxargs = 1;
1462: break;
1463: }
1464:
1.32 schwarze 1465: for (arg = NULL; ; ) {
1.22 schwarze 1466: la = *pos;
1.36 schwarze 1467: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1468:
1.36 schwarze 1469: if (ARGV_WORD == av) {
1.22 schwarze 1470: *pos = la;
1.1 kristaps 1471: break;
1472: }
1473:
1.36 schwarze 1474: if (ARGV_EOLN == av)
1.1 kristaps 1475: break;
1.36 schwarze 1476: if (ARGV_ARG == av)
1.1 kristaps 1477: continue;
1478:
1479: mdoc_argv_free(arg);
1480: return(0);
1481: }
1482:
1.32 schwarze 1483: for (flushed = j = 0; ; ) {
1.22 schwarze 1484: la = *pos;
1.36 schwarze 1485: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1486:
1.36 schwarze 1487: if (ARGS_ERROR == ac)
1.1 kristaps 1488: return(0);
1.36 schwarze 1489: if (ARGS_PUNCT == ac)
1.1 kristaps 1490: break;
1.36 schwarze 1491: if (ARGS_EOLN == ac)
1.1 kristaps 1492: break;
1493:
1.32 schwarze 1494: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1495: ARGS_QWORD != ac &&
1.40 schwarze 1496: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1497: if ( ! mdoc_word_alloc(m, line, la, p))
1498: return(0);
1499: continue;
1.40 schwarze 1500: } else if (0 == j)
1.32 schwarze 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:
1.36 schwarze 1510: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1511:
1512: if (MDOC_MAX != ntok) {
1.22 schwarze 1513: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1514: return(0);
1515: flushed = 1;
1.36 schwarze 1516: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1517: return(0);
1.32 schwarze 1518: j++;
1.1 kristaps 1519: break;
1520: }
1521:
1522: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1523: ARGS_QWORD != ac &&
1.40 schwarze 1524: ! flushed &&
1525: DELIM_NONE != mdoc_isdelim(p)) {
1.22 schwarze 1526: if ( ! rew_elem(m, tok))
1.1 kristaps 1527: return(0);
1528: flushed = 1;
1529: }
1.28 schwarze 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: */
1537: if (MDOC_Xr == tok && j == maxargs) {
1.32 schwarze 1538: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.28 schwarze 1539: return(0);
1540: if ( ! rew_elem(m, MDOC_Ns))
1541: return(0);
1542: }
1543:
1.22 schwarze 1544: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1545: return(0);
1.32 schwarze 1546: j++;
1.1 kristaps 1547: }
1548:
1.32 schwarze 1549: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1550: return(0);
1551:
1552: /* Close out in a consistent state. */
1.22 schwarze 1553:
1554: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1555: return(0);
1.37 schwarze 1556: if ( ! nl)
1.1 kristaps 1557: return(1);
1.22 schwarze 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: {
1.36 schwarze 1565: int la;
1566: enum margserr ac;
1567: enum margverr av;
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:
1.53 schwarze 1574: if (tok == MDOC_Pp)
1575: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1576:
1.22 schwarze 1577: /* Parse macro arguments. */
1.1 kristaps 1578:
1.22 schwarze 1579: for (arg = NULL; ; ) {
1.1 kristaps 1580: la = *pos;
1.36 schwarze 1581: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1582:
1.36 schwarze 1583: if (ARGV_WORD == av) {
1.1 kristaps 1584: *pos = la;
1585: break;
1586: }
1.36 schwarze 1587: if (ARGV_EOLN == av)
1.1 kristaps 1588: break;
1.36 schwarze 1589: if (ARGV_ARG == av)
1.1 kristaps 1590: continue;
1591:
1592: mdoc_argv_free(arg);
1593: return(0);
1594: }
1595:
1.22 schwarze 1596: /* Open element scope. */
1597:
1598: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1599: return(0);
1600:
1.22 schwarze 1601: /* Parse argument terms. */
1.1 kristaps 1602:
1603: for (;;) {
1604: la = *pos;
1.36 schwarze 1605: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1606:
1.36 schwarze 1607: if (ARGS_ERROR == ac)
1.1 kristaps 1608: return(0);
1.36 schwarze 1609: if (ARGS_EOLN == ac)
1.1 kristaps 1610: break;
1611:
1.36 schwarze 1612: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1613:
1.36 schwarze 1614: if (MDOC_MAX == ntok) {
1615: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1616: return(0);
1.36 schwarze 1617: continue;
1618: }
1.1 kristaps 1619:
1.36 schwarze 1620: if ( ! rew_elem(m, tok))
1.1 kristaps 1621: return(0);
1.36 schwarze 1622: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1623: }
1624:
1.22 schwarze 1625: /* Close out (no delimiters). */
1626:
1627: return(rew_elem(m, tok));
1.28 schwarze 1628: }
1629:
1630:
1631: /* ARGSUSED */
1632: static int
1633: ctx_synopsis(MACRO_PROT_ARGS)
1634: {
1.37 schwarze 1635: int nl;
1636:
1637: nl = MDOC_NEWLINE & m->flags;
1.28 schwarze 1638:
1639: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.53 schwarze 1640: if ( ! (MDOC_SYNOPSIS & m->flags))
1.28 schwarze 1641: return(in_line(m, tok, line, ppos, pos, buf));
1642:
1643: /* If we're a nested call, same place. */
1.37 schwarze 1644: if ( ! nl)
1.28 schwarze 1645: return(in_line(m, tok, line, ppos, pos, buf));
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: */
1.51 schwarze 1652: if (MDOC_Nm == tok)
1653: return(blk_full(m, tok, line, ppos, pos, buf));
1654: assert(MDOC_Vt == tok);
1.28 schwarze 1655: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.1 kristaps 1656: }
1657:
1658:
1659: /* ARGSUSED */
1660: static int
1661: obsolete(MACRO_PROT_ARGS)
1662: {
1663:
1.44 schwarze 1664: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1665: }
1666:
1667:
1.17 schwarze 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
1.46 schwarze 1674: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1675: {
1.36 schwarze 1676: int la, pos;
1.46 schwarze 1677: enum margserr ac;
1.36 schwarze 1678: enum mdoct ntok;
1679: char *p;
1.1 kristaps 1680:
1.17 schwarze 1681: for (pos = ppos; ; ) {
1682: la = pos;
1.1 kristaps 1683:
1.46 schwarze 1684: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1685:
1.46 schwarze 1686: if (ARGS_ERROR == ac)
1.17 schwarze 1687: return(0);
1.46 schwarze 1688: if (ARGS_EOLN == ac)
1.17 schwarze 1689: break;
1.1 kristaps 1690:
1.46 schwarze 1691: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1692:
1.36 schwarze 1693: if (MDOC_MAX == ntok) {
1694: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1695: return(0);
1.36 schwarze 1696: continue;
1697: }
1.1 kristaps 1698:
1.36 schwarze 1699: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1700: return(0);
1.36 schwarze 1701: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1702: }
1703:
1704: return(1);
1705: }
1.17 schwarze 1706:
1707:
1.46 schwarze 1708: /* ARGSUSED */
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:
1744: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1745: return(0);
1746: return(append_delims(m, line, pos, buf));
1747: }
1748:
1749: return(1);
1750: }
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