Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.55
1.55 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.54 2010/07/13 01:09:13 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,
33: REWIND_LATER,
1.54 schwarze 34: REWIND_ERROR
1.35 schwarze 35: };
1.1 kristaps 36:
1.36 schwarze 37: static int blk_full(MACRO_PROT_ARGS);
38: static int blk_exp_close(MACRO_PROT_ARGS);
39: static int blk_part_exp(MACRO_PROT_ARGS);
40: static int blk_part_imp(MACRO_PROT_ARGS);
41: static int ctx_synopsis(MACRO_PROT_ARGS);
42: static int in_line_eoln(MACRO_PROT_ARGS);
43: static int in_line_argn(MACRO_PROT_ARGS);
44: static int in_line(MACRO_PROT_ARGS);
45: static int obsolete(MACRO_PROT_ARGS);
1.46 schwarze 46: static int phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 47:
48: static int append_delims(struct mdoc *,
49: int, int *, char *);
50: static enum mdoct lookup(enum mdoct, const char *);
51: static enum mdoct lookup_raw(const char *);
1.49 schwarze 52: static int make_pending(struct mdoc_node *, enum mdoct,
1.47 schwarze 53: struct mdoc *, int, int);
1.46 schwarze 54: static int phrase(struct mdoc *, int, int, char *);
1.36 schwarze 55: static enum mdoct rew_alt(enum mdoct);
56: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
57: const struct mdoc_node *);
58: static int rew_elem(struct mdoc *, enum mdoct);
59: static int rew_last(struct mdoc *,
60: const struct mdoc_node *);
61: static int rew_sub(enum mdoc_type, struct mdoc *,
62: enum mdoct, int, int);
1.1 kristaps 63:
64: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.4 schwarze 65: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
1.1 kristaps 66: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
67: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
68: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
69: { blk_full, 0 }, /* Sh */
70: { blk_full, 0 }, /* Ss */
1.16 schwarze 71: { in_line_eoln, 0 }, /* Pp */
1.1 kristaps 72: { blk_part_imp, MDOC_PARSED }, /* D1 */
73: { blk_part_imp, MDOC_PARSED }, /* Dl */
74: { blk_full, MDOC_EXPLICIT }, /* Bd */
75: { blk_exp_close, MDOC_EXPLICIT }, /* Ed */
76: { blk_full, MDOC_EXPLICIT }, /* Bl */
77: { blk_exp_close, MDOC_EXPLICIT }, /* El */
78: { blk_full, MDOC_PARSED }, /* It */
79: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.3 schwarze 80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 81: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.15 schwarze 82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
1.1 kristaps 83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
87: { in_line_eoln, 0 }, /* Ex */
88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
89: { in_line_eoln, 0 }, /* Fd */
90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
1.3 schwarze 92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.11 schwarze 94: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.12 schwarze 96: { blk_full, 0 }, /* Nd */
1.51 schwarze 97: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 98: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
99: { obsolete, 0 }, /* Ot */
100: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
101: { in_line_eoln, 0 }, /* Rv */
102: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
103: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.28 schwarze 104: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
105: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.1 kristaps 106: { in_line_eoln, 0 }, /* %A */
107: { in_line_eoln, 0 }, /* %B */
108: { in_line_eoln, 0 }, /* %D */
109: { in_line_eoln, 0 }, /* %I */
110: { in_line_eoln, 0 }, /* %J */
111: { in_line_eoln, 0 }, /* %N */
112: { in_line_eoln, 0 }, /* %O */
113: { in_line_eoln, 0 }, /* %P */
114: { in_line_eoln, 0 }, /* %R */
115: { in_line_eoln, 0 }, /* %T */
116: { in_line_eoln, 0 }, /* %V */
117: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
118: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
119: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
120: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
121: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
122: { blk_full, MDOC_EXPLICIT }, /* Bf */
123: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
124: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
125: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
126: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
127: { in_line_eoln, 0 }, /* Db */
128: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
129: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
130: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
131: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
132: { blk_exp_close, MDOC_EXPLICIT }, /* Ef */
133: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
134: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
135: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 136: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.1 kristaps 137: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* No */
138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ns */
139: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
141: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.35 schwarze 142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.1 kristaps 143: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
144: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
145: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
146: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
147: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
148: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
149: { blk_exp_close, MDOC_EXPLICIT }, /* Re */
150: { blk_full, MDOC_EXPLICIT }, /* Rs */
151: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
152: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
153: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
154: { in_line_eoln, 0 }, /* Sm */
155: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
156: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
157: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
158: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
159: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
160: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
161: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
162: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
163: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
164: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
165: { blk_full, MDOC_EXPLICIT }, /* Bk */
166: { blk_exp_close, MDOC_EXPLICIT }, /* Ek */
167: { in_line_eoln, 0 }, /* Bt */
168: { in_line_eoln, 0 }, /* Hf */
169: { obsolete, 0 }, /* Fr */
170: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 171: { in_line, 0 }, /* Lb */
1.16 schwarze 172: { in_line_eoln, 0 }, /* Lp */
1.3 schwarze 173: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
174: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
1.1 kristaps 175: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
176: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
177: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
178: { in_line_eoln, 0 }, /* %C */
179: { obsolete, 0 }, /* Es */
180: { obsolete, 0 }, /* En */
181: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
182: { in_line_eoln, 0 }, /* %Q */
1.13 schwarze 183: { in_line_eoln, 0 }, /* br */
184: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 185: { in_line_eoln, 0 }, /* %U */
1.46 schwarze 186: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
1.1 kristaps 187: };
188:
189: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
190:
191:
192: /*
193: * This is called at the end of parsing. It must traverse up the tree,
194: * closing out open [implicit] scopes. Obviously, open explicit scopes
195: * are errors.
196: */
197: int
1.22 schwarze 198: mdoc_macroend(struct mdoc *m)
1.1 kristaps 199: {
200: struct mdoc_node *n;
201:
202: /* Scan for open explicit scopes. */
203:
1.22 schwarze 204: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 205:
206: for ( ; n; n = n->parent) {
207: if (MDOC_BLOCK != n->type)
208: continue;
209: if ( ! (MDOC_EXPLICIT & mdoc_macros[n->tok].flags))
210: continue;
1.44 schwarze 211: mdoc_nmsg(m, n, MANDOCERR_SYNTSCOPE);
212: return(0);
1.1 kristaps 213: }
214:
1.22 schwarze 215: /* Rewind to the first. */
216:
217: return(rew_last(m, m->first));
1.1 kristaps 218: }
219:
1.22 schwarze 220:
221: /*
222: * Look up a macro from within a subsequent context.
223: */
1.36 schwarze 224: static enum mdoct
225: lookup(enum mdoct from, const char *p)
1.21 schwarze 226: {
1.24 schwarze 227: /* FIXME: make -diag lists be un-PARSED. */
1.21 schwarze 228:
229: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
230: return(MDOC_MAX);
1.24 schwarze 231: return(lookup_raw(p));
1.21 schwarze 232: }
233:
234:
1.22 schwarze 235: /*
236: * Lookup a macro following the initial line macro.
237: */
1.36 schwarze 238: static enum mdoct
1.24 schwarze 239: lookup_raw(const char *p)
1.1 kristaps 240: {
1.36 schwarze 241: enum mdoct res;
1.1 kristaps 242:
1.24 schwarze 243: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.21 schwarze 244: return(MDOC_MAX);
245: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 246: return(res);
247: return(MDOC_MAX);
248: }
249:
250:
251: static int
1.22 schwarze 252: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 253: {
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);
262: if ( ! mdoc_action_post(mdoc))
263: return(0);
264: mdoc->last = mdoc->last->parent;
265: assert(mdoc->last);
266: }
267:
268: if ( ! mdoc_valid_post(mdoc))
269: return(0);
270: return(mdoc_action_post(mdoc));
271: }
272:
273:
1.22 schwarze 274: /*
1.48 schwarze 275: * For a block closing macro, return the corresponding opening one.
276: * Otherwise, return the macro itself.
1.22 schwarze 277: */
1.34 schwarze 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:
1.48 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.
327: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
328: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 329: */
1.35 schwarze 330: static enum rew
1.34 schwarze 331: rew_dohalt(enum mdoct tok, enum mdoc_type type,
332: const struct mdoc_node *p)
1.1 kristaps 333: {
334:
1.50 schwarze 335: /*
336: * No matching token, no delimiting block, no broken block.
337: * This can happen when full implicit macros are called for
338: * the first time but try to rewind their previous
339: * instance anyway.
340: */
1.1 kristaps 341: if (MDOC_ROOT == p->type)
1.48 schwarze 342: return(MDOC_BLOCK == type &&
343: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
344: REWIND_ERROR : REWIND_NONE);
1.50 schwarze 345:
346: /*
347: * When starting to rewind, skip plain text
348: * and nodes that have already been rewound.
349: */
1.48 schwarze 350: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
351: return(REWIND_MORE);
352:
1.50 schwarze 353: /*
354: * The easiest case: Found a matching token.
355: * This applies to both blocks and elements.
356: */
1.48 schwarze 357: tok = rew_alt(tok);
358: if (tok == p->tok)
359: return(p->end ? REWIND_NONE :
360: type == p->type ? REWIND_THIS : REWIND_MORE);
361:
1.50 schwarze 362: /*
363: * While elements do require rewinding for themselves,
364: * they never affect rewinding of other nodes.
365: */
1.48 schwarze 366: if (MDOC_ELEM == p->type)
367: return(REWIND_MORE);
1.1 kristaps 368:
1.50 schwarze 369: /*
370: * Blocks delimited by our target token get REWIND_MORE.
371: * Blocks delimiting our target token get REWIND_NONE.
372: */
1.1 kristaps 373: switch (tok) {
1.48 schwarze 374: case (MDOC_Bl):
375: if (MDOC_It == p->tok)
376: return(REWIND_MORE);
1.1 kristaps 377: break;
378: case (MDOC_It):
379: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.48 schwarze 380: return(REWIND_NONE);
1.1 kristaps 381: break;
1.48 schwarze 382: /*
383: * XXX Badly nested block handling still fails badly
384: * when one block is breaking two blocks of the same type.
385: * This is an incomplete and extremely ugly workaround,
386: * required to let the OpenBSD tree build.
387: */
388: case (MDOC_Oo):
389: if (MDOC_Op == p->tok)
390: return(REWIND_MORE);
1.1 kristaps 391: break;
1.51 schwarze 392: case (MDOC_Nm):
393: return(REWIND_NONE);
1.12 schwarze 394: case (MDOC_Nd):
395: /* FALLTHROUGH */
1.1 kristaps 396: case (MDOC_Ss):
397: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.48 schwarze 398: return(REWIND_NONE);
1.1 kristaps 399: /* FALLTHROUGH */
400: case (MDOC_Sh):
1.48 schwarze 401: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
402: MDOC_Sh == p->tok)
403: return(REWIND_MORE);
1.1 kristaps 404: break;
405: default:
406: break;
407: }
408:
1.50 schwarze 409: /*
410: * Default block rewinding rules.
1.51 schwarze 411: * In particular, always skip block end markers,
412: * and let all blocks rewind Nm children.
1.50 schwarze 413: */
1.54 schwarze 414: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
1.51 schwarze 415: (MDOC_BLOCK == p->type &&
1.50 schwarze 416: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
417: return(REWIND_MORE);
418:
419: /*
420: * Partial blocks allow delayed rewinding by default.
421: */
422: if (&blk_full != mdoc_macros[tok].fp)
423: return (REWIND_LATER);
424:
425: /*
426: * Full blocks can only be rewound when matching
427: * or when there is an explicit rule.
428: */
429: return(REWIND_ERROR);
1.1 kristaps 430: }
431:
432:
433: static int
1.34 schwarze 434: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 435: {
436: struct mdoc_node *n;
437:
438: n = mdoc->last;
439: if (MDOC_ELEM != n->type)
440: n = n->parent;
441: assert(MDOC_ELEM == n->type);
442: assert(tok == n->tok);
443:
444: return(rew_last(mdoc, n));
445: }
446:
447:
1.47 schwarze 448: /*
449: * We are trying to close a block identified by tok,
450: * but the child block *broken is still open.
451: * Thus, postpone closing the tok block
452: * until the rew_sub call closing *broken.
453: */
454: static int
455: make_pending(struct mdoc_node *broken, enum mdoct tok,
456: struct mdoc *m, int line, int ppos)
457: {
458: struct mdoc_node *breaker;
459:
460: /*
461: * Iterate backwards, searching for the block matching tok,
462: * that is, the block breaking the *broken block.
463: */
464: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
465:
466: /*
467: * If the *broken block had already been broken before
468: * and we encounter its breaker, make the tok block
469: * pending on the inner breaker.
470: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
471: * becomes "[A broken=[B [C->B B] tok=A] C]"
472: * and finally "[A [B->A [C->B B] A] C]".
473: */
474: if (breaker == broken->pending) {
475: broken = breaker;
476: continue;
477: }
478:
1.48 schwarze 479: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.47 schwarze 480: continue;
481: if (MDOC_BODY == broken->type)
482: broken = broken->parent;
483:
484: /*
485: * Found the breaker.
486: * If another, outer breaker is already pending on
487: * the *broken block, we must not clobber the link
488: * to the outer breaker, but make it pending on the
489: * new, now inner breaker.
490: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
491: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
492: * and finally "[A [B->A [C->B A] B] C]".
493: */
494: if (broken->pending) {
495: struct mdoc_node *taker;
496:
497: /*
498: * If the breaker had also been broken before,
499: * it cannot take on the outer breaker itself,
500: * but must hand it on to its own breakers.
501: * Graphically, this is the following situation:
502: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
503: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
504: */
505: taker = breaker;
506: while (taker->pending)
507: taker = taker->pending;
508: taker->pending = broken->pending;
509: }
510: broken->pending = breaker;
1.51 schwarze 511: mdoc_vmsg(m, MANDOCERR_SCOPENEST, line, ppos,
512: "%s breaks %s", mdoc_macronames[tok],
513: mdoc_macronames[broken->tok]);
1.47 schwarze 514: return(1);
515: }
516:
517: /*
518: * Found no matching block for tok.
519: * Are you trying to close a block that is not open?
1.48 schwarze 520: * XXX Make this non-fatal.
1.47 schwarze 521: */
522: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE);
523: return(0);
524: }
525:
1.48 schwarze 526:
1.1 kristaps 527: static int
1.22 schwarze 528: rew_sub(enum mdoc_type t, struct mdoc *m,
1.34 schwarze 529: enum mdoct tok, int line, int ppos)
1.1 kristaps 530: {
531: struct mdoc_node *n;
532:
1.48 schwarze 533: n = m->last;
534: while (n) {
535: switch (rew_dohalt(tok, t, n)) {
536: case (REWIND_NONE):
537: return(1);
538: case (REWIND_THIS):
539: break;
540: case (REWIND_MORE):
541: n = n->parent;
542: continue;
543: case (REWIND_LATER):
544: return(make_pending(n, tok, m, line, ppos));
545: case (REWIND_ERROR):
546: /* XXX Make this non-fatal. */
1.51 schwarze 547: mdoc_vmsg(m, MANDOCERR_SCOPEFATAL, line, ppos,
548: "%s cannot break %s", mdoc_macronames[tok],
549: mdoc_macronames[n->tok]);
1.48 schwarze 550: return 0;
1.22 schwarze 551: }
1.48 schwarze 552: break;
1.1 kristaps 553: }
554:
555: assert(n);
1.29 schwarze 556: if ( ! rew_last(m, n))
557: return(0);
558:
559: /*
1.47 schwarze 560: * The current block extends an enclosing block.
561: * Now that the current block ends, close the enclosing block, too.
1.29 schwarze 562: */
1.47 schwarze 563: while (NULL != (n = n->pending)) {
1.29 schwarze 564: if ( ! rew_last(m, n))
565: return(0);
1.47 schwarze 566: if (MDOC_HEAD == n->type &&
567: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.29 schwarze 568: return(0);
569: }
1.54 schwarze 570:
1.29 schwarze 571: return(1);
1.1 kristaps 572: }
573:
574:
575: static int
1.42 schwarze 576: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 577: {
1.42 schwarze 578: int la;
1.36 schwarze 579: enum margserr ac;
1.1 kristaps 580: char *p;
581:
1.42 schwarze 582: if ('\0' == buf[*pos])
1.1 kristaps 583: return(1);
584:
585: for (;;) {
1.42 schwarze 586: la = *pos;
587: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 588:
1.36 schwarze 589: if (ARGS_ERROR == ac)
1.1 kristaps 590: return(0);
1.36 schwarze 591: else if (ARGS_EOLN == ac)
1.1 kristaps 592: break;
1.42 schwarze 593:
1.40 schwarze 594: assert(DELIM_NONE != mdoc_isdelim(p));
1.42 schwarze 595: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 596: return(0);
1.43 schwarze 597:
1.42 schwarze 598: /*
599: * If we encounter end-of-sentence symbols, then trigger
600: * the double-space.
601: *
602: * XXX: it's easy to allow this to propogate outward to
603: * the last symbol, such that `. )' will cause the
604: * correct double-spacing. However, (1) groff isn't
605: * smart enough to do this and (2) it would require
606: * knowing which symbols break this behaviour, for
607: * example, `. ;' shouldn't propogate the double-space.
608: */
1.55 ! schwarze 609: if (mandoc_eos(p, strlen(p), 0))
1.42 schwarze 610: m->last->flags |= MDOC_EOS;
1.1 kristaps 611: }
612:
613: return(1);
614: }
615:
616:
617: /*
618: * Close out block partial/full explicit.
619: */
620: static int
621: blk_exp_close(MACRO_PROT_ARGS)
622: {
1.47 schwarze 623: struct mdoc_node *body; /* Our own body. */
624: struct mdoc_node *later; /* A sub-block starting later. */
625: struct mdoc_node *n; /* For searching backwards. */
626:
1.37 schwarze 627: int j, lastarg, maxargs, flushed, nl;
1.36 schwarze 628: enum margserr ac;
1.47 schwarze 629: enum mdoct atok, ntok;
1.1 kristaps 630: char *p;
631:
1.37 schwarze 632: nl = MDOC_NEWLINE & m->flags;
633:
1.1 kristaps 634: switch (tok) {
635: case (MDOC_Ec):
636: maxargs = 1;
637: break;
638: default:
639: maxargs = 0;
640: break;
641: }
642:
1.47 schwarze 643: /*
644: * Search backwards for beginnings of blocks,
645: * both of our own and of pending sub-blocks.
646: */
647: atok = rew_alt(tok);
648: body = later = NULL;
649: for (n = m->last; n; n = n->parent) {
650: if (MDOC_VALID & n->flags)
651: continue;
652:
653: /* Remember the start of our own body. */
654: if (MDOC_BODY == n->type && atok == n->tok) {
1.54 schwarze 655: if (ENDBODY_NOT == n->end)
1.47 schwarze 656: body = n;
657: continue;
658: }
659:
1.51 schwarze 660: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.47 schwarze 661: continue;
662: if (atok == n->tok) {
663: assert(body);
664:
665: /*
666: * Found the start of our own block.
667: * When there is no pending sub block,
668: * just proceed to closing out.
669: */
670: if (NULL == later)
671: break;
672:
673: /*
674: * When there is a pending sub block,
675: * postpone closing out the current block
676: * until the rew_sub() closing out the sub-block.
677: */
678: if ( ! make_pending(later, tok, m, line, ppos))
679: return(0);
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;
699: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags) {
700: assert( ! (MDOC_ACTED & n->flags));
701: later = n;
702: }
703: }
704:
1.1 kristaps 705: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.44 schwarze 706: /* FIXME: do this in validate */
1.14 schwarze 707: if (buf[*pos])
1.44 schwarze 708: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 709: return(0);
1.14 schwarze 710:
1.22 schwarze 711: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.14 schwarze 712: return(0);
1.22 schwarze 713: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 714: }
715:
1.22 schwarze 716: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 717: return(0);
718:
1.47 schwarze 719: if (NULL == later && maxargs > 0)
1.22 schwarze 720: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 721: return(0);
722:
1.20 schwarze 723: for (flushed = j = 0; ; j++) {
1.1 kristaps 724: lastarg = *pos;
725:
726: if (j == maxargs && ! flushed) {
1.22 schwarze 727: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 728: return(0);
729: flushed = 1;
730: }
731:
1.36 schwarze 732: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 733:
1.36 schwarze 734: if (ARGS_ERROR == ac)
1.1 kristaps 735: return(0);
1.36 schwarze 736: if (ARGS_PUNCT == ac)
1.1 kristaps 737: break;
1.36 schwarze 738: if (ARGS_EOLN == ac)
1.1 kristaps 739: break;
740:
1.36 schwarze 741: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
742:
743: if (MDOC_MAX == ntok) {
744: if ( ! mdoc_word_alloc(m, line, lastarg, p))
1.1 kristaps 745: return(0);
1.36 schwarze 746: continue;
747: }
1.1 kristaps 748:
1.36 schwarze 749: if ( ! flushed) {
750: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
751: return(0);
752: flushed = 1;
753: }
754: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 755: return(0);
1.36 schwarze 756: break;
1.1 kristaps 757: }
758:
1.22 schwarze 759: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 760: return(0);
761:
1.37 schwarze 762: if ( ! nl)
1.1 kristaps 763: return(1);
1.22 schwarze 764: return(append_delims(m, line, pos, buf));
1.1 kristaps 765: }
766:
767:
768: static int
769: in_line(MACRO_PROT_ARGS)
770: {
1.45 schwarze 771: int la, scope, cnt, nc, nl;
1.36 schwarze 772: enum margverr av;
773: enum mdoct ntok;
774: enum margserr ac;
1.40 schwarze 775: enum mdelim d;
1.36 schwarze 776: struct mdoc_arg *arg;
777: char *p;
1.1 kristaps 778:
1.37 schwarze 779: nl = MDOC_NEWLINE & m->flags;
780:
1.1 kristaps 781: /*
782: * Whether we allow ignored elements (those without content,
783: * usually because of reserved words) to squeak by.
784: */
1.32 schwarze 785:
1.1 kristaps 786: switch (tok) {
1.19 schwarze 787: case (MDOC_An):
788: /* FALLTHROUGH */
789: case (MDOC_Ar):
1.1 kristaps 790: /* FALLTHROUGH */
791: case (MDOC_Fl):
792: /* FALLTHROUGH */
1.3 schwarze 793: case (MDOC_Lk):
1.18 schwarze 794: /* FALLTHROUGH */
1.19 schwarze 795: case (MDOC_Nm):
796: /* FALLTHROUGH */
1.18 schwarze 797: case (MDOC_Pa):
1.1 kristaps 798: nc = 1;
799: break;
800: default:
801: nc = 0;
802: break;
803: }
804:
1.20 schwarze 805: for (arg = NULL;; ) {
1.1 kristaps 806: la = *pos;
1.36 schwarze 807: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 808:
1.36 schwarze 809: if (ARGV_WORD == av) {
1.1 kristaps 810: *pos = la;
811: break;
812: }
1.36 schwarze 813: if (ARGV_EOLN == av)
1.1 kristaps 814: break;
1.36 schwarze 815: if (ARGV_ARG == av)
1.1 kristaps 816: continue;
817:
818: mdoc_argv_free(arg);
819: return(0);
820: }
821:
1.45 schwarze 822: for (cnt = scope = 0;; ) {
1.1 kristaps 823: la = *pos;
1.36 schwarze 824: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 825:
1.36 schwarze 826: if (ARGS_ERROR == ac)
1.1 kristaps 827: return(0);
1.36 schwarze 828: if (ARGS_EOLN == ac)
1.1 kristaps 829: break;
1.36 schwarze 830: if (ARGS_PUNCT == ac)
1.1 kristaps 831: break;
832:
1.36 schwarze 833: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 834:
835: /*
836: * In this case, we've located a submacro and must
837: * execute it. Close out scope, if open. If no
838: * elements have been generated, either create one (nc)
839: * or raise a warning.
840: */
841:
1.36 schwarze 842: if (MDOC_MAX != ntok) {
1.45 schwarze 843: if (scope && ! rew_elem(m, tok))
1.1 kristaps 844: return(0);
845: if (nc && 0 == cnt) {
1.22 schwarze 846: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 847: return(0);
1.22 schwarze 848: if ( ! rew_last(m, m->last))
1.3 schwarze 849: return(0);
1.1 kristaps 850: } else if ( ! nc && 0 == cnt) {
851: mdoc_argv_free(arg);
1.44 schwarze 852: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.1 kristaps 853: return(0);
854: }
1.36 schwarze 855: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 856: return(0);
1.37 schwarze 857: if ( ! nl)
1.1 kristaps 858: return(1);
1.22 schwarze 859: return(append_delims(m, line, pos, buf));
1.21 schwarze 860: }
1.1 kristaps 861:
862: /*
863: * Non-quote-enclosed punctuation. Set up our scope, if
864: * a word; rewind the scope, if a delimiter; then append
865: * the word.
866: */
867:
1.40 schwarze 868: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 869:
1.45 schwarze 870: if (DELIM_NONE != d) {
871: /*
872: * If we encounter closing punctuation, no word
873: * has been omitted, no scope is open, and we're
874: * allowed to have an empty element, then start
875: * a new scope. `Ar', `Fl', and `Li', only do
876: * this once per invocation. There may be more
877: * of these (all of them?).
878: */
879: if (0 == cnt && (nc || MDOC_Li == tok) &&
880: DELIM_CLOSE == d && ! scope) {
881: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
882: return(0);
883: if (MDOC_Ar == tok || MDOC_Li == tok ||
884: MDOC_Fl == tok)
885: cnt++;
886: scope = 1;
887: }
888: /*
889: * Close out our scope, if one is open, before
890: * any punctuation.
891: */
892: if (scope && ! rew_elem(m, tok))
1.1 kristaps 893: return(0);
1.45 schwarze 894: scope = 0;
895: } else if ( ! scope) {
1.22 schwarze 896: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 897: return(0);
1.45 schwarze 898: scope = 1;
1.1 kristaps 899: }
900:
1.40 schwarze 901: if (DELIM_NONE == d)
1.1 kristaps 902: cnt++;
1.22 schwarze 903: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 904: return(0);
1.27 schwarze 905:
906: /*
907: * `Fl' macros have their scope re-opened with each new
908: * word so that the `-' can be added to each one without
909: * having to parse out spaces.
910: */
1.45 schwarze 911: if (scope && MDOC_Fl == tok) {
1.27 schwarze 912: if ( ! rew_elem(m, tok))
913: return(0);
1.45 schwarze 914: scope = 0;
1.27 schwarze 915: }
1.1 kristaps 916: }
917:
1.45 schwarze 918: if (scope && ! rew_elem(m, tok))
1.1 kristaps 919: return(0);
920:
921: /*
922: * If no elements have been collected and we're allowed to have
923: * empties (nc), open a scope and close it out. Otherwise,
924: * raise a warning.
925: */
1.32 schwarze 926:
1.1 kristaps 927: if (nc && 0 == cnt) {
1.22 schwarze 928: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 929: return(0);
1.22 schwarze 930: if ( ! rew_last(m, m->last))
1.3 schwarze 931: return(0);
932: } else if ( ! nc && 0 == cnt) {
1.1 kristaps 933: mdoc_argv_free(arg);
1.44 schwarze 934: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.1 kristaps 935: return(0);
936: }
937:
1.37 schwarze 938: if ( ! nl)
1.1 kristaps 939: return(1);
1.22 schwarze 940: return(append_delims(m, line, pos, buf));
1.1 kristaps 941: }
942:
943:
944: static int
945: blk_full(MACRO_PROT_ARGS)
946: {
1.43 schwarze 947: int la, nl;
1.1 kristaps 948: struct mdoc_arg *arg;
1.32 schwarze 949: struct mdoc_node *head; /* save of head macro */
1.34 schwarze 950: struct mdoc_node *body; /* save of body macro */
1.32 schwarze 951: struct mdoc_node *n;
1.46 schwarze 952: enum mdoc_type mtt;
1.36 schwarze 953: enum mdoct ntok;
1.37 schwarze 954: enum margserr ac, lac;
1.36 schwarze 955: enum margverr av;
1.1 kristaps 956: char *p;
957:
1.43 schwarze 958: nl = MDOC_NEWLINE & m->flags;
959:
1.32 schwarze 960: /* Close out prior implicit scope. */
1.12 schwarze 961:
1.1 kristaps 962: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.22 schwarze 963: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 964: return(0);
1.22 schwarze 965: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 966: return(0);
967: }
968:
1.32 schwarze 969: /*
970: * This routine accomodates implicitly- and explicitly-scoped
971: * macro openings. Implicit ones first close out prior scope
972: * (seen above). Delay opening the head until necessary to
973: * allow leading punctuation to print. Special consideration
974: * for `It -column', which has phrase-part syntax instead of
975: * regular child nodes.
976: */
977:
1.1 kristaps 978: for (arg = NULL;; ) {
1.32 schwarze 979: la = *pos;
1.36 schwarze 980: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 981:
1.36 schwarze 982: if (ARGV_WORD == av) {
1.32 schwarze 983: *pos = la;
1.1 kristaps 984: break;
985: }
986:
1.36 schwarze 987: if (ARGV_EOLN == av)
1.1 kristaps 988: break;
1.36 schwarze 989: if (ARGV_ARG == av)
1.1 kristaps 990: continue;
991:
992: mdoc_argv_free(arg);
993: return(0);
994: }
995:
1.22 schwarze 996: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 997: return(0);
998:
1.34 schwarze 999: head = body = NULL;
1.1 kristaps 1000:
1.32 schwarze 1001: /*
1002: * The `Nd' macro has all arguments in its body: it's a hybrid
1003: * of block partial-explicit and full-implicit. Stupid.
1004: */
1.12 schwarze 1005:
1.32 schwarze 1006: if (MDOC_Nd == tok) {
1007: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1008: return(0);
1009: head = m->last;
1.22 schwarze 1010: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.12 schwarze 1011: return(0);
1.22 schwarze 1012: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.12 schwarze 1013: return(0);
1.34 schwarze 1014: body = m->last;
1.12 schwarze 1015: }
1016:
1.37 schwarze 1017: ac = ARGS_ERROR;
1018:
1.41 schwarze 1019: for ( ; ; ) {
1.32 schwarze 1020: la = *pos;
1.46 schwarze 1021: /* Initialise last-phrase-type with ARGS_PEND. */
1022: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.36 schwarze 1023: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.52 schwarze 1024:
1025: if (ARGS_PUNCT == ac)
1026: break;
1.1 kristaps 1027:
1.36 schwarze 1028: if (ARGS_ERROR == ac)
1.1 kristaps 1029: return(0);
1.46 schwarze 1030:
1031: if (ARGS_EOLN == ac) {
1032: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1033: break;
1034: /*
1035: * This is necessary: if the last token on a
1036: * line is a `Ta' or tab, then we'll get
1037: * ARGS_EOLN, so we must be smart enough to
1038: * reopen our scope if the last parse was a
1039: * phrase or partial phrase.
1040: */
1041: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1042: return(0);
1043: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1044: return(0);
1045: body = m->last;
1.1 kristaps 1046: break;
1.41 schwarze 1047: }
1048:
1.46 schwarze 1049: /*
1050: * Emit leading punctuation (i.e., punctuation before
1051: * the MDOC_HEAD) for non-phrase types.
1052: */
1.32 schwarze 1053:
1.37 schwarze 1054: if (NULL == head &&
1.46 schwarze 1055: ARGS_PEND != ac &&
1.37 schwarze 1056: ARGS_PHRASE != ac &&
1.36 schwarze 1057: ARGS_PPHRASE != ac &&
1058: ARGS_QWORD != ac &&
1.40 schwarze 1059: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1060: if ( ! mdoc_word_alloc(m, line, la, p))
1061: return(0);
1062: continue;
1063: }
1064:
1.46 schwarze 1065: /* Open a head if one hasn't been opened. */
1.32 schwarze 1066:
1.46 schwarze 1067: if (NULL == head) {
1.32 schwarze 1068: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1069: return(0);
1.29 schwarze 1070: head = m->last;
1.32 schwarze 1071: }
1072:
1.46 schwarze 1073: if (ARGS_PHRASE == ac ||
1074: ARGS_PEND == ac ||
1075: ARGS_PPHRASE == ac) {
1076: /*
1077: * If we haven't opened a body yet, rewind the
1078: * head; if we have, rewind that instead.
1079: */
1080:
1081: mtt = body ? MDOC_BODY : MDOC_HEAD;
1082: if ( ! rew_sub(mtt, m, tok, line, ppos))
1083: return(0);
1084:
1085: /* Then allocate our body context. */
1086:
1087: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1088: return(0);
1089: body = m->last;
1090:
1091: /*
1092: * Process phrases: set whether we're in a
1093: * partial-phrase (this effects line handling)
1094: * then call down into the phrase parser.
1095: */
1096:
1.41 schwarze 1097: if (ARGS_PPHRASE == ac)
1098: m->flags |= MDOC_PPHRASE;
1.46 schwarze 1099: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1100: m->flags |= MDOC_PPHRASE;
1101:
1102: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1103: return(0);
1.46 schwarze 1104:
1.41 schwarze 1105: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1106: continue;
1107: }
1108:
1.36 schwarze 1109: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1110:
1111: if (MDOC_MAX == ntok) {
1112: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1113: return(0);
1.36 schwarze 1114: continue;
1.32 schwarze 1115: }
1.36 schwarze 1116:
1117: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1118: return(0);
1.36 schwarze 1119: break;
1.32 schwarze 1120: }
1.1 kristaps 1121:
1.32 schwarze 1122: if (NULL == head) {
1123: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1124: return(0);
1.32 schwarze 1125: head = m->last;
1.1 kristaps 1126: }
1127:
1.43 schwarze 1128: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1129: return(0);
1.12 schwarze 1130:
1.34 schwarze 1131: /* If we've already opened our body, exit now. */
1.32 schwarze 1132:
1.34 schwarze 1133: if (NULL != body)
1.46 schwarze 1134: goto out;
1.29 schwarze 1135:
1136: /*
1.34 schwarze 1137: * If there is an open (i.e., unvalidated) sub-block requiring
1138: * explicit close-out, postpone switching the current block from
1139: * head to body until the rew_sub() call closing out that
1140: * sub-block.
1.29 schwarze 1141: */
1142: for (n = m->last; n && n != head; n = n->parent) {
1.34 schwarze 1143: if (MDOC_BLOCK == n->type &&
1144: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1145: ! (MDOC_VALID & n->flags)) {
1146: assert( ! (MDOC_ACTED & n->flags));
1.29 schwarze 1147: n->pending = head;
1148: return(1);
1149: }
1150: }
1.54 schwarze 1151:
1.32 schwarze 1152: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1153:
1.22 schwarze 1154: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1155: return(0);
1.22 schwarze 1156: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1157: return(0);
1158:
1.46 schwarze 1159: out:
1160: if ( ! (MDOC_FREECOL & m->flags))
1161: return(1);
1162:
1163: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1164: return(0);
1165: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1166: return(0);
1167:
1168: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1169: return(1);
1170: }
1171:
1172:
1173: static int
1174: blk_part_imp(MACRO_PROT_ARGS)
1175: {
1.43 schwarze 1176: int la, nl;
1.36 schwarze 1177: enum mdoct ntok;
1178: enum margserr ac;
1.1 kristaps 1179: char *p;
1.32 schwarze 1180: struct mdoc_node *blk; /* saved block context */
1181: struct mdoc_node *body; /* saved body context */
1182: struct mdoc_node *n;
1.1 kristaps 1183:
1.43 schwarze 1184: nl = MDOC_NEWLINE & m->flags;
1185:
1.32 schwarze 1186: /*
1187: * A macro that spans to the end of the line. This is generally
1188: * (but not necessarily) called as the first macro. The block
1189: * has a head as the immediate child, which is always empty,
1190: * followed by zero or more opening punctuation nodes, then the
1191: * body (which may be empty, depending on the macro), then zero
1192: * or more closing punctuation nodes.
1193: */
1.22 schwarze 1194:
1195: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1196: return(0);
1.32 schwarze 1197:
1.22 schwarze 1198: blk = m->last;
1.32 schwarze 1199:
1.22 schwarze 1200: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1201: return(0);
1.22 schwarze 1202: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1203: return(0);
1204:
1.32 schwarze 1205: /*
1206: * Open the body scope "on-demand", that is, after we've
1207: * processed all our the leading delimiters (open parenthesis,
1208: * etc.).
1209: */
1.1 kristaps 1210:
1.32 schwarze 1211: for (body = NULL; ; ) {
1.22 schwarze 1212: la = *pos;
1.36 schwarze 1213: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.32 schwarze 1214:
1.36 schwarze 1215: if (ARGS_ERROR == ac)
1.1 kristaps 1216: return(0);
1.36 schwarze 1217: if (ARGS_EOLN == ac)
1.32 schwarze 1218: break;
1.36 schwarze 1219: if (ARGS_PUNCT == ac)
1.1 kristaps 1220: break;
1221:
1.36 schwarze 1222: if (NULL == body && ARGS_QWORD != ac &&
1.40 schwarze 1223: DELIM_OPEN == mdoc_isdelim(p)) {
1.22 schwarze 1224: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1225: return(0);
1226: continue;
1227: }
1228:
1.32 schwarze 1229: if (NULL == body) {
1230: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1231: return(0);
1232: body = m->last;
1233: }
1234:
1.36 schwarze 1235: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1236:
1237: if (MDOC_MAX == ntok) {
1238: if ( ! mdoc_word_alloc(m, line, la, p))
1.32 schwarze 1239: return(0);
1.36 schwarze 1240: continue;
1241: }
1.32 schwarze 1242:
1.36 schwarze 1243: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1244: return(0);
1.36 schwarze 1245: break;
1.32 schwarze 1246: }
1247:
1248: /* Clean-ups to leave in a consistent state. */
1249:
1250: if (NULL == body) {
1251: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1252: return(0);
1.32 schwarze 1253: body = m->last;
1.39 schwarze 1254: }
1255:
1256: for (n = body->child; n && n->next; n = n->next)
1257: /* Do nothing. */ ;
1258:
1259: /*
1260: * End of sentence spacing: if the last node is a text node and
1261: * has a trailing period, then mark it as being end-of-sentence.
1262: */
1263:
1264: if (n && MDOC_TEXT == n->type && n->string)
1.55 ! schwarze 1265: if (mandoc_eos(n->string, strlen(n->string), 1))
1.39 schwarze 1266: n->flags |= MDOC_EOS;
1267:
1268: /* Up-propogate the end-of-space flag. */
1269:
1270: if (n && (MDOC_EOS & n->flags)) {
1271: body->flags |= MDOC_EOS;
1272: body->parent->flags |= MDOC_EOS;
1.1 kristaps 1273: }
1274:
1.47 schwarze 1275: /*
1276: * If there is an open sub-block requiring explicit close-out,
1277: * postpone closing out the current block
1278: * until the rew_sub() call closing out the sub-block.
1279: */
1280: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1281: if (MDOC_BLOCK == n->type &&
1282: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1283: ! (MDOC_VALID & n->flags)) {
1284: assert( ! (MDOC_ACTED & n->flags));
1285: if ( ! make_pending(n, tok, m, line, ppos))
1286: return(0);
1287: if ( ! mdoc_endbody_alloc(m, line, ppos,
1288: tok, body, ENDBODY_NOSPACE))
1289: return(0);
1290: return(1);
1291: }
1292: }
1293:
1.22 schwarze 1294: /*
1295: * If we can't rewind to our body, then our scope has already
1296: * been closed by another macro (like `Oc' closing `Op'). This
1297: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.34 schwarze 1298: * crufty use of `Op' breakage.
1.1 kristaps 1299: */
1.51 schwarze 1300: if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPENEST,
1301: line, ppos, "%s broken", mdoc_macronames[tok]))
1.22 schwarze 1302: return(0);
1.32 schwarze 1303:
1.47 schwarze 1304: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 schwarze 1305: return(0);
1.1 kristaps 1306:
1.22 schwarze 1307: /* Standard appending of delimiters. */
1.1 kristaps 1308:
1.43 schwarze 1309: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1310: return(0);
1311:
1.22 schwarze 1312: /* Rewind scope, if applicable. */
1.1 kristaps 1313:
1.47 schwarze 1314: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1315: return(0);
1316:
1317: return(1);
1318: }
1319:
1320:
1321: static int
1322: blk_part_exp(MACRO_PROT_ARGS)
1323: {
1.37 schwarze 1324: int la, nl;
1.36 schwarze 1325: enum margserr ac;
1.32 schwarze 1326: struct mdoc_node *head; /* keep track of head */
1327: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1328: char *p;
1.36 schwarze 1329: enum mdoct ntok;
1.1 kristaps 1330:
1.37 schwarze 1331: nl = MDOC_NEWLINE & m->flags;
1332:
1.32 schwarze 1333: /*
1334: * The opening of an explicit macro having zero or more leading
1335: * punctuation nodes; a head with optional single element (the
1336: * case of `Eo'); and a body that may be empty.
1337: */
1.22 schwarze 1338:
1339: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1340: return(0);
1.22 schwarze 1341:
1.32 schwarze 1342: for (head = body = NULL; ; ) {
1.22 schwarze 1343: la = *pos;
1.36 schwarze 1344: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1345:
1.36 schwarze 1346: if (ARGS_ERROR == ac)
1.1 kristaps 1347: return(0);
1.36 schwarze 1348: if (ARGS_PUNCT == ac)
1.1 kristaps 1349: break;
1.36 schwarze 1350: if (ARGS_EOLN == ac)
1.1 kristaps 1351: break;
1352:
1.32 schwarze 1353: /* Flush out leading punctuation. */
1354:
1.36 schwarze 1355: if (NULL == head && ARGS_QWORD != ac &&
1.40 schwarze 1356: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1357: assert(NULL == body);
1358: if ( ! mdoc_word_alloc(m, line, la, p))
1359: return(0);
1360: continue;
1361: }
1362:
1363: if (NULL == head) {
1364: assert(NULL == body);
1365: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1366: return(0);
1.32 schwarze 1367: head = m->last;
1.1 kristaps 1368: }
1369:
1.32 schwarze 1370: /*
1371: * `Eo' gobbles any data into the head, but most other
1372: * macros just immediately close out and begin the body.
1373: */
1374:
1375: if (NULL == body) {
1376: assert(head);
1377: /* No check whether it's a macro! */
1378: if (MDOC_Eo == tok)
1379: if ( ! mdoc_word_alloc(m, line, la, p))
1380: return(0);
1381:
1.22 schwarze 1382: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1383: return(0);
1.22 schwarze 1384: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1385: return(0);
1.32 schwarze 1386: body = m->last;
1387:
1388: if (MDOC_Eo == tok)
1389: continue;
1390: }
1391:
1392: assert(NULL != head && NULL != body);
1393:
1.36 schwarze 1394: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1395:
1396: if (MDOC_MAX == ntok) {
1397: if ( ! mdoc_word_alloc(m, line, la, p))
1.32 schwarze 1398: return(0);
1.36 schwarze 1399: continue;
1.1 kristaps 1400: }
1.32 schwarze 1401:
1.36 schwarze 1402: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1403: return(0);
1.36 schwarze 1404: break;
1.1 kristaps 1405: }
1406:
1.32 schwarze 1407: /* Clean-up to leave in a consistent state. */
1408:
1409: if (NULL == head) {
1410: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1411: return(0);
1412: head = m->last;
1413: }
1.22 schwarze 1414:
1.32 schwarze 1415: if (NULL == body) {
1.22 schwarze 1416: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1417: return(0);
1.22 schwarze 1418: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1419: return(0);
1.32 schwarze 1420: body = m->last;
1.1 kristaps 1421: }
1422:
1.22 schwarze 1423: /* Standard appending of delimiters. */
1424:
1.37 schwarze 1425: if ( ! nl)
1.1 kristaps 1426: return(1);
1.22 schwarze 1427: return(append_delims(m, line, pos, buf));
1.1 kristaps 1428: }
1429:
1430:
1.37 schwarze 1431: /* ARGSUSED */
1.1 kristaps 1432: static int
1433: in_line_argn(MACRO_PROT_ARGS)
1434: {
1.37 schwarze 1435: int la, flushed, j, maxargs, nl;
1.36 schwarze 1436: enum margserr ac;
1437: enum margverr av;
1438: struct mdoc_arg *arg;
1439: char *p;
1440: enum mdoct ntok;
1.1 kristaps 1441:
1.37 schwarze 1442: nl = MDOC_NEWLINE & m->flags;
1443:
1.32 schwarze 1444: /*
1445: * A line macro that has a fixed number of arguments (maxargs).
1446: * Only open the scope once the first non-leading-punctuation is
1447: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1448: * keep it open until the maximum number of arguments are
1449: * exhausted.
1450: */
1.1 kristaps 1451:
1452: switch (tok) {
1453: case (MDOC_Ap):
1454: /* FALLTHROUGH */
1455: case (MDOC_No):
1456: /* FALLTHROUGH */
1457: case (MDOC_Ns):
1458: /* FALLTHROUGH */
1459: case (MDOC_Ux):
1460: maxargs = 0;
1461: break;
1.28 schwarze 1462: case (MDOC_Xr):
1463: maxargs = 2;
1464: break;
1.1 kristaps 1465: default:
1466: maxargs = 1;
1467: break;
1468: }
1469:
1.32 schwarze 1470: for (arg = NULL; ; ) {
1.22 schwarze 1471: la = *pos;
1.36 schwarze 1472: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1473:
1.36 schwarze 1474: if (ARGV_WORD == av) {
1.22 schwarze 1475: *pos = la;
1.1 kristaps 1476: break;
1477: }
1478:
1.36 schwarze 1479: if (ARGV_EOLN == av)
1.1 kristaps 1480: break;
1.36 schwarze 1481: if (ARGV_ARG == av)
1.1 kristaps 1482: continue;
1483:
1484: mdoc_argv_free(arg);
1485: return(0);
1486: }
1487:
1.32 schwarze 1488: for (flushed = j = 0; ; ) {
1.22 schwarze 1489: la = *pos;
1.36 schwarze 1490: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1491:
1.36 schwarze 1492: if (ARGS_ERROR == ac)
1.1 kristaps 1493: return(0);
1.36 schwarze 1494: if (ARGS_PUNCT == ac)
1.1 kristaps 1495: break;
1.36 schwarze 1496: if (ARGS_EOLN == ac)
1.1 kristaps 1497: break;
1498:
1.32 schwarze 1499: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1500: ARGS_QWORD != ac &&
1.40 schwarze 1501: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1502: if ( ! mdoc_word_alloc(m, line, la, p))
1503: return(0);
1504: continue;
1.40 schwarze 1505: } else if (0 == j)
1.32 schwarze 1506: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1507: return(0);
1508:
1509: if (j == maxargs && ! flushed) {
1510: if ( ! rew_elem(m, tok))
1511: return(0);
1512: flushed = 1;
1513: }
1514:
1.36 schwarze 1515: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1516:
1517: if (MDOC_MAX != ntok) {
1.22 schwarze 1518: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1519: return(0);
1520: flushed = 1;
1.36 schwarze 1521: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1522: return(0);
1.32 schwarze 1523: j++;
1.1 kristaps 1524: break;
1525: }
1526:
1527: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1528: ARGS_QWORD != ac &&
1.40 schwarze 1529: ! flushed &&
1530: DELIM_NONE != mdoc_isdelim(p)) {
1.22 schwarze 1531: if ( ! rew_elem(m, tok))
1.1 kristaps 1532: return(0);
1533: flushed = 1;
1534: }
1.28 schwarze 1535:
1536: /*
1537: * XXX: this is a hack to work around groff's ugliness
1538: * as regards `Xr' and extraneous arguments. It should
1539: * ideally be deprecated behaviour, but because this is
1540: * code is no here, it's unlikely to be removed.
1541: */
1542: if (MDOC_Xr == tok && j == maxargs) {
1.32 schwarze 1543: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.28 schwarze 1544: return(0);
1545: if ( ! rew_elem(m, MDOC_Ns))
1546: return(0);
1547: }
1548:
1.22 schwarze 1549: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1550: return(0);
1.32 schwarze 1551: j++;
1.1 kristaps 1552: }
1553:
1.32 schwarze 1554: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1555: return(0);
1556:
1557: /* Close out in a consistent state. */
1.22 schwarze 1558:
1559: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1560: return(0);
1.37 schwarze 1561: if ( ! nl)
1.1 kristaps 1562: return(1);
1.22 schwarze 1563: return(append_delims(m, line, pos, buf));
1.1 kristaps 1564: }
1565:
1566:
1567: static int
1568: in_line_eoln(MACRO_PROT_ARGS)
1569: {
1.36 schwarze 1570: int la;
1571: enum margserr ac;
1572: enum margverr av;
1573: struct mdoc_arg *arg;
1574: char *p;
1575: enum mdoct ntok;
1.1 kristaps 1576:
1577: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1578:
1.53 schwarze 1579: if (tok == MDOC_Pp)
1580: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1581:
1.22 schwarze 1582: /* Parse macro arguments. */
1.1 kristaps 1583:
1.22 schwarze 1584: for (arg = NULL; ; ) {
1.1 kristaps 1585: la = *pos;
1.36 schwarze 1586: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1587:
1.36 schwarze 1588: if (ARGV_WORD == av) {
1.1 kristaps 1589: *pos = la;
1590: break;
1591: }
1.36 schwarze 1592: if (ARGV_EOLN == av)
1.1 kristaps 1593: break;
1.36 schwarze 1594: if (ARGV_ARG == av)
1.1 kristaps 1595: continue;
1596:
1597: mdoc_argv_free(arg);
1598: return(0);
1599: }
1600:
1.22 schwarze 1601: /* Open element scope. */
1602:
1603: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1604: return(0);
1605:
1.22 schwarze 1606: /* Parse argument terms. */
1.1 kristaps 1607:
1608: for (;;) {
1609: la = *pos;
1.36 schwarze 1610: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1611:
1.36 schwarze 1612: if (ARGS_ERROR == ac)
1.1 kristaps 1613: return(0);
1.36 schwarze 1614: if (ARGS_EOLN == ac)
1.1 kristaps 1615: break;
1616:
1.36 schwarze 1617: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1618:
1.36 schwarze 1619: if (MDOC_MAX == ntok) {
1620: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1621: return(0);
1.36 schwarze 1622: continue;
1623: }
1.1 kristaps 1624:
1.36 schwarze 1625: if ( ! rew_elem(m, tok))
1.1 kristaps 1626: return(0);
1.36 schwarze 1627: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1628: }
1629:
1.22 schwarze 1630: /* Close out (no delimiters). */
1631:
1632: return(rew_elem(m, tok));
1.28 schwarze 1633: }
1634:
1635:
1636: /* ARGSUSED */
1637: static int
1638: ctx_synopsis(MACRO_PROT_ARGS)
1639: {
1.37 schwarze 1640: int nl;
1641:
1642: nl = MDOC_NEWLINE & m->flags;
1.28 schwarze 1643:
1644: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.53 schwarze 1645: if ( ! (MDOC_SYNOPSIS & m->flags))
1.28 schwarze 1646: return(in_line(m, tok, line, ppos, pos, buf));
1647:
1648: /* If we're a nested call, same place. */
1.37 schwarze 1649: if ( ! nl)
1.28 schwarze 1650: return(in_line(m, tok, line, ppos, pos, buf));
1651:
1652: /*
1653: * XXX: this will open a block scope; however, if later we end
1654: * up formatting the block scope, then child nodes will inherit
1655: * the formatting. Be careful.
1656: */
1.51 schwarze 1657: if (MDOC_Nm == tok)
1658: return(blk_full(m, tok, line, ppos, pos, buf));
1659: assert(MDOC_Vt == tok);
1.28 schwarze 1660: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.1 kristaps 1661: }
1662:
1663:
1664: /* ARGSUSED */
1665: static int
1666: obsolete(MACRO_PROT_ARGS)
1667: {
1668:
1.44 schwarze 1669: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1670: }
1671:
1672:
1.17 schwarze 1673: /*
1674: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1675: * They're unusual because they're basically free-form text until a
1676: * macro is encountered.
1677: */
1.1 kristaps 1678: static int
1.46 schwarze 1679: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1680: {
1.36 schwarze 1681: int la, pos;
1.46 schwarze 1682: enum margserr ac;
1.36 schwarze 1683: enum mdoct ntok;
1684: char *p;
1.1 kristaps 1685:
1.17 schwarze 1686: for (pos = ppos; ; ) {
1687: la = pos;
1.1 kristaps 1688:
1.46 schwarze 1689: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1690:
1.46 schwarze 1691: if (ARGS_ERROR == ac)
1.17 schwarze 1692: return(0);
1.46 schwarze 1693: if (ARGS_EOLN == ac)
1.17 schwarze 1694: break;
1.1 kristaps 1695:
1.46 schwarze 1696: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1697:
1.36 schwarze 1698: if (MDOC_MAX == ntok) {
1699: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1700: return(0);
1.36 schwarze 1701: continue;
1702: }
1.1 kristaps 1703:
1.36 schwarze 1704: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1705: return(0);
1.36 schwarze 1706: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1707: }
1708:
1709: return(1);
1710: }
1.17 schwarze 1711:
1712:
1.46 schwarze 1713: /* ARGSUSED */
1714: static int
1715: phrase_ta(MACRO_PROT_ARGS)
1716: {
1717: int la;
1718: enum mdoct ntok;
1719: enum margserr ac;
1720: char *p;
1721:
1722: /*
1723: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1724: * it should simply error out with ARGSLOST.
1725: */
1726:
1727: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1728: return(0);
1729: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1730: return(0);
1731:
1732: for (;;) {
1733: la = *pos;
1734: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1735:
1736: if (ARGS_ERROR == ac)
1737: return(0);
1738: if (ARGS_EOLN == ac)
1739: break;
1740:
1741: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1742:
1743: if (MDOC_MAX == ntok) {
1744: if ( ! mdoc_word_alloc(m, line, la, p))
1745: return(0);
1746: continue;
1747: }
1748:
1749: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1750: return(0);
1751: return(append_delims(m, line, pos, buf));
1752: }
1753:
1754: return(1);
1755: }
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