Annotation of mandoc/mdoc_macro.c, Revision 1.90
1.90 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.89 2010/07/01 21:12:00 schwarze Exp $ */
1.1 kristaps 2: /*
1.80 kristaps 3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 8: *
1.8 kristaps 9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 16: */
1.40 kristaps 17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.1 kristaps 21: #include <assert.h>
22: #include <ctype.h>
23: #include <stdlib.h>
24: #include <stdio.h>
25: #include <string.h>
1.38 kristaps 26: #include <time.h>
1.1 kristaps 27:
1.68 kristaps 28: #include "mandoc.h"
1.1 kristaps 29: #include "libmdoc.h"
1.64 kristaps 30: #include "libmandoc.h"
1.1 kristaps 31:
1.84 schwarze 32: enum rew { /* see rew_dohalt() */
33: REWIND_NONE,
34: REWIND_THIS,
35: REWIND_MORE,
36: REWIND_LATER,
37: REWIND_ERROR,
1.51 kristaps 38: };
1.1 kristaps 39:
1.53 kristaps 40: static int blk_full(MACRO_PROT_ARGS);
41: static int blk_exp_close(MACRO_PROT_ARGS);
42: static int blk_part_exp(MACRO_PROT_ARGS);
43: static int blk_part_imp(MACRO_PROT_ARGS);
44: static int ctx_synopsis(MACRO_PROT_ARGS);
45: static int in_line_eoln(MACRO_PROT_ARGS);
46: static int in_line_argn(MACRO_PROT_ARGS);
47: static int in_line(MACRO_PROT_ARGS);
48: static int obsolete(MACRO_PROT_ARGS);
1.75 kristaps 49: static int phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 50:
51: static int append_delims(struct mdoc *,
52: int, int *, char *);
1.58 kristaps 53: static enum mdoct lookup(enum mdoct, const char *);
1.53 kristaps 54: static enum mdoct lookup_raw(const char *);
1.85 schwarze 55: static int make_pending(struct mdoc_node *, enum mdoct,
1.83 schwarze 56: struct mdoc *, int, int);
1.82 kristaps 57: static int phrase(struct mdoc *, int, int, char *);
1.53 kristaps 58: static enum mdoct rew_alt(enum mdoct);
59: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
60: const struct mdoc_node *);
61: static int rew_elem(struct mdoc *, enum mdoct);
62: static int rew_last(struct mdoc *,
63: const struct mdoc_node *);
64: static int rew_sub(enum mdoc_type, struct mdoc *,
65: enum mdoct, int, int);
1.1 kristaps 66:
67: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.13 kristaps 68: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
1.1 kristaps 69: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
70: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
71: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
72: { blk_full, 0 }, /* Sh */
73: { blk_full, 0 }, /* Ss */
1.21 kristaps 74: { in_line_eoln, 0 }, /* Pp */
1.1 kristaps 75: { blk_part_imp, MDOC_PARSED }, /* D1 */
76: { blk_part_imp, MDOC_PARSED }, /* Dl */
77: { blk_full, MDOC_EXPLICIT }, /* Bd */
78: { blk_exp_close, MDOC_EXPLICIT }, /* Ed */
79: { blk_full, MDOC_EXPLICIT }, /* Bl */
80: { blk_exp_close, MDOC_EXPLICIT }, /* El */
81: { blk_full, MDOC_PARSED }, /* It */
82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.10 kristaps 83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.23 kristaps 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
1.1 kristaps 86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
90: { in_line_eoln, 0 }, /* Ex */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
92: { in_line_eoln, 0 }, /* Fd */
93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
1.11 kristaps 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.18 kristaps 97: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.19 kristaps 99: { blk_full, 0 }, /* Nd */
1.88 schwarze 100: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 101: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
102: { obsolete, 0 }, /* Ot */
103: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
104: { in_line_eoln, 0 }, /* Rv */
105: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
106: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.41 kristaps 107: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 108: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.1 kristaps 109: { in_line_eoln, 0 }, /* %A */
110: { in_line_eoln, 0 }, /* %B */
111: { in_line_eoln, 0 }, /* %D */
112: { in_line_eoln, 0 }, /* %I */
113: { in_line_eoln, 0 }, /* %J */
114: { in_line_eoln, 0 }, /* %N */
115: { in_line_eoln, 0 }, /* %O */
116: { in_line_eoln, 0 }, /* %P */
117: { in_line_eoln, 0 }, /* %R */
118: { in_line_eoln, 0 }, /* %T */
119: { in_line_eoln, 0 }, /* %V */
120: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
121: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
122: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
123: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
124: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
125: { blk_full, MDOC_EXPLICIT }, /* Bf */
126: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
127: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
128: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
129: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
130: { in_line_eoln, 0 }, /* Db */
131: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
132: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
133: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
134: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
135: { blk_exp_close, MDOC_EXPLICIT }, /* Ef */
136: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
137: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 139: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.1 kristaps 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* No */
141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ns */
142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
144: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.52 kristaps 145: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.1 kristaps 146: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
147: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
148: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
149: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
150: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
151: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
152: { blk_exp_close, MDOC_EXPLICIT }, /* Re */
153: { blk_full, MDOC_EXPLICIT }, /* Rs */
154: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
155: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
156: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
157: { in_line_eoln, 0 }, /* Sm */
158: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
159: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
160: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
161: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
162: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
163: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
164: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
165: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
166: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
167: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
168: { blk_full, MDOC_EXPLICIT }, /* Bk */
169: { blk_exp_close, MDOC_EXPLICIT }, /* Ek */
170: { in_line_eoln, 0 }, /* Bt */
171: { in_line_eoln, 0 }, /* Hf */
172: { obsolete, 0 }, /* Fr */
173: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 174: { in_line, 0 }, /* Lb */
1.21 kristaps 175: { in_line_eoln, 0 }, /* Lp */
1.12 kristaps 176: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
177: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
1.1 kristaps 178: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
179: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
180: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
181: { in_line_eoln, 0 }, /* %C */
182: { obsolete, 0 }, /* Es */
183: { obsolete, 0 }, /* En */
184: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
185: { in_line_eoln, 0 }, /* %Q */
1.20 kristaps 186: { in_line_eoln, 0 }, /* br */
187: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 188: { in_line_eoln, 0 }, /* %U */
1.75 kristaps 189: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
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
1.32 kristaps 201: mdoc_macroend(struct mdoc *m)
1.1 kristaps 202: {
203: struct mdoc_node *n;
204:
205: /* Scan for open explicit scopes. */
206:
1.32 kristaps 207: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 208:
209: for ( ; n; n = n->parent) {
210: if (MDOC_BLOCK != n->type)
211: continue;
212: if ( ! (MDOC_EXPLICIT & mdoc_macros[n->tok].flags))
213: continue;
1.68 kristaps 214: mdoc_nmsg(m, n, MANDOCERR_SYNTSCOPE);
215: return(0);
1.1 kristaps 216: }
217:
1.32 kristaps 218: /* Rewind to the first. */
219:
220: return(rew_last(m, m->first));
1.1 kristaps 221: }
222:
1.32 kristaps 223:
224: /*
225: * Look up a macro from within a subsequent context.
226: */
1.53 kristaps 227: static enum mdoct
1.58 kristaps 228: lookup(enum mdoct from, const char *p)
1.28 kristaps 229: {
1.36 kristaps 230: /* FIXME: make -diag lists be un-PARSED. */
1.28 kristaps 231:
232: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
233: return(MDOC_MAX);
1.35 kristaps 234: return(lookup_raw(p));
1.28 kristaps 235: }
236:
237:
1.32 kristaps 238: /*
239: * Lookup a macro following the initial line macro.
240: */
1.53 kristaps 241: static enum mdoct
1.35 kristaps 242: lookup_raw(const char *p)
1.1 kristaps 243: {
1.58 kristaps 244: enum mdoct res;
1.1 kristaps 245:
1.34 kristaps 246: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.28 kristaps 247: return(MDOC_MAX);
248: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 249: return(res);
250: return(MDOC_MAX);
251: }
252:
253:
254: static int
1.32 kristaps 255: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 256: {
257:
258: assert(to);
259: mdoc->next = MDOC_NEXT_SIBLING;
260:
261: /* LINTED */
262: while (mdoc->last != to) {
263: if ( ! mdoc_valid_post(mdoc))
264: return(0);
265: if ( ! mdoc_action_post(mdoc))
266: return(0);
267: mdoc->last = mdoc->last->parent;
268: assert(mdoc->last);
269: }
270:
271: if ( ! mdoc_valid_post(mdoc))
272: return(0);
273: return(mdoc_action_post(mdoc));
274: }
275:
276:
1.32 kristaps 277: /*
1.84 schwarze 278: * For a block closing macro, return the corresponding opening one.
279: * Otherwise, return the macro itself.
1.32 kristaps 280: */
1.47 kristaps 281: static enum mdoct
282: rew_alt(enum mdoct tok)
1.1 kristaps 283: {
284: switch (tok) {
285: case (MDOC_Ac):
286: return(MDOC_Ao);
287: case (MDOC_Bc):
288: return(MDOC_Bo);
289: case (MDOC_Brc):
290: return(MDOC_Bro);
291: case (MDOC_Dc):
292: return(MDOC_Do);
293: case (MDOC_Ec):
294: return(MDOC_Eo);
295: case (MDOC_Ed):
296: return(MDOC_Bd);
297: case (MDOC_Ef):
298: return(MDOC_Bf);
299: case (MDOC_Ek):
300: return(MDOC_Bk);
301: case (MDOC_El):
302: return(MDOC_Bl);
303: case (MDOC_Fc):
304: return(MDOC_Fo);
305: case (MDOC_Oc):
306: return(MDOC_Oo);
307: case (MDOC_Pc):
308: return(MDOC_Po);
309: case (MDOC_Qc):
310: return(MDOC_Qo);
311: case (MDOC_Re):
312: return(MDOC_Rs);
313: case (MDOC_Sc):
314: return(MDOC_So);
315: case (MDOC_Xc):
316: return(MDOC_Xo);
317: default:
1.84 schwarze 318: return(tok);
1.1 kristaps 319: }
320: /* NOTREACHED */
321: }
322:
323:
1.84 schwarze 324: /*
325: * Rewinding to tok, how do we have to handle *p?
326: * REWIND_NONE: *p would delimit tok, but no tok scope is open
327: * inside *p, so there is no need to rewind anything at all.
328: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
329: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
330: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
331: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 332: */
1.51 kristaps 333: static enum rew
1.47 kristaps 334: rew_dohalt(enum mdoct tok, enum mdoc_type type,
335: const struct mdoc_node *p)
1.1 kristaps 336: {
337:
1.86 schwarze 338: /*
339: * No matching token, no delimiting block, no broken block.
340: * This can happen when full implicit macros are called for
341: * the first time but try to rewind their previous
342: * instance anyway.
343: */
1.1 kristaps 344: if (MDOC_ROOT == p->type)
1.84 schwarze 345: return(MDOC_BLOCK == type &&
346: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
347: REWIND_ERROR : REWIND_NONE);
1.86 schwarze 348:
349: /*
350: * When starting to rewind, skip plain text
351: * and nodes that have already been rewound.
352: */
1.84 schwarze 353: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
354: return(REWIND_MORE);
355:
1.86 schwarze 356: /*
357: * The easiest case: Found a matching token.
358: * This applies to both blocks and elements.
359: */
1.84 schwarze 360: tok = rew_alt(tok);
361: if (tok == p->tok)
362: return(p->end ? REWIND_NONE :
363: type == p->type ? REWIND_THIS : REWIND_MORE);
364:
1.86 schwarze 365: /*
366: * While elements do require rewinding for themselves,
367: * they never affect rewinding of other nodes.
368: */
1.84 schwarze 369: if (MDOC_ELEM == p->type)
370: return(REWIND_MORE);
1.1 kristaps 371:
1.86 schwarze 372: /*
373: * Blocks delimited by our target token get REWIND_MORE.
374: * Blocks delimiting our target token get REWIND_NONE.
375: */
1.1 kristaps 376: switch (tok) {
1.84 schwarze 377: case (MDOC_Bl):
378: if (MDOC_It == p->tok)
379: return(REWIND_MORE);
1.1 kristaps 380: break;
381: case (MDOC_It):
382: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.84 schwarze 383: return(REWIND_NONE);
1.1 kristaps 384: break;
1.84 schwarze 385: /*
386: * XXX Badly nested block handling still fails badly
387: * when one block is breaking two blocks of the same type.
388: * This is an incomplete and extremely ugly workaround,
389: * required to let the OpenBSD tree build.
390: */
391: case (MDOC_Oo):
392: if (MDOC_Op == p->tok)
393: return(REWIND_MORE);
1.1 kristaps 394: break;
1.88 schwarze 395: case (MDOC_Nm):
396: return(REWIND_NONE);
1.19 kristaps 397: case (MDOC_Nd):
398: /* FALLTHROUGH */
1.1 kristaps 399: case (MDOC_Ss):
400: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.84 schwarze 401: return(REWIND_NONE);
1.1 kristaps 402: /* FALLTHROUGH */
403: case (MDOC_Sh):
1.84 schwarze 404: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
405: MDOC_Sh == p->tok)
406: return(REWIND_MORE);
1.1 kristaps 407: break;
408: default:
409: break;
410: }
411:
1.86 schwarze 412: /*
413: * Default block rewinding rules.
1.88 schwarze 414: * In particular, always skip block end markers,
415: * and let all blocks rewind Nm children.
1.86 schwarze 416: */
1.88 schwarze 417: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
418: (MDOC_BLOCK == p->type &&
1.86 schwarze 419: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
420: return(REWIND_MORE);
421:
422: /*
423: * Partial blocks allow delayed rewinding by default.
424: */
425: if (&blk_full != mdoc_macros[tok].fp)
426: return (REWIND_LATER);
427:
428: /*
429: * Full blocks can only be rewound when matching
430: * or when there is an explicit rule.
431: */
432: return(REWIND_ERROR);
1.1 kristaps 433: }
434:
435:
436: static int
1.47 kristaps 437: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 438: {
439: struct mdoc_node *n;
440:
441: n = mdoc->last;
442: if (MDOC_ELEM != n->type)
443: n = n->parent;
444: assert(MDOC_ELEM == n->type);
445: assert(tok == n->tok);
446:
447: return(rew_last(mdoc, n));
448: }
449:
450:
1.83 schwarze 451: /*
452: * We are trying to close a block identified by tok,
453: * but the child block *broken is still open.
454: * Thus, postpone closing the tok block
455: * until the rew_sub call closing *broken.
456: */
457: static int
458: make_pending(struct mdoc_node *broken, enum mdoct tok,
459: struct mdoc *m, int line, int ppos)
460: {
461: struct mdoc_node *breaker;
462:
463: /*
464: * Iterate backwards, searching for the block matching tok,
465: * that is, the block breaking the *broken block.
466: */
467: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
468:
469: /*
470: * If the *broken block had already been broken before
471: * and we encounter its breaker, make the tok block
472: * pending on the inner breaker.
473: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
474: * becomes "[A broken=[B [C->B B] tok=A] C]"
475: * and finally "[A [B->A [C->B B] A] C]".
476: */
477: if (breaker == broken->pending) {
478: broken = breaker;
479: continue;
480: }
481:
1.84 schwarze 482: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.83 schwarze 483: continue;
484: if (MDOC_BODY == broken->type)
485: broken = broken->parent;
486:
487: /*
488: * Found the breaker.
489: * If another, outer breaker is already pending on
490: * the *broken block, we must not clobber the link
491: * to the outer breaker, but make it pending on the
492: * new, now inner breaker.
493: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
494: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
495: * and finally "[A [B->A [C->B A] B] C]".
496: */
497: if (broken->pending) {
498: struct mdoc_node *taker;
499:
500: /*
501: * If the breaker had also been broken before,
502: * it cannot take on the outer breaker itself,
503: * but must hand it on to its own breakers.
504: * Graphically, this is the following situation:
505: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
506: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
507: */
508: taker = breaker;
509: while (taker->pending)
510: taker = taker->pending;
511: taker->pending = broken->pending;
512: }
513: broken->pending = breaker;
1.88 schwarze 514: mdoc_vmsg(m, MANDOCERR_SCOPENEST, line, ppos,
515: "%s breaks %s", mdoc_macronames[tok],
516: mdoc_macronames[broken->tok]);
1.83 schwarze 517: return(1);
518: }
519:
520: /*
521: * Found no matching block for tok.
522: * Are you trying to close a block that is not open?
1.84 schwarze 523: * XXX Make this non-fatal.
1.83 schwarze 524: */
525: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE);
526: return(0);
527: }
528:
1.84 schwarze 529:
1.1 kristaps 530: static int
1.32 kristaps 531: rew_sub(enum mdoc_type t, struct mdoc *m,
1.47 kristaps 532: enum mdoct tok, int line, int ppos)
1.1 kristaps 533: {
534: struct mdoc_node *n;
535:
1.84 schwarze 536: n = m->last;
537: while (n) {
538: switch (rew_dohalt(tok, t, n)) {
539: case (REWIND_NONE):
540: return(1);
541: case (REWIND_THIS):
542: break;
543: case (REWIND_MORE):
544: n = n->parent;
545: continue;
546: case (REWIND_LATER):
547: return(make_pending(n, tok, m, line, ppos));
548: case (REWIND_ERROR):
549: /* XXX Make this non-fatal. */
1.88 schwarze 550: mdoc_vmsg(m, MANDOCERR_SCOPEFATAL, line, ppos,
551: "%s cannot break %s", mdoc_macronames[tok],
552: mdoc_macronames[n->tok]);
1.84 schwarze 553: return 0;
1.32 kristaps 554: }
1.84 schwarze 555: break;
1.1 kristaps 556: }
557:
558: assert(n);
1.47 kristaps 559: if ( ! rew_last(m, n))
560: return(0);
561:
562: /*
1.83 schwarze 563: * The current block extends an enclosing block.
564: * Now that the current block ends, close the enclosing block, too.
1.47 kristaps 565: */
1.83 schwarze 566: while (NULL != (n = n->pending)) {
1.47 kristaps 567: if ( ! rew_last(m, n))
568: return(0);
1.83 schwarze 569: if (MDOC_HEAD == n->type &&
570: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.47 kristaps 571: return(0);
572: }
573:
574: return(1);
1.1 kristaps 575: }
576:
577:
578: static int
1.66 kristaps 579: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 580: {
1.66 kristaps 581: int la;
1.55 kristaps 582: enum margserr ac;
1.1 kristaps 583: char *p;
584:
1.66 kristaps 585: if ('\0' == buf[*pos])
1.1 kristaps 586: return(1);
587:
588: for (;;) {
1.66 kristaps 589: la = *pos;
590: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 591:
1.53 kristaps 592: if (ARGS_ERROR == ac)
1.1 kristaps 593: return(0);
1.53 kristaps 594: else if (ARGS_EOLN == ac)
1.1 kristaps 595: break;
1.66 kristaps 596:
1.67 schwarze 597: assert(DELIM_NONE != mdoc_isdelim(p));
1.66 kristaps 598: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 599: return(0);
1.66 kristaps 600:
601: /*
602: * If we encounter end-of-sentence symbols, then trigger
603: * the double-space.
604: *
605: * XXX: it's easy to allow this to propogate outward to
606: * the last symbol, such that `. )' will cause the
607: * correct double-spacing. However, (1) groff isn't
608: * smart enough to do this and (2) it would require
609: * knowing which symbols break this behaviour, for
610: * example, `. ;' shouldn't propogate the double-space.
611: */
612: if (mandoc_eos(p, strlen(p)))
613: m->last->flags |= MDOC_EOS;
1.1 kristaps 614: }
615:
616: return(1);
617: }
618:
619:
620: /*
621: * Close out block partial/full explicit.
622: */
623: static int
624: blk_exp_close(MACRO_PROT_ARGS)
625: {
1.83 schwarze 626: struct mdoc_node *body; /* Our own body. */
627: struct mdoc_node *later; /* A sub-block starting later. */
628: struct mdoc_node *n; /* For searching backwards. */
629:
1.60 kristaps 630: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 631: enum margserr ac;
1.83 schwarze 632: enum mdoct atok, ntok;
1.1 kristaps 633: char *p;
634:
1.60 kristaps 635: nl = MDOC_NEWLINE & m->flags;
636:
1.1 kristaps 637: switch (tok) {
638: case (MDOC_Ec):
639: maxargs = 1;
640: break;
641: default:
642: maxargs = 0;
643: break;
644: }
645:
1.83 schwarze 646: /*
647: * Search backwards for beginnings of blocks,
648: * both of our own and of pending sub-blocks.
649: */
650: atok = rew_alt(tok);
651: body = later = NULL;
652: for (n = m->last; n; n = n->parent) {
653: if (MDOC_VALID & n->flags)
654: continue;
655:
656: /* Remember the start of our own body. */
657: if (MDOC_BODY == n->type && atok == n->tok) {
1.87 kristaps 658: if (ENDBODY_NOT == n->end)
1.83 schwarze 659: body = n;
660: continue;
661: }
662:
1.88 schwarze 663: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.83 schwarze 664: continue;
665: if (atok == n->tok) {
666: assert(body);
667:
668: /*
669: * Found the start of our own block.
670: * When there is no pending sub block,
671: * just proceed to closing out.
672: */
673: if (NULL == later)
674: break;
675:
676: /*
677: * When there is a pending sub block,
678: * postpone closing out the current block
679: * until the rew_sub() closing out the sub-block.
680: */
681: if ( ! make_pending(later, tok, m, line, ppos))
682: return(0);
683:
684: /*
685: * Mark the place where the formatting - but not
686: * the scope - of the current block ends.
687: */
688: if ( ! mdoc_endbody_alloc(m, line, ppos,
689: atok, body, ENDBODY_SPACE))
690: return(0);
691: break;
692: }
693:
694: /*
695: * When finding an open sub block, remember the last
696: * open explicit block, or, in case there are only
697: * implicit ones, the first open implicit block.
698: */
699: if (later &&
700: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
701: continue;
702: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags) {
703: assert( ! (MDOC_ACTED & n->flags));
704: later = n;
705: }
706: }
707:
1.1 kristaps 708: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.68 kristaps 709: /* FIXME: do this in validate */
1.22 kristaps 710: if (buf[*pos])
1.68 kristaps 711: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 712: return(0);
1.22 kristaps 713:
1.32 kristaps 714: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 kristaps 715: return(0);
1.32 kristaps 716: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 717: }
718:
1.32 kristaps 719: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 720: return(0);
721:
1.83 schwarze 722: if (NULL == later && maxargs > 0)
1.32 kristaps 723: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 724: return(0);
725:
1.27 kristaps 726: for (flushed = j = 0; ; j++) {
1.1 kristaps 727: lastarg = *pos;
728:
729: if (j == maxargs && ! flushed) {
1.32 kristaps 730: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 731: return(0);
732: flushed = 1;
733: }
734:
1.53 kristaps 735: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 736:
1.53 kristaps 737: if (ARGS_ERROR == ac)
1.1 kristaps 738: return(0);
1.53 kristaps 739: if (ARGS_PUNCT == ac)
1.1 kristaps 740: break;
1.53 kristaps 741: if (ARGS_EOLN == ac)
1.1 kristaps 742: break;
743:
1.54 kristaps 744: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
745:
746: if (MDOC_MAX == ntok) {
747: if ( ! mdoc_word_alloc(m, line, lastarg, p))
1.1 kristaps 748: return(0);
1.54 kristaps 749: continue;
750: }
1.1 kristaps 751:
1.54 kristaps 752: if ( ! flushed) {
753: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
754: return(0);
755: flushed = 1;
756: }
1.82 kristaps 757: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 758: return(0);
1.54 kristaps 759: break;
1.1 kristaps 760: }
761:
1.32 kristaps 762: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 763: return(0);
764:
1.60 kristaps 765: if ( ! nl)
1.1 kristaps 766: return(1);
1.32 kristaps 767: return(append_delims(m, line, pos, buf));
1.1 kristaps 768: }
769:
770:
771: static int
772: in_line(MACRO_PROT_ARGS)
773: {
1.70 kristaps 774: int la, scope, cnt, nc, nl;
1.56 kristaps 775: enum margverr av;
1.53 kristaps 776: enum mdoct ntok;
1.55 kristaps 777: enum margserr ac;
1.67 schwarze 778: enum mdelim d;
1.53 kristaps 779: struct mdoc_arg *arg;
780: char *p;
1.1 kristaps 781:
1.60 kristaps 782: nl = MDOC_NEWLINE & m->flags;
783:
1.4 kristaps 784: /*
785: * Whether we allow ignored elements (those without content,
786: * usually because of reserved words) to squeak by.
787: */
1.45 kristaps 788:
1.4 kristaps 789: switch (tok) {
1.26 kristaps 790: case (MDOC_An):
791: /* FALLTHROUGH */
792: case (MDOC_Ar):
1.4 kristaps 793: /* FALLTHROUGH */
794: case (MDOC_Fl):
795: /* FALLTHROUGH */
1.12 kristaps 796: case (MDOC_Lk):
797: /* FALLTHROUGH */
1.26 kristaps 798: case (MDOC_Nm):
799: /* FALLTHROUGH */
1.25 kristaps 800: case (MDOC_Pa):
1.4 kristaps 801: nc = 1;
802: break;
803: default:
804: nc = 0;
805: break;
806: }
807:
1.27 kristaps 808: for (arg = NULL;; ) {
1.1 kristaps 809: la = *pos;
1.56 kristaps 810: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 811:
1.56 kristaps 812: if (ARGV_WORD == av) {
1.1 kristaps 813: *pos = la;
814: break;
815: }
1.56 kristaps 816: if (ARGV_EOLN == av)
1.1 kristaps 817: break;
1.56 kristaps 818: if (ARGV_ARG == av)
1.1 kristaps 819: continue;
820:
821: mdoc_argv_free(arg);
822: return(0);
823: }
824:
1.70 kristaps 825: for (cnt = scope = 0;; ) {
1.1 kristaps 826: la = *pos;
1.53 kristaps 827: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 828:
1.53 kristaps 829: if (ARGS_ERROR == ac)
1.1 kristaps 830: return(0);
1.53 kristaps 831: if (ARGS_EOLN == ac)
1.1 kristaps 832: break;
1.53 kristaps 833: if (ARGS_PUNCT == ac)
1.1 kristaps 834: break;
835:
1.53 kristaps 836: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 837:
1.4 kristaps 838: /*
839: * In this case, we've located a submacro and must
840: * execute it. Close out scope, if open. If no
841: * elements have been generated, either create one (nc)
842: * or raise a warning.
843: */
1.1 kristaps 844:
1.53 kristaps 845: if (MDOC_MAX != ntok) {
1.70 kristaps 846: if (scope && ! rew_elem(m, tok))
1.1 kristaps 847: return(0);
1.4 kristaps 848: if (nc && 0 == cnt) {
1.32 kristaps 849: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 850: return(0);
1.32 kristaps 851: if ( ! rew_last(m, m->last))
1.12 kristaps 852: return(0);
1.7 kristaps 853: } else if ( ! nc && 0 == cnt) {
854: mdoc_argv_free(arg);
1.68 kristaps 855: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 856: return(0);
1.7 kristaps 857: }
1.82 kristaps 858: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 859: return(0);
1.60 kristaps 860: if ( ! nl)
1.1 kristaps 861: return(1);
1.32 kristaps 862: return(append_delims(m, line, pos, buf));
1.29 kristaps 863: }
1.1 kristaps 864:
1.4 kristaps 865: /*
866: * Non-quote-enclosed punctuation. Set up our scope, if
867: * a word; rewind the scope, if a delimiter; then append
868: * the word.
869: */
1.1 kristaps 870:
1.67 schwarze 871: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 872:
1.70 kristaps 873: if (DELIM_NONE != d) {
874: /*
875: * If we encounter closing punctuation, no word
876: * has been omitted, no scope is open, and we're
877: * allowed to have an empty element, then start
878: * a new scope. `Ar', `Fl', and `Li', only do
879: * this once per invocation. There may be more
880: * of these (all of them?).
881: */
882: if (0 == cnt && (nc || MDOC_Li == tok) &&
883: DELIM_CLOSE == d && ! scope) {
884: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
885: return(0);
886: if (MDOC_Ar == tok || MDOC_Li == tok ||
887: MDOC_Fl == tok)
888: cnt++;
889: scope = 1;
890: }
891: /*
892: * Close out our scope, if one is open, before
893: * any punctuation.
894: */
895: if (scope && ! rew_elem(m, tok))
1.1 kristaps 896: return(0);
1.70 kristaps 897: scope = 0;
898: } else if ( ! scope) {
1.32 kristaps 899: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 900: return(0);
1.70 kristaps 901: scope = 1;
1.1 kristaps 902: }
903:
1.67 schwarze 904: if (DELIM_NONE == d)
1.3 kristaps 905: cnt++;
1.32 kristaps 906: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 907: return(0);
1.39 kristaps 908:
909: /*
910: * `Fl' macros have their scope re-opened with each new
911: * word so that the `-' can be added to each one without
912: * having to parse out spaces.
913: */
1.70 kristaps 914: if (scope && MDOC_Fl == tok) {
1.39 kristaps 915: if ( ! rew_elem(m, tok))
916: return(0);
1.70 kristaps 917: scope = 0;
1.39 kristaps 918: }
1.1 kristaps 919: }
920:
1.70 kristaps 921: if (scope && ! rew_elem(m, tok))
1.1 kristaps 922: return(0);
1.4 kristaps 923:
924: /*
925: * If no elements have been collected and we're allowed to have
926: * empties (nc), open a scope and close it out. Otherwise,
927: * raise a warning.
928: */
1.45 kristaps 929:
1.4 kristaps 930: if (nc && 0 == cnt) {
1.32 kristaps 931: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 932: return(0);
1.32 kristaps 933: if ( ! rew_last(m, m->last))
1.12 kristaps 934: return(0);
1.7 kristaps 935: } else if ( ! nc && 0 == cnt) {
936: mdoc_argv_free(arg);
1.68 kristaps 937: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 938: return(0);
1.7 kristaps 939: }
1.4 kristaps 940:
1.60 kristaps 941: if ( ! nl)
1.1 kristaps 942: return(1);
1.32 kristaps 943: return(append_delims(m, line, pos, buf));
1.1 kristaps 944: }
945:
946:
947: static int
948: blk_full(MACRO_PROT_ARGS)
949: {
1.63 kristaps 950: int la, nl;
1.1 kristaps 951: struct mdoc_arg *arg;
1.45 kristaps 952: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 953: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 954: struct mdoc_node *n;
1.74 kristaps 955: enum mdoc_type mtt;
1.53 kristaps 956: enum mdoct ntok;
1.59 kristaps 957: enum margserr ac, lac;
1.56 kristaps 958: enum margverr av;
1.1 kristaps 959: char *p;
960:
1.63 kristaps 961: nl = MDOC_NEWLINE & m->flags;
962:
1.45 kristaps 963: /* Close out prior implicit scope. */
1.19 kristaps 964:
1.1 kristaps 965: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.32 kristaps 966: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 967: return(0);
1.32 kristaps 968: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 969: return(0);
970: }
971:
1.45 kristaps 972: /*
973: * This routine accomodates implicitly- and explicitly-scoped
974: * macro openings. Implicit ones first close out prior scope
975: * (seen above). Delay opening the head until necessary to
976: * allow leading punctuation to print. Special consideration
977: * for `It -column', which has phrase-part syntax instead of
978: * regular child nodes.
979: */
980:
1.1 kristaps 981: for (arg = NULL;; ) {
1.45 kristaps 982: la = *pos;
1.56 kristaps 983: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 984:
1.56 kristaps 985: if (ARGV_WORD == av) {
1.45 kristaps 986: *pos = la;
1.1 kristaps 987: break;
988: }
989:
1.56 kristaps 990: if (ARGV_EOLN == av)
1.1 kristaps 991: break;
1.56 kristaps 992: if (ARGV_ARG == av)
1.1 kristaps 993: continue;
994:
995: mdoc_argv_free(arg);
996: return(0);
997: }
998:
1.32 kristaps 999: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1000: return(0);
1001:
1.49 kristaps 1002: head = body = NULL;
1.1 kristaps 1003:
1.45 kristaps 1004: /*
1005: * The `Nd' macro has all arguments in its body: it's a hybrid
1006: * of block partial-explicit and full-implicit. Stupid.
1007: */
1.19 kristaps 1008:
1.45 kristaps 1009: if (MDOC_Nd == tok) {
1010: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1011: return(0);
1012: head = m->last;
1.32 kristaps 1013: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.19 kristaps 1014: return(0);
1.32 kristaps 1015: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.19 kristaps 1016: return(0);
1.49 kristaps 1017: body = m->last;
1.19 kristaps 1018: }
1019:
1.59 kristaps 1020: ac = ARGS_ERROR;
1021:
1.62 kristaps 1022: for ( ; ; ) {
1.45 kristaps 1023: la = *pos;
1.75 kristaps 1024: /* Initialise last-phrase-type with ARGS_PEND. */
1025: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.53 kristaps 1026: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.89 schwarze 1027:
1028: if (ARGS_PUNCT == ac)
1029: break;
1.1 kristaps 1030:
1.53 kristaps 1031: if (ARGS_ERROR == ac)
1.1 kristaps 1032: return(0);
1.75 kristaps 1033:
1034: if (ARGS_EOLN == ac) {
1035: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1036: break;
1037: /*
1038: * This is necessary: if the last token on a
1039: * line is a `Ta' or tab, then we'll get
1040: * ARGS_EOLN, so we must be smart enough to
1041: * reopen our scope if the last parse was a
1042: * phrase or partial phrase.
1043: */
1044: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1045: return(0);
1046: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1047: return(0);
1048: body = m->last;
1.1 kristaps 1049: break;
1.75 kristaps 1050: }
1.45 kristaps 1051:
1.73 kristaps 1052: /*
1053: * Emit leading punctuation (i.e., punctuation before
1054: * the MDOC_HEAD) for non-phrase types.
1055: */
1.45 kristaps 1056:
1.59 kristaps 1057: if (NULL == head &&
1.71 kristaps 1058: ARGS_PEND != ac &&
1.59 kristaps 1059: ARGS_PHRASE != ac &&
1.57 kristaps 1060: ARGS_PPHRASE != ac &&
1.53 kristaps 1061: ARGS_QWORD != ac &&
1.67 schwarze 1062: DELIM_OPEN == mdoc_isdelim(p)) {
1.45 kristaps 1063: if ( ! mdoc_word_alloc(m, line, la, p))
1064: return(0);
1065: continue;
1066: }
1067:
1.74 kristaps 1068: /* Open a head if one hasn't been opened. */
1.45 kristaps 1069:
1.74 kristaps 1070: if (NULL == head) {
1.45 kristaps 1071: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1072: return(0);
1073: head = m->last;
1074: }
1075:
1.72 kristaps 1076: if (ARGS_PHRASE == ac ||
1077: ARGS_PEND == ac ||
1078: ARGS_PPHRASE == ac) {
1.73 kristaps 1079: /*
1.74 kristaps 1080: * If we haven't opened a body yet, rewind the
1081: * head; if we have, rewind that instead.
1082: */
1083:
1084: mtt = body ? MDOC_BODY : MDOC_HEAD;
1085: if ( ! rew_sub(mtt, m, tok, line, ppos))
1086: return(0);
1087:
1088: /* Then allocate our body context. */
1089:
1090: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1091: return(0);
1092: body = m->last;
1093:
1094: /*
1.73 kristaps 1095: * Process phrases: set whether we're in a
1096: * partial-phrase (this effects line handling)
1097: * then call down into the phrase parser.
1098: */
1.74 kristaps 1099:
1.65 kristaps 1100: if (ARGS_PPHRASE == ac)
1101: m->flags |= MDOC_PPHRASE;
1.71 kristaps 1102: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1103: m->flags |= MDOC_PPHRASE;
1104:
1.82 kristaps 1105: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1106: return(0);
1.71 kristaps 1107:
1.65 kristaps 1108: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1109: continue;
1110: }
1111:
1.54 kristaps 1112: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1113:
1114: if (MDOC_MAX == ntok) {
1.53 kristaps 1115: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1116: return(0);
1.53 kristaps 1117: continue;
1.45 kristaps 1118: }
1.53 kristaps 1119:
1.82 kristaps 1120: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.45 kristaps 1121: return(0);
1.53 kristaps 1122: break;
1.45 kristaps 1123: }
1.1 kristaps 1124:
1.45 kristaps 1125: if (NULL == head) {
1126: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1127: return(0);
1.45 kristaps 1128: head = m->last;
1.1 kristaps 1129: }
1130:
1.63 kristaps 1131: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1132: return(0);
1.19 kristaps 1133:
1.49 kristaps 1134: /* If we've already opened our body, exit now. */
1.45 kristaps 1135:
1.49 kristaps 1136: if (NULL != body)
1.77 kristaps 1137: goto out;
1.19 kristaps 1138:
1.47 kristaps 1139: /*
1.49 kristaps 1140: * If there is an open (i.e., unvalidated) sub-block requiring
1141: * explicit close-out, postpone switching the current block from
1142: * head to body until the rew_sub() call closing out that
1143: * sub-block.
1.47 kristaps 1144: */
1145: for (n = m->last; n && n != head; n = n->parent) {
1.49 kristaps 1146: if (MDOC_BLOCK == n->type &&
1147: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1148: ! (MDOC_VALID & n->flags)) {
1149: assert( ! (MDOC_ACTED & n->flags));
1.47 kristaps 1150: n->pending = head;
1151: return(1);
1152: }
1153: }
1154:
1.45 kristaps 1155: /* Close out scopes to remain in a consistent state. */
1156:
1.32 kristaps 1157: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1158: return(0);
1.32 kristaps 1159: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1160: return(0);
1161:
1.77 kristaps 1162: out:
1163: if ( ! (MDOC_FREECOL & m->flags))
1164: return(1);
1165:
1166: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1167: return(0);
1168: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1169: return(0);
1170:
1171: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1172: return(1);
1173: }
1174:
1175:
1176: static int
1177: blk_part_imp(MACRO_PROT_ARGS)
1178: {
1.63 kristaps 1179: int la, nl;
1.53 kristaps 1180: enum mdoct ntok;
1.55 kristaps 1181: enum margserr ac;
1.1 kristaps 1182: char *p;
1.43 kristaps 1183: struct mdoc_node *blk; /* saved block context */
1184: struct mdoc_node *body; /* saved body context */
1185: struct mdoc_node *n;
1.1 kristaps 1186:
1.63 kristaps 1187: nl = MDOC_NEWLINE & m->flags;
1188:
1.43 kristaps 1189: /*
1190: * A macro that spans to the end of the line. This is generally
1191: * (but not necessarily) called as the first macro. The block
1192: * has a head as the immediate child, which is always empty,
1193: * followed by zero or more opening punctuation nodes, then the
1194: * body (which may be empty, depending on the macro), then zero
1195: * or more closing punctuation nodes.
1196: */
1.32 kristaps 1197:
1198: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1199: return(0);
1.43 kristaps 1200:
1.32 kristaps 1201: blk = m->last;
1.43 kristaps 1202:
1.32 kristaps 1203: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1204: return(0);
1.32 kristaps 1205: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1206: return(0);
1207:
1.43 kristaps 1208: /*
1209: * Open the body scope "on-demand", that is, after we've
1210: * processed all our the leading delimiters (open parenthesis,
1211: * etc.).
1212: */
1.1 kristaps 1213:
1.43 kristaps 1214: for (body = NULL; ; ) {
1.32 kristaps 1215: la = *pos;
1.53 kristaps 1216: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.43 kristaps 1217:
1.53 kristaps 1218: if (ARGS_ERROR == ac)
1.1 kristaps 1219: return(0);
1.53 kristaps 1220: if (ARGS_EOLN == ac)
1.43 kristaps 1221: break;
1.53 kristaps 1222: if (ARGS_PUNCT == ac)
1.1 kristaps 1223: break;
1224:
1.53 kristaps 1225: if (NULL == body && ARGS_QWORD != ac &&
1.67 schwarze 1226: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 kristaps 1227: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1228: return(0);
1229: continue;
1230: }
1231:
1.43 kristaps 1232: if (NULL == body) {
1233: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1234: return(0);
1235: body = m->last;
1236: }
1237:
1.54 kristaps 1238: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1239:
1240: if (MDOC_MAX == ntok) {
1.53 kristaps 1241: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1242: return(0);
1.53 kristaps 1243: continue;
1244: }
1.43 kristaps 1245:
1.82 kristaps 1246: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1247: return(0);
1.53 kristaps 1248: break;
1.1 kristaps 1249: }
1250:
1.43 kristaps 1251: /* Clean-ups to leave in a consistent state. */
1252:
1.44 kristaps 1253: if (NULL == body) {
1254: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1255: return(0);
1256: body = m->last;
1.64 kristaps 1257: }
1258:
1259: for (n = body->child; n && n->next; n = n->next)
1260: /* Do nothing. */ ;
1261:
1262: /*
1263: * End of sentence spacing: if the last node is a text node and
1264: * has a trailing period, then mark it as being end-of-sentence.
1265: */
1266:
1267: if (n && MDOC_TEXT == n->type && n->string)
1268: if (mandoc_eos(n->string, strlen(n->string)))
1269: n->flags |= MDOC_EOS;
1270:
1271: /* Up-propogate the end-of-space flag. */
1272:
1273: if (n && (MDOC_EOS & n->flags)) {
1274: body->flags |= MDOC_EOS;
1275: body->parent->flags |= MDOC_EOS;
1.44 kristaps 1276: }
1.43 kristaps 1277:
1.83 schwarze 1278: /*
1279: * If there is an open sub-block requiring explicit close-out,
1280: * postpone closing out the current block
1281: * until the rew_sub() call closing out the sub-block.
1282: */
1283: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1284: if (MDOC_BLOCK == n->type &&
1285: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1286: ! (MDOC_VALID & n->flags)) {
1287: assert( ! (MDOC_ACTED & n->flags));
1288: if ( ! make_pending(n, tok, m, line, ppos))
1289: return(0);
1290: if ( ! mdoc_endbody_alloc(m, line, ppos,
1291: tok, body, ENDBODY_NOSPACE))
1292: return(0);
1293: return(1);
1294: }
1295: }
1296:
1.32 kristaps 1297: /*
1298: * If we can't rewind to our body, then our scope has already
1299: * been closed by another macro (like `Oc' closing `Op'). This
1300: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1301: * crufty use of `Op' breakage.
1.1 kristaps 1302: */
1.88 schwarze 1303: if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPENEST,
1304: line, ppos, "%s broken", mdoc_macronames[tok]))
1.32 kristaps 1305: return(0);
1.43 kristaps 1306:
1.83 schwarze 1307: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.32 kristaps 1308: return(0);
1.1 kristaps 1309:
1.32 kristaps 1310: /* Standard appending of delimiters. */
1.1 kristaps 1311:
1.63 kristaps 1312: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1313: return(0);
1314:
1.32 kristaps 1315: /* Rewind scope, if applicable. */
1.1 kristaps 1316:
1.83 schwarze 1317: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1318: return(0);
1319:
1320: return(1);
1321: }
1322:
1323:
1324: static int
1325: blk_part_exp(MACRO_PROT_ARGS)
1326: {
1.60 kristaps 1327: int la, nl;
1.55 kristaps 1328: enum margserr ac;
1.43 kristaps 1329: struct mdoc_node *head; /* keep track of head */
1330: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1331: char *p;
1.53 kristaps 1332: enum mdoct ntok;
1.1 kristaps 1333:
1.60 kristaps 1334: nl = MDOC_NEWLINE & m->flags;
1335:
1.43 kristaps 1336: /*
1337: * The opening of an explicit macro having zero or more leading
1338: * punctuation nodes; a head with optional single element (the
1339: * case of `Eo'); and a body that may be empty.
1340: */
1.32 kristaps 1341:
1342: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1343: return(0);
1.32 kristaps 1344:
1.43 kristaps 1345: for (head = body = NULL; ; ) {
1.32 kristaps 1346: la = *pos;
1.53 kristaps 1347: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1348:
1.53 kristaps 1349: if (ARGS_ERROR == ac)
1.1 kristaps 1350: return(0);
1.53 kristaps 1351: if (ARGS_PUNCT == ac)
1.1 kristaps 1352: break;
1.53 kristaps 1353: if (ARGS_EOLN == ac)
1.1 kristaps 1354: break;
1.43 kristaps 1355:
1356: /* Flush out leading punctuation. */
1357:
1.53 kristaps 1358: if (NULL == head && ARGS_QWORD != ac &&
1.67 schwarze 1359: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1360: assert(NULL == body);
1361: if ( ! mdoc_word_alloc(m, line, la, p))
1362: return(0);
1363: continue;
1364: }
1365:
1366: if (NULL == head) {
1367: assert(NULL == body);
1368: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1369: return(0);
1.43 kristaps 1370: head = m->last;
1.1 kristaps 1371: }
1372:
1.43 kristaps 1373: /*
1374: * `Eo' gobbles any data into the head, but most other
1375: * macros just immediately close out and begin the body.
1376: */
1377:
1378: if (NULL == body) {
1379: assert(head);
1380: /* No check whether it's a macro! */
1381: if (MDOC_Eo == tok)
1382: if ( ! mdoc_word_alloc(m, line, la, p))
1383: return(0);
1384:
1.32 kristaps 1385: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1386: return(0);
1.32 kristaps 1387: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1388: return(0);
1.43 kristaps 1389: body = m->last;
1390:
1391: if (MDOC_Eo == tok)
1392: continue;
1.1 kristaps 1393: }
1.43 kristaps 1394:
1395: assert(NULL != head && NULL != body);
1396:
1.54 kristaps 1397: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1398:
1399: if (MDOC_MAX == ntok) {
1.53 kristaps 1400: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1401: return(0);
1.53 kristaps 1402: continue;
1.43 kristaps 1403: }
1404:
1.82 kristaps 1405: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1406: return(0);
1.53 kristaps 1407: break;
1.1 kristaps 1408: }
1409:
1.43 kristaps 1410: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1411:
1.43 kristaps 1412: if (NULL == head) {
1413: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1414: return(0);
1415: head = m->last;
1416: }
1417:
1418: if (NULL == body) {
1.32 kristaps 1419: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1420: return(0);
1.32 kristaps 1421: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1422: return(0);
1.43 kristaps 1423: body = m->last;
1.1 kristaps 1424: }
1425:
1.32 kristaps 1426: /* Standard appending of delimiters. */
1427:
1.60 kristaps 1428: if ( ! nl)
1.1 kristaps 1429: return(1);
1.32 kristaps 1430: return(append_delims(m, line, pos, buf));
1.1 kristaps 1431: }
1432:
1433:
1.61 kristaps 1434: /* ARGSUSED */
1.1 kristaps 1435: static int
1436: in_line_argn(MACRO_PROT_ARGS)
1437: {
1.60 kristaps 1438: int la, flushed, j, maxargs, nl;
1.55 kristaps 1439: enum margserr ac;
1.56 kristaps 1440: enum margverr av;
1.53 kristaps 1441: struct mdoc_arg *arg;
1442: char *p;
1443: enum mdoct ntok;
1.1 kristaps 1444:
1.60 kristaps 1445: nl = MDOC_NEWLINE & m->flags;
1446:
1.46 kristaps 1447: /*
1448: * A line macro that has a fixed number of arguments (maxargs).
1449: * Only open the scope once the first non-leading-punctuation is
1450: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1451: * keep it open until the maximum number of arguments are
1452: * exhausted.
1453: */
1.1 kristaps 1454:
1455: switch (tok) {
1456: case (MDOC_Ap):
1457: /* FALLTHROUGH */
1458: case (MDOC_No):
1459: /* FALLTHROUGH */
1460: case (MDOC_Ns):
1461: /* FALLTHROUGH */
1462: case (MDOC_Ux):
1463: maxargs = 0;
1464: break;
1.42 kristaps 1465: case (MDOC_Xr):
1466: maxargs = 2;
1467: break;
1.1 kristaps 1468: default:
1469: maxargs = 1;
1470: break;
1471: }
1472:
1.46 kristaps 1473: for (arg = NULL; ; ) {
1.32 kristaps 1474: la = *pos;
1.56 kristaps 1475: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1476:
1.56 kristaps 1477: if (ARGV_WORD == av) {
1.32 kristaps 1478: *pos = la;
1.1 kristaps 1479: break;
1480: }
1481:
1.56 kristaps 1482: if (ARGV_EOLN == av)
1.1 kristaps 1483: break;
1.56 kristaps 1484: if (ARGV_ARG == av)
1.1 kristaps 1485: continue;
1486:
1487: mdoc_argv_free(arg);
1488: return(0);
1489: }
1490:
1.46 kristaps 1491: for (flushed = j = 0; ; ) {
1.32 kristaps 1492: la = *pos;
1.53 kristaps 1493: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1494:
1.53 kristaps 1495: if (ARGS_ERROR == ac)
1.1 kristaps 1496: return(0);
1.53 kristaps 1497: if (ARGS_PUNCT == ac)
1.1 kristaps 1498: break;
1.53 kristaps 1499: if (ARGS_EOLN == ac)
1.1 kristaps 1500: break;
1501:
1.46 kristaps 1502: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1503: ARGS_QWORD != ac &&
1.67 schwarze 1504: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.46 kristaps 1505: if ( ! mdoc_word_alloc(m, line, la, p))
1506: return(0);
1507: continue;
1508: } else if (0 == j)
1509: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1510: return(0);
1511:
1512: if (j == maxargs && ! flushed) {
1513: if ( ! rew_elem(m, tok))
1514: return(0);
1515: flushed = 1;
1516: }
1517:
1.54 kristaps 1518: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1519:
1520: if (MDOC_MAX != ntok) {
1.32 kristaps 1521: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1522: return(0);
1523: flushed = 1;
1.82 kristaps 1524: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1525: return(0);
1.46 kristaps 1526: j++;
1.1 kristaps 1527: break;
1528: }
1529:
1530: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1531: ARGS_QWORD != ac &&
1.67 schwarze 1532: ! flushed &&
1533: DELIM_NONE != mdoc_isdelim(p)) {
1.32 kristaps 1534: if ( ! rew_elem(m, tok))
1.1 kristaps 1535: return(0);
1536: flushed = 1;
1537: }
1.42 kristaps 1538:
1539: /*
1540: * XXX: this is a hack to work around groff's ugliness
1541: * as regards `Xr' and extraneous arguments. It should
1542: * ideally be deprecated behaviour, but because this is
1543: * code is no here, it's unlikely to be removed.
1544: */
1.43 kristaps 1545:
1.46 kristaps 1546: #ifdef __OpenBSD__
1.42 kristaps 1547: if (MDOC_Xr == tok && j == maxargs) {
1.46 kristaps 1548: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.42 kristaps 1549: return(0);
1550: if ( ! rew_elem(m, MDOC_Ns))
1551: return(0);
1552: }
1.46 kristaps 1553: #endif
1.42 kristaps 1554:
1.32 kristaps 1555: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1556: return(0);
1.46 kristaps 1557: j++;
1.1 kristaps 1558: }
1559:
1.46 kristaps 1560: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1561: return(0);
1562:
1563: /* Close out in a consistent state. */
1.32 kristaps 1564:
1565: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1566: return(0);
1.60 kristaps 1567: if ( ! nl)
1.1 kristaps 1568: return(1);
1.32 kristaps 1569: return(append_delims(m, line, pos, buf));
1.1 kristaps 1570: }
1571:
1572:
1573: static int
1574: in_line_eoln(MACRO_PROT_ARGS)
1575: {
1.56 kristaps 1576: int la;
1.55 kristaps 1577: enum margserr ac;
1.56 kristaps 1578: enum margverr av;
1.53 kristaps 1579: struct mdoc_arg *arg;
1580: char *p;
1581: enum mdoct ntok;
1.1 kristaps 1582:
1583: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1584:
1.90 ! schwarze 1585: if (tok == MDOC_Pp)
! 1586: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
! 1587:
1.32 kristaps 1588: /* Parse macro arguments. */
1.1 kristaps 1589:
1.32 kristaps 1590: for (arg = NULL; ; ) {
1.1 kristaps 1591: la = *pos;
1.56 kristaps 1592: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1593:
1.56 kristaps 1594: if (ARGV_WORD == av) {
1.1 kristaps 1595: *pos = la;
1596: break;
1597: }
1.56 kristaps 1598: if (ARGV_EOLN == av)
1.1 kristaps 1599: break;
1.56 kristaps 1600: if (ARGV_ARG == av)
1.1 kristaps 1601: continue;
1602:
1603: mdoc_argv_free(arg);
1604: return(0);
1605: }
1606:
1.32 kristaps 1607: /* Open element scope. */
1608:
1609: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1610: return(0);
1611:
1.32 kristaps 1612: /* Parse argument terms. */
1.1 kristaps 1613:
1614: for (;;) {
1615: la = *pos;
1.53 kristaps 1616: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1617:
1.53 kristaps 1618: if (ARGS_ERROR == ac)
1.1 kristaps 1619: return(0);
1.53 kristaps 1620: if (ARGS_EOLN == ac)
1.1 kristaps 1621: break;
1622:
1.53 kristaps 1623: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1624:
1.53 kristaps 1625: if (MDOC_MAX == ntok) {
1626: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1627: return(0);
1.53 kristaps 1628: continue;
1629: }
1.1 kristaps 1630:
1.53 kristaps 1631: if ( ! rew_elem(m, tok))
1.1 kristaps 1632: return(0);
1.82 kristaps 1633: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1634: }
1635:
1.32 kristaps 1636: /* Close out (no delimiters). */
1637:
1638: return(rew_elem(m, tok));
1.1 kristaps 1639: }
1640:
1641:
1642: /* ARGSUSED */
1643: static int
1.41 kristaps 1644: ctx_synopsis(MACRO_PROT_ARGS)
1645: {
1.60 kristaps 1646: int nl;
1647:
1648: nl = MDOC_NEWLINE & m->flags;
1.41 kristaps 1649:
1650: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.90 ! schwarze 1651: if ( ! (MDOC_SYNOPSIS & m->flags))
1.82 kristaps 1652: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1653:
1654: /* If we're a nested call, same place. */
1.60 kristaps 1655: if ( ! nl)
1.82 kristaps 1656: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1657:
1658: /*
1659: * XXX: this will open a block scope; however, if later we end
1660: * up formatting the block scope, then child nodes will inherit
1661: * the formatting. Be careful.
1662: */
1.88 schwarze 1663: if (MDOC_Nm == tok)
1664: return(blk_full(m, tok, line, ppos, pos, buf));
1665: assert(MDOC_Vt == tok);
1.82 kristaps 1666: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.41 kristaps 1667: }
1668:
1669:
1670: /* ARGSUSED */
1671: static int
1.1 kristaps 1672: obsolete(MACRO_PROT_ARGS)
1673: {
1674:
1.68 kristaps 1675: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1676: }
1677:
1678:
1.24 kristaps 1679: /*
1680: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1681: * They're unusual because they're basically free-form text until a
1682: * macro is encountered.
1683: */
1.1 kristaps 1684: static int
1.82 kristaps 1685: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1686: {
1.53 kristaps 1687: int la, pos;
1.75 kristaps 1688: enum margserr ac;
1.53 kristaps 1689: enum mdoct ntok;
1690: char *p;
1.1 kristaps 1691:
1.24 kristaps 1692: for (pos = ppos; ; ) {
1693: la = pos;
1.1 kristaps 1694:
1.75 kristaps 1695: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1696:
1.75 kristaps 1697: if (ARGS_ERROR == ac)
1.24 kristaps 1698: return(0);
1.75 kristaps 1699: if (ARGS_EOLN == ac)
1.24 kristaps 1700: break;
1.1 kristaps 1701:
1.75 kristaps 1702: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1703:
1.53 kristaps 1704: if (MDOC_MAX == ntok) {
1705: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1706: return(0);
1.53 kristaps 1707: continue;
1708: }
1.1 kristaps 1709:
1.82 kristaps 1710: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1711: return(0);
1.53 kristaps 1712: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1713: }
1714:
1715: return(1);
1716: }
1.24 kristaps 1717:
1718:
1.79 kristaps 1719: /* ARGSUSED */
1.75 kristaps 1720: static int
1721: phrase_ta(MACRO_PROT_ARGS)
1722: {
1723: int la;
1724: enum mdoct ntok;
1725: enum margserr ac;
1726: char *p;
1727:
1728: /*
1729: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1730: * it should simply error out with ARGSLOST.
1731: */
1732:
1733: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1734: return(0);
1735: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1736: return(0);
1737:
1738: for (;;) {
1739: la = *pos;
1740: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1741:
1742: if (ARGS_ERROR == ac)
1743: return(0);
1744: if (ARGS_EOLN == ac)
1745: break;
1746:
1747: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1748:
1749: if (MDOC_MAX == ntok) {
1750: if ( ! mdoc_word_alloc(m, line, la, p))
1751: return(0);
1752: continue;
1753: }
1754:
1.82 kristaps 1755: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.75 kristaps 1756: return(0);
1757: return(append_delims(m, line, pos, buf));
1758: }
1759:
1760: return(1);
1761: }
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