Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.63
1.63 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.62 2011/01/04 22:28:17 schwarze Exp $ */
1.1 kristaps 2: /*
1.54 schwarze 3: * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
4: * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.2 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
18: #include <assert.h>
19: #include <ctype.h>
20: #include <stdlib.h>
21: #include <stdio.h>
22: #include <string.h>
1.26 schwarze 23: #include <time.h>
1.1 kristaps 24:
1.44 schwarze 25: #include "mandoc.h"
1.1 kristaps 26: #include "libmdoc.h"
1.39 schwarze 27: #include "libmandoc.h"
1.1 kristaps 28:
1.48 schwarze 29: enum rew { /* see rew_dohalt() */
30: REWIND_NONE,
31: REWIND_THIS,
32: REWIND_MORE,
1.59 schwarze 33: REWIND_FORCE,
1.48 schwarze 34: REWIND_LATER,
1.54 schwarze 35: REWIND_ERROR
1.35 schwarze 36: };
1.1 kristaps 37:
1.36 schwarze 38: static int blk_full(MACRO_PROT_ARGS);
39: static int blk_exp_close(MACRO_PROT_ARGS);
40: static int blk_part_exp(MACRO_PROT_ARGS);
41: static int blk_part_imp(MACRO_PROT_ARGS);
42: static int ctx_synopsis(MACRO_PROT_ARGS);
43: static int in_line_eoln(MACRO_PROT_ARGS);
44: static int in_line_argn(MACRO_PROT_ARGS);
45: static int in_line(MACRO_PROT_ARGS);
46: static int obsolete(MACRO_PROT_ARGS);
1.46 schwarze 47: static int phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 48:
49: static int append_delims(struct mdoc *,
50: int, int *, char *);
51: static enum mdoct lookup(enum mdoct, const char *);
52: static enum mdoct lookup_raw(const char *);
1.49 schwarze 53: static int make_pending(struct mdoc_node *, enum mdoct,
1.47 schwarze 54: struct mdoc *, int, int);
1.46 schwarze 55: static int phrase(struct mdoc *, int, int, char *);
1.36 schwarze 56: static enum mdoct rew_alt(enum mdoct);
57: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
58: const struct mdoc_node *);
59: static int rew_elem(struct mdoc *, enum mdoct);
60: static int rew_last(struct mdoc *,
61: const struct mdoc_node *);
62: static int rew_sub(enum mdoc_type, struct mdoc *,
63: enum mdoct, int, int);
1.1 kristaps 64:
65: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.4 schwarze 66: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
1.1 kristaps 67: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
68: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
69: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
70: { blk_full, 0 }, /* Sh */
71: { blk_full, 0 }, /* Ss */
1.16 schwarze 72: { in_line_eoln, 0 }, /* Pp */
1.1 kristaps 73: { blk_part_imp, MDOC_PARSED }, /* D1 */
74: { blk_part_imp, MDOC_PARSED }, /* Dl */
75: { blk_full, MDOC_EXPLICIT }, /* Bd */
76: { blk_exp_close, MDOC_EXPLICIT }, /* Ed */
77: { blk_full, MDOC_EXPLICIT }, /* Bl */
78: { blk_exp_close, MDOC_EXPLICIT }, /* El */
79: { blk_full, MDOC_PARSED }, /* It */
80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.3 schwarze 81: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.15 schwarze 83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
1.1 kristaps 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
88: { in_line_eoln, 0 }, /* Ex */
89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
90: { in_line_eoln, 0 }, /* Fd */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
1.3 schwarze 93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.11 schwarze 95: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.12 schwarze 97: { blk_full, 0 }, /* Nd */
1.51 schwarze 98: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 99: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
100: { obsolete, 0 }, /* Ot */
101: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
102: { in_line_eoln, 0 }, /* Rv */
103: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
104: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.28 schwarze 105: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
106: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.1 kristaps 107: { in_line_eoln, 0 }, /* %A */
108: { in_line_eoln, 0 }, /* %B */
109: { in_line_eoln, 0 }, /* %D */
110: { in_line_eoln, 0 }, /* %I */
111: { in_line_eoln, 0 }, /* %J */
112: { in_line_eoln, 0 }, /* %N */
113: { in_line_eoln, 0 }, /* %O */
114: { in_line_eoln, 0 }, /* %P */
115: { in_line_eoln, 0 }, /* %R */
116: { in_line_eoln, 0 }, /* %T */
117: { in_line_eoln, 0 }, /* %V */
118: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
119: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
120: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
121: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
122: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
123: { blk_full, MDOC_EXPLICIT }, /* Bf */
124: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
125: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
126: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
127: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
128: { in_line_eoln, 0 }, /* Db */
129: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
130: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
131: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
132: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
133: { blk_exp_close, MDOC_EXPLICIT }, /* Ef */
134: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
135: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
136: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 137: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.57 schwarze 138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* No */
139: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Ns */
1.1 kristaps 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
142: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.35 schwarze 143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.1 kristaps 144: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
145: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
146: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
147: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
148: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
149: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
150: { blk_exp_close, MDOC_EXPLICIT }, /* Re */
151: { blk_full, MDOC_EXPLICIT }, /* Rs */
152: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
153: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
154: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
155: { in_line_eoln, 0 }, /* Sm */
156: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
157: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
158: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
159: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
160: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
161: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
162: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
163: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
164: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
165: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
166: { blk_full, MDOC_EXPLICIT }, /* Bk */
167: { blk_exp_close, MDOC_EXPLICIT }, /* Ek */
168: { in_line_eoln, 0 }, /* Bt */
169: { in_line_eoln, 0 }, /* Hf */
170: { obsolete, 0 }, /* Fr */
171: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 172: { in_line, 0 }, /* Lb */
1.16 schwarze 173: { in_line_eoln, 0 }, /* Lp */
1.3 schwarze 174: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
175: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
1.1 kristaps 176: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
177: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
178: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
179: { in_line_eoln, 0 }, /* %C */
180: { obsolete, 0 }, /* Es */
181: { obsolete, 0 }, /* En */
182: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
183: { in_line_eoln, 0 }, /* %Q */
1.13 schwarze 184: { in_line_eoln, 0 }, /* br */
185: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 186: { in_line_eoln, 0 }, /* %U */
1.46 schwarze 187: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
1.1 kristaps 188: };
189:
190: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
191:
192:
193: /*
194: * This is called at the end of parsing. It must traverse up the tree,
195: * closing out open [implicit] scopes. Obviously, open explicit scopes
196: * are errors.
197: */
198: int
1.22 schwarze 199: mdoc_macroend(struct mdoc *m)
1.1 kristaps 200: {
201: struct mdoc_node *n;
202:
203: /* Scan for open explicit scopes. */
204:
1.22 schwarze 205: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 206:
1.56 schwarze 207: for ( ; n; n = n->parent)
208: if (MDOC_BLOCK == n->type &&
209: MDOC_EXPLICIT & mdoc_macros[n->tok].flags)
210: mdoc_nmsg(m, n, MANDOCERR_SCOPEEXIT);
1.1 kristaps 211:
1.22 schwarze 212: /* Rewind to the first. */
213:
214: return(rew_last(m, m->first));
1.1 kristaps 215: }
216:
1.22 schwarze 217:
218: /*
219: * Look up a macro from within a subsequent context.
220: */
1.36 schwarze 221: static enum mdoct
222: lookup(enum mdoct from, const char *p)
1.21 schwarze 223: {
1.24 schwarze 224: /* FIXME: make -diag lists be un-PARSED. */
1.21 schwarze 225:
226: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
227: return(MDOC_MAX);
1.24 schwarze 228: return(lookup_raw(p));
1.21 schwarze 229: }
230:
231:
1.22 schwarze 232: /*
233: * Lookup a macro following the initial line macro.
234: */
1.36 schwarze 235: static enum mdoct
1.24 schwarze 236: lookup_raw(const char *p)
1.1 kristaps 237: {
1.36 schwarze 238: enum mdoct res;
1.1 kristaps 239:
1.24 schwarze 240: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.21 schwarze 241: return(MDOC_MAX);
242: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 243: return(res);
244: return(MDOC_MAX);
245: }
246:
247:
248: static int
1.22 schwarze 249: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 250: {
1.63 ! schwarze 251: struct mdoc_node *n, *np;
1.1 kristaps 252:
253: assert(to);
254: mdoc->next = MDOC_NEXT_SIBLING;
255:
256: /* LINTED */
257: while (mdoc->last != to) {
1.63 ! schwarze 258: /*
! 259: * Save the parent here, because we may delete the
! 260: * m->last node in the post-validation phase and reset
! 261: * it to m->last->parent, causing a step in the closing
! 262: * out to be lost.
! 263: */
! 264: np = mdoc->last->parent;
1.1 kristaps 265: if ( ! mdoc_valid_post(mdoc))
266: return(0);
1.61 schwarze 267: n = mdoc->last;
1.63 ! schwarze 268: mdoc->last = np;
1.1 kristaps 269: assert(mdoc->last);
1.61 schwarze 270: mdoc->last->last = n;
1.1 kristaps 271: }
272:
1.60 schwarze 273: return(mdoc_valid_post(mdoc));
1.1 kristaps 274: }
275:
276:
1.22 schwarze 277: /*
1.48 schwarze 278: * For a block closing macro, return the corresponding opening one.
279: * Otherwise, return the macro itself.
1.22 schwarze 280: */
1.34 schwarze 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:
1.48 schwarze 318: return(tok);
1.1 kristaps 319: }
320: /* NOTREACHED */
321: }
322:
323:
1.48 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.
1.59 schwarze 330: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.48 schwarze 331: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
332: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 333: */
1.35 schwarze 334: static enum rew
1.34 schwarze 335: rew_dohalt(enum mdoct tok, enum mdoc_type type,
336: const struct mdoc_node *p)
1.1 kristaps 337: {
338:
1.50 schwarze 339: /*
340: * No matching token, no delimiting block, no broken block.
341: * This can happen when full implicit macros are called for
342: * the first time but try to rewind their previous
343: * instance anyway.
344: */
1.1 kristaps 345: if (MDOC_ROOT == p->type)
1.48 schwarze 346: return(MDOC_BLOCK == type &&
347: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
348: REWIND_ERROR : REWIND_NONE);
1.50 schwarze 349:
350: /*
351: * When starting to rewind, skip plain text
352: * and nodes that have already been rewound.
353: */
1.48 schwarze 354: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
355: return(REWIND_MORE);
356:
1.50 schwarze 357: /*
358: * The easiest case: Found a matching token.
359: * This applies to both blocks and elements.
360: */
1.48 schwarze 361: tok = rew_alt(tok);
362: if (tok == p->tok)
363: return(p->end ? REWIND_NONE :
364: type == p->type ? REWIND_THIS : REWIND_MORE);
365:
1.50 schwarze 366: /*
367: * While elements do require rewinding for themselves,
368: * they never affect rewinding of other nodes.
369: */
1.48 schwarze 370: if (MDOC_ELEM == p->type)
371: return(REWIND_MORE);
1.1 kristaps 372:
1.50 schwarze 373: /*
374: * Blocks delimited by our target token get REWIND_MORE.
375: * Blocks delimiting our target token get REWIND_NONE.
376: */
1.1 kristaps 377: switch (tok) {
1.48 schwarze 378: case (MDOC_Bl):
379: if (MDOC_It == p->tok)
380: return(REWIND_MORE);
1.1 kristaps 381: break;
382: case (MDOC_It):
383: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.48 schwarze 384: return(REWIND_NONE);
1.1 kristaps 385: break;
1.48 schwarze 386: /*
387: * XXX Badly nested block handling still fails badly
388: * when one block is breaking two blocks of the same type.
389: * This is an incomplete and extremely ugly workaround,
390: * required to let the OpenBSD tree build.
391: */
392: case (MDOC_Oo):
393: if (MDOC_Op == p->tok)
394: return(REWIND_MORE);
1.1 kristaps 395: break;
1.51 schwarze 396: case (MDOC_Nm):
397: return(REWIND_NONE);
1.12 schwarze 398: case (MDOC_Nd):
399: /* FALLTHROUGH */
1.1 kristaps 400: case (MDOC_Ss):
401: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.48 schwarze 402: return(REWIND_NONE);
1.1 kristaps 403: /* FALLTHROUGH */
404: case (MDOC_Sh):
1.48 schwarze 405: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
406: MDOC_Sh == p->tok)
407: return(REWIND_MORE);
1.1 kristaps 408: break;
409: default:
410: break;
411: }
412:
1.50 schwarze 413: /*
414: * Default block rewinding rules.
1.51 schwarze 415: * In particular, always skip block end markers,
416: * and let all blocks rewind Nm children.
1.50 schwarze 417: */
1.54 schwarze 418: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
1.51 schwarze 419: (MDOC_BLOCK == p->type &&
1.50 schwarze 420: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
421: return(REWIND_MORE);
422:
423: /*
1.59 schwarze 424: * By default, closing out full blocks
425: * forces closing of broken explicit blocks,
426: * while closing out partial blocks
427: * allows delayed rewinding by default.
1.50 schwarze 428: */
1.59 schwarze 429: return (&blk_full == mdoc_macros[tok].fp ?
430: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 431: }
432:
433:
434: static int
1.34 schwarze 435: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 436: {
437: struct mdoc_node *n;
438:
439: n = mdoc->last;
440: if (MDOC_ELEM != n->type)
441: n = n->parent;
442: assert(MDOC_ELEM == n->type);
443: assert(tok == n->tok);
444:
445: return(rew_last(mdoc, n));
446: }
447:
448:
1.47 schwarze 449: /*
450: * We are trying to close a block identified by tok,
451: * but the child block *broken is still open.
452: * Thus, postpone closing the tok block
453: * until the rew_sub call closing *broken.
454: */
455: static int
456: make_pending(struct mdoc_node *broken, enum mdoct tok,
457: struct mdoc *m, int line, int ppos)
458: {
459: struct mdoc_node *breaker;
460:
461: /*
462: * Iterate backwards, searching for the block matching tok,
463: * that is, the block breaking the *broken block.
464: */
465: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
466:
467: /*
468: * If the *broken block had already been broken before
469: * and we encounter its breaker, make the tok block
470: * pending on the inner breaker.
471: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
472: * becomes "[A broken=[B [C->B B] tok=A] C]"
473: * and finally "[A [B->A [C->B B] A] C]".
474: */
475: if (breaker == broken->pending) {
476: broken = breaker;
477: continue;
478: }
479:
1.48 schwarze 480: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.47 schwarze 481: continue;
482: if (MDOC_BODY == broken->type)
483: broken = broken->parent;
484:
485: /*
486: * Found the breaker.
487: * If another, outer breaker is already pending on
488: * the *broken block, we must not clobber the link
489: * to the outer breaker, but make it pending on the
490: * new, now inner breaker.
491: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
492: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
493: * and finally "[A [B->A [C->B A] B] C]".
494: */
495: if (broken->pending) {
496: struct mdoc_node *taker;
497:
498: /*
499: * If the breaker had also been broken before,
500: * it cannot take on the outer breaker itself,
501: * but must hand it on to its own breakers.
502: * Graphically, this is the following situation:
503: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
504: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
505: */
506: taker = breaker;
507: while (taker->pending)
508: taker = taker->pending;
509: taker->pending = broken->pending;
510: }
511: broken->pending = breaker;
1.51 schwarze 512: mdoc_vmsg(m, MANDOCERR_SCOPENEST, line, ppos,
513: "%s breaks %s", mdoc_macronames[tok],
514: mdoc_macronames[broken->tok]);
1.47 schwarze 515: return(1);
516: }
517:
518: /*
519: * Found no matching block for tok.
520: * Are you trying to close a block that is not open?
521: */
522: return(0);
523: }
524:
1.48 schwarze 525:
1.1 kristaps 526: static int
1.22 schwarze 527: rew_sub(enum mdoc_type t, struct mdoc *m,
1.34 schwarze 528: enum mdoct tok, int line, int ppos)
1.1 kristaps 529: {
530: struct mdoc_node *n;
531:
1.48 schwarze 532: n = m->last;
533: while (n) {
534: switch (rew_dohalt(tok, t, n)) {
535: case (REWIND_NONE):
536: return(1);
537: case (REWIND_THIS):
538: break;
1.59 schwarze 539: case (REWIND_FORCE):
540: mdoc_vmsg(m, MANDOCERR_SCOPEBROKEN, line, ppos,
541: "%s breaks %s", mdoc_macronames[tok],
542: mdoc_macronames[n->tok]);
543: /* FALLTHROUGH */
1.48 schwarze 544: case (REWIND_MORE):
545: n = n->parent;
546: continue;
547: case (REWIND_LATER):
1.59 schwarze 548: if (make_pending(n, tok, m, line, ppos) ||
549: MDOC_BLOCK != t)
550: return(1);
551: /* FALLTHROUGH */
1.48 schwarze 552: case (REWIND_ERROR):
1.59 schwarze 553: mdoc_pmsg(m, line, ppos, MANDOCERR_NOSCOPE);
554: return(1);
1.22 schwarze 555: }
1.48 schwarze 556: break;
1.1 kristaps 557: }
558:
559: assert(n);
1.29 schwarze 560: if ( ! rew_last(m, n))
561: return(0);
562:
563: /*
1.47 schwarze 564: * The current block extends an enclosing block.
565: * Now that the current block ends, close the enclosing block, too.
1.29 schwarze 566: */
1.47 schwarze 567: while (NULL != (n = n->pending)) {
1.29 schwarze 568: if ( ! rew_last(m, n))
569: return(0);
1.47 schwarze 570: if (MDOC_HEAD == n->type &&
571: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.29 schwarze 572: return(0);
573: }
1.54 schwarze 574:
1.29 schwarze 575: return(1);
1.1 kristaps 576: }
577:
578:
579: static int
1.42 schwarze 580: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 581: {
1.42 schwarze 582: int la;
1.36 schwarze 583: enum margserr ac;
1.1 kristaps 584: char *p;
585:
1.42 schwarze 586: if ('\0' == buf[*pos])
1.1 kristaps 587: return(1);
588:
589: for (;;) {
1.42 schwarze 590: la = *pos;
591: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 592:
1.36 schwarze 593: if (ARGS_ERROR == ac)
1.1 kristaps 594: return(0);
1.36 schwarze 595: else if (ARGS_EOLN == ac)
1.1 kristaps 596: break;
1.42 schwarze 597:
1.40 schwarze 598: assert(DELIM_NONE != mdoc_isdelim(p));
1.42 schwarze 599: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 600: return(0);
1.43 schwarze 601:
1.42 schwarze 602: /*
603: * If we encounter end-of-sentence symbols, then trigger
604: * the double-space.
605: *
606: * XXX: it's easy to allow this to propogate outward to
607: * the last symbol, such that `. )' will cause the
608: * correct double-spacing. However, (1) groff isn't
609: * smart enough to do this and (2) it would require
610: * knowing which symbols break this behaviour, for
611: * example, `. ;' shouldn't propogate the double-space.
612: */
1.55 schwarze 613: if (mandoc_eos(p, strlen(p), 0))
1.42 schwarze 614: m->last->flags |= MDOC_EOS;
1.1 kristaps 615: }
616:
617: return(1);
618: }
619:
620:
621: /*
622: * Close out block partial/full explicit.
623: */
624: static int
625: blk_exp_close(MACRO_PROT_ARGS)
626: {
1.47 schwarze 627: struct mdoc_node *body; /* Our own body. */
628: struct mdoc_node *later; /* A sub-block starting later. */
629: struct mdoc_node *n; /* For searching backwards. */
630:
1.37 schwarze 631: int j, lastarg, maxargs, flushed, nl;
1.36 schwarze 632: enum margserr ac;
1.47 schwarze 633: enum mdoct atok, ntok;
1.1 kristaps 634: char *p;
635:
1.37 schwarze 636: nl = MDOC_NEWLINE & m->flags;
637:
1.1 kristaps 638: switch (tok) {
639: case (MDOC_Ec):
640: maxargs = 1;
641: break;
642: default:
643: maxargs = 0;
644: break;
645: }
646:
1.47 schwarze 647: /*
648: * Search backwards for beginnings of blocks,
649: * both of our own and of pending sub-blocks.
650: */
651: atok = rew_alt(tok);
652: body = later = NULL;
653: for (n = m->last; n; n = n->parent) {
654: if (MDOC_VALID & n->flags)
655: continue;
656:
657: /* Remember the start of our own body. */
658: if (MDOC_BODY == n->type && atok == n->tok) {
1.54 schwarze 659: if (ENDBODY_NOT == n->end)
1.47 schwarze 660: body = n;
661: continue;
662: }
663:
1.51 schwarze 664: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.47 schwarze 665: continue;
666: if (atok == n->tok) {
667: assert(body);
668:
669: /*
670: * Found the start of our own block.
671: * When there is no pending sub block,
672: * just proceed to closing out.
673: */
674: if (NULL == later)
675: break;
676:
677: /*
678: * When there is a pending sub block,
679: * postpone closing out the current block
680: * until the rew_sub() closing out the sub-block.
681: */
1.59 schwarze 682: make_pending(later, tok, m, line, ppos);
1.47 schwarze 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;
1.60 schwarze 702: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags)
1.47 schwarze 703: later = n;
704: }
705:
1.1 kristaps 706: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.44 schwarze 707: /* FIXME: do this in validate */
1.14 schwarze 708: if (buf[*pos])
1.44 schwarze 709: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 710: return(0);
1.14 schwarze 711:
1.22 schwarze 712: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.14 schwarze 713: return(0);
1.22 schwarze 714: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 715: }
716:
1.22 schwarze 717: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 718: return(0);
719:
1.47 schwarze 720: if (NULL == later && maxargs > 0)
1.22 schwarze 721: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 722: return(0);
723:
1.20 schwarze 724: for (flushed = j = 0; ; j++) {
1.1 kristaps 725: lastarg = *pos;
726:
727: if (j == maxargs && ! flushed) {
1.22 schwarze 728: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 729: return(0);
730: flushed = 1;
731: }
732:
1.36 schwarze 733: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 734:
1.36 schwarze 735: if (ARGS_ERROR == ac)
1.1 kristaps 736: return(0);
1.36 schwarze 737: if (ARGS_PUNCT == ac)
1.1 kristaps 738: break;
1.36 schwarze 739: if (ARGS_EOLN == ac)
1.1 kristaps 740: break;
741:
1.36 schwarze 742: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
743:
744: if (MDOC_MAX == ntok) {
745: if ( ! mdoc_word_alloc(m, line, lastarg, p))
1.1 kristaps 746: return(0);
1.36 schwarze 747: continue;
748: }
1.1 kristaps 749:
1.36 schwarze 750: if ( ! flushed) {
751: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
752: return(0);
753: flushed = 1;
754: }
755: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 756: return(0);
1.36 schwarze 757: break;
1.1 kristaps 758: }
759:
1.22 schwarze 760: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 761: return(0);
762:
1.37 schwarze 763: if ( ! nl)
1.1 kristaps 764: return(1);
1.22 schwarze 765: return(append_delims(m, line, pos, buf));
1.1 kristaps 766: }
767:
768:
769: static int
770: in_line(MACRO_PROT_ARGS)
771: {
1.45 schwarze 772: int la, scope, cnt, nc, nl;
1.36 schwarze 773: enum margverr av;
774: enum mdoct ntok;
775: enum margserr ac;
1.40 schwarze 776: enum mdelim d;
1.36 schwarze 777: struct mdoc_arg *arg;
778: char *p;
1.1 kristaps 779:
1.37 schwarze 780: nl = MDOC_NEWLINE & m->flags;
781:
1.1 kristaps 782: /*
783: * Whether we allow ignored elements (those without content,
784: * usually because of reserved words) to squeak by.
785: */
1.32 schwarze 786:
1.1 kristaps 787: switch (tok) {
1.19 schwarze 788: case (MDOC_An):
789: /* FALLTHROUGH */
790: case (MDOC_Ar):
1.1 kristaps 791: /* FALLTHROUGH */
792: case (MDOC_Fl):
793: /* FALLTHROUGH */
1.60 schwarze 794: case (MDOC_Mt):
1.18 schwarze 795: /* FALLTHROUGH */
1.19 schwarze 796: case (MDOC_Nm):
797: /* FALLTHROUGH */
1.18 schwarze 798: case (MDOC_Pa):
1.1 kristaps 799: nc = 1;
800: break;
801: default:
802: nc = 0;
803: break;
804: }
805:
1.20 schwarze 806: for (arg = NULL;; ) {
1.1 kristaps 807: la = *pos;
1.36 schwarze 808: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 809:
1.36 schwarze 810: if (ARGV_WORD == av) {
1.1 kristaps 811: *pos = la;
812: break;
813: }
1.36 schwarze 814: if (ARGV_EOLN == av)
1.1 kristaps 815: break;
1.36 schwarze 816: if (ARGV_ARG == av)
1.1 kristaps 817: continue;
818:
819: mdoc_argv_free(arg);
820: return(0);
821: }
822:
1.45 schwarze 823: for (cnt = scope = 0;; ) {
1.1 kristaps 824: la = *pos;
1.36 schwarze 825: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 826:
1.36 schwarze 827: if (ARGS_ERROR == ac)
1.1 kristaps 828: return(0);
1.36 schwarze 829: if (ARGS_EOLN == ac)
1.1 kristaps 830: break;
1.36 schwarze 831: if (ARGS_PUNCT == ac)
1.1 kristaps 832: break;
833:
1.36 schwarze 834: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 835:
836: /*
837: * In this case, we've located a submacro and must
838: * execute it. Close out scope, if open. If no
839: * elements have been generated, either create one (nc)
840: * or raise a warning.
841: */
842:
1.36 schwarze 843: if (MDOC_MAX != ntok) {
1.45 schwarze 844: if (scope && ! rew_elem(m, tok))
1.1 kristaps 845: return(0);
846: if (nc && 0 == cnt) {
1.22 schwarze 847: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 848: return(0);
1.22 schwarze 849: if ( ! rew_last(m, m->last))
1.3 schwarze 850: return(0);
1.1 kristaps 851: } else if ( ! nc && 0 == cnt) {
852: mdoc_argv_free(arg);
1.44 schwarze 853: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.1 kristaps 854: return(0);
855: }
1.36 schwarze 856: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 857: return(0);
1.37 schwarze 858: if ( ! nl)
1.1 kristaps 859: return(1);
1.22 schwarze 860: return(append_delims(m, line, pos, buf));
1.21 schwarze 861: }
1.1 kristaps 862:
863: /*
864: * Non-quote-enclosed punctuation. Set up our scope, if
865: * a word; rewind the scope, if a delimiter; then append
866: * the word.
867: */
868:
1.40 schwarze 869: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 870:
1.45 schwarze 871: if (DELIM_NONE != d) {
872: /*
873: * If we encounter closing punctuation, no word
874: * has been omitted, no scope is open, and we're
875: * allowed to have an empty element, then start
876: * a new scope. `Ar', `Fl', and `Li', only do
877: * this once per invocation. There may be more
878: * of these (all of them?).
879: */
880: if (0 == cnt && (nc || MDOC_Li == tok) &&
881: DELIM_CLOSE == d && ! scope) {
882: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
883: return(0);
884: if (MDOC_Ar == tok || MDOC_Li == tok ||
885: MDOC_Fl == tok)
886: cnt++;
887: scope = 1;
888: }
889: /*
890: * Close out our scope, if one is open, before
891: * any punctuation.
892: */
893: if (scope && ! rew_elem(m, tok))
1.1 kristaps 894: return(0);
1.45 schwarze 895: scope = 0;
896: } else if ( ! scope) {
1.22 schwarze 897: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 898: return(0);
1.45 schwarze 899: scope = 1;
1.1 kristaps 900: }
901:
1.40 schwarze 902: if (DELIM_NONE == d)
1.1 kristaps 903: cnt++;
1.22 schwarze 904: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 905: return(0);
1.27 schwarze 906:
907: /*
908: * `Fl' macros have their scope re-opened with each new
909: * word so that the `-' can be added to each one without
910: * having to parse out spaces.
911: */
1.45 schwarze 912: if (scope && MDOC_Fl == tok) {
1.27 schwarze 913: if ( ! rew_elem(m, tok))
914: return(0);
1.45 schwarze 915: scope = 0;
1.27 schwarze 916: }
1.1 kristaps 917: }
918:
1.45 schwarze 919: if (scope && ! rew_elem(m, tok))
1.1 kristaps 920: return(0);
921:
922: /*
923: * If no elements have been collected and we're allowed to have
924: * empties (nc), open a scope and close it out. Otherwise,
925: * raise a warning.
926: */
1.32 schwarze 927:
1.1 kristaps 928: if (nc && 0 == cnt) {
1.22 schwarze 929: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 930: return(0);
1.22 schwarze 931: if ( ! rew_last(m, m->last))
1.3 schwarze 932: return(0);
933: } else if ( ! nc && 0 == cnt) {
1.1 kristaps 934: mdoc_argv_free(arg);
1.44 schwarze 935: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.1 kristaps 936: return(0);
937: }
938:
1.37 schwarze 939: if ( ! nl)
1.1 kristaps 940: return(1);
1.22 schwarze 941: return(append_delims(m, line, pos, buf));
1.1 kristaps 942: }
943:
944:
945: static int
946: blk_full(MACRO_PROT_ARGS)
947: {
1.43 schwarze 948: int la, nl;
1.1 kristaps 949: struct mdoc_arg *arg;
1.32 schwarze 950: struct mdoc_node *head; /* save of head macro */
1.34 schwarze 951: struct mdoc_node *body; /* save of body macro */
1.32 schwarze 952: struct mdoc_node *n;
1.46 schwarze 953: enum mdoc_type mtt;
1.36 schwarze 954: enum mdoct ntok;
1.37 schwarze 955: enum margserr ac, lac;
1.36 schwarze 956: enum margverr av;
1.1 kristaps 957: char *p;
958:
1.43 schwarze 959: nl = MDOC_NEWLINE & m->flags;
960:
1.32 schwarze 961: /* Close out prior implicit scope. */
1.12 schwarze 962:
1.1 kristaps 963: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.22 schwarze 964: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 965: return(0);
1.22 schwarze 966: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 967: return(0);
968: }
969:
1.32 schwarze 970: /*
971: * This routine accomodates implicitly- and explicitly-scoped
972: * macro openings. Implicit ones first close out prior scope
973: * (seen above). Delay opening the head until necessary to
974: * allow leading punctuation to print. Special consideration
975: * for `It -column', which has phrase-part syntax instead of
976: * regular child nodes.
977: */
978:
1.1 kristaps 979: for (arg = NULL;; ) {
1.32 schwarze 980: la = *pos;
1.36 schwarze 981: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 982:
1.36 schwarze 983: if (ARGV_WORD == av) {
1.32 schwarze 984: *pos = la;
1.1 kristaps 985: break;
986: }
987:
1.36 schwarze 988: if (ARGV_EOLN == av)
1.1 kristaps 989: break;
1.36 schwarze 990: if (ARGV_ARG == av)
1.1 kristaps 991: continue;
992:
993: mdoc_argv_free(arg);
994: return(0);
995: }
996:
1.22 schwarze 997: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 998: return(0);
999:
1.34 schwarze 1000: head = body = NULL;
1.1 kristaps 1001:
1.32 schwarze 1002: /*
1003: * The `Nd' macro has all arguments in its body: it's a hybrid
1004: * of block partial-explicit and full-implicit. Stupid.
1005: */
1.12 schwarze 1006:
1.32 schwarze 1007: if (MDOC_Nd == tok) {
1008: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1009: return(0);
1010: head = m->last;
1.22 schwarze 1011: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.12 schwarze 1012: return(0);
1.22 schwarze 1013: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.12 schwarze 1014: return(0);
1.34 schwarze 1015: body = m->last;
1.12 schwarze 1016: }
1017:
1.37 schwarze 1018: ac = ARGS_ERROR;
1019:
1.41 schwarze 1020: for ( ; ; ) {
1.32 schwarze 1021: la = *pos;
1.46 schwarze 1022: /* Initialise last-phrase-type with ARGS_PEND. */
1023: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.36 schwarze 1024: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.52 schwarze 1025:
1026: if (ARGS_PUNCT == ac)
1027: break;
1.1 kristaps 1028:
1.36 schwarze 1029: if (ARGS_ERROR == ac)
1.1 kristaps 1030: return(0);
1.46 schwarze 1031:
1032: if (ARGS_EOLN == ac) {
1033: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1034: break;
1035: /*
1036: * This is necessary: if the last token on a
1037: * line is a `Ta' or tab, then we'll get
1038: * ARGS_EOLN, so we must be smart enough to
1039: * reopen our scope if the last parse was a
1040: * phrase or partial phrase.
1041: */
1042: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1043: return(0);
1044: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1045: return(0);
1046: body = m->last;
1.1 kristaps 1047: break;
1.41 schwarze 1048: }
1049:
1.46 schwarze 1050: /*
1051: * Emit leading punctuation (i.e., punctuation before
1052: * the MDOC_HEAD) for non-phrase types.
1053: */
1.32 schwarze 1054:
1.37 schwarze 1055: if (NULL == head &&
1.46 schwarze 1056: ARGS_PEND != ac &&
1.37 schwarze 1057: ARGS_PHRASE != ac &&
1.36 schwarze 1058: ARGS_PPHRASE != ac &&
1059: ARGS_QWORD != ac &&
1.40 schwarze 1060: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1061: if ( ! mdoc_word_alloc(m, line, la, p))
1062: return(0);
1063: continue;
1064: }
1065:
1.46 schwarze 1066: /* Open a head if one hasn't been opened. */
1.32 schwarze 1067:
1.46 schwarze 1068: if (NULL == head) {
1.32 schwarze 1069: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1070: return(0);
1.29 schwarze 1071: head = m->last;
1.32 schwarze 1072: }
1073:
1.46 schwarze 1074: if (ARGS_PHRASE == ac ||
1075: ARGS_PEND == ac ||
1076: ARGS_PPHRASE == ac) {
1077: /*
1078: * If we haven't opened a body yet, rewind the
1079: * head; if we have, rewind that instead.
1080: */
1081:
1082: mtt = body ? MDOC_BODY : MDOC_HEAD;
1083: if ( ! rew_sub(mtt, m, tok, line, ppos))
1084: return(0);
1085:
1086: /* Then allocate our body context. */
1087:
1088: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1089: return(0);
1090: body = m->last;
1091:
1092: /*
1093: * Process phrases: set whether we're in a
1094: * partial-phrase (this effects line handling)
1095: * then call down into the phrase parser.
1096: */
1097:
1.41 schwarze 1098: if (ARGS_PPHRASE == ac)
1099: m->flags |= MDOC_PPHRASE;
1.46 schwarze 1100: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1101: m->flags |= MDOC_PPHRASE;
1102:
1103: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1104: return(0);
1.46 schwarze 1105:
1.41 schwarze 1106: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1107: continue;
1108: }
1109:
1.36 schwarze 1110: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1111:
1112: if (MDOC_MAX == ntok) {
1113: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1114: return(0);
1.36 schwarze 1115: continue;
1.32 schwarze 1116: }
1.36 schwarze 1117:
1118: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1119: return(0);
1.36 schwarze 1120: break;
1.32 schwarze 1121: }
1.1 kristaps 1122:
1.32 schwarze 1123: if (NULL == head) {
1124: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1125: return(0);
1.32 schwarze 1126: head = m->last;
1.1 kristaps 1127: }
1128:
1.43 schwarze 1129: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1130: return(0);
1.12 schwarze 1131:
1.34 schwarze 1132: /* If we've already opened our body, exit now. */
1.32 schwarze 1133:
1.34 schwarze 1134: if (NULL != body)
1.46 schwarze 1135: goto out;
1.29 schwarze 1136:
1137: /*
1.34 schwarze 1138: * If there is an open (i.e., unvalidated) sub-block requiring
1139: * explicit close-out, postpone switching the current block from
1140: * head to body until the rew_sub() call closing out that
1141: * sub-block.
1.29 schwarze 1142: */
1143: for (n = m->last; n && n != head; n = n->parent) {
1.34 schwarze 1144: if (MDOC_BLOCK == n->type &&
1145: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1146: ! (MDOC_VALID & 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)) {
1.59 schwarze 1284: make_pending(n, tok, m, line, ppos);
1.47 schwarze 1285: if ( ! mdoc_endbody_alloc(m, line, ppos,
1286: tok, body, ENDBODY_NOSPACE))
1287: return(0);
1288: return(1);
1289: }
1290: }
1291:
1.22 schwarze 1292: /*
1293: * If we can't rewind to our body, then our scope has already
1294: * been closed by another macro (like `Oc' closing `Op'). This
1295: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.34 schwarze 1296: * crufty use of `Op' breakage.
1.1 kristaps 1297: */
1.51 schwarze 1298: if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPENEST,
1299: line, ppos, "%s broken", mdoc_macronames[tok]))
1.22 schwarze 1300: return(0);
1.32 schwarze 1301:
1.47 schwarze 1302: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 schwarze 1303: return(0);
1.1 kristaps 1304:
1.22 schwarze 1305: /* Standard appending of delimiters. */
1.1 kristaps 1306:
1.43 schwarze 1307: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1308: return(0);
1309:
1.22 schwarze 1310: /* Rewind scope, if applicable. */
1.1 kristaps 1311:
1.47 schwarze 1312: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1313: return(0);
1314:
1315: return(1);
1316: }
1317:
1318:
1319: static int
1320: blk_part_exp(MACRO_PROT_ARGS)
1321: {
1.37 schwarze 1322: int la, nl;
1.36 schwarze 1323: enum margserr ac;
1.32 schwarze 1324: struct mdoc_node *head; /* keep track of head */
1325: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1326: char *p;
1.36 schwarze 1327: enum mdoct ntok;
1.1 kristaps 1328:
1.37 schwarze 1329: nl = MDOC_NEWLINE & m->flags;
1330:
1.32 schwarze 1331: /*
1332: * The opening of an explicit macro having zero or more leading
1333: * punctuation nodes; a head with optional single element (the
1334: * case of `Eo'); and a body that may be empty.
1335: */
1.22 schwarze 1336:
1337: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1338: return(0);
1.22 schwarze 1339:
1.32 schwarze 1340: for (head = body = NULL; ; ) {
1.22 schwarze 1341: la = *pos;
1.36 schwarze 1342: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1343:
1.36 schwarze 1344: if (ARGS_ERROR == ac)
1.1 kristaps 1345: return(0);
1.36 schwarze 1346: if (ARGS_PUNCT == ac)
1.1 kristaps 1347: break;
1.36 schwarze 1348: if (ARGS_EOLN == ac)
1.1 kristaps 1349: break;
1350:
1.32 schwarze 1351: /* Flush out leading punctuation. */
1352:
1.36 schwarze 1353: if (NULL == head && ARGS_QWORD != ac &&
1.40 schwarze 1354: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1355: assert(NULL == body);
1356: if ( ! mdoc_word_alloc(m, line, la, p))
1357: return(0);
1358: continue;
1359: }
1360:
1361: if (NULL == head) {
1362: assert(NULL == body);
1363: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1364: return(0);
1.32 schwarze 1365: head = m->last;
1.1 kristaps 1366: }
1367:
1.32 schwarze 1368: /*
1369: * `Eo' gobbles any data into the head, but most other
1370: * macros just immediately close out and begin the body.
1371: */
1372:
1373: if (NULL == body) {
1374: assert(head);
1375: /* No check whether it's a macro! */
1376: if (MDOC_Eo == tok)
1377: if ( ! mdoc_word_alloc(m, line, la, p))
1378: return(0);
1379:
1.22 schwarze 1380: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1381: return(0);
1.22 schwarze 1382: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1383: return(0);
1.32 schwarze 1384: body = m->last;
1385:
1386: if (MDOC_Eo == tok)
1387: continue;
1388: }
1389:
1390: assert(NULL != head && NULL != body);
1391:
1.36 schwarze 1392: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1393:
1394: if (MDOC_MAX == ntok) {
1395: if ( ! mdoc_word_alloc(m, line, la, p))
1.32 schwarze 1396: return(0);
1.36 schwarze 1397: continue;
1.1 kristaps 1398: }
1.32 schwarze 1399:
1.36 schwarze 1400: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1401: return(0);
1.36 schwarze 1402: break;
1.1 kristaps 1403: }
1404:
1.32 schwarze 1405: /* Clean-up to leave in a consistent state. */
1406:
1407: if (NULL == head) {
1408: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1409: return(0);
1410: head = m->last;
1411: }
1.22 schwarze 1412:
1.32 schwarze 1413: if (NULL == body) {
1.22 schwarze 1414: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1415: return(0);
1.22 schwarze 1416: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1417: return(0);
1.32 schwarze 1418: body = m->last;
1.1 kristaps 1419: }
1420:
1.22 schwarze 1421: /* Standard appending of delimiters. */
1422:
1.37 schwarze 1423: if ( ! nl)
1.1 kristaps 1424: return(1);
1.22 schwarze 1425: return(append_delims(m, line, pos, buf));
1.1 kristaps 1426: }
1427:
1428:
1.37 schwarze 1429: /* ARGSUSED */
1.1 kristaps 1430: static int
1431: in_line_argn(MACRO_PROT_ARGS)
1432: {
1.37 schwarze 1433: int la, flushed, j, maxargs, nl;
1.36 schwarze 1434: enum margserr ac;
1435: enum margverr av;
1436: struct mdoc_arg *arg;
1437: char *p;
1438: enum mdoct ntok;
1.1 kristaps 1439:
1.37 schwarze 1440: nl = MDOC_NEWLINE & m->flags;
1441:
1.32 schwarze 1442: /*
1443: * A line macro that has a fixed number of arguments (maxargs).
1444: * Only open the scope once the first non-leading-punctuation is
1445: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1446: * keep it open until the maximum number of arguments are
1447: * exhausted.
1448: */
1.1 kristaps 1449:
1450: switch (tok) {
1451: case (MDOC_Ap):
1452: /* FALLTHROUGH */
1453: case (MDOC_No):
1454: /* FALLTHROUGH */
1455: case (MDOC_Ns):
1456: /* FALLTHROUGH */
1457: case (MDOC_Ux):
1458: maxargs = 0;
1459: break;
1.28 schwarze 1460: case (MDOC_Xr):
1461: maxargs = 2;
1462: break;
1.1 kristaps 1463: default:
1464: maxargs = 1;
1465: break;
1466: }
1467:
1.32 schwarze 1468: for (arg = NULL; ; ) {
1.22 schwarze 1469: la = *pos;
1.36 schwarze 1470: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1471:
1.36 schwarze 1472: if (ARGV_WORD == av) {
1.22 schwarze 1473: *pos = la;
1.1 kristaps 1474: break;
1475: }
1476:
1.36 schwarze 1477: if (ARGV_EOLN == av)
1.1 kristaps 1478: break;
1.36 schwarze 1479: if (ARGV_ARG == av)
1.1 kristaps 1480: continue;
1481:
1482: mdoc_argv_free(arg);
1483: return(0);
1484: }
1485:
1.32 schwarze 1486: for (flushed = j = 0; ; ) {
1.22 schwarze 1487: la = *pos;
1.36 schwarze 1488: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1489:
1.36 schwarze 1490: if (ARGS_ERROR == ac)
1.1 kristaps 1491: return(0);
1.36 schwarze 1492: if (ARGS_PUNCT == ac)
1.1 kristaps 1493: break;
1.36 schwarze 1494: if (ARGS_EOLN == ac)
1.1 kristaps 1495: break;
1496:
1.32 schwarze 1497: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1498: ARGS_QWORD != ac &&
1.40 schwarze 1499: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1500: if ( ! mdoc_word_alloc(m, line, la, p))
1501: return(0);
1502: continue;
1.40 schwarze 1503: } else if (0 == j)
1.32 schwarze 1504: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1505: return(0);
1506:
1507: if (j == maxargs && ! flushed) {
1508: if ( ! rew_elem(m, tok))
1509: return(0);
1510: flushed = 1;
1511: }
1512:
1.36 schwarze 1513: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1514:
1515: if (MDOC_MAX != ntok) {
1.22 schwarze 1516: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1517: return(0);
1518: flushed = 1;
1.36 schwarze 1519: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1520: return(0);
1.32 schwarze 1521: j++;
1.1 kristaps 1522: break;
1523: }
1524:
1525: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1526: ARGS_QWORD != ac &&
1.40 schwarze 1527: ! flushed &&
1528: DELIM_NONE != mdoc_isdelim(p)) {
1.22 schwarze 1529: if ( ! rew_elem(m, tok))
1.1 kristaps 1530: return(0);
1531: flushed = 1;
1532: }
1.28 schwarze 1533:
1534: /*
1535: * XXX: this is a hack to work around groff's ugliness
1536: * as regards `Xr' and extraneous arguments. It should
1537: * ideally be deprecated behaviour, but because this is
1538: * code is no here, it's unlikely to be removed.
1539: */
1540: if (MDOC_Xr == tok && j == maxargs) {
1.32 schwarze 1541: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.28 schwarze 1542: return(0);
1543: if ( ! rew_elem(m, MDOC_Ns))
1544: return(0);
1545: }
1546:
1.22 schwarze 1547: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1548: return(0);
1.32 schwarze 1549: j++;
1.1 kristaps 1550: }
1551:
1.32 schwarze 1552: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1553: return(0);
1554:
1555: /* Close out in a consistent state. */
1.22 schwarze 1556:
1557: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1558: return(0);
1.37 schwarze 1559: if ( ! nl)
1.1 kristaps 1560: return(1);
1.22 schwarze 1561: return(append_delims(m, line, pos, buf));
1.1 kristaps 1562: }
1563:
1564:
1565: static int
1566: in_line_eoln(MACRO_PROT_ARGS)
1567: {
1.36 schwarze 1568: int la;
1569: enum margserr ac;
1570: enum margverr av;
1571: struct mdoc_arg *arg;
1572: char *p;
1573: enum mdoct ntok;
1.1 kristaps 1574:
1575: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1576:
1.53 schwarze 1577: if (tok == MDOC_Pp)
1578: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1579:
1.22 schwarze 1580: /* Parse macro arguments. */
1.1 kristaps 1581:
1.22 schwarze 1582: for (arg = NULL; ; ) {
1.1 kristaps 1583: la = *pos;
1.36 schwarze 1584: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1585:
1.36 schwarze 1586: if (ARGV_WORD == av) {
1.1 kristaps 1587: *pos = la;
1588: break;
1589: }
1.36 schwarze 1590: if (ARGV_EOLN == av)
1.1 kristaps 1591: break;
1.36 schwarze 1592: if (ARGV_ARG == av)
1.1 kristaps 1593: continue;
1594:
1595: mdoc_argv_free(arg);
1596: return(0);
1597: }
1598:
1.22 schwarze 1599: /* Open element scope. */
1600:
1601: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1602: return(0);
1603:
1.22 schwarze 1604: /* Parse argument terms. */
1.1 kristaps 1605:
1606: for (;;) {
1607: la = *pos;
1.36 schwarze 1608: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1609:
1.36 schwarze 1610: if (ARGS_ERROR == ac)
1.1 kristaps 1611: return(0);
1.36 schwarze 1612: if (ARGS_EOLN == ac)
1.1 kristaps 1613: break;
1614:
1.36 schwarze 1615: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1616:
1.36 schwarze 1617: if (MDOC_MAX == ntok) {
1618: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1619: return(0);
1.36 schwarze 1620: continue;
1621: }
1.1 kristaps 1622:
1.36 schwarze 1623: if ( ! rew_elem(m, tok))
1.1 kristaps 1624: return(0);
1.36 schwarze 1625: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1626: }
1627:
1.22 schwarze 1628: /* Close out (no delimiters). */
1629:
1630: return(rew_elem(m, tok));
1.28 schwarze 1631: }
1632:
1633:
1634: /* ARGSUSED */
1635: static int
1636: ctx_synopsis(MACRO_PROT_ARGS)
1637: {
1.37 schwarze 1638: int nl;
1639:
1640: nl = MDOC_NEWLINE & m->flags;
1.28 schwarze 1641:
1642: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.53 schwarze 1643: if ( ! (MDOC_SYNOPSIS & m->flags))
1.28 schwarze 1644: return(in_line(m, tok, line, ppos, pos, buf));
1645:
1646: /* If we're a nested call, same place. */
1.37 schwarze 1647: if ( ! nl)
1.28 schwarze 1648: return(in_line(m, tok, line, ppos, pos, buf));
1649:
1650: /*
1651: * XXX: this will open a block scope; however, if later we end
1652: * up formatting the block scope, then child nodes will inherit
1653: * the formatting. Be careful.
1654: */
1.51 schwarze 1655: if (MDOC_Nm == tok)
1656: return(blk_full(m, tok, line, ppos, pos, buf));
1657: assert(MDOC_Vt == tok);
1.28 schwarze 1658: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.1 kristaps 1659: }
1660:
1661:
1662: /* ARGSUSED */
1663: static int
1664: obsolete(MACRO_PROT_ARGS)
1665: {
1666:
1.44 schwarze 1667: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1668: }
1669:
1670:
1.17 schwarze 1671: /*
1672: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1673: * They're unusual because they're basically free-form text until a
1674: * macro is encountered.
1675: */
1.1 kristaps 1676: static int
1.46 schwarze 1677: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1678: {
1.36 schwarze 1679: int la, pos;
1.46 schwarze 1680: enum margserr ac;
1.36 schwarze 1681: enum mdoct ntok;
1682: char *p;
1.1 kristaps 1683:
1.17 schwarze 1684: for (pos = ppos; ; ) {
1685: la = pos;
1.1 kristaps 1686:
1.46 schwarze 1687: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1688:
1.46 schwarze 1689: if (ARGS_ERROR == ac)
1.17 schwarze 1690: return(0);
1.46 schwarze 1691: if (ARGS_EOLN == ac)
1.17 schwarze 1692: break;
1.1 kristaps 1693:
1.46 schwarze 1694: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1695:
1.36 schwarze 1696: if (MDOC_MAX == ntok) {
1697: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1698: return(0);
1.36 schwarze 1699: continue;
1700: }
1.1 kristaps 1701:
1.36 schwarze 1702: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1703: return(0);
1.36 schwarze 1704: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1705: }
1706:
1707: return(1);
1708: }
1.17 schwarze 1709:
1710:
1.46 schwarze 1711: /* ARGSUSED */
1712: static int
1713: phrase_ta(MACRO_PROT_ARGS)
1714: {
1715: int la;
1716: enum mdoct ntok;
1717: enum margserr ac;
1718: char *p;
1719:
1720: /*
1721: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1722: * it should simply error out with ARGSLOST.
1723: */
1724:
1725: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1726: return(0);
1727: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1728: return(0);
1729:
1730: for (;;) {
1731: la = *pos;
1732: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1733:
1734: if (ARGS_ERROR == ac)
1735: return(0);
1736: if (ARGS_EOLN == ac)
1737: break;
1738:
1739: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1740:
1741: if (MDOC_MAX == ntok) {
1742: if ( ! mdoc_word_alloc(m, line, la, p))
1743: return(0);
1744: continue;
1745: }
1746:
1747: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1748: return(0);
1749: return(append_delims(m, line, pos, buf));
1750: }
1751:
1752: return(1);
1753: }
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