Annotation of mandoc/mdoc_macro.c, Revision 1.103
1.103 ! kristaps 1: /* $Id: mdoc_macro.c,v 1.102 2011/03/17 09:16:38 kristaps Exp $ */
1.1 kristaps 2: /*
1.92 schwarze 3: * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
4: * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.8 kristaps 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.40 kristaps 18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.1 kristaps 22: #include <assert.h>
23: #include <ctype.h>
24: #include <stdlib.h>
25: #include <stdio.h>
26: #include <string.h>
1.38 kristaps 27: #include <time.h>
1.1 kristaps 28:
1.68 kristaps 29: #include "mandoc.h"
1.1 kristaps 30: #include "libmdoc.h"
1.64 kristaps 31: #include "libmandoc.h"
1.1 kristaps 32:
1.84 schwarze 33: enum rew { /* see rew_dohalt() */
34: REWIND_NONE,
35: REWIND_THIS,
36: REWIND_MORE,
1.98 kristaps 37: REWIND_FORCE,
1.84 schwarze 38: REWIND_LATER,
1.91 kristaps 39: REWIND_ERROR
1.51 kristaps 40: };
1.1 kristaps 41:
1.53 kristaps 42: static int blk_full(MACRO_PROT_ARGS);
43: static int blk_exp_close(MACRO_PROT_ARGS);
44: static int blk_part_exp(MACRO_PROT_ARGS);
45: static int blk_part_imp(MACRO_PROT_ARGS);
46: static int ctx_synopsis(MACRO_PROT_ARGS);
47: static int in_line_eoln(MACRO_PROT_ARGS);
48: static int in_line_argn(MACRO_PROT_ARGS);
49: static int in_line(MACRO_PROT_ARGS);
50: static int obsolete(MACRO_PROT_ARGS);
1.75 kristaps 51: static int phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 52:
53: static int append_delims(struct mdoc *,
54: int, int *, char *);
1.58 kristaps 55: static enum mdoct lookup(enum mdoct, const char *);
1.53 kristaps 56: static enum mdoct lookup_raw(const char *);
1.85 schwarze 57: static int make_pending(struct mdoc_node *, enum mdoct,
1.83 schwarze 58: struct mdoc *, int, int);
1.82 kristaps 59: static int phrase(struct mdoc *, int, int, char *);
1.53 kristaps 60: static enum mdoct rew_alt(enum mdoct);
61: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
62: const struct mdoc_node *);
63: static int rew_elem(struct mdoc *, enum mdoct);
64: static int rew_last(struct mdoc *,
65: const struct mdoc_node *);
66: static int rew_sub(enum mdoc_type, struct mdoc *,
67: enum mdoct, int, int);
1.1 kristaps 68:
69: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.13 kristaps 70: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
1.1 kristaps 71: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
72: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
73: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
74: { blk_full, 0 }, /* Sh */
75: { blk_full, 0 }, /* Ss */
1.21 kristaps 76: { in_line_eoln, 0 }, /* Pp */
1.1 kristaps 77: { blk_part_imp, MDOC_PARSED }, /* D1 */
78: { blk_part_imp, MDOC_PARSED }, /* Dl */
79: { blk_full, MDOC_EXPLICIT }, /* Bd */
80: { blk_exp_close, MDOC_EXPLICIT }, /* Ed */
81: { blk_full, MDOC_EXPLICIT }, /* Bl */
82: { blk_exp_close, MDOC_EXPLICIT }, /* El */
83: { blk_full, MDOC_PARSED }, /* It */
84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.10 kristaps 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.23 kristaps 87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
1.1 kristaps 88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
92: { in_line_eoln, 0 }, /* Ex */
93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
94: { in_line_eoln, 0 }, /* Fd */
95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
1.11 kristaps 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.18 kristaps 99: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 100: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.19 kristaps 101: { blk_full, 0 }, /* Nd */
1.88 schwarze 102: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 103: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
104: { obsolete, 0 }, /* Ot */
105: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
106: { in_line_eoln, 0 }, /* Rv */
107: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
108: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.41 kristaps 109: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 110: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.1 kristaps 111: { in_line_eoln, 0 }, /* %A */
112: { in_line_eoln, 0 }, /* %B */
113: { in_line_eoln, 0 }, /* %D */
114: { in_line_eoln, 0 }, /* %I */
115: { in_line_eoln, 0 }, /* %J */
116: { in_line_eoln, 0 }, /* %N */
117: { in_line_eoln, 0 }, /* %O */
118: { in_line_eoln, 0 }, /* %P */
119: { in_line_eoln, 0 }, /* %R */
120: { in_line_eoln, 0 }, /* %T */
121: { in_line_eoln, 0 }, /* %V */
122: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
123: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
124: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
125: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
126: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
127: { blk_full, MDOC_EXPLICIT }, /* Bf */
128: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
129: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
130: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
131: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
132: { in_line_eoln, 0 }, /* Db */
133: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
134: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
135: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
136: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
137: { blk_exp_close, MDOC_EXPLICIT }, /* Ef */
138: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
139: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 141: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.95 schwarze 142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* No */
143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Ns */
1.1 kristaps 144: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
145: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
146: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.52 kristaps 147: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.1 kristaps 148: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
149: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
150: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
151: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
152: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
153: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
154: { blk_exp_close, MDOC_EXPLICIT }, /* Re */
155: { blk_full, MDOC_EXPLICIT }, /* Rs */
156: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
157: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
158: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
159: { in_line_eoln, 0 }, /* Sm */
160: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
161: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
162: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
163: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
164: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
165: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
166: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
167: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
168: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
169: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
170: { blk_full, MDOC_EXPLICIT }, /* Bk */
171: { blk_exp_close, MDOC_EXPLICIT }, /* Ek */
172: { in_line_eoln, 0 }, /* Bt */
173: { in_line_eoln, 0 }, /* Hf */
174: { obsolete, 0 }, /* Fr */
175: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 176: { in_line, 0 }, /* Lb */
1.21 kristaps 177: { in_line_eoln, 0 }, /* Lp */
1.12 kristaps 178: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
179: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
1.1 kristaps 180: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
181: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
182: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
183: { in_line_eoln, 0 }, /* %C */
184: { obsolete, 0 }, /* Es */
185: { obsolete, 0 }, /* En */
186: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
187: { in_line_eoln, 0 }, /* %Q */
1.20 kristaps 188: { in_line_eoln, 0 }, /* br */
189: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 190: { in_line_eoln, 0 }, /* %U */
1.75 kristaps 191: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
1.1 kristaps 192: };
193:
194: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
195:
196:
197: /*
198: * This is called at the end of parsing. It must traverse up the tree,
199: * closing out open [implicit] scopes. Obviously, open explicit scopes
200: * are errors.
201: */
202: int
1.32 kristaps 203: mdoc_macroend(struct mdoc *m)
1.1 kristaps 204: {
205: struct mdoc_node *n;
206:
207: /* Scan for open explicit scopes. */
208:
1.32 kristaps 209: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 210:
1.94 schwarze 211: for ( ; n; n = n->parent)
212: if (MDOC_BLOCK == n->type &&
213: MDOC_EXPLICIT & mdoc_macros[n->tok].flags)
214: mdoc_nmsg(m, n, MANDOCERR_SCOPEEXIT);
1.1 kristaps 215:
1.32 kristaps 216: /* Rewind to the first. */
217:
218: return(rew_last(m, m->first));
1.1 kristaps 219: }
220:
1.32 kristaps 221:
222: /*
223: * Look up a macro from within a subsequent context.
224: */
1.53 kristaps 225: static enum mdoct
1.58 kristaps 226: lookup(enum mdoct from, const char *p)
1.28 kristaps 227: {
1.36 kristaps 228: /* FIXME: make -diag lists be un-PARSED. */
1.28 kristaps 229:
230: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
231: return(MDOC_MAX);
1.35 kristaps 232: return(lookup_raw(p));
1.28 kristaps 233: }
234:
235:
1.32 kristaps 236: /*
237: * Lookup a macro following the initial line macro.
238: */
1.53 kristaps 239: static enum mdoct
1.35 kristaps 240: lookup_raw(const char *p)
1.1 kristaps 241: {
1.58 kristaps 242: enum mdoct res;
1.1 kristaps 243:
1.34 kristaps 244: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.28 kristaps 245: return(MDOC_MAX);
246: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 247: return(res);
248: return(MDOC_MAX);
249: }
250:
251:
252: static int
1.32 kristaps 253: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 254: {
1.100 kristaps 255: struct mdoc_node *n, *np;
1.1 kristaps 256:
257: assert(to);
258: mdoc->next = MDOC_NEXT_SIBLING;
259:
260: /* LINTED */
261: while (mdoc->last != to) {
1.100 kristaps 262: /*
263: * Save the parent here, because we may delete the
264: * m->last node in the post-validation phase and reset
265: * it to m->last->parent, causing a step in the closing
266: * out to be lost.
267: */
268: np = mdoc->last->parent;
1.1 kristaps 269: if ( ! mdoc_valid_post(mdoc))
270: return(0);
1.99 kristaps 271: n = mdoc->last;
1.100 kristaps 272: mdoc->last = np;
1.1 kristaps 273: assert(mdoc->last);
1.99 kristaps 274: mdoc->last->last = n;
1.1 kristaps 275: }
276:
1.97 kristaps 277: return(mdoc_valid_post(mdoc));
1.1 kristaps 278: }
279:
280:
1.32 kristaps 281: /*
1.84 schwarze 282: * For a block closing macro, return the corresponding opening one.
283: * Otherwise, return the macro itself.
1.32 kristaps 284: */
1.47 kristaps 285: static enum mdoct
286: rew_alt(enum mdoct tok)
1.1 kristaps 287: {
288: switch (tok) {
289: case (MDOC_Ac):
290: return(MDOC_Ao);
291: case (MDOC_Bc):
292: return(MDOC_Bo);
293: case (MDOC_Brc):
294: return(MDOC_Bro);
295: case (MDOC_Dc):
296: return(MDOC_Do);
297: case (MDOC_Ec):
298: return(MDOC_Eo);
299: case (MDOC_Ed):
300: return(MDOC_Bd);
301: case (MDOC_Ef):
302: return(MDOC_Bf);
303: case (MDOC_Ek):
304: return(MDOC_Bk);
305: case (MDOC_El):
306: return(MDOC_Bl);
307: case (MDOC_Fc):
308: return(MDOC_Fo);
309: case (MDOC_Oc):
310: return(MDOC_Oo);
311: case (MDOC_Pc):
312: return(MDOC_Po);
313: case (MDOC_Qc):
314: return(MDOC_Qo);
315: case (MDOC_Re):
316: return(MDOC_Rs);
317: case (MDOC_Sc):
318: return(MDOC_So);
319: case (MDOC_Xc):
320: return(MDOC_Xo);
321: default:
1.84 schwarze 322: return(tok);
1.1 kristaps 323: }
324: /* NOTREACHED */
325: }
326:
327:
1.84 schwarze 328: /*
329: * Rewinding to tok, how do we have to handle *p?
330: * REWIND_NONE: *p would delimit tok, but no tok scope is open
331: * inside *p, so there is no need to rewind anything at all.
332: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
333: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.98 kristaps 334: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.84 schwarze 335: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
336: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 337: */
1.51 kristaps 338: static enum rew
1.47 kristaps 339: rew_dohalt(enum mdoct tok, enum mdoc_type type,
340: const struct mdoc_node *p)
1.1 kristaps 341: {
342:
1.86 schwarze 343: /*
344: * No matching token, no delimiting block, no broken block.
345: * This can happen when full implicit macros are called for
346: * the first time but try to rewind their previous
347: * instance anyway.
348: */
1.1 kristaps 349: if (MDOC_ROOT == p->type)
1.84 schwarze 350: return(MDOC_BLOCK == type &&
351: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
352: REWIND_ERROR : REWIND_NONE);
1.86 schwarze 353:
354: /*
355: * When starting to rewind, skip plain text
356: * and nodes that have already been rewound.
357: */
1.84 schwarze 358: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
359: return(REWIND_MORE);
360:
1.86 schwarze 361: /*
362: * The easiest case: Found a matching token.
363: * This applies to both blocks and elements.
364: */
1.84 schwarze 365: tok = rew_alt(tok);
366: if (tok == p->tok)
367: return(p->end ? REWIND_NONE :
368: type == p->type ? REWIND_THIS : REWIND_MORE);
369:
1.86 schwarze 370: /*
371: * While elements do require rewinding for themselves,
372: * they never affect rewinding of other nodes.
373: */
1.84 schwarze 374: if (MDOC_ELEM == p->type)
375: return(REWIND_MORE);
1.1 kristaps 376:
1.86 schwarze 377: /*
378: * Blocks delimited by our target token get REWIND_MORE.
379: * Blocks delimiting our target token get REWIND_NONE.
380: */
1.1 kristaps 381: switch (tok) {
1.84 schwarze 382: case (MDOC_Bl):
383: if (MDOC_It == p->tok)
384: return(REWIND_MORE);
1.1 kristaps 385: break;
386: case (MDOC_It):
387: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.84 schwarze 388: return(REWIND_NONE);
1.1 kristaps 389: break;
1.84 schwarze 390: /*
391: * XXX Badly nested block handling still fails badly
392: * when one block is breaking two blocks of the same type.
393: * This is an incomplete and extremely ugly workaround,
394: * required to let the OpenBSD tree build.
395: */
396: case (MDOC_Oo):
397: if (MDOC_Op == p->tok)
398: return(REWIND_MORE);
1.1 kristaps 399: break;
1.88 schwarze 400: case (MDOC_Nm):
401: return(REWIND_NONE);
1.19 kristaps 402: case (MDOC_Nd):
403: /* FALLTHROUGH */
1.1 kristaps 404: case (MDOC_Ss):
405: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.84 schwarze 406: return(REWIND_NONE);
1.1 kristaps 407: /* FALLTHROUGH */
408: case (MDOC_Sh):
1.84 schwarze 409: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
410: MDOC_Sh == p->tok)
411: return(REWIND_MORE);
1.1 kristaps 412: break;
413: default:
414: break;
415: }
416:
1.86 schwarze 417: /*
418: * Default block rewinding rules.
1.88 schwarze 419: * In particular, always skip block end markers,
420: * and let all blocks rewind Nm children.
1.86 schwarze 421: */
1.88 schwarze 422: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
423: (MDOC_BLOCK == p->type &&
1.86 schwarze 424: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
425: return(REWIND_MORE);
426:
427: /*
1.98 kristaps 428: * By default, closing out full blocks
429: * forces closing of broken explicit blocks,
430: * while closing out partial blocks
431: * allows delayed rewinding by default.
1.86 schwarze 432: */
1.98 kristaps 433: return (&blk_full == mdoc_macros[tok].fp ?
434: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 435: }
436:
437:
438: static int
1.47 kristaps 439: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 440: {
441: struct mdoc_node *n;
442:
443: n = mdoc->last;
444: if (MDOC_ELEM != n->type)
445: n = n->parent;
446: assert(MDOC_ELEM == n->type);
447: assert(tok == n->tok);
448:
449: return(rew_last(mdoc, n));
450: }
451:
452:
1.83 schwarze 453: /*
454: * We are trying to close a block identified by tok,
455: * but the child block *broken is still open.
456: * Thus, postpone closing the tok block
457: * until the rew_sub call closing *broken.
458: */
459: static int
460: make_pending(struct mdoc_node *broken, enum mdoct tok,
461: struct mdoc *m, int line, int ppos)
462: {
463: struct mdoc_node *breaker;
464:
465: /*
466: * Iterate backwards, searching for the block matching tok,
467: * that is, the block breaking the *broken block.
468: */
469: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
470:
471: /*
472: * If the *broken block had already been broken before
473: * and we encounter its breaker, make the tok block
474: * pending on the inner breaker.
475: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
476: * becomes "[A broken=[B [C->B B] tok=A] C]"
477: * and finally "[A [B->A [C->B B] A] C]".
478: */
479: if (breaker == broken->pending) {
480: broken = breaker;
481: continue;
482: }
483:
1.84 schwarze 484: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.83 schwarze 485: continue;
486: if (MDOC_BODY == broken->type)
487: broken = broken->parent;
488:
489: /*
490: * Found the breaker.
491: * If another, outer breaker is already pending on
492: * the *broken block, we must not clobber the link
493: * to the outer breaker, but make it pending on the
494: * new, now inner breaker.
495: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
496: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
497: * and finally "[A [B->A [C->B A] B] C]".
498: */
499: if (broken->pending) {
500: struct mdoc_node *taker;
501:
502: /*
503: * If the breaker had also been broken before,
504: * it cannot take on the outer breaker itself,
505: * but must hand it on to its own breakers.
506: * Graphically, this is the following situation:
507: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
508: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
509: */
510: taker = breaker;
511: while (taker->pending)
512: taker = taker->pending;
513: taker->pending = broken->pending;
514: }
515: broken->pending = breaker;
1.88 schwarze 516: mdoc_vmsg(m, MANDOCERR_SCOPENEST, line, ppos,
517: "%s breaks %s", mdoc_macronames[tok],
518: mdoc_macronames[broken->tok]);
1.83 schwarze 519: return(1);
520: }
521:
522: /*
523: * Found no matching block for tok.
524: * Are you trying to close a block that is not open?
525: */
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;
1.98 kristaps 543: case (REWIND_FORCE):
544: mdoc_vmsg(m, MANDOCERR_SCOPEBROKEN, line, ppos,
545: "%s breaks %s", mdoc_macronames[tok],
546: mdoc_macronames[n->tok]);
547: /* FALLTHROUGH */
1.84 schwarze 548: case (REWIND_MORE):
549: n = n->parent;
550: continue;
551: case (REWIND_LATER):
1.98 kristaps 552: if (make_pending(n, tok, m, line, ppos) ||
553: MDOC_BLOCK != t)
554: return(1);
555: /* FALLTHROUGH */
1.84 schwarze 556: case (REWIND_ERROR):
1.98 kristaps 557: mdoc_pmsg(m, line, ppos, MANDOCERR_NOSCOPE);
558: return(1);
1.32 kristaps 559: }
1.84 schwarze 560: break;
1.1 kristaps 561: }
562:
563: assert(n);
1.47 kristaps 564: if ( ! rew_last(m, n))
565: return(0);
566:
567: /*
1.83 schwarze 568: * The current block extends an enclosing block.
569: * Now that the current block ends, close the enclosing block, too.
1.47 kristaps 570: */
1.83 schwarze 571: while (NULL != (n = n->pending)) {
1.47 kristaps 572: if ( ! rew_last(m, n))
573: return(0);
1.83 schwarze 574: if (MDOC_HEAD == n->type &&
575: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.47 kristaps 576: return(0);
577: }
578:
579: return(1);
1.1 kristaps 580: }
581:
582:
583: static int
1.66 kristaps 584: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 585: {
1.66 kristaps 586: int la;
1.55 kristaps 587: enum margserr ac;
1.1 kristaps 588: char *p;
589:
1.66 kristaps 590: if ('\0' == buf[*pos])
1.1 kristaps 591: return(1);
592:
593: for (;;) {
1.66 kristaps 594: la = *pos;
595: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 596:
1.53 kristaps 597: if (ARGS_ERROR == ac)
1.1 kristaps 598: return(0);
1.53 kristaps 599: else if (ARGS_EOLN == ac)
1.1 kristaps 600: break;
1.66 kristaps 601:
1.102 kristaps 602: assert(DELIM_NONE != mandoc_isdelim(p));
1.66 kristaps 603: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 604: return(0);
1.66 kristaps 605:
606: /*
607: * If we encounter end-of-sentence symbols, then trigger
608: * the double-space.
609: *
610: * XXX: it's easy to allow this to propogate outward to
611: * the last symbol, such that `. )' will cause the
612: * correct double-spacing. However, (1) groff isn't
613: * smart enough to do this and (2) it would require
614: * knowing which symbols break this behaviour, for
615: * example, `. ;' shouldn't propogate the double-space.
616: */
1.93 schwarze 617: if (mandoc_eos(p, strlen(p), 0))
1.66 kristaps 618: m->last->flags |= MDOC_EOS;
1.1 kristaps 619: }
620:
621: return(1);
622: }
623:
624:
625: /*
626: * Close out block partial/full explicit.
627: */
628: static int
629: blk_exp_close(MACRO_PROT_ARGS)
630: {
1.83 schwarze 631: struct mdoc_node *body; /* Our own body. */
632: struct mdoc_node *later; /* A sub-block starting later. */
633: struct mdoc_node *n; /* For searching backwards. */
634:
1.60 kristaps 635: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 636: enum margserr ac;
1.83 schwarze 637: enum mdoct atok, ntok;
1.1 kristaps 638: char *p;
639:
1.60 kristaps 640: nl = MDOC_NEWLINE & m->flags;
641:
1.1 kristaps 642: switch (tok) {
643: case (MDOC_Ec):
644: maxargs = 1;
645: break;
646: default:
647: maxargs = 0;
648: break;
649: }
650:
1.83 schwarze 651: /*
652: * Search backwards for beginnings of blocks,
653: * both of our own and of pending sub-blocks.
654: */
655: atok = rew_alt(tok);
656: body = later = NULL;
657: for (n = m->last; n; n = n->parent) {
658: if (MDOC_VALID & n->flags)
659: continue;
660:
661: /* Remember the start of our own body. */
662: if (MDOC_BODY == n->type && atok == n->tok) {
1.87 kristaps 663: if (ENDBODY_NOT == n->end)
1.83 schwarze 664: body = n;
665: continue;
666: }
667:
1.88 schwarze 668: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.83 schwarze 669: continue;
670: if (atok == n->tok) {
671: assert(body);
672:
673: /*
674: * Found the start of our own block.
675: * When there is no pending sub block,
676: * just proceed to closing out.
677: */
678: if (NULL == later)
679: break;
680:
681: /*
682: * When there is a pending sub block,
683: * postpone closing out the current block
684: * until the rew_sub() closing out the sub-block.
685: */
1.98 kristaps 686: make_pending(later, tok, m, line, ppos);
1.83 schwarze 687:
688: /*
689: * Mark the place where the formatting - but not
690: * the scope - of the current block ends.
691: */
692: if ( ! mdoc_endbody_alloc(m, line, ppos,
693: atok, body, ENDBODY_SPACE))
694: return(0);
695: break;
696: }
697:
698: /*
699: * When finding an open sub block, remember the last
700: * open explicit block, or, in case there are only
701: * implicit ones, the first open implicit block.
702: */
703: if (later &&
704: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
705: continue;
1.97 kristaps 706: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags)
1.83 schwarze 707: later = n;
708: }
709:
1.1 kristaps 710: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.68 kristaps 711: /* FIXME: do this in validate */
1.22 kristaps 712: if (buf[*pos])
1.103 ! kristaps 713: mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST);
1.22 kristaps 714:
1.32 kristaps 715: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 kristaps 716: return(0);
1.32 kristaps 717: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 718: }
719:
1.32 kristaps 720: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 721: return(0);
722:
1.83 schwarze 723: if (NULL == later && maxargs > 0)
1.32 kristaps 724: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 725: return(0);
726:
1.27 kristaps 727: for (flushed = j = 0; ; j++) {
1.1 kristaps 728: lastarg = *pos;
729:
730: if (j == maxargs && ! flushed) {
1.32 kristaps 731: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 732: return(0);
733: flushed = 1;
734: }
735:
1.53 kristaps 736: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 737:
1.53 kristaps 738: if (ARGS_ERROR == ac)
1.1 kristaps 739: return(0);
1.53 kristaps 740: if (ARGS_PUNCT == ac)
1.1 kristaps 741: break;
1.53 kristaps 742: if (ARGS_EOLN == ac)
1.1 kristaps 743: break;
744:
1.54 kristaps 745: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
746:
747: if (MDOC_MAX == ntok) {
748: if ( ! mdoc_word_alloc(m, line, lastarg, p))
1.1 kristaps 749: return(0);
1.54 kristaps 750: continue;
751: }
1.1 kristaps 752:
1.54 kristaps 753: if ( ! flushed) {
754: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
755: return(0);
756: flushed = 1;
757: }
1.82 kristaps 758: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 759: return(0);
1.54 kristaps 760: break;
1.1 kristaps 761: }
762:
1.32 kristaps 763: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 764: return(0);
765:
1.60 kristaps 766: if ( ! nl)
1.1 kristaps 767: return(1);
1.32 kristaps 768: return(append_delims(m, line, pos, buf));
1.1 kristaps 769: }
770:
771:
772: static int
773: in_line(MACRO_PROT_ARGS)
774: {
1.70 kristaps 775: int la, scope, cnt, nc, nl;
1.56 kristaps 776: enum margverr av;
1.53 kristaps 777: enum mdoct ntok;
1.55 kristaps 778: enum margserr ac;
1.67 schwarze 779: enum mdelim d;
1.53 kristaps 780: struct mdoc_arg *arg;
781: char *p;
1.1 kristaps 782:
1.60 kristaps 783: nl = MDOC_NEWLINE & m->flags;
784:
1.4 kristaps 785: /*
786: * Whether we allow ignored elements (those without content,
787: * usually because of reserved words) to squeak by.
788: */
1.45 kristaps 789:
1.4 kristaps 790: switch (tok) {
1.26 kristaps 791: case (MDOC_An):
792: /* FALLTHROUGH */
793: case (MDOC_Ar):
1.4 kristaps 794: /* FALLTHROUGH */
795: case (MDOC_Fl):
796: /* FALLTHROUGH */
1.96 kristaps 797: case (MDOC_Mt):
1.12 kristaps 798: /* FALLTHROUGH */
1.26 kristaps 799: case (MDOC_Nm):
800: /* FALLTHROUGH */
1.25 kristaps 801: case (MDOC_Pa):
1.4 kristaps 802: nc = 1;
803: break;
804: default:
805: nc = 0;
806: break;
807: }
808:
1.27 kristaps 809: for (arg = NULL;; ) {
1.1 kristaps 810: la = *pos;
1.56 kristaps 811: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 812:
1.56 kristaps 813: if (ARGV_WORD == av) {
1.1 kristaps 814: *pos = la;
815: break;
816: }
1.56 kristaps 817: if (ARGV_EOLN == av)
1.1 kristaps 818: break;
1.56 kristaps 819: if (ARGV_ARG == av)
1.1 kristaps 820: continue;
821:
822: mdoc_argv_free(arg);
823: return(0);
824: }
825:
1.70 kristaps 826: for (cnt = scope = 0;; ) {
1.1 kristaps 827: la = *pos;
1.53 kristaps 828: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 829:
1.53 kristaps 830: if (ARGS_ERROR == ac)
1.1 kristaps 831: return(0);
1.53 kristaps 832: if (ARGS_EOLN == ac)
1.1 kristaps 833: break;
1.53 kristaps 834: if (ARGS_PUNCT == ac)
1.1 kristaps 835: break;
836:
1.53 kristaps 837: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 838:
1.4 kristaps 839: /*
840: * In this case, we've located a submacro and must
841: * execute it. Close out scope, if open. If no
842: * elements have been generated, either create one (nc)
843: * or raise a warning.
844: */
1.1 kristaps 845:
1.53 kristaps 846: if (MDOC_MAX != ntok) {
1.70 kristaps 847: if (scope && ! rew_elem(m, tok))
1.1 kristaps 848: return(0);
1.4 kristaps 849: if (nc && 0 == cnt) {
1.32 kristaps 850: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 851: return(0);
1.32 kristaps 852: if ( ! rew_last(m, m->last))
1.12 kristaps 853: return(0);
1.7 kristaps 854: } else if ( ! nc && 0 == cnt) {
855: mdoc_argv_free(arg);
1.103 ! kristaps 856: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
1.7 kristaps 857: }
1.103 ! kristaps 858:
1.82 kristaps 859: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 860: return(0);
1.60 kristaps 861: if ( ! nl)
1.1 kristaps 862: return(1);
1.32 kristaps 863: return(append_delims(m, line, pos, buf));
1.29 kristaps 864: }
1.1 kristaps 865:
1.4 kristaps 866: /*
867: * Non-quote-enclosed punctuation. Set up our scope, if
868: * a word; rewind the scope, if a delimiter; then append
869: * the word.
870: */
1.1 kristaps 871:
1.102 kristaps 872: d = ARGS_QWORD == ac ? DELIM_NONE : mandoc_isdelim(p);
1.3 kristaps 873:
1.70 kristaps 874: if (DELIM_NONE != d) {
875: /*
876: * If we encounter closing punctuation, no word
877: * has been omitted, no scope is open, and we're
878: * allowed to have an empty element, then start
879: * a new scope. `Ar', `Fl', and `Li', only do
880: * this once per invocation. There may be more
881: * of these (all of them?).
882: */
883: if (0 == cnt && (nc || MDOC_Li == tok) &&
884: DELIM_CLOSE == d && ! scope) {
885: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
886: return(0);
887: if (MDOC_Ar == tok || MDOC_Li == tok ||
888: MDOC_Fl == tok)
889: cnt++;
890: scope = 1;
891: }
892: /*
893: * Close out our scope, if one is open, before
894: * any punctuation.
895: */
896: if (scope && ! rew_elem(m, tok))
1.1 kristaps 897: return(0);
1.70 kristaps 898: scope = 0;
899: } else if ( ! scope) {
1.32 kristaps 900: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 901: return(0);
1.70 kristaps 902: scope = 1;
1.1 kristaps 903: }
904:
1.67 schwarze 905: if (DELIM_NONE == d)
1.3 kristaps 906: cnt++;
1.32 kristaps 907: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 908: return(0);
1.39 kristaps 909:
910: /*
911: * `Fl' macros have their scope re-opened with each new
912: * word so that the `-' can be added to each one without
913: * having to parse out spaces.
914: */
1.70 kristaps 915: if (scope && MDOC_Fl == tok) {
1.39 kristaps 916: if ( ! rew_elem(m, tok))
917: return(0);
1.70 kristaps 918: scope = 0;
1.39 kristaps 919: }
1.1 kristaps 920: }
921:
1.70 kristaps 922: if (scope && ! rew_elem(m, tok))
1.1 kristaps 923: return(0);
1.4 kristaps 924:
925: /*
926: * If no elements have been collected and we're allowed to have
927: * empties (nc), open a scope and close it out. Otherwise,
928: * raise a warning.
929: */
1.45 kristaps 930:
1.4 kristaps 931: if (nc && 0 == cnt) {
1.32 kristaps 932: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 933: return(0);
1.32 kristaps 934: if ( ! rew_last(m, m->last))
1.12 kristaps 935: return(0);
1.7 kristaps 936: } else if ( ! nc && 0 == cnt) {
937: mdoc_argv_free(arg);
1.103 ! kristaps 938: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
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 &&
1.102 kristaps 1062: DELIM_OPEN == mandoc_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)) {
1.47 kristaps 1149: n->pending = head;
1150: return(1);
1151: }
1152: }
1153:
1.45 kristaps 1154: /* Close out scopes to remain in a consistent state. */
1155:
1.32 kristaps 1156: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1157: return(0);
1.32 kristaps 1158: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1159: return(0);
1160:
1.77 kristaps 1161: out:
1162: if ( ! (MDOC_FREECOL & m->flags))
1163: return(1);
1164:
1165: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1166: return(0);
1167: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1168: return(0);
1169:
1170: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1171: return(1);
1172: }
1173:
1174:
1175: static int
1176: blk_part_imp(MACRO_PROT_ARGS)
1177: {
1.63 kristaps 1178: int la, nl;
1.53 kristaps 1179: enum mdoct ntok;
1.55 kristaps 1180: enum margserr ac;
1.1 kristaps 1181: char *p;
1.43 kristaps 1182: struct mdoc_node *blk; /* saved block context */
1183: struct mdoc_node *body; /* saved body context */
1184: struct mdoc_node *n;
1.1 kristaps 1185:
1.63 kristaps 1186: nl = MDOC_NEWLINE & m->flags;
1187:
1.43 kristaps 1188: /*
1189: * A macro that spans to the end of the line. This is generally
1190: * (but not necessarily) called as the first macro. The block
1191: * has a head as the immediate child, which is always empty,
1192: * followed by zero or more opening punctuation nodes, then the
1193: * body (which may be empty, depending on the macro), then zero
1194: * or more closing punctuation nodes.
1195: */
1.32 kristaps 1196:
1197: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1198: return(0);
1.43 kristaps 1199:
1.32 kristaps 1200: blk = m->last;
1.43 kristaps 1201:
1.32 kristaps 1202: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1203: return(0);
1.32 kristaps 1204: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1205: return(0);
1206:
1.43 kristaps 1207: /*
1208: * Open the body scope "on-demand", that is, after we've
1209: * processed all our the leading delimiters (open parenthesis,
1210: * etc.).
1211: */
1.1 kristaps 1212:
1.43 kristaps 1213: for (body = NULL; ; ) {
1.32 kristaps 1214: la = *pos;
1.53 kristaps 1215: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.43 kristaps 1216:
1.53 kristaps 1217: if (ARGS_ERROR == ac)
1.1 kristaps 1218: return(0);
1.53 kristaps 1219: if (ARGS_EOLN == ac)
1.43 kristaps 1220: break;
1.53 kristaps 1221: if (ARGS_PUNCT == ac)
1.1 kristaps 1222: break;
1223:
1.53 kristaps 1224: if (NULL == body && ARGS_QWORD != ac &&
1.102 kristaps 1225: DELIM_OPEN == mandoc_isdelim(p)) {
1.32 kristaps 1226: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1227: return(0);
1228: continue;
1229: }
1230:
1.43 kristaps 1231: if (NULL == body) {
1232: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1233: return(0);
1234: body = m->last;
1235: }
1236:
1.54 kristaps 1237: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1238:
1239: if (MDOC_MAX == ntok) {
1.53 kristaps 1240: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1241: return(0);
1.53 kristaps 1242: continue;
1243: }
1.43 kristaps 1244:
1.82 kristaps 1245: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1246: return(0);
1.53 kristaps 1247: break;
1.1 kristaps 1248: }
1249:
1.43 kristaps 1250: /* Clean-ups to leave in a consistent state. */
1251:
1.44 kristaps 1252: if (NULL == body) {
1253: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1254: return(0);
1255: body = m->last;
1.64 kristaps 1256: }
1257:
1258: for (n = body->child; n && n->next; n = n->next)
1259: /* Do nothing. */ ;
1260:
1261: /*
1262: * End of sentence spacing: if the last node is a text node and
1263: * has a trailing period, then mark it as being end-of-sentence.
1264: */
1265:
1266: if (n && MDOC_TEXT == n->type && n->string)
1.93 schwarze 1267: if (mandoc_eos(n->string, strlen(n->string), 1))
1.64 kristaps 1268: n->flags |= MDOC_EOS;
1269:
1270: /* Up-propogate the end-of-space flag. */
1271:
1272: if (n && (MDOC_EOS & n->flags)) {
1273: body->flags |= MDOC_EOS;
1274: body->parent->flags |= MDOC_EOS;
1.44 kristaps 1275: }
1.43 kristaps 1276:
1.83 schwarze 1277: /*
1278: * If there is an open sub-block requiring explicit close-out,
1279: * postpone closing out the current block
1280: * until the rew_sub() call closing out the sub-block.
1281: */
1282: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1283: if (MDOC_BLOCK == n->type &&
1284: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1285: ! (MDOC_VALID & n->flags)) {
1.98 kristaps 1286: make_pending(n, tok, m, line, ppos);
1.83 schwarze 1287: if ( ! mdoc_endbody_alloc(m, line, ppos,
1288: tok, body, ENDBODY_NOSPACE))
1289: return(0);
1290: return(1);
1291: }
1292: }
1293:
1.32 kristaps 1294: /*
1295: * If we can't rewind to our body, then our scope has already
1296: * been closed by another macro (like `Oc' closing `Op'). This
1297: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1298: * crufty use of `Op' breakage.
1.1 kristaps 1299: */
1.103 ! kristaps 1300: if (n != body)
! 1301: mdoc_vmsg(m, MANDOCERR_SCOPENEST, line, ppos,
! 1302: "%s broken", mdoc_macronames[tok]);
1.43 kristaps 1303:
1.83 schwarze 1304: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.32 kristaps 1305: return(0);
1.1 kristaps 1306:
1.32 kristaps 1307: /* Standard appending of delimiters. */
1.1 kristaps 1308:
1.63 kristaps 1309: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1310: return(0);
1311:
1.32 kristaps 1312: /* Rewind scope, if applicable. */
1.1 kristaps 1313:
1.83 schwarze 1314: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1315: return(0);
1316:
1317: return(1);
1318: }
1319:
1320:
1321: static int
1322: blk_part_exp(MACRO_PROT_ARGS)
1323: {
1.60 kristaps 1324: int la, nl;
1.55 kristaps 1325: enum margserr ac;
1.43 kristaps 1326: struct mdoc_node *head; /* keep track of head */
1327: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1328: char *p;
1.53 kristaps 1329: enum mdoct ntok;
1.1 kristaps 1330:
1.60 kristaps 1331: nl = MDOC_NEWLINE & m->flags;
1332:
1.43 kristaps 1333: /*
1334: * The opening of an explicit macro having zero or more leading
1335: * punctuation nodes; a head with optional single element (the
1336: * case of `Eo'); and a body that may be empty.
1337: */
1.32 kristaps 1338:
1339: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1340: return(0);
1.32 kristaps 1341:
1.43 kristaps 1342: for (head = body = NULL; ; ) {
1.32 kristaps 1343: la = *pos;
1.53 kristaps 1344: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1345:
1.53 kristaps 1346: if (ARGS_ERROR == ac)
1.1 kristaps 1347: return(0);
1.53 kristaps 1348: if (ARGS_PUNCT == ac)
1.1 kristaps 1349: break;
1.53 kristaps 1350: if (ARGS_EOLN == ac)
1.1 kristaps 1351: break;
1.43 kristaps 1352:
1353: /* Flush out leading punctuation. */
1354:
1.53 kristaps 1355: if (NULL == head && ARGS_QWORD != ac &&
1.102 kristaps 1356: DELIM_OPEN == mandoc_isdelim(p)) {
1.43 kristaps 1357: assert(NULL == body);
1358: if ( ! mdoc_word_alloc(m, line, la, p))
1359: return(0);
1360: continue;
1361: }
1362:
1363: if (NULL == head) {
1364: assert(NULL == body);
1365: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1366: return(0);
1.43 kristaps 1367: head = m->last;
1.1 kristaps 1368: }
1369:
1.43 kristaps 1370: /*
1371: * `Eo' gobbles any data into the head, but most other
1372: * macros just immediately close out and begin the body.
1373: */
1374:
1375: if (NULL == body) {
1376: assert(head);
1377: /* No check whether it's a macro! */
1378: if (MDOC_Eo == tok)
1379: if ( ! mdoc_word_alloc(m, line, la, p))
1380: return(0);
1381:
1.32 kristaps 1382: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1383: return(0);
1.32 kristaps 1384: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1385: return(0);
1.43 kristaps 1386: body = m->last;
1387:
1388: if (MDOC_Eo == tok)
1389: continue;
1.1 kristaps 1390: }
1.43 kristaps 1391:
1392: assert(NULL != head && NULL != body);
1393:
1.54 kristaps 1394: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1395:
1396: if (MDOC_MAX == ntok) {
1.53 kristaps 1397: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1398: return(0);
1.53 kristaps 1399: continue;
1.43 kristaps 1400: }
1401:
1.82 kristaps 1402: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1403: return(0);
1.53 kristaps 1404: break;
1.1 kristaps 1405: }
1406:
1.43 kristaps 1407: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1408:
1.43 kristaps 1409: if (NULL == head) {
1410: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1411: return(0);
1412: head = m->last;
1413: }
1414:
1415: if (NULL == body) {
1.32 kristaps 1416: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1417: return(0);
1.32 kristaps 1418: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1419: return(0);
1.43 kristaps 1420: body = m->last;
1.1 kristaps 1421: }
1422:
1.32 kristaps 1423: /* Standard appending of delimiters. */
1424:
1.60 kristaps 1425: if ( ! nl)
1.1 kristaps 1426: return(1);
1.32 kristaps 1427: return(append_delims(m, line, pos, buf));
1.1 kristaps 1428: }
1429:
1430:
1.61 kristaps 1431: /* ARGSUSED */
1.1 kristaps 1432: static int
1433: in_line_argn(MACRO_PROT_ARGS)
1434: {
1.60 kristaps 1435: int la, flushed, j, maxargs, nl;
1.55 kristaps 1436: enum margserr ac;
1.56 kristaps 1437: enum margverr av;
1.53 kristaps 1438: struct mdoc_arg *arg;
1439: char *p;
1440: enum mdoct ntok;
1.1 kristaps 1441:
1.60 kristaps 1442: nl = MDOC_NEWLINE & m->flags;
1443:
1.46 kristaps 1444: /*
1445: * A line macro that has a fixed number of arguments (maxargs).
1446: * Only open the scope once the first non-leading-punctuation is
1447: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1448: * keep it open until the maximum number of arguments are
1449: * exhausted.
1450: */
1.1 kristaps 1451:
1452: switch (tok) {
1453: case (MDOC_Ap):
1454: /* FALLTHROUGH */
1455: case (MDOC_No):
1456: /* FALLTHROUGH */
1457: case (MDOC_Ns):
1458: /* FALLTHROUGH */
1459: case (MDOC_Ux):
1460: maxargs = 0;
1461: break;
1.101 kristaps 1462: case (MDOC_Bx):
1463: /* FALLTHROUGH */
1.42 kristaps 1464: case (MDOC_Xr):
1465: maxargs = 2;
1466: break;
1.1 kristaps 1467: default:
1468: maxargs = 1;
1469: break;
1470: }
1471:
1.46 kristaps 1472: for (arg = NULL; ; ) {
1.32 kristaps 1473: la = *pos;
1.56 kristaps 1474: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1475:
1.56 kristaps 1476: if (ARGV_WORD == av) {
1.32 kristaps 1477: *pos = la;
1.1 kristaps 1478: break;
1479: }
1480:
1.56 kristaps 1481: if (ARGV_EOLN == av)
1.1 kristaps 1482: break;
1.56 kristaps 1483: if (ARGV_ARG == av)
1.1 kristaps 1484: continue;
1485:
1486: mdoc_argv_free(arg);
1487: return(0);
1488: }
1489:
1.46 kristaps 1490: for (flushed = j = 0; ; ) {
1.32 kristaps 1491: la = *pos;
1.53 kristaps 1492: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1493:
1.53 kristaps 1494: if (ARGS_ERROR == ac)
1.1 kristaps 1495: return(0);
1.53 kristaps 1496: if (ARGS_PUNCT == ac)
1.1 kristaps 1497: break;
1.53 kristaps 1498: if (ARGS_EOLN == ac)
1.1 kristaps 1499: break;
1500:
1.46 kristaps 1501: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1502: ARGS_QWORD != ac &&
1.102 kristaps 1503: 0 == j && DELIM_OPEN == mandoc_isdelim(p)) {
1.46 kristaps 1504: if ( ! mdoc_word_alloc(m, line, la, p))
1505: return(0);
1506: continue;
1507: } else if (0 == j)
1508: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1509: return(0);
1510:
1511: if (j == maxargs && ! flushed) {
1512: if ( ! rew_elem(m, tok))
1513: return(0);
1514: flushed = 1;
1515: }
1516:
1.54 kristaps 1517: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1518:
1519: if (MDOC_MAX != ntok) {
1.32 kristaps 1520: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1521: return(0);
1522: flushed = 1;
1.82 kristaps 1523: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1524: return(0);
1.46 kristaps 1525: j++;
1.1 kristaps 1526: break;
1527: }
1528:
1529: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1530: ARGS_QWORD != ac &&
1.67 schwarze 1531: ! flushed &&
1.102 kristaps 1532: DELIM_NONE != mandoc_isdelim(p)) {
1.32 kristaps 1533: if ( ! rew_elem(m, tok))
1.1 kristaps 1534: return(0);
1535: flushed = 1;
1536: }
1.42 kristaps 1537:
1538: /*
1539: * XXX: this is a hack to work around groff's ugliness
1540: * as regards `Xr' and extraneous arguments. It should
1541: * ideally be deprecated behaviour, but because this is
1542: * code is no here, it's unlikely to be removed.
1543: */
1.43 kristaps 1544:
1.46 kristaps 1545: #ifdef __OpenBSD__
1.42 kristaps 1546: if (MDOC_Xr == tok && j == maxargs) {
1.46 kristaps 1547: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.42 kristaps 1548: return(0);
1549: if ( ! rew_elem(m, MDOC_Ns))
1550: return(0);
1551: }
1.46 kristaps 1552: #endif
1.42 kristaps 1553:
1.32 kristaps 1554: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1555: return(0);
1.46 kristaps 1556: j++;
1.1 kristaps 1557: }
1558:
1.46 kristaps 1559: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1560: return(0);
1561:
1562: /* Close out in a consistent state. */
1.32 kristaps 1563:
1564: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1565: return(0);
1.60 kristaps 1566: if ( ! nl)
1.1 kristaps 1567: return(1);
1.32 kristaps 1568: return(append_delims(m, line, pos, buf));
1.1 kristaps 1569: }
1570:
1571:
1572: static int
1573: in_line_eoln(MACRO_PROT_ARGS)
1574: {
1.56 kristaps 1575: int la;
1.55 kristaps 1576: enum margserr ac;
1.56 kristaps 1577: enum margverr av;
1.53 kristaps 1578: struct mdoc_arg *arg;
1579: char *p;
1580: enum mdoct ntok;
1.1 kristaps 1581:
1582: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1583:
1.90 schwarze 1584: if (tok == MDOC_Pp)
1585: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1586:
1.32 kristaps 1587: /* Parse macro arguments. */
1.1 kristaps 1588:
1.32 kristaps 1589: for (arg = NULL; ; ) {
1.1 kristaps 1590: la = *pos;
1.56 kristaps 1591: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1592:
1.56 kristaps 1593: if (ARGV_WORD == av) {
1.1 kristaps 1594: *pos = la;
1595: break;
1596: }
1.56 kristaps 1597: if (ARGV_EOLN == av)
1.1 kristaps 1598: break;
1.56 kristaps 1599: if (ARGV_ARG == av)
1.1 kristaps 1600: continue;
1601:
1602: mdoc_argv_free(arg);
1603: return(0);
1604: }
1605:
1.32 kristaps 1606: /* Open element scope. */
1607:
1608: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1609: return(0);
1610:
1.32 kristaps 1611: /* Parse argument terms. */
1.1 kristaps 1612:
1613: for (;;) {
1614: la = *pos;
1.53 kristaps 1615: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1616:
1.53 kristaps 1617: if (ARGS_ERROR == ac)
1.1 kristaps 1618: return(0);
1.53 kristaps 1619: if (ARGS_EOLN == ac)
1.1 kristaps 1620: break;
1621:
1.53 kristaps 1622: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1623:
1.53 kristaps 1624: if (MDOC_MAX == ntok) {
1625: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1626: return(0);
1.53 kristaps 1627: continue;
1628: }
1.1 kristaps 1629:
1.53 kristaps 1630: if ( ! rew_elem(m, tok))
1.1 kristaps 1631: return(0);
1.82 kristaps 1632: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1633: }
1634:
1.32 kristaps 1635: /* Close out (no delimiters). */
1636:
1637: return(rew_elem(m, tok));
1.1 kristaps 1638: }
1639:
1640:
1641: /* ARGSUSED */
1642: static int
1.41 kristaps 1643: ctx_synopsis(MACRO_PROT_ARGS)
1644: {
1.60 kristaps 1645: int nl;
1646:
1647: nl = MDOC_NEWLINE & m->flags;
1.41 kristaps 1648:
1649: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.90 schwarze 1650: if ( ! (MDOC_SYNOPSIS & m->flags))
1.82 kristaps 1651: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1652:
1653: /* If we're a nested call, same place. */
1.60 kristaps 1654: if ( ! nl)
1.82 kristaps 1655: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1656:
1657: /*
1658: * XXX: this will open a block scope; however, if later we end
1659: * up formatting the block scope, then child nodes will inherit
1660: * the formatting. Be careful.
1661: */
1.88 schwarze 1662: if (MDOC_Nm == tok)
1663: return(blk_full(m, tok, line, ppos, pos, buf));
1664: assert(MDOC_Vt == tok);
1.82 kristaps 1665: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.41 kristaps 1666: }
1667:
1668:
1669: /* ARGSUSED */
1670: static int
1.1 kristaps 1671: obsolete(MACRO_PROT_ARGS)
1672: {
1673:
1.103 ! kristaps 1674: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS);
! 1675: return(1);
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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