Annotation of mandoc/mdoc_macro.c, Revision 1.101
1.101 ! kristaps 1: /* $Id: mdoc_macro.c,v 1.100 2011/01/12 17:00:07 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:
1.67 schwarze 602: assert(DELIM_NONE != mdoc_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])
1.68 kristaps 713: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 714: return(0);
1.22 kristaps 715:
1.32 kristaps 716: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 kristaps 717: return(0);
1.32 kristaps 718: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 719: }
720:
1.32 kristaps 721: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 722: return(0);
723:
1.83 schwarze 724: if (NULL == later && maxargs > 0)
1.32 kristaps 725: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 726: return(0);
727:
1.27 kristaps 728: for (flushed = j = 0; ; j++) {
1.1 kristaps 729: lastarg = *pos;
730:
731: if (j == maxargs && ! flushed) {
1.32 kristaps 732: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 733: return(0);
734: flushed = 1;
735: }
736:
1.53 kristaps 737: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 738:
1.53 kristaps 739: if (ARGS_ERROR == ac)
1.1 kristaps 740: return(0);
1.53 kristaps 741: if (ARGS_PUNCT == ac)
1.1 kristaps 742: break;
1.53 kristaps 743: if (ARGS_EOLN == ac)
1.1 kristaps 744: break;
745:
1.54 kristaps 746: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
747:
748: if (MDOC_MAX == ntok) {
749: if ( ! mdoc_word_alloc(m, line, lastarg, p))
1.1 kristaps 750: return(0);
1.54 kristaps 751: continue;
752: }
1.1 kristaps 753:
1.54 kristaps 754: if ( ! flushed) {
755: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
756: return(0);
757: flushed = 1;
758: }
1.82 kristaps 759: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 760: return(0);
1.54 kristaps 761: break;
1.1 kristaps 762: }
763:
1.32 kristaps 764: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 765: return(0);
766:
1.60 kristaps 767: if ( ! nl)
1.1 kristaps 768: return(1);
1.32 kristaps 769: return(append_delims(m, line, pos, buf));
1.1 kristaps 770: }
771:
772:
773: static int
774: in_line(MACRO_PROT_ARGS)
775: {
1.70 kristaps 776: int la, scope, cnt, nc, nl;
1.56 kristaps 777: enum margverr av;
1.53 kristaps 778: enum mdoct ntok;
1.55 kristaps 779: enum margserr ac;
1.67 schwarze 780: enum mdelim d;
1.53 kristaps 781: struct mdoc_arg *arg;
782: char *p;
1.1 kristaps 783:
1.60 kristaps 784: nl = MDOC_NEWLINE & m->flags;
785:
1.4 kristaps 786: /*
787: * Whether we allow ignored elements (those without content,
788: * usually because of reserved words) to squeak by.
789: */
1.45 kristaps 790:
1.4 kristaps 791: switch (tok) {
1.26 kristaps 792: case (MDOC_An):
793: /* FALLTHROUGH */
794: case (MDOC_Ar):
1.4 kristaps 795: /* FALLTHROUGH */
796: case (MDOC_Fl):
797: /* FALLTHROUGH */
1.96 kristaps 798: case (MDOC_Mt):
1.12 kristaps 799: /* FALLTHROUGH */
1.26 kristaps 800: case (MDOC_Nm):
801: /* FALLTHROUGH */
1.25 kristaps 802: case (MDOC_Pa):
1.4 kristaps 803: nc = 1;
804: break;
805: default:
806: nc = 0;
807: break;
808: }
809:
1.27 kristaps 810: for (arg = NULL;; ) {
1.1 kristaps 811: la = *pos;
1.56 kristaps 812: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 813:
1.56 kristaps 814: if (ARGV_WORD == av) {
1.1 kristaps 815: *pos = la;
816: break;
817: }
1.56 kristaps 818: if (ARGV_EOLN == av)
1.1 kristaps 819: break;
1.56 kristaps 820: if (ARGV_ARG == av)
1.1 kristaps 821: continue;
822:
823: mdoc_argv_free(arg);
824: return(0);
825: }
826:
1.70 kristaps 827: for (cnt = scope = 0;; ) {
1.1 kristaps 828: la = *pos;
1.53 kristaps 829: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 830:
1.53 kristaps 831: if (ARGS_ERROR == ac)
1.1 kristaps 832: return(0);
1.53 kristaps 833: if (ARGS_EOLN == ac)
1.1 kristaps 834: break;
1.53 kristaps 835: if (ARGS_PUNCT == ac)
1.1 kristaps 836: break;
837:
1.53 kristaps 838: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 839:
1.4 kristaps 840: /*
841: * In this case, we've located a submacro and must
842: * execute it. Close out scope, if open. If no
843: * elements have been generated, either create one (nc)
844: * or raise a warning.
845: */
1.1 kristaps 846:
1.53 kristaps 847: if (MDOC_MAX != ntok) {
1.70 kristaps 848: if (scope && ! rew_elem(m, tok))
1.1 kristaps 849: return(0);
1.4 kristaps 850: if (nc && 0 == cnt) {
1.32 kristaps 851: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 852: return(0);
1.32 kristaps 853: if ( ! rew_last(m, m->last))
1.12 kristaps 854: return(0);
1.7 kristaps 855: } else if ( ! nc && 0 == cnt) {
856: mdoc_argv_free(arg);
1.68 kristaps 857: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 858: return(0);
1.7 kristaps 859: }
1.82 kristaps 860: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 861: return(0);
1.60 kristaps 862: if ( ! nl)
1.1 kristaps 863: return(1);
1.32 kristaps 864: return(append_delims(m, line, pos, buf));
1.29 kristaps 865: }
1.1 kristaps 866:
1.4 kristaps 867: /*
868: * Non-quote-enclosed punctuation. Set up our scope, if
869: * a word; rewind the scope, if a delimiter; then append
870: * the word.
871: */
1.1 kristaps 872:
1.67 schwarze 873: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 874:
1.70 kristaps 875: if (DELIM_NONE != d) {
876: /*
877: * If we encounter closing punctuation, no word
878: * has been omitted, no scope is open, and we're
879: * allowed to have an empty element, then start
880: * a new scope. `Ar', `Fl', and `Li', only do
881: * this once per invocation. There may be more
882: * of these (all of them?).
883: */
884: if (0 == cnt && (nc || MDOC_Li == tok) &&
885: DELIM_CLOSE == d && ! scope) {
886: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
887: return(0);
888: if (MDOC_Ar == tok || MDOC_Li == tok ||
889: MDOC_Fl == tok)
890: cnt++;
891: scope = 1;
892: }
893: /*
894: * Close out our scope, if one is open, before
895: * any punctuation.
896: */
897: if (scope && ! rew_elem(m, tok))
1.1 kristaps 898: return(0);
1.70 kristaps 899: scope = 0;
900: } else if ( ! scope) {
1.32 kristaps 901: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 902: return(0);
1.70 kristaps 903: scope = 1;
1.1 kristaps 904: }
905:
1.67 schwarze 906: if (DELIM_NONE == d)
1.3 kristaps 907: cnt++;
1.32 kristaps 908: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 909: return(0);
1.39 kristaps 910:
911: /*
912: * `Fl' macros have their scope re-opened with each new
913: * word so that the `-' can be added to each one without
914: * having to parse out spaces.
915: */
1.70 kristaps 916: if (scope && MDOC_Fl == tok) {
1.39 kristaps 917: if ( ! rew_elem(m, tok))
918: return(0);
1.70 kristaps 919: scope = 0;
1.39 kristaps 920: }
1.1 kristaps 921: }
922:
1.70 kristaps 923: if (scope && ! rew_elem(m, tok))
1.1 kristaps 924: return(0);
1.4 kristaps 925:
926: /*
927: * If no elements have been collected and we're allowed to have
928: * empties (nc), open a scope and close it out. Otherwise,
929: * raise a warning.
930: */
1.45 kristaps 931:
1.4 kristaps 932: if (nc && 0 == cnt) {
1.32 kristaps 933: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 934: return(0);
1.32 kristaps 935: if ( ! rew_last(m, m->last))
1.12 kristaps 936: return(0);
1.7 kristaps 937: } else if ( ! nc && 0 == cnt) {
938: mdoc_argv_free(arg);
1.68 kristaps 939: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 940: return(0);
1.7 kristaps 941: }
1.4 kristaps 942:
1.60 kristaps 943: if ( ! nl)
1.1 kristaps 944: return(1);
1.32 kristaps 945: return(append_delims(m, line, pos, buf));
1.1 kristaps 946: }
947:
948:
949: static int
950: blk_full(MACRO_PROT_ARGS)
951: {
1.63 kristaps 952: int la, nl;
1.1 kristaps 953: struct mdoc_arg *arg;
1.45 kristaps 954: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 955: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 956: struct mdoc_node *n;
1.74 kristaps 957: enum mdoc_type mtt;
1.53 kristaps 958: enum mdoct ntok;
1.59 kristaps 959: enum margserr ac, lac;
1.56 kristaps 960: enum margverr av;
1.1 kristaps 961: char *p;
962:
1.63 kristaps 963: nl = MDOC_NEWLINE & m->flags;
964:
1.45 kristaps 965: /* Close out prior implicit scope. */
1.19 kristaps 966:
1.1 kristaps 967: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.32 kristaps 968: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 969: return(0);
1.32 kristaps 970: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 971: return(0);
972: }
973:
1.45 kristaps 974: /*
975: * This routine accomodates implicitly- and explicitly-scoped
976: * macro openings. Implicit ones first close out prior scope
977: * (seen above). Delay opening the head until necessary to
978: * allow leading punctuation to print. Special consideration
979: * for `It -column', which has phrase-part syntax instead of
980: * regular child nodes.
981: */
982:
1.1 kristaps 983: for (arg = NULL;; ) {
1.45 kristaps 984: la = *pos;
1.56 kristaps 985: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 986:
1.56 kristaps 987: if (ARGV_WORD == av) {
1.45 kristaps 988: *pos = la;
1.1 kristaps 989: break;
990: }
991:
1.56 kristaps 992: if (ARGV_EOLN == av)
1.1 kristaps 993: break;
1.56 kristaps 994: if (ARGV_ARG == av)
1.1 kristaps 995: continue;
996:
997: mdoc_argv_free(arg);
998: return(0);
999: }
1000:
1.32 kristaps 1001: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1002: return(0);
1003:
1.49 kristaps 1004: head = body = NULL;
1.1 kristaps 1005:
1.45 kristaps 1006: /*
1007: * The `Nd' macro has all arguments in its body: it's a hybrid
1008: * of block partial-explicit and full-implicit. Stupid.
1009: */
1.19 kristaps 1010:
1.45 kristaps 1011: if (MDOC_Nd == tok) {
1012: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1013: return(0);
1014: head = m->last;
1.32 kristaps 1015: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.19 kristaps 1016: return(0);
1.32 kristaps 1017: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.19 kristaps 1018: return(0);
1.49 kristaps 1019: body = m->last;
1.19 kristaps 1020: }
1021:
1.59 kristaps 1022: ac = ARGS_ERROR;
1023:
1.62 kristaps 1024: for ( ; ; ) {
1.45 kristaps 1025: la = *pos;
1.75 kristaps 1026: /* Initialise last-phrase-type with ARGS_PEND. */
1027: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.53 kristaps 1028: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.89 schwarze 1029:
1030: if (ARGS_PUNCT == ac)
1031: break;
1.1 kristaps 1032:
1.53 kristaps 1033: if (ARGS_ERROR == ac)
1.1 kristaps 1034: return(0);
1.75 kristaps 1035:
1036: if (ARGS_EOLN == ac) {
1037: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1038: break;
1039: /*
1040: * This is necessary: if the last token on a
1041: * line is a `Ta' or tab, then we'll get
1042: * ARGS_EOLN, so we must be smart enough to
1043: * reopen our scope if the last parse was a
1044: * phrase or partial phrase.
1045: */
1046: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1047: return(0);
1048: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1049: return(0);
1050: body = m->last;
1.1 kristaps 1051: break;
1.75 kristaps 1052: }
1.45 kristaps 1053:
1.73 kristaps 1054: /*
1055: * Emit leading punctuation (i.e., punctuation before
1056: * the MDOC_HEAD) for non-phrase types.
1057: */
1.45 kristaps 1058:
1.59 kristaps 1059: if (NULL == head &&
1.71 kristaps 1060: ARGS_PEND != ac &&
1.59 kristaps 1061: ARGS_PHRASE != ac &&
1.57 kristaps 1062: ARGS_PPHRASE != ac &&
1.53 kristaps 1063: ARGS_QWORD != ac &&
1.67 schwarze 1064: DELIM_OPEN == mdoc_isdelim(p)) {
1.45 kristaps 1065: if ( ! mdoc_word_alloc(m, line, la, p))
1066: return(0);
1067: continue;
1068: }
1069:
1.74 kristaps 1070: /* Open a head if one hasn't been opened. */
1.45 kristaps 1071:
1.74 kristaps 1072: if (NULL == head) {
1.45 kristaps 1073: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1074: return(0);
1075: head = m->last;
1076: }
1077:
1.72 kristaps 1078: if (ARGS_PHRASE == ac ||
1079: ARGS_PEND == ac ||
1080: ARGS_PPHRASE == ac) {
1.73 kristaps 1081: /*
1.74 kristaps 1082: * If we haven't opened a body yet, rewind the
1083: * head; if we have, rewind that instead.
1084: */
1085:
1086: mtt = body ? MDOC_BODY : MDOC_HEAD;
1087: if ( ! rew_sub(mtt, m, tok, line, ppos))
1088: return(0);
1089:
1090: /* Then allocate our body context. */
1091:
1092: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1093: return(0);
1094: body = m->last;
1095:
1096: /*
1.73 kristaps 1097: * Process phrases: set whether we're in a
1098: * partial-phrase (this effects line handling)
1099: * then call down into the phrase parser.
1100: */
1.74 kristaps 1101:
1.65 kristaps 1102: if (ARGS_PPHRASE == ac)
1103: m->flags |= MDOC_PPHRASE;
1.71 kristaps 1104: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1105: m->flags |= MDOC_PPHRASE;
1106:
1.82 kristaps 1107: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1108: return(0);
1.71 kristaps 1109:
1.65 kristaps 1110: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1111: continue;
1112: }
1113:
1.54 kristaps 1114: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1115:
1116: if (MDOC_MAX == ntok) {
1.53 kristaps 1117: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1118: return(0);
1.53 kristaps 1119: continue;
1.45 kristaps 1120: }
1.53 kristaps 1121:
1.82 kristaps 1122: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.45 kristaps 1123: return(0);
1.53 kristaps 1124: break;
1.45 kristaps 1125: }
1.1 kristaps 1126:
1.45 kristaps 1127: if (NULL == head) {
1128: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1129: return(0);
1.45 kristaps 1130: head = m->last;
1.1 kristaps 1131: }
1132:
1.63 kristaps 1133: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1134: return(0);
1.19 kristaps 1135:
1.49 kristaps 1136: /* If we've already opened our body, exit now. */
1.45 kristaps 1137:
1.49 kristaps 1138: if (NULL != body)
1.77 kristaps 1139: goto out;
1.19 kristaps 1140:
1.47 kristaps 1141: /*
1.49 kristaps 1142: * If there is an open (i.e., unvalidated) sub-block requiring
1143: * explicit close-out, postpone switching the current block from
1144: * head to body until the rew_sub() call closing out that
1145: * sub-block.
1.47 kristaps 1146: */
1147: for (n = m->last; n && n != head; n = n->parent) {
1.49 kristaps 1148: if (MDOC_BLOCK == n->type &&
1149: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1150: ! (MDOC_VALID & n->flags)) {
1.47 kristaps 1151: n->pending = head;
1152: return(1);
1153: }
1154: }
1155:
1.45 kristaps 1156: /* Close out scopes to remain in a consistent state. */
1157:
1.32 kristaps 1158: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1159: return(0);
1.32 kristaps 1160: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1161: return(0);
1162:
1.77 kristaps 1163: out:
1164: if ( ! (MDOC_FREECOL & m->flags))
1165: return(1);
1166:
1167: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1168: return(0);
1169: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1170: return(0);
1171:
1172: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1173: return(1);
1174: }
1175:
1176:
1177: static int
1178: blk_part_imp(MACRO_PROT_ARGS)
1179: {
1.63 kristaps 1180: int la, nl;
1.53 kristaps 1181: enum mdoct ntok;
1.55 kristaps 1182: enum margserr ac;
1.1 kristaps 1183: char *p;
1.43 kristaps 1184: struct mdoc_node *blk; /* saved block context */
1185: struct mdoc_node *body; /* saved body context */
1186: struct mdoc_node *n;
1.1 kristaps 1187:
1.63 kristaps 1188: nl = MDOC_NEWLINE & m->flags;
1189:
1.43 kristaps 1190: /*
1191: * A macro that spans to the end of the line. This is generally
1192: * (but not necessarily) called as the first macro. The block
1193: * has a head as the immediate child, which is always empty,
1194: * followed by zero or more opening punctuation nodes, then the
1195: * body (which may be empty, depending on the macro), then zero
1196: * or more closing punctuation nodes.
1197: */
1.32 kristaps 1198:
1199: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1200: return(0);
1.43 kristaps 1201:
1.32 kristaps 1202: blk = m->last;
1.43 kristaps 1203:
1.32 kristaps 1204: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1205: return(0);
1.32 kristaps 1206: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1207: return(0);
1208:
1.43 kristaps 1209: /*
1210: * Open the body scope "on-demand", that is, after we've
1211: * processed all our the leading delimiters (open parenthesis,
1212: * etc.).
1213: */
1.1 kristaps 1214:
1.43 kristaps 1215: for (body = NULL; ; ) {
1.32 kristaps 1216: la = *pos;
1.53 kristaps 1217: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.43 kristaps 1218:
1.53 kristaps 1219: if (ARGS_ERROR == ac)
1.1 kristaps 1220: return(0);
1.53 kristaps 1221: if (ARGS_EOLN == ac)
1.43 kristaps 1222: break;
1.53 kristaps 1223: if (ARGS_PUNCT == ac)
1.1 kristaps 1224: break;
1225:
1.53 kristaps 1226: if (NULL == body && ARGS_QWORD != ac &&
1.67 schwarze 1227: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 kristaps 1228: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1229: return(0);
1230: continue;
1231: }
1232:
1.43 kristaps 1233: if (NULL == body) {
1234: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1235: return(0);
1236: body = m->last;
1237: }
1238:
1.54 kristaps 1239: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1240:
1241: if (MDOC_MAX == ntok) {
1.53 kristaps 1242: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1243: return(0);
1.53 kristaps 1244: continue;
1245: }
1.43 kristaps 1246:
1.82 kristaps 1247: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1248: return(0);
1.53 kristaps 1249: break;
1.1 kristaps 1250: }
1251:
1.43 kristaps 1252: /* Clean-ups to leave in a consistent state. */
1253:
1.44 kristaps 1254: if (NULL == body) {
1255: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1256: return(0);
1257: body = m->last;
1.64 kristaps 1258: }
1259:
1260: for (n = body->child; n && n->next; n = n->next)
1261: /* Do nothing. */ ;
1262:
1263: /*
1264: * End of sentence spacing: if the last node is a text node and
1265: * has a trailing period, then mark it as being end-of-sentence.
1266: */
1267:
1268: if (n && MDOC_TEXT == n->type && n->string)
1.93 schwarze 1269: if (mandoc_eos(n->string, strlen(n->string), 1))
1.64 kristaps 1270: n->flags |= MDOC_EOS;
1271:
1272: /* Up-propogate the end-of-space flag. */
1273:
1274: if (n && (MDOC_EOS & n->flags)) {
1275: body->flags |= MDOC_EOS;
1276: body->parent->flags |= MDOC_EOS;
1.44 kristaps 1277: }
1.43 kristaps 1278:
1.83 schwarze 1279: /*
1280: * If there is an open sub-block requiring explicit close-out,
1281: * postpone closing out the current block
1282: * until the rew_sub() call closing out the sub-block.
1283: */
1284: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1285: if (MDOC_BLOCK == n->type &&
1286: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1287: ! (MDOC_VALID & n->flags)) {
1.98 kristaps 1288: make_pending(n, tok, m, line, ppos);
1.83 schwarze 1289: if ( ! mdoc_endbody_alloc(m, line, ppos,
1290: tok, body, ENDBODY_NOSPACE))
1291: return(0);
1292: return(1);
1293: }
1294: }
1295:
1.32 kristaps 1296: /*
1297: * If we can't rewind to our body, then our scope has already
1298: * been closed by another macro (like `Oc' closing `Op'). This
1299: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1300: * crufty use of `Op' breakage.
1.1 kristaps 1301: */
1.88 schwarze 1302: if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPENEST,
1303: line, ppos, "%s broken", mdoc_macronames[tok]))
1.32 kristaps 1304: return(0);
1.43 kristaps 1305:
1.83 schwarze 1306: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.32 kristaps 1307: return(0);
1.1 kristaps 1308:
1.32 kristaps 1309: /* Standard appending of delimiters. */
1.1 kristaps 1310:
1.63 kristaps 1311: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1312: return(0);
1313:
1.32 kristaps 1314: /* Rewind scope, if applicable. */
1.1 kristaps 1315:
1.83 schwarze 1316: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1317: return(0);
1318:
1319: return(1);
1320: }
1321:
1322:
1323: static int
1324: blk_part_exp(MACRO_PROT_ARGS)
1325: {
1.60 kristaps 1326: int la, nl;
1.55 kristaps 1327: enum margserr ac;
1.43 kristaps 1328: struct mdoc_node *head; /* keep track of head */
1329: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1330: char *p;
1.53 kristaps 1331: enum mdoct ntok;
1.1 kristaps 1332:
1.60 kristaps 1333: nl = MDOC_NEWLINE & m->flags;
1334:
1.43 kristaps 1335: /*
1336: * The opening of an explicit macro having zero or more leading
1337: * punctuation nodes; a head with optional single element (the
1338: * case of `Eo'); and a body that may be empty.
1339: */
1.32 kristaps 1340:
1341: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1342: return(0);
1.32 kristaps 1343:
1.43 kristaps 1344: for (head = body = NULL; ; ) {
1.32 kristaps 1345: la = *pos;
1.53 kristaps 1346: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1347:
1.53 kristaps 1348: if (ARGS_ERROR == ac)
1.1 kristaps 1349: return(0);
1.53 kristaps 1350: if (ARGS_PUNCT == ac)
1.1 kristaps 1351: break;
1.53 kristaps 1352: if (ARGS_EOLN == ac)
1.1 kristaps 1353: break;
1.43 kristaps 1354:
1355: /* Flush out leading punctuation. */
1356:
1.53 kristaps 1357: if (NULL == head && ARGS_QWORD != ac &&
1.67 schwarze 1358: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1359: assert(NULL == body);
1360: if ( ! mdoc_word_alloc(m, line, la, p))
1361: return(0);
1362: continue;
1363: }
1364:
1365: if (NULL == head) {
1366: assert(NULL == body);
1367: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1368: return(0);
1.43 kristaps 1369: head = m->last;
1.1 kristaps 1370: }
1371:
1.43 kristaps 1372: /*
1373: * `Eo' gobbles any data into the head, but most other
1374: * macros just immediately close out and begin the body.
1375: */
1376:
1377: if (NULL == body) {
1378: assert(head);
1379: /* No check whether it's a macro! */
1380: if (MDOC_Eo == tok)
1381: if ( ! mdoc_word_alloc(m, line, la, p))
1382: return(0);
1383:
1.32 kristaps 1384: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1385: return(0);
1.32 kristaps 1386: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1387: return(0);
1.43 kristaps 1388: body = m->last;
1389:
1390: if (MDOC_Eo == tok)
1391: continue;
1.1 kristaps 1392: }
1.43 kristaps 1393:
1394: assert(NULL != head && NULL != body);
1395:
1.54 kristaps 1396: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1397:
1398: if (MDOC_MAX == ntok) {
1.53 kristaps 1399: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1400: return(0);
1.53 kristaps 1401: continue;
1.43 kristaps 1402: }
1403:
1.82 kristaps 1404: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1405: return(0);
1.53 kristaps 1406: break;
1.1 kristaps 1407: }
1408:
1.43 kristaps 1409: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1410:
1.43 kristaps 1411: if (NULL == head) {
1412: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1413: return(0);
1414: head = m->last;
1415: }
1416:
1417: if (NULL == body) {
1.32 kristaps 1418: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1419: return(0);
1.32 kristaps 1420: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1421: return(0);
1.43 kristaps 1422: body = m->last;
1.1 kristaps 1423: }
1424:
1.32 kristaps 1425: /* Standard appending of delimiters. */
1426:
1.60 kristaps 1427: if ( ! nl)
1.1 kristaps 1428: return(1);
1.32 kristaps 1429: return(append_delims(m, line, pos, buf));
1.1 kristaps 1430: }
1431:
1432:
1.61 kristaps 1433: /* ARGSUSED */
1.1 kristaps 1434: static int
1435: in_line_argn(MACRO_PROT_ARGS)
1436: {
1.60 kristaps 1437: int la, flushed, j, maxargs, nl;
1.55 kristaps 1438: enum margserr ac;
1.56 kristaps 1439: enum margverr av;
1.53 kristaps 1440: struct mdoc_arg *arg;
1441: char *p;
1442: enum mdoct ntok;
1.1 kristaps 1443:
1.60 kristaps 1444: nl = MDOC_NEWLINE & m->flags;
1445:
1.46 kristaps 1446: /*
1447: * A line macro that has a fixed number of arguments (maxargs).
1448: * Only open the scope once the first non-leading-punctuation is
1449: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1450: * keep it open until the maximum number of arguments are
1451: * exhausted.
1452: */
1.1 kristaps 1453:
1454: switch (tok) {
1455: case (MDOC_Ap):
1456: /* FALLTHROUGH */
1457: case (MDOC_No):
1458: /* FALLTHROUGH */
1459: case (MDOC_Ns):
1460: /* FALLTHROUGH */
1461: case (MDOC_Ux):
1462: maxargs = 0;
1463: break;
1.101 ! kristaps 1464: case (MDOC_Bx):
! 1465: /* FALLTHROUGH */
1.42 kristaps 1466: case (MDOC_Xr):
1467: maxargs = 2;
1468: break;
1.1 kristaps 1469: default:
1470: maxargs = 1;
1471: break;
1472: }
1473:
1.46 kristaps 1474: for (arg = NULL; ; ) {
1.32 kristaps 1475: la = *pos;
1.56 kristaps 1476: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1477:
1.56 kristaps 1478: if (ARGV_WORD == av) {
1.32 kristaps 1479: *pos = la;
1.1 kristaps 1480: break;
1481: }
1482:
1.56 kristaps 1483: if (ARGV_EOLN == av)
1.1 kristaps 1484: break;
1.56 kristaps 1485: if (ARGV_ARG == av)
1.1 kristaps 1486: continue;
1487:
1488: mdoc_argv_free(arg);
1489: return(0);
1490: }
1491:
1.46 kristaps 1492: for (flushed = j = 0; ; ) {
1.32 kristaps 1493: la = *pos;
1.53 kristaps 1494: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1495:
1.53 kristaps 1496: if (ARGS_ERROR == ac)
1.1 kristaps 1497: return(0);
1.53 kristaps 1498: if (ARGS_PUNCT == ac)
1.1 kristaps 1499: break;
1.53 kristaps 1500: if (ARGS_EOLN == ac)
1.1 kristaps 1501: break;
1502:
1.46 kristaps 1503: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1504: ARGS_QWORD != ac &&
1.67 schwarze 1505: 0 == j && DELIM_OPEN == mdoc_isdelim(p)) {
1.46 kristaps 1506: if ( ! mdoc_word_alloc(m, line, la, p))
1507: return(0);
1508: continue;
1509: } else if (0 == j)
1510: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1511: return(0);
1512:
1513: if (j == maxargs && ! flushed) {
1514: if ( ! rew_elem(m, tok))
1515: return(0);
1516: flushed = 1;
1517: }
1518:
1.54 kristaps 1519: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1520:
1521: if (MDOC_MAX != ntok) {
1.32 kristaps 1522: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1523: return(0);
1524: flushed = 1;
1.82 kristaps 1525: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1526: return(0);
1.46 kristaps 1527: j++;
1.1 kristaps 1528: break;
1529: }
1530:
1531: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1532: ARGS_QWORD != ac &&
1.67 schwarze 1533: ! flushed &&
1534: DELIM_NONE != mdoc_isdelim(p)) {
1.32 kristaps 1535: if ( ! rew_elem(m, tok))
1.1 kristaps 1536: return(0);
1537: flushed = 1;
1538: }
1.42 kristaps 1539:
1540: /*
1541: * XXX: this is a hack to work around groff's ugliness
1542: * as regards `Xr' and extraneous arguments. It should
1543: * ideally be deprecated behaviour, but because this is
1544: * code is no here, it's unlikely to be removed.
1545: */
1.43 kristaps 1546:
1.46 kristaps 1547: #ifdef __OpenBSD__
1.42 kristaps 1548: if (MDOC_Xr == tok && j == maxargs) {
1.46 kristaps 1549: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.42 kristaps 1550: return(0);
1551: if ( ! rew_elem(m, MDOC_Ns))
1552: return(0);
1553: }
1.46 kristaps 1554: #endif
1.42 kristaps 1555:
1.32 kristaps 1556: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1557: return(0);
1.46 kristaps 1558: j++;
1.1 kristaps 1559: }
1560:
1.46 kristaps 1561: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1562: return(0);
1563:
1564: /* Close out in a consistent state. */
1.32 kristaps 1565:
1566: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1567: return(0);
1.60 kristaps 1568: if ( ! nl)
1.1 kristaps 1569: return(1);
1.32 kristaps 1570: return(append_delims(m, line, pos, buf));
1.1 kristaps 1571: }
1572:
1573:
1574: static int
1575: in_line_eoln(MACRO_PROT_ARGS)
1576: {
1.56 kristaps 1577: int la;
1.55 kristaps 1578: enum margserr ac;
1.56 kristaps 1579: enum margverr av;
1.53 kristaps 1580: struct mdoc_arg *arg;
1581: char *p;
1582: enum mdoct ntok;
1.1 kristaps 1583:
1584: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1585:
1.90 schwarze 1586: if (tok == MDOC_Pp)
1587: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1588:
1.32 kristaps 1589: /* Parse macro arguments. */
1.1 kristaps 1590:
1.32 kristaps 1591: for (arg = NULL; ; ) {
1.1 kristaps 1592: la = *pos;
1.56 kristaps 1593: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1594:
1.56 kristaps 1595: if (ARGV_WORD == av) {
1.1 kristaps 1596: *pos = la;
1597: break;
1598: }
1.56 kristaps 1599: if (ARGV_EOLN == av)
1.1 kristaps 1600: break;
1.56 kristaps 1601: if (ARGV_ARG == av)
1.1 kristaps 1602: continue;
1603:
1604: mdoc_argv_free(arg);
1605: return(0);
1606: }
1607:
1.32 kristaps 1608: /* Open element scope. */
1609:
1610: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1611: return(0);
1612:
1.32 kristaps 1613: /* Parse argument terms. */
1.1 kristaps 1614:
1615: for (;;) {
1616: la = *pos;
1.53 kristaps 1617: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1618:
1.53 kristaps 1619: if (ARGS_ERROR == ac)
1.1 kristaps 1620: return(0);
1.53 kristaps 1621: if (ARGS_EOLN == ac)
1.1 kristaps 1622: break;
1623:
1.53 kristaps 1624: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1625:
1.53 kristaps 1626: if (MDOC_MAX == ntok) {
1627: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1628: return(0);
1.53 kristaps 1629: continue;
1630: }
1.1 kristaps 1631:
1.53 kristaps 1632: if ( ! rew_elem(m, tok))
1.1 kristaps 1633: return(0);
1.82 kristaps 1634: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1635: }
1636:
1.32 kristaps 1637: /* Close out (no delimiters). */
1638:
1639: return(rew_elem(m, tok));
1.1 kristaps 1640: }
1641:
1642:
1643: /* ARGSUSED */
1644: static int
1.41 kristaps 1645: ctx_synopsis(MACRO_PROT_ARGS)
1646: {
1.60 kristaps 1647: int nl;
1648:
1649: nl = MDOC_NEWLINE & m->flags;
1.41 kristaps 1650:
1651: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.90 schwarze 1652: if ( ! (MDOC_SYNOPSIS & m->flags))
1.82 kristaps 1653: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1654:
1655: /* If we're a nested call, same place. */
1.60 kristaps 1656: if ( ! nl)
1.82 kristaps 1657: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1658:
1659: /*
1660: * XXX: this will open a block scope; however, if later we end
1661: * up formatting the block scope, then child nodes will inherit
1662: * the formatting. Be careful.
1663: */
1.88 schwarze 1664: if (MDOC_Nm == tok)
1665: return(blk_full(m, tok, line, ppos, pos, buf));
1666: assert(MDOC_Vt == tok);
1.82 kristaps 1667: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.41 kristaps 1668: }
1669:
1670:
1671: /* ARGSUSED */
1672: static int
1.1 kristaps 1673: obsolete(MACRO_PROT_ARGS)
1674: {
1675:
1.68 kristaps 1676: return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS));
1.1 kristaps 1677: }
1678:
1679:
1.24 kristaps 1680: /*
1681: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1682: * They're unusual because they're basically free-form text until a
1683: * macro is encountered.
1684: */
1.1 kristaps 1685: static int
1.82 kristaps 1686: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1687: {
1.53 kristaps 1688: int la, pos;
1.75 kristaps 1689: enum margserr ac;
1.53 kristaps 1690: enum mdoct ntok;
1691: char *p;
1.1 kristaps 1692:
1.24 kristaps 1693: for (pos = ppos; ; ) {
1694: la = pos;
1.1 kristaps 1695:
1.75 kristaps 1696: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1697:
1.75 kristaps 1698: if (ARGS_ERROR == ac)
1.24 kristaps 1699: return(0);
1.75 kristaps 1700: if (ARGS_EOLN == ac)
1.24 kristaps 1701: break;
1.1 kristaps 1702:
1.75 kristaps 1703: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1704:
1.53 kristaps 1705: if (MDOC_MAX == ntok) {
1706: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1707: return(0);
1.53 kristaps 1708: continue;
1709: }
1.1 kristaps 1710:
1.82 kristaps 1711: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1712: return(0);
1.53 kristaps 1713: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1714: }
1715:
1716: return(1);
1717: }
1.24 kristaps 1718:
1719:
1.79 kristaps 1720: /* ARGSUSED */
1.75 kristaps 1721: static int
1722: phrase_ta(MACRO_PROT_ARGS)
1723: {
1724: int la;
1725: enum mdoct ntok;
1726: enum margserr ac;
1727: char *p;
1728:
1729: /*
1730: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1731: * it should simply error out with ARGSLOST.
1732: */
1733:
1734: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1735: return(0);
1736: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1737: return(0);
1738:
1739: for (;;) {
1740: la = *pos;
1741: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1742:
1743: if (ARGS_ERROR == ac)
1744: return(0);
1745: if (ARGS_EOLN == ac)
1746: break;
1747:
1748: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1749:
1750: if (MDOC_MAX == ntok) {
1751: if ( ! mdoc_word_alloc(m, line, la, p))
1752: return(0);
1753: continue;
1754: }
1755:
1.82 kristaps 1756: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.75 kristaps 1757: return(0);
1758: return(append_delims(m, line, pos, buf));
1759: }
1760:
1761: return(1);
1762: }
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