Annotation of mandoc/mdoc_macro.c, Revision 1.92
1.92 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.91 2010/07/02 10:53:28 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,
37: REWIND_LATER,
1.91 kristaps 38: REWIND_ERROR
1.51 kristaps 39: };
1.1 kristaps 40:
1.53 kristaps 41: static int blk_full(MACRO_PROT_ARGS);
42: static int blk_exp_close(MACRO_PROT_ARGS);
43: static int blk_part_exp(MACRO_PROT_ARGS);
44: static int blk_part_imp(MACRO_PROT_ARGS);
45: static int ctx_synopsis(MACRO_PROT_ARGS);
46: static int in_line_eoln(MACRO_PROT_ARGS);
47: static int in_line_argn(MACRO_PROT_ARGS);
48: static int in_line(MACRO_PROT_ARGS);
49: static int obsolete(MACRO_PROT_ARGS);
1.75 kristaps 50: static int phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 51:
52: static int append_delims(struct mdoc *,
53: int, int *, char *);
1.58 kristaps 54: static enum mdoct lookup(enum mdoct, const char *);
1.53 kristaps 55: static enum mdoct lookup_raw(const char *);
1.85 schwarze 56: static int make_pending(struct mdoc_node *, enum mdoct,
1.83 schwarze 57: struct mdoc *, int, int);
1.82 kristaps 58: static int phrase(struct mdoc *, int, int, char *);
1.53 kristaps 59: static enum mdoct rew_alt(enum mdoct);
60: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
61: const struct mdoc_node *);
62: static int rew_elem(struct mdoc *, enum mdoct);
63: static int rew_last(struct mdoc *,
64: const struct mdoc_node *);
65: static int rew_sub(enum mdoc_type, struct mdoc *,
66: enum mdoct, int, int);
1.1 kristaps 67:
68: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.13 kristaps 69: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
1.1 kristaps 70: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
71: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
72: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
73: { blk_full, 0 }, /* Sh */
74: { blk_full, 0 }, /* Ss */
1.21 kristaps 75: { in_line_eoln, 0 }, /* Pp */
1.1 kristaps 76: { blk_part_imp, MDOC_PARSED }, /* D1 */
77: { blk_part_imp, MDOC_PARSED }, /* Dl */
78: { blk_full, MDOC_EXPLICIT }, /* Bd */
79: { blk_exp_close, MDOC_EXPLICIT }, /* Ed */
80: { blk_full, MDOC_EXPLICIT }, /* Bl */
81: { blk_exp_close, MDOC_EXPLICIT }, /* El */
82: { blk_full, MDOC_PARSED }, /* It */
83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.10 kristaps 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.23 kristaps 86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
1.1 kristaps 87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
91: { in_line_eoln, 0 }, /* Ex */
92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
93: { in_line_eoln, 0 }, /* Fd */
94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
1.11 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.18 kristaps 98: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 99: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.19 kristaps 100: { blk_full, 0 }, /* Nd */
1.88 schwarze 101: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 102: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
103: { obsolete, 0 }, /* Ot */
104: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
105: { in_line_eoln, 0 }, /* Rv */
106: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
107: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.41 kristaps 108: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 109: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.1 kristaps 110: { in_line_eoln, 0 }, /* %A */
111: { in_line_eoln, 0 }, /* %B */
112: { in_line_eoln, 0 }, /* %D */
113: { in_line_eoln, 0 }, /* %I */
114: { in_line_eoln, 0 }, /* %J */
115: { in_line_eoln, 0 }, /* %N */
116: { in_line_eoln, 0 }, /* %O */
117: { in_line_eoln, 0 }, /* %P */
118: { in_line_eoln, 0 }, /* %R */
119: { in_line_eoln, 0 }, /* %T */
120: { in_line_eoln, 0 }, /* %V */
121: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
122: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
123: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
124: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
125: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
126: { blk_full, MDOC_EXPLICIT }, /* Bf */
127: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
128: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
129: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
130: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
131: { in_line_eoln, 0 }, /* Db */
132: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
133: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
134: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
135: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
136: { blk_exp_close, MDOC_EXPLICIT }, /* Ef */
137: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
138: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
139: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 140: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.1 kristaps 141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* No */
142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ns */
143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
144: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
145: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.52 kristaps 146: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.1 kristaps 147: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
148: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
149: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
150: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
151: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
152: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
153: { blk_exp_close, MDOC_EXPLICIT }, /* Re */
154: { blk_full, MDOC_EXPLICIT }, /* Rs */
155: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
156: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
157: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
158: { in_line_eoln, 0 }, /* Sm */
159: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
160: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
161: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
162: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
163: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
164: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
165: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
166: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
167: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
168: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
169: { blk_full, MDOC_EXPLICIT }, /* Bk */
170: { blk_exp_close, MDOC_EXPLICIT }, /* Ek */
171: { in_line_eoln, 0 }, /* Bt */
172: { in_line_eoln, 0 }, /* Hf */
173: { obsolete, 0 }, /* Fr */
174: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 175: { in_line, 0 }, /* Lb */
1.21 kristaps 176: { in_line_eoln, 0 }, /* Lp */
1.12 kristaps 177: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
178: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
1.1 kristaps 179: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
180: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
181: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
182: { in_line_eoln, 0 }, /* %C */
183: { obsolete, 0 }, /* Es */
184: { obsolete, 0 }, /* En */
185: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
186: { in_line_eoln, 0 }, /* %Q */
1.20 kristaps 187: { in_line_eoln, 0 }, /* br */
188: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 189: { in_line_eoln, 0 }, /* %U */
1.75 kristaps 190: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
1.1 kristaps 191: };
192:
193: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
194:
195:
196: /*
197: * This is called at the end of parsing. It must traverse up the tree,
198: * closing out open [implicit] scopes. Obviously, open explicit scopes
199: * are errors.
200: */
201: int
1.32 kristaps 202: mdoc_macroend(struct mdoc *m)
1.1 kristaps 203: {
204: struct mdoc_node *n;
205:
206: /* Scan for open explicit scopes. */
207:
1.32 kristaps 208: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 209:
210: for ( ; n; n = n->parent) {
211: if (MDOC_BLOCK != n->type)
212: continue;
213: if ( ! (MDOC_EXPLICIT & mdoc_macros[n->tok].flags))
214: continue;
1.68 kristaps 215: mdoc_nmsg(m, n, MANDOCERR_SYNTSCOPE);
216: return(0);
1.1 kristaps 217: }
218:
1.32 kristaps 219: /* Rewind to the first. */
220:
221: return(rew_last(m, m->first));
1.1 kristaps 222: }
223:
1.32 kristaps 224:
225: /*
226: * Look up a macro from within a subsequent context.
227: */
1.53 kristaps 228: static enum mdoct
1.58 kristaps 229: lookup(enum mdoct from, const char *p)
1.28 kristaps 230: {
1.36 kristaps 231: /* FIXME: make -diag lists be un-PARSED. */
1.28 kristaps 232:
233: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
234: return(MDOC_MAX);
1.35 kristaps 235: return(lookup_raw(p));
1.28 kristaps 236: }
237:
238:
1.32 kristaps 239: /*
240: * Lookup a macro following the initial line macro.
241: */
1.53 kristaps 242: static enum mdoct
1.35 kristaps 243: lookup_raw(const char *p)
1.1 kristaps 244: {
1.58 kristaps 245: enum mdoct res;
1.1 kristaps 246:
1.34 kristaps 247: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.28 kristaps 248: return(MDOC_MAX);
249: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 250: return(res);
251: return(MDOC_MAX);
252: }
253:
254:
255: static int
1.32 kristaps 256: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 257: {
258:
259: assert(to);
260: mdoc->next = MDOC_NEXT_SIBLING;
261:
262: /* LINTED */
263: while (mdoc->last != to) {
264: if ( ! mdoc_valid_post(mdoc))
265: return(0);
266: if ( ! mdoc_action_post(mdoc))
267: return(0);
268: mdoc->last = mdoc->last->parent;
269: assert(mdoc->last);
270: }
271:
272: if ( ! mdoc_valid_post(mdoc))
273: return(0);
274: return(mdoc_action_post(mdoc));
275: }
276:
277:
1.32 kristaps 278: /*
1.84 schwarze 279: * For a block closing macro, return the corresponding opening one.
280: * Otherwise, return the macro itself.
1.32 kristaps 281: */
1.47 kristaps 282: static enum mdoct
283: rew_alt(enum mdoct tok)
1.1 kristaps 284: {
285: switch (tok) {
286: case (MDOC_Ac):
287: return(MDOC_Ao);
288: case (MDOC_Bc):
289: return(MDOC_Bo);
290: case (MDOC_Brc):
291: return(MDOC_Bro);
292: case (MDOC_Dc):
293: return(MDOC_Do);
294: case (MDOC_Ec):
295: return(MDOC_Eo);
296: case (MDOC_Ed):
297: return(MDOC_Bd);
298: case (MDOC_Ef):
299: return(MDOC_Bf);
300: case (MDOC_Ek):
301: return(MDOC_Bk);
302: case (MDOC_El):
303: return(MDOC_Bl);
304: case (MDOC_Fc):
305: return(MDOC_Fo);
306: case (MDOC_Oc):
307: return(MDOC_Oo);
308: case (MDOC_Pc):
309: return(MDOC_Po);
310: case (MDOC_Qc):
311: return(MDOC_Qo);
312: case (MDOC_Re):
313: return(MDOC_Rs);
314: case (MDOC_Sc):
315: return(MDOC_So);
316: case (MDOC_Xc):
317: return(MDOC_Xo);
318: default:
1.84 schwarze 319: return(tok);
1.1 kristaps 320: }
321: /* NOTREACHED */
322: }
323:
324:
1.84 schwarze 325: /*
326: * Rewinding to tok, how do we have to handle *p?
327: * REWIND_NONE: *p would delimit tok, but no tok scope is open
328: * inside *p, so there is no need to rewind anything at all.
329: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
330: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
331: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
332: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 333: */
1.51 kristaps 334: static enum rew
1.47 kristaps 335: rew_dohalt(enum mdoct tok, enum mdoc_type type,
336: const struct mdoc_node *p)
1.1 kristaps 337: {
338:
1.86 schwarze 339: /*
340: * No matching token, no delimiting block, no broken block.
341: * This can happen when full implicit macros are called for
342: * the first time but try to rewind their previous
343: * instance anyway.
344: */
1.1 kristaps 345: if (MDOC_ROOT == p->type)
1.84 schwarze 346: return(MDOC_BLOCK == type &&
347: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
348: REWIND_ERROR : REWIND_NONE);
1.86 schwarze 349:
350: /*
351: * When starting to rewind, skip plain text
352: * and nodes that have already been rewound.
353: */
1.84 schwarze 354: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
355: return(REWIND_MORE);
356:
1.86 schwarze 357: /*
358: * The easiest case: Found a matching token.
359: * This applies to both blocks and elements.
360: */
1.84 schwarze 361: tok = rew_alt(tok);
362: if (tok == p->tok)
363: return(p->end ? REWIND_NONE :
364: type == p->type ? REWIND_THIS : REWIND_MORE);
365:
1.86 schwarze 366: /*
367: * While elements do require rewinding for themselves,
368: * they never affect rewinding of other nodes.
369: */
1.84 schwarze 370: if (MDOC_ELEM == p->type)
371: return(REWIND_MORE);
1.1 kristaps 372:
1.86 schwarze 373: /*
374: * Blocks delimited by our target token get REWIND_MORE.
375: * Blocks delimiting our target token get REWIND_NONE.
376: */
1.1 kristaps 377: switch (tok) {
1.84 schwarze 378: case (MDOC_Bl):
379: if (MDOC_It == p->tok)
380: return(REWIND_MORE);
1.1 kristaps 381: break;
382: case (MDOC_It):
383: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.84 schwarze 384: return(REWIND_NONE);
1.1 kristaps 385: break;
1.84 schwarze 386: /*
387: * XXX Badly nested block handling still fails badly
388: * when one block is breaking two blocks of the same type.
389: * This is an incomplete and extremely ugly workaround,
390: * required to let the OpenBSD tree build.
391: */
392: case (MDOC_Oo):
393: if (MDOC_Op == p->tok)
394: return(REWIND_MORE);
1.1 kristaps 395: break;
1.88 schwarze 396: case (MDOC_Nm):
397: return(REWIND_NONE);
1.19 kristaps 398: case (MDOC_Nd):
399: /* FALLTHROUGH */
1.1 kristaps 400: case (MDOC_Ss):
401: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.84 schwarze 402: return(REWIND_NONE);
1.1 kristaps 403: /* FALLTHROUGH */
404: case (MDOC_Sh):
1.84 schwarze 405: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
406: MDOC_Sh == p->tok)
407: return(REWIND_MORE);
1.1 kristaps 408: break;
409: default:
410: break;
411: }
412:
1.86 schwarze 413: /*
414: * Default block rewinding rules.
1.88 schwarze 415: * In particular, always skip block end markers,
416: * and let all blocks rewind Nm children.
1.86 schwarze 417: */
1.88 schwarze 418: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
419: (MDOC_BLOCK == p->type &&
1.86 schwarze 420: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
421: return(REWIND_MORE);
422:
423: /*
424: * Partial blocks allow delayed rewinding by default.
425: */
426: if (&blk_full != mdoc_macros[tok].fp)
427: return (REWIND_LATER);
428:
429: /*
430: * Full blocks can only be rewound when matching
431: * or when there is an explicit rule.
432: */
433: return(REWIND_ERROR);
1.1 kristaps 434: }
435:
436:
437: static int
1.47 kristaps 438: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 439: {
440: struct mdoc_node *n;
441:
442: n = mdoc->last;
443: if (MDOC_ELEM != n->type)
444: n = n->parent;
445: assert(MDOC_ELEM == n->type);
446: assert(tok == n->tok);
447:
448: return(rew_last(mdoc, n));
449: }
450:
451:
1.83 schwarze 452: /*
453: * We are trying to close a block identified by tok,
454: * but the child block *broken is still open.
455: * Thus, postpone closing the tok block
456: * until the rew_sub call closing *broken.
457: */
458: static int
459: make_pending(struct mdoc_node *broken, enum mdoct tok,
460: struct mdoc *m, int line, int ppos)
461: {
462: struct mdoc_node *breaker;
463:
464: /*
465: * Iterate backwards, searching for the block matching tok,
466: * that is, the block breaking the *broken block.
467: */
468: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
469:
470: /*
471: * If the *broken block had already been broken before
472: * and we encounter its breaker, make the tok block
473: * pending on the inner breaker.
474: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
475: * becomes "[A broken=[B [C->B B] tok=A] C]"
476: * and finally "[A [B->A [C->B B] A] C]".
477: */
478: if (breaker == broken->pending) {
479: broken = breaker;
480: continue;
481: }
482:
1.84 schwarze 483: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.83 schwarze 484: continue;
485: if (MDOC_BODY == broken->type)
486: broken = broken->parent;
487:
488: /*
489: * Found the breaker.
490: * If another, outer breaker is already pending on
491: * the *broken block, we must not clobber the link
492: * to the outer breaker, but make it pending on the
493: * new, now inner breaker.
494: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
495: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
496: * and finally "[A [B->A [C->B A] B] C]".
497: */
498: if (broken->pending) {
499: struct mdoc_node *taker;
500:
501: /*
502: * If the breaker had also been broken before,
503: * it cannot take on the outer breaker itself,
504: * but must hand it on to its own breakers.
505: * Graphically, this is the following situation:
506: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
507: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
508: */
509: taker = breaker;
510: while (taker->pending)
511: taker = taker->pending;
512: taker->pending = broken->pending;
513: }
514: broken->pending = breaker;
1.88 schwarze 515: mdoc_vmsg(m, MANDOCERR_SCOPENEST, line, ppos,
516: "%s breaks %s", mdoc_macronames[tok],
517: mdoc_macronames[broken->tok]);
1.83 schwarze 518: return(1);
519: }
520:
521: /*
522: * Found no matching block for tok.
523: * Are you trying to close a block that is not open?
1.84 schwarze 524: * XXX Make this non-fatal.
1.83 schwarze 525: */
526: mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE);
527: return(0);
528: }
529:
1.84 schwarze 530:
1.1 kristaps 531: static int
1.32 kristaps 532: rew_sub(enum mdoc_type t, struct mdoc *m,
1.47 kristaps 533: enum mdoct tok, int line, int ppos)
1.1 kristaps 534: {
535: struct mdoc_node *n;
536:
1.84 schwarze 537: n = m->last;
538: while (n) {
539: switch (rew_dohalt(tok, t, n)) {
540: case (REWIND_NONE):
541: return(1);
542: case (REWIND_THIS):
543: break;
544: case (REWIND_MORE):
545: n = n->parent;
546: continue;
547: case (REWIND_LATER):
548: return(make_pending(n, tok, m, line, ppos));
549: case (REWIND_ERROR):
550: /* XXX Make this non-fatal. */
1.88 schwarze 551: mdoc_vmsg(m, MANDOCERR_SCOPEFATAL, line, ppos,
552: "%s cannot break %s", mdoc_macronames[tok],
553: mdoc_macronames[n->tok]);
1.84 schwarze 554: return 0;
1.32 kristaps 555: }
1.84 schwarze 556: break;
1.1 kristaps 557: }
558:
559: assert(n);
1.47 kristaps 560: if ( ! rew_last(m, n))
561: return(0);
562:
563: /*
1.83 schwarze 564: * The current block extends an enclosing block.
565: * Now that the current block ends, close the enclosing block, too.
1.47 kristaps 566: */
1.83 schwarze 567: while (NULL != (n = n->pending)) {
1.47 kristaps 568: if ( ! rew_last(m, n))
569: return(0);
1.83 schwarze 570: if (MDOC_HEAD == n->type &&
571: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.47 kristaps 572: return(0);
573: }
574:
575: return(1);
1.1 kristaps 576: }
577:
578:
579: static int
1.66 kristaps 580: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 581: {
1.66 kristaps 582: int la;
1.55 kristaps 583: enum margserr ac;
1.1 kristaps 584: char *p;
585:
1.66 kristaps 586: if ('\0' == buf[*pos])
1.1 kristaps 587: return(1);
588:
589: for (;;) {
1.66 kristaps 590: la = *pos;
591: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 592:
1.53 kristaps 593: if (ARGS_ERROR == ac)
1.1 kristaps 594: return(0);
1.53 kristaps 595: else if (ARGS_EOLN == ac)
1.1 kristaps 596: break;
1.66 kristaps 597:
1.67 schwarze 598: assert(DELIM_NONE != mdoc_isdelim(p));
1.66 kristaps 599: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 600: return(0);
1.66 kristaps 601:
602: /*
603: * If we encounter end-of-sentence symbols, then trigger
604: * the double-space.
605: *
606: * XXX: it's easy to allow this to propogate outward to
607: * the last symbol, such that `. )' will cause the
608: * correct double-spacing. However, (1) groff isn't
609: * smart enough to do this and (2) it would require
610: * knowing which symbols break this behaviour, for
611: * example, `. ;' shouldn't propogate the double-space.
612: */
613: if (mandoc_eos(p, strlen(p)))
614: m->last->flags |= MDOC_EOS;
1.1 kristaps 615: }
616:
617: return(1);
618: }
619:
620:
621: /*
622: * Close out block partial/full explicit.
623: */
624: static int
625: blk_exp_close(MACRO_PROT_ARGS)
626: {
1.83 schwarze 627: struct mdoc_node *body; /* Our own body. */
628: struct mdoc_node *later; /* A sub-block starting later. */
629: struct mdoc_node *n; /* For searching backwards. */
630:
1.60 kristaps 631: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 632: enum margserr ac;
1.83 schwarze 633: enum mdoct atok, ntok;
1.1 kristaps 634: char *p;
635:
1.60 kristaps 636: nl = MDOC_NEWLINE & m->flags;
637:
1.1 kristaps 638: switch (tok) {
639: case (MDOC_Ec):
640: maxargs = 1;
641: break;
642: default:
643: maxargs = 0;
644: break;
645: }
646:
1.83 schwarze 647: /*
648: * Search backwards for beginnings of blocks,
649: * both of our own and of pending sub-blocks.
650: */
651: atok = rew_alt(tok);
652: body = later = NULL;
653: for (n = m->last; n; n = n->parent) {
654: if (MDOC_VALID & n->flags)
655: continue;
656:
657: /* Remember the start of our own body. */
658: if (MDOC_BODY == n->type && atok == n->tok) {
1.87 kristaps 659: if (ENDBODY_NOT == n->end)
1.83 schwarze 660: body = n;
661: continue;
662: }
663:
1.88 schwarze 664: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.83 schwarze 665: continue;
666: if (atok == n->tok) {
667: assert(body);
668:
669: /*
670: * Found the start of our own block.
671: * When there is no pending sub block,
672: * just proceed to closing out.
673: */
674: if (NULL == later)
675: break;
676:
677: /*
678: * When there is a pending sub block,
679: * postpone closing out the current block
680: * until the rew_sub() closing out the sub-block.
681: */
682: if ( ! make_pending(later, tok, m, line, ppos))
683: return(0);
684:
685: /*
686: * Mark the place where the formatting - but not
687: * the scope - of the current block ends.
688: */
689: if ( ! mdoc_endbody_alloc(m, line, ppos,
690: atok, body, ENDBODY_SPACE))
691: return(0);
692: break;
693: }
694:
695: /*
696: * When finding an open sub block, remember the last
697: * open explicit block, or, in case there are only
698: * implicit ones, the first open implicit block.
699: */
700: if (later &&
701: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
702: continue;
703: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags) {
704: assert( ! (MDOC_ACTED & n->flags));
705: later = n;
706: }
707: }
708:
1.1 kristaps 709: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.68 kristaps 710: /* FIXME: do this in validate */
1.22 kristaps 711: if (buf[*pos])
1.68 kristaps 712: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST))
1.1 kristaps 713: return(0);
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 */
1.12 kristaps 797: case (MDOC_Lk):
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);
1.68 kristaps 856: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 857: return(0);
1.7 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:
1.67 schwarze 872: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_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);
1.68 kristaps 938: if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY))
1.3 kristaps 939: return(0);
1.7 kristaps 940: }
1.4 kristaps 941:
1.60 kristaps 942: if ( ! nl)
1.1 kristaps 943: return(1);
1.32 kristaps 944: return(append_delims(m, line, pos, buf));
1.1 kristaps 945: }
946:
947:
948: static int
949: blk_full(MACRO_PROT_ARGS)
950: {
1.63 kristaps 951: int la, nl;
1.1 kristaps 952: struct mdoc_arg *arg;
1.45 kristaps 953: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 954: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 955: struct mdoc_node *n;
1.74 kristaps 956: enum mdoc_type mtt;
1.53 kristaps 957: enum mdoct ntok;
1.59 kristaps 958: enum margserr ac, lac;
1.56 kristaps 959: enum margverr av;
1.1 kristaps 960: char *p;
961:
1.63 kristaps 962: nl = MDOC_NEWLINE & m->flags;
963:
1.45 kristaps 964: /* Close out prior implicit scope. */
1.19 kristaps 965:
1.1 kristaps 966: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.32 kristaps 967: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 968: return(0);
1.32 kristaps 969: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 970: return(0);
971: }
972:
1.45 kristaps 973: /*
974: * This routine accomodates implicitly- and explicitly-scoped
975: * macro openings. Implicit ones first close out prior scope
976: * (seen above). Delay opening the head until necessary to
977: * allow leading punctuation to print. Special consideration
978: * for `It -column', which has phrase-part syntax instead of
979: * regular child nodes.
980: */
981:
1.1 kristaps 982: for (arg = NULL;; ) {
1.45 kristaps 983: la = *pos;
1.56 kristaps 984: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 985:
1.56 kristaps 986: if (ARGV_WORD == av) {
1.45 kristaps 987: *pos = la;
1.1 kristaps 988: break;
989: }
990:
1.56 kristaps 991: if (ARGV_EOLN == av)
1.1 kristaps 992: break;
1.56 kristaps 993: if (ARGV_ARG == av)
1.1 kristaps 994: continue;
995:
996: mdoc_argv_free(arg);
997: return(0);
998: }
999:
1.32 kristaps 1000: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1001: return(0);
1002:
1.49 kristaps 1003: head = body = NULL;
1.1 kristaps 1004:
1.45 kristaps 1005: /*
1006: * The `Nd' macro has all arguments in its body: it's a hybrid
1007: * of block partial-explicit and full-implicit. Stupid.
1008: */
1.19 kristaps 1009:
1.45 kristaps 1010: if (MDOC_Nd == tok) {
1011: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1012: return(0);
1013: head = m->last;
1.32 kristaps 1014: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.19 kristaps 1015: return(0);
1.32 kristaps 1016: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.19 kristaps 1017: return(0);
1.49 kristaps 1018: body = m->last;
1.19 kristaps 1019: }
1020:
1.59 kristaps 1021: ac = ARGS_ERROR;
1022:
1.62 kristaps 1023: for ( ; ; ) {
1.45 kristaps 1024: la = *pos;
1.75 kristaps 1025: /* Initialise last-phrase-type with ARGS_PEND. */
1026: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.53 kristaps 1027: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.89 schwarze 1028:
1029: if (ARGS_PUNCT == ac)
1030: break;
1.1 kristaps 1031:
1.53 kristaps 1032: if (ARGS_ERROR == ac)
1.1 kristaps 1033: return(0);
1.75 kristaps 1034:
1035: if (ARGS_EOLN == ac) {
1036: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1037: break;
1038: /*
1039: * This is necessary: if the last token on a
1040: * line is a `Ta' or tab, then we'll get
1041: * ARGS_EOLN, so we must be smart enough to
1042: * reopen our scope if the last parse was a
1043: * phrase or partial phrase.
1044: */
1045: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1046: return(0);
1047: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1048: return(0);
1049: body = m->last;
1.1 kristaps 1050: break;
1.75 kristaps 1051: }
1.45 kristaps 1052:
1.73 kristaps 1053: /*
1054: * Emit leading punctuation (i.e., punctuation before
1055: * the MDOC_HEAD) for non-phrase types.
1056: */
1.45 kristaps 1057:
1.59 kristaps 1058: if (NULL == head &&
1.71 kristaps 1059: ARGS_PEND != ac &&
1.59 kristaps 1060: ARGS_PHRASE != ac &&
1.57 kristaps 1061: ARGS_PPHRASE != ac &&
1.53 kristaps 1062: ARGS_QWORD != ac &&
1.67 schwarze 1063: DELIM_OPEN == mdoc_isdelim(p)) {
1.45 kristaps 1064: if ( ! mdoc_word_alloc(m, line, la, p))
1065: return(0);
1066: continue;
1067: }
1068:
1.74 kristaps 1069: /* Open a head if one hasn't been opened. */
1.45 kristaps 1070:
1.74 kristaps 1071: if (NULL == head) {
1.45 kristaps 1072: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1073: return(0);
1074: head = m->last;
1075: }
1076:
1.72 kristaps 1077: if (ARGS_PHRASE == ac ||
1078: ARGS_PEND == ac ||
1079: ARGS_PPHRASE == ac) {
1.73 kristaps 1080: /*
1.74 kristaps 1081: * If we haven't opened a body yet, rewind the
1082: * head; if we have, rewind that instead.
1083: */
1084:
1085: mtt = body ? MDOC_BODY : MDOC_HEAD;
1086: if ( ! rew_sub(mtt, m, tok, line, ppos))
1087: return(0);
1088:
1089: /* Then allocate our body context. */
1090:
1091: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1092: return(0);
1093: body = m->last;
1094:
1095: /*
1.73 kristaps 1096: * Process phrases: set whether we're in a
1097: * partial-phrase (this effects line handling)
1098: * then call down into the phrase parser.
1099: */
1.74 kristaps 1100:
1.65 kristaps 1101: if (ARGS_PPHRASE == ac)
1102: m->flags |= MDOC_PPHRASE;
1.71 kristaps 1103: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1104: m->flags |= MDOC_PPHRASE;
1105:
1.82 kristaps 1106: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1107: return(0);
1.71 kristaps 1108:
1.65 kristaps 1109: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1110: continue;
1111: }
1112:
1.54 kristaps 1113: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1114:
1115: if (MDOC_MAX == ntok) {
1.53 kristaps 1116: if ( ! mdoc_word_alloc(m, line, la, p))
1.1 kristaps 1117: return(0);
1.53 kristaps 1118: continue;
1.45 kristaps 1119: }
1.53 kristaps 1120:
1.82 kristaps 1121: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.45 kristaps 1122: return(0);
1.53 kristaps 1123: break;
1.45 kristaps 1124: }
1.1 kristaps 1125:
1.45 kristaps 1126: if (NULL == head) {
1127: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1128: return(0);
1.45 kristaps 1129: head = m->last;
1.1 kristaps 1130: }
1131:
1.63 kristaps 1132: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1133: return(0);
1.19 kristaps 1134:
1.49 kristaps 1135: /* If we've already opened our body, exit now. */
1.45 kristaps 1136:
1.49 kristaps 1137: if (NULL != body)
1.77 kristaps 1138: goto out;
1.19 kristaps 1139:
1.47 kristaps 1140: /*
1.49 kristaps 1141: * If there is an open (i.e., unvalidated) sub-block requiring
1142: * explicit close-out, postpone switching the current block from
1143: * head to body until the rew_sub() call closing out that
1144: * sub-block.
1.47 kristaps 1145: */
1146: for (n = m->last; n && n != head; n = n->parent) {
1.49 kristaps 1147: if (MDOC_BLOCK == n->type &&
1148: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1149: ! (MDOC_VALID & n->flags)) {
1150: assert( ! (MDOC_ACTED & 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)
1269: if (mandoc_eos(n->string, strlen(n->string)))
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)) {
1288: assert( ! (MDOC_ACTED & n->flags));
1289: if ( ! make_pending(n, tok, m, line, ppos))
1290: return(0);
1291: if ( ! mdoc_endbody_alloc(m, line, ppos,
1292: tok, body, ENDBODY_NOSPACE))
1293: return(0);
1294: return(1);
1295: }
1296: }
1297:
1.32 kristaps 1298: /*
1299: * If we can't rewind to our body, then our scope has already
1300: * been closed by another macro (like `Oc' closing `Op'). This
1301: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1302: * crufty use of `Op' breakage.
1.1 kristaps 1303: */
1.88 schwarze 1304: if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPENEST,
1305: line, ppos, "%s broken", mdoc_macronames[tok]))
1.32 kristaps 1306: return(0);
1.43 kristaps 1307:
1.83 schwarze 1308: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.32 kristaps 1309: return(0);
1.1 kristaps 1310:
1.32 kristaps 1311: /* Standard appending of delimiters. */
1.1 kristaps 1312:
1.63 kristaps 1313: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1314: return(0);
1315:
1.32 kristaps 1316: /* Rewind scope, if applicable. */
1.1 kristaps 1317:
1.83 schwarze 1318: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1319: return(0);
1320:
1321: return(1);
1322: }
1323:
1324:
1325: static int
1326: blk_part_exp(MACRO_PROT_ARGS)
1327: {
1.60 kristaps 1328: int la, nl;
1.55 kristaps 1329: enum margserr ac;
1.43 kristaps 1330: struct mdoc_node *head; /* keep track of head */
1331: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1332: char *p;
1.53 kristaps 1333: enum mdoct ntok;
1.1 kristaps 1334:
1.60 kristaps 1335: nl = MDOC_NEWLINE & m->flags;
1336:
1.43 kristaps 1337: /*
1338: * The opening of an explicit macro having zero or more leading
1339: * punctuation nodes; a head with optional single element (the
1340: * case of `Eo'); and a body that may be empty.
1341: */
1.32 kristaps 1342:
1343: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1344: return(0);
1.32 kristaps 1345:
1.43 kristaps 1346: for (head = body = NULL; ; ) {
1.32 kristaps 1347: la = *pos;
1.53 kristaps 1348: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1349:
1.53 kristaps 1350: if (ARGS_ERROR == ac)
1.1 kristaps 1351: return(0);
1.53 kristaps 1352: if (ARGS_PUNCT == ac)
1.1 kristaps 1353: break;
1.53 kristaps 1354: if (ARGS_EOLN == ac)
1.1 kristaps 1355: break;
1.43 kristaps 1356:
1357: /* Flush out leading punctuation. */
1358:
1.53 kristaps 1359: if (NULL == head && ARGS_QWORD != ac &&
1.67 schwarze 1360: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1361: assert(NULL == body);
1362: if ( ! mdoc_word_alloc(m, line, la, p))
1363: return(0);
1364: continue;
1365: }
1366:
1367: if (NULL == head) {
1368: assert(NULL == body);
1369: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1370: return(0);
1.43 kristaps 1371: head = m->last;
1.1 kristaps 1372: }
1373:
1.43 kristaps 1374: /*
1375: * `Eo' gobbles any data into the head, but most other
1376: * macros just immediately close out and begin the body.
1377: */
1378:
1379: if (NULL == body) {
1380: assert(head);
1381: /* No check whether it's a macro! */
1382: if (MDOC_Eo == tok)
1383: if ( ! mdoc_word_alloc(m, line, la, p))
1384: return(0);
1385:
1.32 kristaps 1386: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1387: return(0);
1.32 kristaps 1388: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1389: return(0);
1.43 kristaps 1390: body = m->last;
1391:
1392: if (MDOC_Eo == tok)
1393: continue;
1.1 kristaps 1394: }
1.43 kristaps 1395:
1396: assert(NULL != head && NULL != body);
1397:
1.54 kristaps 1398: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1399:
1400: if (MDOC_MAX == ntok) {
1.53 kristaps 1401: if ( ! mdoc_word_alloc(m, line, la, p))
1.43 kristaps 1402: return(0);
1.53 kristaps 1403: continue;
1.43 kristaps 1404: }
1405:
1.82 kristaps 1406: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1407: return(0);
1.53 kristaps 1408: break;
1.1 kristaps 1409: }
1410:
1.43 kristaps 1411: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1412:
1.43 kristaps 1413: if (NULL == head) {
1414: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1415: return(0);
1416: head = m->last;
1417: }
1418:
1419: if (NULL == body) {
1.32 kristaps 1420: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1421: return(0);
1.32 kristaps 1422: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1423: return(0);
1.43 kristaps 1424: body = m->last;
1.1 kristaps 1425: }
1426:
1.32 kristaps 1427: /* Standard appending of delimiters. */
1428:
1.60 kristaps 1429: if ( ! nl)
1.1 kristaps 1430: return(1);
1.32 kristaps 1431: return(append_delims(m, line, pos, buf));
1.1 kristaps 1432: }
1433:
1434:
1.61 kristaps 1435: /* ARGSUSED */
1.1 kristaps 1436: static int
1437: in_line_argn(MACRO_PROT_ARGS)
1438: {
1.60 kristaps 1439: int la, flushed, j, maxargs, nl;
1.55 kristaps 1440: enum margserr ac;
1.56 kristaps 1441: enum margverr av;
1.53 kristaps 1442: struct mdoc_arg *arg;
1443: char *p;
1444: enum mdoct ntok;
1.1 kristaps 1445:
1.60 kristaps 1446: nl = MDOC_NEWLINE & m->flags;
1447:
1.46 kristaps 1448: /*
1449: * A line macro that has a fixed number of arguments (maxargs).
1450: * Only open the scope once the first non-leading-punctuation is
1451: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1452: * keep it open until the maximum number of arguments are
1453: * exhausted.
1454: */
1.1 kristaps 1455:
1456: switch (tok) {
1457: case (MDOC_Ap):
1458: /* FALLTHROUGH */
1459: case (MDOC_No):
1460: /* FALLTHROUGH */
1461: case (MDOC_Ns):
1462: /* FALLTHROUGH */
1463: case (MDOC_Ux):
1464: maxargs = 0;
1465: break;
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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