Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.74
1.74 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.73 2012/01/04 02:17:42 schwarze Exp $ */
1.1 kristaps 2: /*
1.74 ! schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
! 4: * Copyright (c) 2010, 2012 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.2 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
18: #include <assert.h>
19: #include <ctype.h>
20: #include <stdlib.h>
21: #include <stdio.h>
22: #include <string.h>
1.26 schwarze 23: #include <time.h>
1.1 kristaps 24:
1.66 schwarze 25: #include "mdoc.h"
1.44 schwarze 26: #include "mandoc.h"
1.1 kristaps 27: #include "libmdoc.h"
1.39 schwarze 28: #include "libmandoc.h"
1.1 kristaps 29:
1.48 schwarze 30: enum rew { /* see rew_dohalt() */
31: REWIND_NONE,
32: REWIND_THIS,
33: REWIND_MORE,
1.59 schwarze 34: REWIND_FORCE,
1.48 schwarze 35: REWIND_LATER,
1.54 schwarze 36: REWIND_ERROR
1.35 schwarze 37: };
1.1 kristaps 38:
1.36 schwarze 39: static int blk_full(MACRO_PROT_ARGS);
40: static int blk_exp_close(MACRO_PROT_ARGS);
41: static int blk_part_exp(MACRO_PROT_ARGS);
42: static int blk_part_imp(MACRO_PROT_ARGS);
43: static int ctx_synopsis(MACRO_PROT_ARGS);
44: static int in_line_eoln(MACRO_PROT_ARGS);
45: static int in_line_argn(MACRO_PROT_ARGS);
46: static int in_line(MACRO_PROT_ARGS);
47: static int obsolete(MACRO_PROT_ARGS);
1.46 schwarze 48: static int phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 49:
1.66 schwarze 50: static int dword(struct mdoc *, int, int,
51: const char *, enum mdelim);
1.36 schwarze 52: static int append_delims(struct mdoc *,
53: int, int *, char *);
54: static enum mdoct lookup(enum mdoct, const char *);
55: static enum mdoct lookup_raw(const char *);
1.49 schwarze 56: static int make_pending(struct mdoc_node *, enum mdoct,
1.47 schwarze 57: struct mdoc *, int, int);
1.46 schwarze 58: static int phrase(struct mdoc *, int, int, char *);
1.36 schwarze 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] = {
1.4 schwarze 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 */
1.69 schwarze 73: { blk_full, MDOC_PARSED }, /* Sh */
74: { blk_full, MDOC_PARSED }, /* Ss */
1.16 schwarze 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 */
1.3 schwarze 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.15 schwarze 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 */
1.3 schwarze 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.11 schwarze 98: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 99: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.12 schwarze 100: { blk_full, 0 }, /* Nd */
1.51 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 */
1.28 schwarze 108: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
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 */
1.3 schwarze 140: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.57 schwarze 141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* No */
142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Ns */
1.1 kristaps 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 */
1.35 schwarze 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 */
1.45 schwarze 175: { in_line, 0 }, /* Lb */
1.16 schwarze 176: { in_line_eoln, 0 }, /* Lp */
1.3 schwarze 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 */
1.13 schwarze 187: { in_line_eoln, 0 }, /* br */
188: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 189: { in_line_eoln, 0 }, /* %U */
1.46 schwarze 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
1.22 schwarze 202: mdoc_macroend(struct mdoc *m)
1.1 kristaps 203: {
204: struct mdoc_node *n;
205:
206: /* Scan for open explicit scopes. */
207:
1.22 schwarze 208: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 209:
1.56 schwarze 210: for ( ; n; n = n->parent)
211: if (MDOC_BLOCK == n->type &&
212: MDOC_EXPLICIT & mdoc_macros[n->tok].flags)
213: mdoc_nmsg(m, n, MANDOCERR_SCOPEEXIT);
1.1 kristaps 214:
1.22 schwarze 215: /* Rewind to the first. */
216:
217: return(rew_last(m, m->first));
1.1 kristaps 218: }
219:
1.22 schwarze 220:
221: /*
222: * Look up a macro from within a subsequent context.
223: */
1.36 schwarze 224: static enum mdoct
225: lookup(enum mdoct from, const char *p)
1.21 schwarze 226: {
227:
228: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
229: return(MDOC_MAX);
1.24 schwarze 230: return(lookup_raw(p));
1.21 schwarze 231: }
232:
233:
1.22 schwarze 234: /*
235: * Lookup a macro following the initial line macro.
236: */
1.36 schwarze 237: static enum mdoct
1.24 schwarze 238: lookup_raw(const char *p)
1.1 kristaps 239: {
1.36 schwarze 240: enum mdoct res;
1.1 kristaps 241:
1.24 schwarze 242: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.21 schwarze 243: return(MDOC_MAX);
244: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 245: return(res);
246: return(MDOC_MAX);
247: }
248:
249:
250: static int
1.22 schwarze 251: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 252: {
1.63 schwarze 253: struct mdoc_node *n, *np;
1.1 kristaps 254:
255: assert(to);
256: mdoc->next = MDOC_NEXT_SIBLING;
257:
258: /* LINTED */
259: while (mdoc->last != to) {
1.63 schwarze 260: /*
261: * Save the parent here, because we may delete the
262: * m->last node in the post-validation phase and reset
263: * it to m->last->parent, causing a step in the closing
264: * out to be lost.
265: */
266: np = mdoc->last->parent;
1.1 kristaps 267: if ( ! mdoc_valid_post(mdoc))
268: return(0);
1.61 schwarze 269: n = mdoc->last;
1.63 schwarze 270: mdoc->last = np;
1.1 kristaps 271: assert(mdoc->last);
1.61 schwarze 272: mdoc->last->last = n;
1.1 kristaps 273: }
274:
1.60 schwarze 275: return(mdoc_valid_post(mdoc));
1.1 kristaps 276: }
277:
278:
1.22 schwarze 279: /*
1.48 schwarze 280: * For a block closing macro, return the corresponding opening one.
281: * Otherwise, return the macro itself.
1.22 schwarze 282: */
1.34 schwarze 283: static enum mdoct
284: rew_alt(enum mdoct tok)
1.1 kristaps 285: {
286: switch (tok) {
287: case (MDOC_Ac):
288: return(MDOC_Ao);
289: case (MDOC_Bc):
290: return(MDOC_Bo);
291: case (MDOC_Brc):
292: return(MDOC_Bro);
293: case (MDOC_Dc):
294: return(MDOC_Do);
295: case (MDOC_Ec):
296: return(MDOC_Eo);
297: case (MDOC_Ed):
298: return(MDOC_Bd);
299: case (MDOC_Ef):
300: return(MDOC_Bf);
301: case (MDOC_Ek):
302: return(MDOC_Bk);
303: case (MDOC_El):
304: return(MDOC_Bl);
305: case (MDOC_Fc):
306: return(MDOC_Fo);
307: case (MDOC_Oc):
308: return(MDOC_Oo);
309: case (MDOC_Pc):
310: return(MDOC_Po);
311: case (MDOC_Qc):
312: return(MDOC_Qo);
313: case (MDOC_Re):
314: return(MDOC_Rs);
315: case (MDOC_Sc):
316: return(MDOC_So);
317: case (MDOC_Xc):
318: return(MDOC_Xo);
319: default:
1.48 schwarze 320: return(tok);
1.1 kristaps 321: }
322: /* NOTREACHED */
323: }
324:
325:
1.48 schwarze 326: /*
327: * Rewinding to tok, how do we have to handle *p?
328: * REWIND_NONE: *p would delimit tok, but no tok scope is open
329: * inside *p, so there is no need to rewind anything at all.
330: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
331: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.59 schwarze 332: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.48 schwarze 333: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
334: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 335: */
1.35 schwarze 336: static enum rew
1.34 schwarze 337: rew_dohalt(enum mdoct tok, enum mdoc_type type,
338: const struct mdoc_node *p)
1.1 kristaps 339: {
340:
1.50 schwarze 341: /*
342: * No matching token, no delimiting block, no broken block.
343: * This can happen when full implicit macros are called for
344: * the first time but try to rewind their previous
345: * instance anyway.
346: */
1.1 kristaps 347: if (MDOC_ROOT == p->type)
1.48 schwarze 348: return(MDOC_BLOCK == type &&
349: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
350: REWIND_ERROR : REWIND_NONE);
1.50 schwarze 351:
352: /*
353: * When starting to rewind, skip plain text
354: * and nodes that have already been rewound.
355: */
1.48 schwarze 356: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
357: return(REWIND_MORE);
358:
1.50 schwarze 359: /*
360: * The easiest case: Found a matching token.
361: * This applies to both blocks and elements.
362: */
1.48 schwarze 363: tok = rew_alt(tok);
364: if (tok == p->tok)
365: return(p->end ? REWIND_NONE :
366: type == p->type ? REWIND_THIS : REWIND_MORE);
367:
1.50 schwarze 368: /*
369: * While elements do require rewinding for themselves,
370: * they never affect rewinding of other nodes.
371: */
1.48 schwarze 372: if (MDOC_ELEM == p->type)
373: return(REWIND_MORE);
1.1 kristaps 374:
1.50 schwarze 375: /*
376: * Blocks delimited by our target token get REWIND_MORE.
377: * Blocks delimiting our target token get REWIND_NONE.
378: */
1.1 kristaps 379: switch (tok) {
1.48 schwarze 380: case (MDOC_Bl):
381: if (MDOC_It == p->tok)
382: return(REWIND_MORE);
1.1 kristaps 383: break;
384: case (MDOC_It):
385: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.48 schwarze 386: return(REWIND_NONE);
1.1 kristaps 387: break;
1.48 schwarze 388: /*
389: * XXX Badly nested block handling still fails badly
390: * when one block is breaking two blocks of the same type.
391: * This is an incomplete and extremely ugly workaround,
392: * required to let the OpenBSD tree build.
393: */
394: case (MDOC_Oo):
395: if (MDOC_Op == p->tok)
396: return(REWIND_MORE);
1.1 kristaps 397: break;
1.51 schwarze 398: case (MDOC_Nm):
399: return(REWIND_NONE);
1.12 schwarze 400: case (MDOC_Nd):
401: /* FALLTHROUGH */
1.1 kristaps 402: case (MDOC_Ss):
403: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.48 schwarze 404: return(REWIND_NONE);
1.1 kristaps 405: /* FALLTHROUGH */
406: case (MDOC_Sh):
1.48 schwarze 407: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
408: MDOC_Sh == p->tok)
409: return(REWIND_MORE);
1.1 kristaps 410: break;
411: default:
412: break;
413: }
414:
1.50 schwarze 415: /*
416: * Default block rewinding rules.
1.51 schwarze 417: * In particular, always skip block end markers,
418: * and let all blocks rewind Nm children.
1.50 schwarze 419: */
1.54 schwarze 420: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
1.51 schwarze 421: (MDOC_BLOCK == p->type &&
1.50 schwarze 422: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
423: return(REWIND_MORE);
424:
425: /*
1.59 schwarze 426: * By default, closing out full blocks
427: * forces closing of broken explicit blocks,
428: * while closing out partial blocks
429: * allows delayed rewinding by default.
1.50 schwarze 430: */
1.59 schwarze 431: return (&blk_full == mdoc_macros[tok].fp ?
432: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 433: }
434:
435:
436: static int
1.34 schwarze 437: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 438: {
439: struct mdoc_node *n;
440:
441: n = mdoc->last;
442: if (MDOC_ELEM != n->type)
443: n = n->parent;
444: assert(MDOC_ELEM == n->type);
445: assert(tok == n->tok);
446:
447: return(rew_last(mdoc, n));
448: }
449:
450:
1.47 schwarze 451: /*
452: * We are trying to close a block identified by tok,
453: * but the child block *broken is still open.
454: * Thus, postpone closing the tok block
455: * until the rew_sub call closing *broken.
456: */
457: static int
458: make_pending(struct mdoc_node *broken, enum mdoct tok,
459: struct mdoc *m, int line, int ppos)
460: {
461: struct mdoc_node *breaker;
462:
463: /*
464: * Iterate backwards, searching for the block matching tok,
465: * that is, the block breaking the *broken block.
466: */
467: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
468:
469: /*
470: * If the *broken block had already been broken before
471: * and we encounter its breaker, make the tok block
472: * pending on the inner breaker.
473: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
474: * becomes "[A broken=[B [C->B B] tok=A] C]"
475: * and finally "[A [B->A [C->B B] A] C]".
476: */
477: if (breaker == broken->pending) {
478: broken = breaker;
479: continue;
480: }
481:
1.48 schwarze 482: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.47 schwarze 483: continue;
484: if (MDOC_BODY == broken->type)
485: broken = broken->parent;
486:
487: /*
488: * Found the breaker.
489: * If another, outer breaker is already pending on
490: * the *broken block, we must not clobber the link
491: * to the outer breaker, but make it pending on the
492: * new, now inner breaker.
493: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
494: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
495: * and finally "[A [B->A [C->B A] B] C]".
496: */
497: if (broken->pending) {
498: struct mdoc_node *taker;
499:
500: /*
501: * If the breaker had also been broken before,
502: * it cannot take on the outer breaker itself,
503: * but must hand it on to its own breakers.
504: * Graphically, this is the following situation:
505: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
506: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
507: */
508: taker = breaker;
509: while (taker->pending)
510: taker = taker->pending;
511: taker->pending = broken->pending;
512: }
513: broken->pending = breaker;
1.66 schwarze 514: mandoc_vmsg(MANDOCERR_SCOPENEST, m->parse, line, ppos,
515: "%s breaks %s", mdoc_macronames[tok],
516: mdoc_macronames[broken->tok]);
1.47 schwarze 517: return(1);
518: }
519:
520: /*
521: * Found no matching block for tok.
522: * Are you trying to close a block that is not open?
523: */
524: return(0);
525: }
526:
1.48 schwarze 527:
1.1 kristaps 528: static int
1.22 schwarze 529: rew_sub(enum mdoc_type t, struct mdoc *m,
1.34 schwarze 530: enum mdoct tok, int line, int ppos)
1.1 kristaps 531: {
532: struct mdoc_node *n;
533:
1.48 schwarze 534: n = m->last;
535: while (n) {
536: switch (rew_dohalt(tok, t, n)) {
537: case (REWIND_NONE):
538: return(1);
539: case (REWIND_THIS):
540: break;
1.59 schwarze 541: case (REWIND_FORCE):
1.66 schwarze 542: mandoc_vmsg(MANDOCERR_SCOPEBROKEN, m->parse,
543: line, ppos, "%s breaks %s",
544: mdoc_macronames[tok],
545: mdoc_macronames[n->tok]);
1.59 schwarze 546: /* FALLTHROUGH */
1.48 schwarze 547: case (REWIND_MORE):
548: n = n->parent;
549: continue;
550: case (REWIND_LATER):
1.59 schwarze 551: if (make_pending(n, tok, m, line, ppos) ||
552: MDOC_BLOCK != t)
553: return(1);
554: /* FALLTHROUGH */
1.48 schwarze 555: case (REWIND_ERROR):
1.59 schwarze 556: mdoc_pmsg(m, line, ppos, MANDOCERR_NOSCOPE);
557: return(1);
1.22 schwarze 558: }
1.48 schwarze 559: break;
1.1 kristaps 560: }
561:
562: assert(n);
1.29 schwarze 563: if ( ! rew_last(m, n))
564: return(0);
565:
566: /*
1.47 schwarze 567: * The current block extends an enclosing block.
568: * Now that the current block ends, close the enclosing block, too.
1.29 schwarze 569: */
1.47 schwarze 570: while (NULL != (n = n->pending)) {
1.29 schwarze 571: if ( ! rew_last(m, n))
572: return(0);
1.47 schwarze 573: if (MDOC_HEAD == n->type &&
574: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.29 schwarze 575: return(0);
576: }
1.54 schwarze 577:
1.29 schwarze 578: return(1);
1.1 kristaps 579: }
580:
1.66 schwarze 581: /*
582: * Allocate a word and check whether it's punctuation or not.
583: * Punctuation consists of those tokens found in mdoc_isdelim().
584: */
585: static int
586: dword(struct mdoc *m, int line,
587: int col, const char *p, enum mdelim d)
588: {
589:
590: if (DELIM_MAX == d)
591: d = mdoc_isdelim(p);
592:
593: if ( ! mdoc_word_alloc(m, line, col, p))
594: return(0);
595:
596: if (DELIM_OPEN == d)
597: m->last->flags |= MDOC_DELIMO;
1.71 schwarze 598:
599: /*
600: * Closing delimiters only suppress the preceding space
601: * when they follow something, not when they start a new
602: * block or element, and not when they follow `No'.
603: *
604: * XXX Explicitly special-casing MDOC_No here feels
605: * like a layering violation. Find a better way
606: * and solve this in the code related to `No'!
607: */
608:
1.67 schwarze 609: else if (DELIM_CLOSE == d && m->last->prev &&
610: m->last->prev->tok != MDOC_No)
1.66 schwarze 611: m->last->flags |= MDOC_DELIMC;
612:
613: return(1);
614: }
1.1 kristaps 615:
616: static int
1.42 schwarze 617: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 618: {
1.42 schwarze 619: int la;
1.36 schwarze 620: enum margserr ac;
1.1 kristaps 621: char *p;
622:
1.42 schwarze 623: if ('\0' == buf[*pos])
1.1 kristaps 624: return(1);
625:
626: for (;;) {
1.42 schwarze 627: la = *pos;
1.68 schwarze 628: ac = mdoc_zargs(m, line, pos, buf, &p);
1.1 kristaps 629:
1.36 schwarze 630: if (ARGS_ERROR == ac)
1.1 kristaps 631: return(0);
1.36 schwarze 632: else if (ARGS_EOLN == ac)
1.1 kristaps 633: break;
1.42 schwarze 634:
1.66 schwarze 635: dword(m, line, la, p, DELIM_MAX);
1.43 schwarze 636:
1.42 schwarze 637: /*
638: * If we encounter end-of-sentence symbols, then trigger
639: * the double-space.
640: *
1.68 schwarze 641: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 642: * the last symbol, such that `. )' will cause the
643: * correct double-spacing. However, (1) groff isn't
644: * smart enough to do this and (2) it would require
645: * knowing which symbols break this behaviour, for
1.68 schwarze 646: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 647: */
1.55 schwarze 648: if (mandoc_eos(p, strlen(p), 0))
1.42 schwarze 649: m->last->flags |= MDOC_EOS;
1.1 kristaps 650: }
651:
652: return(1);
653: }
654:
655:
656: /*
657: * Close out block partial/full explicit.
658: */
659: static int
660: blk_exp_close(MACRO_PROT_ARGS)
661: {
1.47 schwarze 662: struct mdoc_node *body; /* Our own body. */
663: struct mdoc_node *later; /* A sub-block starting later. */
664: struct mdoc_node *n; /* For searching backwards. */
665:
1.37 schwarze 666: int j, lastarg, maxargs, flushed, nl;
1.36 schwarze 667: enum margserr ac;
1.47 schwarze 668: enum mdoct atok, ntok;
1.1 kristaps 669: char *p;
670:
1.37 schwarze 671: nl = MDOC_NEWLINE & m->flags;
672:
1.1 kristaps 673: switch (tok) {
674: case (MDOC_Ec):
675: maxargs = 1;
676: break;
677: default:
678: maxargs = 0;
679: break;
680: }
681:
1.47 schwarze 682: /*
683: * Search backwards for beginnings of blocks,
684: * both of our own and of pending sub-blocks.
685: */
686: atok = rew_alt(tok);
687: body = later = NULL;
688: for (n = m->last; n; n = n->parent) {
689: if (MDOC_VALID & n->flags)
690: continue;
691:
692: /* Remember the start of our own body. */
693: if (MDOC_BODY == n->type && atok == n->tok) {
1.54 schwarze 694: if (ENDBODY_NOT == n->end)
1.47 schwarze 695: body = n;
696: continue;
697: }
698:
1.51 schwarze 699: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.47 schwarze 700: continue;
701: if (atok == n->tok) {
702: assert(body);
703:
704: /*
705: * Found the start of our own block.
706: * When there is no pending sub block,
707: * just proceed to closing out.
708: */
709: if (NULL == later)
710: break;
711:
712: /*
713: * When there is a pending sub block,
714: * postpone closing out the current block
715: * until the rew_sub() closing out the sub-block.
716: */
1.59 schwarze 717: make_pending(later, tok, m, line, ppos);
1.47 schwarze 718:
719: /*
720: * Mark the place where the formatting - but not
721: * the scope - of the current block ends.
722: */
723: if ( ! mdoc_endbody_alloc(m, line, ppos,
724: atok, body, ENDBODY_SPACE))
725: return(0);
726: break;
727: }
728:
729: /*
730: * When finding an open sub block, remember the last
731: * open explicit block, or, in case there are only
732: * implicit ones, the first open implicit block.
733: */
734: if (later &&
735: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
736: continue;
1.60 schwarze 737: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags)
1.47 schwarze 738: later = n;
739: }
740:
1.1 kristaps 741: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.44 schwarze 742: /* FIXME: do this in validate */
1.14 schwarze 743: if (buf[*pos])
1.65 schwarze 744: mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST);
1.14 schwarze 745:
1.22 schwarze 746: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.14 schwarze 747: return(0);
1.22 schwarze 748: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 749: }
750:
1.22 schwarze 751: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 752: return(0);
753:
1.47 schwarze 754: if (NULL == later && maxargs > 0)
1.22 schwarze 755: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 756: return(0);
757:
1.20 schwarze 758: for (flushed = j = 0; ; j++) {
1.1 kristaps 759: lastarg = *pos;
760:
761: if (j == maxargs && ! flushed) {
1.22 schwarze 762: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 763: return(0);
764: flushed = 1;
765: }
766:
1.36 schwarze 767: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 768:
1.36 schwarze 769: if (ARGS_ERROR == ac)
1.1 kristaps 770: return(0);
1.36 schwarze 771: if (ARGS_PUNCT == ac)
1.1 kristaps 772: break;
1.36 schwarze 773: if (ARGS_EOLN == ac)
1.1 kristaps 774: break;
775:
1.36 schwarze 776: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
777:
778: if (MDOC_MAX == ntok) {
1.66 schwarze 779: if ( ! dword(m, line, lastarg, p, DELIM_MAX))
1.1 kristaps 780: return(0);
1.36 schwarze 781: continue;
782: }
1.1 kristaps 783:
1.36 schwarze 784: if ( ! flushed) {
785: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
786: return(0);
787: flushed = 1;
788: }
789: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 790: return(0);
1.36 schwarze 791: break;
1.1 kristaps 792: }
793:
1.22 schwarze 794: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 795: return(0);
796:
1.37 schwarze 797: if ( ! nl)
1.1 kristaps 798: return(1);
1.22 schwarze 799: return(append_delims(m, line, pos, buf));
1.1 kristaps 800: }
801:
802:
803: static int
804: in_line(MACRO_PROT_ARGS)
805: {
1.45 schwarze 806: int la, scope, cnt, nc, nl;
1.36 schwarze 807: enum margverr av;
808: enum mdoct ntok;
809: enum margserr ac;
1.40 schwarze 810: enum mdelim d;
1.36 schwarze 811: struct mdoc_arg *arg;
812: char *p;
1.1 kristaps 813:
1.37 schwarze 814: nl = MDOC_NEWLINE & m->flags;
815:
1.1 kristaps 816: /*
817: * Whether we allow ignored elements (those without content,
818: * usually because of reserved words) to squeak by.
819: */
1.32 schwarze 820:
1.1 kristaps 821: switch (tok) {
1.19 schwarze 822: case (MDOC_An):
823: /* FALLTHROUGH */
824: case (MDOC_Ar):
1.1 kristaps 825: /* FALLTHROUGH */
826: case (MDOC_Fl):
827: /* FALLTHROUGH */
1.60 schwarze 828: case (MDOC_Mt):
1.18 schwarze 829: /* FALLTHROUGH */
1.19 schwarze 830: case (MDOC_Nm):
831: /* FALLTHROUGH */
1.18 schwarze 832: case (MDOC_Pa):
1.1 kristaps 833: nc = 1;
834: break;
835: default:
836: nc = 0;
837: break;
838: }
839:
1.20 schwarze 840: for (arg = NULL;; ) {
1.1 kristaps 841: la = *pos;
1.36 schwarze 842: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 843:
1.36 schwarze 844: if (ARGV_WORD == av) {
1.1 kristaps 845: *pos = la;
846: break;
847: }
1.36 schwarze 848: if (ARGV_EOLN == av)
1.1 kristaps 849: break;
1.36 schwarze 850: if (ARGV_ARG == av)
1.1 kristaps 851: continue;
852:
853: mdoc_argv_free(arg);
854: return(0);
855: }
856:
1.45 schwarze 857: for (cnt = scope = 0;; ) {
1.1 kristaps 858: la = *pos;
1.36 schwarze 859: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 860:
1.36 schwarze 861: if (ARGS_ERROR == ac)
1.1 kristaps 862: return(0);
1.36 schwarze 863: if (ARGS_EOLN == ac)
1.1 kristaps 864: break;
1.36 schwarze 865: if (ARGS_PUNCT == ac)
1.1 kristaps 866: break;
867:
1.36 schwarze 868: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 869:
870: /*
871: * In this case, we've located a submacro and must
872: * execute it. Close out scope, if open. If no
873: * elements have been generated, either create one (nc)
874: * or raise a warning.
875: */
876:
1.36 schwarze 877: if (MDOC_MAX != ntok) {
1.45 schwarze 878: if (scope && ! rew_elem(m, tok))
1.1 kristaps 879: return(0);
880: if (nc && 0 == cnt) {
1.22 schwarze 881: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 882: return(0);
1.22 schwarze 883: if ( ! rew_last(m, m->last))
1.3 schwarze 884: return(0);
1.1 kristaps 885: } else if ( ! nc && 0 == cnt) {
886: mdoc_argv_free(arg);
1.65 schwarze 887: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
1.1 kristaps 888: }
1.65 schwarze 889:
1.36 schwarze 890: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 891: return(0);
1.37 schwarze 892: if ( ! nl)
1.1 kristaps 893: return(1);
1.22 schwarze 894: return(append_delims(m, line, pos, buf));
1.21 schwarze 895: }
1.1 kristaps 896:
897: /*
898: * Non-quote-enclosed punctuation. Set up our scope, if
899: * a word; rewind the scope, if a delimiter; then append
900: * the word.
901: */
902:
1.66 schwarze 903: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 904:
1.45 schwarze 905: if (DELIM_NONE != d) {
906: /*
907: * If we encounter closing punctuation, no word
908: * has been omitted, no scope is open, and we're
909: * allowed to have an empty element, then start
910: * a new scope. `Ar', `Fl', and `Li', only do
911: * this once per invocation. There may be more
912: * of these (all of them?).
913: */
914: if (0 == cnt && (nc || MDOC_Li == tok) &&
915: DELIM_CLOSE == d && ! scope) {
916: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
917: return(0);
918: if (MDOC_Ar == tok || MDOC_Li == tok ||
919: MDOC_Fl == tok)
920: cnt++;
921: scope = 1;
922: }
923: /*
924: * Close out our scope, if one is open, before
925: * any punctuation.
926: */
927: if (scope && ! rew_elem(m, tok))
1.1 kristaps 928: return(0);
1.45 schwarze 929: scope = 0;
930: } else if ( ! scope) {
1.22 schwarze 931: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 932: return(0);
1.45 schwarze 933: scope = 1;
1.1 kristaps 934: }
935:
1.40 schwarze 936: if (DELIM_NONE == d)
1.1 kristaps 937: cnt++;
1.66 schwarze 938:
939: if ( ! dword(m, line, la, p, d))
1.1 kristaps 940: return(0);
1.27 schwarze 941:
942: /*
943: * `Fl' macros have their scope re-opened with each new
944: * word so that the `-' can be added to each one without
945: * having to parse out spaces.
946: */
1.45 schwarze 947: if (scope && MDOC_Fl == tok) {
1.27 schwarze 948: if ( ! rew_elem(m, tok))
949: return(0);
1.45 schwarze 950: scope = 0;
1.27 schwarze 951: }
1.1 kristaps 952: }
953:
1.45 schwarze 954: if (scope && ! rew_elem(m, tok))
1.1 kristaps 955: return(0);
956:
957: /*
958: * If no elements have been collected and we're allowed to have
959: * empties (nc), open a scope and close it out. Otherwise,
960: * raise a warning.
961: */
1.32 schwarze 962:
1.1 kristaps 963: if (nc && 0 == cnt) {
1.22 schwarze 964: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 965: return(0);
1.22 schwarze 966: if ( ! rew_last(m, m->last))
1.3 schwarze 967: return(0);
968: } else if ( ! nc && 0 == cnt) {
1.1 kristaps 969: mdoc_argv_free(arg);
1.65 schwarze 970: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
1.1 kristaps 971: }
972:
1.37 schwarze 973: if ( ! nl)
1.1 kristaps 974: return(1);
1.22 schwarze 975: return(append_delims(m, line, pos, buf));
1.1 kristaps 976: }
977:
978:
979: static int
980: blk_full(MACRO_PROT_ARGS)
981: {
1.73 schwarze 982: int la, nl, nparsed;
1.1 kristaps 983: struct mdoc_arg *arg;
1.32 schwarze 984: struct mdoc_node *head; /* save of head macro */
1.34 schwarze 985: struct mdoc_node *body; /* save of body macro */
1.32 schwarze 986: struct mdoc_node *n;
1.46 schwarze 987: enum mdoc_type mtt;
1.36 schwarze 988: enum mdoct ntok;
1.37 schwarze 989: enum margserr ac, lac;
1.36 schwarze 990: enum margverr av;
1.1 kristaps 991: char *p;
992:
1.43 schwarze 993: nl = MDOC_NEWLINE & m->flags;
994:
1.32 schwarze 995: /* Close out prior implicit scope. */
1.12 schwarze 996:
1.1 kristaps 997: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.22 schwarze 998: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 999: return(0);
1.22 schwarze 1000: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1001: return(0);
1002: }
1003:
1.32 schwarze 1004: /*
1.68 schwarze 1005: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 1006: * macro openings. Implicit ones first close out prior scope
1007: * (seen above). Delay opening the head until necessary to
1008: * allow leading punctuation to print. Special consideration
1009: * for `It -column', which has phrase-part syntax instead of
1010: * regular child nodes.
1011: */
1012:
1.1 kristaps 1013: for (arg = NULL;; ) {
1.32 schwarze 1014: la = *pos;
1.36 schwarze 1015: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1016:
1.36 schwarze 1017: if (ARGV_WORD == av) {
1.32 schwarze 1018: *pos = la;
1.1 kristaps 1019: break;
1020: }
1021:
1.36 schwarze 1022: if (ARGV_EOLN == av)
1.1 kristaps 1023: break;
1.36 schwarze 1024: if (ARGV_ARG == av)
1.1 kristaps 1025: continue;
1026:
1027: mdoc_argv_free(arg);
1028: return(0);
1029: }
1030:
1.22 schwarze 1031: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1032: return(0);
1033:
1.34 schwarze 1034: head = body = NULL;
1.1 kristaps 1035:
1.32 schwarze 1036: /*
1.73 schwarze 1037: * Exception: Heads of `It' macros in `-diag' lists are not
1038: * parsed, even though `It' macros in general are parsed.
1039: */
1040: nparsed = MDOC_It == tok &&
1041: MDOC_Bl == m->last->parent->tok &&
1042: LIST_diag == m->last->parent->norm->Bl.type;
1043:
1044: /*
1.32 schwarze 1045: * The `Nd' macro has all arguments in its body: it's a hybrid
1046: * of block partial-explicit and full-implicit. Stupid.
1047: */
1.12 schwarze 1048:
1.32 schwarze 1049: if (MDOC_Nd == tok) {
1050: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1051: return(0);
1052: head = m->last;
1.22 schwarze 1053: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.12 schwarze 1054: return(0);
1.22 schwarze 1055: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.12 schwarze 1056: return(0);
1.34 schwarze 1057: body = m->last;
1.12 schwarze 1058: }
1059:
1.37 schwarze 1060: ac = ARGS_ERROR;
1061:
1.41 schwarze 1062: for ( ; ; ) {
1.32 schwarze 1063: la = *pos;
1.46 schwarze 1064: /* Initialise last-phrase-type with ARGS_PEND. */
1065: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.36 schwarze 1066: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.52 schwarze 1067:
1068: if (ARGS_PUNCT == ac)
1069: break;
1.1 kristaps 1070:
1.36 schwarze 1071: if (ARGS_ERROR == ac)
1.1 kristaps 1072: return(0);
1.46 schwarze 1073:
1074: if (ARGS_EOLN == ac) {
1075: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1076: break;
1077: /*
1078: * This is necessary: if the last token on a
1079: * line is a `Ta' or tab, then we'll get
1080: * ARGS_EOLN, so we must be smart enough to
1081: * reopen our scope if the last parse was a
1082: * phrase or partial phrase.
1083: */
1084: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1085: return(0);
1086: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1087: return(0);
1088: body = m->last;
1.1 kristaps 1089: break;
1.41 schwarze 1090: }
1091:
1.46 schwarze 1092: /*
1093: * Emit leading punctuation (i.e., punctuation before
1094: * the MDOC_HEAD) for non-phrase types.
1095: */
1.32 schwarze 1096:
1.37 schwarze 1097: if (NULL == head &&
1.46 schwarze 1098: ARGS_PEND != ac &&
1.37 schwarze 1099: ARGS_PHRASE != ac &&
1.36 schwarze 1100: ARGS_PPHRASE != ac &&
1101: ARGS_QWORD != ac &&
1.66 schwarze 1102: DELIM_OPEN == mdoc_isdelim(p)) {
1103: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.32 schwarze 1104: return(0);
1105: continue;
1106: }
1107:
1.46 schwarze 1108: /* Open a head if one hasn't been opened. */
1.32 schwarze 1109:
1.46 schwarze 1110: if (NULL == head) {
1.32 schwarze 1111: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1112: return(0);
1.29 schwarze 1113: head = m->last;
1.32 schwarze 1114: }
1115:
1.46 schwarze 1116: if (ARGS_PHRASE == ac ||
1117: ARGS_PEND == ac ||
1118: ARGS_PPHRASE == ac) {
1119: /*
1120: * If we haven't opened a body yet, rewind the
1121: * head; if we have, rewind that instead.
1122: */
1123:
1124: mtt = body ? MDOC_BODY : MDOC_HEAD;
1125: if ( ! rew_sub(mtt, m, tok, line, ppos))
1126: return(0);
1127:
1128: /* Then allocate our body context. */
1129:
1130: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1131: return(0);
1132: body = m->last;
1133:
1134: /*
1135: * Process phrases: set whether we're in a
1136: * partial-phrase (this effects line handling)
1137: * then call down into the phrase parser.
1138: */
1139:
1.41 schwarze 1140: if (ARGS_PPHRASE == ac)
1141: m->flags |= MDOC_PPHRASE;
1.46 schwarze 1142: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1143: m->flags |= MDOC_PPHRASE;
1144:
1145: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1146: return(0);
1.46 schwarze 1147:
1.41 schwarze 1148: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1149: continue;
1150: }
1151:
1.73 schwarze 1152: ntok = nparsed || ARGS_QWORD == ac ?
1153: MDOC_MAX : lookup(tok, p);
1.36 schwarze 1154:
1155: if (MDOC_MAX == ntok) {
1.66 schwarze 1156: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1157: return(0);
1.36 schwarze 1158: continue;
1.32 schwarze 1159: }
1.36 schwarze 1160:
1161: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1162: return(0);
1.36 schwarze 1163: break;
1.32 schwarze 1164: }
1.1 kristaps 1165:
1.32 schwarze 1166: if (NULL == head) {
1167: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1168: return(0);
1.32 schwarze 1169: head = m->last;
1.1 kristaps 1170: }
1171:
1.43 schwarze 1172: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1173: return(0);
1.12 schwarze 1174:
1.34 schwarze 1175: /* If we've already opened our body, exit now. */
1.32 schwarze 1176:
1.34 schwarze 1177: if (NULL != body)
1.46 schwarze 1178: goto out;
1.29 schwarze 1179:
1180: /*
1.34 schwarze 1181: * If there is an open (i.e., unvalidated) sub-block requiring
1182: * explicit close-out, postpone switching the current block from
1183: * head to body until the rew_sub() call closing out that
1184: * sub-block.
1.29 schwarze 1185: */
1186: for (n = m->last; n && n != head; n = n->parent) {
1.34 schwarze 1187: if (MDOC_BLOCK == n->type &&
1188: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1189: ! (MDOC_VALID & n->flags)) {
1.29 schwarze 1190: n->pending = head;
1191: return(1);
1192: }
1193: }
1.54 schwarze 1194:
1.32 schwarze 1195: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1196:
1.22 schwarze 1197: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1198: return(0);
1.22 schwarze 1199: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1200: return(0);
1201:
1.46 schwarze 1202: out:
1203: if ( ! (MDOC_FREECOL & m->flags))
1204: return(1);
1205:
1206: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1207: return(0);
1208: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1209: return(0);
1210:
1211: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1212: return(1);
1213: }
1214:
1215:
1216: static int
1217: blk_part_imp(MACRO_PROT_ARGS)
1218: {
1.43 schwarze 1219: int la, nl;
1.36 schwarze 1220: enum mdoct ntok;
1221: enum margserr ac;
1.1 kristaps 1222: char *p;
1.32 schwarze 1223: struct mdoc_node *blk; /* saved block context */
1224: struct mdoc_node *body; /* saved body context */
1225: struct mdoc_node *n;
1.1 kristaps 1226:
1.43 schwarze 1227: nl = MDOC_NEWLINE & m->flags;
1228:
1.32 schwarze 1229: /*
1230: * A macro that spans to the end of the line. This is generally
1231: * (but not necessarily) called as the first macro. The block
1232: * has a head as the immediate child, which is always empty,
1233: * followed by zero or more opening punctuation nodes, then the
1234: * body (which may be empty, depending on the macro), then zero
1235: * or more closing punctuation nodes.
1236: */
1.22 schwarze 1237:
1238: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1239: return(0);
1.32 schwarze 1240:
1.22 schwarze 1241: blk = m->last;
1.32 schwarze 1242:
1.22 schwarze 1243: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1244: return(0);
1.22 schwarze 1245: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1246: return(0);
1247:
1.32 schwarze 1248: /*
1249: * Open the body scope "on-demand", that is, after we've
1250: * processed all our the leading delimiters (open parenthesis,
1251: * etc.).
1252: */
1.1 kristaps 1253:
1.32 schwarze 1254: for (body = NULL; ; ) {
1.22 schwarze 1255: la = *pos;
1.36 schwarze 1256: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.32 schwarze 1257:
1.36 schwarze 1258: if (ARGS_ERROR == ac)
1.1 kristaps 1259: return(0);
1.36 schwarze 1260: if (ARGS_EOLN == ac)
1.32 schwarze 1261: break;
1.36 schwarze 1262: if (ARGS_PUNCT == ac)
1.1 kristaps 1263: break;
1264:
1.36 schwarze 1265: if (NULL == body && ARGS_QWORD != ac &&
1.66 schwarze 1266: DELIM_OPEN == mdoc_isdelim(p)) {
1267: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.1 kristaps 1268: return(0);
1269: continue;
1270: }
1271:
1.32 schwarze 1272: if (NULL == body) {
1273: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1274: return(0);
1275: body = m->last;
1276: }
1277:
1.36 schwarze 1278: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1279:
1280: if (MDOC_MAX == ntok) {
1.66 schwarze 1281: if ( ! dword(m, line, la, p, DELIM_MAX))
1.32 schwarze 1282: return(0);
1.36 schwarze 1283: continue;
1284: }
1.32 schwarze 1285:
1.36 schwarze 1286: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1287: return(0);
1.36 schwarze 1288: break;
1.32 schwarze 1289: }
1290:
1291: /* Clean-ups to leave in a consistent state. */
1292:
1293: if (NULL == body) {
1294: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1295: return(0);
1.32 schwarze 1296: body = m->last;
1.39 schwarze 1297: }
1298:
1299: for (n = body->child; n && n->next; n = n->next)
1300: /* Do nothing. */ ;
1301:
1302: /*
1303: * End of sentence spacing: if the last node is a text node and
1304: * has a trailing period, then mark it as being end-of-sentence.
1305: */
1306:
1307: if (n && MDOC_TEXT == n->type && n->string)
1.55 schwarze 1308: if (mandoc_eos(n->string, strlen(n->string), 1))
1.39 schwarze 1309: n->flags |= MDOC_EOS;
1310:
1.68 schwarze 1311: /* Up-propagate the end-of-space flag. */
1.39 schwarze 1312:
1313: if (n && (MDOC_EOS & n->flags)) {
1314: body->flags |= MDOC_EOS;
1315: body->parent->flags |= MDOC_EOS;
1.1 kristaps 1316: }
1317:
1.47 schwarze 1318: /*
1319: * If there is an open sub-block requiring explicit close-out,
1320: * postpone closing out the current block
1321: * until the rew_sub() call closing out the sub-block.
1322: */
1323: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1324: if (MDOC_BLOCK == n->type &&
1325: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1326: ! (MDOC_VALID & n->flags)) {
1.59 schwarze 1327: make_pending(n, tok, m, line, ppos);
1.47 schwarze 1328: if ( ! mdoc_endbody_alloc(m, line, ppos,
1329: tok, body, ENDBODY_NOSPACE))
1330: return(0);
1331: return(1);
1332: }
1333: }
1334:
1.22 schwarze 1335: /*
1336: * If we can't rewind to our body, then our scope has already
1337: * been closed by another macro (like `Oc' closing `Op'). This
1338: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.34 schwarze 1339: * crufty use of `Op' breakage.
1.1 kristaps 1340: */
1.65 schwarze 1341: if (n != body)
1.66 schwarze 1342: mandoc_vmsg(MANDOCERR_SCOPENEST, m->parse, line, ppos,
1.65 schwarze 1343: "%s broken", mdoc_macronames[tok]);
1.32 schwarze 1344:
1.47 schwarze 1345: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 schwarze 1346: return(0);
1.1 kristaps 1347:
1.22 schwarze 1348: /* Standard appending of delimiters. */
1.1 kristaps 1349:
1.43 schwarze 1350: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1351: return(0);
1352:
1.22 schwarze 1353: /* Rewind scope, if applicable. */
1.1 kristaps 1354:
1.47 schwarze 1355: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1356: return(0);
1.74 ! schwarze 1357:
! 1358: /* Move trailing .Ns out of scope. */
! 1359:
! 1360: for (n = body->child; n && n->next; n = n->next)
! 1361: /* Do nothing. */ ;
! 1362: if (n && MDOC_Ns == n->tok)
! 1363: mdoc_node_relink(m, n);
1.1 kristaps 1364:
1365: return(1);
1366: }
1367:
1368:
1369: static int
1370: blk_part_exp(MACRO_PROT_ARGS)
1371: {
1.37 schwarze 1372: int la, nl;
1.36 schwarze 1373: enum margserr ac;
1.32 schwarze 1374: struct mdoc_node *head; /* keep track of head */
1375: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1376: char *p;
1.36 schwarze 1377: enum mdoct ntok;
1.1 kristaps 1378:
1.37 schwarze 1379: nl = MDOC_NEWLINE & m->flags;
1380:
1.32 schwarze 1381: /*
1382: * The opening of an explicit macro having zero or more leading
1383: * punctuation nodes; a head with optional single element (the
1384: * case of `Eo'); and a body that may be empty.
1385: */
1.22 schwarze 1386:
1387: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1388: return(0);
1.22 schwarze 1389:
1.32 schwarze 1390: for (head = body = NULL; ; ) {
1.22 schwarze 1391: la = *pos;
1.36 schwarze 1392: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1393:
1.36 schwarze 1394: if (ARGS_ERROR == ac)
1.1 kristaps 1395: return(0);
1.36 schwarze 1396: if (ARGS_PUNCT == ac)
1.1 kristaps 1397: break;
1.36 schwarze 1398: if (ARGS_EOLN == ac)
1.1 kristaps 1399: break;
1400:
1.32 schwarze 1401: /* Flush out leading punctuation. */
1402:
1.36 schwarze 1403: if (NULL == head && ARGS_QWORD != ac &&
1.66 schwarze 1404: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1405: assert(NULL == body);
1.66 schwarze 1406: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.32 schwarze 1407: return(0);
1408: continue;
1409: }
1410:
1411: if (NULL == head) {
1412: assert(NULL == body);
1413: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1414: return(0);
1.32 schwarze 1415: head = m->last;
1.1 kristaps 1416: }
1417:
1.32 schwarze 1418: /*
1419: * `Eo' gobbles any data into the head, but most other
1420: * macros just immediately close out and begin the body.
1421: */
1422:
1423: if (NULL == body) {
1424: assert(head);
1425: /* No check whether it's a macro! */
1426: if (MDOC_Eo == tok)
1.66 schwarze 1427: if ( ! dword(m, line, la, p, DELIM_MAX))
1.32 schwarze 1428: return(0);
1429:
1.22 schwarze 1430: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1431: return(0);
1.22 schwarze 1432: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1433: return(0);
1.32 schwarze 1434: body = m->last;
1435:
1436: if (MDOC_Eo == tok)
1437: continue;
1438: }
1439:
1440: assert(NULL != head && NULL != body);
1441:
1.36 schwarze 1442: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1443:
1444: if (MDOC_MAX == ntok) {
1.66 schwarze 1445: if ( ! dword(m, line, la, p, DELIM_MAX))
1.32 schwarze 1446: return(0);
1.36 schwarze 1447: continue;
1.1 kristaps 1448: }
1.32 schwarze 1449:
1.36 schwarze 1450: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1451: return(0);
1.36 schwarze 1452: break;
1.1 kristaps 1453: }
1454:
1.32 schwarze 1455: /* Clean-up to leave in a consistent state. */
1456:
1.70 schwarze 1457: if (NULL == head)
1.32 schwarze 1458: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1459: return(0);
1.22 schwarze 1460:
1.32 schwarze 1461: if (NULL == body) {
1.22 schwarze 1462: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1463: return(0);
1.22 schwarze 1464: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1465: return(0);
1466: }
1467:
1.22 schwarze 1468: /* Standard appending of delimiters. */
1469:
1.37 schwarze 1470: if ( ! nl)
1.1 kristaps 1471: return(1);
1.22 schwarze 1472: return(append_delims(m, line, pos, buf));
1.1 kristaps 1473: }
1474:
1475:
1.37 schwarze 1476: /* ARGSUSED */
1.1 kristaps 1477: static int
1478: in_line_argn(MACRO_PROT_ARGS)
1479: {
1.37 schwarze 1480: int la, flushed, j, maxargs, nl;
1.36 schwarze 1481: enum margserr ac;
1482: enum margverr av;
1483: struct mdoc_arg *arg;
1484: char *p;
1485: enum mdoct ntok;
1.1 kristaps 1486:
1.37 schwarze 1487: nl = MDOC_NEWLINE & m->flags;
1488:
1.32 schwarze 1489: /*
1490: * A line macro that has a fixed number of arguments (maxargs).
1491: * Only open the scope once the first non-leading-punctuation is
1492: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1493: * keep it open until the maximum number of arguments are
1494: * exhausted.
1495: */
1.1 kristaps 1496:
1497: switch (tok) {
1498: case (MDOC_Ap):
1499: /* FALLTHROUGH */
1500: case (MDOC_No):
1501: /* FALLTHROUGH */
1502: case (MDOC_Ns):
1503: /* FALLTHROUGH */
1504: case (MDOC_Ux):
1505: maxargs = 0;
1506: break;
1.64 schwarze 1507: case (MDOC_Bx):
1508: /* FALLTHROUGH */
1.28 schwarze 1509: case (MDOC_Xr):
1510: maxargs = 2;
1511: break;
1.1 kristaps 1512: default:
1513: maxargs = 1;
1514: break;
1515: }
1516:
1.32 schwarze 1517: for (arg = NULL; ; ) {
1.22 schwarze 1518: la = *pos;
1.36 schwarze 1519: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1520:
1.36 schwarze 1521: if (ARGV_WORD == av) {
1.22 schwarze 1522: *pos = la;
1.1 kristaps 1523: break;
1524: }
1525:
1.36 schwarze 1526: if (ARGV_EOLN == av)
1.1 kristaps 1527: break;
1.36 schwarze 1528: if (ARGV_ARG == av)
1.1 kristaps 1529: continue;
1530:
1531: mdoc_argv_free(arg);
1532: return(0);
1533: }
1534:
1.32 schwarze 1535: for (flushed = j = 0; ; ) {
1.22 schwarze 1536: la = *pos;
1.36 schwarze 1537: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1538:
1.36 schwarze 1539: if (ARGS_ERROR == ac)
1.1 kristaps 1540: return(0);
1.36 schwarze 1541: if (ARGS_PUNCT == ac)
1.1 kristaps 1542: break;
1.36 schwarze 1543: if (ARGS_EOLN == ac)
1.1 kristaps 1544: break;
1545:
1.32 schwarze 1546: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.66 schwarze 1547: ARGS_QWORD != ac && 0 == j &&
1548: DELIM_OPEN == mdoc_isdelim(p)) {
1549: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.32 schwarze 1550: return(0);
1551: continue;
1.40 schwarze 1552: } else if (0 == j)
1.32 schwarze 1553: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1554: return(0);
1555:
1556: if (j == maxargs && ! flushed) {
1557: if ( ! rew_elem(m, tok))
1558: return(0);
1559: flushed = 1;
1560: }
1561:
1.36 schwarze 1562: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1563:
1564: if (MDOC_MAX != ntok) {
1.22 schwarze 1565: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1566: return(0);
1567: flushed = 1;
1.36 schwarze 1568: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1569: return(0);
1.32 schwarze 1570: j++;
1.1 kristaps 1571: break;
1572: }
1573:
1574: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1575: ARGS_QWORD != ac &&
1.40 schwarze 1576: ! flushed &&
1.66 schwarze 1577: DELIM_NONE != mdoc_isdelim(p)) {
1.22 schwarze 1578: if ( ! rew_elem(m, tok))
1.1 kristaps 1579: return(0);
1580: flushed = 1;
1.28 schwarze 1581: }
1582:
1.66 schwarze 1583: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1584: return(0);
1.32 schwarze 1585: j++;
1.1 kristaps 1586: }
1587:
1.32 schwarze 1588: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1589: return(0);
1590:
1591: /* Close out in a consistent state. */
1.22 schwarze 1592:
1593: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1594: return(0);
1.37 schwarze 1595: if ( ! nl)
1.1 kristaps 1596: return(1);
1.22 schwarze 1597: return(append_delims(m, line, pos, buf));
1.1 kristaps 1598: }
1599:
1600:
1601: static int
1602: in_line_eoln(MACRO_PROT_ARGS)
1603: {
1.36 schwarze 1604: int la;
1605: enum margserr ac;
1606: enum margverr av;
1607: struct mdoc_arg *arg;
1608: char *p;
1609: enum mdoct ntok;
1.1 kristaps 1610:
1611: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1612:
1.53 schwarze 1613: if (tok == MDOC_Pp)
1614: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1615:
1.22 schwarze 1616: /* Parse macro arguments. */
1.1 kristaps 1617:
1.22 schwarze 1618: for (arg = NULL; ; ) {
1.1 kristaps 1619: la = *pos;
1.36 schwarze 1620: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1621:
1.36 schwarze 1622: if (ARGV_WORD == av) {
1.1 kristaps 1623: *pos = la;
1624: break;
1625: }
1.36 schwarze 1626: if (ARGV_EOLN == av)
1.1 kristaps 1627: break;
1.36 schwarze 1628: if (ARGV_ARG == av)
1.1 kristaps 1629: continue;
1630:
1631: mdoc_argv_free(arg);
1632: return(0);
1633: }
1634:
1.22 schwarze 1635: /* Open element scope. */
1636:
1637: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1638: return(0);
1639:
1.22 schwarze 1640: /* Parse argument terms. */
1.1 kristaps 1641:
1642: for (;;) {
1643: la = *pos;
1.36 schwarze 1644: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1645:
1.36 schwarze 1646: if (ARGS_ERROR == ac)
1.1 kristaps 1647: return(0);
1.36 schwarze 1648: if (ARGS_EOLN == ac)
1.1 kristaps 1649: break;
1650:
1.36 schwarze 1651: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1652:
1.36 schwarze 1653: if (MDOC_MAX == ntok) {
1.66 schwarze 1654: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1655: return(0);
1.36 schwarze 1656: continue;
1657: }
1.1 kristaps 1658:
1.36 schwarze 1659: if ( ! rew_elem(m, tok))
1.1 kristaps 1660: return(0);
1.36 schwarze 1661: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1662: }
1663:
1.22 schwarze 1664: /* Close out (no delimiters). */
1665:
1666: return(rew_elem(m, tok));
1.28 schwarze 1667: }
1668:
1669:
1670: /* ARGSUSED */
1671: static int
1672: ctx_synopsis(MACRO_PROT_ARGS)
1673: {
1.37 schwarze 1674: int nl;
1675:
1676: nl = MDOC_NEWLINE & m->flags;
1.28 schwarze 1677:
1678: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.53 schwarze 1679: if ( ! (MDOC_SYNOPSIS & m->flags))
1.28 schwarze 1680: return(in_line(m, tok, line, ppos, pos, buf));
1681:
1682: /* If we're a nested call, same place. */
1.37 schwarze 1683: if ( ! nl)
1.28 schwarze 1684: return(in_line(m, tok, line, ppos, pos, buf));
1685:
1686: /*
1687: * XXX: this will open a block scope; however, if later we end
1688: * up formatting the block scope, then child nodes will inherit
1689: * the formatting. Be careful.
1690: */
1.51 schwarze 1691: if (MDOC_Nm == tok)
1692: return(blk_full(m, tok, line, ppos, pos, buf));
1693: assert(MDOC_Vt == tok);
1.28 schwarze 1694: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.1 kristaps 1695: }
1696:
1697:
1698: /* ARGSUSED */
1699: static int
1700: obsolete(MACRO_PROT_ARGS)
1701: {
1702:
1.65 schwarze 1703: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS);
1704: return(1);
1.1 kristaps 1705: }
1706:
1707:
1.17 schwarze 1708: /*
1709: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1710: * They're unusual because they're basically free-form text until a
1711: * macro is encountered.
1712: */
1.1 kristaps 1713: static int
1.46 schwarze 1714: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1715: {
1.36 schwarze 1716: int la, pos;
1.46 schwarze 1717: enum margserr ac;
1.36 schwarze 1718: enum mdoct ntok;
1719: char *p;
1.1 kristaps 1720:
1.17 schwarze 1721: for (pos = ppos; ; ) {
1722: la = pos;
1.1 kristaps 1723:
1.68 schwarze 1724: ac = mdoc_zargs(m, line, &pos, buf, &p);
1.1 kristaps 1725:
1.46 schwarze 1726: if (ARGS_ERROR == ac)
1.17 schwarze 1727: return(0);
1.46 schwarze 1728: if (ARGS_EOLN == ac)
1.17 schwarze 1729: break;
1.1 kristaps 1730:
1.46 schwarze 1731: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1732:
1.36 schwarze 1733: if (MDOC_MAX == ntok) {
1.66 schwarze 1734: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1735: return(0);
1.36 schwarze 1736: continue;
1737: }
1.1 kristaps 1738:
1.36 schwarze 1739: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1740: return(0);
1.36 schwarze 1741: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1742: }
1743:
1744: return(1);
1745: }
1.17 schwarze 1746:
1747:
1.46 schwarze 1748: /* ARGSUSED */
1749: static int
1750: phrase_ta(MACRO_PROT_ARGS)
1751: {
1752: int la;
1753: enum mdoct ntok;
1754: enum margserr ac;
1755: char *p;
1756:
1757: /*
1758: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1759: * it should simply error out with ARGSLOST.
1760: */
1761:
1762: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1763: return(0);
1764: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1765: return(0);
1766:
1767: for (;;) {
1768: la = *pos;
1.68 schwarze 1769: ac = mdoc_zargs(m, line, pos, buf, &p);
1.46 schwarze 1770:
1771: if (ARGS_ERROR == ac)
1772: return(0);
1773: if (ARGS_EOLN == ac)
1774: break;
1775:
1776: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1777:
1778: if (MDOC_MAX == ntok) {
1.66 schwarze 1779: if ( ! dword(m, line, la, p, DELIM_MAX))
1.46 schwarze 1780: return(0);
1781: continue;
1782: }
1783:
1784: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1785: return(0);
1786: return(append_delims(m, line, pos, buf));
1787: }
1788:
1789: return(1);
1790: }
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