Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.66
1.66 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.65 2011/04/21 22:59:54 schwarze Exp $ */
1.1 kristaps 2: /*
1.64 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.54 schwarze 4: * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.2 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
18: #include <assert.h>
19: #include <ctype.h>
20: #include <stdlib.h>
21: #include <stdio.h>
22: #include <string.h>
1.26 schwarze 23: #include <time.h>
1.1 kristaps 24:
1.66 ! 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 */
73: { blk_full, 0 }, /* Sh */
74: { blk_full, 0 }, /* 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: {
1.24 schwarze 227: /* FIXME: make -diag lists be un-PARSED. */
1.21 schwarze 228:
229: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
230: return(MDOC_MAX);
1.24 schwarze 231: return(lookup_raw(p));
1.21 schwarze 232: }
233:
234:
1.22 schwarze 235: /*
236: * Lookup a macro following the initial line macro.
237: */
1.36 schwarze 238: static enum mdoct
1.24 schwarze 239: lookup_raw(const char *p)
1.1 kristaps 240: {
1.36 schwarze 241: enum mdoct res;
1.1 kristaps 242:
1.24 schwarze 243: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.21 schwarze 244: return(MDOC_MAX);
245: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 246: return(res);
247: return(MDOC_MAX);
248: }
249:
250:
251: static int
1.22 schwarze 252: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 253: {
1.63 schwarze 254: struct mdoc_node *n, *np;
1.1 kristaps 255:
256: assert(to);
257: mdoc->next = MDOC_NEXT_SIBLING;
258:
259: /* LINTED */
260: while (mdoc->last != to) {
1.63 schwarze 261: /*
262: * Save the parent here, because we may delete the
263: * m->last node in the post-validation phase and reset
264: * it to m->last->parent, causing a step in the closing
265: * out to be lost.
266: */
267: np = mdoc->last->parent;
1.1 kristaps 268: if ( ! mdoc_valid_post(mdoc))
269: return(0);
1.61 schwarze 270: n = mdoc->last;
1.63 schwarze 271: mdoc->last = np;
1.1 kristaps 272: assert(mdoc->last);
1.61 schwarze 273: mdoc->last->last = n;
1.1 kristaps 274: }
275:
1.60 schwarze 276: return(mdoc_valid_post(mdoc));
1.1 kristaps 277: }
278:
279:
1.22 schwarze 280: /*
1.48 schwarze 281: * For a block closing macro, return the corresponding opening one.
282: * Otherwise, return the macro itself.
1.22 schwarze 283: */
1.34 schwarze 284: static enum mdoct
285: rew_alt(enum mdoct tok)
1.1 kristaps 286: {
287: switch (tok) {
288: case (MDOC_Ac):
289: return(MDOC_Ao);
290: case (MDOC_Bc):
291: return(MDOC_Bo);
292: case (MDOC_Brc):
293: return(MDOC_Bro);
294: case (MDOC_Dc):
295: return(MDOC_Do);
296: case (MDOC_Ec):
297: return(MDOC_Eo);
298: case (MDOC_Ed):
299: return(MDOC_Bd);
300: case (MDOC_Ef):
301: return(MDOC_Bf);
302: case (MDOC_Ek):
303: return(MDOC_Bk);
304: case (MDOC_El):
305: return(MDOC_Bl);
306: case (MDOC_Fc):
307: return(MDOC_Fo);
308: case (MDOC_Oc):
309: return(MDOC_Oo);
310: case (MDOC_Pc):
311: return(MDOC_Po);
312: case (MDOC_Qc):
313: return(MDOC_Qo);
314: case (MDOC_Re):
315: return(MDOC_Rs);
316: case (MDOC_Sc):
317: return(MDOC_So);
318: case (MDOC_Xc):
319: return(MDOC_Xo);
320: default:
1.48 schwarze 321: return(tok);
1.1 kristaps 322: }
323: /* NOTREACHED */
324: }
325:
326:
1.48 schwarze 327: /*
328: * Rewinding to tok, how do we have to handle *p?
329: * REWIND_NONE: *p would delimit tok, but no tok scope is open
330: * inside *p, so there is no need to rewind anything at all.
331: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
332: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.59 schwarze 333: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.48 schwarze 334: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
335: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 336: */
1.35 schwarze 337: static enum rew
1.34 schwarze 338: rew_dohalt(enum mdoct tok, enum mdoc_type type,
339: const struct mdoc_node *p)
1.1 kristaps 340: {
341:
1.50 schwarze 342: /*
343: * No matching token, no delimiting block, no broken block.
344: * This can happen when full implicit macros are called for
345: * the first time but try to rewind their previous
346: * instance anyway.
347: */
1.1 kristaps 348: if (MDOC_ROOT == p->type)
1.48 schwarze 349: return(MDOC_BLOCK == type &&
350: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
351: REWIND_ERROR : REWIND_NONE);
1.50 schwarze 352:
353: /*
354: * When starting to rewind, skip plain text
355: * and nodes that have already been rewound.
356: */
1.48 schwarze 357: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
358: return(REWIND_MORE);
359:
1.50 schwarze 360: /*
361: * The easiest case: Found a matching token.
362: * This applies to both blocks and elements.
363: */
1.48 schwarze 364: tok = rew_alt(tok);
365: if (tok == p->tok)
366: return(p->end ? REWIND_NONE :
367: type == p->type ? REWIND_THIS : REWIND_MORE);
368:
1.50 schwarze 369: /*
370: * While elements do require rewinding for themselves,
371: * they never affect rewinding of other nodes.
372: */
1.48 schwarze 373: if (MDOC_ELEM == p->type)
374: return(REWIND_MORE);
1.1 kristaps 375:
1.50 schwarze 376: /*
377: * Blocks delimited by our target token get REWIND_MORE.
378: * Blocks delimiting our target token get REWIND_NONE.
379: */
1.1 kristaps 380: switch (tok) {
1.48 schwarze 381: case (MDOC_Bl):
382: if (MDOC_It == p->tok)
383: return(REWIND_MORE);
1.1 kristaps 384: break;
385: case (MDOC_It):
386: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.48 schwarze 387: return(REWIND_NONE);
1.1 kristaps 388: break;
1.48 schwarze 389: /*
390: * XXX Badly nested block handling still fails badly
391: * when one block is breaking two blocks of the same type.
392: * This is an incomplete and extremely ugly workaround,
393: * required to let the OpenBSD tree build.
394: */
395: case (MDOC_Oo):
396: if (MDOC_Op == p->tok)
397: return(REWIND_MORE);
1.1 kristaps 398: break;
1.51 schwarze 399: case (MDOC_Nm):
400: return(REWIND_NONE);
1.12 schwarze 401: case (MDOC_Nd):
402: /* FALLTHROUGH */
1.1 kristaps 403: case (MDOC_Ss):
404: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.48 schwarze 405: return(REWIND_NONE);
1.1 kristaps 406: /* FALLTHROUGH */
407: case (MDOC_Sh):
1.48 schwarze 408: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
409: MDOC_Sh == p->tok)
410: return(REWIND_MORE);
1.1 kristaps 411: break;
412: default:
413: break;
414: }
415:
1.50 schwarze 416: /*
417: * Default block rewinding rules.
1.51 schwarze 418: * In particular, always skip block end markers,
419: * and let all blocks rewind Nm children.
1.50 schwarze 420: */
1.54 schwarze 421: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
1.51 schwarze 422: (MDOC_BLOCK == p->type &&
1.50 schwarze 423: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
424: return(REWIND_MORE);
425:
426: /*
1.59 schwarze 427: * By default, closing out full blocks
428: * forces closing of broken explicit blocks,
429: * while closing out partial blocks
430: * allows delayed rewinding by default.
1.50 schwarze 431: */
1.59 schwarze 432: return (&blk_full == mdoc_macros[tok].fp ?
433: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 434: }
435:
436:
437: static int
1.34 schwarze 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:
1.47 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:
1.48 schwarze 483: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.47 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;
1.66 ! schwarze 515: mandoc_vmsg(MANDOCERR_SCOPENEST, m->parse, line, ppos,
! 516: "%s breaks %s", mdoc_macronames[tok],
! 517: mdoc_macronames[broken->tok]);
1.47 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?
524: */
525: return(0);
526: }
527:
1.48 schwarze 528:
1.1 kristaps 529: static int
1.22 schwarze 530: rew_sub(enum mdoc_type t, struct mdoc *m,
1.34 schwarze 531: enum mdoct tok, int line, int ppos)
1.1 kristaps 532: {
533: struct mdoc_node *n;
534:
1.48 schwarze 535: n = m->last;
536: while (n) {
537: switch (rew_dohalt(tok, t, n)) {
538: case (REWIND_NONE):
539: return(1);
540: case (REWIND_THIS):
541: break;
1.59 schwarze 542: case (REWIND_FORCE):
1.66 ! schwarze 543: mandoc_vmsg(MANDOCERR_SCOPEBROKEN, m->parse,
! 544: line, ppos, "%s breaks %s",
! 545: mdoc_macronames[tok],
! 546: mdoc_macronames[n->tok]);
1.59 schwarze 547: /* FALLTHROUGH */
1.48 schwarze 548: case (REWIND_MORE):
549: n = n->parent;
550: continue;
551: case (REWIND_LATER):
1.59 schwarze 552: if (make_pending(n, tok, m, line, ppos) ||
553: MDOC_BLOCK != t)
554: return(1);
555: /* FALLTHROUGH */
1.48 schwarze 556: case (REWIND_ERROR):
1.59 schwarze 557: mdoc_pmsg(m, line, ppos, MANDOCERR_NOSCOPE);
558: return(1);
1.22 schwarze 559: }
1.48 schwarze 560: break;
1.1 kristaps 561: }
562:
563: assert(n);
1.29 schwarze 564: if ( ! rew_last(m, n))
565: return(0);
566:
567: /*
1.47 schwarze 568: * The current block extends an enclosing block.
569: * Now that the current block ends, close the enclosing block, too.
1.29 schwarze 570: */
1.47 schwarze 571: while (NULL != (n = n->pending)) {
1.29 schwarze 572: if ( ! rew_last(m, n))
573: return(0);
1.47 schwarze 574: if (MDOC_HEAD == n->type &&
575: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.29 schwarze 576: return(0);
577: }
1.54 schwarze 578:
1.29 schwarze 579: return(1);
1.1 kristaps 580: }
581:
1.66 ! schwarze 582: /*
! 583: * Allocate a word and check whether it's punctuation or not.
! 584: * Punctuation consists of those tokens found in mdoc_isdelim().
! 585: */
! 586: static int
! 587: dword(struct mdoc *m, int line,
! 588: int col, const char *p, enum mdelim d)
! 589: {
! 590:
! 591: if (DELIM_MAX == d)
! 592: d = mdoc_isdelim(p);
! 593:
! 594: if ( ! mdoc_word_alloc(m, line, col, p))
! 595: return(0);
! 596:
! 597: if (DELIM_OPEN == d)
! 598: m->last->flags |= MDOC_DELIMO;
! 599: else if (DELIM_CLOSE == d)
! 600: m->last->flags |= MDOC_DELIMC;
! 601:
! 602: return(1);
! 603: }
1.1 kristaps 604:
605: static int
1.42 schwarze 606: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 607: {
1.42 schwarze 608: int la;
1.36 schwarze 609: enum margserr ac;
1.1 kristaps 610: char *p;
611:
1.42 schwarze 612: if ('\0' == buf[*pos])
1.1 kristaps 613: return(1);
614:
615: for (;;) {
1.42 schwarze 616: la = *pos;
617: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 618:
1.36 schwarze 619: if (ARGS_ERROR == ac)
1.1 kristaps 620: return(0);
1.36 schwarze 621: else if (ARGS_EOLN == ac)
1.1 kristaps 622: break;
1.42 schwarze 623:
1.66 ! schwarze 624: dword(m, line, la, p, DELIM_MAX);
1.43 schwarze 625:
1.42 schwarze 626: /*
627: * If we encounter end-of-sentence symbols, then trigger
628: * the double-space.
629: *
630: * XXX: it's easy to allow this to propogate outward to
631: * the last symbol, such that `. )' will cause the
632: * correct double-spacing. However, (1) groff isn't
633: * smart enough to do this and (2) it would require
634: * knowing which symbols break this behaviour, for
635: * example, `. ;' shouldn't propogate the double-space.
636: */
1.55 schwarze 637: if (mandoc_eos(p, strlen(p), 0))
1.42 schwarze 638: m->last->flags |= MDOC_EOS;
1.1 kristaps 639: }
640:
641: return(1);
642: }
643:
644:
645: /*
646: * Close out block partial/full explicit.
647: */
648: static int
649: blk_exp_close(MACRO_PROT_ARGS)
650: {
1.47 schwarze 651: struct mdoc_node *body; /* Our own body. */
652: struct mdoc_node *later; /* A sub-block starting later. */
653: struct mdoc_node *n; /* For searching backwards. */
654:
1.37 schwarze 655: int j, lastarg, maxargs, flushed, nl;
1.36 schwarze 656: enum margserr ac;
1.47 schwarze 657: enum mdoct atok, ntok;
1.1 kristaps 658: char *p;
659:
1.37 schwarze 660: nl = MDOC_NEWLINE & m->flags;
661:
1.1 kristaps 662: switch (tok) {
663: case (MDOC_Ec):
664: maxargs = 1;
665: break;
666: default:
667: maxargs = 0;
668: break;
669: }
670:
1.47 schwarze 671: /*
672: * Search backwards for beginnings of blocks,
673: * both of our own and of pending sub-blocks.
674: */
675: atok = rew_alt(tok);
676: body = later = NULL;
677: for (n = m->last; n; n = n->parent) {
678: if (MDOC_VALID & n->flags)
679: continue;
680:
681: /* Remember the start of our own body. */
682: if (MDOC_BODY == n->type && atok == n->tok) {
1.54 schwarze 683: if (ENDBODY_NOT == n->end)
1.47 schwarze 684: body = n;
685: continue;
686: }
687:
1.51 schwarze 688: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.47 schwarze 689: continue;
690: if (atok == n->tok) {
691: assert(body);
692:
693: /*
694: * Found the start of our own block.
695: * When there is no pending sub block,
696: * just proceed to closing out.
697: */
698: if (NULL == later)
699: break;
700:
701: /*
702: * When there is a pending sub block,
703: * postpone closing out the current block
704: * until the rew_sub() closing out the sub-block.
705: */
1.59 schwarze 706: make_pending(later, tok, m, line, ppos);
1.47 schwarze 707:
708: /*
709: * Mark the place where the formatting - but not
710: * the scope - of the current block ends.
711: */
712: if ( ! mdoc_endbody_alloc(m, line, ppos,
713: atok, body, ENDBODY_SPACE))
714: return(0);
715: break;
716: }
717:
718: /*
719: * When finding an open sub block, remember the last
720: * open explicit block, or, in case there are only
721: * implicit ones, the first open implicit block.
722: */
723: if (later &&
724: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
725: continue;
1.60 schwarze 726: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags)
1.47 schwarze 727: later = n;
728: }
729:
1.1 kristaps 730: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.44 schwarze 731: /* FIXME: do this in validate */
1.14 schwarze 732: if (buf[*pos])
1.65 schwarze 733: mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST);
1.14 schwarze 734:
1.22 schwarze 735: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.14 schwarze 736: return(0);
1.22 schwarze 737: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 738: }
739:
1.22 schwarze 740: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 741: return(0);
742:
1.47 schwarze 743: if (NULL == later && maxargs > 0)
1.22 schwarze 744: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 745: return(0);
746:
1.20 schwarze 747: for (flushed = j = 0; ; j++) {
1.1 kristaps 748: lastarg = *pos;
749:
750: if (j == maxargs && ! flushed) {
1.22 schwarze 751: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 752: return(0);
753: flushed = 1;
754: }
755:
1.36 schwarze 756: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 757:
1.36 schwarze 758: if (ARGS_ERROR == ac)
1.1 kristaps 759: return(0);
1.36 schwarze 760: if (ARGS_PUNCT == ac)
1.1 kristaps 761: break;
1.36 schwarze 762: if (ARGS_EOLN == ac)
1.1 kristaps 763: break;
764:
1.36 schwarze 765: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
766:
767: if (MDOC_MAX == ntok) {
1.66 ! schwarze 768: if ( ! dword(m, line, lastarg, p, DELIM_MAX))
1.1 kristaps 769: return(0);
1.36 schwarze 770: continue;
771: }
1.1 kristaps 772:
1.36 schwarze 773: if ( ! flushed) {
774: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
775: return(0);
776: flushed = 1;
777: }
778: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 779: return(0);
1.36 schwarze 780: break;
1.1 kristaps 781: }
782:
1.22 schwarze 783: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 784: return(0);
785:
1.37 schwarze 786: if ( ! nl)
1.1 kristaps 787: return(1);
1.22 schwarze 788: return(append_delims(m, line, pos, buf));
1.1 kristaps 789: }
790:
791:
792: static int
793: in_line(MACRO_PROT_ARGS)
794: {
1.45 schwarze 795: int la, scope, cnt, nc, nl;
1.36 schwarze 796: enum margverr av;
797: enum mdoct ntok;
798: enum margserr ac;
1.40 schwarze 799: enum mdelim d;
1.36 schwarze 800: struct mdoc_arg *arg;
801: char *p;
1.1 kristaps 802:
1.37 schwarze 803: nl = MDOC_NEWLINE & m->flags;
804:
1.1 kristaps 805: /*
806: * Whether we allow ignored elements (those without content,
807: * usually because of reserved words) to squeak by.
808: */
1.32 schwarze 809:
1.1 kristaps 810: switch (tok) {
1.19 schwarze 811: case (MDOC_An):
812: /* FALLTHROUGH */
813: case (MDOC_Ar):
1.1 kristaps 814: /* FALLTHROUGH */
815: case (MDOC_Fl):
816: /* FALLTHROUGH */
1.60 schwarze 817: case (MDOC_Mt):
1.18 schwarze 818: /* FALLTHROUGH */
1.19 schwarze 819: case (MDOC_Nm):
820: /* FALLTHROUGH */
1.18 schwarze 821: case (MDOC_Pa):
1.1 kristaps 822: nc = 1;
823: break;
824: default:
825: nc = 0;
826: break;
827: }
828:
1.20 schwarze 829: for (arg = NULL;; ) {
1.1 kristaps 830: la = *pos;
1.36 schwarze 831: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 832:
1.36 schwarze 833: if (ARGV_WORD == av) {
1.1 kristaps 834: *pos = la;
835: break;
836: }
1.36 schwarze 837: if (ARGV_EOLN == av)
1.1 kristaps 838: break;
1.36 schwarze 839: if (ARGV_ARG == av)
1.1 kristaps 840: continue;
841:
842: mdoc_argv_free(arg);
843: return(0);
844: }
845:
1.45 schwarze 846: for (cnt = scope = 0;; ) {
1.1 kristaps 847: la = *pos;
1.36 schwarze 848: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 849:
1.36 schwarze 850: if (ARGS_ERROR == ac)
1.1 kristaps 851: return(0);
1.36 schwarze 852: if (ARGS_EOLN == ac)
1.1 kristaps 853: break;
1.36 schwarze 854: if (ARGS_PUNCT == ac)
1.1 kristaps 855: break;
856:
1.36 schwarze 857: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 858:
859: /*
860: * In this case, we've located a submacro and must
861: * execute it. Close out scope, if open. If no
862: * elements have been generated, either create one (nc)
863: * or raise a warning.
864: */
865:
1.36 schwarze 866: if (MDOC_MAX != ntok) {
1.45 schwarze 867: if (scope && ! rew_elem(m, tok))
1.1 kristaps 868: return(0);
869: if (nc && 0 == cnt) {
1.22 schwarze 870: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 871: return(0);
1.22 schwarze 872: if ( ! rew_last(m, m->last))
1.3 schwarze 873: return(0);
1.1 kristaps 874: } else if ( ! nc && 0 == cnt) {
875: mdoc_argv_free(arg);
1.65 schwarze 876: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
1.1 kristaps 877: }
1.65 schwarze 878:
1.36 schwarze 879: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 880: return(0);
1.37 schwarze 881: if ( ! nl)
1.1 kristaps 882: return(1);
1.22 schwarze 883: return(append_delims(m, line, pos, buf));
1.21 schwarze 884: }
1.1 kristaps 885:
886: /*
887: * Non-quote-enclosed punctuation. Set up our scope, if
888: * a word; rewind the scope, if a delimiter; then append
889: * the word.
890: */
891:
1.66 ! schwarze 892: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 893:
1.45 schwarze 894: if (DELIM_NONE != d) {
895: /*
896: * If we encounter closing punctuation, no word
897: * has been omitted, no scope is open, and we're
898: * allowed to have an empty element, then start
899: * a new scope. `Ar', `Fl', and `Li', only do
900: * this once per invocation. There may be more
901: * of these (all of them?).
902: */
903: if (0 == cnt && (nc || MDOC_Li == tok) &&
904: DELIM_CLOSE == d && ! scope) {
905: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
906: return(0);
907: if (MDOC_Ar == tok || MDOC_Li == tok ||
908: MDOC_Fl == tok)
909: cnt++;
910: scope = 1;
911: }
912: /*
913: * Close out our scope, if one is open, before
914: * any punctuation.
915: */
916: if (scope && ! rew_elem(m, tok))
1.1 kristaps 917: return(0);
1.45 schwarze 918: scope = 0;
919: } else if ( ! scope) {
1.22 schwarze 920: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 921: return(0);
1.45 schwarze 922: scope = 1;
1.1 kristaps 923: }
924:
1.40 schwarze 925: if (DELIM_NONE == d)
1.1 kristaps 926: cnt++;
1.66 ! schwarze 927:
! 928: if ( ! dword(m, line, la, p, d))
1.1 kristaps 929: return(0);
1.27 schwarze 930:
931: /*
932: * `Fl' macros have their scope re-opened with each new
933: * word so that the `-' can be added to each one without
934: * having to parse out spaces.
935: */
1.45 schwarze 936: if (scope && MDOC_Fl == tok) {
1.27 schwarze 937: if ( ! rew_elem(m, tok))
938: return(0);
1.45 schwarze 939: scope = 0;
1.27 schwarze 940: }
1.1 kristaps 941: }
942:
1.45 schwarze 943: if (scope && ! rew_elem(m, tok))
1.1 kristaps 944: return(0);
945:
946: /*
947: * If no elements have been collected and we're allowed to have
948: * empties (nc), open a scope and close it out. Otherwise,
949: * raise a warning.
950: */
1.32 schwarze 951:
1.1 kristaps 952: if (nc && 0 == cnt) {
1.22 schwarze 953: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 954: return(0);
1.22 schwarze 955: if ( ! rew_last(m, m->last))
1.3 schwarze 956: return(0);
957: } else if ( ! nc && 0 == cnt) {
1.1 kristaps 958: mdoc_argv_free(arg);
1.65 schwarze 959: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
1.1 kristaps 960: }
961:
1.37 schwarze 962: if ( ! nl)
1.1 kristaps 963: return(1);
1.22 schwarze 964: return(append_delims(m, line, pos, buf));
1.1 kristaps 965: }
966:
967:
968: static int
969: blk_full(MACRO_PROT_ARGS)
970: {
1.43 schwarze 971: int la, nl;
1.1 kristaps 972: struct mdoc_arg *arg;
1.32 schwarze 973: struct mdoc_node *head; /* save of head macro */
1.34 schwarze 974: struct mdoc_node *body; /* save of body macro */
1.32 schwarze 975: struct mdoc_node *n;
1.46 schwarze 976: enum mdoc_type mtt;
1.36 schwarze 977: enum mdoct ntok;
1.37 schwarze 978: enum margserr ac, lac;
1.36 schwarze 979: enum margverr av;
1.1 kristaps 980: char *p;
981:
1.43 schwarze 982: nl = MDOC_NEWLINE & m->flags;
983:
1.32 schwarze 984: /* Close out prior implicit scope. */
1.12 schwarze 985:
1.1 kristaps 986: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.22 schwarze 987: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 988: return(0);
1.22 schwarze 989: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 990: return(0);
991: }
992:
1.32 schwarze 993: /*
994: * This routine accomodates implicitly- and explicitly-scoped
995: * macro openings. Implicit ones first close out prior scope
996: * (seen above). Delay opening the head until necessary to
997: * allow leading punctuation to print. Special consideration
998: * for `It -column', which has phrase-part syntax instead of
999: * regular child nodes.
1000: */
1001:
1.1 kristaps 1002: for (arg = NULL;; ) {
1.32 schwarze 1003: la = *pos;
1.36 schwarze 1004: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1005:
1.36 schwarze 1006: if (ARGV_WORD == av) {
1.32 schwarze 1007: *pos = la;
1.1 kristaps 1008: break;
1009: }
1010:
1.36 schwarze 1011: if (ARGV_EOLN == av)
1.1 kristaps 1012: break;
1.36 schwarze 1013: if (ARGV_ARG == av)
1.1 kristaps 1014: continue;
1015:
1016: mdoc_argv_free(arg);
1017: return(0);
1018: }
1019:
1.22 schwarze 1020: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1021: return(0);
1022:
1.34 schwarze 1023: head = body = NULL;
1.1 kristaps 1024:
1.32 schwarze 1025: /*
1026: * The `Nd' macro has all arguments in its body: it's a hybrid
1027: * of block partial-explicit and full-implicit. Stupid.
1028: */
1.12 schwarze 1029:
1.32 schwarze 1030: if (MDOC_Nd == tok) {
1031: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1032: return(0);
1033: head = m->last;
1.22 schwarze 1034: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.12 schwarze 1035: return(0);
1.22 schwarze 1036: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.12 schwarze 1037: return(0);
1.34 schwarze 1038: body = m->last;
1.12 schwarze 1039: }
1040:
1.37 schwarze 1041: ac = ARGS_ERROR;
1042:
1.41 schwarze 1043: for ( ; ; ) {
1.32 schwarze 1044: la = *pos;
1.46 schwarze 1045: /* Initialise last-phrase-type with ARGS_PEND. */
1046: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.36 schwarze 1047: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.52 schwarze 1048:
1049: if (ARGS_PUNCT == ac)
1050: break;
1.1 kristaps 1051:
1.36 schwarze 1052: if (ARGS_ERROR == ac)
1.1 kristaps 1053: return(0);
1.46 schwarze 1054:
1055: if (ARGS_EOLN == ac) {
1056: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1057: break;
1058: /*
1059: * This is necessary: if the last token on a
1060: * line is a `Ta' or tab, then we'll get
1061: * ARGS_EOLN, so we must be smart enough to
1062: * reopen our scope if the last parse was a
1063: * phrase or partial phrase.
1064: */
1065: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1066: return(0);
1067: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1068: return(0);
1069: body = m->last;
1.1 kristaps 1070: break;
1.41 schwarze 1071: }
1072:
1.46 schwarze 1073: /*
1074: * Emit leading punctuation (i.e., punctuation before
1075: * the MDOC_HEAD) for non-phrase types.
1076: */
1.32 schwarze 1077:
1.37 schwarze 1078: if (NULL == head &&
1.46 schwarze 1079: ARGS_PEND != ac &&
1.37 schwarze 1080: ARGS_PHRASE != ac &&
1.36 schwarze 1081: ARGS_PPHRASE != ac &&
1082: ARGS_QWORD != ac &&
1.66 ! schwarze 1083: DELIM_OPEN == mdoc_isdelim(p)) {
! 1084: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.32 schwarze 1085: return(0);
1086: continue;
1087: }
1088:
1.46 schwarze 1089: /* Open a head if one hasn't been opened. */
1.32 schwarze 1090:
1.46 schwarze 1091: if (NULL == head) {
1.32 schwarze 1092: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1093: return(0);
1.29 schwarze 1094: head = m->last;
1.32 schwarze 1095: }
1096:
1.46 schwarze 1097: if (ARGS_PHRASE == ac ||
1098: ARGS_PEND == ac ||
1099: ARGS_PPHRASE == ac) {
1100: /*
1101: * If we haven't opened a body yet, rewind the
1102: * head; if we have, rewind that instead.
1103: */
1104:
1105: mtt = body ? MDOC_BODY : MDOC_HEAD;
1106: if ( ! rew_sub(mtt, m, tok, line, ppos))
1107: return(0);
1108:
1109: /* Then allocate our body context. */
1110:
1111: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1112: return(0);
1113: body = m->last;
1114:
1115: /*
1116: * Process phrases: set whether we're in a
1117: * partial-phrase (this effects line handling)
1118: * then call down into the phrase parser.
1119: */
1120:
1.41 schwarze 1121: if (ARGS_PPHRASE == ac)
1122: m->flags |= MDOC_PPHRASE;
1.46 schwarze 1123: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1124: m->flags |= MDOC_PPHRASE;
1125:
1126: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1127: return(0);
1.46 schwarze 1128:
1.41 schwarze 1129: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1130: continue;
1131: }
1132:
1.36 schwarze 1133: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1134:
1135: if (MDOC_MAX == ntok) {
1.66 ! schwarze 1136: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1137: return(0);
1.36 schwarze 1138: continue;
1.32 schwarze 1139: }
1.36 schwarze 1140:
1141: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1142: return(0);
1.36 schwarze 1143: break;
1.32 schwarze 1144: }
1.1 kristaps 1145:
1.32 schwarze 1146: if (NULL == head) {
1147: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1148: return(0);
1.32 schwarze 1149: head = m->last;
1.1 kristaps 1150: }
1151:
1.43 schwarze 1152: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1153: return(0);
1.12 schwarze 1154:
1.34 schwarze 1155: /* If we've already opened our body, exit now. */
1.32 schwarze 1156:
1.34 schwarze 1157: if (NULL != body)
1.46 schwarze 1158: goto out;
1.29 schwarze 1159:
1160: /*
1.34 schwarze 1161: * If there is an open (i.e., unvalidated) sub-block requiring
1162: * explicit close-out, postpone switching the current block from
1163: * head to body until the rew_sub() call closing out that
1164: * sub-block.
1.29 schwarze 1165: */
1166: for (n = m->last; n && n != head; n = n->parent) {
1.34 schwarze 1167: if (MDOC_BLOCK == n->type &&
1168: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1169: ! (MDOC_VALID & n->flags)) {
1.29 schwarze 1170: n->pending = head;
1171: return(1);
1172: }
1173: }
1.54 schwarze 1174:
1.32 schwarze 1175: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1176:
1.22 schwarze 1177: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1178: return(0);
1.22 schwarze 1179: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1180: return(0);
1181:
1.46 schwarze 1182: out:
1183: if ( ! (MDOC_FREECOL & m->flags))
1184: return(1);
1185:
1186: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1187: return(0);
1188: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1189: return(0);
1190:
1191: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1192: return(1);
1193: }
1194:
1195:
1196: static int
1197: blk_part_imp(MACRO_PROT_ARGS)
1198: {
1.43 schwarze 1199: int la, nl;
1.36 schwarze 1200: enum mdoct ntok;
1201: enum margserr ac;
1.1 kristaps 1202: char *p;
1.32 schwarze 1203: struct mdoc_node *blk; /* saved block context */
1204: struct mdoc_node *body; /* saved body context */
1205: struct mdoc_node *n;
1.1 kristaps 1206:
1.43 schwarze 1207: nl = MDOC_NEWLINE & m->flags;
1208:
1.32 schwarze 1209: /*
1210: * A macro that spans to the end of the line. This is generally
1211: * (but not necessarily) called as the first macro. The block
1212: * has a head as the immediate child, which is always empty,
1213: * followed by zero or more opening punctuation nodes, then the
1214: * body (which may be empty, depending on the macro), then zero
1215: * or more closing punctuation nodes.
1216: */
1.22 schwarze 1217:
1218: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1219: return(0);
1.32 schwarze 1220:
1.22 schwarze 1221: blk = m->last;
1.32 schwarze 1222:
1.22 schwarze 1223: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1224: return(0);
1.22 schwarze 1225: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1226: return(0);
1227:
1.32 schwarze 1228: /*
1229: * Open the body scope "on-demand", that is, after we've
1230: * processed all our the leading delimiters (open parenthesis,
1231: * etc.).
1232: */
1.1 kristaps 1233:
1.32 schwarze 1234: for (body = NULL; ; ) {
1.22 schwarze 1235: la = *pos;
1.36 schwarze 1236: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.32 schwarze 1237:
1.36 schwarze 1238: if (ARGS_ERROR == ac)
1.1 kristaps 1239: return(0);
1.36 schwarze 1240: if (ARGS_EOLN == ac)
1.32 schwarze 1241: break;
1.36 schwarze 1242: if (ARGS_PUNCT == ac)
1.1 kristaps 1243: break;
1244:
1.36 schwarze 1245: if (NULL == body && ARGS_QWORD != ac &&
1.66 ! schwarze 1246: DELIM_OPEN == mdoc_isdelim(p)) {
! 1247: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.1 kristaps 1248: return(0);
1249: continue;
1250: }
1251:
1.32 schwarze 1252: if (NULL == body) {
1253: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1254: return(0);
1255: body = m->last;
1256: }
1257:
1.36 schwarze 1258: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1259:
1260: if (MDOC_MAX == ntok) {
1.66 ! schwarze 1261: if ( ! dword(m, line, la, p, DELIM_MAX))
1.32 schwarze 1262: return(0);
1.36 schwarze 1263: continue;
1264: }
1.32 schwarze 1265:
1.36 schwarze 1266: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1267: return(0);
1.36 schwarze 1268: break;
1.32 schwarze 1269: }
1270:
1271: /* Clean-ups to leave in a consistent state. */
1272:
1273: if (NULL == body) {
1274: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1275: return(0);
1.32 schwarze 1276: body = m->last;
1.39 schwarze 1277: }
1278:
1279: for (n = body->child; n && n->next; n = n->next)
1280: /* Do nothing. */ ;
1281:
1282: /*
1283: * End of sentence spacing: if the last node is a text node and
1284: * has a trailing period, then mark it as being end-of-sentence.
1285: */
1286:
1287: if (n && MDOC_TEXT == n->type && n->string)
1.55 schwarze 1288: if (mandoc_eos(n->string, strlen(n->string), 1))
1.39 schwarze 1289: n->flags |= MDOC_EOS;
1290:
1291: /* Up-propogate the end-of-space flag. */
1292:
1293: if (n && (MDOC_EOS & n->flags)) {
1294: body->flags |= MDOC_EOS;
1295: body->parent->flags |= MDOC_EOS;
1.1 kristaps 1296: }
1297:
1.47 schwarze 1298: /*
1299: * If there is an open sub-block requiring explicit close-out,
1300: * postpone closing out the current block
1301: * until the rew_sub() call closing out the sub-block.
1302: */
1303: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1304: if (MDOC_BLOCK == n->type &&
1305: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1306: ! (MDOC_VALID & n->flags)) {
1.59 schwarze 1307: make_pending(n, tok, m, line, ppos);
1.47 schwarze 1308: if ( ! mdoc_endbody_alloc(m, line, ppos,
1309: tok, body, ENDBODY_NOSPACE))
1310: return(0);
1311: return(1);
1312: }
1313: }
1314:
1.22 schwarze 1315: /*
1316: * If we can't rewind to our body, then our scope has already
1317: * been closed by another macro (like `Oc' closing `Op'). This
1318: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.34 schwarze 1319: * crufty use of `Op' breakage.
1.1 kristaps 1320: */
1.65 schwarze 1321: if (n != body)
1.66 ! schwarze 1322: mandoc_vmsg(MANDOCERR_SCOPENEST, m->parse, line, ppos,
1.65 schwarze 1323: "%s broken", mdoc_macronames[tok]);
1.32 schwarze 1324:
1.47 schwarze 1325: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 schwarze 1326: return(0);
1.1 kristaps 1327:
1.22 schwarze 1328: /* Standard appending of delimiters. */
1.1 kristaps 1329:
1.43 schwarze 1330: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1331: return(0);
1332:
1.22 schwarze 1333: /* Rewind scope, if applicable. */
1.1 kristaps 1334:
1.47 schwarze 1335: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1336: return(0);
1337:
1338: return(1);
1339: }
1340:
1341:
1342: static int
1343: blk_part_exp(MACRO_PROT_ARGS)
1344: {
1.37 schwarze 1345: int la, nl;
1.36 schwarze 1346: enum margserr ac;
1.32 schwarze 1347: struct mdoc_node *head; /* keep track of head */
1348: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1349: char *p;
1.36 schwarze 1350: enum mdoct ntok;
1.1 kristaps 1351:
1.37 schwarze 1352: nl = MDOC_NEWLINE & m->flags;
1353:
1.32 schwarze 1354: /*
1355: * The opening of an explicit macro having zero or more leading
1356: * punctuation nodes; a head with optional single element (the
1357: * case of `Eo'); and a body that may be empty.
1358: */
1.22 schwarze 1359:
1360: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1361: return(0);
1.22 schwarze 1362:
1.32 schwarze 1363: for (head = body = NULL; ; ) {
1.22 schwarze 1364: la = *pos;
1.36 schwarze 1365: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1366:
1.36 schwarze 1367: if (ARGS_ERROR == ac)
1.1 kristaps 1368: return(0);
1.36 schwarze 1369: if (ARGS_PUNCT == ac)
1.1 kristaps 1370: break;
1.36 schwarze 1371: if (ARGS_EOLN == ac)
1.1 kristaps 1372: break;
1373:
1.32 schwarze 1374: /* Flush out leading punctuation. */
1375:
1.36 schwarze 1376: if (NULL == head && ARGS_QWORD != ac &&
1.66 ! schwarze 1377: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1378: assert(NULL == body);
1.66 ! schwarze 1379: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.32 schwarze 1380: return(0);
1381: continue;
1382: }
1383:
1384: if (NULL == head) {
1385: assert(NULL == body);
1386: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1387: return(0);
1.32 schwarze 1388: head = m->last;
1.1 kristaps 1389: }
1390:
1.32 schwarze 1391: /*
1392: * `Eo' gobbles any data into the head, but most other
1393: * macros just immediately close out and begin the body.
1394: */
1395:
1396: if (NULL == body) {
1397: assert(head);
1398: /* No check whether it's a macro! */
1399: if (MDOC_Eo == tok)
1.66 ! schwarze 1400: if ( ! dword(m, line, la, p, DELIM_MAX))
1.32 schwarze 1401: return(0);
1402:
1.22 schwarze 1403: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1404: return(0);
1.22 schwarze 1405: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1406: return(0);
1.32 schwarze 1407: body = m->last;
1408:
1409: if (MDOC_Eo == tok)
1410: continue;
1411: }
1412:
1413: assert(NULL != head && NULL != body);
1414:
1.36 schwarze 1415: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1416:
1417: if (MDOC_MAX == ntok) {
1.66 ! schwarze 1418: if ( ! dword(m, line, la, p, DELIM_MAX))
1.32 schwarze 1419: return(0);
1.36 schwarze 1420: continue;
1.1 kristaps 1421: }
1.32 schwarze 1422:
1.36 schwarze 1423: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1424: return(0);
1.36 schwarze 1425: break;
1.1 kristaps 1426: }
1427:
1.32 schwarze 1428: /* Clean-up to leave in a consistent state. */
1429:
1430: if (NULL == head) {
1431: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1432: return(0);
1433: head = m->last;
1434: }
1.22 schwarze 1435:
1.32 schwarze 1436: if (NULL == body) {
1.22 schwarze 1437: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1438: return(0);
1.22 schwarze 1439: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1440: return(0);
1.32 schwarze 1441: body = m->last;
1.1 kristaps 1442: }
1443:
1.22 schwarze 1444: /* Standard appending of delimiters. */
1445:
1.37 schwarze 1446: if ( ! nl)
1.1 kristaps 1447: return(1);
1.22 schwarze 1448: return(append_delims(m, line, pos, buf));
1.1 kristaps 1449: }
1450:
1451:
1.37 schwarze 1452: /* ARGSUSED */
1.1 kristaps 1453: static int
1454: in_line_argn(MACRO_PROT_ARGS)
1455: {
1.37 schwarze 1456: int la, flushed, j, maxargs, nl;
1.36 schwarze 1457: enum margserr ac;
1458: enum margverr av;
1459: struct mdoc_arg *arg;
1460: char *p;
1461: enum mdoct ntok;
1.1 kristaps 1462:
1.37 schwarze 1463: nl = MDOC_NEWLINE & m->flags;
1464:
1.32 schwarze 1465: /*
1466: * A line macro that has a fixed number of arguments (maxargs).
1467: * Only open the scope once the first non-leading-punctuation is
1468: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1469: * keep it open until the maximum number of arguments are
1470: * exhausted.
1471: */
1.1 kristaps 1472:
1473: switch (tok) {
1474: case (MDOC_Ap):
1475: /* FALLTHROUGH */
1476: case (MDOC_No):
1477: /* FALLTHROUGH */
1478: case (MDOC_Ns):
1479: /* FALLTHROUGH */
1480: case (MDOC_Ux):
1481: maxargs = 0;
1482: break;
1.64 schwarze 1483: case (MDOC_Bx):
1484: /* FALLTHROUGH */
1.28 schwarze 1485: case (MDOC_Xr):
1486: maxargs = 2;
1487: break;
1.1 kristaps 1488: default:
1489: maxargs = 1;
1490: break;
1491: }
1492:
1.32 schwarze 1493: for (arg = NULL; ; ) {
1.22 schwarze 1494: la = *pos;
1.36 schwarze 1495: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1496:
1.36 schwarze 1497: if (ARGV_WORD == av) {
1.22 schwarze 1498: *pos = la;
1.1 kristaps 1499: break;
1500: }
1501:
1.36 schwarze 1502: if (ARGV_EOLN == av)
1.1 kristaps 1503: break;
1.36 schwarze 1504: if (ARGV_ARG == av)
1.1 kristaps 1505: continue;
1506:
1507: mdoc_argv_free(arg);
1508: return(0);
1509: }
1510:
1.32 schwarze 1511: for (flushed = j = 0; ; ) {
1.22 schwarze 1512: la = *pos;
1.36 schwarze 1513: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1514:
1.36 schwarze 1515: if (ARGS_ERROR == ac)
1.1 kristaps 1516: return(0);
1.36 schwarze 1517: if (ARGS_PUNCT == ac)
1.1 kristaps 1518: break;
1.36 schwarze 1519: if (ARGS_EOLN == ac)
1.1 kristaps 1520: break;
1521:
1.32 schwarze 1522: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.66 ! schwarze 1523: ARGS_QWORD != ac && 0 == j &&
! 1524: DELIM_OPEN == mdoc_isdelim(p)) {
! 1525: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.32 schwarze 1526: return(0);
1527: continue;
1.40 schwarze 1528: } else if (0 == j)
1.32 schwarze 1529: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1530: return(0);
1531:
1532: if (j == maxargs && ! flushed) {
1533: if ( ! rew_elem(m, tok))
1534: return(0);
1535: flushed = 1;
1536: }
1537:
1.36 schwarze 1538: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1539:
1540: if (MDOC_MAX != ntok) {
1.22 schwarze 1541: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1542: return(0);
1543: flushed = 1;
1.36 schwarze 1544: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1545: return(0);
1.32 schwarze 1546: j++;
1.1 kristaps 1547: break;
1548: }
1549:
1550: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1551: ARGS_QWORD != ac &&
1.40 schwarze 1552: ! flushed &&
1.66 ! schwarze 1553: DELIM_NONE != mdoc_isdelim(p)) {
1.22 schwarze 1554: if ( ! rew_elem(m, tok))
1.1 kristaps 1555: return(0);
1556: flushed = 1;
1557: }
1.28 schwarze 1558:
1559: /*
1560: * XXX: this is a hack to work around groff's ugliness
1561: * as regards `Xr' and extraneous arguments. It should
1562: * ideally be deprecated behaviour, but because this is
1563: * code is no here, it's unlikely to be removed.
1564: */
1565: if (MDOC_Xr == tok && j == maxargs) {
1.32 schwarze 1566: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.28 schwarze 1567: return(0);
1568: if ( ! rew_elem(m, MDOC_Ns))
1569: return(0);
1570: }
1571:
1.66 ! schwarze 1572: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1573: return(0);
1.32 schwarze 1574: j++;
1.1 kristaps 1575: }
1576:
1.32 schwarze 1577: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1578: return(0);
1579:
1580: /* Close out in a consistent state. */
1.22 schwarze 1581:
1582: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1583: return(0);
1.37 schwarze 1584: if ( ! nl)
1.1 kristaps 1585: return(1);
1.22 schwarze 1586: return(append_delims(m, line, pos, buf));
1.1 kristaps 1587: }
1588:
1589:
1590: static int
1591: in_line_eoln(MACRO_PROT_ARGS)
1592: {
1.36 schwarze 1593: int la;
1594: enum margserr ac;
1595: enum margverr av;
1596: struct mdoc_arg *arg;
1597: char *p;
1598: enum mdoct ntok;
1.1 kristaps 1599:
1600: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1601:
1.53 schwarze 1602: if (tok == MDOC_Pp)
1603: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1604:
1.22 schwarze 1605: /* Parse macro arguments. */
1.1 kristaps 1606:
1.22 schwarze 1607: for (arg = NULL; ; ) {
1.1 kristaps 1608: la = *pos;
1.36 schwarze 1609: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1610:
1.36 schwarze 1611: if (ARGV_WORD == av) {
1.1 kristaps 1612: *pos = la;
1613: break;
1614: }
1.36 schwarze 1615: if (ARGV_EOLN == av)
1.1 kristaps 1616: break;
1.36 schwarze 1617: if (ARGV_ARG == av)
1.1 kristaps 1618: continue;
1619:
1620: mdoc_argv_free(arg);
1621: return(0);
1622: }
1623:
1.22 schwarze 1624: /* Open element scope. */
1625:
1626: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1627: return(0);
1628:
1.22 schwarze 1629: /* Parse argument terms. */
1.1 kristaps 1630:
1631: for (;;) {
1632: la = *pos;
1.36 schwarze 1633: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1634:
1.36 schwarze 1635: if (ARGS_ERROR == ac)
1.1 kristaps 1636: return(0);
1.36 schwarze 1637: if (ARGS_EOLN == ac)
1.1 kristaps 1638: break;
1639:
1.36 schwarze 1640: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1641:
1.36 schwarze 1642: if (MDOC_MAX == ntok) {
1.66 ! schwarze 1643: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1644: return(0);
1.36 schwarze 1645: continue;
1646: }
1.1 kristaps 1647:
1.36 schwarze 1648: if ( ! rew_elem(m, tok))
1.1 kristaps 1649: return(0);
1.36 schwarze 1650: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1651: }
1652:
1.22 schwarze 1653: /* Close out (no delimiters). */
1654:
1655: return(rew_elem(m, tok));
1.28 schwarze 1656: }
1657:
1658:
1659: /* ARGSUSED */
1660: static int
1661: ctx_synopsis(MACRO_PROT_ARGS)
1662: {
1.37 schwarze 1663: int nl;
1664:
1665: nl = MDOC_NEWLINE & m->flags;
1.28 schwarze 1666:
1667: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.53 schwarze 1668: if ( ! (MDOC_SYNOPSIS & m->flags))
1.28 schwarze 1669: return(in_line(m, tok, line, ppos, pos, buf));
1670:
1671: /* If we're a nested call, same place. */
1.37 schwarze 1672: if ( ! nl)
1.28 schwarze 1673: return(in_line(m, tok, line, ppos, pos, buf));
1674:
1675: /*
1676: * XXX: this will open a block scope; however, if later we end
1677: * up formatting the block scope, then child nodes will inherit
1678: * the formatting. Be careful.
1679: */
1.51 schwarze 1680: if (MDOC_Nm == tok)
1681: return(blk_full(m, tok, line, ppos, pos, buf));
1682: assert(MDOC_Vt == tok);
1.28 schwarze 1683: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.1 kristaps 1684: }
1685:
1686:
1687: /* ARGSUSED */
1688: static int
1689: obsolete(MACRO_PROT_ARGS)
1690: {
1691:
1.65 schwarze 1692: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS);
1693: return(1);
1.1 kristaps 1694: }
1695:
1696:
1.17 schwarze 1697: /*
1698: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1699: * They're unusual because they're basically free-form text until a
1700: * macro is encountered.
1701: */
1.1 kristaps 1702: static int
1.46 schwarze 1703: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1704: {
1.36 schwarze 1705: int la, pos;
1.46 schwarze 1706: enum margserr ac;
1.36 schwarze 1707: enum mdoct ntok;
1708: char *p;
1.1 kristaps 1709:
1.17 schwarze 1710: for (pos = ppos; ; ) {
1711: la = pos;
1.1 kristaps 1712:
1.46 schwarze 1713: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1714:
1.46 schwarze 1715: if (ARGS_ERROR == ac)
1.17 schwarze 1716: return(0);
1.46 schwarze 1717: if (ARGS_EOLN == ac)
1.17 schwarze 1718: break;
1.1 kristaps 1719:
1.46 schwarze 1720: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1721:
1.36 schwarze 1722: if (MDOC_MAX == ntok) {
1.66 ! schwarze 1723: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1724: return(0);
1.36 schwarze 1725: continue;
1726: }
1.1 kristaps 1727:
1.36 schwarze 1728: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1729: return(0);
1.36 schwarze 1730: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1731: }
1732:
1733: return(1);
1734: }
1.17 schwarze 1735:
1736:
1.46 schwarze 1737: /* ARGSUSED */
1738: static int
1739: phrase_ta(MACRO_PROT_ARGS)
1740: {
1741: int la;
1742: enum mdoct ntok;
1743: enum margserr ac;
1744: char *p;
1745:
1746: /*
1747: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1748: * it should simply error out with ARGSLOST.
1749: */
1750:
1751: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1752: return(0);
1753: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1754: return(0);
1755:
1756: for (;;) {
1757: la = *pos;
1758: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1759:
1760: if (ARGS_ERROR == ac)
1761: return(0);
1762: if (ARGS_EOLN == ac)
1763: break;
1764:
1765: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1766:
1767: if (MDOC_MAX == ntok) {
1.66 ! schwarze 1768: if ( ! dword(m, line, la, p, DELIM_MAX))
1.46 schwarze 1769: return(0);
1770: continue;
1771: }
1772:
1773: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1774: return(0);
1775: return(append_delims(m, line, pos, buf));
1776: }
1777:
1778: return(1);
1779: }
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