Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.68
1.68 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.67 2011/04/24 16:49:10 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;
1.67 schwarze 599: else if (DELIM_CLOSE == d && m->last->prev &&
600: m->last->prev->tok != MDOC_No)
1.66 schwarze 601: m->last->flags |= MDOC_DELIMC;
602:
603: return(1);
604: }
1.1 kristaps 605:
606: static int
1.42 schwarze 607: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 608: {
1.42 schwarze 609: int la;
1.36 schwarze 610: enum margserr ac;
1.1 kristaps 611: char *p;
612:
1.42 schwarze 613: if ('\0' == buf[*pos])
1.1 kristaps 614: return(1);
615:
616: for (;;) {
1.42 schwarze 617: la = *pos;
1.68 ! schwarze 618: ac = mdoc_zargs(m, line, pos, buf, &p);
1.1 kristaps 619:
1.36 schwarze 620: if (ARGS_ERROR == ac)
1.1 kristaps 621: return(0);
1.36 schwarze 622: else if (ARGS_EOLN == ac)
1.1 kristaps 623: break;
1.42 schwarze 624:
1.66 schwarze 625: dword(m, line, la, p, DELIM_MAX);
1.43 schwarze 626:
1.42 schwarze 627: /*
628: * If we encounter end-of-sentence symbols, then trigger
629: * the double-space.
630: *
1.68 ! schwarze 631: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 632: * the last symbol, such that `. )' will cause the
633: * correct double-spacing. However, (1) groff isn't
634: * smart enough to do this and (2) it would require
635: * knowing which symbols break this behaviour, for
1.68 ! schwarze 636: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 637: */
1.55 schwarze 638: if (mandoc_eos(p, strlen(p), 0))
1.42 schwarze 639: m->last->flags |= MDOC_EOS;
1.1 kristaps 640: }
641:
642: return(1);
643: }
644:
645:
646: /*
647: * Close out block partial/full explicit.
648: */
649: static int
650: blk_exp_close(MACRO_PROT_ARGS)
651: {
1.47 schwarze 652: struct mdoc_node *body; /* Our own body. */
653: struct mdoc_node *later; /* A sub-block starting later. */
654: struct mdoc_node *n; /* For searching backwards. */
655:
1.37 schwarze 656: int j, lastarg, maxargs, flushed, nl;
1.36 schwarze 657: enum margserr ac;
1.47 schwarze 658: enum mdoct atok, ntok;
1.1 kristaps 659: char *p;
660:
1.37 schwarze 661: nl = MDOC_NEWLINE & m->flags;
662:
1.1 kristaps 663: switch (tok) {
664: case (MDOC_Ec):
665: maxargs = 1;
666: break;
667: default:
668: maxargs = 0;
669: break;
670: }
671:
1.47 schwarze 672: /*
673: * Search backwards for beginnings of blocks,
674: * both of our own and of pending sub-blocks.
675: */
676: atok = rew_alt(tok);
677: body = later = NULL;
678: for (n = m->last; n; n = n->parent) {
679: if (MDOC_VALID & n->flags)
680: continue;
681:
682: /* Remember the start of our own body. */
683: if (MDOC_BODY == n->type && atok == n->tok) {
1.54 schwarze 684: if (ENDBODY_NOT == n->end)
1.47 schwarze 685: body = n;
686: continue;
687: }
688:
1.51 schwarze 689: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.47 schwarze 690: continue;
691: if (atok == n->tok) {
692: assert(body);
693:
694: /*
695: * Found the start of our own block.
696: * When there is no pending sub block,
697: * just proceed to closing out.
698: */
699: if (NULL == later)
700: break;
701:
702: /*
703: * When there is a pending sub block,
704: * postpone closing out the current block
705: * until the rew_sub() closing out the sub-block.
706: */
1.59 schwarze 707: make_pending(later, tok, m, line, ppos);
1.47 schwarze 708:
709: /*
710: * Mark the place where the formatting - but not
711: * the scope - of the current block ends.
712: */
713: if ( ! mdoc_endbody_alloc(m, line, ppos,
714: atok, body, ENDBODY_SPACE))
715: return(0);
716: break;
717: }
718:
719: /*
720: * When finding an open sub block, remember the last
721: * open explicit block, or, in case there are only
722: * implicit ones, the first open implicit block.
723: */
724: if (later &&
725: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
726: continue;
1.60 schwarze 727: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags)
1.47 schwarze 728: later = n;
729: }
730:
1.1 kristaps 731: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.44 schwarze 732: /* FIXME: do this in validate */
1.14 schwarze 733: if (buf[*pos])
1.65 schwarze 734: mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST);
1.14 schwarze 735:
1.22 schwarze 736: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.14 schwarze 737: return(0);
1.22 schwarze 738: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 739: }
740:
1.22 schwarze 741: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 742: return(0);
743:
1.47 schwarze 744: if (NULL == later && maxargs > 0)
1.22 schwarze 745: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 746: return(0);
747:
1.20 schwarze 748: for (flushed = j = 0; ; j++) {
1.1 kristaps 749: lastarg = *pos;
750:
751: if (j == maxargs && ! flushed) {
1.22 schwarze 752: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 753: return(0);
754: flushed = 1;
755: }
756:
1.36 schwarze 757: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 758:
1.36 schwarze 759: if (ARGS_ERROR == ac)
1.1 kristaps 760: return(0);
1.36 schwarze 761: if (ARGS_PUNCT == ac)
1.1 kristaps 762: break;
1.36 schwarze 763: if (ARGS_EOLN == ac)
1.1 kristaps 764: break;
765:
1.36 schwarze 766: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
767:
768: if (MDOC_MAX == ntok) {
1.66 schwarze 769: if ( ! dword(m, line, lastarg, p, DELIM_MAX))
1.1 kristaps 770: return(0);
1.36 schwarze 771: continue;
772: }
1.1 kristaps 773:
1.36 schwarze 774: if ( ! flushed) {
775: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
776: return(0);
777: flushed = 1;
778: }
779: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 780: return(0);
1.36 schwarze 781: break;
1.1 kristaps 782: }
783:
1.22 schwarze 784: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 785: return(0);
786:
1.37 schwarze 787: if ( ! nl)
1.1 kristaps 788: return(1);
1.22 schwarze 789: return(append_delims(m, line, pos, buf));
1.1 kristaps 790: }
791:
792:
793: static int
794: in_line(MACRO_PROT_ARGS)
795: {
1.45 schwarze 796: int la, scope, cnt, nc, nl;
1.36 schwarze 797: enum margverr av;
798: enum mdoct ntok;
799: enum margserr ac;
1.40 schwarze 800: enum mdelim d;
1.36 schwarze 801: struct mdoc_arg *arg;
802: char *p;
1.1 kristaps 803:
1.37 schwarze 804: nl = MDOC_NEWLINE & m->flags;
805:
1.1 kristaps 806: /*
807: * Whether we allow ignored elements (those without content,
808: * usually because of reserved words) to squeak by.
809: */
1.32 schwarze 810:
1.1 kristaps 811: switch (tok) {
1.19 schwarze 812: case (MDOC_An):
813: /* FALLTHROUGH */
814: case (MDOC_Ar):
1.1 kristaps 815: /* FALLTHROUGH */
816: case (MDOC_Fl):
817: /* FALLTHROUGH */
1.60 schwarze 818: case (MDOC_Mt):
1.18 schwarze 819: /* FALLTHROUGH */
1.19 schwarze 820: case (MDOC_Nm):
821: /* FALLTHROUGH */
1.18 schwarze 822: case (MDOC_Pa):
1.1 kristaps 823: nc = 1;
824: break;
825: default:
826: nc = 0;
827: break;
828: }
829:
1.20 schwarze 830: for (arg = NULL;; ) {
1.1 kristaps 831: la = *pos;
1.36 schwarze 832: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 833:
1.36 schwarze 834: if (ARGV_WORD == av) {
1.1 kristaps 835: *pos = la;
836: break;
837: }
1.36 schwarze 838: if (ARGV_EOLN == av)
1.1 kristaps 839: break;
1.36 schwarze 840: if (ARGV_ARG == av)
1.1 kristaps 841: continue;
842:
843: mdoc_argv_free(arg);
844: return(0);
845: }
846:
1.45 schwarze 847: for (cnt = scope = 0;; ) {
1.1 kristaps 848: la = *pos;
1.36 schwarze 849: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 850:
1.36 schwarze 851: if (ARGS_ERROR == ac)
1.1 kristaps 852: return(0);
1.36 schwarze 853: if (ARGS_EOLN == ac)
1.1 kristaps 854: break;
1.36 schwarze 855: if (ARGS_PUNCT == ac)
1.1 kristaps 856: break;
857:
1.36 schwarze 858: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 859:
860: /*
861: * In this case, we've located a submacro and must
862: * execute it. Close out scope, if open. If no
863: * elements have been generated, either create one (nc)
864: * or raise a warning.
865: */
866:
1.36 schwarze 867: if (MDOC_MAX != ntok) {
1.45 schwarze 868: if (scope && ! rew_elem(m, tok))
1.1 kristaps 869: return(0);
870: if (nc && 0 == cnt) {
1.22 schwarze 871: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 872: return(0);
1.22 schwarze 873: if ( ! rew_last(m, m->last))
1.3 schwarze 874: return(0);
1.1 kristaps 875: } else if ( ! nc && 0 == cnt) {
876: mdoc_argv_free(arg);
1.65 schwarze 877: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
1.1 kristaps 878: }
1.65 schwarze 879:
1.36 schwarze 880: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 881: return(0);
1.37 schwarze 882: if ( ! nl)
1.1 kristaps 883: return(1);
1.22 schwarze 884: return(append_delims(m, line, pos, buf));
1.21 schwarze 885: }
1.1 kristaps 886:
887: /*
888: * Non-quote-enclosed punctuation. Set up our scope, if
889: * a word; rewind the scope, if a delimiter; then append
890: * the word.
891: */
892:
1.66 schwarze 893: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 894:
1.45 schwarze 895: if (DELIM_NONE != d) {
896: /*
897: * If we encounter closing punctuation, no word
898: * has been omitted, no scope is open, and we're
899: * allowed to have an empty element, then start
900: * a new scope. `Ar', `Fl', and `Li', only do
901: * this once per invocation. There may be more
902: * of these (all of them?).
903: */
904: if (0 == cnt && (nc || MDOC_Li == tok) &&
905: DELIM_CLOSE == d && ! scope) {
906: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
907: return(0);
908: if (MDOC_Ar == tok || MDOC_Li == tok ||
909: MDOC_Fl == tok)
910: cnt++;
911: scope = 1;
912: }
913: /*
914: * Close out our scope, if one is open, before
915: * any punctuation.
916: */
917: if (scope && ! rew_elem(m, tok))
1.1 kristaps 918: return(0);
1.45 schwarze 919: scope = 0;
920: } else if ( ! scope) {
1.22 schwarze 921: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 922: return(0);
1.45 schwarze 923: scope = 1;
1.1 kristaps 924: }
925:
1.40 schwarze 926: if (DELIM_NONE == d)
1.1 kristaps 927: cnt++;
1.66 schwarze 928:
929: if ( ! dword(m, line, la, p, d))
1.1 kristaps 930: return(0);
1.27 schwarze 931:
932: /*
933: * `Fl' macros have their scope re-opened with each new
934: * word so that the `-' can be added to each one without
935: * having to parse out spaces.
936: */
1.45 schwarze 937: if (scope && MDOC_Fl == tok) {
1.27 schwarze 938: if ( ! rew_elem(m, tok))
939: return(0);
1.45 schwarze 940: scope = 0;
1.27 schwarze 941: }
1.1 kristaps 942: }
943:
1.45 schwarze 944: if (scope && ! rew_elem(m, tok))
1.1 kristaps 945: return(0);
946:
947: /*
948: * If no elements have been collected and we're allowed to have
949: * empties (nc), open a scope and close it out. Otherwise,
950: * raise a warning.
951: */
1.32 schwarze 952:
1.1 kristaps 953: if (nc && 0 == cnt) {
1.22 schwarze 954: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 955: return(0);
1.22 schwarze 956: if ( ! rew_last(m, m->last))
1.3 schwarze 957: return(0);
958: } else if ( ! nc && 0 == cnt) {
1.1 kristaps 959: mdoc_argv_free(arg);
1.65 schwarze 960: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
1.1 kristaps 961: }
962:
1.37 schwarze 963: if ( ! nl)
1.1 kristaps 964: return(1);
1.22 schwarze 965: return(append_delims(m, line, pos, buf));
1.1 kristaps 966: }
967:
968:
969: static int
970: blk_full(MACRO_PROT_ARGS)
971: {
1.43 schwarze 972: int la, nl;
1.1 kristaps 973: struct mdoc_arg *arg;
1.32 schwarze 974: struct mdoc_node *head; /* save of head macro */
1.34 schwarze 975: struct mdoc_node *body; /* save of body macro */
1.32 schwarze 976: struct mdoc_node *n;
1.46 schwarze 977: enum mdoc_type mtt;
1.36 schwarze 978: enum mdoct ntok;
1.37 schwarze 979: enum margserr ac, lac;
1.36 schwarze 980: enum margverr av;
1.1 kristaps 981: char *p;
982:
1.43 schwarze 983: nl = MDOC_NEWLINE & m->flags;
984:
1.32 schwarze 985: /* Close out prior implicit scope. */
1.12 schwarze 986:
1.1 kristaps 987: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.22 schwarze 988: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 989: return(0);
1.22 schwarze 990: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 991: return(0);
992: }
993:
1.32 schwarze 994: /*
1.68 ! schwarze 995: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 996: * macro openings. Implicit ones first close out prior scope
997: * (seen above). Delay opening the head until necessary to
998: * allow leading punctuation to print. Special consideration
999: * for `It -column', which has phrase-part syntax instead of
1000: * regular child nodes.
1001: */
1002:
1.1 kristaps 1003: for (arg = NULL;; ) {
1.32 schwarze 1004: la = *pos;
1.36 schwarze 1005: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1006:
1.36 schwarze 1007: if (ARGV_WORD == av) {
1.32 schwarze 1008: *pos = la;
1.1 kristaps 1009: break;
1010: }
1011:
1.36 schwarze 1012: if (ARGV_EOLN == av)
1.1 kristaps 1013: break;
1.36 schwarze 1014: if (ARGV_ARG == av)
1.1 kristaps 1015: continue;
1016:
1017: mdoc_argv_free(arg);
1018: return(0);
1019: }
1020:
1.22 schwarze 1021: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1022: return(0);
1023:
1.34 schwarze 1024: head = body = NULL;
1.1 kristaps 1025:
1.32 schwarze 1026: /*
1027: * The `Nd' macro has all arguments in its body: it's a hybrid
1028: * of block partial-explicit and full-implicit. Stupid.
1029: */
1.12 schwarze 1030:
1.32 schwarze 1031: if (MDOC_Nd == tok) {
1032: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1033: return(0);
1034: head = m->last;
1.22 schwarze 1035: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.12 schwarze 1036: return(0);
1.22 schwarze 1037: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.12 schwarze 1038: return(0);
1.34 schwarze 1039: body = m->last;
1.12 schwarze 1040: }
1041:
1.37 schwarze 1042: ac = ARGS_ERROR;
1043:
1.41 schwarze 1044: for ( ; ; ) {
1.32 schwarze 1045: la = *pos;
1.46 schwarze 1046: /* Initialise last-phrase-type with ARGS_PEND. */
1047: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.36 schwarze 1048: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.52 schwarze 1049:
1050: if (ARGS_PUNCT == ac)
1051: break;
1.1 kristaps 1052:
1.36 schwarze 1053: if (ARGS_ERROR == ac)
1.1 kristaps 1054: return(0);
1.46 schwarze 1055:
1056: if (ARGS_EOLN == ac) {
1057: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1058: break;
1059: /*
1060: * This is necessary: if the last token on a
1061: * line is a `Ta' or tab, then we'll get
1062: * ARGS_EOLN, so we must be smart enough to
1063: * reopen our scope if the last parse was a
1064: * phrase or partial phrase.
1065: */
1066: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1067: return(0);
1068: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1069: return(0);
1070: body = m->last;
1.1 kristaps 1071: break;
1.41 schwarze 1072: }
1073:
1.46 schwarze 1074: /*
1075: * Emit leading punctuation (i.e., punctuation before
1076: * the MDOC_HEAD) for non-phrase types.
1077: */
1.32 schwarze 1078:
1.37 schwarze 1079: if (NULL == head &&
1.46 schwarze 1080: ARGS_PEND != ac &&
1.37 schwarze 1081: ARGS_PHRASE != ac &&
1.36 schwarze 1082: ARGS_PPHRASE != ac &&
1083: ARGS_QWORD != ac &&
1.66 schwarze 1084: DELIM_OPEN == mdoc_isdelim(p)) {
1085: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.32 schwarze 1086: return(0);
1087: continue;
1088: }
1089:
1.46 schwarze 1090: /* Open a head if one hasn't been opened. */
1.32 schwarze 1091:
1.46 schwarze 1092: if (NULL == head) {
1.32 schwarze 1093: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1094: return(0);
1.29 schwarze 1095: head = m->last;
1.32 schwarze 1096: }
1097:
1.46 schwarze 1098: if (ARGS_PHRASE == ac ||
1099: ARGS_PEND == ac ||
1100: ARGS_PPHRASE == ac) {
1101: /*
1102: * If we haven't opened a body yet, rewind the
1103: * head; if we have, rewind that instead.
1104: */
1105:
1106: mtt = body ? MDOC_BODY : MDOC_HEAD;
1107: if ( ! rew_sub(mtt, m, tok, line, ppos))
1108: return(0);
1109:
1110: /* Then allocate our body context. */
1111:
1112: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1113: return(0);
1114: body = m->last;
1115:
1116: /*
1117: * Process phrases: set whether we're in a
1118: * partial-phrase (this effects line handling)
1119: * then call down into the phrase parser.
1120: */
1121:
1.41 schwarze 1122: if (ARGS_PPHRASE == ac)
1123: m->flags |= MDOC_PPHRASE;
1.46 schwarze 1124: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1125: m->flags |= MDOC_PPHRASE;
1126:
1127: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1128: return(0);
1.46 schwarze 1129:
1.41 schwarze 1130: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1131: continue;
1132: }
1133:
1.36 schwarze 1134: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1135:
1136: if (MDOC_MAX == ntok) {
1.66 schwarze 1137: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1138: return(0);
1.36 schwarze 1139: continue;
1.32 schwarze 1140: }
1.36 schwarze 1141:
1142: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1143: return(0);
1.36 schwarze 1144: break;
1.32 schwarze 1145: }
1.1 kristaps 1146:
1.32 schwarze 1147: if (NULL == head) {
1148: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1149: return(0);
1.32 schwarze 1150: head = m->last;
1.1 kristaps 1151: }
1152:
1.43 schwarze 1153: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1154: return(0);
1.12 schwarze 1155:
1.34 schwarze 1156: /* If we've already opened our body, exit now. */
1.32 schwarze 1157:
1.34 schwarze 1158: if (NULL != body)
1.46 schwarze 1159: goto out;
1.29 schwarze 1160:
1161: /*
1.34 schwarze 1162: * If there is an open (i.e., unvalidated) sub-block requiring
1163: * explicit close-out, postpone switching the current block from
1164: * head to body until the rew_sub() call closing out that
1165: * sub-block.
1.29 schwarze 1166: */
1167: for (n = m->last; n && n != head; n = n->parent) {
1.34 schwarze 1168: if (MDOC_BLOCK == n->type &&
1169: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1170: ! (MDOC_VALID & n->flags)) {
1.29 schwarze 1171: n->pending = head;
1172: return(1);
1173: }
1174: }
1.54 schwarze 1175:
1.32 schwarze 1176: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1177:
1.22 schwarze 1178: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1179: return(0);
1.22 schwarze 1180: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1181: return(0);
1182:
1.46 schwarze 1183: out:
1184: if ( ! (MDOC_FREECOL & m->flags))
1185: return(1);
1186:
1187: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1188: return(0);
1189: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1190: return(0);
1191:
1192: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1193: return(1);
1194: }
1195:
1196:
1197: static int
1198: blk_part_imp(MACRO_PROT_ARGS)
1199: {
1.43 schwarze 1200: int la, nl;
1.36 schwarze 1201: enum mdoct ntok;
1202: enum margserr ac;
1.1 kristaps 1203: char *p;
1.32 schwarze 1204: struct mdoc_node *blk; /* saved block context */
1205: struct mdoc_node *body; /* saved body context */
1206: struct mdoc_node *n;
1.1 kristaps 1207:
1.43 schwarze 1208: nl = MDOC_NEWLINE & m->flags;
1209:
1.32 schwarze 1210: /*
1211: * A macro that spans to the end of the line. This is generally
1212: * (but not necessarily) called as the first macro. The block
1213: * has a head as the immediate child, which is always empty,
1214: * followed by zero or more opening punctuation nodes, then the
1215: * body (which may be empty, depending on the macro), then zero
1216: * or more closing punctuation nodes.
1217: */
1.22 schwarze 1218:
1219: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1220: return(0);
1.32 schwarze 1221:
1.22 schwarze 1222: blk = m->last;
1.32 schwarze 1223:
1.22 schwarze 1224: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1225: return(0);
1.22 schwarze 1226: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1227: return(0);
1228:
1.32 schwarze 1229: /*
1230: * Open the body scope "on-demand", that is, after we've
1231: * processed all our the leading delimiters (open parenthesis,
1232: * etc.).
1233: */
1.1 kristaps 1234:
1.32 schwarze 1235: for (body = NULL; ; ) {
1.22 schwarze 1236: la = *pos;
1.36 schwarze 1237: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.32 schwarze 1238:
1.36 schwarze 1239: if (ARGS_ERROR == ac)
1.1 kristaps 1240: return(0);
1.36 schwarze 1241: if (ARGS_EOLN == ac)
1.32 schwarze 1242: break;
1.36 schwarze 1243: if (ARGS_PUNCT == ac)
1.1 kristaps 1244: break;
1245:
1.36 schwarze 1246: if (NULL == body && ARGS_QWORD != ac &&
1.66 schwarze 1247: DELIM_OPEN == mdoc_isdelim(p)) {
1248: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.1 kristaps 1249: return(0);
1250: continue;
1251: }
1252:
1.32 schwarze 1253: if (NULL == body) {
1254: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1255: return(0);
1256: body = m->last;
1257: }
1258:
1.36 schwarze 1259: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1260:
1261: if (MDOC_MAX == ntok) {
1.66 schwarze 1262: if ( ! dword(m, line, la, p, DELIM_MAX))
1.32 schwarze 1263: return(0);
1.36 schwarze 1264: continue;
1265: }
1.32 schwarze 1266:
1.36 schwarze 1267: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.32 schwarze 1268: return(0);
1.36 schwarze 1269: break;
1.32 schwarze 1270: }
1271:
1272: /* Clean-ups to leave in a consistent state. */
1273:
1274: if (NULL == body) {
1275: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1276: return(0);
1.32 schwarze 1277: body = m->last;
1.39 schwarze 1278: }
1279:
1280: for (n = body->child; n && n->next; n = n->next)
1281: /* Do nothing. */ ;
1282:
1283: /*
1284: * End of sentence spacing: if the last node is a text node and
1285: * has a trailing period, then mark it as being end-of-sentence.
1286: */
1287:
1288: if (n && MDOC_TEXT == n->type && n->string)
1.55 schwarze 1289: if (mandoc_eos(n->string, strlen(n->string), 1))
1.39 schwarze 1290: n->flags |= MDOC_EOS;
1291:
1.68 ! schwarze 1292: /* Up-propagate the end-of-space flag. */
1.39 schwarze 1293:
1294: if (n && (MDOC_EOS & n->flags)) {
1295: body->flags |= MDOC_EOS;
1296: body->parent->flags |= MDOC_EOS;
1.1 kristaps 1297: }
1298:
1.47 schwarze 1299: /*
1300: * If there is an open sub-block requiring explicit close-out,
1301: * postpone closing out the current block
1302: * until the rew_sub() call closing out the sub-block.
1303: */
1304: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1305: if (MDOC_BLOCK == n->type &&
1306: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1307: ! (MDOC_VALID & n->flags)) {
1.59 schwarze 1308: make_pending(n, tok, m, line, ppos);
1.47 schwarze 1309: if ( ! mdoc_endbody_alloc(m, line, ppos,
1310: tok, body, ENDBODY_NOSPACE))
1311: return(0);
1312: return(1);
1313: }
1314: }
1315:
1.22 schwarze 1316: /*
1317: * If we can't rewind to our body, then our scope has already
1318: * been closed by another macro (like `Oc' closing `Op'). This
1319: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.34 schwarze 1320: * crufty use of `Op' breakage.
1.1 kristaps 1321: */
1.65 schwarze 1322: if (n != body)
1.66 schwarze 1323: mandoc_vmsg(MANDOCERR_SCOPENEST, m->parse, line, ppos,
1.65 schwarze 1324: "%s broken", mdoc_macronames[tok]);
1.32 schwarze 1325:
1.47 schwarze 1326: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 schwarze 1327: return(0);
1.1 kristaps 1328:
1.22 schwarze 1329: /* Standard appending of delimiters. */
1.1 kristaps 1330:
1.43 schwarze 1331: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1332: return(0);
1333:
1.22 schwarze 1334: /* Rewind scope, if applicable. */
1.1 kristaps 1335:
1.47 schwarze 1336: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1337: return(0);
1338:
1339: return(1);
1340: }
1341:
1342:
1343: static int
1344: blk_part_exp(MACRO_PROT_ARGS)
1345: {
1.37 schwarze 1346: int la, nl;
1.36 schwarze 1347: enum margserr ac;
1.32 schwarze 1348: struct mdoc_node *head; /* keep track of head */
1349: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1350: char *p;
1.36 schwarze 1351: enum mdoct ntok;
1.1 kristaps 1352:
1.37 schwarze 1353: nl = MDOC_NEWLINE & m->flags;
1354:
1.32 schwarze 1355: /*
1356: * The opening of an explicit macro having zero or more leading
1357: * punctuation nodes; a head with optional single element (the
1358: * case of `Eo'); and a body that may be empty.
1359: */
1.22 schwarze 1360:
1361: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1362: return(0);
1.22 schwarze 1363:
1.32 schwarze 1364: for (head = body = NULL; ; ) {
1.22 schwarze 1365: la = *pos;
1.36 schwarze 1366: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1367:
1.36 schwarze 1368: if (ARGS_ERROR == ac)
1.1 kristaps 1369: return(0);
1.36 schwarze 1370: if (ARGS_PUNCT == ac)
1.1 kristaps 1371: break;
1.36 schwarze 1372: if (ARGS_EOLN == ac)
1.1 kristaps 1373: break;
1374:
1.32 schwarze 1375: /* Flush out leading punctuation. */
1376:
1.36 schwarze 1377: if (NULL == head && ARGS_QWORD != ac &&
1.66 schwarze 1378: DELIM_OPEN == mdoc_isdelim(p)) {
1.32 schwarze 1379: assert(NULL == body);
1.66 schwarze 1380: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.32 schwarze 1381: return(0);
1382: continue;
1383: }
1384:
1385: if (NULL == head) {
1386: assert(NULL == body);
1387: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1388: return(0);
1.32 schwarze 1389: head = m->last;
1.1 kristaps 1390: }
1391:
1.32 schwarze 1392: /*
1393: * `Eo' gobbles any data into the head, but most other
1394: * macros just immediately close out and begin the body.
1395: */
1396:
1397: if (NULL == body) {
1398: assert(head);
1399: /* No check whether it's a macro! */
1400: if (MDOC_Eo == tok)
1.66 schwarze 1401: if ( ! dword(m, line, la, p, DELIM_MAX))
1.32 schwarze 1402: return(0);
1403:
1.22 schwarze 1404: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1405: return(0);
1.22 schwarze 1406: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1407: return(0);
1.32 schwarze 1408: body = m->last;
1409:
1410: if (MDOC_Eo == tok)
1411: continue;
1412: }
1413:
1414: assert(NULL != head && NULL != body);
1415:
1.36 schwarze 1416: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1417:
1418: if (MDOC_MAX == ntok) {
1.66 schwarze 1419: if ( ! dword(m, line, la, p, DELIM_MAX))
1.32 schwarze 1420: return(0);
1.36 schwarze 1421: continue;
1.1 kristaps 1422: }
1.32 schwarze 1423:
1.36 schwarze 1424: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1425: return(0);
1.36 schwarze 1426: break;
1.1 kristaps 1427: }
1428:
1.32 schwarze 1429: /* Clean-up to leave in a consistent state. */
1430:
1431: if (NULL == head) {
1432: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1433: return(0);
1434: head = m->last;
1435: }
1.22 schwarze 1436:
1.32 schwarze 1437: if (NULL == body) {
1.22 schwarze 1438: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1439: return(0);
1.22 schwarze 1440: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1441: return(0);
1.32 schwarze 1442: body = m->last;
1.1 kristaps 1443: }
1444:
1.22 schwarze 1445: /* Standard appending of delimiters. */
1446:
1.37 schwarze 1447: if ( ! nl)
1.1 kristaps 1448: return(1);
1.22 schwarze 1449: return(append_delims(m, line, pos, buf));
1.1 kristaps 1450: }
1451:
1452:
1.37 schwarze 1453: /* ARGSUSED */
1.1 kristaps 1454: static int
1455: in_line_argn(MACRO_PROT_ARGS)
1456: {
1.37 schwarze 1457: int la, flushed, j, maxargs, nl;
1.36 schwarze 1458: enum margserr ac;
1459: enum margverr av;
1460: struct mdoc_arg *arg;
1461: char *p;
1462: enum mdoct ntok;
1.1 kristaps 1463:
1.37 schwarze 1464: nl = MDOC_NEWLINE & m->flags;
1465:
1.32 schwarze 1466: /*
1467: * A line macro that has a fixed number of arguments (maxargs).
1468: * Only open the scope once the first non-leading-punctuation is
1469: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1470: * keep it open until the maximum number of arguments are
1471: * exhausted.
1472: */
1.1 kristaps 1473:
1474: switch (tok) {
1475: case (MDOC_Ap):
1476: /* FALLTHROUGH */
1477: case (MDOC_No):
1478: /* FALLTHROUGH */
1479: case (MDOC_Ns):
1480: /* FALLTHROUGH */
1481: case (MDOC_Ux):
1482: maxargs = 0;
1483: break;
1.64 schwarze 1484: case (MDOC_Bx):
1485: /* FALLTHROUGH */
1.28 schwarze 1486: case (MDOC_Xr):
1487: maxargs = 2;
1488: break;
1.1 kristaps 1489: default:
1490: maxargs = 1;
1491: break;
1492: }
1493:
1.32 schwarze 1494: for (arg = NULL; ; ) {
1.22 schwarze 1495: la = *pos;
1.36 schwarze 1496: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1497:
1.36 schwarze 1498: if (ARGV_WORD == av) {
1.22 schwarze 1499: *pos = la;
1.1 kristaps 1500: break;
1501: }
1502:
1.36 schwarze 1503: if (ARGV_EOLN == av)
1.1 kristaps 1504: break;
1.36 schwarze 1505: if (ARGV_ARG == av)
1.1 kristaps 1506: continue;
1507:
1508: mdoc_argv_free(arg);
1509: return(0);
1510: }
1511:
1.32 schwarze 1512: for (flushed = j = 0; ; ) {
1.22 schwarze 1513: la = *pos;
1.36 schwarze 1514: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1515:
1.36 schwarze 1516: if (ARGS_ERROR == ac)
1.1 kristaps 1517: return(0);
1.36 schwarze 1518: if (ARGS_PUNCT == ac)
1.1 kristaps 1519: break;
1.36 schwarze 1520: if (ARGS_EOLN == ac)
1.1 kristaps 1521: break;
1522:
1.32 schwarze 1523: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.66 schwarze 1524: ARGS_QWORD != ac && 0 == j &&
1525: DELIM_OPEN == mdoc_isdelim(p)) {
1526: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.32 schwarze 1527: return(0);
1528: continue;
1.40 schwarze 1529: } else if (0 == j)
1.32 schwarze 1530: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1531: return(0);
1532:
1533: if (j == maxargs && ! flushed) {
1534: if ( ! rew_elem(m, tok))
1535: return(0);
1536: flushed = 1;
1537: }
1538:
1.36 schwarze 1539: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1540:
1541: if (MDOC_MAX != ntok) {
1.22 schwarze 1542: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1543: return(0);
1544: flushed = 1;
1.36 schwarze 1545: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1546: return(0);
1.32 schwarze 1547: j++;
1.1 kristaps 1548: break;
1549: }
1550:
1551: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.36 schwarze 1552: ARGS_QWORD != ac &&
1.40 schwarze 1553: ! flushed &&
1.66 schwarze 1554: DELIM_NONE != mdoc_isdelim(p)) {
1.22 schwarze 1555: if ( ! rew_elem(m, tok))
1.1 kristaps 1556: return(0);
1557: flushed = 1;
1558: }
1.28 schwarze 1559:
1560: /*
1561: * XXX: this is a hack to work around groff's ugliness
1562: * as regards `Xr' and extraneous arguments. It should
1563: * ideally be deprecated behaviour, but because this is
1564: * code is no here, it's unlikely to be removed.
1565: */
1566: if (MDOC_Xr == tok && j == maxargs) {
1.32 schwarze 1567: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.28 schwarze 1568: return(0);
1569: if ( ! rew_elem(m, MDOC_Ns))
1570: return(0);
1571: }
1572:
1.66 schwarze 1573: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1574: return(0);
1.32 schwarze 1575: j++;
1.1 kristaps 1576: }
1577:
1.32 schwarze 1578: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1579: return(0);
1580:
1581: /* Close out in a consistent state. */
1.22 schwarze 1582:
1583: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1584: return(0);
1.37 schwarze 1585: if ( ! nl)
1.1 kristaps 1586: return(1);
1.22 schwarze 1587: return(append_delims(m, line, pos, buf));
1.1 kristaps 1588: }
1589:
1590:
1591: static int
1592: in_line_eoln(MACRO_PROT_ARGS)
1593: {
1.36 schwarze 1594: int la;
1595: enum margserr ac;
1596: enum margverr av;
1597: struct mdoc_arg *arg;
1598: char *p;
1599: enum mdoct ntok;
1.1 kristaps 1600:
1601: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1602:
1.53 schwarze 1603: if (tok == MDOC_Pp)
1604: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1605:
1.22 schwarze 1606: /* Parse macro arguments. */
1.1 kristaps 1607:
1.22 schwarze 1608: for (arg = NULL; ; ) {
1.1 kristaps 1609: la = *pos;
1.36 schwarze 1610: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1611:
1.36 schwarze 1612: if (ARGV_WORD == av) {
1.1 kristaps 1613: *pos = la;
1614: break;
1615: }
1.36 schwarze 1616: if (ARGV_EOLN == av)
1.1 kristaps 1617: break;
1.36 schwarze 1618: if (ARGV_ARG == av)
1.1 kristaps 1619: continue;
1620:
1621: mdoc_argv_free(arg);
1622: return(0);
1623: }
1624:
1.22 schwarze 1625: /* Open element scope. */
1626:
1627: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1628: return(0);
1629:
1.22 schwarze 1630: /* Parse argument terms. */
1.1 kristaps 1631:
1632: for (;;) {
1633: la = *pos;
1.36 schwarze 1634: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1635:
1.36 schwarze 1636: if (ARGS_ERROR == ac)
1.1 kristaps 1637: return(0);
1.36 schwarze 1638: if (ARGS_EOLN == ac)
1.1 kristaps 1639: break;
1640:
1.36 schwarze 1641: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1642:
1.36 schwarze 1643: if (MDOC_MAX == ntok) {
1.66 schwarze 1644: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1645: return(0);
1.36 schwarze 1646: continue;
1647: }
1.1 kristaps 1648:
1.36 schwarze 1649: if ( ! rew_elem(m, tok))
1.1 kristaps 1650: return(0);
1.36 schwarze 1651: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1652: }
1653:
1.22 schwarze 1654: /* Close out (no delimiters). */
1655:
1656: return(rew_elem(m, tok));
1.28 schwarze 1657: }
1658:
1659:
1660: /* ARGSUSED */
1661: static int
1662: ctx_synopsis(MACRO_PROT_ARGS)
1663: {
1.37 schwarze 1664: int nl;
1665:
1666: nl = MDOC_NEWLINE & m->flags;
1.28 schwarze 1667:
1668: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.53 schwarze 1669: if ( ! (MDOC_SYNOPSIS & m->flags))
1.28 schwarze 1670: return(in_line(m, tok, line, ppos, pos, buf));
1671:
1672: /* If we're a nested call, same place. */
1.37 schwarze 1673: if ( ! nl)
1.28 schwarze 1674: return(in_line(m, tok, line, ppos, pos, buf));
1675:
1676: /*
1677: * XXX: this will open a block scope; however, if later we end
1678: * up formatting the block scope, then child nodes will inherit
1679: * the formatting. Be careful.
1680: */
1.51 schwarze 1681: if (MDOC_Nm == tok)
1682: return(blk_full(m, tok, line, ppos, pos, buf));
1683: assert(MDOC_Vt == tok);
1.28 schwarze 1684: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.1 kristaps 1685: }
1686:
1687:
1688: /* ARGSUSED */
1689: static int
1690: obsolete(MACRO_PROT_ARGS)
1691: {
1692:
1.65 schwarze 1693: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS);
1694: return(1);
1.1 kristaps 1695: }
1696:
1697:
1.17 schwarze 1698: /*
1699: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1700: * They're unusual because they're basically free-form text until a
1701: * macro is encountered.
1702: */
1.1 kristaps 1703: static int
1.46 schwarze 1704: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1705: {
1.36 schwarze 1706: int la, pos;
1.46 schwarze 1707: enum margserr ac;
1.36 schwarze 1708: enum mdoct ntok;
1709: char *p;
1.1 kristaps 1710:
1.17 schwarze 1711: for (pos = ppos; ; ) {
1712: la = pos;
1.1 kristaps 1713:
1.68 ! schwarze 1714: ac = mdoc_zargs(m, line, &pos, buf, &p);
1.1 kristaps 1715:
1.46 schwarze 1716: if (ARGS_ERROR == ac)
1.17 schwarze 1717: return(0);
1.46 schwarze 1718: if (ARGS_EOLN == ac)
1.17 schwarze 1719: break;
1.1 kristaps 1720:
1.46 schwarze 1721: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1722:
1.36 schwarze 1723: if (MDOC_MAX == ntok) {
1.66 schwarze 1724: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1725: return(0);
1.36 schwarze 1726: continue;
1727: }
1.1 kristaps 1728:
1.36 schwarze 1729: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1730: return(0);
1.36 schwarze 1731: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1732: }
1733:
1734: return(1);
1735: }
1.17 schwarze 1736:
1737:
1.46 schwarze 1738: /* ARGSUSED */
1739: static int
1740: phrase_ta(MACRO_PROT_ARGS)
1741: {
1742: int la;
1743: enum mdoct ntok;
1744: enum margserr ac;
1745: char *p;
1746:
1747: /*
1748: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1749: * it should simply error out with ARGSLOST.
1750: */
1751:
1752: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1753: return(0);
1754: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1755: return(0);
1756:
1757: for (;;) {
1758: la = *pos;
1.68 ! schwarze 1759: ac = mdoc_zargs(m, line, pos, buf, &p);
1.46 schwarze 1760:
1761: if (ARGS_ERROR == ac)
1762: return(0);
1763: if (ARGS_EOLN == ac)
1764: break;
1765:
1766: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1767:
1768: if (MDOC_MAX == ntok) {
1.66 schwarze 1769: if ( ! dword(m, line, la, p, DELIM_MAX))
1.46 schwarze 1770: return(0);
1771: continue;
1772: }
1773:
1774: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1775: return(0);
1776: return(append_delims(m, line, pos, buf));
1777: }
1778:
1779: return(1);
1780: }
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