Annotation of mandoc/mdoc_macro.c, Revision 1.105
1.105 ! kristaps 1: /* $Id: mdoc_macro.c,v 1.104 2011/03/20 16:02:05 kristaps Exp $ */
1.1 kristaps 2: /*
1.92 schwarze 3: * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
4: * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.8 kristaps 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.40 kristaps 18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.1 kristaps 22: #include <assert.h>
23: #include <ctype.h>
24: #include <stdlib.h>
25: #include <stdio.h>
26: #include <string.h>
1.38 kristaps 27: #include <time.h>
1.1 kristaps 28:
1.68 kristaps 29: #include "mandoc.h"
1.1 kristaps 30: #include "libmdoc.h"
1.64 kristaps 31: #include "libmandoc.h"
1.1 kristaps 32:
1.84 schwarze 33: enum rew { /* see rew_dohalt() */
34: REWIND_NONE,
35: REWIND_THIS,
36: REWIND_MORE,
1.98 kristaps 37: REWIND_FORCE,
1.84 schwarze 38: REWIND_LATER,
1.91 kristaps 39: REWIND_ERROR
1.51 kristaps 40: };
1.1 kristaps 41:
1.53 kristaps 42: static int blk_full(MACRO_PROT_ARGS);
43: static int blk_exp_close(MACRO_PROT_ARGS);
44: static int blk_part_exp(MACRO_PROT_ARGS);
45: static int blk_part_imp(MACRO_PROT_ARGS);
46: static int ctx_synopsis(MACRO_PROT_ARGS);
47: static int in_line_eoln(MACRO_PROT_ARGS);
48: static int in_line_argn(MACRO_PROT_ARGS);
49: static int in_line(MACRO_PROT_ARGS);
50: static int obsolete(MACRO_PROT_ARGS);
1.75 kristaps 51: static int phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 52:
1.105 ! kristaps 53: static int dword(struct mdoc *, int, int,
! 54: const char *, enum mdelim);
1.53 kristaps 55: static int append_delims(struct mdoc *,
56: int, int *, char *);
1.58 kristaps 57: static enum mdoct lookup(enum mdoct, const char *);
1.53 kristaps 58: static enum mdoct lookup_raw(const char *);
1.85 schwarze 59: static int make_pending(struct mdoc_node *, enum mdoct,
1.83 schwarze 60: struct mdoc *, int, int);
1.82 kristaps 61: static int phrase(struct mdoc *, int, int, char *);
1.53 kristaps 62: static enum mdoct rew_alt(enum mdoct);
63: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
64: const struct mdoc_node *);
65: static int rew_elem(struct mdoc *, enum mdoct);
66: static int rew_last(struct mdoc *,
67: const struct mdoc_node *);
68: static int rew_sub(enum mdoc_type, struct mdoc *,
69: enum mdoct, int, int);
1.1 kristaps 70:
71: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.13 kristaps 72: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
1.1 kristaps 73: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
74: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
75: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
76: { blk_full, 0 }, /* Sh */
77: { blk_full, 0 }, /* Ss */
1.21 kristaps 78: { in_line_eoln, 0 }, /* Pp */
1.1 kristaps 79: { blk_part_imp, MDOC_PARSED }, /* D1 */
80: { blk_part_imp, MDOC_PARSED }, /* Dl */
81: { blk_full, MDOC_EXPLICIT }, /* Bd */
82: { blk_exp_close, MDOC_EXPLICIT }, /* Ed */
83: { blk_full, MDOC_EXPLICIT }, /* Bl */
84: { blk_exp_close, MDOC_EXPLICIT }, /* El */
85: { blk_full, MDOC_PARSED }, /* It */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.10 kristaps 87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.23 kristaps 89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
1.1 kristaps 90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
94: { in_line_eoln, 0 }, /* Ex */
95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
96: { in_line_eoln, 0 }, /* Fd */
97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
1.11 kristaps 99: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 100: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.18 kristaps 101: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 102: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.19 kristaps 103: { blk_full, 0 }, /* Nd */
1.88 schwarze 104: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 105: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
106: { obsolete, 0 }, /* Ot */
107: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
108: { in_line_eoln, 0 }, /* Rv */
109: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
110: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.41 kristaps 111: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 112: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.1 kristaps 113: { in_line_eoln, 0 }, /* %A */
114: { in_line_eoln, 0 }, /* %B */
115: { in_line_eoln, 0 }, /* %D */
116: { in_line_eoln, 0 }, /* %I */
117: { in_line_eoln, 0 }, /* %J */
118: { in_line_eoln, 0 }, /* %N */
119: { in_line_eoln, 0 }, /* %O */
120: { in_line_eoln, 0 }, /* %P */
121: { in_line_eoln, 0 }, /* %R */
122: { in_line_eoln, 0 }, /* %T */
123: { in_line_eoln, 0 }, /* %V */
124: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
125: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
126: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
127: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
128: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
129: { blk_full, MDOC_EXPLICIT }, /* Bf */
130: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
131: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
132: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
133: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
134: { in_line_eoln, 0 }, /* Db */
135: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
136: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
137: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
138: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
139: { blk_exp_close, MDOC_EXPLICIT }, /* Ef */
140: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
141: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 143: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.95 schwarze 144: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* No */
145: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Ns */
1.1 kristaps 146: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
147: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
148: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.52 kristaps 149: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.1 kristaps 150: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
151: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
152: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
153: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
154: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
155: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
156: { blk_exp_close, MDOC_EXPLICIT }, /* Re */
157: { blk_full, MDOC_EXPLICIT }, /* Rs */
158: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
159: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
160: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
161: { in_line_eoln, 0 }, /* Sm */
162: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
163: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
164: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
165: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
166: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
167: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
168: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
169: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
170: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
171: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
172: { blk_full, MDOC_EXPLICIT }, /* Bk */
173: { blk_exp_close, MDOC_EXPLICIT }, /* Ek */
174: { in_line_eoln, 0 }, /* Bt */
175: { in_line_eoln, 0 }, /* Hf */
176: { obsolete, 0 }, /* Fr */
177: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 178: { in_line, 0 }, /* Lb */
1.21 kristaps 179: { in_line_eoln, 0 }, /* Lp */
1.12 kristaps 180: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
181: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
1.1 kristaps 182: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
183: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
184: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
185: { in_line_eoln, 0 }, /* %C */
186: { obsolete, 0 }, /* Es */
187: { obsolete, 0 }, /* En */
188: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
189: { in_line_eoln, 0 }, /* %Q */
1.20 kristaps 190: { in_line_eoln, 0 }, /* br */
191: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 192: { in_line_eoln, 0 }, /* %U */
1.75 kristaps 193: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
1.1 kristaps 194: };
195:
196: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
197:
198:
199: /*
200: * This is called at the end of parsing. It must traverse up the tree,
201: * closing out open [implicit] scopes. Obviously, open explicit scopes
202: * are errors.
203: */
204: int
1.32 kristaps 205: mdoc_macroend(struct mdoc *m)
1.1 kristaps 206: {
207: struct mdoc_node *n;
208:
209: /* Scan for open explicit scopes. */
210:
1.32 kristaps 211: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 212:
1.94 schwarze 213: for ( ; n; n = n->parent)
214: if (MDOC_BLOCK == n->type &&
215: MDOC_EXPLICIT & mdoc_macros[n->tok].flags)
216: mdoc_nmsg(m, n, MANDOCERR_SCOPEEXIT);
1.1 kristaps 217:
1.32 kristaps 218: /* Rewind to the first. */
219:
220: return(rew_last(m, m->first));
1.1 kristaps 221: }
222:
1.32 kristaps 223:
224: /*
225: * Look up a macro from within a subsequent context.
226: */
1.53 kristaps 227: static enum mdoct
1.58 kristaps 228: lookup(enum mdoct from, const char *p)
1.28 kristaps 229: {
1.36 kristaps 230: /* FIXME: make -diag lists be un-PARSED. */
1.28 kristaps 231:
232: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
233: return(MDOC_MAX);
1.35 kristaps 234: return(lookup_raw(p));
1.28 kristaps 235: }
236:
237:
1.32 kristaps 238: /*
239: * Lookup a macro following the initial line macro.
240: */
1.53 kristaps 241: static enum mdoct
1.35 kristaps 242: lookup_raw(const char *p)
1.1 kristaps 243: {
1.58 kristaps 244: enum mdoct res;
1.1 kristaps 245:
1.34 kristaps 246: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.28 kristaps 247: return(MDOC_MAX);
248: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 249: return(res);
250: return(MDOC_MAX);
251: }
252:
253:
254: static int
1.32 kristaps 255: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 256: {
1.100 kristaps 257: struct mdoc_node *n, *np;
1.1 kristaps 258:
259: assert(to);
260: mdoc->next = MDOC_NEXT_SIBLING;
261:
262: /* LINTED */
263: while (mdoc->last != to) {
1.100 kristaps 264: /*
265: * Save the parent here, because we may delete the
266: * m->last node in the post-validation phase and reset
267: * it to m->last->parent, causing a step in the closing
268: * out to be lost.
269: */
270: np = mdoc->last->parent;
1.1 kristaps 271: if ( ! mdoc_valid_post(mdoc))
272: return(0);
1.99 kristaps 273: n = mdoc->last;
1.100 kristaps 274: mdoc->last = np;
1.1 kristaps 275: assert(mdoc->last);
1.99 kristaps 276: mdoc->last->last = n;
1.1 kristaps 277: }
278:
1.97 kristaps 279: return(mdoc_valid_post(mdoc));
1.1 kristaps 280: }
281:
282:
1.32 kristaps 283: /*
1.84 schwarze 284: * For a block closing macro, return the corresponding opening one.
285: * Otherwise, return the macro itself.
1.32 kristaps 286: */
1.47 kristaps 287: static enum mdoct
288: rew_alt(enum mdoct tok)
1.1 kristaps 289: {
290: switch (tok) {
291: case (MDOC_Ac):
292: return(MDOC_Ao);
293: case (MDOC_Bc):
294: return(MDOC_Bo);
295: case (MDOC_Brc):
296: return(MDOC_Bro);
297: case (MDOC_Dc):
298: return(MDOC_Do);
299: case (MDOC_Ec):
300: return(MDOC_Eo);
301: case (MDOC_Ed):
302: return(MDOC_Bd);
303: case (MDOC_Ef):
304: return(MDOC_Bf);
305: case (MDOC_Ek):
306: return(MDOC_Bk);
307: case (MDOC_El):
308: return(MDOC_Bl);
309: case (MDOC_Fc):
310: return(MDOC_Fo);
311: case (MDOC_Oc):
312: return(MDOC_Oo);
313: case (MDOC_Pc):
314: return(MDOC_Po);
315: case (MDOC_Qc):
316: return(MDOC_Qo);
317: case (MDOC_Re):
318: return(MDOC_Rs);
319: case (MDOC_Sc):
320: return(MDOC_So);
321: case (MDOC_Xc):
322: return(MDOC_Xo);
323: default:
1.84 schwarze 324: return(tok);
1.1 kristaps 325: }
326: /* NOTREACHED */
327: }
328:
329:
1.84 schwarze 330: /*
331: * Rewinding to tok, how do we have to handle *p?
332: * REWIND_NONE: *p would delimit tok, but no tok scope is open
333: * inside *p, so there is no need to rewind anything at all.
334: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
335: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.98 kristaps 336: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.84 schwarze 337: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
338: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 339: */
1.51 kristaps 340: static enum rew
1.47 kristaps 341: rew_dohalt(enum mdoct tok, enum mdoc_type type,
342: const struct mdoc_node *p)
1.1 kristaps 343: {
344:
1.86 schwarze 345: /*
346: * No matching token, no delimiting block, no broken block.
347: * This can happen when full implicit macros are called for
348: * the first time but try to rewind their previous
349: * instance anyway.
350: */
1.1 kristaps 351: if (MDOC_ROOT == p->type)
1.84 schwarze 352: return(MDOC_BLOCK == type &&
353: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
354: REWIND_ERROR : REWIND_NONE);
1.86 schwarze 355:
356: /*
357: * When starting to rewind, skip plain text
358: * and nodes that have already been rewound.
359: */
1.84 schwarze 360: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
361: return(REWIND_MORE);
362:
1.86 schwarze 363: /*
364: * The easiest case: Found a matching token.
365: * This applies to both blocks and elements.
366: */
1.84 schwarze 367: tok = rew_alt(tok);
368: if (tok == p->tok)
369: return(p->end ? REWIND_NONE :
370: type == p->type ? REWIND_THIS : REWIND_MORE);
371:
1.86 schwarze 372: /*
373: * While elements do require rewinding for themselves,
374: * they never affect rewinding of other nodes.
375: */
1.84 schwarze 376: if (MDOC_ELEM == p->type)
377: return(REWIND_MORE);
1.1 kristaps 378:
1.86 schwarze 379: /*
380: * Blocks delimited by our target token get REWIND_MORE.
381: * Blocks delimiting our target token get REWIND_NONE.
382: */
1.1 kristaps 383: switch (tok) {
1.84 schwarze 384: case (MDOC_Bl):
385: if (MDOC_It == p->tok)
386: return(REWIND_MORE);
1.1 kristaps 387: break;
388: case (MDOC_It):
389: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.84 schwarze 390: return(REWIND_NONE);
1.1 kristaps 391: break;
1.84 schwarze 392: /*
393: * XXX Badly nested block handling still fails badly
394: * when one block is breaking two blocks of the same type.
395: * This is an incomplete and extremely ugly workaround,
396: * required to let the OpenBSD tree build.
397: */
398: case (MDOC_Oo):
399: if (MDOC_Op == p->tok)
400: return(REWIND_MORE);
1.1 kristaps 401: break;
1.88 schwarze 402: case (MDOC_Nm):
403: return(REWIND_NONE);
1.19 kristaps 404: case (MDOC_Nd):
405: /* FALLTHROUGH */
1.1 kristaps 406: case (MDOC_Ss):
407: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.84 schwarze 408: return(REWIND_NONE);
1.1 kristaps 409: /* FALLTHROUGH */
410: case (MDOC_Sh):
1.84 schwarze 411: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
412: MDOC_Sh == p->tok)
413: return(REWIND_MORE);
1.1 kristaps 414: break;
415: default:
416: break;
417: }
418:
1.86 schwarze 419: /*
420: * Default block rewinding rules.
1.88 schwarze 421: * In particular, always skip block end markers,
422: * and let all blocks rewind Nm children.
1.86 schwarze 423: */
1.88 schwarze 424: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
425: (MDOC_BLOCK == p->type &&
1.86 schwarze 426: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
427: return(REWIND_MORE);
428:
429: /*
1.98 kristaps 430: * By default, closing out full blocks
431: * forces closing of broken explicit blocks,
432: * while closing out partial blocks
433: * allows delayed rewinding by default.
1.86 schwarze 434: */
1.98 kristaps 435: return (&blk_full == mdoc_macros[tok].fp ?
436: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 437: }
438:
439:
440: static int
1.47 kristaps 441: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 442: {
443: struct mdoc_node *n;
444:
445: n = mdoc->last;
446: if (MDOC_ELEM != n->type)
447: n = n->parent;
448: assert(MDOC_ELEM == n->type);
449: assert(tok == n->tok);
450:
451: return(rew_last(mdoc, n));
452: }
453:
454:
1.83 schwarze 455: /*
456: * We are trying to close a block identified by tok,
457: * but the child block *broken is still open.
458: * Thus, postpone closing the tok block
459: * until the rew_sub call closing *broken.
460: */
461: static int
462: make_pending(struct mdoc_node *broken, enum mdoct tok,
463: struct mdoc *m, int line, int ppos)
464: {
465: struct mdoc_node *breaker;
466:
467: /*
468: * Iterate backwards, searching for the block matching tok,
469: * that is, the block breaking the *broken block.
470: */
471: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
472:
473: /*
474: * If the *broken block had already been broken before
475: * and we encounter its breaker, make the tok block
476: * pending on the inner breaker.
477: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
478: * becomes "[A broken=[B [C->B B] tok=A] C]"
479: * and finally "[A [B->A [C->B B] A] C]".
480: */
481: if (breaker == broken->pending) {
482: broken = breaker;
483: continue;
484: }
485:
1.84 schwarze 486: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.83 schwarze 487: continue;
488: if (MDOC_BODY == broken->type)
489: broken = broken->parent;
490:
491: /*
492: * Found the breaker.
493: * If another, outer breaker is already pending on
494: * the *broken block, we must not clobber the link
495: * to the outer breaker, but make it pending on the
496: * new, now inner breaker.
497: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
498: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
499: * and finally "[A [B->A [C->B A] B] C]".
500: */
501: if (broken->pending) {
502: struct mdoc_node *taker;
503:
504: /*
505: * If the breaker had also been broken before,
506: * it cannot take on the outer breaker itself,
507: * but must hand it on to its own breakers.
508: * Graphically, this is the following situation:
509: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
510: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
511: */
512: taker = breaker;
513: while (taker->pending)
514: taker = taker->pending;
515: taker->pending = broken->pending;
516: }
517: broken->pending = breaker;
1.104 kristaps 518: mandoc_vmsg(MANDOCERR_SCOPENEST, m->parse, line, ppos,
519: "%s breaks %s", mdoc_macronames[tok],
520: mdoc_macronames[broken->tok]);
1.83 schwarze 521: return(1);
522: }
523:
524: /*
525: * Found no matching block for tok.
526: * Are you trying to close a block that is not open?
527: */
528: return(0);
529: }
530:
1.84 schwarze 531:
1.1 kristaps 532: static int
1.32 kristaps 533: rew_sub(enum mdoc_type t, struct mdoc *m,
1.47 kristaps 534: enum mdoct tok, int line, int ppos)
1.1 kristaps 535: {
536: struct mdoc_node *n;
537:
1.84 schwarze 538: n = m->last;
539: while (n) {
540: switch (rew_dohalt(tok, t, n)) {
541: case (REWIND_NONE):
542: return(1);
543: case (REWIND_THIS):
544: break;
1.98 kristaps 545: case (REWIND_FORCE):
1.104 kristaps 546: mandoc_vmsg(MANDOCERR_SCOPEBROKEN, m->parse,
547: line, ppos, "%s breaks %s",
548: mdoc_macronames[tok],
549: mdoc_macronames[n->tok]);
1.98 kristaps 550: /* FALLTHROUGH */
1.84 schwarze 551: case (REWIND_MORE):
552: n = n->parent;
553: continue;
554: case (REWIND_LATER):
1.98 kristaps 555: if (make_pending(n, tok, m, line, ppos) ||
556: MDOC_BLOCK != t)
557: return(1);
558: /* FALLTHROUGH */
1.84 schwarze 559: case (REWIND_ERROR):
1.98 kristaps 560: mdoc_pmsg(m, line, ppos, MANDOCERR_NOSCOPE);
561: return(1);
1.32 kristaps 562: }
1.84 schwarze 563: break;
1.1 kristaps 564: }
565:
566: assert(n);
1.47 kristaps 567: if ( ! rew_last(m, n))
568: return(0);
569:
570: /*
1.83 schwarze 571: * The current block extends an enclosing block.
572: * Now that the current block ends, close the enclosing block, too.
1.47 kristaps 573: */
1.83 schwarze 574: while (NULL != (n = n->pending)) {
1.47 kristaps 575: if ( ! rew_last(m, n))
576: return(0);
1.83 schwarze 577: if (MDOC_HEAD == n->type &&
578: ! mdoc_body_alloc(m, n->line, n->pos, n->tok))
1.47 kristaps 579: return(0);
580: }
581:
582: return(1);
1.1 kristaps 583: }
584:
1.105 ! kristaps 585: /*
! 586: * Allocate a word and check whether it's punctuation or not.
! 587: * Punctuation consists of those tokens found in mdoc_isdelim().
! 588: */
! 589: static int
! 590: dword(struct mdoc *m, int line,
! 591: int col, const char *p, enum mdelim d)
! 592: {
! 593:
! 594: if (DELIM_MAX == d)
! 595: d = mdoc_isdelim(p);
! 596:
! 597: if ( ! mdoc_word_alloc(m, line, col, p))
! 598: return(0);
! 599:
! 600: if (DELIM_OPEN == d)
! 601: m->last->flags |= MDOC_DELIMO;
! 602: else if (DELIM_CLOSE == d)
! 603: m->last->flags |= MDOC_DELIMC;
! 604:
! 605: return(1);
! 606: }
1.1 kristaps 607:
608: static int
1.66 kristaps 609: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 610: {
1.66 kristaps 611: int la;
1.55 kristaps 612: enum margserr ac;
1.1 kristaps 613: char *p;
614:
1.66 kristaps 615: if ('\0' == buf[*pos])
1.1 kristaps 616: return(1);
617:
618: for (;;) {
1.66 kristaps 619: la = *pos;
620: ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p);
1.1 kristaps 621:
1.53 kristaps 622: if (ARGS_ERROR == ac)
1.1 kristaps 623: return(0);
1.53 kristaps 624: else if (ARGS_EOLN == ac)
1.1 kristaps 625: break;
1.66 kristaps 626:
1.105 ! kristaps 627: dword(m, line, la, p, DELIM_MAX);
1.66 kristaps 628:
629: /*
630: * If we encounter end-of-sentence symbols, then trigger
631: * the double-space.
632: *
633: * XXX: it's easy to allow this to propogate outward to
634: * the last symbol, such that `. )' will cause the
635: * correct double-spacing. However, (1) groff isn't
636: * smart enough to do this and (2) it would require
637: * knowing which symbols break this behaviour, for
638: * example, `. ;' shouldn't propogate the double-space.
639: */
1.93 schwarze 640: if (mandoc_eos(p, strlen(p), 0))
1.66 kristaps 641: m->last->flags |= MDOC_EOS;
1.1 kristaps 642: }
643:
644: return(1);
645: }
646:
647:
648: /*
649: * Close out block partial/full explicit.
650: */
651: static int
652: blk_exp_close(MACRO_PROT_ARGS)
653: {
1.83 schwarze 654: struct mdoc_node *body; /* Our own body. */
655: struct mdoc_node *later; /* A sub-block starting later. */
656: struct mdoc_node *n; /* For searching backwards. */
657:
1.60 kristaps 658: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 659: enum margserr ac;
1.83 schwarze 660: enum mdoct atok, ntok;
1.1 kristaps 661: char *p;
662:
1.60 kristaps 663: nl = MDOC_NEWLINE & m->flags;
664:
1.1 kristaps 665: switch (tok) {
666: case (MDOC_Ec):
667: maxargs = 1;
668: break;
669: default:
670: maxargs = 0;
671: break;
672: }
673:
1.83 schwarze 674: /*
675: * Search backwards for beginnings of blocks,
676: * both of our own and of pending sub-blocks.
677: */
678: atok = rew_alt(tok);
679: body = later = NULL;
680: for (n = m->last; n; n = n->parent) {
681: if (MDOC_VALID & n->flags)
682: continue;
683:
684: /* Remember the start of our own body. */
685: if (MDOC_BODY == n->type && atok == n->tok) {
1.87 kristaps 686: if (ENDBODY_NOT == n->end)
1.83 schwarze 687: body = n;
688: continue;
689: }
690:
1.88 schwarze 691: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.83 schwarze 692: continue;
693: if (atok == n->tok) {
694: assert(body);
695:
696: /*
697: * Found the start of our own block.
698: * When there is no pending sub block,
699: * just proceed to closing out.
700: */
701: if (NULL == later)
702: break;
703:
704: /*
705: * When there is a pending sub block,
706: * postpone closing out the current block
707: * until the rew_sub() closing out the sub-block.
708: */
1.98 kristaps 709: make_pending(later, tok, m, line, ppos);
1.83 schwarze 710:
711: /*
712: * Mark the place where the formatting - but not
713: * the scope - of the current block ends.
714: */
715: if ( ! mdoc_endbody_alloc(m, line, ppos,
716: atok, body, ENDBODY_SPACE))
717: return(0);
718: break;
719: }
720:
721: /*
722: * When finding an open sub block, remember the last
723: * open explicit block, or, in case there are only
724: * implicit ones, the first open implicit block.
725: */
726: if (later &&
727: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
728: continue;
1.97 kristaps 729: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags)
1.83 schwarze 730: later = n;
731: }
732:
1.1 kristaps 733: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.68 kristaps 734: /* FIXME: do this in validate */
1.22 kristaps 735: if (buf[*pos])
1.103 kristaps 736: mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST);
1.22 kristaps 737:
1.32 kristaps 738: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 kristaps 739: return(0);
1.32 kristaps 740: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 741: }
742:
1.32 kristaps 743: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 744: return(0);
745:
1.83 schwarze 746: if (NULL == later && maxargs > 0)
1.32 kristaps 747: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 748: return(0);
749:
1.27 kristaps 750: for (flushed = j = 0; ; j++) {
1.1 kristaps 751: lastarg = *pos;
752:
753: if (j == maxargs && ! flushed) {
1.32 kristaps 754: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 755: return(0);
756: flushed = 1;
757: }
758:
1.53 kristaps 759: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 760:
1.53 kristaps 761: if (ARGS_ERROR == ac)
1.1 kristaps 762: return(0);
1.53 kristaps 763: if (ARGS_PUNCT == ac)
1.1 kristaps 764: break;
1.53 kristaps 765: if (ARGS_EOLN == ac)
1.1 kristaps 766: break;
767:
1.54 kristaps 768: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
769:
770: if (MDOC_MAX == ntok) {
1.105 ! kristaps 771: if ( ! dword(m, line, lastarg, p, DELIM_MAX))
1.1 kristaps 772: return(0);
1.54 kristaps 773: continue;
774: }
1.1 kristaps 775:
1.54 kristaps 776: if ( ! flushed) {
777: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
778: return(0);
779: flushed = 1;
780: }
1.82 kristaps 781: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 782: return(0);
1.54 kristaps 783: break;
1.1 kristaps 784: }
785:
1.32 kristaps 786: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 787: return(0);
788:
1.60 kristaps 789: if ( ! nl)
1.1 kristaps 790: return(1);
1.32 kristaps 791: return(append_delims(m, line, pos, buf));
1.1 kristaps 792: }
793:
794:
795: static int
796: in_line(MACRO_PROT_ARGS)
797: {
1.70 kristaps 798: int la, scope, cnt, nc, nl;
1.56 kristaps 799: enum margverr av;
1.53 kristaps 800: enum mdoct ntok;
1.55 kristaps 801: enum margserr ac;
1.67 schwarze 802: enum mdelim d;
1.53 kristaps 803: struct mdoc_arg *arg;
804: char *p;
1.1 kristaps 805:
1.60 kristaps 806: nl = MDOC_NEWLINE & m->flags;
807:
1.4 kristaps 808: /*
809: * Whether we allow ignored elements (those without content,
810: * usually because of reserved words) to squeak by.
811: */
1.45 kristaps 812:
1.4 kristaps 813: switch (tok) {
1.26 kristaps 814: case (MDOC_An):
815: /* FALLTHROUGH */
816: case (MDOC_Ar):
1.4 kristaps 817: /* FALLTHROUGH */
818: case (MDOC_Fl):
819: /* FALLTHROUGH */
1.96 kristaps 820: case (MDOC_Mt):
1.12 kristaps 821: /* FALLTHROUGH */
1.26 kristaps 822: case (MDOC_Nm):
823: /* FALLTHROUGH */
1.25 kristaps 824: case (MDOC_Pa):
1.4 kristaps 825: nc = 1;
826: break;
827: default:
828: nc = 0;
829: break;
830: }
831:
1.27 kristaps 832: for (arg = NULL;; ) {
1.1 kristaps 833: la = *pos;
1.56 kristaps 834: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 835:
1.56 kristaps 836: if (ARGV_WORD == av) {
1.1 kristaps 837: *pos = la;
838: break;
839: }
1.56 kristaps 840: if (ARGV_EOLN == av)
1.1 kristaps 841: break;
1.56 kristaps 842: if (ARGV_ARG == av)
1.1 kristaps 843: continue;
844:
845: mdoc_argv_free(arg);
846: return(0);
847: }
848:
1.70 kristaps 849: for (cnt = scope = 0;; ) {
1.1 kristaps 850: la = *pos;
1.53 kristaps 851: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 852:
1.53 kristaps 853: if (ARGS_ERROR == ac)
1.1 kristaps 854: return(0);
1.53 kristaps 855: if (ARGS_EOLN == ac)
1.1 kristaps 856: break;
1.53 kristaps 857: if (ARGS_PUNCT == ac)
1.1 kristaps 858: break;
859:
1.53 kristaps 860: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 861:
1.4 kristaps 862: /*
863: * In this case, we've located a submacro and must
864: * execute it. Close out scope, if open. If no
865: * elements have been generated, either create one (nc)
866: * or raise a warning.
867: */
1.1 kristaps 868:
1.53 kristaps 869: if (MDOC_MAX != ntok) {
1.70 kristaps 870: if (scope && ! rew_elem(m, tok))
1.1 kristaps 871: return(0);
1.4 kristaps 872: if (nc && 0 == cnt) {
1.32 kristaps 873: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 874: return(0);
1.32 kristaps 875: if ( ! rew_last(m, m->last))
1.12 kristaps 876: return(0);
1.7 kristaps 877: } else if ( ! nc && 0 == cnt) {
878: mdoc_argv_free(arg);
1.103 kristaps 879: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
1.7 kristaps 880: }
1.103 kristaps 881:
1.82 kristaps 882: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 883: return(0);
1.60 kristaps 884: if ( ! nl)
1.1 kristaps 885: return(1);
1.32 kristaps 886: return(append_delims(m, line, pos, buf));
1.29 kristaps 887: }
1.1 kristaps 888:
1.4 kristaps 889: /*
890: * Non-quote-enclosed punctuation. Set up our scope, if
891: * a word; rewind the scope, if a delimiter; then append
892: * the word.
893: */
1.1 kristaps 894:
1.105 ! kristaps 895: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 896:
1.70 kristaps 897: if (DELIM_NONE != d) {
898: /*
899: * If we encounter closing punctuation, no word
900: * has been omitted, no scope is open, and we're
901: * allowed to have an empty element, then start
902: * a new scope. `Ar', `Fl', and `Li', only do
903: * this once per invocation. There may be more
904: * of these (all of them?).
905: */
906: if (0 == cnt && (nc || MDOC_Li == tok) &&
907: DELIM_CLOSE == d && ! scope) {
908: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
909: return(0);
910: if (MDOC_Ar == tok || MDOC_Li == tok ||
911: MDOC_Fl == tok)
912: cnt++;
913: scope = 1;
914: }
915: /*
916: * Close out our scope, if one is open, before
917: * any punctuation.
918: */
919: if (scope && ! rew_elem(m, tok))
1.1 kristaps 920: return(0);
1.70 kristaps 921: scope = 0;
922: } else if ( ! scope) {
1.32 kristaps 923: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 924: return(0);
1.70 kristaps 925: scope = 1;
1.1 kristaps 926: }
927:
1.67 schwarze 928: if (DELIM_NONE == d)
1.3 kristaps 929: cnt++;
1.105 ! kristaps 930:
! 931: if ( ! dword(m, line, la, p, d))
1.1 kristaps 932: return(0);
1.39 kristaps 933:
934: /*
935: * `Fl' macros have their scope re-opened with each new
936: * word so that the `-' can be added to each one without
937: * having to parse out spaces.
938: */
1.70 kristaps 939: if (scope && MDOC_Fl == tok) {
1.39 kristaps 940: if ( ! rew_elem(m, tok))
941: return(0);
1.70 kristaps 942: scope = 0;
1.39 kristaps 943: }
1.1 kristaps 944: }
945:
1.70 kristaps 946: if (scope && ! rew_elem(m, tok))
1.1 kristaps 947: return(0);
1.4 kristaps 948:
949: /*
950: * If no elements have been collected and we're allowed to have
951: * empties (nc), open a scope and close it out. Otherwise,
952: * raise a warning.
953: */
1.45 kristaps 954:
1.4 kristaps 955: if (nc && 0 == cnt) {
1.32 kristaps 956: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 957: return(0);
1.32 kristaps 958: if ( ! rew_last(m, m->last))
1.12 kristaps 959: return(0);
1.7 kristaps 960: } else if ( ! nc && 0 == cnt) {
961: mdoc_argv_free(arg);
1.103 kristaps 962: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
1.7 kristaps 963: }
1.4 kristaps 964:
1.60 kristaps 965: if ( ! nl)
1.1 kristaps 966: return(1);
1.32 kristaps 967: return(append_delims(m, line, pos, buf));
1.1 kristaps 968: }
969:
970:
971: static int
972: blk_full(MACRO_PROT_ARGS)
973: {
1.63 kristaps 974: int la, nl;
1.1 kristaps 975: struct mdoc_arg *arg;
1.45 kristaps 976: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 977: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 978: struct mdoc_node *n;
1.74 kristaps 979: enum mdoc_type mtt;
1.53 kristaps 980: enum mdoct ntok;
1.59 kristaps 981: enum margserr ac, lac;
1.56 kristaps 982: enum margverr av;
1.1 kristaps 983: char *p;
984:
1.63 kristaps 985: nl = MDOC_NEWLINE & m->flags;
986:
1.45 kristaps 987: /* Close out prior implicit scope. */
1.19 kristaps 988:
1.1 kristaps 989: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.32 kristaps 990: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 991: return(0);
1.32 kristaps 992: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 993: return(0);
994: }
995:
1.45 kristaps 996: /*
997: * This routine accomodates implicitly- and explicitly-scoped
998: * macro openings. Implicit ones first close out prior scope
999: * (seen above). Delay opening the head until necessary to
1000: * allow leading punctuation to print. Special consideration
1001: * for `It -column', which has phrase-part syntax instead of
1002: * regular child nodes.
1003: */
1004:
1.1 kristaps 1005: for (arg = NULL;; ) {
1.45 kristaps 1006: la = *pos;
1.56 kristaps 1007: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1008:
1.56 kristaps 1009: if (ARGV_WORD == av) {
1.45 kristaps 1010: *pos = la;
1.1 kristaps 1011: break;
1012: }
1013:
1.56 kristaps 1014: if (ARGV_EOLN == av)
1.1 kristaps 1015: break;
1.56 kristaps 1016: if (ARGV_ARG == av)
1.1 kristaps 1017: continue;
1018:
1019: mdoc_argv_free(arg);
1020: return(0);
1021: }
1022:
1.32 kristaps 1023: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1024: return(0);
1025:
1.49 kristaps 1026: head = body = NULL;
1.1 kristaps 1027:
1.45 kristaps 1028: /*
1029: * The `Nd' macro has all arguments in its body: it's a hybrid
1030: * of block partial-explicit and full-implicit. Stupid.
1031: */
1.19 kristaps 1032:
1.45 kristaps 1033: if (MDOC_Nd == tok) {
1034: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1035: return(0);
1036: head = m->last;
1.32 kristaps 1037: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.19 kristaps 1038: return(0);
1.32 kristaps 1039: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.19 kristaps 1040: return(0);
1.49 kristaps 1041: body = m->last;
1.19 kristaps 1042: }
1043:
1.59 kristaps 1044: ac = ARGS_ERROR;
1045:
1.62 kristaps 1046: for ( ; ; ) {
1.45 kristaps 1047: la = *pos;
1.75 kristaps 1048: /* Initialise last-phrase-type with ARGS_PEND. */
1049: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.53 kristaps 1050: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.89 schwarze 1051:
1052: if (ARGS_PUNCT == ac)
1053: break;
1.1 kristaps 1054:
1.53 kristaps 1055: if (ARGS_ERROR == ac)
1.1 kristaps 1056: return(0);
1.75 kristaps 1057:
1058: if (ARGS_EOLN == ac) {
1059: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1060: break;
1061: /*
1062: * This is necessary: if the last token on a
1063: * line is a `Ta' or tab, then we'll get
1064: * ARGS_EOLN, so we must be smart enough to
1065: * reopen our scope if the last parse was a
1066: * phrase or partial phrase.
1067: */
1068: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1069: return(0);
1070: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1071: return(0);
1072: body = m->last;
1.1 kristaps 1073: break;
1.75 kristaps 1074: }
1.45 kristaps 1075:
1.73 kristaps 1076: /*
1077: * Emit leading punctuation (i.e., punctuation before
1078: * the MDOC_HEAD) for non-phrase types.
1079: */
1.45 kristaps 1080:
1.59 kristaps 1081: if (NULL == head &&
1.71 kristaps 1082: ARGS_PEND != ac &&
1.59 kristaps 1083: ARGS_PHRASE != ac &&
1.57 kristaps 1084: ARGS_PPHRASE != ac &&
1.53 kristaps 1085: ARGS_QWORD != ac &&
1.105 ! kristaps 1086: DELIM_OPEN == mdoc_isdelim(p)) {
! 1087: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.45 kristaps 1088: return(0);
1089: continue;
1090: }
1091:
1.74 kristaps 1092: /* Open a head if one hasn't been opened. */
1.45 kristaps 1093:
1.74 kristaps 1094: if (NULL == head) {
1.45 kristaps 1095: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1096: return(0);
1097: head = m->last;
1098: }
1099:
1.72 kristaps 1100: if (ARGS_PHRASE == ac ||
1101: ARGS_PEND == ac ||
1102: ARGS_PPHRASE == ac) {
1.73 kristaps 1103: /*
1.74 kristaps 1104: * If we haven't opened a body yet, rewind the
1105: * head; if we have, rewind that instead.
1106: */
1107:
1108: mtt = body ? MDOC_BODY : MDOC_HEAD;
1109: if ( ! rew_sub(mtt, m, tok, line, ppos))
1110: return(0);
1111:
1112: /* Then allocate our body context. */
1113:
1114: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1115: return(0);
1116: body = m->last;
1117:
1118: /*
1.73 kristaps 1119: * Process phrases: set whether we're in a
1120: * partial-phrase (this effects line handling)
1121: * then call down into the phrase parser.
1122: */
1.74 kristaps 1123:
1.65 kristaps 1124: if (ARGS_PPHRASE == ac)
1125: m->flags |= MDOC_PPHRASE;
1.71 kristaps 1126: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1127: m->flags |= MDOC_PPHRASE;
1128:
1.82 kristaps 1129: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1130: return(0);
1.71 kristaps 1131:
1.65 kristaps 1132: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1133: continue;
1134: }
1135:
1.54 kristaps 1136: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1137:
1138: if (MDOC_MAX == ntok) {
1.105 ! kristaps 1139: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1140: return(0);
1.53 kristaps 1141: continue;
1.45 kristaps 1142: }
1.53 kristaps 1143:
1.82 kristaps 1144: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.45 kristaps 1145: return(0);
1.53 kristaps 1146: break;
1.45 kristaps 1147: }
1.1 kristaps 1148:
1.45 kristaps 1149: if (NULL == head) {
1150: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1151: return(0);
1.45 kristaps 1152: head = m->last;
1.1 kristaps 1153: }
1154:
1.63 kristaps 1155: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1156: return(0);
1.19 kristaps 1157:
1.49 kristaps 1158: /* If we've already opened our body, exit now. */
1.45 kristaps 1159:
1.49 kristaps 1160: if (NULL != body)
1.77 kristaps 1161: goto out;
1.19 kristaps 1162:
1.47 kristaps 1163: /*
1.49 kristaps 1164: * If there is an open (i.e., unvalidated) sub-block requiring
1165: * explicit close-out, postpone switching the current block from
1166: * head to body until the rew_sub() call closing out that
1167: * sub-block.
1.47 kristaps 1168: */
1169: for (n = m->last; n && n != head; n = n->parent) {
1.49 kristaps 1170: if (MDOC_BLOCK == n->type &&
1171: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1172: ! (MDOC_VALID & n->flags)) {
1.47 kristaps 1173: n->pending = head;
1174: return(1);
1175: }
1176: }
1177:
1.45 kristaps 1178: /* Close out scopes to remain in a consistent state. */
1179:
1.32 kristaps 1180: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1181: return(0);
1.32 kristaps 1182: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1183: return(0);
1184:
1.77 kristaps 1185: out:
1186: if ( ! (MDOC_FREECOL & m->flags))
1187: return(1);
1188:
1189: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1190: return(0);
1191: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1192: return(0);
1193:
1194: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1195: return(1);
1196: }
1197:
1198:
1199: static int
1200: blk_part_imp(MACRO_PROT_ARGS)
1201: {
1.63 kristaps 1202: int la, nl;
1.53 kristaps 1203: enum mdoct ntok;
1.55 kristaps 1204: enum margserr ac;
1.1 kristaps 1205: char *p;
1.43 kristaps 1206: struct mdoc_node *blk; /* saved block context */
1207: struct mdoc_node *body; /* saved body context */
1208: struct mdoc_node *n;
1.1 kristaps 1209:
1.63 kristaps 1210: nl = MDOC_NEWLINE & m->flags;
1211:
1.43 kristaps 1212: /*
1213: * A macro that spans to the end of the line. This is generally
1214: * (but not necessarily) called as the first macro. The block
1215: * has a head as the immediate child, which is always empty,
1216: * followed by zero or more opening punctuation nodes, then the
1217: * body (which may be empty, depending on the macro), then zero
1218: * or more closing punctuation nodes.
1219: */
1.32 kristaps 1220:
1221: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1222: return(0);
1.43 kristaps 1223:
1.32 kristaps 1224: blk = m->last;
1.43 kristaps 1225:
1.32 kristaps 1226: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1227: return(0);
1.32 kristaps 1228: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1229: return(0);
1230:
1.43 kristaps 1231: /*
1232: * Open the body scope "on-demand", that is, after we've
1233: * processed all our the leading delimiters (open parenthesis,
1234: * etc.).
1235: */
1.1 kristaps 1236:
1.43 kristaps 1237: for (body = NULL; ; ) {
1.32 kristaps 1238: la = *pos;
1.53 kristaps 1239: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.43 kristaps 1240:
1.53 kristaps 1241: if (ARGS_ERROR == ac)
1.1 kristaps 1242: return(0);
1.53 kristaps 1243: if (ARGS_EOLN == ac)
1.43 kristaps 1244: break;
1.53 kristaps 1245: if (ARGS_PUNCT == ac)
1.1 kristaps 1246: break;
1247:
1.53 kristaps 1248: if (NULL == body && ARGS_QWORD != ac &&
1.105 ! kristaps 1249: DELIM_OPEN == mdoc_isdelim(p)) {
! 1250: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.1 kristaps 1251: return(0);
1252: continue;
1253: }
1254:
1.43 kristaps 1255: if (NULL == body) {
1256: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1257: return(0);
1258: body = m->last;
1259: }
1260:
1.54 kristaps 1261: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1262:
1263: if (MDOC_MAX == ntok) {
1.105 ! kristaps 1264: if ( ! dword(m, line, la, p, DELIM_MAX))
1.43 kristaps 1265: return(0);
1.53 kristaps 1266: continue;
1267: }
1.43 kristaps 1268:
1.82 kristaps 1269: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1270: return(0);
1.53 kristaps 1271: break;
1.1 kristaps 1272: }
1273:
1.43 kristaps 1274: /* Clean-ups to leave in a consistent state. */
1275:
1.44 kristaps 1276: if (NULL == body) {
1277: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1278: return(0);
1279: body = m->last;
1.64 kristaps 1280: }
1281:
1282: for (n = body->child; n && n->next; n = n->next)
1283: /* Do nothing. */ ;
1284:
1285: /*
1286: * End of sentence spacing: if the last node is a text node and
1287: * has a trailing period, then mark it as being end-of-sentence.
1288: */
1289:
1290: if (n && MDOC_TEXT == n->type && n->string)
1.93 schwarze 1291: if (mandoc_eos(n->string, strlen(n->string), 1))
1.64 kristaps 1292: n->flags |= MDOC_EOS;
1293:
1294: /* Up-propogate the end-of-space flag. */
1295:
1296: if (n && (MDOC_EOS & n->flags)) {
1297: body->flags |= MDOC_EOS;
1298: body->parent->flags |= MDOC_EOS;
1.44 kristaps 1299: }
1.43 kristaps 1300:
1.83 schwarze 1301: /*
1302: * If there is an open sub-block requiring explicit close-out,
1303: * postpone closing out the current block
1304: * until the rew_sub() call closing out the sub-block.
1305: */
1306: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1307: if (MDOC_BLOCK == n->type &&
1308: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1309: ! (MDOC_VALID & n->flags)) {
1.98 kristaps 1310: make_pending(n, tok, m, line, ppos);
1.83 schwarze 1311: if ( ! mdoc_endbody_alloc(m, line, ppos,
1312: tok, body, ENDBODY_NOSPACE))
1313: return(0);
1314: return(1);
1315: }
1316: }
1317:
1.32 kristaps 1318: /*
1319: * If we can't rewind to our body, then our scope has already
1320: * been closed by another macro (like `Oc' closing `Op'). This
1321: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1322: * crufty use of `Op' breakage.
1.1 kristaps 1323: */
1.103 kristaps 1324: if (n != body)
1.104 kristaps 1325: mandoc_vmsg(MANDOCERR_SCOPENEST, m->parse, line, ppos,
1.103 kristaps 1326: "%s broken", mdoc_macronames[tok]);
1.43 kristaps 1327:
1.83 schwarze 1328: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.32 kristaps 1329: return(0);
1.1 kristaps 1330:
1.32 kristaps 1331: /* Standard appending of delimiters. */
1.1 kristaps 1332:
1.63 kristaps 1333: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1334: return(0);
1335:
1.32 kristaps 1336: /* Rewind scope, if applicable. */
1.1 kristaps 1337:
1.83 schwarze 1338: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1339: return(0);
1340:
1341: return(1);
1342: }
1343:
1344:
1345: static int
1346: blk_part_exp(MACRO_PROT_ARGS)
1347: {
1.60 kristaps 1348: int la, nl;
1.55 kristaps 1349: enum margserr ac;
1.43 kristaps 1350: struct mdoc_node *head; /* keep track of head */
1351: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1352: char *p;
1.53 kristaps 1353: enum mdoct ntok;
1.1 kristaps 1354:
1.60 kristaps 1355: nl = MDOC_NEWLINE & m->flags;
1356:
1.43 kristaps 1357: /*
1358: * The opening of an explicit macro having zero or more leading
1359: * punctuation nodes; a head with optional single element (the
1360: * case of `Eo'); and a body that may be empty.
1361: */
1.32 kristaps 1362:
1363: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1364: return(0);
1.32 kristaps 1365:
1.43 kristaps 1366: for (head = body = NULL; ; ) {
1.32 kristaps 1367: la = *pos;
1.53 kristaps 1368: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1369:
1.53 kristaps 1370: if (ARGS_ERROR == ac)
1.1 kristaps 1371: return(0);
1.53 kristaps 1372: if (ARGS_PUNCT == ac)
1.1 kristaps 1373: break;
1.53 kristaps 1374: if (ARGS_EOLN == ac)
1.1 kristaps 1375: break;
1.43 kristaps 1376:
1377: /* Flush out leading punctuation. */
1378:
1.53 kristaps 1379: if (NULL == head && ARGS_QWORD != ac &&
1.105 ! kristaps 1380: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1381: assert(NULL == body);
1.105 ! kristaps 1382: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.43 kristaps 1383: return(0);
1384: continue;
1385: }
1386:
1387: if (NULL == head) {
1388: assert(NULL == body);
1389: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1390: return(0);
1.43 kristaps 1391: head = m->last;
1.1 kristaps 1392: }
1393:
1.43 kristaps 1394: /*
1395: * `Eo' gobbles any data into the head, but most other
1396: * macros just immediately close out and begin the body.
1397: */
1398:
1399: if (NULL == body) {
1400: assert(head);
1401: /* No check whether it's a macro! */
1402: if (MDOC_Eo == tok)
1.105 ! kristaps 1403: if ( ! dword(m, line, la, p, DELIM_MAX))
1.43 kristaps 1404: return(0);
1405:
1.32 kristaps 1406: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1407: return(0);
1.32 kristaps 1408: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1409: return(0);
1.43 kristaps 1410: body = m->last;
1411:
1412: if (MDOC_Eo == tok)
1413: continue;
1.1 kristaps 1414: }
1.43 kristaps 1415:
1416: assert(NULL != head && NULL != body);
1417:
1.54 kristaps 1418: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1419:
1420: if (MDOC_MAX == ntok) {
1.105 ! kristaps 1421: if ( ! dword(m, line, la, p, DELIM_MAX))
1.43 kristaps 1422: return(0);
1.53 kristaps 1423: continue;
1.43 kristaps 1424: }
1425:
1.82 kristaps 1426: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1427: return(0);
1.53 kristaps 1428: break;
1.1 kristaps 1429: }
1430:
1.43 kristaps 1431: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1432:
1.43 kristaps 1433: if (NULL == head) {
1434: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1435: return(0);
1436: head = m->last;
1437: }
1438:
1439: if (NULL == body) {
1.32 kristaps 1440: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1441: return(0);
1.32 kristaps 1442: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1443: return(0);
1.43 kristaps 1444: body = m->last;
1.1 kristaps 1445: }
1446:
1.32 kristaps 1447: /* Standard appending of delimiters. */
1448:
1.60 kristaps 1449: if ( ! nl)
1.1 kristaps 1450: return(1);
1.32 kristaps 1451: return(append_delims(m, line, pos, buf));
1.1 kristaps 1452: }
1453:
1454:
1.61 kristaps 1455: /* ARGSUSED */
1.1 kristaps 1456: static int
1457: in_line_argn(MACRO_PROT_ARGS)
1458: {
1.60 kristaps 1459: int la, flushed, j, maxargs, nl;
1.55 kristaps 1460: enum margserr ac;
1.56 kristaps 1461: enum margverr av;
1.53 kristaps 1462: struct mdoc_arg *arg;
1463: char *p;
1464: enum mdoct ntok;
1.1 kristaps 1465:
1.60 kristaps 1466: nl = MDOC_NEWLINE & m->flags;
1467:
1.46 kristaps 1468: /*
1469: * A line macro that has a fixed number of arguments (maxargs).
1470: * Only open the scope once the first non-leading-punctuation is
1471: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1472: * keep it open until the maximum number of arguments are
1473: * exhausted.
1474: */
1.1 kristaps 1475:
1476: switch (tok) {
1477: case (MDOC_Ap):
1478: /* FALLTHROUGH */
1479: case (MDOC_No):
1480: /* FALLTHROUGH */
1481: case (MDOC_Ns):
1482: /* FALLTHROUGH */
1483: case (MDOC_Ux):
1484: maxargs = 0;
1485: break;
1.101 kristaps 1486: case (MDOC_Bx):
1487: /* FALLTHROUGH */
1.42 kristaps 1488: case (MDOC_Xr):
1489: maxargs = 2;
1490: break;
1.1 kristaps 1491: default:
1492: maxargs = 1;
1493: break;
1494: }
1495:
1.46 kristaps 1496: for (arg = NULL; ; ) {
1.32 kristaps 1497: la = *pos;
1.56 kristaps 1498: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1499:
1.56 kristaps 1500: if (ARGV_WORD == av) {
1.32 kristaps 1501: *pos = la;
1.1 kristaps 1502: break;
1503: }
1504:
1.56 kristaps 1505: if (ARGV_EOLN == av)
1.1 kristaps 1506: break;
1.56 kristaps 1507: if (ARGV_ARG == av)
1.1 kristaps 1508: continue;
1509:
1510: mdoc_argv_free(arg);
1511: return(0);
1512: }
1513:
1.46 kristaps 1514: for (flushed = j = 0; ; ) {
1.32 kristaps 1515: la = *pos;
1.53 kristaps 1516: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1517:
1.53 kristaps 1518: if (ARGS_ERROR == ac)
1.1 kristaps 1519: return(0);
1.53 kristaps 1520: if (ARGS_PUNCT == ac)
1.1 kristaps 1521: break;
1.53 kristaps 1522: if (ARGS_EOLN == ac)
1.1 kristaps 1523: break;
1524:
1.46 kristaps 1525: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.105 ! kristaps 1526: ARGS_QWORD != ac && 0 == j &&
! 1527: DELIM_OPEN == mdoc_isdelim(p)) {
! 1528: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.46 kristaps 1529: return(0);
1530: continue;
1531: } else if (0 == j)
1532: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1533: return(0);
1534:
1535: if (j == maxargs && ! flushed) {
1536: if ( ! rew_elem(m, tok))
1537: return(0);
1538: flushed = 1;
1539: }
1540:
1.54 kristaps 1541: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1542:
1543: if (MDOC_MAX != ntok) {
1.32 kristaps 1544: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1545: return(0);
1546: flushed = 1;
1.82 kristaps 1547: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1548: return(0);
1.46 kristaps 1549: j++;
1.1 kristaps 1550: break;
1551: }
1552:
1553: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1554: ARGS_QWORD != ac &&
1.67 schwarze 1555: ! flushed &&
1.105 ! kristaps 1556: DELIM_NONE != mdoc_isdelim(p)) {
1.32 kristaps 1557: if ( ! rew_elem(m, tok))
1.1 kristaps 1558: return(0);
1559: flushed = 1;
1560: }
1.42 kristaps 1561:
1562: /*
1563: * XXX: this is a hack to work around groff's ugliness
1564: * as regards `Xr' and extraneous arguments. It should
1565: * ideally be deprecated behaviour, but because this is
1566: * code is no here, it's unlikely to be removed.
1567: */
1.43 kristaps 1568:
1.46 kristaps 1569: #ifdef __OpenBSD__
1.42 kristaps 1570: if (MDOC_Xr == tok && j == maxargs) {
1.46 kristaps 1571: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.42 kristaps 1572: return(0);
1573: if ( ! rew_elem(m, MDOC_Ns))
1574: return(0);
1575: }
1.46 kristaps 1576: #endif
1.42 kristaps 1577:
1.105 ! kristaps 1578: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1579: return(0);
1.46 kristaps 1580: j++;
1.1 kristaps 1581: }
1582:
1.46 kristaps 1583: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1584: return(0);
1585:
1586: /* Close out in a consistent state. */
1.32 kristaps 1587:
1588: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1589: return(0);
1.60 kristaps 1590: if ( ! nl)
1.1 kristaps 1591: return(1);
1.32 kristaps 1592: return(append_delims(m, line, pos, buf));
1.1 kristaps 1593: }
1594:
1595:
1596: static int
1597: in_line_eoln(MACRO_PROT_ARGS)
1598: {
1.56 kristaps 1599: int la;
1.55 kristaps 1600: enum margserr ac;
1.56 kristaps 1601: enum margverr av;
1.53 kristaps 1602: struct mdoc_arg *arg;
1603: char *p;
1604: enum mdoct ntok;
1.1 kristaps 1605:
1606: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1607:
1.90 schwarze 1608: if (tok == MDOC_Pp)
1609: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1610:
1.32 kristaps 1611: /* Parse macro arguments. */
1.1 kristaps 1612:
1.32 kristaps 1613: for (arg = NULL; ; ) {
1.1 kristaps 1614: la = *pos;
1.56 kristaps 1615: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1616:
1.56 kristaps 1617: if (ARGV_WORD == av) {
1.1 kristaps 1618: *pos = la;
1619: break;
1620: }
1.56 kristaps 1621: if (ARGV_EOLN == av)
1.1 kristaps 1622: break;
1.56 kristaps 1623: if (ARGV_ARG == av)
1.1 kristaps 1624: continue;
1625:
1626: mdoc_argv_free(arg);
1627: return(0);
1628: }
1629:
1.32 kristaps 1630: /* Open element scope. */
1631:
1632: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1633: return(0);
1634:
1.32 kristaps 1635: /* Parse argument terms. */
1.1 kristaps 1636:
1637: for (;;) {
1638: la = *pos;
1.53 kristaps 1639: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1640:
1.53 kristaps 1641: if (ARGS_ERROR == ac)
1.1 kristaps 1642: return(0);
1.53 kristaps 1643: if (ARGS_EOLN == ac)
1.1 kristaps 1644: break;
1645:
1.53 kristaps 1646: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1647:
1.53 kristaps 1648: if (MDOC_MAX == ntok) {
1.105 ! kristaps 1649: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1650: return(0);
1.53 kristaps 1651: continue;
1652: }
1.1 kristaps 1653:
1.53 kristaps 1654: if ( ! rew_elem(m, tok))
1.1 kristaps 1655: return(0);
1.82 kristaps 1656: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1657: }
1658:
1.32 kristaps 1659: /* Close out (no delimiters). */
1660:
1661: return(rew_elem(m, tok));
1.1 kristaps 1662: }
1663:
1664:
1665: /* ARGSUSED */
1666: static int
1.41 kristaps 1667: ctx_synopsis(MACRO_PROT_ARGS)
1668: {
1.60 kristaps 1669: int nl;
1670:
1671: nl = MDOC_NEWLINE & m->flags;
1.41 kristaps 1672:
1673: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.90 schwarze 1674: if ( ! (MDOC_SYNOPSIS & m->flags))
1.82 kristaps 1675: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1676:
1677: /* If we're a nested call, same place. */
1.60 kristaps 1678: if ( ! nl)
1.82 kristaps 1679: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1680:
1681: /*
1682: * XXX: this will open a block scope; however, if later we end
1683: * up formatting the block scope, then child nodes will inherit
1684: * the formatting. Be careful.
1685: */
1.88 schwarze 1686: if (MDOC_Nm == tok)
1687: return(blk_full(m, tok, line, ppos, pos, buf));
1688: assert(MDOC_Vt == tok);
1.82 kristaps 1689: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.41 kristaps 1690: }
1691:
1692:
1693: /* ARGSUSED */
1694: static int
1.1 kristaps 1695: obsolete(MACRO_PROT_ARGS)
1696: {
1697:
1.103 kristaps 1698: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS);
1699: return(1);
1.1 kristaps 1700: }
1701:
1702:
1.24 kristaps 1703: /*
1704: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1705: * They're unusual because they're basically free-form text until a
1706: * macro is encountered.
1707: */
1.1 kristaps 1708: static int
1.82 kristaps 1709: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1710: {
1.53 kristaps 1711: int la, pos;
1.75 kristaps 1712: enum margserr ac;
1.53 kristaps 1713: enum mdoct ntok;
1714: char *p;
1.1 kristaps 1715:
1.24 kristaps 1716: for (pos = ppos; ; ) {
1717: la = pos;
1.1 kristaps 1718:
1.75 kristaps 1719: ac = mdoc_zargs(m, line, &pos, buf, 0, &p);
1.1 kristaps 1720:
1.75 kristaps 1721: if (ARGS_ERROR == ac)
1.24 kristaps 1722: return(0);
1.75 kristaps 1723: if (ARGS_EOLN == ac)
1.24 kristaps 1724: break;
1.1 kristaps 1725:
1.75 kristaps 1726: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1727:
1.53 kristaps 1728: if (MDOC_MAX == ntok) {
1.105 ! kristaps 1729: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1730: return(0);
1.53 kristaps 1731: continue;
1732: }
1.1 kristaps 1733:
1.82 kristaps 1734: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1735: return(0);
1.53 kristaps 1736: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1737: }
1738:
1739: return(1);
1740: }
1.24 kristaps 1741:
1742:
1.79 kristaps 1743: /* ARGSUSED */
1.75 kristaps 1744: static int
1745: phrase_ta(MACRO_PROT_ARGS)
1746: {
1747: int la;
1748: enum mdoct ntok;
1749: enum margserr ac;
1750: char *p;
1751:
1752: /*
1753: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1754: * it should simply error out with ARGSLOST.
1755: */
1756:
1757: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1758: return(0);
1759: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1760: return(0);
1761:
1762: for (;;) {
1763: la = *pos;
1764: ac = mdoc_zargs(m, line, pos, buf, 0, &p);
1765:
1766: if (ARGS_ERROR == ac)
1767: return(0);
1768: if (ARGS_EOLN == ac)
1769: break;
1770:
1771: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1772:
1773: if (MDOC_MAX == ntok) {
1.105 ! kristaps 1774: if ( ! dword(m, line, la, p, DELIM_MAX))
1.75 kristaps 1775: return(0);
1776: continue;
1777: }
1778:
1.82 kristaps 1779: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.75 kristaps 1780: return(0);
1781: return(append_delims(m, line, pos, buf));
1782: }
1783:
1784: return(1);
1785: }
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