Annotation of mandoc/mdoc_macro.c, Revision 1.114
1.114 ! kristaps 1: /* $Id: mdoc_macro.c,v 1.113 2011/12/03 23:59:14 schwarze Exp $ */
1.1 kristaps 2: /*
1.111 schwarze 3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.92 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
1.8 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:
1.106 kristaps 29: #include "mdoc.h"
1.68 kristaps 30: #include "mandoc.h"
1.1 kristaps 31: #include "libmdoc.h"
1.64 kristaps 32: #include "libmandoc.h"
1.1 kristaps 33:
1.84 schwarze 34: enum rew { /* see rew_dohalt() */
35: REWIND_NONE,
36: REWIND_THIS,
37: REWIND_MORE,
1.98 kristaps 38: REWIND_FORCE,
1.84 schwarze 39: REWIND_LATER,
1.91 kristaps 40: REWIND_ERROR
1.51 kristaps 41: };
1.1 kristaps 42:
1.53 kristaps 43: static int blk_full(MACRO_PROT_ARGS);
44: static int blk_exp_close(MACRO_PROT_ARGS);
45: static int blk_part_exp(MACRO_PROT_ARGS);
46: static int blk_part_imp(MACRO_PROT_ARGS);
47: static int ctx_synopsis(MACRO_PROT_ARGS);
48: static int in_line_eoln(MACRO_PROT_ARGS);
49: static int in_line_argn(MACRO_PROT_ARGS);
50: static int in_line(MACRO_PROT_ARGS);
51: static int obsolete(MACRO_PROT_ARGS);
1.75 kristaps 52: static int phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 53:
1.105 kristaps 54: static int dword(struct mdoc *, int, int,
55: const char *, enum mdelim);
1.53 kristaps 56: static int append_delims(struct mdoc *,
57: int, int *, char *);
1.58 kristaps 58: static enum mdoct lookup(enum mdoct, const char *);
1.53 kristaps 59: static enum mdoct lookup_raw(const char *);
1.85 schwarze 60: static int make_pending(struct mdoc_node *, enum mdoct,
1.83 schwarze 61: struct mdoc *, int, int);
1.82 kristaps 62: static int phrase(struct mdoc *, int, int, char *);
1.53 kristaps 63: static enum mdoct rew_alt(enum mdoct);
64: static enum rew rew_dohalt(enum mdoct, enum mdoc_type,
65: const struct mdoc_node *);
66: static int rew_elem(struct mdoc *, enum mdoct);
67: static int rew_last(struct mdoc *,
68: const struct mdoc_node *);
69: static int rew_sub(enum mdoc_type, struct mdoc *,
70: enum mdoct, int, int);
1.1 kristaps 71:
72: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.13 kristaps 73: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */
1.1 kristaps 74: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
75: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
76: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.110 kristaps 77: { blk_full, MDOC_PARSED }, /* Sh */
78: { blk_full, MDOC_PARSED }, /* Ss */
1.21 kristaps 79: { in_line_eoln, 0 }, /* Pp */
1.1 kristaps 80: { blk_part_imp, MDOC_PARSED }, /* D1 */
81: { blk_part_imp, MDOC_PARSED }, /* Dl */
82: { blk_full, MDOC_EXPLICIT }, /* Bd */
83: { blk_exp_close, MDOC_EXPLICIT }, /* Ed */
84: { blk_full, MDOC_EXPLICIT }, /* Bl */
85: { blk_exp_close, MDOC_EXPLICIT }, /* El */
86: { blk_full, MDOC_PARSED }, /* It */
87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
1.10 kristaps 88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* An */
1.1 kristaps 89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.23 kristaps 90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cd */
1.1 kristaps 91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
95: { in_line_eoln, 0 }, /* Ex */
96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
97: { in_line_eoln, 0 }, /* Fd */
98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
99: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
1.11 kristaps 100: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.1 kristaps 101: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
1.18 kristaps 102: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.1 kristaps 103: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
1.19 kristaps 104: { blk_full, 0 }, /* Nd */
1.88 schwarze 105: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 106: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
107: { obsolete, 0 }, /* Ot */
108: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
109: { in_line_eoln, 0 }, /* Rv */
110: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
111: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.41 kristaps 112: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 113: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.1 kristaps 114: { in_line_eoln, 0 }, /* %A */
115: { in_line_eoln, 0 }, /* %B */
116: { in_line_eoln, 0 }, /* %D */
117: { in_line_eoln, 0 }, /* %I */
118: { in_line_eoln, 0 }, /* %J */
119: { in_line_eoln, 0 }, /* %N */
120: { in_line_eoln, 0 }, /* %O */
121: { in_line_eoln, 0 }, /* %P */
122: { in_line_eoln, 0 }, /* %R */
123: { in_line_eoln, 0 }, /* %T */
124: { in_line_eoln, 0 }, /* %V */
125: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
126: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
127: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
128: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
129: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
130: { blk_full, MDOC_EXPLICIT }, /* Bf */
131: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
132: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
133: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
134: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
135: { in_line_eoln, 0 }, /* Db */
136: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
137: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
138: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
139: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
140: { blk_exp_close, MDOC_EXPLICIT }, /* Ef */
141: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
142: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 144: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.95 schwarze 145: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* No */
146: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Ns */
1.1 kristaps 147: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
148: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
149: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
1.52 kristaps 150: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.1 kristaps 151: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
152: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
153: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
154: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
155: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
156: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
157: { blk_exp_close, MDOC_EXPLICIT }, /* Re */
158: { blk_full, MDOC_EXPLICIT }, /* Rs */
159: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
160: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
161: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
162: { in_line_eoln, 0 }, /* Sm */
163: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
164: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
165: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
166: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */
167: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
168: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
169: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
170: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */
171: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
172: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
173: { blk_full, MDOC_EXPLICIT }, /* Bk */
174: { blk_exp_close, MDOC_EXPLICIT }, /* Ek */
175: { in_line_eoln, 0 }, /* Bt */
176: { in_line_eoln, 0 }, /* Hf */
177: { obsolete, 0 }, /* Fr */
178: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 179: { in_line, 0 }, /* Lb */
1.21 kristaps 180: { in_line_eoln, 0 }, /* Lp */
1.12 kristaps 181: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
182: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
1.1 kristaps 183: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */
184: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */
185: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */
186: { in_line_eoln, 0 }, /* %C */
187: { obsolete, 0 }, /* Es */
188: { obsolete, 0 }, /* En */
189: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
190: { in_line_eoln, 0 }, /* %Q */
1.20 kristaps 191: { in_line_eoln, 0 }, /* br */
192: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 193: { in_line_eoln, 0 }, /* %U */
1.75 kristaps 194: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED }, /* Ta */
1.1 kristaps 195: };
196:
197: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
198:
199:
200: /*
201: * This is called at the end of parsing. It must traverse up the tree,
202: * closing out open [implicit] scopes. Obviously, open explicit scopes
203: * are errors.
204: */
205: int
1.32 kristaps 206: mdoc_macroend(struct mdoc *m)
1.1 kristaps 207: {
208: struct mdoc_node *n;
209:
210: /* Scan for open explicit scopes. */
211:
1.32 kristaps 212: n = MDOC_VALID & m->last->flags ? m->last->parent : m->last;
1.1 kristaps 213:
1.94 schwarze 214: for ( ; n; n = n->parent)
215: if (MDOC_BLOCK == n->type &&
216: MDOC_EXPLICIT & mdoc_macros[n->tok].flags)
217: mdoc_nmsg(m, n, MANDOCERR_SCOPEEXIT);
1.1 kristaps 218:
1.32 kristaps 219: /* Rewind to the first. */
220:
221: return(rew_last(m, m->first));
1.1 kristaps 222: }
223:
1.32 kristaps 224:
225: /*
226: * Look up a macro from within a subsequent context.
227: */
1.53 kristaps 228: static enum mdoct
1.58 kristaps 229: lookup(enum mdoct from, const char *p)
1.28 kristaps 230: {
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;
1.108 schwarze 602:
603: /*
604: * Closing delimiters only suppress the preceding space
605: * when they follow something, not when they start a new
606: * block or element, and not when they follow `No'.
607: *
608: * XXX Explicitly special-casing MDOC_No here feels
609: * like a layering violation. Find a better way
610: * and solve this in the code related to `No'!
611: */
612:
613: else if (DELIM_CLOSE == d && m->last->prev &&
614: m->last->prev->tok != MDOC_No)
1.105 kristaps 615: m->last->flags |= MDOC_DELIMC;
616:
617: return(1);
618: }
1.1 kristaps 619:
620: static int
1.66 kristaps 621: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 622: {
1.66 kristaps 623: int la;
1.55 kristaps 624: enum margserr ac;
1.1 kristaps 625: char *p;
626:
1.66 kristaps 627: if ('\0' == buf[*pos])
1.1 kristaps 628: return(1);
629:
630: for (;;) {
1.66 kristaps 631: la = *pos;
1.107 kristaps 632: ac = mdoc_zargs(m, line, pos, buf, &p);
1.1 kristaps 633:
1.53 kristaps 634: if (ARGS_ERROR == ac)
1.1 kristaps 635: return(0);
1.53 kristaps 636: else if (ARGS_EOLN == ac)
1.1 kristaps 637: break;
1.66 kristaps 638:
1.105 kristaps 639: dword(m, line, la, p, DELIM_MAX);
1.66 kristaps 640:
641: /*
642: * If we encounter end-of-sentence symbols, then trigger
643: * the double-space.
644: *
1.109 kristaps 645: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 646: * the last symbol, such that `. )' will cause the
647: * correct double-spacing. However, (1) groff isn't
648: * smart enough to do this and (2) it would require
649: * knowing which symbols break this behaviour, for
1.109 kristaps 650: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 651: */
1.93 schwarze 652: if (mandoc_eos(p, strlen(p), 0))
1.66 kristaps 653: m->last->flags |= MDOC_EOS;
1.1 kristaps 654: }
655:
656: return(1);
657: }
658:
659:
660: /*
661: * Close out block partial/full explicit.
662: */
663: static int
664: blk_exp_close(MACRO_PROT_ARGS)
665: {
1.83 schwarze 666: struct mdoc_node *body; /* Our own body. */
667: struct mdoc_node *later; /* A sub-block starting later. */
668: struct mdoc_node *n; /* For searching backwards. */
669:
1.60 kristaps 670: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 671: enum margserr ac;
1.83 schwarze 672: enum mdoct atok, ntok;
1.1 kristaps 673: char *p;
674:
1.60 kristaps 675: nl = MDOC_NEWLINE & m->flags;
676:
1.1 kristaps 677: switch (tok) {
678: case (MDOC_Ec):
679: maxargs = 1;
680: break;
681: default:
682: maxargs = 0;
683: break;
684: }
685:
1.83 schwarze 686: /*
687: * Search backwards for beginnings of blocks,
688: * both of our own and of pending sub-blocks.
689: */
690: atok = rew_alt(tok);
691: body = later = NULL;
692: for (n = m->last; n; n = n->parent) {
693: if (MDOC_VALID & n->flags)
694: continue;
695:
696: /* Remember the start of our own body. */
697: if (MDOC_BODY == n->type && atok == n->tok) {
1.87 kristaps 698: if (ENDBODY_NOT == n->end)
1.83 schwarze 699: body = n;
700: continue;
701: }
702:
1.88 schwarze 703: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.83 schwarze 704: continue;
705: if (atok == n->tok) {
706: assert(body);
707:
708: /*
709: * Found the start of our own block.
710: * When there is no pending sub block,
711: * just proceed to closing out.
712: */
713: if (NULL == later)
714: break;
715:
716: /*
717: * When there is a pending sub block,
718: * postpone closing out the current block
719: * until the rew_sub() closing out the sub-block.
720: */
1.98 kristaps 721: make_pending(later, tok, m, line, ppos);
1.83 schwarze 722:
723: /*
724: * Mark the place where the formatting - but not
725: * the scope - of the current block ends.
726: */
727: if ( ! mdoc_endbody_alloc(m, line, ppos,
728: atok, body, ENDBODY_SPACE))
729: return(0);
730: break;
731: }
732:
733: /*
734: * When finding an open sub block, remember the last
735: * open explicit block, or, in case there are only
736: * implicit ones, the first open implicit block.
737: */
738: if (later &&
739: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
740: continue;
1.97 kristaps 741: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags)
1.83 schwarze 742: later = n;
743: }
744:
1.1 kristaps 745: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.68 kristaps 746: /* FIXME: do this in validate */
1.22 kristaps 747: if (buf[*pos])
1.103 kristaps 748: mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST);
1.22 kristaps 749:
1.32 kristaps 750: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 kristaps 751: return(0);
1.32 kristaps 752: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 753: }
754:
1.32 kristaps 755: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 756: return(0);
757:
1.83 schwarze 758: if (NULL == later && maxargs > 0)
1.32 kristaps 759: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 760: return(0);
761:
1.27 kristaps 762: for (flushed = j = 0; ; j++) {
1.1 kristaps 763: lastarg = *pos;
764:
765: if (j == maxargs && ! flushed) {
1.32 kristaps 766: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 767: return(0);
768: flushed = 1;
769: }
770:
1.53 kristaps 771: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 772:
1.53 kristaps 773: if (ARGS_ERROR == ac)
1.1 kristaps 774: return(0);
1.53 kristaps 775: if (ARGS_PUNCT == ac)
1.1 kristaps 776: break;
1.53 kristaps 777: if (ARGS_EOLN == ac)
1.1 kristaps 778: break;
779:
1.54 kristaps 780: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
781:
782: if (MDOC_MAX == ntok) {
1.105 kristaps 783: if ( ! dword(m, line, lastarg, p, DELIM_MAX))
1.1 kristaps 784: return(0);
1.54 kristaps 785: continue;
786: }
1.1 kristaps 787:
1.54 kristaps 788: if ( ! flushed) {
789: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
790: return(0);
791: flushed = 1;
792: }
1.82 kristaps 793: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 794: return(0);
1.54 kristaps 795: break;
1.1 kristaps 796: }
797:
1.32 kristaps 798: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 799: return(0);
800:
1.60 kristaps 801: if ( ! nl)
1.1 kristaps 802: return(1);
1.32 kristaps 803: return(append_delims(m, line, pos, buf));
1.1 kristaps 804: }
805:
806:
807: static int
808: in_line(MACRO_PROT_ARGS)
809: {
1.70 kristaps 810: int la, scope, cnt, nc, nl;
1.56 kristaps 811: enum margverr av;
1.53 kristaps 812: enum mdoct ntok;
1.55 kristaps 813: enum margserr ac;
1.67 schwarze 814: enum mdelim d;
1.53 kristaps 815: struct mdoc_arg *arg;
816: char *p;
1.1 kristaps 817:
1.60 kristaps 818: nl = MDOC_NEWLINE & m->flags;
819:
1.4 kristaps 820: /*
821: * Whether we allow ignored elements (those without content,
822: * usually because of reserved words) to squeak by.
823: */
1.45 kristaps 824:
1.4 kristaps 825: switch (tok) {
1.26 kristaps 826: case (MDOC_An):
827: /* FALLTHROUGH */
828: case (MDOC_Ar):
1.4 kristaps 829: /* FALLTHROUGH */
830: case (MDOC_Fl):
831: /* FALLTHROUGH */
1.96 kristaps 832: case (MDOC_Mt):
1.12 kristaps 833: /* FALLTHROUGH */
1.26 kristaps 834: case (MDOC_Nm):
835: /* FALLTHROUGH */
1.25 kristaps 836: case (MDOC_Pa):
1.4 kristaps 837: nc = 1;
838: break;
839: default:
840: nc = 0;
841: break;
842: }
843:
1.27 kristaps 844: for (arg = NULL;; ) {
1.1 kristaps 845: la = *pos;
1.56 kristaps 846: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 847:
1.56 kristaps 848: if (ARGV_WORD == av) {
1.1 kristaps 849: *pos = la;
850: break;
851: }
1.56 kristaps 852: if (ARGV_EOLN == av)
1.1 kristaps 853: break;
1.56 kristaps 854: if (ARGV_ARG == av)
1.1 kristaps 855: continue;
856:
857: mdoc_argv_free(arg);
858: return(0);
859: }
860:
1.70 kristaps 861: for (cnt = scope = 0;; ) {
1.1 kristaps 862: la = *pos;
1.53 kristaps 863: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 864:
1.53 kristaps 865: if (ARGS_ERROR == ac)
1.1 kristaps 866: return(0);
1.53 kristaps 867: if (ARGS_EOLN == ac)
1.1 kristaps 868: break;
1.53 kristaps 869: if (ARGS_PUNCT == ac)
1.1 kristaps 870: break;
871:
1.53 kristaps 872: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 873:
1.4 kristaps 874: /*
875: * In this case, we've located a submacro and must
876: * execute it. Close out scope, if open. If no
877: * elements have been generated, either create one (nc)
878: * or raise a warning.
879: */
1.1 kristaps 880:
1.53 kristaps 881: if (MDOC_MAX != ntok) {
1.70 kristaps 882: if (scope && ! rew_elem(m, tok))
1.1 kristaps 883: return(0);
1.4 kristaps 884: if (nc && 0 == cnt) {
1.32 kristaps 885: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 886: return(0);
1.32 kristaps 887: if ( ! rew_last(m, m->last))
1.12 kristaps 888: return(0);
1.7 kristaps 889: } else if ( ! nc && 0 == cnt) {
890: mdoc_argv_free(arg);
1.103 kristaps 891: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
1.7 kristaps 892: }
1.103 kristaps 893:
1.82 kristaps 894: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 895: return(0);
1.60 kristaps 896: if ( ! nl)
1.1 kristaps 897: return(1);
1.32 kristaps 898: return(append_delims(m, line, pos, buf));
1.29 kristaps 899: }
1.1 kristaps 900:
1.4 kristaps 901: /*
902: * Non-quote-enclosed punctuation. Set up our scope, if
903: * a word; rewind the scope, if a delimiter; then append
904: * the word.
905: */
1.1 kristaps 906:
1.105 kristaps 907: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 908:
1.70 kristaps 909: if (DELIM_NONE != d) {
910: /*
911: * If we encounter closing punctuation, no word
912: * has been omitted, no scope is open, and we're
913: * allowed to have an empty element, then start
914: * a new scope. `Ar', `Fl', and `Li', only do
915: * this once per invocation. There may be more
916: * of these (all of them?).
917: */
918: if (0 == cnt && (nc || MDOC_Li == tok) &&
919: DELIM_CLOSE == d && ! scope) {
920: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
921: return(0);
922: if (MDOC_Ar == tok || MDOC_Li == tok ||
923: MDOC_Fl == tok)
924: cnt++;
925: scope = 1;
926: }
927: /*
928: * Close out our scope, if one is open, before
929: * any punctuation.
930: */
931: if (scope && ! rew_elem(m, tok))
1.1 kristaps 932: return(0);
1.70 kristaps 933: scope = 0;
934: } else if ( ! scope) {
1.32 kristaps 935: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 936: return(0);
1.70 kristaps 937: scope = 1;
1.1 kristaps 938: }
939:
1.67 schwarze 940: if (DELIM_NONE == d)
1.3 kristaps 941: cnt++;
1.105 kristaps 942:
943: if ( ! dword(m, line, la, p, d))
1.1 kristaps 944: return(0);
1.39 kristaps 945:
946: /*
947: * `Fl' macros have their scope re-opened with each new
948: * word so that the `-' can be added to each one without
949: * having to parse out spaces.
950: */
1.70 kristaps 951: if (scope && MDOC_Fl == tok) {
1.39 kristaps 952: if ( ! rew_elem(m, tok))
953: return(0);
1.70 kristaps 954: scope = 0;
1.39 kristaps 955: }
1.1 kristaps 956: }
957:
1.70 kristaps 958: if (scope && ! rew_elem(m, tok))
1.1 kristaps 959: return(0);
1.4 kristaps 960:
961: /*
962: * If no elements have been collected and we're allowed to have
963: * empties (nc), open a scope and close it out. Otherwise,
964: * raise a warning.
965: */
1.45 kristaps 966:
1.4 kristaps 967: if (nc && 0 == cnt) {
1.32 kristaps 968: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 969: return(0);
1.32 kristaps 970: if ( ! rew_last(m, m->last))
1.12 kristaps 971: return(0);
1.7 kristaps 972: } else if ( ! nc && 0 == cnt) {
973: mdoc_argv_free(arg);
1.103 kristaps 974: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
1.7 kristaps 975: }
1.4 kristaps 976:
1.60 kristaps 977: if ( ! nl)
1.1 kristaps 978: return(1);
1.32 kristaps 979: return(append_delims(m, line, pos, buf));
1.1 kristaps 980: }
981:
982:
983: static int
984: blk_full(MACRO_PROT_ARGS)
985: {
1.114 ! kristaps 986: int la, nl, nparsed;
1.1 kristaps 987: struct mdoc_arg *arg;
1.45 kristaps 988: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 989: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 990: struct mdoc_node *n;
1.74 kristaps 991: enum mdoc_type mtt;
1.53 kristaps 992: enum mdoct ntok;
1.59 kristaps 993: enum margserr ac, lac;
1.56 kristaps 994: enum margverr av;
1.1 kristaps 995: char *p;
996:
1.114 ! kristaps 997: /*
! 998: * Exception: `-diag' lists are not parsed, but lists in general
! 999: * are parsed.
! 1000: */
! 1001: nparsed = 0;
! 1002: if (MDOC_It == tok && NULL != m->last &&
! 1003: MDOC_Bl == m->last->tok &&
! 1004: LIST_diag == m->last->norm->Bl.type)
! 1005: nparsed = 1;
! 1006:
1.63 kristaps 1007: nl = MDOC_NEWLINE & m->flags;
1008:
1.45 kristaps 1009: /* Close out prior implicit scope. */
1.19 kristaps 1010:
1.1 kristaps 1011: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.32 kristaps 1012: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 1013: return(0);
1.32 kristaps 1014: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1015: return(0);
1016: }
1017:
1.45 kristaps 1018: /*
1.109 kristaps 1019: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1020: * macro openings. Implicit ones first close out prior scope
1021: * (seen above). Delay opening the head until necessary to
1022: * allow leading punctuation to print. Special consideration
1023: * for `It -column', which has phrase-part syntax instead of
1024: * regular child nodes.
1025: */
1026:
1.1 kristaps 1027: for (arg = NULL;; ) {
1.45 kristaps 1028: la = *pos;
1.56 kristaps 1029: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1030:
1.56 kristaps 1031: if (ARGV_WORD == av) {
1.45 kristaps 1032: *pos = la;
1.1 kristaps 1033: break;
1034: }
1035:
1.56 kristaps 1036: if (ARGV_EOLN == av)
1.1 kristaps 1037: break;
1.56 kristaps 1038: if (ARGV_ARG == av)
1.1 kristaps 1039: continue;
1040:
1041: mdoc_argv_free(arg);
1042: return(0);
1043: }
1044:
1.32 kristaps 1045: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1046: return(0);
1047:
1.49 kristaps 1048: head = body = NULL;
1.1 kristaps 1049:
1.45 kristaps 1050: /*
1051: * The `Nd' macro has all arguments in its body: it's a hybrid
1052: * of block partial-explicit and full-implicit. Stupid.
1053: */
1.19 kristaps 1054:
1.45 kristaps 1055: if (MDOC_Nd == tok) {
1056: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1057: return(0);
1058: head = m->last;
1.32 kristaps 1059: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.19 kristaps 1060: return(0);
1.32 kristaps 1061: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.19 kristaps 1062: return(0);
1.49 kristaps 1063: body = m->last;
1.19 kristaps 1064: }
1065:
1.59 kristaps 1066: ac = ARGS_ERROR;
1067:
1.62 kristaps 1068: for ( ; ; ) {
1.45 kristaps 1069: la = *pos;
1.75 kristaps 1070: /* Initialise last-phrase-type with ARGS_PEND. */
1071: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.53 kristaps 1072: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.89 schwarze 1073:
1074: if (ARGS_PUNCT == ac)
1075: break;
1.1 kristaps 1076:
1.53 kristaps 1077: if (ARGS_ERROR == ac)
1.1 kristaps 1078: return(0);
1.75 kristaps 1079:
1080: if (ARGS_EOLN == ac) {
1081: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1082: break;
1083: /*
1084: * This is necessary: if the last token on a
1085: * line is a `Ta' or tab, then we'll get
1086: * ARGS_EOLN, so we must be smart enough to
1087: * reopen our scope if the last parse was a
1088: * phrase or partial phrase.
1089: */
1090: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1091: return(0);
1092: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1093: return(0);
1094: body = m->last;
1.1 kristaps 1095: break;
1.75 kristaps 1096: }
1.45 kristaps 1097:
1.73 kristaps 1098: /*
1099: * Emit leading punctuation (i.e., punctuation before
1100: * the MDOC_HEAD) for non-phrase types.
1101: */
1.45 kristaps 1102:
1.59 kristaps 1103: if (NULL == head &&
1.71 kristaps 1104: ARGS_PEND != ac &&
1.59 kristaps 1105: ARGS_PHRASE != ac &&
1.57 kristaps 1106: ARGS_PPHRASE != ac &&
1.53 kristaps 1107: ARGS_QWORD != ac &&
1.105 kristaps 1108: DELIM_OPEN == mdoc_isdelim(p)) {
1109: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.45 kristaps 1110: return(0);
1111: continue;
1112: }
1113:
1.74 kristaps 1114: /* Open a head if one hasn't been opened. */
1.45 kristaps 1115:
1.74 kristaps 1116: if (NULL == head) {
1.45 kristaps 1117: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1118: return(0);
1119: head = m->last;
1120: }
1121:
1.72 kristaps 1122: if (ARGS_PHRASE == ac ||
1123: ARGS_PEND == ac ||
1124: ARGS_PPHRASE == ac) {
1.73 kristaps 1125: /*
1.74 kristaps 1126: * If we haven't opened a body yet, rewind the
1127: * head; if we have, rewind that instead.
1128: */
1129:
1130: mtt = body ? MDOC_BODY : MDOC_HEAD;
1131: if ( ! rew_sub(mtt, m, tok, line, ppos))
1132: return(0);
1133:
1134: /* Then allocate our body context. */
1135:
1136: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1137: return(0);
1138: body = m->last;
1139:
1140: /*
1.73 kristaps 1141: * Process phrases: set whether we're in a
1142: * partial-phrase (this effects line handling)
1143: * then call down into the phrase parser.
1144: */
1.74 kristaps 1145:
1.65 kristaps 1146: if (ARGS_PPHRASE == ac)
1147: m->flags |= MDOC_PPHRASE;
1.71 kristaps 1148: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1149: m->flags |= MDOC_PPHRASE;
1150:
1.82 kristaps 1151: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1152: return(0);
1.71 kristaps 1153:
1.65 kristaps 1154: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1155: continue;
1156: }
1157:
1.114 ! kristaps 1158: ntok = nparsed || ARGS_QWORD == ac ?
! 1159: MDOC_MAX : lookup(tok, p);
1.54 kristaps 1160:
1161: if (MDOC_MAX == ntok) {
1.105 kristaps 1162: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1163: return(0);
1.53 kristaps 1164: continue;
1.45 kristaps 1165: }
1.53 kristaps 1166:
1.82 kristaps 1167: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.45 kristaps 1168: return(0);
1.53 kristaps 1169: break;
1.45 kristaps 1170: }
1.1 kristaps 1171:
1.45 kristaps 1172: if (NULL == head) {
1173: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1174: return(0);
1.45 kristaps 1175: head = m->last;
1.1 kristaps 1176: }
1177:
1.63 kristaps 1178: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1179: return(0);
1.19 kristaps 1180:
1.49 kristaps 1181: /* If we've already opened our body, exit now. */
1.45 kristaps 1182:
1.49 kristaps 1183: if (NULL != body)
1.77 kristaps 1184: goto out;
1.19 kristaps 1185:
1.47 kristaps 1186: /*
1.49 kristaps 1187: * If there is an open (i.e., unvalidated) sub-block requiring
1188: * explicit close-out, postpone switching the current block from
1189: * head to body until the rew_sub() call closing out that
1190: * sub-block.
1.47 kristaps 1191: */
1192: for (n = m->last; n && n != head; n = n->parent) {
1.49 kristaps 1193: if (MDOC_BLOCK == n->type &&
1194: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1195: ! (MDOC_VALID & n->flags)) {
1.47 kristaps 1196: n->pending = head;
1197: return(1);
1198: }
1199: }
1200:
1.45 kristaps 1201: /* Close out scopes to remain in a consistent state. */
1202:
1.32 kristaps 1203: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1204: return(0);
1.32 kristaps 1205: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1206: return(0);
1207:
1.77 kristaps 1208: out:
1209: if ( ! (MDOC_FREECOL & m->flags))
1210: return(1);
1211:
1212: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1213: return(0);
1214: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1215: return(0);
1216:
1217: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1218: return(1);
1219: }
1220:
1221:
1222: static int
1223: blk_part_imp(MACRO_PROT_ARGS)
1224: {
1.63 kristaps 1225: int la, nl;
1.53 kristaps 1226: enum mdoct ntok;
1.55 kristaps 1227: enum margserr ac;
1.1 kristaps 1228: char *p;
1.43 kristaps 1229: struct mdoc_node *blk; /* saved block context */
1230: struct mdoc_node *body; /* saved body context */
1231: struct mdoc_node *n;
1.1 kristaps 1232:
1.63 kristaps 1233: nl = MDOC_NEWLINE & m->flags;
1234:
1.43 kristaps 1235: /*
1236: * A macro that spans to the end of the line. This is generally
1237: * (but not necessarily) called as the first macro. The block
1238: * has a head as the immediate child, which is always empty,
1239: * followed by zero or more opening punctuation nodes, then the
1240: * body (which may be empty, depending on the macro), then zero
1241: * or more closing punctuation nodes.
1242: */
1.32 kristaps 1243:
1244: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1245: return(0);
1.43 kristaps 1246:
1.32 kristaps 1247: blk = m->last;
1.43 kristaps 1248:
1.32 kristaps 1249: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1250: return(0);
1.32 kristaps 1251: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1252: return(0);
1253:
1.43 kristaps 1254: /*
1255: * Open the body scope "on-demand", that is, after we've
1256: * processed all our the leading delimiters (open parenthesis,
1257: * etc.).
1258: */
1.1 kristaps 1259:
1.43 kristaps 1260: for (body = NULL; ; ) {
1.32 kristaps 1261: la = *pos;
1.53 kristaps 1262: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.43 kristaps 1263:
1.53 kristaps 1264: if (ARGS_ERROR == ac)
1.1 kristaps 1265: return(0);
1.53 kristaps 1266: if (ARGS_EOLN == ac)
1.43 kristaps 1267: break;
1.53 kristaps 1268: if (ARGS_PUNCT == ac)
1.1 kristaps 1269: break;
1270:
1.53 kristaps 1271: if (NULL == body && ARGS_QWORD != ac &&
1.105 kristaps 1272: DELIM_OPEN == mdoc_isdelim(p)) {
1273: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.1 kristaps 1274: return(0);
1275: continue;
1276: }
1277:
1.43 kristaps 1278: if (NULL == body) {
1279: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1280: return(0);
1281: body = m->last;
1282: }
1283:
1.54 kristaps 1284: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1285:
1286: if (MDOC_MAX == ntok) {
1.105 kristaps 1287: if ( ! dword(m, line, la, p, DELIM_MAX))
1.43 kristaps 1288: return(0);
1.53 kristaps 1289: continue;
1290: }
1.43 kristaps 1291:
1.82 kristaps 1292: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1293: return(0);
1.53 kristaps 1294: break;
1.1 kristaps 1295: }
1296:
1.43 kristaps 1297: /* Clean-ups to leave in a consistent state. */
1298:
1.44 kristaps 1299: if (NULL == body) {
1300: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1301: return(0);
1302: body = m->last;
1.64 kristaps 1303: }
1304:
1305: for (n = body->child; n && n->next; n = n->next)
1306: /* Do nothing. */ ;
1307:
1308: /*
1309: * End of sentence spacing: if the last node is a text node and
1310: * has a trailing period, then mark it as being end-of-sentence.
1311: */
1312:
1313: if (n && MDOC_TEXT == n->type && n->string)
1.93 schwarze 1314: if (mandoc_eos(n->string, strlen(n->string), 1))
1.64 kristaps 1315: n->flags |= MDOC_EOS;
1316:
1.109 kristaps 1317: /* Up-propagate the end-of-space flag. */
1.64 kristaps 1318:
1319: if (n && (MDOC_EOS & n->flags)) {
1320: body->flags |= MDOC_EOS;
1321: body->parent->flags |= MDOC_EOS;
1.44 kristaps 1322: }
1.43 kristaps 1323:
1.83 schwarze 1324: /*
1325: * If there is an open sub-block requiring explicit close-out,
1326: * postpone closing out the current block
1327: * until the rew_sub() call closing out the sub-block.
1328: */
1329: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1330: if (MDOC_BLOCK == n->type &&
1331: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1332: ! (MDOC_VALID & n->flags)) {
1.98 kristaps 1333: make_pending(n, tok, m, line, ppos);
1.83 schwarze 1334: if ( ! mdoc_endbody_alloc(m, line, ppos,
1335: tok, body, ENDBODY_NOSPACE))
1336: return(0);
1337: return(1);
1338: }
1339: }
1340:
1.32 kristaps 1341: /*
1342: * If we can't rewind to our body, then our scope has already
1343: * been closed by another macro (like `Oc' closing `Op'). This
1344: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1345: * crufty use of `Op' breakage.
1.1 kristaps 1346: */
1.103 kristaps 1347: if (n != body)
1.104 kristaps 1348: mandoc_vmsg(MANDOCERR_SCOPENEST, m->parse, line, ppos,
1.103 kristaps 1349: "%s broken", mdoc_macronames[tok]);
1.43 kristaps 1350:
1.83 schwarze 1351: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.32 kristaps 1352: return(0);
1.1 kristaps 1353:
1.32 kristaps 1354: /* Standard appending of delimiters. */
1.1 kristaps 1355:
1.63 kristaps 1356: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1357: return(0);
1358:
1.32 kristaps 1359: /* Rewind scope, if applicable. */
1.1 kristaps 1360:
1.83 schwarze 1361: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1362: return(0);
1363:
1364: return(1);
1365: }
1366:
1367:
1368: static int
1369: blk_part_exp(MACRO_PROT_ARGS)
1370: {
1.60 kristaps 1371: int la, nl;
1.55 kristaps 1372: enum margserr ac;
1.43 kristaps 1373: struct mdoc_node *head; /* keep track of head */
1374: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1375: char *p;
1.53 kristaps 1376: enum mdoct ntok;
1.1 kristaps 1377:
1.60 kristaps 1378: nl = MDOC_NEWLINE & m->flags;
1379:
1.43 kristaps 1380: /*
1381: * The opening of an explicit macro having zero or more leading
1382: * punctuation nodes; a head with optional single element (the
1383: * case of `Eo'); and a body that may be empty.
1384: */
1.32 kristaps 1385:
1386: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1387: return(0);
1.32 kristaps 1388:
1.43 kristaps 1389: for (head = body = NULL; ; ) {
1.32 kristaps 1390: la = *pos;
1.53 kristaps 1391: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1392:
1.53 kristaps 1393: if (ARGS_ERROR == ac)
1.1 kristaps 1394: return(0);
1.53 kristaps 1395: if (ARGS_PUNCT == ac)
1.1 kristaps 1396: break;
1.53 kristaps 1397: if (ARGS_EOLN == ac)
1.1 kristaps 1398: break;
1.43 kristaps 1399:
1400: /* Flush out leading punctuation. */
1401:
1.53 kristaps 1402: if (NULL == head && ARGS_QWORD != ac &&
1.105 kristaps 1403: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1404: assert(NULL == body);
1.105 kristaps 1405: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.43 kristaps 1406: return(0);
1407: continue;
1408: }
1409:
1410: if (NULL == head) {
1411: assert(NULL == body);
1412: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1413: return(0);
1.43 kristaps 1414: head = m->last;
1.1 kristaps 1415: }
1416:
1.43 kristaps 1417: /*
1418: * `Eo' gobbles any data into the head, but most other
1419: * macros just immediately close out and begin the body.
1420: */
1421:
1422: if (NULL == body) {
1423: assert(head);
1424: /* No check whether it's a macro! */
1425: if (MDOC_Eo == tok)
1.105 kristaps 1426: if ( ! dword(m, line, la, p, DELIM_MAX))
1.43 kristaps 1427: return(0);
1428:
1.32 kristaps 1429: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1430: return(0);
1.32 kristaps 1431: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1432: return(0);
1.43 kristaps 1433: body = m->last;
1434:
1435: if (MDOC_Eo == tok)
1436: continue;
1.1 kristaps 1437: }
1.43 kristaps 1438:
1439: assert(NULL != head && NULL != body);
1440:
1.54 kristaps 1441: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1442:
1443: if (MDOC_MAX == ntok) {
1.105 kristaps 1444: if ( ! dword(m, line, la, p, DELIM_MAX))
1.43 kristaps 1445: return(0);
1.53 kristaps 1446: continue;
1.43 kristaps 1447: }
1448:
1.82 kristaps 1449: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1450: return(0);
1.53 kristaps 1451: break;
1.1 kristaps 1452: }
1453:
1.43 kristaps 1454: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1455:
1.112 schwarze 1456: if (NULL == head)
1.43 kristaps 1457: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1458: return(0);
1459:
1460: if (NULL == body) {
1.32 kristaps 1461: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1462: return(0);
1.32 kristaps 1463: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1464: return(0);
1465: }
1466:
1.32 kristaps 1467: /* Standard appending of delimiters. */
1468:
1.60 kristaps 1469: if ( ! nl)
1.1 kristaps 1470: return(1);
1.32 kristaps 1471: return(append_delims(m, line, pos, buf));
1.1 kristaps 1472: }
1473:
1474:
1.61 kristaps 1475: /* ARGSUSED */
1.1 kristaps 1476: static int
1477: in_line_argn(MACRO_PROT_ARGS)
1478: {
1.60 kristaps 1479: int la, flushed, j, maxargs, nl;
1.55 kristaps 1480: enum margserr ac;
1.56 kristaps 1481: enum margverr av;
1.53 kristaps 1482: struct mdoc_arg *arg;
1483: char *p;
1484: enum mdoct ntok;
1.1 kristaps 1485:
1.60 kristaps 1486: nl = MDOC_NEWLINE & m->flags;
1487:
1.46 kristaps 1488: /*
1489: * A line macro that has a fixed number of arguments (maxargs).
1490: * Only open the scope once the first non-leading-punctuation is
1491: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1492: * keep it open until the maximum number of arguments are
1493: * exhausted.
1494: */
1.1 kristaps 1495:
1496: switch (tok) {
1497: case (MDOC_Ap):
1498: /* FALLTHROUGH */
1499: case (MDOC_No):
1500: /* FALLTHROUGH */
1501: case (MDOC_Ns):
1502: /* FALLTHROUGH */
1503: case (MDOC_Ux):
1504: maxargs = 0;
1505: break;
1.101 kristaps 1506: case (MDOC_Bx):
1507: /* FALLTHROUGH */
1.42 kristaps 1508: case (MDOC_Xr):
1509: maxargs = 2;
1510: break;
1.1 kristaps 1511: default:
1512: maxargs = 1;
1513: break;
1514: }
1515:
1.46 kristaps 1516: for (arg = NULL; ; ) {
1.32 kristaps 1517: la = *pos;
1.56 kristaps 1518: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1519:
1.56 kristaps 1520: if (ARGV_WORD == av) {
1.32 kristaps 1521: *pos = la;
1.1 kristaps 1522: break;
1523: }
1524:
1.56 kristaps 1525: if (ARGV_EOLN == av)
1.1 kristaps 1526: break;
1.56 kristaps 1527: if (ARGV_ARG == av)
1.1 kristaps 1528: continue;
1529:
1530: mdoc_argv_free(arg);
1531: return(0);
1532: }
1533:
1.46 kristaps 1534: for (flushed = j = 0; ; ) {
1.32 kristaps 1535: la = *pos;
1.53 kristaps 1536: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1537:
1.53 kristaps 1538: if (ARGS_ERROR == ac)
1.1 kristaps 1539: return(0);
1.53 kristaps 1540: if (ARGS_PUNCT == ac)
1.1 kristaps 1541: break;
1.53 kristaps 1542: if (ARGS_EOLN == ac)
1.1 kristaps 1543: break;
1544:
1.46 kristaps 1545: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.105 kristaps 1546: ARGS_QWORD != ac && 0 == j &&
1547: DELIM_OPEN == mdoc_isdelim(p)) {
1548: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.46 kristaps 1549: return(0);
1550: continue;
1551: } else if (0 == j)
1552: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1553: return(0);
1554:
1555: if (j == maxargs && ! flushed) {
1556: if ( ! rew_elem(m, tok))
1557: return(0);
1558: flushed = 1;
1559: }
1560:
1.54 kristaps 1561: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1562:
1563: if (MDOC_MAX != ntok) {
1.32 kristaps 1564: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1565: return(0);
1566: flushed = 1;
1.82 kristaps 1567: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1568: return(0);
1.46 kristaps 1569: j++;
1.1 kristaps 1570: break;
1571: }
1572:
1573: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1574: ARGS_QWORD != ac &&
1.67 schwarze 1575: ! flushed &&
1.105 kristaps 1576: DELIM_NONE != mdoc_isdelim(p)) {
1.32 kristaps 1577: if ( ! rew_elem(m, tok))
1.1 kristaps 1578: return(0);
1579: flushed = 1;
1580: }
1.42 kristaps 1581:
1.105 kristaps 1582: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1583: return(0);
1.46 kristaps 1584: j++;
1.1 kristaps 1585: }
1586:
1.46 kristaps 1587: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1588: return(0);
1589:
1590: /* Close out in a consistent state. */
1.32 kristaps 1591:
1592: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1593: return(0);
1.60 kristaps 1594: if ( ! nl)
1.1 kristaps 1595: return(1);
1.32 kristaps 1596: return(append_delims(m, line, pos, buf));
1.1 kristaps 1597: }
1598:
1599:
1600: static int
1601: in_line_eoln(MACRO_PROT_ARGS)
1602: {
1.56 kristaps 1603: int la;
1.55 kristaps 1604: enum margserr ac;
1.56 kristaps 1605: enum margverr av;
1.53 kristaps 1606: struct mdoc_arg *arg;
1607: char *p;
1608: enum mdoct ntok;
1.1 kristaps 1609:
1610: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1611:
1.90 schwarze 1612: if (tok == MDOC_Pp)
1613: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1614:
1.32 kristaps 1615: /* Parse macro arguments. */
1.1 kristaps 1616:
1.32 kristaps 1617: for (arg = NULL; ; ) {
1.1 kristaps 1618: la = *pos;
1.56 kristaps 1619: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1620:
1.56 kristaps 1621: if (ARGV_WORD == av) {
1.1 kristaps 1622: *pos = la;
1623: break;
1624: }
1.56 kristaps 1625: if (ARGV_EOLN == av)
1.1 kristaps 1626: break;
1.56 kristaps 1627: if (ARGV_ARG == av)
1.1 kristaps 1628: continue;
1629:
1630: mdoc_argv_free(arg);
1631: return(0);
1632: }
1633:
1.32 kristaps 1634: /* Open element scope. */
1635:
1636: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1637: return(0);
1638:
1.32 kristaps 1639: /* Parse argument terms. */
1.1 kristaps 1640:
1641: for (;;) {
1642: la = *pos;
1.53 kristaps 1643: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1644:
1.53 kristaps 1645: if (ARGS_ERROR == ac)
1.1 kristaps 1646: return(0);
1.53 kristaps 1647: if (ARGS_EOLN == ac)
1.1 kristaps 1648: break;
1649:
1.53 kristaps 1650: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1651:
1.53 kristaps 1652: if (MDOC_MAX == ntok) {
1.105 kristaps 1653: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1654: return(0);
1.53 kristaps 1655: continue;
1656: }
1.1 kristaps 1657:
1.53 kristaps 1658: if ( ! rew_elem(m, tok))
1.1 kristaps 1659: return(0);
1.82 kristaps 1660: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1661: }
1662:
1.32 kristaps 1663: /* Close out (no delimiters). */
1664:
1665: return(rew_elem(m, tok));
1.1 kristaps 1666: }
1667:
1668:
1669: /* ARGSUSED */
1670: static int
1.41 kristaps 1671: ctx_synopsis(MACRO_PROT_ARGS)
1672: {
1.60 kristaps 1673: int nl;
1674:
1675: nl = MDOC_NEWLINE & m->flags;
1.41 kristaps 1676:
1677: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.90 schwarze 1678: if ( ! (MDOC_SYNOPSIS & m->flags))
1.82 kristaps 1679: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1680:
1681: /* If we're a nested call, same place. */
1.60 kristaps 1682: if ( ! nl)
1.82 kristaps 1683: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1684:
1685: /*
1686: * XXX: this will open a block scope; however, if later we end
1687: * up formatting the block scope, then child nodes will inherit
1688: * the formatting. Be careful.
1689: */
1.88 schwarze 1690: if (MDOC_Nm == tok)
1691: return(blk_full(m, tok, line, ppos, pos, buf));
1692: assert(MDOC_Vt == tok);
1.82 kristaps 1693: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.41 kristaps 1694: }
1695:
1696:
1697: /* ARGSUSED */
1698: static int
1.1 kristaps 1699: obsolete(MACRO_PROT_ARGS)
1700: {
1701:
1.103 kristaps 1702: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS);
1703: return(1);
1.1 kristaps 1704: }
1705:
1706:
1.24 kristaps 1707: /*
1708: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1709: * They're unusual because they're basically free-form text until a
1710: * macro is encountered.
1711: */
1.1 kristaps 1712: static int
1.82 kristaps 1713: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1714: {
1.53 kristaps 1715: int la, pos;
1.75 kristaps 1716: enum margserr ac;
1.53 kristaps 1717: enum mdoct ntok;
1718: char *p;
1.1 kristaps 1719:
1.24 kristaps 1720: for (pos = ppos; ; ) {
1721: la = pos;
1.1 kristaps 1722:
1.107 kristaps 1723: ac = mdoc_zargs(m, line, &pos, buf, &p);
1.1 kristaps 1724:
1.75 kristaps 1725: if (ARGS_ERROR == ac)
1.24 kristaps 1726: return(0);
1.75 kristaps 1727: if (ARGS_EOLN == ac)
1.24 kristaps 1728: break;
1.1 kristaps 1729:
1.75 kristaps 1730: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1731:
1.53 kristaps 1732: if (MDOC_MAX == ntok) {
1.105 kristaps 1733: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1734: return(0);
1.53 kristaps 1735: continue;
1736: }
1.1 kristaps 1737:
1.82 kristaps 1738: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1739: return(0);
1.53 kristaps 1740: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1741: }
1742:
1743: return(1);
1744: }
1.24 kristaps 1745:
1746:
1.79 kristaps 1747: /* ARGSUSED */
1.75 kristaps 1748: static int
1749: phrase_ta(MACRO_PROT_ARGS)
1750: {
1751: int la;
1752: enum mdoct ntok;
1753: enum margserr ac;
1754: char *p;
1755:
1756: /*
1757: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1758: * it should simply error out with ARGSLOST.
1759: */
1760:
1761: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1762: return(0);
1763: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1764: return(0);
1765:
1766: for (;;) {
1767: la = *pos;
1.107 kristaps 1768: ac = mdoc_zargs(m, line, pos, buf, &p);
1.75 kristaps 1769:
1770: if (ARGS_ERROR == ac)
1771: return(0);
1772: if (ARGS_EOLN == ac)
1773: break;
1774:
1775: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1776:
1777: if (MDOC_MAX == ntok) {
1.105 kristaps 1778: if ( ! dword(m, line, la, p, DELIM_MAX))
1.75 kristaps 1779: return(0);
1780: continue;
1781: }
1782:
1.82 kristaps 1783: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.75 kristaps 1784: return(0);
1785: return(append_delims(m, line, pos, buf));
1786: }
1787:
1788: return(1);
1789: }
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