Annotation of mandoc/mdoc_macro.c, Revision 1.119
1.119 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.118 2012/11/16 13:40:36 schwarze Exp $ */
1.1 kristaps 2: /*
1.116 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.117 schwarze 4: * Copyright (c) 2010, 2012 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 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
1.119 ! schwarze 206: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 207: {
208: struct mdoc_node *n;
209:
210: /* Scan for open explicit scopes. */
211:
1.119 ! schwarze 212: n = MDOC_VALID & mdoc->last->flags ?
! 213: mdoc->last->parent : mdoc->last;
1.1 kristaps 214:
1.94 schwarze 215: for ( ; n; n = n->parent)
216: if (MDOC_BLOCK == n->type &&
217: MDOC_EXPLICIT & mdoc_macros[n->tok].flags)
1.119 ! schwarze 218: mdoc_nmsg(mdoc, n, MANDOCERR_SCOPEEXIT);
1.1 kristaps 219:
1.32 kristaps 220: /* Rewind to the first. */
221:
1.119 ! schwarze 222: return(rew_last(mdoc, mdoc->first));
1.1 kristaps 223: }
224:
1.32 kristaps 225:
226: /*
227: * Look up a macro from within a subsequent context.
228: */
1.53 kristaps 229: static enum mdoct
1.58 kristaps 230: lookup(enum mdoct from, const char *p)
1.28 kristaps 231: {
232:
233: if ( ! (MDOC_PARSED & mdoc_macros[from].flags))
234: return(MDOC_MAX);
1.35 kristaps 235: return(lookup_raw(p));
1.28 kristaps 236: }
237:
238:
1.32 kristaps 239: /*
240: * Lookup a macro following the initial line macro.
241: */
1.53 kristaps 242: static enum mdoct
1.35 kristaps 243: lookup_raw(const char *p)
1.1 kristaps 244: {
1.58 kristaps 245: enum mdoct res;
1.1 kristaps 246:
1.34 kristaps 247: if (MDOC_MAX == (res = mdoc_hash_find(p)))
1.28 kristaps 248: return(MDOC_MAX);
249: if (MDOC_CALLABLE & mdoc_macros[res].flags)
1.1 kristaps 250: return(res);
251: return(MDOC_MAX);
252: }
253:
254:
255: static int
1.32 kristaps 256: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 257: {
1.100 kristaps 258: struct mdoc_node *n, *np;
1.1 kristaps 259:
260: assert(to);
261: mdoc->next = MDOC_NEXT_SIBLING;
262:
263: /* LINTED */
264: while (mdoc->last != to) {
1.100 kristaps 265: /*
266: * Save the parent here, because we may delete the
1.119 ! schwarze 267: * mdoc->last node in the post-validation phase and reset
! 268: * it to mdoc->last->parent, causing a step in the closing
1.100 kristaps 269: * out to be lost.
270: */
271: np = mdoc->last->parent;
1.1 kristaps 272: if ( ! mdoc_valid_post(mdoc))
273: return(0);
1.99 kristaps 274: n = mdoc->last;
1.100 kristaps 275: mdoc->last = np;
1.1 kristaps 276: assert(mdoc->last);
1.99 kristaps 277: mdoc->last->last = n;
1.1 kristaps 278: }
279:
1.97 kristaps 280: return(mdoc_valid_post(mdoc));
1.1 kristaps 281: }
282:
283:
1.32 kristaps 284: /*
1.84 schwarze 285: * For a block closing macro, return the corresponding opening one.
286: * Otherwise, return the macro itself.
1.32 kristaps 287: */
1.47 kristaps 288: static enum mdoct
289: rew_alt(enum mdoct tok)
1.1 kristaps 290: {
291: switch (tok) {
292: case (MDOC_Ac):
293: return(MDOC_Ao);
294: case (MDOC_Bc):
295: return(MDOC_Bo);
296: case (MDOC_Brc):
297: return(MDOC_Bro);
298: case (MDOC_Dc):
299: return(MDOC_Do);
300: case (MDOC_Ec):
301: return(MDOC_Eo);
302: case (MDOC_Ed):
303: return(MDOC_Bd);
304: case (MDOC_Ef):
305: return(MDOC_Bf);
306: case (MDOC_Ek):
307: return(MDOC_Bk);
308: case (MDOC_El):
309: return(MDOC_Bl);
310: case (MDOC_Fc):
311: return(MDOC_Fo);
312: case (MDOC_Oc):
313: return(MDOC_Oo);
314: case (MDOC_Pc):
315: return(MDOC_Po);
316: case (MDOC_Qc):
317: return(MDOC_Qo);
318: case (MDOC_Re):
319: return(MDOC_Rs);
320: case (MDOC_Sc):
321: return(MDOC_So);
322: case (MDOC_Xc):
323: return(MDOC_Xo);
324: default:
1.84 schwarze 325: return(tok);
1.1 kristaps 326: }
327: /* NOTREACHED */
328: }
329:
330:
1.84 schwarze 331: /*
332: * Rewinding to tok, how do we have to handle *p?
333: * REWIND_NONE: *p would delimit tok, but no tok scope is open
334: * inside *p, so there is no need to rewind anything at all.
335: * REWIND_THIS: *p matches tok, so rewind *p and nothing else.
336: * REWIND_MORE: *p is implicit, rewind it and keep searching for tok.
1.98 kristaps 337: * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p.
1.84 schwarze 338: * REWIND_LATER: *p is explicit and still open, postpone rewinding.
339: * REWIND_ERROR: No tok block is open at all.
1.1 kristaps 340: */
1.51 kristaps 341: static enum rew
1.47 kristaps 342: rew_dohalt(enum mdoct tok, enum mdoc_type type,
343: const struct mdoc_node *p)
1.1 kristaps 344: {
345:
1.86 schwarze 346: /*
347: * No matching token, no delimiting block, no broken block.
348: * This can happen when full implicit macros are called for
349: * the first time but try to rewind their previous
350: * instance anyway.
351: */
1.1 kristaps 352: if (MDOC_ROOT == p->type)
1.84 schwarze 353: return(MDOC_BLOCK == type &&
354: MDOC_EXPLICIT & mdoc_macros[tok].flags ?
355: REWIND_ERROR : REWIND_NONE);
1.86 schwarze 356:
357: /*
358: * When starting to rewind, skip plain text
359: * and nodes that have already been rewound.
360: */
1.84 schwarze 361: if (MDOC_TEXT == p->type || MDOC_VALID & p->flags)
362: return(REWIND_MORE);
363:
1.86 schwarze 364: /*
365: * The easiest case: Found a matching token.
366: * This applies to both blocks and elements.
367: */
1.84 schwarze 368: tok = rew_alt(tok);
369: if (tok == p->tok)
370: return(p->end ? REWIND_NONE :
371: type == p->type ? REWIND_THIS : REWIND_MORE);
372:
1.86 schwarze 373: /*
374: * While elements do require rewinding for themselves,
375: * they never affect rewinding of other nodes.
376: */
1.84 schwarze 377: if (MDOC_ELEM == p->type)
378: return(REWIND_MORE);
1.1 kristaps 379:
1.86 schwarze 380: /*
381: * Blocks delimited by our target token get REWIND_MORE.
382: * Blocks delimiting our target token get REWIND_NONE.
383: */
1.1 kristaps 384: switch (tok) {
1.84 schwarze 385: case (MDOC_Bl):
386: if (MDOC_It == p->tok)
387: return(REWIND_MORE);
1.1 kristaps 388: break;
389: case (MDOC_It):
390: if (MDOC_BODY == p->type && MDOC_Bl == p->tok)
1.84 schwarze 391: return(REWIND_NONE);
1.1 kristaps 392: break;
1.84 schwarze 393: /*
394: * XXX Badly nested block handling still fails badly
395: * when one block is breaking two blocks of the same type.
396: * This is an incomplete and extremely ugly workaround,
397: * required to let the OpenBSD tree build.
398: */
399: case (MDOC_Oo):
400: if (MDOC_Op == p->tok)
401: return(REWIND_MORE);
1.1 kristaps 402: break;
1.88 schwarze 403: case (MDOC_Nm):
404: return(REWIND_NONE);
1.19 kristaps 405: case (MDOC_Nd):
406: /* FALLTHROUGH */
1.1 kristaps 407: case (MDOC_Ss):
408: if (MDOC_BODY == p->type && MDOC_Sh == p->tok)
1.84 schwarze 409: return(REWIND_NONE);
1.1 kristaps 410: /* FALLTHROUGH */
411: case (MDOC_Sh):
1.84 schwarze 412: if (MDOC_Nd == p->tok || MDOC_Ss == p->tok ||
413: MDOC_Sh == p->tok)
414: return(REWIND_MORE);
1.1 kristaps 415: break;
416: default:
417: break;
418: }
419:
1.86 schwarze 420: /*
421: * Default block rewinding rules.
1.88 schwarze 422: * In particular, always skip block end markers,
423: * and let all blocks rewind Nm children.
1.86 schwarze 424: */
1.88 schwarze 425: if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok ||
426: (MDOC_BLOCK == p->type &&
1.86 schwarze 427: ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)))
428: return(REWIND_MORE);
429:
430: /*
1.98 kristaps 431: * By default, closing out full blocks
432: * forces closing of broken explicit blocks,
433: * while closing out partial blocks
434: * allows delayed rewinding by default.
1.86 schwarze 435: */
1.98 kristaps 436: return (&blk_full == mdoc_macros[tok].fp ?
437: REWIND_FORCE : REWIND_LATER);
1.1 kristaps 438: }
439:
440:
441: static int
1.47 kristaps 442: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 443: {
444: struct mdoc_node *n;
445:
446: n = mdoc->last;
447: if (MDOC_ELEM != n->type)
448: n = n->parent;
449: assert(MDOC_ELEM == n->type);
450: assert(tok == n->tok);
451:
452: return(rew_last(mdoc, n));
453: }
454:
455:
1.83 schwarze 456: /*
457: * We are trying to close a block identified by tok,
458: * but the child block *broken is still open.
459: * Thus, postpone closing the tok block
460: * until the rew_sub call closing *broken.
461: */
462: static int
463: make_pending(struct mdoc_node *broken, enum mdoct tok,
1.119 ! schwarze 464: struct mdoc *mdoc, int line, int ppos)
1.83 schwarze 465: {
466: struct mdoc_node *breaker;
467:
468: /*
469: * Iterate backwards, searching for the block matching tok,
470: * that is, the block breaking the *broken block.
471: */
472: for (breaker = broken->parent; breaker; breaker = breaker->parent) {
473:
474: /*
475: * If the *broken block had already been broken before
476: * and we encounter its breaker, make the tok block
477: * pending on the inner breaker.
478: * Graphically, "[A breaker=[B broken=[C->B B] tok=A] C]"
479: * becomes "[A broken=[B [C->B B] tok=A] C]"
480: * and finally "[A [B->A [C->B B] A] C]".
481: */
482: if (breaker == broken->pending) {
483: broken = breaker;
484: continue;
485: }
486:
1.84 schwarze 487: if (REWIND_THIS != rew_dohalt(tok, MDOC_BLOCK, breaker))
1.83 schwarze 488: continue;
489: if (MDOC_BODY == broken->type)
490: broken = broken->parent;
491:
492: /*
493: * Found the breaker.
494: * If another, outer breaker is already pending on
495: * the *broken block, we must not clobber the link
496: * to the outer breaker, but make it pending on the
497: * new, now inner breaker.
498: * Graphically, "[A breaker=[B broken=[C->A A] tok=B] C]"
499: * becomes "[A breaker=[B->A broken=[C A] tok=B] C]"
500: * and finally "[A [B->A [C->B A] B] C]".
501: */
502: if (broken->pending) {
503: struct mdoc_node *taker;
504:
505: /*
506: * If the breaker had also been broken before,
507: * it cannot take on the outer breaker itself,
508: * but must hand it on to its own breakers.
509: * Graphically, this is the following situation:
510: * "[A [B breaker=[C->B B] broken=[D->A A] tok=C] D]"
511: * "[A taker=[B->A breaker=[C->B B] [D->C A] C] D]"
512: */
513: taker = breaker;
514: while (taker->pending)
515: taker = taker->pending;
516: taker->pending = broken->pending;
517: }
518: broken->pending = breaker;
1.119 ! schwarze 519: mandoc_vmsg(MANDOCERR_SCOPENEST, mdoc->parse, line, ppos,
1.104 kristaps 520: "%s breaks %s", mdoc_macronames[tok],
521: mdoc_macronames[broken->tok]);
1.83 schwarze 522: return(1);
523: }
524:
525: /*
526: * Found no matching block for tok.
527: * Are you trying to close a block that is not open?
528: */
529: return(0);
530: }
531:
1.84 schwarze 532:
1.1 kristaps 533: static int
1.119 ! schwarze 534: rew_sub(enum mdoc_type t, struct mdoc *mdoc,
1.47 kristaps 535: enum mdoct tok, int line, int ppos)
1.1 kristaps 536: {
537: struct mdoc_node *n;
538:
1.119 ! schwarze 539: n = mdoc->last;
1.84 schwarze 540: while (n) {
541: switch (rew_dohalt(tok, t, n)) {
542: case (REWIND_NONE):
543: return(1);
544: case (REWIND_THIS):
545: break;
1.98 kristaps 546: case (REWIND_FORCE):
1.119 ! schwarze 547: mandoc_vmsg(MANDOCERR_SCOPEBROKEN, mdoc->parse,
1.104 kristaps 548: line, ppos, "%s breaks %s",
549: mdoc_macronames[tok],
550: mdoc_macronames[n->tok]);
1.98 kristaps 551: /* FALLTHROUGH */
1.84 schwarze 552: case (REWIND_MORE):
553: n = n->parent;
554: continue;
555: case (REWIND_LATER):
1.119 ! schwarze 556: if (make_pending(n, tok, mdoc, line, ppos) ||
1.98 kristaps 557: MDOC_BLOCK != t)
558: return(1);
559: /* FALLTHROUGH */
1.84 schwarze 560: case (REWIND_ERROR):
1.119 ! schwarze 561: mdoc_pmsg(mdoc, line, ppos, MANDOCERR_NOSCOPE);
1.98 kristaps 562: return(1);
1.32 kristaps 563: }
1.84 schwarze 564: break;
1.1 kristaps 565: }
566:
567: assert(n);
1.119 ! schwarze 568: if ( ! rew_last(mdoc, n))
1.47 kristaps 569: return(0);
570:
571: /*
1.83 schwarze 572: * The current block extends an enclosing block.
573: * Now that the current block ends, close the enclosing block, too.
1.47 kristaps 574: */
1.83 schwarze 575: while (NULL != (n = n->pending)) {
1.119 ! schwarze 576: if ( ! rew_last(mdoc, n))
1.47 kristaps 577: return(0);
1.83 schwarze 578: if (MDOC_HEAD == n->type &&
1.119 ! schwarze 579: ! mdoc_body_alloc(mdoc, n->line, n->pos, n->tok))
1.47 kristaps 580: return(0);
581: }
582:
583: return(1);
1.1 kristaps 584: }
585:
1.105 kristaps 586: /*
587: * Allocate a word and check whether it's punctuation or not.
588: * Punctuation consists of those tokens found in mdoc_isdelim().
589: */
590: static int
1.119 ! schwarze 591: dword(struct mdoc *mdoc, int line,
1.105 kristaps 592: int col, const char *p, enum mdelim d)
593: {
594:
595: if (DELIM_MAX == d)
596: d = mdoc_isdelim(p);
597:
1.119 ! schwarze 598: if ( ! mdoc_word_alloc(mdoc, line, col, p))
1.105 kristaps 599: return(0);
600:
601: if (DELIM_OPEN == d)
1.119 ! schwarze 602: mdoc->last->flags |= MDOC_DELIMO;
1.108 schwarze 603:
604: /*
605: * Closing delimiters only suppress the preceding space
606: * when they follow something, not when they start a new
607: * block or element, and not when they follow `No'.
608: *
609: * XXX Explicitly special-casing MDOC_No here feels
610: * like a layering violation. Find a better way
611: * and solve this in the code related to `No'!
612: */
613:
1.119 ! schwarze 614: else if (DELIM_CLOSE == d && mdoc->last->prev &&
! 615: mdoc->last->prev->tok != MDOC_No)
! 616: mdoc->last->flags |= MDOC_DELIMC;
1.105 kristaps 617:
618: return(1);
619: }
1.1 kristaps 620:
621: static int
1.119 ! schwarze 622: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 623: {
1.66 kristaps 624: int la;
1.55 kristaps 625: enum margserr ac;
1.1 kristaps 626: char *p;
627:
1.66 kristaps 628: if ('\0' == buf[*pos])
1.1 kristaps 629: return(1);
630:
631: for (;;) {
1.66 kristaps 632: la = *pos;
1.119 ! schwarze 633: ac = mdoc_zargs(mdoc, line, pos, buf, &p);
1.1 kristaps 634:
1.53 kristaps 635: if (ARGS_ERROR == ac)
1.1 kristaps 636: return(0);
1.53 kristaps 637: else if (ARGS_EOLN == ac)
1.1 kristaps 638: break;
1.66 kristaps 639:
1.119 ! schwarze 640: dword(mdoc, line, la, p, DELIM_MAX);
1.66 kristaps 641:
642: /*
643: * If we encounter end-of-sentence symbols, then trigger
644: * the double-space.
645: *
1.109 kristaps 646: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 647: * the last symbol, such that `. )' will cause the
648: * correct double-spacing. However, (1) groff isn't
649: * smart enough to do this and (2) it would require
650: * knowing which symbols break this behaviour, for
1.109 kristaps 651: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 652: */
1.93 schwarze 653: if (mandoc_eos(p, strlen(p), 0))
1.119 ! schwarze 654: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 655: }
656:
657: return(1);
658: }
659:
660:
661: /*
662: * Close out block partial/full explicit.
663: */
664: static int
665: blk_exp_close(MACRO_PROT_ARGS)
666: {
1.83 schwarze 667: struct mdoc_node *body; /* Our own body. */
668: struct mdoc_node *later; /* A sub-block starting later. */
669: struct mdoc_node *n; /* For searching backwards. */
670:
1.60 kristaps 671: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 672: enum margserr ac;
1.83 schwarze 673: enum mdoct atok, ntok;
1.1 kristaps 674: char *p;
675:
1.119 ! schwarze 676: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 677:
1.1 kristaps 678: switch (tok) {
679: case (MDOC_Ec):
680: maxargs = 1;
681: break;
682: default:
683: maxargs = 0;
684: break;
685: }
686:
1.83 schwarze 687: /*
688: * Search backwards for beginnings of blocks,
689: * both of our own and of pending sub-blocks.
690: */
691: atok = rew_alt(tok);
692: body = later = NULL;
1.119 ! schwarze 693: for (n = mdoc->last; n; n = n->parent) {
1.83 schwarze 694: if (MDOC_VALID & n->flags)
695: continue;
696:
697: /* Remember the start of our own body. */
698: if (MDOC_BODY == n->type && atok == n->tok) {
1.87 kristaps 699: if (ENDBODY_NOT == n->end)
1.83 schwarze 700: body = n;
701: continue;
702: }
703:
1.88 schwarze 704: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.83 schwarze 705: continue;
706: if (atok == n->tok) {
707: assert(body);
708:
709: /*
710: * Found the start of our own block.
711: * When there is no pending sub block,
712: * just proceed to closing out.
713: */
714: if (NULL == later)
715: break;
716:
717: /*
718: * When there is a pending sub block,
719: * postpone closing out the current block
720: * until the rew_sub() closing out the sub-block.
721: */
1.119 ! schwarze 722: make_pending(later, tok, mdoc, line, ppos);
1.83 schwarze 723:
724: /*
725: * Mark the place where the formatting - but not
726: * the scope - of the current block ends.
727: */
1.119 ! schwarze 728: if ( ! mdoc_endbody_alloc(mdoc, line, ppos,
1.83 schwarze 729: atok, body, ENDBODY_SPACE))
730: return(0);
731: break;
732: }
733:
734: /*
735: * When finding an open sub block, remember the last
736: * open explicit block, or, in case there are only
737: * implicit ones, the first open implicit block.
738: */
739: if (later &&
740: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
741: continue;
1.118 schwarze 742: if (MDOC_It != n->tok)
1.83 schwarze 743: later = n;
744: }
745:
1.1 kristaps 746: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.68 kristaps 747: /* FIXME: do this in validate */
1.22 kristaps 748: if (buf[*pos])
1.119 ! schwarze 749: mdoc_pmsg(mdoc, line, ppos, MANDOCERR_ARGSLOST);
1.22 kristaps 750:
1.119 ! schwarze 751: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.22 kristaps 752: return(0);
1.119 ! schwarze 753: return(rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos));
1.1 kristaps 754: }
755:
1.119 ! schwarze 756: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.1 kristaps 757: return(0);
758:
1.83 schwarze 759: if (NULL == later && maxargs > 0)
1.119 ! schwarze 760: if ( ! mdoc_tail_alloc(mdoc, line, ppos, rew_alt(tok)))
1.1 kristaps 761: return(0);
762:
1.27 kristaps 763: for (flushed = j = 0; ; j++) {
1.1 kristaps 764: lastarg = *pos;
765:
766: if (j == maxargs && ! flushed) {
1.119 ! schwarze 767: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 768: return(0);
769: flushed = 1;
770: }
771:
1.119 ! schwarze 772: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 773:
1.53 kristaps 774: if (ARGS_ERROR == ac)
1.1 kristaps 775: return(0);
1.53 kristaps 776: if (ARGS_PUNCT == ac)
1.1 kristaps 777: break;
1.53 kristaps 778: if (ARGS_EOLN == ac)
1.1 kristaps 779: break;
780:
1.54 kristaps 781: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
782:
783: if (MDOC_MAX == ntok) {
1.119 ! schwarze 784: if ( ! dword(mdoc, line, lastarg, p, DELIM_MAX))
1.1 kristaps 785: return(0);
1.54 kristaps 786: continue;
787: }
1.1 kristaps 788:
1.54 kristaps 789: if ( ! flushed) {
1.119 ! schwarze 790: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.54 kristaps 791: return(0);
792: flushed = 1;
793: }
1.119 ! schwarze 794: if ( ! mdoc_macro(mdoc, ntok, line, lastarg, pos, buf))
1.1 kristaps 795: return(0);
1.54 kristaps 796: break;
1.1 kristaps 797: }
798:
1.119 ! schwarze 799: if ( ! flushed && ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 800: return(0);
801:
1.60 kristaps 802: if ( ! nl)
1.1 kristaps 803: return(1);
1.119 ! schwarze 804: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 805: }
806:
807:
808: static int
809: in_line(MACRO_PROT_ARGS)
810: {
1.70 kristaps 811: int la, scope, cnt, nc, nl;
1.56 kristaps 812: enum margverr av;
1.53 kristaps 813: enum mdoct ntok;
1.55 kristaps 814: enum margserr ac;
1.67 schwarze 815: enum mdelim d;
1.53 kristaps 816: struct mdoc_arg *arg;
817: char *p;
1.1 kristaps 818:
1.119 ! schwarze 819: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 820:
1.4 kristaps 821: /*
822: * Whether we allow ignored elements (those without content,
823: * usually because of reserved words) to squeak by.
824: */
1.45 kristaps 825:
1.4 kristaps 826: switch (tok) {
1.26 kristaps 827: case (MDOC_An):
828: /* FALLTHROUGH */
829: case (MDOC_Ar):
1.4 kristaps 830: /* FALLTHROUGH */
831: case (MDOC_Fl):
832: /* FALLTHROUGH */
1.96 kristaps 833: case (MDOC_Mt):
1.12 kristaps 834: /* FALLTHROUGH */
1.26 kristaps 835: case (MDOC_Nm):
836: /* FALLTHROUGH */
1.25 kristaps 837: case (MDOC_Pa):
1.4 kristaps 838: nc = 1;
839: break;
840: default:
841: nc = 0;
842: break;
843: }
844:
1.27 kristaps 845: for (arg = NULL;; ) {
1.1 kristaps 846: la = *pos;
1.119 ! schwarze 847: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 848:
1.56 kristaps 849: if (ARGV_WORD == av) {
1.1 kristaps 850: *pos = la;
851: break;
852: }
1.56 kristaps 853: if (ARGV_EOLN == av)
1.1 kristaps 854: break;
1.56 kristaps 855: if (ARGV_ARG == av)
1.1 kristaps 856: continue;
857:
858: mdoc_argv_free(arg);
859: return(0);
860: }
861:
1.70 kristaps 862: for (cnt = scope = 0;; ) {
1.1 kristaps 863: la = *pos;
1.119 ! schwarze 864: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 865:
1.53 kristaps 866: if (ARGS_ERROR == ac)
1.1 kristaps 867: return(0);
1.53 kristaps 868: if (ARGS_EOLN == ac)
1.1 kristaps 869: break;
1.53 kristaps 870: if (ARGS_PUNCT == ac)
1.1 kristaps 871: break;
872:
1.53 kristaps 873: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 874:
1.4 kristaps 875: /*
876: * In this case, we've located a submacro and must
877: * execute it. Close out scope, if open. If no
878: * elements have been generated, either create one (nc)
879: * or raise a warning.
880: */
1.1 kristaps 881:
1.53 kristaps 882: if (MDOC_MAX != ntok) {
1.119 ! schwarze 883: if (scope && ! rew_elem(mdoc, tok))
1.1 kristaps 884: return(0);
1.4 kristaps 885: if (nc && 0 == cnt) {
1.119 ! schwarze 886: if ( ! mdoc_elem_alloc(mdoc, line,
! 887: ppos, tok, arg))
1.3 kristaps 888: return(0);
1.119 ! schwarze 889: if ( ! rew_last(mdoc, mdoc->last))
1.12 kristaps 890: return(0);
1.7 kristaps 891: } else if ( ! nc && 0 == cnt) {
892: mdoc_argv_free(arg);
1.119 ! schwarze 893: mdoc_pmsg(mdoc, line, ppos,
! 894: MANDOCERR_MACROEMPTY);
1.7 kristaps 895: }
1.103 kristaps 896:
1.119 ! schwarze 897: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 898: return(0);
1.60 kristaps 899: if ( ! nl)
1.1 kristaps 900: return(1);
1.119 ! schwarze 901: return(append_delims(mdoc, line, pos, buf));
1.29 kristaps 902: }
1.1 kristaps 903:
1.4 kristaps 904: /*
905: * Non-quote-enclosed punctuation. Set up our scope, if
906: * a word; rewind the scope, if a delimiter; then append
907: * the word.
908: */
1.1 kristaps 909:
1.105 kristaps 910: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 911:
1.70 kristaps 912: if (DELIM_NONE != d) {
913: /*
914: * If we encounter closing punctuation, no word
915: * has been omitted, no scope is open, and we're
916: * allowed to have an empty element, then start
917: * a new scope. `Ar', `Fl', and `Li', only do
918: * this once per invocation. There may be more
919: * of these (all of them?).
920: */
921: if (0 == cnt && (nc || MDOC_Li == tok) &&
922: DELIM_CLOSE == d && ! scope) {
1.119 ! schwarze 923: if ( ! mdoc_elem_alloc(mdoc, line,
! 924: ppos, tok, arg))
1.70 kristaps 925: return(0);
926: if (MDOC_Ar == tok || MDOC_Li == tok ||
927: MDOC_Fl == tok)
928: cnt++;
929: scope = 1;
930: }
931: /*
932: * Close out our scope, if one is open, before
933: * any punctuation.
934: */
1.119 ! schwarze 935: if (scope && ! rew_elem(mdoc, tok))
1.1 kristaps 936: return(0);
1.70 kristaps 937: scope = 0;
938: } else if ( ! scope) {
1.119 ! schwarze 939: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 940: return(0);
1.70 kristaps 941: scope = 1;
1.1 kristaps 942: }
943:
1.67 schwarze 944: if (DELIM_NONE == d)
1.3 kristaps 945: cnt++;
1.105 kristaps 946:
1.119 ! schwarze 947: if ( ! dword(mdoc, line, la, p, d))
1.1 kristaps 948: return(0);
1.39 kristaps 949:
950: /*
951: * `Fl' macros have their scope re-opened with each new
952: * word so that the `-' can be added to each one without
953: * having to parse out spaces.
954: */
1.70 kristaps 955: if (scope && MDOC_Fl == tok) {
1.119 ! schwarze 956: if ( ! rew_elem(mdoc, tok))
1.39 kristaps 957: return(0);
1.70 kristaps 958: scope = 0;
1.39 kristaps 959: }
1.1 kristaps 960: }
961:
1.119 ! schwarze 962: if (scope && ! rew_elem(mdoc, tok))
1.1 kristaps 963: return(0);
1.4 kristaps 964:
965: /*
966: * If no elements have been collected and we're allowed to have
967: * empties (nc), open a scope and close it out. Otherwise,
968: * raise a warning.
969: */
1.45 kristaps 970:
1.4 kristaps 971: if (nc && 0 == cnt) {
1.119 ! schwarze 972: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.3 kristaps 973: return(0);
1.119 ! schwarze 974: if ( ! rew_last(mdoc, mdoc->last))
1.12 kristaps 975: return(0);
1.7 kristaps 976: } else if ( ! nc && 0 == cnt) {
977: mdoc_argv_free(arg);
1.119 ! schwarze 978: mdoc_pmsg(mdoc, line, ppos, MANDOCERR_MACROEMPTY);
1.7 kristaps 979: }
1.4 kristaps 980:
1.60 kristaps 981: if ( ! nl)
1.1 kristaps 982: return(1);
1.119 ! schwarze 983: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 984: }
985:
986:
987: static int
988: blk_full(MACRO_PROT_ARGS)
989: {
1.114 kristaps 990: int la, nl, nparsed;
1.1 kristaps 991: struct mdoc_arg *arg;
1.45 kristaps 992: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 993: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 994: struct mdoc_node *n;
1.74 kristaps 995: enum mdoc_type mtt;
1.53 kristaps 996: enum mdoct ntok;
1.59 kristaps 997: enum margserr ac, lac;
1.56 kristaps 998: enum margverr av;
1.1 kristaps 999: char *p;
1000:
1.119 ! schwarze 1001: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1002:
1.45 kristaps 1003: /* Close out prior implicit scope. */
1.19 kristaps 1004:
1.1 kristaps 1005: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.119 ! schwarze 1006: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.1 kristaps 1007: return(0);
1.119 ! schwarze 1008: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 1009: return(0);
1010: }
1011:
1.45 kristaps 1012: /*
1.109 kristaps 1013: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1014: * macro openings. Implicit ones first close out prior scope
1015: * (seen above). Delay opening the head until necessary to
1016: * allow leading punctuation to print. Special consideration
1017: * for `It -column', which has phrase-part syntax instead of
1018: * regular child nodes.
1019: */
1020:
1.1 kristaps 1021: for (arg = NULL;; ) {
1.45 kristaps 1022: la = *pos;
1.119 ! schwarze 1023: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1024:
1.56 kristaps 1025: if (ARGV_WORD == av) {
1.45 kristaps 1026: *pos = la;
1.1 kristaps 1027: break;
1028: }
1029:
1.56 kristaps 1030: if (ARGV_EOLN == av)
1.1 kristaps 1031: break;
1.56 kristaps 1032: if (ARGV_ARG == av)
1.1 kristaps 1033: continue;
1034:
1035: mdoc_argv_free(arg);
1036: return(0);
1037: }
1038:
1.119 ! schwarze 1039: if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 1040: return(0);
1041:
1.49 kristaps 1042: head = body = NULL;
1.115 schwarze 1043:
1044: /*
1045: * Exception: Heads of `It' macros in `-diag' lists are not
1046: * parsed, even though `It' macros in general are parsed.
1047: */
1048: nparsed = MDOC_It == tok &&
1.119 ! schwarze 1049: MDOC_Bl == mdoc->last->parent->tok &&
! 1050: LIST_diag == mdoc->last->parent->norm->Bl.type;
1.1 kristaps 1051:
1.45 kristaps 1052: /*
1053: * The `Nd' macro has all arguments in its body: it's a hybrid
1054: * of block partial-explicit and full-implicit. Stupid.
1055: */
1.19 kristaps 1056:
1.45 kristaps 1057: if (MDOC_Nd == tok) {
1.119 ! schwarze 1058: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.45 kristaps 1059: return(0);
1.119 ! schwarze 1060: head = mdoc->last;
! 1061: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.19 kristaps 1062: return(0);
1.119 ! schwarze 1063: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.19 kristaps 1064: return(0);
1.119 ! schwarze 1065: body = mdoc->last;
1.19 kristaps 1066: }
1067:
1.59 kristaps 1068: ac = ARGS_ERROR;
1069:
1.62 kristaps 1070: for ( ; ; ) {
1.45 kristaps 1071: la = *pos;
1.75 kristaps 1072: /* Initialise last-phrase-type with ARGS_PEND. */
1073: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.119 ! schwarze 1074: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.89 schwarze 1075:
1076: if (ARGS_PUNCT == ac)
1077: break;
1.1 kristaps 1078:
1.53 kristaps 1079: if (ARGS_ERROR == ac)
1.1 kristaps 1080: return(0);
1.75 kristaps 1081:
1082: if (ARGS_EOLN == ac) {
1083: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1084: break;
1085: /*
1086: * This is necessary: if the last token on a
1087: * line is a `Ta' or tab, then we'll get
1088: * ARGS_EOLN, so we must be smart enough to
1089: * reopen our scope if the last parse was a
1090: * phrase or partial phrase.
1091: */
1.119 ! schwarze 1092: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.75 kristaps 1093: return(0);
1.119 ! schwarze 1094: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.75 kristaps 1095: return(0);
1.119 ! schwarze 1096: body = mdoc->last;
1.1 kristaps 1097: break;
1.75 kristaps 1098: }
1.45 kristaps 1099:
1.73 kristaps 1100: /*
1101: * Emit leading punctuation (i.e., punctuation before
1102: * the MDOC_HEAD) for non-phrase types.
1103: */
1.45 kristaps 1104:
1.59 kristaps 1105: if (NULL == head &&
1.71 kristaps 1106: ARGS_PEND != ac &&
1.59 kristaps 1107: ARGS_PHRASE != ac &&
1.57 kristaps 1108: ARGS_PPHRASE != ac &&
1.53 kristaps 1109: ARGS_QWORD != ac &&
1.105 kristaps 1110: DELIM_OPEN == mdoc_isdelim(p)) {
1.119 ! schwarze 1111: if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
1.45 kristaps 1112: return(0);
1113: continue;
1114: }
1115:
1.74 kristaps 1116: /* Open a head if one hasn't been opened. */
1.45 kristaps 1117:
1.74 kristaps 1118: if (NULL == head) {
1.119 ! schwarze 1119: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.45 kristaps 1120: return(0);
1.119 ! schwarze 1121: head = mdoc->last;
1.45 kristaps 1122: }
1123:
1.72 kristaps 1124: if (ARGS_PHRASE == ac ||
1125: ARGS_PEND == ac ||
1126: ARGS_PPHRASE == ac) {
1.73 kristaps 1127: /*
1.74 kristaps 1128: * If we haven't opened a body yet, rewind the
1129: * head; if we have, rewind that instead.
1130: */
1131:
1132: mtt = body ? MDOC_BODY : MDOC_HEAD;
1.119 ! schwarze 1133: if ( ! rew_sub(mtt, mdoc, tok, line, ppos))
1.74 kristaps 1134: return(0);
1135:
1136: /* Then allocate our body context. */
1137:
1.119 ! schwarze 1138: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.74 kristaps 1139: return(0);
1.119 ! schwarze 1140: body = mdoc->last;
1.74 kristaps 1141:
1142: /*
1.73 kristaps 1143: * Process phrases: set whether we're in a
1144: * partial-phrase (this effects line handling)
1145: * then call down into the phrase parser.
1146: */
1.74 kristaps 1147:
1.65 kristaps 1148: if (ARGS_PPHRASE == ac)
1.119 ! schwarze 1149: mdoc->flags |= MDOC_PPHRASE;
1.71 kristaps 1150: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1.119 ! schwarze 1151: mdoc->flags |= MDOC_PPHRASE;
1.71 kristaps 1152:
1.119 ! schwarze 1153: if ( ! phrase(mdoc, line, la, buf))
1.1 kristaps 1154: return(0);
1.71 kristaps 1155:
1.119 ! schwarze 1156: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1157: continue;
1158: }
1159:
1.114 kristaps 1160: ntok = nparsed || ARGS_QWORD == ac ?
1161: MDOC_MAX : lookup(tok, p);
1.54 kristaps 1162:
1163: if (MDOC_MAX == ntok) {
1.119 ! schwarze 1164: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.1 kristaps 1165: return(0);
1.53 kristaps 1166: continue;
1.45 kristaps 1167: }
1.53 kristaps 1168:
1.119 ! schwarze 1169: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.45 kristaps 1170: return(0);
1.53 kristaps 1171: break;
1.45 kristaps 1172: }
1.1 kristaps 1173:
1.45 kristaps 1174: if (NULL == head) {
1.119 ! schwarze 1175: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1176: return(0);
1.119 ! schwarze 1177: head = mdoc->last;
1.1 kristaps 1178: }
1179:
1.119 ! schwarze 1180: if (nl && ! append_delims(mdoc, line, pos, buf))
1.1 kristaps 1181: return(0);
1.19 kristaps 1182:
1.49 kristaps 1183: /* If we've already opened our body, exit now. */
1.45 kristaps 1184:
1.49 kristaps 1185: if (NULL != body)
1.77 kristaps 1186: goto out;
1.19 kristaps 1187:
1.47 kristaps 1188: /*
1.49 kristaps 1189: * If there is an open (i.e., unvalidated) sub-block requiring
1190: * explicit close-out, postpone switching the current block from
1191: * head to body until the rew_sub() call closing out that
1192: * sub-block.
1.47 kristaps 1193: */
1.119 ! schwarze 1194: for (n = mdoc->last; n && n != head; n = n->parent) {
1.49 kristaps 1195: if (MDOC_BLOCK == n->type &&
1196: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1197: ! (MDOC_VALID & n->flags)) {
1.47 kristaps 1198: n->pending = head;
1199: return(1);
1200: }
1201: }
1202:
1.45 kristaps 1203: /* Close out scopes to remain in a consistent state. */
1204:
1.119 ! schwarze 1205: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1206: return(0);
1.119 ! schwarze 1207: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1208: return(0);
1209:
1.77 kristaps 1210: out:
1.119 ! schwarze 1211: if ( ! (MDOC_FREECOL & mdoc->flags))
1.77 kristaps 1212: return(1);
1213:
1.119 ! schwarze 1214: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.77 kristaps 1215: return(0);
1.119 ! schwarze 1216: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.77 kristaps 1217: return(0);
1218:
1.119 ! schwarze 1219: mdoc->flags &= ~MDOC_FREECOL;
1.1 kristaps 1220: return(1);
1221: }
1222:
1223:
1224: static int
1225: blk_part_imp(MACRO_PROT_ARGS)
1226: {
1.63 kristaps 1227: int la, nl;
1.53 kristaps 1228: enum mdoct ntok;
1.55 kristaps 1229: enum margserr ac;
1.1 kristaps 1230: char *p;
1.43 kristaps 1231: struct mdoc_node *blk; /* saved block context */
1232: struct mdoc_node *body; /* saved body context */
1233: struct mdoc_node *n;
1.1 kristaps 1234:
1.119 ! schwarze 1235: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1236:
1.43 kristaps 1237: /*
1238: * A macro that spans to the end of the line. This is generally
1239: * (but not necessarily) called as the first macro. The block
1240: * has a head as the immediate child, which is always empty,
1241: * followed by zero or more opening punctuation nodes, then the
1242: * body (which may be empty, depending on the macro), then zero
1243: * or more closing punctuation nodes.
1244: */
1.32 kristaps 1245:
1.119 ! schwarze 1246: if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, NULL))
1.32 kristaps 1247: return(0);
1.43 kristaps 1248:
1.119 ! schwarze 1249: blk = mdoc->last;
1.43 kristaps 1250:
1.119 ! schwarze 1251: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1252: return(0);
1.119 ! schwarze 1253: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1254: return(0);
1255:
1.43 kristaps 1256: /*
1257: * Open the body scope "on-demand", that is, after we've
1258: * processed all our the leading delimiters (open parenthesis,
1259: * etc.).
1260: */
1.1 kristaps 1261:
1.43 kristaps 1262: for (body = NULL; ; ) {
1.32 kristaps 1263: la = *pos;
1.119 ! schwarze 1264: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.43 kristaps 1265:
1.53 kristaps 1266: if (ARGS_ERROR == ac)
1.1 kristaps 1267: return(0);
1.53 kristaps 1268: if (ARGS_EOLN == ac)
1.43 kristaps 1269: break;
1.53 kristaps 1270: if (ARGS_PUNCT == ac)
1.1 kristaps 1271: break;
1272:
1.53 kristaps 1273: if (NULL == body && ARGS_QWORD != ac &&
1.105 kristaps 1274: DELIM_OPEN == mdoc_isdelim(p)) {
1.119 ! schwarze 1275: if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
1.1 kristaps 1276: return(0);
1277: continue;
1278: }
1279:
1.43 kristaps 1280: if (NULL == body) {
1.119 ! schwarze 1281: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.43 kristaps 1282: return(0);
1.119 ! schwarze 1283: body = mdoc->last;
1.43 kristaps 1284: }
1285:
1.54 kristaps 1286: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1287:
1288: if (MDOC_MAX == ntok) {
1.119 ! schwarze 1289: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.43 kristaps 1290: return(0);
1.53 kristaps 1291: continue;
1292: }
1.43 kristaps 1293:
1.119 ! schwarze 1294: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 1295: return(0);
1.53 kristaps 1296: break;
1.1 kristaps 1297: }
1298:
1.43 kristaps 1299: /* Clean-ups to leave in a consistent state. */
1300:
1.44 kristaps 1301: if (NULL == body) {
1.119 ! schwarze 1302: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.44 kristaps 1303: return(0);
1.119 ! schwarze 1304: body = mdoc->last;
1.64 kristaps 1305: }
1306:
1307: for (n = body->child; n && n->next; n = n->next)
1308: /* Do nothing. */ ;
1309:
1310: /*
1311: * End of sentence spacing: if the last node is a text node and
1312: * has a trailing period, then mark it as being end-of-sentence.
1313: */
1314:
1315: if (n && MDOC_TEXT == n->type && n->string)
1.93 schwarze 1316: if (mandoc_eos(n->string, strlen(n->string), 1))
1.64 kristaps 1317: n->flags |= MDOC_EOS;
1318:
1.109 kristaps 1319: /* Up-propagate the end-of-space flag. */
1.64 kristaps 1320:
1321: if (n && (MDOC_EOS & n->flags)) {
1322: body->flags |= MDOC_EOS;
1323: body->parent->flags |= MDOC_EOS;
1.44 kristaps 1324: }
1.43 kristaps 1325:
1.83 schwarze 1326: /*
1327: * If there is an open sub-block requiring explicit close-out,
1328: * postpone closing out the current block
1329: * until the rew_sub() call closing out the sub-block.
1330: */
1.119 ! schwarze 1331: for (n = mdoc->last; n && n != body && n != blk->parent;
! 1332: n = n->parent) {
1.83 schwarze 1333: if (MDOC_BLOCK == n->type &&
1334: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1335: ! (MDOC_VALID & n->flags)) {
1.119 ! schwarze 1336: make_pending(n, tok, mdoc, line, ppos);
! 1337: if ( ! mdoc_endbody_alloc(mdoc, line, ppos,
1.83 schwarze 1338: tok, body, ENDBODY_NOSPACE))
1339: return(0);
1340: return(1);
1341: }
1342: }
1343:
1.32 kristaps 1344: /*
1345: * If we can't rewind to our body, then our scope has already
1346: * been closed by another macro (like `Oc' closing `Op'). This
1347: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1348: * crufty use of `Op' breakage.
1.1 kristaps 1349: */
1.103 kristaps 1350: if (n != body)
1.119 ! schwarze 1351: mandoc_vmsg(MANDOCERR_SCOPENEST, mdoc->parse, line, ppos,
1.103 kristaps 1352: "%s broken", mdoc_macronames[tok]);
1.43 kristaps 1353:
1.119 ! schwarze 1354: if (n && ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.32 kristaps 1355: return(0);
1.1 kristaps 1356:
1.32 kristaps 1357: /* Standard appending of delimiters. */
1.1 kristaps 1358:
1.119 ! schwarze 1359: if (nl && ! append_delims(mdoc, line, pos, buf))
1.1 kristaps 1360: return(0);
1361:
1.32 kristaps 1362: /* Rewind scope, if applicable. */
1.1 kristaps 1363:
1.119 ! schwarze 1364: if (n && ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 1365: return(0);
1.117 schwarze 1366:
1367: /* Move trailing .Ns out of scope. */
1368:
1369: for (n = body->child; n && n->next; n = n->next)
1370: /* Do nothing. */ ;
1371: if (n && MDOC_Ns == n->tok)
1.119 ! schwarze 1372: mdoc_node_relink(mdoc, n);
1.1 kristaps 1373:
1374: return(1);
1375: }
1376:
1377:
1378: static int
1379: blk_part_exp(MACRO_PROT_ARGS)
1380: {
1.60 kristaps 1381: int la, nl;
1.55 kristaps 1382: enum margserr ac;
1.43 kristaps 1383: struct mdoc_node *head; /* keep track of head */
1384: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1385: char *p;
1.53 kristaps 1386: enum mdoct ntok;
1.1 kristaps 1387:
1.119 ! schwarze 1388: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1389:
1.43 kristaps 1390: /*
1391: * The opening of an explicit macro having zero or more leading
1392: * punctuation nodes; a head with optional single element (the
1393: * case of `Eo'); and a body that may be empty.
1394: */
1.32 kristaps 1395:
1.119 ! schwarze 1396: if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, NULL))
1.1 kristaps 1397: return(0);
1.32 kristaps 1398:
1.43 kristaps 1399: for (head = body = NULL; ; ) {
1.32 kristaps 1400: la = *pos;
1.119 ! schwarze 1401: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 1402:
1.53 kristaps 1403: if (ARGS_ERROR == ac)
1.1 kristaps 1404: return(0);
1.53 kristaps 1405: if (ARGS_PUNCT == ac)
1.1 kristaps 1406: break;
1.53 kristaps 1407: if (ARGS_EOLN == ac)
1.1 kristaps 1408: break;
1.43 kristaps 1409:
1410: /* Flush out leading punctuation. */
1411:
1.53 kristaps 1412: if (NULL == head && ARGS_QWORD != ac &&
1.105 kristaps 1413: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1414: assert(NULL == body);
1.119 ! schwarze 1415: if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
1.43 kristaps 1416: return(0);
1417: continue;
1418: }
1419:
1420: if (NULL == head) {
1421: assert(NULL == body);
1.119 ! schwarze 1422: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1423: return(0);
1.119 ! schwarze 1424: head = mdoc->last;
1.1 kristaps 1425: }
1426:
1.43 kristaps 1427: /*
1428: * `Eo' gobbles any data into the head, but most other
1429: * macros just immediately close out and begin the body.
1430: */
1431:
1432: if (NULL == body) {
1433: assert(head);
1434: /* No check whether it's a macro! */
1435: if (MDOC_Eo == tok)
1.119 ! schwarze 1436: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.43 kristaps 1437: return(0);
1438:
1.119 ! schwarze 1439: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1440: return(0);
1.119 ! schwarze 1441: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1442: return(0);
1.119 ! schwarze 1443: body = mdoc->last;
1.43 kristaps 1444:
1445: if (MDOC_Eo == tok)
1446: continue;
1.1 kristaps 1447: }
1.43 kristaps 1448:
1449: assert(NULL != head && NULL != body);
1450:
1.54 kristaps 1451: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1452:
1453: if (MDOC_MAX == ntok) {
1.119 ! schwarze 1454: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.43 kristaps 1455: return(0);
1.53 kristaps 1456: continue;
1.43 kristaps 1457: }
1458:
1.119 ! schwarze 1459: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 1460: return(0);
1.53 kristaps 1461: break;
1.1 kristaps 1462: }
1463:
1.43 kristaps 1464: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1465:
1.112 schwarze 1466: if (NULL == head)
1.119 ! schwarze 1467: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.43 kristaps 1468: return(0);
1469:
1470: if (NULL == body) {
1.119 ! schwarze 1471: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1472: return(0);
1.119 ! schwarze 1473: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1474: return(0);
1475: }
1476:
1.32 kristaps 1477: /* Standard appending of delimiters. */
1478:
1.60 kristaps 1479: if ( ! nl)
1.1 kristaps 1480: return(1);
1.119 ! schwarze 1481: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 1482: }
1483:
1484:
1.61 kristaps 1485: /* ARGSUSED */
1.1 kristaps 1486: static int
1487: in_line_argn(MACRO_PROT_ARGS)
1488: {
1.60 kristaps 1489: int la, flushed, j, maxargs, nl;
1.55 kristaps 1490: enum margserr ac;
1.56 kristaps 1491: enum margverr av;
1.53 kristaps 1492: struct mdoc_arg *arg;
1493: char *p;
1494: enum mdoct ntok;
1.1 kristaps 1495:
1.119 ! schwarze 1496: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1497:
1.46 kristaps 1498: /*
1499: * A line macro that has a fixed number of arguments (maxargs).
1500: * Only open the scope once the first non-leading-punctuation is
1501: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1502: * keep it open until the maximum number of arguments are
1503: * exhausted.
1504: */
1.1 kristaps 1505:
1506: switch (tok) {
1507: case (MDOC_Ap):
1508: /* FALLTHROUGH */
1509: case (MDOC_No):
1510: /* FALLTHROUGH */
1511: case (MDOC_Ns):
1512: /* FALLTHROUGH */
1513: case (MDOC_Ux):
1514: maxargs = 0;
1515: break;
1.101 kristaps 1516: case (MDOC_Bx):
1517: /* FALLTHROUGH */
1.42 kristaps 1518: case (MDOC_Xr):
1519: maxargs = 2;
1520: break;
1.1 kristaps 1521: default:
1522: maxargs = 1;
1523: break;
1524: }
1525:
1.46 kristaps 1526: for (arg = NULL; ; ) {
1.32 kristaps 1527: la = *pos;
1.119 ! schwarze 1528: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1529:
1.56 kristaps 1530: if (ARGV_WORD == av) {
1.32 kristaps 1531: *pos = la;
1.1 kristaps 1532: break;
1533: }
1534:
1.56 kristaps 1535: if (ARGV_EOLN == av)
1.1 kristaps 1536: break;
1.56 kristaps 1537: if (ARGV_ARG == av)
1.1 kristaps 1538: continue;
1539:
1540: mdoc_argv_free(arg);
1541: return(0);
1542: }
1543:
1.46 kristaps 1544: for (flushed = j = 0; ; ) {
1.32 kristaps 1545: la = *pos;
1.119 ! schwarze 1546: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 1547:
1.53 kristaps 1548: if (ARGS_ERROR == ac)
1.1 kristaps 1549: return(0);
1.53 kristaps 1550: if (ARGS_PUNCT == ac)
1.1 kristaps 1551: break;
1.53 kristaps 1552: if (ARGS_EOLN == ac)
1.1 kristaps 1553: break;
1554:
1.46 kristaps 1555: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.105 kristaps 1556: ARGS_QWORD != ac && 0 == j &&
1557: DELIM_OPEN == mdoc_isdelim(p)) {
1.119 ! schwarze 1558: if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
1.46 kristaps 1559: return(0);
1560: continue;
1561: } else if (0 == j)
1.119 ! schwarze 1562: if ( ! mdoc_elem_alloc(mdoc, line, la, tok, arg))
1.46 kristaps 1563: return(0);
1564:
1565: if (j == maxargs && ! flushed) {
1.119 ! schwarze 1566: if ( ! rew_elem(mdoc, tok))
1.46 kristaps 1567: return(0);
1568: flushed = 1;
1569: }
1570:
1.54 kristaps 1571: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1572:
1573: if (MDOC_MAX != ntok) {
1.119 ! schwarze 1574: if ( ! flushed && ! rew_elem(mdoc, tok))
1.1 kristaps 1575: return(0);
1576: flushed = 1;
1.119 ! schwarze 1577: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 1578: return(0);
1.46 kristaps 1579: j++;
1.1 kristaps 1580: break;
1581: }
1582:
1583: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1584: ARGS_QWORD != ac &&
1.67 schwarze 1585: ! flushed &&
1.105 kristaps 1586: DELIM_NONE != mdoc_isdelim(p)) {
1.119 ! schwarze 1587: if ( ! rew_elem(mdoc, tok))
1.1 kristaps 1588: return(0);
1589: flushed = 1;
1590: }
1.42 kristaps 1591:
1.119 ! schwarze 1592: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.1 kristaps 1593: return(0);
1.46 kristaps 1594: j++;
1.1 kristaps 1595: }
1596:
1.119 ! schwarze 1597: if (0 == j && ! mdoc_elem_alloc(mdoc, line, la, tok, arg))
1.46 kristaps 1598: return(0);
1599:
1600: /* Close out in a consistent state. */
1.32 kristaps 1601:
1.119 ! schwarze 1602: if ( ! flushed && ! rew_elem(mdoc, tok))
1.1 kristaps 1603: return(0);
1.60 kristaps 1604: if ( ! nl)
1.1 kristaps 1605: return(1);
1.119 ! schwarze 1606: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 1607: }
1608:
1609:
1610: static int
1611: in_line_eoln(MACRO_PROT_ARGS)
1612: {
1.56 kristaps 1613: int la;
1.55 kristaps 1614: enum margserr ac;
1.56 kristaps 1615: enum margverr av;
1.53 kristaps 1616: struct mdoc_arg *arg;
1617: char *p;
1618: enum mdoct ntok;
1.1 kristaps 1619:
1620: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1621:
1.90 schwarze 1622: if (tok == MDOC_Pp)
1.119 ! schwarze 1623: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.90 schwarze 1624:
1.32 kristaps 1625: /* Parse macro arguments. */
1.1 kristaps 1626:
1.32 kristaps 1627: for (arg = NULL; ; ) {
1.1 kristaps 1628: la = *pos;
1.119 ! schwarze 1629: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1630:
1.56 kristaps 1631: if (ARGV_WORD == av) {
1.1 kristaps 1632: *pos = la;
1633: break;
1634: }
1.56 kristaps 1635: if (ARGV_EOLN == av)
1.1 kristaps 1636: break;
1.56 kristaps 1637: if (ARGV_ARG == av)
1.1 kristaps 1638: continue;
1639:
1640: mdoc_argv_free(arg);
1641: return(0);
1642: }
1643:
1.32 kristaps 1644: /* Open element scope. */
1645:
1.119 ! schwarze 1646: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 1647: return(0);
1648:
1.32 kristaps 1649: /* Parse argument terms. */
1.1 kristaps 1650:
1651: for (;;) {
1652: la = *pos;
1.119 ! schwarze 1653: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 1654:
1.53 kristaps 1655: if (ARGS_ERROR == ac)
1.1 kristaps 1656: return(0);
1.53 kristaps 1657: if (ARGS_EOLN == ac)
1.1 kristaps 1658: break;
1659:
1.53 kristaps 1660: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1661:
1.53 kristaps 1662: if (MDOC_MAX == ntok) {
1.119 ! schwarze 1663: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.1 kristaps 1664: return(0);
1.53 kristaps 1665: continue;
1666: }
1.1 kristaps 1667:
1.119 ! schwarze 1668: if ( ! rew_elem(mdoc, tok))
1.1 kristaps 1669: return(0);
1.119 ! schwarze 1670: return(mdoc_macro(mdoc, ntok, line, la, pos, buf));
1.1 kristaps 1671: }
1672:
1.32 kristaps 1673: /* Close out (no delimiters). */
1674:
1.119 ! schwarze 1675: return(rew_elem(mdoc, tok));
1.1 kristaps 1676: }
1677:
1678:
1679: /* ARGSUSED */
1680: static int
1.41 kristaps 1681: ctx_synopsis(MACRO_PROT_ARGS)
1682: {
1.60 kristaps 1683: int nl;
1684:
1.119 ! schwarze 1685: nl = MDOC_NEWLINE & mdoc->flags;
1.41 kristaps 1686:
1687: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.119 ! schwarze 1688: if ( ! (MDOC_SYNOPSIS & mdoc->flags))
! 1689: return(in_line(mdoc, tok, line, ppos, pos, buf));
1.41 kristaps 1690:
1691: /* If we're a nested call, same place. */
1.60 kristaps 1692: if ( ! nl)
1.119 ! schwarze 1693: return(in_line(mdoc, tok, line, ppos, pos, buf));
1.41 kristaps 1694:
1695: /*
1696: * XXX: this will open a block scope; however, if later we end
1697: * up formatting the block scope, then child nodes will inherit
1698: * the formatting. Be careful.
1699: */
1.88 schwarze 1700: if (MDOC_Nm == tok)
1.119 ! schwarze 1701: return(blk_full(mdoc, tok, line, ppos, pos, buf));
1.88 schwarze 1702: assert(MDOC_Vt == tok);
1.119 ! schwarze 1703: return(blk_part_imp(mdoc, tok, line, ppos, pos, buf));
1.41 kristaps 1704: }
1705:
1706:
1707: /* ARGSUSED */
1708: static int
1.1 kristaps 1709: obsolete(MACRO_PROT_ARGS)
1710: {
1711:
1.119 ! schwarze 1712: mdoc_pmsg(mdoc, line, ppos, MANDOCERR_MACROOBS);
1.103 kristaps 1713: return(1);
1.1 kristaps 1714: }
1715:
1716:
1.24 kristaps 1717: /*
1718: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1719: * They're unusual because they're basically free-form text until a
1720: * macro is encountered.
1721: */
1.1 kristaps 1722: static int
1.119 ! schwarze 1723: phrase(struct mdoc *mdoc, int line, int ppos, char *buf)
1.1 kristaps 1724: {
1.53 kristaps 1725: int la, pos;
1.75 kristaps 1726: enum margserr ac;
1.53 kristaps 1727: enum mdoct ntok;
1728: char *p;
1.1 kristaps 1729:
1.24 kristaps 1730: for (pos = ppos; ; ) {
1731: la = pos;
1.1 kristaps 1732:
1.119 ! schwarze 1733: ac = mdoc_zargs(mdoc, line, &pos, buf, &p);
1.1 kristaps 1734:
1.75 kristaps 1735: if (ARGS_ERROR == ac)
1.24 kristaps 1736: return(0);
1.75 kristaps 1737: if (ARGS_EOLN == ac)
1.24 kristaps 1738: break;
1.1 kristaps 1739:
1.75 kristaps 1740: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1741:
1.53 kristaps 1742: if (MDOC_MAX == ntok) {
1.119 ! schwarze 1743: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.1 kristaps 1744: return(0);
1.53 kristaps 1745: continue;
1746: }
1.1 kristaps 1747:
1.119 ! schwarze 1748: if ( ! mdoc_macro(mdoc, ntok, line, la, &pos, buf))
1.1 kristaps 1749: return(0);
1.119 ! schwarze 1750: return(append_delims(mdoc, line, &pos, buf));
1.1 kristaps 1751: }
1752:
1753: return(1);
1754: }
1.24 kristaps 1755:
1756:
1.79 kristaps 1757: /* ARGSUSED */
1.75 kristaps 1758: static int
1759: phrase_ta(MACRO_PROT_ARGS)
1760: {
1761: int la;
1762: enum mdoct ntok;
1763: enum margserr ac;
1764: char *p;
1765:
1766: /*
1767: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1768: * it should simply error out with ARGSLOST.
1769: */
1770:
1.119 ! schwarze 1771: if ( ! rew_sub(MDOC_BODY, mdoc, MDOC_It, line, ppos))
1.75 kristaps 1772: return(0);
1.119 ! schwarze 1773: if ( ! mdoc_body_alloc(mdoc, line, ppos, MDOC_It))
1.75 kristaps 1774: return(0);
1775:
1776: for (;;) {
1777: la = *pos;
1.119 ! schwarze 1778: ac = mdoc_zargs(mdoc, line, pos, buf, &p);
1.75 kristaps 1779:
1780: if (ARGS_ERROR == ac)
1781: return(0);
1782: if (ARGS_EOLN == ac)
1783: break;
1784:
1785: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1786:
1787: if (MDOC_MAX == ntok) {
1.119 ! schwarze 1788: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.75 kristaps 1789: return(0);
1790: continue;
1791: }
1792:
1.119 ! schwarze 1793: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.75 kristaps 1794: return(0);
1.119 ! schwarze 1795: return(append_delims(mdoc, line, pos, buf));
1.75 kristaps 1796: }
1797:
1798: return(1);
1799: }
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