Annotation of mandoc/mdoc_macro.c, Revision 1.107
1.107 ! kristaps 1: /* $Id: mdoc_macro.c,v 1.106 2011/03/22 14:33:05 kristaps Exp $ */
1.1 kristaps 2: /*
1.92 schwarze 3: * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
4: * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.8 kristaps 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.40 kristaps 18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.1 kristaps 22: #include <assert.h>
23: #include <ctype.h>
24: #include <stdlib.h>
25: #include <stdio.h>
26: #include <string.h>
1.38 kristaps 27: #include <time.h>
1.1 kristaps 28:
1.106 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 */
77: { blk_full, 0 }, /* Sh */
78: { blk_full, 0 }, /* 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: {
1.36 kristaps 231: /* FIXME: make -diag lists be un-PARSED. */
1.28 kristaps 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
267: * m->last node in the post-validation phase and reset
268: * it to m->last->parent, causing a step in the closing
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,
464: struct mdoc *m, int line, int ppos)
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;
1.104 kristaps 519: mandoc_vmsg(MANDOCERR_SCOPENEST, m->parse, line, ppos,
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
1.32 kristaps 534: rew_sub(enum mdoc_type t, struct mdoc *m,
1.47 kristaps 535: enum mdoct tok, int line, int ppos)
1.1 kristaps 536: {
537: struct mdoc_node *n;
538:
1.84 schwarze 539: n = m->last;
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):
1.104 kristaps 547: mandoc_vmsg(MANDOCERR_SCOPEBROKEN, m->parse,
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):
1.98 kristaps 556: if (make_pending(n, tok, m, line, ppos) ||
557: MDOC_BLOCK != t)
558: return(1);
559: /* FALLTHROUGH */
1.84 schwarze 560: case (REWIND_ERROR):
1.98 kristaps 561: mdoc_pmsg(m, line, ppos, MANDOCERR_NOSCOPE);
562: return(1);
1.32 kristaps 563: }
1.84 schwarze 564: break;
1.1 kristaps 565: }
566:
567: assert(n);
1.47 kristaps 568: if ( ! rew_last(m, n))
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)) {
1.47 kristaps 576: if ( ! rew_last(m, n))
577: return(0);
1.83 schwarze 578: if (MDOC_HEAD == n->type &&
579: ! mdoc_body_alloc(m, 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
591: dword(struct mdoc *m, int line,
592: int col, const char *p, enum mdelim d)
593: {
594:
595: if (DELIM_MAX == d)
596: d = mdoc_isdelim(p);
597:
598: if ( ! mdoc_word_alloc(m, line, col, p))
599: return(0);
600:
601: if (DELIM_OPEN == d)
602: m->last->flags |= MDOC_DELIMO;
603: else if (DELIM_CLOSE == d)
604: m->last->flags |= MDOC_DELIMC;
605:
606: return(1);
607: }
1.1 kristaps 608:
609: static int
1.66 kristaps 610: append_delims(struct mdoc *m, int line, int *pos, char *buf)
1.1 kristaps 611: {
1.66 kristaps 612: int la;
1.55 kristaps 613: enum margserr ac;
1.1 kristaps 614: char *p;
615:
1.66 kristaps 616: if ('\0' == buf[*pos])
1.1 kristaps 617: return(1);
618:
619: for (;;) {
1.66 kristaps 620: la = *pos;
1.107 ! kristaps 621: ac = mdoc_zargs(m, line, pos, buf, &p);
1.1 kristaps 622:
1.53 kristaps 623: if (ARGS_ERROR == ac)
1.1 kristaps 624: return(0);
1.53 kristaps 625: else if (ARGS_EOLN == ac)
1.1 kristaps 626: break;
1.66 kristaps 627:
1.105 kristaps 628: dword(m, line, la, p, DELIM_MAX);
1.66 kristaps 629:
630: /*
631: * If we encounter end-of-sentence symbols, then trigger
632: * the double-space.
633: *
634: * XXX: it's easy to allow this to propogate outward to
635: * the last symbol, such that `. )' will cause the
636: * correct double-spacing. However, (1) groff isn't
637: * smart enough to do this and (2) it would require
638: * knowing which symbols break this behaviour, for
639: * example, `. ;' shouldn't propogate the double-space.
640: */
1.93 schwarze 641: if (mandoc_eos(p, strlen(p), 0))
1.66 kristaps 642: m->last->flags |= MDOC_EOS;
1.1 kristaps 643: }
644:
645: return(1);
646: }
647:
648:
649: /*
650: * Close out block partial/full explicit.
651: */
652: static int
653: blk_exp_close(MACRO_PROT_ARGS)
654: {
1.83 schwarze 655: struct mdoc_node *body; /* Our own body. */
656: struct mdoc_node *later; /* A sub-block starting later. */
657: struct mdoc_node *n; /* For searching backwards. */
658:
1.60 kristaps 659: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 660: enum margserr ac;
1.83 schwarze 661: enum mdoct atok, ntok;
1.1 kristaps 662: char *p;
663:
1.60 kristaps 664: nl = MDOC_NEWLINE & m->flags;
665:
1.1 kristaps 666: switch (tok) {
667: case (MDOC_Ec):
668: maxargs = 1;
669: break;
670: default:
671: maxargs = 0;
672: break;
673: }
674:
1.83 schwarze 675: /*
676: * Search backwards for beginnings of blocks,
677: * both of our own and of pending sub-blocks.
678: */
679: atok = rew_alt(tok);
680: body = later = NULL;
681: for (n = m->last; n; n = n->parent) {
682: if (MDOC_VALID & n->flags)
683: continue;
684:
685: /* Remember the start of our own body. */
686: if (MDOC_BODY == n->type && atok == n->tok) {
1.87 kristaps 687: if (ENDBODY_NOT == n->end)
1.83 schwarze 688: body = n;
689: continue;
690: }
691:
1.88 schwarze 692: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.83 schwarze 693: continue;
694: if (atok == n->tok) {
695: assert(body);
696:
697: /*
698: * Found the start of our own block.
699: * When there is no pending sub block,
700: * just proceed to closing out.
701: */
702: if (NULL == later)
703: break;
704:
705: /*
706: * When there is a pending sub block,
707: * postpone closing out the current block
708: * until the rew_sub() closing out the sub-block.
709: */
1.98 kristaps 710: make_pending(later, tok, m, line, ppos);
1.83 schwarze 711:
712: /*
713: * Mark the place where the formatting - but not
714: * the scope - of the current block ends.
715: */
716: if ( ! mdoc_endbody_alloc(m, line, ppos,
717: atok, body, ENDBODY_SPACE))
718: return(0);
719: break;
720: }
721:
722: /*
723: * When finding an open sub block, remember the last
724: * open explicit block, or, in case there are only
725: * implicit ones, the first open implicit block.
726: */
727: if (later &&
728: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
729: continue;
1.97 kristaps 730: if (MDOC_CALLABLE & mdoc_macros[n->tok].flags)
1.83 schwarze 731: later = n;
732: }
733:
1.1 kristaps 734: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.68 kristaps 735: /* FIXME: do this in validate */
1.22 kristaps 736: if (buf[*pos])
1.103 kristaps 737: mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST);
1.22 kristaps 738:
1.32 kristaps 739: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.22 kristaps 740: return(0);
1.32 kristaps 741: return(rew_sub(MDOC_BLOCK, m, tok, line, ppos));
1.1 kristaps 742: }
743:
1.32 kristaps 744: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 745: return(0);
746:
1.83 schwarze 747: if (NULL == later && maxargs > 0)
1.32 kristaps 748: if ( ! mdoc_tail_alloc(m, line, ppos, rew_alt(tok)))
1.1 kristaps 749: return(0);
750:
1.27 kristaps 751: for (flushed = j = 0; ; j++) {
1.1 kristaps 752: lastarg = *pos;
753:
754: if (j == maxargs && ! flushed) {
1.32 kristaps 755: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 756: return(0);
757: flushed = 1;
758: }
759:
1.53 kristaps 760: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 761:
1.53 kristaps 762: if (ARGS_ERROR == ac)
1.1 kristaps 763: return(0);
1.53 kristaps 764: if (ARGS_PUNCT == ac)
1.1 kristaps 765: break;
1.53 kristaps 766: if (ARGS_EOLN == ac)
1.1 kristaps 767: break;
768:
1.54 kristaps 769: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
770:
771: if (MDOC_MAX == ntok) {
1.105 kristaps 772: if ( ! dword(m, line, lastarg, p, DELIM_MAX))
1.1 kristaps 773: return(0);
1.54 kristaps 774: continue;
775: }
1.1 kristaps 776:
1.54 kristaps 777: if ( ! flushed) {
778: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
779: return(0);
780: flushed = 1;
781: }
1.82 kristaps 782: if ( ! mdoc_macro(m, ntok, line, lastarg, pos, buf))
1.1 kristaps 783: return(0);
1.54 kristaps 784: break;
1.1 kristaps 785: }
786:
1.32 kristaps 787: if ( ! flushed && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 788: return(0);
789:
1.60 kristaps 790: if ( ! nl)
1.1 kristaps 791: return(1);
1.32 kristaps 792: return(append_delims(m, line, pos, buf));
1.1 kristaps 793: }
794:
795:
796: static int
797: in_line(MACRO_PROT_ARGS)
798: {
1.70 kristaps 799: int la, scope, cnt, nc, nl;
1.56 kristaps 800: enum margverr av;
1.53 kristaps 801: enum mdoct ntok;
1.55 kristaps 802: enum margserr ac;
1.67 schwarze 803: enum mdelim d;
1.53 kristaps 804: struct mdoc_arg *arg;
805: char *p;
1.1 kristaps 806:
1.60 kristaps 807: nl = MDOC_NEWLINE & m->flags;
808:
1.4 kristaps 809: /*
810: * Whether we allow ignored elements (those without content,
811: * usually because of reserved words) to squeak by.
812: */
1.45 kristaps 813:
1.4 kristaps 814: switch (tok) {
1.26 kristaps 815: case (MDOC_An):
816: /* FALLTHROUGH */
817: case (MDOC_Ar):
1.4 kristaps 818: /* FALLTHROUGH */
819: case (MDOC_Fl):
820: /* FALLTHROUGH */
1.96 kristaps 821: case (MDOC_Mt):
1.12 kristaps 822: /* FALLTHROUGH */
1.26 kristaps 823: case (MDOC_Nm):
824: /* FALLTHROUGH */
1.25 kristaps 825: case (MDOC_Pa):
1.4 kristaps 826: nc = 1;
827: break;
828: default:
829: nc = 0;
830: break;
831: }
832:
1.27 kristaps 833: for (arg = NULL;; ) {
1.1 kristaps 834: la = *pos;
1.56 kristaps 835: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 836:
1.56 kristaps 837: if (ARGV_WORD == av) {
1.1 kristaps 838: *pos = la;
839: break;
840: }
1.56 kristaps 841: if (ARGV_EOLN == av)
1.1 kristaps 842: break;
1.56 kristaps 843: if (ARGV_ARG == av)
1.1 kristaps 844: continue;
845:
846: mdoc_argv_free(arg);
847: return(0);
848: }
849:
1.70 kristaps 850: for (cnt = scope = 0;; ) {
1.1 kristaps 851: la = *pos;
1.53 kristaps 852: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 853:
1.53 kristaps 854: if (ARGS_ERROR == ac)
1.1 kristaps 855: return(0);
1.53 kristaps 856: if (ARGS_EOLN == ac)
1.1 kristaps 857: break;
1.53 kristaps 858: if (ARGS_PUNCT == ac)
1.1 kristaps 859: break;
860:
1.53 kristaps 861: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 862:
1.4 kristaps 863: /*
864: * In this case, we've located a submacro and must
865: * execute it. Close out scope, if open. If no
866: * elements have been generated, either create one (nc)
867: * or raise a warning.
868: */
1.1 kristaps 869:
1.53 kristaps 870: if (MDOC_MAX != ntok) {
1.70 kristaps 871: if (scope && ! rew_elem(m, tok))
1.1 kristaps 872: return(0);
1.4 kristaps 873: if (nc && 0 == cnt) {
1.32 kristaps 874: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 875: return(0);
1.32 kristaps 876: if ( ! rew_last(m, m->last))
1.12 kristaps 877: return(0);
1.7 kristaps 878: } else if ( ! nc && 0 == cnt) {
879: mdoc_argv_free(arg);
1.103 kristaps 880: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
1.7 kristaps 881: }
1.103 kristaps 882:
1.82 kristaps 883: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 884: return(0);
1.60 kristaps 885: if ( ! nl)
1.1 kristaps 886: return(1);
1.32 kristaps 887: return(append_delims(m, line, pos, buf));
1.29 kristaps 888: }
1.1 kristaps 889:
1.4 kristaps 890: /*
891: * Non-quote-enclosed punctuation. Set up our scope, if
892: * a word; rewind the scope, if a delimiter; then append
893: * the word.
894: */
1.1 kristaps 895:
1.105 kristaps 896: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 897:
1.70 kristaps 898: if (DELIM_NONE != d) {
899: /*
900: * If we encounter closing punctuation, no word
901: * has been omitted, no scope is open, and we're
902: * allowed to have an empty element, then start
903: * a new scope. `Ar', `Fl', and `Li', only do
904: * this once per invocation. There may be more
905: * of these (all of them?).
906: */
907: if (0 == cnt && (nc || MDOC_Li == tok) &&
908: DELIM_CLOSE == d && ! scope) {
909: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
910: return(0);
911: if (MDOC_Ar == tok || MDOC_Li == tok ||
912: MDOC_Fl == tok)
913: cnt++;
914: scope = 1;
915: }
916: /*
917: * Close out our scope, if one is open, before
918: * any punctuation.
919: */
920: if (scope && ! rew_elem(m, tok))
1.1 kristaps 921: return(0);
1.70 kristaps 922: scope = 0;
923: } else if ( ! scope) {
1.32 kristaps 924: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 925: return(0);
1.70 kristaps 926: scope = 1;
1.1 kristaps 927: }
928:
1.67 schwarze 929: if (DELIM_NONE == d)
1.3 kristaps 930: cnt++;
1.105 kristaps 931:
932: if ( ! dword(m, line, la, p, d))
1.1 kristaps 933: return(0);
1.39 kristaps 934:
935: /*
936: * `Fl' macros have their scope re-opened with each new
937: * word so that the `-' can be added to each one without
938: * having to parse out spaces.
939: */
1.70 kristaps 940: if (scope && MDOC_Fl == tok) {
1.39 kristaps 941: if ( ! rew_elem(m, tok))
942: return(0);
1.70 kristaps 943: scope = 0;
1.39 kristaps 944: }
1.1 kristaps 945: }
946:
1.70 kristaps 947: if (scope && ! rew_elem(m, tok))
1.1 kristaps 948: return(0);
1.4 kristaps 949:
950: /*
951: * If no elements have been collected and we're allowed to have
952: * empties (nc), open a scope and close it out. Otherwise,
953: * raise a warning.
954: */
1.45 kristaps 955:
1.4 kristaps 956: if (nc && 0 == cnt) {
1.32 kristaps 957: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.3 kristaps 958: return(0);
1.32 kristaps 959: if ( ! rew_last(m, m->last))
1.12 kristaps 960: return(0);
1.7 kristaps 961: } else if ( ! nc && 0 == cnt) {
962: mdoc_argv_free(arg);
1.103 kristaps 963: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY);
1.7 kristaps 964: }
1.4 kristaps 965:
1.60 kristaps 966: if ( ! nl)
1.1 kristaps 967: return(1);
1.32 kristaps 968: return(append_delims(m, line, pos, buf));
1.1 kristaps 969: }
970:
971:
972: static int
973: blk_full(MACRO_PROT_ARGS)
974: {
1.63 kristaps 975: int la, nl;
1.1 kristaps 976: struct mdoc_arg *arg;
1.45 kristaps 977: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 978: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 979: struct mdoc_node *n;
1.74 kristaps 980: enum mdoc_type mtt;
1.53 kristaps 981: enum mdoct ntok;
1.59 kristaps 982: enum margserr ac, lac;
1.56 kristaps 983: enum margverr av;
1.1 kristaps 984: char *p;
985:
1.63 kristaps 986: nl = MDOC_NEWLINE & m->flags;
987:
1.45 kristaps 988: /* Close out prior implicit scope. */
1.19 kristaps 989:
1.1 kristaps 990: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.32 kristaps 991: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.1 kristaps 992: return(0);
1.32 kristaps 993: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 994: return(0);
995: }
996:
1.45 kristaps 997: /*
998: * This routine accomodates implicitly- and explicitly-scoped
999: * macro openings. Implicit ones first close out prior scope
1000: * (seen above). Delay opening the head until necessary to
1001: * allow leading punctuation to print. Special consideration
1002: * for `It -column', which has phrase-part syntax instead of
1003: * regular child nodes.
1004: */
1005:
1.1 kristaps 1006: for (arg = NULL;; ) {
1.45 kristaps 1007: la = *pos;
1.56 kristaps 1008: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1009:
1.56 kristaps 1010: if (ARGV_WORD == av) {
1.45 kristaps 1011: *pos = la;
1.1 kristaps 1012: break;
1013: }
1014:
1.56 kristaps 1015: if (ARGV_EOLN == av)
1.1 kristaps 1016: break;
1.56 kristaps 1017: if (ARGV_ARG == av)
1.1 kristaps 1018: continue;
1019:
1020: mdoc_argv_free(arg);
1021: return(0);
1022: }
1023:
1.32 kristaps 1024: if ( ! mdoc_block_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1025: return(0);
1026:
1.49 kristaps 1027: head = body = NULL;
1.1 kristaps 1028:
1.45 kristaps 1029: /*
1030: * The `Nd' macro has all arguments in its body: it's a hybrid
1031: * of block partial-explicit and full-implicit. Stupid.
1032: */
1.19 kristaps 1033:
1.45 kristaps 1034: if (MDOC_Nd == tok) {
1035: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1036: return(0);
1037: head = m->last;
1.32 kristaps 1038: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.19 kristaps 1039: return(0);
1.32 kristaps 1040: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.19 kristaps 1041: return(0);
1.49 kristaps 1042: body = m->last;
1.19 kristaps 1043: }
1044:
1.59 kristaps 1045: ac = ARGS_ERROR;
1046:
1.62 kristaps 1047: for ( ; ; ) {
1.45 kristaps 1048: la = *pos;
1.75 kristaps 1049: /* Initialise last-phrase-type with ARGS_PEND. */
1050: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.53 kristaps 1051: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.89 schwarze 1052:
1053: if (ARGS_PUNCT == ac)
1054: break;
1.1 kristaps 1055:
1.53 kristaps 1056: if (ARGS_ERROR == ac)
1.1 kristaps 1057: return(0);
1.75 kristaps 1058:
1059: if (ARGS_EOLN == ac) {
1060: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1061: break;
1062: /*
1063: * This is necessary: if the last token on a
1064: * line is a `Ta' or tab, then we'll get
1065: * ARGS_EOLN, so we must be smart enough to
1066: * reopen our scope if the last parse was a
1067: * phrase or partial phrase.
1068: */
1069: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1070: return(0);
1071: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1072: return(0);
1073: body = m->last;
1.1 kristaps 1074: break;
1.75 kristaps 1075: }
1.45 kristaps 1076:
1.73 kristaps 1077: /*
1078: * Emit leading punctuation (i.e., punctuation before
1079: * the MDOC_HEAD) for non-phrase types.
1080: */
1.45 kristaps 1081:
1.59 kristaps 1082: if (NULL == head &&
1.71 kristaps 1083: ARGS_PEND != ac &&
1.59 kristaps 1084: ARGS_PHRASE != ac &&
1.57 kristaps 1085: ARGS_PPHRASE != ac &&
1.53 kristaps 1086: ARGS_QWORD != ac &&
1.105 kristaps 1087: DELIM_OPEN == mdoc_isdelim(p)) {
1088: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.45 kristaps 1089: return(0);
1090: continue;
1091: }
1092:
1.74 kristaps 1093: /* Open a head if one hasn't been opened. */
1.45 kristaps 1094:
1.74 kristaps 1095: if (NULL == head) {
1.45 kristaps 1096: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1097: return(0);
1098: head = m->last;
1099: }
1100:
1.72 kristaps 1101: if (ARGS_PHRASE == ac ||
1102: ARGS_PEND == ac ||
1103: ARGS_PPHRASE == ac) {
1.73 kristaps 1104: /*
1.74 kristaps 1105: * If we haven't opened a body yet, rewind the
1106: * head; if we have, rewind that instead.
1107: */
1108:
1109: mtt = body ? MDOC_BODY : MDOC_HEAD;
1110: if ( ! rew_sub(mtt, m, tok, line, ppos))
1111: return(0);
1112:
1113: /* Then allocate our body context. */
1114:
1115: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1116: return(0);
1117: body = m->last;
1118:
1119: /*
1.73 kristaps 1120: * Process phrases: set whether we're in a
1121: * partial-phrase (this effects line handling)
1122: * then call down into the phrase parser.
1123: */
1.74 kristaps 1124:
1.65 kristaps 1125: if (ARGS_PPHRASE == ac)
1126: m->flags |= MDOC_PPHRASE;
1.71 kristaps 1127: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1128: m->flags |= MDOC_PPHRASE;
1129:
1.82 kristaps 1130: if ( ! phrase(m, line, la, buf))
1.1 kristaps 1131: return(0);
1.71 kristaps 1132:
1.65 kristaps 1133: m->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1134: continue;
1135: }
1136:
1.54 kristaps 1137: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1138:
1139: if (MDOC_MAX == ntok) {
1.105 kristaps 1140: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1141: return(0);
1.53 kristaps 1142: continue;
1.45 kristaps 1143: }
1.53 kristaps 1144:
1.82 kristaps 1145: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.45 kristaps 1146: return(0);
1.53 kristaps 1147: break;
1.45 kristaps 1148: }
1.1 kristaps 1149:
1.45 kristaps 1150: if (NULL == head) {
1151: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1152: return(0);
1.45 kristaps 1153: head = m->last;
1.1 kristaps 1154: }
1155:
1.63 kristaps 1156: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1157: return(0);
1.19 kristaps 1158:
1.49 kristaps 1159: /* If we've already opened our body, exit now. */
1.45 kristaps 1160:
1.49 kristaps 1161: if (NULL != body)
1.77 kristaps 1162: goto out;
1.19 kristaps 1163:
1.47 kristaps 1164: /*
1.49 kristaps 1165: * If there is an open (i.e., unvalidated) sub-block requiring
1166: * explicit close-out, postpone switching the current block from
1167: * head to body until the rew_sub() call closing out that
1168: * sub-block.
1.47 kristaps 1169: */
1170: for (n = m->last; n && n != head; n = n->parent) {
1.49 kristaps 1171: if (MDOC_BLOCK == n->type &&
1172: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1173: ! (MDOC_VALID & n->flags)) {
1.47 kristaps 1174: n->pending = head;
1175: return(1);
1176: }
1177: }
1178:
1.45 kristaps 1179: /* Close out scopes to remain in a consistent state. */
1180:
1.32 kristaps 1181: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1182: return(0);
1.32 kristaps 1183: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1184: return(0);
1185:
1.77 kristaps 1186: out:
1187: if ( ! (MDOC_FREECOL & m->flags))
1188: return(1);
1189:
1190: if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1191: return(0);
1192: if ( ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1193: return(0);
1194:
1195: m->flags &= ~MDOC_FREECOL;
1.1 kristaps 1196: return(1);
1197: }
1198:
1199:
1200: static int
1201: blk_part_imp(MACRO_PROT_ARGS)
1202: {
1.63 kristaps 1203: int la, nl;
1.53 kristaps 1204: enum mdoct ntok;
1.55 kristaps 1205: enum margserr ac;
1.1 kristaps 1206: char *p;
1.43 kristaps 1207: struct mdoc_node *blk; /* saved block context */
1208: struct mdoc_node *body; /* saved body context */
1209: struct mdoc_node *n;
1.1 kristaps 1210:
1.63 kristaps 1211: nl = MDOC_NEWLINE & m->flags;
1212:
1.43 kristaps 1213: /*
1214: * A macro that spans to the end of the line. This is generally
1215: * (but not necessarily) called as the first macro. The block
1216: * has a head as the immediate child, which is always empty,
1217: * followed by zero or more opening punctuation nodes, then the
1218: * body (which may be empty, depending on the macro), then zero
1219: * or more closing punctuation nodes.
1220: */
1.32 kristaps 1221:
1222: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1223: return(0);
1.43 kristaps 1224:
1.32 kristaps 1225: blk = m->last;
1.43 kristaps 1226:
1.32 kristaps 1227: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1228: return(0);
1.32 kristaps 1229: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1230: return(0);
1231:
1.43 kristaps 1232: /*
1233: * Open the body scope "on-demand", that is, after we've
1234: * processed all our the leading delimiters (open parenthesis,
1235: * etc.).
1236: */
1.1 kristaps 1237:
1.43 kristaps 1238: for (body = NULL; ; ) {
1.32 kristaps 1239: la = *pos;
1.53 kristaps 1240: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.43 kristaps 1241:
1.53 kristaps 1242: if (ARGS_ERROR == ac)
1.1 kristaps 1243: return(0);
1.53 kristaps 1244: if (ARGS_EOLN == ac)
1.43 kristaps 1245: break;
1.53 kristaps 1246: if (ARGS_PUNCT == ac)
1.1 kristaps 1247: break;
1248:
1.53 kristaps 1249: if (NULL == body && ARGS_QWORD != ac &&
1.105 kristaps 1250: DELIM_OPEN == mdoc_isdelim(p)) {
1251: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.1 kristaps 1252: return(0);
1253: continue;
1254: }
1255:
1.43 kristaps 1256: if (NULL == body) {
1257: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1258: return(0);
1259: body = m->last;
1260: }
1261:
1.54 kristaps 1262: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1263:
1264: if (MDOC_MAX == ntok) {
1.105 kristaps 1265: if ( ! dword(m, line, la, p, DELIM_MAX))
1.43 kristaps 1266: return(0);
1.53 kristaps 1267: continue;
1268: }
1.43 kristaps 1269:
1.82 kristaps 1270: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1271: return(0);
1.53 kristaps 1272: break;
1.1 kristaps 1273: }
1274:
1.43 kristaps 1275: /* Clean-ups to leave in a consistent state. */
1276:
1.44 kristaps 1277: if (NULL == body) {
1278: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1279: return(0);
1280: body = m->last;
1.64 kristaps 1281: }
1282:
1283: for (n = body->child; n && n->next; n = n->next)
1284: /* Do nothing. */ ;
1285:
1286: /*
1287: * End of sentence spacing: if the last node is a text node and
1288: * has a trailing period, then mark it as being end-of-sentence.
1289: */
1290:
1291: if (n && MDOC_TEXT == n->type && n->string)
1.93 schwarze 1292: if (mandoc_eos(n->string, strlen(n->string), 1))
1.64 kristaps 1293: n->flags |= MDOC_EOS;
1294:
1295: /* Up-propogate the end-of-space flag. */
1296:
1297: if (n && (MDOC_EOS & n->flags)) {
1298: body->flags |= MDOC_EOS;
1299: body->parent->flags |= MDOC_EOS;
1.44 kristaps 1300: }
1.43 kristaps 1301:
1.83 schwarze 1302: /*
1303: * If there is an open sub-block requiring explicit close-out,
1304: * postpone closing out the current block
1305: * until the rew_sub() call closing out the sub-block.
1306: */
1307: for (n = m->last; n && n != body && n != blk->parent; n = n->parent) {
1308: if (MDOC_BLOCK == n->type &&
1309: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1310: ! (MDOC_VALID & n->flags)) {
1.98 kristaps 1311: make_pending(n, tok, m, line, ppos);
1.83 schwarze 1312: if ( ! mdoc_endbody_alloc(m, line, ppos,
1313: tok, body, ENDBODY_NOSPACE))
1314: return(0);
1315: return(1);
1316: }
1317: }
1318:
1.32 kristaps 1319: /*
1320: * If we can't rewind to our body, then our scope has already
1321: * been closed by another macro (like `Oc' closing `Op'). This
1322: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1323: * crufty use of `Op' breakage.
1.1 kristaps 1324: */
1.103 kristaps 1325: if (n != body)
1.104 kristaps 1326: mandoc_vmsg(MANDOCERR_SCOPENEST, m->parse, line, ppos,
1.103 kristaps 1327: "%s broken", mdoc_macronames[tok]);
1.43 kristaps 1328:
1.83 schwarze 1329: if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos))
1.32 kristaps 1330: return(0);
1.1 kristaps 1331:
1.32 kristaps 1332: /* Standard appending of delimiters. */
1.1 kristaps 1333:
1.63 kristaps 1334: if (nl && ! append_delims(m, line, pos, buf))
1.1 kristaps 1335: return(0);
1336:
1.32 kristaps 1337: /* Rewind scope, if applicable. */
1.1 kristaps 1338:
1.83 schwarze 1339: if (n && ! rew_sub(MDOC_BLOCK, m, tok, line, ppos))
1.1 kristaps 1340: return(0);
1341:
1342: return(1);
1343: }
1344:
1345:
1346: static int
1347: blk_part_exp(MACRO_PROT_ARGS)
1348: {
1.60 kristaps 1349: int la, nl;
1.55 kristaps 1350: enum margserr ac;
1.43 kristaps 1351: struct mdoc_node *head; /* keep track of head */
1352: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1353: char *p;
1.53 kristaps 1354: enum mdoct ntok;
1.1 kristaps 1355:
1.60 kristaps 1356: nl = MDOC_NEWLINE & m->flags;
1357:
1.43 kristaps 1358: /*
1359: * The opening of an explicit macro having zero or more leading
1360: * punctuation nodes; a head with optional single element (the
1361: * case of `Eo'); and a body that may be empty.
1362: */
1.32 kristaps 1363:
1364: if ( ! mdoc_block_alloc(m, line, ppos, tok, NULL))
1.1 kristaps 1365: return(0);
1.32 kristaps 1366:
1.43 kristaps 1367: for (head = body = NULL; ; ) {
1.32 kristaps 1368: la = *pos;
1.53 kristaps 1369: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1370:
1.53 kristaps 1371: if (ARGS_ERROR == ac)
1.1 kristaps 1372: return(0);
1.53 kristaps 1373: if (ARGS_PUNCT == ac)
1.1 kristaps 1374: break;
1.53 kristaps 1375: if (ARGS_EOLN == ac)
1.1 kristaps 1376: break;
1.43 kristaps 1377:
1378: /* Flush out leading punctuation. */
1379:
1.53 kristaps 1380: if (NULL == head && ARGS_QWORD != ac &&
1.105 kristaps 1381: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1382: assert(NULL == body);
1.105 kristaps 1383: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.43 kristaps 1384: return(0);
1385: continue;
1386: }
1387:
1388: if (NULL == head) {
1389: assert(NULL == body);
1390: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1.1 kristaps 1391: return(0);
1.43 kristaps 1392: head = m->last;
1.1 kristaps 1393: }
1394:
1.43 kristaps 1395: /*
1396: * `Eo' gobbles any data into the head, but most other
1397: * macros just immediately close out and begin the body.
1398: */
1399:
1400: if (NULL == body) {
1401: assert(head);
1402: /* No check whether it's a macro! */
1403: if (MDOC_Eo == tok)
1.105 kristaps 1404: if ( ! dword(m, line, la, p, DELIM_MAX))
1.43 kristaps 1405: return(0);
1406:
1.32 kristaps 1407: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1408: return(0);
1.32 kristaps 1409: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1410: return(0);
1.43 kristaps 1411: body = m->last;
1412:
1413: if (MDOC_Eo == tok)
1414: continue;
1.1 kristaps 1415: }
1.43 kristaps 1416:
1417: assert(NULL != head && NULL != body);
1418:
1.54 kristaps 1419: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1420:
1421: if (MDOC_MAX == ntok) {
1.105 kristaps 1422: if ( ! dword(m, line, la, p, DELIM_MAX))
1.43 kristaps 1423: return(0);
1.53 kristaps 1424: continue;
1.43 kristaps 1425: }
1426:
1.82 kristaps 1427: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1428: return(0);
1.53 kristaps 1429: break;
1.1 kristaps 1430: }
1431:
1.43 kristaps 1432: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1433:
1.43 kristaps 1434: if (NULL == head) {
1435: if ( ! mdoc_head_alloc(m, line, ppos, tok))
1436: return(0);
1437: head = m->last;
1438: }
1439:
1440: if (NULL == body) {
1.32 kristaps 1441: if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos))
1.1 kristaps 1442: return(0);
1.32 kristaps 1443: if ( ! mdoc_body_alloc(m, line, ppos, tok))
1.1 kristaps 1444: return(0);
1.43 kristaps 1445: body = m->last;
1.1 kristaps 1446: }
1447:
1.32 kristaps 1448: /* Standard appending of delimiters. */
1449:
1.60 kristaps 1450: if ( ! nl)
1.1 kristaps 1451: return(1);
1.32 kristaps 1452: return(append_delims(m, line, pos, buf));
1.1 kristaps 1453: }
1454:
1455:
1.61 kristaps 1456: /* ARGSUSED */
1.1 kristaps 1457: static int
1458: in_line_argn(MACRO_PROT_ARGS)
1459: {
1.60 kristaps 1460: int la, flushed, j, maxargs, nl;
1.55 kristaps 1461: enum margserr ac;
1.56 kristaps 1462: enum margverr av;
1.53 kristaps 1463: struct mdoc_arg *arg;
1464: char *p;
1465: enum mdoct ntok;
1.1 kristaps 1466:
1.60 kristaps 1467: nl = MDOC_NEWLINE & m->flags;
1468:
1.46 kristaps 1469: /*
1470: * A line macro that has a fixed number of arguments (maxargs).
1471: * Only open the scope once the first non-leading-punctuation is
1472: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1473: * keep it open until the maximum number of arguments are
1474: * exhausted.
1475: */
1.1 kristaps 1476:
1477: switch (tok) {
1478: case (MDOC_Ap):
1479: /* FALLTHROUGH */
1480: case (MDOC_No):
1481: /* FALLTHROUGH */
1482: case (MDOC_Ns):
1483: /* FALLTHROUGH */
1484: case (MDOC_Ux):
1485: maxargs = 0;
1486: break;
1.101 kristaps 1487: case (MDOC_Bx):
1488: /* FALLTHROUGH */
1.42 kristaps 1489: case (MDOC_Xr):
1490: maxargs = 2;
1491: break;
1.1 kristaps 1492: default:
1493: maxargs = 1;
1494: break;
1495: }
1496:
1.46 kristaps 1497: for (arg = NULL; ; ) {
1.32 kristaps 1498: la = *pos;
1.56 kristaps 1499: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1500:
1.56 kristaps 1501: if (ARGV_WORD == av) {
1.32 kristaps 1502: *pos = la;
1.1 kristaps 1503: break;
1504: }
1505:
1.56 kristaps 1506: if (ARGV_EOLN == av)
1.1 kristaps 1507: break;
1.56 kristaps 1508: if (ARGV_ARG == av)
1.1 kristaps 1509: continue;
1510:
1511: mdoc_argv_free(arg);
1512: return(0);
1513: }
1514:
1.46 kristaps 1515: for (flushed = j = 0; ; ) {
1.32 kristaps 1516: la = *pos;
1.53 kristaps 1517: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1518:
1.53 kristaps 1519: if (ARGS_ERROR == ac)
1.1 kristaps 1520: return(0);
1.53 kristaps 1521: if (ARGS_PUNCT == ac)
1.1 kristaps 1522: break;
1.53 kristaps 1523: if (ARGS_EOLN == ac)
1.1 kristaps 1524: break;
1525:
1.46 kristaps 1526: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.105 kristaps 1527: ARGS_QWORD != ac && 0 == j &&
1528: DELIM_OPEN == mdoc_isdelim(p)) {
1529: if ( ! dword(m, line, la, p, DELIM_OPEN))
1.46 kristaps 1530: return(0);
1531: continue;
1532: } else if (0 == j)
1533: if ( ! mdoc_elem_alloc(m, line, la, tok, arg))
1534: return(0);
1535:
1536: if (j == maxargs && ! flushed) {
1537: if ( ! rew_elem(m, tok))
1538: return(0);
1539: flushed = 1;
1540: }
1541:
1.54 kristaps 1542: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1543:
1544: if (MDOC_MAX != ntok) {
1.32 kristaps 1545: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1546: return(0);
1547: flushed = 1;
1.82 kristaps 1548: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.1 kristaps 1549: return(0);
1.46 kristaps 1550: j++;
1.1 kristaps 1551: break;
1552: }
1553:
1554: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1555: ARGS_QWORD != ac &&
1.67 schwarze 1556: ! flushed &&
1.105 kristaps 1557: DELIM_NONE != mdoc_isdelim(p)) {
1.32 kristaps 1558: if ( ! rew_elem(m, tok))
1.1 kristaps 1559: return(0);
1560: flushed = 1;
1561: }
1.42 kristaps 1562:
1563: /*
1564: * XXX: this is a hack to work around groff's ugliness
1565: * as regards `Xr' and extraneous arguments. It should
1566: * ideally be deprecated behaviour, but because this is
1567: * code is no here, it's unlikely to be removed.
1568: */
1.43 kristaps 1569:
1.46 kristaps 1570: #ifdef __OpenBSD__
1.42 kristaps 1571: if (MDOC_Xr == tok && j == maxargs) {
1.46 kristaps 1572: if ( ! mdoc_elem_alloc(m, line, la, MDOC_Ns, NULL))
1.42 kristaps 1573: return(0);
1574: if ( ! rew_elem(m, MDOC_Ns))
1575: return(0);
1576: }
1.46 kristaps 1577: #endif
1.42 kristaps 1578:
1.105 kristaps 1579: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1580: return(0);
1.46 kristaps 1581: j++;
1.1 kristaps 1582: }
1583:
1.46 kristaps 1584: if (0 == j && ! mdoc_elem_alloc(m, line, la, tok, arg))
1585: return(0);
1586:
1587: /* Close out in a consistent state. */
1.32 kristaps 1588:
1589: if ( ! flushed && ! rew_elem(m, tok))
1.1 kristaps 1590: return(0);
1.60 kristaps 1591: if ( ! nl)
1.1 kristaps 1592: return(1);
1.32 kristaps 1593: return(append_delims(m, line, pos, buf));
1.1 kristaps 1594: }
1595:
1596:
1597: static int
1598: in_line_eoln(MACRO_PROT_ARGS)
1599: {
1.56 kristaps 1600: int la;
1.55 kristaps 1601: enum margserr ac;
1.56 kristaps 1602: enum margverr av;
1.53 kristaps 1603: struct mdoc_arg *arg;
1604: char *p;
1605: enum mdoct ntok;
1.1 kristaps 1606:
1607: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1608:
1.90 schwarze 1609: if (tok == MDOC_Pp)
1610: rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos);
1611:
1.32 kristaps 1612: /* Parse macro arguments. */
1.1 kristaps 1613:
1.32 kristaps 1614: for (arg = NULL; ; ) {
1.1 kristaps 1615: la = *pos;
1.56 kristaps 1616: av = mdoc_argv(m, line, tok, &arg, pos, buf);
1.1 kristaps 1617:
1.56 kristaps 1618: if (ARGV_WORD == av) {
1.1 kristaps 1619: *pos = la;
1620: break;
1621: }
1.56 kristaps 1622: if (ARGV_EOLN == av)
1.1 kristaps 1623: break;
1.56 kristaps 1624: if (ARGV_ARG == av)
1.1 kristaps 1625: continue;
1626:
1627: mdoc_argv_free(arg);
1628: return(0);
1629: }
1630:
1.32 kristaps 1631: /* Open element scope. */
1632:
1633: if ( ! mdoc_elem_alloc(m, line, ppos, tok, arg))
1.1 kristaps 1634: return(0);
1635:
1.32 kristaps 1636: /* Parse argument terms. */
1.1 kristaps 1637:
1638: for (;;) {
1639: la = *pos;
1.53 kristaps 1640: ac = mdoc_args(m, line, pos, buf, tok, &p);
1.1 kristaps 1641:
1.53 kristaps 1642: if (ARGS_ERROR == ac)
1.1 kristaps 1643: return(0);
1.53 kristaps 1644: if (ARGS_EOLN == ac)
1.1 kristaps 1645: break;
1646:
1.53 kristaps 1647: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1648:
1.53 kristaps 1649: if (MDOC_MAX == ntok) {
1.105 kristaps 1650: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1651: return(0);
1.53 kristaps 1652: continue;
1653: }
1.1 kristaps 1654:
1.53 kristaps 1655: if ( ! rew_elem(m, tok))
1.1 kristaps 1656: return(0);
1.82 kristaps 1657: return(mdoc_macro(m, ntok, line, la, pos, buf));
1.1 kristaps 1658: }
1659:
1.32 kristaps 1660: /* Close out (no delimiters). */
1661:
1662: return(rew_elem(m, tok));
1.1 kristaps 1663: }
1664:
1665:
1666: /* ARGSUSED */
1667: static int
1.41 kristaps 1668: ctx_synopsis(MACRO_PROT_ARGS)
1669: {
1.60 kristaps 1670: int nl;
1671:
1672: nl = MDOC_NEWLINE & m->flags;
1.41 kristaps 1673:
1674: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.90 schwarze 1675: if ( ! (MDOC_SYNOPSIS & m->flags))
1.82 kristaps 1676: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1677:
1678: /* If we're a nested call, same place. */
1.60 kristaps 1679: if ( ! nl)
1.82 kristaps 1680: return(in_line(m, tok, line, ppos, pos, buf));
1.41 kristaps 1681:
1682: /*
1683: * XXX: this will open a block scope; however, if later we end
1684: * up formatting the block scope, then child nodes will inherit
1685: * the formatting. Be careful.
1686: */
1.88 schwarze 1687: if (MDOC_Nm == tok)
1688: return(blk_full(m, tok, line, ppos, pos, buf));
1689: assert(MDOC_Vt == tok);
1.82 kristaps 1690: return(blk_part_imp(m, tok, line, ppos, pos, buf));
1.41 kristaps 1691: }
1692:
1693:
1694: /* ARGSUSED */
1695: static int
1.1 kristaps 1696: obsolete(MACRO_PROT_ARGS)
1697: {
1698:
1.103 kristaps 1699: mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS);
1700: return(1);
1.1 kristaps 1701: }
1702:
1703:
1.24 kristaps 1704: /*
1705: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1706: * They're unusual because they're basically free-form text until a
1707: * macro is encountered.
1708: */
1.1 kristaps 1709: static int
1.82 kristaps 1710: phrase(struct mdoc *m, int line, int ppos, char *buf)
1.1 kristaps 1711: {
1.53 kristaps 1712: int la, pos;
1.75 kristaps 1713: enum margserr ac;
1.53 kristaps 1714: enum mdoct ntok;
1715: char *p;
1.1 kristaps 1716:
1.24 kristaps 1717: for (pos = ppos; ; ) {
1718: la = pos;
1.1 kristaps 1719:
1.107 ! kristaps 1720: ac = mdoc_zargs(m, line, &pos, buf, &p);
1.1 kristaps 1721:
1.75 kristaps 1722: if (ARGS_ERROR == ac)
1.24 kristaps 1723: return(0);
1.75 kristaps 1724: if (ARGS_EOLN == ac)
1.24 kristaps 1725: break;
1.1 kristaps 1726:
1.75 kristaps 1727: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1728:
1.53 kristaps 1729: if (MDOC_MAX == ntok) {
1.105 kristaps 1730: if ( ! dword(m, line, la, p, DELIM_MAX))
1.1 kristaps 1731: return(0);
1.53 kristaps 1732: continue;
1733: }
1.1 kristaps 1734:
1.82 kristaps 1735: if ( ! mdoc_macro(m, ntok, line, la, &pos, buf))
1.1 kristaps 1736: return(0);
1.53 kristaps 1737: return(append_delims(m, line, &pos, buf));
1.1 kristaps 1738: }
1739:
1740: return(1);
1741: }
1.24 kristaps 1742:
1743:
1.79 kristaps 1744: /* ARGSUSED */
1.75 kristaps 1745: static int
1746: phrase_ta(MACRO_PROT_ARGS)
1747: {
1748: int la;
1749: enum mdoct ntok;
1750: enum margserr ac;
1751: char *p;
1752:
1753: /*
1754: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1755: * it should simply error out with ARGSLOST.
1756: */
1757:
1758: if ( ! rew_sub(MDOC_BODY, m, MDOC_It, line, ppos))
1759: return(0);
1760: if ( ! mdoc_body_alloc(m, line, ppos, MDOC_It))
1761: return(0);
1762:
1763: for (;;) {
1764: la = *pos;
1.107 ! kristaps 1765: ac = mdoc_zargs(m, line, pos, buf, &p);
1.75 kristaps 1766:
1767: if (ARGS_ERROR == ac)
1768: return(0);
1769: if (ARGS_EOLN == ac)
1770: break;
1771:
1772: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1773:
1774: if (MDOC_MAX == ntok) {
1.105 kristaps 1775: if ( ! dword(m, line, la, p, DELIM_MAX))
1.75 kristaps 1776: return(0);
1777: continue;
1778: }
1779:
1.82 kristaps 1780: if ( ! mdoc_macro(m, ntok, line, la, pos, buf))
1.75 kristaps 1781: return(0);
1782: return(append_delims(m, line, pos, buf));
1783: }
1784:
1785: return(1);
1786: }
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