Annotation of mandoc/mdoc_macro.c, Revision 1.122
1.122 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.121 2012/11/19 22:30:58 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 &&
1.120 schwarze 615: mdoc->last->prev->tok != MDOC_No &&
616: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 617: mdoc->last->flags |= MDOC_DELIMC;
1.105 kristaps 618:
619: return(1);
620: }
1.1 kristaps 621:
622: static int
1.119 schwarze 623: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 624: {
1.66 kristaps 625: int la;
1.55 kristaps 626: enum margserr ac;
1.1 kristaps 627: char *p;
628:
1.66 kristaps 629: if ('\0' == buf[*pos])
1.1 kristaps 630: return(1);
631:
632: for (;;) {
1.66 kristaps 633: la = *pos;
1.119 schwarze 634: ac = mdoc_zargs(mdoc, line, pos, buf, &p);
1.1 kristaps 635:
1.53 kristaps 636: if (ARGS_ERROR == ac)
1.1 kristaps 637: return(0);
1.53 kristaps 638: else if (ARGS_EOLN == ac)
1.1 kristaps 639: break;
1.66 kristaps 640:
1.119 schwarze 641: dword(mdoc, line, la, p, DELIM_MAX);
1.66 kristaps 642:
643: /*
644: * If we encounter end-of-sentence symbols, then trigger
645: * the double-space.
646: *
1.109 kristaps 647: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 648: * the last symbol, such that `. )' will cause the
649: * correct double-spacing. However, (1) groff isn't
650: * smart enough to do this and (2) it would require
651: * knowing which symbols break this behaviour, for
1.109 kristaps 652: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 653: */
1.93 schwarze 654: if (mandoc_eos(p, strlen(p), 0))
1.119 schwarze 655: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 656: }
657:
658: return(1);
659: }
660:
661:
662: /*
663: * Close out block partial/full explicit.
664: */
665: static int
666: blk_exp_close(MACRO_PROT_ARGS)
667: {
1.83 schwarze 668: struct mdoc_node *body; /* Our own body. */
669: struct mdoc_node *later; /* A sub-block starting later. */
670: struct mdoc_node *n; /* For searching backwards. */
671:
1.60 kristaps 672: int j, lastarg, maxargs, flushed, nl;
1.55 kristaps 673: enum margserr ac;
1.83 schwarze 674: enum mdoct atok, ntok;
1.1 kristaps 675: char *p;
676:
1.119 schwarze 677: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 678:
1.1 kristaps 679: switch (tok) {
680: case (MDOC_Ec):
681: maxargs = 1;
682: break;
683: default:
684: maxargs = 0;
685: break;
686: }
687:
1.83 schwarze 688: /*
689: * Search backwards for beginnings of blocks,
690: * both of our own and of pending sub-blocks.
691: */
692: atok = rew_alt(tok);
693: body = later = NULL;
1.119 schwarze 694: for (n = mdoc->last; n; n = n->parent) {
1.83 schwarze 695: if (MDOC_VALID & n->flags)
696: continue;
697:
698: /* Remember the start of our own body. */
699: if (MDOC_BODY == n->type && atok == n->tok) {
1.87 kristaps 700: if (ENDBODY_NOT == n->end)
1.83 schwarze 701: body = n;
702: continue;
703: }
704:
1.88 schwarze 705: if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok)
1.83 schwarze 706: continue;
707: if (atok == n->tok) {
708: assert(body);
709:
710: /*
711: * Found the start of our own block.
712: * When there is no pending sub block,
713: * just proceed to closing out.
714: */
715: if (NULL == later)
716: break;
717:
718: /*
719: * When there is a pending sub block,
720: * postpone closing out the current block
721: * until the rew_sub() closing out the sub-block.
722: */
1.119 schwarze 723: make_pending(later, tok, mdoc, line, ppos);
1.83 schwarze 724:
725: /*
726: * Mark the place where the formatting - but not
727: * the scope - of the current block ends.
728: */
1.119 schwarze 729: if ( ! mdoc_endbody_alloc(mdoc, line, ppos,
1.83 schwarze 730: atok, body, ENDBODY_SPACE))
731: return(0);
732: break;
733: }
734:
735: /*
736: * When finding an open sub block, remember the last
737: * open explicit block, or, in case there are only
738: * implicit ones, the first open implicit block.
739: */
740: if (later &&
741: MDOC_EXPLICIT & mdoc_macros[later->tok].flags)
742: continue;
1.118 schwarze 743: if (MDOC_It != n->tok)
1.83 schwarze 744: later = n;
745: }
746:
1.1 kristaps 747: if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
1.68 kristaps 748: /* FIXME: do this in validate */
1.22 kristaps 749: if (buf[*pos])
1.119 schwarze 750: mdoc_pmsg(mdoc, line, ppos, MANDOCERR_ARGSLOST);
1.22 kristaps 751:
1.119 schwarze 752: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.22 kristaps 753: return(0);
1.119 schwarze 754: return(rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos));
1.1 kristaps 755: }
756:
1.119 schwarze 757: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.1 kristaps 758: return(0);
759:
1.83 schwarze 760: if (NULL == later && maxargs > 0)
1.119 schwarze 761: if ( ! mdoc_tail_alloc(mdoc, line, ppos, rew_alt(tok)))
1.1 kristaps 762: return(0);
763:
1.27 kristaps 764: for (flushed = j = 0; ; j++) {
1.1 kristaps 765: lastarg = *pos;
766:
767: if (j == maxargs && ! flushed) {
1.119 schwarze 768: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 769: return(0);
770: flushed = 1;
771: }
772:
1.119 schwarze 773: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 774:
1.53 kristaps 775: if (ARGS_ERROR == ac)
1.1 kristaps 776: return(0);
1.53 kristaps 777: if (ARGS_PUNCT == ac)
1.1 kristaps 778: break;
1.53 kristaps 779: if (ARGS_EOLN == ac)
1.1 kristaps 780: break;
781:
1.54 kristaps 782: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
783:
784: if (MDOC_MAX == ntok) {
1.119 schwarze 785: if ( ! dword(mdoc, line, lastarg, p, DELIM_MAX))
1.1 kristaps 786: return(0);
1.54 kristaps 787: continue;
788: }
1.1 kristaps 789:
1.54 kristaps 790: if ( ! flushed) {
1.119 schwarze 791: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.54 kristaps 792: return(0);
793: flushed = 1;
794: }
1.122 ! schwarze 795:
! 796: mdoc->flags &= ~MDOC_NEWLINE;
! 797:
1.119 schwarze 798: if ( ! mdoc_macro(mdoc, ntok, line, lastarg, pos, buf))
1.1 kristaps 799: return(0);
1.54 kristaps 800: break;
1.1 kristaps 801: }
802:
1.119 schwarze 803: if ( ! flushed && ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 804: return(0);
805:
1.60 kristaps 806: if ( ! nl)
1.1 kristaps 807: return(1);
1.119 schwarze 808: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 809: }
810:
811:
812: static int
813: in_line(MACRO_PROT_ARGS)
814: {
1.70 kristaps 815: int la, scope, cnt, nc, nl;
1.56 kristaps 816: enum margverr av;
1.53 kristaps 817: enum mdoct ntok;
1.55 kristaps 818: enum margserr ac;
1.67 schwarze 819: enum mdelim d;
1.53 kristaps 820: struct mdoc_arg *arg;
821: char *p;
1.1 kristaps 822:
1.119 schwarze 823: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 824:
1.4 kristaps 825: /*
826: * Whether we allow ignored elements (those without content,
827: * usually because of reserved words) to squeak by.
828: */
1.45 kristaps 829:
1.4 kristaps 830: switch (tok) {
1.26 kristaps 831: case (MDOC_An):
832: /* FALLTHROUGH */
833: case (MDOC_Ar):
1.4 kristaps 834: /* FALLTHROUGH */
835: case (MDOC_Fl):
836: /* FALLTHROUGH */
1.96 kristaps 837: case (MDOC_Mt):
1.12 kristaps 838: /* FALLTHROUGH */
1.26 kristaps 839: case (MDOC_Nm):
840: /* FALLTHROUGH */
1.25 kristaps 841: case (MDOC_Pa):
1.4 kristaps 842: nc = 1;
843: break;
844: default:
845: nc = 0;
846: break;
847: }
848:
1.27 kristaps 849: for (arg = NULL;; ) {
1.1 kristaps 850: la = *pos;
1.119 schwarze 851: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 852:
1.56 kristaps 853: if (ARGV_WORD == av) {
1.1 kristaps 854: *pos = la;
855: break;
856: }
1.56 kristaps 857: if (ARGV_EOLN == av)
1.1 kristaps 858: break;
1.56 kristaps 859: if (ARGV_ARG == av)
1.1 kristaps 860: continue;
861:
862: mdoc_argv_free(arg);
863: return(0);
864: }
865:
1.70 kristaps 866: for (cnt = scope = 0;; ) {
1.1 kristaps 867: la = *pos;
1.119 schwarze 868: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 869:
1.53 kristaps 870: if (ARGS_ERROR == ac)
1.1 kristaps 871: return(0);
1.53 kristaps 872: if (ARGS_EOLN == ac)
1.1 kristaps 873: break;
1.53 kristaps 874: if (ARGS_PUNCT == ac)
1.1 kristaps 875: break;
876:
1.53 kristaps 877: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 878:
1.4 kristaps 879: /*
880: * In this case, we've located a submacro and must
881: * execute it. Close out scope, if open. If no
882: * elements have been generated, either create one (nc)
883: * or raise a warning.
884: */
1.1 kristaps 885:
1.53 kristaps 886: if (MDOC_MAX != ntok) {
1.119 schwarze 887: if (scope && ! rew_elem(mdoc, tok))
1.1 kristaps 888: return(0);
1.4 kristaps 889: if (nc && 0 == cnt) {
1.119 schwarze 890: if ( ! mdoc_elem_alloc(mdoc, line,
891: ppos, tok, arg))
1.3 kristaps 892: return(0);
1.119 schwarze 893: if ( ! rew_last(mdoc, mdoc->last))
1.12 kristaps 894: return(0);
1.7 kristaps 895: } else if ( ! nc && 0 == cnt) {
896: mdoc_argv_free(arg);
1.119 schwarze 897: mdoc_pmsg(mdoc, line, ppos,
898: MANDOCERR_MACROEMPTY);
1.7 kristaps 899: }
1.103 kristaps 900:
1.119 schwarze 901: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 902: return(0);
1.60 kristaps 903: if ( ! nl)
1.1 kristaps 904: return(1);
1.119 schwarze 905: return(append_delims(mdoc, line, pos, buf));
1.29 kristaps 906: }
1.1 kristaps 907:
1.4 kristaps 908: /*
909: * Non-quote-enclosed punctuation. Set up our scope, if
910: * a word; rewind the scope, if a delimiter; then append
911: * the word.
912: */
1.1 kristaps 913:
1.105 kristaps 914: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 915:
1.70 kristaps 916: if (DELIM_NONE != d) {
917: /*
918: * If we encounter closing punctuation, no word
919: * has been omitted, no scope is open, and we're
920: * allowed to have an empty element, then start
921: * a new scope. `Ar', `Fl', and `Li', only do
922: * this once per invocation. There may be more
923: * of these (all of them?).
924: */
925: if (0 == cnt && (nc || MDOC_Li == tok) &&
926: DELIM_CLOSE == d && ! scope) {
1.119 schwarze 927: if ( ! mdoc_elem_alloc(mdoc, line,
928: ppos, tok, arg))
1.70 kristaps 929: return(0);
930: if (MDOC_Ar == tok || MDOC_Li == tok ||
931: MDOC_Fl == tok)
932: cnt++;
933: scope = 1;
934: }
935: /*
936: * Close out our scope, if one is open, before
937: * any punctuation.
938: */
1.119 schwarze 939: if (scope && ! rew_elem(mdoc, tok))
1.1 kristaps 940: return(0);
1.70 kristaps 941: scope = 0;
942: } else if ( ! scope) {
1.119 schwarze 943: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 944: return(0);
1.70 kristaps 945: scope = 1;
1.1 kristaps 946: }
947:
1.67 schwarze 948: if (DELIM_NONE == d)
1.3 kristaps 949: cnt++;
1.105 kristaps 950:
1.119 schwarze 951: if ( ! dword(mdoc, line, la, p, d))
1.1 kristaps 952: return(0);
1.39 kristaps 953:
954: /*
955: * `Fl' macros have their scope re-opened with each new
956: * word so that the `-' can be added to each one without
957: * having to parse out spaces.
958: */
1.70 kristaps 959: if (scope && MDOC_Fl == tok) {
1.119 schwarze 960: if ( ! rew_elem(mdoc, tok))
1.39 kristaps 961: return(0);
1.70 kristaps 962: scope = 0;
1.39 kristaps 963: }
1.1 kristaps 964: }
965:
1.119 schwarze 966: if (scope && ! rew_elem(mdoc, tok))
1.1 kristaps 967: return(0);
1.4 kristaps 968:
969: /*
970: * If no elements have been collected and we're allowed to have
971: * empties (nc), open a scope and close it out. Otherwise,
972: * raise a warning.
973: */
1.45 kristaps 974:
1.4 kristaps 975: if (nc && 0 == cnt) {
1.119 schwarze 976: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.3 kristaps 977: return(0);
1.119 schwarze 978: if ( ! rew_last(mdoc, mdoc->last))
1.12 kristaps 979: return(0);
1.7 kristaps 980: } else if ( ! nc && 0 == cnt) {
981: mdoc_argv_free(arg);
1.119 schwarze 982: mdoc_pmsg(mdoc, line, ppos, MANDOCERR_MACROEMPTY);
1.7 kristaps 983: }
1.4 kristaps 984:
1.60 kristaps 985: if ( ! nl)
1.1 kristaps 986: return(1);
1.119 schwarze 987: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 988: }
989:
990:
991: static int
992: blk_full(MACRO_PROT_ARGS)
993: {
1.114 kristaps 994: int la, nl, nparsed;
1.1 kristaps 995: struct mdoc_arg *arg;
1.45 kristaps 996: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 997: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 998: struct mdoc_node *n;
1.74 kristaps 999: enum mdoc_type mtt;
1.53 kristaps 1000: enum mdoct ntok;
1.59 kristaps 1001: enum margserr ac, lac;
1.56 kristaps 1002: enum margverr av;
1.1 kristaps 1003: char *p;
1004:
1.119 schwarze 1005: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1006:
1.45 kristaps 1007: /* Close out prior implicit scope. */
1.19 kristaps 1008:
1.1 kristaps 1009: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.119 schwarze 1010: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.1 kristaps 1011: return(0);
1.119 schwarze 1012: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 1013: return(0);
1014: }
1015:
1.45 kristaps 1016: /*
1.109 kristaps 1017: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1018: * macro openings. Implicit ones first close out prior scope
1019: * (seen above). Delay opening the head until necessary to
1020: * allow leading punctuation to print. Special consideration
1021: * for `It -column', which has phrase-part syntax instead of
1022: * regular child nodes.
1023: */
1024:
1.1 kristaps 1025: for (arg = NULL;; ) {
1.45 kristaps 1026: la = *pos;
1.119 schwarze 1027: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1028:
1.56 kristaps 1029: if (ARGV_WORD == av) {
1.45 kristaps 1030: *pos = la;
1.1 kristaps 1031: break;
1032: }
1033:
1.56 kristaps 1034: if (ARGV_EOLN == av)
1.1 kristaps 1035: break;
1.56 kristaps 1036: if (ARGV_ARG == av)
1.1 kristaps 1037: continue;
1038:
1039: mdoc_argv_free(arg);
1040: return(0);
1041: }
1042:
1.119 schwarze 1043: if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 1044: return(0);
1045:
1.49 kristaps 1046: head = body = NULL;
1.115 schwarze 1047:
1048: /*
1049: * Exception: Heads of `It' macros in `-diag' lists are not
1050: * parsed, even though `It' macros in general are parsed.
1051: */
1052: nparsed = MDOC_It == tok &&
1.119 schwarze 1053: MDOC_Bl == mdoc->last->parent->tok &&
1054: LIST_diag == mdoc->last->parent->norm->Bl.type;
1.1 kristaps 1055:
1.45 kristaps 1056: /*
1057: * The `Nd' macro has all arguments in its body: it's a hybrid
1058: * of block partial-explicit and full-implicit. Stupid.
1059: */
1.19 kristaps 1060:
1.45 kristaps 1061: if (MDOC_Nd == tok) {
1.119 schwarze 1062: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.45 kristaps 1063: return(0);
1.119 schwarze 1064: head = mdoc->last;
1065: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.19 kristaps 1066: return(0);
1.119 schwarze 1067: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.19 kristaps 1068: return(0);
1.119 schwarze 1069: body = mdoc->last;
1.19 kristaps 1070: }
1071:
1.59 kristaps 1072: ac = ARGS_ERROR;
1073:
1.62 kristaps 1074: for ( ; ; ) {
1.45 kristaps 1075: la = *pos;
1.75 kristaps 1076: /* Initialise last-phrase-type with ARGS_PEND. */
1077: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.119 schwarze 1078: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.89 schwarze 1079:
1080: if (ARGS_PUNCT == ac)
1081: break;
1.1 kristaps 1082:
1.53 kristaps 1083: if (ARGS_ERROR == ac)
1.1 kristaps 1084: return(0);
1.75 kristaps 1085:
1086: if (ARGS_EOLN == ac) {
1087: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1088: break;
1089: /*
1090: * This is necessary: if the last token on a
1091: * line is a `Ta' or tab, then we'll get
1092: * ARGS_EOLN, so we must be smart enough to
1093: * reopen our scope if the last parse was a
1094: * phrase or partial phrase.
1095: */
1.119 schwarze 1096: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.75 kristaps 1097: return(0);
1.119 schwarze 1098: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.75 kristaps 1099: return(0);
1.119 schwarze 1100: body = mdoc->last;
1.1 kristaps 1101: break;
1.75 kristaps 1102: }
1.45 kristaps 1103:
1.73 kristaps 1104: /*
1105: * Emit leading punctuation (i.e., punctuation before
1106: * the MDOC_HEAD) for non-phrase types.
1107: */
1.45 kristaps 1108:
1.59 kristaps 1109: if (NULL == head &&
1.71 kristaps 1110: ARGS_PEND != ac &&
1.59 kristaps 1111: ARGS_PHRASE != ac &&
1.57 kristaps 1112: ARGS_PPHRASE != ac &&
1.53 kristaps 1113: ARGS_QWORD != ac &&
1.105 kristaps 1114: DELIM_OPEN == mdoc_isdelim(p)) {
1.119 schwarze 1115: if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
1.45 kristaps 1116: return(0);
1117: continue;
1118: }
1119:
1.74 kristaps 1120: /* Open a head if one hasn't been opened. */
1.45 kristaps 1121:
1.74 kristaps 1122: if (NULL == head) {
1.119 schwarze 1123: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.45 kristaps 1124: return(0);
1.119 schwarze 1125: head = mdoc->last;
1.45 kristaps 1126: }
1127:
1.72 kristaps 1128: if (ARGS_PHRASE == ac ||
1129: ARGS_PEND == ac ||
1130: ARGS_PPHRASE == ac) {
1.73 kristaps 1131: /*
1.74 kristaps 1132: * If we haven't opened a body yet, rewind the
1133: * head; if we have, rewind that instead.
1134: */
1135:
1136: mtt = body ? MDOC_BODY : MDOC_HEAD;
1.119 schwarze 1137: if ( ! rew_sub(mtt, mdoc, tok, line, ppos))
1.74 kristaps 1138: return(0);
1139:
1140: /* Then allocate our body context. */
1141:
1.119 schwarze 1142: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.74 kristaps 1143: return(0);
1.119 schwarze 1144: body = mdoc->last;
1.74 kristaps 1145:
1146: /*
1.73 kristaps 1147: * Process phrases: set whether we're in a
1148: * partial-phrase (this effects line handling)
1149: * then call down into the phrase parser.
1150: */
1.74 kristaps 1151:
1.65 kristaps 1152: if (ARGS_PPHRASE == ac)
1.119 schwarze 1153: mdoc->flags |= MDOC_PPHRASE;
1.71 kristaps 1154: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1.119 schwarze 1155: mdoc->flags |= MDOC_PPHRASE;
1.71 kristaps 1156:
1.119 schwarze 1157: if ( ! phrase(mdoc, line, la, buf))
1.1 kristaps 1158: return(0);
1.71 kristaps 1159:
1.119 schwarze 1160: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1161: continue;
1162: }
1163:
1.114 kristaps 1164: ntok = nparsed || ARGS_QWORD == ac ?
1165: MDOC_MAX : lookup(tok, p);
1.54 kristaps 1166:
1167: if (MDOC_MAX == ntok) {
1.119 schwarze 1168: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.1 kristaps 1169: return(0);
1.53 kristaps 1170: continue;
1.45 kristaps 1171: }
1.53 kristaps 1172:
1.119 schwarze 1173: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.45 kristaps 1174: return(0);
1.53 kristaps 1175: break;
1.45 kristaps 1176: }
1.1 kristaps 1177:
1.45 kristaps 1178: if (NULL == head) {
1.119 schwarze 1179: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1180: return(0);
1.119 schwarze 1181: head = mdoc->last;
1.1 kristaps 1182: }
1183:
1.119 schwarze 1184: if (nl && ! append_delims(mdoc, line, pos, buf))
1.1 kristaps 1185: return(0);
1.19 kristaps 1186:
1.49 kristaps 1187: /* If we've already opened our body, exit now. */
1.45 kristaps 1188:
1.49 kristaps 1189: if (NULL != body)
1.77 kristaps 1190: goto out;
1.19 kristaps 1191:
1.47 kristaps 1192: /*
1.49 kristaps 1193: * If there is an open (i.e., unvalidated) sub-block requiring
1194: * explicit close-out, postpone switching the current block from
1195: * head to body until the rew_sub() call closing out that
1196: * sub-block.
1.47 kristaps 1197: */
1.119 schwarze 1198: for (n = mdoc->last; n && n != head; n = n->parent) {
1.49 kristaps 1199: if (MDOC_BLOCK == n->type &&
1200: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1201: ! (MDOC_VALID & n->flags)) {
1.47 kristaps 1202: n->pending = head;
1203: return(1);
1204: }
1205: }
1206:
1.45 kristaps 1207: /* Close out scopes to remain in a consistent state. */
1208:
1.119 schwarze 1209: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1210: return(0);
1.119 schwarze 1211: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1212: return(0);
1213:
1.77 kristaps 1214: out:
1.119 schwarze 1215: if ( ! (MDOC_FREECOL & mdoc->flags))
1.77 kristaps 1216: return(1);
1217:
1.119 schwarze 1218: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.77 kristaps 1219: return(0);
1.119 schwarze 1220: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.77 kristaps 1221: return(0);
1222:
1.119 schwarze 1223: mdoc->flags &= ~MDOC_FREECOL;
1.1 kristaps 1224: return(1);
1225: }
1226:
1227:
1228: static int
1229: blk_part_imp(MACRO_PROT_ARGS)
1230: {
1.63 kristaps 1231: int la, nl;
1.53 kristaps 1232: enum mdoct ntok;
1.55 kristaps 1233: enum margserr ac;
1.1 kristaps 1234: char *p;
1.43 kristaps 1235: struct mdoc_node *blk; /* saved block context */
1236: struct mdoc_node *body; /* saved body context */
1237: struct mdoc_node *n;
1.1 kristaps 1238:
1.119 schwarze 1239: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1240:
1.43 kristaps 1241: /*
1242: * A macro that spans to the end of the line. This is generally
1243: * (but not necessarily) called as the first macro. The block
1244: * has a head as the immediate child, which is always empty,
1245: * followed by zero or more opening punctuation nodes, then the
1246: * body (which may be empty, depending on the macro), then zero
1247: * or more closing punctuation nodes.
1248: */
1.32 kristaps 1249:
1.119 schwarze 1250: if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, NULL))
1.32 kristaps 1251: return(0);
1.43 kristaps 1252:
1.119 schwarze 1253: blk = mdoc->last;
1.43 kristaps 1254:
1.119 schwarze 1255: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1256: return(0);
1.119 schwarze 1257: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1258: return(0);
1259:
1.43 kristaps 1260: /*
1261: * Open the body scope "on-demand", that is, after we've
1262: * processed all our the leading delimiters (open parenthesis,
1263: * etc.).
1264: */
1.1 kristaps 1265:
1.43 kristaps 1266: for (body = NULL; ; ) {
1.32 kristaps 1267: la = *pos;
1.119 schwarze 1268: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.43 kristaps 1269:
1.53 kristaps 1270: if (ARGS_ERROR == ac)
1.1 kristaps 1271: return(0);
1.53 kristaps 1272: if (ARGS_EOLN == ac)
1.43 kristaps 1273: break;
1.53 kristaps 1274: if (ARGS_PUNCT == ac)
1.1 kristaps 1275: break;
1276:
1.53 kristaps 1277: if (NULL == body && ARGS_QWORD != ac &&
1.105 kristaps 1278: DELIM_OPEN == mdoc_isdelim(p)) {
1.119 schwarze 1279: if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
1.1 kristaps 1280: return(0);
1281: continue;
1282: }
1283:
1.43 kristaps 1284: if (NULL == body) {
1.119 schwarze 1285: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.43 kristaps 1286: return(0);
1.119 schwarze 1287: body = mdoc->last;
1.43 kristaps 1288: }
1289:
1.54 kristaps 1290: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1291:
1292: if (MDOC_MAX == ntok) {
1.119 schwarze 1293: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.43 kristaps 1294: return(0);
1.53 kristaps 1295: continue;
1296: }
1.43 kristaps 1297:
1.119 schwarze 1298: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 1299: return(0);
1.53 kristaps 1300: break;
1.1 kristaps 1301: }
1302:
1.43 kristaps 1303: /* Clean-ups to leave in a consistent state. */
1304:
1.44 kristaps 1305: if (NULL == body) {
1.119 schwarze 1306: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.44 kristaps 1307: return(0);
1.119 schwarze 1308: body = mdoc->last;
1.64 kristaps 1309: }
1310:
1311: for (n = body->child; n && n->next; n = n->next)
1312: /* Do nothing. */ ;
1313:
1314: /*
1315: * End of sentence spacing: if the last node is a text node and
1316: * has a trailing period, then mark it as being end-of-sentence.
1317: */
1318:
1319: if (n && MDOC_TEXT == n->type && n->string)
1.93 schwarze 1320: if (mandoc_eos(n->string, strlen(n->string), 1))
1.64 kristaps 1321: n->flags |= MDOC_EOS;
1322:
1.109 kristaps 1323: /* Up-propagate the end-of-space flag. */
1.64 kristaps 1324:
1325: if (n && (MDOC_EOS & n->flags)) {
1326: body->flags |= MDOC_EOS;
1327: body->parent->flags |= MDOC_EOS;
1.44 kristaps 1328: }
1.43 kristaps 1329:
1.83 schwarze 1330: /*
1331: * If there is an open sub-block requiring explicit close-out,
1332: * postpone closing out the current block
1333: * until the rew_sub() call closing out the sub-block.
1334: */
1.119 schwarze 1335: for (n = mdoc->last; n && n != body && n != blk->parent;
1336: n = n->parent) {
1.83 schwarze 1337: if (MDOC_BLOCK == n->type &&
1338: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1339: ! (MDOC_VALID & n->flags)) {
1.119 schwarze 1340: make_pending(n, tok, mdoc, line, ppos);
1341: if ( ! mdoc_endbody_alloc(mdoc, line, ppos,
1.83 schwarze 1342: tok, body, ENDBODY_NOSPACE))
1343: return(0);
1344: return(1);
1345: }
1346: }
1347:
1.32 kristaps 1348: /*
1349: * If we can't rewind to our body, then our scope has already
1350: * been closed by another macro (like `Oc' closing `Op'). This
1351: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1352: * crufty use of `Op' breakage.
1.1 kristaps 1353: */
1.103 kristaps 1354: if (n != body)
1.119 schwarze 1355: mandoc_vmsg(MANDOCERR_SCOPENEST, mdoc->parse, line, ppos,
1.103 kristaps 1356: "%s broken", mdoc_macronames[tok]);
1.43 kristaps 1357:
1.119 schwarze 1358: if (n && ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.32 kristaps 1359: return(0);
1.1 kristaps 1360:
1.32 kristaps 1361: /* Standard appending of delimiters. */
1.1 kristaps 1362:
1.119 schwarze 1363: if (nl && ! append_delims(mdoc, line, pos, buf))
1.1 kristaps 1364: return(0);
1365:
1.32 kristaps 1366: /* Rewind scope, if applicable. */
1.1 kristaps 1367:
1.119 schwarze 1368: if (n && ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 1369: return(0);
1.117 schwarze 1370:
1371: /* Move trailing .Ns out of scope. */
1372:
1373: for (n = body->child; n && n->next; n = n->next)
1374: /* Do nothing. */ ;
1375: if (n && MDOC_Ns == n->tok)
1.119 schwarze 1376: mdoc_node_relink(mdoc, n);
1.1 kristaps 1377:
1378: return(1);
1379: }
1380:
1381:
1382: static int
1383: blk_part_exp(MACRO_PROT_ARGS)
1384: {
1.60 kristaps 1385: int la, nl;
1.55 kristaps 1386: enum margserr ac;
1.43 kristaps 1387: struct mdoc_node *head; /* keep track of head */
1388: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1389: char *p;
1.53 kristaps 1390: enum mdoct ntok;
1.1 kristaps 1391:
1.119 schwarze 1392: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1393:
1.43 kristaps 1394: /*
1395: * The opening of an explicit macro having zero or more leading
1396: * punctuation nodes; a head with optional single element (the
1397: * case of `Eo'); and a body that may be empty.
1398: */
1.32 kristaps 1399:
1.119 schwarze 1400: if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, NULL))
1.1 kristaps 1401: return(0);
1.32 kristaps 1402:
1.43 kristaps 1403: for (head = body = NULL; ; ) {
1.32 kristaps 1404: la = *pos;
1.119 schwarze 1405: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 1406:
1.53 kristaps 1407: if (ARGS_ERROR == ac)
1.1 kristaps 1408: return(0);
1.53 kristaps 1409: if (ARGS_PUNCT == ac)
1.1 kristaps 1410: break;
1.53 kristaps 1411: if (ARGS_EOLN == ac)
1.1 kristaps 1412: break;
1.43 kristaps 1413:
1414: /* Flush out leading punctuation. */
1415:
1.53 kristaps 1416: if (NULL == head && ARGS_QWORD != ac &&
1.105 kristaps 1417: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1418: assert(NULL == body);
1.119 schwarze 1419: if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
1.43 kristaps 1420: return(0);
1421: continue;
1422: }
1423:
1424: if (NULL == head) {
1425: assert(NULL == body);
1.119 schwarze 1426: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1427: return(0);
1.119 schwarze 1428: head = mdoc->last;
1.1 kristaps 1429: }
1430:
1.43 kristaps 1431: /*
1432: * `Eo' gobbles any data into the head, but most other
1433: * macros just immediately close out and begin the body.
1434: */
1435:
1436: if (NULL == body) {
1437: assert(head);
1438: /* No check whether it's a macro! */
1439: if (MDOC_Eo == tok)
1.119 schwarze 1440: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.43 kristaps 1441: return(0);
1442:
1.119 schwarze 1443: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1444: return(0);
1.119 schwarze 1445: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1446: return(0);
1.119 schwarze 1447: body = mdoc->last;
1.43 kristaps 1448:
1449: if (MDOC_Eo == tok)
1450: continue;
1.1 kristaps 1451: }
1.43 kristaps 1452:
1453: assert(NULL != head && NULL != body);
1454:
1.54 kristaps 1455: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1456:
1457: if (MDOC_MAX == ntok) {
1.119 schwarze 1458: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.43 kristaps 1459: return(0);
1.53 kristaps 1460: continue;
1.43 kristaps 1461: }
1462:
1.119 schwarze 1463: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 1464: return(0);
1.53 kristaps 1465: break;
1.1 kristaps 1466: }
1467:
1.43 kristaps 1468: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1469:
1.112 schwarze 1470: if (NULL == head)
1.119 schwarze 1471: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.43 kristaps 1472: return(0);
1473:
1474: if (NULL == body) {
1.119 schwarze 1475: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1476: return(0);
1.119 schwarze 1477: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1478: return(0);
1479: }
1480:
1.32 kristaps 1481: /* Standard appending of delimiters. */
1482:
1.60 kristaps 1483: if ( ! nl)
1.1 kristaps 1484: return(1);
1.119 schwarze 1485: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 1486: }
1487:
1488:
1.61 kristaps 1489: /* ARGSUSED */
1.1 kristaps 1490: static int
1491: in_line_argn(MACRO_PROT_ARGS)
1492: {
1.60 kristaps 1493: int la, flushed, j, maxargs, nl;
1.55 kristaps 1494: enum margserr ac;
1.56 kristaps 1495: enum margverr av;
1.53 kristaps 1496: struct mdoc_arg *arg;
1497: char *p;
1498: enum mdoct ntok;
1.1 kristaps 1499:
1.119 schwarze 1500: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1501:
1.46 kristaps 1502: /*
1503: * A line macro that has a fixed number of arguments (maxargs).
1504: * Only open the scope once the first non-leading-punctuation is
1505: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1506: * keep it open until the maximum number of arguments are
1507: * exhausted.
1508: */
1.1 kristaps 1509:
1510: switch (tok) {
1511: case (MDOC_Ap):
1512: /* FALLTHROUGH */
1513: case (MDOC_No):
1514: /* FALLTHROUGH */
1515: case (MDOC_Ns):
1516: /* FALLTHROUGH */
1517: case (MDOC_Ux):
1518: maxargs = 0;
1519: break;
1.101 kristaps 1520: case (MDOC_Bx):
1521: /* FALLTHROUGH */
1.42 kristaps 1522: case (MDOC_Xr):
1523: maxargs = 2;
1524: break;
1.1 kristaps 1525: default:
1526: maxargs = 1;
1527: break;
1528: }
1529:
1.46 kristaps 1530: for (arg = NULL; ; ) {
1.32 kristaps 1531: la = *pos;
1.119 schwarze 1532: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1533:
1.56 kristaps 1534: if (ARGV_WORD == av) {
1.32 kristaps 1535: *pos = la;
1.1 kristaps 1536: break;
1537: }
1538:
1.56 kristaps 1539: if (ARGV_EOLN == av)
1.1 kristaps 1540: break;
1.56 kristaps 1541: if (ARGV_ARG == av)
1.1 kristaps 1542: continue;
1543:
1544: mdoc_argv_free(arg);
1545: return(0);
1546: }
1547:
1.46 kristaps 1548: for (flushed = j = 0; ; ) {
1.32 kristaps 1549: la = *pos;
1.119 schwarze 1550: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 1551:
1.53 kristaps 1552: if (ARGS_ERROR == ac)
1.1 kristaps 1553: return(0);
1.53 kristaps 1554: if (ARGS_PUNCT == ac)
1.1 kristaps 1555: break;
1.53 kristaps 1556: if (ARGS_EOLN == ac)
1.1 kristaps 1557: break;
1558:
1.46 kristaps 1559: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.105 kristaps 1560: ARGS_QWORD != ac && 0 == j &&
1561: DELIM_OPEN == mdoc_isdelim(p)) {
1.119 schwarze 1562: if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
1.46 kristaps 1563: return(0);
1564: continue;
1565: } else if (0 == j)
1.119 schwarze 1566: if ( ! mdoc_elem_alloc(mdoc, line, la, tok, arg))
1.46 kristaps 1567: return(0);
1568:
1569: if (j == maxargs && ! flushed) {
1.119 schwarze 1570: if ( ! rew_elem(mdoc, tok))
1.46 kristaps 1571: return(0);
1572: flushed = 1;
1573: }
1574:
1.54 kristaps 1575: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1576:
1577: if (MDOC_MAX != ntok) {
1.119 schwarze 1578: if ( ! flushed && ! rew_elem(mdoc, tok))
1.1 kristaps 1579: return(0);
1580: flushed = 1;
1.119 schwarze 1581: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 1582: return(0);
1.46 kristaps 1583: j++;
1.1 kristaps 1584: break;
1585: }
1586:
1587: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1588: ARGS_QWORD != ac &&
1.67 schwarze 1589: ! flushed &&
1.105 kristaps 1590: DELIM_NONE != mdoc_isdelim(p)) {
1.119 schwarze 1591: if ( ! rew_elem(mdoc, tok))
1.1 kristaps 1592: return(0);
1593: flushed = 1;
1594: }
1.42 kristaps 1595:
1.119 schwarze 1596: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.1 kristaps 1597: return(0);
1.46 kristaps 1598: j++;
1.1 kristaps 1599: }
1600:
1.119 schwarze 1601: if (0 == j && ! mdoc_elem_alloc(mdoc, line, la, tok, arg))
1.46 kristaps 1602: return(0);
1603:
1604: /* Close out in a consistent state. */
1.32 kristaps 1605:
1.119 schwarze 1606: if ( ! flushed && ! rew_elem(mdoc, tok))
1.1 kristaps 1607: return(0);
1.60 kristaps 1608: if ( ! nl)
1.1 kristaps 1609: return(1);
1.119 schwarze 1610: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 1611: }
1612:
1613:
1614: static int
1615: in_line_eoln(MACRO_PROT_ARGS)
1616: {
1.56 kristaps 1617: int la;
1.55 kristaps 1618: enum margserr ac;
1.56 kristaps 1619: enum margverr av;
1.53 kristaps 1620: struct mdoc_arg *arg;
1621: char *p;
1622: enum mdoct ntok;
1.1 kristaps 1623:
1624: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1625:
1.90 schwarze 1626: if (tok == MDOC_Pp)
1.119 schwarze 1627: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.90 schwarze 1628:
1.32 kristaps 1629: /* Parse macro arguments. */
1.1 kristaps 1630:
1.32 kristaps 1631: for (arg = NULL; ; ) {
1.1 kristaps 1632: la = *pos;
1.119 schwarze 1633: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1634:
1.56 kristaps 1635: if (ARGV_WORD == av) {
1.1 kristaps 1636: *pos = la;
1637: break;
1638: }
1.56 kristaps 1639: if (ARGV_EOLN == av)
1.1 kristaps 1640: break;
1.56 kristaps 1641: if (ARGV_ARG == av)
1.1 kristaps 1642: continue;
1643:
1644: mdoc_argv_free(arg);
1645: return(0);
1646: }
1647:
1.32 kristaps 1648: /* Open element scope. */
1649:
1.119 schwarze 1650: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 1651: return(0);
1652:
1.32 kristaps 1653: /* Parse argument terms. */
1.1 kristaps 1654:
1655: for (;;) {
1656: la = *pos;
1.119 schwarze 1657: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 1658:
1.53 kristaps 1659: if (ARGS_ERROR == ac)
1.1 kristaps 1660: return(0);
1.53 kristaps 1661: if (ARGS_EOLN == ac)
1.1 kristaps 1662: break;
1663:
1.53 kristaps 1664: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1665:
1.53 kristaps 1666: if (MDOC_MAX == ntok) {
1.119 schwarze 1667: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.1 kristaps 1668: return(0);
1.53 kristaps 1669: continue;
1670: }
1.1 kristaps 1671:
1.119 schwarze 1672: if ( ! rew_elem(mdoc, tok))
1.1 kristaps 1673: return(0);
1.119 schwarze 1674: return(mdoc_macro(mdoc, ntok, line, la, pos, buf));
1.1 kristaps 1675: }
1676:
1.32 kristaps 1677: /* Close out (no delimiters). */
1678:
1.119 schwarze 1679: return(rew_elem(mdoc, tok));
1.1 kristaps 1680: }
1681:
1682:
1683: /* ARGSUSED */
1684: static int
1.41 kristaps 1685: ctx_synopsis(MACRO_PROT_ARGS)
1686: {
1.60 kristaps 1687: int nl;
1688:
1.119 schwarze 1689: nl = MDOC_NEWLINE & mdoc->flags;
1.41 kristaps 1690:
1691: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.119 schwarze 1692: if ( ! (MDOC_SYNOPSIS & mdoc->flags))
1693: return(in_line(mdoc, tok, line, ppos, pos, buf));
1.41 kristaps 1694:
1695: /* If we're a nested call, same place. */
1.60 kristaps 1696: if ( ! nl)
1.119 schwarze 1697: return(in_line(mdoc, tok, line, ppos, pos, buf));
1.41 kristaps 1698:
1699: /*
1700: * XXX: this will open a block scope; however, if later we end
1701: * up formatting the block scope, then child nodes will inherit
1702: * the formatting. Be careful.
1703: */
1.88 schwarze 1704: if (MDOC_Nm == tok)
1.119 schwarze 1705: return(blk_full(mdoc, tok, line, ppos, pos, buf));
1.88 schwarze 1706: assert(MDOC_Vt == tok);
1.119 schwarze 1707: return(blk_part_imp(mdoc, tok, line, ppos, pos, buf));
1.41 kristaps 1708: }
1709:
1710:
1711: /* ARGSUSED */
1712: static int
1.1 kristaps 1713: obsolete(MACRO_PROT_ARGS)
1714: {
1715:
1.119 schwarze 1716: mdoc_pmsg(mdoc, line, ppos, MANDOCERR_MACROOBS);
1.103 kristaps 1717: return(1);
1.1 kristaps 1718: }
1719:
1720:
1.24 kristaps 1721: /*
1722: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1723: * They're unusual because they're basically free-form text until a
1724: * macro is encountered.
1725: */
1.1 kristaps 1726: static int
1.119 schwarze 1727: phrase(struct mdoc *mdoc, int line, int ppos, char *buf)
1.1 kristaps 1728: {
1.53 kristaps 1729: int la, pos;
1.75 kristaps 1730: enum margserr ac;
1.53 kristaps 1731: enum mdoct ntok;
1732: char *p;
1.1 kristaps 1733:
1.24 kristaps 1734: for (pos = ppos; ; ) {
1735: la = pos;
1.1 kristaps 1736:
1.119 schwarze 1737: ac = mdoc_zargs(mdoc, line, &pos, buf, &p);
1.1 kristaps 1738:
1.75 kristaps 1739: if (ARGS_ERROR == ac)
1.24 kristaps 1740: return(0);
1.75 kristaps 1741: if (ARGS_EOLN == ac)
1.24 kristaps 1742: break;
1.1 kristaps 1743:
1.75 kristaps 1744: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1745:
1.53 kristaps 1746: if (MDOC_MAX == ntok) {
1.119 schwarze 1747: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.1 kristaps 1748: return(0);
1.53 kristaps 1749: continue;
1750: }
1.1 kristaps 1751:
1.119 schwarze 1752: if ( ! mdoc_macro(mdoc, ntok, line, la, &pos, buf))
1.1 kristaps 1753: return(0);
1.119 schwarze 1754: return(append_delims(mdoc, line, &pos, buf));
1.1 kristaps 1755: }
1756:
1757: return(1);
1758: }
1.24 kristaps 1759:
1760:
1.79 kristaps 1761: /* ARGSUSED */
1.75 kristaps 1762: static int
1763: phrase_ta(MACRO_PROT_ARGS)
1764: {
1.121 schwarze 1765: struct mdoc_node *n;
1.75 kristaps 1766: int la;
1767: enum mdoct ntok;
1768: enum margserr ac;
1769: char *p;
1770:
1.121 schwarze 1771: /* Make sure we are in a column list or ignore this macro. */
1772: n = mdoc->last;
1773: while (NULL != n && MDOC_Bl != n->tok)
1774: n = n->parent;
1775: if (NULL == n || LIST_column != n->norm->Bl.type) {
1776: mdoc_pmsg(mdoc, line, ppos, MANDOCERR_STRAYTA);
1777: return(1);
1778: }
1.75 kristaps 1779:
1.121 schwarze 1780: /* Advance to the next column. */
1.119 schwarze 1781: if ( ! rew_sub(MDOC_BODY, mdoc, MDOC_It, line, ppos))
1.75 kristaps 1782: return(0);
1.119 schwarze 1783: if ( ! mdoc_body_alloc(mdoc, line, ppos, MDOC_It))
1.75 kristaps 1784: return(0);
1785:
1786: for (;;) {
1787: la = *pos;
1.119 schwarze 1788: ac = mdoc_zargs(mdoc, line, pos, buf, &p);
1.75 kristaps 1789:
1790: if (ARGS_ERROR == ac)
1791: return(0);
1792: if (ARGS_EOLN == ac)
1793: break;
1794:
1795: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1796:
1797: if (MDOC_MAX == ntok) {
1.119 schwarze 1798: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.75 kristaps 1799: return(0);
1800: continue;
1801: }
1802:
1.119 schwarze 1803: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.75 kristaps 1804: return(0);
1.119 schwarze 1805: return(append_delims(mdoc, line, pos, buf));
1.75 kristaps 1806: }
1807:
1808: return(1);
1809: }
CVSweb
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to mdoc_macro.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [cvsweb.bsd.lv] / mandoc