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