Annotation of mandoc/mdoc_macro.c, Revision 1.120
1.120 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.119 2012/11/17 00:26:33 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: }
1.119 schwarze 795: if ( ! mdoc_macro(mdoc, ntok, line, lastarg, pos, buf))
1.1 kristaps 796: return(0);
1.54 kristaps 797: break;
1.1 kristaps 798: }
799:
1.119 schwarze 800: if ( ! flushed && ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 801: return(0);
802:
1.60 kristaps 803: if ( ! nl)
1.1 kristaps 804: return(1);
1.119 schwarze 805: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 806: }
807:
808:
809: static int
810: in_line(MACRO_PROT_ARGS)
811: {
1.70 kristaps 812: int la, scope, cnt, nc, nl;
1.56 kristaps 813: enum margverr av;
1.53 kristaps 814: enum mdoct ntok;
1.55 kristaps 815: enum margserr ac;
1.67 schwarze 816: enum mdelim d;
1.53 kristaps 817: struct mdoc_arg *arg;
818: char *p;
1.1 kristaps 819:
1.119 schwarze 820: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 821:
1.4 kristaps 822: /*
823: * Whether we allow ignored elements (those without content,
824: * usually because of reserved words) to squeak by.
825: */
1.45 kristaps 826:
1.4 kristaps 827: switch (tok) {
1.26 kristaps 828: case (MDOC_An):
829: /* FALLTHROUGH */
830: case (MDOC_Ar):
1.4 kristaps 831: /* FALLTHROUGH */
832: case (MDOC_Fl):
833: /* FALLTHROUGH */
1.96 kristaps 834: case (MDOC_Mt):
1.12 kristaps 835: /* FALLTHROUGH */
1.26 kristaps 836: case (MDOC_Nm):
837: /* FALLTHROUGH */
1.25 kristaps 838: case (MDOC_Pa):
1.4 kristaps 839: nc = 1;
840: break;
841: default:
842: nc = 0;
843: break;
844: }
845:
1.27 kristaps 846: for (arg = NULL;; ) {
1.1 kristaps 847: la = *pos;
1.119 schwarze 848: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 849:
1.56 kristaps 850: if (ARGV_WORD == av) {
1.1 kristaps 851: *pos = la;
852: break;
853: }
1.56 kristaps 854: if (ARGV_EOLN == av)
1.1 kristaps 855: break;
1.56 kristaps 856: if (ARGV_ARG == av)
1.1 kristaps 857: continue;
858:
859: mdoc_argv_free(arg);
860: return(0);
861: }
862:
1.70 kristaps 863: for (cnt = scope = 0;; ) {
1.1 kristaps 864: la = *pos;
1.119 schwarze 865: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 866:
1.53 kristaps 867: if (ARGS_ERROR == ac)
1.1 kristaps 868: return(0);
1.53 kristaps 869: if (ARGS_EOLN == ac)
1.1 kristaps 870: break;
1.53 kristaps 871: if (ARGS_PUNCT == ac)
1.1 kristaps 872: break;
873:
1.53 kristaps 874: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 875:
1.4 kristaps 876: /*
877: * In this case, we've located a submacro and must
878: * execute it. Close out scope, if open. If no
879: * elements have been generated, either create one (nc)
880: * or raise a warning.
881: */
1.1 kristaps 882:
1.53 kristaps 883: if (MDOC_MAX != ntok) {
1.119 schwarze 884: if (scope && ! rew_elem(mdoc, tok))
1.1 kristaps 885: return(0);
1.4 kristaps 886: if (nc && 0 == cnt) {
1.119 schwarze 887: if ( ! mdoc_elem_alloc(mdoc, line,
888: ppos, tok, arg))
1.3 kristaps 889: return(0);
1.119 schwarze 890: if ( ! rew_last(mdoc, mdoc->last))
1.12 kristaps 891: return(0);
1.7 kristaps 892: } else if ( ! nc && 0 == cnt) {
893: mdoc_argv_free(arg);
1.119 schwarze 894: mdoc_pmsg(mdoc, line, ppos,
895: MANDOCERR_MACROEMPTY);
1.7 kristaps 896: }
1.103 kristaps 897:
1.119 schwarze 898: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 899: return(0);
1.60 kristaps 900: if ( ! nl)
1.1 kristaps 901: return(1);
1.119 schwarze 902: return(append_delims(mdoc, line, pos, buf));
1.29 kristaps 903: }
1.1 kristaps 904:
1.4 kristaps 905: /*
906: * Non-quote-enclosed punctuation. Set up our scope, if
907: * a word; rewind the scope, if a delimiter; then append
908: * the word.
909: */
1.1 kristaps 910:
1.105 kristaps 911: d = ARGS_QWORD == ac ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 912:
1.70 kristaps 913: if (DELIM_NONE != d) {
914: /*
915: * If we encounter closing punctuation, no word
916: * has been omitted, no scope is open, and we're
917: * allowed to have an empty element, then start
918: * a new scope. `Ar', `Fl', and `Li', only do
919: * this once per invocation. There may be more
920: * of these (all of them?).
921: */
922: if (0 == cnt && (nc || MDOC_Li == tok) &&
923: DELIM_CLOSE == d && ! scope) {
1.119 schwarze 924: if ( ! mdoc_elem_alloc(mdoc, line,
925: ppos, tok, arg))
1.70 kristaps 926: return(0);
927: if (MDOC_Ar == tok || MDOC_Li == tok ||
928: MDOC_Fl == tok)
929: cnt++;
930: scope = 1;
931: }
932: /*
933: * Close out our scope, if one is open, before
934: * any punctuation.
935: */
1.119 schwarze 936: if (scope && ! rew_elem(mdoc, tok))
1.1 kristaps 937: return(0);
1.70 kristaps 938: scope = 0;
939: } else if ( ! scope) {
1.119 schwarze 940: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 941: return(0);
1.70 kristaps 942: scope = 1;
1.1 kristaps 943: }
944:
1.67 schwarze 945: if (DELIM_NONE == d)
1.3 kristaps 946: cnt++;
1.105 kristaps 947:
1.119 schwarze 948: if ( ! dword(mdoc, line, la, p, d))
1.1 kristaps 949: return(0);
1.39 kristaps 950:
951: /*
952: * `Fl' macros have their scope re-opened with each new
953: * word so that the `-' can be added to each one without
954: * having to parse out spaces.
955: */
1.70 kristaps 956: if (scope && MDOC_Fl == tok) {
1.119 schwarze 957: if ( ! rew_elem(mdoc, tok))
1.39 kristaps 958: return(0);
1.70 kristaps 959: scope = 0;
1.39 kristaps 960: }
1.1 kristaps 961: }
962:
1.119 schwarze 963: if (scope && ! rew_elem(mdoc, tok))
1.1 kristaps 964: return(0);
1.4 kristaps 965:
966: /*
967: * If no elements have been collected and we're allowed to have
968: * empties (nc), open a scope and close it out. Otherwise,
969: * raise a warning.
970: */
1.45 kristaps 971:
1.4 kristaps 972: if (nc && 0 == cnt) {
1.119 schwarze 973: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.3 kristaps 974: return(0);
1.119 schwarze 975: if ( ! rew_last(mdoc, mdoc->last))
1.12 kristaps 976: return(0);
1.7 kristaps 977: } else if ( ! nc && 0 == cnt) {
978: mdoc_argv_free(arg);
1.119 schwarze 979: mdoc_pmsg(mdoc, line, ppos, MANDOCERR_MACROEMPTY);
1.7 kristaps 980: }
1.4 kristaps 981:
1.60 kristaps 982: if ( ! nl)
1.1 kristaps 983: return(1);
1.119 schwarze 984: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 985: }
986:
987:
988: static int
989: blk_full(MACRO_PROT_ARGS)
990: {
1.114 kristaps 991: int la, nl, nparsed;
1.1 kristaps 992: struct mdoc_arg *arg;
1.45 kristaps 993: struct mdoc_node *head; /* save of head macro */
1.49 kristaps 994: struct mdoc_node *body; /* save of body macro */
1.47 kristaps 995: struct mdoc_node *n;
1.74 kristaps 996: enum mdoc_type mtt;
1.53 kristaps 997: enum mdoct ntok;
1.59 kristaps 998: enum margserr ac, lac;
1.56 kristaps 999: enum margverr av;
1.1 kristaps 1000: char *p;
1001:
1.119 schwarze 1002: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1003:
1.45 kristaps 1004: /* Close out prior implicit scope. */
1.19 kristaps 1005:
1.1 kristaps 1006: if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) {
1.119 schwarze 1007: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.1 kristaps 1008: return(0);
1.119 schwarze 1009: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 1010: return(0);
1011: }
1012:
1.45 kristaps 1013: /*
1.109 kristaps 1014: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1015: * macro openings. Implicit ones first close out prior scope
1016: * (seen above). Delay opening the head until necessary to
1017: * allow leading punctuation to print. Special consideration
1018: * for `It -column', which has phrase-part syntax instead of
1019: * regular child nodes.
1020: */
1021:
1.1 kristaps 1022: for (arg = NULL;; ) {
1.45 kristaps 1023: la = *pos;
1.119 schwarze 1024: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1025:
1.56 kristaps 1026: if (ARGV_WORD == av) {
1.45 kristaps 1027: *pos = la;
1.1 kristaps 1028: break;
1029: }
1030:
1.56 kristaps 1031: if (ARGV_EOLN == av)
1.1 kristaps 1032: break;
1.56 kristaps 1033: if (ARGV_ARG == av)
1.1 kristaps 1034: continue;
1035:
1036: mdoc_argv_free(arg);
1037: return(0);
1038: }
1039:
1.119 schwarze 1040: if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 1041: return(0);
1042:
1.49 kristaps 1043: head = body = NULL;
1.115 schwarze 1044:
1045: /*
1046: * Exception: Heads of `It' macros in `-diag' lists are not
1047: * parsed, even though `It' macros in general are parsed.
1048: */
1049: nparsed = MDOC_It == tok &&
1.119 schwarze 1050: MDOC_Bl == mdoc->last->parent->tok &&
1051: LIST_diag == mdoc->last->parent->norm->Bl.type;
1.1 kristaps 1052:
1.45 kristaps 1053: /*
1054: * The `Nd' macro has all arguments in its body: it's a hybrid
1055: * of block partial-explicit and full-implicit. Stupid.
1056: */
1.19 kristaps 1057:
1.45 kristaps 1058: if (MDOC_Nd == tok) {
1.119 schwarze 1059: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.45 kristaps 1060: return(0);
1.119 schwarze 1061: head = mdoc->last;
1062: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.19 kristaps 1063: return(0);
1.119 schwarze 1064: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.19 kristaps 1065: return(0);
1.119 schwarze 1066: body = mdoc->last;
1.19 kristaps 1067: }
1068:
1.59 kristaps 1069: ac = ARGS_ERROR;
1070:
1.62 kristaps 1071: for ( ; ; ) {
1.45 kristaps 1072: la = *pos;
1.75 kristaps 1073: /* Initialise last-phrase-type with ARGS_PEND. */
1074: lac = ARGS_ERROR == ac ? ARGS_PEND : ac;
1.119 schwarze 1075: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.89 schwarze 1076:
1077: if (ARGS_PUNCT == ac)
1078: break;
1.1 kristaps 1079:
1.53 kristaps 1080: if (ARGS_ERROR == ac)
1.1 kristaps 1081: return(0);
1.75 kristaps 1082:
1083: if (ARGS_EOLN == ac) {
1084: if (ARGS_PPHRASE != lac && ARGS_PHRASE != lac)
1085: break;
1086: /*
1087: * This is necessary: if the last token on a
1088: * line is a `Ta' or tab, then we'll get
1089: * ARGS_EOLN, so we must be smart enough to
1090: * reopen our scope if the last parse was a
1091: * phrase or partial phrase.
1092: */
1.119 schwarze 1093: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.75 kristaps 1094: return(0);
1.119 schwarze 1095: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.75 kristaps 1096: return(0);
1.119 schwarze 1097: body = mdoc->last;
1.1 kristaps 1098: break;
1.75 kristaps 1099: }
1.45 kristaps 1100:
1.73 kristaps 1101: /*
1102: * Emit leading punctuation (i.e., punctuation before
1103: * the MDOC_HEAD) for non-phrase types.
1104: */
1.45 kristaps 1105:
1.59 kristaps 1106: if (NULL == head &&
1.71 kristaps 1107: ARGS_PEND != ac &&
1.59 kristaps 1108: ARGS_PHRASE != ac &&
1.57 kristaps 1109: ARGS_PPHRASE != ac &&
1.53 kristaps 1110: ARGS_QWORD != ac &&
1.105 kristaps 1111: DELIM_OPEN == mdoc_isdelim(p)) {
1.119 schwarze 1112: if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
1.45 kristaps 1113: return(0);
1114: continue;
1115: }
1116:
1.74 kristaps 1117: /* Open a head if one hasn't been opened. */
1.45 kristaps 1118:
1.74 kristaps 1119: if (NULL == head) {
1.119 schwarze 1120: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.45 kristaps 1121: return(0);
1.119 schwarze 1122: head = mdoc->last;
1.45 kristaps 1123: }
1124:
1.72 kristaps 1125: if (ARGS_PHRASE == ac ||
1126: ARGS_PEND == ac ||
1127: ARGS_PPHRASE == ac) {
1.73 kristaps 1128: /*
1.74 kristaps 1129: * If we haven't opened a body yet, rewind the
1130: * head; if we have, rewind that instead.
1131: */
1132:
1133: mtt = body ? MDOC_BODY : MDOC_HEAD;
1.119 schwarze 1134: if ( ! rew_sub(mtt, mdoc, tok, line, ppos))
1.74 kristaps 1135: return(0);
1136:
1137: /* Then allocate our body context. */
1138:
1.119 schwarze 1139: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.74 kristaps 1140: return(0);
1.119 schwarze 1141: body = mdoc->last;
1.74 kristaps 1142:
1143: /*
1.73 kristaps 1144: * Process phrases: set whether we're in a
1145: * partial-phrase (this effects line handling)
1146: * then call down into the phrase parser.
1147: */
1.74 kristaps 1148:
1.65 kristaps 1149: if (ARGS_PPHRASE == ac)
1.119 schwarze 1150: mdoc->flags |= MDOC_PPHRASE;
1.71 kristaps 1151: if (ARGS_PEND == ac && ARGS_PPHRASE == lac)
1.119 schwarze 1152: mdoc->flags |= MDOC_PPHRASE;
1.71 kristaps 1153:
1.119 schwarze 1154: if ( ! phrase(mdoc, line, la, buf))
1.1 kristaps 1155: return(0);
1.71 kristaps 1156:
1.119 schwarze 1157: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1158: continue;
1159: }
1160:
1.114 kristaps 1161: ntok = nparsed || ARGS_QWORD == ac ?
1162: MDOC_MAX : lookup(tok, p);
1.54 kristaps 1163:
1164: if (MDOC_MAX == ntok) {
1.119 schwarze 1165: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.1 kristaps 1166: return(0);
1.53 kristaps 1167: continue;
1.45 kristaps 1168: }
1.53 kristaps 1169:
1.119 schwarze 1170: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.45 kristaps 1171: return(0);
1.53 kristaps 1172: break;
1.45 kristaps 1173: }
1.1 kristaps 1174:
1.45 kristaps 1175: if (NULL == head) {
1.119 schwarze 1176: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1177: return(0);
1.119 schwarze 1178: head = mdoc->last;
1.1 kristaps 1179: }
1180:
1.119 schwarze 1181: if (nl && ! append_delims(mdoc, line, pos, buf))
1.1 kristaps 1182: return(0);
1.19 kristaps 1183:
1.49 kristaps 1184: /* If we've already opened our body, exit now. */
1.45 kristaps 1185:
1.49 kristaps 1186: if (NULL != body)
1.77 kristaps 1187: goto out;
1.19 kristaps 1188:
1.47 kristaps 1189: /*
1.49 kristaps 1190: * If there is an open (i.e., unvalidated) sub-block requiring
1191: * explicit close-out, postpone switching the current block from
1192: * head to body until the rew_sub() call closing out that
1193: * sub-block.
1.47 kristaps 1194: */
1.119 schwarze 1195: for (n = mdoc->last; n && n != head; n = n->parent) {
1.49 kristaps 1196: if (MDOC_BLOCK == n->type &&
1197: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1198: ! (MDOC_VALID & n->flags)) {
1.47 kristaps 1199: n->pending = head;
1200: return(1);
1201: }
1202: }
1203:
1.45 kristaps 1204: /* Close out scopes to remain in a consistent state. */
1205:
1.119 schwarze 1206: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1207: return(0);
1.119 schwarze 1208: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1209: return(0);
1210:
1.77 kristaps 1211: out:
1.119 schwarze 1212: if ( ! (MDOC_FREECOL & mdoc->flags))
1.77 kristaps 1213: return(1);
1214:
1.119 schwarze 1215: if ( ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.77 kristaps 1216: return(0);
1.119 schwarze 1217: if ( ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.77 kristaps 1218: return(0);
1219:
1.119 schwarze 1220: mdoc->flags &= ~MDOC_FREECOL;
1.1 kristaps 1221: return(1);
1222: }
1223:
1224:
1225: static int
1226: blk_part_imp(MACRO_PROT_ARGS)
1227: {
1.63 kristaps 1228: int la, nl;
1.53 kristaps 1229: enum mdoct ntok;
1.55 kristaps 1230: enum margserr ac;
1.1 kristaps 1231: char *p;
1.43 kristaps 1232: struct mdoc_node *blk; /* saved block context */
1233: struct mdoc_node *body; /* saved body context */
1234: struct mdoc_node *n;
1.1 kristaps 1235:
1.119 schwarze 1236: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1237:
1.43 kristaps 1238: /*
1239: * A macro that spans to the end of the line. This is generally
1240: * (but not necessarily) called as the first macro. The block
1241: * has a head as the immediate child, which is always empty,
1242: * followed by zero or more opening punctuation nodes, then the
1243: * body (which may be empty, depending on the macro), then zero
1244: * or more closing punctuation nodes.
1245: */
1.32 kristaps 1246:
1.119 schwarze 1247: if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, NULL))
1.32 kristaps 1248: return(0);
1.43 kristaps 1249:
1.119 schwarze 1250: blk = mdoc->last;
1.43 kristaps 1251:
1.119 schwarze 1252: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1253: return(0);
1.119 schwarze 1254: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1255: return(0);
1256:
1.43 kristaps 1257: /*
1258: * Open the body scope "on-demand", that is, after we've
1259: * processed all our the leading delimiters (open parenthesis,
1260: * etc.).
1261: */
1.1 kristaps 1262:
1.43 kristaps 1263: for (body = NULL; ; ) {
1.32 kristaps 1264: la = *pos;
1.119 schwarze 1265: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.43 kristaps 1266:
1.53 kristaps 1267: if (ARGS_ERROR == ac)
1.1 kristaps 1268: return(0);
1.53 kristaps 1269: if (ARGS_EOLN == ac)
1.43 kristaps 1270: break;
1.53 kristaps 1271: if (ARGS_PUNCT == ac)
1.1 kristaps 1272: break;
1273:
1.53 kristaps 1274: if (NULL == body && ARGS_QWORD != ac &&
1.105 kristaps 1275: DELIM_OPEN == mdoc_isdelim(p)) {
1.119 schwarze 1276: if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
1.1 kristaps 1277: return(0);
1278: continue;
1279: }
1280:
1.43 kristaps 1281: if (NULL == body) {
1.119 schwarze 1282: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.43 kristaps 1283: return(0);
1.119 schwarze 1284: body = mdoc->last;
1.43 kristaps 1285: }
1286:
1.54 kristaps 1287: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1288:
1289: if (MDOC_MAX == ntok) {
1.119 schwarze 1290: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.43 kristaps 1291: return(0);
1.53 kristaps 1292: continue;
1293: }
1.43 kristaps 1294:
1.119 schwarze 1295: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 1296: return(0);
1.53 kristaps 1297: break;
1.1 kristaps 1298: }
1299:
1.43 kristaps 1300: /* Clean-ups to leave in a consistent state. */
1301:
1.44 kristaps 1302: if (NULL == body) {
1.119 schwarze 1303: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.44 kristaps 1304: return(0);
1.119 schwarze 1305: body = mdoc->last;
1.64 kristaps 1306: }
1307:
1308: for (n = body->child; n && n->next; n = n->next)
1309: /* Do nothing. */ ;
1310:
1311: /*
1312: * End of sentence spacing: if the last node is a text node and
1313: * has a trailing period, then mark it as being end-of-sentence.
1314: */
1315:
1316: if (n && MDOC_TEXT == n->type && n->string)
1.93 schwarze 1317: if (mandoc_eos(n->string, strlen(n->string), 1))
1.64 kristaps 1318: n->flags |= MDOC_EOS;
1319:
1.109 kristaps 1320: /* Up-propagate the end-of-space flag. */
1.64 kristaps 1321:
1322: if (n && (MDOC_EOS & n->flags)) {
1323: body->flags |= MDOC_EOS;
1324: body->parent->flags |= MDOC_EOS;
1.44 kristaps 1325: }
1.43 kristaps 1326:
1.83 schwarze 1327: /*
1328: * If there is an open sub-block requiring explicit close-out,
1329: * postpone closing out the current block
1330: * until the rew_sub() call closing out the sub-block.
1331: */
1.119 schwarze 1332: for (n = mdoc->last; n && n != body && n != blk->parent;
1333: n = n->parent) {
1.83 schwarze 1334: if (MDOC_BLOCK == n->type &&
1335: MDOC_EXPLICIT & mdoc_macros[n->tok].flags &&
1336: ! (MDOC_VALID & n->flags)) {
1.119 schwarze 1337: make_pending(n, tok, mdoc, line, ppos);
1338: if ( ! mdoc_endbody_alloc(mdoc, line, ppos,
1.83 schwarze 1339: tok, body, ENDBODY_NOSPACE))
1340: return(0);
1341: return(1);
1342: }
1343: }
1344:
1.32 kristaps 1345: /*
1346: * If we can't rewind to our body, then our scope has already
1347: * been closed by another macro (like `Oc' closing `Op'). This
1348: * is ugly behaviour nodding its head to OpenBSD's overwhelming
1.47 kristaps 1349: * crufty use of `Op' breakage.
1.1 kristaps 1350: */
1.103 kristaps 1351: if (n != body)
1.119 schwarze 1352: mandoc_vmsg(MANDOCERR_SCOPENEST, mdoc->parse, line, ppos,
1.103 kristaps 1353: "%s broken", mdoc_macronames[tok]);
1.43 kristaps 1354:
1.119 schwarze 1355: if (n && ! rew_sub(MDOC_BODY, mdoc, tok, line, ppos))
1.32 kristaps 1356: return(0);
1.1 kristaps 1357:
1.32 kristaps 1358: /* Standard appending of delimiters. */
1.1 kristaps 1359:
1.119 schwarze 1360: if (nl && ! append_delims(mdoc, line, pos, buf))
1.1 kristaps 1361: return(0);
1362:
1.32 kristaps 1363: /* Rewind scope, if applicable. */
1.1 kristaps 1364:
1.119 schwarze 1365: if (n && ! rew_sub(MDOC_BLOCK, mdoc, tok, line, ppos))
1.1 kristaps 1366: return(0);
1.117 schwarze 1367:
1368: /* Move trailing .Ns out of scope. */
1369:
1370: for (n = body->child; n && n->next; n = n->next)
1371: /* Do nothing. */ ;
1372: if (n && MDOC_Ns == n->tok)
1.119 schwarze 1373: mdoc_node_relink(mdoc, n);
1.1 kristaps 1374:
1375: return(1);
1376: }
1377:
1378:
1379: static int
1380: blk_part_exp(MACRO_PROT_ARGS)
1381: {
1.60 kristaps 1382: int la, nl;
1.55 kristaps 1383: enum margserr ac;
1.43 kristaps 1384: struct mdoc_node *head; /* keep track of head */
1385: struct mdoc_node *body; /* keep track of body */
1.1 kristaps 1386: char *p;
1.53 kristaps 1387: enum mdoct ntok;
1.1 kristaps 1388:
1.119 schwarze 1389: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1390:
1.43 kristaps 1391: /*
1392: * The opening of an explicit macro having zero or more leading
1393: * punctuation nodes; a head with optional single element (the
1394: * case of `Eo'); and a body that may be empty.
1395: */
1.32 kristaps 1396:
1.119 schwarze 1397: if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, NULL))
1.1 kristaps 1398: return(0);
1.32 kristaps 1399:
1.43 kristaps 1400: for (head = body = NULL; ; ) {
1.32 kristaps 1401: la = *pos;
1.119 schwarze 1402: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 1403:
1.53 kristaps 1404: if (ARGS_ERROR == ac)
1.1 kristaps 1405: return(0);
1.53 kristaps 1406: if (ARGS_PUNCT == ac)
1.1 kristaps 1407: break;
1.53 kristaps 1408: if (ARGS_EOLN == ac)
1.1 kristaps 1409: break;
1.43 kristaps 1410:
1411: /* Flush out leading punctuation. */
1412:
1.53 kristaps 1413: if (NULL == head && ARGS_QWORD != ac &&
1.105 kristaps 1414: DELIM_OPEN == mdoc_isdelim(p)) {
1.43 kristaps 1415: assert(NULL == body);
1.119 schwarze 1416: if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
1.43 kristaps 1417: return(0);
1418: continue;
1419: }
1420:
1421: if (NULL == head) {
1422: assert(NULL == body);
1.119 schwarze 1423: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1424: return(0);
1.119 schwarze 1425: head = mdoc->last;
1.1 kristaps 1426: }
1427:
1.43 kristaps 1428: /*
1429: * `Eo' gobbles any data into the head, but most other
1430: * macros just immediately close out and begin the body.
1431: */
1432:
1433: if (NULL == body) {
1434: assert(head);
1435: /* No check whether it's a macro! */
1436: if (MDOC_Eo == tok)
1.119 schwarze 1437: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.43 kristaps 1438: return(0);
1439:
1.119 schwarze 1440: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1441: return(0);
1.119 schwarze 1442: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1443: return(0);
1.119 schwarze 1444: body = mdoc->last;
1.43 kristaps 1445:
1446: if (MDOC_Eo == tok)
1447: continue;
1.1 kristaps 1448: }
1.43 kristaps 1449:
1450: assert(NULL != head && NULL != body);
1451:
1.54 kristaps 1452: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1453:
1454: if (MDOC_MAX == ntok) {
1.119 schwarze 1455: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.43 kristaps 1456: return(0);
1.53 kristaps 1457: continue;
1.43 kristaps 1458: }
1459:
1.119 schwarze 1460: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 1461: return(0);
1.53 kristaps 1462: break;
1.1 kristaps 1463: }
1464:
1.43 kristaps 1465: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1466:
1.112 schwarze 1467: if (NULL == head)
1.119 schwarze 1468: if ( ! mdoc_head_alloc(mdoc, line, ppos, tok))
1.43 kristaps 1469: return(0);
1470:
1471: if (NULL == body) {
1.119 schwarze 1472: if ( ! rew_sub(MDOC_HEAD, mdoc, tok, line, ppos))
1.1 kristaps 1473: return(0);
1.119 schwarze 1474: if ( ! mdoc_body_alloc(mdoc, line, ppos, tok))
1.1 kristaps 1475: return(0);
1476: }
1477:
1.32 kristaps 1478: /* Standard appending of delimiters. */
1479:
1.60 kristaps 1480: if ( ! nl)
1.1 kristaps 1481: return(1);
1.119 schwarze 1482: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 1483: }
1484:
1485:
1.61 kristaps 1486: /* ARGSUSED */
1.1 kristaps 1487: static int
1488: in_line_argn(MACRO_PROT_ARGS)
1489: {
1.60 kristaps 1490: int la, flushed, j, maxargs, nl;
1.55 kristaps 1491: enum margserr ac;
1.56 kristaps 1492: enum margverr av;
1.53 kristaps 1493: struct mdoc_arg *arg;
1494: char *p;
1495: enum mdoct ntok;
1.1 kristaps 1496:
1.119 schwarze 1497: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1498:
1.46 kristaps 1499: /*
1500: * A line macro that has a fixed number of arguments (maxargs).
1501: * Only open the scope once the first non-leading-punctuation is
1502: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1503: * keep it open until the maximum number of arguments are
1504: * exhausted.
1505: */
1.1 kristaps 1506:
1507: switch (tok) {
1508: case (MDOC_Ap):
1509: /* FALLTHROUGH */
1510: case (MDOC_No):
1511: /* FALLTHROUGH */
1512: case (MDOC_Ns):
1513: /* FALLTHROUGH */
1514: case (MDOC_Ux):
1515: maxargs = 0;
1516: break;
1.101 kristaps 1517: case (MDOC_Bx):
1518: /* FALLTHROUGH */
1.42 kristaps 1519: case (MDOC_Xr):
1520: maxargs = 2;
1521: break;
1.1 kristaps 1522: default:
1523: maxargs = 1;
1524: break;
1525: }
1526:
1.46 kristaps 1527: for (arg = NULL; ; ) {
1.32 kristaps 1528: la = *pos;
1.119 schwarze 1529: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1530:
1.56 kristaps 1531: if (ARGV_WORD == av) {
1.32 kristaps 1532: *pos = la;
1.1 kristaps 1533: break;
1534: }
1535:
1.56 kristaps 1536: if (ARGV_EOLN == av)
1.1 kristaps 1537: break;
1.56 kristaps 1538: if (ARGV_ARG == av)
1.1 kristaps 1539: continue;
1540:
1541: mdoc_argv_free(arg);
1542: return(0);
1543: }
1544:
1.46 kristaps 1545: for (flushed = j = 0; ; ) {
1.32 kristaps 1546: la = *pos;
1.119 schwarze 1547: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 1548:
1.53 kristaps 1549: if (ARGS_ERROR == ac)
1.1 kristaps 1550: return(0);
1.53 kristaps 1551: if (ARGS_PUNCT == ac)
1.1 kristaps 1552: break;
1.53 kristaps 1553: if (ARGS_EOLN == ac)
1.1 kristaps 1554: break;
1555:
1.46 kristaps 1556: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.105 kristaps 1557: ARGS_QWORD != ac && 0 == j &&
1558: DELIM_OPEN == mdoc_isdelim(p)) {
1.119 schwarze 1559: if ( ! dword(mdoc, line, la, p, DELIM_OPEN))
1.46 kristaps 1560: return(0);
1561: continue;
1562: } else if (0 == j)
1.119 schwarze 1563: if ( ! mdoc_elem_alloc(mdoc, line, la, tok, arg))
1.46 kristaps 1564: return(0);
1565:
1566: if (j == maxargs && ! flushed) {
1.119 schwarze 1567: if ( ! rew_elem(mdoc, tok))
1.46 kristaps 1568: return(0);
1569: flushed = 1;
1570: }
1571:
1.54 kristaps 1572: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1573:
1574: if (MDOC_MAX != ntok) {
1.119 schwarze 1575: if ( ! flushed && ! rew_elem(mdoc, tok))
1.1 kristaps 1576: return(0);
1577: flushed = 1;
1.119 schwarze 1578: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.1 kristaps 1579: return(0);
1.46 kristaps 1580: j++;
1.1 kristaps 1581: break;
1582: }
1583:
1584: if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) &&
1.53 kristaps 1585: ARGS_QWORD != ac &&
1.67 schwarze 1586: ! flushed &&
1.105 kristaps 1587: DELIM_NONE != mdoc_isdelim(p)) {
1.119 schwarze 1588: if ( ! rew_elem(mdoc, tok))
1.1 kristaps 1589: return(0);
1590: flushed = 1;
1591: }
1.42 kristaps 1592:
1.119 schwarze 1593: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.1 kristaps 1594: return(0);
1.46 kristaps 1595: j++;
1.1 kristaps 1596: }
1597:
1.119 schwarze 1598: if (0 == j && ! mdoc_elem_alloc(mdoc, line, la, tok, arg))
1.46 kristaps 1599: return(0);
1600:
1601: /* Close out in a consistent state. */
1.32 kristaps 1602:
1.119 schwarze 1603: if ( ! flushed && ! rew_elem(mdoc, tok))
1.1 kristaps 1604: return(0);
1.60 kristaps 1605: if ( ! nl)
1.1 kristaps 1606: return(1);
1.119 schwarze 1607: return(append_delims(mdoc, line, pos, buf));
1.1 kristaps 1608: }
1609:
1610:
1611: static int
1612: in_line_eoln(MACRO_PROT_ARGS)
1613: {
1.56 kristaps 1614: int la;
1.55 kristaps 1615: enum margserr ac;
1.56 kristaps 1616: enum margverr av;
1.53 kristaps 1617: struct mdoc_arg *arg;
1618: char *p;
1619: enum mdoct ntok;
1.1 kristaps 1620:
1621: assert( ! (MDOC_PARSED & mdoc_macros[tok].flags));
1622:
1.90 schwarze 1623: if (tok == MDOC_Pp)
1.119 schwarze 1624: rew_sub(MDOC_BLOCK, mdoc, MDOC_Nm, line, ppos);
1.90 schwarze 1625:
1.32 kristaps 1626: /* Parse macro arguments. */
1.1 kristaps 1627:
1.32 kristaps 1628: for (arg = NULL; ; ) {
1.1 kristaps 1629: la = *pos;
1.119 schwarze 1630: av = mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1631:
1.56 kristaps 1632: if (ARGV_WORD == av) {
1.1 kristaps 1633: *pos = la;
1634: break;
1635: }
1.56 kristaps 1636: if (ARGV_EOLN == av)
1.1 kristaps 1637: break;
1.56 kristaps 1638: if (ARGV_ARG == av)
1.1 kristaps 1639: continue;
1640:
1641: mdoc_argv_free(arg);
1642: return(0);
1643: }
1644:
1.32 kristaps 1645: /* Open element scope. */
1646:
1.119 schwarze 1647: if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg))
1.1 kristaps 1648: return(0);
1649:
1.32 kristaps 1650: /* Parse argument terms. */
1.1 kristaps 1651:
1652: for (;;) {
1653: la = *pos;
1.119 schwarze 1654: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 1655:
1.53 kristaps 1656: if (ARGS_ERROR == ac)
1.1 kristaps 1657: return(0);
1.53 kristaps 1658: if (ARGS_EOLN == ac)
1.1 kristaps 1659: break;
1660:
1.53 kristaps 1661: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p);
1.1 kristaps 1662:
1.53 kristaps 1663: if (MDOC_MAX == ntok) {
1.119 schwarze 1664: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.1 kristaps 1665: return(0);
1.53 kristaps 1666: continue;
1667: }
1.1 kristaps 1668:
1.119 schwarze 1669: if ( ! rew_elem(mdoc, tok))
1.1 kristaps 1670: return(0);
1.119 schwarze 1671: return(mdoc_macro(mdoc, ntok, line, la, pos, buf));
1.1 kristaps 1672: }
1673:
1.32 kristaps 1674: /* Close out (no delimiters). */
1675:
1.119 schwarze 1676: return(rew_elem(mdoc, tok));
1.1 kristaps 1677: }
1678:
1679:
1680: /* ARGSUSED */
1681: static int
1.41 kristaps 1682: ctx_synopsis(MACRO_PROT_ARGS)
1683: {
1.60 kristaps 1684: int nl;
1685:
1.119 schwarze 1686: nl = MDOC_NEWLINE & mdoc->flags;
1.41 kristaps 1687:
1688: /* If we're not in the SYNOPSIS, go straight to in-line. */
1.119 schwarze 1689: if ( ! (MDOC_SYNOPSIS & mdoc->flags))
1690: return(in_line(mdoc, tok, line, ppos, pos, buf));
1.41 kristaps 1691:
1692: /* If we're a nested call, same place. */
1.60 kristaps 1693: if ( ! nl)
1.119 schwarze 1694: return(in_line(mdoc, tok, line, ppos, pos, buf));
1.41 kristaps 1695:
1696: /*
1697: * XXX: this will open a block scope; however, if later we end
1698: * up formatting the block scope, then child nodes will inherit
1699: * the formatting. Be careful.
1700: */
1.88 schwarze 1701: if (MDOC_Nm == tok)
1.119 schwarze 1702: return(blk_full(mdoc, tok, line, ppos, pos, buf));
1.88 schwarze 1703: assert(MDOC_Vt == tok);
1.119 schwarze 1704: return(blk_part_imp(mdoc, tok, line, ppos, pos, buf));
1.41 kristaps 1705: }
1706:
1707:
1708: /* ARGSUSED */
1709: static int
1.1 kristaps 1710: obsolete(MACRO_PROT_ARGS)
1711: {
1712:
1.119 schwarze 1713: mdoc_pmsg(mdoc, line, ppos, MANDOCERR_MACROOBS);
1.103 kristaps 1714: return(1);
1.1 kristaps 1715: }
1716:
1717:
1.24 kristaps 1718: /*
1719: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1720: * They're unusual because they're basically free-form text until a
1721: * macro is encountered.
1722: */
1.1 kristaps 1723: static int
1.119 schwarze 1724: phrase(struct mdoc *mdoc, int line, int ppos, char *buf)
1.1 kristaps 1725: {
1.53 kristaps 1726: int la, pos;
1.75 kristaps 1727: enum margserr ac;
1.53 kristaps 1728: enum mdoct ntok;
1729: char *p;
1.1 kristaps 1730:
1.24 kristaps 1731: for (pos = ppos; ; ) {
1732: la = pos;
1.1 kristaps 1733:
1.119 schwarze 1734: ac = mdoc_zargs(mdoc, line, &pos, buf, &p);
1.1 kristaps 1735:
1.75 kristaps 1736: if (ARGS_ERROR == ac)
1.24 kristaps 1737: return(0);
1.75 kristaps 1738: if (ARGS_EOLN == ac)
1.24 kristaps 1739: break;
1.1 kristaps 1740:
1.75 kristaps 1741: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1.1 kristaps 1742:
1.53 kristaps 1743: if (MDOC_MAX == ntok) {
1.119 schwarze 1744: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.1 kristaps 1745: return(0);
1.53 kristaps 1746: continue;
1747: }
1.1 kristaps 1748:
1.119 schwarze 1749: if ( ! mdoc_macro(mdoc, ntok, line, la, &pos, buf))
1.1 kristaps 1750: return(0);
1.119 schwarze 1751: return(append_delims(mdoc, line, &pos, buf));
1.1 kristaps 1752: }
1753:
1754: return(1);
1755: }
1.24 kristaps 1756:
1757:
1.79 kristaps 1758: /* ARGSUSED */
1.75 kristaps 1759: static int
1760: phrase_ta(MACRO_PROT_ARGS)
1761: {
1762: int la;
1763: enum mdoct ntok;
1764: enum margserr ac;
1765: char *p;
1766:
1767: /*
1768: * FIXME: this is overly restrictive: if the `Ta' is unexpected,
1769: * it should simply error out with ARGSLOST.
1770: */
1771:
1.119 schwarze 1772: if ( ! rew_sub(MDOC_BODY, mdoc, MDOC_It, line, ppos))
1.75 kristaps 1773: return(0);
1.119 schwarze 1774: if ( ! mdoc_body_alloc(mdoc, line, ppos, MDOC_It))
1.75 kristaps 1775: return(0);
1776:
1777: for (;;) {
1778: la = *pos;
1.119 schwarze 1779: ac = mdoc_zargs(mdoc, line, pos, buf, &p);
1.75 kristaps 1780:
1781: if (ARGS_ERROR == ac)
1782: return(0);
1783: if (ARGS_EOLN == ac)
1784: break;
1785:
1786: ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p);
1787:
1788: if (MDOC_MAX == ntok) {
1.119 schwarze 1789: if ( ! dword(mdoc, line, la, p, DELIM_MAX))
1.75 kristaps 1790: return(0);
1791: continue;
1792: }
1793:
1.119 schwarze 1794: if ( ! mdoc_macro(mdoc, ntok, line, la, pos, buf))
1.75 kristaps 1795: return(0);
1.119 schwarze 1796: return(append_delims(mdoc, line, pos, buf));
1.75 kristaps 1797: }
1798:
1799: return(1);
1800: }
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