Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.131
1.131 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.130 2015/02/04 22:29:27 schwarze Exp $ */
1.1 kristaps 2: /*
1.74 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.118 schwarze 4: * Copyright (c) 2010, 2012-2015 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: */
1.100 schwarze 18: #include <sys/types.h>
19:
1.1 kristaps 20: #include <assert.h>
21: #include <ctype.h>
22: #include <stdlib.h>
23: #include <stdio.h>
24: #include <string.h>
1.26 schwarze 25: #include <time.h>
1.1 kristaps 26:
1.66 schwarze 27: #include "mdoc.h"
1.44 schwarze 28: #include "mandoc.h"
1.1 kristaps 29: #include "libmdoc.h"
1.39 schwarze 30: #include "libmandoc.h"
1.1 kristaps 31:
1.107 schwarze 32: static void blk_full(MACRO_PROT_ARGS);
33: static void blk_exp_close(MACRO_PROT_ARGS);
34: static void blk_part_exp(MACRO_PROT_ARGS);
35: static void blk_part_imp(MACRO_PROT_ARGS);
36: static void ctx_synopsis(MACRO_PROT_ARGS);
37: static void in_line_eoln(MACRO_PROT_ARGS);
38: static void in_line_argn(MACRO_PROT_ARGS);
39: static void in_line(MACRO_PROT_ARGS);
40: static void phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 41:
1.106 schwarze 42: static void dword(struct mdoc *, int, int, const char *,
1.80 schwarze 43: enum mdelim, int);
1.106 schwarze 44: static void append_delims(struct mdoc *, int, int *, char *);
1.111 schwarze 45: static enum mdoct lookup(struct mdoc *, enum mdoct,
46: int, int, const char *);
1.109 schwarze 47: static int macro_or_word(MACRO_PROT_ARGS, int);
1.124 schwarze 48: static void make_pending(struct mdoc *, struct mdoc_node *,
49: struct mdoc_node *, int, int);
1.110 schwarze 50: static int parse_rest(struct mdoc *, enum mdoct,
51: int, int *, char *);
1.88 schwarze 52: static enum mdoct rew_alt(enum mdoct);
1.105 schwarze 53: static void rew_elem(struct mdoc *, enum mdoct);
54: static void rew_last(struct mdoc *, const struct mdoc_node *);
1.122 schwarze 55: static void rew_pending(struct mdoc *, const struct mdoc_node *);
1.1 kristaps 56:
57: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.80 schwarze 58: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 59: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
60: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
61: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.80 schwarze 62: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
63: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
64: { in_line_eoln, 0 }, /* Pp */
65: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
66: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 67: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.80 schwarze 68: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 69: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.80 schwarze 70: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
71: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
72: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
73: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 74: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.86 schwarze 75: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 76: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.80 schwarze 77: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
78: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
79: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 80: { in_line_eoln, 0 }, /* Ex */
1.80 schwarze 81: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
82: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.80 schwarze 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.85 schwarze 86: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.11 schwarze 87: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.80 schwarze 88: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
89: { blk_full, MDOC_JOIN }, /* Nd */
90: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 91: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.89 schwarze 92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
94: { in_line_eoln, 0 }, /* Rv */
1.80 schwarze 95: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.80 schwarze 97: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.28 schwarze 98: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.80 schwarze 99: { in_line_eoln, MDOC_JOIN }, /* %A */
100: { in_line_eoln, MDOC_JOIN }, /* %B */
101: { in_line_eoln, MDOC_JOIN }, /* %D */
102: { in_line_eoln, MDOC_JOIN }, /* %I */
103: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 104: { in_line_eoln, 0 }, /* %N */
1.80 schwarze 105: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 106: { in_line_eoln, 0 }, /* %P */
1.80 schwarze 107: { in_line_eoln, MDOC_JOIN }, /* %R */
108: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 109: { in_line_eoln, 0 }, /* %V */
1.80 schwarze 110: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
111: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
112: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
113: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
114: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 115: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.80 schwarze 116: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
117: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
118: { blk_full, MDOC_EXPLICIT }, /* Bf */
119: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
120: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
121: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 122: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
123: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
124: { in_line_eoln, 0 }, /* Db */
1.80 schwarze 125: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
126: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
127: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
128: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
129: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
130: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
131: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
132: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 133: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
134: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 135: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.100 schwarze 136: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.80 schwarze 137: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
138: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 139: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.80 schwarze 141: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
142: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.35 schwarze 143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.80 schwarze 144: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
145: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
146: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
147: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
148: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
149: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
150: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
151: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
152: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
153: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 154: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.80 schwarze 155: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
156: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
157: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
158: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
159: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.103 schwarze 160: { in_line_argn, 0 }, /* Sm */
1.80 schwarze 161: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
162: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 163: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.80 schwarze 164: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 165: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
166: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.80 schwarze 167: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
168: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
169: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
170: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
171: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
172: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
173: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 174: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.80 schwarze 175: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 176: { in_line_eoln, 0 }, /* Bt */
177: { in_line_eoln, 0 }, /* Hf */
1.89 schwarze 178: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 179: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 180: { in_line, 0 }, /* Lb */
1.80 schwarze 181: { in_line_eoln, 0 }, /* Lp */
182: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
183: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
184: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
185: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
186: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
187: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
188: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
189: { in_line_eoln, MDOC_JOIN }, /* %C */
1.89 schwarze 190: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
191: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 192: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.80 schwarze 193: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.13 schwarze 194: { in_line_eoln, 0 }, /* br */
195: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 196: { in_line_eoln, 0 }, /* %U */
1.80 schwarze 197: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.99 schwarze 198: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 199: };
200:
201: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
202:
203:
204: /*
205: * This is called at the end of parsing. It must traverse up the tree,
206: * closing out open [implicit] scopes. Obviously, open explicit scopes
207: * are errors.
208: */
1.107 schwarze 209: void
1.76 schwarze 210: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 211: {
212: struct mdoc_node *n;
213:
214: /* Scan for open explicit scopes. */
215:
1.107 schwarze 216: n = mdoc->last->flags & MDOC_VALID ?
1.88 schwarze 217: mdoc->last->parent : mdoc->last;
1.1 kristaps 218:
1.56 schwarze 219: for ( ; n; n = n->parent)
1.107 schwarze 220: if (n->type == MDOC_BLOCK &&
221: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.94 schwarze 222: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
223: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 224:
1.22 schwarze 225: /* Rewind to the first. */
226:
1.105 schwarze 227: rew_last(mdoc, mdoc->first);
1.1 kristaps 228: }
229:
1.22 schwarze 230: /*
1.109 schwarze 231: * Look up the macro at *p called by "from",
232: * or as a line macro if from == MDOC_MAX.
1.22 schwarze 233: */
1.36 schwarze 234: static enum mdoct
1.111 schwarze 235: lookup(struct mdoc *mdoc, enum mdoct from, int line, int ppos, const char *p)
1.21 schwarze 236: {
1.36 schwarze 237: enum mdoct res;
1.1 kristaps 238:
1.109 schwarze 239: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
240: res = mdoc_hash_find(p);
1.111 schwarze 241: if (res != MDOC_MAX) {
242: if (mdoc_macros[res].flags & MDOC_CALLABLE)
243: return(res);
244: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
245: mandoc_msg(MANDOCERR_MACRO_CALL,
246: mdoc->parse, line, ppos, p);
247: }
1.109 schwarze 248: }
1.1 kristaps 249: return(MDOC_MAX);
250: }
251:
1.122 schwarze 252: /*
253: * Rewind up to and including a specific node.
254: */
1.105 schwarze 255: static void
1.22 schwarze 256: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 257: {
1.63 schwarze 258: struct mdoc_node *n, *np;
1.1 kristaps 259:
260: assert(to);
261: mdoc->next = MDOC_NEXT_SIBLING;
262: while (mdoc->last != to) {
1.63 schwarze 263: /*
264: * Save the parent here, because we may delete the
1.76 schwarze 265: * mdoc->last node in the post-validation phase and reset
266: * it to mdoc->last->parent, causing a step in the closing
1.63 schwarze 267: * out to be lost.
268: */
269: np = mdoc->last->parent;
1.105 schwarze 270: mdoc_valid_post(mdoc);
1.61 schwarze 271: n = mdoc->last;
1.63 schwarze 272: mdoc->last = np;
1.1 kristaps 273: assert(mdoc->last);
1.61 schwarze 274: mdoc->last->last = n;
1.1 kristaps 275: }
1.105 schwarze 276: mdoc_valid_post(mdoc);
1.1 kristaps 277: }
278:
1.22 schwarze 279: /*
1.122 schwarze 280: * Rewind up to a specific block, including all blocks that broke it.
281: */
282: static void
283: rew_pending(struct mdoc *mdoc, const struct mdoc_node *n)
284: {
285:
286: rew_last(mdoc, n);
287:
288: if (n->type != MDOC_BLOCK)
289: return;
290:
291: while ((n = n->pending) != NULL) {
292: rew_last(mdoc, n);
293: if (n->type == MDOC_HEAD)
294: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
295: }
296: }
297:
298: /*
1.48 schwarze 299: * For a block closing macro, return the corresponding opening one.
300: * Otherwise, return the macro itself.
1.22 schwarze 301: */
1.34 schwarze 302: static enum mdoct
303: rew_alt(enum mdoct tok)
1.1 kristaps 304: {
305: switch (tok) {
1.88 schwarze 306: case MDOC_Ac:
1.1 kristaps 307: return(MDOC_Ao);
1.88 schwarze 308: case MDOC_Bc:
1.1 kristaps 309: return(MDOC_Bo);
1.88 schwarze 310: case MDOC_Brc:
1.1 kristaps 311: return(MDOC_Bro);
1.88 schwarze 312: case MDOC_Dc:
1.1 kristaps 313: return(MDOC_Do);
1.88 schwarze 314: case MDOC_Ec:
1.1 kristaps 315: return(MDOC_Eo);
1.88 schwarze 316: case MDOC_Ed:
1.1 kristaps 317: return(MDOC_Bd);
1.88 schwarze 318: case MDOC_Ef:
1.1 kristaps 319: return(MDOC_Bf);
1.88 schwarze 320: case MDOC_Ek:
1.1 kristaps 321: return(MDOC_Bk);
1.88 schwarze 322: case MDOC_El:
1.1 kristaps 323: return(MDOC_Bl);
1.88 schwarze 324: case MDOC_Fc:
1.1 kristaps 325: return(MDOC_Fo);
1.88 schwarze 326: case MDOC_Oc:
1.1 kristaps 327: return(MDOC_Oo);
1.88 schwarze 328: case MDOC_Pc:
1.1 kristaps 329: return(MDOC_Po);
1.88 schwarze 330: case MDOC_Qc:
1.1 kristaps 331: return(MDOC_Qo);
1.88 schwarze 332: case MDOC_Re:
1.1 kristaps 333: return(MDOC_Rs);
1.88 schwarze 334: case MDOC_Sc:
1.1 kristaps 335: return(MDOC_So);
1.88 schwarze 336: case MDOC_Xc:
1.1 kristaps 337: return(MDOC_Xo);
338: default:
1.48 schwarze 339: return(tok);
1.1 kristaps 340: }
341: /* NOTREACHED */
342: }
343:
1.105 schwarze 344: static void
1.34 schwarze 345: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 346: {
347: struct mdoc_node *n;
348:
349: n = mdoc->last;
350: if (MDOC_ELEM != n->type)
351: n = n->parent;
352: assert(MDOC_ELEM == n->type);
353: assert(tok == n->tok);
1.105 schwarze 354: rew_last(mdoc, n);
1.1 kristaps 355: }
356:
1.47 schwarze 357: /*
1.124 schwarze 358: * We are trying to close the block *breaker,
1.47 schwarze 359: * but the child block *broken is still open.
1.124 schwarze 360: * Thus, postpone closing the *breaker
1.123 schwarze 361: * until the rew_pending() call closing *broken.
1.47 schwarze 362: */
1.124 schwarze 363: static void
364: make_pending(struct mdoc *mdoc, struct mdoc_node *breaker,
365: struct mdoc_node *broken, int line, int ppos)
1.47 schwarze 366: {
1.124 schwarze 367: struct mdoc_node *n;
1.47 schwarze 368:
1.125 schwarze 369: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse, line, ppos,
370: "%s breaks %s", mdoc_macronames[breaker->tok],
371: mdoc_macronames[broken->tok]);
1.124 schwarze 372:
1.125 schwarze 373: /*
374: * If the *broken block (Z) is already broken by a block (B)
375: * contained in the breaker (A), make the breaker pending
376: * on that inner breaker (B). Graphically,
377: *
378: * breaker=[A! broken=n=[B!->A (old broken=)[Z->B B] A] Z]
379: *
380: * In these graphics, "->" indicates the "pending" pointer and
381: * "!" indicates the MDOC_BREAK flag. Each of the cases gets
382: * one additional pointer (B->A) and one additional flag (A!).
383: */
1.47 schwarze 384:
1.125 schwarze 385: for (n = broken->parent; ; n = n->parent)
386: if (n == broken->pending)
1.124 schwarze 387: broken = n;
1.125 schwarze 388: else if (n == breaker)
389: break;
390:
391: /*
392: * Found the breaker.
393: *
394: * If another, outer breaker (X) is already pending on
395: * the *broken block (B), we must not clobber the link
396: * to the outer breaker, but make it pending on the new,
397: * now inner breaker (A). Graphically,
398: *
399: * [X! n=breaker=[A!->X broken=[B(->X)->A X] A] B].
400: */
1.47 schwarze 401:
1.125 schwarze 402: if (broken->pending != NULL) {
403: n = breaker;
1.47 schwarze 404:
405: /*
1.125 schwarze 406: * If the inner breaker (A) is already broken, too,
407: * it cannot take on the outer breaker (X) but must
408: * hand it on to its own breakers (Y). Graphically,
409: *
410: * [X! n=[Y!->X breaker=[A!->Y Y] broken=[B(->X)->A X] A] B]
1.47 schwarze 411: */
412:
1.125 schwarze 413: while (n->pending)
414: n = n->pending;
415: n->pending = broken->pending;
416: }
417:
418: /*
419: * Now we have reduced the situation to the simplest case:
420: * breaker=[A! broken=[B->A A] B].
421: */
1.114 schwarze 422:
1.125 schwarze 423: broken->pending = breaker;
424: breaker->flags |= MDOC_BREAK;
425: if (breaker->body != NULL)
426: breaker->body->flags |= MDOC_BREAK;
1.47 schwarze 427: }
428:
1.66 schwarze 429: /*
430: * Allocate a word and check whether it's punctuation or not.
431: * Punctuation consists of those tokens found in mdoc_isdelim().
432: */
1.106 schwarze 433: static void
1.80 schwarze 434: dword(struct mdoc *mdoc, int line, int col, const char *p,
435: enum mdelim d, int may_append)
1.66 schwarze 436: {
1.88 schwarze 437:
1.106 schwarze 438: if (d == DELIM_MAX)
1.66 schwarze 439: d = mdoc_isdelim(p);
440:
1.80 schwarze 441: if (may_append &&
1.106 schwarze 442: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
443: d == DELIM_NONE && mdoc->last->type == MDOC_TEXT &&
444: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.80 schwarze 445: mdoc_word_append(mdoc, p);
1.106 schwarze 446: return;
1.80 schwarze 447: }
448:
1.106 schwarze 449: mdoc_word_alloc(mdoc, line, col, p);
1.66 schwarze 450:
1.71 schwarze 451: /*
1.100 schwarze 452: * If the word consists of a bare delimiter,
453: * flag the new node accordingly,
454: * unless doing so was vetoed by the invoking macro.
455: * Always clear the veto, it is only valid for one word.
1.71 schwarze 456: */
457:
1.100 schwarze 458: if (d == DELIM_OPEN)
459: mdoc->last->flags |= MDOC_DELIMO;
460: else if (d == DELIM_CLOSE &&
461: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 462: mdoc->last->parent->tok != MDOC_Fd)
1.76 schwarze 463: mdoc->last->flags |= MDOC_DELIMC;
1.100 schwarze 464: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 465: }
1.1 kristaps 466:
1.106 schwarze 467: static void
1.76 schwarze 468: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 469: {
1.109 schwarze 470: char *p;
1.42 schwarze 471: int la;
1.1 kristaps 472:
1.106 schwarze 473: if (buf[*pos] == '\0')
474: return;
1.1 kristaps 475:
476: for (;;) {
1.42 schwarze 477: la = *pos;
1.109 schwarze 478: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 479: break;
1.80 schwarze 480: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 481:
1.42 schwarze 482: /*
483: * If we encounter end-of-sentence symbols, then trigger
484: * the double-space.
485: *
1.68 schwarze 486: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 487: * the last symbol, such that `. )' will cause the
488: * correct double-spacing. However, (1) groff isn't
489: * smart enough to do this and (2) it would require
490: * knowing which symbols break this behaviour, for
1.68 schwarze 491: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 492: */
1.106 schwarze 493:
1.84 schwarze 494: if (mandoc_eos(p, strlen(p)))
1.76 schwarze 495: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 496: }
497: }
498:
499: /*
1.109 schwarze 500: * Parse one word.
501: * If it is a macro, call it and return 1.
502: * Otherwise, allocate it and return 0.
503: */
504: static int
505: macro_or_word(MACRO_PROT_ARGS, int parsed)
506: {
507: char *p;
508: enum mdoct ntok;
509:
510: p = buf + ppos;
511: ntok = MDOC_MAX;
1.113 schwarze 512: if (*p == '"')
1.109 schwarze 513: p++;
1.113 schwarze 514: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 515: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 516:
517: if (ntok == MDOC_MAX) {
518: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
519: mdoc_macros[tok].flags & MDOC_JOIN);
520: return(0);
521: } else {
522: if (mdoc_macros[tok].fp == in_line_eoln)
523: rew_elem(mdoc, tok);
524: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
525: if (tok == MDOC_MAX)
526: append_delims(mdoc, line, pos, buf);
527: return(1);
528: }
529: }
530:
531: /*
1.88 schwarze 532: * Close out block partial/full explicit.
1.1 kristaps 533: */
1.107 schwarze 534: static void
1.1 kristaps 535: blk_exp_close(MACRO_PROT_ARGS)
536: {
1.47 schwarze 537: struct mdoc_node *body; /* Our own body. */
1.104 schwarze 538: struct mdoc_node *endbody; /* Our own end marker. */
1.127 schwarze 539: struct mdoc_node *itblk; /* An It block starting later. */
1.47 schwarze 540: struct mdoc_node *later; /* A sub-block starting later. */
1.122 schwarze 541: struct mdoc_node *n; /* Search back to our block. */
1.47 schwarze 542:
1.127 schwarze 543: int j, lastarg, maxargs, nl;
1.36 schwarze 544: enum margserr ac;
1.47 schwarze 545: enum mdoct atok, ntok;
1.1 kristaps 546: char *p;
547:
1.76 schwarze 548: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 549:
1.1 kristaps 550: switch (tok) {
1.88 schwarze 551: case MDOC_Ec:
1.1 kristaps 552: maxargs = 1;
553: break;
1.88 schwarze 554: case MDOC_Ek:
1.82 schwarze 555: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 556: /* FALLTHROUGH */
1.1 kristaps 557: default:
558: maxargs = 0;
559: break;
560: }
561:
1.47 schwarze 562: /*
563: * Search backwards for beginnings of blocks,
564: * both of our own and of pending sub-blocks.
565: */
1.107 schwarze 566:
1.47 schwarze 567: atok = rew_alt(tok);
1.127 schwarze 568: body = endbody = itblk = later = NULL;
1.76 schwarze 569: for (n = mdoc->last; n; n = n->parent) {
1.117 schwarze 570: if (n->flags & (MDOC_VALID | MDOC_BREAK))
1.47 schwarze 571: continue;
572:
573: /* Remember the start of our own body. */
1.107 schwarze 574:
1.106 schwarze 575: if (n->type == MDOC_BODY && atok == n->tok) {
1.131 ! schwarze 576: if (n->end == ENDBODY_NOT)
1.47 schwarze 577: body = n;
578: continue;
579: }
580:
1.106 schwarze 581: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.47 schwarze 582: continue;
1.116 schwarze 583:
584: if (n->tok == MDOC_It) {
1.127 schwarze 585: itblk = n;
1.116 schwarze 586: continue;
587: }
588:
1.47 schwarze 589: if (atok == n->tok) {
590: assert(body);
591:
592: /*
593: * Found the start of our own block.
594: * When there is no pending sub block,
595: * just proceed to closing out.
596: */
1.107 schwarze 597:
1.116 schwarze 598: if (later == NULL ||
1.127 schwarze 599: (tok == MDOC_El && itblk == NULL))
1.47 schwarze 600: break;
601:
1.88 schwarze 602: /*
1.123 schwarze 603: * When there is a pending sub block, postpone
604: * closing out the current block until the
605: * rew_pending() closing out the sub-block.
1.47 schwarze 606: */
1.107 schwarze 607:
1.124 schwarze 608: make_pending(mdoc, n, later, line, ppos);
1.127 schwarze 609: if (tok == MDOC_El)
610: itblk->flags |= MDOC_BREAK;
1.47 schwarze 611:
612: /*
613: * Mark the place where the formatting - but not
614: * the scope - of the current block ends.
615: */
1.107 schwarze 616:
1.122 schwarze 617: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.106 schwarze 618: atok, body, ENDBODY_SPACE);
1.107 schwarze 619:
620: /*
621: * If a block closing macro taking arguments
622: * breaks another block, put the arguments
1.122 schwarze 623: * into the end marker.
1.107 schwarze 624: */
625:
1.122 schwarze 626: if (maxargs)
1.104 schwarze 627: mdoc->next = MDOC_NEXT_CHILD;
1.47 schwarze 628: break;
629: }
630:
631: /*
632: * When finding an open sub block, remember the last
633: * open explicit block, or, in case there are only
634: * implicit ones, the first open implicit block.
635: */
1.107 schwarze 636:
1.116 schwarze 637: if (later == NULL ||
638: ! (mdoc_macros[later->tok].flags & MDOC_EXPLICIT))
1.47 schwarze 639: later = n;
640: }
1.122 schwarze 641:
642: if (body == NULL) {
643: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
644: line, ppos, mdoc_macronames[tok]);
645: if (maxargs && endbody == NULL) {
646: /*
647: * Stray .Ec without previous .Eo:
648: * Break the output line, keep the arguments.
649: */
650: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
651: rew_elem(mdoc, MDOC_br);
652: }
653: } else if (endbody == NULL) {
654: rew_last(mdoc, body);
655: if (maxargs)
656: mdoc_tail_alloc(mdoc, line, ppos, atok);
657: }
1.47 schwarze 658:
1.106 schwarze 659: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
660: if (buf[*pos] != '\0')
1.93 schwarze 661: mandoc_vmsg(MANDOCERR_ARG_SKIP,
662: mdoc->parse, line, ppos,
663: "%s %s", mdoc_macronames[tok],
664: buf + *pos);
1.127 schwarze 665: if (endbody == NULL && n != NULL)
1.123 schwarze 666: rew_pending(mdoc, n);
1.107 schwarze 667: return;
1.1 kristaps 668: }
669:
1.122 schwarze 670: if (endbody != NULL)
671: n = endbody;
1.104 schwarze 672: for (j = 0; ; j++) {
1.1 kristaps 673: lastarg = *pos;
674:
1.122 schwarze 675: if (j == maxargs && n != NULL) {
676: rew_pending(mdoc, n);
677: n = NULL;
1.1 kristaps 678: }
679:
1.76 schwarze 680: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 681: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 682: break;
683:
1.111 schwarze 684: ntok = ac == ARGS_QWORD ? MDOC_MAX :
685: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 686:
1.106 schwarze 687: if (ntok == MDOC_MAX) {
688: dword(mdoc, line, lastarg, p, DELIM_MAX,
689: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 690: continue;
691: }
1.1 kristaps 692:
1.122 schwarze 693: if (n != NULL) {
694: rew_pending(mdoc, n);
695: n = NULL;
1.36 schwarze 696: }
1.79 schwarze 697: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 698: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 699: break;
1.1 kristaps 700: }
701:
1.122 schwarze 702: if (n != NULL)
703: rew_pending(mdoc, n);
1.106 schwarze 704: if (nl)
705: append_delims(mdoc, line, pos, buf);
1.1 kristaps 706: }
707:
1.107 schwarze 708: static void
1.1 kristaps 709: in_line(MACRO_PROT_ARGS)
710: {
1.100 schwarze 711: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.36 schwarze 712: enum mdoct ntok;
713: enum margserr ac;
1.40 schwarze 714: enum mdelim d;
1.36 schwarze 715: struct mdoc_arg *arg;
716: char *p;
1.1 kristaps 717:
1.76 schwarze 718: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 719:
1.1 kristaps 720: /*
721: * Whether we allow ignored elements (those without content,
722: * usually because of reserved words) to squeak by.
723: */
1.32 schwarze 724:
1.1 kristaps 725: switch (tok) {
1.88 schwarze 726: case MDOC_An:
1.19 schwarze 727: /* FALLTHROUGH */
1.88 schwarze 728: case MDOC_Ar:
1.1 kristaps 729: /* FALLTHROUGH */
1.88 schwarze 730: case MDOC_Fl:
1.1 kristaps 731: /* FALLTHROUGH */
1.88 schwarze 732: case MDOC_Mt:
1.18 schwarze 733: /* FALLTHROUGH */
1.88 schwarze 734: case MDOC_Nm:
1.19 schwarze 735: /* FALLTHROUGH */
1.88 schwarze 736: case MDOC_Pa:
1.1 kristaps 737: nc = 1;
738: break;
739: default:
740: nc = 0;
741: break;
742: }
743:
1.108 schwarze 744: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 745:
1.100 schwarze 746: d = DELIM_NONE;
747: firstarg = 1;
1.98 schwarze 748: mayopen = 1;
1.45 schwarze 749: for (cnt = scope = 0;; ) {
1.1 kristaps 750: la = *pos;
1.76 schwarze 751: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 752:
1.100 schwarze 753: /*
754: * At the end of a macro line,
755: * opening delimiters do not suppress spacing.
756: */
757:
758: if (ac == ARGS_EOLN) {
759: if (d == DELIM_OPEN)
760: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 761: break;
1.100 schwarze 762: }
763:
764: /*
765: * The rest of the macro line is only punctuation,
766: * to be handled by append_delims().
767: * If there were no other arguments,
768: * do not allow the first one to suppress spacing,
769: * even if it turns out to be a closing one.
770: */
771:
772: if (ac == ARGS_PUNCT) {
773: if (cnt == 0 && nc == 0)
774: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 775: break;
1.100 schwarze 776: }
1.1 kristaps 777:
1.101 schwarze 778: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.111 schwarze 779: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 780:
1.88 schwarze 781: /*
1.1 kristaps 782: * In this case, we've located a submacro and must
783: * execute it. Close out scope, if open. If no
784: * elements have been generated, either create one (nc)
785: * or raise a warning.
786: */
787:
1.106 schwarze 788: if (ntok != MDOC_MAX) {
1.105 schwarze 789: if (scope)
790: rew_elem(mdoc, tok);
1.106 schwarze 791: if (nc && ! cnt) {
792: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 793: rew_last(mdoc, mdoc->last);
1.106 schwarze 794: } else if ( ! nc && ! cnt) {
1.1 kristaps 795: mdoc_argv_free(arg);
1.92 schwarze 796: mandoc_msg(MANDOCERR_MACRO_EMPTY,
797: mdoc->parse, line, ppos,
798: mdoc_macronames[tok]);
1.1 kristaps 799: }
1.107 schwarze 800: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 801: if (nl)
802: append_delims(mdoc, line, pos, buf);
1.107 schwarze 803: return;
1.88 schwarze 804: }
1.1 kristaps 805:
1.88 schwarze 806: /*
1.1 kristaps 807: * Non-quote-enclosed punctuation. Set up our scope, if
808: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 809: * the word.
1.1 kristaps 810: */
811:
1.106 schwarze 812: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 813:
1.45 schwarze 814: if (DELIM_NONE != d) {
815: /*
816: * If we encounter closing punctuation, no word
1.100 schwarze 817: * has been emitted, no scope is open, and we're
1.45 schwarze 818: * allowed to have an empty element, then start
1.98 schwarze 819: * a new scope.
1.45 schwarze 820: */
1.98 schwarze 821: if ((d == DELIM_CLOSE ||
822: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 823: !cnt && !scope && nc && mayopen) {
1.106 schwarze 824: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 825: scope = 1;
1.98 schwarze 826: cnt++;
1.106 schwarze 827: if (tok == MDOC_Nm)
1.98 schwarze 828: mayopen = 0;
1.45 schwarze 829: }
830: /*
831: * Close out our scope, if one is open, before
832: * any punctuation.
833: */
1.105 schwarze 834: if (scope)
835: rew_elem(mdoc, tok);
1.45 schwarze 836: scope = 0;
1.101 schwarze 837: if (tok == MDOC_Fn)
838: mayopen = 0;
1.98 schwarze 839: } else if (mayopen && !scope) {
1.106 schwarze 840: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 841: scope = 1;
1.98 schwarze 842: cnt++;
1.1 kristaps 843: }
1.66 schwarze 844:
1.106 schwarze 845: dword(mdoc, line, la, p, d,
846: MDOC_JOIN & mdoc_macros[tok].flags);
1.27 schwarze 847:
848: /*
1.100 schwarze 849: * If the first argument is a closing delimiter,
850: * do not suppress spacing before it.
851: */
852:
853: if (firstarg && d == DELIM_CLOSE && !nc)
854: mdoc->last->flags &= ~MDOC_DELIMC;
855: firstarg = 0;
856:
857: /*
1.27 schwarze 858: * `Fl' macros have their scope re-opened with each new
859: * word so that the `-' can be added to each one without
860: * having to parse out spaces.
861: */
1.106 schwarze 862: if (scope && tok == MDOC_Fl) {
1.105 schwarze 863: rew_elem(mdoc, tok);
1.45 schwarze 864: scope = 0;
1.27 schwarze 865: }
1.1 kristaps 866: }
867:
1.105 schwarze 868: if (scope)
869: rew_elem(mdoc, tok);
1.1 kristaps 870:
871: /*
872: * If no elements have been collected and we're allowed to have
873: * empties (nc), open a scope and close it out. Otherwise,
874: * raise a warning.
875: */
1.32 schwarze 876:
1.106 schwarze 877: if ( ! cnt) {
878: if (nc) {
879: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
880: rew_last(mdoc, mdoc->last);
881: } else {
882: mdoc_argv_free(arg);
883: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
884: line, ppos, mdoc_macronames[tok]);
885: }
1.1 kristaps 886: }
1.106 schwarze 887: if (nl)
888: append_delims(mdoc, line, pos, buf);
1.1 kristaps 889: }
890:
1.107 schwarze 891: static void
1.1 kristaps 892: blk_full(MACRO_PROT_ARGS)
893: {
1.109 schwarze 894: int la, nl, parsed;
1.1 kristaps 895: struct mdoc_arg *arg;
1.127 schwarze 896: struct mdoc_node *blk; /* Our own or a broken block. */
1.121 schwarze 897: struct mdoc_node *head; /* Our own head. */
898: struct mdoc_node *body; /* Our own body. */
1.32 schwarze 899: struct mdoc_node *n;
1.37 schwarze 900: enum margserr ac, lac;
1.1 kristaps 901: char *p;
902:
1.76 schwarze 903: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 904:
1.127 schwarze 905: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
906:
907: /* Here, tok is one of Sh Ss Nm Nd It. */
908:
909: blk = NULL;
910: for (n = mdoc->last; n != NULL; n = n->parent) {
911: if (n->flags & (MDOC_VALID | MDOC_BREAK) ||
912: n->type != MDOC_BLOCK)
913: continue;
914: if (tok == MDOC_It && n->tok == MDOC_Bl) {
915: if (blk != NULL) {
916: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
917: mdoc->parse, line, ppos,
918: "It breaks %s",
919: mdoc_macronames[blk->tok]);
920: rew_pending(mdoc, blk);
921: }
922: break;
923: }
924:
925: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
926: switch (tok) {
927: case MDOC_Sh:
928: /* FALLTHROUGH */
929: case MDOC_Ss:
930: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
931: mdoc->parse, line, ppos,
932: "%s breaks %s",
933: mdoc_macronames[tok],
934: mdoc_macronames[n->tok]);
935: rew_pending(mdoc, n);
936: continue;
937: case MDOC_It:
938: /* Delay in case it's astray. */
939: blk = n;
940: continue;
941: default:
942: break;
943: }
944: break;
945: }
946:
947: /* Here, n is one of Sh Ss Nm Nd It. */
1.95 schwarze 948:
1.127 schwarze 949: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
950: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
951: (tok != MDOC_It && n->tok == MDOC_It)))))
1.95 schwarze 952: break;
1.127 schwarze 953:
954: /* Item breaking an explicit block. */
955:
956: if (blk != NULL) {
957: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
958: mdoc->parse, line, ppos,
959: "It breaks %s",
960: mdoc_macronames[blk->tok]);
961: rew_pending(mdoc, blk);
1.128 schwarze 962: blk = NULL;
1.127 schwarze 963: }
964:
965: /* Close out prior implicit scopes. */
966:
967: rew_last(mdoc, n);
968: }
969:
970: /* Skip items outside lists. */
971:
972: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.95 schwarze 973: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
974: line, ppos, "It %s", buf + *pos);
1.106 schwarze 975: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.105 schwarze 976: rew_elem(mdoc, MDOC_br);
1.107 schwarze 977: return;
1.95 schwarze 978: }
1.1 kristaps 979: }
980:
1.32 schwarze 981: /*
1.68 schwarze 982: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 983: * macro openings. Implicit ones first close out prior scope
984: * (seen above). Delay opening the head until necessary to
985: * allow leading punctuation to print. Special consideration
986: * for `It -column', which has phrase-part syntax instead of
987: * regular child nodes.
988: */
989:
1.108 schwarze 990: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.121 schwarze 991: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 992: head = body = NULL;
1.1 kristaps 993:
1.32 schwarze 994: /*
1.73 schwarze 995: * Exception: Heads of `It' macros in `-diag' lists are not
996: * parsed, even though `It' macros in general are parsed.
997: */
1.107 schwarze 998:
1.109 schwarze 999: parsed = tok != MDOC_It ||
1000: mdoc->last->parent->tok != MDOC_Bl ||
1001: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1002:
1003: /*
1.32 schwarze 1004: * The `Nd' macro has all arguments in its body: it's a hybrid
1005: * of block partial-explicit and full-implicit. Stupid.
1006: */
1.12 schwarze 1007:
1.106 schwarze 1008: if (tok == MDOC_Nd) {
1009: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 1010: rew_last(mdoc, head);
1.106 schwarze 1011: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1012: }
1013:
1.106 schwarze 1014: if (tok == MDOC_Bk)
1.80 schwarze 1015: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1016:
1.106 schwarze 1017: ac = ARGS_PEND;
1018: for (;;) {
1.32 schwarze 1019: la = *pos;
1.106 schwarze 1020: lac = ac;
1.76 schwarze 1021: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1022: if (ac == ARGS_EOLN) {
1023: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.46 schwarze 1024: break;
1025: /*
1026: * This is necessary: if the last token on a
1027: * line is a `Ta' or tab, then we'll get
1028: * ARGS_EOLN, so we must be smart enough to
1029: * reopen our scope if the last parse was a
1030: * phrase or partial phrase.
1031: */
1.123 schwarze 1032: if (body != NULL)
1033: rew_last(mdoc, body);
1.106 schwarze 1034: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1035: break;
1.41 schwarze 1036: }
1.130 schwarze 1037: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1038: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1039: mdoc->parse, line, la, "%s ... %s",
1040: mdoc_macronames[tok], buf + la);
1041: break;
1042: }
1.129 schwarze 1043: if (tok == MDOC_Rs) {
1044: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1045: line, la, "Rs %s", buf + la);
1046: break;
1047: }
1048: if (ac == ARGS_PUNCT)
1049: break;
1.41 schwarze 1050:
1.88 schwarze 1051: /*
1.46 schwarze 1052: * Emit leading punctuation (i.e., punctuation before
1053: * the MDOC_HEAD) for non-phrase types.
1054: */
1.32 schwarze 1055:
1.106 schwarze 1056: if (head == NULL &&
1057: ac != ARGS_PEND &&
1058: ac != ARGS_PHRASE &&
1059: ac != ARGS_PPHRASE &&
1060: ac != ARGS_QWORD &&
1061: mdoc_isdelim(p) == DELIM_OPEN) {
1062: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1063: continue;
1064: }
1065:
1.46 schwarze 1066: /* Open a head if one hasn't been opened. */
1.32 schwarze 1067:
1.106 schwarze 1068: if (head == NULL)
1069: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1070:
1.106 schwarze 1071: if (ac == ARGS_PHRASE ||
1072: ac == ARGS_PEND ||
1073: ac == ARGS_PPHRASE) {
1.107 schwarze 1074:
1.46 schwarze 1075: /*
1076: * If we haven't opened a body yet, rewind the
1077: * head; if we have, rewind that instead.
1078: */
1079:
1.123 schwarze 1080: rew_last(mdoc, body == NULL ? head : body);
1.106 schwarze 1081: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1082:
1083: /*
1084: * Process phrases: set whether we're in a
1085: * partial-phrase (this effects line handling)
1086: * then call down into the phrase parser.
1087: */
1088:
1.106 schwarze 1089: if (ac == ARGS_PPHRASE)
1.76 schwarze 1090: mdoc->flags |= MDOC_PPHRASE;
1.106 schwarze 1091: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.76 schwarze 1092: mdoc->flags |= MDOC_PPHRASE;
1.110 schwarze 1093: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.76 schwarze 1094: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1095: continue;
1096: }
1097:
1.109 schwarze 1098: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1099: break;
1.32 schwarze 1100: }
1.1 kristaps 1101:
1.121 schwarze 1102: if (blk->flags & MDOC_VALID)
1103: return;
1.106 schwarze 1104: if (head == NULL)
1105: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.130 schwarze 1106: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.106 schwarze 1107: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1108: if (body != NULL)
1.46 schwarze 1109: goto out;
1.29 schwarze 1110:
1111: /*
1.34 schwarze 1112: * If there is an open (i.e., unvalidated) sub-block requiring
1113: * explicit close-out, postpone switching the current block from
1.123 schwarze 1114: * head to body until the rew_pending() call closing out that
1.34 schwarze 1115: * sub-block.
1.29 schwarze 1116: */
1.76 schwarze 1117: for (n = mdoc->last; n && n != head; n = n->parent) {
1.107 schwarze 1118: if (n->type == MDOC_BLOCK &&
1119: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1120: ! (n->flags & MDOC_VALID)) {
1.29 schwarze 1121: n->pending = head;
1.107 schwarze 1122: return;
1.29 schwarze 1123: }
1124: }
1.54 schwarze 1125:
1.32 schwarze 1126: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1127:
1.123 schwarze 1128: rew_last(mdoc, head);
1129: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1130: out:
1.106 schwarze 1131: if (mdoc->flags & MDOC_FREECOL) {
1.123 schwarze 1132: rew_last(mdoc, body);
1133: rew_last(mdoc, blk);
1.106 schwarze 1134: mdoc->flags &= ~MDOC_FREECOL;
1135: }
1.1 kristaps 1136: }
1137:
1.107 schwarze 1138: static void
1.1 kristaps 1139: blk_part_imp(MACRO_PROT_ARGS)
1140: {
1.43 schwarze 1141: int la, nl;
1.36 schwarze 1142: enum margserr ac;
1.1 kristaps 1143: char *p;
1.32 schwarze 1144: struct mdoc_node *blk; /* saved block context */
1145: struct mdoc_node *body; /* saved body context */
1146: struct mdoc_node *n;
1.1 kristaps 1147:
1.76 schwarze 1148: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1149:
1.32 schwarze 1150: /*
1151: * A macro that spans to the end of the line. This is generally
1152: * (but not necessarily) called as the first macro. The block
1153: * has a head as the immediate child, which is always empty,
1154: * followed by zero or more opening punctuation nodes, then the
1155: * body (which may be empty, depending on the macro), then zero
1156: * or more closing punctuation nodes.
1157: */
1.22 schwarze 1158:
1.106 schwarze 1159: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.118 schwarze 1160: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1161:
1.32 schwarze 1162: /*
1163: * Open the body scope "on-demand", that is, after we've
1164: * processed all our the leading delimiters (open parenthesis,
1165: * etc.).
1166: */
1.1 kristaps 1167:
1.32 schwarze 1168: for (body = NULL; ; ) {
1.22 schwarze 1169: la = *pos;
1.76 schwarze 1170: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1171: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1172: break;
1173:
1.106 schwarze 1174: if (body == NULL && ac != ARGS_QWORD &&
1175: mdoc_isdelim(p) == DELIM_OPEN) {
1176: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1177: continue;
1.80 schwarze 1178: }
1.1 kristaps 1179:
1.106 schwarze 1180: if (body == NULL)
1181: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1182:
1.109 schwarze 1183: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1184: break;
1.32 schwarze 1185: }
1.106 schwarze 1186: if (body == NULL)
1187: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1188:
1.47 schwarze 1189: /*
1190: * If there is an open sub-block requiring explicit close-out,
1.123 schwarze 1191: * postpone closing out the current block until the
1192: * rew_pending() call closing out the sub-block.
1.47 schwarze 1193: */
1.107 schwarze 1194:
1.76 schwarze 1195: for (n = mdoc->last; n && n != body && n != blk->parent;
1.88 schwarze 1196: n = n->parent) {
1.106 schwarze 1197: if (n->type == MDOC_BLOCK &&
1198: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1199: ! (n->flags & MDOC_VALID)) {
1.124 schwarze 1200: make_pending(mdoc, blk, n, line, ppos);
1.106 schwarze 1201: mdoc_endbody_alloc(mdoc, line, ppos,
1202: tok, body, ENDBODY_NOSPACE);
1.107 schwarze 1203: return;
1.47 schwarze 1204: }
1205: }
1.91 schwarze 1206: assert(n == body);
1.120 schwarze 1207: rew_last(mdoc, body);
1.106 schwarze 1208: if (nl)
1209: append_delims(mdoc, line, pos, buf);
1.122 schwarze 1210: rew_pending(mdoc, blk);
1.74 schwarze 1211:
1212: /* Move trailing .Ns out of scope. */
1213:
1214: for (n = body->child; n && n->next; n = n->next)
1215: /* Do nothing. */ ;
1.106 schwarze 1216: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1217: mdoc_node_relink(mdoc, n);
1.1 kristaps 1218: }
1219:
1.107 schwarze 1220: static void
1.1 kristaps 1221: blk_part_exp(MACRO_PROT_ARGS)
1222: {
1.37 schwarze 1223: int la, nl;
1.36 schwarze 1224: enum margserr ac;
1.32 schwarze 1225: struct mdoc_node *head; /* keep track of head */
1.1 kristaps 1226: char *p;
1227:
1.76 schwarze 1228: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1229:
1.32 schwarze 1230: /*
1231: * The opening of an explicit macro having zero or more leading
1232: * punctuation nodes; a head with optional single element (the
1233: * case of `Eo'); and a body that may be empty.
1234: */
1.22 schwarze 1235:
1.106 schwarze 1236: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.119 schwarze 1237: head = NULL;
1238: for (;;) {
1.22 schwarze 1239: la = *pos;
1.76 schwarze 1240: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1241: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1242: break;
1243:
1.32 schwarze 1244: /* Flush out leading punctuation. */
1245:
1.106 schwarze 1246: if (head == NULL && ac != ARGS_QWORD &&
1247: mdoc_isdelim(p) == DELIM_OPEN) {
1248: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1249: continue;
1.80 schwarze 1250: }
1.32 schwarze 1251:
1.106 schwarze 1252: if (head == NULL) {
1253: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1254: if (tok == MDOC_Eo) /* Not parsed. */
1.106 schwarze 1255: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.119 schwarze 1256: rew_last(mdoc, head);
1257: mdoc_body_alloc(mdoc, line, ppos, tok);
1.106 schwarze 1258: if (tok == MDOC_Eo)
1.32 schwarze 1259: continue;
1260: }
1261:
1.109 schwarze 1262: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1263: break;
1.1 kristaps 1264: }
1265:
1.32 schwarze 1266: /* Clean-up to leave in a consistent state. */
1267:
1.119 schwarze 1268: if (head == NULL) {
1269: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.106 schwarze 1270: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1271: }
1.106 schwarze 1272: if (nl)
1273: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1274: }
1275:
1.107 schwarze 1276: static void
1.1 kristaps 1277: in_line_argn(MACRO_PROT_ARGS)
1278: {
1.37 schwarze 1279: int la, flushed, j, maxargs, nl;
1.36 schwarze 1280: enum margserr ac;
1281: struct mdoc_arg *arg;
1282: char *p;
1283: enum mdoct ntok;
1.1 kristaps 1284:
1.112 schwarze 1285: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1286:
1.32 schwarze 1287: /*
1288: * A line macro that has a fixed number of arguments (maxargs).
1289: * Only open the scope once the first non-leading-punctuation is
1290: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1291: * keep it open until the maximum number of arguments are
1292: * exhausted.
1293: */
1.1 kristaps 1294:
1295: switch (tok) {
1.88 schwarze 1296: case MDOC_Ap:
1.1 kristaps 1297: /* FALLTHROUGH */
1.88 schwarze 1298: case MDOC_Ns:
1.1 kristaps 1299: /* FALLTHROUGH */
1.88 schwarze 1300: case MDOC_Ux:
1.1 kristaps 1301: maxargs = 0;
1302: break;
1.88 schwarze 1303: case MDOC_Bx:
1.64 schwarze 1304: /* FALLTHROUGH */
1.89 schwarze 1305: case MDOC_Es:
1306: /* FALLTHROUGH */
1.88 schwarze 1307: case MDOC_Xr:
1.28 schwarze 1308: maxargs = 2;
1309: break;
1.1 kristaps 1310: default:
1311: maxargs = 1;
1312: break;
1313: }
1314:
1.108 schwarze 1315: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1316:
1.112 schwarze 1317: p = NULL;
1318: flushed = j = 0;
1319: for (;;) {
1.22 schwarze 1320: la = *pos;
1.76 schwarze 1321: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.112 schwarze 1322: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1323: if (j < 2 && tok == MDOC_Pf)
1324: mandoc_vmsg(MANDOCERR_PF_SKIP,
1325: mdoc->parse, line, ppos, "Pf %s",
1326: p == NULL ? "at eol" : p);
1.1 kristaps 1327: break;
1.112 schwarze 1328: }
1.1 kristaps 1329:
1.106 schwarze 1330: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1331: ac != ARGS_QWORD && j == 0 &&
1332: mdoc_isdelim(p) == DELIM_OPEN) {
1333: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1334: continue;
1.106 schwarze 1335: } else if (j == 0)
1336: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.32 schwarze 1337:
1338: if (j == maxargs && ! flushed) {
1.105 schwarze 1339: rew_elem(mdoc, tok);
1.32 schwarze 1340: flushed = 1;
1341: }
1342:
1.112 schwarze 1343: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && j == 0)) ?
1344: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1345:
1.106 schwarze 1346: if (ntok != MDOC_MAX) {
1.105 schwarze 1347: if ( ! flushed)
1348: rew_elem(mdoc, tok);
1.1 kristaps 1349: flushed = 1;
1.107 schwarze 1350: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.32 schwarze 1351: j++;
1.1 kristaps 1352: break;
1353: }
1354:
1.106 schwarze 1355: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1356: ac != ARGS_QWORD && ! flushed &&
1357: mdoc_isdelim(p) != DELIM_NONE) {
1.105 schwarze 1358: rew_elem(mdoc, tok);
1.1 kristaps 1359: flushed = 1;
1.28 schwarze 1360: }
1361:
1.106 schwarze 1362: dword(mdoc, line, la, p, DELIM_MAX,
1363: MDOC_JOIN & mdoc_macros[tok].flags);
1.32 schwarze 1364: j++;
1.1 kristaps 1365: }
1366:
1.112 schwarze 1367: if (j == 0) {
1.106 schwarze 1368: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.112 schwarze 1369: if (ac == ARGS_PUNCT && tok == MDOC_Pf)
1370: append_delims(mdoc, line, pos, buf);
1371: }
1.105 schwarze 1372: if ( ! flushed)
1373: rew_elem(mdoc, tok);
1.106 schwarze 1374: if (nl)
1375: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1376: }
1377:
1.107 schwarze 1378: static void
1.1 kristaps 1379: in_line_eoln(MACRO_PROT_ARGS)
1380: {
1.126 schwarze 1381: struct mdoc_node *n;
1382: struct mdoc_arg *arg;
1.1 kristaps 1383:
1.126 schwarze 1384: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1385: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1386: n = mdoc->last;
1387: if (mdoc->next == MDOC_NEXT_SIBLING)
1388: n = n->parent;
1389: if (n->tok == MDOC_Nm)
1390: rew_last(mdoc, mdoc->last->parent);
1391: }
1.53 schwarze 1392:
1.108 schwarze 1393: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1394: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1395: if (parse_rest(mdoc, tok, line, pos, buf))
1396: return;
1397: rew_elem(mdoc, tok);
1398: }
1399:
1400: /*
1401: * The simplest argument parser available: Parse the remaining
1402: * words until the end of the phrase or line and return 0
1403: * or until the next macro, call that macro, and return 1.
1404: */
1405: static int
1406: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1407: {
1408: int la;
1.1 kristaps 1409:
1410: for (;;) {
1411: la = *pos;
1.109 schwarze 1412: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.110 schwarze 1413: return(0);
1.109 schwarze 1414: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.110 schwarze 1415: return(1);
1.1 kristaps 1416: }
1.28 schwarze 1417: }
1418:
1.107 schwarze 1419: static void
1.28 schwarze 1420: ctx_synopsis(MACRO_PROT_ARGS)
1421: {
1.37 schwarze 1422:
1.107 schwarze 1423: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1424: in_line(mdoc, tok, line, ppos, pos, buf);
1425: else if (tok == MDOC_Nm)
1426: blk_full(mdoc, tok, line, ppos, pos, buf);
1427: else {
1428: assert(tok == MDOC_Vt);
1429: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1430: }
1.1 kristaps 1431: }
1432:
1.17 schwarze 1433: /*
1434: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1435: * They're unusual because they're basically free-form text until a
1436: * macro is encountered.
1437: */
1.107 schwarze 1438: static void
1.46 schwarze 1439: phrase_ta(MACRO_PROT_ARGS)
1440: {
1.123 schwarze 1441: struct mdoc_node *body, *n;
1.46 schwarze 1442:
1.78 schwarze 1443: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1444:
1.123 schwarze 1445: body = NULL;
1446: for (n = mdoc->last; n != NULL; n = n->parent) {
1447: if (n->flags & (MDOC_VALID | MDOC_BREAK))
1448: continue;
1449: if (n->tok == MDOC_It && n->type == MDOC_BODY)
1450: body = n;
1451: if (n->tok == MDOC_Bl)
1452: break;
1453: }
1454:
1.107 schwarze 1455: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1456: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1457: line, ppos, "Ta");
1.107 schwarze 1458: return;
1.78 schwarze 1459: }
1.46 schwarze 1460:
1.78 schwarze 1461: /* Advance to the next column. */
1.106 schwarze 1462:
1.123 schwarze 1463: rew_last(mdoc, body);
1.106 schwarze 1464: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.110 schwarze 1465: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.46 schwarze 1466: }
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