Annotation of mandoc/mdoc_macro.c, Revision 1.187
1.187 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.186 2015/04/05 14:43:36 schwarze Exp $ */
1.1 kristaps 2: /*
1.116 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.162 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
1.8 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: *
1.184 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.8 kristaps 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.184 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.8 kristaps 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: #include "config.h"
1.140 schwarze 19:
20: #include <sys/types.h>
1.40 kristaps 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:
1.184 schwarze 29: #include "mandoc.h"
30: #include "roff.h"
1.106 kristaps 31: #include "mdoc.h"
1.184 schwarze 32: #include "libmandoc.h"
1.1 kristaps 33: #include "libmdoc.h"
34:
1.151 schwarze 35: static void blk_full(MACRO_PROT_ARGS);
36: static void blk_exp_close(MACRO_PROT_ARGS);
37: static void blk_part_exp(MACRO_PROT_ARGS);
38: static void blk_part_imp(MACRO_PROT_ARGS);
39: static void ctx_synopsis(MACRO_PROT_ARGS);
40: static void in_line_eoln(MACRO_PROT_ARGS);
41: static void in_line_argn(MACRO_PROT_ARGS);
42: static void in_line(MACRO_PROT_ARGS);
43: static void phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 44:
1.187 ! schwarze 45: static void append_delims(struct mdoc *, int, int *, char *);
1.150 schwarze 46: static void dword(struct mdoc *, int, int, const char *,
1.187 ! schwarze 47: enum mdelim, int);
! 48: static int find_pending(struct mdoc *, int, int, int,
! 49: struct roff_node *);
1.185 schwarze 50: static int lookup(struct mdoc *, int, int, int, const char *);
1.153 schwarze 51: static int macro_or_word(MACRO_PROT_ARGS, int);
1.185 schwarze 52: static int parse_rest(struct mdoc *, int, int, int *, char *);
53: static int rew_alt(int);
54: static void rew_elem(struct mdoc *, int);
55: static void rew_last(struct mdoc *, const struct roff_node *);
56: static void rew_pending(struct mdoc *, const struct roff_node *);
1.1 kristaps 57:
58: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123 schwarze 59: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 60: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
61: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
62: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123 schwarze 63: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
64: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
65: { in_line_eoln, 0 }, /* Pp */
66: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
67: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 68: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123 schwarze 69: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 70: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123 schwarze 71: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
72: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
73: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
74: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 75: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129 schwarze 76: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 77: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123 schwarze 78: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
79: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 81: { in_line_eoln, 0 }, /* Ex */
1.123 schwarze 82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
83: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123 schwarze 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128 schwarze 87: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18 kristaps 88: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123 schwarze 89: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
90: { blk_full, MDOC_JOIN }, /* Nd */
91: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 92: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132 schwarze 93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
95: { in_line_eoln, 0 }, /* Rv */
1.123 schwarze 96: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123 schwarze 98: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 99: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123 schwarze 100: { in_line_eoln, MDOC_JOIN }, /* %A */
101: { in_line_eoln, MDOC_JOIN }, /* %B */
102: { in_line_eoln, MDOC_JOIN }, /* %D */
103: { in_line_eoln, MDOC_JOIN }, /* %I */
104: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 105: { in_line_eoln, 0 }, /* %N */
1.123 schwarze 106: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 107: { in_line_eoln, 0 }, /* %P */
1.123 schwarze 108: { in_line_eoln, MDOC_JOIN }, /* %R */
109: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 110: { in_line_eoln, 0 }, /* %V */
1.123 schwarze 111: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
112: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
113: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
114: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
115: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 116: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123 schwarze 117: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
118: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
119: { blk_full, MDOC_EXPLICIT }, /* Bf */
120: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
121: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
122: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 123: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
124: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
125: { in_line_eoln, 0 }, /* Db */
1.123 schwarze 126: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
127: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
128: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
129: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
130: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
131: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
132: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
133: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 134: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
135: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 136: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144 schwarze 137: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123 schwarze 138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
139: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123 schwarze 142: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
143: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52 kristaps 144: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123 schwarze 145: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
146: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
147: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
148: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
149: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
150: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
151: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
152: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
153: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
154: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 155: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123 schwarze 156: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
157: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
158: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
159: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
160: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147 schwarze 161: { in_line_argn, 0 }, /* Sm */
1.123 schwarze 162: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
163: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 164: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123 schwarze 165: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 166: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
167: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123 schwarze 168: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
169: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
170: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
171: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
172: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
173: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
174: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 175: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123 schwarze 176: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 177: { in_line_eoln, 0 }, /* Bt */
178: { in_line_eoln, 0 }, /* Hf */
1.132 schwarze 179: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 180: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 181: { in_line, 0 }, /* Lb */
1.123 schwarze 182: { in_line_eoln, 0 }, /* Lp */
183: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
184: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
185: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
186: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
187: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
188: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
189: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
190: { in_line_eoln, MDOC_JOIN }, /* %C */
1.132 schwarze 191: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
192: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 193: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123 schwarze 194: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20 kristaps 195: { in_line_eoln, 0 }, /* br */
196: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 197: { in_line_eoln, 0 }, /* %U */
1.123 schwarze 198: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143 schwarze 199: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 200: };
201:
202: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
203:
204:
205: /*
206: * This is called at the end of parsing. It must traverse up the tree,
207: * closing out open [implicit] scopes. Obviously, open explicit scopes
208: * are errors.
209: */
1.151 schwarze 210: void
1.119 schwarze 211: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 212: {
1.185 schwarze 213: struct roff_node *n;
1.1 kristaps 214:
215: /* Scan for open explicit scopes. */
216:
1.151 schwarze 217: n = mdoc->last->flags & MDOC_VALID ?
1.131 schwarze 218: mdoc->last->parent : mdoc->last;
1.1 kristaps 219:
1.94 schwarze 220: for ( ; n; n = n->parent)
1.184 schwarze 221: if (n->type == ROFFT_BLOCK &&
1.151 schwarze 222: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137 schwarze 223: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
224: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 225:
1.32 kristaps 226: /* Rewind to the first. */
227:
1.149 schwarze 228: rew_last(mdoc, mdoc->first);
1.1 kristaps 229: }
230:
1.32 kristaps 231: /*
1.153 schwarze 232: * Look up the macro at *p called by "from",
233: * or as a line macro if from == MDOC_MAX.
1.32 kristaps 234: */
1.185 schwarze 235: static int
236: lookup(struct mdoc *mdoc, int from, int line, int ppos, const char *p)
1.28 kristaps 237: {
1.185 schwarze 238: int res;
1.1 kristaps 239:
1.153 schwarze 240: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
241: res = mdoc_hash_find(p);
1.155 schwarze 242: if (res != MDOC_MAX) {
243: if (mdoc_macros[res].flags & MDOC_CALLABLE)
244: return(res);
245: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
246: mandoc_msg(MANDOCERR_MACRO_CALL,
247: mdoc->parse, line, ppos, p);
248: }
1.153 schwarze 249: }
1.1 kristaps 250: return(MDOC_MAX);
251: }
252:
1.166 schwarze 253: /*
254: * Rewind up to and including a specific node.
255: */
1.149 schwarze 256: static void
1.185 schwarze 257: rew_last(struct mdoc *mdoc, const struct roff_node *to)
1.1 kristaps 258: {
1.185 schwarze 259: struct roff_node *n, *np;
1.1 kristaps 260:
1.186 schwarze 261: if (to->flags & MDOC_VALID)
262: return;
263:
1.1 kristaps 264: mdoc->next = MDOC_NEXT_SIBLING;
265: while (mdoc->last != to) {
1.100 kristaps 266: /*
267: * Save the parent here, because we may delete the
1.119 schwarze 268: * mdoc->last node in the post-validation phase and reset
269: * it to mdoc->last->parent, causing a step in the closing
1.100 kristaps 270: * out to be lost.
271: */
272: np = mdoc->last->parent;
1.149 schwarze 273: mdoc_valid_post(mdoc);
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: }
1.149 schwarze 279: mdoc_valid_post(mdoc);
1.1 kristaps 280: }
281:
1.32 kristaps 282: /*
1.166 schwarze 283: * Rewind up to a specific block, including all blocks that broke it.
284: */
285: static void
1.185 schwarze 286: rew_pending(struct mdoc *mdoc, const struct roff_node *n)
1.166 schwarze 287: {
288:
1.183 schwarze 289: for (;;) {
290: rew_last(mdoc, n);
291:
292: switch (n->type) {
1.184 schwarze 293: case ROFFT_HEAD:
1.183 schwarze 294: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
295: return;
1.184 schwarze 296: case ROFFT_BLOCK:
1.183 schwarze 297: break;
298: default:
299: return;
300: }
1.166 schwarze 301:
1.183 schwarze 302: if ( ! (n->flags & MDOC_BROKEN))
303: return;
1.166 schwarze 304:
1.183 schwarze 305: for (;;) {
306: if ((n = n->parent) == NULL)
307: return;
308:
1.184 schwarze 309: if (n->type == ROFFT_BLOCK ||
310: n->type == ROFFT_HEAD) {
1.183 schwarze 311: if (n->flags & MDOC_ENDED)
312: break;
313: else
314: return;
315: }
316: }
1.166 schwarze 317: }
318: }
319:
320: /*
1.84 schwarze 321: * For a block closing macro, return the corresponding opening one.
322: * Otherwise, return the macro itself.
1.32 kristaps 323: */
1.185 schwarze 324: static int
325: rew_alt(int tok)
1.1 kristaps 326: {
327: switch (tok) {
1.131 schwarze 328: case MDOC_Ac:
1.1 kristaps 329: return(MDOC_Ao);
1.131 schwarze 330: case MDOC_Bc:
1.1 kristaps 331: return(MDOC_Bo);
1.131 schwarze 332: case MDOC_Brc:
1.1 kristaps 333: return(MDOC_Bro);
1.131 schwarze 334: case MDOC_Dc:
1.1 kristaps 335: return(MDOC_Do);
1.131 schwarze 336: case MDOC_Ec:
1.1 kristaps 337: return(MDOC_Eo);
1.131 schwarze 338: case MDOC_Ed:
1.1 kristaps 339: return(MDOC_Bd);
1.131 schwarze 340: case MDOC_Ef:
1.1 kristaps 341: return(MDOC_Bf);
1.131 schwarze 342: case MDOC_Ek:
1.1 kristaps 343: return(MDOC_Bk);
1.131 schwarze 344: case MDOC_El:
1.1 kristaps 345: return(MDOC_Bl);
1.131 schwarze 346: case MDOC_Fc:
1.1 kristaps 347: return(MDOC_Fo);
1.131 schwarze 348: case MDOC_Oc:
1.1 kristaps 349: return(MDOC_Oo);
1.131 schwarze 350: case MDOC_Pc:
1.1 kristaps 351: return(MDOC_Po);
1.131 schwarze 352: case MDOC_Qc:
1.1 kristaps 353: return(MDOC_Qo);
1.131 schwarze 354: case MDOC_Re:
1.1 kristaps 355: return(MDOC_Rs);
1.131 schwarze 356: case MDOC_Sc:
1.1 kristaps 357: return(MDOC_So);
1.131 schwarze 358: case MDOC_Xc:
1.1 kristaps 359: return(MDOC_Xo);
360: default:
1.84 schwarze 361: return(tok);
1.1 kristaps 362: }
363: /* NOTREACHED */
364: }
365:
1.149 schwarze 366: static void
1.185 schwarze 367: rew_elem(struct mdoc *mdoc, int tok)
1.1 kristaps 368: {
1.185 schwarze 369: struct roff_node *n;
1.1 kristaps 370:
371: n = mdoc->last;
1.184 schwarze 372: if (n->type != ROFFT_ELEM)
1.1 kristaps 373: n = n->parent;
1.184 schwarze 374: assert(n->type == ROFFT_ELEM);
1.1 kristaps 375: assert(tok == n->tok);
1.149 schwarze 376: rew_last(mdoc, n);
1.1 kristaps 377: }
378:
1.83 schwarze 379: /*
1.187 ! schwarze 380: * If there is an open sub-block of the target requiring
! 381: * explicit close-out, postpone closing out the target until
! 382: * the rew_pending() call closing out the sub-block.
! 383: */
! 384: static int
! 385: find_pending(struct mdoc *mdoc, int tok, int line, int ppos,
! 386: struct roff_node *target)
! 387: {
! 388: struct roff_node *n;
! 389: int irc;
! 390:
! 391: irc = 0;
! 392: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
! 393: if (n->flags & MDOC_ENDED) {
! 394: if ( ! (n->flags & MDOC_VALID))
! 395: n->flags |= MDOC_BROKEN;
! 396: continue;
! 397: }
! 398: if (n->type == ROFFT_BLOCK &&
! 399: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
! 400: irc = 1;
! 401: n->flags = MDOC_BROKEN;
! 402: if (target->type == ROFFT_HEAD)
! 403: target->flags = MDOC_ENDED;
! 404: else if ( ! (target->flags & MDOC_ENDED)) {
! 405: mandoc_vmsg(MANDOCERR_BLK_NEST,
! 406: mdoc->parse, line, ppos,
! 407: "%s breaks %s", mdoc_macronames[tok],
! 408: mdoc_macronames[n->tok]);
! 409: mdoc_endbody_alloc(mdoc, line, ppos,
! 410: tok, target, ENDBODY_NOSPACE);
! 411: }
! 412: }
! 413: }
! 414: return(irc);
! 415: }
! 416:
! 417: /*
1.105 kristaps 418: * Allocate a word and check whether it's punctuation or not.
419: * Punctuation consists of those tokens found in mdoc_isdelim().
420: */
1.150 schwarze 421: static void
1.123 schwarze 422: dword(struct mdoc *mdoc, int line, int col, const char *p,
423: enum mdelim d, int may_append)
1.105 kristaps 424: {
1.131 schwarze 425:
1.150 schwarze 426: if (d == DELIM_MAX)
1.105 kristaps 427: d = mdoc_isdelim(p);
428:
1.123 schwarze 429: if (may_append &&
1.150 schwarze 430: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184 schwarze 431: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150 schwarze 432: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123 schwarze 433: mdoc_word_append(mdoc, p);
1.150 schwarze 434: return;
1.123 schwarze 435: }
436:
1.150 schwarze 437: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 438:
1.108 schwarze 439: /*
1.144 schwarze 440: * If the word consists of a bare delimiter,
441: * flag the new node accordingly,
442: * unless doing so was vetoed by the invoking macro.
443: * Always clear the veto, it is only valid for one word.
1.108 schwarze 444: */
445:
1.144 schwarze 446: if (d == DELIM_OPEN)
447: mdoc->last->flags |= MDOC_DELIMO;
448: else if (d == DELIM_CLOSE &&
449: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 450: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 451: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 452: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 453: }
1.1 kristaps 454:
1.150 schwarze 455: static void
1.119 schwarze 456: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 457: {
1.153 schwarze 458: char *p;
1.66 kristaps 459: int la;
1.1 kristaps 460:
1.150 schwarze 461: if (buf[*pos] == '\0')
462: return;
1.1 kristaps 463:
464: for (;;) {
1.66 kristaps 465: la = *pos;
1.153 schwarze 466: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 467: break;
1.123 schwarze 468: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 469:
470: /*
471: * If we encounter end-of-sentence symbols, then trigger
472: * the double-space.
473: *
1.109 kristaps 474: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 475: * the last symbol, such that `. )' will cause the
476: * correct double-spacing. However, (1) groff isn't
477: * smart enough to do this and (2) it would require
478: * knowing which symbols break this behaviour, for
1.109 kristaps 479: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 480: */
1.150 schwarze 481:
1.127 schwarze 482: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 483: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 484: }
485: }
486:
487: /*
1.153 schwarze 488: * Parse one word.
489: * If it is a macro, call it and return 1.
490: * Otherwise, allocate it and return 0.
491: */
492: static int
493: macro_or_word(MACRO_PROT_ARGS, int parsed)
494: {
495: char *p;
1.185 schwarze 496: int ntok;
1.153 schwarze 497:
498: p = buf + ppos;
499: ntok = MDOC_MAX;
1.157 schwarze 500: if (*p == '"')
1.153 schwarze 501: p++;
1.157 schwarze 502: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 503: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 504:
505: if (ntok == MDOC_MAX) {
506: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
507: mdoc_macros[tok].flags & MDOC_JOIN);
508: return(0);
509: } else {
510: if (mdoc_macros[tok].fp == in_line_eoln)
511: rew_elem(mdoc, tok);
512: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
513: if (tok == MDOC_MAX)
514: append_delims(mdoc, line, pos, buf);
515: return(1);
516: }
517: }
518:
519: /*
1.131 schwarze 520: * Close out block partial/full explicit.
1.1 kristaps 521: */
1.151 schwarze 522: static void
1.1 kristaps 523: blk_exp_close(MACRO_PROT_ARGS)
524: {
1.185 schwarze 525: struct roff_node *body; /* Our own body. */
526: struct roff_node *endbody; /* Our own end marker. */
527: struct roff_node *itblk; /* An It block starting later. */
528: struct roff_node *later; /* A sub-block starting later. */
529: struct roff_node *n; /* Search back to our block. */
1.83 schwarze 530:
1.171 schwarze 531: int j, lastarg, maxargs, nl;
1.55 kristaps 532: enum margserr ac;
1.185 schwarze 533: int atok, ntok;
1.1 kristaps 534: char *p;
535:
1.119 schwarze 536: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 537:
1.1 kristaps 538: switch (tok) {
1.131 schwarze 539: case MDOC_Ec:
1.1 kristaps 540: maxargs = 1;
541: break;
1.131 schwarze 542: case MDOC_Ek:
1.125 schwarze 543: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 544: /* FALLTHROUGH */
1.1 kristaps 545: default:
546: maxargs = 0;
547: break;
548: }
549:
1.83 schwarze 550: /*
551: * Search backwards for beginnings of blocks,
552: * both of our own and of pending sub-blocks.
553: */
1.151 schwarze 554:
1.83 schwarze 555: atok = rew_alt(tok);
1.171 schwarze 556: body = endbody = itblk = later = NULL;
1.119 schwarze 557: for (n = mdoc->last; n; n = n->parent) {
1.183 schwarze 558: if (n->flags & MDOC_ENDED) {
559: if ( ! (n->flags & MDOC_VALID))
560: n->flags |= MDOC_BROKEN;
1.83 schwarze 561: continue;
1.183 schwarze 562: }
1.83 schwarze 563:
564: /* Remember the start of our own body. */
1.151 schwarze 565:
1.184 schwarze 566: if (n->type == ROFFT_BODY && atok == n->tok) {
1.175 schwarze 567: if (n->end == ENDBODY_NOT)
1.83 schwarze 568: body = n;
569: continue;
570: }
571:
1.184 schwarze 572: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 573: continue;
1.160 schwarze 574:
575: if (n->tok == MDOC_It) {
1.171 schwarze 576: itblk = n;
1.160 schwarze 577: continue;
578: }
579:
1.83 schwarze 580: if (atok == n->tok) {
581: assert(body);
582:
583: /*
584: * Found the start of our own block.
585: * When there is no pending sub block,
586: * just proceed to closing out.
587: */
1.151 schwarze 588:
1.160 schwarze 589: if (later == NULL ||
1.171 schwarze 590: (tok == MDOC_El && itblk == NULL))
1.83 schwarze 591: break;
592:
1.131 schwarze 593: /*
1.167 schwarze 594: * When there is a pending sub block, postpone
595: * closing out the current block until the
596: * rew_pending() closing out the sub-block.
1.83 schwarze 597: * Mark the place where the formatting - but not
598: * the scope - of the current block ends.
599: */
1.151 schwarze 600:
1.183 schwarze 601: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
602: line, ppos, "%s breaks %s",
603: mdoc_macronames[atok],
604: mdoc_macronames[later->tok]);
605:
1.166 schwarze 606: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150 schwarze 607: atok, body, ENDBODY_SPACE);
1.151 schwarze 608:
1.183 schwarze 609: if (tok == MDOC_El)
610: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
611:
1.151 schwarze 612: /*
613: * If a block closing macro taking arguments
614: * breaks another block, put the arguments
1.166 schwarze 615: * into the end marker.
1.151 schwarze 616: */
617:
1.166 schwarze 618: if (maxargs)
1.148 schwarze 619: mdoc->next = MDOC_NEXT_CHILD;
1.83 schwarze 620: break;
1.182 schwarze 621: }
622:
623: /* Explicit blocks close out description lines. */
624:
625: if (n->tok == MDOC_Nd) {
626: rew_last(mdoc, n);
627: continue;
1.83 schwarze 628: }
629:
1.183 schwarze 630: /* Breaking an open sub block. */
1.151 schwarze 631:
1.183 schwarze 632: n->flags |= MDOC_BROKEN;
633: if (later == NULL)
1.83 schwarze 634: later = n;
635: }
1.166 schwarze 636:
637: if (body == NULL) {
638: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
639: line, ppos, mdoc_macronames[tok]);
640: if (maxargs && endbody == NULL) {
641: /*
642: * Stray .Ec without previous .Eo:
643: * Break the output line, keep the arguments.
644: */
645: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
646: rew_elem(mdoc, MDOC_br);
647: }
648: } else if (endbody == NULL) {
649: rew_last(mdoc, body);
650: if (maxargs)
651: mdoc_tail_alloc(mdoc, line, ppos, atok);
652: }
1.83 schwarze 653:
1.150 schwarze 654: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
655: if (buf[*pos] != '\0')
1.136 schwarze 656: mandoc_vmsg(MANDOCERR_ARG_SKIP,
657: mdoc->parse, line, ppos,
658: "%s %s", mdoc_macronames[tok],
659: buf + *pos);
1.171 schwarze 660: if (endbody == NULL && n != NULL)
1.167 schwarze 661: rew_pending(mdoc, n);
1.151 schwarze 662: return;
1.1 kristaps 663: }
664:
1.166 schwarze 665: if (endbody != NULL)
666: n = endbody;
1.148 schwarze 667: for (j = 0; ; j++) {
1.1 kristaps 668: lastarg = *pos;
669:
1.186 schwarze 670: if (j == maxargs && n != NULL)
671: rew_last(mdoc, n);
1.1 kristaps 672:
1.119 schwarze 673: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 674: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 675: break;
676:
1.155 schwarze 677: ntok = ac == ARGS_QWORD ? MDOC_MAX :
678: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 679:
1.150 schwarze 680: if (ntok == MDOC_MAX) {
681: dword(mdoc, line, lastarg, p, DELIM_MAX,
682: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 683: continue;
684: }
1.1 kristaps 685:
1.186 schwarze 686: if (n != NULL)
687: rew_last(mdoc, n);
1.122 schwarze 688: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 689: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 690: break;
1.1 kristaps 691: }
692:
1.166 schwarze 693: if (n != NULL)
694: rew_pending(mdoc, n);
1.150 schwarze 695: if (nl)
696: append_delims(mdoc, line, pos, buf);
1.1 kristaps 697: }
698:
1.151 schwarze 699: static void
1.1 kristaps 700: in_line(MACRO_PROT_ARGS)
701: {
1.144 schwarze 702: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.185 schwarze 703: int ntok;
1.55 kristaps 704: enum margserr ac;
1.67 schwarze 705: enum mdelim d;
1.53 kristaps 706: struct mdoc_arg *arg;
707: char *p;
1.1 kristaps 708:
1.119 schwarze 709: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 710:
1.4 kristaps 711: /*
712: * Whether we allow ignored elements (those without content,
713: * usually because of reserved words) to squeak by.
714: */
1.45 kristaps 715:
1.4 kristaps 716: switch (tok) {
1.131 schwarze 717: case MDOC_An:
1.26 kristaps 718: /* FALLTHROUGH */
1.131 schwarze 719: case MDOC_Ar:
1.4 kristaps 720: /* FALLTHROUGH */
1.131 schwarze 721: case MDOC_Fl:
1.4 kristaps 722: /* FALLTHROUGH */
1.131 schwarze 723: case MDOC_Mt:
1.12 kristaps 724: /* FALLTHROUGH */
1.131 schwarze 725: case MDOC_Nm:
1.26 kristaps 726: /* FALLTHROUGH */
1.131 schwarze 727: case MDOC_Pa:
1.4 kristaps 728: nc = 1;
729: break;
730: default:
731: nc = 0;
732: break;
733: }
734:
1.152 schwarze 735: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 736:
1.144 schwarze 737: d = DELIM_NONE;
738: firstarg = 1;
1.142 schwarze 739: mayopen = 1;
1.70 kristaps 740: for (cnt = scope = 0;; ) {
1.1 kristaps 741: la = *pos;
1.119 schwarze 742: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 743:
1.144 schwarze 744: /*
745: * At the end of a macro line,
746: * opening delimiters do not suppress spacing.
747: */
748:
749: if (ac == ARGS_EOLN) {
750: if (d == DELIM_OPEN)
751: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 752: break;
1.144 schwarze 753: }
754:
755: /*
756: * The rest of the macro line is only punctuation,
757: * to be handled by append_delims().
758: * If there were no other arguments,
759: * do not allow the first one to suppress spacing,
760: * even if it turns out to be a closing one.
761: */
762:
763: if (ac == ARGS_PUNCT) {
1.176 schwarze 764: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144 schwarze 765: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 766: break;
1.144 schwarze 767: }
1.1 kristaps 768:
1.145 schwarze 769: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155 schwarze 770: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 771:
1.131 schwarze 772: /*
1.4 kristaps 773: * In this case, we've located a submacro and must
774: * execute it. Close out scope, if open. If no
775: * elements have been generated, either create one (nc)
776: * or raise a warning.
777: */
1.1 kristaps 778:
1.150 schwarze 779: if (ntok != MDOC_MAX) {
1.149 schwarze 780: if (scope)
781: rew_elem(mdoc, tok);
1.150 schwarze 782: if (nc && ! cnt) {
783: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 784: rew_last(mdoc, mdoc->last);
1.150 schwarze 785: } else if ( ! nc && ! cnt) {
1.7 kristaps 786: mdoc_argv_free(arg);
1.135 schwarze 787: mandoc_msg(MANDOCERR_MACRO_EMPTY,
788: mdoc->parse, line, ppos,
789: mdoc_macronames[tok]);
1.7 kristaps 790: }
1.151 schwarze 791: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 792: if (nl)
793: append_delims(mdoc, line, pos, buf);
1.151 schwarze 794: return;
1.131 schwarze 795: }
1.1 kristaps 796:
1.131 schwarze 797: /*
1.4 kristaps 798: * Non-quote-enclosed punctuation. Set up our scope, if
799: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 800: * the word.
1.4 kristaps 801: */
1.1 kristaps 802:
1.150 schwarze 803: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 804:
1.70 kristaps 805: if (DELIM_NONE != d) {
806: /*
807: * If we encounter closing punctuation, no word
1.144 schwarze 808: * has been emitted, no scope is open, and we're
1.70 kristaps 809: * allowed to have an empty element, then start
1.142 schwarze 810: * a new scope.
1.70 kristaps 811: */
1.142 schwarze 812: if ((d == DELIM_CLOSE ||
813: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 814: !cnt && !scope && nc && mayopen) {
1.150 schwarze 815: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 816: scope = 1;
1.142 schwarze 817: cnt++;
1.150 schwarze 818: if (tok == MDOC_Nm)
1.142 schwarze 819: mayopen = 0;
1.70 kristaps 820: }
821: /*
822: * Close out our scope, if one is open, before
823: * any punctuation.
824: */
1.149 schwarze 825: if (scope)
826: rew_elem(mdoc, tok);
1.70 kristaps 827: scope = 0;
1.145 schwarze 828: if (tok == MDOC_Fn)
829: mayopen = 0;
1.142 schwarze 830: } else if (mayopen && !scope) {
1.150 schwarze 831: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 832: scope = 1;
1.142 schwarze 833: cnt++;
1.1 kristaps 834: }
1.105 kristaps 835:
1.150 schwarze 836: dword(mdoc, line, la, p, d,
837: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 838:
839: /*
1.144 schwarze 840: * If the first argument is a closing delimiter,
841: * do not suppress spacing before it.
842: */
843:
844: if (firstarg && d == DELIM_CLOSE && !nc)
845: mdoc->last->flags &= ~MDOC_DELIMC;
846: firstarg = 0;
847:
848: /*
1.39 kristaps 849: * `Fl' macros have their scope re-opened with each new
850: * word so that the `-' can be added to each one without
851: * having to parse out spaces.
852: */
1.150 schwarze 853: if (scope && tok == MDOC_Fl) {
1.149 schwarze 854: rew_elem(mdoc, tok);
1.70 kristaps 855: scope = 0;
1.39 kristaps 856: }
1.1 kristaps 857: }
858:
1.149 schwarze 859: if (scope)
860: rew_elem(mdoc, tok);
1.4 kristaps 861:
862: /*
863: * If no elements have been collected and we're allowed to have
864: * empties (nc), open a scope and close it out. Otherwise,
865: * raise a warning.
866: */
1.45 kristaps 867:
1.150 schwarze 868: if ( ! cnt) {
869: if (nc) {
870: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
871: rew_last(mdoc, mdoc->last);
872: } else {
873: mdoc_argv_free(arg);
874: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
875: line, ppos, mdoc_macronames[tok]);
876: }
1.7 kristaps 877: }
1.150 schwarze 878: if (nl)
879: append_delims(mdoc, line, pos, buf);
1.1 kristaps 880: }
881:
1.151 schwarze 882: static void
1.1 kristaps 883: blk_full(MACRO_PROT_ARGS)
884: {
1.153 schwarze 885: int la, nl, parsed;
1.1 kristaps 886: struct mdoc_arg *arg;
1.185 schwarze 887: struct roff_node *blk; /* Our own or a broken block. */
888: struct roff_node *head; /* Our own head. */
889: struct roff_node *body; /* Our own body. */
890: struct roff_node *n;
1.59 kristaps 891: enum margserr ac, lac;
1.1 kristaps 892: char *p;
893:
1.119 schwarze 894: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 895:
1.177 schwarze 896: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
897: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
898: line, ppos, mdoc_macronames[tok]);
899: return;
900: }
901:
1.171 schwarze 902: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
903:
904: /* Here, tok is one of Sh Ss Nm Nd It. */
905:
906: blk = NULL;
907: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 908: if (n->flags & MDOC_ENDED) {
909: if ( ! (n->flags & MDOC_VALID))
910: n->flags |= MDOC_BROKEN;
911: continue;
912: }
1.184 schwarze 913: if (n->type != ROFFT_BLOCK)
1.171 schwarze 914: continue;
1.183 schwarze 915:
1.171 schwarze 916: if (tok == MDOC_It && n->tok == MDOC_Bl) {
917: if (blk != NULL) {
918: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
919: mdoc->parse, line, ppos,
920: "It breaks %s",
921: mdoc_macronames[blk->tok]);
922: rew_pending(mdoc, blk);
923: }
924: break;
925: }
926:
927: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
928: switch (tok) {
929: case MDOC_Sh:
930: /* FALLTHROUGH */
931: case MDOC_Ss:
932: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
933: mdoc->parse, line, ppos,
934: "%s breaks %s",
935: mdoc_macronames[tok],
936: mdoc_macronames[n->tok]);
937: rew_pending(mdoc, n);
1.180 schwarze 938: n = mdoc->last;
1.171 schwarze 939: continue;
940: case MDOC_It:
941: /* Delay in case it's astray. */
942: blk = n;
943: continue;
944: default:
945: break;
946: }
947: break;
948: }
949:
950: /* Here, n is one of Sh Ss Nm Nd It. */
1.138 schwarze 951:
1.171 schwarze 952: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
953: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
954: (tok != MDOC_It && n->tok == MDOC_It)))))
1.138 schwarze 955: break;
1.171 schwarze 956:
957: /* Item breaking an explicit block. */
958:
959: if (blk != NULL) {
960: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
961: mdoc->parse, line, ppos,
962: "It breaks %s",
963: mdoc_macronames[blk->tok]);
964: rew_pending(mdoc, blk);
1.172 schwarze 965: blk = NULL;
1.171 schwarze 966: }
967:
968: /* Close out prior implicit scopes. */
969:
970: rew_last(mdoc, n);
971: }
972:
973: /* Skip items outside lists. */
974:
975: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138 schwarze 976: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
977: line, ppos, "It %s", buf + *pos);
1.150 schwarze 978: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 979: rew_elem(mdoc, MDOC_br);
1.151 schwarze 980: return;
1.138 schwarze 981: }
1.1 kristaps 982: }
983:
1.45 kristaps 984: /*
1.109 kristaps 985: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 986: * macro openings. Implicit ones first close out prior scope
987: * (seen above). Delay opening the head until necessary to
988: * allow leading punctuation to print. Special consideration
989: * for `It -column', which has phrase-part syntax instead of
990: * regular child nodes.
991: */
992:
1.152 schwarze 993: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 schwarze 994: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 995: head = body = NULL;
1.115 schwarze 996:
997: /*
998: * Exception: Heads of `It' macros in `-diag' lists are not
999: * parsed, even though `It' macros in general are parsed.
1000: */
1.151 schwarze 1001:
1.153 schwarze 1002: parsed = tok != MDOC_It ||
1003: mdoc->last->parent->tok != MDOC_Bl ||
1004: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 1005:
1.45 kristaps 1006: /*
1007: * The `Nd' macro has all arguments in its body: it's a hybrid
1008: * of block partial-explicit and full-implicit. Stupid.
1009: */
1.19 kristaps 1010:
1.150 schwarze 1011: if (tok == MDOC_Nd) {
1012: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 1013: rew_last(mdoc, head);
1.150 schwarze 1014: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 1015: }
1016:
1.150 schwarze 1017: if (tok == MDOC_Bk)
1.123 schwarze 1018: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1019:
1.150 schwarze 1020: ac = ARGS_PEND;
1021: for (;;) {
1.45 kristaps 1022: la = *pos;
1.150 schwarze 1023: lac = ac;
1.119 schwarze 1024: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1025: if (ac == ARGS_EOLN) {
1026: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 1027: break;
1028: /*
1029: * This is necessary: if the last token on a
1030: * line is a `Ta' or tab, then we'll get
1031: * ARGS_EOLN, so we must be smart enough to
1032: * reopen our scope if the last parse was a
1033: * phrase or partial phrase.
1034: */
1.167 schwarze 1035: if (body != NULL)
1036: rew_last(mdoc, body);
1.150 schwarze 1037: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1038: break;
1.75 kristaps 1039: }
1.174 schwarze 1040: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1041: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1042: mdoc->parse, line, la, "%s ... %s",
1043: mdoc_macronames[tok], buf + la);
1044: break;
1045: }
1.173 schwarze 1046: if (tok == MDOC_Rs) {
1047: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1048: line, la, "Rs %s", buf + la);
1049: break;
1050: }
1051: if (ac == ARGS_PUNCT)
1052: break;
1.45 kristaps 1053:
1.131 schwarze 1054: /*
1.73 kristaps 1055: * Emit leading punctuation (i.e., punctuation before
1.184 schwarze 1056: * the ROFFT_HEAD) for non-phrase types.
1.73 kristaps 1057: */
1.45 kristaps 1058:
1.150 schwarze 1059: if (head == NULL &&
1060: ac != ARGS_PEND &&
1061: ac != ARGS_PHRASE &&
1062: ac != ARGS_PPHRASE &&
1063: ac != ARGS_QWORD &&
1064: mdoc_isdelim(p) == DELIM_OPEN) {
1065: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1066: continue;
1067: }
1068:
1.74 kristaps 1069: /* Open a head if one hasn't been opened. */
1.45 kristaps 1070:
1.150 schwarze 1071: if (head == NULL)
1072: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1073:
1.150 schwarze 1074: if (ac == ARGS_PHRASE ||
1075: ac == ARGS_PEND ||
1076: ac == ARGS_PPHRASE) {
1.151 schwarze 1077:
1.73 kristaps 1078: /*
1.74 kristaps 1079: * If we haven't opened a body yet, rewind the
1080: * head; if we have, rewind that instead.
1081: */
1082:
1.167 schwarze 1083: rew_last(mdoc, body == NULL ? head : body);
1.150 schwarze 1084: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1085:
1086: /*
1.73 kristaps 1087: * Process phrases: set whether we're in a
1088: * partial-phrase (this effects line handling)
1089: * then call down into the phrase parser.
1090: */
1.74 kristaps 1091:
1.150 schwarze 1092: if (ac == ARGS_PPHRASE)
1.119 schwarze 1093: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1094: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1095: mdoc->flags |= MDOC_PPHRASE;
1.154 schwarze 1096: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1097: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1098: continue;
1099: }
1100:
1.153 schwarze 1101: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1102: break;
1.45 kristaps 1103: }
1.1 kristaps 1104:
1.165 schwarze 1105: if (blk->flags & MDOC_VALID)
1106: return;
1.150 schwarze 1107: if (head == NULL)
1108: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.174 schwarze 1109: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150 schwarze 1110: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1111: if (body != NULL)
1.77 kristaps 1112: goto out;
1.187 ! schwarze 1113: if (find_pending(mdoc, tok, line, ppos, head))
1.183 schwarze 1114: return;
1.47 kristaps 1115:
1.45 kristaps 1116: /* Close out scopes to remain in a consistent state. */
1117:
1.167 schwarze 1118: rew_last(mdoc, head);
1119: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1120: out:
1.150 schwarze 1121: if (mdoc->flags & MDOC_FREECOL) {
1.167 schwarze 1122: rew_last(mdoc, body);
1123: rew_last(mdoc, blk);
1.150 schwarze 1124: mdoc->flags &= ~MDOC_FREECOL;
1125: }
1.1 kristaps 1126: }
1127:
1.151 schwarze 1128: static void
1.1 kristaps 1129: blk_part_imp(MACRO_PROT_ARGS)
1130: {
1.63 kristaps 1131: int la, nl;
1.55 kristaps 1132: enum margserr ac;
1.1 kristaps 1133: char *p;
1.185 schwarze 1134: struct roff_node *blk; /* saved block context */
1135: struct roff_node *body; /* saved body context */
1136: struct roff_node *n;
1.1 kristaps 1137:
1.119 schwarze 1138: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1139:
1.43 kristaps 1140: /*
1141: * A macro that spans to the end of the line. This is generally
1142: * (but not necessarily) called as the first macro. The block
1143: * has a head as the immediate child, which is always empty,
1144: * followed by zero or more opening punctuation nodes, then the
1145: * body (which may be empty, depending on the macro), then zero
1146: * or more closing punctuation nodes.
1147: */
1.32 kristaps 1148:
1.150 schwarze 1149: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.162 schwarze 1150: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1151:
1.43 kristaps 1152: /*
1153: * Open the body scope "on-demand", that is, after we've
1154: * processed all our the leading delimiters (open parenthesis,
1155: * etc.).
1156: */
1.1 kristaps 1157:
1.43 kristaps 1158: for (body = NULL; ; ) {
1.32 kristaps 1159: la = *pos;
1.119 schwarze 1160: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1161: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1162: break;
1163:
1.150 schwarze 1164: if (body == NULL && ac != ARGS_QWORD &&
1165: mdoc_isdelim(p) == DELIM_OPEN) {
1166: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1167: continue;
1.123 schwarze 1168: }
1.1 kristaps 1169:
1.150 schwarze 1170: if (body == NULL)
1171: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1172:
1.153 schwarze 1173: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1174: break;
1.1 kristaps 1175: }
1.150 schwarze 1176: if (body == NULL)
1177: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1178:
1.187 ! schwarze 1179: if (find_pending(mdoc, tok, line, ppos, body))
1.183 schwarze 1180: return;
1181:
1.164 schwarze 1182: rew_last(mdoc, body);
1.150 schwarze 1183: if (nl)
1184: append_delims(mdoc, line, pos, buf);
1.166 schwarze 1185: rew_pending(mdoc, blk);
1.117 schwarze 1186:
1187: /* Move trailing .Ns out of scope. */
1188:
1189: for (n = body->child; n && n->next; n = n->next)
1190: /* Do nothing. */ ;
1.150 schwarze 1191: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1192: mdoc_node_relink(mdoc, n);
1.1 kristaps 1193: }
1194:
1.151 schwarze 1195: static void
1.1 kristaps 1196: blk_part_exp(MACRO_PROT_ARGS)
1197: {
1.60 kristaps 1198: int la, nl;
1.55 kristaps 1199: enum margserr ac;
1.185 schwarze 1200: struct roff_node *head; /* keep track of head */
1.1 kristaps 1201: char *p;
1202:
1.119 schwarze 1203: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1204:
1.43 kristaps 1205: /*
1206: * The opening of an explicit macro having zero or more leading
1207: * punctuation nodes; a head with optional single element (the
1208: * case of `Eo'); and a body that may be empty.
1209: */
1.32 kristaps 1210:
1.150 schwarze 1211: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163 schwarze 1212: head = NULL;
1213: for (;;) {
1.32 kristaps 1214: la = *pos;
1.119 schwarze 1215: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1216: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1217: break;
1.43 kristaps 1218:
1219: /* Flush out leading punctuation. */
1220:
1.150 schwarze 1221: if (head == NULL && ac != ARGS_QWORD &&
1222: mdoc_isdelim(p) == DELIM_OPEN) {
1223: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1224: continue;
1.123 schwarze 1225: }
1.43 kristaps 1226:
1.150 schwarze 1227: if (head == NULL) {
1228: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1229: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1230: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1231: rew_last(mdoc, head);
1232: mdoc_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1233: if (tok == MDOC_Eo)
1.43 kristaps 1234: continue;
1.1 kristaps 1235: }
1.43 kristaps 1236:
1.153 schwarze 1237: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1238: break;
1.1 kristaps 1239: }
1240:
1.43 kristaps 1241: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1242:
1.163 schwarze 1243: if (head == NULL) {
1244: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.150 schwarze 1245: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1246: }
1.150 schwarze 1247: if (nl)
1248: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1249: }
1250:
1.151 schwarze 1251: static void
1.1 kristaps 1252: in_line_argn(MACRO_PROT_ARGS)
1253: {
1.53 kristaps 1254: struct mdoc_arg *arg;
1255: char *p;
1.181 schwarze 1256: enum margserr ac;
1.185 schwarze 1257: int ntok;
1.181 schwarze 1258: int state; /* arg#; -1: not yet open; -2: closed */
1259: int la, maxargs, nl;
1.1 kristaps 1260:
1.156 schwarze 1261: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1262:
1.46 kristaps 1263: /*
1264: * A line macro that has a fixed number of arguments (maxargs).
1265: * Only open the scope once the first non-leading-punctuation is
1266: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1267: * keep it open until the maximum number of arguments are
1268: * exhausted.
1269: */
1.1 kristaps 1270:
1271: switch (tok) {
1.131 schwarze 1272: case MDOC_Ap:
1.1 kristaps 1273: /* FALLTHROUGH */
1.131 schwarze 1274: case MDOC_Ns:
1.1 kristaps 1275: /* FALLTHROUGH */
1.131 schwarze 1276: case MDOC_Ux:
1.1 kristaps 1277: maxargs = 0;
1278: break;
1.131 schwarze 1279: case MDOC_Bx:
1.101 kristaps 1280: /* FALLTHROUGH */
1.132 schwarze 1281: case MDOC_Es:
1282: /* FALLTHROUGH */
1.131 schwarze 1283: case MDOC_Xr:
1.42 kristaps 1284: maxargs = 2;
1285: break;
1.1 kristaps 1286: default:
1287: maxargs = 1;
1288: break;
1289: }
1290:
1.152 schwarze 1291: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1292:
1.181 schwarze 1293: state = -1;
1.156 schwarze 1294: p = NULL;
1295: for (;;) {
1.32 kristaps 1296: la = *pos;
1.119 schwarze 1297: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181 schwarze 1298:
1299: if (ac == ARGS_WORD && state == -1 &&
1300: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1301: mdoc_isdelim(p) == DELIM_OPEN) {
1302: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1303: continue;
1304: }
1305:
1306: if (state == -1 && tok != MDOC_In &&
1307: tok != MDOC_St && tok != MDOC_Xr) {
1308: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1309: state = 0;
1310: }
1311:
1.156 schwarze 1312: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181 schwarze 1313: if (abs(state) < 2 && tok == MDOC_Pf)
1.156 schwarze 1314: mandoc_vmsg(MANDOCERR_PF_SKIP,
1315: mdoc->parse, line, ppos, "Pf %s",
1316: p == NULL ? "at eol" : p);
1.1 kristaps 1317: break;
1.156 schwarze 1318: }
1.1 kristaps 1319:
1.181 schwarze 1320: if (state == maxargs) {
1.149 schwarze 1321: rew_elem(mdoc, tok);
1.181 schwarze 1322: state = -2;
1.46 kristaps 1323: }
1324:
1.181 schwarze 1325: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.156 schwarze 1326: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1327:
1.150 schwarze 1328: if (ntok != MDOC_MAX) {
1.181 schwarze 1329: if (state >= 0) {
1.149 schwarze 1330: rew_elem(mdoc, tok);
1.181 schwarze 1331: state = -2;
1332: }
1.151 schwarze 1333: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1334: break;
1335: }
1336:
1.181 schwarze 1337: if (ac == ARGS_QWORD ||
1338: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1339: mdoc_isdelim(p) == DELIM_NONE) {
1340: if (state == -1) {
1341: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1342: state = 1;
1343: } else if (state >= 0)
1344: state++;
1345: } else if (state >= 0) {
1.149 schwarze 1346: rew_elem(mdoc, tok);
1.181 schwarze 1347: state = -2;
1.1 kristaps 1348: }
1.42 kristaps 1349:
1.150 schwarze 1350: dword(mdoc, line, la, p, DELIM_MAX,
1351: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1352: }
1353:
1.181 schwarze 1354: if (state == -1) {
1355: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1356: line, ppos, mdoc_macronames[tok]);
1357: return;
1.156 schwarze 1358: }
1.181 schwarze 1359:
1360: if (state == 0 && tok == MDOC_Pf)
1361: append_delims(mdoc, line, pos, buf);
1362: if (state >= 0)
1.149 schwarze 1363: rew_elem(mdoc, tok);
1.150 schwarze 1364: if (nl)
1365: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1366: }
1367:
1.151 schwarze 1368: static void
1.1 kristaps 1369: in_line_eoln(MACRO_PROT_ARGS)
1370: {
1.185 schwarze 1371: struct roff_node *n;
1.170 schwarze 1372: struct mdoc_arg *arg;
1.1 kristaps 1373:
1.170 schwarze 1374: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1375: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1376: n = mdoc->last;
1377: if (mdoc->next == MDOC_NEXT_SIBLING)
1378: n = n->parent;
1379: if (n->tok == MDOC_Nm)
1380: rew_last(mdoc, mdoc->last->parent);
1.178 schwarze 1381: }
1382:
1.179 schwarze 1383: if (buf[*pos] == '\0' &&
1384: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178 schwarze 1385: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179 schwarze 1386: line, ppos, mdoc_macronames[tok]);
1.178 schwarze 1387: return;
1.170 schwarze 1388: }
1.90 schwarze 1389:
1.152 schwarze 1390: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1391: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1392: if (parse_rest(mdoc, tok, line, pos, buf))
1393: return;
1394: rew_elem(mdoc, tok);
1395: }
1396:
1397: /*
1398: * The simplest argument parser available: Parse the remaining
1399: * words until the end of the phrase or line and return 0
1400: * or until the next macro, call that macro, and return 1.
1401: */
1402: static int
1.185 schwarze 1403: parse_rest(struct mdoc *mdoc, int tok, int line, int *pos, char *buf)
1.154 schwarze 1404: {
1405: int la;
1.1 kristaps 1406:
1407: for (;;) {
1408: la = *pos;
1.153 schwarze 1409: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1410: return(0);
1.153 schwarze 1411: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1412: return(1);
1.1 kristaps 1413: }
1414: }
1415:
1.151 schwarze 1416: static void
1.41 kristaps 1417: ctx_synopsis(MACRO_PROT_ARGS)
1418: {
1.60 kristaps 1419:
1.151 schwarze 1420: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1421: in_line(mdoc, tok, line, ppos, pos, buf);
1422: else if (tok == MDOC_Nm)
1423: blk_full(mdoc, tok, line, ppos, pos, buf);
1424: else {
1425: assert(tok == MDOC_Vt);
1426: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1427: }
1.1 kristaps 1428: }
1429:
1.24 kristaps 1430: /*
1431: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1432: * They're unusual because they're basically free-form text until a
1433: * macro is encountered.
1434: */
1.151 schwarze 1435: static void
1.75 kristaps 1436: phrase_ta(MACRO_PROT_ARGS)
1437: {
1.185 schwarze 1438: struct roff_node *body, *n;
1.75 kristaps 1439:
1.121 schwarze 1440: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1441:
1.167 schwarze 1442: body = NULL;
1443: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 1444: if (n->flags & MDOC_ENDED)
1.167 schwarze 1445: continue;
1.184 schwarze 1446: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167 schwarze 1447: body = n;
1448: if (n->tok == MDOC_Bl)
1449: break;
1450: }
1451:
1.151 schwarze 1452: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1453: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1454: line, ppos, "Ta");
1.151 schwarze 1455: return;
1.121 schwarze 1456: }
1.75 kristaps 1457:
1.121 schwarze 1458: /* Advance to the next column. */
1.150 schwarze 1459:
1.167 schwarze 1460: rew_last(mdoc, body);
1.150 schwarze 1461: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 schwarze 1462: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1463: }
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