Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.145
1.145 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.144 2015/04/05 23:04:22 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: *
1.140 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.2 schwarze 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.140 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.2 schwarze 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:
1.140 schwarze 27: #include "mandoc.h"
28: #include "roff.h"
1.66 schwarze 29: #include "mdoc.h"
1.140 schwarze 30: #include "libmandoc.h"
1.1 kristaps 31: #include "libmdoc.h"
32:
1.107 schwarze 33: static void blk_full(MACRO_PROT_ARGS);
34: static void blk_exp_close(MACRO_PROT_ARGS);
35: static void blk_part_exp(MACRO_PROT_ARGS);
36: static void blk_part_imp(MACRO_PROT_ARGS);
37: static void ctx_synopsis(MACRO_PROT_ARGS);
38: static void in_line_eoln(MACRO_PROT_ARGS);
39: static void in_line_argn(MACRO_PROT_ARGS);
40: static void in_line(MACRO_PROT_ARGS);
41: static void phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 42:
1.145 ! schwarze 43: static void append_delims(struct roff_man *, int, int *, char *);
! 44: static void dword(struct roff_man *, int, int, const char *,
1.143 schwarze 45: enum mdelim, int);
1.145 ! schwarze 46: static int find_pending(struct roff_man *, int, int, int,
1.143 schwarze 47: struct roff_node *);
1.145 ! schwarze 48: static int lookup(struct roff_man *, int, int, int, const char *);
1.109 schwarze 49: static int macro_or_word(MACRO_PROT_ARGS, int);
1.145 ! schwarze 50: static int parse_rest(struct roff_man *, int, int, int *, char *);
1.141 schwarze 51: static int rew_alt(int);
1.145 ! schwarze 52: static void rew_elem(struct roff_man *, int);
! 53: static void rew_last(struct roff_man *, const struct roff_node *);
! 54: static void rew_pending(struct roff_man *,
! 55: const struct roff_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
1.145 ! schwarze 210: mdoc_macroend(struct roff_man *mdoc)
1.1 kristaps 211: {
1.141 schwarze 212: struct roff_node *n;
1.1 kristaps 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)
1.140 schwarze 220: if (n->type == ROFFT_BLOCK &&
1.107 schwarze 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: */
1.141 schwarze 234: static int
1.145 ! schwarze 235: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.21 schwarze 236: {
1.141 schwarze 237: int 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
1.145 ! schwarze 256: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1 kristaps 257: {
1.141 schwarze 258: struct roff_node *n, *np;
1.1 kristaps 259:
1.142 schwarze 260: if (to->flags & MDOC_VALID)
261: return;
262:
1.145 ! schwarze 263: mdoc->next = ROFF_NEXT_SIBLING;
1.1 kristaps 264: while (mdoc->last != to) {
1.63 schwarze 265: /*
266: * Save the parent here, because we may delete the
1.76 schwarze 267: * mdoc->last node in the post-validation phase and reset
268: * it to mdoc->last->parent, causing a step in the closing
1.63 schwarze 269: * out to be lost.
270: */
271: np = mdoc->last->parent;
1.105 schwarze 272: mdoc_valid_post(mdoc);
1.61 schwarze 273: n = mdoc->last;
1.63 schwarze 274: mdoc->last = np;
1.1 kristaps 275: assert(mdoc->last);
1.61 schwarze 276: mdoc->last->last = n;
1.1 kristaps 277: }
1.105 schwarze 278: mdoc_valid_post(mdoc);
1.1 kristaps 279: }
280:
1.22 schwarze 281: /*
1.122 schwarze 282: * Rewind up to a specific block, including all blocks that broke it.
283: */
284: static void
1.145 ! schwarze 285: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.122 schwarze 286: {
287:
1.139 schwarze 288: for (;;) {
289: rew_last(mdoc, n);
290:
291: switch (n->type) {
1.140 schwarze 292: case ROFFT_HEAD:
1.139 schwarze 293: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
294: return;
1.140 schwarze 295: case ROFFT_BLOCK:
1.139 schwarze 296: break;
297: default:
298: return;
299: }
1.122 schwarze 300:
1.139 schwarze 301: if ( ! (n->flags & MDOC_BROKEN))
302: return;
1.122 schwarze 303:
1.139 schwarze 304: for (;;) {
305: if ((n = n->parent) == NULL)
306: return;
307:
1.140 schwarze 308: if (n->type == ROFFT_BLOCK ||
309: n->type == ROFFT_HEAD) {
1.139 schwarze 310: if (n->flags & MDOC_ENDED)
311: break;
312: else
313: return;
314: }
315: }
1.122 schwarze 316: }
317: }
318:
319: /*
1.48 schwarze 320: * For a block closing macro, return the corresponding opening one.
321: * Otherwise, return the macro itself.
1.22 schwarze 322: */
1.141 schwarze 323: static int
324: rew_alt(int tok)
1.1 kristaps 325: {
326: switch (tok) {
1.88 schwarze 327: case MDOC_Ac:
1.1 kristaps 328: return(MDOC_Ao);
1.88 schwarze 329: case MDOC_Bc:
1.1 kristaps 330: return(MDOC_Bo);
1.88 schwarze 331: case MDOC_Brc:
1.1 kristaps 332: return(MDOC_Bro);
1.88 schwarze 333: case MDOC_Dc:
1.1 kristaps 334: return(MDOC_Do);
1.88 schwarze 335: case MDOC_Ec:
1.1 kristaps 336: return(MDOC_Eo);
1.88 schwarze 337: case MDOC_Ed:
1.1 kristaps 338: return(MDOC_Bd);
1.88 schwarze 339: case MDOC_Ef:
1.1 kristaps 340: return(MDOC_Bf);
1.88 schwarze 341: case MDOC_Ek:
1.1 kristaps 342: return(MDOC_Bk);
1.88 schwarze 343: case MDOC_El:
1.1 kristaps 344: return(MDOC_Bl);
1.88 schwarze 345: case MDOC_Fc:
1.1 kristaps 346: return(MDOC_Fo);
1.88 schwarze 347: case MDOC_Oc:
1.1 kristaps 348: return(MDOC_Oo);
1.88 schwarze 349: case MDOC_Pc:
1.1 kristaps 350: return(MDOC_Po);
1.88 schwarze 351: case MDOC_Qc:
1.1 kristaps 352: return(MDOC_Qo);
1.88 schwarze 353: case MDOC_Re:
1.1 kristaps 354: return(MDOC_Rs);
1.88 schwarze 355: case MDOC_Sc:
1.1 kristaps 356: return(MDOC_So);
1.88 schwarze 357: case MDOC_Xc:
1.1 kristaps 358: return(MDOC_Xo);
359: default:
1.48 schwarze 360: return(tok);
1.1 kristaps 361: }
362: /* NOTREACHED */
363: }
364:
1.105 schwarze 365: static void
1.145 ! schwarze 366: rew_elem(struct roff_man *mdoc, int tok)
1.1 kristaps 367: {
1.141 schwarze 368: struct roff_node *n;
1.1 kristaps 369:
370: n = mdoc->last;
1.140 schwarze 371: if (n->type != ROFFT_ELEM)
1.1 kristaps 372: n = n->parent;
1.140 schwarze 373: assert(n->type == ROFFT_ELEM);
1.1 kristaps 374: assert(tok == n->tok);
1.105 schwarze 375: rew_last(mdoc, n);
1.1 kristaps 376: }
377:
1.47 schwarze 378: /*
1.143 schwarze 379: * If there is an open sub-block of the target requiring
380: * explicit close-out, postpone closing out the target until
381: * the rew_pending() call closing out the sub-block.
382: */
383: static int
1.145 ! schwarze 384: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.143 schwarze 385: struct roff_node *target)
386: {
387: struct roff_node *n;
388: int irc;
389:
390: irc = 0;
391: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
392: if (n->flags & MDOC_ENDED) {
393: if ( ! (n->flags & MDOC_VALID))
394: n->flags |= MDOC_BROKEN;
395: continue;
396: }
397: if (n->type == ROFFT_BLOCK &&
398: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
399: irc = 1;
400: n->flags = MDOC_BROKEN;
401: if (target->type == ROFFT_HEAD)
402: target->flags = MDOC_ENDED;
403: else if ( ! (target->flags & MDOC_ENDED)) {
404: mandoc_vmsg(MANDOCERR_BLK_NEST,
405: mdoc->parse, line, ppos,
406: "%s breaks %s", mdoc_macronames[tok],
407: mdoc_macronames[n->tok]);
408: mdoc_endbody_alloc(mdoc, line, ppos,
409: tok, target, ENDBODY_NOSPACE);
410: }
411: }
412: }
413: return(irc);
414: }
415:
416: /*
1.66 schwarze 417: * Allocate a word and check whether it's punctuation or not.
418: * Punctuation consists of those tokens found in mdoc_isdelim().
419: */
1.106 schwarze 420: static void
1.145 ! schwarze 421: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.80 schwarze 422: enum mdelim d, int may_append)
1.66 schwarze 423: {
1.88 schwarze 424:
1.106 schwarze 425: if (d == DELIM_MAX)
1.66 schwarze 426: d = mdoc_isdelim(p);
427:
1.80 schwarze 428: if (may_append &&
1.106 schwarze 429: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.140 schwarze 430: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.106 schwarze 431: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.80 schwarze 432: mdoc_word_append(mdoc, p);
1.106 schwarze 433: return;
1.80 schwarze 434: }
435:
1.106 schwarze 436: mdoc_word_alloc(mdoc, line, col, p);
1.66 schwarze 437:
1.71 schwarze 438: /*
1.100 schwarze 439: * If the word consists of a bare delimiter,
440: * flag the new node accordingly,
441: * unless doing so was vetoed by the invoking macro.
442: * Always clear the veto, it is only valid for one word.
1.71 schwarze 443: */
444:
1.100 schwarze 445: if (d == DELIM_OPEN)
446: mdoc->last->flags |= MDOC_DELIMO;
447: else if (d == DELIM_CLOSE &&
448: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 449: mdoc->last->parent->tok != MDOC_Fd)
1.76 schwarze 450: mdoc->last->flags |= MDOC_DELIMC;
1.100 schwarze 451: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 452: }
1.1 kristaps 453:
1.106 schwarze 454: static void
1.145 ! schwarze 455: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1 kristaps 456: {
1.109 schwarze 457: char *p;
1.42 schwarze 458: int la;
1.1 kristaps 459:
1.106 schwarze 460: if (buf[*pos] == '\0')
461: return;
1.1 kristaps 462:
463: for (;;) {
1.42 schwarze 464: la = *pos;
1.109 schwarze 465: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 466: break;
1.80 schwarze 467: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 468:
1.42 schwarze 469: /*
470: * If we encounter end-of-sentence symbols, then trigger
471: * the double-space.
472: *
1.68 schwarze 473: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 474: * the last symbol, such that `. )' will cause the
475: * correct double-spacing. However, (1) groff isn't
476: * smart enough to do this and (2) it would require
477: * knowing which symbols break this behaviour, for
1.68 schwarze 478: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 479: */
1.106 schwarze 480:
1.84 schwarze 481: if (mandoc_eos(p, strlen(p)))
1.76 schwarze 482: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 483: }
484: }
485:
486: /*
1.109 schwarze 487: * Parse one word.
488: * If it is a macro, call it and return 1.
489: * Otherwise, allocate it and return 0.
490: */
491: static int
492: macro_or_word(MACRO_PROT_ARGS, int parsed)
493: {
494: char *p;
1.141 schwarze 495: int ntok;
1.109 schwarze 496:
497: p = buf + ppos;
498: ntok = MDOC_MAX;
1.113 schwarze 499: if (*p == '"')
1.109 schwarze 500: p++;
1.113 schwarze 501: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 502: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 503:
504: if (ntok == MDOC_MAX) {
505: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
506: mdoc_macros[tok].flags & MDOC_JOIN);
507: return(0);
508: } else {
509: if (mdoc_macros[tok].fp == in_line_eoln)
510: rew_elem(mdoc, tok);
511: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
512: if (tok == MDOC_MAX)
513: append_delims(mdoc, line, pos, buf);
514: return(1);
515: }
516: }
517:
518: /*
1.88 schwarze 519: * Close out block partial/full explicit.
1.1 kristaps 520: */
1.107 schwarze 521: static void
1.1 kristaps 522: blk_exp_close(MACRO_PROT_ARGS)
523: {
1.141 schwarze 524: struct roff_node *body; /* Our own body. */
525: struct roff_node *endbody; /* Our own end marker. */
526: struct roff_node *itblk; /* An It block starting later. */
527: struct roff_node *later; /* A sub-block starting later. */
528: struct roff_node *n; /* Search back to our block. */
1.144 schwarze 529: struct roff_node *target; /* For find_pending(). */
1.47 schwarze 530:
1.144 schwarze 531: int j, lastarg, maxargs, nl, pending;
1.36 schwarze 532: enum margserr ac;
1.141 schwarze 533: int atok, ntok;
1.1 kristaps 534: char *p;
535:
1.76 schwarze 536: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 537:
1.1 kristaps 538: switch (tok) {
1.88 schwarze 539: case MDOC_Ec:
1.1 kristaps 540: maxargs = 1;
541: break;
1.88 schwarze 542: case MDOC_Ek:
1.82 schwarze 543: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 544: /* FALLTHROUGH */
1.1 kristaps 545: default:
546: maxargs = 0;
547: break;
548: }
549:
1.47 schwarze 550: /*
551: * Search backwards for beginnings of blocks,
552: * both of our own and of pending sub-blocks.
553: */
1.107 schwarze 554:
1.47 schwarze 555: atok = rew_alt(tok);
1.127 schwarze 556: body = endbody = itblk = later = NULL;
1.76 schwarze 557: for (n = mdoc->last; n; n = n->parent) {
1.139 schwarze 558: if (n->flags & MDOC_ENDED) {
559: if ( ! (n->flags & MDOC_VALID))
560: n->flags |= MDOC_BROKEN;
1.47 schwarze 561: continue;
1.139 schwarze 562: }
1.47 schwarze 563:
564: /* Remember the start of our own body. */
1.107 schwarze 565:
1.140 schwarze 566: if (n->type == ROFFT_BODY && atok == n->tok) {
1.131 schwarze 567: if (n->end == ENDBODY_NOT)
1.47 schwarze 568: body = n;
569: continue;
570: }
571:
1.140 schwarze 572: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.47 schwarze 573: continue;
1.116 schwarze 574:
575: if (n->tok == MDOC_It) {
1.127 schwarze 576: itblk = n;
1.116 schwarze 577: continue;
578: }
579:
1.47 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: */
1.107 schwarze 588:
1.116 schwarze 589: if (later == NULL ||
1.127 schwarze 590: (tok == MDOC_El && itblk == NULL))
1.47 schwarze 591: break;
592:
1.88 schwarze 593: /*
1.123 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.
1.47 schwarze 597: * Mark the place where the formatting - but not
598: * the scope - of the current block ends.
599: */
1.107 schwarze 600:
1.139 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:
1.122 schwarze 606: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.106 schwarze 607: atok, body, ENDBODY_SPACE);
1.107 schwarze 608:
1.139 schwarze 609: if (tok == MDOC_El)
610: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
611:
1.107 schwarze 612: /*
613: * If a block closing macro taking arguments
614: * breaks another block, put the arguments
1.122 schwarze 615: * into the end marker.
1.107 schwarze 616: */
617:
1.122 schwarze 618: if (maxargs)
1.145 ! schwarze 619: mdoc->next = ROFF_NEXT_CHILD;
1.47 schwarze 620: break;
1.138 schwarze 621: }
622:
623: /* Explicit blocks close out description lines. */
624:
625: if (n->tok == MDOC_Nd) {
626: rew_last(mdoc, n);
627: continue;
1.47 schwarze 628: }
629:
1.139 schwarze 630: /* Breaking an open sub block. */
1.107 schwarze 631:
1.139 schwarze 632: n->flags |= MDOC_BROKEN;
633: if (later == NULL)
1.47 schwarze 634: later = n;
635: }
1.122 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: }
1.47 schwarze 653:
1.106 schwarze 654: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
655: if (buf[*pos] != '\0')
1.93 schwarze 656: mandoc_vmsg(MANDOCERR_ARG_SKIP,
657: mdoc->parse, line, ppos,
658: "%s %s", mdoc_macronames[tok],
659: buf + *pos);
1.127 schwarze 660: if (endbody == NULL && n != NULL)
1.123 schwarze 661: rew_pending(mdoc, n);
1.107 schwarze 662: return;
1.1 kristaps 663: }
664:
1.122 schwarze 665: if (endbody != NULL)
666: n = endbody;
1.104 schwarze 667: for (j = 0; ; j++) {
1.1 kristaps 668: lastarg = *pos;
669:
1.142 schwarze 670: if (j == maxargs && n != NULL)
671: rew_last(mdoc, n);
1.1 kristaps 672:
1.76 schwarze 673: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 674: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 675: break;
676:
1.111 schwarze 677: ntok = ac == ARGS_QWORD ? MDOC_MAX :
678: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 679:
1.106 schwarze 680: if (ntok == MDOC_MAX) {
681: dword(mdoc, line, lastarg, p, DELIM_MAX,
682: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 683: continue;
684: }
1.1 kristaps 685:
1.142 schwarze 686: if (n != NULL)
687: rew_last(mdoc, n);
1.79 schwarze 688: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 689: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 690: break;
1.1 kristaps 691: }
692:
1.144 schwarze 693: if (n != NULL) {
694: if (n != mdoc->last && n->flags & MDOC_BROKEN) {
695: target = n;
696: do
697: target = target->parent;
698: while ( ! (target->flags & MDOC_ENDED));
699: pending = find_pending(mdoc, ntok, line, ppos,
700: target);
701: } else
702: pending = 0;
703: if ( ! pending)
704: rew_pending(mdoc, n);
705: }
1.106 schwarze 706: if (nl)
707: append_delims(mdoc, line, pos, buf);
1.1 kristaps 708: }
709:
1.107 schwarze 710: static void
1.1 kristaps 711: in_line(MACRO_PROT_ARGS)
712: {
1.100 schwarze 713: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.141 schwarze 714: int ntok;
1.36 schwarze 715: enum margserr ac;
1.40 schwarze 716: enum mdelim d;
1.36 schwarze 717: struct mdoc_arg *arg;
718: char *p;
1.1 kristaps 719:
1.76 schwarze 720: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 721:
1.1 kristaps 722: /*
723: * Whether we allow ignored elements (those without content,
724: * usually because of reserved words) to squeak by.
725: */
1.32 schwarze 726:
1.1 kristaps 727: switch (tok) {
1.88 schwarze 728: case MDOC_An:
1.19 schwarze 729: /* FALLTHROUGH */
1.88 schwarze 730: case MDOC_Ar:
1.1 kristaps 731: /* FALLTHROUGH */
1.88 schwarze 732: case MDOC_Fl:
1.1 kristaps 733: /* FALLTHROUGH */
1.88 schwarze 734: case MDOC_Mt:
1.18 schwarze 735: /* FALLTHROUGH */
1.88 schwarze 736: case MDOC_Nm:
1.19 schwarze 737: /* FALLTHROUGH */
1.88 schwarze 738: case MDOC_Pa:
1.1 kristaps 739: nc = 1;
740: break;
741: default:
742: nc = 0;
743: break;
744: }
745:
1.108 schwarze 746: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 747:
1.100 schwarze 748: d = DELIM_NONE;
749: firstarg = 1;
1.98 schwarze 750: mayopen = 1;
1.45 schwarze 751: for (cnt = scope = 0;; ) {
1.1 kristaps 752: la = *pos;
1.76 schwarze 753: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 754:
1.100 schwarze 755: /*
756: * At the end of a macro line,
757: * opening delimiters do not suppress spacing.
758: */
759:
760: if (ac == ARGS_EOLN) {
761: if (d == DELIM_OPEN)
762: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 763: break;
1.100 schwarze 764: }
765:
766: /*
767: * The rest of the macro line is only punctuation,
768: * to be handled by append_delims().
769: * If there were no other arguments,
770: * do not allow the first one to suppress spacing,
771: * even if it turns out to be a closing one.
772: */
773:
774: if (ac == ARGS_PUNCT) {
1.132 schwarze 775: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.100 schwarze 776: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 777: break;
1.100 schwarze 778: }
1.1 kristaps 779:
1.101 schwarze 780: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.111 schwarze 781: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 782:
1.88 schwarze 783: /*
1.1 kristaps 784: * In this case, we've located a submacro and must
785: * execute it. Close out scope, if open. If no
786: * elements have been generated, either create one (nc)
787: * or raise a warning.
788: */
789:
1.106 schwarze 790: if (ntok != MDOC_MAX) {
1.105 schwarze 791: if (scope)
792: rew_elem(mdoc, tok);
1.106 schwarze 793: if (nc && ! cnt) {
794: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 795: rew_last(mdoc, mdoc->last);
1.106 schwarze 796: } else if ( ! nc && ! cnt) {
1.1 kristaps 797: mdoc_argv_free(arg);
1.92 schwarze 798: mandoc_msg(MANDOCERR_MACRO_EMPTY,
799: mdoc->parse, line, ppos,
800: mdoc_macronames[tok]);
1.1 kristaps 801: }
1.107 schwarze 802: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 803: if (nl)
804: append_delims(mdoc, line, pos, buf);
1.107 schwarze 805: return;
1.88 schwarze 806: }
1.1 kristaps 807:
1.88 schwarze 808: /*
1.1 kristaps 809: * Non-quote-enclosed punctuation. Set up our scope, if
810: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 811: * the word.
1.1 kristaps 812: */
813:
1.106 schwarze 814: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 815:
1.45 schwarze 816: if (DELIM_NONE != d) {
817: /*
818: * If we encounter closing punctuation, no word
1.100 schwarze 819: * has been emitted, no scope is open, and we're
1.45 schwarze 820: * allowed to have an empty element, then start
1.98 schwarze 821: * a new scope.
1.45 schwarze 822: */
1.98 schwarze 823: if ((d == DELIM_CLOSE ||
824: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 825: !cnt && !scope && nc && mayopen) {
1.106 schwarze 826: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 827: scope = 1;
1.98 schwarze 828: cnt++;
1.106 schwarze 829: if (tok == MDOC_Nm)
1.98 schwarze 830: mayopen = 0;
1.45 schwarze 831: }
832: /*
833: * Close out our scope, if one is open, before
834: * any punctuation.
835: */
1.105 schwarze 836: if (scope)
837: rew_elem(mdoc, tok);
1.45 schwarze 838: scope = 0;
1.101 schwarze 839: if (tok == MDOC_Fn)
840: mayopen = 0;
1.98 schwarze 841: } else if (mayopen && !scope) {
1.106 schwarze 842: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 843: scope = 1;
1.98 schwarze 844: cnt++;
1.1 kristaps 845: }
1.66 schwarze 846:
1.106 schwarze 847: dword(mdoc, line, la, p, d,
848: MDOC_JOIN & mdoc_macros[tok].flags);
1.27 schwarze 849:
850: /*
1.100 schwarze 851: * If the first argument is a closing delimiter,
852: * do not suppress spacing before it.
853: */
854:
855: if (firstarg && d == DELIM_CLOSE && !nc)
856: mdoc->last->flags &= ~MDOC_DELIMC;
857: firstarg = 0;
858:
859: /*
1.27 schwarze 860: * `Fl' macros have their scope re-opened with each new
861: * word so that the `-' can be added to each one without
862: * having to parse out spaces.
863: */
1.106 schwarze 864: if (scope && tok == MDOC_Fl) {
1.105 schwarze 865: rew_elem(mdoc, tok);
1.45 schwarze 866: scope = 0;
1.27 schwarze 867: }
1.1 kristaps 868: }
869:
1.105 schwarze 870: if (scope)
871: rew_elem(mdoc, tok);
1.1 kristaps 872:
873: /*
874: * If no elements have been collected and we're allowed to have
875: * empties (nc), open a scope and close it out. Otherwise,
876: * raise a warning.
877: */
1.32 schwarze 878:
1.106 schwarze 879: if ( ! cnt) {
880: if (nc) {
881: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
882: rew_last(mdoc, mdoc->last);
883: } else {
884: mdoc_argv_free(arg);
885: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
886: line, ppos, mdoc_macronames[tok]);
887: }
1.1 kristaps 888: }
1.106 schwarze 889: if (nl)
890: append_delims(mdoc, line, pos, buf);
1.1 kristaps 891: }
892:
1.107 schwarze 893: static void
1.1 kristaps 894: blk_full(MACRO_PROT_ARGS)
895: {
1.109 schwarze 896: int la, nl, parsed;
1.1 kristaps 897: struct mdoc_arg *arg;
1.141 schwarze 898: struct roff_node *blk; /* Our own or a broken block. */
899: struct roff_node *head; /* Our own head. */
900: struct roff_node *body; /* Our own body. */
901: struct roff_node *n;
1.37 schwarze 902: enum margserr ac, lac;
1.1 kristaps 903: char *p;
904:
1.76 schwarze 905: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 906:
1.133 schwarze 907: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
908: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
909: line, ppos, mdoc_macronames[tok]);
910: return;
911: }
912:
1.127 schwarze 913: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
914:
915: /* Here, tok is one of Sh Ss Nm Nd It. */
916:
917: blk = NULL;
918: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 919: if (n->flags & MDOC_ENDED) {
920: if ( ! (n->flags & MDOC_VALID))
921: n->flags |= MDOC_BROKEN;
922: continue;
923: }
1.140 schwarze 924: if (n->type != ROFFT_BLOCK)
1.127 schwarze 925: continue;
1.139 schwarze 926:
1.127 schwarze 927: if (tok == MDOC_It && n->tok == MDOC_Bl) {
928: if (blk != NULL) {
929: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
930: mdoc->parse, line, ppos,
931: "It breaks %s",
932: mdoc_macronames[blk->tok]);
933: rew_pending(mdoc, blk);
934: }
935: break;
936: }
937:
938: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
939: switch (tok) {
940: case MDOC_Sh:
941: /* FALLTHROUGH */
942: case MDOC_Ss:
943: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
944: mdoc->parse, line, ppos,
945: "%s breaks %s",
946: mdoc_macronames[tok],
947: mdoc_macronames[n->tok]);
948: rew_pending(mdoc, n);
1.136 schwarze 949: n = mdoc->last;
1.127 schwarze 950: continue;
951: case MDOC_It:
952: /* Delay in case it's astray. */
953: blk = n;
954: continue;
955: default:
956: break;
957: }
958: break;
959: }
960:
961: /* Here, n is one of Sh Ss Nm Nd It. */
1.95 schwarze 962:
1.127 schwarze 963: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
964: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
965: (tok != MDOC_It && n->tok == MDOC_It)))))
1.95 schwarze 966: break;
1.127 schwarze 967:
968: /* Item breaking an explicit block. */
969:
970: if (blk != NULL) {
971: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
972: mdoc->parse, line, ppos,
973: "It breaks %s",
974: mdoc_macronames[blk->tok]);
975: rew_pending(mdoc, blk);
1.128 schwarze 976: blk = NULL;
1.127 schwarze 977: }
978:
979: /* Close out prior implicit scopes. */
980:
981: rew_last(mdoc, n);
982: }
983:
984: /* Skip items outside lists. */
985:
986: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.95 schwarze 987: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
988: line, ppos, "It %s", buf + *pos);
1.106 schwarze 989: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.105 schwarze 990: rew_elem(mdoc, MDOC_br);
1.107 schwarze 991: return;
1.95 schwarze 992: }
1.1 kristaps 993: }
994:
1.32 schwarze 995: /*
1.68 schwarze 996: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 997: * macro openings. Implicit ones first close out prior scope
998: * (seen above). Delay opening the head until necessary to
999: * allow leading punctuation to print. Special consideration
1000: * for `It -column', which has phrase-part syntax instead of
1001: * regular child nodes.
1002: */
1003:
1.108 schwarze 1004: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.121 schwarze 1005: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1006: head = body = NULL;
1.1 kristaps 1007:
1.32 schwarze 1008: /*
1.73 schwarze 1009: * Exception: Heads of `It' macros in `-diag' lists are not
1010: * parsed, even though `It' macros in general are parsed.
1011: */
1.107 schwarze 1012:
1.109 schwarze 1013: parsed = tok != MDOC_It ||
1014: mdoc->last->parent->tok != MDOC_Bl ||
1015: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1016:
1017: /*
1.32 schwarze 1018: * The `Nd' macro has all arguments in its body: it's a hybrid
1019: * of block partial-explicit and full-implicit. Stupid.
1020: */
1.12 schwarze 1021:
1.106 schwarze 1022: if (tok == MDOC_Nd) {
1023: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 1024: rew_last(mdoc, head);
1.106 schwarze 1025: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1026: }
1027:
1.106 schwarze 1028: if (tok == MDOC_Bk)
1.80 schwarze 1029: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1030:
1.106 schwarze 1031: ac = ARGS_PEND;
1032: for (;;) {
1.32 schwarze 1033: la = *pos;
1.106 schwarze 1034: lac = ac;
1.76 schwarze 1035: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1036: if (ac == ARGS_EOLN) {
1037: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.46 schwarze 1038: break;
1039: /*
1040: * This is necessary: if the last token on a
1041: * line is a `Ta' or tab, then we'll get
1042: * ARGS_EOLN, so we must be smart enough to
1043: * reopen our scope if the last parse was a
1044: * phrase or partial phrase.
1045: */
1.123 schwarze 1046: if (body != NULL)
1047: rew_last(mdoc, body);
1.106 schwarze 1048: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1049: break;
1.41 schwarze 1050: }
1.130 schwarze 1051: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1052: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1053: mdoc->parse, line, la, "%s ... %s",
1054: mdoc_macronames[tok], buf + la);
1055: break;
1056: }
1.129 schwarze 1057: if (tok == MDOC_Rs) {
1058: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1059: line, la, "Rs %s", buf + la);
1060: break;
1061: }
1062: if (ac == ARGS_PUNCT)
1063: break;
1.41 schwarze 1064:
1.88 schwarze 1065: /*
1.46 schwarze 1066: * Emit leading punctuation (i.e., punctuation before
1.140 schwarze 1067: * the ROFFT_HEAD) for non-phrase types.
1.46 schwarze 1068: */
1.32 schwarze 1069:
1.106 schwarze 1070: if (head == NULL &&
1071: ac != ARGS_PEND &&
1072: ac != ARGS_PHRASE &&
1073: ac != ARGS_PPHRASE &&
1074: ac != ARGS_QWORD &&
1075: mdoc_isdelim(p) == DELIM_OPEN) {
1076: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1077: continue;
1078: }
1079:
1.46 schwarze 1080: /* Open a head if one hasn't been opened. */
1.32 schwarze 1081:
1.106 schwarze 1082: if (head == NULL)
1083: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1084:
1.106 schwarze 1085: if (ac == ARGS_PHRASE ||
1086: ac == ARGS_PEND ||
1087: ac == ARGS_PPHRASE) {
1.107 schwarze 1088:
1.46 schwarze 1089: /*
1090: * If we haven't opened a body yet, rewind the
1091: * head; if we have, rewind that instead.
1092: */
1093:
1.123 schwarze 1094: rew_last(mdoc, body == NULL ? head : body);
1.106 schwarze 1095: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1096:
1097: /*
1098: * Process phrases: set whether we're in a
1099: * partial-phrase (this effects line handling)
1100: * then call down into the phrase parser.
1101: */
1102:
1.106 schwarze 1103: if (ac == ARGS_PPHRASE)
1.76 schwarze 1104: mdoc->flags |= MDOC_PPHRASE;
1.106 schwarze 1105: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.76 schwarze 1106: mdoc->flags |= MDOC_PPHRASE;
1.110 schwarze 1107: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.76 schwarze 1108: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1109: continue;
1110: }
1111:
1.109 schwarze 1112: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1113: break;
1.32 schwarze 1114: }
1.1 kristaps 1115:
1.121 schwarze 1116: if (blk->flags & MDOC_VALID)
1117: return;
1.106 schwarze 1118: if (head == NULL)
1119: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.130 schwarze 1120: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.106 schwarze 1121: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1122: if (body != NULL)
1.46 schwarze 1123: goto out;
1.143 schwarze 1124: if (find_pending(mdoc, tok, line, ppos, head))
1.139 schwarze 1125: return;
1.54 schwarze 1126:
1.32 schwarze 1127: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1128:
1.123 schwarze 1129: rew_last(mdoc, head);
1130: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1131: out:
1.106 schwarze 1132: if (mdoc->flags & MDOC_FREECOL) {
1.123 schwarze 1133: rew_last(mdoc, body);
1134: rew_last(mdoc, blk);
1.106 schwarze 1135: mdoc->flags &= ~MDOC_FREECOL;
1136: }
1.1 kristaps 1137: }
1138:
1.107 schwarze 1139: static void
1.1 kristaps 1140: blk_part_imp(MACRO_PROT_ARGS)
1141: {
1.43 schwarze 1142: int la, nl;
1.36 schwarze 1143: enum margserr ac;
1.1 kristaps 1144: char *p;
1.141 schwarze 1145: struct roff_node *blk; /* saved block context */
1146: struct roff_node *body; /* saved body context */
1147: struct roff_node *n;
1.1 kristaps 1148:
1.76 schwarze 1149: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1150:
1.32 schwarze 1151: /*
1152: * A macro that spans to the end of the line. This is generally
1153: * (but not necessarily) called as the first macro. The block
1154: * has a head as the immediate child, which is always empty,
1155: * followed by zero or more opening punctuation nodes, then the
1156: * body (which may be empty, depending on the macro), then zero
1157: * or more closing punctuation nodes.
1158: */
1.22 schwarze 1159:
1.106 schwarze 1160: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.118 schwarze 1161: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1162:
1.32 schwarze 1163: /*
1164: * Open the body scope "on-demand", that is, after we've
1165: * processed all our the leading delimiters (open parenthesis,
1166: * etc.).
1167: */
1.1 kristaps 1168:
1.32 schwarze 1169: for (body = NULL; ; ) {
1.22 schwarze 1170: la = *pos;
1.76 schwarze 1171: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1172: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1173: break;
1174:
1.106 schwarze 1175: if (body == NULL && ac != ARGS_QWORD &&
1176: mdoc_isdelim(p) == DELIM_OPEN) {
1177: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1178: continue;
1.80 schwarze 1179: }
1.1 kristaps 1180:
1.106 schwarze 1181: if (body == NULL)
1182: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1183:
1.109 schwarze 1184: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1185: break;
1.32 schwarze 1186: }
1.106 schwarze 1187: if (body == NULL)
1188: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1189:
1.143 schwarze 1190: if (find_pending(mdoc, tok, line, ppos, body))
1.139 schwarze 1191: return;
1192:
1.120 schwarze 1193: rew_last(mdoc, body);
1.106 schwarze 1194: if (nl)
1195: append_delims(mdoc, line, pos, buf);
1.122 schwarze 1196: rew_pending(mdoc, blk);
1.74 schwarze 1197:
1198: /* Move trailing .Ns out of scope. */
1199:
1200: for (n = body->child; n && n->next; n = n->next)
1201: /* Do nothing. */ ;
1.106 schwarze 1202: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1203: mdoc_node_relink(mdoc, n);
1.1 kristaps 1204: }
1205:
1.107 schwarze 1206: static void
1.1 kristaps 1207: blk_part_exp(MACRO_PROT_ARGS)
1208: {
1.37 schwarze 1209: int la, nl;
1.36 schwarze 1210: enum margserr ac;
1.141 schwarze 1211: struct roff_node *head; /* keep track of head */
1.1 kristaps 1212: char *p;
1213:
1.76 schwarze 1214: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1215:
1.32 schwarze 1216: /*
1217: * The opening of an explicit macro having zero or more leading
1218: * punctuation nodes; a head with optional single element (the
1219: * case of `Eo'); and a body that may be empty.
1220: */
1.22 schwarze 1221:
1.106 schwarze 1222: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.119 schwarze 1223: head = NULL;
1224: for (;;) {
1.22 schwarze 1225: la = *pos;
1.76 schwarze 1226: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1227: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1228: break;
1229:
1.32 schwarze 1230: /* Flush out leading punctuation. */
1231:
1.106 schwarze 1232: if (head == NULL && ac != ARGS_QWORD &&
1233: mdoc_isdelim(p) == DELIM_OPEN) {
1234: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1235: continue;
1.80 schwarze 1236: }
1.32 schwarze 1237:
1.106 schwarze 1238: if (head == NULL) {
1239: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1240: if (tok == MDOC_Eo) /* Not parsed. */
1.106 schwarze 1241: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.119 schwarze 1242: rew_last(mdoc, head);
1243: mdoc_body_alloc(mdoc, line, ppos, tok);
1.106 schwarze 1244: if (tok == MDOC_Eo)
1.32 schwarze 1245: continue;
1246: }
1247:
1.109 schwarze 1248: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1249: break;
1.1 kristaps 1250: }
1251:
1.32 schwarze 1252: /* Clean-up to leave in a consistent state. */
1253:
1.119 schwarze 1254: if (head == NULL) {
1255: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.106 schwarze 1256: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1257: }
1.106 schwarze 1258: if (nl)
1259: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1260: }
1261:
1.107 schwarze 1262: static void
1.1 kristaps 1263: in_line_argn(MACRO_PROT_ARGS)
1264: {
1.36 schwarze 1265: struct mdoc_arg *arg;
1266: char *p;
1.137 schwarze 1267: enum margserr ac;
1.141 schwarze 1268: int ntok;
1.137 schwarze 1269: int state; /* arg#; -1: not yet open; -2: closed */
1270: int la, maxargs, nl;
1.1 kristaps 1271:
1.112 schwarze 1272: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1273:
1.32 schwarze 1274: /*
1275: * A line macro that has a fixed number of arguments (maxargs).
1276: * Only open the scope once the first non-leading-punctuation is
1277: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1278: * keep it open until the maximum number of arguments are
1279: * exhausted.
1280: */
1.1 kristaps 1281:
1282: switch (tok) {
1.88 schwarze 1283: case MDOC_Ap:
1.1 kristaps 1284: /* FALLTHROUGH */
1.88 schwarze 1285: case MDOC_Ns:
1.1 kristaps 1286: /* FALLTHROUGH */
1.88 schwarze 1287: case MDOC_Ux:
1.1 kristaps 1288: maxargs = 0;
1289: break;
1.88 schwarze 1290: case MDOC_Bx:
1.64 schwarze 1291: /* FALLTHROUGH */
1.89 schwarze 1292: case MDOC_Es:
1293: /* FALLTHROUGH */
1.88 schwarze 1294: case MDOC_Xr:
1.28 schwarze 1295: maxargs = 2;
1296: break;
1.1 kristaps 1297: default:
1298: maxargs = 1;
1299: break;
1300: }
1301:
1.108 schwarze 1302: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1303:
1.137 schwarze 1304: state = -1;
1.112 schwarze 1305: p = NULL;
1306: for (;;) {
1.22 schwarze 1307: la = *pos;
1.76 schwarze 1308: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.137 schwarze 1309:
1310: if (ac == ARGS_WORD && state == -1 &&
1311: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1312: mdoc_isdelim(p) == DELIM_OPEN) {
1313: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1314: continue;
1315: }
1316:
1317: if (state == -1 && tok != MDOC_In &&
1318: tok != MDOC_St && tok != MDOC_Xr) {
1319: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1320: state = 0;
1321: }
1322:
1.112 schwarze 1323: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.137 schwarze 1324: if (abs(state) < 2 && tok == MDOC_Pf)
1.112 schwarze 1325: mandoc_vmsg(MANDOCERR_PF_SKIP,
1326: mdoc->parse, line, ppos, "Pf %s",
1327: p == NULL ? "at eol" : p);
1.1 kristaps 1328: break;
1.112 schwarze 1329: }
1.1 kristaps 1330:
1.137 schwarze 1331: if (state == maxargs) {
1.105 schwarze 1332: rew_elem(mdoc, tok);
1.137 schwarze 1333: state = -2;
1.32 schwarze 1334: }
1335:
1.137 schwarze 1336: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.112 schwarze 1337: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1338:
1.106 schwarze 1339: if (ntok != MDOC_MAX) {
1.137 schwarze 1340: if (state >= 0) {
1.105 schwarze 1341: rew_elem(mdoc, tok);
1.137 schwarze 1342: state = -2;
1343: }
1.107 schwarze 1344: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1345: break;
1346: }
1347:
1.137 schwarze 1348: if (ac == ARGS_QWORD ||
1349: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1350: mdoc_isdelim(p) == DELIM_NONE) {
1351: if (state == -1) {
1352: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1353: state = 1;
1354: } else if (state >= 0)
1355: state++;
1356: } else if (state >= 0) {
1.105 schwarze 1357: rew_elem(mdoc, tok);
1.137 schwarze 1358: state = -2;
1.28 schwarze 1359: }
1360:
1.106 schwarze 1361: dword(mdoc, line, la, p, DELIM_MAX,
1362: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1363: }
1364:
1.137 schwarze 1365: if (state == -1) {
1366: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1367: line, ppos, mdoc_macronames[tok]);
1368: return;
1.112 schwarze 1369: }
1.137 schwarze 1370:
1371: if (state == 0 && tok == MDOC_Pf)
1372: append_delims(mdoc, line, pos, buf);
1373: if (state >= 0)
1.105 schwarze 1374: rew_elem(mdoc, tok);
1.106 schwarze 1375: if (nl)
1376: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1377: }
1378:
1.107 schwarze 1379: static void
1.1 kristaps 1380: in_line_eoln(MACRO_PROT_ARGS)
1381: {
1.141 schwarze 1382: struct roff_node *n;
1.126 schwarze 1383: struct mdoc_arg *arg;
1.1 kristaps 1384:
1.126 schwarze 1385: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1386: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1387: n = mdoc->last;
1.145 ! schwarze 1388: if (mdoc->next == ROFF_NEXT_SIBLING)
1.126 schwarze 1389: n = n->parent;
1390: if (n->tok == MDOC_Nm)
1391: rew_last(mdoc, mdoc->last->parent);
1.134 schwarze 1392: }
1393:
1.135 schwarze 1394: if (buf[*pos] == '\0' &&
1395: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.134 schwarze 1396: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.135 schwarze 1397: line, ppos, mdoc_macronames[tok]);
1.134 schwarze 1398: return;
1.126 schwarze 1399: }
1.53 schwarze 1400:
1.108 schwarze 1401: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1402: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1403: if (parse_rest(mdoc, tok, line, pos, buf))
1404: return;
1405: rew_elem(mdoc, tok);
1406: }
1407:
1408: /*
1409: * The simplest argument parser available: Parse the remaining
1410: * words until the end of the phrase or line and return 0
1411: * or until the next macro, call that macro, and return 1.
1412: */
1413: static int
1.145 ! schwarze 1414: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.110 schwarze 1415: {
1416: int la;
1.1 kristaps 1417:
1418: for (;;) {
1419: la = *pos;
1.109 schwarze 1420: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.110 schwarze 1421: return(0);
1.109 schwarze 1422: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.110 schwarze 1423: return(1);
1.1 kristaps 1424: }
1.28 schwarze 1425: }
1426:
1.107 schwarze 1427: static void
1.28 schwarze 1428: ctx_synopsis(MACRO_PROT_ARGS)
1429: {
1.37 schwarze 1430:
1.107 schwarze 1431: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1432: in_line(mdoc, tok, line, ppos, pos, buf);
1433: else if (tok == MDOC_Nm)
1434: blk_full(mdoc, tok, line, ppos, pos, buf);
1435: else {
1436: assert(tok == MDOC_Vt);
1437: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1438: }
1.1 kristaps 1439: }
1440:
1.17 schwarze 1441: /*
1442: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1443: * They're unusual because they're basically free-form text until a
1444: * macro is encountered.
1445: */
1.107 schwarze 1446: static void
1.46 schwarze 1447: phrase_ta(MACRO_PROT_ARGS)
1448: {
1.141 schwarze 1449: struct roff_node *body, *n;
1.46 schwarze 1450:
1.78 schwarze 1451: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1452:
1.123 schwarze 1453: body = NULL;
1454: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 1455: if (n->flags & MDOC_ENDED)
1.123 schwarze 1456: continue;
1.140 schwarze 1457: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.123 schwarze 1458: body = n;
1459: if (n->tok == MDOC_Bl)
1460: break;
1461: }
1462:
1.107 schwarze 1463: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1464: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1465: line, ppos, "Ta");
1.107 schwarze 1466: return;
1.78 schwarze 1467: }
1.46 schwarze 1468:
1.78 schwarze 1469: /* Advance to the next column. */
1.106 schwarze 1470:
1.123 schwarze 1471: rew_last(mdoc, body);
1.106 schwarze 1472: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.110 schwarze 1473: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.46 schwarze 1474: }
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