Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.144
1.144 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.143 2015/04/05 22:43:40 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:
1.143 schwarze 43: static void append_delims(struct mdoc *, int, int *, char *);
1.106 schwarze 44: static void dword(struct mdoc *, int, int, const char *,
1.143 schwarze 45: enum mdelim, int);
46: static int find_pending(struct mdoc *, int, int, int,
47: struct roff_node *);
1.141 schwarze 48: static int lookup(struct mdoc *, int, int, int, const char *);
1.109 schwarze 49: static int macro_or_word(MACRO_PROT_ARGS, int);
1.141 schwarze 50: static int parse_rest(struct mdoc *, int, int, int *, char *);
51: static int rew_alt(int);
52: static void rew_elem(struct mdoc *, int);
53: static void rew_last(struct mdoc *, const struct roff_node *);
54: static void rew_pending(struct mdoc *, const struct roff_node *);
1.1 kristaps 55:
56: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.80 schwarze 57: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 58: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
59: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
60: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.80 schwarze 61: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
62: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
63: { in_line_eoln, 0 }, /* Pp */
64: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
65: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 66: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.80 schwarze 67: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 68: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.80 schwarze 69: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
70: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
71: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
72: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 73: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.86 schwarze 74: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 75: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.80 schwarze 76: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
77: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
78: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 79: { in_line_eoln, 0 }, /* Ex */
1.80 schwarze 80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
81: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.80 schwarze 83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.85 schwarze 85: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.11 schwarze 86: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.80 schwarze 87: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
88: { blk_full, MDOC_JOIN }, /* Nd */
89: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 90: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.89 schwarze 91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
93: { in_line_eoln, 0 }, /* Rv */
1.80 schwarze 94: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.80 schwarze 96: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.28 schwarze 97: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.80 schwarze 98: { in_line_eoln, MDOC_JOIN }, /* %A */
99: { in_line_eoln, MDOC_JOIN }, /* %B */
100: { in_line_eoln, MDOC_JOIN }, /* %D */
101: { in_line_eoln, MDOC_JOIN }, /* %I */
102: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 103: { in_line_eoln, 0 }, /* %N */
1.80 schwarze 104: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 105: { in_line_eoln, 0 }, /* %P */
1.80 schwarze 106: { in_line_eoln, MDOC_JOIN }, /* %R */
107: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 108: { in_line_eoln, 0 }, /* %V */
1.80 schwarze 109: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
110: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
111: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
112: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
113: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 114: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.80 schwarze 115: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
116: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
117: { blk_full, MDOC_EXPLICIT }, /* Bf */
118: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
119: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
120: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 121: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
122: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
123: { in_line_eoln, 0 }, /* Db */
1.80 schwarze 124: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
125: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
126: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
127: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
128: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
129: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
130: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
131: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 132: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
133: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 134: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.100 schwarze 135: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.80 schwarze 136: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
137: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
139: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.80 schwarze 140: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
141: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.35 schwarze 142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.80 schwarze 143: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
144: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
145: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
146: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
147: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
148: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
149: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
150: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
151: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
152: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 153: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.80 schwarze 154: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
155: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
156: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
157: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
158: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.103 schwarze 159: { in_line_argn, 0 }, /* Sm */
1.80 schwarze 160: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
161: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 162: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.80 schwarze 163: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 164: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
165: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.80 schwarze 166: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
167: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
168: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
169: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
170: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
171: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
172: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 173: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.80 schwarze 174: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 175: { in_line_eoln, 0 }, /* Bt */
176: { in_line_eoln, 0 }, /* Hf */
1.89 schwarze 177: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 178: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 179: { in_line, 0 }, /* Lb */
1.80 schwarze 180: { in_line_eoln, 0 }, /* Lp */
181: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
182: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
183: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
184: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
185: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
186: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
187: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
188: { in_line_eoln, MDOC_JOIN }, /* %C */
1.89 schwarze 189: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
190: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 191: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.80 schwarze 192: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.13 schwarze 193: { in_line_eoln, 0 }, /* br */
194: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 195: { in_line_eoln, 0 }, /* %U */
1.80 schwarze 196: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.99 schwarze 197: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 198: };
199:
200: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
201:
202:
203: /*
204: * This is called at the end of parsing. It must traverse up the tree,
205: * closing out open [implicit] scopes. Obviously, open explicit scopes
206: * are errors.
207: */
1.107 schwarze 208: void
1.76 schwarze 209: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 210: {
1.141 schwarze 211: struct roff_node *n;
1.1 kristaps 212:
213: /* Scan for open explicit scopes. */
214:
1.107 schwarze 215: n = mdoc->last->flags & MDOC_VALID ?
1.88 schwarze 216: mdoc->last->parent : mdoc->last;
1.1 kristaps 217:
1.56 schwarze 218: for ( ; n; n = n->parent)
1.140 schwarze 219: if (n->type == ROFFT_BLOCK &&
1.107 schwarze 220: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.94 schwarze 221: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
222: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 223:
1.22 schwarze 224: /* Rewind to the first. */
225:
1.105 schwarze 226: rew_last(mdoc, mdoc->first);
1.1 kristaps 227: }
228:
1.22 schwarze 229: /*
1.109 schwarze 230: * Look up the macro at *p called by "from",
231: * or as a line macro if from == MDOC_MAX.
1.22 schwarze 232: */
1.141 schwarze 233: static int
234: lookup(struct mdoc *mdoc, int from, int line, int ppos, const char *p)
1.21 schwarze 235: {
1.141 schwarze 236: int res;
1.1 kristaps 237:
1.109 schwarze 238: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
239: res = mdoc_hash_find(p);
1.111 schwarze 240: if (res != MDOC_MAX) {
241: if (mdoc_macros[res].flags & MDOC_CALLABLE)
242: return(res);
243: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
244: mandoc_msg(MANDOCERR_MACRO_CALL,
245: mdoc->parse, line, ppos, p);
246: }
1.109 schwarze 247: }
1.1 kristaps 248: return(MDOC_MAX);
249: }
250:
1.122 schwarze 251: /*
252: * Rewind up to and including a specific node.
253: */
1.105 schwarze 254: static void
1.141 schwarze 255: rew_last(struct mdoc *mdoc, const struct roff_node *to)
1.1 kristaps 256: {
1.141 schwarze 257: struct roff_node *n, *np;
1.1 kristaps 258:
1.142 schwarze 259: if (to->flags & MDOC_VALID)
260: return;
261:
1.1 kristaps 262: mdoc->next = MDOC_NEXT_SIBLING;
263: while (mdoc->last != to) {
1.63 schwarze 264: /*
265: * Save the parent here, because we may delete the
1.76 schwarze 266: * mdoc->last node in the post-validation phase and reset
267: * it to mdoc->last->parent, causing a step in the closing
1.63 schwarze 268: * out to be lost.
269: */
270: np = mdoc->last->parent;
1.105 schwarze 271: mdoc_valid_post(mdoc);
1.61 schwarze 272: n = mdoc->last;
1.63 schwarze 273: mdoc->last = np;
1.1 kristaps 274: assert(mdoc->last);
1.61 schwarze 275: mdoc->last->last = n;
1.1 kristaps 276: }
1.105 schwarze 277: mdoc_valid_post(mdoc);
1.1 kristaps 278: }
279:
1.22 schwarze 280: /*
1.122 schwarze 281: * Rewind up to a specific block, including all blocks that broke it.
282: */
283: static void
1.141 schwarze 284: rew_pending(struct mdoc *mdoc, const struct roff_node *n)
1.122 schwarze 285: {
286:
1.139 schwarze 287: for (;;) {
288: rew_last(mdoc, n);
289:
290: switch (n->type) {
1.140 schwarze 291: case ROFFT_HEAD:
1.139 schwarze 292: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
293: return;
1.140 schwarze 294: case ROFFT_BLOCK:
1.139 schwarze 295: break;
296: default:
297: return;
298: }
1.122 schwarze 299:
1.139 schwarze 300: if ( ! (n->flags & MDOC_BROKEN))
301: return;
1.122 schwarze 302:
1.139 schwarze 303: for (;;) {
304: if ((n = n->parent) == NULL)
305: return;
306:
1.140 schwarze 307: if (n->type == ROFFT_BLOCK ||
308: n->type == ROFFT_HEAD) {
1.139 schwarze 309: if (n->flags & MDOC_ENDED)
310: break;
311: else
312: return;
313: }
314: }
1.122 schwarze 315: }
316: }
317:
318: /*
1.48 schwarze 319: * For a block closing macro, return the corresponding opening one.
320: * Otherwise, return the macro itself.
1.22 schwarze 321: */
1.141 schwarze 322: static int
323: rew_alt(int tok)
1.1 kristaps 324: {
325: switch (tok) {
1.88 schwarze 326: case MDOC_Ac:
1.1 kristaps 327: return(MDOC_Ao);
1.88 schwarze 328: case MDOC_Bc:
1.1 kristaps 329: return(MDOC_Bo);
1.88 schwarze 330: case MDOC_Brc:
1.1 kristaps 331: return(MDOC_Bro);
1.88 schwarze 332: case MDOC_Dc:
1.1 kristaps 333: return(MDOC_Do);
1.88 schwarze 334: case MDOC_Ec:
1.1 kristaps 335: return(MDOC_Eo);
1.88 schwarze 336: case MDOC_Ed:
1.1 kristaps 337: return(MDOC_Bd);
1.88 schwarze 338: case MDOC_Ef:
1.1 kristaps 339: return(MDOC_Bf);
1.88 schwarze 340: case MDOC_Ek:
1.1 kristaps 341: return(MDOC_Bk);
1.88 schwarze 342: case MDOC_El:
1.1 kristaps 343: return(MDOC_Bl);
1.88 schwarze 344: case MDOC_Fc:
1.1 kristaps 345: return(MDOC_Fo);
1.88 schwarze 346: case MDOC_Oc:
1.1 kristaps 347: return(MDOC_Oo);
1.88 schwarze 348: case MDOC_Pc:
1.1 kristaps 349: return(MDOC_Po);
1.88 schwarze 350: case MDOC_Qc:
1.1 kristaps 351: return(MDOC_Qo);
1.88 schwarze 352: case MDOC_Re:
1.1 kristaps 353: return(MDOC_Rs);
1.88 schwarze 354: case MDOC_Sc:
1.1 kristaps 355: return(MDOC_So);
1.88 schwarze 356: case MDOC_Xc:
1.1 kristaps 357: return(MDOC_Xo);
358: default:
1.48 schwarze 359: return(tok);
1.1 kristaps 360: }
361: /* NOTREACHED */
362: }
363:
1.105 schwarze 364: static void
1.141 schwarze 365: rew_elem(struct mdoc *mdoc, int tok)
1.1 kristaps 366: {
1.141 schwarze 367: struct roff_node *n;
1.1 kristaps 368:
369: n = mdoc->last;
1.140 schwarze 370: if (n->type != ROFFT_ELEM)
1.1 kristaps 371: n = n->parent;
1.140 schwarze 372: assert(n->type == ROFFT_ELEM);
1.1 kristaps 373: assert(tok == n->tok);
1.105 schwarze 374: rew_last(mdoc, n);
1.1 kristaps 375: }
376:
1.47 schwarze 377: /*
1.143 schwarze 378: * If there is an open sub-block of the target requiring
379: * explicit close-out, postpone closing out the target until
380: * the rew_pending() call closing out the sub-block.
381: */
382: static int
383: find_pending(struct mdoc *mdoc, int tok, int line, int ppos,
384: struct roff_node *target)
385: {
386: struct roff_node *n;
387: int irc;
388:
389: irc = 0;
390: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
391: if (n->flags & MDOC_ENDED) {
392: if ( ! (n->flags & MDOC_VALID))
393: n->flags |= MDOC_BROKEN;
394: continue;
395: }
396: if (n->type == ROFFT_BLOCK &&
397: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
398: irc = 1;
399: n->flags = MDOC_BROKEN;
400: if (target->type == ROFFT_HEAD)
401: target->flags = MDOC_ENDED;
402: else if ( ! (target->flags & MDOC_ENDED)) {
403: mandoc_vmsg(MANDOCERR_BLK_NEST,
404: mdoc->parse, line, ppos,
405: "%s breaks %s", mdoc_macronames[tok],
406: mdoc_macronames[n->tok]);
407: mdoc_endbody_alloc(mdoc, line, ppos,
408: tok, target, ENDBODY_NOSPACE);
409: }
410: }
411: }
412: return(irc);
413: }
414:
415: /*
1.66 schwarze 416: * Allocate a word and check whether it's punctuation or not.
417: * Punctuation consists of those tokens found in mdoc_isdelim().
418: */
1.106 schwarze 419: static void
1.80 schwarze 420: dword(struct mdoc *mdoc, int line, int col, const char *p,
421: enum mdelim d, int may_append)
1.66 schwarze 422: {
1.88 schwarze 423:
1.106 schwarze 424: if (d == DELIM_MAX)
1.66 schwarze 425: d = mdoc_isdelim(p);
426:
1.80 schwarze 427: if (may_append &&
1.106 schwarze 428: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.140 schwarze 429: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.106 schwarze 430: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.80 schwarze 431: mdoc_word_append(mdoc, p);
1.106 schwarze 432: return;
1.80 schwarze 433: }
434:
1.106 schwarze 435: mdoc_word_alloc(mdoc, line, col, p);
1.66 schwarze 436:
1.71 schwarze 437: /*
1.100 schwarze 438: * If the word consists of a bare delimiter,
439: * flag the new node accordingly,
440: * unless doing so was vetoed by the invoking macro.
441: * Always clear the veto, it is only valid for one word.
1.71 schwarze 442: */
443:
1.100 schwarze 444: if (d == DELIM_OPEN)
445: mdoc->last->flags |= MDOC_DELIMO;
446: else if (d == DELIM_CLOSE &&
447: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 448: mdoc->last->parent->tok != MDOC_Fd)
1.76 schwarze 449: mdoc->last->flags |= MDOC_DELIMC;
1.100 schwarze 450: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 451: }
1.1 kristaps 452:
1.106 schwarze 453: static void
1.76 schwarze 454: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 455: {
1.109 schwarze 456: char *p;
1.42 schwarze 457: int la;
1.1 kristaps 458:
1.106 schwarze 459: if (buf[*pos] == '\0')
460: return;
1.1 kristaps 461:
462: for (;;) {
1.42 schwarze 463: la = *pos;
1.109 schwarze 464: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 465: break;
1.80 schwarze 466: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 467:
1.42 schwarze 468: /*
469: * If we encounter end-of-sentence symbols, then trigger
470: * the double-space.
471: *
1.68 schwarze 472: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 473: * the last symbol, such that `. )' will cause the
474: * correct double-spacing. However, (1) groff isn't
475: * smart enough to do this and (2) it would require
476: * knowing which symbols break this behaviour, for
1.68 schwarze 477: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 478: */
1.106 schwarze 479:
1.84 schwarze 480: if (mandoc_eos(p, strlen(p)))
1.76 schwarze 481: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 482: }
483: }
484:
485: /*
1.109 schwarze 486: * Parse one word.
487: * If it is a macro, call it and return 1.
488: * Otherwise, allocate it and return 0.
489: */
490: static int
491: macro_or_word(MACRO_PROT_ARGS, int parsed)
492: {
493: char *p;
1.141 schwarze 494: int ntok;
1.109 schwarze 495:
496: p = buf + ppos;
497: ntok = MDOC_MAX;
1.113 schwarze 498: if (*p == '"')
1.109 schwarze 499: p++;
1.113 schwarze 500: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 501: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 502:
503: if (ntok == MDOC_MAX) {
504: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
505: mdoc_macros[tok].flags & MDOC_JOIN);
506: return(0);
507: } else {
508: if (mdoc_macros[tok].fp == in_line_eoln)
509: rew_elem(mdoc, tok);
510: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
511: if (tok == MDOC_MAX)
512: append_delims(mdoc, line, pos, buf);
513: return(1);
514: }
515: }
516:
517: /*
1.88 schwarze 518: * Close out block partial/full explicit.
1.1 kristaps 519: */
1.107 schwarze 520: static void
1.1 kristaps 521: blk_exp_close(MACRO_PROT_ARGS)
522: {
1.141 schwarze 523: struct roff_node *body; /* Our own body. */
524: struct roff_node *endbody; /* Our own end marker. */
525: struct roff_node *itblk; /* An It block starting later. */
526: struct roff_node *later; /* A sub-block starting later. */
527: struct roff_node *n; /* Search back to our block. */
1.144 ! schwarze 528: struct roff_node *target; /* For find_pending(). */
1.47 schwarze 529:
1.144 ! schwarze 530: int j, lastarg, maxargs, nl, pending;
1.36 schwarze 531: enum margserr ac;
1.141 schwarze 532: int atok, ntok;
1.1 kristaps 533: char *p;
534:
1.76 schwarze 535: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 536:
1.1 kristaps 537: switch (tok) {
1.88 schwarze 538: case MDOC_Ec:
1.1 kristaps 539: maxargs = 1;
540: break;
1.88 schwarze 541: case MDOC_Ek:
1.82 schwarze 542: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 543: /* FALLTHROUGH */
1.1 kristaps 544: default:
545: maxargs = 0;
546: break;
547: }
548:
1.47 schwarze 549: /*
550: * Search backwards for beginnings of blocks,
551: * both of our own and of pending sub-blocks.
552: */
1.107 schwarze 553:
1.47 schwarze 554: atok = rew_alt(tok);
1.127 schwarze 555: body = endbody = itblk = later = NULL;
1.76 schwarze 556: for (n = mdoc->last; n; n = n->parent) {
1.139 schwarze 557: if (n->flags & MDOC_ENDED) {
558: if ( ! (n->flags & MDOC_VALID))
559: n->flags |= MDOC_BROKEN;
1.47 schwarze 560: continue;
1.139 schwarze 561: }
1.47 schwarze 562:
563: /* Remember the start of our own body. */
1.107 schwarze 564:
1.140 schwarze 565: if (n->type == ROFFT_BODY && atok == n->tok) {
1.131 schwarze 566: if (n->end == ENDBODY_NOT)
1.47 schwarze 567: body = n;
568: continue;
569: }
570:
1.140 schwarze 571: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.47 schwarze 572: continue;
1.116 schwarze 573:
574: if (n->tok == MDOC_It) {
1.127 schwarze 575: itblk = n;
1.116 schwarze 576: continue;
577: }
578:
1.47 schwarze 579: if (atok == n->tok) {
580: assert(body);
581:
582: /*
583: * Found the start of our own block.
584: * When there is no pending sub block,
585: * just proceed to closing out.
586: */
1.107 schwarze 587:
1.116 schwarze 588: if (later == NULL ||
1.127 schwarze 589: (tok == MDOC_El && itblk == NULL))
1.47 schwarze 590: break;
591:
1.88 schwarze 592: /*
1.123 schwarze 593: * When there is a pending sub block, postpone
594: * closing out the current block until the
595: * rew_pending() closing out the sub-block.
1.47 schwarze 596: * Mark the place where the formatting - but not
597: * the scope - of the current block ends.
598: */
1.107 schwarze 599:
1.139 schwarze 600: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
601: line, ppos, "%s breaks %s",
602: mdoc_macronames[atok],
603: mdoc_macronames[later->tok]);
604:
1.122 schwarze 605: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.106 schwarze 606: atok, body, ENDBODY_SPACE);
1.107 schwarze 607:
1.139 schwarze 608: if (tok == MDOC_El)
609: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
610:
1.107 schwarze 611: /*
612: * If a block closing macro taking arguments
613: * breaks another block, put the arguments
1.122 schwarze 614: * into the end marker.
1.107 schwarze 615: */
616:
1.122 schwarze 617: if (maxargs)
1.104 schwarze 618: mdoc->next = MDOC_NEXT_CHILD;
1.47 schwarze 619: break;
1.138 schwarze 620: }
621:
622: /* Explicit blocks close out description lines. */
623:
624: if (n->tok == MDOC_Nd) {
625: rew_last(mdoc, n);
626: continue;
1.47 schwarze 627: }
628:
1.139 schwarze 629: /* Breaking an open sub block. */
1.107 schwarze 630:
1.139 schwarze 631: n->flags |= MDOC_BROKEN;
632: if (later == NULL)
1.47 schwarze 633: later = n;
634: }
1.122 schwarze 635:
636: if (body == NULL) {
637: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
638: line, ppos, mdoc_macronames[tok]);
639: if (maxargs && endbody == NULL) {
640: /*
641: * Stray .Ec without previous .Eo:
642: * Break the output line, keep the arguments.
643: */
644: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
645: rew_elem(mdoc, MDOC_br);
646: }
647: } else if (endbody == NULL) {
648: rew_last(mdoc, body);
649: if (maxargs)
650: mdoc_tail_alloc(mdoc, line, ppos, atok);
651: }
1.47 schwarze 652:
1.106 schwarze 653: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
654: if (buf[*pos] != '\0')
1.93 schwarze 655: mandoc_vmsg(MANDOCERR_ARG_SKIP,
656: mdoc->parse, line, ppos,
657: "%s %s", mdoc_macronames[tok],
658: buf + *pos);
1.127 schwarze 659: if (endbody == NULL && n != NULL)
1.123 schwarze 660: rew_pending(mdoc, n);
1.107 schwarze 661: return;
1.1 kristaps 662: }
663:
1.122 schwarze 664: if (endbody != NULL)
665: n = endbody;
1.104 schwarze 666: for (j = 0; ; j++) {
1.1 kristaps 667: lastarg = *pos;
668:
1.142 schwarze 669: if (j == maxargs && n != NULL)
670: rew_last(mdoc, n);
1.1 kristaps 671:
1.76 schwarze 672: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 673: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 674: break;
675:
1.111 schwarze 676: ntok = ac == ARGS_QWORD ? MDOC_MAX :
677: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 678:
1.106 schwarze 679: if (ntok == MDOC_MAX) {
680: dword(mdoc, line, lastarg, p, DELIM_MAX,
681: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 682: continue;
683: }
1.1 kristaps 684:
1.142 schwarze 685: if (n != NULL)
686: rew_last(mdoc, n);
1.79 schwarze 687: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 688: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 689: break;
1.1 kristaps 690: }
691:
1.144 ! schwarze 692: if (n != NULL) {
! 693: if (n != mdoc->last && n->flags & MDOC_BROKEN) {
! 694: target = n;
! 695: do
! 696: target = target->parent;
! 697: while ( ! (target->flags & MDOC_ENDED));
! 698: pending = find_pending(mdoc, ntok, line, ppos,
! 699: target);
! 700: } else
! 701: pending = 0;
! 702: if ( ! pending)
! 703: rew_pending(mdoc, n);
! 704: }
1.106 schwarze 705: if (nl)
706: append_delims(mdoc, line, pos, buf);
1.1 kristaps 707: }
708:
1.107 schwarze 709: static void
1.1 kristaps 710: in_line(MACRO_PROT_ARGS)
711: {
1.100 schwarze 712: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.141 schwarze 713: int ntok;
1.36 schwarze 714: enum margserr ac;
1.40 schwarze 715: enum mdelim d;
1.36 schwarze 716: struct mdoc_arg *arg;
717: char *p;
1.1 kristaps 718:
1.76 schwarze 719: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 720:
1.1 kristaps 721: /*
722: * Whether we allow ignored elements (those without content,
723: * usually because of reserved words) to squeak by.
724: */
1.32 schwarze 725:
1.1 kristaps 726: switch (tok) {
1.88 schwarze 727: case MDOC_An:
1.19 schwarze 728: /* FALLTHROUGH */
1.88 schwarze 729: case MDOC_Ar:
1.1 kristaps 730: /* FALLTHROUGH */
1.88 schwarze 731: case MDOC_Fl:
1.1 kristaps 732: /* FALLTHROUGH */
1.88 schwarze 733: case MDOC_Mt:
1.18 schwarze 734: /* FALLTHROUGH */
1.88 schwarze 735: case MDOC_Nm:
1.19 schwarze 736: /* FALLTHROUGH */
1.88 schwarze 737: case MDOC_Pa:
1.1 kristaps 738: nc = 1;
739: break;
740: default:
741: nc = 0;
742: break;
743: }
744:
1.108 schwarze 745: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 746:
1.100 schwarze 747: d = DELIM_NONE;
748: firstarg = 1;
1.98 schwarze 749: mayopen = 1;
1.45 schwarze 750: for (cnt = scope = 0;; ) {
1.1 kristaps 751: la = *pos;
1.76 schwarze 752: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 753:
1.100 schwarze 754: /*
755: * At the end of a macro line,
756: * opening delimiters do not suppress spacing.
757: */
758:
759: if (ac == ARGS_EOLN) {
760: if (d == DELIM_OPEN)
761: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 762: break;
1.100 schwarze 763: }
764:
765: /*
766: * The rest of the macro line is only punctuation,
767: * to be handled by append_delims().
768: * If there were no other arguments,
769: * do not allow the first one to suppress spacing,
770: * even if it turns out to be a closing one.
771: */
772:
773: if (ac == ARGS_PUNCT) {
1.132 schwarze 774: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.100 schwarze 775: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 776: break;
1.100 schwarze 777: }
1.1 kristaps 778:
1.101 schwarze 779: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.111 schwarze 780: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 781:
1.88 schwarze 782: /*
1.1 kristaps 783: * In this case, we've located a submacro and must
784: * execute it. Close out scope, if open. If no
785: * elements have been generated, either create one (nc)
786: * or raise a warning.
787: */
788:
1.106 schwarze 789: if (ntok != MDOC_MAX) {
1.105 schwarze 790: if (scope)
791: rew_elem(mdoc, tok);
1.106 schwarze 792: if (nc && ! cnt) {
793: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 794: rew_last(mdoc, mdoc->last);
1.106 schwarze 795: } else if ( ! nc && ! cnt) {
1.1 kristaps 796: mdoc_argv_free(arg);
1.92 schwarze 797: mandoc_msg(MANDOCERR_MACRO_EMPTY,
798: mdoc->parse, line, ppos,
799: mdoc_macronames[tok]);
1.1 kristaps 800: }
1.107 schwarze 801: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 802: if (nl)
803: append_delims(mdoc, line, pos, buf);
1.107 schwarze 804: return;
1.88 schwarze 805: }
1.1 kristaps 806:
1.88 schwarze 807: /*
1.1 kristaps 808: * Non-quote-enclosed punctuation. Set up our scope, if
809: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 810: * the word.
1.1 kristaps 811: */
812:
1.106 schwarze 813: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 814:
1.45 schwarze 815: if (DELIM_NONE != d) {
816: /*
817: * If we encounter closing punctuation, no word
1.100 schwarze 818: * has been emitted, no scope is open, and we're
1.45 schwarze 819: * allowed to have an empty element, then start
1.98 schwarze 820: * a new scope.
1.45 schwarze 821: */
1.98 schwarze 822: if ((d == DELIM_CLOSE ||
823: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 824: !cnt && !scope && nc && mayopen) {
1.106 schwarze 825: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 826: scope = 1;
1.98 schwarze 827: cnt++;
1.106 schwarze 828: if (tok == MDOC_Nm)
1.98 schwarze 829: mayopen = 0;
1.45 schwarze 830: }
831: /*
832: * Close out our scope, if one is open, before
833: * any punctuation.
834: */
1.105 schwarze 835: if (scope)
836: rew_elem(mdoc, tok);
1.45 schwarze 837: scope = 0;
1.101 schwarze 838: if (tok == MDOC_Fn)
839: mayopen = 0;
1.98 schwarze 840: } else if (mayopen && !scope) {
1.106 schwarze 841: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 842: scope = 1;
1.98 schwarze 843: cnt++;
1.1 kristaps 844: }
1.66 schwarze 845:
1.106 schwarze 846: dword(mdoc, line, la, p, d,
847: MDOC_JOIN & mdoc_macros[tok].flags);
1.27 schwarze 848:
849: /*
1.100 schwarze 850: * If the first argument is a closing delimiter,
851: * do not suppress spacing before it.
852: */
853:
854: if (firstarg && d == DELIM_CLOSE && !nc)
855: mdoc->last->flags &= ~MDOC_DELIMC;
856: firstarg = 0;
857:
858: /*
1.27 schwarze 859: * `Fl' macros have their scope re-opened with each new
860: * word so that the `-' can be added to each one without
861: * having to parse out spaces.
862: */
1.106 schwarze 863: if (scope && tok == MDOC_Fl) {
1.105 schwarze 864: rew_elem(mdoc, tok);
1.45 schwarze 865: scope = 0;
1.27 schwarze 866: }
1.1 kristaps 867: }
868:
1.105 schwarze 869: if (scope)
870: rew_elem(mdoc, tok);
1.1 kristaps 871:
872: /*
873: * If no elements have been collected and we're allowed to have
874: * empties (nc), open a scope and close it out. Otherwise,
875: * raise a warning.
876: */
1.32 schwarze 877:
1.106 schwarze 878: if ( ! cnt) {
879: if (nc) {
880: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
881: rew_last(mdoc, mdoc->last);
882: } else {
883: mdoc_argv_free(arg);
884: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
885: line, ppos, mdoc_macronames[tok]);
886: }
1.1 kristaps 887: }
1.106 schwarze 888: if (nl)
889: append_delims(mdoc, line, pos, buf);
1.1 kristaps 890: }
891:
1.107 schwarze 892: static void
1.1 kristaps 893: blk_full(MACRO_PROT_ARGS)
894: {
1.109 schwarze 895: int la, nl, parsed;
1.1 kristaps 896: struct mdoc_arg *arg;
1.141 schwarze 897: struct roff_node *blk; /* Our own or a broken block. */
898: struct roff_node *head; /* Our own head. */
899: struct roff_node *body; /* Our own body. */
900: struct roff_node *n;
1.37 schwarze 901: enum margserr ac, lac;
1.1 kristaps 902: char *p;
903:
1.76 schwarze 904: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 905:
1.133 schwarze 906: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
907: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
908: line, ppos, mdoc_macronames[tok]);
909: return;
910: }
911:
1.127 schwarze 912: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
913:
914: /* Here, tok is one of Sh Ss Nm Nd It. */
915:
916: blk = NULL;
917: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 918: if (n->flags & MDOC_ENDED) {
919: if ( ! (n->flags & MDOC_VALID))
920: n->flags |= MDOC_BROKEN;
921: continue;
922: }
1.140 schwarze 923: if (n->type != ROFFT_BLOCK)
1.127 schwarze 924: continue;
1.139 schwarze 925:
1.127 schwarze 926: if (tok == MDOC_It && n->tok == MDOC_Bl) {
927: if (blk != NULL) {
928: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
929: mdoc->parse, line, ppos,
930: "It breaks %s",
931: mdoc_macronames[blk->tok]);
932: rew_pending(mdoc, blk);
933: }
934: break;
935: }
936:
937: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
938: switch (tok) {
939: case MDOC_Sh:
940: /* FALLTHROUGH */
941: case MDOC_Ss:
942: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
943: mdoc->parse, line, ppos,
944: "%s breaks %s",
945: mdoc_macronames[tok],
946: mdoc_macronames[n->tok]);
947: rew_pending(mdoc, n);
1.136 schwarze 948: n = mdoc->last;
1.127 schwarze 949: continue;
950: case MDOC_It:
951: /* Delay in case it's astray. */
952: blk = n;
953: continue;
954: default:
955: break;
956: }
957: break;
958: }
959:
960: /* Here, n is one of Sh Ss Nm Nd It. */
1.95 schwarze 961:
1.127 schwarze 962: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
963: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
964: (tok != MDOC_It && n->tok == MDOC_It)))))
1.95 schwarze 965: break;
1.127 schwarze 966:
967: /* Item breaking an explicit block. */
968:
969: if (blk != NULL) {
970: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
971: mdoc->parse, line, ppos,
972: "It breaks %s",
973: mdoc_macronames[blk->tok]);
974: rew_pending(mdoc, blk);
1.128 schwarze 975: blk = NULL;
1.127 schwarze 976: }
977:
978: /* Close out prior implicit scopes. */
979:
980: rew_last(mdoc, n);
981: }
982:
983: /* Skip items outside lists. */
984:
985: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.95 schwarze 986: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
987: line, ppos, "It %s", buf + *pos);
1.106 schwarze 988: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.105 schwarze 989: rew_elem(mdoc, MDOC_br);
1.107 schwarze 990: return;
1.95 schwarze 991: }
1.1 kristaps 992: }
993:
1.32 schwarze 994: /*
1.68 schwarze 995: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 996: * macro openings. Implicit ones first close out prior scope
997: * (seen above). Delay opening the head until necessary to
998: * allow leading punctuation to print. Special consideration
999: * for `It -column', which has phrase-part syntax instead of
1000: * regular child nodes.
1001: */
1002:
1.108 schwarze 1003: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.121 schwarze 1004: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1005: head = body = NULL;
1.1 kristaps 1006:
1.32 schwarze 1007: /*
1.73 schwarze 1008: * Exception: Heads of `It' macros in `-diag' lists are not
1009: * parsed, even though `It' macros in general are parsed.
1010: */
1.107 schwarze 1011:
1.109 schwarze 1012: parsed = tok != MDOC_It ||
1013: mdoc->last->parent->tok != MDOC_Bl ||
1014: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1015:
1016: /*
1.32 schwarze 1017: * The `Nd' macro has all arguments in its body: it's a hybrid
1018: * of block partial-explicit and full-implicit. Stupid.
1019: */
1.12 schwarze 1020:
1.106 schwarze 1021: if (tok == MDOC_Nd) {
1022: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 1023: rew_last(mdoc, head);
1.106 schwarze 1024: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1025: }
1026:
1.106 schwarze 1027: if (tok == MDOC_Bk)
1.80 schwarze 1028: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1029:
1.106 schwarze 1030: ac = ARGS_PEND;
1031: for (;;) {
1.32 schwarze 1032: la = *pos;
1.106 schwarze 1033: lac = ac;
1.76 schwarze 1034: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1035: if (ac == ARGS_EOLN) {
1036: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.46 schwarze 1037: break;
1038: /*
1039: * This is necessary: if the last token on a
1040: * line is a `Ta' or tab, then we'll get
1041: * ARGS_EOLN, so we must be smart enough to
1042: * reopen our scope if the last parse was a
1043: * phrase or partial phrase.
1044: */
1.123 schwarze 1045: if (body != NULL)
1046: rew_last(mdoc, body);
1.106 schwarze 1047: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1048: break;
1.41 schwarze 1049: }
1.130 schwarze 1050: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1051: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1052: mdoc->parse, line, la, "%s ... %s",
1053: mdoc_macronames[tok], buf + la);
1054: break;
1055: }
1.129 schwarze 1056: if (tok == MDOC_Rs) {
1057: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1058: line, la, "Rs %s", buf + la);
1059: break;
1060: }
1061: if (ac == ARGS_PUNCT)
1062: break;
1.41 schwarze 1063:
1.88 schwarze 1064: /*
1.46 schwarze 1065: * Emit leading punctuation (i.e., punctuation before
1.140 schwarze 1066: * the ROFFT_HEAD) for non-phrase types.
1.46 schwarze 1067: */
1.32 schwarze 1068:
1.106 schwarze 1069: if (head == NULL &&
1070: ac != ARGS_PEND &&
1071: ac != ARGS_PHRASE &&
1072: ac != ARGS_PPHRASE &&
1073: ac != ARGS_QWORD &&
1074: mdoc_isdelim(p) == DELIM_OPEN) {
1075: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1076: continue;
1077: }
1078:
1.46 schwarze 1079: /* Open a head if one hasn't been opened. */
1.32 schwarze 1080:
1.106 schwarze 1081: if (head == NULL)
1082: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1083:
1.106 schwarze 1084: if (ac == ARGS_PHRASE ||
1085: ac == ARGS_PEND ||
1086: ac == ARGS_PPHRASE) {
1.107 schwarze 1087:
1.46 schwarze 1088: /*
1089: * If we haven't opened a body yet, rewind the
1090: * head; if we have, rewind that instead.
1091: */
1092:
1.123 schwarze 1093: rew_last(mdoc, body == NULL ? head : body);
1.106 schwarze 1094: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1095:
1096: /*
1097: * Process phrases: set whether we're in a
1098: * partial-phrase (this effects line handling)
1099: * then call down into the phrase parser.
1100: */
1101:
1.106 schwarze 1102: if (ac == ARGS_PPHRASE)
1.76 schwarze 1103: mdoc->flags |= MDOC_PPHRASE;
1.106 schwarze 1104: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.76 schwarze 1105: mdoc->flags |= MDOC_PPHRASE;
1.110 schwarze 1106: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.76 schwarze 1107: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1108: continue;
1109: }
1110:
1.109 schwarze 1111: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1112: break;
1.32 schwarze 1113: }
1.1 kristaps 1114:
1.121 schwarze 1115: if (blk->flags & MDOC_VALID)
1116: return;
1.106 schwarze 1117: if (head == NULL)
1118: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.130 schwarze 1119: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.106 schwarze 1120: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1121: if (body != NULL)
1.46 schwarze 1122: goto out;
1.143 schwarze 1123: if (find_pending(mdoc, tok, line, ppos, head))
1.139 schwarze 1124: return;
1.54 schwarze 1125:
1.32 schwarze 1126: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1127:
1.123 schwarze 1128: rew_last(mdoc, head);
1129: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1130: out:
1.106 schwarze 1131: if (mdoc->flags & MDOC_FREECOL) {
1.123 schwarze 1132: rew_last(mdoc, body);
1133: rew_last(mdoc, blk);
1.106 schwarze 1134: mdoc->flags &= ~MDOC_FREECOL;
1135: }
1.1 kristaps 1136: }
1137:
1.107 schwarze 1138: static void
1.1 kristaps 1139: blk_part_imp(MACRO_PROT_ARGS)
1140: {
1.43 schwarze 1141: int la, nl;
1.36 schwarze 1142: enum margserr ac;
1.1 kristaps 1143: char *p;
1.141 schwarze 1144: struct roff_node *blk; /* saved block context */
1145: struct roff_node *body; /* saved body context */
1146: struct roff_node *n;
1.1 kristaps 1147:
1.76 schwarze 1148: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1149:
1.32 schwarze 1150: /*
1151: * A macro that spans to the end of the line. This is generally
1152: * (but not necessarily) called as the first macro. The block
1153: * has a head as the immediate child, which is always empty,
1154: * followed by zero or more opening punctuation nodes, then the
1155: * body (which may be empty, depending on the macro), then zero
1156: * or more closing punctuation nodes.
1157: */
1.22 schwarze 1158:
1.106 schwarze 1159: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.118 schwarze 1160: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1161:
1.32 schwarze 1162: /*
1163: * Open the body scope "on-demand", that is, after we've
1164: * processed all our the leading delimiters (open parenthesis,
1165: * etc.).
1166: */
1.1 kristaps 1167:
1.32 schwarze 1168: for (body = NULL; ; ) {
1.22 schwarze 1169: la = *pos;
1.76 schwarze 1170: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1171: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1172: break;
1173:
1.106 schwarze 1174: if (body == NULL && ac != ARGS_QWORD &&
1175: mdoc_isdelim(p) == DELIM_OPEN) {
1176: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1177: continue;
1.80 schwarze 1178: }
1.1 kristaps 1179:
1.106 schwarze 1180: if (body == NULL)
1181: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1182:
1.109 schwarze 1183: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1184: break;
1.32 schwarze 1185: }
1.106 schwarze 1186: if (body == NULL)
1187: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1188:
1.143 schwarze 1189: if (find_pending(mdoc, tok, line, ppos, body))
1.139 schwarze 1190: return;
1191:
1.120 schwarze 1192: rew_last(mdoc, body);
1.106 schwarze 1193: if (nl)
1194: append_delims(mdoc, line, pos, buf);
1.122 schwarze 1195: rew_pending(mdoc, blk);
1.74 schwarze 1196:
1197: /* Move trailing .Ns out of scope. */
1198:
1199: for (n = body->child; n && n->next; n = n->next)
1200: /* Do nothing. */ ;
1.106 schwarze 1201: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1202: mdoc_node_relink(mdoc, n);
1.1 kristaps 1203: }
1204:
1.107 schwarze 1205: static void
1.1 kristaps 1206: blk_part_exp(MACRO_PROT_ARGS)
1207: {
1.37 schwarze 1208: int la, nl;
1.36 schwarze 1209: enum margserr ac;
1.141 schwarze 1210: struct roff_node *head; /* keep track of head */
1.1 kristaps 1211: char *p;
1212:
1.76 schwarze 1213: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1214:
1.32 schwarze 1215: /*
1216: * The opening of an explicit macro having zero or more leading
1217: * punctuation nodes; a head with optional single element (the
1218: * case of `Eo'); and a body that may be empty.
1219: */
1.22 schwarze 1220:
1.106 schwarze 1221: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.119 schwarze 1222: head = NULL;
1223: for (;;) {
1.22 schwarze 1224: la = *pos;
1.76 schwarze 1225: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1226: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1227: break;
1228:
1.32 schwarze 1229: /* Flush out leading punctuation. */
1230:
1.106 schwarze 1231: if (head == NULL && ac != ARGS_QWORD &&
1232: mdoc_isdelim(p) == DELIM_OPEN) {
1233: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1234: continue;
1.80 schwarze 1235: }
1.32 schwarze 1236:
1.106 schwarze 1237: if (head == NULL) {
1238: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1239: if (tok == MDOC_Eo) /* Not parsed. */
1.106 schwarze 1240: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.119 schwarze 1241: rew_last(mdoc, head);
1242: mdoc_body_alloc(mdoc, line, ppos, tok);
1.106 schwarze 1243: if (tok == MDOC_Eo)
1.32 schwarze 1244: continue;
1245: }
1246:
1.109 schwarze 1247: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1248: break;
1.1 kristaps 1249: }
1250:
1.32 schwarze 1251: /* Clean-up to leave in a consistent state. */
1252:
1.119 schwarze 1253: if (head == NULL) {
1254: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.106 schwarze 1255: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1256: }
1.106 schwarze 1257: if (nl)
1258: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1259: }
1260:
1.107 schwarze 1261: static void
1.1 kristaps 1262: in_line_argn(MACRO_PROT_ARGS)
1263: {
1.36 schwarze 1264: struct mdoc_arg *arg;
1265: char *p;
1.137 schwarze 1266: enum margserr ac;
1.141 schwarze 1267: int ntok;
1.137 schwarze 1268: int state; /* arg#; -1: not yet open; -2: closed */
1269: int la, maxargs, nl;
1.1 kristaps 1270:
1.112 schwarze 1271: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1272:
1.32 schwarze 1273: /*
1274: * A line macro that has a fixed number of arguments (maxargs).
1275: * Only open the scope once the first non-leading-punctuation is
1276: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1277: * keep it open until the maximum number of arguments are
1278: * exhausted.
1279: */
1.1 kristaps 1280:
1281: switch (tok) {
1.88 schwarze 1282: case MDOC_Ap:
1.1 kristaps 1283: /* FALLTHROUGH */
1.88 schwarze 1284: case MDOC_Ns:
1.1 kristaps 1285: /* FALLTHROUGH */
1.88 schwarze 1286: case MDOC_Ux:
1.1 kristaps 1287: maxargs = 0;
1288: break;
1.88 schwarze 1289: case MDOC_Bx:
1.64 schwarze 1290: /* FALLTHROUGH */
1.89 schwarze 1291: case MDOC_Es:
1292: /* FALLTHROUGH */
1.88 schwarze 1293: case MDOC_Xr:
1.28 schwarze 1294: maxargs = 2;
1295: break;
1.1 kristaps 1296: default:
1297: maxargs = 1;
1298: break;
1299: }
1300:
1.108 schwarze 1301: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1302:
1.137 schwarze 1303: state = -1;
1.112 schwarze 1304: p = NULL;
1305: for (;;) {
1.22 schwarze 1306: la = *pos;
1.76 schwarze 1307: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.137 schwarze 1308:
1309: if (ac == ARGS_WORD && state == -1 &&
1310: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1311: mdoc_isdelim(p) == DELIM_OPEN) {
1312: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1313: continue;
1314: }
1315:
1316: if (state == -1 && tok != MDOC_In &&
1317: tok != MDOC_St && tok != MDOC_Xr) {
1318: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1319: state = 0;
1320: }
1321:
1.112 schwarze 1322: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.137 schwarze 1323: if (abs(state) < 2 && tok == MDOC_Pf)
1.112 schwarze 1324: mandoc_vmsg(MANDOCERR_PF_SKIP,
1325: mdoc->parse, line, ppos, "Pf %s",
1326: p == NULL ? "at eol" : p);
1.1 kristaps 1327: break;
1.112 schwarze 1328: }
1.1 kristaps 1329:
1.137 schwarze 1330: if (state == maxargs) {
1.105 schwarze 1331: rew_elem(mdoc, tok);
1.137 schwarze 1332: state = -2;
1.32 schwarze 1333: }
1334:
1.137 schwarze 1335: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.112 schwarze 1336: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1337:
1.106 schwarze 1338: if (ntok != MDOC_MAX) {
1.137 schwarze 1339: if (state >= 0) {
1.105 schwarze 1340: rew_elem(mdoc, tok);
1.137 schwarze 1341: state = -2;
1342: }
1.107 schwarze 1343: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1344: break;
1345: }
1346:
1.137 schwarze 1347: if (ac == ARGS_QWORD ||
1348: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1349: mdoc_isdelim(p) == DELIM_NONE) {
1350: if (state == -1) {
1351: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1352: state = 1;
1353: } else if (state >= 0)
1354: state++;
1355: } else if (state >= 0) {
1.105 schwarze 1356: rew_elem(mdoc, tok);
1.137 schwarze 1357: state = -2;
1.28 schwarze 1358: }
1359:
1.106 schwarze 1360: dword(mdoc, line, la, p, DELIM_MAX,
1361: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1362: }
1363:
1.137 schwarze 1364: if (state == -1) {
1365: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1366: line, ppos, mdoc_macronames[tok]);
1367: return;
1.112 schwarze 1368: }
1.137 schwarze 1369:
1370: if (state == 0 && tok == MDOC_Pf)
1371: append_delims(mdoc, line, pos, buf);
1372: if (state >= 0)
1.105 schwarze 1373: rew_elem(mdoc, tok);
1.106 schwarze 1374: if (nl)
1375: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1376: }
1377:
1.107 schwarze 1378: static void
1.1 kristaps 1379: in_line_eoln(MACRO_PROT_ARGS)
1380: {
1.141 schwarze 1381: struct roff_node *n;
1.126 schwarze 1382: struct mdoc_arg *arg;
1.1 kristaps 1383:
1.126 schwarze 1384: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1385: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1386: n = mdoc->last;
1387: if (mdoc->next == MDOC_NEXT_SIBLING)
1388: n = n->parent;
1389: if (n->tok == MDOC_Nm)
1390: rew_last(mdoc, mdoc->last->parent);
1.134 schwarze 1391: }
1392:
1.135 schwarze 1393: if (buf[*pos] == '\0' &&
1394: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.134 schwarze 1395: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.135 schwarze 1396: line, ppos, mdoc_macronames[tok]);
1.134 schwarze 1397: return;
1.126 schwarze 1398: }
1.53 schwarze 1399:
1.108 schwarze 1400: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1401: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1402: if (parse_rest(mdoc, tok, line, pos, buf))
1403: return;
1404: rew_elem(mdoc, tok);
1405: }
1406:
1407: /*
1408: * The simplest argument parser available: Parse the remaining
1409: * words until the end of the phrase or line and return 0
1410: * or until the next macro, call that macro, and return 1.
1411: */
1412: static int
1.141 schwarze 1413: parse_rest(struct mdoc *mdoc, int tok, int line, int *pos, char *buf)
1.110 schwarze 1414: {
1415: int la;
1.1 kristaps 1416:
1417: for (;;) {
1418: la = *pos;
1.109 schwarze 1419: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.110 schwarze 1420: return(0);
1.109 schwarze 1421: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.110 schwarze 1422: return(1);
1.1 kristaps 1423: }
1.28 schwarze 1424: }
1425:
1.107 schwarze 1426: static void
1.28 schwarze 1427: ctx_synopsis(MACRO_PROT_ARGS)
1428: {
1.37 schwarze 1429:
1.107 schwarze 1430: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1431: in_line(mdoc, tok, line, ppos, pos, buf);
1432: else if (tok == MDOC_Nm)
1433: blk_full(mdoc, tok, line, ppos, pos, buf);
1434: else {
1435: assert(tok == MDOC_Vt);
1436: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1437: }
1.1 kristaps 1438: }
1439:
1.17 schwarze 1440: /*
1441: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1442: * They're unusual because they're basically free-form text until a
1443: * macro is encountered.
1444: */
1.107 schwarze 1445: static void
1.46 schwarze 1446: phrase_ta(MACRO_PROT_ARGS)
1447: {
1.141 schwarze 1448: struct roff_node *body, *n;
1.46 schwarze 1449:
1.78 schwarze 1450: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1451:
1.123 schwarze 1452: body = NULL;
1453: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 1454: if (n->flags & MDOC_ENDED)
1.123 schwarze 1455: continue;
1.140 schwarze 1456: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.123 schwarze 1457: body = n;
1458: if (n->tok == MDOC_Bl)
1459: break;
1460: }
1461:
1.107 schwarze 1462: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1463: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1464: line, ppos, "Ta");
1.107 schwarze 1465: return;
1.78 schwarze 1466: }
1.46 schwarze 1467:
1.78 schwarze 1468: /* Advance to the next column. */
1.106 schwarze 1469:
1.123 schwarze 1470: rew_last(mdoc, body);
1.106 schwarze 1471: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.110 schwarze 1472: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.46 schwarze 1473: }
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