Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.142
1.142 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.141 2015/04/02 22:06:17 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:
1.106 schwarze 43: static void dword(struct mdoc *, int, int, const char *,
1.80 schwarze 44: enum mdelim, int);
1.106 schwarze 45: static void append_delims(struct mdoc *, int, int *, char *);
1.141 schwarze 46: static int lookup(struct mdoc *, int, int, int, const char *);
1.109 schwarze 47: static int macro_or_word(MACRO_PROT_ARGS, int);
1.141 schwarze 48: static int parse_rest(struct mdoc *, int, int, int *, char *);
49: static int rew_alt(int);
50: static void rew_elem(struct mdoc *, int);
51: static void rew_last(struct mdoc *, const struct roff_node *);
52: static void rew_pending(struct mdoc *, const struct roff_node *);
1.1 kristaps 53:
54: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.80 schwarze 55: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 56: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
57: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
58: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.80 schwarze 59: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
60: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
61: { in_line_eoln, 0 }, /* Pp */
62: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
63: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 64: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.80 schwarze 65: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 66: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.80 schwarze 67: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
68: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
69: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
70: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 71: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.86 schwarze 72: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 73: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.80 schwarze 74: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
75: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
76: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 77: { in_line_eoln, 0 }, /* Ex */
1.80 schwarze 78: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
79: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.80 schwarze 81: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.85 schwarze 83: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.11 schwarze 84: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.80 schwarze 85: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
86: { blk_full, MDOC_JOIN }, /* Nd */
87: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 88: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.89 schwarze 89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 90: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
91: { in_line_eoln, 0 }, /* Rv */
1.80 schwarze 92: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.80 schwarze 94: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.28 schwarze 95: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.80 schwarze 96: { in_line_eoln, MDOC_JOIN }, /* %A */
97: { in_line_eoln, MDOC_JOIN }, /* %B */
98: { in_line_eoln, MDOC_JOIN }, /* %D */
99: { in_line_eoln, MDOC_JOIN }, /* %I */
100: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 101: { in_line_eoln, 0 }, /* %N */
1.80 schwarze 102: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 103: { in_line_eoln, 0 }, /* %P */
1.80 schwarze 104: { in_line_eoln, MDOC_JOIN }, /* %R */
105: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 106: { in_line_eoln, 0 }, /* %V */
1.80 schwarze 107: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
108: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
109: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
110: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
111: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 112: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.80 schwarze 113: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
114: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
115: { blk_full, MDOC_EXPLICIT }, /* Bf */
116: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
117: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
118: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 119: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
120: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
121: { in_line_eoln, 0 }, /* Db */
1.80 schwarze 122: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
123: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
124: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
125: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
126: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
127: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
128: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
129: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 130: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
131: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 132: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.100 schwarze 133: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.80 schwarze 134: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
135: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 136: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
137: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.80 schwarze 138: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
139: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.35 schwarze 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.80 schwarze 141: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
142: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
143: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
144: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
145: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
146: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
147: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
148: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
149: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
150: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 151: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.80 schwarze 152: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
153: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
154: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
155: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
156: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.103 schwarze 157: { in_line_argn, 0 }, /* Sm */
1.80 schwarze 158: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
159: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 160: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.80 schwarze 161: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 162: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
163: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.80 schwarze 164: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
165: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
166: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
167: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
168: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
169: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
170: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 171: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.80 schwarze 172: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 173: { in_line_eoln, 0 }, /* Bt */
174: { in_line_eoln, 0 }, /* Hf */
1.89 schwarze 175: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 176: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 177: { in_line, 0 }, /* Lb */
1.80 schwarze 178: { in_line_eoln, 0 }, /* Lp */
179: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
180: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
181: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
182: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
183: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
184: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
185: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
186: { in_line_eoln, MDOC_JOIN }, /* %C */
1.89 schwarze 187: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
188: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 189: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.80 schwarze 190: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.13 schwarze 191: { in_line_eoln, 0 }, /* br */
192: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 193: { in_line_eoln, 0 }, /* %U */
1.80 schwarze 194: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.99 schwarze 195: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 196: };
197:
198: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
199:
200:
201: /*
202: * This is called at the end of parsing. It must traverse up the tree,
203: * closing out open [implicit] scopes. Obviously, open explicit scopes
204: * are errors.
205: */
1.107 schwarze 206: void
1.76 schwarze 207: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 208: {
1.141 schwarze 209: struct roff_node *n;
1.1 kristaps 210:
211: /* Scan for open explicit scopes. */
212:
1.107 schwarze 213: n = mdoc->last->flags & MDOC_VALID ?
1.88 schwarze 214: mdoc->last->parent : mdoc->last;
1.1 kristaps 215:
1.56 schwarze 216: for ( ; n; n = n->parent)
1.140 schwarze 217: if (n->type == ROFFT_BLOCK &&
1.107 schwarze 218: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.94 schwarze 219: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
220: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 221:
1.22 schwarze 222: /* Rewind to the first. */
223:
1.105 schwarze 224: rew_last(mdoc, mdoc->first);
1.1 kristaps 225: }
226:
1.22 schwarze 227: /*
1.109 schwarze 228: * Look up the macro at *p called by "from",
229: * or as a line macro if from == MDOC_MAX.
1.22 schwarze 230: */
1.141 schwarze 231: static int
232: lookup(struct mdoc *mdoc, int from, int line, int ppos, const char *p)
1.21 schwarze 233: {
1.141 schwarze 234: int res;
1.1 kristaps 235:
1.109 schwarze 236: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
237: res = mdoc_hash_find(p);
1.111 schwarze 238: if (res != MDOC_MAX) {
239: if (mdoc_macros[res].flags & MDOC_CALLABLE)
240: return(res);
241: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
242: mandoc_msg(MANDOCERR_MACRO_CALL,
243: mdoc->parse, line, ppos, p);
244: }
1.109 schwarze 245: }
1.1 kristaps 246: return(MDOC_MAX);
247: }
248:
1.122 schwarze 249: /*
250: * Rewind up to and including a specific node.
251: */
1.105 schwarze 252: static void
1.141 schwarze 253: rew_last(struct mdoc *mdoc, const struct roff_node *to)
1.1 kristaps 254: {
1.141 schwarze 255: struct roff_node *n, *np;
1.1 kristaps 256:
1.142 ! schwarze 257: if (to->flags & MDOC_VALID)
! 258: return;
! 259:
1.1 kristaps 260: mdoc->next = MDOC_NEXT_SIBLING;
261: while (mdoc->last != to) {
1.63 schwarze 262: /*
263: * Save the parent here, because we may delete the
1.76 schwarze 264: * mdoc->last node in the post-validation phase and reset
265: * it to mdoc->last->parent, causing a step in the closing
1.63 schwarze 266: * out to be lost.
267: */
268: np = mdoc->last->parent;
1.105 schwarze 269: mdoc_valid_post(mdoc);
1.61 schwarze 270: n = mdoc->last;
1.63 schwarze 271: mdoc->last = np;
1.1 kristaps 272: assert(mdoc->last);
1.61 schwarze 273: mdoc->last->last = n;
1.1 kristaps 274: }
1.105 schwarze 275: mdoc_valid_post(mdoc);
1.1 kristaps 276: }
277:
1.22 schwarze 278: /*
1.122 schwarze 279: * Rewind up to a specific block, including all blocks that broke it.
280: */
281: static void
1.141 schwarze 282: rew_pending(struct mdoc *mdoc, const struct roff_node *n)
1.122 schwarze 283: {
284:
1.139 schwarze 285: for (;;) {
286: rew_last(mdoc, n);
287:
288: switch (n->type) {
1.140 schwarze 289: case ROFFT_HEAD:
1.139 schwarze 290: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
291: return;
1.140 schwarze 292: case ROFFT_BLOCK:
1.139 schwarze 293: break;
294: default:
295: return;
296: }
1.122 schwarze 297:
1.139 schwarze 298: if ( ! (n->flags & MDOC_BROKEN))
299: return;
1.122 schwarze 300:
1.139 schwarze 301: for (;;) {
302: if ((n = n->parent) == NULL)
303: return;
304:
1.140 schwarze 305: if (n->type == ROFFT_BLOCK ||
306: n->type == ROFFT_HEAD) {
1.139 schwarze 307: if (n->flags & MDOC_ENDED)
308: break;
309: else
310: return;
311: }
312: }
1.122 schwarze 313: }
314: }
315:
316: /*
1.48 schwarze 317: * For a block closing macro, return the corresponding opening one.
318: * Otherwise, return the macro itself.
1.22 schwarze 319: */
1.141 schwarze 320: static int
321: rew_alt(int tok)
1.1 kristaps 322: {
323: switch (tok) {
1.88 schwarze 324: case MDOC_Ac:
1.1 kristaps 325: return(MDOC_Ao);
1.88 schwarze 326: case MDOC_Bc:
1.1 kristaps 327: return(MDOC_Bo);
1.88 schwarze 328: case MDOC_Brc:
1.1 kristaps 329: return(MDOC_Bro);
1.88 schwarze 330: case MDOC_Dc:
1.1 kristaps 331: return(MDOC_Do);
1.88 schwarze 332: case MDOC_Ec:
1.1 kristaps 333: return(MDOC_Eo);
1.88 schwarze 334: case MDOC_Ed:
1.1 kristaps 335: return(MDOC_Bd);
1.88 schwarze 336: case MDOC_Ef:
1.1 kristaps 337: return(MDOC_Bf);
1.88 schwarze 338: case MDOC_Ek:
1.1 kristaps 339: return(MDOC_Bk);
1.88 schwarze 340: case MDOC_El:
1.1 kristaps 341: return(MDOC_Bl);
1.88 schwarze 342: case MDOC_Fc:
1.1 kristaps 343: return(MDOC_Fo);
1.88 schwarze 344: case MDOC_Oc:
1.1 kristaps 345: return(MDOC_Oo);
1.88 schwarze 346: case MDOC_Pc:
1.1 kristaps 347: return(MDOC_Po);
1.88 schwarze 348: case MDOC_Qc:
1.1 kristaps 349: return(MDOC_Qo);
1.88 schwarze 350: case MDOC_Re:
1.1 kristaps 351: return(MDOC_Rs);
1.88 schwarze 352: case MDOC_Sc:
1.1 kristaps 353: return(MDOC_So);
1.88 schwarze 354: case MDOC_Xc:
1.1 kristaps 355: return(MDOC_Xo);
356: default:
1.48 schwarze 357: return(tok);
1.1 kristaps 358: }
359: /* NOTREACHED */
360: }
361:
1.105 schwarze 362: static void
1.141 schwarze 363: rew_elem(struct mdoc *mdoc, int tok)
1.1 kristaps 364: {
1.141 schwarze 365: struct roff_node *n;
1.1 kristaps 366:
367: n = mdoc->last;
1.140 schwarze 368: if (n->type != ROFFT_ELEM)
1.1 kristaps 369: n = n->parent;
1.140 schwarze 370: assert(n->type == ROFFT_ELEM);
1.1 kristaps 371: assert(tok == n->tok);
1.105 schwarze 372: rew_last(mdoc, n);
1.1 kristaps 373: }
374:
1.47 schwarze 375: /*
1.66 schwarze 376: * Allocate a word and check whether it's punctuation or not.
377: * Punctuation consists of those tokens found in mdoc_isdelim().
378: */
1.106 schwarze 379: static void
1.80 schwarze 380: dword(struct mdoc *mdoc, int line, int col, const char *p,
381: enum mdelim d, int may_append)
1.66 schwarze 382: {
1.88 schwarze 383:
1.106 schwarze 384: if (d == DELIM_MAX)
1.66 schwarze 385: d = mdoc_isdelim(p);
386:
1.80 schwarze 387: if (may_append &&
1.106 schwarze 388: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.140 schwarze 389: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.106 schwarze 390: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.80 schwarze 391: mdoc_word_append(mdoc, p);
1.106 schwarze 392: return;
1.80 schwarze 393: }
394:
1.106 schwarze 395: mdoc_word_alloc(mdoc, line, col, p);
1.66 schwarze 396:
1.71 schwarze 397: /*
1.100 schwarze 398: * If the word consists of a bare delimiter,
399: * flag the new node accordingly,
400: * unless doing so was vetoed by the invoking macro.
401: * Always clear the veto, it is only valid for one word.
1.71 schwarze 402: */
403:
1.100 schwarze 404: if (d == DELIM_OPEN)
405: mdoc->last->flags |= MDOC_DELIMO;
406: else if (d == DELIM_CLOSE &&
407: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 408: mdoc->last->parent->tok != MDOC_Fd)
1.76 schwarze 409: mdoc->last->flags |= MDOC_DELIMC;
1.100 schwarze 410: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 411: }
1.1 kristaps 412:
1.106 schwarze 413: static void
1.76 schwarze 414: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 415: {
1.109 schwarze 416: char *p;
1.42 schwarze 417: int la;
1.1 kristaps 418:
1.106 schwarze 419: if (buf[*pos] == '\0')
420: return;
1.1 kristaps 421:
422: for (;;) {
1.42 schwarze 423: la = *pos;
1.109 schwarze 424: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 425: break;
1.80 schwarze 426: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 427:
1.42 schwarze 428: /*
429: * If we encounter end-of-sentence symbols, then trigger
430: * the double-space.
431: *
1.68 schwarze 432: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 433: * the last symbol, such that `. )' will cause the
434: * correct double-spacing. However, (1) groff isn't
435: * smart enough to do this and (2) it would require
436: * knowing which symbols break this behaviour, for
1.68 schwarze 437: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 438: */
1.106 schwarze 439:
1.84 schwarze 440: if (mandoc_eos(p, strlen(p)))
1.76 schwarze 441: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 442: }
443: }
444:
445: /*
1.109 schwarze 446: * Parse one word.
447: * If it is a macro, call it and return 1.
448: * Otherwise, allocate it and return 0.
449: */
450: static int
451: macro_or_word(MACRO_PROT_ARGS, int parsed)
452: {
453: char *p;
1.141 schwarze 454: int ntok;
1.109 schwarze 455:
456: p = buf + ppos;
457: ntok = MDOC_MAX;
1.113 schwarze 458: if (*p == '"')
1.109 schwarze 459: p++;
1.113 schwarze 460: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 461: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 462:
463: if (ntok == MDOC_MAX) {
464: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
465: mdoc_macros[tok].flags & MDOC_JOIN);
466: return(0);
467: } else {
468: if (mdoc_macros[tok].fp == in_line_eoln)
469: rew_elem(mdoc, tok);
470: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
471: if (tok == MDOC_MAX)
472: append_delims(mdoc, line, pos, buf);
473: return(1);
474: }
475: }
476:
477: /*
1.88 schwarze 478: * Close out block partial/full explicit.
1.1 kristaps 479: */
1.107 schwarze 480: static void
1.1 kristaps 481: blk_exp_close(MACRO_PROT_ARGS)
482: {
1.141 schwarze 483: struct roff_node *body; /* Our own body. */
484: struct roff_node *endbody; /* Our own end marker. */
485: struct roff_node *itblk; /* An It block starting later. */
486: struct roff_node *later; /* A sub-block starting later. */
487: struct roff_node *n; /* Search back to our block. */
1.47 schwarze 488:
1.127 schwarze 489: int j, lastarg, maxargs, nl;
1.36 schwarze 490: enum margserr ac;
1.141 schwarze 491: int atok, ntok;
1.1 kristaps 492: char *p;
493:
1.76 schwarze 494: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 495:
1.1 kristaps 496: switch (tok) {
1.88 schwarze 497: case MDOC_Ec:
1.1 kristaps 498: maxargs = 1;
499: break;
1.88 schwarze 500: case MDOC_Ek:
1.82 schwarze 501: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 502: /* FALLTHROUGH */
1.1 kristaps 503: default:
504: maxargs = 0;
505: break;
506: }
507:
1.47 schwarze 508: /*
509: * Search backwards for beginnings of blocks,
510: * both of our own and of pending sub-blocks.
511: */
1.107 schwarze 512:
1.47 schwarze 513: atok = rew_alt(tok);
1.127 schwarze 514: body = endbody = itblk = later = NULL;
1.76 schwarze 515: for (n = mdoc->last; n; n = n->parent) {
1.139 schwarze 516: if (n->flags & MDOC_ENDED) {
517: if ( ! (n->flags & MDOC_VALID))
518: n->flags |= MDOC_BROKEN;
1.47 schwarze 519: continue;
1.139 schwarze 520: }
1.47 schwarze 521:
522: /* Remember the start of our own body. */
1.107 schwarze 523:
1.140 schwarze 524: if (n->type == ROFFT_BODY && atok == n->tok) {
1.131 schwarze 525: if (n->end == ENDBODY_NOT)
1.47 schwarze 526: body = n;
527: continue;
528: }
529:
1.140 schwarze 530: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.47 schwarze 531: continue;
1.116 schwarze 532:
533: if (n->tok == MDOC_It) {
1.127 schwarze 534: itblk = n;
1.116 schwarze 535: continue;
536: }
537:
1.47 schwarze 538: if (atok == n->tok) {
539: assert(body);
540:
541: /*
542: * Found the start of our own block.
543: * When there is no pending sub block,
544: * just proceed to closing out.
545: */
1.107 schwarze 546:
1.116 schwarze 547: if (later == NULL ||
1.127 schwarze 548: (tok == MDOC_El && itblk == NULL))
1.47 schwarze 549: break;
550:
1.88 schwarze 551: /*
1.123 schwarze 552: * When there is a pending sub block, postpone
553: * closing out the current block until the
554: * rew_pending() closing out the sub-block.
1.47 schwarze 555: * Mark the place where the formatting - but not
556: * the scope - of the current block ends.
557: */
1.107 schwarze 558:
1.139 schwarze 559: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
560: line, ppos, "%s breaks %s",
561: mdoc_macronames[atok],
562: mdoc_macronames[later->tok]);
563:
1.122 schwarze 564: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.106 schwarze 565: atok, body, ENDBODY_SPACE);
1.107 schwarze 566:
1.139 schwarze 567: if (tok == MDOC_El)
568: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
569:
1.107 schwarze 570: /*
571: * If a block closing macro taking arguments
572: * breaks another block, put the arguments
1.122 schwarze 573: * into the end marker.
1.107 schwarze 574: */
575:
1.122 schwarze 576: if (maxargs)
1.104 schwarze 577: mdoc->next = MDOC_NEXT_CHILD;
1.47 schwarze 578: break;
1.138 schwarze 579: }
580:
581: /* Explicit blocks close out description lines. */
582:
583: if (n->tok == MDOC_Nd) {
584: rew_last(mdoc, n);
585: continue;
1.47 schwarze 586: }
587:
1.139 schwarze 588: /* Breaking an open sub block. */
1.107 schwarze 589:
1.139 schwarze 590: n->flags |= MDOC_BROKEN;
591: if (later == NULL)
1.47 schwarze 592: later = n;
593: }
1.122 schwarze 594:
595: if (body == NULL) {
596: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
597: line, ppos, mdoc_macronames[tok]);
598: if (maxargs && endbody == NULL) {
599: /*
600: * Stray .Ec without previous .Eo:
601: * Break the output line, keep the arguments.
602: */
603: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
604: rew_elem(mdoc, MDOC_br);
605: }
606: } else if (endbody == NULL) {
607: rew_last(mdoc, body);
608: if (maxargs)
609: mdoc_tail_alloc(mdoc, line, ppos, atok);
610: }
1.47 schwarze 611:
1.106 schwarze 612: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
613: if (buf[*pos] != '\0')
1.93 schwarze 614: mandoc_vmsg(MANDOCERR_ARG_SKIP,
615: mdoc->parse, line, ppos,
616: "%s %s", mdoc_macronames[tok],
617: buf + *pos);
1.127 schwarze 618: if (endbody == NULL && n != NULL)
1.123 schwarze 619: rew_pending(mdoc, n);
1.107 schwarze 620: return;
1.1 kristaps 621: }
622:
1.122 schwarze 623: if (endbody != NULL)
624: n = endbody;
1.104 schwarze 625: for (j = 0; ; j++) {
1.1 kristaps 626: lastarg = *pos;
627:
1.142 ! schwarze 628: if (j == maxargs && n != NULL)
! 629: rew_last(mdoc, n);
1.1 kristaps 630:
1.76 schwarze 631: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 632: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 633: break;
634:
1.111 schwarze 635: ntok = ac == ARGS_QWORD ? MDOC_MAX :
636: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 637:
1.106 schwarze 638: if (ntok == MDOC_MAX) {
639: dword(mdoc, line, lastarg, p, DELIM_MAX,
640: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 641: continue;
642: }
1.1 kristaps 643:
1.142 ! schwarze 644: if (n != NULL)
! 645: rew_last(mdoc, n);
1.79 schwarze 646: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 647: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 648: break;
1.1 kristaps 649: }
650:
1.122 schwarze 651: if (n != NULL)
652: rew_pending(mdoc, n);
1.106 schwarze 653: if (nl)
654: append_delims(mdoc, line, pos, buf);
1.1 kristaps 655: }
656:
1.107 schwarze 657: static void
1.1 kristaps 658: in_line(MACRO_PROT_ARGS)
659: {
1.100 schwarze 660: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.141 schwarze 661: int ntok;
1.36 schwarze 662: enum margserr ac;
1.40 schwarze 663: enum mdelim d;
1.36 schwarze 664: struct mdoc_arg *arg;
665: char *p;
1.1 kristaps 666:
1.76 schwarze 667: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 668:
1.1 kristaps 669: /*
670: * Whether we allow ignored elements (those without content,
671: * usually because of reserved words) to squeak by.
672: */
1.32 schwarze 673:
1.1 kristaps 674: switch (tok) {
1.88 schwarze 675: case MDOC_An:
1.19 schwarze 676: /* FALLTHROUGH */
1.88 schwarze 677: case MDOC_Ar:
1.1 kristaps 678: /* FALLTHROUGH */
1.88 schwarze 679: case MDOC_Fl:
1.1 kristaps 680: /* FALLTHROUGH */
1.88 schwarze 681: case MDOC_Mt:
1.18 schwarze 682: /* FALLTHROUGH */
1.88 schwarze 683: case MDOC_Nm:
1.19 schwarze 684: /* FALLTHROUGH */
1.88 schwarze 685: case MDOC_Pa:
1.1 kristaps 686: nc = 1;
687: break;
688: default:
689: nc = 0;
690: break;
691: }
692:
1.108 schwarze 693: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 694:
1.100 schwarze 695: d = DELIM_NONE;
696: firstarg = 1;
1.98 schwarze 697: mayopen = 1;
1.45 schwarze 698: for (cnt = scope = 0;; ) {
1.1 kristaps 699: la = *pos;
1.76 schwarze 700: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 701:
1.100 schwarze 702: /*
703: * At the end of a macro line,
704: * opening delimiters do not suppress spacing.
705: */
706:
707: if (ac == ARGS_EOLN) {
708: if (d == DELIM_OPEN)
709: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 710: break;
1.100 schwarze 711: }
712:
713: /*
714: * The rest of the macro line is only punctuation,
715: * to be handled by append_delims().
716: * If there were no other arguments,
717: * do not allow the first one to suppress spacing,
718: * even if it turns out to be a closing one.
719: */
720:
721: if (ac == ARGS_PUNCT) {
1.132 schwarze 722: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.100 schwarze 723: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 724: break;
1.100 schwarze 725: }
1.1 kristaps 726:
1.101 schwarze 727: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.111 schwarze 728: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 729:
1.88 schwarze 730: /*
1.1 kristaps 731: * In this case, we've located a submacro and must
732: * execute it. Close out scope, if open. If no
733: * elements have been generated, either create one (nc)
734: * or raise a warning.
735: */
736:
1.106 schwarze 737: if (ntok != MDOC_MAX) {
1.105 schwarze 738: if (scope)
739: rew_elem(mdoc, tok);
1.106 schwarze 740: if (nc && ! cnt) {
741: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 742: rew_last(mdoc, mdoc->last);
1.106 schwarze 743: } else if ( ! nc && ! cnt) {
1.1 kristaps 744: mdoc_argv_free(arg);
1.92 schwarze 745: mandoc_msg(MANDOCERR_MACRO_EMPTY,
746: mdoc->parse, line, ppos,
747: mdoc_macronames[tok]);
1.1 kristaps 748: }
1.107 schwarze 749: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 750: if (nl)
751: append_delims(mdoc, line, pos, buf);
1.107 schwarze 752: return;
1.88 schwarze 753: }
1.1 kristaps 754:
1.88 schwarze 755: /*
1.1 kristaps 756: * Non-quote-enclosed punctuation. Set up our scope, if
757: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 758: * the word.
1.1 kristaps 759: */
760:
1.106 schwarze 761: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 762:
1.45 schwarze 763: if (DELIM_NONE != d) {
764: /*
765: * If we encounter closing punctuation, no word
1.100 schwarze 766: * has been emitted, no scope is open, and we're
1.45 schwarze 767: * allowed to have an empty element, then start
1.98 schwarze 768: * a new scope.
1.45 schwarze 769: */
1.98 schwarze 770: if ((d == DELIM_CLOSE ||
771: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 772: !cnt && !scope && nc && mayopen) {
1.106 schwarze 773: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 774: scope = 1;
1.98 schwarze 775: cnt++;
1.106 schwarze 776: if (tok == MDOC_Nm)
1.98 schwarze 777: mayopen = 0;
1.45 schwarze 778: }
779: /*
780: * Close out our scope, if one is open, before
781: * any punctuation.
782: */
1.105 schwarze 783: if (scope)
784: rew_elem(mdoc, tok);
1.45 schwarze 785: scope = 0;
1.101 schwarze 786: if (tok == MDOC_Fn)
787: mayopen = 0;
1.98 schwarze 788: } else if (mayopen && !scope) {
1.106 schwarze 789: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 790: scope = 1;
1.98 schwarze 791: cnt++;
1.1 kristaps 792: }
1.66 schwarze 793:
1.106 schwarze 794: dword(mdoc, line, la, p, d,
795: MDOC_JOIN & mdoc_macros[tok].flags);
1.27 schwarze 796:
797: /*
1.100 schwarze 798: * If the first argument is a closing delimiter,
799: * do not suppress spacing before it.
800: */
801:
802: if (firstarg && d == DELIM_CLOSE && !nc)
803: mdoc->last->flags &= ~MDOC_DELIMC;
804: firstarg = 0;
805:
806: /*
1.27 schwarze 807: * `Fl' macros have their scope re-opened with each new
808: * word so that the `-' can be added to each one without
809: * having to parse out spaces.
810: */
1.106 schwarze 811: if (scope && tok == MDOC_Fl) {
1.105 schwarze 812: rew_elem(mdoc, tok);
1.45 schwarze 813: scope = 0;
1.27 schwarze 814: }
1.1 kristaps 815: }
816:
1.105 schwarze 817: if (scope)
818: rew_elem(mdoc, tok);
1.1 kristaps 819:
820: /*
821: * If no elements have been collected and we're allowed to have
822: * empties (nc), open a scope and close it out. Otherwise,
823: * raise a warning.
824: */
1.32 schwarze 825:
1.106 schwarze 826: if ( ! cnt) {
827: if (nc) {
828: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
829: rew_last(mdoc, mdoc->last);
830: } else {
831: mdoc_argv_free(arg);
832: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
833: line, ppos, mdoc_macronames[tok]);
834: }
1.1 kristaps 835: }
1.106 schwarze 836: if (nl)
837: append_delims(mdoc, line, pos, buf);
1.1 kristaps 838: }
839:
1.107 schwarze 840: static void
1.1 kristaps 841: blk_full(MACRO_PROT_ARGS)
842: {
1.109 schwarze 843: int la, nl, parsed;
1.1 kristaps 844: struct mdoc_arg *arg;
1.141 schwarze 845: struct roff_node *blk; /* Our own or a broken block. */
846: struct roff_node *head; /* Our own head. */
847: struct roff_node *body; /* Our own body. */
848: struct roff_node *n;
1.37 schwarze 849: enum margserr ac, lac;
1.1 kristaps 850: char *p;
851:
1.76 schwarze 852: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 853:
1.133 schwarze 854: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
855: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
856: line, ppos, mdoc_macronames[tok]);
857: return;
858: }
859:
1.127 schwarze 860: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
861:
862: /* Here, tok is one of Sh Ss Nm Nd It. */
863:
864: blk = NULL;
865: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 866: if (n->flags & MDOC_ENDED) {
867: if ( ! (n->flags & MDOC_VALID))
868: n->flags |= MDOC_BROKEN;
869: continue;
870: }
1.140 schwarze 871: if (n->type != ROFFT_BLOCK)
1.127 schwarze 872: continue;
1.139 schwarze 873:
1.127 schwarze 874: if (tok == MDOC_It && n->tok == MDOC_Bl) {
875: if (blk != NULL) {
876: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
877: mdoc->parse, line, ppos,
878: "It breaks %s",
879: mdoc_macronames[blk->tok]);
880: rew_pending(mdoc, blk);
881: }
882: break;
883: }
884:
885: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
886: switch (tok) {
887: case MDOC_Sh:
888: /* FALLTHROUGH */
889: case MDOC_Ss:
890: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
891: mdoc->parse, line, ppos,
892: "%s breaks %s",
893: mdoc_macronames[tok],
894: mdoc_macronames[n->tok]);
895: rew_pending(mdoc, n);
1.136 schwarze 896: n = mdoc->last;
1.127 schwarze 897: continue;
898: case MDOC_It:
899: /* Delay in case it's astray. */
900: blk = n;
901: continue;
902: default:
903: break;
904: }
905: break;
906: }
907:
908: /* Here, n is one of Sh Ss Nm Nd It. */
1.95 schwarze 909:
1.127 schwarze 910: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
911: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
912: (tok != MDOC_It && n->tok == MDOC_It)))))
1.95 schwarze 913: break;
1.127 schwarze 914:
915: /* Item breaking an explicit block. */
916:
917: if (blk != NULL) {
918: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
919: mdoc->parse, line, ppos,
920: "It breaks %s",
921: mdoc_macronames[blk->tok]);
922: rew_pending(mdoc, blk);
1.128 schwarze 923: blk = NULL;
1.127 schwarze 924: }
925:
926: /* Close out prior implicit scopes. */
927:
928: rew_last(mdoc, n);
929: }
930:
931: /* Skip items outside lists. */
932:
933: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.95 schwarze 934: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
935: line, ppos, "It %s", buf + *pos);
1.106 schwarze 936: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.105 schwarze 937: rew_elem(mdoc, MDOC_br);
1.107 schwarze 938: return;
1.95 schwarze 939: }
1.1 kristaps 940: }
941:
1.32 schwarze 942: /*
1.68 schwarze 943: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 944: * macro openings. Implicit ones first close out prior scope
945: * (seen above). Delay opening the head until necessary to
946: * allow leading punctuation to print. Special consideration
947: * for `It -column', which has phrase-part syntax instead of
948: * regular child nodes.
949: */
950:
1.108 schwarze 951: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.121 schwarze 952: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 953: head = body = NULL;
1.1 kristaps 954:
1.32 schwarze 955: /*
1.73 schwarze 956: * Exception: Heads of `It' macros in `-diag' lists are not
957: * parsed, even though `It' macros in general are parsed.
958: */
1.107 schwarze 959:
1.109 schwarze 960: parsed = tok != MDOC_It ||
961: mdoc->last->parent->tok != MDOC_Bl ||
962: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 963:
964: /*
1.32 schwarze 965: * The `Nd' macro has all arguments in its body: it's a hybrid
966: * of block partial-explicit and full-implicit. Stupid.
967: */
1.12 schwarze 968:
1.106 schwarze 969: if (tok == MDOC_Nd) {
970: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 971: rew_last(mdoc, head);
1.106 schwarze 972: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 973: }
974:
1.106 schwarze 975: if (tok == MDOC_Bk)
1.80 schwarze 976: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 977:
1.106 schwarze 978: ac = ARGS_PEND;
979: for (;;) {
1.32 schwarze 980: la = *pos;
1.106 schwarze 981: lac = ac;
1.76 schwarze 982: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 983: if (ac == ARGS_EOLN) {
984: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.46 schwarze 985: break;
986: /*
987: * This is necessary: if the last token on a
988: * line is a `Ta' or tab, then we'll get
989: * ARGS_EOLN, so we must be smart enough to
990: * reopen our scope if the last parse was a
991: * phrase or partial phrase.
992: */
1.123 schwarze 993: if (body != NULL)
994: rew_last(mdoc, body);
1.106 schwarze 995: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 996: break;
1.41 schwarze 997: }
1.130 schwarze 998: if (tok == MDOC_Bd || tok == MDOC_Bk) {
999: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1000: mdoc->parse, line, la, "%s ... %s",
1001: mdoc_macronames[tok], buf + la);
1002: break;
1003: }
1.129 schwarze 1004: if (tok == MDOC_Rs) {
1005: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1006: line, la, "Rs %s", buf + la);
1007: break;
1008: }
1009: if (ac == ARGS_PUNCT)
1010: break;
1.41 schwarze 1011:
1.88 schwarze 1012: /*
1.46 schwarze 1013: * Emit leading punctuation (i.e., punctuation before
1.140 schwarze 1014: * the ROFFT_HEAD) for non-phrase types.
1.46 schwarze 1015: */
1.32 schwarze 1016:
1.106 schwarze 1017: if (head == NULL &&
1018: ac != ARGS_PEND &&
1019: ac != ARGS_PHRASE &&
1020: ac != ARGS_PPHRASE &&
1021: ac != ARGS_QWORD &&
1022: mdoc_isdelim(p) == DELIM_OPEN) {
1023: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1024: continue;
1025: }
1026:
1.46 schwarze 1027: /* Open a head if one hasn't been opened. */
1.32 schwarze 1028:
1.106 schwarze 1029: if (head == NULL)
1030: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1031:
1.106 schwarze 1032: if (ac == ARGS_PHRASE ||
1033: ac == ARGS_PEND ||
1034: ac == ARGS_PPHRASE) {
1.107 schwarze 1035:
1.46 schwarze 1036: /*
1037: * If we haven't opened a body yet, rewind the
1038: * head; if we have, rewind that instead.
1039: */
1040:
1.123 schwarze 1041: rew_last(mdoc, body == NULL ? head : body);
1.106 schwarze 1042: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1043:
1044: /*
1045: * Process phrases: set whether we're in a
1046: * partial-phrase (this effects line handling)
1047: * then call down into the phrase parser.
1048: */
1049:
1.106 schwarze 1050: if (ac == ARGS_PPHRASE)
1.76 schwarze 1051: mdoc->flags |= MDOC_PPHRASE;
1.106 schwarze 1052: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.76 schwarze 1053: mdoc->flags |= MDOC_PPHRASE;
1.110 schwarze 1054: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.76 schwarze 1055: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1056: continue;
1057: }
1058:
1.109 schwarze 1059: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1060: break;
1.32 schwarze 1061: }
1.1 kristaps 1062:
1.121 schwarze 1063: if (blk->flags & MDOC_VALID)
1064: return;
1.106 schwarze 1065: if (head == NULL)
1066: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.130 schwarze 1067: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.106 schwarze 1068: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1069: if (body != NULL)
1.46 schwarze 1070: goto out;
1.29 schwarze 1071:
1072: /*
1.34 schwarze 1073: * If there is an open (i.e., unvalidated) sub-block requiring
1074: * explicit close-out, postpone switching the current block from
1.123 schwarze 1075: * head to body until the rew_pending() call closing out that
1.34 schwarze 1076: * sub-block.
1.29 schwarze 1077: */
1.76 schwarze 1078: for (n = mdoc->last; n && n != head; n = n->parent) {
1.139 schwarze 1079: if (n->flags & MDOC_ENDED) {
1080: if ( ! (n->flags & MDOC_VALID))
1081: n->flags |= MDOC_BROKEN;
1082: continue;
1083: }
1.140 schwarze 1084: if (n->type == ROFFT_BLOCK &&
1.139 schwarze 1085: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
1086: n->flags = MDOC_BROKEN;
1087: head->flags = MDOC_ENDED;
1.29 schwarze 1088: }
1089: }
1.139 schwarze 1090: if (head->flags & MDOC_ENDED)
1091: return;
1.54 schwarze 1092:
1.32 schwarze 1093: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1094:
1.123 schwarze 1095: rew_last(mdoc, head);
1096: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1097: out:
1.106 schwarze 1098: if (mdoc->flags & MDOC_FREECOL) {
1.123 schwarze 1099: rew_last(mdoc, body);
1100: rew_last(mdoc, blk);
1.106 schwarze 1101: mdoc->flags &= ~MDOC_FREECOL;
1102: }
1.1 kristaps 1103: }
1104:
1.107 schwarze 1105: static void
1.1 kristaps 1106: blk_part_imp(MACRO_PROT_ARGS)
1107: {
1.43 schwarze 1108: int la, nl;
1.36 schwarze 1109: enum margserr ac;
1.1 kristaps 1110: char *p;
1.141 schwarze 1111: struct roff_node *blk; /* saved block context */
1112: struct roff_node *body; /* saved body context */
1113: struct roff_node *n;
1.1 kristaps 1114:
1.76 schwarze 1115: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1116:
1.32 schwarze 1117: /*
1118: * A macro that spans to the end of the line. This is generally
1119: * (but not necessarily) called as the first macro. The block
1120: * has a head as the immediate child, which is always empty,
1121: * followed by zero or more opening punctuation nodes, then the
1122: * body (which may be empty, depending on the macro), then zero
1123: * or more closing punctuation nodes.
1124: */
1.22 schwarze 1125:
1.106 schwarze 1126: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.118 schwarze 1127: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1128:
1.32 schwarze 1129: /*
1130: * Open the body scope "on-demand", that is, after we've
1131: * processed all our the leading delimiters (open parenthesis,
1132: * etc.).
1133: */
1.1 kristaps 1134:
1.32 schwarze 1135: for (body = NULL; ; ) {
1.22 schwarze 1136: la = *pos;
1.76 schwarze 1137: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1138: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1139: break;
1140:
1.106 schwarze 1141: if (body == NULL && ac != ARGS_QWORD &&
1142: mdoc_isdelim(p) == DELIM_OPEN) {
1143: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1144: continue;
1.80 schwarze 1145: }
1.1 kristaps 1146:
1.106 schwarze 1147: if (body == NULL)
1148: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1149:
1.109 schwarze 1150: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1151: break;
1.32 schwarze 1152: }
1.106 schwarze 1153: if (body == NULL)
1154: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1155:
1.47 schwarze 1156: /*
1157: * If there is an open sub-block requiring explicit close-out,
1.123 schwarze 1158: * postpone closing out the current block until the
1159: * rew_pending() call closing out the sub-block.
1.47 schwarze 1160: */
1.107 schwarze 1161:
1.76 schwarze 1162: for (n = mdoc->last; n && n != body && n != blk->parent;
1.88 schwarze 1163: n = n->parent) {
1.139 schwarze 1164: if (n->flags & MDOC_ENDED) {
1165: if ( ! (n->flags & MDOC_VALID))
1166: n->flags |= MDOC_BROKEN;
1167: continue;
1168: }
1.140 schwarze 1169: if (n->type == ROFFT_BLOCK &&
1.139 schwarze 1170: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
1171: n->flags |= MDOC_BROKEN;
1172: if ( ! (body->flags & MDOC_ENDED)) {
1173: mandoc_vmsg(MANDOCERR_BLK_NEST,
1174: mdoc->parse, line, ppos,
1175: "%s breaks %s", mdoc_macronames[tok],
1176: mdoc_macronames[n->tok]);
1177: mdoc_endbody_alloc(mdoc, line, ppos,
1178: tok, body, ENDBODY_NOSPACE);
1179: }
1.47 schwarze 1180: }
1181: }
1.91 schwarze 1182: assert(n == body);
1.139 schwarze 1183: if (body->flags & MDOC_ENDED)
1184: return;
1185:
1.120 schwarze 1186: rew_last(mdoc, body);
1.106 schwarze 1187: if (nl)
1188: append_delims(mdoc, line, pos, buf);
1.122 schwarze 1189: rew_pending(mdoc, blk);
1.74 schwarze 1190:
1191: /* Move trailing .Ns out of scope. */
1192:
1193: for (n = body->child; n && n->next; n = n->next)
1194: /* Do nothing. */ ;
1.106 schwarze 1195: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1196: mdoc_node_relink(mdoc, n);
1.1 kristaps 1197: }
1198:
1.107 schwarze 1199: static void
1.1 kristaps 1200: blk_part_exp(MACRO_PROT_ARGS)
1201: {
1.37 schwarze 1202: int la, nl;
1.36 schwarze 1203: enum margserr ac;
1.141 schwarze 1204: struct roff_node *head; /* keep track of head */
1.1 kristaps 1205: char *p;
1206:
1.76 schwarze 1207: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1208:
1.32 schwarze 1209: /*
1210: * The opening of an explicit macro having zero or more leading
1211: * punctuation nodes; a head with optional single element (the
1212: * case of `Eo'); and a body that may be empty.
1213: */
1.22 schwarze 1214:
1.106 schwarze 1215: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.119 schwarze 1216: head = NULL;
1217: for (;;) {
1.22 schwarze 1218: la = *pos;
1.76 schwarze 1219: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1220: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1221: break;
1222:
1.32 schwarze 1223: /* Flush out leading punctuation. */
1224:
1.106 schwarze 1225: if (head == NULL && ac != ARGS_QWORD &&
1226: mdoc_isdelim(p) == DELIM_OPEN) {
1227: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1228: continue;
1.80 schwarze 1229: }
1.32 schwarze 1230:
1.106 schwarze 1231: if (head == NULL) {
1232: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1233: if (tok == MDOC_Eo) /* Not parsed. */
1.106 schwarze 1234: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.119 schwarze 1235: rew_last(mdoc, head);
1236: mdoc_body_alloc(mdoc, line, ppos, tok);
1.106 schwarze 1237: if (tok == MDOC_Eo)
1.32 schwarze 1238: continue;
1239: }
1240:
1.109 schwarze 1241: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1242: break;
1.1 kristaps 1243: }
1244:
1.32 schwarze 1245: /* Clean-up to leave in a consistent state. */
1246:
1.119 schwarze 1247: if (head == NULL) {
1248: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.106 schwarze 1249: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1250: }
1.106 schwarze 1251: if (nl)
1252: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1253: }
1254:
1.107 schwarze 1255: static void
1.1 kristaps 1256: in_line_argn(MACRO_PROT_ARGS)
1257: {
1.36 schwarze 1258: struct mdoc_arg *arg;
1259: char *p;
1.137 schwarze 1260: enum margserr ac;
1.141 schwarze 1261: int ntok;
1.137 schwarze 1262: int state; /* arg#; -1: not yet open; -2: closed */
1263: int la, maxargs, nl;
1.1 kristaps 1264:
1.112 schwarze 1265: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1266:
1.32 schwarze 1267: /*
1268: * A line macro that has a fixed number of arguments (maxargs).
1269: * Only open the scope once the first non-leading-punctuation is
1270: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1271: * keep it open until the maximum number of arguments are
1272: * exhausted.
1273: */
1.1 kristaps 1274:
1275: switch (tok) {
1.88 schwarze 1276: case MDOC_Ap:
1.1 kristaps 1277: /* FALLTHROUGH */
1.88 schwarze 1278: case MDOC_Ns:
1.1 kristaps 1279: /* FALLTHROUGH */
1.88 schwarze 1280: case MDOC_Ux:
1.1 kristaps 1281: maxargs = 0;
1282: break;
1.88 schwarze 1283: case MDOC_Bx:
1.64 schwarze 1284: /* FALLTHROUGH */
1.89 schwarze 1285: case MDOC_Es:
1286: /* FALLTHROUGH */
1.88 schwarze 1287: case MDOC_Xr:
1.28 schwarze 1288: maxargs = 2;
1289: break;
1.1 kristaps 1290: default:
1291: maxargs = 1;
1292: break;
1293: }
1294:
1.108 schwarze 1295: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1296:
1.137 schwarze 1297: state = -1;
1.112 schwarze 1298: p = NULL;
1299: for (;;) {
1.22 schwarze 1300: la = *pos;
1.76 schwarze 1301: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.137 schwarze 1302:
1303: if (ac == ARGS_WORD && state == -1 &&
1304: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1305: mdoc_isdelim(p) == DELIM_OPEN) {
1306: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1307: continue;
1308: }
1309:
1310: if (state == -1 && tok != MDOC_In &&
1311: tok != MDOC_St && tok != MDOC_Xr) {
1312: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1313: state = 0;
1314: }
1315:
1.112 schwarze 1316: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.137 schwarze 1317: if (abs(state) < 2 && tok == MDOC_Pf)
1.112 schwarze 1318: mandoc_vmsg(MANDOCERR_PF_SKIP,
1319: mdoc->parse, line, ppos, "Pf %s",
1320: p == NULL ? "at eol" : p);
1.1 kristaps 1321: break;
1.112 schwarze 1322: }
1.1 kristaps 1323:
1.137 schwarze 1324: if (state == maxargs) {
1.105 schwarze 1325: rew_elem(mdoc, tok);
1.137 schwarze 1326: state = -2;
1.32 schwarze 1327: }
1328:
1.137 schwarze 1329: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.112 schwarze 1330: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1331:
1.106 schwarze 1332: if (ntok != MDOC_MAX) {
1.137 schwarze 1333: if (state >= 0) {
1.105 schwarze 1334: rew_elem(mdoc, tok);
1.137 schwarze 1335: state = -2;
1336: }
1.107 schwarze 1337: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1338: break;
1339: }
1340:
1.137 schwarze 1341: if (ac == ARGS_QWORD ||
1342: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1343: mdoc_isdelim(p) == DELIM_NONE) {
1344: if (state == -1) {
1345: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1346: state = 1;
1347: } else if (state >= 0)
1348: state++;
1349: } else if (state >= 0) {
1.105 schwarze 1350: rew_elem(mdoc, tok);
1.137 schwarze 1351: state = -2;
1.28 schwarze 1352: }
1353:
1.106 schwarze 1354: dword(mdoc, line, la, p, DELIM_MAX,
1355: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1356: }
1357:
1.137 schwarze 1358: if (state == -1) {
1359: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1360: line, ppos, mdoc_macronames[tok]);
1361: return;
1.112 schwarze 1362: }
1.137 schwarze 1363:
1364: if (state == 0 && tok == MDOC_Pf)
1365: append_delims(mdoc, line, pos, buf);
1366: if (state >= 0)
1.105 schwarze 1367: rew_elem(mdoc, tok);
1.106 schwarze 1368: if (nl)
1369: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1370: }
1371:
1.107 schwarze 1372: static void
1.1 kristaps 1373: in_line_eoln(MACRO_PROT_ARGS)
1374: {
1.141 schwarze 1375: struct roff_node *n;
1.126 schwarze 1376: struct mdoc_arg *arg;
1.1 kristaps 1377:
1.126 schwarze 1378: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1379: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1380: n = mdoc->last;
1381: if (mdoc->next == MDOC_NEXT_SIBLING)
1382: n = n->parent;
1383: if (n->tok == MDOC_Nm)
1384: rew_last(mdoc, mdoc->last->parent);
1.134 schwarze 1385: }
1386:
1.135 schwarze 1387: if (buf[*pos] == '\0' &&
1388: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.134 schwarze 1389: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.135 schwarze 1390: line, ppos, mdoc_macronames[tok]);
1.134 schwarze 1391: return;
1.126 schwarze 1392: }
1.53 schwarze 1393:
1.108 schwarze 1394: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1395: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1396: if (parse_rest(mdoc, tok, line, pos, buf))
1397: return;
1398: rew_elem(mdoc, tok);
1399: }
1400:
1401: /*
1402: * The simplest argument parser available: Parse the remaining
1403: * words until the end of the phrase or line and return 0
1404: * or until the next macro, call that macro, and return 1.
1405: */
1406: static int
1.141 schwarze 1407: parse_rest(struct mdoc *mdoc, int tok, int line, int *pos, char *buf)
1.110 schwarze 1408: {
1409: int la;
1.1 kristaps 1410:
1411: for (;;) {
1412: la = *pos;
1.109 schwarze 1413: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.110 schwarze 1414: return(0);
1.109 schwarze 1415: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.110 schwarze 1416: return(1);
1.1 kristaps 1417: }
1.28 schwarze 1418: }
1419:
1.107 schwarze 1420: static void
1.28 schwarze 1421: ctx_synopsis(MACRO_PROT_ARGS)
1422: {
1.37 schwarze 1423:
1.107 schwarze 1424: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1425: in_line(mdoc, tok, line, ppos, pos, buf);
1426: else if (tok == MDOC_Nm)
1427: blk_full(mdoc, tok, line, ppos, pos, buf);
1428: else {
1429: assert(tok == MDOC_Vt);
1430: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1431: }
1.1 kristaps 1432: }
1433:
1.17 schwarze 1434: /*
1435: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1436: * They're unusual because they're basically free-form text until a
1437: * macro is encountered.
1438: */
1.107 schwarze 1439: static void
1.46 schwarze 1440: phrase_ta(MACRO_PROT_ARGS)
1441: {
1.141 schwarze 1442: struct roff_node *body, *n;
1.46 schwarze 1443:
1.78 schwarze 1444: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1445:
1.123 schwarze 1446: body = NULL;
1447: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 1448: if (n->flags & MDOC_ENDED)
1.123 schwarze 1449: continue;
1.140 schwarze 1450: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.123 schwarze 1451: body = n;
1452: if (n->tok == MDOC_Bl)
1453: break;
1454: }
1455:
1.107 schwarze 1456: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1457: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1458: line, ppos, "Ta");
1.107 schwarze 1459: return;
1.78 schwarze 1460: }
1.46 schwarze 1461:
1.78 schwarze 1462: /* Advance to the next column. */
1.106 schwarze 1463:
1.123 schwarze 1464: rew_last(mdoc, body);
1.106 schwarze 1465: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.110 schwarze 1466: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.46 schwarze 1467: }
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