Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.160
1.160 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.159 2015/10/12 00:07:27 schwarze Exp $ */
1.1 kristaps 2: /*
1.74 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.118 schwarze 4: * Copyright (c) 2010, 2012-2015 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.140 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"
1.146 schwarze 31: #include "roff_int.h"
1.1 kristaps 32: #include "libmdoc.h"
33:
1.107 schwarze 34: static void blk_full(MACRO_PROT_ARGS);
35: static void blk_exp_close(MACRO_PROT_ARGS);
36: static void blk_part_exp(MACRO_PROT_ARGS);
37: static void blk_part_imp(MACRO_PROT_ARGS);
38: static void ctx_synopsis(MACRO_PROT_ARGS);
39: static void in_line_eoln(MACRO_PROT_ARGS);
40: static void in_line_argn(MACRO_PROT_ARGS);
41: static void in_line(MACRO_PROT_ARGS);
42: static void phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 43:
1.145 schwarze 44: static void append_delims(struct roff_man *, int, int *, char *);
45: static void dword(struct roff_man *, int, int, const char *,
1.143 schwarze 46: enum mdelim, int);
1.145 schwarze 47: static int find_pending(struct roff_man *, int, int, int,
1.143 schwarze 48: struct roff_node *);
1.145 schwarze 49: static int lookup(struct roff_man *, int, int, int, const char *);
1.109 schwarze 50: static int macro_or_word(MACRO_PROT_ARGS, int);
1.145 schwarze 51: static int parse_rest(struct roff_man *, int, int, int *, char *);
1.141 schwarze 52: static int rew_alt(int);
1.145 schwarze 53: static void rew_elem(struct roff_man *, int);
54: static void rew_last(struct roff_man *, const struct roff_node *);
55: static void rew_pending(struct roff_man *,
56: const struct roff_node *);
1.1 kristaps 57:
58: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.80 schwarze 59: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 60: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
61: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
62: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.80 schwarze 63: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
64: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
65: { in_line_eoln, 0 }, /* Pp */
66: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
67: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 68: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.80 schwarze 69: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 70: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.80 schwarze 71: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
72: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
73: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
74: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 75: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.86 schwarze 76: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 77: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.80 schwarze 78: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
79: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 81: { in_line_eoln, 0 }, /* Ex */
1.80 schwarze 82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
83: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.80 schwarze 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.85 schwarze 87: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.11 schwarze 88: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.80 schwarze 89: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
90: { blk_full, MDOC_JOIN }, /* Nd */
91: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 92: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.89 schwarze 93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
95: { in_line_eoln, 0 }, /* Rv */
1.80 schwarze 96: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.80 schwarze 98: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.28 schwarze 99: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.80 schwarze 100: { in_line_eoln, MDOC_JOIN }, /* %A */
101: { in_line_eoln, MDOC_JOIN }, /* %B */
102: { in_line_eoln, MDOC_JOIN }, /* %D */
103: { in_line_eoln, MDOC_JOIN }, /* %I */
104: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 105: { in_line_eoln, 0 }, /* %N */
1.80 schwarze 106: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 107: { in_line_eoln, 0 }, /* %P */
1.80 schwarze 108: { in_line_eoln, MDOC_JOIN }, /* %R */
109: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 110: { in_line_eoln, 0 }, /* %V */
1.80 schwarze 111: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
112: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
113: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
114: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
115: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 116: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.80 schwarze 117: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
118: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
119: { blk_full, MDOC_EXPLICIT }, /* Bf */
120: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
121: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
122: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 123: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
124: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
125: { in_line_eoln, 0 }, /* Db */
1.80 schwarze 126: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
127: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
128: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
129: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
130: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
131: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
132: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
133: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 134: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
135: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 136: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.100 schwarze 137: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.80 schwarze 138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
139: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.80 schwarze 142: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
143: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.35 schwarze 144: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.80 schwarze 145: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
146: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
147: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
148: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
149: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
150: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
151: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
152: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
153: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
154: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 155: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.80 schwarze 156: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
157: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
158: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
159: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
160: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.103 schwarze 161: { in_line_argn, 0 }, /* Sm */
1.80 schwarze 162: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
163: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 164: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.80 schwarze 165: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 166: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
167: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.80 schwarze 168: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
169: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
170: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
171: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
172: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
173: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
174: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 175: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.80 schwarze 176: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 177: { in_line_eoln, 0 }, /* Bt */
178: { in_line_eoln, 0 }, /* Hf */
1.89 schwarze 179: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 180: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 181: { in_line, 0 }, /* Lb */
1.80 schwarze 182: { in_line_eoln, 0 }, /* Lp */
183: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
184: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
185: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
186: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
187: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
188: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
189: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
190: { in_line_eoln, MDOC_JOIN }, /* %C */
1.89 schwarze 191: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
192: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 193: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.80 schwarze 194: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.13 schwarze 195: { in_line_eoln, 0 }, /* br */
196: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 197: { in_line_eoln, 0 }, /* %U */
1.80 schwarze 198: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.99 schwarze 199: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 200: };
201:
202: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
203:
204:
205: /*
206: * This is called at the end of parsing. It must traverse up the tree,
207: * closing out open [implicit] scopes. Obviously, open explicit scopes
208: * are errors.
209: */
1.107 schwarze 210: void
1.151 schwarze 211: mdoc_endparse(struct roff_man *mdoc)
1.1 kristaps 212: {
1.141 schwarze 213: struct roff_node *n;
1.1 kristaps 214:
215: /* Scan for open explicit scopes. */
216:
1.107 schwarze 217: n = mdoc->last->flags & MDOC_VALID ?
1.88 schwarze 218: mdoc->last->parent : mdoc->last;
1.1 kristaps 219:
1.56 schwarze 220: for ( ; n; n = n->parent)
1.140 schwarze 221: if (n->type == ROFFT_BLOCK &&
1.107 schwarze 222: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.94 schwarze 223: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
224: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 225:
1.22 schwarze 226: /* Rewind to the first. */
227:
1.105 schwarze 228: rew_last(mdoc, mdoc->first);
1.1 kristaps 229: }
230:
1.22 schwarze 231: /*
1.109 schwarze 232: * Look up the macro at *p called by "from",
1.147 schwarze 233: * or as a line macro if from == TOKEN_NONE.
1.22 schwarze 234: */
1.141 schwarze 235: static int
1.145 schwarze 236: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.21 schwarze 237: {
1.141 schwarze 238: int res;
1.1 kristaps 239:
1.147 schwarze 240: if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
1.109 schwarze 241: res = mdoc_hash_find(p);
1.147 schwarze 242: if (res != TOKEN_NONE) {
1.111 schwarze 243: if (mdoc_macros[res].flags & MDOC_CALLABLE)
1.158 schwarze 244: return res;
1.111 schwarze 245: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
246: mandoc_msg(MANDOCERR_MACRO_CALL,
247: mdoc->parse, line, ppos, p);
248: }
1.109 schwarze 249: }
1.158 schwarze 250: return TOKEN_NONE;
1.1 kristaps 251: }
252:
1.122 schwarze 253: /*
254: * Rewind up to and including a specific node.
255: */
1.105 schwarze 256: static void
1.145 schwarze 257: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1 kristaps 258: {
1.155 schwarze 259: struct roff_node *np;
1.1 kristaps 260:
1.142 schwarze 261: if (to->flags & MDOC_VALID)
262: return;
263:
1.1 kristaps 264: while (mdoc->last != to) {
1.63 schwarze 265: /*
266: * Save the parent here, because we may delete the
1.76 schwarze 267: * mdoc->last node in the post-validation phase and reset
268: * it to mdoc->last->parent, causing a step in the closing
1.63 schwarze 269: * out to be lost.
270: */
271: np = mdoc->last->parent;
1.105 schwarze 272: mdoc_valid_post(mdoc);
1.63 schwarze 273: mdoc->last = np;
1.1 kristaps 274: assert(mdoc->last);
275: }
1.156 schwarze 276: mdoc->next = ROFF_NEXT_SIBLING;
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
1.145 schwarze 284: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.122 schwarze 285: {
286:
1.139 schwarze 287: for (;;) {
288: rew_last(mdoc, n);
289:
1.150 schwarze 290: if (mdoc->last == n) {
291: switch (n->type) {
292: case ROFFT_HEAD:
293: roff_body_alloc(mdoc, n->line, n->pos,
294: n->tok);
295: return;
296: case ROFFT_BLOCK:
297: break;
298: default:
299: return;
300: }
301: if ( ! (n->flags & MDOC_BROKEN))
302: return;
303: } else
304: n = mdoc->last;
1.122 schwarze 305:
1.139 schwarze 306: for (;;) {
307: if ((n = n->parent) == NULL)
308: return;
309:
1.140 schwarze 310: if (n->type == ROFFT_BLOCK ||
311: n->type == ROFFT_HEAD) {
1.139 schwarze 312: if (n->flags & MDOC_ENDED)
313: break;
314: else
315: return;
316: }
317: }
1.122 schwarze 318: }
319: }
320:
321: /*
1.48 schwarze 322: * For a block closing macro, return the corresponding opening one.
323: * Otherwise, return the macro itself.
1.22 schwarze 324: */
1.141 schwarze 325: static int
326: rew_alt(int tok)
1.1 kristaps 327: {
328: switch (tok) {
1.88 schwarze 329: case MDOC_Ac:
1.158 schwarze 330: return MDOC_Ao;
1.88 schwarze 331: case MDOC_Bc:
1.158 schwarze 332: return MDOC_Bo;
1.88 schwarze 333: case MDOC_Brc:
1.158 schwarze 334: return MDOC_Bro;
1.88 schwarze 335: case MDOC_Dc:
1.158 schwarze 336: return MDOC_Do;
1.88 schwarze 337: case MDOC_Ec:
1.158 schwarze 338: return MDOC_Eo;
1.88 schwarze 339: case MDOC_Ed:
1.158 schwarze 340: return MDOC_Bd;
1.88 schwarze 341: case MDOC_Ef:
1.158 schwarze 342: return MDOC_Bf;
1.88 schwarze 343: case MDOC_Ek:
1.158 schwarze 344: return MDOC_Bk;
1.88 schwarze 345: case MDOC_El:
1.158 schwarze 346: return MDOC_Bl;
1.88 schwarze 347: case MDOC_Fc:
1.158 schwarze 348: return MDOC_Fo;
1.88 schwarze 349: case MDOC_Oc:
1.158 schwarze 350: return MDOC_Oo;
1.88 schwarze 351: case MDOC_Pc:
1.158 schwarze 352: return MDOC_Po;
1.88 schwarze 353: case MDOC_Qc:
1.158 schwarze 354: return MDOC_Qo;
1.88 schwarze 355: case MDOC_Re:
1.158 schwarze 356: return MDOC_Rs;
1.88 schwarze 357: case MDOC_Sc:
1.158 schwarze 358: return MDOC_So;
1.88 schwarze 359: case MDOC_Xc:
1.158 schwarze 360: return MDOC_Xo;
1.1 kristaps 361: default:
1.158 schwarze 362: return tok;
1.1 kristaps 363: }
364: }
365:
1.105 schwarze 366: static void
1.145 schwarze 367: rew_elem(struct roff_man *mdoc, int tok)
1.1 kristaps 368: {
1.141 schwarze 369: struct roff_node *n;
1.1 kristaps 370:
371: n = mdoc->last;
1.140 schwarze 372: if (n->type != ROFFT_ELEM)
1.1 kristaps 373: n = n->parent;
1.140 schwarze 374: assert(n->type == ROFFT_ELEM);
1.1 kristaps 375: assert(tok == n->tok);
1.105 schwarze 376: rew_last(mdoc, n);
1.1 kristaps 377: }
378:
1.47 schwarze 379: /*
1.143 schwarze 380: * If there is an open sub-block of the target requiring
381: * explicit close-out, postpone closing out the target until
382: * the rew_pending() call closing out the sub-block.
383: */
384: static int
1.145 schwarze 385: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.143 schwarze 386: struct roff_node *target)
387: {
388: struct roff_node *n;
389: int irc;
390:
391: irc = 0;
392: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
393: if (n->flags & MDOC_ENDED) {
394: if ( ! (n->flags & MDOC_VALID))
395: n->flags |= MDOC_BROKEN;
396: continue;
397: }
398: if (n->type == ROFFT_BLOCK &&
399: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
400: irc = 1;
401: n->flags = MDOC_BROKEN;
402: if (target->type == ROFFT_HEAD)
403: target->flags = MDOC_ENDED;
404: else if ( ! (target->flags & MDOC_ENDED)) {
405: mandoc_vmsg(MANDOCERR_BLK_NEST,
406: mdoc->parse, line, ppos,
407: "%s breaks %s", mdoc_macronames[tok],
408: mdoc_macronames[n->tok]);
409: mdoc_endbody_alloc(mdoc, line, ppos,
410: tok, target, ENDBODY_NOSPACE);
411: }
412: }
413: }
1.158 schwarze 414: return irc;
1.143 schwarze 415: }
416:
417: /*
1.66 schwarze 418: * Allocate a word and check whether it's punctuation or not.
419: * Punctuation consists of those tokens found in mdoc_isdelim().
420: */
1.106 schwarze 421: static void
1.145 schwarze 422: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.80 schwarze 423: enum mdelim d, int may_append)
1.66 schwarze 424: {
1.88 schwarze 425:
1.106 schwarze 426: if (d == DELIM_MAX)
1.66 schwarze 427: d = mdoc_isdelim(p);
428:
1.80 schwarze 429: if (may_append &&
1.106 schwarze 430: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.140 schwarze 431: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.106 schwarze 432: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.148 schwarze 433: roff_word_append(mdoc, p);
1.106 schwarze 434: return;
1.80 schwarze 435: }
436:
1.148 schwarze 437: roff_word_alloc(mdoc, line, col, p);
1.66 schwarze 438:
1.71 schwarze 439: /*
1.100 schwarze 440: * If the word consists of a bare delimiter,
441: * flag the new node accordingly,
442: * unless doing so was vetoed by the invoking macro.
443: * Always clear the veto, it is only valid for one word.
1.71 schwarze 444: */
445:
1.100 schwarze 446: if (d == DELIM_OPEN)
447: mdoc->last->flags |= MDOC_DELIMO;
448: else if (d == DELIM_CLOSE &&
449: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 450: mdoc->last->parent->tok != MDOC_Fd)
1.76 schwarze 451: mdoc->last->flags |= MDOC_DELIMC;
1.100 schwarze 452: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 453: }
1.1 kristaps 454:
1.106 schwarze 455: static void
1.145 schwarze 456: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1 kristaps 457: {
1.109 schwarze 458: char *p;
1.42 schwarze 459: int la;
1.1 kristaps 460:
1.106 schwarze 461: if (buf[*pos] == '\0')
462: return;
1.1 kristaps 463:
464: for (;;) {
1.42 schwarze 465: la = *pos;
1.147 schwarze 466: if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
467: ARGS_EOLN)
1.1 kristaps 468: break;
1.80 schwarze 469: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 470:
1.42 schwarze 471: /*
472: * If we encounter end-of-sentence symbols, then trigger
473: * the double-space.
474: *
1.68 schwarze 475: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 476: * the last symbol, such that `. )' will cause the
477: * correct double-spacing. However, (1) groff isn't
478: * smart enough to do this and (2) it would require
479: * knowing which symbols break this behaviour, for
1.68 schwarze 480: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 481: */
1.106 schwarze 482:
1.84 schwarze 483: if (mandoc_eos(p, strlen(p)))
1.76 schwarze 484: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 485: }
486: }
487:
488: /*
1.109 schwarze 489: * Parse one word.
490: * If it is a macro, call it and return 1.
491: * Otherwise, allocate it and return 0.
492: */
493: static int
494: macro_or_word(MACRO_PROT_ARGS, int parsed)
495: {
496: char *p;
1.141 schwarze 497: int ntok;
1.109 schwarze 498:
499: p = buf + ppos;
1.147 schwarze 500: ntok = TOKEN_NONE;
1.113 schwarze 501: if (*p == '"')
1.109 schwarze 502: p++;
1.113 schwarze 503: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 504: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 505:
1.147 schwarze 506: if (ntok == TOKEN_NONE) {
507: dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.109 schwarze 508: mdoc_macros[tok].flags & MDOC_JOIN);
1.158 schwarze 509: return 0;
1.109 schwarze 510: } else {
511: if (mdoc_macros[tok].fp == in_line_eoln)
512: rew_elem(mdoc, tok);
513: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.147 schwarze 514: if (tok == TOKEN_NONE)
1.109 schwarze 515: append_delims(mdoc, line, pos, buf);
1.158 schwarze 516: return 1;
1.109 schwarze 517: }
518: }
519:
520: /*
1.88 schwarze 521: * Close out block partial/full explicit.
1.1 kristaps 522: */
1.107 schwarze 523: static void
1.1 kristaps 524: blk_exp_close(MACRO_PROT_ARGS)
525: {
1.141 schwarze 526: struct roff_node *body; /* Our own body. */
527: struct roff_node *endbody; /* Our own end marker. */
528: struct roff_node *itblk; /* An It block starting later. */
529: struct roff_node *later; /* A sub-block starting later. */
530: struct roff_node *n; /* Search back to our block. */
1.144 schwarze 531: struct roff_node *target; /* For find_pending(). */
1.47 schwarze 532:
1.144 schwarze 533: int j, lastarg, maxargs, nl, pending;
1.36 schwarze 534: enum margserr ac;
1.141 schwarze 535: int atok, ntok;
1.1 kristaps 536: char *p;
537:
1.76 schwarze 538: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 539:
1.1 kristaps 540: switch (tok) {
1.88 schwarze 541: case MDOC_Ec:
1.1 kristaps 542: maxargs = 1;
543: break;
1.88 schwarze 544: case MDOC_Ek:
1.82 schwarze 545: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 546: /* FALLTHROUGH */
1.1 kristaps 547: default:
548: maxargs = 0;
549: break;
550: }
551:
1.47 schwarze 552: /*
553: * Search backwards for beginnings of blocks,
554: * both of our own and of pending sub-blocks.
555: */
1.107 schwarze 556:
1.47 schwarze 557: atok = rew_alt(tok);
1.127 schwarze 558: body = endbody = itblk = later = NULL;
1.76 schwarze 559: for (n = mdoc->last; n; n = n->parent) {
1.139 schwarze 560: if (n->flags & MDOC_ENDED) {
561: if ( ! (n->flags & MDOC_VALID))
562: n->flags |= MDOC_BROKEN;
1.47 schwarze 563: continue;
1.139 schwarze 564: }
1.47 schwarze 565:
566: /* Remember the start of our own body. */
1.107 schwarze 567:
1.140 schwarze 568: if (n->type == ROFFT_BODY && atok == n->tok) {
1.131 schwarze 569: if (n->end == ENDBODY_NOT)
1.47 schwarze 570: body = n;
571: continue;
572: }
573:
1.140 schwarze 574: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.47 schwarze 575: continue;
1.116 schwarze 576:
577: if (n->tok == MDOC_It) {
1.127 schwarze 578: itblk = n;
1.116 schwarze 579: continue;
580: }
581:
1.47 schwarze 582: if (atok == n->tok) {
583: assert(body);
584:
585: /*
586: * Found the start of our own block.
587: * When there is no pending sub block,
588: * just proceed to closing out.
589: */
1.107 schwarze 590:
1.116 schwarze 591: if (later == NULL ||
1.127 schwarze 592: (tok == MDOC_El && itblk == NULL))
1.47 schwarze 593: break;
594:
1.88 schwarze 595: /*
1.123 schwarze 596: * When there is a pending sub block, postpone
597: * closing out the current block until the
598: * rew_pending() closing out the sub-block.
1.47 schwarze 599: * Mark the place where the formatting - but not
600: * the scope - of the current block ends.
601: */
1.107 schwarze 602:
1.139 schwarze 603: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
604: line, ppos, "%s breaks %s",
605: mdoc_macronames[atok],
606: mdoc_macronames[later->tok]);
607:
1.122 schwarze 608: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.106 schwarze 609: atok, body, ENDBODY_SPACE);
1.107 schwarze 610:
1.139 schwarze 611: if (tok == MDOC_El)
612: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
613:
1.107 schwarze 614: /*
615: * If a block closing macro taking arguments
616: * breaks another block, put the arguments
1.122 schwarze 617: * into the end marker.
1.107 schwarze 618: */
619:
1.122 schwarze 620: if (maxargs)
1.145 schwarze 621: mdoc->next = ROFF_NEXT_CHILD;
1.47 schwarze 622: break;
1.138 schwarze 623: }
624:
625: /* Explicit blocks close out description lines. */
626:
627: if (n->tok == MDOC_Nd) {
628: rew_last(mdoc, n);
629: continue;
1.47 schwarze 630: }
631:
1.139 schwarze 632: /* Breaking an open sub block. */
1.107 schwarze 633:
1.139 schwarze 634: n->flags |= MDOC_BROKEN;
635: if (later == NULL)
1.47 schwarze 636: later = n;
637: }
1.122 schwarze 638:
639: if (body == NULL) {
640: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
641: line, ppos, mdoc_macronames[tok]);
1.152 schwarze 642: if (later != NULL)
643: later->flags &= ~MDOC_BROKEN;
1.122 schwarze 644: if (maxargs && endbody == NULL) {
645: /*
646: * Stray .Ec without previous .Eo:
647: * Break the output line, keep the arguments.
648: */
1.149 schwarze 649: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.122 schwarze 650: rew_elem(mdoc, MDOC_br);
651: }
652: } else if (endbody == NULL) {
653: rew_last(mdoc, body);
654: if (maxargs)
655: mdoc_tail_alloc(mdoc, line, ppos, atok);
656: }
1.47 schwarze 657:
1.106 schwarze 658: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
659: if (buf[*pos] != '\0')
1.93 schwarze 660: mandoc_vmsg(MANDOCERR_ARG_SKIP,
661: mdoc->parse, line, ppos,
662: "%s %s", mdoc_macronames[tok],
663: buf + *pos);
1.127 schwarze 664: if (endbody == NULL && n != NULL)
1.123 schwarze 665: rew_pending(mdoc, n);
1.107 schwarze 666: return;
1.1 kristaps 667: }
668:
1.122 schwarze 669: if (endbody != NULL)
670: n = endbody;
1.153 schwarze 671:
672: ntok = TOKEN_NONE;
1.104 schwarze 673: for (j = 0; ; j++) {
1.1 kristaps 674: lastarg = *pos;
675:
1.142 schwarze 676: if (j == maxargs && n != NULL)
677: rew_last(mdoc, n);
1.1 kristaps 678:
1.76 schwarze 679: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 680: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 681: break;
682:
1.147 schwarze 683: ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.111 schwarze 684: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 685:
1.147 schwarze 686: if (ntok == TOKEN_NONE) {
1.106 schwarze 687: dword(mdoc, line, lastarg, p, DELIM_MAX,
688: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 689: continue;
690: }
1.1 kristaps 691:
1.142 schwarze 692: if (n != NULL)
693: rew_last(mdoc, n);
1.79 schwarze 694: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 695: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 696: break;
1.1 kristaps 697: }
698:
1.144 schwarze 699: if (n != NULL) {
1.153 schwarze 700: if (ntok != TOKEN_NONE && n->flags & MDOC_BROKEN) {
1.144 schwarze 701: target = n;
702: do
703: target = target->parent;
704: while ( ! (target->flags & MDOC_ENDED));
705: pending = find_pending(mdoc, ntok, line, ppos,
706: target);
707: } else
708: pending = 0;
709: if ( ! pending)
710: rew_pending(mdoc, n);
711: }
1.106 schwarze 712: if (nl)
713: append_delims(mdoc, line, pos, buf);
1.1 kristaps 714: }
715:
1.107 schwarze 716: static void
1.1 kristaps 717: in_line(MACRO_PROT_ARGS)
718: {
1.100 schwarze 719: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.141 schwarze 720: int ntok;
1.36 schwarze 721: enum margserr ac;
1.40 schwarze 722: enum mdelim d;
1.36 schwarze 723: struct mdoc_arg *arg;
724: char *p;
1.1 kristaps 725:
1.76 schwarze 726: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 727:
1.1 kristaps 728: /*
729: * Whether we allow ignored elements (those without content,
730: * usually because of reserved words) to squeak by.
731: */
1.32 schwarze 732:
1.1 kristaps 733: switch (tok) {
1.88 schwarze 734: case MDOC_An:
735: case MDOC_Ar:
736: case MDOC_Fl:
737: case MDOC_Mt:
738: case MDOC_Nm:
739: case MDOC_Pa:
1.1 kristaps 740: nc = 1;
741: break;
742: default:
743: nc = 0;
744: break;
745: }
746:
1.108 schwarze 747: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 748:
1.100 schwarze 749: d = DELIM_NONE;
750: firstarg = 1;
1.98 schwarze 751: mayopen = 1;
1.45 schwarze 752: for (cnt = scope = 0;; ) {
1.1 kristaps 753: la = *pos;
1.76 schwarze 754: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 755:
1.100 schwarze 756: /*
757: * At the end of a macro line,
758: * opening delimiters do not suppress spacing.
759: */
760:
761: if (ac == ARGS_EOLN) {
762: if (d == DELIM_OPEN)
763: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 764: break;
1.100 schwarze 765: }
766:
767: /*
768: * The rest of the macro line is only punctuation,
769: * to be handled by append_delims().
770: * If there were no other arguments,
771: * do not allow the first one to suppress spacing,
772: * even if it turns out to be a closing one.
773: */
774:
775: if (ac == ARGS_PUNCT) {
1.132 schwarze 776: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.100 schwarze 777: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 778: break;
1.100 schwarze 779: }
1.1 kristaps 780:
1.101 schwarze 781: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.147 schwarze 782: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1 kristaps 783:
1.88 schwarze 784: /*
1.1 kristaps 785: * In this case, we've located a submacro and must
786: * execute it. Close out scope, if open. If no
787: * elements have been generated, either create one (nc)
788: * or raise a warning.
789: */
790:
1.147 schwarze 791: if (ntok != TOKEN_NONE) {
1.105 schwarze 792: if (scope)
793: rew_elem(mdoc, tok);
1.106 schwarze 794: if (nc && ! cnt) {
795: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 796: rew_last(mdoc, mdoc->last);
1.106 schwarze 797: } else if ( ! nc && ! cnt) {
1.1 kristaps 798: mdoc_argv_free(arg);
1.92 schwarze 799: mandoc_msg(MANDOCERR_MACRO_EMPTY,
800: mdoc->parse, line, ppos,
801: mdoc_macronames[tok]);
1.1 kristaps 802: }
1.107 schwarze 803: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 804: if (nl)
805: append_delims(mdoc, line, pos, buf);
1.107 schwarze 806: return;
1.88 schwarze 807: }
1.1 kristaps 808:
1.88 schwarze 809: /*
1.1 kristaps 810: * Non-quote-enclosed punctuation. Set up our scope, if
811: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 812: * the word.
1.1 kristaps 813: */
814:
1.106 schwarze 815: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 816:
1.45 schwarze 817: if (DELIM_NONE != d) {
818: /*
819: * If we encounter closing punctuation, no word
1.100 schwarze 820: * has been emitted, no scope is open, and we're
1.45 schwarze 821: * allowed to have an empty element, then start
1.98 schwarze 822: * a new scope.
1.45 schwarze 823: */
1.98 schwarze 824: if ((d == DELIM_CLOSE ||
825: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 826: !cnt && !scope && nc && mayopen) {
1.106 schwarze 827: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 828: scope = 1;
1.98 schwarze 829: cnt++;
1.106 schwarze 830: if (tok == MDOC_Nm)
1.98 schwarze 831: mayopen = 0;
1.45 schwarze 832: }
833: /*
834: * Close out our scope, if one is open, before
835: * any punctuation.
836: */
1.105 schwarze 837: if (scope)
838: rew_elem(mdoc, tok);
1.45 schwarze 839: scope = 0;
1.101 schwarze 840: if (tok == MDOC_Fn)
841: mayopen = 0;
1.98 schwarze 842: } else if (mayopen && !scope) {
1.106 schwarze 843: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 844: scope = 1;
1.98 schwarze 845: cnt++;
1.1 kristaps 846: }
1.66 schwarze 847:
1.106 schwarze 848: dword(mdoc, line, la, p, d,
849: MDOC_JOIN & mdoc_macros[tok].flags);
1.27 schwarze 850:
851: /*
1.100 schwarze 852: * If the first argument is a closing delimiter,
853: * do not suppress spacing before it.
854: */
855:
856: if (firstarg && d == DELIM_CLOSE && !nc)
857: mdoc->last->flags &= ~MDOC_DELIMC;
858: firstarg = 0;
859:
860: /*
1.27 schwarze 861: * `Fl' macros have their scope re-opened with each new
862: * word so that the `-' can be added to each one without
863: * having to parse out spaces.
864: */
1.106 schwarze 865: if (scope && tok == MDOC_Fl) {
1.105 schwarze 866: rew_elem(mdoc, tok);
1.45 schwarze 867: scope = 0;
1.27 schwarze 868: }
1.1 kristaps 869: }
870:
1.105 schwarze 871: if (scope)
872: rew_elem(mdoc, tok);
1.1 kristaps 873:
874: /*
875: * If no elements have been collected and we're allowed to have
876: * empties (nc), open a scope and close it out. Otherwise,
877: * raise a warning.
878: */
1.32 schwarze 879:
1.106 schwarze 880: if ( ! cnt) {
881: if (nc) {
882: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
883: rew_last(mdoc, mdoc->last);
884: } else {
885: mdoc_argv_free(arg);
886: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
887: line, ppos, mdoc_macronames[tok]);
888: }
1.1 kristaps 889: }
1.106 schwarze 890: if (nl)
891: append_delims(mdoc, line, pos, buf);
1.1 kristaps 892: }
893:
1.107 schwarze 894: static void
1.1 kristaps 895: blk_full(MACRO_PROT_ARGS)
896: {
1.109 schwarze 897: int la, nl, parsed;
1.1 kristaps 898: struct mdoc_arg *arg;
1.141 schwarze 899: struct roff_node *blk; /* Our own or a broken block. */
900: struct roff_node *head; /* Our own head. */
901: struct roff_node *body; /* Our own body. */
902: struct roff_node *n;
1.37 schwarze 903: enum margserr ac, lac;
1.1 kristaps 904: char *p;
905:
1.76 schwarze 906: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 907:
1.133 schwarze 908: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
909: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
910: line, ppos, mdoc_macronames[tok]);
911: return;
912: }
913:
1.127 schwarze 914: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
915:
916: /* Here, tok is one of Sh Ss Nm Nd It. */
917:
918: blk = NULL;
919: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 920: if (n->flags & MDOC_ENDED) {
921: if ( ! (n->flags & MDOC_VALID))
922: n->flags |= MDOC_BROKEN;
923: continue;
924: }
1.140 schwarze 925: if (n->type != ROFFT_BLOCK)
1.127 schwarze 926: continue;
1.139 schwarze 927:
1.127 schwarze 928: if (tok == MDOC_It && n->tok == MDOC_Bl) {
929: if (blk != NULL) {
930: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
931: mdoc->parse, line, ppos,
932: "It breaks %s",
933: mdoc_macronames[blk->tok]);
934: rew_pending(mdoc, blk);
935: }
936: break;
937: }
938:
939: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
940: switch (tok) {
941: case MDOC_Sh:
942: case MDOC_Ss:
943: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
944: mdoc->parse, line, ppos,
945: "%s breaks %s",
946: mdoc_macronames[tok],
947: mdoc_macronames[n->tok]);
948: rew_pending(mdoc, n);
1.136 schwarze 949: n = mdoc->last;
1.127 schwarze 950: continue;
951: case MDOC_It:
952: /* Delay in case it's astray. */
953: blk = n;
954: continue;
955: default:
956: break;
957: }
958: break;
959: }
960:
961: /* Here, n is one of Sh Ss Nm Nd It. */
1.95 schwarze 962:
1.127 schwarze 963: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
964: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
965: (tok != MDOC_It && n->tok == MDOC_It)))))
1.95 schwarze 966: break;
1.127 schwarze 967:
968: /* Item breaking an explicit block. */
969:
970: if (blk != NULL) {
971: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
972: mdoc->parse, line, ppos,
973: "It breaks %s",
974: mdoc_macronames[blk->tok]);
975: rew_pending(mdoc, blk);
1.128 schwarze 976: blk = NULL;
1.127 schwarze 977: }
978:
979: /* Close out prior implicit scopes. */
980:
981: rew_last(mdoc, n);
982: }
983:
984: /* Skip items outside lists. */
985:
986: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.95 schwarze 987: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
988: line, ppos, "It %s", buf + *pos);
1.149 schwarze 989: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.105 schwarze 990: rew_elem(mdoc, MDOC_br);
1.107 schwarze 991: return;
1.95 schwarze 992: }
1.1 kristaps 993: }
994:
1.32 schwarze 995: /*
1.68 schwarze 996: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 997: * macro openings. Implicit ones first close out prior scope
998: * (seen above). Delay opening the head until necessary to
999: * allow leading punctuation to print. Special consideration
1000: * for `It -column', which has phrase-part syntax instead of
1001: * regular child nodes.
1002: */
1003:
1.108 schwarze 1004: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.121 schwarze 1005: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1006: head = body = NULL;
1.1 kristaps 1007:
1.32 schwarze 1008: /*
1.73 schwarze 1009: * Exception: Heads of `It' macros in `-diag' lists are not
1010: * parsed, even though `It' macros in general are parsed.
1011: */
1.107 schwarze 1012:
1.109 schwarze 1013: parsed = tok != MDOC_It ||
1014: mdoc->last->parent->tok != MDOC_Bl ||
1015: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1016:
1017: /*
1.32 schwarze 1018: * The `Nd' macro has all arguments in its body: it's a hybrid
1019: * of block partial-explicit and full-implicit. Stupid.
1020: */
1.12 schwarze 1021:
1.106 schwarze 1022: if (tok == MDOC_Nd) {
1.146 schwarze 1023: head = roff_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 1024: rew_last(mdoc, head);
1.146 schwarze 1025: body = roff_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1026: }
1027:
1.106 schwarze 1028: if (tok == MDOC_Bk)
1.80 schwarze 1029: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1030:
1.106 schwarze 1031: ac = ARGS_PEND;
1032: for (;;) {
1.32 schwarze 1033: la = *pos;
1.106 schwarze 1034: lac = ac;
1.76 schwarze 1035: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1036: if (ac == ARGS_EOLN) {
1037: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.46 schwarze 1038: break;
1039: /*
1040: * This is necessary: if the last token on a
1041: * line is a `Ta' or tab, then we'll get
1042: * ARGS_EOLN, so we must be smart enough to
1043: * reopen our scope if the last parse was a
1044: * phrase or partial phrase.
1045: */
1.123 schwarze 1046: if (body != NULL)
1047: rew_last(mdoc, body);
1.146 schwarze 1048: body = roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1049: break;
1.41 schwarze 1050: }
1.130 schwarze 1051: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1052: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1053: mdoc->parse, line, la, "%s ... %s",
1054: mdoc_macronames[tok], buf + la);
1055: break;
1056: }
1.129 schwarze 1057: if (tok == MDOC_Rs) {
1058: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1059: line, la, "Rs %s", buf + la);
1060: break;
1061: }
1062: if (ac == ARGS_PUNCT)
1063: break;
1.41 schwarze 1064:
1.88 schwarze 1065: /*
1.46 schwarze 1066: * Emit leading punctuation (i.e., punctuation before
1.140 schwarze 1067: * the ROFFT_HEAD) for non-phrase types.
1.46 schwarze 1068: */
1.32 schwarze 1069:
1.106 schwarze 1070: if (head == NULL &&
1071: ac != ARGS_PEND &&
1072: ac != ARGS_PHRASE &&
1073: ac != ARGS_PPHRASE &&
1074: ac != ARGS_QWORD &&
1075: mdoc_isdelim(p) == DELIM_OPEN) {
1076: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1077: continue;
1078: }
1079:
1.46 schwarze 1080: /* Open a head if one hasn't been opened. */
1.32 schwarze 1081:
1.106 schwarze 1082: if (head == NULL)
1.146 schwarze 1083: head = roff_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1084:
1.106 schwarze 1085: if (ac == ARGS_PHRASE ||
1086: ac == ARGS_PEND ||
1087: ac == ARGS_PPHRASE) {
1.107 schwarze 1088:
1.46 schwarze 1089: /*
1090: * If we haven't opened a body yet, rewind the
1091: * head; if we have, rewind that instead.
1092: */
1093:
1.123 schwarze 1094: rew_last(mdoc, body == NULL ? head : body);
1.146 schwarze 1095: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1096:
1097: /*
1098: * Process phrases: set whether we're in a
1099: * partial-phrase (this effects line handling)
1100: * then call down into the phrase parser.
1101: */
1102:
1.106 schwarze 1103: if (ac == ARGS_PPHRASE)
1.76 schwarze 1104: mdoc->flags |= MDOC_PPHRASE;
1.106 schwarze 1105: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.76 schwarze 1106: mdoc->flags |= MDOC_PPHRASE;
1.147 schwarze 1107: parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.76 schwarze 1108: mdoc->flags &= ~MDOC_PPHRASE;
1.160 ! schwarze 1109:
! 1110: /* There may have been `Ta' macros. */
! 1111:
! 1112: while (body->next != NULL)
! 1113: body = body->next;
1.1 kristaps 1114: continue;
1115: }
1116:
1.109 schwarze 1117: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1118: break;
1.32 schwarze 1119: }
1.1 kristaps 1120:
1.121 schwarze 1121: if (blk->flags & MDOC_VALID)
1122: return;
1.106 schwarze 1123: if (head == NULL)
1.146 schwarze 1124: head = roff_head_alloc(mdoc, line, ppos, tok);
1.130 schwarze 1125: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.106 schwarze 1126: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1127: if (body != NULL)
1.46 schwarze 1128: goto out;
1.143 schwarze 1129: if (find_pending(mdoc, tok, line, ppos, head))
1.139 schwarze 1130: return;
1.54 schwarze 1131:
1.32 schwarze 1132: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1133:
1.123 schwarze 1134: rew_last(mdoc, head);
1.146 schwarze 1135: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1136: out:
1.106 schwarze 1137: if (mdoc->flags & MDOC_FREECOL) {
1.123 schwarze 1138: rew_last(mdoc, body);
1139: rew_last(mdoc, blk);
1.106 schwarze 1140: mdoc->flags &= ~MDOC_FREECOL;
1141: }
1.1 kristaps 1142: }
1143:
1.107 schwarze 1144: static void
1.1 kristaps 1145: blk_part_imp(MACRO_PROT_ARGS)
1146: {
1.43 schwarze 1147: int la, nl;
1.36 schwarze 1148: enum margserr ac;
1.1 kristaps 1149: char *p;
1.141 schwarze 1150: struct roff_node *blk; /* saved block context */
1151: struct roff_node *body; /* saved body context */
1152: struct roff_node *n;
1.1 kristaps 1153:
1.76 schwarze 1154: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1155:
1.32 schwarze 1156: /*
1157: * A macro that spans to the end of the line. This is generally
1158: * (but not necessarily) called as the first macro. The block
1159: * has a head as the immediate child, which is always empty,
1160: * followed by zero or more opening punctuation nodes, then the
1161: * body (which may be empty, depending on the macro), then zero
1162: * or more closing punctuation nodes.
1163: */
1.22 schwarze 1164:
1.106 schwarze 1165: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.146 schwarze 1166: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1167:
1.32 schwarze 1168: /*
1169: * Open the body scope "on-demand", that is, after we've
1170: * processed all our the leading delimiters (open parenthesis,
1171: * etc.).
1172: */
1.1 kristaps 1173:
1.32 schwarze 1174: for (body = NULL; ; ) {
1.22 schwarze 1175: la = *pos;
1.76 schwarze 1176: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1177: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1178: break;
1179:
1.106 schwarze 1180: if (body == NULL && ac != ARGS_QWORD &&
1181: mdoc_isdelim(p) == DELIM_OPEN) {
1182: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1183: continue;
1.80 schwarze 1184: }
1.1 kristaps 1185:
1.106 schwarze 1186: if (body == NULL)
1.146 schwarze 1187: body = roff_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1188:
1.109 schwarze 1189: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1190: break;
1.32 schwarze 1191: }
1.106 schwarze 1192: if (body == NULL)
1.146 schwarze 1193: body = roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1194:
1.143 schwarze 1195: if (find_pending(mdoc, tok, line, ppos, body))
1.139 schwarze 1196: return;
1197:
1.120 schwarze 1198: rew_last(mdoc, body);
1.106 schwarze 1199: if (nl)
1200: append_delims(mdoc, line, pos, buf);
1.122 schwarze 1201: rew_pending(mdoc, blk);
1.74 schwarze 1202:
1203: /* Move trailing .Ns out of scope. */
1204:
1205: for (n = body->child; n && n->next; n = n->next)
1206: /* Do nothing. */ ;
1.106 schwarze 1207: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1208: mdoc_node_relink(mdoc, n);
1.1 kristaps 1209: }
1210:
1.107 schwarze 1211: static void
1.1 kristaps 1212: blk_part_exp(MACRO_PROT_ARGS)
1213: {
1.37 schwarze 1214: int la, nl;
1.36 schwarze 1215: enum margserr ac;
1.141 schwarze 1216: struct roff_node *head; /* keep track of head */
1.1 kristaps 1217: char *p;
1218:
1.76 schwarze 1219: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1220:
1.32 schwarze 1221: /*
1222: * The opening of an explicit macro having zero or more leading
1223: * punctuation nodes; a head with optional single element (the
1224: * case of `Eo'); and a body that may be empty.
1225: */
1.22 schwarze 1226:
1.149 schwarze 1227: roff_block_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1228: head = NULL;
1229: for (;;) {
1.22 schwarze 1230: la = *pos;
1.76 schwarze 1231: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1232: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1233: break;
1234:
1.32 schwarze 1235: /* Flush out leading punctuation. */
1236:
1.106 schwarze 1237: if (head == NULL && ac != ARGS_QWORD &&
1238: mdoc_isdelim(p) == DELIM_OPEN) {
1239: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1240: continue;
1.80 schwarze 1241: }
1.32 schwarze 1242:
1.106 schwarze 1243: if (head == NULL) {
1.146 schwarze 1244: head = roff_head_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1245: if (tok == MDOC_Eo) /* Not parsed. */
1.106 schwarze 1246: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.119 schwarze 1247: rew_last(mdoc, head);
1.146 schwarze 1248: roff_body_alloc(mdoc, line, ppos, tok);
1.106 schwarze 1249: if (tok == MDOC_Eo)
1.32 schwarze 1250: continue;
1251: }
1252:
1.109 schwarze 1253: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1254: break;
1.1 kristaps 1255: }
1256:
1.32 schwarze 1257: /* Clean-up to leave in a consistent state. */
1258:
1.119 schwarze 1259: if (head == NULL) {
1.146 schwarze 1260: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1261: roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1262: }
1.106 schwarze 1263: if (nl)
1264: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1265: }
1266:
1.107 schwarze 1267: static void
1.1 kristaps 1268: in_line_argn(MACRO_PROT_ARGS)
1269: {
1.36 schwarze 1270: struct mdoc_arg *arg;
1271: char *p;
1.137 schwarze 1272: enum margserr ac;
1.141 schwarze 1273: int ntok;
1.137 schwarze 1274: int state; /* arg#; -1: not yet open; -2: closed */
1275: int la, maxargs, nl;
1.1 kristaps 1276:
1.112 schwarze 1277: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1278:
1.32 schwarze 1279: /*
1280: * A line macro that has a fixed number of arguments (maxargs).
1281: * Only open the scope once the first non-leading-punctuation is
1282: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1283: * keep it open until the maximum number of arguments are
1284: * exhausted.
1285: */
1.1 kristaps 1286:
1287: switch (tok) {
1.88 schwarze 1288: case MDOC_Ap:
1289: case MDOC_Ns:
1290: case MDOC_Ux:
1.1 kristaps 1291: maxargs = 0;
1292: break;
1.88 schwarze 1293: case MDOC_Bx:
1.89 schwarze 1294: case MDOC_Es:
1.88 schwarze 1295: case MDOC_Xr:
1.28 schwarze 1296: maxargs = 2;
1297: break;
1.1 kristaps 1298: default:
1299: maxargs = 1;
1300: break;
1301: }
1302:
1.108 schwarze 1303: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1304:
1.137 schwarze 1305: state = -1;
1.112 schwarze 1306: p = NULL;
1307: for (;;) {
1.22 schwarze 1308: la = *pos;
1.76 schwarze 1309: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.137 schwarze 1310:
1311: if (ac == ARGS_WORD && state == -1 &&
1312: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1313: mdoc_isdelim(p) == DELIM_OPEN) {
1314: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1315: continue;
1316: }
1317:
1318: if (state == -1 && tok != MDOC_In &&
1319: tok != MDOC_St && tok != MDOC_Xr) {
1320: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1321: state = 0;
1322: }
1323:
1.112 schwarze 1324: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.137 schwarze 1325: if (abs(state) < 2 && tok == MDOC_Pf)
1.112 schwarze 1326: mandoc_vmsg(MANDOCERR_PF_SKIP,
1327: mdoc->parse, line, ppos, "Pf %s",
1328: p == NULL ? "at eol" : p);
1.1 kristaps 1329: break;
1.112 schwarze 1330: }
1.1 kristaps 1331:
1.137 schwarze 1332: if (state == maxargs) {
1.105 schwarze 1333: rew_elem(mdoc, tok);
1.137 schwarze 1334: state = -2;
1.32 schwarze 1335: }
1336:
1.137 schwarze 1337: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.147 schwarze 1338: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1339:
1.147 schwarze 1340: if (ntok != TOKEN_NONE) {
1.137 schwarze 1341: if (state >= 0) {
1.105 schwarze 1342: rew_elem(mdoc, tok);
1.137 schwarze 1343: state = -2;
1344: }
1.107 schwarze 1345: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1346: break;
1347: }
1348:
1.137 schwarze 1349: if (ac == ARGS_QWORD ||
1350: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1351: mdoc_isdelim(p) == DELIM_NONE) {
1352: if (state == -1) {
1353: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1354: state = 1;
1355: } else if (state >= 0)
1356: state++;
1357: } else if (state >= 0) {
1.105 schwarze 1358: rew_elem(mdoc, tok);
1.137 schwarze 1359: state = -2;
1.28 schwarze 1360: }
1361:
1.106 schwarze 1362: dword(mdoc, line, la, p, DELIM_MAX,
1363: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1364: }
1365:
1.137 schwarze 1366: if (state == -1) {
1367: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1368: line, ppos, mdoc_macronames[tok]);
1369: return;
1.112 schwarze 1370: }
1.137 schwarze 1371:
1372: if (state == 0 && tok == MDOC_Pf)
1373: append_delims(mdoc, line, pos, buf);
1374: if (state >= 0)
1.105 schwarze 1375: rew_elem(mdoc, tok);
1.106 schwarze 1376: if (nl)
1377: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1378: }
1379:
1.107 schwarze 1380: static void
1.1 kristaps 1381: in_line_eoln(MACRO_PROT_ARGS)
1382: {
1.141 schwarze 1383: struct roff_node *n;
1.126 schwarze 1384: struct mdoc_arg *arg;
1.1 kristaps 1385:
1.126 schwarze 1386: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1387: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1388: n = mdoc->last;
1.145 schwarze 1389: if (mdoc->next == ROFF_NEXT_SIBLING)
1.126 schwarze 1390: n = n->parent;
1391: if (n->tok == MDOC_Nm)
1.154 schwarze 1392: rew_last(mdoc, n->parent);
1.134 schwarze 1393: }
1394:
1.135 schwarze 1395: if (buf[*pos] == '\0' &&
1396: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.134 schwarze 1397: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.135 schwarze 1398: line, ppos, mdoc_macronames[tok]);
1.134 schwarze 1399: return;
1.126 schwarze 1400: }
1.53 schwarze 1401:
1.108 schwarze 1402: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1403: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1404: if (parse_rest(mdoc, tok, line, pos, buf))
1405: return;
1406: rew_elem(mdoc, tok);
1407: }
1408:
1409: /*
1410: * The simplest argument parser available: Parse the remaining
1411: * words until the end of the phrase or line and return 0
1412: * or until the next macro, call that macro, and return 1.
1413: */
1414: static int
1.145 schwarze 1415: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.110 schwarze 1416: {
1417: int la;
1.1 kristaps 1418:
1419: for (;;) {
1420: la = *pos;
1.109 schwarze 1421: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.158 schwarze 1422: return 0;
1.109 schwarze 1423: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.158 schwarze 1424: return 1;
1.1 kristaps 1425: }
1.28 schwarze 1426: }
1427:
1.107 schwarze 1428: static void
1.28 schwarze 1429: ctx_synopsis(MACRO_PROT_ARGS)
1430: {
1.37 schwarze 1431:
1.107 schwarze 1432: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1433: in_line(mdoc, tok, line, ppos, pos, buf);
1434: else if (tok == MDOC_Nm)
1435: blk_full(mdoc, tok, line, ppos, pos, buf);
1436: else {
1437: assert(tok == MDOC_Vt);
1438: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1439: }
1.1 kristaps 1440: }
1441:
1.17 schwarze 1442: /*
1443: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1444: * They're unusual because they're basically free-form text until a
1445: * macro is encountered.
1446: */
1.107 schwarze 1447: static void
1.46 schwarze 1448: phrase_ta(MACRO_PROT_ARGS)
1449: {
1.141 schwarze 1450: struct roff_node *body, *n;
1.46 schwarze 1451:
1.78 schwarze 1452: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1453:
1.123 schwarze 1454: body = NULL;
1455: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 1456: if (n->flags & MDOC_ENDED)
1.123 schwarze 1457: continue;
1.140 schwarze 1458: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.123 schwarze 1459: body = n;
1460: if (n->tok == MDOC_Bl)
1461: break;
1462: }
1463:
1.107 schwarze 1464: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1465: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1466: line, ppos, "Ta");
1.107 schwarze 1467: return;
1.78 schwarze 1468: }
1.46 schwarze 1469:
1.78 schwarze 1470: /* Advance to the next column. */
1.106 schwarze 1471:
1.123 schwarze 1472: rew_last(mdoc, body);
1.146 schwarze 1473: roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.147 schwarze 1474: parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.46 schwarze 1475: }
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