Annotation of mandoc/mdoc_macro.c, Revision 1.186
1.186 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.185 2015/04/02 22:48:17 schwarze Exp $ */
1.1 kristaps 2: /*
1.116 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.162 schwarze 4: * Copyright (c) 2010, 2012-2015 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.184 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.8 kristaps 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.184 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.8 kristaps 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.40 kristaps 18: #include "config.h"
1.140 schwarze 19:
20: #include <sys/types.h>
1.40 kristaps 21:
1.1 kristaps 22: #include <assert.h>
23: #include <ctype.h>
24: #include <stdlib.h>
25: #include <stdio.h>
26: #include <string.h>
1.38 kristaps 27: #include <time.h>
1.1 kristaps 28:
1.184 schwarze 29: #include "mandoc.h"
30: #include "roff.h"
1.106 kristaps 31: #include "mdoc.h"
1.184 schwarze 32: #include "libmandoc.h"
1.1 kristaps 33: #include "libmdoc.h"
34:
1.151 schwarze 35: static void blk_full(MACRO_PROT_ARGS);
36: static void blk_exp_close(MACRO_PROT_ARGS);
37: static void blk_part_exp(MACRO_PROT_ARGS);
38: static void blk_part_imp(MACRO_PROT_ARGS);
39: static void ctx_synopsis(MACRO_PROT_ARGS);
40: static void in_line_eoln(MACRO_PROT_ARGS);
41: static void in_line_argn(MACRO_PROT_ARGS);
42: static void in_line(MACRO_PROT_ARGS);
43: static void phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 44:
1.150 schwarze 45: static void dword(struct mdoc *, int, int, const char *,
1.123 schwarze 46: enum mdelim, int);
1.150 schwarze 47: static void append_delims(struct mdoc *, int, int *, char *);
1.185 schwarze 48: static int lookup(struct mdoc *, int, int, int, const char *);
1.153 schwarze 49: static int macro_or_word(MACRO_PROT_ARGS, int);
1.185 schwarze 50: static int parse_rest(struct mdoc *, int, int, int *, char *);
51: static int rew_alt(int);
52: static void rew_elem(struct mdoc *, int);
53: static void rew_last(struct mdoc *, const struct roff_node *);
54: static void rew_pending(struct mdoc *, const struct roff_node *);
1.1 kristaps 55:
56: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123 schwarze 57: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 58: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
59: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
60: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123 schwarze 61: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
62: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
63: { in_line_eoln, 0 }, /* Pp */
64: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
65: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 66: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123 schwarze 67: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 68: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123 schwarze 69: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
70: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
71: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
72: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 73: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129 schwarze 74: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 75: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123 schwarze 76: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
77: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
78: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 79: { in_line_eoln, 0 }, /* Ex */
1.123 schwarze 80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
81: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123 schwarze 83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128 schwarze 85: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18 kristaps 86: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123 schwarze 87: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
88: { blk_full, MDOC_JOIN }, /* Nd */
89: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 90: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132 schwarze 91: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
93: { in_line_eoln, 0 }, /* Rv */
1.123 schwarze 94: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123 schwarze 96: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 97: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123 schwarze 98: { in_line_eoln, MDOC_JOIN }, /* %A */
99: { in_line_eoln, MDOC_JOIN }, /* %B */
100: { in_line_eoln, MDOC_JOIN }, /* %D */
101: { in_line_eoln, MDOC_JOIN }, /* %I */
102: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 103: { in_line_eoln, 0 }, /* %N */
1.123 schwarze 104: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 105: { in_line_eoln, 0 }, /* %P */
1.123 schwarze 106: { in_line_eoln, MDOC_JOIN }, /* %R */
107: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 108: { in_line_eoln, 0 }, /* %V */
1.123 schwarze 109: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
110: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
111: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
112: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
113: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 114: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123 schwarze 115: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
116: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
117: { blk_full, MDOC_EXPLICIT }, /* Bf */
118: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
119: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
120: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 121: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
122: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
123: { in_line_eoln, 0 }, /* Db */
1.123 schwarze 124: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
125: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
126: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
127: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
128: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
129: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
130: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
131: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 132: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
133: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 134: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144 schwarze 135: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123 schwarze 136: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
137: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
139: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123 schwarze 140: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
141: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52 kristaps 142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123 schwarze 143: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
144: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
145: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
146: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
147: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
148: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
149: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
150: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
151: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
152: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 153: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123 schwarze 154: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
155: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
156: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
157: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
158: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147 schwarze 159: { in_line_argn, 0 }, /* Sm */
1.123 schwarze 160: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
161: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 162: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123 schwarze 163: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 164: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
165: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123 schwarze 166: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
167: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
168: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
169: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
170: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
171: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
172: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 173: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123 schwarze 174: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 175: { in_line_eoln, 0 }, /* Bt */
176: { in_line_eoln, 0 }, /* Hf */
1.132 schwarze 177: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 178: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 179: { in_line, 0 }, /* Lb */
1.123 schwarze 180: { in_line_eoln, 0 }, /* Lp */
181: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
182: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
183: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
184: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
185: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
186: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
187: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
188: { in_line_eoln, MDOC_JOIN }, /* %C */
1.132 schwarze 189: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
190: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 191: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123 schwarze 192: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20 kristaps 193: { in_line_eoln, 0 }, /* br */
194: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 195: { in_line_eoln, 0 }, /* %U */
1.123 schwarze 196: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143 schwarze 197: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 198: };
199:
200: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
201:
202:
203: /*
204: * This is called at the end of parsing. It must traverse up the tree,
205: * closing out open [implicit] scopes. Obviously, open explicit scopes
206: * are errors.
207: */
1.151 schwarze 208: void
1.119 schwarze 209: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 210: {
1.185 schwarze 211: struct roff_node *n;
1.1 kristaps 212:
213: /* Scan for open explicit scopes. */
214:
1.151 schwarze 215: n = mdoc->last->flags & MDOC_VALID ?
1.131 schwarze 216: mdoc->last->parent : mdoc->last;
1.1 kristaps 217:
1.94 schwarze 218: for ( ; n; n = n->parent)
1.184 schwarze 219: if (n->type == ROFFT_BLOCK &&
1.151 schwarze 220: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137 schwarze 221: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
222: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 223:
1.32 kristaps 224: /* Rewind to the first. */
225:
1.149 schwarze 226: rew_last(mdoc, mdoc->first);
1.1 kristaps 227: }
228:
1.32 kristaps 229: /*
1.153 schwarze 230: * Look up the macro at *p called by "from",
231: * or as a line macro if from == MDOC_MAX.
1.32 kristaps 232: */
1.185 schwarze 233: static int
234: lookup(struct mdoc *mdoc, int from, int line, int ppos, const char *p)
1.28 kristaps 235: {
1.185 schwarze 236: int res;
1.1 kristaps 237:
1.153 schwarze 238: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
239: res = mdoc_hash_find(p);
1.155 schwarze 240: if (res != MDOC_MAX) {
241: if (mdoc_macros[res].flags & MDOC_CALLABLE)
242: return(res);
243: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
244: mandoc_msg(MANDOCERR_MACRO_CALL,
245: mdoc->parse, line, ppos, p);
246: }
1.153 schwarze 247: }
1.1 kristaps 248: return(MDOC_MAX);
249: }
250:
1.166 schwarze 251: /*
252: * Rewind up to and including a specific node.
253: */
1.149 schwarze 254: static void
1.185 schwarze 255: rew_last(struct mdoc *mdoc, const struct roff_node *to)
1.1 kristaps 256: {
1.185 schwarze 257: struct roff_node *n, *np;
1.1 kristaps 258:
1.186 ! schwarze 259: if (to->flags & MDOC_VALID)
! 260: return;
! 261:
1.1 kristaps 262: mdoc->next = MDOC_NEXT_SIBLING;
263: while (mdoc->last != to) {
1.100 kristaps 264: /*
265: * Save the parent here, because we may delete the
1.119 schwarze 266: * mdoc->last node in the post-validation phase and reset
267: * it to mdoc->last->parent, causing a step in the closing
1.100 kristaps 268: * out to be lost.
269: */
270: np = mdoc->last->parent;
1.149 schwarze 271: mdoc_valid_post(mdoc);
1.99 kristaps 272: n = mdoc->last;
1.100 kristaps 273: mdoc->last = np;
1.1 kristaps 274: assert(mdoc->last);
1.99 kristaps 275: mdoc->last->last = n;
1.1 kristaps 276: }
1.149 schwarze 277: mdoc_valid_post(mdoc);
1.1 kristaps 278: }
279:
1.32 kristaps 280: /*
1.166 schwarze 281: * Rewind up to a specific block, including all blocks that broke it.
282: */
283: static void
1.185 schwarze 284: rew_pending(struct mdoc *mdoc, const struct roff_node *n)
1.166 schwarze 285: {
286:
1.183 schwarze 287: for (;;) {
288: rew_last(mdoc, n);
289:
290: switch (n->type) {
1.184 schwarze 291: case ROFFT_HEAD:
1.183 schwarze 292: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
293: return;
1.184 schwarze 294: case ROFFT_BLOCK:
1.183 schwarze 295: break;
296: default:
297: return;
298: }
1.166 schwarze 299:
1.183 schwarze 300: if ( ! (n->flags & MDOC_BROKEN))
301: return;
1.166 schwarze 302:
1.183 schwarze 303: for (;;) {
304: if ((n = n->parent) == NULL)
305: return;
306:
1.184 schwarze 307: if (n->type == ROFFT_BLOCK ||
308: n->type == ROFFT_HEAD) {
1.183 schwarze 309: if (n->flags & MDOC_ENDED)
310: break;
311: else
312: return;
313: }
314: }
1.166 schwarze 315: }
316: }
317:
318: /*
1.84 schwarze 319: * For a block closing macro, return the corresponding opening one.
320: * Otherwise, return the macro itself.
1.32 kristaps 321: */
1.185 schwarze 322: static int
323: rew_alt(int tok)
1.1 kristaps 324: {
325: switch (tok) {
1.131 schwarze 326: case MDOC_Ac:
1.1 kristaps 327: return(MDOC_Ao);
1.131 schwarze 328: case MDOC_Bc:
1.1 kristaps 329: return(MDOC_Bo);
1.131 schwarze 330: case MDOC_Brc:
1.1 kristaps 331: return(MDOC_Bro);
1.131 schwarze 332: case MDOC_Dc:
1.1 kristaps 333: return(MDOC_Do);
1.131 schwarze 334: case MDOC_Ec:
1.1 kristaps 335: return(MDOC_Eo);
1.131 schwarze 336: case MDOC_Ed:
1.1 kristaps 337: return(MDOC_Bd);
1.131 schwarze 338: case MDOC_Ef:
1.1 kristaps 339: return(MDOC_Bf);
1.131 schwarze 340: case MDOC_Ek:
1.1 kristaps 341: return(MDOC_Bk);
1.131 schwarze 342: case MDOC_El:
1.1 kristaps 343: return(MDOC_Bl);
1.131 schwarze 344: case MDOC_Fc:
1.1 kristaps 345: return(MDOC_Fo);
1.131 schwarze 346: case MDOC_Oc:
1.1 kristaps 347: return(MDOC_Oo);
1.131 schwarze 348: case MDOC_Pc:
1.1 kristaps 349: return(MDOC_Po);
1.131 schwarze 350: case MDOC_Qc:
1.1 kristaps 351: return(MDOC_Qo);
1.131 schwarze 352: case MDOC_Re:
1.1 kristaps 353: return(MDOC_Rs);
1.131 schwarze 354: case MDOC_Sc:
1.1 kristaps 355: return(MDOC_So);
1.131 schwarze 356: case MDOC_Xc:
1.1 kristaps 357: return(MDOC_Xo);
358: default:
1.84 schwarze 359: return(tok);
1.1 kristaps 360: }
361: /* NOTREACHED */
362: }
363:
1.149 schwarze 364: static void
1.185 schwarze 365: rew_elem(struct mdoc *mdoc, int tok)
1.1 kristaps 366: {
1.185 schwarze 367: struct roff_node *n;
1.1 kristaps 368:
369: n = mdoc->last;
1.184 schwarze 370: if (n->type != ROFFT_ELEM)
1.1 kristaps 371: n = n->parent;
1.184 schwarze 372: assert(n->type == ROFFT_ELEM);
1.1 kristaps 373: assert(tok == n->tok);
1.149 schwarze 374: rew_last(mdoc, n);
1.1 kristaps 375: }
376:
1.83 schwarze 377: /*
1.105 kristaps 378: * Allocate a word and check whether it's punctuation or not.
379: * Punctuation consists of those tokens found in mdoc_isdelim().
380: */
1.150 schwarze 381: static void
1.123 schwarze 382: dword(struct mdoc *mdoc, int line, int col, const char *p,
383: enum mdelim d, int may_append)
1.105 kristaps 384: {
1.131 schwarze 385:
1.150 schwarze 386: if (d == DELIM_MAX)
1.105 kristaps 387: d = mdoc_isdelim(p);
388:
1.123 schwarze 389: if (may_append &&
1.150 schwarze 390: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184 schwarze 391: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150 schwarze 392: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123 schwarze 393: mdoc_word_append(mdoc, p);
1.150 schwarze 394: return;
1.123 schwarze 395: }
396:
1.150 schwarze 397: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 398:
1.108 schwarze 399: /*
1.144 schwarze 400: * If the word consists of a bare delimiter,
401: * flag the new node accordingly,
402: * unless doing so was vetoed by the invoking macro.
403: * Always clear the veto, it is only valid for one word.
1.108 schwarze 404: */
405:
1.144 schwarze 406: if (d == DELIM_OPEN)
407: mdoc->last->flags |= MDOC_DELIMO;
408: else if (d == DELIM_CLOSE &&
409: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 410: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 411: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 412: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 413: }
1.1 kristaps 414:
1.150 schwarze 415: static void
1.119 schwarze 416: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 417: {
1.153 schwarze 418: char *p;
1.66 kristaps 419: int la;
1.1 kristaps 420:
1.150 schwarze 421: if (buf[*pos] == '\0')
422: return;
1.1 kristaps 423:
424: for (;;) {
1.66 kristaps 425: la = *pos;
1.153 schwarze 426: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 427: break;
1.123 schwarze 428: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 429:
430: /*
431: * If we encounter end-of-sentence symbols, then trigger
432: * the double-space.
433: *
1.109 kristaps 434: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 435: * the last symbol, such that `. )' will cause the
436: * correct double-spacing. However, (1) groff isn't
437: * smart enough to do this and (2) it would require
438: * knowing which symbols break this behaviour, for
1.109 kristaps 439: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 440: */
1.150 schwarze 441:
1.127 schwarze 442: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 443: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 444: }
445: }
446:
447: /*
1.153 schwarze 448: * Parse one word.
449: * If it is a macro, call it and return 1.
450: * Otherwise, allocate it and return 0.
451: */
452: static int
453: macro_or_word(MACRO_PROT_ARGS, int parsed)
454: {
455: char *p;
1.185 schwarze 456: int ntok;
1.153 schwarze 457:
458: p = buf + ppos;
459: ntok = MDOC_MAX;
1.157 schwarze 460: if (*p == '"')
1.153 schwarze 461: p++;
1.157 schwarze 462: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 463: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 464:
465: if (ntok == MDOC_MAX) {
466: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
467: mdoc_macros[tok].flags & MDOC_JOIN);
468: return(0);
469: } else {
470: if (mdoc_macros[tok].fp == in_line_eoln)
471: rew_elem(mdoc, tok);
472: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
473: if (tok == MDOC_MAX)
474: append_delims(mdoc, line, pos, buf);
475: return(1);
476: }
477: }
478:
479: /*
1.131 schwarze 480: * Close out block partial/full explicit.
1.1 kristaps 481: */
1.151 schwarze 482: static void
1.1 kristaps 483: blk_exp_close(MACRO_PROT_ARGS)
484: {
1.185 schwarze 485: struct roff_node *body; /* Our own body. */
486: struct roff_node *endbody; /* Our own end marker. */
487: struct roff_node *itblk; /* An It block starting later. */
488: struct roff_node *later; /* A sub-block starting later. */
489: struct roff_node *n; /* Search back to our block. */
1.83 schwarze 490:
1.171 schwarze 491: int j, lastarg, maxargs, nl;
1.55 kristaps 492: enum margserr ac;
1.185 schwarze 493: int atok, ntok;
1.1 kristaps 494: char *p;
495:
1.119 schwarze 496: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 497:
1.1 kristaps 498: switch (tok) {
1.131 schwarze 499: case MDOC_Ec:
1.1 kristaps 500: maxargs = 1;
501: break;
1.131 schwarze 502: case MDOC_Ek:
1.125 schwarze 503: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 504: /* FALLTHROUGH */
1.1 kristaps 505: default:
506: maxargs = 0;
507: break;
508: }
509:
1.83 schwarze 510: /*
511: * Search backwards for beginnings of blocks,
512: * both of our own and of pending sub-blocks.
513: */
1.151 schwarze 514:
1.83 schwarze 515: atok = rew_alt(tok);
1.171 schwarze 516: body = endbody = itblk = later = NULL;
1.119 schwarze 517: for (n = mdoc->last; n; n = n->parent) {
1.183 schwarze 518: if (n->flags & MDOC_ENDED) {
519: if ( ! (n->flags & MDOC_VALID))
520: n->flags |= MDOC_BROKEN;
1.83 schwarze 521: continue;
1.183 schwarze 522: }
1.83 schwarze 523:
524: /* Remember the start of our own body. */
1.151 schwarze 525:
1.184 schwarze 526: if (n->type == ROFFT_BODY && atok == n->tok) {
1.175 schwarze 527: if (n->end == ENDBODY_NOT)
1.83 schwarze 528: body = n;
529: continue;
530: }
531:
1.184 schwarze 532: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 533: continue;
1.160 schwarze 534:
535: if (n->tok == MDOC_It) {
1.171 schwarze 536: itblk = n;
1.160 schwarze 537: continue;
538: }
539:
1.83 schwarze 540: if (atok == n->tok) {
541: assert(body);
542:
543: /*
544: * Found the start of our own block.
545: * When there is no pending sub block,
546: * just proceed to closing out.
547: */
1.151 schwarze 548:
1.160 schwarze 549: if (later == NULL ||
1.171 schwarze 550: (tok == MDOC_El && itblk == NULL))
1.83 schwarze 551: break;
552:
1.131 schwarze 553: /*
1.167 schwarze 554: * When there is a pending sub block, postpone
555: * closing out the current block until the
556: * rew_pending() closing out the sub-block.
1.83 schwarze 557: * Mark the place where the formatting - but not
558: * the scope - of the current block ends.
559: */
1.151 schwarze 560:
1.183 schwarze 561: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
562: line, ppos, "%s breaks %s",
563: mdoc_macronames[atok],
564: mdoc_macronames[later->tok]);
565:
1.166 schwarze 566: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150 schwarze 567: atok, body, ENDBODY_SPACE);
1.151 schwarze 568:
1.183 schwarze 569: if (tok == MDOC_El)
570: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
571:
1.151 schwarze 572: /*
573: * If a block closing macro taking arguments
574: * breaks another block, put the arguments
1.166 schwarze 575: * into the end marker.
1.151 schwarze 576: */
577:
1.166 schwarze 578: if (maxargs)
1.148 schwarze 579: mdoc->next = MDOC_NEXT_CHILD;
1.83 schwarze 580: break;
1.182 schwarze 581: }
582:
583: /* Explicit blocks close out description lines. */
584:
585: if (n->tok == MDOC_Nd) {
586: rew_last(mdoc, n);
587: continue;
1.83 schwarze 588: }
589:
1.183 schwarze 590: /* Breaking an open sub block. */
1.151 schwarze 591:
1.183 schwarze 592: n->flags |= MDOC_BROKEN;
593: if (later == NULL)
1.83 schwarze 594: later = n;
595: }
1.166 schwarze 596:
597: if (body == NULL) {
598: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
599: line, ppos, mdoc_macronames[tok]);
600: if (maxargs && endbody == NULL) {
601: /*
602: * Stray .Ec without previous .Eo:
603: * Break the output line, keep the arguments.
604: */
605: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
606: rew_elem(mdoc, MDOC_br);
607: }
608: } else if (endbody == NULL) {
609: rew_last(mdoc, body);
610: if (maxargs)
611: mdoc_tail_alloc(mdoc, line, ppos, atok);
612: }
1.83 schwarze 613:
1.150 schwarze 614: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
615: if (buf[*pos] != '\0')
1.136 schwarze 616: mandoc_vmsg(MANDOCERR_ARG_SKIP,
617: mdoc->parse, line, ppos,
618: "%s %s", mdoc_macronames[tok],
619: buf + *pos);
1.171 schwarze 620: if (endbody == NULL && n != NULL)
1.167 schwarze 621: rew_pending(mdoc, n);
1.151 schwarze 622: return;
1.1 kristaps 623: }
624:
1.166 schwarze 625: if (endbody != NULL)
626: n = endbody;
1.148 schwarze 627: for (j = 0; ; j++) {
1.1 kristaps 628: lastarg = *pos;
629:
1.186 ! schwarze 630: if (j == maxargs && n != NULL)
! 631: rew_last(mdoc, n);
1.1 kristaps 632:
1.119 schwarze 633: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 634: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 635: break;
636:
1.155 schwarze 637: ntok = ac == ARGS_QWORD ? MDOC_MAX :
638: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 639:
1.150 schwarze 640: if (ntok == MDOC_MAX) {
641: dword(mdoc, line, lastarg, p, DELIM_MAX,
642: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 643: continue;
644: }
1.1 kristaps 645:
1.186 ! schwarze 646: if (n != NULL)
! 647: rew_last(mdoc, n);
1.122 schwarze 648: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 649: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 650: break;
1.1 kristaps 651: }
652:
1.166 schwarze 653: if (n != NULL)
654: rew_pending(mdoc, n);
1.150 schwarze 655: if (nl)
656: append_delims(mdoc, line, pos, buf);
1.1 kristaps 657: }
658:
1.151 schwarze 659: static void
1.1 kristaps 660: in_line(MACRO_PROT_ARGS)
661: {
1.144 schwarze 662: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.185 schwarze 663: int ntok;
1.55 kristaps 664: enum margserr ac;
1.67 schwarze 665: enum mdelim d;
1.53 kristaps 666: struct mdoc_arg *arg;
667: char *p;
1.1 kristaps 668:
1.119 schwarze 669: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 670:
1.4 kristaps 671: /*
672: * Whether we allow ignored elements (those without content,
673: * usually because of reserved words) to squeak by.
674: */
1.45 kristaps 675:
1.4 kristaps 676: switch (tok) {
1.131 schwarze 677: case MDOC_An:
1.26 kristaps 678: /* FALLTHROUGH */
1.131 schwarze 679: case MDOC_Ar:
1.4 kristaps 680: /* FALLTHROUGH */
1.131 schwarze 681: case MDOC_Fl:
1.4 kristaps 682: /* FALLTHROUGH */
1.131 schwarze 683: case MDOC_Mt:
1.12 kristaps 684: /* FALLTHROUGH */
1.131 schwarze 685: case MDOC_Nm:
1.26 kristaps 686: /* FALLTHROUGH */
1.131 schwarze 687: case MDOC_Pa:
1.4 kristaps 688: nc = 1;
689: break;
690: default:
691: nc = 0;
692: break;
693: }
694:
1.152 schwarze 695: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 696:
1.144 schwarze 697: d = DELIM_NONE;
698: firstarg = 1;
1.142 schwarze 699: mayopen = 1;
1.70 kristaps 700: for (cnt = scope = 0;; ) {
1.1 kristaps 701: la = *pos;
1.119 schwarze 702: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 703:
1.144 schwarze 704: /*
705: * At the end of a macro line,
706: * opening delimiters do not suppress spacing.
707: */
708:
709: if (ac == ARGS_EOLN) {
710: if (d == DELIM_OPEN)
711: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 712: break;
1.144 schwarze 713: }
714:
715: /*
716: * The rest of the macro line is only punctuation,
717: * to be handled by append_delims().
718: * If there were no other arguments,
719: * do not allow the first one to suppress spacing,
720: * even if it turns out to be a closing one.
721: */
722:
723: if (ac == ARGS_PUNCT) {
1.176 schwarze 724: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144 schwarze 725: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 726: break;
1.144 schwarze 727: }
1.1 kristaps 728:
1.145 schwarze 729: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155 schwarze 730: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 731:
1.131 schwarze 732: /*
1.4 kristaps 733: * In this case, we've located a submacro and must
734: * execute it. Close out scope, if open. If no
735: * elements have been generated, either create one (nc)
736: * or raise a warning.
737: */
1.1 kristaps 738:
1.150 schwarze 739: if (ntok != MDOC_MAX) {
1.149 schwarze 740: if (scope)
741: rew_elem(mdoc, tok);
1.150 schwarze 742: if (nc && ! cnt) {
743: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 744: rew_last(mdoc, mdoc->last);
1.150 schwarze 745: } else if ( ! nc && ! cnt) {
1.7 kristaps 746: mdoc_argv_free(arg);
1.135 schwarze 747: mandoc_msg(MANDOCERR_MACRO_EMPTY,
748: mdoc->parse, line, ppos,
749: mdoc_macronames[tok]);
1.7 kristaps 750: }
1.151 schwarze 751: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 752: if (nl)
753: append_delims(mdoc, line, pos, buf);
1.151 schwarze 754: return;
1.131 schwarze 755: }
1.1 kristaps 756:
1.131 schwarze 757: /*
1.4 kristaps 758: * Non-quote-enclosed punctuation. Set up our scope, if
759: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 760: * the word.
1.4 kristaps 761: */
1.1 kristaps 762:
1.150 schwarze 763: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 764:
1.70 kristaps 765: if (DELIM_NONE != d) {
766: /*
767: * If we encounter closing punctuation, no word
1.144 schwarze 768: * has been emitted, no scope is open, and we're
1.70 kristaps 769: * allowed to have an empty element, then start
1.142 schwarze 770: * a new scope.
1.70 kristaps 771: */
1.142 schwarze 772: if ((d == DELIM_CLOSE ||
773: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 774: !cnt && !scope && nc && mayopen) {
1.150 schwarze 775: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 776: scope = 1;
1.142 schwarze 777: cnt++;
1.150 schwarze 778: if (tok == MDOC_Nm)
1.142 schwarze 779: mayopen = 0;
1.70 kristaps 780: }
781: /*
782: * Close out our scope, if one is open, before
783: * any punctuation.
784: */
1.149 schwarze 785: if (scope)
786: rew_elem(mdoc, tok);
1.70 kristaps 787: scope = 0;
1.145 schwarze 788: if (tok == MDOC_Fn)
789: mayopen = 0;
1.142 schwarze 790: } else if (mayopen && !scope) {
1.150 schwarze 791: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 792: scope = 1;
1.142 schwarze 793: cnt++;
1.1 kristaps 794: }
1.105 kristaps 795:
1.150 schwarze 796: dword(mdoc, line, la, p, d,
797: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 798:
799: /*
1.144 schwarze 800: * If the first argument is a closing delimiter,
801: * do not suppress spacing before it.
802: */
803:
804: if (firstarg && d == DELIM_CLOSE && !nc)
805: mdoc->last->flags &= ~MDOC_DELIMC;
806: firstarg = 0;
807:
808: /*
1.39 kristaps 809: * `Fl' macros have their scope re-opened with each new
810: * word so that the `-' can be added to each one without
811: * having to parse out spaces.
812: */
1.150 schwarze 813: if (scope && tok == MDOC_Fl) {
1.149 schwarze 814: rew_elem(mdoc, tok);
1.70 kristaps 815: scope = 0;
1.39 kristaps 816: }
1.1 kristaps 817: }
818:
1.149 schwarze 819: if (scope)
820: rew_elem(mdoc, tok);
1.4 kristaps 821:
822: /*
823: * If no elements have been collected and we're allowed to have
824: * empties (nc), open a scope and close it out. Otherwise,
825: * raise a warning.
826: */
1.45 kristaps 827:
1.150 schwarze 828: if ( ! cnt) {
829: if (nc) {
830: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
831: rew_last(mdoc, mdoc->last);
832: } else {
833: mdoc_argv_free(arg);
834: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
835: line, ppos, mdoc_macronames[tok]);
836: }
1.7 kristaps 837: }
1.150 schwarze 838: if (nl)
839: append_delims(mdoc, line, pos, buf);
1.1 kristaps 840: }
841:
1.151 schwarze 842: static void
1.1 kristaps 843: blk_full(MACRO_PROT_ARGS)
844: {
1.153 schwarze 845: int la, nl, parsed;
1.1 kristaps 846: struct mdoc_arg *arg;
1.185 schwarze 847: struct roff_node *blk; /* Our own or a broken block. */
848: struct roff_node *head; /* Our own head. */
849: struct roff_node *body; /* Our own body. */
850: struct roff_node *n;
1.59 kristaps 851: enum margserr ac, lac;
1.1 kristaps 852: char *p;
853:
1.119 schwarze 854: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 855:
1.177 schwarze 856: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
857: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
858: line, ppos, mdoc_macronames[tok]);
859: return;
860: }
861:
1.171 schwarze 862: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
863:
864: /* Here, tok is one of Sh Ss Nm Nd It. */
865:
866: blk = NULL;
867: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 868: if (n->flags & MDOC_ENDED) {
869: if ( ! (n->flags & MDOC_VALID))
870: n->flags |= MDOC_BROKEN;
871: continue;
872: }
1.184 schwarze 873: if (n->type != ROFFT_BLOCK)
1.171 schwarze 874: continue;
1.183 schwarze 875:
1.171 schwarze 876: if (tok == MDOC_It && n->tok == MDOC_Bl) {
877: if (blk != NULL) {
878: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
879: mdoc->parse, line, ppos,
880: "It breaks %s",
881: mdoc_macronames[blk->tok]);
882: rew_pending(mdoc, blk);
883: }
884: break;
885: }
886:
887: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
888: switch (tok) {
889: case MDOC_Sh:
890: /* FALLTHROUGH */
891: case MDOC_Ss:
892: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
893: mdoc->parse, line, ppos,
894: "%s breaks %s",
895: mdoc_macronames[tok],
896: mdoc_macronames[n->tok]);
897: rew_pending(mdoc, n);
1.180 schwarze 898: n = mdoc->last;
1.171 schwarze 899: continue;
900: case MDOC_It:
901: /* Delay in case it's astray. */
902: blk = n;
903: continue;
904: default:
905: break;
906: }
907: break;
908: }
909:
910: /* Here, n is one of Sh Ss Nm Nd It. */
1.138 schwarze 911:
1.171 schwarze 912: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
913: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
914: (tok != MDOC_It && n->tok == MDOC_It)))))
1.138 schwarze 915: break;
1.171 schwarze 916:
917: /* Item breaking an explicit block. */
918:
919: if (blk != NULL) {
920: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
921: mdoc->parse, line, ppos,
922: "It breaks %s",
923: mdoc_macronames[blk->tok]);
924: rew_pending(mdoc, blk);
1.172 schwarze 925: blk = NULL;
1.171 schwarze 926: }
927:
928: /* Close out prior implicit scopes. */
929:
930: rew_last(mdoc, n);
931: }
932:
933: /* Skip items outside lists. */
934:
935: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138 schwarze 936: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
937: line, ppos, "It %s", buf + *pos);
1.150 schwarze 938: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 939: rew_elem(mdoc, MDOC_br);
1.151 schwarze 940: return;
1.138 schwarze 941: }
1.1 kristaps 942: }
943:
1.45 kristaps 944: /*
1.109 kristaps 945: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 946: * macro openings. Implicit ones first close out prior scope
947: * (seen above). Delay opening the head until necessary to
948: * allow leading punctuation to print. Special consideration
949: * for `It -column', which has phrase-part syntax instead of
950: * regular child nodes.
951: */
952:
1.152 schwarze 953: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 schwarze 954: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 955: head = body = NULL;
1.115 schwarze 956:
957: /*
958: * Exception: Heads of `It' macros in `-diag' lists are not
959: * parsed, even though `It' macros in general are parsed.
960: */
1.151 schwarze 961:
1.153 schwarze 962: parsed = tok != MDOC_It ||
963: mdoc->last->parent->tok != MDOC_Bl ||
964: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 965:
1.45 kristaps 966: /*
967: * The `Nd' macro has all arguments in its body: it's a hybrid
968: * of block partial-explicit and full-implicit. Stupid.
969: */
1.19 kristaps 970:
1.150 schwarze 971: if (tok == MDOC_Nd) {
972: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 973: rew_last(mdoc, head);
1.150 schwarze 974: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 975: }
976:
1.150 schwarze 977: if (tok == MDOC_Bk)
1.123 schwarze 978: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 979:
1.150 schwarze 980: ac = ARGS_PEND;
981: for (;;) {
1.45 kristaps 982: la = *pos;
1.150 schwarze 983: lac = ac;
1.119 schwarze 984: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 985: if (ac == ARGS_EOLN) {
986: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 987: break;
988: /*
989: * This is necessary: if the last token on a
990: * line is a `Ta' or tab, then we'll get
991: * ARGS_EOLN, so we must be smart enough to
992: * reopen our scope if the last parse was a
993: * phrase or partial phrase.
994: */
1.167 schwarze 995: if (body != NULL)
996: rew_last(mdoc, body);
1.150 schwarze 997: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 998: break;
1.75 kristaps 999: }
1.174 schwarze 1000: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1001: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1002: mdoc->parse, line, la, "%s ... %s",
1003: mdoc_macronames[tok], buf + la);
1004: break;
1005: }
1.173 schwarze 1006: if (tok == MDOC_Rs) {
1007: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1008: line, la, "Rs %s", buf + la);
1009: break;
1010: }
1011: if (ac == ARGS_PUNCT)
1012: break;
1.45 kristaps 1013:
1.131 schwarze 1014: /*
1.73 kristaps 1015: * Emit leading punctuation (i.e., punctuation before
1.184 schwarze 1016: * the ROFFT_HEAD) for non-phrase types.
1.73 kristaps 1017: */
1.45 kristaps 1018:
1.150 schwarze 1019: if (head == NULL &&
1020: ac != ARGS_PEND &&
1021: ac != ARGS_PHRASE &&
1022: ac != ARGS_PPHRASE &&
1023: ac != ARGS_QWORD &&
1024: mdoc_isdelim(p) == DELIM_OPEN) {
1025: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1026: continue;
1027: }
1028:
1.74 kristaps 1029: /* Open a head if one hasn't been opened. */
1.45 kristaps 1030:
1.150 schwarze 1031: if (head == NULL)
1032: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1033:
1.150 schwarze 1034: if (ac == ARGS_PHRASE ||
1035: ac == ARGS_PEND ||
1036: ac == ARGS_PPHRASE) {
1.151 schwarze 1037:
1.73 kristaps 1038: /*
1.74 kristaps 1039: * If we haven't opened a body yet, rewind the
1040: * head; if we have, rewind that instead.
1041: */
1042:
1.167 schwarze 1043: rew_last(mdoc, body == NULL ? head : body);
1.150 schwarze 1044: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1045:
1046: /*
1.73 kristaps 1047: * Process phrases: set whether we're in a
1048: * partial-phrase (this effects line handling)
1049: * then call down into the phrase parser.
1050: */
1.74 kristaps 1051:
1.150 schwarze 1052: if (ac == ARGS_PPHRASE)
1.119 schwarze 1053: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1054: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1055: mdoc->flags |= MDOC_PPHRASE;
1.154 schwarze 1056: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1057: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1058: continue;
1059: }
1060:
1.153 schwarze 1061: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1062: break;
1.45 kristaps 1063: }
1.1 kristaps 1064:
1.165 schwarze 1065: if (blk->flags & MDOC_VALID)
1066: return;
1.150 schwarze 1067: if (head == NULL)
1068: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.174 schwarze 1069: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150 schwarze 1070: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1071: if (body != NULL)
1.77 kristaps 1072: goto out;
1.19 kristaps 1073:
1.47 kristaps 1074: /*
1.49 kristaps 1075: * If there is an open (i.e., unvalidated) sub-block requiring
1076: * explicit close-out, postpone switching the current block from
1.167 schwarze 1077: * head to body until the rew_pending() call closing out that
1.49 kristaps 1078: * sub-block.
1.47 kristaps 1079: */
1.119 schwarze 1080: for (n = mdoc->last; n && n != head; n = n->parent) {
1.183 schwarze 1081: if (n->flags & MDOC_ENDED) {
1082: if ( ! (n->flags & MDOC_VALID))
1083: n->flags |= MDOC_BROKEN;
1084: continue;
1085: }
1.184 schwarze 1086: if (n->type == ROFFT_BLOCK &&
1.183 schwarze 1087: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
1088: n->flags = MDOC_BROKEN;
1089: head->flags = MDOC_ENDED;
1.47 kristaps 1090: }
1091: }
1.183 schwarze 1092: if (head->flags & MDOC_ENDED)
1093: return;
1.47 kristaps 1094:
1.45 kristaps 1095: /* Close out scopes to remain in a consistent state. */
1096:
1.167 schwarze 1097: rew_last(mdoc, head);
1098: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1099: out:
1.150 schwarze 1100: if (mdoc->flags & MDOC_FREECOL) {
1.167 schwarze 1101: rew_last(mdoc, body);
1102: rew_last(mdoc, blk);
1.150 schwarze 1103: mdoc->flags &= ~MDOC_FREECOL;
1104: }
1.1 kristaps 1105: }
1106:
1.151 schwarze 1107: static void
1.1 kristaps 1108: blk_part_imp(MACRO_PROT_ARGS)
1109: {
1.63 kristaps 1110: int la, nl;
1.55 kristaps 1111: enum margserr ac;
1.1 kristaps 1112: char *p;
1.185 schwarze 1113: struct roff_node *blk; /* saved block context */
1114: struct roff_node *body; /* saved body context */
1115: struct roff_node *n;
1.1 kristaps 1116:
1.119 schwarze 1117: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1118:
1.43 kristaps 1119: /*
1120: * A macro that spans to the end of the line. This is generally
1121: * (but not necessarily) called as the first macro. The block
1122: * has a head as the immediate child, which is always empty,
1123: * followed by zero or more opening punctuation nodes, then the
1124: * body (which may be empty, depending on the macro), then zero
1125: * or more closing punctuation nodes.
1126: */
1.32 kristaps 1127:
1.150 schwarze 1128: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.162 schwarze 1129: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1130:
1.43 kristaps 1131: /*
1132: * Open the body scope "on-demand", that is, after we've
1133: * processed all our the leading delimiters (open parenthesis,
1134: * etc.).
1135: */
1.1 kristaps 1136:
1.43 kristaps 1137: for (body = NULL; ; ) {
1.32 kristaps 1138: la = *pos;
1.119 schwarze 1139: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1140: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1141: break;
1142:
1.150 schwarze 1143: if (body == NULL && ac != ARGS_QWORD &&
1144: mdoc_isdelim(p) == DELIM_OPEN) {
1145: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1146: continue;
1.123 schwarze 1147: }
1.1 kristaps 1148:
1.150 schwarze 1149: if (body == NULL)
1150: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1151:
1.153 schwarze 1152: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1153: break;
1.1 kristaps 1154: }
1.150 schwarze 1155: if (body == NULL)
1156: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1157:
1.83 schwarze 1158: /*
1159: * If there is an open sub-block requiring explicit close-out,
1.167 schwarze 1160: * postpone closing out the current block until the
1161: * rew_pending() call closing out the sub-block.
1.83 schwarze 1162: */
1.151 schwarze 1163:
1.119 schwarze 1164: for (n = mdoc->last; n && n != body && n != blk->parent;
1.131 schwarze 1165: n = n->parent) {
1.183 schwarze 1166: if (n->flags & MDOC_ENDED) {
1167: if ( ! (n->flags & MDOC_VALID))
1168: n->flags |= MDOC_BROKEN;
1169: continue;
1170: }
1.184 schwarze 1171: if (n->type == ROFFT_BLOCK &&
1.183 schwarze 1172: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
1173: n->flags |= MDOC_BROKEN;
1174: if ( ! (body->flags & MDOC_ENDED)) {
1175: mandoc_vmsg(MANDOCERR_BLK_NEST,
1176: mdoc->parse, line, ppos,
1177: "%s breaks %s", mdoc_macronames[tok],
1178: mdoc_macronames[n->tok]);
1179: mdoc_endbody_alloc(mdoc, line, ppos,
1180: tok, body, ENDBODY_NOSPACE);
1181: }
1.83 schwarze 1182: }
1183: }
1.134 schwarze 1184: assert(n == body);
1.183 schwarze 1185: if (body->flags & MDOC_ENDED)
1186: return;
1187:
1.164 schwarze 1188: rew_last(mdoc, body);
1.150 schwarze 1189: if (nl)
1190: append_delims(mdoc, line, pos, buf);
1.166 schwarze 1191: rew_pending(mdoc, blk);
1.117 schwarze 1192:
1193: /* Move trailing .Ns out of scope. */
1194:
1195: for (n = body->child; n && n->next; n = n->next)
1196: /* Do nothing. */ ;
1.150 schwarze 1197: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1198: mdoc_node_relink(mdoc, n);
1.1 kristaps 1199: }
1200:
1.151 schwarze 1201: static void
1.1 kristaps 1202: blk_part_exp(MACRO_PROT_ARGS)
1203: {
1.60 kristaps 1204: int la, nl;
1.55 kristaps 1205: enum margserr ac;
1.185 schwarze 1206: struct roff_node *head; /* keep track of head */
1.1 kristaps 1207: char *p;
1208:
1.119 schwarze 1209: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1210:
1.43 kristaps 1211: /*
1212: * The opening of an explicit macro having zero or more leading
1213: * punctuation nodes; a head with optional single element (the
1214: * case of `Eo'); and a body that may be empty.
1215: */
1.32 kristaps 1216:
1.150 schwarze 1217: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163 schwarze 1218: head = NULL;
1219: for (;;) {
1.32 kristaps 1220: la = *pos;
1.119 schwarze 1221: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1222: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1223: break;
1.43 kristaps 1224:
1225: /* Flush out leading punctuation. */
1226:
1.150 schwarze 1227: if (head == NULL && ac != ARGS_QWORD &&
1228: mdoc_isdelim(p) == DELIM_OPEN) {
1229: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1230: continue;
1.123 schwarze 1231: }
1.43 kristaps 1232:
1.150 schwarze 1233: if (head == NULL) {
1234: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1235: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1236: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1237: rew_last(mdoc, head);
1238: mdoc_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1239: if (tok == MDOC_Eo)
1.43 kristaps 1240: continue;
1.1 kristaps 1241: }
1.43 kristaps 1242:
1.153 schwarze 1243: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1244: break;
1.1 kristaps 1245: }
1246:
1.43 kristaps 1247: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1248:
1.163 schwarze 1249: if (head == NULL) {
1250: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.150 schwarze 1251: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1252: }
1.150 schwarze 1253: if (nl)
1254: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1255: }
1256:
1.151 schwarze 1257: static void
1.1 kristaps 1258: in_line_argn(MACRO_PROT_ARGS)
1259: {
1.53 kristaps 1260: struct mdoc_arg *arg;
1261: char *p;
1.181 schwarze 1262: enum margserr ac;
1.185 schwarze 1263: int ntok;
1.181 schwarze 1264: int state; /* arg#; -1: not yet open; -2: closed */
1265: int la, maxargs, nl;
1.1 kristaps 1266:
1.156 schwarze 1267: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1268:
1.46 kristaps 1269: /*
1270: * A line macro that has a fixed number of arguments (maxargs).
1271: * Only open the scope once the first non-leading-punctuation is
1272: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1273: * keep it open until the maximum number of arguments are
1274: * exhausted.
1275: */
1.1 kristaps 1276:
1277: switch (tok) {
1.131 schwarze 1278: case MDOC_Ap:
1.1 kristaps 1279: /* FALLTHROUGH */
1.131 schwarze 1280: case MDOC_Ns:
1.1 kristaps 1281: /* FALLTHROUGH */
1.131 schwarze 1282: case MDOC_Ux:
1.1 kristaps 1283: maxargs = 0;
1284: break;
1.131 schwarze 1285: case MDOC_Bx:
1.101 kristaps 1286: /* FALLTHROUGH */
1.132 schwarze 1287: case MDOC_Es:
1288: /* FALLTHROUGH */
1.131 schwarze 1289: case MDOC_Xr:
1.42 kristaps 1290: maxargs = 2;
1291: break;
1.1 kristaps 1292: default:
1293: maxargs = 1;
1294: break;
1295: }
1296:
1.152 schwarze 1297: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1298:
1.181 schwarze 1299: state = -1;
1.156 schwarze 1300: p = NULL;
1301: for (;;) {
1.32 kristaps 1302: la = *pos;
1.119 schwarze 1303: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181 schwarze 1304:
1305: if (ac == ARGS_WORD && state == -1 &&
1306: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1307: mdoc_isdelim(p) == DELIM_OPEN) {
1308: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1309: continue;
1310: }
1311:
1312: if (state == -1 && tok != MDOC_In &&
1313: tok != MDOC_St && tok != MDOC_Xr) {
1314: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1315: state = 0;
1316: }
1317:
1.156 schwarze 1318: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181 schwarze 1319: if (abs(state) < 2 && tok == MDOC_Pf)
1.156 schwarze 1320: mandoc_vmsg(MANDOCERR_PF_SKIP,
1321: mdoc->parse, line, ppos, "Pf %s",
1322: p == NULL ? "at eol" : p);
1.1 kristaps 1323: break;
1.156 schwarze 1324: }
1.1 kristaps 1325:
1.181 schwarze 1326: if (state == maxargs) {
1.149 schwarze 1327: rew_elem(mdoc, tok);
1.181 schwarze 1328: state = -2;
1.46 kristaps 1329: }
1330:
1.181 schwarze 1331: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.156 schwarze 1332: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1333:
1.150 schwarze 1334: if (ntok != MDOC_MAX) {
1.181 schwarze 1335: if (state >= 0) {
1.149 schwarze 1336: rew_elem(mdoc, tok);
1.181 schwarze 1337: state = -2;
1338: }
1.151 schwarze 1339: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1340: break;
1341: }
1342:
1.181 schwarze 1343: if (ac == ARGS_QWORD ||
1344: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1345: mdoc_isdelim(p) == DELIM_NONE) {
1346: if (state == -1) {
1347: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1348: state = 1;
1349: } else if (state >= 0)
1350: state++;
1351: } else if (state >= 0) {
1.149 schwarze 1352: rew_elem(mdoc, tok);
1.181 schwarze 1353: state = -2;
1.1 kristaps 1354: }
1.42 kristaps 1355:
1.150 schwarze 1356: dword(mdoc, line, la, p, DELIM_MAX,
1357: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1358: }
1359:
1.181 schwarze 1360: if (state == -1) {
1361: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1362: line, ppos, mdoc_macronames[tok]);
1363: return;
1.156 schwarze 1364: }
1.181 schwarze 1365:
1366: if (state == 0 && tok == MDOC_Pf)
1367: append_delims(mdoc, line, pos, buf);
1368: if (state >= 0)
1.149 schwarze 1369: rew_elem(mdoc, tok);
1.150 schwarze 1370: if (nl)
1371: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1372: }
1373:
1.151 schwarze 1374: static void
1.1 kristaps 1375: in_line_eoln(MACRO_PROT_ARGS)
1376: {
1.185 schwarze 1377: struct roff_node *n;
1.170 schwarze 1378: struct mdoc_arg *arg;
1.1 kristaps 1379:
1.170 schwarze 1380: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1381: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1382: n = mdoc->last;
1383: if (mdoc->next == MDOC_NEXT_SIBLING)
1384: n = n->parent;
1385: if (n->tok == MDOC_Nm)
1386: rew_last(mdoc, mdoc->last->parent);
1.178 schwarze 1387: }
1388:
1.179 schwarze 1389: if (buf[*pos] == '\0' &&
1390: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178 schwarze 1391: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179 schwarze 1392: line, ppos, mdoc_macronames[tok]);
1.178 schwarze 1393: return;
1.170 schwarze 1394: }
1.90 schwarze 1395:
1.152 schwarze 1396: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1397: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1398: if (parse_rest(mdoc, tok, line, pos, buf))
1399: return;
1400: rew_elem(mdoc, tok);
1401: }
1402:
1403: /*
1404: * The simplest argument parser available: Parse the remaining
1405: * words until the end of the phrase or line and return 0
1406: * or until the next macro, call that macro, and return 1.
1407: */
1408: static int
1.185 schwarze 1409: parse_rest(struct mdoc *mdoc, int tok, int line, int *pos, char *buf)
1.154 schwarze 1410: {
1411: int la;
1.1 kristaps 1412:
1413: for (;;) {
1414: la = *pos;
1.153 schwarze 1415: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1416: return(0);
1.153 schwarze 1417: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1418: return(1);
1.1 kristaps 1419: }
1420: }
1421:
1.151 schwarze 1422: static void
1.41 kristaps 1423: ctx_synopsis(MACRO_PROT_ARGS)
1424: {
1.60 kristaps 1425:
1.151 schwarze 1426: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1427: in_line(mdoc, tok, line, ppos, pos, buf);
1428: else if (tok == MDOC_Nm)
1429: blk_full(mdoc, tok, line, ppos, pos, buf);
1430: else {
1431: assert(tok == MDOC_Vt);
1432: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1433: }
1.1 kristaps 1434: }
1435:
1.24 kristaps 1436: /*
1437: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1438: * They're unusual because they're basically free-form text until a
1439: * macro is encountered.
1440: */
1.151 schwarze 1441: static void
1.75 kristaps 1442: phrase_ta(MACRO_PROT_ARGS)
1443: {
1.185 schwarze 1444: struct roff_node *body, *n;
1.75 kristaps 1445:
1.121 schwarze 1446: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1447:
1.167 schwarze 1448: body = NULL;
1449: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 1450: if (n->flags & MDOC_ENDED)
1.167 schwarze 1451: continue;
1.184 schwarze 1452: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167 schwarze 1453: body = n;
1454: if (n->tok == MDOC_Bl)
1455: break;
1456: }
1457:
1.151 schwarze 1458: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1459: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1460: line, ppos, "Ta");
1.151 schwarze 1461: return;
1.121 schwarze 1462: }
1.75 kristaps 1463:
1.121 schwarze 1464: /* Advance to the next column. */
1.150 schwarze 1465:
1.167 schwarze 1466: rew_last(mdoc, body);
1.150 schwarze 1467: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 schwarze 1468: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1469: }
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