Annotation of mandoc/mdoc_macro.c, Revision 1.185
1.185 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.184 2015/04/02 21:36:50 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:
259: assert(to);
260: mdoc->next = MDOC_NEXT_SIBLING;
261: while (mdoc->last != to) {
1.100 kristaps 262: /*
263: * Save the parent here, because we may delete the
1.119 schwarze 264: * mdoc->last node in the post-validation phase and reset
265: * it to mdoc->last->parent, causing a step in the closing
1.100 kristaps 266: * out to be lost.
267: */
268: np = mdoc->last->parent;
1.149 schwarze 269: mdoc_valid_post(mdoc);
1.99 kristaps 270: n = mdoc->last;
1.100 kristaps 271: mdoc->last = np;
1.1 kristaps 272: assert(mdoc->last);
1.99 kristaps 273: mdoc->last->last = n;
1.1 kristaps 274: }
1.149 schwarze 275: mdoc_valid_post(mdoc);
1.1 kristaps 276: }
277:
1.32 kristaps 278: /*
1.166 schwarze 279: * Rewind up to a specific block, including all blocks that broke it.
280: */
281: static void
1.185 ! schwarze 282: rew_pending(struct mdoc *mdoc, const struct roff_node *n)
1.166 schwarze 283: {
284:
1.183 schwarze 285: for (;;) {
286: rew_last(mdoc, n);
287:
288: switch (n->type) {
1.184 schwarze 289: case ROFFT_HEAD:
1.183 schwarze 290: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
291: return;
1.184 schwarze 292: case ROFFT_BLOCK:
1.183 schwarze 293: break;
294: default:
295: return;
296: }
1.166 schwarze 297:
1.183 schwarze 298: if ( ! (n->flags & MDOC_BROKEN))
299: return;
1.166 schwarze 300:
1.183 schwarze 301: for (;;) {
302: if ((n = n->parent) == NULL)
303: return;
304:
1.184 schwarze 305: if (n->type == ROFFT_BLOCK ||
306: n->type == ROFFT_HEAD) {
1.183 schwarze 307: if (n->flags & MDOC_ENDED)
308: break;
309: else
310: return;
311: }
312: }
1.166 schwarze 313: }
314: }
315:
316: /*
1.84 schwarze 317: * For a block closing macro, return the corresponding opening one.
318: * Otherwise, return the macro itself.
1.32 kristaps 319: */
1.185 ! schwarze 320: static int
! 321: rew_alt(int tok)
1.1 kristaps 322: {
323: switch (tok) {
1.131 schwarze 324: case MDOC_Ac:
1.1 kristaps 325: return(MDOC_Ao);
1.131 schwarze 326: case MDOC_Bc:
1.1 kristaps 327: return(MDOC_Bo);
1.131 schwarze 328: case MDOC_Brc:
1.1 kristaps 329: return(MDOC_Bro);
1.131 schwarze 330: case MDOC_Dc:
1.1 kristaps 331: return(MDOC_Do);
1.131 schwarze 332: case MDOC_Ec:
1.1 kristaps 333: return(MDOC_Eo);
1.131 schwarze 334: case MDOC_Ed:
1.1 kristaps 335: return(MDOC_Bd);
1.131 schwarze 336: case MDOC_Ef:
1.1 kristaps 337: return(MDOC_Bf);
1.131 schwarze 338: case MDOC_Ek:
1.1 kristaps 339: return(MDOC_Bk);
1.131 schwarze 340: case MDOC_El:
1.1 kristaps 341: return(MDOC_Bl);
1.131 schwarze 342: case MDOC_Fc:
1.1 kristaps 343: return(MDOC_Fo);
1.131 schwarze 344: case MDOC_Oc:
1.1 kristaps 345: return(MDOC_Oo);
1.131 schwarze 346: case MDOC_Pc:
1.1 kristaps 347: return(MDOC_Po);
1.131 schwarze 348: case MDOC_Qc:
1.1 kristaps 349: return(MDOC_Qo);
1.131 schwarze 350: case MDOC_Re:
1.1 kristaps 351: return(MDOC_Rs);
1.131 schwarze 352: case MDOC_Sc:
1.1 kristaps 353: return(MDOC_So);
1.131 schwarze 354: case MDOC_Xc:
1.1 kristaps 355: return(MDOC_Xo);
356: default:
1.84 schwarze 357: return(tok);
1.1 kristaps 358: }
359: /* NOTREACHED */
360: }
361:
1.149 schwarze 362: static void
1.185 ! schwarze 363: rew_elem(struct mdoc *mdoc, int tok)
1.1 kristaps 364: {
1.185 ! schwarze 365: struct roff_node *n;
1.1 kristaps 366:
367: n = mdoc->last;
1.184 schwarze 368: if (n->type != ROFFT_ELEM)
1.1 kristaps 369: n = n->parent;
1.184 schwarze 370: assert(n->type == ROFFT_ELEM);
1.1 kristaps 371: assert(tok == n->tok);
1.149 schwarze 372: rew_last(mdoc, n);
1.1 kristaps 373: }
374:
1.83 schwarze 375: /*
1.105 kristaps 376: * Allocate a word and check whether it's punctuation or not.
377: * Punctuation consists of those tokens found in mdoc_isdelim().
378: */
1.150 schwarze 379: static void
1.123 schwarze 380: dword(struct mdoc *mdoc, int line, int col, const char *p,
381: enum mdelim d, int may_append)
1.105 kristaps 382: {
1.131 schwarze 383:
1.150 schwarze 384: if (d == DELIM_MAX)
1.105 kristaps 385: d = mdoc_isdelim(p);
386:
1.123 schwarze 387: if (may_append &&
1.150 schwarze 388: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184 schwarze 389: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150 schwarze 390: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123 schwarze 391: mdoc_word_append(mdoc, p);
1.150 schwarze 392: return;
1.123 schwarze 393: }
394:
1.150 schwarze 395: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 396:
1.108 schwarze 397: /*
1.144 schwarze 398: * If the word consists of a bare delimiter,
399: * flag the new node accordingly,
400: * unless doing so was vetoed by the invoking macro.
401: * Always clear the veto, it is only valid for one word.
1.108 schwarze 402: */
403:
1.144 schwarze 404: if (d == DELIM_OPEN)
405: mdoc->last->flags |= MDOC_DELIMO;
406: else if (d == DELIM_CLOSE &&
407: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 408: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 409: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 410: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 411: }
1.1 kristaps 412:
1.150 schwarze 413: static void
1.119 schwarze 414: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 415: {
1.153 schwarze 416: char *p;
1.66 kristaps 417: int la;
1.1 kristaps 418:
1.150 schwarze 419: if (buf[*pos] == '\0')
420: return;
1.1 kristaps 421:
422: for (;;) {
1.66 kristaps 423: la = *pos;
1.153 schwarze 424: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 425: break;
1.123 schwarze 426: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 427:
428: /*
429: * If we encounter end-of-sentence symbols, then trigger
430: * the double-space.
431: *
1.109 kristaps 432: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 433: * the last symbol, such that `. )' will cause the
434: * correct double-spacing. However, (1) groff isn't
435: * smart enough to do this and (2) it would require
436: * knowing which symbols break this behaviour, for
1.109 kristaps 437: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 438: */
1.150 schwarze 439:
1.127 schwarze 440: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 441: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 442: }
443: }
444:
445: /*
1.153 schwarze 446: * Parse one word.
447: * If it is a macro, call it and return 1.
448: * Otherwise, allocate it and return 0.
449: */
450: static int
451: macro_or_word(MACRO_PROT_ARGS, int parsed)
452: {
453: char *p;
1.185 ! schwarze 454: int ntok;
1.153 schwarze 455:
456: p = buf + ppos;
457: ntok = MDOC_MAX;
1.157 schwarze 458: if (*p == '"')
1.153 schwarze 459: p++;
1.157 schwarze 460: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 461: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 462:
463: if (ntok == MDOC_MAX) {
464: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
465: mdoc_macros[tok].flags & MDOC_JOIN);
466: return(0);
467: } else {
468: if (mdoc_macros[tok].fp == in_line_eoln)
469: rew_elem(mdoc, tok);
470: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
471: if (tok == MDOC_MAX)
472: append_delims(mdoc, line, pos, buf);
473: return(1);
474: }
475: }
476:
477: /*
1.131 schwarze 478: * Close out block partial/full explicit.
1.1 kristaps 479: */
1.151 schwarze 480: static void
1.1 kristaps 481: blk_exp_close(MACRO_PROT_ARGS)
482: {
1.185 ! schwarze 483: struct roff_node *body; /* Our own body. */
! 484: struct roff_node *endbody; /* Our own end marker. */
! 485: struct roff_node *itblk; /* An It block starting later. */
! 486: struct roff_node *later; /* A sub-block starting later. */
! 487: struct roff_node *n; /* Search back to our block. */
1.83 schwarze 488:
1.171 schwarze 489: int j, lastarg, maxargs, nl;
1.55 kristaps 490: enum margserr ac;
1.185 ! schwarze 491: int atok, ntok;
1.1 kristaps 492: char *p;
493:
1.119 schwarze 494: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 495:
1.1 kristaps 496: switch (tok) {
1.131 schwarze 497: case MDOC_Ec:
1.1 kristaps 498: maxargs = 1;
499: break;
1.131 schwarze 500: case MDOC_Ek:
1.125 schwarze 501: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 502: /* FALLTHROUGH */
1.1 kristaps 503: default:
504: maxargs = 0;
505: break;
506: }
507:
1.83 schwarze 508: /*
509: * Search backwards for beginnings of blocks,
510: * both of our own and of pending sub-blocks.
511: */
1.151 schwarze 512:
1.83 schwarze 513: atok = rew_alt(tok);
1.171 schwarze 514: body = endbody = itblk = later = NULL;
1.119 schwarze 515: for (n = mdoc->last; n; n = n->parent) {
1.183 schwarze 516: if (n->flags & MDOC_ENDED) {
517: if ( ! (n->flags & MDOC_VALID))
518: n->flags |= MDOC_BROKEN;
1.83 schwarze 519: continue;
1.183 schwarze 520: }
1.83 schwarze 521:
522: /* Remember the start of our own body. */
1.151 schwarze 523:
1.184 schwarze 524: if (n->type == ROFFT_BODY && atok == n->tok) {
1.175 schwarze 525: if (n->end == ENDBODY_NOT)
1.83 schwarze 526: body = n;
527: continue;
528: }
529:
1.184 schwarze 530: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 531: continue;
1.160 schwarze 532:
533: if (n->tok == MDOC_It) {
1.171 schwarze 534: itblk = n;
1.160 schwarze 535: continue;
536: }
537:
1.83 schwarze 538: if (atok == n->tok) {
539: assert(body);
540:
541: /*
542: * Found the start of our own block.
543: * When there is no pending sub block,
544: * just proceed to closing out.
545: */
1.151 schwarze 546:
1.160 schwarze 547: if (later == NULL ||
1.171 schwarze 548: (tok == MDOC_El && itblk == NULL))
1.83 schwarze 549: break;
550:
1.131 schwarze 551: /*
1.167 schwarze 552: * When there is a pending sub block, postpone
553: * closing out the current block until the
554: * rew_pending() closing out the sub-block.
1.83 schwarze 555: * Mark the place where the formatting - but not
556: * the scope - of the current block ends.
557: */
1.151 schwarze 558:
1.183 schwarze 559: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
560: line, ppos, "%s breaks %s",
561: mdoc_macronames[atok],
562: mdoc_macronames[later->tok]);
563:
1.166 schwarze 564: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150 schwarze 565: atok, body, ENDBODY_SPACE);
1.151 schwarze 566:
1.183 schwarze 567: if (tok == MDOC_El)
568: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
569:
1.151 schwarze 570: /*
571: * If a block closing macro taking arguments
572: * breaks another block, put the arguments
1.166 schwarze 573: * into the end marker.
1.151 schwarze 574: */
575:
1.166 schwarze 576: if (maxargs)
1.148 schwarze 577: mdoc->next = MDOC_NEXT_CHILD;
1.83 schwarze 578: break;
1.182 schwarze 579: }
580:
581: /* Explicit blocks close out description lines. */
582:
583: if (n->tok == MDOC_Nd) {
584: rew_last(mdoc, n);
585: continue;
1.83 schwarze 586: }
587:
1.183 schwarze 588: /* Breaking an open sub block. */
1.151 schwarze 589:
1.183 schwarze 590: n->flags |= MDOC_BROKEN;
591: if (later == NULL)
1.83 schwarze 592: later = n;
593: }
1.166 schwarze 594:
595: if (body == NULL) {
596: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
597: line, ppos, mdoc_macronames[tok]);
598: if (maxargs && endbody == NULL) {
599: /*
600: * Stray .Ec without previous .Eo:
601: * Break the output line, keep the arguments.
602: */
603: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
604: rew_elem(mdoc, MDOC_br);
605: }
606: } else if (endbody == NULL) {
607: rew_last(mdoc, body);
608: if (maxargs)
609: mdoc_tail_alloc(mdoc, line, ppos, atok);
610: }
1.83 schwarze 611:
1.150 schwarze 612: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
613: if (buf[*pos] != '\0')
1.136 schwarze 614: mandoc_vmsg(MANDOCERR_ARG_SKIP,
615: mdoc->parse, line, ppos,
616: "%s %s", mdoc_macronames[tok],
617: buf + *pos);
1.171 schwarze 618: if (endbody == NULL && n != NULL)
1.167 schwarze 619: rew_pending(mdoc, n);
1.151 schwarze 620: return;
1.1 kristaps 621: }
622:
1.166 schwarze 623: if (endbody != NULL)
624: n = endbody;
1.148 schwarze 625: for (j = 0; ; j++) {
1.1 kristaps 626: lastarg = *pos;
627:
1.166 schwarze 628: if (j == maxargs && n != NULL) {
629: rew_pending(mdoc, n);
630: n = NULL;
1.1 kristaps 631: }
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:
1.166 schwarze 646: if (n != NULL) {
647: rew_pending(mdoc, n);
648: n = NULL;
1.54 kristaps 649: }
1.122 schwarze 650: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 651: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 652: break;
1.1 kristaps 653: }
654:
1.166 schwarze 655: if (n != NULL)
656: rew_pending(mdoc, n);
1.150 schwarze 657: if (nl)
658: append_delims(mdoc, line, pos, buf);
1.1 kristaps 659: }
660:
1.151 schwarze 661: static void
1.1 kristaps 662: in_line(MACRO_PROT_ARGS)
663: {
1.144 schwarze 664: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.185 ! schwarze 665: int ntok;
1.55 kristaps 666: enum margserr ac;
1.67 schwarze 667: enum mdelim d;
1.53 kristaps 668: struct mdoc_arg *arg;
669: char *p;
1.1 kristaps 670:
1.119 schwarze 671: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 672:
1.4 kristaps 673: /*
674: * Whether we allow ignored elements (those without content,
675: * usually because of reserved words) to squeak by.
676: */
1.45 kristaps 677:
1.4 kristaps 678: switch (tok) {
1.131 schwarze 679: case MDOC_An:
1.26 kristaps 680: /* FALLTHROUGH */
1.131 schwarze 681: case MDOC_Ar:
1.4 kristaps 682: /* FALLTHROUGH */
1.131 schwarze 683: case MDOC_Fl:
1.4 kristaps 684: /* FALLTHROUGH */
1.131 schwarze 685: case MDOC_Mt:
1.12 kristaps 686: /* FALLTHROUGH */
1.131 schwarze 687: case MDOC_Nm:
1.26 kristaps 688: /* FALLTHROUGH */
1.131 schwarze 689: case MDOC_Pa:
1.4 kristaps 690: nc = 1;
691: break;
692: default:
693: nc = 0;
694: break;
695: }
696:
1.152 schwarze 697: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 698:
1.144 schwarze 699: d = DELIM_NONE;
700: firstarg = 1;
1.142 schwarze 701: mayopen = 1;
1.70 kristaps 702: for (cnt = scope = 0;; ) {
1.1 kristaps 703: la = *pos;
1.119 schwarze 704: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 705:
1.144 schwarze 706: /*
707: * At the end of a macro line,
708: * opening delimiters do not suppress spacing.
709: */
710:
711: if (ac == ARGS_EOLN) {
712: if (d == DELIM_OPEN)
713: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 714: break;
1.144 schwarze 715: }
716:
717: /*
718: * The rest of the macro line is only punctuation,
719: * to be handled by append_delims().
720: * If there were no other arguments,
721: * do not allow the first one to suppress spacing,
722: * even if it turns out to be a closing one.
723: */
724:
725: if (ac == ARGS_PUNCT) {
1.176 schwarze 726: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144 schwarze 727: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 728: break;
1.144 schwarze 729: }
1.1 kristaps 730:
1.145 schwarze 731: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155 schwarze 732: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 733:
1.131 schwarze 734: /*
1.4 kristaps 735: * In this case, we've located a submacro and must
736: * execute it. Close out scope, if open. If no
737: * elements have been generated, either create one (nc)
738: * or raise a warning.
739: */
1.1 kristaps 740:
1.150 schwarze 741: if (ntok != MDOC_MAX) {
1.149 schwarze 742: if (scope)
743: rew_elem(mdoc, tok);
1.150 schwarze 744: if (nc && ! cnt) {
745: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 746: rew_last(mdoc, mdoc->last);
1.150 schwarze 747: } else if ( ! nc && ! cnt) {
1.7 kristaps 748: mdoc_argv_free(arg);
1.135 schwarze 749: mandoc_msg(MANDOCERR_MACRO_EMPTY,
750: mdoc->parse, line, ppos,
751: mdoc_macronames[tok]);
1.7 kristaps 752: }
1.151 schwarze 753: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 754: if (nl)
755: append_delims(mdoc, line, pos, buf);
1.151 schwarze 756: return;
1.131 schwarze 757: }
1.1 kristaps 758:
1.131 schwarze 759: /*
1.4 kristaps 760: * Non-quote-enclosed punctuation. Set up our scope, if
761: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 762: * the word.
1.4 kristaps 763: */
1.1 kristaps 764:
1.150 schwarze 765: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 766:
1.70 kristaps 767: if (DELIM_NONE != d) {
768: /*
769: * If we encounter closing punctuation, no word
1.144 schwarze 770: * has been emitted, no scope is open, and we're
1.70 kristaps 771: * allowed to have an empty element, then start
1.142 schwarze 772: * a new scope.
1.70 kristaps 773: */
1.142 schwarze 774: if ((d == DELIM_CLOSE ||
775: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 776: !cnt && !scope && nc && mayopen) {
1.150 schwarze 777: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 778: scope = 1;
1.142 schwarze 779: cnt++;
1.150 schwarze 780: if (tok == MDOC_Nm)
1.142 schwarze 781: mayopen = 0;
1.70 kristaps 782: }
783: /*
784: * Close out our scope, if one is open, before
785: * any punctuation.
786: */
1.149 schwarze 787: if (scope)
788: rew_elem(mdoc, tok);
1.70 kristaps 789: scope = 0;
1.145 schwarze 790: if (tok == MDOC_Fn)
791: mayopen = 0;
1.142 schwarze 792: } else if (mayopen && !scope) {
1.150 schwarze 793: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 794: scope = 1;
1.142 schwarze 795: cnt++;
1.1 kristaps 796: }
1.105 kristaps 797:
1.150 schwarze 798: dword(mdoc, line, la, p, d,
799: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 800:
801: /*
1.144 schwarze 802: * If the first argument is a closing delimiter,
803: * do not suppress spacing before it.
804: */
805:
806: if (firstarg && d == DELIM_CLOSE && !nc)
807: mdoc->last->flags &= ~MDOC_DELIMC;
808: firstarg = 0;
809:
810: /*
1.39 kristaps 811: * `Fl' macros have their scope re-opened with each new
812: * word so that the `-' can be added to each one without
813: * having to parse out spaces.
814: */
1.150 schwarze 815: if (scope && tok == MDOC_Fl) {
1.149 schwarze 816: rew_elem(mdoc, tok);
1.70 kristaps 817: scope = 0;
1.39 kristaps 818: }
1.1 kristaps 819: }
820:
1.149 schwarze 821: if (scope)
822: rew_elem(mdoc, tok);
1.4 kristaps 823:
824: /*
825: * If no elements have been collected and we're allowed to have
826: * empties (nc), open a scope and close it out. Otherwise,
827: * raise a warning.
828: */
1.45 kristaps 829:
1.150 schwarze 830: if ( ! cnt) {
831: if (nc) {
832: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
833: rew_last(mdoc, mdoc->last);
834: } else {
835: mdoc_argv_free(arg);
836: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
837: line, ppos, mdoc_macronames[tok]);
838: }
1.7 kristaps 839: }
1.150 schwarze 840: if (nl)
841: append_delims(mdoc, line, pos, buf);
1.1 kristaps 842: }
843:
1.151 schwarze 844: static void
1.1 kristaps 845: blk_full(MACRO_PROT_ARGS)
846: {
1.153 schwarze 847: int la, nl, parsed;
1.1 kristaps 848: struct mdoc_arg *arg;
1.185 ! schwarze 849: struct roff_node *blk; /* Our own or a broken block. */
! 850: struct roff_node *head; /* Our own head. */
! 851: struct roff_node *body; /* Our own body. */
! 852: struct roff_node *n;
1.59 kristaps 853: enum margserr ac, lac;
1.1 kristaps 854: char *p;
855:
1.119 schwarze 856: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 857:
1.177 schwarze 858: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
859: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
860: line, ppos, mdoc_macronames[tok]);
861: return;
862: }
863:
1.171 schwarze 864: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
865:
866: /* Here, tok is one of Sh Ss Nm Nd It. */
867:
868: blk = NULL;
869: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 870: if (n->flags & MDOC_ENDED) {
871: if ( ! (n->flags & MDOC_VALID))
872: n->flags |= MDOC_BROKEN;
873: continue;
874: }
1.184 schwarze 875: if (n->type != ROFFT_BLOCK)
1.171 schwarze 876: continue;
1.183 schwarze 877:
1.171 schwarze 878: if (tok == MDOC_It && n->tok == MDOC_Bl) {
879: if (blk != NULL) {
880: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
881: mdoc->parse, line, ppos,
882: "It breaks %s",
883: mdoc_macronames[blk->tok]);
884: rew_pending(mdoc, blk);
885: }
886: break;
887: }
888:
889: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
890: switch (tok) {
891: case MDOC_Sh:
892: /* FALLTHROUGH */
893: case MDOC_Ss:
894: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
895: mdoc->parse, line, ppos,
896: "%s breaks %s",
897: mdoc_macronames[tok],
898: mdoc_macronames[n->tok]);
899: rew_pending(mdoc, n);
1.180 schwarze 900: n = mdoc->last;
1.171 schwarze 901: continue;
902: case MDOC_It:
903: /* Delay in case it's astray. */
904: blk = n;
905: continue;
906: default:
907: break;
908: }
909: break;
910: }
911:
912: /* Here, n is one of Sh Ss Nm Nd It. */
1.138 schwarze 913:
1.171 schwarze 914: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
915: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
916: (tok != MDOC_It && n->tok == MDOC_It)))))
1.138 schwarze 917: break;
1.171 schwarze 918:
919: /* Item breaking an explicit block. */
920:
921: if (blk != NULL) {
922: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
923: mdoc->parse, line, ppos,
924: "It breaks %s",
925: mdoc_macronames[blk->tok]);
926: rew_pending(mdoc, blk);
1.172 schwarze 927: blk = NULL;
1.171 schwarze 928: }
929:
930: /* Close out prior implicit scopes. */
931:
932: rew_last(mdoc, n);
933: }
934:
935: /* Skip items outside lists. */
936:
937: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138 schwarze 938: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
939: line, ppos, "It %s", buf + *pos);
1.150 schwarze 940: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 941: rew_elem(mdoc, MDOC_br);
1.151 schwarze 942: return;
1.138 schwarze 943: }
1.1 kristaps 944: }
945:
1.45 kristaps 946: /*
1.109 kristaps 947: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 948: * macro openings. Implicit ones first close out prior scope
949: * (seen above). Delay opening the head until necessary to
950: * allow leading punctuation to print. Special consideration
951: * for `It -column', which has phrase-part syntax instead of
952: * regular child nodes.
953: */
954:
1.152 schwarze 955: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 schwarze 956: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 957: head = body = NULL;
1.115 schwarze 958:
959: /*
960: * Exception: Heads of `It' macros in `-diag' lists are not
961: * parsed, even though `It' macros in general are parsed.
962: */
1.151 schwarze 963:
1.153 schwarze 964: parsed = tok != MDOC_It ||
965: mdoc->last->parent->tok != MDOC_Bl ||
966: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 967:
1.45 kristaps 968: /*
969: * The `Nd' macro has all arguments in its body: it's a hybrid
970: * of block partial-explicit and full-implicit. Stupid.
971: */
1.19 kristaps 972:
1.150 schwarze 973: if (tok == MDOC_Nd) {
974: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 975: rew_last(mdoc, head);
1.150 schwarze 976: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 977: }
978:
1.150 schwarze 979: if (tok == MDOC_Bk)
1.123 schwarze 980: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 981:
1.150 schwarze 982: ac = ARGS_PEND;
983: for (;;) {
1.45 kristaps 984: la = *pos;
1.150 schwarze 985: lac = ac;
1.119 schwarze 986: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 987: if (ac == ARGS_EOLN) {
988: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 989: break;
990: /*
991: * This is necessary: if the last token on a
992: * line is a `Ta' or tab, then we'll get
993: * ARGS_EOLN, so we must be smart enough to
994: * reopen our scope if the last parse was a
995: * phrase or partial phrase.
996: */
1.167 schwarze 997: if (body != NULL)
998: rew_last(mdoc, body);
1.150 schwarze 999: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1000: break;
1.75 kristaps 1001: }
1.174 schwarze 1002: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1003: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1004: mdoc->parse, line, la, "%s ... %s",
1005: mdoc_macronames[tok], buf + la);
1006: break;
1007: }
1.173 schwarze 1008: if (tok == MDOC_Rs) {
1009: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1010: line, la, "Rs %s", buf + la);
1011: break;
1012: }
1013: if (ac == ARGS_PUNCT)
1014: break;
1.45 kristaps 1015:
1.131 schwarze 1016: /*
1.73 kristaps 1017: * Emit leading punctuation (i.e., punctuation before
1.184 schwarze 1018: * the ROFFT_HEAD) for non-phrase types.
1.73 kristaps 1019: */
1.45 kristaps 1020:
1.150 schwarze 1021: if (head == NULL &&
1022: ac != ARGS_PEND &&
1023: ac != ARGS_PHRASE &&
1024: ac != ARGS_PPHRASE &&
1025: ac != ARGS_QWORD &&
1026: mdoc_isdelim(p) == DELIM_OPEN) {
1027: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1028: continue;
1029: }
1030:
1.74 kristaps 1031: /* Open a head if one hasn't been opened. */
1.45 kristaps 1032:
1.150 schwarze 1033: if (head == NULL)
1034: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1035:
1.150 schwarze 1036: if (ac == ARGS_PHRASE ||
1037: ac == ARGS_PEND ||
1038: ac == ARGS_PPHRASE) {
1.151 schwarze 1039:
1.73 kristaps 1040: /*
1.74 kristaps 1041: * If we haven't opened a body yet, rewind the
1042: * head; if we have, rewind that instead.
1043: */
1044:
1.167 schwarze 1045: rew_last(mdoc, body == NULL ? head : body);
1.150 schwarze 1046: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1047:
1048: /*
1.73 kristaps 1049: * Process phrases: set whether we're in a
1050: * partial-phrase (this effects line handling)
1051: * then call down into the phrase parser.
1052: */
1.74 kristaps 1053:
1.150 schwarze 1054: if (ac == ARGS_PPHRASE)
1.119 schwarze 1055: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1056: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1057: mdoc->flags |= MDOC_PPHRASE;
1.154 schwarze 1058: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1059: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1060: continue;
1061: }
1062:
1.153 schwarze 1063: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1064: break;
1.45 kristaps 1065: }
1.1 kristaps 1066:
1.165 schwarze 1067: if (blk->flags & MDOC_VALID)
1068: return;
1.150 schwarze 1069: if (head == NULL)
1070: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.174 schwarze 1071: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150 schwarze 1072: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1073: if (body != NULL)
1.77 kristaps 1074: goto out;
1.19 kristaps 1075:
1.47 kristaps 1076: /*
1.49 kristaps 1077: * If there is an open (i.e., unvalidated) sub-block requiring
1078: * explicit close-out, postpone switching the current block from
1.167 schwarze 1079: * head to body until the rew_pending() call closing out that
1.49 kristaps 1080: * sub-block.
1.47 kristaps 1081: */
1.119 schwarze 1082: for (n = mdoc->last; n && n != head; n = n->parent) {
1.183 schwarze 1083: if (n->flags & MDOC_ENDED) {
1084: if ( ! (n->flags & MDOC_VALID))
1085: n->flags |= MDOC_BROKEN;
1086: continue;
1087: }
1.184 schwarze 1088: if (n->type == ROFFT_BLOCK &&
1.183 schwarze 1089: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
1090: n->flags = MDOC_BROKEN;
1091: head->flags = MDOC_ENDED;
1.47 kristaps 1092: }
1093: }
1.183 schwarze 1094: if (head->flags & MDOC_ENDED)
1095: return;
1.47 kristaps 1096:
1.45 kristaps 1097: /* Close out scopes to remain in a consistent state. */
1098:
1.167 schwarze 1099: rew_last(mdoc, head);
1100: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1101: out:
1.150 schwarze 1102: if (mdoc->flags & MDOC_FREECOL) {
1.167 schwarze 1103: rew_last(mdoc, body);
1104: rew_last(mdoc, blk);
1.150 schwarze 1105: mdoc->flags &= ~MDOC_FREECOL;
1106: }
1.1 kristaps 1107: }
1108:
1.151 schwarze 1109: static void
1.1 kristaps 1110: blk_part_imp(MACRO_PROT_ARGS)
1111: {
1.63 kristaps 1112: int la, nl;
1.55 kristaps 1113: enum margserr ac;
1.1 kristaps 1114: char *p;
1.185 ! schwarze 1115: struct roff_node *blk; /* saved block context */
! 1116: struct roff_node *body; /* saved body context */
! 1117: struct roff_node *n;
1.1 kristaps 1118:
1.119 schwarze 1119: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1120:
1.43 kristaps 1121: /*
1122: * A macro that spans to the end of the line. This is generally
1123: * (but not necessarily) called as the first macro. The block
1124: * has a head as the immediate child, which is always empty,
1125: * followed by zero or more opening punctuation nodes, then the
1126: * body (which may be empty, depending on the macro), then zero
1127: * or more closing punctuation nodes.
1128: */
1.32 kristaps 1129:
1.150 schwarze 1130: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.162 schwarze 1131: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1132:
1.43 kristaps 1133: /*
1134: * Open the body scope "on-demand", that is, after we've
1135: * processed all our the leading delimiters (open parenthesis,
1136: * etc.).
1137: */
1.1 kristaps 1138:
1.43 kristaps 1139: for (body = NULL; ; ) {
1.32 kristaps 1140: la = *pos;
1.119 schwarze 1141: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1142: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1143: break;
1144:
1.150 schwarze 1145: if (body == NULL && ac != ARGS_QWORD &&
1146: mdoc_isdelim(p) == DELIM_OPEN) {
1147: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1148: continue;
1.123 schwarze 1149: }
1.1 kristaps 1150:
1.150 schwarze 1151: if (body == NULL)
1152: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1153:
1.153 schwarze 1154: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1155: break;
1.1 kristaps 1156: }
1.150 schwarze 1157: if (body == NULL)
1158: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1159:
1.83 schwarze 1160: /*
1161: * If there is an open sub-block requiring explicit close-out,
1.167 schwarze 1162: * postpone closing out the current block until the
1163: * rew_pending() call closing out the sub-block.
1.83 schwarze 1164: */
1.151 schwarze 1165:
1.119 schwarze 1166: for (n = mdoc->last; n && n != body && n != blk->parent;
1.131 schwarze 1167: n = n->parent) {
1.183 schwarze 1168: if (n->flags & MDOC_ENDED) {
1169: if ( ! (n->flags & MDOC_VALID))
1170: n->flags |= MDOC_BROKEN;
1171: continue;
1172: }
1.184 schwarze 1173: if (n->type == ROFFT_BLOCK &&
1.183 schwarze 1174: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
1175: n->flags |= MDOC_BROKEN;
1176: if ( ! (body->flags & MDOC_ENDED)) {
1177: mandoc_vmsg(MANDOCERR_BLK_NEST,
1178: mdoc->parse, line, ppos,
1179: "%s breaks %s", mdoc_macronames[tok],
1180: mdoc_macronames[n->tok]);
1181: mdoc_endbody_alloc(mdoc, line, ppos,
1182: tok, body, ENDBODY_NOSPACE);
1183: }
1.83 schwarze 1184: }
1185: }
1.134 schwarze 1186: assert(n == body);
1.183 schwarze 1187: if (body->flags & MDOC_ENDED)
1188: return;
1189:
1.164 schwarze 1190: rew_last(mdoc, body);
1.150 schwarze 1191: if (nl)
1192: append_delims(mdoc, line, pos, buf);
1.166 schwarze 1193: rew_pending(mdoc, blk);
1.117 schwarze 1194:
1195: /* Move trailing .Ns out of scope. */
1196:
1197: for (n = body->child; n && n->next; n = n->next)
1198: /* Do nothing. */ ;
1.150 schwarze 1199: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1200: mdoc_node_relink(mdoc, n);
1.1 kristaps 1201: }
1202:
1.151 schwarze 1203: static void
1.1 kristaps 1204: blk_part_exp(MACRO_PROT_ARGS)
1205: {
1.60 kristaps 1206: int la, nl;
1.55 kristaps 1207: enum margserr ac;
1.185 ! schwarze 1208: struct roff_node *head; /* keep track of head */
1.1 kristaps 1209: char *p;
1210:
1.119 schwarze 1211: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1212:
1.43 kristaps 1213: /*
1214: * The opening of an explicit macro having zero or more leading
1215: * punctuation nodes; a head with optional single element (the
1216: * case of `Eo'); and a body that may be empty.
1217: */
1.32 kristaps 1218:
1.150 schwarze 1219: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163 schwarze 1220: head = NULL;
1221: for (;;) {
1.32 kristaps 1222: la = *pos;
1.119 schwarze 1223: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1224: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1225: break;
1.43 kristaps 1226:
1227: /* Flush out leading punctuation. */
1228:
1.150 schwarze 1229: if (head == NULL && ac != ARGS_QWORD &&
1230: mdoc_isdelim(p) == DELIM_OPEN) {
1231: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1232: continue;
1.123 schwarze 1233: }
1.43 kristaps 1234:
1.150 schwarze 1235: if (head == NULL) {
1236: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1237: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1238: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1239: rew_last(mdoc, head);
1240: mdoc_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1241: if (tok == MDOC_Eo)
1.43 kristaps 1242: continue;
1.1 kristaps 1243: }
1.43 kristaps 1244:
1.153 schwarze 1245: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1246: break;
1.1 kristaps 1247: }
1248:
1.43 kristaps 1249: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1250:
1.163 schwarze 1251: if (head == NULL) {
1252: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.150 schwarze 1253: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1254: }
1.150 schwarze 1255: if (nl)
1256: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1257: }
1258:
1.151 schwarze 1259: static void
1.1 kristaps 1260: in_line_argn(MACRO_PROT_ARGS)
1261: {
1.53 kristaps 1262: struct mdoc_arg *arg;
1263: char *p;
1.181 schwarze 1264: enum margserr ac;
1.185 ! schwarze 1265: int ntok;
1.181 schwarze 1266: int state; /* arg#; -1: not yet open; -2: closed */
1267: int la, maxargs, nl;
1.1 kristaps 1268:
1.156 schwarze 1269: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1270:
1.46 kristaps 1271: /*
1272: * A line macro that has a fixed number of arguments (maxargs).
1273: * Only open the scope once the first non-leading-punctuation is
1274: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1275: * keep it open until the maximum number of arguments are
1276: * exhausted.
1277: */
1.1 kristaps 1278:
1279: switch (tok) {
1.131 schwarze 1280: case MDOC_Ap:
1.1 kristaps 1281: /* FALLTHROUGH */
1.131 schwarze 1282: case MDOC_Ns:
1.1 kristaps 1283: /* FALLTHROUGH */
1.131 schwarze 1284: case MDOC_Ux:
1.1 kristaps 1285: maxargs = 0;
1286: break;
1.131 schwarze 1287: case MDOC_Bx:
1.101 kristaps 1288: /* FALLTHROUGH */
1.132 schwarze 1289: case MDOC_Es:
1290: /* FALLTHROUGH */
1.131 schwarze 1291: case MDOC_Xr:
1.42 kristaps 1292: maxargs = 2;
1293: break;
1.1 kristaps 1294: default:
1295: maxargs = 1;
1296: break;
1297: }
1298:
1.152 schwarze 1299: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1300:
1.181 schwarze 1301: state = -1;
1.156 schwarze 1302: p = NULL;
1303: for (;;) {
1.32 kristaps 1304: la = *pos;
1.119 schwarze 1305: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181 schwarze 1306:
1307: if (ac == ARGS_WORD && state == -1 &&
1308: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1309: mdoc_isdelim(p) == DELIM_OPEN) {
1310: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1311: continue;
1312: }
1313:
1314: if (state == -1 && tok != MDOC_In &&
1315: tok != MDOC_St && tok != MDOC_Xr) {
1316: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1317: state = 0;
1318: }
1319:
1.156 schwarze 1320: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181 schwarze 1321: if (abs(state) < 2 && tok == MDOC_Pf)
1.156 schwarze 1322: mandoc_vmsg(MANDOCERR_PF_SKIP,
1323: mdoc->parse, line, ppos, "Pf %s",
1324: p == NULL ? "at eol" : p);
1.1 kristaps 1325: break;
1.156 schwarze 1326: }
1.1 kristaps 1327:
1.181 schwarze 1328: if (state == maxargs) {
1.149 schwarze 1329: rew_elem(mdoc, tok);
1.181 schwarze 1330: state = -2;
1.46 kristaps 1331: }
1332:
1.181 schwarze 1333: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.156 schwarze 1334: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1335:
1.150 schwarze 1336: if (ntok != MDOC_MAX) {
1.181 schwarze 1337: if (state >= 0) {
1.149 schwarze 1338: rew_elem(mdoc, tok);
1.181 schwarze 1339: state = -2;
1340: }
1.151 schwarze 1341: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1342: break;
1343: }
1344:
1.181 schwarze 1345: if (ac == ARGS_QWORD ||
1346: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1347: mdoc_isdelim(p) == DELIM_NONE) {
1348: if (state == -1) {
1349: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1350: state = 1;
1351: } else if (state >= 0)
1352: state++;
1353: } else if (state >= 0) {
1.149 schwarze 1354: rew_elem(mdoc, tok);
1.181 schwarze 1355: state = -2;
1.1 kristaps 1356: }
1.42 kristaps 1357:
1.150 schwarze 1358: dword(mdoc, line, la, p, DELIM_MAX,
1359: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1360: }
1361:
1.181 schwarze 1362: if (state == -1) {
1363: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1364: line, ppos, mdoc_macronames[tok]);
1365: return;
1.156 schwarze 1366: }
1.181 schwarze 1367:
1368: if (state == 0 && tok == MDOC_Pf)
1369: append_delims(mdoc, line, pos, buf);
1370: if (state >= 0)
1.149 schwarze 1371: rew_elem(mdoc, tok);
1.150 schwarze 1372: if (nl)
1373: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1374: }
1375:
1.151 schwarze 1376: static void
1.1 kristaps 1377: in_line_eoln(MACRO_PROT_ARGS)
1378: {
1.185 ! schwarze 1379: struct roff_node *n;
1.170 schwarze 1380: struct mdoc_arg *arg;
1.1 kristaps 1381:
1.170 schwarze 1382: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1383: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1384: n = mdoc->last;
1385: if (mdoc->next == MDOC_NEXT_SIBLING)
1386: n = n->parent;
1387: if (n->tok == MDOC_Nm)
1388: rew_last(mdoc, mdoc->last->parent);
1.178 schwarze 1389: }
1390:
1.179 schwarze 1391: if (buf[*pos] == '\0' &&
1392: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178 schwarze 1393: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179 schwarze 1394: line, ppos, mdoc_macronames[tok]);
1.178 schwarze 1395: return;
1.170 schwarze 1396: }
1.90 schwarze 1397:
1.152 schwarze 1398: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1399: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1400: if (parse_rest(mdoc, tok, line, pos, buf))
1401: return;
1402: rew_elem(mdoc, tok);
1403: }
1404:
1405: /*
1406: * The simplest argument parser available: Parse the remaining
1407: * words until the end of the phrase or line and return 0
1408: * or until the next macro, call that macro, and return 1.
1409: */
1410: static int
1.185 ! schwarze 1411: parse_rest(struct mdoc *mdoc, int tok, int line, int *pos, char *buf)
1.154 schwarze 1412: {
1413: int la;
1.1 kristaps 1414:
1415: for (;;) {
1416: la = *pos;
1.153 schwarze 1417: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1418: return(0);
1.153 schwarze 1419: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1420: return(1);
1.1 kristaps 1421: }
1422: }
1423:
1.151 schwarze 1424: static void
1.41 kristaps 1425: ctx_synopsis(MACRO_PROT_ARGS)
1426: {
1.60 kristaps 1427:
1.151 schwarze 1428: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1429: in_line(mdoc, tok, line, ppos, pos, buf);
1430: else if (tok == MDOC_Nm)
1431: blk_full(mdoc, tok, line, ppos, pos, buf);
1432: else {
1433: assert(tok == MDOC_Vt);
1434: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1435: }
1.1 kristaps 1436: }
1437:
1.24 kristaps 1438: /*
1439: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1440: * They're unusual because they're basically free-form text until a
1441: * macro is encountered.
1442: */
1.151 schwarze 1443: static void
1.75 kristaps 1444: phrase_ta(MACRO_PROT_ARGS)
1445: {
1.185 ! schwarze 1446: struct roff_node *body, *n;
1.75 kristaps 1447:
1.121 schwarze 1448: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1449:
1.167 schwarze 1450: body = NULL;
1451: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 1452: if (n->flags & MDOC_ENDED)
1.167 schwarze 1453: continue;
1.184 schwarze 1454: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167 schwarze 1455: body = n;
1456: if (n->tok == MDOC_Bl)
1457: break;
1458: }
1459:
1.151 schwarze 1460: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1461: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1462: line, ppos, "Ta");
1.151 schwarze 1463: return;
1.121 schwarze 1464: }
1.75 kristaps 1465:
1.121 schwarze 1466: /* Advance to the next column. */
1.150 schwarze 1467:
1.167 schwarze 1468: rew_last(mdoc, body);
1.150 schwarze 1469: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 schwarze 1470: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1471: }
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