Annotation of mandoc/mdoc_macro.c, Revision 1.189
1.189 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.188 2015/04/05 23:04:41 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:
1.189 ! schwarze 45: static void append_delims(struct roff_man *, int, int *, char *);
! 46: static void dword(struct roff_man *, int, int, const char *,
1.187 schwarze 47: enum mdelim, int);
1.189 ! schwarze 48: static int find_pending(struct roff_man *, int, int, int,
1.187 schwarze 49: struct roff_node *);
1.189 ! schwarze 50: static int lookup(struct roff_man *, int, int, int, const char *);
1.153 schwarze 51: static int macro_or_word(MACRO_PROT_ARGS, int);
1.189 ! schwarze 52: static int parse_rest(struct roff_man *, int, int, int *, char *);
1.185 schwarze 53: static int rew_alt(int);
1.189 ! schwarze 54: static void rew_elem(struct roff_man *, int);
! 55: static void rew_last(struct roff_man *, const struct roff_node *);
! 56: static void rew_pending(struct roff_man *,
! 57: const struct roff_node *);
1.1 kristaps 58:
59: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123 schwarze 60: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 61: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
62: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
63: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123 schwarze 64: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
65: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
66: { in_line_eoln, 0 }, /* Pp */
67: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
68: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 69: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123 schwarze 70: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 71: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123 schwarze 72: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
73: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
74: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
75: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 76: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129 schwarze 77: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 78: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123 schwarze 79: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
81: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 82: { in_line_eoln, 0 }, /* Ex */
1.123 schwarze 83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
84: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123 schwarze 86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128 schwarze 88: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18 kristaps 89: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123 schwarze 90: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
91: { blk_full, MDOC_JOIN }, /* Nd */
92: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 93: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132 schwarze 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
96: { in_line_eoln, 0 }, /* Rv */
1.123 schwarze 97: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123 schwarze 99: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 100: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123 schwarze 101: { in_line_eoln, MDOC_JOIN }, /* %A */
102: { in_line_eoln, MDOC_JOIN }, /* %B */
103: { in_line_eoln, MDOC_JOIN }, /* %D */
104: { in_line_eoln, MDOC_JOIN }, /* %I */
105: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 106: { in_line_eoln, 0 }, /* %N */
1.123 schwarze 107: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 108: { in_line_eoln, 0 }, /* %P */
1.123 schwarze 109: { in_line_eoln, MDOC_JOIN }, /* %R */
110: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 111: { in_line_eoln, 0 }, /* %V */
1.123 schwarze 112: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
113: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
114: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
115: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
116: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 117: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123 schwarze 118: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
119: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
120: { blk_full, MDOC_EXPLICIT }, /* Bf */
121: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
122: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
123: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 124: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
125: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
126: { in_line_eoln, 0 }, /* Db */
1.123 schwarze 127: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
128: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
129: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
130: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
131: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
132: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
133: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
134: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 135: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
136: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 137: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144 schwarze 138: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123 schwarze 139: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
140: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123 schwarze 143: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
144: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52 kristaps 145: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123 schwarze 146: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
147: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
148: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
149: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
150: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
151: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
152: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
153: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
154: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
155: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 156: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123 schwarze 157: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
158: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
159: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
160: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
161: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147 schwarze 162: { in_line_argn, 0 }, /* Sm */
1.123 schwarze 163: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
164: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 165: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123 schwarze 166: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 167: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
168: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123 schwarze 169: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
170: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
171: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
172: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
173: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
174: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
175: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 176: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123 schwarze 177: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 178: { in_line_eoln, 0 }, /* Bt */
179: { in_line_eoln, 0 }, /* Hf */
1.132 schwarze 180: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 181: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 182: { in_line, 0 }, /* Lb */
1.123 schwarze 183: { in_line_eoln, 0 }, /* Lp */
184: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
185: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
186: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
187: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
188: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
189: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
190: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
191: { in_line_eoln, MDOC_JOIN }, /* %C */
1.132 schwarze 192: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
193: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 194: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123 schwarze 195: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20 kristaps 196: { in_line_eoln, 0 }, /* br */
197: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 198: { in_line_eoln, 0 }, /* %U */
1.123 schwarze 199: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143 schwarze 200: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 201: };
202:
203: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
204:
205:
206: /*
207: * This is called at the end of parsing. It must traverse up the tree,
208: * closing out open [implicit] scopes. Obviously, open explicit scopes
209: * are errors.
210: */
1.151 schwarze 211: void
1.189 ! schwarze 212: mdoc_macroend(struct roff_man *mdoc)
1.1 kristaps 213: {
1.185 schwarze 214: struct roff_node *n;
1.1 kristaps 215:
216: /* Scan for open explicit scopes. */
217:
1.151 schwarze 218: n = mdoc->last->flags & MDOC_VALID ?
1.131 schwarze 219: mdoc->last->parent : mdoc->last;
1.1 kristaps 220:
1.94 schwarze 221: for ( ; n; n = n->parent)
1.184 schwarze 222: if (n->type == ROFFT_BLOCK &&
1.151 schwarze 223: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137 schwarze 224: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
225: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 226:
1.32 kristaps 227: /* Rewind to the first. */
228:
1.149 schwarze 229: rew_last(mdoc, mdoc->first);
1.1 kristaps 230: }
231:
1.32 kristaps 232: /*
1.153 schwarze 233: * Look up the macro at *p called by "from",
234: * or as a line macro if from == MDOC_MAX.
1.32 kristaps 235: */
1.185 schwarze 236: static int
1.189 ! schwarze 237: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.28 kristaps 238: {
1.185 schwarze 239: int res;
1.1 kristaps 240:
1.153 schwarze 241: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
242: res = mdoc_hash_find(p);
1.155 schwarze 243: if (res != MDOC_MAX) {
244: if (mdoc_macros[res].flags & MDOC_CALLABLE)
245: return(res);
246: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
247: mandoc_msg(MANDOCERR_MACRO_CALL,
248: mdoc->parse, line, ppos, p);
249: }
1.153 schwarze 250: }
1.1 kristaps 251: return(MDOC_MAX);
252: }
253:
1.166 schwarze 254: /*
255: * Rewind up to and including a specific node.
256: */
1.149 schwarze 257: static void
1.189 ! schwarze 258: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1 kristaps 259: {
1.185 schwarze 260: struct roff_node *n, *np;
1.1 kristaps 261:
1.186 schwarze 262: if (to->flags & MDOC_VALID)
263: return;
264:
1.189 ! schwarze 265: mdoc->next = ROFF_NEXT_SIBLING;
1.1 kristaps 266: while (mdoc->last != to) {
1.100 kristaps 267: /*
268: * Save the parent here, because we may delete the
1.119 schwarze 269: * mdoc->last node in the post-validation phase and reset
270: * it to mdoc->last->parent, causing a step in the closing
1.100 kristaps 271: * out to be lost.
272: */
273: np = mdoc->last->parent;
1.149 schwarze 274: mdoc_valid_post(mdoc);
1.99 kristaps 275: n = mdoc->last;
1.100 kristaps 276: mdoc->last = np;
1.1 kristaps 277: assert(mdoc->last);
1.99 kristaps 278: mdoc->last->last = n;
1.1 kristaps 279: }
1.149 schwarze 280: mdoc_valid_post(mdoc);
1.1 kristaps 281: }
282:
1.32 kristaps 283: /*
1.166 schwarze 284: * Rewind up to a specific block, including all blocks that broke it.
285: */
286: static void
1.189 ! schwarze 287: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.166 schwarze 288: {
289:
1.183 schwarze 290: for (;;) {
291: rew_last(mdoc, n);
292:
293: switch (n->type) {
1.184 schwarze 294: case ROFFT_HEAD:
1.183 schwarze 295: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
296: return;
1.184 schwarze 297: case ROFFT_BLOCK:
1.183 schwarze 298: break;
299: default:
300: return;
301: }
1.166 schwarze 302:
1.183 schwarze 303: if ( ! (n->flags & MDOC_BROKEN))
304: return;
1.166 schwarze 305:
1.183 schwarze 306: for (;;) {
307: if ((n = n->parent) == NULL)
308: return;
309:
1.184 schwarze 310: if (n->type == ROFFT_BLOCK ||
311: n->type == ROFFT_HEAD) {
1.183 schwarze 312: if (n->flags & MDOC_ENDED)
313: break;
314: else
315: return;
316: }
317: }
1.166 schwarze 318: }
319: }
320:
321: /*
1.84 schwarze 322: * For a block closing macro, return the corresponding opening one.
323: * Otherwise, return the macro itself.
1.32 kristaps 324: */
1.185 schwarze 325: static int
326: rew_alt(int tok)
1.1 kristaps 327: {
328: switch (tok) {
1.131 schwarze 329: case MDOC_Ac:
1.1 kristaps 330: return(MDOC_Ao);
1.131 schwarze 331: case MDOC_Bc:
1.1 kristaps 332: return(MDOC_Bo);
1.131 schwarze 333: case MDOC_Brc:
1.1 kristaps 334: return(MDOC_Bro);
1.131 schwarze 335: case MDOC_Dc:
1.1 kristaps 336: return(MDOC_Do);
1.131 schwarze 337: case MDOC_Ec:
1.1 kristaps 338: return(MDOC_Eo);
1.131 schwarze 339: case MDOC_Ed:
1.1 kristaps 340: return(MDOC_Bd);
1.131 schwarze 341: case MDOC_Ef:
1.1 kristaps 342: return(MDOC_Bf);
1.131 schwarze 343: case MDOC_Ek:
1.1 kristaps 344: return(MDOC_Bk);
1.131 schwarze 345: case MDOC_El:
1.1 kristaps 346: return(MDOC_Bl);
1.131 schwarze 347: case MDOC_Fc:
1.1 kristaps 348: return(MDOC_Fo);
1.131 schwarze 349: case MDOC_Oc:
1.1 kristaps 350: return(MDOC_Oo);
1.131 schwarze 351: case MDOC_Pc:
1.1 kristaps 352: return(MDOC_Po);
1.131 schwarze 353: case MDOC_Qc:
1.1 kristaps 354: return(MDOC_Qo);
1.131 schwarze 355: case MDOC_Re:
1.1 kristaps 356: return(MDOC_Rs);
1.131 schwarze 357: case MDOC_Sc:
1.1 kristaps 358: return(MDOC_So);
1.131 schwarze 359: case MDOC_Xc:
1.1 kristaps 360: return(MDOC_Xo);
361: default:
1.84 schwarze 362: return(tok);
1.1 kristaps 363: }
364: /* NOTREACHED */
365: }
366:
1.149 schwarze 367: static void
1.189 ! schwarze 368: rew_elem(struct roff_man *mdoc, int tok)
1.1 kristaps 369: {
1.185 schwarze 370: struct roff_node *n;
1.1 kristaps 371:
372: n = mdoc->last;
1.184 schwarze 373: if (n->type != ROFFT_ELEM)
1.1 kristaps 374: n = n->parent;
1.184 schwarze 375: assert(n->type == ROFFT_ELEM);
1.1 kristaps 376: assert(tok == n->tok);
1.149 schwarze 377: rew_last(mdoc, n);
1.1 kristaps 378: }
379:
1.83 schwarze 380: /*
1.187 schwarze 381: * If there is an open sub-block of the target requiring
382: * explicit close-out, postpone closing out the target until
383: * the rew_pending() call closing out the sub-block.
384: */
385: static int
1.189 ! schwarze 386: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.187 schwarze 387: struct roff_node *target)
388: {
389: struct roff_node *n;
390: int irc;
391:
392: irc = 0;
393: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
394: if (n->flags & MDOC_ENDED) {
395: if ( ! (n->flags & MDOC_VALID))
396: n->flags |= MDOC_BROKEN;
397: continue;
398: }
399: if (n->type == ROFFT_BLOCK &&
400: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
401: irc = 1;
402: n->flags = MDOC_BROKEN;
403: if (target->type == ROFFT_HEAD)
404: target->flags = MDOC_ENDED;
405: else if ( ! (target->flags & MDOC_ENDED)) {
406: mandoc_vmsg(MANDOCERR_BLK_NEST,
407: mdoc->parse, line, ppos,
408: "%s breaks %s", mdoc_macronames[tok],
409: mdoc_macronames[n->tok]);
410: mdoc_endbody_alloc(mdoc, line, ppos,
411: tok, target, ENDBODY_NOSPACE);
412: }
413: }
414: }
415: return(irc);
416: }
417:
418: /*
1.105 kristaps 419: * Allocate a word and check whether it's punctuation or not.
420: * Punctuation consists of those tokens found in mdoc_isdelim().
421: */
1.150 schwarze 422: static void
1.189 ! schwarze 423: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.123 schwarze 424: enum mdelim d, int may_append)
1.105 kristaps 425: {
1.131 schwarze 426:
1.150 schwarze 427: if (d == DELIM_MAX)
1.105 kristaps 428: d = mdoc_isdelim(p);
429:
1.123 schwarze 430: if (may_append &&
1.150 schwarze 431: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184 schwarze 432: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150 schwarze 433: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123 schwarze 434: mdoc_word_append(mdoc, p);
1.150 schwarze 435: return;
1.123 schwarze 436: }
437:
1.150 schwarze 438: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 439:
1.108 schwarze 440: /*
1.144 schwarze 441: * If the word consists of a bare delimiter,
442: * flag the new node accordingly,
443: * unless doing so was vetoed by the invoking macro.
444: * Always clear the veto, it is only valid for one word.
1.108 schwarze 445: */
446:
1.144 schwarze 447: if (d == DELIM_OPEN)
448: mdoc->last->flags |= MDOC_DELIMO;
449: else if (d == DELIM_CLOSE &&
450: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 451: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 452: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 453: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 454: }
1.1 kristaps 455:
1.150 schwarze 456: static void
1.189 ! schwarze 457: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1 kristaps 458: {
1.153 schwarze 459: char *p;
1.66 kristaps 460: int la;
1.1 kristaps 461:
1.150 schwarze 462: if (buf[*pos] == '\0')
463: return;
1.1 kristaps 464:
465: for (;;) {
1.66 kristaps 466: la = *pos;
1.153 schwarze 467: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 468: break;
1.123 schwarze 469: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 470:
471: /*
472: * If we encounter end-of-sentence symbols, then trigger
473: * the double-space.
474: *
1.109 kristaps 475: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 476: * the last symbol, such that `. )' will cause the
477: * correct double-spacing. However, (1) groff isn't
478: * smart enough to do this and (2) it would require
479: * knowing which symbols break this behaviour, for
1.109 kristaps 480: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 481: */
1.150 schwarze 482:
1.127 schwarze 483: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 484: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 485: }
486: }
487:
488: /*
1.153 schwarze 489: * Parse one word.
490: * If it is a macro, call it and return 1.
491: * Otherwise, allocate it and return 0.
492: */
493: static int
494: macro_or_word(MACRO_PROT_ARGS, int parsed)
495: {
496: char *p;
1.185 schwarze 497: int ntok;
1.153 schwarze 498:
499: p = buf + ppos;
500: ntok = MDOC_MAX;
1.157 schwarze 501: if (*p == '"')
1.153 schwarze 502: p++;
1.157 schwarze 503: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 504: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 505:
506: if (ntok == MDOC_MAX) {
507: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
508: mdoc_macros[tok].flags & MDOC_JOIN);
509: return(0);
510: } else {
511: if (mdoc_macros[tok].fp == in_line_eoln)
512: rew_elem(mdoc, tok);
513: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
514: if (tok == MDOC_MAX)
515: append_delims(mdoc, line, pos, buf);
516: return(1);
517: }
518: }
519:
520: /*
1.131 schwarze 521: * Close out block partial/full explicit.
1.1 kristaps 522: */
1.151 schwarze 523: static void
1.1 kristaps 524: blk_exp_close(MACRO_PROT_ARGS)
525: {
1.185 schwarze 526: struct roff_node *body; /* Our own body. */
527: struct roff_node *endbody; /* Our own end marker. */
528: struct roff_node *itblk; /* An It block starting later. */
529: struct roff_node *later; /* A sub-block starting later. */
530: struct roff_node *n; /* Search back to our block. */
1.188 schwarze 531: struct roff_node *target; /* For find_pending(). */
1.83 schwarze 532:
1.188 schwarze 533: int j, lastarg, maxargs, nl, pending;
1.55 kristaps 534: enum margserr ac;
1.185 schwarze 535: int atok, ntok;
1.1 kristaps 536: char *p;
537:
1.119 schwarze 538: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 539:
1.1 kristaps 540: switch (tok) {
1.131 schwarze 541: case MDOC_Ec:
1.1 kristaps 542: maxargs = 1;
543: break;
1.131 schwarze 544: case MDOC_Ek:
1.125 schwarze 545: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 546: /* FALLTHROUGH */
1.1 kristaps 547: default:
548: maxargs = 0;
549: break;
550: }
551:
1.83 schwarze 552: /*
553: * Search backwards for beginnings of blocks,
554: * both of our own and of pending sub-blocks.
555: */
1.151 schwarze 556:
1.83 schwarze 557: atok = rew_alt(tok);
1.171 schwarze 558: body = endbody = itblk = later = NULL;
1.119 schwarze 559: for (n = mdoc->last; n; n = n->parent) {
1.183 schwarze 560: if (n->flags & MDOC_ENDED) {
561: if ( ! (n->flags & MDOC_VALID))
562: n->flags |= MDOC_BROKEN;
1.83 schwarze 563: continue;
1.183 schwarze 564: }
1.83 schwarze 565:
566: /* Remember the start of our own body. */
1.151 schwarze 567:
1.184 schwarze 568: if (n->type == ROFFT_BODY && atok == n->tok) {
1.175 schwarze 569: if (n->end == ENDBODY_NOT)
1.83 schwarze 570: body = n;
571: continue;
572: }
573:
1.184 schwarze 574: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 575: continue;
1.160 schwarze 576:
577: if (n->tok == MDOC_It) {
1.171 schwarze 578: itblk = n;
1.160 schwarze 579: continue;
580: }
581:
1.83 schwarze 582: if (atok == n->tok) {
583: assert(body);
584:
585: /*
586: * Found the start of our own block.
587: * When there is no pending sub block,
588: * just proceed to closing out.
589: */
1.151 schwarze 590:
1.160 schwarze 591: if (later == NULL ||
1.171 schwarze 592: (tok == MDOC_El && itblk == NULL))
1.83 schwarze 593: break;
594:
1.131 schwarze 595: /*
1.167 schwarze 596: * When there is a pending sub block, postpone
597: * closing out the current block until the
598: * rew_pending() closing out the sub-block.
1.83 schwarze 599: * Mark the place where the formatting - but not
600: * the scope - of the current block ends.
601: */
1.151 schwarze 602:
1.183 schwarze 603: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
604: line, ppos, "%s breaks %s",
605: mdoc_macronames[atok],
606: mdoc_macronames[later->tok]);
607:
1.166 schwarze 608: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150 schwarze 609: atok, body, ENDBODY_SPACE);
1.151 schwarze 610:
1.183 schwarze 611: if (tok == MDOC_El)
612: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
613:
1.151 schwarze 614: /*
615: * If a block closing macro taking arguments
616: * breaks another block, put the arguments
1.166 schwarze 617: * into the end marker.
1.151 schwarze 618: */
619:
1.166 schwarze 620: if (maxargs)
1.189 ! schwarze 621: mdoc->next = ROFF_NEXT_CHILD;
1.83 schwarze 622: break;
1.182 schwarze 623: }
624:
625: /* Explicit blocks close out description lines. */
626:
627: if (n->tok == MDOC_Nd) {
628: rew_last(mdoc, n);
629: continue;
1.83 schwarze 630: }
631:
1.183 schwarze 632: /* Breaking an open sub block. */
1.151 schwarze 633:
1.183 schwarze 634: n->flags |= MDOC_BROKEN;
635: if (later == NULL)
1.83 schwarze 636: later = n;
637: }
1.166 schwarze 638:
639: if (body == NULL) {
640: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
641: line, ppos, mdoc_macronames[tok]);
642: if (maxargs && endbody == NULL) {
643: /*
644: * Stray .Ec without previous .Eo:
645: * Break the output line, keep the arguments.
646: */
647: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
648: rew_elem(mdoc, MDOC_br);
649: }
650: } else if (endbody == NULL) {
651: rew_last(mdoc, body);
652: if (maxargs)
653: mdoc_tail_alloc(mdoc, line, ppos, atok);
654: }
1.83 schwarze 655:
1.150 schwarze 656: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
657: if (buf[*pos] != '\0')
1.136 schwarze 658: mandoc_vmsg(MANDOCERR_ARG_SKIP,
659: mdoc->parse, line, ppos,
660: "%s %s", mdoc_macronames[tok],
661: buf + *pos);
1.171 schwarze 662: if (endbody == NULL && n != NULL)
1.167 schwarze 663: rew_pending(mdoc, n);
1.151 schwarze 664: return;
1.1 kristaps 665: }
666:
1.166 schwarze 667: if (endbody != NULL)
668: n = endbody;
1.148 schwarze 669: for (j = 0; ; j++) {
1.1 kristaps 670: lastarg = *pos;
671:
1.186 schwarze 672: if (j == maxargs && n != NULL)
673: rew_last(mdoc, n);
1.1 kristaps 674:
1.119 schwarze 675: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 676: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 677: break;
678:
1.155 schwarze 679: ntok = ac == ARGS_QWORD ? MDOC_MAX :
680: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 681:
1.150 schwarze 682: if (ntok == MDOC_MAX) {
683: dword(mdoc, line, lastarg, p, DELIM_MAX,
684: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 685: continue;
686: }
1.1 kristaps 687:
1.186 schwarze 688: if (n != NULL)
689: rew_last(mdoc, n);
1.122 schwarze 690: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 691: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 692: break;
1.1 kristaps 693: }
694:
1.188 schwarze 695: if (n != NULL) {
696: if (n != mdoc->last && n->flags & MDOC_BROKEN) {
697: target = n;
698: do
699: target = target->parent;
700: while ( ! (target->flags & MDOC_ENDED));
701: pending = find_pending(mdoc, ntok, line, ppos,
702: target);
703: } else
704: pending = 0;
705: if ( ! pending)
706: rew_pending(mdoc, n);
707: }
1.150 schwarze 708: if (nl)
709: append_delims(mdoc, line, pos, buf);
1.1 kristaps 710: }
711:
1.151 schwarze 712: static void
1.1 kristaps 713: in_line(MACRO_PROT_ARGS)
714: {
1.144 schwarze 715: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.185 schwarze 716: int ntok;
1.55 kristaps 717: enum margserr ac;
1.67 schwarze 718: enum mdelim d;
1.53 kristaps 719: struct mdoc_arg *arg;
720: char *p;
1.1 kristaps 721:
1.119 schwarze 722: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 723:
1.4 kristaps 724: /*
725: * Whether we allow ignored elements (those without content,
726: * usually because of reserved words) to squeak by.
727: */
1.45 kristaps 728:
1.4 kristaps 729: switch (tok) {
1.131 schwarze 730: case MDOC_An:
1.26 kristaps 731: /* FALLTHROUGH */
1.131 schwarze 732: case MDOC_Ar:
1.4 kristaps 733: /* FALLTHROUGH */
1.131 schwarze 734: case MDOC_Fl:
1.4 kristaps 735: /* FALLTHROUGH */
1.131 schwarze 736: case MDOC_Mt:
1.12 kristaps 737: /* FALLTHROUGH */
1.131 schwarze 738: case MDOC_Nm:
1.26 kristaps 739: /* FALLTHROUGH */
1.131 schwarze 740: case MDOC_Pa:
1.4 kristaps 741: nc = 1;
742: break;
743: default:
744: nc = 0;
745: break;
746: }
747:
1.152 schwarze 748: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 749:
1.144 schwarze 750: d = DELIM_NONE;
751: firstarg = 1;
1.142 schwarze 752: mayopen = 1;
1.70 kristaps 753: for (cnt = scope = 0;; ) {
1.1 kristaps 754: la = *pos;
1.119 schwarze 755: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 756:
1.144 schwarze 757: /*
758: * At the end of a macro line,
759: * opening delimiters do not suppress spacing.
760: */
761:
762: if (ac == ARGS_EOLN) {
763: if (d == DELIM_OPEN)
764: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 765: break;
1.144 schwarze 766: }
767:
768: /*
769: * The rest of the macro line is only punctuation,
770: * to be handled by append_delims().
771: * If there were no other arguments,
772: * do not allow the first one to suppress spacing,
773: * even if it turns out to be a closing one.
774: */
775:
776: if (ac == ARGS_PUNCT) {
1.176 schwarze 777: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144 schwarze 778: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 779: break;
1.144 schwarze 780: }
1.1 kristaps 781:
1.145 schwarze 782: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155 schwarze 783: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 784:
1.131 schwarze 785: /*
1.4 kristaps 786: * In this case, we've located a submacro and must
787: * execute it. Close out scope, if open. If no
788: * elements have been generated, either create one (nc)
789: * or raise a warning.
790: */
1.1 kristaps 791:
1.150 schwarze 792: if (ntok != MDOC_MAX) {
1.149 schwarze 793: if (scope)
794: rew_elem(mdoc, tok);
1.150 schwarze 795: if (nc && ! cnt) {
796: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 797: rew_last(mdoc, mdoc->last);
1.150 schwarze 798: } else if ( ! nc && ! cnt) {
1.7 kristaps 799: mdoc_argv_free(arg);
1.135 schwarze 800: mandoc_msg(MANDOCERR_MACRO_EMPTY,
801: mdoc->parse, line, ppos,
802: mdoc_macronames[tok]);
1.7 kristaps 803: }
1.151 schwarze 804: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 805: if (nl)
806: append_delims(mdoc, line, pos, buf);
1.151 schwarze 807: return;
1.131 schwarze 808: }
1.1 kristaps 809:
1.131 schwarze 810: /*
1.4 kristaps 811: * Non-quote-enclosed punctuation. Set up our scope, if
812: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 813: * the word.
1.4 kristaps 814: */
1.1 kristaps 815:
1.150 schwarze 816: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 817:
1.70 kristaps 818: if (DELIM_NONE != d) {
819: /*
820: * If we encounter closing punctuation, no word
1.144 schwarze 821: * has been emitted, no scope is open, and we're
1.70 kristaps 822: * allowed to have an empty element, then start
1.142 schwarze 823: * a new scope.
1.70 kristaps 824: */
1.142 schwarze 825: if ((d == DELIM_CLOSE ||
826: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 827: !cnt && !scope && nc && mayopen) {
1.150 schwarze 828: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 829: scope = 1;
1.142 schwarze 830: cnt++;
1.150 schwarze 831: if (tok == MDOC_Nm)
1.142 schwarze 832: mayopen = 0;
1.70 kristaps 833: }
834: /*
835: * Close out our scope, if one is open, before
836: * any punctuation.
837: */
1.149 schwarze 838: if (scope)
839: rew_elem(mdoc, tok);
1.70 kristaps 840: scope = 0;
1.145 schwarze 841: if (tok == MDOC_Fn)
842: mayopen = 0;
1.142 schwarze 843: } else if (mayopen && !scope) {
1.150 schwarze 844: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 845: scope = 1;
1.142 schwarze 846: cnt++;
1.1 kristaps 847: }
1.105 kristaps 848:
1.150 schwarze 849: dword(mdoc, line, la, p, d,
850: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 851:
852: /*
1.144 schwarze 853: * If the first argument is a closing delimiter,
854: * do not suppress spacing before it.
855: */
856:
857: if (firstarg && d == DELIM_CLOSE && !nc)
858: mdoc->last->flags &= ~MDOC_DELIMC;
859: firstarg = 0;
860:
861: /*
1.39 kristaps 862: * `Fl' macros have their scope re-opened with each new
863: * word so that the `-' can be added to each one without
864: * having to parse out spaces.
865: */
1.150 schwarze 866: if (scope && tok == MDOC_Fl) {
1.149 schwarze 867: rew_elem(mdoc, tok);
1.70 kristaps 868: scope = 0;
1.39 kristaps 869: }
1.1 kristaps 870: }
871:
1.149 schwarze 872: if (scope)
873: rew_elem(mdoc, tok);
1.4 kristaps 874:
875: /*
876: * If no elements have been collected and we're allowed to have
877: * empties (nc), open a scope and close it out. Otherwise,
878: * raise a warning.
879: */
1.45 kristaps 880:
1.150 schwarze 881: if ( ! cnt) {
882: if (nc) {
883: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
884: rew_last(mdoc, mdoc->last);
885: } else {
886: mdoc_argv_free(arg);
887: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
888: line, ppos, mdoc_macronames[tok]);
889: }
1.7 kristaps 890: }
1.150 schwarze 891: if (nl)
892: append_delims(mdoc, line, pos, buf);
1.1 kristaps 893: }
894:
1.151 schwarze 895: static void
1.1 kristaps 896: blk_full(MACRO_PROT_ARGS)
897: {
1.153 schwarze 898: int la, nl, parsed;
1.1 kristaps 899: struct mdoc_arg *arg;
1.185 schwarze 900: struct roff_node *blk; /* Our own or a broken block. */
901: struct roff_node *head; /* Our own head. */
902: struct roff_node *body; /* Our own body. */
903: struct roff_node *n;
1.59 kristaps 904: enum margserr ac, lac;
1.1 kristaps 905: char *p;
906:
1.119 schwarze 907: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 908:
1.177 schwarze 909: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
910: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
911: line, ppos, mdoc_macronames[tok]);
912: return;
913: }
914:
1.171 schwarze 915: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
916:
917: /* Here, tok is one of Sh Ss Nm Nd It. */
918:
919: blk = NULL;
920: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 921: if (n->flags & MDOC_ENDED) {
922: if ( ! (n->flags & MDOC_VALID))
923: n->flags |= MDOC_BROKEN;
924: continue;
925: }
1.184 schwarze 926: if (n->type != ROFFT_BLOCK)
1.171 schwarze 927: continue;
1.183 schwarze 928:
1.171 schwarze 929: if (tok == MDOC_It && n->tok == MDOC_Bl) {
930: if (blk != NULL) {
931: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
932: mdoc->parse, line, ppos,
933: "It breaks %s",
934: mdoc_macronames[blk->tok]);
935: rew_pending(mdoc, blk);
936: }
937: break;
938: }
939:
940: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
941: switch (tok) {
942: case MDOC_Sh:
943: /* FALLTHROUGH */
944: case MDOC_Ss:
945: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
946: mdoc->parse, line, ppos,
947: "%s breaks %s",
948: mdoc_macronames[tok],
949: mdoc_macronames[n->tok]);
950: rew_pending(mdoc, n);
1.180 schwarze 951: n = mdoc->last;
1.171 schwarze 952: continue;
953: case MDOC_It:
954: /* Delay in case it's astray. */
955: blk = n;
956: continue;
957: default:
958: break;
959: }
960: break;
961: }
962:
963: /* Here, n is one of Sh Ss Nm Nd It. */
1.138 schwarze 964:
1.171 schwarze 965: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
966: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
967: (tok != MDOC_It && n->tok == MDOC_It)))))
1.138 schwarze 968: break;
1.171 schwarze 969:
970: /* Item breaking an explicit block. */
971:
972: if (blk != NULL) {
973: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
974: mdoc->parse, line, ppos,
975: "It breaks %s",
976: mdoc_macronames[blk->tok]);
977: rew_pending(mdoc, blk);
1.172 schwarze 978: blk = NULL;
1.171 schwarze 979: }
980:
981: /* Close out prior implicit scopes. */
982:
983: rew_last(mdoc, n);
984: }
985:
986: /* Skip items outside lists. */
987:
988: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138 schwarze 989: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
990: line, ppos, "It %s", buf + *pos);
1.150 schwarze 991: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 992: rew_elem(mdoc, MDOC_br);
1.151 schwarze 993: return;
1.138 schwarze 994: }
1.1 kristaps 995: }
996:
1.45 kristaps 997: /*
1.109 kristaps 998: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 999: * macro openings. Implicit ones first close out prior scope
1000: * (seen above). Delay opening the head until necessary to
1001: * allow leading punctuation to print. Special consideration
1002: * for `It -column', which has phrase-part syntax instead of
1003: * regular child nodes.
1004: */
1005:
1.152 schwarze 1006: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 schwarze 1007: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 1008: head = body = NULL;
1.115 schwarze 1009:
1010: /*
1011: * Exception: Heads of `It' macros in `-diag' lists are not
1012: * parsed, even though `It' macros in general are parsed.
1013: */
1.151 schwarze 1014:
1.153 schwarze 1015: parsed = tok != MDOC_It ||
1016: mdoc->last->parent->tok != MDOC_Bl ||
1017: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 1018:
1.45 kristaps 1019: /*
1020: * The `Nd' macro has all arguments in its body: it's a hybrid
1021: * of block partial-explicit and full-implicit. Stupid.
1022: */
1.19 kristaps 1023:
1.150 schwarze 1024: if (tok == MDOC_Nd) {
1025: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 1026: rew_last(mdoc, head);
1.150 schwarze 1027: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 1028: }
1029:
1.150 schwarze 1030: if (tok == MDOC_Bk)
1.123 schwarze 1031: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1032:
1.150 schwarze 1033: ac = ARGS_PEND;
1034: for (;;) {
1.45 kristaps 1035: la = *pos;
1.150 schwarze 1036: lac = ac;
1.119 schwarze 1037: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1038: if (ac == ARGS_EOLN) {
1039: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 1040: break;
1041: /*
1042: * This is necessary: if the last token on a
1043: * line is a `Ta' or tab, then we'll get
1044: * ARGS_EOLN, so we must be smart enough to
1045: * reopen our scope if the last parse was a
1046: * phrase or partial phrase.
1047: */
1.167 schwarze 1048: if (body != NULL)
1049: rew_last(mdoc, body);
1.150 schwarze 1050: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1051: break;
1.75 kristaps 1052: }
1.174 schwarze 1053: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1054: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1055: mdoc->parse, line, la, "%s ... %s",
1056: mdoc_macronames[tok], buf + la);
1057: break;
1058: }
1.173 schwarze 1059: if (tok == MDOC_Rs) {
1060: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1061: line, la, "Rs %s", buf + la);
1062: break;
1063: }
1064: if (ac == ARGS_PUNCT)
1065: break;
1.45 kristaps 1066:
1.131 schwarze 1067: /*
1.73 kristaps 1068: * Emit leading punctuation (i.e., punctuation before
1.184 schwarze 1069: * the ROFFT_HEAD) for non-phrase types.
1.73 kristaps 1070: */
1.45 kristaps 1071:
1.150 schwarze 1072: if (head == NULL &&
1073: ac != ARGS_PEND &&
1074: ac != ARGS_PHRASE &&
1075: ac != ARGS_PPHRASE &&
1076: ac != ARGS_QWORD &&
1077: mdoc_isdelim(p) == DELIM_OPEN) {
1078: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1079: continue;
1080: }
1081:
1.74 kristaps 1082: /* Open a head if one hasn't been opened. */
1.45 kristaps 1083:
1.150 schwarze 1084: if (head == NULL)
1085: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1086:
1.150 schwarze 1087: if (ac == ARGS_PHRASE ||
1088: ac == ARGS_PEND ||
1089: ac == ARGS_PPHRASE) {
1.151 schwarze 1090:
1.73 kristaps 1091: /*
1.74 kristaps 1092: * If we haven't opened a body yet, rewind the
1093: * head; if we have, rewind that instead.
1094: */
1095:
1.167 schwarze 1096: rew_last(mdoc, body == NULL ? head : body);
1.150 schwarze 1097: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1098:
1099: /*
1.73 kristaps 1100: * Process phrases: set whether we're in a
1101: * partial-phrase (this effects line handling)
1102: * then call down into the phrase parser.
1103: */
1.74 kristaps 1104:
1.150 schwarze 1105: if (ac == ARGS_PPHRASE)
1.119 schwarze 1106: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1107: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1108: mdoc->flags |= MDOC_PPHRASE;
1.154 schwarze 1109: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1110: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1111: continue;
1112: }
1113:
1.153 schwarze 1114: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1115: break;
1.45 kristaps 1116: }
1.1 kristaps 1117:
1.165 schwarze 1118: if (blk->flags & MDOC_VALID)
1119: return;
1.150 schwarze 1120: if (head == NULL)
1121: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.174 schwarze 1122: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150 schwarze 1123: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1124: if (body != NULL)
1.77 kristaps 1125: goto out;
1.187 schwarze 1126: if (find_pending(mdoc, tok, line, ppos, head))
1.183 schwarze 1127: return;
1.47 kristaps 1128:
1.45 kristaps 1129: /* Close out scopes to remain in a consistent state. */
1130:
1.167 schwarze 1131: rew_last(mdoc, head);
1132: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1133: out:
1.150 schwarze 1134: if (mdoc->flags & MDOC_FREECOL) {
1.167 schwarze 1135: rew_last(mdoc, body);
1136: rew_last(mdoc, blk);
1.150 schwarze 1137: mdoc->flags &= ~MDOC_FREECOL;
1138: }
1.1 kristaps 1139: }
1140:
1.151 schwarze 1141: static void
1.1 kristaps 1142: blk_part_imp(MACRO_PROT_ARGS)
1143: {
1.63 kristaps 1144: int la, nl;
1.55 kristaps 1145: enum margserr ac;
1.1 kristaps 1146: char *p;
1.185 schwarze 1147: struct roff_node *blk; /* saved block context */
1148: struct roff_node *body; /* saved body context */
1149: struct roff_node *n;
1.1 kristaps 1150:
1.119 schwarze 1151: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1152:
1.43 kristaps 1153: /*
1154: * A macro that spans to the end of the line. This is generally
1155: * (but not necessarily) called as the first macro. The block
1156: * has a head as the immediate child, which is always empty,
1157: * followed by zero or more opening punctuation nodes, then the
1158: * body (which may be empty, depending on the macro), then zero
1159: * or more closing punctuation nodes.
1160: */
1.32 kristaps 1161:
1.150 schwarze 1162: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.162 schwarze 1163: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1164:
1.43 kristaps 1165: /*
1166: * Open the body scope "on-demand", that is, after we've
1167: * processed all our the leading delimiters (open parenthesis,
1168: * etc.).
1169: */
1.1 kristaps 1170:
1.43 kristaps 1171: for (body = NULL; ; ) {
1.32 kristaps 1172: la = *pos;
1.119 schwarze 1173: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1174: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1175: break;
1176:
1.150 schwarze 1177: if (body == NULL && ac != ARGS_QWORD &&
1178: mdoc_isdelim(p) == DELIM_OPEN) {
1179: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1180: continue;
1.123 schwarze 1181: }
1.1 kristaps 1182:
1.150 schwarze 1183: if (body == NULL)
1184: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1185:
1.153 schwarze 1186: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1187: break;
1.1 kristaps 1188: }
1.150 schwarze 1189: if (body == NULL)
1190: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1191:
1.187 schwarze 1192: if (find_pending(mdoc, tok, line, ppos, body))
1.183 schwarze 1193: return;
1194:
1.164 schwarze 1195: rew_last(mdoc, body);
1.150 schwarze 1196: if (nl)
1197: append_delims(mdoc, line, pos, buf);
1.166 schwarze 1198: rew_pending(mdoc, blk);
1.117 schwarze 1199:
1200: /* Move trailing .Ns out of scope. */
1201:
1202: for (n = body->child; n && n->next; n = n->next)
1203: /* Do nothing. */ ;
1.150 schwarze 1204: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1205: mdoc_node_relink(mdoc, n);
1.1 kristaps 1206: }
1207:
1.151 schwarze 1208: static void
1.1 kristaps 1209: blk_part_exp(MACRO_PROT_ARGS)
1210: {
1.60 kristaps 1211: int la, nl;
1.55 kristaps 1212: enum margserr ac;
1.185 schwarze 1213: struct roff_node *head; /* keep track of head */
1.1 kristaps 1214: char *p;
1215:
1.119 schwarze 1216: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1217:
1.43 kristaps 1218: /*
1219: * The opening of an explicit macro having zero or more leading
1220: * punctuation nodes; a head with optional single element (the
1221: * case of `Eo'); and a body that may be empty.
1222: */
1.32 kristaps 1223:
1.150 schwarze 1224: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163 schwarze 1225: head = NULL;
1226: for (;;) {
1.32 kristaps 1227: la = *pos;
1.119 schwarze 1228: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1229: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1230: break;
1.43 kristaps 1231:
1232: /* Flush out leading punctuation. */
1233:
1.150 schwarze 1234: if (head == NULL && ac != ARGS_QWORD &&
1235: mdoc_isdelim(p) == DELIM_OPEN) {
1236: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1237: continue;
1.123 schwarze 1238: }
1.43 kristaps 1239:
1.150 schwarze 1240: if (head == NULL) {
1241: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1242: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1243: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1244: rew_last(mdoc, head);
1245: mdoc_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1246: if (tok == MDOC_Eo)
1.43 kristaps 1247: continue;
1.1 kristaps 1248: }
1.43 kristaps 1249:
1.153 schwarze 1250: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1251: break;
1.1 kristaps 1252: }
1253:
1.43 kristaps 1254: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1255:
1.163 schwarze 1256: if (head == NULL) {
1257: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.150 schwarze 1258: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1259: }
1.150 schwarze 1260: if (nl)
1261: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1262: }
1263:
1.151 schwarze 1264: static void
1.1 kristaps 1265: in_line_argn(MACRO_PROT_ARGS)
1266: {
1.53 kristaps 1267: struct mdoc_arg *arg;
1268: char *p;
1.181 schwarze 1269: enum margserr ac;
1.185 schwarze 1270: int ntok;
1.181 schwarze 1271: int state; /* arg#; -1: not yet open; -2: closed */
1272: int la, maxargs, nl;
1.1 kristaps 1273:
1.156 schwarze 1274: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1275:
1.46 kristaps 1276: /*
1277: * A line macro that has a fixed number of arguments (maxargs).
1278: * Only open the scope once the first non-leading-punctuation is
1279: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1280: * keep it open until the maximum number of arguments are
1281: * exhausted.
1282: */
1.1 kristaps 1283:
1284: switch (tok) {
1.131 schwarze 1285: case MDOC_Ap:
1.1 kristaps 1286: /* FALLTHROUGH */
1.131 schwarze 1287: case MDOC_Ns:
1.1 kristaps 1288: /* FALLTHROUGH */
1.131 schwarze 1289: case MDOC_Ux:
1.1 kristaps 1290: maxargs = 0;
1291: break;
1.131 schwarze 1292: case MDOC_Bx:
1.101 kristaps 1293: /* FALLTHROUGH */
1.132 schwarze 1294: case MDOC_Es:
1295: /* FALLTHROUGH */
1.131 schwarze 1296: case MDOC_Xr:
1.42 kristaps 1297: maxargs = 2;
1298: break;
1.1 kristaps 1299: default:
1300: maxargs = 1;
1301: break;
1302: }
1303:
1.152 schwarze 1304: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1305:
1.181 schwarze 1306: state = -1;
1.156 schwarze 1307: p = NULL;
1308: for (;;) {
1.32 kristaps 1309: la = *pos;
1.119 schwarze 1310: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181 schwarze 1311:
1312: if (ac == ARGS_WORD && state == -1 &&
1313: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1314: mdoc_isdelim(p) == DELIM_OPEN) {
1315: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1316: continue;
1317: }
1318:
1319: if (state == -1 && tok != MDOC_In &&
1320: tok != MDOC_St && tok != MDOC_Xr) {
1321: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1322: state = 0;
1323: }
1324:
1.156 schwarze 1325: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181 schwarze 1326: if (abs(state) < 2 && tok == MDOC_Pf)
1.156 schwarze 1327: mandoc_vmsg(MANDOCERR_PF_SKIP,
1328: mdoc->parse, line, ppos, "Pf %s",
1329: p == NULL ? "at eol" : p);
1.1 kristaps 1330: break;
1.156 schwarze 1331: }
1.1 kristaps 1332:
1.181 schwarze 1333: if (state == maxargs) {
1.149 schwarze 1334: rew_elem(mdoc, tok);
1.181 schwarze 1335: state = -2;
1.46 kristaps 1336: }
1337:
1.181 schwarze 1338: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.156 schwarze 1339: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1340:
1.150 schwarze 1341: if (ntok != MDOC_MAX) {
1.181 schwarze 1342: if (state >= 0) {
1.149 schwarze 1343: rew_elem(mdoc, tok);
1.181 schwarze 1344: state = -2;
1345: }
1.151 schwarze 1346: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1347: break;
1348: }
1349:
1.181 schwarze 1350: if (ac == ARGS_QWORD ||
1351: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1352: mdoc_isdelim(p) == DELIM_NONE) {
1353: if (state == -1) {
1354: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1355: state = 1;
1356: } else if (state >= 0)
1357: state++;
1358: } else if (state >= 0) {
1.149 schwarze 1359: rew_elem(mdoc, tok);
1.181 schwarze 1360: state = -2;
1.1 kristaps 1361: }
1.42 kristaps 1362:
1.150 schwarze 1363: dword(mdoc, line, la, p, DELIM_MAX,
1364: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1365: }
1366:
1.181 schwarze 1367: if (state == -1) {
1368: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1369: line, ppos, mdoc_macronames[tok]);
1370: return;
1.156 schwarze 1371: }
1.181 schwarze 1372:
1373: if (state == 0 && tok == MDOC_Pf)
1374: append_delims(mdoc, line, pos, buf);
1375: if (state >= 0)
1.149 schwarze 1376: rew_elem(mdoc, tok);
1.150 schwarze 1377: if (nl)
1378: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1379: }
1380:
1.151 schwarze 1381: static void
1.1 kristaps 1382: in_line_eoln(MACRO_PROT_ARGS)
1383: {
1.185 schwarze 1384: struct roff_node *n;
1.170 schwarze 1385: struct mdoc_arg *arg;
1.1 kristaps 1386:
1.170 schwarze 1387: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1388: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1389: n = mdoc->last;
1.189 ! schwarze 1390: if (mdoc->next == ROFF_NEXT_SIBLING)
1.170 schwarze 1391: n = n->parent;
1392: if (n->tok == MDOC_Nm)
1393: rew_last(mdoc, mdoc->last->parent);
1.178 schwarze 1394: }
1395:
1.179 schwarze 1396: if (buf[*pos] == '\0' &&
1397: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178 schwarze 1398: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179 schwarze 1399: line, ppos, mdoc_macronames[tok]);
1.178 schwarze 1400: return;
1.170 schwarze 1401: }
1.90 schwarze 1402:
1.152 schwarze 1403: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1404: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1405: if (parse_rest(mdoc, tok, line, pos, buf))
1406: return;
1407: rew_elem(mdoc, tok);
1408: }
1409:
1410: /*
1411: * The simplest argument parser available: Parse the remaining
1412: * words until the end of the phrase or line and return 0
1413: * or until the next macro, call that macro, and return 1.
1414: */
1415: static int
1.189 ! schwarze 1416: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.154 schwarze 1417: {
1418: int la;
1.1 kristaps 1419:
1420: for (;;) {
1421: la = *pos;
1.153 schwarze 1422: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1423: return(0);
1.153 schwarze 1424: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1425: return(1);
1.1 kristaps 1426: }
1427: }
1428:
1.151 schwarze 1429: static void
1.41 kristaps 1430: ctx_synopsis(MACRO_PROT_ARGS)
1431: {
1.60 kristaps 1432:
1.151 schwarze 1433: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1434: in_line(mdoc, tok, line, ppos, pos, buf);
1435: else if (tok == MDOC_Nm)
1436: blk_full(mdoc, tok, line, ppos, pos, buf);
1437: else {
1438: assert(tok == MDOC_Vt);
1439: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1440: }
1.1 kristaps 1441: }
1442:
1.24 kristaps 1443: /*
1444: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1445: * They're unusual because they're basically free-form text until a
1446: * macro is encountered.
1447: */
1.151 schwarze 1448: static void
1.75 kristaps 1449: phrase_ta(MACRO_PROT_ARGS)
1450: {
1.185 schwarze 1451: struct roff_node *body, *n;
1.75 kristaps 1452:
1.121 schwarze 1453: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1454:
1.167 schwarze 1455: body = NULL;
1456: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 1457: if (n->flags & MDOC_ENDED)
1.167 schwarze 1458: continue;
1.184 schwarze 1459: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167 schwarze 1460: body = n;
1461: if (n->tok == MDOC_Bl)
1462: break;
1463: }
1464:
1.151 schwarze 1465: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1466: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1467: line, ppos, "Ta");
1.151 schwarze 1468: return;
1.121 schwarze 1469: }
1.75 kristaps 1470:
1.121 schwarze 1471: /* Advance to the next column. */
1.150 schwarze 1472:
1.167 schwarze 1473: rew_last(mdoc, body);
1.150 schwarze 1474: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 schwarze 1475: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1476: }
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