Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.146
1.146 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.145 2015/04/18 16:04:40 schwarze Exp $ */
1.1 kristaps 2: /*
1.74 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.118 schwarze 4: * Copyright (c) 2010, 2012-2015 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.140 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.2 schwarze 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.140 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.2 schwarze 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.100 schwarze 18: #include <sys/types.h>
19:
1.1 kristaps 20: #include <assert.h>
21: #include <ctype.h>
22: #include <stdlib.h>
23: #include <stdio.h>
24: #include <string.h>
1.26 schwarze 25: #include <time.h>
1.1 kristaps 26:
1.140 schwarze 27: #include "mandoc.h"
28: #include "roff.h"
1.66 schwarze 29: #include "mdoc.h"
1.140 schwarze 30: #include "libmandoc.h"
1.146 ! schwarze 31: #include "roff_int.h"
1.1 kristaps 32: #include "libmdoc.h"
33:
1.107 schwarze 34: static void blk_full(MACRO_PROT_ARGS);
35: static void blk_exp_close(MACRO_PROT_ARGS);
36: static void blk_part_exp(MACRO_PROT_ARGS);
37: static void blk_part_imp(MACRO_PROT_ARGS);
38: static void ctx_synopsis(MACRO_PROT_ARGS);
39: static void in_line_eoln(MACRO_PROT_ARGS);
40: static void in_line_argn(MACRO_PROT_ARGS);
41: static void in_line(MACRO_PROT_ARGS);
42: static void phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 43:
1.145 schwarze 44: static void append_delims(struct roff_man *, int, int *, char *);
45: static void dword(struct roff_man *, int, int, const char *,
1.143 schwarze 46: enum mdelim, int);
1.145 schwarze 47: static int find_pending(struct roff_man *, int, int, int,
1.143 schwarze 48: struct roff_node *);
1.145 schwarze 49: static int lookup(struct roff_man *, int, int, int, const char *);
1.109 schwarze 50: static int macro_or_word(MACRO_PROT_ARGS, int);
1.145 schwarze 51: static int parse_rest(struct roff_man *, int, int, int *, char *);
1.141 schwarze 52: static int rew_alt(int);
1.145 schwarze 53: static void rew_elem(struct roff_man *, int);
54: static void rew_last(struct roff_man *, const struct roff_node *);
55: static void rew_pending(struct roff_man *,
56: const struct roff_node *);
1.1 kristaps 57:
58: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.80 schwarze 59: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 60: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
61: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
62: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.80 schwarze 63: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
64: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
65: { in_line_eoln, 0 }, /* Pp */
66: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
67: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 68: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.80 schwarze 69: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 70: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.80 schwarze 71: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
72: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
73: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
74: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 75: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.86 schwarze 76: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 77: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.80 schwarze 78: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
79: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 81: { in_line_eoln, 0 }, /* Ex */
1.80 schwarze 82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
83: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.80 schwarze 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.85 schwarze 87: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.11 schwarze 88: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.80 schwarze 89: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
90: { blk_full, MDOC_JOIN }, /* Nd */
91: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 92: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.89 schwarze 93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
95: { in_line_eoln, 0 }, /* Rv */
1.80 schwarze 96: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.80 schwarze 98: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.28 schwarze 99: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.80 schwarze 100: { in_line_eoln, MDOC_JOIN }, /* %A */
101: { in_line_eoln, MDOC_JOIN }, /* %B */
102: { in_line_eoln, MDOC_JOIN }, /* %D */
103: { in_line_eoln, MDOC_JOIN }, /* %I */
104: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 105: { in_line_eoln, 0 }, /* %N */
1.80 schwarze 106: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 107: { in_line_eoln, 0 }, /* %P */
1.80 schwarze 108: { in_line_eoln, MDOC_JOIN }, /* %R */
109: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 110: { in_line_eoln, 0 }, /* %V */
1.80 schwarze 111: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
112: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
113: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
114: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
115: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 116: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.80 schwarze 117: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
118: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
119: { blk_full, MDOC_EXPLICIT }, /* Bf */
120: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
121: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
122: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 123: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
124: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
125: { in_line_eoln, 0 }, /* Db */
1.80 schwarze 126: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
127: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
128: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
129: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
130: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
131: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
132: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
133: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 134: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
135: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 136: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.100 schwarze 137: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.80 schwarze 138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
139: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.80 schwarze 142: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
143: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.35 schwarze 144: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.80 schwarze 145: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
146: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
147: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
148: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
149: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
150: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
151: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
152: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
153: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
154: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 155: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.80 schwarze 156: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
157: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
158: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
159: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
160: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.103 schwarze 161: { in_line_argn, 0 }, /* Sm */
1.80 schwarze 162: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
163: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 164: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.80 schwarze 165: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 166: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
167: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.80 schwarze 168: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
169: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
170: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
171: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
172: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
173: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
174: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 175: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.80 schwarze 176: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 177: { in_line_eoln, 0 }, /* Bt */
178: { in_line_eoln, 0 }, /* Hf */
1.89 schwarze 179: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 180: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 181: { in_line, 0 }, /* Lb */
1.80 schwarze 182: { in_line_eoln, 0 }, /* Lp */
183: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
184: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
185: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
186: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
187: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
188: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
189: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
190: { in_line_eoln, MDOC_JOIN }, /* %C */
1.89 schwarze 191: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
192: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 193: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.80 schwarze 194: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.13 schwarze 195: { in_line_eoln, 0 }, /* br */
196: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 197: { in_line_eoln, 0 }, /* %U */
1.80 schwarze 198: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.99 schwarze 199: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 200: };
201:
202: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
203:
204:
205: /*
206: * This is called at the end of parsing. It must traverse up the tree,
207: * closing out open [implicit] scopes. Obviously, open explicit scopes
208: * are errors.
209: */
1.107 schwarze 210: void
1.145 schwarze 211: mdoc_macroend(struct roff_man *mdoc)
1.1 kristaps 212: {
1.141 schwarze 213: struct roff_node *n;
1.1 kristaps 214:
215: /* Scan for open explicit scopes. */
216:
1.107 schwarze 217: n = mdoc->last->flags & MDOC_VALID ?
1.88 schwarze 218: mdoc->last->parent : mdoc->last;
1.1 kristaps 219:
1.56 schwarze 220: for ( ; n; n = n->parent)
1.140 schwarze 221: if (n->type == ROFFT_BLOCK &&
1.107 schwarze 222: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.94 schwarze 223: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
224: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 225:
1.22 schwarze 226: /* Rewind to the first. */
227:
1.105 schwarze 228: rew_last(mdoc, mdoc->first);
1.1 kristaps 229: }
230:
1.22 schwarze 231: /*
1.109 schwarze 232: * Look up the macro at *p called by "from",
233: * or as a line macro if from == MDOC_MAX.
1.22 schwarze 234: */
1.141 schwarze 235: static int
1.145 schwarze 236: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.21 schwarze 237: {
1.141 schwarze 238: int res;
1.1 kristaps 239:
1.109 schwarze 240: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
241: res = mdoc_hash_find(p);
1.111 schwarze 242: if (res != MDOC_MAX) {
243: if (mdoc_macros[res].flags & MDOC_CALLABLE)
244: return(res);
245: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
246: mandoc_msg(MANDOCERR_MACRO_CALL,
247: mdoc->parse, line, ppos, p);
248: }
1.109 schwarze 249: }
1.1 kristaps 250: return(MDOC_MAX);
251: }
252:
1.122 schwarze 253: /*
254: * Rewind up to and including a specific node.
255: */
1.105 schwarze 256: static void
1.145 schwarze 257: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1 kristaps 258: {
1.141 schwarze 259: struct roff_node *n, *np;
1.1 kristaps 260:
1.142 schwarze 261: if (to->flags & MDOC_VALID)
262: return;
263:
1.145 schwarze 264: mdoc->next = ROFF_NEXT_SIBLING;
1.1 kristaps 265: while (mdoc->last != to) {
1.63 schwarze 266: /*
267: * Save the parent here, because we may delete the
1.76 schwarze 268: * mdoc->last node in the post-validation phase and reset
269: * it to mdoc->last->parent, causing a step in the closing
1.63 schwarze 270: * out to be lost.
271: */
272: np = mdoc->last->parent;
1.105 schwarze 273: mdoc_valid_post(mdoc);
1.61 schwarze 274: n = mdoc->last;
1.63 schwarze 275: mdoc->last = np;
1.1 kristaps 276: assert(mdoc->last);
1.61 schwarze 277: mdoc->last->last = n;
1.1 kristaps 278: }
1.105 schwarze 279: mdoc_valid_post(mdoc);
1.1 kristaps 280: }
281:
1.22 schwarze 282: /*
1.122 schwarze 283: * Rewind up to a specific block, including all blocks that broke it.
284: */
285: static void
1.145 schwarze 286: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.122 schwarze 287: {
288:
1.139 schwarze 289: for (;;) {
290: rew_last(mdoc, n);
291:
292: switch (n->type) {
1.140 schwarze 293: case ROFFT_HEAD:
1.146 ! schwarze 294: roff_body_alloc(mdoc, n->line, n->pos, n->tok);
1.139 schwarze 295: return;
1.140 schwarze 296: case ROFFT_BLOCK:
1.139 schwarze 297: break;
298: default:
299: return;
300: }
1.122 schwarze 301:
1.139 schwarze 302: if ( ! (n->flags & MDOC_BROKEN))
303: return;
1.122 schwarze 304:
1.139 schwarze 305: for (;;) {
306: if ((n = n->parent) == NULL)
307: return;
308:
1.140 schwarze 309: if (n->type == ROFFT_BLOCK ||
310: n->type == ROFFT_HEAD) {
1.139 schwarze 311: if (n->flags & MDOC_ENDED)
312: break;
313: else
314: return;
315: }
316: }
1.122 schwarze 317: }
318: }
319:
320: /*
1.48 schwarze 321: * For a block closing macro, return the corresponding opening one.
322: * Otherwise, return the macro itself.
1.22 schwarze 323: */
1.141 schwarze 324: static int
325: rew_alt(int tok)
1.1 kristaps 326: {
327: switch (tok) {
1.88 schwarze 328: case MDOC_Ac:
1.1 kristaps 329: return(MDOC_Ao);
1.88 schwarze 330: case MDOC_Bc:
1.1 kristaps 331: return(MDOC_Bo);
1.88 schwarze 332: case MDOC_Brc:
1.1 kristaps 333: return(MDOC_Bro);
1.88 schwarze 334: case MDOC_Dc:
1.1 kristaps 335: return(MDOC_Do);
1.88 schwarze 336: case MDOC_Ec:
1.1 kristaps 337: return(MDOC_Eo);
1.88 schwarze 338: case MDOC_Ed:
1.1 kristaps 339: return(MDOC_Bd);
1.88 schwarze 340: case MDOC_Ef:
1.1 kristaps 341: return(MDOC_Bf);
1.88 schwarze 342: case MDOC_Ek:
1.1 kristaps 343: return(MDOC_Bk);
1.88 schwarze 344: case MDOC_El:
1.1 kristaps 345: return(MDOC_Bl);
1.88 schwarze 346: case MDOC_Fc:
1.1 kristaps 347: return(MDOC_Fo);
1.88 schwarze 348: case MDOC_Oc:
1.1 kristaps 349: return(MDOC_Oo);
1.88 schwarze 350: case MDOC_Pc:
1.1 kristaps 351: return(MDOC_Po);
1.88 schwarze 352: case MDOC_Qc:
1.1 kristaps 353: return(MDOC_Qo);
1.88 schwarze 354: case MDOC_Re:
1.1 kristaps 355: return(MDOC_Rs);
1.88 schwarze 356: case MDOC_Sc:
1.1 kristaps 357: return(MDOC_So);
1.88 schwarze 358: case MDOC_Xc:
1.1 kristaps 359: return(MDOC_Xo);
360: default:
1.48 schwarze 361: return(tok);
1.1 kristaps 362: }
363: /* NOTREACHED */
364: }
365:
1.105 schwarze 366: static void
1.145 schwarze 367: rew_elem(struct roff_man *mdoc, int tok)
1.1 kristaps 368: {
1.141 schwarze 369: struct roff_node *n;
1.1 kristaps 370:
371: n = mdoc->last;
1.140 schwarze 372: if (n->type != ROFFT_ELEM)
1.1 kristaps 373: n = n->parent;
1.140 schwarze 374: assert(n->type == ROFFT_ELEM);
1.1 kristaps 375: assert(tok == n->tok);
1.105 schwarze 376: rew_last(mdoc, n);
1.1 kristaps 377: }
378:
1.47 schwarze 379: /*
1.143 schwarze 380: * If there is an open sub-block of the target requiring
381: * explicit close-out, postpone closing out the target until
382: * the rew_pending() call closing out the sub-block.
383: */
384: static int
1.145 schwarze 385: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.143 schwarze 386: struct roff_node *target)
387: {
388: struct roff_node *n;
389: int irc;
390:
391: irc = 0;
392: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
393: if (n->flags & MDOC_ENDED) {
394: if ( ! (n->flags & MDOC_VALID))
395: n->flags |= MDOC_BROKEN;
396: continue;
397: }
398: if (n->type == ROFFT_BLOCK &&
399: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
400: irc = 1;
401: n->flags = MDOC_BROKEN;
402: if (target->type == ROFFT_HEAD)
403: target->flags = MDOC_ENDED;
404: else if ( ! (target->flags & MDOC_ENDED)) {
405: mandoc_vmsg(MANDOCERR_BLK_NEST,
406: mdoc->parse, line, ppos,
407: "%s breaks %s", mdoc_macronames[tok],
408: mdoc_macronames[n->tok]);
409: mdoc_endbody_alloc(mdoc, line, ppos,
410: tok, target, ENDBODY_NOSPACE);
411: }
412: }
413: }
414: return(irc);
415: }
416:
417: /*
1.66 schwarze 418: * Allocate a word and check whether it's punctuation or not.
419: * Punctuation consists of those tokens found in mdoc_isdelim().
420: */
1.106 schwarze 421: static void
1.145 schwarze 422: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.80 schwarze 423: enum mdelim d, int may_append)
1.66 schwarze 424: {
1.88 schwarze 425:
1.106 schwarze 426: if (d == DELIM_MAX)
1.66 schwarze 427: d = mdoc_isdelim(p);
428:
1.80 schwarze 429: if (may_append &&
1.106 schwarze 430: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.140 schwarze 431: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.106 schwarze 432: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.80 schwarze 433: mdoc_word_append(mdoc, p);
1.106 schwarze 434: return;
1.80 schwarze 435: }
436:
1.106 schwarze 437: mdoc_word_alloc(mdoc, line, col, p);
1.66 schwarze 438:
1.71 schwarze 439: /*
1.100 schwarze 440: * If the word consists of a bare delimiter,
441: * flag the new node accordingly,
442: * unless doing so was vetoed by the invoking macro.
443: * Always clear the veto, it is only valid for one word.
1.71 schwarze 444: */
445:
1.100 schwarze 446: if (d == DELIM_OPEN)
447: mdoc->last->flags |= MDOC_DELIMO;
448: else if (d == DELIM_CLOSE &&
449: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 450: mdoc->last->parent->tok != MDOC_Fd)
1.76 schwarze 451: mdoc->last->flags |= MDOC_DELIMC;
1.100 schwarze 452: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 453: }
1.1 kristaps 454:
1.106 schwarze 455: static void
1.145 schwarze 456: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1 kristaps 457: {
1.109 schwarze 458: char *p;
1.42 schwarze 459: int la;
1.1 kristaps 460:
1.106 schwarze 461: if (buf[*pos] == '\0')
462: return;
1.1 kristaps 463:
464: for (;;) {
1.42 schwarze 465: la = *pos;
1.109 schwarze 466: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 467: break;
1.80 schwarze 468: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 469:
1.42 schwarze 470: /*
471: * If we encounter end-of-sentence symbols, then trigger
472: * the double-space.
473: *
1.68 schwarze 474: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 475: * the last symbol, such that `. )' will cause the
476: * correct double-spacing. However, (1) groff isn't
477: * smart enough to do this and (2) it would require
478: * knowing which symbols break this behaviour, for
1.68 schwarze 479: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 480: */
1.106 schwarze 481:
1.84 schwarze 482: if (mandoc_eos(p, strlen(p)))
1.76 schwarze 483: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 484: }
485: }
486:
487: /*
1.109 schwarze 488: * Parse one word.
489: * If it is a macro, call it and return 1.
490: * Otherwise, allocate it and return 0.
491: */
492: static int
493: macro_or_word(MACRO_PROT_ARGS, int parsed)
494: {
495: char *p;
1.141 schwarze 496: int ntok;
1.109 schwarze 497:
498: p = buf + ppos;
499: ntok = MDOC_MAX;
1.113 schwarze 500: if (*p == '"')
1.109 schwarze 501: p++;
1.113 schwarze 502: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 503: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 504:
505: if (ntok == MDOC_MAX) {
506: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
507: mdoc_macros[tok].flags & MDOC_JOIN);
508: return(0);
509: } else {
510: if (mdoc_macros[tok].fp == in_line_eoln)
511: rew_elem(mdoc, tok);
512: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
513: if (tok == MDOC_MAX)
514: append_delims(mdoc, line, pos, buf);
515: return(1);
516: }
517: }
518:
519: /*
1.88 schwarze 520: * Close out block partial/full explicit.
1.1 kristaps 521: */
1.107 schwarze 522: static void
1.1 kristaps 523: blk_exp_close(MACRO_PROT_ARGS)
524: {
1.141 schwarze 525: struct roff_node *body; /* Our own body. */
526: struct roff_node *endbody; /* Our own end marker. */
527: struct roff_node *itblk; /* An It block starting later. */
528: struct roff_node *later; /* A sub-block starting later. */
529: struct roff_node *n; /* Search back to our block. */
1.144 schwarze 530: struct roff_node *target; /* For find_pending(). */
1.47 schwarze 531:
1.144 schwarze 532: int j, lastarg, maxargs, nl, pending;
1.36 schwarze 533: enum margserr ac;
1.141 schwarze 534: int atok, ntok;
1.1 kristaps 535: char *p;
536:
1.76 schwarze 537: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 538:
1.1 kristaps 539: switch (tok) {
1.88 schwarze 540: case MDOC_Ec:
1.1 kristaps 541: maxargs = 1;
542: break;
1.88 schwarze 543: case MDOC_Ek:
1.82 schwarze 544: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 545: /* FALLTHROUGH */
1.1 kristaps 546: default:
547: maxargs = 0;
548: break;
549: }
550:
1.47 schwarze 551: /*
552: * Search backwards for beginnings of blocks,
553: * both of our own and of pending sub-blocks.
554: */
1.107 schwarze 555:
1.47 schwarze 556: atok = rew_alt(tok);
1.127 schwarze 557: body = endbody = itblk = later = NULL;
1.76 schwarze 558: for (n = mdoc->last; n; n = n->parent) {
1.139 schwarze 559: if (n->flags & MDOC_ENDED) {
560: if ( ! (n->flags & MDOC_VALID))
561: n->flags |= MDOC_BROKEN;
1.47 schwarze 562: continue;
1.139 schwarze 563: }
1.47 schwarze 564:
565: /* Remember the start of our own body. */
1.107 schwarze 566:
1.140 schwarze 567: if (n->type == ROFFT_BODY && atok == n->tok) {
1.131 schwarze 568: if (n->end == ENDBODY_NOT)
1.47 schwarze 569: body = n;
570: continue;
571: }
572:
1.140 schwarze 573: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.47 schwarze 574: continue;
1.116 schwarze 575:
576: if (n->tok == MDOC_It) {
1.127 schwarze 577: itblk = n;
1.116 schwarze 578: continue;
579: }
580:
1.47 schwarze 581: if (atok == n->tok) {
582: assert(body);
583:
584: /*
585: * Found the start of our own block.
586: * When there is no pending sub block,
587: * just proceed to closing out.
588: */
1.107 schwarze 589:
1.116 schwarze 590: if (later == NULL ||
1.127 schwarze 591: (tok == MDOC_El && itblk == NULL))
1.47 schwarze 592: break;
593:
1.88 schwarze 594: /*
1.123 schwarze 595: * When there is a pending sub block, postpone
596: * closing out the current block until the
597: * rew_pending() closing out the sub-block.
1.47 schwarze 598: * Mark the place where the formatting - but not
599: * the scope - of the current block ends.
600: */
1.107 schwarze 601:
1.139 schwarze 602: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
603: line, ppos, "%s breaks %s",
604: mdoc_macronames[atok],
605: mdoc_macronames[later->tok]);
606:
1.122 schwarze 607: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.106 schwarze 608: atok, body, ENDBODY_SPACE);
1.107 schwarze 609:
1.139 schwarze 610: if (tok == MDOC_El)
611: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
612:
1.107 schwarze 613: /*
614: * If a block closing macro taking arguments
615: * breaks another block, put the arguments
1.122 schwarze 616: * into the end marker.
1.107 schwarze 617: */
618:
1.122 schwarze 619: if (maxargs)
1.145 schwarze 620: mdoc->next = ROFF_NEXT_CHILD;
1.47 schwarze 621: break;
1.138 schwarze 622: }
623:
624: /* Explicit blocks close out description lines. */
625:
626: if (n->tok == MDOC_Nd) {
627: rew_last(mdoc, n);
628: continue;
1.47 schwarze 629: }
630:
1.139 schwarze 631: /* Breaking an open sub block. */
1.107 schwarze 632:
1.139 schwarze 633: n->flags |= MDOC_BROKEN;
634: if (later == NULL)
1.47 schwarze 635: later = n;
636: }
1.122 schwarze 637:
638: if (body == NULL) {
639: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
640: line, ppos, mdoc_macronames[tok]);
641: if (maxargs && endbody == NULL) {
642: /*
643: * Stray .Ec without previous .Eo:
644: * Break the output line, keep the arguments.
645: */
646: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
647: rew_elem(mdoc, MDOC_br);
648: }
649: } else if (endbody == NULL) {
650: rew_last(mdoc, body);
651: if (maxargs)
652: mdoc_tail_alloc(mdoc, line, ppos, atok);
653: }
1.47 schwarze 654:
1.106 schwarze 655: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
656: if (buf[*pos] != '\0')
1.93 schwarze 657: mandoc_vmsg(MANDOCERR_ARG_SKIP,
658: mdoc->parse, line, ppos,
659: "%s %s", mdoc_macronames[tok],
660: buf + *pos);
1.127 schwarze 661: if (endbody == NULL && n != NULL)
1.123 schwarze 662: rew_pending(mdoc, n);
1.107 schwarze 663: return;
1.1 kristaps 664: }
665:
1.122 schwarze 666: if (endbody != NULL)
667: n = endbody;
1.104 schwarze 668: for (j = 0; ; j++) {
1.1 kristaps 669: lastarg = *pos;
670:
1.142 schwarze 671: if (j == maxargs && n != NULL)
672: rew_last(mdoc, n);
1.1 kristaps 673:
1.76 schwarze 674: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 675: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 676: break;
677:
1.111 schwarze 678: ntok = ac == ARGS_QWORD ? MDOC_MAX :
679: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 680:
1.106 schwarze 681: if (ntok == MDOC_MAX) {
682: dword(mdoc, line, lastarg, p, DELIM_MAX,
683: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 684: continue;
685: }
1.1 kristaps 686:
1.142 schwarze 687: if (n != NULL)
688: rew_last(mdoc, n);
1.79 schwarze 689: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 690: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 691: break;
1.1 kristaps 692: }
693:
1.144 schwarze 694: if (n != NULL) {
695: if (n != mdoc->last && n->flags & MDOC_BROKEN) {
696: target = n;
697: do
698: target = target->parent;
699: while ( ! (target->flags & MDOC_ENDED));
700: pending = find_pending(mdoc, ntok, line, ppos,
701: target);
702: } else
703: pending = 0;
704: if ( ! pending)
705: rew_pending(mdoc, n);
706: }
1.106 schwarze 707: if (nl)
708: append_delims(mdoc, line, pos, buf);
1.1 kristaps 709: }
710:
1.107 schwarze 711: static void
1.1 kristaps 712: in_line(MACRO_PROT_ARGS)
713: {
1.100 schwarze 714: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.141 schwarze 715: int ntok;
1.36 schwarze 716: enum margserr ac;
1.40 schwarze 717: enum mdelim d;
1.36 schwarze 718: struct mdoc_arg *arg;
719: char *p;
1.1 kristaps 720:
1.76 schwarze 721: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 722:
1.1 kristaps 723: /*
724: * Whether we allow ignored elements (those without content,
725: * usually because of reserved words) to squeak by.
726: */
1.32 schwarze 727:
1.1 kristaps 728: switch (tok) {
1.88 schwarze 729: case MDOC_An:
1.19 schwarze 730: /* FALLTHROUGH */
1.88 schwarze 731: case MDOC_Ar:
1.1 kristaps 732: /* FALLTHROUGH */
1.88 schwarze 733: case MDOC_Fl:
1.1 kristaps 734: /* FALLTHROUGH */
1.88 schwarze 735: case MDOC_Mt:
1.18 schwarze 736: /* FALLTHROUGH */
1.88 schwarze 737: case MDOC_Nm:
1.19 schwarze 738: /* FALLTHROUGH */
1.88 schwarze 739: case MDOC_Pa:
1.1 kristaps 740: nc = 1;
741: break;
742: default:
743: nc = 0;
744: break;
745: }
746:
1.108 schwarze 747: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 748:
1.100 schwarze 749: d = DELIM_NONE;
750: firstarg = 1;
1.98 schwarze 751: mayopen = 1;
1.45 schwarze 752: for (cnt = scope = 0;; ) {
1.1 kristaps 753: la = *pos;
1.76 schwarze 754: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 755:
1.100 schwarze 756: /*
757: * At the end of a macro line,
758: * opening delimiters do not suppress spacing.
759: */
760:
761: if (ac == ARGS_EOLN) {
762: if (d == DELIM_OPEN)
763: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 764: break;
1.100 schwarze 765: }
766:
767: /*
768: * The rest of the macro line is only punctuation,
769: * to be handled by append_delims().
770: * If there were no other arguments,
771: * do not allow the first one to suppress spacing,
772: * even if it turns out to be a closing one.
773: */
774:
775: if (ac == ARGS_PUNCT) {
1.132 schwarze 776: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.100 schwarze 777: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 778: break;
1.100 schwarze 779: }
1.1 kristaps 780:
1.101 schwarze 781: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.111 schwarze 782: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 783:
1.88 schwarze 784: /*
1.1 kristaps 785: * In this case, we've located a submacro and must
786: * execute it. Close out scope, if open. If no
787: * elements have been generated, either create one (nc)
788: * or raise a warning.
789: */
790:
1.106 schwarze 791: if (ntok != MDOC_MAX) {
1.105 schwarze 792: if (scope)
793: rew_elem(mdoc, tok);
1.106 schwarze 794: if (nc && ! cnt) {
795: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 796: rew_last(mdoc, mdoc->last);
1.106 schwarze 797: } else if ( ! nc && ! cnt) {
1.1 kristaps 798: mdoc_argv_free(arg);
1.92 schwarze 799: mandoc_msg(MANDOCERR_MACRO_EMPTY,
800: mdoc->parse, line, ppos,
801: mdoc_macronames[tok]);
1.1 kristaps 802: }
1.107 schwarze 803: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 804: if (nl)
805: append_delims(mdoc, line, pos, buf);
1.107 schwarze 806: return;
1.88 schwarze 807: }
1.1 kristaps 808:
1.88 schwarze 809: /*
1.1 kristaps 810: * Non-quote-enclosed punctuation. Set up our scope, if
811: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 812: * the word.
1.1 kristaps 813: */
814:
1.106 schwarze 815: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 816:
1.45 schwarze 817: if (DELIM_NONE != d) {
818: /*
819: * If we encounter closing punctuation, no word
1.100 schwarze 820: * has been emitted, no scope is open, and we're
1.45 schwarze 821: * allowed to have an empty element, then start
1.98 schwarze 822: * a new scope.
1.45 schwarze 823: */
1.98 schwarze 824: if ((d == DELIM_CLOSE ||
825: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 826: !cnt && !scope && nc && mayopen) {
1.106 schwarze 827: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 828: scope = 1;
1.98 schwarze 829: cnt++;
1.106 schwarze 830: if (tok == MDOC_Nm)
1.98 schwarze 831: mayopen = 0;
1.45 schwarze 832: }
833: /*
834: * Close out our scope, if one is open, before
835: * any punctuation.
836: */
1.105 schwarze 837: if (scope)
838: rew_elem(mdoc, tok);
1.45 schwarze 839: scope = 0;
1.101 schwarze 840: if (tok == MDOC_Fn)
841: mayopen = 0;
1.98 schwarze 842: } else if (mayopen && !scope) {
1.106 schwarze 843: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 844: scope = 1;
1.98 schwarze 845: cnt++;
1.1 kristaps 846: }
1.66 schwarze 847:
1.106 schwarze 848: dword(mdoc, line, la, p, d,
849: MDOC_JOIN & mdoc_macros[tok].flags);
1.27 schwarze 850:
851: /*
1.100 schwarze 852: * If the first argument is a closing delimiter,
853: * do not suppress spacing before it.
854: */
855:
856: if (firstarg && d == DELIM_CLOSE && !nc)
857: mdoc->last->flags &= ~MDOC_DELIMC;
858: firstarg = 0;
859:
860: /*
1.27 schwarze 861: * `Fl' macros have their scope re-opened with each new
862: * word so that the `-' can be added to each one without
863: * having to parse out spaces.
864: */
1.106 schwarze 865: if (scope && tok == MDOC_Fl) {
1.105 schwarze 866: rew_elem(mdoc, tok);
1.45 schwarze 867: scope = 0;
1.27 schwarze 868: }
1.1 kristaps 869: }
870:
1.105 schwarze 871: if (scope)
872: rew_elem(mdoc, tok);
1.1 kristaps 873:
874: /*
875: * If no elements have been collected and we're allowed to have
876: * empties (nc), open a scope and close it out. Otherwise,
877: * raise a warning.
878: */
1.32 schwarze 879:
1.106 schwarze 880: if ( ! cnt) {
881: if (nc) {
882: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
883: rew_last(mdoc, mdoc->last);
884: } else {
885: mdoc_argv_free(arg);
886: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
887: line, ppos, mdoc_macronames[tok]);
888: }
1.1 kristaps 889: }
1.106 schwarze 890: if (nl)
891: append_delims(mdoc, line, pos, buf);
1.1 kristaps 892: }
893:
1.107 schwarze 894: static void
1.1 kristaps 895: blk_full(MACRO_PROT_ARGS)
896: {
1.109 schwarze 897: int la, nl, parsed;
1.1 kristaps 898: struct mdoc_arg *arg;
1.141 schwarze 899: struct roff_node *blk; /* Our own or a broken block. */
900: struct roff_node *head; /* Our own head. */
901: struct roff_node *body; /* Our own body. */
902: struct roff_node *n;
1.37 schwarze 903: enum margserr ac, lac;
1.1 kristaps 904: char *p;
905:
1.76 schwarze 906: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 907:
1.133 schwarze 908: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
909: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
910: line, ppos, mdoc_macronames[tok]);
911: return;
912: }
913:
1.127 schwarze 914: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
915:
916: /* Here, tok is one of Sh Ss Nm Nd It. */
917:
918: blk = NULL;
919: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 920: if (n->flags & MDOC_ENDED) {
921: if ( ! (n->flags & MDOC_VALID))
922: n->flags |= MDOC_BROKEN;
923: continue;
924: }
1.140 schwarze 925: if (n->type != ROFFT_BLOCK)
1.127 schwarze 926: continue;
1.139 schwarze 927:
1.127 schwarze 928: if (tok == MDOC_It && n->tok == MDOC_Bl) {
929: if (blk != NULL) {
930: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
931: mdoc->parse, line, ppos,
932: "It breaks %s",
933: mdoc_macronames[blk->tok]);
934: rew_pending(mdoc, blk);
935: }
936: break;
937: }
938:
939: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
940: switch (tok) {
941: case MDOC_Sh:
942: /* FALLTHROUGH */
943: case MDOC_Ss:
944: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
945: mdoc->parse, line, ppos,
946: "%s breaks %s",
947: mdoc_macronames[tok],
948: mdoc_macronames[n->tok]);
949: rew_pending(mdoc, n);
1.136 schwarze 950: n = mdoc->last;
1.127 schwarze 951: continue;
952: case MDOC_It:
953: /* Delay in case it's astray. */
954: blk = n;
955: continue;
956: default:
957: break;
958: }
959: break;
960: }
961:
962: /* Here, n is one of Sh Ss Nm Nd It. */
1.95 schwarze 963:
1.127 schwarze 964: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
965: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
966: (tok != MDOC_It && n->tok == MDOC_It)))))
1.95 schwarze 967: break;
1.127 schwarze 968:
969: /* Item breaking an explicit block. */
970:
971: if (blk != NULL) {
972: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
973: mdoc->parse, line, ppos,
974: "It breaks %s",
975: mdoc_macronames[blk->tok]);
976: rew_pending(mdoc, blk);
1.128 schwarze 977: blk = NULL;
1.127 schwarze 978: }
979:
980: /* Close out prior implicit scopes. */
981:
982: rew_last(mdoc, n);
983: }
984:
985: /* Skip items outside lists. */
986:
987: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.95 schwarze 988: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
989: line, ppos, "It %s", buf + *pos);
1.106 schwarze 990: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.105 schwarze 991: rew_elem(mdoc, MDOC_br);
1.107 schwarze 992: return;
1.95 schwarze 993: }
1.1 kristaps 994: }
995:
1.32 schwarze 996: /*
1.68 schwarze 997: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 998: * macro openings. Implicit ones first close out prior scope
999: * (seen above). Delay opening the head until necessary to
1000: * allow leading punctuation to print. Special consideration
1001: * for `It -column', which has phrase-part syntax instead of
1002: * regular child nodes.
1003: */
1004:
1.108 schwarze 1005: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.121 schwarze 1006: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1007: head = body = NULL;
1.1 kristaps 1008:
1.32 schwarze 1009: /*
1.73 schwarze 1010: * Exception: Heads of `It' macros in `-diag' lists are not
1011: * parsed, even though `It' macros in general are parsed.
1012: */
1.107 schwarze 1013:
1.109 schwarze 1014: parsed = tok != MDOC_It ||
1015: mdoc->last->parent->tok != MDOC_Bl ||
1016: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1017:
1018: /*
1.32 schwarze 1019: * The `Nd' macro has all arguments in its body: it's a hybrid
1020: * of block partial-explicit and full-implicit. Stupid.
1021: */
1.12 schwarze 1022:
1.106 schwarze 1023: if (tok == MDOC_Nd) {
1.146 ! schwarze 1024: head = roff_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 1025: rew_last(mdoc, head);
1.146 ! schwarze 1026: body = roff_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1027: }
1028:
1.106 schwarze 1029: if (tok == MDOC_Bk)
1.80 schwarze 1030: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1031:
1.106 schwarze 1032: ac = ARGS_PEND;
1033: for (;;) {
1.32 schwarze 1034: la = *pos;
1.106 schwarze 1035: lac = ac;
1.76 schwarze 1036: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1037: if (ac == ARGS_EOLN) {
1038: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.46 schwarze 1039: break;
1040: /*
1041: * This is necessary: if the last token on a
1042: * line is a `Ta' or tab, then we'll get
1043: * ARGS_EOLN, so we must be smart enough to
1044: * reopen our scope if the last parse was a
1045: * phrase or partial phrase.
1046: */
1.123 schwarze 1047: if (body != NULL)
1048: rew_last(mdoc, body);
1.146 ! schwarze 1049: body = roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1050: break;
1.41 schwarze 1051: }
1.130 schwarze 1052: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1053: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1054: mdoc->parse, line, la, "%s ... %s",
1055: mdoc_macronames[tok], buf + la);
1056: break;
1057: }
1.129 schwarze 1058: if (tok == MDOC_Rs) {
1059: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1060: line, la, "Rs %s", buf + la);
1061: break;
1062: }
1063: if (ac == ARGS_PUNCT)
1064: break;
1.41 schwarze 1065:
1.88 schwarze 1066: /*
1.46 schwarze 1067: * Emit leading punctuation (i.e., punctuation before
1.140 schwarze 1068: * the ROFFT_HEAD) for non-phrase types.
1.46 schwarze 1069: */
1.32 schwarze 1070:
1.106 schwarze 1071: if (head == NULL &&
1072: ac != ARGS_PEND &&
1073: ac != ARGS_PHRASE &&
1074: ac != ARGS_PPHRASE &&
1075: ac != ARGS_QWORD &&
1076: mdoc_isdelim(p) == DELIM_OPEN) {
1077: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1078: continue;
1079: }
1080:
1.46 schwarze 1081: /* Open a head if one hasn't been opened. */
1.32 schwarze 1082:
1.106 schwarze 1083: if (head == NULL)
1.146 ! schwarze 1084: head = roff_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1085:
1.106 schwarze 1086: if (ac == ARGS_PHRASE ||
1087: ac == ARGS_PEND ||
1088: ac == ARGS_PPHRASE) {
1.107 schwarze 1089:
1.46 schwarze 1090: /*
1091: * If we haven't opened a body yet, rewind the
1092: * head; if we have, rewind that instead.
1093: */
1094:
1.123 schwarze 1095: rew_last(mdoc, body == NULL ? head : body);
1.146 ! schwarze 1096: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1097:
1098: /*
1099: * Process phrases: set whether we're in a
1100: * partial-phrase (this effects line handling)
1101: * then call down into the phrase parser.
1102: */
1103:
1.106 schwarze 1104: if (ac == ARGS_PPHRASE)
1.76 schwarze 1105: mdoc->flags |= MDOC_PPHRASE;
1.106 schwarze 1106: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.76 schwarze 1107: mdoc->flags |= MDOC_PPHRASE;
1.110 schwarze 1108: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.76 schwarze 1109: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1110: continue;
1111: }
1112:
1.109 schwarze 1113: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1114: break;
1.32 schwarze 1115: }
1.1 kristaps 1116:
1.121 schwarze 1117: if (blk->flags & MDOC_VALID)
1118: return;
1.106 schwarze 1119: if (head == NULL)
1.146 ! schwarze 1120: head = roff_head_alloc(mdoc, line, ppos, tok);
1.130 schwarze 1121: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.106 schwarze 1122: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1123: if (body != NULL)
1.46 schwarze 1124: goto out;
1.143 schwarze 1125: if (find_pending(mdoc, tok, line, ppos, head))
1.139 schwarze 1126: return;
1.54 schwarze 1127:
1.32 schwarze 1128: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1129:
1.123 schwarze 1130: rew_last(mdoc, head);
1.146 ! schwarze 1131: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1132: out:
1.106 schwarze 1133: if (mdoc->flags & MDOC_FREECOL) {
1.123 schwarze 1134: rew_last(mdoc, body);
1135: rew_last(mdoc, blk);
1.106 schwarze 1136: mdoc->flags &= ~MDOC_FREECOL;
1137: }
1.1 kristaps 1138: }
1139:
1.107 schwarze 1140: static void
1.1 kristaps 1141: blk_part_imp(MACRO_PROT_ARGS)
1142: {
1.43 schwarze 1143: int la, nl;
1.36 schwarze 1144: enum margserr ac;
1.1 kristaps 1145: char *p;
1.141 schwarze 1146: struct roff_node *blk; /* saved block context */
1147: struct roff_node *body; /* saved body context */
1148: struct roff_node *n;
1.1 kristaps 1149:
1.76 schwarze 1150: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1151:
1.32 schwarze 1152: /*
1153: * A macro that spans to the end of the line. This is generally
1154: * (but not necessarily) called as the first macro. The block
1155: * has a head as the immediate child, which is always empty,
1156: * followed by zero or more opening punctuation nodes, then the
1157: * body (which may be empty, depending on the macro), then zero
1158: * or more closing punctuation nodes.
1159: */
1.22 schwarze 1160:
1.106 schwarze 1161: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.146 ! schwarze 1162: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1163:
1.32 schwarze 1164: /*
1165: * Open the body scope "on-demand", that is, after we've
1166: * processed all our the leading delimiters (open parenthesis,
1167: * etc.).
1168: */
1.1 kristaps 1169:
1.32 schwarze 1170: for (body = NULL; ; ) {
1.22 schwarze 1171: la = *pos;
1.76 schwarze 1172: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1173: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1174: break;
1175:
1.106 schwarze 1176: if (body == NULL && ac != ARGS_QWORD &&
1177: mdoc_isdelim(p) == DELIM_OPEN) {
1178: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1179: continue;
1.80 schwarze 1180: }
1.1 kristaps 1181:
1.106 schwarze 1182: if (body == NULL)
1.146 ! schwarze 1183: body = roff_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1184:
1.109 schwarze 1185: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1186: break;
1.32 schwarze 1187: }
1.106 schwarze 1188: if (body == NULL)
1.146 ! schwarze 1189: body = roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1190:
1.143 schwarze 1191: if (find_pending(mdoc, tok, line, ppos, body))
1.139 schwarze 1192: return;
1193:
1.120 schwarze 1194: rew_last(mdoc, body);
1.106 schwarze 1195: if (nl)
1196: append_delims(mdoc, line, pos, buf);
1.122 schwarze 1197: rew_pending(mdoc, blk);
1.74 schwarze 1198:
1199: /* Move trailing .Ns out of scope. */
1200:
1201: for (n = body->child; n && n->next; n = n->next)
1202: /* Do nothing. */ ;
1.106 schwarze 1203: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1204: mdoc_node_relink(mdoc, n);
1.1 kristaps 1205: }
1206:
1.107 schwarze 1207: static void
1.1 kristaps 1208: blk_part_exp(MACRO_PROT_ARGS)
1209: {
1.37 schwarze 1210: int la, nl;
1.36 schwarze 1211: enum margserr ac;
1.141 schwarze 1212: struct roff_node *head; /* keep track of head */
1.1 kristaps 1213: char *p;
1214:
1.76 schwarze 1215: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1216:
1.32 schwarze 1217: /*
1218: * The opening of an explicit macro having zero or more leading
1219: * punctuation nodes; a head with optional single element (the
1220: * case of `Eo'); and a body that may be empty.
1221: */
1.22 schwarze 1222:
1.106 schwarze 1223: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.119 schwarze 1224: head = NULL;
1225: for (;;) {
1.22 schwarze 1226: la = *pos;
1.76 schwarze 1227: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1228: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1229: break;
1230:
1.32 schwarze 1231: /* Flush out leading punctuation. */
1232:
1.106 schwarze 1233: if (head == NULL && ac != ARGS_QWORD &&
1234: mdoc_isdelim(p) == DELIM_OPEN) {
1235: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1236: continue;
1.80 schwarze 1237: }
1.32 schwarze 1238:
1.106 schwarze 1239: if (head == NULL) {
1.146 ! schwarze 1240: head = roff_head_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1241: if (tok == MDOC_Eo) /* Not parsed. */
1.106 schwarze 1242: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.119 schwarze 1243: rew_last(mdoc, head);
1.146 ! schwarze 1244: roff_body_alloc(mdoc, line, ppos, tok);
1.106 schwarze 1245: if (tok == MDOC_Eo)
1.32 schwarze 1246: continue;
1247: }
1248:
1.109 schwarze 1249: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1250: break;
1.1 kristaps 1251: }
1252:
1.32 schwarze 1253: /* Clean-up to leave in a consistent state. */
1254:
1.119 schwarze 1255: if (head == NULL) {
1.146 ! schwarze 1256: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
! 1257: roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1258: }
1.106 schwarze 1259: if (nl)
1260: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1261: }
1262:
1.107 schwarze 1263: static void
1.1 kristaps 1264: in_line_argn(MACRO_PROT_ARGS)
1265: {
1.36 schwarze 1266: struct mdoc_arg *arg;
1267: char *p;
1.137 schwarze 1268: enum margserr ac;
1.141 schwarze 1269: int ntok;
1.137 schwarze 1270: int state; /* arg#; -1: not yet open; -2: closed */
1271: int la, maxargs, nl;
1.1 kristaps 1272:
1.112 schwarze 1273: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1274:
1.32 schwarze 1275: /*
1276: * A line macro that has a fixed number of arguments (maxargs).
1277: * Only open the scope once the first non-leading-punctuation is
1278: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1279: * keep it open until the maximum number of arguments are
1280: * exhausted.
1281: */
1.1 kristaps 1282:
1283: switch (tok) {
1.88 schwarze 1284: case MDOC_Ap:
1.1 kristaps 1285: /* FALLTHROUGH */
1.88 schwarze 1286: case MDOC_Ns:
1.1 kristaps 1287: /* FALLTHROUGH */
1.88 schwarze 1288: case MDOC_Ux:
1.1 kristaps 1289: maxargs = 0;
1290: break;
1.88 schwarze 1291: case MDOC_Bx:
1.64 schwarze 1292: /* FALLTHROUGH */
1.89 schwarze 1293: case MDOC_Es:
1294: /* FALLTHROUGH */
1.88 schwarze 1295: case MDOC_Xr:
1.28 schwarze 1296: maxargs = 2;
1297: break;
1.1 kristaps 1298: default:
1299: maxargs = 1;
1300: break;
1301: }
1302:
1.108 schwarze 1303: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1304:
1.137 schwarze 1305: state = -1;
1.112 schwarze 1306: p = NULL;
1307: for (;;) {
1.22 schwarze 1308: la = *pos;
1.76 schwarze 1309: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.137 schwarze 1310:
1311: if (ac == ARGS_WORD && state == -1 &&
1312: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1313: mdoc_isdelim(p) == DELIM_OPEN) {
1314: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1315: continue;
1316: }
1317:
1318: if (state == -1 && tok != MDOC_In &&
1319: tok != MDOC_St && tok != MDOC_Xr) {
1320: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1321: state = 0;
1322: }
1323:
1.112 schwarze 1324: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.137 schwarze 1325: if (abs(state) < 2 && tok == MDOC_Pf)
1.112 schwarze 1326: mandoc_vmsg(MANDOCERR_PF_SKIP,
1327: mdoc->parse, line, ppos, "Pf %s",
1328: p == NULL ? "at eol" : p);
1.1 kristaps 1329: break;
1.112 schwarze 1330: }
1.1 kristaps 1331:
1.137 schwarze 1332: if (state == maxargs) {
1.105 schwarze 1333: rew_elem(mdoc, tok);
1.137 schwarze 1334: state = -2;
1.32 schwarze 1335: }
1336:
1.137 schwarze 1337: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.112 schwarze 1338: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1339:
1.106 schwarze 1340: if (ntok != MDOC_MAX) {
1.137 schwarze 1341: if (state >= 0) {
1.105 schwarze 1342: rew_elem(mdoc, tok);
1.137 schwarze 1343: state = -2;
1344: }
1.107 schwarze 1345: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1346: break;
1347: }
1348:
1.137 schwarze 1349: if (ac == ARGS_QWORD ||
1350: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1351: mdoc_isdelim(p) == DELIM_NONE) {
1352: if (state == -1) {
1353: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1354: state = 1;
1355: } else if (state >= 0)
1356: state++;
1357: } else if (state >= 0) {
1.105 schwarze 1358: rew_elem(mdoc, tok);
1.137 schwarze 1359: state = -2;
1.28 schwarze 1360: }
1361:
1.106 schwarze 1362: dword(mdoc, line, la, p, DELIM_MAX,
1363: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1364: }
1365:
1.137 schwarze 1366: if (state == -1) {
1367: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1368: line, ppos, mdoc_macronames[tok]);
1369: return;
1.112 schwarze 1370: }
1.137 schwarze 1371:
1372: if (state == 0 && tok == MDOC_Pf)
1373: append_delims(mdoc, line, pos, buf);
1374: if (state >= 0)
1.105 schwarze 1375: rew_elem(mdoc, tok);
1.106 schwarze 1376: if (nl)
1377: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1378: }
1379:
1.107 schwarze 1380: static void
1.1 kristaps 1381: in_line_eoln(MACRO_PROT_ARGS)
1382: {
1.141 schwarze 1383: struct roff_node *n;
1.126 schwarze 1384: struct mdoc_arg *arg;
1.1 kristaps 1385:
1.126 schwarze 1386: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1387: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1388: n = mdoc->last;
1.145 schwarze 1389: if (mdoc->next == ROFF_NEXT_SIBLING)
1.126 schwarze 1390: n = n->parent;
1391: if (n->tok == MDOC_Nm)
1392: rew_last(mdoc, mdoc->last->parent);
1.134 schwarze 1393: }
1394:
1.135 schwarze 1395: if (buf[*pos] == '\0' &&
1396: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.134 schwarze 1397: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.135 schwarze 1398: line, ppos, mdoc_macronames[tok]);
1.134 schwarze 1399: return;
1.126 schwarze 1400: }
1.53 schwarze 1401:
1.108 schwarze 1402: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1403: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1404: if (parse_rest(mdoc, tok, line, pos, buf))
1405: return;
1406: rew_elem(mdoc, tok);
1407: }
1408:
1409: /*
1410: * The simplest argument parser available: Parse the remaining
1411: * words until the end of the phrase or line and return 0
1412: * or until the next macro, call that macro, and return 1.
1413: */
1414: static int
1.145 schwarze 1415: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.110 schwarze 1416: {
1417: int la;
1.1 kristaps 1418:
1419: for (;;) {
1420: la = *pos;
1.109 schwarze 1421: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.110 schwarze 1422: return(0);
1.109 schwarze 1423: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.110 schwarze 1424: return(1);
1.1 kristaps 1425: }
1.28 schwarze 1426: }
1427:
1.107 schwarze 1428: static void
1.28 schwarze 1429: ctx_synopsis(MACRO_PROT_ARGS)
1430: {
1.37 schwarze 1431:
1.107 schwarze 1432: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1433: in_line(mdoc, tok, line, ppos, pos, buf);
1434: else if (tok == MDOC_Nm)
1435: blk_full(mdoc, tok, line, ppos, pos, buf);
1436: else {
1437: assert(tok == MDOC_Vt);
1438: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1439: }
1.1 kristaps 1440: }
1441:
1.17 schwarze 1442: /*
1443: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1444: * They're unusual because they're basically free-form text until a
1445: * macro is encountered.
1446: */
1.107 schwarze 1447: static void
1.46 schwarze 1448: phrase_ta(MACRO_PROT_ARGS)
1449: {
1.141 schwarze 1450: struct roff_node *body, *n;
1.46 schwarze 1451:
1.78 schwarze 1452: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1453:
1.123 schwarze 1454: body = NULL;
1455: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 1456: if (n->flags & MDOC_ENDED)
1.123 schwarze 1457: continue;
1.140 schwarze 1458: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.123 schwarze 1459: body = n;
1460: if (n->tok == MDOC_Bl)
1461: break;
1462: }
1463:
1.107 schwarze 1464: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1465: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1466: line, ppos, "Ta");
1.107 schwarze 1467: return;
1.78 schwarze 1468: }
1.46 schwarze 1469:
1.78 schwarze 1470: /* Advance to the next column. */
1.106 schwarze 1471:
1.123 schwarze 1472: rew_last(mdoc, body);
1.146 ! schwarze 1473: roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.110 schwarze 1474: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.46 schwarze 1475: }
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