Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.163
1.163 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.162 2015/10/20 02:00:49 schwarze Exp $ */
1.1 kristaps 2: /*
1.74 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.118 schwarze 4: * Copyright (c) 2010, 2012-2015 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.140 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.2 schwarze 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.140 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.2 schwarze 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.100 schwarze 18: #include <sys/types.h>
19:
1.1 kristaps 20: #include <assert.h>
21: #include <ctype.h>
22: #include <stdlib.h>
23: #include <stdio.h>
24: #include <string.h>
1.26 schwarze 25: #include <time.h>
1.1 kristaps 26:
1.140 schwarze 27: #include "mandoc.h"
28: #include "roff.h"
1.66 schwarze 29: #include "mdoc.h"
1.140 schwarze 30: #include "libmandoc.h"
1.146 schwarze 31: #include "roff_int.h"
1.1 kristaps 32: #include "libmdoc.h"
33:
1.107 schwarze 34: static void blk_full(MACRO_PROT_ARGS);
35: static void blk_exp_close(MACRO_PROT_ARGS);
36: static void blk_part_exp(MACRO_PROT_ARGS);
37: static void blk_part_imp(MACRO_PROT_ARGS);
38: static void ctx_synopsis(MACRO_PROT_ARGS);
39: static void in_line_eoln(MACRO_PROT_ARGS);
40: static void in_line_argn(MACRO_PROT_ARGS);
41: static void in_line(MACRO_PROT_ARGS);
42: static void phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 43:
1.145 schwarze 44: static void append_delims(struct roff_man *, int, int *, char *);
45: static void dword(struct roff_man *, int, int, const char *,
1.143 schwarze 46: enum mdelim, int);
1.145 schwarze 47: static int find_pending(struct roff_man *, int, int, int,
1.143 schwarze 48: struct roff_node *);
1.145 schwarze 49: static int lookup(struct roff_man *, int, int, int, const char *);
1.109 schwarze 50: static int macro_or_word(MACRO_PROT_ARGS, int);
1.145 schwarze 51: static int parse_rest(struct roff_man *, int, int, int *, char *);
1.141 schwarze 52: static int rew_alt(int);
1.145 schwarze 53: static void rew_elem(struct roff_man *, int);
54: static void rew_last(struct roff_man *, const struct roff_node *);
55: static void rew_pending(struct roff_man *,
56: const struct roff_node *);
1.1 kristaps 57:
58: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.80 schwarze 59: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 60: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
61: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
62: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.80 schwarze 63: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
64: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
65: { in_line_eoln, 0 }, /* Pp */
66: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
67: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 68: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.80 schwarze 69: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 70: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.80 schwarze 71: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
72: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
73: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
74: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 75: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.86 schwarze 76: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 77: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.80 schwarze 78: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
79: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 81: { in_line_eoln, 0 }, /* Ex */
1.80 schwarze 82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
83: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.80 schwarze 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.85 schwarze 87: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.11 schwarze 88: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.80 schwarze 89: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
90: { blk_full, MDOC_JOIN }, /* Nd */
91: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 92: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.89 schwarze 93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
95: { in_line_eoln, 0 }, /* Rv */
1.80 schwarze 96: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.80 schwarze 98: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.28 schwarze 99: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.80 schwarze 100: { in_line_eoln, MDOC_JOIN }, /* %A */
101: { in_line_eoln, MDOC_JOIN }, /* %B */
102: { in_line_eoln, MDOC_JOIN }, /* %D */
103: { in_line_eoln, MDOC_JOIN }, /* %I */
104: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 105: { in_line_eoln, 0 }, /* %N */
1.80 schwarze 106: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 107: { in_line_eoln, 0 }, /* %P */
1.80 schwarze 108: { in_line_eoln, MDOC_JOIN }, /* %R */
109: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 110: { in_line_eoln, 0 }, /* %V */
1.80 schwarze 111: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
112: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
113: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
114: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
115: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 116: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.80 schwarze 117: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
118: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
119: { blk_full, MDOC_EXPLICIT }, /* Bf */
120: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
121: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
122: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 123: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
124: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
125: { in_line_eoln, 0 }, /* Db */
1.80 schwarze 126: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
127: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
128: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
129: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
130: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
131: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
132: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
133: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 134: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
135: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 136: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.100 schwarze 137: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.80 schwarze 138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
139: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.80 schwarze 142: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
143: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.35 schwarze 144: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.80 schwarze 145: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
146: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
147: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
148: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
149: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
150: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
151: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
152: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
153: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
154: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 155: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.80 schwarze 156: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
157: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
158: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
159: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
160: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.103 schwarze 161: { in_line_argn, 0 }, /* Sm */
1.80 schwarze 162: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
163: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 164: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.80 schwarze 165: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 166: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
167: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.80 schwarze 168: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
169: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
170: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
171: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
172: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
173: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
174: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 175: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.80 schwarze 176: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 177: { in_line_eoln, 0 }, /* Bt */
178: { in_line_eoln, 0 }, /* Hf */
1.89 schwarze 179: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 180: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 181: { in_line, 0 }, /* Lb */
1.80 schwarze 182: { in_line_eoln, 0 }, /* Lp */
183: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
184: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
185: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
186: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
187: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
188: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
189: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
190: { in_line_eoln, MDOC_JOIN }, /* %C */
1.89 schwarze 191: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
192: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 193: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.80 schwarze 194: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.13 schwarze 195: { in_line_eoln, 0 }, /* br */
196: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 197: { in_line_eoln, 0 }, /* %U */
1.80 schwarze 198: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.99 schwarze 199: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 200: };
201:
202: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
203:
204:
205: /*
206: * This is called at the end of parsing. It must traverse up the tree,
207: * closing out open [implicit] scopes. Obviously, open explicit scopes
208: * are errors.
209: */
1.107 schwarze 210: void
1.151 schwarze 211: mdoc_endparse(struct roff_man *mdoc)
1.1 kristaps 212: {
1.141 schwarze 213: struct roff_node *n;
1.1 kristaps 214:
215: /* Scan for open explicit scopes. */
216:
1.107 schwarze 217: n = mdoc->last->flags & MDOC_VALID ?
1.88 schwarze 218: mdoc->last->parent : mdoc->last;
1.1 kristaps 219:
1.56 schwarze 220: for ( ; n; n = n->parent)
1.140 schwarze 221: if (n->type == ROFFT_BLOCK &&
1.107 schwarze 222: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.94 schwarze 223: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
224: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 225:
1.22 schwarze 226: /* Rewind to the first. */
227:
1.105 schwarze 228: rew_last(mdoc, mdoc->first);
1.162 schwarze 229: mdoc_state_reset(mdoc);
1.1 kristaps 230: }
231:
1.22 schwarze 232: /*
1.109 schwarze 233: * Look up the macro at *p called by "from",
1.147 schwarze 234: * or as a line macro if from == TOKEN_NONE.
1.22 schwarze 235: */
1.141 schwarze 236: static int
1.145 schwarze 237: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.21 schwarze 238: {
1.141 schwarze 239: int res;
1.1 kristaps 240:
1.161 schwarze 241: if (mdoc->flags & MDOC_PHRASEQF) {
242: mdoc->flags &= ~MDOC_PHRASEQF;
243: return TOKEN_NONE;
244: }
1.147 schwarze 245: if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
1.109 schwarze 246: res = mdoc_hash_find(p);
1.147 schwarze 247: if (res != TOKEN_NONE) {
1.111 schwarze 248: if (mdoc_macros[res].flags & MDOC_CALLABLE)
1.158 schwarze 249: return res;
1.111 schwarze 250: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
251: mandoc_msg(MANDOCERR_MACRO_CALL,
252: mdoc->parse, line, ppos, p);
253: }
1.109 schwarze 254: }
1.158 schwarze 255: return TOKEN_NONE;
1.1 kristaps 256: }
257:
1.122 schwarze 258: /*
259: * Rewind up to and including a specific node.
260: */
1.105 schwarze 261: static void
1.145 schwarze 262: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1 kristaps 263: {
264:
1.142 schwarze 265: if (to->flags & MDOC_VALID)
266: return;
267:
1.1 kristaps 268: while (mdoc->last != to) {
1.162 schwarze 269: mdoc_state(mdoc, mdoc->last);
270: mdoc->last->flags |= MDOC_VALID | MDOC_ENDED;
271: mdoc->last = mdoc->last->parent;
1.1 kristaps 272: }
1.162 schwarze 273: mdoc_state(mdoc, mdoc->last);
274: mdoc->last->flags |= MDOC_VALID | MDOC_ENDED;
1.156 schwarze 275: mdoc->next = ROFF_NEXT_SIBLING;
1.1 kristaps 276: }
277:
1.22 schwarze 278: /*
1.122 schwarze 279: * Rewind up to a specific block, including all blocks that broke it.
280: */
281: static void
1.145 schwarze 282: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.122 schwarze 283: {
284:
1.139 schwarze 285: for (;;) {
286: rew_last(mdoc, n);
287:
1.150 schwarze 288: if (mdoc->last == n) {
289: switch (n->type) {
290: case ROFFT_HEAD:
291: roff_body_alloc(mdoc, n->line, n->pos,
292: n->tok);
1.163 ! schwarze 293: break;
1.150 schwarze 294: case ROFFT_BLOCK:
295: break;
296: default:
297: return;
298: }
299: if ( ! (n->flags & MDOC_BROKEN))
300: return;
301: } else
302: n = mdoc->last;
1.122 schwarze 303:
1.139 schwarze 304: for (;;) {
305: if ((n = n->parent) == NULL)
306: return;
307:
1.140 schwarze 308: if (n->type == ROFFT_BLOCK ||
309: n->type == ROFFT_HEAD) {
1.139 schwarze 310: if (n->flags & MDOC_ENDED)
311: break;
312: else
313: return;
314: }
315: }
1.122 schwarze 316: }
317: }
318:
319: /*
1.48 schwarze 320: * For a block closing macro, return the corresponding opening one.
321: * Otherwise, return the macro itself.
1.22 schwarze 322: */
1.141 schwarze 323: static int
324: rew_alt(int tok)
1.1 kristaps 325: {
326: switch (tok) {
1.88 schwarze 327: case MDOC_Ac:
1.158 schwarze 328: return MDOC_Ao;
1.88 schwarze 329: case MDOC_Bc:
1.158 schwarze 330: return MDOC_Bo;
1.88 schwarze 331: case MDOC_Brc:
1.158 schwarze 332: return MDOC_Bro;
1.88 schwarze 333: case MDOC_Dc:
1.158 schwarze 334: return MDOC_Do;
1.88 schwarze 335: case MDOC_Ec:
1.158 schwarze 336: return MDOC_Eo;
1.88 schwarze 337: case MDOC_Ed:
1.158 schwarze 338: return MDOC_Bd;
1.88 schwarze 339: case MDOC_Ef:
1.158 schwarze 340: return MDOC_Bf;
1.88 schwarze 341: case MDOC_Ek:
1.158 schwarze 342: return MDOC_Bk;
1.88 schwarze 343: case MDOC_El:
1.158 schwarze 344: return MDOC_Bl;
1.88 schwarze 345: case MDOC_Fc:
1.158 schwarze 346: return MDOC_Fo;
1.88 schwarze 347: case MDOC_Oc:
1.158 schwarze 348: return MDOC_Oo;
1.88 schwarze 349: case MDOC_Pc:
1.158 schwarze 350: return MDOC_Po;
1.88 schwarze 351: case MDOC_Qc:
1.158 schwarze 352: return MDOC_Qo;
1.88 schwarze 353: case MDOC_Re:
1.158 schwarze 354: return MDOC_Rs;
1.88 schwarze 355: case MDOC_Sc:
1.158 schwarze 356: return MDOC_So;
1.88 schwarze 357: case MDOC_Xc:
1.158 schwarze 358: return MDOC_Xo;
1.1 kristaps 359: default:
1.158 schwarze 360: return tok;
1.1 kristaps 361: }
362: }
363:
1.105 schwarze 364: static void
1.145 schwarze 365: rew_elem(struct roff_man *mdoc, int tok)
1.1 kristaps 366: {
1.141 schwarze 367: struct roff_node *n;
1.1 kristaps 368:
369: n = mdoc->last;
1.140 schwarze 370: if (n->type != ROFFT_ELEM)
1.1 kristaps 371: n = n->parent;
1.140 schwarze 372: assert(n->type == ROFFT_ELEM);
1.1 kristaps 373: assert(tok == n->tok);
1.105 schwarze 374: rew_last(mdoc, n);
1.1 kristaps 375: }
376:
1.47 schwarze 377: /*
1.143 schwarze 378: * If there is an open sub-block of the target requiring
379: * explicit close-out, postpone closing out the target until
380: * the rew_pending() call closing out the sub-block.
381: */
382: static int
1.145 schwarze 383: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.143 schwarze 384: struct roff_node *target)
385: {
386: struct roff_node *n;
387: int irc;
388:
389: irc = 0;
390: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
391: if (n->flags & MDOC_ENDED) {
392: if ( ! (n->flags & MDOC_VALID))
393: n->flags |= MDOC_BROKEN;
394: continue;
395: }
396: if (n->type == ROFFT_BLOCK &&
397: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
398: irc = 1;
399: n->flags = MDOC_BROKEN;
400: if (target->type == ROFFT_HEAD)
401: target->flags = MDOC_ENDED;
402: else if ( ! (target->flags & MDOC_ENDED)) {
403: mandoc_vmsg(MANDOCERR_BLK_NEST,
404: mdoc->parse, line, ppos,
405: "%s breaks %s", mdoc_macronames[tok],
406: mdoc_macronames[n->tok]);
407: mdoc_endbody_alloc(mdoc, line, ppos,
408: tok, target, ENDBODY_NOSPACE);
409: }
410: }
411: }
1.158 schwarze 412: return irc;
1.143 schwarze 413: }
414:
415: /*
1.66 schwarze 416: * Allocate a word and check whether it's punctuation or not.
417: * Punctuation consists of those tokens found in mdoc_isdelim().
418: */
1.106 schwarze 419: static void
1.145 schwarze 420: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.80 schwarze 421: enum mdelim d, int may_append)
1.66 schwarze 422: {
1.88 schwarze 423:
1.106 schwarze 424: if (d == DELIM_MAX)
1.66 schwarze 425: d = mdoc_isdelim(p);
426:
1.80 schwarze 427: if (may_append &&
1.106 schwarze 428: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.140 schwarze 429: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.106 schwarze 430: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.148 schwarze 431: roff_word_append(mdoc, p);
1.106 schwarze 432: return;
1.80 schwarze 433: }
434:
1.148 schwarze 435: roff_word_alloc(mdoc, line, col, p);
1.66 schwarze 436:
1.71 schwarze 437: /*
1.100 schwarze 438: * If the word consists of a bare delimiter,
439: * flag the new node accordingly,
440: * unless doing so was vetoed by the invoking macro.
441: * Always clear the veto, it is only valid for one word.
1.71 schwarze 442: */
443:
1.100 schwarze 444: if (d == DELIM_OPEN)
445: mdoc->last->flags |= MDOC_DELIMO;
446: else if (d == DELIM_CLOSE &&
447: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 448: mdoc->last->parent->tok != MDOC_Fd)
1.76 schwarze 449: mdoc->last->flags |= MDOC_DELIMC;
1.100 schwarze 450: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 451: }
1.1 kristaps 452:
1.106 schwarze 453: static void
1.145 schwarze 454: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1 kristaps 455: {
1.109 schwarze 456: char *p;
1.42 schwarze 457: int la;
1.1 kristaps 458:
1.106 schwarze 459: if (buf[*pos] == '\0')
460: return;
1.1 kristaps 461:
462: for (;;) {
1.42 schwarze 463: la = *pos;
1.147 schwarze 464: if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
465: ARGS_EOLN)
1.1 kristaps 466: break;
1.80 schwarze 467: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 468:
1.42 schwarze 469: /*
470: * If we encounter end-of-sentence symbols, then trigger
471: * the double-space.
472: *
1.68 schwarze 473: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 474: * the last symbol, such that `. )' will cause the
475: * correct double-spacing. However, (1) groff isn't
476: * smart enough to do this and (2) it would require
477: * knowing which symbols break this behaviour, for
1.68 schwarze 478: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 479: */
1.106 schwarze 480:
1.84 schwarze 481: if (mandoc_eos(p, strlen(p)))
1.76 schwarze 482: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 483: }
484: }
485:
486: /*
1.109 schwarze 487: * Parse one word.
488: * If it is a macro, call it and return 1.
489: * Otherwise, allocate it and return 0.
490: */
491: static int
492: macro_or_word(MACRO_PROT_ARGS, int parsed)
493: {
494: char *p;
1.141 schwarze 495: int ntok;
1.109 schwarze 496:
497: p = buf + ppos;
1.147 schwarze 498: ntok = TOKEN_NONE;
1.113 schwarze 499: if (*p == '"')
1.109 schwarze 500: p++;
1.113 schwarze 501: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 502: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 503:
1.147 schwarze 504: if (ntok == TOKEN_NONE) {
505: dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.109 schwarze 506: mdoc_macros[tok].flags & MDOC_JOIN);
1.158 schwarze 507: return 0;
1.109 schwarze 508: } else {
509: if (mdoc_macros[tok].fp == in_line_eoln)
510: rew_elem(mdoc, tok);
511: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.147 schwarze 512: if (tok == TOKEN_NONE)
1.109 schwarze 513: append_delims(mdoc, line, pos, buf);
1.158 schwarze 514: return 1;
1.109 schwarze 515: }
516: }
517:
518: /*
1.88 schwarze 519: * Close out block partial/full explicit.
1.1 kristaps 520: */
1.107 schwarze 521: static void
1.1 kristaps 522: blk_exp_close(MACRO_PROT_ARGS)
523: {
1.141 schwarze 524: struct roff_node *body; /* Our own body. */
525: struct roff_node *endbody; /* Our own end marker. */
526: struct roff_node *itblk; /* An It block starting later. */
527: struct roff_node *later; /* A sub-block starting later. */
528: struct roff_node *n; /* Search back to our block. */
1.144 schwarze 529: struct roff_node *target; /* For find_pending(). */
1.47 schwarze 530:
1.144 schwarze 531: int j, lastarg, maxargs, nl, pending;
1.36 schwarze 532: enum margserr ac;
1.141 schwarze 533: int atok, ntok;
1.1 kristaps 534: char *p;
535:
1.76 schwarze 536: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 537:
1.1 kristaps 538: switch (tok) {
1.88 schwarze 539: case MDOC_Ec:
1.1 kristaps 540: maxargs = 1;
541: break;
1.88 schwarze 542: case MDOC_Ek:
1.82 schwarze 543: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 544: /* FALLTHROUGH */
1.1 kristaps 545: default:
546: maxargs = 0;
547: break;
548: }
549:
1.47 schwarze 550: /*
551: * Search backwards for beginnings of blocks,
552: * both of our own and of pending sub-blocks.
553: */
1.107 schwarze 554:
1.47 schwarze 555: atok = rew_alt(tok);
1.127 schwarze 556: body = endbody = itblk = later = NULL;
1.76 schwarze 557: for (n = mdoc->last; n; n = n->parent) {
1.139 schwarze 558: if (n->flags & MDOC_ENDED) {
559: if ( ! (n->flags & MDOC_VALID))
560: n->flags |= MDOC_BROKEN;
1.47 schwarze 561: continue;
1.139 schwarze 562: }
1.47 schwarze 563:
564: /* Remember the start of our own body. */
1.107 schwarze 565:
1.140 schwarze 566: if (n->type == ROFFT_BODY && atok == n->tok) {
1.131 schwarze 567: if (n->end == ENDBODY_NOT)
1.47 schwarze 568: body = n;
569: continue;
570: }
571:
1.140 schwarze 572: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.47 schwarze 573: continue;
1.116 schwarze 574:
575: if (n->tok == MDOC_It) {
1.127 schwarze 576: itblk = n;
1.116 schwarze 577: continue;
578: }
579:
1.47 schwarze 580: if (atok == n->tok) {
581: assert(body);
582:
583: /*
584: * Found the start of our own block.
585: * When there is no pending sub block,
586: * just proceed to closing out.
587: */
1.107 schwarze 588:
1.116 schwarze 589: if (later == NULL ||
1.127 schwarze 590: (tok == MDOC_El && itblk == NULL))
1.47 schwarze 591: break;
592:
1.88 schwarze 593: /*
1.123 schwarze 594: * When there is a pending sub block, postpone
595: * closing out the current block until the
596: * rew_pending() closing out the sub-block.
1.47 schwarze 597: * Mark the place where the formatting - but not
598: * the scope - of the current block ends.
599: */
1.107 schwarze 600:
1.139 schwarze 601: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
602: line, ppos, "%s breaks %s",
603: mdoc_macronames[atok],
604: mdoc_macronames[later->tok]);
605:
1.122 schwarze 606: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.106 schwarze 607: atok, body, ENDBODY_SPACE);
1.107 schwarze 608:
1.139 schwarze 609: if (tok == MDOC_El)
610: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
611:
1.107 schwarze 612: /*
613: * If a block closing macro taking arguments
614: * breaks another block, put the arguments
1.122 schwarze 615: * into the end marker.
1.107 schwarze 616: */
617:
1.122 schwarze 618: if (maxargs)
1.145 schwarze 619: mdoc->next = ROFF_NEXT_CHILD;
1.47 schwarze 620: break;
1.138 schwarze 621: }
622:
623: /* Explicit blocks close out description lines. */
624:
625: if (n->tok == MDOC_Nd) {
626: rew_last(mdoc, n);
627: continue;
1.47 schwarze 628: }
629:
1.139 schwarze 630: /* Breaking an open sub block. */
1.107 schwarze 631:
1.139 schwarze 632: n->flags |= MDOC_BROKEN;
633: if (later == NULL)
1.47 schwarze 634: later = n;
635: }
1.122 schwarze 636:
637: if (body == NULL) {
638: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
639: line, ppos, mdoc_macronames[tok]);
1.152 schwarze 640: if (later != NULL)
641: later->flags &= ~MDOC_BROKEN;
1.122 schwarze 642: if (maxargs && endbody == NULL) {
643: /*
644: * Stray .Ec without previous .Eo:
645: * Break the output line, keep the arguments.
646: */
1.149 schwarze 647: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.122 schwarze 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: }
1.47 schwarze 655:
1.106 schwarze 656: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
657: if (buf[*pos] != '\0')
1.93 schwarze 658: mandoc_vmsg(MANDOCERR_ARG_SKIP,
659: mdoc->parse, line, ppos,
660: "%s %s", mdoc_macronames[tok],
661: buf + *pos);
1.127 schwarze 662: if (endbody == NULL && n != NULL)
1.123 schwarze 663: rew_pending(mdoc, n);
1.107 schwarze 664: return;
1.1 kristaps 665: }
666:
1.122 schwarze 667: if (endbody != NULL)
668: n = endbody;
1.153 schwarze 669:
670: ntok = TOKEN_NONE;
1.104 schwarze 671: for (j = 0; ; j++) {
1.1 kristaps 672: lastarg = *pos;
673:
1.142 schwarze 674: if (j == maxargs && n != NULL)
675: rew_last(mdoc, n);
1.1 kristaps 676:
1.76 schwarze 677: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 678: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 679: break;
680:
1.147 schwarze 681: ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.111 schwarze 682: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 683:
1.147 schwarze 684: if (ntok == TOKEN_NONE) {
1.106 schwarze 685: dword(mdoc, line, lastarg, p, DELIM_MAX,
686: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 687: continue;
688: }
1.1 kristaps 689:
1.142 schwarze 690: if (n != NULL)
691: rew_last(mdoc, n);
1.79 schwarze 692: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 693: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 694: break;
1.1 kristaps 695: }
696:
1.144 schwarze 697: if (n != NULL) {
1.153 schwarze 698: if (ntok != TOKEN_NONE && n->flags & MDOC_BROKEN) {
1.144 schwarze 699: target = n;
700: do
701: target = target->parent;
702: while ( ! (target->flags & MDOC_ENDED));
703: pending = find_pending(mdoc, ntok, line, ppos,
704: target);
705: } else
706: pending = 0;
707: if ( ! pending)
708: rew_pending(mdoc, n);
709: }
1.106 schwarze 710: if (nl)
711: append_delims(mdoc, line, pos, buf);
1.1 kristaps 712: }
713:
1.107 schwarze 714: static void
1.1 kristaps 715: in_line(MACRO_PROT_ARGS)
716: {
1.100 schwarze 717: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.141 schwarze 718: int ntok;
1.36 schwarze 719: enum margserr ac;
1.40 schwarze 720: enum mdelim d;
1.36 schwarze 721: struct mdoc_arg *arg;
722: char *p;
1.1 kristaps 723:
1.76 schwarze 724: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 725:
1.1 kristaps 726: /*
727: * Whether we allow ignored elements (those without content,
728: * usually because of reserved words) to squeak by.
729: */
1.32 schwarze 730:
1.1 kristaps 731: switch (tok) {
1.88 schwarze 732: case MDOC_An:
733: case MDOC_Ar:
734: case MDOC_Fl:
735: case MDOC_Mt:
736: case MDOC_Nm:
737: case MDOC_Pa:
1.1 kristaps 738: nc = 1;
739: break;
740: default:
741: nc = 0;
742: break;
743: }
744:
1.108 schwarze 745: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 746:
1.100 schwarze 747: d = DELIM_NONE;
748: firstarg = 1;
1.98 schwarze 749: mayopen = 1;
1.45 schwarze 750: for (cnt = scope = 0;; ) {
1.1 kristaps 751: la = *pos;
1.76 schwarze 752: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 753:
1.100 schwarze 754: /*
755: * At the end of a macro line,
756: * opening delimiters do not suppress spacing.
757: */
758:
759: if (ac == ARGS_EOLN) {
760: if (d == DELIM_OPEN)
761: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 762: break;
1.100 schwarze 763: }
764:
765: /*
766: * The rest of the macro line is only punctuation,
767: * to be handled by append_delims().
768: * If there were no other arguments,
769: * do not allow the first one to suppress spacing,
770: * even if it turns out to be a closing one.
771: */
772:
773: if (ac == ARGS_PUNCT) {
1.132 schwarze 774: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.100 schwarze 775: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 776: break;
1.100 schwarze 777: }
1.1 kristaps 778:
1.101 schwarze 779: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.147 schwarze 780: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1 kristaps 781:
1.88 schwarze 782: /*
1.1 kristaps 783: * In this case, we've located a submacro and must
784: * execute it. Close out scope, if open. If no
785: * elements have been generated, either create one (nc)
786: * or raise a warning.
787: */
788:
1.147 schwarze 789: if (ntok != TOKEN_NONE) {
1.105 schwarze 790: if (scope)
791: rew_elem(mdoc, tok);
1.106 schwarze 792: if (nc && ! cnt) {
793: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 794: rew_last(mdoc, mdoc->last);
1.106 schwarze 795: } else if ( ! nc && ! cnt) {
1.1 kristaps 796: mdoc_argv_free(arg);
1.92 schwarze 797: mandoc_msg(MANDOCERR_MACRO_EMPTY,
798: mdoc->parse, line, ppos,
799: mdoc_macronames[tok]);
1.1 kristaps 800: }
1.107 schwarze 801: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 802: if (nl)
803: append_delims(mdoc, line, pos, buf);
1.107 schwarze 804: return;
1.88 schwarze 805: }
1.1 kristaps 806:
1.88 schwarze 807: /*
1.1 kristaps 808: * Non-quote-enclosed punctuation. Set up our scope, if
809: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 810: * the word.
1.1 kristaps 811: */
812:
1.106 schwarze 813: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 814:
1.45 schwarze 815: if (DELIM_NONE != d) {
816: /*
817: * If we encounter closing punctuation, no word
1.100 schwarze 818: * has been emitted, no scope is open, and we're
1.45 schwarze 819: * allowed to have an empty element, then start
1.98 schwarze 820: * a new scope.
1.45 schwarze 821: */
1.98 schwarze 822: if ((d == DELIM_CLOSE ||
823: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 824: !cnt && !scope && nc && mayopen) {
1.106 schwarze 825: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 826: scope = 1;
1.98 schwarze 827: cnt++;
1.106 schwarze 828: if (tok == MDOC_Nm)
1.98 schwarze 829: mayopen = 0;
1.45 schwarze 830: }
831: /*
832: * Close out our scope, if one is open, before
833: * any punctuation.
834: */
1.105 schwarze 835: if (scope)
836: rew_elem(mdoc, tok);
1.45 schwarze 837: scope = 0;
1.101 schwarze 838: if (tok == MDOC_Fn)
839: mayopen = 0;
1.98 schwarze 840: } else if (mayopen && !scope) {
1.106 schwarze 841: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 842: scope = 1;
1.98 schwarze 843: cnt++;
1.1 kristaps 844: }
1.66 schwarze 845:
1.106 schwarze 846: dword(mdoc, line, la, p, d,
847: MDOC_JOIN & mdoc_macros[tok].flags);
1.27 schwarze 848:
849: /*
1.100 schwarze 850: * If the first argument is a closing delimiter,
851: * do not suppress spacing before it.
852: */
853:
854: if (firstarg && d == DELIM_CLOSE && !nc)
855: mdoc->last->flags &= ~MDOC_DELIMC;
856: firstarg = 0;
857:
858: /*
1.27 schwarze 859: * `Fl' macros have their scope re-opened with each new
860: * word so that the `-' can be added to each one without
861: * having to parse out spaces.
862: */
1.106 schwarze 863: if (scope && tok == MDOC_Fl) {
1.105 schwarze 864: rew_elem(mdoc, tok);
1.45 schwarze 865: scope = 0;
1.27 schwarze 866: }
1.1 kristaps 867: }
868:
1.105 schwarze 869: if (scope)
870: rew_elem(mdoc, tok);
1.1 kristaps 871:
872: /*
873: * If no elements have been collected and we're allowed to have
874: * empties (nc), open a scope and close it out. Otherwise,
875: * raise a warning.
876: */
1.32 schwarze 877:
1.106 schwarze 878: if ( ! cnt) {
879: if (nc) {
880: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
881: rew_last(mdoc, mdoc->last);
882: } else {
883: mdoc_argv_free(arg);
884: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
885: line, ppos, mdoc_macronames[tok]);
886: }
1.1 kristaps 887: }
1.106 schwarze 888: if (nl)
889: append_delims(mdoc, line, pos, buf);
1.1 kristaps 890: }
891:
1.107 schwarze 892: static void
1.1 kristaps 893: blk_full(MACRO_PROT_ARGS)
894: {
1.109 schwarze 895: int la, nl, parsed;
1.1 kristaps 896: struct mdoc_arg *arg;
1.141 schwarze 897: struct roff_node *blk; /* Our own or a broken block. */
898: struct roff_node *head; /* Our own head. */
899: struct roff_node *body; /* Our own body. */
900: struct roff_node *n;
1.37 schwarze 901: enum margserr ac, lac;
1.1 kristaps 902: char *p;
903:
1.76 schwarze 904: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 905:
1.133 schwarze 906: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
907: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
908: line, ppos, mdoc_macronames[tok]);
909: return;
910: }
911:
1.127 schwarze 912: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
913:
914: /* Here, tok is one of Sh Ss Nm Nd It. */
915:
916: blk = NULL;
917: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 918: if (n->flags & MDOC_ENDED) {
919: if ( ! (n->flags & MDOC_VALID))
920: n->flags |= MDOC_BROKEN;
921: continue;
922: }
1.140 schwarze 923: if (n->type != ROFFT_BLOCK)
1.127 schwarze 924: continue;
1.139 schwarze 925:
1.127 schwarze 926: if (tok == MDOC_It && n->tok == MDOC_Bl) {
927: if (blk != NULL) {
928: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
929: mdoc->parse, line, ppos,
930: "It breaks %s",
931: mdoc_macronames[blk->tok]);
932: rew_pending(mdoc, blk);
933: }
934: break;
935: }
936:
937: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
938: switch (tok) {
939: case MDOC_Sh:
940: case MDOC_Ss:
941: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
942: mdoc->parse, line, ppos,
943: "%s breaks %s",
944: mdoc_macronames[tok],
945: mdoc_macronames[n->tok]);
946: rew_pending(mdoc, n);
1.136 schwarze 947: n = mdoc->last;
1.127 schwarze 948: continue;
949: case MDOC_It:
950: /* Delay in case it's astray. */
951: blk = n;
952: continue;
953: default:
954: break;
955: }
956: break;
957: }
958:
959: /* Here, n is one of Sh Ss Nm Nd It. */
1.95 schwarze 960:
1.127 schwarze 961: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
962: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
963: (tok != MDOC_It && n->tok == MDOC_It)))))
1.95 schwarze 964: break;
1.127 schwarze 965:
966: /* Item breaking an explicit block. */
967:
968: if (blk != NULL) {
969: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
970: mdoc->parse, line, ppos,
971: "It breaks %s",
972: mdoc_macronames[blk->tok]);
973: rew_pending(mdoc, blk);
1.128 schwarze 974: blk = NULL;
1.127 schwarze 975: }
976:
977: /* Close out prior implicit scopes. */
978:
979: rew_last(mdoc, n);
980: }
981:
982: /* Skip items outside lists. */
983:
984: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.95 schwarze 985: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
986: line, ppos, "It %s", buf + *pos);
1.149 schwarze 987: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.105 schwarze 988: rew_elem(mdoc, MDOC_br);
1.107 schwarze 989: return;
1.95 schwarze 990: }
1.1 kristaps 991: }
992:
1.32 schwarze 993: /*
1.68 schwarze 994: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 995: * macro openings. Implicit ones first close out prior scope
996: * (seen above). Delay opening the head until necessary to
997: * allow leading punctuation to print. Special consideration
998: * for `It -column', which has phrase-part syntax instead of
999: * regular child nodes.
1000: */
1001:
1.108 schwarze 1002: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.121 schwarze 1003: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1004: head = body = NULL;
1.1 kristaps 1005:
1.32 schwarze 1006: /*
1.73 schwarze 1007: * Exception: Heads of `It' macros in `-diag' lists are not
1008: * parsed, even though `It' macros in general are parsed.
1009: */
1.107 schwarze 1010:
1.109 schwarze 1011: parsed = tok != MDOC_It ||
1012: mdoc->last->parent->tok != MDOC_Bl ||
1013: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1014:
1015: /*
1.32 schwarze 1016: * The `Nd' macro has all arguments in its body: it's a hybrid
1017: * of block partial-explicit and full-implicit. Stupid.
1018: */
1.12 schwarze 1019:
1.106 schwarze 1020: if (tok == MDOC_Nd) {
1.146 schwarze 1021: head = roff_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 1022: rew_last(mdoc, head);
1.146 schwarze 1023: body = roff_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1024: }
1025:
1.106 schwarze 1026: if (tok == MDOC_Bk)
1.80 schwarze 1027: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1028:
1.161 schwarze 1029: ac = ARGS_EOLN;
1.106 schwarze 1030: for (;;) {
1.161 schwarze 1031:
1032: /*
1033: * If we are right after a tab character,
1034: * do not parse the first word for macros.
1035: */
1036:
1037: if (mdoc->flags & MDOC_PHRASEQN) {
1038: mdoc->flags &= ~MDOC_PHRASEQN;
1039: mdoc->flags |= MDOC_PHRASEQF;
1040: }
1041:
1.32 schwarze 1042: la = *pos;
1.106 schwarze 1043: lac = ac;
1.76 schwarze 1044: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1045: if (ac == ARGS_EOLN) {
1.161 schwarze 1046: if (lac != ARGS_PHRASE ||
1047: ! (mdoc->flags & MDOC_PHRASEQF))
1.46 schwarze 1048: break;
1.161 schwarze 1049:
1.46 schwarze 1050: /*
1.161 schwarze 1051: * This line ends in a tab; start the next
1052: * column now, with a leading blank.
1.46 schwarze 1053: */
1.161 schwarze 1054:
1.123 schwarze 1055: if (body != NULL)
1056: rew_last(mdoc, body);
1.146 schwarze 1057: body = roff_body_alloc(mdoc, line, ppos, tok);
1.161 schwarze 1058: roff_word_alloc(mdoc, line, ppos, "\\&");
1.1 kristaps 1059: break;
1.41 schwarze 1060: }
1.161 schwarze 1061:
1.130 schwarze 1062: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1063: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1064: mdoc->parse, line, la, "%s ... %s",
1065: mdoc_macronames[tok], buf + la);
1066: break;
1067: }
1.129 schwarze 1068: if (tok == MDOC_Rs) {
1069: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1070: line, la, "Rs %s", buf + la);
1071: break;
1072: }
1073: if (ac == ARGS_PUNCT)
1074: break;
1.41 schwarze 1075:
1.88 schwarze 1076: /*
1.46 schwarze 1077: * Emit leading punctuation (i.e., punctuation before
1.140 schwarze 1078: * the ROFFT_HEAD) for non-phrase types.
1.46 schwarze 1079: */
1.32 schwarze 1080:
1.106 schwarze 1081: if (head == NULL &&
1082: ac != ARGS_PHRASE &&
1083: ac != ARGS_QWORD &&
1084: mdoc_isdelim(p) == DELIM_OPEN) {
1085: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1086: continue;
1087: }
1088:
1.46 schwarze 1089: /* Open a head if one hasn't been opened. */
1.32 schwarze 1090:
1.106 schwarze 1091: if (head == NULL)
1.146 schwarze 1092: head = roff_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1093:
1.161 schwarze 1094: if (ac == ARGS_PHRASE) {
1.107 schwarze 1095:
1.46 schwarze 1096: /*
1097: * If we haven't opened a body yet, rewind the
1098: * head; if we have, rewind that instead.
1099: */
1100:
1.123 schwarze 1101: rew_last(mdoc, body == NULL ? head : body);
1.146 schwarze 1102: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1103:
1.161 schwarze 1104: /* Process to the tab or to the end of the line. */
1.46 schwarze 1105:
1.161 schwarze 1106: mdoc->flags |= MDOC_PHRASE;
1.147 schwarze 1107: parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.161 schwarze 1108: mdoc->flags &= ~MDOC_PHRASE;
1.160 schwarze 1109:
1110: /* There may have been `Ta' macros. */
1111:
1112: while (body->next != NULL)
1113: body = body->next;
1.1 kristaps 1114: continue;
1115: }
1116:
1.109 schwarze 1117: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1118: break;
1.32 schwarze 1119: }
1.1 kristaps 1120:
1.121 schwarze 1121: if (blk->flags & MDOC_VALID)
1122: return;
1.106 schwarze 1123: if (head == NULL)
1.146 schwarze 1124: head = roff_head_alloc(mdoc, line, ppos, tok);
1.130 schwarze 1125: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.106 schwarze 1126: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1127: if (body != NULL)
1.46 schwarze 1128: goto out;
1.143 schwarze 1129: if (find_pending(mdoc, tok, line, ppos, head))
1.139 schwarze 1130: return;
1.54 schwarze 1131:
1.32 schwarze 1132: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1133:
1.123 schwarze 1134: rew_last(mdoc, head);
1.146 schwarze 1135: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1136: out:
1.106 schwarze 1137: if (mdoc->flags & MDOC_FREECOL) {
1.123 schwarze 1138: rew_last(mdoc, body);
1139: rew_last(mdoc, blk);
1.106 schwarze 1140: mdoc->flags &= ~MDOC_FREECOL;
1141: }
1.1 kristaps 1142: }
1143:
1.107 schwarze 1144: static void
1.1 kristaps 1145: blk_part_imp(MACRO_PROT_ARGS)
1146: {
1.43 schwarze 1147: int la, nl;
1.36 schwarze 1148: enum margserr ac;
1.1 kristaps 1149: char *p;
1.141 schwarze 1150: struct roff_node *blk; /* saved block context */
1151: struct roff_node *body; /* saved body context */
1152: struct roff_node *n;
1.1 kristaps 1153:
1.76 schwarze 1154: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1155:
1.32 schwarze 1156: /*
1157: * A macro that spans to the end of the line. This is generally
1158: * (but not necessarily) called as the first macro. The block
1159: * has a head as the immediate child, which is always empty,
1160: * followed by zero or more opening punctuation nodes, then the
1161: * body (which may be empty, depending on the macro), then zero
1162: * or more closing punctuation nodes.
1163: */
1.22 schwarze 1164:
1.106 schwarze 1165: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.146 schwarze 1166: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1167:
1.32 schwarze 1168: /*
1169: * Open the body scope "on-demand", that is, after we've
1170: * processed all our the leading delimiters (open parenthesis,
1171: * etc.).
1172: */
1.1 kristaps 1173:
1.32 schwarze 1174: for (body = NULL; ; ) {
1.22 schwarze 1175: la = *pos;
1.76 schwarze 1176: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1177: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1178: break;
1179:
1.106 schwarze 1180: if (body == NULL && ac != ARGS_QWORD &&
1181: mdoc_isdelim(p) == DELIM_OPEN) {
1182: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1183: continue;
1.80 schwarze 1184: }
1.1 kristaps 1185:
1.106 schwarze 1186: if (body == NULL)
1.146 schwarze 1187: body = roff_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1188:
1.109 schwarze 1189: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1190: break;
1.32 schwarze 1191: }
1.106 schwarze 1192: if (body == NULL)
1.146 schwarze 1193: body = roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1194:
1.143 schwarze 1195: if (find_pending(mdoc, tok, line, ppos, body))
1.139 schwarze 1196: return;
1197:
1.120 schwarze 1198: rew_last(mdoc, body);
1.106 schwarze 1199: if (nl)
1200: append_delims(mdoc, line, pos, buf);
1.122 schwarze 1201: rew_pending(mdoc, blk);
1.74 schwarze 1202:
1203: /* Move trailing .Ns out of scope. */
1204:
1205: for (n = body->child; n && n->next; n = n->next)
1206: /* Do nothing. */ ;
1.106 schwarze 1207: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1208: mdoc_node_relink(mdoc, n);
1.1 kristaps 1209: }
1210:
1.107 schwarze 1211: static void
1.1 kristaps 1212: blk_part_exp(MACRO_PROT_ARGS)
1213: {
1.37 schwarze 1214: int la, nl;
1.36 schwarze 1215: enum margserr ac;
1.141 schwarze 1216: struct roff_node *head; /* keep track of head */
1.1 kristaps 1217: char *p;
1218:
1.76 schwarze 1219: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1220:
1.32 schwarze 1221: /*
1222: * The opening of an explicit macro having zero or more leading
1223: * punctuation nodes; a head with optional single element (the
1224: * case of `Eo'); and a body that may be empty.
1225: */
1.22 schwarze 1226:
1.149 schwarze 1227: roff_block_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1228: head = NULL;
1229: for (;;) {
1.22 schwarze 1230: la = *pos;
1.76 schwarze 1231: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1232: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1233: break;
1234:
1.32 schwarze 1235: /* Flush out leading punctuation. */
1236:
1.106 schwarze 1237: if (head == NULL && ac != ARGS_QWORD &&
1238: mdoc_isdelim(p) == DELIM_OPEN) {
1239: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1240: continue;
1.80 schwarze 1241: }
1.32 schwarze 1242:
1.106 schwarze 1243: if (head == NULL) {
1.146 schwarze 1244: head = roff_head_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1245: if (tok == MDOC_Eo) /* Not parsed. */
1.106 schwarze 1246: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.119 schwarze 1247: rew_last(mdoc, head);
1.146 schwarze 1248: roff_body_alloc(mdoc, line, ppos, tok);
1.106 schwarze 1249: if (tok == MDOC_Eo)
1.32 schwarze 1250: continue;
1251: }
1252:
1.109 schwarze 1253: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1254: break;
1.1 kristaps 1255: }
1256:
1.32 schwarze 1257: /* Clean-up to leave in a consistent state. */
1258:
1.119 schwarze 1259: if (head == NULL) {
1.146 schwarze 1260: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1261: roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1262: }
1.106 schwarze 1263: if (nl)
1264: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1265: }
1266:
1.107 schwarze 1267: static void
1.1 kristaps 1268: in_line_argn(MACRO_PROT_ARGS)
1269: {
1.36 schwarze 1270: struct mdoc_arg *arg;
1271: char *p;
1.137 schwarze 1272: enum margserr ac;
1.141 schwarze 1273: int ntok;
1.137 schwarze 1274: int state; /* arg#; -1: not yet open; -2: closed */
1275: int la, maxargs, nl;
1.1 kristaps 1276:
1.112 schwarze 1277: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1278:
1.32 schwarze 1279: /*
1280: * A line macro that has a fixed number of arguments (maxargs).
1281: * Only open the scope once the first non-leading-punctuation is
1282: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1283: * keep it open until the maximum number of arguments are
1284: * exhausted.
1285: */
1.1 kristaps 1286:
1287: switch (tok) {
1.88 schwarze 1288: case MDOC_Ap:
1289: case MDOC_Ns:
1290: case MDOC_Ux:
1.1 kristaps 1291: maxargs = 0;
1292: break;
1.88 schwarze 1293: case MDOC_Bx:
1.89 schwarze 1294: case MDOC_Es:
1.88 schwarze 1295: case MDOC_Xr:
1.28 schwarze 1296: maxargs = 2;
1297: break;
1.1 kristaps 1298: default:
1299: maxargs = 1;
1300: break;
1301: }
1302:
1.108 schwarze 1303: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1304:
1.137 schwarze 1305: state = -1;
1.112 schwarze 1306: p = NULL;
1307: for (;;) {
1.22 schwarze 1308: la = *pos;
1.76 schwarze 1309: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.137 schwarze 1310:
1311: if (ac == ARGS_WORD && state == -1 &&
1312: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1313: mdoc_isdelim(p) == DELIM_OPEN) {
1314: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1315: continue;
1316: }
1317:
1318: if (state == -1 && tok != MDOC_In &&
1319: tok != MDOC_St && tok != MDOC_Xr) {
1320: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1321: state = 0;
1322: }
1323:
1.112 schwarze 1324: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.137 schwarze 1325: if (abs(state) < 2 && tok == MDOC_Pf)
1.112 schwarze 1326: mandoc_vmsg(MANDOCERR_PF_SKIP,
1327: mdoc->parse, line, ppos, "Pf %s",
1328: p == NULL ? "at eol" : p);
1.1 kristaps 1329: break;
1.112 schwarze 1330: }
1.1 kristaps 1331:
1.137 schwarze 1332: if (state == maxargs) {
1.105 schwarze 1333: rew_elem(mdoc, tok);
1.137 schwarze 1334: state = -2;
1.32 schwarze 1335: }
1336:
1.137 schwarze 1337: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.147 schwarze 1338: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1339:
1.147 schwarze 1340: if (ntok != TOKEN_NONE) {
1.137 schwarze 1341: if (state >= 0) {
1.105 schwarze 1342: rew_elem(mdoc, tok);
1.137 schwarze 1343: state = -2;
1344: }
1.107 schwarze 1345: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1346: break;
1347: }
1348:
1.137 schwarze 1349: if (ac == ARGS_QWORD ||
1350: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1351: mdoc_isdelim(p) == DELIM_NONE) {
1352: if (state == -1) {
1353: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1354: state = 1;
1355: } else if (state >= 0)
1356: state++;
1357: } else if (state >= 0) {
1.105 schwarze 1358: rew_elem(mdoc, tok);
1.137 schwarze 1359: state = -2;
1.28 schwarze 1360: }
1361:
1.106 schwarze 1362: dword(mdoc, line, la, p, DELIM_MAX,
1363: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1364: }
1365:
1.137 schwarze 1366: if (state == -1) {
1367: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1368: line, ppos, mdoc_macronames[tok]);
1369: return;
1.112 schwarze 1370: }
1.137 schwarze 1371:
1372: if (state == 0 && tok == MDOC_Pf)
1373: append_delims(mdoc, line, pos, buf);
1374: if (state >= 0)
1.105 schwarze 1375: rew_elem(mdoc, tok);
1.106 schwarze 1376: if (nl)
1377: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1378: }
1379:
1.107 schwarze 1380: static void
1.1 kristaps 1381: in_line_eoln(MACRO_PROT_ARGS)
1382: {
1.141 schwarze 1383: struct roff_node *n;
1.126 schwarze 1384: struct mdoc_arg *arg;
1.1 kristaps 1385:
1.126 schwarze 1386: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1387: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1388: n = mdoc->last;
1.145 schwarze 1389: if (mdoc->next == ROFF_NEXT_SIBLING)
1.126 schwarze 1390: n = n->parent;
1391: if (n->tok == MDOC_Nm)
1.154 schwarze 1392: rew_last(mdoc, n->parent);
1.134 schwarze 1393: }
1394:
1.135 schwarze 1395: if (buf[*pos] == '\0' &&
1396: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.134 schwarze 1397: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.135 schwarze 1398: line, ppos, mdoc_macronames[tok]);
1.134 schwarze 1399: return;
1.126 schwarze 1400: }
1.53 schwarze 1401:
1.108 schwarze 1402: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1403: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1404: if (parse_rest(mdoc, tok, line, pos, buf))
1405: return;
1406: rew_elem(mdoc, tok);
1407: }
1408:
1409: /*
1410: * The simplest argument parser available: Parse the remaining
1411: * words until the end of the phrase or line and return 0
1412: * or until the next macro, call that macro, and return 1.
1413: */
1414: static int
1.145 schwarze 1415: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.110 schwarze 1416: {
1417: int la;
1.1 kristaps 1418:
1419: for (;;) {
1420: la = *pos;
1.109 schwarze 1421: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.158 schwarze 1422: return 0;
1.109 schwarze 1423: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.158 schwarze 1424: return 1;
1.1 kristaps 1425: }
1.28 schwarze 1426: }
1427:
1.107 schwarze 1428: static void
1.28 schwarze 1429: ctx_synopsis(MACRO_PROT_ARGS)
1430: {
1.37 schwarze 1431:
1.107 schwarze 1432: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1433: in_line(mdoc, tok, line, ppos, pos, buf);
1434: else if (tok == MDOC_Nm)
1435: blk_full(mdoc, tok, line, ppos, pos, buf);
1436: else {
1437: assert(tok == MDOC_Vt);
1438: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1439: }
1.1 kristaps 1440: }
1441:
1.17 schwarze 1442: /*
1443: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1444: * They're unusual because they're basically free-form text until a
1445: * macro is encountered.
1446: */
1.107 schwarze 1447: static void
1.46 schwarze 1448: phrase_ta(MACRO_PROT_ARGS)
1449: {
1.141 schwarze 1450: struct roff_node *body, *n;
1.46 schwarze 1451:
1.78 schwarze 1452: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1453:
1.123 schwarze 1454: body = NULL;
1455: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 1456: if (n->flags & MDOC_ENDED)
1.123 schwarze 1457: continue;
1.140 schwarze 1458: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.123 schwarze 1459: body = n;
1460: if (n->tok == MDOC_Bl)
1461: break;
1462: }
1463:
1.107 schwarze 1464: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1465: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1466: line, ppos, "Ta");
1.107 schwarze 1467: return;
1.78 schwarze 1468: }
1.46 schwarze 1469:
1.78 schwarze 1470: /* Advance to the next column. */
1.106 schwarze 1471:
1.123 schwarze 1472: rew_last(mdoc, body);
1.146 schwarze 1473: roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.147 schwarze 1474: parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.46 schwarze 1475: }
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