Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.150
1.150 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.149 2015/04/19 14:57:16 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",
1.147 schwarze 233: * or as a line macro if from == TOKEN_NONE.
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:
1.147 schwarze 240: if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
1.109 schwarze 241: res = mdoc_hash_find(p);
1.147 schwarze 242: if (res != TOKEN_NONE) {
1.111 schwarze 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: }
1.147 schwarze 250: return(TOKEN_NONE);
1.1 kristaps 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:
1.150 ! schwarze 292: if (mdoc->last == n) {
! 293: switch (n->type) {
! 294: case ROFFT_HEAD:
! 295: roff_body_alloc(mdoc, n->line, n->pos,
! 296: n->tok);
! 297: return;
! 298: case ROFFT_BLOCK:
! 299: break;
! 300: default:
! 301: return;
! 302: }
! 303: if ( ! (n->flags & MDOC_BROKEN))
! 304: return;
! 305: } else
! 306: n = mdoc->last;
1.122 schwarze 307:
1.139 schwarze 308: for (;;) {
309: if ((n = n->parent) == NULL)
310: return;
311:
1.140 schwarze 312: if (n->type == ROFFT_BLOCK ||
313: n->type == ROFFT_HEAD) {
1.139 schwarze 314: if (n->flags & MDOC_ENDED)
315: break;
316: else
317: return;
318: }
319: }
1.122 schwarze 320: }
321: }
322:
323: /*
1.48 schwarze 324: * For a block closing macro, return the corresponding opening one.
325: * Otherwise, return the macro itself.
1.22 schwarze 326: */
1.141 schwarze 327: static int
328: rew_alt(int tok)
1.1 kristaps 329: {
330: switch (tok) {
1.88 schwarze 331: case MDOC_Ac:
1.1 kristaps 332: return(MDOC_Ao);
1.88 schwarze 333: case MDOC_Bc:
1.1 kristaps 334: return(MDOC_Bo);
1.88 schwarze 335: case MDOC_Brc:
1.1 kristaps 336: return(MDOC_Bro);
1.88 schwarze 337: case MDOC_Dc:
1.1 kristaps 338: return(MDOC_Do);
1.88 schwarze 339: case MDOC_Ec:
1.1 kristaps 340: return(MDOC_Eo);
1.88 schwarze 341: case MDOC_Ed:
1.1 kristaps 342: return(MDOC_Bd);
1.88 schwarze 343: case MDOC_Ef:
1.1 kristaps 344: return(MDOC_Bf);
1.88 schwarze 345: case MDOC_Ek:
1.1 kristaps 346: return(MDOC_Bk);
1.88 schwarze 347: case MDOC_El:
1.1 kristaps 348: return(MDOC_Bl);
1.88 schwarze 349: case MDOC_Fc:
1.1 kristaps 350: return(MDOC_Fo);
1.88 schwarze 351: case MDOC_Oc:
1.1 kristaps 352: return(MDOC_Oo);
1.88 schwarze 353: case MDOC_Pc:
1.1 kristaps 354: return(MDOC_Po);
1.88 schwarze 355: case MDOC_Qc:
1.1 kristaps 356: return(MDOC_Qo);
1.88 schwarze 357: case MDOC_Re:
1.1 kristaps 358: return(MDOC_Rs);
1.88 schwarze 359: case MDOC_Sc:
1.1 kristaps 360: return(MDOC_So);
1.88 schwarze 361: case MDOC_Xc:
1.1 kristaps 362: return(MDOC_Xo);
363: default:
1.48 schwarze 364: return(tok);
1.1 kristaps 365: }
366: /* NOTREACHED */
367: }
368:
1.105 schwarze 369: static void
1.145 schwarze 370: rew_elem(struct roff_man *mdoc, int tok)
1.1 kristaps 371: {
1.141 schwarze 372: struct roff_node *n;
1.1 kristaps 373:
374: n = mdoc->last;
1.140 schwarze 375: if (n->type != ROFFT_ELEM)
1.1 kristaps 376: n = n->parent;
1.140 schwarze 377: assert(n->type == ROFFT_ELEM);
1.1 kristaps 378: assert(tok == n->tok);
1.105 schwarze 379: rew_last(mdoc, n);
1.1 kristaps 380: }
381:
1.47 schwarze 382: /*
1.143 schwarze 383: * If there is an open sub-block of the target requiring
384: * explicit close-out, postpone closing out the target until
385: * the rew_pending() call closing out the sub-block.
386: */
387: static int
1.145 schwarze 388: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.143 schwarze 389: struct roff_node *target)
390: {
391: struct roff_node *n;
392: int irc;
393:
394: irc = 0;
395: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
396: if (n->flags & MDOC_ENDED) {
397: if ( ! (n->flags & MDOC_VALID))
398: n->flags |= MDOC_BROKEN;
399: continue;
400: }
401: if (n->type == ROFFT_BLOCK &&
402: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
403: irc = 1;
404: n->flags = MDOC_BROKEN;
405: if (target->type == ROFFT_HEAD)
406: target->flags = MDOC_ENDED;
407: else if ( ! (target->flags & MDOC_ENDED)) {
408: mandoc_vmsg(MANDOCERR_BLK_NEST,
409: mdoc->parse, line, ppos,
410: "%s breaks %s", mdoc_macronames[tok],
411: mdoc_macronames[n->tok]);
412: mdoc_endbody_alloc(mdoc, line, ppos,
413: tok, target, ENDBODY_NOSPACE);
414: }
415: }
416: }
417: return(irc);
418: }
419:
420: /*
1.66 schwarze 421: * Allocate a word and check whether it's punctuation or not.
422: * Punctuation consists of those tokens found in mdoc_isdelim().
423: */
1.106 schwarze 424: static void
1.145 schwarze 425: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.80 schwarze 426: enum mdelim d, int may_append)
1.66 schwarze 427: {
1.88 schwarze 428:
1.106 schwarze 429: if (d == DELIM_MAX)
1.66 schwarze 430: d = mdoc_isdelim(p);
431:
1.80 schwarze 432: if (may_append &&
1.106 schwarze 433: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.140 schwarze 434: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.106 schwarze 435: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.148 schwarze 436: roff_word_append(mdoc, p);
1.106 schwarze 437: return;
1.80 schwarze 438: }
439:
1.148 schwarze 440: roff_word_alloc(mdoc, line, col, p);
1.66 schwarze 441:
1.71 schwarze 442: /*
1.100 schwarze 443: * If the word consists of a bare delimiter,
444: * flag the new node accordingly,
445: * unless doing so was vetoed by the invoking macro.
446: * Always clear the veto, it is only valid for one word.
1.71 schwarze 447: */
448:
1.100 schwarze 449: if (d == DELIM_OPEN)
450: mdoc->last->flags |= MDOC_DELIMO;
451: else if (d == DELIM_CLOSE &&
452: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 453: mdoc->last->parent->tok != MDOC_Fd)
1.76 schwarze 454: mdoc->last->flags |= MDOC_DELIMC;
1.100 schwarze 455: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 456: }
1.1 kristaps 457:
1.106 schwarze 458: static void
1.145 schwarze 459: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1 kristaps 460: {
1.109 schwarze 461: char *p;
1.42 schwarze 462: int la;
1.1 kristaps 463:
1.106 schwarze 464: if (buf[*pos] == '\0')
465: return;
1.1 kristaps 466:
467: for (;;) {
1.42 schwarze 468: la = *pos;
1.147 schwarze 469: if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
470: ARGS_EOLN)
1.1 kristaps 471: break;
1.80 schwarze 472: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 473:
1.42 schwarze 474: /*
475: * If we encounter end-of-sentence symbols, then trigger
476: * the double-space.
477: *
1.68 schwarze 478: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 479: * the last symbol, such that `. )' will cause the
480: * correct double-spacing. However, (1) groff isn't
481: * smart enough to do this and (2) it would require
482: * knowing which symbols break this behaviour, for
1.68 schwarze 483: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 484: */
1.106 schwarze 485:
1.84 schwarze 486: if (mandoc_eos(p, strlen(p)))
1.76 schwarze 487: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 488: }
489: }
490:
491: /*
1.109 schwarze 492: * Parse one word.
493: * If it is a macro, call it and return 1.
494: * Otherwise, allocate it and return 0.
495: */
496: static int
497: macro_or_word(MACRO_PROT_ARGS, int parsed)
498: {
499: char *p;
1.141 schwarze 500: int ntok;
1.109 schwarze 501:
502: p = buf + ppos;
1.147 schwarze 503: ntok = TOKEN_NONE;
1.113 schwarze 504: if (*p == '"')
1.109 schwarze 505: p++;
1.113 schwarze 506: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 507: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 508:
1.147 schwarze 509: if (ntok == TOKEN_NONE) {
510: dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.109 schwarze 511: mdoc_macros[tok].flags & MDOC_JOIN);
512: return(0);
513: } else {
514: if (mdoc_macros[tok].fp == in_line_eoln)
515: rew_elem(mdoc, tok);
516: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.147 schwarze 517: if (tok == TOKEN_NONE)
1.109 schwarze 518: append_delims(mdoc, line, pos, buf);
519: return(1);
520: }
521: }
522:
523: /*
1.88 schwarze 524: * Close out block partial/full explicit.
1.1 kristaps 525: */
1.107 schwarze 526: static void
1.1 kristaps 527: blk_exp_close(MACRO_PROT_ARGS)
528: {
1.141 schwarze 529: struct roff_node *body; /* Our own body. */
530: struct roff_node *endbody; /* Our own end marker. */
531: struct roff_node *itblk; /* An It block starting later. */
532: struct roff_node *later; /* A sub-block starting later. */
533: struct roff_node *n; /* Search back to our block. */
1.144 schwarze 534: struct roff_node *target; /* For find_pending(). */
1.47 schwarze 535:
1.144 schwarze 536: int j, lastarg, maxargs, nl, pending;
1.36 schwarze 537: enum margserr ac;
1.141 schwarze 538: int atok, ntok;
1.1 kristaps 539: char *p;
540:
1.76 schwarze 541: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 542:
1.1 kristaps 543: switch (tok) {
1.88 schwarze 544: case MDOC_Ec:
1.1 kristaps 545: maxargs = 1;
546: break;
1.88 schwarze 547: case MDOC_Ek:
1.82 schwarze 548: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 549: /* FALLTHROUGH */
1.1 kristaps 550: default:
551: maxargs = 0;
552: break;
553: }
554:
1.47 schwarze 555: /*
556: * Search backwards for beginnings of blocks,
557: * both of our own and of pending sub-blocks.
558: */
1.107 schwarze 559:
1.47 schwarze 560: atok = rew_alt(tok);
1.127 schwarze 561: body = endbody = itblk = later = NULL;
1.76 schwarze 562: for (n = mdoc->last; n; n = n->parent) {
1.139 schwarze 563: if (n->flags & MDOC_ENDED) {
564: if ( ! (n->flags & MDOC_VALID))
565: n->flags |= MDOC_BROKEN;
1.47 schwarze 566: continue;
1.139 schwarze 567: }
1.47 schwarze 568:
569: /* Remember the start of our own body. */
1.107 schwarze 570:
1.140 schwarze 571: if (n->type == ROFFT_BODY && atok == n->tok) {
1.131 schwarze 572: if (n->end == ENDBODY_NOT)
1.47 schwarze 573: body = n;
574: continue;
575: }
576:
1.140 schwarze 577: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.47 schwarze 578: continue;
1.116 schwarze 579:
580: if (n->tok == MDOC_It) {
1.127 schwarze 581: itblk = n;
1.116 schwarze 582: continue;
583: }
584:
1.47 schwarze 585: if (atok == n->tok) {
586: assert(body);
587:
588: /*
589: * Found the start of our own block.
590: * When there is no pending sub block,
591: * just proceed to closing out.
592: */
1.107 schwarze 593:
1.116 schwarze 594: if (later == NULL ||
1.127 schwarze 595: (tok == MDOC_El && itblk == NULL))
1.47 schwarze 596: break;
597:
1.88 schwarze 598: /*
1.123 schwarze 599: * When there is a pending sub block, postpone
600: * closing out the current block until the
601: * rew_pending() closing out the sub-block.
1.47 schwarze 602: * Mark the place where the formatting - but not
603: * the scope - of the current block ends.
604: */
1.107 schwarze 605:
1.139 schwarze 606: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
607: line, ppos, "%s breaks %s",
608: mdoc_macronames[atok],
609: mdoc_macronames[later->tok]);
610:
1.122 schwarze 611: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.106 schwarze 612: atok, body, ENDBODY_SPACE);
1.107 schwarze 613:
1.139 schwarze 614: if (tok == MDOC_El)
615: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
616:
1.107 schwarze 617: /*
618: * If a block closing macro taking arguments
619: * breaks another block, put the arguments
1.122 schwarze 620: * into the end marker.
1.107 schwarze 621: */
622:
1.122 schwarze 623: if (maxargs)
1.145 schwarze 624: mdoc->next = ROFF_NEXT_CHILD;
1.47 schwarze 625: break;
1.138 schwarze 626: }
627:
628: /* Explicit blocks close out description lines. */
629:
630: if (n->tok == MDOC_Nd) {
631: rew_last(mdoc, n);
632: continue;
1.47 schwarze 633: }
634:
1.139 schwarze 635: /* Breaking an open sub block. */
1.107 schwarze 636:
1.139 schwarze 637: n->flags |= MDOC_BROKEN;
638: if (later == NULL)
1.47 schwarze 639: later = n;
640: }
1.122 schwarze 641:
642: if (body == NULL) {
643: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
644: line, ppos, mdoc_macronames[tok]);
645: if (maxargs && endbody == NULL) {
646: /*
647: * Stray .Ec without previous .Eo:
648: * Break the output line, keep the arguments.
649: */
1.149 schwarze 650: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.122 schwarze 651: rew_elem(mdoc, MDOC_br);
652: }
653: } else if (endbody == NULL) {
654: rew_last(mdoc, body);
655: if (maxargs)
656: mdoc_tail_alloc(mdoc, line, ppos, atok);
657: }
1.47 schwarze 658:
1.106 schwarze 659: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
660: if (buf[*pos] != '\0')
1.93 schwarze 661: mandoc_vmsg(MANDOCERR_ARG_SKIP,
662: mdoc->parse, line, ppos,
663: "%s %s", mdoc_macronames[tok],
664: buf + *pos);
1.127 schwarze 665: if (endbody == NULL && n != NULL)
1.123 schwarze 666: rew_pending(mdoc, n);
1.107 schwarze 667: return;
1.1 kristaps 668: }
669:
1.122 schwarze 670: if (endbody != NULL)
671: n = endbody;
1.104 schwarze 672: for (j = 0; ; j++) {
1.1 kristaps 673: lastarg = *pos;
674:
1.142 schwarze 675: if (j == maxargs && n != NULL)
676: rew_last(mdoc, n);
1.1 kristaps 677:
1.76 schwarze 678: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 679: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 680: break;
681:
1.147 schwarze 682: ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.111 schwarze 683: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 684:
1.147 schwarze 685: if (ntok == TOKEN_NONE) {
1.106 schwarze 686: dword(mdoc, line, lastarg, p, DELIM_MAX,
687: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 688: continue;
689: }
1.1 kristaps 690:
1.142 schwarze 691: if (n != NULL)
692: rew_last(mdoc, n);
1.79 schwarze 693: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 694: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 695: break;
1.1 kristaps 696: }
697:
1.144 schwarze 698: if (n != NULL) {
699: if (n != mdoc->last && n->flags & MDOC_BROKEN) {
700: target = n;
701: do
702: target = target->parent;
703: while ( ! (target->flags & MDOC_ENDED));
704: pending = find_pending(mdoc, ntok, line, ppos,
705: target);
706: } else
707: pending = 0;
708: if ( ! pending)
709: rew_pending(mdoc, n);
710: }
1.106 schwarze 711: if (nl)
712: append_delims(mdoc, line, pos, buf);
1.1 kristaps 713: }
714:
1.107 schwarze 715: static void
1.1 kristaps 716: in_line(MACRO_PROT_ARGS)
717: {
1.100 schwarze 718: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.141 schwarze 719: int ntok;
1.36 schwarze 720: enum margserr ac;
1.40 schwarze 721: enum mdelim d;
1.36 schwarze 722: struct mdoc_arg *arg;
723: char *p;
1.1 kristaps 724:
1.76 schwarze 725: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 726:
1.1 kristaps 727: /*
728: * Whether we allow ignored elements (those without content,
729: * usually because of reserved words) to squeak by.
730: */
1.32 schwarze 731:
1.1 kristaps 732: switch (tok) {
1.88 schwarze 733: case MDOC_An:
1.19 schwarze 734: /* FALLTHROUGH */
1.88 schwarze 735: case MDOC_Ar:
1.1 kristaps 736: /* FALLTHROUGH */
1.88 schwarze 737: case MDOC_Fl:
1.1 kristaps 738: /* FALLTHROUGH */
1.88 schwarze 739: case MDOC_Mt:
1.18 schwarze 740: /* FALLTHROUGH */
1.88 schwarze 741: case MDOC_Nm:
1.19 schwarze 742: /* FALLTHROUGH */
1.88 schwarze 743: case MDOC_Pa:
1.1 kristaps 744: nc = 1;
745: break;
746: default:
747: nc = 0;
748: break;
749: }
750:
1.108 schwarze 751: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 752:
1.100 schwarze 753: d = DELIM_NONE;
754: firstarg = 1;
1.98 schwarze 755: mayopen = 1;
1.45 schwarze 756: for (cnt = scope = 0;; ) {
1.1 kristaps 757: la = *pos;
1.76 schwarze 758: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 759:
1.100 schwarze 760: /*
761: * At the end of a macro line,
762: * opening delimiters do not suppress spacing.
763: */
764:
765: if (ac == ARGS_EOLN) {
766: if (d == DELIM_OPEN)
767: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 768: break;
1.100 schwarze 769: }
770:
771: /*
772: * The rest of the macro line is only punctuation,
773: * to be handled by append_delims().
774: * If there were no other arguments,
775: * do not allow the first one to suppress spacing,
776: * even if it turns out to be a closing one.
777: */
778:
779: if (ac == ARGS_PUNCT) {
1.132 schwarze 780: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.100 schwarze 781: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 782: break;
1.100 schwarze 783: }
1.1 kristaps 784:
1.101 schwarze 785: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.147 schwarze 786: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1 kristaps 787:
1.88 schwarze 788: /*
1.1 kristaps 789: * In this case, we've located a submacro and must
790: * execute it. Close out scope, if open. If no
791: * elements have been generated, either create one (nc)
792: * or raise a warning.
793: */
794:
1.147 schwarze 795: if (ntok != TOKEN_NONE) {
1.105 schwarze 796: if (scope)
797: rew_elem(mdoc, tok);
1.106 schwarze 798: if (nc && ! cnt) {
799: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 800: rew_last(mdoc, mdoc->last);
1.106 schwarze 801: } else if ( ! nc && ! cnt) {
1.1 kristaps 802: mdoc_argv_free(arg);
1.92 schwarze 803: mandoc_msg(MANDOCERR_MACRO_EMPTY,
804: mdoc->parse, line, ppos,
805: mdoc_macronames[tok]);
1.1 kristaps 806: }
1.107 schwarze 807: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 808: if (nl)
809: append_delims(mdoc, line, pos, buf);
1.107 schwarze 810: return;
1.88 schwarze 811: }
1.1 kristaps 812:
1.88 schwarze 813: /*
1.1 kristaps 814: * Non-quote-enclosed punctuation. Set up our scope, if
815: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 816: * the word.
1.1 kristaps 817: */
818:
1.106 schwarze 819: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 820:
1.45 schwarze 821: if (DELIM_NONE != d) {
822: /*
823: * If we encounter closing punctuation, no word
1.100 schwarze 824: * has been emitted, no scope is open, and we're
1.45 schwarze 825: * allowed to have an empty element, then start
1.98 schwarze 826: * a new scope.
1.45 schwarze 827: */
1.98 schwarze 828: if ((d == DELIM_CLOSE ||
829: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 830: !cnt && !scope && nc && mayopen) {
1.106 schwarze 831: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 832: scope = 1;
1.98 schwarze 833: cnt++;
1.106 schwarze 834: if (tok == MDOC_Nm)
1.98 schwarze 835: mayopen = 0;
1.45 schwarze 836: }
837: /*
838: * Close out our scope, if one is open, before
839: * any punctuation.
840: */
1.105 schwarze 841: if (scope)
842: rew_elem(mdoc, tok);
1.45 schwarze 843: scope = 0;
1.101 schwarze 844: if (tok == MDOC_Fn)
845: mayopen = 0;
1.98 schwarze 846: } else if (mayopen && !scope) {
1.106 schwarze 847: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 848: scope = 1;
1.98 schwarze 849: cnt++;
1.1 kristaps 850: }
1.66 schwarze 851:
1.106 schwarze 852: dword(mdoc, line, la, p, d,
853: MDOC_JOIN & mdoc_macros[tok].flags);
1.27 schwarze 854:
855: /*
1.100 schwarze 856: * If the first argument is a closing delimiter,
857: * do not suppress spacing before it.
858: */
859:
860: if (firstarg && d == DELIM_CLOSE && !nc)
861: mdoc->last->flags &= ~MDOC_DELIMC;
862: firstarg = 0;
863:
864: /*
1.27 schwarze 865: * `Fl' macros have their scope re-opened with each new
866: * word so that the `-' can be added to each one without
867: * having to parse out spaces.
868: */
1.106 schwarze 869: if (scope && tok == MDOC_Fl) {
1.105 schwarze 870: rew_elem(mdoc, tok);
1.45 schwarze 871: scope = 0;
1.27 schwarze 872: }
1.1 kristaps 873: }
874:
1.105 schwarze 875: if (scope)
876: rew_elem(mdoc, tok);
1.1 kristaps 877:
878: /*
879: * If no elements have been collected and we're allowed to have
880: * empties (nc), open a scope and close it out. Otherwise,
881: * raise a warning.
882: */
1.32 schwarze 883:
1.106 schwarze 884: if ( ! cnt) {
885: if (nc) {
886: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
887: rew_last(mdoc, mdoc->last);
888: } else {
889: mdoc_argv_free(arg);
890: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
891: line, ppos, mdoc_macronames[tok]);
892: }
1.1 kristaps 893: }
1.106 schwarze 894: if (nl)
895: append_delims(mdoc, line, pos, buf);
1.1 kristaps 896: }
897:
1.107 schwarze 898: static void
1.1 kristaps 899: blk_full(MACRO_PROT_ARGS)
900: {
1.109 schwarze 901: int la, nl, parsed;
1.1 kristaps 902: struct mdoc_arg *arg;
1.141 schwarze 903: struct roff_node *blk; /* Our own or a broken block. */
904: struct roff_node *head; /* Our own head. */
905: struct roff_node *body; /* Our own body. */
906: struct roff_node *n;
1.37 schwarze 907: enum margserr ac, lac;
1.1 kristaps 908: char *p;
909:
1.76 schwarze 910: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 911:
1.133 schwarze 912: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
913: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
914: line, ppos, mdoc_macronames[tok]);
915: return;
916: }
917:
1.127 schwarze 918: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
919:
920: /* Here, tok is one of Sh Ss Nm Nd It. */
921:
922: blk = NULL;
923: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 924: if (n->flags & MDOC_ENDED) {
925: if ( ! (n->flags & MDOC_VALID))
926: n->flags |= MDOC_BROKEN;
927: continue;
928: }
1.140 schwarze 929: if (n->type != ROFFT_BLOCK)
1.127 schwarze 930: continue;
1.139 schwarze 931:
1.127 schwarze 932: if (tok == MDOC_It && n->tok == MDOC_Bl) {
933: if (blk != NULL) {
934: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
935: mdoc->parse, line, ppos,
936: "It breaks %s",
937: mdoc_macronames[blk->tok]);
938: rew_pending(mdoc, blk);
939: }
940: break;
941: }
942:
943: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
944: switch (tok) {
945: case MDOC_Sh:
946: /* FALLTHROUGH */
947: case MDOC_Ss:
948: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
949: mdoc->parse, line, ppos,
950: "%s breaks %s",
951: mdoc_macronames[tok],
952: mdoc_macronames[n->tok]);
953: rew_pending(mdoc, n);
1.136 schwarze 954: n = mdoc->last;
1.127 schwarze 955: continue;
956: case MDOC_It:
957: /* Delay in case it's astray. */
958: blk = n;
959: continue;
960: default:
961: break;
962: }
963: break;
964: }
965:
966: /* Here, n is one of Sh Ss Nm Nd It. */
1.95 schwarze 967:
1.127 schwarze 968: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
969: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
970: (tok != MDOC_It && n->tok == MDOC_It)))))
1.95 schwarze 971: break;
1.127 schwarze 972:
973: /* Item breaking an explicit block. */
974:
975: if (blk != NULL) {
976: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
977: mdoc->parse, line, ppos,
978: "It breaks %s",
979: mdoc_macronames[blk->tok]);
980: rew_pending(mdoc, blk);
1.128 schwarze 981: blk = NULL;
1.127 schwarze 982: }
983:
984: /* Close out prior implicit scopes. */
985:
986: rew_last(mdoc, n);
987: }
988:
989: /* Skip items outside lists. */
990:
991: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.95 schwarze 992: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
993: line, ppos, "It %s", buf + *pos);
1.149 schwarze 994: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.105 schwarze 995: rew_elem(mdoc, MDOC_br);
1.107 schwarze 996: return;
1.95 schwarze 997: }
1.1 kristaps 998: }
999:
1.32 schwarze 1000: /*
1.68 schwarze 1001: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 1002: * macro openings. Implicit ones first close out prior scope
1003: * (seen above). Delay opening the head until necessary to
1004: * allow leading punctuation to print. Special consideration
1005: * for `It -column', which has phrase-part syntax instead of
1006: * regular child nodes.
1007: */
1008:
1.108 schwarze 1009: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.121 schwarze 1010: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1011: head = body = NULL;
1.1 kristaps 1012:
1.32 schwarze 1013: /*
1.73 schwarze 1014: * Exception: Heads of `It' macros in `-diag' lists are not
1015: * parsed, even though `It' macros in general are parsed.
1016: */
1.107 schwarze 1017:
1.109 schwarze 1018: parsed = tok != MDOC_It ||
1019: mdoc->last->parent->tok != MDOC_Bl ||
1020: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1021:
1022: /*
1.32 schwarze 1023: * The `Nd' macro has all arguments in its body: it's a hybrid
1024: * of block partial-explicit and full-implicit. Stupid.
1025: */
1.12 schwarze 1026:
1.106 schwarze 1027: if (tok == MDOC_Nd) {
1.146 schwarze 1028: head = roff_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 1029: rew_last(mdoc, head);
1.146 schwarze 1030: body = roff_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1031: }
1032:
1.106 schwarze 1033: if (tok == MDOC_Bk)
1.80 schwarze 1034: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1035:
1.106 schwarze 1036: ac = ARGS_PEND;
1037: for (;;) {
1.32 schwarze 1038: la = *pos;
1.106 schwarze 1039: lac = ac;
1.76 schwarze 1040: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1041: if (ac == ARGS_EOLN) {
1042: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.46 schwarze 1043: break;
1044: /*
1045: * This is necessary: if the last token on a
1046: * line is a `Ta' or tab, then we'll get
1047: * ARGS_EOLN, so we must be smart enough to
1048: * reopen our scope if the last parse was a
1049: * phrase or partial phrase.
1050: */
1.123 schwarze 1051: if (body != NULL)
1052: rew_last(mdoc, body);
1.146 schwarze 1053: body = roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1054: break;
1.41 schwarze 1055: }
1.130 schwarze 1056: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1057: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1058: mdoc->parse, line, la, "%s ... %s",
1059: mdoc_macronames[tok], buf + la);
1060: break;
1061: }
1.129 schwarze 1062: if (tok == MDOC_Rs) {
1063: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1064: line, la, "Rs %s", buf + la);
1065: break;
1066: }
1067: if (ac == ARGS_PUNCT)
1068: break;
1.41 schwarze 1069:
1.88 schwarze 1070: /*
1.46 schwarze 1071: * Emit leading punctuation (i.e., punctuation before
1.140 schwarze 1072: * the ROFFT_HEAD) for non-phrase types.
1.46 schwarze 1073: */
1.32 schwarze 1074:
1.106 schwarze 1075: if (head == NULL &&
1076: ac != ARGS_PEND &&
1077: ac != ARGS_PHRASE &&
1078: ac != ARGS_PPHRASE &&
1079: ac != ARGS_QWORD &&
1080: mdoc_isdelim(p) == DELIM_OPEN) {
1081: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1082: continue;
1083: }
1084:
1.46 schwarze 1085: /* Open a head if one hasn't been opened. */
1.32 schwarze 1086:
1.106 schwarze 1087: if (head == NULL)
1.146 schwarze 1088: head = roff_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1089:
1.106 schwarze 1090: if (ac == ARGS_PHRASE ||
1091: ac == ARGS_PEND ||
1092: ac == ARGS_PPHRASE) {
1.107 schwarze 1093:
1.46 schwarze 1094: /*
1095: * If we haven't opened a body yet, rewind the
1096: * head; if we have, rewind that instead.
1097: */
1098:
1.123 schwarze 1099: rew_last(mdoc, body == NULL ? head : body);
1.146 schwarze 1100: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1101:
1102: /*
1103: * Process phrases: set whether we're in a
1104: * partial-phrase (this effects line handling)
1105: * then call down into the phrase parser.
1106: */
1107:
1.106 schwarze 1108: if (ac == ARGS_PPHRASE)
1.76 schwarze 1109: mdoc->flags |= MDOC_PPHRASE;
1.106 schwarze 1110: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.76 schwarze 1111: mdoc->flags |= MDOC_PPHRASE;
1.147 schwarze 1112: parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.76 schwarze 1113: mdoc->flags &= ~MDOC_PPHRASE;
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:
1.1 kristaps 1289: /* FALLTHROUGH */
1.88 schwarze 1290: case MDOC_Ns:
1.1 kristaps 1291: /* FALLTHROUGH */
1.88 schwarze 1292: case MDOC_Ux:
1.1 kristaps 1293: maxargs = 0;
1294: break;
1.88 schwarze 1295: case MDOC_Bx:
1.64 schwarze 1296: /* FALLTHROUGH */
1.89 schwarze 1297: case MDOC_Es:
1298: /* FALLTHROUGH */
1.88 schwarze 1299: case MDOC_Xr:
1.28 schwarze 1300: maxargs = 2;
1301: break;
1.1 kristaps 1302: default:
1303: maxargs = 1;
1304: break;
1305: }
1306:
1.108 schwarze 1307: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1308:
1.137 schwarze 1309: state = -1;
1.112 schwarze 1310: p = NULL;
1311: for (;;) {
1.22 schwarze 1312: la = *pos;
1.76 schwarze 1313: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.137 schwarze 1314:
1315: if (ac == ARGS_WORD && state == -1 &&
1316: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1317: mdoc_isdelim(p) == DELIM_OPEN) {
1318: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1319: continue;
1320: }
1321:
1322: if (state == -1 && tok != MDOC_In &&
1323: tok != MDOC_St && tok != MDOC_Xr) {
1324: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1325: state = 0;
1326: }
1327:
1.112 schwarze 1328: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.137 schwarze 1329: if (abs(state) < 2 && tok == MDOC_Pf)
1.112 schwarze 1330: mandoc_vmsg(MANDOCERR_PF_SKIP,
1331: mdoc->parse, line, ppos, "Pf %s",
1332: p == NULL ? "at eol" : p);
1.1 kristaps 1333: break;
1.112 schwarze 1334: }
1.1 kristaps 1335:
1.137 schwarze 1336: if (state == maxargs) {
1.105 schwarze 1337: rew_elem(mdoc, tok);
1.137 schwarze 1338: state = -2;
1.32 schwarze 1339: }
1340:
1.137 schwarze 1341: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.147 schwarze 1342: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1343:
1.147 schwarze 1344: if (ntok != TOKEN_NONE) {
1.137 schwarze 1345: if (state >= 0) {
1.105 schwarze 1346: rew_elem(mdoc, tok);
1.137 schwarze 1347: state = -2;
1348: }
1.107 schwarze 1349: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1350: break;
1351: }
1352:
1.137 schwarze 1353: if (ac == ARGS_QWORD ||
1354: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1355: mdoc_isdelim(p) == DELIM_NONE) {
1356: if (state == -1) {
1357: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1358: state = 1;
1359: } else if (state >= 0)
1360: state++;
1361: } else if (state >= 0) {
1.105 schwarze 1362: rew_elem(mdoc, tok);
1.137 schwarze 1363: state = -2;
1.28 schwarze 1364: }
1365:
1.106 schwarze 1366: dword(mdoc, line, la, p, DELIM_MAX,
1367: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1368: }
1369:
1.137 schwarze 1370: if (state == -1) {
1371: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1372: line, ppos, mdoc_macronames[tok]);
1373: return;
1.112 schwarze 1374: }
1.137 schwarze 1375:
1376: if (state == 0 && tok == MDOC_Pf)
1377: append_delims(mdoc, line, pos, buf);
1378: if (state >= 0)
1.105 schwarze 1379: rew_elem(mdoc, tok);
1.106 schwarze 1380: if (nl)
1381: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1382: }
1383:
1.107 schwarze 1384: static void
1.1 kristaps 1385: in_line_eoln(MACRO_PROT_ARGS)
1386: {
1.141 schwarze 1387: struct roff_node *n;
1.126 schwarze 1388: struct mdoc_arg *arg;
1.1 kristaps 1389:
1.126 schwarze 1390: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1391: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1392: n = mdoc->last;
1.145 schwarze 1393: if (mdoc->next == ROFF_NEXT_SIBLING)
1.126 schwarze 1394: n = n->parent;
1395: if (n->tok == MDOC_Nm)
1396: rew_last(mdoc, mdoc->last->parent);
1.134 schwarze 1397: }
1398:
1.135 schwarze 1399: if (buf[*pos] == '\0' &&
1400: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.134 schwarze 1401: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.135 schwarze 1402: line, ppos, mdoc_macronames[tok]);
1.134 schwarze 1403: return;
1.126 schwarze 1404: }
1.53 schwarze 1405:
1.108 schwarze 1406: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1407: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1408: if (parse_rest(mdoc, tok, line, pos, buf))
1409: return;
1410: rew_elem(mdoc, tok);
1411: }
1412:
1413: /*
1414: * The simplest argument parser available: Parse the remaining
1415: * words until the end of the phrase or line and return 0
1416: * or until the next macro, call that macro, and return 1.
1417: */
1418: static int
1.145 schwarze 1419: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.110 schwarze 1420: {
1421: int la;
1.1 kristaps 1422:
1423: for (;;) {
1424: la = *pos;
1.109 schwarze 1425: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.110 schwarze 1426: return(0);
1.109 schwarze 1427: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.110 schwarze 1428: return(1);
1.1 kristaps 1429: }
1.28 schwarze 1430: }
1431:
1.107 schwarze 1432: static void
1.28 schwarze 1433: ctx_synopsis(MACRO_PROT_ARGS)
1434: {
1.37 schwarze 1435:
1.107 schwarze 1436: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1437: in_line(mdoc, tok, line, ppos, pos, buf);
1438: else if (tok == MDOC_Nm)
1439: blk_full(mdoc, tok, line, ppos, pos, buf);
1440: else {
1441: assert(tok == MDOC_Vt);
1442: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1443: }
1.1 kristaps 1444: }
1445:
1.17 schwarze 1446: /*
1447: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1448: * They're unusual because they're basically free-form text until a
1449: * macro is encountered.
1450: */
1.107 schwarze 1451: static void
1.46 schwarze 1452: phrase_ta(MACRO_PROT_ARGS)
1453: {
1.141 schwarze 1454: struct roff_node *body, *n;
1.46 schwarze 1455:
1.78 schwarze 1456: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1457:
1.123 schwarze 1458: body = NULL;
1459: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 1460: if (n->flags & MDOC_ENDED)
1.123 schwarze 1461: continue;
1.140 schwarze 1462: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.123 schwarze 1463: body = n;
1464: if (n->tok == MDOC_Bl)
1465: break;
1466: }
1467:
1.107 schwarze 1468: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1469: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1470: line, ppos, "Ta");
1.107 schwarze 1471: return;
1.78 schwarze 1472: }
1.46 schwarze 1473:
1.78 schwarze 1474: /* Advance to the next column. */
1.106 schwarze 1475:
1.123 schwarze 1476: rew_last(mdoc, body);
1.146 schwarze 1477: roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.147 schwarze 1478: parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.46 schwarze 1479: }
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