Annotation of mandoc/mdoc_macro.c, Revision 1.183
1.183 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.182 2015/02/11 13:37:57 schwarze Exp $ */
1.1 kristaps 2: /*
1.116 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.162 schwarze 4: * Copyright (c) 2010, 2012-2015 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.8 kristaps 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.40 kristaps 18: #include "config.h"
1.140 schwarze 19:
20: #include <sys/types.h>
1.40 kristaps 21:
1.1 kristaps 22: #include <assert.h>
23: #include <ctype.h>
24: #include <stdlib.h>
25: #include <stdio.h>
26: #include <string.h>
1.38 kristaps 27: #include <time.h>
1.1 kristaps 28:
1.106 kristaps 29: #include "mdoc.h"
1.68 kristaps 30: #include "mandoc.h"
1.1 kristaps 31: #include "libmdoc.h"
1.64 kristaps 32: #include "libmandoc.h"
1.1 kristaps 33:
1.151 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);
1.53 kristaps 43:
1.150 schwarze 44: static void dword(struct mdoc *, int, int, const char *,
1.123 schwarze 45: enum mdelim, int);
1.150 schwarze 46: static void append_delims(struct mdoc *, int, int *, char *);
1.155 schwarze 47: static enum mdoct lookup(struct mdoc *, enum mdoct,
48: int, int, const char *);
1.153 schwarze 49: static int macro_or_word(MACRO_PROT_ARGS, int);
1.154 schwarze 50: static int parse_rest(struct mdoc *, enum mdoct,
51: int, int *, char *);
1.131 schwarze 52: static enum mdoct rew_alt(enum mdoct);
1.149 schwarze 53: static void rew_elem(struct mdoc *, enum mdoct);
54: static void rew_last(struct mdoc *, const struct mdoc_node *);
1.166 schwarze 55: static void rew_pending(struct mdoc *, const struct mdoc_node *);
1.1 kristaps 56:
57: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123 schwarze 58: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 59: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
60: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
61: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123 schwarze 62: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
63: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
64: { in_line_eoln, 0 }, /* Pp */
65: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
66: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 67: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123 schwarze 68: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 69: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123 schwarze 70: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
71: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
72: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
73: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 74: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129 schwarze 75: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 76: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123 schwarze 77: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
78: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
79: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 80: { in_line_eoln, 0 }, /* Ex */
1.123 schwarze 81: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
82: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123 schwarze 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128 schwarze 86: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18 kristaps 87: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123 schwarze 88: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
89: { blk_full, MDOC_JOIN }, /* Nd */
90: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 91: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132 schwarze 92: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
94: { in_line_eoln, 0 }, /* Rv */
1.123 schwarze 95: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123 schwarze 97: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 98: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123 schwarze 99: { in_line_eoln, MDOC_JOIN }, /* %A */
100: { in_line_eoln, MDOC_JOIN }, /* %B */
101: { in_line_eoln, MDOC_JOIN }, /* %D */
102: { in_line_eoln, MDOC_JOIN }, /* %I */
103: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 104: { in_line_eoln, 0 }, /* %N */
1.123 schwarze 105: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 106: { in_line_eoln, 0 }, /* %P */
1.123 schwarze 107: { in_line_eoln, MDOC_JOIN }, /* %R */
108: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 109: { in_line_eoln, 0 }, /* %V */
1.123 schwarze 110: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
111: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
112: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
113: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
114: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 115: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123 schwarze 116: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
117: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
118: { blk_full, MDOC_EXPLICIT }, /* Bf */
119: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
120: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
121: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 122: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
123: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
124: { in_line_eoln, 0 }, /* Db */
1.123 schwarze 125: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
126: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
127: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
128: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
129: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
130: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
131: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
132: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 133: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
134: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 135: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144 schwarze 136: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123 schwarze 137: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
138: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 139: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123 schwarze 141: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
142: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52 kristaps 143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123 schwarze 144: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
145: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
146: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
147: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
148: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
149: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
150: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
151: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
152: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
153: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 154: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123 schwarze 155: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
156: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
157: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
158: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
159: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147 schwarze 160: { in_line_argn, 0 }, /* Sm */
1.123 schwarze 161: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
162: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 163: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123 schwarze 164: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 165: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
166: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123 schwarze 167: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
168: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
169: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
170: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
171: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
172: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
173: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 174: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123 schwarze 175: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 176: { in_line_eoln, 0 }, /* Bt */
177: { in_line_eoln, 0 }, /* Hf */
1.132 schwarze 178: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 179: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 180: { in_line, 0 }, /* Lb */
1.123 schwarze 181: { in_line_eoln, 0 }, /* Lp */
182: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
183: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
184: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
185: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
186: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
187: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
188: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
189: { in_line_eoln, MDOC_JOIN }, /* %C */
1.132 schwarze 190: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
191: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 192: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123 schwarze 193: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20 kristaps 194: { in_line_eoln, 0 }, /* br */
195: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 196: { in_line_eoln, 0 }, /* %U */
1.123 schwarze 197: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143 schwarze 198: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 199: };
200:
201: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
202:
203:
204: /*
205: * This is called at the end of parsing. It must traverse up the tree,
206: * closing out open [implicit] scopes. Obviously, open explicit scopes
207: * are errors.
208: */
1.151 schwarze 209: void
1.119 schwarze 210: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 211: {
212: struct mdoc_node *n;
213:
214: /* Scan for open explicit scopes. */
215:
1.151 schwarze 216: n = mdoc->last->flags & MDOC_VALID ?
1.131 schwarze 217: mdoc->last->parent : mdoc->last;
1.1 kristaps 218:
1.94 schwarze 219: for ( ; n; n = n->parent)
1.151 schwarze 220: if (n->type == MDOC_BLOCK &&
221: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137 schwarze 222: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
223: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 224:
1.32 kristaps 225: /* Rewind to the first. */
226:
1.149 schwarze 227: rew_last(mdoc, mdoc->first);
1.1 kristaps 228: }
229:
1.32 kristaps 230: /*
1.153 schwarze 231: * Look up the macro at *p called by "from",
232: * or as a line macro if from == MDOC_MAX.
1.32 kristaps 233: */
1.53 kristaps 234: static enum mdoct
1.155 schwarze 235: lookup(struct mdoc *mdoc, enum mdoct from, int line, int ppos, const char *p)
1.28 kristaps 236: {
1.58 kristaps 237: enum mdoct res;
1.1 kristaps 238:
1.153 schwarze 239: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
240: res = mdoc_hash_find(p);
1.155 schwarze 241: if (res != MDOC_MAX) {
242: if (mdoc_macros[res].flags & MDOC_CALLABLE)
243: return(res);
244: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
245: mandoc_msg(MANDOCERR_MACRO_CALL,
246: mdoc->parse, line, ppos, p);
247: }
1.153 schwarze 248: }
1.1 kristaps 249: return(MDOC_MAX);
250: }
251:
1.166 schwarze 252: /*
253: * Rewind up to and including a specific node.
254: */
1.149 schwarze 255: static void
1.32 kristaps 256: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 257: {
1.100 kristaps 258: struct mdoc_node *n, *np;
1.1 kristaps 259:
260: assert(to);
261: mdoc->next = MDOC_NEXT_SIBLING;
262: while (mdoc->last != to) {
1.100 kristaps 263: /*
264: * Save the parent here, because we may delete the
1.119 schwarze 265: * mdoc->last node in the post-validation phase and reset
266: * it to mdoc->last->parent, causing a step in the closing
1.100 kristaps 267: * out to be lost.
268: */
269: np = mdoc->last->parent;
1.149 schwarze 270: mdoc_valid_post(mdoc);
1.99 kristaps 271: n = mdoc->last;
1.100 kristaps 272: mdoc->last = np;
1.1 kristaps 273: assert(mdoc->last);
1.99 kristaps 274: mdoc->last->last = n;
1.1 kristaps 275: }
1.149 schwarze 276: mdoc_valid_post(mdoc);
1.1 kristaps 277: }
278:
1.32 kristaps 279: /*
1.166 schwarze 280: * Rewind up to a specific block, including all blocks that broke it.
281: */
282: static void
283: rew_pending(struct mdoc *mdoc, const struct mdoc_node *n)
284: {
285:
1.183 ! schwarze 286: for (;;) {
! 287: rew_last(mdoc, n);
! 288:
! 289: switch (n->type) {
! 290: case MDOC_HEAD:
! 291: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
! 292: return;
! 293: case MDOC_BLOCK:
! 294: break;
! 295: default:
! 296: return;
! 297: }
1.166 schwarze 298:
1.183 ! schwarze 299: if ( ! (n->flags & MDOC_BROKEN))
! 300: return;
1.166 schwarze 301:
1.183 ! schwarze 302: for (;;) {
! 303: if ((n = n->parent) == NULL)
! 304: return;
! 305:
! 306: if (n->type == MDOC_BLOCK ||
! 307: n->type == MDOC_HEAD) {
! 308: if (n->flags & MDOC_ENDED)
! 309: break;
! 310: else
! 311: return;
! 312: }
! 313: }
1.166 schwarze 314: }
315: }
316:
317: /*
1.84 schwarze 318: * For a block closing macro, return the corresponding opening one.
319: * Otherwise, return the macro itself.
1.32 kristaps 320: */
1.47 kristaps 321: static enum mdoct
322: rew_alt(enum mdoct tok)
1.1 kristaps 323: {
324: switch (tok) {
1.131 schwarze 325: case MDOC_Ac:
1.1 kristaps 326: return(MDOC_Ao);
1.131 schwarze 327: case MDOC_Bc:
1.1 kristaps 328: return(MDOC_Bo);
1.131 schwarze 329: case MDOC_Brc:
1.1 kristaps 330: return(MDOC_Bro);
1.131 schwarze 331: case MDOC_Dc:
1.1 kristaps 332: return(MDOC_Do);
1.131 schwarze 333: case MDOC_Ec:
1.1 kristaps 334: return(MDOC_Eo);
1.131 schwarze 335: case MDOC_Ed:
1.1 kristaps 336: return(MDOC_Bd);
1.131 schwarze 337: case MDOC_Ef:
1.1 kristaps 338: return(MDOC_Bf);
1.131 schwarze 339: case MDOC_Ek:
1.1 kristaps 340: return(MDOC_Bk);
1.131 schwarze 341: case MDOC_El:
1.1 kristaps 342: return(MDOC_Bl);
1.131 schwarze 343: case MDOC_Fc:
1.1 kristaps 344: return(MDOC_Fo);
1.131 schwarze 345: case MDOC_Oc:
1.1 kristaps 346: return(MDOC_Oo);
1.131 schwarze 347: case MDOC_Pc:
1.1 kristaps 348: return(MDOC_Po);
1.131 schwarze 349: case MDOC_Qc:
1.1 kristaps 350: return(MDOC_Qo);
1.131 schwarze 351: case MDOC_Re:
1.1 kristaps 352: return(MDOC_Rs);
1.131 schwarze 353: case MDOC_Sc:
1.1 kristaps 354: return(MDOC_So);
1.131 schwarze 355: case MDOC_Xc:
1.1 kristaps 356: return(MDOC_Xo);
357: default:
1.84 schwarze 358: return(tok);
1.1 kristaps 359: }
360: /* NOTREACHED */
361: }
362:
1.149 schwarze 363: static void
1.47 kristaps 364: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 365: {
366: struct mdoc_node *n;
367:
368: n = mdoc->last;
369: if (MDOC_ELEM != n->type)
370: n = n->parent;
371: assert(MDOC_ELEM == n->type);
372: assert(tok == n->tok);
1.149 schwarze 373: rew_last(mdoc, n);
1.1 kristaps 374: }
375:
1.83 schwarze 376: /*
1.105 kristaps 377: * Allocate a word and check whether it's punctuation or not.
378: * Punctuation consists of those tokens found in mdoc_isdelim().
379: */
1.150 schwarze 380: static void
1.123 schwarze 381: dword(struct mdoc *mdoc, int line, int col, const char *p,
382: enum mdelim d, int may_append)
1.105 kristaps 383: {
1.131 schwarze 384:
1.150 schwarze 385: if (d == DELIM_MAX)
1.105 kristaps 386: d = mdoc_isdelim(p);
387:
1.123 schwarze 388: if (may_append &&
1.150 schwarze 389: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
390: d == DELIM_NONE && mdoc->last->type == MDOC_TEXT &&
391: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123 schwarze 392: mdoc_word_append(mdoc, p);
1.150 schwarze 393: return;
1.123 schwarze 394: }
395:
1.150 schwarze 396: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 397:
1.108 schwarze 398: /*
1.144 schwarze 399: * If the word consists of a bare delimiter,
400: * flag the new node accordingly,
401: * unless doing so was vetoed by the invoking macro.
402: * Always clear the veto, it is only valid for one word.
1.108 schwarze 403: */
404:
1.144 schwarze 405: if (d == DELIM_OPEN)
406: mdoc->last->flags |= MDOC_DELIMO;
407: else if (d == DELIM_CLOSE &&
408: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 409: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 410: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 411: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 412: }
1.1 kristaps 413:
1.150 schwarze 414: static void
1.119 schwarze 415: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 416: {
1.153 schwarze 417: char *p;
1.66 kristaps 418: int la;
1.1 kristaps 419:
1.150 schwarze 420: if (buf[*pos] == '\0')
421: return;
1.1 kristaps 422:
423: for (;;) {
1.66 kristaps 424: la = *pos;
1.153 schwarze 425: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 426: break;
1.123 schwarze 427: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 428:
429: /*
430: * If we encounter end-of-sentence symbols, then trigger
431: * the double-space.
432: *
1.109 kristaps 433: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 434: * the last symbol, such that `. )' will cause the
435: * correct double-spacing. However, (1) groff isn't
436: * smart enough to do this and (2) it would require
437: * knowing which symbols break this behaviour, for
1.109 kristaps 438: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 439: */
1.150 schwarze 440:
1.127 schwarze 441: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 442: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 443: }
444: }
445:
446: /*
1.153 schwarze 447: * Parse one word.
448: * If it is a macro, call it and return 1.
449: * Otherwise, allocate it and return 0.
450: */
451: static int
452: macro_or_word(MACRO_PROT_ARGS, int parsed)
453: {
454: char *p;
455: enum mdoct ntok;
456:
457: p = buf + ppos;
458: ntok = MDOC_MAX;
1.157 schwarze 459: if (*p == '"')
1.153 schwarze 460: p++;
1.157 schwarze 461: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 462: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 463:
464: if (ntok == MDOC_MAX) {
465: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
466: mdoc_macros[tok].flags & MDOC_JOIN);
467: return(0);
468: } else {
469: if (mdoc_macros[tok].fp == in_line_eoln)
470: rew_elem(mdoc, tok);
471: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
472: if (tok == MDOC_MAX)
473: append_delims(mdoc, line, pos, buf);
474: return(1);
475: }
476: }
477:
478: /*
1.131 schwarze 479: * Close out block partial/full explicit.
1.1 kristaps 480: */
1.151 schwarze 481: static void
1.1 kristaps 482: blk_exp_close(MACRO_PROT_ARGS)
483: {
1.83 schwarze 484: struct mdoc_node *body; /* Our own body. */
1.148 schwarze 485: struct mdoc_node *endbody; /* Our own end marker. */
1.171 schwarze 486: struct mdoc_node *itblk; /* An It block starting later. */
1.83 schwarze 487: struct mdoc_node *later; /* A sub-block starting later. */
1.166 schwarze 488: struct mdoc_node *n; /* Search back to our block. */
1.83 schwarze 489:
1.171 schwarze 490: int j, lastarg, maxargs, nl;
1.55 kristaps 491: enum margserr ac;
1.83 schwarze 492: enum mdoct atok, ntok;
1.1 kristaps 493: char *p;
494:
1.119 schwarze 495: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 496:
1.1 kristaps 497: switch (tok) {
1.131 schwarze 498: case MDOC_Ec:
1.1 kristaps 499: maxargs = 1;
500: break;
1.131 schwarze 501: case MDOC_Ek:
1.125 schwarze 502: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 503: /* FALLTHROUGH */
1.1 kristaps 504: default:
505: maxargs = 0;
506: break;
507: }
508:
1.83 schwarze 509: /*
510: * Search backwards for beginnings of blocks,
511: * both of our own and of pending sub-blocks.
512: */
1.151 schwarze 513:
1.83 schwarze 514: atok = rew_alt(tok);
1.171 schwarze 515: body = endbody = itblk = later = NULL;
1.119 schwarze 516: for (n = mdoc->last; n; n = n->parent) {
1.183 ! schwarze 517: if (n->flags & MDOC_ENDED) {
! 518: if ( ! (n->flags & MDOC_VALID))
! 519: n->flags |= MDOC_BROKEN;
1.83 schwarze 520: continue;
1.183 ! schwarze 521: }
1.83 schwarze 522:
523: /* Remember the start of our own body. */
1.151 schwarze 524:
1.150 schwarze 525: if (n->type == MDOC_BODY && atok == n->tok) {
1.175 schwarze 526: if (n->end == ENDBODY_NOT)
1.83 schwarze 527: body = n;
528: continue;
529: }
530:
1.150 schwarze 531: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 532: continue;
1.160 schwarze 533:
534: if (n->tok == MDOC_It) {
1.171 schwarze 535: itblk = n;
1.160 schwarze 536: continue;
537: }
538:
1.83 schwarze 539: if (atok == n->tok) {
540: assert(body);
541:
542: /*
543: * Found the start of our own block.
544: * When there is no pending sub block,
545: * just proceed to closing out.
546: */
1.151 schwarze 547:
1.160 schwarze 548: if (later == NULL ||
1.171 schwarze 549: (tok == MDOC_El && itblk == NULL))
1.83 schwarze 550: break;
551:
1.131 schwarze 552: /*
1.167 schwarze 553: * When there is a pending sub block, postpone
554: * closing out the current block until the
555: * rew_pending() closing out the sub-block.
1.83 schwarze 556: * Mark the place where the formatting - but not
557: * the scope - of the current block ends.
558: */
1.151 schwarze 559:
1.183 ! schwarze 560: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
! 561: line, ppos, "%s breaks %s",
! 562: mdoc_macronames[atok],
! 563: mdoc_macronames[later->tok]);
! 564:
1.166 schwarze 565: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150 schwarze 566: atok, body, ENDBODY_SPACE);
1.151 schwarze 567:
1.183 ! schwarze 568: if (tok == MDOC_El)
! 569: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
! 570:
1.151 schwarze 571: /*
572: * If a block closing macro taking arguments
573: * breaks another block, put the arguments
1.166 schwarze 574: * into the end marker.
1.151 schwarze 575: */
576:
1.166 schwarze 577: if (maxargs)
1.148 schwarze 578: mdoc->next = MDOC_NEXT_CHILD;
1.83 schwarze 579: break;
1.182 schwarze 580: }
581:
582: /* Explicit blocks close out description lines. */
583:
584: if (n->tok == MDOC_Nd) {
585: rew_last(mdoc, n);
586: continue;
1.83 schwarze 587: }
588:
1.183 ! schwarze 589: /* Breaking an open sub block. */
1.151 schwarze 590:
1.183 ! schwarze 591: n->flags |= MDOC_BROKEN;
! 592: if (later == NULL)
1.83 schwarze 593: later = n;
594: }
1.166 schwarze 595:
596: if (body == NULL) {
597: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
598: line, ppos, mdoc_macronames[tok]);
599: if (maxargs && endbody == NULL) {
600: /*
601: * Stray .Ec without previous .Eo:
602: * Break the output line, keep the arguments.
603: */
604: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
605: rew_elem(mdoc, MDOC_br);
606: }
607: } else if (endbody == NULL) {
608: rew_last(mdoc, body);
609: if (maxargs)
610: mdoc_tail_alloc(mdoc, line, ppos, atok);
611: }
1.83 schwarze 612:
1.150 schwarze 613: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
614: if (buf[*pos] != '\0')
1.136 schwarze 615: mandoc_vmsg(MANDOCERR_ARG_SKIP,
616: mdoc->parse, line, ppos,
617: "%s %s", mdoc_macronames[tok],
618: buf + *pos);
1.171 schwarze 619: if (endbody == NULL && n != NULL)
1.167 schwarze 620: rew_pending(mdoc, n);
1.151 schwarze 621: return;
1.1 kristaps 622: }
623:
1.166 schwarze 624: if (endbody != NULL)
625: n = endbody;
1.148 schwarze 626: for (j = 0; ; j++) {
1.1 kristaps 627: lastarg = *pos;
628:
1.166 schwarze 629: if (j == maxargs && n != NULL) {
630: rew_pending(mdoc, n);
631: n = NULL;
1.1 kristaps 632: }
633:
1.119 schwarze 634: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 635: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 636: break;
637:
1.155 schwarze 638: ntok = ac == ARGS_QWORD ? MDOC_MAX :
639: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 640:
1.150 schwarze 641: if (ntok == MDOC_MAX) {
642: dword(mdoc, line, lastarg, p, DELIM_MAX,
643: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 644: continue;
645: }
1.1 kristaps 646:
1.166 schwarze 647: if (n != NULL) {
648: rew_pending(mdoc, n);
649: n = NULL;
1.54 kristaps 650: }
1.122 schwarze 651: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 652: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 653: break;
1.1 kristaps 654: }
655:
1.166 schwarze 656: if (n != NULL)
657: rew_pending(mdoc, n);
1.150 schwarze 658: if (nl)
659: append_delims(mdoc, line, pos, buf);
1.1 kristaps 660: }
661:
1.151 schwarze 662: static void
1.1 kristaps 663: in_line(MACRO_PROT_ARGS)
664: {
1.144 schwarze 665: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.53 kristaps 666: enum mdoct ntok;
1.55 kristaps 667: enum margserr ac;
1.67 schwarze 668: enum mdelim d;
1.53 kristaps 669: struct mdoc_arg *arg;
670: char *p;
1.1 kristaps 671:
1.119 schwarze 672: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 673:
1.4 kristaps 674: /*
675: * Whether we allow ignored elements (those without content,
676: * usually because of reserved words) to squeak by.
677: */
1.45 kristaps 678:
1.4 kristaps 679: switch (tok) {
1.131 schwarze 680: case MDOC_An:
1.26 kristaps 681: /* FALLTHROUGH */
1.131 schwarze 682: case MDOC_Ar:
1.4 kristaps 683: /* FALLTHROUGH */
1.131 schwarze 684: case MDOC_Fl:
1.4 kristaps 685: /* FALLTHROUGH */
1.131 schwarze 686: case MDOC_Mt:
1.12 kristaps 687: /* FALLTHROUGH */
1.131 schwarze 688: case MDOC_Nm:
1.26 kristaps 689: /* FALLTHROUGH */
1.131 schwarze 690: case MDOC_Pa:
1.4 kristaps 691: nc = 1;
692: break;
693: default:
694: nc = 0;
695: break;
696: }
697:
1.152 schwarze 698: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 699:
1.144 schwarze 700: d = DELIM_NONE;
701: firstarg = 1;
1.142 schwarze 702: mayopen = 1;
1.70 kristaps 703: for (cnt = scope = 0;; ) {
1.1 kristaps 704: la = *pos;
1.119 schwarze 705: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 706:
1.144 schwarze 707: /*
708: * At the end of a macro line,
709: * opening delimiters do not suppress spacing.
710: */
711:
712: if (ac == ARGS_EOLN) {
713: if (d == DELIM_OPEN)
714: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 715: break;
1.144 schwarze 716: }
717:
718: /*
719: * The rest of the macro line is only punctuation,
720: * to be handled by append_delims().
721: * If there were no other arguments,
722: * do not allow the first one to suppress spacing,
723: * even if it turns out to be a closing one.
724: */
725:
726: if (ac == ARGS_PUNCT) {
1.176 schwarze 727: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144 schwarze 728: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 729: break;
1.144 schwarze 730: }
1.1 kristaps 731:
1.145 schwarze 732: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155 schwarze 733: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 734:
1.131 schwarze 735: /*
1.4 kristaps 736: * In this case, we've located a submacro and must
737: * execute it. Close out scope, if open. If no
738: * elements have been generated, either create one (nc)
739: * or raise a warning.
740: */
1.1 kristaps 741:
1.150 schwarze 742: if (ntok != MDOC_MAX) {
1.149 schwarze 743: if (scope)
744: rew_elem(mdoc, tok);
1.150 schwarze 745: if (nc && ! cnt) {
746: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 747: rew_last(mdoc, mdoc->last);
1.150 schwarze 748: } else if ( ! nc && ! cnt) {
1.7 kristaps 749: mdoc_argv_free(arg);
1.135 schwarze 750: mandoc_msg(MANDOCERR_MACRO_EMPTY,
751: mdoc->parse, line, ppos,
752: mdoc_macronames[tok]);
1.7 kristaps 753: }
1.151 schwarze 754: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 755: if (nl)
756: append_delims(mdoc, line, pos, buf);
1.151 schwarze 757: return;
1.131 schwarze 758: }
1.1 kristaps 759:
1.131 schwarze 760: /*
1.4 kristaps 761: * Non-quote-enclosed punctuation. Set up our scope, if
762: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 763: * the word.
1.4 kristaps 764: */
1.1 kristaps 765:
1.150 schwarze 766: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 767:
1.70 kristaps 768: if (DELIM_NONE != d) {
769: /*
770: * If we encounter closing punctuation, no word
1.144 schwarze 771: * has been emitted, no scope is open, and we're
1.70 kristaps 772: * allowed to have an empty element, then start
1.142 schwarze 773: * a new scope.
1.70 kristaps 774: */
1.142 schwarze 775: if ((d == DELIM_CLOSE ||
776: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 777: !cnt && !scope && nc && mayopen) {
1.150 schwarze 778: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 779: scope = 1;
1.142 schwarze 780: cnt++;
1.150 schwarze 781: if (tok == MDOC_Nm)
1.142 schwarze 782: mayopen = 0;
1.70 kristaps 783: }
784: /*
785: * Close out our scope, if one is open, before
786: * any punctuation.
787: */
1.149 schwarze 788: if (scope)
789: rew_elem(mdoc, tok);
1.70 kristaps 790: scope = 0;
1.145 schwarze 791: if (tok == MDOC_Fn)
792: mayopen = 0;
1.142 schwarze 793: } else if (mayopen && !scope) {
1.150 schwarze 794: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 795: scope = 1;
1.142 schwarze 796: cnt++;
1.1 kristaps 797: }
1.105 kristaps 798:
1.150 schwarze 799: dword(mdoc, line, la, p, d,
800: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 801:
802: /*
1.144 schwarze 803: * If the first argument is a closing delimiter,
804: * do not suppress spacing before it.
805: */
806:
807: if (firstarg && d == DELIM_CLOSE && !nc)
808: mdoc->last->flags &= ~MDOC_DELIMC;
809: firstarg = 0;
810:
811: /*
1.39 kristaps 812: * `Fl' macros have their scope re-opened with each new
813: * word so that the `-' can be added to each one without
814: * having to parse out spaces.
815: */
1.150 schwarze 816: if (scope && tok == MDOC_Fl) {
1.149 schwarze 817: rew_elem(mdoc, tok);
1.70 kristaps 818: scope = 0;
1.39 kristaps 819: }
1.1 kristaps 820: }
821:
1.149 schwarze 822: if (scope)
823: rew_elem(mdoc, tok);
1.4 kristaps 824:
825: /*
826: * If no elements have been collected and we're allowed to have
827: * empties (nc), open a scope and close it out. Otherwise,
828: * raise a warning.
829: */
1.45 kristaps 830:
1.150 schwarze 831: if ( ! cnt) {
832: if (nc) {
833: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
834: rew_last(mdoc, mdoc->last);
835: } else {
836: mdoc_argv_free(arg);
837: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
838: line, ppos, mdoc_macronames[tok]);
839: }
1.7 kristaps 840: }
1.150 schwarze 841: if (nl)
842: append_delims(mdoc, line, pos, buf);
1.1 kristaps 843: }
844:
1.151 schwarze 845: static void
1.1 kristaps 846: blk_full(MACRO_PROT_ARGS)
847: {
1.153 schwarze 848: int la, nl, parsed;
1.1 kristaps 849: struct mdoc_arg *arg;
1.171 schwarze 850: struct mdoc_node *blk; /* Our own or a broken block. */
1.165 schwarze 851: struct mdoc_node *head; /* Our own head. */
852: struct mdoc_node *body; /* Our own body. */
1.47 kristaps 853: struct mdoc_node *n;
1.59 kristaps 854: enum margserr ac, lac;
1.1 kristaps 855: char *p;
856:
1.119 schwarze 857: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 858:
1.177 schwarze 859: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
860: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
861: line, ppos, mdoc_macronames[tok]);
862: return;
863: }
864:
1.171 schwarze 865: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
866:
867: /* Here, tok is one of Sh Ss Nm Nd It. */
868:
869: blk = NULL;
870: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 ! schwarze 871: if (n->flags & MDOC_ENDED) {
! 872: if ( ! (n->flags & MDOC_VALID))
! 873: n->flags |= MDOC_BROKEN;
! 874: continue;
! 875: }
! 876: if (n->type != MDOC_BLOCK)
1.171 schwarze 877: continue;
1.183 ! schwarze 878:
1.171 schwarze 879: if (tok == MDOC_It && n->tok == MDOC_Bl) {
880: if (blk != NULL) {
881: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
882: mdoc->parse, line, ppos,
883: "It breaks %s",
884: mdoc_macronames[blk->tok]);
885: rew_pending(mdoc, blk);
886: }
887: break;
888: }
889:
890: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
891: switch (tok) {
892: case MDOC_Sh:
893: /* FALLTHROUGH */
894: case MDOC_Ss:
895: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
896: mdoc->parse, line, ppos,
897: "%s breaks %s",
898: mdoc_macronames[tok],
899: mdoc_macronames[n->tok]);
900: rew_pending(mdoc, n);
1.180 schwarze 901: n = mdoc->last;
1.171 schwarze 902: continue;
903: case MDOC_It:
904: /* Delay in case it's astray. */
905: blk = n;
906: continue;
907: default:
908: break;
909: }
910: break;
911: }
912:
913: /* Here, n is one of Sh Ss Nm Nd It. */
1.138 schwarze 914:
1.171 schwarze 915: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
916: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
917: (tok != MDOC_It && n->tok == MDOC_It)))))
1.138 schwarze 918: break;
1.171 schwarze 919:
920: /* Item breaking an explicit block. */
921:
922: if (blk != NULL) {
923: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
924: mdoc->parse, line, ppos,
925: "It breaks %s",
926: mdoc_macronames[blk->tok]);
927: rew_pending(mdoc, blk);
1.172 schwarze 928: blk = NULL;
1.171 schwarze 929: }
930:
931: /* Close out prior implicit scopes. */
932:
933: rew_last(mdoc, n);
934: }
935:
936: /* Skip items outside lists. */
937:
938: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138 schwarze 939: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
940: line, ppos, "It %s", buf + *pos);
1.150 schwarze 941: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 942: rew_elem(mdoc, MDOC_br);
1.151 schwarze 943: return;
1.138 schwarze 944: }
1.1 kristaps 945: }
946:
1.45 kristaps 947: /*
1.109 kristaps 948: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 949: * macro openings. Implicit ones first close out prior scope
950: * (seen above). Delay opening the head until necessary to
951: * allow leading punctuation to print. Special consideration
952: * for `It -column', which has phrase-part syntax instead of
953: * regular child nodes.
954: */
955:
1.152 schwarze 956: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 schwarze 957: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 958: head = body = NULL;
1.115 schwarze 959:
960: /*
961: * Exception: Heads of `It' macros in `-diag' lists are not
962: * parsed, even though `It' macros in general are parsed.
963: */
1.151 schwarze 964:
1.153 schwarze 965: parsed = tok != MDOC_It ||
966: mdoc->last->parent->tok != MDOC_Bl ||
967: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 968:
1.45 kristaps 969: /*
970: * The `Nd' macro has all arguments in its body: it's a hybrid
971: * of block partial-explicit and full-implicit. Stupid.
972: */
1.19 kristaps 973:
1.150 schwarze 974: if (tok == MDOC_Nd) {
975: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 976: rew_last(mdoc, head);
1.150 schwarze 977: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 978: }
979:
1.150 schwarze 980: if (tok == MDOC_Bk)
1.123 schwarze 981: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 982:
1.150 schwarze 983: ac = ARGS_PEND;
984: for (;;) {
1.45 kristaps 985: la = *pos;
1.150 schwarze 986: lac = ac;
1.119 schwarze 987: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 988: if (ac == ARGS_EOLN) {
989: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 990: break;
991: /*
992: * This is necessary: if the last token on a
993: * line is a `Ta' or tab, then we'll get
994: * ARGS_EOLN, so we must be smart enough to
995: * reopen our scope if the last parse was a
996: * phrase or partial phrase.
997: */
1.167 schwarze 998: if (body != NULL)
999: rew_last(mdoc, body);
1.150 schwarze 1000: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1001: break;
1.75 kristaps 1002: }
1.174 schwarze 1003: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1004: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1005: mdoc->parse, line, la, "%s ... %s",
1006: mdoc_macronames[tok], buf + la);
1007: break;
1008: }
1.173 schwarze 1009: if (tok == MDOC_Rs) {
1010: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1011: line, la, "Rs %s", buf + la);
1012: break;
1013: }
1014: if (ac == ARGS_PUNCT)
1015: break;
1.45 kristaps 1016:
1.131 schwarze 1017: /*
1.73 kristaps 1018: * Emit leading punctuation (i.e., punctuation before
1019: * the MDOC_HEAD) for non-phrase types.
1020: */
1.45 kristaps 1021:
1.150 schwarze 1022: if (head == NULL &&
1023: ac != ARGS_PEND &&
1024: ac != ARGS_PHRASE &&
1025: ac != ARGS_PPHRASE &&
1026: ac != ARGS_QWORD &&
1027: mdoc_isdelim(p) == DELIM_OPEN) {
1028: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1029: continue;
1030: }
1031:
1.74 kristaps 1032: /* Open a head if one hasn't been opened. */
1.45 kristaps 1033:
1.150 schwarze 1034: if (head == NULL)
1035: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1036:
1.150 schwarze 1037: if (ac == ARGS_PHRASE ||
1038: ac == ARGS_PEND ||
1039: ac == ARGS_PPHRASE) {
1.151 schwarze 1040:
1.73 kristaps 1041: /*
1.74 kristaps 1042: * If we haven't opened a body yet, rewind the
1043: * head; if we have, rewind that instead.
1044: */
1045:
1.167 schwarze 1046: rew_last(mdoc, body == NULL ? head : body);
1.150 schwarze 1047: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1048:
1049: /*
1.73 kristaps 1050: * Process phrases: set whether we're in a
1051: * partial-phrase (this effects line handling)
1052: * then call down into the phrase parser.
1053: */
1.74 kristaps 1054:
1.150 schwarze 1055: if (ac == ARGS_PPHRASE)
1.119 schwarze 1056: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1057: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1058: mdoc->flags |= MDOC_PPHRASE;
1.154 schwarze 1059: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1060: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1061: continue;
1062: }
1063:
1.153 schwarze 1064: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1065: break;
1.45 kristaps 1066: }
1.1 kristaps 1067:
1.165 schwarze 1068: if (blk->flags & MDOC_VALID)
1069: return;
1.150 schwarze 1070: if (head == NULL)
1071: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.174 schwarze 1072: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150 schwarze 1073: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1074: if (body != NULL)
1.77 kristaps 1075: goto out;
1.19 kristaps 1076:
1.47 kristaps 1077: /*
1.49 kristaps 1078: * If there is an open (i.e., unvalidated) sub-block requiring
1079: * explicit close-out, postpone switching the current block from
1.167 schwarze 1080: * head to body until the rew_pending() call closing out that
1.49 kristaps 1081: * sub-block.
1.47 kristaps 1082: */
1.119 schwarze 1083: for (n = mdoc->last; n && n != head; n = n->parent) {
1.183 ! schwarze 1084: if (n->flags & MDOC_ENDED) {
! 1085: if ( ! (n->flags & MDOC_VALID))
! 1086: n->flags |= MDOC_BROKEN;
! 1087: continue;
! 1088: }
1.151 schwarze 1089: if (n->type == MDOC_BLOCK &&
1.183 ! schwarze 1090: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
! 1091: n->flags = MDOC_BROKEN;
! 1092: head->flags = MDOC_ENDED;
1.47 kristaps 1093: }
1094: }
1.183 ! schwarze 1095: if (head->flags & MDOC_ENDED)
! 1096: return;
1.47 kristaps 1097:
1.45 kristaps 1098: /* Close out scopes to remain in a consistent state. */
1099:
1.167 schwarze 1100: rew_last(mdoc, head);
1101: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1102: out:
1.150 schwarze 1103: if (mdoc->flags & MDOC_FREECOL) {
1.167 schwarze 1104: rew_last(mdoc, body);
1105: rew_last(mdoc, blk);
1.150 schwarze 1106: mdoc->flags &= ~MDOC_FREECOL;
1107: }
1.1 kristaps 1108: }
1109:
1.151 schwarze 1110: static void
1.1 kristaps 1111: blk_part_imp(MACRO_PROT_ARGS)
1112: {
1.63 kristaps 1113: int la, nl;
1.55 kristaps 1114: enum margserr ac;
1.1 kristaps 1115: char *p;
1.43 kristaps 1116: struct mdoc_node *blk; /* saved block context */
1117: struct mdoc_node *body; /* saved body context */
1118: struct mdoc_node *n;
1.1 kristaps 1119:
1.119 schwarze 1120: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1121:
1.43 kristaps 1122: /*
1123: * A macro that spans to the end of the line. This is generally
1124: * (but not necessarily) called as the first macro. The block
1125: * has a head as the immediate child, which is always empty,
1126: * followed by zero or more opening punctuation nodes, then the
1127: * body (which may be empty, depending on the macro), then zero
1128: * or more closing punctuation nodes.
1129: */
1.32 kristaps 1130:
1.150 schwarze 1131: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.162 schwarze 1132: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1133:
1.43 kristaps 1134: /*
1135: * Open the body scope "on-demand", that is, after we've
1136: * processed all our the leading delimiters (open parenthesis,
1137: * etc.).
1138: */
1.1 kristaps 1139:
1.43 kristaps 1140: for (body = NULL; ; ) {
1.32 kristaps 1141: la = *pos;
1.119 schwarze 1142: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1143: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1144: break;
1145:
1.150 schwarze 1146: if (body == NULL && ac != ARGS_QWORD &&
1147: mdoc_isdelim(p) == DELIM_OPEN) {
1148: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1149: continue;
1.123 schwarze 1150: }
1.1 kristaps 1151:
1.150 schwarze 1152: if (body == NULL)
1153: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1154:
1.153 schwarze 1155: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1156: break;
1.1 kristaps 1157: }
1.150 schwarze 1158: if (body == NULL)
1159: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1160:
1.83 schwarze 1161: /*
1162: * If there is an open sub-block requiring explicit close-out,
1.167 schwarze 1163: * postpone closing out the current block until the
1164: * rew_pending() call closing out the sub-block.
1.83 schwarze 1165: */
1.151 schwarze 1166:
1.119 schwarze 1167: for (n = mdoc->last; n && n != body && n != blk->parent;
1.131 schwarze 1168: n = n->parent) {
1.183 ! schwarze 1169: if (n->flags & MDOC_ENDED) {
! 1170: if ( ! (n->flags & MDOC_VALID))
! 1171: n->flags |= MDOC_BROKEN;
! 1172: continue;
! 1173: }
1.150 schwarze 1174: if (n->type == MDOC_BLOCK &&
1.183 ! schwarze 1175: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
! 1176: n->flags |= MDOC_BROKEN;
! 1177: if ( ! (body->flags & MDOC_ENDED)) {
! 1178: mandoc_vmsg(MANDOCERR_BLK_NEST,
! 1179: mdoc->parse, line, ppos,
! 1180: "%s breaks %s", mdoc_macronames[tok],
! 1181: mdoc_macronames[n->tok]);
! 1182: mdoc_endbody_alloc(mdoc, line, ppos,
! 1183: tok, body, ENDBODY_NOSPACE);
! 1184: }
1.83 schwarze 1185: }
1186: }
1.134 schwarze 1187: assert(n == body);
1.183 ! schwarze 1188: if (body->flags & MDOC_ENDED)
! 1189: return;
! 1190:
1.164 schwarze 1191: rew_last(mdoc, body);
1.150 schwarze 1192: if (nl)
1193: append_delims(mdoc, line, pos, buf);
1.166 schwarze 1194: rew_pending(mdoc, blk);
1.117 schwarze 1195:
1196: /* Move trailing .Ns out of scope. */
1197:
1198: for (n = body->child; n && n->next; n = n->next)
1199: /* Do nothing. */ ;
1.150 schwarze 1200: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1201: mdoc_node_relink(mdoc, n);
1.1 kristaps 1202: }
1203:
1.151 schwarze 1204: static void
1.1 kristaps 1205: blk_part_exp(MACRO_PROT_ARGS)
1206: {
1.60 kristaps 1207: int la, nl;
1.55 kristaps 1208: enum margserr ac;
1.43 kristaps 1209: struct mdoc_node *head; /* keep track of head */
1.1 kristaps 1210: char *p;
1211:
1.119 schwarze 1212: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1213:
1.43 kristaps 1214: /*
1215: * The opening of an explicit macro having zero or more leading
1216: * punctuation nodes; a head with optional single element (the
1217: * case of `Eo'); and a body that may be empty.
1218: */
1.32 kristaps 1219:
1.150 schwarze 1220: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163 schwarze 1221: head = NULL;
1222: for (;;) {
1.32 kristaps 1223: la = *pos;
1.119 schwarze 1224: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1225: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1226: break;
1.43 kristaps 1227:
1228: /* Flush out leading punctuation. */
1229:
1.150 schwarze 1230: if (head == NULL && ac != ARGS_QWORD &&
1231: mdoc_isdelim(p) == DELIM_OPEN) {
1232: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1233: continue;
1.123 schwarze 1234: }
1.43 kristaps 1235:
1.150 schwarze 1236: if (head == NULL) {
1237: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1238: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1239: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1240: rew_last(mdoc, head);
1241: mdoc_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1242: if (tok == MDOC_Eo)
1.43 kristaps 1243: continue;
1.1 kristaps 1244: }
1.43 kristaps 1245:
1.153 schwarze 1246: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1247: break;
1.1 kristaps 1248: }
1249:
1.43 kristaps 1250: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1251:
1.163 schwarze 1252: if (head == NULL) {
1253: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.150 schwarze 1254: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1255: }
1.150 schwarze 1256: if (nl)
1257: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1258: }
1259:
1.151 schwarze 1260: static void
1.1 kristaps 1261: in_line_argn(MACRO_PROT_ARGS)
1262: {
1.53 kristaps 1263: struct mdoc_arg *arg;
1264: char *p;
1.181 schwarze 1265: enum margserr ac;
1.53 kristaps 1266: enum mdoct ntok;
1.181 schwarze 1267: int state; /* arg#; -1: not yet open; -2: closed */
1268: int la, maxargs, nl;
1.1 kristaps 1269:
1.156 schwarze 1270: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1271:
1.46 kristaps 1272: /*
1273: * A line macro that has a fixed number of arguments (maxargs).
1274: * Only open the scope once the first non-leading-punctuation is
1275: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1276: * keep it open until the maximum number of arguments are
1277: * exhausted.
1278: */
1.1 kristaps 1279:
1280: switch (tok) {
1.131 schwarze 1281: case MDOC_Ap:
1.1 kristaps 1282: /* FALLTHROUGH */
1.131 schwarze 1283: case MDOC_Ns:
1.1 kristaps 1284: /* FALLTHROUGH */
1.131 schwarze 1285: case MDOC_Ux:
1.1 kristaps 1286: maxargs = 0;
1287: break;
1.131 schwarze 1288: case MDOC_Bx:
1.101 kristaps 1289: /* FALLTHROUGH */
1.132 schwarze 1290: case MDOC_Es:
1291: /* FALLTHROUGH */
1.131 schwarze 1292: case MDOC_Xr:
1.42 kristaps 1293: maxargs = 2;
1294: break;
1.1 kristaps 1295: default:
1296: maxargs = 1;
1297: break;
1298: }
1299:
1.152 schwarze 1300: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1301:
1.181 schwarze 1302: state = -1;
1.156 schwarze 1303: p = NULL;
1304: for (;;) {
1.32 kristaps 1305: la = *pos;
1.119 schwarze 1306: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181 schwarze 1307:
1308: if (ac == ARGS_WORD && state == -1 &&
1309: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1310: mdoc_isdelim(p) == DELIM_OPEN) {
1311: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1312: continue;
1313: }
1314:
1315: if (state == -1 && tok != MDOC_In &&
1316: tok != MDOC_St && tok != MDOC_Xr) {
1317: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1318: state = 0;
1319: }
1320:
1.156 schwarze 1321: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181 schwarze 1322: if (abs(state) < 2 && tok == MDOC_Pf)
1.156 schwarze 1323: mandoc_vmsg(MANDOCERR_PF_SKIP,
1324: mdoc->parse, line, ppos, "Pf %s",
1325: p == NULL ? "at eol" : p);
1.1 kristaps 1326: break;
1.156 schwarze 1327: }
1.1 kristaps 1328:
1.181 schwarze 1329: if (state == maxargs) {
1.149 schwarze 1330: rew_elem(mdoc, tok);
1.181 schwarze 1331: state = -2;
1.46 kristaps 1332: }
1333:
1.181 schwarze 1334: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.156 schwarze 1335: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1336:
1.150 schwarze 1337: if (ntok != MDOC_MAX) {
1.181 schwarze 1338: if (state >= 0) {
1.149 schwarze 1339: rew_elem(mdoc, tok);
1.181 schwarze 1340: state = -2;
1341: }
1.151 schwarze 1342: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1343: break;
1344: }
1345:
1.181 schwarze 1346: if (ac == ARGS_QWORD ||
1347: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1348: mdoc_isdelim(p) == DELIM_NONE) {
1349: if (state == -1) {
1350: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1351: state = 1;
1352: } else if (state >= 0)
1353: state++;
1354: } else if (state >= 0) {
1.149 schwarze 1355: rew_elem(mdoc, tok);
1.181 schwarze 1356: state = -2;
1.1 kristaps 1357: }
1.42 kristaps 1358:
1.150 schwarze 1359: dword(mdoc, line, la, p, DELIM_MAX,
1360: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1361: }
1362:
1.181 schwarze 1363: if (state == -1) {
1364: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1365: line, ppos, mdoc_macronames[tok]);
1366: return;
1.156 schwarze 1367: }
1.181 schwarze 1368:
1369: if (state == 0 && tok == MDOC_Pf)
1370: append_delims(mdoc, line, pos, buf);
1371: if (state >= 0)
1.149 schwarze 1372: rew_elem(mdoc, tok);
1.150 schwarze 1373: if (nl)
1374: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1375: }
1376:
1.151 schwarze 1377: static void
1.1 kristaps 1378: in_line_eoln(MACRO_PROT_ARGS)
1379: {
1.170 schwarze 1380: struct mdoc_node *n;
1381: struct mdoc_arg *arg;
1.1 kristaps 1382:
1.170 schwarze 1383: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1384: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1385: n = mdoc->last;
1386: if (mdoc->next == MDOC_NEXT_SIBLING)
1387: n = n->parent;
1388: if (n->tok == MDOC_Nm)
1389: rew_last(mdoc, mdoc->last->parent);
1.178 schwarze 1390: }
1391:
1.179 schwarze 1392: if (buf[*pos] == '\0' &&
1393: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178 schwarze 1394: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179 schwarze 1395: line, ppos, mdoc_macronames[tok]);
1.178 schwarze 1396: return;
1.170 schwarze 1397: }
1.90 schwarze 1398:
1.152 schwarze 1399: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1400: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1401: if (parse_rest(mdoc, tok, line, pos, buf))
1402: return;
1403: rew_elem(mdoc, tok);
1404: }
1405:
1406: /*
1407: * The simplest argument parser available: Parse the remaining
1408: * words until the end of the phrase or line and return 0
1409: * or until the next macro, call that macro, and return 1.
1410: */
1411: static int
1412: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1413: {
1414: int la;
1.1 kristaps 1415:
1416: for (;;) {
1417: la = *pos;
1.153 schwarze 1418: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1419: return(0);
1.153 schwarze 1420: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1421: return(1);
1.1 kristaps 1422: }
1423: }
1424:
1.151 schwarze 1425: static void
1.41 kristaps 1426: ctx_synopsis(MACRO_PROT_ARGS)
1427: {
1.60 kristaps 1428:
1.151 schwarze 1429: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1430: in_line(mdoc, tok, line, ppos, pos, buf);
1431: else if (tok == MDOC_Nm)
1432: blk_full(mdoc, tok, line, ppos, pos, buf);
1433: else {
1434: assert(tok == MDOC_Vt);
1435: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1436: }
1.1 kristaps 1437: }
1438:
1.24 kristaps 1439: /*
1440: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1441: * They're unusual because they're basically free-form text until a
1442: * macro is encountered.
1443: */
1.151 schwarze 1444: static void
1.75 kristaps 1445: phrase_ta(MACRO_PROT_ARGS)
1446: {
1.167 schwarze 1447: struct mdoc_node *body, *n;
1.75 kristaps 1448:
1.121 schwarze 1449: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1450:
1.167 schwarze 1451: body = NULL;
1452: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 ! schwarze 1453: if (n->flags & MDOC_ENDED)
1.167 schwarze 1454: continue;
1455: if (n->tok == MDOC_It && n->type == MDOC_BODY)
1456: body = n;
1457: if (n->tok == MDOC_Bl)
1458: break;
1459: }
1460:
1.151 schwarze 1461: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1462: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1463: line, ppos, "Ta");
1.151 schwarze 1464: return;
1.121 schwarze 1465: }
1.75 kristaps 1466:
1.121 schwarze 1467: /* Advance to the next column. */
1.150 schwarze 1468:
1.167 schwarze 1469: rew_last(mdoc, body);
1.150 schwarze 1470: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 schwarze 1471: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1472: }
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