Annotation of mandoc/mdoc_macro.c, Revision 1.184
1.184 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.183 2015/02/12 12:24:33 schwarze Exp $ */
1.1 kristaps 2: /*
1.116 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.162 schwarze 4: * Copyright (c) 2010, 2012-2015 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
1.8 kristaps 7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 9: *
1.184 ! schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.8 kristaps 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.184 ! schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.8 kristaps 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 17: */
1.40 kristaps 18: #include "config.h"
1.140 schwarze 19:
20: #include <sys/types.h>
1.40 kristaps 21:
1.1 kristaps 22: #include <assert.h>
23: #include <ctype.h>
24: #include <stdlib.h>
25: #include <stdio.h>
26: #include <string.h>
1.38 kristaps 27: #include <time.h>
1.1 kristaps 28:
1.184 ! schwarze 29: #include "mandoc.h"
! 30: #include "roff.h"
1.106 kristaps 31: #include "mdoc.h"
1.184 ! schwarze 32: #include "libmandoc.h"
1.1 kristaps 33: #include "libmdoc.h"
34:
1.151 schwarze 35: static void blk_full(MACRO_PROT_ARGS);
36: static void blk_exp_close(MACRO_PROT_ARGS);
37: static void blk_part_exp(MACRO_PROT_ARGS);
38: static void blk_part_imp(MACRO_PROT_ARGS);
39: static void ctx_synopsis(MACRO_PROT_ARGS);
40: static void in_line_eoln(MACRO_PROT_ARGS);
41: static void in_line_argn(MACRO_PROT_ARGS);
42: static void in_line(MACRO_PROT_ARGS);
43: static void phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 44:
1.150 schwarze 45: static void dword(struct mdoc *, int, int, const char *,
1.123 schwarze 46: enum mdelim, int);
1.150 schwarze 47: static void append_delims(struct mdoc *, int, int *, char *);
1.155 schwarze 48: static enum mdoct lookup(struct mdoc *, enum mdoct,
49: int, int, const char *);
1.153 schwarze 50: static int macro_or_word(MACRO_PROT_ARGS, int);
1.154 schwarze 51: static int parse_rest(struct mdoc *, enum mdoct,
52: int, int *, char *);
1.131 schwarze 53: static enum mdoct rew_alt(enum mdoct);
1.149 schwarze 54: static void rew_elem(struct mdoc *, enum mdoct);
55: static void rew_last(struct mdoc *, const struct mdoc_node *);
1.166 schwarze 56: static void rew_pending(struct mdoc *, const struct mdoc_node *);
1.1 kristaps 57:
58: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123 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 */
1.123 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 */
1.123 schwarze 69: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 70: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123 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 */
1.129 schwarze 76: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 77: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123 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 */
1.123 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 */
1.123 schwarze 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128 schwarze 87: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18 kristaps 88: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123 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 */
1.132 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 */
1.123 schwarze 96: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123 schwarze 98: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 99: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123 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 */
1.123 schwarze 106: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 107: { in_line_eoln, 0 }, /* %P */
1.123 schwarze 108: { in_line_eoln, MDOC_JOIN }, /* %R */
109: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 110: { in_line_eoln, 0 }, /* %V */
1.123 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 */
1.123 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 */
1.123 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 */
1.11 kristaps 136: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144 schwarze 137: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123 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 */
1.123 schwarze 142: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
143: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52 kristaps 144: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123 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 */
1.123 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 */
1.147 schwarze 161: { in_line_argn, 0 }, /* Sm */
1.123 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 */
1.123 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 */
1.123 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 */
1.123 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 */
1.132 schwarze 179: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 180: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 181: { in_line, 0 }, /* Lb */
1.123 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 */
1.132 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 */
1.123 schwarze 194: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20 kristaps 195: { in_line_eoln, 0 }, /* br */
196: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 197: { in_line_eoln, 0 }, /* %U */
1.123 schwarze 198: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143 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: */
1.151 schwarze 210: void
1.119 schwarze 211: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 212: {
213: struct mdoc_node *n;
214:
215: /* Scan for open explicit scopes. */
216:
1.151 schwarze 217: n = mdoc->last->flags & MDOC_VALID ?
1.131 schwarze 218: mdoc->last->parent : mdoc->last;
1.1 kristaps 219:
1.94 schwarze 220: for ( ; n; n = n->parent)
1.184 ! schwarze 221: if (n->type == ROFFT_BLOCK &&
1.151 schwarze 222: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137 schwarze 223: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
224: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 225:
1.32 kristaps 226: /* Rewind to the first. */
227:
1.149 schwarze 228: rew_last(mdoc, mdoc->first);
1.1 kristaps 229: }
230:
1.32 kristaps 231: /*
1.153 schwarze 232: * Look up the macro at *p called by "from",
233: * or as a line macro if from == MDOC_MAX.
1.32 kristaps 234: */
1.53 kristaps 235: static enum mdoct
1.155 schwarze 236: lookup(struct mdoc *mdoc, enum mdoct from, int line, int ppos, const char *p)
1.28 kristaps 237: {
1.58 kristaps 238: enum mdoct res;
1.1 kristaps 239:
1.153 schwarze 240: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
241: res = mdoc_hash_find(p);
1.155 schwarze 242: if (res != MDOC_MAX) {
243: if (mdoc_macros[res].flags & MDOC_CALLABLE)
244: return(res);
245: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
246: mandoc_msg(MANDOCERR_MACRO_CALL,
247: mdoc->parse, line, ppos, p);
248: }
1.153 schwarze 249: }
1.1 kristaps 250: return(MDOC_MAX);
251: }
252:
1.166 schwarze 253: /*
254: * Rewind up to and including a specific node.
255: */
1.149 schwarze 256: static void
1.32 kristaps 257: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 258: {
1.100 kristaps 259: struct mdoc_node *n, *np;
1.1 kristaps 260:
261: assert(to);
262: mdoc->next = MDOC_NEXT_SIBLING;
263: while (mdoc->last != to) {
1.100 kristaps 264: /*
265: * Save the parent here, because we may delete the
1.119 schwarze 266: * mdoc->last node in the post-validation phase and reset
267: * it to mdoc->last->parent, causing a step in the closing
1.100 kristaps 268: * out to be lost.
269: */
270: np = mdoc->last->parent;
1.149 schwarze 271: mdoc_valid_post(mdoc);
1.99 kristaps 272: n = mdoc->last;
1.100 kristaps 273: mdoc->last = np;
1.1 kristaps 274: assert(mdoc->last);
1.99 kristaps 275: mdoc->last->last = n;
1.1 kristaps 276: }
1.149 schwarze 277: mdoc_valid_post(mdoc);
1.1 kristaps 278: }
279:
1.32 kristaps 280: /*
1.166 schwarze 281: * Rewind up to a specific block, including all blocks that broke it.
282: */
283: static void
284: rew_pending(struct mdoc *mdoc, const struct mdoc_node *n)
285: {
286:
1.183 schwarze 287: for (;;) {
288: rew_last(mdoc, n);
289:
290: switch (n->type) {
1.184 ! schwarze 291: case ROFFT_HEAD:
1.183 schwarze 292: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
293: return;
1.184 ! schwarze 294: case ROFFT_BLOCK:
1.183 schwarze 295: break;
296: default:
297: return;
298: }
1.166 schwarze 299:
1.183 schwarze 300: if ( ! (n->flags & MDOC_BROKEN))
301: return;
1.166 schwarze 302:
1.183 schwarze 303: for (;;) {
304: if ((n = n->parent) == NULL)
305: return;
306:
1.184 ! schwarze 307: if (n->type == ROFFT_BLOCK ||
! 308: n->type == ROFFT_HEAD) {
1.183 schwarze 309: if (n->flags & MDOC_ENDED)
310: break;
311: else
312: return;
313: }
314: }
1.166 schwarze 315: }
316: }
317:
318: /*
1.84 schwarze 319: * For a block closing macro, return the corresponding opening one.
320: * Otherwise, return the macro itself.
1.32 kristaps 321: */
1.47 kristaps 322: static enum mdoct
323: rew_alt(enum mdoct tok)
1.1 kristaps 324: {
325: switch (tok) {
1.131 schwarze 326: case MDOC_Ac:
1.1 kristaps 327: return(MDOC_Ao);
1.131 schwarze 328: case MDOC_Bc:
1.1 kristaps 329: return(MDOC_Bo);
1.131 schwarze 330: case MDOC_Brc:
1.1 kristaps 331: return(MDOC_Bro);
1.131 schwarze 332: case MDOC_Dc:
1.1 kristaps 333: return(MDOC_Do);
1.131 schwarze 334: case MDOC_Ec:
1.1 kristaps 335: return(MDOC_Eo);
1.131 schwarze 336: case MDOC_Ed:
1.1 kristaps 337: return(MDOC_Bd);
1.131 schwarze 338: case MDOC_Ef:
1.1 kristaps 339: return(MDOC_Bf);
1.131 schwarze 340: case MDOC_Ek:
1.1 kristaps 341: return(MDOC_Bk);
1.131 schwarze 342: case MDOC_El:
1.1 kristaps 343: return(MDOC_Bl);
1.131 schwarze 344: case MDOC_Fc:
1.1 kristaps 345: return(MDOC_Fo);
1.131 schwarze 346: case MDOC_Oc:
1.1 kristaps 347: return(MDOC_Oo);
1.131 schwarze 348: case MDOC_Pc:
1.1 kristaps 349: return(MDOC_Po);
1.131 schwarze 350: case MDOC_Qc:
1.1 kristaps 351: return(MDOC_Qo);
1.131 schwarze 352: case MDOC_Re:
1.1 kristaps 353: return(MDOC_Rs);
1.131 schwarze 354: case MDOC_Sc:
1.1 kristaps 355: return(MDOC_So);
1.131 schwarze 356: case MDOC_Xc:
1.1 kristaps 357: return(MDOC_Xo);
358: default:
1.84 schwarze 359: return(tok);
1.1 kristaps 360: }
361: /* NOTREACHED */
362: }
363:
1.149 schwarze 364: static void
1.47 kristaps 365: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 366: {
367: struct mdoc_node *n;
368:
369: n = mdoc->last;
1.184 ! schwarze 370: if (n->type != ROFFT_ELEM)
1.1 kristaps 371: n = n->parent;
1.184 ! schwarze 372: assert(n->type == ROFFT_ELEM);
1.1 kristaps 373: assert(tok == n->tok);
1.149 schwarze 374: rew_last(mdoc, n);
1.1 kristaps 375: }
376:
1.83 schwarze 377: /*
1.105 kristaps 378: * Allocate a word and check whether it's punctuation or not.
379: * Punctuation consists of those tokens found in mdoc_isdelim().
380: */
1.150 schwarze 381: static void
1.123 schwarze 382: dword(struct mdoc *mdoc, int line, int col, const char *p,
383: enum mdelim d, int may_append)
1.105 kristaps 384: {
1.131 schwarze 385:
1.150 schwarze 386: if (d == DELIM_MAX)
1.105 kristaps 387: d = mdoc_isdelim(p);
388:
1.123 schwarze 389: if (may_append &&
1.150 schwarze 390: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184 ! schwarze 391: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150 schwarze 392: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123 schwarze 393: mdoc_word_append(mdoc, p);
1.150 schwarze 394: return;
1.123 schwarze 395: }
396:
1.150 schwarze 397: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 398:
1.108 schwarze 399: /*
1.144 schwarze 400: * If the word consists of a bare delimiter,
401: * flag the new node accordingly,
402: * unless doing so was vetoed by the invoking macro.
403: * Always clear the veto, it is only valid for one word.
1.108 schwarze 404: */
405:
1.144 schwarze 406: if (d == DELIM_OPEN)
407: mdoc->last->flags |= MDOC_DELIMO;
408: else if (d == DELIM_CLOSE &&
409: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 410: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 411: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 412: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 413: }
1.1 kristaps 414:
1.150 schwarze 415: static void
1.119 schwarze 416: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 417: {
1.153 schwarze 418: char *p;
1.66 kristaps 419: int la;
1.1 kristaps 420:
1.150 schwarze 421: if (buf[*pos] == '\0')
422: return;
1.1 kristaps 423:
424: for (;;) {
1.66 kristaps 425: la = *pos;
1.153 schwarze 426: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 427: break;
1.123 schwarze 428: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 429:
430: /*
431: * If we encounter end-of-sentence symbols, then trigger
432: * the double-space.
433: *
1.109 kristaps 434: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 435: * the last symbol, such that `. )' will cause the
436: * correct double-spacing. However, (1) groff isn't
437: * smart enough to do this and (2) it would require
438: * knowing which symbols break this behaviour, for
1.109 kristaps 439: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 440: */
1.150 schwarze 441:
1.127 schwarze 442: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 443: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 444: }
445: }
446:
447: /*
1.153 schwarze 448: * Parse one word.
449: * If it is a macro, call it and return 1.
450: * Otherwise, allocate it and return 0.
451: */
452: static int
453: macro_or_word(MACRO_PROT_ARGS, int parsed)
454: {
455: char *p;
456: enum mdoct ntok;
457:
458: p = buf + ppos;
459: ntok = MDOC_MAX;
1.157 schwarze 460: if (*p == '"')
1.153 schwarze 461: p++;
1.157 schwarze 462: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 463: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 464:
465: if (ntok == MDOC_MAX) {
466: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
467: mdoc_macros[tok].flags & MDOC_JOIN);
468: return(0);
469: } else {
470: if (mdoc_macros[tok].fp == in_line_eoln)
471: rew_elem(mdoc, tok);
472: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
473: if (tok == MDOC_MAX)
474: append_delims(mdoc, line, pos, buf);
475: return(1);
476: }
477: }
478:
479: /*
1.131 schwarze 480: * Close out block partial/full explicit.
1.1 kristaps 481: */
1.151 schwarze 482: static void
1.1 kristaps 483: blk_exp_close(MACRO_PROT_ARGS)
484: {
1.83 schwarze 485: struct mdoc_node *body; /* Our own body. */
1.148 schwarze 486: struct mdoc_node *endbody; /* Our own end marker. */
1.171 schwarze 487: struct mdoc_node *itblk; /* An It block starting later. */
1.83 schwarze 488: struct mdoc_node *later; /* A sub-block starting later. */
1.166 schwarze 489: struct mdoc_node *n; /* Search back to our block. */
1.83 schwarze 490:
1.171 schwarze 491: int j, lastarg, maxargs, nl;
1.55 kristaps 492: enum margserr ac;
1.83 schwarze 493: enum mdoct atok, ntok;
1.1 kristaps 494: char *p;
495:
1.119 schwarze 496: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 497:
1.1 kristaps 498: switch (tok) {
1.131 schwarze 499: case MDOC_Ec:
1.1 kristaps 500: maxargs = 1;
501: break;
1.131 schwarze 502: case MDOC_Ek:
1.125 schwarze 503: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 504: /* FALLTHROUGH */
1.1 kristaps 505: default:
506: maxargs = 0;
507: break;
508: }
509:
1.83 schwarze 510: /*
511: * Search backwards for beginnings of blocks,
512: * both of our own and of pending sub-blocks.
513: */
1.151 schwarze 514:
1.83 schwarze 515: atok = rew_alt(tok);
1.171 schwarze 516: body = endbody = itblk = later = NULL;
1.119 schwarze 517: for (n = mdoc->last; n; n = n->parent) {
1.183 schwarze 518: if (n->flags & MDOC_ENDED) {
519: if ( ! (n->flags & MDOC_VALID))
520: n->flags |= MDOC_BROKEN;
1.83 schwarze 521: continue;
1.183 schwarze 522: }
1.83 schwarze 523:
524: /* Remember the start of our own body. */
1.151 schwarze 525:
1.184 ! schwarze 526: if (n->type == ROFFT_BODY && atok == n->tok) {
1.175 schwarze 527: if (n->end == ENDBODY_NOT)
1.83 schwarze 528: body = n;
529: continue;
530: }
531:
1.184 ! schwarze 532: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 533: continue;
1.160 schwarze 534:
535: if (n->tok == MDOC_It) {
1.171 schwarze 536: itblk = n;
1.160 schwarze 537: continue;
538: }
539:
1.83 schwarze 540: if (atok == n->tok) {
541: assert(body);
542:
543: /*
544: * Found the start of our own block.
545: * When there is no pending sub block,
546: * just proceed to closing out.
547: */
1.151 schwarze 548:
1.160 schwarze 549: if (later == NULL ||
1.171 schwarze 550: (tok == MDOC_El && itblk == NULL))
1.83 schwarze 551: break;
552:
1.131 schwarze 553: /*
1.167 schwarze 554: * When there is a pending sub block, postpone
555: * closing out the current block until the
556: * rew_pending() closing out the sub-block.
1.83 schwarze 557: * Mark the place where the formatting - but not
558: * the scope - of the current block ends.
559: */
1.151 schwarze 560:
1.183 schwarze 561: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
562: line, ppos, "%s breaks %s",
563: mdoc_macronames[atok],
564: mdoc_macronames[later->tok]);
565:
1.166 schwarze 566: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150 schwarze 567: atok, body, ENDBODY_SPACE);
1.151 schwarze 568:
1.183 schwarze 569: if (tok == MDOC_El)
570: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
571:
1.151 schwarze 572: /*
573: * If a block closing macro taking arguments
574: * breaks another block, put the arguments
1.166 schwarze 575: * into the end marker.
1.151 schwarze 576: */
577:
1.166 schwarze 578: if (maxargs)
1.148 schwarze 579: mdoc->next = MDOC_NEXT_CHILD;
1.83 schwarze 580: break;
1.182 schwarze 581: }
582:
583: /* Explicit blocks close out description lines. */
584:
585: if (n->tok == MDOC_Nd) {
586: rew_last(mdoc, n);
587: continue;
1.83 schwarze 588: }
589:
1.183 schwarze 590: /* Breaking an open sub block. */
1.151 schwarze 591:
1.183 schwarze 592: n->flags |= MDOC_BROKEN;
593: if (later == NULL)
1.83 schwarze 594: later = n;
595: }
1.166 schwarze 596:
597: if (body == NULL) {
598: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
599: line, ppos, mdoc_macronames[tok]);
600: if (maxargs && endbody == NULL) {
601: /*
602: * Stray .Ec without previous .Eo:
603: * Break the output line, keep the arguments.
604: */
605: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
606: rew_elem(mdoc, MDOC_br);
607: }
608: } else if (endbody == NULL) {
609: rew_last(mdoc, body);
610: if (maxargs)
611: mdoc_tail_alloc(mdoc, line, ppos, atok);
612: }
1.83 schwarze 613:
1.150 schwarze 614: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
615: if (buf[*pos] != '\0')
1.136 schwarze 616: mandoc_vmsg(MANDOCERR_ARG_SKIP,
617: mdoc->parse, line, ppos,
618: "%s %s", mdoc_macronames[tok],
619: buf + *pos);
1.171 schwarze 620: if (endbody == NULL && n != NULL)
1.167 schwarze 621: rew_pending(mdoc, n);
1.151 schwarze 622: return;
1.1 kristaps 623: }
624:
1.166 schwarze 625: if (endbody != NULL)
626: n = endbody;
1.148 schwarze 627: for (j = 0; ; j++) {
1.1 kristaps 628: lastarg = *pos;
629:
1.166 schwarze 630: if (j == maxargs && n != NULL) {
631: rew_pending(mdoc, n);
632: n = NULL;
1.1 kristaps 633: }
634:
1.119 schwarze 635: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 636: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 637: break;
638:
1.155 schwarze 639: ntok = ac == ARGS_QWORD ? MDOC_MAX :
640: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 641:
1.150 schwarze 642: if (ntok == MDOC_MAX) {
643: dword(mdoc, line, lastarg, p, DELIM_MAX,
644: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 645: continue;
646: }
1.1 kristaps 647:
1.166 schwarze 648: if (n != NULL) {
649: rew_pending(mdoc, n);
650: n = NULL;
1.54 kristaps 651: }
1.122 schwarze 652: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 653: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 654: break;
1.1 kristaps 655: }
656:
1.166 schwarze 657: if (n != NULL)
658: rew_pending(mdoc, n);
1.150 schwarze 659: if (nl)
660: append_delims(mdoc, line, pos, buf);
1.1 kristaps 661: }
662:
1.151 schwarze 663: static void
1.1 kristaps 664: in_line(MACRO_PROT_ARGS)
665: {
1.144 schwarze 666: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.53 kristaps 667: enum mdoct ntok;
1.55 kristaps 668: enum margserr ac;
1.67 schwarze 669: enum mdelim d;
1.53 kristaps 670: struct mdoc_arg *arg;
671: char *p;
1.1 kristaps 672:
1.119 schwarze 673: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 674:
1.4 kristaps 675: /*
676: * Whether we allow ignored elements (those without content,
677: * usually because of reserved words) to squeak by.
678: */
1.45 kristaps 679:
1.4 kristaps 680: switch (tok) {
1.131 schwarze 681: case MDOC_An:
1.26 kristaps 682: /* FALLTHROUGH */
1.131 schwarze 683: case MDOC_Ar:
1.4 kristaps 684: /* FALLTHROUGH */
1.131 schwarze 685: case MDOC_Fl:
1.4 kristaps 686: /* FALLTHROUGH */
1.131 schwarze 687: case MDOC_Mt:
1.12 kristaps 688: /* FALLTHROUGH */
1.131 schwarze 689: case MDOC_Nm:
1.26 kristaps 690: /* FALLTHROUGH */
1.131 schwarze 691: case MDOC_Pa:
1.4 kristaps 692: nc = 1;
693: break;
694: default:
695: nc = 0;
696: break;
697: }
698:
1.152 schwarze 699: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 700:
1.144 schwarze 701: d = DELIM_NONE;
702: firstarg = 1;
1.142 schwarze 703: mayopen = 1;
1.70 kristaps 704: for (cnt = scope = 0;; ) {
1.1 kristaps 705: la = *pos;
1.119 schwarze 706: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 707:
1.144 schwarze 708: /*
709: * At the end of a macro line,
710: * opening delimiters do not suppress spacing.
711: */
712:
713: if (ac == ARGS_EOLN) {
714: if (d == DELIM_OPEN)
715: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 716: break;
1.144 schwarze 717: }
718:
719: /*
720: * The rest of the macro line is only punctuation,
721: * to be handled by append_delims().
722: * If there were no other arguments,
723: * do not allow the first one to suppress spacing,
724: * even if it turns out to be a closing one.
725: */
726:
727: if (ac == ARGS_PUNCT) {
1.176 schwarze 728: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144 schwarze 729: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 730: break;
1.144 schwarze 731: }
1.1 kristaps 732:
1.145 schwarze 733: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155 schwarze 734: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 735:
1.131 schwarze 736: /*
1.4 kristaps 737: * In this case, we've located a submacro and must
738: * execute it. Close out scope, if open. If no
739: * elements have been generated, either create one (nc)
740: * or raise a warning.
741: */
1.1 kristaps 742:
1.150 schwarze 743: if (ntok != MDOC_MAX) {
1.149 schwarze 744: if (scope)
745: rew_elem(mdoc, tok);
1.150 schwarze 746: if (nc && ! cnt) {
747: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 748: rew_last(mdoc, mdoc->last);
1.150 schwarze 749: } else if ( ! nc && ! cnt) {
1.7 kristaps 750: mdoc_argv_free(arg);
1.135 schwarze 751: mandoc_msg(MANDOCERR_MACRO_EMPTY,
752: mdoc->parse, line, ppos,
753: mdoc_macronames[tok]);
1.7 kristaps 754: }
1.151 schwarze 755: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 756: if (nl)
757: append_delims(mdoc, line, pos, buf);
1.151 schwarze 758: return;
1.131 schwarze 759: }
1.1 kristaps 760:
1.131 schwarze 761: /*
1.4 kristaps 762: * Non-quote-enclosed punctuation. Set up our scope, if
763: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 764: * the word.
1.4 kristaps 765: */
1.1 kristaps 766:
1.150 schwarze 767: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 768:
1.70 kristaps 769: if (DELIM_NONE != d) {
770: /*
771: * If we encounter closing punctuation, no word
1.144 schwarze 772: * has been emitted, no scope is open, and we're
1.70 kristaps 773: * allowed to have an empty element, then start
1.142 schwarze 774: * a new scope.
1.70 kristaps 775: */
1.142 schwarze 776: if ((d == DELIM_CLOSE ||
777: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 778: !cnt && !scope && nc && mayopen) {
1.150 schwarze 779: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 780: scope = 1;
1.142 schwarze 781: cnt++;
1.150 schwarze 782: if (tok == MDOC_Nm)
1.142 schwarze 783: mayopen = 0;
1.70 kristaps 784: }
785: /*
786: * Close out our scope, if one is open, before
787: * any punctuation.
788: */
1.149 schwarze 789: if (scope)
790: rew_elem(mdoc, tok);
1.70 kristaps 791: scope = 0;
1.145 schwarze 792: if (tok == MDOC_Fn)
793: mayopen = 0;
1.142 schwarze 794: } else if (mayopen && !scope) {
1.150 schwarze 795: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 796: scope = 1;
1.142 schwarze 797: cnt++;
1.1 kristaps 798: }
1.105 kristaps 799:
1.150 schwarze 800: dword(mdoc, line, la, p, d,
801: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 802:
803: /*
1.144 schwarze 804: * If the first argument is a closing delimiter,
805: * do not suppress spacing before it.
806: */
807:
808: if (firstarg && d == DELIM_CLOSE && !nc)
809: mdoc->last->flags &= ~MDOC_DELIMC;
810: firstarg = 0;
811:
812: /*
1.39 kristaps 813: * `Fl' macros have their scope re-opened with each new
814: * word so that the `-' can be added to each one without
815: * having to parse out spaces.
816: */
1.150 schwarze 817: if (scope && tok == MDOC_Fl) {
1.149 schwarze 818: rew_elem(mdoc, tok);
1.70 kristaps 819: scope = 0;
1.39 kristaps 820: }
1.1 kristaps 821: }
822:
1.149 schwarze 823: if (scope)
824: rew_elem(mdoc, tok);
1.4 kristaps 825:
826: /*
827: * If no elements have been collected and we're allowed to have
828: * empties (nc), open a scope and close it out. Otherwise,
829: * raise a warning.
830: */
1.45 kristaps 831:
1.150 schwarze 832: if ( ! cnt) {
833: if (nc) {
834: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
835: rew_last(mdoc, mdoc->last);
836: } else {
837: mdoc_argv_free(arg);
838: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
839: line, ppos, mdoc_macronames[tok]);
840: }
1.7 kristaps 841: }
1.150 schwarze 842: if (nl)
843: append_delims(mdoc, line, pos, buf);
1.1 kristaps 844: }
845:
1.151 schwarze 846: static void
1.1 kristaps 847: blk_full(MACRO_PROT_ARGS)
848: {
1.153 schwarze 849: int la, nl, parsed;
1.1 kristaps 850: struct mdoc_arg *arg;
1.171 schwarze 851: struct mdoc_node *blk; /* Our own or a broken block. */
1.165 schwarze 852: struct mdoc_node *head; /* Our own head. */
853: struct mdoc_node *body; /* Our own body. */
1.47 kristaps 854: struct mdoc_node *n;
1.59 kristaps 855: enum margserr ac, lac;
1.1 kristaps 856: char *p;
857:
1.119 schwarze 858: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 859:
1.177 schwarze 860: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
861: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
862: line, ppos, mdoc_macronames[tok]);
863: return;
864: }
865:
1.171 schwarze 866: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
867:
868: /* Here, tok is one of Sh Ss Nm Nd It. */
869:
870: blk = NULL;
871: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 872: if (n->flags & MDOC_ENDED) {
873: if ( ! (n->flags & MDOC_VALID))
874: n->flags |= MDOC_BROKEN;
875: continue;
876: }
1.184 ! schwarze 877: if (n->type != ROFFT_BLOCK)
1.171 schwarze 878: continue;
1.183 schwarze 879:
1.171 schwarze 880: if (tok == MDOC_It && n->tok == MDOC_Bl) {
881: if (blk != NULL) {
882: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
883: mdoc->parse, line, ppos,
884: "It breaks %s",
885: mdoc_macronames[blk->tok]);
886: rew_pending(mdoc, blk);
887: }
888: break;
889: }
890:
891: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
892: switch (tok) {
893: case MDOC_Sh:
894: /* FALLTHROUGH */
895: case MDOC_Ss:
896: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
897: mdoc->parse, line, ppos,
898: "%s breaks %s",
899: mdoc_macronames[tok],
900: mdoc_macronames[n->tok]);
901: rew_pending(mdoc, n);
1.180 schwarze 902: n = mdoc->last;
1.171 schwarze 903: continue;
904: case MDOC_It:
905: /* Delay in case it's astray. */
906: blk = n;
907: continue;
908: default:
909: break;
910: }
911: break;
912: }
913:
914: /* Here, n is one of Sh Ss Nm Nd It. */
1.138 schwarze 915:
1.171 schwarze 916: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
917: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
918: (tok != MDOC_It && n->tok == MDOC_It)))))
1.138 schwarze 919: break;
1.171 schwarze 920:
921: /* Item breaking an explicit block. */
922:
923: if (blk != NULL) {
924: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
925: mdoc->parse, line, ppos,
926: "It breaks %s",
927: mdoc_macronames[blk->tok]);
928: rew_pending(mdoc, blk);
1.172 schwarze 929: blk = NULL;
1.171 schwarze 930: }
931:
932: /* Close out prior implicit scopes. */
933:
934: rew_last(mdoc, n);
935: }
936:
937: /* Skip items outside lists. */
938:
939: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138 schwarze 940: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
941: line, ppos, "It %s", buf + *pos);
1.150 schwarze 942: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 943: rew_elem(mdoc, MDOC_br);
1.151 schwarze 944: return;
1.138 schwarze 945: }
1.1 kristaps 946: }
947:
1.45 kristaps 948: /*
1.109 kristaps 949: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 950: * macro openings. Implicit ones first close out prior scope
951: * (seen above). Delay opening the head until necessary to
952: * allow leading punctuation to print. Special consideration
953: * for `It -column', which has phrase-part syntax instead of
954: * regular child nodes.
955: */
956:
1.152 schwarze 957: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 schwarze 958: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 959: head = body = NULL;
1.115 schwarze 960:
961: /*
962: * Exception: Heads of `It' macros in `-diag' lists are not
963: * parsed, even though `It' macros in general are parsed.
964: */
1.151 schwarze 965:
1.153 schwarze 966: parsed = tok != MDOC_It ||
967: mdoc->last->parent->tok != MDOC_Bl ||
968: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 969:
1.45 kristaps 970: /*
971: * The `Nd' macro has all arguments in its body: it's a hybrid
972: * of block partial-explicit and full-implicit. Stupid.
973: */
1.19 kristaps 974:
1.150 schwarze 975: if (tok == MDOC_Nd) {
976: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 977: rew_last(mdoc, head);
1.150 schwarze 978: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 979: }
980:
1.150 schwarze 981: if (tok == MDOC_Bk)
1.123 schwarze 982: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 983:
1.150 schwarze 984: ac = ARGS_PEND;
985: for (;;) {
1.45 kristaps 986: la = *pos;
1.150 schwarze 987: lac = ac;
1.119 schwarze 988: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 989: if (ac == ARGS_EOLN) {
990: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 991: break;
992: /*
993: * This is necessary: if the last token on a
994: * line is a `Ta' or tab, then we'll get
995: * ARGS_EOLN, so we must be smart enough to
996: * reopen our scope if the last parse was a
997: * phrase or partial phrase.
998: */
1.167 schwarze 999: if (body != NULL)
1000: rew_last(mdoc, body);
1.150 schwarze 1001: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1002: break;
1.75 kristaps 1003: }
1.174 schwarze 1004: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1005: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1006: mdoc->parse, line, la, "%s ... %s",
1007: mdoc_macronames[tok], buf + la);
1008: break;
1009: }
1.173 schwarze 1010: if (tok == MDOC_Rs) {
1011: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1012: line, la, "Rs %s", buf + la);
1013: break;
1014: }
1015: if (ac == ARGS_PUNCT)
1016: break;
1.45 kristaps 1017:
1.131 schwarze 1018: /*
1.73 kristaps 1019: * Emit leading punctuation (i.e., punctuation before
1.184 ! schwarze 1020: * the ROFFT_HEAD) for non-phrase types.
1.73 kristaps 1021: */
1.45 kristaps 1022:
1.150 schwarze 1023: if (head == NULL &&
1024: ac != ARGS_PEND &&
1025: ac != ARGS_PHRASE &&
1026: ac != ARGS_PPHRASE &&
1027: ac != ARGS_QWORD &&
1028: mdoc_isdelim(p) == DELIM_OPEN) {
1029: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1030: continue;
1031: }
1032:
1.74 kristaps 1033: /* Open a head if one hasn't been opened. */
1.45 kristaps 1034:
1.150 schwarze 1035: if (head == NULL)
1036: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1037:
1.150 schwarze 1038: if (ac == ARGS_PHRASE ||
1039: ac == ARGS_PEND ||
1040: ac == ARGS_PPHRASE) {
1.151 schwarze 1041:
1.73 kristaps 1042: /*
1.74 kristaps 1043: * If we haven't opened a body yet, rewind the
1044: * head; if we have, rewind that instead.
1045: */
1046:
1.167 schwarze 1047: rew_last(mdoc, body == NULL ? head : body);
1.150 schwarze 1048: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1049:
1050: /*
1.73 kristaps 1051: * Process phrases: set whether we're in a
1052: * partial-phrase (this effects line handling)
1053: * then call down into the phrase parser.
1054: */
1.74 kristaps 1055:
1.150 schwarze 1056: if (ac == ARGS_PPHRASE)
1.119 schwarze 1057: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1058: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1059: mdoc->flags |= MDOC_PPHRASE;
1.154 schwarze 1060: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1061: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1062: continue;
1063: }
1064:
1.153 schwarze 1065: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1066: break;
1.45 kristaps 1067: }
1.1 kristaps 1068:
1.165 schwarze 1069: if (blk->flags & MDOC_VALID)
1070: return;
1.150 schwarze 1071: if (head == NULL)
1072: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.174 schwarze 1073: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150 schwarze 1074: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1075: if (body != NULL)
1.77 kristaps 1076: goto out;
1.19 kristaps 1077:
1.47 kristaps 1078: /*
1.49 kristaps 1079: * If there is an open (i.e., unvalidated) sub-block requiring
1080: * explicit close-out, postpone switching the current block from
1.167 schwarze 1081: * head to body until the rew_pending() call closing out that
1.49 kristaps 1082: * sub-block.
1.47 kristaps 1083: */
1.119 schwarze 1084: for (n = mdoc->last; n && n != head; n = n->parent) {
1.183 schwarze 1085: if (n->flags & MDOC_ENDED) {
1086: if ( ! (n->flags & MDOC_VALID))
1087: n->flags |= MDOC_BROKEN;
1088: continue;
1089: }
1.184 ! schwarze 1090: if (n->type == ROFFT_BLOCK &&
1.183 schwarze 1091: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
1092: n->flags = MDOC_BROKEN;
1093: head->flags = MDOC_ENDED;
1.47 kristaps 1094: }
1095: }
1.183 schwarze 1096: if (head->flags & MDOC_ENDED)
1097: return;
1.47 kristaps 1098:
1.45 kristaps 1099: /* Close out scopes to remain in a consistent state. */
1100:
1.167 schwarze 1101: rew_last(mdoc, head);
1102: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1103: out:
1.150 schwarze 1104: if (mdoc->flags & MDOC_FREECOL) {
1.167 schwarze 1105: rew_last(mdoc, body);
1106: rew_last(mdoc, blk);
1.150 schwarze 1107: mdoc->flags &= ~MDOC_FREECOL;
1108: }
1.1 kristaps 1109: }
1110:
1.151 schwarze 1111: static void
1.1 kristaps 1112: blk_part_imp(MACRO_PROT_ARGS)
1113: {
1.63 kristaps 1114: int la, nl;
1.55 kristaps 1115: enum margserr ac;
1.1 kristaps 1116: char *p;
1.43 kristaps 1117: struct mdoc_node *blk; /* saved block context */
1118: struct mdoc_node *body; /* saved body context */
1119: struct mdoc_node *n;
1.1 kristaps 1120:
1.119 schwarze 1121: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1122:
1.43 kristaps 1123: /*
1124: * A macro that spans to the end of the line. This is generally
1125: * (but not necessarily) called as the first macro. The block
1126: * has a head as the immediate child, which is always empty,
1127: * followed by zero or more opening punctuation nodes, then the
1128: * body (which may be empty, depending on the macro), then zero
1129: * or more closing punctuation nodes.
1130: */
1.32 kristaps 1131:
1.150 schwarze 1132: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.162 schwarze 1133: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1134:
1.43 kristaps 1135: /*
1136: * Open the body scope "on-demand", that is, after we've
1137: * processed all our the leading delimiters (open parenthesis,
1138: * etc.).
1139: */
1.1 kristaps 1140:
1.43 kristaps 1141: for (body = NULL; ; ) {
1.32 kristaps 1142: la = *pos;
1.119 schwarze 1143: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1144: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1145: break;
1146:
1.150 schwarze 1147: if (body == NULL && ac != ARGS_QWORD &&
1148: mdoc_isdelim(p) == DELIM_OPEN) {
1149: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1150: continue;
1.123 schwarze 1151: }
1.1 kristaps 1152:
1.150 schwarze 1153: if (body == NULL)
1154: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1155:
1.153 schwarze 1156: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1157: break;
1.1 kristaps 1158: }
1.150 schwarze 1159: if (body == NULL)
1160: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1161:
1.83 schwarze 1162: /*
1163: * If there is an open sub-block requiring explicit close-out,
1.167 schwarze 1164: * postpone closing out the current block until the
1165: * rew_pending() call closing out the sub-block.
1.83 schwarze 1166: */
1.151 schwarze 1167:
1.119 schwarze 1168: for (n = mdoc->last; n && n != body && n != blk->parent;
1.131 schwarze 1169: n = n->parent) {
1.183 schwarze 1170: if (n->flags & MDOC_ENDED) {
1171: if ( ! (n->flags & MDOC_VALID))
1172: n->flags |= MDOC_BROKEN;
1173: continue;
1174: }
1.184 ! schwarze 1175: if (n->type == ROFFT_BLOCK &&
1.183 schwarze 1176: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
1177: n->flags |= MDOC_BROKEN;
1178: if ( ! (body->flags & MDOC_ENDED)) {
1179: mandoc_vmsg(MANDOCERR_BLK_NEST,
1180: mdoc->parse, line, ppos,
1181: "%s breaks %s", mdoc_macronames[tok],
1182: mdoc_macronames[n->tok]);
1183: mdoc_endbody_alloc(mdoc, line, ppos,
1184: tok, body, ENDBODY_NOSPACE);
1185: }
1.83 schwarze 1186: }
1187: }
1.134 schwarze 1188: assert(n == body);
1.183 schwarze 1189: if (body->flags & MDOC_ENDED)
1190: return;
1191:
1.164 schwarze 1192: rew_last(mdoc, body);
1.150 schwarze 1193: if (nl)
1194: append_delims(mdoc, line, pos, buf);
1.166 schwarze 1195: rew_pending(mdoc, blk);
1.117 schwarze 1196:
1197: /* Move trailing .Ns out of scope. */
1198:
1199: for (n = body->child; n && n->next; n = n->next)
1200: /* Do nothing. */ ;
1.150 schwarze 1201: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1202: mdoc_node_relink(mdoc, n);
1.1 kristaps 1203: }
1204:
1.151 schwarze 1205: static void
1.1 kristaps 1206: blk_part_exp(MACRO_PROT_ARGS)
1207: {
1.60 kristaps 1208: int la, nl;
1.55 kristaps 1209: enum margserr ac;
1.43 kristaps 1210: struct mdoc_node *head; /* keep track of head */
1.1 kristaps 1211: char *p;
1212:
1.119 schwarze 1213: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1214:
1.43 kristaps 1215: /*
1216: * The opening of an explicit macro having zero or more leading
1217: * punctuation nodes; a head with optional single element (the
1218: * case of `Eo'); and a body that may be empty.
1219: */
1.32 kristaps 1220:
1.150 schwarze 1221: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163 schwarze 1222: head = NULL;
1223: for (;;) {
1.32 kristaps 1224: la = *pos;
1.119 schwarze 1225: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1226: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1227: break;
1.43 kristaps 1228:
1229: /* Flush out leading punctuation. */
1230:
1.150 schwarze 1231: if (head == NULL && ac != ARGS_QWORD &&
1232: mdoc_isdelim(p) == DELIM_OPEN) {
1233: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1234: continue;
1.123 schwarze 1235: }
1.43 kristaps 1236:
1.150 schwarze 1237: if (head == NULL) {
1238: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1239: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1240: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1241: rew_last(mdoc, head);
1242: mdoc_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1243: if (tok == MDOC_Eo)
1.43 kristaps 1244: continue;
1.1 kristaps 1245: }
1.43 kristaps 1246:
1.153 schwarze 1247: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1248: break;
1.1 kristaps 1249: }
1250:
1.43 kristaps 1251: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1252:
1.163 schwarze 1253: if (head == NULL) {
1254: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.150 schwarze 1255: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1256: }
1.150 schwarze 1257: if (nl)
1258: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1259: }
1260:
1.151 schwarze 1261: static void
1.1 kristaps 1262: in_line_argn(MACRO_PROT_ARGS)
1263: {
1.53 kristaps 1264: struct mdoc_arg *arg;
1265: char *p;
1.181 schwarze 1266: enum margserr ac;
1.53 kristaps 1267: enum mdoct ntok;
1.181 schwarze 1268: int state; /* arg#; -1: not yet open; -2: closed */
1269: int la, maxargs, nl;
1.1 kristaps 1270:
1.156 schwarze 1271: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1272:
1.46 kristaps 1273: /*
1274: * A line macro that has a fixed number of arguments (maxargs).
1275: * Only open the scope once the first non-leading-punctuation is
1276: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1277: * keep it open until the maximum number of arguments are
1278: * exhausted.
1279: */
1.1 kristaps 1280:
1281: switch (tok) {
1.131 schwarze 1282: case MDOC_Ap:
1.1 kristaps 1283: /* FALLTHROUGH */
1.131 schwarze 1284: case MDOC_Ns:
1.1 kristaps 1285: /* FALLTHROUGH */
1.131 schwarze 1286: case MDOC_Ux:
1.1 kristaps 1287: maxargs = 0;
1288: break;
1.131 schwarze 1289: case MDOC_Bx:
1.101 kristaps 1290: /* FALLTHROUGH */
1.132 schwarze 1291: case MDOC_Es:
1292: /* FALLTHROUGH */
1.131 schwarze 1293: case MDOC_Xr:
1.42 kristaps 1294: maxargs = 2;
1295: break;
1.1 kristaps 1296: default:
1297: maxargs = 1;
1298: break;
1299: }
1300:
1.152 schwarze 1301: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1302:
1.181 schwarze 1303: state = -1;
1.156 schwarze 1304: p = NULL;
1305: for (;;) {
1.32 kristaps 1306: la = *pos;
1.119 schwarze 1307: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181 schwarze 1308:
1309: if (ac == ARGS_WORD && state == -1 &&
1310: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1311: mdoc_isdelim(p) == DELIM_OPEN) {
1312: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1313: continue;
1314: }
1315:
1316: if (state == -1 && tok != MDOC_In &&
1317: tok != MDOC_St && tok != MDOC_Xr) {
1318: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1319: state = 0;
1320: }
1321:
1.156 schwarze 1322: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181 schwarze 1323: if (abs(state) < 2 && tok == MDOC_Pf)
1.156 schwarze 1324: mandoc_vmsg(MANDOCERR_PF_SKIP,
1325: mdoc->parse, line, ppos, "Pf %s",
1326: p == NULL ? "at eol" : p);
1.1 kristaps 1327: break;
1.156 schwarze 1328: }
1.1 kristaps 1329:
1.181 schwarze 1330: if (state == maxargs) {
1.149 schwarze 1331: rew_elem(mdoc, tok);
1.181 schwarze 1332: state = -2;
1.46 kristaps 1333: }
1334:
1.181 schwarze 1335: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.156 schwarze 1336: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1337:
1.150 schwarze 1338: if (ntok != MDOC_MAX) {
1.181 schwarze 1339: if (state >= 0) {
1.149 schwarze 1340: rew_elem(mdoc, tok);
1.181 schwarze 1341: state = -2;
1342: }
1.151 schwarze 1343: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1344: break;
1345: }
1346:
1.181 schwarze 1347: if (ac == ARGS_QWORD ||
1348: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1349: mdoc_isdelim(p) == DELIM_NONE) {
1350: if (state == -1) {
1351: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1352: state = 1;
1353: } else if (state >= 0)
1354: state++;
1355: } else if (state >= 0) {
1.149 schwarze 1356: rew_elem(mdoc, tok);
1.181 schwarze 1357: state = -2;
1.1 kristaps 1358: }
1.42 kristaps 1359:
1.150 schwarze 1360: dword(mdoc, line, la, p, DELIM_MAX,
1361: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1362: }
1363:
1.181 schwarze 1364: if (state == -1) {
1365: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1366: line, ppos, mdoc_macronames[tok]);
1367: return;
1.156 schwarze 1368: }
1.181 schwarze 1369:
1370: if (state == 0 && tok == MDOC_Pf)
1371: append_delims(mdoc, line, pos, buf);
1372: if (state >= 0)
1.149 schwarze 1373: rew_elem(mdoc, tok);
1.150 schwarze 1374: if (nl)
1375: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1376: }
1377:
1.151 schwarze 1378: static void
1.1 kristaps 1379: in_line_eoln(MACRO_PROT_ARGS)
1380: {
1.170 schwarze 1381: struct mdoc_node *n;
1382: struct mdoc_arg *arg;
1.1 kristaps 1383:
1.170 schwarze 1384: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1385: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1386: n = mdoc->last;
1387: if (mdoc->next == MDOC_NEXT_SIBLING)
1388: n = n->parent;
1389: if (n->tok == MDOC_Nm)
1390: rew_last(mdoc, mdoc->last->parent);
1.178 schwarze 1391: }
1392:
1.179 schwarze 1393: if (buf[*pos] == '\0' &&
1394: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178 schwarze 1395: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179 schwarze 1396: line, ppos, mdoc_macronames[tok]);
1.178 schwarze 1397: return;
1.170 schwarze 1398: }
1.90 schwarze 1399:
1.152 schwarze 1400: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1401: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1402: if (parse_rest(mdoc, tok, line, pos, buf))
1403: return;
1404: rew_elem(mdoc, tok);
1405: }
1406:
1407: /*
1408: * The simplest argument parser available: Parse the remaining
1409: * words until the end of the phrase or line and return 0
1410: * or until the next macro, call that macro, and return 1.
1411: */
1412: static int
1413: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1414: {
1415: int la;
1.1 kristaps 1416:
1417: for (;;) {
1418: la = *pos;
1.153 schwarze 1419: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1420: return(0);
1.153 schwarze 1421: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1422: return(1);
1.1 kristaps 1423: }
1424: }
1425:
1.151 schwarze 1426: static void
1.41 kristaps 1427: ctx_synopsis(MACRO_PROT_ARGS)
1428: {
1.60 kristaps 1429:
1.151 schwarze 1430: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1431: in_line(mdoc, tok, line, ppos, pos, buf);
1432: else if (tok == MDOC_Nm)
1433: blk_full(mdoc, tok, line, ppos, pos, buf);
1434: else {
1435: assert(tok == MDOC_Vt);
1436: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1437: }
1.1 kristaps 1438: }
1439:
1.24 kristaps 1440: /*
1441: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1442: * They're unusual because they're basically free-form text until a
1443: * macro is encountered.
1444: */
1.151 schwarze 1445: static void
1.75 kristaps 1446: phrase_ta(MACRO_PROT_ARGS)
1447: {
1.167 schwarze 1448: struct mdoc_node *body, *n;
1.75 kristaps 1449:
1.121 schwarze 1450: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1451:
1.167 schwarze 1452: body = NULL;
1453: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 1454: if (n->flags & MDOC_ENDED)
1.167 schwarze 1455: continue;
1.184 ! schwarze 1456: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167 schwarze 1457: body = n;
1458: if (n->tok == MDOC_Bl)
1459: break;
1460: }
1461:
1.151 schwarze 1462: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1463: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1464: line, ppos, "Ta");
1.151 schwarze 1465: return;
1.121 schwarze 1466: }
1.75 kristaps 1467:
1.121 schwarze 1468: /* Advance to the next column. */
1.150 schwarze 1469:
1.167 schwarze 1470: rew_last(mdoc, body);
1.150 schwarze 1471: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 schwarze 1472: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1473: }
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