Annotation of mandoc/mdoc_macro.c, Revision 1.172
1.172 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.171 2015/02/03 01:14:12 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);
1.168 schwarze 50: static void make_pending(struct mdoc *, struct mdoc_node *,
51: struct mdoc_node *, int, int);
1.154 schwarze 52: static int parse_rest(struct mdoc *, enum mdoct,
53: int, int *, char *);
1.131 schwarze 54: static enum mdoct rew_alt(enum mdoct);
1.149 schwarze 55: static void rew_elem(struct mdoc *, enum mdoct);
56: static void rew_last(struct mdoc *, const struct mdoc_node *);
1.166 schwarze 57: static void rew_pending(struct mdoc *, const struct mdoc_node *);
1.1 kristaps 58:
59: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123 schwarze 60: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 61: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
62: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
63: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123 schwarze 64: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
65: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
66: { in_line_eoln, 0 }, /* Pp */
67: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
68: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 69: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123 schwarze 70: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 71: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123 schwarze 72: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
73: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
74: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
75: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 76: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129 schwarze 77: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 78: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123 schwarze 79: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
81: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 82: { in_line_eoln, 0 }, /* Ex */
1.123 schwarze 83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
84: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123 schwarze 86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128 schwarze 88: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18 kristaps 89: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123 schwarze 90: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
91: { blk_full, MDOC_JOIN }, /* Nd */
92: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 93: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132 schwarze 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
96: { in_line_eoln, 0 }, /* Rv */
1.123 schwarze 97: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 98: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123 schwarze 99: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 100: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123 schwarze 101: { in_line_eoln, MDOC_JOIN }, /* %A */
102: { in_line_eoln, MDOC_JOIN }, /* %B */
103: { in_line_eoln, MDOC_JOIN }, /* %D */
104: { in_line_eoln, MDOC_JOIN }, /* %I */
105: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 106: { in_line_eoln, 0 }, /* %N */
1.123 schwarze 107: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 108: { in_line_eoln, 0 }, /* %P */
1.123 schwarze 109: { in_line_eoln, MDOC_JOIN }, /* %R */
110: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 111: { in_line_eoln, 0 }, /* %V */
1.123 schwarze 112: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
113: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
114: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
115: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
116: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 117: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123 schwarze 118: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
119: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
120: { blk_full, MDOC_EXPLICIT }, /* Bf */
121: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
122: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
123: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 124: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
125: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
126: { in_line_eoln, 0 }, /* Db */
1.123 schwarze 127: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
128: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
129: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
130: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
131: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
132: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
133: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
134: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 135: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
136: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 137: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144 schwarze 138: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123 schwarze 139: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
140: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123 schwarze 143: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
144: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52 kristaps 145: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123 schwarze 146: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
147: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
148: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
149: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
150: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
151: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
152: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
153: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
154: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
155: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 156: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123 schwarze 157: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
158: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
159: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
160: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
161: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147 schwarze 162: { in_line_argn, 0 }, /* Sm */
1.123 schwarze 163: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
164: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 165: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123 schwarze 166: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 167: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
168: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123 schwarze 169: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
170: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
171: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
172: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
173: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
174: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
175: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 176: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123 schwarze 177: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 178: { in_line_eoln, 0 }, /* Bt */
179: { in_line_eoln, 0 }, /* Hf */
1.132 schwarze 180: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 181: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 182: { in_line, 0 }, /* Lb */
1.123 schwarze 183: { in_line_eoln, 0 }, /* Lp */
184: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
185: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
186: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
187: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
188: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
189: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
190: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
191: { in_line_eoln, MDOC_JOIN }, /* %C */
1.132 schwarze 192: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
193: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 194: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123 schwarze 195: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20 kristaps 196: { in_line_eoln, 0 }, /* br */
197: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 198: { in_line_eoln, 0 }, /* %U */
1.123 schwarze 199: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143 schwarze 200: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 201: };
202:
203: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
204:
205:
206: /*
207: * This is called at the end of parsing. It must traverse up the tree,
208: * closing out open [implicit] scopes. Obviously, open explicit scopes
209: * are errors.
210: */
1.151 schwarze 211: void
1.119 schwarze 212: mdoc_macroend(struct mdoc *mdoc)
1.1 kristaps 213: {
214: struct mdoc_node *n;
215:
216: /* Scan for open explicit scopes. */
217:
1.151 schwarze 218: n = mdoc->last->flags & MDOC_VALID ?
1.131 schwarze 219: mdoc->last->parent : mdoc->last;
1.1 kristaps 220:
1.94 schwarze 221: for ( ; n; n = n->parent)
1.151 schwarze 222: if (n->type == MDOC_BLOCK &&
223: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137 schwarze 224: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
225: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 226:
1.32 kristaps 227: /* Rewind to the first. */
228:
1.149 schwarze 229: rew_last(mdoc, mdoc->first);
1.1 kristaps 230: }
231:
1.32 kristaps 232: /*
1.153 schwarze 233: * Look up the macro at *p called by "from",
234: * or as a line macro if from == MDOC_MAX.
1.32 kristaps 235: */
1.53 kristaps 236: static enum mdoct
1.155 schwarze 237: lookup(struct mdoc *mdoc, enum mdoct from, int line, int ppos, const char *p)
1.28 kristaps 238: {
1.58 kristaps 239: enum mdoct res;
1.1 kristaps 240:
1.153 schwarze 241: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
242: res = mdoc_hash_find(p);
1.155 schwarze 243: if (res != MDOC_MAX) {
244: if (mdoc_macros[res].flags & MDOC_CALLABLE)
245: return(res);
246: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
247: mandoc_msg(MANDOCERR_MACRO_CALL,
248: mdoc->parse, line, ppos, p);
249: }
1.153 schwarze 250: }
1.1 kristaps 251: return(MDOC_MAX);
252: }
253:
1.166 schwarze 254: /*
255: * Rewind up to and including a specific node.
256: */
1.149 schwarze 257: static void
1.32 kristaps 258: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1 kristaps 259: {
1.100 kristaps 260: struct mdoc_node *n, *np;
1.1 kristaps 261:
262: assert(to);
263: mdoc->next = MDOC_NEXT_SIBLING;
264: while (mdoc->last != to) {
1.166 schwarze 265: if ( ! (mdoc->last->flags & MDOC_VALID))
266: mdoc->last->lastline = to->lastline -
267: (mdoc->flags & MDOC_NEWLINE ? 1 : 0);
1.100 kristaps 268: /*
269: * Save the parent here, because we may delete the
1.119 schwarze 270: * mdoc->last node in the post-validation phase and reset
271: * it to mdoc->last->parent, causing a step in the closing
1.100 kristaps 272: * out to be lost.
273: */
274: np = mdoc->last->parent;
1.149 schwarze 275: mdoc_valid_post(mdoc);
1.99 kristaps 276: n = mdoc->last;
1.100 kristaps 277: mdoc->last = np;
1.1 kristaps 278: assert(mdoc->last);
1.99 kristaps 279: mdoc->last->last = n;
1.1 kristaps 280: }
1.149 schwarze 281: mdoc_valid_post(mdoc);
1.1 kristaps 282: }
283:
1.32 kristaps 284: /*
1.166 schwarze 285: * Rewind up to a specific block, including all blocks that broke it.
286: */
287: static void
288: rew_pending(struct mdoc *mdoc, const struct mdoc_node *n)
289: {
290:
291: rew_last(mdoc, n);
292:
293: if (n->type != MDOC_BLOCK)
294: return;
295:
296: while ((n = n->pending) != NULL) {
297: rew_last(mdoc, n);
298: if (n->type == MDOC_HEAD)
299: mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
300: }
301: }
302:
303: /*
1.84 schwarze 304: * For a block closing macro, return the corresponding opening one.
305: * Otherwise, return the macro itself.
1.32 kristaps 306: */
1.47 kristaps 307: static enum mdoct
308: rew_alt(enum mdoct tok)
1.1 kristaps 309: {
310: switch (tok) {
1.131 schwarze 311: case MDOC_Ac:
1.1 kristaps 312: return(MDOC_Ao);
1.131 schwarze 313: case MDOC_Bc:
1.1 kristaps 314: return(MDOC_Bo);
1.131 schwarze 315: case MDOC_Brc:
1.1 kristaps 316: return(MDOC_Bro);
1.131 schwarze 317: case MDOC_Dc:
1.1 kristaps 318: return(MDOC_Do);
1.131 schwarze 319: case MDOC_Ec:
1.1 kristaps 320: return(MDOC_Eo);
1.131 schwarze 321: case MDOC_Ed:
1.1 kristaps 322: return(MDOC_Bd);
1.131 schwarze 323: case MDOC_Ef:
1.1 kristaps 324: return(MDOC_Bf);
1.131 schwarze 325: case MDOC_Ek:
1.1 kristaps 326: return(MDOC_Bk);
1.131 schwarze 327: case MDOC_El:
1.1 kristaps 328: return(MDOC_Bl);
1.131 schwarze 329: case MDOC_Fc:
1.1 kristaps 330: return(MDOC_Fo);
1.131 schwarze 331: case MDOC_Oc:
1.1 kristaps 332: return(MDOC_Oo);
1.131 schwarze 333: case MDOC_Pc:
1.1 kristaps 334: return(MDOC_Po);
1.131 schwarze 335: case MDOC_Qc:
1.1 kristaps 336: return(MDOC_Qo);
1.131 schwarze 337: case MDOC_Re:
1.1 kristaps 338: return(MDOC_Rs);
1.131 schwarze 339: case MDOC_Sc:
1.1 kristaps 340: return(MDOC_So);
1.131 schwarze 341: case MDOC_Xc:
1.1 kristaps 342: return(MDOC_Xo);
343: default:
1.84 schwarze 344: return(tok);
1.1 kristaps 345: }
346: /* NOTREACHED */
347: }
348:
1.149 schwarze 349: static void
1.47 kristaps 350: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1 kristaps 351: {
352: struct mdoc_node *n;
353:
354: n = mdoc->last;
355: if (MDOC_ELEM != n->type)
356: n = n->parent;
357: assert(MDOC_ELEM == n->type);
358: assert(tok == n->tok);
1.149 schwarze 359: rew_last(mdoc, n);
1.1 kristaps 360: }
361:
1.83 schwarze 362: /*
1.168 schwarze 363: * We are trying to close the block *breaker,
1.83 schwarze 364: * but the child block *broken is still open.
1.168 schwarze 365: * Thus, postpone closing the *breaker
1.167 schwarze 366: * until the rew_pending() call closing *broken.
1.83 schwarze 367: */
1.168 schwarze 368: static void
369: make_pending(struct mdoc *mdoc, struct mdoc_node *breaker,
370: struct mdoc_node *broken, int line, int ppos)
1.83 schwarze 371: {
1.168 schwarze 372: struct mdoc_node *n;
1.83 schwarze 373:
1.169 schwarze 374: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse, line, ppos,
375: "%s breaks %s", mdoc_macronames[breaker->tok],
376: mdoc_macronames[broken->tok]);
1.168 schwarze 377:
1.169 schwarze 378: /*
379: * If the *broken block (Z) is already broken by a block (B)
380: * contained in the breaker (A), make the breaker pending
381: * on that inner breaker (B). Graphically,
382: *
383: * breaker=[A! broken=n=[B!->A (old broken=)[Z->B B] A] Z]
384: *
385: * In these graphics, "->" indicates the "pending" pointer and
386: * "!" indicates the MDOC_BREAK flag. Each of the cases gets
387: * one additional pointer (B->A) and one additional flag (A!).
388: */
1.83 schwarze 389:
1.169 schwarze 390: for (n = broken->parent; ; n = n->parent)
391: if (n == broken->pending)
1.168 schwarze 392: broken = n;
1.169 schwarze 393: else if (n == breaker)
394: break;
395:
396: /*
397: * Found the breaker.
398: *
399: * If another, outer breaker (X) is already pending on
400: * the *broken block (B), we must not clobber the link
401: * to the outer breaker, but make it pending on the new,
402: * now inner breaker (A). Graphically,
403: *
404: * [X! n=breaker=[A!->X broken=[B(->X)->A X] A] B].
405: */
1.83 schwarze 406:
1.169 schwarze 407: if (broken->pending != NULL) {
408: n = breaker;
1.83 schwarze 409:
410: /*
1.169 schwarze 411: * If the inner breaker (A) is already broken, too,
412: * it cannot take on the outer breaker (X) but must
413: * hand it on to its own breakers (Y). Graphically,
414: *
415: * [X! n=[Y!->X breaker=[A!->Y Y] broken=[B(->X)->A X] A] B]
1.83 schwarze 416: */
417:
1.169 schwarze 418: while (n->pending)
419: n = n->pending;
420: n->pending = broken->pending;
421: }
422:
423: /*
424: * Now we have reduced the situation to the simplest case:
425: * breaker=[A! broken=[B->A A] B].
426: */
1.158 schwarze 427:
1.169 schwarze 428: broken->pending = breaker;
429: breaker->flags |= MDOC_BREAK;
430: if (breaker->body != NULL)
431: breaker->body->flags |= MDOC_BREAK;
1.83 schwarze 432: }
433:
1.105 kristaps 434: /*
435: * Allocate a word and check whether it's punctuation or not.
436: * Punctuation consists of those tokens found in mdoc_isdelim().
437: */
1.150 schwarze 438: static void
1.123 schwarze 439: dword(struct mdoc *mdoc, int line, int col, const char *p,
440: enum mdelim d, int may_append)
1.105 kristaps 441: {
1.131 schwarze 442:
1.150 schwarze 443: if (d == DELIM_MAX)
1.105 kristaps 444: d = mdoc_isdelim(p);
445:
1.123 schwarze 446: if (may_append &&
1.150 schwarze 447: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
448: d == DELIM_NONE && mdoc->last->type == MDOC_TEXT &&
449: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123 schwarze 450: mdoc_word_append(mdoc, p);
1.150 schwarze 451: return;
1.123 schwarze 452: }
453:
1.150 schwarze 454: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 455:
1.108 schwarze 456: /*
1.144 schwarze 457: * If the word consists of a bare delimiter,
458: * flag the new node accordingly,
459: * unless doing so was vetoed by the invoking macro.
460: * Always clear the veto, it is only valid for one word.
1.108 schwarze 461: */
462:
1.144 schwarze 463: if (d == DELIM_OPEN)
464: mdoc->last->flags |= MDOC_DELIMO;
465: else if (d == DELIM_CLOSE &&
466: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 467: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 468: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 469: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 470: }
1.1 kristaps 471:
1.150 schwarze 472: static void
1.119 schwarze 473: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1 kristaps 474: {
1.153 schwarze 475: char *p;
1.66 kristaps 476: int la;
1.1 kristaps 477:
1.150 schwarze 478: if (buf[*pos] == '\0')
479: return;
1.1 kristaps 480:
481: for (;;) {
1.66 kristaps 482: la = *pos;
1.153 schwarze 483: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 484: break;
1.123 schwarze 485: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 486:
487: /*
488: * If we encounter end-of-sentence symbols, then trigger
489: * the double-space.
490: *
1.109 kristaps 491: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 492: * the last symbol, such that `. )' will cause the
493: * correct double-spacing. However, (1) groff isn't
494: * smart enough to do this and (2) it would require
495: * knowing which symbols break this behaviour, for
1.109 kristaps 496: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 497: */
1.150 schwarze 498:
1.127 schwarze 499: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 500: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 501: }
502: }
503:
504: /*
1.153 schwarze 505: * Parse one word.
506: * If it is a macro, call it and return 1.
507: * Otherwise, allocate it and return 0.
508: */
509: static int
510: macro_or_word(MACRO_PROT_ARGS, int parsed)
511: {
512: char *p;
513: enum mdoct ntok;
514:
515: p = buf + ppos;
516: ntok = MDOC_MAX;
1.157 schwarze 517: if (*p == '"')
1.153 schwarze 518: p++;
1.157 schwarze 519: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 520: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 521:
522: if (ntok == MDOC_MAX) {
523: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
524: mdoc_macros[tok].flags & MDOC_JOIN);
525: return(0);
526: } else {
527: if (mdoc_macros[tok].fp == in_line_eoln)
528: rew_elem(mdoc, tok);
529: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
530: if (tok == MDOC_MAX)
531: append_delims(mdoc, line, pos, buf);
532: return(1);
533: }
534: }
535:
536: /*
1.131 schwarze 537: * Close out block partial/full explicit.
1.1 kristaps 538: */
1.151 schwarze 539: static void
1.1 kristaps 540: blk_exp_close(MACRO_PROT_ARGS)
541: {
1.83 schwarze 542: struct mdoc_node *body; /* Our own body. */
1.148 schwarze 543: struct mdoc_node *endbody; /* Our own end marker. */
1.171 schwarze 544: struct mdoc_node *itblk; /* An It block starting later. */
1.83 schwarze 545: struct mdoc_node *later; /* A sub-block starting later. */
1.166 schwarze 546: struct mdoc_node *n; /* Search back to our block. */
1.83 schwarze 547:
1.171 schwarze 548: int j, lastarg, maxargs, nl;
1.55 kristaps 549: enum margserr ac;
1.83 schwarze 550: enum mdoct atok, ntok;
1.1 kristaps 551: char *p;
552:
1.119 schwarze 553: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 554:
1.1 kristaps 555: switch (tok) {
1.131 schwarze 556: case MDOC_Ec:
1.1 kristaps 557: maxargs = 1;
558: break;
1.131 schwarze 559: case MDOC_Ek:
1.125 schwarze 560: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 561: /* FALLTHROUGH */
1.1 kristaps 562: default:
563: maxargs = 0;
564: break;
565: }
566:
1.83 schwarze 567: /*
568: * Search backwards for beginnings of blocks,
569: * both of our own and of pending sub-blocks.
570: */
1.151 schwarze 571:
1.83 schwarze 572: atok = rew_alt(tok);
1.171 schwarze 573: body = endbody = itblk = later = NULL;
1.119 schwarze 574: for (n = mdoc->last; n; n = n->parent) {
1.161 schwarze 575: if (n->flags & (MDOC_VALID | MDOC_BREAK))
1.83 schwarze 576: continue;
577:
578: /* Remember the start of our own body. */
1.151 schwarze 579:
1.150 schwarze 580: if (n->type == MDOC_BODY && atok == n->tok) {
1.166 schwarze 581: if (n->end == ENDBODY_NOT) {
1.83 schwarze 582: body = n;
1.166 schwarze 583: n->lastline = line;
584: }
1.83 schwarze 585: continue;
586: }
587:
1.150 schwarze 588: if (n->type != MDOC_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 589: continue;
1.160 schwarze 590:
591: if (n->tok == MDOC_It) {
1.171 schwarze 592: itblk = n;
1.160 schwarze 593: continue;
594: }
595:
1.83 schwarze 596: if (atok == n->tok) {
1.166 schwarze 597: n->lastline = line;
1.83 schwarze 598: assert(body);
599:
600: /*
601: * Found the start of our own block.
602: * When there is no pending sub block,
603: * just proceed to closing out.
604: */
1.151 schwarze 605:
1.160 schwarze 606: if (later == NULL ||
1.171 schwarze 607: (tok == MDOC_El && itblk == NULL))
1.83 schwarze 608: break;
609:
1.131 schwarze 610: /*
1.167 schwarze 611: * When there is a pending sub block, postpone
612: * closing out the current block until the
613: * rew_pending() closing out the sub-block.
1.83 schwarze 614: */
1.151 schwarze 615:
1.168 schwarze 616: make_pending(mdoc, n, later, line, ppos);
1.171 schwarze 617: if (tok == MDOC_El)
618: itblk->flags |= MDOC_BREAK;
1.83 schwarze 619:
620: /*
621: * Mark the place where the formatting - but not
622: * the scope - of the current block ends.
623: */
1.151 schwarze 624:
1.166 schwarze 625: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150 schwarze 626: atok, body, ENDBODY_SPACE);
1.151 schwarze 627:
628: /*
629: * If a block closing macro taking arguments
630: * breaks another block, put the arguments
1.166 schwarze 631: * into the end marker.
1.151 schwarze 632: */
633:
1.166 schwarze 634: if (maxargs)
1.148 schwarze 635: mdoc->next = MDOC_NEXT_CHILD;
1.83 schwarze 636: break;
637: }
638:
639: /*
640: * When finding an open sub block, remember the last
641: * open explicit block, or, in case there are only
642: * implicit ones, the first open implicit block.
643: */
1.151 schwarze 644:
1.160 schwarze 645: if (later == NULL ||
646: ! (mdoc_macros[later->tok].flags & MDOC_EXPLICIT))
1.83 schwarze 647: later = n;
648: }
1.166 schwarze 649:
650: if (body == NULL) {
651: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
652: line, ppos, mdoc_macronames[tok]);
653: if (maxargs && endbody == NULL) {
654: /*
655: * Stray .Ec without previous .Eo:
656: * Break the output line, keep the arguments.
657: */
658: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
659: rew_elem(mdoc, MDOC_br);
660: }
661: } else if (endbody == NULL) {
662: rew_last(mdoc, body);
663: if (maxargs)
664: mdoc_tail_alloc(mdoc, line, ppos, atok);
665: }
1.83 schwarze 666:
1.150 schwarze 667: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
668: if (buf[*pos] != '\0')
1.136 schwarze 669: mandoc_vmsg(MANDOCERR_ARG_SKIP,
670: mdoc->parse, line, ppos,
671: "%s %s", mdoc_macronames[tok],
672: buf + *pos);
1.171 schwarze 673: if (endbody == NULL && n != NULL)
1.167 schwarze 674: rew_pending(mdoc, n);
1.151 schwarze 675: return;
1.1 kristaps 676: }
677:
1.166 schwarze 678: if (endbody != NULL)
679: n = endbody;
1.148 schwarze 680: for (j = 0; ; j++) {
1.1 kristaps 681: lastarg = *pos;
682:
1.166 schwarze 683: if (j == maxargs && n != NULL) {
684: rew_pending(mdoc, n);
685: n = NULL;
1.1 kristaps 686: }
687:
1.119 schwarze 688: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 689: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 690: break;
691:
1.155 schwarze 692: ntok = ac == ARGS_QWORD ? MDOC_MAX :
693: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 694:
1.150 schwarze 695: if (ntok == MDOC_MAX) {
696: dword(mdoc, line, lastarg, p, DELIM_MAX,
697: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 698: continue;
699: }
1.1 kristaps 700:
1.166 schwarze 701: if (n != NULL) {
702: rew_pending(mdoc, n);
703: n = NULL;
1.54 kristaps 704: }
1.122 schwarze 705: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 706: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 707: break;
1.1 kristaps 708: }
709:
1.166 schwarze 710: if (n != NULL)
711: rew_pending(mdoc, n);
1.150 schwarze 712: if (nl)
713: append_delims(mdoc, line, pos, buf);
1.1 kristaps 714: }
715:
1.151 schwarze 716: static void
1.1 kristaps 717: in_line(MACRO_PROT_ARGS)
718: {
1.144 schwarze 719: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.53 kristaps 720: enum mdoct ntok;
1.55 kristaps 721: enum margserr ac;
1.67 schwarze 722: enum mdelim d;
1.53 kristaps 723: struct mdoc_arg *arg;
724: char *p;
1.1 kristaps 725:
1.119 schwarze 726: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 727:
1.4 kristaps 728: /*
729: * Whether we allow ignored elements (those without content,
730: * usually because of reserved words) to squeak by.
731: */
1.45 kristaps 732:
1.4 kristaps 733: switch (tok) {
1.131 schwarze 734: case MDOC_An:
1.26 kristaps 735: /* FALLTHROUGH */
1.131 schwarze 736: case MDOC_Ar:
1.4 kristaps 737: /* FALLTHROUGH */
1.131 schwarze 738: case MDOC_Fl:
1.4 kristaps 739: /* FALLTHROUGH */
1.131 schwarze 740: case MDOC_Mt:
1.12 kristaps 741: /* FALLTHROUGH */
1.131 schwarze 742: case MDOC_Nm:
1.26 kristaps 743: /* FALLTHROUGH */
1.131 schwarze 744: case MDOC_Pa:
1.4 kristaps 745: nc = 1;
746: break;
747: default:
748: nc = 0;
749: break;
750: }
751:
1.152 schwarze 752: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 753:
1.144 schwarze 754: d = DELIM_NONE;
755: firstarg = 1;
1.142 schwarze 756: mayopen = 1;
1.70 kristaps 757: for (cnt = scope = 0;; ) {
1.1 kristaps 758: la = *pos;
1.119 schwarze 759: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 760:
1.144 schwarze 761: /*
762: * At the end of a macro line,
763: * opening delimiters do not suppress spacing.
764: */
765:
766: if (ac == ARGS_EOLN) {
767: if (d == DELIM_OPEN)
768: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 769: break;
1.144 schwarze 770: }
771:
772: /*
773: * The rest of the macro line is only punctuation,
774: * to be handled by append_delims().
775: * If there were no other arguments,
776: * do not allow the first one to suppress spacing,
777: * even if it turns out to be a closing one.
778: */
779:
780: if (ac == ARGS_PUNCT) {
781: if (cnt == 0 && nc == 0)
782: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 783: break;
1.144 schwarze 784: }
1.1 kristaps 785:
1.145 schwarze 786: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155 schwarze 787: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 788:
1.131 schwarze 789: /*
1.4 kristaps 790: * In this case, we've located a submacro and must
791: * execute it. Close out scope, if open. If no
792: * elements have been generated, either create one (nc)
793: * or raise a warning.
794: */
1.1 kristaps 795:
1.150 schwarze 796: if (ntok != MDOC_MAX) {
1.149 schwarze 797: if (scope)
798: rew_elem(mdoc, tok);
1.150 schwarze 799: if (nc && ! cnt) {
800: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 801: rew_last(mdoc, mdoc->last);
1.150 schwarze 802: } else if ( ! nc && ! cnt) {
1.7 kristaps 803: mdoc_argv_free(arg);
1.135 schwarze 804: mandoc_msg(MANDOCERR_MACRO_EMPTY,
805: mdoc->parse, line, ppos,
806: mdoc_macronames[tok]);
1.7 kristaps 807: }
1.151 schwarze 808: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 809: if (nl)
810: append_delims(mdoc, line, pos, buf);
1.151 schwarze 811: return;
1.131 schwarze 812: }
1.1 kristaps 813:
1.131 schwarze 814: /*
1.4 kristaps 815: * Non-quote-enclosed punctuation. Set up our scope, if
816: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 817: * the word.
1.4 kristaps 818: */
1.1 kristaps 819:
1.150 schwarze 820: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 821:
1.70 kristaps 822: if (DELIM_NONE != d) {
823: /*
824: * If we encounter closing punctuation, no word
1.144 schwarze 825: * has been emitted, no scope is open, and we're
1.70 kristaps 826: * allowed to have an empty element, then start
1.142 schwarze 827: * a new scope.
1.70 kristaps 828: */
1.142 schwarze 829: if ((d == DELIM_CLOSE ||
830: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 831: !cnt && !scope && nc && mayopen) {
1.150 schwarze 832: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 833: scope = 1;
1.142 schwarze 834: cnt++;
1.150 schwarze 835: if (tok == MDOC_Nm)
1.142 schwarze 836: mayopen = 0;
1.70 kristaps 837: }
838: /*
839: * Close out our scope, if one is open, before
840: * any punctuation.
841: */
1.149 schwarze 842: if (scope)
843: rew_elem(mdoc, tok);
1.70 kristaps 844: scope = 0;
1.145 schwarze 845: if (tok == MDOC_Fn)
846: mayopen = 0;
1.142 schwarze 847: } else if (mayopen && !scope) {
1.150 schwarze 848: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 849: scope = 1;
1.142 schwarze 850: cnt++;
1.1 kristaps 851: }
1.105 kristaps 852:
1.150 schwarze 853: dword(mdoc, line, la, p, d,
854: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 855:
856: /*
1.144 schwarze 857: * If the first argument is a closing delimiter,
858: * do not suppress spacing before it.
859: */
860:
861: if (firstarg && d == DELIM_CLOSE && !nc)
862: mdoc->last->flags &= ~MDOC_DELIMC;
863: firstarg = 0;
864:
865: /*
1.39 kristaps 866: * `Fl' macros have their scope re-opened with each new
867: * word so that the `-' can be added to each one without
868: * having to parse out spaces.
869: */
1.150 schwarze 870: if (scope && tok == MDOC_Fl) {
1.149 schwarze 871: rew_elem(mdoc, tok);
1.70 kristaps 872: scope = 0;
1.39 kristaps 873: }
1.1 kristaps 874: }
875:
1.149 schwarze 876: if (scope)
877: rew_elem(mdoc, tok);
1.4 kristaps 878:
879: /*
880: * If no elements have been collected and we're allowed to have
881: * empties (nc), open a scope and close it out. Otherwise,
882: * raise a warning.
883: */
1.45 kristaps 884:
1.150 schwarze 885: if ( ! cnt) {
886: if (nc) {
887: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
888: rew_last(mdoc, mdoc->last);
889: } else {
890: mdoc_argv_free(arg);
891: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
892: line, ppos, mdoc_macronames[tok]);
893: }
1.7 kristaps 894: }
1.150 schwarze 895: if (nl)
896: append_delims(mdoc, line, pos, buf);
1.1 kristaps 897: }
898:
1.151 schwarze 899: static void
1.1 kristaps 900: blk_full(MACRO_PROT_ARGS)
901: {
1.153 schwarze 902: int la, nl, parsed;
1.1 kristaps 903: struct mdoc_arg *arg;
1.171 schwarze 904: struct mdoc_node *blk; /* Our own or a broken block. */
1.165 schwarze 905: struct mdoc_node *head; /* Our own head. */
906: struct mdoc_node *body; /* Our own body. */
1.47 kristaps 907: struct mdoc_node *n;
1.59 kristaps 908: enum margserr ac, lac;
1.1 kristaps 909: char *p;
910:
1.119 schwarze 911: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 912:
1.171 schwarze 913: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
914:
915: /* Here, tok is one of Sh Ss Nm Nd It. */
916:
917: blk = NULL;
918: for (n = mdoc->last; n != NULL; n = n->parent) {
919: if (n->flags & (MDOC_VALID | MDOC_BREAK) ||
920: n->type != MDOC_BLOCK)
921: continue;
922: if (tok == MDOC_It && n->tok == MDOC_Bl) {
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);
929: }
930: break;
931: }
932:
933: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
934: switch (tok) {
935: case MDOC_Sh:
936: /* FALLTHROUGH */
937: case MDOC_Ss:
938: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
939: mdoc->parse, line, ppos,
940: "%s breaks %s",
941: mdoc_macronames[tok],
942: mdoc_macronames[n->tok]);
943: rew_pending(mdoc, n);
944: continue;
945: case MDOC_It:
946: /* Delay in case it's astray. */
947: blk = n;
948: continue;
949: default:
950: break;
951: }
952: break;
953: }
954:
955: /* Here, n is one of Sh Ss Nm Nd It. */
1.138 schwarze 956:
1.171 schwarze 957: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
958: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
959: (tok != MDOC_It && n->tok == MDOC_It)))))
1.138 schwarze 960: break;
1.171 schwarze 961:
962: /* Item breaking an explicit block. */
963:
964: if (blk != NULL) {
965: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
966: mdoc->parse, line, ppos,
967: "It breaks %s",
968: mdoc_macronames[blk->tok]);
969: rew_pending(mdoc, blk);
1.172 ! schwarze 970: blk = NULL;
1.171 schwarze 971: }
972:
973: /* Close out prior implicit scopes. */
974:
975: rew_last(mdoc, n);
976: }
977:
978: /* Skip items outside lists. */
979:
980: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138 schwarze 981: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
982: line, ppos, "It %s", buf + *pos);
1.150 schwarze 983: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 984: rew_elem(mdoc, MDOC_br);
1.151 schwarze 985: return;
1.138 schwarze 986: }
1.1 kristaps 987: }
988:
1.45 kristaps 989: /*
1.109 kristaps 990: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 991: * macro openings. Implicit ones first close out prior scope
992: * (seen above). Delay opening the head until necessary to
993: * allow leading punctuation to print. Special consideration
994: * for `It -column', which has phrase-part syntax instead of
995: * regular child nodes.
996: */
997:
1.152 schwarze 998: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 schwarze 999: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 1000: head = body = NULL;
1.115 schwarze 1001:
1002: /*
1003: * Exception: Heads of `It' macros in `-diag' lists are not
1004: * parsed, even though `It' macros in general are parsed.
1005: */
1.151 schwarze 1006:
1.153 schwarze 1007: parsed = tok != MDOC_It ||
1008: mdoc->last->parent->tok != MDOC_Bl ||
1009: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 1010:
1.45 kristaps 1011: /*
1012: * The `Nd' macro has all arguments in its body: it's a hybrid
1013: * of block partial-explicit and full-implicit. Stupid.
1014: */
1.19 kristaps 1015:
1.150 schwarze 1016: if (tok == MDOC_Nd) {
1017: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 1018: rew_last(mdoc, head);
1.150 schwarze 1019: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 1020: }
1021:
1.150 schwarze 1022: if (tok == MDOC_Bk)
1.123 schwarze 1023: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1024:
1.150 schwarze 1025: ac = ARGS_PEND;
1026: for (;;) {
1.45 kristaps 1027: la = *pos;
1.150 schwarze 1028: lac = ac;
1.119 schwarze 1029: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1030: if (ac == ARGS_PUNCT)
1.89 schwarze 1031: break;
1.150 schwarze 1032: if (ac == ARGS_EOLN) {
1033: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 1034: break;
1035: /*
1036: * This is necessary: if the last token on a
1037: * line is a `Ta' or tab, then we'll get
1038: * ARGS_EOLN, so we must be smart enough to
1039: * reopen our scope if the last parse was a
1040: * phrase or partial phrase.
1041: */
1.167 schwarze 1042: if (body != NULL)
1043: rew_last(mdoc, body);
1.150 schwarze 1044: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1045: break;
1.75 kristaps 1046: }
1.45 kristaps 1047:
1.131 schwarze 1048: /*
1.73 kristaps 1049: * Emit leading punctuation (i.e., punctuation before
1050: * the MDOC_HEAD) for non-phrase types.
1051: */
1.45 kristaps 1052:
1.150 schwarze 1053: if (head == NULL &&
1054: ac != ARGS_PEND &&
1055: ac != ARGS_PHRASE &&
1056: ac != ARGS_PPHRASE &&
1057: ac != ARGS_QWORD &&
1058: mdoc_isdelim(p) == DELIM_OPEN) {
1059: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1060: continue;
1061: }
1062:
1.74 kristaps 1063: /* Open a head if one hasn't been opened. */
1.45 kristaps 1064:
1.150 schwarze 1065: if (head == NULL)
1066: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1067:
1.150 schwarze 1068: if (ac == ARGS_PHRASE ||
1069: ac == ARGS_PEND ||
1070: ac == ARGS_PPHRASE) {
1.151 schwarze 1071:
1.73 kristaps 1072: /*
1.74 kristaps 1073: * If we haven't opened a body yet, rewind the
1074: * head; if we have, rewind that instead.
1075: */
1076:
1.167 schwarze 1077: rew_last(mdoc, body == NULL ? head : body);
1.150 schwarze 1078: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1079:
1080: /*
1.73 kristaps 1081: * Process phrases: set whether we're in a
1082: * partial-phrase (this effects line handling)
1083: * then call down into the phrase parser.
1084: */
1.74 kristaps 1085:
1.150 schwarze 1086: if (ac == ARGS_PPHRASE)
1.119 schwarze 1087: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1088: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1089: mdoc->flags |= MDOC_PPHRASE;
1.154 schwarze 1090: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1091: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1092: continue;
1093: }
1094:
1.153 schwarze 1095: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1096: break;
1.45 kristaps 1097: }
1.1 kristaps 1098:
1.165 schwarze 1099: if (blk->flags & MDOC_VALID)
1100: return;
1.150 schwarze 1101: if (head == NULL)
1102: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1103: if (nl)
1104: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1105: if (body != NULL)
1.77 kristaps 1106: goto out;
1.19 kristaps 1107:
1.47 kristaps 1108: /*
1.49 kristaps 1109: * If there is an open (i.e., unvalidated) sub-block requiring
1110: * explicit close-out, postpone switching the current block from
1.167 schwarze 1111: * head to body until the rew_pending() call closing out that
1.49 kristaps 1112: * sub-block.
1.47 kristaps 1113: */
1.119 schwarze 1114: for (n = mdoc->last; n && n != head; n = n->parent) {
1.151 schwarze 1115: if (n->type == MDOC_BLOCK &&
1116: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1117: ! (n->flags & MDOC_VALID)) {
1.47 kristaps 1118: n->pending = head;
1.151 schwarze 1119: return;
1.47 kristaps 1120: }
1121: }
1122:
1.45 kristaps 1123: /* Close out scopes to remain in a consistent state. */
1124:
1.167 schwarze 1125: rew_last(mdoc, head);
1126: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1127: out:
1.150 schwarze 1128: if (mdoc->flags & MDOC_FREECOL) {
1.167 schwarze 1129: rew_last(mdoc, body);
1130: rew_last(mdoc, blk);
1.150 schwarze 1131: mdoc->flags &= ~MDOC_FREECOL;
1132: }
1.1 kristaps 1133: }
1134:
1.151 schwarze 1135: static void
1.1 kristaps 1136: blk_part_imp(MACRO_PROT_ARGS)
1137: {
1.63 kristaps 1138: int la, nl;
1.55 kristaps 1139: enum margserr ac;
1.1 kristaps 1140: char *p;
1.43 kristaps 1141: struct mdoc_node *blk; /* saved block context */
1142: struct mdoc_node *body; /* saved body context */
1143: struct mdoc_node *n;
1.1 kristaps 1144:
1.119 schwarze 1145: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1146:
1.43 kristaps 1147: /*
1148: * A macro that spans to the end of the line. This is generally
1149: * (but not necessarily) called as the first macro. The block
1150: * has a head as the immediate child, which is always empty,
1151: * followed by zero or more opening punctuation nodes, then the
1152: * body (which may be empty, depending on the macro), then zero
1153: * or more closing punctuation nodes.
1154: */
1.32 kristaps 1155:
1.150 schwarze 1156: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.162 schwarze 1157: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1158:
1.43 kristaps 1159: /*
1160: * Open the body scope "on-demand", that is, after we've
1161: * processed all our the leading delimiters (open parenthesis,
1162: * etc.).
1163: */
1.1 kristaps 1164:
1.43 kristaps 1165: for (body = NULL; ; ) {
1.32 kristaps 1166: la = *pos;
1.119 schwarze 1167: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1168: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1169: break;
1170:
1.150 schwarze 1171: if (body == NULL && ac != ARGS_QWORD &&
1172: mdoc_isdelim(p) == DELIM_OPEN) {
1173: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1174: continue;
1.123 schwarze 1175: }
1.1 kristaps 1176:
1.150 schwarze 1177: if (body == NULL)
1178: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1179:
1.153 schwarze 1180: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1181: break;
1.1 kristaps 1182: }
1.150 schwarze 1183: if (body == NULL)
1184: body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1185:
1.83 schwarze 1186: /*
1187: * If there is an open sub-block requiring explicit close-out,
1.167 schwarze 1188: * postpone closing out the current block until the
1189: * rew_pending() call closing out the sub-block.
1.83 schwarze 1190: */
1.151 schwarze 1191:
1.119 schwarze 1192: for (n = mdoc->last; n && n != body && n != blk->parent;
1.131 schwarze 1193: n = n->parent) {
1.150 schwarze 1194: if (n->type == MDOC_BLOCK &&
1195: mdoc_macros[n->tok].flags & MDOC_EXPLICIT &&
1196: ! (n->flags & MDOC_VALID)) {
1.168 schwarze 1197: make_pending(mdoc, blk, n, line, ppos);
1.150 schwarze 1198: mdoc_endbody_alloc(mdoc, line, ppos,
1199: tok, body, ENDBODY_NOSPACE);
1.151 schwarze 1200: return;
1.83 schwarze 1201: }
1202: }
1.134 schwarze 1203: assert(n == body);
1.164 schwarze 1204: rew_last(mdoc, body);
1.150 schwarze 1205: if (nl)
1206: append_delims(mdoc, line, pos, buf);
1.166 schwarze 1207: rew_pending(mdoc, blk);
1.117 schwarze 1208:
1209: /* Move trailing .Ns out of scope. */
1210:
1211: for (n = body->child; n && n->next; n = n->next)
1212: /* Do nothing. */ ;
1.150 schwarze 1213: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1214: mdoc_node_relink(mdoc, n);
1.1 kristaps 1215: }
1216:
1.151 schwarze 1217: static void
1.1 kristaps 1218: blk_part_exp(MACRO_PROT_ARGS)
1219: {
1.60 kristaps 1220: int la, nl;
1.55 kristaps 1221: enum margserr ac;
1.43 kristaps 1222: struct mdoc_node *head; /* keep track of head */
1.1 kristaps 1223: char *p;
1224:
1.119 schwarze 1225: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1226:
1.43 kristaps 1227: /*
1228: * The opening of an explicit macro having zero or more leading
1229: * punctuation nodes; a head with optional single element (the
1230: * case of `Eo'); and a body that may be empty.
1231: */
1.32 kristaps 1232:
1.150 schwarze 1233: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163 schwarze 1234: head = NULL;
1235: for (;;) {
1.32 kristaps 1236: la = *pos;
1.119 schwarze 1237: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1238: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1239: break;
1.43 kristaps 1240:
1241: /* Flush out leading punctuation. */
1242:
1.150 schwarze 1243: if (head == NULL && ac != ARGS_QWORD &&
1244: mdoc_isdelim(p) == DELIM_OPEN) {
1245: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1246: continue;
1.123 schwarze 1247: }
1.43 kristaps 1248:
1.150 schwarze 1249: if (head == NULL) {
1250: head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1251: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1252: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1253: rew_last(mdoc, head);
1254: mdoc_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1255: if (tok == MDOC_Eo)
1.43 kristaps 1256: continue;
1.1 kristaps 1257: }
1.43 kristaps 1258:
1.153 schwarze 1259: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1260: break;
1.1 kristaps 1261: }
1262:
1.43 kristaps 1263: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1264:
1.163 schwarze 1265: if (head == NULL) {
1266: rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.150 schwarze 1267: mdoc_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1268: }
1.150 schwarze 1269: if (nl)
1270: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1271: }
1272:
1.151 schwarze 1273: static void
1.1 kristaps 1274: in_line_argn(MACRO_PROT_ARGS)
1275: {
1.60 kristaps 1276: int la, flushed, j, maxargs, nl;
1.55 kristaps 1277: enum margserr ac;
1.53 kristaps 1278: struct mdoc_arg *arg;
1279: char *p;
1280: enum mdoct ntok;
1.1 kristaps 1281:
1.156 schwarze 1282: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1283:
1.46 kristaps 1284: /*
1285: * A line macro that has a fixed number of arguments (maxargs).
1286: * Only open the scope once the first non-leading-punctuation is
1287: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1288: * keep it open until the maximum number of arguments are
1289: * exhausted.
1290: */
1.1 kristaps 1291:
1292: switch (tok) {
1.131 schwarze 1293: case MDOC_Ap:
1.1 kristaps 1294: /* FALLTHROUGH */
1.131 schwarze 1295: case MDOC_Ns:
1.1 kristaps 1296: /* FALLTHROUGH */
1.131 schwarze 1297: case MDOC_Ux:
1.1 kristaps 1298: maxargs = 0;
1299: break;
1.131 schwarze 1300: case MDOC_Bx:
1.101 kristaps 1301: /* FALLTHROUGH */
1.132 schwarze 1302: case MDOC_Es:
1303: /* FALLTHROUGH */
1.131 schwarze 1304: case MDOC_Xr:
1.42 kristaps 1305: maxargs = 2;
1306: break;
1.1 kristaps 1307: default:
1308: maxargs = 1;
1309: break;
1310: }
1311:
1.152 schwarze 1312: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1313:
1.156 schwarze 1314: p = NULL;
1315: flushed = j = 0;
1316: for (;;) {
1.32 kristaps 1317: la = *pos;
1.119 schwarze 1318: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.156 schwarze 1319: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1320: if (j < 2 && tok == MDOC_Pf)
1321: mandoc_vmsg(MANDOCERR_PF_SKIP,
1322: mdoc->parse, line, ppos, "Pf %s",
1323: p == NULL ? "at eol" : p);
1.1 kristaps 1324: break;
1.156 schwarze 1325: }
1.1 kristaps 1326:
1.150 schwarze 1327: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1328: ac != ARGS_QWORD && j == 0 &&
1329: mdoc_isdelim(p) == DELIM_OPEN) {
1330: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.46 kristaps 1331: continue;
1.150 schwarze 1332: } else if (j == 0)
1333: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.46 kristaps 1334:
1335: if (j == maxargs && ! flushed) {
1.149 schwarze 1336: rew_elem(mdoc, tok);
1.46 kristaps 1337: flushed = 1;
1338: }
1339:
1.156 schwarze 1340: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && j == 0)) ?
1341: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1342:
1.150 schwarze 1343: if (ntok != MDOC_MAX) {
1.149 schwarze 1344: if ( ! flushed)
1345: rew_elem(mdoc, tok);
1.1 kristaps 1346: flushed = 1;
1.151 schwarze 1347: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.46 kristaps 1348: j++;
1.1 kristaps 1349: break;
1350: }
1351:
1.150 schwarze 1352: if ( ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1353: ac != ARGS_QWORD && ! flushed &&
1354: mdoc_isdelim(p) != DELIM_NONE) {
1.149 schwarze 1355: rew_elem(mdoc, tok);
1.1 kristaps 1356: flushed = 1;
1357: }
1.42 kristaps 1358:
1.150 schwarze 1359: dword(mdoc, line, la, p, DELIM_MAX,
1360: MDOC_JOIN & mdoc_macros[tok].flags);
1.46 kristaps 1361: j++;
1.1 kristaps 1362: }
1363:
1.156 schwarze 1364: if (j == 0) {
1.150 schwarze 1365: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.156 schwarze 1366: if (ac == ARGS_PUNCT && tok == MDOC_Pf)
1367: append_delims(mdoc, line, pos, buf);
1368: }
1.149 schwarze 1369: if ( ! flushed)
1370: rew_elem(mdoc, tok);
1.150 schwarze 1371: if (nl)
1372: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1373: }
1374:
1.151 schwarze 1375: static void
1.1 kristaps 1376: in_line_eoln(MACRO_PROT_ARGS)
1377: {
1.170 schwarze 1378: struct mdoc_node *n;
1379: struct mdoc_arg *arg;
1.1 kristaps 1380:
1.170 schwarze 1381: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1382: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1383: n = mdoc->last;
1384: if (mdoc->next == MDOC_NEXT_SIBLING)
1385: n = n->parent;
1386: if (n->tok == MDOC_Nm)
1387: rew_last(mdoc, mdoc->last->parent);
1388: }
1.90 schwarze 1389:
1.152 schwarze 1390: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1391: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1392: if (parse_rest(mdoc, tok, line, pos, buf))
1393: return;
1394: rew_elem(mdoc, tok);
1395: }
1396:
1397: /*
1398: * The simplest argument parser available: Parse the remaining
1399: * words until the end of the phrase or line and return 0
1400: * or until the next macro, call that macro, and return 1.
1401: */
1402: static int
1403: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
1404: {
1405: int la;
1.1 kristaps 1406:
1407: for (;;) {
1408: la = *pos;
1.153 schwarze 1409: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1410: return(0);
1.153 schwarze 1411: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1412: return(1);
1.1 kristaps 1413: }
1414: }
1415:
1.151 schwarze 1416: static void
1.41 kristaps 1417: ctx_synopsis(MACRO_PROT_ARGS)
1418: {
1.60 kristaps 1419:
1.151 schwarze 1420: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1421: in_line(mdoc, tok, line, ppos, pos, buf);
1422: else if (tok == MDOC_Nm)
1423: blk_full(mdoc, tok, line, ppos, pos, buf);
1424: else {
1425: assert(tok == MDOC_Vt);
1426: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1427: }
1.1 kristaps 1428: }
1429:
1.24 kristaps 1430: /*
1431: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1432: * They're unusual because they're basically free-form text until a
1433: * macro is encountered.
1434: */
1.151 schwarze 1435: static void
1.75 kristaps 1436: phrase_ta(MACRO_PROT_ARGS)
1437: {
1.167 schwarze 1438: struct mdoc_node *body, *n;
1.75 kristaps 1439:
1.121 schwarze 1440: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1441:
1.167 schwarze 1442: body = NULL;
1443: for (n = mdoc->last; n != NULL; n = n->parent) {
1444: if (n->flags & (MDOC_VALID | MDOC_BREAK))
1445: continue;
1446: if (n->tok == MDOC_It && n->type == MDOC_BODY)
1447: body = n;
1448: if (n->tok == MDOC_Bl)
1449: break;
1450: }
1451:
1.151 schwarze 1452: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1453: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1454: line, ppos, "Ta");
1.151 schwarze 1455: return;
1.121 schwarze 1456: }
1.75 kristaps 1457:
1.121 schwarze 1458: /* Advance to the next column. */
1.150 schwarze 1459:
1.167 schwarze 1460: rew_last(mdoc, body);
1.150 schwarze 1461: mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 schwarze 1462: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1463: }
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