Annotation of mandoc/mdoc_macro.c, Revision 1.190
1.190 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.189 2015/04/18 16:06:40 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"
1.190 ! schwarze 33: #include "roff_int.h"
1.1 kristaps 34: #include "libmdoc.h"
35:
1.151 schwarze 36: static void blk_full(MACRO_PROT_ARGS);
37: static void blk_exp_close(MACRO_PROT_ARGS);
38: static void blk_part_exp(MACRO_PROT_ARGS);
39: static void blk_part_imp(MACRO_PROT_ARGS);
40: static void ctx_synopsis(MACRO_PROT_ARGS);
41: static void in_line_eoln(MACRO_PROT_ARGS);
42: static void in_line_argn(MACRO_PROT_ARGS);
43: static void in_line(MACRO_PROT_ARGS);
44: static void phrase_ta(MACRO_PROT_ARGS);
1.53 kristaps 45:
1.189 schwarze 46: static void append_delims(struct roff_man *, int, int *, char *);
47: static void dword(struct roff_man *, int, int, const char *,
1.187 schwarze 48: enum mdelim, int);
1.189 schwarze 49: static int find_pending(struct roff_man *, int, int, int,
1.187 schwarze 50: struct roff_node *);
1.189 schwarze 51: static int lookup(struct roff_man *, int, int, int, const char *);
1.153 schwarze 52: static int macro_or_word(MACRO_PROT_ARGS, int);
1.189 schwarze 53: static int parse_rest(struct roff_man *, int, int, int *, char *);
1.185 schwarze 54: static int rew_alt(int);
1.189 schwarze 55: static void rew_elem(struct roff_man *, int);
56: static void rew_last(struct roff_man *, const struct roff_node *);
57: static void rew_pending(struct roff_man *,
58: const struct roff_node *);
1.1 kristaps 59:
60: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123 schwarze 61: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 62: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
63: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
64: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123 schwarze 65: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
66: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
67: { in_line_eoln, 0 }, /* Pp */
68: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
69: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 70: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123 schwarze 71: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 72: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123 schwarze 73: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
74: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
75: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
76: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 77: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129 schwarze 78: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 79: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123 schwarze 80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
81: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 83: { in_line_eoln, 0 }, /* Ex */
1.123 schwarze 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
85: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123 schwarze 87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128 schwarze 89: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18 kristaps 90: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123 schwarze 91: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
92: { blk_full, MDOC_JOIN }, /* Nd */
93: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 94: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132 schwarze 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
97: { in_line_eoln, 0 }, /* Rv */
1.123 schwarze 98: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 99: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123 schwarze 100: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42 kristaps 101: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123 schwarze 102: { in_line_eoln, MDOC_JOIN }, /* %A */
103: { in_line_eoln, MDOC_JOIN }, /* %B */
104: { in_line_eoln, MDOC_JOIN }, /* %D */
105: { in_line_eoln, MDOC_JOIN }, /* %I */
106: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 107: { in_line_eoln, 0 }, /* %N */
1.123 schwarze 108: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 109: { in_line_eoln, 0 }, /* %P */
1.123 schwarze 110: { in_line_eoln, MDOC_JOIN }, /* %R */
111: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 112: { in_line_eoln, 0 }, /* %V */
1.123 schwarze 113: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
114: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
115: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
116: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
117: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 118: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123 schwarze 119: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
120: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
121: { blk_full, MDOC_EXPLICIT }, /* Bf */
122: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
123: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
124: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 125: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
126: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
127: { in_line_eoln, 0 }, /* Db */
1.123 schwarze 128: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
129: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
130: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
131: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
132: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
133: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
134: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
135: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 136: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
137: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11 kristaps 138: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144 schwarze 139: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123 schwarze 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
141: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123 schwarze 144: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
145: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52 kristaps 146: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123 schwarze 147: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
148: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
149: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
150: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
151: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
152: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
153: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
154: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
155: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
156: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 157: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123 schwarze 158: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
159: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
160: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
161: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
162: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147 schwarze 163: { in_line_argn, 0 }, /* Sm */
1.123 schwarze 164: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
165: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 166: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123 schwarze 167: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 168: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
169: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123 schwarze 170: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
171: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
172: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
173: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
174: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
175: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
176: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 177: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123 schwarze 178: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 179: { in_line_eoln, 0 }, /* Bt */
180: { in_line_eoln, 0 }, /* Hf */
1.132 schwarze 181: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 182: { in_line_eoln, 0 }, /* Ud */
1.69 kristaps 183: { in_line, 0 }, /* Lb */
1.123 schwarze 184: { in_line_eoln, 0 }, /* Lp */
185: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
186: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
187: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
188: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
189: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
190: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
191: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
192: { in_line_eoln, MDOC_JOIN }, /* %C */
1.132 schwarze 193: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
194: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 195: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123 schwarze 196: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20 kristaps 197: { in_line_eoln, 0 }, /* br */
198: { in_line_eoln, 0 }, /* sp */
1.37 kristaps 199: { in_line_eoln, 0 }, /* %U */
1.123 schwarze 200: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143 schwarze 201: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 202: };
203:
204: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
205:
206:
207: /*
208: * This is called at the end of parsing. It must traverse up the tree,
209: * closing out open [implicit] scopes. Obviously, open explicit scopes
210: * are errors.
211: */
1.151 schwarze 212: void
1.189 schwarze 213: mdoc_macroend(struct roff_man *mdoc)
1.1 kristaps 214: {
1.185 schwarze 215: struct roff_node *n;
1.1 kristaps 216:
217: /* Scan for open explicit scopes. */
218:
1.151 schwarze 219: n = mdoc->last->flags & MDOC_VALID ?
1.131 schwarze 220: mdoc->last->parent : mdoc->last;
1.1 kristaps 221:
1.94 schwarze 222: for ( ; n; n = n->parent)
1.184 schwarze 223: if (n->type == ROFFT_BLOCK &&
1.151 schwarze 224: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137 schwarze 225: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
226: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 227:
1.32 kristaps 228: /* Rewind to the first. */
229:
1.149 schwarze 230: rew_last(mdoc, mdoc->first);
1.1 kristaps 231: }
232:
1.32 kristaps 233: /*
1.153 schwarze 234: * Look up the macro at *p called by "from",
235: * or as a line macro if from == MDOC_MAX.
1.32 kristaps 236: */
1.185 schwarze 237: static int
1.189 schwarze 238: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.28 kristaps 239: {
1.185 schwarze 240: int res;
1.1 kristaps 241:
1.153 schwarze 242: if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
243: res = mdoc_hash_find(p);
1.155 schwarze 244: if (res != MDOC_MAX) {
245: if (mdoc_macros[res].flags & MDOC_CALLABLE)
246: return(res);
247: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
248: mandoc_msg(MANDOCERR_MACRO_CALL,
249: mdoc->parse, line, ppos, p);
250: }
1.153 schwarze 251: }
1.1 kristaps 252: return(MDOC_MAX);
253: }
254:
1.166 schwarze 255: /*
256: * Rewind up to and including a specific node.
257: */
1.149 schwarze 258: static void
1.189 schwarze 259: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1 kristaps 260: {
1.185 schwarze 261: struct roff_node *n, *np;
1.1 kristaps 262:
1.186 schwarze 263: if (to->flags & MDOC_VALID)
264: return;
265:
1.189 schwarze 266: mdoc->next = ROFF_NEXT_SIBLING;
1.1 kristaps 267: while (mdoc->last != to) {
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
1.189 schwarze 288: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.166 schwarze 289: {
290:
1.183 schwarze 291: for (;;) {
292: rew_last(mdoc, n);
293:
294: switch (n->type) {
1.184 schwarze 295: case ROFFT_HEAD:
1.190 ! schwarze 296: roff_body_alloc(mdoc, n->line, n->pos, n->tok);
1.183 schwarze 297: return;
1.184 schwarze 298: case ROFFT_BLOCK:
1.183 schwarze 299: break;
300: default:
301: return;
302: }
1.166 schwarze 303:
1.183 schwarze 304: if ( ! (n->flags & MDOC_BROKEN))
305: return;
1.166 schwarze 306:
1.183 schwarze 307: for (;;) {
308: if ((n = n->parent) == NULL)
309: return;
310:
1.184 schwarze 311: if (n->type == ROFFT_BLOCK ||
312: n->type == ROFFT_HEAD) {
1.183 schwarze 313: if (n->flags & MDOC_ENDED)
314: break;
315: else
316: return;
317: }
318: }
1.166 schwarze 319: }
320: }
321:
322: /*
1.84 schwarze 323: * For a block closing macro, return the corresponding opening one.
324: * Otherwise, return the macro itself.
1.32 kristaps 325: */
1.185 schwarze 326: static int
327: rew_alt(int tok)
1.1 kristaps 328: {
329: switch (tok) {
1.131 schwarze 330: case MDOC_Ac:
1.1 kristaps 331: return(MDOC_Ao);
1.131 schwarze 332: case MDOC_Bc:
1.1 kristaps 333: return(MDOC_Bo);
1.131 schwarze 334: case MDOC_Brc:
1.1 kristaps 335: return(MDOC_Bro);
1.131 schwarze 336: case MDOC_Dc:
1.1 kristaps 337: return(MDOC_Do);
1.131 schwarze 338: case MDOC_Ec:
1.1 kristaps 339: return(MDOC_Eo);
1.131 schwarze 340: case MDOC_Ed:
1.1 kristaps 341: return(MDOC_Bd);
1.131 schwarze 342: case MDOC_Ef:
1.1 kristaps 343: return(MDOC_Bf);
1.131 schwarze 344: case MDOC_Ek:
1.1 kristaps 345: return(MDOC_Bk);
1.131 schwarze 346: case MDOC_El:
1.1 kristaps 347: return(MDOC_Bl);
1.131 schwarze 348: case MDOC_Fc:
1.1 kristaps 349: return(MDOC_Fo);
1.131 schwarze 350: case MDOC_Oc:
1.1 kristaps 351: return(MDOC_Oo);
1.131 schwarze 352: case MDOC_Pc:
1.1 kristaps 353: return(MDOC_Po);
1.131 schwarze 354: case MDOC_Qc:
1.1 kristaps 355: return(MDOC_Qo);
1.131 schwarze 356: case MDOC_Re:
1.1 kristaps 357: return(MDOC_Rs);
1.131 schwarze 358: case MDOC_Sc:
1.1 kristaps 359: return(MDOC_So);
1.131 schwarze 360: case MDOC_Xc:
1.1 kristaps 361: return(MDOC_Xo);
362: default:
1.84 schwarze 363: return(tok);
1.1 kristaps 364: }
365: /* NOTREACHED */
366: }
367:
1.149 schwarze 368: static void
1.189 schwarze 369: rew_elem(struct roff_man *mdoc, int tok)
1.1 kristaps 370: {
1.185 schwarze 371: struct roff_node *n;
1.1 kristaps 372:
373: n = mdoc->last;
1.184 schwarze 374: if (n->type != ROFFT_ELEM)
1.1 kristaps 375: n = n->parent;
1.184 schwarze 376: assert(n->type == ROFFT_ELEM);
1.1 kristaps 377: assert(tok == n->tok);
1.149 schwarze 378: rew_last(mdoc, n);
1.1 kristaps 379: }
380:
1.83 schwarze 381: /*
1.187 schwarze 382: * If there is an open sub-block of the target requiring
383: * explicit close-out, postpone closing out the target until
384: * the rew_pending() call closing out the sub-block.
385: */
386: static int
1.189 schwarze 387: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.187 schwarze 388: struct roff_node *target)
389: {
390: struct roff_node *n;
391: int irc;
392:
393: irc = 0;
394: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
395: if (n->flags & MDOC_ENDED) {
396: if ( ! (n->flags & MDOC_VALID))
397: n->flags |= MDOC_BROKEN;
398: continue;
399: }
400: if (n->type == ROFFT_BLOCK &&
401: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
402: irc = 1;
403: n->flags = MDOC_BROKEN;
404: if (target->type == ROFFT_HEAD)
405: target->flags = MDOC_ENDED;
406: else if ( ! (target->flags & MDOC_ENDED)) {
407: mandoc_vmsg(MANDOCERR_BLK_NEST,
408: mdoc->parse, line, ppos,
409: "%s breaks %s", mdoc_macronames[tok],
410: mdoc_macronames[n->tok]);
411: mdoc_endbody_alloc(mdoc, line, ppos,
412: tok, target, ENDBODY_NOSPACE);
413: }
414: }
415: }
416: return(irc);
417: }
418:
419: /*
1.105 kristaps 420: * Allocate a word and check whether it's punctuation or not.
421: * Punctuation consists of those tokens found in mdoc_isdelim().
422: */
1.150 schwarze 423: static void
1.189 schwarze 424: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.123 schwarze 425: enum mdelim d, int may_append)
1.105 kristaps 426: {
1.131 schwarze 427:
1.150 schwarze 428: if (d == DELIM_MAX)
1.105 kristaps 429: d = mdoc_isdelim(p);
430:
1.123 schwarze 431: if (may_append &&
1.150 schwarze 432: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184 schwarze 433: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150 schwarze 434: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123 schwarze 435: mdoc_word_append(mdoc, p);
1.150 schwarze 436: return;
1.123 schwarze 437: }
438:
1.150 schwarze 439: mdoc_word_alloc(mdoc, line, col, p);
1.105 kristaps 440:
1.108 schwarze 441: /*
1.144 schwarze 442: * If the word consists of a bare delimiter,
443: * flag the new node accordingly,
444: * unless doing so was vetoed by the invoking macro.
445: * Always clear the veto, it is only valid for one word.
1.108 schwarze 446: */
447:
1.144 schwarze 448: if (d == DELIM_OPEN)
449: mdoc->last->flags |= MDOC_DELIMO;
450: else if (d == DELIM_CLOSE &&
451: ! (mdoc->flags & MDOC_NODELIMC) &&
1.131 schwarze 452: mdoc->last->parent->tok != MDOC_Fd)
1.119 schwarze 453: mdoc->last->flags |= MDOC_DELIMC;
1.144 schwarze 454: mdoc->flags &= ~MDOC_NODELIMC;
1.105 kristaps 455: }
1.1 kristaps 456:
1.150 schwarze 457: static void
1.189 schwarze 458: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1 kristaps 459: {
1.153 schwarze 460: char *p;
1.66 kristaps 461: int la;
1.1 kristaps 462:
1.150 schwarze 463: if (buf[*pos] == '\0')
464: return;
1.1 kristaps 465:
466: for (;;) {
1.66 kristaps 467: la = *pos;
1.153 schwarze 468: if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1 kristaps 469: break;
1.123 schwarze 470: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 471:
472: /*
473: * If we encounter end-of-sentence symbols, then trigger
474: * the double-space.
475: *
1.109 kristaps 476: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 477: * the last symbol, such that `. )' will cause the
478: * correct double-spacing. However, (1) groff isn't
479: * smart enough to do this and (2) it would require
480: * knowing which symbols break this behaviour, for
1.109 kristaps 481: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 482: */
1.150 schwarze 483:
1.127 schwarze 484: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 485: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 486: }
487: }
488:
489: /*
1.153 schwarze 490: * Parse one word.
491: * If it is a macro, call it and return 1.
492: * Otherwise, allocate it and return 0.
493: */
494: static int
495: macro_or_word(MACRO_PROT_ARGS, int parsed)
496: {
497: char *p;
1.185 schwarze 498: int ntok;
1.153 schwarze 499:
500: p = buf + ppos;
501: ntok = MDOC_MAX;
1.157 schwarze 502: if (*p == '"')
1.153 schwarze 503: p++;
1.157 schwarze 504: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 505: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 506:
507: if (ntok == MDOC_MAX) {
508: dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
509: mdoc_macros[tok].flags & MDOC_JOIN);
510: return(0);
511: } else {
512: if (mdoc_macros[tok].fp == in_line_eoln)
513: rew_elem(mdoc, tok);
514: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
515: if (tok == MDOC_MAX)
516: append_delims(mdoc, line, pos, buf);
517: return(1);
518: }
519: }
520:
521: /*
1.131 schwarze 522: * Close out block partial/full explicit.
1.1 kristaps 523: */
1.151 schwarze 524: static void
1.1 kristaps 525: blk_exp_close(MACRO_PROT_ARGS)
526: {
1.185 schwarze 527: struct roff_node *body; /* Our own body. */
528: struct roff_node *endbody; /* Our own end marker. */
529: struct roff_node *itblk; /* An It block starting later. */
530: struct roff_node *later; /* A sub-block starting later. */
531: struct roff_node *n; /* Search back to our block. */
1.188 schwarze 532: struct roff_node *target; /* For find_pending(). */
1.83 schwarze 533:
1.188 schwarze 534: int j, lastarg, maxargs, nl, pending;
1.55 kristaps 535: enum margserr ac;
1.185 schwarze 536: int atok, ntok;
1.1 kristaps 537: char *p;
538:
1.119 schwarze 539: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 540:
1.1 kristaps 541: switch (tok) {
1.131 schwarze 542: case MDOC_Ec:
1.1 kristaps 543: maxargs = 1;
544: break;
1.131 schwarze 545: case MDOC_Ek:
1.125 schwarze 546: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 547: /* FALLTHROUGH */
1.1 kristaps 548: default:
549: maxargs = 0;
550: break;
551: }
552:
1.83 schwarze 553: /*
554: * Search backwards for beginnings of blocks,
555: * both of our own and of pending sub-blocks.
556: */
1.151 schwarze 557:
1.83 schwarze 558: atok = rew_alt(tok);
1.171 schwarze 559: body = endbody = itblk = later = NULL;
1.119 schwarze 560: for (n = mdoc->last; n; n = n->parent) {
1.183 schwarze 561: if (n->flags & MDOC_ENDED) {
562: if ( ! (n->flags & MDOC_VALID))
563: n->flags |= MDOC_BROKEN;
1.83 schwarze 564: continue;
1.183 schwarze 565: }
1.83 schwarze 566:
567: /* Remember the start of our own body. */
1.151 schwarze 568:
1.184 schwarze 569: if (n->type == ROFFT_BODY && atok == n->tok) {
1.175 schwarze 570: if (n->end == ENDBODY_NOT)
1.83 schwarze 571: body = n;
572: continue;
573: }
574:
1.184 schwarze 575: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 576: continue;
1.160 schwarze 577:
578: if (n->tok == MDOC_It) {
1.171 schwarze 579: itblk = n;
1.160 schwarze 580: continue;
581: }
582:
1.83 schwarze 583: if (atok == n->tok) {
584: assert(body);
585:
586: /*
587: * Found the start of our own block.
588: * When there is no pending sub block,
589: * just proceed to closing out.
590: */
1.151 schwarze 591:
1.160 schwarze 592: if (later == NULL ||
1.171 schwarze 593: (tok == MDOC_El && itblk == NULL))
1.83 schwarze 594: break;
595:
1.131 schwarze 596: /*
1.167 schwarze 597: * When there is a pending sub block, postpone
598: * closing out the current block until the
599: * rew_pending() closing out the sub-block.
1.83 schwarze 600: * Mark the place where the formatting - but not
601: * the scope - of the current block ends.
602: */
1.151 schwarze 603:
1.183 schwarze 604: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
605: line, ppos, "%s breaks %s",
606: mdoc_macronames[atok],
607: mdoc_macronames[later->tok]);
608:
1.166 schwarze 609: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150 schwarze 610: atok, body, ENDBODY_SPACE);
1.151 schwarze 611:
1.183 schwarze 612: if (tok == MDOC_El)
613: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
614:
1.151 schwarze 615: /*
616: * If a block closing macro taking arguments
617: * breaks another block, put the arguments
1.166 schwarze 618: * into the end marker.
1.151 schwarze 619: */
620:
1.166 schwarze 621: if (maxargs)
1.189 schwarze 622: mdoc->next = ROFF_NEXT_CHILD;
1.83 schwarze 623: break;
1.182 schwarze 624: }
625:
626: /* Explicit blocks close out description lines. */
627:
628: if (n->tok == MDOC_Nd) {
629: rew_last(mdoc, n);
630: continue;
1.83 schwarze 631: }
632:
1.183 schwarze 633: /* Breaking an open sub block. */
1.151 schwarze 634:
1.183 schwarze 635: n->flags |= MDOC_BROKEN;
636: if (later == NULL)
1.83 schwarze 637: later = n;
638: }
1.166 schwarze 639:
640: if (body == NULL) {
641: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
642: line, ppos, mdoc_macronames[tok]);
643: if (maxargs && endbody == NULL) {
644: /*
645: * Stray .Ec without previous .Eo:
646: * Break the output line, keep the arguments.
647: */
648: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
649: rew_elem(mdoc, MDOC_br);
650: }
651: } else if (endbody == NULL) {
652: rew_last(mdoc, body);
653: if (maxargs)
654: mdoc_tail_alloc(mdoc, line, ppos, atok);
655: }
1.83 schwarze 656:
1.150 schwarze 657: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
658: if (buf[*pos] != '\0')
1.136 schwarze 659: mandoc_vmsg(MANDOCERR_ARG_SKIP,
660: mdoc->parse, line, ppos,
661: "%s %s", mdoc_macronames[tok],
662: buf + *pos);
1.171 schwarze 663: if (endbody == NULL && n != NULL)
1.167 schwarze 664: rew_pending(mdoc, n);
1.151 schwarze 665: return;
1.1 kristaps 666: }
667:
1.166 schwarze 668: if (endbody != NULL)
669: n = endbody;
1.148 schwarze 670: for (j = 0; ; j++) {
1.1 kristaps 671: lastarg = *pos;
672:
1.186 schwarze 673: if (j == maxargs && n != NULL)
674: rew_last(mdoc, n);
1.1 kristaps 675:
1.119 schwarze 676: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 677: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 678: break;
679:
1.155 schwarze 680: ntok = ac == ARGS_QWORD ? MDOC_MAX :
681: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 682:
1.150 schwarze 683: if (ntok == MDOC_MAX) {
684: dword(mdoc, line, lastarg, p, DELIM_MAX,
685: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 686: continue;
687: }
1.1 kristaps 688:
1.186 schwarze 689: if (n != NULL)
690: rew_last(mdoc, n);
1.122 schwarze 691: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 692: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 693: break;
1.1 kristaps 694: }
695:
1.188 schwarze 696: if (n != NULL) {
697: if (n != mdoc->last && n->flags & MDOC_BROKEN) {
698: target = n;
699: do
700: target = target->parent;
701: while ( ! (target->flags & MDOC_ENDED));
702: pending = find_pending(mdoc, ntok, line, ppos,
703: target);
704: } else
705: pending = 0;
706: if ( ! pending)
707: rew_pending(mdoc, n);
708: }
1.150 schwarze 709: if (nl)
710: append_delims(mdoc, line, pos, buf);
1.1 kristaps 711: }
712:
1.151 schwarze 713: static void
1.1 kristaps 714: in_line(MACRO_PROT_ARGS)
715: {
1.144 schwarze 716: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.185 schwarze 717: int ntok;
1.55 kristaps 718: enum margserr ac;
1.67 schwarze 719: enum mdelim d;
1.53 kristaps 720: struct mdoc_arg *arg;
721: char *p;
1.1 kristaps 722:
1.119 schwarze 723: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 724:
1.4 kristaps 725: /*
726: * Whether we allow ignored elements (those without content,
727: * usually because of reserved words) to squeak by.
728: */
1.45 kristaps 729:
1.4 kristaps 730: switch (tok) {
1.131 schwarze 731: case MDOC_An:
1.26 kristaps 732: /* FALLTHROUGH */
1.131 schwarze 733: case MDOC_Ar:
1.4 kristaps 734: /* FALLTHROUGH */
1.131 schwarze 735: case MDOC_Fl:
1.4 kristaps 736: /* FALLTHROUGH */
1.131 schwarze 737: case MDOC_Mt:
1.12 kristaps 738: /* FALLTHROUGH */
1.131 schwarze 739: case MDOC_Nm:
1.26 kristaps 740: /* FALLTHROUGH */
1.131 schwarze 741: case MDOC_Pa:
1.4 kristaps 742: nc = 1;
743: break;
744: default:
745: nc = 0;
746: break;
747: }
748:
1.152 schwarze 749: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 750:
1.144 schwarze 751: d = DELIM_NONE;
752: firstarg = 1;
1.142 schwarze 753: mayopen = 1;
1.70 kristaps 754: for (cnt = scope = 0;; ) {
1.1 kristaps 755: la = *pos;
1.119 schwarze 756: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 757:
1.144 schwarze 758: /*
759: * At the end of a macro line,
760: * opening delimiters do not suppress spacing.
761: */
762:
763: if (ac == ARGS_EOLN) {
764: if (d == DELIM_OPEN)
765: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 766: break;
1.144 schwarze 767: }
768:
769: /*
770: * The rest of the macro line is only punctuation,
771: * to be handled by append_delims().
772: * If there were no other arguments,
773: * do not allow the first one to suppress spacing,
774: * even if it turns out to be a closing one.
775: */
776:
777: if (ac == ARGS_PUNCT) {
1.176 schwarze 778: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144 schwarze 779: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 780: break;
1.144 schwarze 781: }
1.1 kristaps 782:
1.145 schwarze 783: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155 schwarze 784: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1 kristaps 785:
1.131 schwarze 786: /*
1.4 kristaps 787: * In this case, we've located a submacro and must
788: * execute it. Close out scope, if open. If no
789: * elements have been generated, either create one (nc)
790: * or raise a warning.
791: */
1.1 kristaps 792:
1.150 schwarze 793: if (ntok != MDOC_MAX) {
1.149 schwarze 794: if (scope)
795: rew_elem(mdoc, tok);
1.150 schwarze 796: if (nc && ! cnt) {
797: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 798: rew_last(mdoc, mdoc->last);
1.150 schwarze 799: } else if ( ! nc && ! cnt) {
1.7 kristaps 800: mdoc_argv_free(arg);
1.135 schwarze 801: mandoc_msg(MANDOCERR_MACRO_EMPTY,
802: mdoc->parse, line, ppos,
803: mdoc_macronames[tok]);
1.7 kristaps 804: }
1.151 schwarze 805: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 806: if (nl)
807: append_delims(mdoc, line, pos, buf);
1.151 schwarze 808: return;
1.131 schwarze 809: }
1.1 kristaps 810:
1.131 schwarze 811: /*
1.4 kristaps 812: * Non-quote-enclosed punctuation. Set up our scope, if
813: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 814: * the word.
1.4 kristaps 815: */
1.1 kristaps 816:
1.150 schwarze 817: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 818:
1.70 kristaps 819: if (DELIM_NONE != d) {
820: /*
821: * If we encounter closing punctuation, no word
1.144 schwarze 822: * has been emitted, no scope is open, and we're
1.70 kristaps 823: * allowed to have an empty element, then start
1.142 schwarze 824: * a new scope.
1.70 kristaps 825: */
1.142 schwarze 826: if ((d == DELIM_CLOSE ||
827: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 828: !cnt && !scope && nc && mayopen) {
1.150 schwarze 829: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 830: scope = 1;
1.142 schwarze 831: cnt++;
1.150 schwarze 832: if (tok == MDOC_Nm)
1.142 schwarze 833: mayopen = 0;
1.70 kristaps 834: }
835: /*
836: * Close out our scope, if one is open, before
837: * any punctuation.
838: */
1.149 schwarze 839: if (scope)
840: rew_elem(mdoc, tok);
1.70 kristaps 841: scope = 0;
1.145 schwarze 842: if (tok == MDOC_Fn)
843: mayopen = 0;
1.142 schwarze 844: } else if (mayopen && !scope) {
1.150 schwarze 845: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 846: scope = 1;
1.142 schwarze 847: cnt++;
1.1 kristaps 848: }
1.105 kristaps 849:
1.150 schwarze 850: dword(mdoc, line, la, p, d,
851: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 852:
853: /*
1.144 schwarze 854: * If the first argument is a closing delimiter,
855: * do not suppress spacing before it.
856: */
857:
858: if (firstarg && d == DELIM_CLOSE && !nc)
859: mdoc->last->flags &= ~MDOC_DELIMC;
860: firstarg = 0;
861:
862: /*
1.39 kristaps 863: * `Fl' macros have their scope re-opened with each new
864: * word so that the `-' can be added to each one without
865: * having to parse out spaces.
866: */
1.150 schwarze 867: if (scope && tok == MDOC_Fl) {
1.149 schwarze 868: rew_elem(mdoc, tok);
1.70 kristaps 869: scope = 0;
1.39 kristaps 870: }
1.1 kristaps 871: }
872:
1.149 schwarze 873: if (scope)
874: rew_elem(mdoc, tok);
1.4 kristaps 875:
876: /*
877: * If no elements have been collected and we're allowed to have
878: * empties (nc), open a scope and close it out. Otherwise,
879: * raise a warning.
880: */
1.45 kristaps 881:
1.150 schwarze 882: if ( ! cnt) {
883: if (nc) {
884: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
885: rew_last(mdoc, mdoc->last);
886: } else {
887: mdoc_argv_free(arg);
888: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
889: line, ppos, mdoc_macronames[tok]);
890: }
1.7 kristaps 891: }
1.150 schwarze 892: if (nl)
893: append_delims(mdoc, line, pos, buf);
1.1 kristaps 894: }
895:
1.151 schwarze 896: static void
1.1 kristaps 897: blk_full(MACRO_PROT_ARGS)
898: {
1.153 schwarze 899: int la, nl, parsed;
1.1 kristaps 900: struct mdoc_arg *arg;
1.185 schwarze 901: struct roff_node *blk; /* Our own or a broken block. */
902: struct roff_node *head; /* Our own head. */
903: struct roff_node *body; /* Our own body. */
904: struct roff_node *n;
1.59 kristaps 905: enum margserr ac, lac;
1.1 kristaps 906: char *p;
907:
1.119 schwarze 908: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 909:
1.177 schwarze 910: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
911: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
912: line, ppos, mdoc_macronames[tok]);
913: return;
914: }
915:
1.171 schwarze 916: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
917:
918: /* Here, tok is one of Sh Ss Nm Nd It. */
919:
920: blk = NULL;
921: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 922: if (n->flags & MDOC_ENDED) {
923: if ( ! (n->flags & MDOC_VALID))
924: n->flags |= MDOC_BROKEN;
925: continue;
926: }
1.184 schwarze 927: if (n->type != ROFFT_BLOCK)
1.171 schwarze 928: continue;
1.183 schwarze 929:
1.171 schwarze 930: if (tok == MDOC_It && n->tok == MDOC_Bl) {
931: if (blk != NULL) {
932: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
933: mdoc->parse, line, ppos,
934: "It breaks %s",
935: mdoc_macronames[blk->tok]);
936: rew_pending(mdoc, blk);
937: }
938: break;
939: }
940:
941: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
942: switch (tok) {
943: case MDOC_Sh:
944: /* FALLTHROUGH */
945: case MDOC_Ss:
946: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
947: mdoc->parse, line, ppos,
948: "%s breaks %s",
949: mdoc_macronames[tok],
950: mdoc_macronames[n->tok]);
951: rew_pending(mdoc, n);
1.180 schwarze 952: n = mdoc->last;
1.171 schwarze 953: continue;
954: case MDOC_It:
955: /* Delay in case it's astray. */
956: blk = n;
957: continue;
958: default:
959: break;
960: }
961: break;
962: }
963:
964: /* Here, n is one of Sh Ss Nm Nd It. */
1.138 schwarze 965:
1.171 schwarze 966: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
967: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
968: (tok != MDOC_It && n->tok == MDOC_It)))))
1.138 schwarze 969: break;
1.171 schwarze 970:
971: /* Item breaking an explicit block. */
972:
973: if (blk != NULL) {
974: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
975: mdoc->parse, line, ppos,
976: "It breaks %s",
977: mdoc_macronames[blk->tok]);
978: rew_pending(mdoc, blk);
1.172 schwarze 979: blk = NULL;
1.171 schwarze 980: }
981:
982: /* Close out prior implicit scopes. */
983:
984: rew_last(mdoc, n);
985: }
986:
987: /* Skip items outside lists. */
988:
989: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138 schwarze 990: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
991: line, ppos, "It %s", buf + *pos);
1.150 schwarze 992: mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149 schwarze 993: rew_elem(mdoc, MDOC_br);
1.151 schwarze 994: return;
1.138 schwarze 995: }
1.1 kristaps 996: }
997:
1.45 kristaps 998: /*
1.109 kristaps 999: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1000: * macro openings. Implicit ones first close out prior scope
1001: * (seen above). Delay opening the head until necessary to
1002: * allow leading punctuation to print. Special consideration
1003: * for `It -column', which has phrase-part syntax instead of
1004: * regular child nodes.
1005: */
1006:
1.152 schwarze 1007: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 schwarze 1008: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 1009: head = body = NULL;
1.115 schwarze 1010:
1011: /*
1012: * Exception: Heads of `It' macros in `-diag' lists are not
1013: * parsed, even though `It' macros in general are parsed.
1014: */
1.151 schwarze 1015:
1.153 schwarze 1016: parsed = tok != MDOC_It ||
1017: mdoc->last->parent->tok != MDOC_Bl ||
1018: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 1019:
1.45 kristaps 1020: /*
1021: * The `Nd' macro has all arguments in its body: it's a hybrid
1022: * of block partial-explicit and full-implicit. Stupid.
1023: */
1.19 kristaps 1024:
1.150 schwarze 1025: if (tok == MDOC_Nd) {
1.190 ! schwarze 1026: head = roff_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 1027: rew_last(mdoc, head);
1.190 ! schwarze 1028: body = roff_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 1029: }
1030:
1.150 schwarze 1031: if (tok == MDOC_Bk)
1.123 schwarze 1032: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1033:
1.150 schwarze 1034: ac = ARGS_PEND;
1035: for (;;) {
1.45 kristaps 1036: la = *pos;
1.150 schwarze 1037: lac = ac;
1.119 schwarze 1038: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1039: if (ac == ARGS_EOLN) {
1040: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 1041: break;
1042: /*
1043: * This is necessary: if the last token on a
1044: * line is a `Ta' or tab, then we'll get
1045: * ARGS_EOLN, so we must be smart enough to
1046: * reopen our scope if the last parse was a
1047: * phrase or partial phrase.
1048: */
1.167 schwarze 1049: if (body != NULL)
1050: rew_last(mdoc, body);
1.190 ! schwarze 1051: body = roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1052: break;
1.75 kristaps 1053: }
1.174 schwarze 1054: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1055: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1056: mdoc->parse, line, la, "%s ... %s",
1057: mdoc_macronames[tok], buf + la);
1058: break;
1059: }
1.173 schwarze 1060: if (tok == MDOC_Rs) {
1061: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1062: line, la, "Rs %s", buf + la);
1063: break;
1064: }
1065: if (ac == ARGS_PUNCT)
1066: break;
1.45 kristaps 1067:
1.131 schwarze 1068: /*
1.73 kristaps 1069: * Emit leading punctuation (i.e., punctuation before
1.184 schwarze 1070: * the ROFFT_HEAD) for non-phrase types.
1.73 kristaps 1071: */
1.45 kristaps 1072:
1.150 schwarze 1073: if (head == NULL &&
1074: ac != ARGS_PEND &&
1075: ac != ARGS_PHRASE &&
1076: ac != ARGS_PPHRASE &&
1077: ac != ARGS_QWORD &&
1078: mdoc_isdelim(p) == DELIM_OPEN) {
1079: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1080: continue;
1081: }
1082:
1.74 kristaps 1083: /* Open a head if one hasn't been opened. */
1.45 kristaps 1084:
1.150 schwarze 1085: if (head == NULL)
1.190 ! schwarze 1086: head = roff_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1087:
1.150 schwarze 1088: if (ac == ARGS_PHRASE ||
1089: ac == ARGS_PEND ||
1090: ac == ARGS_PPHRASE) {
1.151 schwarze 1091:
1.73 kristaps 1092: /*
1.74 kristaps 1093: * If we haven't opened a body yet, rewind the
1094: * head; if we have, rewind that instead.
1095: */
1096:
1.167 schwarze 1097: rew_last(mdoc, body == NULL ? head : body);
1.190 ! schwarze 1098: body = roff_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1099:
1100: /*
1.73 kristaps 1101: * Process phrases: set whether we're in a
1102: * partial-phrase (this effects line handling)
1103: * then call down into the phrase parser.
1104: */
1.74 kristaps 1105:
1.150 schwarze 1106: if (ac == ARGS_PPHRASE)
1.119 schwarze 1107: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1108: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1109: mdoc->flags |= MDOC_PPHRASE;
1.154 schwarze 1110: parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119 schwarze 1111: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1112: continue;
1113: }
1114:
1.153 schwarze 1115: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1116: break;
1.45 kristaps 1117: }
1.1 kristaps 1118:
1.165 schwarze 1119: if (blk->flags & MDOC_VALID)
1120: return;
1.150 schwarze 1121: if (head == NULL)
1.190 ! schwarze 1122: head = roff_head_alloc(mdoc, line, ppos, tok);
1.174 schwarze 1123: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150 schwarze 1124: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1125: if (body != NULL)
1.77 kristaps 1126: goto out;
1.187 schwarze 1127: if (find_pending(mdoc, tok, line, ppos, head))
1.183 schwarze 1128: return;
1.47 kristaps 1129:
1.45 kristaps 1130: /* Close out scopes to remain in a consistent state. */
1131:
1.167 schwarze 1132: rew_last(mdoc, head);
1.190 ! schwarze 1133: body = roff_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1134: out:
1.150 schwarze 1135: if (mdoc->flags & MDOC_FREECOL) {
1.167 schwarze 1136: rew_last(mdoc, body);
1137: rew_last(mdoc, blk);
1.150 schwarze 1138: mdoc->flags &= ~MDOC_FREECOL;
1139: }
1.1 kristaps 1140: }
1141:
1.151 schwarze 1142: static void
1.1 kristaps 1143: blk_part_imp(MACRO_PROT_ARGS)
1144: {
1.63 kristaps 1145: int la, nl;
1.55 kristaps 1146: enum margserr ac;
1.1 kristaps 1147: char *p;
1.185 schwarze 1148: struct roff_node *blk; /* saved block context */
1149: struct roff_node *body; /* saved body context */
1150: struct roff_node *n;
1.1 kristaps 1151:
1.119 schwarze 1152: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1153:
1.43 kristaps 1154: /*
1155: * A macro that spans to the end of the line. This is generally
1156: * (but not necessarily) called as the first macro. The block
1157: * has a head as the immediate child, which is always empty,
1158: * followed by zero or more opening punctuation nodes, then the
1159: * body (which may be empty, depending on the macro), then zero
1160: * or more closing punctuation nodes.
1161: */
1.32 kristaps 1162:
1.150 schwarze 1163: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.190 ! schwarze 1164: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1165:
1.43 kristaps 1166: /*
1167: * Open the body scope "on-demand", that is, after we've
1168: * processed all our the leading delimiters (open parenthesis,
1169: * etc.).
1170: */
1.1 kristaps 1171:
1.43 kristaps 1172: for (body = NULL; ; ) {
1.32 kristaps 1173: la = *pos;
1.119 schwarze 1174: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1175: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1176: break;
1177:
1.150 schwarze 1178: if (body == NULL && ac != ARGS_QWORD &&
1179: mdoc_isdelim(p) == DELIM_OPEN) {
1180: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1181: continue;
1.123 schwarze 1182: }
1.1 kristaps 1183:
1.150 schwarze 1184: if (body == NULL)
1.190 ! schwarze 1185: body = roff_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1186:
1.153 schwarze 1187: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1188: break;
1.1 kristaps 1189: }
1.150 schwarze 1190: if (body == NULL)
1.190 ! schwarze 1191: body = roff_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1192:
1.187 schwarze 1193: if (find_pending(mdoc, tok, line, ppos, body))
1.183 schwarze 1194: return;
1195:
1.164 schwarze 1196: rew_last(mdoc, body);
1.150 schwarze 1197: if (nl)
1198: append_delims(mdoc, line, pos, buf);
1.166 schwarze 1199: rew_pending(mdoc, blk);
1.117 schwarze 1200:
1201: /* Move trailing .Ns out of scope. */
1202:
1203: for (n = body->child; n && n->next; n = n->next)
1204: /* Do nothing. */ ;
1.150 schwarze 1205: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1206: mdoc_node_relink(mdoc, n);
1.1 kristaps 1207: }
1208:
1.151 schwarze 1209: static void
1.1 kristaps 1210: blk_part_exp(MACRO_PROT_ARGS)
1211: {
1.60 kristaps 1212: int la, nl;
1.55 kristaps 1213: enum margserr ac;
1.185 schwarze 1214: struct roff_node *head; /* keep track of head */
1.1 kristaps 1215: char *p;
1216:
1.119 schwarze 1217: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1218:
1.43 kristaps 1219: /*
1220: * The opening of an explicit macro having zero or more leading
1221: * punctuation nodes; a head with optional single element (the
1222: * case of `Eo'); and a body that may be empty.
1223: */
1.32 kristaps 1224:
1.150 schwarze 1225: mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163 schwarze 1226: head = NULL;
1227: for (;;) {
1.32 kristaps 1228: la = *pos;
1.119 schwarze 1229: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1230: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1231: break;
1.43 kristaps 1232:
1233: /* Flush out leading punctuation. */
1234:
1.150 schwarze 1235: if (head == NULL && ac != ARGS_QWORD &&
1236: mdoc_isdelim(p) == DELIM_OPEN) {
1237: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1238: continue;
1.123 schwarze 1239: }
1.43 kristaps 1240:
1.150 schwarze 1241: if (head == NULL) {
1.190 ! schwarze 1242: head = roff_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1243: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1244: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1245: rew_last(mdoc, head);
1.190 ! schwarze 1246: roff_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1247: if (tok == MDOC_Eo)
1.43 kristaps 1248: continue;
1.1 kristaps 1249: }
1.43 kristaps 1250:
1.153 schwarze 1251: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1252: break;
1.1 kristaps 1253: }
1254:
1.43 kristaps 1255: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1256:
1.163 schwarze 1257: if (head == NULL) {
1.190 ! schwarze 1258: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
! 1259: roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1260: }
1.150 schwarze 1261: if (nl)
1262: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1263: }
1264:
1.151 schwarze 1265: static void
1.1 kristaps 1266: in_line_argn(MACRO_PROT_ARGS)
1267: {
1.53 kristaps 1268: struct mdoc_arg *arg;
1269: char *p;
1.181 schwarze 1270: enum margserr ac;
1.185 schwarze 1271: int ntok;
1.181 schwarze 1272: int state; /* arg#; -1: not yet open; -2: closed */
1273: int la, maxargs, nl;
1.1 kristaps 1274:
1.156 schwarze 1275: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1276:
1.46 kristaps 1277: /*
1278: * A line macro that has a fixed number of arguments (maxargs).
1279: * Only open the scope once the first non-leading-punctuation is
1280: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1281: * keep it open until the maximum number of arguments are
1282: * exhausted.
1283: */
1.1 kristaps 1284:
1285: switch (tok) {
1.131 schwarze 1286: case MDOC_Ap:
1.1 kristaps 1287: /* FALLTHROUGH */
1.131 schwarze 1288: case MDOC_Ns:
1.1 kristaps 1289: /* FALLTHROUGH */
1.131 schwarze 1290: case MDOC_Ux:
1.1 kristaps 1291: maxargs = 0;
1292: break;
1.131 schwarze 1293: case MDOC_Bx:
1.101 kristaps 1294: /* FALLTHROUGH */
1.132 schwarze 1295: case MDOC_Es:
1296: /* FALLTHROUGH */
1.131 schwarze 1297: case MDOC_Xr:
1.42 kristaps 1298: maxargs = 2;
1299: break;
1.1 kristaps 1300: default:
1301: maxargs = 1;
1302: break;
1303: }
1304:
1.152 schwarze 1305: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1306:
1.181 schwarze 1307: state = -1;
1.156 schwarze 1308: p = NULL;
1309: for (;;) {
1.32 kristaps 1310: la = *pos;
1.119 schwarze 1311: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181 schwarze 1312:
1313: if (ac == ARGS_WORD && state == -1 &&
1314: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1315: mdoc_isdelim(p) == DELIM_OPEN) {
1316: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1317: continue;
1318: }
1319:
1320: if (state == -1 && tok != MDOC_In &&
1321: tok != MDOC_St && tok != MDOC_Xr) {
1322: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1323: state = 0;
1324: }
1325:
1.156 schwarze 1326: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181 schwarze 1327: if (abs(state) < 2 && tok == MDOC_Pf)
1.156 schwarze 1328: mandoc_vmsg(MANDOCERR_PF_SKIP,
1329: mdoc->parse, line, ppos, "Pf %s",
1330: p == NULL ? "at eol" : p);
1.1 kristaps 1331: break;
1.156 schwarze 1332: }
1.1 kristaps 1333:
1.181 schwarze 1334: if (state == maxargs) {
1.149 schwarze 1335: rew_elem(mdoc, tok);
1.181 schwarze 1336: state = -2;
1.46 kristaps 1337: }
1338:
1.181 schwarze 1339: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.156 schwarze 1340: MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1341:
1.150 schwarze 1342: if (ntok != MDOC_MAX) {
1.181 schwarze 1343: if (state >= 0) {
1.149 schwarze 1344: rew_elem(mdoc, tok);
1.181 schwarze 1345: state = -2;
1346: }
1.151 schwarze 1347: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1348: break;
1349: }
1350:
1.181 schwarze 1351: if (ac == ARGS_QWORD ||
1352: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1353: mdoc_isdelim(p) == DELIM_NONE) {
1354: if (state == -1) {
1355: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1356: state = 1;
1357: } else if (state >= 0)
1358: state++;
1359: } else if (state >= 0) {
1.149 schwarze 1360: rew_elem(mdoc, tok);
1.181 schwarze 1361: state = -2;
1.1 kristaps 1362: }
1.42 kristaps 1363:
1.150 schwarze 1364: dword(mdoc, line, la, p, DELIM_MAX,
1365: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1366: }
1367:
1.181 schwarze 1368: if (state == -1) {
1369: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1370: line, ppos, mdoc_macronames[tok]);
1371: return;
1.156 schwarze 1372: }
1.181 schwarze 1373:
1374: if (state == 0 && tok == MDOC_Pf)
1375: append_delims(mdoc, line, pos, buf);
1376: if (state >= 0)
1.149 schwarze 1377: rew_elem(mdoc, tok);
1.150 schwarze 1378: if (nl)
1379: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1380: }
1381:
1.151 schwarze 1382: static void
1.1 kristaps 1383: in_line_eoln(MACRO_PROT_ARGS)
1384: {
1.185 schwarze 1385: struct roff_node *n;
1.170 schwarze 1386: struct mdoc_arg *arg;
1.1 kristaps 1387:
1.170 schwarze 1388: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1389: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1390: n = mdoc->last;
1.189 schwarze 1391: if (mdoc->next == ROFF_NEXT_SIBLING)
1.170 schwarze 1392: n = n->parent;
1393: if (n->tok == MDOC_Nm)
1394: rew_last(mdoc, mdoc->last->parent);
1.178 schwarze 1395: }
1396:
1.179 schwarze 1397: if (buf[*pos] == '\0' &&
1398: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178 schwarze 1399: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179 schwarze 1400: line, ppos, mdoc_macronames[tok]);
1.178 schwarze 1401: return;
1.170 schwarze 1402: }
1.90 schwarze 1403:
1.152 schwarze 1404: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1405: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1406: if (parse_rest(mdoc, tok, line, pos, buf))
1407: return;
1408: rew_elem(mdoc, tok);
1409: }
1410:
1411: /*
1412: * The simplest argument parser available: Parse the remaining
1413: * words until the end of the phrase or line and return 0
1414: * or until the next macro, call that macro, and return 1.
1415: */
1416: static int
1.189 schwarze 1417: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.154 schwarze 1418: {
1419: int la;
1.1 kristaps 1420:
1421: for (;;) {
1422: la = *pos;
1.153 schwarze 1423: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1424: return(0);
1.153 schwarze 1425: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1426: return(1);
1.1 kristaps 1427: }
1428: }
1429:
1.151 schwarze 1430: static void
1.41 kristaps 1431: ctx_synopsis(MACRO_PROT_ARGS)
1432: {
1.60 kristaps 1433:
1.151 schwarze 1434: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1435: in_line(mdoc, tok, line, ppos, pos, buf);
1436: else if (tok == MDOC_Nm)
1437: blk_full(mdoc, tok, line, ppos, pos, buf);
1438: else {
1439: assert(tok == MDOC_Vt);
1440: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1441: }
1.1 kristaps 1442: }
1443:
1.24 kristaps 1444: /*
1445: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1446: * They're unusual because they're basically free-form text until a
1447: * macro is encountered.
1448: */
1.151 schwarze 1449: static void
1.75 kristaps 1450: phrase_ta(MACRO_PROT_ARGS)
1451: {
1.185 schwarze 1452: struct roff_node *body, *n;
1.75 kristaps 1453:
1.121 schwarze 1454: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1455:
1.167 schwarze 1456: body = NULL;
1457: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 1458: if (n->flags & MDOC_ENDED)
1.167 schwarze 1459: continue;
1.184 schwarze 1460: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167 schwarze 1461: body = n;
1462: if (n->tok == MDOC_Bl)
1463: break;
1464: }
1465:
1.151 schwarze 1466: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1467: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1468: line, ppos, "Ta");
1.151 schwarze 1469: return;
1.121 schwarze 1470: }
1.75 kristaps 1471:
1.121 schwarze 1472: /* Advance to the next column. */
1.150 schwarze 1473:
1.167 schwarze 1474: rew_last(mdoc, body);
1.190 ! schwarze 1475: roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.154 schwarze 1476: parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75 kristaps 1477: }
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