Annotation of mandoc/mdoc_macro.c, Revision 1.193
1.193 ! schwarze 1: /* $Id: mdoc_macro.c,v 1.192 2015/04/19 14:25:41 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",
1.191 schwarze 235: * or as a line macro if from == TOKEN_NONE.
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:
1.191 schwarze 242: if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
1.153 schwarze 243: res = mdoc_hash_find(p);
1.191 schwarze 244: if (res != TOKEN_NONE) {
1.155 schwarze 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: }
1.191 schwarze 252: return(TOKEN_NONE);
1.1 kristaps 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) {
1.192 schwarze 435: roff_word_append(mdoc, p);
1.150 schwarze 436: return;
1.123 schwarze 437: }
438:
1.192 schwarze 439: roff_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;
1.191 schwarze 468: if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
469: ARGS_EOLN)
1.1 kristaps 470: break;
1.123 schwarze 471: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66 kristaps 472:
473: /*
474: * If we encounter end-of-sentence symbols, then trigger
475: * the double-space.
476: *
1.109 kristaps 477: * XXX: it's easy to allow this to propagate outward to
1.66 kristaps 478: * the last symbol, such that `. )' will cause the
479: * correct double-spacing. However, (1) groff isn't
480: * smart enough to do this and (2) it would require
481: * knowing which symbols break this behaviour, for
1.109 kristaps 482: * example, `. ;' shouldn't propagate the double-space.
1.66 kristaps 483: */
1.150 schwarze 484:
1.127 schwarze 485: if (mandoc_eos(p, strlen(p)))
1.119 schwarze 486: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 487: }
488: }
489:
490: /*
1.153 schwarze 491: * Parse one word.
492: * If it is a macro, call it and return 1.
493: * Otherwise, allocate it and return 0.
494: */
495: static int
496: macro_or_word(MACRO_PROT_ARGS, int parsed)
497: {
498: char *p;
1.185 schwarze 499: int ntok;
1.153 schwarze 500:
501: p = buf + ppos;
1.191 schwarze 502: ntok = TOKEN_NONE;
1.157 schwarze 503: if (*p == '"')
1.153 schwarze 504: p++;
1.157 schwarze 505: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155 schwarze 506: ntok = lookup(mdoc, tok, line, ppos, p);
1.153 schwarze 507:
1.191 schwarze 508: if (ntok == TOKEN_NONE) {
509: dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.153 schwarze 510: mdoc_macros[tok].flags & MDOC_JOIN);
511: return(0);
512: } else {
513: if (mdoc_macros[tok].fp == in_line_eoln)
514: rew_elem(mdoc, tok);
515: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.191 schwarze 516: if (tok == TOKEN_NONE)
1.153 schwarze 517: append_delims(mdoc, line, pos, buf);
518: return(1);
519: }
520: }
521:
522: /*
1.131 schwarze 523: * Close out block partial/full explicit.
1.1 kristaps 524: */
1.151 schwarze 525: static void
1.1 kristaps 526: blk_exp_close(MACRO_PROT_ARGS)
527: {
1.185 schwarze 528: struct roff_node *body; /* Our own body. */
529: struct roff_node *endbody; /* Our own end marker. */
530: struct roff_node *itblk; /* An It block starting later. */
531: struct roff_node *later; /* A sub-block starting later. */
532: struct roff_node *n; /* Search back to our block. */
1.188 schwarze 533: struct roff_node *target; /* For find_pending(). */
1.83 schwarze 534:
1.188 schwarze 535: int j, lastarg, maxargs, nl, pending;
1.55 kristaps 536: enum margserr ac;
1.185 schwarze 537: int atok, ntok;
1.1 kristaps 538: char *p;
539:
1.119 schwarze 540: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 541:
1.1 kristaps 542: switch (tok) {
1.131 schwarze 543: case MDOC_Ec:
1.1 kristaps 544: maxargs = 1;
545: break;
1.131 schwarze 546: case MDOC_Ek:
1.125 schwarze 547: mdoc->flags &= ~MDOC_KEEP;
1.151 schwarze 548: /* FALLTHROUGH */
1.1 kristaps 549: default:
550: maxargs = 0;
551: break;
552: }
553:
1.83 schwarze 554: /*
555: * Search backwards for beginnings of blocks,
556: * both of our own and of pending sub-blocks.
557: */
1.151 schwarze 558:
1.83 schwarze 559: atok = rew_alt(tok);
1.171 schwarze 560: body = endbody = itblk = later = NULL;
1.119 schwarze 561: for (n = mdoc->last; n; n = n->parent) {
1.183 schwarze 562: if (n->flags & MDOC_ENDED) {
563: if ( ! (n->flags & MDOC_VALID))
564: n->flags |= MDOC_BROKEN;
1.83 schwarze 565: continue;
1.183 schwarze 566: }
1.83 schwarze 567:
568: /* Remember the start of our own body. */
1.151 schwarze 569:
1.184 schwarze 570: if (n->type == ROFFT_BODY && atok == n->tok) {
1.175 schwarze 571: if (n->end == ENDBODY_NOT)
1.83 schwarze 572: body = n;
573: continue;
574: }
575:
1.184 schwarze 576: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.83 schwarze 577: continue;
1.160 schwarze 578:
579: if (n->tok == MDOC_It) {
1.171 schwarze 580: itblk = n;
1.160 schwarze 581: continue;
582: }
583:
1.83 schwarze 584: if (atok == n->tok) {
585: assert(body);
586:
587: /*
588: * Found the start of our own block.
589: * When there is no pending sub block,
590: * just proceed to closing out.
591: */
1.151 schwarze 592:
1.160 schwarze 593: if (later == NULL ||
1.171 schwarze 594: (tok == MDOC_El && itblk == NULL))
1.83 schwarze 595: break;
596:
1.131 schwarze 597: /*
1.167 schwarze 598: * When there is a pending sub block, postpone
599: * closing out the current block until the
600: * rew_pending() closing out the sub-block.
1.83 schwarze 601: * Mark the place where the formatting - but not
602: * the scope - of the current block ends.
603: */
1.151 schwarze 604:
1.183 schwarze 605: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
606: line, ppos, "%s breaks %s",
607: mdoc_macronames[atok],
608: mdoc_macronames[later->tok]);
609:
1.166 schwarze 610: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150 schwarze 611: atok, body, ENDBODY_SPACE);
1.151 schwarze 612:
1.183 schwarze 613: if (tok == MDOC_El)
614: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
615:
1.151 schwarze 616: /*
617: * If a block closing macro taking arguments
618: * breaks another block, put the arguments
1.166 schwarze 619: * into the end marker.
1.151 schwarze 620: */
621:
1.166 schwarze 622: if (maxargs)
1.189 schwarze 623: mdoc->next = ROFF_NEXT_CHILD;
1.83 schwarze 624: break;
1.182 schwarze 625: }
626:
627: /* Explicit blocks close out description lines. */
628:
629: if (n->tok == MDOC_Nd) {
630: rew_last(mdoc, n);
631: continue;
1.83 schwarze 632: }
633:
1.183 schwarze 634: /* Breaking an open sub block. */
1.151 schwarze 635:
1.183 schwarze 636: n->flags |= MDOC_BROKEN;
637: if (later == NULL)
1.83 schwarze 638: later = n;
639: }
1.166 schwarze 640:
641: if (body == NULL) {
642: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
643: line, ppos, mdoc_macronames[tok]);
644: if (maxargs && endbody == NULL) {
645: /*
646: * Stray .Ec without previous .Eo:
647: * Break the output line, keep the arguments.
648: */
1.193 ! schwarze 649: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.166 schwarze 650: rew_elem(mdoc, MDOC_br);
651: }
652: } else if (endbody == NULL) {
653: rew_last(mdoc, body);
654: if (maxargs)
655: mdoc_tail_alloc(mdoc, line, ppos, atok);
656: }
1.83 schwarze 657:
1.150 schwarze 658: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
659: if (buf[*pos] != '\0')
1.136 schwarze 660: mandoc_vmsg(MANDOCERR_ARG_SKIP,
661: mdoc->parse, line, ppos,
662: "%s %s", mdoc_macronames[tok],
663: buf + *pos);
1.171 schwarze 664: if (endbody == NULL && n != NULL)
1.167 schwarze 665: rew_pending(mdoc, n);
1.151 schwarze 666: return;
1.1 kristaps 667: }
668:
1.166 schwarze 669: if (endbody != NULL)
670: n = endbody;
1.148 schwarze 671: for (j = 0; ; j++) {
1.1 kristaps 672: lastarg = *pos;
673:
1.186 schwarze 674: if (j == maxargs && n != NULL)
675: rew_last(mdoc, n);
1.1 kristaps 676:
1.119 schwarze 677: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 678: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 679: break;
680:
1.191 schwarze 681: ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.155 schwarze 682: lookup(mdoc, tok, line, lastarg, p);
1.54 kristaps 683:
1.191 schwarze 684: if (ntok == TOKEN_NONE) {
1.150 schwarze 685: dword(mdoc, line, lastarg, p, DELIM_MAX,
686: MDOC_JOIN & mdoc_macros[tok].flags);
1.54 kristaps 687: continue;
688: }
1.1 kristaps 689:
1.186 schwarze 690: if (n != NULL)
691: rew_last(mdoc, n);
1.122 schwarze 692: mdoc->flags &= ~MDOC_NEWLINE;
1.151 schwarze 693: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54 kristaps 694: break;
1.1 kristaps 695: }
696:
1.188 schwarze 697: if (n != NULL) {
698: if (n != mdoc->last && n->flags & MDOC_BROKEN) {
699: target = n;
700: do
701: target = target->parent;
702: while ( ! (target->flags & MDOC_ENDED));
703: pending = find_pending(mdoc, ntok, line, ppos,
704: target);
705: } else
706: pending = 0;
707: if ( ! pending)
708: rew_pending(mdoc, n);
709: }
1.150 schwarze 710: if (nl)
711: append_delims(mdoc, line, pos, buf);
1.1 kristaps 712: }
713:
1.151 schwarze 714: static void
1.1 kristaps 715: in_line(MACRO_PROT_ARGS)
716: {
1.144 schwarze 717: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.185 schwarze 718: int ntok;
1.55 kristaps 719: enum margserr ac;
1.67 schwarze 720: enum mdelim d;
1.53 kristaps 721: struct mdoc_arg *arg;
722: char *p;
1.1 kristaps 723:
1.119 schwarze 724: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 725:
1.4 kristaps 726: /*
727: * Whether we allow ignored elements (those without content,
728: * usually because of reserved words) to squeak by.
729: */
1.45 kristaps 730:
1.4 kristaps 731: switch (tok) {
1.131 schwarze 732: case MDOC_An:
1.26 kristaps 733: /* FALLTHROUGH */
1.131 schwarze 734: case MDOC_Ar:
1.4 kristaps 735: /* FALLTHROUGH */
1.131 schwarze 736: case MDOC_Fl:
1.4 kristaps 737: /* FALLTHROUGH */
1.131 schwarze 738: case MDOC_Mt:
1.12 kristaps 739: /* FALLTHROUGH */
1.131 schwarze 740: case MDOC_Nm:
1.26 kristaps 741: /* FALLTHROUGH */
1.131 schwarze 742: case MDOC_Pa:
1.4 kristaps 743: nc = 1;
744: break;
745: default:
746: nc = 0;
747: break;
748: }
749:
1.152 schwarze 750: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 751:
1.144 schwarze 752: d = DELIM_NONE;
753: firstarg = 1;
1.142 schwarze 754: mayopen = 1;
1.70 kristaps 755: for (cnt = scope = 0;; ) {
1.1 kristaps 756: la = *pos;
1.119 schwarze 757: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 758:
1.144 schwarze 759: /*
760: * At the end of a macro line,
761: * opening delimiters do not suppress spacing.
762: */
763:
764: if (ac == ARGS_EOLN) {
765: if (d == DELIM_OPEN)
766: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 767: break;
1.144 schwarze 768: }
769:
770: /*
771: * The rest of the macro line is only punctuation,
772: * to be handled by append_delims().
773: * If there were no other arguments,
774: * do not allow the first one to suppress spacing,
775: * even if it turns out to be a closing one.
776: */
777:
778: if (ac == ARGS_PUNCT) {
1.176 schwarze 779: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144 schwarze 780: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 781: break;
1.144 schwarze 782: }
1.1 kristaps 783:
1.145 schwarze 784: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.191 schwarze 785: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1 kristaps 786:
1.131 schwarze 787: /*
1.4 kristaps 788: * In this case, we've located a submacro and must
789: * execute it. Close out scope, if open. If no
790: * elements have been generated, either create one (nc)
791: * or raise a warning.
792: */
1.1 kristaps 793:
1.191 schwarze 794: if (ntok != TOKEN_NONE) {
1.149 schwarze 795: if (scope)
796: rew_elem(mdoc, tok);
1.150 schwarze 797: if (nc && ! cnt) {
798: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149 schwarze 799: rew_last(mdoc, mdoc->last);
1.150 schwarze 800: } else if ( ! nc && ! cnt) {
1.7 kristaps 801: mdoc_argv_free(arg);
1.135 schwarze 802: mandoc_msg(MANDOCERR_MACRO_EMPTY,
803: mdoc->parse, line, ppos,
804: mdoc_macronames[tok]);
1.7 kristaps 805: }
1.151 schwarze 806: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150 schwarze 807: if (nl)
808: append_delims(mdoc, line, pos, buf);
1.151 schwarze 809: return;
1.131 schwarze 810: }
1.1 kristaps 811:
1.131 schwarze 812: /*
1.4 kristaps 813: * Non-quote-enclosed punctuation. Set up our scope, if
814: * a word; rewind the scope, if a delimiter; then append
1.131 schwarze 815: * the word.
1.4 kristaps 816: */
1.1 kristaps 817:
1.150 schwarze 818: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3 kristaps 819:
1.70 kristaps 820: if (DELIM_NONE != d) {
821: /*
822: * If we encounter closing punctuation, no word
1.144 schwarze 823: * has been emitted, no scope is open, and we're
1.70 kristaps 824: * allowed to have an empty element, then start
1.142 schwarze 825: * a new scope.
1.70 kristaps 826: */
1.142 schwarze 827: if ((d == DELIM_CLOSE ||
828: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144 schwarze 829: !cnt && !scope && nc && mayopen) {
1.150 schwarze 830: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 831: scope = 1;
1.142 schwarze 832: cnt++;
1.150 schwarze 833: if (tok == MDOC_Nm)
1.142 schwarze 834: mayopen = 0;
1.70 kristaps 835: }
836: /*
837: * Close out our scope, if one is open, before
838: * any punctuation.
839: */
1.149 schwarze 840: if (scope)
841: rew_elem(mdoc, tok);
1.70 kristaps 842: scope = 0;
1.145 schwarze 843: if (tok == MDOC_Fn)
844: mayopen = 0;
1.142 schwarze 845: } else if (mayopen && !scope) {
1.150 schwarze 846: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70 kristaps 847: scope = 1;
1.142 schwarze 848: cnt++;
1.1 kristaps 849: }
1.105 kristaps 850:
1.150 schwarze 851: dword(mdoc, line, la, p, d,
852: MDOC_JOIN & mdoc_macros[tok].flags);
1.39 kristaps 853:
854: /*
1.144 schwarze 855: * If the first argument is a closing delimiter,
856: * do not suppress spacing before it.
857: */
858:
859: if (firstarg && d == DELIM_CLOSE && !nc)
860: mdoc->last->flags &= ~MDOC_DELIMC;
861: firstarg = 0;
862:
863: /*
1.39 kristaps 864: * `Fl' macros have their scope re-opened with each new
865: * word so that the `-' can be added to each one without
866: * having to parse out spaces.
867: */
1.150 schwarze 868: if (scope && tok == MDOC_Fl) {
1.149 schwarze 869: rew_elem(mdoc, tok);
1.70 kristaps 870: scope = 0;
1.39 kristaps 871: }
1.1 kristaps 872: }
873:
1.149 schwarze 874: if (scope)
875: rew_elem(mdoc, tok);
1.4 kristaps 876:
877: /*
878: * If no elements have been collected and we're allowed to have
879: * empties (nc), open a scope and close it out. Otherwise,
880: * raise a warning.
881: */
1.45 kristaps 882:
1.150 schwarze 883: if ( ! cnt) {
884: if (nc) {
885: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
886: rew_last(mdoc, mdoc->last);
887: } else {
888: mdoc_argv_free(arg);
889: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
890: line, ppos, mdoc_macronames[tok]);
891: }
1.7 kristaps 892: }
1.150 schwarze 893: if (nl)
894: append_delims(mdoc, line, pos, buf);
1.1 kristaps 895: }
896:
1.151 schwarze 897: static void
1.1 kristaps 898: blk_full(MACRO_PROT_ARGS)
899: {
1.153 schwarze 900: int la, nl, parsed;
1.1 kristaps 901: struct mdoc_arg *arg;
1.185 schwarze 902: struct roff_node *blk; /* Our own or a broken block. */
903: struct roff_node *head; /* Our own head. */
904: struct roff_node *body; /* Our own body. */
905: struct roff_node *n;
1.59 kristaps 906: enum margserr ac, lac;
1.1 kristaps 907: char *p;
908:
1.119 schwarze 909: nl = MDOC_NEWLINE & mdoc->flags;
1.138 schwarze 910:
1.177 schwarze 911: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
912: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
913: line, ppos, mdoc_macronames[tok]);
914: return;
915: }
916:
1.171 schwarze 917: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
918:
919: /* Here, tok is one of Sh Ss Nm Nd It. */
920:
921: blk = NULL;
922: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 923: if (n->flags & MDOC_ENDED) {
924: if ( ! (n->flags & MDOC_VALID))
925: n->flags |= MDOC_BROKEN;
926: continue;
927: }
1.184 schwarze 928: if (n->type != ROFFT_BLOCK)
1.171 schwarze 929: continue;
1.183 schwarze 930:
1.171 schwarze 931: if (tok == MDOC_It && n->tok == MDOC_Bl) {
932: if (blk != NULL) {
933: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
934: mdoc->parse, line, ppos,
935: "It breaks %s",
936: mdoc_macronames[blk->tok]);
937: rew_pending(mdoc, blk);
938: }
939: break;
940: }
941:
942: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
943: switch (tok) {
944: case MDOC_Sh:
945: /* FALLTHROUGH */
946: case MDOC_Ss:
947: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
948: mdoc->parse, line, ppos,
949: "%s breaks %s",
950: mdoc_macronames[tok],
951: mdoc_macronames[n->tok]);
952: rew_pending(mdoc, n);
1.180 schwarze 953: n = mdoc->last;
1.171 schwarze 954: continue;
955: case MDOC_It:
956: /* Delay in case it's astray. */
957: blk = n;
958: continue;
959: default:
960: break;
961: }
962: break;
963: }
964:
965: /* Here, n is one of Sh Ss Nm Nd It. */
1.138 schwarze 966:
1.171 schwarze 967: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
968: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
969: (tok != MDOC_It && n->tok == MDOC_It)))))
1.138 schwarze 970: break;
1.171 schwarze 971:
972: /* Item breaking an explicit block. */
973:
974: if (blk != NULL) {
975: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
976: mdoc->parse, line, ppos,
977: "It breaks %s",
978: mdoc_macronames[blk->tok]);
979: rew_pending(mdoc, blk);
1.172 schwarze 980: blk = NULL;
1.171 schwarze 981: }
982:
983: /* Close out prior implicit scopes. */
984:
985: rew_last(mdoc, n);
986: }
987:
988: /* Skip items outside lists. */
989:
990: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138 schwarze 991: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
992: line, ppos, "It %s", buf + *pos);
1.193 ! schwarze 993: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.149 schwarze 994: rew_elem(mdoc, MDOC_br);
1.151 schwarze 995: return;
1.138 schwarze 996: }
1.1 kristaps 997: }
998:
1.45 kristaps 999: /*
1.109 kristaps 1000: * This routine accommodates implicitly- and explicitly-scoped
1.45 kristaps 1001: * macro openings. Implicit ones first close out prior scope
1002: * (seen above). Delay opening the head until necessary to
1003: * allow leading punctuation to print. Special consideration
1004: * for `It -column', which has phrase-part syntax instead of
1005: * regular child nodes.
1006: */
1007:
1.152 schwarze 1008: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165 schwarze 1009: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49 kristaps 1010: head = body = NULL;
1.115 schwarze 1011:
1012: /*
1013: * Exception: Heads of `It' macros in `-diag' lists are not
1014: * parsed, even though `It' macros in general are parsed.
1015: */
1.151 schwarze 1016:
1.153 schwarze 1017: parsed = tok != MDOC_It ||
1018: mdoc->last->parent->tok != MDOC_Bl ||
1019: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1 kristaps 1020:
1.45 kristaps 1021: /*
1022: * The `Nd' macro has all arguments in its body: it's a hybrid
1023: * of block partial-explicit and full-implicit. Stupid.
1024: */
1.19 kristaps 1025:
1.150 schwarze 1026: if (tok == MDOC_Nd) {
1.190 schwarze 1027: head = roff_head_alloc(mdoc, line, ppos, tok);
1.162 schwarze 1028: rew_last(mdoc, head);
1.190 schwarze 1029: body = roff_body_alloc(mdoc, line, ppos, tok);
1.123 schwarze 1030: }
1031:
1.150 schwarze 1032: if (tok == MDOC_Bk)
1.123 schwarze 1033: mdoc->flags |= MDOC_KEEP;
1.19 kristaps 1034:
1.150 schwarze 1035: ac = ARGS_PEND;
1036: for (;;) {
1.45 kristaps 1037: la = *pos;
1.150 schwarze 1038: lac = ac;
1.119 schwarze 1039: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1040: if (ac == ARGS_EOLN) {
1041: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75 kristaps 1042: break;
1043: /*
1044: * This is necessary: if the last token on a
1045: * line is a `Ta' or tab, then we'll get
1046: * ARGS_EOLN, so we must be smart enough to
1047: * reopen our scope if the last parse was a
1048: * phrase or partial phrase.
1049: */
1.167 schwarze 1050: if (body != NULL)
1051: rew_last(mdoc, body);
1.190 schwarze 1052: body = roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1053: break;
1.75 kristaps 1054: }
1.174 schwarze 1055: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1056: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1057: mdoc->parse, line, la, "%s ... %s",
1058: mdoc_macronames[tok], buf + la);
1059: break;
1060: }
1.173 schwarze 1061: if (tok == MDOC_Rs) {
1062: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1063: line, la, "Rs %s", buf + la);
1064: break;
1065: }
1066: if (ac == ARGS_PUNCT)
1067: break;
1.45 kristaps 1068:
1.131 schwarze 1069: /*
1.73 kristaps 1070: * Emit leading punctuation (i.e., punctuation before
1.184 schwarze 1071: * the ROFFT_HEAD) for non-phrase types.
1.73 kristaps 1072: */
1.45 kristaps 1073:
1.150 schwarze 1074: if (head == NULL &&
1075: ac != ARGS_PEND &&
1076: ac != ARGS_PHRASE &&
1077: ac != ARGS_PPHRASE &&
1078: ac != ARGS_QWORD &&
1079: mdoc_isdelim(p) == DELIM_OPEN) {
1080: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45 kristaps 1081: continue;
1082: }
1083:
1.74 kristaps 1084: /* Open a head if one hasn't been opened. */
1.45 kristaps 1085:
1.150 schwarze 1086: if (head == NULL)
1.190 schwarze 1087: head = roff_head_alloc(mdoc, line, ppos, tok);
1.45 kristaps 1088:
1.150 schwarze 1089: if (ac == ARGS_PHRASE ||
1090: ac == ARGS_PEND ||
1091: ac == ARGS_PPHRASE) {
1.151 schwarze 1092:
1.73 kristaps 1093: /*
1.74 kristaps 1094: * If we haven't opened a body yet, rewind the
1095: * head; if we have, rewind that instead.
1096: */
1097:
1.167 schwarze 1098: rew_last(mdoc, body == NULL ? head : body);
1.190 schwarze 1099: body = roff_body_alloc(mdoc, line, ppos, tok);
1.74 kristaps 1100:
1101: /*
1.73 kristaps 1102: * Process phrases: set whether we're in a
1103: * partial-phrase (this effects line handling)
1104: * then call down into the phrase parser.
1105: */
1.74 kristaps 1106:
1.150 schwarze 1107: if (ac == ARGS_PPHRASE)
1.119 schwarze 1108: mdoc->flags |= MDOC_PPHRASE;
1.150 schwarze 1109: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119 schwarze 1110: mdoc->flags |= MDOC_PPHRASE;
1.191 schwarze 1111: parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.119 schwarze 1112: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1113: continue;
1114: }
1115:
1.153 schwarze 1116: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151 schwarze 1117: break;
1.45 kristaps 1118: }
1.1 kristaps 1119:
1.165 schwarze 1120: if (blk->flags & MDOC_VALID)
1121: return;
1.150 schwarze 1122: if (head == NULL)
1.190 schwarze 1123: head = roff_head_alloc(mdoc, line, ppos, tok);
1.174 schwarze 1124: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150 schwarze 1125: append_delims(mdoc, line, pos, buf);
1.151 schwarze 1126: if (body != NULL)
1.77 kristaps 1127: goto out;
1.187 schwarze 1128: if (find_pending(mdoc, tok, line, ppos, head))
1.183 schwarze 1129: return;
1.47 kristaps 1130:
1.45 kristaps 1131: /* Close out scopes to remain in a consistent state. */
1132:
1.167 schwarze 1133: rew_last(mdoc, head);
1.190 schwarze 1134: body = roff_body_alloc(mdoc, line, ppos, tok);
1.77 kristaps 1135: out:
1.150 schwarze 1136: if (mdoc->flags & MDOC_FREECOL) {
1.167 schwarze 1137: rew_last(mdoc, body);
1138: rew_last(mdoc, blk);
1.150 schwarze 1139: mdoc->flags &= ~MDOC_FREECOL;
1140: }
1.1 kristaps 1141: }
1142:
1.151 schwarze 1143: static void
1.1 kristaps 1144: blk_part_imp(MACRO_PROT_ARGS)
1145: {
1.63 kristaps 1146: int la, nl;
1.55 kristaps 1147: enum margserr ac;
1.1 kristaps 1148: char *p;
1.185 schwarze 1149: struct roff_node *blk; /* saved block context */
1150: struct roff_node *body; /* saved body context */
1151: struct roff_node *n;
1.1 kristaps 1152:
1.119 schwarze 1153: nl = MDOC_NEWLINE & mdoc->flags;
1.63 kristaps 1154:
1.43 kristaps 1155: /*
1156: * A macro that spans to the end of the line. This is generally
1157: * (but not necessarily) called as the first macro. The block
1158: * has a head as the immediate child, which is always empty,
1159: * followed by zero or more opening punctuation nodes, then the
1160: * body (which may be empty, depending on the macro), then zero
1161: * or more closing punctuation nodes.
1162: */
1.32 kristaps 1163:
1.150 schwarze 1164: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.190 schwarze 1165: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1166:
1.43 kristaps 1167: /*
1168: * Open the body scope "on-demand", that is, after we've
1169: * processed all our the leading delimiters (open parenthesis,
1170: * etc.).
1171: */
1.1 kristaps 1172:
1.43 kristaps 1173: for (body = NULL; ; ) {
1.32 kristaps 1174: la = *pos;
1.119 schwarze 1175: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1176: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1177: break;
1178:
1.150 schwarze 1179: if (body == NULL && ac != ARGS_QWORD &&
1180: mdoc_isdelim(p) == DELIM_OPEN) {
1181: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1182: continue;
1.123 schwarze 1183: }
1.1 kristaps 1184:
1.150 schwarze 1185: if (body == NULL)
1.190 schwarze 1186: body = roff_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1187:
1.153 schwarze 1188: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1189: break;
1.1 kristaps 1190: }
1.150 schwarze 1191: if (body == NULL)
1.190 schwarze 1192: body = roff_body_alloc(mdoc, line, ppos, tok);
1.43 kristaps 1193:
1.187 schwarze 1194: if (find_pending(mdoc, tok, line, ppos, body))
1.183 schwarze 1195: return;
1196:
1.164 schwarze 1197: rew_last(mdoc, body);
1.150 schwarze 1198: if (nl)
1199: append_delims(mdoc, line, pos, buf);
1.166 schwarze 1200: rew_pending(mdoc, blk);
1.117 schwarze 1201:
1202: /* Move trailing .Ns out of scope. */
1203:
1204: for (n = body->child; n && n->next; n = n->next)
1205: /* Do nothing. */ ;
1.150 schwarze 1206: if (n && n->tok == MDOC_Ns)
1.119 schwarze 1207: mdoc_node_relink(mdoc, n);
1.1 kristaps 1208: }
1209:
1.151 schwarze 1210: static void
1.1 kristaps 1211: blk_part_exp(MACRO_PROT_ARGS)
1212: {
1.60 kristaps 1213: int la, nl;
1.55 kristaps 1214: enum margserr ac;
1.185 schwarze 1215: struct roff_node *head; /* keep track of head */
1.1 kristaps 1216: char *p;
1217:
1.119 schwarze 1218: nl = MDOC_NEWLINE & mdoc->flags;
1.60 kristaps 1219:
1.43 kristaps 1220: /*
1221: * The opening of an explicit macro having zero or more leading
1222: * punctuation nodes; a head with optional single element (the
1223: * case of `Eo'); and a body that may be empty.
1224: */
1.32 kristaps 1225:
1.193 ! schwarze 1226: roff_block_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1227: head = NULL;
1228: for (;;) {
1.32 kristaps 1229: la = *pos;
1.119 schwarze 1230: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150 schwarze 1231: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1232: break;
1.43 kristaps 1233:
1234: /* Flush out leading punctuation. */
1235:
1.150 schwarze 1236: if (head == NULL && ac != ARGS_QWORD &&
1237: mdoc_isdelim(p) == DELIM_OPEN) {
1238: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43 kristaps 1239: continue;
1.123 schwarze 1240: }
1.43 kristaps 1241:
1.150 schwarze 1242: if (head == NULL) {
1.190 schwarze 1243: head = roff_head_alloc(mdoc, line, ppos, tok);
1.163 schwarze 1244: if (tok == MDOC_Eo) /* Not parsed. */
1.150 schwarze 1245: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163 schwarze 1246: rew_last(mdoc, head);
1.190 schwarze 1247: roff_body_alloc(mdoc, line, ppos, tok);
1.150 schwarze 1248: if (tok == MDOC_Eo)
1.43 kristaps 1249: continue;
1.1 kristaps 1250: }
1.43 kristaps 1251:
1.153 schwarze 1252: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151 schwarze 1253: break;
1.1 kristaps 1254: }
1255:
1.43 kristaps 1256: /* Clean-up to leave in a consistent state. */
1.32 kristaps 1257:
1.163 schwarze 1258: if (head == NULL) {
1.190 schwarze 1259: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1260: roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1261: }
1.150 schwarze 1262: if (nl)
1263: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1264: }
1265:
1.151 schwarze 1266: static void
1.1 kristaps 1267: in_line_argn(MACRO_PROT_ARGS)
1268: {
1.53 kristaps 1269: struct mdoc_arg *arg;
1270: char *p;
1.181 schwarze 1271: enum margserr ac;
1.185 schwarze 1272: int ntok;
1.181 schwarze 1273: int state; /* arg#; -1: not yet open; -2: closed */
1274: int la, maxargs, nl;
1.1 kristaps 1275:
1.156 schwarze 1276: nl = mdoc->flags & MDOC_NEWLINE;
1.60 kristaps 1277:
1.46 kristaps 1278: /*
1279: * A line macro that has a fixed number of arguments (maxargs).
1280: * Only open the scope once the first non-leading-punctuation is
1281: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1282: * keep it open until the maximum number of arguments are
1283: * exhausted.
1284: */
1.1 kristaps 1285:
1286: switch (tok) {
1.131 schwarze 1287: case MDOC_Ap:
1.1 kristaps 1288: /* FALLTHROUGH */
1.131 schwarze 1289: case MDOC_Ns:
1.1 kristaps 1290: /* FALLTHROUGH */
1.131 schwarze 1291: case MDOC_Ux:
1.1 kristaps 1292: maxargs = 0;
1293: break;
1.131 schwarze 1294: case MDOC_Bx:
1.101 kristaps 1295: /* FALLTHROUGH */
1.132 schwarze 1296: case MDOC_Es:
1297: /* FALLTHROUGH */
1.131 schwarze 1298: case MDOC_Xr:
1.42 kristaps 1299: maxargs = 2;
1300: break;
1.1 kristaps 1301: default:
1302: maxargs = 1;
1303: break;
1304: }
1305:
1.152 schwarze 1306: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1307:
1.181 schwarze 1308: state = -1;
1.156 schwarze 1309: p = NULL;
1310: for (;;) {
1.32 kristaps 1311: la = *pos;
1.119 schwarze 1312: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181 schwarze 1313:
1314: if (ac == ARGS_WORD && state == -1 &&
1315: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1316: mdoc_isdelim(p) == DELIM_OPEN) {
1317: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1318: continue;
1319: }
1320:
1321: if (state == -1 && tok != MDOC_In &&
1322: tok != MDOC_St && tok != MDOC_Xr) {
1323: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1324: state = 0;
1325: }
1326:
1.156 schwarze 1327: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181 schwarze 1328: if (abs(state) < 2 && tok == MDOC_Pf)
1.156 schwarze 1329: mandoc_vmsg(MANDOCERR_PF_SKIP,
1330: mdoc->parse, line, ppos, "Pf %s",
1331: p == NULL ? "at eol" : p);
1.1 kristaps 1332: break;
1.156 schwarze 1333: }
1.1 kristaps 1334:
1.181 schwarze 1335: if (state == maxargs) {
1.149 schwarze 1336: rew_elem(mdoc, tok);
1.181 schwarze 1337: state = -2;
1.46 kristaps 1338: }
1339:
1.181 schwarze 1340: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.191 schwarze 1341: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.54 kristaps 1342:
1.191 schwarze 1343: if (ntok != TOKEN_NONE) {
1.181 schwarze 1344: if (state >= 0) {
1.149 schwarze 1345: rew_elem(mdoc, tok);
1.181 schwarze 1346: state = -2;
1347: }
1.151 schwarze 1348: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1349: break;
1350: }
1351:
1.181 schwarze 1352: if (ac == ARGS_QWORD ||
1353: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1354: mdoc_isdelim(p) == DELIM_NONE) {
1355: if (state == -1) {
1356: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1357: state = 1;
1358: } else if (state >= 0)
1359: state++;
1360: } else if (state >= 0) {
1.149 schwarze 1361: rew_elem(mdoc, tok);
1.181 schwarze 1362: state = -2;
1.1 kristaps 1363: }
1.42 kristaps 1364:
1.150 schwarze 1365: dword(mdoc, line, la, p, DELIM_MAX,
1366: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1367: }
1368:
1.181 schwarze 1369: if (state == -1) {
1370: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1371: line, ppos, mdoc_macronames[tok]);
1372: return;
1.156 schwarze 1373: }
1.181 schwarze 1374:
1375: if (state == 0 && tok == MDOC_Pf)
1376: append_delims(mdoc, line, pos, buf);
1377: if (state >= 0)
1.149 schwarze 1378: rew_elem(mdoc, tok);
1.150 schwarze 1379: if (nl)
1380: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1381: }
1382:
1.151 schwarze 1383: static void
1.1 kristaps 1384: in_line_eoln(MACRO_PROT_ARGS)
1385: {
1.185 schwarze 1386: struct roff_node *n;
1.170 schwarze 1387: struct mdoc_arg *arg;
1.1 kristaps 1388:
1.170 schwarze 1389: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1390: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1391: n = mdoc->last;
1.189 schwarze 1392: if (mdoc->next == ROFF_NEXT_SIBLING)
1.170 schwarze 1393: n = n->parent;
1394: if (n->tok == MDOC_Nm)
1395: rew_last(mdoc, mdoc->last->parent);
1.178 schwarze 1396: }
1397:
1.179 schwarze 1398: if (buf[*pos] == '\0' &&
1399: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178 schwarze 1400: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179 schwarze 1401: line, ppos, mdoc_macronames[tok]);
1.178 schwarze 1402: return;
1.170 schwarze 1403: }
1.90 schwarze 1404:
1.152 schwarze 1405: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150 schwarze 1406: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154 schwarze 1407: if (parse_rest(mdoc, tok, line, pos, buf))
1408: return;
1409: rew_elem(mdoc, tok);
1410: }
1411:
1412: /*
1413: * The simplest argument parser available: Parse the remaining
1414: * words until the end of the phrase or line and return 0
1415: * or until the next macro, call that macro, and return 1.
1416: */
1417: static int
1.189 schwarze 1418: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.154 schwarze 1419: {
1420: int la;
1.1 kristaps 1421:
1422: for (;;) {
1423: la = *pos;
1.153 schwarze 1424: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154 schwarze 1425: return(0);
1.153 schwarze 1426: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154 schwarze 1427: return(1);
1.1 kristaps 1428: }
1429: }
1430:
1.151 schwarze 1431: static void
1.41 kristaps 1432: ctx_synopsis(MACRO_PROT_ARGS)
1433: {
1.60 kristaps 1434:
1.151 schwarze 1435: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1436: in_line(mdoc, tok, line, ppos, pos, buf);
1437: else if (tok == MDOC_Nm)
1438: blk_full(mdoc, tok, line, ppos, pos, buf);
1439: else {
1440: assert(tok == MDOC_Vt);
1441: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1442: }
1.1 kristaps 1443: }
1444:
1.24 kristaps 1445: /*
1446: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1447: * They're unusual because they're basically free-form text until a
1448: * macro is encountered.
1449: */
1.151 schwarze 1450: static void
1.75 kristaps 1451: phrase_ta(MACRO_PROT_ARGS)
1452: {
1.185 schwarze 1453: struct roff_node *body, *n;
1.75 kristaps 1454:
1.121 schwarze 1455: /* Make sure we are in a column list or ignore this macro. */
1.151 schwarze 1456:
1.167 schwarze 1457: body = NULL;
1458: for (n = mdoc->last; n != NULL; n = n->parent) {
1.183 schwarze 1459: if (n->flags & MDOC_ENDED)
1.167 schwarze 1460: continue;
1.184 schwarze 1461: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167 schwarze 1462: body = n;
1463: if (n->tok == MDOC_Bl)
1464: break;
1465: }
1466:
1.151 schwarze 1467: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137 schwarze 1468: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139 schwarze 1469: line, ppos, "Ta");
1.151 schwarze 1470: return;
1.121 schwarze 1471: }
1.75 kristaps 1472:
1.121 schwarze 1473: /* Advance to the next column. */
1.150 schwarze 1474:
1.167 schwarze 1475: rew_last(mdoc, body);
1.190 schwarze 1476: roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.191 schwarze 1477: parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.75 kristaps 1478: }
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