Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.152
1.152 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.151 2015/04/23 15:35:39 schwarze Exp $ */
1.1 kristaps 2: /*
1.74 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.118 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
1.2 schwarze 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: *
1.140 schwarze 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.2 schwarze 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.140 schwarze 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.2 schwarze 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: */
1.100 schwarze 18: #include <sys/types.h>
19:
1.1 kristaps 20: #include <assert.h>
21: #include <ctype.h>
22: #include <stdlib.h>
23: #include <stdio.h>
24: #include <string.h>
1.26 schwarze 25: #include <time.h>
1.1 kristaps 26:
1.140 schwarze 27: #include "mandoc.h"
28: #include "roff.h"
1.66 schwarze 29: #include "mdoc.h"
1.140 schwarze 30: #include "libmandoc.h"
1.146 schwarze 31: #include "roff_int.h"
1.1 kristaps 32: #include "libmdoc.h"
33:
1.107 schwarze 34: static void blk_full(MACRO_PROT_ARGS);
35: static void blk_exp_close(MACRO_PROT_ARGS);
36: static void blk_part_exp(MACRO_PROT_ARGS);
37: static void blk_part_imp(MACRO_PROT_ARGS);
38: static void ctx_synopsis(MACRO_PROT_ARGS);
39: static void in_line_eoln(MACRO_PROT_ARGS);
40: static void in_line_argn(MACRO_PROT_ARGS);
41: static void in_line(MACRO_PROT_ARGS);
42: static void phrase_ta(MACRO_PROT_ARGS);
1.36 schwarze 43:
1.145 schwarze 44: static void append_delims(struct roff_man *, int, int *, char *);
45: static void dword(struct roff_man *, int, int, const char *,
1.143 schwarze 46: enum mdelim, int);
1.145 schwarze 47: static int find_pending(struct roff_man *, int, int, int,
1.143 schwarze 48: struct roff_node *);
1.145 schwarze 49: static int lookup(struct roff_man *, int, int, int, const char *);
1.109 schwarze 50: static int macro_or_word(MACRO_PROT_ARGS, int);
1.145 schwarze 51: static int parse_rest(struct roff_man *, int, int, int *, char *);
1.141 schwarze 52: static int rew_alt(int);
1.145 schwarze 53: static void rew_elem(struct roff_man *, int);
54: static void rew_last(struct roff_man *, const struct roff_node *);
55: static void rew_pending(struct roff_man *,
56: const struct roff_node *);
1.1 kristaps 57:
58: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.80 schwarze 59: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 60: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
61: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
62: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.80 schwarze 63: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
64: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
65: { in_line_eoln, 0 }, /* Pp */
66: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
67: { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1 kristaps 68: { blk_full, MDOC_EXPLICIT }, /* Bd */
1.80 schwarze 69: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 70: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.80 schwarze 71: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
72: { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
73: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
74: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1 kristaps 75: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.86 schwarze 76: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 77: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.80 schwarze 78: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
79: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 81: { in_line_eoln, 0 }, /* Ex */
1.80 schwarze 82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
83: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.80 schwarze 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.85 schwarze 87: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.11 schwarze 88: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.80 schwarze 89: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
90: { blk_full, MDOC_JOIN }, /* Nd */
91: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 92: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.89 schwarze 93: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 94: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
95: { in_line_eoln, 0 }, /* Rv */
1.80 schwarze 96: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.80 schwarze 98: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.28 schwarze 99: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.80 schwarze 100: { in_line_eoln, MDOC_JOIN }, /* %A */
101: { in_line_eoln, MDOC_JOIN }, /* %B */
102: { in_line_eoln, MDOC_JOIN }, /* %D */
103: { in_line_eoln, MDOC_JOIN }, /* %I */
104: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 105: { in_line_eoln, 0 }, /* %N */
1.80 schwarze 106: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 107: { in_line_eoln, 0 }, /* %P */
1.80 schwarze 108: { in_line_eoln, MDOC_JOIN }, /* %R */
109: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 110: { in_line_eoln, 0 }, /* %V */
1.80 schwarze 111: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
112: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
113: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
114: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
115: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 116: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.80 schwarze 117: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
118: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
119: { blk_full, MDOC_EXPLICIT }, /* Bf */
120: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
121: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
122: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 123: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
124: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
125: { in_line_eoln, 0 }, /* Db */
1.80 schwarze 126: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
127: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
128: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
129: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
130: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
131: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
132: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
133: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 134: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
135: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 136: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.100 schwarze 137: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.80 schwarze 138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
139: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.80 schwarze 142: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
143: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.35 schwarze 144: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.80 schwarze 145: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
146: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
147: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
148: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
149: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
150: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
151: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
152: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
153: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
154: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 155: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.80 schwarze 156: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
157: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
158: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
159: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
160: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.103 schwarze 161: { in_line_argn, 0 }, /* Sm */
1.80 schwarze 162: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
163: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 164: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.80 schwarze 165: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 166: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
167: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.80 schwarze 168: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
169: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
170: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
171: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
172: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
173: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
174: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 175: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.80 schwarze 176: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 177: { in_line_eoln, 0 }, /* Bt */
178: { in_line_eoln, 0 }, /* Hf */
1.89 schwarze 179: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 180: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 181: { in_line, 0 }, /* Lb */
1.80 schwarze 182: { in_line_eoln, 0 }, /* Lp */
183: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
184: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
185: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
186: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
187: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
188: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
189: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
190: { in_line_eoln, MDOC_JOIN }, /* %C */
1.89 schwarze 191: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
192: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 193: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.80 schwarze 194: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.13 schwarze 195: { in_line_eoln, 0 }, /* br */
196: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 197: { in_line_eoln, 0 }, /* %U */
1.80 schwarze 198: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.99 schwarze 199: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 200: };
201:
202: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
203:
204:
205: /*
206: * This is called at the end of parsing. It must traverse up the tree,
207: * closing out open [implicit] scopes. Obviously, open explicit scopes
208: * are errors.
209: */
1.107 schwarze 210: void
1.151 schwarze 211: mdoc_endparse(struct roff_man *mdoc)
1.1 kristaps 212: {
1.141 schwarze 213: struct roff_node *n;
1.1 kristaps 214:
215: /* Scan for open explicit scopes. */
216:
1.107 schwarze 217: n = mdoc->last->flags & MDOC_VALID ?
1.88 schwarze 218: mdoc->last->parent : mdoc->last;
1.1 kristaps 219:
1.56 schwarze 220: for ( ; n; n = n->parent)
1.140 schwarze 221: if (n->type == ROFFT_BLOCK &&
1.107 schwarze 222: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.94 schwarze 223: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
224: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 225:
1.22 schwarze 226: /* Rewind to the first. */
227:
1.105 schwarze 228: rew_last(mdoc, mdoc->first);
1.1 kristaps 229: }
230:
1.22 schwarze 231: /*
1.109 schwarze 232: * Look up the macro at *p called by "from",
1.147 schwarze 233: * or as a line macro if from == TOKEN_NONE.
1.22 schwarze 234: */
1.141 schwarze 235: static int
1.145 schwarze 236: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.21 schwarze 237: {
1.141 schwarze 238: int res;
1.1 kristaps 239:
1.147 schwarze 240: if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
1.109 schwarze 241: res = mdoc_hash_find(p);
1.147 schwarze 242: if (res != TOKEN_NONE) {
1.111 schwarze 243: if (mdoc_macros[res].flags & MDOC_CALLABLE)
244: return(res);
245: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
246: mandoc_msg(MANDOCERR_MACRO_CALL,
247: mdoc->parse, line, ppos, p);
248: }
1.109 schwarze 249: }
1.147 schwarze 250: return(TOKEN_NONE);
1.1 kristaps 251: }
252:
1.122 schwarze 253: /*
254: * Rewind up to and including a specific node.
255: */
1.105 schwarze 256: static void
1.145 schwarze 257: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1 kristaps 258: {
1.141 schwarze 259: struct roff_node *n, *np;
1.1 kristaps 260:
1.142 schwarze 261: if (to->flags & MDOC_VALID)
262: return;
263:
1.145 schwarze 264: mdoc->next = ROFF_NEXT_SIBLING;
1.1 kristaps 265: while (mdoc->last != to) {
1.63 schwarze 266: /*
267: * Save the parent here, because we may delete the
1.76 schwarze 268: * mdoc->last node in the post-validation phase and reset
269: * it to mdoc->last->parent, causing a step in the closing
1.63 schwarze 270: * out to be lost.
271: */
272: np = mdoc->last->parent;
1.105 schwarze 273: mdoc_valid_post(mdoc);
1.61 schwarze 274: n = mdoc->last;
1.63 schwarze 275: mdoc->last = np;
1.1 kristaps 276: assert(mdoc->last);
1.61 schwarze 277: mdoc->last->last = n;
1.1 kristaps 278: }
1.105 schwarze 279: mdoc_valid_post(mdoc);
1.1 kristaps 280: }
281:
1.22 schwarze 282: /*
1.122 schwarze 283: * Rewind up to a specific block, including all blocks that broke it.
284: */
285: static void
1.145 schwarze 286: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.122 schwarze 287: {
288:
1.139 schwarze 289: for (;;) {
290: rew_last(mdoc, n);
291:
1.150 schwarze 292: if (mdoc->last == n) {
293: switch (n->type) {
294: case ROFFT_HEAD:
295: roff_body_alloc(mdoc, n->line, n->pos,
296: n->tok);
297: return;
298: case ROFFT_BLOCK:
299: break;
300: default:
301: return;
302: }
303: if ( ! (n->flags & MDOC_BROKEN))
304: return;
305: } else
306: n = mdoc->last;
1.122 schwarze 307:
1.139 schwarze 308: for (;;) {
309: if ((n = n->parent) == NULL)
310: return;
311:
1.140 schwarze 312: if (n->type == ROFFT_BLOCK ||
313: n->type == ROFFT_HEAD) {
1.139 schwarze 314: if (n->flags & MDOC_ENDED)
315: break;
316: else
317: return;
318: }
319: }
1.122 schwarze 320: }
321: }
322:
323: /*
1.48 schwarze 324: * For a block closing macro, return the corresponding opening one.
325: * Otherwise, return the macro itself.
1.22 schwarze 326: */
1.141 schwarze 327: static int
328: rew_alt(int tok)
1.1 kristaps 329: {
330: switch (tok) {
1.88 schwarze 331: case MDOC_Ac:
1.1 kristaps 332: return(MDOC_Ao);
1.88 schwarze 333: case MDOC_Bc:
1.1 kristaps 334: return(MDOC_Bo);
1.88 schwarze 335: case MDOC_Brc:
1.1 kristaps 336: return(MDOC_Bro);
1.88 schwarze 337: case MDOC_Dc:
1.1 kristaps 338: return(MDOC_Do);
1.88 schwarze 339: case MDOC_Ec:
1.1 kristaps 340: return(MDOC_Eo);
1.88 schwarze 341: case MDOC_Ed:
1.1 kristaps 342: return(MDOC_Bd);
1.88 schwarze 343: case MDOC_Ef:
1.1 kristaps 344: return(MDOC_Bf);
1.88 schwarze 345: case MDOC_Ek:
1.1 kristaps 346: return(MDOC_Bk);
1.88 schwarze 347: case MDOC_El:
1.1 kristaps 348: return(MDOC_Bl);
1.88 schwarze 349: case MDOC_Fc:
1.1 kristaps 350: return(MDOC_Fo);
1.88 schwarze 351: case MDOC_Oc:
1.1 kristaps 352: return(MDOC_Oo);
1.88 schwarze 353: case MDOC_Pc:
1.1 kristaps 354: return(MDOC_Po);
1.88 schwarze 355: case MDOC_Qc:
1.1 kristaps 356: return(MDOC_Qo);
1.88 schwarze 357: case MDOC_Re:
1.1 kristaps 358: return(MDOC_Rs);
1.88 schwarze 359: case MDOC_Sc:
1.1 kristaps 360: return(MDOC_So);
1.88 schwarze 361: case MDOC_Xc:
1.1 kristaps 362: return(MDOC_Xo);
363: default:
1.48 schwarze 364: return(tok);
1.1 kristaps 365: }
366: /* NOTREACHED */
367: }
368:
1.105 schwarze 369: static void
1.145 schwarze 370: rew_elem(struct roff_man *mdoc, int tok)
1.1 kristaps 371: {
1.141 schwarze 372: struct roff_node *n;
1.1 kristaps 373:
374: n = mdoc->last;
1.140 schwarze 375: if (n->type != ROFFT_ELEM)
1.1 kristaps 376: n = n->parent;
1.140 schwarze 377: assert(n->type == ROFFT_ELEM);
1.1 kristaps 378: assert(tok == n->tok);
1.105 schwarze 379: rew_last(mdoc, n);
1.1 kristaps 380: }
381:
1.47 schwarze 382: /*
1.143 schwarze 383: * If there is an open sub-block of the target requiring
384: * explicit close-out, postpone closing out the target until
385: * the rew_pending() call closing out the sub-block.
386: */
387: static int
1.145 schwarze 388: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.143 schwarze 389: struct roff_node *target)
390: {
391: struct roff_node *n;
392: int irc;
393:
394: irc = 0;
395: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
396: if (n->flags & MDOC_ENDED) {
397: if ( ! (n->flags & MDOC_VALID))
398: n->flags |= MDOC_BROKEN;
399: continue;
400: }
401: if (n->type == ROFFT_BLOCK &&
402: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
403: irc = 1;
404: n->flags = MDOC_BROKEN;
405: if (target->type == ROFFT_HEAD)
406: target->flags = MDOC_ENDED;
407: else if ( ! (target->flags & MDOC_ENDED)) {
408: mandoc_vmsg(MANDOCERR_BLK_NEST,
409: mdoc->parse, line, ppos,
410: "%s breaks %s", mdoc_macronames[tok],
411: mdoc_macronames[n->tok]);
412: mdoc_endbody_alloc(mdoc, line, ppos,
413: tok, target, ENDBODY_NOSPACE);
414: }
415: }
416: }
417: return(irc);
418: }
419:
420: /*
1.66 schwarze 421: * Allocate a word and check whether it's punctuation or not.
422: * Punctuation consists of those tokens found in mdoc_isdelim().
423: */
1.106 schwarze 424: static void
1.145 schwarze 425: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.80 schwarze 426: enum mdelim d, int may_append)
1.66 schwarze 427: {
1.88 schwarze 428:
1.106 schwarze 429: if (d == DELIM_MAX)
1.66 schwarze 430: d = mdoc_isdelim(p);
431:
1.80 schwarze 432: if (may_append &&
1.106 schwarze 433: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.140 schwarze 434: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.106 schwarze 435: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.148 schwarze 436: roff_word_append(mdoc, p);
1.106 schwarze 437: return;
1.80 schwarze 438: }
439:
1.148 schwarze 440: roff_word_alloc(mdoc, line, col, p);
1.66 schwarze 441:
1.71 schwarze 442: /*
1.100 schwarze 443: * If the word consists of a bare delimiter,
444: * flag the new node accordingly,
445: * unless doing so was vetoed by the invoking macro.
446: * Always clear the veto, it is only valid for one word.
1.71 schwarze 447: */
448:
1.100 schwarze 449: if (d == DELIM_OPEN)
450: mdoc->last->flags |= MDOC_DELIMO;
451: else if (d == DELIM_CLOSE &&
452: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 453: mdoc->last->parent->tok != MDOC_Fd)
1.76 schwarze 454: mdoc->last->flags |= MDOC_DELIMC;
1.100 schwarze 455: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 456: }
1.1 kristaps 457:
1.106 schwarze 458: static void
1.145 schwarze 459: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1 kristaps 460: {
1.109 schwarze 461: char *p;
1.42 schwarze 462: int la;
1.1 kristaps 463:
1.106 schwarze 464: if (buf[*pos] == '\0')
465: return;
1.1 kristaps 466:
467: for (;;) {
1.42 schwarze 468: la = *pos;
1.147 schwarze 469: if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
470: ARGS_EOLN)
1.1 kristaps 471: break;
1.80 schwarze 472: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 473:
1.42 schwarze 474: /*
475: * If we encounter end-of-sentence symbols, then trigger
476: * the double-space.
477: *
1.68 schwarze 478: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 479: * the last symbol, such that `. )' will cause the
480: * correct double-spacing. However, (1) groff isn't
481: * smart enough to do this and (2) it would require
482: * knowing which symbols break this behaviour, for
1.68 schwarze 483: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 484: */
1.106 schwarze 485:
1.84 schwarze 486: if (mandoc_eos(p, strlen(p)))
1.76 schwarze 487: mdoc->last->flags |= MDOC_EOS;
1.1 kristaps 488: }
489: }
490:
491: /*
1.109 schwarze 492: * Parse one word.
493: * If it is a macro, call it and return 1.
494: * Otherwise, allocate it and return 0.
495: */
496: static int
497: macro_or_word(MACRO_PROT_ARGS, int parsed)
498: {
499: char *p;
1.141 schwarze 500: int ntok;
1.109 schwarze 501:
502: p = buf + ppos;
1.147 schwarze 503: ntok = TOKEN_NONE;
1.113 schwarze 504: if (*p == '"')
1.109 schwarze 505: p++;
1.113 schwarze 506: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 507: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 508:
1.147 schwarze 509: if (ntok == TOKEN_NONE) {
510: dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.109 schwarze 511: mdoc_macros[tok].flags & MDOC_JOIN);
512: return(0);
513: } else {
514: if (mdoc_macros[tok].fp == in_line_eoln)
515: rew_elem(mdoc, tok);
516: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.147 schwarze 517: if (tok == TOKEN_NONE)
1.109 schwarze 518: append_delims(mdoc, line, pos, buf);
519: return(1);
520: }
521: }
522:
523: /*
1.88 schwarze 524: * Close out block partial/full explicit.
1.1 kristaps 525: */
1.107 schwarze 526: static void
1.1 kristaps 527: blk_exp_close(MACRO_PROT_ARGS)
528: {
1.141 schwarze 529: struct roff_node *body; /* Our own body. */
530: struct roff_node *endbody; /* Our own end marker. */
531: struct roff_node *itblk; /* An It block starting later. */
532: struct roff_node *later; /* A sub-block starting later. */
533: struct roff_node *n; /* Search back to our block. */
1.144 schwarze 534: struct roff_node *target; /* For find_pending(). */
1.47 schwarze 535:
1.144 schwarze 536: int j, lastarg, maxargs, nl, pending;
1.36 schwarze 537: enum margserr ac;
1.141 schwarze 538: int atok, ntok;
1.1 kristaps 539: char *p;
540:
1.76 schwarze 541: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 542:
1.1 kristaps 543: switch (tok) {
1.88 schwarze 544: case MDOC_Ec:
1.1 kristaps 545: maxargs = 1;
546: break;
1.88 schwarze 547: case MDOC_Ek:
1.82 schwarze 548: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 549: /* FALLTHROUGH */
1.1 kristaps 550: default:
551: maxargs = 0;
552: break;
553: }
554:
1.47 schwarze 555: /*
556: * Search backwards for beginnings of blocks,
557: * both of our own and of pending sub-blocks.
558: */
1.107 schwarze 559:
1.47 schwarze 560: atok = rew_alt(tok);
1.127 schwarze 561: body = endbody = itblk = later = NULL;
1.76 schwarze 562: for (n = mdoc->last; n; n = n->parent) {
1.139 schwarze 563: if (n->flags & MDOC_ENDED) {
564: if ( ! (n->flags & MDOC_VALID))
565: n->flags |= MDOC_BROKEN;
1.47 schwarze 566: continue;
1.139 schwarze 567: }
1.47 schwarze 568:
569: /* Remember the start of our own body. */
1.107 schwarze 570:
1.140 schwarze 571: if (n->type == ROFFT_BODY && atok == n->tok) {
1.131 schwarze 572: if (n->end == ENDBODY_NOT)
1.47 schwarze 573: body = n;
574: continue;
575: }
576:
1.140 schwarze 577: if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.47 schwarze 578: continue;
1.116 schwarze 579:
580: if (n->tok == MDOC_It) {
1.127 schwarze 581: itblk = n;
1.116 schwarze 582: continue;
583: }
584:
1.47 schwarze 585: if (atok == n->tok) {
586: assert(body);
587:
588: /*
589: * Found the start of our own block.
590: * When there is no pending sub block,
591: * just proceed to closing out.
592: */
1.107 schwarze 593:
1.116 schwarze 594: if (later == NULL ||
1.127 schwarze 595: (tok == MDOC_El && itblk == NULL))
1.47 schwarze 596: break;
597:
1.88 schwarze 598: /*
1.123 schwarze 599: * When there is a pending sub block, postpone
600: * closing out the current block until the
601: * rew_pending() closing out the sub-block.
1.47 schwarze 602: * Mark the place where the formatting - but not
603: * the scope - of the current block ends.
604: */
1.107 schwarze 605:
1.139 schwarze 606: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
607: line, ppos, "%s breaks %s",
608: mdoc_macronames[atok],
609: mdoc_macronames[later->tok]);
610:
1.122 schwarze 611: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.106 schwarze 612: atok, body, ENDBODY_SPACE);
1.107 schwarze 613:
1.139 schwarze 614: if (tok == MDOC_El)
615: itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
616:
1.107 schwarze 617: /*
618: * If a block closing macro taking arguments
619: * breaks another block, put the arguments
1.122 schwarze 620: * into the end marker.
1.107 schwarze 621: */
622:
1.122 schwarze 623: if (maxargs)
1.145 schwarze 624: mdoc->next = ROFF_NEXT_CHILD;
1.47 schwarze 625: break;
1.138 schwarze 626: }
627:
628: /* Explicit blocks close out description lines. */
629:
630: if (n->tok == MDOC_Nd) {
631: rew_last(mdoc, n);
632: continue;
1.47 schwarze 633: }
634:
1.139 schwarze 635: /* Breaking an open sub block. */
1.107 schwarze 636:
1.139 schwarze 637: n->flags |= MDOC_BROKEN;
638: if (later == NULL)
1.47 schwarze 639: later = n;
640: }
1.122 schwarze 641:
642: if (body == NULL) {
643: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
644: line, ppos, mdoc_macronames[tok]);
1.152 ! schwarze 645: if (later != NULL)
! 646: later->flags &= ~MDOC_BROKEN;
1.122 schwarze 647: if (maxargs && endbody == NULL) {
648: /*
649: * Stray .Ec without previous .Eo:
650: * Break the output line, keep the arguments.
651: */
1.149 schwarze 652: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.122 schwarze 653: rew_elem(mdoc, MDOC_br);
654: }
655: } else if (endbody == NULL) {
656: rew_last(mdoc, body);
657: if (maxargs)
658: mdoc_tail_alloc(mdoc, line, ppos, atok);
659: }
1.47 schwarze 660:
1.106 schwarze 661: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
662: if (buf[*pos] != '\0')
1.93 schwarze 663: mandoc_vmsg(MANDOCERR_ARG_SKIP,
664: mdoc->parse, line, ppos,
665: "%s %s", mdoc_macronames[tok],
666: buf + *pos);
1.127 schwarze 667: if (endbody == NULL && n != NULL)
1.123 schwarze 668: rew_pending(mdoc, n);
1.107 schwarze 669: return;
1.1 kristaps 670: }
671:
1.122 schwarze 672: if (endbody != NULL)
673: n = endbody;
1.104 schwarze 674: for (j = 0; ; j++) {
1.1 kristaps 675: lastarg = *pos;
676:
1.142 schwarze 677: if (j == maxargs && n != NULL)
678: rew_last(mdoc, n);
1.1 kristaps 679:
1.76 schwarze 680: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 681: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 682: break;
683:
1.147 schwarze 684: ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.111 schwarze 685: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 686:
1.147 schwarze 687: if (ntok == TOKEN_NONE) {
1.106 schwarze 688: dword(mdoc, line, lastarg, p, DELIM_MAX,
689: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 690: continue;
691: }
1.1 kristaps 692:
1.142 schwarze 693: if (n != NULL)
694: rew_last(mdoc, n);
1.79 schwarze 695: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 696: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 697: break;
1.1 kristaps 698: }
699:
1.144 schwarze 700: if (n != NULL) {
701: if (n != mdoc->last && n->flags & MDOC_BROKEN) {
702: target = n;
703: do
704: target = target->parent;
705: while ( ! (target->flags & MDOC_ENDED));
706: pending = find_pending(mdoc, ntok, line, ppos,
707: target);
708: } else
709: pending = 0;
710: if ( ! pending)
711: rew_pending(mdoc, n);
712: }
1.106 schwarze 713: if (nl)
714: append_delims(mdoc, line, pos, buf);
1.1 kristaps 715: }
716:
1.107 schwarze 717: static void
1.1 kristaps 718: in_line(MACRO_PROT_ARGS)
719: {
1.100 schwarze 720: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.141 schwarze 721: int ntok;
1.36 schwarze 722: enum margserr ac;
1.40 schwarze 723: enum mdelim d;
1.36 schwarze 724: struct mdoc_arg *arg;
725: char *p;
1.1 kristaps 726:
1.76 schwarze 727: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 728:
1.1 kristaps 729: /*
730: * Whether we allow ignored elements (those without content,
731: * usually because of reserved words) to squeak by.
732: */
1.32 schwarze 733:
1.1 kristaps 734: switch (tok) {
1.88 schwarze 735: case MDOC_An:
1.19 schwarze 736: /* FALLTHROUGH */
1.88 schwarze 737: case MDOC_Ar:
1.1 kristaps 738: /* FALLTHROUGH */
1.88 schwarze 739: case MDOC_Fl:
1.1 kristaps 740: /* FALLTHROUGH */
1.88 schwarze 741: case MDOC_Mt:
1.18 schwarze 742: /* FALLTHROUGH */
1.88 schwarze 743: case MDOC_Nm:
1.19 schwarze 744: /* FALLTHROUGH */
1.88 schwarze 745: case MDOC_Pa:
1.1 kristaps 746: nc = 1;
747: break;
748: default:
749: nc = 0;
750: break;
751: }
752:
1.108 schwarze 753: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 754:
1.100 schwarze 755: d = DELIM_NONE;
756: firstarg = 1;
1.98 schwarze 757: mayopen = 1;
1.45 schwarze 758: for (cnt = scope = 0;; ) {
1.1 kristaps 759: la = *pos;
1.76 schwarze 760: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 761:
1.100 schwarze 762: /*
763: * At the end of a macro line,
764: * opening delimiters do not suppress spacing.
765: */
766:
767: if (ac == ARGS_EOLN) {
768: if (d == DELIM_OPEN)
769: mdoc->last->flags &= ~MDOC_DELIMO;
1.1 kristaps 770: break;
1.100 schwarze 771: }
772:
773: /*
774: * The rest of the macro line is only punctuation,
775: * to be handled by append_delims().
776: * If there were no other arguments,
777: * do not allow the first one to suppress spacing,
778: * even if it turns out to be a closing one.
779: */
780:
781: if (ac == ARGS_PUNCT) {
1.132 schwarze 782: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.100 schwarze 783: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 784: break;
1.100 schwarze 785: }
1.1 kristaps 786:
1.101 schwarze 787: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.147 schwarze 788: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1 kristaps 789:
1.88 schwarze 790: /*
1.1 kristaps 791: * In this case, we've located a submacro and must
792: * execute it. Close out scope, if open. If no
793: * elements have been generated, either create one (nc)
794: * or raise a warning.
795: */
796:
1.147 schwarze 797: if (ntok != TOKEN_NONE) {
1.105 schwarze 798: if (scope)
799: rew_elem(mdoc, tok);
1.106 schwarze 800: if (nc && ! cnt) {
801: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 802: rew_last(mdoc, mdoc->last);
1.106 schwarze 803: } else if ( ! nc && ! cnt) {
1.1 kristaps 804: mdoc_argv_free(arg);
1.92 schwarze 805: mandoc_msg(MANDOCERR_MACRO_EMPTY,
806: mdoc->parse, line, ppos,
807: mdoc_macronames[tok]);
1.1 kristaps 808: }
1.107 schwarze 809: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 810: if (nl)
811: append_delims(mdoc, line, pos, buf);
1.107 schwarze 812: return;
1.88 schwarze 813: }
1.1 kristaps 814:
1.88 schwarze 815: /*
1.1 kristaps 816: * Non-quote-enclosed punctuation. Set up our scope, if
817: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 818: * the word.
1.1 kristaps 819: */
820:
1.106 schwarze 821: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 822:
1.45 schwarze 823: if (DELIM_NONE != d) {
824: /*
825: * If we encounter closing punctuation, no word
1.100 schwarze 826: * has been emitted, no scope is open, and we're
1.45 schwarze 827: * allowed to have an empty element, then start
1.98 schwarze 828: * a new scope.
1.45 schwarze 829: */
1.98 schwarze 830: if ((d == DELIM_CLOSE ||
831: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 832: !cnt && !scope && nc && mayopen) {
1.106 schwarze 833: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 834: scope = 1;
1.98 schwarze 835: cnt++;
1.106 schwarze 836: if (tok == MDOC_Nm)
1.98 schwarze 837: mayopen = 0;
1.45 schwarze 838: }
839: /*
840: * Close out our scope, if one is open, before
841: * any punctuation.
842: */
1.105 schwarze 843: if (scope)
844: rew_elem(mdoc, tok);
1.45 schwarze 845: scope = 0;
1.101 schwarze 846: if (tok == MDOC_Fn)
847: mayopen = 0;
1.98 schwarze 848: } else if (mayopen && !scope) {
1.106 schwarze 849: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 850: scope = 1;
1.98 schwarze 851: cnt++;
1.1 kristaps 852: }
1.66 schwarze 853:
1.106 schwarze 854: dword(mdoc, line, la, p, d,
855: MDOC_JOIN & mdoc_macros[tok].flags);
1.27 schwarze 856:
857: /*
1.100 schwarze 858: * If the first argument is a closing delimiter,
859: * do not suppress spacing before it.
860: */
861:
862: if (firstarg && d == DELIM_CLOSE && !nc)
863: mdoc->last->flags &= ~MDOC_DELIMC;
864: firstarg = 0;
865:
866: /*
1.27 schwarze 867: * `Fl' macros have their scope re-opened with each new
868: * word so that the `-' can be added to each one without
869: * having to parse out spaces.
870: */
1.106 schwarze 871: if (scope && tok == MDOC_Fl) {
1.105 schwarze 872: rew_elem(mdoc, tok);
1.45 schwarze 873: scope = 0;
1.27 schwarze 874: }
1.1 kristaps 875: }
876:
1.105 schwarze 877: if (scope)
878: rew_elem(mdoc, tok);
1.1 kristaps 879:
880: /*
881: * If no elements have been collected and we're allowed to have
882: * empties (nc), open a scope and close it out. Otherwise,
883: * raise a warning.
884: */
1.32 schwarze 885:
1.106 schwarze 886: if ( ! cnt) {
887: if (nc) {
888: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
889: rew_last(mdoc, mdoc->last);
890: } else {
891: mdoc_argv_free(arg);
892: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
893: line, ppos, mdoc_macronames[tok]);
894: }
1.1 kristaps 895: }
1.106 schwarze 896: if (nl)
897: append_delims(mdoc, line, pos, buf);
1.1 kristaps 898: }
899:
1.107 schwarze 900: static void
1.1 kristaps 901: blk_full(MACRO_PROT_ARGS)
902: {
1.109 schwarze 903: int la, nl, parsed;
1.1 kristaps 904: struct mdoc_arg *arg;
1.141 schwarze 905: struct roff_node *blk; /* Our own or a broken block. */
906: struct roff_node *head; /* Our own head. */
907: struct roff_node *body; /* Our own body. */
908: struct roff_node *n;
1.37 schwarze 909: enum margserr ac, lac;
1.1 kristaps 910: char *p;
911:
1.76 schwarze 912: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 913:
1.133 schwarze 914: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
915: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
916: line, ppos, mdoc_macronames[tok]);
917: return;
918: }
919:
1.127 schwarze 920: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
921:
922: /* Here, tok is one of Sh Ss Nm Nd It. */
923:
924: blk = NULL;
925: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 926: if (n->flags & MDOC_ENDED) {
927: if ( ! (n->flags & MDOC_VALID))
928: n->flags |= MDOC_BROKEN;
929: continue;
930: }
1.140 schwarze 931: if (n->type != ROFFT_BLOCK)
1.127 schwarze 932: continue;
1.139 schwarze 933:
1.127 schwarze 934: if (tok == MDOC_It && n->tok == MDOC_Bl) {
935: if (blk != NULL) {
936: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
937: mdoc->parse, line, ppos,
938: "It breaks %s",
939: mdoc_macronames[blk->tok]);
940: rew_pending(mdoc, blk);
941: }
942: break;
943: }
944:
945: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
946: switch (tok) {
947: case MDOC_Sh:
948: /* FALLTHROUGH */
949: case MDOC_Ss:
950: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
951: mdoc->parse, line, ppos,
952: "%s breaks %s",
953: mdoc_macronames[tok],
954: mdoc_macronames[n->tok]);
955: rew_pending(mdoc, n);
1.136 schwarze 956: n = mdoc->last;
1.127 schwarze 957: continue;
958: case MDOC_It:
959: /* Delay in case it's astray. */
960: blk = n;
961: continue;
962: default:
963: break;
964: }
965: break;
966: }
967:
968: /* Here, n is one of Sh Ss Nm Nd It. */
1.95 schwarze 969:
1.127 schwarze 970: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
971: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
972: (tok != MDOC_It && n->tok == MDOC_It)))))
1.95 schwarze 973: break;
1.127 schwarze 974:
975: /* Item breaking an explicit block. */
976:
977: if (blk != NULL) {
978: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
979: mdoc->parse, line, ppos,
980: "It breaks %s",
981: mdoc_macronames[blk->tok]);
982: rew_pending(mdoc, blk);
1.128 schwarze 983: blk = NULL;
1.127 schwarze 984: }
985:
986: /* Close out prior implicit scopes. */
987:
988: rew_last(mdoc, n);
989: }
990:
991: /* Skip items outside lists. */
992:
993: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.95 schwarze 994: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
995: line, ppos, "It %s", buf + *pos);
1.149 schwarze 996: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.105 schwarze 997: rew_elem(mdoc, MDOC_br);
1.107 schwarze 998: return;
1.95 schwarze 999: }
1.1 kristaps 1000: }
1001:
1.32 schwarze 1002: /*
1.68 schwarze 1003: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 1004: * macro openings. Implicit ones first close out prior scope
1005: * (seen above). Delay opening the head until necessary to
1006: * allow leading punctuation to print. Special consideration
1007: * for `It -column', which has phrase-part syntax instead of
1008: * regular child nodes.
1009: */
1010:
1.108 schwarze 1011: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.121 schwarze 1012: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1013: head = body = NULL;
1.1 kristaps 1014:
1.32 schwarze 1015: /*
1.73 schwarze 1016: * Exception: Heads of `It' macros in `-diag' lists are not
1017: * parsed, even though `It' macros in general are parsed.
1018: */
1.107 schwarze 1019:
1.109 schwarze 1020: parsed = tok != MDOC_It ||
1021: mdoc->last->parent->tok != MDOC_Bl ||
1022: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1023:
1024: /*
1.32 schwarze 1025: * The `Nd' macro has all arguments in its body: it's a hybrid
1026: * of block partial-explicit and full-implicit. Stupid.
1027: */
1.12 schwarze 1028:
1.106 schwarze 1029: if (tok == MDOC_Nd) {
1.146 schwarze 1030: head = roff_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 1031: rew_last(mdoc, head);
1.146 schwarze 1032: body = roff_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1033: }
1034:
1.106 schwarze 1035: if (tok == MDOC_Bk)
1.80 schwarze 1036: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1037:
1.106 schwarze 1038: ac = ARGS_PEND;
1039: for (;;) {
1.32 schwarze 1040: la = *pos;
1.106 schwarze 1041: lac = ac;
1.76 schwarze 1042: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1043: if (ac == ARGS_EOLN) {
1044: if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.46 schwarze 1045: break;
1046: /*
1047: * This is necessary: if the last token on a
1048: * line is a `Ta' or tab, then we'll get
1049: * ARGS_EOLN, so we must be smart enough to
1050: * reopen our scope if the last parse was a
1051: * phrase or partial phrase.
1052: */
1.123 schwarze 1053: if (body != NULL)
1054: rew_last(mdoc, body);
1.146 schwarze 1055: body = roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1056: break;
1.41 schwarze 1057: }
1.130 schwarze 1058: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1059: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1060: mdoc->parse, line, la, "%s ... %s",
1061: mdoc_macronames[tok], buf + la);
1062: break;
1063: }
1.129 schwarze 1064: if (tok == MDOC_Rs) {
1065: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1066: line, la, "Rs %s", buf + la);
1067: break;
1068: }
1069: if (ac == ARGS_PUNCT)
1070: break;
1.41 schwarze 1071:
1.88 schwarze 1072: /*
1.46 schwarze 1073: * Emit leading punctuation (i.e., punctuation before
1.140 schwarze 1074: * the ROFFT_HEAD) for non-phrase types.
1.46 schwarze 1075: */
1.32 schwarze 1076:
1.106 schwarze 1077: if (head == NULL &&
1078: ac != ARGS_PEND &&
1079: ac != ARGS_PHRASE &&
1080: ac != ARGS_PPHRASE &&
1081: ac != ARGS_QWORD &&
1082: mdoc_isdelim(p) == DELIM_OPEN) {
1083: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1084: continue;
1085: }
1086:
1.46 schwarze 1087: /* Open a head if one hasn't been opened. */
1.32 schwarze 1088:
1.106 schwarze 1089: if (head == NULL)
1.146 schwarze 1090: head = roff_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1091:
1.106 schwarze 1092: if (ac == ARGS_PHRASE ||
1093: ac == ARGS_PEND ||
1094: ac == ARGS_PPHRASE) {
1.107 schwarze 1095:
1.46 schwarze 1096: /*
1097: * If we haven't opened a body yet, rewind the
1098: * head; if we have, rewind that instead.
1099: */
1100:
1.123 schwarze 1101: rew_last(mdoc, body == NULL ? head : body);
1.146 schwarze 1102: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1103:
1104: /*
1105: * Process phrases: set whether we're in a
1106: * partial-phrase (this effects line handling)
1107: * then call down into the phrase parser.
1108: */
1109:
1.106 schwarze 1110: if (ac == ARGS_PPHRASE)
1.76 schwarze 1111: mdoc->flags |= MDOC_PPHRASE;
1.106 schwarze 1112: if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.76 schwarze 1113: mdoc->flags |= MDOC_PPHRASE;
1.147 schwarze 1114: parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.76 schwarze 1115: mdoc->flags &= ~MDOC_PPHRASE;
1.1 kristaps 1116: continue;
1117: }
1118:
1.109 schwarze 1119: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1120: break;
1.32 schwarze 1121: }
1.1 kristaps 1122:
1.121 schwarze 1123: if (blk->flags & MDOC_VALID)
1124: return;
1.106 schwarze 1125: if (head == NULL)
1.146 schwarze 1126: head = roff_head_alloc(mdoc, line, ppos, tok);
1.130 schwarze 1127: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.106 schwarze 1128: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1129: if (body != NULL)
1.46 schwarze 1130: goto out;
1.143 schwarze 1131: if (find_pending(mdoc, tok, line, ppos, head))
1.139 schwarze 1132: return;
1.54 schwarze 1133:
1.32 schwarze 1134: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1135:
1.123 schwarze 1136: rew_last(mdoc, head);
1.146 schwarze 1137: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1138: out:
1.106 schwarze 1139: if (mdoc->flags & MDOC_FREECOL) {
1.123 schwarze 1140: rew_last(mdoc, body);
1141: rew_last(mdoc, blk);
1.106 schwarze 1142: mdoc->flags &= ~MDOC_FREECOL;
1143: }
1.1 kristaps 1144: }
1145:
1.107 schwarze 1146: static void
1.1 kristaps 1147: blk_part_imp(MACRO_PROT_ARGS)
1148: {
1.43 schwarze 1149: int la, nl;
1.36 schwarze 1150: enum margserr ac;
1.1 kristaps 1151: char *p;
1.141 schwarze 1152: struct roff_node *blk; /* saved block context */
1153: struct roff_node *body; /* saved body context */
1154: struct roff_node *n;
1.1 kristaps 1155:
1.76 schwarze 1156: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1157:
1.32 schwarze 1158: /*
1159: * A macro that spans to the end of the line. This is generally
1160: * (but not necessarily) called as the first macro. The block
1161: * has a head as the immediate child, which is always empty,
1162: * followed by zero or more opening punctuation nodes, then the
1163: * body (which may be empty, depending on the macro), then zero
1164: * or more closing punctuation nodes.
1165: */
1.22 schwarze 1166:
1.106 schwarze 1167: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.146 schwarze 1168: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1169:
1.32 schwarze 1170: /*
1171: * Open the body scope "on-demand", that is, after we've
1172: * processed all our the leading delimiters (open parenthesis,
1173: * etc.).
1174: */
1.1 kristaps 1175:
1.32 schwarze 1176: for (body = NULL; ; ) {
1.22 schwarze 1177: la = *pos;
1.76 schwarze 1178: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1179: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1180: break;
1181:
1.106 schwarze 1182: if (body == NULL && ac != ARGS_QWORD &&
1183: mdoc_isdelim(p) == DELIM_OPEN) {
1184: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1185: continue;
1.80 schwarze 1186: }
1.1 kristaps 1187:
1.106 schwarze 1188: if (body == NULL)
1.146 schwarze 1189: body = roff_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1190:
1.109 schwarze 1191: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1192: break;
1.32 schwarze 1193: }
1.106 schwarze 1194: if (body == NULL)
1.146 schwarze 1195: body = roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1196:
1.143 schwarze 1197: if (find_pending(mdoc, tok, line, ppos, body))
1.139 schwarze 1198: return;
1199:
1.120 schwarze 1200: rew_last(mdoc, body);
1.106 schwarze 1201: if (nl)
1202: append_delims(mdoc, line, pos, buf);
1.122 schwarze 1203: rew_pending(mdoc, blk);
1.74 schwarze 1204:
1205: /* Move trailing .Ns out of scope. */
1206:
1207: for (n = body->child; n && n->next; n = n->next)
1208: /* Do nothing. */ ;
1.106 schwarze 1209: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1210: mdoc_node_relink(mdoc, n);
1.1 kristaps 1211: }
1212:
1.107 schwarze 1213: static void
1.1 kristaps 1214: blk_part_exp(MACRO_PROT_ARGS)
1215: {
1.37 schwarze 1216: int la, nl;
1.36 schwarze 1217: enum margserr ac;
1.141 schwarze 1218: struct roff_node *head; /* keep track of head */
1.1 kristaps 1219: char *p;
1220:
1.76 schwarze 1221: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1222:
1.32 schwarze 1223: /*
1224: * The opening of an explicit macro having zero or more leading
1225: * punctuation nodes; a head with optional single element (the
1226: * case of `Eo'); and a body that may be empty.
1227: */
1.22 schwarze 1228:
1.149 schwarze 1229: roff_block_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1230: head = NULL;
1231: for (;;) {
1.22 schwarze 1232: la = *pos;
1.76 schwarze 1233: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1234: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1235: break;
1236:
1.32 schwarze 1237: /* Flush out leading punctuation. */
1238:
1.106 schwarze 1239: if (head == NULL && ac != ARGS_QWORD &&
1240: mdoc_isdelim(p) == DELIM_OPEN) {
1241: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1242: continue;
1.80 schwarze 1243: }
1.32 schwarze 1244:
1.106 schwarze 1245: if (head == NULL) {
1.146 schwarze 1246: head = roff_head_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1247: if (tok == MDOC_Eo) /* Not parsed. */
1.106 schwarze 1248: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.119 schwarze 1249: rew_last(mdoc, head);
1.146 schwarze 1250: roff_body_alloc(mdoc, line, ppos, tok);
1.106 schwarze 1251: if (tok == MDOC_Eo)
1.32 schwarze 1252: continue;
1253: }
1254:
1.109 schwarze 1255: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1256: break;
1.1 kristaps 1257: }
1258:
1.32 schwarze 1259: /* Clean-up to leave in a consistent state. */
1260:
1.119 schwarze 1261: if (head == NULL) {
1.146 schwarze 1262: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1263: roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1264: }
1.106 schwarze 1265: if (nl)
1266: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1267: }
1268:
1.107 schwarze 1269: static void
1.1 kristaps 1270: in_line_argn(MACRO_PROT_ARGS)
1271: {
1.36 schwarze 1272: struct mdoc_arg *arg;
1273: char *p;
1.137 schwarze 1274: enum margserr ac;
1.141 schwarze 1275: int ntok;
1.137 schwarze 1276: int state; /* arg#; -1: not yet open; -2: closed */
1277: int la, maxargs, nl;
1.1 kristaps 1278:
1.112 schwarze 1279: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1280:
1.32 schwarze 1281: /*
1282: * A line macro that has a fixed number of arguments (maxargs).
1283: * Only open the scope once the first non-leading-punctuation is
1284: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1285: * keep it open until the maximum number of arguments are
1286: * exhausted.
1287: */
1.1 kristaps 1288:
1289: switch (tok) {
1.88 schwarze 1290: case MDOC_Ap:
1.1 kristaps 1291: /* FALLTHROUGH */
1.88 schwarze 1292: case MDOC_Ns:
1.1 kristaps 1293: /* FALLTHROUGH */
1.88 schwarze 1294: case MDOC_Ux:
1.1 kristaps 1295: maxargs = 0;
1296: break;
1.88 schwarze 1297: case MDOC_Bx:
1.64 schwarze 1298: /* FALLTHROUGH */
1.89 schwarze 1299: case MDOC_Es:
1300: /* FALLTHROUGH */
1.88 schwarze 1301: case MDOC_Xr:
1.28 schwarze 1302: maxargs = 2;
1303: break;
1.1 kristaps 1304: default:
1305: maxargs = 1;
1306: break;
1307: }
1308:
1.108 schwarze 1309: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1310:
1.137 schwarze 1311: state = -1;
1.112 schwarze 1312: p = NULL;
1313: for (;;) {
1.22 schwarze 1314: la = *pos;
1.76 schwarze 1315: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.137 schwarze 1316:
1317: if (ac == ARGS_WORD && state == -1 &&
1318: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1319: mdoc_isdelim(p) == DELIM_OPEN) {
1320: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1321: continue;
1322: }
1323:
1324: if (state == -1 && tok != MDOC_In &&
1325: tok != MDOC_St && tok != MDOC_Xr) {
1326: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1327: state = 0;
1328: }
1329:
1.112 schwarze 1330: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.137 schwarze 1331: if (abs(state) < 2 && tok == MDOC_Pf)
1.112 schwarze 1332: mandoc_vmsg(MANDOCERR_PF_SKIP,
1333: mdoc->parse, line, ppos, "Pf %s",
1334: p == NULL ? "at eol" : p);
1.1 kristaps 1335: break;
1.112 schwarze 1336: }
1.1 kristaps 1337:
1.137 schwarze 1338: if (state == maxargs) {
1.105 schwarze 1339: rew_elem(mdoc, tok);
1.137 schwarze 1340: state = -2;
1.32 schwarze 1341: }
1342:
1.137 schwarze 1343: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.147 schwarze 1344: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1345:
1.147 schwarze 1346: if (ntok != TOKEN_NONE) {
1.137 schwarze 1347: if (state >= 0) {
1.105 schwarze 1348: rew_elem(mdoc, tok);
1.137 schwarze 1349: state = -2;
1350: }
1.107 schwarze 1351: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1352: break;
1353: }
1354:
1.137 schwarze 1355: if (ac == ARGS_QWORD ||
1356: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1357: mdoc_isdelim(p) == DELIM_NONE) {
1358: if (state == -1) {
1359: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1360: state = 1;
1361: } else if (state >= 0)
1362: state++;
1363: } else if (state >= 0) {
1.105 schwarze 1364: rew_elem(mdoc, tok);
1.137 schwarze 1365: state = -2;
1.28 schwarze 1366: }
1367:
1.106 schwarze 1368: dword(mdoc, line, la, p, DELIM_MAX,
1369: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1370: }
1371:
1.137 schwarze 1372: if (state == -1) {
1373: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1374: line, ppos, mdoc_macronames[tok]);
1375: return;
1.112 schwarze 1376: }
1.137 schwarze 1377:
1378: if (state == 0 && tok == MDOC_Pf)
1379: append_delims(mdoc, line, pos, buf);
1380: if (state >= 0)
1.105 schwarze 1381: rew_elem(mdoc, tok);
1.106 schwarze 1382: if (nl)
1383: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1384: }
1385:
1.107 schwarze 1386: static void
1.1 kristaps 1387: in_line_eoln(MACRO_PROT_ARGS)
1388: {
1.141 schwarze 1389: struct roff_node *n;
1.126 schwarze 1390: struct mdoc_arg *arg;
1.1 kristaps 1391:
1.126 schwarze 1392: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1393: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1394: n = mdoc->last;
1.145 schwarze 1395: if (mdoc->next == ROFF_NEXT_SIBLING)
1.126 schwarze 1396: n = n->parent;
1397: if (n->tok == MDOC_Nm)
1398: rew_last(mdoc, mdoc->last->parent);
1.134 schwarze 1399: }
1400:
1.135 schwarze 1401: if (buf[*pos] == '\0' &&
1402: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.134 schwarze 1403: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.135 schwarze 1404: line, ppos, mdoc_macronames[tok]);
1.134 schwarze 1405: return;
1.126 schwarze 1406: }
1.53 schwarze 1407:
1.108 schwarze 1408: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1409: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1410: if (parse_rest(mdoc, tok, line, pos, buf))
1411: return;
1412: rew_elem(mdoc, tok);
1413: }
1414:
1415: /*
1416: * The simplest argument parser available: Parse the remaining
1417: * words until the end of the phrase or line and return 0
1418: * or until the next macro, call that macro, and return 1.
1419: */
1420: static int
1.145 schwarze 1421: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.110 schwarze 1422: {
1423: int la;
1.1 kristaps 1424:
1425: for (;;) {
1426: la = *pos;
1.109 schwarze 1427: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.110 schwarze 1428: return(0);
1.109 schwarze 1429: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.110 schwarze 1430: return(1);
1.1 kristaps 1431: }
1.28 schwarze 1432: }
1433:
1.107 schwarze 1434: static void
1.28 schwarze 1435: ctx_synopsis(MACRO_PROT_ARGS)
1436: {
1.37 schwarze 1437:
1.107 schwarze 1438: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1439: in_line(mdoc, tok, line, ppos, pos, buf);
1440: else if (tok == MDOC_Nm)
1441: blk_full(mdoc, tok, line, ppos, pos, buf);
1442: else {
1443: assert(tok == MDOC_Vt);
1444: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1445: }
1.1 kristaps 1446: }
1447:
1.17 schwarze 1448: /*
1449: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1450: * They're unusual because they're basically free-form text until a
1451: * macro is encountered.
1452: */
1.107 schwarze 1453: static void
1.46 schwarze 1454: phrase_ta(MACRO_PROT_ARGS)
1455: {
1.141 schwarze 1456: struct roff_node *body, *n;
1.46 schwarze 1457:
1.78 schwarze 1458: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1459:
1.123 schwarze 1460: body = NULL;
1461: for (n = mdoc->last; n != NULL; n = n->parent) {
1.139 schwarze 1462: if (n->flags & MDOC_ENDED)
1.123 schwarze 1463: continue;
1.140 schwarze 1464: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.123 schwarze 1465: body = n;
1466: if (n->tok == MDOC_Bl)
1467: break;
1468: }
1469:
1.107 schwarze 1470: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1471: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1472: line, ppos, "Ta");
1.107 schwarze 1473: return;
1.78 schwarze 1474: }
1.46 schwarze 1475:
1.78 schwarze 1476: /* Advance to the next column. */
1.106 schwarze 1477:
1.123 schwarze 1478: rew_last(mdoc, body);
1.146 schwarze 1479: roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.147 schwarze 1480: parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.46 schwarze 1481: }
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