Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.177
1.177 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.176 2017/04/24 23:06:09 schwarze Exp $ */
1.1 kristaps 2: /*
1.74 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.173 schwarze 4: * Copyright (c) 2010, 2012-2017 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);
1.176 schwarze 47: static int find_pending(struct roff_man *, enum roff_tok,
48: int, int, 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);
1.170 schwarze 51: static void break_intermediate(struct roff_node *,
1.176 schwarze 52: struct roff_node *);
53: static int parse_rest(struct roff_man *, enum roff_tok,
54: int, int *, char *);
55: static enum roff_tok rew_alt(enum roff_tok);
56: static void rew_elem(struct roff_man *, enum roff_tok);
1.145 schwarze 57: static void rew_last(struct roff_man *, const struct roff_node *);
58: static void rew_pending(struct roff_man *,
59: const struct roff_node *);
1.1 kristaps 60:
1.176 schwarze 61: const struct mdoc_macro __mdoc_macros[MDOC_MAX - MDOC_Dd] = {
1.1 kristaps 62: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
63: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
64: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.80 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 */
1.80 schwarze 71: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1 kristaps 72: { blk_full, MDOC_EXPLICIT }, /* Bl */
1.80 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 */
1.176 schwarze 77: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 78: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.86 schwarze 79: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.80 schwarze 81: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
83: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 84: { in_line_eoln, 0 }, /* Ex */
1.80 schwarze 85: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
86: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.80 schwarze 88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
89: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.85 schwarze 90: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.11 schwarze 91: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.80 schwarze 92: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
93: { blk_full, MDOC_JOIN }, /* Nd */
94: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 95: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.89 schwarze 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 97: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
98: { in_line_eoln, 0 }, /* Rv */
1.80 schwarze 99: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 100: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.80 schwarze 101: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.28 schwarze 102: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.80 schwarze 103: { in_line_eoln, MDOC_JOIN }, /* %A */
104: { in_line_eoln, MDOC_JOIN }, /* %B */
105: { in_line_eoln, MDOC_JOIN }, /* %D */
106: { in_line_eoln, MDOC_JOIN }, /* %I */
107: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 108: { in_line_eoln, 0 }, /* %N */
1.80 schwarze 109: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 110: { in_line_eoln, 0 }, /* %P */
1.80 schwarze 111: { in_line_eoln, MDOC_JOIN }, /* %R */
112: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 113: { in_line_eoln, 0 }, /* %V */
1.80 schwarze 114: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
115: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
116: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
117: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
118: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 119: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.80 schwarze 120: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
121: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
122: { blk_full, MDOC_EXPLICIT }, /* Bf */
123: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
124: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
125: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 126: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
127: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
128: { in_line_eoln, 0 }, /* Db */
1.80 schwarze 129: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
130: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
131: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
132: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
133: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
134: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
135: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
136: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 137: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
138: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 139: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.100 schwarze 140: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.80 schwarze 141: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
142: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
144: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.80 schwarze 145: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
146: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.35 schwarze 147: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.80 schwarze 148: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
149: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
150: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
151: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
152: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
153: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
154: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
155: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
156: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
157: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 158: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.80 schwarze 159: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
160: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
161: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
162: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
163: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.103 schwarze 164: { in_line_argn, 0 }, /* Sm */
1.80 schwarze 165: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
166: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 167: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.80 schwarze 168: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 169: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
170: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.80 schwarze 171: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
172: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
173: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
174: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
175: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
176: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
177: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 178: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.80 schwarze 179: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 180: { in_line_eoln, 0 }, /* Bt */
181: { in_line_eoln, 0 }, /* Hf */
1.89 schwarze 182: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 183: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 184: { in_line, 0 }, /* Lb */
1.80 schwarze 185: { in_line_eoln, 0 }, /* Lp */
186: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
187: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
188: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
189: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
190: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
191: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
192: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
193: { in_line_eoln, MDOC_JOIN }, /* %C */
1.89 schwarze 194: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
195: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 196: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.80 schwarze 197: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.13 schwarze 198: { in_line_eoln, 0 }, /* br */
199: { in_line_eoln, 0 }, /* sp */
1.25 schwarze 200: { in_line_eoln, 0 }, /* %U */
1.80 schwarze 201: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.99 schwarze 202: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 203: };
1.176 schwarze 204: const struct mdoc_macro *const mdoc_macros = __mdoc_macros - MDOC_Dd;
1.1 kristaps 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: */
1.107 schwarze 212: void
1.151 schwarze 213: mdoc_endparse(struct roff_man *mdoc)
1.1 kristaps 214: {
1.141 schwarze 215: struct roff_node *n;
1.1 kristaps 216:
217: /* Scan for open explicit scopes. */
218:
1.166 schwarze 219: n = mdoc->last->flags & NODE_VALID ?
1.88 schwarze 220: mdoc->last->parent : mdoc->last;
1.1 kristaps 221:
1.56 schwarze 222: for ( ; n; n = n->parent)
1.140 schwarze 223: if (n->type == ROFFT_BLOCK &&
1.107 schwarze 224: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.94 schwarze 225: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
1.176 schwarze 226: n->line, n->pos, roff_name[n->tok]);
1.1 kristaps 227:
1.22 schwarze 228: /* Rewind to the first. */
229:
1.105 schwarze 230: rew_last(mdoc, mdoc->first);
1.162 schwarze 231: mdoc_state_reset(mdoc);
1.1 kristaps 232: }
233:
1.22 schwarze 234: /*
1.109 schwarze 235: * Look up the macro at *p called by "from",
1.147 schwarze 236: * or as a line macro if from == TOKEN_NONE.
1.22 schwarze 237: */
1.141 schwarze 238: static int
1.145 schwarze 239: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.21 schwarze 240: {
1.176 schwarze 241: enum roff_tok res;
1.1 kristaps 242:
1.161 schwarze 243: if (mdoc->flags & MDOC_PHRASEQF) {
244: mdoc->flags &= ~MDOC_PHRASEQF;
245: return TOKEN_NONE;
246: }
1.147 schwarze 247: if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
1.177 ! schwarze 248: res = roffhash_find(mdoc->mdocmac, p, 0);
1.147 schwarze 249: if (res != TOKEN_NONE) {
1.111 schwarze 250: if (mdoc_macros[res].flags & MDOC_CALLABLE)
1.158 schwarze 251: return res;
1.111 schwarze 252: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
253: mandoc_msg(MANDOCERR_MACRO_CALL,
254: mdoc->parse, line, ppos, p);
255: }
1.109 schwarze 256: }
1.158 schwarze 257: return TOKEN_NONE;
1.1 kristaps 258: }
259:
1.122 schwarze 260: /*
261: * Rewind up to and including a specific node.
262: */
1.105 schwarze 263: static void
1.145 schwarze 264: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1 kristaps 265: {
266:
1.166 schwarze 267: if (to->flags & NODE_VALID)
1.142 schwarze 268: return;
269:
1.1 kristaps 270: while (mdoc->last != to) {
1.162 schwarze 271: mdoc_state(mdoc, mdoc->last);
1.166 schwarze 272: mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.162 schwarze 273: mdoc->last = mdoc->last->parent;
1.1 kristaps 274: }
1.162 schwarze 275: mdoc_state(mdoc, mdoc->last);
1.166 schwarze 276: mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.156 schwarze 277: mdoc->next = ROFF_NEXT_SIBLING;
1.1 kristaps 278: }
279:
1.22 schwarze 280: /*
1.122 schwarze 281: * Rewind up to a specific block, including all blocks that broke it.
282: */
283: static void
1.145 schwarze 284: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.122 schwarze 285: {
286:
1.139 schwarze 287: for (;;) {
288: rew_last(mdoc, n);
289:
1.150 schwarze 290: if (mdoc->last == n) {
291: switch (n->type) {
292: case ROFFT_HEAD:
293: roff_body_alloc(mdoc, n->line, n->pos,
294: n->tok);
1.163 schwarze 295: break;
1.150 schwarze 296: case ROFFT_BLOCK:
297: break;
298: default:
299: return;
300: }
1.166 schwarze 301: if ( ! (n->flags & NODE_BROKEN))
1.150 schwarze 302: return;
303: } else
304: n = mdoc->last;
1.122 schwarze 305:
1.139 schwarze 306: for (;;) {
307: if ((n = n->parent) == NULL)
308: return;
309:
1.140 schwarze 310: if (n->type == ROFFT_BLOCK ||
311: n->type == ROFFT_HEAD) {
1.166 schwarze 312: if (n->flags & NODE_ENDED)
1.139 schwarze 313: break;
314: else
315: return;
316: }
317: }
1.122 schwarze 318: }
319: }
320:
321: /*
1.48 schwarze 322: * For a block closing macro, return the corresponding opening one.
323: * Otherwise, return the macro itself.
1.22 schwarze 324: */
1.176 schwarze 325: static enum roff_tok
326: rew_alt(enum roff_tok tok)
1.1 kristaps 327: {
328: switch (tok) {
1.88 schwarze 329: case MDOC_Ac:
1.158 schwarze 330: return MDOC_Ao;
1.88 schwarze 331: case MDOC_Bc:
1.158 schwarze 332: return MDOC_Bo;
1.88 schwarze 333: case MDOC_Brc:
1.158 schwarze 334: return MDOC_Bro;
1.88 schwarze 335: case MDOC_Dc:
1.158 schwarze 336: return MDOC_Do;
1.88 schwarze 337: case MDOC_Ec:
1.158 schwarze 338: return MDOC_Eo;
1.88 schwarze 339: case MDOC_Ed:
1.158 schwarze 340: return MDOC_Bd;
1.88 schwarze 341: case MDOC_Ef:
1.158 schwarze 342: return MDOC_Bf;
1.88 schwarze 343: case MDOC_Ek:
1.158 schwarze 344: return MDOC_Bk;
1.88 schwarze 345: case MDOC_El:
1.158 schwarze 346: return MDOC_Bl;
1.88 schwarze 347: case MDOC_Fc:
1.158 schwarze 348: return MDOC_Fo;
1.88 schwarze 349: case MDOC_Oc:
1.158 schwarze 350: return MDOC_Oo;
1.88 schwarze 351: case MDOC_Pc:
1.158 schwarze 352: return MDOC_Po;
1.88 schwarze 353: case MDOC_Qc:
1.158 schwarze 354: return MDOC_Qo;
1.88 schwarze 355: case MDOC_Re:
1.158 schwarze 356: return MDOC_Rs;
1.88 schwarze 357: case MDOC_Sc:
1.158 schwarze 358: return MDOC_So;
1.88 schwarze 359: case MDOC_Xc:
1.158 schwarze 360: return MDOC_Xo;
1.1 kristaps 361: default:
1.158 schwarze 362: return tok;
1.1 kristaps 363: }
364: }
365:
1.105 schwarze 366: static void
1.176 schwarze 367: rew_elem(struct roff_man *mdoc, enum roff_tok tok)
1.1 kristaps 368: {
1.141 schwarze 369: struct roff_node *n;
1.1 kristaps 370:
371: n = mdoc->last;
1.140 schwarze 372: if (n->type != ROFFT_ELEM)
1.1 kristaps 373: n = n->parent;
1.140 schwarze 374: assert(n->type == ROFFT_ELEM);
1.1 kristaps 375: assert(tok == n->tok);
1.105 schwarze 376: rew_last(mdoc, n);
1.1 kristaps 377: }
378:
1.170 schwarze 379: static void
380: break_intermediate(struct roff_node *n, struct roff_node *breaker)
381: {
1.174 schwarze 382: if (n != breaker &&
383: n->type != ROFFT_BLOCK && n->type != ROFFT_HEAD &&
384: (n->type != ROFFT_BODY || n->end != ENDBODY_NOT))
385: n = n->parent;
1.170 schwarze 386: while (n != breaker) {
387: if ( ! (n->flags & NODE_VALID))
388: n->flags |= NODE_BROKEN;
389: n = n->parent;
390: }
391: }
392:
1.47 schwarze 393: /*
1.143 schwarze 394: * If there is an open sub-block of the target requiring
395: * explicit close-out, postpone closing out the target until
396: * the rew_pending() call closing out the sub-block.
397: */
398: static int
1.176 schwarze 399: find_pending(struct roff_man *mdoc, enum roff_tok tok, int line, int ppos,
1.143 schwarze 400: struct roff_node *target)
401: {
402: struct roff_node *n;
403: int irc;
404:
1.172 schwarze 405: if (target->flags & NODE_VALID)
406: return 0;
407:
1.143 schwarze 408: irc = 0;
409: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
1.170 schwarze 410: if (n->flags & NODE_ENDED)
1.143 schwarze 411: continue;
412: if (n->type == ROFFT_BLOCK &&
413: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
414: irc = 1;
1.174 schwarze 415: break_intermediate(mdoc->last, target);
1.143 schwarze 416: if (target->type == ROFFT_HEAD)
1.169 schwarze 417: target->flags |= NODE_ENDED;
1.166 schwarze 418: else if ( ! (target->flags & NODE_ENDED)) {
1.143 schwarze 419: mandoc_vmsg(MANDOCERR_BLK_NEST,
420: mdoc->parse, line, ppos,
1.176 schwarze 421: "%s breaks %s", roff_name[tok],
422: roff_name[n->tok]);
1.143 schwarze 423: mdoc_endbody_alloc(mdoc, line, ppos,
1.173 schwarze 424: tok, target);
1.143 schwarze 425: }
426: }
427: }
1.158 schwarze 428: return irc;
1.143 schwarze 429: }
430:
431: /*
1.66 schwarze 432: * Allocate a word and check whether it's punctuation or not.
433: * Punctuation consists of those tokens found in mdoc_isdelim().
434: */
1.106 schwarze 435: static void
1.145 schwarze 436: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.80 schwarze 437: enum mdelim d, int may_append)
1.66 schwarze 438: {
1.88 schwarze 439:
1.106 schwarze 440: if (d == DELIM_MAX)
1.66 schwarze 441: d = mdoc_isdelim(p);
442:
1.80 schwarze 443: if (may_append &&
1.106 schwarze 444: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.140 schwarze 445: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.106 schwarze 446: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.148 schwarze 447: roff_word_append(mdoc, p);
1.106 schwarze 448: return;
1.80 schwarze 449: }
450:
1.148 schwarze 451: roff_word_alloc(mdoc, line, col, p);
1.66 schwarze 452:
1.71 schwarze 453: /*
1.100 schwarze 454: * If the word consists of a bare delimiter,
455: * flag the new node accordingly,
456: * unless doing so was vetoed by the invoking macro.
457: * Always clear the veto, it is only valid for one word.
1.71 schwarze 458: */
459:
1.100 schwarze 460: if (d == DELIM_OPEN)
1.166 schwarze 461: mdoc->last->flags |= NODE_DELIMO;
1.100 schwarze 462: else if (d == DELIM_CLOSE &&
463: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 464: mdoc->last->parent->tok != MDOC_Fd)
1.166 schwarze 465: mdoc->last->flags |= NODE_DELIMC;
1.100 schwarze 466: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 467: }
1.1 kristaps 468:
1.106 schwarze 469: static void
1.145 schwarze 470: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1 kristaps 471: {
1.109 schwarze 472: char *p;
1.42 schwarze 473: int la;
1.1 kristaps 474:
1.106 schwarze 475: if (buf[*pos] == '\0')
476: return;
1.1 kristaps 477:
478: for (;;) {
1.42 schwarze 479: la = *pos;
1.147 schwarze 480: if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
481: ARGS_EOLN)
1.1 kristaps 482: break;
1.80 schwarze 483: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 484:
1.42 schwarze 485: /*
486: * If we encounter end-of-sentence symbols, then trigger
487: * the double-space.
488: *
1.68 schwarze 489: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 490: * the last symbol, such that `. )' will cause the
491: * correct double-spacing. However, (1) groff isn't
492: * smart enough to do this and (2) it would require
493: * knowing which symbols break this behaviour, for
1.68 schwarze 494: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 495: */
1.106 schwarze 496:
1.84 schwarze 497: if (mandoc_eos(p, strlen(p)))
1.166 schwarze 498: mdoc->last->flags |= NODE_EOS;
1.1 kristaps 499: }
500: }
501:
502: /*
1.109 schwarze 503: * Parse one word.
504: * If it is a macro, call it and return 1.
505: * Otherwise, allocate it and return 0.
506: */
507: static int
508: macro_or_word(MACRO_PROT_ARGS, int parsed)
509: {
510: char *p;
1.141 schwarze 511: int ntok;
1.109 schwarze 512:
513: p = buf + ppos;
1.147 schwarze 514: ntok = TOKEN_NONE;
1.113 schwarze 515: if (*p == '"')
1.109 schwarze 516: p++;
1.113 schwarze 517: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 518: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 519:
1.147 schwarze 520: if (ntok == TOKEN_NONE) {
521: dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.109 schwarze 522: mdoc_macros[tok].flags & MDOC_JOIN);
1.158 schwarze 523: return 0;
1.109 schwarze 524: } else {
1.176 schwarze 525: if (tok != TOKEN_NONE &&
526: mdoc_macros[tok].fp == in_line_eoln)
1.109 schwarze 527: rew_elem(mdoc, tok);
528: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.147 schwarze 529: if (tok == TOKEN_NONE)
1.109 schwarze 530: append_delims(mdoc, line, pos, buf);
1.158 schwarze 531: return 1;
1.109 schwarze 532: }
533: }
534:
535: /*
1.88 schwarze 536: * Close out block partial/full explicit.
1.1 kristaps 537: */
1.107 schwarze 538: static void
1.1 kristaps 539: blk_exp_close(MACRO_PROT_ARGS)
540: {
1.141 schwarze 541: struct roff_node *body; /* Our own body. */
542: struct roff_node *endbody; /* Our own end marker. */
543: struct roff_node *itblk; /* An It block starting later. */
544: struct roff_node *later; /* A sub-block starting later. */
545: struct roff_node *n; /* Search back to our block. */
1.144 schwarze 546: struct roff_node *target; /* For find_pending(). */
1.47 schwarze 547:
1.144 schwarze 548: int j, lastarg, maxargs, nl, pending;
1.36 schwarze 549: enum margserr ac;
1.176 schwarze 550: enum roff_tok atok, ntok;
1.1 kristaps 551: char *p;
552:
1.76 schwarze 553: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 554:
1.1 kristaps 555: switch (tok) {
1.88 schwarze 556: case MDOC_Ec:
1.1 kristaps 557: maxargs = 1;
558: break;
1.88 schwarze 559: case MDOC_Ek:
1.82 schwarze 560: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 561: /* FALLTHROUGH */
1.1 kristaps 562: default:
563: maxargs = 0;
564: break;
565: }
566:
1.165 schwarze 567: /* Search backwards for the beginning of our own body. */
568:
569: atok = rew_alt(tok);
570: body = NULL;
571: for (n = mdoc->last; n; n = n->parent) {
1.166 schwarze 572: if (n->flags & NODE_ENDED || n->tok != atok ||
1.165 schwarze 573: n->type != ROFFT_BODY || n->end != ENDBODY_NOT)
574: continue;
575: body = n;
576: break;
577: }
578:
1.47 schwarze 579: /*
580: * Search backwards for beginnings of blocks,
581: * both of our own and of pending sub-blocks.
582: */
1.107 schwarze 583:
1.165 schwarze 584: endbody = itblk = later = NULL;
1.76 schwarze 585: for (n = mdoc->last; n; n = n->parent) {
1.170 schwarze 586: if (n->flags & NODE_ENDED)
1.47 schwarze 587: continue;
588:
1.165 schwarze 589: /*
1.167 schwarze 590: * Mismatching end macros can never break anything
1.165 schwarze 591: * and we only care about the breaking of BLOCKs.
592: */
1.47 schwarze 593:
1.167 schwarze 594: if (body == NULL || n->type != ROFFT_BLOCK)
1.47 schwarze 595: continue;
1.116 schwarze 596:
1.167 schwarze 597: /*
598: * SYNOPSIS name blocks can not be broken themselves,
599: * but they do get broken together with a broken child.
600: */
601:
602: if (n->tok == MDOC_Nm) {
603: if (later != NULL)
604: n->flags |= NODE_BROKEN | NODE_ENDED;
605: continue;
606: }
607:
1.116 schwarze 608: if (n->tok == MDOC_It) {
1.127 schwarze 609: itblk = n;
1.116 schwarze 610: continue;
611: }
612:
1.47 schwarze 613: if (atok == n->tok) {
614:
615: /*
616: * Found the start of our own block.
617: * When there is no pending sub block,
618: * just proceed to closing out.
619: */
1.107 schwarze 620:
1.116 schwarze 621: if (later == NULL ||
1.127 schwarze 622: (tok == MDOC_El && itblk == NULL))
1.47 schwarze 623: break;
624:
1.88 schwarze 625: /*
1.123 schwarze 626: * When there is a pending sub block, postpone
627: * closing out the current block until the
628: * rew_pending() closing out the sub-block.
1.47 schwarze 629: * Mark the place where the formatting - but not
630: * the scope - of the current block ends.
631: */
1.107 schwarze 632:
1.139 schwarze 633: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
634: line, ppos, "%s breaks %s",
1.176 schwarze 635: roff_name[atok], roff_name[later->tok]);
1.139 schwarze 636:
1.122 schwarze 637: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.173 schwarze 638: atok, body);
1.107 schwarze 639:
1.139 schwarze 640: if (tok == MDOC_El)
1.166 schwarze 641: itblk->flags |= NODE_ENDED | NODE_BROKEN;
1.139 schwarze 642:
1.107 schwarze 643: /*
644: * If a block closing macro taking arguments
645: * breaks another block, put the arguments
1.122 schwarze 646: * into the end marker.
1.107 schwarze 647: */
648:
1.122 schwarze 649: if (maxargs)
1.145 schwarze 650: mdoc->next = ROFF_NEXT_CHILD;
1.47 schwarze 651: break;
1.138 schwarze 652: }
653:
1.171 schwarze 654: /*
655: * Explicit blocks close out description lines, but
656: * even those can get broken together with a child.
657: */
1.138 schwarze 658:
659: if (n->tok == MDOC_Nd) {
1.171 schwarze 660: if (later != NULL)
661: n->flags |= NODE_BROKEN | NODE_ENDED;
662: else
663: rew_last(mdoc, n);
1.138 schwarze 664: continue;
1.47 schwarze 665: }
666:
1.139 schwarze 667: /* Breaking an open sub block. */
1.107 schwarze 668:
1.170 schwarze 669: break_intermediate(mdoc->last, body);
1.166 schwarze 670: n->flags |= NODE_BROKEN;
1.139 schwarze 671: if (later == NULL)
1.47 schwarze 672: later = n;
673: }
1.122 schwarze 674:
675: if (body == NULL) {
676: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
1.176 schwarze 677: line, ppos, roff_name[tok]);
1.122 schwarze 678: if (maxargs && endbody == NULL) {
679: /*
680: * Stray .Ec without previous .Eo:
681: * Break the output line, keep the arguments.
682: */
1.149 schwarze 683: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.122 schwarze 684: rew_elem(mdoc, MDOC_br);
685: }
686: } else if (endbody == NULL) {
687: rew_last(mdoc, body);
688: if (maxargs)
689: mdoc_tail_alloc(mdoc, line, ppos, atok);
690: }
1.47 schwarze 691:
1.106 schwarze 692: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
693: if (buf[*pos] != '\0')
1.93 schwarze 694: mandoc_vmsg(MANDOCERR_ARG_SKIP,
695: mdoc->parse, line, ppos,
1.176 schwarze 696: "%s %s", roff_name[tok],
1.93 schwarze 697: buf + *pos);
1.127 schwarze 698: if (endbody == NULL && n != NULL)
1.123 schwarze 699: rew_pending(mdoc, n);
1.107 schwarze 700: return;
1.1 kristaps 701: }
702:
1.122 schwarze 703: if (endbody != NULL)
704: n = endbody;
1.153 schwarze 705:
706: ntok = TOKEN_NONE;
1.104 schwarze 707: for (j = 0; ; j++) {
1.1 kristaps 708: lastarg = *pos;
709:
1.142 schwarze 710: if (j == maxargs && n != NULL)
711: rew_last(mdoc, n);
1.1 kristaps 712:
1.76 schwarze 713: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 714: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 715: break;
716:
1.147 schwarze 717: ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.111 schwarze 718: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 719:
1.147 schwarze 720: if (ntok == TOKEN_NONE) {
1.106 schwarze 721: dword(mdoc, line, lastarg, p, DELIM_MAX,
722: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 723: continue;
724: }
1.1 kristaps 725:
1.142 schwarze 726: if (n != NULL)
727: rew_last(mdoc, n);
1.79 schwarze 728: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 729: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 730: break;
1.1 kristaps 731: }
732:
1.144 schwarze 733: if (n != NULL) {
1.169 schwarze 734: pending = 0;
1.166 schwarze 735: if (ntok != TOKEN_NONE && n->flags & NODE_BROKEN) {
1.144 schwarze 736: target = n;
737: do
738: target = target->parent;
1.166 schwarze 739: while ( ! (target->flags & NODE_ENDED));
1.172 schwarze 740: pending = find_pending(mdoc, ntok, line, ppos, target);
1.169 schwarze 741: }
1.144 schwarze 742: if ( ! pending)
743: rew_pending(mdoc, n);
744: }
1.106 schwarze 745: if (nl)
746: append_delims(mdoc, line, pos, buf);
1.1 kristaps 747: }
748:
1.107 schwarze 749: static void
1.1 kristaps 750: in_line(MACRO_PROT_ARGS)
751: {
1.100 schwarze 752: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.176 schwarze 753: enum roff_tok ntok;
1.36 schwarze 754: enum margserr ac;
1.40 schwarze 755: enum mdelim d;
1.36 schwarze 756: struct mdoc_arg *arg;
757: char *p;
1.1 kristaps 758:
1.76 schwarze 759: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 760:
1.1 kristaps 761: /*
762: * Whether we allow ignored elements (those without content,
763: * usually because of reserved words) to squeak by.
764: */
1.32 schwarze 765:
1.1 kristaps 766: switch (tok) {
1.88 schwarze 767: case MDOC_An:
768: case MDOC_Ar:
769: case MDOC_Fl:
770: case MDOC_Mt:
771: case MDOC_Nm:
772: case MDOC_Pa:
1.1 kristaps 773: nc = 1;
774: break;
775: default:
776: nc = 0;
777: break;
778: }
779:
1.108 schwarze 780: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 781:
1.100 schwarze 782: d = DELIM_NONE;
783: firstarg = 1;
1.98 schwarze 784: mayopen = 1;
1.45 schwarze 785: for (cnt = scope = 0;; ) {
1.1 kristaps 786: la = *pos;
1.76 schwarze 787: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 788:
1.100 schwarze 789: /*
790: * At the end of a macro line,
791: * opening delimiters do not suppress spacing.
792: */
793:
794: if (ac == ARGS_EOLN) {
795: if (d == DELIM_OPEN)
1.166 schwarze 796: mdoc->last->flags &= ~NODE_DELIMO;
1.1 kristaps 797: break;
1.100 schwarze 798: }
799:
800: /*
801: * The rest of the macro line is only punctuation,
802: * to be handled by append_delims().
803: * If there were no other arguments,
804: * do not allow the first one to suppress spacing,
805: * even if it turns out to be a closing one.
806: */
807:
808: if (ac == ARGS_PUNCT) {
1.132 schwarze 809: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.100 schwarze 810: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 811: break;
1.100 schwarze 812: }
1.1 kristaps 813:
1.101 schwarze 814: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.147 schwarze 815: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1 kristaps 816:
1.88 schwarze 817: /*
1.1 kristaps 818: * In this case, we've located a submacro and must
819: * execute it. Close out scope, if open. If no
820: * elements have been generated, either create one (nc)
821: * or raise a warning.
822: */
823:
1.147 schwarze 824: if (ntok != TOKEN_NONE) {
1.105 schwarze 825: if (scope)
826: rew_elem(mdoc, tok);
1.106 schwarze 827: if (nc && ! cnt) {
828: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 829: rew_last(mdoc, mdoc->last);
1.106 schwarze 830: } else if ( ! nc && ! cnt) {
1.1 kristaps 831: mdoc_argv_free(arg);
1.92 schwarze 832: mandoc_msg(MANDOCERR_MACRO_EMPTY,
833: mdoc->parse, line, ppos,
1.176 schwarze 834: roff_name[tok]);
1.1 kristaps 835: }
1.107 schwarze 836: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 837: if (nl)
838: append_delims(mdoc, line, pos, buf);
1.107 schwarze 839: return;
1.88 schwarze 840: }
1.1 kristaps 841:
1.88 schwarze 842: /*
1.1 kristaps 843: * Non-quote-enclosed punctuation. Set up our scope, if
844: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 845: * the word.
1.1 kristaps 846: */
847:
1.106 schwarze 848: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 849:
1.45 schwarze 850: if (DELIM_NONE != d) {
851: /*
852: * If we encounter closing punctuation, no word
1.100 schwarze 853: * has been emitted, no scope is open, and we're
1.45 schwarze 854: * allowed to have an empty element, then start
1.98 schwarze 855: * a new scope.
1.45 schwarze 856: */
1.98 schwarze 857: if ((d == DELIM_CLOSE ||
858: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 859: !cnt && !scope && nc && mayopen) {
1.106 schwarze 860: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 861: scope = 1;
1.98 schwarze 862: cnt++;
1.106 schwarze 863: if (tok == MDOC_Nm)
1.98 schwarze 864: mayopen = 0;
1.45 schwarze 865: }
866: /*
867: * Close out our scope, if one is open, before
868: * any punctuation.
869: */
1.105 schwarze 870: if (scope)
871: rew_elem(mdoc, tok);
1.45 schwarze 872: scope = 0;
1.101 schwarze 873: if (tok == MDOC_Fn)
874: mayopen = 0;
1.98 schwarze 875: } else if (mayopen && !scope) {
1.106 schwarze 876: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 877: scope = 1;
1.98 schwarze 878: cnt++;
1.1 kristaps 879: }
1.66 schwarze 880:
1.106 schwarze 881: dword(mdoc, line, la, p, d,
1.176 schwarze 882: mdoc_macros[tok].flags & MDOC_JOIN);
1.27 schwarze 883:
884: /*
1.100 schwarze 885: * If the first argument is a closing delimiter,
886: * do not suppress spacing before it.
887: */
888:
889: if (firstarg && d == DELIM_CLOSE && !nc)
1.166 schwarze 890: mdoc->last->flags &= ~NODE_DELIMC;
1.100 schwarze 891: firstarg = 0;
892:
893: /*
1.27 schwarze 894: * `Fl' macros have their scope re-opened with each new
895: * word so that the `-' can be added to each one without
896: * having to parse out spaces.
897: */
1.106 schwarze 898: if (scope && tok == MDOC_Fl) {
1.105 schwarze 899: rew_elem(mdoc, tok);
1.45 schwarze 900: scope = 0;
1.27 schwarze 901: }
1.1 kristaps 902: }
903:
1.175 schwarze 904: if (scope && tok != MDOC_Lk) {
1.105 schwarze 905: rew_elem(mdoc, tok);
1.175 schwarze 906: scope = 0;
907: }
1.1 kristaps 908:
909: /*
910: * If no elements have been collected and we're allowed to have
911: * empties (nc), open a scope and close it out. Otherwise,
912: * raise a warning.
913: */
1.32 schwarze 914:
1.106 schwarze 915: if ( ! cnt) {
916: if (nc) {
917: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
918: rew_last(mdoc, mdoc->last);
919: } else {
920: mdoc_argv_free(arg);
921: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.176 schwarze 922: line, ppos, roff_name[tok]);
1.106 schwarze 923: }
1.1 kristaps 924: }
1.106 schwarze 925: if (nl)
926: append_delims(mdoc, line, pos, buf);
1.175 schwarze 927: if (scope)
928: rew_elem(mdoc, tok);
1.1 kristaps 929: }
930:
1.107 schwarze 931: static void
1.1 kristaps 932: blk_full(MACRO_PROT_ARGS)
933: {
1.109 schwarze 934: int la, nl, parsed;
1.1 kristaps 935: struct mdoc_arg *arg;
1.141 schwarze 936: struct roff_node *blk; /* Our own or a broken block. */
937: struct roff_node *head; /* Our own head. */
938: struct roff_node *body; /* Our own body. */
939: struct roff_node *n;
1.37 schwarze 940: enum margserr ac, lac;
1.1 kristaps 941: char *p;
942:
1.76 schwarze 943: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 944:
1.133 schwarze 945: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
946: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.176 schwarze 947: line, ppos, roff_name[tok]);
1.133 schwarze 948: return;
949: }
950:
1.127 schwarze 951: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
952:
953: /* Here, tok is one of Sh Ss Nm Nd It. */
954:
955: blk = NULL;
956: for (n = mdoc->last; n != NULL; n = n->parent) {
1.166 schwarze 957: if (n->flags & NODE_ENDED) {
958: if ( ! (n->flags & NODE_VALID))
959: n->flags |= NODE_BROKEN;
1.139 schwarze 960: continue;
961: }
1.140 schwarze 962: if (n->type != ROFFT_BLOCK)
1.127 schwarze 963: continue;
1.139 schwarze 964:
1.127 schwarze 965: if (tok == MDOC_It && n->tok == MDOC_Bl) {
966: if (blk != NULL) {
967: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
968: mdoc->parse, line, ppos,
969: "It breaks %s",
1.176 schwarze 970: roff_name[blk->tok]);
1.127 schwarze 971: rew_pending(mdoc, blk);
972: }
973: break;
974: }
975:
976: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
977: switch (tok) {
978: case MDOC_Sh:
979: case MDOC_Ss:
980: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
981: mdoc->parse, line, ppos,
1.176 schwarze 982: "%s breaks %s", roff_name[tok],
983: roff_name[n->tok]);
1.127 schwarze 984: rew_pending(mdoc, n);
1.136 schwarze 985: n = mdoc->last;
1.127 schwarze 986: continue;
987: case MDOC_It:
988: /* Delay in case it's astray. */
989: blk = n;
990: continue;
991: default:
992: break;
993: }
994: break;
995: }
996:
997: /* Here, n is one of Sh Ss Nm Nd It. */
1.95 schwarze 998:
1.127 schwarze 999: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
1000: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
1001: (tok != MDOC_It && n->tok == MDOC_It)))))
1.95 schwarze 1002: break;
1.127 schwarze 1003:
1004: /* Item breaking an explicit block. */
1005:
1006: if (blk != NULL) {
1007: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
1008: mdoc->parse, line, ppos,
1.176 schwarze 1009: "It breaks %s", roff_name[blk->tok]);
1.127 schwarze 1010: rew_pending(mdoc, blk);
1.128 schwarze 1011: blk = NULL;
1.127 schwarze 1012: }
1013:
1014: /* Close out prior implicit scopes. */
1015:
1.167 schwarze 1016: rew_pending(mdoc, n);
1.127 schwarze 1017: }
1018:
1019: /* Skip items outside lists. */
1020:
1021: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.95 schwarze 1022: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1023: line, ppos, "It %s", buf + *pos);
1.149 schwarze 1024: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.105 schwarze 1025: rew_elem(mdoc, MDOC_br);
1.107 schwarze 1026: return;
1.95 schwarze 1027: }
1.1 kristaps 1028: }
1029:
1.32 schwarze 1030: /*
1.68 schwarze 1031: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 1032: * macro openings. Implicit ones first close out prior scope
1033: * (seen above). Delay opening the head until necessary to
1034: * allow leading punctuation to print. Special consideration
1035: * for `It -column', which has phrase-part syntax instead of
1036: * regular child nodes.
1037: */
1038:
1.108 schwarze 1039: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.121 schwarze 1040: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1041: head = body = NULL;
1.1 kristaps 1042:
1.32 schwarze 1043: /*
1.73 schwarze 1044: * Exception: Heads of `It' macros in `-diag' lists are not
1045: * parsed, even though `It' macros in general are parsed.
1046: */
1.107 schwarze 1047:
1.109 schwarze 1048: parsed = tok != MDOC_It ||
1049: mdoc->last->parent->tok != MDOC_Bl ||
1050: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1051:
1052: /*
1.32 schwarze 1053: * The `Nd' macro has all arguments in its body: it's a hybrid
1054: * of block partial-explicit and full-implicit. Stupid.
1055: */
1.12 schwarze 1056:
1.106 schwarze 1057: if (tok == MDOC_Nd) {
1.146 schwarze 1058: head = roff_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 1059: rew_last(mdoc, head);
1.146 schwarze 1060: body = roff_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1061: }
1062:
1.106 schwarze 1063: if (tok == MDOC_Bk)
1.80 schwarze 1064: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1065:
1.161 schwarze 1066: ac = ARGS_EOLN;
1.106 schwarze 1067: for (;;) {
1.161 schwarze 1068:
1069: /*
1070: * If we are right after a tab character,
1071: * do not parse the first word for macros.
1072: */
1073:
1074: if (mdoc->flags & MDOC_PHRASEQN) {
1075: mdoc->flags &= ~MDOC_PHRASEQN;
1076: mdoc->flags |= MDOC_PHRASEQF;
1077: }
1078:
1.32 schwarze 1079: la = *pos;
1.106 schwarze 1080: lac = ac;
1.76 schwarze 1081: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1082: if (ac == ARGS_EOLN) {
1.161 schwarze 1083: if (lac != ARGS_PHRASE ||
1084: ! (mdoc->flags & MDOC_PHRASEQF))
1.46 schwarze 1085: break;
1.161 schwarze 1086:
1.46 schwarze 1087: /*
1.161 schwarze 1088: * This line ends in a tab; start the next
1089: * column now, with a leading blank.
1.46 schwarze 1090: */
1.161 schwarze 1091:
1.123 schwarze 1092: if (body != NULL)
1093: rew_last(mdoc, body);
1.146 schwarze 1094: body = roff_body_alloc(mdoc, line, ppos, tok);
1.161 schwarze 1095: roff_word_alloc(mdoc, line, ppos, "\\&");
1.1 kristaps 1096: break;
1.41 schwarze 1097: }
1.161 schwarze 1098:
1.130 schwarze 1099: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1100: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1101: mdoc->parse, line, la, "%s ... %s",
1.176 schwarze 1102: roff_name[tok], buf + la);
1.130 schwarze 1103: break;
1104: }
1.129 schwarze 1105: if (tok == MDOC_Rs) {
1106: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1107: line, la, "Rs %s", buf + la);
1108: break;
1109: }
1110: if (ac == ARGS_PUNCT)
1111: break;
1.41 schwarze 1112:
1.88 schwarze 1113: /*
1.46 schwarze 1114: * Emit leading punctuation (i.e., punctuation before
1.140 schwarze 1115: * the ROFFT_HEAD) for non-phrase types.
1.46 schwarze 1116: */
1.32 schwarze 1117:
1.106 schwarze 1118: if (head == NULL &&
1119: ac != ARGS_PHRASE &&
1120: ac != ARGS_QWORD &&
1121: mdoc_isdelim(p) == DELIM_OPEN) {
1122: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1123: continue;
1124: }
1125:
1.46 schwarze 1126: /* Open a head if one hasn't been opened. */
1.32 schwarze 1127:
1.106 schwarze 1128: if (head == NULL)
1.146 schwarze 1129: head = roff_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1130:
1.161 schwarze 1131: if (ac == ARGS_PHRASE) {
1.107 schwarze 1132:
1.46 schwarze 1133: /*
1134: * If we haven't opened a body yet, rewind the
1135: * head; if we have, rewind that instead.
1136: */
1137:
1.123 schwarze 1138: rew_last(mdoc, body == NULL ? head : body);
1.146 schwarze 1139: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1140:
1.161 schwarze 1141: /* Process to the tab or to the end of the line. */
1.46 schwarze 1142:
1.161 schwarze 1143: mdoc->flags |= MDOC_PHRASE;
1.147 schwarze 1144: parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.161 schwarze 1145: mdoc->flags &= ~MDOC_PHRASE;
1.160 schwarze 1146:
1147: /* There may have been `Ta' macros. */
1148:
1149: while (body->next != NULL)
1150: body = body->next;
1.1 kristaps 1151: continue;
1152: }
1153:
1.109 schwarze 1154: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1155: break;
1.32 schwarze 1156: }
1.1 kristaps 1157:
1.166 schwarze 1158: if (blk->flags & NODE_VALID)
1.121 schwarze 1159: return;
1.106 schwarze 1160: if (head == NULL)
1.146 schwarze 1161: head = roff_head_alloc(mdoc, line, ppos, tok);
1.130 schwarze 1162: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.106 schwarze 1163: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1164: if (body != NULL)
1.46 schwarze 1165: goto out;
1.143 schwarze 1166: if (find_pending(mdoc, tok, line, ppos, head))
1.139 schwarze 1167: return;
1.54 schwarze 1168:
1.32 schwarze 1169: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1170:
1.123 schwarze 1171: rew_last(mdoc, head);
1.146 schwarze 1172: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1173: out:
1.106 schwarze 1174: if (mdoc->flags & MDOC_FREECOL) {
1.123 schwarze 1175: rew_last(mdoc, body);
1176: rew_last(mdoc, blk);
1.106 schwarze 1177: mdoc->flags &= ~MDOC_FREECOL;
1178: }
1.1 kristaps 1179: }
1180:
1.107 schwarze 1181: static void
1.1 kristaps 1182: blk_part_imp(MACRO_PROT_ARGS)
1183: {
1.43 schwarze 1184: int la, nl;
1.36 schwarze 1185: enum margserr ac;
1.1 kristaps 1186: char *p;
1.141 schwarze 1187: struct roff_node *blk; /* saved block context */
1188: struct roff_node *body; /* saved body context */
1189: struct roff_node *n;
1.1 kristaps 1190:
1.76 schwarze 1191: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1192:
1.32 schwarze 1193: /*
1194: * A macro that spans to the end of the line. This is generally
1195: * (but not necessarily) called as the first macro. The block
1196: * has a head as the immediate child, which is always empty,
1197: * followed by zero or more opening punctuation nodes, then the
1198: * body (which may be empty, depending on the macro), then zero
1199: * or more closing punctuation nodes.
1200: */
1.22 schwarze 1201:
1.106 schwarze 1202: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.146 schwarze 1203: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1204:
1.32 schwarze 1205: /*
1206: * Open the body scope "on-demand", that is, after we've
1207: * processed all our the leading delimiters (open parenthesis,
1208: * etc.).
1209: */
1.1 kristaps 1210:
1.32 schwarze 1211: for (body = NULL; ; ) {
1.22 schwarze 1212: la = *pos;
1.76 schwarze 1213: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1214: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1215: break;
1216:
1.106 schwarze 1217: if (body == NULL && ac != ARGS_QWORD &&
1218: mdoc_isdelim(p) == DELIM_OPEN) {
1219: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1220: continue;
1.80 schwarze 1221: }
1.1 kristaps 1222:
1.106 schwarze 1223: if (body == NULL)
1.146 schwarze 1224: body = roff_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1225:
1.109 schwarze 1226: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1227: break;
1.32 schwarze 1228: }
1.106 schwarze 1229: if (body == NULL)
1.146 schwarze 1230: body = roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1231:
1.143 schwarze 1232: if (find_pending(mdoc, tok, line, ppos, body))
1.139 schwarze 1233: return;
1234:
1.120 schwarze 1235: rew_last(mdoc, body);
1.106 schwarze 1236: if (nl)
1237: append_delims(mdoc, line, pos, buf);
1.122 schwarze 1238: rew_pending(mdoc, blk);
1.74 schwarze 1239:
1240: /* Move trailing .Ns out of scope. */
1241:
1242: for (n = body->child; n && n->next; n = n->next)
1243: /* Do nothing. */ ;
1.106 schwarze 1244: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1245: mdoc_node_relink(mdoc, n);
1.1 kristaps 1246: }
1247:
1.107 schwarze 1248: static void
1.1 kristaps 1249: blk_part_exp(MACRO_PROT_ARGS)
1250: {
1.37 schwarze 1251: int la, nl;
1.36 schwarze 1252: enum margserr ac;
1.141 schwarze 1253: struct roff_node *head; /* keep track of head */
1.1 kristaps 1254: char *p;
1255:
1.76 schwarze 1256: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1257:
1.32 schwarze 1258: /*
1259: * The opening of an explicit macro having zero or more leading
1260: * punctuation nodes; a head with optional single element (the
1261: * case of `Eo'); and a body that may be empty.
1262: */
1.22 schwarze 1263:
1.149 schwarze 1264: roff_block_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1265: head = NULL;
1266: for (;;) {
1.22 schwarze 1267: la = *pos;
1.76 schwarze 1268: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1269: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1270: break;
1271:
1.32 schwarze 1272: /* Flush out leading punctuation. */
1273:
1.106 schwarze 1274: if (head == NULL && ac != ARGS_QWORD &&
1275: mdoc_isdelim(p) == DELIM_OPEN) {
1276: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1277: continue;
1.80 schwarze 1278: }
1.32 schwarze 1279:
1.106 schwarze 1280: if (head == NULL) {
1.146 schwarze 1281: head = roff_head_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1282: if (tok == MDOC_Eo) /* Not parsed. */
1.106 schwarze 1283: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.119 schwarze 1284: rew_last(mdoc, head);
1.146 schwarze 1285: roff_body_alloc(mdoc, line, ppos, tok);
1.106 schwarze 1286: if (tok == MDOC_Eo)
1.32 schwarze 1287: continue;
1288: }
1289:
1.109 schwarze 1290: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1291: break;
1.1 kristaps 1292: }
1293:
1.32 schwarze 1294: /* Clean-up to leave in a consistent state. */
1295:
1.119 schwarze 1296: if (head == NULL) {
1.146 schwarze 1297: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1298: roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1299: }
1.106 schwarze 1300: if (nl)
1301: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1302: }
1303:
1.107 schwarze 1304: static void
1.1 kristaps 1305: in_line_argn(MACRO_PROT_ARGS)
1306: {
1.36 schwarze 1307: struct mdoc_arg *arg;
1308: char *p;
1.137 schwarze 1309: enum margserr ac;
1.176 schwarze 1310: enum roff_tok ntok;
1.137 schwarze 1311: int state; /* arg#; -1: not yet open; -2: closed */
1312: int la, maxargs, nl;
1.1 kristaps 1313:
1.112 schwarze 1314: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1315:
1.32 schwarze 1316: /*
1317: * A line macro that has a fixed number of arguments (maxargs).
1318: * Only open the scope once the first non-leading-punctuation is
1319: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1320: * keep it open until the maximum number of arguments are
1321: * exhausted.
1322: */
1.1 kristaps 1323:
1324: switch (tok) {
1.88 schwarze 1325: case MDOC_Ap:
1326: case MDOC_Ns:
1327: case MDOC_Ux:
1.1 kristaps 1328: maxargs = 0;
1329: break;
1.88 schwarze 1330: case MDOC_Bx:
1.89 schwarze 1331: case MDOC_Es:
1.88 schwarze 1332: case MDOC_Xr:
1.28 schwarze 1333: maxargs = 2;
1334: break;
1.1 kristaps 1335: default:
1336: maxargs = 1;
1337: break;
1338: }
1339:
1.108 schwarze 1340: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1341:
1.137 schwarze 1342: state = -1;
1.112 schwarze 1343: p = NULL;
1344: for (;;) {
1.22 schwarze 1345: la = *pos;
1.76 schwarze 1346: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.137 schwarze 1347:
1348: if (ac == ARGS_WORD && state == -1 &&
1349: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1350: mdoc_isdelim(p) == DELIM_OPEN) {
1351: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1352: continue;
1353: }
1354:
1355: if (state == -1 && tok != MDOC_In &&
1356: tok != MDOC_St && tok != MDOC_Xr) {
1357: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1358: state = 0;
1359: }
1360:
1.112 schwarze 1361: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.137 schwarze 1362: if (abs(state) < 2 && tok == MDOC_Pf)
1.112 schwarze 1363: mandoc_vmsg(MANDOCERR_PF_SKIP,
1364: mdoc->parse, line, ppos, "Pf %s",
1365: p == NULL ? "at eol" : p);
1.1 kristaps 1366: break;
1.112 schwarze 1367: }
1.1 kristaps 1368:
1.137 schwarze 1369: if (state == maxargs) {
1.105 schwarze 1370: rew_elem(mdoc, tok);
1.137 schwarze 1371: state = -2;
1.32 schwarze 1372: }
1373:
1.137 schwarze 1374: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.147 schwarze 1375: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1376:
1.147 schwarze 1377: if (ntok != TOKEN_NONE) {
1.137 schwarze 1378: if (state >= 0) {
1.105 schwarze 1379: rew_elem(mdoc, tok);
1.137 schwarze 1380: state = -2;
1381: }
1.107 schwarze 1382: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1383: break;
1384: }
1385:
1.137 schwarze 1386: if (ac == ARGS_QWORD ||
1387: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1388: mdoc_isdelim(p) == DELIM_NONE) {
1389: if (state == -1) {
1390: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1391: state = 1;
1392: } else if (state >= 0)
1393: state++;
1394: } else if (state >= 0) {
1.105 schwarze 1395: rew_elem(mdoc, tok);
1.137 schwarze 1396: state = -2;
1.28 schwarze 1397: }
1398:
1.106 schwarze 1399: dword(mdoc, line, la, p, DELIM_MAX,
1.176 schwarze 1400: mdoc_macros[tok].flags & MDOC_JOIN);
1.1 kristaps 1401: }
1402:
1.137 schwarze 1403: if (state == -1) {
1404: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.176 schwarze 1405: line, ppos, roff_name[tok]);
1.137 schwarze 1406: return;
1.112 schwarze 1407: }
1.137 schwarze 1408:
1409: if (state == 0 && tok == MDOC_Pf)
1410: append_delims(mdoc, line, pos, buf);
1411: if (state >= 0)
1.105 schwarze 1412: rew_elem(mdoc, tok);
1.106 schwarze 1413: if (nl)
1414: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1415: }
1416:
1.107 schwarze 1417: static void
1.1 kristaps 1418: in_line_eoln(MACRO_PROT_ARGS)
1419: {
1.141 schwarze 1420: struct roff_node *n;
1.126 schwarze 1421: struct mdoc_arg *arg;
1.1 kristaps 1422:
1.126 schwarze 1423: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1424: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1425: n = mdoc->last;
1.145 schwarze 1426: if (mdoc->next == ROFF_NEXT_SIBLING)
1.126 schwarze 1427: n = n->parent;
1428: if (n->tok == MDOC_Nm)
1.154 schwarze 1429: rew_last(mdoc, n->parent);
1.134 schwarze 1430: }
1431:
1.135 schwarze 1432: if (buf[*pos] == '\0' &&
1.176 schwarze 1433: (tok == MDOC_Fd || *roff_name[tok] == '%')) {
1.134 schwarze 1434: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.176 schwarze 1435: line, ppos, roff_name[tok]);
1.134 schwarze 1436: return;
1.126 schwarze 1437: }
1.53 schwarze 1438:
1.108 schwarze 1439: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1440: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1441: if (parse_rest(mdoc, tok, line, pos, buf))
1442: return;
1443: rew_elem(mdoc, tok);
1444: }
1445:
1446: /*
1447: * The simplest argument parser available: Parse the remaining
1448: * words until the end of the phrase or line and return 0
1449: * or until the next macro, call that macro, and return 1.
1450: */
1451: static int
1.176 schwarze 1452: parse_rest(struct roff_man *mdoc, enum roff_tok tok,
1453: int line, int *pos, char *buf)
1.110 schwarze 1454: {
1455: int la;
1.1 kristaps 1456:
1457: for (;;) {
1458: la = *pos;
1.109 schwarze 1459: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.158 schwarze 1460: return 0;
1.109 schwarze 1461: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.158 schwarze 1462: return 1;
1.1 kristaps 1463: }
1.28 schwarze 1464: }
1465:
1.107 schwarze 1466: static void
1.28 schwarze 1467: ctx_synopsis(MACRO_PROT_ARGS)
1468: {
1.37 schwarze 1469:
1.107 schwarze 1470: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1471: in_line(mdoc, tok, line, ppos, pos, buf);
1472: else if (tok == MDOC_Nm)
1473: blk_full(mdoc, tok, line, ppos, pos, buf);
1474: else {
1475: assert(tok == MDOC_Vt);
1476: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1477: }
1.1 kristaps 1478: }
1479:
1.17 schwarze 1480: /*
1481: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1482: * They're unusual because they're basically free-form text until a
1483: * macro is encountered.
1484: */
1.107 schwarze 1485: static void
1.46 schwarze 1486: phrase_ta(MACRO_PROT_ARGS)
1487: {
1.141 schwarze 1488: struct roff_node *body, *n;
1.46 schwarze 1489:
1.78 schwarze 1490: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1491:
1.123 schwarze 1492: body = NULL;
1493: for (n = mdoc->last; n != NULL; n = n->parent) {
1.166 schwarze 1494: if (n->flags & NODE_ENDED)
1.123 schwarze 1495: continue;
1.140 schwarze 1496: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.123 schwarze 1497: body = n;
1.164 schwarze 1498: if (n->tok == MDOC_Bl && n->end == ENDBODY_NOT)
1.123 schwarze 1499: break;
1500: }
1501:
1.107 schwarze 1502: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1503: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1504: line, ppos, "Ta");
1.107 schwarze 1505: return;
1.78 schwarze 1506: }
1.46 schwarze 1507:
1.78 schwarze 1508: /* Advance to the next column. */
1.106 schwarze 1509:
1.123 schwarze 1510: rew_last(mdoc, body);
1.146 schwarze 1511: roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.147 schwarze 1512: parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.46 schwarze 1513: }
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