Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.178
1.178 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.177 2017/04/29 12:43:55 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 }, /* sp */
1.25 schwarze 199: { in_line_eoln, 0 }, /* %U */
1.80 schwarze 200: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.99 schwarze 201: { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1 kristaps 202: };
1.176 schwarze 203: const struct mdoc_macro *const mdoc_macros = __mdoc_macros - MDOC_Dd;
1.1 kristaps 204:
205:
206: /*
207: * This is called at the end of parsing. It must traverse up the tree,
208: * closing out open [implicit] scopes. Obviously, open explicit scopes
209: * are errors.
210: */
1.107 schwarze 211: void
1.151 schwarze 212: mdoc_endparse(struct roff_man *mdoc)
1.1 kristaps 213: {
1.141 schwarze 214: struct roff_node *n;
1.1 kristaps 215:
216: /* Scan for open explicit scopes. */
217:
1.166 schwarze 218: n = mdoc->last->flags & NODE_VALID ?
1.88 schwarze 219: mdoc->last->parent : mdoc->last;
1.1 kristaps 220:
1.56 schwarze 221: for ( ; n; n = n->parent)
1.140 schwarze 222: if (n->type == ROFFT_BLOCK &&
1.107 schwarze 223: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.94 schwarze 224: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
1.176 schwarze 225: n->line, n->pos, roff_name[n->tok]);
1.1 kristaps 226:
1.22 schwarze 227: /* Rewind to the first. */
228:
1.105 schwarze 229: rew_last(mdoc, mdoc->first);
1.162 schwarze 230: mdoc_state_reset(mdoc);
1.1 kristaps 231: }
232:
1.22 schwarze 233: /*
1.109 schwarze 234: * Look up the macro at *p called by "from",
1.147 schwarze 235: * or as a line macro if from == TOKEN_NONE.
1.22 schwarze 236: */
1.141 schwarze 237: static int
1.145 schwarze 238: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.21 schwarze 239: {
1.176 schwarze 240: enum roff_tok res;
1.1 kristaps 241:
1.161 schwarze 242: if (mdoc->flags & MDOC_PHRASEQF) {
243: mdoc->flags &= ~MDOC_PHRASEQF;
244: return TOKEN_NONE;
245: }
1.147 schwarze 246: if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
1.177 schwarze 247: res = roffhash_find(mdoc->mdocmac, p, 0);
1.147 schwarze 248: if (res != TOKEN_NONE) {
1.111 schwarze 249: if (mdoc_macros[res].flags & MDOC_CALLABLE)
1.158 schwarze 250: return res;
1.178 ! schwarze 251: if (res != MDOC_sp && res != MDOC_ll)
1.111 schwarze 252: mandoc_msg(MANDOCERR_MACRO_CALL,
253: mdoc->parse, line, ppos, p);
254: }
1.109 schwarze 255: }
1.158 schwarze 256: return TOKEN_NONE;
1.1 kristaps 257: }
258:
1.122 schwarze 259: /*
260: * Rewind up to and including a specific node.
261: */
1.105 schwarze 262: static void
1.145 schwarze 263: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1 kristaps 264: {
265:
1.166 schwarze 266: if (to->flags & NODE_VALID)
1.142 schwarze 267: return;
268:
1.1 kristaps 269: while (mdoc->last != to) {
1.162 schwarze 270: mdoc_state(mdoc, mdoc->last);
1.166 schwarze 271: mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.162 schwarze 272: mdoc->last = mdoc->last->parent;
1.1 kristaps 273: }
1.162 schwarze 274: mdoc_state(mdoc, mdoc->last);
1.166 schwarze 275: mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.156 schwarze 276: mdoc->next = ROFF_NEXT_SIBLING;
1.1 kristaps 277: }
278:
1.22 schwarze 279: /*
1.122 schwarze 280: * Rewind up to a specific block, including all blocks that broke it.
281: */
282: static void
1.145 schwarze 283: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.122 schwarze 284: {
285:
1.139 schwarze 286: for (;;) {
287: rew_last(mdoc, n);
288:
1.150 schwarze 289: if (mdoc->last == n) {
290: switch (n->type) {
291: case ROFFT_HEAD:
292: roff_body_alloc(mdoc, n->line, n->pos,
293: n->tok);
1.163 schwarze 294: break;
1.150 schwarze 295: case ROFFT_BLOCK:
296: break;
297: default:
298: return;
299: }
1.166 schwarze 300: if ( ! (n->flags & NODE_BROKEN))
1.150 schwarze 301: return;
302: } else
303: n = mdoc->last;
1.122 schwarze 304:
1.139 schwarze 305: for (;;) {
306: if ((n = n->parent) == NULL)
307: return;
308:
1.140 schwarze 309: if (n->type == ROFFT_BLOCK ||
310: n->type == ROFFT_HEAD) {
1.166 schwarze 311: if (n->flags & NODE_ENDED)
1.139 schwarze 312: break;
313: else
314: return;
315: }
316: }
1.122 schwarze 317: }
318: }
319:
320: /*
1.48 schwarze 321: * For a block closing macro, return the corresponding opening one.
322: * Otherwise, return the macro itself.
1.22 schwarze 323: */
1.176 schwarze 324: static enum roff_tok
325: rew_alt(enum roff_tok tok)
1.1 kristaps 326: {
327: switch (tok) {
1.88 schwarze 328: case MDOC_Ac:
1.158 schwarze 329: return MDOC_Ao;
1.88 schwarze 330: case MDOC_Bc:
1.158 schwarze 331: return MDOC_Bo;
1.88 schwarze 332: case MDOC_Brc:
1.158 schwarze 333: return MDOC_Bro;
1.88 schwarze 334: case MDOC_Dc:
1.158 schwarze 335: return MDOC_Do;
1.88 schwarze 336: case MDOC_Ec:
1.158 schwarze 337: return MDOC_Eo;
1.88 schwarze 338: case MDOC_Ed:
1.158 schwarze 339: return MDOC_Bd;
1.88 schwarze 340: case MDOC_Ef:
1.158 schwarze 341: return MDOC_Bf;
1.88 schwarze 342: case MDOC_Ek:
1.158 schwarze 343: return MDOC_Bk;
1.88 schwarze 344: case MDOC_El:
1.158 schwarze 345: return MDOC_Bl;
1.88 schwarze 346: case MDOC_Fc:
1.158 schwarze 347: return MDOC_Fo;
1.88 schwarze 348: case MDOC_Oc:
1.158 schwarze 349: return MDOC_Oo;
1.88 schwarze 350: case MDOC_Pc:
1.158 schwarze 351: return MDOC_Po;
1.88 schwarze 352: case MDOC_Qc:
1.158 schwarze 353: return MDOC_Qo;
1.88 schwarze 354: case MDOC_Re:
1.158 schwarze 355: return MDOC_Rs;
1.88 schwarze 356: case MDOC_Sc:
1.158 schwarze 357: return MDOC_So;
1.88 schwarze 358: case MDOC_Xc:
1.158 schwarze 359: return MDOC_Xo;
1.1 kristaps 360: default:
1.158 schwarze 361: return tok;
1.1 kristaps 362: }
363: }
364:
1.105 schwarze 365: static void
1.176 schwarze 366: rew_elem(struct roff_man *mdoc, enum roff_tok tok)
1.1 kristaps 367: {
1.141 schwarze 368: struct roff_node *n;
1.1 kristaps 369:
370: n = mdoc->last;
1.140 schwarze 371: if (n->type != ROFFT_ELEM)
1.1 kristaps 372: n = n->parent;
1.140 schwarze 373: assert(n->type == ROFFT_ELEM);
1.1 kristaps 374: assert(tok == n->tok);
1.105 schwarze 375: rew_last(mdoc, n);
1.1 kristaps 376: }
377:
1.170 schwarze 378: static void
379: break_intermediate(struct roff_node *n, struct roff_node *breaker)
380: {
1.174 schwarze 381: if (n != breaker &&
382: n->type != ROFFT_BLOCK && n->type != ROFFT_HEAD &&
383: (n->type != ROFFT_BODY || n->end != ENDBODY_NOT))
384: n = n->parent;
1.170 schwarze 385: while (n != breaker) {
386: if ( ! (n->flags & NODE_VALID))
387: n->flags |= NODE_BROKEN;
388: n = n->parent;
389: }
390: }
391:
1.47 schwarze 392: /*
1.143 schwarze 393: * If there is an open sub-block of the target requiring
394: * explicit close-out, postpone closing out the target until
395: * the rew_pending() call closing out the sub-block.
396: */
397: static int
1.176 schwarze 398: find_pending(struct roff_man *mdoc, enum roff_tok tok, int line, int ppos,
1.143 schwarze 399: struct roff_node *target)
400: {
401: struct roff_node *n;
402: int irc;
403:
1.172 schwarze 404: if (target->flags & NODE_VALID)
405: return 0;
406:
1.143 schwarze 407: irc = 0;
408: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
1.170 schwarze 409: if (n->flags & NODE_ENDED)
1.143 schwarze 410: continue;
411: if (n->type == ROFFT_BLOCK &&
412: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
413: irc = 1;
1.174 schwarze 414: break_intermediate(mdoc->last, target);
1.143 schwarze 415: if (target->type == ROFFT_HEAD)
1.169 schwarze 416: target->flags |= NODE_ENDED;
1.166 schwarze 417: else if ( ! (target->flags & NODE_ENDED)) {
1.143 schwarze 418: mandoc_vmsg(MANDOCERR_BLK_NEST,
419: mdoc->parse, line, ppos,
1.176 schwarze 420: "%s breaks %s", roff_name[tok],
421: roff_name[n->tok]);
1.143 schwarze 422: mdoc_endbody_alloc(mdoc, line, ppos,
1.173 schwarze 423: tok, target);
1.143 schwarze 424: }
425: }
426: }
1.158 schwarze 427: return irc;
1.143 schwarze 428: }
429:
430: /*
1.66 schwarze 431: * Allocate a word and check whether it's punctuation or not.
432: * Punctuation consists of those tokens found in mdoc_isdelim().
433: */
1.106 schwarze 434: static void
1.145 schwarze 435: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.80 schwarze 436: enum mdelim d, int may_append)
1.66 schwarze 437: {
1.88 schwarze 438:
1.106 schwarze 439: if (d == DELIM_MAX)
1.66 schwarze 440: d = mdoc_isdelim(p);
441:
1.80 schwarze 442: if (may_append &&
1.106 schwarze 443: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.140 schwarze 444: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.106 schwarze 445: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.148 schwarze 446: roff_word_append(mdoc, p);
1.106 schwarze 447: return;
1.80 schwarze 448: }
449:
1.148 schwarze 450: roff_word_alloc(mdoc, line, col, p);
1.66 schwarze 451:
1.71 schwarze 452: /*
1.100 schwarze 453: * If the word consists of a bare delimiter,
454: * flag the new node accordingly,
455: * unless doing so was vetoed by the invoking macro.
456: * Always clear the veto, it is only valid for one word.
1.71 schwarze 457: */
458:
1.100 schwarze 459: if (d == DELIM_OPEN)
1.166 schwarze 460: mdoc->last->flags |= NODE_DELIMO;
1.100 schwarze 461: else if (d == DELIM_CLOSE &&
462: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 463: mdoc->last->parent->tok != MDOC_Fd)
1.166 schwarze 464: mdoc->last->flags |= NODE_DELIMC;
1.100 schwarze 465: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 466: }
1.1 kristaps 467:
1.106 schwarze 468: static void
1.145 schwarze 469: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1 kristaps 470: {
1.109 schwarze 471: char *p;
1.42 schwarze 472: int la;
1.1 kristaps 473:
1.106 schwarze 474: if (buf[*pos] == '\0')
475: return;
1.1 kristaps 476:
477: for (;;) {
1.42 schwarze 478: la = *pos;
1.147 schwarze 479: if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
480: ARGS_EOLN)
1.1 kristaps 481: break;
1.80 schwarze 482: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 483:
1.42 schwarze 484: /*
485: * If we encounter end-of-sentence symbols, then trigger
486: * the double-space.
487: *
1.68 schwarze 488: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 489: * the last symbol, such that `. )' will cause the
490: * correct double-spacing. However, (1) groff isn't
491: * smart enough to do this and (2) it would require
492: * knowing which symbols break this behaviour, for
1.68 schwarze 493: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 494: */
1.106 schwarze 495:
1.84 schwarze 496: if (mandoc_eos(p, strlen(p)))
1.166 schwarze 497: mdoc->last->flags |= NODE_EOS;
1.1 kristaps 498: }
499: }
500:
501: /*
1.109 schwarze 502: * Parse one word.
503: * If it is a macro, call it and return 1.
504: * Otherwise, allocate it and return 0.
505: */
506: static int
507: macro_or_word(MACRO_PROT_ARGS, int parsed)
508: {
509: char *p;
1.141 schwarze 510: int ntok;
1.109 schwarze 511:
512: p = buf + ppos;
1.147 schwarze 513: ntok = TOKEN_NONE;
1.113 schwarze 514: if (*p == '"')
1.109 schwarze 515: p++;
1.113 schwarze 516: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 517: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 518:
1.147 schwarze 519: if (ntok == TOKEN_NONE) {
520: dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.109 schwarze 521: mdoc_macros[tok].flags & MDOC_JOIN);
1.158 schwarze 522: return 0;
1.109 schwarze 523: } else {
1.176 schwarze 524: if (tok != TOKEN_NONE &&
525: mdoc_macros[tok].fp == in_line_eoln)
1.109 schwarze 526: rew_elem(mdoc, tok);
527: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.147 schwarze 528: if (tok == TOKEN_NONE)
1.109 schwarze 529: append_delims(mdoc, line, pos, buf);
1.158 schwarze 530: return 1;
1.109 schwarze 531: }
532: }
533:
534: /*
1.88 schwarze 535: * Close out block partial/full explicit.
1.1 kristaps 536: */
1.107 schwarze 537: static void
1.1 kristaps 538: blk_exp_close(MACRO_PROT_ARGS)
539: {
1.141 schwarze 540: struct roff_node *body; /* Our own body. */
541: struct roff_node *endbody; /* Our own end marker. */
542: struct roff_node *itblk; /* An It block starting later. */
543: struct roff_node *later; /* A sub-block starting later. */
544: struct roff_node *n; /* Search back to our block. */
1.144 schwarze 545: struct roff_node *target; /* For find_pending(). */
1.47 schwarze 546:
1.144 schwarze 547: int j, lastarg, maxargs, nl, pending;
1.36 schwarze 548: enum margserr ac;
1.176 schwarze 549: enum roff_tok atok, ntok;
1.1 kristaps 550: char *p;
551:
1.76 schwarze 552: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 553:
1.1 kristaps 554: switch (tok) {
1.88 schwarze 555: case MDOC_Ec:
1.1 kristaps 556: maxargs = 1;
557: break;
1.88 schwarze 558: case MDOC_Ek:
1.82 schwarze 559: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 560: /* FALLTHROUGH */
1.1 kristaps 561: default:
562: maxargs = 0;
563: break;
564: }
565:
1.165 schwarze 566: /* Search backwards for the beginning of our own body. */
567:
568: atok = rew_alt(tok);
569: body = NULL;
570: for (n = mdoc->last; n; n = n->parent) {
1.166 schwarze 571: if (n->flags & NODE_ENDED || n->tok != atok ||
1.165 schwarze 572: n->type != ROFFT_BODY || n->end != ENDBODY_NOT)
573: continue;
574: body = n;
575: break;
576: }
577:
1.47 schwarze 578: /*
579: * Search backwards for beginnings of blocks,
580: * both of our own and of pending sub-blocks.
581: */
1.107 schwarze 582:
1.165 schwarze 583: endbody = itblk = later = NULL;
1.76 schwarze 584: for (n = mdoc->last; n; n = n->parent) {
1.170 schwarze 585: if (n->flags & NODE_ENDED)
1.47 schwarze 586: continue;
587:
1.165 schwarze 588: /*
1.167 schwarze 589: * Mismatching end macros can never break anything
1.165 schwarze 590: * and we only care about the breaking of BLOCKs.
591: */
1.47 schwarze 592:
1.167 schwarze 593: if (body == NULL || n->type != ROFFT_BLOCK)
1.47 schwarze 594: continue;
1.116 schwarze 595:
1.167 schwarze 596: /*
597: * SYNOPSIS name blocks can not be broken themselves,
598: * but they do get broken together with a broken child.
599: */
600:
601: if (n->tok == MDOC_Nm) {
602: if (later != NULL)
603: n->flags |= NODE_BROKEN | NODE_ENDED;
604: continue;
605: }
606:
1.116 schwarze 607: if (n->tok == MDOC_It) {
1.127 schwarze 608: itblk = n;
1.116 schwarze 609: continue;
610: }
611:
1.47 schwarze 612: if (atok == n->tok) {
613:
614: /*
615: * Found the start of our own block.
616: * When there is no pending sub block,
617: * just proceed to closing out.
618: */
1.107 schwarze 619:
1.116 schwarze 620: if (later == NULL ||
1.127 schwarze 621: (tok == MDOC_El && itblk == NULL))
1.47 schwarze 622: break;
623:
1.88 schwarze 624: /*
1.123 schwarze 625: * When there is a pending sub block, postpone
626: * closing out the current block until the
627: * rew_pending() closing out the sub-block.
1.47 schwarze 628: * Mark the place where the formatting - but not
629: * the scope - of the current block ends.
630: */
1.107 schwarze 631:
1.139 schwarze 632: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
633: line, ppos, "%s breaks %s",
1.176 schwarze 634: roff_name[atok], roff_name[later->tok]);
1.139 schwarze 635:
1.122 schwarze 636: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.173 schwarze 637: atok, body);
1.107 schwarze 638:
1.139 schwarze 639: if (tok == MDOC_El)
1.166 schwarze 640: itblk->flags |= NODE_ENDED | NODE_BROKEN;
1.139 schwarze 641:
1.107 schwarze 642: /*
643: * If a block closing macro taking arguments
644: * breaks another block, put the arguments
1.122 schwarze 645: * into the end marker.
1.107 schwarze 646: */
647:
1.122 schwarze 648: if (maxargs)
1.145 schwarze 649: mdoc->next = ROFF_NEXT_CHILD;
1.47 schwarze 650: break;
1.138 schwarze 651: }
652:
1.171 schwarze 653: /*
654: * Explicit blocks close out description lines, but
655: * even those can get broken together with a child.
656: */
1.138 schwarze 657:
658: if (n->tok == MDOC_Nd) {
1.171 schwarze 659: if (later != NULL)
660: n->flags |= NODE_BROKEN | NODE_ENDED;
661: else
662: rew_last(mdoc, n);
1.138 schwarze 663: continue;
1.47 schwarze 664: }
665:
1.139 schwarze 666: /* Breaking an open sub block. */
1.107 schwarze 667:
1.170 schwarze 668: break_intermediate(mdoc->last, body);
1.166 schwarze 669: n->flags |= NODE_BROKEN;
1.139 schwarze 670: if (later == NULL)
1.47 schwarze 671: later = n;
672: }
1.122 schwarze 673:
674: if (body == NULL) {
675: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
1.176 schwarze 676: line, ppos, roff_name[tok]);
1.122 schwarze 677: if (maxargs && endbody == NULL) {
678: /*
679: * Stray .Ec without previous .Eo:
680: * Break the output line, keep the arguments.
681: */
1.178 ! schwarze 682: roff_elem_alloc(mdoc, line, ppos, ROFF_br);
! 683: rew_elem(mdoc, ROFF_br);
1.122 schwarze 684: }
685: } else if (endbody == NULL) {
686: rew_last(mdoc, body);
687: if (maxargs)
688: mdoc_tail_alloc(mdoc, line, ppos, atok);
689: }
1.47 schwarze 690:
1.106 schwarze 691: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
692: if (buf[*pos] != '\0')
1.93 schwarze 693: mandoc_vmsg(MANDOCERR_ARG_SKIP,
694: mdoc->parse, line, ppos,
1.176 schwarze 695: "%s %s", roff_name[tok],
1.93 schwarze 696: buf + *pos);
1.127 schwarze 697: if (endbody == NULL && n != NULL)
1.123 schwarze 698: rew_pending(mdoc, n);
1.107 schwarze 699: return;
1.1 kristaps 700: }
701:
1.122 schwarze 702: if (endbody != NULL)
703: n = endbody;
1.153 schwarze 704:
705: ntok = TOKEN_NONE;
1.104 schwarze 706: for (j = 0; ; j++) {
1.1 kristaps 707: lastarg = *pos;
708:
1.142 schwarze 709: if (j == maxargs && n != NULL)
710: rew_last(mdoc, n);
1.1 kristaps 711:
1.76 schwarze 712: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 713: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 714: break;
715:
1.147 schwarze 716: ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.111 schwarze 717: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 718:
1.147 schwarze 719: if (ntok == TOKEN_NONE) {
1.106 schwarze 720: dword(mdoc, line, lastarg, p, DELIM_MAX,
721: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 722: continue;
723: }
1.1 kristaps 724:
1.142 schwarze 725: if (n != NULL)
726: rew_last(mdoc, n);
1.79 schwarze 727: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 728: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 729: break;
1.1 kristaps 730: }
731:
1.144 schwarze 732: if (n != NULL) {
1.169 schwarze 733: pending = 0;
1.166 schwarze 734: if (ntok != TOKEN_NONE && n->flags & NODE_BROKEN) {
1.144 schwarze 735: target = n;
736: do
737: target = target->parent;
1.166 schwarze 738: while ( ! (target->flags & NODE_ENDED));
1.172 schwarze 739: pending = find_pending(mdoc, ntok, line, ppos, target);
1.169 schwarze 740: }
1.144 schwarze 741: if ( ! pending)
742: rew_pending(mdoc, n);
743: }
1.106 schwarze 744: if (nl)
745: append_delims(mdoc, line, pos, buf);
1.1 kristaps 746: }
747:
1.107 schwarze 748: static void
1.1 kristaps 749: in_line(MACRO_PROT_ARGS)
750: {
1.100 schwarze 751: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.176 schwarze 752: enum roff_tok ntok;
1.36 schwarze 753: enum margserr ac;
1.40 schwarze 754: enum mdelim d;
1.36 schwarze 755: struct mdoc_arg *arg;
756: char *p;
1.1 kristaps 757:
1.76 schwarze 758: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 759:
1.1 kristaps 760: /*
761: * Whether we allow ignored elements (those without content,
762: * usually because of reserved words) to squeak by.
763: */
1.32 schwarze 764:
1.1 kristaps 765: switch (tok) {
1.88 schwarze 766: case MDOC_An:
767: case MDOC_Ar:
768: case MDOC_Fl:
769: case MDOC_Mt:
770: case MDOC_Nm:
771: case MDOC_Pa:
1.1 kristaps 772: nc = 1;
773: break;
774: default:
775: nc = 0;
776: break;
777: }
778:
1.108 schwarze 779: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 780:
1.100 schwarze 781: d = DELIM_NONE;
782: firstarg = 1;
1.98 schwarze 783: mayopen = 1;
1.45 schwarze 784: for (cnt = scope = 0;; ) {
1.1 kristaps 785: la = *pos;
1.76 schwarze 786: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 787:
1.100 schwarze 788: /*
789: * At the end of a macro line,
790: * opening delimiters do not suppress spacing.
791: */
792:
793: if (ac == ARGS_EOLN) {
794: if (d == DELIM_OPEN)
1.166 schwarze 795: mdoc->last->flags &= ~NODE_DELIMO;
1.1 kristaps 796: break;
1.100 schwarze 797: }
798:
799: /*
800: * The rest of the macro line is only punctuation,
801: * to be handled by append_delims().
802: * If there were no other arguments,
803: * do not allow the first one to suppress spacing,
804: * even if it turns out to be a closing one.
805: */
806:
807: if (ac == ARGS_PUNCT) {
1.132 schwarze 808: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.100 schwarze 809: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 810: break;
1.100 schwarze 811: }
1.1 kristaps 812:
1.101 schwarze 813: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.147 schwarze 814: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1 kristaps 815:
1.88 schwarze 816: /*
1.1 kristaps 817: * In this case, we've located a submacro and must
818: * execute it. Close out scope, if open. If no
819: * elements have been generated, either create one (nc)
820: * or raise a warning.
821: */
822:
1.147 schwarze 823: if (ntok != TOKEN_NONE) {
1.105 schwarze 824: if (scope)
825: rew_elem(mdoc, tok);
1.106 schwarze 826: if (nc && ! cnt) {
827: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 828: rew_last(mdoc, mdoc->last);
1.106 schwarze 829: } else if ( ! nc && ! cnt) {
1.1 kristaps 830: mdoc_argv_free(arg);
1.92 schwarze 831: mandoc_msg(MANDOCERR_MACRO_EMPTY,
832: mdoc->parse, line, ppos,
1.176 schwarze 833: roff_name[tok]);
1.1 kristaps 834: }
1.107 schwarze 835: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 836: if (nl)
837: append_delims(mdoc, line, pos, buf);
1.107 schwarze 838: return;
1.88 schwarze 839: }
1.1 kristaps 840:
1.88 schwarze 841: /*
1.1 kristaps 842: * Non-quote-enclosed punctuation. Set up our scope, if
843: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 844: * the word.
1.1 kristaps 845: */
846:
1.106 schwarze 847: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 848:
1.45 schwarze 849: if (DELIM_NONE != d) {
850: /*
851: * If we encounter closing punctuation, no word
1.100 schwarze 852: * has been emitted, no scope is open, and we're
1.45 schwarze 853: * allowed to have an empty element, then start
1.98 schwarze 854: * a new scope.
1.45 schwarze 855: */
1.98 schwarze 856: if ((d == DELIM_CLOSE ||
857: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 858: !cnt && !scope && nc && mayopen) {
1.106 schwarze 859: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 860: scope = 1;
1.98 schwarze 861: cnt++;
1.106 schwarze 862: if (tok == MDOC_Nm)
1.98 schwarze 863: mayopen = 0;
1.45 schwarze 864: }
865: /*
866: * Close out our scope, if one is open, before
867: * any punctuation.
868: */
1.105 schwarze 869: if (scope)
870: rew_elem(mdoc, tok);
1.45 schwarze 871: scope = 0;
1.101 schwarze 872: if (tok == MDOC_Fn)
873: mayopen = 0;
1.98 schwarze 874: } else if (mayopen && !scope) {
1.106 schwarze 875: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 876: scope = 1;
1.98 schwarze 877: cnt++;
1.1 kristaps 878: }
1.66 schwarze 879:
1.106 schwarze 880: dword(mdoc, line, la, p, d,
1.176 schwarze 881: mdoc_macros[tok].flags & MDOC_JOIN);
1.27 schwarze 882:
883: /*
1.100 schwarze 884: * If the first argument is a closing delimiter,
885: * do not suppress spacing before it.
886: */
887:
888: if (firstarg && d == DELIM_CLOSE && !nc)
1.166 schwarze 889: mdoc->last->flags &= ~NODE_DELIMC;
1.100 schwarze 890: firstarg = 0;
891:
892: /*
1.27 schwarze 893: * `Fl' macros have their scope re-opened with each new
894: * word so that the `-' can be added to each one without
895: * having to parse out spaces.
896: */
1.106 schwarze 897: if (scope && tok == MDOC_Fl) {
1.105 schwarze 898: rew_elem(mdoc, tok);
1.45 schwarze 899: scope = 0;
1.27 schwarze 900: }
1.1 kristaps 901: }
902:
1.175 schwarze 903: if (scope && tok != MDOC_Lk) {
1.105 schwarze 904: rew_elem(mdoc, tok);
1.175 schwarze 905: scope = 0;
906: }
1.1 kristaps 907:
908: /*
909: * If no elements have been collected and we're allowed to have
910: * empties (nc), open a scope and close it out. Otherwise,
911: * raise a warning.
912: */
1.32 schwarze 913:
1.106 schwarze 914: if ( ! cnt) {
915: if (nc) {
916: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
917: rew_last(mdoc, mdoc->last);
918: } else {
919: mdoc_argv_free(arg);
920: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.176 schwarze 921: line, ppos, roff_name[tok]);
1.106 schwarze 922: }
1.1 kristaps 923: }
1.106 schwarze 924: if (nl)
925: append_delims(mdoc, line, pos, buf);
1.175 schwarze 926: if (scope)
927: rew_elem(mdoc, tok);
1.1 kristaps 928: }
929:
1.107 schwarze 930: static void
1.1 kristaps 931: blk_full(MACRO_PROT_ARGS)
932: {
1.109 schwarze 933: int la, nl, parsed;
1.1 kristaps 934: struct mdoc_arg *arg;
1.141 schwarze 935: struct roff_node *blk; /* Our own or a broken block. */
936: struct roff_node *head; /* Our own head. */
937: struct roff_node *body; /* Our own body. */
938: struct roff_node *n;
1.37 schwarze 939: enum margserr ac, lac;
1.1 kristaps 940: char *p;
941:
1.76 schwarze 942: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 943:
1.133 schwarze 944: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
945: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.176 schwarze 946: line, ppos, roff_name[tok]);
1.133 schwarze 947: return;
948: }
949:
1.127 schwarze 950: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
951:
952: /* Here, tok is one of Sh Ss Nm Nd It. */
953:
954: blk = NULL;
955: for (n = mdoc->last; n != NULL; n = n->parent) {
1.166 schwarze 956: if (n->flags & NODE_ENDED) {
957: if ( ! (n->flags & NODE_VALID))
958: n->flags |= NODE_BROKEN;
1.139 schwarze 959: continue;
960: }
1.140 schwarze 961: if (n->type != ROFFT_BLOCK)
1.127 schwarze 962: continue;
1.139 schwarze 963:
1.127 schwarze 964: if (tok == MDOC_It && n->tok == MDOC_Bl) {
965: if (blk != NULL) {
966: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
967: mdoc->parse, line, ppos,
968: "It breaks %s",
1.176 schwarze 969: roff_name[blk->tok]);
1.127 schwarze 970: rew_pending(mdoc, blk);
971: }
972: break;
973: }
974:
975: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
976: switch (tok) {
977: case MDOC_Sh:
978: case MDOC_Ss:
979: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
980: mdoc->parse, line, ppos,
1.176 schwarze 981: "%s breaks %s", roff_name[tok],
982: roff_name[n->tok]);
1.127 schwarze 983: rew_pending(mdoc, n);
1.136 schwarze 984: n = mdoc->last;
1.127 schwarze 985: continue;
986: case MDOC_It:
987: /* Delay in case it's astray. */
988: blk = n;
989: continue;
990: default:
991: break;
992: }
993: break;
994: }
995:
996: /* Here, n is one of Sh Ss Nm Nd It. */
1.95 schwarze 997:
1.127 schwarze 998: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
999: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
1000: (tok != MDOC_It && n->tok == MDOC_It)))))
1.95 schwarze 1001: break;
1.127 schwarze 1002:
1003: /* Item breaking an explicit block. */
1004:
1005: if (blk != NULL) {
1006: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
1007: mdoc->parse, line, ppos,
1.176 schwarze 1008: "It breaks %s", roff_name[blk->tok]);
1.127 schwarze 1009: rew_pending(mdoc, blk);
1.128 schwarze 1010: blk = NULL;
1.127 schwarze 1011: }
1012:
1013: /* Close out prior implicit scopes. */
1014:
1.167 schwarze 1015: rew_pending(mdoc, n);
1.127 schwarze 1016: }
1017:
1018: /* Skip items outside lists. */
1019:
1020: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.95 schwarze 1021: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1022: line, ppos, "It %s", buf + *pos);
1.178 ! schwarze 1023: roff_elem_alloc(mdoc, line, ppos, ROFF_br);
! 1024: rew_elem(mdoc, ROFF_br);
1.107 schwarze 1025: return;
1.95 schwarze 1026: }
1.1 kristaps 1027: }
1028:
1.32 schwarze 1029: /*
1.68 schwarze 1030: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 1031: * macro openings. Implicit ones first close out prior scope
1032: * (seen above). Delay opening the head until necessary to
1033: * allow leading punctuation to print. Special consideration
1034: * for `It -column', which has phrase-part syntax instead of
1035: * regular child nodes.
1036: */
1037:
1.108 schwarze 1038: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.121 schwarze 1039: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1040: head = body = NULL;
1.1 kristaps 1041:
1.32 schwarze 1042: /*
1.73 schwarze 1043: * Exception: Heads of `It' macros in `-diag' lists are not
1044: * parsed, even though `It' macros in general are parsed.
1045: */
1.107 schwarze 1046:
1.109 schwarze 1047: parsed = tok != MDOC_It ||
1048: mdoc->last->parent->tok != MDOC_Bl ||
1049: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1050:
1051: /*
1.32 schwarze 1052: * The `Nd' macro has all arguments in its body: it's a hybrid
1053: * of block partial-explicit and full-implicit. Stupid.
1054: */
1.12 schwarze 1055:
1.106 schwarze 1056: if (tok == MDOC_Nd) {
1.146 schwarze 1057: head = roff_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 1058: rew_last(mdoc, head);
1.146 schwarze 1059: body = roff_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1060: }
1061:
1.106 schwarze 1062: if (tok == MDOC_Bk)
1.80 schwarze 1063: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1064:
1.161 schwarze 1065: ac = ARGS_EOLN;
1.106 schwarze 1066: for (;;) {
1.161 schwarze 1067:
1068: /*
1069: * If we are right after a tab character,
1070: * do not parse the first word for macros.
1071: */
1072:
1073: if (mdoc->flags & MDOC_PHRASEQN) {
1074: mdoc->flags &= ~MDOC_PHRASEQN;
1075: mdoc->flags |= MDOC_PHRASEQF;
1076: }
1077:
1.32 schwarze 1078: la = *pos;
1.106 schwarze 1079: lac = ac;
1.76 schwarze 1080: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1081: if (ac == ARGS_EOLN) {
1.161 schwarze 1082: if (lac != ARGS_PHRASE ||
1083: ! (mdoc->flags & MDOC_PHRASEQF))
1.46 schwarze 1084: break;
1.161 schwarze 1085:
1.46 schwarze 1086: /*
1.161 schwarze 1087: * This line ends in a tab; start the next
1088: * column now, with a leading blank.
1.46 schwarze 1089: */
1.161 schwarze 1090:
1.123 schwarze 1091: if (body != NULL)
1092: rew_last(mdoc, body);
1.146 schwarze 1093: body = roff_body_alloc(mdoc, line, ppos, tok);
1.161 schwarze 1094: roff_word_alloc(mdoc, line, ppos, "\\&");
1.1 kristaps 1095: break;
1.41 schwarze 1096: }
1.161 schwarze 1097:
1.130 schwarze 1098: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1099: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1100: mdoc->parse, line, la, "%s ... %s",
1.176 schwarze 1101: roff_name[tok], buf + la);
1.130 schwarze 1102: break;
1103: }
1.129 schwarze 1104: if (tok == MDOC_Rs) {
1105: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1106: line, la, "Rs %s", buf + la);
1107: break;
1108: }
1109: if (ac == ARGS_PUNCT)
1110: break;
1.41 schwarze 1111:
1.88 schwarze 1112: /*
1.46 schwarze 1113: * Emit leading punctuation (i.e., punctuation before
1.140 schwarze 1114: * the ROFFT_HEAD) for non-phrase types.
1.46 schwarze 1115: */
1.32 schwarze 1116:
1.106 schwarze 1117: if (head == NULL &&
1118: ac != ARGS_PHRASE &&
1119: ac != ARGS_QWORD &&
1120: mdoc_isdelim(p) == DELIM_OPEN) {
1121: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1122: continue;
1123: }
1124:
1.46 schwarze 1125: /* Open a head if one hasn't been opened. */
1.32 schwarze 1126:
1.106 schwarze 1127: if (head == NULL)
1.146 schwarze 1128: head = roff_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1129:
1.161 schwarze 1130: if (ac == ARGS_PHRASE) {
1.107 schwarze 1131:
1.46 schwarze 1132: /*
1133: * If we haven't opened a body yet, rewind the
1134: * head; if we have, rewind that instead.
1135: */
1136:
1.123 schwarze 1137: rew_last(mdoc, body == NULL ? head : body);
1.146 schwarze 1138: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1139:
1.161 schwarze 1140: /* Process to the tab or to the end of the line. */
1.46 schwarze 1141:
1.161 schwarze 1142: mdoc->flags |= MDOC_PHRASE;
1.147 schwarze 1143: parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.161 schwarze 1144: mdoc->flags &= ~MDOC_PHRASE;
1.160 schwarze 1145:
1146: /* There may have been `Ta' macros. */
1147:
1148: while (body->next != NULL)
1149: body = body->next;
1.1 kristaps 1150: continue;
1151: }
1152:
1.109 schwarze 1153: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1154: break;
1.32 schwarze 1155: }
1.1 kristaps 1156:
1.166 schwarze 1157: if (blk->flags & NODE_VALID)
1.121 schwarze 1158: return;
1.106 schwarze 1159: if (head == NULL)
1.146 schwarze 1160: head = roff_head_alloc(mdoc, line, ppos, tok);
1.130 schwarze 1161: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.106 schwarze 1162: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1163: if (body != NULL)
1.46 schwarze 1164: goto out;
1.143 schwarze 1165: if (find_pending(mdoc, tok, line, ppos, head))
1.139 schwarze 1166: return;
1.54 schwarze 1167:
1.32 schwarze 1168: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1169:
1.123 schwarze 1170: rew_last(mdoc, head);
1.146 schwarze 1171: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1172: out:
1.106 schwarze 1173: if (mdoc->flags & MDOC_FREECOL) {
1.123 schwarze 1174: rew_last(mdoc, body);
1175: rew_last(mdoc, blk);
1.106 schwarze 1176: mdoc->flags &= ~MDOC_FREECOL;
1177: }
1.1 kristaps 1178: }
1179:
1.107 schwarze 1180: static void
1.1 kristaps 1181: blk_part_imp(MACRO_PROT_ARGS)
1182: {
1.43 schwarze 1183: int la, nl;
1.36 schwarze 1184: enum margserr ac;
1.1 kristaps 1185: char *p;
1.141 schwarze 1186: struct roff_node *blk; /* saved block context */
1187: struct roff_node *body; /* saved body context */
1188: struct roff_node *n;
1.1 kristaps 1189:
1.76 schwarze 1190: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1191:
1.32 schwarze 1192: /*
1193: * A macro that spans to the end of the line. This is generally
1194: * (but not necessarily) called as the first macro. The block
1195: * has a head as the immediate child, which is always empty,
1196: * followed by zero or more opening punctuation nodes, then the
1197: * body (which may be empty, depending on the macro), then zero
1198: * or more closing punctuation nodes.
1199: */
1.22 schwarze 1200:
1.106 schwarze 1201: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.146 schwarze 1202: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1203:
1.32 schwarze 1204: /*
1205: * Open the body scope "on-demand", that is, after we've
1206: * processed all our the leading delimiters (open parenthesis,
1207: * etc.).
1208: */
1.1 kristaps 1209:
1.32 schwarze 1210: for (body = NULL; ; ) {
1.22 schwarze 1211: la = *pos;
1.76 schwarze 1212: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1213: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1214: break;
1215:
1.106 schwarze 1216: if (body == NULL && ac != ARGS_QWORD &&
1217: mdoc_isdelim(p) == DELIM_OPEN) {
1218: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1219: continue;
1.80 schwarze 1220: }
1.1 kristaps 1221:
1.106 schwarze 1222: if (body == NULL)
1.146 schwarze 1223: body = roff_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1224:
1.109 schwarze 1225: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1226: break;
1.32 schwarze 1227: }
1.106 schwarze 1228: if (body == NULL)
1.146 schwarze 1229: body = roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1230:
1.143 schwarze 1231: if (find_pending(mdoc, tok, line, ppos, body))
1.139 schwarze 1232: return;
1233:
1.120 schwarze 1234: rew_last(mdoc, body);
1.106 schwarze 1235: if (nl)
1236: append_delims(mdoc, line, pos, buf);
1.122 schwarze 1237: rew_pending(mdoc, blk);
1.74 schwarze 1238:
1239: /* Move trailing .Ns out of scope. */
1240:
1241: for (n = body->child; n && n->next; n = n->next)
1242: /* Do nothing. */ ;
1.106 schwarze 1243: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1244: mdoc_node_relink(mdoc, n);
1.1 kristaps 1245: }
1246:
1.107 schwarze 1247: static void
1.1 kristaps 1248: blk_part_exp(MACRO_PROT_ARGS)
1249: {
1.37 schwarze 1250: int la, nl;
1.36 schwarze 1251: enum margserr ac;
1.141 schwarze 1252: struct roff_node *head; /* keep track of head */
1.1 kristaps 1253: char *p;
1254:
1.76 schwarze 1255: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1256:
1.32 schwarze 1257: /*
1258: * The opening of an explicit macro having zero or more leading
1259: * punctuation nodes; a head with optional single element (the
1260: * case of `Eo'); and a body that may be empty.
1261: */
1.22 schwarze 1262:
1.149 schwarze 1263: roff_block_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1264: head = NULL;
1265: for (;;) {
1.22 schwarze 1266: la = *pos;
1.76 schwarze 1267: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1268: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1269: break;
1270:
1.32 schwarze 1271: /* Flush out leading punctuation. */
1272:
1.106 schwarze 1273: if (head == NULL && ac != ARGS_QWORD &&
1274: mdoc_isdelim(p) == DELIM_OPEN) {
1275: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1276: continue;
1.80 schwarze 1277: }
1.32 schwarze 1278:
1.106 schwarze 1279: if (head == NULL) {
1.146 schwarze 1280: head = roff_head_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1281: if (tok == MDOC_Eo) /* Not parsed. */
1.106 schwarze 1282: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.119 schwarze 1283: rew_last(mdoc, head);
1.146 schwarze 1284: roff_body_alloc(mdoc, line, ppos, tok);
1.106 schwarze 1285: if (tok == MDOC_Eo)
1.32 schwarze 1286: continue;
1287: }
1288:
1.109 schwarze 1289: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1290: break;
1.1 kristaps 1291: }
1292:
1.32 schwarze 1293: /* Clean-up to leave in a consistent state. */
1294:
1.119 schwarze 1295: if (head == NULL) {
1.146 schwarze 1296: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1297: roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1298: }
1.106 schwarze 1299: if (nl)
1300: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1301: }
1302:
1.107 schwarze 1303: static void
1.1 kristaps 1304: in_line_argn(MACRO_PROT_ARGS)
1305: {
1.36 schwarze 1306: struct mdoc_arg *arg;
1307: char *p;
1.137 schwarze 1308: enum margserr ac;
1.176 schwarze 1309: enum roff_tok ntok;
1.137 schwarze 1310: int state; /* arg#; -1: not yet open; -2: closed */
1311: int la, maxargs, nl;
1.1 kristaps 1312:
1.112 schwarze 1313: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1314:
1.32 schwarze 1315: /*
1316: * A line macro that has a fixed number of arguments (maxargs).
1317: * Only open the scope once the first non-leading-punctuation is
1318: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1319: * keep it open until the maximum number of arguments are
1320: * exhausted.
1321: */
1.1 kristaps 1322:
1323: switch (tok) {
1.88 schwarze 1324: case MDOC_Ap:
1325: case MDOC_Ns:
1326: case MDOC_Ux:
1.1 kristaps 1327: maxargs = 0;
1328: break;
1.88 schwarze 1329: case MDOC_Bx:
1.89 schwarze 1330: case MDOC_Es:
1.88 schwarze 1331: case MDOC_Xr:
1.28 schwarze 1332: maxargs = 2;
1333: break;
1.1 kristaps 1334: default:
1335: maxargs = 1;
1336: break;
1337: }
1338:
1.108 schwarze 1339: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1340:
1.137 schwarze 1341: state = -1;
1.112 schwarze 1342: p = NULL;
1343: for (;;) {
1.22 schwarze 1344: la = *pos;
1.76 schwarze 1345: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.137 schwarze 1346:
1347: if (ac == ARGS_WORD && state == -1 &&
1348: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1349: mdoc_isdelim(p) == DELIM_OPEN) {
1350: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1351: continue;
1352: }
1353:
1354: if (state == -1 && tok != MDOC_In &&
1355: tok != MDOC_St && tok != MDOC_Xr) {
1356: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1357: state = 0;
1358: }
1359:
1.112 schwarze 1360: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.137 schwarze 1361: if (abs(state) < 2 && tok == MDOC_Pf)
1.112 schwarze 1362: mandoc_vmsg(MANDOCERR_PF_SKIP,
1363: mdoc->parse, line, ppos, "Pf %s",
1364: p == NULL ? "at eol" : p);
1.1 kristaps 1365: break;
1.112 schwarze 1366: }
1.1 kristaps 1367:
1.137 schwarze 1368: if (state == maxargs) {
1.105 schwarze 1369: rew_elem(mdoc, tok);
1.137 schwarze 1370: state = -2;
1.32 schwarze 1371: }
1372:
1.137 schwarze 1373: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.147 schwarze 1374: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1375:
1.147 schwarze 1376: if (ntok != TOKEN_NONE) {
1.137 schwarze 1377: if (state >= 0) {
1.105 schwarze 1378: rew_elem(mdoc, tok);
1.137 schwarze 1379: state = -2;
1380: }
1.107 schwarze 1381: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1382: break;
1383: }
1384:
1.137 schwarze 1385: if (ac == ARGS_QWORD ||
1386: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1387: mdoc_isdelim(p) == DELIM_NONE) {
1388: if (state == -1) {
1389: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1390: state = 1;
1391: } else if (state >= 0)
1392: state++;
1393: } else if (state >= 0) {
1.105 schwarze 1394: rew_elem(mdoc, tok);
1.137 schwarze 1395: state = -2;
1.28 schwarze 1396: }
1397:
1.106 schwarze 1398: dword(mdoc, line, la, p, DELIM_MAX,
1.176 schwarze 1399: mdoc_macros[tok].flags & MDOC_JOIN);
1.1 kristaps 1400: }
1401:
1.137 schwarze 1402: if (state == -1) {
1403: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.176 schwarze 1404: line, ppos, roff_name[tok]);
1.137 schwarze 1405: return;
1.112 schwarze 1406: }
1.137 schwarze 1407:
1408: if (state == 0 && tok == MDOC_Pf)
1409: append_delims(mdoc, line, pos, buf);
1410: if (state >= 0)
1.105 schwarze 1411: rew_elem(mdoc, tok);
1.106 schwarze 1412: if (nl)
1413: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1414: }
1415:
1.107 schwarze 1416: static void
1.1 kristaps 1417: in_line_eoln(MACRO_PROT_ARGS)
1418: {
1.141 schwarze 1419: struct roff_node *n;
1.126 schwarze 1420: struct mdoc_arg *arg;
1.1 kristaps 1421:
1.126 schwarze 1422: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1423: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1424: n = mdoc->last;
1.145 schwarze 1425: if (mdoc->next == ROFF_NEXT_SIBLING)
1.126 schwarze 1426: n = n->parent;
1427: if (n->tok == MDOC_Nm)
1.154 schwarze 1428: rew_last(mdoc, n->parent);
1.134 schwarze 1429: }
1430:
1.135 schwarze 1431: if (buf[*pos] == '\0' &&
1.176 schwarze 1432: (tok == MDOC_Fd || *roff_name[tok] == '%')) {
1.134 schwarze 1433: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.176 schwarze 1434: line, ppos, roff_name[tok]);
1.134 schwarze 1435: return;
1.126 schwarze 1436: }
1.53 schwarze 1437:
1.108 schwarze 1438: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1439: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1440: if (parse_rest(mdoc, tok, line, pos, buf))
1441: return;
1442: rew_elem(mdoc, tok);
1443: }
1444:
1445: /*
1446: * The simplest argument parser available: Parse the remaining
1447: * words until the end of the phrase or line and return 0
1448: * or until the next macro, call that macro, and return 1.
1449: */
1450: static int
1.176 schwarze 1451: parse_rest(struct roff_man *mdoc, enum roff_tok tok,
1452: int line, int *pos, char *buf)
1.110 schwarze 1453: {
1454: int la;
1.1 kristaps 1455:
1456: for (;;) {
1457: la = *pos;
1.109 schwarze 1458: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.158 schwarze 1459: return 0;
1.109 schwarze 1460: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.158 schwarze 1461: return 1;
1.1 kristaps 1462: }
1.28 schwarze 1463: }
1464:
1.107 schwarze 1465: static void
1.28 schwarze 1466: ctx_synopsis(MACRO_PROT_ARGS)
1467: {
1.37 schwarze 1468:
1.107 schwarze 1469: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1470: in_line(mdoc, tok, line, ppos, pos, buf);
1471: else if (tok == MDOC_Nm)
1472: blk_full(mdoc, tok, line, ppos, pos, buf);
1473: else {
1474: assert(tok == MDOC_Vt);
1475: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1476: }
1.1 kristaps 1477: }
1478:
1.17 schwarze 1479: /*
1480: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1481: * They're unusual because they're basically free-form text until a
1482: * macro is encountered.
1483: */
1.107 schwarze 1484: static void
1.46 schwarze 1485: phrase_ta(MACRO_PROT_ARGS)
1486: {
1.141 schwarze 1487: struct roff_node *body, *n;
1.46 schwarze 1488:
1.78 schwarze 1489: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1490:
1.123 schwarze 1491: body = NULL;
1492: for (n = mdoc->last; n != NULL; n = n->parent) {
1.166 schwarze 1493: if (n->flags & NODE_ENDED)
1.123 schwarze 1494: continue;
1.140 schwarze 1495: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.123 schwarze 1496: body = n;
1.164 schwarze 1497: if (n->tok == MDOC_Bl && n->end == ENDBODY_NOT)
1.123 schwarze 1498: break;
1499: }
1500:
1.107 schwarze 1501: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1502: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1503: line, ppos, "Ta");
1.107 schwarze 1504: return;
1.78 schwarze 1505: }
1.46 schwarze 1506:
1.78 schwarze 1507: /* Advance to the next column. */
1.106 schwarze 1508:
1.123 schwarze 1509: rew_last(mdoc, body);
1.146 schwarze 1510: roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.147 schwarze 1511: parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.46 schwarze 1512: }
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