Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.180
1.180 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.179 2017/05/05 13:17:04 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 */
1.25 schwarze 198: { in_line_eoln, 0 }, /* %U */
1.80 schwarze 199: { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.1 kristaps 200: };
1.176 schwarze 201: const struct mdoc_macro *const mdoc_macros = __mdoc_macros - MDOC_Dd;
1.1 kristaps 202:
203:
204: /*
205: * This is called at the end of parsing. It must traverse up the tree,
206: * closing out open [implicit] scopes. Obviously, open explicit scopes
207: * are errors.
208: */
1.107 schwarze 209: void
1.151 schwarze 210: mdoc_endparse(struct roff_man *mdoc)
1.1 kristaps 211: {
1.141 schwarze 212: struct roff_node *n;
1.1 kristaps 213:
214: /* Scan for open explicit scopes. */
215:
1.166 schwarze 216: n = mdoc->last->flags & NODE_VALID ?
1.88 schwarze 217: mdoc->last->parent : mdoc->last;
1.1 kristaps 218:
1.56 schwarze 219: for ( ; n; n = n->parent)
1.140 schwarze 220: if (n->type == ROFFT_BLOCK &&
1.107 schwarze 221: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.94 schwarze 222: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
1.176 schwarze 223: n->line, n->pos, roff_name[n->tok]);
1.1 kristaps 224:
1.22 schwarze 225: /* Rewind to the first. */
226:
1.105 schwarze 227: rew_last(mdoc, mdoc->first);
1.162 schwarze 228: mdoc_state_reset(mdoc);
1.1 kristaps 229: }
230:
1.22 schwarze 231: /*
1.109 schwarze 232: * Look up the macro at *p called by "from",
1.147 schwarze 233: * or as a line macro if from == TOKEN_NONE.
1.22 schwarze 234: */
1.141 schwarze 235: static int
1.145 schwarze 236: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.21 schwarze 237: {
1.176 schwarze 238: enum roff_tok res;
1.1 kristaps 239:
1.161 schwarze 240: if (mdoc->flags & MDOC_PHRASEQF) {
241: mdoc->flags &= ~MDOC_PHRASEQF;
242: return TOKEN_NONE;
243: }
1.147 schwarze 244: if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
1.177 schwarze 245: res = roffhash_find(mdoc->mdocmac, p, 0);
1.147 schwarze 246: if (res != TOKEN_NONE) {
1.111 schwarze 247: if (mdoc_macros[res].flags & MDOC_CALLABLE)
1.158 schwarze 248: return res;
1.180 ! schwarze 249: mandoc_msg(MANDOCERR_MACRO_CALL,
! 250: mdoc->parse, line, ppos, p);
1.111 schwarze 251: }
1.109 schwarze 252: }
1.158 schwarze 253: return TOKEN_NONE;
1.1 kristaps 254: }
255:
1.122 schwarze 256: /*
257: * Rewind up to and including a specific node.
258: */
1.105 schwarze 259: static void
1.145 schwarze 260: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1 kristaps 261: {
262:
1.166 schwarze 263: if (to->flags & NODE_VALID)
1.142 schwarze 264: return;
265:
1.1 kristaps 266: while (mdoc->last != to) {
1.162 schwarze 267: mdoc_state(mdoc, mdoc->last);
1.166 schwarze 268: mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.162 schwarze 269: mdoc->last = mdoc->last->parent;
1.1 kristaps 270: }
1.162 schwarze 271: mdoc_state(mdoc, mdoc->last);
1.166 schwarze 272: mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.156 schwarze 273: mdoc->next = ROFF_NEXT_SIBLING;
1.1 kristaps 274: }
275:
1.22 schwarze 276: /*
1.122 schwarze 277: * Rewind up to a specific block, including all blocks that broke it.
278: */
279: static void
1.145 schwarze 280: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.122 schwarze 281: {
282:
1.139 schwarze 283: for (;;) {
284: rew_last(mdoc, n);
285:
1.150 schwarze 286: if (mdoc->last == n) {
287: switch (n->type) {
288: case ROFFT_HEAD:
289: roff_body_alloc(mdoc, n->line, n->pos,
290: n->tok);
1.163 schwarze 291: break;
1.150 schwarze 292: case ROFFT_BLOCK:
293: break;
294: default:
295: return;
296: }
1.166 schwarze 297: if ( ! (n->flags & NODE_BROKEN))
1.150 schwarze 298: return;
299: } else
300: n = mdoc->last;
1.122 schwarze 301:
1.139 schwarze 302: for (;;) {
303: if ((n = n->parent) == NULL)
304: return;
305:
1.140 schwarze 306: if (n->type == ROFFT_BLOCK ||
307: n->type == ROFFT_HEAD) {
1.166 schwarze 308: if (n->flags & NODE_ENDED)
1.139 schwarze 309: break;
310: else
311: return;
312: }
313: }
1.122 schwarze 314: }
315: }
316:
317: /*
1.48 schwarze 318: * For a block closing macro, return the corresponding opening one.
319: * Otherwise, return the macro itself.
1.22 schwarze 320: */
1.176 schwarze 321: static enum roff_tok
322: rew_alt(enum roff_tok tok)
1.1 kristaps 323: {
324: switch (tok) {
1.88 schwarze 325: case MDOC_Ac:
1.158 schwarze 326: return MDOC_Ao;
1.88 schwarze 327: case MDOC_Bc:
1.158 schwarze 328: return MDOC_Bo;
1.88 schwarze 329: case MDOC_Brc:
1.158 schwarze 330: return MDOC_Bro;
1.88 schwarze 331: case MDOC_Dc:
1.158 schwarze 332: return MDOC_Do;
1.88 schwarze 333: case MDOC_Ec:
1.158 schwarze 334: return MDOC_Eo;
1.88 schwarze 335: case MDOC_Ed:
1.158 schwarze 336: return MDOC_Bd;
1.88 schwarze 337: case MDOC_Ef:
1.158 schwarze 338: return MDOC_Bf;
1.88 schwarze 339: case MDOC_Ek:
1.158 schwarze 340: return MDOC_Bk;
1.88 schwarze 341: case MDOC_El:
1.158 schwarze 342: return MDOC_Bl;
1.88 schwarze 343: case MDOC_Fc:
1.158 schwarze 344: return MDOC_Fo;
1.88 schwarze 345: case MDOC_Oc:
1.158 schwarze 346: return MDOC_Oo;
1.88 schwarze 347: case MDOC_Pc:
1.158 schwarze 348: return MDOC_Po;
1.88 schwarze 349: case MDOC_Qc:
1.158 schwarze 350: return MDOC_Qo;
1.88 schwarze 351: case MDOC_Re:
1.158 schwarze 352: return MDOC_Rs;
1.88 schwarze 353: case MDOC_Sc:
1.158 schwarze 354: return MDOC_So;
1.88 schwarze 355: case MDOC_Xc:
1.158 schwarze 356: return MDOC_Xo;
1.1 kristaps 357: default:
1.158 schwarze 358: return tok;
1.1 kristaps 359: }
360: }
361:
1.105 schwarze 362: static void
1.176 schwarze 363: rew_elem(struct roff_man *mdoc, enum roff_tok tok)
1.1 kristaps 364: {
1.141 schwarze 365: struct roff_node *n;
1.1 kristaps 366:
367: n = mdoc->last;
1.140 schwarze 368: if (n->type != ROFFT_ELEM)
1.1 kristaps 369: n = n->parent;
1.140 schwarze 370: assert(n->type == ROFFT_ELEM);
1.1 kristaps 371: assert(tok == n->tok);
1.105 schwarze 372: rew_last(mdoc, n);
1.1 kristaps 373: }
374:
1.170 schwarze 375: static void
376: break_intermediate(struct roff_node *n, struct roff_node *breaker)
377: {
1.174 schwarze 378: if (n != breaker &&
379: n->type != ROFFT_BLOCK && n->type != ROFFT_HEAD &&
380: (n->type != ROFFT_BODY || n->end != ENDBODY_NOT))
381: n = n->parent;
1.170 schwarze 382: while (n != breaker) {
383: if ( ! (n->flags & NODE_VALID))
384: n->flags |= NODE_BROKEN;
385: n = n->parent;
386: }
387: }
388:
1.47 schwarze 389: /*
1.143 schwarze 390: * If there is an open sub-block of the target requiring
391: * explicit close-out, postpone closing out the target until
392: * the rew_pending() call closing out the sub-block.
393: */
394: static int
1.176 schwarze 395: find_pending(struct roff_man *mdoc, enum roff_tok tok, int line, int ppos,
1.143 schwarze 396: struct roff_node *target)
397: {
398: struct roff_node *n;
399: int irc;
400:
1.172 schwarze 401: if (target->flags & NODE_VALID)
402: return 0;
403:
1.143 schwarze 404: irc = 0;
405: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
1.170 schwarze 406: if (n->flags & NODE_ENDED)
1.143 schwarze 407: continue;
408: if (n->type == ROFFT_BLOCK &&
409: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
410: irc = 1;
1.174 schwarze 411: break_intermediate(mdoc->last, target);
1.143 schwarze 412: if (target->type == ROFFT_HEAD)
1.169 schwarze 413: target->flags |= NODE_ENDED;
1.166 schwarze 414: else if ( ! (target->flags & NODE_ENDED)) {
1.143 schwarze 415: mandoc_vmsg(MANDOCERR_BLK_NEST,
416: mdoc->parse, line, ppos,
1.176 schwarze 417: "%s breaks %s", roff_name[tok],
418: roff_name[n->tok]);
1.143 schwarze 419: mdoc_endbody_alloc(mdoc, line, ppos,
1.173 schwarze 420: tok, target);
1.143 schwarze 421: }
422: }
423: }
1.158 schwarze 424: return irc;
1.143 schwarze 425: }
426:
427: /*
1.66 schwarze 428: * Allocate a word and check whether it's punctuation or not.
429: * Punctuation consists of those tokens found in mdoc_isdelim().
430: */
1.106 schwarze 431: static void
1.145 schwarze 432: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.80 schwarze 433: enum mdelim d, int may_append)
1.66 schwarze 434: {
1.88 schwarze 435:
1.106 schwarze 436: if (d == DELIM_MAX)
1.66 schwarze 437: d = mdoc_isdelim(p);
438:
1.80 schwarze 439: if (may_append &&
1.106 schwarze 440: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.140 schwarze 441: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.106 schwarze 442: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.148 schwarze 443: roff_word_append(mdoc, p);
1.106 schwarze 444: return;
1.80 schwarze 445: }
446:
1.148 schwarze 447: roff_word_alloc(mdoc, line, col, p);
1.66 schwarze 448:
1.71 schwarze 449: /*
1.100 schwarze 450: * If the word consists of a bare delimiter,
451: * flag the new node accordingly,
452: * unless doing so was vetoed by the invoking macro.
453: * Always clear the veto, it is only valid for one word.
1.71 schwarze 454: */
455:
1.100 schwarze 456: if (d == DELIM_OPEN)
1.166 schwarze 457: mdoc->last->flags |= NODE_DELIMO;
1.100 schwarze 458: else if (d == DELIM_CLOSE &&
459: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 460: mdoc->last->parent->tok != MDOC_Fd)
1.166 schwarze 461: mdoc->last->flags |= NODE_DELIMC;
1.100 schwarze 462: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 463: }
1.1 kristaps 464:
1.106 schwarze 465: static void
1.145 schwarze 466: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1 kristaps 467: {
1.109 schwarze 468: char *p;
1.42 schwarze 469: int la;
1.1 kristaps 470:
1.106 schwarze 471: if (buf[*pos] == '\0')
472: return;
1.1 kristaps 473:
474: for (;;) {
1.42 schwarze 475: la = *pos;
1.147 schwarze 476: if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
477: ARGS_EOLN)
1.1 kristaps 478: break;
1.80 schwarze 479: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 480:
1.42 schwarze 481: /*
482: * If we encounter end-of-sentence symbols, then trigger
483: * the double-space.
484: *
1.68 schwarze 485: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 486: * the last symbol, such that `. )' will cause the
487: * correct double-spacing. However, (1) groff isn't
488: * smart enough to do this and (2) it would require
489: * knowing which symbols break this behaviour, for
1.68 schwarze 490: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 491: */
1.106 schwarze 492:
1.84 schwarze 493: if (mandoc_eos(p, strlen(p)))
1.166 schwarze 494: mdoc->last->flags |= NODE_EOS;
1.1 kristaps 495: }
496: }
497:
498: /*
1.109 schwarze 499: * Parse one word.
500: * If it is a macro, call it and return 1.
501: * Otherwise, allocate it and return 0.
502: */
503: static int
504: macro_or_word(MACRO_PROT_ARGS, int parsed)
505: {
506: char *p;
1.141 schwarze 507: int ntok;
1.109 schwarze 508:
509: p = buf + ppos;
1.147 schwarze 510: ntok = TOKEN_NONE;
1.113 schwarze 511: if (*p == '"')
1.109 schwarze 512: p++;
1.113 schwarze 513: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 514: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 515:
1.147 schwarze 516: if (ntok == TOKEN_NONE) {
517: dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.109 schwarze 518: mdoc_macros[tok].flags & MDOC_JOIN);
1.158 schwarze 519: return 0;
1.109 schwarze 520: } else {
1.176 schwarze 521: if (tok != TOKEN_NONE &&
522: mdoc_macros[tok].fp == in_line_eoln)
1.109 schwarze 523: rew_elem(mdoc, tok);
524: mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.147 schwarze 525: if (tok == TOKEN_NONE)
1.109 schwarze 526: append_delims(mdoc, line, pos, buf);
1.158 schwarze 527: return 1;
1.109 schwarze 528: }
529: }
530:
531: /*
1.88 schwarze 532: * Close out block partial/full explicit.
1.1 kristaps 533: */
1.107 schwarze 534: static void
1.1 kristaps 535: blk_exp_close(MACRO_PROT_ARGS)
536: {
1.141 schwarze 537: struct roff_node *body; /* Our own body. */
538: struct roff_node *endbody; /* Our own end marker. */
539: struct roff_node *itblk; /* An It block starting later. */
540: struct roff_node *later; /* A sub-block starting later. */
541: struct roff_node *n; /* Search back to our block. */
1.144 schwarze 542: struct roff_node *target; /* For find_pending(). */
1.47 schwarze 543:
1.144 schwarze 544: int j, lastarg, maxargs, nl, pending;
1.36 schwarze 545: enum margserr ac;
1.176 schwarze 546: enum roff_tok atok, ntok;
1.1 kristaps 547: char *p;
548:
1.76 schwarze 549: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 550:
1.1 kristaps 551: switch (tok) {
1.88 schwarze 552: case MDOC_Ec:
1.1 kristaps 553: maxargs = 1;
554: break;
1.88 schwarze 555: case MDOC_Ek:
1.82 schwarze 556: mdoc->flags &= ~MDOC_KEEP;
1.107 schwarze 557: /* FALLTHROUGH */
1.1 kristaps 558: default:
559: maxargs = 0;
560: break;
561: }
562:
1.165 schwarze 563: /* Search backwards for the beginning of our own body. */
564:
565: atok = rew_alt(tok);
566: body = NULL;
567: for (n = mdoc->last; n; n = n->parent) {
1.166 schwarze 568: if (n->flags & NODE_ENDED || n->tok != atok ||
1.165 schwarze 569: n->type != ROFFT_BODY || n->end != ENDBODY_NOT)
570: continue;
571: body = n;
572: break;
573: }
574:
1.47 schwarze 575: /*
576: * Search backwards for beginnings of blocks,
577: * both of our own and of pending sub-blocks.
578: */
1.107 schwarze 579:
1.165 schwarze 580: endbody = itblk = later = NULL;
1.76 schwarze 581: for (n = mdoc->last; n; n = n->parent) {
1.170 schwarze 582: if (n->flags & NODE_ENDED)
1.47 schwarze 583: continue;
584:
1.165 schwarze 585: /*
1.167 schwarze 586: * Mismatching end macros can never break anything
1.165 schwarze 587: * and we only care about the breaking of BLOCKs.
588: */
1.47 schwarze 589:
1.167 schwarze 590: if (body == NULL || n->type != ROFFT_BLOCK)
1.47 schwarze 591: continue;
1.116 schwarze 592:
1.167 schwarze 593: /*
594: * SYNOPSIS name blocks can not be broken themselves,
595: * but they do get broken together with a broken child.
596: */
597:
598: if (n->tok == MDOC_Nm) {
599: if (later != NULL)
600: n->flags |= NODE_BROKEN | NODE_ENDED;
601: continue;
602: }
603:
1.116 schwarze 604: if (n->tok == MDOC_It) {
1.127 schwarze 605: itblk = n;
1.116 schwarze 606: continue;
607: }
608:
1.47 schwarze 609: if (atok == n->tok) {
610:
611: /*
612: * Found the start of our own block.
613: * When there is no pending sub block,
614: * just proceed to closing out.
615: */
1.107 schwarze 616:
1.116 schwarze 617: if (later == NULL ||
1.127 schwarze 618: (tok == MDOC_El && itblk == NULL))
1.47 schwarze 619: break;
620:
1.88 schwarze 621: /*
1.123 schwarze 622: * When there is a pending sub block, postpone
623: * closing out the current block until the
624: * rew_pending() closing out the sub-block.
1.47 schwarze 625: * Mark the place where the formatting - but not
626: * the scope - of the current block ends.
627: */
1.107 schwarze 628:
1.139 schwarze 629: mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
630: line, ppos, "%s breaks %s",
1.176 schwarze 631: roff_name[atok], roff_name[later->tok]);
1.139 schwarze 632:
1.122 schwarze 633: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.173 schwarze 634: atok, body);
1.107 schwarze 635:
1.139 schwarze 636: if (tok == MDOC_El)
1.166 schwarze 637: itblk->flags |= NODE_ENDED | NODE_BROKEN;
1.139 schwarze 638:
1.107 schwarze 639: /*
640: * If a block closing macro taking arguments
641: * breaks another block, put the arguments
1.122 schwarze 642: * into the end marker.
1.107 schwarze 643: */
644:
1.122 schwarze 645: if (maxargs)
1.145 schwarze 646: mdoc->next = ROFF_NEXT_CHILD;
1.47 schwarze 647: break;
1.138 schwarze 648: }
649:
1.171 schwarze 650: /*
651: * Explicit blocks close out description lines, but
652: * even those can get broken together with a child.
653: */
1.138 schwarze 654:
655: if (n->tok == MDOC_Nd) {
1.171 schwarze 656: if (later != NULL)
657: n->flags |= NODE_BROKEN | NODE_ENDED;
658: else
659: rew_last(mdoc, n);
1.138 schwarze 660: continue;
1.47 schwarze 661: }
662:
1.139 schwarze 663: /* Breaking an open sub block. */
1.107 schwarze 664:
1.170 schwarze 665: break_intermediate(mdoc->last, body);
1.166 schwarze 666: n->flags |= NODE_BROKEN;
1.139 schwarze 667: if (later == NULL)
1.47 schwarze 668: later = n;
669: }
1.122 schwarze 670:
671: if (body == NULL) {
672: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
1.176 schwarze 673: line, ppos, roff_name[tok]);
1.122 schwarze 674: if (maxargs && endbody == NULL) {
675: /*
676: * Stray .Ec without previous .Eo:
677: * Break the output line, keep the arguments.
678: */
1.178 schwarze 679: roff_elem_alloc(mdoc, line, ppos, ROFF_br);
680: rew_elem(mdoc, ROFF_br);
1.122 schwarze 681: }
682: } else if (endbody == NULL) {
683: rew_last(mdoc, body);
684: if (maxargs)
685: mdoc_tail_alloc(mdoc, line, ppos, atok);
686: }
1.47 schwarze 687:
1.106 schwarze 688: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
689: if (buf[*pos] != '\0')
1.93 schwarze 690: mandoc_vmsg(MANDOCERR_ARG_SKIP,
691: mdoc->parse, line, ppos,
1.176 schwarze 692: "%s %s", roff_name[tok],
1.93 schwarze 693: buf + *pos);
1.127 schwarze 694: if (endbody == NULL && n != NULL)
1.123 schwarze 695: rew_pending(mdoc, n);
1.107 schwarze 696: return;
1.1 kristaps 697: }
698:
1.122 schwarze 699: if (endbody != NULL)
700: n = endbody;
1.153 schwarze 701:
702: ntok = TOKEN_NONE;
1.104 schwarze 703: for (j = 0; ; j++) {
1.1 kristaps 704: lastarg = *pos;
705:
1.142 schwarze 706: if (j == maxargs && n != NULL)
707: rew_last(mdoc, n);
1.1 kristaps 708:
1.76 schwarze 709: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 710: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 711: break;
712:
1.147 schwarze 713: ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.111 schwarze 714: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 715:
1.147 schwarze 716: if (ntok == TOKEN_NONE) {
1.106 schwarze 717: dword(mdoc, line, lastarg, p, DELIM_MAX,
718: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 719: continue;
720: }
1.1 kristaps 721:
1.142 schwarze 722: if (n != NULL)
723: rew_last(mdoc, n);
1.79 schwarze 724: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 725: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 726: break;
1.1 kristaps 727: }
728:
1.144 schwarze 729: if (n != NULL) {
1.169 schwarze 730: pending = 0;
1.166 schwarze 731: if (ntok != TOKEN_NONE && n->flags & NODE_BROKEN) {
1.144 schwarze 732: target = n;
733: do
734: target = target->parent;
1.166 schwarze 735: while ( ! (target->flags & NODE_ENDED));
1.172 schwarze 736: pending = find_pending(mdoc, ntok, line, ppos, target);
1.169 schwarze 737: }
1.144 schwarze 738: if ( ! pending)
739: rew_pending(mdoc, n);
740: }
1.106 schwarze 741: if (nl)
742: append_delims(mdoc, line, pos, buf);
1.1 kristaps 743: }
744:
1.107 schwarze 745: static void
1.1 kristaps 746: in_line(MACRO_PROT_ARGS)
747: {
1.100 schwarze 748: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.176 schwarze 749: enum roff_tok ntok;
1.36 schwarze 750: enum margserr ac;
1.40 schwarze 751: enum mdelim d;
1.36 schwarze 752: struct mdoc_arg *arg;
753: char *p;
1.1 kristaps 754:
1.76 schwarze 755: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 756:
1.1 kristaps 757: /*
758: * Whether we allow ignored elements (those without content,
759: * usually because of reserved words) to squeak by.
760: */
1.32 schwarze 761:
1.1 kristaps 762: switch (tok) {
1.88 schwarze 763: case MDOC_An:
764: case MDOC_Ar:
765: case MDOC_Fl:
766: case MDOC_Mt:
767: case MDOC_Nm:
768: case MDOC_Pa:
1.1 kristaps 769: nc = 1;
770: break;
771: default:
772: nc = 0;
773: break;
774: }
775:
1.108 schwarze 776: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 777:
1.100 schwarze 778: d = DELIM_NONE;
779: firstarg = 1;
1.98 schwarze 780: mayopen = 1;
1.45 schwarze 781: for (cnt = scope = 0;; ) {
1.1 kristaps 782: la = *pos;
1.76 schwarze 783: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 784:
1.100 schwarze 785: /*
786: * At the end of a macro line,
787: * opening delimiters do not suppress spacing.
788: */
789:
790: if (ac == ARGS_EOLN) {
791: if (d == DELIM_OPEN)
1.166 schwarze 792: mdoc->last->flags &= ~NODE_DELIMO;
1.1 kristaps 793: break;
1.100 schwarze 794: }
795:
796: /*
797: * The rest of the macro line is only punctuation,
798: * to be handled by append_delims().
799: * If there were no other arguments,
800: * do not allow the first one to suppress spacing,
801: * even if it turns out to be a closing one.
802: */
803:
804: if (ac == ARGS_PUNCT) {
1.132 schwarze 805: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.100 schwarze 806: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 807: break;
1.100 schwarze 808: }
1.1 kristaps 809:
1.101 schwarze 810: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.147 schwarze 811: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1 kristaps 812:
1.88 schwarze 813: /*
1.1 kristaps 814: * In this case, we've located a submacro and must
815: * execute it. Close out scope, if open. If no
816: * elements have been generated, either create one (nc)
817: * or raise a warning.
818: */
819:
1.147 schwarze 820: if (ntok != TOKEN_NONE) {
1.105 schwarze 821: if (scope)
822: rew_elem(mdoc, tok);
1.106 schwarze 823: if (nc && ! cnt) {
824: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 825: rew_last(mdoc, mdoc->last);
1.106 schwarze 826: } else if ( ! nc && ! cnt) {
1.1 kristaps 827: mdoc_argv_free(arg);
1.92 schwarze 828: mandoc_msg(MANDOCERR_MACRO_EMPTY,
829: mdoc->parse, line, ppos,
1.176 schwarze 830: roff_name[tok]);
1.1 kristaps 831: }
1.107 schwarze 832: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 833: if (nl)
834: append_delims(mdoc, line, pos, buf);
1.107 schwarze 835: return;
1.88 schwarze 836: }
1.1 kristaps 837:
1.88 schwarze 838: /*
1.1 kristaps 839: * Non-quote-enclosed punctuation. Set up our scope, if
840: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 841: * the word.
1.1 kristaps 842: */
843:
1.106 schwarze 844: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 845:
1.45 schwarze 846: if (DELIM_NONE != d) {
847: /*
848: * If we encounter closing punctuation, no word
1.100 schwarze 849: * has been emitted, no scope is open, and we're
1.45 schwarze 850: * allowed to have an empty element, then start
1.98 schwarze 851: * a new scope.
1.45 schwarze 852: */
1.98 schwarze 853: if ((d == DELIM_CLOSE ||
854: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 855: !cnt && !scope && nc && mayopen) {
1.106 schwarze 856: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 857: scope = 1;
1.98 schwarze 858: cnt++;
1.106 schwarze 859: if (tok == MDOC_Nm)
1.98 schwarze 860: mayopen = 0;
1.45 schwarze 861: }
862: /*
863: * Close out our scope, if one is open, before
864: * any punctuation.
865: */
1.105 schwarze 866: if (scope)
867: rew_elem(mdoc, tok);
1.45 schwarze 868: scope = 0;
1.101 schwarze 869: if (tok == MDOC_Fn)
870: mayopen = 0;
1.98 schwarze 871: } else if (mayopen && !scope) {
1.106 schwarze 872: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 873: scope = 1;
1.98 schwarze 874: cnt++;
1.1 kristaps 875: }
1.66 schwarze 876:
1.106 schwarze 877: dword(mdoc, line, la, p, d,
1.176 schwarze 878: mdoc_macros[tok].flags & MDOC_JOIN);
1.27 schwarze 879:
880: /*
1.100 schwarze 881: * If the first argument is a closing delimiter,
882: * do not suppress spacing before it.
883: */
884:
885: if (firstarg && d == DELIM_CLOSE && !nc)
1.166 schwarze 886: mdoc->last->flags &= ~NODE_DELIMC;
1.100 schwarze 887: firstarg = 0;
888:
889: /*
1.27 schwarze 890: * `Fl' macros have their scope re-opened with each new
891: * word so that the `-' can be added to each one without
892: * having to parse out spaces.
893: */
1.106 schwarze 894: if (scope && tok == MDOC_Fl) {
1.105 schwarze 895: rew_elem(mdoc, tok);
1.45 schwarze 896: scope = 0;
1.27 schwarze 897: }
1.1 kristaps 898: }
899:
1.175 schwarze 900: if (scope && tok != MDOC_Lk) {
1.105 schwarze 901: rew_elem(mdoc, tok);
1.175 schwarze 902: scope = 0;
903: }
1.1 kristaps 904:
905: /*
906: * If no elements have been collected and we're allowed to have
907: * empties (nc), open a scope and close it out. Otherwise,
908: * raise a warning.
909: */
1.32 schwarze 910:
1.106 schwarze 911: if ( ! cnt) {
912: if (nc) {
913: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
914: rew_last(mdoc, mdoc->last);
915: } else {
916: mdoc_argv_free(arg);
917: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.176 schwarze 918: line, ppos, roff_name[tok]);
1.106 schwarze 919: }
1.1 kristaps 920: }
1.106 schwarze 921: if (nl)
922: append_delims(mdoc, line, pos, buf);
1.175 schwarze 923: if (scope)
924: rew_elem(mdoc, tok);
1.1 kristaps 925: }
926:
1.107 schwarze 927: static void
1.1 kristaps 928: blk_full(MACRO_PROT_ARGS)
929: {
1.109 schwarze 930: int la, nl, parsed;
1.1 kristaps 931: struct mdoc_arg *arg;
1.141 schwarze 932: struct roff_node *blk; /* Our own or a broken block. */
933: struct roff_node *head; /* Our own head. */
934: struct roff_node *body; /* Our own body. */
935: struct roff_node *n;
1.37 schwarze 936: enum margserr ac, lac;
1.1 kristaps 937: char *p;
938:
1.76 schwarze 939: nl = MDOC_NEWLINE & mdoc->flags;
1.95 schwarze 940:
1.133 schwarze 941: if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
942: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.176 schwarze 943: line, ppos, roff_name[tok]);
1.133 schwarze 944: return;
945: }
946:
1.127 schwarze 947: if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
948:
949: /* Here, tok is one of Sh Ss Nm Nd It. */
950:
951: blk = NULL;
952: for (n = mdoc->last; n != NULL; n = n->parent) {
1.166 schwarze 953: if (n->flags & NODE_ENDED) {
954: if ( ! (n->flags & NODE_VALID))
955: n->flags |= NODE_BROKEN;
1.139 schwarze 956: continue;
957: }
1.140 schwarze 958: if (n->type != ROFFT_BLOCK)
1.127 schwarze 959: continue;
1.139 schwarze 960:
1.127 schwarze 961: if (tok == MDOC_It && n->tok == MDOC_Bl) {
962: if (blk != NULL) {
963: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
964: mdoc->parse, line, ppos,
965: "It breaks %s",
1.176 schwarze 966: roff_name[blk->tok]);
1.127 schwarze 967: rew_pending(mdoc, blk);
968: }
969: break;
970: }
971:
972: if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
973: switch (tok) {
974: case MDOC_Sh:
975: case MDOC_Ss:
976: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
977: mdoc->parse, line, ppos,
1.176 schwarze 978: "%s breaks %s", roff_name[tok],
979: roff_name[n->tok]);
1.127 schwarze 980: rew_pending(mdoc, n);
1.136 schwarze 981: n = mdoc->last;
1.127 schwarze 982: continue;
983: case MDOC_It:
984: /* Delay in case it's astray. */
985: blk = n;
986: continue;
987: default:
988: break;
989: }
990: break;
991: }
992:
993: /* Here, n is one of Sh Ss Nm Nd It. */
1.95 schwarze 994:
1.127 schwarze 995: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
996: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
997: (tok != MDOC_It && n->tok == MDOC_It)))))
1.95 schwarze 998: break;
1.127 schwarze 999:
1000: /* Item breaking an explicit block. */
1001:
1002: if (blk != NULL) {
1003: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
1004: mdoc->parse, line, ppos,
1.176 schwarze 1005: "It breaks %s", roff_name[blk->tok]);
1.127 schwarze 1006: rew_pending(mdoc, blk);
1.128 schwarze 1007: blk = NULL;
1.127 schwarze 1008: }
1009:
1010: /* Close out prior implicit scopes. */
1011:
1.167 schwarze 1012: rew_pending(mdoc, n);
1.127 schwarze 1013: }
1014:
1015: /* Skip items outside lists. */
1016:
1017: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.95 schwarze 1018: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1019: line, ppos, "It %s", buf + *pos);
1.178 schwarze 1020: roff_elem_alloc(mdoc, line, ppos, ROFF_br);
1021: rew_elem(mdoc, ROFF_br);
1.107 schwarze 1022: return;
1.95 schwarze 1023: }
1.1 kristaps 1024: }
1025:
1.32 schwarze 1026: /*
1.68 schwarze 1027: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 1028: * macro openings. Implicit ones first close out prior scope
1029: * (seen above). Delay opening the head until necessary to
1030: * allow leading punctuation to print. Special consideration
1031: * for `It -column', which has phrase-part syntax instead of
1032: * regular child nodes.
1033: */
1034:
1.108 schwarze 1035: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.121 schwarze 1036: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1037: head = body = NULL;
1.1 kristaps 1038:
1.32 schwarze 1039: /*
1.73 schwarze 1040: * Exception: Heads of `It' macros in `-diag' lists are not
1041: * parsed, even though `It' macros in general are parsed.
1042: */
1.107 schwarze 1043:
1.109 schwarze 1044: parsed = tok != MDOC_It ||
1045: mdoc->last->parent->tok != MDOC_Bl ||
1046: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1047:
1048: /*
1.32 schwarze 1049: * The `Nd' macro has all arguments in its body: it's a hybrid
1050: * of block partial-explicit and full-implicit. Stupid.
1051: */
1.12 schwarze 1052:
1.106 schwarze 1053: if (tok == MDOC_Nd) {
1.146 schwarze 1054: head = roff_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 1055: rew_last(mdoc, head);
1.146 schwarze 1056: body = roff_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1057: }
1058:
1.106 schwarze 1059: if (tok == MDOC_Bk)
1.80 schwarze 1060: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1061:
1.161 schwarze 1062: ac = ARGS_EOLN;
1.106 schwarze 1063: for (;;) {
1.161 schwarze 1064:
1065: /*
1066: * If we are right after a tab character,
1067: * do not parse the first word for macros.
1068: */
1069:
1070: if (mdoc->flags & MDOC_PHRASEQN) {
1071: mdoc->flags &= ~MDOC_PHRASEQN;
1072: mdoc->flags |= MDOC_PHRASEQF;
1073: }
1074:
1.32 schwarze 1075: la = *pos;
1.106 schwarze 1076: lac = ac;
1.76 schwarze 1077: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1078: if (ac == ARGS_EOLN) {
1.161 schwarze 1079: if (lac != ARGS_PHRASE ||
1080: ! (mdoc->flags & MDOC_PHRASEQF))
1.46 schwarze 1081: break;
1.161 schwarze 1082:
1.46 schwarze 1083: /*
1.161 schwarze 1084: * This line ends in a tab; start the next
1085: * column now, with a leading blank.
1.46 schwarze 1086: */
1.161 schwarze 1087:
1.123 schwarze 1088: if (body != NULL)
1089: rew_last(mdoc, body);
1.146 schwarze 1090: body = roff_body_alloc(mdoc, line, ppos, tok);
1.161 schwarze 1091: roff_word_alloc(mdoc, line, ppos, "\\&");
1.1 kristaps 1092: break;
1.41 schwarze 1093: }
1.161 schwarze 1094:
1.130 schwarze 1095: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1096: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1097: mdoc->parse, line, la, "%s ... %s",
1.176 schwarze 1098: roff_name[tok], buf + la);
1.130 schwarze 1099: break;
1100: }
1.129 schwarze 1101: if (tok == MDOC_Rs) {
1102: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1103: line, la, "Rs %s", buf + la);
1104: break;
1105: }
1106: if (ac == ARGS_PUNCT)
1107: break;
1.41 schwarze 1108:
1.88 schwarze 1109: /*
1.46 schwarze 1110: * Emit leading punctuation (i.e., punctuation before
1.140 schwarze 1111: * the ROFFT_HEAD) for non-phrase types.
1.46 schwarze 1112: */
1.32 schwarze 1113:
1.106 schwarze 1114: if (head == NULL &&
1115: ac != ARGS_PHRASE &&
1116: ac != ARGS_QWORD &&
1117: mdoc_isdelim(p) == DELIM_OPEN) {
1118: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1119: continue;
1120: }
1121:
1.46 schwarze 1122: /* Open a head if one hasn't been opened. */
1.32 schwarze 1123:
1.106 schwarze 1124: if (head == NULL)
1.146 schwarze 1125: head = roff_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1126:
1.161 schwarze 1127: if (ac == ARGS_PHRASE) {
1.107 schwarze 1128:
1.46 schwarze 1129: /*
1130: * If we haven't opened a body yet, rewind the
1131: * head; if we have, rewind that instead.
1132: */
1133:
1.123 schwarze 1134: rew_last(mdoc, body == NULL ? head : body);
1.146 schwarze 1135: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1136:
1.161 schwarze 1137: /* Process to the tab or to the end of the line. */
1.46 schwarze 1138:
1.161 schwarze 1139: mdoc->flags |= MDOC_PHRASE;
1.147 schwarze 1140: parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.161 schwarze 1141: mdoc->flags &= ~MDOC_PHRASE;
1.160 schwarze 1142:
1143: /* There may have been `Ta' macros. */
1144:
1145: while (body->next != NULL)
1146: body = body->next;
1.1 kristaps 1147: continue;
1148: }
1149:
1.109 schwarze 1150: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1151: break;
1.32 schwarze 1152: }
1.1 kristaps 1153:
1.166 schwarze 1154: if (blk->flags & NODE_VALID)
1.121 schwarze 1155: return;
1.106 schwarze 1156: if (head == NULL)
1.146 schwarze 1157: head = roff_head_alloc(mdoc, line, ppos, tok);
1.130 schwarze 1158: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.106 schwarze 1159: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1160: if (body != NULL)
1.46 schwarze 1161: goto out;
1.143 schwarze 1162: if (find_pending(mdoc, tok, line, ppos, head))
1.139 schwarze 1163: return;
1.54 schwarze 1164:
1.32 schwarze 1165: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1166:
1.123 schwarze 1167: rew_last(mdoc, head);
1.146 schwarze 1168: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1169: out:
1.106 schwarze 1170: if (mdoc->flags & MDOC_FREECOL) {
1.123 schwarze 1171: rew_last(mdoc, body);
1172: rew_last(mdoc, blk);
1.106 schwarze 1173: mdoc->flags &= ~MDOC_FREECOL;
1174: }
1.1 kristaps 1175: }
1176:
1.107 schwarze 1177: static void
1.1 kristaps 1178: blk_part_imp(MACRO_PROT_ARGS)
1179: {
1.43 schwarze 1180: int la, nl;
1.36 schwarze 1181: enum margserr ac;
1.1 kristaps 1182: char *p;
1.141 schwarze 1183: struct roff_node *blk; /* saved block context */
1184: struct roff_node *body; /* saved body context */
1185: struct roff_node *n;
1.1 kristaps 1186:
1.76 schwarze 1187: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1188:
1.32 schwarze 1189: /*
1190: * A macro that spans to the end of the line. This is generally
1191: * (but not necessarily) called as the first macro. The block
1192: * has a head as the immediate child, which is always empty,
1193: * followed by zero or more opening punctuation nodes, then the
1194: * body (which may be empty, depending on the macro), then zero
1195: * or more closing punctuation nodes.
1196: */
1.22 schwarze 1197:
1.106 schwarze 1198: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.146 schwarze 1199: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1200:
1.32 schwarze 1201: /*
1202: * Open the body scope "on-demand", that is, after we've
1203: * processed all our the leading delimiters (open parenthesis,
1204: * etc.).
1205: */
1.1 kristaps 1206:
1.32 schwarze 1207: for (body = NULL; ; ) {
1.22 schwarze 1208: la = *pos;
1.76 schwarze 1209: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1210: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1211: break;
1212:
1.106 schwarze 1213: if (body == NULL && ac != ARGS_QWORD &&
1214: mdoc_isdelim(p) == DELIM_OPEN) {
1215: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1216: continue;
1.80 schwarze 1217: }
1.1 kristaps 1218:
1.106 schwarze 1219: if (body == NULL)
1.146 schwarze 1220: body = roff_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1221:
1.109 schwarze 1222: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1223: break;
1.32 schwarze 1224: }
1.106 schwarze 1225: if (body == NULL)
1.146 schwarze 1226: body = roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1227:
1.143 schwarze 1228: if (find_pending(mdoc, tok, line, ppos, body))
1.139 schwarze 1229: return;
1230:
1.120 schwarze 1231: rew_last(mdoc, body);
1.106 schwarze 1232: if (nl)
1233: append_delims(mdoc, line, pos, buf);
1.122 schwarze 1234: rew_pending(mdoc, blk);
1.74 schwarze 1235:
1236: /* Move trailing .Ns out of scope. */
1237:
1238: for (n = body->child; n && n->next; n = n->next)
1239: /* Do nothing. */ ;
1.106 schwarze 1240: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1241: mdoc_node_relink(mdoc, n);
1.1 kristaps 1242: }
1243:
1.107 schwarze 1244: static void
1.1 kristaps 1245: blk_part_exp(MACRO_PROT_ARGS)
1246: {
1.37 schwarze 1247: int la, nl;
1.36 schwarze 1248: enum margserr ac;
1.141 schwarze 1249: struct roff_node *head; /* keep track of head */
1.1 kristaps 1250: char *p;
1251:
1.76 schwarze 1252: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1253:
1.32 schwarze 1254: /*
1255: * The opening of an explicit macro having zero or more leading
1256: * punctuation nodes; a head with optional single element (the
1257: * case of `Eo'); and a body that may be empty.
1258: */
1.22 schwarze 1259:
1.149 schwarze 1260: roff_block_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1261: head = NULL;
1262: for (;;) {
1.22 schwarze 1263: la = *pos;
1.76 schwarze 1264: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1265: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1266: break;
1267:
1.32 schwarze 1268: /* Flush out leading punctuation. */
1269:
1.106 schwarze 1270: if (head == NULL && ac != ARGS_QWORD &&
1271: mdoc_isdelim(p) == DELIM_OPEN) {
1272: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1273: continue;
1.80 schwarze 1274: }
1.32 schwarze 1275:
1.106 schwarze 1276: if (head == NULL) {
1.146 schwarze 1277: head = roff_head_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1278: if (tok == MDOC_Eo) /* Not parsed. */
1.106 schwarze 1279: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.119 schwarze 1280: rew_last(mdoc, head);
1.146 schwarze 1281: roff_body_alloc(mdoc, line, ppos, tok);
1.106 schwarze 1282: if (tok == MDOC_Eo)
1.32 schwarze 1283: continue;
1284: }
1285:
1.109 schwarze 1286: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1287: break;
1.1 kristaps 1288: }
1289:
1.32 schwarze 1290: /* Clean-up to leave in a consistent state. */
1291:
1.119 schwarze 1292: if (head == NULL) {
1.146 schwarze 1293: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1294: roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1295: }
1.106 schwarze 1296: if (nl)
1297: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1298: }
1299:
1.107 schwarze 1300: static void
1.1 kristaps 1301: in_line_argn(MACRO_PROT_ARGS)
1302: {
1.36 schwarze 1303: struct mdoc_arg *arg;
1304: char *p;
1.137 schwarze 1305: enum margserr ac;
1.176 schwarze 1306: enum roff_tok ntok;
1.137 schwarze 1307: int state; /* arg#; -1: not yet open; -2: closed */
1308: int la, maxargs, nl;
1.1 kristaps 1309:
1.112 schwarze 1310: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1311:
1.32 schwarze 1312: /*
1313: * A line macro that has a fixed number of arguments (maxargs).
1314: * Only open the scope once the first non-leading-punctuation is
1315: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1316: * keep it open until the maximum number of arguments are
1317: * exhausted.
1318: */
1.1 kristaps 1319:
1320: switch (tok) {
1.88 schwarze 1321: case MDOC_Ap:
1322: case MDOC_Ns:
1323: case MDOC_Ux:
1.1 kristaps 1324: maxargs = 0;
1325: break;
1.88 schwarze 1326: case MDOC_Bx:
1.89 schwarze 1327: case MDOC_Es:
1.88 schwarze 1328: case MDOC_Xr:
1.28 schwarze 1329: maxargs = 2;
1330: break;
1.1 kristaps 1331: default:
1332: maxargs = 1;
1333: break;
1334: }
1335:
1.108 schwarze 1336: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1337:
1.137 schwarze 1338: state = -1;
1.112 schwarze 1339: p = NULL;
1340: for (;;) {
1.22 schwarze 1341: la = *pos;
1.76 schwarze 1342: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.137 schwarze 1343:
1344: if (ac == ARGS_WORD && state == -1 &&
1345: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1346: mdoc_isdelim(p) == DELIM_OPEN) {
1347: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1348: continue;
1349: }
1350:
1351: if (state == -1 && tok != MDOC_In &&
1352: tok != MDOC_St && tok != MDOC_Xr) {
1353: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1354: state = 0;
1355: }
1356:
1.112 schwarze 1357: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.137 schwarze 1358: if (abs(state) < 2 && tok == MDOC_Pf)
1.112 schwarze 1359: mandoc_vmsg(MANDOCERR_PF_SKIP,
1360: mdoc->parse, line, ppos, "Pf %s",
1361: p == NULL ? "at eol" : p);
1.1 kristaps 1362: break;
1.112 schwarze 1363: }
1.1 kristaps 1364:
1.137 schwarze 1365: if (state == maxargs) {
1.105 schwarze 1366: rew_elem(mdoc, tok);
1.137 schwarze 1367: state = -2;
1.32 schwarze 1368: }
1369:
1.137 schwarze 1370: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.147 schwarze 1371: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1372:
1.147 schwarze 1373: if (ntok != TOKEN_NONE) {
1.137 schwarze 1374: if (state >= 0) {
1.105 schwarze 1375: rew_elem(mdoc, tok);
1.137 schwarze 1376: state = -2;
1377: }
1.107 schwarze 1378: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1379: break;
1380: }
1381:
1.137 schwarze 1382: if (ac == ARGS_QWORD ||
1383: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1384: mdoc_isdelim(p) == DELIM_NONE) {
1385: if (state == -1) {
1386: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1387: state = 1;
1388: } else if (state >= 0)
1389: state++;
1390: } else if (state >= 0) {
1.105 schwarze 1391: rew_elem(mdoc, tok);
1.137 schwarze 1392: state = -2;
1.28 schwarze 1393: }
1394:
1.106 schwarze 1395: dword(mdoc, line, la, p, DELIM_MAX,
1.176 schwarze 1396: mdoc_macros[tok].flags & MDOC_JOIN);
1.1 kristaps 1397: }
1398:
1.137 schwarze 1399: if (state == -1) {
1400: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.176 schwarze 1401: line, ppos, roff_name[tok]);
1.137 schwarze 1402: return;
1.112 schwarze 1403: }
1.137 schwarze 1404:
1405: if (state == 0 && tok == MDOC_Pf)
1406: append_delims(mdoc, line, pos, buf);
1407: if (state >= 0)
1.105 schwarze 1408: rew_elem(mdoc, tok);
1.106 schwarze 1409: if (nl)
1410: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1411: }
1412:
1.107 schwarze 1413: static void
1.1 kristaps 1414: in_line_eoln(MACRO_PROT_ARGS)
1415: {
1.141 schwarze 1416: struct roff_node *n;
1.126 schwarze 1417: struct mdoc_arg *arg;
1.1 kristaps 1418:
1.126 schwarze 1419: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1420: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1421: n = mdoc->last;
1.145 schwarze 1422: if (mdoc->next == ROFF_NEXT_SIBLING)
1.126 schwarze 1423: n = n->parent;
1424: if (n->tok == MDOC_Nm)
1.154 schwarze 1425: rew_last(mdoc, n->parent);
1.134 schwarze 1426: }
1427:
1.135 schwarze 1428: if (buf[*pos] == '\0' &&
1.176 schwarze 1429: (tok == MDOC_Fd || *roff_name[tok] == '%')) {
1.134 schwarze 1430: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.176 schwarze 1431: line, ppos, roff_name[tok]);
1.134 schwarze 1432: return;
1.126 schwarze 1433: }
1.53 schwarze 1434:
1.108 schwarze 1435: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1436: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1437: if (parse_rest(mdoc, tok, line, pos, buf))
1438: return;
1439: rew_elem(mdoc, tok);
1440: }
1441:
1442: /*
1443: * The simplest argument parser available: Parse the remaining
1444: * words until the end of the phrase or line and return 0
1445: * or until the next macro, call that macro, and return 1.
1446: */
1447: static int
1.176 schwarze 1448: parse_rest(struct roff_man *mdoc, enum roff_tok tok,
1449: int line, int *pos, char *buf)
1.110 schwarze 1450: {
1451: int la;
1.1 kristaps 1452:
1453: for (;;) {
1454: la = *pos;
1.109 schwarze 1455: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.158 schwarze 1456: return 0;
1.109 schwarze 1457: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.158 schwarze 1458: return 1;
1.1 kristaps 1459: }
1.28 schwarze 1460: }
1461:
1.107 schwarze 1462: static void
1.28 schwarze 1463: ctx_synopsis(MACRO_PROT_ARGS)
1464: {
1.37 schwarze 1465:
1.107 schwarze 1466: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1467: in_line(mdoc, tok, line, ppos, pos, buf);
1468: else if (tok == MDOC_Nm)
1469: blk_full(mdoc, tok, line, ppos, pos, buf);
1470: else {
1471: assert(tok == MDOC_Vt);
1472: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1473: }
1.1 kristaps 1474: }
1475:
1.17 schwarze 1476: /*
1477: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1478: * They're unusual because they're basically free-form text until a
1479: * macro is encountered.
1480: */
1.107 schwarze 1481: static void
1.46 schwarze 1482: phrase_ta(MACRO_PROT_ARGS)
1483: {
1.141 schwarze 1484: struct roff_node *body, *n;
1.46 schwarze 1485:
1.78 schwarze 1486: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1487:
1.123 schwarze 1488: body = NULL;
1489: for (n = mdoc->last; n != NULL; n = n->parent) {
1.166 schwarze 1490: if (n->flags & NODE_ENDED)
1.123 schwarze 1491: continue;
1.140 schwarze 1492: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.123 schwarze 1493: body = n;
1.164 schwarze 1494: if (n->tok == MDOC_Bl && n->end == ENDBODY_NOT)
1.123 schwarze 1495: break;
1496: }
1497:
1.107 schwarze 1498: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1499: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1500: line, ppos, "Ta");
1.107 schwarze 1501: return;
1.78 schwarze 1502: }
1.46 schwarze 1503:
1.78 schwarze 1504: /* Advance to the next column. */
1.106 schwarze 1505:
1.123 schwarze 1506: rew_last(mdoc, body);
1.146 schwarze 1507: roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.147 schwarze 1508: parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.46 schwarze 1509: }
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