Annotation of src/usr.bin/mandoc/mdoc_macro.c, Revision 1.174
1.174 ! schwarze 1: /* $OpenBSD: mdoc_macro.c,v 1.173 2017/02/16 02:59:42 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);
1.145 schwarze 47: static int find_pending(struct roff_man *, int, int, int,
1.143 schwarze 48: struct roff_node *);
1.145 schwarze 49: static int lookup(struct roff_man *, int, int, int, const char *);
1.109 schwarze 50: static int macro_or_word(MACRO_PROT_ARGS, int);
1.170 schwarze 51: static void break_intermediate(struct roff_node *,
52: struct roff_node *);
1.145 schwarze 53: static int parse_rest(struct roff_man *, int, int, int *, char *);
1.141 schwarze 54: static int rew_alt(int);
1.145 schwarze 55: static void rew_elem(struct roff_man *, int);
56: static void rew_last(struct roff_man *, const struct roff_node *);
57: static void rew_pending(struct roff_man *,
58: const struct roff_node *);
1.1 kristaps 59:
60: const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.80 schwarze 61: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1 kristaps 62: { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
63: { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
64: { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.80 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 */
1.1 kristaps 77: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.86 schwarze 78: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1 kristaps 79: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.80 schwarze 80: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
81: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
82: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1 kristaps 83: { in_line_eoln, 0 }, /* Ex */
1.80 schwarze 84: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
85: { in_line_eoln, 0 }, /* Fd */
1.1 kristaps 86: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.80 schwarze 87: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
88: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.85 schwarze 89: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.11 schwarze 90: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.80 schwarze 91: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
92: { blk_full, MDOC_JOIN }, /* Nd */
93: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1 kristaps 94: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.89 schwarze 95: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1 kristaps 96: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
97: { in_line_eoln, 0 }, /* Rv */
1.80 schwarze 98: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1 kristaps 99: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.80 schwarze 100: { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.28 schwarze 101: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.80 schwarze 102: { in_line_eoln, MDOC_JOIN }, /* %A */
103: { in_line_eoln, MDOC_JOIN }, /* %B */
104: { in_line_eoln, MDOC_JOIN }, /* %D */
105: { in_line_eoln, MDOC_JOIN }, /* %I */
106: { in_line_eoln, MDOC_JOIN }, /* %J */
1.1 kristaps 107: { in_line_eoln, 0 }, /* %N */
1.80 schwarze 108: { in_line_eoln, MDOC_JOIN }, /* %O */
1.1 kristaps 109: { in_line_eoln, 0 }, /* %P */
1.80 schwarze 110: { in_line_eoln, MDOC_JOIN }, /* %R */
111: { in_line_eoln, MDOC_JOIN }, /* %T */
1.1 kristaps 112: { in_line_eoln, 0 }, /* %V */
1.80 schwarze 113: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
114: MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
115: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
116: MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
117: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1 kristaps 118: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.80 schwarze 119: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
120: MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
121: { blk_full, MDOC_EXPLICIT }, /* Bf */
122: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
123: MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
124: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1 kristaps 125: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
126: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
127: { in_line_eoln, 0 }, /* Db */
1.80 schwarze 128: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
129: MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
130: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
131: MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
132: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
133: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
134: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
135: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1 kristaps 136: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
137: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.3 schwarze 138: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.100 schwarze 139: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.80 schwarze 140: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
141: MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1 kristaps 142: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
143: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.80 schwarze 144: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
145: MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.35 schwarze 146: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.80 schwarze 147: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
148: MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
149: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
150: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
151: MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
152: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
153: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
154: MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
155: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
156: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1 kristaps 157: { blk_full, MDOC_EXPLICIT }, /* Rs */
1.80 schwarze 158: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
159: MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
160: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
161: MDOC_EXPLICIT | MDOC_JOIN }, /* So */
162: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.103 schwarze 163: { in_line_argn, 0 }, /* Sm */
1.80 schwarze 164: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
165: { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1 kristaps 166: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.80 schwarze 167: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1 kristaps 168: { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
169: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.80 schwarze 170: { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
171: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
172: MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
173: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
174: MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
175: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
176: MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1 kristaps 177: { blk_full, MDOC_EXPLICIT }, /* Bk */
1.80 schwarze 178: { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1 kristaps 179: { in_line_eoln, 0 }, /* Bt */
180: { in_line_eoln, 0 }, /* Hf */
1.89 schwarze 181: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1 kristaps 182: { in_line_eoln, 0 }, /* Ud */
1.45 schwarze 183: { in_line, 0 }, /* Lb */
1.80 schwarze 184: { in_line_eoln, 0 }, /* Lp */
185: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
186: { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
187: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
188: { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
189: MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
190: { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
191: MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
192: { in_line_eoln, MDOC_JOIN }, /* %C */
1.89 schwarze 193: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
194: { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1 kristaps 195: { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.80 schwarze 196: { in_line_eoln, MDOC_JOIN }, /* %Q */
1.13 schwarze 197: { in_line_eoln, 0 }, /* br */
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: };
203:
204: const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
205:
206:
207: /*
208: * This is called at the end of parsing. It must traverse up the tree,
209: * closing out open [implicit] scopes. Obviously, open explicit scopes
210: * are errors.
211: */
1.107 schwarze 212: void
1.151 schwarze 213: mdoc_endparse(struct roff_man *mdoc)
1.1 kristaps 214: {
1.141 schwarze 215: struct roff_node *n;
1.1 kristaps 216:
217: /* Scan for open explicit scopes. */
218:
1.166 schwarze 219: n = mdoc->last->flags & NODE_VALID ?
1.88 schwarze 220: mdoc->last->parent : mdoc->last;
1.1 kristaps 221:
1.56 schwarze 222: for ( ; n; n = n->parent)
1.140 schwarze 223: if (n->type == ROFFT_BLOCK &&
1.107 schwarze 224: mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.94 schwarze 225: mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
226: n->line, n->pos, mdoc_macronames[n->tok]);
1.1 kristaps 227:
1.22 schwarze 228: /* Rewind to the first. */
229:
1.105 schwarze 230: rew_last(mdoc, mdoc->first);
1.162 schwarze 231: mdoc_state_reset(mdoc);
1.1 kristaps 232: }
233:
1.22 schwarze 234: /*
1.109 schwarze 235: * Look up the macro at *p called by "from",
1.147 schwarze 236: * or as a line macro if from == TOKEN_NONE.
1.22 schwarze 237: */
1.141 schwarze 238: static int
1.145 schwarze 239: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.21 schwarze 240: {
1.141 schwarze 241: int res;
1.1 kristaps 242:
1.161 schwarze 243: if (mdoc->flags & MDOC_PHRASEQF) {
244: mdoc->flags &= ~MDOC_PHRASEQF;
245: return TOKEN_NONE;
246: }
1.147 schwarze 247: if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
1.109 schwarze 248: res = mdoc_hash_find(p);
1.147 schwarze 249: if (res != TOKEN_NONE) {
1.111 schwarze 250: if (mdoc_macros[res].flags & MDOC_CALLABLE)
1.158 schwarze 251: return res;
1.111 schwarze 252: if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
253: mandoc_msg(MANDOCERR_MACRO_CALL,
254: mdoc->parse, line, ppos, p);
255: }
1.109 schwarze 256: }
1.158 schwarze 257: return TOKEN_NONE;
1.1 kristaps 258: }
259:
1.122 schwarze 260: /*
261: * Rewind up to and including a specific node.
262: */
1.105 schwarze 263: static void
1.145 schwarze 264: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1 kristaps 265: {
266:
1.166 schwarze 267: if (to->flags & NODE_VALID)
1.142 schwarze 268: return;
269:
1.1 kristaps 270: while (mdoc->last != to) {
1.162 schwarze 271: mdoc_state(mdoc, mdoc->last);
1.166 schwarze 272: mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.162 schwarze 273: mdoc->last = mdoc->last->parent;
1.1 kristaps 274: }
1.162 schwarze 275: mdoc_state(mdoc, mdoc->last);
1.166 schwarze 276: mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.156 schwarze 277: mdoc->next = ROFF_NEXT_SIBLING;
1.1 kristaps 278: }
279:
1.22 schwarze 280: /*
1.122 schwarze 281: * Rewind up to a specific block, including all blocks that broke it.
282: */
283: static void
1.145 schwarze 284: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.122 schwarze 285: {
286:
1.139 schwarze 287: for (;;) {
288: rew_last(mdoc, n);
289:
1.150 schwarze 290: if (mdoc->last == n) {
291: switch (n->type) {
292: case ROFFT_HEAD:
293: roff_body_alloc(mdoc, n->line, n->pos,
294: n->tok);
1.163 schwarze 295: break;
1.150 schwarze 296: case ROFFT_BLOCK:
297: break;
298: default:
299: return;
300: }
1.166 schwarze 301: if ( ! (n->flags & NODE_BROKEN))
1.150 schwarze 302: return;
303: } else
304: n = mdoc->last;
1.122 schwarze 305:
1.139 schwarze 306: for (;;) {
307: if ((n = n->parent) == NULL)
308: return;
309:
1.140 schwarze 310: if (n->type == ROFFT_BLOCK ||
311: n->type == ROFFT_HEAD) {
1.166 schwarze 312: if (n->flags & NODE_ENDED)
1.139 schwarze 313: break;
314: else
315: return;
316: }
317: }
1.122 schwarze 318: }
319: }
320:
321: /*
1.48 schwarze 322: * For a block closing macro, return the corresponding opening one.
323: * Otherwise, return the macro itself.
1.22 schwarze 324: */
1.141 schwarze 325: static int
326: rew_alt(int tok)
1.1 kristaps 327: {
328: switch (tok) {
1.88 schwarze 329: case MDOC_Ac:
1.158 schwarze 330: return MDOC_Ao;
1.88 schwarze 331: case MDOC_Bc:
1.158 schwarze 332: return MDOC_Bo;
1.88 schwarze 333: case MDOC_Brc:
1.158 schwarze 334: return MDOC_Bro;
1.88 schwarze 335: case MDOC_Dc:
1.158 schwarze 336: return MDOC_Do;
1.88 schwarze 337: case MDOC_Ec:
1.158 schwarze 338: return MDOC_Eo;
1.88 schwarze 339: case MDOC_Ed:
1.158 schwarze 340: return MDOC_Bd;
1.88 schwarze 341: case MDOC_Ef:
1.158 schwarze 342: return MDOC_Bf;
1.88 schwarze 343: case MDOC_Ek:
1.158 schwarze 344: return MDOC_Bk;
1.88 schwarze 345: case MDOC_El:
1.158 schwarze 346: return MDOC_Bl;
1.88 schwarze 347: case MDOC_Fc:
1.158 schwarze 348: return MDOC_Fo;
1.88 schwarze 349: case MDOC_Oc:
1.158 schwarze 350: return MDOC_Oo;
1.88 schwarze 351: case MDOC_Pc:
1.158 schwarze 352: return MDOC_Po;
1.88 schwarze 353: case MDOC_Qc:
1.158 schwarze 354: return MDOC_Qo;
1.88 schwarze 355: case MDOC_Re:
1.158 schwarze 356: return MDOC_Rs;
1.88 schwarze 357: case MDOC_Sc:
1.158 schwarze 358: return MDOC_So;
1.88 schwarze 359: case MDOC_Xc:
1.158 schwarze 360: return MDOC_Xo;
1.1 kristaps 361: default:
1.158 schwarze 362: return tok;
1.1 kristaps 363: }
364: }
365:
1.105 schwarze 366: static void
1.145 schwarze 367: rew_elem(struct roff_man *mdoc, int tok)
1.1 kristaps 368: {
1.141 schwarze 369: struct roff_node *n;
1.1 kristaps 370:
371: n = mdoc->last;
1.140 schwarze 372: if (n->type != ROFFT_ELEM)
1.1 kristaps 373: n = n->parent;
1.140 schwarze 374: assert(n->type == ROFFT_ELEM);
1.1 kristaps 375: assert(tok == n->tok);
1.105 schwarze 376: rew_last(mdoc, n);
1.1 kristaps 377: }
378:
1.170 schwarze 379: static void
380: break_intermediate(struct roff_node *n, struct roff_node *breaker)
381: {
1.174 ! schwarze 382: if (n != breaker &&
! 383: n->type != ROFFT_BLOCK && n->type != ROFFT_HEAD &&
! 384: (n->type != ROFFT_BODY || n->end != ENDBODY_NOT))
! 385: n = n->parent;
1.170 schwarze 386: while (n != breaker) {
387: if ( ! (n->flags & NODE_VALID))
388: n->flags |= NODE_BROKEN;
389: n = n->parent;
390: }
391: }
392:
1.47 schwarze 393: /*
1.143 schwarze 394: * If there is an open sub-block of the target requiring
395: * explicit close-out, postpone closing out the target until
396: * the rew_pending() call closing out the sub-block.
397: */
398: static int
1.145 schwarze 399: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.143 schwarze 400: struct roff_node *target)
401: {
402: struct roff_node *n;
403: int irc;
404:
1.172 schwarze 405: if (target->flags & NODE_VALID)
406: return 0;
407:
1.143 schwarze 408: irc = 0;
409: for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
1.170 schwarze 410: if (n->flags & NODE_ENDED)
1.143 schwarze 411: continue;
412: if (n->type == ROFFT_BLOCK &&
413: mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
414: irc = 1;
1.174 ! schwarze 415: break_intermediate(mdoc->last, target);
1.143 schwarze 416: if (target->type == ROFFT_HEAD)
1.169 schwarze 417: target->flags |= NODE_ENDED;
1.166 schwarze 418: else if ( ! (target->flags & NODE_ENDED)) {
1.143 schwarze 419: mandoc_vmsg(MANDOCERR_BLK_NEST,
420: mdoc->parse, line, ppos,
421: "%s breaks %s", mdoc_macronames[tok],
422: mdoc_macronames[n->tok]);
423: mdoc_endbody_alloc(mdoc, line, ppos,
1.173 schwarze 424: tok, target);
1.143 schwarze 425: }
426: }
427: }
1.158 schwarze 428: return irc;
1.143 schwarze 429: }
430:
431: /*
1.66 schwarze 432: * Allocate a word and check whether it's punctuation or not.
433: * Punctuation consists of those tokens found in mdoc_isdelim().
434: */
1.106 schwarze 435: static void
1.145 schwarze 436: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.80 schwarze 437: enum mdelim d, int may_append)
1.66 schwarze 438: {
1.88 schwarze 439:
1.106 schwarze 440: if (d == DELIM_MAX)
1.66 schwarze 441: d = mdoc_isdelim(p);
442:
1.80 schwarze 443: if (may_append &&
1.106 schwarze 444: ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.140 schwarze 445: d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.106 schwarze 446: mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.148 schwarze 447: roff_word_append(mdoc, p);
1.106 schwarze 448: return;
1.80 schwarze 449: }
450:
1.148 schwarze 451: roff_word_alloc(mdoc, line, col, p);
1.66 schwarze 452:
1.71 schwarze 453: /*
1.100 schwarze 454: * If the word consists of a bare delimiter,
455: * flag the new node accordingly,
456: * unless doing so was vetoed by the invoking macro.
457: * Always clear the veto, it is only valid for one word.
1.71 schwarze 458: */
459:
1.100 schwarze 460: if (d == DELIM_OPEN)
1.166 schwarze 461: mdoc->last->flags |= NODE_DELIMO;
1.100 schwarze 462: else if (d == DELIM_CLOSE &&
463: ! (mdoc->flags & MDOC_NODELIMC) &&
1.88 schwarze 464: mdoc->last->parent->tok != MDOC_Fd)
1.166 schwarze 465: mdoc->last->flags |= NODE_DELIMC;
1.100 schwarze 466: mdoc->flags &= ~MDOC_NODELIMC;
1.66 schwarze 467: }
1.1 kristaps 468:
1.106 schwarze 469: static void
1.145 schwarze 470: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1 kristaps 471: {
1.109 schwarze 472: char *p;
1.42 schwarze 473: int la;
1.1 kristaps 474:
1.106 schwarze 475: if (buf[*pos] == '\0')
476: return;
1.1 kristaps 477:
478: for (;;) {
1.42 schwarze 479: la = *pos;
1.147 schwarze 480: if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
481: ARGS_EOLN)
1.1 kristaps 482: break;
1.80 schwarze 483: dword(mdoc, line, la, p, DELIM_MAX, 1);
1.43 schwarze 484:
1.42 schwarze 485: /*
486: * If we encounter end-of-sentence symbols, then trigger
487: * the double-space.
488: *
1.68 schwarze 489: * XXX: it's easy to allow this to propagate outward to
1.42 schwarze 490: * the last symbol, such that `. )' will cause the
491: * correct double-spacing. However, (1) groff isn't
492: * smart enough to do this and (2) it would require
493: * knowing which symbols break this behaviour, for
1.68 schwarze 494: * example, `. ;' shouldn't propagate the double-space.
1.42 schwarze 495: */
1.106 schwarze 496:
1.84 schwarze 497: if (mandoc_eos(p, strlen(p)))
1.166 schwarze 498: mdoc->last->flags |= NODE_EOS;
1.1 kristaps 499: }
500: }
501:
502: /*
1.109 schwarze 503: * Parse one word.
504: * If it is a macro, call it and return 1.
505: * Otherwise, allocate it and return 0.
506: */
507: static int
508: macro_or_word(MACRO_PROT_ARGS, int parsed)
509: {
510: char *p;
1.141 schwarze 511: int ntok;
1.109 schwarze 512:
513: p = buf + ppos;
1.147 schwarze 514: ntok = TOKEN_NONE;
1.113 schwarze 515: if (*p == '"')
1.109 schwarze 516: p++;
1.113 schwarze 517: else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.111 schwarze 518: ntok = lookup(mdoc, tok, line, ppos, p);
1.109 schwarze 519:
1.147 schwarze 520: if (ntok == TOKEN_NONE) {
521: dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.109 schwarze 522: mdoc_macros[tok].flags & MDOC_JOIN);
1.158 schwarze 523: return 0;
1.109 schwarze 524: } else {
525: if (mdoc_macros[tok].fp == in_line_eoln)
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;
1.141 schwarze 549: int 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",
634: mdoc_macronames[atok],
635: mdoc_macronames[later->tok]);
636:
1.122 schwarze 637: endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.173 schwarze 638: atok, body);
1.107 schwarze 639:
1.139 schwarze 640: if (tok == MDOC_El)
1.166 schwarze 641: itblk->flags |= NODE_ENDED | NODE_BROKEN;
1.139 schwarze 642:
1.107 schwarze 643: /*
644: * If a block closing macro taking arguments
645: * breaks another block, put the arguments
1.122 schwarze 646: * into the end marker.
1.107 schwarze 647: */
648:
1.122 schwarze 649: if (maxargs)
1.145 schwarze 650: mdoc->next = ROFF_NEXT_CHILD;
1.47 schwarze 651: break;
1.138 schwarze 652: }
653:
1.171 schwarze 654: /*
655: * Explicit blocks close out description lines, but
656: * even those can get broken together with a child.
657: */
1.138 schwarze 658:
659: if (n->tok == MDOC_Nd) {
1.171 schwarze 660: if (later != NULL)
661: n->flags |= NODE_BROKEN | NODE_ENDED;
662: else
663: rew_last(mdoc, n);
1.138 schwarze 664: continue;
1.47 schwarze 665: }
666:
1.139 schwarze 667: /* Breaking an open sub block. */
1.107 schwarze 668:
1.170 schwarze 669: break_intermediate(mdoc->last, body);
1.166 schwarze 670: n->flags |= NODE_BROKEN;
1.139 schwarze 671: if (later == NULL)
1.47 schwarze 672: later = n;
673: }
1.122 schwarze 674:
675: if (body == NULL) {
676: mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
677: line, ppos, mdoc_macronames[tok]);
678: if (maxargs && endbody == NULL) {
679: /*
680: * Stray .Ec without previous .Eo:
681: * Break the output line, keep the arguments.
682: */
1.149 schwarze 683: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.122 schwarze 684: rew_elem(mdoc, MDOC_br);
685: }
686: } else if (endbody == NULL) {
687: rew_last(mdoc, body);
688: if (maxargs)
689: mdoc_tail_alloc(mdoc, line, ppos, atok);
690: }
1.47 schwarze 691:
1.106 schwarze 692: if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
693: if (buf[*pos] != '\0')
1.93 schwarze 694: mandoc_vmsg(MANDOCERR_ARG_SKIP,
695: mdoc->parse, line, ppos,
696: "%s %s", mdoc_macronames[tok],
697: buf + *pos);
1.127 schwarze 698: if (endbody == NULL && n != NULL)
1.123 schwarze 699: rew_pending(mdoc, n);
1.107 schwarze 700: return;
1.1 kristaps 701: }
702:
1.122 schwarze 703: if (endbody != NULL)
704: n = endbody;
1.153 schwarze 705:
706: ntok = TOKEN_NONE;
1.104 schwarze 707: for (j = 0; ; j++) {
1.1 kristaps 708: lastarg = *pos;
709:
1.142 schwarze 710: if (j == maxargs && n != NULL)
711: rew_last(mdoc, n);
1.1 kristaps 712:
1.76 schwarze 713: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 714: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 715: break;
716:
1.147 schwarze 717: ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.111 schwarze 718: lookup(mdoc, tok, line, lastarg, p);
1.36 schwarze 719:
1.147 schwarze 720: if (ntok == TOKEN_NONE) {
1.106 schwarze 721: dword(mdoc, line, lastarg, p, DELIM_MAX,
722: MDOC_JOIN & mdoc_macros[tok].flags);
1.36 schwarze 723: continue;
724: }
1.1 kristaps 725:
1.142 schwarze 726: if (n != NULL)
727: rew_last(mdoc, n);
1.79 schwarze 728: mdoc->flags &= ~MDOC_NEWLINE;
1.107 schwarze 729: mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.36 schwarze 730: break;
1.1 kristaps 731: }
732:
1.144 schwarze 733: if (n != NULL) {
1.169 schwarze 734: pending = 0;
1.166 schwarze 735: if (ntok != TOKEN_NONE && n->flags & NODE_BROKEN) {
1.144 schwarze 736: target = n;
737: do
738: target = target->parent;
1.166 schwarze 739: while ( ! (target->flags & NODE_ENDED));
1.172 schwarze 740: pending = find_pending(mdoc, ntok, line, ppos, target);
1.169 schwarze 741: }
1.144 schwarze 742: if ( ! pending)
743: rew_pending(mdoc, n);
744: }
1.106 schwarze 745: if (nl)
746: append_delims(mdoc, line, pos, buf);
1.1 kristaps 747: }
748:
1.107 schwarze 749: static void
1.1 kristaps 750: in_line(MACRO_PROT_ARGS)
751: {
1.100 schwarze 752: int la, scope, cnt, firstarg, mayopen, nc, nl;
1.141 schwarze 753: int ntok;
1.36 schwarze 754: enum margserr ac;
1.40 schwarze 755: enum mdelim d;
1.36 schwarze 756: struct mdoc_arg *arg;
757: char *p;
1.1 kristaps 758:
1.76 schwarze 759: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 760:
1.1 kristaps 761: /*
762: * Whether we allow ignored elements (those without content,
763: * usually because of reserved words) to squeak by.
764: */
1.32 schwarze 765:
1.1 kristaps 766: switch (tok) {
1.88 schwarze 767: case MDOC_An:
768: case MDOC_Ar:
769: case MDOC_Fl:
770: case MDOC_Mt:
771: case MDOC_Nm:
772: case MDOC_Pa:
1.1 kristaps 773: nc = 1;
774: break;
775: default:
776: nc = 0;
777: break;
778: }
779:
1.108 schwarze 780: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 781:
1.100 schwarze 782: d = DELIM_NONE;
783: firstarg = 1;
1.98 schwarze 784: mayopen = 1;
1.45 schwarze 785: for (cnt = scope = 0;; ) {
1.1 kristaps 786: la = *pos;
1.76 schwarze 787: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1 kristaps 788:
1.100 schwarze 789: /*
790: * At the end of a macro line,
791: * opening delimiters do not suppress spacing.
792: */
793:
794: if (ac == ARGS_EOLN) {
795: if (d == DELIM_OPEN)
1.166 schwarze 796: mdoc->last->flags &= ~NODE_DELIMO;
1.1 kristaps 797: break;
1.100 schwarze 798: }
799:
800: /*
801: * The rest of the macro line is only punctuation,
802: * to be handled by append_delims().
803: * If there were no other arguments,
804: * do not allow the first one to suppress spacing,
805: * even if it turns out to be a closing one.
806: */
807:
808: if (ac == ARGS_PUNCT) {
1.132 schwarze 809: if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.100 schwarze 810: mdoc->flags |= MDOC_NODELIMC;
1.1 kristaps 811: break;
1.100 schwarze 812: }
1.1 kristaps 813:
1.101 schwarze 814: ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.147 schwarze 815: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1 kristaps 816:
1.88 schwarze 817: /*
1.1 kristaps 818: * In this case, we've located a submacro and must
819: * execute it. Close out scope, if open. If no
820: * elements have been generated, either create one (nc)
821: * or raise a warning.
822: */
823:
1.147 schwarze 824: if (ntok != TOKEN_NONE) {
1.105 schwarze 825: if (scope)
826: rew_elem(mdoc, tok);
1.106 schwarze 827: if (nc && ! cnt) {
828: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.105 schwarze 829: rew_last(mdoc, mdoc->last);
1.106 schwarze 830: } else if ( ! nc && ! cnt) {
1.1 kristaps 831: mdoc_argv_free(arg);
1.92 schwarze 832: mandoc_msg(MANDOCERR_MACRO_EMPTY,
833: mdoc->parse, line, ppos,
834: mdoc_macronames[tok]);
1.1 kristaps 835: }
1.107 schwarze 836: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.106 schwarze 837: if (nl)
838: append_delims(mdoc, line, pos, buf);
1.107 schwarze 839: return;
1.88 schwarze 840: }
1.1 kristaps 841:
1.88 schwarze 842: /*
1.1 kristaps 843: * Non-quote-enclosed punctuation. Set up our scope, if
844: * a word; rewind the scope, if a delimiter; then append
1.88 schwarze 845: * the word.
1.1 kristaps 846: */
847:
1.106 schwarze 848: d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.1 kristaps 849:
1.45 schwarze 850: if (DELIM_NONE != d) {
851: /*
852: * If we encounter closing punctuation, no word
1.100 schwarze 853: * has been emitted, no scope is open, and we're
1.45 schwarze 854: * allowed to have an empty element, then start
1.98 schwarze 855: * a new scope.
1.45 schwarze 856: */
1.98 schwarze 857: if ((d == DELIM_CLOSE ||
858: (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.100 schwarze 859: !cnt && !scope && nc && mayopen) {
1.106 schwarze 860: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 861: scope = 1;
1.98 schwarze 862: cnt++;
1.106 schwarze 863: if (tok == MDOC_Nm)
1.98 schwarze 864: mayopen = 0;
1.45 schwarze 865: }
866: /*
867: * Close out our scope, if one is open, before
868: * any punctuation.
869: */
1.105 schwarze 870: if (scope)
871: rew_elem(mdoc, tok);
1.45 schwarze 872: scope = 0;
1.101 schwarze 873: if (tok == MDOC_Fn)
874: mayopen = 0;
1.98 schwarze 875: } else if (mayopen && !scope) {
1.106 schwarze 876: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.45 schwarze 877: scope = 1;
1.98 schwarze 878: cnt++;
1.1 kristaps 879: }
1.66 schwarze 880:
1.106 schwarze 881: dword(mdoc, line, la, p, d,
882: MDOC_JOIN & mdoc_macros[tok].flags);
1.27 schwarze 883:
884: /*
1.100 schwarze 885: * If the first argument is a closing delimiter,
886: * do not suppress spacing before it.
887: */
888:
889: if (firstarg && d == DELIM_CLOSE && !nc)
1.166 schwarze 890: mdoc->last->flags &= ~NODE_DELIMC;
1.100 schwarze 891: firstarg = 0;
892:
893: /*
1.27 schwarze 894: * `Fl' macros have their scope re-opened with each new
895: * word so that the `-' can be added to each one without
896: * having to parse out spaces.
897: */
1.106 schwarze 898: if (scope && tok == MDOC_Fl) {
1.105 schwarze 899: rew_elem(mdoc, tok);
1.45 schwarze 900: scope = 0;
1.27 schwarze 901: }
1.1 kristaps 902: }
903:
1.105 schwarze 904: if (scope)
905: rew_elem(mdoc, tok);
1.1 kristaps 906:
907: /*
908: * If no elements have been collected and we're allowed to have
909: * empties (nc), open a scope and close it out. Otherwise,
910: * raise a warning.
911: */
1.32 schwarze 912:
1.106 schwarze 913: if ( ! cnt) {
914: if (nc) {
915: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
916: rew_last(mdoc, mdoc->last);
917: } else {
918: mdoc_argv_free(arg);
919: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
920: line, ppos, mdoc_macronames[tok]);
921: }
1.1 kristaps 922: }
1.106 schwarze 923: if (nl)
924: append_delims(mdoc, line, pos, buf);
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,
943: line, ppos, mdoc_macronames[tok]);
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",
966: mdoc_macronames[blk->tok]);
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,
978: "%s breaks %s",
979: mdoc_macronames[tok],
980: mdoc_macronames[n->tok]);
981: rew_pending(mdoc, n);
1.136 schwarze 982: n = mdoc->last;
1.127 schwarze 983: continue;
984: case MDOC_It:
985: /* Delay in case it's astray. */
986: blk = n;
987: continue;
988: default:
989: break;
990: }
991: break;
992: }
993:
994: /* Here, n is one of Sh Ss Nm Nd It. */
1.95 schwarze 995:
1.127 schwarze 996: if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
997: (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
998: (tok != MDOC_It && n->tok == MDOC_It)))))
1.95 schwarze 999: break;
1.127 schwarze 1000:
1001: /* Item breaking an explicit block. */
1002:
1003: if (blk != NULL) {
1004: mandoc_vmsg(MANDOCERR_BLK_BROKEN,
1005: mdoc->parse, line, ppos,
1006: "It breaks %s",
1007: mdoc_macronames[blk->tok]);
1008: rew_pending(mdoc, blk);
1.128 schwarze 1009: blk = NULL;
1.127 schwarze 1010: }
1011:
1012: /* Close out prior implicit scopes. */
1013:
1.167 schwarze 1014: rew_pending(mdoc, n);
1.127 schwarze 1015: }
1016:
1017: /* Skip items outside lists. */
1018:
1019: if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.95 schwarze 1020: mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
1021: line, ppos, "It %s", buf + *pos);
1.149 schwarze 1022: roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.105 schwarze 1023: rew_elem(mdoc, MDOC_br);
1.107 schwarze 1024: return;
1.95 schwarze 1025: }
1.1 kristaps 1026: }
1027:
1.32 schwarze 1028: /*
1.68 schwarze 1029: * This routine accommodates implicitly- and explicitly-scoped
1.32 schwarze 1030: * macro openings. Implicit ones first close out prior scope
1031: * (seen above). Delay opening the head until necessary to
1032: * allow leading punctuation to print. Special consideration
1033: * for `It -column', which has phrase-part syntax instead of
1034: * regular child nodes.
1035: */
1036:
1.108 schwarze 1037: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.121 schwarze 1038: blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.34 schwarze 1039: head = body = NULL;
1.1 kristaps 1040:
1.32 schwarze 1041: /*
1.73 schwarze 1042: * Exception: Heads of `It' macros in `-diag' lists are not
1043: * parsed, even though `It' macros in general are parsed.
1044: */
1.107 schwarze 1045:
1.109 schwarze 1046: parsed = tok != MDOC_It ||
1047: mdoc->last->parent->tok != MDOC_Bl ||
1048: mdoc->last->parent->norm->Bl.type != LIST_diag;
1.73 schwarze 1049:
1050: /*
1.32 schwarze 1051: * The `Nd' macro has all arguments in its body: it's a hybrid
1052: * of block partial-explicit and full-implicit. Stupid.
1053: */
1.12 schwarze 1054:
1.106 schwarze 1055: if (tok == MDOC_Nd) {
1.146 schwarze 1056: head = roff_head_alloc(mdoc, line, ppos, tok);
1.118 schwarze 1057: rew_last(mdoc, head);
1.146 schwarze 1058: body = roff_body_alloc(mdoc, line, ppos, tok);
1.80 schwarze 1059: }
1060:
1.106 schwarze 1061: if (tok == MDOC_Bk)
1.80 schwarze 1062: mdoc->flags |= MDOC_KEEP;
1.12 schwarze 1063:
1.161 schwarze 1064: ac = ARGS_EOLN;
1.106 schwarze 1065: for (;;) {
1.161 schwarze 1066:
1067: /*
1068: * If we are right after a tab character,
1069: * do not parse the first word for macros.
1070: */
1071:
1072: if (mdoc->flags & MDOC_PHRASEQN) {
1073: mdoc->flags &= ~MDOC_PHRASEQN;
1074: mdoc->flags |= MDOC_PHRASEQF;
1075: }
1076:
1.32 schwarze 1077: la = *pos;
1.106 schwarze 1078: lac = ac;
1.76 schwarze 1079: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1080: if (ac == ARGS_EOLN) {
1.161 schwarze 1081: if (lac != ARGS_PHRASE ||
1082: ! (mdoc->flags & MDOC_PHRASEQF))
1.46 schwarze 1083: break;
1.161 schwarze 1084:
1.46 schwarze 1085: /*
1.161 schwarze 1086: * This line ends in a tab; start the next
1087: * column now, with a leading blank.
1.46 schwarze 1088: */
1.161 schwarze 1089:
1.123 schwarze 1090: if (body != NULL)
1091: rew_last(mdoc, body);
1.146 schwarze 1092: body = roff_body_alloc(mdoc, line, ppos, tok);
1.161 schwarze 1093: roff_word_alloc(mdoc, line, ppos, "\\&");
1.1 kristaps 1094: break;
1.41 schwarze 1095: }
1.161 schwarze 1096:
1.130 schwarze 1097: if (tok == MDOC_Bd || tok == MDOC_Bk) {
1098: mandoc_vmsg(MANDOCERR_ARG_EXCESS,
1099: mdoc->parse, line, la, "%s ... %s",
1100: mdoc_macronames[tok], buf + la);
1101: break;
1102: }
1.129 schwarze 1103: if (tok == MDOC_Rs) {
1104: mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
1105: line, la, "Rs %s", buf + la);
1106: break;
1107: }
1108: if (ac == ARGS_PUNCT)
1109: break;
1.41 schwarze 1110:
1.88 schwarze 1111: /*
1.46 schwarze 1112: * Emit leading punctuation (i.e., punctuation before
1.140 schwarze 1113: * the ROFFT_HEAD) for non-phrase types.
1.46 schwarze 1114: */
1.32 schwarze 1115:
1.106 schwarze 1116: if (head == NULL &&
1117: ac != ARGS_PHRASE &&
1118: ac != ARGS_QWORD &&
1119: mdoc_isdelim(p) == DELIM_OPEN) {
1120: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1121: continue;
1122: }
1123:
1.46 schwarze 1124: /* Open a head if one hasn't been opened. */
1.32 schwarze 1125:
1.106 schwarze 1126: if (head == NULL)
1.146 schwarze 1127: head = roff_head_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1128:
1.161 schwarze 1129: if (ac == ARGS_PHRASE) {
1.107 schwarze 1130:
1.46 schwarze 1131: /*
1132: * If we haven't opened a body yet, rewind the
1133: * head; if we have, rewind that instead.
1134: */
1135:
1.123 schwarze 1136: rew_last(mdoc, body == NULL ? head : body);
1.146 schwarze 1137: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1138:
1.161 schwarze 1139: /* Process to the tab or to the end of the line. */
1.46 schwarze 1140:
1.161 schwarze 1141: mdoc->flags |= MDOC_PHRASE;
1.147 schwarze 1142: parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.161 schwarze 1143: mdoc->flags &= ~MDOC_PHRASE;
1.160 schwarze 1144:
1145: /* There may have been `Ta' macros. */
1146:
1147: while (body->next != NULL)
1148: body = body->next;
1.1 kristaps 1149: continue;
1150: }
1151:
1.109 schwarze 1152: if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.107 schwarze 1153: break;
1.32 schwarze 1154: }
1.1 kristaps 1155:
1.166 schwarze 1156: if (blk->flags & NODE_VALID)
1.121 schwarze 1157: return;
1.106 schwarze 1158: if (head == NULL)
1.146 schwarze 1159: head = roff_head_alloc(mdoc, line, ppos, tok);
1.130 schwarze 1160: if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.106 schwarze 1161: append_delims(mdoc, line, pos, buf);
1.107 schwarze 1162: if (body != NULL)
1.46 schwarze 1163: goto out;
1.143 schwarze 1164: if (find_pending(mdoc, tok, line, ppos, head))
1.139 schwarze 1165: return;
1.54 schwarze 1166:
1.32 schwarze 1167: /* Close out scopes to remain in a consistent state. */
1.12 schwarze 1168:
1.123 schwarze 1169: rew_last(mdoc, head);
1.146 schwarze 1170: body = roff_body_alloc(mdoc, line, ppos, tok);
1.46 schwarze 1171: out:
1.106 schwarze 1172: if (mdoc->flags & MDOC_FREECOL) {
1.123 schwarze 1173: rew_last(mdoc, body);
1174: rew_last(mdoc, blk);
1.106 schwarze 1175: mdoc->flags &= ~MDOC_FREECOL;
1176: }
1.1 kristaps 1177: }
1178:
1.107 schwarze 1179: static void
1.1 kristaps 1180: blk_part_imp(MACRO_PROT_ARGS)
1181: {
1.43 schwarze 1182: int la, nl;
1.36 schwarze 1183: enum margserr ac;
1.1 kristaps 1184: char *p;
1.141 schwarze 1185: struct roff_node *blk; /* saved block context */
1186: struct roff_node *body; /* saved body context */
1187: struct roff_node *n;
1.1 kristaps 1188:
1.76 schwarze 1189: nl = MDOC_NEWLINE & mdoc->flags;
1.43 schwarze 1190:
1.32 schwarze 1191: /*
1192: * A macro that spans to the end of the line. This is generally
1193: * (but not necessarily) called as the first macro. The block
1194: * has a head as the immediate child, which is always empty,
1195: * followed by zero or more opening punctuation nodes, then the
1196: * body (which may be empty, depending on the macro), then zero
1197: * or more closing punctuation nodes.
1198: */
1.22 schwarze 1199:
1.106 schwarze 1200: blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.146 schwarze 1201: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1 kristaps 1202:
1.32 schwarze 1203: /*
1204: * Open the body scope "on-demand", that is, after we've
1205: * processed all our the leading delimiters (open parenthesis,
1206: * etc.).
1207: */
1.1 kristaps 1208:
1.32 schwarze 1209: for (body = NULL; ; ) {
1.22 schwarze 1210: la = *pos;
1.76 schwarze 1211: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1212: if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1 kristaps 1213: break;
1214:
1.106 schwarze 1215: if (body == NULL && ac != ARGS_QWORD &&
1216: mdoc_isdelim(p) == DELIM_OPEN) {
1217: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1 kristaps 1218: continue;
1.80 schwarze 1219: }
1.1 kristaps 1220:
1.106 schwarze 1221: if (body == NULL)
1.146 schwarze 1222: body = roff_body_alloc(mdoc, line, ppos, tok);
1.32 schwarze 1223:
1.109 schwarze 1224: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1225: break;
1.32 schwarze 1226: }
1.106 schwarze 1227: if (body == NULL)
1.146 schwarze 1228: body = roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1229:
1.143 schwarze 1230: if (find_pending(mdoc, tok, line, ppos, body))
1.139 schwarze 1231: return;
1232:
1.120 schwarze 1233: rew_last(mdoc, body);
1.106 schwarze 1234: if (nl)
1235: append_delims(mdoc, line, pos, buf);
1.122 schwarze 1236: rew_pending(mdoc, blk);
1.74 schwarze 1237:
1238: /* Move trailing .Ns out of scope. */
1239:
1240: for (n = body->child; n && n->next; n = n->next)
1241: /* Do nothing. */ ;
1.106 schwarze 1242: if (n && n->tok == MDOC_Ns)
1.76 schwarze 1243: mdoc_node_relink(mdoc, n);
1.1 kristaps 1244: }
1245:
1.107 schwarze 1246: static void
1.1 kristaps 1247: blk_part_exp(MACRO_PROT_ARGS)
1248: {
1.37 schwarze 1249: int la, nl;
1.36 schwarze 1250: enum margserr ac;
1.141 schwarze 1251: struct roff_node *head; /* keep track of head */
1.1 kristaps 1252: char *p;
1253:
1.76 schwarze 1254: nl = MDOC_NEWLINE & mdoc->flags;
1.37 schwarze 1255:
1.32 schwarze 1256: /*
1257: * The opening of an explicit macro having zero or more leading
1258: * punctuation nodes; a head with optional single element (the
1259: * case of `Eo'); and a body that may be empty.
1260: */
1.22 schwarze 1261:
1.149 schwarze 1262: roff_block_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1263: head = NULL;
1264: for (;;) {
1.22 schwarze 1265: la = *pos;
1.76 schwarze 1266: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.106 schwarze 1267: if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1 kristaps 1268: break;
1269:
1.32 schwarze 1270: /* Flush out leading punctuation. */
1271:
1.106 schwarze 1272: if (head == NULL && ac != ARGS_QWORD &&
1273: mdoc_isdelim(p) == DELIM_OPEN) {
1274: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.32 schwarze 1275: continue;
1.80 schwarze 1276: }
1.32 schwarze 1277:
1.106 schwarze 1278: if (head == NULL) {
1.146 schwarze 1279: head = roff_head_alloc(mdoc, line, ppos, tok);
1.119 schwarze 1280: if (tok == MDOC_Eo) /* Not parsed. */
1.106 schwarze 1281: dword(mdoc, line, la, p, DELIM_MAX, 0);
1.119 schwarze 1282: rew_last(mdoc, head);
1.146 schwarze 1283: roff_body_alloc(mdoc, line, ppos, tok);
1.106 schwarze 1284: if (tok == MDOC_Eo)
1.32 schwarze 1285: continue;
1286: }
1287:
1.109 schwarze 1288: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.107 schwarze 1289: break;
1.1 kristaps 1290: }
1291:
1.32 schwarze 1292: /* Clean-up to leave in a consistent state. */
1293:
1.119 schwarze 1294: if (head == NULL) {
1.146 schwarze 1295: rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1296: roff_body_alloc(mdoc, line, ppos, tok);
1.1 kristaps 1297: }
1.106 schwarze 1298: if (nl)
1299: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1300: }
1301:
1.107 schwarze 1302: static void
1.1 kristaps 1303: in_line_argn(MACRO_PROT_ARGS)
1304: {
1.36 schwarze 1305: struct mdoc_arg *arg;
1306: char *p;
1.137 schwarze 1307: enum margserr ac;
1.141 schwarze 1308: int ntok;
1.137 schwarze 1309: int state; /* arg#; -1: not yet open; -2: closed */
1310: int la, maxargs, nl;
1.1 kristaps 1311:
1.112 schwarze 1312: nl = mdoc->flags & MDOC_NEWLINE;
1.37 schwarze 1313:
1.32 schwarze 1314: /*
1315: * A line macro that has a fixed number of arguments (maxargs).
1316: * Only open the scope once the first non-leading-punctuation is
1317: * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
1318: * keep it open until the maximum number of arguments are
1319: * exhausted.
1320: */
1.1 kristaps 1321:
1322: switch (tok) {
1.88 schwarze 1323: case MDOC_Ap:
1324: case MDOC_Ns:
1325: case MDOC_Ux:
1.1 kristaps 1326: maxargs = 0;
1327: break;
1.88 schwarze 1328: case MDOC_Bx:
1.89 schwarze 1329: case MDOC_Es:
1.88 schwarze 1330: case MDOC_Xr:
1.28 schwarze 1331: maxargs = 2;
1332: break;
1.1 kristaps 1333: default:
1334: maxargs = 1;
1335: break;
1336: }
1337:
1.108 schwarze 1338: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1 kristaps 1339:
1.137 schwarze 1340: state = -1;
1.112 schwarze 1341: p = NULL;
1342: for (;;) {
1.22 schwarze 1343: la = *pos;
1.76 schwarze 1344: ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.137 schwarze 1345:
1346: if (ac == ARGS_WORD && state == -1 &&
1347: ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
1348: mdoc_isdelim(p) == DELIM_OPEN) {
1349: dword(mdoc, line, la, p, DELIM_OPEN, 0);
1350: continue;
1351: }
1352:
1353: if (state == -1 && tok != MDOC_In &&
1354: tok != MDOC_St && tok != MDOC_Xr) {
1355: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1356: state = 0;
1357: }
1358:
1.112 schwarze 1359: if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.137 schwarze 1360: if (abs(state) < 2 && tok == MDOC_Pf)
1.112 schwarze 1361: mandoc_vmsg(MANDOCERR_PF_SKIP,
1362: mdoc->parse, line, ppos, "Pf %s",
1363: p == NULL ? "at eol" : p);
1.1 kristaps 1364: break;
1.112 schwarze 1365: }
1.1 kristaps 1366:
1.137 schwarze 1367: if (state == maxargs) {
1.105 schwarze 1368: rew_elem(mdoc, tok);
1.137 schwarze 1369: state = -2;
1.32 schwarze 1370: }
1371:
1.137 schwarze 1372: ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.147 schwarze 1373: TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.36 schwarze 1374:
1.147 schwarze 1375: if (ntok != TOKEN_NONE) {
1.137 schwarze 1376: if (state >= 0) {
1.105 schwarze 1377: rew_elem(mdoc, tok);
1.137 schwarze 1378: state = -2;
1379: }
1.107 schwarze 1380: mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1 kristaps 1381: break;
1382: }
1383:
1.137 schwarze 1384: if (ac == ARGS_QWORD ||
1385: mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1386: mdoc_isdelim(p) == DELIM_NONE) {
1387: if (state == -1) {
1388: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1389: state = 1;
1390: } else if (state >= 0)
1391: state++;
1392: } else if (state >= 0) {
1.105 schwarze 1393: rew_elem(mdoc, tok);
1.137 schwarze 1394: state = -2;
1.28 schwarze 1395: }
1396:
1.106 schwarze 1397: dword(mdoc, line, la, p, DELIM_MAX,
1398: MDOC_JOIN & mdoc_macros[tok].flags);
1.1 kristaps 1399: }
1400:
1.137 schwarze 1401: if (state == -1) {
1402: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1403: line, ppos, mdoc_macronames[tok]);
1404: return;
1.112 schwarze 1405: }
1.137 schwarze 1406:
1407: if (state == 0 && tok == MDOC_Pf)
1408: append_delims(mdoc, line, pos, buf);
1409: if (state >= 0)
1.105 schwarze 1410: rew_elem(mdoc, tok);
1.106 schwarze 1411: if (nl)
1412: append_delims(mdoc, line, pos, buf);
1.1 kristaps 1413: }
1414:
1.107 schwarze 1415: static void
1.1 kristaps 1416: in_line_eoln(MACRO_PROT_ARGS)
1417: {
1.141 schwarze 1418: struct roff_node *n;
1.126 schwarze 1419: struct mdoc_arg *arg;
1.1 kristaps 1420:
1.126 schwarze 1421: if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
1422: ! (mdoc->flags & MDOC_SYNOPSIS)) {
1423: n = mdoc->last;
1.145 schwarze 1424: if (mdoc->next == ROFF_NEXT_SIBLING)
1.126 schwarze 1425: n = n->parent;
1426: if (n->tok == MDOC_Nm)
1.154 schwarze 1427: rew_last(mdoc, n->parent);
1.134 schwarze 1428: }
1429:
1.135 schwarze 1430: if (buf[*pos] == '\0' &&
1431: (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.134 schwarze 1432: mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.135 schwarze 1433: line, ppos, mdoc_macronames[tok]);
1.134 schwarze 1434: return;
1.126 schwarze 1435: }
1.53 schwarze 1436:
1.108 schwarze 1437: mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.106 schwarze 1438: mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.110 schwarze 1439: if (parse_rest(mdoc, tok, line, pos, buf))
1440: return;
1441: rew_elem(mdoc, tok);
1442: }
1443:
1444: /*
1445: * The simplest argument parser available: Parse the remaining
1446: * words until the end of the phrase or line and return 0
1447: * or until the next macro, call that macro, and return 1.
1448: */
1449: static int
1.145 schwarze 1450: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.110 schwarze 1451: {
1452: int la;
1.1 kristaps 1453:
1454: for (;;) {
1455: la = *pos;
1.109 schwarze 1456: if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.158 schwarze 1457: return 0;
1.109 schwarze 1458: if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.158 schwarze 1459: return 1;
1.1 kristaps 1460: }
1.28 schwarze 1461: }
1462:
1.107 schwarze 1463: static void
1.28 schwarze 1464: ctx_synopsis(MACRO_PROT_ARGS)
1465: {
1.37 schwarze 1466:
1.107 schwarze 1467: if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
1468: in_line(mdoc, tok, line, ppos, pos, buf);
1469: else if (tok == MDOC_Nm)
1470: blk_full(mdoc, tok, line, ppos, pos, buf);
1471: else {
1472: assert(tok == MDOC_Vt);
1473: blk_part_imp(mdoc, tok, line, ppos, pos, buf);
1474: }
1.1 kristaps 1475: }
1476:
1.17 schwarze 1477: /*
1478: * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
1479: * They're unusual because they're basically free-form text until a
1480: * macro is encountered.
1481: */
1.107 schwarze 1482: static void
1.46 schwarze 1483: phrase_ta(MACRO_PROT_ARGS)
1484: {
1.141 schwarze 1485: struct roff_node *body, *n;
1.46 schwarze 1486:
1.78 schwarze 1487: /* Make sure we are in a column list or ignore this macro. */
1.107 schwarze 1488:
1.123 schwarze 1489: body = NULL;
1490: for (n = mdoc->last; n != NULL; n = n->parent) {
1.166 schwarze 1491: if (n->flags & NODE_ENDED)
1.123 schwarze 1492: continue;
1.140 schwarze 1493: if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.123 schwarze 1494: body = n;
1.164 schwarze 1495: if (n->tok == MDOC_Bl && n->end == ENDBODY_NOT)
1.123 schwarze 1496: break;
1497: }
1498:
1.107 schwarze 1499: if (n == NULL || n->norm->Bl.type != LIST_column) {
1.94 schwarze 1500: mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.96 schwarze 1501: line, ppos, "Ta");
1.107 schwarze 1502: return;
1.78 schwarze 1503: }
1.46 schwarze 1504:
1.78 schwarze 1505: /* Advance to the next column. */
1.106 schwarze 1506:
1.123 schwarze 1507: rew_last(mdoc, body);
1.146 schwarze 1508: roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.147 schwarze 1509: parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.46 schwarze 1510: }
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