2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Edward Wang at The University of California, Berkeley.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * @(#)parser2.c 8.1 (Berkeley) 6/6/93
37 * $FreeBSD: src/usr.bin/window/parser2.c,v 1.1.1.1.14.1 2001/05/17 09:45:00 obrien Exp $
38 * $DragonFly: src/usr.bin/window/parser2.c,v 1.2 2003/06/17 04:29:34 dillon Exp $
47 * name == 0 means we don't have a function name but
48 * want to parse the arguments anyway. flag == 0 in this case.
50 p_function(name, v, flag)
52 register struct value *v;
55 register struct lcmd_tab *c = 0;
56 register struct alias *a = 0;
57 register struct lcmd_arg *ap; /* this arg */
58 struct lcmd_arg *lp = 0; /* list arg */
60 struct value av[LCMD_NARG + 1];
61 register struct value *vp;
64 if (c = lcmd_lookup(name))
66 else if (a = alias_lookup(name))
69 p_error("%s: No such command or alias.", name);
73 for (vp = av; vp < &av[LCMD_NARG + 1]; vp++)
82 if (token == T_COMMA) /* null argument */
85 if (p_expr0(&t, flag) < 0)
87 if (t.v_type == V_ERR)
90 if (token != T_ASSIGN) {
92 c != 0 && (ap = lp) == 0 &&
93 (ap = c->lc_arg + i)->arg_name == 0) {
94 p_error("%s: Too many arguments.", name);
100 if (p_convstr(&t) < 0)
102 tmp = t.v_type == V_STR ? t.v_str : 0;
104 if (p_expr(&t, flag) < 0) {
110 if (t.v_type == V_ERR)
115 p_error("%s: Bad alias syntax.", name);
118 for (ap = c->lc_arg, vp = av;
119 ap != 0 && ap->arg_name != 0 &&
120 (*ap->arg_name == '\0' ||
121 !str_match(tmp, ap->arg_name,
125 if (ap == 0 || ap->arg_name == 0) {
126 p_error("%s: Unknown argument \"%s\".",
137 if (ap->arg_flags & ARG_LIST) {
141 if (vp->v_type != V_ERR) {
143 p_error("%s: Argument %d (%s) duplicated.",
147 p_error("%s: Argument %d duplicated.",
151 } else if (t.v_type == V_ERR) {
153 } else if ((ap->arg_flags&ARG_TYPE) == ARG_NUM &&
155 (ap->arg_flags&ARG_TYPE) == ARG_STR &&
158 p_error("%s: Argument %d (%s) type mismatch.",
162 p_error("%s: Argument %d type mismatch.",
172 if (token == T_COMMA)
180 else if (token != T_EOL && token != T_EOF)
181 flag = 0; /* look for legal follow set */
185 (*c->lc_func)(v, av);
187 if (a->a_flags & A_INUSE)
188 p_error("%s: Recursive alias.", a->a_name);
190 a->a_flags |= A_INUSE;
191 if (dolongcmd(a->a_buf, av, i) < 0)
193 a->a_flags &= ~A_INUSE;
200 for (vp = av; vp < &av[LCMD_NARG]; vp++)
204 for (vp = av; vp < &av[LCMD_NARG]; vp++)
209 p_assign(name, v, flag)
216 if (p_expr(v, flag) < 0) {
223 if (flag && var_set(name, v) == 0) {