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) {