Rev 2714 | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 2714 | Rev 3241 | ||
---|---|---|---|
1 | /* $NetBSD: eval.h,v 1.10 2000/01/27 23:39:40 christos Exp $ */ |
1 | /* $NetBSD: eval.h,v 1.10 2000/01/27 23:39:40 christos Exp $ */ |
2 | 2 | ||
3 | /*- |
3 | /*- |
4 | * Copyright (c) 1991, 1993 |
4 | * Copyright (c) 1991, 1993 |
5 | * The Regents of the University of California. All rights reserved. |
5 | * The Regents of the University of California. All rights reserved. |
6 | * |
6 | * |
7 | * This code is derived from software contributed to Berkeley by |
7 | * This code is derived from software contributed to Berkeley by |
8 | * Kenneth Almquist. |
8 | * Kenneth Almquist. |
9 | * |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
17 | * documentation and/or other materials provided with the distribution. |
18 | * 3. All advertising materials mentioning features or use of this software |
18 | * 3. All advertising materials mentioning features or use of this software |
19 | * must display the following acknowledgement: |
19 | * must display the following acknowledgement: |
20 | * This product includes software developed by the University of |
20 | * This product includes software developed by the University of |
21 | * California, Berkeley and its contributors. |
21 | * California, Berkeley and its contributors. |
22 | * 4. Neither the name of the University nor the names of its contributors |
22 | * 4. Neither the name of the University nor the names of its contributors |
23 | * may be used to endorse or promote products derived from this software |
23 | * may be used to endorse or promote products derived from this software |
24 | * without specific prior written permission. |
24 | * without specific prior written permission. |
25 | * |
25 | * |
26 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
26 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
27 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
27 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
28 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
28 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
29 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
29 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
30 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
30 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
31 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
31 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
32 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
32 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
33 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
33 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
34 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
34 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
35 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
35 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
36 | * SUCH DAMAGE. |
36 | * SUCH DAMAGE. |
37 | * |
37 | * |
38 | * @(#)eval.h 8.2 (Berkeley) 5/4/95 |
38 | * @(#)eval.h 8.2 (Berkeley) 5/4/95 |
39 | */ |
39 | */ |
40 | 40 | ||
41 | extern char *commandname; /* currently executing command */ |
41 | extern char *commandname; /* currently executing command */ |
42 | extern int exitstatus; /* exit status of last command */ |
42 | extern int exitstatus; /* exit status of last command */ |
43 | extern struct strlist *cmdenviron; /* environment for builtin command */ |
43 | extern struct strlist *cmdenviron; /* environment for builtin command */ |
44 | 44 | ||
45 | 45 | ||
46 | struct backcmd { /* result of evalbackcmd */ |
46 | struct backcmd { /* result of evalbackcmd */ |
47 | int fd; /* file descriptor to read from */ |
47 | int fd; /* file descriptor to read from */ |
48 | char *buf; /* buffer */ |
48 | char *buf; /* buffer */ |
49 | int nleft; /* number of chars in buffer */ |
49 | int nleft; /* number of chars in buffer */ |
50 | struct job *jp; /* job structure for command */ |
50 | struct job *jp; /* job structure for command */ |
51 | }; |
51 | }; |
52 | 52 | ||
53 | int evalcmd (int, char **); |
53 | int evalcmd (int, char **); |
54 | void evalstring (char *, int); |
54 | void evalstring (char *, int); |
55 | union node; /* BLETCH for ansi C */ |
55 | union node; /* BLETCH for ansi C */ |
56 | void evaltree (union node *, int); |
56 | void evaltree (union node *, int); |
57 | void evalbackcmd (union node *, struct backcmd *); |
57 | void evalbackcmd (union node *, struct backcmd *); |
58 | int bltincmd (int, char **); |
58 | int bltincmd (int, char **); |
59 | int breakcmd (int, char **); |
59 | int breakcmd (int, char **); |
60 | int returncmd (int, char **); |
60 | int returncmd (int, char **); |
61 | int falsecmd (int, char **); |
61 | int falsecmd (int, char **); |
62 | int truecmd (int, char **); |
62 | int truecmd (int, char **); |
63 | int execcmd (int, char **); |
63 | int execcmd (int, char **); |
64 | int is_special_builtin (const char *); |
64 | int is_special_builtin (const char *); |
65 | 65 | ||
66 | /* in_function returns nonzero if we are currently evaluating a function */ |
66 | /* in_function returns nonzero if we are currently evaluating a function */ |
67 | #define in_function() funcnest |
67 | #define in_function() funcnest |
68 | extern int funcnest; |
68 | extern int funcnest; |
69 | extern int evalskip; |
69 | extern int evalskip; |
70 | 70 | ||
71 | /* reasons for skipping commands (see comment on breakcmd routine) */ |
71 | /* reasons for skipping commands (see comment on breakcmd routine) */ |
72 | #define SKIPBREAK 1 |
72 | #define SKIPBREAK 1 |
73 | #define SKIPCONT 2 |
73 | #define SKIPCONT 2 |
74 | #define SKIPFUNC 3 |
74 | #define SKIPFUNC 3 |
75 | #define SKIPFILE 4 |
75 | #define SKIPFILE 4 |
76 | 76 |