0d9ec55e02
shell function and alias lookup. The -p option has been implemented, the UPE -v and -V options have not. The old `command' command has been renamed to `builtin'.
75 lines
3.0 KiB
C
75 lines
3.0 KiB
C
/*-
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Kenneth Almquist.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)eval.h 8.2 (Berkeley) 5/4/95
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* $FreeBSD$
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*/
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extern char *commandname; /* currently executing command */
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extern int exitstatus; /* exit status of last command */
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extern struct strlist *cmdenviron; /* environment for builtin command */
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struct backcmd { /* result of evalbackcmd */
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int fd; /* file descriptor to read from */
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char *buf; /* buffer */
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int nleft; /* number of chars in buffer */
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struct job *jp; /* job structure for command */
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};
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int evalcmd(int, char **);
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void evalstring(char *);
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union node; /* BLETCH for ansi C */
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void evaltree(union node *, int);
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void evalbackcmd(union node *, struct backcmd *);
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int bltincmd(int, char **);
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int breakcmd(int, char **);
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int returncmd(int, char **);
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int falsecmd(int, char **);
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int truecmd(int, char **);
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int execcmd(int, char **);
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int commandcmd(int, char **);
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/* in_function returns nonzero if we are currently evaluating a function */
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#define in_function() funcnest
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extern int funcnest;
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extern int evalskip;
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/* reasons for skipping commands (see comment on breakcmd routine) */
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#define SKIPBREAK 1
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#define SKIPCONT 2
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#define SKIPFUNC 3
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#define SKIPFILE 4
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