71 lines
1.9 KiB
Modula-2
71 lines
1.9 KiB
Modula-2
This file is return.def, from which is created return.c.
|
|
It implements the builtin "return" in Bash.
|
|
|
|
Copyright (C) 1987-2015 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU Bash, the Bourne Again SHell.
|
|
|
|
Bash is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Bash is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Bash. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
$PRODUCES return.c
|
|
|
|
$BUILTIN return
|
|
|
|
$FUNCTION return_builtin
|
|
$SHORT_DOC return [n]
|
|
Return from a shell function.
|
|
|
|
Causes a function or sourced script to exit with the return value
|
|
specified by N. If N is omitted, the return status is that of the
|
|
last command executed within the function or script.
|
|
|
|
Exit Status:
|
|
Returns N, or failure if the shell is not executing a function or script.
|
|
$END
|
|
|
|
#include <config.h>
|
|
|
|
#if defined (HAVE_UNISTD_H)
|
|
# ifdef _MINIX
|
|
# include <sys/types.h>
|
|
# endif
|
|
# include <unistd.h>
|
|
#endif
|
|
|
|
#include "../bashintl.h"
|
|
|
|
#include "../shell.h"
|
|
#include "../execute_cmd.h"
|
|
#include "common.h"
|
|
#include "bashgetopt.h"
|
|
|
|
/* If we are executing a user-defined function then exit with the value
|
|
specified as an argument. if no argument is given, then the last
|
|
exit status is used. */
|
|
int
|
|
return_builtin (list)
|
|
WORD_LIST *list;
|
|
{
|
|
CHECK_HELPOPT (list);
|
|
|
|
return_catch_value = get_exitstat (list);
|
|
|
|
if (return_catch_flag)
|
|
sh_longjmp (return_catch, 1);
|
|
else
|
|
{
|
|
builtin_error (_("can only `return' from a function or sourced script"));
|
|
return (EX_USAGE);
|
|
}
|
|
}
|