This file is test.def, from which is created test.c.
It implements the builtin "test" in Bash.
-Copyright (C) 1987, 1989, 1991 Free Software Foundation, Inc.
+Copyright (C) 1987-2010 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 1, or (at your option) any later
-version.
+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.
+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; see the file COPYING. If not, write to the Free Software
-Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+You should have received a copy of the GNU General Public License
+along with Bash. If not, see <http://www.gnu.org/licenses/>.
$PRODUCES test.c
$BUILTIN test
$FUNCTION test_builtin
$SHORT_DOC test [expr]
-Exits with a status of 0 (trueness) or 1 (falseness) depending on
+Evaluate conditional expression.
+
+Exits with a status of 0 (true) or 1 (false) depending on
the evaluation of EXPR. Expressions may be unary or binary. Unary
expressions are often used to examine the status of a file. There
-are string operators as well, and numeric comparison operators.
+are string operators and numeric comparison operators as well.
+
+The behavior of test depends on the number of arguments. Read the
+bash manual page for the complete specification.
File operators:
- -b FILE True if file is block special.
- -c FILE True if file is character special.
- -d FILE True if file is a directory.
- -e FILE True if file exists.
- -f FILE True if file exists and is a regular file.
- -g FILE True if file is set-group-id.
- -h FILE True if file is a symbolic link. Use "-L".
- -L FILE True if file is a symbolic link.
- -k FILE True if file has its "sticky" bit set.
- -p FILE True if file is a named pipe.
- -r FILE True if file is readable by you.
- -s FILE True if file is not empty.
- -S FILE True if file is a socket.
- -t FD True if FD is opened on a terminal.
- -u FILE True if the file is set-user-id.
- -w FILE True if the file is writable by you.
- -x FILE True if the file is executable by you.
- -O FILE True if the file is effectively owned by you.
- -G FILE True if the file is effectively owned by your group.
-
- FILE1 -nt FILE2 True if file1 is newer than (according to
- modification date) file2.
+ -a FILE True if file exists.
+ -b FILE True if file is block special.
+ -c FILE True if file is character special.
+ -d FILE True if file is a directory.
+ -e FILE True if file exists.
+ -f FILE True if file exists and is a regular file.
+ -g FILE True if file is set-group-id.
+ -h FILE True if file is a symbolic link.
+ -L FILE True if file is a symbolic link.
+ -k FILE True if file has its `sticky' bit set.
+ -p FILE True if file is a named pipe.
+ -r FILE True if file is readable by you.
+ -s FILE True if file exists and is not empty.
+ -S FILE True if file is a socket.
+ -t FD True if FD is opened on a terminal.
+ -u FILE True if the file is set-user-id.
+ -w FILE True if the file is writable by you.
+ -x FILE True if the file is executable by you.
+ -O FILE True if the file is effectively owned by you.
+ -G FILE True if the file is effectively owned by your group.
+ -N FILE True if the file has been modified since it was last read.
+
+ FILE1 -nt FILE2 True if file1 is newer than file2 (according to
+ modification date).
FILE1 -ot FILE2 True if file1 is older than file2.
String operators:
- -z STRING True if string is empty.
+ -z STRING True if string is empty.
- -n STRING
- or STRING True if string is not empty.
+ -n STRING
+ STRING True if string is not empty.
- STRING1 = STRING2
- True if the strings are equal.
- STRING1 != STRING2
- True if the strings are not equal.
+ STRING1 = STRING2
+ True if the strings are equal.
+ STRING1 != STRING2
+ True if the strings are not equal.
+ STRING1 < STRING2
+ True if STRING1 sorts before STRING2 lexicographically.
+ STRING1 > STRING2
+ True if STRING1 sorts after STRING2 lexicographically.
Other operators:
- ! EXPR True if expr is false.
- EXPR1 -a EXPR2 True if both expr1 AND expr2 are true.
- EXPR1 -o EXPR2 True if either expr1 OR expr2 is true.
+ -o OPTION True if the shell option OPTION is enabled.
+ -v VAR True if the shell variable VAR is set
+ -R VAR True if the shell variable VAR is set and is a name reference.
+ ! EXPR True if expr is false.
+ EXPR1 -a EXPR2 True if both expr1 AND expr2 are true.
+ EXPR1 -o EXPR2 True if either expr1 OR expr2 is true.
- arg1 OP arg2 Arithmetic tests. OP is one of -eq, -ne,
- -lt, -le, -gt, or -ge.
+ arg1 OP arg2 Arithmetic tests. OP is one of -eq, -ne,
+ -lt, -le, -gt, or -ge.
Arithmetic binary operators return true if ARG1 is equal, not-equal,
less-than, less-than-or-equal, greater-than, or greater-than-or-equal
than ARG2.
+
+Exit Status:
+Returns success if EXPR evaluates to true; fails if EXPR evaluates to
+false or an invalid argument is given.
$END
$BUILTIN [
$DOCNAME test_bracket
$FUNCTION test_builtin
$SHORT_DOC [ arg... ]
-This is a synonym for the "test" shell builtin, excepting that the
-last argument must be literally `]', to match the `[' which invoked
-the test.
+Evaluate conditional expression.
+
+This is a synonym for the "test" builtin, but the last argument must
+be a literal `]', to match the opening `['.
$END
-#if defined (HAVE_STRING_H)
-# include <string.h>
-#else /* !HAVE_STRING_H */
-# include <strings.h>
-#endif /* !HAVE_STRING_H */
+#include <config.h>
+
+#if defined (HAVE_UNISTD_H)
+# ifdef _MINIX
+# include <sys/types.h>
+# endif
+# include <unistd.h>
+#endif
+
+#include "../bashansi.h"
+#include "../bashintl.h"
#include "../shell.h"
+#include "../test.h"
+#include "common.h"
+
extern char *this_command_name;
/* TEST/[ builtin. */
{
char **argv;
int argc, result;
- WORD_LIST *t = list;
/* We let Matthew Bradburn and Kevin Braunsdorf's code do the
actual test command. So turn the list of args into an array
- of strings, since that is what his code wants. */
- if (!list)
+ of strings, since that is what their code wants. */
+ if (list == 0)
{
if (this_command_name[0] == '[' && !this_command_name[1])
- builtin_error ("missing `]'");
+ {
+ builtin_error (_("missing `]'"));
+ return (EX_BADUSAGE);
+ }
return (EXECUTION_FAILURE);
}
- /* Get the length of the argument list. */
- for (argc = 0; t; t = t->next, argc++);
-
- /* Account for argv[0] being a command name. This makes our life easier. */
- argc++;
- argv = (char **)xmalloc ((1 + argc) * sizeof (char *));
- argv[argc] = (char *)NULL;
-
- /* this_command_name is the name of the command that invoked this
- function. So you can't call test_builtin () directly from
- within this code, there are too many things to worry about. */
- argv[0] = savestring (this_command_name);
-
- for (t = list, argc = 1; t; t = t->next, argc++)
- argv[argc] = savestring (t->word->word);
-
+ argv = make_builtin_argv (list, &argc);
result = test_command (argc, argv);
- free_array (argv);
+ free ((char *)argv);
+
return (result);
}
projects / platform / upstream / bash.git / blobdiff