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authorDenys Vlasenko2017-08-11 17:21:14 +0200
committerDenys Vlasenko2017-08-11 17:21:14 +0200
commit419db0391e47444dd12fb052613fd415694d04f0 (patch)
tree0b989526666cd6150b7bae6151f9273c4a5db487 /shell/hush_test/hush-getopts/getopt_silent.tests
parent129e1ce72c28ec14aee459cceffc25ed9d5cae85 (diff)
downloadbusybox-419db0391e47444dd12fb052613fd415694d04f0.zip
busybox-419db0391e47444dd12fb052613fd415694d04f0.tar.gz
hush: implement "silent" optstrings of ":opts"
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell/hush_test/hush-getopts/getopt_silent.tests')
-rwxr-xr-xshell/hush_test/hush-getopts/getopt_silent.tests23
1 files changed, 23 insertions, 0 deletions
diff --git a/shell/hush_test/hush-getopts/getopt_silent.tests b/shell/hush_test/hush-getopts/getopt_silent.tests
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+# Open Group Base Specifications Issue 7:
+# """
+# If an unknown option is met, VAR shall be set to "?". In this case,
+# if the first character in optstring is ":", OPTARG shall be set
+# to the option character found, but no output shall be written
+# to standard error; otherwise, the shell variable OPTARG shall be
+# unset and a diagnostic message shall be written to standard error."
+# ...
+# If an option-argument is missing:
+# If the first character of optstring is ":", VAR shall be set to ":"
+# and OPTARG shall be set to the option character found.
+# """
+
+echo "*** optstring:':ac' args:-a -b -c"
+getopts ":ac" var -a -b -c; echo "1 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
+getopts ":ac" var -a -b -c; echo "2 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
+getopts ":ac" var -a -b -c; echo "3 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
+getopts ":ac" var -a -b -c; echo "4 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"
+# Previous line should result in "rc:1", which is normally treated
+# in getopts loops as exit condition.
+# Nevertheless, let's verify that calling it yet another time doesn't do
+# anything weird:
+getopts ":ac" var -a -b -c; echo "5 rc:$? var:'$var' OPTIND:$OPTIND OPTARG:'$OPTARG'"