Import of https://github.com/ciena/voltctl at commit 40d61fbf3f910ed4017cf67c9c79e8e1f82a33a5
Change-Id: I8464c59e60d76cb8612891db3303878975b5416c
diff --git a/vendor/github.com/jessevdk/go-flags/optstyle_other.go b/vendor/github.com/jessevdk/go-flags/optstyle_other.go
new file mode 100644
index 0000000..56dfdae
--- /dev/null
+++ b/vendor/github.com/jessevdk/go-flags/optstyle_other.go
@@ -0,0 +1,67 @@
+// +build !windows forceposix
+
+package flags
+
+import (
+ "strings"
+)
+
+const (
+ defaultShortOptDelimiter = '-'
+ defaultLongOptDelimiter = "--"
+ defaultNameArgDelimiter = '='
+)
+
+func argumentStartsOption(arg string) bool {
+ return len(arg) > 0 && arg[0] == '-'
+}
+
+func argumentIsOption(arg string) bool {
+ if len(arg) > 1 && arg[0] == '-' && arg[1] != '-' {
+ return true
+ }
+
+ if len(arg) > 2 && arg[0] == '-' && arg[1] == '-' && arg[2] != '-' {
+ return true
+ }
+
+ return false
+}
+
+// stripOptionPrefix returns the option without the prefix and whether or
+// not the option is a long option or not.
+func stripOptionPrefix(optname string) (prefix string, name string, islong bool) {
+ if strings.HasPrefix(optname, "--") {
+ return "--", optname[2:], true
+ } else if strings.HasPrefix(optname, "-") {
+ return "-", optname[1:], false
+ }
+
+ return "", optname, false
+}
+
+// splitOption attempts to split the passed option into a name and an argument.
+// When there is no argument specified, nil will be returned for it.
+func splitOption(prefix string, option string, islong bool) (string, string, *string) {
+ pos := strings.Index(option, "=")
+
+ if (islong && pos >= 0) || (!islong && pos == 1) {
+ rest := option[pos+1:]
+ return option[:pos], "=", &rest
+ }
+
+ return option, "", nil
+}
+
+// addHelpGroup adds a new group that contains default help parameters.
+func (c *Command) addHelpGroup(showHelp func() error) *Group {
+ var help struct {
+ ShowHelp func() error `short:"h" long:"help" description:"Show this help message"`
+ }
+
+ help.ShowHelp = showHelp
+ ret, _ := c.AddGroup("Help Options", "", &help)
+ ret.isBuiltinHelp = true
+
+ return ret
+}