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package boolean
import (
"strings"
)
// IsSingleFlagPresent checks presence of selected flag and whether it was used once.
func IsSingleFlagPresent(flag string, params []string) bool {
found := filterFlags(params, flag)
if len(found) != 1 {
return false
}
return true
}
// IsFlagAbsent checks absence of selected flag in parameters.
func IsFlagAbsent(flag string, params []string) bool {
found := filterFlags(params, flag)
if len(found) != 0 {
return false
}
return true
}
// filterFlags returns all occurrences of selected flag.
func filterFlags(strs []string, flag string) []string {
var filtered []string
for _, str := range strs {
if strings.HasPrefix(str, flag) {
filtered = append(filtered, str)
}
}
return filtered
}
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