/* Copyright NetFoundry Inc. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at https://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package stringz func EqualSlices(a []string, b []string) bool { if len(a) != len(b) { return false } for idx, aVal := range a { if aVal != b[idx] { return false } } return true } func Contains(a []string, val string) bool { _, found := FirstIndexOf(a, val) return found } func Remove(a []string, val string) []string { var result []string for _, next := range a { if next != val { result = append(result, next) } } return result } func ContainsAll(a []string, values ...string) bool { for _, val := range values { if !Contains(a, val) { return false } } return true } func ContainsAny(a []string, values ...string) bool { for _, val := range values { if Contains(a, val) { return true } } return false } func FirstIndexOf(a []string, val string) (int, bool) { for idx, s := range a { if s == val { return idx, true } } return -1, false } func Difference(a, b []string) []string { mb := map[string]bool{} for _, x := range b { mb[x] = true } var ab []string for _, x := range a { if _, ok := mb[x]; !ok { ab = append(ab, x) } } return ab } func ToStringSlice(a [][]byte) []string { result := make([]string, len(a)) for i := 0; i < len(a); i++ { result[i] = string(a[i]) } return result } func OrEmpty(val *string) string { if val == nil { return "" } return *val } func Permutations(v []string, f func([]string)) { PermutationWith([]string{}, v, f) } func PermutationWith(base, v []string, f func([]string)) { for i := 0; i < len(v); i++ { var result []string if len(base) > 0 { result = append(result, base...) } result = append(result, v[i]) f(result) PermutationWith(result, v[i+1:], f) } } func SetToSlice(values map[string]struct{}) []string { var result []string for val := range values { result = append(result, val) } return result } func SliceToSet(values []string) map[string]struct{} { result := map[string]struct{}{} for _, val := range values { result[val] = struct{}{} } return result }