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