// Copyright 2017 The casbin Authors. All Rights Reserved. // // 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 // // http://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 util import ( "sort" "strings" ) // EscapeAssertion escapes the dots in the assertion, because the expression evaluation doesn't support such variable names. func EscapeAssertion(s string) string { s = strings.Replace(s, "r.", "r_", -1) s = strings.Replace(s, "p.", "p_", -1) return s } // RemoveComments removes the comments starting with # in the text. func RemoveComments(s string) string { pos := strings.Index(s, "#") if pos == -1 { return s } return strings.TrimSpace(s[0:pos]) } // ArrayEquals determines whether two string arrays are identical. func ArrayEquals(a []string, b []string) bool { if len(a) != len(b) { return false } for i, v := range a { if v != b[i] { return false } } return true } // Array2DEquals determines whether two 2-dimensional string arrays are identical. func Array2DEquals(a [][]string, b [][]string) bool { if len(a) != len(b) { return false } for i, v := range a { if !ArrayEquals(v, b[i]) { return false } } return true } // ArrayRemoveDuplicates removes any duplicated elements in a string array. func ArrayRemoveDuplicates(s *[]string) { found := make(map[string]bool) j := 0 for i, x := range *s { if !found[x] { found[x] = true (*s)[j] = (*s)[i] j++ } } *s = (*s)[:j] } // ArrayToString gets a printable string for a string array. func ArrayToString(s []string) string { return strings.Join(s, ", ") } // ParamsToString gets a printable string for variable number of parameters. func ParamsToString(s ...string) string { return strings.Join(s, ", ") } // SetEquals determines whether two string sets are identical. func SetEquals(a []string, b []string) bool { if len(a) != len(b) { return false } sort.Strings(a) sort.Strings(b) for i, v := range a { if v != b[i] { return false } } return true }