/
quote.go
55 lines (50 loc) · 1.81 KB
/
quote.go
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// Copyright (c) 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package internal
import "strconv"
// UnquoteSingleQuoted unquotes a slice of bytes representing a single quoted
// string.
//
// UnquoteSingleQuoted([]byte("'foo'")) == "foo"
func UnquoteSingleQuoted(in []byte) (string, error) {
out := string(swapQuotes(in))
str, err := strconv.Unquote(out)
if err != nil {
return str, err
}
// s/'/"/g, s/"/'/g
out = string(swapQuotes([]byte(str)))
return out, nil
}
// swapQuotes replaces all single quotes with double quotes and all double
// quotes with single quotes.
func swapQuotes(in []byte) []byte {
// s/'/"/g, s/"/'/g
out := make([]byte, len(in))
for i, c := range in {
if c == '"' {
c = '\''
} else if c == '\'' {
c = '"'
}
out[i] = c
}
return out
}