The problem that I met is that
Given a string contains several special substrings like:
"\\u0301" "\\b" "\\t",..etc
Please convert all special strings above into "\u0301","\b","\t", ..etc
Note that if just removing a backslash here,
you will get a plaintext of "\u0301",
instead an accent mark of Unicode.
A one-by-one solution is to replace each special string
str = strings.Replace(str, "\\u0301","\u0301", -1)
Is a general solution to all escape character codes?
If you need to convert a byte sequence that contains escaped Unicode sequences and control sequences to a Unicode string, then you can use strconv.Unquote function.
To do this, convert the bytes to a string, escape the double-quote and newline characters, and add double-quote characters at the beginning and end of this string.
package main
import (
"fmt"
"strconv"
"strings"
)
func main() {
b := []byte{65, 92, 117, 48, 51, 48, 49, 9, 88, 10, 34, 65, 34}
// the same as
// b := []byte("A\\u0301\tX\n\"A\"")
// convert to string
s := string(b)
fmt.Println(s)
fmt.Println("=========")
// escape double quotes
s = strings.ReplaceAll(s, "\"", "\\\"")
// escape newlines
s = strings.ReplaceAll(s, "\n", "\\n")
r, err := strconv.Unquote(`"` + s + `"`)
if err != nil {
panic(err)
}
fmt.Println(r)
fmt.Println("=========")
}
Output:
A\u0301 X
"A"
=========
Á X
"A"
=========