How Can I Convert Unicode Code Points to Literal Characters in Go?

Converting Unicode Code Points to Literal Characters in Go

In Go, when reading a text file containing Unicode code points using ioutil.ReadFile(), the resulting data retains the code points instead of the intended characters. To convert these code points to literal characters, we can utilize the functionality provided by the strconv package:

package main

import (
    "fmt"
    "strconv"
    "strings"
)

func main() {
    lines := []string{
        `\u0053`,
        `\u0075`,
        `\u006E`,
    }

    // Manually append quotes to allow for strconv.Unquote() usage
    for i, v := range lines {
        lines[i] = `"` + v + `"`
    }

    // Unquote the values and remove quotes
    for i, v := range lines {
        var err error
        lines[i], err = strconv.Unquote(v)
        if err != nil {
            fmt.Println(err)
        }
    }

    fmt.Println(lines)
}

Here's what the code achieves:

1. It creates a slice of strings with the Unicode code points.
2. Quotes are manually added to the strings for compatibility with strconv.Unquote().
3. It iterates over each string, unquotes it using strconv.Unquote(), and stores the result in the slice.
4. The slice is printed, showing the converted literal characters.

This approach effectively substitutes the Unicode code points with their corresponding literal characters, as desired in the original question.

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