Use the strconv.QuoteRuneToGraphic function in golang to convert characters to Unicode code representation

Use the strconv.QuoteRuneToGraphic function in golang to convert characters into Unicode code representation

In golang programming, sometimes we need to convert characters into Unicode code representation. golang provides the strconv package, in which the QuoteRuneToGraphic function can be used to convert characters into Unicode code representation.

Next, I will show you how to use this function.

First, let us create a simple golang program to demonstrate the use of QuoteRuneToGraphic function.

package main

import (
    "fmt"
    "strconv"
)

func main() {
    char := '中'
    unicode := strconv.QuoteRuneToGraphic(char)
    fmt.Println("Character:", char)
    fmt.Println("Unicode representation:", unicode)
}

In the above code, we first define a variable named char, which is a Unicode character '中'. Next, we use the strconv.QuoteRuneToGraphic function to convert this character to Unicode code representation. Finally, we output the character and its Unicode representation.

Run this program, you will see the following output:

Character: 中
Unicode representation: "u4E2D"

As you can see from the output, the Unicode representation of the character '中' is "u4E2D".

It should be noted that this function returns a string with Unicode escape sequence. If we need to obtain the pure Unicode code value, we can remove the escape sequence in the returned string.

The following is the modified code:

package main

import (
    "fmt"
    "strconv"
)

func main() {
    char := '中'
    unicode := strconv.QuoteRuneToGraphic(char)[1 : len(strconv.QuoteRuneToGraphic(char))-1]
    fmt.Println("Character:", char)
    fmt.Println("Unicode representation:", unicode)
}

Run this new program, you will get the following output:

Character: 中
Unicode representation: 4E2D

As you can see from the output, now we get Is the pure Unicode code value "4E2D" of the character '中'.

By using the strconv.QuoteRuneToGraphic function in golang, we can easily convert characters into Unicode code representation. This is useful in certain situations, such as when working with multilingual text or when doing character encoding related operations.

I hope this article will help you understand how to use the strconv.QuoteRuneToGraphic function in golang.

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