golang txt to epub

Golang language is a high-performance, reliable and easy-to-use programming language. It can quickly handle large amounts of data and concurrent tasks, so it performs well in handling large-scale TXT to EPUB conversion work.

In this article, we will introduce how to use Golang language to convert TXT files to EPUB e-book format. First, we need to clarify what EPUB format and TXT format are.

What is EPUB?

EPUB is an open e-book format that can be used to create e-books and digital publications. Unlike other e-book formats, EPUB uses web technologies such as HTML and CSS to create digital books, which makes it available on multiple platforms.

The EPUB format has the following advantages:

• It can be read by a variety of devices, such as iPad, Kindle, Nook, Sony Reader, etc.
• It supports font adjustment, table of contents, bookmarks and other functions.
• It supports multiple languages ​​and international character sets.

What is TXT?

Simply put, TXT is a plain text file format, which only contains characters and spaces, and does not contain any formatting, color or other typesetting elements. It is usually used to store unformatted text information, such as articles, logs, program codes, etc. Compared with multimedia formats such as pictures, audio, and videos, the file size of TXT format is smaller and easier to manage and transmit.

Next, we will introduce how to use Golang language to convert TXT files to EPUB format.

Step 1: Install EPUB library

First, we need to install a Golang EPUB library, which allows us to more easily convert TXT format text files into EPUB format e-books.

Enter the following command in the terminal:

go get github.com/bmaupin/go-epub

This will download and install the EPUB library from github.

Step 2: Read the contents of the TXT file

The next step is to read the contents of the TXT file. We will use Golang’s ioutil package to read the contents of the TXT file. In the code below, we use ioutil.ReadFile function to read all the contents from the file and store it in the rawText variable:

package main

import (
    "fmt"
    "io/ioutil"
)

func main() {
    rawText, err := ioutil.ReadFile("test.txt")
    if err != nil {
        fmt.Println(err)
    }
    fmt.Println(string(rawText))
}

Step 3: Convert TXT content to EPUB format

Next, we need to use the EPUB library to convert the contents of the TXT file into an e-book in EPUB format. In the code below, we create a new EPUB book, add a new chapter using the AddSection function, and finally save the book as an EPUB format file.

package main

import (
    "fmt"
    "io/ioutil"
    "log"

    "github.com/bmaupin/go-epub"
)

func main() {
    book := epub.NewEpub("The Adventures of Tom Sawyer")

    // Add a section
    rawText, err := ioutil.ReadFile("test.txt")
    if err != nil {
        log.Fatal(err)
    }
    book.AddSection(string(rawText), "Chapter 1", "Introduction")

    // Write the book
    err = book.Write("tom_sawyer.epub")
    if err != nil {
        log.Fatal(err)
    }

    fmt.Println("EPUB file written to tom_sawyer.epub")
}

This will create a new e-book called "The Adventures of Tom Sawyer" with the content read from the "test.txt" file added to its first chapter.

Step 4: Perform necessary formatting

Some TXT files may require necessary formatting to render them more appropriately after conversion to EPUB format. Formatting can include adding titles, text formatting, and more.

The following code demonstrates how to perform the necessary formatting of TXT content. It uses the strings package to replace line breaks with HTML paragraph tags and adds a header to the beginning of the TXT content.

package main

import (
    "fmt"
    "io/ioutil"
    "log"
    "strings"

    "github.com/bmaupin/go-epub"
)

func main() {
    book := epub.NewEpub("The Adventures of Tom Sawyer")

    // Add a section
    rawText, err := ioutil.ReadFile("test.txt")
    if err != nil {
        log.Fatal(err)
    }

    // Format the text
    formattedText := strings.ReplaceAll(string(rawText), "
", "<p>")
    formattedText = "<h1>Chapter 1</h1>" + formattedText

    book.AddSection(formattedText, "Chapter 1", "Introduction")

    // Write the book
    err = book.Write("tom_sawyer.epub")
    if err != nil {
        log.Fatal(err)
    }

    fmt.Println("EPUB file written to tom_sawyer.epub")
}

In this way, we have successfully used Golang to convert TXT files into EPUB format!

Conclusion

Golang language, as a high-performance, reliable and easy-to-use programming language, has good processing performance for the conversion of TXT format to EPUB format. By using Golang's EPUB library and related functions, we can easily perform format conversion and necessary formatting. I hope this article can be helpful to developers who use Golang to convert TXT to EPUB format.

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