How to convert txt file to HTML format using Python

In actual text processing, it is often necessary to convert plain text files into HTML format to achieve better display effects and readability. This article will introduce how to use Python to convert txt files to HTML format through Python language.

First, we need to understand HTML. HTML (Hypertext Markup Language) is a standard language for creating web pages. It uses markup to describe the content and layout of a web page, including elements such as text, images, and links. In HTML, tags are identified using angle brackets.

Next, we need to understand the text processing module in Python. There are many text processing modules in Python, among which the more commonly used ones are re, nltk and BeautifulSoup. In this article, we will use the regular expression module (re) and the string formatting module (string) in the standard library to convert txt files to HTML files.

Step 1: Read the txt file

In Python, you can use the open() function to open the file and the read() method to read the contents of the file. The following is a sample code for reading a txt file:

with open("sample.txt", "r", encoding="utf-8") as f:
    text = f.read()

We store the read content in the variable text for subsequent operations.

Step 2: Process the text content

The Txt file may contain many useless characters and formats, such as tabs, line breaks, etc., and the text content needs to be processed . We can do this using the regular expression module (re) in Python.

First, we can use the re.sub() method to replace tabs with spaces. The code is as follows:

text = re.sub(r'\t', ' ', text)

Then, we can use the re.sub() method to replace consecutive multiple Replace spaces with a single space:

text = re.sub(r' {2,}', ' ', text)

Next, we can use the string module's string formatting method to add text content to the HTML code, while using markup to describe the style and structure of the text. For example, we can convert text content into HTML headings using tags:

header = "<h1>{}</h1>".format(text)

Similarly, we can convert text content into HTML paragraphs using tags:

paragraph = "<p>{}</p>".format(text)

In this way, We can convert text content into HTML format.

Step 3: Write the processed text into the HTML file

The last step is to write the processed text into the HTML file. We can use the open() function to open a new file, and use the write() method to write HTML code to the file:

with open("output.html", "w", encoding="utf-8") as f:
    f.write(html_code)

The complete code is as follows:

import re

with open("sample.txt", "r", encoding="utf-8") as f:
    text = f.read()

text = re.sub(r'\t', ' ', text)
text = re.sub(r' {2,}', ' ', text)

header = "<h1>{}</h1>".format(text)
paragraph = "<p>{}</p>".format(text)

html_code = header + paragraph

with open("output.html", "w", encoding="utf-8") as f:
    f.write(html_code)

The above is using Python to convert txt How to convert files to HTML format. In this way, we can better display and process text content and improve the efficiency and readability of text processing.

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