Prettify HTML

Format HTML with indentation for improved readability and debugging.

Code

Utilities

from html.parser import HTMLParser
import re

class Prettifier(HTMLParser):
    def __init__(self, indent_size):
        super().__init__()
        self.indent_size = indent_size
        self.level = 0
        self.result = []

    def handle_starttag(self, tag, attrs):
        attrs_str = ''.join(f' {k}="{v}"' for k, v in attrs) if attrs else ''
        self.result.append(' ' * (self.level * self.indent_size) + f'<{tag}{attrs_str}>')
        self.level += 1

    def handle_endtag(self, tag):
        self.level -= 1
        self.result.append(' ' * (self.level * self.indent_size) + f'</{tag}>')

    def handle_data(self, data):
        text = data.strip()
        if text:
            self.result.append(' ' * (self.level * self.indent_size) + text)

p = Prettifier(indent)
p.feed(html)
return '\n'.join(p.result)

Parameters

html(string)

HTML string to format.

indent(number)

Number of spaces for indentation.

Server

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