# File: formatter-example-3.py

import formatter
import htmllib, string

class Writer(formatter.DumbWriter):

    def __init__(self):
        formatter.DumbWriter.__init__(self)
        self.tag = ""
        self.bold = self.italic = 0
        self.fonts = []

    def new_font(self, font):
        if font is None:
            font = self.fonts.pop()
            self.tag, self.bold, self.italic = font
        else:
            self.fonts.append((self.tag, self.bold, self.italic))
            tag, bold, italic, typewriter = font
            if tag is not None:
                self.tag = tag
            if bold is not None:
                self.bold = bold
            if italic is not None:
                self.italic = italic

    def send_flowing_data(self, data):
        if not data:
            return
        atbreak = self.atbreak or data[0] in string.whitespace
        for word in string.split(data):
            if atbreak:
                self.file.write(" ")
            if self.tag in ("h1", "h2", "h3"):
                word = string.upper(word)
            if self.bold:
                word = "*" + word + "*"
            if self.italic:
                word = "_" + word + "_"
            self.file.write(word)
            atbreak = 1
        self.atbreak = data[-1] in string.whitespace

w = Writer()
f = formatter.AbstractFormatter(w)

file = open("samples/sample.htm")

# print html body as plain text
p = htmllib.HTMLParser(f)
p.feed(file.read())
p.close()

## $ python formatter-example-3.py
## 
## _A_ _CHAPTER._
## 
## Some text. Some more text. Some *emphasised* text. A link[1].