2011-03-29 14:11:37 +00:00
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#!/usr/bin/env python3
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#
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# Copyright 2010-2011 Le Coz Florent <louiz@louiz.org>
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#
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# This file is part of Poezio.
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#
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# Poezio is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, version 3 of the License.
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#
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# Poezio is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Poezio. If not, see <http://www.gnu.org/licenses/>.
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"""
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Various methods to convert
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shell colors to poezio colors,
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xhtml code to shell colors,
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poezio colors to xhtml code
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"""
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import re
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import subprocess
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2011-03-29 18:36:02 +00:00
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import logging
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log = logging.getLogger(__name__)
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2011-03-29 14:11:37 +00:00
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shell_colors_re = re.compile(r'(\[(?:\d+;)*(?:\d+m))')
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2011-03-30 02:34:45 +00:00
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start_indent_re = re.compile(r'\[0;30m\[0;37m ')
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newline_indent_re = re.compile('\n\[0;37m ')
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2011-03-29 14:11:37 +00:00
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2011-03-29 18:36:02 +00:00
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def get_body_from_message_stanza(message):
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"""
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Returns a string with xhtml markups converted to
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poezio colors if there's an xhtml_im element, or
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the body (without any color) otherwise
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"""
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xhtml_body = message['xhtml_im']
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if xhtml_body:
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try:
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shell_body = xhtml_code_to_shell_colors(xhtml_body)
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except OSError:
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log.error('html parsing failed')
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else:
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return shell_colors_to_poezio_colors(shell_body)
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return message['body']
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2011-03-30 02:34:45 +00:00
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def clean_text(string):
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"""
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Remove all \x19 from the string
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"""
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pos = string.find('\x19')
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while pos != -1:
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string = string[:pos] + string[pos+2:]
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pos = string.find('\x19')
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return string
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2011-03-29 18:56:11 +00:00
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number_to_color_names = {
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1: 'red',
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2: 'green',
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2011-03-30 02:34:45 +00:00
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3: 'yellow',
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4: 'blue',
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5: 'violet',
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6: 'turquoise',
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7: 'white'
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2011-03-29 18:56:11 +00:00
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}
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def poezio_colors_to_html(string):
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"""
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Convert poezio colors to html makups
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(e.g. \x191: <span style='color: red'>)
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"""
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# TODO underlined
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# a list of all opened elements, e.g. ['strong', 'span']
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# So that we know what we need to close
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opened_elements = []
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2011-03-30 02:34:45 +00:00
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res = "<body xmlns='http://www.w3.org/1999/xhtml'><p>"
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2011-03-29 18:56:11 +00:00
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next_attr_char = string.find('\x19')
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while next_attr_char != -1:
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attr_char = string[next_attr_char+1].lower()
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if next_attr_char != 0:
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res += string[:next_attr_char]
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string = string[next_attr_char+2:]
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if attr_char == 'o':
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for elem in opened_elements[::-1]:
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res += '</%s>' % (elem,)
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opened_elements = []
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elif attr_char == 'b':
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if 'strong' not in opened_elements:
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opened_elements.append('strong')
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res += '<strong>'
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elif attr_char.isdigit():
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number = int(attr_char)
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if number in number_to_color_names:
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if 'span' in opened_elements:
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res += '</span>'
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2011-03-30 02:48:02 +00:00
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else:
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opened_elements.append('span')
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2011-03-29 18:56:11 +00:00
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res += "<span style='color: %s'>" % (number_to_color_names[number])
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next_attr_char = string.find('\x19')
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res += string
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for elem in opened_elements[::-1]:
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res += '</%s>' % (elem,)
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2011-03-29 19:07:53 +00:00
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res += "</p></body>"
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return res.replace('\n', '<br />')
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2011-03-29 18:56:11 +00:00
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2011-03-29 14:11:37 +00:00
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def shell_colors_to_poezio_colors(string):
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"""
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'shell colors' means something like:
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Bonjour ^[[0;32msalut^[[0m
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The current understanding of this syntax is:
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n = 0: reset all attributes to defaults
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2011-03-30 02:34:45 +00:00
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n = 1: activate bold
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2011-03-29 14:11:37 +00:00
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n >= 30 and n <= 37: set the foreground to n-30
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"""
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def repl(matchobj):
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exp = matchobj.group(0)[2:-1]
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numbers = [int(nb) for nb in exp.split(';')]
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res = ''
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for num in numbers:
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if num == 0:
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2011-03-30 02:34:45 +00:00
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res += '\x19o'
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elif num == 1:
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res += '\x19b'
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elif num >= 31 and num <= 37:
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res += '\x19%s' % (num-30,)
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2011-03-29 14:11:37 +00:00
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return res
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2011-03-30 02:34:45 +00:00
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def remove_elinks_indent(string):
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lines = string.split('\n')
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for i, line in enumerate(lines):
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lines[i] = re.sub(' ', '', line, 1)
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return '\n'.join(lines)
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res = shell_colors_re.sub(repl, string).strip()
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res = remove_elinks_indent(res)
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return res
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2011-03-29 14:11:37 +00:00
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def xhtml_code_to_shell_colors(string):
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"""
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Use a console browser to parse the xhtml and
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make it return a shell-colored string
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"""
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process = subprocess.Popen(["elinks", "-dump", "-dump-color-mode", "2"], stdout=subprocess.PIPE, stdin=subprocess.PIPE)
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result = process.communicate(input=string.encode('utf-8'))[0]
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return result.decode('utf-8').strip()
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2011-03-30 02:34:45 +00:00
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def poezio_colors_to_xhtml(string):
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"""
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Generate a valid xhtml string from
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the poezio colors in the given string
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"""
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res = "<body xmlns='http://www.w3.org/1999/xhtml'>"
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next_attr_char = string.find('\x19')
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open_elements = []
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while next_attr_char != -1:
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attr_char = string[next_attr_char+1].lower()
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if next_attr_char != 0:
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res += string[:next_attr_char]
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string = string[next_attr_char+2:]
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if attr_char == 'o':
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# close all opened elements
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for elem in open_elements:
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res += '</%s>'
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open_elements = []
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elif attr_char == 'b':
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if 'strong' not in open_elements:
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res += '<strong>'
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open_elements.append('strong')
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elif attr_char.isdigit():
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self._win.attron(common.curses_color_pair(int(attr_char)))
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next_attr_char = string.find('\x19')
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2011-03-29 14:11:37 +00:00
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if __name__ == '__main__':
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2011-03-29 18:56:11 +00:00
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# print(xhtml_code_to_shell_colors("""
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# <html xmlns='http://jabber.org/protocol/xhtml-im'>
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# <body xmlns='http://www.w3.org/1999/xhtml'>
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# <p style='font-size:large'>
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# <em>Wow</em>, I'm <span style='color:green'>green</span>
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# with <strong>envy</strong>!
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# </p>
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# </body>
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# </html>
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# """))
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print(poezio_colors_to_html('\x191red\x19o \x192green\x19o \x19b\x192green and bold'))
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