Evennia now runs on its own Twisted webserver (no need for testserver or Apache if you don't want to). Evennia now also has an ajax long-polling web client running from Twisted. The web client requires no extra dependencies beyond jQuery which is included. The src/server structure has been r

cleaned up and rewritten to make it easier to add new protocols in the future - all new protocols need to inherit from server.session.Session, whi
ch implements a set of hooks that Evennia uses to communicate. The current web client protocol is functional but does not implement any of rcaskey
's suggestions as of yet - it uses a separate data object passed through msg() to communicate between the server and the various protocols. Also the client itself could probably need cleanup and 'prettification'. The fact that the system runs a hybrid of Django and Twisted, getting the best of both worlds should allow for many possibilities in the future. /Griatch

src/utils/ansi2html.py

@@ -0,0 +1,137 @@
+
+"""
+ANSI -> html converter
+
+Credit for original idea and implementation 
+goes to Muhammad Alkarouri and his 
+snippet #577349 on http://code.activestate.com.
+
+(extensively modified by Griatch 2010)
+"""
+
+import re
+import cgi
+from src.utils import ansi
+
+class ANSItoHTMLparser(object):
+    """
+    This class describes a parser for converting from ansi to html.
+    """    
+    
+    # mapping html color name <-> ansi code. 
+    # Obs order matters - longer ansi codes are replaced first.
+    colorcodes = [('white', '\033[1m\033[37m'),
+                  ('cyan', '\033[1m\033[36m'),
+                  ('blue', '\033[1m\033[34m'),
+                  ('red', '\033[1m\033[31m'),
+                  ('magenta', '\033[1m\033[35m'),
+                  ('lime', '\033[1m\033[32m'), 
+                  ('yellow', '\033[1m\033[33m'),
+                  ('gray', '\033[37m'),
+                  ('teal', '\033[36m'), 
+                  ('navy', '\033[34m'),
+                  ('maroon', '\033[31m'),
+                  ('purple', '\033[35m'),
+                  ('green', '\033[32m'),
+                  ('olive', '\033[33m')]
+    normalcode = '\033[0m'                
+    tabstop = 4
+
+    re_string = re.compile(r'(?P<htmlchars>[<&>])|(?P<space>^[ \t]+)|(?P<lineend>\r\n|\r|\n)|(?P<protocal>(^|\s)((http|ftp)://.*?))(\s|$)', 
+                           re.S|re.M|re.I)
+
+    def re_color(self, text):
+        "Replace ansi colors with html color tags"
+        for colorname, code in self.colorcodes:
+            regexp = "(?:%s)(.*?)(?:%s)" % (code, self.normalcode)
+            regexp = regexp.replace('[', r'\[')
+            text = re.sub(regexp, r'''<span style="color: %s">\1</span>''' % colorname, text)
+        return text
+
+    def re_bold(self, text):
+        "Replace ansi hilight with bold text"
+        regexp = "(?:%s)(.*?)(?:%s)" % ('\033[1m', self.normalcode)
+        regexp = regexp.replace('[', r'\[')
+        return re.sub(regexp, r'<span style="font-weight:bold">\1</span>', text)
+
+    def re_underline(self, text):
+        "Replace ansi underline with html equivalent"
+        regexp = "(?:%s)(.*?)(?:%s)" % ('\033[4m', self.normalcode)
+        regexp = regexp.replace('[', r'\[')
+        return re.sub(regexp, r'<span style="text-decoration: underline">\1</span>', text)
+
+    def remove_bells(self, text):
+        "Remove ansi specials"
+        return text.replace('\07', '')
+
+    def remove_backspaces(self, text):
+        "Removes special escape sequences"
+        backspace_or_eol = r'(.\010)|(\033\[K)'
+        n = 1
+        while n > 0:
+            text, n = re.subn(backspace_or_eol, '', text, 1)
+        return text
+
+    def convert_linebreaks(self, text):
+        "Extra method for cleaning linebreaks"
+        return text.replace(r'\n', r'<br>')
+
+    def do_sub(self, m):
+        "Helper method to be passed to re.sub."
+        c = m.groupdict()
+        if c['htmlchars']:
+            return cgi.escape(c['htmlchars'])
+        if c['lineend']:
+            return '<br>'
+        elif c['space']:
+            t = m.group().replace('\t', '&nbsp;'*self.tabstop)
+            t = t.replace(' ', '&nbsp;')
+            return t
+        elif c['space'] == '\t':
+            return ' '*self.tabstop
+        else:
+            url = m.group('protocal')
+            if url.startswith(' '):
+                prefix = ' '
+                url = url[1:]
+            else:
+                prefix = ''
+            last = m.groups()[-1]
+            if last in ['\n', '\r', '\r\n']:
+                last = '<br>'
+            return '%s%s' % (prefix, url)
+
+    def parse(self, text):
+        """
+        Main access function, converts a text containing 
+        ansi codes into html statements. 
+        """
+
+        # parse everything to ansi first 
+        text = ansi.parse_ansi(text)
+
+        # convert all ansi to html
+        result = re.sub(self.re_string, self.do_sub, text)
+        result = self.re_color(result)
+        result = self.re_bold(result)
+        result = self.re_underline(result)
+        result = self.remove_bells(result)
+        result = self.convert_linebreaks(result)
+        result = self.remove_backspaces(result)
+
+        # clean out eventual ansi that was missed
+        result = ansi.parse_ansi(result, strip_ansi=True)
+    
+        return result 
+
+HTML_PARSER = ANSItoHTMLparser()
+
+#
+# Access function
+#
+
+def parse_html(string, parser=HTML_PARSER):
+    """
+    Parses a string, replace ansi markup with html
+    """
+    return parser.parse(string)