--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/log_formatter.py	Mon Feb 09 00:24:13 2009 +0200
@@ -0,0 +1,106 @@
+"""
+    Format LogLines into some other representation
+"""
+
+from qmsk.web import helpers
+
+from log_line import LogTypes
+
+class LogFormatter (object) :
+    """
+        Provides a method to format series of LogLines into various output formats, with varying themes
+    """
+    
+    def __init__ (self, tz, timestamp_fmt="%H:%M:%S") :
+        """
+            Initialize to format timestamps with the given timezone and timestamp
+        """
+
+        self.tz = tz
+        self.timestamp_fmt = timestamp_fmt
+    
+    def _format_line_text (self, line, template_dict) :
+        """
+            Format the given line as text, using the given { type: string template } dict
+        """
+        
+        # look up the template
+        template = template_dict[line.type]
+
+        # build timestamp
+        timestamp = line.timestamp.astimezone(self.tz).strftime(self.timestamp_fmt)
+        
+        # format with dict
+        return template % dict(
+            timestamp       = timestamp,
+            source          = line.source,
+            data            = line.data,
+        )
+    
+    def format_txt (self, lines) :
+        """
+            Format as plaintext
+        """
+
+        abstract
+
+    def format_html (self, lines) :
+        """
+            Format as HTML
+        """
+
+        abstract
+
+class IrssiTextFormatter (LogFormatter) :
+    """
+        Implements format_txt for irssi-style output
+    """
+
+    # format definitions by type
+    __FMT = {
+        LogTypes.RAW        : "%(timestamp)s %(data)s",
+    }
+
+    def format_txt (self, lines) :
+        # ...handle each line
+        for line in lines :
+            # using __TYPES
+            yield self._format_line_text(line, self.__FMT)
+
+class IrssiFormatter (IrssiTextFormatter) :
+    """
+        Implements plain black-and-white irssi-style formatting
+    """
+
+    def format_html (self, lines) :
+        """
+            Just uses format_txt, but wraps in <pre></pre>
+        """
+        
+        # open pre
+        yield "<pre>"
+        
+        # format using IrssiTextFormatter
+        for line in self.format_txt(lines) :
+            # escape HTML
+            yield helpers.escape(line)
+
+        # close pre
+        yield "</pre>"
+
+# define formatters by name
+FORMATTERS = {
+    'irssi':        IrssiFormatter,
+}
+
+def by_name (name) :
+    """
+        Lookup and return a formatter by name
+        
+        XXX: uses default timezone/timefmt
+    """
+
+    import pytz
+
+    return FORMATTERS[name](pytz.utc)
+