Cheetah/ErrorCatchers.py

   1 #!/usr/bin/env python
   2 # $Id: ErrorCatchers.py,v 1.7 2005/01/03 19:59:07 tavis_rudd Exp $
   3 """ErrorCatcher class for Cheetah Templates
   4
   5 Meta-Data
   6 ================================================================================
   7 Author: Tavis Rudd <tavis@damnsimple.com>
   8 Version: $Revision: 1.7 $
   9 Start Date: 2001/08/01
  10 Last Revision Date: $Date: 2005/01/03 19:59:07 $
  11 """
  12 __author__ = "Tavis Rudd <tavis@damnsimple.com>"
  13 __revision__ = "$Revision: 1.7 $"[11:-2]
  14
  15 import time
  16 from Cheetah.NameMapper import NotFound
  17
  18 class Error(Exception):
  19     pass
  20
  21 class ErrorCatcher:
  22     _exceptionsToCatch = (NotFound,)
  23
  24     def __init__(self, templateObj):
  25         pass
  26
  27     def exceptions(self):
  28         return self._exceptionsToCatch
  29
  30     def warn(self, exc_val, code, rawCode, lineCol):
  31         return rawCode
  32 ## make an alias
  33 Echo = ErrorCatcher
  34
  35 class BigEcho(ErrorCatcher):
  36     def warn(self, exc_val, code, rawCode, lineCol):
  37         return "="*15 + "&lt;" + rawCode + " could not be found&gt;" + "="*15
  38
  39 class KeyError(ErrorCatcher):
  40     def warn(self, exc_val, code, rawCode, lineCol):
  41         raise KeyError("no '%s' in this Template Object's Search List" % rawCode)
  42
  43 class ListErrors(ErrorCatcher):
  44     """Accumulate a list of errors."""
  45     _timeFormat = "%c"
  46
  47     def __init__(self, templateObj):
  48         ErrorCatcher.__init__(self, templateObj)
  49         self._errors = []
  50
  51     def warn(self, exc_val, code, rawCode, lineCol):
  52         dict = locals().copy()
  53         del dict['self']
  54         dict['time'] = time.strftime(self._timeFormat,
  55                                      time.localtime(time.time()))
  56         self._errors.append(dict)
  57         return rawCode
  58
  59     def listErrors(self):
  60         """Return the list of errors."""
  61         return self._errors
  62
  63