import os, re, sys, traceback, urllib
from Funcs import htmlEncode
HTMLForExceptionOptions = {
'table': 'background-color:#F0F0F0',
'default': 'color:#000000',
'row.location': 'color:#000099',
'row.code': 'color:#990000',
'editlink': None,
}
fileRE = re.compile(r'File "([^"]*)", line ([0-9]+), in ([^ ]*)')
def HTMLForLines(lines, options=None):
"""Create HTML for exceptions and tracebacks from a list of strings."""
# Set up the options:
if options:
opt = HTMLForExceptionOptions.copy()
opt.update(options)
else:
opt = HTMLForExceptionOptions
# Create the HTML:
res = ['<table style="%s" width="100%%"'
' cellpadding="2" cellspacing="2">\n' % opt['table'],
'<tr><td><pre style="%s">\n' % opt['default']]
for line in lines:
match = fileRE.search(line)
if match:
parts = map(htmlEncode, line.split('\n'))
parts[0] = '<span style="%s">%s</span>' \
% (opt['row.location'], parts[0])
if opt['editlink']:
parts[0] = ('%s <a href="%s?filename=%s&line=%s">[edit]</a>'
% (parts[0], opt['editlink'], urllib.quote(
os.path.abspath(match.group(1))), match.group(2)))
parts[1] = '<span style="%s">%s</span>' \
% (opt['row.code'], parts[1])
line = '\n'.join(parts)
res.append(line)
else:
res.append(htmlEncode(line))
if lines:
if res[-1][-1] == '\n':
res[-1] = res[-1].rstrip()
res.extend(['</pre></td></tr>\n', '</table>\n'])
return ''.join(res)
def HTMLForStackTrace(frame=None, options=None):
"""Get HTML for displaying a stack trace.
Returns an HTML string that presents useful information to the developer
about the stack. The first argument is a stack frame such as returned by
sys._getframe() which is in fact invoked if a stack frame isn't provided.
"""
# Get the stack frame if needed:
if frame is None:
frame = sys._getframe()
# Return formatted stack traceback
return HTMLForLines(traceback.format_stack(frame), options)
def HTMLForException(excInfo=None, options=None):
"""Get HTML for displaying an exception.
Returns an HTML string that presents useful information to the developer
about the exception. The first argument is a tuple such as returned by
sys.exc_info() which is in fact invoked if the tuple isn't provided.
"""
# Get the excInfo if needed:
if excInfo is None:
excInfo = sys.exc_info()
# Return formatted exception traceback
return HTMLForLines(traceback.format_exception(*excInfo), options)
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