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# -*- coding: utf-8 -*-
"""
werkzeug.debug.render
~~~~~~~~~~~~~~~~~~~~~
Render the traceback debugging page.
:copyright: (c) 2010 by the Werkzeug Team, see AUTHORS for more details.
:license: BSD, see LICENSE for more details.
"""
import pprint
from os.path import dirname, join
from werkzeug.templates import Template
def get_template(name):
return Template.from_file(join(dirname(__file__), 'shared', name),
unicode_mode=False, errors='ignore')
def load_resource(res):
try:
f = file(join(dirname(__file__), 'shared', res))
except IOError:
return ''
try:
return f.read()
finally:
f.close()
t_body = get_template('body.tmpl')
t_codetable = get_template('codetable.tmpl')
t_vartable = get_template('vartable.tmpl')
def code_table(frame):
from werkzeug.debug.util import Namespace
lines = []
lineno = frame['context_lineno']
if lineno is not None:
lineno += 1
for l in frame['pre_context']:
lines.append(Namespace(mode='pre', lineno=lineno, code=l))
lineno += 1
lines.append(Namespace(mode='cur', lineno=lineno,
code=frame['context_line']))
lineno += 1
for l in frame['post_context']:
lines.append(Namespace(mode='post', lineno=lineno, code=l))
lineno += 1
else:
lines.append(Namespace(mode='cur', lineno=1,
code='Sourcecode not available'))
return t_codetable.render(lines=lines)
def var_table(var):
def safe_pformat(x):
try:
lines = pprint.pformat(x).splitlines()
except:
return '?'
tmp = []
for line in lines:
if len(line) > 79:
line = line[:79] + '...'
tmp.append(line)
return '\n'.join(tmp)
# dicts
if isinstance(var, dict) or hasattr(var, 'items'):
value = var.items()
if not value:
typ = 'empty'
else:
typ = 'dict'
value.sort()
value = [(repr(key), safe_pformat(val)) for key, val in value]
# lists
elif isinstance(var, list):
if not var:
typ = 'empty'
else:
typ = 'list'
value = [safe_pformat(item) for item in var]
# others
else:
typ = 'simple'
value = repr(var)
return t_vartable.render(type=typ, value=value)
def debug_page(context):
tc = context.to_dict()
tc['var_table'] = var_table
tc['code_table'] = code_table
return t_body.render(tc)
|
