appypod-rattail/pod/__init__.py

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2009-06-29 07:06:01 -05:00
# ------------------------------------------------------------------------------
# Appy is a framework for building applications in the Python language.
# Copyright (C) 2007 Gaetan Delannay
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,USA.
# ------------------------------------------------------------------------------
import time
from appy.shared.utils import Traceback
# Some POD-specific constants --------------------------------------------------
XHTML_HEADINGS = ('h1', 'h2', 'h3', 'h4', 'h5', 'h6')
XHTML_LISTS = ('ol', 'ul')
XHTML_PARAGRAPH_TAGS = XHTML_HEADINGS + XHTML_LISTS + ('p',)
XHTML_PARAGRAPH_TAGS_NO_LISTS = XHTML_HEADINGS + ('p',)
XHTML_INNER_TAGS = ('b', 'i', 'u', 'em')
XHTML_UNSTYLABLE_TAGS = XHTML_LISTS + ('li', 'a')
XML_SPECIAL_CHARS = {'<': '&lt;', '>': '&gt;', '&': '&amp;', '"': '&quot;',
"'": '&apos;'}
# ------------------------------------------------------------------------------
class PodError(Exception):
def dumpTraceback(buffer, tb, textNs, removeFirstLine):
if removeFirstLine:
# This error came from an exception raised by pod. The text of the
# error may be very long, so we avoid having it as error cause +
# in the first line of the traceback.
linesToRemove = 3
else:
linesToRemove = 2
i = 0
for tLine in tb.splitlines():
i += 1
if i > linesToRemove:
buffer.write('<%s:p>' % textNs)
try:
buffer.dumpContent(tLine)
except UnicodeDecodeError, ude:
buffer.dumpContent(tLine.decode('utf-8'))
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buffer.write('</%s:p>' % textNs)
dumpTraceback = staticmethod(dumpTraceback)
def dump(buffer, message, withinElement=None, removeFirstLine=False, dumpTb=True):
'''Dumps the error p_message in p_buffer.'''
# Define some handful shortcuts
e = buffer.env
ns = e.namespaces
dcNs = e.ns(e.NS_DC)
officeNs = e.ns(e.NS_OFFICE)
textNs = e.ns(e.NS_TEXT)
if withinElement:
buffer.write('<%s>' % withinElement.OD.elem)
for subTag in withinElement.subTags:
buffer.write('<%s>' % subTag.elem)
buffer.write('<%s:annotation><%s:creator>POD</%s:creator>' \
'<%s:date>%s</%s:date><%s:p>' % \
(officeNs, dcNs, dcNs, dcNs,
time.strftime('%Y-%m-%dT%H:%M:%S'), dcNs, textNs))
buffer.dumpContent(message)
buffer.write('</%s:p>' % textNs)
if dumpTb:
# We don't dump the traceback if it is an expression error (it is
# already included in the error message)
PodError.dumpTraceback(buffer, Traceback.get(), textNs,
removeFirstLine)
buffer.write('</%s:annotation>' % officeNs)
if withinElement:
subTags = withinElement.subTags[:]
subTags.reverse()
for subTag in subTags:
buffer.write('</%s>' % subTag.elem)
buffer.write('</%s>' % withinElement.OD.elem)
dump = staticmethod(dump)
def convertToXhtml(s):
'''Produces the XHTML-friendly version of p_s.'''
res = ''
for c in s:
if XML_SPECIAL_CHARS.has_key(c):
res += XML_SPECIAL_CHARS[c]
elif c == '\n':
res += '<br/>'
elif c == '\r':
pass
else:
res += c
return res
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# ------------------------------------------------------------------------------