def _dump(self):
'''Returns the page source'''
tree = self.get_parsetree()
if tree is None:
raise AssertionError, 'BUG: Can not store a page without content'
#~ print 'STORE', tree.tostring()
if tree.hascontent:
new = False
if self.properties is None:
self.properties = HeadersDict()
new = True
self.properties['Content-Type'] = 'text/x-zim-wiki'
self.properties['Wiki-Format'] = WIKI_FORMAT_VERSION
if new:
now = datetime.now()
self.properties['Creation-Date'] = now.isoformat()
# Note: No "Modification-Date" here because it causes conflicts
# when merging branches with version control, use mtime from filesystem
# If we see this header, remove it because it will not be updated.
try:
del self.properties['Modification-Date']
except:
pass
lines = self.properties.dump()
lines.append('\n')
lines.extend(self.format.Dumper().dump(tree))
return lines
else:
return []
def _fetch_parsetree(self, lines=None):
'''Fetch a parsetree from source or returns None'''
#~ print '!! fetch tree', self
## Enable these lines to test error handling in the UI
#~ import random
#~ if random.random() > 0.5:
#~ raise Exception, 'This is a test error'
###
try:
lines = lines or self.source.readlines()
self.properties = HeadersDict()
self.properties.read(lines)
# TODO: detect other formats by the header as well
if 'Wiki-Format' in self.properties:
version = self.properties['Wiki-Format']
else:
version = 'Unknown'
parser = self.format.Parser(version)
return parser.parse(lines)
except FileNotFoundError:
return None
