I am a new user of leo and find it most powerful and useful. I did run
into a XML parsing problem that was able to track down and figure out
and I thought to post what I found.
The problem came from pasting in a block of text from a PDF file into
a a node text window and the text happened to have an 'unprintable'
character. After saving the .leo file and reading back the file the
next day, in the whole outline and file became unusable until I
manually tracked down and deleted the bad character in the XML file.
The log ( python ) error was:
reading: C:\x2.leo
error parsing C:\x2.leo
Traceback (most recent call last):
File "C:\Leo-4-5-1-final\leo\core\leoFileCommands.py", line 1266, in
parse_leo_file
parser.parse(theFile) # expat does not support parseString
File "C:\Python24\lib\xml\sax\expatreader.py", line 107, in parse
xmlreader.IncrementalParser.parse(self, source)
File "C:\Python24\lib\xml\sax\xmlreader.py", line 123, in parse
self.feed(buffer)
File "C:\Python24\lib\xml\sax\expatreader.py", line 211, in feed
self._err_handler.fatalError(exc)
File "C:\Python24\lib\xml\sax\handler.py", line 38, in fatalError
raise exception
SAXParseException: <unknown>:51:55: not well-formed (invalid token)
I can attach leo files with the error if anyone wants to look at it.
The character does show in Notepad but not the leo text window.
At least this showed the value of plain text XML for leo files for
finding and correcting the problem. And the problem could be called a
python SAX xmlreader problem, and I am not sure if it is possible to
fix in leo code, but my suggestion is to add a .leo reading step that
shows the exact location of characters that can not be translated.
Fortunately my outline was small enough to find the problem character,
but in larger files it would have been very hard to find because none
of the nodes would load from the file.
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