Leo's g.skip_ functions are a relic of my C coding days. They are usually
slow and clumsy compared to regex patterns.
The new importer uses regex's almost everywhere, including all
clean_headline methods, and wherever the code needs to determine whether a
line starts a class or def.
An interesting special case. Importer.__init__ contains the following code:
self.escape = c.atFileCommands.underindentEscapeString
# typically, r'\\-'
self.escape_string = r'%s([0-9]+)\.' % re.escape(self.escape)
Every python programmer should be aware of re.escape, as explained here
<http://stackoverflow.com/questions/280435/escaping-regex-string-in-python>.
EKR
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