[Pyparsing] Escaping quotes and such

[Gre7g L. <haf...@ya...>]

Hey guys!  My parser has been working great, but I've
run into a small snag in parsing C-style escapes.  For
example:

>>> import pyparsing as PP
>>> P = PP.QuotedString(quoteChar='"', escChar="\\")
>>> P.parseString('"This is a quote: \\"   This is a
CR: \\n"')
(['This is a quote: "   This is a CR: n'], {})

As you can see, specifying escChar="\\" worked well at
first, as the parser recognized that \" is a character
in the string and not an end of quote. HOWEVER, when
the \n didn't match the \" pattern it was looking for,
instead of leaving it alone, it completely dropped the
\.

I need it to leave that \ intact so that I can find
other string constants such as \n, \7, \xFF, etc.  I
do this by re-parsing the strings with my code. 
Perhaps that is not best?  What should I do?

TIA,

Gre7g

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