[Developers] quoting in par-file strings

[Jonathan Thornburg]

I proposed:
>> * A string is delimited by either single-quotes ('...')
>>    or double-quotes ("...").
>> * Within a string delimited by single-quotes, double-quotes may be
>>    used with no need for special quoting
>> * Within a string delimited by double-quotes, single-quotes may be
>>    used with no need for special quoting
>> * Backslash quotes the next character, i.e.
>>    * \' gives a single-quote character without delimiting the string
>>    * \" gives a double-quote character without delimiting the string
>>    * \\ gives a backslash character in the string

Frank:
> I think you should add that Backslash quotes should only be possible in 
> double quoted strings, which would also make your point 2 obsolete.

My intent is to make single and double quotes symmetric, i.e.
to make the same backslash-escapes work in both of them.

ciao,

-- 
-- Jonathan Thornburg <jthorn at aei.mpg.de>
    Max-Planck-Institut fuer Gravitationsphysik (Albert-Einstein-Institut),
    Golm, Germany, "Old Europe"     http://www.aei.mpg.de/~jthorn/home.html
    "Washing one's hands of the conflict between the powerful and the
     powerless means to side with the powerful, not to be neutral."
                                       -- quote by Freire / poster by Oxfam