[Cdk-devel] smart_parser

[sushil r. <ron...@gm...>]

the smart parser is now able to parse ring atom as well as ringconnection
atom.( r and x)
i am using the documentation at this page.
http://www.daylight.com/dayhtml/doc/theory/theory.smarts.html

Now here is some conflict about the expression or i am asking to implement
the smart pattern as it is given there.
It is not a problem for me to implement as it is. Before that we need to
resolve something.
here are some of the problems

1) R and r both indicate the ring atom ,should we use both of them.
 2) X represents the total connection and D represent the explicit
connections old parser identify the D token,should we also have this
    X token if so what will be the benifit of that.

One more change needed in old parser is detection of default token means ..
older parser identify the D,h and H token but if and only if it is
associated with number like D<n> but not D(which means exactly one)

so i have also modified these expression to detect the defaults.



-- 
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sushil ronghe
Center of Pharmacoinformatics
India
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