"Bruce Wood" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
>
> Jakub Bednarczuk wrote:
>> Hi everybody
>>
>> I am trying to find the solution for the problem stated in the topic,
>> but so far without any result.
>> Let's see the problem.
>>
>> I have set of conditions and the description (logical sentence) how
>> should be these conditions connected with each other. See how does it
>> look in xml
>>
>> <root>
>> <conditions>
>> <condition term = '1'/>
>> <condition term = '2'/>
>> </conditions>
>> <logicOperation>(#1 and #2)</logicOperation>
>> </root>
>>
>> I store the conditions results in bool array. How can I get the
>> logicOperation result having (#1 and #2) as a string ?
>>
>> I already converted the given logicOperation into the form (true &&
>> false). However it is still string, and the during the converting to
>> bool sample is impossible.
>>
>> I have the idea to loop thru all "true" and "false" strings and
>> converting them to bool. The problem is how to store logicOperation
>> during transformation. I mean: How to store (true && false) where true
>> is of bool type and false is of string type? I think it is impossible.
>>
>> Maybe someone of you have the tricky idea how to do it ?
>
> There is no tricky way in C# that I know of. You have to write your own
> little parser and expression evaluation class. Fortunately, it's not
> that difficult....
>
If the xml schema is changed to represent an AST, then parsing strings won't
be necessary either.
something like:
<root>
<nodes>
<condition term="1"/>
<condition term="2"/>
<condition term="3"/>
<expression term="out1" logicOperation="and">
<input term="1"/>
<input term="2"/>
</expression>
<expression term="tmp1" logicOperation="or">
<input term="1"/>
<input term="2"/>
</expression>
<expression term="out2" logicOperation="and">
<input term="3"/>
<input term="tmp1"/>
</expression>
</nodes>
</root>
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