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Independent Project.Matching.Match Syntax

#### Basics:

Wrap sub-matches in %%  example:

%emails% from %date%

This will look for " from " in the query, assign what is left of " from " to a variable emails , and what is right of " from " to a variable date and then call the function defined for that rule, or return the data.

Also, in order to differentiate types of the same name, you can optionally put a : and then the name of a variable you would like it mapped to.  For example:

%number:x% + %number:y%

return vars.x + vars.y

Still might consider removing the vars variable and mapping the values directly into the environment:

return x + y

this would only cause an issue if you wanted use a name for a variable that is also a keyword.  At this point, thats a pretty minor thing... I'll leave this with a vars table for now.  If it gets tedious later, I can change it.

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#### Old Problems:

what about a match like this:

'%number% + %number%'

what are the vars going to be mapped to in this case when the type number occurs more than once.  There are a couple possible solutions I see at this point:

* require user to use instead '%number1% + %number2%'
    + results in slightly less readable matches
    + very obvious which number is going to be assigned to which variable
* allow '%number% + %number%', but map to vars.number1 and vars.number2
* allow '%number% + %number%', but map to vars.number[1] and vars.number[2]
* allow extra names: '%number:num1% + %number:num2%' or 'copy(%memory location:src%, %memory location:dest%
    + this makes it very clear which variables are mapped to what rather than just getting var1, var2, etc.
    + This is the one implemented