I want to create a parser, possibly recursive to use in my GIS application
that work on top of OpenLayers 2.
I have a query like this:
name = 1 OR name = 2 OR name in(3,4)
The query is written in SQL style.
I want an output like this (as an array of expressions and operators):
var rules = [
{
property:'name',
operator: 'equal',
value: 1
},
'OR',
{
property:'name',
operator: 'equal',
value: 2
},
'OR',
{
property:'name',
operator: 'in',
value: [3,4]
}];
The main problem here is haven't been able to parse the string. I have been
looking for libraries that could do it automatically.
I found JISON <http://zaach.github.io/jison/>, but it seems that I have to
write the whole grammar.
I wonder if there is a library that parses this kind of SQL string into a
JavaScript object/array, for future manipulation.
The purpose is to insert these data in an SLD rule
<http://dev.openlayers.org/docs/files/OpenLayers/Rule-js.html> of a layer
in OpenLayers 2.
As a matter of fact, it should also be able to parse nested queries.
Thank you.
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