LapwingLabsjsepgen
Tiny module (15 LOC) to generate code from the jsep AST.
Example
Convert all variables and functions to an object with the same key
var jsep = require('jsep');
var gen = require('gen');
// parse the expression into an AST
var ast = jsep('-A1 + SUM(A5, A6) + " %"')
// replace variables and functions
var expr = gen(ast, function(node) {
if (node.type != 'Identifier') return node;
node.name = '_.' + node.name;
})
expr // ((-_.A1 + _.SUM(_.A5, _.A6)) + "%")It's pretty easy to turn this into a function:
var fn = new Function('_', 'return ' + expr);
var total = fn({
A1: 2,
A5: 5,
A6: 6,
SUM: function(a, b) { return a + b }
})
total // 9%Installation
npm install jsepgenContact
License
MIT