# npm install designscript.js
DesignScript.js is generated with browserify, so you can use it with a variety of module systems (see below).
A DesignScript parser and interpreter that runs in the browser. You can use it to parse, generate, and run DesignScript code.
Most of the project is written in TypeScript.
- AST
- Parser
- Interpreter (with debugging support)
- Language blocks (Imperative and Associative)
- Replication
- Replication guides
- Type declaration for variables, function arguments
- Range expressions
See src/AST.ts for a complete list.
- For, while loops in imperative blocks
- Classes
var AST = require('./build/designscript').AST;
var sl =
new AST.StatementListNode(
new AST.AssignmentNode(
new AST.IdentifierNode("a", new AST.Type("number")),
new AST.NumberNode("3.14159")));
console.log( sl.toString() ); // prints "a : number = 3.14159;"
var designscript = require('./build/designscript');
// parse some DesignScript
var ast = designscript.Parser.parse('w = [Imperative]{ return = 4; }');
Continuing from the Parser example:
var i = new designscript.Interpreter();
i.run( ast );
console.log( i.env.lookup("w") ); // prints "4"
Pass a function to an Interpreter that will be invoked upon consuming every part of the AST. When invoked, the Interpreter passes along a callback that must be invoked in order to continue execution.
var interpreter = new designscript.Interpreter(
function(node, env, stack, callback){
// do stuff with node, env, stack
callback();
});
interpreter.run( ast );
See example/debugger.html for a more complete example.
Install node.js
# npm install -g jison
# npm install -g browserify
# npm install -g typescript
# make build
# make release
Produces designscript.js in the build directory
# make test