@gram-data/gram-ast

Gram abstract syntax tree definitions and utilities like type guards.

How to gram-ast

Install:

npm install @gram-data/gram-ast

Use [[gram-parse]] to create an AST, then introspect with gram-ast:

import { toAST } from '@gram-data/gram-parse'; 

const src = '(a)-->(b)';
const parsed = toAST(src);

// the top-level of the AST is a sequence of paths
console.assert(isGramSeq(parsed));

// the first path should be an edge
const firstPath = parsed.children[0];
console.assert(isGramEdge(firstPath));

// the children of an edge are nodes
console.assert(isGramNode(firstPath.children[0]));
console.assert(isGramNode(firstPath.children[1]));

Next Steps

• Transform to js objects using [[gram-value]]
• Write a unist plugin for processing the AST