CLI for getting grammars diff to test how Ometa parses itself

src/cli_diff.ts

@@ -0,0 +1,45 @@
+import * as fs from "fs";
+import { IMatchResult, Parser } from './parser'
+import { Ast } from './grammar-ast'
+import { math1 } from './grammars/math1'
+import { ometa1, proj } from './grammars/ometa1'
+import { TraceDiscovery } from "./utils/trace-discover";
+import { IParserFn } from "types";
+import * as equal from "fast-deep-equal/es6";
+
+const printTrace = (p: Parser, input) => {
+  const disco = new TraceDiscovery(p.grammar, input, p.trace.data)
+  const trace = disco.convert()
+  console.log(JSON.stringify(trace, null, 2))
+}
+
+const saveTrace = (p: Parser, input) => {
+  const disco = new TraceDiscovery(p.grammar, input, p.trace.data)
+  const trace = disco.convert()
+  fs.writeFileSync("./dist/trace.json", JSON.stringify(trace, null, 2))  
+}
+
+const printRes = (p: Parser, res: IMatchResult) => {
+  console.dir(r, {depth: null})
+  // const trace = p.trace.data[p.trace.data.length-1]
+  // console.log('root trace item:')
+  // console.dir(trace, {depth:1})
+}
+
+const input = fs.readFileSync('src/grammars/ometa1.ometa', 'utf-8')
+const p = new Parser(ometa1, proj)
+const r = p.match(input as unknown as any[], 'ometa')
+
+saveTrace(p, input)
+printRes(p, r)
+const isEqual = equal(ometa1, r.result)
+
+console.log('\nDiff:\n')
+console.log('isEqual: ' + isEqual)
+
+fs.writeFileSync("./dist/diff_expected.json", JSON.stringify(ometa1, null, 2))
+fs.writeFileSync("./dist/diff_actual.json", JSON.stringify(r.result, null, 2))
+
+
+
+