Working on API surface.

packages/js/core/dist/readers/js-string.cjs

@@ -0,0 +1,2 @@
+"use strict";Object.defineProperties(exports,{__esModule:{value:!0},[Symbol.toStringTag]:{value:"Module"}});function i(r,n=0){const t=Array.isArray(r)?r:r.split(`
+`),e={index:n-1,next:()=>(e.index++,e.index>=t.length?null:t[e.index]),clone:l=>i(r,l==null?n:e.index)};return e}exports.createStringReader=i;

packages/js/core/dist/readers/js-string.js

@@ -0,0 +1,12 @@
+function l(e, r = 0) {
+  const t = Array.isArray(e) ? e : e.split(`
+`), n = {
+    index: r - 1,
+    next: () => (n.index++, n.index >= t.length ? null : t[n.index]),
+    clone: (i) => l(e, i == null ? r : n.index)
+  };
+  return n;
+}
+export {
+  l as createStringReader
+};

packages/js/core/dist/readers/node-readline.cjs

@@ -0,0 +1 @@
+"use strict";Object.defineProperties(exports,{__esModule:{value:!0},[Symbol.toStringTag]:{value:"Module"}});const e={};function r(t){const a=e.createInterface({input:e.createReadStream(t,"utf-8")})[Symbol.asyncIterator]();return async()=>(await a.next()).value}exports.createReadlineReader=r;

packages/js/core/dist/readers/node-readline.js

@@ -0,0 +1,10 @@
+const e = {};
+function n(t) {
+  const a = e.createInterface({
+    input: e.createReadStream(t, "utf-8")
+  })[Symbol.asyncIterator]();
+  return async () => (await a.next()).value;
+}
+export {
+  n as createReadlineReader
+};