Current Dev State

static/js/ketcher2/node_modules/has-require/index.js

@@ -0,0 +1,41 @@
+'use strict'
+
+var escape = require('escape-string-regexp')
+
+module.exports = hasRequire
+
+function hasRequire (code, id) {
+  return new RequireChecker(code).has(id)
+}
+
+hasRequire.any = function anyRequire (code) {
+  return new RequireChecker(code).any()
+}
+
+hasRequire.Checker = RequireChecker
+
+function RequireChecker (code) {
+  this.code = code
+}
+
+var anyRegExp = createRegExp('@?[A-Za-z0-9/_.-]+')
+RequireChecker.prototype.any = function anyRequire () {
+  if (this._any != null) return this._any
+  this._any = anyRegExp.test(this.code)
+  return this._any
+}
+
+RequireChecker.prototype.has = function has (id) {
+  if (!id) throw new Error('module id is required')
+  return this.any() && createRegExp(escape(id)).test(this.code)
+}
+
+function createRegExp (input) {
+  return new RegExp([
+    escape('require('),
+    '\\s*[\'"]',
+    input,
+    '[\'"]\\s*',
+    escape(')')
+  ].join(''))
+}