Merge branch 'feature/upgrade-dependencies' into develop

Author: wimpyprogrammer

package.json

@@ -47,7 +47,7 @@
     "@babel/plugin-proposal-class-properties": "^7.5.5",
     "@babel/preset-env": "^7.5.5",
     "@babel/preset-typescript": "^7.3.3",
-    "@types/escape-string-regexp": "^1.0.0",
+    "@types/escape-string-regexp": "^2.0.1",
     "@types/history": "^4.7.3",
     "@types/jest": "^26.0.10",
     "@types/jest-when": "^2.4.1",
@@ -79,9 +79,9 @@
     "worker-loader": "^2.0.0"
   },
   "dependencies": {
-    "escape-string-regexp": "^1.0.5",
+    "escape-string-regexp": "^4.0.0",
     "pandemonium": "^1.4.1",
-    "regexp-tree": "0.1.11"
+    "regexp-tree": "^0.1.21"
   },
   "snyk": true
 }

src/pattern.spec.ts

@@ -716,11 +716,6 @@ describe('expand', () => {
 		expect(iterator2.next().value).toBe('z z');
 	});
 
-	it('expands backreferences with numeric names', () => {
-		const result = expandAll('(?<20>a) \\k<20> (?<50>z) \\k<50>');
-		expect(result).toEqual(['a a z z']);
-	});
-
 	it('is performant', () => {
 		const trial = () => expand(/([ab]|(c|[d-e]){2,3})(\w?) \1/);
 		const averageTime = measureAverageTime(trial, 5);
@@ -900,6 +895,7 @@ describe('expand', () => {
 			['capture group', "(?'x'abc)"],
 			['capture group', '(?P<x>abc)'],
 			['capture group with duplicate names', '(?<x>a)|(?<x>b)'],
+			['capture group with numeric name', '(?<20>a)'],
 			['capture group with negative number name', '(?<-17>abc)'],
 			['backreference', '(?<x>a) (?P=x)'],
 			['backreference nested with group', '(?<x>a\\k<x>?)'],
@@ -1472,7 +1468,6 @@ describe('expand', () => {
 			['backreference', "(?<x>ab) \\k'x'"],
 			['backreference', '(?<x>ab) \\k{x}'],
 			['backreference', '(?<x>ab) \\g{x}'],
-			['capture groups override numbered index', '(?<17>ab) \\17'],
 			['failed backreference', '(?<x>ab)? \\k<x>'],
 		])(
 			'does not recognize RegEx syntax: %s /%s/',