Escape - in a way that’s compatible with PCRE (#23)

Author: charmander

index.js

@@ -9,5 +9,5 @@ module.exports = string => {
 	// Use a simple backslash escape when it’s always valid, and a \unnnn escape when the simpler form would be disallowed by Unicode patterns’ stricter grammar.
 	return string
 		.replace(/[|\\{}()[\]^$+*?.]/g, '\\$&')
-		.replace(/-/g, '\\u002d');
+		.replace(/-/g, '\\x2d');
 };

test.js

@@ -8,10 +8,10 @@ test('main', t => {
 	);
 });
 
-test('escapes `-`', t => {
+test('escapes `-` in a way compatible with PCRE', t => {
 	t.is(
 		escapeStringRegexp('foo - bar'),
-		'foo \\u002d bar'
+		'foo \\x2d bar'
 	);
 });