(js-syntax-propertize-regexp): Recognize "slash in a character class"

Fixes: debbugs:19397

* lisp/progmodes/js.el (js--syntax-propertize-regexp-syntax-table): New var.
(js-syntax-propertize-regexp): Use it to recognize "slash in
a character class".

1 files changed, 5 insertions, 0 deletions

diff --git a/test/indent/js.js b/test/indent/js.js
index 1924094e9d8..2d458e1b769 100644
--- a/test/indent/js.js
+++ b/test/indent/js.js
@@ -7,6 +7,11 @@ let c = 1,
 var e = 100500,
     + 1;
 
+function test ()
+{
+     return /[/]/.test ('/')     // (bug#19397)
+}
+
 var f = bar('/protocols/')
 baz();