Problems with Mac native keyboard input

1. When we use the regular control of the contents of the input box (such as: cannot enter special character replace (/[^a-za-z0-9,\u4e00-\ufa29]/g, "");

1.1 When you enter a multi-time input box will be more populated characters, when processing special characters with a delay is good, using settimeout (function () {},100);

1.2 When entering special characters, it will be a substitution procedure, if I replace this special character before replacing, the input method will delete the last character.

1.3

Problems with Mac native keyboard input