Replace chinese comma "，" with ", " seaminglessly.

subl-replace-comma.py

import sublime, sublime_plugin

have_a_rest = False

class FixCjkCommaListener(sublime_plugin.TextChangeListener):
    def on_text_changed(self, changes):
        global have_a_rest
        if len(changes) != 1 or have_a_rest: return
        c = changes[0]
        if c.str != '，': return
        i = c.b.pt
        v = sublime.active_window().active_view()
        if i and v:
            have_a_rest = True
            v.run_command("fix_cjk_comma", { 'pt': i })

class FixCjkComma(sublime_plugin.TextCommand):
    def run(self, edit, pt=-1):
        sublime.set_timeout(self.recover, 500)
        self.view.replace(edit, sublime.Region(pt, pt + 1), ", ")

    def recover(self):
        global have_a_rest
        have_a_rest = False