CountColumn() method is mainly used to count number of text for indentation.
Then indentation is only created by half-width space or tab.
But regular expression in
countColumn() method also counts spaces other than half-width space or tab.
In my case:
I want to write
\u3000（full-width space） on head of all lines when writing Japanese text.
\u3000 is included in
For the reason, CodeMirror indents next line for half-width space.
However that I need is No-indent or Full-width space indent.
I suppose that appropriate regular expression is
Is there any other way?