Tab should insert 4 spaces in # comment lines

[v923z]

Hi All,

I don't know whether the behaviour of the tab is linked to CodeMirror as suggested by this issue #1287, but I believe the user should be able to use the tab to insert 4 spaces in a comment line. This does not work:

In []: # Tab

while this one does

In []: """
Tab Tab Tab...
"""

The first example tries to expand whatever is before the tabulator, even if there is nothing. I think it would be better to let the user insert tabulator white spaces in a comment, even if it is only a single line.

[twmr]

And how do you want to indent lines which start with a # character ?

I could imagine that if the cursor is before the # then TAB should indent the line and if it is after # it should insert spaces or a tab character.

[v923z]

I think this would be an elegant solution.

[v923z]

This could be achieved by inserting the following case into codecell.js

        if(pre_cursor.indexOf("#") != -1) {
            editor.replaceSelection("    ");
            editor.setCursor(cur+4);
            return true;
        } 
        else (pre_cursor.trim() === "") { ...

However, after this inserts the four whitespaces, it takes the cursor to the browser's address bar. Could someone tell how to keep the cursor in the cell?

[damianavila]

In current master, Tab already insert four spaces if you put the cursor before the #.
I think we can close this one.