设置Ace编辑器的值时保留缩进

Question

How can you preserve the indentation of a string that is push into Ace editor by .setValue() ? Now, when I push a string into the editor, all the indentation is lost and it has this weird typewriter spacing: assuming the typewriter is | if

string to edit here with four space->    |

if I press backspace,:

string to edit here with four space-   |

I dont know why this happen, please help

Answer 1

Looks like Ace calculates wrong cursor position.
This can happen either if your editor have non monospace font.
Or because of this bug if you are using Safari on Mac OS X 10.8