Vim

Configuration: vimrc

Normalise 4-spaced code to tabbed code... This may require some supervision...

:%s/^\(\t*\)    /\1\t/gc

Registers

Source

Registers in Vim let you run actions or commands on text stored within them. To access a register, you type "<a> before a command, where <a> is the name of a register. If you want to copy the current line into register k, you can type

"ky

Or you can append to a register by using a capital letter

"Ky

You can then move through the document and paste it elsewhere using

"kp

To access all currently defined registers type

:reg