Preface

For solving the tasks given by the lecture usually the usage of an integrated development environment (IDE) is overkill. This page presents a few simpler editors focusing on vim which is used by Prof. Dr. Hannah Bast.

Vim

Vim is a comandline based editor with explicit modes. In insert mode text can be written as in any other editor. However in command mode operations like search, write file or close can be performed.

The vim of Prof. Dr. Hannah Bast is personalized with a version from 2010 downloadable. This file has to be placed in the home-directory as .vimrc on linux and _vimrc in windows.

Changing modes and help

ESC exits insert mode and enters command mode. If already in command mode nothing happens.
i (in command mode) enters insert mode.
:help (in command mode) displays a help file inside vim.

Useful commands

File and generic commands
:e <filename>	Open <filename>
:w	Write current file
:w <filename>	Write current file as <filename>
:q	Exit the editor if only one file is open. If the current file is modified this will fail with an error message. If multiple files are open, only the active one will be closed.
:wq / :x	Combined write and quit, alternatively exit.
:q!	Close the file without saving changes.
:sp <file>	Horizontal split, opening an additional file below the current file.
:tabnew <file>	Opens <file> as a browser like tab.

Basic editing commands
yy	Copies current line
nyy	Copy n lines
p / P	Past previously copied line(s) below / above
dd	Delete current line
ndd	Delete n lines
dw	Delete until the next word
cw	Delete until next word and change mode to insert mode
o / O	Create a new line below / above and change to insert mode

Viewcommands
:v	Change to visual mode
:se nu / :set number	Show line numbers
:se nonu / :set nonumber	Hide line numbers
:so $VIMRUNTIME/syntax/cpp.vim	C++ syntax highlighting
Ctrl+W <Arrow up>	Switch to pane above
Ctrl-K	Switch to pane above and maximize it (only available with the .vimrc)
Ctrl+W <Arrow down>	Switch to pane below
Ctrl-M	Switch to pane below and maximize it (only available with the .vimrc)
Ctrl+W _	Maximize current pane
F4	Switch between .h und .cpp file. File has to be saved (only available with the .vimrc)
Ctrl-Page Up/Down	Switch between browser style tabs