#Why history cannot handle multi-line command properly. It will break them into pieces. So you will never find a complete multi-line command when you are accessing the history using search.
#How
When you are editing a long command, hit CTRL-B. $EDITOR will pop out and
let you continue editing the command. After you finished, save and exit
$EDITOR, you will get your command in one line. Then your command is ready to
run.
#What
When hitting CTRL-B, split_lines.py is executed to split the current command
and try to split your command so that the line won't be too long to make you
easier to navigate.
When you exit your $EDITOR, join_lines.py is executed to replace \\n with
a space, and put them in your prompt.
#Install I wrote install.py to make it easier for you to install.
> git clone https://github.com/caiych/zsh-multi-line.git ~/zsh-multi-line
> ~/zsh-multi-line/install.py
If you don't trust me, just crack install.py. It's quite simple.