Introduction

This is a tiny terminal text editor modified from uEmacs/PK 4.0, I call it Mdified Micro Emacs (me).

The script engine is removed. Concepts like paragraph and word are also removed. Serious bugs in increamental search and keyboard macro got fixed.

The incremental search of uEmacs/PK 4.0 have some problems:

1. It goes wrong on reverse search in certain situations.
2. It does not work well with keyboard macros.

ANSI CSI control sequences is used directly. We don't need extra libraries (like libncurses) to run this program.

Meta prefixed key bindings are removed. Ctrl is enough for everything.

UTF-8 support got removed and binary data is supported.

uEmacs/PK 4.0 will lost data when there is \0 in the file.

Build and Install

Build this program with a POSIX-compliant make.

make

To build on non-POSIX systems: (program is not supported yet)

make PLATFORM_OBJS=nonposix.o

Install:

sudo make install

To change the installation path:

sudo make install BIN=/usr/local/bin

Miscellaneous

We can make me the default editor of the system with update-alternatives:

To get the priority of editor:

update-alternatives --display editor

sudo update-alternatives --install /usr/bin/editor editor /usr/bin/me 100

If the priority 100 is still too low, set it manually:

sudo update-alternatives --set editor /usr/bin/me

Debug

There is a program showkey for getting raw input from terminal in the same way as me.

Build:

make showkey

Run:

./showkey

Tips

A keyboard remapper like this one is recommended to map Space to Ctrl on holding. This may be the most ergonomic way to use an Emacs-like editor with a Qwerty keyboard.