Some utilities written by me

May not be useful for you. For educational purposes.

SHELX-mode.el: A mode for edit SHELX (http://shelx.uni-goettingen.de/) files.
astyle-utils.el: Use astyle in Emacs.
hexo-utils.el: Use Hexo more efficiently.
emoji.el: Emoji input method. Not working.
bc-mode.el: Use GNU bc in Emacs.

License

The license is GPLv3 for code written by me.