Apel (Emacs)

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In computer programming, apel (the initialism represents "A Portable Emacs Library") provides support for writing portable code in Emacs Lisp. XEmacs features a version of apel called apel-xemacs. Computer programming (often shortened to programming or coding) is the process of designing, writing, testing, debugging / troubleshooting, and maintaining the source code of computer programs. This source code is written in a programming language. The code may be a modification of an existing source or something completely new. The purpose of programming is to create a program that exhibits a certain desired behaviour (customization). The process of writing source code often requires expertise in many different subjects, including knowledge of the application domain, specialized algorithms and formal logic.