Category Archives: Emacs

How to make prettify-symbols-mode work with AUCTeX

Posted on November 15, 2016 by Jisang Yoo

prettify-symbols-mode is a recent feature of Emacs and it’s very nice. And it looks like it can replace TeX-fold-mode in the future. But, at the time of writing, prettify-symbols-mode doesn’t seem to work well with AUCTeX unless you enable two … Continue reading →

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why learn elisp (Emacs Lisp)

Posted on November 6, 2014 by Jisang Yoo

This post is the intro module of Living with Emacs Lisp. The goal of this post is to hopefully convince you why you should learn elisp. Readers are assumed to be beginning users of Emacs. (Of course he who does … Continue reading →

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Type backslash easily in Emacs AUCTeX

Posted on November 4, 2014 by Jisang Yoo

Table of Contents 1. type slash to type backslash 2. use the two commands Writing LaTeX documents seem to require many presses of backslashes and the backslash key is located at awkward place and hard to type in some types … Continue reading →

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Lisp lists and destructive functions

Posted on August 3, 2014 by Jisang Yoo

Table of Contents 1. nil and non-nil 2. cons cell 3. cons cells in diagrams 4. lists 5. improper lists and proper lists 6. check for empty list, non-empty list, list 7. sequence 8. literal list 9. shared structure 10. … Continue reading →

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Names and things (reference semantics) vs. boxes and things (value semantics)

Posted on July 26, 2014 by Jisang Yoo

Table of Contents 1. Motivation 2. Alfie Bobbie thought experiment 3. The aa bb experiment (back to Snippet 20) 4. Boxes containing object references 5. Two different meanings of change 6. Pass by value or pass by reference 7. With … Continue reading →

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It is not hard to edit Lisp code

Posted on July 20, 2014 by Jisang Yoo

Table of Contents 1. Intro 2. Which editor or IDE to use 3. The three phases 4. Always indent. 5. Evaluate! 6. One liners 7. Breaking lines 8. Joining lines 9. Placement of close parens 10. The “No red tape” … Continue reading →

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It is not hard to read Lisp code

Posted on July 4, 2014 by Jisang Yoo

Table of Contents 1. Intro 2. Tree view 3. Terminology 3.1. Emacs Lisp note 3.2. Common Lisp note 4. Variations 5. How to find where the expression ends. 6. Some difference from Python 7. Tools 8. Logical operators being used … Continue reading →

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Checking Windows version with Emacs Lisp

Posted on June 27, 2014 by Jisang Yoo

elisp code example for programmatically checking the version of Microsoft Windows on which Emacs is running: (when (eq system-type ‘windows-nt) (print “Hello, MS Windows.”) (let ((winversion (when (string-match (rx “nt” (group (+ digit)) “.” (group (+ digit)) “.” (+ digit) … Continue reading →

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How to associate text file type with Emacs on Ubuntu

Posted on May 19, 2014 by Jisang Yoo

Table of Contents 1. background 2. create a new desktop file 3. why use a desktop file 4. On two environment variables EDITOR and VISUAL 1. background MS Windows users might want to see this link instead for how to … Continue reading →

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how to list emacs package dependencies

Posted on May 16, 2014 by Jisang Yoo

Table of Contents 1. how to see one-level dependencies of a package 2. how to programmatically collect the names of all the required packages for a given set of packages For now there is no command or function that recursively … Continue reading →

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