How to implement a programming language (tutorial for beginners)
How to implement a programming language in JavaScript This is a tutorial on how to implement a programming language. If you ever wrote an interpreter or a compiler, then there is probably nothing new for you here. But, if you're using regexps to “parse” anything that looks like a programming language, then please read at least the section on parsing. Let's write less buggy code! The ToC on the rig
Source maps for Emacs
Source maps turn out to be a handy tool not only for debugging minified code, but also for debugging the minifier ;-) My use case is this: (1) minify a big JS code, but request indented output. Then open that uglified code in Emacs and look at it, tryin' to figure out if compression is correct or wrong, and how could I make it better. It's extremely useful at this point if I could quickly jump to
Ymacs -- AJAX source code editor with syntax highlighting and automatic indentation
Ymacs is an Emacs-like editor that works in a browser. This is an old project, but it still works very well. There was a major overhaul in 2024 so I wouldn't call it dead yet. Besides a lot of fixes and new features, an important change is that Ymacs is now standalone (no longer depends on thelib.js). Here is an instance with some HTML code from this very page. Try various editing commands, but fi
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