LingDong-

var unmark = (t)=>(t
    //escape tags
    .replace(/\\</g,"&lt")
    //tables
    .replace(/[\n\r^]((((.*\|)+.+)[\n\r$])((\||)((:|)\-+(:|)\|(:|))+\-+(:|)(\||)[\n\r])(((.*\|)+.+)[\n\r$])+)/g,'<p><table>\n$1</table></p>\n')
    .replace(/(\||)((:|)\-+(:|)\|(:|))+\-+(:|)(\||)[\n\r](?=((.*[\n\r])*<\/table>))/g,'')
    .replace(/(((.*\|)+.+))[\n\r$](?=((.*[\n\r])*<\/table>))/g,'  <tr>|$1|</tr>\n')
    .replace(/<tr>\|+(.*)\|+<\/tr>/g,'<tr> <td>$1</td> </tr>')
    .replace(/\|(?=((.+)<\/tr>))/g,'</td> <td>')
    //paragraph

LingDong-

/* 
 * LaTeX-skin.css
 * (c) Lingdong Huang 2018
 * Make your HTML look like it's typeset with LaTeX
 * 
 * Features:
 * - LaTeX look and feel, including its font Computer Modern;
 * - Automatic numbering of (sub)sections and figures;
 * - Print / export to PDF, (On macOS Safari/Chrome, File > Print)
 */

LingDong-

//
//  cli-ptcloud.c
//  - Lingdong Huang 2019
//  
//  View point clouds (.ply format) in commandline
//
//  Dependencies:
//  - curses (-lcurses, comes with most unix systems)
//  - rply (http://w3.impa.br/~diego/software/rply/, place in path below:
      #define RPLY_PATH "include/rply/rply.h"

LingDong-

// Wormhole.java
// Lingdong Huang 2021, Public domain
// Simple app to create "wormholes" connecting different displays:
// When cursor enters a black patch, it comes out from the other
// Idea inspired by this mac app "Wormhole by Tod LLC": https://macdownload.informer.com/wormhole1/
// I implemented the idea in java to work on Windows
//
// Usage:
// javac Wormhole.java; java Wormhole <x0> <y0> <x1> <y1>
// (arguments being the positions of the two holes)

LingDong-

// baseline PNG decoder in 400 lines
//
// - supports all color types: RGBA, RGB, gray+A, gray, paletted
// - supports all bit depths: 1, 2, 4, 8, 16 bits (color type dependant, per spec)
// - allways return RGBA(0-255) format: other color+bit combinations will be scaled
//    - downscaled 16-bit values retain floating point, e.g. 1000/65535 -> 3.89/255
// - support transparency palette / chroma-key
// - supports interlaced / non-interlaced
// - supports all zlib methods: non-compressed / fixed / dynamic huffman
// - supports all filters: none / sub / up / average / paeth

LingDong-

// baseline somewhat-compressing PNG writer in 150 lines
//
// - supports gray, gray+A, RGB, RGBA, bit depth : 8
// - uses "fixed" huffman codes of DEFLATE spec
// - compresses well for graphics with large "flat" areas,
//   basically pixel-wise run-length encoding translated to LZ77 style <len,dist>,
//   always filtered with SUB filter
// - writes IHDR, IDAT, IEND -- optional chunks can be
//   passed as function argument to be encoded (see example)
//

LingDong-

// a bare minimum, non-compressing PNG writer in 80 lines
//
// - supports gray, gray+A, RGB, RGBA, bit depth: 8 (0-255)
// - uses "non-compressed blocks" of DEFLATE spec
// - writes IHDR, IDAT, IEND -- optional chunks can be
//   passed as function argument to be encoded (see example)
//
// reference:
// - https://en.wikipedia.org/wiki/Portable_Network_Graphics
// - https://datatracker.ietf.org/doc/html/rfc1951

LingDong-

/* Poisson Filling for Processing
 *  Made possible with support from The Frank-Ratchye STUDIO For Creative Inquiry
 *  At Carnegie Mellon University. http://studioforcreativeinquiry.org/
 */

package poissonfill;

import processing.core.*;
import processing.opengl.*;
import java.util.*;

LingDong-

/*

bmprw.h

tiny .BMP image reader/writer in C99
with no memory allocations

reader supports:
- 1, 4, 8, 24, 32 bit depth, palette / no palette
- RLE4 / RLE8 compression / no compression

LingDong-

//
//  core_midi_synth.mm
//
//  a barebones midi synthesizer demo that calls
//  mac's low level API (CoreMIDI and CoreAudio) directly
//  (because I can't be bothered to compile other people's libraries)
//
//  with code fragments adapted from
//  - https://stackoverflow.com/a/7964300
//  - https://github.com/thestk/rtmidi