app.js

(function() //-----
	{
		"use strict";

		console.log('app launched');
		var fs = require('fs');
		var path = require("path");
		//============================
		var settingsDefault;
		var settingsUser;
		var filenameDefault = path.join(__dirname, 'MarkdownLive.sublime-settings');
		var filenameUser =
			path.join(__dirname, '..', 'User', 'MarkdownLive.sublime-settings');

		var createSettingUserThenMarked = function()
		{
			var msg = '/*MarkdownLive: Settings - User\n' +
				'Edit this file and `MarkdownLive: Reload Server` from Command\n' +
				'Then Reload the WebBrowserViewer-> localhost:9999*/';

			var txt = msg + JSON.stringify(settingsDefault);

			var txt2 = require('js-beautify')
				.js_beautify(txt,
				{
					indent_size: 2
				});
			console.log(txt2);

			fs.writeFileSync(filenameUser, txt2);

			console.log('It\'s saved!');

			readSettingsUser();
			setMarked();
		};

		var readSettingsDefault = function()
		{
			var data = fs.readFileSync(filenameDefault, 'utf8');
			var data1 = data.replace(/\/\*[\s\S]+\*\/|\/\/.+/g, '');
			settingsDefault = JSON.parse(data1);

			console.log('---settingDefault----');
			console.dir(settingsDefault);

		};

		var readSettingsUser = function()
		{
			console.log(filenameUser);
			var data = fs.readFileSync(filenameUser, 'utf8');
			var data1 = data.replace(/\/\*[\s\S]+\*\/|\/\/.+/g, '');

			try
			{
				settingsUser = JSON.parse(data1);
			}
			catch (e)
			{
				console.log('settingsUser ParseError ->');
				createSettingUserThenMarked();
			}

			console.log('----settingUser------');
			console.dir(settingsUser);

		};

		readSettingsDefault();
		fs.exists(filenameUser, function(exists)
		{
			console.log(filenameUser);
			if (exists)
			{
				console.log('SettingsUser exist');
				readSettingsUser();
				setMarked();
			}
			else
			{
				console.log('SettingsUser no exist');
				createSettingUserThenMarked();
			}
		});

		var setMarked = function()
		{
			console.log('=====both Setting read========');

			var marked = require('marked');
			marked.setOptions(settingsDefault.markedSettings);
			marked.setOptions(settingsUser.markedSettings);
			marked.setOptions(
			{
				highlight: function(code)
				{
					var hljs = require('highlight.js');
					return hljs.highlightAuto(code)
						.value;
				}
			});

			var newlinesAsIs0 = settingsDefault.newlinesAsIs;
			var newlinesAsIs;
			console.log(settingsUser.newlinesAsIs)
			if (settingsUser.hasOwnProperty('newlinesAsIs'))
			{
				newlinesAsIs = settingsUser.newlinesAsIs;
				console.log('newlinesAsIs: newlinesAsIs=UserSetttings');
			}
			else
			{
				newlinesAsIs = newlinesAsIs0;
				console.log('newlinesAsIs: newlinesAsIs0=true');
			}

			console.log('newlinesAsIs: ' + newlinesAsIs);
			main(marked, newlinesAsIs);

			//============================
		};


		String.prototype.replaceAll = function(org, dest)
		{
			return this.split(org)
				.join(dest);
		};

		var hack = function(data0)
		{
			var data6 = data0.replace(/`\b(.*?)\b`(?!`)/g, '**$1**');
			var data7 = data6.replace(/(- [\s\S]+?)(?:\n\n)/g, '$1\n \n');
			var data8 = data7.replace(/(- [\s\S]+?)(?:\n \n\n)/g, '$1\n\n\n\n\n');
			var data9 = data8.replace(/\n \n(?=[^-])/g, '\n\n\n'); //ok
			var data = data9; //.replace(/\n\n(?=- )/g, '\n\n');

			var rxCodeG = /<code>[\s\S]+?<\/code>|<pre>[\s\S]+?<\/pre>|\n```+[\s\S]+?```+|\n- [\s\S]+?\n\n/g;
			var rxCode = /<code>[\s\S]+?<\/code>|<pre>[\s\S]+?<\/pre>|\n```+[\s\S]+?```+|\n- [\s\S]+?\n\n/;

			var codes = data.match(rxCodeG);
			var codeKey = 'thisistheCodeKey';
			var data1 = [];
			var data1L;
			if (codes)
			{
				codes.map(
					function() //ideally use return
					{
						var len = data1.length;
						var src;
						if (len === 0)
						{
							src = data;
						}
						else
						{
							src = data1[len - 1];
						}
						data1[len] = src.replace(rxCode, codeKey + len);
					});
				data1L = data1[data1.length - 1];
			}
			else
			{
				data1L = data;
			}

			var escape1 = 'thisisdummy3141592escape1';
			var escape2 = 'thisisdummy3141592escape2';
			var toReplace = '&nbsp;' + '\n\n';

			var data2 = data1L
				.replace(/(^|[^\n])\n(?!\n)/g, '$1' + escape1)
				.replace(/(^|[^\n])\n{2}/g, '$1' + escape2)
				.replace(/\n/g, toReplace)
				.replaceAll(escape1, '\n')
				.replaceAll(escape2, '\n\n' + toReplace);

			var data3 = [];
			var data3L;
			if (codes)
			{
				codes.map(
					function()
					{
						var len = data3.length;
						var src;
						if (len === 0)
						{
							src = data2;
						}
						else
						{
							src = data3[len - 1];
						}
						data3[len] = src.replace(codeKey + len, codes[len]);
					});
				data3L = data3[data3.length - 1];
			}
			else
			{
				data3L = data2;
			}

			return data3L;
		};
		//----------------------------
		var httpServer = function(dir)
		{
			var http = require('http');
			var fs = require('fs');
			var path = require("path");
			var url = require('url');

			var mimeTypes = {
				"html": "text/html",
				"jpeg": "image/jpeg",
				"jpg": "image/jpeg",
				"png": "image/png",
				"js": "text/javascript",
				"css": "text/css"
			};

			return http.createServer(function(req, res)
			{
				var uri = url.parse(req.url)
					.pathname;
				var filename = path.join(dir, unescape(uri));
				var indexFilename = path.join(dir, unescape('index.html'));
				var stats;

				console.log(filename);

				try
				{
					stats = fs.lstatSync(filename); // throws if path doesn't exist
				}
				catch (e)
				{
					res.writeHead(404,
					{
						'Content-Type': 'text/plain'
					});
					res.write('404 Not Found\n');
					res.end();
					return;
				}
				var fileStream

				if (stats.isFile())
				{
					// path exists, is a file
					var mimeType = mimeTypes[path.extname(filename)
						.split(".")[1]];
					res.writeHead(200,
					{
						'Content-Type': mimeType
					});

					fileStream =
						fs.createReadStream(filename)
						.pipe(res);
				}
				else if (stats.isDirectory())
				{
					// path exists, is a directory
					res.writeHead(200,
					{
						'Content-Type': "text/html"
					});
					fileStream =
						fs.createReadStream(indexFilename)
						.pipe(res);
				}
				else
				{
					// Symbolic link, other?
					// TODO: follow symlinks?  security?
					res.writeHead(500,
					{
						'Content-Type': 'text/plain'
					});
					res.write('500 Internal server error\n');
					res.end();
				}

			});
		};

		var HTTPserver =
			httpServer(path
				.join(__dirname, 'www'))
			.listen(8888, function()
			{
				console.log('HTTP listening 8888');
			});
		var TCPserver = require('net')
			.createServer()
			.listen(8889, function()
			{
				console.log('TCP listening 8889');
			})
			.on('connection', function(socket)
			{
				console.log('TCPsocket ---------');
				socket.pipe(require('through')
					(function(data)
					{ //----------------------------
						if (data.toString() === 'shutdown')
						{
							process.exit();
						}
						//--------------------------
					}));
				socket.end();
			})
			.on('end', function()
			{
				console.log('TCPsocket  ---------disconnected');
			});

		var main = function(marked, newlinesAsIs)
		{

			var shoe = require('shoe')(
				function(stream)
				{
					//TCPresponse(stream);
					TCPserver
						.on('connection', function(socket)
						{
							console.log('TCPsocket connected');
							//socket.pipe(process.stdout);
							socket.pipe(require('through')
								(function(data)
								{ //----------------------------
									var data1 = data.toString();

									var data2;

									console.log('newlinesAsIs: ' + newlinesAsIs);
									if (newlinesAsIs)
									{
										data2 = '<style type="text/css">p {margin: 0em}</style>' +
											marked(hack(data1));
									}
									else
									{
										data2 = marked(data1);
									}

									stream.write(data2);
									//--------------------------
								}));

							socket.end();
						})
						.on('end', function()
						{
							console.log('TCPsocket  disconnected');
						});
				})
				.install(HTTPserver, '/stream');
		};
		//---------------
	}());