hig/lib/compilers.js

HiG server

var fs = require('fs'),
	dirname = require('path').dirname,
	less = require('less'),
	stylus = require('stylus'),
	handlebars = require('handlebars'),
	fileutils  = require('./fileutils'),
	higLess  = require('./less'),
	compilers = {};

compilers.styl = function(path) {
	var content, result = '';
	content = fs.readFileSync(path, 'utf8');
	stylus(content).include(dirname(path)).render(function(err, css) {
		if (err) {
			throw err;
		}
		return result = css;
	});
	return result;
};

require.extensions['.styl'] = function(module, filename) {
	var source;
	source = JSON.stringify(compilers.styl(filename));
	return module._compile("module.exports = " + source, filename);
};

compilers.less = function(path) {
	var ee, parseFn, lessParser,
		content = fs.readFileSync(path, 'utf8');
	//console.log(higLess);
	lessParser = new(less.Parser)({
		paths: [,
			higLess.path,
			dirname(path)
		]
	});
	parseFn = function(callback, compress) {
		lessParser.parse(content + "//" + Math.random(), function (err, tree) {
			var css = !err && tree.toCSS({
				compress: compress || false
			}), ext = [];
			if (css) {
				//exend: .test;
				css = css.replace(/((?:[\.#][\w\_][\w\d\-\_]+\s*)+)(\{[^\{]+)(?:extend|ext)\s*\:\s*["']*([\.#][\w\_][\w\d\-\_]+)["']*\s*\;*[\s\r\n\t]*([^\}\{\.]+\})/g, function($0, $1, $2, $3, $4) {
					//console.log(arguments);
					var classSelect = $1;
					ext.push([$1, $3]);
					$2 = $2.replace(/[\s\r\n\t]*(?:extend|ext)\s*\:\s*["']*([\.#][\w\_][\w\d\-\_]+)["']*\s*\;*/g, function($0, $1) {
						//console.log(arguments);
						ext.push([classSelect, $1]);
						return "";
					});
					return $1 + $2 + $4;
				});
				if (ext.length) {
					ext.forEach(function(val, index) {
						var reg = new RegExp('(^|\\r|\\n|\\}|,)([\\s\\t]*' + val[1].replace(/(\.|\s|\-)/g, function($0, $1) {
							return '\\' + $1;
						}) + ')((?:(?:[^\\w\\d\\-_,\\{]*)|(?:\\s[^\\{\\,]+)))([\\{,])', "g");
						//console.log(reg);
						css = css.replace(reg, function($0, $1, $2, $3, $4) {
							//console.log(arguments);
							return ($1 + $2 + $3 + "," + val[0] + $3 + $4).replace(/\s+,/g, ",").replace(/\s\s+/g, " ");
						});
					});
				}
				/*
				css = css.replace(/\.extendstart\s*\{[\s\r\n]*extend\:\s*1;[\s\r\n]*\}[\s\r\n]*((?:.|\n|\r)*?)[\s\r\n]*\s*\.extendend\s*\{[\s\r\n]*extend\:\s*1;[\s\r\n]*\}/g, function($0, $1) {
				    //\.extendend\s*\{[\s\r\n]*extend\:\s*1;[\s\r\n]*\}
					//console.log(arguments);
					$1 = $1.replace(/[\r\n\}]+[^\{]+\,[^\{]+\s([^\{]+)/g, function($0, $1){
				        var path = $1.replace(/\s+$/, '');
				        return $0.replace(/([^\}\,]+)\,/g, "$1 " + path + ",");;
				    });
					return $1;
				});*/
				css = css.replace(/\/\*[\s\r\n\{]*(extend|replace)\s*:\s*1\;[\s\r\n\}]*\*\//g, "");
			}
			callback(err && JSON.stringify(err), css && css, path);
		});
	}
	return parseFn;
};

require.extensions['.less'] = function(module, filename) {
	var source,
		ee = compilers.less(filename);
	module.exports = ee;
	return module;
};

compilers.hdb = function(path) {
	var content, template,
		dirPath = compilers.hdbPartialPath || path.replace(/[^\/]+$/, "");
	content = fs.readFileSync(path, 'utf8');
	template = handlebars.compile(content);
	content && content.replace(/\{\{>\s+([^\}]+)\}\}/g, function($0, $1) {
		var name = $1.replace(/\./, "/"),
			parPath = dirPath + name + ".hdb",
			partial = "\nPartial 404: " + name + " Not Found";
		if (fileutils.isFile(parPath)) {
			partial = fs.readFileSync(parPath, 'utf8');
		}
		handlebars.registerPartial(name, partial);
	});
	return template;
};

compilers.hdbPartialPath = "";

require.extensions['.hdb'] = function(module, filename) {
	var template = compilers.hdb(filename);
	module.exports = template;
	return module;
};
/*
var source = "<p>Hello, my name is {{name}}. I am from {{hometown}}. I have " + 
             "{{kids.length}} kids:</p>" +
             "<ul>{{#kids}}<li>{{name}} is {{age}}</li>{{/kids}}</ul>{{> per.son}}";
var template = handlebars.compile(source);
handlebars.registerPartial("per.son", handlebars.compile("ssdsd {{name}} s")); 

var data = { "name": "Alan", "hometown": "Somewhere, TX",
             "kids": [{"name": "Jimmy", "age": "12"}, {"name": "Sally", "age": "4"}]};
var result = template(data);
console.log(result);
*/
module.exports = compilers;