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Node.js custom PIPE object on createReadFileStream, createWriteFileStream
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| l = []; | |
| l.push('<body>'); | |
| if ($.a > $.b) { | |
| l.push('a > b'); | |
| }else{ | |
| l.push('a < b'); | |
| } | |
| l.push('</body>'); | |
| return l.join(''); |
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| // Load Module | |
| var util = require('util'), | |
| stream = require('stream'), | |
| http = require('http'), | |
| fs = require('fs'); | |
| // Custom Stream | |
| var CompileStream = function(data) { | |
| this.readable = true; | |
| this.writable = true; | |
| this.setDatas = data; | |
| } | |
| util.inherits(CompileStream, stream); | |
| CompileStream.prototype.write = function() { | |
| this._parse.apply(this, arguments); | |
| }; | |
| CompileStream.prototype.end = function() { | |
| this.emit("end"); | |
| }; | |
| CompileStream.prototype._parse = function(data) { | |
| data = data ? data.toString() : ""; | |
| data = Function('$,l', data)(this.setDatas); | |
| this.emit('data', data); | |
| }; | |
| CompileStream.prototype.setData = function(name, value) { | |
| this.setDatas[name] = value; | |
| }; | |
| // Make Web Server | |
| http.createServer(function(request, response) { | |
| var temp = fs.createReadStream("index-temp.js"); | |
| temp.setEncoding("utf8"); | |
| temp.pipe(new CompileStream({ | |
| a: 1, | |
| b: 2 | |
| })).pipe(response); | |
| }).listen(8888); |
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| <p>{{ data }}</p> |
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| var util = require('util'), | |
| fs = require('fs'), | |
| readStream = fs.createReadStream("n-test.html"); | |
| writeStream = fs.createWriteStream("test_c.txt"); | |
| var CompileStream = function() { | |
| this.readable = true; | |
| this.writable = true; | |
| this.template = 'var template = ""; template = function(data) { return "##RESLT##" }'; | |
| }; | |
| util.inherits(CompileStream, require('stream')); | |
| CompileStream.prototype.write = function() { | |
| this._parse.apply(this, arguments); | |
| }; | |
| CompileStream.prototype.end = function() { | |
| this.emit("end"); | |
| }; | |
| CompileStream.prototype._parse = function(data) { | |
| data = data ? data.toString() : ""; | |
| data = this.template.replace("##RESLT##", data); | |
| this.emit("data", data); | |
| } | |
| readStream.pipe(new CompileStream()).pipe(writeStream); |
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