我有一个我创建的代码生成器，我希望能够在服务器上运行它。生成器使用纯本机ECMA6 javascript来呈现HTML标记。
'use strict'
class JSML {
constructor(stdIn) {
this.output = '';
this.parse(stdIn);
return this.output;
}
generateAttributeKeyValueString(key, value) {
return `${key}='${value}'`;
}
camelCaseToDashes(str) {
return str.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();
}
generateDom(vNode) {
var self = this,
selfClosingTagNames = ['area','base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input', 'keygen', 'link', 'meta', 'param', 'source', 'track', 'wbr'],
elmStart = `<${vNode.elm}`,
elmAttrs = '',
elmEnd,
elmContent,
inSelfClosingTagBool = false;
selfClosingTagNames.forEach(function(selfClosingTagName) {
if (vNode.elm === selfClosingTagName) {
inSelfClosingTagBool = true;
}
else elmEnd = `</${vNode.elm}>`;
});
function parseInput(vNode, key) {
if (!vNode.hasOwnProperty(key)) return;
var value = vNode[key],
// custom types conditons depending on the key and value of the nodes contents
isActualInnerValueChildContents = (key === 'inner' && typeof value === 'string'),
isChildrenContentArr = (key === 'inner' && Array.isArray(value)),
isSingleChildContent = (key === 'inner' && !isChildrenContentArr && (typeof value === 'object')),
isAttributeKeyValuePair = (key !== 'elm' && key !== 'inner');
if (isActualInnerValueChildContents) elmContent = value;
else if (isAttributeKeyValuePair) elmAttrs += self.generateAttributeKeyValueString(self.camelCaseToDashes(key), value); // Otherwise its an attribute and value pair and should be added to the node string
else if (isChildrenContentArr) {
//Array of multiple child nodes
elmContent = '';
value.forEach(function(subValue) {
elmContent += JSML.run(subValue).output;
});
}
else if (isSingleChildContent) elmContent = JSML.run(value).output;
}
for (var key in vNode) parseInput(vNode, key);
if (inSelfClosingTagBool) {
elmStart += ` ${elmAttrs}/>`;
inSelfClosingTagBool = false;
elmEnd = '';
}
else elmStart += ` ${elmAttrs}>`; // Close off the html elements start tag now that all possible attributes have been written
if (elmContent) this.output = elmStart + elmContent + elmEnd
else this.output = elmStart + elmEnd
}
parse(input) {
var self = this;
self.generateDom(input);
}
}
JSML.run = function(appCode, target) {
var defaultTarget = 'body',
dom = new JSML(appCode);
document.querySelectorAll(target || defaultTarget)[0].innerHTML = dom.output;
return dom;
}
我希望在NodeJS上利用它，但如果可能的话，没有完全重写（我意识到需要一些fs代码等）。我想将脚本与文件系统包装器一起使用，以及用于将输出直接发送到浏览器以进行呈现的接口。
我使用了Node with Express和其他一些框架，但总是涉及中间件。我希望做什么？
如果是这样的话？
我能够使用npm简单HTTP服务器进行进一步研究后运行它的简单版本，通过读取此线程读取静态HTML我的脚本输出：使用node.js作为简单的Web服务器，与此一起使用thread在Node.js中编写文件，用于将我的脚本输出写入HTML文件。但是主库不会运行。
这是我尝试过的代码：
var fs = require('fs');
var _typeof = typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol' ? function (obj) {
return typeof obj;
} : function (obj) {
return obj && typeof Symbol === 'function' && obj.constructor === Symbol ? 'symbol' : typeof obj;
};
function _classCallCheck(instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError('Cannot call a class as a function');
}
}
var JSML = function () {
'use strict';
function JSML(stdIn) {
_classCallCheck(this, JSML);
this.output = '';
this.parse(stdIn);
return this.output;
}
JSML.prototype.generateAttributeKeyValueString = function generateAttributeKeyValueString(key, value) {
return key + '=\'' + value + '\'';
};
JSML.prototype.camelCaseToDashes = function camelCaseToDashes(str) {
return str.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();
};
JSML.prototype.generateDom = function generateDom(vNode) {
var self = this, selfClosingTagNames = [
'area',
'base',
'br',
'col',
'command',
'embed',
'hr',
'img',
'input',
'keygen',
'link',
'meta',
'param',
'source',
'track',
'wbr'
], elmStart = '<' + vNode.elm, elmAttrs = '', elmEnd, elmContent;
selfClosingTagNames.forEach(function (selfClosingTagName) {
if (vNode.elm === selfClosingTagName)
elmEnd = '';
else
elmEnd = '</' + vNode.elm + '>';
});
function parseInput(vNode, key) {
if (!vNode.hasOwnProperty(key))
return;
var value = vNode[key], isActualInnerValueChildContents = key === 'inner' && typeof value === 'string', isChildrenContentArr = key === 'inner' && Array.isArray(value), isSingleChildContent = key === 'inner' && !isChildrenContentArr && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object', isAttributeKeyValuePair = key !== 'elm' && key !== 'inner';
if (isActualInnerValueChildContents)
elmContent = value;
else if (isAttributeKeyValuePair)
elmAttrs += self.generateAttributeKeyValueString(self.camelCaseToDashes(key), value);
else if (isChildrenContentArr) {
elmContent = '';
value.forEach(function (subValue) {
elmContent += JSML.run(subValue).output;
});
} else if (isSingleChildContent)
elmContent = JSML.run(value).output;
}
for (var key in vNode){
if (vNode.hasOwnProperty(key)) parseInput(vNode, key);
}
elmStart += ' ' + elmAttrs + '>';
if (elmContent)
this.output = elmStart + elmContent + elmEnd;
else
this.output = elmStart + elmEnd;
};
JSML.prototype.parse = function parse(input) {
var self = this;
self.generateDom(input);
};
return JSML;
}();
JSML.run = function (appCode, target) {
var defaultTarget = 'body', dom = new JSML(appCode);
document.getElementsByTagName(target || defaultTarget)[0].innerHTML = dom.output;
return dom;
};
fs.writeFile("index2.html", JSML.run({
elm: 'img',
src: 'http://placehold.it/50x50'
}, function(err) {
if(err) {
return console.log(err);
}
console.log("The file was saved!");
});
我一直得到＆＃34;意外的令牌;＆＃34;在generateView.js中，如98
主要思想是我需要在我的服务器上运行JavaScript，生成提供从我的脚本生成的内容所需的标记，以便只说端口80.
谢谢，我愿意接受任何有用的建议。
答案 0 :(得分：0)
如果我理解，只需将您的代码放入js文件，例如script.js。并运行node script.js
也许你必须将你的课程包装到模块中，这是开始学习的好点https://nodejs.org/api/modules.html
或者如果您想要服务器，请尝试Express js：
const express = require('express');
const app = express();
const JSML = express('./JSML'); // <--- your module
let jsml = newJSML();
app.get('/home', function(req, res){
res.send(jsml.run());
});
app.listen(80);