如何直接从htmlparser2获取JS上下文?
var parser = new htmlparser.Parser({
onopentag: function(name, attribs){
if(name === "script" && attribs.type === "text/javascript"){
//console.log(text);
//console.log("JS! Hooray!");
}
},
ontext: function(text){
//fs.writeFileSync("../output/test.js",text.toString());
console.log(text);
},
onclosetag: function(tagname){
if(tagname === "script"){
//console.log("That's it?!");
}
}
}, {decodeEntities: true});
var input_src = fs.readFileSync('../input/test2.js', 'utf-8');
parser.write(input_src);
parser.end();
我尝试从htmlparser2获取js,但内容不是我想要的。内容将包括一些其他信息期望 js。为什么代码不能很好地工作?你能给我一些解决它的好方法吗?
您没有执行任何操作来将ontext
函数限制为仅读取脚本。每当遇到打开脚本标记时,都需要设置一个标志:
var inScriptElement = false;
var parser = new htmlparser.Parser({
onopentag: function(name, attribs){
if(name === "script" && attribs.type === "text/javascript"){
inScriptElement = true;
//console.log(text);
//console.log("JS! Hooray!");
}
},
ontext: function(text){
if (inScriptElement) {
//fs.writeFileSync("../output/test.js",text.toString());
console.log(text);
}
},
onclosetag: function(tagname){
if(tagname === "script"){
inScriptElement = false;
//console.log("That's it?!");
}
}
}, {decodeEntities: true});