如何忽略Eclipse中的节点shebang错误? [英] How to ignore node shebang error in Eclipse?

问题描述

我正在编写一些节点命令行实用程序.它们都以以下行开头:

#!/usr/bin/env node

使用Eclipse Juno和Nodeclipse Node.js插件，此行代码将产生错误，如下所示:

好，因此#在javascript中不是有效的注释字符，但是在Linux/UNIX中，作为文件第一行的 shebang ，它是有效的字符.但是，如何设置Eclipse以忽略此错误?这对我来说是个问题，因为如果您遇到错误，则代码格式化将不起作用.我必须删除该行.按下 CTRL-SHIFT-F 并将行添加回去.

我尝试了很多事情并进行了研究，但找不到答案.

那里有一个重复的问题，在hashbang行上出现eclipse javascript语法错误，但我的问题有更多信息.

好像在 jshint中添加了一些内容，以允许第一行中的字母爆炸 .也许我需要更新我的node-eclipse，或者也许node-eclipse项目需要更新jshint?

• 我的jshint eclipse集成是0.9.6版.
• 我的nodeclipse是0.4.0.20130519 ...

我升级到

• jshint eclipse集成0.9.9.20131029
• nodeclipse 0.7.0.20131101

那没有帮助.

这是我的Eclipse JSHint版本:

感谢您的答复VonC.但是我认为这表明我的文件中没有BOM.还有其他想法吗?

$ od -N 20 -t x1 hello.js
0000000 23 21 2f 75 73 72 2f 62 69 6e 2f 65 6e 76 20 6e
0000020 6f 64 65 0a
0000024

关于下面Paul Verest的回答，我试图关闭JSDT验证，但是我似乎做不到.我未选中启用JavaScript语义验证"(在Eclipse中，请参阅窗口">首选项">"JavaScript">验证器">错误/警告")，但是问题仍然存在.

我现在正在卸载 Eclipse Web Developer Tools 3.4.2 .似乎没有帮助，现在我的CSS和HTML编辑器不见了.现在，我尝试通过遵循以下SO问题中的一些想法来禁用JSDT验证:

编辑4，答案

这并不容易，但是我最终还是在Eclipse中入侵了.project文件.我有这个:

<natures>
    <nature>org.nodeclipse.ui.NodeNature</nature>
    <nature>org.eclipse.wst.jsdt.core.jsNature</nature>
</natures>

我删除了jsdt性质，现在shebang行上的错误消失了！我在测试项目和实际项目中都这样做.有效！这实际上非常有用，因为我可以格式化文件，并且现在正在实际运行jshint.

解决方案

在Eclipse中有两种JavaScript验证选项:

• JSDT
• JSHint(自Nodeclipse 0.7起默认)

由于配置是按项目存储的，请从用0.7创建的项目中复制.*设置文件，或手动重新配置(只需将.*文件与新创建的项目进行比较). 然后把.jshintrc文件像 https://github.com/Nodeclipse/nodeclipse-1/blob/master/org.nodeclipse.ui/templates/.jshintrc

尝试检查 JSHint选项(如果可能).

请注意，在使用JSHint的情况下，~~此问题成为一般的JSHint问题(与Eclipse或Nodeclipse不相关).

更新:

从0.7开始

.project的内容:

<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
    <name>ProjectName</name>
    <comment></comment>
    <projects>
    </projects>
    <buildSpec>
        <buildCommand>
            <name>com.eclipsesource.jshint.ui.builder</name>
            <arguments>
            </arguments>
        </buildCommand>
    </buildSpec>
    <natures>
        <nature>org.nodeclipse.ui.NodeNature</nature>
        <nature>org.eclipse.wst.jsdt.core.jsNature</nature>
    </natures>
</projectDescription>

@Jess发现这是JSDT(而不是JSHInt)显示的错误， 因此删除<nature>org.eclipse.wst.jsdt.core.jsNature</nature>将会阻止JSDT显示它(即使从0.7开始就已经关闭了JavaScript语义验证)

更新3:

删除<nature>org.eclipse.wst.jsdt.core.jsNature</nature>的缺点将是代码辅助和点击到定义将不起作用(实际上在定义JSDoc的极少数情况下有效，例如eclipse javascript syntax error on hashbang line, but my question has more info.

EDIT:

Looks like there was something added to jshint to allow shebangs in the first line. Maybe I need to update my node-eclipse, or maybe the node-eclipse project needs to update jshint?

• My jshint eclipse integration is version 0.9.6.
• My nodeclipse is 0.4.0.20130519...

I upgraded to

• jshint eclipse integration 0.9.9.20131029
• nodeclipse 0.7.0.20131101

That did not help.

Here is my JSHint version in eclipse:

EDIT 2:

Thanks for the answer VonC. But I think this shows that I do not have a BOM in the file. Any other ideas?

$ od -N 20 -t x1 hello.js
0000000 23 21 2f 75 73 72 2f 62 69 6e 2f 65 6e 76 20 6e
0000020 6f 64 65 0a
0000024

EDIT 3:

With regard to Paul Verest's answer below, I tried to turn off JSDT validation, but I can't seem to do it. I unchecked "Enable JavaScript semantic validation" (In Eclipse, see Window > Preferences > JavaScript > Validator > Errors/Warnings), but the issue remains.

I am now uninstalling Eclipse Web Developer Tools 3.4.2. That did not seem to help and now my CSS and HTML editors are gone. Now I have tried to disable JSDT validation by following some of the ideas in this SO question, How do I remove javascript validation from my eclipse project?.

So I went into my project properties and went to JavaScript > Validation. I have set everything to "Enabled project specific settings" and unchecked "Errors/Warnings", "JSDOC", etc. Even so, I think validation is still running since the problem persists! My "Builders" Properties only lists the "JSHint Problem Checker" which is enabled. (I am doing all this on a new test project with a hello.js).

EDIT 4, THE ANSWER

It was not easy, but I ended up hacking the .project file in Eclipse. I had this:

<natures>
    <nature>org.nodeclipse.ui.NodeNature</nature>
    <nature>org.eclipse.wst.jsdt.core.jsNature</nature>
</natures>

I removed the jsdt nature and now the error on the shebang line is GONE! I did this in my test project and my real project. It worked! This is actually pretty helpful since I can format the file and I'm actually running jshint now.

解决方案

There are 2 option for JavaScript validation in Eclipse:

• JSDT
• JSHint (default since Nodeclipse 0.7)

As configration is stored per project, copy .* settings files from project created with 0.7 or re-configure it manually (just compare .* files with newly created project). Then put .jshintrc file like https://github.com/Nodeclipse/nodeclipse-1/blob/master/org.nodeclipse.ui/templates/.jshintrc

Try to check JSHint options, if it is possible.

Note that with JSHint usage, ~~this question becomes general JSHint question (not Eclipse or Nodeclipse related).~~

UPDATE:

.project content since 0.7 :

<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
    <name>ProjectName</name>
    <comment></comment>
    <projects>
    </projects>
    <buildSpec>
        <buildCommand>
            <name>com.eclipsesource.jshint.ui.builder</name>
            <arguments>
            </arguments>
        </buildCommand>
    </buildSpec>
    <natures>
        <nature>org.nodeclipse.ui.NodeNature</nature>
        <nature>org.eclipse.wst.jsdt.core.jsNature</nature>
    </natures>
</projectDescription>

As @Jess discovered this was error shown by JSDT, not JSHInt, so removing <nature>org.eclipse.wst.jsdt.core.jsNature</nature> will stop JSDT from displaying it (even with JavaScript semantic validation already turned off since 0.7)

UPDATE 3:

Drawback of <nature>org.eclipse.wst.jsdt.core.jsNature</nature> removed will be that code assist and click-though to definition will not work (It actually works in rare cases when JSDocs are defined e.g. http://www.nodeclipse.org/nodejs/javascript/sources/books/2013/10/22/JSDT-require-JSDoc.html or within 1 .js file)

Even click-through to definition

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