如何在Xtext中编写自定义自动完成功能? [英] How to write custom autocompletion in Xtext?

问题描述

我只是找不到任何有关此的东西，只能找到编写自定义自动完成建议的资源，这不是我想要的(还是它)?

I just can't find anything about this, only sources about writing a custom autocompletion proposal, which is not what I want (or is it)?

语法

我们可以使用示例语法:

We can use the example syntax for this:

Model:
    greetings+=Greeting*;

Greeting:
    'Hello' name=ID '!';

问题

现在，当用户创建语法的新实例时，他必须

Now, when the user creates a new instance of the syntax, he has to

1. 写你好"(可以完成)
2. 要写一个空格
3. 现在可以自动完成名称= ID"

但这不是我想要的.

我想要的

1. 当用户完成"Hello"后，我希望其余部分都填充一个默认示例，例如:"Hello World"

这可能吗? 是否有一些资料来源? 对此进行研究的切入点在哪里? 我可以在完成后仅打印一些文本来存档吗?还是需要在示例中填充模型(在哪里可以做到这一点)?

Is this possible? Are there some source for this? Where is an entry point for looking into this? Can I archive this with just printing some text after the completion or do I need to fill the modell with an example (and where can I do this)?

推荐答案

查看文档中的模板提案"部分.或者在提案提供者

have a look at the section "templates proposals" in the docs. alternatively override complete_Greeting in the proposal provider

class MyDslProposalProvider extends AbstractMyDslProposalProvider {

    override complete_Greeting(EObject model, RuleCall ruleCall, ContentAssistContext context, ICompletionProposalAcceptor acceptor) {
        acceptor.accept(createCompletionProposal("Hello World!",context))
        super.complete_Greeting(model, ruleCall, context, acceptor)
    }

}

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