Limit text field completion to a specific set of segments within Intellij Plugin

问题

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I was able to get code completion to work for a text field in my plugin based on the answer here: Text Field with Standard PsiElement Auto Completion in IntelliJ Plugin

But that's only a part of the problem. In my field I need to express plain text plus Java expressions e.g.:

This is plain text and here's a Java expression {myJavaObject.myMethod()} here's more text and a variable {var}

This is a pretty standard concept in Java. I'd like completion and syntax highlighting to only apply within the curly braces. Is this possible? If so how would one go about implementing this?

来源：https://stackoverflow.com/questions/59476930/limit-text-field-completion-to-a-specific-set-of-segments-within-intellij-plugin