在Emacs中突出显示Java中使用的'bool'

Question

I switch back and forth between Java and C++ in my current job, and as a result I tend to use 'bool' in Java instead of 'boolean'. I program in Emacs, which highlights 'bool' in a declaration the same as any other type, so I don't tend to catch the error until compile time.

Is there any way to get java-mode to highlight 'bool' for me so that I can catch the error while I'm writing the code?

Answer 1

Add this to your .emacs:

(font-lock-add-keywords 'java-mode
        '(("\\<bool\\>" . font-lock-warning-face)))

Answer 2

The easiest is perhaps

M-x highlight-regexp RET
\_<bool\_> RET
font-lock-warning-face RET

You can certainly add this to the java-mode-hook too. Downside is, of course, this method provides no syntactic checking and will highlight also in strings and comments...