In Vim how to switch quickly between .h and .cpp files with the same name?

Question

Suppose I have a folder with lots of .h and .cpp files. I frequently need to do the following:

1. open a file prefix_SomeReallyLongFileName.h,

Answer 1

According to the Vim wiki there are quite a few suggested ways.

I will outline a few options from the article:

• a.vim or FSwitch.vim plugins
• using ctags
• :e %<.c or :e %<.h. %< represents the current file w/o the extension
• A quick mapping nnoremap :e %:p:s,.h$,.X123X,:s,.cpp$,.h,:s,.X123X$,.cpp,. Add this to your ~/.vimrc.