1
How I can prevent Emacs from saving my buffer when it contains syntax errors ?
It would by especially useful for editing source code.
I'm writing some source code into the buffer, hit C-x C-s and Emacs should position the cursor on the line containing the error. I'm correcting the error, hit the save command again, and Emacs should save the file.
astropanic
Posted 2010-03-05T08:18:20.747
Reputation: 227
1
My approach to this problem would be to rebind C-x C-s to astropanic-save-buffer which would be an elisp function that would run the contents of the current buffer through whatever your compiler/build process is. If it passed, it would run save-buffer and if there was an error it would create a new buffer/window split with the error message so you could fix it.
Consider also using the write-file-functions(more info) hook to attach workflow to save-buffer, but I'm wary of this on the grounds that while I might think that I'd want this in some modes, I wouldn't in all modes.
tychoish
Posted 2010-03-05T08:18:20.747
Reputation: 181
0
Emacs flymake mode may be close to what you want. It does dynamic compiling/syntax checking of source code for the current buffer.
luapyad
Posted 2010-03-05T08:18:20.747
Reputation: 335
1You do not say what sources you would like to check. There are different tools for different types. And ways these can be integrated into emacs. – Benjamin Bannier – 2010-03-05T17:05:28.810