qapi/common: Fix guardname() for funny filenames

guardname() fails to return a valid C identifier for arguments
containing anything but [A-Za-z0-9_.-']. Fix that. Don't bother
protecting ticklish identifiers; header guards are all-caps, and no
ticklish identifiers are.

Backports commit f9c146399dabefb8cd13c9c467a9e710af15ea70 from qemu
This commit is contained in:
Markus Armbruster 2018-03-09 09:27:09 -05:00 committed by Lioncash
parent 1fb1d31a1f
commit c18d107804
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@ -1876,7 +1876,7 @@ def mcgen(code, **kwds):
def guardname(filename):
return c_name(filename, protect=False).upper()
return re.sub(r'[^A-Za-z0-9_]', '_', filename).upper()
def guardstart(name):