arch: Improve the regular expression that finds operands.

This regular expression currently has a negative lookbehind assertion
that the operand name isn't preceded by any numbers or letters. Expand
that to also include the : character, since no operand should have a
namespace specifier in front of it.

Change-Id: I0bd84b69b9dad278191831d82db762ae75ce4bf1
Maintainer: Gabe Black <>
Reviewed-by: Giacomo Travaglini <>
Tested-by: kokoro <>
1 file changed