:codewalker: n. A program component that traverses other programs for
a living. Compilers have codewalkers in their front ends; so do
cross-reference generators and some database front ends. Other
utility programs that try to do too much with source code may turn
into codewalkers. As in "This new `vgrind' feature would require a
codewalker to implement."
-- The AI Hackers Dictionary