Replace ^= with xor_eq
Replace iso646.h with cISO646
Replace ~ with compl
Replace ^ with xor
Replace |= with or_eq
Replace || with or
Replace != with not_eq
Replace some more != with not_eq
Replace && with and
Replace some more && with and
Replace &= with and_eq
Replace ! with not
Replace some more operators with words
Replace more ! with not
Replace some more ! with not
Replace even some more ! with not
Replace ! with not
Revert "Replace ! with not"

This reverts commit 749e6c47ab59c7ae8ee970ac2ffa4ad368dfc396.
Revert "Revert "Replace ! with not""

This reverts commit 1c2e7fd5b02ada6dfd06d4b2d901d239cd5a3644.
Delete !