Hello, On Wed, Jan 17, 2018 at 02:53:21PM -0800, Eric Fischer wrote: > * My tr will not remove bytes from the middle of characters > [...] > is arguably an error in the test, because POSIX specifies that octal > escapes represent characters, not bytes.
Please see previous discussion here: https://lists.gnu.org/r/coreutils/2017-09/msg00026.html Where it was decided that backward-compatability (and preventing regression) is more important than POSIX's requirements. Specifying octal values in the SETs always reverts to unibyte processing. > * Linux and MacOS disagree about whether nonbreaking space is a space or a > graphic character [...] > is a portability problem > that should probably be solved by the use of a different character in the > test. That is a good point. Current tests have comments about the behaviour under Ubuntu/Glibc2.23. It would be beneficial to clearly document the behaviour under Mac OS X (and other BSDs). Also relevant: http://jkorpela.fi/chars/spaces.html . regards, - assaf
