On Sat, May 31, 2025 at 10:45:17AM -0000, Stuart Henderson wrote: > ggrep does in this instance, but I don't know how reliable that is.
I had already forgotten about a problem I encountered with GNU grep under Linux while writing a shell script to process mbox files long time ago. Some of the messages in my mbox files were iso-latin encoded (Spanish,) since my locales were UTF-8, a grep command in a pipe at the end of my script printed the message "binary file matches" and removed from the output any line containing invalid UTF-8 sequences considering them garbage from a binary file. This is what still happens under Linux (\xed is latin-1 iacute): $ printf '\xedHello\n' > test $ grep Hello test grep: test: binary file matches $ LANG=C grep Hello test �Hello I mention this as a practical example of the trade-offs of using wide-character functions. -- Walter
