Norihiro Tanaka wrote:
Even the pattern has no back-references, compilation by regex run for each line. So Syntax errors will be detected as even your present.
OK, but then I'm afraid I don't understand the motivation for the patch. Perhaps if you gave a self-contained example? The examples in the original bug report are incomplete because they're missing the pattern file; when I tried the first one I observed this:
$ yes 00000000000000000000000000000000000000000x | head -10 >in $ time -p env LC_ALL=C grep -f pat in grep: pat: No such file or directory real 0.00 user 0.00 sys 0.00
