Rather than overthink it at this stage, just use bufio.Scanner and strings.Contains() and see what performance is like. I suspect that for a plain string and a large-ish file it will be about as good as it gets.
On Sunday, 8 May 2022 at 09:36:15 UTC+1 Tamás Gulácsi wrote: > If that "100s of MB" is acceptable to be in memory, then bufio.Scanner > with properly sized scanner.Buffer is the easiest and battle tested > solution. > > If not, then you have to reimplement the same, with a temp file as a > buffer: read input, store in file, seeking to the start on each '\n', > copying the file to STDOUT when "test" is found. > Not too hard, but have a few edge cases. > Const V a következőt írta (2022. május 7., szombat, 22:40:58 UTC+2): > >> I need to write a program that reads STDIN and should output every line >> that contains a search word "test" to STDOUT. >> >> How I can test that considering the problem is a line can be 100s of MB >> long (\n is line end) and tens of MB info is passed to it. >> > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/7497c428-810e-4aad-8c34-86b59134f009n%40googlegroups.com.
