p.s. If you changed the above code to use strings rather than []byte
it would run many times slower due to the cost of allocation.
On Saturday, 7 May 2022 at 22:49:08 UTC+1 Amnon wrote:
> How about something like
>
> func grep(pat []byte, r io.Reader, w io.Writer) error {
> scanner := bufio.NewScanner(r)
> for scanner.Scan() {
> if (bytes.Contains(scanner.Bytes(), pat)) {
> w.Write(scanner.Bytes())
> }
> }
>
> return scanner.Err()
> }
>
> and for extra speed, just allocate a bigger buffer to the scanner...
> On Saturday, 7 May 2022 at 21:46:33 UTC+1 Jan Mercl wrote:
>
>> On Sat, May 7, 2022 at 10:24 PM Constantine Vassilev <ths...@gmail.com>
>> wrote:
>>
>> > I need to write a program that reads STDIN and should output every line
>> that contains a search word "test" to STDOUT.
>>
>> Piping the data through grep(1) would be my first option.
>>
>
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