go-wc

go-wc is a Go implementation of the Unix CLI tool wc and the solution for the first challenge of Coding Challenges.

Step 1

wc -c test.txt
335040 test.txt

go run main.go -c test.txt
335040 test.txt

Step 2

wc -l test.txt
7143 test.txt

go run main.go -l test.txt
7143 test.txt

Step 3

wc -w test.txt
58164 test.txt

go run main.go -w test.txt
58164 test.txt

Step 4

wc -m test.txt
332144 test.txt

go run main.go -m test.txt
332144 test.txt

Step 5

wc test.txt
7143 58164 335040 test.txt

go run main.go test.txt
7143 58164 335040 test.txt

Step 6

cat test.txt | wc
7143 58164 335040

cat test.txt | go run main.go
7143 58164 335040

Tests

go test -v

=== RUN   TestCountAll
--- PASS: TestCountAll (0.00s)
PASS
ok      github.com/alefeans/go-wc       0.080s

Benchmarks

go test -bench=. -benchmem

goos: darwin
goarch: arm64
pkg: github.com/alefeans/go-wc
BenchmarkCountAllSimpleInput-10          3123913               384.7 ns/op          4128 B/op             2 allocs/op
BenchmarkCountAllTestFile-10             1566600               757.4 ns/op          4128 B/op             2 allocs/op
PASS
ok      github.com/alefeans/go-wc       3.698s

License

This project is licensed under the MIT License - see the LICENSE file for details.