CH1.adoc

CH1

All functions implemented in ch1.go. Just call a desired function to main and run.

Copy Input to Output

New line can be \r\n on Windows. I skipped this part.

example run

$ go run ch1.go
hello there, are you listening?
hello there, are you listening?
yes, I am.
yes, I am.
^D

Count Characters

$ go run ch1.go
A single line of input.
24

Count Lines

$ go run ch1.go
qwert qwee werewr
abd and ngg
123
^D
3

Count Words

$ go run ch1.go
aaa bbb a
ccc dd
qqq www rerr ttt
^D
9

Delete Tabs

As this example uses #include. I created a separate package and a seprate file. Just for demonstration. Also, in go arrays are zero indexed. That’s why I start from col := 0.

$ ./ch1
1       2               3                       4       4       2
1 2  3   4 4 2

Honestly I didn’t understand why to we need tabpos at all. Why we just print a space everytime when we find a tab?