55 lines
1.0 KiB
Go
55 lines
1.0 KiB
Go
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// For more tutorials: https://blog.learngoprogramming.com
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//
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// Copyright © 2018 Inanc Gumus
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// Learn Go Programming Course
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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//
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/*
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✅ #1- Get and check the input
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✅ #2- Create a byte buffer and use it as the output
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✅ #3- Write input to the buffer as it is and print it
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✅ #4- Detect the link
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#5- Mask the link
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#6- Stop masking when whitespace is detected
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#7- Put a http:// prefix in front of the masked link
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*/
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package main
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import (
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"fmt"
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"os"
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)
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func main() {
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args := os.Args[1:]
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if len(args) != 1 {
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fmt.Println("gimme somethin' to mask!")
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return
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}
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const (
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link = "http://"
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nlink = len(link)
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)
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var (
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text = args[0]
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size = len(text)
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buf = make([]byte, 0, size)
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)
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for i := 0; i < size; i++ {
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buf = append(buf, text[i])
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// slice the input and look for the link pattern
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// do not slice it when it goes beyond the input text's capacity
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if len(text[i:]) >= nlink && text[i:i+nlink] == link {
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}
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}
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// print out the buffer as text (string)
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fmt.Println(string(buf))
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}
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