52 lines
961 B
Go
52 lines
961 B
Go
// 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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package main
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import (
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"bufio"
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"fmt"
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"os"
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"sort"
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"strings"
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)
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func main() {
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p := newParser()
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in := bufio.NewScanner(os.Stdin)
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for in.Scan() {
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parsed := parse(p, in.Text())
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update(p, parsed)
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}
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summarize(p)
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dumpErrs([]error{in.Err(), err(p)})
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}
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// summarize summarizes and prints the parsing result
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func summarize(p *parser) {
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sort.Strings(p.domains)
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fmt.Printf("%-30s %10s\n", "DOMAIN", "VISITS")
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fmt.Println(strings.Repeat("-", 45))
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for _, domain := range p.domains {
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fmt.Printf("%-30s %10d\n", domain, p.sum[domain].visits)
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}
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fmt.Printf("\n%-30s %10d\n", "TOTAL", p.total)
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}
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// dumpErrs simplifies handling multiple errors
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func dumpErrs(errs []error) {
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for _, err := range errs {
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if err != nil {
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fmt.Println("> Err:", err)
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}
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}
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}
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