57 lines
1.1 KiB
Go
57 lines
1.1 KiB
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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)
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func main() {
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in := bufio.NewScanner(os.Stdin)
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p := newParser()
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for in.Scan() {
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// dom, err := parse(p, in.Text())
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// if err != nil {
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// fmt.Println(err)
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// return
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// }
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// p = push(p, dom)
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add(p, in.Text())
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}
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summarize(p)
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dumpErrs(in.Err(), err(p))
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}
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// funcs not always need to be reused.
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// here, it tells about what it does: it summarizes the parsing result.
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func summarize(p *parser) {
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// multiple iterators can be created. each one remembers the last
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// read domain record.
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next, cur := iterator(p)
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for next() {
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dom := cur()
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fmt.Printf("%-25s -> %d\n", dom.name, dom.visits)
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}
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fmt.Printf("\n%-25s -> %d\n", "TOTAL", p.total)
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}
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// this variadic func simplifies the multiple error handling
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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.Printf("> Err: %s\n", err)
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}
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}
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}
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