Esempio n. 1
0
func main() {
	inputFile, err := os.Open("src/github.com/roymiloh/AsciiArtExample/data/input.txt")
	if err != nil {
		panic(err)
	}
	outputFile, err := os.Create("src/github.com/roymiloh/AsciiArtExample/data/output.txt")
	if err != nil {
		panic(err)
	}

	r := AsciiArt.NewReader(inputFile)
	wr := bufio.NewWriter(outputFile)

	// a channel indicates on finish of writing process
	done := make(chan bool, 1)
	flushRate := 10

	// buffered channel for throttling purposes
	chRec := make(chan *AsciiArt.Record, flushRate)

	// writing process in his own goroutine
	go func() {
		recCount := 0

		for record := range chRec {
			recCount += 1
			fmt.Fprintln(wr, record.String())

			if recCount%flushRate == 0 {
				wr.Flush()
			}
		}

		wr.Flush()
		done <- true
	}()

	// reading and sending values to chRec
	for {
		record, err := r.Read()
		if err != nil {
			if err == io.EOF {
				close(chRec)
				break
			} else {
				// terminate the process if anything unexpected happens
				// ..or do something else, it actually depends on the error.
				panic(err)
			}
		}
		chRec <- record
	}

	// waiting...
	<-done

	inputFile.Close()
	outputFile.Close()
}
Esempio n. 2
0
func ExampleWriter_Write() {
	input :=
		"    _  _     _  _  _  _  _ \n" +
			"  | _| _||_||_ |_   ||_||_|\n" +
			"  ||_  _|  | _||_|  ||_| _|\n\n" +
			"    _  _     _  _  _  _  _ \n" +
			"  | _| _||_||_ |_   ||_||_|\n" +
			"  ||_  _|  | _||_|   |_| _|\n\n" +
			" _  _  _     _  _     _  _ \n" +
			"  | _| _||_||_ |_   ||_||_|\n" +
			"  ||_  _|  | _||_|  ||_| _|\n\n"

	r := AsciiArt.NewReader(strings.NewReader(input))
	wr := bufio.NewWriter(os.Stdout)

	// a channel indicates on finish of writing process
	done := make(chan bool, 1)
	flushRate := 10

	// buffered channel for throttling purposes
	chRec := make(chan *AsciiArt.Record, flushRate)

	// writing process in his own goroutine
	go func() {
		recCount := 0

		for record := range chRec {
			recCount += 1
			fmt.Fprintln(wr, record.String())

			if recCount%flushRate == 0 {
				wr.Flush()
			}
		}

		wr.Flush()
		done <- true
	}()

	// reading and sending values to chRec
	for {
		record, err := r.Read()
		if err != nil {
			if err == io.EOF {
				close(chRec)
				break
			} else {
				// terminate the process if anything unexpected happens
				// ..or do something else, it actually depends on the error.
				panic(err)
			}
		}
		chRec <- record
	}

	<-done

	// Output:
	// 123456789
	// 123456?89 ILLEGAL
	// 723456189
}