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<!doctype html>

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<title>CodeMirror: Go mode</title>

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<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a>

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<ul>

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<li><a href="../../doc/manual.html">Manual</a>

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</ul>

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<ul>

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<li><a href="../index.html">Language modes</a>

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</ul>

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</div>

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// Prime Sieve in Go.

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// Taken from the Go specification.

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package main

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import "fmt"

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// Send the sequence 2, 3, 4, ... to channel 'ch'.

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func generate(ch chan<- int) {

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for i := 2; ; i++ {

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ch <- i // Send 'i' to channel 'ch'

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}

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}

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// Copy the values from channel 'src' to channel 'dst',

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// removing those divisible by 'prime'.

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func filter(src <-chan int, dst chan<- int, prime int) {

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for i := range src { // Loop over values received from 'src'.

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if i%prime != 0 {

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dst <- i // Send 'i' to channel 'dst'.

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}

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}

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}

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// The prime sieve: Daisy-chain filter processes together.

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func sieve() {

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ch := make(chan int) // Create a new channel.

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go generate(ch) // Start generate() as a subprocess.

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for {

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prime := <-ch

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fmt.Print(prime, "\n")

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ch1 := make(chan int)

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go filter(ch, ch1, prime)

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ch = ch1

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}

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}

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func main() {

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sieve()

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}

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</textarea></form>

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var editor = CodeMirror.fromTextArea(document.getElementById("code"), {

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theme: "elegant",

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matchBrackets: true,

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indentUnit: 8,

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tabSize: 8,

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indentWithTabs: true,

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mode: "text/x-go"

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});

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</script>

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</article>

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