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1 <!doctype html>
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2
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3 <title>CodeMirror: Go mode</title>
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4 <meta charset="utf-8"/>
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5 <link rel=stylesheet href="../../doc/docs.css">
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6
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7 <link rel="stylesheet" href="../../lib/codemirror.css">
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8 <link rel="stylesheet" href="../../theme/elegant.css">
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9 <script src="../../lib/codemirror.js"></script>
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10 <script src="../../addon/edit/matchbrackets.js"></script>
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11 <script src="go.js"></script>
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12 <style>.CodeMirror {border:1px solid #999; background:#ffc}</style>
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13 <div id=nav>
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14 <a href="https://codemirror.net/5"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png" alt=""></a>
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15
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16 <ul>
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17 <li><a href="../../index.html">Home</a>
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18 <li><a href="../../doc/manual.html">Manual</a>
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19 <li><a href="https://github.com/codemirror/codemirror5">Code</a>
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20 </ul>
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21 <ul>
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22 <li><a href="../index.html">Language modes</a>
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23 <li><a class=active href="#">Go</a>
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24 </ul>
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25 </div>
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26
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27 <article>
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28 <h2>Go mode</h2>
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29 <form><textarea id="code" name="code">
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30 // Prime Sieve in Go.
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31 // Taken from the Go specification.
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32 // Copyright © The Go Authors.
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33
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34 package main
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35
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36 import "fmt"
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37
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38 // Send the sequence 2, 3, 4, ... to channel 'ch'.
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39 func generate(ch chan<- int) {
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40 for i := 2; ; i++ {
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41 ch <- i // Send 'i' to channel 'ch'
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42 }
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43 }
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44
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45 // Copy the values from channel 'src' to channel 'dst',
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46 // removing those divisible by 'prime'.
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47 func filter(src <-chan int, dst chan<- int, prime int) {
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48 for i := range src { // Loop over values received from 'src'.
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49 if i%prime != 0 {
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50 dst <- i // Send 'i' to channel 'dst'.
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51 }
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52 }
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53 }
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54
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55 // The prime sieve: Daisy-chain filter processes together.
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56 func sieve() {
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57 ch := make(chan int) // Create a new channel.
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58 go generate(ch) // Start generate() as a subprocess.
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59 for {
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60 prime := <-ch
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61 fmt.Print(prime, "\n")
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62 ch1 := make(chan int)
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63 go filter(ch, ch1, prime)
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64 ch = ch1
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65 }
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66 }
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67
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68 func main() {
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69 sieve()
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70 }
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71 </textarea></form>
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72
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73 <script>
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74 var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
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75 theme: "elegant",
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76 matchBrackets: true,
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77 indentUnit: 8,
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78 tabSize: 8,
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79 indentWithTabs: true,
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80 mode: "text/x-go"
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81 });
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82 </script>
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83
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84 <p><strong>MIME type:</strong> <code>text/x-go</code></p>
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85 </article>
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