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1 <!doctype html>
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2
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3 <title>CodeMirror: Fortran 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 <script src="../../lib/codemirror.js"></script>
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9 <script src="fortran.js"></script>
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10 <style>.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}</style>
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11 <div id=nav>
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12 <a href="https://codemirror.net/5"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png" alt=""></a>
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13
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14 <ul>
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15 <li><a href="../../index.html">Home</a>
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16 <li><a href="../../doc/manual.html">Manual</a>
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17 <li><a href="https://github.com/codemirror/codemirror5">Code</a>
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18 </ul>
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19 <ul>
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20 <li><a href="../index.html">Language modes</a>
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21 <li><a class=active href="#">Fortran</a>
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22 </ul>
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23 </div>
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24
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25 <article>
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26 <h2>Fortran mode</h2>
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27
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28
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29 <div><textarea id="code" name="code">
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30 ! Example Fortran code
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31 program average
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32
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33 ! Read in some numbers and take the average
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34 ! As written, if there are no data points, an average of zero is returned
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35 ! While this may not be desired behavior, it keeps this example simple
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36
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37 implicit none
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38
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39 real, dimension(:), allocatable :: points
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40 integer :: number_of_points
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41 real :: average_points=0., positive_average=0., negative_average=0.
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42
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43 write (*,*) "Input number of points to average:"
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44 read (*,*) number_of_points
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45
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46 allocate (points(number_of_points))
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47
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48 write (*,*) "Enter the points to average:"
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49 read (*,*) points
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50
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51 ! Take the average by summing points and dividing by number_of_points
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52 if (number_of_points > 0) average_points = sum(points) / number_of_points
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53
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54 ! Now form average over positive and negative points only
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55 if (count(points > 0.) > 0) then
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56 positive_average = sum(points, points > 0.) / count(points > 0.)
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57 end if
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58
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59 if (count(points < 0.) > 0) then
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60 negative_average = sum(points, points < 0.) / count(points < 0.)
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61 end if
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62
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63 deallocate (points)
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64
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65 ! Print result to terminal
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66 write (*,'(a,g12.4)') 'Average = ', average_points
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67 write (*,'(a,g12.4)') 'Average of positive points = ', positive_average
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68 write (*,'(a,g12.4)') 'Average of negative points = ', negative_average
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69
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70 end program average
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71 </textarea></div>
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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 lineNumbers: true,
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76 mode: "text/x-fortran"
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77 });
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78 </script>
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79
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80 <p><strong>MIME types defined:</strong> <code>text/x-fortran</code>.</p>
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81 </article>
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