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annotate modules/list.tp @ 339:74cab9b5f2a4

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Added parseFloat64 and parseFloat32 along with a sample that exercises number parsing from a string
author Michael Pavone <pavone@retrodev.com>
date Sat, 04 Apr 2015 12:34:43 -0700
parents eef8a5cea812
children
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1 {
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2 _empty <- #{
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3 length <- { 0 }
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4 empty? <- { true }
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5 fold:with <- :acc :fun { acc }
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6 foldr:with <- :acc :fun { acc }
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7 filter <- :pred { self }
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8 foreach <- :self fun { self }
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9 map <- :fun { self }
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10 | <- :val {
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11 list node: val withTail: self
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12 }
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13 . <- :right { right }
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14 reverse <- { self }
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15 join <- { "" }
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16 contains? <- :val { false }
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17 find <- :pred { option none }
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18 string <- { "[]" }
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19 print <- { print: string }
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20 jsonEncode <- { "[]" }
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21 }
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22 #{
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23 empty <- { _empty }
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24 node:withTail <- :_val :_tail {
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25 #{
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26 value <- { _val }
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27 tail <- { _tail }
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28 empty? <- { false }
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29 length <- {
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30 fold: 0 with: :acc val { acc + 1 }
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31 }
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32 fold:with <- :acc :fun {
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33 cur <- self
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34 while: { not: (cur empty?)} do: {
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35 acc <- fun: acc (cur value)
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36 cur <- cur tail
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37 }
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38 acc
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39 }
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40 foldr:with <- :acc fun {
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41 fun: (_tail foldr: acc with: fun) _val
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42 }
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43 filter <- :pred {
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44 reverse: (fold: [] with: :acc el {
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45 if: (pred: el) { el | acc } else: { acc }
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46 })
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47 }
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48 map <- :fun {
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49 node: (fun: _val) withTail: (_tail map: fun)
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50 }
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51 foreach <- :self fun {
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52 fold: 0 with: :idx el{
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53 fun: idx el
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54 idx + 1
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55 }
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56 self
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57 }
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58 | <- :val {
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59 node: val withTail: self
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60 }
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61 . <- :right {
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62 foldr: right with: :tail val {
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63 node: val withTail: tail
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64 }
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65 }
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66 reverse <- {
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67 fold: [] with: :tail val {
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68 node: val withTail: tail
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69 }
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70 }
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71 join <- :sep {
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72 _tail fold: (string: _val) with: :acc el {
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73 acc . sep . el
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74 }
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75 }
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76 contains? <- :val {
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77 if: _val = val {
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78 true
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79 } else: {
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80 _tail contains?: val
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81 }
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82 }
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83
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84 find <- :pred {
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85 if: (pred: _val) {
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86 option value: _val
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87 } else: {
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88 _tail find: pred
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89 }
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90 }
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91
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92 string <- {
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93 (fold: "[\n" with: :acc el {
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94 acc . " " . (string: el) . "\n"
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95 }) . "]"
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96 }
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97 print <- {
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98 print: "[\n"
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99 foreach: :_ el {
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100 print: " " . (string: el) . "\n"
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101 }
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102 print: "]"
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103 }
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104
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105 jsonEncode <- {
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106 parts <- map: :el { jsonEncoder encode: el }
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107 "[" . (parts join: ",") . "]"
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108 }
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109 }
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110 }
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111 }
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112 }