wasSharp – Blame information for rev
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1 | zed | 1 | /////////////////////////////////////////////////////////////////////////// |
2 | // Copyright (C) Wizardry and Steamworks 2013 - License: GNU GPLv3 // |
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3 | // Please see: http://www.gnu.org/licenses/gpl.html for legal details, // |
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4 | // rights of fair usage, the disclaimer and warranty conditions. // |
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5 | /////////////////////////////////////////////////////////////////////////// |
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6 | |||
7 | using System.Collections.Generic; |
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8 | using System.Linq; |
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9 | using System.Text; |
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10 | |||
11 | namespace wasSharp |
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12 | { |
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7 | office | 13 | public static class CSV |
1 | zed | 14 | { |
15 | /////////////////////////////////////////////////////////////////////////// |
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16 | // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 // |
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17 | /////////////////////////////////////////////////////////////////////////// |
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18 | /// <summary> |
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6 | eva | 19 | /// Converts a list of strings to a comma-separated values string. |
1 | zed | 20 | /// </summary> |
21 | /// <returns>a commma-separated list of values</returns> |
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22 | /// <remarks>compliant with RFC 4180</remarks> |
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7 | office | 23 | public static string FromEnumerable(IEnumerable<string> input) |
24 | { |
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25 | return string.Join(",", |
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26 | input |
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6 | eva | 27 | .Select(o => o.Replace("\"", "\"\"")) |
7 | office | 28 | .Select(o => o.IndexOfAny(new[] {'"', ' ', ',', '\r', '\n'}).Equals(-1) ? o : "\"" + o + "\"")); |
29 | } |
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1 | zed | 30 | |
6 | eva | 31 | /////////////////////////////////////////////////////////////////////////// |
7 | office | 32 | // Copyright (C) 2016 Wizardry and Steamworks - License: GNU GPLv3 // |
33 | /////////////////////////////////////////////////////////////////////////// |
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34 | /// <summary> |
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35 | /// Converts a dictionary of strings to a comma-separated values string. |
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36 | /// </summary> |
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37 | /// <returns>a commma-separated list of values</returns> |
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38 | /// <remarks>compliant with RFC 4180</remarks> |
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39 | public static string FromDictionary<K, V>(Dictionary<K, V> input) |
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40 | { |
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41 | return string.Join(",", input.Keys.Select(o => o.ToString()).Zip(input.Values.Select(o => o.ToString()), |
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42 | (o, p) => |
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43 | string.Join(",", |
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44 | o.Replace("\"", "\"\"").IndexOfAny(new[] {'"', ' ', ',', '\r', '\n'}).Equals(-1) |
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45 | ? o |
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46 | : "\"" + o + "\"", |
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47 | p.Replace("\"", "\"\"").IndexOfAny(new[] {'"', ' ', ',', '\r', '\n'}).Equals(-1) |
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48 | ? p |
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49 | : "\"" + p + "\""))); |
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50 | } |
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51 | |||
52 | /////////////////////////////////////////////////////////////////////////// |
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6 | eva | 53 | // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 // |
54 | /////////////////////////////////////////////////////////////////////////// |
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55 | /// <summary> |
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56 | /// Converts successive comma-separated values to key-value pairs. |
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57 | /// </summary> |
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58 | /// <returns>key-value pairs of successive comma-separate values</returns> |
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7 | office | 59 | public static IEnumerable<KeyValuePair<string, string>> ToKeyValue(string input) |
60 | { |
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61 | return ToEnumerable(input).AsParallel().Select((o, p) => new {o, p}) |
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62 | .GroupBy(q => q.p/2, q => q.o) |
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63 | .Select(o => o.ToArray()) |
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64 | .TakeWhile(o => o.Length%2 == 0) |
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65 | .Where(o => !string.IsNullOrEmpty(o[0]) || !string.IsNullOrEmpty(o[1])) |
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66 | .ToDictionary(o => o[0], p => p[1]).Select(o => o); |
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67 | } |
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1 | zed | 68 | |
69 | /////////////////////////////////////////////////////////////////////////// |
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70 | // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 // |
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71 | /////////////////////////////////////////////////////////////////////////// |
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72 | /// <summary> |
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7 | office | 73 | /// Converts a generic key value pair to a CSV. |
74 | /// </summary> |
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75 | /// <returns>a commma-separated list of values</returns> |
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76 | /// <remarks>compliant with RFC 4180</remarks> |
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77 | public static string FromKeyValue<K, V>(KeyValuePair<K, V> input) |
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78 | { |
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79 | var key = input.Key.ToString(); |
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80 | var value = input.Value.ToString(); |
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81 | |||
82 | return string.Join(",", key |
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83 | .Replace("\"", "\"\"").IndexOfAny(new[] {'"', ' ', ',', '\r', '\n'}).Equals(-1) |
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84 | ? key |
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85 | : "\"" + key + "\"", value |
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86 | .Replace("\"", "\"\"") |
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87 | .IndexOfAny(new[] {'"', ' ', ',', '\r', '\n'}) |
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88 | .Equals(-1) |
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89 | ? value |
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90 | : "\"" + value + "\""); |
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91 | } |
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92 | |||
93 | /////////////////////////////////////////////////////////////////////////// |
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94 | // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 // |
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95 | /////////////////////////////////////////////////////////////////////////// |
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96 | /// <summary> |
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1 | zed | 97 | /// Converts a comma-separated list of values to a list of strings. |
98 | /// </summary> |
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99 | /// <param name="csv">a comma-separated list of values</param> |
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100 | /// <returns>a list of strings</returns> |
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101 | /// <remarks>compliant with RFC 4180</remarks> |
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5 | eva | 102 | public static IEnumerable<string> ToEnumerable(string csv) |
1 | zed | 103 | { |
7 | office | 104 | var s = new Stack<char>(); |
105 | var m = new StringBuilder(); |
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106 | for (var i = 0; i < csv.Length; ++i) |
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1 | zed | 107 | { |
108 | switch (csv[i]) |
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109 | { |
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110 | case ',': |
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111 | if (!s.Any() || !s.Peek().Equals('"')) |
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112 | { |
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113 | yield return m.ToString(); |
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114 | m = new StringBuilder(); |
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115 | continue; |
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116 | } |
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117 | m.Append(csv[i]); |
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118 | continue; |
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119 | case '"': |
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120 | if (i + 1 < csv.Length && csv[i].Equals(csv[i + 1])) |
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121 | { |
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122 | m.Append(csv[i]); |
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123 | ++i; |
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124 | continue; |
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125 | } |
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126 | if (!s.Any() || !s.Peek().Equals(csv[i])) |
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127 | { |
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128 | s.Push(csv[i]); |
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129 | continue; |
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130 | } |
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131 | s.Pop(); |
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132 | continue; |
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133 | } |
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134 | m.Append(csv[i]); |
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135 | } |
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136 | |||
137 | yield return m.ToString(); |
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138 | } |
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139 | } |
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140 | } |