wasSharp – Diff between revs 4 and 5

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1 /////////////////////////////////////////////////////////////////////////// 1 ///////////////////////////////////////////////////////////////////////////
2 // Copyright (C) Wizardry and Steamworks 2013 - License: GNU GPLv3 // 2 // Copyright (C) Wizardry and Steamworks 2013 - License: GNU GPLv3 //
3 // Please see: http://www.gnu.org/licenses/gpl.html for legal details, // 3 // Please see: http://www.gnu.org/licenses/gpl.html for legal details, //
4 // rights of fair usage, the disclaimer and warranty conditions. // 4 // rights of fair usage, the disclaimer and warranty conditions. //
5 /////////////////////////////////////////////////////////////////////////// 5 ///////////////////////////////////////////////////////////////////////////
6   6  
7 using System.Collections.Generic; 7 using System.Collections.Generic;
8 using System.Linq; 8 using System.Linq;
9 using System.Text; 9 using System.Text;
10 using System.Threading.Tasks; 10 using System.Threading.Tasks;
11   11  
12 namespace wasSharp 12 namespace wasSharp
13 { 13 {
14 public class CSV 14 public class CSV
15 { 15 {
16 /////////////////////////////////////////////////////////////////////////// 16 ///////////////////////////////////////////////////////////////////////////
17 // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 // 17 // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 //
18 /////////////////////////////////////////////////////////////////////////// 18 ///////////////////////////////////////////////////////////////////////////
19 /// <summary> 19 /// <summary>
20 /// Converts a list of string to a comma-separated values string. 20 /// Converts a list of string to a comma-separated values string.
21 /// </summary> 21 /// </summary>
22 /// <param name="l">a list of strings</param> 22 /// <param name="l">a list of strings</param>
23 /// <returns>a commma-separated list of values</returns> 23 /// <returns>a commma-separated list of values</returns>
24 /// <remarks>compliant with RFC 4180</remarks> 24 /// <remarks>compliant with RFC 4180</remarks>
25 public static string wasEnumerableToCSV(IEnumerable<string> l) 25 public static string FromEnumerable(IEnumerable<string> l)
26 { 26 {
27 string[] csv = l.Select(o => o).ToArray(); 27 string[] csv = l.Select(o => o).ToArray();
28 char[] escapeCharacters = {'"', ' ', ',', '\r', '\n'}; 28 char[] escapeCharacters = {'"', ' ', ',', '\r', '\n'};
29 Parallel.ForEach(csv.Select((v, i) => new {i, v}), o => 29 Parallel.ForEach(csv.Select((v, i) => new {i, v}), o =>
30 { 30 {
31 string cell = o.v.Replace("\"", "\"\""); 31 string cell = o.v.Replace("\"", "\"\"");
32   32  
33 switch (cell.IndexOfAny(escapeCharacters)) 33 switch (cell.IndexOfAny(escapeCharacters))
34 { 34 {
35 case -1: 35 case -1:
36 csv[o.i] = cell; 36 csv[o.i] = cell;
37 break; 37 break;
38 default: 38 default:
39 csv[o.i] = "\"" + cell + "\""; 39 csv[o.i] = "\"" + cell + "\"";
40 break; 40 break;
41 } 41 }
42 }); 42 });
43 return string.Join(",", csv); 43 return string.Join(",", csv);
44 } 44 }
45   45  
46 /////////////////////////////////////////////////////////////////////////// 46 ///////////////////////////////////////////////////////////////////////////
47 // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 // 47 // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 //
48 /////////////////////////////////////////////////////////////////////////// 48 ///////////////////////////////////////////////////////////////////////////
49 /// <summary> 49 /// <summary>
50 /// Converts a comma-separated list of values to a list of strings. 50 /// Converts a comma-separated list of values to a list of strings.
51 /// </summary> 51 /// </summary>
52 /// <param name="csv">a comma-separated list of values</param> 52 /// <param name="csv">a comma-separated list of values</param>
53 /// <returns>a list of strings</returns> 53 /// <returns>a list of strings</returns>
54 /// <remarks>compliant with RFC 4180</remarks> 54 /// <remarks>compliant with RFC 4180</remarks>
55 public static IEnumerable<string> wasCSVToEnumerable(string csv) 55 public static IEnumerable<string> ToEnumerable(string csv)
56 { 56 {
57 Stack<char> s = new Stack<char>(); 57 Stack<char> s = new Stack<char>();
58 StringBuilder m = new StringBuilder(); 58 StringBuilder m = new StringBuilder();
59 for (int i = 0; i < csv.Length; ++i) 59 for (int i = 0; i < csv.Length; ++i)
60 { 60 {
61 switch (csv[i]) 61 switch (csv[i])
62 { 62 {
63 case ',': 63 case ',':
64 if (!s.Any() || !s.Peek().Equals('"')) 64 if (!s.Any() || !s.Peek().Equals('"'))
65 { 65 {
66 yield return m.ToString(); 66 yield return m.ToString();
67 m = new StringBuilder(); 67 m = new StringBuilder();
68 continue; 68 continue;
69 } 69 }
70 m.Append(csv[i]); 70 m.Append(csv[i]);
71 continue; 71 continue;
72 case '"': 72 case '"':
73 if (i + 1 < csv.Length && csv[i].Equals(csv[i + 1])) 73 if (i + 1 < csv.Length && csv[i].Equals(csv[i + 1]))
74 { 74 {
75 m.Append(csv[i]); 75 m.Append(csv[i]);
76 ++i; 76 ++i;
77 continue; 77 continue;
78 } 78 }
79 if (!s.Any() || !s.Peek().Equals(csv[i])) 79 if (!s.Any() || !s.Peek().Equals(csv[i]))
80 { 80 {
81 s.Push(csv[i]); 81 s.Push(csv[i]);
82 continue; 82 continue;
83 } 83 }
84 s.Pop(); 84 s.Pop();
85 continue; 85 continue;
86 } 86 }
87 m.Append(csv[i]); 87 m.Append(csv[i]);
88 } 88 }
89   89  
90 yield return m.ToString(); 90 yield return m.ToString();
91 } 91 }
92 } 92 }
93 } 93 }
94   94  
95
Generated by GNU Enscript 1.6.5.90.
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Generated by GNU Enscript 1.6.5.90.
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