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74 lines
2.4 KiB
74 lines
2.4 KiB
10 years ago
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using UnityEngine;
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using System.Collections;
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using System.Text.RegularExpressions;
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using System.Linq;
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using System;
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namespace Fungus
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{
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// Some CSV utilities cobbled together from stack overflow answers
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// CSV escape & unescape from http://stackoverflow.com/questions/769621/dealing-with-commas-in-a-csv-file
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// http://answers.unity3d.com/questions/144200/are-there-any-csv-reader-for-unity3d-without-needi.html
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public static class CSVSupport
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{
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public static string Escape( string s )
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{
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s = s.Replace("\n", "\\n");
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if ( s.Contains( QUOTE ) )
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s = s.Replace( QUOTE, ESCAPED_QUOTE );
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//if ( s.IndexOfAny( CHARACTERS_THAT_MUST_BE_QUOTED ) > -1 )
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s = QUOTE + s + QUOTE;
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return s;
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}
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public static string Unescape( string s )
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{
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s = s.Replace("\\n", "\n");
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if ( s.StartsWith( QUOTE ) && s.EndsWith( QUOTE ) )
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{
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s = s.Substring( 1, s.Length - 2 );
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if ( s.Contains( ESCAPED_QUOTE ) )
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s = s.Replace( ESCAPED_QUOTE, QUOTE );
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}
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return s;
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}
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public static string[] SplitCSVLine(string line)
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{
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// '(?<val>[^'\\]*(?:\\[\S\s][^'\\]*)*)' # Either $1: Single quoted string,
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string pattern = @"
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# Match one value in valid CSV string.
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(?!\s*$) # Don't match empty last value.
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\s* # Strip whitespace before value.
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(?: # Group for value alternatives.
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| ""(?<val>[^""\\]*(?:\\[\S\s][^""\\]*)*)"" # or $2: Double quoted string,
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| (?<val>[^,'""\s\\]*(?:\s+[^,'""\s\\]+)*) # or $3: Non-comma, non-quote stuff.
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) # End group of value alternatives.
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\s* # Strip whitespace after value.
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(?:,|$) # Field ends on comma or EOS.
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";
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string[] values = (from Match m in Regex.Matches(line, pattern,
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RegexOptions.ExplicitCapture | RegexOptions.IgnorePatternWhitespace | RegexOptions.Multiline)
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select m.Groups[1].Value).ToArray();
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return values;
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}
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private const string QUOTE = "\"";
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private const string ESCAPED_QUOTE = "\"\"";
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// private static char[] CHARACTERS_THAT_MUST_BE_QUOTED = { ',', '"', '\n' };
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}
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}
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