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298 lines
7.2 KiB
C#
298 lines
7.2 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using System.IO;
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using ES3Internal;
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public class ES3Spreadsheet
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{
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private int cols = 0;
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private int rows = 0;
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private Dictionary<Index, string> cells = new Dictionary<Index, string>();
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private const string QUOTE = "\"";
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private const char QUOTE_CHAR = '"';
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private const char COMMA_CHAR = ',';
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private const char NEWLINE_CHAR = '\n';
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private const string ESCAPED_QUOTE = "\"\"";
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private static char[] CHARS_TO_ESCAPE = { ',', '"', '\n', ' ' };
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public ES3Spreadsheet()
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{
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ES3Debug.Log("ES3Spreadsheet created");
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}
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public int ColumnCount
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{
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get{ return cols; }
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}
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public int RowCount
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{
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get{ return rows; }
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}
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public void SetCell<T>(int col, int row, T value)
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{
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ES3Debug.Log("Setting cell (" + col + "," + row + ") to value " + value);
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// If we're writing a string, add it without formatting.
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if (value.GetType() == typeof(string))
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{
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SetCellString(col, row, (string)(object)value);
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return;
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}
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var settings = new ES3Settings ();
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using(var ms = new MemoryStream())
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{
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using (var jsonWriter = new ES3JSONWriter (ms, settings, false, false))
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jsonWriter.Write(value, ES3.ReferenceMode.ByValue);
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SetCellString(col, row, settings.encoding.GetString(ms.ToArray()));
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}
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// Expand the spreadsheet if necessary.
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if(col >= cols)
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cols = (col+1);
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if(row >= rows)
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rows = (row+1);
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}
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private void SetCellString(int col, int row, string value)
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{
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cells [new Index (col, row)] = value;
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// Expand the spreadsheet if necessary.
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if(col >= cols)
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cols = (col+1);
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if (row >= rows)
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rows = (row + 1);
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}
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// Don't create non-generic version of this. Generic parameter is necessary as no type data is stored in the CSV file.
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public T GetCell<T>(int col, int row)
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{
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var val = GetCell(typeof(T), col, row);
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if (val == null)
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return default(T);
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return (T)val;
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}
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internal object GetCell(System.Type type, int col, int row)
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{
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string value;
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if (col >= cols || row >= rows)
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throw new System.IndexOutOfRangeException("Cell (" + col + ", " + row + ") is out of bounds of spreadsheet (" + cols + ", " + rows + ").");
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if (!cells.TryGetValue(new Index(col, row), out value) || string.IsNullOrEmpty(value))
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{
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ES3Debug.Log("Getting cell (" + col + "," + row + ") is empty, so default value is being returned");
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return null;
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}
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// If we're loading a string, simply return the string value.
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if (type == typeof(string))
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{
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var str = (object)value;
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ES3Debug.Log("Getting cell (" + col + "," + row + ") with value " + str);
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return str;
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}
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var settings = new ES3Settings();
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using (var ms = new MemoryStream(settings.encoding.GetBytes(value)))
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{
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using (var jsonReader = new ES3JSONReader(ms, settings, false))
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{
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var obj = ES3TypeMgr.GetOrCreateES3Type(type, true).Read<object>(jsonReader);
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ES3Debug.Log("Getting cell (" + col + "," + row + ") with value " + obj);
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return obj;
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}
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}
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}
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public void Load(string filePath)
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{
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Load(new ES3Settings (filePath));
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}
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public void Load(string filePath, ES3Settings settings)
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{
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Load(new ES3Settings (filePath, settings));
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}
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public void Load(ES3Settings settings)
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{
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Load(ES3Stream.CreateStream(settings, ES3FileMode.Read), settings);
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}
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public void LoadRaw(string str)
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{
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Load(new MemoryStream (((new ES3Settings ()).encoding).GetBytes(str)), new ES3Settings());
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}
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public void LoadRaw(string str, ES3Settings settings)
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{
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Load(new MemoryStream ((settings.encoding).GetBytes(str)), settings);
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}
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private void Load(Stream stream, ES3Settings settings)
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{
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using (var reader = new StreamReader(stream))
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{
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int c_int;
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char c;
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string value = "";
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int col = 0;
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int row = 0;
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ES3Debug.Log("Reading spreadsheet "+settings.path+" from "+settings.location);
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// Read until the end of the stream.
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while(true)
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{
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c_int = reader.Read();
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c = (char)c_int;
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if(c == QUOTE_CHAR)
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{
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while (true)
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{
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c = (char)reader.Read();
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if(c == QUOTE_CHAR)
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{
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// If this quote isn't escaped by another, it is the last quote, so we should stop parsing this value.
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if(((char)reader.Peek()) != QUOTE_CHAR)
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break;
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else
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c = (char)reader.Read();
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}
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value += c;
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}
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}
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// If this is the end of a column, row, or the stream, add the value to the spreadsheet.
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else if(c == COMMA_CHAR || c == NEWLINE_CHAR || c_int == -1)
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{
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SetCell(col, row, value);
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value = "";
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if(c == COMMA_CHAR)
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col++;
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else if(c == NEWLINE_CHAR)
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{
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col = 0;
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row++;
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}
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else
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break;
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}
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else
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value += c;
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}
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}
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ES3Debug.Log("Finished reading spreadsheet " + settings.path + " from " + settings.location);
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}
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public void Save(string filePath)
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{
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Save(new ES3Settings (filePath), false);
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}
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public void Save(string filePath, ES3Settings settings)
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{
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Save(new ES3Settings (filePath, settings), false);
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}
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public void Save(ES3Settings settings)
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{
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Save(settings, false);
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}
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public void Save(string filePath, bool append)
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{
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Save(new ES3Settings (filePath), append);
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}
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public void Save(string filePath, ES3Settings settings, bool append)
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{
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Save(new ES3Settings (filePath, settings), append);
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}
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public void Save(ES3Settings settings, bool append)
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{
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using (var writer = new StreamWriter(ES3Stream.CreateStream(settings, append ? ES3FileMode.Append : ES3FileMode.Write)))
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{
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// If data already exists and we're appending, we need to prepend a newline.
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if(append && ES3.FileExists(settings))
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writer.Write(NEWLINE_CHAR);
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var array = ToArray();
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for(int row = 0; row < rows; row++)
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{
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if(row != 0)
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writer.Write(NEWLINE_CHAR);
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for(int col = 0; col < cols; col++)
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{
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if(col != 0)
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writer.Write(COMMA_CHAR);
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ES3Debug.Log("Writing cell (" + col + "," + row + ") to file with value "+ array[col, row]);
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writer.Write( Escape(array [col, row]) );
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}
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}
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}
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if(!append)
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ES3IO.CommitBackup(settings);
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}
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private static string Escape(string str, bool isAlreadyWrappedInQuotes=false)
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{
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if(string.IsNullOrEmpty(str))
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return null;
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// Now escape any other quotes.
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if(str.Contains(QUOTE))
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str = str.Replace(QUOTE, ESCAPED_QUOTE);
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// If there's chars to escape, wrap the value in quotes.
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if(str.IndexOfAny(CHARS_TO_ESCAPE) > -1)
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str = QUOTE + str + QUOTE;
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return str;
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}
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private static string Unescape(string str)
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{
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if(str.StartsWith(QUOTE) && str.EndsWith(QUOTE))
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{
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str = str.Substring(1, str.Length-2);
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if(str.Contains(ESCAPED_QUOTE))
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str = str.Replace(ESCAPED_QUOTE, QUOTE);
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}
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return str;
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}
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private string[,] ToArray()
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{
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var array = new string[cols, rows];
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foreach (var cell in cells)
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array [cell.Key.col, cell.Key.row] = cell.Value;
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return array;
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}
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protected struct Index
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{
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public int col;
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public int row;
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public Index(int col, int row)
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{
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this.col = col;
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this.row = row;
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}
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}
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}
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