summaryrefslogtreecommitdiff
path: root/marching/Assets/ThirdParty/CSV-Parser/CSV Parser/src/CSVParser.cs
diff options
context:
space:
mode:
Diffstat (limited to 'marching/Assets/ThirdParty/CSV-Parser/CSV Parser/src/CSVParser.cs')
-rw-r--r--marching/Assets/ThirdParty/CSV-Parser/CSV Parser/src/CSVParser.cs181
1 files changed, 0 insertions, 181 deletions
diff --git a/marching/Assets/ThirdParty/CSV-Parser/CSV Parser/src/CSVParser.cs b/marching/Assets/ThirdParty/CSV-Parser/CSV Parser/src/CSVParser.cs
deleted file mode 100644
index c886c19..0000000
--- a/marching/Assets/ThirdParty/CSV-Parser/CSV Parser/src/CSVParser.cs
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * CSV Parser for C#.
- *
- * These codes are licensed under CC0.
- * https://github.com/yutokun/CSV-Parser
- */
-
-using System;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.IO;
-using System.Text;
-using System.Text.RegularExpressions;
-using System.Threading.Tasks;
-
-namespace yutokun
-{
- public static class CSVParser
- {
- /// <summary>
- /// Load CSV data from specified path.
- /// </summary>
- /// <param name="path">CSV file path.</param>
- /// <param name="delimiter">Delimiter.</param>
- /// <param name="encoding">Type of text encoding. (default UTF-8)</param>
- /// <returns>Nested list that CSV parsed.</returns>
- public static List<List<string>> LoadFromPath(string path, Delimiter delimiter = Delimiter.Auto, Encoding encoding = null)
- {
- encoding = encoding ?? Encoding.UTF8;
-
- if (delimiter == Delimiter.Auto)
- {
- delimiter = EstimateDelimiter(path);
- }
-
- var data = File.ReadAllText(path, encoding);
- return Parse(data, delimiter);
- }
-
- /// <summary>
- /// Load CSV data asynchronously from specified path.
- /// </summary>
- /// <param name="path">CSV file path.</param>
- /// <param name="delimiter">Delimiter.</param>
- /// <param name="encoding">Type of text encoding. (default UTF-8)</param>
- /// <returns>Nested list that CSV parsed.</returns>
- public static async Task<List<List<string>>> LoadFromPathAsync(string path, Delimiter delimiter = Delimiter.Auto, Encoding encoding = null)
- {
- encoding = encoding ?? Encoding.UTF8;
-
- if (delimiter == Delimiter.Auto)
- {
- delimiter = EstimateDelimiter(path);
- }
-
- using (var reader = new StreamReader(path, encoding))
- {
- var data = await reader.ReadToEndAsync();
- return Parse(data, delimiter);
- }
- }
-
- static Delimiter EstimateDelimiter(string path)
- {
- var extension = Path.GetExtension(path);
- if (extension.Equals(".csv", StringComparison.OrdinalIgnoreCase))
- {
- return Delimiter.Comma;
- }
-
- if (extension.Equals(".tsv", StringComparison.OrdinalIgnoreCase))
- {
- return Delimiter.Tab;
- }
-
- throw new Exception($"Delimiter estimation failed. Unknown Extension: {extension}");
- }
-
- /// <summary>
- /// Load CSV data from string.
- /// </summary>
- /// <param name="data">CSV string</param>
- /// <param name="delimiter">Delimiter.</param>
- /// <returns>Nested list that CSV parsed.</returns>
- public static List<List<string>> LoadFromString(string data, Delimiter delimiter = Delimiter.Comma)
- {
- if (delimiter == Delimiter.Auto) throw new InvalidEnumArgumentException("Delimiter estimation from string is not supported.");
- return Parse(data, delimiter);
- }
-
- static List<List<string>> Parse(string data, Delimiter delimiter)
- {
- ConvertToCrlf(ref data);
-
- var sheet = new List<List<string>>();
- var row = new List<string>();
- var cell = new StringBuilder();
- var insideQuoteCell = false;
- var start = 0;
-
- var delimiterSpan = delimiter.ToChar().ToString().AsSpan();
- var crlfSpan = "\r\n".AsSpan();
- var oneDoubleQuotSpan = "\"".AsSpan();
- var twoDoubleQuotSpan = "\"\"".AsSpan();
-
- while (start < data.Length)
- {
- var length = start <= data.Length - 2 ? 2 : 1;
- var span = data.AsSpan(start, length);
-
- if (span.StartsWith(delimiterSpan))
- {
- if (insideQuoteCell)
- {
- cell.Append(delimiter.ToChar());
- }
- else
- {
- AddCell(row, cell);
- }
-
- start += 1;
- }
- else if (span.StartsWith(crlfSpan))
- {
- if (insideQuoteCell)
- {
- cell.Append("\r\n");
- }
- else
- {
- AddCell(row, cell);
- AddRow(sheet, ref row);
- }
-
- start += 2;
- }
- else if (span.StartsWith(twoDoubleQuotSpan))
- {
- cell.Append("\"");
- start += 2;
- }
- else if (span.StartsWith(oneDoubleQuotSpan))
- {
- insideQuoteCell = !insideQuoteCell;
- start += 1;
- }
- else
- {
- cell.Append(span[0]);
- start += 1;
- }
- }
-
- if (row.Count > 0 || cell.Length > 0)
- {
- AddCell(row, cell);
- AddRow(sheet, ref row);
- }
-
- return sheet;
- }
-
- static void AddCell(List<string> row, StringBuilder cell)
- {
- row.Add(cell.ToString());
- cell.Length = 0; // Old C#.
- }
-
- static void AddRow(List<List<string>> sheet, ref List<string> row)
- {
- sheet.Add(row);
- row = new List<string>();
- }
-
- static void ConvertToCrlf(ref string data)
- {
- data = Regex.Replace(data, @"\r\n|\r|\n", "\r\n");
- }
- }
-}