libObsidean/MarkdownTableParser.cs

using System.Text.RegularExpressions;
using System.IO;
using Newtonsoft.Json.Linq;

namespace libObsidean
{
    public class MarkdownTableParser
    {
        public static string[,] ParseTableFromMarkdown(string filePath)
        {
            var lines = File.ReadAllLines(filePath);
            var tableLines = ExtractTableLines(lines);
            return ConvertTableLinesToArray(tableLines);
        }

        private static List<string> ExtractTableLines(string[] lines)
        {
            List<string> tableLines = new List<string>();
            bool inTable = false;

            foreach (var line in lines)
            {
                if (line.StartsWith("|") && line.EndsWith("|"))
                {
                    inTable = true;
                    tableLines.Add(line.Trim());
                }
                else if (inTable)
                {
                    break;
                }
            }

            return tableLines;
        }

        private static string[,] ConvertTableLinesToArray(List<string> tableLines)
        {
            if (tableLines.Count == 0)
                return new string[0, 0];

            var header = tableLines[0].Split('|').Select(h => h.Trim()).Where(h => !string.IsNullOrEmpty(h)).ToArray();
            int columns = header.Length;
            int rows = tableLines.Count - 1;

            string[,] tableArray = new string[rows, columns];

            for (int i = 1; i <= rows; i++)
            {
                var row = tableLines[i].Split('|').Select(r => r.Trim()).Where(r => !string.IsNullOrEmpty(r)).ToArray();
                for (int j = 0; j < columns; j++)
                {
                    tableArray[i - 1, j] = row[j];
                }
            }

            return tableArray;
        }
    }
}