Initial Commit

pkNX.Structures/Text/TextConfig.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+
+namespace pkNX.Structures
+{
+    /// <summary>
+    /// Version specific text parsing configuration object to interact with text variable codes.
+    /// </summary>
+    public class TextConfig
+    {
+        internal static readonly TextConfig Default = new TextConfig(GameVersion.Any);
+        private static readonly char[] _trim_hex = { '0', 'x' };
+        private readonly TextVariableCode[] Variables;
+
+        public IEnumerable<string> GetVariableList() => Variables.Select(z => $"{z.Code:X4}={z.Name}");
+        public TextConfig(GameVersion game) => Variables = TextVariableCode.GetVariables(game);
+
+        private TextVariableCode GetCode(string name) => Array.Find(Variables, v => v.Name == name);
+        private TextVariableCode GetName(int value) => Array.Find(Variables, v => v.Code == value);
+
+        /// <summary>
+        /// Gets the machine-friendly variable instruction code to be written to the data.
+        /// </summary>
+        /// <param name="variable">Variable name</param>
+        public ushort GetVariableNumber(string variable)
+        {
+            var v = GetCode(variable);
+            if (v != null)
+                return (ushort)v.Code;
+            if (ushort.TryParse(variable.TrimStart(_trim_hex), NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var result))
+                return result;
+            throw new ArgumentException($"Variable parse error: {variable}. Expected a hexadecimal value or standard variable code.");
+        }
+
+        /// <summary>
+        /// Gets the human-friendly variable instruction name to be written to the output text line.
+        /// </summary>
+        /// <param name="variable">Variable code</param>
+        public string GetVariableString(ushort variable)
+        {
+            var v = GetName(variable);
+            return v?.Name ?? variable.ToString("X4");
+        }
+    }
+}