PROMS/Volian.Controls.Library/StepRTB.cs

@@ -2172,13 +2172,31 @@ namespace Volian.Controls.Library
 
 		public string GetPasteText(bool PasteNoReturnsSetting, IDataObject myDO)
 		{
+			// allowable symbols are those symbols between 127-256 that the proms editor supports that
+			// can be pasted from word as is.  These symbols are (in the order they are in the following 
+			// string): degree, plus/minus, exponent 2, exponent 3, micro, quarter, half, divide:
+			char[] allowableSymbols = { '\xb0', '\xb1', '\xb2', '\xb3', '\xb5', '\xbc', '\xbd', '\xf7' };
 			string ptext = myDO.GetData(DataFormats.Text).ToString();
 			ptext = ptext.TrimEnd("\r\n\t ".ToCharArray());
 			if (PasteNoReturnsSetting) ptext = ptext.Replace("\r\n", " ");
+			StringBuilder sb = new StringBuilder(ptext);
+			bool didCharReplace = false;
+			for (int i = 0; i < ptext.Length; i++)
+			{
+				// if allowable, allow for it to pasted.  Otherwise, replace that character with a '?'.
+				if ((sb[i] > 0x7e))
+				if ((ptext.Substring(i, 1).IndexOfAny(allowableSymbols) < 0))
+				{
+					sb[i] = '?';
+					didCharReplace = true;
+				}
+			}
+			ptext = sb.ToString();
 			ptext = ptext.Replace("\u2013", "-"); // Replace EN Dash with hyphen
 			ptext = ptext.Replace("\u2014", "-"); // Replace EM Dash with hyphen
 			ptext = ptext.Replace("\u2011", "-"); // Replace non-breaking hyphen with hyphen
-			ptext = ptext.Replace((char)0xb7, '?');  // bullet comes in as a b7, which we don't support either
+			if (didCharReplace)
+				MessageBox.Show("Replacing pasted characters that are not supported by Proms with a '?'.");
 			return ptext;
 		}
 		private void DoDeleteEndBetweenLinks()