SourceCode/PROMS/VEPROMS.CSLA.Library/Extension/DisplayText.cs

using System;਍ഀ
using System.Collections.Generic;਍ഀ
using System.Text;਍ഀ
using System.Windows.Forms;਍ഀ
using System.Text.RegularExpressions;਍ഀ
using System.Drawing;਍ഀ
਍ഀ
namespace VEPROMS.CSLA.Library਍ഀ
{਍ഀ
	public class DisplayText਍ഀ
	{਍ഀ
		#region Properties਍ഀ
		private ItemInfo _MyItemInfo;਍ഀ
		// list of 'pieces of text' for this item.  Pieces include symbols, ros, ਍ഀ
		// transitions & plain text.਍ഀ
		private List<displayTextElement> _DisplayTextElementList;਍ഀ
		public List<displayTextElement> DisplayTextElementList਍ഀ
		{਍ഀ
			get { return _DisplayTextElementList; }਍ഀ
			set { _DisplayTextElementList = value; }਍ഀ
		}਍ഀ
		// dictionary for the font table for this item.  Note that this may਍ഀ
		// go away (it is not really used).਍ഀ
		private Dictionary<int, string> _dicRtfFontTable;਍ഀ
		public Dictionary<int, string> dicRtfFontTable਍ഀ
		{਍ഀ
			get { return _dicRtfFontTable; }਍ഀ
			set { _dicRtfFontTable = value; }਍ഀ
		}਍ഀ
		private VE_Font _textFont;		// Font from format for this item਍ഀ
		public VE_Font TextFont਍ഀ
		{਍ഀ
		  get { return _textFont; }਍ഀ
		  set { _textFont = value; }਍ഀ
		}਍ഀ
		public string OriginalText;		// compare for save to see if change.਍ഀ
		public string OriginalConfigText;਍ഀ
		private FormatInfo _MyFormat;਍ഀ
		#endregion਍ഀ
		#region Constructors਍ഀ
		/// <summary>਍ഀ
		///     DisplayText constructor:਍ഀ
		///			Creates a DisplayText object that converts the database text into a list of ਍ഀ
		///				displayTextElement elements.਍ഀ
		///			Arguments are:਍ഀ
		///				ItemInfo itemInfo - the item whose text will be resolved਍ഀ
		///				E_EditPrintMode ep_mode - edit or print.਍ഀ
		///				E_ViewMode vw_mode - view or edit.਍ഀ
		/// </summary>਍ഀ
		public DisplayText(ItemInfo itemInfo, E_EditPrintMode epMode, E_ViewMode vwMode)਍ഀ
		{਍ഀ
			_MyItemInfo = itemInfo;਍ഀ
			DisplayTextElementList = new List<displayTextElement>();਍ഀ
			OriginalText = itemInfo.MyContent.Text;਍ഀ
			TextFont = GetItemFont();਍ഀ
			string text = _MyItemInfo.MyContent.Text;਍ഀ
			਍ഀ
			// if in print mode or view mode, do replace words.  Only if in edit mode are replace਍ഀ
			// words left as is.਍ഀ
			_MyFormat = itemInfo.ActiveFormat;਍ഀ
			if (epMode == E_EditPrintMode.Print || vwMode == E_ViewMode.View) text = DoReplaceWords(text);਍ഀ
਍ഀ
			// as a precaution, convert any \~ to \u160?. This is for Hard spaces.. see the commentary in the਍ഀ
			// save portion of this code for an explanation.਍ഀ
			text = text.Replace(@"\~", @"\u160?");਍ഀ
਍ഀ
			// replace the dash/hyphen or whatever you want to call it, with a hard hyphen.  The 16-bit program਍ഀ
			// treated the dash/hyphen as such.  Translate back on any data saves.਍ഀ
			text = text.Replace(@"-", @"\u8209?");਍ഀ
਍ഀ
			// displayTextElement List items are created for anything that is handled differently in RTB, i.e.਍ഀ
			// symbols, ros, trans, text.਍ഀ
			int startIndex = 0;਍ഀ
			int index = -1;਍ഀ
			while ((index = FindTokenChar(text, startIndex))>-1)਍ഀ
			{਍ഀ
				// Do any 'plain' text that preceeds the token.਍ഀ
				if (index > startIndex) DoTextElement(text, startIndex, index);਍ഀ
				if (text[index + 1] == 'v')਍ഀ
					index = DoLink(text, index);਍ഀ
				else਍ഀ
					index = DoSymbol(text, startIndex, index);਍ഀ
				startIndex = index; // +1;਍ഀ
				if (startIndex >= text.Length) break;਍ഀ
			}਍ഀ
			// Add any remaining text.਍ഀ
			if (startIndex < text.Length) DoTextElement(text, startIndex, index);਍ഀ
		}਍ഀ
		#endregion਍ഀ
		#region SaveData਍ഀ
		public bool Save(RichTextBox rtb)਍ഀ
		{਍ഀ
			try਍ഀ
			{਍ഀ
				List<displayLinkElement> origList = GetLinkList(DisplayTextElementList);਍ഀ
				// massage string to store in DisplayTextElementList...਍ഀ
				RtfToDisplayTextElements(rtb);਍ഀ
				// take the list & convert to data in the format to save to the database.਍ഀ
				string modtext = DteToString();਍ഀ
				਍ഀ
				if (modtext != OriginalText)਍ഀ
				{਍ഀ
					Item itm = _MyItemInfo.Get();਍ഀ
					// check for different text, i.e. text from this itm doesn't match਍ഀ
					// original text.਍ഀ
					if (OriginalText != itm.MyContent.Text)਍ഀ
					{਍ഀ
						Console.WriteLine("Save Failed because text changed outside of this edit session.");਍ഀ
						return false;਍ഀ
					}਍ഀ
					// Compare ro/transition lists and delete or add any to the item for any ros/transitions that have been਍ഀ
					// added/deleted or modified.਍ഀ
					ProcessRoTranChanges(itm, origList);਍ഀ
					itm.MyContent.Text = DteToString();਍ഀ
					Dictionary<int, ContentTransition> ctReplacements = BuildCtReplacements(itm.MyContent.ContentTransitions);਍ഀ
					Dictionary<int, ContentRoUsage> roUsgReplacements = BuildRoUsgReplacements(itm.MyContent.ContentRoUsages);਍ഀ
					itm.Save();਍ഀ
					if (ctReplacements.Count > 0)਍ഀ
					{਍ഀ
						itm.MyContent.Text = FixCtReplacements(itm.MyContent.Text, ctReplacements);਍ഀ
						itm.Save();਍ഀ
					}਍ഀ
					if (roUsgReplacements.Count > 0)਍ഀ
					{਍ഀ
						itm.MyContent.Text = FixRoUsgReplacements(itm.MyContent.Text, roUsgReplacements);਍ഀ
						itm.Save();਍ഀ
					}਍ഀ
					OriginalText = modtext;਍ഀ
				}਍ഀ
				else਍ഀ
					return true;  // no text changed, but did not fail so return true.਍ഀ
			}਍ഀ
			catch (Exception ex)਍ഀ
			{਍ഀ
				Console.WriteLine("Save Failed with error: {0}", ex.Message);਍ഀ
				return false;਍ഀ
			}਍ഀ
			return true;਍ഀ
		}਍ഀ
਍ഀ
		private string DteToString()਍ഀ
		{਍ഀ
			StringBuilder sret = new StringBuilder();਍ഀ
			foreach (displayTextElement vte in DisplayTextElementList)਍ഀ
			{਍ഀ
				if (vte.Type == E_TextElementType.Text || vte.Type == E_TextElementType.Symbol)਍ഀ
					sret.Append(vte.Text);਍ഀ
				else਍ഀ
				{਍ഀ
					displayLinkElement dle = vte as displayLinkElement;਍ഀ
					if (vte != null) sret.Append(dle.TextAndLink);਍ഀ
				}਍ഀ
			}਍ഀ
			string modtext = sret.ToString();਍ഀ
			return modtext;਍ഀ
		}਍ഀ
		private string FixRoUsgReplacements(string p, Dictionary<int, ContentRoUsage> roUsgReplacements)਍ഀ
		{਍ഀ
			foreach (int oldid in roUsgReplacements.Keys)਍ഀ
			{਍ഀ
				p = p.Replace(string.Format("<CROUSGID={0}>", oldid), roUsgReplacements[oldid].ROUsageID.ToString());਍ഀ
			}਍ഀ
			return p;਍ഀ
		}਍ഀ
਍ഀ
		private Dictionary<int, ContentRoUsage> BuildRoUsgReplacements(ContentRoUsages contentRoUsages)਍ഀ
		{਍ഀ
			Dictionary<int, ContentRoUsage> retval = new Dictionary<int, ContentRoUsage>();਍ഀ
			foreach (ContentRoUsage rou in contentRoUsages)਍ഀ
			{਍ഀ
				if (rou.ROUsageID < 0) retval.Add(rou.ROUsageID, rou);਍ഀ
			}਍ഀ
			return retval;਍ഀ
		}਍ഀ
		private string FixCtReplacements(string p, Dictionary<int, ContentTransition> ctReplacements)਍ഀ
		{਍ഀ
			foreach (int oldid in ctReplacements.Keys)਍ഀ
			{਍ഀ
				p = p.Replace(string.Format("<CTID={0}>",oldid),ctReplacements[oldid].TransitionID.ToString()); ਍ഀ
			}਍ഀ
			return p;਍ഀ
		}਍ഀ
਍ഀ
		private Dictionary<int, ContentTransition> BuildCtReplacements(ContentTransitions contentTransitions)਍ഀ
		{਍ഀ
			Dictionary<int, ContentTransition> retval = new Dictionary<int, ContentTransition>();਍ഀ
			foreach (ContentTransition ct in contentTransitions)਍ഀ
			{਍ഀ
				if (ct.TransitionID < 0) retval.Add(ct.TransitionID, ct);਍ഀ
			}਍ഀ
			return retval;਍ഀ
		}਍ഀ
		private void ProcessRoTranChanges(Item itm, List<displayLinkElement> origList)਍ഀ
		{਍ഀ
			// go through list.  Note that only linked items are in the origList.਍ഀ
			//	1)	delete any that are in origList but not in the DisplayTextElementList਍ഀ
			//		(that represents the current text & links)਍ഀ
			//	2)	add any that are only in DisplayTextElementList਍ഀ
			//	3)	delete/add for modify?਍ഀ
਍ഀ
			// delete first - if in original, but not in current list, delete the one਍ഀ
			// in the original list.਍ഀ
			foreach (displayLinkElement odte in origList)਍ഀ
			{਍ഀ
				bool found = false;਍ഀ
				foreach (displayTextElement dte in DisplayTextElementList)਍ഀ
				{਍ഀ
					if (dte.Type == odte.Type)਍ഀ
					{਍ഀ
						displayLinkElement l_dte = (displayLinkElement)dte;਍ഀ
						if (odte.Link == l_dte.Link)਍ഀ
						{਍ഀ
							found = true;਍ഀ
							break;਍ഀ
						}਍ഀ
					}਍ഀ
				}਍ഀ
				// remove the link element from the item.਍ഀ
				if (!found)਍ഀ
				{਍ഀ
					// Get record id for ro or trans and then find the associated ro or transition਍ഀ
					// in the item's list. remove it.਍ഀ
					int recid = -1;਍ഀ
					if (odte.Type != E_TextElementType.ReferencedObject)਍ഀ
					{਍ഀ
						int sp = odte.Link.IndexOf(" ") + 1;   // get past tran type਍ഀ
						string srecid = odte.Link.Substring(sp, odte.Link.IndexOf(" ", sp) - sp);਍ഀ
						recid = System.Convert.ToInt32(srecid);਍ഀ
						foreach (ContentTransition ct in itm.MyContent.ContentTransitions)਍ഀ
						{਍ഀ
							if (ct.TransitionID == recid)਍ഀ
							{਍ഀ
								itm.MyContent.ContentTransitions.Remove(ct);਍ഀ
								break;਍ഀ
							}਍ഀ
						}਍ഀ
					}਍ഀ
					else਍ഀ
					{਍ഀ
						int sp = odte.Link.IndexOf(" "); ਍ഀ
						//rousageid starts after "ReferencedObject:", i.e. index in link of 17਍ഀ
						string srecid = odte.Link.Substring(17, sp-17);਍ഀ
						recid = System.Convert.ToInt32(srecid);਍ഀ
						foreach (ContentRoUsage cr in itm.MyContent.ContentRoUsages)਍ഀ
						{਍ഀ
							if (cr.ROUsageID == recid)਍ഀ
							{਍ഀ
								itm.MyContent.ContentRoUsages.Remove(cr);਍ഀ
								break;਍ഀ
							}਍ഀ
						}਍ഀ
					}਍ഀ
				}਍ഀ
			}਍ഀ
			// now do insert, i.e. in new list, but not in old.਍ഀ
			foreach (displayTextElement dte in DisplayTextElementList)਍ഀ
			{਍ഀ
				bool found = false;਍ഀ
				if (dte.Type == E_TextElementType.ReferencedObject || dte.Type == E_TextElementType.Transition || dte.Type == E_TextElementType.TransitionRange)਍ഀ
				{਍ഀ
					foreach (displayLinkElement odte in origList)਍ഀ
					{਍ഀ
						if (dte.Type == odte.Type)਍ഀ
						{਍ഀ
							// if the link is the same, it exists, so no action is required.਍ഀ
							displayLinkElement l_dte = (displayLinkElement)dte;਍ഀ
							if (odte.Link == l_dte.Link)਍ഀ
							{਍ഀ
								found = true;਍ഀ
								break;਍ഀ
							}਍ഀ
						}਍ഀ
					}਍ഀ
					// Insert the link (ro or transition) to the item਍ഀ
					if (!found)਍ഀ
					{਍ഀ
						if (dte.Type == E_TextElementType.ReferencedObject)  // do ro਍ഀ
						{਍ഀ
							displayLinkElement l_dte = (displayLinkElement)dte;਍ഀ
							Match m = Regex.Match(l_dte.Link, "([A-Za-z]*):(.*)");਍ഀ
							string linkstr = m.Groups[2].Value;਍ഀ
							string[] roparts = linkstr.Split(" ".ToCharArray());਍ഀ
							ContentRoUsage rousg = null;਍ഀ
							using (RODb rodb = RODb.Get(Convert.ToInt32(roparts[2])))਍ഀ
							{਍ഀ
								rousg = itm.MyContent.ContentRoUsages.Add(roparts[1], rodb);਍ഀ
							}਍ഀ
							l_dte.Link = l_dte.Link.Replace("<NewID>", string.Format("<CROUSGID={0}>", rousg.ROUsageID));਍ഀ
							l_dte.TextAndLink = l_dte.TextAndLink.Replace("<NewID>", string.Format("<CROUSGID={0}>", rousg.ROUsageID));਍ഀ
							break; ਍ഀ
						}਍ഀ
						else if (dte.Type == E_TextElementType.TransitionRange || dte.Type == E_TextElementType.Transition)਍ഀ
						{਍ഀ
							displayLinkElement l_dte = (displayLinkElement)dte;਍ഀ
							Match m = Regex.Match(l_dte.Link, "([A-Za-z]*):(.*)");਍ഀ
							string linkstr = m.Groups[2].Value;਍ഀ
							string[] tparts = linkstr.Split(" ".ToCharArray());਍ഀ
							int type = System.Convert.ToInt32(tparts[0]);਍ഀ
							int tr1 = System.Convert.ToInt32(tparts[2]);		// tparts[1] is token for tranid਍ഀ
							Item itm1 = Item.Get(tr1);਍ഀ
							Item itm2 = null;਍ഀ
							if (dte.Type == E_TextElementType.TransitionRange)਍ഀ
							{਍ഀ
								itm2 = Item.Get(System.Convert.ToInt32(tparts[2]));਍ഀ
							}਍ഀ
							else਍ഀ
								itm2 = itm1;਍ഀ
							ContentTransition ct = itm.MyContent.ContentTransitions.Add(itm1, itm2);਍ഀ
							ct.TranType = type;਍ഀ
							l_dte.Link = l_dte.Link.Replace("<NewID>", string.Format("<CTID={0}>", ct.TransitionID));਍ഀ
							l_dte.TextAndLink = l_dte.TextAndLink.Replace("<NewID>", string.Format("<CTID={0}>", ct.TransitionID));਍ഀ
						}਍ഀ
					}਍ഀ
				}਍ഀ
			}਍ഀ
		}਍ഀ
		private List<displayLinkElement> GetLinkList(List<displayTextElement> locDisplayTextElementList)਍ഀ
		{਍ഀ
			List<displayLinkElement> retList = new List<displayLinkElement>();਍ഀ
			foreach (displayTextElement vte in locDisplayTextElementList)਍ഀ
			{਍ഀ
				if (vte.Type == E_TextElementType.ReferencedObject || vte.Type == E_TextElementType.TransitionRange || vte.Type == E_TextElementType.Transition)਍ഀ
				{਍ഀ
					displayLinkElement tmp = (displayLinkElement)vte;਍ഀ
					displayLinkElement copy_vte = new displayLinkElement();਍ഀ
					copy_vte.Type = tmp.Type;਍ഀ
					copy_vte.Link = tmp.Link;਍ഀ
					copy_vte.Text = tmp.Text;਍ഀ
					retList.Add(copy_vte);਍ഀ
				}਍ഀ
			}਍ഀ
			return retList;਍ഀ
		}਍ഀ
		private void RtfToDisplayTextElements(RichTextBox rtb)਍ഀ
		{਍ഀ
			// For hardspaces, the windows richtextbox does some 'quirky' things:਍ഀ
			// A unicode representation of \u160? is sent INTO the rtb.  Coming out, ਍ഀ
			// that \u160? was translated to a \~ (by the underlying windows rtb).਍ഀ
			// Note that if the \~ is sent to the rtb, it is treated as a regular space,਍ഀ
			// i.e. no longer a hardspace, and actually is converted to a regular space.਍ഀ
			// SO, on the way out, convert any \~ to \u160?਍ഀ
			string noExtraRtfStr = rtb.Rtf.Replace(@"\~", @"\u160?");਍ഀ
਍ഀ
			// Check for two links in a row & if found, add separating rtf comment ਍ഀ
			// commands (these get removed in the richtextbox:਍ഀ
			noExtraRtfStr = noExtraRtfStr.Replace(@"[END><START]", @"[END>\v0 \v <START]");਍ഀ
਍ഀ
			// GetFontTable returns a non-negative number font number in the਍ഀ
			// font table for the unicode font, if it is used (otherwise -1)਍ഀ
			//int unicodeFont = GetFontTable(rtb.Rtf);਍ഀ
			਍ഀ
			// strip off all rtf commands...਍ഀ
			noExtraRtfStr = StripRtfCommands(noExtraRtfStr);਍ഀ
਍ഀ
			// Also, set back the hard dash to a regular dash...  Do this after the removal਍ഀ
			// of other rtf commands though since the \u8209 was surrounded by font commands਍ഀ
			// that, without there removal first, was also removing the dash. There is no਍ഀ
			// space after the unicode character with a "?" ending it! and this is the only਍ഀ
			// way it is entered (either thru a string replace or thru data entry).਍ഀ
			noExtraRtfStr = noExtraRtfStr.Replace(@"\u8209?", @"-");਍ഀ
਍ഀ
			DisplayTextElementList.Clear();਍ഀ
			int startIndex = 0;਍ഀ
			int index = -1;਍ഀ
			while ((index = FindTokenChar(noExtraRtfStr, startIndex)) > -1)਍ഀ
			{਍ഀ
				// Do any 'plain' text that preceeds the token.਍ഀ
				if (index > startIndex) DoTextElement(noExtraRtfStr, startIndex, index);਍ഀ
਍ഀ
				if (noExtraRtfStr[index + 1] == 'v')਍ഀ
					index = DoLink(noExtraRtfStr, index);਍ഀ
				else਍ഀ
					index = DoSymbol(noExtraRtfStr, startIndex, index);਍ഀ
				startIndex = index; // +1;਍ഀ
				if (startIndex >= noExtraRtfStr.Length) break;਍ഀ
			}਍ഀ
			// Add any remaining text.਍ഀ
			if (startIndex < noExtraRtfStr.Length) DoTextElement(noExtraRtfStr, startIndex, index);਍ഀ
		}਍ഀ
		private int SaveTextElement(string data, int startIndex, int index)਍ഀ
		{਍ഀ
			displayTextElement vte = new displayTextElement();਍ഀ
			vte.Type = E_TextElementType.Text;਍ഀ
			int len = (index == -1) ? data.Length - startIndex : index - startIndex;਍ഀ
			vte.Text = data.Substring(startIndex, len);਍ഀ
			DisplayTextElementList.Add(vte);਍ഀ
			return index;਍ഀ
		}਍ഀ
		private int SaveSymbolTE(string data, int startIndex)਍ഀ
		{਍ഀ
			displayLinkElement vte = new displayLinkElement();਍ഀ
			vte.Type = E_TextElementType.Symbol;਍ഀ
			// symbols are just the unicode/rtf command, no font associated with it਍ഀ
			// by the time it gets here... A symbol can be represented by \'xy or \uxyz?਍ഀ
			// if the \'xy is used the length of the symbol number will always be two,਍ഀ
			// otherwise find the index of the '?' to find the end.਍ഀ
			int endindx = -1;਍ഀ
			if (data[startIndex + 1] == '\'') endindx = startIndex + 3;਍ഀ
			else endindx = data.IndexOf("?", startIndex);਍ഀ
			if (endindx == -1) return startIndex; // not found - error਍ഀ
			vte.Text = data.Substring(startIndex, endindx - startIndex + 1);਍ഀ
			DisplayTextElementList.Add(vte);਍ഀ
			if (endindx+1<data.Length && data[endindx + 1] != ' ') return endindx;਍ഀ
			return endindx + 1;	// add one to get past the space that was added after a symbol (to end the font cmd)਍ഀ
		}਍ഀ
		private int GetFontTable(string rtf)਍ഀ
		{਍ഀ
			dicRtfFontTable = new Dictionary<int, string>();਍ഀ
			// return unicode (symbol) font number, if it exists, to expedite finding਍ഀ
			// the font for symbols.਍ഀ
			int unicodeFont = -1;਍ഀ
			int bindx = rtf.IndexOf(@"{\fonttbl");਍ഀ
			if (bindx < -1) return -1;਍ഀ
			int eindx = rtf.IndexOf("}}", bindx);਍ഀ
			// get font table string and then do regular expressions to get font number ਍ഀ
			// with font name.਍ഀ
			string tbl = rtf.Substring(bindx + 9, eindx - bindx - 8);਍ഀ
			tbl = tbl.Replace("{", "<");਍ഀ
			tbl = tbl.Replace("}", ">");਍ഀ
			string pat = @"(?:<\\f)([0-9]+)(?:[\S]+ )([\w ]+)";਍ഀ
			StringBuilder sb = new StringBuilder();਍ഀ
			foreach (Match m in Regex.Matches(tbl, pat))਍ഀ
			{਍ഀ
				int num = Convert.ToInt32(m.Result("${1}"));਍ഀ
				string nam = m.Result("${2}");਍ഀ
				dicRtfFontTable.Add(num, nam);਍ഀ
				if ((unicodeFont == -1) && (nam == "Arial Unicode MS")) unicodeFont = num;਍ഀ
			}਍ഀ
			return unicodeFont;਍ഀ
		}਍ഀ
		private string RemoveRtfStyles(string rtf)਍ഀ
		{਍ഀ
			string retval = rtf;਍ഀ
			// remove rtf commands for any styles that were added.  Note that if਍ഀ
			// the entire item has a style, and also contains 'pieces' of text with਍ഀ
			// the same style, the underlying rtf box removes the embedded rtf commands,਍ഀ
			// for example, if the entire step is bolded, and 'THEN' has bold on/off਍ഀ
			// surrounding it, the rtf box removes the bold around the 'THEN'਍ഀ
			// These remove the command with a following space or the command alone,਍ഀ
			// either case may exist, because if there are rtf commands following the਍ഀ
			// style command, there will be no space character following the style command.਍ഀ
			if (((TextFont.Style & E_Style.Bold) > 0) || ((TextFont.Style & E_Style.MmBold) > 0))਍ഀ
			{਍ഀ
				retval = Regex.Replace(retval, @"\\b0 ?", "");਍ഀ
				retval = Regex.Replace(retval, @"\\b ?","");਍ഀ
			}਍ഀ
			if ((TextFont.Style & E_Style.Underline) > 0)਍ഀ
			{਍ഀ
				retval = Regex.Replace(retval, @"\\ulnone ?", "");਍ഀ
				retval = Regex.Replace(retval, @"\\ul ?", "");਍ഀ
			}਍ഀ
			if ((TextFont.Style & E_Style.Italics) > 0)਍ഀ
			{਍ഀ
				retval = Regex.Replace(retval, @"\\i0 ?", "");਍ഀ
				retval = Regex.Replace(retval, @"\\i ?", "");਍ഀ
			}਍ഀ
			return retval;਍ഀ
		}਍ഀ
		public string ReplaceRTFClause(Match m)਍ഀ
		{਍ഀ
			switch (m.Value[1])਍ഀ
			{਍ഀ
				case 'u':਍ഀ
					if (Regex.IsMatch(m.Value, @"\\u[0-9]+"))਍ഀ
						return m.Value; // Special Charcaters਍ഀ
					if (Regex.IsMatch(m.Value, @"\\ulnone"))਍ഀ
						return m.Value;਍ഀ
					if (Regex.IsMatch(m.Value, @"\\ul.*"))਍ഀ
						return m.Value; // Underline਍ഀ
					break;਍ഀ
				case '\'': // Special Character਍ഀ
					return m.Value;਍ഀ
				case 'b': // Bold਍ഀ
					return m.Value;਍ഀ
				case 's':	// sub or super....਍ഀ
					if (m.Value == @"\sub") return m.Value;਍ഀ
					if (m.Value == @"\super") return m.Value;਍ഀ
					break;਍ഀ
				case 'n':	// nosubsuper...਍ഀ
					if (m.Value == @"\nosupersub") return m.Value;਍ഀ
					break;਍ഀ
				case 'i': // Italics਍ഀ
					return m.Value;਍ഀ
				case '{': // look for escape for curly braces:਍ഀ
					return m.Value;਍ഀ
				case '}':਍ഀ
					return m.Value;਍ഀ
				case 'v': // save link hidden info਍ഀ
					if (m.Value == @"\v") return m.Value;	// comment part of link਍ഀ
					// end comment may end in space or may end in '\' if another rtf command,਍ഀ
					// or may end at end of string.  First check for space, keep it in string਍ഀ
					// if it is there.਍ഀ
					if (Regex.IsMatch(m.Value, @"\\v0 "))਍ഀ
						return m.Value;਍ഀ
					if (Regex.IsMatch(m.Value, @"\\v0"))਍ഀ
						return m.Value;਍ഀ
					break;਍ഀ
				case 'p':਍ഀ
					if (m.Value == @"\par") return "\r\n";਍ഀ
					if (m.Value == @"\protect")਍ഀ
						return m.Value;਍ഀ
					if (m.Value == @"\protect0")਍ഀ
						return m.Value;਍ഀ
					break;਍ഀ
				case 'f':   // handle fonts separately because they may or may not have a space after them਍ഀ
					if (m.Value[2]>='0' && m.Value[2]<='9')return m.Value;਍ഀ
					break;਍ഀ
			}਍ഀ
			return "";//Strip All਍ഀ
		}਍ഀ
		private string StripRtfCommands(string rtf)਍ഀ
		{਍ഀ
			// replace \{ & \} with (![ & (!] respectively and then redo at end.  The curly braces਍ഀ
			// are rtf so were getting removed and/or not handled correctly.਍ഀ
			string retval = rtf.Replace(@"\{", @"(![");਍ഀ
			retval = retval.Replace(@"\}", @"(!]");਍ഀ
			retval = Regex.Replace(retval, @"[\r\n]", "", RegexOptions.Singleline); // Strip Carriage Returns and Newlines਍ഀ
			retval = Regex.Replace(retval, @"^\{(.*)\}$", "$1", RegexOptions.Singleline); // Strip Opening and Closing Braces਍ഀ
			retval = Regex.Replace(retval, @"\{[^{]*?\}", "", RegexOptions.Singleline); // Strip Clauses - remove anything from curly braces਍ഀ
			retval = Regex.Replace(retval, @"\{[^{]*?\}", "", RegexOptions.Singleline); // Strip Clauses - remove anything from curly braces਍ഀ
			retval = Regex.Replace(retval, @"\\f[0-9] ", "");	// remove font command with ending space਍ഀ
			retval = Regex.Replace(retval, @"\\f[0-9]", "");	// remove font command without ending space਍ഀ
			retval = Regex.Replace(retval, @"\\[^ \\?]+", new MatchEvaluator(ReplaceRTFClause));  // take backslash xyz and evaluates them਍ഀ
			// remove a space if there is one as the first character..਍ഀ
			if (retval[0]==' ')retval = retval.Remove(0, 1);਍ഀ
			// remove \r\n at end of string - this was added with the \par at the end of string by the rtf box਍ഀ
			if (retval.Substring(retval.Length - 2, 2) == "\r\n") retval = retval.Remove(retval.Length - 2, 2);਍ഀ
			if (retval.Length == 0) return "";਍ഀ
			if (retval.Substring(retval.Length - 2, 2) == @"\v") retval = retval.Remove(retval.Length - 2, 2);਍ഀ
			retval = RemoveRtfStyles(retval);਍ഀ
			retval = retval.Replace(@"(![", @"\{");਍ഀ
			retval = retval.Replace(@"(!]", @"\}");਍ഀ
			return retval;਍ഀ
		}਍ഀ
		#endregion਍ഀ
		#region StyleData਍ഀ
		private VE_Font GetItemFont()਍ഀ
		{਍ഀ
			VE_Font font = null;਍ഀ
			FormatInfo format = _MyItemInfo.ActiveFormat;਍ഀ
			int type = (int)_MyItemInfo.MyContent.Type;਍ഀ
			switch (type/10000)਍ഀ
			{਍ഀ
				case 0:	// procedure਍ഀ
					font = format.PlantFormat.FormatData.Font;਍ഀ
					break;਍ഀ
				case 1: // section਍ഀ
					font = format.PlantFormat.FormatData.SectData.SectionHeader.Font;਍ഀ
					break;਍ഀ
				case 2: // step types਍ഀ
					int typindx = type - 20000;  // what to do for other types rather than steps਍ഀ
					font = format.PlantFormat.FormatData.StepDataList[typindx].Font;਍ഀ
					break;਍ഀ
			}਍ഀ
			TextFont = font;਍ഀ
			return font;਍ഀ
		}਍ഀ
		#endregion਍ഀ
		#region DoListElements਍ഀ
		private int FindTokenChar(string txt, int startIndex)਍ഀ
		{਍ഀ
			// 'tokens' are for symbols and links (ro & transitions).  symbols are represented by \u<num>਍ഀ
			// and links are represented by \v <START]\v0 'link text'\v #'link info'[END>\v0਍ഀ
			bool done = false;਍ഀ
			while (!done)਍ഀ
			{਍ഀ
				// There were two links in a row, very special case, handle here...਍ഀ
				//if (TwoLinksInARow)਍ഀ
				//{਍ഀ
				//    int tindx = txt.IndexOf("<START]", startIndex);਍ഀ
				//    if (tindx > 0)਍ഀ
				//    {਍ഀ
				//        TwoLinksInARow = false;਍ഀ
				//        return tindx;਍ഀ
				//    }਍ഀ
				//}਍ഀ
				int indx = txt.IndexOf('\\', startIndex);਍ഀ
				if (indx < 0) return indx;਍ഀ
				// see if symbol (but not underline) or another rtf command: has a 'u' ਍ഀ
				// followed by a non-underline or single quote, and if so, return it.  ਍ഀ
				if (((txt[indx + 1] == 'u' && txt[indx + 2] != 'l')) || (txt[indx + 1] == '\'')) return indx;਍ഀ
				// see if link਍ഀ
				if (txt[indx + 1] == 'v') return indx;਍ഀ
				// Otherwise, get next index, must have been a slash or other rtf command.਍ഀ
				startIndex = indx + 1;਍ഀ
			}਍ഀ
			return -1;਍ഀ
		}਍ഀ
		private int DoTextElement(string text, int startIndex, int index)਍ഀ
		{਍ഀ
			displayTextElement vte = new displayTextElement();਍ഀ
			vte.Type = E_TextElementType.Text;਍ഀ
			int len = (index == -1) ? text.Length - startIndex : index - startIndex;਍ഀ
			vte.Text = text.Substring(startIndex, len);਍ഀ
			DisplayTextElementList.Add(vte);਍ഀ
			return index+1;਍ഀ
		}਍ഀ
		private string CreateLink(E_TextElementType type, string linktxt)਍ഀ
		{਍ഀ
			string retlink = "";਍ഀ
			if (type == E_TextElementType.ReferencedObject)਍ഀ
				retlink = "#Link:ReferencedObject:" + linktxt;਍ഀ
			else if (type == E_TextElementType.Transition)਍ഀ
				retlink = "#Link:Transition:" + linktxt;਍ഀ
			else਍ഀ
				retlink = "#Link:TransitionRange:" + linktxt;਍ഀ
		਍ഀ
			return retlink;਍ഀ
		}਍ഀ
		private int DoLink(string text, int startIndex)਍ഀ
		{਍ഀ
			int retval = -1;਍ഀ
			int fnd = text.IndexOf("#Link:", startIndex);਍ഀ
			if (text.Substring(fnd + 6, 3) == "Ref")਍ഀ
				retval = DoRO(text, startIndex);਍ഀ
			else਍ഀ
				retval = DoTran(text, startIndex);਍ഀ
			return retval;਍ഀ
		}਍ഀ
		//bool TwoLinksInARow = false;਍ഀ
		private int DoRO(string text, int index)਍ഀ
		{਍ഀ
			displayLinkElement vte = new displayLinkElement();਍ഀ
			vte.Type = E_TextElementType.ReferencedObject;਍ഀ
			return DoLinkElements(text, index, vte);਍ഀ
		}਍ഀ
		private string FixTransition(string link, string text)਍ഀ
		{਍ഀ
			if (link.IndexOf("<NewID>") != -1) return text;਍ഀ
			int transitionID = Convert.ToInt32(link.Split(" ".ToCharArray())[1]);਍ഀ
			// Find the transition਍ഀ
			if (_MyItemInfo.MyContent.ContentTransitionCount <= 0) return "*Resolved Transition Text*";਍ഀ
			foreach (TransitionInfo ti in _MyItemInfo.MyContent.ContentTransitions)਍ഀ
			{਍ഀ
				if (ti.TransitionID == transitionID)਍ഀ
				{਍ഀ
					string path = ti.ResolvePathTo(_MyFormat, _MyItemInfo, ItemInfo.Get(ti.ToID), ti.RangeID==0?null:ItemInfo.Get(ti.RangeID));਍ഀ
					return path;਍ഀ
				}਍ഀ
			}਍ഀ
			return text;਍ഀ
		}਍ഀ
		private int DoTran(string text,int index)਍ഀ
		{਍ഀ
			displayLinkElement vte = new displayLinkElement();਍ഀ
			਍ഀ
			// determine if Range by checking for "R" after Transition (otherwise ":")਍ഀ
			int linkindx = text.IndexOf(@"#Link", index);਍ഀ
			vte.Type =  (text[linkindx+16]=='R')?E_TextElementType.TransitionRange:E_TextElementType.Transition;਍ഀ
			return  DoLinkElements(text, index, vte);਍ഀ
		}਍ഀ
਍ഀ
		private int DoLinkElements(string text, int index, displayLinkElement vte)਍ഀ
		{਍ഀ
			// Find the 'end comment' for the <START], can't count characters਍ഀ
			// because there may be formatting characters such as \b or \ul before਍ഀ
			// the \v0਍ഀ
			int linkIndx = text.IndexOf(@"#Link", index);਍ഀ
			int endStartTknIndx = text.IndexOf(@"\v0 ", index);਍ഀ
			int endTextIndx = text.IndexOf(@"\v ", endStartTknIndx);  // find end of text਍ഀ
			vte.Text = text.Substring(endStartTknIndx + 4, endTextIndx - endStartTknIndx - 4); // 4 for \v0਍ഀ
਍ഀ
			// Now get the link part.  It can be terminated by a '\v0' or an [END>਍ഀ
			int endLinkIndxV = text.IndexOf(@"\v0 ", linkIndx);਍ഀ
			if (endLinkIndxV == -1) endLinkIndxV = text.IndexOf(@"\v0", linkIndx);  // at end of string਍ഀ
			int endLinkIndxE = text.IndexOf(@"[END>", linkIndx);਍ഀ
			int endLinkIndx = (endLinkIndxV < endLinkIndxE) ? endLinkIndxV : endLinkIndxE;਍ഀ
			vte.Link = text.Substring(linkIndx + 6, endLinkIndx - linkIndx - 6);  // 6 for #Link:਍ഀ
਍ഀ
			string tmptxt = null;਍ഀ
			if (vte.Type != E_TextElementType.ReferencedObject)਍ഀ
			{਍ഀ
				tmptxt = FixTransition(vte.Link, vte.Text);਍ഀ
				vte.Text = tmptxt;਍ഀ
			}਍ഀ
਍ഀ
			// Now get the entire text & link. Account for various ending possibilities:਍ഀ
			// ends with '\v0\'; ends with '\v0 '; ends with '\v0' (end of string);਍ഀ
			// ends with '[END>' if two in a row - will have <START]਍ഀ
			int endToken = (endLinkIndx == endLinkIndxE)?endLinkIndx+3:text.IndexOf(@"[END>", endLinkIndx + 3); // get past end of link਍ഀ
			int endComment = text.IndexOf(@"\v0", endToken);਍ഀ
਍ഀ
			//// if the above is at end of string, don't bother with looking for another਍ഀ
			//// <START]਍ഀ
			//int startToken = -1;਍ഀ
			//if (endLinkIndxE + 4 + 7 < text.Length)  // is there enough length of text for another link?਍ഀ
			//    startToken = text.IndexOf(@"<START]", endLinkIndxE + 4);਍ഀ
			int rettoken = 0;਍ഀ
			//if (startToken == -1 || endLinkIndxV > startToken) // don't worry about two links in a row....਍ഀ
			//{਍ഀ
				int retlen = 4;਍ഀ
				if (endComment + 3 == text.Length) retlen = 3;਍ഀ
				else if (text[endComment + 3] == '\\') retlen = 3;਍ഀ
				vte.TextAndLink = text.Substring(index, endComment - index + retlen);਍ഀ
				rettoken = endComment + retlen;਍ഀ
਍ഀ
			//}਍ഀ
			//else਍ഀ
			//{਍ഀ
			//    TwoLinksInARow = true;਍ഀ
			//    vte.TextAndLink = text.Substring(index, startToken - index) + @"\v0 ";਍ഀ
			//    rettoken = endComment + 5;    // 5 for "\v0 "਍ഀ
			//}਍ഀ
			if (vte.Type != E_TextElementType.ReferencedObject) vte.TextAndLink = vte.TextAndLink = vte.TextAndLink.Replace("(Resolved Transition Text)", tmptxt);਍ഀ
			DisplayTextElementList.Add(vte);਍ഀ
			return rettoken;਍ഀ
		}਍ഀ
		private int DoSymbol(string text, int startIndex, int index)਍ഀ
		{਍ഀ
			displayTextElement vte = new displayTextElement();਍ഀ
			vte.Type = E_TextElementType.Symbol;਍ഀ
			// symbols are the unicode/rtf command. A symbol can be represented by \'xy or ਍ഀ
			// in the text from the database \uxyz?. If the \'xy is used the length of the ਍ഀ
			// symbol number will always be two, otherwise find the index of the '?' to ਍ഀ
			// find the end.  ਍ഀ
			int endindx = -1;਍ഀ
			if (text[index + 1] == '\'') endindx = index + 3;਍ഀ
			else endindx = text.IndexOf("?", index);਍ഀ
			vte.Text = text.Substring(index, endindx - index + 1);਍ഀ
			DisplayTextElementList.Add(vte);਍ഀ
			return endindx+1; ਍ഀ
		}਍ഀ
		#endregion਍ഀ
		#region ReplaceWords਍ഀ
		private ReplaceStr _rs;਍ഀ
		private string ReplaceIt(Match m)਍ഀ
		{਍ഀ
			string s = m.ToString();਍ഀ
			string t = s.Replace(_rs.ReplaceWord, _rs.ReplaceWith);਍ഀ
			return m.ToString().Replace(_rs.ReplaceWord, _rs.ReplaceWith);਍ഀ
		}਍ഀ
		private string DoReplaceWords(string Text)਍ഀ
		{਍ഀ
			ReplaceStrList rsl = _MyFormat.PlantFormat.FormatData.SectData.ReplaceStrList;਍ഀ
			foreach (ReplaceStr rs in rsl)਍ഀ
			{਍ഀ
				if (_MyItemInfo.MyContent.Type < 20000) return Text;   // for now only replace in steps.਍ഀ
				bool replaceit = false;਍ഀ
਍ഀ
				// note that the order of this check is important.  Check in this order...਍ഀ
				// background here਍ഀ
				if (_MyItemInfo.IsHigh && (rs.Flag & E_ReplaceFlags.High)>0) replaceit = true;਍ഀ
				else if ((_MyItemInfo.IsTable || _MyItemInfo.IsFigure) && (rs.Flag & E_ReplaceFlags.Table) > 0) replaceit = true;਍ഀ
				else if (_MyItemInfo.IsInRNO && (rs.Flag & E_ReplaceFlags.RNO) > 0) replaceit = true;਍ഀ
				else if (_MyItemInfo.IsCaution && (rs.Flag & E_ReplaceFlags.Caution) > 0) replaceit = true;਍ഀ
				else if (_MyItemInfo.IsNote && (rs.Flag & E_ReplaceFlags.Note) > 0) replaceit = true;਍ഀ
				else if (_MyItemInfo.IsInFirstLevelSubStep && (rs.Flag & E_ReplaceFlags.Substep) > 0) replaceit = true;਍ഀ
				else if (_MyItemInfo.IsAccPages & (rs.Flag & E_ReplaceFlags.Attach) > 0) replaceit = true;਍ഀ
਍ഀ
				if (replaceit)਍ഀ
				{਍ഀ
					// CASEINSENS: Do ReplaceWords for all words that match, regardless of case, and replace ਍ഀ
					// with the ReplaceWith string as is਍ഀ
					if ((rs.Flag & E_ReplaceFlags.CaseInsens) > 0)਍ഀ
					{਍ഀ
						string res = "";਍ഀ
						string fortest = Text.ToUpper();਍ഀ
						string pat = @"(?<=\W|^)" + rs.ReplaceWord.ToUpper() + @"(?=\W|$)";਍ഀ
						int cpindx = 0;਍ഀ
						foreach (Match m in Regex.Matches(fortest, pat))਍ഀ
						{਍ഀ
							res += Text.Substring(cpindx, m.Index-cpindx);਍ഀ
							cpindx += (m.Index - cpindx);਍ഀ
							res += rs.ReplaceWith;਍ഀ
							cpindx += rs.ReplaceWord.Length;਍ഀ
						}਍ഀ
						if (cpindx < Text.Length) res += Text.Substring(cpindx, Text.Length - cpindx);਍ഀ
						Text = res;਍ഀ
					}਍ഀ
					// CASEINSENSALL: Do ReplaceWords for all words that match the ReplaceWord, regardless of case਍ഀ
					else if ((rs.Flag & E_ReplaceFlags.CaseInsensAll) > 0)਍ഀ
					{਍ഀ
						// not in hlp਍ഀ
					}਍ഀ
					// CASEINSENSFIRST:	Do ReplaceWords for all words that exactly match the ReplaceWord,  ਍ഀ
					// except the case where the first character may be different਍ഀ
					else if ((rs.Flag & E_ReplaceFlags.CaseInsensFirst) > 0)਍ഀ
					{਍ഀ
						// not in hlp਍ഀ
					}਍ഀ
					else਍ഀ
					{਍ഀ
						string pat = @"(?<=\W|^)" + rs.ReplaceWord + @"(?=\W|$)";਍ഀ
						Text = Regex.Replace(Text, pat, rs.ReplaceWith);਍ഀ
					}਍ഀ
						਍ഀ
				}਍ഀ
			}਍ഀ
			return Text;਍ഀ
		}਍ഀ
		#endregion਍ഀ
	}਍ഀ
	#region displayTextElementClass਍ഀ
	public enum E_TextElementType : uint਍ഀ
	{਍ഀ
		Text = 0,਍ഀ
		Transition = 1,਍ഀ
		TransitionRange = 2,਍ഀ
		ReferencedObject = 3,਍ഀ
		Symbol = 4਍ഀ
	};਍ഀ
	public class displayTextElement਍ഀ
	{਍ഀ
		private E_TextElementType _Type;਍ഀ
		public E_TextElementType Type਍ഀ
		{਍ഀ
			get { return _Type; }਍ഀ
			set { _Type = value; }਍ഀ
		}਍ഀ
		private string _Text;਍ഀ
		public string Text਍ഀ
		{਍ഀ
			get { return _Text; }਍ഀ
			set { _Text = value; }਍ഀ
		}਍ഀ
	}਍ഀ
	public class displayLinkElement : displayTextElement਍ഀ
	{਍ഀ
		private string _Link;਍ഀ
		public string Link਍ഀ
		{਍ഀ
			get { return _Link; }਍ഀ
			set { _Link = value; }਍ഀ
		}਍ഀ
		private string _TextAndLink;਍ഀ
		public string TextAndLink਍ഀ
		{਍ഀ
			get { return _TextAndLink; }਍ഀ
			set { _TextAndLink = value; }਍ഀ
		}਍ഀ
	}਍ഀ
	#endregion਍ഀ
	਍ഀ
}਍ഀ