///<summary>Called on KeyUp from various textBoxes in the program to look for a ?abbrev and attempt to substitute. Substitutes the text if found.</summary>
public static string Substitute(string text, QuickPasteType type)
{
//No need to check RemotingRole; no call to db.
List <QuickPasteCat> listQuickPasteCatsForType = QuickPasteCats.GetCategoriesForType(type);
if (listQuickPasteCatsForType.Count == 0)
{
return(text);
}
List <QuickPasteNote> listQuickPasteNotes = QuickPasteNotes.GetForCats(listQuickPasteCatsForType.OrderBy(x => x.ItemOrder).ToList());
for (int i = 0; i < listQuickPasteNotes.Count; i++)
{
if (listQuickPasteNotes[i].Abbreviation == "")
{
continue;
}
//We have to replace all $ chars with $$ because Regex.Replace allows "Substitutions" in the replacement parameter.
//The replacement parameter specifies the string that is to replace each match in input. replacement can consist of any combination of literal
//text and substitutions. For example, the replacement pattern a*${test}b inserts the string "a*" followed by the substring that is matched by
//the test capturing group, if any, followed by the string "b".
//The * character is not recognized as a metacharacter within a replacement pattern.
//See https://msdn.microsoft.com/en-us/library/taz3ak2f(v=vs.110).aspx for more information.
string quicknote = listQuickPasteNotes[i].Note.Replace("$", "$$");
//Techs were complaining about quick notes replacing text that was pasted into text boxes (e.g. when a URL happens to have ?... that matches a quick note abbr).
//The easiest way to deal with this is to not allow the regular expression to replace strings that have a non-whitespace character before or after the abbr.
//The regex of '...(?<!\S)...' is utilizing an optional space via a lookbehind and visa versa with '...(?!\S)...' as a lookahead.
var pattern = @"(?<spaceBefore>(?<!\S))\?" + Regex.Escape(listQuickPasteNotes[i].Abbreviation) + @"(?<spaceAfter>(?!\S))";
var replacePattern = "${spaceBefore}" + (quicknote) + "${spaceAfter}";
text = Regex.Replace(text, pattern, replacePattern, RegexOptions.None);
}
//If we didn't find any matches then return the passed in text
return(text);
}
