From a9cf38ecf227ee4161152b0b9a24dd56dda6a161 Mon Sep 17 00:00:00 2001
From: Alex Mickelson <alexmickelson96@gmail.com>
Date: Fri, 29 Mar 2024 14:34:38 -0600
Subject: [PATCH] fixed multiline regex

---
 .../Markdown/Quiz/MultipleAnswersTests.cs        | 16 +++++++++++++++-
 Management/Models/Local/Quiz/LocalQuiz.cs        |  3 ++-
 .../Models/Local/Quiz/LocalQuizQuestion.cs       |  6 +++---
 .../Models/Local/Quiz/LocalQuizQuestionAnswer.cs |  7 ++++++-
 4 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/Management.Test/Markdown/Quiz/MultipleAnswersTests.cs b/Management.Test/Markdown/Quiz/MultipleAnswersTests.cs
index 41e6ebe..3adc7fc 100644
--- a/Management.Test/Markdown/Quiz/MultipleAnswersTests.cs
+++ b/Management.Test/Markdown/Quiz/MultipleAnswersTests.cs
@@ -54,7 +54,7 @@ DueAt: 2023-08-21T23:59:00
 LockAt: 2023-08-21T23:59:00
 AssignmentGroup: Assignments
 AllowedAttempts: -1
-Description: this is the 
+Description: this is the
 multi line
 description
 ---
@@ -80,4 +80,18 @@ Which events are triggered when the user clicks on an input field?
     firstQuestion.Answers.ElementAt(3).Text.Should().Be("submit");
   }
 
+
+  [Test]
+  public void CanUseBracesInAnswerFormultipleAnswer()
+  {
+    var rawMarkdownQuestion = @"
+Which events are triggered when the user clicks on an input field?
+[*] `int[] theThing()`
+[] keydown
+";
+
+    var question = LocalQuizQuestion.ParseMarkdown(rawMarkdownQuestion, 0);
+    question.Answers.First().Text.Should().Be("`int[] theThing()`");
+    question.Answers.Count().Should().Be(2);
+  }
 }
diff --git a/Management/Models/Local/Quiz/LocalQuiz.cs b/Management/Models/Local/Quiz/LocalQuiz.cs
index 8d13375..bde6d4b 100644
--- a/Management/Models/Local/Quiz/LocalQuiz.cs
+++ b/Management/Models/Local/Quiz/LocalQuiz.cs
@@ -67,7 +67,8 @@ Description: {Description}
     var settings = splitInput[0];
     var quizWithoutQuestions = getQuizWithOnlySettings(settings);
 
-    var questions = splitInput[1..]
+    var rawQuestions = splitInput[1..];
+    var questions = rawQuestions
       .Where(str => !string.IsNullOrWhiteSpace(str))
       .Select((q, i) => LocalQuizQuestion.ParseMarkdown(q, i))
       .ToArray();
diff --git a/Management/Models/Local/Quiz/LocalQuizQuestion.cs b/Management/Models/Local/Quiz/LocalQuizQuestion.cs
index 1efe8f4..9ef4b88 100644
--- a/Management/Models/Local/Quiz/LocalQuizQuestion.cs
+++ b/Management/Models/Local/Quiz/LocalQuizQuestion.cs
@@ -114,7 +114,7 @@ public record LocalQuizQuestion
     if (linesWithoutPoints[^1].Equals("short_answer", StringComparison.CurrentCultureIgnoreCase))
       return "short_answer";
 
-    var answerLines = getAnswersGroupedByLines(linesWithoutPoints, questionIndex);
+    var answerLines = getAnswerStringsWithMultilineSupport(linesWithoutPoints, questionIndex);
     var firstAnswerLine = answerLines.First();
     var isMultipleChoice =
       firstAnswerLine.StartsWith("a)")
@@ -138,7 +138,7 @@ public record LocalQuizQuestion
     return "";
   }
 
-  private static List<string> getAnswersGroupedByLines(string[] linesWithoutPoints, int questionIndex)
+  private static List<string> getAnswerStringsWithMultilineSupport(string[] linesWithoutPoints, int questionIndex)
   {
     var indexOfAnswerStart = linesWithoutPoints
       .ToList()
@@ -175,7 +175,7 @@ public record LocalQuizQuestion
 
   private static LocalQuizQuestionAnswer[] getAnswers(string[] linesWithoutPoints, int questionIndex, string questionType)
   {
-    var answerLines = getAnswersGroupedByLines(linesWithoutPoints, questionIndex);
+    var answerLines = getAnswerStringsWithMultilineSupport(linesWithoutPoints, questionIndex);
 
     var answers = answerLines
       .Select((a, i) => LocalQuizQuestionAnswer.ParseMarkdown(a, questionType))
diff --git a/Management/Models/Local/Quiz/LocalQuizQuestionAnswer.cs b/Management/Models/Local/Quiz/LocalQuizQuestionAnswer.cs
index 0d44199..2bf2dbb 100644
--- a/Management/Models/Local/Quiz/LocalQuizQuestionAnswer.cs
+++ b/Management/Models/Local/Quiz/LocalQuizQuestionAnswer.cs
@@ -30,7 +30,12 @@ public record LocalQuizQuestionAnswer
     }
 
     string startingQuestionPattern = @"^(\*?[a-z]?\))|\[\s*\]|\[\*\]|\^ ";
-    var text = Regex.Replace(input, startingQuestionPattern, string.Empty).Trim();
+
+    int replaceCount = 0;
+    var text = Regex.Replace(input, startingQuestionPattern, (m) =>
+    {
+      return replaceCount++ == 0 ? "" : m.Value;
+    }).Trim();
     return new LocalQuizQuestionAnswer()
     {
       Correct = isCorrect,