Merge pull request #2 from Denis-Olejnik/dev

Lexical & syntax (AST) analyzers is released!

LexicalAnalyzer.csproj

@@ -46,7 +46,7 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="Source\Analyzer.cs" />
+    <Compile Include="Source\Lexer.cs" />
     <Compile Include="Source\Lex.cs" />
     <Compile Include="MainForm.cs">
       <SubType>Form</SubType>
@@ -56,6 +56,8 @@
     </Compile>
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Source\Parser.cs" />
+    <Compile Include="Source\ParserRules.cs" />
     <EmbeddedResource Include="MainForm.resx">
       <DependentUpon>MainForm.cs</DependentUpon>
     </EmbeddedResource>

MainForm.cs

@@ -1,5 +1,7 @@
 using LexicalAnalyzer.LexicalAnalyzer.Source;
+using LexicalAnalyzer.Source;
 using System;
+using System.Collections;
 using System.Collections.Generic;
 using System.IO;
 using System.Windows.Forms;
@@ -8,9 +10,29 @@ namespace LexicalAnalyzer
 {
     public partial class MainForm : Form
     {
+        private const bool DEV_MODE = true;
+        private bool syntaxTreeIsExpanded = false;
+
+        private ArrayList list = new ArrayList();
+
         public MainForm()
         {
             InitializeComponent();
+
+            if (DEV_MODE)
+            {
+                textBox_FilePath.Text = "X:\\Dev\\Projects\\GUMRF\\LexicalAnalyzer\\Tests\\Normal code Simple.txt";
+                if (File.Exists(textBox_FilePath.Text))
+                {
+                    using (StreamReader reader = new StreamReader(textBox_FilePath.Text))
+                    {
+                        string fileContent = reader.ReadToEnd();
+                        textBox_FileViewer.Text = fileContent;
+                    }
+
+                    fillTabsContent();
+                }
+            }
         }
 
         private void button_openFile_Click(object sender, EventArgs e)
@@ -34,7 +56,7 @@ private void button_openFile_Click(object sender, EventArgs e)
                             textBox_FilePath.Text = filePath;
                             textBox_FileViewer.Text = fileContent;
                         }
-                        addListLexToDataTableView();
+                        fillTabsContent();
                     }
                 }
             }
@@ -45,39 +67,109 @@ private void button_openFile_Click(object sender, EventArgs e)
             }
             catch (Exception exception)
             {
-                MessageBox.Show(exception.Message, "Unexpected exception", MessageBoxButtons.OK);
-                throw;
+                MessageBox.Show(exception.Message, this.GetType().Name, MessageBoxButtons.OK);
+            }
+        }
+
+        private void button_ToggleTreeViewVisib_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                if (syntaxTreeIsExpanded)
+                {
+                    SyntaxTreeView?.CollapseAll();
+                }
+                else
+                {
+                    SyntaxTreeView?.ExpandAll();
+                }
+                syntaxTreeIsExpanded = !syntaxTreeIsExpanded;
+            }
+            catch (Exception exception)
+            {
+                MessageBox.Show(exception.Message, this.GetType().Name, MessageBoxButtons.OK);
+            }
+        }
+
+        private void button_ShowDeepestTreeView_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                GetDeeperLevel(SyntaxTreeView?.Nodes[0]);
+                list.Sort();
+            }
+            catch (Exception exception)
+            {
+                MessageBox.Show(exception.Message, this.GetType().Name, MessageBoxButtons.OK);
+            }
+        }
+
+        private void GetDeeperLevel(TreeNode node)
+        {
+            for (int i = 0; i < node.Nodes.Count; i++)
+            {
+                GetDeeperLevel(node.Nodes[i]);
+                list.Add(node.Nodes[i].Level);
             }
         }
 
         private void textBox_FilePath_KeyPress(object sender, KeyPressEventArgs e)
         {
             if (e.KeyChar == (Int32)(Keys.Enter))
             {
-                if (File.Exists(textBox_FilePath.Text))
+                try
                 {
-                    using (StreamReader reader = new StreamReader(textBox_FilePath.Text))
+                    if (File.Exists(textBox_FilePath.Text))
                     {
-                        string fileContent = reader.ReadToEnd();
-                        textBox_FileViewer.Text = fileContent;
+                        using (StreamReader reader = new StreamReader(textBox_FilePath.Text))
+                        {
+                            string fileContent = reader.ReadToEnd();
+                            textBox_FileViewer.Text = fileContent;
+                        }
+                        fillTabsContent();
                     }
-                    addListLexToDataTableView();
+                }
+                catch (Exception exception)
+                {
+                    MessageBox.Show(exception.Message, this.GetType().Name, MessageBoxButtons.OK);
+                    throw;
                 }
             }
         }
 
-        private void addListLexToDataTableView()
+        private void fillTabsContent()
         {
-            dataGridView_table.Rows.Clear();
-
-            // Transferring data to the method and then analyzing it
-            Analyzer lexicAnalyzer = new Analyzer();
-            List<Lex> lexicList = lexicAnalyzer.getLexemesList(textBox_FileViewer.Text);
+            Lexer lexicalAnalyzer = new Lexer();
+            Parser parser = new Parser();
 
+            // Fill in the table of lexemes
+            dataGridView_table?.Rows.Clear();
+            List<Lex> lexicList = lexicalAnalyzer.getLexemesList(textBox_FileViewer.Text);
+
             for (int i = 0; i < lexicList.Count; i++)
             {
-                dataGridView_table.Rows.Add(i, lexicList[i].lexemWord, lexicList[i].lexemType);
+                dataGridView_table.Rows.Add(i + 1, lexicList[i].word, lexicList[i].type);
+            }
+
+            // Build a syntax tree
+            parser.GenerateAbstractSyntaxTree(SyntaxTreeView, lexicList);
+        }
+
+        private void button_RegenerateTreeView_Click(object sender, EventArgs e)
+        {
+            if (File.Exists(textBox_FilePath.Text))
+            {
+                using (StreamReader reader = new StreamReader(textBox_FilePath.Text))
+                {
+                    string fileContent = reader.ReadToEnd();
+                    textBox_FileViewer.Text = fileContent;
+                }
+
+                fillTabsContent();
+                SyntaxTreeView?.ExpandAll();
+                syntaxTreeIsExpanded = true;
             }
+
         }
     }
 }

MainForm.resx

@@ -120,10 +120,10 @@
   <metadata name="Number.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
     <value>True</value>
   </metadata>
-  <metadata name="Type.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+  <metadata name="Value.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
     <value>True</value>
   </metadata>
-  <metadata name="Value.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+  <metadata name="Type.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
     <value>True</value>
   </metadata>
 </root>

Source/Lex.cs

@@ -1,21 +1,40 @@
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace LexicalAnalyzer.LexicalAnalyzer.Source
+namespace LexicalAnalyzer.LexicalAnalyzer.Source
 {
+    // TODO: Replace text type with enum?
+    // This may be more convenient than the current implementation.
+    // Address/search by type (.Semicolon, ,Variable) , but display static name in DataGridTable.
+
+
+
     public class Lex
     {
-        public readonly string lexemType;
-        public readonly string lexemWord;
-        
-        public Lex(string lexemType, string lexemWord)
+        public readonly Type type;
+        public readonly string word;
+
+        public enum Type
         {
-            this.lexemType = lexemType;
-            this.lexemWord = lexemWord;
+            Assign,                 // :=
+            Colon,                  // :
+            Comment_Open,           // {
+            Comment_Close,          // }
+            End,                    // .
+            Logical_AND,            // and
+            Logical_NOT,            // not
+            Logical_OR,             // or
+            Logical_XOR,            // xor
+            Parenthesis,            // ()
+            Semicolon,              // ;
+            Condition,              // true/false
+            Constant,               // const
+            Variable,               // variable
+            Null,                   // null-value
         }
+
+        public Lex(Type _lexemType, string _lexemWord)
+        {
+            this.type = _lexemType;
+            this.word = _lexemWord;
+        }
+
     }
 }