JSON built-in highlighter added.

Author: PavelTorgashov

Diff for: Binary/FastColoredTextBox.dll

@@ -75,6 +75,10 @@ public class SyntaxHighlighter : IDisposable
         protected Regex JScriptNumberRegex;
         protected Regex JScriptStringRegex;
 
+        protected Regex JSONKeywordRegex;
+        protected Regex JSONNumberRegex;
+        protected Regex JSONStringRegex;
+
         protected Regex LuaCommentRegex1,
                       LuaCommentRegex2,
                       LuaCommentRegex3;
@@ -172,6 +176,9 @@ public virtual void HighlightSyntax(Language language, Range range)
                 case Language.Lua:
                     LuaSyntaxHighlight(range);
                     break;
+                case Language.JSON:
+                    JSONSyntaxHighlight(range);
+                    break;
                 default:
                     break;
             }
@@ -681,6 +688,11 @@ public void InitStyleSchema(Language lang)
                     VariableStyle = MaroonStyle;
                     TypesStyle = BrownStyle;
                     break;
+                case Language.JSON:
+                    StringStyle = BrownStyle;
+                    NumberStyle = MagentaStyle;
+                    KeywordStyle = BlueStyle;
+                    break;
             }
         }
 
@@ -1289,6 +1301,48 @@ protected void LuaAutoIndentNeeded(object sender, AutoIndentEventArgs args)
             }
         }
 
+        protected void InitJSONRegex()
+        {
+            JSONStringRegex = new Regex(@"""([^\\""]|\\"")*""", RegexCompiledOption);
+            JSONNumberRegex = new Regex(@"\b(\d+[\.]?\d*|true|false|null)\b", RegexCompiledOption);
+            JSONKeywordRegex = new Regex(@"(?<range>""([^\\""]|\\"")*"")\s*:", RegexCompiledOption);
+        }
+
+        /// <summary>
+        /// Highlights JSON code
+        /// </summary>
+        /// <param name="range"></param>
+        public virtual void JSONSyntaxHighlight(Range range)
+        {
+            range.tb.LeftBracket = '[';
+            range.tb.RightBracket = ']';
+            range.tb.LeftBracket2 = '{';
+            range.tb.RightBracket2 = '}';
+            range.tb.BracketsHighlightStrategy = BracketsHighlightStrategy.Strategy2;
+
+            range.tb.AutoIndentCharsPatterns
+                = @"
+^\s*[\w\.]+(\s\w+)?\s*(?<range>=)\s*(?<range>[^;]+);
+";
+
+            //clear style of changed range
+            range.ClearStyle(StringStyle, NumberStyle, KeywordStyle);
+            //
+            if (JSONStringRegex == null)
+                InitJSONRegex();
+            //keyword highlighting
+            range.SetStyle(KeywordStyle, JSONKeywordRegex);
+            //string highlighting
+            range.SetStyle(StringStyle, JSONStringRegex);
+            //number highlighting
+            range.SetStyle(NumberStyle, JSONNumberRegex);
+            //clear folding markers
+            range.ClearFoldingMarkers();
+            //set folding markers
+            range.SetFoldingMarkers("{", "}"); //allow to collapse brackets block
+            range.SetFoldingMarkers(@"\[", @"\]"); //allow to collapse comment block
+        }
+
         #region Styles
 
         /// <summary>
@@ -1422,6 +1476,7 @@ public enum Language
         SQL,
         PHP,
         JS,
-        Lua
+        Lua,
+        JSON
     }
 }

Diff for: Binary/FastColoredTextBox.xml

@@ -140,6 +140,7 @@ private void miCSharp_Click(object sender, EventArgs e)
                 case "PHP": fctb.Language = Language.PHP; break;
                 case "JS": fctb.Language = Language.JS; break;
                 case "Lua": fctb.Language = Language.Lua; break;
+                case "JSON": fctb.Language = Language.JSON; break;
             }
             fctb.OnSyntaxHighlight(new TextChangedEventArgs(fctb.Range));
             miChangeColors.Enabled = lang != "CSharp (custom highlighter)";

Diff for: Binary/Tester.exe

@@ -18,28 +18,32 @@ public Sandbox()
 
         private void button1_Click(object sender, EventArgs e)
         {
-            var ranges = fctb.Range.GetRanges(@"(?<=\[).*?(?=\])");
+            var r = new Range(fctb, 2);
+            fctb.SelectedText = "new line value";
+        }
+
+        private ColorStyle colorStyle = new ColorStyle(Brushes.Black, Brushes.White, FontStyle.Regular);
+
+        private void fctb_TextChanged(object sender, TextChangedEventArgs e)
+        {
+            e.ChangedRange.SetStyle(colorStyle, @"Color\.\w+");
+        }
+    }
 
-            foreach (var range in ranges)
-            {
-                if(fctb.Selection.Length > 0)
-                {
-                    //heck diapason
-                    if(range.GetIntersectionWith(fctb.Selection).Length > 0)
-                    {
-                        fctb.Selection = range;
-                        //...
-                        break;
-                    }
-                }else
-                //check caret
-                if (range.Contains(fctb.Selection.Start))
-                {
-                    fctb.Selection = range;
-                    //....
-                    break;
-                }
-            }
+    class ColorStyle : TextStyle
+    {
+        public ColorStyle(Brush foreBrush, Brush backgroundBrush, FontStyle fontStyle) : base(foreBrush, backgroundBrush, fontStyle)
+        {
+        }
+
+        public override void Draw(Graphics gr, Point position, Range range)
+        {
+            //get color name
+            var parts = range.Text.Split('.');
+            var colorName = parts[parts.Length - 1];
+            var color = Color.FromName(colorName);
+            (BackgroundBrush as SolidBrush).Color = color;
+            base.Draw(gr, position, range);
         }
     }
 

Diff for: FastColoredTextBox/SyntaxHighlighter.cs

@@ -119,7 +119,7 @@
   </resheader>
   <data name="fctb.ServiceColors" mimetype="application/x-microsoft.net.object.binary.base64">
     <value>
-        AAEAAAD/////AQAAAAAAAAAMAgAAAFdGYXN0Q29sb3JlZFRleHRCb3gsIFZlcnNpb249Mi4xNi4yNC4w
+        AAEAAAD/////AQAAAAAAAAAMAgAAAFdGYXN0Q29sb3JlZFRleHRCb3gsIFZlcnNpb249Mi4xNi4yNi4w
         LCBDdWx0dXJlPW5ldXRyYWwsIFB1YmxpY0tleVRva2VuPWZiOGFhMTJiOTk0ZWY2MWIMAwAAAFFTeXN0
         ZW0uRHJhd2luZywgVmVyc2lvbj0yLjAuMC4wLCBDdWx0dXJlPW5ldXRyYWwsIFB1YmxpY0tleVRva2Vu
         PWIwM2Y1ZjdmMTFkNTBhM2EFAQAAACJGYXN0Q29sb3JlZFRleHRCb3hOUy5TZXJ2aWNlQ29sb3JzBgAA