Fixed appending eof character #123

Author: FlorianRappl

CHANGELOG.md

@@ -4,6 +4,7 @@ Released on tbd.
 
 - Updated to use AngleSharp 1.0
 - Fixed issue when updating shorthands with invalid values (#129)
+- Fixed issue with appended EOF character in `CssText` (#123)
 
 # 0.17.0
 

src/AngleSharp.Css.Tests/Library/StringRepresentation.cs

@@ -106,6 +106,40 @@ public void EscapePropertyNames_UnknownDeclaration_Issue120()
             Assert.AreEqual(css, generatedCss);
         }
 
+        [Test]
+        public void CssTextShouldNotAddReplacementCharacter_Issue123()
+        {
+            var html = @"<span style=""background-image: var(--urlSpellingErrorV2,url(&quot;https://www.example.com/))"">Ipsum</span>";
+            var dom = html.ToHtmlDocument(Configuration.Default.WithCss(new CssParserOptions
+            {
+                IsIncludingUnknownDeclarations = true,
+                IsIncludingUnknownRules = true,
+                IsToleratingInvalidSelectors = true,
+            }));
+            var div = dom.Body?.FirstElementChild;
+            var style = div.GetStyle();
+            var css = style.ToCss();
+
+            Assert.AreEqual("background-image: var(--urlSpellingErrorV2,url(\"https://www.example.com/))", css);
+        }
+
+        [Test]
+        public void CssTextShouldNotTrailingSemicolonCharacter_Issue123()
+        {
+            var html = @"<span style=""color: red;"">Ipsum</span>";
+            var dom = html.ToHtmlDocument(Configuration.Default.WithCss(new CssParserOptions
+            {
+                IsIncludingUnknownDeclarations = true,
+                IsIncludingUnknownRules = true,
+                IsToleratingInvalidSelectors = true,
+            }));
+            var div = dom.Body?.FirstElementChild;
+            var style = div.GetStyle();
+            var css = style.ToCss();
+
+            Assert.AreEqual("color: rgba(255, 0, 0, 1)", css);
+        }
+
         [Test]
         public void BorderWithEmptyPx_Issue129()
         {

src/AngleSharp.Css/Parser/CssTokenizer.cs

@@ -70,6 +70,11 @@ public String ContentFrom(Int32 position)
             {
                 var token = Data(current);
 
+                if (Current is Symbols.EndOfFile)
+                {
+                    Back();
+                }
+
                 if (token.Type == CssTokenType.Whitespace)
                 {
                     spaced++;