add ToLower and ToUpper method

MeilCli · Apr 16, 2017 · 4a0b127 · 4a0b127
1 parent d68d892
commit 4a0b127
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diff --git a/Source/Plugin.CrossFormattedText.Abstractions/FormattedString.cs b/Source/Plugin.CrossFormattedText.Abstractions/FormattedString.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Globalization;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -579,6 +580,46 @@ public FormattedString Subspan(int startIndex,int length) {
             return new FormattedString(nAr);
         }
 
+        public FormattedString ToLower() {
+            Span[] sAr = ToClonedSpanArray();
+
+            foreach(Span span in sAr) {
+                span.Text = span.Text.ToLower();
+            }
+
+            return new FormattedString(sAr);
+        }
+
+        public FormattedString ToLowerInvariant() {
+            Span[] sAr = ToClonedSpanArray();
+
+            foreach(Span span in sAr) {
+                span.Text = span.Text.ToLowerInvariant();
+            }
+
+            return new FormattedString(sAr);
+        }
+
+        public FormattedString ToUpper() {
+            Span[] sAr = ToClonedSpanArray();
+
+            foreach(Span span in sAr) {
+                span.Text = span.Text.ToUpper();
+            }
+
+            return new FormattedString(sAr);
+        }
+
+        public FormattedString ToUpperInvariant() {
+            Span[] sAr = ToClonedSpanArray();
+
+            foreach(Span span in sAr) {
+                span.Text = span.Text.ToUpperInvariant();
+            }
+
+            return new FormattedString(sAr);
+        }
+
         public bool AnySpanReferenceEquals(FormattedString formattedString) {
             foreach(var span1 in spans) {
                 foreach(var span2 in formattedString.spans) {

diff --git a/Test/Test.CrossFormattedText.Unit/FormattedStringTest.cs b/Test/Test.CrossFormattedText.Unit/FormattedStringTest.cs
@@ -231,5 +231,31 @@ public void SubspanText() {
             Assert.AreEqual(newText1.Text,text.Text.Substring(text[0].Text.Length));
             Assert.AreEqual(newText1.AnySpanReferenceEquals(text),false);
         }
+
+        [TestMethod]
+        public void ToLowerTest() {
+            var newText1 = text.ToLower();
+
+            Assert.AreEqual(newText1.Text,text.Text.ToLower());
+            Assert.AreEqual(newText1.AnySpanReferenceEquals(text),false);
+
+            var newText2 = text.ToLowerInvariant();
+
+            Assert.AreEqual(newText2.Text,text.Text.ToLowerInvariant());
+            Assert.AreEqual(newText2.AnySpanReferenceEquals(text),false);
+        }
+
+        [TestMethod]
+        public void ToUpperTest() {
+            var newText1 = text.ToUpper();
+
+            Assert.AreEqual(newText1.Text,text.Text.ToUpper());
+            Assert.AreEqual(newText1.AnySpanReferenceEquals(text),false);
+
+            var newText2 = text.ToUpperInvariant();
+
+            Assert.AreEqual(newText2.Text,text.Text.ToUpperInvariant());
+            Assert.AreEqual(newText2.AnySpanReferenceEquals(text),false);
+        }
     }
 }