Make lower/upper casing locale independent

DEVSIX-9092

Autoported commit.
Original commit hash: [b64bc3470]

Author: vitali-pr

itext.tests/itext.html2pdf.tests/itext/html2pdf/element/InputTest.cs

@@ -23,6 +23,7 @@ You should have received a copy of the GNU Affero General Public License
 using System;
 using System.Collections.Generic;
 using System.IO;
+using iText.Commons.Utils;
 using iText.Forms.Form.Element;
 using iText.Forms.Logs;
 using iText.Html2pdf;
@@ -352,9 +353,9 @@ private void RunPDFATest(String name) {
 
         private class CustomTextInputTagWorkerFactory : DefaultTagWorkerFactory {
             public override ITagWorker GetCustomTagWorker(IElementNode tag, ProcessorContext context) {
-                switch (tag.Name().ToLowerInvariant()) {
+                switch (StringNormalizer.ToLowerCase(tag.Name())) {
                     case "input": {
-                        switch (tag.GetAttribute("type").ToLowerInvariant()) {
+                        switch (StringNormalizer.ToLowerCase(tag.GetAttribute("type"))) {
                             case "text": {
                                 IDictionary<String, String> map = new Dictionary<String, String>();
                                 map.Put("page-break-inside", "avoid");

itext/itext.html2pdf/itext/html2pdf/attach/impl/tags/HTagWorker.cs

@@ -21,6 +21,7 @@ You should have received a copy of the GNU Affero General Public License
 along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 using System;
+using iText.Commons.Utils;
 using iText.Html2pdf.Attach;
 using iText.Layout;
 using iText.Layout.Tagging;
@@ -44,7 +45,7 @@ public class HTagWorker : DivTagWorker {
         /// <param name="context">the context</param>
         public HTagWorker(IElementNode element, ProcessorContext context)
             : base(element, context) {
-            this.role = element.Name().ToUpperInvariant();
+            this.role = StringNormalizer.ToUpperCase(element.Name());
         }
 
         public override void ProcessEnd(IElementNode element, ProcessorContext context) {

itext/itext.html2pdf/itext/html2pdf/attach/impl/tags/MetaTagWorker.cs

@@ -21,6 +21,7 @@ You should have received a copy of the GNU Affero General Public License
 along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 using System;
+using iText.Commons.Utils;
 using iText.Html2pdf.Attach;
 using iText.Html2pdf.Html;
 using iText.Kernel.Pdf;
@@ -51,7 +52,7 @@ public virtual void ProcessEnd(IElementNode element, ProcessorContext context) {
             // Note that charset and http-equiv attributes are processed on DataUtil#parseByteData(ByteBuffer, String, String, Parser) level.
             String name = element.GetAttribute(AttributeConstants.NAME);
             if (null != name) {
-                name = name.ToLowerInvariant();
+                name = StringNormalizer.ToLowerCase(name);
                 String content = element.GetAttribute(AttributeConstants.CONTENT);
                 // although iText do not visit head during processing html to elements
                 // meta tag can by accident be presented in body section and that shouldn't cause NPE

itext/itext.html2pdf/itext/html2pdf/attach/util/WaitingInlineElementsHelper.cs

@@ -66,6 +66,7 @@ public WaitingInlineElementsHelper(String whiteSpace, String textTransform) {
         /// <param name="text">the text</param>
         public virtual void Add(String text) {
             text = WhiteSpaceUtil.ProcessWhitespaces(text, keepLineBreaks, collapseSpaces);
+            // Here we intentionally use locale dependent toLowerCase/toUpperCase
             if (CssConstants.UPPERCASE.Equals(textTransform)) {
                 text = text.ToUpperInvariant();
             }

itext/itext.html2pdf/itext/html2pdf/css/apply/util/TransformationApplierUtil.cs

@@ -22,6 +22,7 @@ You should have received a copy of the GNU Affero General Public License
 */
 using System;
 using System.Collections.Generic;
+using iText.Commons.Utils;
 using iText.Html2pdf.Attach;
 using iText.Html2pdf.Css;
 using iText.IO.Util;
@@ -48,7 +49,7 @@ public static void ApplyTransformation(IDictionary<String, String> cssProps, Pro
              element) {
             String transformationFunction;
             if (cssProps.Get(CssConstants.TRANSFORM) != null) {
-                transformationFunction = cssProps.Get(CssConstants.TRANSFORM).ToLowerInvariant();
+                transformationFunction = StringNormalizer.ToLowerCase(cssProps.Get(CssConstants.TRANSFORM));
             }
             else {
                 return;

itext/itext.html2pdf/itext/html2pdf/html/HtmlUtils.cs

@@ -21,6 +21,7 @@ You should have received a copy of the GNU Affero General Public License
 along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 using System;
+using iText.Commons.Utils;
 using iText.Html2pdf.Css;
 using iText.Html2pdf.Css.Resolve.Func.Counter;
 using iText.Kernel.Numbering;
@@ -163,7 +164,7 @@ public static String GetAllNumberGlyphsForStyle(CounterDigitsGlyphStyle glyphSty
                 }
 
                 case CounterDigitsGlyphStyle.UPPER_ALPHA_AND_LATIN: {
-                    return LATIN_NUMERALS.ToUpperInvariant();
+                    return StringNormalizer.ToUpperCase(LATIN_NUMERALS);
                 }
 
                 case CounterDigitsGlyphStyle.LOWER_ALPHA_AND_LATIN: {
@@ -179,7 +180,7 @@ public static String GetAllNumberGlyphsForStyle(CounterDigitsGlyphStyle glyphSty
                 }
 
                 case CounterDigitsGlyphStyle.UPPER_ROMAN: {
-                    return ROMAN_NUMERALS.ToUpperInvariant();
+                    return StringNormalizer.ToUpperCase(ROMAN_NUMERALS);
                 }
 
                 case CounterDigitsGlyphStyle.GEORGIAN: {

port-hash

@@ -1 +1 @@
-a9e085a9269baebf4c48a4bd957eb67c44f324b9
+b64bc3470577d3f81c78f8518841f473bb5e4f30