Trim Trailing Whitespace from Split Attributes

fixes #288

src/formatting/formatters/v2-xml-formatter.ts

@@ -163,6 +163,10 @@ export class V2XmlFormatter implements XmlFormatter {
                     && ((options.splitXmlnsOnFormat
                         && xml.substr(i, 5).toLowerCase() === "xmlns")
                         || options.splitAttributesOnFormat)) {
+
+                    // trim the end of output here to ensure there is no trailing whitespace (issue #288)
+                    output = this._removeTrailingNonBreakingWhitespace(output);
+
                     output += `${options.newLine}${this._getIndent(options, indentLevel)}`;
                 }
 

src/test/test-data/issue-189.formatted.xml

@@ -1,5 +1,5 @@
 <!DOCTYPE xml>
-<core:FragmentDefinition xmlns="sap.m" 
+<core:FragmentDefinition xmlns="sap.m"
     xmlns:core="sap.ui.core">
     <Text text="{parts: ['i18n>dialog.countdown.text','view>/Countdown'],formatter: 'jQuery.sap.formatMessage'}" />
 </core:FragmentDefinition>

src/test/test-data/issue-257.formatted.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<xsl:stylesheet version="2.0" 
+<xsl:stylesheet version="2.0"
     xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
     <xsl:output method="xml" encoding="UTF-8" indent="yes" />