IDEA-199839 Support deprecation in xsd schemas

detecting with regexp

xml/tests/testData/xml/deprecated.xsd

@@ -2,10 +2,10 @@
     <element name="root">
         <complexType>
             <sequence>
-                <!-- deprecated -->
+                <!-- deprecated element -->
                 <element name="deprecated"/>
             </sequence>
-            <!-- deprecated -->
+            <!-- DEPRECATED attribute -->
             <attribute name="deprecated"/>
         </complexType>
     </element>

xml/xml-analysis-impl/src/com/intellij/codeInsight/daemon/impl/analysis/OptionsPanel.form

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<form xmlns="http://www.intellij.com/uidesigner/form/" version="1" bind-to-class="com.intellij.codeInsight.daemon.impl.analysis.XmlDeprecatedElementInspection.OptionsPanel">
+  <grid id="27dc6" binding="myPanel" layout-manager="GridLayoutManager" row-count="2" column-count="2" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+    <margin top="0" left="0" bottom="0" right="0"/>
+    <constraints>
+      <xy x="20" y="20" width="500" height="48"/>
+    </constraints>
+    <properties/>
+    <border type="none"/>
+    <children>
+      <component id="f9b6b" class="javax.swing.JTextField" binding="myTextField">
+        <constraints>
+          <grid row="0" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false">
+            <preferred-size width="150" height="-1"/>
+          </grid>
+        </constraints>
+        <properties/>
+      </component>
+      <vspacer id="6d333">
+        <constraints>
+          <grid row="1" column="1" row-span="1" col-span="1" vsize-policy="6" hsize-policy="1" anchor="0" fill="2" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </vspacer>
+      <component id="45cd5" class="javax.swing.JLabel">
+        <constraints>
+          <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <text value="Regexp:"/>
+        </properties>
+      </component>
+    </children>
+  </grid>
+</form>

xml/xml-analysis-impl/src/com/intellij/codeInsight/daemon/impl/analysis/XmlDeprecatedElementInspection.java

@@ -14,19 +14,26 @@ import com.intellij.psi.xml.XmlAttribute;
 import com.intellij.psi.xml.XmlChildRole;
 import com.intellij.psi.xml.XmlTag;
 import com.intellij.xml.util.XmlUtil;
+import org.intellij.lang.annotations.Language;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
-import java.util.Locale;
+import javax.swing.*;
+import java.util.regex.Pattern;
 
 public class XmlDeprecatedElementInspection extends XmlSuppressableInspectionTool {
+
+  @Language("RegExp")
+  public String regexp = "(?i)deprecated.*";
+
   @NotNull
   @Override
   public PsiElementVisitor buildVisitor(@NotNull ProblemsHolder holder, boolean isOnTheFly) {
+    Pattern pattern = Pattern.compile(regexp);
     return new XmlElementVisitor() {
       @Override
       public void visitXmlTag(XmlTag tag) {
-        if (checkDeprecated(tag.getDescriptor())) {
+        if (checkDeprecated(tag.getDescriptor(), pattern)) {
           ASTNode nameNode = XmlChildRole.START_TAG_NAME_FINDER.findChild(tag.getNode());
           if (nameNode != null) {
             holder.registerProblem(nameNode.getPsi(), "The tag is marked as deprecated", ProblemHighlightType.LIKE_DEPRECATED);
@@ -36,19 +43,36 @@ public class XmlDeprecatedElementInspection extends XmlSuppressableInspectionToo
 
       @Override
       public void visitXmlAttribute(XmlAttribute attribute) {
-        if (checkDeprecated(attribute.getDescriptor())) {
+        if (checkDeprecated(attribute.getDescriptor(), pattern)) {
           holder.registerProblem(attribute.getNameElement(), "The attribute is marked as deprecated", ProblemHighlightType.LIKE_DEPRECATED);
         }
       }
     };
   }
 
-  private static boolean checkDeprecated(@Nullable PsiMetaData metaData) {
+  @Nullable
+  @Override
+  public JComponent createOptionsPanel() {
+    return new OptionsPanel(this).myPanel;
+  }
+
+  private static boolean checkDeprecated(@Nullable PsiMetaData metaData, Pattern pattern) {
     if (metaData == null) return false;
     PsiElement declaration = metaData.getDeclaration();
     if (declaration == null) return false;
     PsiElement comment = XmlUtil.findPreviousComment(declaration);
     if (comment == null) return false;
-    return StringUtil.trimStart(comment.getText(), "<!--").toLowerCase(Locale.ENGLISH).trim().startsWith("deprecated");
+    String s = StringUtil.trimStart(comment.getText(), "<!--").trim();
+    return pattern.matcher(s).matches();
+  }
+
+  public static class OptionsPanel {
+    private JTextField myTextField;
+    private JPanel myPanel;
+
+    public OptionsPanel(XmlDeprecatedElementInspection inspection) {
+      myTextField.setText(inspection.regexp);
+      myTextField.addActionListener(e -> inspection.regexp = myTextField.getText());
+    }
   }
 }