[MSITE-1000] Introduce parser configuration parameter

src/main/java/org/apache/maven/plugins/site/render/AbstractSiteRenderingMojo.java

@@ -94,6 +94,12 @@ public abstract class AbstractSiteRenderingMojo extends AbstractSiteDescriptorMo
     @Parameter
     private Map<String, Object> attributes;
 
+    /**
+     * Parser configurations (per document file paths).
+     * @since 4.0.0
+     */
+    @Parameter
+    private List<ParserConfiguration> parserConfigurations;
     /**
      * Site renderer.
      */

src/main/java/org/apache/maven/plugins/site/render/ParserConfiguration.java

@@ -0,0 +1,55 @@
+package org.apache.maven.plugins.site.render;
+
+import java.util.LinkedList;
+import java.util.List;
+
+import org.apache.maven.doxia.parser.Parser;
+import org.apache.maven.shared.utils.io.MatchPattern;
+import org.apache.maven.shared.utils.io.MatchPatterns;
+
+public class ParserConfiguration {
+
+    /**
+     * List of {@link MatchPattern} strings. If not set this configurations applies to all documents.
+     */
+    private final List<String> patterns;
+    /**
+     * @see {@link Parser#setEmitComments(boolean)}
+     */
+    private boolean emitComments;
+    /**
+     * @see {@link Parser#setEmitAnchorsForIndexableEntries(boolean)}
+     */
+    private boolean emitAnchorsForIndexableEntries;
+
+    public ParserConfiguration() {
+        patterns = new LinkedList<>();
+    }
+    public boolean isEmitComments() {
+        return emitComments;
+    }
+
+    public void setEmitComments(boolean emitComments) {
+        this.emitComments = emitComments;
+    }
+
+    public boolean isEmitAnchorsForIndexableEntries() {
+        return emitAnchorsForIndexableEntries;
+    }
+
+    public void setEmitAnchorsForIndexableEntries(boolean emitAnchorsForIndexableEntries) {
+        this.emitAnchorsForIndexableEntries = emitAnchorsForIndexableEntries;
+    }
+
+    public void addPattern(String pattern ) {
+        patterns.add(pattern);
+    }
+
+    public MatchPatterns getPatterns() {
+        if (patterns.isEmpty()) {
+            return MatchPatterns.from("**");
+        }
+        return MatchPatterns.from(patterns.toArray(new String[0]));
+    }
+
+}