Merge pull request #10 from sgreben/named-capture-groups

Support named capture groups

README.md

@@ -24,7 +24,7 @@ There's a [discussion](https://www.reddit.com/r/java/comments/4tyk90/github_sgre
 <dependency>
   <groupId>com.github.sgreben</groupId>
   <artifactId>regex-builder</artifactId>
-  <version>1.1.0</version>
+  <version>1.2.0</version>
 </dependency>
 ```
 

pom.xml

@@ -4,7 +4,7 @@
   <groupId>com.github.sgreben</groupId>
   <artifactId>regex-builder</artifactId>
   <packaging>jar</packaging>
-  <version>1.1.0</version>
+  <version>1.2.0</version>
   <name>${project.groupId}:${project.artifactId}</name>
   <description>Construct regular expressions as pure Java code.</description>
   <url>https://github.com/sgreben/regex-builder/</url>

src/main/java/com/github/sgreben/regex_builder/CaptureGroup.java

@@ -3,20 +3,32 @@
 import com.github.sgreben.regex_builder.expression.Unary;
 import com.github.sgreben.regex_builder.tokens.END_GROUP;
 import com.github.sgreben.regex_builder.tokens.START_GROUP;
+import com.github.sgreben.regex_builder.tokens.START_GROUP_NAMED;
 import com.github.sgreben.regex_builder.tokens.TOKEN;
 
 /**
  * A regex capture group "(...)"
  */
 public class CaptureGroup extends Unary {
+    private final String name;
 
     public CaptureGroup(Expression expression) {
         super(expression);
+        name = null;
+    }
+
+    public CaptureGroup(Expression expression, String name) {
+        super(expression);
+        this.name = name;
     }
 
     @Override
     public void compile(CaptureGroupIndex index, java.util.List<TOKEN> output) {
-        output.add(new START_GROUP());
+        if (name != null) {
+            output.add(new START_GROUP_NAMED(name));
+        } else {
+            output.add(new START_GROUP());
+        }
         for (Expression child : children()) {
             child.compile(index, output);
         }

src/main/java/com/github/sgreben/regex_builder/FluentRe.java

@@ -86,6 +86,10 @@ public CaptureGroup capture() {
         return Re.capture(expression);
     }
 
+    public CaptureGroup captureNamed(String name) {
+        return Re.captureNamed(name, expression);
+    }
+
     public FluentRe separatedBy1(FluentRe e) {
         return new FluentRe(Re.separatedBy1(e.expression, expression));
     }
@@ -193,4 +197,8 @@ public FluentRe optional() {
     public Pattern compile() {
         return Pattern.compile(expression);
     }
-}
+
+    public Pattern compile(int flags) {
+        return Pattern.compile(expression, flags);
+    }
+}