linearization in the Java binding

src/runtime/java/Test.java

@@ -20,8 +20,10 @@ public class Test {
 			System.out.println(entry.getKey()+" "+entry.getValue()+" "+entry.getValue().getName());
 		}
 		
-		for (ExprProb ep : gr.getLanguages().get("ParseEng").parse("Phr", "test")) {
+		Concr eng = gr.getLanguages().get("ParseEng");
+		for (ExprProb ep : eng.parse("Phr", "where are you")) {
 			System.out.println("["+ep.getProb()+"] "+ep.getExpr());
+			System.out.println(eng.linearize(ep.getExpr()));
 		}
 	}
 }

src/runtime/java/jpgf.c

@@ -244,6 +244,28 @@ Java_org_grammaticalframework_pgf_ExprIterator_fetchExprProb
 	return jexpprob;
 }
 
+JNIEXPORT jstring JNICALL
+Java_org_grammaticalframework_pgf_Concr_linearize(JNIEnv* env, jobject self, jobject jexpr)
+{
+	GuPool* tmp_pool = gu_local_pool();
+	GuExn* err = gu_new_exn(NULL, gu_kind(type), tmp_pool);
+	GuStringBuf* sbuf = gu_string_buf(tmp_pool);
+	GuWriter* wtr = gu_string_buf_writer(sbuf);
+	
+	pgf_linearize(get_ref(env, self), gu_variant_from_ptr((void*) get_ref(env, jexpr)), wtr, err);
+	if (!gu_ok(err)) {
+		//
+		return NULL;
+	}
+
+	GuString str = gu_string_buf_freeze(sbuf, tmp_pool);
+	jstring jstr = gu2j_string(env, str);
+
+	gu_pool_free(tmp_pool);
+	
+	return jstr;
+}
+
 JNIEXPORT void JNICALL 
 Java_org_grammaticalframework_pgf_Pool_free(JNIEnv* env, jobject self, jlong ref)
 {

src/runtime/java/org/grammaticalframework/pgf/Concr.java

@@ -10,6 +10,8 @@ public class Concr {
 		return new Parser(this, startCat, s);
 	}
 	
+	public native String linearize(Expr expr);
+
 	//////////////////////////////////////////////////////////////////
 	// private stuff