Add some name conversions to CName

airframe-surface/shared/src/main/scala/wvlet/airframe/surface/CName.scala

@@ -66,8 +66,6 @@ object CName {
       varName
     } else {
       def translate(varName: String) = {
-        //var components = Array[String]()
-
         def wikiNameComponents: List[String] = {
           findWikiNameComponent(0)
         }
@@ -142,4 +140,38 @@ class CName(val canonicalName: String, val naturalName: String) extends Comparab
     }
   }
 
+  lazy val snakeCase: String = naturalName.toLowerCase.replace(' ', '_')
+  lazy val dashCase: String = naturalName.toLowerCase.replace(' ', '-')
+  lazy val upperCamelCase: String = {
+    val sb = new StringBuilder()
+    var prevIsWhitespace = false
+    naturalName.toLowerCase.map { c =>
+      if (c != ' ') {
+        if (sb.length == 0 || prevIsWhitespace) {
+          sb.append(c.toUpper)
+        } else {
+          sb.append(c)
+        }
+      }
+      prevIsWhitespace = (c == ' ')
+    }
+    sb.toString
+  }
+
+  lazy val lowerCamelCase: String = {
+    val sb = new StringBuilder()
+    var prevIsWhitespace = false
+    naturalName.toLowerCase.map { c =>
+      if (c != ' ') {
+        if (prevIsWhitespace) {
+          sb.append(c.toUpper)
+        } else {
+          sb.append(c)
+        }
+      }
+      prevIsWhitespace = (c == ' ')
+    }
+    sb.toString
+  }
+
 }

airframe-surface/shared/src/test/scala/wvlet/airframe/surface/CNameTest.scala

@@ -0,0 +1,53 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package wvlet.airframe.surface
+
+import wvlet.airframe.AirframeSpec
+
+class CNameTest extends AirframeSpec {
+
+  "CName" should {
+    "convert to snakeCase" in {
+      assert(CName("AirframeSurface").snakeCase  == "airframe_surface")
+      assert(CName("airframe_surface").snakeCase == "airframe_surface")
+      assert(CName("airframe-surface").snakeCase == "airframe_surface")
+      assert(CName("airframeSurface").snakeCase  == "airframe_surface")
+      assert(CName("Airframe Surface").snakeCase == "airframe_surface")
+    }
+
+    "convert to dashCase" in {
+      assert(CName("AirframeSurface").dashCase  == "airframe-surface")
+      assert(CName("airframe_surface").dashCase == "airframe-surface")
+      assert(CName("airframe-surface").dashCase == "airframe-surface")
+      assert(CName("airframeSurface").dashCase  == "airframe-surface")
+      assert(CName("Airframe Surface").dashCase == "airframe-surface")
+    }
+
+    "convert to .upperCamelCase" in {
+      assert(CName("AirframeSurface").upperCamelCase  == "AirframeSurface")
+      assert(CName("airframe_surface").upperCamelCase == "AirframeSurface")
+      assert(CName("airframe-surface").upperCamelCase == "AirframeSurface")
+      assert(CName("airframeSurface").upperCamelCase  == "AirframeSurface")
+      assert(CName("Airframe Surface").upperCamelCase == "AirframeSurface")
+    }
+
+    "convert to lowerCamelCase" in {
+      assert(CName("AirframeSurface").lowerCamelCase  == "airframeSurface")
+      assert(CName("airframe_surface").lowerCamelCase == "airframeSurface")
+      assert(CName("airframe-surface").lowerCamelCase == "airframeSurface")
+      assert(CName("airframeSurface").lowerCamelCase  == "airframeSurface")
+      assert(CName("Airframe Surface").lowerCamelCase == "airframeSurface")
+    }
+  }
+}