File Encoding Macro (useful for external encoding converters, like iconv)

platform/lang-impl/src/com/intellij/ide/macro/FileEncodingMacro.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2000-2012 JetBrains s.r.o.
+ *
+ * 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 com.intellij.ide.macro;
+
+import com.intellij.ide.IdeBundle;
+import com.intellij.openapi.actionSystem.DataContext;
+import com.intellij.openapi.actionSystem.PlatformDataKeys;
+import com.intellij.openapi.vfs.VirtualFile;
+
+public final class FileEncodingMacro extends Macro {
+  public String getName() {
+    return "FileEncoding";
+  }
+
+  public String getDescription() {
+    return IdeBundle.message("macro.file.encoding");
+  }
+
+  public String expand(DataContext dataContext) {
+    VirtualFile file = PlatformDataKeys.VIRTUAL_FILE.getData(dataContext);
+    if (file == null) return null;
+    return file.getCharset().displayName();
+  }
+}

platform/lang-impl/src/com/intellij/ide/macro/MacroManager.java

@@ -51,6 +51,7 @@ public final class MacroManager {
     registerMacro(new FileNameMacro());
     registerMacro(new FileNameWithoutExtension());
     registerMacro(new FilePathMacro());
+    registerMacro(new FileEncodingMacro());
     registerMacro(new FileDirRelativeToProjectRootMacro());
     registerMacro(new FilePathRelativeToProjectRootMacro());
     registerMacro(new FileDirRelativeToSourcepathMacro());

platform/platform-impl/src/com/intellij/application/options/PathMacrosImpl.java

@@ -104,6 +104,7 @@ public class PathMacrosImpl extends PathMacros implements ApplicationComponent,
     "/FileRelativeDir",
     "FileRelativePath",
     "/FileRelativePath",
+    "FileEncoding",
     "JavaDocPath",
     "JDKPath",
     "LineNumber",

platform/platform-resources-en/src/messages/IdeBundle.properties

@@ -449,6 +449,7 @@ macro.file.directory.relative=File directory relative to the project file
 macro.file.directory.relative.fwd.slash=File directory relative to the project file (with forward slashes)
 macro.file.path.relative=File path relative to the project file
 macro.file.path.relative.fwd.slash=File path relative to the project file (with forward slashes)
+macro.file.encoding=File encoding
 macro.javadoc.output.directory=JavaDoc output directory
 macro.jdk.path=JDK path
 macro.line.number=Line number