search

chqu1012 / Language-Editor

This editor is for specifing the color of the keyword and the autocompletion of the editor. So each user can use one file to colorize his code at there own.
0 stars 0 forks source link

Includes code formatter #2

Open chqu1012 opened 7 years ago

chqu1012 commented 7 years ago
chqu1012 commented 7 years ago

Java Code Formatter Example: import java.util.Properties;

import org.eclipse.jdt.core.JavaCore; import org.eclipse.jdt.core.ToolFactory; import org.eclipse.jdt.core.formatter.CodeFormatter; import org.eclipse.jdt.internal.compiler.impl.CompilerOptions; import org.eclipse.jface.text.BadLocationException; import org.eclipse.jface.text.Document; import org.eclipse.jface.text.IDocument; import org.eclipse.text.edits.TextEdit;

public class MainFormatter {

public static void main(String[] args) { String result;

String javaCode = "public class MyClass{ "
                    + "public static void main(String[] args) { "
                    + "System.out.println(\"Hello World\");"
                    + " }"
                    + " }";

Properties prefs = new Properties();
prefs.setProperty(JavaCore.COMPILER_SOURCE, CompilerOptions.VERSION_1_8);
prefs.setProperty(JavaCore.COMPILER_COMPLIANCE, CompilerOptions.VERSION_1_8);
prefs.setProperty(JavaCore.COMPILER_CODEGEN_TARGET_PLATFORM, CompilerOptions.VERSION_1_8);

CodeFormatter codeFormatter = ToolFactory.createCodeFormatter(prefs);
IDocument doc = new Document(javaCode);
try {
  TextEdit edit = codeFormatter.format(CodeFormatter.K_COMPILATION_UNIT | CodeFormatter.F_INCLUDE_COMMENTS,
                                         javaCode, 0, javaCode.length(), 0, null);
  if (edit != null) {
    edit.apply(doc);
    result = doc.get();
  }
  else {
    result = javaCode;
  }
}
catch (BadLocationException e) {
  throw new RuntimeException(e);
}

System.out.println(result);

} }

Source: http://jmini.github.io/blog/2017/2017-01-10_use-eclipse-jdt-in-java-app.html