Java String Sanitize sanitizeIdentifierName(String input)

Description

Escapes illegal characters in given identifier.

License

Open Source License

Declaration

public static String sanitizeIdentifierName(String input) 

Method Source Code

//package com.java2s;
/**//ww  w.java  2 s . c  o  m
 * Copyright (c) 2016 NumberFour AG.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   NumberFour AG - Initial API and implementation
 */

public class Main {
    /**
     * Escapes illegal characters in given identifier. Used for function names, etc.
     */
    public static String sanitizeIdentifierName(String input) {
        if (input == null || input.isEmpty()) {
            return input;
        }
        final StringBuilder result = new StringBuilder();
        char ch = input.charAt(0);
        if (Character.isJavaIdentifierStart(ch)) {
            result.append(ch);
        } else {
            result.append("_" + Character.codePointAt(input, 0) + "$");
        }
        int i = 1;
        while (i < input.length()) {
            ch = input.charAt(i);
            if (Character.isJavaIdentifierPart(ch)) {
                result.append(ch);
            } else {
                result.append("_" + Character.codePointAt(input, i) + "$");
            }
            i = i + 1;
        }
        return result.toString();
    }
}

Related

1. sanitizeFullPrefixKey(String propKey)
2. sanitizeGoogleId(String rawGoogleId)
3. sanitizeHeader(String header)
4. sanitizeID(String name)
5. sanitizeIdentifier(String identifier)
6. sanitizeIDs(String str)
7. sanitizeInput(String input)
8. sanitizeInput(String string)
9. sanitizeJavascript(String originalString)