FileTypeRegExpTranslator.java

package org.smallmind.license;

public class FileTypeRegExpTranslator {

  public static String translate (String pattern) {

    StringBuilder patternBuilder;
    char curChar;
    int index;

    patternBuilder = new StringBuilder();
    for (index = 0; index < pattern.length(); index++) {
      curChar = pattern.charAt(index);
      switch (curChar) {
        case '$':
          patternBuilder.append("\\$");
          break;
        case '.':
          patternBuilder.append("\\.");
          break;
        case '*':
          patternBuilder.append(".*");
          break;
        case '?':
          patternBuilder.append(".?");
          break;
        default:
          patternBuilder.append(curChar);
      }
    }

    return patternBuilder.toString();
  }

}