import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "^(\\+ *|- *)?((?!0+)\\d*?|(?!0{2,})\\d*?\\.(?!0+)\\d*?)('|\")$|^(\\+ *|- *)? *(?!0+)\\d+?' *-? *(\\d+?|\\d*?\\.\\d*?)\"$|^((\\+ *|- *)?((?!0+)|0 )\\d*? *(?!0+)\\d+?\\/(?!0+)\\d+?('|\"))$";
final String string = " - \n"
+ " + \n"
+ "- x 20'-4\"\n"
+ "+ 20'\n"
+ "- 20'\n"
+ "20'3\"\n"
+ "20'-3\"\n"
+ "20' - 40\"\n"
+ "-20'-20\"\n"
+ "20'00\"\n"
+ "20.45\"\n"
+ "20.45'\n"
+ "00.45'\n"
+ "00.45\"\n"
+ "00\"\n"
+ "00'\n"
+ "+20' - 0.45\"\n"
+ " 20' - .45\"\n"
+ ".20'-4\"\n"
+ "0.30'-4\"\n"
+ " 20'\n"
+ "20'P\n"
+ " 20\"\n"
+ "20\"P\n"
+ "0.20'\n"
+ ".20'\n"
+ "a'\n"
+ "b\"\n"
+ "- 20 1/2'\n"
+ "+ 20 22/128\"\n"
+ "20 0/2\"\n"
+ "20 00/12'\n"
+ "-1/2\"\n"
+ "+ 1/2'\n"
+ "0/2\"\n"
+ "00/22\"\n"
+ "+ 01/2\"\n"
+ "23 00/30'\n"
+ "23 12/03'\n"
+ "23 02/20\"\n"
+ "0 2/3'\n"
+ "00 2/3'\n"
+ "- 11 2/3'\n"
+ "2 22'\n"
+ "2 22/03'\n"
+ "2 3/2\n"
+ "23 00/30\n"
+ "23 12/03\n"
+ "23 02/20\n"
+ "23/34\"\n"
+ "23/23.4\"\n"
+ "asf sf\"\n";
final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE);
final Matcher matcher = pattern.matcher(string);
while (matcher.find()) {
System.out.println("Full match: " + matcher.group(0));
for (int i = 1; i <= matcher.groupCount(); i++) {
System.out.println("Group " + i + ": " + matcher.group(i));
}
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html