import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "1_ (?<Chapter_1>[^<]*)\\n<(?<Benefit>[^<]*)>(?>.*\\n)+\\s*2_ ([^<]*)\\n<(?<IfNotPerform>[^<]*)>[^.*\\n+]\\s*3_ (?<Chapter_3>[^<]*)\\n<(?<ImplSteps>[^<]*)>.*\\n+\\s*\n"
+ "4_ (?<Chapter_4>[^<]*)\\n<(?<AffOpco>[^<]*)>(?>.*\\n)+\\s*5_ (?<Chapter_5>[^<]*)\\n<(?<AffServices>[^<]*)>.*\\n+\\s*6_ (?<Chapter_6>[^<]*)\\n<(?<ServiceImpact>[^<]*)>(?>.*\\n)+\\s*\n"
+ "7_ (?<Chapter_7>[^<]*)\\n<(?<Risks>[^<]*)>.*\\n+\\s*8_ (?<Chapter_8>[^<]*)\\n<(?<PreImplTest>[^<]*)>.*\\n+\\s*9_ (?<Chapter_9>[^<]*)\\n<(?<AfterImplTest>[^<]*)>.*\\n+\\s*\n"
+ "11_ (?<Chapter_11>[^<]*)\\n<(?<Fallback>[^<]*)>.*\\n+\\s*12_ (?<Chapter_12>[^<]*)\\n<(?<AffCI>[^<]*)>.*\\n+\\s*13_ (?<Chapter_13>[^<]*)\\n<(?<AffDC>[^<]*)>.*\\n+\\s*\n"
+ "15_ (?<Chapter_15>[^<]*)\\n<(?<WithinMW>[^<]*)>.*\\n+\\s*19_ (?<Chapter_19>[^<]*)\\n<(?<SAF>[^<]*)>.*\\n+\\s*20_ (?<Chapter_20>[^<]*)\\n<(?<Rollback>[^<]*)>(?>.*\\n)+\\s*43_(?<Chapter_43>[^<]*)\\n<(?<Impact>[^<]*)>";
final String string = "\n"
+ "**************************************************************\n"
+ " - MANDATORY FOR ALL CHANGES -\n"
+ "**************************************************************\n\n"
+ "1_ Motivation / Benefit / Reason for change \n"
+ "(Describe the Motivation, the benefit out of this change/ what will the change achieve/ what is the trigger/driver of this change)\n"
+ "<...> \n\n\n"
+ "2_ What will happen if Change not performed\n"
+ "(Describe the risk of not implementing the change)\n"
+ "<...> \n\n\n"
+ "3_ Change Scenario / detailed Implementation Steps\n"
+ "(Describe the change in a non-technical language/what will be changed)\n"
+ "<...>\n\n\n"
+ "4_ Affected OpCo/customers\n"
+ "(Please use: All Customers/None/Name of customer)\n"
+ "<...>\n\n"
+ " \n"
+ "5_ Affected Services\n"
+ "(List services which will be affected by the change: Data, IITC, SMS, Voice, Provisioning, M2M Portal, NB-IoT, B2C Portal, SOBE, API, Reporting, Billing, SMPP, Device Management, Customer Feature, WEB Service GUI, LBAS, C-IoT)\n"
+ "<...>\n\n\n"
+ "6_ Describe the SERVICE IMPACT eg: any outages to Infrastructure hardware or temporary loss of service?\n"
+ "(Describe the EXPECTED SERVICE IMPACT, during change implementation, including duration: Service Affecting activity? Service Outage / Service Degradation /if there is no impact then mention why.)\n"
+ "<...>\n\n\n"
+ "7_ Describe the RISKS during implementation/ what could go wrong? And add the worst case scenario.\n"
+ "(What will the customer face if the something goes wrong during execution (Worst case scenario). If there is no risk then mention why.)\n"
+ "<...>\n\n\n"
+ "8_ Pre-Implementation Tests/previous examples\n"
+ "(Please choose one of the following Test results evidences and provide the needed info, PLEASE COPY AND PAST YOUR CHOICE IN THE TRIANGLE BRACKETS:\n"
+ "a- Change has been performed before with same scenario successfully, CRQ examples: ...\n"
+ "b- Test document will be attached in work info [Y/N/NA]?: ...\n"
+ "c- Pilot testing was performed with users in Prod [Y/N/NA]?: ...\n"
+ "d- Test results can't be provided because: ....)\n"
+ "<...>\n\n"
+ "9_ Test Scenario after change\n"
+ "(Brief Description regarding the list of activities which will be done when the change is completed)\n"
+ "<...>\n\n\n"
+ "11_ Fallback Scenario\n"
+ "(Describe briefly what will be done in case of rollback)\n"
+ "<...>\n\n"
+ "12_ Affected Configuration Items (CIs/Components as: CSDB/GDSP/IITC/GCSDB/GGSN)\n"
+ "<...>\n\n\n"
+ "13_ Affected Data Centers \n"
+ "(Or Location: SPE1, SPE2, etc.)\n"
+ "<...>\n\n\n"
+ "15_ Within maintenance window (Y/N, Why?)\n"
+ "(If the change is out of the agreed Maintenance Window, please specifiy why)\n"
+ "<...>\n\n\n"
+ "19_ SAF [Y/N]\n"
+ "(Is the Activity Service Affecting [Y/N])\n"
+ "<...>\n\n\n"
+ "20_ Rollback outage [Y/N]\n"
+ "(Is there a downtime during Rollback? If yes, mention the duration)\n"
+ "<...>\n\n\n"
+ "22_ Fallback details (in UTC)\n"
+ "22a_ <Rollback Start: DD/MM/YYYY HH:MM>\n\n"
+ "22b_ <Rollback End: DD/MM/YYYY HH:MM>\"\n\n\n"
+ "40_ Change implementer (Group name, Operation Engineer Name & Email & contact number)\n"
+ "<...>\n\n\n"
+ "41_ VBPS Validation/SLS MDS engineer for VBPS changes (Who validated the change?)\n"
+ "<...>\n\n"
+ "42_ Capability Manager (Who reviewed the change for Level4)\n"
+ "<...>\n\n"
+ "43_Anything impacted? [Y/N]\n"
+ "<...>\n\n\n"
+ "--- End of required information --- *** Please Fill out *** ";
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