How to build Jape rules in gate

Question

I need to build a rule where Lhs check if the first character of word beggin in b then check the whole word without the first character that found in lookup

Answer 1

This is a sample code for something similar to what you want(Copied from https://gate.ac.uk/wiki/jape-repository/strings.html#section-1.). You can read a little more and get to the exact solution:

Rule:GetMobile
(
 {Phone}
):tag
-->
:tag{

// get the offsets
 Long phoneStart = tagAnnots.firstNode().getOffset();
 Long phoneEnd = tagAnnots.lastNode().getOffset();

// check the number is longer than or equal to 2 characters (just in case)
 if(phoneEnd - phoneStart >= 2) {
   try {
     String firstTwoChars = doc.getContent()
         .getContent(tagAnnots.firstNode().getOffset(),
                     tagAnnots.firstNode().getOffset() + 2).toString();

// check it matches 07
     if("07".equals(firstTwoChars)) {
       // create the new annotation

    gate.FeatureMap features = Factory.newFeatureMap();
    features.put("kind", "mobile");
    outputAS.add(tagAS.firstNode(),
                           tagAS.lastNode(), "Phone", features);
     }
   }
   catch(InvalidOffsetException e) {
     // not possible
     throw new LuckyException("Invalid offset from annotation");
   }
 }
}

Here are some places where you can read up:

https://gate.ac.uk/wiki/jape-repository/

https://gate.ac.uk/sale/talks/gate-course-jun14/module-1-jape/module-1-jape.pdf