Examples of org.eclipse.jface.text.rules.IPredicateRule.evaluate()

org.eclipse.jface.text.rules.IPredicateRule.evaluate()

Evaluates the rule by examining the characters available from the provided character scanner. The token returned by this rule returns true when calling isUndefined, if the text that the rule investigated does not match the rule's requirements. Otherwise, this method returns this rule's success token. If this rules relies on a text pattern comprising a opening and a closing character sequence this method can also be called when the scanner is positioned already between the opening and the closing sequence. In this case, resume must be set to true. @param scanner the character scanner to be used by this rule @param resume indicates that the rule starts working between the opening and the closing character sequence @return the token computed by the rule

    IToken token;
    for (IRule r : fRules) {
      IPredicateRule rule = (IPredicateRule) r;
      token= rule.getSuccessToken();
      if (token.getData().equals(contentType)) {
        token = rule.evaluate(this, true);
        if (token.isEOF() || !token.isUndefined()) {
          return token;
        }
      }
    }

        if (this.fContentType.equals(token.getData().toString())
                || this.fContentType.equals(token.getData().toString() + "_begin")
                || this.fContentType.equals(token.getData().toString() + "_end")
                || this.fContentType.equals(token.getData().toString() + "_attribs")) {
          // The content type matches, so we want to run the resume on the rule.
          token= rule.evaluate(this, resume);
          if (!token.isUndefined()) {
              this.fContentType= null;
            return token;
          }
        }

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