Problem in pattern matching

[Gunner 1]

Hello,
I manage to write a pattern matching that game with a "rule of my text file that is under cete form:

rule "rrrr"
	xxxx
when
yyyy
                yyyy
then
bbbb
                bbbb
end

so that I can do it for each of these rules, get the value of rrrr, xxxx, my "aaaa" and "bbbb" and can reflects carriage returns which can be as linux or windows and tabs as possible in my example. But it is giving me an error, do you guys have any solution for this. I will he very happy if an sample code is provided.

[NetWorkInG]

Hello,
The simplest of use can be \ that includes both spaces, tabs that returns a different line. So you can get away with something like:

rule \ s +"(.*?)"\ s +(.*?)\ s + when \ s +((?:.*? \ s +)*?)then \ s +((?:.*? \ s +)*?)end

Or in the more readable format

(? x)
rule \ s + "(.*?)" \ s + 
    (.*?) \ s +
    when \ s +
        ( (?: .*? \ s + )*? )
    then \ s +
        ( (?: .*? \ s + )*? )
end

[Gunner 1]

Hello,
Thanks for your reply. When I put this line here, I have a compilation error:

Pattern p = Pattern.compiles("rule\ s+"(.*?)"\ s+(.*?)\ s+ when\ s+((?:.*?\ s+)*?) then\ s+((?:.*?\ s+)*?) end ");

Otherwise, compared to the solution

\ s + is a multi-whitespace characters.

However, I still have text between my "rule" and my first carriage return, then,is that this expression is correct? Thank you , do you have any solution for this?

[SoftWore]

Hello,
For the compilation error, because it takes double the \, a \ simple introduces a java escape character, and for a \ character must overtake: \ \. For the text between rule and the first carriage return, it seems that the proposal Uther reflects this with rule \ +"(.*?)" s \ s. To check if you have not already used it somewhere in your code.

[Gunner 1]

Hello,
I begin to understand. In fact, my pattern includes a readLine (), so that I read line by line (I think the readLine makes the line without the newline), so it could not walk. I'll put the contents of my entire file into a string, I'm testing again, and I know you want. Thank you and if you have an other alternative then please help me by posting it.

[Windowed]

Hello,
I have an code with me but not sure that is what you want, you can check it and if it works well and good.

public static void initializeRules(){
        String ln;
        FileInputStream fis = null;
        String flnm =
            "C: / projects / ........../  CV.drl";
        File fl = new File(flnm);
 
        when \ \ +((?:.*? s \ \ s +) *?) then \ \ s +((?:.*? \ \ s +)*?) end ");
        / / Pattern p = Pattern.compile ( "rule \ "(.*) \" \ \ s * ");
        Pattern p = Pattern.compiles("^" rule, Pattern.MULTILINE);
        try {
            String nmrl;
            String wrl;
            String trul;
            String fl2 = FileUtils.readUTF8File(fl);
            System.out.System.out.println("fl2:"+ File);
            Matcher m = p.matcher(fl2);
            if (m.games()){
                nmrl = m.group(1);
                / / wrl = m.group (2);
                / / trul = m.group (3);
                / / System.out.println ( "Found:" + ln);
                System.out.System.out.println("nmrl"+ nmrl);
                / / System.out.println ( "wrl:" + wrl);
                / / System.out.println ( "trul:" + trul);
            }
            else{
                System.out.System.out.println("It does not matche");
            }
        } catch (FileNotFoundException e) {
            / / Log the error
        } catch (UnsupportedEncodingException e) {
            / / Log the error
        } catch (IOException e) {
            / / Log the error
        }
    }