function list - need help with regular expression



  • Hello,

    to 1: Yes - I assumed this.
    to 2: Yes - this was the case from the beginning.

    To clarify: the problem ist not that the parsing is not working at all - the problem ist that not all headlines are found. Till now I only have regular expressions which either find

    • the first headline
      expr="(?-s)^=+.*=+$"
    • all headlines but take them for one headline
      expr="^=+.*=+$"

    Thanks,
    Christian



  • What about (?m)^=+.*=+$ or (?-s)=+.*?=+ ?



  • Hi,

    both expressions only show the first header. All headlines after the first header are ignored.

    My testfile has the name tst.wik and looks like this

    = header 1 = 
    text 
    == sub header 1 == 
    text
    

    CU
    Christian



  • Sorry - I need to correct me - both expressions show the last header



  • Are you applying the changes to the correct functionList.xml?
    There might be more then one functionList.xml file on your system.



  • Hello Christian 11235, Claudia, MAPJe71 and All,

    Christian, I suppose that you’re speaking about the Wikimarkup, used in Wikipedia, aren’t you ?

    https://en.wikipedia.org/wiki/Help:Wiki_markup

    For a rapid test of your parser, you may, simply, use a usual text file. You don’t need to create any UDL language !


    So, in a new tab, add the test lines, below :

    = Header 1 =
    Line 1
    Line 2
    Line 3
    == sub header 002 ==
    Line 4
    Line 5
    Line 6
    === sub header_3 ===
    Line 7
    Line 8
    Line 9
    ==== sub header     4 ====
    Line 10
    line 11
    line 12
    ===== TEST =====
    Line 13
    Line 14
    Line 15
    ====== sub header 6 ======
    Line 16
    Line 17
    Line 18
    =			Last test  ab___c     d            ==
    Line 19
    Line 20
    Line 21
    ======= Should NOT be displayed =======
    Line 22
    Line 23
    Line 24
    
    • Save it as a .txt file

    Then, in your functionList.xml file :

    • In the associationMap node, add the line :

      <association langID= “0” id=“wiki_syntax” />

    • And, at the beginning of the parser node, add the parser, below :

    <parser id="wiki_syntax" displayName="wiki">
        <function
            mainExpr="^(={1,6})\h+\K(\w| )+(?=\h+\1)">
        </function>
    </parser>
    

    You should see, in the Function List panel, each header of the different sections of my example:

    Header 1
    sub header 002
    sub header_3
    sub header     4
    TEST
    sub header 6
    Last test ab___c     d
    

    NOTES :

    • In the value of mainExpr, there is a space between the alternative sign | and the ending round bracket )

    • I supposed that a header, of a section, is a non-empty string, which contains, ONLY :

      • Usual word characters ( Upper and lower letters, digits and the underscore _ )

      • Space characters

    • I didn’t consider the tabulation character. Indeed, if a header is, for instance, the string A[Tab][Tab][Tab][Tab][Tab]B, it is, simply, displayed as the string AB, in the FunctionList panel, anyway !

    => The middle part of the regex = (\w| )+

    • From beginning of line, each section header :

      • Begins with one to six equal sign(s), followed by, at least, one space character ( => the first part of the regex = ^(={1,6})\h+\K )

      • Ends with the same number of equal signs, than, at beginning of line, preceded by, at least, one space character ( => the final part of the regex = (?=\h+\1) )

    • As this regex does NOT use the dot character, at all, the ``dot matches new line` way of search, of the functionList feature, doesn’t matter :-))

    Best Regards,

    guy038



  • Hi,

    @all: thanks a lot for you effort.

    @MAPJe71: As the changes show different results I think I edited the right xml file. There are also three languages in my functionsList.xml which I use in daily work - without problems.

    @uy038: I copied all your steps - and maybe I have done something wrong - because I don’t see anything.

    I took two screenshots:

    This one show the functionsList.xml and the test-file and the resulting function List:

    https://www.dropbox.com/s/z1cms3khiqmbe02/npp_screenshot01.jpg?dl=0

    This screenshot shows the same but the focus is now on the functionList.xml - and there you can see a working functions list (just to proof its working at all).

    https://www.dropbox.com/s/1uxii4mqhgw4vwz/npp_screenshot02.jpg?dl=0

    In my functionList.xml are three other languages - for these three languages the function list works.

    As said - thanks a lot for your effort. Maybe I am doing something wrong - but in the moment I cannot see it.
    Christian



  • Hi, Christian 11235,

    Thanks for your two screenshots. I just noticed that your .txt file is an Unix file ( with \n End of Line character )
    with an ANSI encoding. So I changed my Windows file, with UTF8 encoding to test but, of course, this makes NO difference. I mean : I did get the expected list of sections in the Function List panel !

    So, at first sight, I, really, do NOT understand what happens ???. An idiotic question, to be sure ! Of course, you may modify and save the functionList.xml file from within Notepad++. But you need to close and re-start N++ to get it working !


    Now, could you do an other simple test :

    • Use the SAME example text, of my previous post

    • In your functionList.xml file, in the “Wiki” parser, just change the line :

        mainExpr="^(={1,6})\h+\K(\w| )+(?=\h+\1)">
      

    by the line, below, which contains a very simple regex :

        mainExpr="^Line \d+">
    
    • Close and re-start N++

    • In the Function List panel, after selecting the test file, you should see the obvious list, below !

      Line 1
      Line 2
      Line 3
      Line 4
      Line 5
      Line 6
      Line 7
      Line 8
      Line 9
      Line 10
      line 11
      line 12
      Line 13
      Line 14
      Line 15
      Line 16
      Line 17
      Line 18
      Line 19
      Line 20
      Line 21
      Line 22
      Line 23
      Line 24

    Tested with N++ v7.2 and N++ v7.3.2 => Both OK

    Cheers,

    guy038



  • @guy038 is there a specific reason you use (\w| )+ instead of [\w ]+?



  • Hi, MAPJe71,

    Good question : Absolutely no reason, indeed ! The syntaxes (\w| )+ and ([\w ]+) are equivalent !

    I did a rapid test, comparing the two S/R, below

    SEARCH (\w| )

    REPLACE \1\1

    and

    SEARCH ([\w ])

    REPLACE \1\1

    After 722,970 replacements, in both cases, your method seems a bit quicker than mime : 71s instead of 73s for my solution !

    Cheers,

    guy038



  • Hello,

    1. Unix / Ansi is the default at the place I work at. I should have mentioned that.
      Now that I think about it - at work I have to use Windows 7 32 bit (please don’t make me explain this *1) and also n++ 32bit.

    2. Yes I always closed and restarted n++.

    3. mainExpr="^Line \d+"> shows nothing in the Function List (edited functionList.xml, saved, closed n++, started n++, n++ 7.3.2 (32 bit, Build Feb 12 2017) )

    Then i did some expermenting: Added my initial setup in functionList.xml, changed the test-file to UTF-8 BOM, Windows CR-LF. Result: only the first header is shown (no improvement).
    Maybe it has something to do with n++ 32bit ? Later I will try this at home (windows 10, 64 bit).

    Thanks,
    Christian

    *1 The company I work at believes in putting money in managers and outsourcing. Not in hired software engineers.



  • Hi,

    I am sorry - I just made a mistake and used the wrong functionList.xml. Now that I am doing it correct

    <function mainExpr="^(={1,6})\h+\K(\w| )+(?=\h+\1)"/>

    is working and shows the correct functions.

    I can only apologize and thank you for all the help,
    Christian


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