Community
    • Login

    Find and replace line not starting with pattern and copy text from previous line

    Scheduled Pinned Locked Moved General Discussion
    16 Posts 5 Posters 2.0k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • guy038G
      guy038
      last edited by guy038

      Hello, @nitin-jain, @peterjones and All,

      Oh… Peter beats me at it ! Here is my solution, quite similar !

      If you are sure that all the dates are in increasing order, simply use the following regex S/R :

      • Open the Replace dialog ( Ctrl + H )

      • SEARCH (?-s)^(\[.+\]).+\R\K(?=\w)

      • REPLACE \1$0\x20

      • Tick the Wrap around option

      • Select the Regular repression search mode

      • Click several times on the Replace All button, till you see the message 0 occurrences were replaced in entire file

      So, from the INPUT text :

      [25/11/19, 16:26:33] Roger: Not received mail
      [25/11/19, 16:27:04] Niks: Refresh
      [25/11/19, 16:28:12] Roger: Plz send again
      [25/11/19, 16:28:55] Niks: ok sent
      [25/11/19, 16:29:14] Roger: Received ok thanks
      [25/11/19, 16:29:38] Niks: 👍🏻
      ‎[26/11/19, 13:20:31] Roger: ‎<attached: 00000110-PHOTO-2019-11-26-13-20-31.jpg>
      [26/11/19, 13:20:57] Roger: For 60000 units
      balance trf 59160
      [26/11/19, 13:30:55] Niks: Units Batch code
      SEGX-TWHB5Z 2500
      3CRD-QAMXD9 2500
      E4ZY-7HNK35 2500
      SGMV-FR4P5Y 2500
      [26/11/19, 13:32:55] Roger: Ok thanks
      

      you’ll get the expected OUTPUT result :

      [25/11/19, 16:26:33] Roger: Not received mail
      [25/11/19, 16:27:04] Niks: Refresh
      [25/11/19, 16:28:12] Roger: Plz send again
      [25/11/19, 16:28:55] Niks: ok sent
      [25/11/19, 16:29:14] Roger: Received ok thanks
      [25/11/19, 16:29:38] Niks: 👍🏻
      ‎[26/11/19, 13:20:31] Roger: ‎<attached: 00000110-PHOTO-2019-11-26-13-20-31.jpg>
      [26/11/19, 13:20:57] Roger: For 60000 units
      [26/11/19, 13:20:57] balance trf 59160
      [26/11/19, 13:30:55] Niks: Units Batch code
      [26/11/19, 13:30:55] SEGX-TWHB5Z 2500
      [26/11/19, 13:30:55] 3CRD-QAMXD9 2500
      [26/11/19, 13:30:55] E4ZY-7HNK35 2500
      [26/11/19, 13:30:55] SGMV-FR4P5Y 2500
      [26/11/19, 13:32:55] Roger: Ok thanks
      

      Best regards,

      guy038

      1 Reply Last reply Reply Quote 0
      • guy038G
        guy038
        last edited by guy038

        Hi, all,

        I suppose I find out a bug, in our Boost regex engine !

        Let’s take this simple example tet :

        []xyz
        ‎[]xyz
        []xyz
        ABC
        []xyz
        DEF
        

        Now, the four regexes below, should look for the literal string [] beginning a line, followed with any non-null string and its line-ending chars, ONLY IF not followed with a leading [ symbol !

        (?-s)^\\[\\].+\R(?!\\[)

        (?-s)^\\[\\].+\r\n(?!\\[)

        (?-s)^\x5b\x5d.+\R(?!\x5b)

        (?-s)^\x5b\x5d.+\r\n(?!\x5b)


        Thus, it should only match the txo lines, below :

        • The []xyz line before the string ABC

        • The []xyz line before the string DEF

        But, unfortunately, it also matches the first line []xyz ???

        Am I wrong in any way, in this matter ?

        BR

        guy038

        Alan KilbornA 1 Reply Last reply Reply Quote 0
        • Alan KilbornA
          Alan Kilborn @guy038
          last edited by

          @guy038 said in Find and replace line not starting with pattern and copy text from previous line:

          But, unfortunately, it also matches the first line []xyz ???
          Am I wrong in any way, in this matter ?

          When I copy -n-paste your black box data, there is an LRM in it, which seems to cause your erroneous match!

          07559618-c16f-4265-94b8-6f9f5f27d0d1-image.png

          PeterJonesP 1 Reply Last reply Reply Quote 3
          • PeterJonesP
            PeterJones @Alan Kilborn
            last edited by

            @alan-kilborn said in Find and replace line not starting with pattern and copy text from previous line:

            there is an LRM in it, which seems to cause your erroneous match!

            Indeed. I was originally going to ask Guy why my regex wasn’t working with the supplied data (the same question Guy asked us), when I happened to left arrow from the [ and stayed on that same line! That told me there was a hidden character, which is why I ran the reveal-hidden-characters script from the old conversation, and I saw the infamous LRM – which is why I added the paragraph to tell @nitin-jain to do the zero-width search/replace before doing the main search/replace.

            1 Reply Last reply Reply Quote 0
            • guy038G
              guy038
              last edited by guy038

              Hi, @nitin-jain, @peterjones, @alan-kilborn and All,

              Ah ah ! Alan, I, first, didn’t understand why you had the LRM sigle in the second line of my text. My second thought was that you created a Python script to make all these fancy Unicode format characters clearly visible ! But, luckily, marking any \x{200e} character did the trick and showed me a thin red mark when this special char is present !


              So, @nitin-jain, as @peterjones said, use this simple regex S/R, below, to get rid of these format characters !

              SEARCH [\x{200B}-\x{200F}\x{202A}-\x{202F}]

              REPLACE Leave EMPTY

              However, verify that this operation does not break down your text in any way ! I personally saw this case, while pasting Unicode characters from a long list, produced by this excellent and valuable site, regarding Unicode :

              https://r12a.github.io/uniview/


              Now, I’m pleased to note that there is no bug of our Boost regex engine, in this matter, as that special LRM char is quite a character different from a [ symbol !

              BR

              guy038

              Alan KilbornA 1 Reply Last reply Reply Quote 1
              • Alan KilbornA
                Alan Kilborn @guy038
                last edited by

                @guy038 said in Find and replace line not starting with pattern and copy text from previous line:

                Alan, … you created a Python script to make all these fancy Unicode format characters clearly visible

                Well, yes, I did. :-)

                1 Reply Last reply Reply Quote 0
                • Ahamed Nawas AliA
                  Ahamed Nawas Ali @PeterJones
                  last edited by

                  @PeterJones I have a similar scenario where i have 10K lines i need to fix, is there any shorter way? Also, is there any way we can unmark the line number for those identified lines which does not start with a pattern.

                  Example: My line number starts with datetime (2021-09-14T21:10:55+00:00)

                  And can i make all these lines which does not start with “2021-” without line numbers provided by notepad++?

                  PeterJonesP 1 Reply Last reply Reply Quote 0
                  • PeterJonesP
                    PeterJones @Ahamed Nawas Ali
                    last edited by

                    @Ahamed-Nawas-Ali said in Find and replace line not starting with pattern and copy text from previous line:

                    is there any shorter way?

                    The way described above is reasonably short. I am not sure what “improvement” you think is necessary (or even possible).

                    is there any way we can unmark the line number for those identified lines which does not start with a pattern.

                    Sorry, I don’t understand how that’s different than the original question.

                    You’ll have to give a better example – use the </> button on the toolbar when you are writing the post to create pairs of ```, between which you can paste your actual data:, something like

                    **data I have**:
                    ```
                    [1234] abcxyz
                    next line
                    [5678] pdq
                    aonther
                    ```
                    
                    **desired data after transformation**
                    ```
                    [1234] abcxyz
                    [1234] next line
                    [5678] pdq
                    [5678] aonther
                    ```
                    

                    …
                    This would be rendered as the following, so we know exactly what your “before” and “after” data needs to be.
                    —
                    data I have:

                    [1234] abcxyz
                    next line
                    [5678] pdq
                    aonther
                    

                    desired data after transformation

                    [1234] abcxyz
                    [1234] next line
                    [5678] pdq
                    [5678] aonther
                    

                    ----

                    Useful References

                    • Please Read Before Posting
                    • Template for Search/Replace Questions
                    • Formatting Forum Posts
                    • Notepad++ Online User Manual: Searching/Regex
                    • FAQ: Where to find other regular expressions (regex) documentation
                    1 Reply Last reply Reply Quote 0
                    • Ahamed Nawas AliA
                      Ahamed Nawas Ali
                      last edited by

                      @PeterJones, Thanks for your reply. I am sorry, I am new to this platform.

                      Example scenario i am dealing with is with Date_Time Sender Recepients Message delimited with ‘Tab’

                      2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	Learning
                      Selection
                      B. Home
                      Webinar 
                      IDB
                      20214980
                      202216
                      2021-09-15T11:19:14+00:00	Ahamed Ali	Nawas	Thanks!
                      

                      And i should make it like below

                      2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	Learning
                      2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	Selection
                      2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	B. Home
                      2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	Webinar 
                      2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	IDB
                      2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	20214980
                      2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	202216
                      2021-09-15T11:19:14+00:00	Ahamed Ali	Nawas	Thanks!
                      
                      Alan KilbornA 1 Reply Last reply Reply Quote 0
                      • Alan KilbornA
                        Alan Kilborn @Ahamed Nawas Ali
                        last edited by

                        @Ahamed-Nawas-Ali said :

                        Example scenario i am dealing with is with Date_Time Sender Recepients Message delimited with ‘Tab’

                        For this one, I considered the following to be enough to distinguish a timestamp line leader: 2021-09-15T

                        Thus I tried (based upon @guy038’s solution earlier in this thread):

                        Find: (?-s)^(\d{4}-\d\d-\d\dT.+\t).+\R\K(?!\d{4}-\d\d-\d\dT)
                        Replace: ${1}
                        Options: Wrap around, Regular expression
                        Action: Replace All (multiple times, until no more changes occur)

                        And after several Replace All presses, I obtained the following:

                        2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	Learning
                        2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	Selection
                        2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	B. Home
                        2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	Webinar 
                        2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	IDB
                        2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	20214980
                        2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	202216
                        2021-09-15T11:19:14+00:00	Ahamed Ali	Nawas	Thanks!
                        2021-09-15T11:19:14+00:00	Ahamed Ali	Nawas	
                        

                        Note that the last line of this output is “extra” and should be manually removed.

                        Ahamed Nawas AliA 1 Reply Last reply Reply Quote 1
                        • Ahamed Nawas AliA
                          Ahamed Nawas Ali @Alan Kilborn
                          last edited by

                          @Alan-Kilborn I tried with below in order to keep clicking on the buttons to replace everything and it worked in removing the line numbers however the strings are concatenated.

                          Find box: \n([^2021-])
                          Replace box: $1

                          Result:

                          2021-09-14T21:10:55+00:00	Nawas	Ram Kumar,Ahamed Ali	LearningSelectionB. HomeWebinar IDB20214980202216
                          2021-09-15T11:19:14+00:00	Ahamed Ali	Nawas	Thanks!
                          

                          And the results are messed up a bit. Anyway, thank you so much for the time stamp line leader and for now, i will have to use it anyway to avoid further delay in my project! Thanks @guy038 & @PeterJones for your guidance! Greatly appreciate your guidance to this community! God bless you all!

                          Alan KilbornA 1 Reply Last reply Reply Quote 0
                          • Alan KilbornA
                            Alan Kilborn @Ahamed Nawas Ali
                            last edited by

                            @Ahamed-Nawas-Ali said:

                            \n([^2021-])

                            That’s totally wrong for what you’re wanting… in several ways…
                            But since you seem to be in a hurry…and you can’t reasonably do anything with regex in a hurry…I won’t explain and I’ll just wish you good luck.

                            Ahamed Nawas AliA 1 Reply Last reply Reply Quote 0
                            • Ahamed Nawas AliA
                              Ahamed Nawas Ali @Alan Kilborn
                              last edited by

                              @Alan-Kilborn Sorry Alan! I know i am wrong with that “\n([^2021-])” as it will spoil my delimiter as well and there could be some other issues as well. Its true that one can’t learn Regex in a hurry! I am using yours snippet and thank you for that!

                              1 Reply Last reply Reply Quote 0
                              • guy038G
                                guy038
                                last edited by guy038

                                Hello, @ahamed-nawas-ali, @peterjones, @alan-kilborn and All,

                                @ahamed-nawas-ali, I’ll use a similar search regex to the @alan-kilborn’s one !


                                For example , given this INPUT text , below :

                                2021-09-14T21:10:55+00:00	ATX	Field3	Guy	Field5	Learning
                                Selection
                                B. Home
                                Webinar 
                                IDB
                                20214980
                                2021420214202216
                                2021-09-15T11:19:14+00:00	BYQ	Field3	Alan	Field5	Test
                                B. Home
                                Webinar 
                                IDB
                                20214980
                                2021-09-16T15:07:46+00:00	ATX	Field3	Peter	Field5	Try
                                Selection
                                B. Home
                                Webinar 
                                IDB
                                20214980
                                2021420214202216
                                Blablah
                                OK
                                END of story
                                
                                • Open the Replace dialog ( Ctrl+H )

                                • Uncheck all box options

                                • Search (?-s)^(\d{4}-.+\t).+\R\K(?!\d{4}-|\R|\z)

                                • Replace $1

                                • If necessary, check the Wrap around option

                                • Select the Regular expression search mode

                                • Click, exclusively, on the Replace All button, several times, till the message Replace All: 0 occurrences were replaced... is displayed !

                                At the end, you should get this expected OUTPUT text :

                                2021-09-14T21:10:55+00:00	ATX	Field3	Guy	Field5	Learning
                                2021-09-14T21:10:55+00:00	ATX	Field3	Guy	Field5	Selection
                                2021-09-14T21:10:55+00:00	ATX	Field3	Guy	Field5	B. Home
                                2021-09-14T21:10:55+00:00	ATX	Field3	Guy	Field5	Webinar 
                                2021-09-14T21:10:55+00:00	ATX	Field3	Guy	Field5	IDB
                                2021-09-14T21:10:55+00:00	ATX	Field3	Guy	Field5	20214980
                                2021-09-14T21:10:55+00:00	ATX	Field3	Guy	Field5	2021420214202216
                                2021-09-15T11:19:14+00:00	BYQ	Field3	Alan	Field5	Test
                                2021-09-15T11:19:14+00:00	BYQ	Field3	Alan	Field5	B. Home
                                2021-09-15T11:19:14+00:00	BYQ	Field3	Alan	Field5	Webinar 
                                2021-09-15T11:19:14+00:00	BYQ	Field3	Alan	Field5	IDB
                                2021-09-15T11:19:14+00:00	BYQ	Field3	Alan	Field5	20214980
                                2021-09-16T15:07:46+00:00	ATX	Field3	Peter	Field5	Try
                                2021-09-16T15:07:46+00:00	ATX	Field3	Peter	Field5	Selection
                                2021-09-16T15:07:46+00:00	ATX	Field3	Peter	Field5	B. Home
                                2021-09-16T15:07:46+00:00	ATX	Field3	Peter	Field5	Webinar 
                                2021-09-16T15:07:46+00:00	ATX	Field3	Peter	Field5	IDB
                                2021-09-16T15:07:46+00:00	ATX	Field3	Peter	Field5	20214980
                                2021-09-16T15:07:46+00:00	ATX	Field3	Peter	Field5	2021420214202216
                                2021-09-16T15:07:46+00:00	ATX	Field3	Peter	Field5	Blablah
                                2021-09-16T15:07:46+00:00	ATX	Field3	Peter	Field5	OK
                                2021-09-16T15:07:46+00:00	ATX	Field3	Peter	Field5	END of story
                                

                                Voila :-))


                                Notes :

                                • As you can see, the number of columns, before the last one, is not a problem !

                                • From beginning of line ( ^ ), the regex looks for a line beginning with 4 digits, followed with a dash character (\d{4}- ) and anything else till the last tabulation ( .+\t ) of current line

                                • This search, so far, is memorized and stored as group 1

                                • After the last field of the line and the line-break ( .+\R ), all the matched string is discarded ( \K )

                                • Thus, the regex engine is now searching for a zero-length string, at beginning of the next line, but ONLY IF this next line does not begin with :

                                  • 4 digits and a dash char

                                  • An other line-break

                                  • The very end of current file

                                • When this assertion is true, it just inserts the group 1 contents at the very beginning of current line

                                Best Regards

                                guy038

                                P.S. :

                                If the condition to detect the header lines seems not restrictive enough, you may use this alternate search regex :

                                • Search (?-is)^(20\d\d-\d\d-\d\dT.+\t).+\R\K(?!20\d\d-\d\d-\d\dT|\R|\z)
                                1 Reply Last reply Reply Quote 0
                                • First post
                                  Last post
                                The Community of users of the Notepad++ text editor.
                                Powered by NodeBB | Contributors