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    regex: Match everything up to linebreak but not linebreak

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    • Hellena CrainicuH
      Hellena Crainicu
      last edited by

      hello. This is the line from my Python code, with the regex I must change a little bit:

      words = re.findall(r'\w+', new_filename)

      Basically, this will select the content of <title></title> tag and it will save it as an html.

      For example:

      <title>My name is Peter | Prince Justin (en)</title>

      must be save as:

      my-name-is-peter.html (so, without everything after | )

      My regex \w+ will select also the linebreak | and after it. I need to change this regex, in order to select all words before linebreak.

      I try also, this 2 regex, but are not good: \w+.*\| or \w+.*?[\s\S]\|

      Can anyone help me?

      Neil SchipperN 1 Reply Last reply Reply Quote 0
      • Neil SchipperN
        Neil Schipper @Hellena Crainicu
        last edited by

        @Hellena-Crainicu It looks like you are asking about usage of Python’s regex machinery, and not the regex within Notepad++. Is this correct?

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        • Hellena CrainicuH
          Hellena Crainicu
          last edited by

          I work only with notepad++, just running the code in Python.

          Neil SchipperN 1 Reply Last reply Reply Quote 0
          • Neil SchipperN
            Neil Schipper @Hellena Crainicu
            last edited by

            @Hellena-Crainicu But you’re asking about a regex to feed into a call to re.findall(), correct? Or are you asking how to convert lines of text that look like your <title>..<\title> example that are in a text file loaded in the np++ editor?

            If it’s the latter, I have a solution but I’m confused.

            1 Reply Last reply Reply Quote 0
            • Hellena CrainicuH
              Hellena Crainicu
              last edited by

              @Neil-Schipper I am using \w+ as you can see. But I need to stop selecting on the linebreak |, othewise I will get my-name-is-peter-prince-justin.html instead of my-name-is-peter.html

              Neil SchipperN 1 Reply Last reply Reply Quote 0
              • Neil SchipperN
                Neil Schipper @Hellena Crainicu
                last edited by

                @Hellena-Crainicu I’m not getting the clarity I’m hoping for. Here are two very different things people do on computers:

                1. running a python program that processes an input file, and maybe changes it or produces an output file, etc.

                2. having a file loaded in an editor, and running a search and replace operation on it

                Which of these are you trying to do (that requires regex assistance as you described)?

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                • Hellena CrainicuH
                  Hellena Crainicu
                  last edited by

                  it is just about the regex… maybe @guy038 will can help me. He is the master of regex.

                  1 Reply Last reply Reply Quote 0
                  • Neil SchipperN
                    Neil Schipper
                    last edited by

                    For my own amusement, I solved the problem in the editor.

                    I broke the problem into:

                    1. consume from start line to first ‘>’
                    2. capture everything up to and excluding (space followed by literal ‘|’) into group 1
                    3. consume everything else up to and including EOL

                    The search phrase ^.*?>(.+?)(?= \|).*?$ does this. Then replace with \1.html. Then a separate S&R can convert all spaces to ‘-’.

                    But I still don’t know what you’re asking for, because you refuse to tell me!

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                    • Neil SchipperN
                      Neil Schipper
                      last edited by

                      Again, for my own amusement (since I’ve never used re.sub() before, only match & split):

                      >>> t1 = re.sub(r"^.*?>(.+?)(?= \|).*?$", r"\1.html", "<title>My name is Peter | Prince Justin (en)</title>")
                      >>> t2 = re.sub(r"\s", r"-", t1)
                      >>> t2
                      'My-name-is-Peter.html'
                      >>>
                      
                      1 Reply Last reply Reply Quote 0
                      • Hellena CrainicuH
                        Hellena Crainicu
                        last edited by

                        I must split all html files, not just one. I don’t think I can use the replacement…

                            new_filename = title.get_text() 
                            new_filename = new_filename.lower()
                            words = re.findall(r'\w+', new_filename)
                            new_filename = '-'.join(words)
                            new_filename = new_filename + '.html'
                            print(new_filename)
                        
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                        • Hellena CrainicuH
                          Hellena Crainicu
                          last edited by

                          I try now this regex: \w+.*(?= \|)

                          words = re.findall(r"\w+.*(?= \|)", new_filename)

                          almost works, but I get: my name is peter.html (but without little dash)

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

                            You guys are OFF-TOPIC.
                            This is not an appropriate place to discuss Python’s regular expression engine.
                            Please find a more appropriate forum for that and confine discussions here to Notepad++ related topics.
                            Just because you write Python code in Notepad++ doesn’t make discussion of that code a Notepad++ topic.

                            1 Reply Last reply Reply Quote 0
                            • Hellena CrainicuH
                              Hellena Crainicu
                              last edited by Hellena Crainicu

                              I find the regex which I needed: \b\w+\b(?=[\w\s]+\|)

                              and in Python should be:

                              words = re.findall(r'\b\w+\b(?=[\w\s]+\|)', new_filename)

                              thanks @Neil-Schipper You give me a good ideea ;)

                              1 Reply Last reply Reply Quote 0
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