I have a program that require all keywords to be in a single paragraph, most of the time, separated by commas

For example:

I have those terms

1-Term
1.1-Term
2-Term
3-Term
4-Term

That i collected and organized into groups and subgroups with Titles and subtitles

Title

  • 1-Term

  • 1.1-Term

  • 2-Term

    • Sub-Title
      • 3-Term
      • 4-Term

But then i want to turn them into:

1-Term, 1.1-Term, 2-Term, 3-Term, 4-Term

Removing certain marked words(Titles and sub-Titles), any Empty/Blank space, and Line breaks, while adding the commas between The Terms. I want to keep certain dashes “-”(like in words )

1-Term,1.1 -Term,2-Term,3-Term,4-Term

  • bus_factor@lemmy.world
    1·
    4 hours ago

    Why do we replace the commas again with new lines?

    Consider this two-line output:

    $ echo 'a\nb'
a
b
$

    We convert the newlines to commas. Now there is a comma at the end of the last line as well, and because of no newline, the next prompt is at the end of the output:

    $ echo 'a\nb' | tr '\n' ,
a,b,$

    Substituting only the last comma ($ means end of line) allows us to get the output we expected:

    $ echo 'a\nb' | tr '\n' , | sed 's/,$/\n/'
a,b
$

    Or is there a way to combine them

    These two commands have equivalent output:

    tr '\n' ',' | tr ';' ',' 
tr '\n;' ',,'

    What tr does is take a list of characters in parameter 1 and converts them to the equivalent position character in parameter 2. There’s a little more to it (it supports ranges, for example), but this will do the job. To learn more you can run man tr to get the documentation for it.

    I tried What \w+\s+ Says About

    \w+\s+ matches “at least one word character and then at least one whitespace character”, and that’s not what you want. “The MCU” is one or more word characters, then a space, and then one or more word characters again, and that second part you’re not matching at all. In this case, you’re probably better off making a negative matching group where you make sure you don’t match across separators. What [^,;]+ Says About would match anything that’s not a comma or semicolon, for instance.

    The other problem with regex is that every implementation does things differently. For example, sed would interpret that plus as a literal +, so for sed syntax you’d need to use \+ instead. It also does not support \w and \s, and whether to use ( or \( for a literal parenthesis also varies between implementations. I often switch to Perl if I need to do some more complex regex shenanigans.

    • Cactus_Head@programming.devOPEnglish
      1·
      3 hours ago

      second part you’re not matching at all.

      That because the program/ add-on i am using, only requires certain keywords to blacklist videos

      so if it find What "X" Says About in a Video Title , it doesn’t need the rest of the sentence to blacklist the video.

      The other problem with regex is that every implementation does things differently

      Th developer links to Firefox’s developers Regex Documentation.

      Regex

You can use Regex to match very specific patterns of text.

/aaa+/i: will block content that include aaaAAAAAaaaaAAAaaa or aaaaaaaa
/top \d+/: will block content that include top 10 movies, top 5 upcoming movies

Supports negative too, by adding ! (exclamation mark) before the regex.
Example: !/^a/i will block content that does not start with a

      This is a snip-it of the the add-on Guide. I cant like to it cuz for some reason its only inside the extension but here is the add-on’s page