Question 331586 in Visual Studio Code Question posted in
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Visual Studio Code – Regexp to remove non-standard text

Using VS-Code I wish to use a regular expression based find/replace to remove all instances of non-standard text from a set of documents.

The title across the document set should be this:
<title>Alien Encounters 2023</title>

But, there are many pages where there is stray text, like:
<title>Alien Encounters 2023 - Ice Cream Van</title>
or
<title>Alien Encounters 2023 - Probed Again</title>

So, I’d like to match (and remove) any character between <title>Alien Encounters 2023 and </title>.

But, these blocks should not match: <strong>Alien Encounters 2023 - Probed Again</strong> (it’s the wrong element type). This one should also not match: <title>Alien Encounters 2022 - Probed Again</title> (it’s the wrong leading text).

Any reg-exp experts out there able to help me?

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3

Answers


  1. Chosen as BEST ANSWER
    0

    After some strong help from @HaoWu I managed it.

    1. Set VS-code to Use regular expressions in the search term
    2. Search for this: (<title>Alien Encounters 2023[^<>-]*?)s*-[^<>]*
    3. Replace with $1

  2. 0

    So you want to remove text starting with " – " and ending with (but excluding) "<"?

    The following should work for this simple case: / - [^<]*/

    • Space, hyphen, space
    • Followed by 0 or more characters that are not <
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  3. 0

    Yes, you can try this:

    <title>s*Alien Encounters 2023s*(.*?)</title>

    This regular expression will match any sequence of characters that starts with <title>, followed by one or more whitespace characters, then "Alien Encounters 2023", followed by one or more whitespace characters, and then any character between (), and finally ends with </title>. The "*" quantifier means that the whitespace characters can occur zero or more times, and the "?" quantifier means that the optional character group can occur zero or one time.

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