I am pretty new to KNIME and somewhat new to regex.
I am trying to extract phrases of the form "a number that occurs 1 to 3 words prior to a keyword". I have found / modified / tested expressions that do this and that return results I like in the various regex testing pages (for example https://regex101.com/), but I can't seem to get these to work in KNIME.
Not working looks like:
I put the regex inside double quotes in String Manipulation
returns False for every row, even texts that return full match in the test webseite.
Or, I run the text field through Strings to Document, then put the same regex into RegEx Filter (without the double quotes), and nothing is filtered out, even though I know there are hits in the corpus.
These tests lead me to belive that as a newbie, I am not looking at the right sequence of steps to find a True value for the Regular Expression and extract the matching text.
I would deeply appreciate any pointers from the group.
Thanks in advance!