Position of criteria

Hi Mederic,

have you provided correct output? I've created End of position number column for you which is combination of criteria with end of pos number separated by |. As you can see in row 4 - there are 2 matches.

I don't know why do you need such position, but maybe you just want to extract text after this position. If yes, you can delete all steps except Source and Ad_Extract.

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("LY69CsMwDAZfRXhuSOy8QTsHOhQ6hAzCdltDIgdFofjt65+u4nTfzbOyJ7MnWROc5DyDjXQIn1ZCJLVcZvUM5AK9gSO6erjFbV+9eAeRYNS9Nr0ZjAF8Sf4fIXnko5IPRjr2yFLIjDVyhA6uCTBwhe4cXZsr1JB9Q59tEzoPoSVMGEg8IVkPWyT5FFn1tOYvcl6S9M8jYbQCWhdPB+5krHpd09Sy/AA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Comment = _t]),
    Criteria = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45W0jcyUtBVUIrVATEN0DlITBjbGCGIwtRF5gDZsQA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Text = _t]),
    CritBuffer = List.Buffer(Criteria[Text]),
    StepBack = Source,
    Ad_EndOfPositionNumber = Table.AddColumn(StepBack, "End of position number", each
        [ a = List.Transform(CritBuffer, (x)=> let a1 = Text.PositionOf([Comment], x), a2 = if a1 = -1 then null else Text.Combine({x, Text.From(a1 + Text.Length(x))}, "| ") in a2),
          b = List.RemoveNulls(a),
          c = Text.Combine(b, "#(lf)")
        ][c], type text ),
    Ad_Extract = Table.AddColumn(Ad_EndOfPositionNumber, "Extract", each
        [ a = Text.Split([Comment], " "),
          b = List.PositionOf(List.Transform(a, (x)=> Text.Contains(x, "/")), true),
          c = Text.Trim(Text.Combine(List.Skip(a, b+1), " "), {" ", "-"})
        ][c], type text)
in
    Ad_Extract