wordsBy

Split into "words", with word boundaries indicated by the given predicate. Satisfies words === wordsBy isSpace; equivalent to split . dropBlanks . dropDelims . whenElt.

>>> wordsBy (`elem` ",;.?! ") "Hello there, world! How?"
["Hello","there","world","How"]

>>> wordsBy (=='x') "dogxxxcatxbirdxx"
["dog","cat","bird"]

A variant of words with a custom test. In particular, adjacent separators are discarded, as are leading or trailing separators.

wordsBy (== ':') "::xyz:abc::123::" == ["xyz","abc","123"]
\s -> wordsBy isSpace s == words s

Chop a list into segments, at separators identified by the predicate. The separator items are discarded.

Like splitOn after stripping leading, trailing, and repeated separators. Therefore, ".a..b." with . as the separator would be parsed as ["a","b"]. In other words, its like parsing words from whitespace separated text.

>>> wordsBy' p xs = Stream.toList $ Stream.wordsBy p Fold.toList (Stream.fromList xs)

>>> wordsBy' (== ',') ""
[]

>>> wordsBy' (== ',') ","
[]

>>> wordsBy' (== ',') ",a,,b,"
["a","b"]

words = wordsBy isSpace

Split the stream after stripping leading, trailing, and repeated separators as per the fold supplied. Therefore, ".a..b." with . as the separator would be parsed as ["a","b"]. In other words, its like parsing words from whitespace separated text.

Split a list into sublists. Generalisation of the prelude function words. Same as wordsBy and wordsBy, but with the non-emptyness guarantee on the chunks. O(n).

words xs == wordsBy isSpace xs

split given list of a by given single a, e.g.

>>> wordsBy (== ':') "bd:3"
["bd", "3"]

Split into "words", with word boundaries indicated by the given predicate. Satisfies words === wordsBy isSpace; equivalent to split . dropBlanks . dropDelims . whenElt. For example:

>>> wordsBy (=='x') (BV.fromList "dogxxxcatxbirdxx")
["dog","cat","bird"]