RegExDot.Span

AUTHOR

Dr. Alistair Ward

DESCRIPTION

Delimits a data-sequence, via its offset & length, within a wider list.

Types

Type-synonyms

type Span = (DataLength, DataLength)

• The offset & length of a specific data-sequence, within a wider list.
• Similar to https://hackage.haskell.org/packages/archive/regex-base/latest/doc/html/Text-Regex-Base-RegexLike.html#t%3AMatchArray.

Functions

after :: Span -> DataLength

Returns the furthest extent, i.e. the offset just after the end.

empty :: DataLength -> Span

An empty instance, located at the specified offset.

join

Arguments

:: DataLength

The offset into the list of input-data to use when a null list of spans is received.

-> [Span]

-> Span

• Condenses a list into a single value.
• Expects a gap-free, sorted list.