`Text.Parsing.Parser.String.string` parser efficiency

[jamesdbrock]

purescript-parsing/src/Text/Parsing/Parser/String.purs

Lines 43 to 44 in e801a0e

	case indexOf (wrap str) input of
	Just 0 -> do

Does this scan all the way to the end of the input string, looking for a match, even though it already knows it failed when it doesn't find a match at index 0? If that's what it's doing, that would be very inefficient.

[thomashoneyman]

This was fixed in #93, but we haven’t released the new version of the library yet. Good catch, though!