Added ftpclient module. Fixed docs in sockets module. Added dll tests to test suite.

lib/pure/parseutils.nim

@@ -164,6 +164,13 @@ proc parseWhile*(s: string, token: var string, validChars: set[char],
   result = i-start
   token = substr(s, start, i-1)
 
+proc captureBetween*(s: string, first: char, second = '\0', i = 0): string =
+  ## Finds the first occurence of ``first``, then returns everything from there
+  ## up to ``second``(if ``second`` is '\0', then ``first`` is used).
+  var i = skipUntil(s, first, i)+1
+  result = ""
+  discard s.parseUntil(result, if second == '\0': first else: second, i)
+
 {.push overflowChecks: on.}
 # this must be compiled with overflow checking turned on:
 proc rawParseInt(s: string, b: var biggestInt, start = 0): int =