de-deprecate re.nim

lib/impure/re.nim

@@ -7,8 +7,11 @@
 #    distribution, for details about the copyright.
 #
 
-## Regular expression support for Nim. Deprecated. Consider using the ``nre``
-## or ``pegs`` modules instead.
+## Regular expression support for Nim. This module still has some
+## obscure bugs and limitations,
+## consider using the ``nre`` or ``pegs`` modules instead.
+## We had to de-deprecate this module since too much code relies on it
+## and many people prefer its API over ``nre``'s.
 ##
 ## **Note:** The 're' proc defaults to the **extended regular expression
 ## syntax** which lets you use whitespace freely to make your regexes readable.
@@ -28,8 +31,6 @@
 import
   pcre, strutils, rtarrays
 
-{.deprecated.}
-
 const
   MaxSubpatterns* = 20
     ## defines the maximum number of subpatterns that can be captured.
@@ -78,7 +79,7 @@ proc finalizeRegEx(x: Regex) =
   if not isNil(x.e):
     pcre.free_substring(cast[cstring](x.e))
 
-proc re*(s: string, flags = {reExtended, reStudy}): Regex {.deprecated.} =
+proc re*(s: string, flags = {reExtended, reStudy}): Regex =
   ## Constructor of regular expressions. Note that Nim's
   ## extended raw string literals support this syntax ``re"[abc]"`` as
   ## a short form for ``re(r"[abc]")``.