bug concerning constant evaluation fixed

lib/pure/pegs.nim

@@ -148,7 +148,7 @@ proc sequence*(a: openArray[TPeg]): TPeg =
   multipleOp(pkSequence, addSequence)
  
 proc `?`*(a: TPeg): TPeg =
-  ## constructs an optional piece with the PEG `a`
+  ## constructs an optional for the PEG `a`
   if a.kind in {pkOption, pkGreedyRep, pkGreedyAny, pkGreedyRepChar,
                 pkGreedyRepSet}:
     # a* ?  --> a*
@@ -159,7 +159,7 @@ proc `?`*(a: TPeg): TPeg =
     result.sons = @[a]
 
 proc `*`*(a: TPeg): TPeg =
-  ## constructs a "greedy repetition" piece the PEG `a`
+  ## constructs a "greedy repetition" for the PEG `a`
   case a.kind
   of pkGreedyRep, pkGreedyRepChar, pkGreedyRepSet, pkGreedyAny, pkOption:
     assert false

lib/pure/re.nim

@@ -224,7 +224,7 @@ proc replace*(s: string, sub: TRegEx, by: string): string =
   ## with the notation ``$i`` and ``$#`` (see strutils.`%`). Examples:
   ##
   ## .. code-block:: nimrod
-  ##   "var1=key; var2=key2".replace(p"{\ident}'='{\ident}", "$1<-$2$2")
+  ##   "var1=key; var2=key2".replace(re"{\ident}'='{\ident}", "$1<-$2$2")
   ##
   ## Results in:
   ##