distinction between re.replace and re.replacef; speed improvements for re module

lib/wrappers/claro.nim

@@ -27,7 +27,7 @@ when defined(windows):
     clarodll = "claro.dll"
 elif defined(macosx): 
   const 
-    clarodll = "libclaro.dynlib"
+    clarodll = "libclaro.dylib"
 else: 
   const 
     clarodll = "libclaro.so"

lib/wrappers/pcre.nim

@@ -39,7 +39,7 @@ when not defined(pcreDll):
   when hostOS == "windows":
     const pcreDll = "pcre3.dll"
   elif hostOS == "macosx":
-    const pcreDll = "libpcre.dynlib"
+    const pcreDll = "libpcre(.3|).dylib"
   else:
     const pcreDll = "libpcre.so(.3|)"
 
@@ -275,7 +275,7 @@ proc maketables*(): ptr char{.cdecl, importc: "pcre_maketables",
                                        dynlib: pcredll.}
 proc refcount*(a2: ptr TPcre, a3: cint): cint{.cdecl, importc: "pcre_refcount", 
     dynlib: pcredll.}
-proc study*(a2: ptr TPcre, a3: cint, a4: cstringArray): ptr Textra{.cdecl, 
+proc study*(a2: ptr TPcre, a3: cint, a4: var cstring): ptr Textra{.cdecl, 
     importc: "pcre_study", dynlib: pcredll.}
 proc version*(): cstring{.cdecl, importc: "pcre_version", dynlib: pcredll.}
 

lib/wrappers/tcl.nim

@@ -39,7 +39,7 @@ when defined(WIN32):
     dllName = "tcl(85|84|83|82|81|80).dll"
 elif defined(macosx): 
   const 
-    dllName = "libtcl(8.5|8.4|8.3|8.2|8.1).dynlib"
+    dllName = "libtcl(8.5|8.4|8.3|8.2|8.1).dylib"
 else: 
   const 
     dllName = "libtcl(8.5|8.4|8.3|8.2|8.1).so.(1|0)"

lib/wrappers/tre.nim

@@ -10,7 +10,7 @@ when not defined(treDll):
   when hostOS == "windows":
     const treDll = "tre.dll"
   elif hostOS == "macosx":
-    const treDll = "libtre.dynlib"
+    const treDll = "libtre.dylib"
   else:
     const treDll = "libtre.so(.5|)"