X-Git-Url: http://nitlanguage.org

diff --git a/lib/core/re.nit b/lib/core/re.nit
index 94672b4..048eed3 100644
--- a/lib/core/re.nit
+++ b/lib/core/re.nit
@@ -42,7 +42,7 @@ private extern class NativeRegex `{ regex_t* `}
 	new malloc `{ return malloc(sizeof(regex_t)); `}
 
 	# Compile the regular expression `regex` into a form that is suitable for subsequent `regexec` searches
-	fun regcomp(regex: NativeString, cflags: Int): Int `{
+	fun regcomp(regex: CString, cflags: Int): Int `{
 		return regcomp(self, regex, cflags);
 	`}
 
@@ -50,14 +50,14 @@ private extern class NativeRegex `{ regex_t* `}
 	#
 	# `nmatch` and `pmatch` are used to provide information regarding the location of any matches.
 	# `eflags` may be the bitwise-or of one or both of `flag_notbol` and `flag_noteol`.
-	fun regexec(string: NativeString, nmatch: Int, pmatch: NativeMatchArray, eflags: Int): Int `{
+	fun regexec(string: CString, nmatch: Int, pmatch: NativeMatchArray, eflags: Int): Int `{
 		return regexec(self, string, nmatch, pmatch, eflags);
 	`}
 
 	# Match `string` against the precompiled pattern buffer of `self`, do not locate matches
 	#
 	# `eflags` may be the bitwise-or of one or both of `flag_notbol` and `flag_noteol`.
-	fun regexec_match_only(string: NativeString, eflags: Int): Int `{
+	fun regexec_match_only(string: CString, eflags: Int): Int `{
 		return regexec(self, string, 0, NULL, eflags);
 	`}
 
@@ -67,7 +67,7 @@ private extern class NativeRegex `{ regex_t* `}
 	fun regfree `{ regfree(self); `}
 
 	# Turn the error codes that can be returned by both `regcomp` and `regexec` into error message strings
-	fun regerror(errcode: Int): NativeString `{
+	fun regerror(errcode: Int): CString `{
 		size_t len = regerror(errcode, self, NULL, 0);
 		char *message = malloc(len);
 		regerror(errcode, self, message, len);
@@ -115,8 +115,8 @@ private extern class NativeMatchArray `{ regmatch_t* `}
 	fun [](index: Int): NativeMatchArray `{ return self + index; `}
 end
 
-redef extern class NativeString
-	private fun substring_from(index: Int): NativeString `{ return self + index; `}
+redef extern class CString
+	private fun substring_from(index: Int): CString `{ return self + index; `}
 end
 
 redef class Text
@@ -239,7 +239,7 @@ class Regex
 			var error_cstr = native.regerror(res)
 
 			# We leave it to the lib to decide how to allocate the string that we keep
-			var error_str = error_cstr.to_s_with_copy
+			var error_str = error_cstr.to_s
 			error_cstr.free
 
 			return new Error(error_str)
@@ -279,7 +279,7 @@ class Regex
 		var error_cstr = native.regerror(errcode)
 
 		# We leave it to the lib to decide how to allocate the string that we keep
-		var error_str = error_cstr.to_s_with_copy
+		var error_str = error_cstr.to_s
 		error_cstr.free
 
 		return error_str
@@ -368,7 +368,7 @@ class Regex
 
 		# Actually execute
 		var cstr = text.to_cstring
-		var rets = cstr.to_s_with_length(text.byte_length)
+		var rets = cstr.to_s_unsafe(text.byte_length, copy=false)
 		var bytefrom = cstr.char_to_byte_index_cached(charfrom, 0, 0)
 		var subcstr = cstr.fast_cstring(bytefrom)
 		var eflags = gather_eflags
@@ -428,7 +428,7 @@ class Regex
 		# Actually execute
 		var cstr = text.to_cstring
 		var subcstr = cstr
-		var rets = cstr.to_s_with_length(text.byte_length)
+		var rets = cstr.to_s_unsafe(text.byte_length, copy=false)
 		var eflags = gather_eflags
 		var eflags_or_notbol = eflags | flag_notbol
 		var native_match = self.native_match