3 files changed, 13 insertions, 25 deletions

diff --git a/iup/src/iup_str.c b/iup/src/iup_str.c
index 5f5b85d..6ca8c1b 100755
--- a/iup/src/iup_str.c
+++ b/iup/src/iup_str.c
@@ -558,36 +558,25 @@ void iupStrToUnix(char* str)
   *pstr = *str;
 }
 
-char* iupStrToMac(const char* str)
+void iupStrToMac(char* str)
 {
-  int at_start = 1;
-  char* pstr, *new_str;
-
-  if (!str) return NULL;
-
-  if (iupStrLineCount(str) == 1)
-    return (char*)str;
+  char* pstr = str;
 
-  new_str = iupStrDup(str);
-  str = new_str;
-  pstr = new_str;
+  if (!str) return;
   
   while (*str)
   {
-    if (*str == '\n')
+    if (*str == '\r')
     {
-      if (!at_start && *(str-1) != '\r')  /* UNIX line end */
-        *pstr++ = '\r';
-      str++;
+      if (*(++str) == '\n')  /* DOS line end */
+        str++;
+      *pstr++ = '\r';
     }
     else
       *pstr++ = *str++;
-    at_start = 0;
   }
   
   *pstr = *str;
-
-  return new_str;
 }
 
 char* iupStrToDos(const char* str)
diff --git a/iup/src/iup_str.h b/iup/src/iup_str.h
index 1c2e7a5..e7599fb 100755
--- a/iup/src/iup_str.h
+++ b/iup/src/iup_str.h
@@ -150,10 +150,9 @@ int iupStrReplace(char* str, char src, char dst);
  * \ingroup str */
 void iupStrToUnix(char* str);
 
-/** Convert line ends to MAC format (one \r per line).
- * If returned pointer different than input it must be freed.
+/** Convert line ends to MAC format in place (one \r per line).
  * \ingroup str */
-char* iupStrToMac(const char* str);
+void iupStrToMac(char* str);
 
 /** Convert line ends to DOS/Windows format (the sequence \r\n per line).
  * If returned pointer different than input it must be freed.
diff --git a/iup/src/win/iupwin_text.c b/iup/src/win/iupwin_text.c
index 2a61724..c0e7115 100755
--- a/iup/src/win/iupwin_text.c
+++ b/iup/src/win/iupwin_text.c
@@ -608,7 +608,7 @@ static int winTextSetValueAttrib(Ihandle* ih, const char* value)
   if (ih->data->is_multiline)
   {
     if (ih->data->has_formatting)
-      str = iupStrToMac(str);
+      iupStrToMac(str);
     else
       str = iupStrToDos(str);
   }
@@ -662,7 +662,7 @@ static int winTextSetSelectedTextAttrib(Ihandle* ih, const char* value)
     if (ih->data->is_multiline)
     {
       if (ih->data->has_formatting)
-        str = iupStrToMac(str);
+        iupStrToMac(str);
       else
         str = iupStrToDos(str);
     }
@@ -860,7 +860,7 @@ static int winTextSetInsertAttrib(Ihandle* ih, const char* value)
     if (ih->data->is_multiline)
     {
       if (ih->data->has_formatting)
-        str = iupStrToMac(str);
+        iupStrToMac(str);
       else
         str = iupStrToDos(str);
     }
@@ -883,7 +883,7 @@ static int winTextSetAppendAttrib(Ihandle* ih, const char* value)
   if (ih->data->is_multiline)
   {
     if (ih->data->has_formatting)
-      str = iupStrToMac(str);
+      iupStrToMac(str);
     else
       str = iupStrToDos(str);
   }