Add RstlExtras

Former-commit-id: b2a9c6a8f3

include/rstl/StringExtras.hpp

@@ -0,0 +1,19 @@
+#ifndef _RSTL_STRINGEXTRAS
+#define _RSTL_STRINGEXTRAS
+
+#include "rstl/string.hpp"
+#include "rstl/vector.hpp"
+
+class CStringExtras {
+public:
+  static int IndexOfSubstring(const rstl::string&, const rstl::string&);
+  static int CompareCaseInsensitive(const rstl::string&, const rstl::string&);
+  static char ConvertToUpperCase(char c);
+  static rstl::string CreateFromInteger(int v);
+  static rstl::string ConvertToANSI(const rstl::wstring& str);
+  static rstl::wstring ConvertToUNICODE(const rstl::string& str);
+  static rstl::string ReadString(CInputStream& in);
+  static rstl::vector<rstl::string> TokenizeString(const rstl::string&, const char*, int);
+};
+
+#endif // _RSTL_STRINGEXTRAS

include/rstl/rc_ptr.hpp

@@ -8,6 +8,7 @@ class CRefData {
 public:
   CRefData(const void* ptr) : x0_ptr(ptr), x4_refCount(1) {}
   CRefData(const void* ptr, int refCount) : x0_ptr(ptr), x4_refCount(refCount) {}
+  ~CRefData() {}
 
   void* GetPtr() const { return const_cast< void* >(x0_ptr); }
   int GetRefCount() const { return x4_refCount; }

include/rstl/string.hpp

@@ -26,6 +26,7 @@ class basic_string {
   uint x8_size;
   uint _pad; // Alloc?
 
+  void internal_prepare_to_write(int len, bool);
   void internal_allocate(int size);
   // {
   //     x4_cow = reinterpret_cast<COWData*>(new uchar[size * sizeof(_CharTp) +
@@ -99,6 +100,8 @@ public:
   ~basic_string() { internal_dereference(); }
 
   size_t size() const { return x8_size; }
+  void reserve(int len) { internal_prepare_to_write(len, true); }
+
   void assign(const basic_string&);
   basic_string& operator=(const basic_string& other) {
     assign(other);
@@ -107,13 +110,15 @@ public:
   basic_string operator+(const _CharTp*);
   void append(const basic_string& other);
   void append(int, _CharTp);
+  void append(const _CharTp*, int);
 
   int _eq_helper(const basic_string& other) const;
   bool operator==(const basic_string& other) const;
   bool operator<(const basic_string& other) const;
 
-  const char* data() const { return x0_ptr; }
+  const _CharTp* data() const { return x0_ptr; }
   void PutTo(COutputStream& out) const;
+  const _CharTp at(int idx) const { return data()[idx]; }
 };
 
 template < typename _CharTp, typename Traits, typename Alloc >