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/*
* StringRef.h
*
* Created on: 10 Jan 2016
* Author: David
*/
#ifndef STRINGREF_H_
#define STRINGREF_H_
#include <cstddef> // for size_t
#include <cstdarg> // for va_args
#include <cstring> // for strlen
#undef printf
// Class to describe a string buffer, including its length. This saves passing buffer lengths around everywhere.
class StringRef
{
char *p; // pointer to the storage
size_t len; // number of characters in the storage
public:
StringRef(char *pp, size_t pl) : p(pp), len(pl) { p[0] = 0; }
size_t Length() const { return len; }
size_t strlen() const;
char *Pointer() { return p; }
const char *Pointer() const { return p; }
char& operator[](size_t index) { return p[index]; }
char operator[](size_t index) const { return p[index]; }
void Clear() const { p[0] = 0; }
int printf(const char *fmt, ...) const __attribute__ ((format (printf, 2, 3)));
int vprintf(const char *fmt, va_list vargs) const;
int catf(const char *fmt, ...) const __attribute__ ((format (printf, 2, 3)));
int vcatf(const char *fmt, va_list vargs) const;
size_t copy(const char* src) const;
size_t cat(const char *src) const;
size_t cat(char c) const;
size_t StripTrailingSpaces() const;
bool IsEmpty() const { return p[0] == 0; }
};
// Class to describe a string which we can get a StringRef reference to
template<size_t Len> class String
{
public:
String() { storage[0] = 0; }
StringRef GetRef() { return StringRef(storage, Len + 1); }
const char *c_str() const { return storage; }
size_t strlen() const { return ::strlen(storage); }
bool IsEmpty() const { return storage[0] == 0; }
private:
char storage[Len + 1];
};
#endif /* STRINGREF_H_ */
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