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Added StringView iteration

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This commit is contained in:
Brian Fiete 2020-03-27 08:28:57 -07:00
parent 6f975686f7
commit edcdb3bbb1
1 changed files with 154 additions and 141 deletions
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295
BeefySysLib/util/String.h
View file

@ -19,6 +19,145 @@ public:
const char* mPtr;
int mLength;
public:
struct iterator
{
public:
typedef std::random_access_iterator_tag iterator_category;
typedef char value_type;
typedef intptr difference_type;
typedef char* pointer;
typedef char& reference;
public:
char* mPtr;
public:
iterator(char* ptr)
{
mPtr = ptr;
}
iterator& operator++()
{
mPtr++;
return *this;
}
iterator operator++(int)
{
auto prevVal = *this;
mPtr++;
return prevVal;
}
bool operator!=(const iterator& itr) const
{
return itr.mPtr != mPtr;
}
bool operator==(const iterator& itr) const
{
return itr.mPtr == mPtr;
}
intptr operator-(const iterator& itr) const
{
return mPtr - itr.mPtr;
}
iterator operator+(intptr offset) const
{
iterator itr(mPtr + offset);
return itr;
}
char& operator*()
{
return *mPtr;
}
char* operator->()
{
return mPtr;
}
bool operator<(const iterator& val2)
{
return mPtr < val2.mPtr;
}
};
struct const_iterator
{
public:
typedef std::random_access_iterator_tag iterator_category;
typedef char value_type;
typedef intptr difference_type;
typedef const char* pointer;
typedef const char& reference;
public:
const char* mPtr;
public:
const_iterator(const char* ptr)
{
mPtr = ptr;
}
const_iterator& operator++()
{
mPtr++;
return *this;
}
const_iterator operator++(int)
{
auto prevVal = *this;
mPtr++;
return prevVal;
}
bool operator!=(const const_iterator& itr) const
{
return itr.mPtr != mPtr;
}
bool operator==(const const_iterator& itr) const
{
return itr.mPtr == mPtr;
}
intptr operator-(const iterator& itr) const
{
return mPtr - itr.mPtr;
}
const_iterator operator+(intptr offset) const
{
const_iterator itr(mPtr + offset);
return itr;
}
const char& operator*()
{
return *mPtr;
}
const char* operator->()
{
return mPtr;
}
bool operator<(const const_iterator& val2)
{
return mPtr < val2.mPtr;
}
};
public:
StringView()
{
@ -151,6 +290,16 @@ public:
}
StringSplitEnumerator Split(char c);
const_iterator begin() const
{
return mPtr;
}
const_iterator end() const
{
return mPtr + this->mLength;
}
};
struct StringSplitEnumerator
@ -351,143 +500,7 @@ public:
char* mPtr;
public:
struct iterator
{
public:
typedef std::random_access_iterator_tag iterator_category;
typedef char value_type;
typedef intptr difference_type;
typedef char* pointer;
typedef char& reference;
public:
char* mPtr;
public:
iterator(char* ptr)
{
mPtr = ptr;
}
iterator& operator++()
{
mPtr++;
return *this;
}
iterator operator++(int)
{
auto prevVal = *this;
mPtr++;
return prevVal;
}
bool operator!=(const iterator& itr) const
{
return itr.mPtr != mPtr;
}
bool operator==(const iterator& itr) const
{
return itr.mPtr == mPtr;
}
intptr operator-(const iterator& itr) const
{
return mPtr - itr.mPtr;
}
iterator operator+(intptr offset) const
{
iterator itr(mPtr + offset);
return itr;
}
char& operator*()
{
return *mPtr;
}
char* operator->()
{
return mPtr;
}
bool operator<(const iterator& val2)
{
return mPtr < val2.mPtr;
}
};
struct const_iterator
{
public:
typedef std::random_access_iterator_tag iterator_category;
typedef char value_type;
typedef intptr difference_type;
typedef const char* pointer;
typedef const char& reference;
public:
const char* mPtr;
public:
const_iterator(const char* ptr)
{
mPtr = ptr;
}
const_iterator& operator++()
{
mPtr++;
return *this;
}
const_iterator operator++(int)
{
auto prevVal = *this;
mPtr++;
return prevVal;
}
bool operator!=(const const_iterator& itr) const
{
return itr.mPtr != mPtr;
}
bool operator==(const const_iterator& itr) const
{
return itr.mPtr == mPtr;
}
intptr operator-(const iterator& itr) const
{
return mPtr - itr.mPtr;
}
const_iterator operator+(intptr offset) const
{
const_iterator itr(mPtr + offset);
return itr;
}
const char& operator*()
{
return *mPtr;
}
const char* operator->()
{
return mPtr;
}
bool operator<(const const_iterator& val2)
{
return mPtr < val2.mPtr;
}
};
protected:
void EnsureMutable()
@ -989,22 +1002,22 @@ public:
return IndexOf(str) != -1;
}
const_iterator begin() const
StringView::const_iterator begin() const
{
return GetPtr();
}
const_iterator end() const
StringView::const_iterator end() const
{
return GetPtr() + this->mLength;
}
iterator begin()
StringView::iterator begin()
{
return GetMutablePtr();
}
iterator end()
StringView::iterator end()
{
return GetMutablePtr() + this->mLength;
}