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#include "slang-string.h"
#include "text-io.h"
namespace Slang
{
// OSString
OSString::OSString()
: beginData(0)
, endData(0)
{}
OSString::OSString(wchar_t* begin, wchar_t* end)
: beginData(begin)
, endData(end)
{}
OSString::~OSString()
{
if (beginData)
{
delete[] beginData;
}
}
static const wchar_t kEmptyOSString[] = { 0 };
wchar_t const* OSString::begin() const
{
return beginData ? beginData : kEmptyOSString;
}
wchar_t const* OSString::end() const
{
return endData ? endData : kEmptyOSString;
}
// StringSlice
StringSlice::StringSlice()
: representation(0)
, beginIndex(0)
, endIndex(0)
{}
StringSlice::StringSlice(String const& str, UInt beginIndex, UInt endIndex)
: representation(str.buffer)
, beginIndex(beginIndex)
, endIndex(endIndex)
{}
//
_EndLine EndLine;
String operator+(const char * op1, const String & op2)
{
String result(op1);
result.append(op2);
return result;
}
String operator+(const String & op1, const char * op2)
{
String result(op1);
result.append(op2);
return result;
}
String operator+(const String & op1, const String & op2)
{
String result(op1);
result.append(op2);
return result;
}
int StringToInt(const String & str, int radix)
{
if (str.StartsWith("0x"))
return (int)strtoll(str.Buffer(), NULL, 16);
else
return (int)strtoll(str.Buffer(), NULL, radix);
}
unsigned int StringToUInt(const String & str, int radix)
{
if (str.StartsWith("0x"))
return (unsigned int)strtoull(str.Buffer(), NULL, 16);
else
return (unsigned int)strtoull(str.Buffer(), NULL, radix);
}
double StringToDouble(const String & str)
{
return (double)strtod(str.Buffer(), NULL);
}
float StringToFloat(const String & str)
{
return strtof(str.Buffer(), NULL);
}
#if 0
String String::ReplaceAll(String src, String dst) const
{
String rs = *this;
int index = 0;
int srcLen = src.length;
int len = rs.length;
while ((index = rs.IndexOf(src, index)) != -1)
{
rs = rs.SubString(0, index) + dst + rs.SubString(index + srcLen, len - index - srcLen);
len = rs.length;
}
return rs;
}
#endif
String String::FromWString(const wchar_t * wstr)
{
#ifdef _WIN32
return Slang::Encoding::UTF16->ToString((const char*)wstr, (int)(wcslen(wstr) * sizeof(wchar_t)));
#else
return Slang::Encoding::UTF32->ToString((const char*)wstr, (int)(wcslen(wstr) * sizeof(wchar_t)));
#endif
}
String String::FromWString(const wchar_t * wstr, const wchar_t * wend)
{
#ifdef _WIN32
return Slang::Encoding::UTF16->ToString((const char*)wstr, (int)((wend - wstr) * sizeof(wchar_t)));
#else
return Slang::Encoding::UTF32->ToString((const char*)wstr, (int)((wend - wstr) * sizeof(wchar_t)));
#endif
}
String String::FromWChar(const wchar_t ch)
{
#ifdef _WIN32
return Slang::Encoding::UTF16->ToString((const char*)&ch, (int)(sizeof(wchar_t)));
#else
return Slang::Encoding::UTF32->ToString((const char*)&ch, (int)(sizeof(wchar_t)));
#endif
}
String String::FromUnicodePoint(unsigned int codePoint)
{
char buf[6];
int len = Slang::EncodeUnicodePointToUTF8(buf, (int)codePoint);
buf[len] = 0;
return String(buf);
}
OSString String::ToWString(UInt* outLength) const
{
if (!buffer)
{
return OSString();
}
else
{
List<char> buf;
Slang::Encoding::UTF16->GetBytes(buf, *this);
auto length = buf.Count() / sizeof(wchar_t);
if (outLength)
*outLength = length;
buf.Add(0);
buf.Add(0);
wchar_t* beginData = (wchar_t*)buf.Buffer();
wchar_t* endData = beginData + length;
buf.ReleaseBuffer();
return OSString(beginData, endData);
}
}
//
void String::ensureUniqueStorageWithCapacity(UInt requiredCapacity)
{
if (buffer && buffer->isUniquelyReferenced() && buffer->capacity >= requiredCapacity)
return;
UInt newCapacity = buffer ? 2*buffer->capacity : 16;
if (newCapacity < requiredCapacity)
{
newCapacity = requiredCapacity;
}
UInt length = getLength();
StringRepresentation* newRepresentation = StringRepresentation::createWithCapacityAndLength(newCapacity, length);
if (buffer)
{
memcpy(newRepresentation->getData(), buffer->getData(), length + 1);
}
buffer = newRepresentation;
}
char* String::prepareForAppend(UInt count)
{
auto oldLength = getLength();
auto newLength = oldLength + count;
ensureUniqueStorageWithCapacity(newLength);
return getData() + oldLength;
}
void String::append(const char* textBegin, char const* textEnd)
{
auto oldLength = getLength();
auto textLength = textEnd - textBegin;
auto newLength = oldLength + textLength;
ensureUniqueStorageWithCapacity(newLength);
memcpy(getData() + oldLength, textBegin, textLength);
getData()[newLength] = 0;
buffer->length = newLength;
}
void String::append(char const* str)
{
if (str)
{
append(str, str + strlen(str));
}
}
void String::append(char chr)
{
append(&chr, &chr + 1);
}
void String::append(String const& str)
{
if (!buffer)
{
buffer = str.buffer;
return;
}
append(str.begin(), str.end());
}
void String::append(StringSlice const& slice)
{
append(slice.begin(), slice.end());
}
void String::append(int value, int radix)
{
enum { kCount = 33 };
char* data = prepareForAppend(kCount);
auto count = IntToAscii(data, value, radix);
ReverseInternalAscii(data, count);
buffer->length += count;
}
void String::append(unsigned int value, int radix)
{
enum { kCount = 33 };
char* data = prepareForAppend(kCount);
auto count = IntToAscii(data, value, radix);
ReverseInternalAscii(data, count);
buffer->length += count;
}
void String::append(long long value, int radix)
{
enum { kCount = 65 };
char* data = prepareForAppend(kCount);
auto count = IntToAscii(data, value, radix);
ReverseInternalAscii(data, count);
buffer->length += count;
}
void String::append(float val, const char * format)
{
enum { kCount = 128 };
char* data = prepareForAppend(kCount);
sprintf_s(data, kCount, format, val);
buffer->length += strnlen_s(data, kCount);
}
void String::append(double val, const char * format)
{
enum { kCount = 128 };
char* data = prepareForAppend(kCount);
sprintf_s(data, kCount, format, val);
buffer->length += strnlen_s(data, kCount);
}
}
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