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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#pragma once
#include <array>
#include <rtl/uuid.h>
#include <rtl/string.hxx>
#include <rtl/ustring.hxx>
#include <algorithm>
#include <stdio.h>
#include <cctype>
namespace tools
{
class Guid
{
private:
typedef std::array<sal_uInt8, 16> GuidArrayType;
GuidArrayType maGuidArray;
static sal_uInt8 gethex(char nChar)
{
if (nChar >= '0' && nChar <= '9')
return nChar - '0';
else if (nChar >= 'a' && nChar <= 'f')
return nChar - 'a' + 10;
else if (nChar >= 'A' && nChar <= 'F')
return nChar - 'A' + 10;
else
return 0;
}
static sal_uInt8 covertHexChar(char high, char low)
{
return (gethex(high) << 4) + gethex(low);
}
void parse(std::string_view rString)
{
if (rString.size() != 38)
return;
if (rString[0] != '{' || rString[37] != '}' || rString[9] != '-' || rString[14] != '-'
|| rString[19] != '-' || rString[24] != '-')
return;
for (size_t x = 1; x <= 8; x++)
if (!std::isxdigit(rString[x]))
return;
for (size_t x = 10; x <= 13; x++)
if (!std::isxdigit(rString[x]))
return;
for (size_t x = 15; x <= 18; x++)
if (!std::isxdigit(rString[x]))
return;
for (size_t x = 20; x <= 23; x++)
if (!std::isxdigit(rString[x]))
return;
for (size_t x = 25; x <= 36; x++)
if (!std::isxdigit(rString[x]))
return;
maGuidArray[0] = covertHexChar(rString[1], rString[2]);
maGuidArray[1] = covertHexChar(rString[3], rString[4]);
maGuidArray[2] = covertHexChar(rString[5], rString[6]);
maGuidArray[3] = covertHexChar(rString[7], rString[8]);
maGuidArray[4] = covertHexChar(rString[10], rString[11]);
maGuidArray[5] = covertHexChar(rString[12], rString[13]);
maGuidArray[6] = covertHexChar(rString[15], rString[16]);
maGuidArray[7] = covertHexChar(rString[17], rString[18]);
maGuidArray[8] = covertHexChar(rString[20], rString[21]);
maGuidArray[9] = covertHexChar(rString[22], rString[23]);
maGuidArray[10] = covertHexChar(rString[25], rString[26]);
maGuidArray[11] = covertHexChar(rString[27], rString[28]);
maGuidArray[12] = covertHexChar(rString[29], rString[30]);
maGuidArray[13] = covertHexChar(rString[31], rString[32]);
maGuidArray[14] = covertHexChar(rString[33], rString[34]);
maGuidArray[15] = covertHexChar(rString[35], rString[36]);
}
public:
/// GenerateTag is used as a flag for generating the GUID
enum GenerateTag
{
Generate = 0
};
/// Constructor which generates the GUID
Guid(enum GenerateTag) { rtl_createUuid(maGuidArray.data(), nullptr, false); }
/// Default constructor which initializes the values to 0 (empty GUID)
Guid() { maGuidArray.fill(0); }
/// parse the GUID from the string
Guid(std::string_view rString)
{
maGuidArray.fill(0);
parse(rString);
}
/// set the GUID from an array
Guid(const sal_uInt8 aGuidArray[16])
{
std::copy(aGuidArray, aGuidArray + 16, maGuidArray.begin());
}
Guid(Guid&&) = delete;
Guid(Guid const& rOther) { *this = rOther; }
void operator=(Guid const& rOther) { std::copy(rOther.cbegin(), rOther.cend(), begin()); }
bool isEmpty() { return *std::max_element(maGuidArray.begin(), maGuidArray.end()) == 0; }
GuidArrayType::iterator begin() { return maGuidArray.begin(); }
GuidArrayType::iterator end() { return maGuidArray.end(); }
GuidArrayType::const_iterator cbegin() const { return maGuidArray.cbegin(); }
GuidArrayType::const_iterator cend() const { return maGuidArray.cend(); }
OString getString() const
{
char sBuffer[40];
snprintf(sBuffer, sizeof(sBuffer),
"{%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X}",
maGuidArray[0], maGuidArray[1], maGuidArray[2], maGuidArray[3], maGuidArray[4],
maGuidArray[5], maGuidArray[6], maGuidArray[7], maGuidArray[8], maGuidArray[9],
maGuidArray[10], maGuidArray[11], maGuidArray[12], maGuidArray[13],
maGuidArray[14], maGuidArray[15]);
return OString(sBuffer);
}
OUString getOUString() { return OStringToOUString(getString(), RTL_TEXTENCODING_ASCII_US); }
bool operator==(Guid const& rCompare) const
{
return rtl_compareUuid(maGuidArray.data(), rCompare.maGuidArray.data()) == 0;
}
bool operator!=(Guid const& rCompare) const { return !(*this == rCompare); }
};
template <typename charT, typename traits>
inline std::basic_ostream<charT, traits>& operator<<(std::basic_ostream<charT, traits>& rStream,
tools::Guid const& rGuid)
{
OString aString = rGuid.getString();
rStream << "GUID" << aString.getStr();
return rStream;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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