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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/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <comphelper/string.hxx>
#include <comphelper/processfactory.hxx>
#include <connectivity/dbexception.hxx>
#include <sal/log.hxx>
#include "utils.hxx"
using namespace dbahsql;
namespace
{
int getHexValue(sal_Unicode c)
{
if (c >= '0' && c <= '9')
{
return c - '0';
}
else if (c >= 'A' && c <= 'F')
{
return c - 'A' + 10;
}
else if (c >= 'a' && c <= 'f')
{
return c - 'a' + 10;
}
else
{
return -1;
}
}
} // unnamed namespace
//Convert ascii escaped unicode to utf-8
OUString utils::convertToUTF8(std::string_view original)
{
OUString res = OStringToOUString(original, RTL_TEXTENCODING_UTF8);
for (sal_Int32 i = 0;;)
{
i = res.indexOf("\\u", i);
if (i == -1)
{
break;
}
i += 2;
if (res.getLength() - i >= 4)
{
bool escape = true;
sal_Unicode c = 0;
for (sal_Int32 j = 0; j != 4; ++j)
{
auto const n = getHexValue(res[i + j]);
if (n == -1)
{
escape = false;
break;
}
c = (c << 4) | n;
}
if (escape)
{
i -= 2;
res = res.replaceAt(i, 6, rtl::OUStringChar(c));
++i;
}
}
}
return res;
}
OUString utils::getTableNameFromStmt(std::u16string_view sSql)
{
auto stmtComponents = comphelper::string::split(sSql, sal_Unicode(u' '));
assert(stmtComponents.size() > 2);
auto wordIter = stmtComponents.begin();
if (*wordIter == "CREATE" || *wordIter == "ALTER")
++wordIter;
if (*wordIter == "CACHED")
++wordIter;
if (*wordIter == "TABLE")
++wordIter;
// it may contain spaces if it's put into apostrophes.
if (wordIter->indexOf("\"") >= 0)
{
size_t nAposBegin = sSql.find('"');
size_t nAposEnd = nAposBegin;
bool bProperEndAposFound = false;
while (!bProperEndAposFound)
{
nAposEnd = sSql.find('"', nAposEnd + 1);
if (nAposEnd == std::u16string_view::npos)
{
SAL_WARN("dbaccess", "no matching \"");
return OUString();
}
if (sSql[nAposEnd - 1] != u'\\')
bProperEndAposFound = true;
}
std::u16string_view result = sSql.substr(nAposBegin, nAposEnd - nAposBegin + 1);
return OUString(result);
}
// next word is the table's name
// it might stuck together with the column definitions.
sal_Int32 nParenPos = wordIter->indexOf("(");
if (nParenPos > 0)
return wordIter->copy(0, nParenPos);
else
return *wordIter;
}
void utils::ensureFirebirdTableLength(std::u16string_view sName)
{
if (sName.size() > 30) // Firebird limitation
{
static constexpr OUStringLiteral NAME_TOO_LONG
= u"Firebird 3 doesn't support object (table, field) names "
"of more than 30 characters; please shorten your object "
"names in the original file and try again.";
dbtools::throwGenericSQLException(NAME_TOO_LONG,
::comphelper::getProcessComponentContext());
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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