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Diffstat (limited to 'connectivity/source/drivers/file/FStringFunctions.cxx')
| -rw-r--r-- | connectivity/source/drivers/file/FStringFunctions.cxx | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/connectivity/source/drivers/file/FStringFunctions.cxx b/connectivity/source/drivers/file/FStringFunctions.cxx new file mode 100644 index 000000000..94152bc5d --- /dev/null +++ b/connectivity/source/drivers/file/FStringFunctions.cxx @@ -0,0 +1,233 @@ +/* -*- 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 <file/FStringFunctions.hxx> + +#include <comphelper/string.hxx> +#include <rtl/ustrbuf.hxx> + +using namespace connectivity; +using namespace connectivity::file; + +ORowSetValue OOp_Upper::operate(const ORowSetValue& lhs) const +{ + if (lhs.isNull()) + return lhs; + + return lhs.getString().toAsciiUpperCase(); +} + +ORowSetValue OOp_Lower::operate(const ORowSetValue& lhs) const +{ + if (lhs.isNull()) + return lhs; + + return lhs.getString().toAsciiLowerCase(); +} + +ORowSetValue OOp_Ascii::operate(const ORowSetValue& lhs) const +{ + if (lhs.isNull()) + return lhs; + OString sStr(OUStringToOString(lhs.getString(), RTL_TEXTENCODING_ASCII_US)); + sal_Int32 nAscii = sStr.toChar(); + return nAscii; +} + +ORowSetValue OOp_CharLength::operate(const ORowSetValue& lhs) const +{ + if (lhs.isNull()) + return lhs; + + return lhs.getString().getLength(); +} + +ORowSetValue OOp_Char::operate(const std::vector<ORowSetValue>& lhs) const +{ + if (lhs.empty()) + return ORowSetValue(); + + OUStringBuffer sRet(static_cast<sal_Int32>(lhs.size())); + std::vector<ORowSetValue>::const_reverse_iterator aIter = lhs.rbegin(); + std::vector<ORowSetValue>::const_reverse_iterator aEnd = lhs.rend(); + for (; aIter != aEnd; ++aIter) + { + if (!aIter->isNull()) + { + char c = static_cast<char>(aIter->getInt32()); + + sRet.appendAscii(&c, 1); + } + } + + return sRet.makeStringAndClear(); +} + +ORowSetValue OOp_Concat::operate(const std::vector<ORowSetValue>& lhs) const +{ + if (lhs.empty()) + return ORowSetValue(); + + OUStringBuffer sRet; + std::vector<ORowSetValue>::const_reverse_iterator aIter = lhs.rbegin(); + std::vector<ORowSetValue>::const_reverse_iterator aEnd = lhs.rend(); + for (; aIter != aEnd; ++aIter) + { + if (aIter->isNull()) + return ORowSetValue(); + + sRet.append(aIter->getString()); + } + + return sRet.makeStringAndClear(); +} + +ORowSetValue OOp_Locate::operate(const std::vector<ORowSetValue>& lhs) const +{ + if (std::any_of(lhs.begin(), lhs.end(), + [](const ORowSetValue& rValue) { return rValue.isNull(); })) + return ORowSetValue(); + + if (lhs.size() == 2) + return OUString(OUString::number(lhs[0].getString().indexOf(lhs[1].getString()) + 1)); + + else if (lhs.size() != 3) + return ORowSetValue(); + + return lhs[1].getString().indexOf(lhs[2].getString(), lhs[0].getInt32()) + 1; +} + +ORowSetValue OOp_SubString::operate(const std::vector<ORowSetValue>& lhs) const +{ + if (std::any_of(lhs.begin(), lhs.end(), + [](const ORowSetValue& rValue) { return rValue.isNull(); })) + return ORowSetValue(); + + if (lhs.size() == 2 && lhs[0].getInt32() >= sal_Int32(0)) + return lhs[1].getString().copy(lhs[0].getInt32() - 1); + + else if (lhs.size() != 3 || lhs[1].getInt32() < sal_Int32(0)) + return ORowSetValue(); + + return lhs[2].getString().copy(lhs[1].getInt32() - 1, lhs[0].getInt32()); +} + +ORowSetValue OOp_LTrim::operate(const ORowSetValue& lhs) const +{ + if (lhs.isNull()) + return lhs; + + OUString sRet = lhs.getString(); + OUString sNew = sRet.trim(); + return sRet.copy(sRet.indexOf(sNew)); +} + +ORowSetValue OOp_RTrim::operate(const ORowSetValue& lhs) const +{ + if (lhs.isNull()) + return lhs; + + OUString sRet = lhs.getString(); + OUString sNew = sRet.trim(); + return sRet.copy(0, sRet.lastIndexOf(sNew[sNew.getLength() - 1]) + 1); +} + +ORowSetValue OOp_Space::operate(const ORowSetValue& lhs) const +{ + if (lhs.isNull()) + return lhs; + + sal_Int32 nCount = std::max(lhs.getInt32(), sal_Int32(0)); + OUStringBuffer sRet(nCount); + comphelper::string::padToLength(sRet, nCount, ' '); + return sRet.makeStringAndClear(); +} + +ORowSetValue OOp_Replace::operate(const std::vector<ORowSetValue>& lhs) const +{ + if (lhs.size() != 3) + return ORowSetValue(); + + OUString sStr = lhs[2].getString(); + OUString sFrom = lhs[1].getString(); + OUString sTo = lhs[0].getString(); + sal_Int32 nIndexOf = sStr.indexOf(sFrom); + while (nIndexOf != -1) + { + sStr = sStr.replaceAt(nIndexOf, sFrom.getLength(), sTo); + nIndexOf = sStr.indexOf(sFrom, nIndexOf + sTo.getLength()); + } + + return sStr; +} + +ORowSetValue OOp_Repeat::operate(const ORowSetValue& lhs, const ORowSetValue& rhs) const +{ + if (lhs.isNull() || rhs.isNull()) + return lhs; + + const OUString s = lhs.getString(); + const sal_Int32 nCount = std::max(rhs.getInt32(), sal_Int32(0)); + OUStringBuffer sRet(s.getLength() * nCount); + for (sal_Int32 i = 0; i < nCount; ++i) + { + sRet.append(s); + } + return sRet.makeStringAndClear(); +} + +ORowSetValue OOp_Insert::operate(const std::vector<ORowSetValue>& lhs) const +{ + if (lhs.size() != 4) + return ORowSetValue(); + + OUString sStr = lhs[3].getString(); + + sal_Int32 nStart = lhs[2].getInt32(); + if (nStart < 1) + nStart = 1; + return sStr.replaceAt(nStart - 1, lhs[1].getInt32(), lhs[0].getString()); +} + +ORowSetValue OOp_Left::operate(const ORowSetValue& lhs, const ORowSetValue& rhs) const +{ + if (lhs.isNull() || rhs.isNull()) + return lhs; + + OUString sRet = lhs.getString(); + sal_Int32 nCount = rhs.getInt32(); + if (nCount < 0) + return ORowSetValue(); + return sRet.copy(0, nCount); +} + +ORowSetValue OOp_Right::operate(const ORowSetValue& lhs, const ORowSetValue& rhs) const +{ + if (lhs.isNull() || rhs.isNull()) + return lhs; + + sal_Int32 nCount = rhs.getInt32(); + OUString sRet = lhs.getString(); + if (nCount < 0 || nCount >= sRet.getLength()) + return ORowSetValue(); + + return sRet.copy(sRet.getLength() - nCount, nCount); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |