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-rw-r--r--basegfx/source/tools/stringconversiontools.cxx163
1 files changed, 163 insertions, 0 deletions
diff --git a/basegfx/source/tools/stringconversiontools.cxx b/basegfx/source/tools/stringconversiontools.cxx
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+++ b/basegfx/source/tools/stringconversiontools.cxx
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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 <stringconversiontools.hxx>
+#include <rtl/math.hxx>
+
+namespace basegfx::internal
+{
+ void skipSpaces(sal_Int32& io_rPos,
+ std::u16string_view rStr,
+ const sal_Int32 nLen)
+ {
+ while( io_rPos < nLen &&
+ rStr[io_rPos] == ' ' )
+ {
+ ++io_rPos;
+ }
+ }
+
+ static void skipSpacesAndCommas(sal_Int32& io_rPos,
+ std::u16string_view rStr,
+ const sal_Int32 nLen)
+ {
+ while(io_rPos < nLen
+ && (rStr[io_rPos] == ' ' || rStr[io_rPos] == ','))
+ {
+ ++io_rPos;
+ }
+ }
+
+ static bool getDoubleChar(double& o_fRetval,
+ sal_Int32& io_rPos,
+ std::u16string_view rStr)
+ {
+ const sal_Int64 nStrSize = rStr.size();
+ sal_Unicode aChar = io_rPos < nStrSize ? rStr[io_rPos] : 0;
+ OUStringBuffer sNumberString;
+
+ // sign
+ if(aChar == '+' || aChar == '-')
+ {
+ sNumberString.append(rStr[io_rPos]);
+ aChar = rStr[++io_rPos];
+ }
+
+ // numbers before point
+ while('0' <= aChar && '9' >= aChar)
+ {
+ sNumberString.append(rStr[io_rPos]);
+ io_rPos++;
+ aChar = io_rPos < nStrSize ? rStr[io_rPos] : 0;
+ }
+
+ // point
+ if(aChar == '.')
+ {
+ sNumberString.append(rStr[io_rPos]);
+ io_rPos++;
+ aChar = io_rPos < nStrSize ? rStr[io_rPos] : 0;
+ }
+
+ // numbers after point
+ while ('0' <= aChar && '9' >= aChar)
+ {
+ sNumberString.append(rStr[io_rPos]);
+ io_rPos++;
+ aChar = io_rPos < nStrSize ? rStr[io_rPos] : 0;
+ }
+
+ // 'e'
+ if(aChar == 'e' || aChar == 'E')
+ {
+ sNumberString.append(rStr[io_rPos]);
+ io_rPos++;
+ aChar = io_rPos < nStrSize ? rStr[io_rPos] : 0;
+
+ // sign for 'e'
+ if(aChar == '+' || aChar == '-')
+ {
+ sNumberString.append(rStr[io_rPos]);
+ io_rPos++;
+ aChar = io_rPos < nStrSize ? rStr[io_rPos] : 0;
+ }
+
+ // number for 'e'
+ while('0' <= aChar && '9' >= aChar)
+ {
+ sNumberString.append(rStr[io_rPos]);
+ io_rPos++;
+ aChar = io_rPos < nStrSize ? rStr[io_rPos] : 0;
+ }
+ }
+
+ if(sNumberString.getLength())
+ {
+ rtl_math_ConversionStatus eStatus;
+ o_fRetval = ::rtl::math::stringToDouble( sNumberString,
+ '.',
+ ',',
+ &eStatus );
+ return ( eStatus == rtl_math_ConversionStatus_Ok );
+ }
+
+ return false;
+ }
+
+ bool importDoubleAndSpaces(double& o_fRetval,
+ sal_Int32& io_rPos,
+ std::u16string_view rStr,
+ const sal_Int32 nLen )
+ {
+ if( !getDoubleChar(o_fRetval, io_rPos, rStr) )
+ return false;
+
+ skipSpacesAndCommas(io_rPos, rStr, nLen);
+
+ return true;
+ }
+
+ bool importFlagAndSpaces(sal_Int32& o_nRetval,
+ sal_Int32& io_rPos,
+ std::u16string_view rStr,
+ const sal_Int32 nLen)
+ {
+ sal_Unicode aChar( rStr[io_rPos] );
+
+ if(aChar == '0')
+ {
+ o_nRetval = 0;
+ ++io_rPos;
+ }
+ else if (aChar == '1')
+ {
+ o_nRetval = 1;
+ ++io_rPos;
+ }
+ else
+ return false;
+
+ skipSpacesAndCommas(io_rPos, rStr, nLen);
+
+ return true;
+ }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */