1 files changed, 163 insertions, 0 deletions
diff --git a/basegfx/source/tools/stringconversiontools.cxx b/basegfx/source/tools/stringconversiontools.cxx
new file mode 100644
index 000000000..3a671ae53
--- /dev/null
+++ b/basegfx/source/tools/stringconversiontools.cxx
@@ -0,0 +1,163 @@
+/* -*- 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: */