| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| // MARKER(update_precomp.py): autogen include statement, do not remove |
| #include "precompiled_sc.hxx" |
| |
| // System - Includes ----------------------------------------------------- |
| |
| #include "stringutil.hxx" |
| #include "rtl/ustrbuf.hxx" |
| #include "rtl/math.hxx" |
| |
| using ::rtl::OUString; |
| using ::rtl::OUStringBuffer; |
| |
| bool ScStringUtil::parseSimpleNumber( |
| const OUString& rStr, sal_Unicode dsep, sal_Unicode gsep, double& rVal) |
| { |
| if (gsep == 0x00A0) |
| // unicode space to ascii space |
| gsep = 0x0020; |
| |
| OUStringBuffer aBuf; |
| sal_Int32 n = rStr.getLength(); |
| const sal_Unicode* p = rStr.getStr(); |
| sal_Int32 nPosDSep = -1, nPosGSep = -1; |
| sal_uInt32 nDigitCount = 0; |
| |
| for (sal_Int32 i = 0; i < n; ++i) |
| { |
| sal_Unicode c = p[i]; |
| if (c == 0x00A0) |
| // unicode space to ascii space |
| c = 0x0020; |
| |
| if (sal_Unicode('0') <= c && c <= sal_Unicode('9')) |
| { |
| // this is a digit. |
| aBuf.append(c); |
| ++nDigitCount; |
| } |
| else if (c == dsep) |
| { |
| // this is a decimal separator. |
| |
| if (nPosDSep >= 0) |
| // a second decimal separator -> not a valid number. |
| return false; |
| |
| if (nPosGSep >= 0 && i - nPosGSep != 4) |
| // the number has a group separator and the decimal sep is not |
| // positioned correctly. |
| return false; |
| |
| nPosDSep = i; |
| nPosGSep = -1; |
| aBuf.append(c); |
| nDigitCount = 0; |
| } |
| else if (c == gsep) |
| { |
| // this is a group (thousand) separator. |
| |
| if (i == 0) |
| // not allowed as the first character. |
| return false; |
| |
| if (nPosDSep >= 0) |
| // not allowed after the decimal separator. |
| return false; |
| |
| if (nPosGSep >= 0 && nDigitCount != 3) |
| // must be exactly 3 digits since the last group separator. |
| return false; |
| |
| nPosGSep = i; |
| nDigitCount = 0; |
| } |
| else if (c == sal_Unicode('-') || c == sal_Unicode('+')) |
| { |
| // A sign must be the first character if it's given. |
| if (i == 0) |
| aBuf.append(c); |
| else |
| return false; |
| } |
| else |
| return false; |
| } |
| |
| // finished parsing the number. |
| |
| if (nPosGSep >= 0 && nDigitCount != 3) |
| // must be exactly 3 digits since the last group separator. |
| return false; |
| |
| rtl_math_ConversionStatus eStatus = rtl_math_ConversionStatus_Ok; |
| sal_Int32 nParseEnd = 0; |
| rVal = ::rtl::math::stringToDouble(aBuf.makeStringAndClear(), dsep, gsep, &eStatus, &nParseEnd); |
| if (eStatus != rtl_math_ConversionStatus_Ok) |
| return false; |
| |
| return true; |
| } |