LCOV - code coverage report
Current view: top level - include/basic - sbxform.hxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 0 1 0.0 %
Date: 2014-04-14 Functions: 0 1 0.0 %
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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_BASIC_SBXFORM_HXX
      21             : #define INCLUDED_BASIC_SBXFORM_HXX
      22             : 
      23             : 
      24             : // Implementation class for Basic command: Format$( d,formatStr )
      25             : 
      26             : /*
      27             :   Grammar of format string (a try):
      28             :   -----------------------------------------------
      29             : 
      30             :   format_string     := {\special_char} general_format | scientific_format {\special_char} {;format_string}
      31             :   general_format    := {#[,]}{0[,]}[.{0}{#}]
      32             :   scientific_format := {0}[.{0}{#}](e | E)(+ | -){#}{0}
      33             : 
      34             :   percent_char      := '%'
      35             :   special_char      := \char | + | - | ( | ) | $ | space_char
      36             :   char              := all_ascii_chars
      37             :   space_char        := ' '
      38             : 
      39             :   {}    repeated multiple times (incl. zero times)
      40             :   []    exactly one or zero times
      41             :   ()    parenthesis, e.g. (e | E) means e or E times
      42             : 
      43             :   Additional predefined formats for the format string:
      44             :     "General Number"
      45             :     "Currency"
      46             :     "Fixed"
      47             :     "Standard"
      48             :     "Percent"
      49             :     "Scientific"
      50             :     "Yes/No"
      51             :     "True/False"
      52             :     "On/Off"
      53             : 
      54             :  Note: invalid format string are ignored just as in VisualBasic, the output is
      55             :        probably 'undefined'. ASCII letters are outputted directly.
      56             : 
      57             :  Constraints in VisualBasic:
      58             :     - the exponent (scientific syntax) has a maximum of three digits!
      59             : 
      60             :  Constraints of new implementation:
      61             :     - the '+' sign is not allowed as wildcard in the mantissa
      62             : 
      63             :  TODO:
      64             :     - Date formatting
      65             :         Wildcards are: 'h', 'm', 's', 'y'
      66             :         predefined String-Constants/Commands:
      67             :             "AMPM", "Long Date", "Long Time"
      68             : */
      69             : 
      70             : /*
      71             :   There are two possibilities to get the number of digits of a number:
      72             : 
      73             :         a) use sprintf()
      74             :         b) use log10() and pow() digit
      75             : */
      76             : #define _with_sprintf   // use a)
      77             : 
      78             : #include <rtl/ustring.hxx>
      79             : #include <rtl/ustrbuf.hxx>
      80             : #include <basic/basicdllapi.h>
      81             : 
      82           0 : class BASIC_DLLPUBLIC SbxBasicFormater {
      83             :   public:
      84             :     // Constructor takes signs for decimal point, thousand separation sign
      85             :     // and necessary resource strings.
      86             :     SbxBasicFormater( sal_Unicode _cDecPoint, sal_Unicode _cThousandSep,
      87             :                       const OUString& _sOnStrg,
      88             :                       const OUString& _sOffStrg,
      89             :                       const OUString& _sYesStrg,
      90             :                       const OUString& _sNoStrg,
      91             :                       const OUString& _sTrueStrg,
      92             :                       const OUString& _sFalseStrg,
      93             :                       const OUString& _sCurrencyStrg,
      94             :                       const OUString& _sCurrencyFormatStrg );
      95             : 
      96             :     /* Basic command: Format$( number,format-string )
      97             : 
      98             :        Parameter:
      99             :         dNumber     : number to be formated
     100             :         sFormatStrg : the Format-String, e.g. ###0.0###
     101             : 
     102             :        Return value:
     103             :         String containing the formatted output
     104             :     */
     105             :     OUString  BasicFormat( double dNumber, const OUString& sFormatStrg );
     106             :     OUString  BasicFormatNull( const OUString& sFormatStrg );
     107             : 
     108             :     static  bool isBasicFormat( const OUString& sFormatStrg );
     109             : 
     110             :   private:
     111             :     BASIC_DLLPRIVATE inline void ShiftString( OUStringBuffer& sStrg, sal_uInt16 nStartPos );
     112             :     BASIC_DLLPRIVATE void   AppendDigit( OUStringBuffer& sStrg, short nDigit );
     113             :     BASIC_DLLPRIVATE void   LeftShiftDecimalPoint( OUStringBuffer& sStrg );
     114             :     BASIC_DLLPRIVATE void   StrRoundDigit( OUStringBuffer& sStrg, short nPos, bool& bOverflow );
     115             :     BASIC_DLLPRIVATE void   StrRoundDigit( OUStringBuffer& sStrg, short nPos );
     116             :     BASIC_DLLPRIVATE void   ParseBack( OUStringBuffer& sStrg, const OUString& sFormatStrg,
     117             :                                        short nFormatPos );
     118             : #ifdef _with_sprintf
     119             :     // Methods for string conversion with sprintf():
     120             :     BASIC_DLLPRIVATE void   InitScan( double _dNum );
     121             :     BASIC_DLLPRIVATE void   InitExp( double _dNewExp );
     122             :     BASIC_DLLPRIVATE short  GetDigitAtPosScan( short nPos, bool& bFoundFirstDigit );
     123             :     BASIC_DLLPRIVATE short  GetDigitAtPosExpScan( double dNewExponent, short nPos,
     124             :                                                   bool& bFoundFirstDigit );
     125             :     BASIC_DLLPRIVATE short  GetDigitAtPosExpScan( short nPos, bool& bFoundFirstDigit );
     126             : #else
     127             :     // Methods for direct 'calculation' with log10() and pow():
     128             :     BASIC_DLLPRIVATE short  GetDigitAtPos( double dNumber, short nPos, double& dNextNumber,
     129             :                                            bool& bFoundFirstDigit );
     130             :     BASIC_DLLPRIVATE short  RoundDigit( double dNumber );
     131             : #endif
     132             :     BASIC_DLLPRIVATE OUString GetPosFormatString( const OUString& sFormatStrg, bool & bFound );
     133             :     BASIC_DLLPRIVATE OUString GetNegFormatString( const OUString& sFormatStrg, bool & bFound );
     134             :     BASIC_DLLPRIVATE OUString Get0FormatString( const OUString& sFormatStrg, bool & bFound );
     135             :     BASIC_DLLPRIVATE OUString GetNullFormatString( const OUString& sFormatStrg, bool & bFound );
     136             :     BASIC_DLLPRIVATE short  AnalyseFormatString( const OUString& sFormatStrg,
     137             :                                                  short& nNoOfDigitsLeft, short& nNoOfDigitsRight,
     138             :                                                  short& nNoOfOptionalDigitsLeft,
     139             :                                                  short& nNoOfExponentDigits,
     140             :                                                  short& nNoOfOptionalExponentDigits,
     141             :                                                  bool& bPercent, bool& bCurrency, bool& bScientific,
     142             :                                                  bool& bGenerateThousandSeparator,
     143             :                                                  short& nMultipleThousandSeparators );
     144             :     BASIC_DLLPRIVATE void   ScanFormatString( double dNumber, const OUString& sFormatStrg,
     145             :                                               OUString& sReturnStrg, bool bCreateSign );
     146             : 
     147             :     //*** Data ***
     148             :     sal_Unicode cDecPoint;      // sign for the decimal point
     149             :     sal_Unicode cThousandSep;   // sign for thousand delimiter
     150             :     // Text for output:
     151             :     OUString  sOnStrg;
     152             :     OUString  sOffStrg;
     153             :     OUString  sYesStrg;
     154             :     OUString  sNoStrg;
     155             :     OUString  sTrueStrg;
     156             :     OUString  sFalseStrg;
     157             :     OUString  sCurrencyStrg;
     158             :     OUString  sCurrencyFormatStrg;
     159             : 
     160             :     //*** temporary data for scan loop ***
     161             : 
     162             :     // String containing the number in scientific format
     163             :     OUString  sSciNumStrg;
     164             :     // String containing the exponent of the number
     165             :     OUString  sNumExpStrg;
     166             :     double  dNum;           // the number that is scanned
     167             :     short   nNumExp;        // the exponent of the number
     168             :     short   nExpExp;        // the number of digits in the exponent
     169             : };
     170             : 
     171             : #endif
     172             : 
     173             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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