Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 154 insertions, 0 deletions

diff --git a/basic/inc/sbxform.hxx b/basic/inc/sbxform.hxx
new file mode 100644
index 000000000..c14d950a8
--- /dev/null
+++ b/basic/inc/sbxform.hxx
@@ -0,0 +1,154 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+
+// Implementation class for Basic command: Format$( d,formatStr )
+
+/*
+  Grammar of format string (a try):
+  -----------------------------------------------
+
+  format_string     := {\special_char} general_format | scientific_format {\special_char} {;format_string}
+  general_format    := {#[,]}{0[,]}[.{0}{#}]
+  scientific_format := {0}[.{0}{#}](e | E)(+ | -){#}{0}
+
+  percent_char      := '%'
+  special_char      := \char | + | - | ( | ) | $ | space_char
+  char              := all_ascii_chars
+  space_char        := ' '
+
+  {}    repeated multiple times (incl. zero times)
+  []    exactly one or zero times
+  ()    parenthesis, e.g. (e | E) means e or E times
+
+  Additional predefined formats for the format string:
+    "General Number"
+    "Currency"
+    "Fixed"
+    "Standard"
+    "Percent"
+    "Scientific"
+    "Yes/No"
+    "True/False"
+    "On/Off"
+
+ Note: invalid format string are ignored just as in VisualBasic, the output is
+       probably 'undefined'. ASCII letters are outputted directly.
+
+ Constraints in VisualBasic:
+    - the exponent (scientific syntax) has a maximum of three digits!
+
+ Constraints of new implementation:
+    - the '+' sign is not allowed as wildcard in the mantissa
+
+ TODO:
+    - Date formatting
+        Wildcards are: 'h', 'm', 's', 'y'
+        predefined String-Constants/Commands:
+            "AMPM", "Long Date", "Long Time"
+*/
+
+#include <rtl/ustring.hxx>
+#include <rtl/ustrbuf.hxx>
+
+class SbxBasicFormater {
+  public:
+    // Constructor takes signs for decimal point, thousand separation sign
+    // and necessary resource strings.
+    SbxBasicFormater( sal_Unicode _cDecPoint, sal_Unicode _cThousandSep,
+                      OUString _sOnStrg,
+                      OUString _sOffStrg,
+                      OUString _sYesStrg,
+                      OUString _sNoStrg,
+                      OUString _sTrueStrg,
+                      OUString _sFalseStrg,
+                      OUString _sCurrencyStrg,
+                      OUString _sCurrencyFormatStrg );
+
+    /* Basic command: Format$( number,format-string )
+
+       Parameter:
+        dNumber     : number to be formatted
+        sFormatStrg : the Format-String, e.g. ###0.0###
+
+       Return value:
+        String containing the formatted output
+    */
+    OUString  BasicFormat( double dNumber, const OUString& sFormatStrg );
+    static OUString BasicFormatNull( std::u16string_view sFormatStrg );
+
+    static  bool isBasicFormat( std::u16string_view sFormatStrg );
+
+  private:
+    static inline void ShiftString( OUStringBuffer& sStrg, sal_uInt16 nStartPos );
+    static void AppendDigit( OUStringBuffer& sStrg, short nDigit );
+    void   LeftShiftDecimalPoint( OUStringBuffer& sStrg );
+    void   StrRoundDigit( OUStringBuffer& sStrg, short nPos, bool& bOverflow );
+    void   StrRoundDigit( OUStringBuffer& sStrg, short nPos );
+    static void ParseBack( OUStringBuffer& sStrg, std::u16string_view sFormatStrg,
+                                       short nFormatPos );
+    // Methods for string conversion with sprintf():
+    void   InitScan( double _dNum );
+    void   InitExp( double _dNewExp );
+    short  GetDigitAtPosScan( short nPos, bool& bFoundFirstDigit );
+    short  GetDigitAtPosExpScan( double dNewExponent, short nPos,
+                                                  bool& bFoundFirstDigit );
+    short  GetDigitAtPosExpScan( short nPos, bool& bFoundFirstDigit );
+    static OUString GetPosFormatString( std::u16string_view sFormatStrg, bool & bFound );
+    static OUString GetNegFormatString( std::u16string_view sFormatStrg, bool & bFound );
+    static OUString Get0FormatString( std::u16string_view sFormatStrg, bool & bFound );
+    static OUString GetNullFormatString( std::u16string_view sFormatStrg, bool & bFound );
+    static void AnalyseFormatString( const OUString& sFormatStrg,
+                                                 short& nNoOfDigitsLeft, short& nNoOfDigitsRight,
+                                                 short& nNoOfOptionalDigitsLeft,
+                                                 short& nNoOfExponentDigits,
+                                                 short& nNoOfOptionalExponentDigits,
+                                                 bool& bPercent, bool& bCurrency, bool& bScientific,
+                                                 bool& bGenerateThousandSeparator,
+                                                 short& nMultipleThousandSeparators );
+    void   ScanFormatString( double dNumber, const OUString& sFormatStrg,
+                                              OUString& sReturnStrg, bool bCreateSign );
+
+    //*** Data ***
+    sal_Unicode cDecPoint;      // sign for the decimal point
+    sal_Unicode cThousandSep;   // sign for thousand delimiter
+    // Text for output:
+    OUString  sOnStrg;
+    OUString  sOffStrg;
+    OUString  sYesStrg;
+    OUString  sNoStrg;
+    OUString  sTrueStrg;
+    OUString  sFalseStrg;
+    OUString  sCurrencyStrg;
+    OUString  sCurrencyFormatStrg;
+
+    //*** temporary data for scan loop ***
+
+    // String containing the number in scientific format
+    OUString  sSciNumStrg;
+    // String containing the exponent of the number
+    OUString  sNumExpStrg;
+    double  dNum;           // the number that is scanned
+    short   nNumExp;        // the exponent of the number
+    short   nExpExp;        // the number of digits in the exponent
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */