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fpspreadsheet: Fixes encoding conversions for Excel 2 and 5 formats.
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@930 8e941d3f-bd1b-0410-a28a-d453659cc2b4
This commit is contained in:
sekelsenmat
507
components/fpspreadsheet/fpsconvencoding.pas
Normal file
507
components/fpspreadsheet/fpsconvencoding.pas
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@ -0,0 +1,507 @@
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{
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*****************************************************************************
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* *
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* This file is part of the Lazarus Component Library (LCL) *
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* *
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* See the file COPYING.modifiedLGPL.txt, included in this distribution, *
|
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* for details about the copyright. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
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* *
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*****************************************************************************
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}
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unit fpsconvencoding;
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{$mode objfpc}{$H+}
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//{$IFDEF WINDOWS}
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//{$WARNING Windows/Wine/ReactOS locale conversion is not fully supported yet. Sorry.}
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//{$ENDIF}
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interface
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//{$IFNDEF DisableIconv}
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//{$IFDEF UNIX}{$IF not defined(VER2_2_0) and not defined(VER2_2_2)}{$DEFINE HasIconvEnc}{$ENDIF}{$ENDIF}
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//{$ENDIF}
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uses
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SysUtils, Classes, dos
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{$IFDEF HasIconvEnc},iconvenc{$ENDIF};
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const
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EncodingUTF8 = 'utf8';
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EncodingAnsi = 'ansi';
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EncodingUTF8BOM = 'utf8bom'; // UTF-8 with byte order mark
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EncodingUCS2LE = 'ucs2le'; // UCS 2 byte little endian
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EncodingUCS2BE = 'ucs2le'; // UCS 2 byte big endian
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type
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TConvertEncodingFunction = function(const s: string): string;
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TCharToUTF8Table = array[char] of PChar;
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TUnicodeToCharID = function(Unicode: cardinal): integer;
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var
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ConvertAnsiToUTF8: TConvertEncodingFunction = nil;
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ConvertUTF8ToAnsi: TConvertEncodingFunction = nil;
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function SingleByteToUTF8(const s: string; const Table: TCharToUTF8Table): string;
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function UTF8BOMToUTF8(const s: string): string; // UTF8 with BOM
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function ISO_8859_1ToUTF8(const s: string): string; // central europe
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function UTF8ToSingleByte(const s: string;
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const UTF8CharConvFunc: TUnicodeToCharID): string;
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function UTF8ToISO_8859_1(const s: string): string; // central europe
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function UTF8CharacterToUnicode(p: PChar; out CharLen: integer): Cardinal;
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implementation
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const
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ArrayISO_8859_1ToUTF8: TCharToUTF8Table = (
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#0, // #0
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#1, // #1
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#2, // #2
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#3, // #3
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#4, // #4
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#5, // #5
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#6, // #6
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#7, // #7
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#8, // #8
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#9, // #9
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#10, // #10
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#11, // #11
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#12, // #12
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#13, // #13
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#14, // #14
|
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#15, // #15
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#16, // #16
|
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#17, // #17
|
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#18, // #18
|
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#19, // #19
|
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#20, // #20
|
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#21, // #21
|
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#22, // #22
|
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#23, // #23
|
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#24, // #24
|
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#25, // #25
|
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#26, // #26
|
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#27, // #27
|
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#28, // #28
|
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#29, // #29
|
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#30, // #30
|
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#31, // #31
|
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' ', // ' '
|
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'!', // '!'
|
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'"', // '"'
|
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'#', // '#'
|
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'$', // '$'
|
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'%', // '%'
|
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'&', // '&'
|
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'''', // ''''
|
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'(', // '('
|
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')', // ')'
|
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'*', // '*'
|
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'+', // '+'
|
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',', // ','
|
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'-', // '-'
|
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'.', // '.'
|
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'/', // '/'
|
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'0', // '0'
|
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'1', // '1'
|
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'2', // '2'
|
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'3', // '3'
|
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'4', // '4'
|
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'5', // '5'
|
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'6', // '6'
|
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'7', // '7'
|
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'8', // '8'
|
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'9', // '9'
|
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':', // ':'
|
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';', // ';'
|
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'<', // '<'
|
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'=', // '='
|
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'>', // '>'
|
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'?', // '?'
|
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'@', // '@'
|
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'A', // 'A'
|
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'B', // 'B'
|
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'C', // 'C'
|
||||
'D', // 'D'
|
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'E', // 'E'
|
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'F', // 'F'
|
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'G', // 'G'
|
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'H', // 'H'
|
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'I', // 'I'
|
||||
'J', // 'J'
|
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'K', // 'K'
|
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'L', // 'L'
|
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'M', // 'M'
|
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'N', // 'N'
|
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'O', // 'O'
|
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'P', // 'P'
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'Q', // 'Q'
|
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'R', // 'R'
|
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'S', // 'S'
|
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'T', // 'T'
|
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'U', // 'U'
|
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'V', // 'V'
|
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'W', // 'W'
|
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'X', // 'X'
|
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'Y', // 'Y'
|
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'Z', // 'Z'
|
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'[', // '['
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'\', // '\'
|
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']', // ']'
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'^', // '^'
|
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'_', // '_'
|
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'`', // '`'
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'a', // 'a'
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'b', // 'b'
|
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'c', // 'c'
|
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'd', // 'd'
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'e', // 'e'
|
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'f', // 'f'
|
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'g', // 'g'
|
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'h', // 'h'
|
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'i', // 'i'
|
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'j', // 'j'
|
||||
'k', // 'k'
|
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'l', // 'l'
|
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'm', // 'm'
|
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'n', // 'n'
|
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'o', // 'o'
|
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'p', // 'p'
|
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'q', // 'q'
|
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'r', // 'r'
|
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's', // 's'
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't', // 't'
|
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'u', // 'u'
|
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'v', // 'v'
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'w', // 'w'
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'x', // 'x'
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'y', // 'y'
|
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'z', // 'z'
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'{', // '{'
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'|', // '|'
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'}', // '}'
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'~', // '~'
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#127, // #127
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#194#128, // #128
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#194#129, // #129
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#194#130, // #130
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#194#131, // #131
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#194#132, // #132
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#194#133, // #133
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#194#134, // #134
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#194#135, // #135
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#194#136, // #136
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#194#137, // #137
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#194#138, // #138
|
||||
#194#139, // #139
|
||||
#194#140, // #140
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#194#141, // #141
|
||||
#194#142, // #142
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||||
#194#143, // #143
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||||
#194#144, // #144
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||||
#194#145, // #145
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#194#146, // #146
|
||||
#194#147, // #147
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||||
#194#148, // #148
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||||
#194#149, // #149
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||||
#194#150, // #150
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||||
#194#151, // #151
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||||
#194#152, // #152
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||||
#194#153, // #153
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||||
#194#154, // #154
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||||
#194#155, // #155
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||||
#194#156, // #156
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#194#157, // #157
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#194#158, // #158
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||||
#194#159, // #159
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#194#160, // #160
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#194#161, // #161
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#194#162, // #162
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#194#163, // #163
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#194#164, // #164
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#194#165, // #165
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#194#166, // #166
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#194#167, // #167
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#194#168, // #168
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#194#169, // #169
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#194#170, // #170
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#194#171, // #171
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||||
#194#172, // #172
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#194#173, // #173
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#194#174, // #174
|
||||
#194#175, // #175
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#194#176, // #176
|
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#194#177, // #177
|
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#194#178, // #178
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#194#179, // #179
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#194#180, // #180
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#194#181, // #181
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||||
#194#182, // #182
|
||||
#194#183, // #183
|
||||
#194#184, // #184
|
||||
#194#185, // #185
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||||
#194#186, // #186
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||||
#194#187, // #187
|
||||
#194#188, // #188
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||||
#194#189, // #189
|
||||
#194#190, // #190
|
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#194#191, // #191
|
||||
#195#128, // #192
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#195#129, // #193
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#195#130, // #194
|
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#195#131, // #195
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#195#132, // #196
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#195#133, // #197
|
||||
#195#134, // #198
|
||||
#195#135, // #199
|
||||
#195#136, // #200
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#195#137, // #201
|
||||
#195#138, // #202
|
||||
#195#139, // #203
|
||||
#195#140, // #204
|
||||
#195#141, // #205
|
||||
#195#142, // #206
|
||||
#195#143, // #207
|
||||
#195#144, // #208
|
||||
#195#145, // #209
|
||||
#195#146, // #210
|
||||
#195#147, // #211
|
||||
#195#148, // #212
|
||||
#195#149, // #213
|
||||
#195#150, // #214
|
||||
#195#151, // #215
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||||
#195#152, // #216
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||||
#195#153, // #217
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||||
#195#154, // #218
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||||
#195#155, // #219
|
||||
#195#156, // #220
|
||||
#195#157, // #221
|
||||
#195#158, // #222
|
||||
#195#159, // #223
|
||||
#195#160, // #224
|
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#195#161, // #225
|
||||
#195#162, // #226
|
||||
#195#163, // #227
|
||||
#195#164, // #228
|
||||
#195#165, // #229
|
||||
#195#166, // #230
|
||||
#195#167, // #231
|
||||
#195#168, // #232
|
||||
#195#169, // #233
|
||||
#195#170, // #234
|
||||
#195#171, // #235
|
||||
#195#172, // #236
|
||||
#195#173, // #237
|
||||
#195#174, // #238
|
||||
#195#175, // #239
|
||||
#195#176, // #240
|
||||
#195#177, // #241
|
||||
#195#178, // #242
|
||||
#195#179, // #243
|
||||
#195#180, // #244
|
||||
#195#181, // #245
|
||||
#195#182, // #246
|
||||
#195#183, // #247
|
||||
#195#184, // #248
|
||||
#195#185, // #249
|
||||
#195#186, // #250
|
||||
#195#187, // #251
|
||||
#195#188, // #252
|
||||
#195#189, // #253
|
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#195#190, // #254
|
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#195#191 // #255
|
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);
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|
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function UTF8BOMToUTF8(const s: string): string;
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||||
begin
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||||
Result:=copy(s,4,length(s));
|
||||
end;
|
||||
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function ISO_8859_1ToUTF8(const s: string): string;
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||||
begin
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||||
Result:=SingleByteToUTF8(s,ArrayISO_8859_1ToUTF8);
|
||||
end;
|
||||
|
||||
function SingleByteToUTF8(const s: string; const Table: TCharToUTF8Table
|
||||
): string;
|
||||
var
|
||||
len: Integer;
|
||||
i: Integer;
|
||||
Src: PChar;
|
||||
Dest: PChar;
|
||||
p: PChar;
|
||||
c: Char;
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||||
begin
|
||||
if s='' then begin
|
||||
Result:=s;
|
||||
exit;
|
||||
end;
|
||||
len:=length(s);
|
||||
SetLength(Result,len*4);// UTF-8 is at most 4 bytes
|
||||
Src:=PChar(s);
|
||||
Dest:=PChar(Result);
|
||||
for i:=1 to len do begin
|
||||
c:=Src^;
|
||||
inc(Src);
|
||||
if ord(c)<128 then begin
|
||||
Dest^:=c;
|
||||
inc(Dest);
|
||||
end else begin
|
||||
p:=Table[c];
|
||||
if p<>nil then begin
|
||||
while p^<>#0 do begin
|
||||
Dest^:=p^;
|
||||
inc(p);
|
||||
inc(Dest);
|
||||
end;
|
||||
end;
|
||||
end;
|
||||
end;
|
||||
SetLength(Result,PtrUInt(Dest)-PtrUInt(Result));
|
||||
end;
|
||||
|
||||
function UnicodeToISO_8859_1(Unicode: cardinal): integer;
|
||||
begin
|
||||
case Unicode of
|
||||
0..255: Result:=Unicode;
|
||||
else Result:=-1;
|
||||
end;
|
||||
end;
|
||||
|
||||
function UTF8ToUTF8BOM(const s: string): string;
|
||||
begin
|
||||
Result:=#$EF#$BB#$BF+s;
|
||||
end;
|
||||
|
||||
function UTF8ToISO_8859_1(const s: string): string;
|
||||
begin
|
||||
Result:=UTF8ToSingleByte(s,@UnicodeToISO_8859_1);
|
||||
end;
|
||||
|
||||
|
||||
function UTF8ToSingleByte(const s: string;
|
||||
const UTF8CharConvFunc: TUnicodeToCharID): string;
|
||||
var
|
||||
len: Integer;
|
||||
Src: PChar;
|
||||
Dest: PChar;
|
||||
c: Char;
|
||||
Unicode: LongWord;
|
||||
CharLen: integer;
|
||||
i: integer;
|
||||
begin
|
||||
if s='' then begin
|
||||
Result:='';
|
||||
exit;
|
||||
end;
|
||||
len:=length(s);
|
||||
SetLength(Result,len);
|
||||
Src:=PChar(s);
|
||||
Dest:=PChar(Result);
|
||||
while len>0 do begin
|
||||
c:=Src^;
|
||||
if c<#128 then begin
|
||||
Dest^:=c;
|
||||
inc(Dest);
|
||||
inc(Src);
|
||||
dec(len);
|
||||
end else begin
|
||||
Unicode:=UTF8CharacterToUnicode(Src,CharLen);
|
||||
inc(Src,CharLen);
|
||||
dec(len,CharLen);
|
||||
i:=UTF8CharConvFunc(Unicode);
|
||||
if i>=0 then begin
|
||||
Dest^:=chr(i);
|
||||
inc(Dest);
|
||||
end;
|
||||
end;
|
||||
end;
|
||||
SetLength(Result,Dest-PChar(Result));
|
||||
end;
|
||||
|
||||
|
||||
procedure GetSupportedEncodings(List: TStrings);
|
||||
begin
|
||||
List.Add('UTF-8');
|
||||
List.Add('UTF-8BOM');
|
||||
List.Add('Ansi');
|
||||
List.Add('CP1250');
|
||||
List.Add('CP1251');
|
||||
List.Add('CP1252');
|
||||
List.Add('CP1253');
|
||||
List.Add('CP1254');
|
||||
List.Add('CP1255');
|
||||
List.Add('CP1256');
|
||||
List.Add('CP1257');
|
||||
List.Add('CP1258');
|
||||
List.Add('CP866');
|
||||
List.Add('CP874');
|
||||
List.Add('ISO-8859-1');
|
||||
List.Add('KOI-8');
|
||||
List.Add('UCS-2LE');
|
||||
List.Add('UCS-2BE');
|
||||
end;
|
||||
|
||||
function UTF8CharacterToUnicode(p: PChar; out CharLen: integer): Cardinal;
|
||||
begin
|
||||
if p<>nil then begin
|
||||
if ord(p^)<%11000000 then begin
|
||||
// regular single byte character (#0 is a normal char, this is pascal ;)
|
||||
Result:=ord(p^);
|
||||
CharLen:=1;
|
||||
end
|
||||
else if ((ord(p^) and %11100000) = %11000000) then begin
|
||||
// could be double byte character
|
||||
if (ord(p[1]) and %11000000) = %10000000 then begin
|
||||
Result:=((ord(p^) and %00011111) shl 6)
|
||||
or (ord(p[1]) and %00111111);
|
||||
CharLen:=2;
|
||||
end else begin
|
||||
Result:=ord(p^);
|
||||
CharLen:=1;
|
||||
end;
|
||||
end
|
||||
else if ((ord(p^) and %11110000) = %11100000) then begin
|
||||
// could be triple byte character
|
||||
if ((ord(p[1]) and %11000000) = %10000000)
|
||||
and ((ord(p[2]) and %11000000) = %10000000) then begin
|
||||
Result:=((ord(p^) and %00011111) shl 12)
|
||||
or ((ord(p[1]) and %00111111) shl 6)
|
||||
or (ord(p[2]) and %00111111);
|
||||
CharLen:=3;
|
||||
end else begin
|
||||
Result:=ord(p^);
|
||||
CharLen:=1;
|
||||
end;
|
||||
end
|
||||
else if ((ord(p^) and %11111000) = %11110000) then begin
|
||||
// could be 4 byte character
|
||||
if ((ord(p[1]) and %11000000) = %10000000)
|
||||
and ((ord(p[2]) and %11000000) = %10000000)
|
||||
and ((ord(p[3]) and %11000000) = %10000000) then begin
|
||||
Result:=((ord(p^) and %00001111) shl 18)
|
||||
or ((ord(p[1]) and %00111111) shl 12)
|
||||
or ((ord(p[2]) and %00111111) shl 6)
|
||||
or (ord(p[3]) and %00111111);
|
||||
CharLen:=4;
|
||||
end else begin
|
||||
Result:=ord(p^);
|
||||
CharLen:=1;
|
||||
end;
|
||||
end
|
||||
else begin
|
||||
// invalid character
|
||||
Result:=ord(p^);
|
||||
CharLen:=1;
|
||||
end;
|
||||
end else begin
|
||||
Result:=0;
|
||||
CharLen:=0;
|
||||
end;
|
||||
end;
|
||||
|
||||
end.
|
||||
@ -450,7 +450,7 @@ begin
|
||||
|
||||
//cctFormula
|
||||
cctNumber: Result := FloatToStr(ACell^.NumberValue);
|
||||
cctUTF8String: Result := UTF8ToAnsi(ACell^.UTF8StringValue);
|
||||
cctUTF8String: Result := ACell^.UTF8StringValue;
|
||||
else
|
||||
Result := '';
|
||||
end;
|
||||
|
||||
@ -7,14 +7,14 @@
|
||||
<Version Value="8"/>
|
||||
<PathDelim Value="\"/>
|
||||
<SearchPaths>
|
||||
<OtherUnitFiles Value="C:\Programas\lazarus-ccr\components\fpspreadsheet\"/>
|
||||
<OtherUnitFiles Value="."/>
|
||||
<UnitOutputDirectory Value="lib\$(TargetCPU)-$(TargetOS)"/>
|
||||
</SearchPaths>
|
||||
<Other>
|
||||
<CompilerPath Value="$(CompPath)"/>
|
||||
</Other>
|
||||
</CompilerOptions>
|
||||
<Files Count="18">
|
||||
<Files Count="19">
|
||||
<Item1>
|
||||
<Filename Value="fpolestorage.pas"/>
|
||||
<UnitName Value="fpolestorage"/>
|
||||
@ -87,6 +87,10 @@
|
||||
<Filename Value="xlscommon.pas"/>
|
||||
<UnitName Value="xlscommon"/>
|
||||
</Item18>
|
||||
<Item19>
|
||||
<Filename Value="fpsconvencoding.pas"/>
|
||||
<UnitName Value="fpsconvencoding"/>
|
||||
</Item19>
|
||||
</Files>
|
||||
<Type Value="RunAndDesignTime"/>
|
||||
<RequiredPkgs Count="2">
|
||||
|
||||
@ -7,11 +7,11 @@ unit laz_fpspreadsheet;
|
||||
interface
|
||||
|
||||
uses
|
||||
fpolestorage, fpsallformats, fpsopendocument, fpspreadsheet, xlsbiff2,
|
||||
fpolestorage, fpsallformats, fpsopendocument, fpspreadsheet, xlsbiff2,
|
||||
xlsbiff5, xlsbiff8, xlsxooxml, fpsutils, fpszipper, uvirtuallayer_types,
|
||||
uvirtuallayer, uvirtuallayer_ole, uvirtuallayer_ole_helpers,
|
||||
uvirtuallayer_ole_types, uvirtuallayer_stream, fpolebasic, xlscommon,
|
||||
LazarusPackageIntf;
|
||||
fpsconvencoding, LazarusPackageIntf;
|
||||
|
||||
implementation
|
||||
|
||||
|
||||
@ -31,7 +31,7 @@ interface
|
||||
|
||||
uses
|
||||
Classes, SysUtils,
|
||||
fpspreadsheet, xlscommon, fpsutils;
|
||||
fpspreadsheet, xlscommon, fpsutils, fpsconvencoding;
|
||||
|
||||
type
|
||||
|
||||
@ -283,7 +283,7 @@ var
|
||||
begin
|
||||
if AValue = '' then Exit; // Writing an empty text doesn't work
|
||||
|
||||
AnsiText := UTF8ToAnsi(AValue);
|
||||
AnsiText := UTF8ToISO_8859_1(AValue);
|
||||
L := Length(AnsiText);
|
||||
|
||||
{ BIFF Record header }
|
||||
@ -400,7 +400,7 @@ begin
|
||||
AStrValue := AValue;
|
||||
|
||||
{ Save the data }
|
||||
FWorksheet.WriteUTF8Text(ARow, ACol, AnsiToUTF8(AStrValue));
|
||||
FWorksheet.WriteUTF8Text(ARow, ACol, ISO_8859_1ToUTF8(AStrValue));
|
||||
end;
|
||||
|
||||
procedure TsSpreadBIFF2Reader.ReadNumber(AStream: TStream);
|
||||
|
||||
@ -64,7 +64,7 @@ uses
|
||||
{$else}
|
||||
fpolestorage,
|
||||
{$endif}
|
||||
fpsutils;
|
||||
fpsutils, fpsconvencoding;
|
||||
|
||||
type
|
||||
|
||||
@ -457,7 +457,7 @@ var
|
||||
Len: Byte;
|
||||
LatinSheetName: string;
|
||||
begin
|
||||
LatinSheetName := UTF8ToAnsi(ASheetName); // Should actually be UTF-8 to Latin 1 ISO
|
||||
LatinSheetName := UTF8ToISO_8859_1(ASheetName);
|
||||
Len := Length(LatinSheetName);
|
||||
|
||||
{ BIFF Record header }
|
||||
@ -734,7 +734,7 @@ var
|
||||
L: Word;
|
||||
AnsiValue: ansistring;
|
||||
begin
|
||||
AnsiValue := UTF8ToAnsi(AValue);
|
||||
AnsiValue := UTF8ToISO_8859_1(AValue);
|
||||
if AnsiValue = '' then
|
||||
begin
|
||||
// Bad formatted UTF8String (maybe ANSI?)
|
||||
@ -1118,7 +1118,7 @@ begin
|
||||
AStream.ReadBuffer(AStrValue[1], L);
|
||||
|
||||
{ Save the data }
|
||||
FWorksheet.WriteUTF8Text(ARow, ACol, AnsiToUTF8(AStrValue));
|
||||
FWorksheet.WriteUTF8Text(ARow, ACol, ISO_8859_1ToUTF8(AStrValue));
|
||||
//Read formatting runs (not supported)
|
||||
B:=AStream.ReadByte;
|
||||
for L := 0 to B-1 do begin
|
||||
@ -1293,7 +1293,7 @@ begin
|
||||
AStrValue := AValue;
|
||||
|
||||
{ Save the data }
|
||||
FWorksheet.WriteUTF8Text(ARow, ACol, AnsiToUTF8(AStrValue));
|
||||
FWorksheet.WriteUTF8Text(ARow, ACol, ISO_8859_1ToUTF8(AStrValue));
|
||||
end;
|
||||
|
||||
procedure TsSpreadBIFF5Reader.ReadNumber(AStream: TStream);
|
||||
|
||||
Reference in New Issue
Block a user