df848de345
git-svn-id: https://svn.code.sf.net/p/synalist/code/trunk@49 7c85be65-684b-0410-a082-b2ed4fbef004
1192 lines
41 KiB
ObjectPascal
1192 lines
41 KiB
ObjectPascal
{==============================================================================|
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| Project : Delphree - Synapse | 003.001.000 |
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|==============================================================================|
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| Content: Charset conversion support |
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|==============================================================================|
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| The contents of this file are subject to the Mozilla Public License Ver. 1.1 |
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| (the "License"); you may not use this file except in compliance with the |
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| License. You may obtain a Copy of the License at http://www.mozilla.org/MPL/ |
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| |
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| Software distributed under the License is distributed on an "AS IS" basis, |
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| WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for |
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| the specific language governing rights and limitations under the License. |
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|==============================================================================|
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| The Original Code is Synapse Delphi Library. |
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|==============================================================================|
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| The Initial Developer of the Original Code is Lukas Gebauer (Czech Republic).|
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| Portions created by Lukas Gebauer are Copyright (c)2000,2001. |
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| All Rights Reserved. |
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|==============================================================================|
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| Contributor(s): |
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|==============================================================================|
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| History: see HISTORY.HTM from distribution package |
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| (Found at URL: http://www.ararat.cz/synapse/) |
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|==============================================================================}
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{$Q-}
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{$WEAKPACKAGEUNIT ON}
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unit SynaChar;
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interface
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type
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TMimeChar = (ISO_8859_1, ISO_8859_2, ISO_8859_3,
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ISO_8859_4, ISO_8859_5, ISO_8859_6, ISO_8859_7,
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ISO_8859_8, ISO_8859_9, ISO_8859_10, CP1250,
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CP1251, CP1252, CP1253, CP1254, CP1255, CP1256,
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CP1257, CP1258, KOI8_R, CP895, CP852,
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UCS_2, UCS_4, UTF_8, UTF_7);
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TMimeSetChar = set of TMimeChar;
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//character transcoding tables X to UCS-2
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{
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//dummy table
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$0080, $0081, $0082, $0083, $0084, $0085, $0086, $0087,
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$0088, $0089, $008A, $008B, $008C, $008D, $008E, $008F,
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$0090, $0091, $0092, $0093, $0094, $0095, $0096, $0097,
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$0098, $0099, $009A, $009B, $009C, $009D, $009E, $009F,
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$00A0, $00A1, $00A2, $00A3, $00A4, $00A5, $00A6, $00A7,
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$00A8, $00A9, $00AA, $00AB, $00AC, $00AD, $00AE, $00AF,
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$00B0, $00B1, $00B2, $00B3, $00B4, $00B5, $00B6, $00B7,
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$00B8, $00B9, $00BA, $00BB, $00BC, $00BD, $00BE, $00BF,
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$00C0, $00C1, $00C2, $00C3, $00C4, $00C5, $00C6, $00C7,
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$00C8, $00C9, $00CA, $00CB, $00CC, $00CD, $00CE, $00CF,
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$00D0, $00D1, $00D2, $00D3, $00D4, $00D5, $00D6, $00D7,
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$00D8, $00D9, $00DA, $00DB, $00DC, $00DD, $00DE, $00DF,
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$00E0, $00E1, $00E2, $00E3, $00E4, $00E5, $00E6, $00E7,
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$00E8, $00E9, $00EA, $00EB, $00EC, $00ED, $00EE, $00EF,
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$00F0, $00F1, $00F2, $00F3, $00F4, $00F5, $00F6, $00F7,
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$00F8, $00F9, $00FA, $00FB, $00FC, $00FD, $00FE, $00FF
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}
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const
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{Latin-1
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Danish, Dutch, English, Faeroese, Finnish, French, German, Icelandic,
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Irish, Italian, Norwegian, Portuguese, Spanish and Swedish.
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}
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CharISO_8859_1: array[128..255] of Word =
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(
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$0080, $0081, $0082, $0083, $0084, $0085, $0086, $0087,
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$0088, $0089, $008A, $008B, $008C, $008D, $008E, $008F,
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$0090, $0091, $0092, $0093, $0094, $0095, $0096, $0097,
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$0098, $0099, $009A, $009B, $009C, $009D, $009E, $009F,
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$00A0, $00A1, $00A2, $00A3, $00A4, $00A5, $00A6, $00A7,
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$00A8, $00A9, $00AA, $00AB, $00AC, $00AD, $00AE, $00AF,
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$00B0, $00B1, $00B2, $00B3, $00B4, $00B5, $00B6, $00B7,
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$00B8, $00B9, $00BA, $00BB, $00BC, $00BD, $00BE, $00BF,
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$00C0, $00C1, $00C2, $00C3, $00C4, $00C5, $00C6, $00C7,
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$00C8, $00C9, $00CA, $00CB, $00CC, $00CD, $00CE, $00CF,
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$00D0, $00D1, $00D2, $00D3, $00D4, $00D5, $00D6, $00D7,
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$00D8, $00D9, $00DA, $00DB, $00DC, $00DD, $00DE, $00DF,
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$00E0, $00E1, $00E2, $00E3, $00E4, $00E5, $00E6, $00E7,
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$00E8, $00E9, $00EA, $00EB, $00EC, $00ED, $00EE, $00EF,
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$00F0, $00F1, $00F2, $00F3, $00F4, $00F5, $00F6, $00F7,
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$00F8, $00F9, $00FA, $00FB, $00FC, $00FD, $00FE, $00FF
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);
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{Latin-2
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Albanian, Czech, English, German, Hungarian, Polish, Rumanian,
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Serbo-Croatian, Slovak, Slovene and Swedish.
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}
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CharISO_8859_2: array[128..255] of Word =
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(
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$0080, $0081, $0082, $0083, $0084, $0085, $0086, $0087,
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$0088, $0089, $008A, $008B, $008C, $008D, $008E, $008F,
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$0090, $0091, $0092, $0093, $0094, $0095, $0096, $0097,
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$0098, $0099, $009A, $009B, $009C, $009D, $009E, $009F,
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$00A0, $0104, $02D8, $0141, $00A4, $013D, $015A, $00A7,
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$00A8, $0160, $015E, $0164, $0179, $00AD, $017D, $017B,
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$00B0, $0105, $02DB, $0142, $00B4, $013E, $015B, $02C7,
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$00B8, $0161, $015F, $0165, $017A, $02DD, $017E, $017C,
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$0154, $00C1, $00C2, $0102, $00C4, $0139, $0106, $00C7,
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$010C, $00C9, $0118, $00CB, $011A, $00CD, $00CE, $010E,
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$0110, $0143, $0147, $00D3, $00D4, $0150, $00D6, $00D7,
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$0158, $016E, $00DA, $0170, $00DC, $00DD, $0162, $00DF,
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$0155, $00E1, $00E2, $0103, $00E4, $013A, $0107, $00E7,
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$010D, $00E9, $0119, $00EB, $011B, $00ED, $00EE, $010F,
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$0111, $0144, $0148, $00F3, $00F4, $0151, $00F6, $00F7,
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$0159, $016F, $00FA, $0171, $00FC, $00FD, $0163, $02D9
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);
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{Latin-3
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Afrikaans, Catalan, English, Esperanto, French, Galician,
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German, Italian, Maltese and Turkish.
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}
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CharISO_8859_3: array[128..255] of Word =
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(
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$0080, $0081, $0082, $0083, $0084, $0085, $0086, $0087,
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$0088, $0089, $008A, $008B, $008C, $008D, $008E, $008F,
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$0090, $0091, $0092, $0093, $0094, $0095, $0096, $0097,
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$0098, $0099, $009A, $009B, $009C, $009D, $009E, $009F,
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$00A0, $0126, $02D8, $00A3, $00A4, $FFFD, $0124, $00A7,
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$00A8, $0130, $015E, $011E, $0134, $00AD, $FFFD, $017B,
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$00B0, $0127, $00B2, $00B3, $00B4, $00B5, $0125, $00B7,
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$00B8, $0131, $015F, $011F, $0135, $00BD, $FFFD, $017C,
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$00C0, $00C1, $00C2, $FFFD, $00C4, $010A, $0108, $00C7,
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$00C8, $00C9, $00CA, $00CB, $00CC, $00CD, $00CE, $00CF,
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$FFFD, $00D1, $00D2, $00D3, $00D4, $0120, $00D6, $00D7,
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$011C, $00D9, $00DA, $00DB, $00DC, $016C, $015C, $00DF,
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$00E0, $00E1, $00E2, $FFFD, $00E4, $010B, $0109, $00E7,
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$00E8, $00E9, $00EA, $00EB, $00EC, $00ED, $00EE, $00EF,
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$FFFD, $00F1, $00F2, $00F3, $00F4, $0121, $00F6, $00F7,
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$011D, $00F9, $00FA, $00FB, $00FC, $016D, $015D, $02D9
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);
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{Latin-4
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Danish, English, Estonian, Finnish, German, Greenlandic,
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Lappish, Latvian, Lithuanian, Norwegian and Swedish.
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}
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CharISO_8859_4: array[128..255] of Word =
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(
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$0080, $0081, $0082, $0083, $0084, $0085, $0086, $0087,
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$0088, $0089, $008A, $008B, $008C, $008D, $008E, $008F,
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$0090, $0091, $0092, $0093, $0094, $0095, $0096, $0097,
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$0098, $0099, $009A, $009B, $009C, $009D, $009E, $009F,
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$00A0, $0104, $0138, $0156, $00A4, $0128, $013B, $00A7,
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$00A8, $0160, $0112, $0122, $0166, $00AD, $017D, $00AF,
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$00B0, $0105, $02DB, $0157, $00B4, $0129, $013C, $02C7,
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$00B8, $0161, $0113, $0123, $0167, $014A, $017E, $014B,
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$0100, $00C1, $00C2, $00C3, $00C4, $00C5, $00C6, $012E,
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$010C, $00C9, $0118, $00CB, $0116, $00CD, $00CE, $012A,
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$0110, $0145, $014C, $0136, $00D4, $00D5, $00D6, $00D7,
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$00D8, $0172, $00DA, $00DB, $00DC, $0168, $016A, $00DF,
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$0101, $00E1, $00E2, $00E3, $00E4, $00E5, $00E6, $012F,
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$010D, $00E9, $0119, $00EB, $0117, $00ED, $00EE, $012B,
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$0111, $0146, $014D, $0137, $00F4, $00F5, $00F6, $00F7,
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$00F8, $0173, $00FA, $00FB, $00FC, $0169, $016B, $02D9
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);
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{CYRILLIC
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Bulgarian, Bielorussian, English, Macedonian, Russian,
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Serbo-Croatian and Ukrainian.
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}
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CharISO_8859_5: array[128..255] of Word =
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(
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$0080, $0081, $0082, $0083, $0084, $0085, $0086, $0087,
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$0088, $0089, $008A, $008B, $008C, $008D, $008E, $008F,
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$0090, $0091, $0092, $0093, $0094, $0095, $0096, $0097,
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$0098, $0099, $009A, $009B, $009C, $009D, $009E, $009F,
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$00A0, $0401, $0402, $0403, $0404, $0405, $0406, $0407,
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$0408, $0409, $040A, $040B, $040C, $00AD, $040E, $040F,
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$0410, $0411, $0412, $0413, $0414, $0415, $0416, $0417,
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$0418, $0419, $041A, $041B, $041C, $041D, $041E, $041F,
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$0420, $0421, $0422, $0423, $0424, $0425, $0426, $0427,
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$0428, $0429, $042A, $042B, $042C, $042D, $042E, $042F,
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$0430, $0431, $0432, $0433, $0434, $0435, $0436, $0437,
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$0438, $0439, $043A, $043B, $043C, $043D, $043E, $043F,
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$0440, $0441, $0442, $0443, $0444, $0445, $0446, $0447,
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$0448, $0449, $044A, $044B, $044C, $044D, $044E, $044F,
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$2116, $0451, $0452, $0453, $0454, $0455, $0456, $0457,
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$0458, $0459, $045A, $045B, $045C, $00A7, $045E, $045F
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);
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{ARABIC
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}
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CharISO_8859_6: array[128..255] of Word =
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(
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$0080, $0081, $0082, $0083, $0084, $0085, $0086, $0087,
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$0088, $0089, $008A, $008B, $008C, $008D, $008E, $008F,
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$0090, $0091, $0092, $0093, $0094, $0095, $0096, $0097,
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$0098, $0099, $009A, $009B, $009C, $009D, $009E, $009F,
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$00A0, $FFFD, $FFFD, $FFFD, $00A4, $FFFD, $FFFD, $FFFD,
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$FFFD, $FFFD, $FFFD, $FFFD, $060C, $00AD, $FFFD, $FFFD,
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$FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD,
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$FFFD, $FFFD, $FFFD, $061B, $FFFD, $FFFD, $FFFD, $061F,
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$FFFD, $0621, $0622, $0623, $0624, $0625, $0626, $0627,
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$0628, $0629, $062A, $062B, $062C, $062D, $062E, $062F,
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$0630, $0631, $0632, $0633, $0634, $0635, $0636, $0637,
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$0638, $0639, $063A, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD,
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$0640, $0641, $0642, $0643, $0644, $0645, $0646, $0647,
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$0648, $0649, $064A, $064B, $064C, $064D, $064E, $064F,
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$0650, $0651, $0652, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD,
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$FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD
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);
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{GREEK
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}
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CharISO_8859_7: array[128..255] of Word =
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(
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$0080, $0081, $0082, $0083, $0084, $0085, $0086, $0087,
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$0088, $0089, $008A, $008B, $008C, $008D, $008E, $008F,
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$0090, $0091, $0092, $0093, $0094, $0095, $0096, $0097,
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$0098, $0099, $009A, $009B, $009C, $009D, $009E, $009F,
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$00A0, $2018, $2019, $00A3, $FFFD, $FFFD, $00A6, $00A7,
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$00A8, $00A9, $FFFD, $00AB, $00AC, $00AD, $FFFD, $2015,
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$00B0, $00B1, $00B2, $00B3, $0384, $0385, $0386, $00B7,
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$0388, $0389, $038A, $00BB, $038C, $00BD, $038E, $038F,
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$0390, $0391, $0392, $0393, $0394, $0395, $0396, $0397,
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$0398, $0399, $039A, $039B, $039C, $039D, $039E, $039F,
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$03A0, $03A1, $FFFD, $03A3, $03A4, $03A5, $03A6, $03A7,
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$03A8, $03A9, $03AA, $03AB, $03AC, $03AD, $03AE, $03AF,
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$03B0, $03B1, $03B2, $03B3, $03B4, $03B5, $03B6, $03B7,
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$03B8, $03B9, $03BA, $03BB, $03BC, $03BD, $03BE, $03BF,
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$03C0, $03C1, $03C2, $03C3, $03C4, $03C5, $03C6, $03C7,
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$03C8, $03C9, $03CA, $03CB, $03CC, $03CD, $03CE, $FFFD
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);
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{HEBREW
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}
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CharISO_8859_8: array[128..255] of Word =
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(
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$0080, $0081, $0082, $0083, $0084, $0085, $0086, $0087,
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$0088, $0089, $008A, $008B, $008C, $008D, $008E, $008F,
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$0090, $0091, $0092, $0093, $0094, $0095, $0096, $0097,
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$0098, $0099, $009A, $009B, $009C, $009D, $009E, $009F,
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$00A0, $FFFD, $00A2, $00A3, $00A4, $00A5, $00A6, $00A7,
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$00A8, $00A9, $00D7, $00AB, $00AC, $00AD, $00AE, $00AF,
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$00B0, $00B1, $00B2, $00B3, $00B4, $00B5, $00B6, $00B7,
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$00B8, $00B9, $00F7, $00BB, $00BC, $00BD, $00BE, $FFFD,
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$FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD,
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$FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD,
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$FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD,
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$FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $2017,
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$05D0, $05D1, $05D2, $05D3, $05D4, $05D5, $05D6, $05D7,
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$05D8, $05D9, $05DA, $05DB, $05DC, $05DD, $05DE, $05DF,
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$05E0, $05E1, $05E2, $05E3, $05E4, $05E5, $05E6, $05E7,
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$05E8, $05E9, $05EA, $FFFD, $FFFD, $200E, $200F, $FFFD
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);
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{Latin-5
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English, Finnish, French, German, Irish, Italian, Norwegian,
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Portuguese, Spanish, Swedish and Turkish.
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}
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CharISO_8859_9: array[128..255] of Word =
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(
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$0080, $0081, $0082, $0083, $0084, $0085, $0086, $0087,
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$0088, $0089, $008A, $008B, $008C, $008D, $008E, $008F,
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$0090, $0091, $0092, $0093, $0094, $0095, $0096, $0097,
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$0098, $0099, $009A, $009B, $009C, $009D, $009E, $009F,
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$00A0, $0104, $02D8, $0141, $00A4, $013D, $015A, $00A7,
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$00A8, $0160, $015E, $0164, $0179, $00AD, $017D, $017B,
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$00B0, $0105, $02DB, $0142, $00B4, $013E, $015B, $02C7,
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$00B8, $0161, $015F, $0165, $017A, $02DD, $017E, $017C,
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$0154, $00C1, $00C2, $0102, $00C4, $0139, $0106, $00C7,
|
|
$010C, $00C9, $0118, $00CB, $011A, $00CD, $00CE, $010E,
|
|
$011E, $00D1, $00D2, $00D3, $00D4, $00D5, $00D6, $00D7,
|
|
$00D8, $00D9, $00DA, $00DB, $00DC, $0130, $015E, $00DF,
|
|
$00E0, $00E1, $00E2, $00E3, $00E4, $00E5, $00E6, $00E7,
|
|
$00E8, $00E9, $00EA, $00EB, $00EC, $00ED, $00EE, $00EF,
|
|
$011F, $00F1, $00F2, $00F3, $00F4, $00F5, $00F6, $00F7,
|
|
$00F8, $00F9, $00FA, $00FB, $00FC, $0131, $015F, $00FF
|
|
);
|
|
|
|
{Latin-6
|
|
Danish, English, Estonian, Faeroese, Finnish, German, Greenlandic,
|
|
Icelandic, Lappish, Latvian, Lithuanian, Norwegian and Swedish.
|
|
}
|
|
CharISO_8859_10: array[128..255] of Word =
|
|
(
|
|
$0080, $0081, $0082, $0083, $0084, $0085, $0086, $0087,
|
|
$0088, $0089, $008A, $008B, $008C, $008D, $008E, $008F,
|
|
$0090, $0091, $0092, $0093, $0094, $0095, $0096, $0097,
|
|
$0098, $0099, $009A, $009B, $009C, $009D, $009E, $009F,
|
|
$00A0, $0104, $0112, $0122, $012A, $0128, $0136, $00A7,
|
|
$013B, $0110, $0160, $0166, $017D, $00AD, $016A, $014A,
|
|
$00B0, $0105, $0113, $0123, $012B, $0129, $0137, $00B7,
|
|
$013C, $0111, $0161, $0167, $017E, $2015, $016B, $014B,
|
|
$0100, $00C1, $00C2, $00C3, $00C4, $00C5, $00C6, $012E,
|
|
$010C, $00C9, $0118, $00CB, $0116, $00CD, $00CE, $00CF,
|
|
$00D0, $0145, $014C, $00D3, $00D4, $00D5, $00D6, $0168,
|
|
$00D8, $0172, $00DA, $00DB, $00DC, $00DD, $00DE, $00DF,
|
|
$0101, $00E1, $00E2, $00E3, $00E4, $00E5, $00E6, $012F,
|
|
$010D, $00E9, $0119, $00EB, $0117, $00ED, $00EE, $00EF,
|
|
$00F0, $0146, $014D, $00F3, $00F4, $00F5, $00F6, $0169,
|
|
$00F8, $0173, $00FA, $00FB, $00FC, $00FD, $00FE, $0138
|
|
);
|
|
|
|
{Eastern European
|
|
}
|
|
CharCP_1250: array[128..255] of Word =
|
|
(
|
|
$20AC, $FFFD, $201A, $FFFD, $201E, $2026, $2020, $2021,
|
|
$FFFD, $2030, $0160, $2039, $015A, $0164, $017D, $0179,
|
|
$FFFD, $2018, $2019, $201C, $201D, $2022, $2013, $2014,
|
|
$FFFD, $2122, $0161, $203A, $015B, $0165, $017E, $017A,
|
|
$00A0, $02C7, $02D8, $0141, $00A4, $0104, $00A6, $00A7,
|
|
$00A8, $00A9, $015E, $00AB, $00AC, $00AD, $00AE, $017B,
|
|
$00B0, $00B1, $02DB, $0142, $00B4, $00B5, $00B6, $00B7,
|
|
$00B8, $0105, $015F, $00BB, $013D, $02DD, $013E, $017C,
|
|
$0154, $00C1, $00C2, $0102, $00C4, $0139, $0106, $00C7,
|
|
$010C, $00C9, $0118, $00CB, $011A, $00CD, $00CE, $010E,
|
|
$0110, $0143, $0147, $00D3, $00D4, $0150, $00D6, $00D7,
|
|
$0158, $016E, $00DA, $0170, $00DC, $00DD, $0162, $00DF,
|
|
$0155, $00E1, $00E2, $0103, $00E4, $013A, $0107, $00E7,
|
|
$010D, $00E9, $0119, $00EB, $011B, $00ED, $00EE, $010F,
|
|
$0111, $0144, $0148, $00F3, $00F4, $0151, $00F6, $00F7,
|
|
$0159, $016F, $00FA, $0171, $00FC, $00FD, $0163, $02D9
|
|
);
|
|
|
|
{Cyrillic
|
|
}
|
|
CharCP_1251: array[128..255] of Word =
|
|
(
|
|
$0402, $0403, $201A, $0453, $201E, $2026, $2020, $2021,
|
|
$20AC, $2030, $0409, $2039, $040A, $040C, $040B, $040F,
|
|
$0452, $2018, $2019, $201C, $201D, $2022, $2013, $2014,
|
|
$FFFD, $2122, $0459, $203A, $045A, $045C, $045B, $045F,
|
|
$00A0, $040E, $045E, $0408, $00A4, $0490, $00A6, $00A7,
|
|
$0401, $00A9, $0404, $00AB, $00AC, $00AD, $00AE, $0407,
|
|
$00B0, $00B1, $0406, $0456, $0491, $00B5, $00B6, $00B7,
|
|
$0451, $2116, $0454, $00BB, $0458, $0405, $0455, $0457,
|
|
$0410, $0411, $0412, $0413, $0414, $0415, $0416, $0417,
|
|
$0418, $0419, $041A, $041B, $041C, $041D, $041E, $041F,
|
|
$0420, $0421, $0422, $0423, $0424, $0425, $0426, $0427,
|
|
$0428, $0429, $042A, $042B, $042C, $042D, $042E, $042F,
|
|
$0430, $0431, $0432, $0433, $0434, $0435, $0436, $0437,
|
|
$0438, $0439, $043A, $043B, $043C, $043D, $043E, $043F,
|
|
$0440, $0441, $0442, $0443, $0444, $0445, $0446, $0447,
|
|
$0448, $0449, $044A, $044B, $044C, $044D, $044E, $044F
|
|
);
|
|
|
|
{Latin-1 (US, Western Europe)
|
|
}
|
|
CharCP_1252: array[128..255] of Word =
|
|
(
|
|
$20AC, $FFFD, $201A, $0192, $201E, $2026, $2020, $2021,
|
|
$02C6, $2030, $0160, $2039, $0152, $FFFD, $017D, $FFFD,
|
|
$FFFD, $2018, $2019, $201C, $201D, $2022, $2013, $2014,
|
|
$02DC, $2122, $0161, $203A, $0153, $FFFD, $017E, $0178,
|
|
$00A0, $00A1, $00A2, $00A3, $00A4, $00A5, $00A6, $00A7,
|
|
$00A8, $00A9, $00AA, $00AB, $00AC, $00AD, $00AE, $00AF,
|
|
$00B0, $00B1, $00B2, $00B3, $00B4, $00B5, $00B6, $00B7,
|
|
$00B8, $00B9, $00BA, $00BB, $00BC, $00BD, $00BE, $00BF,
|
|
$00C0, $00C1, $00C2, $00C3, $00C4, $00C5, $00C6, $00C7,
|
|
$00C8, $00C9, $00CA, $00CB, $00CC, $00CD, $00CE, $00CF,
|
|
$00D0, $00D1, $00D2, $00D3, $00D4, $00D5, $00D6, $00D7,
|
|
$00D8, $00D9, $00DA, $00DB, $00DC, $00DD, $00DE, $00DF,
|
|
$00E0, $00E1, $00E2, $00E3, $00E4, $00E5, $00E6, $00E7,
|
|
$00E8, $00E9, $00EA, $00EB, $00EC, $00ED, $00EE, $00EF,
|
|
$00F0, $00F1, $00F2, $00F3, $00F4, $00F5, $00F6, $00F7,
|
|
$00F8, $00F9, $00FA, $00FB, $00FC, $00FD, $00FE, $00FF
|
|
);
|
|
|
|
{Greek
|
|
}
|
|
CharCP_1253: array[128..255] of Word =
|
|
(
|
|
$20AC, $FFFD, $201A, $0192, $201E, $2026, $2020, $2021,
|
|
$FFFD, $2030, $FFFD, $2039, $FFFD, $FFFD, $FFFD, $FFFD,
|
|
$FFFD, $2018, $2019, $201C, $201D, $2022, $2013, $2014,
|
|
$FFFD, $2122, $FFFD, $203A, $FFFD, $FFFD, $FFFD, $FFFD,
|
|
$00A0, $0385, $0386, $00A3, $00A4, $00A5, $00A6, $00A7,
|
|
$00A8, $00A9, $FFFD, $00AB, $00AC, $00AD, $00AE, $2015,
|
|
$00B0, $00B1, $00B2, $00B3, $0384, $00B5, $00B6, $00B7,
|
|
$0388, $0389, $038A, $00BB, $038C, $00BD, $038E, $038F,
|
|
$0390, $0391, $0392, $0393, $0394, $0395, $0396, $0397,
|
|
$0398, $0399, $039A, $039B, $039C, $039D, $039E, $039F,
|
|
$03A0, $03A1, $FFFD, $03A3, $03A4, $03A5, $03A6, $03A7,
|
|
$03A8, $03A9, $03AA, $03AB, $03AC, $03AD, $03AE, $03AF,
|
|
$03B0, $03B1, $03B2, $03B3, $03B4, $03B5, $03B6, $03B7,
|
|
$03B8, $03B9, $03BA, $03BB, $03BC, $03BD, $03BE, $03BF,
|
|
$03C0, $03C1, $03C2, $03C3, $03C4, $03C5, $03C6, $03C7,
|
|
$03C8, $03C9, $03CA, $03CB, $03CC, $03CD, $03CE, $FFFD
|
|
);
|
|
|
|
{Turkish
|
|
}
|
|
CharCP_1254: array[128..255] of Word =
|
|
(
|
|
$20AC, $FFFD, $201A, $0192, $201E, $2026, $2020, $2021,
|
|
$02C6, $2030, $0160, $2039, $0152, $FFFD, $FFFD, $FFFD,
|
|
$FFFD, $2018, $2019, $201C, $201D, $2022, $2013, $2014,
|
|
$02DC, $2122, $0161, $203A, $0153, $FFFD, $FFFD, $0178,
|
|
$00A0, $00A1, $00A2, $00A3, $00A4, $00A5, $00A6, $00A7,
|
|
$00A8, $00A9, $00AA, $00AB, $00AC, $00AD, $00AE, $00AF,
|
|
$00B0, $00B1, $00B2, $00B3, $00B4, $00B5, $00B6, $00B7,
|
|
$00B8, $00B9, $00BA, $00BB, $00BC, $00BD, $00BE, $00BF,
|
|
$00C0, $00C1, $00C2, $00C3, $00C4, $00C5, $00C6, $00C7,
|
|
$00C8, $00C9, $00CA, $00CB, $00CC, $00CD, $00CE, $00CF,
|
|
$011E, $00D1, $00D2, $00D3, $00D4, $00D5, $00D6, $00D7,
|
|
$00D8, $00D9, $00DA, $00DB, $00DC, $0130, $015E, $00DF,
|
|
$00E0, $00E1, $00E2, $00E3, $00E4, $00E5, $00E6, $00E7,
|
|
$00E8, $00E9, $00EA, $00EB, $00EC, $00ED, $00EE, $00EF,
|
|
$011F, $00F1, $00F2, $00F3, $00F4, $00F5, $00F6, $00F7,
|
|
$00F8, $00F9, $00FA, $00FB, $00FC, $0131, $015F, $00FF
|
|
);
|
|
|
|
{Hebrew
|
|
}
|
|
CharCP_1255: array[128..255] of Word =
|
|
(
|
|
$20AC, $FFFD, $201A, $0192, $201E, $2026, $2020, $2021,
|
|
$02C6, $2030, $FFFD, $2039, $FFFD, $FFFD, $FFFD, $FFFD,
|
|
$FFFD, $2018, $2019, $201C, $201D, $2022, $2013, $2014,
|
|
$02DC, $2122, $FFFD, $203A, $FFFD, $FFFD, $FFFD, $FFFD,
|
|
$00A0, $00A1, $00A2, $00A3, $20AA, $00A5, $00A6, $00A7,
|
|
$00A8, $00A9, $00D7, $00AB, $00AC, $00AD, $00AE, $00AF,
|
|
$00B0, $00B1, $00B2, $00B3, $00B4, $00B5, $00B6, $00B7,
|
|
$00B8, $00B9, $00F7, $00BB, $00BC, $00BD, $00BE, $00BF,
|
|
$05B0, $05B1, $05B2, $05B3, $05B4, $05B5, $05B6, $05B7,
|
|
$05B8, $05B9, $FFFD, $05BB, $05BC, $05BD, $05BE, $05BF,
|
|
$05C0, $05C1, $05C2, $05C3, $05F0, $05F1, $05F2, $05F3,
|
|
$05F4, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD, $FFFD,
|
|
$05D0, $05D1, $05D2, $05D3, $05D4, $05D5, $05D6, $05D7,
|
|
$05D8, $05D9, $05DA, $05DB, $05DC, $05DD, $05DE, $05DF,
|
|
$05E0, $05E1, $05E2, $05E3, $05E4, $05E5, $05E6, $05E7,
|
|
$05E8, $05E9, $05EA, $FFFD, $FFFD, $200E, $200F, $FFFD
|
|
);
|
|
|
|
{Arabic
|
|
}
|
|
CharCP_1256: array[128..255] of Word =
|
|
(
|
|
$20AC, $067E, $201A, $0192, $201E, $2026, $2020, $2021,
|
|
$02C6, $2030, $0679, $2039, $0152, $0686, $0698, $0688,
|
|
$06AF, $2018, $2019, $201C, $201D, $2022, $2013, $2014,
|
|
$06A9, $2122, $0691, $203A, $0153, $200C, $200D, $06BA,
|
|
$00A0, $060C, $00A2, $00A3, $00A4, $00A5, $00A6, $00A7,
|
|
$00A8, $00A9, $06BE, $00AB, $00AC, $00AD, $00AE, $00AF,
|
|
$00B0, $00B1, $00B2, $00B3, $00B4, $00B5, $00B6, $00B7,
|
|
$00B8, $00B9, $061B, $00BB, $00BC, $00BD, $00BE, $061F,
|
|
$06C1, $0621, $0622, $0623, $0624, $0625, $0626, $0627,
|
|
$0628, $0629, $062A, $062B, $062C, $062D, $062E, $062F,
|
|
$0630, $0631, $0632, $0633, $0634, $0635, $0636, $00D7,
|
|
$0637, $0638, $0639, $063A, $0640, $0641, $0642, $0643,
|
|
$00E0, $0644, $00E2, $0645, $0646, $0647, $0648, $00E7,
|
|
$00E8, $00E9, $00EA, $00EB, $0649, $064A, $00EE, $00EF,
|
|
$064B, $064C, $064D, $064E, $00F4, $064F, $0650, $00F7,
|
|
$0651, $00F9, $0652, $00FB, $00FC, $200E, $200F, $06D2
|
|
);
|
|
|
|
{Baltic
|
|
}
|
|
CharCP_1257: array[128..255] of Word =
|
|
(
|
|
$20AC, $FFFD, $201A, $FFFD, $201E, $2026, $2020, $2021,
|
|
$FFFD, $2030, $FFFD, $2039, $FFFD, $00A8, $02C7, $00B8,
|
|
$FFFD, $2018, $2019, $201C, $201D, $2022, $2013, $2014,
|
|
$FFFD, $2122, $FFFD, $203A, $FFFD, $00AF, $02DB, $FFFD,
|
|
$00A0, $FFFD, $00A2, $00A3, $00A4, $FFFD, $00A6, $00A7,
|
|
$00D8, $00A9, $0156, $00AB, $00AC, $00AD, $00AE, $00C6,
|
|
$00B0, $00B1, $00B2, $00B3, $00B4, $00B5, $00B6, $00B7,
|
|
$00F8, $00B9, $0157, $00BB, $00BC, $00BD, $00BE, $00E6,
|
|
$0104, $012E, $0100, $0106, $00C4, $00C5, $0118, $0112,
|
|
$010C, $00C9, $0179, $0116, $0122, $0136, $012A, $013B,
|
|
$0160, $0143, $0145, $00D3, $014C, $00D5, $00D6, $00D7,
|
|
$0172, $0141, $015A, $016A, $00DC, $017B, $017D, $00DF,
|
|
$0105, $012F, $0101, $0107, $00E4, $00E5, $0119, $0113,
|
|
$010D, $00E9, $017A, $0117, $0123, $0137, $012B, $013C,
|
|
$0161, $0144, $0146, $00F3, $014D, $00F5, $00F6, $00F7,
|
|
$0173, $0142, $015B, $016B, $00FC, $017C, $017E, $02D9
|
|
);
|
|
|
|
{??
|
|
}
|
|
CharCP_1258: array[128..255] of Word =
|
|
(
|
|
$20AC, $FFFD, $201A, $0192, $201E, $2026, $2020, $2021,
|
|
$02C6, $2030, $FFFD, $2039, $0152, $FFFD, $FFFD, $FFFD,
|
|
$FFFD, $2018, $2019, $201C, $201D, $2022, $2013, $2014,
|
|
$02DC, $2122, $FFFD, $203A, $0153, $FFFD, $FFFD, $0178,
|
|
$00A0, $00A1, $00A2, $00A3, $00A4, $00A5, $00A6, $00A7,
|
|
$00A8, $00A9, $00AA, $00AB, $00AC, $00AD, $00AE, $00AF,
|
|
$00B0, $00B1, $00B2, $00B3, $00B4, $00B5, $00B6, $00B7,
|
|
$00B8, $00B9, $00BA, $00BB, $00BC, $00BD, $00BE, $00BF,
|
|
$00C0, $00C1, $00C2, $0102, $00C4, $00C5, $00C6, $00C7,
|
|
$00C8, $00C9, $00CA, $00CB, $0300, $00CD, $00CE, $00CF,
|
|
$0110, $00D1, $0309, $00D3, $00D4, $01A0, $00D6, $00D7,
|
|
$00D8, $00D9, $00DA, $00DB, $00DC, $01AF, $0303, $00DF,
|
|
$00E0, $00E1, $00E2, $0103, $00E4, $00E5, $00E6, $00E7,
|
|
$00E8, $00E9, $00EA, $00EB, $0301, $00ED, $00EE, $00EF,
|
|
$0111, $00F1, $0323, $00F3, $00F4, $01A1, $00F6, $00F7,
|
|
$00F8, $00F9, $00FA, $00FB, $00FC, $01B0, $20AB, $00FF
|
|
);
|
|
|
|
{Cyrillic
|
|
}
|
|
CharKOI8_R: array[128..255] of Word =
|
|
(
|
|
$2500, $2502, $250C, $2510, $2514, $2518, $251C, $2524,
|
|
$252C, $2534, $253C, $2580, $2584, $2588, $258C, $2590,
|
|
$2591, $2592, $2593, $2320, $25A0, $2219, $221A, $2248,
|
|
$2264, $2265, $00A0, $2321, $00B0, $00B2, $00B7, $00F7,
|
|
$2550, $2551, $2552, $0451, $2553, $2554, $2555, $2556,
|
|
$2557, $2558, $2559, $255A, $255B, $255C, $255D, $255E,
|
|
$255F, $2560, $2561, $0401, $2562, $2563, $2564, $2565,
|
|
$2566, $2567, $2568, $2569, $256A, $256B, $256C, $00A9,
|
|
$044E, $0430, $0431, $0446, $0434, $0435, $0444, $0433,
|
|
$0445, $0438, $0439, $043A, $043B, $043C, $043D, $043E,
|
|
$043F, $044F, $0440, $0441, $0442, $0443, $0436, $0432,
|
|
$044C, $044B, $0437, $0448, $044D, $0449, $0447, $044A,
|
|
$042E, $0410, $0411, $0426, $0414, $0415, $0424, $0413,
|
|
$0425, $0418, $0419, $041A, $041B, $041C, $041D, $041E,
|
|
$041F, $042F, $0420, $0421, $0422, $0423, $0416, $0412,
|
|
$042C, $042B, $0417, $0428, $042D, $0429, $0427, $042A
|
|
);
|
|
|
|
{Czech (Kamenicky)
|
|
}
|
|
CharCP_895: array[128..255] of Word =
|
|
(
|
|
$010C, $00FC, $00E9, $010F, $00E4, $010E, $0164, $010D,
|
|
$011B, $011A, $0139, $00CD, $013E, $013A, $00C4, $00C1,
|
|
$00C9, $017E, $017D, $00F4, $00F6, $00D3, $016F, $00DA,
|
|
$00FD, $00D6, $00DC, $0160, $013D, $00DD, $0158, $0165,
|
|
$00E1, $00ED, $00F3, $00FA, $0148, $0147, $016E, $00D4,
|
|
$0161, $0159, $0155, $0154, $00BC, $00A7, $00AB, $00BB,
|
|
$2591, $2592, $2593, $2502, $2524, $2561, $2562, $2556,
|
|
$2555, $2563, $2551, $2557, $255D, $255C, $255B, $2510,
|
|
$2514, $2534, $252C, $251C, $2500, $253C, $255E, $255F,
|
|
$255A, $2554, $2569, $2566, $2560, $2550, $256C, $2567,
|
|
$2568, $2564, $2565, $2559, $2558, $2552, $2553, $256B,
|
|
$256A, $2518, $250C, $2588, $2584, $258C, $2590, $2580,
|
|
$03B1, $03B2, $0393, $03C0, $03A3, $03C3, $03BC, $03C4,
|
|
$03A6, $0398, $03A9, $03B4, $221E, $2205, $03B5, $2229,
|
|
$2261, $00B1, $2265, $2264, $2320, $2321, $00F7, $2248,
|
|
$2218, $00B7, $2219, $221A, $207F, $00B2, $25A0, $00A0
|
|
);
|
|
|
|
{Eastern European
|
|
}
|
|
CharCP_852: array[128..255] of Word =
|
|
(
|
|
$00C7, $00FC, $00E9, $00E2, $00E4, $016F, $0107, $00E7,
|
|
$0142, $00EB, $0150, $0151, $00EE, $0179, $00C4, $0106,
|
|
$00C9, $0139, $013A, $00F4, $00F6, $013D, $013E, $015A,
|
|
$015B, $00D6, $00DC, $0164, $0165, $0141, $00D7, $010D,
|
|
$00E1, $00ED, $00F3, $00FA, $0104, $0105, $017D, $017E,
|
|
$0118, $0119, $00AC, $017A, $010C, $015F, $00AB, $00BB,
|
|
$2591, $2592, $2593, $2502, $2524, $00C1, $00C2, $011A,
|
|
$015E, $2563, $2551, $2557, $255D, $017B, $017C, $2510,
|
|
$2514, $2534, $252C, $251C, $2500, $253C, $0102, $0103,
|
|
$255A, $2554, $2569, $2566, $2560, $2550, $256C, $00A4,
|
|
$0111, $0110, $010E, $00CB, $010F, $0147, $00CD, $00CE,
|
|
$011B, $2518, $250C, $2588, $2584, $0162, $016E, $2580,
|
|
$00D3, $00DF, $00D4, $0143, $0144, $0148, $0160, $0161,
|
|
$0154, $00DA, $0155, $0170, $00FD, $00DD, $0163, $00B4,
|
|
$00AD, $02DD, $02DB, $02C7, $02D8, $00A7, $00F7, $00B8,
|
|
$00B0, $00A8, $02D9, $0171, $0158, $0159, $25A0, $00A0
|
|
);
|
|
|
|
{==============================================================================}
|
|
function UTF8toUCS4(const Value: string): string;
|
|
function UCS4toUTF8(const Value: string): string;
|
|
function UTF7toUCS2(const Value: string): string;
|
|
function UCS2toUTF7(const Value: string): string;
|
|
function CharsetConversion(Value: string; CharFrom: TMimeChar;
|
|
CharTo: TMimeChar): string;
|
|
function GetCurCP: TMimeChar;
|
|
function GetCPFromID(Value: string): TMimeChar;
|
|
function GetIDFromCP(Value: TMimeChar): string;
|
|
function NeedCharsetConversion(const Value: string): Boolean;
|
|
function IdealCharsetCoding(const Value: string; CharFrom: TMimeChar;
|
|
CharTo: TMimeSetChar): TMimeChar;
|
|
|
|
implementation
|
|
|
|
uses
|
|
{$IFDEF LINUX}
|
|
Libc,
|
|
{$ELSE}
|
|
Windows,
|
|
{$ENDIF}
|
|
SysUtils,
|
|
SynaUtil, SynaCode;
|
|
|
|
const
|
|
NotFoundChar = '_';
|
|
|
|
var
|
|
SetTwo: set of TMimeChar = [UCS_2, UTF_7];
|
|
SetFour: set of TMimeChar = [UCS_4, UTF_8];
|
|
|
|
{==============================================================================}
|
|
|
|
procedure CopyArray(const SourceTable: array of Word;
|
|
var TargetTable: array of Word);
|
|
var
|
|
n: Integer;
|
|
begin
|
|
for n := 0 to 127 do
|
|
TargetTable[n] := SourceTable[n];
|
|
end;
|
|
|
|
{==============================================================================}
|
|
|
|
procedure GetArray(CharSet: TMimeChar; var Result: array of Word);
|
|
begin
|
|
case CharSet of
|
|
ISO_8859_1:
|
|
CopyArray(CharISO_8859_1, Result);
|
|
ISO_8859_2:
|
|
CopyArray(CharISO_8859_2, Result);
|
|
ISO_8859_3:
|
|
CopyArray(CharISO_8859_3, Result);
|
|
ISO_8859_4:
|
|
CopyArray(CharISO_8859_4, Result);
|
|
ISO_8859_5:
|
|
CopyArray(CharISO_8859_5, Result);
|
|
ISO_8859_6:
|
|
CopyArray(CharISO_8859_6, Result);
|
|
ISO_8859_7:
|
|
CopyArray(CharISO_8859_7, Result);
|
|
ISO_8859_8:
|
|
CopyArray(CharISO_8859_8, Result);
|
|
ISO_8859_9:
|
|
CopyArray(CharISO_8859_9, Result);
|
|
ISO_8859_10:
|
|
CopyArray(CharISO_8859_10, Result);
|
|
CP1250:
|
|
CopyArray(CharCP_1250, Result);
|
|
CP1251:
|
|
CopyArray(CharCP_1251, Result);
|
|
CP1252:
|
|
CopyArray(CharCP_1252, Result);
|
|
CP1253:
|
|
CopyArray(CharCP_1253, Result);
|
|
CP1254:
|
|
CopyArray(CharCP_1254, Result);
|
|
CP1255:
|
|
CopyArray(CharCP_1255, Result);
|
|
CP1256:
|
|
CopyArray(CharCP_1256, Result);
|
|
CP1257:
|
|
CopyArray(CharCP_1257, Result);
|
|
CP1258:
|
|
CopyArray(CharCP_1258, Result);
|
|
KOI8_R:
|
|
CopyArray(CharKOI8_R, Result);
|
|
CP895:
|
|
CopyArray(CharCP_895, Result);
|
|
CP852:
|
|
CopyArray(CharCP_852, Result);
|
|
end;
|
|
end;
|
|
|
|
{==============================================================================}
|
|
|
|
procedure ReadMulti(const Value: string; var Index: Integer; mb: Byte;
|
|
var b1, b2, b3, b4: Byte);
|
|
var
|
|
b: array[0..3] of Byte;
|
|
n: Integer;
|
|
s: string;
|
|
begin
|
|
b[0] := 0;
|
|
b[1] := 0;
|
|
b[2] := 0;
|
|
b[3] := 0;
|
|
if (Length(Value) + 1) < Index + mb then
|
|
Exit;
|
|
s := '';
|
|
for n := 1 to mb do
|
|
begin
|
|
s := Value[Index] + s;
|
|
Inc(Index);
|
|
end;
|
|
for n := 1 to mb do
|
|
b[n - 1] := Ord(s[n]);
|
|
b1 := b[0];
|
|
b2 := b[1];
|
|
b3 := b[2];
|
|
b4 := b[3];
|
|
end;
|
|
|
|
{==============================================================================}
|
|
|
|
function WriteMulti(b1, b2, b3, b4: Byte; mb: Byte): string;
|
|
var
|
|
b: array[0..3] of Byte;
|
|
n: Integer;
|
|
begin
|
|
Result := '';
|
|
b[0] := b1;
|
|
b[1] := b2;
|
|
b[2] := b3;
|
|
b[3] := b4;
|
|
for n := 1 to mb do
|
|
Result := Char(b[n - 1]) + Result;
|
|
end;
|
|
|
|
{==============================================================================}
|
|
|
|
function UTF8toUCS4(const Value: string): string;
|
|
var
|
|
n, x, ul, m: Integer;
|
|
s: string;
|
|
w1, w2: Word;
|
|
begin
|
|
Result := '';
|
|
n := 1;
|
|
while Length(Value) >= n do
|
|
begin
|
|
x := Ord(Value[n]);
|
|
Inc(n);
|
|
if x < 128 then
|
|
Result := Result + WriteMulti(x, 0, 0, 0, 4)
|
|
else
|
|
begin
|
|
m := 0;
|
|
if (x and $E0) = $C0 then
|
|
m := $1F;
|
|
if (x and $F0) = $E0 then
|
|
m := $0F;
|
|
if (x and $F8) = $F0 then
|
|
m := $07;
|
|
if (x and $FC) = $F8 then
|
|
m := $03;
|
|
if (x and $FE) = $FC then
|
|
m := $01;
|
|
ul := x and m;
|
|
s := IntToBin(ul, 0);
|
|
while Length(Value) >= n do
|
|
begin
|
|
x := Ord(Value[n]);
|
|
Inc(n);
|
|
if (x and $C0) = $80 then
|
|
s := s + IntToBin(x and $3F, 6)
|
|
else
|
|
begin
|
|
Dec(n);
|
|
Break;
|
|
end;
|
|
end;
|
|
ul := BinToInt(s);
|
|
w1 := ul div 65536;
|
|
w2 := ul mod 65536;
|
|
Result := Result + WriteMulti(Lo(w2), Hi(w2), Lo(w1), Hi(w1), 4);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{==============================================================================}
|
|
|
|
function UCS4toUTF8(const Value: string): string;
|
|
var
|
|
s, l, k: string;
|
|
b1, b2, b3, b4: Byte;
|
|
n, m, x, y: Integer;
|
|
b: Byte;
|
|
begin
|
|
Result := '';
|
|
n := 1;
|
|
while Length(Value) >= n do
|
|
begin
|
|
ReadMulti(Value, n, 4, b1, b2, b3, b4);
|
|
if (b2 = 0) and (b3 = 0) and (b4 = 0) and (b1 < 128) then
|
|
Result := Result + Char(b1)
|
|
else
|
|
begin
|
|
x := (b1 + 256 * b2) + (b3 + 256 * b4) * 65536;
|
|
l := IntToBin(x, 0);
|
|
y := Length(l) div 6;
|
|
s := '';
|
|
for m := 1 to y do
|
|
begin
|
|
k := Copy(l, Length(l) - 5, 6);
|
|
l := Copy(l, 1, Length(l) - 6);
|
|
b := BinToInt(k) or $80;
|
|
s := Char(b) + s;
|
|
end;
|
|
b := BinToInt(l);
|
|
case y of
|
|
5:
|
|
b := b or $FC;
|
|
4:
|
|
b := b or $F8;
|
|
3:
|
|
b := b or $F0;
|
|
2:
|
|
b := b or $E0;
|
|
1:
|
|
b := b or $C0;
|
|
end;
|
|
s := Char(b) + s;
|
|
Result := Result + s;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{==============================================================================}
|
|
|
|
function UTF7toUCS2(const Value: string): string;
|
|
var
|
|
n: Integer;
|
|
c: Char;
|
|
s: string;
|
|
begin
|
|
Result := '';
|
|
n := 1;
|
|
while Length(Value) >= n do
|
|
begin
|
|
c := Value[n];
|
|
Inc(n);
|
|
if c <> '+' then
|
|
Result := Result + WriteMulti(Ord(c), 0, 0, 0, 2)
|
|
else
|
|
begin
|
|
s := '';
|
|
while Length(Value) >= n do
|
|
begin
|
|
c := Value[n];
|
|
Inc(n);
|
|
if c = '-' then
|
|
Break;
|
|
if (c = '=') or (Pos(c, TableBase64) < 1) then
|
|
begin
|
|
Dec(n);
|
|
Break;
|
|
end;
|
|
s := s + c;
|
|
end;
|
|
if s = '' then
|
|
s := '+'
|
|
else
|
|
s := DecodeBase64(s);
|
|
Result := Result + s;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{==============================================================================}
|
|
|
|
function UCS2toUTF7(const Value: string): string;
|
|
var
|
|
s: string;
|
|
b1, b2, b3, b4: Byte;
|
|
n, m: Integer;
|
|
begin
|
|
Result := '';
|
|
n := 1;
|
|
while Length(Value) >= n do
|
|
begin
|
|
ReadMulti(Value, n, 2, b1, b2, b3, b4);
|
|
if (b2 = 0) and (b1 < 128) then
|
|
if Char(b1) = '+' then
|
|
Result := Result + '+-'
|
|
else
|
|
Result := Result + Char(b1)
|
|
else
|
|
begin
|
|
s := Char(b2) + Char(b1);
|
|
while Length(Value) >= n do
|
|
begin
|
|
ReadMulti(Value, n, 2, b1, b2, b3, b4);
|
|
if (b2 = 0) and (b1 < 128) then
|
|
begin
|
|
Dec(n, 2);
|
|
Break;
|
|
end;
|
|
s := s + Char(b2) + Char(b1);
|
|
end;
|
|
s := EncodeBase64(s);
|
|
m := Pos('=', s);
|
|
if m > 0 then
|
|
s := Copy(s, 1, m - 1);
|
|
Result := Result + '+' + s + '-';
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{==============================================================================}
|
|
|
|
function CharsetConversion(Value: string; CharFrom: TMimeChar;
|
|
CharTo: TMimeChar): string;
|
|
var
|
|
uni: Word;
|
|
n, m: Integer;
|
|
b: Byte;
|
|
b1, b2, b3, b4: Byte;
|
|
SourceTable, TargetTable: array[128..255] of Word;
|
|
mbf, mbt: Byte;
|
|
begin
|
|
GetArray(CharFrom, SourceTable);
|
|
GetArray(CharTo, TargetTable);
|
|
mbf := 1;
|
|
if CharFrom in SetTwo then
|
|
mbf := 2;
|
|
if CharFrom in SetFour then
|
|
mbf := 4;
|
|
mbt := 1;
|
|
if CharTo in SetTwo then
|
|
mbt := 2;
|
|
if CharTo in SetFour then
|
|
mbt := 4;
|
|
|
|
if CharFrom = UTF_8 then
|
|
Value := UTF8toUCS4(Value);
|
|
if CharFrom = UTF_7 then
|
|
Value := UTF7toUCS2(Value);
|
|
Result := '';
|
|
|
|
n := 1;
|
|
while Length(Value) >= n do
|
|
begin
|
|
ReadMulti(Value, n, mbf, b1, b2, b3, b4);
|
|
if mbf = 1 then
|
|
if b1 > 127 then
|
|
begin
|
|
uni := SourceTable[b1];
|
|
b1 := Lo(uni);
|
|
b2 := Hi(uni);
|
|
end;
|
|
// b1..b4 - Unicode Char
|
|
uni := b2 * 256 + b1;
|
|
if (b3 <> 0) or (b4 <> 0) then
|
|
begin
|
|
b1 := Ord(NotFoundChar);
|
|
b2 := 0;
|
|
b3 := 0;
|
|
b4 := 0;
|
|
end
|
|
else
|
|
if mbt = 1 then
|
|
if uni > 127 then
|
|
begin
|
|
b := Ord(NotFoundChar);
|
|
for m := 128 to 255 do
|
|
if TargetTable[m] = uni then
|
|
begin
|
|
b := m;
|
|
Break;
|
|
end;
|
|
b1 := b;
|
|
b2 := 0;
|
|
end
|
|
else
|
|
b1 := Lo(uni);
|
|
Result := Result + WriteMulti(b1, b2, b3, b4, mbt)
|
|
end;
|
|
|
|
if CharTo = UTF_7 then
|
|
Result := UCS2toUTF7(Result);
|
|
if CharTo = UTF_8 then
|
|
Result := UCS4toUTF8(Result);
|
|
|
|
end;
|
|
|
|
{==============================================================================}
|
|
|
|
{$IFDEF LINUX}
|
|
|
|
function GetCurCP: TMimeChar;
|
|
begin
|
|
Result := GetCPFromID(nl_langinfo(_NL_CTYPE_CODESET_NAME));
|
|
end;
|
|
|
|
{$ELSE}
|
|
|
|
function GetCurCP: TMimeChar;
|
|
begin
|
|
case GetACP of
|
|
1250:
|
|
Result := CP1250;
|
|
1251:
|
|
Result := CP1251;
|
|
1253:
|
|
Result := CP1253;
|
|
1254:
|
|
Result := CP1254;
|
|
1255:
|
|
Result := CP1255;
|
|
1256:
|
|
Result := CP1256;
|
|
1257:
|
|
Result := CP1257;
|
|
1258:
|
|
Result := CP1258;
|
|
else
|
|
Result := CP1252;
|
|
end;
|
|
end;
|
|
|
|
{$ENDIF}
|
|
|
|
{==============================================================================}
|
|
|
|
function GetCPFromID(Value: string): TMimeChar;
|
|
begin
|
|
Value := UpperCase(Value);
|
|
Result := ISO_8859_1;
|
|
if Pos('ISO-8859-10', Value) = 1 then
|
|
Result := ISO_8859_10
|
|
else
|
|
if Pos('ISO-8859-2', Value) = 1 then
|
|
Result := ISO_8859_2
|
|
else
|
|
if Pos('ISO-8859-3', Value) = 1 then
|
|
Result := ISO_8859_3
|
|
else
|
|
if Pos('ISO-8859-4', Value) = 1 then
|
|
Result := ISO_8859_4
|
|
else
|
|
if Pos('ISO-8859-5', Value) = 1 then
|
|
Result := ISO_8859_5
|
|
else
|
|
if Pos('ISO-8859-6', Value) = 1 then
|
|
Result := ISO_8859_6
|
|
else
|
|
if Pos('ISO-8859-7', Value) = 1 then
|
|
Result := ISO_8859_7
|
|
else
|
|
if Pos('ISO-8859-8', Value) = 1 then
|
|
Result := ISO_8859_8
|
|
else
|
|
if Pos('ISO-8859-9', Value) = 1 then
|
|
Result := ISO_8859_9
|
|
else
|
|
if (Pos('WINDOWS-1250', Value) = 1) or (Pos('X-CP1250', Value) = 1) then
|
|
Result := CP1250
|
|
else
|
|
if (Pos('WINDOWS-1251', Value) = 1) or (Pos('X-CP1251', Value) = 1) then
|
|
Result := CP1251
|
|
else
|
|
if (Pos('WINDOWS-1252', Value) = 1) or (Pos('X-CP1252', Value) = 1) then
|
|
Result := CP1252
|
|
else
|
|
if (Pos('WINDOWS-1253', Value) = 1) or (Pos('X-CP1253', Value) = 1) then
|
|
Result := CP1253
|
|
else
|
|
if (Pos('WINDOWS-1254', Value) = 1) or (Pos('X-CP1254', Value) = 1) then
|
|
Result := CP1254
|
|
else
|
|
if (Pos('WINDOWS-1255', Value) = 1) or (Pos('X-CP1255', Value) = 1) then
|
|
Result := CP1255
|
|
else
|
|
if (Pos('WINDOWS-1256', Value) = 1) or (Pos('X-CP1256', Value) = 1) then
|
|
Result := CP1256
|
|
else
|
|
if (Pos('WINDOWS-1257', Value) = 1) or (Pos('X-CP1257', Value) = 1) then
|
|
Result := CP1257
|
|
else
|
|
if (Pos('WINDOWS-1258', Value) = 1) or (Pos('X-CP1258', Value) = 1) then
|
|
Result := CP1258
|
|
else
|
|
if Pos('KOI8-R', Value) = 1 then
|
|
Result := KOI8_R
|
|
else
|
|
if (Pos('KAMENICKY', Value) > 0) or (Pos('895', Value) > 0) then
|
|
Result := CP895
|
|
else
|
|
if (Pos('LATIN-2', Value) > 0) or (Pos('852', Value) > 0) then
|
|
Result := CP852
|
|
else
|
|
if Pos('UTF-7', Value) = 1 then
|
|
Result := UTF_7
|
|
else
|
|
if Pos('UTF-8', Value) > 0 then
|
|
Result := UTF_8
|
|
else
|
|
if Pos('UCS-4', Value) > 0 then
|
|
Result := UCS_4
|
|
else
|
|
if Pos('UCS-2', Value) > 0 then
|
|
Result := UCS_2
|
|
else
|
|
if Pos('UNICODE', Value) = 1 then
|
|
Result := UCS_2
|
|
end;
|
|
|
|
{==============================================================================}
|
|
|
|
function GetIDFromCP(Value: TMimeChar): string;
|
|
begin
|
|
case Value of
|
|
ISO_8859_2:
|
|
Result := 'ISO-8859-2';
|
|
ISO_8859_3:
|
|
Result := 'ISO-8859-3';
|
|
ISO_8859_4:
|
|
Result := 'ISO-8859-4';
|
|
ISO_8859_5:
|
|
Result := 'ISO-8859-5';
|
|
ISO_8859_6:
|
|
Result := 'ISO-8859-6';
|
|
ISO_8859_7:
|
|
Result := 'ISO-8859-7';
|
|
ISO_8859_8:
|
|
Result := 'ISO-8859-8';
|
|
ISO_8859_9:
|
|
Result := 'ISO-8859-9';
|
|
ISO_8859_10:
|
|
Result := 'ISO-8859-10';
|
|
CP1250:
|
|
Result := 'WINDOWS-1250';
|
|
CP1251:
|
|
Result := 'WINDOWS-1251';
|
|
CP1252:
|
|
Result := 'WINDOWS-1252';
|
|
CP1253:
|
|
Result := 'WINDOWS-1253';
|
|
CP1254:
|
|
Result := 'WINDOWS-1254';
|
|
CP1255:
|
|
Result := 'WINDOWS-1255';
|
|
CP1256:
|
|
Result := 'WINDOWS-1256';
|
|
CP1257:
|
|
Result := 'WINDOWS-1257';
|
|
CP1258:
|
|
Result := 'WINDOWS-1258';
|
|
KOI8_R:
|
|
Result := 'KOI8-R';
|
|
CP895:
|
|
Result := 'CP-895';
|
|
CP852:
|
|
Result := 'CP-852';
|
|
UCS_2:
|
|
Result := 'Unicode-1-1-UCS-2';
|
|
UCS_4:
|
|
Result := 'Unicode-1-1-UCS-4';
|
|
UTF_8:
|
|
Result := 'UTF-8';
|
|
UTF_7:
|
|
Result := 'UTF-7';
|
|
else
|
|
Result := 'ISO-8859-1';
|
|
end;
|
|
end;
|
|
|
|
{==============================================================================}
|
|
|
|
function NeedCharsetConversion(const Value: string): Boolean;
|
|
var
|
|
n: Integer;
|
|
begin
|
|
Result := False;
|
|
for n := 1 to Length(Value) do
|
|
if Ord(Value[n]) > 127 then
|
|
begin
|
|
Result := True;
|
|
Break;
|
|
end;
|
|
end;
|
|
|
|
{==============================================================================}
|
|
|
|
function IdealCharsetCoding(const Value: string; CharFrom: TMimeChar;
|
|
CharTo: TMimeSetChar): TMimeChar;
|
|
var
|
|
n, m: Integer;
|
|
min, x: Integer;
|
|
s, t: string;
|
|
begin
|
|
Result := ISO_8859_1;
|
|
s := '';
|
|
for n := 1 to Length(Value) do
|
|
if Ord(Value[n]) > 127 then
|
|
s := s + Value[n];
|
|
min := 128;
|
|
for n := Ord(Low(TMimeChar)) to Ord(High(TMimeChar)) do
|
|
if TMimeChar(n) in CharTo then
|
|
begin
|
|
t := CharsetConversion(s, CharFrom, TMimeChar(n));
|
|
x := 0;
|
|
for m := 1 to Length(t) do
|
|
if t[m] = NotFoundChar then
|
|
Inc(x);
|
|
if x < min then
|
|
begin
|
|
min := x;
|
|
Result := TMimeChar(n);
|
|
if x = 0 then
|
|
Break;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
end.
|