140 lines
3.6 KiB
Plaintext
140 lines
3.6 KiB
Plaintext
(*
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Copyright 2021-2023 Anton Krotov
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This file is part of CEdit.
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CEdit is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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CEdit 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. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with CEdit. If not, see <http://www.gnu.org/licenses/>.
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*)
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MODULE Encodings;
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CONST
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CP866* = 0; CP1251* = 1; UTF8* = 2; UTF8BOM* = 3; (*UTF16LE* = 4;*)
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UNDEF* = ORD("?");
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EOL_CRLF* = 0; EOL_LF* = 1; EOL_CR* = 2;
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CR = 0DX; LF = 0AX;
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TYPE
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CP* = ARRAY 256 OF INTEGER;
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tEOL* = ARRAY 3 OF WCHAR;
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VAR
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cp1251*, cp866*: CP;
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names*: ARRAY 4, 16 OF WCHAR;
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UNI*: ARRAY 65536, 2 OF BYTE;
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eol*: ARRAY 3 OF tEOL;
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eolNames*: ARRAY 3, 16 OF WCHAR;
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PROCEDURE InitCP (VAR cp: CP);
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VAR
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i: INTEGER;
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BEGIN
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FOR i := 0H TO 7FH DO
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cp[i] := i
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END
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END InitCP;
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PROCEDURE Init8 (VAR cp: CP; VAR n: INTEGER; a, b, c, d, e, f, g, h: INTEGER);
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BEGIN
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cp[n] := a; INC(n);
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cp[n] := b; INC(n);
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cp[n] := c; INC(n);
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cp[n] := d; INC(n);
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cp[n] := e; INC(n);
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cp[n] := f; INC(n);
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cp[n] := g; INC(n);
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cp[n] := h; INC(n);
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END Init8;
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PROCEDURE InitCP1251 (VAR cp: CP);
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VAR
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n, i: INTEGER;
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BEGIN
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InitCP(cp);
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FOR i := 0410H TO 044FH DO
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cp[i - 350H] := i
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END;
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n := 80H;
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Init8(cp, n, 0402H, 0403H, 201AH, 0453H, 201EH, 2026H, 2020H, 2021H);
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Init8(cp, n, 20ACH, 2030H, 0409H, 2039H, 040AH, 040CH, 040BH, 040FH);
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Init8(cp, n, 0452H, 2018H, 2019H, 201CH, 201DH, 2022H, 2013H, 2014H);
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Init8(cp, n, UNDEF, 2122H, 0459H, 203AH, 045AH, 045CH, 045BH, 045FH);
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Init8(cp, n, 00A0H, 040EH, 045EH, 0408H, 00A4H, 0490H, 00A6H, 00A7H);
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Init8(cp, n, 0401H, 00A9H, 0404H, 00ABH, 00ACH, 00ADH, 00AEH, 0407H);
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Init8(cp, n, 00B0H, 00B1H, 0406H, 0456H, 0491H, 00B5H, 00B6H, 00B7H);
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Init8(cp, n, 0451H, 2116H, 0454H, 00BBH, 0458H, 0405H, 0455H, 0457H);
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END InitCP1251;
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PROCEDURE InitCP866 (VAR cp: CP);
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VAR
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n, i: INTEGER;
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BEGIN
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InitCP(cp);
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FOR i := 0410H TO 043FH DO
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cp[i - 390H] := i
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END;
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FOR i := 0440H TO 044FH DO
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cp[i - 360H] := i
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END;
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n := 0B0H;
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Init8(cp, n, 2591H, 2592H, 2593H, 2502H, 2524H, 2561H, 2562H, 2556H);
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Init8(cp, n, 2555H, 2563H, 2551H, 2557H, 255DH, 255CH, 255BH, 2510H);
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Init8(cp, n, 2514H, 2534H, 252CH, 251CH, 2500H, 253CH, 255EH, 255FH);
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Init8(cp, n, 255AH, 2554H, 2569H, 2566H, 2560H, 2550H, 256CH, 2567H);
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Init8(cp, n, 2568H, 2564H, 2565H, 2559H, 2558H, 2552H, 2553H, 256BH);
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Init8(cp, n, 256AH, 2518H, 250CH, 2588H, 2584H, 258CH, 2590H, 2580H);
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n := 0F0H;
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Init8(cp, n, 0401H, 0451H, 0404H, 0454H, 0407H, 0457H, 040EH, 045EH);
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Init8(cp, n, 00B0H, 2219H, 00B7H, 221AH, 2116H, 00A4H, 25A0H, 00A0H);
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END InitCP866;
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PROCEDURE setUNI;
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VAR
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i: INTEGER;
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BEGIN
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FOR i := 0 TO 65535 DO
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UNI[i, CP866] := UNDEF;
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UNI[i, CP1251] := UNDEF
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END;
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FOR i := 0 TO 255 DO
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UNI[cp1251[i], CP1251] := i;
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UNI[cp866[i], CP866] := i
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END
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END setUNI;
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BEGIN
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eol[EOL_CRLF] := CR + LF;
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eol[EOL_LF] := LF;
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eol[EOL_CR] := CR;
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eolNames[EOL_CRLF] := "CRLF";
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eolNames[EOL_LF] := "LF";
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eolNames[EOL_CR] := "CR";
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names[CP866] := "CP866";
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names[CP1251] := "CP1251";
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names[UTF8] := "UTF-8";
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names[UTF8BOM] := "UTF-8-BOM";
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InitCP1251(cp1251);
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InitCP866(cp866);
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setUNI
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END Encodings. |