524 lines
12 KiB
Plaintext
524 lines
12 KiB
Plaintext
(*
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Copyright 2021, 2022 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 Languages;
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IMPORT Lines, Utils;
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CONST
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langText* = 0; langC* = 1; langOberon* = 2; langPascal* = 3;
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langFasm* = 4; langLua* = 5; langIni* = 6; langJSON* = 7;
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csLang = {langC, langOberon, langLua, langIni, langJSON};
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escLang* = {langC, langLua, langJSON};
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TYPE
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tLine = Lines.tLine;
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tKeyWords = RECORD
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words: ARRAY 200, 32 OF WCHAR; cnt: INTEGER
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END;
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tDelimiters = ARRAY 256 OF BOOLEAN;
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procGetStr = PROCEDURE (secName, keyName: ARRAY OF CHAR; VAR s: ARRAY OF CHAR);
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VAR
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KW: ARRAY 8 OF ARRAY 3 OF tKeyWords;
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Delim: ARRAY 8 OF tDelimiters;
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currentLang: INTEGER;
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fileExt: ARRAY 11 OF RECORD ext: ARRAY 8 OF CHAR; lang: INTEGER END;
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PROCEDURE isCS* (lang: INTEGER): BOOLEAN;
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RETURN lang IN csLang
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END isCS;
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PROCEDURE checkKW (s: ARRAY OF WCHAR; KW: tKeyWords): BOOLEAN;
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VAR
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i: INTEGER;
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BEGIN
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i := KW.cnt - 1;
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WHILE (i >= 0) & (s # KW.words[i]) DO
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DEC(i)
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END
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RETURN i >= 0
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END checkKW;
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PROCEDURE isKey* (s: ARRAY OF WCHAR; lang, kwSet: INTEGER): BOOLEAN;
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RETURN checkKW(s, KW[lang][kwSet - 1])
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END isKey;
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PROCEDURE isDelim* (c: WCHAR): BOOLEAN;
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VAR
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res: BOOLEAN;
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BEGIN
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IF c <= 0FFX THEN
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res := Delim[currentLang][ORD(c)]
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ELSE
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res := FALSE
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END
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RETURN res
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END isDelim;
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PROCEDURE SkipString* (line: tLine; VAR pos: INTEGER; n: INTEGER; lang: INTEGER);
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VAR
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quot, cur, prev: WCHAR;
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BEGIN
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quot := Lines.getChar(line, pos);
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cur := quot;
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prev := 0X;
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INC(pos);
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WHILE pos <= n DO
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IF lang IN escLang THEN
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prev := cur
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END;
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cur := Lines.getChar(line, pos);
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IF (cur = "\") & (prev = "\") THEN
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cur := 0X
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ELSIF (cur = quot) & (prev # "\") THEN
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n := 0; (* exit *)
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DEC(pos)
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END;
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INC(pos)
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END
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END SkipString;
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PROCEDURE SkipEsc* (line: tLine; VAR pos: INTEGER; n: INTEGER; lang: INTEGER);
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VAR
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c, c1: WCHAR;
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k: INTEGER;
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BEGIN
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IF pos < n THEN
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c := Lines.getChar(line, pos + 1);
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CASE lang OF
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|langC:
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IF Utils.inString(c, "abfnrtv\'?" + '"') THEN
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INC(pos)
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ELSIF Utils.isOct(c) THEN
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k := 0;
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REPEAT
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INC(pos);
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IF Utils.isOct(Lines.getChar(line, pos)) THEN
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INC(k)
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ELSE
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k := 0
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END
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UNTIL (k = 0) OR (k = 4);
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DEC(pos)
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ELSIF (c = "x") OR (c = "u") OR (c = "U") THEN
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c1 := c;
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k := 0;
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INC(pos);
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REPEAT
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INC(pos);
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c := Lines.getChar(line, pos);
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IF Utils.cap(c) THEN END;
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IF Utils.isHex(c) THEN
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INC(k)
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ELSE
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k := 0
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END;
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IF (c1 = "u") & (k = 5) OR (c1 = "U") & (k = 9) THEN
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k := 0
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END
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UNTIL k = 0;
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DEC(pos)
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END
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|langLua:
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IF Utils.inString(c, "abfnrtv\'[]" + '"') THEN
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INC(pos)
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END
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|langJSON:
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IF Utils.inString(c, 'bfnrt\/"') THEN
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INC(pos)
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ELSIF c = "u" THEN
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k := 0;
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INC(pos);
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REPEAT
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INC(pos);
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c := Lines.getChar(line, pos);
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IF Utils.cap(c) THEN END;
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IF Utils.isHex(c) THEN
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INC(k)
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ELSE
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k := 0
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END
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UNTIL (k = 0) OR (k = 5);
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DEC(pos)
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END
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END
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END
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END SkipEsc;
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PROCEDURE C (line: tLine; VAR depth, cond, pos: INTEGER; n: INTEGER);
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VAR
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c: WCHAR;
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BEGIN
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c := Lines.getChar(line, pos);
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IF depth = 0 THEN
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IF c = "/" THEN
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IF cond = 0 THEN
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cond := 1
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ELSE
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cond := 0;
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pos := n
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END
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ELSIF (c = "*") & (cond = 1) THEN
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depth := 1;
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cond := 0
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ELSIF (c = "'") OR (c = '"') THEN
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SkipString(line, pos, n, langC);
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cond := 0
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ELSE
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cond := 0
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END
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ELSIF depth = 1 THEN
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IF c = "*" THEN
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cond := 1
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ELSIF (c = "/") & (cond = 1) THEN
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cond := 0;
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depth := 0
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ELSE
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cond := 0
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END
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END
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END C;
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PROCEDURE LuaLong* (line: tLine; pos: INTEGER): INTEGER;
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VAR
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res: INTEGER;
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BEGIN
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res := -1;
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IF Lines.getChar(line, pos) = "[" THEN
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INC(pos);
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WHILE Lines.getChar(line, pos) = "=" DO
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INC(res);
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INC(pos)
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END;
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IF Lines.getChar(line, pos) = "[" THEN
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INC(res)
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ELSE
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res := -1
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END
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END
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RETURN res
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END LuaLong;
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PROCEDURE Lua (line: tLine; VAR depth, cond, pos: INTEGER; n: INTEGER);
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VAR
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c: WCHAR;
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k: INTEGER;
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BEGIN
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c := Lines.getChar(line, pos);
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IF depth = 0 THEN
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IF c = "-" THEN
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IF cond = 0 THEN
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cond := 1
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ELSE
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cond := 0;
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k := LuaLong(line, pos + 1);
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IF k >= 0 THEN
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depth := k*2 + 1
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ELSE
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pos := n
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END
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END
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ELSIF c = "[" THEN
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cond := 0;
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k := LuaLong(line, pos);
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IF k >= 0 THEN
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depth := (k + 1)*2
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END
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ELSIF (c = "'") OR (c = '"') THEN
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SkipString(line, pos, n, langLua);
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cond := 0
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ELSE
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cond := 0
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END
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ELSIF depth > 0 THEN
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IF (cond = 0) & (c = "]") THEN
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cond := 1
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ELSIF (cond >= 1) & (c = "=") THEN
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INC(cond)
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ELSIF (cond >= 1) & (c = "]") & (cond*2 - depth MOD 2 = depth) THEN
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depth := 0;
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cond := 0
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ELSE
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cond := 0
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END
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END
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END Lua;
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PROCEDURE Pascal (line: tLine; VAR depth, cond, pos: INTEGER; n: INTEGER);
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VAR
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c: WCHAR;
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BEGIN
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c := Lines.getChar(line, pos);
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IF depth = 0 THEN
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IF c = "(" THEN
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cond := 1
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ELSIF c = "/" THEN
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IF cond = 2 THEN
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cond := 0;
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pos := n
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ELSE
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cond := 2
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END
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ELSIF (c = "*") & (cond = 1) THEN
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depth := 2;
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cond := 0
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ELSIF c = "'" THEN
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SkipString(line, pos, n, langPascal);
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cond := 0
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ELSIF c = "{" THEN
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IF Lines.getChar(line, pos + 1) = "$" THEN
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depth := 3
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ELSE
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depth := 1
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END;
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cond := 0
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ELSE
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cond := 0
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END
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ELSIF depth IN {1, 3} THEN
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IF c = "}" THEN
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depth := 0
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END
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ELSIF depth = 2 THEN
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IF c = "*" THEN
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cond := 1
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ELSIF (c = ")") & (cond = 1) THEN
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depth := 0;
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cond := 0
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ELSE
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cond := 0
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END
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END
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END Pascal;
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PROCEDURE Oberon (line: tLine; VAR depth, cond, pos: INTEGER; n: INTEGER);
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VAR
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c: WCHAR;
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BEGIN
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c := Lines.getChar(line, pos);
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IF (depth = 0) & (c = "/") THEN
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IF cond = 3 THEN
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cond := 0;
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pos := n
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ELSE
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cond := 3
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END
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ELSIF (depth = 0) & ((c = "'") OR (c = '"')) THEN
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SkipString(line, pos, n, langOberon);
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cond := 0
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ELSIF c = "(" THEN
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cond := 1
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ELSIF c = "*" THEN
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IF cond = 1 THEN
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INC(depth);
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cond := 0
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ELSE
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cond := 2
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END
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ELSIF c = ")" THEN
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IF cond = 2 THEN
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IF depth > 0 THEN
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DEC(depth)
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END
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END;
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cond := 0
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ELSE
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cond := 0
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END;
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END Oberon;
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PROCEDURE Ini (line: tLine; VAR depth, cond, pos: INTEGER; n: INTEGER);
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VAR
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c: WCHAR;
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BEGIN
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cond := 0;
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c := Lines.getChar(line, pos);
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IF depth = 0 THEN
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IF c = ";" THEN
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pos := n
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ELSIF c = '"' THEN
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SkipString(line, pos, n, langIni)
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ELSIF c = "[" THEN
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depth := 1
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END
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ELSIF depth = 1 THEN
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IF c = "]" THEN
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depth := 0
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END
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END
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END Ini;
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PROCEDURE comments* (line: tLine; VAR depth, cond, pos: INTEGER; n: INTEGER; lang: INTEGER);
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BEGIN
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CASE lang OF
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|langText:
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|langFasm:
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|langC,
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langJSON: C(line, depth, cond, pos, n)
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|langOberon: Oberon(line, depth, cond, pos, n)
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|langPascal: Pascal(line, depth, cond, pos, n)
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|langLua: Lua(line, depth, cond, pos, n)
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|langIni: Ini(line, depth, cond, pos, n)
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END
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END comments;
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PROCEDURE EnterKW (s: ARRAY OF CHAR; VAR KW: tKeyWords);
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CONST
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SPACE = 20X; CR = 0DX; LF = 0AX; TAB = 9X; COMMA = ",";
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VAR
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i, j, k: INTEGER;
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PROCEDURE delim (c: CHAR): BOOLEAN;
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RETURN (c = COMMA) OR (c = SPACE) OR (c = CR) OR (c = LF) OR (c = TAB)
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END delim;
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BEGIN
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k := KW.cnt;
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i := 0;
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REPEAT
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j := 0;
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WHILE (s[i] # 0X) & ~delim(s[i]) DO
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KW.words[k, j] := WCHR(ORD(s[i]));
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INC(i);
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INC(j)
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END;
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KW.words[k, j] := 0X;
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INC(k);
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WHILE delim(s[i]) DO
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INC(i)
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END
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UNTIL s[i] = 0X;
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KW.cnt := k
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END EnterKW;
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PROCEDURE loadKW (VAR KW: ARRAY OF tKeyWords; VAR delim: tDelimiters; getStr: procGetStr; lang: ARRAY OF CHAR);
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VAR
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s: ARRAY 16*1024 OF CHAR;
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key: ARRAY 4 OF CHAR;
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i: INTEGER;
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BEGIN
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FOR i := 0 TO LEN(delim) - 1 DO
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delim[i] := FALSE
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END;
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getStr(lang, "delim", s);
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i := 0;
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WHILE s[i] # 0X DO
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delim[ORD(s[i])] := TRUE;
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INC(i)
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END;
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key := "KW1";
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FOR i := 0 TO 2 DO
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KW[i].cnt := 0;
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key[2] := CHR(ORD("1") + i);
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getStr(lang, key, s);
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EnterKW(s, KW[i])
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END
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END loadKW;
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PROCEDURE setCurLang* (lang: INTEGER);
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BEGIN
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currentLang := lang
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END setCurLang;
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PROCEDURE getLang* (ext: ARRAY OF CHAR): INTEGER;
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VAR
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i: INTEGER;
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BEGIN
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i := 0;
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WHILE (i < LEN(fileExt)) & (fileExt[i].ext # ext) DO
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INC(i)
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END;
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IF i < LEN(fileExt) THEN
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i := fileExt[i].lang
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ELSE
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i := langText
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END
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RETURN i
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END getLang;
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PROCEDURE getExt* (lang: INTEGER; VAR ext: ARRAY OF CHAR);
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VAR
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i: INTEGER;
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BEGIN
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i := 0;
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WHILE fileExt[i].lang # lang DO
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INC(i)
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END;
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COPY(fileExt[i].ext, ext);
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Utils.lowcase(ext)
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END getExt;
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PROCEDURE init* (getStr: procGetStr);
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BEGIN
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currentLang := langText;
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loadKW(KW[langText], Delim[langText], getStr, "lang_Text");
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loadKW(KW[langOberon], Delim[langOberon], getStr, "lang_Oberon");
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loadKW(KW[langC], Delim[langC], getStr, "lang_C");
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loadKW(KW[langPascal], Delim[langPascal], getStr, "lang_Pascal");
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loadKW(KW[langLua], Delim[langLua], getStr, "lang_Lua");
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loadKW(KW[langIni], Delim[langIni], getStr, "lang_Ini");
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loadKW(KW[langFasm], Delim[langFasm], getStr, "lang_Fasm");
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loadKW(KW[langJSON], Delim[langJSON], getStr, "lang_JSON");
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fileExt[ 0].ext := "OB07"; fileExt[ 0].lang := langOberon;
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fileExt[ 1].ext := "C"; fileExt[ 1].lang := langC;
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fileExt[ 2].ext := "H"; fileExt[ 2].lang := langC;
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fileExt[ 3].ext := "CPP"; fileExt[ 3].lang := langC;
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fileExt[ 4].ext := "PAS"; fileExt[ 4].lang := langPascal;
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fileExt[ 5].ext := "PP"; fileExt[ 5].lang := langPascal;
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fileExt[ 6].ext := "ASM"; fileExt[ 6].lang := langFasm;
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fileExt[ 7].ext := "LUA"; fileExt[ 7].lang := langLua;
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fileExt[ 8].ext := "INI"; fileExt[ 8].lang := langIni;
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fileExt[ 9].ext := "JSON"; fileExt[ 9].lang := langJSON;
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fileExt[10].ext := "TXT"; fileExt[10].lang := langText;
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END init;
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END Languages. |