123 lines
3.3 KiB
Plaintext
123 lines
3.3 KiB
Plaintext
(*
|
|
Copyright 2021, 2022 Anton Krotov
|
|
|
|
This file is part of CEdit.
|
|
|
|
CEdit is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
CEdit is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with CEdit. If not, see <http://www.gnu.org/licenses/>.
|
|
*)
|
|
|
|
MODULE Search;
|
|
|
|
IMPORT
|
|
CB := Clipboard, List, Utils, SYSTEM;
|
|
|
|
|
|
TYPE
|
|
|
|
tBuffer* = CB.tBuffer;
|
|
|
|
IdxTable* = ARRAY 65536, 2 OF INTEGER;
|
|
|
|
tPos* = POINTER TO RECORD (List.tItem)
|
|
pos*: INTEGER
|
|
END;
|
|
|
|
|
|
PROCEDURE index* (text: tBuffer; VAR table: IdxTable; cs: BOOLEAN): tBuffer;
|
|
VAR
|
|
pChar, cnt, i: INTEGER;
|
|
c: WCHAR;
|
|
res: tBuffer;
|
|
BEGIN
|
|
pChar := text.dataPtr;
|
|
cnt := CB.bufSize(text) DIV SYSTEM.SIZE(WCHAR);
|
|
|
|
FOR i := 0 TO 65535 DO
|
|
table[i, 1] := 0
|
|
END;
|
|
|
|
i := cnt;
|
|
WHILE i > 0 DO
|
|
SYSTEM.GET(pChar, c);
|
|
IF ~cs & Utils.cap(c) THEN
|
|
SYSTEM.PUT(pChar, c)
|
|
END;
|
|
INC(table[ORD(c), 1]);
|
|
INC(pChar, SYSTEM.SIZE(WCHAR));
|
|
DEC(i)
|
|
END;
|
|
|
|
res := CB.create(cnt*SYSTEM.SIZE(INTEGER));
|
|
|
|
table[0, 0] := res.dataPtr;
|
|
FOR i := 1 TO 65535 DO
|
|
table[i, 0] := table[i - 1, 0] + table[i - 1, 1]*SYSTEM.SIZE(INTEGER)
|
|
END;
|
|
|
|
pChar := text.dataPtr;
|
|
i := 0;
|
|
WHILE i < cnt DO
|
|
SYSTEM.GET(pChar, c);
|
|
SYSTEM.PUT(table[ORD(c), 0], i);
|
|
INC(table[ORD(c), 0], SYSTEM.SIZE(INTEGER));
|
|
INC(pChar, SYSTEM.SIZE(WCHAR));
|
|
INC(i)
|
|
END;
|
|
|
|
FOR i := 0 TO 65535 DO
|
|
DEC(table[i, 0], table[i, 1]*SYSTEM.SIZE(INTEGER))
|
|
END
|
|
|
|
RETURN res
|
|
END index;
|
|
|
|
|
|
PROCEDURE find* (text: tBuffer; table: IdxTable; s: ARRAY OF WCHAR; whole: BOOLEAN; list: List.tList);
|
|
VAR
|
|
k, pos, n, x, prev_item_pos: INTEGER;
|
|
item: tPos;
|
|
c1, c2: WCHAR;
|
|
flag: BOOLEAN;
|
|
BEGIN
|
|
n := LENGTH(s);
|
|
k := table[ORD(s[0]), 1];
|
|
pos := table[ORD(s[0]), 0];
|
|
prev_item_pos := 0;
|
|
WHILE k > 0 DO
|
|
SYSTEM.GET(pos, x);
|
|
IF Utils.streq(text.dataPtr + x*SYSTEM.SIZE(WCHAR), SYSTEM.ADR(s[0]), n) THEN
|
|
flag := whole;
|
|
IF flag THEN
|
|
IF x > 0 THEN
|
|
SYSTEM.GET(text.dataPtr + (x - 1)*SYSTEM.SIZE(WCHAR), c1);
|
|
ELSE
|
|
c1 := 0X
|
|
END;
|
|
SYSTEM.GET(text.dataPtr + (x + n)*SYSTEM.SIZE(WCHAR), c2);
|
|
flag := Utils.isLetter(c1) OR Utils.isLetter(c2) OR Utils.isDigit(c1) OR Utils.isDigit(c2) OR (c1 = "_") OR (c2 = "_")
|
|
END;
|
|
IF ~flag & (x >= prev_item_pos) THEN
|
|
prev_item_pos := x + n;
|
|
NEW(item);
|
|
item.pos := x;
|
|
List.append(list, item)
|
|
END
|
|
END;
|
|
INC(pos, SYSTEM.SIZE(INTEGER));
|
|
DEC(k)
|
|
END
|
|
END find;
|
|
|
|
|
|
END Search. |