diff --git a/src/shared/utils.pas b/src/shared/utils.pas
index f9d8ffafd927c2715bdf5e81907e0a752c4ae020..36d59ff8bd1d5c22606d8b62e4b0727c0e389cba 100644 (file)
--- a/src/shared/utils.pas
+++ b/src/shared/utils.pas
-{$MODE DELPHI}
+(* Copyright (C) DooM 2D:Forever Developers
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *)
+{$INCLUDE a_modes.inc}
unit utils;
interface
function Int64ToStrComma (i: Int64): AnsiString;
function UpCase1251 (ch: Char): Char;
+function LoCase1251 (ch: Char): Char;
// `true` if strings are equal; ignoring case for cp1251
function StrEquCI1251 (const s0, s1: AnsiString): Boolean;
function readUInt64BE (st: TStream): UInt64;
+type
+ TFormatStrFCallback = procedure (constref buf; len: SizeUInt);
+
+// returns formatted string if `writerCB` is `nil`, empty string otherwise
+function formatstrf (const fmt: AnsiString; args: array of const; writerCB: TFormatStrFCallback=nil): AnsiString;
+
+
implementation
end;
+function LoCase1251 (ch: Char): Char;
+begin
+ if ch < #128 then
+ begin
+ if (ch >= 'A') and (ch <= 'Z') then Inc(ch, 32);
+ end
+ else
+ begin
+ if (ch >= #192) and (ch <= #223) then
+ begin
+ Inc(ch, 32);
+ end
+ else
+ begin
+ case ch of
+ #168, #170, #175: Inc(ch, 16);
+ #161, #178: Inc(ch);
+ end;
+ end;
+ end;
+ result := ch;
+end;
+
+
function StrEquCI1251 (const s0, s1: AnsiString): Boolean;
var
i: Integer;
@@ -484,4 +531,548 @@ function readInt64BE (st: TStream): Int64; begin readIntegerBE(st, @result, 8);
function readUInt64BE (st: TStream): UInt64; begin readIntegerBE(st, @result, 8); end;
+// ////////////////////////////////////////////////////////////////////////// //
+{$IFDEF WINDOWS}
+function snprintf (buf: PAnsiChar; bufsize: SizeUInt; const fmt: PAnsiChar): SizeUInt; cdecl; varargs; external 'msvcrt.dll' name '_snprintf';
+{$ELSE}
+function snprintf (buf: PAnsiChar; bufsize: SizeUInt; const fmt: PAnsiChar): SizeUInt; cdecl; varargs; external 'libc' name 'snprintf';
+{$ENDIF}
+
+
+(*
+procedure conwriter (constref buf; len: SizeUInt);
+var
+ ss: ShortString;
+ slen: Integer;
+ b: PByte;
+begin
+ if (len < 1) then exit;
+ b := PByte(@buf);
+ while (len > 0) do
+ begin
+ if (len > 255) then slen := 255 else slen := Integer(len);
+ Move(b^, ss[1], len);
+ ss[0] := AnsiChar(slen);
+ write(ss);
+ b += slen;
+ len -= slen;
+ end;
+end;
+*)
+
+
+function formatstrf (const fmt: AnsiString; args: array of const; writerCB: TFormatStrFCallback=nil): AnsiString;
+const
+ PadSpaces: AnsiString = ' ';
+ PadZeroes: AnsiString = '00000000000000000000000000000000000000000000000000000000000000000000000';
+var
+ curarg: Integer = 0; // current arg in `args`
+ sign, fmtch: AnsiChar;
+ zeropad: Boolean;
+ width, prec: Integer; // width and precision
+ spos, epos: Integer;
+ ch: AnsiChar;
+ strbuf: array[0..256] of AnsiChar;
+ strblen: SizeUInt;
+ fmtbuf: array[0..256] of AnsiChar;
+ fmtblen: Integer;
+ pclen: Integer;
+ pc: PAnsiChar;
+
+ procedure writer (constref buf; len: SizeUInt);
+ var
+ ss: ShortString;
+ slen: Integer;
+ b: PByte;
+ begin
+ if (len < 1) then exit;
+ b := PByte(@buf);
+ if assigned(writerCB) then
+ begin
+ writerCB(b^, len);
+ end
+ else
+ begin
+ while (len > 0) do
+ begin
+ if (len > 255) then slen := 255 else slen := Integer(len);
+ Move(b^, ss[1], len);
+ ss[0] := AnsiChar(slen);
+ result += ss;
+ b += slen;
+ len -= slen;
+ end;
+ end;
+ end;
+
+ procedure xwrite (const s: AnsiString);
+ begin
+ if (Length(s) > 0) then writer(PAnsiChar(s)^, Length(s));
+ end;
+
+ procedure putFmtChar (ch: AnsiChar);
+ begin
+ fmtbuf[fmtblen] := ch;
+ Inc(fmtblen);
+ end;
+
+ procedure putFmtInt (n: Integer);
+ var
+ len: SizeUInt;
+ begin
+ len := snprintf(@fmtbuf[fmtblen], Length(fmtbuf)-fmtblen, '%d', n);
+ if (len > 0) then Inc(fmtblen, len);
+ end;
+
+ procedure buildCFormat (const pfx: AnsiString='');
+ var
+ f: Integer;
+ begin
+ fmtblen := 0;
+ for f := 1 to Length(pfx) do putFmtChar(pfx[f]);
+ putFmtChar('%');
+ if (sign <> ' ') then putFmtChar(sign);
+ if (width >= 0) then
+ begin
+ if (zeropad) then putFmtChar('0');
+ putFmtInt(width);
+ if (prec >= 0) then
+ begin
+ putFmtChar('.');
+ putFmtInt(prec);
+ end;
+ end;
+ putFmtChar(fmtch);
+ fmtbuf[fmtblen] := #0;
+ end;
+
+ procedure writeStrBuf ();
+ begin
+ if (strblen > 0) then writer(strbuf, strblen);
+ end;
+
+ function i642str (n: Int64; hex: Boolean; hexup: Boolean): PAnsiChar;
+ var
+ neg: Boolean;
+ xpos: Integer;
+ begin
+ if (n = $8000000000000000) then
+ begin
+ if hex then snprintf(@strbuf[0], Length(strbuf), '-8000000000000000')
+ else snprintf(@strbuf[0], Length(strbuf), '-9223372036854775808');
+ result := @strbuf[0];
+ end
+ else
+ begin
+ neg := (n < 0);
+ if neg then n := -n;
+ xpos := High(strbuf);
+ strbuf[xpos] := #0; Dec(xpos);
+ repeat
+ if hex then
+ begin
+ strbuf[xpos] := AnsiChar((n mod 10)+48);
+ Dec(xpos);
+ n := n div 10;
+ end
+ else
+ begin
+ if (n mod 16 > 9) then
+ begin
+ strbuf[xpos] := AnsiChar((n mod 16)+48+7);
+ if not hexup then Inc(strbuf[xpos], 32);
+ end
+ else strbuf[xpos] := AnsiChar((n mod 16)+48);
+ Dec(xpos);
+ n := n div 16;
+ end;
+ until (n = 0);
+ if neg then begin strbuf[xpos] := '-'; Dec(xpos); end;
+ result := @strbuf[xpos+1];
+ end;
+ end;
+
+ function ui642str (n: UInt64; hex: Boolean; hexup: Boolean): PAnsiChar;
+ var
+ xpos: Integer;
+ begin
+ xpos := High(strbuf);
+ strbuf[xpos] := #0; Dec(xpos);
+ repeat
+ if hex then
+ begin
+ strbuf[xpos] := AnsiChar((n mod 10)+48);
+ Dec(xpos);
+ n := n div 10;
+ end
+ else
+ begin
+ if (n mod 16 > 9) then
+ begin
+ strbuf[xpos] := AnsiChar((n mod 16)+48+7);
+ if not hexup then Inc(strbuf[xpos], 32);
+ end
+ else strbuf[xpos] := AnsiChar((n mod 16)+48);
+ Dec(xpos);
+ n := n div 16;
+ end;
+ until (n = 0);
+ result := @strbuf[xpos+1];
+ end;
+
+ procedure indent (len: Integer);
+ var
+ ilen: Integer;
+ begin
+ while (len > 0) do
+ begin
+ if (len > Length(PadSpaces)) then ilen := Length(PadSpaces) else ilen := len;
+ writer(PAnsiChar(PadSpaces)^, ilen);
+ Dec(len, ilen);
+ end;
+ end;
+
+ procedure indent0 (len: Integer);
+ var
+ ilen: Integer;
+ begin
+ while (len > 0) do
+ begin
+ if (len > Length(PadZeroes)) then ilen := Length(PadZeroes) else ilen := len;
+ writer(PAnsiChar(PadZeroes)^, ilen);
+ Dec(len, ilen);
+ end;
+ end;
+
+begin
+ result := '';
+ spos := 1;
+ while (spos <= Length(fmt)) do
+ begin
+ // print literal part
+ epos := spos;
+ while (epos <= Length(fmt)) and (fmt[epos] <> '%') do Inc(epos);
+ // output literal part
+ if (epos > spos) then
+ begin
+ if (epos > Length(fmt)) then
+ begin
+ writer((PAnsiChar(fmt)+spos-1)^, epos-spos);
+ break;
+ end;
+ if (epos+1 > Length(fmt)) then Inc(epos) // last percent, output literally
+ else if (fmt[epos+1] = '%') then // special case
+ begin
+ Inc(epos);
+ writer((PAnsiChar(fmt)+spos-1)^, epos-spos);
+ spos := epos+1;
+ end
+ else
+ begin
+ writer((PAnsiChar(fmt)+spos-1)^, epos-spos);
+ spos := epos;
+ end;
+ continue;
+ end;
+ // check if we have argument for this format string
+ if (curarg > High(args)) then
+ begin
+ xwrite('<OUT OF ARGS>');
+ writer((PAnsiChar(fmt)+spos-1)^, Length(fmt)-spos+1);
+ break;
+ end;
+ // skip percent
+ if (spos+1 > Length(fmt)) then break; // oops
+ assert(fmt[spos] = '%');
+ Inc(spos);
+ // parse format; check for sign
+ if (fmt[spos] = '-') then begin sign := '-'; Inc(spos); end
+ else if (fmt[spos] = '+') then begin sign := '+'; Inc(spos); end
+ else sign := ' ';
+ // parse width
+ if (spos > Length(fmt)) then begin xwrite('<INVALID FORMAT>'); break; end;
+ if (sign <> ' ') or ((fmt[spos] >= '0') and (fmt[spos] <= '9')) then
+ begin
+ if (fmt[spos] < '0') or (fmt[spos] > '9') then begin xwrite('<INVALID FORMAT>'); writer((PAnsiChar(fmt)+spos-1)^, Length(fmt)-spos+1); break; end;
+ zeropad := (fmt[spos] = '0');
+ width := 0;
+ while (spos <= Length(fmt)) do
+ begin
+ ch := fmt[spos];
+ if (ch < '0') or (ch > '9') then break;
+ width := width*10+Integer(ch)-48;
+ Inc(spos);
+ end;
+ end
+ else
+ begin
+ width := -1;
+ zeropad := false;
+ end;
+ // parse precision
+ prec := -1;
+ if (spos <= Length(fmt)) and (fmt[spos] = '.') then
+ begin
+ Inc(spos);
+ if (spos > Length(fmt)) then begin xwrite('<INVALID FORMAT>'); break; end;
+ if (fmt[spos] < '0') or (fmt[spos] > '9') then begin xwrite('<INVALID FORMAT>'); writer((PAnsiChar(fmt)+spos-1)^, Length(fmt)-spos+1); break; end;
+ prec := 0;
+ while (spos <= Length(fmt)) do
+ begin
+ ch := fmt[spos];
+ if (ch < '0') or (ch > '9') then break;
+ prec := prec*10+Integer(ch)-48;
+ Inc(spos);
+ end;
+ end;
+ // get format char
+ if (spos > Length(fmt)) then begin xwrite('<INVALID FORMAT>'); break; end;
+ fmtch := fmt[spos];
+ Inc(spos);
+ // done parsing format, check for valid format chars
+ if not (fmtch in ['s','u','d','x','X','p','f','g','c']) then begin xwrite('<INVALID FORMAT CHAR>'); writer((PAnsiChar(fmt)+spos-1)^, Length(fmt)-spos+1); break; end;
+ // now write formatted string
+ case args[curarg].VType of
+ vtInteger: // args[curarg].VInteger
+ begin
+ if not (fmtch in ['s','u','d','x','X']) then begin xwrite('<INVALID FORMAT CHAR>'); writer((PAnsiChar(fmt)+spos-1)^, Length(fmt)-spos+1); break; end;
+ if (fmtch = 's') then fmtch := 'd';
+ buildCFormat();
+ strblen := snprintf(@strbuf[0], Length(strbuf), @fmtbuf[0], args[curarg].VInteger);
+ writeStrBuf();
+ end;
+ vtBoolean: // args[curarg].VBoolean
+ case fmtch of
+ 's':
+ begin
+ buildCFormat();
+ if args[curarg].VBoolean then strblen := snprintf(@strbuf[0], Length(strbuf), @fmtbuf[0], 'true')
+ else strblen := snprintf(@strbuf[0], Length(strbuf), @fmtbuf[0], 'false');
+ writeStrBuf();
+ end;
+ 'c':
+ begin
+ buildCFormat();
+ if args[curarg].VBoolean then strblen := snprintf(@strbuf[0], Length(strbuf), @fmtbuf[0], AnsiChar('t'))
+ else strblen := snprintf(@strbuf[0], Length(strbuf), @fmtbuf[0], AnsiChar('f'));
+ writeStrBuf();
+ end;
+ 'u', 'd', 'x', 'X':
+ begin
+ buildCFormat();
+ strblen := snprintf(@strbuf[0], Length(strbuf), @fmtbuf[0], Integer(args[curarg].VBoolean));
+ writeStrBuf();
+ end;
+ else
+ begin
+ xwrite('<INVALID FORMAT CHAR>');
+ writer((PAnsiChar(fmt)+spos-1)^, Length(fmt)-spos+1);
+ break;
+ end;
+ end;
+ vtChar: // args[curarg].VChar
+ case fmtch of
+ 's', 'c':
+ begin
+ fmtch := 'c';
+ buildCFormat();
+ strblen := snprintf(@strbuf[0], Length(strbuf), @fmtbuf[0], args[curarg].VChar);
+ writeStrBuf();
+ end;
+ 'u', 'd', 'x', 'X':
+ begin
+ buildCFormat();
+ strblen := snprintf(@strbuf[0], Length(strbuf), @fmtbuf[0], Integer(args[curarg].VChar));
+ writeStrBuf();
+ end;
+ else
+ begin
+ xwrite('<INVALID FORMAT CHAR>');
+ writer((PAnsiChar(fmt)+spos-1)^, Length(fmt)-spos+1);
+ break;
+ end;
+ end;
+ //vtWideChar: begin end; // args[curarg].VWideChar (WideChar)
+ vtExtended: // args[curarg].VExtended^
+ case fmtch of
+ 's', 'g':
+ begin
+ fmtch := 'g';
+ buildCFormat();
+ strblen := snprintf(@strbuf[0], Length(strbuf), @fmtbuf[0], Double(args[curarg].VExtended^));
+ writeStrBuf();
+ end;
+ 'f':
+ begin
+ buildCFormat();
+ strblen := snprintf(@strbuf[0], Length(strbuf), @fmtbuf[0], Double(args[curarg].VExtended^));
+ writeStrBuf();
+ end;
+ 'd':
+ begin
+ buildCFormat();
+ strblen := snprintf(@strbuf[0], Length(strbuf), @fmtbuf[0], Integer(trunc(args[curarg].VExtended^)));
+ writeStrBuf();
+ end;
+ 'u', 'x', 'X':
+ begin
+ buildCFormat();
+ strblen := snprintf(@strbuf[0], Length(strbuf), @fmtbuf[0], LongWord(trunc(args[curarg].VExtended^)));
+ writeStrBuf();
+ end;
+ else
+ begin
+ xwrite('<INVALID FORMAT CHAR>');
+ writer((PAnsiChar(fmt)+spos-1)^, Length(fmt)-spos+1);
+ break;
+ end;
+ end;
+ vtString: // args[curarg].VString^ (PShortString)
+ begin
+ if (sign <> '-') then indent(width-Length(args[curarg].VString^));
+ writer(args[curarg].VString^[1], Length(args[curarg].VString^));
+ if (sign = '-') then indent(width-Length(args[curarg].VString^));
+ end;
+ vtPointer: // args[curarg].VPointer
+ case fmtch of
+ 's':
+ begin
+ fmtch := 'x';
+ if (width < 8) then width := 8;
+ zeropad := true;
+ buildCFormat('0x');
+ strblen := snprintf(@strbuf[0], Length(strbuf), @fmtbuf[0], PtrUInt(args[curarg].VPointer));
+ writeStrBuf();
+ end;
+ 'u', 'd', 'x', 'p', 'X':
+ begin
+ if (fmtch = 'p') then fmtch := 'x';
+ if (width < 8) then width := 8;
+ zeropad := true;
+ buildCFormat('0x');
+ strblen := snprintf(@strbuf[0], Length(strbuf), @fmtbuf[0], PtrUInt(args[curarg].VPointer));
+ writeStrBuf();
+ end;
+ else
+ begin
+ xwrite('<INVALID FORMAT CHAR>');
+ writer((PAnsiChar(fmt)+spos-1)^, Length(fmt)-spos+1);
+ break;
+ end;
+ end;
+ vtPChar: // args[curarg].VPChar
+ if (args[curarg].VPChar = nil) then
+ begin
+ if (sign <> '-') then indent(width-3);
+ xwrite('nil');
+ if (sign = '-') then indent(width-3);
+ end
+ else
+ begin
+ pclen := 0;
+ while (args[curarg].VPChar[pclen] <> #0) do Inc(pclen);
+ if (sign <> '-') then indent(width-pclen);
+ writer(args[curarg].VPChar^, pclen);
+ if (sign = '-') then indent(width-pclen);
+ end;
+ vtObject: // args[curarg].VObject.Classname (TObject)
+ begin
+ if (sign <> '-') then indent(width-Length(args[curarg].VObject.Classname));
+ xwrite(args[curarg].VObject.Classname);
+ if (sign = '-') then indent(width-Length(args[curarg].VObject.Classname));
+ end;
+ vtClass: // args[curarg].VClass.Classname (TClass)
+ begin
+ if (sign <> '-') then indent(width-Length(args[curarg].VClass.Classname));
+ xwrite(args[curarg].VClass.Classname);
+ if (sign = '-') then indent(width-Length(args[curarg].VClass.Classname));
+ end;
+ //vtPWideChar: begin end; // args[curarg].VPWideChar (PWideChar)
+ vtAnsiString: // AnsiString(args[curarg].VAnsiString) (Pointer)
+ begin
+ if (sign <> '-') then indent(width-Length(AnsiString(args[curarg].VAnsiString)));
+ xwrite(AnsiString(args[curarg].VAnsiString));
+ if (sign = '-') then indent(width-Length(AnsiString(args[curarg].VAnsiString)));
+ end;
+ //vtCurrency: begin end; // args[curarg].VCurrency (PCurrency)
+ //vtVariant: begin end; // args[curarg].VVariant^ (PVariant)
+ //vtInterface: begin end; // args[curarg].VInterface (Pointer);
+ //vtWideString: begin end; // args[curarg].VWideString (Pointer);
+ vtInt64: // args[curarg].VInt64^ (PInt64)
+ begin
+ case fmtch of
+ 's','d','u': pc := i642str(args[curarg].VInt64^, false, false);
+ 'x': pc := i642str(args[curarg].VInt64^, true, false);
+ 'X': pc := i642str(args[curarg].VInt64^, true, true);
+ else begin xwrite('<INVALID FORMAT CHAR>'); writer((PAnsiChar(fmt)+spos-1)^, Length(fmt)-spos+1); break; end;
+ end;
+ pclen := 0;
+ while (pc[pclen] <> #0) do Inc(pclen);
+ if (sign <> '-') and (width > pclen) then
+ begin
+ if zeropad then
+ begin
+ if (pc[0] = '-') or (pc[0] = '+') then
+ begin
+ writer(pc^, 1);
+ indent0(width-pclen-1);
+ Inc(pc);
+ Dec(pclen);
+ end
+ else
+ begin
+ indent0(width-pclen);
+ end;
+ end
+ else
+ begin
+ indent(width-pclen);
+ end;
+ end;
+ writer(pc^, pclen);
+ if (sign = '-') then indent(width-pclen);
+ end;
+ vtQWord: // args[curarg].VQWord^ (PQWord)
+ begin
+ case fmtch of
+ 's','d','u': pc := ui642str(args[curarg].VInt64^, false, false);
+ 'x': pc := ui642str(args[curarg].VInt64^, true, false);
+ 'X': pc := ui642str(args[curarg].VInt64^, true, true);
+ else begin xwrite('<INVALID FORMAT CHAR>'); writer((PAnsiChar(fmt)+spos-1)^, Length(fmt)-spos+1); break; end;
+ end;
+ pclen := 0;
+ while (pc[pclen] <> #0) do Inc(pclen);
+ if (sign <> '-') then begin if zeropad then indent0(width-pclen) else indent(width-pclen); end;
+ writer(pc^, pclen);
+ if (sign = '-') then indent(width-pclen);
+ end;
+ else
+ begin
+ xwrite('<INVALID TYPE>');
+ writer((PAnsiChar(fmt)+spos-1)^, Length(fmt)-spos+1);
+ break;
+ end;
+ end;
+ Inc(curarg);
+ end;
+end;
+
+
+(*
+var
+ ss: ShortString;
+ ls: AnsiString;
+ i64: Int64 = -$A000000000;
+ ui64: UInt64 = $A000000000;
+begin
+ writef(conwriter, 'test int:<%s> bool:<%s:%02d:%c> bool:<%s:%02d:%c>; char:<%2s;%c;%d>!'#10, [42, true, true, true, false, false, false, 'A', 'A', 'A']);
+ writef(conwriter, 'test float:<%s;%u;%f;%g>'#10, [666.6942, 666.6942, 666.6942, 666.6942]);
+ ss := 'fuckit';
+ ls := 'FUCKIT';
+ writef(conwriter, 'test ss:<%5s;%040s>'#10, [ss, ss]);
+ writef(conwriter, 'test ls:<%5s;%040s>'#10, [ls, ls]);
+ writef(conwriter, 'test pointer:<%s;%x;%p>'#10, [@ss, @ss, @ss]);
+ writef(conwriter, 'test i64:<%s;%x;%015d;%u;%X>'#10, [i64, i64, i64, i64, i64]);
+ writef(conwriter, 'test ui64:<%s;%x;%15d;%015u;%X>'#10, [ui64, ui64, ui64, ui64, ui64]);
+*)
end.