X-Git-Url: https://deadsoftware.ru/gitweb?a=blobdiff_plain;f=src%2Fshared%2Futils.pas;h=9e136495bc8792dc661c3e4fa254ee58d24974a6;hb=223356cbae3197afc861efa6241c4ae91bd92885;hp=f9d8ffafd927c2715bdf5e81907e0a752c4ae020;hpb=ffd525f425556f81296ad45b6011791ffffb6eaf;p=d2df-sdl.git
diff --git a/src/shared/utils.pas b/src/shared/utils.pas
index f9d8ffa..9e13649 100644
--- a/src/shared/utils.pas
+++ b/src/shared/utils.pas
@@ -1,4 +1,19 @@
-{$MODE DELPHI}
+(* Copyright (C) DooM 2D:Forever Developers
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see .
+ *)
+{$INCLUDE a_modes.inc}
unit utils;
interface
@@ -7,6 +22,36 @@ uses
SysUtils, Classes;
+// ////////////////////////////////////////////////////////////////////////// //
+type
+ TUtf8DecoderFast = packed record
+ public
+ const Replacement = $FFFD; // replacement char for invalid unicode
+ const Accept = 0;
+ const Reject = 12;
+
+ private
+ state: LongWord;
+
+ public
+ codepoint: LongWord; // decoded codepoint (valid only when decoder is in "complete" state)
+
+ public
+ constructor Create (v: Boolean{fuck you, fpc});
+
+ procedure reset (); inline;
+
+ function complete (): Boolean; inline; // is current character complete? take `codepoint` then
+ function invalid (): Boolean; inline;
+ function completeOrInvalid (): Boolean; inline;
+
+ // process one byte, return `true` if codepoint is ready
+ function decode (b: Byte): Boolean; inline; overload;
+ function decode (c: AnsiChar): Boolean; inline; overload;
+ end;
+
+
+// ////////////////////////////////////////////////////////////////////////// //
// does filename have one of ".wad", ".pk3", ".zip" extensions?
function hasWadExtension (fn: AnsiString): Boolean;
@@ -20,6 +65,7 @@ function addWadExtension (fn: AnsiString): AnsiString;
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;
@@ -76,9 +122,429 @@ function readInt64BE (st: TStream): Int64;
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;
+
+function wchar2win (wc: WideChar): AnsiChar; inline;
+function utf2win (const s: AnsiString): AnsiString;
+function win2utf (const s: AnsiString): AnsiString;
+function digitInBase (ch: AnsiChar; base: Integer): Integer;
+
+// returns string in single or double quotes
+// single quotes supports only pascal-style '' for single quote char
+// double quotes supports c-style escapes
+// function will select quote mode automatically
+function quoteStr (const s: AnsiString): AnsiString;
+
+
+type
+ generic TSimpleList = class
+ private
+ type PItemT = ^ItemT;
+
+ public
+ type
+ TEnumerator = record
+ private
+ mItems: PItemT;
+ mCount: Integer;
+ mCurrent: Integer;
+ public
+ constructor Create (aitems: PItemT; acount: Integer);
+ function MoveNext: Boolean;
+ function getCurrent (): ItemT;
+ property Current: ItemT read getCurrent;
+ end;
+
+ private
+ mItems: array of ItemT;
+ mCount: Integer; // can be less than `mItems` size
+
+ private
+ function getAt (idx: Integer): ItemT; inline;
+ procedure setAt (idx: Integer; const it: ItemT); inline;
+
+ function getCapacity (): Integer; inline;
+ procedure setCapacity (v: Integer); inline;
+
+ public
+ constructor Create (acapacity: Integer=-1);
+ destructor Destroy (); override;
+
+ //WARNING! don't change list contents in `for ... in`!
+ function GetEnumerator (): TEnumerator;
+
+ procedure reset (); inline; // won't resize `mItems`
+ procedure clear (); inline;
+
+ procedure append (constref it: ItemT); inline;
+
+ public
+ property count: Integer read mCount;
+ property capacity: Integer read getCapacity write setCapacity;
+ property at[idx: Integer]: ItemT read getAt write setAt; default;
+ end;
+
+
implementation
+// ////////////////////////////////////////////////////////////////////////// //
+constructor TSimpleList.TEnumerator.Create (aitems: PItemT; acount: Integer);
+begin
+ mItems := aitems;
+ mCount := acount;
+ mCurrent := -1;
+end;
+
+function TSimpleList.TEnumerator.MoveNext: Boolean;
+begin
+ Inc(mCurrent);
+ result := (mCurrent < mCount);
+end;
+
+function TSimpleList.TEnumerator.getCurrent (): ItemT;
+begin
+ result := mItems[mCurrent];
+end;
+
+
+// ////////////////////////////////////////////////////////////////////////// //
+constructor TSimpleList.Create (acapacity: Integer=-1);
+begin
+ mItems := nil;
+ if (acapacity > 0) then SetLength(mItems, acapacity);
+ mCount := 0;
+end;
+
+
+destructor TSimpleList.Destroy ();
+begin
+ mItems := nil;
+ inherited;
+end;
+
+
+function TSimpleList.getCapacity (): Integer; inline;
+begin
+ result := Length(mItems);
+end;
+
+
+procedure TSimpleList.setCapacity (v: Integer); inline;
+begin
+ if (v < mCount) then v := mCount;
+ if (v <> Length(mItems)) then SetLength(mItems, v);
+end;
+
+
+function TSimpleList.GetEnumerator (): TEnumerator;
+begin
+ if (Length(mItems) > 0) then result := TEnumerator.Create(@mItems[0], mCount)
+ else result := TEnumerator.Create(nil, -1);
+end;
+
+
+procedure TSimpleList.reset (); inline;
+begin
+ mCount := 0;
+end;
+
+
+procedure TSimpleList.clear (); inline;
+begin
+ mItems := nil;
+ mCount := 0;
+end;
+
+
+function TSimpleList.getAt (idx: Integer): ItemT; inline;
+begin
+ if (idx >= 0) and (idx < mCount) then result := mItems[idx] else result := Default(ItemT);
+end;
+
+
+procedure TSimpleList.setAt (idx: Integer; const it: ItemT); inline;
+begin
+ if (idx >= 0) and (idx < mCount) then mItems[idx] := it;
+end;
+
+
+procedure TSimpleList.append (constref it: ItemT); inline;
+begin
+ if (mCount = Length(mItems)) then
+ begin
+ if (mCount = 0) then SetLength(mItems, 128) else SetLength(mItems, mCount*2);
+ end;
+ mItems[mCount] := it;
+ Inc(mCount);
+end;
+
+
+// ////////////////////////////////////////////////////////////////////////// //
+var
+ wc2shitmap: array[0..65535] of AnsiChar;
+ wc2shitmapInited: Boolean = false;
+
+
+// ////////////////////////////////////////////////////////////////////////// //
+const
+ cp1251: array[0..127] 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,$003F,$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
+ );
+
+
+procedure initShitMap ();
+var
+ f: Integer;
+begin
+ for f := 0 to High(wc2shitmap) do wc2shitmap[f] := '?';
+ for f := 0 to 127 do wc2shitmap[f] := AnsiChar(f);
+ for f := 0 to 127 do wc2shitmap[cp1251[f]] := AnsiChar(f+128);
+ wc2shitmapInited := true;
+end;
+
+
+// ////////////////////////////////////////////////////////////////////////// //
+// fast state-machine based UTF-8 decoder; using 8 bytes of memory
+// code points from invalid range will never be valid, this is the property of the state machine
+const
+ // see http://bjoern.hoehrmann.de/utf-8/decoder/dfa/
+ utf8dfa: array[0..$16c-1] of Byte = (
+ // maps bytes to character classes
+ $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 00-0f
+ $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 10-1f
+ $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 20-2f
+ $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 30-3f
+ $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 40-4f
+ $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 50-5f
+ $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 60-6f
+ $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00, // 70-7f
+ $01,$01,$01,$01,$01,$01,$01,$01,$01,$01,$01,$01,$01,$01,$01,$01, // 80-8f
+ $09,$09,$09,$09,$09,$09,$09,$09,$09,$09,$09,$09,$09,$09,$09,$09, // 90-9f
+ $07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07, // a0-af
+ $07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07,$07, // b0-bf
+ $08,$08,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02, // c0-cf
+ $02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02,$02, // d0-df
+ $0a,$03,$03,$03,$03,$03,$03,$03,$03,$03,$03,$03,$03,$04,$03,$03, // e0-ef
+ $0b,$06,$06,$06,$05,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08,$08, // f0-ff
+ // maps a combination of a state of the automaton and a character class to a state
+ $00,$0c,$18,$24,$3c,$60,$54,$0c,$0c,$0c,$30,$48,$0c,$0c,$0c,$0c, // 100-10f
+ $0c,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$00,$0c,$0c,$0c,$0c,$0c,$00, // 110-11f
+ $0c,$00,$0c,$0c,$0c,$18,$0c,$0c,$0c,$0c,$0c,$18,$0c,$18,$0c,$0c, // 120-12f
+ $0c,$0c,$0c,$0c,$0c,$0c,$0c,$18,$0c,$0c,$0c,$0c,$0c,$18,$0c,$0c, // 130-13f
+ $0c,$0c,$0c,$0c,$0c,$18,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$24, // 140-14f
+ $0c,$24,$0c,$0c,$0c,$24,$0c,$0c,$0c,$0c,$0c,$24,$0c,$24,$0c,$0c, // 150-15f
+ $0c,$24,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$0c,$0c);
+
+
+// ////////////////////////////////////////////////////////////////////////// //
+constructor TUtf8DecoderFast.Create (v: Boolean{fuck you, fpc}); begin state := Accept; codepoint := 0; end;
+
+procedure TUtf8DecoderFast.reset (); inline; begin state := Accept; codepoint := 0; end;
+
+function TUtf8DecoderFast.complete (): Boolean; inline; begin result := (state = Accept); end;
+function TUtf8DecoderFast.invalid (): Boolean; inline; begin result := (state = Reject); end;
+function TUtf8DecoderFast.completeOrInvalid (): Boolean; inline; begin result := (state = Accept) or (state = Reject); end;
+
+function TUtf8DecoderFast.decode (c: AnsiChar): Boolean; inline; overload; begin result := decode(Byte(c)); end;
+
+function TUtf8DecoderFast.decode (b: Byte): Boolean; inline; overload;
+var
+ tp: LongWord;
+begin
+ if (state = Reject) then begin state := Accept; codepoint := 0; end;
+ tp := utf8dfa[b];
+ if (state <> Accept) then codepoint := (b and $3f) or (codepoint shl 6) else codepoint := ($ff shr tp) and b;
+ state := utf8dfa[256+state+tp];
+ if (state = Reject) then begin codepoint := Replacement; state := Accept; end;
+ result := (state = Accept);
+end;
+
+
+// ////////////////////////////////////////////////////////////////////////// //
+function wchar2win (wc: WideChar): AnsiChar; inline;
+begin
+ if not wc2shitmapInited then initShitMap();
+ if (LongWord(wc) > 65535) then result := '?' else result := wc2shitmap[LongWord(wc)];
+end;
+
+
+// ////////////////////////////////////////////////////////////////////////// //
+function utf2win (const s: AnsiString): AnsiString;
+var
+ f, c: Integer;
+ ud: TUtf8DecoderFast;
+begin
+ for f := 1 to Length(s) do
+ begin
+ if (Byte(s[f]) > 127) then
+ begin
+ ud := TUtf8DecoderFast.Create(true);
+ result := '';
+ for c := 1 to Length(s) do
+ begin
+ if ud.decode(s[c]) then result += wchar2win(WideChar(ud.codepoint));
+ end;
+ exit;
+ end;
+ end;
+ result := s;
+end;
+
+
+function win2utf (const s: AnsiString): AnsiString;
+var
+ f, c: Integer;
+
+ function utf8Encode (code: Integer): AnsiString;
+ begin
+ if (code < 0) or (code > $10FFFF) then begin result := '?'; exit; end;
+ if (code <= $7f) then
+ begin
+ result := Char(code and $ff);
+ end
+ else if (code <= $7FF) then
+ begin
+ result := Char($C0 or (code shr 6));
+ result += Char($80 or (code and $3F));
+ end
+ else if (code <= $FFFF) then
+ begin
+ result := Char($E0 or (code shr 12));
+ result += Char($80 or ((code shr 6) and $3F));
+ result += Char($80 or (code and $3F));
+ end
+ else if (code <= $10FFFF) then
+ begin
+ result := Char($F0 or (code shr 18));
+ result += Char($80 or ((code shr 12) and $3F));
+ result += Char($80 or ((code shr 6) and $3F));
+ result += Char($80 or (code and $3F));
+ end
+ else
+ begin
+ result := '?';
+ end;
+ end;
+
+begin
+ for f := 1 to Length(s) do
+ begin
+ if (Byte(s[f]) > 127) then
+ begin
+ result := '';
+ for c := 1 to Length(s) do
+ begin
+ if (Byte(s[c]) < 128) then
+ begin
+ result += s[c];
+ end
+ else
+ begin
+ result += utf8Encode(cp1251[Byte(s[c])-128])
+ end;
+ end;
+ exit;
+ end;
+ end;
+ result := s;
+end;
+
+
+// ////////////////////////////////////////////////////////////////////////// //
+function digitInBase (ch: AnsiChar; base: Integer): Integer;
+begin
+ result := -1;
+ if (base < 1) or (base > 36) then exit;
+ if (ch < '0') then exit;
+ if (base <= 10) then
+ begin
+ if (Integer(ch) >= 48+base) then exit;
+ result := Integer(ch)-48;
+ end
+ else
+ begin
+ if (ch >= '0') and (ch <= '9') then begin result := Integer(ch)-48; exit; end;
+ if (ch >= 'a') and (ch <= 'z') then Dec(ch, 32); // poor man's tolower()
+ if (ch < 'A') or (Integer(ch) >= 65+(base-10)) then exit;
+ result := Integer(ch)-65+10;
+ end;
+end;
+
+
+// ////////////////////////////////////////////////////////////////////////// //
+function quoteStr (const s: AnsiString): AnsiString;
+
+ function squote (const s: AnsiString): AnsiString;
+ var
+ f: Integer;
+ begin
+ result := '''';
+ for f := 1 to Length(s) do
+ begin
+ if (s[f] = '''') then result += '''';
+ result += s[f];
+ end;
+ result += '''';
+ end;
+
+ function dquote (const s: AnsiString): AnsiString;
+ var
+ f: Integer;
+ ch: AnsiChar;
+ begin
+ result := '"';
+ for f := 1 to Length(s) do
+ begin
+ ch := s[f];
+ if (ch = #0) then result += '\z'
+ else if (ch = #9) then result += '\t'
+ else if (ch = #10) then result += '\n'
+ else if (ch = #13) then result += '\r'
+ else if (ch = #27) then result += '\e'
+ else if (ch < ' ') or (ch = #127) then
+ begin
+ result += '\x';
+ result += LowerCase(IntToHex(Integer(ch), 2));
+ end
+ else if (ch = '"') or (ch = '\') then
+ begin
+ result += '\';
+ result += ch;
+ end
+ else
+ begin
+ result += ch;
+ end;
+ end;
+ result += '"';
+ end;
+
+var
+ needSingle: Boolean = false;
+ f: Integer;
+begin
+ for f := 1 to Length(s) do
+ begin
+ if (s[f] = '''') then begin needSingle := true; continue; end;
+ if (s[f] < ' ') or (s[f] = #127) then begin result := dquote(s); exit; end;
+ end;
+ if needSingle then result := squote(s) else result := ''''+s+'''';
+end;
+
+
+// ////////////////////////////////////////////////////////////////////////// //
function hasWadExtension (fn: AnsiString): Boolean;
begin
fn := ExtractFileExt(fn);
@@ -154,6 +620,30 @@ begin
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 +974,548 @@ 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], slen);
+ 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('');
+ 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(''); 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(''); 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(''); break; end;
+ if (fmt[spos] < '0') or (fmt[spos] > '9') then begin xwrite(''); 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(''); 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(''); 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(''); 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('');
+ 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('');
+ 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('');
+ 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('');
+ 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(''); 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(''); 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('');
+ 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.