lazarus/components/turbopower_ipro/iphtmlutils.pas

663 lines
21 KiB
ObjectPascal

unit IpHtmlUtils;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, Graphics, Forms,
IpHtmlTypes;
function ColorFromString(S: String): TColor;
function TryColorFromString(S: String; out AColor: TColor; out AErrMsg: String): Boolean;
function GetAlignmentForStr(S: string; ADefault: TIpHtmlAlign = haDefault): TIpHtmlAlign;
function AnsiToEscape(const S: string): string;
function EscapeToAnsi(const S: string): string;
function NoBreakToSpace(const S: string): string;
function FindFontName(const AFontList: string): string;
function MaxI2(const I1, I2: Integer) : Integer;
function MinI2(const I1, I2: Integer) : Integer;
implementation
uses
Translations, LazUTF8,
IpConst,IpUtils;
const
htmlNamedColors: array[0..140] of record
s: string;
c: TColor;
end = ( // alphabetically ordered
(s:'ALICEBLUE'; c:$FFF8F0),
(s:'ANTIQUEWHITE'; c:$D7EBFA),
(s:'AQUA'; c: $FFFF00),
(s:'AQUAMARINE'; c:$D4FF7F),
(s:'AZURE'; c:$FFFFF0),
(s:'BEIGE'; c:$DCF5F5),
(s:'BISQUE'; c:$C4E4FF),
(s:'BLACK'; c:clBlack),
(s:'BLANCHEDALMOND'; c:$CDEBFF),
(s:'BLUE'; c:$FF0000),
(s:'BLUEVIOLET'; c:$E22B8A),
(s:'BROWN'; c:$2A2AA5),
(s:'BURLYWOOD'; c:$87B8DE),
(s:'CADETBLUE'; c:$A09E5F),
(s:'CHARTREUSE'; c:$00FF7F),
(s:'CHOCOLATE'; c:$1E69D2),
(s:'CORAL'; c:$507FFF),
(s:'CORNFLOWERBLUE'; c:$ED9564),
(s:'CORNSILK'; c:$DCF8FF),
(s:'CRIMSON'; c:$3C14DC),
(s:'CYAN'; c: $FFFF00),
(s:'DARKBLUE'; c:$8B0000),
(s:'DARKCYAN'; c:$8B8B00),
(s:'DARKGOLDENROD'; c:$0B86B8),
(s:'DARKGRAY'; c:$A9A9A9),
(s:'DARKGREEN'; c:$006400),
(s:'DARKKHAKI'; c:$6BB7BD),
(s:'DARKMAGENTA'; c:$8B008B),
(s:'DARKOLIVEGREEN'; c:$2F6B55),
(s:'DARKORANGE'; c:$008CFF),
(s:'DARKORCHID'; c:$CC3299),
(s:'DARKRED'; c:$00008B),
(s:'DARKSALMON'; c:$7A96E9),
(s:'DARKSEAGREEN'; c:$8FBC8F),
(s:'DARKSLATEBLUE' ; c:$8B3D48),
(s:'DARKSLATEGRAY'; c:$4F4F2F),
(s:'DARKTURQUOISE'; c:$D1CE00),
(s:'DARKVIOLET'; c:$D30094),
(s:'DARKYELLOW'; c:$008080),
(s:'DEEPPINK'; c:$9314FF),
(s:'DEEPSKYBLUE'; c:$FFBF00),
(s:'DIMGRAY'; c:$696969),
(s:'DODGERBLUE'; c:$FF901E),
(s:'FIREBRICK'; c:$2222B2),
(s:'FLORALWHITE'; c:$F0FAFF),
(s:'FORESTGREEN'; c:$228B22),
(s:'FUCHSIA'; c:$FF00FF),
(s:'GAINSBORO'; c:$DCDCDC),
(s:'GHOSTWHITE'; c:$FFF8F8),
(s:'GOLD'; c:$00D7FF),
(s:'GOLDENROD'; c:$20A5DA),
(s:'GRAY'; c:$808080),
(s:'GREEN'; c:$008000),
(s:'GREENYELLOW'; c:$2FFFAD),
(s:'HONEYDEW'; c:$F0FFF0),
(s:'HOTPINK'; c:$B469FF),
(s:'INDIANRED'; c:$5C5CCD),
(s:'INDIGO'; c:$82004B),
(s:'IVORY'; c:$F0FFFF),
(s:'KHAKI'; c:$8CE6F0),
(s:'LAVENDER'; c:$FAE6E6),
(s:'LAVENDERBLUSH'; c:$F5F0FF),
(s:'LAWNGREEN'; c:$00FC7C),
(s:'LEMONCHIFFON'; c:$CDFAFF),
(s:'LIGHTBLUE'; c:$E6D8AD),
(s:'LIGHTCORAL'; c:$8080F0),
(s:'LIGHTCYAN'; c:$FFFFE0),
(s:'LIGHTGOLDENRODYELLOW'; c:$D2FAFA),
(s:'LIGHTGREEN'; c:$90EE90),
(s:'LIGHTGREY'; c:$D3D3D3),
(s:'LIGHTPINK'; c:$C1B6FF),
(s:'LIGHTSALMON'; c:$7AA0FF),
(s:'LIGHTSEAGREEN'; c:$AAB220),
(s:'LIGHTSKYBLUE'; c:$FACE87),
(s:'LIGHTSLATEGRAY'; c:$998877),
(s:'LIGHTSTEELBLUE'; c:$DEC4B0),
(s:'LIGHTYELLOW'; c:$E0FFFF),
(s:'LIME'; c:$00FF00),
(s:'LIMEGREEN'; c:$32CD32),
(s:'LINEN'; c:$E6F0FA),
(s:'MAGENTA'; c:$FF00FF),
(s:'MAROON'; c:$000080),
(s:'MEDIUMAQUAMARINE'; c:$AACD66),
(s:'MEDIUMBLUE'; c:$CD0000),
(s:'MEDIUMORCHID'; c:$D355BA),
(s:'MEDIUMPURPLE'; c:$DB7093),
(s:'MEDIUMSEAGREEN'; c:$71B33C),
(s:'MEDIUMSLATEBLUE'; c:$EE687B),
(s:'MEDIUMSPRINGGREEN'; c:$9AFA00),
(s:'MEDIUMTURQUOISE'; c:$CCD148),
(s:'MEDIUMVIOLETRED'; c:$8515C7),
(s:'MIDNIGHTBLUE'; c:$701919),
(s:'MINTCREAM'; c:$FAFFF5),
(s:'MISTYROSE'; c:$E1E4FF),
(s:'MOCCASIN'; c:$B5E4FF),
(s:'NAVAJOWHITE'; c:$ADDEFF),
(s:'NAVY'; c:$800000),
(s:'OLDLACE'; c:$E6F5FD),
(s:'OLIVE'; c:$008080),
(s:'OLIVEDRAB'; c:$238E6B),
(s:'ORANGE'; c:$00A5FF),
(s:'ORANGERED'; c:$0045FF),
(s:'ORCHID'; c:$D670DA),
(s:'PALEGOLDENROD'; c:$AAE8EE),
(s:'PALEGREEN'; c:$98FB98),
(s:'PALETURQUOISE'; c:$EEEEAF),
(s:'PALEVIOLETRED'; c:$9370DB),
(s:'PAPAYAWHIP'; c:$D5EFFF),
(s:'PEACHPUFF'; c:$B9DAFF),
(s:'PERU'; c:$3F85CD),
(s:'PINK'; c:$CBC0FF),
(s:'PLUM'; c:$DDA0DD),
(s:'POWDERBLUE'; c:$E6E0B0),
(s:'PURPLE'; c:$800080),
(s:'RED'; c:$0000FF),
(s:'ROSYBROWN'; c:$8F8FBC),
(s:'ROYALBLUE'; c:$901604),
(s:'SADDLEBROWN'; c:$13458B),
(s:'SALMON'; c:$7280FA),
(s:'SANDYBROWN'; c:$60A4F4),
(s:'SEAGREEN'; c:$578B2E),
(s:'SEASHELL'; c:$EEF5FF),
(s:'SIENNA'; c:$2D52A0),
(s:'SILVER'; c:$C0C0C0),
(s:'SKYBLUE'; c:$EBCE87),
(s:'SLATEBLUE'; c:$CD5A6A),
(s:'SLATEGRAY'; c:$908070),
(s:'SNOW'; c:$FAFAFF),
(s:'SPRINGGREEN'; c:$7FFF00),
(s:'STEELBLUE'; c:$B48246),
(s:'TAN'; c:$8CB4D2),
(s:'TEAL'; c:$808000),
(s:'THISTLE'; c:$D8BFD8),
(s:'TOMATO'; c:$4763FF),
(s:'TURQUOISE'; c:$D0E040),
(s:'VIOLET'; c:$EE82EE),
(s:'WHEAT'; c:$B3DEF5),
(s:'WHITE'; c:$FFFFFF),
(s:'WHITESMOKE'; c:$F5F5F5),
(s:'YELLOW'; c:$00FFFF),
(s:'YELLOWGREEN'; c:$32CD9A)
);
function BinSearchNamedColor(const AColorStr: string; var AColor: TColor): boolean;
var
First: Integer;
Last: Integer;
Pivot: Integer;
begin
First := Low(htmlNamedColors); //Sets the first item of the range
Last := High(htmlNamedColors); //Sets the last item of the range
Result := False; //Initializes the Found flag (Not found yet)
//If First > Last then the searched item doesn't exist
//If the item is found the loop will stop
while (First <= Last) {and (not Result)} do
begin
//Gets the middle of the selected range
Pivot := (First + Last) div 2;
//Compares the String in the middle with the searched one
if htmlNamedColors[Pivot].s = AColorStr then
begin
Result := True;
AColor := htmlNamedColors[Pivot].c;
exit;
end
//If the Item in the middle has a bigger value than
//the searched item, then select the first half
else if htmlNamedColors[Pivot].s > AColorStr then
Last := Pivot - 1
//else select the second half
else
First := Pivot + 1;
end;
end;
function TryColorFromString(S: String; out AColor: TColor; out AErrMsg: String): Boolean;
var
R, G, B, Err: Integer;
begin
Result := false;
AColor := clNone;
if S = '' then
begin
Result := true;
Exit;
end;
S := UpperCase(S);
if S[1] = '#' then
begin
if Length(S) <> 7 then
begin
AErrMsg := SHtmlInvColor + S;
Result := false;
end
else begin
val('$'+Copy(S,2,2), R, Err);
if Err <> 0 then
R := 255;
val('$'+Copy(S,4,2), G, Err);
if Err <> 0 then
G := 255;
val('$'+Copy(S,6,2), B, Err);
if Err <> 0 then
B := 255;
AColor := RGBToColor(R, G, B);
Result := true;
end;
end else
if BinSearchNamedColor(S, AColor) then
begin
Result := true;
exit;
end else
if Length(S) = 6 then
try
val('$'+Copy(S,1,2), R, Err);
if Err <> 0 then
R := 255;
val('$'+Copy(S,3,2), G, Err);
if Err <> 0 then
G := 255;
val('$'+Copy(S,5,2), B, Err);
if Err <> 0 then
B := 255;
AColor := RGBToColor(R, G, B);
Result := true;
except
AErrMsg := SHtmlInvColor + S;
end;
end;
function ColorFromString(S: String): TColor;
var
msg: String;
begin
if not TryColorFromString(S, Result, msg) then
Result := clNone;
end;
function GetAlignmentForStr(S: string;
ADefault: TIpHtmlAlign = haDefault): TIpHtmlAlign;
begin
S := UpperCase(S);
if Length(S) = 0 then
begin
Result := ADefault;
exit;
end;
case S[1] of
'C','M':
if S = 'CHAR' then
Result := haChar
else if (S = 'CENTER') or (S = 'MIDDLE') then
Result := haCenter;
'J':
if S = 'JUSTIFY' then Result := haJustify;
'L':
if (S = 'LEFT') then Result := haLeft;
'R':
if S = 'RIGHT' then Result := haRight;
else
Result := ADefault;
end;
end;
const
CodeCount = 126;
{Sorted by Size where size is Length(Name).
Make sure you respect this when adding new items}
Codes: array[0..Pred(CodeCount)] of record
Size: Integer;
Name: String;
Value: String;
ValueUtf8: String; //UTF8 DiBo33
end = (
(Size: 2; Name: 'gt'; Value: '>'; ValueUtf8: #$3E),
(Size: 2; Name: 'lt'; Value: '<'; ValueUtf8: #$3C),
(Size: 3; Name: 'amp'; Value: '&'; ValueUtf8: #$26),
(Size: 3; Name: 'deg'; Value: #176; ValueUtf8: #$C2#$B0),
(Size: 3; Name: 'ETH'; Value: #208; ValueUtf8: #$C3#$90),
(Size: 3; Name: 'eth'; Value: #240; ValueUtf8: #$C3#$B0),
(Size: 3; Name: 'not'; Value: #172; ValueUtf8: #$C2#$AC),
(Size: 3; Name: 'reg'; Value: #174; ValueUtf8: #$C2#$AE),
(Size: 3; Name: 'shy'; Value: ShyChar; ValueUtf8: ShyChar),
(Size: 3; Name: 'uml'; Value: #168; ValueUtf8: #$C2#$A8),
(Size: 3; Name: 'yen'; Value: #165; ValueUtf8: #$C2#$A5),
(Size: 4; Name: 'Auml'; Value: #196; ValueUtf8: #$C3#$84),
(Size: 4; Name: 'auml'; Value: #228; ValueUtf8: #$C3#$A4),
(Size: 4; Name: 'bull'; Value: #149; ValueUtf8: #$E2#$80#$A2),
(Size: 4; Name: 'cent'; Value: #162; ValueUtf8: #$C2#$A2),
(Size: 4; Name: 'circ'; Value: '^'; ValueUtf8: #$5E),
(Size: 4; Name: 'copy'; Value: #169; ValueUtf8: #$C2#$A9),
(Size: 4; Name: 'Euml'; Value: #203; ValueUtf8: #$C3#$8B),
(Size: 4; Name: 'euml'; Value: #235; ValueUtf8: #$C3#$AB),
(Size: 4; Name: 'euro'; Value: #128; ValueUtf8: #$E2#$82#$AC),
(Size: 4; Name: 'fnof'; Value: #131; ValueUtf8: #$C6#$92),
(Size: 4; Name: 'Iuml'; Value: #207; ValueUtf8: #$C3#$8F),
(Size: 4; Name: 'iuml'; Value: #239; ValueUtf8: #$C3#$AF),
(Size: 4; Name: 'macr'; Value: #175; ValueUtf8: #$C2#$AF),
(Size: 4; Name: 'nbsp'; Value: NbspChar; ValueUtf8: NbspChar),
(Size: 4; Name: 'ordf'; Value: #170; ValueUtf8: #$C2#$AA),
(Size: 4; Name: 'ordm'; Value: #186; ValueUtf8: #$C2#$BA),
(Size: 4; Name: 'Ouml'; Value: #214; ValueUtf8: #$C3#$96),
(Size: 4; Name: 'ouml'; Value: #246; ValueUtf8: #$C3#$B6),
(Size: 4; Name: 'para'; Value: #182; ValueUtf8: #$C2#$B6),
(Size: 4; Name: 'quot'; Value: '"'; ValueUtf8: #$22),
(Size: 4; Name: 'sect'; Value: #167; ValueUtf8: #$C2#$A7),
(Size: 4; Name: 'sup1'; Value: #185; ValueUtf8: #$C2#$B9),
(Size: 4; Name: 'sup2'; Value: #178; ValueUtf8: #$C2#$B2),
(Size: 4; Name: 'sup3'; Value: #179; ValueUtf8: #$C2#$B3),
(Size: 4; Name: 'Uuml'; Value: #220; ValueUtf8: #$C3#$9C),
(Size: 4; Name: 'uuml'; Value: #252; ValueUtf8: #$C3#$BC),
(Size: 4; Name: 'Yuml'; Value: #159; ValueUtf8: #$C5#$B8),
(Size: 4; Name: 'yuml'; Value: #255; ValueUtf8: #$C3#$BF),
(Size: 5; Name: 'Acirc'; Value: #194; ValueUtf8: #$C3#$82),
(Size: 5; Name: 'acirc'; Value: #226; ValueUtf8: #$C3#$A2),
(Size: 5; Name: 'acute'; Value: #180; ValueUtf8: #$C2#$B4),
(Size: 5; Name: 'AElig'; Value: #198; ValueUtf8: #$C3#$86),
(Size: 5; Name: 'aelig'; Value: #230; ValueUtf8: #$C3#$A6),
(Size: 5; Name: 'Aring'; Value: #197; ValueUtf8: #$C3#$85),
(Size: 5; Name: 'aring'; Value: #229; ValueUtf8: #$C3#$A5),
(Size: 5; Name: 'cedil'; Value: #184; ValueUtf8: #$C2#$B8),
(Size: 5; Name: 'Ecirc'; Value: #202; ValueUtf8: #$C3#$8A),
(Size: 5; Name: 'ecirc'; Value: #234; ValueUtf8: #$C3#$AA),
(Size: 5; Name: 'frasl'; Value: '/'; ValueUtf8: #$2F),
(Size: 5; Name: 'Icirc'; Value: #206; ValueUtf8: #$C3#$8E),
(Size: 5; Name: 'icirc'; Value: #238; ValueUtf8: #$C3#$AE),
(Size: 5; Name: 'iexcl'; Value: #161; ValueUtf8: #$C2#$A1),
(Size: 5; Name: 'laquo'; Value: #171; ValueUtf8: #$C2#$AB),
(Size: 5; Name: 'ldquo'; Value: #147; ValueUtf8: #$E2#$80#$9C),
(Size: 5; Name: 'lsquo'; Value: #145; ValueUtf8: #$E2#$80#$98),
(Size: 5; Name: 'mdash'; Value: #151; ValueUtf8: #$E2#$80#$94),
(Size: 5; Name: 'micro'; Value: #181; ValueUtf8: #$C2#$B5),
(Size: 5; Name: 'minus'; Value: '-'; ValueUtf8: #$2D),
(Size: 5; Name: 'ndash'; Value: #150; ValueUtf8: #$E2#$80#$93),
(Size: 5; Name: 'Ocirc'; Value: #212; ValueUtf8: #$C3#$94),
(Size: 5; Name: 'ocirc'; Value: #244; ValueUtf8: #$C3#$B4),
(Size: 5; Name: 'OElig'; Value: #140; ValueUtf8: #$C5#$92),
(Size: 5; Name: 'oelig'; Value: #156; ValueUtf8: #$C5#$93),
(Size: 5; Name: 'pound'; Value: #163; ValueUtf8: #$C2#$A3),
(Size: 5; Name: 'raquo'; Value: #187; ValueUtf8: #$C2#$BB),
(Size: 5; Name: 'rdquo'; Value: #148; ValueUtf8: #$E2#$80#$9D),
(Size: 5; Name: 'rsquo'; Value: #146; ValueUtf8: #$E2#$80#$99),
(Size: 5; Name: 'szlig'; Value: #223; ValueUtf8: #$C3#$9F),
(Size: 5; Name: 'THORN'; Value: #222; ValueUtf8: #$C3#$9E),
(Size: 5; Name: 'thorn'; Value: #254; ValueUtf8: #$C3#$BE),
(Size: 5; Name: 'tilde'; Value: '~'; ValueUtf8: #$7E),
(Size: 5; Name: 'times'; Value: #215; ValueUtf8: #$C3#$97),
(Size: 5; Name: 'trade'; Value: #153; ValueUtf8: #$E2#$84#$A2),
(Size: 5; Name: 'Ucirc'; Value: #219; ValueUtf8: #$C3#$9B),
(Size: 5; Name: 'ucirc'; Value: #251; ValueUtf8: #$C3#$BB),
(Size: 6; Name: 'Aacute'; Value: #193; ValueUtf8: #$C3#$81),
(Size: 6; Name: 'aacute'; Value: #225; ValueUtf8: #$C3#$A1),
(Size: 6; Name: 'Agrave'; Value: #192; ValueUtf8: #$C3#$80),
(Size: 6; Name: 'agrave'; Value: #224; ValueUtf8: #$C3#$A0),
(Size: 6; Name: 'Atilde'; Value: #195; ValueUtf8: #$C3#$83),
(Size: 6; Name: 'atilde'; Value: #227; ValueUtf8: #$C3#$A3),
(Size: 6; Name: 'brvbar'; Value: #166; ValueUtf8: #$C2#$A6),
(Size: 6; Name: 'Ccedil'; Value: #199; ValueUtf8: #$C3#$87),
(Size: 6; Name: 'ccedil'; Value: #231; ValueUtf8: #$C3#$A7),
(Size: 6; Name: 'curren'; Value: #164; ValueUtf8: #$C2#$A4),
(Size: 6; Name: 'dagger'; Value: #134; ValueUtf8: #$E2#$80#$A0),
(Size: 6; Name: 'Dagger'; Value: #135; ValueUtf8: #$E2#$80#$A1),
(Size: 6; Name: 'divide'; Value: #247; ValueUtf8: #$C3#$B7),
(Size: 6; Name: 'Eacute'; Value: #201; ValueUtf8: #$C3#$89),
(Size: 6; Name: 'eacute'; Value: #233; ValueUtf8: #$C3#$A9),
(Size: 6; Name: 'Egrave'; Value: #200; ValueUtf8: #$C3#$88),
(Size: 6; Name: 'egrave'; Value: #232; ValueUtf8: #$C3#$A8),
(Size: 6; Name: 'frac12'; Value: #189; ValueUtf8: #$C2#$BD),
(Size: 6; Name: 'frac14'; Value: #188; ValueUtf8: #$C2#$BC),
(Size: 6; Name: 'frac34'; Value: #190; ValueUtf8: #$C2#$BE),
(Size: 6; Name: 'hellip'; Value: #133; ValueUtf8: #$E2#$80#$A6),
(Size: 6; Name: 'Iacute'; Value: #205; ValueUtf8: #$C3#$8D),
(Size: 6; Name: 'iacute'; Value: #237; ValueUtf8: #$C3#$AD),
(Size: 6; Name: 'Igrave'; Value: #204; ValueUtf8: #$C3#$8C),
(Size: 6; Name: 'igrave'; Value: #236; ValueUtf8: #$C3#$AC),
(Size: 6; Name: 'iquest'; Value: #191; ValueUtf8: #$C2#$BF),
(Size: 6; Name: 'lsaquo'; Value: #139; ValueUtf8: #$E2#$80#$B9),
(Size: 6; Name: 'middot'; Value: #183; ValueUtf8: #$C2#$B7),
(Size: 6; Name: 'Ntilde'; Value: #209; ValueUtf8: #$C3#$91),
(Size: 6; Name: 'ntilde'; Value: #241; ValueUtf8: #$C3#$B1),
(Size: 6; Name: 'Oacute'; Value: #211; ValueUtf8: #$C3#$93),
(Size: 6; Name: 'oacute'; Value: #243; ValueUtf8: #$C3#$B3),
(Size: 6; Name: 'Ograve'; Value: #210; ValueUtf8: #$C3#$92),
(Size: 6; Name: 'ograve'; Value: #242; ValueUtf8: #$C3#$B2),
(Size: 6; Name: 'Oslash'; Value: #216; ValueUtf8: #$C3#$98),
(Size: 6; Name: 'oslash'; Value: #248; ValueUtf8: #$C3#$B8),
(Size: 6; Name: 'Otilde'; Value: #213; ValueUtf8: #$C3#$95),
(Size: 6; Name: 'otilde'; Value: #245; ValueUtf8: #$C3#$B5),
(Size: 6; Name: 'permil'; Value: #137; ValueUtf8: #$E2#$80#$B0),
(Size: 6; Name: 'plusmn'; Value: #177; ValueUtf8: #$C2#$B1),
(Size: 6; Name: 'rsaquo'; Value: #155; ValueUtf8: #$E2#$80#$BA),
(Size: 6; Name: 'Scaron'; Value: #138; ValueUtf8: #$C5#$A0),
(Size: 6; Name: 'scaron'; Value: #154; ValueUtf8: #$C5#$A1),
(Size: 6; Name: 'Uacute'; Value: #218; ValueUtf8: #$C3#$9A),
(Size: 6; Name: 'uacute'; Value: #250; ValueUtf8: #$C3#$BA),
(Size: 6; Name: 'Ugrave'; Value: #217; ValueUtf8: #$C3#$99),
(Size: 6; Name: 'ugrave'; Value: #249; ValueUtf8: #$C3#$B9),
(Size: 6; Name: 'Yacute'; Value: #221; ValueUtf8: #$C3#$9D),
(Size: 6; Name: 'yacute'; Value: #253; ValueUtf8: #$C3#$BD),
(Size: 6; Name: 'xxxxxx'; Value: NAnchorChar; ValueUtf8: NAnchorChar)
);
function ParseConstant(const S: string; OnUtf8: boolean = false): string;
var
Error: Integer;
Index1: Integer;
Index2: Integer;
Size1: Integer;
Found: Boolean;
begin {'Complete boolean eval' must be off}
Result := ' ';
Size1 := Length(S);
if Size1 = 0 then Exit;
if (S[1] in ['$', '0'..'9']) then
begin
Val(S, Index1, Error);
if (Error = 0) then
begin
if not OnUTF8 and (Index1 >= 32) and (Index1 <= 255) then
Result := Chr(Index1)
else
begin
Result := UnicodeToUTF8(Index1);
if Result = NbspUTF8 then Result := NbspChar;
end;
end;
end else
begin
Index1 := 0;
repeat
if Size1 = Codes[Index1].Size then
begin
Found := True;
Index2 := 1;
while Index2 <= Size1 do
begin
if S[Index2] <> Codes[Index1].Name[Index2] then
begin
Found := False;
Break;
end;
Inc(Index2);
end;
if Found then
begin
if OnUtf8 then
Result := Codes[Index1].ValueUTF8
else
Result := Codes[Index1].Value;
Break;
end;
end;
Inc(Index1);
until (Index1 >= CodeCount) or (Codes[Index1].Size > Size1);
end;
end;
{- returns the string with & escapes expanded}
procedure ExpandEscapes(var S: string);
var
i, j : Integer;
Co : string;
Ch : AnsiChar;
St : string;
begin
i := Length(S);
while i > 0 do begin
if S[i] = '&' then begin
j := i;
while (j < length(S)) and not (S[j] in [';', ' ']) do
Inc(j);
Co := copy(S, i + 1, j - i - 1);
if Co <> '' then begin
if Co[1] = '#' then begin
Delete(Co, 1, 1);
if UpCase(Co[1]) = 'X' then begin
Delete(Co, 1, 1);
Insert('$', Co, 1);
end;
end;
Delete(S, i, j - i + 1);
if SystemCharSetIsUTF8 then begin
St := ParseConstant(Co, true);
Insert(St, S, i)
end else begin
Ch := ParseConstant(Co)[1];
Insert(Ch, S, i);
end;
end;
end;
Dec(i);
end;
end;
function EscapeToAnsi(const S: string): string;
var
P : Integer;
begin
Result := S;
P := CharPos('&', S);
if P <> 0 then
ExpandEscapes(Result);
end;
{ Returns the string with & escapes}
function AnsiToEscape(const S: string): string;
var
i : Integer;
procedure replaceCharBy(newStr: string);
begin
Result[i] := '&';
Insert(newStr, Result, i + 1);
end;
begin
Result := S;
i := length(Result);
while i > 0 do begin
case Result[i] of
ShyChar : replaceCharBy('shy;');
NbspChar : replaceCharBy('nbsp;');
'"' : replaceCharBy('quot;');
'&' : replaceCharBy('amp;');
'<' : replaceCharBy('lt;');
'>' : replaceCharBy('gt;');
end;
Dec(i);
end;
end;
function NoBreakToSpace(const S: string): string;
var
P, n : Integer;
begin
SetLength(Result, Length(S));
n := 0;
P := 1;
while P <= Length(S) do
begin
inc(n);
if S[P] = NbspChar then
Result[n] := ' '
else if (P < Length(S)) and (S[P] = NbspUtf8[1]) and (S[P+1] = NbspUtf8[2]) then
begin
Result[n] := ' ';
inc(P);
end else
Result[n] := S[P];
inc(P);
end;
SetLength(Result, n);
end;
function FindFontName(const AFontList: string): string;
function CheckFonts(ATestFontList: array of String): String;
var
i: Integer;
begin
for i:=0 to High(ATestFontList) do begin
Result := ATestFontList[i];
if Screen.Fonts.IndexOf(Result) > -1 then
exit;
end;
Result := '';
end;
var
L: TStringList;
i: Integer;
begin
L := TStringList.Create;
try
L.CommaText := AFontList;
for i:=0 to L.Count-1 do begin
Result := L[i];
if Screen.Fonts.IndexOf(Result) > -1 then
exit;
if SameText(Result, 'sans-serif') then begin
Result := Checkfonts(['Arial', 'Helvetica', 'Liberation Sans']);
if Result = '' then
Result := Screen.MenuFont.Name;
exit;
end else
if SameText(Result, 'serif') then begin
Result := CheckFonts(['Times', 'Times New Roman', 'Liberation Serif']);
if Result = '' then
Result := Screen.MenuFont.Name;
exit;
end else
if SameText(Result, 'monospace') then begin
Result := CheckFonts(['Courier New', 'Courier', 'Liberation Mono']);
if Result = '' then
Result := Screen.MenuFont.Name;
exit;
end else
Result := Screen.MenuFont.Name;
end;
finally
L.Free;
end;
end;
function MaxI2(const I1, I2: Integer) : Integer;
begin
Result := I1;
if I2 > I1 then
Result := I2;
end;
function MinI2(const I1, I2: Integer) : Integer;
begin
Result := I1;
if I2 < I1 then
Result := I2;
end;
end.