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Format examples

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This commit is contained in:
michael 1999-05-30 20:42:20 +00:00
parent afc81918c6
commit e0dd9f3c91
6 changed files with 301 additions and 2 deletions
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5
docs/sysutex/Makefile
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@ -37,8 +37,9 @@ OBJECTS=ex1 ex2 ex3 ex4 ex5 ex6 ex7 ex8 ex9 ex10 ex11 ex12\
ex25 ex26 ex27 ex28 ex29 ex30 ex31 ex32 ex33 ex34 ex35 ex36\
ex37 ex38 ex39 ex40 ex41 ex42 ex43 ex44 ex45 ex46 ex47\
ex48 ex49 ex50 ex51 ex52 ex53 ex54 ex55 ex56 ex57 ex58\
ex59 ex60 ex61 ex62 ex63 ex64 ex65 ex66 ex67 ex68 ex68 ex70\
# ex1 ex2 ex3 ex4 ex5 ex6 ex7 ex8 ex9 ex10
ex59 ex60 ex61 ex62 ex63 ex64 ex65 ex66 ex67 ex68 ex69 ex70\
ex71
# ex2 ex3 ex4 ex5 ex6 ex7 ex8 ex9 ex10
TEXOBJECTS=$(addsuffix .tex, $(OBJECTS))

4
docs/sysutex/README
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@ -67,3 +67,7 @@ ex64.pp contains an example of the BCDToInt function.
ex65.pp contains an example of the CompareStr function.
ex66.pp contains an example of the CompareText function.
ex67.pp contains an example of the FloatToStr function.
ex68.pp contains an example of the FloatToStrF function.
ex69.pp contains an example of the FloatToText function.
ex70.pp contains an example of the FmtStr function.
ex71.pp contains an example of the Format function.

39
docs/sysutex/ex68.pp Normal file
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@ -0,0 +1,39 @@
Program Example68;
{ This program demonstrates the FloatToStrF function }
Uses sysutils;
Const Fmt : Array [TFloatFormat] of string[10] =
('general','exponent','fixed','number','Currency');
Procedure Testit (Value : Extended);
Var I,J : longint;
FF : TFloatFormat;
begin
For I:=5 to 15 do
For J:=1 to 4 do
For FF:=ffgeneral to ffcurrency do
begin
Write (Value,'(Prec: ',I:2,', Dig: ',J,', fmt : ',Fmt[ff],') : ');
Writeln (FloatToStrf(Value,FF,I,J));
Write (-Value,'(Prec: ',I:2,', Dig: ',J,', fmt : ',Fmt[ff],') : ');
Writeln (FloatToStrf(-Value,FF,I,J));
end;
end;
Begin
Testit (1.1);
Testit (1.1E1);
Testit (1.1E-1);
Testit (1.1E5);
Testit (1.1E-5);
Testit (1.1E10);
Testit (1.1E-10);
Testit (1.1E15);
Testit (1.1E-15);
Testit (1.1E100);
Testit (1.1E-100);
End.

42
docs/sysutex/ex69.pp Normal file
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@ -0,0 +1,42 @@
Program Example68;
{ This program demonstrates the FloatToStrF function }
Uses sysutils;
Const Fmt : Array [TFloatFormat] of string[10] =
('general','exponent','fixed','number','Currency');
Procedure Testit (Value : Extended);
Var I,J : longint;
FF : TFloatFormat;
S : ShortString;
begin
For I:=5 to 15 do
For J:=1 to 4 do
For FF:=ffgeneral to ffcurrency do
begin
Write (Value,'(Prec: ',I:2,', Dig: ',J,', fmt : ',Fmt[ff],') : ');
SetLength(S,FloatToText (@S[1],Value,FF,I,J));
Writeln (S);
Write (-Value,'(Prec: ',I:2,', Dig: ',J,', fmt : ',Fmt[ff],') : ');
SetLength(S,FloatToText (@S[1],-Value,FF,I,J));
Writeln (S);
end;
end;
Begin
Testit (1.1);
Testit (1.1E1);
Testit (1.1E-1);
Testit (1.1E5);
Testit (1.1E-5);
Testit (1.1E10);
Testit (1.1E-10);
Testit (1.1E15);
Testit (1.1E-15);
Testit (1.1E100);
Testit (1.1E-100);
End.

13
docs/sysutex/ex70.pp Normal file
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@ -0,0 +1,13 @@
Program Example70;
{ This program demonstrates the FmtStr function }
Uses sysutils;
Var S : AnsiString;
Begin
S:='';
FmtStr (S,'For some nice examples of fomatting see %s.',['Format']);
Writeln (S);
End.

200
docs/sysutex/ex71.pp Normal file
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@ -0,0 +1,200 @@
Program dof;
Uses sysutils;
Var P : Pointer;
fmt,S : string;
Procedure TestInteger;
begin
Try
Fmt:='[%d]';S:=Format (Fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%%]';S:=Format (Fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%10d]';S:=Format (Fmt,[10]);writeln(Fmt:12,' => ',s);
fmt:='[%.4d]';S:=Format (fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%10.4d]';S:=Format (Fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:d]';S:=Format (Fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:10d]';S:=Format (Fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:10.4d]';S:=Format (Fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:-10d]';S:=Format (Fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:-10.4d]';S:=Format (fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%-*.*d]';S:=Format (fmt,[4,5,10]);writeln(Fmt:12,' => ',s);
except
On E : Exception do
begin
Writeln ('Exception caught : ',E.Message);
end;
end;
writeln ('Press enter');
readln;
end;
Procedure TestHexaDecimal;
begin
try
Fmt:='[%x]';S:=Format (Fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%10x]';S:=Format (Fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%10.4x]';S:=Format (Fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:x]';S:=Format (Fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:10x]';S:=Format (Fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:10.4x]';S:=Format (Fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:-10x]';S:=Format (Fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:-10.4x]';S:=Format (fmt,[10]);writeln(Fmt:12,' => ',s);
Fmt:='[%-*.*x]';S:=Format (fmt,[4,5,10]);writeln(Fmt:12,' => ',s);
except
On E : Exception do
begin
Writeln ('Exception caught : ',E.Message);
end;
end;
writeln ('Press enter');
readln;
end;
Procedure TestPointer;
begin
P:=Pointer(1234567);
try
Fmt:='[0x%p]';S:=Format (Fmt,[P]);writeln(Fmt:12,' => ',s);
Fmt:='[0x%10p]';S:=Format (Fmt,[P]);writeln(Fmt:12,' => ',s);
Fmt:='[0x%10.4p]';S:=Format (Fmt,[P]);writeln(Fmt:12,' => ',s);
Fmt:='[0x%0:p]';S:=Format (Fmt,[P]);writeln(Fmt:12,' => ',s);
Fmt:='[0x%0:10p]';S:=Format (Fmt,[P]);writeln(Fmt:12,' => ',s);
Fmt:='[0x%0:10.4p]';S:=Format (Fmt,[P]);writeln(Fmt:12,' => ',s);
Fmt:='[0x%0:-10p]';S:=Format (Fmt,[P]);writeln(Fmt:12,' => ',s);
Fmt:='[0x%0:-10.4p]';S:=Format (fmt,[P]);writeln(Fmt:12,' => ',s);
Fmt:='[%-*.*p]';S:=Format (fmt,[4,5,P]);writeln(Fmt:12,' => ',s);
except
On E : Exception do
begin
Writeln ('Exception caught : ',E.Message);
end;
end;
writeln ('Press enter');
readln;
end;
Procedure TestString;
begin
try
Fmt:='[%s]';S:=Format(fmt,['This is a string']);Writeln(fmt:12,'=> ',s);
fmt:='[%0:s]';s:=Format(fmt,['This is a string']);Writeln(fmt:12,'=> ',s);
fmt:='[%0:18s]';s:=Format(fmt,['This is a string']);Writeln(fmt:12,'=> ',s);
fmt:='[%0:-18s]';s:=Format(fmt,['This is a string']);Writeln(fmt:12,'=> ',s);
fmt:='[%0:18.12s]';s:=Format(fmt,['This is a string']);Writeln(fmt:12,'=> ',s);
fmt:='[%-*.*s]';s:=Format(fmt,[18,12,'This is a string']);Writeln(fmt:12,'=> ',s);
except
On E : Exception do
begin
Writeln ('Exception caught : ',E.Message);
end;
end;
writeln ('Press enter');
readln;
end;
Procedure TestExponential;
begin
Try
Fmt:='[%e]';S:=Format (Fmt,[1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%10e]';S:=Format (Fmt,[1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%10.4e]';S:=Format (Fmt,[1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:e]';S:=Format (Fmt,[1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:10e]';S:=Format (Fmt,[1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:10.4e]';S:=Format (Fmt,[1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:-10e]';S:=Format (Fmt,[1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:-10.4e]';S:=Format (fmt,[1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%-*.*e]';S:=Format (fmt,[4,5,1.234]);writeln(Fmt:12,' => ',s);
except
On E : Exception do
begin
Writeln ('Exception caught : ',E.Message);
end;
end;
writeln ('Press enter');
readln;
end;
Procedure TestNegativeExponential;
begin
Try
Fmt:='[%e]';S:=Format (Fmt,[-1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%10e]';S:=Format (Fmt,[-1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%10.4e]';S:=Format (Fmt,[-1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:e]';S:=Format (Fmt,[-1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:10e]';S:=Format (Fmt,[-1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:10.4e]';S:=Format (Fmt,[-1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:-10e]';S:=Format (Fmt,[-1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:-10.4e]';S:=Format (fmt,[-1.234]);writeln(Fmt:12,' => ',s);
Fmt:='[%-*.*e]';S:=Format (fmt,[4,5,-1.234]);writeln(Fmt:12,' => ',s);
except
On E : Exception do
begin
Writeln ('Exception caught : ',E.Message);
end;
end;
writeln ('Press enter');
readln;
end;
Procedure TestSmallExponential;
begin
Try
Fmt:='[%e]';S:=Format (Fmt,[0.01234]);writeln(Fmt:12,' => ',s);
Fmt:='[%10e]';S:=Format (Fmt,[0.01234]);writeln(Fmt:12,' => ',s);
Fmt:='[%10.4e]';S:=Format (Fmt,[0.01234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:e]';S:=Format (Fmt,[0.01234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:10e]';S:=Format (Fmt,[0.01234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:10.4e]';S:=Format (Fmt,[0.01234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:-10e]';S:=Format (Fmt,[0.0123]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:-10.4e]';S:=Format (fmt,[0.01234]);writeln(Fmt:12,' => ',s);
Fmt:='[%-*.*e]';S:=Format (fmt,[4,5,0.01234]);writeln(Fmt:12,' => ',s);
except
On E : Exception do
begin
Writeln ('Exception caught : ',E.Message);
end;
end;
writeln ('Press enter');
readln;
end;
Procedure TestSmallNegExponential;
begin
Try
Fmt:='[%e]';S:=Format (Fmt,[-0.01234]);writeln(Fmt:12,' => ',s);
Fmt:='[%10e]';S:=Format (Fmt,[-0.01234]);writeln(Fmt:12,' => ',s);
Fmt:='[%10.4e]';S:=Format (Fmt,[-0.01234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:e]';S:=Format (Fmt,[-0.01234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:10e]';S:=Format (Fmt,[-0.01234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:10.4e]';S:=Format (Fmt,[-0.01234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:-10e]';S:=Format (Fmt,[-0.01234]);writeln(Fmt:12,' => ',s);
Fmt:='[%0:-10.4e]';S:=Format (fmt,[-0.01234]);writeln(Fmt:12,' => ',s);
Fmt:='[%-*.*e]';S:=Format (fmt,[4,5,-0.01234]);writeln(Fmt:12,' => ',s);
except
On E : Exception do
begin
Writeln ('Exception caught : ',E.Message);
end;
end;
writeln ('Press enter');
readln;
end;
begin
TestInteger;
TestHexadecimal;
TestPointer;
TestExponential;
TestNegativeExponential;
TestSmallExponential;
TestSmallNegExponential;
end.