Delphi package ArtReport

Delphi component TArtLicense

TArtLicense - very simple nonvisual Delphi component useful for shareware program developing.

It uses encrypted license files containing information about exe file (size and crc), expired date and any additional information.

As TArtLicense uses RSA asymmetric algorithm and TArtLicense knows only decryption key, nobody can change information inside license file.

Archive also includes source code of ArtLicGenerator (program to generate license files compatible with TArtLicense).

History

• Version 1.2: Added support for Delpho 2010 (XE, XE2)
• Version 1.1: Now license file can contain nonencrypted additional data (ExData property)
• Version 1.0: First working version

✅ Download

---

ArtFormula package contains two nonvisual Delphi and Lazarus components for symbolic expression parsing and evaluation. Provides runtime scripting engine for automating your programs.

Provides:

• 7 arithmetic operations
• 10 logical operations
• 6 bitwise operations
• string concatenation (@) and like (==) operator
• 24 arithmetic functions
• 10 statistical functions
• 2 logical functions
• 17 string functions
• 13 date functions
• 14 programming functions
• User defined constant
• User defined variables
• User defined functions (modules)
• Subroutines, global vars and constants
• Symbolical differentiation of functions with basic simplification of resulting derivatives

Arithmetic operation:
x + y, x - y, x * y, x / y, x % y (Mod), x ^ y (power), x\ y (Div)

Logical operation (true=1, false=0):
x > y, x < y, x >= y, x <= y, x = y, x <> y, ! x (not), x & y (and), x | y (or), x xor y

Bitwise operations:
x && y (band), x || y (bor), !!x (bnot), x bxor y, x >> y (shr), x << y (shl)

Predefined constants:
Pi = 3.1415926535897932385
True = 1
False = 0

Functions:
sin, cos, tan, sinh, cosh, tanh, asin, acos, atan, asinh, acosh, atanh, sqrt, exp, log, lg (log base 10), int (integer part of a number), frac (fractional part of a number), abs, sign, rnd, randomize, trunc (truncates value to a specified number of digits), round (rounds value to a specified number of digits)
max(x,y...), min(x,y,...), count(x,y,...), sum(x,y,...), sumofsquares(x,y,...), avg(x,y,...), variance(x,y,...), variancep(x,y,...), stddev(x,y,...), stddevp(x,y,...)
iff(cond,x,y) (if cond = true then result = x else result = y),
isnumber(x)
chr(x), length(s), trim(s), trimleft(s), trimright(s) lowercase(s), uppercase(s), midstr(s,x,y), leftstr(s,x), rightstr(s,x), pos(s,t), code(s), format(s,x), formatf(s,x), stringofchar(c,n), concat(s1,s2,...), hex(s)
date(s), now, formatdate(s,d), year(d), month(d), day(d), hour(d), minute(d), second(d), millisecond(d), isleapyear(n), dayofweek(d), encodedate(y,m,d)

TArtFormula provides two styles of programming: formula style and scripting style. The first style assumes that all statements have the form of function call. The second style imply that you use common program language notation.

For example:

    block(defines('i','n'), set('n',1), 
          series(set('i',1), val('i')<=5, inc('i'), set('n',val('n')*val('i'))), 
          msg('5! = '+val('n'),'result',0)) 

Is equal to:

   begin 
     var 'i', 'n' end;
     $n:=1;
     for $i:=1;  $i<=5;  $i++ do
       $n := $n*$i;
     endfor;
     msg('5! = '+val('n'),'result',0);
   end

You can mix two styles in one program.

TArtFormula programming language supports:

• Variables definitions
• Assignment statement
• Increment and Decrement operations
• Return function
• Compound statement (BEGIN... END)
• IF statement
• WHILE loop
• UNTIL loop
• FOR loop
• Interface functions: msg('text','caption',props), input('caption', 'text', defvalue)
• Subroutines, global vars and global constants (with extended syntax)
• Recursion and forward subroutines declaration

Spreadsheet application:

TArtFormula can be used in spreadsheet application. E.g. using GetVarsCount and GetVarValue event handlers one can implement calculation of sum(a1:b4), avg(c1:c99) and similar function calls, where a1:b4 and c1:c99 are range of sheet cells.

✅ Download

✅ Full description

---