AsProgrammer
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说明: ini file untuk un chip flash
文件列表:
AsProgrammer\AsProgrammer.exe (3850752, 2017-10-23)
AsProgrammer\CH341DLL.DLL (31012, 2008-10-15)
AsProgrammer\chiplist.xml (48596, 2017-09-21)
AsProgrammer\kb9012pins.txt (128, 2017-03-05)
AsProgrammer\lang\en.po (11362, 2017-09-11)
AsProgrammer\lang\ru.po (4443, 2017-09-11)
AsProgrammer\libusb0.dll (67680, 2012-01-17)
AsProgrammer\scripts\blockerase.pas (656, 2017-10-04)
AsProgrammer\scripts\script_func.html (9681, 2017-09-20)
AsProgrammer\settings.xml (161, 2018-11-14)
AsProgrammer\lang (0, 2016-04-12)
AsProgrammer\scripts (0, 2017-09-20)
AsProgrammer (0, 2018-11-14)
1. Description
-------------------
The module PASCALC.DCU is the Pascal-like language interpreter for Delphi.
The basic differences from standard Pascal the following:
- All variables stored as variants.
- It's no need to declare variables, labels and functions. PASCALC creates
variables dynamically on first assignment. Variable type depends on the
last value assigned, type checking is not carried out.
- Expressions syntax:
Arithmetic operators: +, -, *, /, ^ (power), SHL, SHL
Bitwise operators: BITOR,BITAND,BITXOR,BITNOT
Logical operators: >, <, >=, <=, =, <>, AND, OR, NOT,
constants TRUE and FALSE.
Operators precedence standard, you can use parentheses.
- Statements supported:
BEGIN... END
IF... THEN... ELSE
CASE
FOR... TO/DOWNTO... DO
WHILE... DO
REPEAT... UNTIL
BREAK
CONTINUE
GOTO
EXIT
USES
INCLUDE
- All reserved words are declared in interface section as string array.
You can change them to anyone others. All identifiers should be different
(except assignment and equation, they may be the same).
- Multi-dimensional arrays supported. Array items are variables whose names
consist from array name and indexes (in brackets). Array items properties
same as the simple variables. It's no need to declare arrays. Array index
continuity is not requred. It's possible to access string as char array.
You can assign chars or numbers in range 0..255 to string characters.
Array name should be unique, simple variable MyArr and array item MyArr[1]
can't exist at the same time. This rule allows to distinguish access to
1-st character of string variable MyArr (MyArr[1]) from the accees to
the first item of array MyArr. To access character of string array item,
character index should be written in brackets after item name, for example
MyArr[1,2][3].
- All build-in functions are user-defined. Module pasfunc.pas contain
example of PASCALC implementations for common Delphi functions. You can use
this functions and write your own implementations for necessary functions.
There is no need to declare parameters for user-defined functions, therefore
it's types and amount are not limited. If necessary you can provide type
checking inside function code. Interpreter calculates all parameter values
and creates temporary values list (TVarList). Names of var-parameters in this
list are 'VAR', otherwise 'VALUE'. After function call interpreter updates
values for var-parameters. Function result type not checked, one function can
return number as well as string. Functions can be called as procedures (without
result usage).
- Procedures and functions (in sense of the subroutines on interpreter language)
are supported. The function heading specifies only names of formal parameters,
without parameters types and pass method (var or value). Also, function's result
types are not declared. To return function result you should assign value to
variable "result".
If actual parameter is variable (not expression), it considered as var-parameter.
In this case assigning new value to this parameter inside procedure or function
will affect the actual parameter variable.
At the same time, all interpreter global variables inside a function or procedures
looks like local variables, with the same initial values as global ones.
You can change this values inside procedures (functions), but it's don't affect
the global variables. All new variables created inside procedures and functions
are local, and will be destroyed after exiting.
Therefore, it is possible to use any names for local variables, without conflicts
with the global variables.
For libraries implementation, it is possible to use operators USES and INCLUDE.
Syntax: USES 'filename';
INCLUDE 'filename';
INCLIDE and USES are parsed by pre-processor before script execution.
INCLUDE inserts text from file 'filename' into the script, USES loads
procedures and functions declarations.
2. License
----------
This software is provided as it is, without any kind of warranty given.
The author can not be held responsible for any kind of damage, problems etc,
arised from using this software. PASCALC interpreter is shareware product.
Unregistered version has no time or functionality limitations, but can
show info screen.
If you want get source code, you should register PASCALC and get registration code.
Use your registration code as password for source archive (Source\pascsrc.zip).
Address for online registration (price $20):
https://www.regnow.com/softsell/nph-softsell.cgi?item=2608-2
You can modify PASCALC source code as you need, distribute executable files
compiled with PASCALC source. But you can't distribute original or modified
PASCALC source code, .DCU units or libraries based on PASCALC source code.
3. PASCALC inteface
-------------------
unit pascalc;
{$F+,B-,R-}
interface
uses
Windows, Messages, SysUtils, Classes, Math;
type TToken =
(tEMPTY, tVR, tCON, tTRUE, tFALSE,
tEQU, tOR, tAND, tNOT, tXOR,
tCOMMA, tLBL, tNEQ, tGT, tLS,
tGTE, tLSE, tADD, tSUB, tMUL,
tDIV, tPWR, tLBR, tRBR, tLARR,
tRARR, tSEMI, tREM, tREMB, tREME,
tASSIGN, tBEGIN, tEND, tIF, tTHEN,
tELSE, tFOR, tTO, tDOWNTO, tDO,
tWHILE, tREPEAT, tUNTIL, tBREAK, tCONTINUE,
tEXIT, tGOTO, tSHL, tSHR, tPROC,
tFUNCT, tUSES, tINCLUDE, tCASE, tOF,
tCOMMA2);
type TTokenSet = set of TToken;
const
ResWords : array[TToken] of string[10] =
('', '', '', 'TRUE', 'FALSE',
'=', 'OR', 'AND', 'NOT', 'XOR',
',', ':', '<>', '>', '<',
'>=', '<=', '+', '-', '*',
'/', '^', '(', ')', '[',
']', ';', '//', '{', '}',
':=', 'BEGIN', 'END', 'IF', 'THEN',
'ELSE', 'FOR', 'TO', 'DOWNTO', 'DO',
'WHILE', 'REPEAT', 'UNTIL', 'BREAK', 'CONTINUE',
'EXIT', 'GOTO', 'SHL', 'SHR', 'PROCEDURE',
'FUNCTION', 'USES', 'INCLUDE', 'CASE', 'OF',
'..');
const
Alpha : set of char = ['_','0'..'9','a'..'z','A'..'Z','à'..'','',''..'','¨'];
StrDelimiter : char = '''';
DecimalPoint : char = '.';
TokenDelimiter : char = #127;
type TVar = record
Name : string;
Value : variant;
end;
type TPVar = ^TVar;
type TVarList = class (TList)
destructor Destroy; override;
procedure ClearAll;
function AddVar(V:TVar) : boolean;
function AddValue(N:string; V:variant) : boolean;
function VarExist(N:string):boolean;
function VarIndex(N:string):integer;
function VarByName(N:string;var V:TVar) : boolean;
function SetVar(V:TVar) : boolean;
function SetValue(N:string; V:variant) : boolean;
procedure CopyTo(VL:TVarList);
end;
type TPVarList = ^TVarList;
type PProcessProc = procedure;
type PFunction = function(Sender:TObject; var A:TVarList; var R:TVar) : boolean;
type TFunc = record
Name : string;
Func : Pointer;
end;
type TPFunc = ^TFunc;
type TFuncList = class (TList)
destructor Destroy; override;
procedure ClearAll;
function AddFunction(N:string; F:Pointer) : boolean;
end;
type TProcedure = record
Name : string;
Body : string;
Params : string;
Result : boolean;
end;
type TPProcedure = ^TProcedure;
type TProcList = class(TList)
destructor Destroy; override;
procedure ClearAll;
function AddProc(Proc:TProcedure):boolean;
function ProcIndex(Name:string):integer;
function ProcByName(Name:string; var Proc:TProcedure):boolean;
end;
type TPasCalc = class
constructor Create;
destructor Destroy; override;
procedure ClearVars;
function VarCount : integer;
function VarIndex(N:string) : integer;
function VarByName(N:string; var V:TVar) : boolean;
function VarByIndex(I:integer; var V:TVar) : boolean;
function SetVar(V:TVar) : boolean;
function SetValue(N:string; V:variant):boolean;
procedure ClearFuncs;
function SetFunction(N:string; F:Pointer) : boolean;
procedure SetProcessProc(P:Pointer);
function Parse(S:string) : string;
function Calculate(S:string; var R:TVar) : boolean;
function Execute(S:string):boolean;
private
Expr : string;
ExprIndex : integer;
Token : string;
TokenCode : TToken;
BlockLevel : integer;
BlockCmd : TToken;
GotoLabel : string;
VarList : TVarList;
FuncList : TFuncList;
ProcList : TProcList;
ProcessProc : PProcessProc;
LastString : string;
LastParsed : string;
procedure Clear;
procedure Process;
procedure Error(Msg,Line:string; Code:integer);
procedure Level1(var R:TVar);
procedure Level2(var R:TVar);
procedure Level3(var R:TVar);
procedure Level4(var R:TVar);
procedure Level5(var R:TVar);
procedure Level6(var R:TVar);
procedure Level7(var R:TVar);
procedure Level8(var R:TVar);
procedure Arith(o : TToken; var R,H:TVar);
procedure Unary(o : TToken; var R:TVar);
function GetIndex(S:string; var Index:integer; var T:TToken) : string;
function GetFuncParams(S:string; var Index:integer) : string;
function FindFunc(N:string) : integer;
function FindArray(N:string) : boolean;
procedure SetVarDirect(var R:TVar);
function CallFunc(N:string; A:string; var V:TVar) : boolean;
function CallProc(N:string; A:string; var V:TVar) : boolean;
function GetTextToken(S: string; var Index : integer; var Code : TToken) : string;
function TokenStr(T:TToken;S:string) : string;
function GetToken(S:string; var Index : integer; var Code : TToken) : string;
function GetTokenCode(S: string; var Index:integer; var Code:TToken) : integer;
function GetTokenLine(S:string; var Index:integer; var Code:TToken;
StopToken:TTokenSet) : string;
function NextToken(S:string; Index:integer) : TToken;
function GetOperator(Txt:string; var Index : integer; EndToken:TTokenSet) : string;
function ParseOperator(Txt:string; var Cmd,Line,Lbl : string) : TToken;
function DelRemarks(S:string) : string;
function UnParse(S:string; Show:boolean) : string;
function PreProcess(Txt:string):string;
function Calc(S:string; var R:TVar) : boolean;
procedure Exec(Txt:string);
procedure DoSet(CmdLine,Cmd,Line:string);
procedure DoIf(CmdLine,Line:string);
procedure DoBegin(CmdLine,Line:string);
procedure DoFor(CmdLine,Line:string);
procedure DoBreak(CmdLine,Line:string);
procedure DoContinue(CmdLine,Line:string);
procedure DoExit(CmdLine,Line:string);
procedure DoWhile(CmdLine,Line:string);
procedure DoRepeat(CmdLine,Line:string);
procedure DoGoto(CmdLine,Line:string);
procedure DoCase(CmdLine,Line:string);
public
Stop : boolean;
ErrCode : integer;
ErrMsg : string;
ErrLine : string;
end;
4. Functions (unit PASFUNC.PAS)
------------------------------
// String functions
Val
IntToStr
StrToInt
FloatToStr
StrToFloat
Copy
Pos
Length
Insert
Delete
Trim
TrimLeft
TrimRight
UpperCase
LowerCase
Format
// DateTime functions
Now
Date
Time
DateToStr
StrToDate
TimeToStr
StrToTime
FormatDateTime
DayOfWeek
IncMonth
DecodeDate
DecodeTime
EncodeDate
EncodeTime
YearDays
YearFrac
// Math functions
Abs
Int
Frac
Round
Ceil
Floor
Trunc
Sin
Cos
Tan
ArcSin
ArcCos
ArcTan
Exp
Ln
IntPower
Sqr
Sqrt
Min
Max
Inc
Dec
// Variable handling functions.
// Allows get or set variable value by calculated variable name.
SetVar
GetVar
// Misc functions
Decode (simular with the Oracle Decode function)
5. Interpreter usage
--------------------
See usage example in demo program (demo.dpr). At first you should write
user-defined functions you want to use in scripts and expressions. Function
should set result value (field Value of variable R:TVar) and return true.
On errors (wrong parameters, etc) function should return false. In your
program you should create an instance of TPasCalc class.
Then associate functions with names (TPasCalc.SetFunction).
To register pasfunc.pas function library, call SetFunctions.
You can set predefined variables (TPasCalc.SetVarNum or TPasCalc.SetVarStr).
Method TPasCalc.Calculate evaluates expression and returns result in variable
R:TVar. Method TPasCalc.Execute executes script and fills variable list.
You can access variables using TPasCalc.VarCount, TPasCalc.VarByIndex or
TPasCalc.VarByName methods. TPasCalc.ErrCode, TPasCalc.ErrMsg and
TPasCalc.ErrLine indicates last error code, error message and line that
raises error. Variable list not cleared in Calculate and Execute methods.
You can reset all variables using TPasCalc.ClearVars. TPasCalc.ClearFuncs
resets function list. Method TPasCalc.SetProcessProc sets pointer to
user-defined callback procedure. Interpreter calls this procedure in internal
cycles. In this procedure you can check some condition (timeout for example)
and break execution by assigning TPasCalc.Stop:=TRUE. It is useful to call
Application.ProcessMessages in this procedure. If callback procedure not
assigned, interpreter uses Process method instead. Process method performs
only messages processing.
To improve perfomance you can prepare script using Parse method, and then
execute previously prepared script.
6. Error codes
--------------
0 - O.K.
1 - Error in expression
2 - Unpaired parentheses
3 - Variable not found
4 - Invalid variable/function/procedure name
5 - Invalid typecast
6 - Invalidstring constant
7 - Incorrect function call
8 - Function not found
9 - Invalid operator
10 - END expected
11 - Too many END
12 - TO or DOWNTO expected
13 - FOR-loop variable expected
14 - DO expected
15 - BREAK outside a loop
16 - UNTIL expected
17 - Too many UNTIL
18 - Label not found
19 - Index out of range
20 - Value out of range
21 - ']' expected
22 - Too many '['
23 - Division by zero
24 - Variable or array name duplicated
25 - File pen error
26 - Function must return result
27 - CASE without OF
28 - Too many ELSE in CASE statement
29 - Case range expected
7. Author
---------
Alex Boiko
alexboiko@mtu-net.ru
http://alexboiko.da.ru
http://alexboiko.chat.ru
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