This page lists and explains all supported types in Pascal Script used within ReNamer.
Integer types
| Type
|
Size
|
Lowest Value
|
Highest Value
|
| Byte
|
1 byte
|
0
|
255
|
| ShortInt
|
1 byte
|
-128
|
127
|
| Word
|
2 bytes
|
0
|
65,535
|
| SmallInt
|
2 bytes
|
-32,768
|
32,767
|
| Cardinal
|
4 bytes
|
0
|
4,294,967,295
|
| Integer
|
4 bytes
|
-2,147,483,648
|
2,147,483,647
|
| Int64
|
8 bytes
|
-9,223,372,036,854,775,808
|
9,223,372,036,854,775,807
|
Floating point types
| Type
|
Size
|
Range
|
| Single
|
4 bytes
|
1.5 x 10-45 .. 3.4 x 1038
|
| Double
|
8 bytes
|
5.0 x 10-324 .. 1.7 x 10308
|
| Extended
|
10 bytes
|
3.6 x 10-4951 .. 1.1 x 104932
|
String types
| Type
|
Description
|
| Char
|
Stores a single Ansi character
|
| String
|
Holds a sequence of Ansi characters of any length
|
| WideChar
|
Stores a single Unicode character
|
| WideString
|
Holds a sequence of Unicode characters of any length
|
Note: Unicode article highlights the difference between Unicode and Ansi.
Pointer types
| Type
|
Description
|
| PChar
|
Pointer to a Char value, and can also be used to point to characters within a string
|
Other types
| Type
|
Description
|
| Boolean
|
Provides an enumeration of the logical True and False values
|
| Array
|
Single and multi dimensional indexable sequences of data
|
| Record
|
Provides means of collecting together a set of different data types into one named structure
|
| Variant
|
Provides a flexible general purpose data type
|
Enumerations and Sets
For example, the Boolean data type is itself an enumeration, with two possible values: True and False. If you try to assign a different value to a Boolean variable, the code will not compile.
| Example
|
Description
|
type
TDay = (Mon, Tue, Wed, Thu, Fri, Sat, Sun);
var
Day: TDay;
begin
Day := Mon;
if Day <> Tue then
Day := Wed;
end.
|
An enumeration is simply a fixed range of named values
|
type
TDay = (Mon, Tue, Wed, Thu, Fri, Sat, Sun);
TDays = set of TDay;
var
Days: TDays;
begin
Days := [Mon, Tue, Wed];
if Sun in Days then
Days := Days - [Sun];
end.
|
Whereas enumerations allow a variable to have one, and only one, value from a fixed number of values, sets allow you to have any combination of the given values
|
Custom types
Several types are custom defined to simplify the usage of some functions.
| Type
|
Declared as
|
Description
|
| TDateTime
|
Double
|
Holds date and time
|
| TStringsArray
|
Array of WideString
|
Holds an indexable sequence of WideString
|
