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This article needs to be expanded!
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This page lists and explains all supported types in Pascal Script used within ReNamer.
Integer types
| Type
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Size
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Range
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| Byte
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1 byte
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0 .. 255
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| ShortInt
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1 byte
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-128 .. 127
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| Word
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2 bytes
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0 .. 65535
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| SmallInt
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2 bytes
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-32768 .. 32767
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| Cardinal
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4 bytes
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0 .. 4294967295
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| Integer
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4 bytes
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-2147483648 .. 2147483647
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Floating point types
| Type
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Size
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Range
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| Single
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4 bytes
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1.5 x 10-45 .. 3.4 x 1038
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| Double
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8 bytes
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5.0 x 10-324 .. 1.7 x 10308
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| Extended
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10 bytes
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3.6 x 10-4951 .. 1.1 x 104932
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String types
| Type
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Description
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| Char
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Stores a single Ansi character
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| String
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Holds a sequence of Ansi characters of any length
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| WideChar
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Stores a single Unicode character
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| WideString
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Holds a sequence of Unicode characters of any length
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Note: Unicode article highlights the difference between Unicode and Ansi.
Pointer types
| Type
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Description
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| PChar
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Pointer to a Char value, and can also be used to point to characters within a string
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Other types
| Type
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Description
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| Boolean
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Provides an enumeration of the logical True and False values
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| Array
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Single and multi dimensional indexable sequences of data
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| Record
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Provides means of collecting together a set of different data types into one named structure
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| Variant
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Provides a flexible general purpose data type
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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
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Description
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type
TDay = (Mon, Tue, Wed, Thu, Fri, Sat, Sun);
var
Day: TDay;
begin
Day := Mon;
if Day <> Tue then
Day := Wed;
end.
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An enumeration is simply a fixed range of named values
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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.
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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
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Custom types
Several types are custom defined to simplify the usage of some functions.
| Type
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Declared as
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Description
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| TDateTime
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Double
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Holds date and time
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| TStringsArray
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Array of WideString
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Holds an indexable sequence of WideString
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