The Pascal compiler company
The Pascal compiler company
Type identifiers are identifiers that have been associated with a type using a type definition. Type definitions must be placed in type definition groups.
Here is an example of a type definition group:
type
symbols = record
name : string;
value : integer;
end;
SymbolTable = list of symbols;
color = (red, green, blue);
cardinal = 0..maxint;
IntegerList = array[1..100] of integer;
characters = set of char;
GenericObject = object;The syntax for type definition groups is given below:
(NOTE: for clarity some parts of the syntax are omitted, see Irie Pascal Grammar for the full syntax):
type-definition-group = 'type' type-definition ';' { type-definition ';' }
domain-type = type-identifier
new-ordinal-type = enumerated-type | subrange-type
new-pointer-type = '^' domain-type | '@' domain-type
new-structured-type =
[ 'packed' ] array-type |
[ 'packed' ] record-type |
[ 'packed' ] set-type |
[ 'packed' ] file-type |
[ 'packed' ] list-type |
object-type |
string-type
new-type = new-ordinal-type | new-structured-type | new-pointer-type
type-definition = identifier '=' type-denoter
type-denoter = type-identifier | new-type
type-identifier = identifier