Browsable Ada 2005 Grammar

CC-BY

Grammar extracted by Vadim Zaytsev, see the Grammar Zoo entry for details: ada/ada2005/lncs-4348/extracted
Source used for this grammar: International Standard ISO/IEC 8652/1995(E) with Technical Corrigendum 1 and Amendment 1, Ada 2005 Reference Manual. Language and Standard Libraries, Also published as LNCS 4348 with Taft, S.T.; Duff, R.A.; Brukardt, R.L.; Ploedereder, E.; Leroy, P. as editors, 2006, Annex P, pages 675–692 [DOI]

Summary

Syntax

identifier ::=
	identifier_start (identifier_start | identifier_extend)*
identifier_start ::=
	letter_uppercase
	letter_lowercase
	letter_titlecase
	letter_modifier
	letter_other
	number_letter
identifier_extend ::=
	mark_non_spacing
	mark_spacing_combining
	number_decimal
	punctuation_connector
	other_format
numeric_literal ::=
	decimal_literal
	based_literal
decimal_literal ::=
	numeral ("." numeral)? exponent?
numeral ::=
	digit (underline? digit)*
exponent ::=
	"E" "+"? numeral
	"E" "-" numeral
digit ::=
	"0"
	"1"
	"2"
	"3"
	"4"
	"5"
	"6"
	"7"
	"8"
	"9"
based_literal ::=
	base "#" based_numeral ("." based_numeral)? "#" exponent?
base ::=
	numeral
based_numeral ::=
	extended_digit (underline? extended_digit)*
extended_digit ::=
	digit
	"A"
	"B"
	"C"
	"D"
	"E"
	"F"
character_literal ::=
	"'" graphic_character "'"
string_literal ::=
	""" string_element* """
string_element ::=
	""""
	non_quotation_mark_graphic_character
comment ::=
	"-" "-" non_end_of_line_character*
pragma ::=
	"pragma" identifier ("(" pragma_argument_association ("," pragma_argument_association)* ")")? ";"
pragma_argument_association ::=
	(pragma_argument_identifier "=>")? name
	(pragma_argument_identifier "=>")? expression
basic_declaration ::=
	type_declaration
	object_declaration
	subprogram_declaration
	null_procedure_declaration
	renaming_declaration
	generic_declaration
	subtype_declaration
	number_declaration
	abstract_subprogram_declaration
	package_declaration
	exception_declaration
	generic_instantiation
defining_identifier ::=
	identifier
type_declaration ::=
	full_type_declaration
	incomplete_type_declaration
	private_type_declaration
	private_extension_declaration
full_type_declaration ::=
	"type" defining_identifier known_discriminant_part? "is" type_definition ";"
	task_type_declaration
	protected_type_declaration
type_definition ::=
	enumeration_type_definition
	real_type_definition
	record_type_definition
	derived_type_definition
	integer_type_definition
	array_type_definition
	access_type_definition
	interface_type_definition
subtype_declaration ::=
	"subtype" defining_identifier "is" subtype_indication ";"
subtype_indication ::=
	null_exclusion? subtype_mark constraint?
subtype_mark ::=
	subtype_name
constraint ::=
	scalar_constraint
	composite_constraint
scalar_constraint ::=
	range_constraint
	digits_constraint
	delta_constraint
composite_constraint ::=
	index_constraint
	discriminant_constraint
object_declaration ::=
	defining_identifier_list ":" "aliased"? "constant"? subtype_indication (":=" expression)? ";"
	defining_identifier_list ":" "aliased"? "constant"? access_definition (":=" expression)? ";"
	defining_identifier_list ":" "aliased"? "constant"? array_type_definition (":=" expression)? ";"
	single_task_declaration
	single_protected_declaration
defining_identifier_list ::=
	defining_identifier ("," defining_identifier)*
number_declaration ::=
	defining_identifier_list ":" "constant" ":=" static_expression ";"
derived_type_definition ::=
	"abstract"? "limited"? "new" parent_subtype_indication (("and" interface_list)? record_extension_part)?
range_constraint ::=
	"range" range
range ::=
	range_attribute_reference
	simple_expression ".." simple_expression
enumeration_type_definition ::=
	"(" enumeration_literal_specification ("," enumeration_literal_specification)* ")"
enumeration_literal_specification ::=
	defining_identifier
	defining_character_literal
defining_character_literal ::=
	character_literal
integer_type_definition ::=
	signed_integer_type_definition
	modular_type_definition
signed_integer_type_definition ::=
	"range" static_simple_expression ".." static_simple_expression
modular_type_definition ::=
	"mod" static_expression
real_type_definition ::=
	floating_point_definition
	fixed_point_definition
floating_point_definition ::=
	"digits" static_expression real_range_specification?
real_range_specification ::=
	"range" static_simple_expression ".." static_simple_expression
fixed_point_definition ::=
	ordinary_fixed_point_definition
	decimal_fixed_point_definition
ordinary_fixed_point_definition ::=
	"delta" static_expression real_range_specification
decimal_fixed_point_definition ::=
	"delta" static_expression "digits" static_expression real_range_specification?
digits_constraint ::=
	"digits" static_expression range_constraint?
array_type_definition ::=
	unconstrained_array_definition
	constrained_array_definition
unconstrained_array_definition ::=
	"array" "(" index_subtype_definition ("," index_subtype_definition)* ")" "of" component_definition
index_subtype_definition ::=
	subtype_mark "range" "<>"
constrained_array_definition ::=
	"array" "(" discrete_subtype_definition ("," discrete_subtype_definition)* ")" "of" component_definition
discrete_subtype_definition ::=
	discrete_subtype_indication
	range
component_definition ::=
	"aliased"? subtype_indication
	"aliased"? access_definition
index_constraint ::=
	"(" discrete_range ("," discrete_range)* ")"
discrete_range ::=
	discrete_subtype_indication
	range
discriminant_part ::=
	unknown_discriminant_part
	known_discriminant_part
unknown_discriminant_part ::=
	"(<>)"
known_discriminant_part ::=
	"(" discriminant_specification (";" discriminant_specification)* ")"
discriminant_specification ::=
	defining_identifier_list ":" null_exclusion? subtype_mark (":=" default_expression)?
	defining_identifier_list ":" access_definition (":=" default_expression)?
default_expression ::=
	expression
discriminant_constraint ::=
	"(" discriminant_association ("," discriminant_association)* ")"
discriminant_association ::=
	(discriminant_selector_name ("|" discriminant_selector_name)* "=>")? expression
record_type_definition ::=
	("abstract"? "tagged")? "limited"? record_definition
record_definition ::=
	"record" component_list "end" "record"
	"null" "record"
component_list ::=
	component_item component_item*
	component_item* variant_part
	"null" ";"
component_item ::=
	component_declaration
	aspect_clause
component_declaration ::=
	defining_identifier_list ":" component_definition (":=" default_expression)? ";"
variant_part ::=
	"case" discriminant_direct_name "is" variant+ "end" "case" ";"
variant ::=
	"when" discrete_choice_list "=>" component_list
discrete_choice_list ::=
	discrete_choice ("|" discrete_choice)*
discrete_choice ::=
	expression
	discrete_range
	"others"
record_extension_part ::=
	"with" record_definition
abstract_subprogram_declaration ::=
	overriding_indicator? subprogram_specification "is" "abstract" ";"
interface_type_definition ::=
	("limited" | "task" | "protected" | "synchronized")? "interface" ("and" interface_list)?
interface_list ::=
	interface_subtype_mark ("and" interface_subtype_mark)*
access_type_definition ::=
	null_exclusion? access_to_object_definition
	null_exclusion? access_to_subprogram_definition
access_to_object_definition ::=
	"access" general_access_modifier? subtype_indication
general_access_modifier ::=
	"all"
	"constant"
access_to_subprogram_definition ::=
	"access" "protected"? "procedure" parameter_profile
	"access" "protected"? "function" parameter_and_result_profile
null_exclusion ::=
	"not" "null"
access_definition ::=
	null_exclusion? "access" "constant"? subtype_mark
	null_exclusion? "access" "protected"? "procedure" parameter_profile
	null_exclusion? "access" "protected"? "function" parameter_and_result_profile
incomplete_type_declaration ::=
	"type" defining_identifier discriminant_part? ("is" "tagged")? ";"
declarative_part ::=
	declarative_item*
declarative_item ::=
	basic_declarative_item
	body
basic_declarative_item ::=
	basic_declaration
	aspect_clause
	use_clause
body ::=
	proper_body
	body_stub
proper_body ::=
	subprogram_body
	package_body
	task_body
	protected_body
name ::=
	direct_name
	indexed_component
	selected_component
	type_conversion
	character_literal
	explicit_dereference
	slice
	attribute_reference
	function_call
direct_name ::=
	identifier
	operator_symbol
prefix ::=
	name
	implicit_dereference
explicit_dereference ::=
	name "." "all"
implicit_dereference ::=
	name
indexed_component ::=
	prefix "(" expression ("," expression)* ")"
slice ::=
	prefix "(" discrete_range ")"
selected_component ::=
	prefix "." selector_name
selector_name ::=
	identifier
	character_literal
	operator_symbol
attribute_reference ::=
	prefix "'" attribute_designator
attribute_designator ::=
	identifier ("(" static_expression ")")?
	"Access"
	"Delta"
	"Digits"
range_attribute_reference ::=
	prefix "'" range_attribute_designator
range_attribute_designator ::=
	"Range" ("(" static_expression ")")?
aggregate ::=
	record_aggregate
	extension_aggregate
	array_aggregate
record_aggregate ::=
	"(" record_component_association_list ")"
record_component_association_list ::=
	record_component_association ("," record_component_association)*
	"null" "record"
record_component_association ::=
	(component_choice_list "=>")? expression
	component_choice_list "=><>"
component_choice_list ::=
	component_selector_name ("|" component_selector_name)*
	"others"
extension_aggregate ::=
	"(" ancestor_part "with" record_component_association_list ")"
ancestor_part ::=
	expression
	subtype_mark
array_aggregate ::=
	positional_array_aggregate
	named_array_aggregate
positional_array_aggregate ::=
	"(" expression "," expression ("," expression)* ")"
	"(" expression ("," expression)* "," "others" "=>" expression ")"
	"(" expression ("," expression)* "," "others" "=><>)"
named_array_aggregate ::=
	"(" array_component_association ("," array_component_association)* ")"
array_component_association ::=
	discrete_choice_list "=>" expression
	discrete_choice_list "=><>"
expression ::=
	relation ("and" relation)*
	relation ("or" relation)*
	relation ("xor" relation)*
	relation ("and" "then" relation)*
	relation ("or" "else" relation)*
relation ::=
	simple_expression (relational_operator simple_expression)?
	simple_expression "not"? "in" range
	simple_expression "not"? "in" subtype_mark
simple_expression ::=
	unary_adding_operator? term (binary_adding_operator term)*
term ::=
	factor (multiplying_operator factor)*
factor ::=
	primary ("**" primary)?
	"abs" primary
	"not" primary
primary ::=
	numeric_literal
	"null"
	string_literal
	aggregate
	name
	qualified_expression
	allocator
	"(" expression ")"
logical_operator ::=
	"and"
	"or"
	"xor"
relational_operator ::=
	"="
	"/="
	"<"
	"<="
	">"
	">="
binary_adding_operator ::=
	"+"
	"-"
	"&"
unary_adding_operator ::=
	"+"
	"-"
multiplying_operator ::=
	"*"
	"/"
	"mod"
	"rem"
highest_precedence_operator ::=
	"**"
	"abs"
	"not"
type_conversion ::=
	subtype_mark "(" expression ")"
	subtype_mark "(" name ")"
qualified_expression ::=
	subtype_mark "'(" expression ")"
	subtype_mark "'" aggregate
allocator ::=
	"new" subtype_indication
	"new" qualified_expression
sequence_of_statements ::=
	statement statement*
statement ::=
	label* simple_statement
	label* compound_statement
simple_statement ::=
	null_statement
	assignment_statement
	goto_statement
	simple_return_statement
	requeue_statement
	abort_statement
	code_statement
	exit_statement
	procedure_call_statement
	entry_call_statement
	delay_statement
	raise_statement
compound_statement ::=
	if_statement
	loop_statement
	extended_return_statement
	accept_statement
	case_statement
	block_statement
	select_statement
null_statement ::=
	"null" ";"
label ::=
	"<<" label_statement_identifier ">>"
statement_identifier ::=
	direct_name
assignment_statement ::=
	variable_name ":=" expression ";"
if_statement ::=
	"if" condition "then" sequence_of_statements ("elsif" condition "then" sequence_of_statements)* ("else" sequence_of_statements)? "end" "if" ";"
condition ::=
	boolean_expression
case_statement ::=
	"case" expression "is" case_statement_alternative case_statement_alternative* "end" "case" ";"
case_statement_alternative ::=
	"when" discrete_choice_list "=>" sequence_of_statements
loop_statement ::=
	(loop_statement_identifier ":")? iteration_scheme? "loop" sequence_of_statements "end" "loop" loop_identifier? ";"
iteration_scheme ::=
	"while" condition
	"for" loop_parameter_specification
loop_parameter_specification ::=
	defining_identifier "in" "reverse"? discrete_subtype_definition
block_statement ::=
	(block_statement_identifier ":")? ("declare" declarative_part)? "begin" handled_sequence_of_statements "end" block_identifier? ";"
exit_statement ::=
	"exit" loop_name? ("when" condition)? ";"
goto_statement ::=
	"goto" label_name ";"
subprogram_declaration ::=
	overriding_indicator? subprogram_specification ";"
subprogram_specification ::=
	procedure_specification
	function_specification
procedure_specification ::=
	"procedure" defining_program_unit_name parameter_profile
function_specification ::=
	"function" defining_designator parameter_and_result_profile
designator ::=
	(parent_unit_name ".")? identifier
	operator_symbol
defining_designator ::=
	defining_program_unit_name
	defining_operator_symbol
defining_program_unit_name ::=
	(parent_unit_name ".")? defining_identifier
operator_symbol ::=
	string_literal
defining_operator_symbol ::=
	operator_symbol
parameter_profile ::=
	formal_part?
parameter_and_result_profile ::=
	formal_part? "return" null_exclusion? subtype_mark
	formal_part? "return" access_definition
formal_part ::=
	"(" parameter_specification (";" parameter_specification)* ")"
parameter_specification ::=
	defining_identifier_list ":" mode null_exclusion? subtype_mark (":=" default_expression)?
	defining_identifier_list ":" access_definition (":=" default_expression)?
mode ::=
	"in"?
	"in" "out"
	"out"
subprogram_body ::=
	overriding_indicator? subprogram_specification "is" declarative_part "begin" handled_sequence_of_statements "end" designator? ";"
procedure_call_statement ::=
	procedure_name ";"
	procedure_prefix actual_parameter_part ";"
function_call ::=
	function_name
	function_prefix actual_parameter_part
actual_parameter_part ::=
	"(" parameter_association ("," parameter_association)* ")"
parameter_association ::=
	(formal_parameter_selector_name "=>")? explicit_actual_parameter
explicit_actual_parameter ::=
	expression
	variable_name
simple_return_statement ::=
	"return" expression? ";"
extended_return_statement ::=
	"return" defining_identifier ":" "aliased"? return_subtype_indication (":=" expression)? ("do" handled_sequence_of_statements "end" "return")? ";"
return_subtype_indication ::=
	subtype_indication
	access_definition
null_procedure_declaration ::=
	overriding_indicator? procedure_specification "is" "null" ";"
package_declaration ::=
	package_specification ";"
package_specification ::=
	"package" defining_program_unit_name "is" basic_declarative_item* ("private" basic_declarative_item*)? "end" ((parent_unit_name ".")? identifier)?
package_body ::=
	"package" "body" defining_program_unit_name "is" declarative_part ("begin" handled_sequence_of_statements)? "end" ((parent_unit_name ".")? identifier)? ";"
private_type_declaration ::=
	"type" defining_identifier discriminant_part? "is" ("abstract"? "tagged")? "limited"? "private" ";"
private_extension_declaration ::=
	"type" defining_identifier discriminant_part? "is" "abstract"? ("limited" | "synchronized")? "new" ancestor_subtype_indication ("and" interface_list)? "with" "private" ";"
overriding_indicator ::=
	"not"? "overriding"
use_clause ::=
	use_package_clause
	use_type_clause
use_package_clause ::=
	"use" package_name ("," package_name)* ";"
use_type_clause ::=
	"use" "type" subtype_mark ("," subtype_mark)* ";"
renaming_declaration ::=
	object_renaming_declaration
	exception_renaming_declaration
	package_renaming_declaration
	subprogram_renaming_declaration
	generic_renaming_declaration
object_renaming_declaration ::=
	defining_identifier ":" null_exclusion? subtype_mark "renames" object_name ";"
	defining_identifier ":" access_definition "renames" object_name ";"
exception_renaming_declaration ::=
	defining_identifier ":" "exception" "renames" exception_name ";"
package_renaming_declaration ::=
	"package" defining_program_unit_name "renames" package_name ";"
subprogram_renaming_declaration ::=
	overriding_indicator? subprogram_specification "renames" callable_entity_name ";"
generic_renaming_declaration ::=
	"generic" "package" defining_program_unit_name "renames" generic_package_name ";"
	"generic" "procedure" defining_program_unit_name "renames" generic_procedure_name ";"
	"generic" "function" defining_program_unit_name "renames" generic_function_name ";"
task_type_declaration ::=
	"task" "type" defining_identifier known_discriminant_part? ("is" ("new" interface_list "with")? task_definition)? ";"
single_task_declaration ::=
	"task" defining_identifier ("is" ("new" interface_list "with")? task_definition)? ";"
task_definition ::=
	task_item* ("private" task_item*)? "end" task_identifier?
task_item ::=
	entry_declaration
	aspect_clause
task_body ::=
	"task" "body" defining_identifier "is" declarative_part "begin" handled_sequence_of_statements "end" task_identifier? ";"
protected_type_declaration ::=
	"protected" "type" defining_identifier known_discriminant_part? "is" ("new" interface_list "with")? protected_definition ";"
single_protected_declaration ::=
	"protected" defining_identifier "is" ("new" interface_list "with")? protected_definition ";"
protected_definition ::=
	protected_operation_declaration* ("private" protected_element_declaration*)? "end" protected_identifier?
protected_operation_declaration ::=
	subprogram_declaration
	entry_declaration
	aspect_clause
protected_element_declaration ::=
	protected_operation_declaration
	component_declaration
protected_body ::=
	"protected" "body" defining_identifier "is" protected_operation_item* "end" protected_identifier? ";"
protected_operation_item ::=
	subprogram_declaration
	subprogram_body
	entry_body
	aspect_clause
entry_declaration ::=
	overriding_indicator? "entry" defining_identifier ("(" discrete_subtype_definition ")")? parameter_profile ";"
accept_statement ::=
	"accept" entry_direct_name ("(" entry_index ")")? parameter_profile ("do" handled_sequence_of_statements "end" entry_identifier?)? ";"
entry_index ::=
	expression
entry_body ::=
	"entry" defining_identifier entry_body_formal_part entry_barrier "is" declarative_part "begin" handled_sequence_of_statements "end" entry_identifier? ";"
entry_body_formal_part ::=
	("(" entry_index_specification ")")? parameter_profile
entry_barrier ::=
	"when" condition
entry_index_specification ::=
	"for" defining_identifier "in" discrete_subtype_definition
entry_call_statement ::=
	entry_name actual_parameter_part? ";"
requeue_statement ::=
	"requeue" entry_name ("with" "abort")? ";"
delay_statement ::=
	delay_until_statement
	delay_relative_statement
delay_until_statement ::=
	"delay" "until" delay_expression ";"
delay_relative_statement ::=
	"delay" delay_expression ";"
select_statement ::=
	selective_accept
	timed_entry_call
	conditional_entry_call
	asynchronous_select
selective_accept ::=
	"select" guard? select_alternative ("or" guard? select_alternative)* ("else" sequence_of_statements)? "end" "select" ";"
guard ::=
	"when" condition "=>"
select_alternative ::=
	accept_alternative
	delay_alternative
	terminate_alternative
accept_alternative ::=
	accept_statement sequence_of_statements?
delay_alternative ::=
	delay_statement sequence_of_statements?
terminate_alternative ::=
	"terminate" ";"
timed_entry_call ::=
	"select" entry_call_alternative "or" delay_alternative "end" "select" ";"
entry_call_alternative ::=
	procedure_or_entry_call sequence_of_statements?
procedure_or_entry_call ::=
	procedure_call_statement
	entry_call_statement
conditional_entry_call ::=
	"select" entry_call_alternative "else" sequence_of_statements "end" "select" ";"
asynchronous_select ::=
	"select" triggering_alternative "then" "abort" abortable_part "end" "select" ";"
triggering_alternative ::=
	triggering_statement sequence_of_statements?
triggering_statement ::=
	procedure_or_entry_call
	delay_statement
abortable_part ::=
	sequence_of_statements
abort_statement ::=
	"abort" task_name ("," task_name)* ";"
compilation ::=
	compilation_unit*
compilation_unit ::=
	context_clause library_item
	context_clause subunit
library_item ::=
	"private"? library_unit_declaration
	library_unit_body
	"private"? library_unit_renaming_declaration
library_unit_declaration ::=
	subprogram_declaration
	package_declaration
	generic_declaration
	generic_instantiation
library_unit_renaming_declaration ::=
	package_renaming_declaration
	generic_renaming_declaration
	subprogram_renaming_declaration
library_unit_body ::=
	subprogram_body
	package_body
parent_unit_name ::=
	name
context_clause ::=
	context_item*
context_item ::=
	with_clause
	use_clause
with_clause ::=
	limited_with_clause
	nonlimited_with_clause
limited_with_clause ::=
	"limited" "private"? "with" library_unit_name ("," library_unit_name)* ";"
nonlimited_with_clause ::=
	"private"? "with" library_unit_name ("," library_unit_name)* ";"
body_stub ::=
	subprogram_body_stub
	package_body_stub
	task_body_stub
	protected_body_stub
subprogram_body_stub ::=
	overriding_indicator? subprogram_specification "is" "separate" ";"
package_body_stub ::=
	"package" "body" defining_identifier "is" "separate" ";"
task_body_stub ::=
	"task" "body" defining_identifier "is" "separate" ";"
protected_body_stub ::=
	"protected" "body" defining_identifier "is" "separate" ";"
subunit ::=
	"separate" "(" parent_unit_name ")" proper_body
exception_declaration ::=
	defining_identifier_list ":" "exception" ";"
handled_sequence_of_statements ::=
	sequence_of_statements ("exception" exception_handler exception_handler*)?
exception_handler ::=
	"when" (choice_parameter_specification ":")? exception_choice ("|" exception_choice)* "=>" sequence_of_statements
choice_parameter_specification ::=
	defining_identifier
exception_choice ::=
	exception_name
	"others"
raise_statement ::=
	"raise" ";"
	"raise" exception_name ("with" string_expression)? ";"
generic_declaration ::=
	generic_subprogram_declaration
	generic_package_declaration
generic_subprogram_declaration ::=
	generic_formal_part subprogram_specification ";"
generic_package_declaration ::=
	generic_formal_part package_specification ";"
generic_formal_part ::=
	"generic" (generic_formal_parameter_declaration | use_clause)*
generic_formal_parameter_declaration ::=
	formal_object_declaration
	formal_type_declaration
	formal_subprogram_declaration
	formal_package_declaration
generic_instantiation ::=
	"package" defining_program_unit_name "is" "new" generic_package_name generic_actual_part? ";"
	overriding_indicator? "procedure" defining_program_unit_name "is" "new" generic_procedure_name generic_actual_part? ";"
	overriding_indicator? "function" defining_designator "is" "new" generic_function_name generic_actual_part? ";"
generic_actual_part ::=
	"(" generic_association ("," generic_association)* ")"
generic_association ::=
	(generic_formal_parameter_selector_name "=>")? explicit_generic_actual_parameter
explicit_generic_actual_parameter ::=
	expression
	variable_name
	subprogram_name
	entry_name
	subtype_mark
	package_instance_name
formal_object_declaration ::=
	defining_identifier_list ":" mode null_exclusion? subtype_mark (":=" default_expression)? ";" defining_identifier_list ":" mode access_definition (":=" default_expression)? ";"
formal_type_declaration ::=
	"type" defining_identifier discriminant_part? "is" formal_type_definition ";"
formal_type_definition ::=
	formal_private_type_definition
	formal_derived_type_definition
	formal_discrete_type_definition
	formal_signed_integer_type_definition
	formal_modular_type_definition
	formal_floating_point_definition
	formal_ordinary_fixed_point_definition
	formal_decimal_fixed_point_definition
	formal_array_type_definition
	formal_access_type_definition
	formal_interface_type_definition
formal_private_type_definition ::=
	("abstract"? "tagged")? "limited"? "private"
formal_derived_type_definition ::=
	"abstract"? ("limited" | "synchronized")? "new" subtype_mark (("and" interface_list)? "with" "private")?
formal_discrete_type_definition ::=
	"(<>)"
formal_signed_integer_type_definition ::=
	"range" "<>"
formal_modular_type_definition ::=
	"mod" "<>"
formal_floating_point_definition ::=
	"digits" "<>"
formal_ordinary_fixed_point_definition ::=
	"delta" "<>"
formal_decimal_fixed_point_definition ::=
	"delta" "<>" "digits" "<>"
formal_array_type_definition ::=
	array_type_definition
formal_access_type_definition ::=
	access_type_definition
formal_interface_type_definition ::=
	interface_type_definition
formal_subprogram_declaration ::=
	formal_concrete_subprogram_declaration
	formal_abstract_subprogram_declaration
formal_concrete_subprogram_declaration ::=
	"with" subprogram_specification ("is" subprogram_default)? ";"
formal_abstract_subprogram_declaration ::=
	"with" subprogram_specification "is" "abstract" subprogram_default? ";"
subprogram_default ::=
	default_name
	"<>"
	"null"
default_name ::=
	name
formal_package_declaration ::=
	"with" "package" defining_identifier "is" "new" generic_package_name formal_package_actual_part ";"
formal_package_actual_part ::=
	"(" ("others" "=>")? "<>)"
	generic_actual_part?
	"(" formal_package_association ("," formal_package_association)* ("," "others" "=><>")? ")"
formal_package_association ::=
	generic_association
	generic_formal_parameter_selector_name "=><>"
aspect_clause ::=
	attribute_definition_clause
	enumeration_representation_clause
	record_representation_clause
	at_clause
local_name ::=
	direct_name
	direct_name "'" attribute_designator
	library_unit_name
attribute_definition_clause ::=
	"for" local_name "'" attribute_designator "use" expression ";"
	"for" local_name "'" attribute_designator "use" name ";"
enumeration_representation_clause ::=
	"for" first_subtype_local_name "use" enumeration_aggregate ";"
enumeration_aggregate ::=
	array_aggregate
record_representation_clause ::=
	"for" first_subtype_local_name "use" "record" mod_clause? component_clause* "end" "record" ";"
component_clause ::=
	component_local_name "at" position "range" first_bit ".." last_bit ";"
position ::=
	static_expression
first_bit ::=
	static_simple_expression
last_bit ::=
	static_simple_expression
code_statement ::=
	qualified_expression ";"
restriction ::=
	restriction_identifier
	restriction_parameter_identifier "=>" restriction_parameter_argument
restriction_parameter_argument ::=
	name
	expression
delta_constraint ::=
	"delta" static_expression range_constraint?
at_clause ::=
	"for" direct_name "use" "at" expression ";"
mod_clause ::=
	"at" "mod" static_expression ";"
non_quotation_mark_graphic_character ::=
	graphic_character
non_end_of_line_character ::=
	"character"
pragma_argument_identifier ::=
	identifier
subtype_name ::=
	name
static_expression ::=
	expression
parent_subtype_indication ::=
	subtype_indication
static_simple_expression ::=
	simple_expression
discrete_subtype_indication ::=
	subtype_indication
discriminant_selector_name ::=
	selector_name
discriminant_direct_name ::=
	direct_name
interface_subtype_mark ::=
	subtype_mark
component_selector_name ::=
	selector_name
label_statement_identifier ::=
	statement_identifier
variable_name ::=
	name
boolean_expression ::=
	expression
loop_statement_identifier ::=
	statement_identifier
loop_identifier ::=
	identifier
block_statement_identifier ::=
	statement_identifier
block_identifier ::=
	identifier
loop_name ::=
	name
label_name ::=
	name
procedure_name ::=
	name
procedure_prefix ::=
	prefix
function_name ::=
	name
function_prefix ::=
	prefix
formal_parameter_selector_name ::=
	selector_name
ancestor_subtype_indication ::=
	subtype_indication
package_name ::=
	name
object_name ::=
	name
exception_name ::=
	name
callable_entity_name ::=
	name
generic_package_name ::=
	name
generic_procedure_name ::=
	name
generic_function_name ::=
	name
task_identifier ::=
	identifier
protected_identifier ::=
	identifier
entry_direct_name ::=
	direct_name
entry_identifier ::=
	identifier
entry_name ::=
	name
delay_expression ::=
	expression
task_name ::=
	name
library_unit_name ::=
	name
string_expression ::=
	expression
generic_formal_parameter_selector_name ::=
	selector_name
subprogram_name ::=
	name
package_instance_name ::=
	name
first_subtype_local_name ::=
	local_name
component_local_name ::=
	local_name
restriction_identifier ::=
	identifier
restriction_parameter_identifier ::=
	identifier
GrammarLabMaintained by Dr. Vadim Zaytsev a.k.a. @grammarware. Last updated in September 2015. [↑]