+
Point of view
All features
deferred class PACKRAT_PATTERN
Summary
An ordered series of alternatives
Direct parents
Inherit list: PACKRAT_PRIMARY
Insert list: PACKRAT_INTERNAL, TRISTATE_VALUES
Known children
Inherit list: PACKRAT_ALTERNATIVE, PACKRAT_CHOICE
Overview
Features
{ANY}
{PACKRAT_INTERNAL}
{ANY}
{ANY}
{PACKRAT_INTERNAL}
{PACKRAT_INTERNAL, PACKRAT_VISITOR}
{}
{}
  • log: LOGGER
    There is one logger per concrete type; for performance reasons it is cached in each instance.
  • log_memory__0_: LOGGER
    The cached logger.
{ANY}
is_coherent: BOOLEAN
deferred function
{ANY}
ensure
  • must_be_coherent: Result
infix "/" (other: PACKRAT_ALTERNATIVE): PACKRAT_PATTERN
deferred function
{ANY}
require
  • other /= Void
set_default_tree_builders (non_terminal_builder: PROCEDURE[TUPLE 2[FIXED_STRING, TRAVERSABLE[FIXED_STRING]]], terminal_builder: PROCEDURE[TUPLE 2[FIXED_STRING, PARSER_IMAGE]])
deferred procedure
hash_code: INTEGER_32
effective function
{ANY}
The hash-code value of Current.
ensure
  • good_hash_value: Result >= 0
is_equal (other: PACKRAT_PATTERN): BOOLEAN
effective function
{ANY}
Is other attached to an object considered equal to current object?
require
      • other /= Void
      • other /= Void
    • other /= Void
ensure
  • commutative: generating_type = other.generating_type implies Result = other.is_equal(Current)
  • Result implies hash_code = other.hash_code
positive_lookahead: PACKRAT_ALTERNATIVE
frozen
effective function
{ANY}
prefix "@": PACKRAT_ALTERNATIVE
effective function
{ANY}
negative_lookahead: PACKRAT_ALTERNATIVE
frozen
effective function
{ANY}
prefix "~": PACKRAT_ALTERNATIVE
effective function
{ANY}
accept (visitor: PACKRAT_VISITOR)
deferred procedure
{ANY}
Accept to be visited by the visitor.
require
  • visitor /= Void
parse (context: PACKRAT_PARSE_CONTEXT): TRISTATE
frozen
effective function
require
  • context /= Void
ensure
  • not Result.is_equal(yes) implies context.buffer.current_index = old context.buffer.current_index
set_nt (a_nt: PACKRAT_NON_TERMINAL)
effective procedure
require
  • a_nt /= Void
ensure
  • nt = a_nt
writable attribute
set_paren (a_paren: BOOLEAN)
effective procedure
ensure
need_paren: BOOLEAN
writable attribute
pack_parse (context: PACKRAT_PARSE_CONTEXT): TRISTATE
deferred function
{}
require
  • context /= Void
ensure
  • not Result.is_equal(yes) implies context.buffer.current_index = old context.buffer.current_index
log: LOGGER
effective function
{}
There is one logger per concrete type; for performance reasons it is cached in each instance.
ensure
  • Result /= Void
log_memory__0_: LOGGER
writable attribute
{}
The cached logger.
The ugly name is intentional. Don't use directly.
yes: TRISTATE
effective function
{ANY}
effective function
{ANY}
maybe: TRISTATE
effective function
{ANY}