Library version. major and minor are synchronised across all
implementations; patch may differ per implementation.
Compile-time library version constant.
Declarative argument specification attached to a command.
Preferred over direct initialisation — use the arg_is_int /
arg_is_real / arg_is_char / arg_is_rest constructor functions.
When a command has an args= spec the engine validates count and types
before invoking the action; failure short-circuits with RC_ERROR.
Read-only description of one command in the current state, returned by
engine_t%available_commands. The result depends only on the state name;
safe to cache keyed by state name after finalize.
State-graph driven command interpreter.
Doubly-linked list with polymorphic element storage.
Iterate with iterate / reverse_iterate, or access by index with get.
Abstract base for list element data. Extend this type to store custom data.
Node holding a single integer value.
Node holding a single real(8) value.
Node holding a real(8) rank-1 array.
Node holding a real(8) rank-2 array.
Node holding an allocatable character string.
Construct an integer node.
Construct a real(8) scalar node.
Construct a real(8) rank-1 array node.
Construct a real(8) rank-2 array node.
Construct a character node.
Generic node constructor — dispatches on argument type.
Visitor procedure signature for iterate / reverse_iterate.
Set ok = .false. to stop iteration early.