rdf 0.15.0 · OCaml Package

module T = Sparql_types

type error =

| Variable_already_defined of Sparql_types.var
| Unknown_prefix of Sparql_types.pname_ns

exception Error of error

val error : error -> 'a

val string_of_error : error -> string

type query = {

query_proj : Sparql_types.select_clause option;
query_where : Sparql_types.group_graph_pattern;
query_modifier : Sparql_types.solution_modifier;
query_values : Sparql_types.values_clause;

}

type filter = Sparql_types.constraint_

exception Implicit_aggregate_found

type path =

| Var of Sparql_types.var
| Iri of Sparql_types.iriloc
| Inv of path
| Alt of path * path
| Seq of path * path
| ZeroOrMore of path
| OneOrMore of path
| ZeroOrOne of path
| NPS of Sparql_types.iriloc list

type triple = Sparql_types.var_or_term * path * Sparql_types.var_or_term

module VS = Sparql_types.VarSet

type algebra =

| BGP of triple list
| Join of algebra * algebra
| LeftJoin of algebra * algebra * filter list
| Filter of algebra * filter list
| Union of algebra * algebra
| Graph of Sparql_types.var_or_iri * algebra
| Extend of algebra * Sparql_types.var * Sparql_types.expression
| Minus of algebra * algebra
| ToMultiset of algebra
| DataToMultiset of Sparql_types.datablock
| Group of Sparql_types.group_condition list * algebra
| Aggregation of Sparql_types.aggregate
| AggregateJoin of algebra * algebra list
| Project of algebra * VS.t
| Distinct of algebra
| Reduced of algebra
| Slice of algebra * int option * int option
| OrderBy of algebra * Sparql_types.order_condition list

val visible_vars : query -> VS.t

val collect_and_remove_filters : 
  Sparql_types.graph_pattern_elt list ->
  Sparql_types.constraint_ list * Sparql_types.graph_pattern_elt list

val fresh_var : unit -> Sparql_types.var

val path_iri_first : path

val path_iri_rest : path

val iri_nil : T.iri

val iri_type : Sparql_types.iriloc

val path_iri_type : path

val translate_path : Sparql_types.path -> path

val translate_path_sequence : Sparql_types.path_sequence -> path

val translate_path_elt_or_inverse : T.path_elt_or_inverse -> path

val translate_path_elt : T.path_elt -> path

val translate_path_primary : Sparql_types.path_primary -> path

val partition_path_one_in_prop_set : 
  Sparql_types.path_one_in_prop_set list ->
  Sparql_types.iriloc list * Sparql_types.iriloc list

val translate_property_path_pattern : 
  (T.var_or_term * path * T.var_or_term) list ->
  (T.var_or_term * path * T.var_or_term) ->
  (T.var_or_term * path * T.var_or_term) list

val translate_property_path_patterns : 
  triple list ->
  (T.var_or_term * path * T.var_or_term) list

val build_triples_path : 
  T.var_or_term ->
  triple list ->
  T.prop_object_list ->
  triple list

val build_triples_prop_graph_node : 
  T.var_or_term ->
  path ->
  triple list ->
  Sparql_types.object_ ->
  triple list

val build_triples_path_collection : 
  triple list ->
  T.var_or_term ->
  Sparql_types.object_ list ->
  triple list

val translate_triples_same_subject_path : 
  triple list ->
  T.triples_same_subject ->
  (T.var_or_term * path * T.var_or_term) list

val translate_ggp : T.group_graph_pattern -> algebra

val translate_subselect : Sparql_types.sub_select -> algebra

val translate_ggp_sub : Sparql_types.ggp_sub -> algebra

val translate_triples_block : T.triples_block -> algebra

val translate_union : T.group_graph_pattern list -> algebra

val translate_service : T.service_graph_pattern -> algebra

val translate_inline_data : T.datablock -> algebra

val has_implicit_grouping : query -> bool

val aggregation_step : 
  query ->
  algebra ->
  algebra * (Sparql_types.var * Sparql_types.expression) list * query

val translate_query_level : query -> algebra

val p : Stdlib.Buffer.t -> string -> unit

val string_of_var : Sparql_types.var -> string

val string_of_var_or_term : Sparql_types.var_or_term -> string

val string_of_path : path -> string

val string_of_triple : 
  (Sparql_types.var_or_term * path * Sparql_types.var_or_term) ->
  string

val print_triple : 
  string ->
  Stdlib.Buffer.t ->
  (Sparql_types.var_or_term * path * Sparql_types.var_or_term) ->
  unit

val print_triples : 
  string ->
  Stdlib.Buffer.t ->
  (Sparql_types.var_or_term * path * Sparql_types.var_or_term) list ->
  unit

val print_expr : Stdlib.Buffer.t -> Sparql_types.expression -> unit

val print_group_condition : 
  Stdlib.Buffer.t ->
  Sparql_types.group_condition ->
  unit

val print_order_cond : Stdlib.Buffer.t -> Sparql_types.order_condition -> unit

val print_order_conds : 
  Stdlib.Buffer.t ->
  Sparql_types.order_condition list ->
  unit

val print : string -> Stdlib.Buffer.t -> algebra -> unit

val string_of_algebra : algebra -> string

package rdf