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grafter.matcha.alpha


askcljmacro

(ask bgps)
(ask bgps db)

Predicate: are there results in a db-or-idx matching bgps patterns?

If called with 1 argument, returns a function of 1 argument: the db-or-idx.

If called with 2 arguments, queries the db-or-idx directly.

Predicate: are there results in a `db-or-idx` matching `bgps` patterns?

If called with 1 argument, returns a function of 1 argument: the `db-or-idx`.

If called with 2 arguments, queries the `db-or-idx` directly.
sourceraw docstring

collection?clj

(collection? x)
source

constructcljmacro

(construct construct-pattern bgps)
(construct construct-pattern bgps db-or-idx)

Query a db-or-idx with bgps patterns, and return data in the form of the construct-pattern.

If called with 2 arguments, returns a function of 1 argument: the db-or-idx, which returns a sequence of results in the form of the construct-pattern.

If called with 3 arguments, queries the db-or-idx directly, returning a sequence of results in the form of the construct-pattern.

Query a `db-or-idx` with `bgps` patterns, and return data in the form of the
`construct-pattern`.

If called with 2 arguments, returns a function of 1 argument: the `db-or-idx`,
which returns a sequence of results in the form of the `construct-pattern`.

If called with 3 arguments, queries the `db-or-idx` directly, returning a
sequence of results in the form of the `construct-pattern`.
sourceraw docstring

construct-1cljmacro

(construct-1 construct-pattern bgps)
(construct-1 construct-pattern bgps db)

Query a db-or-idx with bgps patterns, and return data in the form of the construct-pattern.

If called with 2 arguments, returns a function of 1 argument: the db-or-idx, which returns the first result in the form of the construct-pattern.

If called with 3 arguments, queries the db-or-idx directly, returning the first result in the form of the construct-pattern.

Query a `db-or-idx` with `bgps` patterns, and return data in the form of the
`construct-pattern`.

If called with 2 arguments, returns a function of 1 argument: the `db-or-idx`,
which returns the first result in the form of the `construct-pattern`.

If called with 3 arguments, queries the `db-or-idx` directly, returning the
first result in the form of the `construct-pattern`.
sourceraw docstring

find-vars-in-treeclj

(find-vars-in-tree tree)
source

group-subjectsclj

(group-subjects solutions)
source

index-triplesclj

(index-triples db)

Return an indexed database of triples. Indexing a database will result in better performance if you want to run multiple queries over the same database.

All query functions should accept either a sequence of triples or an indexed database.

Return an indexed database of triples. Indexing a database will
result in better performance if you want to run multiple queries
over the same database.

All query functions should accept either a sequence of triples or an
indexed database.
sourceraw docstring

merge-dbsclj

(merge-dbs & dbs)

Merges all supplied Matcha databases together into one. Any individual database form can either be indexed already with index-triples, or a sequence of triples, in which case the triples will be indexed before being combined with any other databases.

Merges all supplied Matcha databases together into one.  Any
individual database form can either be indexed already with
index-triples, or a sequence of triples, in which case the triples
will be indexed before being combined with any other databases.
sourceraw docstring

query-var?clj

(query-var? sym)

Test whether supplied sym is a query variable. Query variables are symbols who's name begin with a ?.

Test whether supplied sym is a query variable.  Query variables are
symbols who's name begin with a ?.
sourceraw docstring

replace-vars-with-valsclj

(replace-vars-with-vals construct-pattern binding-maps)
source

selectcljmacro

(select bgps)
(select project-vars bgps)
(select project-vars bgps db-or-idx)

Query a db-or-idx with bgps patterns.

If called with 1 argument, select finds all ?vars in the bgps patterns and returns a function of 1 argument: the db-or-idx, which returns a sequence of results.

If called with 2 arguments, returns a function of 1 argument: the db-or-idx, which returns a sequence of results with the ?vars in project-vars projected.

If called with 3 arguments, queries the db-or-idx directly, returning a sequence of results with the ?vars in project-vars projected.

Query a `db-or-idx` with `bgps` patterns.

If called with 1 argument, `select` finds all `?vars` in the `bgps` patterns
and returns a function of 1 argument: the `db-or-idx`, which returns a
sequence of results.

If called with 2 arguments, returns a function of 1 argument: the `db-or-idx`,
which returns a sequence of results with the `?vars` in `project-vars`
projected.

If called with 3 arguments, queries the `db-or-idx` directly, returning a
sequence of results with the `?vars` in `project-vars` projected.
sourceraw docstring

select-1cljmacro

(select-1 bgps)
(select-1 project-vars bgps)
(select-1 project-vars bgps db)

Query a db-or-idx with bgps patterns.

If called with 1 argument, select finds all ?vars in the bgps patterns and returns a function of 1 argument: the db-or-idx, which returns the first result.

If called with 2 arguments, returns a function of 1 argument: the db-or-idx, which returns the first result with ?vars in project-varsprojected.

If called with 3 arguments, queries the db-or-idx directly, returning the first result with ?vars in project-vars projected.

Query a `db-or-idx` with `bgps` patterns.

If called with 1 argument, `select` finds all `?vars` in the `bgps` patterns
and returns a function of 1 argument: the `db-or-idx`, which returns the first
result.

If called with 2 arguments, returns a function of 1 argument: the `db-or-idx`,
which returns the first result with `?vars` in `project-vars`projected.

If called with 3 arguments, queries the `db-or-idx` directly, returning the
first result with `?vars` in `project-vars` projected.
sourceraw docstring

tripleclj

source

triple-vector->idx-tripleclj

(triple-vector->idx-triple [s p o])

Assume triples are either 3/tuple vectors or can be destructured as such. Grafter Quad objects can be destructured in this manner.

Assume triples are either 3/tuple vectors or can be destructured as
such.  Grafter Quad objects can be destructured in this manner.
sourceraw docstring

unify-solutionsclj

(unify-solutions projected-vars solutions)
source

valid-bgps?clj

(valid-bgps? bgps)
source

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