link.graph.dsl package

Submodules

link.graph.dsl.generator module

class link.graph.dsl.generator.GraphDSLGenerator(*args, **kwargs)

Bases: object

exception Error

Bases: exceptions.Exception

GraphDSLGenerator.MODEL_PREFIX = 'GraphDSL'

GraphDSLGenerator.grammar

GraphDSLGenerator.load_grammar()

link.graph.dsl.generator.single_parser_per_scope(_scope=None, _renew=False)

link.graph.dsl.semantic module

link.graph.dsl.lexer module

class link.graph.dsl.lexer.GraphDSLLexer(**options)

Bases: pygments.lexer.RegexLexer

aliases = ['graphdsl']

filenames = []

name = 'GraphDSL'

tokens = {'string_double': [('"', Token.Literal.String, '#pop'), ('\\\\([\\\\abfnrtv"\\\']|x[a-fA-F0-9]{2,4}|u[a-fA-F0-9]{4}|U[a-fA-F0-9]{8}|[0-7]{1,3})', Token.Literal.String.Escape), ('[^\\\\"\\\'\\n]+', Token.Literal.String), ('\\\\\\n', Token.Literal.String), ('\\\\', Token.Literal.String)], 'string_single': [("'", Token.Literal.String, '#pop'), ('\\\\([\\\\abfnrtv"\\\']|x[a-fA-F0-9]{2,4}|u[a-fA-F0-9]{4}|U[a-fA-F0-9]{8}|[0-7]{1,3})', Token.Literal.String.Escape), ('[^\\"\\\\\'\\n]+', Token.Literal.String), ('\\\\\\n', Token.Literal.String), ('\\\\', Token.Literal.String)], 'root': [('\\b(INSERT|SELECT|UPDATE|DELETE)\\b', Token.Keyword.Reserved), ('\\b(SET|ADDTOSET|UNSET|DELFROMSET)\\b', Token.Name.Function), ('\\b(FROM|THROUGH|TO|SOURCE|TARGET)\\b', Token.Keyword.Reserved), ('\\b(AS|AND|OR)\\b', Token.Keyword.Reserved), ('\\b(REL|NODE)\\b', Token.Name.Class), ('\\b(DEPTH|BREADTH|BACKWARD|FORWARD|BOTH)\\b', Token.Keyword.Constant), ('\\b(RELS|NODES|TRUE|FALSE)\\b', Token.Name.Builtin), ('(L?)(")', <function callback at 0x7fe8121bf050>, 'string_double'), ("(L?)(')", <function callback at 0x7fe8121bf0c8>, 'string_single'), ('\\b(\\d+\\.\\d*|\\.\\d+|\\d+)\\b', Token.Literal.Number.Float), ('([a-zA-Z_][a-zA-Z0-9_]*)', Token.Name.Label), ('((<)|(<=)|(=)|(!=)|(>=)|(>)|(~=))', Token.Operator), ('(\\(|\\)|\\{|\\}|(\\.\\.)|\\.|,)', Token.Punctuation), ('\\n', Token.Text.Whitespace), ('\\s+', Token.Text.Whitespace)]}

link.graph.dsl.walker.core module

class link.graph.dsl.walker.core.GraphDSLNodeWalker(graphmgr, *args, **kwargs)

Bases: grako.model.DepthFirstWalker

walk_AliasNode(node, children_retval)

walk_AndFilterNode(node, children_retval)

walk_AssignAddNode(node, children_retval)

walk_AssignSetNode(node, children_retval)

walk_BooleanNode(node, children_retval)

walk_CRUDBlock(node, children_retval)

walk_CreateStatementNode(node, children_retval)

walk_DecimalNode(node, children_retval)

walk_DeleteStatementNode(node, children_retval)

walk_FromNode(node, children_retval)

walk_InnerFilterNode(node, children_retval)

walk_IntegerNode(node, children_retval)

walk_NaturalNode(node, children_retval)

walk_NodeTypeNode(node, children_retval)

walk_OrFilterNode(node, children_retval)

walk_ReadStatementNode(node, children_retval)

walk_RelationTypeNode(node, children_retval)

walk_RequestNode(node, children_retval)

walk_StringNode(node, children_retval)

walk_TermFilterNode(node, children_retval)

walk_ThroughNode(node, children_retval)

walk_ToNode(node, children_retval)

walk_TypeNode(node, children_retval)

walk_TypedFilterNode(node, children_retval)

walk_UpdateAddPropertyNode(node, children_retval)

walk_UpdateDelPropertyNode(node, children_retval)

walk_UpdateSetPropertyNode(node, children_retval)

walk_UpdateStatementNode(node, children_retval)

walk_UpdateUnsetPropertyNode(node, children_retval)

walk_ValueNode(node, children_retval)

walk_WalkModeNode(node, children_retval)

link.graph.dsl.walker.walkthrough module

class link.graph.dsl.walker.walkthrough.Walkthrough(graphmgr, *args, **kwargs)

Bases: object

backward_breadth_nodes(nodes, rel_ids)

backward_depth_nodes(nodes, rel_ids, begin, end, iteration=0)

breadth_nodes(nodes, rel_ids, begin, end, func)

depth_nodes(nodes, rel_ids, begin, end, func)

filter_nodes(nodes, to)

forward_breadth_nodes(nodes, rel_ids)

forward_depth_nodes(nodes, rel_ids, begin, end, iteration=0)

select_nodes(fromstmt, aliased_sets)

select_relationships(throughnode, aliased_sets)

uniq_elts(aliased_set)

walk_nodes(startnodes, rels, walkmode)

link.graph.dsl.walker.walkthrough.getmapfunc(key, match)

link.graph.dsl.walker.walkthrough.reducefunc(reducer, key, values)

link.graph.dsl.walker.crud module

class link.graph.dsl.walker.crud.CRUDOperations(graphmgr, *args, **kwargs)

Bases: object

compute_result(data_id, ids, result)

create_element(store, statement, aliased_sets)

do_CreateStatementNode(statement, aliased_sets)

do_DeleteStatementNode(statement, aliased_sets)

do_NodeTypeNode(statement, aliased_sets)

do_ReadStatementNode(statement, aliased_sets)

do_RelationTypeNode(statement, aliased_sets)

do_UpdateAddPropertyNode(statement, aliased_sets)

do_UpdateDelPropertyNode(statement, aliased_sets)

do_UpdateSetPropertyNode(statement, aliased_sets)

do_UpdateStatementNode(statement, aliased_sets)

do_UpdateUnsetPropertyNode(statement, aliased_sets)

get_links(statement, aliased_sets)

link.graph.dsl.walker.filter module

Module contents