Arthur

Arthur is a semantic language-agnostic UAST (universal abstract syntax tree) schema generator which uses source code as input and outputs unilingual and omnilingual ontologies derived from those language(s). Arthur parses source code using Babelfish and constructs the observed schema for use in a Grakn knowledge graph.

Schemas

Omnilingual Schema

Languages	Segments
Bash, C++, C#, Go, Java, JavaScript, PHP, Python, Ruby	Arthur_Omnilingual_Base_Structure.gql Arthur_Omnilingual_Semantic_Roles.gql

Unilingual Schemas

Language	Segments
Bash	Arthur_Bash_Base_Structure.gql Arthur_Bash_Semantic_Roles.gql
C++	Arthur_Cplusplus_Base_Structure.gql Arthur_Cplusplus_Semantic_Roles.gql
C#	Arthur_Csharp_Base_Structure.gql Arthur_Csharp_Semantic_Roles.gql
Go	Arthur_Go_Base_Structure.gql Arthur_Go_Semantic_Roles.gql
Java	Arthur_Java_Base_Structure.gql Arthur_Java_Semantic_Roles.gql
JavaScript	Arthur_Javascript_Base_Structure.gql Arthur_Javascript_Semantic_Roles.gql
PHP	Arthur_Php_Base_Structure.gql Arthur_Php_Semantic_Roles.gql
Python	Arthur_Python_Base_Structure.gql Arthur_Python_Semantic_Roles.gql
Ruby	Arthur_Ruby_Base_Structure.gql Arthur_Ruby_Semantic_Roles.gql

Supported Concepts

Structural

Conditional

• If/ElseIf/Else
• Switch/SwitchCase

Exception

• Try/Catch/Finally

Loop

• ForLoop
• ForEachLoop
• WhileLoop
• DoWhileLoop

Operator

Logical

• AndOperator
• OrOperator

Misc

• TernaryOperator

Relational

• RelationalOperator

Compare

• IsEqualOperator/IsNotEqualOperator
• IsEqualTypeOperator/IsNotEqualTypeOperator

Define

• DeclareVariableOperator
• InitializeVariableOperator

Misc

• Child
• Function
• InternalRole
• Language
• Literal
• Multi
• Name
• Role
• Token
• Type
• Wildcard