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Add lexer/detector for zed
Reference: https://docs.authzed.com/reference/schema-lang Used by project SpiceDB (https://github.com/authzed/spicedb), a database system for managing security-critical permissions checking, inspired by Google's Zanzibar paper
This commit is contained in:
Joseph Schorr
Alec Thomas
parent
202379826e
commit
0fcd2d8e0e
29
lexers/testdata/zed.actual
vendored
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29
lexers/testdata/zed.actual
vendored
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@ -0,0 +1,29 @@
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/**
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* Project is a project.
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*/
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definition test/project {
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relation issue_creator: role#member
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relation issue_assigner: role#member
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relation any_issue_resolver: role#member
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relation assigned_issue_resolver: role#member
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relation comment_creator: role#member
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relation comment_deleter: role#member
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relation role_manager: role#member
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permission create_issue = issue_creator
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permission create_role = role_manager
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}
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definition role {
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/** project is the project */
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relation project: project
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relation member: user
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relation built_in_role: project
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permission delete = project->role_manager - built_in_role->role_manager
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permission add_user = project->role_manager
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permission add_permission = project->role_manager & built_in_role->role_manager
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// with arrows!
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permission remove_permission = project->role_manager + built_in_role->role_manager
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}
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175
lexers/testdata/zed.expected
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175
lexers/testdata/zed.expected
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@ -0,0 +1,175 @@
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[
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{"type":"CommentMultiline","value":"/**\n * Project is a project.\n */"},
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{"type":"TextWhitespace","value":"\n"},
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{"type":"KeywordType","value":"definition"},
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{"type":"TextWhitespace","value":" "},
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{"type":"NameNamespace","value":"test/"},
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{"type":"Name","value":"project"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Punctuation","value":"{"},
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{"type":"TextWhitespace","value":"\n\t"},
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{"type":"KeywordNamespace","value":"relation"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"issue_creator"},
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{"type":"Operator","value":":"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"role"},
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{"type":"NameVariable","value":"#member"},
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{"type":"TextWhitespace","value":"\n\t"},
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{"type":"KeywordNamespace","value":"relation"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"issue_assigner"},
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{"type":"Operator","value":":"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"role"},
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{"type":"NameVariable","value":"#member"},
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{"type":"TextWhitespace","value":"\n\t"},
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{"type":"KeywordNamespace","value":"relation"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"any_issue_resolver"},
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{"type":"Operator","value":":"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"role"},
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{"type":"NameVariable","value":"#member"},
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{"type":"TextWhitespace","value":"\n\t"},
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{"type":"KeywordNamespace","value":"relation"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"assigned_issue_resolver"},
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{"type":"Operator","value":":"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"role"},
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{"type":"NameVariable","value":"#member"},
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{"type":"TextWhitespace","value":"\n\t"},
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{"type":"KeywordNamespace","value":"relation"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"comment_creator"},
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{"type":"Operator","value":":"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"role"},
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{"type":"NameVariable","value":"#member"},
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{"type":"TextWhitespace","value":"\n\t"},
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{"type":"KeywordNamespace","value":"relation"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"comment_deleter"},
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{"type":"Operator","value":":"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"role"},
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{"type":"NameVariable","value":"#member"},
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{"type":"TextWhitespace","value":"\n\t"},
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{"type":"KeywordNamespace","value":"relation"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"role_manager"},
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{"type":"Operator","value":":"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"role"},
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{"type":"NameVariable","value":"#member"},
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{"type":"TextWhitespace","value":"\n\t\n\t"},
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{"type":"KeywordDeclaration","value":"permission"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"create_issue"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Operator","value":"="},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"issue_creator"},
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{"type":"TextWhitespace","value":"\n\t"},
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{"type":"KeywordDeclaration","value":"permission"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"create_role"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Operator","value":"="},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"role_manager"},
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{"type":"TextWhitespace","value":"\n"},
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{"type":"Punctuation","value":"}"},
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{"type":"TextWhitespace","value":"\n\n"},
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{"type":"KeywordType","value":"definition"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"role"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Punctuation","value":"{"},
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{"type":"TextWhitespace","value":"\n "},
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{"type":"CommentMultiline","value":"/** project is the project */"},
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{"type":"TextWhitespace","value":"\n\t"},
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{"type":"KeywordNamespace","value":"relation"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"project"},
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{"type":"Operator","value":":"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"project"},
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{"type":"TextWhitespace","value":"\n\t"},
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{"type":"KeywordNamespace","value":"relation"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"member"},
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{"type":"Operator","value":":"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"user"},
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{"type":"TextWhitespace","value":"\n\t"},
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{"type":"KeywordNamespace","value":"relation"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"built_in_role"},
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{"type":"Operator","value":":"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"project"},
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{"type":"TextWhitespace","value":"\n\t\n\t"},
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{"type":"KeywordDeclaration","value":"permission"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"delete"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Operator","value":"="},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"project"},
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{"type":"Operator","value":"-\u003e"},
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{"type":"Name","value":"role_manager"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Operator","value":"-"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"built_in_role"},
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{"type":"Operator","value":"-\u003e"},
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{"type":"Name","value":"role_manager"},
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{"type":"TextWhitespace","value":"\n\t"},
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{"type":"KeywordDeclaration","value":"permission"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"add_user"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Operator","value":"="},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"project"},
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{"type":"Operator","value":"-\u003e"},
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{"type":"Name","value":"role_manager"},
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{"type":"TextWhitespace","value":"\n\t"},
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{"type":"KeywordDeclaration","value":"permission"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"add_permission"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Operator","value":"="},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"project"},
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{"type":"Operator","value":"-\u003e"},
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{"type":"Name","value":"role_manager"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Operator","value":"\u0026"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"built_in_role"},
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{"type":"Operator","value":"-\u003e"},
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{"type":"Name","value":"role_manager"},
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{"type":"TextWhitespace","value":"\n\n "},
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{"type":"CommentSingle","value":"// with arrows!\n"},
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{"type":"TextWhitespace","value":"\t"},
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{"type":"KeywordDeclaration","value":"permission"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"remove_permission"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Operator","value":"="},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"project"},
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{"type":"Operator","value":"-\u003e"},
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{"type":"Name","value":"role_manager"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Operator","value":"+"},
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{"type":"TextWhitespace","value":" "},
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{"type":"Name","value":"built_in_role"},
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{"type":"Operator","value":"-\u003e"},
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{"type":"Name","value":"role_manager"},
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{"type":"TextWhitespace","value":"\n"},
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{"type":"Punctuation","value":"}"}
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]
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53
lexers/z/zed.go
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53
lexers/z/zed.go
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@ -0,0 +1,53 @@
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package z
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import (
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"strings"
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. "github.com/alecthomas/chroma" // nolint
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"github.com/alecthomas/chroma/lexers/internal"
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)
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// Zed lexer.
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var Zed = internal.Register(MustNewLazyLexer(
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&Config{
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Name: "Zed",
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Aliases: []string{"zed"},
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Filenames: []string{"*.zed"},
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MimeTypes: []string{"text/zed"},
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},
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zedRules,
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).SetAnalyser(func(text string) float32 {
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if strings.Contains(text, "definition ") && strings.Contains(text, "relation ") && strings.Contains(text, "permission ") {
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return 0.9
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}
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if strings.Contains(text, "definition ") {
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return 0.5
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}
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if strings.Contains(text, "relation ") {
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return 0.5
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}
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if strings.Contains(text, "permission ") {
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return 0.25
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}
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return 0.0
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}))
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func zedRules() Rules {
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return Rules{
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"root": {
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{`\n`, TextWhitespace, nil},
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{`\s+`, TextWhitespace, nil},
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{`//.*?\n`, CommentSingle, nil},
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{`/(\\\n)?[*][\w\W]*?[*](\\\n)?/`, CommentMultiline, nil},
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{`/(\\\n)?[*][\w\W]*`, CommentMultiline, nil},
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{Words(``, `\b`, `definition`), KeywordType, nil},
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{Words(``, `\b`, `relation`), KeywordNamespace, nil},
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{Words(``, `\b`, `permission`), KeywordDeclaration, nil},
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{`[a-zA-Z_]\w*/`, NameNamespace, nil},
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{`[a-zA-Z_]\w*`, Name, nil},
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{`#[a-zA-Z_]\w*`, NameVariable, nil},
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{`[+%=><|^!?/\-*&~:]`, Operator, nil},
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{`[{}()\[\],.;]`, Punctuation, nil},
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},
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}
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}
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