1package main 2 3type Statement Peg {} 4 5Statement <- WS? (Assignment / Action / Expression) WS? !. 6Assignment <- Variable WS? '=' WS? Expression 7Variable <- [a-zA-Z_][a-zA-Z0-9_]* 8Expression <- (StringLiteral / Indexing / Search / Variable) 9StringLiteral <- '"' QuotedText '"' 10QuotedText <- (EscapedChar / [^\\"])* 11EscapedChar <- '\\' [\\n"] 12Indexing <- Variable ('[' Index ']')+ 13Index <- [0-9a-z]+ 14Search <- Variable '[' WS? 'where' WS Query ']' 15Action <- Expression '.' Command 16Command <- Function '(' Args? ')' 17Function <- [a-zA-Z]+ 18Args <- StringLiteral (WS? ',' WS? Args) 19Query <- Conjunctions (WS? '||' WS? Conjunctions)? 20Conjunctions <- Conjunction (WS? '&&' WS? Conjunctions)? 21Conjunction <- Field WS? Relation WS? StringLiteral 22Field <- [a-z][a-zA-Z0-9]* 23Relation <- ('==' / '!=' / 'contains' / 'startsWith' / 'endsWith') 24 25WS <- [ \t]+ 26