FieldFilterHandlerWithColors is a helper function that converts a string of colors into a slice of colors and calls the given handler.

LexString takes a string and returns a slice of tokens.

ParseQuery parses a query string and returns a node that can be converted to a bones predicate.

FamilyKeyword represents a keyword token such as OR or AND.

FamilyLiteral represents a literal token such as a string or number.

FamilyOperator represents an operator token such as >, <, =, !=, etc.

FamilyParen represents a parenthesis token such as ( or ).

DefaultParser is a parser with the standard set of fields already registered.

ErrNoField is returned when a query specifies a field that does not exist.

ErrNoOperationForField is returned when a field does not support a given operator.

FieldFilter represents a field in the query and the associated handlers for each operation that field supports.

Parser holds a list of fields that have been registered and will be used to parse queries.

Token represents a single token in the query.

FieldFilterHandler is a function that can return an AST node for a given value.

TokenFamily represents the general category of a token, such as a literal, keyword, or operator.