Struct Expression 

pub struct Expression;

Stateless entry points for the CRUDUI expression engine.

Implementations

impl Expression

pub fn tokenize(expression: &str) -> Result<Vec<Token>, ParseError>

Tokenize an expression. WHITESPACE excluded; ends with EOF.

pub fn parse(expression: &str) -> Result<Node, ParseError>

Parse an expression into its AST.

pub fn evaluate( expression: &str, form_data: &Value, current_path: &[String], row_keys: &[usize], ) -> Result<bool, ParseError>

Evaluate to a truthy boolean (show/display call site).

pub fn evaluate_value( expression: &str, form_data: &Value, current_path: &[String], row_keys: &[usize], ) -> Result<Value, ParseError>

Evaluate to the raw value (class/style/number/null call site).