Description

The ExpressionParser class allows you to implement an expression parser.

Properties

expression

Expression string.

public expression(): string

• returns: string - expression string.

public expression(value: string)

• value: string - expression string.

initialTokens

List of original expression tokens.

public initialTokens(): ExpressionToken[]

• returns: ExpressionToken[] - list of expression tokens.

originalTokens

Gets the original tokens

public originalTokens(): Token[]

• returns: Token[] - the token list

Sets the original tokens

public originalTokens(value: Token[])

• value: Token[] - the token list

resultTokens

List of parsed expression tokens.

public resultTokens(): ExpressionToken[]

• returns: ExpressionToken[] - list of expression tokens.

variableNames

List of found variable names.

public variableNames(): string[]

• returns: string[] - list of found variable names.

Instance methods

clear

Clears parsing results.

public clear(): void

parseString

Sets a new expression string and parses it into internal byte code.

public parseString(expression: string): void

• expression: string - new expression string.

parseTokens

Parses a given token.

public parseTokens(tokens: Token[]): void

• tokens: Token[] - token to be parsed.