implicitMultiplyRule

function implicitMultiplyRule(priority?, canStart?): NormalizerRule;

Defined in: packages/engine/src/normalizer/BuiltinNormalizerRules.ts:72

Creates a normalization rule that inserts an implicit multiplication operator between adjacent tokens where multiplication is implied.

When it fires

Inserts a STAR token between:

• NUMBER IDENT (e.g., “2 x” → “2 * x”)
• RPAREN IDENT (e.g., “(x+1)y” → “(x+1) * y”)
• NUMBER LPAREN (e.g., “2(x+1)” → “2 * (x+1)”)
• NUMBER PI / NUMBER E (e.g., “2π” → “2 * π”)

When it doesn’t fire

• When the following identifier starts a multi-word phrase (checked against PHRASE_START_WORDS)
• When the following token is not an identifier or parenthesized expression

Priority

Default priority is 50, below phrase fusion so phrases match first.

Parameters

Parameter	Type	Default value	Description
priority	number	50	Rule priority (default 50)
canStart?	(word) => boolean	undefined	-

Returns

NormalizerRule

A NormalizerRule that inserts implicit multiply operators