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fix: #3422 parse dot operators after an implicit multiplication with symbol E #3425

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Merged
gwhitney merged 1 commit into from
Mar 19, 2025
Merged

fix: #3422 parse dot operators after an implicit multiplication with symbol E #3425

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2 changes: 1 addition & 1 deletion src/expression/parse.js
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Original file line number Diff line number Diff line change
Expand Up @@ -420,7 +420,7 @@ export const createParse = /* #__PURE__ */ factory(name, dependencies, ({
if (parse.isDecimalMark(currentCharacter(state), nextCharacter(state))) {
throw createSyntaxError(state, 'Digit expected, got "' + currentCharacter(state) + '"')
}
} else if (nextCharacter(state) === '.') {
} else if (parse.isDecimalMark(nextCharacter(state), state.expression.charAt(state.index + 2))) {
next(state)
throw createSyntaxError(state, 'Digit expected, got "' + currentCharacter(state) + '"')
}
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15 changes: 15 additions & 0 deletions test/unit-tests/expression/parse.test.js
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Expand Up @@ -290,6 +290,21 @@ describe('parse', function () {
approxEqual(parseAndEval('2e'), 2 * Math.E)
})

it('should parse dot operators after a value', function () {
approxEqual(parseAndEval('2.*3'), 6)
approxEqual(parseAndEval('2./3'), 2 / 3)
approxEqual(parseAndEval('2.^3'), 2 ** 3)
})

it('should parse dot operators after an implicit multiplication with symbol E', function () {
approxEqual(parseAndEval('2E.*3'), 2 * Math.E * 3)
approxEqual(parseAndEval('2E./3'), 2 * Math.E / 3)
approxEqual(parseAndEval('2E.^3'), 2 * Math.E ** 3)
approxEqual(parseAndEval('2e.*3'), 2 * Math.E * 3)
approxEqual(parseAndEval('2e./3'), 2 * Math.E / 3)
approxEqual(parseAndEval('2e.^3'), 2 * Math.E ** 3)
})

it('should throw an error with invalid numbers', function () {
assert.throws(function () { parseAndEval('.') }, /Value expected/)
assert.throws(function () { parseAndEval('3.2.2') }, SyntaxError)
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