Evaluating 'help(not)' throws SyntaxError

描述

// Works fine
console.log(math.evaluate('help(and)'));

// "SyntaxError: Value expected (char 9)"
console.log(math.evaluate('help(not)'));

贡献者指南

技术栈

javascriptnodejs

领域

backend

议题类型

bug

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2

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clear

前置要求

JavaScriptbasic understanding of mathjs parser

新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。

70

研究方向

The bug is that `help(not)` causes a SyntaxError while `help(and)` works. The issue is likely in the parsing logic for the `help` function, specifically how it handles unary operators like 'not'. Look at the parser source code (likely in `src/parse.js`) to see how `and` is handled versus `not`. The fix may involve adding 'not' to the set of recognized symbols for the help function or adjusting the expression parsing to not treat 'not' as a standalone value. Check the comments on the issue for any additional context or suggested approaches.