需要更好的正则表达式来匹配文本

Question

My requirement is to find wrong usage patterns of a method callee, for that I want to have a regular expression which can find the invalid usecases.

Ex: I have a method, it will accepts a parameter with predefined formats.

Possible predefined input arguments:

1. abc
2. bbc
3. abc bbc
4. der
5. der abc

Function: function method(param){}

Valid function callee use-cases:

1. object.method("abc"); or object.method('abc');
2. object.method("bbc"); or object.method('bbc');
3. object.method("abc bbc"); or object.method('abc bbc');
4. object.method("der"); or object.method('der');
5. object.method("der abc"); or object.method('der abc');

Invalid use-cases:

1. object.method("abcd");
2. object.method("test");
3. object.method("abc ");
4. object.method("abc bbc ");

In order to identify the invalid use cases I have come with the below regular expression: Ref: [RegEx] ( https://regex101.com/r/fR5eF4/3 )

Is it possible to optimize the above regular expression further (or) any other expression with better performance.

Answer 1

If you have a closed list of valid inputs I would just check that the input coincides with one of them, for example, just by searching an array of options.

If that is not the case you should offer us a better explanation of the required input format.

Answer 2

i've came with

.(method)\s*\((?![\"\'](abc|bbc|abc bbc|der|der abc)[\"\'])

so i've just moved ' and " out of this (x|x|x) group, to make things clearer
also -- you can add /g modifier for testing and put all your data to textbox.
here's link: https://regex101.com/r/oT4nN3/1