Convert Regex value to its string contain

[nethriis]

Convert Regex value to its string contain

[seppestas]

This issue tracker is for regexr, a tool to test regexes. This is a general question regarding programming related to regexes. This question might be better suited for one of the stack exchange sites like Stack overflow. Be sure to mention what programming language you want to use.

I suggest closing this issue because it is off-topic.

In an attempt to be of help anyway:

Short answer is no. What you are looking for is verry specific and regexes are generic. Your example is a lot simpler than most regexes, imagine what it would happen for more generic regex like `.*`. It's set of matched result is infinitely large because the string can be infinitely long!

For your example, assuming you are only interested in ASCII and not e.g Unicode, a quick and dirty for loop could do that for you:

E.g (in JS):

const re = /[A-Z]/;
result = '';
for (test = 'A'; test.charCodeAt(0) < 'Z'.charCodeAt(0); test = String.fromCharCode(test.charCodeAt(0) + 1)) {
	match = test.match(re);
	if (match) {
		console.log(match);
		result += match;
	}
}
console.log(result);

This works because each character has it's own numerical code: https://en.wikipedia.org/wiki/ASCII#Printable_characters.