Dynamic String “Variables”

[magic furnace]

I have a very dynamic settings config of sorts. It can reference other config values within strings, and even other random non-static variables.

Example of a config value using this: “abcdefg [config.othervalue]”

If config.othervalue was “text”, then this config value would become: “abcdefg text”

However, as I mentioned, some of the “variables” won’t be static. They might reference context that isn’t always accessible.

To insert these config values, I was originally planning to just use str.replaceAll, by just looping all the variables I would need to insert. However, since some stuff isn’t static, I’d have to do this on runtime. Likely every time the config value in question is used. Obviously this is a potential performance leak.

Is there any better way to insert the necessary variables? Some way to check what variables are used and only inserting those?

[flint tide]

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[shell lily]

do you really need to use regex for it

first thing i think is that string replacements would probably be better than regex replacements in this case

not exactly good, but better than regex

using this would probably be better? im not sure of your usecase exactly tbh
https://docs.oracle.com/en/java/javase/19/docs/api/java.base/java/util/regex/Matcher.html#replaceAll(java.util.function.Function)

a single regex to find the replacement syntax, then you can just capture out the "variable" name and retrieve it from, say, a map to replace in

would only need a single iteration over the string (albeit a regex iteration)