Ignore code inside Python f-strings

[5TuX]

Currently, Spell Right does not provide a way to ignore only the code inside {} in Python f-strings while still spell-checking the surrounding text. This is an issue because variables and function calls inside {} often trigger spelling errors.

In this example, we expect len(data) not to be underlined, but "potatos" should be:

my_string = f"There are {len(data)} potatos in the dataset"
my_dict = {
    "potatos": 1,
    "tomatoes": 2,
}

Spell Right currently does not handle this as desired: "potatos" is properly underlined, but the len function call is also underlined when it should not.

A workaround using ignoreRegExpsByClass can ignore entire f-strings, but it does not allow selectively ignoring only the interpolated expressions inside {}, so ignoring entire f-strings results in missed typos in the surrounding text.

"spellright.ignoreRegExpsByClass": {
    "python": [
        "/f[\"'].*?{(.*)}.*[\"']/g",
    ]
}

With this workaround, "len" is not underlined, but the first "potatos" error is missed as it is part of the f-sting which is entirely ignored.

Feature Request:

• Add an option to ignore only the code inside {} in f-strings (e.g., function calls, variables) while still spell-checking the surrounding text.
• Or, improve regex handling so that capturing parentheses can be used in ignoreRegExpsByClass to ignore specific parts of f-strings without skipping the entire f-string content.

Would this be possible to implement? Thank you for the great extension !

[5TuX]

This issue has also been reported in #298