Language activity converts C++ to C

[LunarWatcher]

I work with C++, and don't work with C. The language activity section yet drops the ++ and replaces it with nothing, yielding an incorrect language. This is specifically limited to language activity -- most used languages works fine

[lowlighter]

Thanks for reporting this!
It's probably related to the regex parsing github/linguist output:

metrics/source/plugins/habits/index.mjs

Line 103 in cd83e85

.split("\n").map(line => line.match(/(?<value>[\d.]+)%\s+(?<language>\w+)/)?.groups).filter(line => line)

It only use \w class to detect languages, which does not include special characters like + so that's probably why it's dropping them

I'll take a look next week 👍

[lowlighter]

Should be fixed in #117