Bug 442012

Created attachment 141294 [details]
With *, syntax

SUMMARY

Since Python 3, one can enforce the use of keyword arguments in method definitions. This ensures that downstream code is proof against possible future changes to the order of positional arguments. All arguments from a `*,` onwards need to be preceeded with explicit keywords (cf. https://www.vegardstikbakke.com/python-keyword-only/).

However, this syntax seems to partly break KDevelop's Python syntax highlighting, with default arguments following the `*,` not being recognised/highlighted anymore.

Example:
```python3
import os

class Backend:
    AUTO = None

def run(
        info,
        tempdir,
        *,
        backend = Backend.AUTO,
        n_processes = os.cpu_count()+1,
        n_chunks = 1,
        scaling = 1,
        cache_name = 'cache',
        verbose = True,
    ):
    pass
```

STEPS TO REPRODUCE
1. Paste a Python code using the keyword-only enforcing `*,` into KDevelop, for instance the above example.
2. Save it as $SOME_FILENAME.py for syntax highlighting to get active.
3. Remove the `*,` and see how syntax highlighting changes

OBSERVED RESULT
Default arguments after `*,` are not highlighted. Without `*,` they are.

EXPECTED RESULT
Default arguments should always be highlighted correctly, regardless of whether there is a `*,` or not.

SOFTWARE/OS VERSIONS
Operating System: KDE neon 5.22
KDE Plasma Version: 5.22.5
KDE Frameworks Version: 5.85.0
Qt Version: 5.15.3
Kernel Version: 5.11.0-27-generic (64-bit)
Graphics Platform: Wayland

ADDITIONAL INFORMATION
Maybe this is rather a problem with KDevelop than with the syntax highlighting framework. If you think so, feel free to move the issue.