cpp: Enable codegen

[mpkorstanje]

🤔 What's changed?

• Adds cpp to the root make file so the parser is updated with make generate
• Regenerate cpp parser

⚡️ What's your motivation?

Investigate #412
Resolve #333 for cpp.

🏷️ What kind of change is this?

• 🐛 Bug fix (non-breaking change which fixes a defect)

📋 Checklist:

• I agree to respect and uphold the Cucumber Community Code of Conduct

[mpkorstanje]

Looking at #413 the acceptance tests pass except for #400.

[musicinmybrain]

Looking at #413 the acceptance tests pass except for #400.

I haven’t figured out how to fix this, but I prepared #415 along the way.

[musicinmybrain]

The (first) failing acceptance test in this case is:

diff --unified ../testdata/good/prefixed-keywords.feature.tokens acceptance/testdata/good/prefixed-keywords.feature.tokens
--- ../testdata/good/prefixed-keywords.feature.tokens   2025-06-17 07:49:09.772177553 -0400
+++ acceptance/testdata/good/prefixed-keywords.feature.tokens   2025-06-17 11:32:48.135765735 -0400
@@ -7,6 +7,6 @@
 (7:5)StepLine:(Context)Sipoze ke /there is agent J/
 (8:5)StepLine:(Conjunction)Ak /there is agent K/
 (9:5)StepLine:(Action)Le /I erase agent K's memory/
-(10:5)StepLine:(Outcome)Le sa a /there should be agent J/
+(10:5)StepLine:(Action)Le /sa a there should be agent J/
 (11:5)StepLine:(Conjunction)Men /there should not be agent K/
 EOF

which is exactly the example in #414.

[mpkorstanje]

Thanks for the quick PR. We can fix this in small steps. I'll check/merge tomorrow.

To further fix things, in general terms, in the implementation there should be a match_{somethint step related} method that checks which of the keywords matches. It does this by checking the given/when/then keywords separately. These keywords should be combined and sorted on length before this is done.

The solutions to #400 might provide some inspiration.

But I'm on my phone right now so that's all I can usefully contribute for today.

[musicinmybrain]

I’ve managed to fix the last acceptance test failure in #416.