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What does this extension do?

This will get you the bleeding-edge syntax highlighting for C++. Which means your theme will be able to color your code better. This used to be a fix, but then VS Code starting using it as the official source for C and C++ highlighting.

NOTE: The default VS Code theme does not color much. Switch to the Dark+ theme (installed by default) or use a theme like one of the following to benefit from the changes:

• XD Theme
• Noctis
• Kary Pro Colors
• Material Theme
• One Monokai Theme
• Winteriscoming
• Popping and Locking
• Syntax Highlight Theme
• Default Theme Enhanced

How do I use the extension?

Just install the VS Code extension and the changes will automatically be applied to all relevant files.
Link: https://marketplace.visualstudio.com/items?itemName=jeff-hykin.better-cpp-syntax

Comparison (Material Theme)

How do I use the grammar? (as an upstream for my non-vs code editor)

1. Watch the the "Major Changes" thread here to know when I change licenses, the codebase structure, or just major highlighting changes.
2. I support non-VS Code usecases. E.g. yes, you are welcome to open issues like this one that don't affect VS Code.

What is different from atom/language-c?

It fixes:

• The issue of single quotes inside #error and #warning being highlighted when then shouldn't be
• The issue of initialization functions only highlighting the first parenthesis
• The bug that treats the 'and' and 'or' operator as functions (instead of operators) when they are followed by ()'s
• Old C99 function highlighting that broke the standard function highlighting
• The failure of highlighting for the semicolon after namespaces
• The missing operator overloading symbols
• The failure to tag operator overloading functions as functions
• The failure to tag implicit operator overrides
• The marking of some %'s as invalid inside of strings atom/language-c#289
• The highlighting of namespaces with ::'s atom/language-c#260
• The issue of the C++ syntax depending on (and getting screwed up by) the C syntax
• multiple inheritance atom/language-c#245
• And many many more issues (#318, #309, #270, #246, etc)

It adds:

• Parameter highlighting
• Highlighting of embedded assembly code (if you have an assembly syntax installed)
• Function-pointer highlighting
• Lambda highlighting
• C++14 literal support (100'000ms)
• Template definition syntax highlighting (including C++ 2020 syntax)
• Better object identification
• Improved scope resolution :: syntax
• Highlighting of templated function calls aFunction<int>(arguments)
• Additional specificity for many existing tags
• Many other features

Like this extension?

• You'll probably like this as well: My "Better Syntax" Megapack

Contributing

If you'd like to help improve the syntax, take a look at main/main.rb. And make sure to take a look at documentation/CONTRIBUTING.md to get a better idea of how the code works.

Planned future fixes/features:

• Add tagging for type-casting statements
• Add tagging for custom types words
• Better support for dereferenced/pointer tagging
• Full C++ 2020 support (module imports, arrow return types, etc.)
• Improving template types

What if I see a highlighting bug?

Let me know! Post an issue on https://github.com/jeff-hykin/better-cpp-syntax I love regular expressions, and PR's are always welcome.

Did you write all of this yourself?

The original JSON was taken from https://github.com/atom/language-c
@matter123 wrote every massive pull request, from simple bugfixes up to the entire textmate testing suite
@j-cortial has fixed many lingering bugs
The #error fix was taken from fnadeau's pull request here: atom/language-c#251
Thank you @matter123, @j-cortial, and @fnadeau!
The rest of the ruby is authored by @jeff-hykin