PR to add a vim syntax file to support syntax highlighting for .carbon files. Since the Carbon language specification is still in progress, a single syntax file is easier to maintain and adapt to design changes in Carbon. After the language syntax has matured and stabilized, advanced tooling such as Treesitter and Language Servers can take over the syntax highlighting in neovim.
### Highlighting Support
- comments and preprocessors (RUN, CHECK, etc)
- string and numeric literals
- primitive type names, classes, aliases
- control flow constructs
- identifier names
- package and library declarations
- most keywords mentioned in `docs/design/README.md`
### With a Dark Colorscheme:
This image is longer than I thought, so I'm not posting what it looks like in a light colorscheme, but it should look fine as long as vim highlight-groups are properly defined.
Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
TextMate is the go-to definition language for syntax highlighting for editors lack dedicated language support for a given programming language. This patch contains a very minimal, yet functional TextMate bundle definition for Carbon.
This allows Carbon users to import the TextMate bundle into their editors to get basic syntax highlighting for Carbon code until we have a more solid specification for the language (that's when the fun with dedicated plugins/extensions begins!).
**Support**
- String literals with escape codes (currently using C highlighting rules)
- Numeric literals in decimal, hexadecimal and binary (lacks _ separator support though)
- Single and multi-line comments
- Highlighting of all? (let me know if some are missing) keywords in the language
Here is an image of the highlighting in action in IntelliJ Dracula mode
Following a short discussion on Discord about where to locate developer tools, I suggest we collect developer utils inside a `/utils` directory at the repository root.
The idea behind this directory is taken from LLVM's utils directories in the various LLVM subprojects which host tooling such as Vim and VSCode extensions, utility scripts, and other useful bits for developers developing or using LLVM.
This patch moves the highlightjs code into said utils directory.
Let me know if there's anything else that's missing 😄
cc @jonmeow
x2wandJon Ross-Perkins
Mats Larsen
ooxi
