Set up your editor for Kronos development with syntax highlighting and LSP support

Editor Setup

Full IDE support with syntax highlighting, error checking, and autocomplete.

Quick Install

./scripts/install_extension.sh

Restart your editor (VSCode/Cursor/Windsurf).

Features

Syntax highlighting
Real-time error detection
Keyword autocomplete
Auto-indentation & bracket matching
Code folding

Troubleshooting

No syntax highlighting?

Check file extension is .kr
Check bottom-right shows "Kronos"
Try: Cmd+Shift+P → "Change Language Mode" → "Kronos"

LSP not working?

make clean && make lsp
./scripts/install_extension.sh
# Restart editor

View LSP logs:

View → Output → "Kronos Language Server"

Other Editors

Vim/Neovim

Create ~/.vim/syntax/kronos.vim:

syn keyword kronosKeyword set let to as if for while function return print
syn keyword kronosBoolean true false
syn keyword kronosConstant Pi null
syn region kronosString start='"' end='"'
syn match kronosNumber '\<\d\+\(\.\d\+\)\?\>'
syn match kronosComment '#.*$'

hi def link kronosKeyword Keyword
hi def link kronosBoolean Boolean
hi def link kronosConstant Constant
hi def link kronosString String
hi def link kronosNumber Number
hi def link kronosComment Comment

Add to ~/.vim/ftdetect/kronos.vim:

au BufRead,BufNewFile *.kr set filetype=kronos

Sublime Text

Create Kronos.sublime-syntax:

%YAML 1.2
---
name: Kronos
file_extensions: [kr]
scope: source.kronos

contexts:
  main:
    - match: "#.*$"
      scope: comment.line.kronos
    - match: '\b(set|let|if|for|while|function|return|print)\b'
      scope: keyword.control.kronos
    - match: '\b(true|false|null|Pi)\b'
      scope: constant.language.kronos
    - match: '"'
      push: string
    - match: '\b\d+(\.\d+)?\b'
      scope: constant.numeric.kronos
  string:
    - meta_scope: string.quoted.double.kronos
    - match: '"'
      pop: true

LSP Architecture

Editor → Extension → kronos-lsp → Parser → Diagnostics

The LSP server (src/lsp/lsp_server.c) provides real-time syntax checking and autocomplete by parsing your code as you type.

Editor Setup

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