Source .cfg files syntax highlighting for Sublime Text 3

source-cfg.sublime-syntax

%YAML 1.2
---
# See http://www.sublimetext.com/docs/3/syntax.html
name: Source game config
file_extensions:
  - cfg
scope: source.source-config
contexts:
  main:
    - match: '\s*\/\/'
      push: comment_line
    - match: '[\s;]*(\S+)\s+"?([A-Za-z0-9.\-_ ]+)"?'
      captures:
        1: variable.source-config
        2: string.unquoted.source-config
  comment_line:
    - meta_scope: comment.line.source-config
    - match: '$'
      pop: true