Tab Escaping in Sublime Text 3

tab_escaping.json

[
  { "keys": ["tab"], "command": "move", "args": {"by": "characters", "forward": true}, "context":
     [
        { "key": "setting.auto_match_enabled", "operator": "equal", "operand": true },
        { "key": "has_next_field", "operator": "not_equal", "operand": true },
        { "key": "auto_complete_visible", "operator": "not_equal", "operand": true },
        { "key": "selection_empty", "operator": "equal", "operand": true, "match_all": true },
        { "key": "following_text", "operator": "regex_contains", "operand": "(`|\\)|\\]|\\}|'|\").*", "match_all": true },
        { "key": "preceding_text", "operator": "regex_contains", "operand": "(`|\\(|\\[|\\{|'|\")", "match_all": true }
    ]
  }
]