rust/editors/code/rust.tmGrammar.json

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                {
                    "comment": "comma",
                    "name": "punctuation.comma.rust",
                    "match": ","
                },
                {
                    "comment": "curly braces",
                    "name": "punctuation.brackets.curly.rust",
                    "match": "[{}]"
                },
                {
                    "comment": "parentheses, round brackets",
                    "name": "punctuation.brackets.round.rust",
                    "match": "[()]"
                },
                {
                    "comment": "semicolon",
                    "name": "punctuation.semi.rust",
                    "match": ";"
                },
                {
                    "comment": "square brackets",
                    "name": "punctuation.brackets.square.rust",
                    "match": "[\\[\\]]"
                },
                {
                    "comment": "angle brackets",
                    "name": "punctuation.brackets.angle.rust",
                    "match": "(?<!=)[<>]"
                }
            ]
        },
        "strings": {
            "patterns": [
                {
                    "comment": "double-quoted strings and byte strings",
                    "name": "string.quoted.double.rust",
                    "begin": "(b?)(\")",
                    "beginCaptures": {
                        "1": {
                            "name": "string.quoted.byte.raw.rust"
                        },
                        "2": {
                            "name": "punctuation.definition.string.rust"
                        }
                    },
                    "end": "\"",
                    "endCaptures": {
                        "0": {
                            "name": "punctuation.definition.string.rust"
                        }
                    },
                    "patterns": [
                        {
                            "include": "#escapes"
                        },
                        {
                            "include": "#interpolations"
                        }
                    ]
                },
                {
                    "comment": "double-quoted raw strings and raw byte strings (no hash)",
                    "name": "string.quoted.double.rust",
                    "begin": "(b?r)(\")",
                    "beginCaptures": {
                        "1": {
                            "name": "string.quoted.byte.raw.rust"
                        },
                        "2": {
                            "name": "punctuation.definition.string.rust"
                        }
                    },
                    "end": "\"",
                    "endCaptures": {
                        "0": {
                            "name": "punctuation.definition.string.rust"
                        }
                    }
                },
                {
                    "comment": "double-quoted raw strings and raw byte strings (with hash)",
                    "name": "string.quoted.double.rust",
                    "begin": "(b?r)(#+)(\")",
                    "beginCaptures": {
                        "1": {
                            "name": "string.quoted.byte.raw.rust"
                        },
                        "2": {
                            "name": "punctuation.definition.string.raw.rust"
                        },
                        "3": {
                            "name": "punctuation.definition.string.rust"
                        }
                    },
                    "end": "(\")(#+)",
                    "endCaptures": {
                        "1": {
                            "name": "punctuation.definition.string.rust"
                        },
                        "2": {
                            "name": "punctuation.definition.string.raw.rust"
                        }
                    }
                },
                {
                    "comment": "characters and bytes",
                    "name": "string.quoted.single.char.rust",
                    "begin": "(b)?(')",
                    "beginCaptures": {
                        "1": {
                            "name": "string.quoted.byte.raw.rust"
                        },
                        "2": {
                            "name": "punctuation.definition.char.rust"
                        }
                    },
                    "end": "'",
                    "endCaptures": {
                        "0": {
                            "name": "punctuation.definition.char.rust"
                        }
                    },
                    "patterns": [
                        {
                            "include": "#escapes"
                        }
                    ]
                }
            ]
        },
        "lvariables": {
            "patterns": [
                {
                    "comment": "self",
                    "name": "variable.language.self.rust",
                    "match": "\\b[Ss]elf\\b"
                },
                {
                    "comment": "super",
                    "name": "variable.language.super.rust",
                    "match": "\\bsuper\\b"
                }
            ]
        },
        "variables": {
            "patterns": [
                {
                    "comment": "variables",
                    "name": "variable.other.rust",
                    "match": "\\b(?<!\\.)[a-z0-9_]+\\b"
                }
            ]
        }
    }
}