{
    "$schema": "https://raw.githubusercontent.com/martinring/tmlanguage/master/tmlanguage.json",
    "name": "Aster",
    "scopeName": "source.aster",
    "fileTypes": ["ast"],
    "patterns": [
        { "include": "#comments" },
        { "include": "#strings" },
        { "include": "#numbers" },
        { "include": "#function-declaration" },
        { "include": "#keywords" },
        { "include": "#constants" },
        { "include": "#builtins" },
        { "include": "#operators" },
        { "include": "#punctuation" },
        { "include": "#identifiers" }
    ],
    "repository": {
        "comments": {
            "patterns": [
                {
                    "name": "comment.block.aster",
                    "begin": "/\\*",
                    "end": "\\*/",
                    "patterns": [
                        {
                            "name": "comment.block.aster",
                            "match": "."
                        }
                    ]
                },
                {
                    "name": "comment.line.double-slash.aster",
                    "match": "//.*$"
                }
            ]
        },
        "strings": {
            "patterns": [
                {
                    "name": "string.quoted.double.aster",
                    "begin": "\"",
                    "end": "\"",
                    "patterns": [
                        {
                            "name": "constant.character.escape.aster",
                            "match": "\\\\[ntr\"\\\\]"
                        }
                    ]
                },
                {
                    "name": "string.quoted.single.aster",
                    "begin": "'",
                    "end": "'",
                    "patterns": [
                        {
                            "name": "constant.character.escape.aster",
                            "match": "\\\\[ntr'\\\\]"
                        }
                    ]
                }
            ]
        },
        "numbers": {
            "patterns": [
                {
                    "name": "constant.numeric.float.aster",
                    "match": "\\b\\d+\\.\\d+\\b"
                },
                {
                    "name": "constant.numeric.integer.aster",
                    "match": "\\b\\d+\\b"
                }
            ]
        },
        "function-declaration": {
            "match": "\\b(fn)\\s+([a-zA-Z_][a-zA-Z0-9_]*)",
            "captures": {
                "1": { "name": "keyword.control.aster" },
                "2": { "name": "entity.name.function.aster" }
            }
        },
        "keywords": {
            "patterns": [
                {
                    "name": "keyword.control.aster",
                    "match": "\\b(let|const|fn|if|else|while|for|in|break|continue|return)\\b"
                }
            ]
        },
        "constants": {
            "match": "\\b(true|false|nil)\\b",
            "name": "constant.language.aster"
        },
        "builtins": {
            "match": "\\b(print|input|clock|len|typeof|push|pop|split|trim|substring|replace|contains|upper|lower|starts_with|ends_with|require)\\b",
            "name": "support.function.builtin.aster"
        },
        "operators": {
            "patterns": [
                {
                    "name": "keyword.operator.assignment.compound.aster",
                    "match": "\\+=|-=|\\*=|/=|%="
                },
                {
                    "name": "keyword.operator.logical.aster",
                    "match": "&&|\\|\\||!"
                },
                {
                    "name": "keyword.operator.comparison.aster",
                    "match": "==|!=|<=|>="
                },
                {
                    "name": "keyword.operator.assignment.aster",
                    "match": "="
                },
                {
                    "name": "keyword.operator.arithmetic.aster",
                    "match": "[+\\-*/%]"
                },
                {
                    "name": "keyword.operator.comparison.aster",
                    "match": "<|>"
                }
            ]
        },
        "punctuation": {
            "patterns": [
                {
                    "name": "punctuation.section.scope.aster",
                    "match": "[{}]"
                },
                {
                    "name": "punctuation.section.brackets.aster",
                    "match": "[\\[\\]]"
                },
                {
                    "name": "punctuation.section.parens.aster",
                    "match": "[\\(\\)]"
                },
                {
                    "name": "punctuation.separator.aster",
                    "match": "[,;:\\.]"
                },
                {
                    "name": "keyword.operator.ternary.question.aster",
                    "match": "\\?"
                }
            ]
        },
        "identifiers": {
            "match": "[a-zA-Z_][a-zA-Z0-9_]*",
            "name": "variable.other.aster"
        }
    }
}