{
	"$schema": "https://raw.githubusercontent.com/martinring/tmlanguage/master/tmlanguage.json",
	"name": "MeTTa",
	"patterns": [
		{
			"include": "#doctag"
		},
		{
			"include": "#namespace"
		},
		{
			"include": "#variables"
		},
		{
			"include": "#operatorkeywords"
		},
		{
			"include": "#controlkeywords"
		},
		{
			"include": "#comment"
		},
		{
			"include": "#strings"
		},
		{
			"include": "#character"
		},
		{
			"include": "#number"
		}
	],
	"repository": {
		"keywords": {
			"patterns": [{
				"name": "no.color.metta",
				"match": "[a-zA-Z_][a-zA-Z_\\-*0-9]*!?"
			}]
		},
		"operatorkeywords": {
			"patterns": [{
				"name": "keyword.operator.metta",
				"match": "=="
			}]
		},
		"controlkeywords": {
			"patterns": [{
				"name": "keyword.control.metta",
				"match": ":|=|\\->|!"
			}]
		},
		"doctag" : {
			"patterns": [
				{
					"name": "keyword.other.metta",
					"match": "\\x40[a-zA-Z_][a-zA-Z_\\-*0-9]*!?"
				}
			]
		},
		"namespace" : {
			"patterns": [
				{
					"name": "variable.language.metta",
					"match": "\\x26[a-zA-Z_][a-zA-Z_\\-*0-9]*!?"
				}
			]
		},
		"variables" : {
			"patterns": [
				{
					"name": "variable.other.metta",
					"match": "\\x24[a-zA-Z_][a-zA-Z_\\-*0-9]*!?"
				}
			]
		},
		"comment" : {
			"patterns": [
				{
					"name": "comment.line.metta",
					"begin": ";",
					"end": "$"
				}
			]
		},
		"strings": {
			"name": "string.quoted.double.metta",
			"begin": "\"",
			"end": "\"",
			"patterns": [
				{
					"name": "constant.character.escape.metta",
					"match": "\\\\."
				}
			]
		},
		"character":{
			"begin": "'",
			"end": "'",
			"name": "string.quoted.single.metta",
			"patterns": [
				{
					"match": "\\\\.",
					"name": "constant.character.escape.metta"
				}
			]
		},
		"number": {
			"patterns": [
				{
					"name": "constant.numeric.metta",
					"begin": ";",
					"match": "-?[0-9]+(.[0-9]+)?"
				}
			]
		}
	},
	"scopeName": "source.metta"
}