ComfyUI_frontend/src/nodes/strings.js

//basic nodes
(function(global) {
    var LiteGraph = global.LiteGraph;

    function toString(a) {
		if(a && a.constructor === Object)
		{
			try
			{
				return JSON.stringify(a);
			}
			catch (err)
			{
				return String(a);
			}
		}
        return String(a);
    }

    LiteGraph.wrapFunctionAsNode("string/toString", toString, [""], "string");

    function compare(a, b) {
        return a == b;
    }

    LiteGraph.wrapFunctionAsNode(
        "string/compare",
        compare,
        ["string", "string"],
        "boolean"
    );

    function concatenate(a, b) {
        if (a === undefined) {
            return b;
        }
        if (b === undefined) {
            return a;
        }
        return a + b;
    }

    LiteGraph.wrapFunctionAsNode(
        "string/concatenate",
        concatenate,
        ["string", "string"],
        "string"
    );

    function contains(a, b) {
        if (a === undefined || b === undefined) {
            return false;
        }
        return a.indexOf(b) != -1;
    }

    LiteGraph.wrapFunctionAsNode(
        "string/contains",
        contains,
        ["string", "string"],
        "boolean"
    );

    function toUpperCase(a) {
        if (a != null && a.constructor === String) {
            return a.toUpperCase();
        }
        return a;
    }

    LiteGraph.wrapFunctionAsNode(
        "string/toUpperCase",
        toUpperCase,
        ["string"],
        "string"
    );

    function split(str, separator) {
		if(separator == null)
			separator = this.properties.separator;
        if (str == null )
	        return [];
		if( str.constructor === String )
			return str.split(separator || " ");
		else if( str.constructor === Array )
		{
			var r = [];
			for(var i = 0; i < str.length; ++i){
                if (typeof str[i] == "string")
				    r[i] = str[i].split(separator || " ");
            }
			return r;
		}
        return null;
    }

    LiteGraph.wrapFunctionAsNode(
        "string/split",
        split,
        ["string,array", "string"],
        "array",
		{ separator: "," }
    );

    function toFixed(a) {
        if (a != null && a.constructor === Number) {
            return a.toFixed(this.properties.precision);
        }
        return a;
    }

    LiteGraph.wrapFunctionAsNode(
        "string/toFixed",
        toFixed,
        ["number"],
        "string",
        { precision: 0 }
    );


    function StringToTable() {
        this.addInput("", "string");
        this.addOutput("table", "table");
        this.addOutput("rows", "number");
        this.addProperty("value", "");
        this.addProperty("separator", ",");
		this._table = null;
    }

    StringToTable.title = "toTable";
    StringToTable.desc = "Splits a string to table";

    StringToTable.prototype.onExecute = function() {
        var input = this.getInputData(0);
		if(!input)
			return;
		var separator = this.properties.separator || ",";
		if(input != this._str || separator != this._last_separator )
		{
			this._last_separator = separator;
			this._str = input;
			this._table = input.split("\n").map(function(a){ return a.trim().split(separator)});
		}
        this.setOutputData(0, this._table );
        this.setOutputData(1, this._table ? this._table.length : 0 );
    };

    LiteGraph.registerNodeType("string/toTable", StringToTable);

})(this);