import { sanitizeUrl } from "@braintree/sanitize-url";
import { select, curveBasis, curveBasisClosed, curveBasisOpen, curveBumpX, curveBumpY, curveBundle, curveCardinalClosed, curveCardinalOpen, curveCardinal, curveCatmullRomClosed, curveCatmullRomOpen, curveCatmullRom, curveLinear, curveLinearClosed, curveMonotoneX, curveMonotoneY, curveNatural, curveStep, curveStepAfter, curveStepBefore } from "d3";
import { l as log$1, a as addDirective, s as setLogLevel$1, g as getConfig$1, b as sanitizeText$1, c as assignWithDepth, d as common$1, e as configKeys } from "./config-b494b248.js";
import { s as setupGraphViewbox$1 } from "./setupGraphViewbox-8fe6c61e.js";
import { c as commonDb } from "./commonDb-25b8ddf3.js";
import memoize from "lodash-es/memoize.js";
/*! js-yaml 4.1.0 https://github.com/nodeca/js-yaml @license MIT */
function isNothing(subject) {
  return typeof subject === "undefined" || subject === null;
}
function isObject(subject) {
  return typeof subject === "object" && subject !== null;
}
function toArray(sequence) {
  if (Array.isArray(sequence))
    return sequence;
  else if (isNothing(sequence))
    return [];
  return [sequence];
}
function extend(target, source) {
  var index, length, key, sourceKeys;
  if (source) {
    sourceKeys = Object.keys(source);
    for (index = 0, length = sourceKeys.length; index < length; index += 1) {
      key = sourceKeys[index];
      target[key] = source[key];
    }
  }
  return target;
}
function repeat(string, count) {
  var result = "", cycle;
  for (cycle = 0; cycle < count; cycle += 1) {
    result += string;
  }
  return result;
}
function isNegativeZero(number) {
  return number === 0 && Number.NEGATIVE_INFINITY === 1 / number;
}
var isNothing_1 = isNothing;
var isObject_1 = isObject;
var toArray_1 = toArray;
var repeat_1 = repeat;
var isNegativeZero_1 = isNegativeZero;
var extend_1 = extend;
var common = {
  isNothing: isNothing_1,
  isObject: isObject_1,
  toArray: toArray_1,
  repeat: repeat_1,
  isNegativeZero: isNegativeZero_1,
  extend: extend_1
};
function formatError(exception2, compact) {
  var where = "", message = exception2.reason || "(unknown reason)";
  if (!exception2.mark)
    return message;
  if (exception2.mark.name) {
    where += 'in "' + exception2.mark.name + '" ';
  }
  where += "(" + (exception2.mark.line + 1) + ":" + (exception2.mark.column + 1) + ")";
  if (!compact && exception2.mark.snippet) {
    where += "\n\n" + exception2.mark.snippet;
  }
  return message + " " + where;
}
function YAMLException$1(reason, mark) {
  Error.call(this);
  this.name = "YAMLException";
  this.reason = reason;
  this.mark = mark;
  this.message = formatError(this, false);
  if (Error.captureStackTrace) {
    Error.captureStackTrace(this, this.constructor);
  } else {
    this.stack = new Error().stack || "";
  }
}
YAMLException$1.prototype = Object.create(Error.prototype);
YAMLException$1.prototype.constructor = YAMLException$1;
YAMLException$1.prototype.toString = function toString(compact) {
  return this.name + ": " + formatError(this, compact);
};
var exception = YAMLException$1;
function getLine(buffer, lineStart, lineEnd, position, maxLineLength) {
  var head = "";
  var tail = "";
  var maxHalfLength = Math.floor(maxLineLength / 2) - 1;
  if (position - lineStart > maxHalfLength) {
    head = " ... ";
    lineStart = position - maxHalfLength + head.length;
  }
  if (lineEnd - position > maxHalfLength) {
    tail = " ...";
    lineEnd = position + maxHalfLength - tail.length;
  }
  return {
    str: head + buffer.slice(lineStart, lineEnd).replace(/\t/g, "→") + tail,
    pos: position - lineStart + head.length
    // relative position
  };
}
function padStart(string, max) {
  return common.repeat(" ", max - string.length) + string;
}
function makeSnippet(mark, options) {
  options = Object.create(options || null);
  if (!mark.buffer)
    return null;
  if (!options.maxLength)
    options.maxLength = 79;
  if (typeof options.indent !== "number")
    options.indent = 1;
  if (typeof options.linesBefore !== "number")
    options.linesBefore = 3;
  if (typeof options.linesAfter !== "number")
    options.linesAfter = 2;
  var re = /\r?\n|\r|\0/g;
  var lineStarts = [0];
  var lineEnds = [];
  var match;
  var foundLineNo = -1;
  while (match = re.exec(mark.buffer)) {
    lineEnds.push(match.index);
    lineStarts.push(match.index + match[0].length);
    if (mark.position <= match.index && foundLineNo < 0) {
      foundLineNo = lineStarts.length - 2;
    }
  }
  if (foundLineNo < 0)
    foundLineNo = lineStarts.length - 1;
  var result = "", i, line;
  var lineNoLength = Math.min(mark.line + options.linesAfter, lineEnds.length).toString().length;
  var maxLineLength = options.maxLength - (options.indent + lineNoLength + 3);
  for (i = 1; i <= options.linesBefore; i++) {
    if (foundLineNo - i < 0)
      break;
    line = getLine(
      mark.buffer,
      lineStarts[foundLineNo - i],
      lineEnds[foundLineNo - i],
      mark.position - (lineStarts[foundLineNo] - lineStarts[foundLineNo - i]),
      maxLineLength
    );
    result = common.repeat(" ", options.indent) + padStart((mark.line - i + 1).toString(), lineNoLength) + " | " + line.str + "\n" + result;
  }
  line = getLine(mark.buffer, lineStarts[foundLineNo], lineEnds[foundLineNo], mark.position, maxLineLength);
  result += common.repeat(" ", options.indent) + padStart((mark.line + 1).toString(), lineNoLength) + " | " + line.str + "\n";
  result += common.repeat("-", options.indent + lineNoLength + 3 + line.pos) + "^\n";
  for (i = 1; i <= options.linesAfter; i++) {
    if (foundLineNo + i >= lineEnds.length)
      break;
    line = getLine(
      mark.buffer,
      lineStarts[foundLineNo + i],
      lineEnds[foundLineNo + i],
      mark.position - (lineStarts[foundLineNo] - lineStarts[foundLineNo + i]),
      maxLineLength
    );
    result += common.repeat(" ", options.indent) + padStart((mark.line + i + 1).toString(), lineNoLength) + " | " + line.str + "\n";
  }
  return result.replace(/\n$/, "");
}
var snippet = makeSnippet;
var TYPE_CONSTRUCTOR_OPTIONS = [
  "kind",
  "multi",
  "resolve",
  "construct",
  "instanceOf",
  "predicate",
  "represent",
  "representName",
  "defaultStyle",
  "styleAliases"
];
var YAML_NODE_KINDS = [
  "scalar",
  "sequence",
  "mapping"
];
function compileStyleAliases(map2) {
  var result = {};
  if (map2 !== null) {
    Object.keys(map2).forEach(function(style) {
      map2[style].forEach(function(alias) {
        result[String(alias)] = style;
      });
    });
  }
  return result;
}
function Type$1(tag, options) {
  options = options || {};
  Object.keys(options).forEach(function(name) {
    if (TYPE_CONSTRUCTOR_OPTIONS.indexOf(name) === -1) {
      throw new exception('Unknown option "' + name + '" is met in definition of "' + tag + '" YAML type.');
    }
  });
  this.options = options;
  this.tag = tag;
  this.kind = options["kind"] || null;
  this.resolve = options["resolve"] || function() {
    return true;
  };
  this.construct = options["construct"] || function(data) {
    return data;
  };
  this.instanceOf = options["instanceOf"] || null;
  this.predicate = options["predicate"] || null;
  this.represent = options["represent"] || null;
  this.representName = options["representName"] || null;
  this.defaultStyle = options["defaultStyle"] || null;
  this.multi = options["multi"] || false;
  this.styleAliases = compileStyleAliases(options["styleAliases"] || null);
  if (YAML_NODE_KINDS.indexOf(this.kind) === -1) {
    throw new exception('Unknown kind "' + this.kind + '" is specified for "' + tag + '" YAML type.');
  }
}
var type = Type$1;
function compileList(schema2, name) {
  var result = [];
  schema2[name].forEach(function(currentType) {
    var newIndex = result.length;
    result.forEach(function(previousType, previousIndex) {
      if (previousType.tag === currentType.tag && previousType.kind === currentType.kind && previousType.multi === currentType.multi) {
        newIndex = previousIndex;
      }
    });
    result[newIndex] = currentType;
  });
  return result;
}
function compileMap() {
  var result = {
    scalar: {},
    sequence: {},
    mapping: {},
    fallback: {},
    multi: {
      scalar: [],
      sequence: [],
      mapping: [],
      fallback: []
    }
  }, index, length;
  function collectType(type2) {
    if (type2.multi) {
      result.multi[type2.kind].push(type2);
      result.multi["fallback"].push(type2);
    } else {
      result[type2.kind][type2.tag] = result["fallback"][type2.tag] = type2;
    }
  }
  for (index = 0, length = arguments.length; index < length; index += 1) {
    arguments[index].forEach(collectType);
  }
  return result;
}
function Schema$1(definition) {
  return this.extend(definition);
}
Schema$1.prototype.extend = function extend2(definition) {
  var implicit = [];
  var explicit = [];
  if (definition instanceof type) {
    explicit.push(definition);
  } else if (Array.isArray(definition)) {
    explicit = explicit.concat(definition);
  } else if (definition && (Array.isArray(definition.implicit) || Array.isArray(definition.explicit))) {
    if (definition.implicit)
      implicit = implicit.concat(definition.implicit);
    if (definition.explicit)
      explicit = explicit.concat(definition.explicit);
  } else {
    throw new exception("Schema.extend argument should be a Type, [ Type ], or a schema definition ({ implicit: [...], explicit: [...] })");
  }
  implicit.forEach(function(type$1) {
    if (!(type$1 instanceof type)) {
      throw new exception("Specified list of YAML types (or a single Type object) contains a non-Type object.");
    }
    if (type$1.loadKind && type$1.loadKind !== "scalar") {
      throw new exception("There is a non-scalar type in the implicit list of a schema. Implicit resolving of such types is not supported.");
    }
    if (type$1.multi) {
      throw new exception("There is a multi type in the implicit list of a schema. Multi tags can only be listed as explicit.");
    }
  });
  explicit.forEach(function(type$1) {
    if (!(type$1 instanceof type)) {
      throw new exception("Specified list of YAML types (or a single Type object) contains a non-Type object.");
    }
  });
  var result = Object.create(Schema$1.prototype);
  result.implicit = (this.implicit || []).concat(implicit);
  result.explicit = (this.explicit || []).concat(explicit);
  result.compiledImplicit = compileList(result, "implicit");
  result.compiledExplicit = compileList(result, "explicit");
  result.compiledTypeMap = compileMap(result.compiledImplicit, result.compiledExplicit);
  return result;
};
var schema = Schema$1;
var str = new type("tag:yaml.org,2002:str", {
  kind: "scalar",
  construct: function(data) {
    return data !== null ? data : "";
  }
});
var seq = new type("tag:yaml.org,2002:seq", {
  kind: "sequence",
  construct: function(data) {
    return data !== null ? data : [];
  }
});
var map = new type("tag:yaml.org,2002:map", {
  kind: "mapping",
  construct: function(data) {
    return data !== null ? data : {};
  }
});
var failsafe = new schema({
  explicit: [
    str,
    seq,
    map
  ]
});
function resolveYamlNull(data) {
  if (data === null)
    return true;
  var max = data.length;
  return max === 1 && data === "~" || max === 4 && (data === "null" || data === "Null" || data === "NULL");
}
function constructYamlNull() {
  return null;
}
function isNull(object) {
  return object === null;
}
var _null = new type("tag:yaml.org,2002:null", {
  kind: "scalar",
  resolve: resolveYamlNull,
  construct: constructYamlNull,
  predicate: isNull,
  represent: {
    canonical: function() {
      return "~";
    },
    lowercase: function() {
      return "null";
    },
    uppercase: function() {
      return "NULL";
    },
    camelcase: function() {
      return "Null";
    },
    empty: function() {
      return "";
    }
  },
  defaultStyle: "lowercase"
});
function resolveYamlBoolean(data) {
  if (data === null)
    return false;
  var max = data.length;
  return max === 4 && (data === "true" || data === "True" || data === "TRUE") || max === 5 && (data === "false" || data === "False" || data === "FALSE");
}
function constructYamlBoolean(data) {
  return data === "true" || data === "True" || data === "TRUE";
}
function isBoolean(object) {
  return Object.prototype.toString.call(object) === "[object Boolean]";
}
var bool = new type("tag:yaml.org,2002:bool", {
  kind: "scalar",
  resolve: resolveYamlBoolean,
  construct: constructYamlBoolean,
  predicate: isBoolean,
  represent: {
    lowercase: function(object) {
      return object ? "true" : "false";
    },
    uppercase: function(object) {
      return object ? "TRUE" : "FALSE";
    },
    camelcase: function(object) {
      return object ? "True" : "False";
    }
  },
  defaultStyle: "lowercase"
});
function isHexCode(c) {
  return 48 <= c && c <= 57 || 65 <= c && c <= 70 || 97 <= c && c <= 102;
}
function isOctCode(c) {
  return 48 <= c && c <= 55;
}
function isDecCode(c) {
  return 48 <= c && c <= 57;
}
function resolveYamlInteger(data) {
  if (data === null)
    return false;
  var max = data.length, index = 0, hasDigits = false, ch;
  if (!max)
    return false;
  ch = data[index];
  if (ch === "-" || ch === "+") {
    ch = data[++index];
  }
  if (ch === "0") {
    if (index + 1 === max)
      return true;
    ch = data[++index];
    if (ch === "b") {
      index++;
      for (; index < max; index++) {
        ch = data[index];
        if (ch === "_")
          continue;
        if (ch !== "0" && ch !== "1")
          return false;
        hasDigits = true;
      }
      return hasDigits && ch !== "_";
    }
    if (ch === "x") {
      index++;
      for (; index < max; index++) {
        ch = data[index];
        if (ch === "_")
          continue;
        if (!isHexCode(data.charCodeAt(index)))
          return false;
        hasDigits = true;
      }
      return hasDigits && ch !== "_";
    }
    if (ch === "o") {
      index++;
      for (; index < max; index++) {
        ch = data[index];
        if (ch === "_")
          continue;
        if (!isOctCode(data.charCodeAt(index)))
          return false;
        hasDigits = true;
      }
      return hasDigits && ch !== "_";
    }
  }
  if (ch === "_")
    return false;
  for (; index < max; index++) {
    ch = data[index];
    if (ch === "_")
      continue;
    if (!isDecCode(data.charCodeAt(index))) {
      return false;
    }
    hasDigits = true;
  }
  if (!hasDigits || ch === "_")
    return false;
  return true;
}
function constructYamlInteger(data) {
  var value = data, sign = 1, ch;
  if (value.indexOf("_") !== -1) {
    value = value.replace(/_/g, "");
  }
  ch = value[0];
  if (ch === "-" || ch === "+") {
    if (ch === "-")
      sign = -1;
    value = value.slice(1);
    ch = value[0];
  }
  if (value === "0")
    return 0;
  if (ch === "0") {
    if (value[1] === "b")
      return sign * parseInt(value.slice(2), 2);
    if (value[1] === "x")
      return sign * parseInt(value.slice(2), 16);
    if (value[1] === "o")
      return sign * parseInt(value.slice(2), 8);
  }
  return sign * parseInt(value, 10);
}
function isInteger(object) {
  return Object.prototype.toString.call(object) === "[object Number]" && (object % 1 === 0 && !common.isNegativeZero(object));
}
var int = new type("tag:yaml.org,2002:int", {
  kind: "scalar",
  resolve: resolveYamlInteger,
  construct: constructYamlInteger,
  predicate: isInteger,
  represent: {
    binary: function(obj) {
      return obj >= 0 ? "0b" + obj.toString(2) : "-0b" + obj.toString(2).slice(1);
    },
    octal: function(obj) {
      return obj >= 0 ? "0o" + obj.toString(8) : "-0o" + obj.toString(8).slice(1);
    },
    decimal: function(obj) {
      return obj.toString(10);
    },
    /* eslint-disable max-len */
    hexadecimal: function(obj) {
      return obj >= 0 ? "0x" + obj.toString(16).toUpperCase() : "-0x" + obj.toString(16).toUpperCase().slice(1);
    }
  },
  defaultStyle: "decimal",
  styleAliases: {
    binary: [2, "bin"],
    octal: [8, "oct"],
    decimal: [10, "dec"],
    hexadecimal: [16, "hex"]
  }
});
var YAML_FLOAT_PATTERN = new RegExp(
  // 2.5e4, 2.5 and integers
  "^(?:[-+]?(?:[0-9][0-9_]*)(?:\\.[0-9_]*)?(?:[eE][-+]?[0-9]+)?|\\.[0-9_]+(?:[eE][-+]?[0-9]+)?|[-+]?\\.(?:inf|Inf|INF)|\\.(?:nan|NaN|NAN))$"
);
function resolveYamlFloat(data) {
  if (data === null)
    return false;
  if (!YAML_FLOAT_PATTERN.test(data) || // Quick hack to not allow integers end with `_`
  // Probably should update regexp & check speed
  data[data.length - 1] === "_") {
    return false;
  }
  return true;
}
function constructYamlFloat(data) {
  var value, sign;
  value = data.replace(/_/g, "").toLowerCase();
  sign = value[0] === "-" ? -1 : 1;
  if ("+-".indexOf(value[0]) >= 0) {
    value = value.slice(1);
  }
  if (value === ".inf") {
    return sign === 1 ? Number.POSITIVE_INFINITY : Number.NEGATIVE_INFINITY;
  } else if (value === ".nan") {
    return NaN;
  }
  return sign * parseFloat(value, 10);
}
var SCIENTIFIC_WITHOUT_DOT = /^[-+]?[0-9]+e/;
function representYamlFloat(object, style) {
  var res;
  if (isNaN(object)) {
    switch (style) {
      case "lowercase":
        return ".nan";
      case "uppercase":
        return ".NAN";
      case "camelcase":
        return ".NaN";
    }
  } else if (Number.POSITIVE_INFINITY === object) {
    switch (style) {
      case "lowercase":
        return ".inf";
      case "uppercase":
        return ".INF";
      case "camelcase":
        return ".Inf";
    }
  } else if (Number.NEGATIVE_INFINITY === object) {
    switch (style) {
      case "lowercase":
        return "-.inf";
      case "uppercase":
        return "-.INF";
      case "camelcase":
        return "-.Inf";
    }
  } else if (common.isNegativeZero(object)) {
    return "-0.0";
  }
  res = object.toString(10);
  return SCIENTIFIC_WITHOUT_DOT.test(res) ? res.replace("e", ".e") : res;
}
function isFloat(object) {
  return Object.prototype.toString.call(object) === "[object Number]" && (object % 1 !== 0 || common.isNegativeZero(object));
}
var float = new type("tag:yaml.org,2002:float", {
  kind: "scalar",
  resolve: resolveYamlFloat,
  construct: constructYamlFloat,
  predicate: isFloat,
  represent: representYamlFloat,
  defaultStyle: "lowercase"
});
var json = failsafe.extend({
  implicit: [
    _null,
    bool,
    int,
    float
  ]
});
var core = json;
var YAML_DATE_REGEXP = new RegExp(
  "^([0-9][0-9][0-9][0-9])-([0-9][0-9])-([0-9][0-9])$"
);
var YAML_TIMESTAMP_REGEXP = new RegExp(
  "^([0-9][0-9][0-9][0-9])-([0-9][0-9]?)-([0-9][0-9]?)(?:[Tt]|[ \\t]+)([0-9][0-9]?):([0-9][0-9]):([0-9][0-9])(?:\\.([0-9]*))?(?:[ \\t]*(Z|([-+])([0-9][0-9]?)(?::([0-9][0-9]))?))?$"
);
function resolveYamlTimestamp(data) {
  if (data === null)
    return false;
  if (YAML_DATE_REGEXP.exec(data) !== null)
    return true;
  if (YAML_TIMESTAMP_REGEXP.exec(data) !== null)
    return true;
  return false;
}
function constructYamlTimestamp(data) {
  var match, year, month, day, hour, minute, second, fraction = 0, delta = null, tz_hour, tz_minute, date;
  match = YAML_DATE_REGEXP.exec(data);
  if (match === null)
    match = YAML_TIMESTAMP_REGEXP.exec(data);
  if (match === null)
    throw new Error("Date resolve error");
  year = +match[1];
  month = +match[2] - 1;
  day = +match[3];
  if (!match[4]) {
    return new Date(Date.UTC(year, month, day));
  }
  hour = +match[4];
  minute = +match[5];
  second = +match[6];
  if (match[7]) {
    fraction = match[7].slice(0, 3);
    while (fraction.length < 3) {
      fraction += "0";
    }
    fraction = +fraction;
  }
  if (match[9]) {
    tz_hour = +match[10];
    tz_minute = +(match[11] || 0);
    delta = (tz_hour * 60 + tz_minute) * 6e4;
    if (match[9] === "-")
      delta = -delta;
  }
  date = new Date(Date.UTC(year, month, day, hour, minute, second, fraction));
  if (delta)
    date.setTime(date.getTime() - delta);
  return date;
}
function representYamlTimestamp(object) {
  return object.toISOString();
}
var timestamp = new type("tag:yaml.org,2002:timestamp", {
  kind: "scalar",
  resolve: resolveYamlTimestamp,
  construct: constructYamlTimestamp,
  instanceOf: Date,
  represent: representYamlTimestamp
});
function resolveYamlMerge(data) {
  return data === "<<" || data === null;
}
var merge = new type("tag:yaml.org,2002:merge", {
  kind: "scalar",
  resolve: resolveYamlMerge
});
var BASE64_MAP = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=\n\r";
function resolveYamlBinary(data) {
  if (data === null)
    return false;
  var code, idx, bitlen = 0, max = data.length, map2 = BASE64_MAP;
  for (idx = 0; idx < max; idx++) {
    code = map2.indexOf(data.charAt(idx));
    if (code > 64)
      continue;
    if (code < 0)
      return false;
    bitlen += 6;
  }
  return bitlen % 8 === 0;
}
function constructYamlBinary(data) {
  var idx, tailbits, input = data.replace(/[\r\n=]/g, ""), max = input.length, map2 = BASE64_MAP, bits = 0, result = [];
  for (idx = 0; idx < max; idx++) {
    if (idx % 4 === 0 && idx) {
      result.push(bits >> 16 & 255);
      result.push(bits >> 8 & 255);
      result.push(bits & 255);
    }
    bits = bits << 6 | map2.indexOf(input.charAt(idx));
  }
  tailbits = max % 4 * 6;
  if (tailbits === 0) {
    result.push(bits >> 16 & 255);
    result.push(bits >> 8 & 255);
    result.push(bits & 255);
  } else if (tailbits === 18) {
    result.push(bits >> 10 & 255);
    result.push(bits >> 2 & 255);
  } else if (tailbits === 12) {
    result.push(bits >> 4 & 255);
  }
  return new Uint8Array(result);
}
function representYamlBinary(object) {
  var result = "", bits = 0, idx, tail, max = object.length, map2 = BASE64_MAP;
  for (idx = 0; idx < max; idx++) {
    if (idx % 3 === 0 && idx) {
      result += map2[bits >> 18 & 63];
      result += map2[bits >> 12 & 63];
      result += map2[bits >> 6 & 63];
      result += map2[bits & 63];
    }
    bits = (bits << 8) + object[idx];
  }
  tail = max % 3;
  if (tail === 0) {
    result += map2[bits >> 18 & 63];
    result += map2[bits >> 12 & 63];
    result += map2[bits >> 6 & 63];
    result += map2[bits & 63];
  } else if (tail === 2) {
    result += map2[bits >> 10 & 63];
    result += map2[bits >> 4 & 63];
    result += map2[bits << 2 & 63];
    result += map2[64];
  } else if (tail === 1) {
    result += map2[bits >> 2 & 63];
    result += map2[bits << 4 & 63];
    result += map2[64];
    result += map2[64];
  }
  return result;
}
function isBinary(obj) {
  return Object.prototype.toString.call(obj) === "[object Uint8Array]";
}
var binary = new type("tag:yaml.org,2002:binary", {
  kind: "scalar",
  resolve: resolveYamlBinary,
  construct: constructYamlBinary,
  predicate: isBinary,
  represent: representYamlBinary
});
var _hasOwnProperty$3 = Object.prototype.hasOwnProperty;
var _toString$2 = Object.prototype.toString;
function resolveYamlOmap(data) {
  if (data === null)
    return true;
  var objectKeys = [], index, length, pair, pairKey, pairHasKey, object = data;
  for (index = 0, length = object.length; index < length; index += 1) {
    pair = object[index];
    pairHasKey = false;
    if (_toString$2.call(pair) !== "[object Object]")
      return false;
    for (pairKey in pair) {
      if (_hasOwnProperty$3.call(pair, pairKey)) {
        if (!pairHasKey)
          pairHasKey = true;
        else
          return false;
      }
    }
    if (!pairHasKey)
      return false;
    if (objectKeys.indexOf(pairKey) === -1)
      objectKeys.push(pairKey);
    else
      return false;
  }
  return true;
}
function constructYamlOmap(data) {
  return data !== null ? data : [];
}
var omap = new type("tag:yaml.org,2002:omap", {
  kind: "sequence",
  resolve: resolveYamlOmap,
  construct: constructYamlOmap
});
var _toString$1 = Object.prototype.toString;
function resolveYamlPairs(data) {
  if (data === null)
    return true;
  var index, length, pair, keys, result, object = data;
  result = new Array(object.length);
  for (index = 0, length = object.length; index < length; index += 1) {
    pair = object[index];
    if (_toString$1.call(pair) !== "[object Object]")
      return false;
    keys = Object.keys(pair);
    if (keys.length !== 1)
      return false;
    result[index] = [keys[0], pair[keys[0]]];
  }
  return true;
}
function constructYamlPairs(data) {
  if (data === null)
    return [];
  var index, length, pair, keys, result, object = data;
  result = new Array(object.length);
  for (index = 0, length = object.length; index < length; index += 1) {
    pair = object[index];
    keys = Object.keys(pair);
    result[index] = [keys[0], pair[keys[0]]];
  }
  return result;
}
var pairs = new type("tag:yaml.org,2002:pairs", {
  kind: "sequence",
  resolve: resolveYamlPairs,
  construct: constructYamlPairs
});
var _hasOwnProperty$2 = Object.prototype.hasOwnProperty;
function resolveYamlSet(data) {
  if (data === null)
    return true;
  var key, object = data;
  for (key in object) {
    if (_hasOwnProperty$2.call(object, key)) {
      if (object[key] !== null)
        return false;
    }
  }
  return true;
}
function constructYamlSet(data) {
  return data !== null ? data : {};
}
var set = new type("tag:yaml.org,2002:set", {
  kind: "mapping",
  resolve: resolveYamlSet,
  construct: constructYamlSet
});
var _default = core.extend({
  implicit: [
    timestamp,
    merge
  ],
  explicit: [
    binary,
    omap,
    pairs,
    set
  ]
});
var _hasOwnProperty$1 = Object.prototype.hasOwnProperty;
var CONTEXT_FLOW_IN = 1;
var CONTEXT_FLOW_OUT = 2;
var CONTEXT_BLOCK_IN = 3;
var CONTEXT_BLOCK_OUT = 4;
var CHOMPING_CLIP = 1;
var CHOMPING_STRIP = 2;
var CHOMPING_KEEP = 3;
var PATTERN_NON_PRINTABLE = /[\x00-\x08\x0B\x0C\x0E-\x1F\x7F-\x84\x86-\x9F\uFFFE\uFFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
var PATTERN_NON_ASCII_LINE_BREAKS = /[\x85\u2028\u2029]/;
var PATTERN_FLOW_INDICATORS = /[,\[\]\{\}]/;
var PATTERN_TAG_HANDLE = /^(?:!|!!|![a-z\-]+!)$/i;
var PATTERN_TAG_URI = /^(?:!|[^,\[\]\{\}])(?:%[0-9a-f]{2}|[0-9a-z\-#;\/\?:@&=\+\$,_\.!~\*'\(\)\[\]])*$/i;
function _class(obj) {
  return Object.prototype.toString.call(obj);
}
function is_EOL(c) {
  return c === 10 || c === 13;
}
function is_WHITE_SPACE(c) {
  return c === 9 || c === 32;
}
function is_WS_OR_EOL(c) {
  return c === 9 || c === 32 || c === 10 || c === 13;
}
function is_FLOW_INDICATOR(c) {
  return c === 44 || c === 91 || c === 93 || c === 123 || c === 125;
}
function fromHexCode(c) {
  var lc;
  if (48 <= c && c <= 57) {
    return c - 48;
  }
  lc = c | 32;
  if (97 <= lc && lc <= 102) {
    return lc - 97 + 10;
  }
  return -1;
}
function escapedHexLen(c) {
  if (c === 120) {
    return 2;
  }
  if (c === 117) {
    return 4;
  }
  if (c === 85) {
    return 8;
  }
  return 0;
}
function fromDecimalCode(c) {
  if (48 <= c && c <= 57) {
    return c - 48;
  }
  return -1;
}
function simpleEscapeSequence(c) {
  return c === 48 ? "\0" : c === 97 ? "\x07" : c === 98 ? "\b" : c === 116 ? "	" : c === 9 ? "	" : c === 110 ? "\n" : c === 118 ? "\v" : c === 102 ? "\f" : c === 114 ? "\r" : c === 101 ? "\x1B" : c === 32 ? " " : c === 34 ? '"' : c === 47 ? "/" : c === 92 ? "\\" : c === 78 ? "" : c === 95 ? " " : c === 76 ? "\u2028" : c === 80 ? "\u2029" : "";
}
function charFromCodepoint(c) {
  if (c <= 65535) {
    return String.fromCharCode(c);
  }
  return String.fromCharCode(
    (c - 65536 >> 10) + 55296,
    (c - 65536 & 1023) + 56320
  );
}
var simpleEscapeCheck = new Array(256);
var simpleEscapeMap = new Array(256);
for (var i = 0; i < 256; i++) {
  simpleEscapeCheck[i] = simpleEscapeSequence(i) ? 1 : 0;
  simpleEscapeMap[i] = simpleEscapeSequence(i);
}
function State$1(input, options) {
  this.input = input;
  this.filename = options["filename"] || null;
  this.schema = options["schema"] || _default;
  this.onWarning = options["onWarning"] || null;
  this.legacy = options["legacy"] || false;
  this.json = options["json"] || false;
  this.listener = options["listener"] || null;
  this.implicitTypes = this.schema.compiledImplicit;
  this.typeMap = this.schema.compiledTypeMap;
  this.length = input.length;
  this.position = 0;
  this.line = 0;
  this.lineStart = 0;
  this.lineIndent = 0;
  this.firstTabInLine = -1;
  this.documents = [];
}
function generateError(state, message) {
  var mark = {
    name: state.filename,
    buffer: state.input.slice(0, -1),
    // omit trailing \0
    position: state.position,
    line: state.line,
    column: state.position - state.lineStart
  };
  mark.snippet = snippet(mark);
  return new exception(message, mark);
}
function throwError(state, message) {
  throw generateError(state, message);
}
function throwWarning(state, message) {
  if (state.onWarning) {
    state.onWarning.call(null, generateError(state, message));
  }
}
var directiveHandlers = {
  YAML: function handleYamlDirective(state, name, args) {
    var match, major, minor;
    if (state.version !== null) {
      throwError(state, "duplication of %YAML directive");
    }
    if (args.length !== 1) {
      throwError(state, "YAML directive accepts exactly one argument");
    }
    match = /^([0-9]+)\.([0-9]+)$/.exec(args[0]);
    if (match === null) {
      throwError(state, "ill-formed argument of the YAML directive");
    }
    major = parseInt(match[1], 10);
    minor = parseInt(match[2], 10);
    if (major !== 1) {
      throwError(state, "unacceptable YAML version of the document");
    }
    state.version = args[0];
    state.checkLineBreaks = minor < 2;
    if (minor !== 1 && minor !== 2) {
      throwWarning(state, "unsupported YAML version of the document");
    }
  },
  TAG: function handleTagDirective(state, name, args) {
    var handle, prefix;
    if (args.length !== 2) {
      throwError(state, "TAG directive accepts exactly two arguments");
    }
    handle = args[0];
    prefix = args[1];
    if (!PATTERN_TAG_HANDLE.test(handle)) {
      throwError(state, "ill-formed tag handle (first argument) of the TAG directive");
    }
    if (_hasOwnProperty$1.call(state.tagMap, handle)) {
      throwError(state, 'there is a previously declared suffix for "' + handle + '" tag handle');
    }
    if (!PATTERN_TAG_URI.test(prefix)) {
      throwError(state, "ill-formed tag prefix (second argument) of the TAG directive");
    }
    try {
      prefix = decodeURIComponent(prefix);
    } catch (err) {
      throwError(state, "tag prefix is malformed: " + prefix);
    }
    state.tagMap[handle] = prefix;
  }
};
function captureSegment(state, start, end, checkJson) {
  var _position, _length, _character, _result;
  if (start < end) {
    _result = state.input.slice(start, end);
    if (checkJson) {
      for (_position = 0, _length = _result.length; _position < _length; _position += 1) {
        _character = _result.charCodeAt(_position);
        if (!(_character === 9 || 32 <= _character && _character <= 1114111)) {
          throwError(state, "expected valid JSON character");
        }
      }
    } else if (PATTERN_NON_PRINTABLE.test(_result)) {
      throwError(state, "the stream contains non-printable characters");
    }
    state.result += _result;
  }
}
function mergeMappings(state, destination, source, overridableKeys) {
  var sourceKeys, key, index, quantity;
  if (!common.isObject(source)) {
    throwError(state, "cannot merge mappings; the provided source object is unacceptable");
  }
  sourceKeys = Object.keys(source);
  for (index = 0, quantity = sourceKeys.length; index < quantity; index += 1) {
    key = sourceKeys[index];
    if (!_hasOwnProperty$1.call(destination, key)) {
      destination[key] = source[key];
      overridableKeys[key] = true;
    }
  }
}
function storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, startLine, startLineStart, startPos) {
  var index, quantity;
  if (Array.isArray(keyNode)) {
    keyNode = Array.prototype.slice.call(keyNode);
    for (index = 0, quantity = keyNode.length; index < quantity; index += 1) {
      if (Array.isArray(keyNode[index])) {
        throwError(state, "nested arrays are not supported inside keys");
      }
      if (typeof keyNode === "object" && _class(keyNode[index]) === "[object Object]") {
        keyNode[index] = "[object Object]";
      }
    }
  }
  if (typeof keyNode === "object" && _class(keyNode) === "[object Object]") {
    keyNode = "[object Object]";
  }
  keyNode = String(keyNode);
  if (_result === null) {
    _result = {};
  }
  if (keyTag === "tag:yaml.org,2002:merge") {
    if (Array.isArray(valueNode)) {
      for (index = 0, quantity = valueNode.length; index < quantity; index += 1) {
        mergeMappings(state, _result, valueNode[index], overridableKeys);
      }
    } else {
      mergeMappings(state, _result, valueNode, overridableKeys);
    }
  } else {
    if (!state.json && !_hasOwnProperty$1.call(overridableKeys, keyNode) && _hasOwnProperty$1.call(_result, keyNode)) {
      state.line = startLine || state.line;
      state.lineStart = startLineStart || state.lineStart;
      state.position = startPos || state.position;
      throwError(state, "duplicated mapping key");
    }
    if (keyNode === "__proto__") {
      Object.defineProperty(_result, keyNode, {
        configurable: true,
        enumerable: true,
        writable: true,
        value: valueNode
      });
    } else {
      _result[keyNode] = valueNode;
    }
    delete overridableKeys[keyNode];
  }
  return _result;
}
function readLineBreak(state) {
  var ch;
  ch = state.input.charCodeAt(state.position);
  if (ch === 10) {
    state.position++;
  } else if (ch === 13) {
    state.position++;
    if (state.input.charCodeAt(state.position) === 10) {
      state.position++;
    }
  } else {
    throwError(state, "a line break is expected");
  }
  state.line += 1;
  state.lineStart = state.position;
  state.firstTabInLine = -1;
}
function skipSeparationSpace(state, allowComments, checkIndent) {
  var lineBreaks = 0, ch = state.input.charCodeAt(state.position);
  while (ch !== 0) {
    while (is_WHITE_SPACE(ch)) {
      if (ch === 9 && state.firstTabInLine === -1) {
        state.firstTabInLine = state.position;
      }
      ch = state.input.charCodeAt(++state.position);
    }
    if (allowComments && ch === 35) {
      do {
        ch = state.input.charCodeAt(++state.position);
      } while (ch !== 10 && ch !== 13 && ch !== 0);
    }
    if (is_EOL(ch)) {
      readLineBreak(state);
      ch = state.input.charCodeAt(state.position);
      lineBreaks++;
      state.lineIndent = 0;
      while (ch === 32) {
        state.lineIndent++;
        ch = state.input.charCodeAt(++state.position);
      }
    } else {
      break;
    }
  }
  if (checkIndent !== -1 && lineBreaks !== 0 && state.lineIndent < checkIndent) {
    throwWarning(state, "deficient indentation");
  }
  return lineBreaks;
}
function testDocumentSeparator(state) {
  var _position = state.position, ch;
  ch = state.input.charCodeAt(_position);
  if ((ch === 45 || ch === 46) && ch === state.input.charCodeAt(_position + 1) && ch === state.input.charCodeAt(_position + 2)) {
    _position += 3;
    ch = state.input.charCodeAt(_position);
    if (ch === 0 || is_WS_OR_EOL(ch)) {
      return true;
    }
  }
  return false;
}
function writeFoldedLines(state, count) {
  if (count === 1) {
    state.result += " ";
  } else if (count > 1) {
    state.result += common.repeat("\n", count - 1);
  }
}
function readPlainScalar(state, nodeIndent, withinFlowCollection) {
  var preceding, following, captureStart, captureEnd, hasPendingContent, _line, _lineStart, _lineIndent, _kind = state.kind, _result = state.result, ch;
  ch = state.input.charCodeAt(state.position);
  if (is_WS_OR_EOL(ch) || is_FLOW_INDICATOR(ch) || ch === 35 || ch === 38 || ch === 42 || ch === 33 || ch === 124 || ch === 62 || ch === 39 || ch === 34 || ch === 37 || ch === 64 || ch === 96) {
    return false;
  }
  if (ch === 63 || ch === 45) {
    following = state.input.charCodeAt(state.position + 1);
    if (is_WS_OR_EOL(following) || withinFlowCollection && is_FLOW_INDICATOR(following)) {
      return false;
    }
  }
  state.kind = "scalar";
  state.result = "";
  captureStart = captureEnd = state.position;
  hasPendingContent = false;
  while (ch !== 0) {
    if (ch === 58) {
      following = state.input.charCodeAt(state.position + 1);
      if (is_WS_OR_EOL(following) || withinFlowCollection && is_FLOW_INDICATOR(following)) {
        break;
      }
    } else if (ch === 35) {
      preceding = state.input.charCodeAt(state.position - 1);
      if (is_WS_OR_EOL(preceding)) {
        break;
      }
    } else if (state.position === state.lineStart && testDocumentSeparator(state) || withinFlowCollection && is_FLOW_INDICATOR(ch)) {
      break;
    } else if (is_EOL(ch)) {
      _line = state.line;
      _lineStart = state.lineStart;
      _lineIndent = state.lineIndent;
      skipSeparationSpace(state, false, -1);
      if (state.lineIndent >= nodeIndent) {
        hasPendingContent = true;
        ch = state.input.charCodeAt(state.position);
        continue;
      } else {
        state.position = captureEnd;
        state.line = _line;
        state.lineStart = _lineStart;
        state.lineIndent = _lineIndent;
        break;
      }
    }
    if (hasPendingContent) {
      captureSegment(state, captureStart, captureEnd, false);
      writeFoldedLines(state, state.line - _line);
      captureStart = captureEnd = state.position;
      hasPendingContent = false;
    }
    if (!is_WHITE_SPACE(ch)) {
      captureEnd = state.position + 1;
    }
    ch = state.input.charCodeAt(++state.position);
  }
  captureSegment(state, captureStart, captureEnd, false);
  if (state.result) {
    return true;
  }
  state.kind = _kind;
  state.result = _result;
  return false;
}
function readSingleQuotedScalar(state, nodeIndent) {
  var ch, captureStart, captureEnd;
  ch = state.input.charCodeAt(state.position);
  if (ch !== 39) {
    return false;
  }
  state.kind = "scalar";
  state.result = "";
  state.position++;
  captureStart = captureEnd = state.position;
  while ((ch = state.input.charCodeAt(state.position)) !== 0) {
    if (ch === 39) {
      captureSegment(state, captureStart, state.position, true);
      ch = state.input.charCodeAt(++state.position);
      if (ch === 39) {
        captureStart = state.position;
        state.position++;
        captureEnd = state.position;
      } else {
        return true;
      }
    } else if (is_EOL(ch)) {
      captureSegment(state, captureStart, captureEnd, true);
      writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
      captureStart = captureEnd = state.position;
    } else if (state.position === state.lineStart && testDocumentSeparator(state)) {
      throwError(state, "unexpected end of the document within a single quoted scalar");
    } else {
      state.position++;
      captureEnd = state.position;
    }
  }
  throwError(state, "unexpected end of the stream within a single quoted scalar");
}
function readDoubleQuotedScalar(state, nodeIndent) {
  var captureStart, captureEnd, hexLength, hexResult, tmp, ch;
  ch = state.input.charCodeAt(state.position);
  if (ch !== 34) {
    return false;
  }
  state.kind = "scalar";
  state.result = "";
  state.position++;
  captureStart = captureEnd = state.position;
  while ((ch = state.input.charCodeAt(state.position)) !== 0) {
    if (ch === 34) {
      captureSegment(state, captureStart, state.position, true);
      state.position++;
      return true;
    } else if (ch === 92) {
      captureSegment(state, captureStart, state.position, true);
      ch = state.input.charCodeAt(++state.position);
      if (is_EOL(ch)) {
        skipSeparationSpace(state, false, nodeIndent);
      } else if (ch < 256 && simpleEscapeCheck[ch]) {
        state.result += simpleEscapeMap[ch];
        state.position++;
      } else if ((tmp = escapedHexLen(ch)) > 0) {
        hexLength = tmp;
        hexResult = 0;
        for (; hexLength > 0; hexLength--) {
          ch = state.input.charCodeAt(++state.position);
          if ((tmp = fromHexCode(ch)) >= 0) {
            hexResult = (hexResult << 4) + tmp;
          } else {
            throwError(state, "expected hexadecimal character");
          }
        }
        state.result += charFromCodepoint(hexResult);
        state.position++;
      } else {
        throwError(state, "unknown escape sequence");
      }
      captureStart = captureEnd = state.position;
    } else if (is_EOL(ch)) {
      captureSegment(state, captureStart, captureEnd, true);
      writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
      captureStart = captureEnd = state.position;
    } else if (state.position === state.lineStart && testDocumentSeparator(state)) {
      throwError(state, "unexpected end of the document within a double quoted scalar");
    } else {
      state.position++;
      captureEnd = state.position;
    }
  }
  throwError(state, "unexpected end of the stream within a double quoted scalar");
}
function readFlowCollection(state, nodeIndent) {
  var readNext = true, _line, _lineStart, _pos, _tag = state.tag, _result, _anchor = state.anchor, following, terminator, isPair, isExplicitPair, isMapping, overridableKeys = /* @__PURE__ */ Object.create(null), keyNode, keyTag, valueNode, ch;
  ch = state.input.charCodeAt(state.position);
  if (ch === 91) {
    terminator = 93;
    isMapping = false;
    _result = [];
  } else if (ch === 123) {
    terminator = 125;
    isMapping = true;
    _result = {};
  } else {
    return false;
  }
  if (state.anchor !== null) {
    state.anchorMap[state.anchor] = _result;
  }
  ch = state.input.charCodeAt(++state.position);
  while (ch !== 0) {
    skipSeparationSpace(state, true, nodeIndent);
    ch = state.input.charCodeAt(state.position);
    if (ch === terminator) {
      state.position++;
      state.tag = _tag;
      state.anchor = _anchor;
      state.kind = isMapping ? "mapping" : "sequence";
      state.result = _result;
      return true;
    } else if (!readNext) {
      throwError(state, "missed comma between flow collection entries");
    } else if (ch === 44) {
      throwError(state, "expected the node content, but found ','");
    }
    keyTag = keyNode = valueNode = null;
    isPair = isExplicitPair = false;
    if (ch === 63) {
      following = state.input.charCodeAt(state.position + 1);
      if (is_WS_OR_EOL(following)) {
        isPair = isExplicitPair = true;
        state.position++;
        skipSeparationSpace(state, true, nodeIndent);
      }
    }
    _line = state.line;
    _lineStart = state.lineStart;
    _pos = state.position;
    composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);
    keyTag = state.tag;
    keyNode = state.result;
    skipSeparationSpace(state, true, nodeIndent);
    ch = state.input.charCodeAt(state.position);
    if ((isExplicitPair || state.line === _line) && ch === 58) {
      isPair = true;
      ch = state.input.charCodeAt(++state.position);
      skipSeparationSpace(state, true, nodeIndent);
      composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);
      valueNode = state.result;
    }
    if (isMapping) {
      storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, _line, _lineStart, _pos);
    } else if (isPair) {
      _result.push(storeMappingPair(state, null, overridableKeys, keyTag, keyNode, valueNode, _line, _lineStart, _pos));
    } else {
      _result.push(keyNode);
    }
    skipSeparationSpace(state, true, nodeIndent);
    ch = state.input.charCodeAt(state.position);
    if (ch === 44) {
      readNext = true;
      ch = state.input.charCodeAt(++state.position);
    } else {
      readNext = false;
    }
  }
  throwError(state, "unexpected end of the stream within a flow collection");
}
function readBlockScalar(state, nodeIndent) {
  var captureStart, folding, chomping = CHOMPING_CLIP, didReadContent = false, detectedIndent = false, textIndent = nodeIndent, emptyLines = 0, atMoreIndented = false, tmp, ch;
  ch = state.input.charCodeAt(state.position);
  if (ch === 124) {
    folding = false;
  } else if (ch === 62) {
    folding = true;
  } else {
    return false;
  }
  state.kind = "scalar";
  state.result = "";
  while (ch !== 0) {
    ch = state.input.charCodeAt(++state.position);
    if (ch === 43 || ch === 45) {
      if (CHOMPING_CLIP === chomping) {
        chomping = ch === 43 ? CHOMPING_KEEP : CHOMPING_STRIP;
      } else {
        throwError(state, "repeat of a chomping mode identifier");
      }
    } else if ((tmp = fromDecimalCode(ch)) >= 0) {
      if (tmp === 0) {
        throwError(state, "bad explicit indentation width of a block scalar; it cannot be less than one");
      } else if (!detectedIndent) {
        textIndent = nodeIndent + tmp - 1;
        detectedIndent = true;
      } else {
        throwError(state, "repeat of an indentation width identifier");
      }
    } else {
      break;
    }
  }
  if (is_WHITE_SPACE(ch)) {
    do {
      ch = state.input.charCodeAt(++state.position);
    } while (is_WHITE_SPACE(ch));
    if (ch === 35) {
      do {
        ch = state.input.charCodeAt(++state.position);
      } while (!is_EOL(ch) && ch !== 0);
    }
  }
  while (ch !== 0) {
    readLineBreak(state);
    state.lineIndent = 0;
    ch = state.input.charCodeAt(state.position);
    while ((!detectedIndent || state.lineIndent < textIndent) && ch === 32) {
      state.lineIndent++;
      ch = state.input.charCodeAt(++state.position);
    }
    if (!detectedIndent && state.lineIndent > textIndent) {
      textIndent = state.lineIndent;
    }
    if (is_EOL(ch)) {
      emptyLines++;
      continue;
    }
    if (state.lineIndent < textIndent) {
      if (chomping === CHOMPING_KEEP) {
        state.result += common.repeat("\n", didReadContent ? 1 + emptyLines : emptyLines);
      } else if (chomping === CHOMPING_CLIP) {
        if (didReadContent) {
          state.result += "\n";
        }
      }
      break;
    }
    if (folding) {
      if (is_WHITE_SPACE(ch)) {
        atMoreIndented = true;
        state.result += common.repeat("\n", didReadContent ? 1 + emptyLines : emptyLines);
      } else if (atMoreIndented) {
        atMoreIndented = false;
        state.result += common.repeat("\n", emptyLines + 1);
      } else if (emptyLines === 0) {
        if (didReadContent) {
          state.result += " ";
        }
      } else {
        state.result += common.repeat("\n", emptyLines);
      }
    } else {
      state.result += common.repeat("\n", didReadContent ? 1 + emptyLines : emptyLines);
    }
    didReadContent = true;
    detectedIndent = true;
    emptyLines = 0;
    captureStart = state.position;
    while (!is_EOL(ch) && ch !== 0) {
      ch = state.input.charCodeAt(++state.position);
    }
    captureSegment(state, captureStart, state.position, false);
  }
  return true;
}
function readBlockSequence(state, nodeIndent) {
  var _line, _tag = state.tag, _anchor = state.anchor, _result = [], following, detected = false, ch;
  if (state.firstTabInLine !== -1)
    return false;
  if (state.anchor !== null) {
    state.anchorMap[state.anchor] = _result;
  }
  ch = state.input.charCodeAt(state.position);
  while (ch !== 0) {
    if (state.firstTabInLine !== -1) {
      state.position = state.firstTabInLine;
      throwError(state, "tab characters must not be used in indentation");
    }
    if (ch !== 45) {
      break;
    }
    following = state.input.charCodeAt(state.position + 1);
    if (!is_WS_OR_EOL(following)) {
      break;
    }
    detected = true;
    state.position++;
    if (skipSeparationSpace(state, true, -1)) {
      if (state.lineIndent <= nodeIndent) {
        _result.push(null);
        ch = state.input.charCodeAt(state.position);
        continue;
      }
    }
    _line = state.line;
    composeNode(state, nodeIndent, CONTEXT_BLOCK_IN, false, true);
    _result.push(state.result);
    skipSeparationSpace(state, true, -1);
    ch = state.input.charCodeAt(state.position);
    if ((state.line === _line || state.lineIndent > nodeIndent) && ch !== 0) {
      throwError(state, "bad indentation of a sequence entry");
    } else if (state.lineIndent < nodeIndent) {
      break;
    }
  }
  if (detected) {
    state.tag = _tag;
    state.anchor = _anchor;
    state.kind = "sequence";
    state.result = _result;
    return true;
  }
  return false;
}
function readBlockMapping(state, nodeIndent, flowIndent) {
  var following, allowCompact, _line, _keyLine, _keyLineStart, _keyPos, _tag = state.tag, _anchor = state.anchor, _result = {}, overridableKeys = /* @__PURE__ */ Object.create(null), keyTag = null, keyNode = null, valueNode = null, atExplicitKey = false, detected = false, ch;
  if (state.firstTabInLine !== -1)
    return false;
  if (state.anchor !== null) {
    state.anchorMap[state.anchor] = _result;
  }
  ch = state.input.charCodeAt(state.position);
  while (ch !== 0) {
    if (!atExplicitKey && state.firstTabInLine !== -1) {
      state.position = state.firstTabInLine;
      throwError(state, "tab characters must not be used in indentation");
    }
    following = state.input.charCodeAt(state.position + 1);
    _line = state.line;
    if ((ch === 63 || ch === 58) && is_WS_OR_EOL(following)) {
      if (ch === 63) {
        if (atExplicitKey) {
          storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null, _keyLine, _keyLineStart, _keyPos);
          keyTag = keyNode = valueNode = null;
        }
        detected = true;
        atExplicitKey = true;
        allowCompact = true;
      } else if (atExplicitKey) {
        atExplicitKey = false;
        allowCompact = true;
      } else {
        throwError(state, "incomplete explicit mapping pair; a key node is missed; or followed by a non-tabulated empty line");
      }
      state.position += 1;
      ch = following;
    } else {
      _keyLine = state.line;
      _keyLineStart = state.lineStart;
      _keyPos = state.position;
      if (!composeNode(state, flowIndent, CONTEXT_FLOW_OUT, false, true)) {
        break;
      }
      if (state.line === _line) {
        ch = state.input.charCodeAt(state.position);
        while (is_WHITE_SPACE(ch)) {
          ch = state.input.charCodeAt(++state.position);
        }
        if (ch === 58) {
          ch = state.input.charCodeAt(++state.position);
          if (!is_WS_OR_EOL(ch)) {
            throwError(state, "a whitespace character is expected after the key-value separator within a block mapping");
          }
          if (atExplicitKey) {
            storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null, _keyLine, _keyLineStart, _keyPos);
            keyTag = keyNode = valueNode = null;
          }
          detected = true;
          atExplicitKey = false;
          allowCompact = false;
          keyTag = state.tag;
          keyNode = state.result;
        } else if (detected) {
          throwError(state, "can not read an implicit mapping pair; a colon is missed");
        } else {
          state.tag = _tag;
          state.anchor = _anchor;
          return true;
        }
      } else if (detected) {
        throwError(state, "can not read a block mapping entry; a multiline key may not be an implicit key");
      } else {
        state.tag = _tag;
        state.anchor = _anchor;
        return true;
      }
    }
    if (state.line === _line || state.lineIndent > nodeIndent) {
      if (atExplicitKey) {
        _keyLine = state.line;
        _keyLineStart = state.lineStart;
        _keyPos = state.position;
      }
      if (composeNode(state, nodeIndent, CONTEXT_BLOCK_OUT, true, allowCompact)) {
        if (atExplicitKey) {
          keyNode = state.result;
        } else {
          valueNode = state.result;
        }
      }
      if (!atExplicitKey) {
        storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, _keyLine, _keyLineStart, _keyPos);
        keyTag = keyNode = valueNode = null;
      }
      skipSeparationSpace(state, true, -1);
      ch = state.input.charCodeAt(state.position);
    }
    if ((state.line === _line || state.lineIndent > nodeIndent) && ch !== 0) {
      throwError(state, "bad indentation of a mapping entry");
    } else if (state.lineIndent < nodeIndent) {
      break;
    }
  }
  if (atExplicitKey) {
    storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null, _keyLine, _keyLineStart, _keyPos);
  }
  if (detected) {
    state.tag = _tag;
    state.anchor = _anchor;
    state.kind = "mapping";
    state.result = _result;
  }
  return detected;
}
function readTagProperty(state) {
  var _position, isVerbatim = false, isNamed = false, tagHandle, tagName, ch;
  ch = state.input.charCodeAt(state.position);
  if (ch !== 33)
    return false;
  if (state.tag !== null) {
    throwError(state, "duplication of a tag property");
  }
  ch = state.input.charCodeAt(++state.position);
  if (ch === 60) {
    isVerbatim = true;
    ch = state.input.charCodeAt(++state.position);
  } else if (ch === 33) {
    isNamed = true;
    tagHandle = "!!";
    ch = state.input.charCodeAt(++state.position);
  } else {
    tagHandle = "!";
  }
  _position = state.position;
  if (isVerbatim) {
    do {
      ch = state.input.charCodeAt(++state.position);
    } while (ch !== 0 && ch !== 62);
    if (state.position < state.length) {
      tagName = state.input.slice(_position, state.position);
      ch = state.input.charCodeAt(++state.position);
    } else {
      throwError(state, "unexpected end of the stream within a verbatim tag");
    }
  } else {
    while (ch !== 0 && !is_WS_OR_EOL(ch)) {
      if (ch === 33) {
        if (!isNamed) {
          tagHandle = state.input.slice(_position - 1, state.position + 1);
          if (!PATTERN_TAG_HANDLE.test(tagHandle)) {
            throwError(state, "named tag handle cannot contain such characters");
          }
          isNamed = true;
          _position = state.position + 1;
        } else {
          throwError(state, "tag suffix cannot contain exclamation marks");
        }
      }
      ch = state.input.charCodeAt(++state.position);
    }
    tagName = state.input.slice(_position, state.position);
    if (PATTERN_FLOW_INDICATORS.test(tagName)) {
      throwError(state, "tag suffix cannot contain flow indicator characters");
    }
  }
  if (tagName && !PATTERN_TAG_URI.test(tagName)) {
    throwError(state, "tag name cannot contain such characters: " + tagName);
  }
  try {
    tagName = decodeURIComponent(tagName);
  } catch (err) {
    throwError(state, "tag name is malformed: " + tagName);
  }
  if (isVerbatim) {
    state.tag = tagName;
  } else if (_hasOwnProperty$1.call(state.tagMap, tagHandle)) {
    state.tag = state.tagMap[tagHandle] + tagName;
  } else if (tagHandle === "!") {
    state.tag = "!" + tagName;
  } else if (tagHandle === "!!") {
    state.tag = "tag:yaml.org,2002:" + tagName;
  } else {
    throwError(state, 'undeclared tag handle "' + tagHandle + '"');
  }
  return true;
}
function readAnchorProperty(state) {
  var _position, ch;
  ch = state.input.charCodeAt(state.position);
  if (ch !== 38)
    return false;
  if (state.anchor !== null) {
    throwError(state, "duplication of an anchor property");
  }
  ch = state.input.charCodeAt(++state.position);
  _position = state.position;
  while (ch !== 0 && !is_WS_OR_EOL(ch) && !is_FLOW_INDICATOR(ch)) {
    ch = state.input.charCodeAt(++state.position);
  }
  if (state.position === _position) {
    throwError(state, "name of an anchor node must contain at least one character");
  }
  state.anchor = state.input.slice(_position, state.position);
  return true;
}
function readAlias(state) {
  var _position, alias, ch;
  ch = state.input.charCodeAt(state.position);
  if (ch !== 42)
    return false;
  ch = state.input.charCodeAt(++state.position);
  _position = state.position;
  while (ch !== 0 && !is_WS_OR_EOL(ch) && !is_FLOW_INDICATOR(ch)) {
    ch = state.input.charCodeAt(++state.position);
  }
  if (state.position === _position) {
    throwError(state, "name of an alias node must contain at least one character");
  }
  alias = state.input.slice(_position, state.position);
  if (!_hasOwnProperty$1.call(state.anchorMap, alias)) {
    throwError(state, 'unidentified alias "' + alias + '"');
  }
  state.result = state.anchorMap[alias];
  skipSeparationSpace(state, true, -1);
  return true;
}
function composeNode(state, parentIndent, nodeContext, allowToSeek, allowCompact) {
  var allowBlockStyles, allowBlockScalars, allowBlockCollections, indentStatus = 1, atNewLine = false, hasContent = false, typeIndex, typeQuantity, typeList, type2, flowIndent, blockIndent;
  if (state.listener !== null) {
    state.listener("open", state);
  }
  state.tag = null;
  state.anchor = null;
  state.kind = null;
  state.result = null;
  allowBlockStyles = allowBlockScalars = allowBlockCollections = CONTEXT_BLOCK_OUT === nodeContext || CONTEXT_BLOCK_IN === nodeContext;
  if (allowToSeek) {
    if (skipSeparationSpace(state, true, -1)) {
      atNewLine = true;
      if (state.lineIndent > parentIndent) {
        indentStatus = 1;
      } else if (state.lineIndent === parentIndent) {
        indentStatus = 0;
      } else if (state.lineIndent < parentIndent) {
        indentStatus = -1;
      }
    }
  }
  if (indentStatus === 1) {
    while (readTagProperty(state) || readAnchorProperty(state)) {
      if (skipSeparationSpace(state, true, -1)) {
        atNewLine = true;
        allowBlockCollections = allowBlockStyles;
        if (state.lineIndent > parentIndent) {
          indentStatus = 1;
        } else if (state.lineIndent === parentIndent) {
          indentStatus = 0;
        } else if (state.lineIndent < parentIndent) {
          indentStatus = -1;
        }
      } else {
        allowBlockCollections = false;
      }
    }
  }
  if (allowBlockCollections) {
    allowBlockCollections = atNewLine || allowCompact;
  }
  if (indentStatus === 1 || CONTEXT_BLOCK_OUT === nodeContext) {
    if (CONTEXT_FLOW_IN === nodeContext || CONTEXT_FLOW_OUT === nodeContext) {
      flowIndent = parentIndent;
    } else {
      flowIndent = parentIndent + 1;
    }
    blockIndent = state.position - state.lineStart;
    if (indentStatus === 1) {
      if (allowBlockCollections && (readBlockSequence(state, blockIndent) || readBlockMapping(state, blockIndent, flowIndent)) || readFlowCollection(state, flowIndent)) {
        hasContent = true;
      } else {
        if (allowBlockScalars && readBlockScalar(state, flowIndent) || readSingleQuotedScalar(state, flowIndent) || readDoubleQuotedScalar(state, flowIndent)) {
          hasContent = true;
        } else if (readAlias(state)) {
          hasContent = true;
          if (state.tag !== null || state.anchor !== null) {
            throwError(state, "alias node should not have any properties");
          }
        } else if (readPlainScalar(state, flowIndent, CONTEXT_FLOW_IN === nodeContext)) {
          hasContent = true;
          if (state.tag === null) {
            state.tag = "?";
          }
        }
        if (state.anchor !== null) {
          state.anchorMap[state.anchor] = state.result;
        }
      }
    } else if (indentStatus === 0) {
      hasContent = allowBlockCollections && readBlockSequence(state, blockIndent);
    }
  }
  if (state.tag === null) {
    if (state.anchor !== null) {
      state.anchorMap[state.anchor] = state.result;
    }
  } else if (state.tag === "?") {
    if (state.result !== null && state.kind !== "scalar") {
      throwError(state, 'unacceptable node kind for !<?> tag; it should be "scalar", not "' + state.kind + '"');
    }
    for (typeIndex = 0, typeQuantity = state.implicitTypes.length; typeIndex < typeQuantity; typeIndex += 1) {
      type2 = state.implicitTypes[typeIndex];
      if (type2.resolve(state.result)) {
        state.result = type2.construct(state.result);
        state.tag = type2.tag;
        if (state.anchor !== null) {
          state.anchorMap[state.anchor] = state.result;
        }
        break;
      }
    }
  } else if (state.tag !== "!") {
    if (_hasOwnProperty$1.call(state.typeMap[state.kind || "fallback"], state.tag)) {
      type2 = state.typeMap[state.kind || "fallback"][state.tag];
    } else {
      type2 = null;
      typeList = state.typeMap.multi[state.kind || "fallback"];
      for (typeIndex = 0, typeQuantity = typeList.length; typeIndex < typeQuantity; typeIndex += 1) {
        if (state.tag.slice(0, typeList[typeIndex].tag.length) === typeList[typeIndex].tag) {
          type2 = typeList[typeIndex];
          break;
        }
      }
    }
    if (!type2) {
      throwError(state, "unknown tag !<" + state.tag + ">");
    }
    if (state.result !== null && type2.kind !== state.kind) {
      throwError(state, "unacceptable node kind for !<" + state.tag + '> tag; it should be "' + type2.kind + '", not "' + state.kind + '"');
    }
    if (!type2.resolve(state.result, state.tag)) {
      throwError(state, "cannot resolve a node with !<" + state.tag + "> explicit tag");
    } else {
      state.result = type2.construct(state.result, state.tag);
      if (state.anchor !== null) {
        state.anchorMap[state.anchor] = state.result;
      }
    }
  }
  if (state.listener !== null) {
    state.listener("close", state);
  }
  return state.tag !== null || state.anchor !== null || hasContent;
}
function readDocument(state) {
  var documentStart = state.position, _position, directiveName, directiveArgs, hasDirectives = false, ch;
  state.version = null;
  state.checkLineBreaks = state.legacy;
  state.tagMap = /* @__PURE__ */ Object.create(null);
  state.anchorMap = /* @__PURE__ */ Object.create(null);
  while ((ch = state.input.charCodeAt(state.position)) !== 0) {
    skipSeparationSpace(state, true, -1);
    ch = state.input.charCodeAt(state.position);
    if (state.lineIndent > 0 || ch !== 37) {
      break;
    }
    hasDirectives = true;
    ch = state.input.charCodeAt(++state.position);
    _position = state.position;
    while (ch !== 0 && !is_WS_OR_EOL(ch)) {
      ch = state.input.charCodeAt(++state.position);
    }
    directiveName = state.input.slice(_position, state.position);
    directiveArgs = [];
    if (directiveName.length < 1) {
      throwError(state, "directive name must not be less than one character in length");
    }
    while (ch !== 0) {
      while (is_WHITE_SPACE(ch)) {
        ch = state.input.charCodeAt(++state.position);
      }
      if (ch === 35) {
        do {
          ch = state.input.charCodeAt(++state.position);
        } while (ch !== 0 && !is_EOL(ch));
        break;
      }
      if (is_EOL(ch))
        break;
      _position = state.position;
      while (ch !== 0 && !is_WS_OR_EOL(ch)) {
        ch = state.input.charCodeAt(++state.position);
      }
      directiveArgs.push(state.input.slice(_position, state.position));
    }
    if (ch !== 0)
      readLineBreak(state);
    if (_hasOwnProperty$1.call(directiveHandlers, directiveName)) {
      directiveHandlers[directiveName](state, directiveName, directiveArgs);
    } else {
      throwWarning(state, 'unknown document directive "' + directiveName + '"');
    }
  }
  skipSeparationSpace(state, true, -1);
  if (state.lineIndent === 0 && state.input.charCodeAt(state.position) === 45 && state.input.charCodeAt(state.position + 1) === 45 && state.input.charCodeAt(state.position + 2) === 45) {
    state.position += 3;
    skipSeparationSpace(state, true, -1);
  } else if (hasDirectives) {
    throwError(state, "directives end mark is expected");
  }
  composeNode(state, state.lineIndent - 1, CONTEXT_BLOCK_OUT, false, true);
  skipSeparationSpace(state, true, -1);
  if (state.checkLineBreaks && PATTERN_NON_ASCII_LINE_BREAKS.test(state.input.slice(documentStart, state.position))) {
    throwWarning(state, "non-ASCII line breaks are interpreted as content");
  }
  state.documents.push(state.result);
  if (state.position === state.lineStart && testDocumentSeparator(state)) {
    if (state.input.charCodeAt(state.position) === 46) {
      state.position += 3;
      skipSeparationSpace(state, true, -1);
    }
    return;
  }
  if (state.position < state.length - 1) {
    throwError(state, "end of the stream or a document separator is expected");
  } else {
    return;
  }
}
function loadDocuments(input, options) {
  input = String(input);
  options = options || {};
  if (input.length !== 0) {
    if (input.charCodeAt(input.length - 1) !== 10 && input.charCodeAt(input.length - 1) !== 13) {
      input += "\n";
    }
    if (input.charCodeAt(0) === 65279) {
      input = input.slice(1);
    }
  }
  var state = new State$1(input, options);
  var nullpos = input.indexOf("\0");
  if (nullpos !== -1) {
    state.position = nullpos;
    throwError(state, "null byte is not allowed in input");
  }
  state.input += "\0";
  while (state.input.charCodeAt(state.position) === 32) {
    state.lineIndent += 1;
    state.position += 1;
  }
  while (state.position < state.length - 1) {
    readDocument(state);
  }
  return state.documents;
}
function loadAll$1(input, iterator2, options) {
  if (iterator2 !== null && typeof iterator2 === "object" && typeof options === "undefined") {
    options = iterator2;
    iterator2 = null;
  }
  var documents = loadDocuments(input, options);
  if (typeof iterator2 !== "function") {
    return documents;
  }
  for (var index = 0, length = documents.length; index < length; index += 1) {
    iterator2(documents[index]);
  }
}
function load$1(input, options) {
  var documents = loadDocuments(input, options);
  if (documents.length === 0) {
    return void 0;
  } else if (documents.length === 1) {
    return documents[0];
  }
  throw new exception("expected a single document in the stream, but found more");
}
var loadAll_1 = loadAll$1;
var load_1 = load$1;
var loader = {
  loadAll: loadAll_1,
  load: load_1
};
var FAILSAFE_SCHEMA = failsafe;
var load = loader.load;
const frontMatterRegex = /^-{3}\s*[\n\r](.*?)[\n\r]-{3}\s*[\n\r]+/s;
function extractFrontMatter(text, db) {
  var _a;
  const matches = text.match(frontMatterRegex);
  if (matches) {
    const parsed = load(matches[1], {
      // To keep things simple, only allow strings, arrays, and plain objects.
      // https://www.yaml.org/spec/1.2/spec.html#id2802346
      schema: FAILSAFE_SCHEMA
    });
    if (parsed == null ? void 0 : parsed.title) {
      (_a = db.setDiagramTitle) == null ? void 0 : _a.call(db, parsed.title);
    }
    return text.slice(matches[0].length);
  } else {
    return text;
  }
}
const themes = {};
const getStyles = (type2, userStyles, options) => {
  let diagramStyles = "";
  if (type2 in themes && themes[type2]) {
    diagramStyles = themes[type2](options);
  } else {
    log$1.warn(`No theme found for ${type2}`);
  }
  return ` & {
    font-family: ${options.fontFamily};
    font-size: ${options.fontSize};
    fill: ${options.textColor}
  }

  /* Classes common for multiple diagrams */

  & .error-icon {
    fill: ${options.errorBkgColor};
  }
  & .error-text {
    fill: ${options.errorTextColor};
    stroke: ${options.errorTextColor};
  }

  & .edge-thickness-normal {
    stroke-width: 2px;
  }
  & .edge-thickness-thick {
    stroke-width: 3.5px
  }
  & .edge-pattern-solid {
    stroke-dasharray: 0;
  }

  & .edge-pattern-dashed{
    stroke-dasharray: 3;
  }
  .edge-pattern-dotted {
    stroke-dasharray: 2;
  }

  & .marker {
    fill: ${options.lineColor};
    stroke: ${options.lineColor};
  }
  & .marker.cross {
    stroke: ${options.lineColor};
  }

  & svg {
    font-family: ${options.fontFamily};
    font-size: ${options.fontSize};
  }

  ${diagramStyles}

  ${userStyles}
`;
};
const addStylesForDiagram = (type2, diagramTheme) => {
  themes[type2] = diagramTheme;
};
const getStyles$1 = getStyles;
let currentDirective = {};
const parseDirective$1 = function(p, statement, context, type2) {
  log$1.debug("parseDirective is being called", statement, context, type2);
  try {
    if (statement !== void 0) {
      statement = statement.trim();
      switch (context) {
        case "open_directive":
          currentDirective = {};
          break;
        case "type_directive":
          if (!currentDirective) {
            throw new Error("currentDirective is undefined");
          }
          currentDirective.type = statement.toLowerCase();
          break;
        case "arg_directive":
          if (!currentDirective) {
            throw new Error("currentDirective is undefined");
          }
          currentDirective.args = JSON.parse(statement);
          break;
        case "close_directive":
          handleDirective(p, currentDirective, type2);
          currentDirective = void 0;
          break;
      }
    }
  } catch (error) {
    log$1.error(
      `Error while rendering sequenceDiagram directive: ${statement} jison context: ${context}`
    );
    log$1.error(error.message);
  }
};
const handleDirective = function(p, directive2, type2) {
  log$1.info(`Directive type=${directive2.type} with args:`, directive2.args);
  switch (directive2.type) {
    case "init":
    case "initialize": {
      ["config"].forEach((prop) => {
        if (directive2.args[prop] !== void 0) {
          if (type2 === "flowchart-v2") {
            type2 = "flowchart";
          }
          directive2.args[type2] = directive2.args[prop];
          delete directive2.args[prop];
        }
      });
      log$1.info("sanitize in handleDirective", directive2.args);
      directiveSanitizer(directive2.args);
      log$1.info("sanitize in handleDirective (done)", directive2.args);
      addDirective(directive2.args);
      break;
    }
    case "wrap":
    case "nowrap":
      if (p && p["setWrap"]) {
        p.setWrap(directive2.type === "wrap");
      }
      break;
    case "themeCss":
      log$1.warn("themeCss encountered");
      break;
    default:
      log$1.warn(
        `Unhandled directive: source: '%%{${directive2.type}: ${JSON.stringify(
          directive2.args ? directive2.args : {}
        )}}%%`,
        directive2
      );
      break;
  }
};
const log = log$1;
const setLogLevel = setLogLevel$1;
const getConfig = getConfig$1;
const sanitizeText = (text) => sanitizeText$1(text, getConfig());
const setupGraphViewbox = setupGraphViewbox$1;
const getCommonDb = () => {
  return commonDb;
};
const parseDirective = (p, statement, context, type2) => parseDirective$1(p, statement, context, type2);
const diagrams = {};
const registerDiagram = (id, diagram, detector) => {
  if (diagrams[id]) {
    throw new Error(`Diagram ${id} already registered.`);
  }
  diagrams[id] = diagram;
  if (detector) {
    addDetector(id, detector);
  }
  addStylesForDiagram(id, diagram.styles);
  if (diagram.injectUtils) {
    diagram.injectUtils(
      log,
      setLogLevel,
      getConfig,
      sanitizeText,
      setupGraphViewbox,
      getCommonDb(),
      parseDirective
    );
  }
};
const getDiagram = (name) => {
  if (name in diagrams) {
    return diagrams[name];
  }
  throw new Error(`Diagram ${name} not found.`);
};
class UnknownDiagramError extends Error {
  constructor(message) {
    super(message);
    this.name = "UnknownDiagramError";
  }
}
const directive$1 = /%{2}{\s*(?:(\w+)\s*:|(\w+))\s*(?:(\w+)|((?:(?!}%{2}).|\r?\n)*))?\s*(?:}%{2})?/gi;
const anyComment = /\s*%%.*\n/gm;
const detectors = {};
const detectType = function(text, config) {
  text = text.replace(frontMatterRegex, "").replace(directive$1, "").replace(anyComment, "\n");
  for (const [key, { detector }] of Object.entries(detectors)) {
    const diagram = detector(text, config);
    if (diagram) {
      return key;
    }
  }
  throw new UnknownDiagramError(
    `No diagram type detected matching given configuration for text: ${text}`
  );
};
const registerLazyLoadedDiagrams = (...diagrams2) => {
  for (const { id, detector, loader: loader2 } of diagrams2) {
    addDetector(id, detector, loader2);
  }
};
const loadRegisteredDiagrams = async () => {
  log$1.debug(`Loading registered diagrams`);
  const results = await Promise.allSettled(
    Object.entries(detectors).map(async ([key, { detector, loader: loader2 }]) => {
      if (loader2) {
        try {
          getDiagram(key);
        } catch (error) {
          try {
            const { diagram, id } = await loader2();
            registerDiagram(id, diagram, detector);
          } catch (err) {
            log$1.error(`Failed to load external diagram with key ${key}. Removing from detectors.`);
            delete detectors[key];
            throw err;
          }
        }
      }
    })
  );
  const failed = results.filter((result) => result.status === "rejected");
  if (failed.length > 0) {
    log$1.error(`Failed to load ${failed.length} external diagrams`);
    for (const res of failed) {
      log$1.error(res);
    }
    throw new Error(`Failed to load ${failed.length} external diagrams`);
  }
};
const addDetector = (key, detector, loader2) => {
  if (detectors[key]) {
    log$1.error(`Detector with key ${key} already exists`);
  } else {
    detectors[key] = { detector, loader: loader2 };
  }
  log$1.debug(`Detector with key ${key} added${loader2 ? " with loader" : ""}`);
};
const getDiagramLoader = (key) => {
  return detectors[key].loader;
};
const d3CurveTypes = {
  curveBasis,
  curveBasisClosed,
  curveBasisOpen,
  curveBumpX,
  curveBumpY,
  curveBundle,
  curveCardinalClosed,
  curveCardinalOpen,
  curveCardinal,
  curveCatmullRomClosed,
  curveCatmullRomOpen,
  curveCatmullRom,
  curveLinear,
  curveLinearClosed,
  curveMonotoneX,
  curveMonotoneY,
  curveNatural,
  curveStep,
  curveStepAfter,
  curveStepBefore
};
const directive = /%{2}{\s*(?:(\w+)\s*:|(\w+))\s*(?:(\w+)|((?:(?!}%{2}).|\r?\n)*))?\s*(?:}%{2})?/gi;
const directiveWithoutOpen = /\s*(?:(\w+)(?=:):|(\w+))\s*(?:(\w+)|((?:(?!}%{2}).|\r?\n)*))?\s*(?:}%{2})?/gi;
const detectInit = function(text, config) {
  const inits = detectDirective(text, /(?:init\b)|(?:initialize\b)/);
  let results = {};
  if (Array.isArray(inits)) {
    const args = inits.map((init) => init.args);
    directiveSanitizer(args);
    results = assignWithDepth(results, [...args]);
  } else {
    results = inits.args;
  }
  if (results) {
    let type2 = detectType(text, config);
    ["config"].forEach((prop) => {
      if (results[prop] !== void 0) {
        if (type2 === "flowchart-v2") {
          type2 = "flowchart";
        }
        results[type2] = results[prop];
        delete results[prop];
      }
    });
  }
  return results;
};
const detectDirective = function(text, type2 = null) {
  try {
    const commentWithoutDirectives = new RegExp(
      `[%]{2}(?![{]${directiveWithoutOpen.source})(?=[}][%]{2}).*
`,
      "ig"
    );
    text = text.trim().replace(commentWithoutDirectives, "").replace(/'/gm, '"');
    log$1.debug(
      `Detecting diagram directive${type2 !== null ? " type:" + type2 : ""} based on the text:${text}`
    );
    let match;
    const result = [];
    while ((match = directive.exec(text)) !== null) {
      if (match.index === directive.lastIndex) {
        directive.lastIndex++;
      }
      if (match && !type2 || type2 && match[1] && match[1].match(type2) || type2 && match[2] && match[2].match(type2)) {
        const type22 = match[1] ? match[1] : match[2];
        const args = match[3] ? match[3].trim() : match[4] ? JSON.parse(match[4].trim()) : null;
        result.push({ type: type22, args });
      }
    }
    if (result.length === 0) {
      result.push({ type: text, args: null });
    }
    return result.length === 1 ? result[0] : result;
  } catch (error) {
    log$1.error(
      `ERROR: ${error.message} - Unable to parse directive
      ${type2 !== null ? " type:" + type2 : ""} based on the text:${text}`
    );
    return { type: null, args: null };
  }
};
const isSubstringInArray = function(str2, arr) {
  for (const [i, element] of arr.entries()) {
    if (element.match(str2)) {
      return i;
    }
  }
  return -1;
};
function interpolateToCurve(interpolate, defaultCurve) {
  if (!interpolate) {
    return defaultCurve;
  }
  const curveName = `curve${interpolate.charAt(0).toUpperCase() + interpolate.slice(1)}`;
  return d3CurveTypes[curveName] || defaultCurve;
}
function formatUrl(linkStr, config) {
  const url = linkStr.trim();
  if (url) {
    if (config.securityLevel !== "loose") {
      return sanitizeUrl(url);
    }
    return url;
  }
}
const runFunc = (functionName, ...params) => {
  const arrPaths = functionName.split(".");
  const len = arrPaths.length - 1;
  const fnName = arrPaths[len];
  let obj = window;
  for (let i = 0; i < len; i++) {
    obj = obj[arrPaths[i]];
    if (!obj) {
      return;
    }
  }
  obj[fnName](...params);
};
function distance(p1, p2) {
  return p1 && p2 ? Math.sqrt(Math.pow(p2.x - p1.x, 2) + Math.pow(p2.y - p1.y, 2)) : 0;
}
function traverseEdge(points) {
  let prevPoint;
  let totalDistance = 0;
  points.forEach((point) => {
    totalDistance += distance(point, prevPoint);
    prevPoint = point;
  });
  let remainingDistance = totalDistance / 2;
  let center = void 0;
  prevPoint = void 0;
  points.forEach((point) => {
    if (prevPoint && !center) {
      const vectorDistance = distance(point, prevPoint);
      if (vectorDistance < remainingDistance) {
        remainingDistance -= vectorDistance;
      } else {
        const distanceRatio = remainingDistance / vectorDistance;
        if (distanceRatio <= 0) {
          center = prevPoint;
        }
        if (distanceRatio >= 1) {
          center = { x: point.x, y: point.y };
        }
        if (distanceRatio > 0 && distanceRatio < 1) {
          center = {
            x: (1 - distanceRatio) * prevPoint.x + distanceRatio * point.x,
            y: (1 - distanceRatio) * prevPoint.y + distanceRatio * point.y
          };
        }
      }
    }
    prevPoint = point;
  });
  return center;
}
function calcLabelPosition(points) {
  if (points.length === 1) {
    return points[0];
  }
  return traverseEdge(points);
}
const calcCardinalityPosition = (isRelationTypePresent, points, initialPosition) => {
  let prevPoint;
  log$1.info(`our points ${JSON.stringify(points)}`);
  if (points[0] !== initialPosition) {
    points = points.reverse();
  }
  const distanceToCardinalityPoint = 25;
  let remainingDistance = distanceToCardinalityPoint;
  let center;
  prevPoint = void 0;
  points.forEach((point) => {
    if (prevPoint && !center) {
      const vectorDistance = distance(point, prevPoint);
      if (vectorDistance < remainingDistance) {
        remainingDistance -= vectorDistance;
      } else {
        const distanceRatio = remainingDistance / vectorDistance;
        if (distanceRatio <= 0) {
          center = prevPoint;
        }
        if (distanceRatio >= 1) {
          center = { x: point.x, y: point.y };
        }
        if (distanceRatio > 0 && distanceRatio < 1) {
          center = {
            x: (1 - distanceRatio) * prevPoint.x + distanceRatio * point.x,
            y: (1 - distanceRatio) * prevPoint.y + distanceRatio * point.y
          };
        }
      }
    }
    prevPoint = point;
  });
  const d = isRelationTypePresent ? 10 : 5;
  const angle = Math.atan2(points[0].y - center.y, points[0].x - center.x);
  const cardinalityPosition = { x: 0, y: 0 };
  cardinalityPosition.x = Math.sin(angle) * d + (points[0].x + center.x) / 2;
  cardinalityPosition.y = -Math.cos(angle) * d + (points[0].y + center.y) / 2;
  return cardinalityPosition;
};
function calcTerminalLabelPosition(terminalMarkerSize, position, _points) {
  let points = JSON.parse(JSON.stringify(_points));
  let prevPoint;
  log$1.info("our points", points);
  if (position !== "start_left" && position !== "start_right") {
    points = points.reverse();
  }
  points.forEach((point) => {
    prevPoint = point;
  });
  const distanceToCardinalityPoint = 25 + terminalMarkerSize;
  let remainingDistance = distanceToCardinalityPoint;
  let center;
  prevPoint = void 0;
  points.forEach((point) => {
    if (prevPoint && !center) {
      const vectorDistance = distance(point, prevPoint);
      if (vectorDistance < remainingDistance) {
        remainingDistance -= vectorDistance;
      } else {
        const distanceRatio = remainingDistance / vectorDistance;
        if (distanceRatio <= 0) {
          center = prevPoint;
        }
        if (distanceRatio >= 1) {
          center = { x: point.x, y: point.y };
        }
        if (distanceRatio > 0 && distanceRatio < 1) {
          center = {
            x: (1 - distanceRatio) * prevPoint.x + distanceRatio * point.x,
            y: (1 - distanceRatio) * prevPoint.y + distanceRatio * point.y
          };
        }
      }
    }
    prevPoint = point;
  });
  const d = 10 + terminalMarkerSize * 0.5;
  const angle = Math.atan2(points[0].y - center.y, points[0].x - center.x);
  const cardinalityPosition = { x: 0, y: 0 };
  cardinalityPosition.x = Math.sin(angle) * d + (points[0].x + center.x) / 2;
  cardinalityPosition.y = -Math.cos(angle) * d + (points[0].y + center.y) / 2;
  if (position === "start_left") {
    cardinalityPosition.x = Math.sin(angle + Math.PI) * d + (points[0].x + center.x) / 2;
    cardinalityPosition.y = -Math.cos(angle + Math.PI) * d + (points[0].y + center.y) / 2;
  }
  if (position === "end_right") {
    cardinalityPosition.x = Math.sin(angle - Math.PI) * d + (points[0].x + center.x) / 2 - 5;
    cardinalityPosition.y = -Math.cos(angle - Math.PI) * d + (points[0].y + center.y) / 2 - 5;
  }
  if (position === "end_left") {
    cardinalityPosition.x = Math.sin(angle) * d + (points[0].x + center.x) / 2 - 5;
    cardinalityPosition.y = -Math.cos(angle) * d + (points[0].y + center.y) / 2 - 5;
  }
  return cardinalityPosition;
}
function getStylesFromArray(arr) {
  let style = "";
  let labelStyle = "";
  for (const element of arr) {
    if (element !== void 0) {
      if (element.startsWith("color:") || element.startsWith("text-align:")) {
        labelStyle = labelStyle + element + ";";
      } else {
        style = style + element + ";";
      }
    }
  }
  return { style, labelStyle };
}
let cnt = 0;
const generateId = () => {
  cnt++;
  return "id-" + Math.random().toString(36).substr(2, 12) + "-" + cnt;
};
function makeid(length) {
  let result = "";
  const characters = "0123456789abcdef";
  const charactersLength = characters.length;
  for (let i = 0; i < length; i++) {
    result += characters.charAt(Math.floor(Math.random() * charactersLength));
  }
  return result;
}
const random = (options) => {
  return makeid(options.length);
};
const getTextObj = function() {
  return {
    x: 0,
    y: 0,
    fill: void 0,
    anchor: "start",
    style: "#666",
    width: 100,
    height: 100,
    textMargin: 0,
    rx: 0,
    ry: 0,
    valign: void 0
  };
};
const drawSimpleText = function(elem, textData) {
  const nText = textData.text.replace(common$1.lineBreakRegex, " ");
  const [, _fontSizePx] = parseFontSize(textData.fontSize);
  const textElem = elem.append("text");
  textElem.attr("x", textData.x);
  textElem.attr("y", textData.y);
  textElem.style("text-anchor", textData.anchor);
  textElem.style("font-family", textData.fontFamily);
  textElem.style("font-size", _fontSizePx);
  textElem.style("font-weight", textData.fontWeight);
  textElem.attr("fill", textData.fill);
  if (textData.class !== void 0) {
    textElem.attr("class", textData.class);
  }
  const span = textElem.append("tspan");
  span.attr("x", textData.x + textData.textMargin * 2);
  span.attr("fill", textData.fill);
  span.text(nText);
  return textElem;
};
const wrapLabel = memoize(
  (label, maxWidth, config) => {
    if (!label) {
      return label;
    }
    config = Object.assign(
      { fontSize: 12, fontWeight: 400, fontFamily: "Arial", joinWith: "<br/>" },
      config
    );
    if (common$1.lineBreakRegex.test(label)) {
      return label;
    }
    const words = label.split(" ");
    const completedLines = [];
    let nextLine = "";
    words.forEach((word, index) => {
      const wordLength = calculateTextWidth(`${word} `, config);
      const nextLineLength = calculateTextWidth(nextLine, config);
      if (wordLength > maxWidth) {
        const { hyphenatedStrings, remainingWord } = breakString(word, maxWidth, "-", config);
        completedLines.push(nextLine, ...hyphenatedStrings);
        nextLine = remainingWord;
      } else if (nextLineLength + wordLength >= maxWidth) {
        completedLines.push(nextLine);
        nextLine = word;
      } else {
        nextLine = [nextLine, word].filter(Boolean).join(" ");
      }
      const currentWord = index + 1;
      const isLastWord = currentWord === words.length;
      if (isLastWord) {
        completedLines.push(nextLine);
      }
    });
    return completedLines.filter((line) => line !== "").join(config.joinWith);
  },
  (label, maxWidth, config) => `${label}${maxWidth}${config.fontSize}${config.fontWeight}${config.fontFamily}${config.joinWith}`
);
const breakString = memoize(
  (word, maxWidth, hyphenCharacter = "-", config) => {
    config = Object.assign(
      { fontSize: 12, fontWeight: 400, fontFamily: "Arial", margin: 0 },
      config
    );
    const characters = [...word];
    const lines = [];
    let currentLine = "";
    characters.forEach((character, index) => {
      const nextLine = `${currentLine}${character}`;
      const lineWidth = calculateTextWidth(nextLine, config);
      if (lineWidth >= maxWidth) {
        const currentCharacter = index + 1;
        const isLastLine = characters.length === currentCharacter;
        const hyphenatedNextLine = `${nextLine}${hyphenCharacter}`;
        lines.push(isLastLine ? nextLine : hyphenatedNextLine);
        currentLine = "";
      } else {
        currentLine = nextLine;
      }
    });
    return { hyphenatedStrings: lines, remainingWord: currentLine };
  },
  (word, maxWidth, hyphenCharacter = "-", config) => `${word}${maxWidth}${hyphenCharacter}${config.fontSize}${config.fontWeight}${config.fontFamily}`
);
function calculateTextHeight(text, config) {
  config = Object.assign(
    { fontSize: 12, fontWeight: 400, fontFamily: "Arial", margin: 15 },
    config
  );
  return calculateTextDimensions(text, config).height;
}
function calculateTextWidth(text, config) {
  config = Object.assign({ fontSize: 12, fontWeight: 400, fontFamily: "Arial" }, config);
  return calculateTextDimensions(text, config).width;
}
const calculateTextDimensions = memoize(
  (text, config) => {
    config = Object.assign({ fontSize: 12, fontWeight: 400, fontFamily: "Arial" }, config);
    const { fontSize, fontFamily, fontWeight } = config;
    if (!text) {
      return { width: 0, height: 0 };
    }
    const [, _fontSizePx] = parseFontSize(fontSize);
    const fontFamilies = ["sans-serif", fontFamily];
    const lines = text.split(common$1.lineBreakRegex);
    const dims = [];
    const body = select("body");
    if (!body.remove) {
      return { width: 0, height: 0, lineHeight: 0 };
    }
    const g = body.append("svg");
    for (const fontFamily2 of fontFamilies) {
      let cheight = 0;
      const dim = { width: 0, height: 0, lineHeight: 0 };
      for (const line of lines) {
        const textObj = getTextObj();
        textObj.text = line;
        const textElem = drawSimpleText(g, textObj).style("font-size", _fontSizePx).style("font-weight", fontWeight).style("font-family", fontFamily2);
        const bBox = (textElem._groups || textElem)[0][0].getBBox();
        dim.width = Math.round(Math.max(dim.width, bBox.width));
        cheight = Math.round(bBox.height);
        dim.height += cheight;
        dim.lineHeight = Math.round(Math.max(dim.lineHeight, cheight));
      }
      dims.push(dim);
    }
    g.remove();
    const index = isNaN(dims[1].height) || isNaN(dims[1].width) || isNaN(dims[1].lineHeight) || dims[0].height > dims[1].height && dims[0].width > dims[1].width && dims[0].lineHeight > dims[1].lineHeight ? 0 : 1;
    return dims[index];
  },
  (text, config) => `${text}${config.fontSize}${config.fontWeight}${config.fontFamily}`
);
const initIdGenerator = class iterator {
  constructor(deterministic, seed) {
    this.deterministic = deterministic;
    this.seed = seed;
    this.count = seed ? seed.length : 0;
  }
  next() {
    if (!this.deterministic) {
      return Date.now();
    }
    return this.count++;
  }
};
let decoder;
const entityDecode = function(html) {
  decoder = decoder || document.createElement("div");
  html = escape(html).replace(/%26/g, "&").replace(/%23/g, "#").replace(/%3B/g, ";");
  decoder.innerHTML = html;
  return unescape(decoder.textContent);
};
const directiveSanitizer = (args) => {
  log$1.debug("directiveSanitizer called with", args);
  if (typeof args === "object") {
    if (args.length) {
      args.forEach((arg) => directiveSanitizer(arg));
    } else {
      Object.keys(args).forEach((key) => {
        log$1.debug("Checking key", key);
        if (key.startsWith("__")) {
          log$1.debug("sanitize deleting __ option", key);
          delete args[key];
        }
        if (key.includes("proto")) {
          log$1.debug("sanitize deleting proto option", key);
          delete args[key];
        }
        if (key.includes("constr")) {
          log$1.debug("sanitize deleting constr option", key);
          delete args[key];
        }
        if (key.includes("themeCSS")) {
          log$1.debug("sanitizing themeCss option");
          args[key] = sanitizeCss(args[key]);
        }
        if (key.includes("fontFamily")) {
          log$1.debug("sanitizing fontFamily option");
          args[key] = sanitizeCss(args[key]);
        }
        if (key.includes("altFontFamily")) {
          log$1.debug("sanitizing altFontFamily option");
          args[key] = sanitizeCss(args[key]);
        }
        if (!configKeys.includes(key)) {
          log$1.debug("sanitize deleting option", key);
          delete args[key];
        } else {
          if (typeof args[key] === "object") {
            log$1.debug("sanitize deleting object", key);
            directiveSanitizer(args[key]);
          }
        }
      });
    }
  }
  if (args.themeVariables) {
    const kArr = Object.keys(args.themeVariables);
    for (const k of kArr) {
      const val = args.themeVariables[k];
      if (val && val.match && !val.match(/^[\d "#%(),.;A-Za-z]+$/)) {
        args.themeVariables[k] = "";
      }
    }
  }
  log$1.debug("After sanitization", args);
};
const sanitizeCss = (str2) => {
  let startCnt = 0;
  let endCnt = 0;
  for (const element of str2) {
    if (startCnt < endCnt) {
      return "{ /* ERROR: Unbalanced CSS */ }";
    }
    if (element === "{") {
      startCnt++;
    } else if (element === "}") {
      endCnt++;
    }
  }
  if (startCnt !== endCnt) {
    return "{ /* ERROR: Unbalanced CSS */ }";
  }
  return str2;
};
function isDetailedError(error) {
  return "str" in error;
}
function getErrorMessage(error) {
  if (error instanceof Error) {
    return error.message;
  }
  return String(error);
}
const insertTitle = (parent, cssClass, titleTopMargin, title) => {
  if (!title) {
    return;
  }
  const bounds = parent.node().getBBox();
  parent.append("text").text(title).attr("x", bounds.x + bounds.width / 2).attr("y", -titleTopMargin).attr("class", cssClass);
};
const parseFontSize = (fontSize) => {
  if (typeof fontSize === "number") {
    return [fontSize, fontSize + "px"];
  }
  const fontSizeNumber = parseInt(fontSize, 10);
  if (Number.isNaN(fontSizeNumber)) {
    return [void 0, void 0];
  } else if (fontSize === String(fontSizeNumber)) {
    return [fontSizeNumber, fontSize + "px"];
  } else {
    return [fontSizeNumber, fontSize];
  }
};
const utils = {
  assignWithDepth,
  wrapLabel,
  calculateTextHeight,
  calculateTextWidth,
  calculateTextDimensions,
  detectInit,
  detectDirective,
  isSubstringInArray,
  interpolateToCurve,
  calcLabelPosition,
  calcCardinalityPosition,
  calcTerminalLabelPosition,
  formatUrl,
  getStylesFromArray,
  generateId,
  random,
  runFunc,
  entityDecode,
  initIdGenerator,
  directiveSanitizer,
  sanitizeCss,
  insertTitle,
  parseFontSize
};
export {
  UnknownDiagramError as U,
  registerDiagram as a,
  getDiagramLoader as b,
  directiveSanitizer as c,
  detectType as d,
  extractFrontMatter as e,
  getStyles$1 as f,
  getDiagram as g,
  getErrorMessage as h,
  isDetailedError as i,
  calculateTextWidth as j,
  calculateTextHeight as k,
  loadRegisteredDiagrams as l,
  getStylesFromArray as m,
  interpolateToCurve as n,
  random as o,
  parseDirective$1 as p,
  getConfig as q,
  registerLazyLoadedDiagrams as r,
  setupGraphViewbox as s,
  parseFontSize as t,
  utils as u,
  generateId as v,
  wrapLabel as w
};
//# sourceMappingURL=utils-29e2c981.js.map
