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// Ported from https://github.com/bendrucker/postgres-array// The MIT License (MIT)//// Copyright (c) Ben Drucker <bvdrucker@gmail.com> (bendrucker.me)//// Permission is hereby granted, free of charge, to any person obtaining a copy// of this software and associated documentation files (the "Software"), to deal// in the Software without restriction, including without limitation the rights// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell// copies of the Software, and to permit persons to whom the Software is// furnished to do so, subject to the following conditions://// The above copyright notice and this permission notice shall be included in// all copies or substantial portions of the Software.//// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN// THE SOFTWARE.export function parseArray(source: string, transform: Function | undefined) {  return new ArrayParser(source, transform).parse();}
class ArrayParser {  source: string;  transform: Function;  position = 0;  entries: Array<unknown> = [];  recorded: Array<unknown> = [];  dimension = 0;
  constructor(source: string, transform: Function | undefined) {    this.source = source;    this.transform = transform || identity;  }
  isEof(): boolean {    return this.position >= this.source.length;  }
  nextCharacter() {    const character = this.source[this.position++];    if (character === "\\") {      return {        value: this.source[this.position++],        escaped: true,      };    }    return {      value: character,      escaped: false,    };  }
  record(character: string): void {    this.recorded.push(character);  }
  newEntry(includeEmpty = false): void {    let entry;    if (this.recorded.length > 0 || includeEmpty) {      entry = this.recorded.join("");      if (entry === "NULL" && !includeEmpty) {        entry = null;      }      if (entry !== null) entry = this.transform(entry);      this.entries.push(entry);      this.recorded = [];    }  }
  consumeDimensions(): void {    if (this.source[0] === "[") {      while (!this.isEof()) {        let char = this.nextCharacter();        if (char.value === "=") break;      }    }  }
  parse(nested?: boolean): Array<unknown> {    let character, parser, quote;    this.consumeDimensions();    while (!this.isEof()) {      character = this.nextCharacter();      if (character.value === "{" && !quote) {        this.dimension++;        if (this.dimension > 1) {          parser = new ArrayParser(            this.source.substr(this.position - 1),            this.transform,          );          this.entries.push(parser.parse(true));          this.position += parser.position - 2;        }      } else if (character.value === "}" && !quote) {        this.dimension--;        if (!this.dimension) {          this.newEntry();          if (nested) return this.entries;        }      } else if (character.value === '"' && !character.escaped) {        if (quote) this.newEntry(true);        quote = !quote;      } else if (character.value === "," && !quote) {        this.newEntry();      } else {        this.record(character.value);      }    }    if (this.dimension !== 0) {      throw new Error("array dimension not balanced");    }    return this.entries;  }}
function identity(value: string): string {  return value;}