package/license000644 0000002127 3560116604 010627 0ustar00000000 000000 The MIT License (MIT) Copyright (c) Ben Drucker (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. package/index.js000644 0000004424 3560116604 010731 0ustar00000000 000000 'use strict' exports.parse = function (source, transform) { return new ArrayParser(source, transform).parse() } class ArrayParser { constructor (source, transform) { this.source = source this.transform = transform || identity this.position = 0 this.entries = [] this.recorded = [] this.dimension = 0 } isEof () { 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) { this.recorded.push(character) } newEntry (includeEmpty) { 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 () { if (this.source[0] === '[') { while (!this.isEof()) { const char = this.nextCharacter() if (char.value === '=') break } } } parse (nested) { 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) { return value } package/package.json000644 0000001212 3560116604 011542 0ustar00000000 000000 { "name": "postgres-array", "main": "index.js", "version": "3.0.1", "description": "Parse postgres array columns", "license": "MIT", "repository": "bendrucker/postgres-array", "author": { "name": "Ben Drucker", "email": "bvdrucker@gmail.com", "url": "bendrucker.me" }, "engines": { "node": ">=12" }, "scripts": { "test": "standard && tape test.js" }, "types": "index.d.ts", "keywords": [ "postgres", "array", "parser" ], "dependencies": {}, "devDependencies": { "standard": "^16.0.0", "tape": "^5.0.0" }, "files": [ "index.js", "index.d.ts", "readme.md" ] } package/readme.md000644 0000001274 3560116604 011043 0ustar00000000 000000 # postgres-array [![tests](https://github.com/bendrucker/postgres-array/workflows/tests/badge.svg)](https://github.com/bendrucker/postgres-array/actions?query=workflow%3Atests) > Parse postgres array columns ## Install ``` npm install --save postgres-array ``` ## Usage ```js const { parse } = require('postgres-array') parse('{1,2,3}', (value) => parseInt(value, 10)) //=> [1, 2, 3] ``` ## API #### `parse(input, [transform])` -> `array` ##### input *Required* Type: `string` A Postgres array string. ##### transform Type: `function` Default: `identity` A function that transforms non-null values inserted into the array. ## License MIT © [Ben Drucker](http://bendrucker.me) package/index.d.ts000644 0000000203 3560116604 011154 0ustar00000000 000000 export function parse(source: string): string[]; export function parse(source: string, transform: (value: string) => T): T[];