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Le Viet
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'use strict'
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var DATE_TIME = /(\d{1,})-(\d{2})-(\d{2}) (\d{2}):(\d{2}):(\d{2})(\.\d{1,})?.*?( BC)?$/
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var DATE = /^(\d{1,})-(\d{2})-(\d{2})( BC)?$/
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var TIME_ZONE = /([Z+-])(\d{2})?:?(\d{2})?:?(\d{2})?/
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var INFINITY = /^-?infinity$/
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module.exports = function parseDate (isoDate) {
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if (INFINITY.test(isoDate)) {
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// Capitalize to Infinity before passing to Number
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return Number(isoDate.replace('i', 'I'))
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}
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var matches = DATE_TIME.exec(isoDate)
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if (!matches) {
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// Force YYYY-MM-DD dates to be parsed as local time
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return getDate(isoDate) || null
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}
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var isBC = !!matches[8]
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var year = parseInt(matches[1], 10)
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if (isBC) {
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year = bcYearToNegativeYear(year)
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}
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var month = parseInt(matches[2], 10) - 1
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var day = matches[3]
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var hour = parseInt(matches[4], 10)
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var minute = parseInt(matches[5], 10)
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var second = parseInt(matches[6], 10)
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var ms = matches[7]
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ms = ms ? 1000 * parseFloat(ms) : 0
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var date
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var offset = timeZoneOffset(isoDate)
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if (offset != null) {
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date = new Date(Date.UTC(year, month, day, hour, minute, second, ms))
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// Account for years from 0 to 99 being interpreted as 1900-1999
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// by Date.UTC / the multi-argument form of the Date constructor
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if (is0To99(year)) {
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date.setUTCFullYear(year)
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}
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date.setTime(date.getTime() - offset)
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} else {
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date = new Date(year, month, day, hour, minute, second, ms)
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if (is0To99(year)) {
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date.setFullYear(year)
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}
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}
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return date
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}
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function getDate (isoDate) {
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var matches = DATE.exec(isoDate)
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if (!matches) {
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return
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}
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var year = parseInt(matches[1], 10)
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var isBC = !!matches[4]
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if (isBC) {
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year = bcYearToNegativeYear(year)
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}
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var month = parseInt(matches[2], 10) - 1
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var day = matches[3]
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// YYYY-MM-DD will be parsed as local time
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var date = new Date(year, month, day)
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if (is0To99(year)) {
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date.setFullYear(year)
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}
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return date
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}
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// match timezones:
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// Z (UTC)
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// -05
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// +06:30
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function timeZoneOffset (isoDate) {
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var zone = TIME_ZONE.exec(isoDate.split(' ')[1])
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if (!zone) return
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var type = zone[1]
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if (type === 'Z') {
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return 0
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}
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var sign = type === '-' ? -1 : 1
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var offset = parseInt(zone[2], 10) * 3600 +
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parseInt(zone[3] || 0, 10) * 60 +
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parseInt(zone[4] || 0, 10)
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return offset * sign * 1000
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}
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function bcYearToNegativeYear (year) {
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// Account for numerical difference between representations of BC years
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// See: https://github.com/bendrucker/postgres-date/issues/5
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return -(year - 1)
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}
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function is0To99 (num) {
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return num >= 0 && num < 100
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}
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+21
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The MIT License (MIT)
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Copyright (c) Ben Drucker <bvdrucker@gmail.com> (bendrucker.me)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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+68
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{
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"_args": [
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[
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"postgres-date@1.0.4",
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"/home/app"
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]
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],
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"_from": "postgres-date@1.0.4",
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"_id": "postgres-date@1.0.4",
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"_inBundle": false,
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"_integrity": "sha512-bESRvKVuTrjoBluEcpv2346+6kgB7UlnqWZsnbnCccTNq/pqfj1j6oBaN5+b/NrDXepYUT/HKadqv3iS9lJuVA==",
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"_location": "/postgres-date",
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"_phantomChildren": {},
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"_requested": {
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"type": "version",
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"registry": true,
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"raw": "postgres-date@1.0.4",
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"name": "postgres-date",
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"escapedName": "postgres-date",
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"rawSpec": "1.0.4",
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"saveSpec": null,
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"fetchSpec": "1.0.4"
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},
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"_requiredBy": [
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"/pg-types"
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],
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"_resolved": "https://registry.npmjs.org/postgres-date/-/postgres-date-1.0.4.tgz",
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"_spec": "1.0.4",
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"_where": "/home/app",
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"author": {
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"name": "Ben Drucker",
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"email": "bvdrucker@gmail.com",
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"url": "bendrucker.me"
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},
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"bugs": {
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"url": "https://github.com/bendrucker/postgres-date/issues"
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},
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"dependencies": {},
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"description": "Postgres date column parser",
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"devDependencies": {
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"standard": "^12.0.1",
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"tape": "^4.0.0"
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},
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"engines": {
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"node": ">=0.10.0"
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},
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"files": [
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"index.js",
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"readme.md"
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],
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"homepage": "https://github.com/bendrucker/postgres-date#readme",
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"keywords": [
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"postgres",
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"date",
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"parser"
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],
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"license": "MIT",
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"main": "index.js",
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"name": "postgres-date",
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"repository": {
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"type": "git",
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"url": "git+https://github.com/bendrucker/postgres-date.git"
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},
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"scripts": {
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"test": "standard && tape test.js"
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},
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"version": "1.0.4"
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}
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+34
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# postgres-date [](https://travis-ci.org/bendrucker/postgres-date) [](https://greenkeeper.io/)
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> Postgres date column parser
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## Install
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```
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$ npm install --save postgres-date
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```
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## Usage
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```js
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var parse = require('postgres-date')
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parse('2011-01-23 22:15:51Z')
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// => 2011-01-23T22:15:51.000Z
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```
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## API
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#### `parse(isoDate)` -> `date`
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##### isoDate
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*Required*
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Type: `string`
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A date string from Postgres.
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## License
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MIT © [Ben Drucker](http://bendrucker.me)
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