Behaviour deviates from Node dotenv

[harishnair96]

I am using the following code to compare the difference in behaviour.

require('dotenv').config()

console.log(process.env.TEST_ENV)

package main

import (
	"fmt"
	"os"

	"github.com/joho/godotenv"
)

func main() {
	if err := godotenv.Load(); err != nil {
		fmt.Fprintln(os.Stderr, err)
	}
	fmt.Println(os.Getenv("TEST_ENV"))
}

1. Double quotes without escape

   TEST_ENV="test"test"

   Node dotenv worked but godotenv failed to even parse the env file.

   

2. Double quotes with escape

   TEST_ENV="test\"test"    

   Node dotenv parsed the value literally but gotdotenv used \ to escape the double quote.

   

3. Exclamation mark with escape

   TEST_ENV="test\!test"

   Node dotenv parsed the value literally but godotenv used \ to escape the exclamation mark.

   

   An additional point here is that both the libraries parses exclamation marks without escape as well.

   TEST_ENV="test!test"

   

   However godotenv escapes exclamation during marshalling.

[ayushdoesdev]

HI @joho can I address this? If this needs to be done then I can try working on this.

[silverwind]

See the DQV section https://github.com/ko1nksm/shdotenv/blob/main/docs/dialects.md for some research on what characters the various dotenv parsers require to be escaped.

https://github.com/ko1nksm/shdotenv/blob/main/docs/specification.md#double-quoted-value is a attempt to standardize this parsing and it requires the listed 4 characters to be escaped inside double-quoted strings.