Parsing variables in single quoted strings.

[ericroberts]

I recently ran into a problem because in my .env file I was setting a password, and that password happened to have a $ in it. eg: PASSWORD='pass$word'. Although I single quoted the string, the parser is still expanding the variable, when it shouldn't be.

The correct behaviour would be to expand the variable when the string is double quoted, and to not expand the variable when the string is single quoted.

I wrote some tests that reflect the proper behaviour but I'm having some difficulty writing a solution that passes all the other tests. Any help or pointers in the right direction would be appreciated. I'm happy to keep working on a solution myself but thought I would throw it out there in case this issue is known.

Here are the tests I wrote:

it 'expands variables in double quoted strings' do
  expect(env("FOO=test\nBAR=\"quote $FOO\"")).to eql('FOO' => 'test', 'BAR' => 'quote test')
end

it 'does not expand variables in single quoted strings' do
  expect(env("BAR='quote $FOO'")).to eql('BAR' => 'quote $FOO')
end

[ericroberts]

Figured it out and opened a pull request here: #124

[ericroberts]

Pull request has been merged.