emoji_support contains bad content where there is a literal string

[longkai]

So when you set emoji_support to true, adding a test case to the unicode_test.go:

		{
			name: "literal string",
			yamlStr: `a: |
  hello 😄\n`,
			expectedStr: `a: |
  hello 😄\n`,
		},

Which results:

parsed string does not match:
        expected: a: |
          hello 😄\n
        got: a: "hello 😄n"

I suppose the literal string turns one line due to the go-yaml library. However, the tail n is unacceptable.

[longkai]

Sorry, I should not use \n in literal string qaq

[braydonk]

I notice you've closed it now, but here's what I've got about the issues with the output just to keep track.

Of the 3 issues with the output:

• Double quotes around the result
  • This is from the yaml library. I haven't yet thought of a context free way to get rid of these due to the way they are added into the formatted output, but I'm experimenting with solutions.
• Outputting to a single line
  • This is also from the library, and this one I'm not sure why it does that. It's possible the yaml.Node serialization doesn't retain the | multiline literal syntax information.
• The trailing n
  • This was a bug with emoji_support in 0.5.0 that I fixed in hotfix: stop unicode from removing backslashes #55 and will be in version 0.6.0

[longkai]

Haha I also found the issue and it should advance one byte to check 'U'.

Besides I figure it out why it always formats to a single line since it considers emoji is not printable, so the text contains special characters and always output to escaped one line instead of multi-line literal string or simple string.