Fix \ and $ escape error in VSCode snippet

[sabertazimi]

Examples

VSCode JSON snippet => true output

• "\\" => ""
• "\\\\" => "\"
• "\\begin" => "\begin"
• "\$" => "$"
• "\$abc" => "$abc"
• "\\\$" => "$"
• "\\\$abc" => "$abc"
• "\\\\\$" => "\$"
• "\\\\\$abc" => "\$abc"

[pawelgrzybek]

Hi.

I finally had a chance to review your PR. You did an amazing job and I am really thankful for your time, effort and research. It fixes the issue #13 but unfortunately introduces a new issue. Because you target all $ it escapes placeholders too. The syntax for placeholder is $1, $2, $3 or ${1:name}, ${2:surname}, ${1:age}. It breaks this feature.

I am closing this one for now and feel free to resubmit if you have a fixed implementation.

Thanks a lot and have a nice weekend.