Format strings not being handled in grammar

[fabioz]

Given the grammar:

https://github.com/textmate/markdown.tmbundle/blob/master/Syntaxes/Markdown.tmLanguage it seems that vscode can't properly handle the construct https://github.com/textmate/markdown.tmbundle/blob/master/Syntaxes/Markdown.tmLanguage#L105

i.e.: when parsing a markdown with '##' with this construct (markup.heading.${1/(#)(#)?(#)?(#)?(#)?(#)?/${6:?6:${5:?5:${4:?4:${3:?3:${2:?2:1}}}}}/}.markdown), it'd be expected that the result is markup.heading.2.markdown, whereas vscode is just giving markup.heading.${1/(#)(#)?(#)?(#)?(#)?(#)?/${6:?6:${5:?5:${4:?4:${3:?3:${2:?2:1}}}}}/}.markdown as the result.

[alexdima]

@fabioz Do you happen to know how one should interpret / substitute
${1/(#)(#)?(#)?(#)?(#)?(#)?/${6:?6:${5:?5:${4:?4:${3:?3:${2:?2:1}}}}}/}

i.e. what does it mean ?

https://github.com/textmate/markdown.tmbundle/blob/7a8ff34351f96d0a2c15b0f6fe1b0c7091fb08a2/Syntaxes/Markdown.tmLanguage#L105

[alexdima]

From your comments at eclipse-tm4e/tm4e#116

• suppose the begin captured ##.
• ${1} is '##'.
• then proceed to match ## against (#)(#)?(#)?(#)?(#)?(#)? and replace with ${6:?6:${5:?5:${4:?4:${3:?3:${2:?2:1}}}}}
  • ${6} through ${3} are '' (empty string)
  • ${2} is '#'
  • so the expression resolves to 2.

whoaaa

[texastoland]

I think this whould vastly simplify @mjbvz's https://github.com/mjbvz/vscode-comment-tagged-templates/blob/master/syntaxes/grammar.json.