Macro Woes Tracking Issue

[iwillspeak]

The current syntax-rules implementation generally works, but leaves a little to be desired. Namely:

• No support for quoting of the ellipsis character (... ...)
• Matching of patterns with ... and . should be greedier with the repeat? Not sure about this one.
• What if the ellipsis is also a literal identifier?
• Macro hygiene
  • Identifier hygiene
  • Scope hygiene
• Missing location on expanded templates.
• Substitutions inside quoted templates.
• Vector patterns and templates (#(<pattern>+)).
• Macros are not included in compiled libraries.
• Re-export of macro items.

[iwillspeak]

Another thing here is we parse templates and patterns with the same code. Templates can have arbitrary repeats. Patterns only one per form.