R. Bernstein

Pattern Parse Error: f[x:(_..)]

1

From https://github.com/mathics/Mathics/issues/668 ``` foxy-sheep -e 'f[x:(_..)]' line 1:8 no viable alternative at input 'f[x:(_..)' ```

Differentiating between ReplaceAll and Division (Times [ , Power])

2

In https://github.com/mathics/Mathics/issues/989 it was noticed that `1/.2` Is comes out `ReplaceAll[1,2]` rather than `Times[1,Power[.2,-1]]`. The fix there was to add a [lookahead pattern](https://stackoverflow.com/questions/2973436/regex-lookahead-lookbehind-and-atomic-groups) for a number to distinguish these. ANTLR4...

Parse ? and ??

1

Shouldn't these get converted to `Information[]`?

These more recent additions are used in Rules and Graphs. From https://github.com/Mathics3/mathicsscript/pull/2 >> I am guessing this was a more recent addition so that's why there aren't in the otherwise...

I am not a designer so feel free to adjust the colors.

I don't consider myself a style designer so I take no offense if you wan to change the colors.

Please fill in this template: - [x] Use a meaningful title for the pull request. Include the name of the resource added. - [x] Add a short sentence on why...

Document optimizations performed

8

What kinds of optimization are performed? When were they introduced? Examples of optimizations.

Will probably require building older versions of Emacs

Many opcodes are Emacs Lisp functions. Perhaps we should link back into the texinfo for those.