Support Ruby method names and operator overrides, including Unicode

[kurtmckee]

Fixes #253

This patch contains these changes:

• Add 50+ new Ruby tests for method name/operator override matching.
• Unicode method names are now supported (Ruby: Non-ASCII Method Names Not Recognised #253).
• = method name postfixes are now supported.
• These operator overrides are now supported:
  <, <=, ! !@, ~@, !, !=, !~, =~
• The <> "operator" override is removed. It appears that this was
  a typo in the regular expression (<=?> should have been <=>?).

Syntax verified with https://docs.ruby-lang.org/en/2.7.0/syntax/methods_rdoc.html

[kurtmckee]

I needed to use the \u Unicode escapes, so the r prefix wasn't desirable on that line...and then I overlooked standardizing the rest of the lines. Is it acceptable to remove the r prefix from all of the lines in the multi-line string literal block?

…

On September 4, 2020 7:29:01 PM UTC, "Matthäus G. Chajdas" ***@***.***> wrote: @Anteru requested changes on this pull request. > @@ -328,9 +328,13 @@ def intp_string_callback(self, match, ctx): ], 'funcname': [ (r'\(', Punctuation, 'defexpr'), - (r'(?:([a-zA-Z_]\w*)(\.))?' - r'([a-zA-Z_]\w*[!?]?|\*\*?|[-+]@?|' - r'[/%&|^`~]|\[\]=?|<<|>>|<=?>|>=?|===?)', + (r'(?:([a-zA-Z_]\w*)(\.))?' # optional scope name, like "self." + '(' + '[a-zA-Z\u0080-\uffff][a-zA-Z0-9_\u0080-\uffff]*[!?=]?' # method name + '|!=|!~|=~|\\*\\*?|[-+!~]@?|[/%&|^]|<=>|<[<=]?|>[>=]?|===?' # or operator override + r'|\[\]=?' # or element reference/assignment override + '|`' # or the undocumented backtick override Any particular reason for mixing raw and non-raw strings here? I'd prefer to have everything consistent (i.e. `r'...'`) because it makes editing less error prone. -- You are receiving this because you authored the thread. Reply to this email directly or view it on GitHub: #1531 (review)

[Anteru]

Thanks a lot, merged!