GrammarKit is a plugin by JetBrains for creating custom language plugins
for JetBrains IDEs (such as IntelliJ, RubyMine, CLion and more). It
defines a BNF parser language which can be used to generate a parser in
Java, and it also integrates JFLex for generating a lexer in Java.
Both of these generated Java files can be recognised by a comment on the
first line of the file, and so classifying them as generated is trivial.
TLDR: This greatly increases the flexibility of vim modeline detection
to manually set the language of a file.
In vim there are two forms of modelines:
[text]{white}{vi:|vim:|ex:}[white]{options}
examples: 'vim: syntax=perl', 'ex: filetype=ruby'
-and-
[text]{white}{vi:|vim:|Vim:|ex:}[white]se[t] {options}:[text]
examples: 'vim set syntax=perl:', 'Vim: se ft=ruby:'
As you can see, there are many combinations. These changes should allow
most combinations to be used. The two most important additions are the
use of the keyword 'syntax', as well as the addition of the first form
(you now no longer need to use the keyword 'set' with a colon at the end).
The use of first form with 'syntax' is very, very common across GitHub:
https://github.com/search?l=ruby&q=vim%3A+syntax%3D&ref=searchresults&type=Code&utf8=%E2%9C%93
plus a few minor language support updates including:
- recognize `sclang` and `scsynth` interpreters
- set `tm_scope: source.supercollider`
- reorder extensions so that `.sc` is primary
This changeset includes a sample racc file from [this auto-generated
file](44e9bf0440/lib/rjson/parser.rb)
(MIT-licensed).
[Racc](https://github.com/tenderlove/racc) Racc is an LALR(1) parser
generator. It is written in Ruby itself, and generates ruby programs.
This change allows the filetype/language to be retrieved from more complex vim modelines. The current regex strictly allows a set line which contains only the filetype/ft parameter and nothing else
Makes it possible to detect the language of a snippet of code
without having an actual file on disk
Will allow github-markup to use Linguist without restricting its API
