1 files changed, 93 insertions, 0 deletions
diff --git a/private_dot_config/nvim/after/syntax/antlr4.vim b/private_dot_config/nvim/after/syntax/antlr4.vim
new file mode 100644
index 0000000..8f6c412
--- /dev/null
+++ b/private_dot_config/nvim/after/syntax/antlr4.vim
@@ -0,0 +1,93 @@
+if exists('b:current_syntax')
+    finish
+endif
+
+command -nargs=* HiLink highlight link <args>
+
+syntax match antlr4EventId      +[a-zA-Z_][a-zA-Z0-9_]*+ contained
+syntax match antlr4ParName      +\<[a-z][a-zA-Z0-9_]*\>+ containedin=antlr4RHS
+syntax match antlr4LexName      +\<[A-Z][a-zA-Z0-9_]*\>+ containedin=antlr4RHS
+syntax match antlr4Assign       /[a-zA-Z]\++\?=/         containedin=antlr4RHS
+
+if exists('g:antlr4_highlight_punctuation')
+    syntax match antlr4Punctuation     +[\-():;]+
+endif
+
+syntax include @included syntax/java.vim
+
+syntax region antlr4RHS     start=+:+   end=+;+ extend
+
+syntax region antlr4Embed   start=+{+   end=+}?\?+ contains=@included,antlr4Variable keepend
+    \ containedin=antlr4RHS
+syntax region antlr4Embed   start=+\[+  end=+\]+   contains=@included,antlr4Variable keepend
+
+
+syntax match antlr4Repeat       +[+*]+      containedin=antlr4RHS
+syntax match antlr4Condition    +?+         containedin=antlr4RHS
+syntax match antlr4Option       "|"         containedin=antlr4RHS
+
+" Use specifically containedin=javaParenT so it will be highlighted inside
+" parens
+syntax match antlr4Variable  contained   +\$[a-zA-Z_][a-zA-Z0-9_]*+ containedin=javaParenT
+
+syntax match antlr4Keyword      /@\(\(parser\|lexer\)::\)\?\(header\|members\)/
+syntax match antlr4Keyword      /@after/
+
+syntax match antlr4Escape       +\\[nrvt]+
+syntax match antlr4Escape       +\\u[0-9a-fA-F]\{4}+
+syntax match antlr4Escape       +\\u{[0-9a-fA-F]\{4}}+
+syntax match antlr4Escape       +\\p{.\{-}}+
+
+syntax match antlr4SetEscape    +\\-+       containedin=antlr4RHS
+
+syntax keyword antlr4Keyword grammar
+syntax keyword antlr4Keyword lexer parser options
+syntax keyword antlr4Keyword fragment tokens
+syntax keyword antlr4Keyword returns locals throws catch finally mode options
+
+syntax keyword antlr4Import import
+
+syntax keyword antlr4Operation skip more popMode mode pushMode type channel
+    \ containedin=antlr4RHS
+
+syntax region antlr4Set     start=+\[+  end=+\]+ contained
+    \ contains=antlr4Escape,antlr4SetEscape containedin=antlr4RHS
+syntax region antlr4Attr    start="<"   end=">"
+    \ containedin=antlr4RHS
+syntax region antlr4String  start=+'+   end=+'+ containedin=antlr4RHS contains=antlr4Escape
+
+syntax region antlr4Comment start=+/\*+ end=+\*/+
+    \ containedin=antlr4RHS
+syntax region antlr4Comment start=+//+  end=+$+
+    \ containedin=antlr4RHS
+
+syntax region antlr4Event   start=+#+   end=+$+
+    \ containedin=antlr4RHS contains=antlr4EventId
+
+HiLink antlr4Comment        Comment
+HiLink antlr4Keyword        KeyWord
+HiLink antlr4ParName        Type
+HiLink antlr4LexName        Macro
+HiLink antlr4Attr           Special
+HiLink antlr4Assign         Statement
+HiLink antlr4Set            Character
+HiLink antlr4String         String
+
+if exists('g:antlr4_highlight_punctuation')
+    HiLink antlr4Punctuation    Operator
+endif
+
+HiLink antlr4Repeat         Repeat
+HiLink antlr4Condition      Conditional
+HiLink antlr4Option         Delimiter
+HiLink antlr4Import         PreProc
+HiLink antlr4Escape         Special
+HiLink antlr4SetEscape      antlr4Escape
+HiLink antlr4Operation      Function
+HiLink antlr4EventId        Function
+HiLink antlr4Annotation     KeyWord
+HiLink antlr4Variable       Special
+
+delcommand HiLink
+
+let b:current_syntax = 'antlr4'