--- /dev/null
+filetype: proto
+
+detect:
+ filename: "(\\.(proto)$$)"
+
+rules:
+ - identifier: "\\b[A-Z_][0-9A-Z_]+\\b"
+ - type: "\\b(int(8|16|32|64))|string|bytes|repeated|bool|required|map|optional|oneof|union\\b"
+ - statement: "\\b(import|service|enum|syntax|package|option|message|rpc|returns|extensions|to)\\b"
+ - constant: "'\\\\(([0-3]?[0-7]{1,2}))'"
+ - constant: "'\\\\x[0-9A-Fa-f]{1,2}'"
+ - symbol.brackets: "[(){}]|\\[|\\]"
+ - constant.number: "(\\b[0-9]+\\b|\\b0x[0-9A-Fa-f]+\\b)"
+
+ - constant.string:
+ start: "\""
+ end: "\""
+ skip: "\\\\."
+ rules:
+ - constant.specialChar: "\\\\."
+
+ - constant.string:
+ start: "'"
+ end: "'"
+ skip: "\\\\."
+ rules:
+ - preproc: "..+"
+ - constant.specialChar: "\\\\."
+
+ - comment:
+ start: "//"
+ end: "$"
+ rules:
+ - todo: "(TODO|XXX|FIXME):?"
+
+ - comment:
+ start: "/\\*"
+ end: "\\*/"
+ rules:
+ - todo: "(TODO|XXX|FIXME):?"