/usr/share/source-highlight/scala.lang is in libsource-highlight-common 3.1.7-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | # written by Dean Wampler
preproc = "import","package"
include "c_comment.lang"
include "number.lang"
include "c_string.lang"
(keyword,normal,classname) = `(\<(?:class|trait))([[:blank:]]+)([$[:alnum:]_]+)`
keyword = "abstract|case|catch|class|def",
"do|else|extends|false|final",
"finally|for|forSome|if|implicit",
"import|lazy|match|new|null",
"object|override|package|private|protected",
"requires|return|sealed|super|this",
"throw|trait|try|true|type",
"val|var|while|with|yield"
keyword = "_|:|=>|=|<-|<:|<%|>:|#|@"
type = "Int|Byte|Boolean|Char|Long|Float|Double|Short|Nil"
include "symbols.lang"
cbracket = "{|}"
vardef FUNCTION = '([[:alpha:]]|_|[[:punct:]])([[:word:]]|[[:punct:]])*(?=[[:blank:]]*\()'
function = $FUNCTION
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