/usr/share/source-highlight/slang.lang is in libsource-highlight-common 3.1.6-2ubuntu1.
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 | # slang.lang
# written by John E. Davis
# modified by Lorenzo Bettini
include "script_comment.lang"
keyword = "ERROR_BLOCK|EXECUTE_ERROR_BLOCK|EXIT_BLOCK|NULL|__tmp|_for|and",
"break|case|catch|chs|continue|define|do|else|else|exch|finally|for",
"foreach|forever|if|ifnot|loop|mod|mul2|not|or|orelse|pop|private",
"public|return|shl|shr|sign|sqr|static|struct|switch|then|throw|try",
"typedef|using|variable|while|xor"
comment start "%"
string delim "\"" "\"" escape "\\"
string delim "'" "'" escape "\\"
include "number.lang"
symbol = "~","!","^","*","(",")","-","+","=","[",
"]","\\",":",";",",",".","/","&","<",">","\|"
preproc = "require"
include "function.lang"
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