/usr/share/source-highlight/prolog.lang is in libsource-highlight-common 3.1.8-1.2.
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 32 33 34 35 36 37 | preproc = "bgidriver|bgifont|check_determ|code|config|diagnostics|error|errorlevel|heap|gstacksize|nobreak|nowarnings|printermenu|project"
comment start "%"
include "number.lang"
string delim "\"" "\"" escape "\\"
string delim "'" "'" escape "\\"
keyword = "abstract|align|as|and|class|clauses|constants|database|determ",
"domains|elsedef|endclass|enddef|erroneous|facts|failure|global",
"goal|if|ifdef|ifndef|implement|include|language|multi|nocopy",
"nondeterm|object|or|procedure|protected|predicates|reference",
"single|static|struct|this",
"ABSTRACT|ALIGN|AS|AND|CLASS|CLAUSES|CONSTANTS|DATABASE|DETERM",
"DOMAINS|ELSEDEF|ENDCLASS|ENDDEF|ERRONEOUS|FACTS|FAILURE|GLOBAL",
"GOAL|IF|IFDEF|IFNDEF|IMPLEMENT|INCLUDE|LANGUAGE|MULTI|NOCOPY",
"NONDETERM|OBJECT|OR|PROCEDURE|PROTECTED|PREDICATES|REFERENCE",
"SINGLE|STATIC|STRUCT|THIS",
"assert|asserta|assertz|bound|chain_inserta|chain_insertafter",
"chain_insertz|chain_terms|consult|db_btrees|db_chains|fail",
"findall|format|free|msgrecv|msgsend|nl|not|readterm|ref_term|retract",
"retractall|save|term_bin|term_replace|term_str|trap|write|writef",
"mod|div|abs|exp|ln|log|sqrt|round|trunc|val|cos|sin|tan|arctan",
"random|randominit"
comment delim "/*" "*/" multiline nested
type = "char|real|string|symbol|byte|sbyte|short|ushort|word|integer|unsigned|dword|long|ulong|binary|ref"
include "symbols.lang"
cbracket = "{|}"
include "function.lang"
variable = '[[:upper:]][[:word:]]*|_'
|