wip

3 files changed, 206 insertions, 0 deletions

diff --git a/ip/ip.pl b/ip/ip.pl
new file mode 100644
index 0000000..ba37602
--- /dev/null
+++ b/ip/ip.pl
@@ -0,0 +1,86 @@
+% vim: syntax=prolog
+
+:- use_module(library(clpz)).
+:- use_module(library(format)).
+:- use_module(library(charsio)).
+:- use_module(library(serialization/abnf)).
+
+make_ip4(A, B, C, D, ip4(A, B, C, D, Addr)) :-
+  Addr #= (A * 2^24 + B * 2^16 + C * 2^8 + D).
+
+ip4(A, B, C, D, Addr) :-
+  A in 0..255,
+  B in 0..255,
+  C in 0..255,
+  D in 0..255,
+  Addr #= (A * 2^24 + B * 2^16 + C * 2^8 + D).
+
+ip4_range(ip4(_, _, _, _), Range) :-
+  Range in 0..32.
+
+ip_format(ip4(A, B, C, D, _), Str) :-
+  phrase(format_("~w.~w.~w.~w", [A, B, C, D]), Str).
+
+ip_format(ip4_range(ip4(A, B, C, D, _), Range), Str) :-
+  phrase(format_("~w.~w.~w.~w/~w", [A, B, C, D, Range]), Str).
+
+hexd(D) --> abnf_hexdig(D).
+hexd('a') --> "a".
+hexd('b') --> "b".
+hexd('c') --> "c".
+hexd('d') --> "d".
+hexd('e') --> "e".
+hexd('f') --> "f".
+
+int_(N)    --> abnf_digit(D), { number_chars(V, [D]) }, int_(V, N).
+int_(N, N) --> [].
+int_(A, N) --> abnf_digit(D), { number_chars(V, [D]), A1 is A*10+V }, int_(A1, N).
+
+xint_(N)    --> hexd(D), { number_chars(V, ['0', 'x', D]) }, xint_(V, N).
+xint_(N, N) --> [].
+xint_(A, N) --> hexd(D), { number_chars(V, ['0', 'x', D]), A1 is A*16+V }, xint_(A1, N).
+
+%ip4_num(V) --> int_(Ds, Ds), { number_chars(V, Ds), V >= 0, V =< 255 }.
+ip4_num(V) --> int_(V), { V >= 0, V =< 255 }.
+
+ip4_syntax(A, B, C, D) --> ip4_num(A), ".", ip4_num(B), ".", ip4_num(C), ".", ip4_num(D).
+ip4_range_syntax(A, B, C, D, R) -->
+  ip4_syntax(A, B, C, D), "/", 
+  int_(R), { R >= 0, R =< 32 }.
+
+ip4_parse(Str, Obj) :-
+  phrase(ip4_syntax(A, B, C, D), Str),
+  Obj = ip4(A, B, C, D).
+
+ip4_range_parse(Str, Obj) :-
+  phrase(ip4_range_syntax(A, B, C, D, Range), Str),
+  make_ip4(A, B, C, D, Ip),
+  Obj = ip4_range(Ip, Range).
+
+ip6_syntax(A, B, C, D, E, F, G, H) -->
+  ip6_num(A), ":",
+  ip6_num(B), ":",
+  ip6_num(C), ":",
+  ip6_num(D), ":",
+  ip6_num(E), ":",
+  ip6_num(F), ":",
+  ip6_num(G), ":",
+  ip6_num(H).
+ip6_num(D) --> xint_(D), { D >= 0, D =< 65535 }.
+
+ip6_parse(Str, Obj) :-
+  phrase(ip6_syntax(A, B, C, D, E, F, G, H), Str),
+  Obj = ip6(A, B, C, D, E, F, G, H).
+
+ip_parse(Str, Obj) :-
+  (
+    phrase(ip4_syntax(A, B, C, D), Str)
+    -> Obj = ip4(A, B, C, D)
+    ; (
+        phrase(ip4_range_syntax(A, B, C, D, R), Str)
+        -> make_ip4(A, B, C, D, Ip),
+           Obj = ip4_range(Ip, R)
+        ;  phrase(ip6_syntax(A, B, C, D, E, F, G, H), Str),
+           Obj = ip6(A, B, C, D, E, F, G, H)
+      )
+  ).
diff --git a/ip/ip_test.pl b/ip/ip_test.pl
new file mode 100644
index 0000000..39a0abb
--- /dev/null
+++ b/ip/ip_test.pl
@@ -0,0 +1,120 @@
+% vim: syntax=prolog
+
+:- use_module(library(clpz)).
+:- use_module(library(format)).
+
+test("ip4", (
+  ip4(127, 0, 0, 1, A),
+  A =:= (127 * 2**24 + 1)
+  )).
+
+test("ip_format", (
+  ip_format(ip4(127, 0, 0, 1, _), Str),
+  Str == "127.0.0.1"
+  )).
+
+test("ip_format #2", (
+  Ip = ip4_range(ip4(192, 168, 0, 0, _), 24),
+  ip_format(Ip, Str),
+  Str == "192.168.0.0/24"
+  )).
+
+test("ip4_parse #1", (
+  ip4_parse("1.2.3.4", Ip),
+  Ip == ip4(1, 2, 3, 4)
+  )).
+
+test("ip4_range_parse", (
+  ip4_range_parse("1.2.3.4/24", Ip),
+  A #= 2^24 + 2 * 2^16 + 3 * 2^8 + 4,
+  Ip == ip4_range(ip4(1, 2, 3, 4, A), 24)
+  )).
+
+test("ip6_parse", (
+  ip6_parse("1:2:3:4:5:6:a:b", Ip),
+  Ip == ip6(1, 2, 3, 4, 5, 6, 10, 11)
+  )).
+
+test("ip6_parse #2", (
+  ip6_parse("0:2:3:4:5:6:a:b", Ip),
+  Ip == ip6(0, 2, 3, 4, 5, 6, 10, 11)
+  )).
+
+test("ip_parse #1", (
+  ip_parse("127.0.0.1", Ip),
+  Ip == ip4(127, 0, 0, 1)
+  )).
+
+test("ip_parse #2", (
+  ip_parse("192.168.10.4/24", R),
+  make_ip4(192, 168, 10, 4, Ip),
+  R == ip4_range(Ip, 24)
+  )).
+
+test("ip_parse #3", (
+  ip_parse("0:2:3:4:5:6:a:b", Ip),
+  Ip == ip6(0, 2, 3, 4, 5, 6, 10, 11)
+  )).
+
+main :-
+    consult(ip),
+    findall(test(Name, Goal), test(Name, Goal), Tests),
+    run_tests(Tests, Failed),
+    show_failed(Failed),
+    halt.
+
+main_quiet :-
+    consult(ip),
+    findall(test(Name, Goal), test(Name, Goal), Tests),
+    run_tests_quiet(Tests, Failed),
+    (   Failed = [] ->
+        format("All tests passed", [])
+    ;   format("Some tests failed", [])
+    ),
+    halt.
+
+portray_failed_([]) --> [].
+portray_failed_([F|Fs]) -->
+    "\"", F, "\"",  "\n", portray_failed_(Fs).
+
+portray_failed([]) --> [].
+portray_failed([F|Fs]) -->
+    "\n", "Failed tests:", "\n", portray_failed_([F|Fs]).
+
+show_failed(Failed) :-
+    phrase(portray_failed(Failed), F),
+    format("~s", [F]).
+
+run_tests([], []).
+run_tests([test(Name, Goal)|Tests], Failed) :-
+    format("Running test \"~s\"~n", [Name]),
+    (   call(Goal) ->
+        Failed = Failed1
+    ;   format("Failed test \"~s\"~n", [Name]),
+        Failed = [Name|Failed1]
+    ),
+    run_tests(Tests, Failed1).
+
+run_tests_quiet([], []).
+run_tests_quiet([test(Name, Goal)|Tests], Failed) :-
+    (   call(Goal) ->
+        Failed = Failed1
+    ;   Failed = [Name|Failed1]
+    ),
+    run_tests_quiet(Tests, Failed1).
+
+assert_p(A, B) :-
+    phrase(portray_clause_(A), Portrayed),
+    phrase((B, ".\n"), Portrayed).
+
+call_residual_goals(Goal, ResidualGoals) :-
+    call_residue_vars(Goal, Vars),
+    variables_residual_goals(Vars, ResidualGoals).
+
+variables_residual_goals(Vars, Goals) :-
+    phrase(variables_residual_goals(Vars), Goals).
+
+variables_residual_goals([]) --> [].
+variables_residual_goals([Var|Vars]) -->
+    dif:attribute_goals(Var),
+    variables_residual_goals(Vars).
diff --git a/ip/test.pl b/ip/test.pl
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/ip/test.pl