1 files changed, 66 insertions, 0 deletions
diff --git a/appl/alphabet/abc/eval.b b/appl/alphabet/abc/eval.b
new file mode 100644
index 00000000..184aa0fd
--- /dev/null
+++ b/appl/alphabet/abc/eval.b
@@ -0,0 +1,66 @@
+implement Evalabc, Abcmodule;
+include "sys.m";
+	sys: Sys;
+include "draw.m";
+include "sh.m";
+include "alphabet/reports.m";
+	reports: Reports;
+	report, Report: import reports;
+include "alphabet.m";
+include "alphabet/abc.m";
+	abc: Abc;
+	Value: import abc;
+
+Evalabc: module {};
+types(): string
+{
+	return "rAcs*";
+}
+
+init()
+{
+	sys = load Sys Sys->PATH;
+	reports = checkload(load Reports Reports->PATH, Reports->PATH);
+	abc = checkload(load Abc Abc->PATH, Abc->PATH);
+	abc->init();
+}
+
+quit()
+{
+}
+
+run(nil: chan of string, r: ref Reports->Report,
+		nil: list of (int, list of ref Value),
+		args: list of ref Value
+	): ref Value
+{
+	a := (hd args).A().i.alphabet;
+	c := (hd tl args).c().i;
+	vl, rvl: list of ref Alphabet->Value;
+	for(args = tl tl args; args != nil; args = tl args)
+		vl = ref (Alphabet->Value).Vs((hd args).s().i) :: vl;
+	for(; vl != nil; vl = tl vl)
+		rvl = hd vl :: rvl;
+	vc := chan of ref Alphabet->Value;
+	spawn a->eval0(c, "/status", nil, r, r.start("abceval"), rvl, vc);
+	v := <-vc;
+	if(v == nil)
+		return nil;
+	return ref Value.Vr(vr(v).i);
+}
+
+vr(v: ref Alphabet->Value): ref (Alphabet->Value).Vr
+{
+	pick xv := v {
+	Vr =>
+		return xv;
+	}
+	return nil;
+}
+
+checkload[T](m: T, path: string): T
+{
+	if(m != nil)
+		return m;
+	raise sys->sprint("fail:cannot load %s: %r", path);
+}