NewSetsPrinting.Mesa
Last tweaked by Mike Spreitzer on December 12, 1987 4:57:42 pm PST
DIRECTORY AMBridge, AMTypes, BiRels, IntStuff, IO, PrintTV, Process, Rope, SetBasics, AbSets, StructuredStreams;
NewSetsPrinting: CEDAR PROGRAM
IMPORTS AMBridge, AMTypes, BiRels, IntStuff, IO, PrintTV, Process, Rope, AbSets, StructuredStreams
=
BEGIN OPEN IntStuff, SetBasics, Sets:AbSets, Sets, BiRels, SS:StructuredStreams;
ROPE: TYPE ~ Rope.ROPE;
TV: TYPE ~ AMTypes.TV;
Type: TYPE ~ AMTypes.Type;
MutabilityName: ARRAY Mutability OF ROPE ~ [
constant: "const",
variable: "var",
readonly: "r.o."];
PrintSet: PROC [tv: TV, data: REF ANY, stream: IO.STREAM, depth: INT ← 4, width: INT ← 32, verbose: BOOLFALSE] RETURNS [useOld: BOOLFALSE] --PrintTV.TVPrintProc-- ~ TRUSTED {
OPEN Sets;
setTV: TV ~ UnWrap[tv];
classTV: TV ~ AMTypes.IndexToTV[setTV, 1];
dataTV: TV ~ AMTypes.IndexToTV[setTV, 2];
set: Set ~ [NARROW[AMBridge.TVToRef[classTV]], TVToValue[dataTV]];
IF set.class=NIL THEN {
stream.PutRope[IF set.data#nilSet.data THEN "{broken set}" ELSE SELECT data FROM
NIL => "AbSets.nilSet",
$Var => "AbSets.nilVarSet",
$UW => "AbSets.nilUWSet",
$Const => "AbSets.nilConstSet",
ENDCASE => ERROR];
RETURN};
stream.PutRope["{"];
{ENABLE Cant => {stream.PutRope[" -- set printing fumbled"]; CONTINUE};
canFilter: BOOL ~ set.QualityOf[$HasMember] >= goodDefault;
canScan: BOOL ~ set.QualityOf[$Scan] >= goodDefault;
stream.PutF["%g %g",
[rope[MutabilityName[set.MutabilityOf[]]]],
[rope[IF canFilter
THEN IF canScan
THEN "set"
ELSE "filter"
ELSE IF canScan
THEN "enumerator"
ELSE "dimwit"]]];
IF verbose OR depth >= 2 THEN {
canSize: BOOL ~ set.QualityOf[$Size] >= goodDefault;
size: EINT ~ IF canSize THEN set.Size[] ELSE lastEINT;
space: Space ~ set.SpaceOf[];
IF canSize THEN {
stream.PutRope[","];
SS.Bp[stream, lookLeft, 3, " "];
stream.PutRope["size="];
stream.PutRope[size.ToRope];
};
stream.PutRope[","];
SS.Bp[stream, lookLeft, 3, " "];
stream.PutRope[Rope.Cat["space=", space.name]];
IF canScan AND depth >= 3 THEN {
first: BOOLTRUE;
n: LNAT ← 0;
PrintElt: PROC [val: Value] RETURNS [pass: BOOLFALSE] ~ TRUSTED {
eltTV: TV ~ ValueToTV[val];
Process.CheckForAbort[];
IF first
THEN {first ← FALSE; SS.Bp[stream, lookLeft, 3]}
ELSE {stream.PutRope[","]; SS.Bp[stream, lookLeft, 3, " "]};
SS.Begin[stream];
{ENABLE UNWIND => SS.End[stream];
IF (pass ← (n ← n+1) > width)
THEN stream.PutRope["..."]
ELSE PrintTV.Print[tv: eltTV, put: stream, depth: depth-1, width: width];
};
SS.End[stream];
RETURN};
stream.PutRope[","];
SS.Bp[stream, lookLeft, 3, " "];
stream.PutRope["elts: "];
[] ← set.Scan[PrintElt];
};
};
};
stream.PutRope["}"];
RETURN};
PrintBiRel: PROC [tv: TV, data: REF ANY, stream: IO.STREAM, depth: INT ← 4, width: INT ← 32, verbose: BOOLFALSE] RETURNS [useOld: BOOLFALSE] --PrintTV.TVPrintProc-- ~ TRUSTED {
biRelTV: TV ~ UnWrap[tv];
classTV: TV ~ AMTypes.IndexToTV[biRelTV, 1];
dataTV: TV ~ AMTypes.IndexToTV[biRelTV, 2];
br: BiRel ~ [NARROW[AMBridge.TVToRef[classTV]], NARROW[AMBridge.TVToRef[dataTV]]];
IF br.class=NIL THEN {
stream.PutRope[IF br.data#nilBiRel.data THEN "{broken BiRel}" ELSE SELECT data FROM
NIL => "BiRels.nilBiRel",
$Var => "[BiRels.nilBiRel]",
$UW => "[BiRels.nilBiRel]",
$Const => "[[BiRels.nilBiRel]]",
ENDCASE => ERROR];
RETURN};
stream.PutRope["{"];
{ENABLE Cant => {stream.PutRope[" -- binary relation printing fumbled"]; CONTINUE};
canFilter: BOOL ~ br.QualityOf[$HasPair] >= goodDefault;
canScan: BOOL ~ br.QualityOf[$Scan] >= goodDefault;
functional: BoolPair ~ br.Functional;
type: ROPE ~ IF functional[leftToRight]
THEN IF functional[rightToLeft] THEN "injection" ELSE "function"
ELSE IF functional[rightToLeft] THEN "inv-function" ELSE "relation";
stream.PutF["%g %g%g",
[rope[MutabilityName[br.MutabilityOf[]]]],
[rope[type]],
[rope[IF canFilter
THEN IF canScan
THEN ""
ELSE " filter"
ELSE IF canScan
THEN " enumerator"
ELSE " dimwit"]]];
IF verbose OR depth >= 2 THEN {
canSize: BOOL ~ br.QualityOf[$Size] >= goodDefault;
size: EINT ~ IF canSize THEN br.Size[] ELSE lastEINT;
spaces: SpacePair ~ br.Spaces[];
IF canSize THEN {
stream.PutRope[","];
SS.Bp[stream, lookLeft, 3, " "];
stream.PutRope["size="];
stream.PutRope[size.ToRope];
};
stream.PutRope[","];
SS.Bp[stream, lookLeft, 3, " "];
stream.PutRope[Rope.Cat["spaces=[", spaces[left].name, ", ", spaces[right].name, "]"]];
IF canScan AND depth >= 3 THEN {
first: BOOLTRUE;
n: LNAT ← 0;
PrintElt: PROC [elt: Pair] RETURNS [pass: BOOLFALSE] ~ TRUSTED {
IF first
THEN {first ← FALSE; SS.Bp[stream, lookLeft, 3]}
ELSE {stream.PutRope[","]; SS.Bp[stream, lookLeft, 3, " "]};
SS.Begin[stream];
{ENABLE UNWIND => SS.End[stream];
IF (pass ← (n ← n+1) > width)
THEN stream.PutRope["..."]
ELSE {
PrintTV.Print[tv: ValueToTV[elt[left]], put: stream, depth: depth-2, width: width];
stream.PutRope[" *"];
SS.Bp[stream, lookLeft, 3, " "];
PrintTV.Print[tv: ValueToTV[elt[right]], put: stream, depth: depth-2, width: width];
};
};
SS.End[stream];
RETURN};
stream.PutRope[","];
SS.Bp[stream, lookLeft, 3, " "];
stream.PutRope["elts: "];
[] ← br.Scan[PrintElt];
};
};
};
stream.PutRope["}"];
RETURN};
ValueToTV: PROC [v: Value] RETURNS [TV] ~ TRUSTED {
WITH v SELECT FROM
x: RefAnyValue => RETURN AMBridge.TVForReferent[NEW [REF ANY ← x.a], const];
x: IntValue => RETURN AMBridge.TVForReferent[NEW [INT ← x.i], const];
x: NotAValue => ERROR;
ENDCASE => ERROR};
TVToValue: PROC [tv: TV] RETURNS [Value] ~ TRUSTED {
union: TV ~ AMTypes.IndexToTV[tv, 1];
tag: TV ~ AMTypes.Tag[union];
bound: TV ~ AMTypes.Variant[union];
it: TV ~ AMTypes.IndexToTV[bound, 1];
SELECT AMBridge.TVToCardinal[tag] FROM
ORD[SetBasics.ValueKind[no]] => RETURN [[no[AMBridge.TVToLI[it]]]];
ORD[SetBasics.ValueKind[a]] => RETURN [[a[AMBridge.TVToRef[it]]]];
ORD[SetBasics.ValueKind[i]] => RETURN [[i[AMBridge.TVToLI[it]]]];
ENDCASE => ERROR;
};
UnWrap: PROC [tv: TV] RETURNS [inner: TV] ~ {
inner ← tv;
DO
SELECT AMTypes.NComponents[AMTypes.TVType[inner]] FROM
1 => inner ← AMTypes.IndexToTV[inner, 1];
2 => EXIT;
ENDCASE => ERROR;
ENDLOOP;
RETURN};
Start: PROC ~ {
PrintTV.RegisterTVPrintProc[CODE[Set], PrintSet];
PrintTV.RegisterTVPrintProc[CODE[VarSet], PrintSet, $Var];
PrintTV.RegisterTVPrintProc[CODE[UWSet], PrintSet, $UW];
PrintTV.RegisterTVPrintProc[CODE[ConstSet], PrintSet, $Const];
PrintTV.RegisterTVPrintProc[CODE[BiRel], PrintBiRel];
PrintTV.RegisterTVPrintProc[CODE[VarBiRel], PrintBiRel, $Var];
PrintTV.RegisterTVPrintProc[CODE[UWBiRel], PrintBiRel, $UW];
PrintTV.RegisterTVPrintProc[CODE[ConstBiRel], PrintBiRel, $Const];
};
Start[];
END.