// n from beginning to m from end.
func (mt *MtType) EvalExpr(Context *eval.ContextType, n, m int) bool {
m = len(mt.SVal) - m // Convert to Pos
sv := mt.SVal[n:m] // Slice of params to eval.
fmt.Printf("mt.EvalExpr - TOP: ealuate sv=%+v ----------------------------------------------------- \n", sv)
fmt.Printf("mt.EvalExpr - TOP: ealuate mt.SVal=%+v ----------------------------------------------------- \n", mt.SVal)
// xyzzy -- temporary -- incomplete!!!!!!!!!!!!!!!!!!!!!!
evalData := &eval.EvalType{
Pos: 0,
Ctx: Context,
Mm: mt.TokVal[n:m], // []tok.Token
}
fmt.Printf("INPUT m=%d n=%d, %s ----------------------------------------------------- \n", m, n, com.SVarI(evalData))
tr := evalData.Pres2()
fmt.Printf("BOTTOM: %s ----------------------------------------------------- \n", com.SVarI(tr))
s := sv[0]
v, t, _ := Context.GetFromContext(s)
fmt.Printf("At: %s - in EvalExpr, v=%v t=%v for >%s<-\n", com.LF(), v, t, s)
// xyzzy nil, 9 -- 9 is error, not found
if t == eval.CtxType_Bool {
fmt.Printf("Setting bool to true\n")
mt.DataType = t
mt.XValue = v
}
return true
}
// -------------------------------------------------------------------------------------------------------------------------------------------------------------------------
func FxGet_context(callNo int, pt *Parse2Type, Context *eval.ContextType, curTree *MtType) (err error) {
fmt.Printf("GetContext Called, %d\n", callNo)
if callNo == 10 {
if !curTree.NOptions(1) {
} else {
id := curTree.SVal[0] // xyzzy - should be an EvalExpr of ...
val, typ, fnd := Context.GetFromContext(id)
if fnd {
fmt.Printf("Found! id=%s typ=%d = ->%s<-\n", id, typ, val)
if typ == eval.CtxType_Bool { // xyzzy - other types ...
if val.(bool) {
curTree.HTML_Output = "true"
} else {
curTree.HTML_Output = "false"
}
}
} else {
fmt.Printf("Not Found %s\n", id)
curTree.HTML_Output = ""
}
}
}
return
}