feat: ast expr version 1

@@ -86,7 +86,7 @@ func (a *AST) parseFunCallerOrConst() ExprAST {
 	// call func
 	if a.currTok.Tok == "(" {
 		f := FunCallerExprAST{}
-		if _, ok := defFunc[name]; !ok {
+		if _, ok := defFunc[strings.ToLower(name)]; !ok {
 			a.Err = errors.New(
 				fmt.Sprintf("function `%s` is undefined\n%s",
 					name,
@@ -107,7 +107,7 @@ func (a *AST) parseFunCallerOrConst() ExprAST {
 				exprs = append(exprs, a.ParseExpression())
 			}
 		}
-		def := defFunc[name]
+		def := defFunc[strings.ToLower(name)]
 		if def.argc >= 0 && len(exprs) != def.argc {
 			a.Err = errors.New(
 				fmt.Sprintf("wrong way calling function `%s`, parameters want %d but get %d\n%s",
@@ -117,8 +117,7 @@ func (a *AST) parseFunCallerOrConst() ExprAST {
 					ErrPos(a.source, a.currTok.Offset)))
 		}
 		a.getNextToken()
-		f.Name = name
-		f.Args = exprs
+		f = NewFunCallerExprAST(name, exprs...)
 		return f
 	}
 	// call const
@@ -129,9 +128,7 @@ func (a *AST) parseFunCallerOrConst() ExprAST {
 		}
 	} else {
 		if strings.Contains(name, ".") {
-			return FieldExprAST{
-				Str: name,
-			}
+			return NewFieldExprAST(name)
 		}
 		a.Err = errors.New(
 			fmt.Sprintf("const `%s` is undefined\n%s",
@@ -148,9 +145,7 @@ func (a *AST) parsePrimary() ExprAST {
 	case Literal:
 		return a.parseNumber()
 	case StringArgs:
-		e := ValueExprAST{
-			Str: a.currTok.Tok,
-		}
+		e := NewValueExprAST(a.currTok.Tok)
 		a.getNextToken()
 		return e
 	case Operator:
@@ -182,11 +177,7 @@ func (a *AST) parsePrimary() ExprAST {
 						ErrPos(a.source, a.currTok.Offset)))
 				return nil
 			}
-			bin := BinaryExprAST{
-				Op:  "-",
-				Lhs: NumberExprAST{},
-				Rhs: a.parsePrimary(),
-			}
+			bin := NewBinaryExprAST("-", NumberExprAST{}, a.parsePrimary())
 			return bin
 		} else {
 			return a.parseNumber()
@@ -226,10 +217,6 @@ func (a *AST) parseBinOpRHS(execPrec int, lhs ExprAST) ExprAST {
 				return nil
 			}
 		}
-		lhs = BinaryExprAST{
-			Op:  binOp,
-			Lhs: lhs,
-			Rhs: rhs,
-		}
+		lhs = NewBinaryExprAST(binOp, lhs, rhs)
 	}
 }

@@ -11,6 +11,7 @@ const (
 	TypeBinaryExprAST    = "BinaryExprAST"
 	TypeFieldExprAST     = "FieldExprAST"
 	TypeValueExprAST     = "ValueExprAST"
+	TypeNumberExprAST    = "NumberExprAST"
 )
 
 type ExprAST interface {
@@ -18,6 +19,7 @@ type ExprAST interface {
 }
 
 type NumberExprAST struct {
+	ExprType string `json:"exprType"`
 	Val      float64
 	Str      string
 }
@@ -42,7 +44,7 @@ type BinaryExprAST struct {
 }
 
 type FunCallerExprAST struct {
-	ArrayFlag bool      `json:"arrayFlag"`
+	//ArrayFlag bool      `json:"arrayFlag"`
 	ExprType string    `json:"exprType"`
 	Name     string    `json:"name"`
 	Args     []ExprAST `json:"args"`
@@ -86,7 +88,7 @@ func (n FunCallerExprAST) toStr() string {
 }
 
 type CloneFunCallerExprAST struct {
-	ArrayFlag bool              `json:"arrayFlag"`
+	//ArrayFlag bool              `json:"arrayFlag"`
 	Name string            `json:"name"`
 	Arg  []json.RawMessage `json:"args"`
 }

+package astexpr
+
+import (
+	"gitlab.fjmaimaimai.com/allied-creation/character-library-metadata-bastion/pkg/domain"
+	"strconv"
+	"strings"
+)
+
+func NewNumberExprAST(val string) NumberExprAST {
+	num, _ := strconv.ParseFloat(val, 64)
+	return NumberExprAST{
+		ExprType: TypeNumberExprAST,
+		Val:      num,
+		Str:      val,
+	}
+}
+
+func NewValueExprAST(val string) ValueExprAST {
+	return ValueExprAST{
+		ExprType: TypeValueExprAST,
+		Val:      val,
+		Str:      val,
+	}
+}
+
+func NewFieldExprAST(val string) FieldExprAST {
+	words := strings.Split(val, ".")
+	table := words[0]
+	filed := words[0]
+	if len(words) > 0 {
+		filed = words[1]
+	}
+	return FieldExprAST{
+		ExprType: TypeFieldExprAST,
+		Str:      val,
+		Field: &domain.TableField{
+			FieldName: filed,
+			TableName: table,
+		},
+	}
+}
+
+func NewBinaryExprAST(op string, lhs ExprAST, rhs ExprAST) BinaryExprAST {
+	return BinaryExprAST{
+		ExprType: TypeBinaryExprAST,
+		Op:       op,
+		Lhs:      lhs,
+		Rhs:      rhs,
+	}
+}
+
+func NewFunCallerExprAST(name string, args ...ExprAST) FunCallerExprAST {
+	return FunCallerExprAST{
+		ExprType: TypeFunCallerExprAST,
+		Name:     name,
+		Args:     args,
+	}
+}

@@ -94,3 +94,26 @@ func TestAstExprUnmarshalJSON(t *testing.T) {
 		assert.Equal(t, input.data, v)
 	}
 }
+
+func TestAstExprParse(t *testing.T) {
+	funs := []struct {
+		Name string
+		Exp  []string
+	}{
+		{
+			"多级嵌套",
+			[]string{`COUNTIF(销售明细.业绩,"<=1000")-COUNTIF(销售明细.业绩,"<=100")`},
+		},
+	}
+	for _, f := range funs {
+		for _, exp := range f.Exp {
+			r, err := Parse(exp)
+			if err != nil {
+				t.Error(err)
+			}
+			if r != 0 {
+
+			}
+		}
+	}
+}

@@ -138,7 +138,7 @@ func (p *Parser) nextTok() *Token {
 		}
 		tok.Offset = start
 	case '"':
-		for (p.isDigitNum(p.ch) || p.isChar(p.ch)) && p.nextCh() == nil {
+		for (p.isDigitNum(p.ch) || p.isChar(p.ch) || p.isCompareWordChar(p.ch)) && p.nextCh() == nil {
 			if p.ch == '"' {
 				break
 			}