feat: Support conversion from and to string and boolean

conversion.go

@@ -6,7 +6,10 @@
 package safecast
 
 import (
+	"fmt"
 	"math"
+	"strconv"
+	"strings"
 )
 
 func Convert[NumOut Number](orig any) (converted NumOut, err error) {
@@ -35,6 +38,13 @@ func Convert[NumOut Number](orig any) (converted NumOut, err error) {
 		return convertFromNumber[NumOut](v)
 	case float64:
 		return convertFromNumber[NumOut](v)
+	case bool:
+		if v {
+			return NumOut(1), nil
+		}
+		return NumOut(0), nil
+	case string:
+		return convertFromString[NumOut](v)
 	}
 
 	return 0, ErrConversionIssue
@@ -88,6 +98,40 @@ func convertFromNumber[NumOut Number, NumIn Number](orig NumIn) (converted NumOu
 	}
 }
 
+func convertFromString[NumOut Number](s string) (converted NumOut, err error) {
+	s = strings.TrimSpace(s)
+
+	if b, err := strconv.ParseBool(s); err == nil {
+		if b {
+			return NumOut(1), nil
+		}
+		return NumOut(0), nil
+	}
+
+	if strings.Contains(s, ".") {
+		o, err := strconv.ParseFloat(s, 64)
+		if err != nil {
+			return 0, fmt.Errorf("%w: cannot convert %v to %T", ErrConversionIssue, s, converted)
+		}
+		return convertFromNumber[NumOut](o)
+	}
+
+	if s, found := strings.CutPrefix(s, "-"); found {
+		o, err := strconv.ParseInt(s, 0, 64)
+		if err != nil || o < 0 {
+			return 0, fmt.Errorf("%w: cannot convert %v to %T", ErrConversionIssue, s, converted)
+		}
+
+		return convertFromNumber[NumOut](-o)
+	}
+
+	o, err := strconv.ParseUint(s, 0, 64)
+	if err != nil {
+		return 0, fmt.Errorf("%w: cannot convert %v to %T", ErrConversionIssue, s, converted)
+	}
+	return convertFromNumber[NumOut](o)
+}
+
 // ToInt attempts to convert any [Type] value to an int.
 // If the conversion results in a value outside the range of an int,
 // an [ErrConversionIssue] error is returned.