mirror of
https://github.com/unidoc/unioffice.git
synced 2025-04-25 13:48:53 +08:00
17a365ee93
We can take advantage of cached formula results that Excel/LibreOffice insert to ensure that our formula results match the expected results.
33 lines
934 B
Go
33 lines
934 B
Go
// Copyright 2017 Baliance. All rights reserved.
|
|
//
|
|
// Use of this source code is governed by the terms of the Affero GNU General
|
|
// Public License version 3.0 as published by the Free Software Foundation and
|
|
// appearing in the file LICENSE included in the packaging of this file. A
|
|
// commercial license can be purchased by contacting sales@baliance.com.
|
|
|
|
package formula
|
|
|
|
import "fmt"
|
|
|
|
// Evaluator is the interface for a formula evaluator. This is needed so we can
|
|
// pass it to the spreadsheet to let it evaluate formula cells before returning
|
|
// the results.
|
|
type Evaluator interface {
|
|
Eval(ctx Context, formula string) Result
|
|
}
|
|
|
|
func NewEvaluator() Evaluator {
|
|
return &defEval{}
|
|
}
|
|
|
|
type defEval struct {
|
|
}
|
|
|
|
func (d *defEval) Eval(ctx Context, formula string) Result {
|
|
expr := ParseString(formula)
|
|
if expr != nil {
|
|
return expr.Eval(ctx, d)
|
|
}
|
|
return MakeErrorResult(fmt.Sprintf("unable to parse formula %s", formula))
|
|
}
|