mirror of
https://github.com/unidoc/unioffice.git
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a5ef37c0bc
* evaluation errors fixed * allow underscores in sheet names * allow wildcard in *LOOKUP functions * horizontal and vertical ranges * horizontal and vertical ranges for sheet references * remove redundant recalculate * caching * fixed named ranges, made Evaluator more generic * Memory usage shown in flatten example * temporary file deleted * ParseCellReference duplicate removed * ISREF is fixed
56 lines
1.6 KiB
Go
56 lines
1.6 KiB
Go
// Copyright 2017 FoxyUtils ehf. All rights reserved.
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//
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// Use of this source code is governed by the terms of the Affero GNU General
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// Public License version 3.0 as published by the Free Software Foundation and
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// appearing in the file LICENSE included in the packaging of this file. A
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// commercial license can be purchased on https://unidoc.io.
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package formula
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import (
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"fmt"
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"strings"
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)
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// NamedRangeRef is a reference to a named range.
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type NamedRangeRef struct {
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s string
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}
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// NewNamedRangeRef constructs a new named range reference.
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func NewNamedRangeRef(v string) Expression {
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return NamedRangeRef{v}
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}
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// Eval evaluates and returns the result of the NamedRangeRef reference.
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func (n NamedRangeRef) Eval(ctx Context, ev Evaluator) Result {
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ref := ctx.NamedRange(n.s)
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refValue := ref.Value
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if cached, found := ev.GetFromCache(refValue); found {
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return cached
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}
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sl := strings.Split(refValue, "!")
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if len(sl) != 2 {
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return MakeErrorResult(fmt.Sprintf("unsupported named range value %s", refValue))
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}
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sheetCtx := ctx.Sheet(sl[0])
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sp := strings.Split(sl[1], ":")
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switch len(sp) {
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case 1:
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result := ev.Eval(sheetCtx, sp[0])
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ev.SetCache(refValue, result)
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return result
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case 2:
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// should look like "A2:C5"
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result := resultFromCellRange(sheetCtx, ev, sp[0], sp[1])
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ev.SetCache(refValue, result)
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return result
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}
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return MakeErrorResult(fmt.Sprintf("unsupported reference type %s", ref.Type))
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}
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// Reference returns a string reference value to a named range.
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func (n NamedRangeRef) Reference(ctx Context, ev Evaluator) Reference {
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return Reference{Type: ReferenceTypeNamedRange, Value: n.s}
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}
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