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parser.go
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package einvoice
import (
"encoding/base64"
"io"
"os"
"time"
"github.com/shopspring/decimal"
"github.com/speedata/cxpath"
)
func parseTime(ctx *cxpath.Context, path string) (time.Time, error) {
timestring := ctx.Eval(path).String()
// format := ctx.Eval(path + "/@format").String()
if timestring == "" {
return time.Time{}, nil
}
return time.Parse("20060102", timestring)
}
func parseParty(tradeParty *cxpath.Context) (Party, error) {
adr := Party{}
for id := range tradeParty.Each("ram:ID") {
adr.ID = append(adr.ID, id.String())
}
for gid := range tradeParty.Each("ram:GlobalID") {
scheme := GlobalID{
Scheme: gid.Eval("@schemeID").String(),
ID: gid.String(),
}
adr.GlobalID = append(adr.GlobalID, scheme)
}
adr.Name = tradeParty.Eval("ram:Name").String()
if tradeParty.Eval("count(ram:SpecifiedLegalOrganization) > 0").Bool() {
slo := SpecifiedLegalOrganization{}
slo.ID = tradeParty.Eval("ram:SpecifiedLegalOrganization/ram:ID").String()
slo.Scheme = tradeParty.Eval("ram:SpecifiedLegalOrganization/ram:ID/@schemeID").String()
slo.TradingBusinessName = tradeParty.Eval("ram:SpecifiedLegalOrganization/ram:TradingBusinessName").String()
adr.SpecifiedLegalOrganization = &slo
}
for dtc := range tradeParty.Each("ram:DefinedTradeContact") {
contact := DefinedTradeContact{}
contact.EMail = dtc.Eval("ram:EmailURIUniversalCommunication/ram:URIID").String()
contact.PhoneNumber = dtc.Eval("ram:TelephoneUniversalCommunication/ram:CompleteNumber").String()
contact.PersonName = dtc.Eval("ram:PersonName").String()
adr.DefinedTradeContact = append(adr.DefinedTradeContact, contact)
}
if tradeParty.Eval("count(ram:PostalTradeAddress)").Int() > 0 {
pa := &PostalAddress{
PostcodeCode: tradeParty.Eval("ram:PostalTradeAddress/ram:PostcodeCode").String(),
Line1: tradeParty.Eval("ram:PostalTradeAddress/ram:LineOne").String(),
Line2: tradeParty.Eval("ram:PostalTradeAddress/ram:LineTwo").String(),
Line3: tradeParty.Eval("ram:PostalTradeAddress/ram:LineThree").String(),
City: tradeParty.Eval("ram:PostalTradeAddress/ram:CityName").String(),
CountryID: tradeParty.Eval("ram:PostalTradeAddress/ram:CountryID").String(),
}
adr.PostalAddress = pa
}
adr.FCTaxRegistration = tradeParty.Eval("ram:SpecifiedTaxRegistration/ram:ID[@schemeID='FC']").String()
adr.VATaxRegistration = tradeParty.Eval("ram:SpecifiedTaxRegistration/ram:ID[@schemeID='VA']").String()
return adr, nil
}
func getDecimal(ctx *cxpath.Context, eval string) decimal.Decimal {
a := ctx.Eval(eval).String()
str, _ := decimal.NewFromString(a)
return str
}
func parseCIIApplicableHeaderTradeSettlement(applicableHeaderTradeSettlement *cxpath.Context, inv *Invoice) error {
var err error
inv.InvoiceCurrencyCode = applicableHeaderTradeSettlement.Eval("ram:InvoiceCurrencyCode").String()
// BT-90
inv.CreditorReferenceID = applicableHeaderTradeSettlement.Eval("ram:CreditorReferenceID").String()
// BG-10
if applicableHeaderTradeSettlement.Eval("count(ram:PayeeTradeParty)").Int() > 0 {
ptp, err := parseParty(applicableHeaderTradeSettlement.Eval("ram:PayeeTradeParty"))
if err != nil {
return err
}
inv.PayeeTradeParty = &ptp
}
for pm := range applicableHeaderTradeSettlement.Each("ram:SpecifiedTradeSettlementPaymentMeans") {
// BG-16
bd := PaymentMeans{
TypeCode: pm.Eval("ram:TypeCode").Int(),
Information: pm.Eval("ram:Information").String(),
PayeePartyCreditorFinancialAccountIBAN: pm.Eval("ram:PayeePartyCreditorFinancialAccount/ram:IBANID").String(),
PayeePartyCreditorFinancialAccountName: pm.Eval("ram:PayeePartyCreditorFinancialAccount/ram:AccountName").String(),
PayeePartyCreditorFinancialAccountProprietaryID: pm.Eval("ram:PayeePartyCreditorFinancialAccount/ram:ProprietaryID").String(),
PayeeSpecifiedCreditorFinancialInstitutionBIC: pm.Eval("ram:PayeeSpecifiedCreditorFinancialInstitution/ram:BICID").String(),
PayerPartyDebtorFinancialAccountIBAN: pm.Eval("ram:PayerPartyDebtorFinancialAccount/ram:IBANID").String(),
ApplicableTradeSettlementFinancialCardID: pm.Eval("ram:ApplicableTradeSettlementFinancialCard/ram:ID").String(),
ApplicableTradeSettlementFinancialCardCardholderName: pm.Eval("ram:ApplicableTradeSettlementFinancialCard/ram:CardholderName").String(),
}
inv.PaymentMeans = append(inv.PaymentMeans, bd)
}
for allowanceCharge := range applicableHeaderTradeSettlement.Each("ram:SpecifiedTradeAllowanceCharge") {
ac := AllowanceCharge{
ChargeIndicator: allowanceCharge.Eval("string(ram:ChargeIndicator/udt:Indicator) = 'true'").Bool(),
BasisAmount: getDecimal(allowanceCharge, "ram:BasisAmount"),
ActualAmount: getDecimal(allowanceCharge, "ram:ActualAmount"),
CalculationPercent: getDecimal(allowanceCharge, "ram:CalculationPercent"),
ReasonCode: allowanceCharge.Eval("ram:ReasonCode").Int(),
Reason: allowanceCharge.Eval("ram:Reason").String(),
CategoryTradeTaxType: allowanceCharge.Eval("ram:CategoryTradeTax/ram:TypeCode").String(),
CategoryTradeTaxCategoryCode: allowanceCharge.Eval("ram:CategoryTradeTax/ram:CategoryCode").String(),
CategoryTradeTaxRateApplicablePercent: getDecimal(allowanceCharge, "ram:CategoryTradeTax/ram:RateApplicablePercent"),
}
inv.SpecifiedTradeAllowanceCharge = append(inv.SpecifiedTradeAllowanceCharge, ac)
}
inv.BillingSpecifiedPeriodStart, _ = parseTime(applicableHeaderTradeSettlement, "ram:BillingSpecifiedPeriod/ram:StartDateTime/udt:DateTimeString")
inv.BillingSpecifiedPeriodEnd, _ = parseTime(applicableHeaderTradeSettlement, "ram:BillingSpecifiedPeriod/ram:EndDateTime/udt:DateTimeString")
// ram:SpecifiedTradePaymentTerms
for paymentTerm := range applicableHeaderTradeSettlement.Each("ram:SpecifiedTradePaymentTerms") {
spt := SpecifiedTradePaymentTerms{}
spt.Description = paymentTerm.Eval("ram:Description").String()
spt.DueDate, err = parseTime(paymentTerm, "ram:DueDateDateTime/udt:DateTimeString")
if err != nil {
return err
}
spt.Description = paymentTerm.Eval("ram:Description").String()
spt.DirectDebitMandateID = paymentTerm.Eval("ram:DirectDebitMandateID").String()
inv.SpecifiedTradePaymentTerms = append(inv.SpecifiedTradePaymentTerms, spt)
}
for att := range applicableHeaderTradeSettlement.Each("ram:ApplicableTradeTax") {
if att.Eval("count(ram:CalculatedAmount)").Int() == 0 {
// BR-46 Umsatzsteueraufschlüsselung
// Jede Umsatzsteueraufschlüsselung „VAT BREAKDOWN“ (BG-23) muss den für
// die betreffende Umsatzsteuerkategorie zu entrichtenden Gesamtbetrag
// „VAT category tax amount“ (BT-117) aufweisen.
inv.Violations = append(inv.Violations, SemanticError{Rule: "BR-46", InvFields: []string{"BG-23", "BT-117"}, Text: "CalculatedAmount not set for applicable trade tax"})
}
if att.Eval("count(ram:RateApplicablePercent)").Int() == 0 {
// BR-48 Umsatzsteueraufschlüsselung
// Jede Umsatzsteueraufschlüsselung „VAT BREAKDOWN“ (BG-23) muss einen
// Umsatzsteuersatz gemäß einer Kategorie „VAT category rate“ (BT-119)
// haben. Sofern die Rechnung von der Umsatzsteuer ausgenommen ist, ist
// „0“ zu übermitteln.
inv.Violations = append(inv.Violations, SemanticError{Rule: "BR-48", InvFields: []string{"BG-23", "BT-119"}, Text: "RateApplicablePercent not set for applicable trade tax"})
}
s := TradeTax{}
s.CalculatedAmount = getDecimal(att, "ram:CalculatedAmount")
s.BasisAmount = getDecimal(att, "ram:BasisAmount")
s.Typ = att.Eval("ram:TypeCode").String()
s.ExemptionReason = att.Eval("ram:ExemptionReason").String()
s.CategoryCode = att.Eval("ram:CategoryCode").String()
s.Percent = getDecimal(att, "ram:RateApplicablePercent") // BT-119
inv.TradeTaxes = append(inv.TradeTaxes, s)
}
summation := applicableHeaderTradeSettlement.Eval("ram:SpecifiedTradeSettlementHeaderMonetarySummation")
inv.LineTotal = getDecimal(summation, "ram:LineTotalAmount")
inv.ChargeTotal = getDecimal(summation, "ram:ChargeTotalAmount")
inv.AllowanceTotal = getDecimal(summation, "ram:AllowanceTotalAmount")
inv.TaxBasisTotal = getDecimal(summation, "ram:TaxBasisTotalAmount")
inv.TaxTotalCurrency = summation.Eval("ram:TaxTotalAmount/@currencyID").String()
inv.TaxTotal = getDecimal(summation, "ram:TaxTotalAmount")
inv.GrandTotal = getDecimal(summation, "ram:GrandTotalAmount")
inv.TotalPrepaid = getDecimal(summation, "ram:TotalPrepaidAmount")
inv.DuePayableAmount = getDecimal(summation, "ram:DuePayableAmount")
// BG-3
for refdoc := range applicableHeaderTradeSettlement.Each("ram:InvoiceReferencedDocument") {
rd := ReferencedDocument{}
rd.Date, err = parseTime(refdoc, "ram:FormattedIssueDateTime/qdt:DateTimeString")
if err != nil {
return err
}
rd.ID = refdoc.Eval("ram:IssuerAssignedID").String()
inv.InvoiceReferencedDocument = append(inv.InvoiceReferencedDocument, rd)
}
return nil
}
func parseCIIApplicableHeaderTradeDelivery(applicableHeaderTradeDelivery *cxpath.Context, inv *Invoice) error {
inv.DespatchAdviceReferencedDocument = applicableHeaderTradeDelivery.Eval("ram:DespatchAdviceReferencedDocument").String()
// BT-72
inv.OccurrenceDateTime, _ = parseTime(applicableHeaderTradeDelivery, "ram:ActualDeliverySupplyChainEvent/ram:OccurrenceDateTime/udt:DateTimeString")
if applicableHeaderTradeDelivery.Eval("count(ram:ShipToTradeParty)").Int() > 0 {
st, _ := parseParty(applicableHeaderTradeDelivery.Eval("ram:ShipToTradeParty"))
inv.ShipTo = &st
}
return nil
}
func parseCIIApplicableHeaderTradeAgreement(applicableHeaderTradeAgreement *cxpath.Context, inv *Invoice) error {
inv.BuyerReference = applicableHeaderTradeAgreement.Eval("ram:BuyerReference").String()
// BT-13
inv.BuyerOrderReferencedDocument = applicableHeaderTradeAgreement.Eval("ram:BuyerOrderReferencedDocument/ram:IssuerAssignedID").String() // BT-13
// BT-12
inv.ContractReferencedDocument = applicableHeaderTradeAgreement.Eval("ram:ContractReferencedDocument/ram:IssuerAssignedID").String() // BT-13
inv.Buyer, _ = parseParty(applicableHeaderTradeAgreement.Eval("ram:BuyerTradeParty"))
inv.Seller, _ = parseParty(applicableHeaderTradeAgreement.Eval("ram:SellerTradeParty"))
if applicableHeaderTradeAgreement.Eval("count(ram:SellerTaxRepresentativeTradeParty)").Int() > 0 {
trp, err := parseParty(applicableHeaderTradeAgreement.Eval("ram:SellerTaxRepresentativeTradeParty"))
if err != nil {
return err
}
inv.SellerTaxRepresentativeTradeParty = &trp
}
for additionalDocument := range applicableHeaderTradeAgreement.Each("ram:AdditionalReferencedDocument") {
d := Document{}
d.IssuerAssignedID = additionalDocument.Eval("ram:IssuerAssignedID").String()
encoded := additionalDocument.Eval("ram:AttachmentBinaryObject").String()
if encoded != "" {
data, err := base64.StdEncoding.DecodeString(encoded)
if err != nil {
return err
}
d.AttachmentBinaryObject = data
}
d.AttachmentFilename = additionalDocument.Eval("ram:AttachmentBinaryObject/@filename").String()
d.AttachmentMimeCode = additionalDocument.Eval("ram:AttachmentBinaryObject/@mimeCode").String()
d.Name = additionalDocument.Eval("ram:Name").String()
d.TypeCode = additionalDocument.Eval("ram:TypeCode").String()
d.ReferenceTypeCode = additionalDocument.Eval("ram:ReferenceTypeCode").String()
inv.AdditionalReferencedDocument = append(inv.AdditionalReferencedDocument, d)
}
return nil
}
func parseSepecifiedLineTradeAgreement(specifiedLineTradeAgreement *cxpath.Context, p *InvoiceLine) error {
p.NetPrice = getDecimal(specifiedLineTradeAgreement, "ram:NetPriceProductTradePrice/ram:ChargeAmount")
p.GrossPrice = getDecimal(specifiedLineTradeAgreement, "ram:GrossPriceProductTradePrice/ram:ChargeAmount")
// ZUGFeRD extended has unbound BT-147
for allowanceCharge := range specifiedLineTradeAgreement.Each("ram:GrossPriceProductTradePrice/ram:AppliedTradeAllowanceCharge") {
ac := AllowanceCharge{
ChargeIndicator: allowanceCharge.Eval("string(ram:ChargeIndicator/udt:Indicator) = 'true'").Bool(),
BasisAmount: getDecimal(allowanceCharge, "ram:BasisAmount"),
ActualAmount: getDecimal(allowanceCharge, "ram:ActualAmount"),
CalculationPercent: getDecimal(allowanceCharge, "ram:CalculationPercent"),
ReasonCode: allowanceCharge.Eval("ram:ReasonCode").Int(),
Reason: allowanceCharge.Eval("ram:Reason").String(),
CategoryTradeTaxType: allowanceCharge.Eval("ram:CategoryTradeTax/ram:TypeCode").String(),
CategoryTradeTaxCategoryCode: allowanceCharge.Eval("ram:CategoryTradeTax/ram:CategoryCode").String(),
CategoryTradeTaxRateApplicablePercent: getDecimal(allowanceCharge, "ram:CategoryTradeTax/ram:RateApplicablePercent"),
}
if ac.ChargeIndicator {
p.AppliedTradeAllowanceCharge = append(p.AppliedTradeAllowanceCharge, ac)
} else {
p.AppliedTradeAllowanceCharge = append(p.AppliedTradeAllowanceCharge, ac)
}
}
return nil
}
func parseSepecifiedTradeProduct(specifiedTradeProduct *cxpath.Context, p *InvoiceLine) error {
p.GlobalID = specifiedTradeProduct.Eval("ram:GlobalID").String()
p.GlobalIDType = specifiedTradeProduct.Eval("ram:GlobalID/@schemeID").String()
p.ArticleNumber = specifiedTradeProduct.Eval("ram:SellerAssignedID").String()
p.ArticleNumberBuyer = specifiedTradeProduct.Eval("ram:BuyerAssignedID").String()
p.ItemName = specifiedTradeProduct.Eval("ram:Name").String()
p.Description = specifiedTradeProduct.Eval("ram:Description").String()
for itm := range specifiedTradeProduct.Each("ram:ApplicableProductCharacteristic") {
ch := Characteristic{
Description: itm.Eval("ram:Description").String(),
Value: itm.Eval("ram:Value").String(),
}
p.Characteristics = append(p.Characteristics, ch)
}
for itm := range specifiedTradeProduct.Each("ram:DesignatedProductClassification") {
ch := Classification{
ClassCode: itm.Eval("ram:ClassCode").String(),
ListID: itm.Eval("ram:ClassCode/@listID").String(),
ListVersionID: itm.Eval("ram:ClassCode/@listVersionID").String(),
}
p.ProductClassification = append(p.ProductClassification, ch)
}
p.OriginTradeCountry = specifiedTradeProduct.Eval("ram:OriginTradeCountry/ram:ID").String()
return nil
}
func parseCIISupplyChainTradeTransaction(supplyChainTradeTransaction *cxpath.Context, inv *Invoice) error {
var err error
// BG-25
for lineItem := range supplyChainTradeTransaction.Each("ram:IncludedSupplyChainTradeLineItem") {
p := InvoiceLine{}
p.LineID = lineItem.Eval("ram:AssociatedDocumentLineDocument/ram:LineID").String()
p.Note = lineItem.Eval("ram:AssociatedDocumentLineDocument/ram:IncludedNote/ram:Content").String()
err = parseSepecifiedTradeProduct(lineItem.Eval("ram:SpecifiedTradeProduct"), &p)
err = parseSepecifiedLineTradeAgreement(lineItem.Eval("ram:SpecifiedLineTradeAgreement"), &p)
p.BilledQuantity = getDecimal(lineItem, "ram:SpecifiedLineTradeDelivery/ram:BilledQuantity")
p.BilledQuantityUnit = lineItem.Eval("ram:SpecifiedLineTradeDelivery/ram:BilledQuantity/@unitCode").String()
if lineItem.Eval("count(ram:SpecifiedLineTradeSettlement/ram:SpecifiedTradeSettlementLineMonetarySummation/ram:LineTotalAmount)").Int() > 0 {
p.Total = getDecimal(lineItem, "ram:SpecifiedLineTradeSettlement/ram:SpecifiedTradeSettlementLineMonetarySummation/ram:LineTotalAmount")
} else {
// BR-24 Rechnungsposition
// Jede Rechnungsposition „INVOICE LINE“ (BG-25) muss den Nettobetrag der Rechnungsposition „Invoice line net amount“ (BT-131) enthalten.
inv.Violations = append(inv.Violations, SemanticError{Rule: "BR-24", InvFields: []string{"BG-25", "BT-131"}, Text: "Line's net amount not found"})
}
for allowanceCharge := range lineItem.Each("ram:SpecifiedLineTradeSettlement/ram:SpecifiedTradeAllowanceCharge") {
ac := AllowanceCharge{
ChargeIndicator: allowanceCharge.Eval("string(ram:ChargeIndicator/udt:Indicator) = 'true'").Bool(),
BasisAmount: getDecimal(allowanceCharge, "ram:BasisAmount"),
ActualAmount: getDecimal(allowanceCharge, "ram:ActualAmount"),
CalculationPercent: getDecimal(allowanceCharge, "ram:CalculationPercent"),
ReasonCode: allowanceCharge.Eval("ram:ReasonCode").Int(),
Reason: allowanceCharge.Eval("ram:Reason").String(),
CategoryTradeTaxType: allowanceCharge.Eval("ram:CategoryTradeTax/ram:TypeCode").String(),
CategoryTradeTaxCategoryCode: allowanceCharge.Eval("ram:CategoryTradeTax/ram:CategoryCode").String(),
CategoryTradeTaxRateApplicablePercent: getDecimal(allowanceCharge, "ram:CategoryTradeTax/ram:RateApplicablePercent"),
}
// Im Fall eines Abschlags (BG-27) ist der Wert des ChargeIndicators auf "false" zu setzen.
// Im Fall eines Zuschlags (BG-28) ist der Wert des ChargeIndicators auf "true" zu setzen.
if ac.ChargeIndicator {
p.InvoiceLineCharges = append(p.InvoiceLineCharges, ac)
} else {
p.InvoiceLineAllowances = append(p.InvoiceLineAllowances, ac)
}
}
taxInfo := lineItem.Eval("ram:SpecifiedLineTradeSettlement/ram:ApplicableTradeTax")
// BG-27, BG-28
p.TaxTypeCode = taxInfo.Eval("ram:TypeCode").String()
p.TaxCategoryCode = taxInfo.Eval("ram:CategoryCode").String()
p.TaxRateApplicablePercent = getDecimal(taxInfo, "ram:RateApplicablePercent")
p.BillingSpecifiedPeriodStart, _ = parseTime(lineItem, "ram:SpecifiedLineTradeSettlement/ram:BillingSpecifiedPeriod/ram:StartDateTime/udt:DateTimeString")
p.BillingSpecifiedPeriodEnd, _ = parseTime(lineItem, "ram:SpecifiedLineTradeSettlement/ram:BillingSpecifiedPeriod/ram:EndDateTime/udt:DateTimeString")
inv.InvoiceLines = append(inv.InvoiceLines, p)
}
if err = parseCIIApplicableHeaderTradeAgreement(supplyChainTradeTransaction.Eval("ram:ApplicableHeaderTradeAgreement"), inv); err != nil {
return err
}
if err = parseCIIApplicableHeaderTradeDelivery(supplyChainTradeTransaction.Eval("ram:ApplicableHeaderTradeDelivery"), inv); err != nil {
return err
}
if err = parseCIIApplicableHeaderTradeSettlement(supplyChainTradeTransaction.Eval("ram:ApplicableHeaderTradeSettlement"), inv); err != nil {
return err
}
return nil
}
func parseCIIExchangedDocument(exchangedDocument *cxpath.Context, rg *Invoice) error {
rg.InvoiceNumber = exchangedDocument.Eval("ram:ID/text()").String()
rg.InvoiceTypeCode = CodeDocument(exchangedDocument.Eval("ram:TypeCode").Int())
invoiceDate, err := parseTime(exchangedDocument, "ram:IssueDateTime/udt:DateTimeString")
if err != nil {
return err
}
rg.InvoiceDate = invoiceDate
for note := range exchangedDocument.Each("ram:IncludedNote") {
n := Note{}
n.SubjectCode = note.Eval("ram:SubjectCode").String()
n.Text = note.Eval("ram:Content").String()
rg.Notes = append(rg.Notes, n)
}
return nil
}
func parseCIIExchangedDocumentContext(ctx *cxpath.Context, rg *Invoice) error {
nc := ctx.Eval("ram:GuidelineSpecifiedDocumentContextParameter").Eval("ram:ID")
switch nc.String() {
case "urn:cen.eu:en16931:2017#compliant#urn:xeinkauf.de:kosit:xrechnung_3.0":
rg.Profile = CProfileXRechnung
case "urn:cen.eu:en16931:2017#conformant#urn:factur-x.eu:1p0:extended", "urn:cen.eu:en16931:2017#conformant#urn:zugferd.de:2p0:extended":
rg.Profile = CProfileExtended
case "urn:cen.eu:en16931:2017":
rg.Profile = CProfileEN16931
case "urn:cen.eu:en16931:2017#compliant#urn:factur-x.eu:1p0:basic",
"urn:cen.eu:en16931:2017#compliant#urn:zugferd.de:2p0:basic",
"urn:cen.eu:en16931:2017:compliant:factur-x.eu:1p0:basic":
rg.Profile = CProfileBasic
case "urn:factur-x.eu:1p0:basicwl":
rg.Profile = CProfileBasicWL
case "urn:factur-x.eu:1p0:minimum", "urn:zugferd.de:2p0:minimum":
rg.Profile = CProfileMinimum
}
rg.BPSpecifiedDocumentContextParameter = ctx.Eval("ram:BusinessProcessSpecifiedDocumentContextParameter/ram:ID").String()
return nil
}
// parseCII interprets the XML file as a ZUGFeRD or Factur-X cross industry
// invoice.
func parseCII(cii *cxpath.Context) (*Invoice, error) {
var err error
inv := &Invoice{}
err = parseCIIExchangedDocumentContext(cii.Eval("rsm:ExchangedDocumentContext"), inv)
if err != nil {
return nil, err
}
if err = parseCIIExchangedDocument(cii.Eval("rsm:ExchangedDocument"), inv); err != nil {
return nil, err
}
if err = parseCIISupplyChainTradeTransaction(cii.Eval("rsm:SupplyChainTradeTransaction"), inv); err != nil {
return nil, err
}
return inv, nil
}
// ParseReader reads the XML from the reader.
func ParseReader(r io.Reader) (*Invoice, error) {
ctx, err := cxpath.NewFromReader(r)
if err != nil {
return nil, err
}
ctx.SetNamespace("rsm", "urn:un:unece:uncefact:data:standard:CrossIndustryInvoice:100")
ctx.SetNamespace("ram", "urn:un:unece:uncefact:data:standard:ReusableAggregateBusinessInformationEntity:100")
ctx.SetNamespace("udt", "urn:un:unece:uncefact:data:standard:UnqualifiedDataType:100")
ctx.SetNamespace("qdt", "urn:un:unece:uncefact:data:standard:QualifiedDataType:100")
var m *Invoice
cii := ctx.Root()
rootns := cii.Eval("namespace-uri()").String()
switch rootns {
case "urn:un:unece:uncefact:data:standard:CrossIndustryInvoice:100":
m, err = parseCII(cii)
}
if err != nil {
return nil, err
}
m.SchemaType = CII
m.check()
return m, nil
}
// ParseXMLFile reads the XML file at filename.
func ParseXMLFile(filename string) (*Invoice, error) {
r, err := os.Open(filename)
if err != nil {
return nil, err
}
return ParseReader(r)
}