105 lines
2.8 KiB
Go
105 lines
2.8 KiB
Go
package source
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import (
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"fmt"
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"strings"
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)
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func ValidateDocument(doc *SourceDocument) error {
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if doc == nil {
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return fmt.Errorf("source document must not be nil")
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}
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if isBlank(doc.ID) {
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return fmt.Errorf("source document id must not be empty")
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}
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if hasSurroundingWhitespace(doc.ID) {
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return fmt.Errorf("source document id %q must not contain leading or trailing whitespace", doc.ID)
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}
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if isBlank(doc.Kind) {
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return fmt.Errorf("source document kind must not be empty")
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}
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if isBlank(doc.Format) {
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return fmt.Errorf("source document format must not be empty")
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}
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if isBlank(doc.Digest) {
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return fmt.Errorf("source document digest must not be empty")
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}
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if len(doc.Units) == 0 {
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return fmt.Errorf("source document units must not be empty")
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}
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seenUnitIDs := make(map[int]struct{}, len(doc.Units))
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for i, unit := range doc.Units {
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if unit.ID <= 0 {
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return fmt.Errorf("source unit[%d].id must be positive", i)
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}
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if isBlank(unit.Kind) {
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return fmt.Errorf("source unit[%d].kind must not be empty", i)
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}
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if isBlank(unit.Text) {
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return fmt.Errorf("source unit[%d].text must not be empty", i)
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}
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if _, ok := seenUnitIDs[unit.ID]; ok {
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return fmt.Errorf("source unit id %d is duplicated", unit.ID)
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}
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seenUnitIDs[unit.ID] = struct{}{}
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}
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return nil
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}
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func ValidateRef(doc *SourceDocument, ref SourceRef) error {
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if doc == nil {
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return fmt.Errorf("source document must not be nil")
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}
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if isBlank(ref.SourceID) {
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return fmt.Errorf("source ref source_id must not be empty")
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}
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if hasSurroundingWhitespace(ref.SourceID) {
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return fmt.Errorf("source ref source_id %q must not contain leading or trailing whitespace", ref.SourceID)
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}
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if ref.StartUnitID <= 0 {
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return fmt.Errorf("source ref start_unit_id must be positive")
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}
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if ref.EndUnitID <= 0 {
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return fmt.Errorf("source ref end_unit_id must be positive")
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}
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if ref.SourceID != doc.ID {
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return fmt.Errorf("source ref source_id %q does not match document id %q", ref.SourceID, doc.ID)
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}
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startIndex, ok := UnitIndex(doc, ref.StartUnitID)
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if !ok {
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return fmt.Errorf("source ref start_unit_id %d was not found", ref.StartUnitID)
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}
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endIndex, ok := UnitIndex(doc, ref.EndUnitID)
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if !ok {
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return fmt.Errorf("source ref end_unit_id %d was not found", ref.EndUnitID)
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}
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if startIndex > endIndex {
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return fmt.Errorf("source ref start_unit_id %d appears after end_unit_id %d", ref.StartUnitID, ref.EndUnitID)
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}
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return nil
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}
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func UnitIndex(doc *SourceDocument, unitID int) (int, bool) {
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if doc == nil {
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return 0, false
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}
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for i, unit := range doc.Units {
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if unit.ID == unitID {
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return i, true
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}
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}
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return 0, false
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}
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func isBlank(value string) bool {
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return strings.TrimSpace(value) == ""
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}
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func hasSurroundingWhitespace(value string) bool {
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return strings.TrimSpace(value) != value
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}
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