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except.go
44 lines (41 loc) · 782 Bytes
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except.go
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package tbln
import (
"io"
)
// ExceptRow reads excepted rows from DiffRow
func (d *DiffRow) ExceptRow() []string {
switch d.Les {
case -1:
return d.Self
case 2:
return d.Self
default:
return nil
}
}
// ExceptAll merges two tbln and returns one tbln.
func ExceptAll(t1, t2 Reader) (*TBLN, error) {
diff, err := NewCompare(t1, t2)
if err != nil {
return nil, err
}
tb := NewTBLN()
tb.Definition = t2.GetDefinition()
tb.Definition.Hashes = make(map[string][]byte)
tb.Definition.Signs = make(Signatures)
tb.Rows = make([][]string, 0)
for {
dd, err := diff.ReadDiffRow()
if err != nil {
if err == io.EOF {
return tb, nil
}
return nil, err
}
row := dd.ExceptRow()
if row != nil {
tb.RowNum++
tb.Rows = append(tb.Rows, row)
}
}
}