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render_table.go
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/
render_table.go
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// SPDX-License-Identifier: BSD-3-Clause
// Copyright (c) 2022, Unikraft GmbH and The KraftKit Authors.
// Licensed under the BSD-3-Clause License (the "License").
// You may not use this file expect in compliance with the License.
package tableprinter
import (
"fmt"
"io"
"strings"
)
func (printer *TablePrinter) renderTable(w io.Writer) error {
numCols := len(printer.rows[0])
colWidths := printer.calculateColumnWidths(len(printer.delimeter))
for _, row := range printer.rows {
for col, field := range row {
if col > 0 {
_, err := fmt.Fprint(w, printer.delimeter)
if err != nil {
return err
}
}
truncVal := printer.truncateFunc(colWidths[col], field.text)
if col < numCols-1 {
// pad value with spaces on the right
if padWidth := colWidths[col] - field.DisplayWidth(); padWidth > 0 {
truncVal += strings.Repeat(" ", padWidth)
}
}
if field.color != nil {
truncVal = field.color(truncVal)
}
_, err := fmt.Fprint(w, truncVal)
if err != nil {
return err
}
}
if len(row) > 0 {
_, err := fmt.Fprint(w, "\n")
if err != nil {
return err
}
}
}
return nil
}