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package html2text
import (
"github.com/olekukonko/tablewriter"
"github.com/olekukonko/tablewriter/tw"
)
// PrettyTablesOptions overrides tablewriter behaviors
type PrettyTablesOptions struct {
AutoFormatHeader bool
AutoWrapText bool
// Deprecated. Tablewriter always assumes this to be `true`
ReflowDuringAutoWrap bool
ColWidth int
ColumnSeparator string
RowSeparator string
CenterSeparator string
HeaderAlignment tw.Align
FooterAlignment tw.Align
Alignment tw.Align
ColumnAlignment tw.Alignment
// Deprecated. Tablewriter always assumes this to be `\n`
NewLine string
HeaderLine bool
RowLine bool
AutoMergeCells bool
Borders Border
// Configuration allows to directly manipulate the `Table` with all what [tablewriter] offers.
// Setting this ignores all the rest of the settings of this struct.
Configuration func(table *tablewriter.Table)
}
// NewPrettyTablesOptions creates PrettyTablesOptions with default settings
func NewPrettyTablesOptions() *PrettyTablesOptions {
return &PrettyTablesOptions{
AutoFormatHeader: true,
AutoWrapText: true,
ColWidth: 32, // old tablewriter.MAX_ROW_WIDTH + borders now count into width
ColumnSeparator: defaultBorderStyle.ColumnSeparator,
RowSeparator: defaultBorderStyle.RowSeparator,
CenterSeparator: defaultBorderStyle.CenterSeparator,
HeaderAlignment: tw.AlignCenter,
FooterAlignment: tw.AlignCenter,
Alignment: tw.AlignDefault,
ColumnAlignment: make(tw.Alignment, 0),
HeaderLine: true,
RowLine: false,
AutoMergeCells: false,
Borders: Border{Left: true, Right: true, Bottom: true, Top: true},
}
}
func (p *PrettyTablesOptions) configureTable(table *tablewriter.Table) {
if p.Configuration != nil {
p.Configuration(table)
return
}
cfg := tablewriter.NewConfigBuilder()
cfg.WithHeaderAutoFormat(asState(p.AutoFormatHeader)).WithFooterAutoFormat(asState(p.AutoFormatHeader)).
WithRowAutoWrap(p.wrapMode()).WithHeaderAutoWrap(p.wrapMode()).WithFooterAutoWrap(p.wrapMode()).
WithRowMaxWidth(p.ColWidth).
WithHeaderAlignment(p.HeaderAlignment).
WithFooterAlignment(p.FooterAlignment).
WithRowAlignment(p.Alignment).
WithRowMergeMode(p.mergeMode())
if len(p.ColumnAlignment) > 0 {
cfg.Row().Alignment().WithPerColumn(p.ColumnAlignment)
}
rendition := tw.Rendition{
Borders: p.Borders.withStates(),
Symbols: p.borderStyle(),
Settings: p.renderSettings(),
}
table.Options(
tablewriter.WithConfig(cfg.Build()),
tablewriter.WithRendition(rendition))
}
func (p *PrettyTablesOptions) wrapMode() int {
if p.AutoWrapText {
return tw.WrapNormal
} else {
return tw.WrapNone
}
}
func (p *PrettyTablesOptions) mergeMode() int {
if p.AutoMergeCells {
return tw.MergeVertical
} else {
return tw.MergeNone
}
}
func (p *PrettyTablesOptions) renderSettings() tw.Settings {
return tw.Settings{
Lines: tw.Lines{
ShowHeaderLine: asState(p.HeaderLine),
},
Separators: tw.Separators{
BetweenRows: asState(p.RowLine),
},
}
}
// Border controls tablewriter borders. It uses simple bools instead of tablewriters `State`
type Border struct {
Left, Right, Bottom, Top bool
}
func (b Border) withStates() tw.Border {
return tw.Border{
Left: asState(b.Left),
Right: asState(b.Right),
Bottom: asState(b.Bottom),
Top: asState(b.Top),
}
}
type BorderStyle struct {
ColumnSeparator string
RowSeparator string
CenterSeparator string
}
func (b BorderStyle) Name() string {
return "html2text"
}
func (b BorderStyle) Center() string {
return b.CenterSeparator
}
func (b BorderStyle) Row() string {
return b.RowSeparator
}
func (b BorderStyle) Column() string {
return b.ColumnSeparator
}
func (b BorderStyle) TopLeft() string {
return b.CenterSeparator
}
func (b BorderStyle) TopMid() string {
return b.CenterSeparator
}
func (b BorderStyle) TopRight() string {
return b.CenterSeparator
}
func (b BorderStyle) MidLeft() string {
return b.CenterSeparator
}
func (b BorderStyle) MidRight() string {
return b.CenterSeparator
}
func (b BorderStyle) BottomLeft() string {
return b.CenterSeparator
}
func (b BorderStyle) BottomMid() string {
return b.CenterSeparator
}
func (b BorderStyle) BottomRight() string {
return b.CenterSeparator
}
func (b BorderStyle) HeaderLeft() string {
return b.CenterSeparator
}
func (b BorderStyle) HeaderMid() string {
return b.CenterSeparator
}
func (b BorderStyle) HeaderRight() string {
return b.CenterSeparator
}
var defaultBorderStyle = BorderStyle{
ColumnSeparator: "|",
RowSeparator: "-",
CenterSeparator: "+",
}
func (p *PrettyTablesOptions) borderStyle() BorderStyle {
return BorderStyle{
ColumnSeparator: p.ColumnSeparator,
RowSeparator: p.RowSeparator,
CenterSeparator: p.CenterSeparator,
}
}
func asState(b bool) tw.State {
// TableWriter does not provide this by default :(
if b {
return tw.On
} else {
return tw.Off
}
}
|
