mirror of
https://github.com/strongdm/comply
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65 lines
2.2 KiB
Go
65 lines
2.2 KiB
Go
// Copyright 2016 Canonical Ltd.
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// Licensed under the LGPLv3, see LICENCE file for details.
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package ansiterm
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import (
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"io"
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"github.com/juju/ansiterm/tabwriter"
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)
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// NewTabWriter returns a writer that is able to set colors and styels.
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// The ansi escape codes are stripped for width calculations.
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func NewTabWriter(output io.Writer, minwidth, tabwidth, padding int, padchar byte, flags uint) *TabWriter {
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return new(TabWriter).Init(output, minwidth, tabwidth, padding, padchar, flags)
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}
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// TabWriter is a filter that inserts padding around tab-delimited
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// columns in its input to align them in the output.
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//
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// It also setting of colors and styles over and above the standard
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// tabwriter package.
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type TabWriter struct {
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Writer
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tw tabwriter.Writer
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}
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// Flush should be called after the last call to Write to ensure
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// that any data buffered in the Writer is written to output. Any
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// incomplete escape sequence at the end is considered
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// complete for formatting purposes.
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//
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func (t *TabWriter) Flush() error {
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return t.tw.Flush()
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}
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// SetColumnAlignRight will mark a particular column as align right.
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// This is reset on the next flush.
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func (t *TabWriter) SetColumnAlignRight(column int) {
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t.tw.SetColumnAlignRight(column)
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}
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// A Writer must be initialized with a call to Init. The first parameter (output)
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// specifies the filter output. The remaining parameters control the formatting:
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//
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// minwidth minimal cell width including any padding
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// tabwidth width of tab characters (equivalent number of spaces)
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// padding padding added to a cell before computing its width
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// padchar ASCII char used for padding
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// if padchar == '\t', the Writer will assume that the
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// width of a '\t' in the formatted output is tabwidth,
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// and cells are left-aligned independent of align_left
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// (for correct-looking results, tabwidth must correspond
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// to the tab width in the viewer displaying the result)
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// flags formatting control
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//
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func (t *TabWriter) Init(output io.Writer, minwidth, tabwidth, padding int, padchar byte, flags uint) *TabWriter {
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writer, colorCapable := colorEnabledWriter(output)
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t.Writer = Writer{
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Writer: t.tw.Init(writer, minwidth, tabwidth, padding, padchar, flags),
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noColor: !colorCapable,
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}
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return t
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}
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