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update go min version Update Vendors: * code.gitea.io/gitea-vet v0.2.0 -> v0.2.1 * code.gitea.io/sdk/gitea v0.13.0 -> v0.13.1 * github.com/AlecAivazis/survey v2.1.1 -> v2.2.2 * github.com/adrg/xdg v0.2.1 -> v0.2.2 * github.com/araddon/dateparse d820a6159ab1 -> 8aadafed4dc4 * github.com/go-git/go-git v5.1.0 -> v5.2.0 * github.com/muesli/termenv v0.7.2 -> v0.7.4 * github.com/stretchr/testify v1.5.1 -> v1.6.1 * github.com/urfave/cli v2.2.0 -> v2.3.0 Co-authored-by: 6543 <6543@obermui.de> Reviewed-on: https://gitea.com/gitea/tea/pulls/250 Reviewed-by: Andrew Thornton <art27@cantab.net> Reviewed-by: mrsdizzie <info@mrsdizzie.com> Co-Authored-By: 6543 <6543@noreply.gitea.io> Co-Committed-By: 6543 <6543@noreply.gitea.io>
39 lines
681 B
Go
39 lines
681 B
Go
package ansi
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import (
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"bytes"
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"github.com/mattn/go-runewidth"
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)
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// Buffer is a buffer aware of ANSI escape sequences.
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type Buffer struct {
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bytes.Buffer
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}
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// PrintableRuneWidth returns the width of all printable runes in the buffer.
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func (w Buffer) PrintableRuneWidth() int {
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return PrintableRuneWidth(w.String())
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}
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func PrintableRuneWidth(s string) int {
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var n int
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var ansi bool
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for _, c := range s {
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if c == '\x1B' {
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// ANSI escape sequence
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ansi = true
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} else if ansi {
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if (c >= 0x40 && c <= 0x5a) || (c >= 0x61 && c <= 0x7a) {
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// ANSI sequence terminated
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ansi = false
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}
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} else {
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n += runewidth.StringWidth(string(c))
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}
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}
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return n
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}
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