mirror of
https://github.com/JanDeDobbeleer/oh-my-posh.git
synced 2024-12-29 04:49:39 -08:00
130 lines
3.3 KiB
Go
130 lines
3.3 KiB
Go
package main
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import (
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"bytes"
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"fmt"
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"strings"
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"golang.org/x/text/unicode/norm"
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)
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func lenWithoutANSI(text, shell string) int {
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rANSI := "[\u001B\u009B][[\\]()#;?]*(?:(?:(?:[a-zA-Z\\d]*(?:;[a-zA-Z\\d]*)*)?\u0007)|(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PRZcf-ntqry=><~]))"
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stripped := replaceAllString(rANSI, text, "")
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switch shell {
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case zsh:
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stripped = strings.ReplaceAll(stripped, "%{", "")
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stripped = strings.ReplaceAll(stripped, "%}", "")
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case bash:
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stripped = strings.ReplaceAll(stripped, "\\[", "")
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stripped = strings.ReplaceAll(stripped, "\\]", "")
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}
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var i norm.Iter
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i.InitString(norm.NFD, stripped)
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var count int
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for !i.Done() {
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i.Next()
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count++
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}
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return count
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}
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type formats struct {
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linechange string
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left string
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right string
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title string
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creset string
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clearOEL string
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saveCursorPosition string
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restoreCursorPosition string
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}
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// AnsiRenderer exposes functionality using ANSI
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type AnsiRenderer struct {
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buffer *bytes.Buffer
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formats *formats
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shell string
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}
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func (r *AnsiRenderer) init(shell string) {
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r.shell = shell
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r.formats = &formats{}
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switch shell {
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case zsh:
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r.formats.linechange = "%%{\x1b[%d%s%%}"
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r.formats.left = "%%{\x1b[%dC%%}"
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r.formats.right = "%%{\x1b[%dD%%}"
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r.formats.title = "%%{\033]0;%s\007%%}"
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r.formats.creset = "%{\x1b[0m%}"
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r.formats.clearOEL = "%{\x1b[K%}"
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r.formats.saveCursorPosition = "%{\x1b7%}"
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r.formats.restoreCursorPosition = "%{\x1b8%}"
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case bash:
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r.formats.linechange = "\\[\x1b[%d%s\\]"
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r.formats.left = "\\[\x1b[%dC\\]"
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r.formats.right = "\\[\x1b[%dD\\]"
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r.formats.title = "\\[\033]0;%s\007\\]"
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r.formats.creset = "\\[\x1b[0m\\]"
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r.formats.clearOEL = "\\[\x1b[K\\]"
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r.formats.saveCursorPosition = "\\[\x1b7\\]"
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r.formats.restoreCursorPosition = "\\[\x1b8\\]"
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default:
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r.formats.linechange = "\x1b[%d%s"
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r.formats.left = "\x1b[%dC"
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r.formats.right = "\x1b[%dD"
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r.formats.title = "\033]0;%s\007"
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r.formats.creset = "\x1b[0m"
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r.formats.clearOEL = "\x1b[K"
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r.formats.saveCursorPosition = "\x1b7"
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r.formats.restoreCursorPosition = "\x1b8"
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}
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}
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func (r *AnsiRenderer) carriageForward() {
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r.buffer.WriteString(fmt.Sprintf(r.formats.left, 1000))
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}
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func (r *AnsiRenderer) setCursorForRightWrite(text string, offset int) {
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strippedLen := lenWithoutANSI(text, r.shell) + -offset
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r.buffer.WriteString(fmt.Sprintf(r.formats.right, strippedLen))
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}
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func (r *AnsiRenderer) changeLine(numberOfLines int) {
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position := "B"
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if numberOfLines < 0 {
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position = "F"
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numberOfLines = -numberOfLines
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}
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r.buffer.WriteString(fmt.Sprintf(r.formats.linechange, numberOfLines, position))
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}
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func (r *AnsiRenderer) setConsoleTitle(title string) {
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r.buffer.WriteString(fmt.Sprintf(r.formats.title, title))
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}
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func (r *AnsiRenderer) creset() {
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r.buffer.WriteString(r.formats.creset)
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}
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func (r *AnsiRenderer) print(text string) {
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r.buffer.WriteString(text)
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r.clearEOL()
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}
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func (r *AnsiRenderer) clearEOL() {
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r.buffer.WriteString(r.formats.clearOEL)
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}
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func (r *AnsiRenderer) string() string {
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return r.buffer.String()
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}
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func (r *AnsiRenderer) saveCursorPosition() {
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r.buffer.WriteString(r.formats.saveCursorPosition)
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}
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func (r *AnsiRenderer) restoreCursorPosition() {
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r.buffer.WriteString(r.formats.restoreCursorPosition)
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}
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