A PowerShell Prompt that matches Thayol's UNIX prompts

prompt.ps1

# ===Color Abbreviation===
# x = reset
# k = blacK   r = Red
# g = Green   y = Yellow
# b = Blue    m = Magenta
# c = Cyan    w = White
function prompt {
    $esc = [char]0x1b
    $x   = "$esc[0m"
    $k   = "$esc[90m"
    $r   = "$esc[91m"
    $g   = "$esc[92m"
    $y   = "$esc[93m"
    $b   = "$esc[94m"
    $m   = "$esc[95m"
    $c   = "$esc[96m"
    $w   = "$esc[97m"
    
    $sep = [regex]::Escape([IO.Path]::DirectorySeparatorChar)
    $dir = $PWD.Path.replace('\', '/') -replace "C:"

    $br = git branch --show-current 2> $null
    if ( $br ) {
        $brc = $c
        if ( $br -eq "main" -or $br -eq "master" -or $br -eq "dev" ) {
            $brc = $r
        }
		$br = "${x}(${brc}${br}${x})"
    }
    
    $u   = $env:USERNAME
    $h   = $env:COMPUTERNAME.ToLower()
    $end = "$"

    Write-Output "${x}`n[${g}${h}${x}:${b}${dir}${x}] ${br}`n${x}${end}${x} "
}