ConvertTo-JSON for Powershell 2.0

ConvertTo-JSON.ps1

function Escape-JSONString($str){
	if ($str -eq $null) {return ""}
	$str = $str.ToString().Replace('"','\"').Replace('\','\\').Replace("`n",'\n').Replace("`r",'\r').Replace("`t",'\t')
	return $str;
}

function ConvertTo-JSON($maxDepth = 4,$forceArray = $false) {
	begin {
		$data = @()
	}
	process{
		$data += $_
	}
	
	end{
	
		if ($data.length -eq 1 -and $forceArray -eq $false) {
			$value = $data[0]
		} else {	
			$value = $data
		}

		if ($value -eq $null) {
			return "null"
		}

		

		$dataType = $value.GetType().Name
		
		switch -regex ($dataType) {
	            'String'  {
					return  "`"{0}`"" -f (Escape-JSONString $value )
				}
	            '(System\.)?DateTime'  {return  "`"{0:yyyy-MM-dd}T{0:HH:mm:ss}`"" -f $value}
	            'Int32|Double' {return  "$value"}
				'Boolean' {return  "$value".ToLower()}
	            '(System\.)?Object\[\]' { # array
					
					if ($maxDepth -le 0){return "`"$value`""}
					
					$jsonResult = ''
					foreach($elem in $value){
						#if ($elem -eq $null) {continue}
						if ($jsonResult.Length -gt 0) {$jsonResult +=', '}				
						$jsonResult += ($elem | ConvertTo-JSON -maxDepth ($maxDepth -1))
					}
					return "[" + $jsonResult + "]"
	            }
				'(System\.)?Hashtable' { # hashtable
					$jsonResult = ''
					foreach($key in $value.Keys){
						if ($jsonResult.Length -gt 0) {$jsonResult +=', '}
						$jsonResult += 
@"
	"{0}": {1}
"@ -f $key , ($value[$key] | ConvertTo-JSON -maxDepth ($maxDepth -1) )
					}
					return "{" + $jsonResult + "}"
				}
	            default { #object
					if ($maxDepth -le 0){return  "`"{0}`"" -f (Escape-JSONString $value)}
					
					return "{" +
						(($value | Get-Member -MemberType *property | % { 
@"
	"{0}": {1}
"@ -f $_.Name , ($value.($_.Name) | ConvertTo-JSON -maxDepth ($maxDepth -1) )			
					
					}) -join ', ') + "}"
	    		}
		}
	}
}
	
	
#"a" | ConvertTo-JSON
#dir \ | ConvertTo-JSON 
#(get-date) | ConvertTo-JSON
#(dir \)[0] | ConvertTo-JSON -maxDepth 1
#@{ "asd" = "sdfads" ; "a" = 2 } | ConvertTo-JSON

This is legit. Thank you.

Thanks!

THANK you!

Found an issue with double escapng "

it should be

$str = $str.ToString().Replace('\','\\').Replace('"','\"').Replace("`n",'\n').Replace("`r",'\r').Replace("`t",'\t')

Hi, This function works totally fine with me, But the problem is it is breaking the order of the elements in the JSON file being sorted alphabetically. So by running the following:
@{ "xx" = "sdfads" ; "a" = 2 } | ConvertTo-JSON

the result becoming:
{ "a": 2, "xx": "sdfads"}

So the original order xx,a is becoming a,xx
How to not sort the order of the elements? Can you suggest what I might need to change?

What license is this snippet available under?

does anyone know if there's a convertfrom-json implementation just like this one?

It seems to me that line 36 doesn't support enough numeric types. I prefer to remove lines 36 and 37 and insert these two lines at line 30, instead:

if ($value.GetType().Name -eq 'Boolean') {return "$value".ToLower()}
if ($value.GetType().IsPrimitive) {return "$value"}

This is crap. For a solution from a superior mind, see https://github.com/EliteLoser/ConvertTo-Json - but thanks for sharing.

Hello
how can i remove \t in json?
{\t"id": "63304D56-6A42-43DB-7670-B73FD8389E6", \t"type": "Hello"}