变量内每行的Powershell

Question

I am trying to go through a variable, line by line, and apply regex to parse the string within it.

I am downloading the data via invoke-restmethod and am trying to do the below

$result= invoke-restmethod -uri $uri -method get

foreach($line in $result)
if($line -match $regex)
{
   #parsing
}

the above doesn't work as their is only one line. But when I output result into a file and then apply the above logic it works, like so

$result= invoke-restmethod -uri $uri -method get
$result >> $filelocation

$file = get-content $file
foreach($line in $file)
if($line -match $regex)
{
   #parsing
}

The script is time critical so I don't have the luxury to write to a file and then reopen, how could I achieve the above without using get-content?

Answer 1

It is not a problem with Invoke-Method. The following works exactly as you would want.

$result = Invoke-RestMethod -Uri https://blogs.msdn.microsoft.com/powershell/feed/
$result | %{ Write-Host $_ }

I suspect that the REST endpoint is giving you a UNIX newline instead of a windows newline. In UNIX, a new line is one character 'lf' (line feed). In windows a newline is a 'crlf' (carriage return, line feed).

Try a string split method

$result.Split("`n") | %{ Write-Host $_ }

or if you prefer your 'foreach' syntax

foreach ($line in $result.Split("`n")) {
  Write-Host $line
}

[Edit: changed 'for' to 'foreach']