Enhance error handling in Set-PSHTMLTag

[Stephanevg]

allow better tracabbility of errors in New-PSHTMLTag.

using the following snipet from Nownd:

function a () {
    b
}

function b () {
    c
}

function c () {
    throw "error"
}

try {
    a
} catch {
    "Standard output:"
    $_

    "Full stack trace:"
    $_.ScriptStackTrace | Out-String | 
        # change the output 
        # from: at file.ps1 line 13
        # to: at file.ps1:13
        foreach { $_ -replace '\s*line\s+(\d+)','$1'}
}

source --> https://gist.github.com/nohwnd/02dd7af0fac84b1d379810727458a852

[Stephanevg]

I have started to work on this one:

test case

address -Content {div {p -name } }

updating the address function like this

        $tagname = "address"

        try {

            Set-htmltag -TagName $tagName -Parameters $PSBoundParameters -TagType NonVoid -ErrorAction Stop
        }catch{
            $_.Exception.Message
            $_.ScriptStackTrace
        }

results

PS /Users/stephanevg/github/PSHTML> address -Content {div {p -name } }
Exception calling "Invoke" with "0" argument(s): "Exception calling "Invoke" with "0" argument(s): "A parameter cannot be found that matches parameter name 'name'.""
at Set-HtmlTag<Process>, /Users/stephanevg/github/PSHTML/PSHTML/PSHTML.psm1: line 1741
at address<Process>, /Users/stephanevg/github/PSHTML/PSHTML/PSHTML.psm1: line 2092

[Stephanevg]

div example

div without try catch

PS /Users/stephanevg/github/PSHTML> div {address -plop}

div with try catch

updated div with try catch

PS /Users/stephanevg/github/PSHTML> div {address -plop}
Exception calling "Invoke" with "0" argument(s): "A parameter cannot be found that matches parameter name 'plop'."

at Set-HtmlTag, /Users/stephanevg/github/PSHTML/PSHTML/PSHTML.psm1: line 1741
at Div, /Users/stephanevg/github/PSHTML/PSHTML/PSHTML.psm1: line 3546
at , : line 1

[Stephanevg]

This simple example illustrates the benefits of adding a try catch statement in the new-pshtmltag function.

div {

        h1 {
            throw
        }
  
}

PS C:\Users\taavast3\OneDrive\Repo\Projects\OpenSource\PesterLove> div {
    h1 {
        throw
    }
}
Exception calling "Invoke" with "0" argument(s): "Exception calling "Invoke" with "0" argument(s): "ScriptHalted""
At C:\Program Files\WindowsPowerShell\Modules\PSHTML\0.8.1\PSHTML.psm1:2178 char:53
+                         $outcontent = $Parameters[$($PostKey)].Invoke ...
+                                                     ~~~~~~~~
+ CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : CmdletInvocationException

with try catch and stacktrace

div {
    try{

        h1 {
            throw
        }
    }catch{
        write-host "plop"
        write-host $_
        $_.ScriptStackTrace | Out-String
    }
}

plop
Exception calling "Invoke" with "0" argument(s): "ScriptHalted"
<div >at Set-HtmlTag<Process>, C:\Program Files\WindowsPowerShell\Modules\PSHTML\0.8.1\PSHTML.psm1: line 2178
at H1<Process>, C:\Program Files\WindowsPowerShell\Modules\PSHTML\0.8.1\PSHTML.psm1: line 4965
at <ScriptBlock>, C:\Users\taavast3\OneDrive\Repo\Projects\OpenSource\PesterLove\DevCode\Demo.ps1: line 26
at Set-HtmlTag<Process>, C:\Program Files\WindowsPowerShell\Modules\PSHTML\0.8.1\PSHTML.psm1: line 2178
at Div<Process>, C:\Program Files\WindowsPowerShell\Modules\PSHTML\0.8.1\PSHTML.psm1: line 3975
at <ScriptBlock>, C:\Users\taavast3\OneDrive\Repo\Projects\OpenSource\PesterLove\DevCode\Demo.ps1: line 23
</div>