The Twelve days of PowerShell 2.0 CTP3!

by oising 23. December 2008 21:16

Just to be completely silly, I thought I’d do a series of posts on CTP3 features themed around Christmas. Hmm. That might read better as a series of Christmas posts themed around CTP3. A very original idea I’m sure, but hey, those who know me will know that I never pass up the opportunity to make a bad joke. So, without further adieu:

On the first day of Christmas, Jeffrey gave to me:

Nested Here-Strings

Here-Strings can now be embedded within each other to make it even easier to construct literal documents! Delimit any nested code between $( and ) and then continue to use a nested string within that as if it was completely stand alone. It just works! Cool, eh?

  1. function Get-CommandDefinitionHtml {  
  2.       
  3.     # this tells powershell to allow advanced features,  
  4.     # like the [validatenotnullorempty()] attribute below.  
  5.     [CmdletBinding()]  
  6.     param(  
  7.         [ValidateNotNullOrEmpty()]  
  8.         [string]$name 
  9.     )  
  10.  
  11.     $command = get-command $name 
  12.       
  13.     # Look mom! I'm a cmdlet!  
  14.     $PSCmdlet.WriteVerbose("Dumping HTML for " + $command)  
  15.       
  16. @"  
  17.     <html>  
  18.         <head>  
  19.             <title>$($command.name)</title>  
  20.         </head>  
  21.         <body>  
  22.             <table border="1">  
  23. $(  
  24.     $command.parametersets | % {  
  25. @" 
  26.  
  27.             <tr>  
  28.                 <td>$($_.name)</td>  
  29.                 <td>  
  30.                     <table border="1">  
  31.                         <tr>  
  32.                             <th colspan="8">Parameters</th>  
  33.                               
  34. $(  
  35.         $count = 0  
  36.         $_.parameters | % {  
  37.             if (0 -eq ($count % 8)) {  
  38. @"  
  39.                         </tr>  
  40.                         <tr>  
  41. "@  
  42.             }                  
  43. @"  
  44.                             <td>$($_.name)</td>  
  45. "@              
  46.             $count++  
  47.     }  
  48. )  
  49.                         </tr>                          
  50.                     </table>  
  51.                 </td>  
  52.             </tr>  
  53. "@  
  54.     }  
  55. )  
  56.             </table>          
  57.         </body>  
  58.     </html>  
  59. "@      
  60. }  
  61.  
  62. Get-CommandDefinitionHtml get-item > out.html  
  63.  
  64. # show in browser  
  65. invoke-item out.html 

Tags:

.NET | Cmdlets | CTP3 | PowerShell | PowerShell 2.0

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About the author

Oisin Grehan lives in Montreal, Canada and builds all sorts of crap for all sorts of people.

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