Unbalanced brackets in template casue exception

[metadatadriven]

An unbalanced bracket in the template (not the powershell expression) causes an exception. For example, adding ( to the first example in the README:

$name = "Dave"
Invoke-EpsTemplate -Template 'Hello ( <%= $name %>!'

Results in the following:

New-EpsTemplateScript : Exception calling "Create" with "1" argument(s): "At line:2 char:7
+ [void]$(
+       ~~
$(subexpression) is missing the closing ')'.

[anttiah]

Just found this handy module, but not being able to have unbalanced parenthesis in a template is indeed big oversight. Would it be possible to wrap contents of the innermost [stringbuilder] inside a pair of ' (single quotes)?

Edit: Looks like a PowerShell parser error (or feature). It gets confused when multiline [void]$( ... ) subexpression contains parenthesis, even if it's enclosed in double quotes:

eps/EPS/New-EpsTemplateScript.ps1

Line 16 in b5c4d2b

Append("[void]`$(`n")

This can be fixed by removing [void]$( ... ) from the dynamically created scripblock, and adding [void]s to individual $sb.Append() statements:

---
 EPS/New-EpsTemplateScript.ps1 | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/EPS/New-EpsTemplateScript.ps1 b/EPS/New-EpsTemplateScript.ps1
index a1a4a15..780b424 100644
--- a/EPS/New-EpsTemplateScript.ps1
+++ b/EPS/New-EpsTemplateScript.ps1
@@ -12,8 +12,7 @@ function New-EpsTemplateScript {
 
     function Add-Prolog {
         [void]$StringBuilder.`
-            Append("`$sb = New-Object -TypeName 'System.Text.StringBuilder'`n").`
-            Append("[void]`$(`n")
+            Append("`$sb = New-Object -TypeName 'System.Text.StringBuilder'`n")
     }
 
     function Add-String {
@@ -21,7 +20,7 @@ function New-EpsTemplateScript {
 
         if ($Value) {
             $Value = $Value -replace '([`"$])', '`$1'
-            [void]$StringBuilder.Append(";`$sb.Append(`"").Append($Value).Append("`");")
+            [void]$StringBuilder.Append(";[void]`$sb.Append(`"").Append($Value).Append("`");")
         }
     }
 
@@ -41,7 +40,7 @@ function New-EpsTemplateScript {
         } else {$Value}
 
         [void]$StringBuilder.`
-            Append("`$sb.Append(`"`$(").`
+            Append("[void]`$sb.Append(`"`$(").`
             Append($Value.Replace('""', '`"`"')).`
             Append(")`");")
     }
@@ -53,7 +52,7 @@ function New-EpsTemplateScript {
     }
 
     function Add-Epilog {
-        [void]$StringBuilder.Append("`n)`n`$sb.ToString()")
+        [void]$StringBuilder.Append("`n`$sb.ToString()")
     }
 
     Add-Prolog
--