allow escape sequences outside strings (needed for 'argument mode' parsing)

--HG--
branch : next

Author: guillermooo

Support/PowershellSyntax.JSON-tmLanguage

@@ -39,7 +39,7 @@
 			"include": "#scriptblock"
 		},
 		{
-			"begin": "(?<!\")\"",
+			"begin": "(?<!(?<!`)\")\"",
 			"end": "\"(?!\")",
 			"name": "string.quoted.double.powershell",
 			"patterns": [
@@ -58,6 +58,9 @@
 				}
 			]
 		},
+		{ "include": "#doubleQuotedStringEscapes",
+		  "comment": "Needed to parse stuff correctly in 'argument mode'. (See about_parsing.)"
+		},
 		{
 			"begin": "(?<!')'",
 			"end": "'(?!')",

Support/PowershellSyntax.tmLanguage

@@ -68,7 +68,7 @@
 		</dict>
 		<dict>
 			<key>begin</key>
-			<string>(?&lt;!")"</string>
+			<string>(?&lt;!(?&lt;!`)")"</string>
 			<key>end</key>
 			<string>"(?!")</string>
 			<key>name</key>
@@ -95,6 +95,12 @@
 				</dict>
 			</array>
 		</dict>
+		<dict>
+			<key>comment</key>
+			<string>Needed to parse stuff correctly in 'argument mode'. (See about_parsing.)</string>
+			<key>include</key>
+			<string>#doubleQuotedStringEscapes</string>
+		</dict>
 		<dict>
 			<key>begin</key>
 			<string>(?&lt;!')'</string>

bin/test-file.ps1

@@ -3,7 +3,7 @@
 <#
     Let's see what embedded docs in comments look like...
     TODO: inside here, .<tab> should present list of doc keywords
-    
+
     .synopsis
     this is some text
 
@@ -49,6 +49,7 @@ string.'
 "Escaped chars: `", `n, `$, `b, `""
 
 """This is a string."""
+`""This is a string."`"
 
 # Subexpressions cause powershell to reparse, so double quotes are ok.
 "String with embedded complex subexpression: $(get-item "$mypath/*.*" | out-string)."
@@ -65,7 +66,7 @@ string.'
 # FIXME: Wrong parens syled.
 "This is deeply nested: $( stuff-here | %{ why-would { $( ("you, do this anyway")) } } )"
 
-"This string is 
+"This string is
 valid"
 
 "This string is `
@@ -74,7 +75,7 @@ valid but the ` is consumed."
 "This string is ``
 valid but the ` isn't consumed."
 
-"This string is ` 
+"This string is `
 valid. There's a space at the end."
 
 'This is a valid `
@@ -191,7 +192,7 @@ What the heck?
             "something $_"
 }
 "This should $a not be a {scriptblock}"
-{ this-is $(it-at | ) 
+{ this-is $(it-at | )
 }