HLDS: change :: to double space and require it

Require double space before tags and price, like in the plain text
accounting format of ledger. This makes it easier to differentiate
between prices mentioned in descriptions and the price for the dish.

app/hlds/hlds.tatsu

@@ -29,10 +29,12 @@ location = >location_header items:{ block } ;
 
 
 attributes =
-	name:/[^\n#]*?(?= +-- | +:: | +€ | *\n| *#)/
-	[ s '--' ~ s description:/[^\n#]*?(?= +:: | +€ | *\n| *#)/ ]
-	[ s '::' {s ('{' tags+:identifier '}')} ]
-	[ [ s '::' ~ ] s price:price ]
+	name:/[^\n#]*?(?= +-- |  | *\n| *#)/
+	[ s '--' ~ s description:/[^\n#]*?(?=  | *\n| *#)/ ]
+	[ / {2,}/ ~
+		[ {[ s ] ('{' tags+:identifier '}')} / +|$/ ]
+		[ price:price ]
+	]
 	;
 
 
@@ -73,7 +75,7 @@ indent_choice_block =
 	;
 
 
-s = / +/ ;
+s  = / +/ ;
 n = '\n' {{'\t'} '\n'} ;
 
 @name

etc/vim/ftplugin.vim

@@ -1 +1,2 @@
 setlocal noexpandtab
+setlocal softtabstop=0

etc/vim/syntax.vim

@@ -25,8 +25,9 @@ syn keyword hldsChoiceType    single_choice multi_choice nextgroup=hldsBlockIdAf
 syn match   hldsBlockId          "^[a-z0-9_-]\+: "
 syn match   hldsBlockIdAftrKywrd "[a-z0-9_-]\+: " contained
 
-syn match   hldsTag       " {[a-z0-9_-]\+}"
-syn match   hldsPrice     "€ *[0-9]\+\(\.[0-9]\+\|\)"
+syn match   _doubleSpace  "  \+" nextgroup=hldsTag,hldsPrice
+syn match   hldsTag       "{[a-z0-9_-]\+}\( \|$\)"            contained nextgroup=hldsTag,hldsPrice
+syn match   hldsPrice     "€ *[0-9]\+\(\.[0-9]\+\|\)\( \|$\)" contained
 
 syn match   hldsComment       "#.*$" contains=hldsTodo,@Spell
 syn keyword hldsTodo          FIXME NOTE NOTES TODO XXX contained

etc/vscode/syntaxes/hlds.tmLanguage.json

@@ -33,13 +33,8 @@
 		"tags": {
 			"patterns": [
 				{
-					"match": "(::)\\s*({[a-zA-Z-_]*}\\s*)*",
-					"name": "markup.italic",
-					"captures": {
-						"1": {
-							"name": "markup.bold"
-						}
-					}
+					"match": " +( +{[a-zA-Z-_]*})*",
+					"name": "markup.italic"
 				}
 			]
 		},
@@ -94,4 +89,4 @@
 		}
 	},
 	"scopeName": "source.hlds"
-}
+}