Fix character escaping for downlevel template strings

src/compiler/core.ts

@@ -607,7 +607,7 @@ module ts {
     }
 
     var backslashOrDoubleQuote = /[\"\\]/g;
-    var escapedCharsRegExp = /[\0-\19\t\v\f\b\0\r\n\u2028\u2029\u0085]/g;
+    var escapedCharsRegExp = /[\u0000-\u001f\t\v\f\b\r\n\u2028\u2029\u0085]/g;
     var escapedCharsMap: Map<string> = {
         "\0": "\\0",
         "\t": "\\t",
@@ -624,7 +624,7 @@ module ts {
     };
 
     /**
-     * Based heavily on the abstract 'Quote' operation from ECMA-262 (24.3.2.2),
+     * Based heavily on the abstract 'Quote'/ 'QuoteJSONString' operation from ECMA-262 (24.3.2.2),
      * but augmented for a few select characters.
      * Note that this doesn't actually wrap the input in double quotes.
      */

tests/baselines/reference/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01.errors.txt

@@ -0,0 +1,13 @@
+tests/cases/conformance/es6/templates/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01.ts(7,3): error TS1159: Tagged templates are only available when targeting ECMAScript 6 and higher.
+
+
+==== tests/cases/conformance/es6/templates/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01.ts (1 errors) ====
+
+
+    function f(...x: any[]) {
+
+    }
+
+    f `0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n`
+      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS1159: Tagged templates are only available when targeting ECMAScript 6 and higher.

tests/baselines/reference/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01.js

@@ -0,0 +1,17 @@
+//// [taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01.ts]
+
+
+function f(...x: any[]) {
+
+}
+
+f `0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n`
+
+//// [taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01.js]
+function f() {
+    var x = [];
+    for (var _i = 0; _i < arguments.length; _i++) {
+        x[_i - 0] = arguments[_i];
+    }
+}
+f "0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n";

tests/baselines/reference/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01_ES6.js

@@ -0,0 +1,12 @@
+//// [taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01_ES6.ts]
+
+function f(...x: any[]) {
+
+}
+
+f `0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n`
+
+//// [taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01_ES6.js]
+function f(...x) {
+}
+f `0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n`;

tests/baselines/reference/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01_ES6.types

@@ -0,0 +1,11 @@
+=== tests/cases/conformance/es6/templates/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01_ES6.ts ===
+
+function f(...x: any[]) {
+>f : (...x: any[]) => void
+>x : any[]
+
+}
+
+f `0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n`
+>f : (...x: any[]) => void
+

tests/baselines/reference/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes02.js

@@ -0,0 +1,7 @@
+//// [taggedTemplateStringsPlainCharactersThatArePartsOfEscapes02.ts]
+
+
+`0${ " " }1${ " " }2${ " " }3${ " " }4${ " " }5${ " " }6${ " " }7${ " " }8${ " " }9${ " " }10${ " " }11${ " " }12${ " " }13${ " " }14${ " " }15${ " " }16${ " " }17${ " " }18${ " " }19${ " " }20${ " " }2028${ " " }2029${ " " }0085${ " " }t${ " " }v${ " " }f${ " " }b${ " " }r${ " " }n`
+
+//// [taggedTemplateStringsPlainCharactersThatArePartsOfEscapes02.js]
+"0" + " " + "1" + " " + "2" + " " + "3" + " " + "4" + " " + "5" + " " + "6" + " " + "7" + " " + "8" + " " + "9" + " " + "10" + " " + "11" + " " + "12" + " " + "13" + " " + "14" + " " + "15" + " " + "16" + " " + "17" + " " + "18" + " " + "19" + " " + "20" + " " + "2028" + " " + "2029" + " " + "0085" + " " + "t" + " " + "v" + " " + "f" + " " + "b" + " " + "r" + " " + "n";

tests/baselines/reference/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes02.types

@@ -0,0 +1,5 @@
+=== tests/cases/conformance/es6/templates/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes02.ts ===
+
+No type information for this code.
+No type information for this code.`0${ " " }1${ " " }2${ " " }3${ " " }4${ " " }5${ " " }6${ " " }7${ " " }8${ " " }9${ " " }10${ " " }11${ " " }12${ " " }13${ " " }14${ " " }15${ " " }16${ " " }17${ " " }18${ " " }19${ " " }20${ " " }2028${ " " }2029${ " " }0085${ " " }t${ " " }v${ " " }f${ " " }b${ " " }r${ " " }n`
+No type information for this code.

tests/baselines/reference/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes02_ES6.js

@@ -0,0 +1,12 @@
+//// [taggedTemplateStringsPlainCharactersThatArePartsOfEscapes02_ES6.ts]
+
+function f(...x: any[]) {
+
+}
+
+f `0${ " " }1${ " " }2${ " " }3${ " " }4${ " " }5${ " " }6${ " " }7${ " " }8${ " " }9${ " " }10${ " " }11${ " " }12${ " " }13${ " " }14${ " " }15${ " " }16${ " " }17${ " " }18${ " " }19${ " " }20${ " " }2028${ " " }2029${ " " }0085${ " " }t${ " " }v${ " " }f${ " " }b${ " " }r${ " " }n`
+
+//// [taggedTemplateStringsPlainCharactersThatArePartsOfEscapes02_ES6.js]
+function f(...x) {
+}
+f `0${" "}1${" "}2${" "}3${" "}4${" "}5${" "}6${" "}7${" "}8${" "}9${" "}10${" "}11${" "}12${" "}13${" "}14${" "}15${" "}16${" "}17${" "}18${" "}19${" "}20${" "}2028${" "}2029${" "}0085${" "}t${" "}v${" "}f${" "}b${" "}r${" "}n`;

tests/baselines/reference/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes02_ES6.types

@@ -0,0 +1,11 @@
+=== tests/cases/conformance/es6/templates/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes02_ES6.ts ===
+
+function f(...x: any[]) {
+>f : (...x: any[]) => void
+>x : any[]
+
+}
+
+f `0${ " " }1${ " " }2${ " " }3${ " " }4${ " " }5${ " " }6${ " " }7${ " " }8${ " " }9${ " " }10${ " " }11${ " " }12${ " " }13${ " " }14${ " " }15${ " " }16${ " " }17${ " " }18${ " " }19${ " " }20${ " " }2028${ " " }2029${ " " }0085${ " " }t${ " " }v${ " " }f${ " " }b${ " " }r${ " " }n`
+>f : (...x: any[]) => void
+

tests/baselines/reference/templateStringControlCharacterEscapes01.js

@@ -0,0 +1,7 @@
+//// [templateStringControlCharacterEscapes01.ts]
+
+
+var x = `\0\x00\u0000 0 00 0000`;
+
+//// [templateStringControlCharacterEscapes01.js]
+var x = "\0\0\0 0 00 0000";

tests/baselines/reference/templateStringControlCharacterEscapes01.types

@@ -0,0 +1,6 @@
+=== tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes01.ts ===
+
+
+var x = `\0\x00\u0000 0 00 0000`;
+>x : string
+

tests/baselines/reference/templateStringControlCharacterEscapes01_ES6.js

@@ -0,0 +1,6 @@
+//// [templateStringControlCharacterEscapes01_ES6.ts]
+
+var x = `\0\x00\u0000 0 00 0000`;
+
+//// [templateStringControlCharacterEscapes01_ES6.js]
+var x = `\0\x00\u0000 0 00 0000`;

tests/baselines/reference/templateStringControlCharacterEscapes01_ES6.types

@@ -0,0 +1,5 @@
+=== tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes01_ES6.ts ===
+
+var x = `\0\x00\u0000 0 00 0000`;
+>x : string
+

tests/baselines/reference/templateStringControlCharacterEscapes02.js

@@ -0,0 +1,7 @@
+//// [templateStringControlCharacterEscapes02.ts]
+
+
+var x = `\x19\u0019 19`;
+
+//// [templateStringControlCharacterEscapes02.js]
+var x = "\u0019\u0019 19";

tests/baselines/reference/templateStringControlCharacterEscapes02.types

@@ -0,0 +1,6 @@
+=== tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes02.ts ===
+
+
+var x = `\x19\u0019 19`;
+>x : string
+

tests/baselines/reference/templateStringControlCharacterEscapes02_ES6.js

@@ -0,0 +1,6 @@
+//// [templateStringControlCharacterEscapes02_ES6.ts]
+
+var x = `\x19\u0019 19`;
+
+//// [templateStringControlCharacterEscapes02_ES6.js]
+var x = `\x19\u0019 19`;

tests/baselines/reference/templateStringControlCharacterEscapes02_ES6.types

@@ -0,0 +1,5 @@
+=== tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes02_ES6.ts ===
+
+var x = `\x19\u0019 19`;
+>x : string
+

tests/baselines/reference/templateStringControlCharacterEscapes03.js

@@ -0,0 +1,7 @@
+//// [templateStringControlCharacterEscapes03.ts]
+
+
+var x = `\x1F\u001f 1F 1f`;
+
+//// [templateStringControlCharacterEscapes03.js]
+var x = "\u001f\u001f 1F 1f";

tests/baselines/reference/templateStringControlCharacterEscapes03.types

@@ -0,0 +1,6 @@
+=== tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes03.ts ===
+
+
+var x = `\x1F\u001f 1F 1f`;
+>x : string
+

tests/baselines/reference/templateStringControlCharacterEscapes03_ES6.js

@@ -0,0 +1,6 @@
+//// [templateStringControlCharacterEscapes03_ES6.ts]
+
+var x = `\x1F\u001f 1F 1f`;
+
+//// [templateStringControlCharacterEscapes03_ES6.js]
+var x = `\x1F\u001f 1F 1f`;

tests/baselines/reference/templateStringControlCharacterEscapes03_ES6.types

@@ -0,0 +1,5 @@
+=== tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes03_ES6.ts ===
+
+var x = `\x1F\u001f 1F 1f`;
+>x : string
+

tests/baselines/reference/templateStringControlCharacterEscapes04.js

@@ -0,0 +1,7 @@
+//// [templateStringControlCharacterEscapes04.ts]
+
+
+var x = `\x20\u0020 20`;
+
+//// [templateStringControlCharacterEscapes04.js]
+var x = "   20";

tests/baselines/reference/templateStringControlCharacterEscapes04.types

@@ -0,0 +1,6 @@
+=== tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes04.ts ===
+
+
+var x = `\x20\u0020 20`;
+>x : string
+

tests/baselines/reference/templateStringControlCharacterEscapes04_ES6.js

@@ -0,0 +1,6 @@
+//// [templateStringControlCharacterEscapes04_ES6.ts]
+
+var x = `\x20\u0020 20`;
+
+//// [templateStringControlCharacterEscapes04_ES6.js]
+var x = `\x20\u0020 20`;

tests/baselines/reference/templateStringControlCharacterEscapes04_ES6.types

@@ -0,0 +1,5 @@
+=== tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes04_ES6.ts ===
+
+var x = `\x20\u0020 20`;
+>x : string
+

tests/baselines/reference/templateStringPlainCharactersThatArePartsOfEscapes01.js

@@ -0,0 +1,6 @@
+//// [templateStringPlainCharactersThatArePartsOfEscapes01.ts]
+
+`0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n`
+
+//// [templateStringPlainCharactersThatArePartsOfEscapes01.js]
+"0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n";

tests/baselines/reference/templateStringPlainCharactersThatArePartsOfEscapes01.types

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/es6/templates/templateStringPlainCharactersThatArePartsOfEscapes01.ts ===
+
+No type information for this code.`0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n`
+No type information for this code.

tests/baselines/reference/templateStringPlainCharactersThatArePartsOfEscapes01_ES6.js

@@ -0,0 +1,6 @@
+//// [templateStringPlainCharactersThatArePartsOfEscapes01_ES6.ts]
+
+`0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n`
+
+//// [templateStringPlainCharactersThatArePartsOfEscapes01_ES6.js]
+`0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n`;

tests/baselines/reference/templateStringPlainCharactersThatArePartsOfEscapes01_ES6.types

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/es6/templates/templateStringPlainCharactersThatArePartsOfEscapes01_ES6.ts ===
+
+No type information for this code.`0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n`
+No type information for this code.

tests/baselines/reference/templateStringPlainCharactersThatArePartsOfEscapes02.js

@@ -0,0 +1,7 @@
+//// [templateStringPlainCharactersThatArePartsOfEscapes02.ts]
+
+
+`0${ " " }1${ " " }2${ " " }3${ " " }4${ " " }5${ " " }6${ " " }7${ " " }8${ " " }9${ " " }10${ " " }11${ " " }12${ " " }13${ " " }14${ " " }15${ " " }16${ " " }17${ " " }18${ " " }19${ " " }20${ " " }2028${ " " }2029${ " " }0085${ " " }t${ " " }v${ " " }f${ " " }b${ " " }r${ " " }n`
+
+//// [templateStringPlainCharactersThatArePartsOfEscapes02.js]
+"0" + " " + "1" + " " + "2" + " " + "3" + " " + "4" + " " + "5" + " " + "6" + " " + "7" + " " + "8" + " " + "9" + " " + "10" + " " + "11" + " " + "12" + " " + "13" + " " + "14" + " " + "15" + " " + "16" + " " + "17" + " " + "18" + " " + "19" + " " + "20" + " " + "2028" + " " + "2029" + " " + "0085" + " " + "t" + " " + "v" + " " + "f" + " " + "b" + " " + "r" + " " + "n";

tests/baselines/reference/templateStringPlainCharactersThatArePartsOfEscapes02.types

@@ -0,0 +1,5 @@
+=== tests/cases/conformance/es6/templates/templateStringPlainCharactersThatArePartsOfEscapes02.ts ===
+
+No type information for this code.
+No type information for this code.`0${ " " }1${ " " }2${ " " }3${ " " }4${ " " }5${ " " }6${ " " }7${ " " }8${ " " }9${ " " }10${ " " }11${ " " }12${ " " }13${ " " }14${ " " }15${ " " }16${ " " }17${ " " }18${ " " }19${ " " }20${ " " }2028${ " " }2029${ " " }0085${ " " }t${ " " }v${ " " }f${ " " }b${ " " }r${ " " }n`
+No type information for this code.

tests/baselines/reference/templateStringPlainCharactersThatArePartsOfEscapes02_ES6.js

@@ -0,0 +1,6 @@
+//// [templateStringPlainCharactersThatArePartsOfEscapes02_ES6.ts]
+
+`0${ " " }1${ " " }2${ " " }3${ " " }4${ " " }5${ " " }6${ " " }7${ " " }8${ " " }9${ " " }10${ " " }11${ " " }12${ " " }13${ " " }14${ " " }15${ " " }16${ " " }17${ " " }18${ " " }19${ " " }20${ " " }2028${ " " }2029${ " " }0085${ " " }t${ " " }v${ " " }f${ " " }b${ " " }r${ " " }n`
+
+//// [templateStringPlainCharactersThatArePartsOfEscapes02_ES6.js]
+`0${" "}1${" "}2${" "}3${" "}4${" "}5${" "}6${" "}7${" "}8${" "}9${" "}10${" "}11${" "}12${" "}13${" "}14${" "}15${" "}16${" "}17${" "}18${" "}19${" "}20${" "}2028${" "}2029${" "}0085${" "}t${" "}v${" "}f${" "}b${" "}r${" "}n`;

tests/baselines/reference/templateStringPlainCharactersThatArePartsOfEscapes02_ES6.types

@@ -0,0 +1,4 @@
+=== tests/cases/conformance/es6/templates/templateStringPlainCharactersThatArePartsOfEscapes02_ES6.ts ===
+
+No type information for this code.`0${ " " }1${ " " }2${ " " }3${ " " }4${ " " }5${ " " }6${ " " }7${ " " }8${ " " }9${ " " }10${ " " }11${ " " }12${ " " }13${ " " }14${ " " }15${ " " }16${ " " }17${ " " }18${ " " }19${ " " }20${ " " }2028${ " " }2029${ " " }0085${ " " }t${ " " }v${ " " }f${ " " }b${ " " }r${ " " }n`
+No type information for this code.

tests/cases/conformance/es6/templates/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01.ts

@@ -0,0 +1,7 @@
+
+
+function f(...x: any[]) {
+
+}
+
+f `0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n`

tests/cases/conformance/es6/templates/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes01_ES6.ts

@@ -0,0 +1,7 @@
+// @target: es6
+
+function f(...x: any[]) {
+
+}
+
+f `0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n`

tests/cases/conformance/es6/templates/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes02.ts

@@ -0,0 +1,3 @@
+
+
+`0${ " " }1${ " " }2${ " " }3${ " " }4${ " " }5${ " " }6${ " " }7${ " " }8${ " " }9${ " " }10${ " " }11${ " " }12${ " " }13${ " " }14${ " " }15${ " " }16${ " " }17${ " " }18${ " " }19${ " " }20${ " " }2028${ " " }2029${ " " }0085${ " " }t${ " " }v${ " " }f${ " " }b${ " " }r${ " " }n`

tests/cases/conformance/es6/templates/taggedTemplateStringsPlainCharactersThatArePartsOfEscapes02_ES6.ts

@@ -0,0 +1,7 @@
+// @target: es6
+
+function f(...x: any[]) {
+
+}
+
+f `0${ " " }1${ " " }2${ " " }3${ " " }4${ " " }5${ " " }6${ " " }7${ " " }8${ " " }9${ " " }10${ " " }11${ " " }12${ " " }13${ " " }14${ " " }15${ " " }16${ " " }17${ " " }18${ " " }19${ " " }20${ " " }2028${ " " }2029${ " " }0085${ " " }t${ " " }v${ " " }f${ " " }b${ " " }r${ " " }n`

tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes01.ts

@@ -0,0 +1,3 @@
+
+
+var x = `\0\x00\u0000 0 00 0000`;

tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes01_ES6.ts

@@ -0,0 +1,3 @@
+// @target: es6
+
+var x = `\0\x00\u0000 0 00 0000`;

tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes02.ts

@@ -0,0 +1,3 @@
+
+
+var x = `\x19\u0019 19`;

tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes02_ES6.ts

@@ -0,0 +1,3 @@
+// @target: es6
+
+var x = `\x19\u0019 19`;

tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes03.ts

@@ -0,0 +1,3 @@
+
+
+var x = `\x1F\u001f 1F 1f`;

tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes03_ES6.ts

@@ -0,0 +1,3 @@
+// @target: es6
+
+var x = `\x1F\u001f 1F 1f`;

tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes04.ts

@@ -0,0 +1,3 @@
+
+
+var x = `\x20\u0020 20`;

tests/cases/conformance/es6/templates/templateStringControlCharacterEscapes04_ES6.ts

@@ -0,0 +1,3 @@
+// @target: es6
+
+var x = `\x20\u0020 20`;

tests/cases/conformance/es6/templates/templateStringPlainCharactersThatArePartsOfEscapes01.ts

@@ -0,0 +1,2 @@
+
+`0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n`

tests/cases/conformance/es6/templates/templateStringPlainCharactersThatArePartsOfEscapes01_ES6.ts

@@ -0,0 +1,3 @@
+// @target: es6
+
+`0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2028 2029 0085 t v f b r n`

tests/cases/conformance/es6/templates/templateStringPlainCharactersThatArePartsOfEscapes02.ts

@@ -0,0 +1,3 @@
+
+
+`0${ " " }1${ " " }2${ " " }3${ " " }4${ " " }5${ " " }6${ " " }7${ " " }8${ " " }9${ " " }10${ " " }11${ " " }12${ " " }13${ " " }14${ " " }15${ " " }16${ " " }17${ " " }18${ " " }19${ " " }20${ " " }2028${ " " }2029${ " " }0085${ " " }t${ " " }v${ " " }f${ " " }b${ " " }r${ " " }n`

tests/cases/conformance/es6/templates/templateStringPlainCharactersThatArePartsOfEscapes02_ES6.ts

@@ -0,0 +1,3 @@
+// @target: es6
+
+`0${ " " }1${ " " }2${ " " }3${ " " }4${ " " }5${ " " }6${ " " }7${ " " }8${ " " }9${ " " }10${ " " }11${ " " }12${ " " }13${ " " }14${ " " }15${ " " }16${ " " }17${ " " }18${ " " }19${ " " }20${ " " }2028${ " " }2029${ " " }0085${ " " }t${ " " }v${ " " }f${ " " }b${ " " }r${ " " }n`