Merge pull request #12722 from calixteman/printf

JS -- fix printd issue with negative number

src/scripting_api/util.js

@@ -154,9 +154,9 @@ class Util extends PDFObject {
         let decPart = "";
         if (cConvChar === "f") {
           if (nPrecision !== undefined) {
-            decPart = (arg - intPart).toFixed(nPrecision);
+            decPart = Math.abs(arg - intPart).toFixed(nPrecision);
           } else {
-            decPart = (arg - intPart).toString();
+            decPart = Math.abs(arg - intPart).toString();
           }
           if (decPart.length > 2) {
             decPart = `${decimalSep}${decPart.substring(2)}`;

test/unit/scripting_spec.js

@@ -209,6 +209,11 @@ describe("Scripting", function () {
               expect(value).toEqual("Decimal number: +  1.235");
             }
           ),
+          myeval(`util.printf("Decimal number: %,0.2f", -12.34567)`).then(
+            value => {
+              expect(value).toEqual("Decimal number: -12.35");
+            }
+          ),
         ]).then(() => done());
       });