Improve number handling for amount with leading decimal point.

packages/loot-core/src/shared/util.test.ts

@@ -37,6 +37,11 @@ describe('utility functions', () => {
     expect(looselyParseAmount('(3)')).toBe(-3);
   });
 
+  test('looseParseAmount works with leading decimal characters', () => {
+    expect(looselyParseAmount('.45')).toBe(0.45);
+    expect(looselyParseAmount(',45')).toBe(0.45);
+  });
+
   test('looseParseAmount ignores non-numeric characters', () => {
     // This is strange behavior because it does not work for just
     // `3_45_23` (it needs a decimal amount). This function should be

packages/loot-core/src/shared/util.ts

@@ -412,10 +412,15 @@ export function looselyParseAmount(amount: string) {
   // Look for a decimal marker, then look for either 1-2 or 5-9 decimal places.
   // This avoids matching against 3 places which may not actually be decimal
   const m = amount.match(/[.,]([^.,]{5,9}|[^.,]{1,2})$/);
-  if (!m || m.index === undefined || m.index === 0) {
+  if (!m || m.index === undefined) {
     return safeNumber(parseFloat(extractNumbers(amount)));
   }
 
+  // for numbers starting with a decimal marker
+  if (m.index === 0) {
+    amount = '0' + amount;
+  }
+
   const left = extractNumbers(amount.slice(0, m.index));
   const right = extractNumbers(amount.slice(m.index + 1));
 

upcoming-release-notes/3096.md

@@ -0,0 +1,6 @@
+---
+category: Bugfix
+authors: [wdpk]
+---
+
+Improve number handling to handle leading decimal places.