fix: eval math for non-numerical val wrapped in spaces

.changeset/pretty-ghosts-visit.md

@@ -0,0 +1,5 @@
+---
+'@tokens-studio/sd-transforms': patch
+---
+
+Hotfix for evaluate math of values that have non-numericals wrapped in spaces.

src/checkAndEvaluateMath.ts

@@ -97,7 +97,9 @@ function parseAndReduce(expr: string): string {
     return expr;
   }
   // Put back the px unit if needed and if reduced doesn't come with one
-  return `${Number.parseFloat(evaluated.toFixed(3))}${unit ?? (hasPx ? 'px' : '')}`;
+  return `${typeof evaluated !== 'string' ? Number.parseFloat(evaluated.toFixed(3)) : evaluated}${
+    unit ?? (hasPx ? 'px' : '')
+  }`;
 }
 
 export function checkAndEvaluateMath(expr: string | number | undefined): string | undefined {

test/spec/checkAndEvaluateMath.spec.ts

@@ -63,4 +63,8 @@ describe('check and evaluate math', () => {
       `800 italic 16px/1 'Arial Black'`,
     );
   });
+
+  it('supports values that contain spaces and strings, e.g. a date format', () => {
+    expect(checkAndEvaluateMath(`dd/MM/yyyy 'om' HH:mm`)).to.equal(`dd/MM/yyyy om HH:mm`);
+  });
 });