diff --git a/src/utils/parsing.ts b/src/utils/parsing.ts
index 00b8d15..a151d3e 100644
--- a/src/utils/parsing.ts
+++ b/src/utils/parsing.ts
@@ -7,7 +7,7 @@ import { RGBColor } from './rgbcolor'
 
 export function parseFloats(str: string): number[] {
   const floats = []
-  const regex = /[+-]?(?:(?:\d+\.?\d*)|(?:\d*\.?\d+))(?:[eE][+-]?\d+)?/g
+  const regex = /[+-]?(?:\d+\.?\d*|\.\d+)(?:[eE][+-]?\d+)?/g
   let match
   while ((match = regex.exec(str))) {
     floats.push(parseFloat(match[0]))
diff --git a/test/parsing/parsing.spec.ts b/test/parsing/parsing.spec.ts
new file mode 100644
index 0000000..2fe8f2a
--- /dev/null
+++ b/test/parsing/parsing.spec.ts
@@ -0,0 +1,20 @@
+import { describe, expect, it } from 'vitest'
+import { parseFloats } from '../../src/utils/parsing.ts'
+
+describe('parseFloats', () => {
+  it('returns an empty array when the input contains no numbers', () => {
+    expect(parseFloats('')).toEqual([])
+  })
+
+  it('parses comma-, whitespace-, and sign-separated numbers', () => {
+    expect(parseFloats('10, 20 30-40+50')).toEqual([10, 20, 30, -40, 50])
+  })
+
+  it('parses integers, decimal forms, and scientific notation', () => {
+    expect(parseFloats('1.5 .25 2. 1e3 -2.5E-2 +4e+1')).toEqual([1.5, 0.25, 2, 1000, -0.025, 40])
+  })
+
+  it('has linear runtime complexity', { timeout: 100 }, () => {
+    expect(parseFloats('1'.repeat(10000) + '!')).to.toHaveLength(1)
+  })
+})