Allow css-style .5 numbers

Author: jacobp100

src/grammar.ne

@@ -49,8 +49,14 @@
   };
 %}
 
+int
+  -> "0" | [1-9] [0-9]:*
+
+decimal
+  -> "." [0-9]:+
+
 number
-  -> "-":? ([0-9]:? "." [0-9]:+ | [1-9] [0-9]:* ("." [0-9]:+):? | "0") {% d => Number(text(d)) %}
+  -> "-":? (int decimal | int | decimal) {% d => Number(text(d)) %}
 
 angle -> number ("deg" | "rad") {% text %}
 

src/index.test.js

@@ -22,6 +22,8 @@ it('allows decimal values', () => {
   expect(parseProp('number', '-1.5')).toBe(-1.5);
   expect(parseProp('number', '-10.5')).toBe(-10.5);
   expect(parseProp('number', '-100.5')).toBe(-100.5);
+  expect(parseProp('number', '.5')).toBe(0.5);
+  expect(parseProp('number', '-.5')).toBe(-0.5);
 });
 
 it('allows decimal values in transformed values', () => runTest([