Parser: fix is_num() and is_ident() checks to use the current codepoint as the first character. Fixes #204.

Author: danburzo

docs/resources.md

@@ -55,5 +55,6 @@ In other languages:
 
 ### Books
 
--   [Fairchild, Mark D.](http://markfairchild.org/) — _Color Appearance Models_, 3rd Edition, Wiley-IS&T, Chichester, UK (2013); ISBN 978-1-119-96703-3
--   [Poynton, Charles](http://poynton.ca/) — _Digital Video and HD Algorithms and Interfaces_, Second edition (Burlington, Mass.: Morgan Kaufmann/Elsevier, 2012)
+-   [Fairchild, Mark D.](http://markfairchild.org/) — [_Color Appearance Models_](https://www.wiley.com/en-us/Color+Appearance+Models%2C+3rd+Edition-p-9781119967033), 3rd Edition, Wiley, 2013.
+- Morovič, Ján — [_Color Gamut Mapping_](https://www.wiley.com/en-ie/Color+Gamut+Mapping-p-9780470030325), Wiley, 2008.
+-   [Poynton, Charles](http://poynton.ca/) — [_Digital Video and HD Algorithms and Interfaces_](https://www.elsevier.com/books/digital-video-and-hd/poynton/978-0-12-391926-7), 2nd Edition, Morgan Kaufmann, 2012.

src/parse.js

@@ -176,30 +176,30 @@ export function tokenize(str = '') {
 		}
 
 		if (ch === '+') {
+			_i--;
 			if (is_num(chars)) {
-				_i--;
 				tokens.push(num(chars));
 				continue;
 			}
 			return undefined;
 		}
 
 		if (ch === '-') {
+			_i--;
 			if (is_num(chars)) {
-				_i--;
 				tokens.push(num(chars));
 				continue;
-			} else if (is_ident(chars)) {
-				_i--;
+			}
+			if (is_ident(chars)) {
 				tokens.push({ type: Tok.Ident, value: ident(chars) });
 				continue;
 			}
 			return undefined;
 		}
 
 		if (ch === '.') {
+			_i--;
 			if (is_num(chars)) {
-				_i--;
 				tokens.push(num(chars));
 				continue;
 			}

test/parse.test.js

@@ -300,3 +300,8 @@ tape('undefined', function (test) {
 	test.equal(parse(undefined), undefined);
 	test.end();
 });
+
+tape('Issue #204', function (test) {
+	test.equal(parse('oklch(70% 0..1 156)'), undefined);
+	test.end();
+});