first commit

build/node_modules/postcss-value-parser/lib/unit.js

@@ -0,0 +1,41 @@
+var minus = '-'.charCodeAt(0);
+var plus  = '+'.charCodeAt(0);
+var dot   = '.'.charCodeAt(0);
+
+module.exports = function (value) {
+    var pos = 0;
+    var length = value.length;
+    var dotted = false;
+    var containsNumber = false;
+    var code;
+    var number = '';
+
+    while (pos < length) {
+        code = value.charCodeAt(pos);
+
+        if (code >= 48 && code <= 57) {
+            number += value[pos];
+            containsNumber = true;
+        } else if (code === dot) {
+            if (dotted) {
+                break;
+            }
+            dotted = true;
+            number += value[pos];
+        } else if (code === plus || code === minus) {
+            if (pos !== 0) {
+                break;
+            }
+            number += value[pos];
+        } else {
+            break;
+        }
+
+        pos += 1;
+    }
+
+    return containsNumber ? {
+        number: number,
+        unit: value.slice(pos)
+    } : false;
+};