1 files changed, 109 insertions, 0 deletions
diff --git a/stylis.js/src/Utility.js b/stylis.js/src/Utility.js
new file mode 100644
index 0000000..f29590e
--- /dev/null
+++ b/stylis.js/src/Utility.js
@@ -0,0 +1,109 @@
+/**
+ * @param {number}
+ * @return {number}
+ */
+export var abs = Math.abs
+
+/**
+ * @param {number}
+ * @return {string}
+ */
+export var from = String.fromCharCode
+
+/**
+ * @param {string} value
+ * @param {number} length
+ * @return {number}
+ */
+export function hash (value, length) {
+	return (((((((length << 2) ^ charat(value, 0)) << 2) ^ charat(value, 1)) << 2) ^ charat(value, 2)) << 2) ^ charat(value, 3)
+}
+
+/**
+ * @param {string} value
+ * @return {string}
+ */
+export function trim (value) {
+	return value.trim()
+}
+
+/**
+ * @param {string} value
+ * @param {RegExp} pattern
+ * @return {string?}
+ */
+export function match (value, pattern) {
+	return (value = pattern.exec(value)) ? value[0] : value
+}
+
+/**
+ * @param {string} value
+ * @param {(string|RegExp)} pattern
+ * @param {string} replacement
+ * @return {string}
+ */
+export function replace (value, pattern, replacement) {
+	return value.replace(pattern, replacement)
+}
+
+/**
+ * @param {string} value
+ * @param {string} value
+ * @return {number}
+ */
+export function indexof (value, search) {
+	return value.indexOf(search)
+}
+
+/**
+ * @param {string} value
+ * @param {number} index
+ * @return {number}
+ */
+export function charat (value, index) {
+	return value.charCodeAt(index) | 0
+}
+
+/**
+ * @param {string} value
+ * @param {number} begin
+ * @param {number} end
+ * @return {string}
+ */
+export function substr (value, begin, end) {
+	return value.slice(begin, end)
+}
+
+/**
+ * @param {string} value
+ * @return {number}
+ */
+export function strlen (value) {
+	return value.length
+}
+
+/**
+ * @param {any[]} value
+ * @return {number}
+ */
+export function sizeof (value) {
+	return value.length
+}
+
+/**
+ * @param {any} value
+ * @param {any[]} array
+ * @return {any}
+ */
+export function append (value, array) {
+	return array.push(value), value
+}
+
+/**
+ * @param {string[]} array
+ * @param {function} callback
+ * @return {string}
+ */
+export function combine (array, callback) {
+	return array.map(callback).join('')
+}