.

node_modules/ts-jest/node_modules/camelcase/index.js

@@ -0,0 +1,64 @@
+'use strict';
+
+function preserveCamelCase(str) {
+	let isLastCharLower = false;
+	let isLastCharUpper = false;
+	let isLastLastCharUpper = false;
+
+	for (let i = 0; i < str.length; i++) {
+		const c = str[i];
+
+		if (isLastCharLower && /[a-zA-Z]/.test(c) && c.toUpperCase() === c) {
+			str = str.substr(0, i) + '-' + str.substr(i);
+			isLastCharLower = false;
+			isLastLastCharUpper = isLastCharUpper;
+			isLastCharUpper = true;
+			i++;
+		} else if (isLastCharUpper && isLastLastCharUpper && /[a-zA-Z]/.test(c) && c.toLowerCase() === c) {
+			str = str.substr(0, i - 1) + '-' + str.substr(i - 1);
+			isLastLastCharUpper = isLastCharUpper;
+			isLastCharUpper = false;
+			isLastCharLower = true;
+		} else {
+			isLastCharLower = c.toLowerCase() === c;
+			isLastLastCharUpper = isLastCharUpper;
+			isLastCharUpper = c.toUpperCase() === c;
+		}
+	}
+
+	return str;
+}
+
+module.exports = function (str) {
+	if (arguments.length > 1) {
+		str = Array.from(arguments)
+			.map(x => x.trim())
+			.filter(x => x.length)
+			.join('-');
+	} else {
+		str = str.trim();
+	}
+
+	if (str.length === 0) {
+		return '';
+	}
+
+	if (str.length === 1) {
+		return str.toLowerCase();
+	}
+
+	if (/^[a-z0-9]+$/.test(str)) {
+		return str;
+	}
+
+	const hasUpperCase = str !== str.toLowerCase();
+
+	if (hasUpperCase) {
+		str = preserveCamelCase(str);
+	}
+
+	return str
+		.replace(/^[_.\- ]+/, '')
+		.toLowerCase()
+		.replace(/[_.\- ]+(\w|$)/g, (m, p1) => p1.toUpperCase());
+};