1 files changed, 74 insertions, 0 deletions
diff --git a/stories/react/utils/jsxToString.js b/stories/react/utils/jsxToString.js
new file mode 100644
index 0000000..8b799ad
--- /dev/null
+++ b/stories/react/utils/jsxToString.js
@@ -0,0 +1,74 @@
+import React, {Children} from 'react';
+
+const INDENT = '   ';
+
+function stringRepresentationForJsx(item) {
+	if (typeof item === 'string') {
+		return `'${item}'`;
+	} else if (typeof item === 'number') {
+		return item.toString();
+	} else if (Array.isArray(item)) {
+		return `[${item.map(val => stringRepresentationForJsx(val)).toString()}]`;
+	}
+	else if (typeof item === 'boolean') {
+		return item.toString();
+	}
+	else if (typeof item === 'function') {
+		return item.toString().replace(/\s{2,}/g, ' ');
+	} else if (typeof item === 'object') {
+		let repr = '{';
+		for (let key in item) {
+			if (item.hasOwnProperty(key)) {
+				repr += `${key}: ${stringRepresentationForJsx(item[key])}, `;
+			}
+		}
+		repr = repr.slice(0, -2);
+		repr += '}';
+		return repr;
+	}
+}
+
+function parseProps(jsx, indentCount) {
+	let result = '';
+	for (let prop in jsx.props) {
+		let value = jsx.props[prop];
+		if (prop !== 'children' && value) {
+			let repr = stringRepresentationForJsx(value);
+			let isString = repr.startsWith("'");
+			result += `\n${INDENT.repeat(indentCount)}${prop}`;
+			if (value !== true) {
+				result += `=${isString ? '' : '{ '}${stringRepresentationForJsx(value)}${isString ? '' : ' }'}`;
+			}
+		}
+	}
+	return result;
+}
+
+function jsxToString({jsx, indentCount=0, exclude}) {
+	if (typeof jsx === 'string'){
+		return jsx;
+	}
+	
+	let name = typeof jsx.type === 'string' ? jsx.type : jsx.type.name;	
+	let result = name === exclude ? ''
+		: `${INDENT.repeat(indentCount)}<${name}${parseProps(jsx, indentCount + 1)}`;
+
+	if (jsx.props.hasOwnProperty('children')) {
+		let {children} = jsx.props;
+		let childrenArr = Children.toArray(children);
+		if (name !== exclude) { result += '>\n';}
+		if (typeof children === 'string') {
+			result += `${INDENT.repeat(indentCount + 1)}${children}\n`;
+		} else {
+			let newIndentCount = name === exclude ? indentCount : indentCount + 1;
+			childrenArr.forEach(child => result += `${jsxToString({jsx: child, indentCount: newIndentCount})}\n`);
+		}
+		const closingTag = name === exclude ? '' 
+			: `${INDENT.repeat(indentCount)}</${name}>`;
+		return result + closingTag;
+	}
+
+	return result + ' />';
+}
+
+export default jsxToString;