gistfile1.txt

location /image/ {
	# Support 100w100h and w100h100
	
	rewrite ^\/image\/([^\/]+)\/w(\d+)$ /image/$1/$2w;
	rewrite ^\/image\/([^\/]+)\/h(\d+)$ /image/$1/$2h;
	rewrite ^\/image\/([^\/]+)\/w(\d+)\/h(\d+)$ /image/$1/$2w/$3h;
	
	rewrite ^\/image\/([^\/]+)\/([^\/]+)\/w(\d+)$ /image/$1/$2/$3w;
	rewrite ^\/image\/([^\/]+)\/([^\/]+)\/h(\d+)$ /image/$1/$2/$3h;
	rewrite ^\/image\/([^\/]+)\/([^\/]+)\/w(\d+)\/h(\d+)$ /image/$1/$2/$3w/$4h;
	
	# Support direct access
	
	rewrite ^\/image\/(..)(..)([^\/\.]+)((\.|\/)jpeg)$ /ResizedImage/orig/$1/$2/$1$2$3.jpeg;
	rewrite ^\/image\/(..)(..)([^\/\.]+)((\.|\/)png)$ /ResizedImage/orig/$1/$2/$1$2$3.png;
	rewrite ^\/image\/(..)(..)([^\/\.]+)((\.|\/)gif)$ /ResizedImage/orig/$1/$2/$1$2$3.gif;
	
	# Support resized URLs
	
	rewrite ^\/image\/(..)(..)([^\/\.]+)(\.(jpeg|jpg))?(\/(jpeg|jpg))?(?:\/(\d+w))?(?:\/(\d+h))?$ /ResizedImage/$8$9/$1/$2/$1$2$3.jpeg;
	rewrite ^\/image\/(..)(..)([^\/\.]+)(\.(png))?(\/(png))?(?:\/(\d+w))?(?:\/(\d+h))?$ /ResizedImage/$8$9/$1/$2/$1$2$3/$1$2$3.png;
	rewrite ^\/image\/(..)(..)([^\/\.]+)(\.(gif))?(\/(gif))?(?:\/(\d+w))?(?:\/(\d+h))?$ /ResizedImage/$8$9/$1/$2/$1$2$3/$1$2$3.gif;
}