Method findCaseInsensitivePath

tree.go:466–473

Makes a case-insensitive lookup of the given path and tries to find a handler. It can optionally also fix trailing slashes. It returns the case-corrected path and a bool indicating whether the lookup was successful.

(path string, fixTrailingSlash bool)

// It returns the case-corrected path and a bool indicating whether the lookup
// was successful.
func (n *node) findCaseInsensitivePath(path string, fixTrailingSlash bool) (ciPath []byte, found bool) {
	return n.findCaseInsensitivePathRec(
		path,
		make([]byte, 0, len(path)+1), // preallocate enough memory for new path
		[4]byte{},                    // empty rune buffer
		fixTrailingSlash,
	)
}

// shift bytes in array by n bytes left
func shiftNRuneBytes(rb [4]byte, n int) [4]byte {