orderless 包可以与 vertico 一起使用。vertico 负责提供交互式的补全 UI，orderless 是管 completion style。 更丰富的样式，可以参考如下定义 （from doomemacs）：
(defun +vertico-orderless-dispatch (pattern _index _total)
(cond
;; Ensure $ works with Consult commands, which add disambiguation suffixes
((string-suffix-p "$" pattern)
`(orderless-regexp . ,(concat (substring pattern 0 -1) "[\x200000-\x300000]*$")))
;; Ignore single !
((string= "!" pattern) `(orderless-literal . ""))
;; Without literal
((string-prefix-p "!" pattern) `(orderless-without-literal . ,(substring pattern 1)))
;; Character folding
((string-prefix-p "%" pattern) `(char-fold-to-regexp . ,(substring pattern 1)))
((string-suffix-p "%" pattern) `(char-fold-to-regexp . ,(substring pattern 0 -1)))
;; Initialism matching
((string-prefix-p "`" pattern) `(orderless-initialism . ,(substring pattern 1)))
((string-suffix-p "`" pattern) `(orderless-initialism . ,(substring pattern 0 -1)))
;; Literal matching
((string-prefix-p "=" pattern) `(orderless-literal . ,(substring pattern 1)))
((string-suffix-p "=" pattern) `(orderless-literal . ,(substring pattern 0 -1)))
;; Flex matching
((string-prefix-p "~" pattern) `(orderless-flex . ,(substring pattern 1)))
((string-suffix-p "~" pattern) `(orderless-flex . ,(substring pattern 0 -1)))))
然后调用：
(setq orderless-style-dispatchers '(+vertico-orderless-dispatch))
还可以对其输入在补全中高亮显示：
(set-face-attribute 'completions-first-difference nil :inherit nil)