我想对齐
(let ((blah foo)
(asdfasdf asdasdfafd))
(message "foo"))
是
(let ((blah foo)
(asdfasdf asdasdfafd))
(message "foo"))
换句话说,let bound值应该正确对齐。
如果我选择前两行,则此功能有效:
(defun align-try-1 (beg end)
(interactive "r")
(align-regexp beg end "^\\s-*+\\(?:(let\\S-*\\|\\)\\s-*(+\\S-+\\(\\s-+\\)" 1 1 nil))
但是,我想通过挂钩对齐来使对齐当前工作 机械。即,在前两行中的任意位置,应该在不影响第三行的情况下进行正确的对齐。
答案 0 :(得分:0)
您无法在regexp中扫描性别,因为它们是递归扫描的。
我写的这个东西没有对齐(我不确定它是否可以使用对齐功能,但只是坚持sexp移动,gotos和插入使我更容易)。
(defun align-try-1 (beg end)
(interactive "r")
(goto-char beg)
(let ((endmarker (move-marker (make-marker) end)))
(catch :break
(while t
(catch :continue
(let ((actual-begin (re-search-forward "(\\([[:space:]\n]*\\)let\\([[:space:]\n]*\\)(" endmarker t))
(max-column 0))
(unless actual-begin (throw :break nil))
(when (or (in-string-p)
(eq (get-char-property actual-begin 'face) 'font-lock-comment-face))
(throw :continue nil))
(while (and (< (point) endmarker) (ignore-errors (down-list) t) (ignore-errors (forward-sexp) t))
(when (looking-at "[[:space:]\n]+") (delete-region (match-beginning 0) (match-end 0)))
(insert " ")
(when (< max-column (current-column))
(setq max-column (current-column)))
(backward-up-list)
(forward-sexp))
(goto-char actual-begin)
(while (and (< (point) endmarker) (ignore-errors (down-list) t) (ignore-errors (forward-sexp) t))
(when (looking-at "[[:space:]\n]+") (delete-region (match-beginning 0) (match-end 0)))
(dotimes (i (- max-column (current-column))) (insert " "))
(backward-up-list)
(forward-sexp))
(goto-char actual-begin)
))))))
顺便问一下,你在哪里使用它?
更新:添加了对评论或字符串的检查。
更新:已删除强制格式化内容,因为它有错误并且在原始问题中不需要。