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From: | Andreas Politz |
Subject: | Re: how to browse data with many many columns |
Date: | Mon, 22 Dec 2008 21:42:25 +0100 |
User-agent: | Mozilla-Thunderbird 2.0.0.17 (X11/20081018) |
patiobarbecue wrote:
thanks, Andreas, it works pretty well. is it possible to out the code in .emacs, or even bind it to a key? (setq header-line-format (buffer-substring 1 (line-end-position (goto-char 1)))) so I don't need to type it in everytime. After all, it is a common task for me to read tables. Sincerely Yours,Michael
Try this function, you can bind it like any other command. (defun buffer-line-as-header (&optional lnum) "Use line at linenumber LNUM as headerline, defaulting to the current line. With a non-numeric prefix arg (C-g), restore the default value of `header-line-format'. Otherwise the prefix arg determines the linenumber to use." (interactive "P") (let ((lnum (if (null lnum) (line-number-at-pos) (if (numberp lnum) lnum 0)))) (cond ((or (< lnum 0) (> lnum (line-number-at-pos (point-max)))) (error "No such linenumber : %d" lnum)) ((= 0 lnum) (setq header-line-format (default-value 'header-line-format))) (t (save-excursion (goto-line lnum) (setq header-line-format `(:eval (let ((line ,(buffer-substring (line-beginning-position) (line-end-position)))) (concat ;;acount for fringes, scroll-bar and scrolling (propertize " " 'display (list 'space :width (+ (fringe-columns 'left t) (scroll-bar-columns 'left)))) (substring line (min (1- (length line)) (window-hscroll))))))))))))
Andreas Politz wrote:patiobarbecue wrote:Dear there, I have data file with many columns. The first line has field names as usual. I am reading column 35 for example, CTRL+v will turn the page BUT focus on column 1, and I have to locate column 35 again -:) Is there a convenientway?Indeed. ,----[ C-h f set-goal-column RET ] | set-goal-column is an interactive compiled Lisp function in `simple.el'. | It is bound to C-x C-n. | (set-goal-column ARG) | | Set the current horizontal position as a goal for C-n and C-p. | Those commands will move to this position in the line moved to | rather than trying to keep the same horizontal position. | With a non-nil argument, clears out the goal column | so that C-n and C-p resume vertical motion. | The goal column is stored in the variable `goal-column'. | `----Also is it possible to keep the first line (table field names) visible while browse line 200?(setq header-line-format (buffer-substring 1 (line-end-position (goto-char 1)))) You need to eval this the buffers context (e.g. with M-:). -apThanks for your reply in advance.Michael
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