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add isdcv-mode

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10sr 11 years ago
parent
commit
d496a958a7
1 changed files with 105 additions and 3 deletions
  1. +105
    -3
      emacs.el

+ 105
- 3
emacs.el View File

@@ -24,9 +24,11 @@
;; download library from web

(defun fetch-library (url &optional byte-compile-p force-download-p)
"If library does not exist, download it from URL and locate it in
\"~/emacs.d/lisp/\". Return nil if library unfound and failed to download,
otherwise the path where the library installed."
"Download a library from URL and locate it in \"~/emacs.d/lisp/\".
Return nil if library unfound and failed to download,
otherwise the path where the library installed.
If BYTE-COMPILE-P is t byte compile the file after downloading.
If FORCE-DOWNLOAD-P it t ignore exisiting library and always download."
(let* ((dir (expand-file-name (concat user-emacs-directory "lisp/")))
(lib (file-name-sans-extension (file-name-nondirectory url)))
(lpath (concat dir lib ".el"))
@@ -2327,4 +2329,104 @@ this is test, does not rename files."

;; (my-real-function-subr-p 'my-real-function-subr-p)


(define-derived-mode isdcv-mode fundamental-mode
"iSDCV"
"Major mode for incremental sdcv buffer."
(set (make-local-variable 'font-lock-function)
'ignore))

(defvar isdcv-sdcv-command "sdcv -n '%s'"
"Command of sdcv.")

(defvar isdcv-buffer nil
"Pointer to incremental sdcv buffer.")

(defvar isdcv--timer nil
"Idle timer object for isdcv.")

(defun isdcv--timer-add ()
"Entry idle timer for isdcv."
(and (eq isdcv-buffer
(current-buffer))
;; do not duplicate timer
(not isdcv--timer)
(setq isdcv--timer (run-with-idle-timer 1
t
'isdcv--timer-function))))

(defun isdcv--timer-remove ()
"Remove idle timer for isdcv."
;; remote only when killing buffer is isdcv buffer
(and (eq isdcv-buffer
(current-buffer))
isdcv--timer
(cancel-timer isdcv--timer)))

(defvar isdcv-current-prompt-point nil
"Point of beginning of current prompt.")
(make-variable-buffer-local 'isdcv--current-prompt-point)

(defun isdcv-bol ()
"Return point to bol ignoring prompt."
(point-at-bol))

(defun isdcv--get-output-start ()
"Return point where outputs should be inserted.
This function insert newline if required."
(when isdcv-current-prompt-point
(save-excursion
(goto-char isdcv-current-prompt-point)
(forward-line 1)
(when (eq (line-number-at-pos)
(line-number-at-pos isdcv-current-prompt-point))
(end-of-line)
(newline))
(point-at-bol))))

(defun isdcv--timer-function ()
"Get entry for current isdcv input."
(let ((input (isdcv--get-input))
(outpoint (isdcv--get-output-start)))
(and input
outpoint
isdcv-sdcv-command
(save-excursion
(goto-char outpoint)
(delete-region (point)
(point-max))
(call-process-shell-command (format isdcv-sdcv-command
input)
nil
t
t)))))

(defun isdcv--get-input ()
"Get current input for isdcv buffer.
Return nil if current position is not on prompt line."
(and (eq isdcv-buffer
(current-buffer))
(eq (line-number-at-pos)
(line-number-at-pos isdcv-current-prompt-point))
(buffer-substring-no-properties (isdcv-bol)
(point-at-eol))))

(defun isdcv-open ()
"Open isdcv buffer."
(interactive)
(if isdcv-buffer
(pop-to-buffer isdcv-buffer)
(with-current-buffer (setq isdcv-buffer
(get-buffer-create "*isdcv*"))
(isdcv-mode)
(font-lock-mode t)
(setq isdcv-current-prompt-point
(point))
(forward-line -1)
(isdcv--timer-add)
(add-hook 'kill-buffer-hook
'isdcv--timer-remove)
)
(pop-to-buffer isdcv-buffer)))

;;; emacs.el ends here

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