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[Emacs-diffs] /srv/bzr/emacs/trunk r104727: Extend emacs register to acc
From: |
Leo Liu |
Subject: |
[Emacs-diffs] /srv/bzr/emacs/trunk r104727: Extend emacs register to accept value from registerv-make |
Date: |
Sun, 26 Jun 2011 14:37:04 +0800 |
User-agent: |
Bazaar (2.3.1) |
------------------------------------------------------------
revno: 104727
committer: Leo Liu <address@hidden>
branch nick: trunk
timestamp: Sun 2011-06-26 14:37:04 +0800
message:
Extend emacs register to accept value from registerv-make
A value object returned by `registerv-make' has slots to control
jump-to-register, describe-register-1 and insert-register.
modified:
lisp/ChangeLog
lisp/register.el
=== modified file 'lisp/ChangeLog'
--- a/lisp/ChangeLog 2011-06-26 04:05:39 +0000
+++ b/lisp/ChangeLog 2011-06-26 06:37:04 +0000
@@ -1,3 +1,11 @@
+2011-06-26 Leo Liu <address@hidden>
+
+ * register.el (registerv): New struct.
+ (registerv-make): New function.
+ (jump-to-register, describe-register-1, insert-register): Support
+ the jump-func, print-func and insert-func slot of a registerv
+ struct. (Bug#8415)
+
2011-06-26 Chong Yidong <address@hidden>
* vc/vc.el (vc-revert-show-diff): New defcustom.
=== modified file 'lisp/register.el'
--- a/lisp/register.el 2011-04-19 13:44:55 +0000
+++ b/lisp/register.el 2011-06-26 06:37:04 +0000
@@ -28,6 +28,8 @@
;; pieces of buffer state to named variables. The entry points are
;; documented in the Emacs user's manual.
+(eval-when-compile (require 'cl))
+
(declare-function semantic-insert-foreign-tag "semantic/tag" (foreign-tag))
(declare-function semantic-tag-buffer "semantic/tag" (tag))
(declare-function semantic-tag-start "semantic/tag" (tag))
@@ -50,9 +52,36 @@
;;; Code:
+(defstruct
+ (registerv (:constructor nil)
+ (:constructor registerv--make (&optional data print-func
+ jump-func insert-func))
+ (:copier nil)
+ (:type vector)
+ :named)
+ (data nil :read-only t)
+ (print-func nil :read-only t)
+ (jump-func nil :read-only t)
+ (insert-func nil :read-only t))
+
+(defun* registerv-make (data &key print-func jump-func insert-func)
+ "Create a register value object.
+
+DATA can be any value.
+PRINT-FUNC if provided controls how `list-registers' and
+`view-register' print the register. It should be a function
+recieving one argument DATA and print text that completes
+this sentence:
+ Register X contains [TEXT PRINTED BY PRINT-FUNC]
+JUMP-FUNC if provided, controls how `jump-to-register' jumps to the register.
+INSERT-FUNC if provided, controls how `insert-register' insert the register.
+They both receive DATA as argument."
+ (registerv--make data print-func jump-func insert-func))
+
(defvar register-alist nil
"Alist of elements (NAME . CONTENTS), one for each Emacs register.
-NAME is a character (a number). CONTENTS is a string, number, marker or list.
+NAME is a character (a number). CONTENTS is a string, number, marker, list
+or a struct returned by `registerv-make'.
A list of strings represents a rectangle.
A list of the form (file . FILE-NAME) represents the file named FILE-NAME.
A list of the form (file-query FILE-NAME POSITION) represents
@@ -120,6 +149,11 @@
(interactive "cJump to register: \nP")
(let ((val (get-register register)))
(cond
+ ((registerv-p val)
+ (assert (registerv-jump-func val) nil
+ "Don't know how to jump to register %s"
+ (single-key-description register))
+ (funcall (registerv-jump-func val) (registerv-data val)))
((and (consp val) (frame-configuration-p (car val)))
(set-frame-configuration (car val) (not delete))
(goto-char (cadr val)))
@@ -209,6 +243,11 @@
(princ " contains ")
(let ((val (get-register register)))
(cond
+ ((registerv-p val)
+ (if (registerv-print-func val)
+ (funcall (registerv-print-func val) (registerv-data val))
+ (princ "[UNPRINTABLE CONTENTS].")))
+
((numberp val)
(princ val))
@@ -285,8 +324,11 @@
(push-mark)
(let ((val (get-register register)))
(cond
- ((consp val)
- (insert-rectangle val))
+ ((registerv-p val)
+ (assert (registerv-insert-func val) nil
+ "Don't know how to insert register %s"
+ (single-key-description register))
+ (funcall (registerv-insert-func val) (registerv-data val)))
((stringp val)
(insert-for-yank val))
((numberp val)
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