Difference between revisions of "Registers"

From WikEmacs
Jump to navigation Jump to search
(Cheapest Car Insurance)
m (Added helm-register tip to visualize registers)
 
(8 intermediate revisions by 5 users not shown)
Line 1: Line 1:
−
Insurance
+
Emacs registers are compartments where you can save text, rectangles, positions, and other things for later use. Once you save text or a rectangle in a register, you can copy it into the buffer once, or many times; once you save a position in a register, you can jump back to that position once, or many times.
 +
 
 +
== Naming convention ==
 +
There are 62 registers, each with a single character for a name:
 +
 
 +
* from a to z
 +
* from A to Z, different from a to z
 +
* from 0 to 9
 +
 
 +
== Functions ==
 +
A register can store a position, a piece of text, a rectangle, a number, a window configuration, or a file name, but only one thing at any given time. Whatever you store in a register remains there until you store something else in that register.
 +
 
 +
== How to use ==
 +
{| class="wikitable"
 +
|-
 +
! Type
 +
! How to save
 +
! How to use
 +
! Other useful command
 +
|-
 +
|Position
 +
|C-x r <SPC> '''r'''
 +
|''jump:'' C-x r j '''r'''
 +
|
 +
|-
 +
|Text
 +
|C-x r s '''r'''
 +
|''insert:'' C-x r i '''r'''
 +
| m-x append-toregister <RET> '''r'''; m-x prepend-to-register <RET> '''r'''
 +
|-
 +
|Rectangle
 +
|C-x r r '''r'''
 +
|''insert:'' C-x r i '''r'''
 +
|
 +
|-
 +
|Window Config
 +
|C-x r w '''r'''
 +
|''restore:'' C-x r j '''r'''
 +
|''save all frame's window:'' C-x r f '''r'''
 +
|-
 +
|Number
 +
|C-u number C-x r n '''r'''
 +
|''insert:'' C-x r i '''r'''
 +
|''increment:'' C-x r + '''r'''
 +
|-
 +
| File
 +
| (set-register ?z '(fine . name))
 +
| ''jump:'' C-x r j '''r'''
 +
|
 +
|}
 +
* To see what register r contains, use M-x view-register
 +
* To visualize what register r contains with helm you can M-x [https://tuhdo.github.io/helm-intro.html#sec-19 helm-register]
 +
 
 +
== Bookmark ==
 +
[[Bookmarks]] can be thought as register with a long name and surviving between Emacs session.
 +
 
 +
[[Category:Text Editing]]

Latest revision as of 19:19, 1 November 2014

Emacs registers are compartments where you can save text, rectangles, positions, and other things for later use. Once you save text or a rectangle in a register, you can copy it into the buffer once, or many times; once you save a position in a register, you can jump back to that position once, or many times.

Naming convention

There are 62 registers, each with a single character for a name:

  • from a to z
  • from A to Z, different from a to z
  • from 0 to 9

Functions

A register can store a position, a piece of text, a rectangle, a number, a window configuration, or a file name, but only one thing at any given time. Whatever you store in a register remains there until you store something else in that register.

How to use

Type How to save How to use Other useful command
Position C-x r <SPC> r jump: C-x r j r
Text C-x r s r insert: C-x r i r m-x append-toregister <RET> r; m-x prepend-to-register <RET> r
Rectangle C-x r r r insert: C-x r i r
Window Config C-x r w r restore: C-x r j r save all frame's window: C-x r f r
Number C-u number C-x r n r insert: C-x r i r increment: C-x r + r
File (set-register ?z '(fine . name)) jump: C-x r j r
  • To see what register r contains, use M-x view-register
  • To visualize what register r contains with helm you can M-x helm-register

Bookmark

Bookmarks can be thought as register with a long name and surviving between Emacs session.

Retrieved from "https://wikemacs.org/index.php?title=Registers&oldid=46840"