Emacs notes

This page contains notes for using Emacs.

Commands

fill-paragraph

(Shortcut: M-q) Depending on mode, reduces column width of text to that set by set-fill-column

query-replace

Search and replace, prompting (i.e. querying) for each replacement.

query-replace-regexp

Search and replace with regular expressions, prompting (i.e. querying) for each replacement.

quoted-insert TAB

(Shortcut: C-q TAB) Inserts a TAB character.

revert-buffer

Reload file to buffer, discarding changes.

set-fill-column

Prompts setting the paragraph width produced by commands such as fill-paragraph

toggle-truncate-lines

Make long lines wrap around to stay within view in a window.

text-scale-adjust

(Shortcut: C-x C-+, C-x C-=, or C-x C--) Increase or decrease size of text, pressing +, - or 0 to adjust. Note: only effective on GUI.

Modes

hs-minor-mode

Reference manual.

Shortcuts:

• Hide current block (M-x hs-hide-block)
  • C-c @ C-h
  • C-c @ C-d (note: required for vg2's LXQt desktop environment )
• Show current block (M-x hs-show-block)
  • C-c @ C-s
• Hide all
  • C-c @ C-M-h
  • C-c @ C-t
• Show all
  • C-c @ C-M-s
  • C-c @ C-a

visual-line-mode

Wraps lines at word boundaries.

M-x visual-line-mode

Useful techniques

Reformat footnote numbers with query-replace-regexp in Mediawiki wikicode. (e.g. link to a corresponding #c4n{n} anchor in a subpage at [[../Notes]].)

 M-x query-replace-regexp
 \([0-9]+\) 
 <sup>[[../Notes#c4n\1|\1]]</sup>
 ENTER

 M-x query-replace-regexp
 \([0-9]+\)$
 <sup>[[../Notes#c4n\1|\1]]</sup>
 ENTER

See also

• Emacs

External links

• bk4, reboil.com
• gnu.org manual