GNU ELPA - altcaps

altcaps

Description
Apply alternating letter casing to convey sarcasm or mockery
Latest
altcaps-1.2.0.tar, 2023-Sep-22, 100 KiB
Maintainer
Altcaps Development <~protesilaos/general-issues@lists.sr.ht>
Website
https://git.sr.ht/~protesilaos/altcaps
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Manual
altcaps

To install this package from Emacs, use package-install or list-packages.

Full description

This manual, written by Protesilaos Stavrou, describes the customization options for altcaps (or altcaps.el), and provides every other piece of information pertinent to it.

The documentation furnished herein corresponds to stable version 1.2.0, released on 2023-09-22. Any reference to a newer feature which does not yet form part of the latest tagged commit, is explicitly marked as such.

Current development target is 1.3.0-dev.

1. COPYING

Copyright (C) 2022-2023 Free Software Foundation, Inc.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with the Front-Cover Texts being “A GNU Manual,” and with the Back-Cover Texts as in (a) below. A copy of the license is included in the section entitled “GNU Free Documentation License.”

(a) The FSF’s Back-Cover Text is: “You have the freedom to copy and modify this GNU manual.”

2. Overview

Transform words to alternating letter casing in order to convey sarcasm or mockery. For example, convert this:

I respect the authorities

To this:

i ReSpEcT tHe AuThOrItIeS

The altcaps package thus makes you more effective at textual communication. Plus, you appear sophisticated. tRuSt Me.

Use any of the following commands to achieve the desired results:

altcaps-word
Convert word to alternating letter casing. With optional NUM as a numeric prefix argument, operate on NUM words forward, defaulting to 1. If NUM is negative, do so backward. When NUM is a negative prefix without a number, it is interpreted -1.
altcaps-region
Convert region words between BEG and END to alternating case. BEG and END are buffer positions. When called interactively, these are automatically determined as the active region’s boundaries, else the space between mark and point.
altcaps-dwim
Convert to alternating letter casing Do-What-I-Mean style. With an active region, call altcaps-region. Else invoke altcaps-word with optional NUM, per that command’s functionality (read its documentation).

The user option altcaps-force-character-casing forces the given letter casing for specified characters. Its value is an alist of (STRING . CASE) pairs. STRING is a string with a single character, while CASE is the upcase or downcase symbol (code sample further below).

The idea is to always render certain characters in lower or upper case, in consideration of their legibility in context. For example, the default altcaps algorithm produces this:

iLlIcIt IlLiBeRaL sIlLiNeSs

Whereas if the value of this variable declares i to always be lowercase and L uppercase, then we get this:

iLLiCiT iLLiBeRaL siLLiNeSs

The code to do this:

(setq altcaps-force-character-casing
      '(("i" . downcase)
	("l" . upcase)))

3. Installation

3.1. GNU ELPA package

The package is available as altcaps. Simply do:

M-x package-refresh-contents
M-x package-install

And search for it.

GNU ELPA provides the latest stable release. Those who prefer to follow the development process in order to report bugs or suggest changes, can use the version of the package from the GNU-devel ELPA archive. Read: https://protesilaos.com/codelog/2022-05-13-emacs-elpa-devel/.

3.2. Manual installation

Assuming your Emacs files are found in ~/.emacs.d/, execute the following commands in a shell prompt:

cd ~/.emacs.d

# Create a directory for manually-installed packages
mkdir manual-packages

# Go to the new directory
cd manual-packages

# Clone this repo, naming it "altcaps"
git clone https://git.sr.ht/~protesilaos/altcaps altcaps

Finally, in your init.el (or equivalent) evaluate this:

;; Make Elisp files in that directory available to the user.
(add-to-list 'load-path "~/.emacs.d/manual-packages/altcaps")

Everything is in place to set up the package.

4. Sample configuration

(require 'altcaps)

;; Force letter casing for certain characters (for legibility).
(setq altcaps-force-character-casing
      '(("i" . downcase)
	("l" . upcase)))

;; We do not bind any keys, but you are free to do so:
(define-key global-map (kbd "C-x C-a") #'altcaps-dwim)

;; The commands we provide:
;;
;; - `altcaps-word'
;; - `altcaps-region'
;; - `altcaps-dwim'

5. Acknowledgements

aLtCaPs is meant to be a collective effort. Every bit of help matters.

Author/maintainer
Protesilaos Stavrou.
Ideas and/or user feedback
Cédric Barreteau.

Cédric is the author of an altcaps-inspired package for NeoVim, from whence I got the idea of forcing a given letter case for certain characters (I do it with the altcaps-force-character-casing user option): https://github.com/cbarrete/nvim-altcaps.

6. GNU Free Documentation License


                GNU Free Documentation License
                 Version 1.3, 3 November 2008


 Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
     
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Old versions

altcaps-1.1.0.tar.lz2022-Nov-2817.7 KiB
altcaps-1.0.0.tar.lz2022-Nov-2615.7 KiB

News

This document contains the release notes for each tagged commit on the project's main git repository: https://git.sr.ht/~protesilaos/altcaps.

The newest release is at the top. For further details, please consult the manual: https://protesilaos.com/emacs/altcaps.

1.2.0 on 2023-09-22

Breaking change to the value of altcaps-force-character-casing

This user option enforces the specified letter casing for the given character. The value is an alist. In previous versions, the car of each cell was a character type, whereas now it is a string type. Concretely, the old value was expressed like this:

;; Old value
(setq altcaps-force-character-casing
      '((?i . downcase)
	(?l . upcase)))

It becomes:

;; New value
(setq altcaps-force-character-casing
      '(("i" . downcase)
	("l" . upcase)))

At least based on my correspondence, strings are easier for users. The notation for characters causes confusion.

The public altcaps-transform function

This is the function that performs the alternating letter casing, while also respecting the user option altcaps-force-character-casing. The function is more efficient now. Use it in Lisp with a single string argument, like this:

(altcaps-transform "Your wish is my command")
;; => yOuR wIsH iS mY cOmMaNd

The above return value is consistent with the default settings. With altcaps-force-character-casing bound, we can affect the output thus:

(setq altcaps-force-character-casing
      '(("i" . downcase)
	("m" . upcase)))

(altcaps-transform "Your wish is my command")
;; => yOuR wiSh iS My CoMMaNd

Characters without casing no longer matter

Before, the algorithm was toggling the letter casing of virtually every character. This means that a string like "a.c" was wrongly treated as a sequence of three characters with letter casing, so the program was trying to do this:

a => downcase
. => upcase
c => downcase

Whereas now, the transformation skips characters without letter casing:

a => downcase
. => i Am ThE iNtElLiGeNtSiA nOw
c => upcase

The altcaps-replace is superseded by altcaps-replace-region

The altcaps-replace was not sufficiently abstract, making the code a bit repetitive. The new altcaps-replace-region is efficient in that regard.

The arity of the two functions is different: altcaps-replace was accepting one required argument plus an optional one, while altcaps-replace-region takes three arguments at all times. Please consult its doc string before adapting it to your code.

1.1.0 on 2022-11-28

New user option

Introduced the user option altcaps-force-character-casing. It forces the given letter casing for specified characters. Its value is an alist of (CHARACTER . CASE) pairs. CHARACTER is a single character (satisfies the characterp condition), while CASE is the upcase or downcase symbol (code sample further below).

The idea is to always render certain characters in lower or upper case, in consideration of their legibility in context. For example, the default altcaps algorithm produces this:

iLlIcIt IlLiBeRaL sIlLiNeSs

Whereas if the value of this variable declares i to always be lowercase and L uppercase, then we get this: … …