[Emacs] Whitespace, move header up

This commit is contained in:
Lucien Cartier-Tilet 2021-04-17 12:46:05 +02:00
parent 1bc386e012
commit a7d14158dc
Signed by: phundrak
GPG Key ID: BD7789E705CB8DCA

View File

@ -508,7 +508,7 @@ programming language, so here it is.
In this category, only the ~epub~ and ~pdf~ layers are enabled without any
special configuration, so I can read these files from Emacs directly.
#+BEGIN_SRC emacs-lisp
epub pdf
epub pdf
#+END_SRC
**** Elfeed
@ -1443,6 +1443,93 @@ in Elisp code.
Almost all of my code snippets will be prefixed by either my name or the name of
the package or layer they are part of, unless they are an explicit overwrite of
a function that already exists.
*** Elisp Utilities and Predicates
:PROPERTIES:
:CUSTOM_ID: User-Configuration-Custom-functions-macros-and-variables-Predicates-5598df46
:END:
**** ~phundrak-filter~
:PROPERTIES:
:CUSTOM_ID: User-Configuration-Custom-functions-macros-and-variables-Elisp-Utilities-and-Predicates-phundrak-filter-2d3c5a5b
:END:
#+name: elisp-phundrak-filter
#+BEGIN_SRC emacs-lisp
(defun phundrak-filter (fn list)
"Filter `LIST' according to the predicate `FN'.
All elements from `LIST' that do not satisfy the predicate `FN'
will be left out of the result, while all elements that do
satisfy it will be included in the resulting list. This function
also preserves the relative position between elements that
satisfy the predicate."
(declare (pure t) (side-effect-free t))
(when list
(let ((rest (phundrak-filter fn
(cdr list))))
(if (funcall fn
(car list))
(cons (car list) rest)
rest))))
#+END_SRC
**** ~phundrak-all?~
:PROPERTIES:
:CUSTOM_ID: User-Configuration-Custom-functions-macros-and-variables-phundrak-all-0655600c
:END:
This function is inspired by dashs ~-all?~ function: it will test all the
elements of the list ~seq~ against the predicate ~fn~ which should return either
~t~ or ~nil~. If all of them return something else than ~nil~, then it is a
success, otherwise it is a failure. Note that empty lists will always return
~t~.
#+BEGIN_SRC emacs-lisp
(defun phundrak-all? (fn seq)
"Check if all members of `SEQ' satisfy predicate `FN'. Note that
it will return t if `SEQ' is nil."
(declare (pure t) (side-effect-free t))
(if seq
(and (funcall fn (car seq))
(phundrak-all? fn (cdr seq)))
t))
#+END_SRC
**** ~phundrak-none?~
:PROPERTIES:
:CUSTOM_ID: User-Configuration-Custom-functions-macros-and-variables-phundrak-none-463dee26
:END:
In the same vein as ~phundrak-all?~, ~phundrak-none?~ checks if all elements of
~seq~ do not satify the predicate ~fn~. Again, if the list is empty, it will
return ~t~.
#+name: elisp-phundrak-none
#+BEGIN_SRC emacs-lisp
(defun phundrak-none? (fn seq)
"Check if all members of `SEQ' do not satisfy predicate `FN'.
Note that it will return t if `SEQ' is nil."
(declare (pure t) (side-effect-free t))
(if seq
(and (not (funcall fn (car seq)))
(phundrak-none? fn (cdr seq)))
t))
#+END_SRC
**** ~phundrak-zip~
:PROPERTIES:
:CUSTOM_ID: User-Configuration-Custom-functions-macros-and-variables-Elisp-Utilities-and-Predicates-phundrak-zip-8a49b20f
:END:
#+name: elisp-phundrak-zip
#+BEGIN_SRC emacs-lisp
(defun phundrak-zip (&rest lists)
"Zip `LISTS' together.
Be aware only the amount of elements of the smallest list will be zipped."
(declare (pure t) (side-effect-free t))
(when lists
(let ((lists (if (= 1 (length lists)) ; only one element => a list of lists was passed
(car lists)
lists)))
(when (phundrak-none? 'null lists)
(cons (mapcar 'car lists)
(phundrak-zip (mapcar 'cdr lists)))))))
#+END_SRC
*** Eshell Prompt-Related Functions
:PROPERTIES:
:CUSTOM_ID: User-Configuration-Custom-functions-macros-and-variables-Eshell-prompt-related-functions-79d07f21
@ -1745,93 +1832,6 @@ argument. Here is how it is implemented:
`(propertize ,$str 'face (list ,@$properties)))
#+END_SRC
*** Elisp Utilities and Predicates
:PROPERTIES:
:CUSTOM_ID: User-Configuration-Custom-functions-macros-and-variables-Predicates-5598df46
:END:
**** ~phundrak-filter~
:PROPERTIES:
:CUSTOM_ID: User-Configuration-Custom-functions-macros-and-variables-Elisp-Utilities-and-Predicates-phundrak-filter-2d3c5a5b
:END:
#+name: elisp-phundrak-filter
#+BEGIN_SRC emacs-lisp
(defun phundrak-filter (fn list)
"Filter `LIST' according to the predicate `FN'.
All elements from `LIST' that do not satisfy the predicate `FN'
will be left out of the result, while all elements that do
satisfy it will be included in the resulting list. This function
also preserves the relative position between elements that
satisfy the predicate."
(declare (pure t) (side-effect-free t))
(when list
(let ((rest (phundrak-filter fn
(cdr list))))
(if (funcall fn
(car list))
(cons (car list) rest)
rest))))
#+END_SRC
**** ~phundrak-all?~
:PROPERTIES:
:CUSTOM_ID: User-Configuration-Custom-functions-macros-and-variables-phundrak-all-0655600c
:END:
This function is inspired by dashs ~-all?~ function: it will test all the
elements of the list ~seq~ against the predicate ~fn~ which should return either
~t~ or ~nil~. If all of them return something else than ~nil~, then it is a
success, otherwise it is a failure. Note that empty lists will always return
~t~.
#+BEGIN_SRC emacs-lisp
(defun phundrak-all? (fn seq)
"Check if all members of `SEQ' satisfy predicate `FN'. Note that
it will return t if `SEQ' is nil."
(declare (pure t) (side-effect-free t))
(if seq
(and (funcall fn (car seq))
(phundrak-all? fn (cdr seq)))
t))
#+END_SRC
**** ~phundrak-none?~
:PROPERTIES:
:CUSTOM_ID: User-Configuration-Custom-functions-macros-and-variables-phundrak-none-463dee26
:END:
In the same vein as ~phundrak-all?~, ~phundrak-none?~ checks if all elements of
~seq~ do not satify the predicate ~fn~. Again, if the list is empty, it will
return ~t~.
#+name: elisp-phundrak-none
#+BEGIN_SRC emacs-lisp
(defun phundrak-none? (fn seq)
"Check if all members of `SEQ' do not satisfy predicate `FN'.
Note that it will return t if `SEQ' is nil."
(declare (pure t) (side-effect-free t))
(if seq
(and (not (funcall fn (car seq)))
(phundrak-none? fn (cdr seq)))
t))
#+END_SRC
**** ~phundrak-zip~
:PROPERTIES:
:CUSTOM_ID: User-Configuration-Custom-functions-macros-and-variables-Elisp-Utilities-and-Predicates-phundrak-zip-8a49b20f
:END:
#+name: elisp-phundrak-zip
#+BEGIN_SRC emacs-lisp
(defun phundrak-zip (&rest lists)
"Zip `LISTS' together.
Be aware only the amount of elements of the smallest list will be zipped."
(declare (pure t) (side-effect-free t))
(when lists
(let ((lists (if (= 1 (length lists)) ; only one element => a list of lists was passed
(car lists)
lists)))
(when (phundrak-none? 'null lists)
(cons (mapcar 'car lists)
(phundrak-zip (mapcar 'cdr lists)))))))
#+END_SRC
*** ~phundrak-blog-publish~
:PROPERTIES:
:CUSTOM_ID: User-Configuration-Custom-functions-macros-and-variables-phundrak-blog-publish-99c96b2d