679 lines
25 KiB
EmacsLisp
679 lines
25 KiB
EmacsLisp
;;; db-utils.el --- Utility Functions for Daniel's Emacs Configuration -*- lexical-binding: t -*-
|
||
|
||
;;; Commentary:
|
||
;;
|
||
;; Some functions used in my ~/.emacs.d/init.el. Most of them are copied from
|
||
;; various sources around the internet.
|
||
;;
|
||
|
||
;;; Code:
|
||
|
||
(require 'subr-x)
|
||
(require 'cl-lib)
|
||
(require 'dash)
|
||
(require 'db-customize)
|
||
(require 'bookmark)
|
||
(require 'term)
|
||
(require 'nsm)
|
||
(require 'compile)
|
||
(require 'calc)
|
||
(require 'calc-forms)
|
||
(require 'ert)
|
||
(require 's)
|
||
(require 'shr)
|
||
|
||
(autoload 'async-start "async")
|
||
(autoload 'lispy-mode "lispy")
|
||
(autoload 'ldap-search "ldap")
|
||
|
||
(declare-function w32-shell-execute "w32fns.c")
|
||
|
||
|
||
;;; Application Shortcuts
|
||
|
||
(defun db/run-or-hide-ansi-term ()
|
||
"Find `*ansi-term*' or run `ansi-term' with `explicit-shell-file-name'.
|
||
If already in `*ansi-term*' buffer, bury it."
|
||
(interactive)
|
||
(if (string= "term-mode" major-mode)
|
||
(bury-buffer)
|
||
(if (get-buffer "*ansi-term*")
|
||
(switch-to-buffer "*ansi-term*")
|
||
(ansi-term explicit-shell-file-name))))
|
||
|
||
(defun db/gnus ()
|
||
"Switch to the `*Group*' buffer, starting `gnus' if not existent."
|
||
(interactive)
|
||
(require 'gnus)
|
||
(if (get-buffer "*Group*")
|
||
(switch-to-buffer "*Group*")
|
||
(gnus)))
|
||
|
||
(defun db/org-agenda ()
|
||
"Show the main `org-agenda'."
|
||
(interactive)
|
||
(org-agenda nil "A"))
|
||
|
||
(defun db/scratch ()
|
||
"Switch to `*scratch*'."
|
||
(interactive)
|
||
(switch-to-buffer "*scratch*"))
|
||
|
||
(defun db/find-user-init-file ()
|
||
"Edit `user-init-file'."
|
||
(interactive)
|
||
(find-file user-init-file))
|
||
|
||
(defun db/run-or-hide-shell (arg)
|
||
"Opens a shell buffer in new window if not already in one.
|
||
Otherwise, closes the current shell window. With ARG, switch
|
||
to `default-directory' of the current buffer first."
|
||
;; idea to split the current window is from
|
||
;; http://howardism.org/Technical/Emacs/eshell-fun.html
|
||
(interactive "P")
|
||
(cl-flet ((change-to-shell ()
|
||
(if-let ((shell-window (db/find-window-by-buffer-mode 'shell-mode)))
|
||
(select-window shell-window)
|
||
;; open shell in buffer with height of ⅓ of current window
|
||
(let ((height (/ (window-total-height) 3)))
|
||
(shell)
|
||
(enlarge-window (- height (window-total-height)))))))
|
||
(if (not arg)
|
||
;; toggle shell window
|
||
(if (not (derived-mode-p 'shell-mode))
|
||
(change-to-shell)
|
||
(bury-buffer)
|
||
(delete-window))
|
||
|
||
;; unconditionally go to shell, and also change to cwd
|
||
(let ((current-dir (expand-file-name default-directory)))
|
||
(change-to-shell)
|
||
(end-of-line)
|
||
(comint-kill-input)
|
||
(insert (format "cd '%s'" current-dir))
|
||
(comint-send-input)))))
|
||
|
||
|
||
;;; General Utilities
|
||
|
||
(defun db/get-url-from-link ()
|
||
"Copy url of link under point into clipboard."
|
||
(interactive)
|
||
(let ((url (plist-get (text-properties-at (point)) 'help-echo)))
|
||
(if url
|
||
(kill-new url)
|
||
(error "No link found"))))
|
||
|
||
(defun db/test-emacs ()
|
||
;; from oremacs
|
||
"Test whether emacs' configuration is not throwing any errors."
|
||
(interactive)
|
||
(require 'async)
|
||
(async-start
|
||
(lambda () (shell-command-to-string
|
||
"emacs --batch --eval \"
|
||
(condition-case e
|
||
(progn
|
||
(load \\\"~/.emacs.d/init.el\\\")
|
||
(message \\\"-OK-\\\"))
|
||
(error
|
||
(message \\\"ERROR!\\\")
|
||
(signal (car e) (cdr e))))\""))
|
||
`(lambda (output)
|
||
(if (string-match "-OK-" output)
|
||
(when ,(called-interactively-p 'any)
|
||
(message "All is well"))
|
||
(switch-to-buffer-other-window "*startup error*")
|
||
(delete-region (point-min) (point-max))
|
||
(insert output)
|
||
(search-backward "ERROR!")))))
|
||
|
||
(defun db/isearch-forward-symbol-with-prefix (p)
|
||
;; http://endlessparentheses.com/quickly-search-for-occurrences-of-the-symbol-at-point.html
|
||
"Like `isearch-forward', unless prefix argument is provided.
|
||
With a prefix argument P, isearch for the symbol at point."
|
||
(interactive "P")
|
||
(let ((current-prefix-arg nil))
|
||
(call-interactively
|
||
(if p
|
||
#'isearch-forward-symbol-at-point
|
||
#'isearch-forward))))
|
||
|
||
(defun endless/fill-or-unfill ()
|
||
"Like `fill-paragraph', but unfill if used twice."
|
||
;; http://endlessparentheses.com/fill-and-unfill-paragraphs-with-a-single-key.html
|
||
(interactive)
|
||
(let ((fill-column
|
||
(if (eq last-command 'endless/fill-or-unfill)
|
||
(progn (setq this-command nil)
|
||
(point-max))
|
||
fill-column)))
|
||
(call-interactively #'fill-paragraph)))
|
||
|
||
(defun db/delete-trailing-whitespace-maybe ()
|
||
"Call `delete-trailing-whitespace', but not in `message-mode'."
|
||
(unless (derived-mode-p 'message-mode)
|
||
(delete-trailing-whitespace)))
|
||
|
||
(defun db/find-window-by-buffer-mode (mode)
|
||
"Return first window in current frame displaying a buffer with
|
||
major mode MODE."
|
||
(cl-find-if (lambda (window)
|
||
(with-current-buffer (window-buffer window)
|
||
(eq major-mode mode)))
|
||
(window-list-1)))
|
||
|
||
(defun db/hex-to-ascii (hex-string)
|
||
"Convert HEX-STRING to its ASCII equivalent.
|
||
Allowed characters in hex-string are hexadecimal digits and
|
||
whitespaces. If region is active, replace region by the
|
||
corresponding ASCII string, otherwise query for input and display
|
||
the result in the minibuffer."
|
||
;; https://stackoverflow.com/questions/12003231/how-do-i-convert-a-string-of-hex-into-ascii-using-elisp
|
||
(interactive (list (if (use-region-p)
|
||
(buffer-substring-no-properties (region-beginning) (region-end))
|
||
(read-from-minibuffer "String (hex): "))))
|
||
(cl-assert (not (string-match-p "[^A-Fa-e0-9 \t\n]" hex-string))
|
||
"String contains invalid characters.")
|
||
(let ((result (->> hex-string
|
||
(replace-regexp-in-string "[ \t\n]" "")
|
||
(string-to-list)
|
||
(-partition 2)
|
||
(--map (string-to-number (concat it) 16))
|
||
concat)))
|
||
(if (use-region-p)
|
||
(progn
|
||
(delete-region (region-beginning) (region-end))
|
||
(dolist (char (string-to-list result))
|
||
(insert-byte char 1)))
|
||
(message result))))
|
||
|
||
(defun db/text-to-hex (text-string)
|
||
"Convert TEXT-STRING to its hexadecimal representation.
|
||
This function will return hexadecimal numbers with more than two
|
||
digits if the input string contains wide characters. The result
|
||
might depend on the coding system of the current buffer."
|
||
(interactive (list (if (use-region-p)
|
||
(buffer-substring-no-properties (region-beginning) (region-end))
|
||
(read-from-minibuffer "String (ascii): "))))
|
||
(let ((result (->> text-string
|
||
(--map (format "%02X " it))
|
||
(apply #'concat)
|
||
(string-trim-right))))
|
||
(if (use-region-p)
|
||
(progn
|
||
(delete-region (region-beginning) (region-end))
|
||
(insert result))
|
||
(message result))))
|
||
|
||
(defun db/ntp-to-time (high low &optional format-string)
|
||
"Format NTP time given by HIGH and LOW to time as given by FORMAT-STRING.
|
||
HIGH and LOW must both be 8 digit hex strings. If not given,
|
||
FORMAT-STRING defaults to some ISO 8601-like format."
|
||
(interactive (cl-flet ((read-hex (prompt)
|
||
(let ((input-proper (->> prompt
|
||
(read-string)
|
||
(replace-regexp-in-string "[\n\t ]" ""))))
|
||
(if (not (string-match-p "[0-9a-fA-F]\\{8\\}" input-proper))
|
||
(user-error "Input invalid, must be an 8 digit hex string.")
|
||
(string-to-number input-proper 16)))))
|
||
(list (read-hex "High (hex): ")
|
||
(read-hex "Low (hex): "))))
|
||
(let* ((calc-internal-prec 30)
|
||
(unix-time (calcFunc-unixtime (calc-eval (format "%s - 2208988800 + (%s/4294967296)" high low)
|
||
'raw)
|
||
;; we explicitly call `calcFunc-unixtime'
|
||
;; here to set the time zone to UTC
|
||
0))
|
||
(time-string (format (or format-string
|
||
"%04d-%02d-%02dT%02d:%02d:%012.9fZ")
|
||
(calcFunc-year unix-time)
|
||
(calcFunc-month unix-time)
|
||
(calcFunc-day unix-time)
|
||
(calcFunc-hour unix-time)
|
||
(calcFunc-minute unix-time)
|
||
;; `seconds' will be a floating point number, and we need to format
|
||
;; it with a precision that is high enough; apparently, we also need
|
||
;; to truncate the number of seconds to nine digits, at least that
|
||
;; is what has been done in the test example we use in the
|
||
;; corresponding regression test …
|
||
(string-to-number
|
||
(calc-eval "trunc(second($), 9)" 'num unix-time)))))
|
||
(if (called-interactively-p 'interactive)
|
||
(message time-string)
|
||
time-string)))
|
||
|
||
(defun conditionally-enable-lispy ()
|
||
"Enable lispy-mode when in `eval-expression’ or in
|
||
`pp-eval-expression’. lispy must have been loaded for this
|
||
first, i.e., this function will not automatically load
|
||
lispy."
|
||
(when (and (featurep 'lispy)
|
||
(or (eq this-command 'eval-expression)
|
||
(eq this-command 'pp-eval-expression)))
|
||
(lispy-mode 1)))
|
||
|
||
(defun turn-on-lispy-when-available ()
|
||
"Activate `lispy’ in current buffer when possible.
|
||
Will print a warning in case of failure."
|
||
(interactive)
|
||
(with-demoted-errors "Cannot activate lispy: %s"
|
||
(require 'lispy)
|
||
(lispy-mode)))
|
||
|
||
(defun turn-on-flycheck-when-file ()
|
||
"Turn on `flycheck-mode' when buffer is associated with a file."
|
||
(when buffer-file-name
|
||
(flycheck-mode +1)))
|
||
|
||
(defun db/sort-nsm-permanent-settings ()
|
||
"Sort values in `nsm-permanent-host-settings’."
|
||
(setq nsm-permanent-host-settings
|
||
(cl-sort nsm-permanent-host-settings
|
||
#'string<
|
||
:key #'cl-second)))
|
||
|
||
(defun endless/colorize-compilation ()
|
||
"Colorize from `compilation-filter-start' to `point'."
|
||
;; http://endlessparentheses.com/ansi-colors-in-the-compilation-buffer-output.html
|
||
(let ((inhibit-read-only t))
|
||
(ansi-color-apply-on-region compilation-filter-start (point))))
|
||
|
||
(defun db/turn-off-local-electric-pair-mode ()
|
||
"Locally turn off electric pair mode."
|
||
(interactive)
|
||
(electric-pair-local-mode -1))
|
||
|
||
(defun db/pretty-print-xml ()
|
||
"Stupid function to pretty print XML content in current buffer."
|
||
;; We assume that < and > only occur as XML tag delimiters, not in strings;
|
||
;; this function is not Unicode-safe
|
||
(interactive)
|
||
|
||
(unless (eq major-mode 'nxml-mode)
|
||
(require 'nxml-mode)
|
||
(nxml-mode))
|
||
|
||
(save-mark-and-excursion
|
||
|
||
;; First make it all into one line
|
||
(goto-char (point-min))
|
||
(while (re-search-forward "\n[\t ]*" nil 'no-error)
|
||
;; In case there was a space, we have to keep at least one as a separator
|
||
(if (save-match-data (looking-back "[\t ]" 1))
|
||
(replace-match " ")
|
||
(replace-match "")))
|
||
|
||
;; Next break between tags
|
||
(goto-char (point-min))
|
||
(while (re-search-forward ">[\t ]*<" nil 'no-error)
|
||
(replace-match ">\n<"))
|
||
|
||
;; Move opening and closing tags to same line in case there’s nothing in
|
||
;; between
|
||
(goto-char (point-min))
|
||
(while (re-search-forward "<\\([^>]*\\)>\n</\\1>" nil 'no-error)
|
||
(replace-match "<\\1></\\1>"))
|
||
|
||
;; Indent
|
||
(indent-region (point-min) (point-max))))
|
||
|
||
(defun db/lookup-smime-key (mail)
|
||
"Look up `MAIL' on ldap-server of the DFN.
|
||
|
||
If found, imports the certificate via gpgsm."
|
||
;; inspired by https://www.emacswiki.org/emacs/ExtendSMIME
|
||
(interactive "sMail: ")
|
||
(require 'ldap)
|
||
(when (get-buffer " *ldap-value*")
|
||
(kill-buffer " *ldap-value*"))
|
||
(ldap-search (format "(mail=%s)" mail))
|
||
(let ((bufval (get-buffer " *ldap-value*")))
|
||
(when bufval
|
||
(with-current-buffer bufval
|
||
(save-restriction
|
||
(widen) ; just to be sure
|
||
(let ((result (call-process-region (point-min) (point-max)
|
||
"gpgsm"
|
||
nil nil nil
|
||
"--import")))
|
||
(if (zerop result)
|
||
(message "Successfully imported certificate for <%s>" mail)
|
||
(error "Could not import certificate for <%s>" mail))))))))
|
||
|
||
;; https://emacs.stackexchange.com/questions/3089/how-can-i-create-a-dired-buffer-listing-all-open-files
|
||
;; https://emacs.stackexchange.com/questions/2567/programmatically-insert-files-into-dired-buffer
|
||
(defun db/dired-from-shell-command (command &optional directory)
|
||
"Run COMMAND in DIRECTORY and display resulting list of files via `dired’.
|
||
|
||
COMMAND must be a shell command that produces a list of files as
|
||
output, separated by \\n, when called with
|
||
`shell-command-to-string’. DIRECTORY defaults to
|
||
`default-directory’."
|
||
(interactive "sCommand: ")
|
||
(when (and directory (not (directory-name-p directory)))
|
||
(user-error "Value for DIRECTORY is not a directory name: %s"
|
||
directory))
|
||
(let* ((default-directory (or directory default-directory))
|
||
(list-of-files (cl-remove-if-not
|
||
(lambda (entry)
|
||
(and (not (string-empty-p entry))
|
||
(or (file-exists-p entry)
|
||
(file-symlink-p entry))))
|
||
(split-string (shell-command-to-string command)
|
||
"\n"))))
|
||
(if (null list-of-files)
|
||
(message "No files return by command “%s”" command)
|
||
(dired (cons "Command output" list-of-files)))))
|
||
|
||
(defun db/dired-from-git-annex (matching-options)
|
||
"Display files found by git annex with MATCHING-OPTIONS.
|
||
This runs “git annex find” with MATCHING-OPTIONS (a string) in
|
||
`default-directory' and displays the resulting set of files using
|
||
`dired'."
|
||
(interactive (list (read-string (format "Matching Options (in %s): "
|
||
default-directory))))
|
||
(db/dired-from-shell-command (format "git annex find . %s" matching-options)
|
||
default-directory))
|
||
|
||
(defun db/system-open (path)
|
||
"Open PATH with default program as defined by the underlying system."
|
||
(cond
|
||
((eq system-type 'windows-nt)
|
||
(w32-shell-execute "open" path))
|
||
((eq system-type 'cygwin)
|
||
(start-process "" nil "cygstart" path))
|
||
(t
|
||
(start-process "" nil "xdg-open" path))))
|
||
|
||
(defun keyboard-quit-context+ ()
|
||
"Quit current context.
|
||
|
||
This function is a combination of `keyboard-quit' and
|
||
`keyboard-escape-quit' with some parts omitted and some custom
|
||
behavior added. When the minibuffer is active, quit it
|
||
regardless of the currently selected window."
|
||
;; https://with-emacs.com/posts/tips/quit-current-context/
|
||
(interactive)
|
||
(cond ((region-active-p)
|
||
;; Avoid adding the region to the window selection.
|
||
(setq saved-region-selection nil)
|
||
(let (select-active-regions)
|
||
(deactivate-mark)))
|
||
((eq last-command 'mode-exited) nil)
|
||
(current-prefix-arg
|
||
nil)
|
||
(defining-kbd-macro
|
||
(message
|
||
(substitute-command-keys
|
||
"Quit is ignored during macro defintion, use \\[kmacro-end-macro] if you want to stop macro definition"))
|
||
(cancel-kbd-macro-events))
|
||
((active-minibuffer-window)
|
||
(when (get-buffer-window "*Completions*")
|
||
;; hide completions first so point stays in active window when
|
||
;; outside the minibuffer
|
||
(minibuffer-hide-completions))
|
||
(abort-recursive-edit))
|
||
(t
|
||
(when completion-in-region-mode
|
||
(completion-in-region-mode -1))
|
||
(let ((debug-on-quit nil))
|
||
(signal 'quit nil)))))
|
||
|
||
(defun db/convert-lf-to-crlf-in-buffer (&rest _stuff)
|
||
"Convert all LF to CRLF in current buffer.
|
||
Does not replace CRLF with CRCRLF, and so on."
|
||
(save-mark-and-excursion
|
||
(save-restriction
|
||
(widen)
|
||
(goto-char (point-min))
|
||
(while (re-search-forward "\n" nil 'noerror)
|
||
(unless (looking-back "\r\n" 2)
|
||
(replace-match "\r\n"))))))
|
||
|
||
(defun db/convert-crlf-to-lf-in-buffer (&rest _stuff)
|
||
"Convert all CRLF to LF in current buffer."
|
||
(save-mark-and-excursion
|
||
(save-restriction
|
||
(widen)
|
||
(goto-char (point-min))
|
||
(while (re-search-forward "\r\n" nil 'noerror)
|
||
(replace-match "\n")))))
|
||
|
||
(defun db/sync-magit-repos-from-projectile ()
|
||
"Update repositories known to magit from projectile's."
|
||
(interactive)
|
||
(require 'projectile)
|
||
(require 'magit)
|
||
(setq magit-repository-directories
|
||
(mapcar
|
||
(lambda (dir)
|
||
(cons (substring dir 0 -1) 0))
|
||
(cl-remove-if-not
|
||
(lambda (project)
|
||
(unless (file-remote-p project)
|
||
(file-exists-p (concat project "/.git"))))
|
||
projectile-known-projects))))
|
||
|
||
(defun db/shr-render-file (file)
|
||
"Display the HTML rending of the contents of FILE."
|
||
(interactive "f")
|
||
(unless (file-readable-p file)
|
||
(user-error "Cannot read file: %s" file))
|
||
(shr-render-buffer (find-file-noselect file)))
|
||
|
||
|
||
;; Base45 Decoding
|
||
|
||
;; This is based on https://datatracker.ietf.org/doc/draft-faltstrom-base45/,
|
||
;; which in turned may be used in data encoded for QR codes.
|
||
|
||
(let ((decode-hash-table (make-hash-table))
|
||
(base45-alphabet "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ $%*+-./:"))
|
||
|
||
(-each-indexed (string-to-list base45-alphabet)
|
||
(-lambda (index char)
|
||
(puthash char index decode-hash-table)
|
||
;; Add an encode-hash-table here in case base45-encode-string will ever be
|
||
;; written, like so: (puthash index char encode-hash-table)
|
||
))
|
||
|
||
(defun db/base45-decode-string (str)
|
||
"Decode base45 string STR and return the result as a string."
|
||
|
||
(when (= 1 (% (length str) 3))
|
||
(user-error "Input string has invalid length for base45 decoding; must be 0 or 2 modulo 3"))
|
||
|
||
(let* ((list-of-numbers (->> str
|
||
|
||
s-upcase ; also allow lower-case input characters
|
||
|
||
;; convert all characters to their code values
|
||
(-map (lambda (char)
|
||
(or (gethash char decode-hash-table)
|
||
(user-error "Invalid character in string for base45 decoding: %c" char))))
|
||
|
||
(-partition-all 3)
|
||
|
||
;; Interpret tuples as base45 numbers and
|
||
;; compute their decimal values
|
||
(-map (lambda (block)
|
||
(+ (* 45 45 (or (nth 2 block) 0))
|
||
(* 45 (nth 1 block))
|
||
(nth 0 block))))))
|
||
|
||
(list-of-bytes (nconc (-mapcat (lambda (num)
|
||
(list (/ num 256)
|
||
(% num 256)))
|
||
(-butlast list-of-numbers))
|
||
(let ((last-one (-last-item list-of-numbers)))
|
||
(if (< last-one 256)
|
||
;; When the last element represents only
|
||
;; one byte, discard the extra 0 that (/
|
||
;; last-one 256) would produce …
|
||
(list last-one)
|
||
;; … else handle the last element like all
|
||
;; the others
|
||
(list (/ last-one 256)
|
||
(% last-one 256)))))))
|
||
|
||
(apply #'string list-of-bytes))))
|
||
|
||
(ert-deftest db/base45-decode-string--basic-tests ()
|
||
"Test basic decoding examples"
|
||
;; dash is funny :)
|
||
(-each `(("QED8WEX0" "ietf!")
|
||
("X.CT3EGEC" "foobar")
|
||
("x.ct3egec" "foobar")
|
||
("/Y81EC.OE+EDR342%EX0" "Emacs is Fun!")
|
||
("1A6VF61:64R6F4F%EDM-C6H6 8DKQEWF6V4761" "19287349wjiqf72yhasd29823")
|
||
;; Bytes in the returned strings are actually numbers between 0 and
|
||
;; 255; no character conversion (or something like that) is conducted
|
||
;; here.
|
||
("6BFOXN" ,(string 120 156 187 212))
|
||
;; Test cases from https://github.com/Netnod/base45.
|
||
("%69 VD92EX0" "Hello!!")
|
||
("VV4:97Y+AHA7MY831" "%69 VD92EX0"))
|
||
(-lambda ((in out))
|
||
(should (equal out (db/base45-decode-string in))))))
|
||
|
||
(defun db/base45-decode-region (beg end)
|
||
"Base45-decode region between BEG and END.
|
||
|
||
Replaces the region by the result of the decoding."
|
||
(interactive "r")
|
||
(let ((replace-string (db/base45-decode-string (buffer-substring-no-properties beg end))))
|
||
(kill-region beg end)
|
||
;; Using `insert' and `insert-char' directly uses character conversion and
|
||
;; may scramble bytes with the eight bit set; let's try `insert-byte'
|
||
;; instead.
|
||
(dolist (char (string-to-list replace-string))
|
||
(insert-byte char 1))))
|
||
|
||
(ert-deftest db/base45-decode-region--insert-correct-bytes ()
|
||
"Test whether bytes are always inserted.
|
||
Take the start of a compressed EU Digital Covid Certificate and
|
||
insert into a temporary buffer; check that indeed the expected
|
||
number of bytes has been inserted."
|
||
(let ((encoded-string "6BFOXN"))
|
||
(with-temp-buffer
|
||
(insert encoded-string)
|
||
(db/base45-decode-region (point-min) (point-max))
|
||
(message "%s" (string-to-list (buffer-string)))
|
||
;; (120 4194204 4194235 4194260) is Emacs' internal representation of
|
||
;; x\234\273\324, where the last three bytes are raw-byte; when
|
||
;; non-raw-bytes would have been inserted, it would be (120 156 187 212).
|
||
(should (equal '(120 4194204 4194235 4194260)
|
||
(string-to-list (buffer-string)))))))
|
||
|
||
|
||
;;; Extend Input Methods
|
||
|
||
(defun db/add-symbols-to-TeX-input-method ()
|
||
"Add some new symbols to TeX input method."
|
||
(when (string= current-input-method "TeX")
|
||
(let ((quail-current-package (assoc "TeX" quail-package-alist)))
|
||
(quail-define-rules
|
||
((append . t))
|
||
("\\land" ?∧)
|
||
("\\lor" ?∨)
|
||
("\\lnot" ?¬)
|
||
("\\implies" ?⇒)
|
||
("\\powerset" ?𝔓)
|
||
("\\mathbbK" ?𝕂)
|
||
("\\mathbbR" ?ℝ)
|
||
("\\mathbbN" ?ℕ)
|
||
("\\mathbbZ" ?ℤ)
|
||
("\\mathbbP" ?ℙ)
|
||
("\\mathcalA" ?𝒜)
|
||
("\\mathcalB" ?ℬ)
|
||
("\\mathcalC" ?𝒞)
|
||
("\\mathcalD" ?𝒟)
|
||
("\\mathcalE" ?ℰ)
|
||
("\\mathcalH" ?ℋ)
|
||
("\\mathcalI" ?ℐ)
|
||
("\\mathcalJ" ?𝒥)
|
||
("\\mathcalK" ?𝒦)
|
||
("\\mathcalL" ?ℒ)
|
||
("\\mathcalM" ?ℳ)
|
||
("\\mathcalR" ?ℛ)
|
||
("\\mathcalQ" ?𝒬)
|
||
("\\mathcalS" ?𝒮)
|
||
("\\mathfrakP" ?𝔓)))))
|
||
|
||
|
||
;;; Wrappers for external applications
|
||
|
||
(defun db/two-monitors-xrandr ()
|
||
"Activate second monitor using xrandr."
|
||
(call-process "xrandr" nil nil nil
|
||
"--output" "HDMI-3" "--primary" "--right-of" "LVDS-1" "--auto"))
|
||
|
||
(defun db/one-monitor-xrandr ()
|
||
"Deactivate all additional monitors."
|
||
(call-process "xrandr" nil nil nil
|
||
"--output" "HDMI-3" "--off"))
|
||
|
||
|
||
;;; Bookmarks
|
||
|
||
(defun db/bookmark-add-with-handler (name location handler)
|
||
"Add NAME as bookmark to LOCATION and use HANDLER to open it.
|
||
HANDLER is a function receiving a single argument, namely
|
||
LOCATION. If a bookmark named NAME is already present, replace
|
||
it. The bookmarks will finally be sorted by their name."
|
||
(setq bookmark-alist
|
||
(cl-delete-if #'(lambda (bmk) (equal (car bmk) name))
|
||
bookmark-alist))
|
||
(push `(,name
|
||
(filename . ,location)
|
||
(handler . ,#'(lambda (arg)
|
||
(funcall handler (cdr (assoc 'filename arg))))))
|
||
bookmark-alist)
|
||
(setq bookmark-alist (cl-sort bookmark-alist #'string-lessp :key #'car)))
|
||
|
||
(defun db/bookmark-add-external (location name)
|
||
"Add NAME as bookmark to LOCATION that is opened by the operating system.
|
||
Offers simple completing from the list of recently opened files.
|
||
In dired, offer all marked files or the currently selected file
|
||
as completing instead."
|
||
(interactive (list (completing-read "Location: " (if (derived-mode-p 'dired-mode)
|
||
(dired-get-marked-files)
|
||
recentf-list))
|
||
(read-string "Name: ")))
|
||
(db/bookmark-add-with-handler name location #'db/system-open))
|
||
|
||
(defun db/bookmark-add-url (url name)
|
||
"Add NAME as bookmark to URL that is opened by `browse-url’."
|
||
(interactive "sURL: \nsName: ")
|
||
(db/bookmark-add-with-handler name url #'browse-url))
|
||
|
||
(defun db/bookmark-add-eww (url name)
|
||
"Add NAME as bookmark to URL to be opened with `eww’."
|
||
(interactive "sURL: \nsName: ")
|
||
(db/bookmark-add-with-handler name url #'eww))
|
||
|
||
|
||
;;; Appearance
|
||
|
||
(defun db/switch-to-dark-theme ()
|
||
"Switch to dark theme.
|
||
This is `db-dark' and `solarized-dark'."
|
||
(interactive)
|
||
(load-theme 'solarized-dark)
|
||
(load-theme 'db-dark))
|
||
|
||
(defun db/switch-to-light-theme ()
|
||
"Switch to dark theme.
|
||
This is `db-light' and `solarized-light'."
|
||
(interactive)
|
||
(load-theme 'solarized-light)
|
||
(load-theme 'db-light))
|
||
|
||
|
||
;;; End
|
||
|
||
(provide 'db-utils)
|
||
|
||
;;; db-utils.el ends here
|