(if (integerp b) (< a b)
t)
(if (integerp b) t
+ ;; string< also accepts symbols.
(string< a b))))))
(dolist (p list)
(funcall function (car p) (cdr p))))
Execution is delayed if `delay-mode-hooks' is non-nil.
If `delay-mode-hooks' is nil, run `after-change-major-mode-hook'
after running the mode hooks.
-Major mode functions should use this."
+Major mode functions should use this instead of `run-hooks' when running their
+FOO-mode-hook."
(if delay-mode-hooks
;; Delaying case.
(dolist (hook hooks)
;; or C-q C-x might not return immediately since ESC or C-x might be
;; bound to some prefix in function-key-map or key-translation-map.
(setq translated char)
- (let ((translation (lookup-key function-key-map (vector char))))
+ (let ((translation (lookup-key local-function-key-map (vector char))))
(if (arrayp translation)
(setq translated (aref translation 0))))
(cond ((null translated))
(put 'cl-assertion-failed 'error-conditions '(error))
(put 'cl-assertion-failed 'error-message "Assertion failed")
+(defconst user-emacs-directory
+ (if (eq system-type 'ms-dos)
+ ;; MS-DOS cannot have initial dot.
+ "~/_emacs.d/"
+ "~/.emacs.d/")
+ "Directory beneath which additional per-user Emacs-specific files are placed.
+Various programs in Emacs store information in this directory.
+Note that this should end with a directory separator.")
+
\f
;;;; Misc. useful functions.
(start-process name buffer shell-file-name shell-command-switch
(mapconcat 'identity args " ")))))
+(defun start-file-process-shell-command (name buffer &rest args)
+ "Start a program in a subprocess. Return the process object for it.
+Similar to `start-process-shell-command', but calls `start-file-process'."
+ (start-file-process
+ name buffer
+ (if (file-remote-p default-directory) "/bin/sh" shell-file-name)
+ (if (file-remote-p default-directory) "-c" shell-command-switch)
+ (mapconcat 'identity args " ")))
+
(defun call-process-shell-command (command &optional infile buffer display
&rest args)
"Execute the shell command COMMAND synchronously in separate process.
infile buffer display
shell-command-switch
(mapconcat 'identity (cons command args) " ")))))
+
+(defun process-file-shell-command (command &optional infile buffer display
+ &rest args)
+ "Process files synchronously in a separate process.
+Similar to `call-process-shell-command', but calls `process-file'."
+ (process-file
+ (if (file-remote-p default-directory) "/bin/sh" shell-file-name)
+ infile buffer display
+ (if (file-remote-p default-directory) "-c" shell-command-switch)
+ (mapconcat 'identity (cons command args) " ")))
\f
;;;; Lisp macros to do various things temporarily.
(if (window-live-p save-selected-window-window)
(select-window save-selected-window-window 'norecord))))))
+(defmacro with-selected-frame (frame &rest body)
+ "Execute the forms in BODY with FRAME as the selected frame.
+The value returned is the value of the last form in BODY.
+See also `with-temp-buffer'."
+ (declare (indent 1) (debug t))
+ (let ((old-frame (make-symbol "old-frame"))
+ (old-buffer (make-symbol "old-buffer")))
+ `(let ((,old-frame (selected-frame))
+ (,old-buffer (current-buffer)))
+ (unwind-protect
+ (progn (select-frame ,frame)
+ ,@body)
+ (if (frame-live-p ,old-frame)
+ (select-frame ,old-frame))
+ (if (buffer-live-p ,old-buffer)
+ (set-buffer ,old-buffer))))))
+
(defmacro with-temp-file (file &rest body)
"Create a new buffer, evaluate BODY there, and write the buffer to FILE.
The value returned is the value of the last form in BODY.
(or (input-pending-p)
,@body))))))
+(defmacro condition-case-no-debug (var bodyform &rest handlers)
+ "Like `condition-case' except that it does not catch anything when debugging.
+More specifically if `debug-on-error' is set, then it does not catch any signal."
+ (declare (debug condition-case) (indent 2))
+ (let ((bodysym (make-symbol "body")))
+ `(let ((,bodysym (lambda () ,bodyform)))
+ (if debug-on-error
+ (funcall ,bodysym)
+ (condition-case ,var
+ (funcall ,bodysym)
+ ,@handlers)))))
+
+(defmacro with-demoted-errors (&rest body)
+ "Run BODY and demote any errors to simple messages.
+If `debug-on-error' is non-nil, run BODY without catching its errors.
+This is to be used around code which is not expected to signal an error
+but which should be robust in the unexpected case that an error is signalled."
+ (declare (debug t) (indent 0))
+ (let ((err (make-symbol "err")))
+ `(condition-case-no-debug ,err
+ (progn ,@body)
+ (error (message "Error: %s" ,err) nil))))
+
(defmacro combine-after-change-calls (&rest body)
"Execute BODY, but don't call the after-change functions till the end.
If BODY makes changes in the buffer, they are recorded
\f
;;;; Constructing completion tables.
+(defun complete-with-action (action table string pred)
+ "Perform completion ACTION.
+STRING is the string to complete.
+TABLE is the completion table, which should not be a function.
+PRED is a completion predicate.
+ACTION can be one of nil, t or `lambda'."
+ ;; (assert (not (functionp table)))
+ (funcall
+ (cond
+ ((null action) 'try-completion)
+ ((eq action t) 'all-completions)
+ (t 'test-completion))
+ string table pred))
+
(defmacro dynamic-completion-table (fun)
"Use function FUN as a dynamic completion table.
FUN is called with one argument, the string for which completion is required,
(with-current-buffer (let ((,win (minibuffer-selected-window)))
(if (window-live-p ,win) (window-buffer ,win)
(current-buffer)))
- (cond
- ((eq ,mode t) (all-completions ,string (,fun ,string) ,predicate))
- ((not ,mode) (try-completion ,string (,fun ,string) ,predicate))
- (t (test-completion ,string (,fun ,string) ,predicate)))))))
+ (complete-with-action ,mode (,fun ,string) ,string ,predicate)))))
(defmacro lazy-completion-table (var fun)
;; We used to have `&rest args' where `args' were evaluated late (at the
(looking-at (concat "\\(?:" regexp "\\)\\'")))))
(not (null pos))))
+(defsubst looking-at-p (regexp)
+ "\
+Same as `looking-at' except this function does not change the match data."
+ (let ((inhibit-changing-match-data t))
+ (looking-at regexp)))
+
+(defsubst string-match-p (regexp string &optional start)
+ "\
+Same as `string-match' except this function does not change the match data."
+ (let ((inhibit-changing-match-data t))
+ (string-match regexp string start)))
+
(defun subregexp-context-p (regexp pos &optional start)
"Return non-nil if POS is in a normal subregexp context in REGEXP.
A subregexp context is one where a sub-regexp can appear.
list)))
(nreverse list)))
-;; (string->strings (strings->string X)) == X
-(defun strings->string (strings &optional separator)
+(defun combine-and-quote-strings (strings &optional separator)
"Concatenate the STRINGS, adding the SEPARATOR (default \" \").
This tries to quote the strings to avoid ambiguity such that
- (string->strings (strings->string strs)) == strs
+ (split-string-and-unquote (combine-and-quote-strings strs)) == strs
Only some SEPARATORs will work properly."
(let ((sep (or separator " ")))
(mapconcat
str))
strings sep)))
-;; (string->strings (strings->string X)) == X
-(defun string->strings (string &optional separator)
+(defun split-string-and-unquote (string &optional separator)
"Split the STRING into a list of strings.
-It understands elisp style quoting within STRING such that
- (string->strings (strings->string strs)) == strs
+It understands Emacs Lisp quoting within STRING, such that
+ (split-string-and-unquote (combine-and-quote-strings strs)) == strs
The SEPARATOR regexp defaults to \"\\s-+\"."
(let ((sep (or separator "\\s-+"))
(i (string-match "[\"]" string)))
- (if (null i) (split-string string sep t) ; no quoting: easy
+ (if (null i)
+ (split-string string sep t) ; no quoting: easy
(append (unless (eq i 0) (split-string (substring string 0 i) sep t))
(let ((rfs (read-from-string string i)))
(cons (car rfs)
- (string->strings (substring string (cdr rfs))
- sep)))))))
+ (split-string-and-unquote (substring string (cdr rfs))
+ sep)))))))
\f
;;;; Replacement in strings.
HCoop / bpt / emacs.git / blobdiff