diff options
Diffstat (limited to 'lisp/progmodes/cc-cmds.el')
| -rw-r--r-- | lisp/progmodes/cc-cmds.el | 2214 |
1 files changed, 1116 insertions, 1098 deletions
diff --git a/lisp/progmodes/cc-cmds.el b/lisp/progmodes/cc-cmds.el index e9237bb01e2..82268f49433 100644 --- a/lisp/progmodes/cc-cmds.el +++ b/lisp/progmodes/cc-cmds.el @@ -49,6 +49,8 @@ ; which looks at this. (cc-bytecomp-defun electric-pair-post-self-insert-function) (cc-bytecomp-defvar c-indent-to-body-directives) +(cc-bytecomp-defun c-restore-string-fences) +(cc-bytecomp-defun c-clear-string-fences) (defvar c-syntactic-context) ;; Indentation / Display syntax functions @@ -210,35 +212,36 @@ and takes care to set the indentation before calling "Show syntactic information for current line. With universal argument, inserts the analysis as a comment on that line." (interactive "P") - (let* ((c-parsing-error nil) - (syntax (if (boundp 'c-syntactic-context) - ;; Use `c-syntactic-context' in the same way as - ;; `c-indent-line', to be consistent. - c-syntactic-context - (c-save-buffer-state nil - (c-guess-basic-syntax))))) - (if (not (consp arg)) - (let (elem pos ols) - (message "Syntactic analysis: %s" syntax) - (unwind-protect - (progn - (while syntax - (setq elem (pop syntax)) - (when (setq pos (c-langelem-pos elem)) - (push (c-put-overlay pos (1+ pos) - 'face 'highlight) - ols)) - (when (setq pos (c-langelem-2nd-pos elem)) - (push (c-put-overlay pos (1+ pos) - 'face 'secondary-selection) - ols))) - (sit-for 10)) - (while ols - (c-delete-overlay (pop ols))))) - (indent-for-comment) - (insert-and-inherit (format "%s" syntax)) - )) - (c-keep-region-active)) + (c-with-string-fences + (let* ((c-parsing-error nil) + (syntax (if (boundp 'c-syntactic-context) + ;; Use `c-syntactic-context' in the same way as + ;; `c-indent-line', to be consistent. + c-syntactic-context + (c-save-buffer-state nil + (c-guess-basic-syntax))))) + (if (not (consp arg)) + (let (elem pos ols) + (message "Syntactic analysis: %s" syntax) + (unwind-protect + (progn + (while syntax + (setq elem (pop syntax)) + (when (setq pos (c-langelem-pos elem)) + (push (c-put-overlay pos (1+ pos) + 'face 'highlight) + ols)) + (when (setq pos (c-langelem-2nd-pos elem)) + (push (c-put-overlay pos (1+ pos) + 'face 'secondary-selection) + ols))) + (sit-for 10)) + (while ols + (c-delete-overlay (pop ols))))) + (indent-for-comment) + (insert-and-inherit (format "%s" syntax)) + )) + (c-keep-region-active))) (defun c-syntactic-information-on-region (from to) "Insert a comment with the syntactic analysis on every line in the region." @@ -414,23 +417,25 @@ argument is supplied, or `c-hungry-delete-key' is nil, or point is inside a literal then the function in the variable `c-backspace-function' is called." (interactive "*P") - (if (c-save-buffer-state () - (or (not c-hungry-delete-key) - arg - (c-in-literal))) - (funcall c-backspace-function (prefix-numeric-value arg)) - (c-hungry-delete-backwards))) + (c-with-string-fences + (if (c-save-buffer-state () + (or (not c-hungry-delete-key) + arg + (c-in-literal))) + (funcall c-backspace-function (prefix-numeric-value arg)) + (c-hungry-delete-backwards)))) (defun c-hungry-delete-backwards () "Delete the preceding character or all preceding whitespace back to the previous non-whitespace character. See also \\[c-hungry-delete-forward]." (interactive) - (let ((here (point))) - (c-skip-ws-backward) - (if (/= (point) here) - (delete-region (point) here) - (funcall c-backspace-function 1)))) + (c-with-string-fences + (let ((here (point))) + (c-skip-ws-backward) + (if (/= (point) here) + (delete-region (point) here) + (funcall c-backspace-function 1))))) (defalias 'c-hungry-backspace 'c-hungry-delete-backwards) @@ -442,23 +447,26 @@ argument is supplied, or `c-hungry-delete-key' is nil, or point is inside a literal then the function in the variable `c-delete-function' is called." (interactive "*P") - (if (c-save-buffer-state () - (or (not c-hungry-delete-key) - arg - (c-in-literal))) - (funcall c-delete-function (prefix-numeric-value arg)) - (c-hungry-delete-forward))) + (c-with-string-fences + (if + (c-save-buffer-state () + (or (not c-hungry-delete-key) + arg + (c-in-literal))) + (funcall c-delete-function (prefix-numeric-value arg)) + (c-hungry-delete-forward)))) (defun c-hungry-delete-forward () "Delete the following character or all following whitespace up to the next non-whitespace character. See also \\[c-hungry-delete-backwards]." (interactive) - (let ((here (point))) - (c-skip-ws-forward) - (if (/= (point) here) - (delete-region (point) here) - (funcall c-delete-function 1)))) + (c-with-string-fences + (let ((here (point))) + (c-skip-ws-forward) + (if (/= (point) here) + (delete-region (point) here) + (funcall c-delete-function 1))))) ;; This function is only used in XEmacs. (defun c-electric-delete (arg) @@ -519,7 +527,8 @@ function to control that." (defmacro c--call-post-self-insert-hook-more-safely () ;; Call post-self-insert-hook, if such exists. See comment for - ;; `c--call-post-self-insert-hook-more-safely-1'. + ;; `c--call-post-self-insert-hook-more-safely-1'. This macro should be + ;; invoked OUTSIDE of `c-with-string-fences'. (if (boundp 'post-self-insert-hook) '(c--call-post-self-insert-hook-more-safely-1) '(progn))) @@ -530,30 +539,30 @@ If `c-electric-flag' is set, handle it specially according to the variable `c-electric-pound-behavior'. If a numeric ARG is supplied, or if point is inside a literal or a macro, nothing special happens." (interactive "*P") - (if (c-save-buffer-state () - (or arg - (not c-electric-flag) - (not (memq 'alignleft c-electric-pound-behavior)) - (save-excursion - (skip-chars-backward " \t") - (not (bolp))) - (save-excursion - (and (= (forward-line -1) 0) - (progn (end-of-line) - (eq (char-before) ?\\)))) - (c-in-literal))) - ;; do nothing special - (let (post-self-insert-hook) ; Disable random functionality. - (self-insert-command (prefix-numeric-value arg))) - ;; place the pound character at the left edge - (let ((pos (- (point-max) (point))) - (bolp (bolp))) - (beginning-of-line) - (delete-horizontal-space) - (insert (c-last-command-char)) - (and (not bolp) - (goto-char (- (point-max) pos))) - )) + (c-with-string-fences + (if (c-save-buffer-state () + (or arg + (not c-electric-flag) + (not (memq 'alignleft c-electric-pound-behavior)) + (save-excursion + (skip-chars-backward " \t") + (not (bolp))) + (save-excursion + (and (= (forward-line -1) 0) + (progn (end-of-line) + (eq (char-before) ?\\)))) + (c-in-literal))) + ;; do nothing special + (let (post-self-insert-hook) ; Disable random functionality. + (self-insert-command (prefix-numeric-value arg))) + ;; place the pound character at the left edge + (let ((pos (- (point-max) (point))) + (bolp (bolp))) + (beginning-of-line) + (delete-horizontal-space) + (insert (c-last-command-char)) + (and (not bolp) + (goto-char (- (point-max) pos)))))) (c--call-post-self-insert-hook-more-safely)) (defun c-point-syntax () @@ -883,25 +892,26 @@ settings of `c-cleanup-list' are done." (interactive "*P") (let (safepos literal - ;; We want to inhibit blinking the paren since this would be - ;; most disruptive. We'll blink it ourselves later on. - (old-blink-paren blink-paren-function) - blink-paren-function case-fold-search - (at-eol (looking-at "[ \t]*\\\\?$")) - (active-region (and (fboundp 'use-region-p) (use-region-p))) - got-pair-} electric-pair-deletion) - - (c-save-buffer-state () - (setq safepos (c-safe-position (point) (c-parse-state)) - literal (c-in-literal safepos))) - - ;; Insert the brace. Note that expand-abbrev might reindent - ;; the line here if there's a preceding "else" or something. - (let (post-self-insert-hook) ; the only way to get defined functionality - ; from `self-insert-command'. - (self-insert-command (prefix-numeric-value arg))) - - ;; Emulate `electric-pair-mode'. + ;; We want to inhibit blinking the paren since this would be + ;; most disruptive. We'll blink it ourselves later on. + (old-blink-paren blink-paren-function) + blink-paren-function case-fold-search + (at-eol (looking-at "[ \t]*\\\\?$")) + (active-region (and (fboundp 'use-region-p) (use-region-p))) + got-pair-} electric-pair-deletion) + + (c-with-string-fences + (c-save-buffer-state () + (setq safepos (c-safe-position (point) (c-parse-state)) + literal (c-in-literal safepos))) + + ;; Insert the brace. Note that expand-abbrev might reindent + ;; the line here if there's a preceding "else" or something. + (let (post-self-insert-hook) ; the only way to get defined functionality + ; from `self-insert-command'. + (self-insert-command (prefix-numeric-value arg)))) + + ;; Emulate `electric-pair-mode', outside of `c-with-string-fences'. (when (and (boundp 'electric-pair-mode) electric-pair-mode) (let ((size (buffer-size)) @@ -912,30 +922,31 @@ settings of `c-cleanup-list' are done." (eq (char-after) ?})) electric-pair-deletion (< (buffer-size) size)))) - ;; Perform any required CC Mode electric actions. - (cond - ((or literal arg (not c-electric-flag) active-region)) - ((not at-eol) - (c-indent-line)) - (electric-pair-deletion - (c-indent-line) - (c-do-brace-electrics 'ignore nil)) - (t (c-do-brace-electrics nil nil) - (when got-pair-} + (c-with-string-fences + ;; Perform any required CC Mode electric actions. + (cond + ((or literal arg (not c-electric-flag) active-region)) + ((not at-eol) + (c-indent-line)) + (electric-pair-deletion + (c-indent-line) + (c-do-brace-electrics 'ignore nil)) + (t (c-do-brace-electrics nil nil) + (when got-pair-} + (save-excursion + (forward-char) + (c-do-brace-electrics 'assume 'ignore)) + (c-indent-line)))) + + ;; blink the paren + (and (eq (c-last-command-char) ?\}) + (not executing-kbd-macro) + old-blink-paren (save-excursion - (forward-char) - (c-do-brace-electrics 'assume 'ignore)) - (c-indent-line)))) - - ;; blink the paren - (and (eq (c-last-command-char) ?\}) - (not executing-kbd-macro) - old-blink-paren - (save-excursion - (c-save-buffer-state nil - (c-backward-syntactic-ws safepos)) - (funcall old-blink-paren))) - (c--call-post-self-insert-hook-more-safely))) + (c-save-buffer-state nil + (c-backward-syntactic-ws safepos)) + (funcall old-blink-paren))))) + (c--call-post-self-insert-hook-more-safely)) (defun c-electric-slash (arg) "Insert a slash character. @@ -956,39 +967,40 @@ If a numeric ARG is supplied, point is inside a literal, or `c-syntactic-indentation' is nil or `c-electric-flag' is nil, indentation is inhibited." (interactive "*P") - (let ((literal (c-save-buffer-state () (c-in-literal))) - indentp - ;; shut this up - (c-echo-syntactic-information-p nil)) + (c-with-string-fences + (let ((literal (c-save-buffer-state () (c-in-literal))) + indentp + ;; shut this up + (c-echo-syntactic-information-p nil)) - ;; comment-close-slash cleanup? This DOESN'T need `c-electric-flag' or - ;; `c-syntactic-indentation' set. - (when (and (not arg) - (eq literal 'c) - (memq 'comment-close-slash c-cleanup-list) - (eq (c-last-command-char) ?/) - (looking-at (concat "[ \t]*\\(" - (regexp-quote comment-end) "\\)?$")) - ; (eq c-block-comment-ender "*/") ; C-style comments ALWAYS end in */ - (save-excursion - (save-restriction - (narrow-to-region (point-min) (point)) - (back-to-indentation) - (looking-at (concat c-current-comment-prefix "[ \t]*$"))))) - (delete-region (progn (forward-line 0) (point)) - (progn (end-of-line) (point))) - (insert-char ?* 1)) ; the / comes later. ; Do I need a t (retain sticky properties) here? - - (setq indentp (and (not arg) - c-syntactic-indentation - c-electric-flag - (eq (c-last-command-char) ?/) - (eq (char-before) (if literal ?* ?/)))) - (let (post-self-insert-hook) ; Disable random functionality. - (self-insert-command (prefix-numeric-value arg))) - (if indentp - (indent-according-to-mode)) - (c--call-post-self-insert-hook-more-safely))) + ;; comment-close-slash cleanup? This DOESN'T need `c-electric-flag' or + ;; `c-syntactic-indentation' set. + (when (and (not arg) + (eq literal 'c) + (memq 'comment-close-slash c-cleanup-list) + (eq (c-last-command-char) ?/) + (looking-at (concat "[ \t]*\\(" + (regexp-quote comment-end) "\\)?$")) + ; (eq c-block-comment-ender "*/") ; C-style comments ALWAYS end in */ + (save-excursion + (save-restriction + (narrow-to-region (point-min) (point)) + (back-to-indentation) + (looking-at (concat c-current-comment-prefix "[ \t]*$"))))) + (delete-region (progn (forward-line 0) (point)) + (progn (end-of-line) (point))) + (insert-char ?* 1)) ; the / comes later. ; Do I need a t (retain sticky properties) here? + + (setq indentp (and (not arg) + c-syntactic-indentation + c-electric-flag + (eq (c-last-command-char) ?/) + (eq (char-before) (if literal ?* ?/)))) + (let (post-self-insert-hook) ; Disable random functionality. + (self-insert-command (prefix-numeric-value arg))) + (if indentp + (indent-according-to-mode)))) + (c--call-post-self-insert-hook-more-safely)) (defun c-electric-star (arg) "Insert a star character. @@ -999,26 +1011,26 @@ supplied, point is inside a literal, or `c-syntactic-indentation' is nil, this indentation is inhibited." (interactive "*P") - (let (post-self-insert-hook) ; Disable random functionality. - (self-insert-command (prefix-numeric-value arg))) - ;; if we are in a literal, or if arg is given do not reindent the - ;; current line, unless this star introduces a comment-only line. - (if (c-save-buffer-state () - (and c-syntactic-indentation - c-electric-flag - (not arg) - (eq (c-in-literal) 'c) - (eq (char-before) ?*) - (save-excursion - (forward-char -1) - (skip-chars-backward "*") - (if (eq (char-before) ?/) - (forward-char -1)) - (skip-chars-backward " \t") - (bolp)))) - (let (c-echo-syntactic-information-p) ; shut this up - (indent-according-to-mode)) - ) + (c-with-string-fences + (let (post-self-insert-hook) ; Disable random functionality. + (self-insert-command (prefix-numeric-value arg))) + ;; if we are in a literal, or if arg is given do not reindent the + ;; current line, unless this star introduces a comment-only line. + (if (c-save-buffer-state () + (and c-syntactic-indentation + c-electric-flag + (not arg) + (eq (c-in-literal) 'c) + (eq (char-before) ?*) + (save-excursion + (forward-char -1) + (skip-chars-backward "*") + (if (eq (char-before) ?/) + (forward-char -1)) + (skip-chars-backward " \t") + (bolp)))) + (let (c-echo-syntactic-information-p) ; shut this up + (indent-according-to-mode)))) (c--call-post-self-insert-hook-more-safely)) (defun c-electric-semi&comma (arg) @@ -1039,60 +1051,61 @@ reindented unless `c-syntactic-indentation' is nil. semicolon following a defun might be cleaned up, depending on the settings of `c-cleanup-list'." (interactive "*P") - (let* (lim literal c-syntactic-context - (here (point)) - ;; shut this up - (c-echo-syntactic-information-p nil)) - - (c-save-buffer-state () - (setq lim (c-most-enclosing-brace (c-parse-state)) - literal (c-in-literal lim))) - - (let (post-self-insert-hook) ; Disable random functionality. - (self-insert-command (prefix-numeric-value arg))) - - (if (and c-electric-flag (not literal) (not arg)) - ;; do all cleanups and newline insertions if c-auto-newline is on. - (if (or (not c-auto-newline) - (not (looking-at "[ \t]*\\\\?$"))) - (if c-syntactic-indentation - (c-indent-line)) - ;; clean ups: list-close-comma or defun-close-semi - (let ((pos (- (point-max) (point)))) - (if (c-save-buffer-state () - (and (or (and - (eq (c-last-command-char) ?,) - (memq 'list-close-comma c-cleanup-list)) - (and - (eq (c-last-command-char) ?\;) - (memq 'defun-close-semi c-cleanup-list))) - (progn - (forward-char -1) - (c-skip-ws-backward) - (eq (char-before) ?})) - ;; make sure matching open brace isn't in a comment - (not (c-in-literal lim)))) - (delete-region (point) here)) - (goto-char (- (point-max) pos))) - ;; reindent line - (when c-syntactic-indentation - (setq c-syntactic-context (c-guess-basic-syntax)) - (c-indent-line c-syntactic-context)) - ;; check to see if a newline should be added - (let ((criteria c-hanging-semi&comma-criteria) - answer add-newline-p) - (while criteria - (setq answer (funcall (car criteria))) - ;; only nil value means continue checking - (if (not answer) - (setq criteria (cdr criteria)) - (setq criteria nil) - ;; only 'stop specifically says do not add a newline - (setq add-newline-p (not (eq answer 'stop))) - )) - (if add-newline-p - (c-newline-and-indent))))) - (c--call-post-self-insert-hook-more-safely))) + (c-with-string-fences + (let* (lim literal c-syntactic-context + (here (point)) + ;; shut this up + (c-echo-syntactic-information-p nil)) + + (c-save-buffer-state () + (setq lim (c-most-enclosing-brace (c-parse-state)) + literal (c-in-literal lim))) + + (let (post-self-insert-hook) ; Disable random functionality. + (self-insert-command (prefix-numeric-value arg))) + + (if (and c-electric-flag (not literal) (not arg)) + ;; do all cleanups and newline insertions if c-auto-newline is on. + (if (or (not c-auto-newline) + (not (looking-at "[ \t]*\\\\?$"))) + (if c-syntactic-indentation + (c-indent-line)) + ;; clean ups: list-close-comma or defun-close-semi + (let ((pos (- (point-max) (point)))) + (if (c-save-buffer-state () + (and (or (and + (eq (c-last-command-char) ?,) + (memq 'list-close-comma c-cleanup-list)) + (and + (eq (c-last-command-char) ?\;) + (memq 'defun-close-semi c-cleanup-list))) + (progn + (forward-char -1) + (c-skip-ws-backward) + (eq (char-before) ?})) + ;; make sure matching open brace isn't in a comment + (not (c-in-literal lim)))) + (delete-region (point) here)) + (goto-char (- (point-max) pos))) + ;; reindent line + (when c-syntactic-indentation + (setq c-syntactic-context (c-guess-basic-syntax)) + (c-indent-line c-syntactic-context)) + ;; check to see if a newline should be added + (let ((criteria c-hanging-semi&comma-criteria) + answer add-newline-p) + (while criteria + (setq answer (funcall (car criteria))) + ;; only nil value means continue checking + (if (not answer) + (setq criteria (cdr criteria)) + (setq criteria nil) + ;; only 'stop specifically says do not add a newline + (setq add-newline-p (not (eq answer 'stop))) + )) + (if add-newline-p + (c-newline-and-indent))))))) + (c--call-post-self-insert-hook-more-safely)) (defun c-electric-colon (arg) "Insert a colon. @@ -1113,89 +1126,90 @@ reindented unless `c-syntactic-indentation' is nil. `c-cleanup-list'." (interactive "*P") - (let* ((bod (c-point 'bod)) - (literal (c-save-buffer-state () (c-in-literal bod))) - newlines is-scope-op - ;; shut this up - (c-echo-syntactic-information-p nil)) - (let (post-self-insert-hook) ; Disable random functionality. - (self-insert-command (prefix-numeric-value arg))) - ;; Any electric action? - (if (and c-electric-flag (not literal) (not arg)) - ;; Unless we're at EOL, only re-indentation happens. - (if (not (looking-at "[ \t]*\\\\?$")) - (if c-syntactic-indentation - (indent-according-to-mode)) - - ;; scope-operator clean-up? - (let ((pos (- (point-max) (point))) - (here (point))) - (if (c-save-buffer-state () ; Why do we need this? [ACM, 2003-03-12] - (and c-auto-newline - (memq 'scope-operator c-cleanup-list) - (eq (char-before) ?:) - (progn - (forward-char -1) - (c-skip-ws-backward) - (eq (char-before) ?:)) - (not (c-in-literal)) - (not (eq (char-after (- (point) 2)) ?:)))) - (progn - (delete-region (point) (1- here)) - (setq is-scope-op t))) - (goto-char (- (point-max) pos))) - - ;; indent the current line if it's done syntactically. - (if c-syntactic-indentation - ;; Cannot use the same syntax analysis as we find below, - ;; since that's made with c-syntactic-indentation-in-macros - ;; always set to t. - (indent-according-to-mode)) - - ;; Calculate where, if anywhere, we want newlines. - (c-save-buffer-state - ((c-syntactic-indentation-in-macros t) - (c-auto-newline-analysis t) - ;; Turn on syntactic macro analysis to help with auto newlines - ;; only. - (syntax (c-guess-basic-syntax)) - (elem syntax)) - ;; Translate substatement-label to label for this operation. - (while elem - (if (eq (car (car elem)) 'substatement-label) - (setcar (car elem) 'label)) - (setq elem (cdr elem))) - ;; some language elements can only be determined by checking - ;; the following line. Let's first look for ones that can be - ;; found when looking on the line with the colon - (setq newlines - (and c-auto-newline - (or (c-lookup-lists '(case-label label access-label) - syntax c-hanging-colons-alist) - (c-lookup-lists '(member-init-intro inher-intro) - (progn - (insert ?\n) - (unwind-protect - (c-guess-basic-syntax) - (delete-char -1))) - c-hanging-colons-alist))))) - ;; does a newline go before the colon? Watch out for already - ;; non-hung colons. However, we don't unhang them because that - ;; would be a cleanup (and anti-social). - (if (and (memq 'before newlines) - (not is-scope-op) - (save-excursion - (skip-chars-backward ": \t") - (not (bolp)))) - (let ((pos (- (point-max) (point)))) - (forward-char -1) - (c-newline-and-indent) - (goto-char (- (point-max) pos)))) - ;; does a newline go after the colon? - (if (and (memq 'after (cdr-safe newlines)) - (not is-scope-op)) - (c-newline-and-indent)))) - (c--call-post-self-insert-hook-more-safely))) + (c-with-string-fences + (let* ((bod (c-point 'bod)) + (literal (c-save-buffer-state () (c-in-literal bod))) + newlines is-scope-op + ;; shut this up + (c-echo-syntactic-information-p nil)) + (let (post-self-insert-hook) ; Disable random functionality. + (self-insert-command (prefix-numeric-value arg))) + ;; Any electric action? + (if (and c-electric-flag (not literal) (not arg)) + ;; Unless we're at EOL, only re-indentation happens. + (if (not (looking-at "[ \t]*\\\\?$")) + (if c-syntactic-indentation + (indent-according-to-mode)) + + ;; scope-operator clean-up? + (let ((pos (- (point-max) (point))) + (here (point))) + (if (c-save-buffer-state () ; Why do we need this? [ACM, 2003-03-12] + (and c-auto-newline + (memq 'scope-operator c-cleanup-list) + (eq (char-before) ?:) + (progn + (forward-char -1) + (c-skip-ws-backward) + (eq (char-before) ?:)) + (not (c-in-literal)) + (not (eq (char-after (- (point) 2)) ?:)))) + (progn + (delete-region (point) (1- here)) + (setq is-scope-op t))) + (goto-char (- (point-max) pos))) + + ;; indent the current line if it's done syntactically. + (if c-syntactic-indentation + ;; Cannot use the same syntax analysis as we find below, + ;; since that's made with c-syntactic-indentation-in-macros + ;; always set to t. + (indent-according-to-mode)) + + ;; Calculate where, if anywhere, we want newlines. + (c-save-buffer-state + ((c-syntactic-indentation-in-macros t) + (c-auto-newline-analysis t) + ;; Turn on syntactic macro analysis to help with auto newlines + ;; only. + (syntax (c-guess-basic-syntax)) + (elem syntax)) + ;; Translate substatement-label to label for this operation. + (while elem + (if (eq (car (car elem)) 'substatement-label) + (setcar (car elem) 'label)) + (setq elem (cdr elem))) + ;; some language elements can only be determined by checking + ;; the following line. Let's first look for ones that can be + ;; found when looking on the line with the colon + (setq newlines + (and c-auto-newline + (or (c-lookup-lists '(case-label label access-label) + syntax c-hanging-colons-alist) + (c-lookup-lists '(member-init-intro inher-intro) + (progn + (insert ?\n) + (unwind-protect + (c-guess-basic-syntax) + (delete-char -1))) + c-hanging-colons-alist))))) + ;; does a newline go before the colon? Watch out for already + ;; non-hung colons. However, we don't unhang them because that + ;; would be a cleanup (and anti-social). + (if (and (memq 'before newlines) + (not is-scope-op) + (save-excursion + (skip-chars-backward ": \t") + (not (bolp)))) + (let ((pos (- (point-max) (point)))) + (forward-char -1) + (c-newline-and-indent) + (goto-char (- (point-max) pos)))) + ;; does a newline go after the colon? + (if (and (memq 'after (cdr-safe newlines)) + (not is-scope-op)) + (c-newline-and-indent)))))) + (c--call-post-self-insert-hook-more-safely)) (defun c-electric-lt-gt (arg) "Insert a \"<\" or \">\" character. @@ -1209,74 +1223,75 @@ finishes a C++ style stream operator in C++ mode. Exceptions are when a numeric argument is supplied, or the point is inside a literal." (interactive "*P") - (let ((literal (c-save-buffer-state () (c-in-literal))) - template-delim include-delim + (let (template-delim include-delim (c-echo-syntactic-information-p nil) final-pos found-delim case-fold-search) - (let (post-self-insert-hook) ; Disable random functionality. - (self-insert-command (prefix-numeric-value arg))) - (setq final-pos (point)) + (c-with-string-fences + (let (post-self-insert-hook) ; Disable random functionality. + (self-insert-command (prefix-numeric-value arg))) + (setq final-pos (point)) ;;;; 2010-01-31: There used to be code here to put a syntax-table text ;;;; property on the new < or > and its mate (if any) when they are template ;;;; parens. This is now done in an after-change function. - (when (and (not arg) (not literal)) - ;; Have we got a delimiter on a #include directive? - (beginning-of-line) - (setq include-delim - (and - (looking-at c-cpp-include-key) - (if (eq (c-last-command-char) ?<) - (eq (match-end 0) (1- final-pos)) - (goto-char (1- final-pos)) - (skip-chars-backward "^<>" (c-point 'bol)) - (eq (char-before) ?<)))) - (goto-char final-pos) - - ;; Indent the line if appropriate. - (when (and c-electric-flag c-syntactic-indentation c-recognize-<>-arglists) - (setq found-delim + (when (and (not arg) + (not (c-save-buffer-state () (c-in-literal)))) + ;; Have we got a delimiter on a #include directive? + (beginning-of-line) + (setq include-delim + (and + (looking-at c-cpp-include-key) (if (eq (c-last-command-char) ?<) - ;; If a <, basically see if it's got "template" before it ..... - (or (and (progn - (backward-char) - (= (point) - (progn (c-beginning-of-current-token) (point)))) - (progn - (c-backward-token-2) - (looking-at c-opt-<>-sexp-key)) - (setq template-delim t)) - ;; ..... or is a C++ << operator. - (and (c-major-mode-is 'c++-mode) - (progn - (goto-char (1- final-pos)) - (c-beginning-of-current-token) - (looking-at "<<")) - (>= (match-end 0) final-pos))) - - ;; It's a >. Either a template/generic terminator ... - (or (and (c-get-char-property (1- final-pos) 'syntax-table) - (setq template-delim t)) - ;; or a C++ >> operator. - (and (c-major-mode-is 'c++-mode) - (progn - (goto-char (1- final-pos)) - (c-beginning-of-current-token) - (looking-at ">>")) - (>= (match-end 0) final-pos))))) - (goto-char final-pos) - - (when found-delim - (indent-according-to-mode))) - - ;; On the off chance that < and > are configured as pairs in - ;; electric-pair-mode. - (when (and (boundp 'electric-pair-mode) electric-pair-mode - (or template-delim include-delim)) - (let (post-self-insert-hook) - (electric-pair-post-self-insert-function)))) + (eq (match-end 0) (1- final-pos)) + (goto-char (1- final-pos)) + (skip-chars-backward "^<>" (c-point 'bol)) + (eq (char-before) ?<)))) + (goto-char final-pos) + + ;; Indent the line if appropriate. + (when (and c-electric-flag c-syntactic-indentation c-recognize-<>-arglists) + (setq found-delim + (if (eq (c-last-command-char) ?<) + ;; If a <, basically see if it's got "template" before it ..... + (or (and (progn + (backward-char) + (= (point) + (progn (c-beginning-of-current-token) (point)))) + (progn + (c-backward-token-2) + (looking-at c-opt-<>-sexp-key)) + (setq template-delim t)) + ;; ..... or is a C++ << operator. + (and (c-major-mode-is 'c++-mode) + (progn + (goto-char (1- final-pos)) + (c-beginning-of-current-token) + (looking-at "<<")) + (>= (match-end 0) final-pos))) + + ;; It's a >. Either a template/generic terminator ... + (or (and (c-get-char-property (1- final-pos) 'syntax-table) + (setq template-delim t)) + ;; or a C++ >> operator. + (and (c-major-mode-is 'c++-mode) + (progn + (goto-char (1- final-pos)) + (c-beginning-of-current-token) + (looking-at ">>")) + (>= (match-end 0) final-pos))))) + (goto-char final-pos) + + (when found-delim + (indent-according-to-mode))))) + + ;; On the off chance that < and > are configured as pairs in + ;; electric-pair-mode. + (when (and (boundp 'electric-pair-mode) electric-pair-mode + (or template-delim include-delim)) + (let (post-self-insert-hook) + (electric-pair-post-self-insert-function))) (when found-delim (when (and (eq (char-before) ?>) @@ -1301,12 +1316,13 @@ removed; see the variable `c-cleanup-list'. Also, if `c-electric-flag' and `c-auto-newline' are both non-nil, some newline cleanups are done if appropriate; see the variable `c-cleanup-list'." (interactive "*P") - (let ((literal (c-save-buffer-state () (c-in-literal))) + (let ((literal (c-save-buffer-state () + (c-with-string-fences (c-in-literal)))) ;; shut this up (c-echo-syntactic-information-p nil) case-fold-search) (let (post-self-insert-hook) ; The only way to get defined functionality - ; from `self-insert-command'. + ; from `self-insert-command'. (self-insert-command (prefix-numeric-value arg))) (if (and (not arg) (not literal)) @@ -1315,46 +1331,47 @@ newline cleanups are done if appropriate; see the variable `c-cleanup-list'." ;; afterwards. (old-blink-paren blink-paren-function) blink-paren-function) - (if (and c-syntactic-indentation c-electric-flag) - (indent-according-to-mode)) - - ;; If we're at EOL, check for new-line clean-ups. - (when (and c-electric-flag c-auto-newline - (looking-at "[ \t]*\\\\?$")) - - ;; clean up brace-elseif-brace - (when - (and (memq 'brace-elseif-brace c-cleanup-list) - (eq (c-last-command-char) ?\() - (re-search-backward - (concat "}" - "\\([ \t\n]\\|\\\\\n\\)*" - "else" - "\\([ \t\n]\\|\\\\\n\\)+" - "if" - "\\([ \t\n]\\|\\\\\n\\)*" - "(" - "\\=") - nil t) - (not (c-save-buffer-state () (c-in-literal)))) - (delete-region (match-beginning 0) (match-end 0)) - (insert-and-inherit "} else if (")) - - ;; clean up brace-catch-brace - (when - (and (memq 'brace-catch-brace c-cleanup-list) - (eq (c-last-command-char) ?\() - (re-search-backward - (concat "}" - "\\([ \t\n]\\|\\\\\n\\)*" - "catch" - "\\([ \t\n]\\|\\\\\n\\)*" - "(" - "\\=") - nil t) - (not (c-save-buffer-state () (c-in-literal)))) - (delete-region (match-beginning 0) (match-end 0)) - (insert-and-inherit "} catch ("))) + (c-with-string-fences + (if (and c-syntactic-indentation c-electric-flag) + (indent-according-to-mode)) + + ;; If we're at EOL, check for new-line clean-ups. + (when (and c-electric-flag c-auto-newline + (looking-at "[ \t]*\\\\?$")) + + ;; clean up brace-elseif-brace + (when + (and (memq 'brace-elseif-brace c-cleanup-list) + (eq (c-last-command-char) ?\() + (re-search-backward + (concat "}" + "\\([ \t\n]\\|\\\\\n\\)*" + "else" + "\\([ \t\n]\\|\\\\\n\\)+" + "if" + "\\([ \t\n]\\|\\\\\n\\)*" + "(" + "\\=") + nil t) + (not (c-save-buffer-state () (c-in-literal)))) + (delete-region (match-beginning 0) (match-end 0)) + (insert-and-inherit "} else if (")) + + ;; clean up brace-catch-brace + (when + (and (memq 'brace-catch-brace c-cleanup-list) + (eq (c-last-command-char) ?\() + (re-search-backward + (concat "}" + "\\([ \t\n]\\|\\\\\n\\)*" + "catch" + "\\([ \t\n]\\|\\\\\n\\)*" + "(" + "\\=") + nil t) + (not (c-save-buffer-state () (c-in-literal)))) + (delete-region (match-beginning 0) (match-end 0)) + (insert-and-inherit "} catch (")))) ;; Apply `electric-pair-mode' stuff. (when (and (boundp 'electric-pair-mode) @@ -1362,41 +1379,42 @@ newline cleanups are done if appropriate; see the variable `c-cleanup-list'." (let (post-self-insert-hook) (electric-pair-post-self-insert-function))) - ;; Check for clean-ups at function calls. These two DON'T need - ;; `c-electric-flag' or `c-syntactic-indentation' set. - ;; Point is currently just after the inserted paren. - (let (beg (end (1- (point)))) - (cond - - ;; space-before-funcall clean-up? - ((and (memq 'space-before-funcall c-cleanup-list) - (eq (c-last-command-char) ?\() - (save-excursion - (backward-char) - (skip-chars-backward " \t") - (setq beg (point)) - (and (c-save-buffer-state () (c-on-identifier)) - ;; Don't add a space into #define FOO().... - (not (and (c-beginning-of-macro) - (c-forward-over-cpp-define-id) - (eq (point) beg)))))) - (save-excursion - (delete-region beg end) - (goto-char beg) - (insert ?\ ))) - - ;; compact-empty-funcall clean-up? - ((c-save-buffer-state () - (and (memq 'compact-empty-funcall c-cleanup-list) - (eq (c-last-command-char) ?\)) - (save-excursion - (c-safe (backward-char 2)) - (when (looking-at "()") - (setq end (point)) - (skip-chars-backward " \t") - (setq beg (point)) - (c-on-identifier))))) - (delete-region beg end)))) + (c-with-string-fences + ;; Check for clean-ups at function calls. These two DON'T need + ;; `c-electric-flag' or `c-syntactic-indentation' set. + ;; Point is currently just after the inserted paren. + (let (beg (end (1- (point)))) + (cond + + ;; space-before-funcall clean-up? + ((and (memq 'space-before-funcall c-cleanup-list) + (eq (c-last-command-char) ?\() + (save-excursion + (backward-char) + (skip-chars-backward " \t") + (setq beg (point)) + (and (c-save-buffer-state () (c-on-identifier)) + ;; Don't add a space into #define FOO().... + (not (and (c-beginning-of-macro) + (c-forward-over-cpp-define-id) + (eq (point) beg)))))) + (save-excursion + (delete-region beg end) + (goto-char beg) + (insert ?\ ))) + + ;; compact-empty-funcall clean-up? + ((c-save-buffer-state () + (and (memq 'compact-empty-funcall c-cleanup-list) + (eq (c-last-command-char) ?\)) + (save-excursion + (c-safe (backward-char 2)) + (when (looking-at "()") + (setq end (point)) + (skip-chars-backward " \t") + (setq beg (point)) + (c-on-identifier))))) + (delete-region beg end))))) (and (eq last-input-event ?\)) (not executing-kbd-macro) old-blink-paren @@ -1405,8 +1423,8 @@ newline cleanups are done if appropriate; see the variable `c-cleanup-list'." ;; Apply `electric-pair-mode' stuff inside a string or comment. (when (and (boundp 'electric-pair-mode) electric-pair-mode) (let (post-self-insert-hook) - (electric-pair-post-self-insert-function)))) - (c--call-post-self-insert-hook-more-safely))) + (electric-pair-post-self-insert-function))))) + (c--call-post-self-insert-hook-more-safely)) (defun c-electric-continued-statement () "Reindent the current line if appropriate. @@ -1868,70 +1886,71 @@ defun." (c-region-is-active-p) (push-mark)) - (c-save-buffer-state - (beginning-of-defun-function - end-of-defun-function - (paren-state (c-parse-state)) - (orig-point-min (point-min)) (orig-point-max (point-max)) - lim ; Position of { which has been widened to. - where pos case-fold-search) - - (save-restriction - (if (eq c-defun-tactic 'go-outward) - (setq lim (c-widen-to-enclosing-decl-scope ; e.g. class, namespace. - paren-state orig-point-min orig-point-max))) - - ;; Move back out of any macro/comment/string we happen to be in. - (c-beginning-of-macro) - (setq pos (c-literal-start)) - (if pos (goto-char pos)) - - (setq where (c-where-wrt-brace-construct)) - - (if (< arg 0) - ;; Move forward to the closing brace of a function. - (progn - (if (memq where '(at-function-end outwith-function)) - (setq arg (1+ arg))) - (if (< arg 0) - (c-while-widening-to-decl-block - (< (setq arg (- (c-forward-to-nth-EOF-\;-or-} (- arg) where))) 0))) - (prog1 - ;; Move forward to the next opening brace.... - (when (and (= arg 0) - (progn - (c-while-widening-to-decl-block - (not (c-syntactic-re-search-forward "{" nil 'eob))) - (eq (char-before) ?{))) - (backward-char) - ;; ... and backward to the function header. - (c-beginning-of-decl-1) - t) - (c-keep-region-active))) - - ;; Move backward to the opening brace of a function, making successively - ;; larger portions of the buffer visible as necessary. - (when (> arg 0) - (c-while-widening-to-decl-block - (> (setq arg (c-backward-to-nth-BOF-{ arg where)) 0))) - - (when (eq arg 0) - ;; Go backward to this function's header. - (c-beginning-of-decl-1) - - (setq pos (point)) - ;; We're now there, modulo comments and whitespace. - ;; Try to be line oriented; position point at the closest - ;; preceding boi that isn't inside a comment, but if we hit - ;; the previous declaration then we use the current point - ;; instead. - (while (and (/= (point) (c-point 'boi)) - (c-backward-single-comment))) - (if (/= (point) (c-point 'boi)) - (goto-char pos))) - - (c-keep-region-active) - (= arg 0))))) + (c-with-string-fences + (c-save-buffer-state + (beginning-of-defun-function + end-of-defun-function + (paren-state (c-parse-state)) + (orig-point-min (point-min)) (orig-point-max (point-max)) + lim ; Position of { which has been widened to. + where pos case-fold-search) + + (save-restriction + (if (eq c-defun-tactic 'go-outward) + (setq lim (c-widen-to-enclosing-decl-scope ; e.g. class, namespace. + paren-state orig-point-min orig-point-max))) + + ;; Move back out of any macro/comment/string we happen to be in. + (c-beginning-of-macro) + (setq pos (c-literal-start)) + (if pos (goto-char pos)) + + (setq where (c-where-wrt-brace-construct)) + + (if (< arg 0) + ;; Move forward to the closing brace of a function. + (progn + (if (memq where '(at-function-end outwith-function)) + (setq arg (1+ arg))) + (if (< arg 0) + (c-while-widening-to-decl-block + (< (setq arg (- (c-forward-to-nth-EOF-\;-or-} (- arg) where))) 0))) + (prog1 + ;; Move forward to the next opening brace.... + (when (and (= arg 0) + (progn + (c-while-widening-to-decl-block + (not (c-syntactic-re-search-forward "{" nil 'eob))) + (eq (char-before) ?{))) + (backward-char) + ;; ... and backward to the function header. + (c-beginning-of-decl-1) + t) + (c-keep-region-active))) + + ;; Move backward to the opening brace of a function, making successively + ;; larger portions of the buffer visible as necessary. + (when (> arg 0) + (c-while-widening-to-decl-block + (> (setq arg (c-backward-to-nth-BOF-{ arg where)) 0))) + + (when (eq arg 0) + ;; Go backward to this function's header. + (c-beginning-of-decl-1) + + (setq pos (point)) + ;; We're now there, modulo comments and whitespace. + ;; Try to be line oriented; position point at the closest + ;; preceding boi that isn't inside a comment, but if we hit + ;; the previous declaration then we use the current point + ;; instead. + (while (and (/= (point) (c-point 'boi)) + (c-backward-single-comment))) + (if (/= (point) (c-point 'boi)) + (goto-char pos))) + + (c-keep-region-active) + (= arg 0)))))) (defun c-forward-to-nth-EOF-\;-or-} (n where) ;; Skip to the closing brace or semicolon of the Nth function after point. @@ -1998,65 +2017,66 @@ the open-parenthesis that starts a defun; see `beginning-of-defun'." (c-region-is-active-p) (push-mark)) - (c-save-buffer-state - (beginning-of-defun-function - end-of-defun-function - (paren-state (c-parse-state)) - (orig-point-min (point-min)) (orig-point-max (point-max)) - lim - where pos case-fold-search) - - (save-restriction - (if (eq c-defun-tactic 'go-outward) - (setq lim (c-widen-to-enclosing-decl-scope ; e.g. class, namespace - paren-state orig-point-min orig-point-max))) - - ;; Move back out of any macro/comment/string we happen to be in. - (c-beginning-of-macro) - (setq pos (c-literal-start)) - (if pos (goto-char pos)) + (c-with-string-fences + (c-save-buffer-state + (beginning-of-defun-function + end-of-defun-function + (paren-state (c-parse-state)) + (orig-point-min (point-min)) (orig-point-max (point-max)) + lim + where pos case-fold-search) + + (save-restriction + (if (eq c-defun-tactic 'go-outward) + (setq lim (c-widen-to-enclosing-decl-scope ; e.g. class, namespace + paren-state orig-point-min orig-point-max))) + + ;; Move back out of any macro/comment/string we happen to be in. + (c-beginning-of-macro) + (setq pos (c-literal-start)) + (if pos (goto-char pos)) + + (setq where (c-where-wrt-brace-construct)) + + (if (< arg 0) + ;; Move backwards to the } of a function + (progn + (if (memq where '(at-header outwith-function)) + (setq arg (1+ arg))) + (if (< arg 0) + (c-while-widening-to-decl-block + (< (setq arg (- (c-backward-to-nth-BOF-{ (- arg) where))) 0))) + (if (= arg 0) + (c-while-widening-to-decl-block + (progn (c-syntactic-skip-backward "^}") + (not (eq (char-before) ?})))))) + + ;; Move forward to the } of a function + (if (> arg 0) + (c-while-widening-to-decl-block + (> (setq arg (c-forward-to-nth-EOF-\;-or-} arg where)) 0)))) + + ;; Do we need to move forward from the brace to the semicolon? + (when (eq arg 0) + (if (c-in-function-trailer-p) ; after "}" of struct/enum, etc. + (c-syntactic-re-search-forward ";")) - (setq where (c-where-wrt-brace-construct)) + (setq pos (point)) + ;; We're there now, modulo comments and whitespace. + ;; Try to be line oriented; position point after the next + ;; newline that isn't inside a comment, but if we hit the + ;; next declaration then we use the current point instead. + (while (and (not (bolp)) + (not (looking-at "\\s *$")) + (c-forward-single-comment))) + (cond ((bolp)) + ((looking-at "\\s *$") + (forward-line 1)) + (t + (goto-char pos)))) - (if (< arg 0) - ;; Move backwards to the } of a function - (progn - (if (memq where '(at-header outwith-function)) - (setq arg (1+ arg))) - (if (< arg 0) - (c-while-widening-to-decl-block - (< (setq arg (- (c-backward-to-nth-BOF-{ (- arg) where))) 0))) - (if (= arg 0) - (c-while-widening-to-decl-block - (progn (c-syntactic-skip-backward "^}") - (not (eq (char-before) ?})))))) - - ;; Move forward to the } of a function - (if (> arg 0) - (c-while-widening-to-decl-block - (> (setq arg (c-forward-to-nth-EOF-\;-or-} arg where)) 0)))) - - ;; Do we need to move forward from the brace to the semicolon? - (when (eq arg 0) - (if (c-in-function-trailer-p) ; after "}" of struct/enum, etc. - (c-syntactic-re-search-forward ";")) - - (setq pos (point)) - ;; We're there now, modulo comments and whitespace. - ;; Try to be line oriented; position point after the next - ;; newline that isn't inside a comment, but if we hit the - ;; next declaration then we use the current point instead. - (while (and (not (bolp)) - (not (looking-at "\\s *$")) - (c-forward-single-comment))) - (cond ((bolp)) - ((looking-at "\\s *$") - (forward-line 1)) - (t - (goto-char pos)))) - - (c-keep-region-active) - (= arg 0)))) + (c-keep-region-active) + (= arg 0))))) (defun c-defun-name-1 () "Return name of current defun, at current narrowing, or nil if there isn't one. @@ -2095,13 +2115,12 @@ with a brace block." (c-forward-syntactic-ws) (when (eq (char-after) ?\") (forward-sexp 1) + (c-forward-syntactic-ws) (c-forward-token-2)) ; over the comma and following WS. - (buffer-substring-no-properties - (point) - (progn - (c-forward-token-2) - (c-backward-syntactic-ws) - (point)))) + (setq pos (point)) + (and (zerop (c-forward-token-2)) + (progn (c-backward-syntactic-ws) t) + (buffer-substring-no-properties pos (point)))) ((and (c-major-mode-is 'objc-mode) (looking-at "[-+]\\s-*(")) ; Objective-C method ;; Move to the beginning of the method name. @@ -2342,18 +2361,19 @@ with a brace block, at the outermost level of nesting." "Display the name of the current CC mode defun and the position in it. With a prefix arg, push the name onto the kill ring too." (interactive "P") - (save-restriction - (widen) - (c-save-buffer-state ((name-and-limits (c-defun-name-and-limits nil)) - (name (car name-and-limits)) - (limits (cdr name-and-limits)) - (point-bol (c-point 'bol))) - (when name - (message "%s. Line %s/%s." name - (1+ (count-lines (car limits) (max point-bol (car limits)))) - (count-lines (car limits) (cdr limits))) - (if arg (kill-new name)) - (sit-for 3 t))))) + (c-with-string-fences + (save-restriction + (widen) + (c-save-buffer-state ((name-and-limits (c-defun-name-and-limits nil)) + (name (car name-and-limits)) + (limits (cdr name-and-limits)) + (point-bol (c-point 'bol))) + (when name + (message "%s. Line %s/%s." name + (1+ (count-lines (car limits) (max point-bol (car limits)))) + (count-lines (car limits) (cdr limits))) + (if arg (kill-new name)) + (sit-for 3 t)))))) (put 'c-display-defun-name 'isearch-scroll t) (defun c-mark-function () @@ -2369,34 +2389,35 @@ As opposed to \\[c-beginning-of-defun] and \\[c-end-of-defun], this function does not require the declaration to contain a brace block." (interactive) - (let (decl-limits case-fold-search) - (c-save-buffer-state nil - ;; We try to be line oriented, unless there are several - ;; declarations on the same line. - (if (looking-at c-syntactic-eol) - (c-backward-token-2 1 nil (c-point 'bol))) - (setq decl-limits (c-declaration-limits t))) - - (if (not decl-limits) - (error "Cannot find any declaration") - (let* ((extend-region-p - (and (eq this-command 'c-mark-function) - (eq last-command 'c-mark-function))) - (push-mark-p (and (eq this-command 'c-mark-function) - (not extend-region-p) - (not (c-region-is-active-p))))) - (if push-mark-p (push-mark)) - (if extend-region-p - (progn - (exchange-point-and-mark) - (setq decl-limits (c-declaration-limits t)) - (when (not decl-limits) - (exchange-point-and-mark) - (error "Cannot find any declaration")) - (goto-char (cdr decl-limits)) - (exchange-point-and-mark)) - (goto-char (car decl-limits)) - (push-mark (cdr decl-limits) nil t)))))) + (c-with-string-fences + (let (decl-limits case-fold-search) + (c-save-buffer-state nil + ;; We try to be line oriented, unless there are several + ;; declarations on the same line. + (if (looking-at c-syntactic-eol) + (c-backward-token-2 1 nil (c-point 'bol))) + (setq decl-limits (c-declaration-limits t))) + + (if (not decl-limits) + (error "Cannot find any declaration") + (let* ((extend-region-p + (and (eq this-command 'c-mark-function) + (eq last-command 'c-mark-function))) + (push-mark-p (and (eq this-command 'c-mark-function) + (not extend-region-p) + (not (c-region-is-active-p))))) + (if push-mark-p (push-mark)) + (if extend-region-p + (progn + (exchange-point-and-mark) + (setq decl-limits (c-declaration-limits t)) + (when (not decl-limits) + (exchange-point-and-mark) + (error "Cannot find any declaration")) + (goto-char (cdr decl-limits)) + (exchange-point-and-mark)) + (goto-char (car decl-limits)) + (push-mark (cdr decl-limits) nil t))))))) (defun c-cpp-define-name () "Return the name of the current CPP macro, or NIL if we're not in one." @@ -3033,85 +3054,86 @@ be more \"DWIM:ey\"." nil t)) (if (< count 0) (c-end-of-statement (- count) lim sentence-flag) - (c-save-buffer-state - ((count (or count 1)) - last ; start point for going back ONE chunk. Updated each chunk movement. - (macro-fence - (save-excursion (and (not (bobp)) (c-beginning-of-macro) (point)))) - res ; result from sub-function call - not-bos ; "not beginning-of-statement" - (range (c-collect-line-comments (c-literal-limits lim)))) ; (start.end) of current literal or NIL - - ;; Go back one statement at each iteration of the following loop. - (while (and (/= count 0) - (or (not lim) (> (point) lim))) - ;; Go back one "chunk" each time round the following loop, stopping - ;; when we reach a statement boundary, etc. - (setq last (point)) - (while - (cond ; Each arm of this cond returns NIL on reaching a desired - ; statement boundary, non-NIL otherwise. - ((bobp) - (setq count 0) - nil) - - (range ; point is within or approaching a literal. - (cond - ;; Single line string or sentence-flag is null => skip the - ;; entire literal. - ((or (null sentence-flag) - (c-one-line-string-p range)) - (goto-char (car range)) - (setq range (c-ascertain-preceding-literal)) - ;; N.B. The following is essentially testing for an AWK regexp - ;; at BOS: - ;; Was the previous non-ws thing an end of statement? - (save-excursion - (if macro-fence - (c-backward-comments) - (c-backward-syntactic-ws)) - (not (or (bobp) (c-after-statement-terminator-p))))) - - ;; Comment inside a statement or a multi-line string. - (t (when (setq res ; returns non-nil when we go out of the literal - (if (eq (c-literal-type range) 'string) - (c-beginning-of-sentence-in-string range) - (c-beginning-of-sentence-in-comment range))) - (setq range (c-ascertain-preceding-literal))) - res))) - - ;; Non-literal code. - (t (setq res (c-back-over-illiterals macro-fence)) - (setq not-bos ; "not reached beginning-of-statement". - (or (= (point) last) - (memq (char-after) '(?\) ?\})) - (and - (car res) - ;; We're at a tentative BOS. The next form goes - ;; back over WS looking for an end of previous - ;; statement. - (not (save-excursion - (if macro-fence - (c-backward-comments) - (c-backward-syntactic-ws)) - (or (bobp) (c-after-statement-terminator-p))))))) - ;; Are we about to move backwards into or out of a - ;; preprocessor command? If so, locate its beginning. - (when (eq (cdr res) 'macro-boundary) - (save-excursion - (beginning-of-line) - (setq macro-fence - (and (not (bobp)) - (progn (c-skip-ws-backward) (c-beginning-of-macro)) - (point))))) - ;; Are we about to move backwards into a literal? - (when (memq (cdr res) '(macro-boundary literal)) - (setq range (c-ascertain-preceding-literal))) - not-bos)) - (setq last (point))) - - (if (/= count 0) (setq count (1- count)))) - (c-keep-region-active)))) + (c-with-string-fences + (c-save-buffer-state + ((count (or count 1)) + last ; start point for going back ONE chunk. Updated each chunk movement. + (macro-fence + (save-excursion (and (not (bobp)) (c-beginning-of-macro) (point)))) + res ; result from sub-function call + not-bos ; "not beginning-of-statement" + (range (c-collect-line-comments (c-literal-limits lim)))) ; (start.end) of current literal or NIL + + ;; Go back one statement at each iteration of the following loop. + (while (and (/= count 0) + (or (not lim) (> (point) lim))) + ;; Go back one "chunk" each time round the following loop, stopping + ;; when we reach a statement boundary, etc. + (setq last (point)) + (while + (cond ; Each arm of this cond returns NIL on reaching a desired + ; statement boundary, non-NIL otherwise. + ((bobp) + (setq count 0) + nil) + + (range ; point is within or approaching a literal. + (cond + ;; Single line string or sentence-flag is null => skip the + ;; entire literal. + ((or (null sentence-flag) + (c-one-line-string-p range)) + (goto-char (car range)) + (setq range (c-ascertain-preceding-literal)) + ;; N.B. The following is essentially testing for an AWK regexp + ;; at BOS: + ;; Was the previous non-ws thing an end of statement? + (save-excursion + (if macro-fence + (c-backward-comments) + (c-backward-syntactic-ws)) + (not (or (bobp) (c-after-statement-terminator-p))))) + + ;; Comment inside a statement or a multi-line string. + (t (when (setq res ; returns non-nil when we go out of the literal + (if (eq (c-literal-type range) 'string) + (c-beginning-of-sentence-in-string range) + (c-beginning-of-sentence-in-comment range))) + (setq range (c-ascertain-preceding-literal))) + res))) + + ;; Non-literal code. + (t (setq res (c-back-over-illiterals macro-fence)) + (setq not-bos ; "not reached beginning-of-statement". + (or (= (point) last) + (memq (char-after) '(?\) ?\})) + (and + (car res) + ;; We're at a tentative BOS. The next form goes + ;; back over WS looking for an end of previous + ;; statement. + (not (save-excursion + (if macro-fence + (c-backward-comments) + (c-backward-syntactic-ws)) + (or (bobp) (c-after-statement-terminator-p))))))) + ;; Are we about to move backwards into or out of a + ;; preprocessor command? If so, locate its beginning. + (when (eq (cdr res) 'macro-boundary) + (save-excursion + (beginning-of-line) + (setq macro-fence + (and (not (bobp)) + (progn (c-skip-ws-backward) (c-beginning-of-macro)) + (point))))) + ;; Are we about to move backwards into a literal? + (when (memq (cdr res) '(macro-boundary literal)) + (setq range (c-ascertain-preceding-literal))) + not-bos)) + (setq last (point))) + + (if (/= count 0) (setq count (1- count)))) + (c-keep-region-active))))) (defun c-end-of-statement (&optional count lim sentence-flag) "Go to the end of the innermost C statement. @@ -3129,78 +3151,79 @@ sentence motion in or near comments and multiline strings." (setq count (or count 1)) (if (< count 0) (c-beginning-of-statement (- count) lim sentence-flag) - (c-save-buffer-state - (here ; start point for going forward ONE statement. Updated each statement. - (macro-fence - (save-excursion - (and (not (eobp)) (c-beginning-of-macro) - (progn (c-end-of-macro) (point))))) - res - (range (c-collect-line-comments (c-literal-limits lim)))) ; (start.end) of current literal or NIL - - ;; Go back/forward one statement at each iteration of the following loop. - (while (and (/= count 0) - (or (not lim) (< (point) lim))) - (setq here (point)) ; ONLY HERE is HERE updated - - ;; Go forward one "chunk" each time round the following loop, stopping - ;; when we reach a statement boundary, etc. - (while - (cond ; Each arm of this cond returns NIL on reaching a desired - ; statement boundary, non-NIL otherwise. - ((eobp) - (setq count 0) - nil) + (c-with-string-fences + (c-save-buffer-state + (here ; start point for going forward ONE statement. Updated each statement. + (macro-fence + (save-excursion + (and (not (eobp)) (c-beginning-of-macro) + (progn (c-end-of-macro) (point))))) + res + (range (c-collect-line-comments (c-literal-limits lim)))) ; (start.end) of current literal or NIL + + ;; Go back/forward one statement at each iteration of the following loop. + (while (and (/= count 0) + (or (not lim) (< (point) lim))) + (setq here (point)) ; ONLY HERE is HERE updated + + ;; Go forward one "chunk" each time round the following loop, stopping + ;; when we reach a statement boundary, etc. + (while + (cond ; Each arm of this cond returns NIL on reaching a desired + ; statement boundary, non-NIL otherwise. + ((eobp) + (setq count 0) + nil) + + (range ; point is within a literal. + (cond + ;; sentence-flag is null => skip the entire literal. + ;; or a Single line string. + ((or (null sentence-flag) + (c-one-line-string-p range)) + (goto-char (cdr range)) + (setq range (c-ascertain-following-literal)) + ;; Is there a virtual semicolon here (e.g. for AWK)? + (not (c-at-vsemi-p))) + + ;; Comment or multi-line string. + (t (when (setq res ; gets non-nil when we go out of the literal + (if (eq (c-literal-type range) 'string) + (c-end-of-sentence-in-string range) + (c-end-of-sentence-in-comment range))) + (setq range (c-ascertain-following-literal))) + ;; If we've just come forward out of a literal, check for + ;; vsemi. (N.B. AWK can't have a vsemi after a comment, but + ;; some other language may do in the future) + (and res + (not (c-at-vsemi-p)))))) + + ;; Non-literal code. + (t (setq res (c-forward-over-illiterals macro-fence + (> (point) here))) + ;; Are we about to move forward into or out of a + ;; preprocessor command? + (when (eq (cdr res) 'macro-boundary) + (setq macro-fence + (save-excursion + (if macro-fence + (progn + (end-of-line) + (and (not (eobp)) + (progn (c-skip-ws-forward) + (c-beginning-of-macro)) + (progn (c-end-of-macro) + (point)))) + (and (not (eobp)) + (c-beginning-of-macro) + (progn (c-end-of-macro) (point))))))) + ;; Are we about to move forward into a literal? + (when (memq (cdr res) '(macro-boundary literal)) + (setq range (c-ascertain-following-literal))) + (car res)))) - (range ; point is within a literal. - (cond - ;; sentence-flag is null => skip the entire literal. - ;; or a Single line string. - ((or (null sentence-flag) - (c-one-line-string-p range)) - (goto-char (cdr range)) - (setq range (c-ascertain-following-literal)) - ;; Is there a virtual semicolon here (e.g. for AWK)? - (not (c-at-vsemi-p))) - - ;; Comment or multi-line string. - (t (when (setq res ; gets non-nil when we go out of the literal - (if (eq (c-literal-type range) 'string) - (c-end-of-sentence-in-string range) - (c-end-of-sentence-in-comment range))) - (setq range (c-ascertain-following-literal))) - ;; If we've just come forward out of a literal, check for - ;; vsemi. (N.B. AWK can't have a vsemi after a comment, but - ;; some other language may do in the future) - (and res - (not (c-at-vsemi-p)))))) - - ;; Non-literal code. - (t (setq res (c-forward-over-illiterals macro-fence - (> (point) here))) - ;; Are we about to move forward into or out of a - ;; preprocessor command? - (when (eq (cdr res) 'macro-boundary) - (setq macro-fence - (save-excursion - (if macro-fence - (progn - (end-of-line) - (and (not (eobp)) - (progn (c-skip-ws-forward) - (c-beginning-of-macro)) - (progn (c-end-of-macro) - (point)))) - (and (not (eobp)) - (c-beginning-of-macro) - (progn (c-end-of-macro) (point))))))) - ;; Are we about to move forward into a literal? - (when (memq (cdr res) '(macro-boundary literal)) - (setq range (c-ascertain-following-literal))) - (car res)))) - - (if (/= count 0) (setq count (1- count)))) - (c-keep-region-active)))) + (if (/= count 0) (setq count (1- count)))) + (c-keep-region-active))))) ;; set up electric character functions to work with pending-del, @@ -3539,122 +3562,125 @@ prefix argument is equivalent to -1. depending on the variable `indent-tabs-mode'." (interactive "P") - (let ((indent-function - (if c-syntactic-indentation - (symbol-function 'indent-according-to-mode) - (lambda () - (let ((c-macro-start c-macro-start) - (steps (if (equal arg '(4)) - -1 - (prefix-numeric-value arg)))) - (c-shift-line-indentation (* steps c-basic-offset)) - (when (and c-auto-align-backslashes - (save-excursion - (end-of-line) - (eq (char-before) ?\\)) - (c-query-and-set-macro-start)) - ;; Realign the line continuation backslash if inside a macro. - (c-backslash-region (point) (point) nil t))) - )))) - (if (and c-syntactic-indentation arg) - ;; If c-syntactic-indentation and got arg, always indent this - ;; line as C and shift remaining lines of expression the same - ;; amount. - (let ((shift-amt (save-excursion - (back-to-indentation) - (current-column))) - beg end) - (c-indent-line) - (setq shift-amt (- (save-excursion - (back-to-indentation) - (current-column)) - shift-amt)) - (save-excursion - (if (eq c-tab-always-indent t) - (beginning-of-line)) ; FIXME!!! What is this here for? ACM 2005/10/31 - (setq beg (point)) - (c-forward-sexp 1) - (setq end (point)) - (goto-char beg) - (forward-line 1) - (setq beg (point))) - (if (> end beg) - (indent-code-rigidly beg end shift-amt "#"))) - ;; Else use c-tab-always-indent to determine behavior. - (cond - ;; CASE 1: indent when at column zero or in line's indentation, - ;; otherwise insert a tab - ((not c-tab-always-indent) - (if (save-excursion - (skip-chars-backward " \t") - (not (bolp))) - (funcall c-insert-tab-function) - (funcall indent-function))) - ;; CASE 2: just indent the line - ((eq c-tab-always-indent t) - (funcall indent-function)) - ;; CASE 3: if in a literal, insert a tab, but always indent the - ;; line - (t - (if (c-save-buffer-state () (c-in-literal)) - (funcall c-insert-tab-function)) - (funcall indent-function) - ))))) + (c-with-string-fences + (let ((indent-function + (if c-syntactic-indentation + (symbol-function 'indent-according-to-mode) + (lambda () + (let ((c-macro-start c-macro-start) + (steps (if (equal arg '(4)) + -1 + (prefix-numeric-value arg)))) + (c-shift-line-indentation (* steps c-basic-offset)) + (when (and c-auto-align-backslashes + (save-excursion + (end-of-line) + (eq (char-before) ?\\)) + (c-query-and-set-macro-start)) + ;; Realign the line continuation backslash if inside a macro. + (c-backslash-region (point) (point) nil t))) + )))) + (if (and c-syntactic-indentation arg) + ;; If c-syntactic-indentation and got arg, always indent this + ;; line as C and shift remaining lines of expression the same + ;; amount. + (let ((shift-amt (save-excursion + (back-to-indentation) + (current-column))) + beg end) + (c-indent-line) + (setq shift-amt (- (save-excursion + (back-to-indentation) + (current-column)) + shift-amt)) + (save-excursion + (if (eq c-tab-always-indent t) + (beginning-of-line)) ; FIXME!!! What is this here for? ACM 2005/10/31 + (setq beg (point)) + (c-forward-sexp 1) + (setq end (point)) + (goto-char beg) + (forward-line 1) + (setq beg (point))) + (if (> end beg) + (indent-code-rigidly beg end shift-amt "#"))) + ;; Else use c-tab-always-indent to determine behavior. + (cond + ;; CASE 1: indent when at column zero or in line's indentation, + ;; otherwise insert a tab + ((not c-tab-always-indent) + (if (save-excursion + (skip-chars-backward " \t") + (not (bolp))) + (funcall c-insert-tab-function) + (funcall indent-function))) + ;; CASE 2: just indent the line + ((eq c-tab-always-indent t) + (funcall indent-function)) + ;; CASE 3: if in a literal, insert a tab, but always indent the + ;; line + (t + (if (c-save-buffer-state () (c-in-literal)) + (funcall c-insert-tab-function)) + (funcall indent-function) + )))))) (defun c-indent-exp (&optional shutup-p) "Indent each line in the balanced expression following point syntactically. If optional SHUTUP-P is non-nil, no errors are signaled if no balanced expression is found." (interactive "*P") - (let ((here (point-marker)) - end) - (set-marker-insertion-type here t) - (unwind-protect - (let ((start (save-restriction - ;; Find the closest following open paren that - ;; ends on another line. - (narrow-to-region (point-min) (c-point 'eol)) - (let (beg (end (point))) - (while (and (setq beg (c-down-list-forward end)) - (setq end (c-up-list-forward beg)))) - (and beg - (eq (char-syntax (char-before beg)) ?\() - (1- beg)))))) - ;; sanity check - (if (not start) - (unless shutup-p - (error "Cannot find start of balanced expression to indent")) - (goto-char start) - (setq end (c-safe (scan-sexps (point) 1))) - (if (not end) - (unless shutup-p - (error "Cannot find end of balanced expression to indent")) - (forward-line) - (if (< (point) end) - (c-indent-region (point) end))))) - (goto-char here) - (set-marker here nil)))) + (c-with-string-fences + (let ((here (point-marker)) + end) + (set-marker-insertion-type here t) + (unwind-protect + (let ((start (save-restriction + ;; Find the closest following open paren that + ;; ends on another line. + (narrow-to-region (point-min) (c-point 'eol)) + (let (beg (end (point))) + (while (and (setq beg (c-down-list-forward end)) + (setq end (c-up-list-forward beg)))) + (and beg + (eq (char-syntax (char-before beg)) ?\() + (1- beg)))))) + ;; sanity check + (if (not start) + (unless shutup-p + (error "Cannot find start of balanced expression to indent")) + (goto-char start) + (setq end (c-safe (scan-sexps (point) 1))) + (if (not end) + (unless shutup-p + (error "Cannot find end of balanced expression to indent")) + (forward-line) + (if (< (point) end) + (c-indent-region (point) end))))) + (goto-char here) + (set-marker here nil))))) (defun c-indent-defun () "Indent the current top-level declaration or macro syntactically. In the macro case this also has the effect of realigning any line continuation backslashes, unless `c-auto-align-backslashes' is nil." (interactive "*") - (let ((here (point-marker)) decl-limits case-fold-search) - (unwind-protect - (progn - (c-save-buffer-state nil - ;; We try to be line oriented, unless there are several - ;; declarations on the same line. - (if (looking-at c-syntactic-eol) - (c-backward-token-2 1 nil (c-point 'bol)) - (c-forward-token-2 0 nil (c-point 'eol))) - (setq decl-limits (c-declaration-limits nil))) - (if decl-limits - (c-indent-region (car decl-limits) - (cdr decl-limits)))) - (goto-char here) - (set-marker here nil)))) + (c-with-string-fences + (let ((here (point-marker)) decl-limits case-fold-search) + (unwind-protect + (progn + (c-save-buffer-state nil + ;; We try to be line oriented, unless there are several + ;; declarations on the same line. + (if (looking-at c-syntactic-eol) + (c-backward-token-2 1 nil (c-point 'bol)) + (c-forward-token-2 0 nil (c-point 'eol))) + (setq decl-limits (c-declaration-limits nil))) + (if decl-limits + (c-indent-region (car decl-limits) + (cdr decl-limits)))) + (goto-char here) + (set-marker here nil))))) (defun c-indent-region (start end &optional quiet) "Indent syntactically lines whose first char is between START and END inclusive. @@ -3734,9 +3760,10 @@ starting on the current line. Otherwise reindent just the current line." (interactive (list current-prefix-arg (c-region-is-active-p))) - (if region - (c-indent-region (region-beginning) (region-end)) - (c-indent-command arg))) + (c-with-string-fences + (if region + (c-indent-region (region-beginning) (region-end)) + (c-indent-command arg)))) ;; for progress reporting (defvar c-progress-info nil) @@ -4823,15 +4850,16 @@ If point is in any other situation, i.e. in normal code, do nothing. Optional prefix ARG means justify paragraph as well." (interactive "*P") - (let ((fill-paragraph-function - ;; Avoid infinite recursion. - (if (not (eq fill-paragraph-function 'c-fill-paragraph)) - fill-paragraph-function))) - (c-mask-paragraph t nil 'fill-paragraph arg)) - ;; Always return t. This has the effect that if filling isn't done - ;; above, it isn't done at all, and it's therefore effectively - ;; disabled in normal code. - t) + (c-with-string-fences + (let ((fill-paragraph-function + ;; Avoid infinite recursion. + (if (not (eq fill-paragraph-function 'c-fill-paragraph)) + fill-paragraph-function))) + (c-mask-paragraph t nil 'fill-paragraph arg)) + ;; Always return t. This has the effect that if filling isn't done + ;; above, it isn't done at all, and it's therefore effectively + ;; disabled in normal code. + t)) (defun c-do-auto-fill () ;; Do automatic filling if not inside a context where it should be @@ -4863,181 +4891,170 @@ If a fill prefix is specified, it overrides all the above." ;; used from auto-fill itself, that's normally disabled to avoid ;; unnecessary recursion. (interactive) - (let ((fill-prefix fill-prefix) - (do-line-break - (lambda () - (delete-horizontal-space) - (if soft - (insert-and-inherit ?\n) - (newline (if allow-auto-fill nil 1))))) - ;; Already know the literal type and limits when called from - ;; c-context-line-break. - (c-lit-limits c-lit-limits) - (c-lit-type c-lit-type) - (c-macro-start c-macro-start)) - - (c-save-buffer-state () - (when (not (eq c-auto-fill-prefix t)) - ;; Called from do-auto-fill. - (unless c-lit-limits - (setq c-lit-limits (c-literal-limits nil nil t))) - (unless c-lit-type - (setq c-lit-type (c-literal-type c-lit-limits))) - (if (memq (cond ((c-query-and-set-macro-start) 'cpp) - ((null c-lit-type) 'code) - (t c-lit-type)) - c-ignore-auto-fill) - (setq fill-prefix t) ; Used as flag in the cond. - (if (and (null c-auto-fill-prefix) - (eq c-lit-type 'c) - (<= (c-point 'bol) (car c-lit-limits))) - ;; The adaptive fill function has generated a prefix, but - ;; we're on the first line in a block comment so it'll be - ;; wrong. Ignore it to guess a better one below. - (setq fill-prefix nil) - (when (and (eq c-lit-type 'c++) - (not (string-match (concat "\\`[ \t]*" - c-line-comment-starter) - (or fill-prefix "")))) - ;; Kludge: If the function that adapted the fill prefix - ;; doesn't produce the required comment starter for line - ;; comments, then we ignore it. - (setq fill-prefix nil))) - ))) - - (cond ((eq fill-prefix t) - ;; A call from do-auto-fill which should be ignored. - ) - (fill-prefix - ;; A fill-prefix overrides anything. - (funcall do-line-break) - (insert-and-inherit fill-prefix)) - ((c-save-buffer-state () - (unless c-lit-limits - (setq c-lit-limits (c-literal-limits))) - (unless c-lit-type - (setq c-lit-type (c-literal-type c-lit-limits))) - (memq c-lit-type '(c c++))) - ;; Some sort of comment. - (if (or comment-multi-line - (save-excursion - (goto-char (car c-lit-limits)) - (end-of-line) - (< (point) (cdr c-lit-limits)))) - ;; Inside a comment that should be continued. - (let ((fill (c-save-buffer-state nil - (c-guess-fill-prefix - (setq c-lit-limits - (c-collect-line-comments c-lit-limits)) - c-lit-type))) - (pos (point)) - (comment-text-end - (or (and (eq c-lit-type 'c) - (save-excursion - (goto-char (- (cdr c-lit-limits) 2)) - (if (looking-at "\\*/") (point)))) - (cdr c-lit-limits)))) - ;; Skip forward past the fill prefix in case - ;; we're standing in it. - ;; - ;; FIXME: This doesn't work well in cases like - ;; - ;; /* Bla bla bla bla bla - ;; bla bla - ;; - ;; If point is on the 'B' then the line will be - ;; broken after "Bla b". - ;; - ;; If we have an empty comment, /* */, the next - ;; lot of code pushes point to the */. We fix - ;; this by never allowing point to end up to the - ;; right of where it started. - (while (and (< (current-column) (cdr fill)) - (not (eolp))) - (forward-char 1)) - (if (and (> (point) comment-text-end) - (> (c-point 'bol) (car c-lit-limits))) - (progn - ;; The skip takes us out of the (block) - ;; comment; insert the fill prefix at bol - ;; instead and keep the position. - (setq pos (copy-marker pos t)) - (beginning-of-line) - (insert-and-inherit (car fill)) - (if soft (insert-and-inherit ?\n) (newline 1)) - (goto-char pos) - (set-marker pos nil)) - ;; Don't break in the middle of a comment starter - ;; or ender. - (cond ((> (point) comment-text-end) - (goto-char comment-text-end)) - ((< (point) (+ (car c-lit-limits) 2)) - (goto-char (+ (car c-lit-limits) 2)))) - (funcall do-line-break) - (insert-and-inherit (car fill)) - (if (and (looking-at c-block-comment-ender-regexp) - (memq (char-before) '(?\ ?\t))) - (backward-char)))) ; can this hit the - ; middle of a TAB? - ;; Inside a comment that should be broken. - (let ((comment-start comment-start) - (comment-end comment-end) - col) - (if (eq c-lit-type 'c) - (unless (string-match "[ \t]*/\\*" comment-start) - (setq comment-start "/* " comment-end " */")) - (unless (string-match "[ \t]*//" comment-start) - (setq comment-start "// " comment-end ""))) - (setq col (save-excursion - (back-to-indentation) - (current-column))) - (funcall do-line-break) - (when (and comment-end (not (equal comment-end ""))) - (forward-char -1) - (insert-and-inherit comment-end) - (forward-char 1)) - ;; c-comment-indent may look at the current - ;; indentation, so let's start out with the same - ;; indentation as the previous one. - (indent-to col) - (insert-and-inherit comment-start) - (indent-for-comment)))) - ((c-query-and-set-macro-start) - ;; In a macro. - (unless (looking-at "[ \t]*\\\\$") - ;; Do not clobber the alignment of the line continuation - ;; slash; c-backslash-region might look at it. - (delete-horizontal-space)) - ;; Got an asymmetry here: In normal code this command - ;; doesn't indent the next line syntactically, and otoh a - ;; normal syntactically indenting newline doesn't continue - ;; the macro. - (c-newline-and-indent (if allow-auto-fill nil 1))) - (t - ;; Somewhere else in the code. - (let ((col (save-excursion + (c-with-string-fences + (let ((fill-prefix fill-prefix) + (do-line-break + (lambda () + (delete-horizontal-space) + (if soft + (insert-and-inherit ?\n) + (newline (if allow-auto-fill nil 1))))) + ;; Already know the literal type and limits when called from + ;; c-context-line-break. + (c-lit-limits c-lit-limits) + (c-lit-type c-lit-type) + (c-macro-start c-macro-start)) + + (c-save-buffer-state () + (when (not (eq c-auto-fill-prefix t)) + ;; Called from do-auto-fill. + (unless c-lit-limits + (setq c-lit-limits (c-literal-limits nil nil t))) + (unless c-lit-type + (setq c-lit-type (c-literal-type c-lit-limits))) + (if (memq (cond ((c-query-and-set-macro-start) 'cpp) + ((null c-lit-type) 'code) + (t c-lit-type)) + c-ignore-auto-fill) + (setq fill-prefix t) ; Used as flag in the cond. + (if (and (null c-auto-fill-prefix) + (eq c-lit-type 'c) + (<= (c-point 'bol) (car c-lit-limits))) + ;; The adaptive fill function has generated a prefix, but + ;; we're on the first line in a block comment so it'll be + ;; wrong. Ignore it to guess a better one below. + (setq fill-prefix nil) + (when (and (eq c-lit-type 'c++) + (not (string-match (concat "\\`[ \t]*" + c-line-comment-starter) + (or fill-prefix "")))) + ;; Kludge: If the function that adapted the fill prefix + ;; doesn't produce the required comment starter for line + ;; comments, then we ignore it. + (setq fill-prefix nil))) + ))) + + (cond ((eq fill-prefix t) + ;; A call from do-auto-fill which should be ignored. + ) + (fill-prefix + ;; A fill-prefix overrides anything. + (funcall do-line-break) + (insert-and-inherit fill-prefix)) + ((c-save-buffer-state () + (unless c-lit-limits + (setq c-lit-limits (c-literal-limits))) + (unless c-lit-type + (setq c-lit-type (c-literal-type c-lit-limits))) + (memq c-lit-type '(c c++))) + ;; Some sort of comment. + (if (or comment-multi-line + (save-excursion + (goto-char (car c-lit-limits)) + (end-of-line) + (< (point) (cdr c-lit-limits)))) + ;; Inside a comment that should be continued. + (let ((fill (c-save-buffer-state nil + (c-guess-fill-prefix + (setq c-lit-limits + (c-collect-line-comments c-lit-limits)) + c-lit-type))) + (pos (point)) + (comment-text-end + (or (and (eq c-lit-type 'c) + (save-excursion + (goto-char (- (cdr c-lit-limits) 2)) + (if (looking-at "\\*/") (point)))) + (cdr c-lit-limits)))) + ;; Skip forward past the fill prefix in case + ;; we're standing in it. + ;; + ;; FIXME: This doesn't work well in cases like + ;; + ;; /* Bla bla bla bla bla + ;; bla bla + ;; + ;; If point is on the 'B' then the line will be + ;; broken after "Bla b". + ;; + ;; If we have an empty comment, /* */, the next + ;; lot of code pushes point to the */. We fix + ;; this by never allowing point to end up to the + ;; right of where it started. + (while (and (< (current-column) (cdr fill)) + (not (eolp))) + (forward-char 1)) + (if (and (> (point) comment-text-end) + (> (c-point 'bol) (car c-lit-limits))) + (progn + ;; The skip takes us out of the (block) + ;; comment; insert the fill prefix at bol + ;; instead and keep the position. + (setq pos (copy-marker pos t)) (beginning-of-line) - (while (and (looking-at "[ \t]*\\\\?$") - (= (forward-line -1) 0))) - (current-indentation)))) - (funcall do-line-break) - (indent-to col)))))) + (insert-and-inherit (car fill)) + (if soft (insert-and-inherit ?\n) (newline 1)) + (goto-char pos) + (set-marker pos nil)) + ;; Don't break in the middle of a comment starter + ;; or ender. + (cond ((> (point) comment-text-end) + (goto-char comment-text-end)) + ((< (point) (+ (car c-lit-limits) 2)) + (goto-char (+ (car c-lit-limits) 2)))) + (funcall do-line-break) + (insert-and-inherit (car fill)) + (if (and (looking-at c-block-comment-ender-regexp) + (memq (char-before) '(?\ ?\t))) + (backward-char)))) ; can this hit the + ; middle of a TAB? + ;; Inside a comment that should be broken. + (let ((comment-start comment-start) + (comment-end comment-end) + col) + (if (eq c-lit-type 'c) + (unless (string-match "[ \t]*/\\*" comment-start) + (setq comment-start "/* " comment-end " */")) + (unless (string-match "[ \t]*//" comment-start) + (setq comment-start "// " comment-end ""))) + (setq col (save-excursion + (back-to-indentation) + (current-column))) + (funcall do-line-break) + (when (and comment-end (not (equal comment-end ""))) + (forward-char -1) + (insert-and-inherit comment-end) + (forward-char 1)) + ;; c-comment-indent may look at the current + ;; indentation, so let's start out with the same + ;; indentation as the previous one. + (indent-to col) + (insert-and-inherit comment-start) + (indent-for-comment)))) + ((c-query-and-set-macro-start) + ;; In a macro. + (unless (looking-at "[ \t]*\\\\$") + ;; Do not clobber the alignment of the line continuation + ;; slash; c-backslash-region might look at it. + (delete-horizontal-space)) + ;; Got an asymmetry here: In normal code this command + ;; doesn't indent the next line syntactically, and otoh a + ;; normal syntactically indenting newline doesn't continue + ;; the macro. + (c-newline-and-indent (if allow-auto-fill nil 1))) + (t + ;; Somewhere else in the code. + (let ((col (save-excursion + (beginning-of-line) + (while (and (looking-at "[ \t]*\\\\?$") + (= (forward-line -1) 0))) + (current-indentation)))) + (funcall do-line-break) + (indent-to col))))))) (defalias 'c-comment-line-break-function 'c-indent-new-comment-line) (make-obsolete 'c-comment-line-break-function 'c-indent-new-comment-line "21.1") -;; Advice for Emacsen older than 21.1 (!), released 2001/10 -(unless (boundp 'comment-line-break-function) - (defvar c-inside-line-break-advice nil) - (defadvice indent-new-comment-line (around c-line-break-advice - activate preactivate) - "Call `c-indent-new-comment-line' if in CC Mode." - (if (or c-inside-line-break-advice - (not c-buffer-is-cc-mode)) - ad-do-it - (let ((c-inside-line-break-advice t)) - (c-indent-new-comment-line (ad-get-arg 0)))))) - (defun c-context-line-break () "Do a line break suitable to the context. @@ -5060,58 +5077,59 @@ When point is inside a string, only insert a backslash when it is also inside a preprocessor directive." (interactive "*") - (let* (c-lit-limits c-lit-type - (c-macro-start c-macro-start) - case-fold-search) - - (c-save-buffer-state () - (setq c-lit-limits (c-literal-limits nil nil t) - c-lit-type (c-literal-type c-lit-limits)) - (when (eq c-lit-type 'c++) - (setq c-lit-limits (c-collect-line-comments c-lit-limits))) - (c-query-and-set-macro-start)) - - (cond - ((or (eq c-lit-type 'c) - (and (eq c-lit-type 'c++) ; C++ comment, but not at the very end of it. - (< (save-excursion - (skip-chars-forward " \t") - (point)) - (1- (cdr c-lit-limits)))) - (and (numberp c-macro-start) ; Macro, but not at the very end of + (c-with-string-fences + (let* (c-lit-limits c-lit-type + (c-macro-start c-macro-start) + case-fold-search) + + (c-save-buffer-state () + (setq c-lit-limits (c-literal-limits nil nil t) + c-lit-type (c-literal-type c-lit-limits)) + (when (eq c-lit-type 'c++) + (setq c-lit-limits (c-collect-line-comments c-lit-limits))) + (c-query-and-set-macro-start)) + + (cond + ((or (eq c-lit-type 'c) + (and (eq c-lit-type 'c++) ; C++ comment, but not at the very end of it. + (< (save-excursion + (skip-chars-forward " \t") + (point)) + (1- (cdr c-lit-limits)))) + (and (numberp c-macro-start) ; Macro, but not at the very end of ; it, not in a string, and not in the ; cpp keyword. - (not (eq c-lit-type 'string)) - (or (not (looking-at "\\s *$")) - (eq (char-before) ?\\)) - (<= (save-excursion - (goto-char c-macro-start) - (if (looking-at c-opt-cpp-start) - (goto-char (match-end 0))) - (point)) - (point)))) - (let ((comment-multi-line t) - (fill-prefix nil)) - (c-indent-new-comment-line nil t))) - - ((eq c-lit-type 'string) - (if (and (numberp c-macro-start) - (not (eq (char-before) ?\\))) - (insert ?\\)) - (newline)) - - (t (delete-horizontal-space) - (newline) - ;; c-indent-line may look at the current indentation, so let's - ;; start out with the same indentation as the previous line. - (let ((col (save-excursion - (backward-char) - (forward-line 0) - (while (and (looking-at "[ \t]*\\\\?$") - (= (forward-line -1) 0))) - (current-indentation)))) - (indent-to col)) - (indent-according-to-mode))))) + (not (eq c-lit-type 'string)) + (or (not (looking-at "\\s *$")) + (eq (char-before) ?\\)) + (<= (save-excursion + (goto-char c-macro-start) + (if (looking-at c-opt-cpp-start) + (goto-char (match-end 0))) + (point)) + (point)))) + (let ((comment-multi-line t) + (fill-prefix nil)) + (c-indent-new-comment-line nil t))) + + ((eq c-lit-type 'string) + (if (and (numberp c-macro-start) + (not (eq (char-before) ?\\))) + (insert ?\\)) + (newline)) + + (t (delete-horizontal-space) + (newline) + ;; c-indent-line may look at the current indentation, so let's + ;; start out with the same indentation as the previous line. + (let ((col (save-excursion + (backward-char) + (forward-line 0) + (while (and (looking-at "[ \t]*\\\\?$") + (= (forward-line -1) 0))) + (current-indentation)))) + (indent-to col)) + (indent-according-to-mode)))))) (defun c-context-open-line () "Insert a line break suitable to the context and leave point before it. |