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[Emacs-diffs] Changes to emacs/lisp/progmodes/cc-align.el


From: Alan Mackenzie
Subject: [Emacs-diffs] Changes to emacs/lisp/progmodes/cc-align.el
Date: Fri, 02 Dec 2005 07:30:36 -0500

Index: emacs/lisp/progmodes/cc-align.el
diff -c emacs/lisp/progmodes/cc-align.el:1.27 
emacs/lisp/progmodes/cc-align.el:1.28
*** emacs/lisp/progmodes/cc-align.el:1.27       Mon Aug  1 08:37:49 2005
--- emacs/lisp/progmodes/cc-align.el    Fri Dec  2 12:30:35 2005
***************
*** 45,63 ****
  (cc-require 'cc-engine)
  
  
! ;; Standard indentation line-ups
! 
! ;; Calling convention:
! ;;
! ;; The single argument is a cons cell containing the syntactic symbol
! ;; in the car, and the relpos (a.k.a. anchor position) in the cdr.
! ;; The cdr may be nil for syntactic symbols which doesn't have an
! ;; associated relpos.
  ;;
! ;; Some syntactic symbols provide more information, usually more
! ;; interesting positions.  The complete list for the syntactic element
! ;; (beginning with the symbol itself) is available in
! ;; `c-syntactic-element'.
  
  (defun c-lineup-topmost-intro-cont (langelem)
    "Line up declaration continuation lines zero or one indentation step.
--- 45,54 ----
  (cc-require 'cc-engine)
  
  
! ;; Standard line-up functions
  ;;
! ;; See the section "Custom Indentation Functions" in the manual for
! ;; details on the calling convention.
  
  (defun c-lineup-topmost-intro-cont (langelem)
    "Line up declaration continuation lines zero or one indentation step.
***************
*** 91,107 ****
  Works with: topmost-intro-cont."
    (save-excursion
      (beginning-of-line)
!     (c-backward-syntactic-ws (cdr langelem))
!     (if (memq (char-before) '(?} ?,))
        c-basic-offset)))
  
  (defun c-lineup-arglist (langelem)
    "Line up the current argument line under the first argument.
  
! As a special case, if an argument on the same line as the open
! parenthesis starts with a brace block opener, the indentation is
! `c-basic-offset' only.  This is intended as a \"DWIM\" measure in
! cases like macros that contains statement blocks, e.g:
  
  A_VERY_LONG_MACRO_NAME ({
          some (code, with + long, lines * in[it]);
--- 82,148 ----
  Works with: topmost-intro-cont."
    (save-excursion
      (beginning-of-line)
!     (c-backward-syntactic-ws (c-langelem-pos langelem))
!     (if (and (memq (char-before) '(?} ?,))
!            (not (and c-overloadable-operators-regexp
!                      (c-after-special-operator-id))))
        c-basic-offset)))
  
+ (defun c-block-in-arglist-dwim (arglist-start)
+   ;; This function implements the DWIM to avoid far indentation of
+   ;; brace block constructs in arguments in `c-lineup-arglist' etc.
+   ;; Return non-nil if a brace block construct is detected within the
+   ;; arglist starting at ARGLIST-START.
+ 
+   (or
+    ;; Check if the syntactic context contains any of the symbols for
+    ;; in-expression constructs.  This can both save the work that we
+    ;; have to do below, and it also detect the brace list constructs
+    ;; that `c-looking-at-inexpr-block' currently misses (they are
+    ;; recognized by `c-inside-bracelist-p' instead).
+    (assq 'inexpr-class c-syntactic-context)
+    (assq 'inexpr-statement c-syntactic-context)
+    (assq 'inlambda c-syntactic-context)
+ 
+    (save-restriction
+      ;; Search for open braces from the arglist start to the end of the
+      ;; line.
+      (narrow-to-region arglist-start (c-point 'eol arglist-start))
+ 
+      (goto-char arglist-start)
+      (while (and (c-syntactic-re-search-forward "{" nil t)
+                (progn
+                  (backward-char)
+                  (or
+                   ;; Ignore starts of special brace lists.
+                   (and c-special-brace-lists
+                        (save-restriction
+                          (widen)
+                          (c-looking-at-special-brace-list)))
+                   ;; Ignore complete blocks.
+                   (c-safe (c-forward-sexp) t))))
+        (forward-char))
+ 
+      (looking-at "{"))
+ 
+    (let (containing-sexp)
+      (goto-char arglist-start)
+      ;; `c-syntactic-eol' always matches somewhere on the line.
+      (re-search-forward c-syntactic-eol)
+      (goto-char (match-beginning 0))
+      (c-forward-syntactic-ws)
+      (setq containing-sexp (c-most-enclosing-brace (c-parse-state)))
+      (c-looking-at-inexpr-block
+       (c-safe-position (or containing-sexp (point)) c-state-cache)
+       containing-sexp))))
+ 
  (defun c-lineup-arglist (langelem)
    "Line up the current argument line under the first argument.
  
! As a special case, if the indented line is inside a brace block
! construct, the indentation is `c-basic-offset' only.  This is intended
! as a \"DWIM\" measure in cases like macros that contains statement
! blocks, e.g:
  
  A_VERY_LONG_MACRO_NAME ({
          some (code, with + long, lines * in[it]);
***************
*** 115,152 ****
  
  Works with: arglist-cont-nonempty, arglist-close."
    (save-excursion
!     (goto-char (1+ (elt c-syntactic-element 2)))
  
!     ;; Don't stop in the middle of a special brace list opener
!     ;; like "({".
!     (when c-special-brace-lists
!       (let ((special-list (c-looking-at-special-brace-list)))
!       (when (and special-list (< (car (car special-list)) (point)))
!         (goto-char (+ (car (car special-list)) 2)))))
! 
!     (let ((savepos (point))
!         (eol (c-point 'eol)))
! 
!       ;; Find out if an argument on the same line starts with an
!       ;; unclosed open brace paren.  Note similar code in
!       ;; `c-lineup-close-paren' and
!       ;; `c-lineup-arglist-close-under-paren'.
!       (if (and (c-syntactic-re-search-forward "{" eol t t)
!              (looking-at c-syntactic-eol)
!              (progn (backward-char)
!                     (not (c-looking-at-special-brace-list)))
!              (progn (c-backward-syntactic-ws)
!                     (or (= (point) savepos)
!                         (eq (char-before) ?,))))
!         c-basic-offset
  
        ;; Normal case.  Indent to the token after the arglist open paren.
!       (goto-char savepos)
!       (c-forward-syntactic-ws)
!       (when (< (point) eol)
!         (goto-char savepos)
!         (skip-chars-forward " \t"))
!       (vector (current-column))))))
  
  ;; Contributed by Kevin Ryde <address@hidden>.
  (defun c-lineup-argcont (elem)
--- 156,180 ----
  
  Works with: arglist-cont-nonempty, arglist-close."
    (save-excursion
!     (let ((indent-pos (point)))
  
!       (if (c-block-in-arglist-dwim (c-langelem-2nd-pos c-syntactic-element))
!         c-basic-offset                ; DWIM case.
  
        ;; Normal case.  Indent to the token after the arglist open paren.
!       (goto-char (c-langelem-2nd-pos c-syntactic-element))
!       (if (and c-special-brace-lists
!                (c-looking-at-special-brace-list))
!           ;; Skip a special brace list opener like "({".
!           (progn (c-forward-token-2)
!                  (forward-char))
!         (forward-char))
!       (let ((arglist-content-start (point)))
!         (c-forward-syntactic-ws)
!         (when (< (point) indent-pos)
!           (goto-char arglist-content-start)
!           (skip-chars-forward " \t"))
!         (vector (current-column)))))))
  
  ;; Contributed by Kevin Ryde <address@hidden>.
  (defun c-lineup-argcont (elem)
***************
*** 172,178 ****
        ;; isn't, go back to the last position in it.  We do this by
        ;; stepping back over open parens until we get to the open paren
        ;; of our argument list.
!       (let ((open-paren (elt c-syntactic-element 2))
            (paren-state (c-parse-state)))
        (while (not (eq (car paren-state) open-paren))
          (unless (consp (car paren-state)) ;; ignore matched braces
--- 200,206 ----
        ;; isn't, go back to the last position in it.  We do this by
        ;; stepping back over open parens until we get to the open paren
        ;; of our argument list.
!       (let ((open-paren (c-langelem-2nd-pos c-syntactic-element))
            (paren-state (c-parse-state)))
        (while (not (eq (car paren-state) open-paren))
          (unless (consp (car paren-state)) ;; ignore matched braces
***************
*** 233,283 ****
  arglist-cont-nonempty to line up all lines inside a parenthesis under
  the open paren.
  
! As a special case, if a brace block is opened at the same line as the
! open parenthesis of the argument list, the indentation is
  `c-basic-offset' only.  See `c-lineup-arglist' for further discussion
  of this \"DWIM\" measure.
  
  Works with: Almost all symbols, but are typically most useful on
  arglist-close, brace-list-close, arglist-cont and arglist-cont-nonempty."
    (save-excursion
!     (let (special-list paren-start savepos)
!       (if (memq (car langelem) '(arglist-cont-nonempty arglist-close))
!         (goto-char (elt c-syntactic-element 2))
!       (beginning-of-line)
!       (c-go-up-list-backward))
  
!       (if (and c-special-brace-lists
!              (setq special-list (c-looking-at-special-brace-list)))
!         ;; Don't stop in the middle of a special brace list opener
!         ;; like "({".
!         (progn
!           (setq paren-start (car (car special-list)))
!           (goto-char (+ paren-start 2)))
!       (setq paren-start (point))
!       (forward-char 1))
! 
!       (setq savepos (point))
!       ;; Find out if an argument on the same line starts with an
!       ;; unclosed open brace paren.  Note similar code in
!       ;; `c-lineup-arglist' and `c-lineup-close-paren'.
!       (if (and (c-syntactic-re-search-forward "{" (c-point 'eol) t t)
!              (looking-at c-syntactic-eol)
!              (progn (backward-char)
!                     (not (c-looking-at-special-brace-list)))
!              (progn (c-backward-syntactic-ws)
!                     (or (= (point) savepos)
!                         (eq (char-before) ?,))))
!         c-basic-offset
  
!       ;; Normal case.  Indent to the arglist open paren.
!       (goto-char paren-start)
        (vector (current-column))))))
  
  (defun c-lineup-arglist-operators (langelem)
    "Line up lines starting with an infix operator under the open paren.
  Return nil on lines that don't start with an operator, to leave those
! cases to other lineup functions.  Example:
  
  if (  x < 10
     || at_limit (x,       <- c-lineup-arglist-operators
--- 261,296 ----
  arglist-cont-nonempty to line up all lines inside a parenthesis under
  the open paren.
  
! As a special case, if a brace block construct starts at the same line
! as the open parenthesis of the argument list, the indentation is
  `c-basic-offset' only.  See `c-lineup-arglist' for further discussion
  of this \"DWIM\" measure.
  
  Works with: Almost all symbols, but are typically most useful on
  arglist-close, brace-list-close, arglist-cont and arglist-cont-nonempty."
    (save-excursion
!     (if (memq (c-langelem-sym langelem)
!             '(arglist-cont-nonempty arglist-close))
!       (goto-char (c-langelem-2nd-pos c-syntactic-element))
!       (beginning-of-line)
!       (c-go-up-list-backward))
  
!     (if (save-excursion (c-block-in-arglist-dwim (point)))
!       c-basic-offset                  ; DWIM case.
  
!       ;; Normal case.  Indent to the arglist open paren.
!       (let (special-list)
!       (if (and c-special-brace-lists
!                (setq special-list (c-looking-at-special-brace-list)))
!           ;; Cope if we're in the middle of a special brace list
!           ;; opener like "({".
!           (goto-char (car (car special-list))))
        (vector (current-column))))))
  
  (defun c-lineup-arglist-operators (langelem)
    "Line up lines starting with an infix operator under the open paren.
  Return nil on lines that don't start with an operator, to leave those
! cases to other line-up functions.  Example:
  
  if (  x < 10
     || at_limit (x,       <- c-lineup-arglist-operators
***************
*** 285,291 ****
     )
  
  Since this function doesn't do anything for lines without an infix
! operator you typically want to use it together with some other lineup
  settings, e.g. as follows \(the arglist-close setting is just a
  suggestion to get a consistent style):
  
--- 298,304 ----
     )
  
  Since this function doesn't do anything for lines without an infix
! operator you typically want to use it together with some other line-up
  settings, e.g. as follows \(the arglist-close setting is just a
  suggestion to get a consistent style):
  
***************
*** 310,361 ****
        char **               int, char **
       )           <->    )                 <- c-lineup-close-paren
  
! As a special case, if a brace block is opened at the same line as the
! open parenthesis of the argument list, the indentation is
  `c-basic-offset' instead of the open paren column.  See
  `c-lineup-arglist' for further discussion of this \"DWIM\" measure.
  
  Works with: All *-close symbols."
    (save-excursion
!     (beginning-of-line)
!     (c-go-up-list-backward)
! 
!     (let ((spec (c-looking-at-special-brace-list)) savepos argstart)
!       (if spec (goto-char (car (car spec))))
!       (setq savepos (point))
!       (forward-char 1)
!       (when spec
!       (c-forward-syntactic-ws)
!       (forward-char 1))
! 
!       (if (looking-at c-syntactic-eol)
!         ;; The arglist is "empty".
!         0
! 
!       ;; Find out if an argument on the same line starts with an
!       ;; unclosed open brace paren.  Note similar code in
!       ;; `c-lineup-arglist' and
!       ;; `c-lineup-arglist-close-under-paren'.
!       (setq argstart (point))
!       (if (and (c-syntactic-re-search-forward "{" (c-point 'eol) t t)
!                (looking-at c-syntactic-eol)
!                (progn (backward-char)
!                       (not (c-looking-at-special-brace-list)))
!                (progn (c-backward-syntactic-ws)
!                       (or (= (point) argstart)
!                           (eq (char-before) ?,))))
!           c-basic-offset
  
!         ;; Normal case.  Indent to the arglist open paren.
!         (goto-char savepos)
!         (vector (current-column)))))))
  
  (defun c-lineup-streamop (langelem)
    "Line up C++ stream operators under each other.
  
  Works with: stream-op."
    (save-excursion
!     (goto-char (cdr langelem))
      (re-search-forward "<<\\|>>" (c-point 'eol) 'move)
      (goto-char (match-beginning 0))
      (vector (current-column))))
--- 323,370 ----
        char **               int, char **
       )           <->    )                 <- c-lineup-close-paren
  
! As a special case, if a brace block construct starts at the same line
! as the open parenthesis of the argument list, the indentation is
  `c-basic-offset' instead of the open paren column.  See
  `c-lineup-arglist' for further discussion of this \"DWIM\" measure.
  
  Works with: All *-close symbols."
    (save-excursion
!     (if (memq (c-langelem-sym langelem)
!             '(arglist-cont-nonempty arglist-close))
!       (goto-char (c-langelem-2nd-pos c-syntactic-element))
!       (beginning-of-line)
!       (c-go-up-list-backward))
  
!     (let (special-list arglist-start)
!       (if (and c-special-brace-lists
!              (setq special-list (c-looking-at-special-brace-list)))
!         ;; Cope if we're in the middle of a special brace list
!         ;; opener like "({".
!         (progn
!           (goto-char (setq arglist-start (car (car special-list))))
!           (c-forward-token-2)
!           (forward-char))
!       (setq arglist-start (point))
!       (forward-char))
! 
!       (cond ((looking-at c-syntactic-eol)
!            0)                         ; The arglist is "empty".
! 
!           ((c-block-in-arglist-dwim (point))
!            c-basic-offset)            ; DWIM case.
! 
!           (t
!            ;; Normal case.  Indent to the arglist open paren.
!            (goto-char arglist-start)
!            (vector (current-column)))))))
  
  (defun c-lineup-streamop (langelem)
    "Line up C++ stream operators under each other.
  
  Works with: stream-op."
    (save-excursion
!     (goto-char (c-langelem-pos langelem))
      (re-search-forward "<<\\|>>" (c-point 'eol) 'move)
      (goto-char (match-beginning 0))
      (vector (current-column))))
***************
*** 382,388 ****
      (let* ((eol (c-point 'eol))
           (here (point))
           (char-after-ip (char-after)))
!       (if (cdr langelem) (goto-char (cdr langelem)))
  
        ;; This kludge is necessary to support both inher-cont and
        ;; member-init-cont, since they have different anchor positions.
--- 391,398 ----
      (let* ((eol (c-point 'eol))
           (here (point))
           (char-after-ip (char-after)))
!       (if (c-langelem-pos langelem)
!         (goto-char (c-langelem-pos langelem)))
  
        ;; This kludge is necessary to support both inher-cont and
        ;; member-init-cont, since they have different anchor positions.
***************
*** 415,421 ****
  
  Works with: inher-cont."
    (save-excursion
!     (goto-char (cdr langelem))
      (forward-word 1)
      (if (looking-at "[ \t]*$")
        c-basic-offset
--- 425,431 ----
  
  Works with: inher-cont."
    (save-excursion
!     (goto-char (c-langelem-pos langelem))
      (forward-word 1)
      (if (looking-at "[ \t]*$")
        c-basic-offset
***************
*** 439,445 ****
    (save-excursion
      (let* ((lim (1- (c-point 'bol)))
           (throws (catch 'done
!                    (goto-char (cdr langelem))
                     (while (zerop (c-forward-token-2 1 t lim))
                       (if (looking-at "throws\\>[^_]")
                           (throw 'done t))))))
--- 449,455 ----
    (save-excursion
      (let* ((lim (1- (c-point 'bol)))
           (throws (catch 'done
!                    (goto-char (c-langelem-pos langelem))
                     (while (zerop (c-forward-token-2 1 t lim))
                       (if (looking-at "throws\\>[^_]")
                           (throw 'done t))))))
***************
*** 537,549 ****
            ;; matches comment-start-skip, and choose whichever is
            ;; longest.
            (max (save-excursion
!                  (goto-char (1+ (cdr langelem)))
                   (if (and (match-string 0)
                            (looking-at (regexp-quote (match-string 0))))
                       (- (match-end 0) (match-beginning 0))
                     0))
                 (save-excursion
!                  (goto-char (cdr langelem))
                   (looking-at comment-start-skip)
                   (- (or (match-end 1)
                          (save-excursion
--- 547,559 ----
            ;; matches comment-start-skip, and choose whichever is
            ;; longest.
            (max (save-excursion
!                  (goto-char (1+ (c-langelem-pos langelem)))
                   (if (and (match-string 0)
                            (looking-at (regexp-quote (match-string 0))))
                       (- (match-end 0) (match-beginning 0))
                     0))
                 (save-excursion
!                  (goto-char (c-langelem-pos langelem))
                   (looking-at comment-start-skip)
                   (- (or (match-end 1)
                          (save-excursion
***************
*** 557,570 ****
          ;; a nonempty comment prefix.  Treat it as free form text
          ;; and don't change the indentation.
          (vector (current-column))
!       (forward-line -1)
!       (back-to-indentation)
!       (if (>= (cdr langelem) (point))
!           ;; On the second line in the comment.
            (if (zerop prefixlen)
                ;; No nonempty comment prefix. Align after comment
                ;; starter.
                (progn
                  (goto-char (match-end 0))
                  ;; The following should not be necessary, since
                  ;; comment-start-skip should match everything (i.e.
--- 567,586 ----
          ;; a nonempty comment prefix.  Treat it as free form text
          ;; and don't change the indentation.
          (vector (current-column))
!       ;; Go back to the previous non-blank line, if any.
!       (while
!           (progn
!             (forward-line -1)
!             (back-to-indentation)
!             (and (> (point) (c-langelem-pos langelem))
!                  (looking-at "[ \t]*$"))))
!       ;; Is the starting line the first continuation line with content?
!       (if (>= (c-langelem-pos langelem) (point))
            (if (zerop prefixlen)
                ;; No nonempty comment prefix. Align after comment
                ;; starter.
                (progn
+                 (looking-at comment-start-skip)
                  (goto-char (match-end 0))
                  ;; The following should not be necessary, since
                  ;; comment-start-skip should match everything (i.e.
***************
*** 580,606 ****
              ;; Javadoc style comments.
              (if (> starterlen prefixlen)
                  (progn
!                   (goto-char (cdr langelem))
                    (vector (1+ (current-column))))
!               (goto-char (+ (cdr langelem) starterlen 1))
                (vector (- (current-column) prefixlen))))
!         ;; Not on the second line in the comment.  If the previous
!         ;; line has a nonempty comment prefix, align with it.
!         ;; Otherwise, align with the previous nonempty line, but
!         ;; align the comment ender with the starter.
          (when (or (not (looking-at c-current-comment-prefix))
                    (eq (match-beginning 0) (match-end 0)))
            (goto-char here)
            (back-to-indentation)
            (if (looking-at (concat "\\(" c-current-comment-prefix "\\)\\*/"))
!               (goto-char (cdr langelem))
              (while (and (zerop (forward-line -1))
                          (looking-at "^[ \t]*$")))
              (back-to-indentation)
!             (if (< (point) (cdr langelem))
                  ;; Align with the comment starter rather than
                  ;; with the code before it.
!                 (goto-char (cdr langelem)))))
          (vector (current-column)))))))
  
  (defun c-lineup-comment (langelem)
--- 596,622 ----
              ;; Javadoc style comments.
              (if (> starterlen prefixlen)
                  (progn
!                   (goto-char (c-langelem-pos langelem))
                    (vector (1+ (current-column))))
!               (goto-char (+ (c-langelem-pos langelem) starterlen 1))
                (vector (- (current-column) prefixlen))))
!         ;; We didn't start on the first non-blank continuation line.  If the
!         ;; previous line has a nonempty comment prefix, align with it.
!         ;; Otherwise, align with the previous nonempty line, but align the
!         ;; comment ender with the starter.
          (when (or (not (looking-at c-current-comment-prefix))
                    (eq (match-beginning 0) (match-end 0)))
            (goto-char here)
            (back-to-indentation)
            (if (looking-at (concat "\\(" c-current-comment-prefix "\\)\\*/"))
!               (goto-char (c-langelem-pos langelem))
              (while (and (zerop (forward-line -1))
                          (looking-at "^[ \t]*$")))
              (back-to-indentation)
!             (if (< (point) (c-langelem-pos langelem))
                  ;; Align with the comment starter rather than
                  ;; with the code before it.
!                 (goto-char (c-langelem-pos langelem)))))
          (vector (current-column)))))))
  
  (defun c-lineup-comment (langelem)
***************
*** 665,702 ****
  returned.  This makes the function usable in list expressions.
  
  Works with: The `statement' syntactic symbol."
!   (if (eq (char-after (cdr langelem)) ?{)
        (save-excursion
!       (if (cdr langelem) (goto-char (cdr langelem)))
        (forward-char 1)
        (skip-chars-forward " \t")
        (unless (eolp)
          (vector (current-column))))))
  
! (defun c-lineup-math (langelem)
!   "Line up the current line after the equal sign on the first line in
! the statement.  If there isn't any, indent with `c-basic-offset'.  If
! the current line contains an equal sign too, try to align it with the
! first one.
  
  Works with: topmost-intro-cont, statement-cont, arglist-cont,
  arglist-cont-nonempty."
    (let (startpos endpos equalp)
  
!     (if (eq (car langelem) 'arglist-cont-nonempty)
        ;; If it's an arglist-cont-nonempty then we're only interested
        ;; in equal signs outside it.  We don't search for a "=" on
        ;; the current line since that'd have a different nesting
        ;; compared to the one we should align with.
        (save-excursion
          (save-restriction
!           (setq endpos (nth 2 c-syntactic-element))
!           (narrow-to-region (cdr langelem) endpos)
            (if (setq startpos (c-up-list-backward endpos))
                (setq startpos (1+ startpos))
!             (setq startpos (cdr langelem)))))
  
!       (setq startpos (cdr langelem)
            endpos (point))
  
        ;; Find a syntactically relevant and unnested "=" token on the
--- 681,719 ----
  returned.  This makes the function usable in list expressions.
  
  Works with: The `statement' syntactic symbol."
!   (if (eq (char-after (c-langelem-pos langelem)) ?{)
        (save-excursion
!       (if (c-langelem-pos langelem)
!           (goto-char (c-langelem-pos langelem)))
        (forward-char 1)
        (skip-chars-forward " \t")
        (unless (eolp)
          (vector (current-column))))))
  
! (defun c-lineup-assignments (langelem)
!   "Line up the current line after the assignment operator on the first
! line in the statement.  If there isn't any, return nil to allow
! stacking with other line-up functions.  If the current line contains
! an assignment operator too, try to align it with the first one.
  
  Works with: topmost-intro-cont, statement-cont, arglist-cont,
  arglist-cont-nonempty."
    (let (startpos endpos equalp)
  
!     (if (eq (c-langelem-sym langelem) 'arglist-cont-nonempty)
        ;; If it's an arglist-cont-nonempty then we're only interested
        ;; in equal signs outside it.  We don't search for a "=" on
        ;; the current line since that'd have a different nesting
        ;; compared to the one we should align with.
        (save-excursion
          (save-restriction
!           (setq endpos (c-langelem-2nd-pos c-syntactic-element))
!           (narrow-to-region (c-langelem-pos langelem) endpos)
            (if (setq startpos (c-up-list-backward endpos))
                (setq startpos (1+ startpos))
!             (setq startpos (c-langelem-pos langelem)))))
  
!       (setq startpos (c-langelem-pos langelem)
            endpos (point))
  
        ;; Find a syntactically relevant and unnested "=" token on the
***************
*** 727,733 ****
                (eolp)))
          ;; There's no equal sign on the line, or there is one but
          ;; nothing follows it.
!         c-basic-offset
  
        ;; calculate indentation column after equals and ws, unless
        ;; our line contains an equals sign
--- 744,750 ----
                (eolp)))
          ;; There's no equal sign on the line, or there is one but
          ;; nothing follows it.
!         nil
  
        ;; calculate indentation column after equals and ws, unless
        ;; our line contains an equals sign
***************
*** 739,744 ****
--- 756,772 ----
        (vector (- (current-column) equalp)))
        )))
  
+ (defun c-lineup-math (langelem)
+   "Like `c-lineup-assignments' but indent with `c-basic-offset' if no
+ assignment operator was found on the first line.  I.e. this function
+ is the same as specifying a list (c-lineup-assignments +).  It's
+ provided for compatibility with old configurations.
+ 
+ Works with: topmost-intro-cont, statement-cont, arglist-cont,
+ arglist-cont-nonempty."
+   (or (c-lineup-assignments langelem)
+       c-basic-offset))
+ 
  (defun c-lineup-cascaded-calls (langelem)
    "Line up \"cascaded calls\" under each other.
  If the line begins with \"->\" or \".\" and the preceding line ends
***************
*** 755,762 ****
  Works with: topmost-intro-cont, statement-cont, arglist-cont,
  arglist-cont-nonempty."
  
!   (if (and (eq (car langelem) 'arglist-cont-nonempty)
!          (not (eq (nth 2 c-syntactic-element)
                    (c-most-enclosing-brace (c-parse-state)))))
        ;; The innermost open paren is not our one, so don't do
        ;; anything.  This can occur for arglist-cont-nonempty with
--- 783,790 ----
  Works with: topmost-intro-cont, statement-cont, arglist-cont,
  arglist-cont-nonempty."
  
!   (if (and (eq (c-langelem-sym langelem) 'arglist-cont-nonempty)
!          (not (eq (c-langelem-2nd-pos c-syntactic-element)
                    (c-most-enclosing-brace (c-parse-state)))))
        ;; The innermost open paren is not our one, so don't do
        ;; anything.  This can occur for arglist-cont-nonempty with
***************
*** 767,773 ****
        (back-to-indentation)
        (let ((operator (and (looking-at "->\\|\\.")
                           (regexp-quote (match-string 0))))
!           (stmt-start (cdr langelem)) col)
  
        (when (and operator
                   (looking-at operator)
--- 795,801 ----
        (back-to-indentation)
        (let ((operator (and (looking-at "->\\|\\.")
                           (regexp-quote (match-string 0))))
!           (stmt-start (c-langelem-pos langelem)) col)
  
        (when (and operator
                   (looking-at operator)
***************
*** 794,800 ****
                    \"string.\";      <- c-lineup-string-cont
  
  Nil is returned in other situations, to allow stacking with other
! lineup functions.
  
  Works with: topmost-intro-cont, statement-cont, arglist-cont,
  arglist-cont-nonempty."
--- 822,828 ----
                    \"string.\";      <- c-lineup-string-cont
  
  Nil is returned in other situations, to allow stacking with other
! line-up functions.
  
  Works with: topmost-intro-cont, statement-cont, arglist-cont,
  arglist-cont-nonempty."
***************
*** 829,846 ****
  Go to the position right after the message receiver, and if you are at
  the end of the line, indent the current line c-basic-offset columns
  from the opening bracket; otherwise you are looking at the first
! character of the first method call argument, so lineup the current
  line with it.
  
  Works with: objc-method-call-cont."
    (save-excursion
      (let* ((extra (save-excursion
                    (back-to-indentation)
!                   (c-backward-syntactic-ws (cdr langelem))
                    (if (eq (char-before) ?:)
                        (- c-basic-offset)
                      0)))
!          (open-bracket-pos (cdr langelem))
             (open-bracket-col (progn
                               (goto-char open-bracket-pos)
                               (current-column)))
--- 857,874 ----
  Go to the position right after the message receiver, and if you are at
  the end of the line, indent the current line c-basic-offset columns
  from the opening bracket; otherwise you are looking at the first
! character of the first method call argument, so line up the current
  line with it.
  
  Works with: objc-method-call-cont."
    (save-excursion
      (let* ((extra (save-excursion
                    (back-to-indentation)
!                   (c-backward-syntactic-ws (c-langelem-pos langelem))
                    (if (eq (char-before) ?:)
                        (- c-basic-offset)
                      0)))
!          (open-bracket-pos (c-langelem-pos langelem))
             (open-bracket-col (progn
                               (goto-char open-bracket-pos)
                               (current-column)))
***************
*** 864,870 ****
      (let* ((here (c-point 'boi))
           (curcol (progn (goto-char here) (current-column)))
           (eol (c-point 'eol))
!          (relpos (cdr langelem))
           (first-col-column (progn
                               (goto-char relpos)
                               (skip-chars-forward "^:" eol)
--- 892,898 ----
      (let* ((here (c-point 'boi))
           (curcol (progn (goto-char here) (current-column)))
           (eol (c-point 'eol))
!          (relpos (c-langelem-pos langelem))
           (first-col-column (progn
                               (goto-char relpos)
                               (skip-chars-forward "^:" eol)
***************
*** 888,894 ****
      (let* ((here (c-point 'boi))
           (curcol (progn (goto-char here) (current-column)))
           (eol (c-point 'eol))
!          (relpos (cdr langelem))
           (prev-col-column (progn
                              (skip-chars-backward "^:" relpos)
                              (and (eq (char-before) ?:)
--- 916,922 ----
      (let* ((here (c-point 'boi))
           (curcol (progn (goto-char here) (current-column)))
           (eol (c-point 'eol))
!          (relpos (c-langelem-pos langelem))
           (prev-col-column (progn
                              (skip-chars-backward "^:" relpos)
                              (and (eq (char-before) ?:)
***************
*** 927,939 ****
                                 containing-sexp))))))
        (when res
        (goto-char (cdr res))
!       (- (current-column)
!          (progn
!            (back-to-indentation)
!            (current-column)))))))
  
  (defun c-lineup-whitesmith-in-block (langelem)
!   "Line up lines inside a block in whitesmith style.
  It's done in a way that works both when the opening brace hangs and
  when it doesn't.  E.g:
  
--- 955,964 ----
                                 containing-sexp))))))
        (when res
        (goto-char (cdr res))
!       (vector (current-column))))))
  
  (defun c-lineup-whitesmith-in-block (langelem)
!   "Line up lines inside a block in Whitesmith style.
  It's done in a way that works both when the opening brace hangs and
  when it doesn't.  E.g:
  
***************
*** 946,966 ****
  In the first case the indentation is kept unchanged, in the
  second `c-basic-offset' is added.
  
! Works with: defun-close, defun-block-intro, block-close,
! brace-list-close, brace-list-intro, statement-block-intro and all in*
  symbols, e.g. inclass and inextern-lang."
    (save-excursion
!     (+ (progn
!        (back-to-indentation)
!        (if (eq (char-syntax (char-after)) ?\()
!            c-basic-offset
!          0))
!        (progn
!        (goto-char (cdr langelem))
!        (back-to-indentation)
!        (if (eq (char-syntax (char-after)) ?\()
!            0
!          c-basic-offset)))))
  
  (defun c-lineup-cpp-define (langelem)
    "Line up macro continuation lines according to the indentation of
--- 971,1024 ----
  In the first case the indentation is kept unchanged, in the
  second `c-basic-offset' is added.
  
! Works with: defun-close, defun-block-intro, inline-close, block-close,
! brace-list-close, brace-list-intro, statement-block-intro,
! arglist-intro, arglist-cont-nonempty, arglist-close, and all in*
  symbols, e.g. inclass and inextern-lang."
    (save-excursion
!     (if (and (c-go-up-list-backward)
!            (= (point) (c-point 'boi)))
!       nil
!       c-basic-offset)))
! 
! (defun c-lineup-after-whitesmith-blocks (langelem)
!   "Compensate for Whitesmith style indentation of blocks.
! Due to the way CC Mode calculates anchor positions for normal lines
! inside blocks, this function is necessary for those lines to get
! correct Whitesmith style indentation.  Consider the following
! examples:
! 
!                     int foo()
!                         {
! int foo()                   {
!     {                       a;
!     a;                      }
!     x;       <->        x;        <- c-lineup-after-whitesmith-blocks
! 
! The fact that the line with \"x\" is preceded by a Whitesmith style
! indented block in one case and not the other should not affect its
! indentation.  But since CC Mode in cases like this uses the
! indentation of the preceding statement as anchor position, the \"x\"
! would in the rightmost case be indented too much if the offset for
! `statement' was set simply to zero.
! 
! This lineup function corrects for this situation by detecting if the
! anchor position is at an open paren character.  In that case, it
! instead indents relative to the surrounding block just like
! `c-lineup-whitesmith-in-block'.
! 
! Works with: brace-list-entry, brace-entry-open, statement,
! arglist-cont."
!   (save-excursion
!     (goto-char (c-langelem-pos langelem))
!     (when (looking-at "\\s\(")
!       (if (c-go-up-list-backward)
!         (let ((pos (point)))
!           (back-to-indentation)
!           (if (= pos (point))
!               (vector (current-column))
!             (vector (+ (current-column) c-basic-offset))))
!       (vector 0)))))
  
  (defun c-lineup-cpp-define (langelem)
    "Line up macro continuation lines according to the indentation of
***************
*** 1058,1066 ****
  The \"x\" line is aligned to the text after the \":\" on the \"w\" line, and
  similarly \"z\" under \"y\".
  
! This is done only in an \"asm\" or \"__asm__\" block, and only to those
! lines mentioned.  Anywhere else nil is returned.  The usual arrangement is
! to have this routine as an extra feature at the start of arglist lineups, e.g.
  
      (c-lineup-gcc-asm-reg c-lineup-arglist)
  
--- 1116,1125 ----
  The \"x\" line is aligned to the text after the \":\" on the \"w\" line, and
  similarly \"z\" under \"y\".
  
! This is done only in an \"asm\" or \"__asm__\" block, and only to
! those lines mentioned.  Anywhere else nil is returned.  The usual
! arrangement is to have this routine as an extra feature at the start
! of arglist line-ups, e.g.
  
      (c-lineup-gcc-asm-reg c-lineup-arglist)
  
***************
*** 1076,1082 ****
         ;; This can occur for arglist-cont-nonempty with nested arglist
         ;; starts on the same line.
         (or (not (eq (car elem) 'arglist-cont-nonempty))
!          (eq (elt c-syntactic-element 2)
               (c-most-enclosing-brace (c-parse-state))))
  
         ;; Find the ":" to align to.  Look for this first so as to quickly
--- 1135,1141 ----
         ;; This can occur for arglist-cont-nonempty with nested arglist
         ;; starts on the same line.
         (or (not (eq (car elem) 'arglist-cont-nonempty))
!          (eq (c-langelem-2nd-pos c-syntactic-element)
               (c-most-enclosing-brace (c-parse-state))))
  
         ;; Find the ":" to align to.  Look for this first so as to quickly
***************
*** 1117,1128 ****
      (let (langelem)
        (if (and (eq syntax 'block-close)
               (setq langelem (assq 'block-close c-syntactic-context))
!              (progn (goto-char (elt langelem 1))
                      (if (eq (char-after) ?{)
                          (c-safe (c-forward-sexp -1)))
                      (looking-at "\\<do\\>[^_]")))
          '(before)
        '(before after)))))
  
  (defun c-gnu-impose-minimum ()
    "Imposes a minimum indentation for lines inside code blocks.
--- 1176,1198 ----
      (let (langelem)
        (if (and (eq syntax 'block-close)
               (setq langelem (assq 'block-close c-syntactic-context))
!              (progn (goto-char (c-langelem-pos langelem))
                      (if (eq (char-after) ?{)
                          (c-safe (c-forward-sexp -1)))
                      (looking-at "\\<do\\>[^_]")))
          '(before)
        '(before after)))))
+ 
+ (defun c-snug-1line-defun-close (syntax pos)
+   "Determine the brace hanginess for an AWK defun-close.
+ If the action/function being closed is a one-liner, keep it so.  Otherwise put
+ the closing brace on its own line."
+   (save-excursion
+     (goto-char pos)
+     (if (> (c-point 'bol)
+          (progn (up-list -1) (point)))
+       '(before after)
+       '(after))))
  
  (defun c-gnu-impose-minimum ()
    "Imposes a minimum indentation for lines inside code blocks.




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