(eval-when-compile
(let ((load-path
(if (and (boundp 'byte-compile-dest-file)
(stringp byte-compile-dest-file))
(cons (file-name-directory byte-compile-dest-file) load-path)
load-path)))
(require 'cc-bytecomp)))
(cc-require 'cc-defs)
(cc-require 'cc-vars)
(cc-require 'cc-langs)
(cc-bytecomp-defun buffer-syntactic-context)
(defvar c-state-cache nil)
(defvar c-in-literal-cache t)
(defvar c-maybe-labelp nil)
(defun c-beginning-of-statement-1 (&optional lim)
(let ((firstp t)
(substmt-p t)
donep c-in-literal-cache saved
(last-begin (point)))
(if (and (progn (c-backward-syntactic-ws lim)
(eq (char-before) ?\ (c-safe (progn (forward-char -1)
(setq saved (point))
t))
(progn (c-backward-syntactic-ws lim)
(memq (char-before) '(?\ )
(setq last-begin saved)
(goto-char last-begin)
(while (not donep)
(if (bobp) (setq donep t)
(if (not (c-safe (progn (c-backward-sexp 1) t)))
(progn
(if firstp
(backward-up-list 1)
(goto-char last-begin))
(save-excursion
(c-backward-syntactic-ws lim)
(skip-chars-backward "-+!*&:.~@ \t\n")
(if (eq (char-before) ?\()
(setq last-begin (point))))
(goto-char last-begin)
(setq donep t)))
(setq c-maybe-labelp nil)
(cond
(donep)
((eq (c-in-literal lim) 'pound)
(beginning-of-line))
((c-in-literal lim))
((or (and c-conditional-key (looking-at c-conditional-key))
(and (eq (char-after) ?\()
(save-excursion
(c-forward-sexp 1)
(c-forward-syntactic-ws)
(not (eq (char-after) ?\ (let ((here (point))
(foundp (progn
(c-backward-syntactic-ws lim)
(forward-word -1)
(and lim
(<= lim (point))
(not (c-in-literal lim))
(not (eq (char-before) ?_))
c-conditional-key
(looking-at c-conditional-key)
))))
(if (not foundp)
(goto-char here))
foundp)))
(if (save-excursion
(and (not substmt-p)
(c-safe (progn (c-forward-sexp -1) t))
(looking-at "\\<else\\>[ \t\n]+\\<if\\>")
(not (c-in-literal lim))))
(progn
(c-forward-sexp -1)
(c-backward-to-start-of-if lim)))
(if (and (not substmt-p)
(looking-at "\\<else\\>[^_]"))
(c-backward-to-start-of-if lim))
(if (not substmt-p)
(while (looking-at "\\<\\(catch\\|finally\\)\\>[^_]")
(c-safe (c-backward-sexp 2))
(if (eq (char-after) ?\()
(c-safe (c-backward-sexp)))))
(if (and (looking-at "\\<while\\>[^_]")
(c-backward-to-start-of-do lim))
(setq substmt-p nil))
(setq last-begin (point)
donep substmt-p))
((and (looking-at c-label-key)
(not (looking-at "default\\>"))
(not (and (c-major-mode-is 'pike-mode)
(save-excursion
(and (c-safe (backward-up-list 1) t)
(eq (char-after) ?\()))))))
(firstp (setq firstp nil
substmt-p (not (c-crosses-statement-barrier-p
(point) last-begin))
last-begin (point)))
((save-excursion
(if (or (memq (char-after) '(?\( ?\[))
(and (eq (char-after) ?{)
(c-looking-at-inexpr-block lim)))
(c-forward-sexp 1))
(c-crosses-statement-barrier-p (point) last-begin))
(setq donep t))
((and c-maybe-labelp
(or (and c-access-key (looking-at c-access-key))
(let ((here (point)))
(beginning-of-line)
(c-forward-syntactic-ws here)
(if (looking-at c-switch-label-key)
t
(goto-char here)
nil)))))
((and c-method-key
(setq last-begin (c-in-method-def-p)))
(setq donep t))
((not (looking-at "\\s \\|/[/*]"))
(setq last-begin (point)))
))))
(goto-char last-begin)
(let ((lim (point)))
(skip-chars-backward "-+!*&~@`# \t\n" (c-point 'boi))
(skip-chars-forward " \t\n" lim))))
(defun c-end-of-statement-1 ()
(condition-case nil
(let (beg end found)
(while (and (not (eobp))
(progn
(setq beg (point))
(c-forward-sexp 1)
(setq end (point))
(goto-char beg)
(setq found nil)
(while (and (not found)
(re-search-forward "[;{}]" end t))
(if (not (c-in-literal beg))
(setq found t)))
(not found)))
(goto-char end))
(re-search-backward "[;{}]")
(forward-char 1))
(error
(let ((beg (point)))
(c-safe (backward-up-list -1))
(let ((end (point)))
(goto-char beg)
(search-forward ";" end 'move)))
)))
(defun c-crosses-statement-barrier-p (from to)
(let ((here (point))
(lim from)
crossedp)
(condition-case ()
(progn
(goto-char from)
(while (and (not crossedp)
(< (point) to))
(skip-chars-forward "^;{}:" (1- to))
(if (not (c-in-literal lim))
(progn
(if (memq (char-after) '(?\ (setq crossedp t)
(if (eq (char-after) ?:)
(setq c-maybe-labelp t))
(forward-char 1))
(setq lim (point)))
(forward-char 1))))
(error (setq crossedp nil)))
(goto-char here)
crossedp))
(defun c-beginning-of-macro (&optional lim)
(let ((here (point)))
(beginning-of-line)
(while (eq (char-before (1- (point))) ?\\)
(forward-line -1))
(back-to-indentation)
(if (and (<= (point) here)
(eq (char-after) ?#))
t
(goto-char here)
nil)))
(defun c-forward-syntactic-ws (&optional lim)
(let* ((here (point-max))
(hugenum (point-max)))
(while (/= here (point))
(setq here (point))
(c-forward-comment hugenum)
(when (and (eq (char-after) ?#)
(= (c-point 'boi) (point)))
(while (and (eq (char-before (c-point 'eol)) ?\\)
(= (forward-line 1) 0)))
(end-of-line))
)
(if lim (goto-char (min (point) lim)))))
(defun c-backward-syntactic-ws (&optional lim)
(let* ((here (point-min))
(hugenum (- (point-max))))
(while (/= here (point))
(setq here (point))
(c-forward-comment hugenum)
(c-beginning-of-macro))
(if lim (goto-char (max (point) lim)))))
(defun c-forward-token-1 (&optional count balanced lim)
(or count (setq count 1))
(if (< count 0)
(- (c-backward-token-1 (- count) balanced lim))
(let ((jump-syntax (if balanced
'(?w ?_ ?\( ?\) ?\" ?\\ ?/ ?$ ?')
'(?w ?_ ?\" ?\\ ?/ ?')))
(last (point))
(prev (point)))
(save-restriction
(if lim (narrow-to-region (point-min) lim))
(if (/= (point)
(progn (c-forward-syntactic-ws) (point)))
;; Skip whitespace. Count this as a move if we did in fact
;; move and aren't out of bounds.
(or (eobp)
(setq count (max (1- count) 0))))
(if (and (= count 0)
(or (and (memq (char-syntax (or (char-after) ? )) '(?w ?_))
(memq (char-syntax (or (char-before) ? )) '(?w ?_)))
(eobp)))
;; If count is zero we should jump if in the middle of a
;; token or if there is whitespace between point and the
;; following token beginning.
(setq count 1))
(if (eobp)
(goto-char last)
;; Avoid having the limit tests inside the loop.
(condition-case nil
(while (> count 0)
(setq prev last
last (point))
(if (memq (char-syntax (char-after)) jump-syntax)
(goto-char (scan-sexps (point) 1))
(forward-char))
(c-forward-syntactic-ws lim)
(setq count (1- count)))
(error (goto-char last)))
(when (eobp)
(goto-char prev)
(setq count (1+ count)))))
count)))
(defun c-backward-token-1 (&optional count balanced lim)
(or count (setq count 1))
(if (< count 0)
(- (c-forward-token-1 (- count) balanced lim))
(let ((jump-syntax (if balanced
'(?w ?_ ?\( ?\) ?\" ?\\ ?/ ?$ ?')
'(?w ?_ ?\" ?\\ ?/ ?')))
last)
(if (and (= count 0)
(or (and (memq (char-syntax (or (char-after) ? )) '(?w ?_))
(memq (char-syntax (or (char-before) ? )) '(?w ?_)))
(/= (point)
(save-excursion (c-forward-syntactic-ws) (point)))
(eobp)))
;; If count is zero we should jump if in the middle of a
;; token or if there is whitespace between point and the
;; following token beginning.
(setq count 1))
(save-restriction
(if lim (narrow-to-region lim (point-max)))
(or (bobp)
(progn
;; Avoid having the limit tests inside the loop.
(condition-case nil
(while (progn
(setq last (point))
(> count 0))
(c-backward-syntactic-ws lim)
(if (memq (char-syntax (char-before)) jump-syntax)
(goto-char (scan-sexps (point) -1))
(backward-char))
(setq count (1- count)))
(error (goto-char last)))
(if (bobp) (goto-char last)))))
count)))
;; Return `c' if in a C-style comment, `c++' if in a C++ style
;; comment, `string' if in a string literal, `pound' if on a
;; preprocessor line, or nil if not in a comment at all. Optional LIM
;; is used as the backward limit of the search. If omitted, or nil,
;; `beginning-of-defun' is used."
(defun c-in-literal (&optional lim)
(if (and (vectorp c-in-literal-cache)
(= (point) (aref c-in-literal-cache 0)))
(aref c-in-literal-cache 1)
(let ((rtn (save-excursion
(let* ((lim (or lim (c-point 'bod)))
(state (parse-partial-sexp lim (point))))
(cond
((nth 3 state) 'string)
((nth 4 state) (if (nth 7 state) 'c++ 'c))
((c-beginning-of-macro lim) 'pound)
(t nil))))))
(if (not c-in-literal-cache)
(setq c-in-literal-cache (vector (point) rtn)))
rtn)))
(defun c-fast-in-literal (&optional lim)
(let ((context (buffer-syntactic-context)))
(cond
((eq context 'string) 'string)
((eq context 'comment) 'c++)
((eq context 'block-comment) 'c)
((save-excursion (c-beginning-of-macro lim)) 'pound))))
(if (fboundp 'buffer-syntactic-context)
(defalias 'c-in-literal 'c-fast-in-literal))
(defun c-literal-limits (&optional lim near not-in-delimiter)
(save-excursion
(let* ((pos (point))
(lim (or lim (c-point 'bod)))
(state (parse-partial-sexp lim (point))))
(cond ((nth 3 state)
(while (nth 3 state)
(search-backward (make-string 1 (nth 3 state)))
(setq state (parse-partial-sexp lim (point))))
(cons (point) (or (c-safe (c-forward-sexp 1) (point))
(point-max))))
((nth 7 state)
(beginning-of-line)
(setq state (parse-partial-sexp lim (point))
lim (point))
(while (not (nth 7 state))
(search-forward "//") (setq state (parse-partial-sexp
lim (point) nil nil state)
lim (point)))
(backward-char 2)
(cons (point) (progn (c-forward-comment 1) (point))))
((nth 4 state)
(while (nth 4 state)
(search-backward "/*") (setq state (parse-partial-sexp lim (point))))
(cons (point) (progn (c-forward-comment 1) (point))))
((and (not not-in-delimiter)
(not (nth 5 state))
(eq (char-before) ?/)
(looking-at "[/*]"))
(backward-char 1)
(cons (point) (progn (c-forward-comment 1) (point))))
(near
(goto-char pos)
(skip-chars-forward " \t")
(cond
((eq (char-syntax (or (char-after) ?\ )) ?\") ; String.
(cons (point) (or (c-safe (c-forward-sexp 1) (point))
(point-max))))
((looking-at "/[/*]") ; Line or block comment.
(cons (point) (progn (c-forward-comment 1) (point))))
(t
;; Search backward.
(skip-chars-backward " \t")
(let ((end (point)) beg)
(cond
((eq (char-syntax (or (char-before) ?\ )) ?\") ; String.
(setq beg (c-safe (c-backward-sexp 1) (point))))
((and (c-safe (forward-char -2) t)
(looking-at "*/"))
;; Block comment. Due to the nature of line
;; comments, they will always be covered by the
;; normal case above.
(goto-char end)
(c-forward-comment -1)
;; If LIM is bogus, beg will be bogus.
(setq beg (point))))
(if beg (cons beg end))))))
))))
(defun c-literal-limits-fast (&optional lim near not-in-delimiter)
;; Like c-literal-limits, but for emacsen whose `parse-partial-sexp'
;; returns the pos of the comment start.
(save-excursion
(let* ((pos (point))
(lim (or lim (c-point 'bod)))
(state (parse-partial-sexp lim (point))))
(cond ((nth 3 state) ; String.
(goto-char (nth 8 state))
(cons (point) (or (c-safe (c-forward-sexp 1) (point))
(point-max))))
((nth 4 state) ; Comment.
(goto-char (nth 8 state))
(cons (point) (progn (c-forward-comment 1) (point))))
((and (not not-in-delimiter)
(not (nth 5 state))
(eq (char-before) ?/)
(looking-at "[/*]"))
;; We're standing in a comment starter.
(backward-char 1)
(cons (point) (progn (c-forward-comment 1) (point))))
(near
(goto-char pos)
;; Search forward for a literal.
(skip-chars-forward " \t")
(cond
((eq (char-syntax (or (char-after) ?\ )) ?\") ; String.
(cons (point) (or (c-safe (c-forward-sexp 1) (point))
(point-max))))
((looking-at "/[/*]") ; Line or block comment.
(cons (point) (progn (c-forward-comment 1) (point))))
(t
;; Search backward.
(skip-chars-backward " \t")
(let ((end (point)) beg)
(cond
((eq (char-syntax (or (char-before) ?\ )) ?\") ; String.
(setq beg (c-safe (c-backward-sexp 1) (point))))
((and (c-safe (forward-char -2) t)
(looking-at "*/"))
;; Block comment. Due to the nature of line
;; comments, they will always be covered by the
;; normal case above.
(goto-char end)
(c-forward-comment -1)
;; If LIM is bogus, beg will be bogus.
(setq beg (point))))
(if beg (cons beg end))))))
))))
(if (c-safe (> (length (save-excursion (parse-partial-sexp 1 1))) 8))
(defalias 'c-literal-limits 'c-literal-limits-fast))
(defun c-collect-line-comments (range)
;; If the argument is a cons of two buffer positions (such as
;; returned by c-literal-limits), and that range contains a C++
;; style line comment, then an extended range is returned that
;; contains all adjacent line comments (i.e. all comments that
;; starts in the same column with no empty lines or non-whitespace
;; characters between them). Otherwise the argument is returned.
(save-excursion
(condition-case nil
(if (and (consp range) (progn
(goto-char (car range))
(looking-at "//")))
(let ((col (current-column))
(beg (point))
(bopl (c-point 'bopl))
(end (cdr range)))
;; Got to take care in the backward direction to handle
;; comments which are preceded by code.
(while (and (c-forward-comment -1)
(>= (point) bopl)
(looking-at "//")
(= col (current-column)))
(setq beg (point)
bopl (c-point 'bopl)))
(goto-char end)
(while (and (progn (skip-chars-forward " \t")
(looking-at "//"))
(= col (current-column))
(prog1 (zerop (forward-line 1))
(setq end (point)))))
(cons beg end))
range)
(error range))))
(defun c-literal-type (range)
;; Convenience function that given the result of c-literal-limits,
;; returns nil or the type of literal that the range surrounds.
;; It's much faster than using c-in-literal and is intended to be
;; used when you need both the type of a literal and its limits.
(if (consp range)
(save-excursion
(goto-char (car range))
(cond ((eq (char-syntax (or (char-after) ?\ )) ?\") 'string)
((looking-at "//") 'c++)
(t 'c))) ; Assuming the range is valid.
range))
;; utilities for moving and querying around syntactic elements
(defvar c-parsing-error nil)
(defun c-parse-state ()
;; Finds and records all open parens between some important point
;; earlier in the file and point.
;;
;; if there's a state cache, return it
(if c-state-cache c-state-cache
(let* (at-bob
(pos (save-excursion
;; go back 2 bods, but ignore any bogus positions
;; returned by beginning-of-defun (i.e. open paren
;; in column zero)
(let ((cnt 2))
(while (not (or at-bob (zerop cnt)))
(goto-char (c-point 'bod))
(if (and
(eq (char-after) ?\{)
;; The following catches an obscure special
;; case where the brace is preceded by an
;; open paren. That can only legally occur
;; with blocks inside expressions and in
;; Pike special brace lists. Even so, this
;; test is still bogus then, but hopefully
;; good enough. (We don't want to use
;; up-list here since it might be slow.)
(save-excursion
(c-backward-syntactic-ws)
(not (eq (char-before) ?\())))
(setq cnt (1- cnt)))
(if (bobp)
(setq at-bob t))))
(point)))
(here (save-excursion
;;(skip-chars-forward " \t}")
(point)))
(last-bod here) (last-pos pos)
placeholder state sexp-end)
;; cache last bod position
(while (catch 'backup-bod
(setq state nil)
(while (and pos (< pos here))
(setq last-pos pos)
(if (and (setq pos (c-safe (scan-lists pos 1 -1)))
(<= pos here))
(progn
(setq sexp-end (c-safe (scan-sexps (1- pos) 1)))
(if (and sexp-end
(<= sexp-end here))
;; we want to record both the start and end
;; of this sexp, but we only want to record
;; the last-most of any of them before here
(progn
(if (eq (char-after (1- pos)) ?\{)
(setq state (cons (cons (1- pos) sexp-end)
(if (consp (car state))
(cdr state)
state))))
(setq pos sexp-end))
;; we're contained in this sexp so put pos on
;; front of list
(setq state (cons (1- pos) state))))
;; something bad happened. check to see if we
;; crossed an unbalanced close brace. if so, we
;; didn't really find the right `important bufpos'
;; so lets back up and try again
(if (and (not pos) (not at-bob)
(setq placeholder
(c-safe (scan-lists last-pos 1 1)))
;;(char-after (1- placeholder))
(<= placeholder here)
(eq (char-after (1- placeholder)) ?\}))
(while t
(setq last-bod (c-safe (scan-lists last-pos -1 1)))
(if (not last-bod)
(save-excursion
;; bogus, but what can we do here?
(goto-char placeholder)
(beginning-of-line)
(setq c-parsing-error
(format "\
Unbalanced close brace at line %d" (1+ (count-lines 1 (point)))))
(throw 'backup-bod nil))
(setq at-bob (= last-bod (point-min))
pos last-bod)
(if (= (char-after last-bod) ?\{)
(throw 'backup-bod t)))
)) ;end-if
)) ;end-while
nil))
state)))
(defun c-whack-state (bufpos state)
;; whack off any state information that appears on STATE which lies
;; after the bounds of BUFPOS.
(let (newstate car)
(while state
(setq car (car state)
state (cdr state))
(if (consp car)
;; just check the car, because in a balanced brace
;; expression, it must be impossible for the corresponding
;; close brace to be before point, but the open brace to be
;; after.
(if (<= bufpos (car car))
nil ; whack it off
;; its possible that the open brace is before bufpos, but
;; the close brace is after. In that case, convert this
;; to a non-cons element.
(if (<= bufpos (cdr car))
(setq newstate (append newstate (list (car car))))
;; we know that both the open and close braces are
;; before bufpos, so we also know that everything else
;; on state is before bufpos, so we can glom up the
;; whole thing and exit.
(setq newstate (append newstate (list car) state)
state nil)))
(if (<= bufpos car)
nil ; whack it off
;; it's before bufpos, so everything else should too
(setq newstate (append newstate (list car) state)
state nil))))
newstate))
(defun c-hack-state (bufpos which state)
;; Using BUFPOS buffer position, and WHICH (must be 'open or
;; 'close), hack the c-parse-state STATE and return the results.
(if (eq which 'open)
(let ((car (car state)))
(if (or (null car)
(consp car)
(/= bufpos car))
(cons bufpos state)
state))
(if (not (eq which 'close))
(error "c-hack-state, bad argument: %s" which))
;; 'close brace
(let ((car (car state))
(cdr (cdr state)))
(if (consp car)
(setq car (car cdr)
cdr (cdr cdr)))
;; TBD: is this test relevant???
(if (consp car)
state ;on error, don't change
;; watch out for balanced expr already on cdr of list
(cons (cons car bufpos)
(if (consp (car cdr))
(cdr cdr) cdr))
))))
(defun c-adjust-state (from to shift state)
;; Adjust all points in state that lie in the region FROM..TO by
;; SHIFT amount.
(mapcar
(function
(lambda (e)
(if (consp e)
(let ((car (car e))
(cdr (cdr e)))
(if (and (<= from car) (< car to))
(setcar e (+ shift car)))
(if (and (<= from cdr) (< cdr to))
(setcdr e (+ shift cdr))))
(if (and (<= from e) (< e to))
(setq e (+ shift e))))
e))
state))
(defun c-beginning-of-inheritance-list (&optional lim)
;; Go to the first non-whitespace after the colon that starts a
;; multiple inheritance introduction. Optional LIM is the farthest
;; back we should search.
(let* ((lim (or lim (c-point 'bod)))
(placeholder (progn
(back-to-indentation)
(point)))
(chr (char-after)))
(c-backward-syntactic-ws lim)
(while (and (> (point) lim)
(or (eq chr ?,)
(memq (char-before) '(?, ?:)))
(progn
(beginning-of-line)
(setq placeholder (point))
(skip-chars-forward " \t")
(setq chr (char-after))
(not (looking-at c-class-key))
))
(c-backward-syntactic-ws lim))
(goto-char placeholder)
(skip-chars-forward "^:" (c-point 'eol))))
(defun c-in-method-def-p ()
;; Return nil if we aren't in a method definition, otherwise the
;; position of the initial [+-].
(save-excursion
(beginning-of-line)
(and c-method-key
(looking-at c-method-key)
(point))
))
(defun c-at-toplevel-p ()
"Return a determination as to whether point is at the `top-level'.
Being at the top-level means that point is either outside any
enclosing block (such function definition), or inside a class
definition, but outside any method blocks.
If point is not at the top-level (e.g. it is inside a method
definition), then nil is returned. Otherwise, if point is at a
top-level not enclosed within a class definition, t is returned.
Otherwise, a 2-vector is returned where the zeroth element is the
buffer position of the start of the class declaration, and the first
element is the buffer position of the enclosing class's opening
brace."
(let ((state (c-parse-state)))
(or (not (c-most-enclosing-brace state))
(c-search-uplist-for-classkey state))))
(defun c-just-after-func-arglist-p (&optional containing)
;; Return t if we are between a function's argument list closing
;; paren and its opening brace. Note that the list close brace
;; could be followed by a "const" specifier or a member init hanging
;; colon. Optional CONTAINING is position of containing s-exp open
;; brace. If not supplied, point is used as search start.
(save-excursion
(c-backward-syntactic-ws)
(let ((checkpoint (or containing (point))))
(goto-char checkpoint)
;; could be looking at const specifier
(if (and (eq (char-before) ?t)
(forward-word -1)
(looking-at "\\<const\\>"))
(c-backward-syntactic-ws)
;; otherwise, we could be looking at a hanging member init
;; colon
(goto-char checkpoint)
(while (eq (char-before) ?,)
;; this will catch member inits with multiple
;; line arglists
(forward-char -1)
(c-backward-syntactic-ws (c-point 'bol))
(if (eq (char-before) ?\))
(c-backward-sexp 2)
(c-backward-sexp 1))
(c-backward-syntactic-ws))
(if (and (eq (char-before) ?:)
(progn
(forward-char -1)
(c-backward-syntactic-ws)
(looking-at "[ \t\n]*:\\([^:]+\\|$\\)")))
nil
(goto-char checkpoint))
)
(and (eq (char-before) ?\))
;; check if we are looking at a method def
(or (not c-method-key)
(progn
(c-forward-sexp -1)
(forward-char -1)
(c-backward-syntactic-ws)
(not (or (memq (char-before) '(?- ?+))
;; or a class category
(progn
(c-forward-sexp -2)
(looking-at c-class-key))
)))))
)))
;; defuns to look backwards for things
(defun c-backward-to-start-of-do (&optional lim)
;; Move to the start of the last "unbalanced" do expression.
;; Optional LIM is the farthest back to search. If none is found,
;; nil is returned and point is left unchanged, otherwise t is returned.
(let ((do-level 1)
(case-fold-search nil)
(lim (or lim (c-point 'bod)))
(here (point))
foundp)
(while (not (zerop do-level))
;; we protect this call because trying to execute this when the
;; while is not associated with a do will throw an error
(condition-case nil
(progn
(c-backward-sexp 1)
(cond
;; break infloop for illegal C code
((bobp) (setq do-level 0))
((memq (c-in-literal lim) '(c c++)))
((looking-at "while\\b[^_]")
(setq do-level (1+ do-level)))
((looking-at "do\\b[^_]")
(if (zerop (setq do-level (1- do-level)))
(setq foundp t)))
((<= (point) lim)
(setq do-level 0)
(goto-char lim))))
(error
(goto-char lim)
(setq do-level 0))))
(if (not foundp)
(goto-char here))
foundp))
(defun c-backward-to-start-of-if (&optional lim)
;; Move to the start of the last "unbalanced" if and return t. If
;; none is found, and we are looking at an if clause, nil is
;; returned.
(let ((if-level 1)
(here (c-point 'bol))
(case-fold-search nil)
(lim (or (and lim (>= (point) lim) lim)
(c-point 'bod)))
(at-if (looking-at "if\\b[^_]")))
(catch 'orphan-if
(while (and (not (bobp))
(not (zerop if-level)))
(c-backward-syntactic-ws)
(condition-case nil
(c-backward-sexp 1)
(error
(unless at-if
(goto-char here)
(c-beginning-of-statement-1)
(setq c-parsing-error
(format "No matching `if' found for `else' on line %d"
(1+ (count-lines 1 here))))
(throw 'orphan-if nil))))
(cond
((looking-at "else\\b[^_]")
(setq if-level (1+ if-level)))
((looking-at "if\\b[^_]")
;; check for else if... skip over
(let ((here (point)))
(c-safe (c-forward-sexp -1))
(if (looking-at "\\<else\\>[ \t]+\\<if\\>[^_]")
nil
(setq if-level (1- if-level))
(goto-char here))))
((< (point) lim)
(setq if-level 0)
(goto-char lim))
))
t)))
(defun c-skip-conditional ()
;; skip forward over conditional at point, including any predicate
;; statements in parentheses. No error checking is performed.
(c-forward-sexp (cond
;; else if()
((looking-at "\\<else\\>[ \t]+\\<if\\>\\([^_]\\|$\\)") 3)
;; do, else, try, finally
((looking-at
"\\<\\(do\\|else\\|try\\|finally\\)\\>\\([^_]\\|$\\)")
1)
;; for, if, while, switch, catch, synchronized, foreach
(t 2))))
(defun c-beginning-of-closest-statement (&optional lim)
;; Go back to the closest preceding statement start.
(let ((start (point))
(label-re (concat c-label-key "\\|"
c-switch-label-key))
stmtbeg)
(if c-access-key
(setq label-re (concat label-re "\\|" c-access-key)))
(c-beginning-of-statement-1 lim)
(while (and (when (<= (point) start)
(setq stmtbeg (point)))
(cond
((looking-at label-re)
;; Skip a label.
(goto-char (match-end 0))
t)
((looking-at c-conditional-key)
;; Skip a conditional statement.
(c-safe (c-skip-conditional) t))
(t nil)))
(c-forward-syntactic-ws start))
(if stmtbeg
(goto-char stmtbeg))))
(defun c-beginning-of-member-init-list (&optional limit)
;; Goes to the beginning of a member init list (i.e. just after the
;; ':') if inside one. Returns t in that case, nil otherwise.
(or limit
(setq limit (point-min)))
(skip-chars-forward " \t")
(if (eq (char-after) ?,)
(forward-char 1)
(c-backward-syntactic-ws limit))
(while (and (< limit (point))
(eq (char-before) ?,))
;; this will catch member inits with multiple
;; line arglists
(forward-char -1)
(c-backward-syntactic-ws limit)
(if (eq (char-before) ?\))
(c-backward-sexp 1))
(c-backward-syntactic-ws limit)
;; Skip over any template arg to the class.
(if (eq (char-before) ?>)
(c-with-syntax-table c++-template-syntax-table
(c-backward-sexp 1)))
(c-backward-sexp 1)
(c-backward-syntactic-ws limit)
;; Skip backwards over a fully::qualified::name.
(while (and (eq (char-before) ?:)
(save-excursion
(forward-char -1)
(eq (char-before) ?:)))
(backward-char 2)
(c-backward-sexp 1))
;; now continue checking
(c-backward-syntactic-ws limit))
(and (< limit (point))
(eq (char-before) ?:)))
(defun c-skip-case-statement-forward (state &optional lim)
;; skip forward over case/default bodies, with optional maximal
;; limit. if no next case body is found, nil is returned and point
;; is not moved
(let ((lim (or lim (point-max)))
(here (point))
donep foundp bufpos
(safepos (point))
(balanced (car state)))
;; search until we've passed the limit, or we've found our match
(while (and (< (point) lim)
(not donep))
(setq safepos (point))
;; see if we can find a case statement, not in a literal
(if (and (re-search-forward c-switch-label-key lim 'move)
(setq bufpos (match-beginning 0))
(not (c-in-literal safepos))
(/= bufpos here))
;; if we crossed into a balanced sexp, we know the case is
;; not part of our switch statement, so just bound over the
;; sexp and keep looking.
(if (and (consp balanced)
(> bufpos (car balanced))
(< bufpos (cdr balanced)))
(goto-char (cdr balanced))
(goto-char bufpos)
(setq donep t
foundp t))))
(if (not foundp)
(goto-char here))
foundp))
(defun c-search-uplist-for-classkey (brace-state)
;; search for the containing class, returning a 2 element vector if
;; found. aref 0 contains the bufpos of the boi of the class key
;; line, and aref 1 contains the bufpos of the open brace.
(if (null brace-state)
;; no brace-state means we cannot be inside a class
nil
(let ((carcache (car brace-state))
search-start search-end)
(if (consp carcache)
;; a cons cell in the first element means that there is some
;; balanced sexp before the current bufpos. this we can
;; ignore. the nth 1 and nth 2 elements define for us the
;; search boundaries
(setq search-start (nth 2 brace-state)
search-end (nth 1 brace-state))
;; if the car was not a cons cell then nth 0 and nth 1 define
;; for us the search boundaries
(setq search-start (nth 1 brace-state)
search-end (nth 0 brace-state)))
;; search-end cannot be a cons cell
(and (consp search-end)
(error "consp search-end: %s" search-end))
;; if search-end is nil, or if the search-end character isn't an
;; open brace, we are definitely not in a class
(if (or (not search-end)
(< search-end (point-min))
(not (eq (char-after search-end) ?{)))
nil
;; now, we need to look more closely at search-start. if
;; search-start is nil, then our start boundary is really
;; point-min.
(if (not search-start)
(setq search-start (point-min))
;; if search-start is a cons cell, then we can start
;; searching from the end of the balanced sexp just ahead of
;; us
(if (consp search-start)
(setq search-start (cdr search-start))))
;; now we can do a quick regexp search from search-start to
;; search-end and see if we can find a class key. watch for
;; class like strings in literals
(save-excursion
(save-restriction
(goto-char search-start)
(let ((search-key (concat c-class-key "\\|" c-extra-toplevel-key))
foundp class match-end)
(if c-inexpr-class-key
(setq search-key (concat search-key "\\|"
c-inexpr-class-key)))
(while (and (not foundp)
(progn
(c-forward-syntactic-ws)
(> search-end (point)))
(re-search-forward search-key search-end t))
(setq class (match-beginning 0)
match-end (match-end 0))
(if (c-in-literal search-start)
nil ; its in a comment or string, ignore
(goto-char class)
(skip-chars-forward " \t\n")
(setq foundp (vector (c-point 'boi) search-end))
(cond
;; check for embedded keywords
((let ((char (char-after (1- class))))
(and char
(memq (char-syntax char) '(?w ?_))))
(goto-char match-end)
(setq foundp nil))
;; make sure we're really looking at the start of a
;; class definition, and not a forward decl, return
;; arg, template arg list, or an ObjC or Java method.
((and c-method-key
(re-search-forward c-method-key search-end t)
(not (c-in-literal class)))
(setq foundp nil))
;; Check if this is an anonymous inner class.
((and c-inexpr-class-key
(looking-at c-inexpr-class-key))
(while (and (= (c-forward-token-1 1 t) 0)
(looking-at "(\\|\\w\\|\\s_\\|\\.")))
(if (eq (point) search-end)
;; We're done. Just trap this case in the cond.
nil
;; False alarm; all conditions aren't satisfied.
(setq foundp nil)))
;; Its impossible to define a regexp for this, and
;; nearly so to do it programmatically.
;;
;; ; picks up forward decls
;; = picks up init lists
;; ) picks up return types
;; > picks up templates, but remember that we can
;; inherit from templates!
((let ((skipchars "^ (save-excursion
(skip-chars-backward "^<>" search-start)
(if (eq (char-before) ?<)
(setq skipchars (concat skipchars ">"))))
(while (progn
(skip-chars-forward skipchars search-end)
(c-in-literal class))
(forward-char))
(/= (point) search-end))
(setq foundp nil))
)))
foundp))
)))))
(defun c-inside-bracelist-p (containing-sexp brace-state)
(or
(c-safe
(save-excursion
(goto-char containing-sexp)
(c-forward-sexp -1)
(let (bracepos)
(if (and (or (looking-at "enum[\t\n ]+")
(progn (c-forward-sexp -1)
(looking-at "enum[\t\n ]+")))
(setq bracepos (c-safe (scan-lists (point) 1 -1)))
(not (c-crosses-statement-barrier-p (point)
(- bracepos 2))))
(point)))))
(save-excursion
(let ((class-key
(and (c-major-mode-is 'pike-mode)
(concat c-class-key "\\|" c-extra-toplevel-key)))
bufpos lim braceassignp)
(while (and (not bufpos)
containing-sexp)
(if (consp containing-sexp)
(setq containing-sexp (car brace-state)
brace-state (cdr brace-state))
(goto-char containing-sexp)
(if (c-looking-at-inexpr-block)
(setq containing-sexp nil)
(setq lim (if (consp (car brace-state))
(cdr (car brace-state))
(car brace-state))
braceassignp 'dontknow)
(c-backward-token-1 1 t lim)
(when (and (c-major-mode-is 'java-mode)
(eq (char-after) ?\[))
(while (eq braceassignp 'dontknow)
(setq braceassignp
(cond ((/= (c-backward-token-1 1 t lim) 0) nil)
((looking-at "new\\>[^_]") t)
((looking-at "\\sw\\|\\s_\\|[.[]")
'dontknow)
(t nil)))))
(while (eq braceassignp 'dontknow)
(cond ((eq (char-after) ?\ (setq braceassignp nil))
((and class-key
(looking-at class-key))
(setq braceassignp nil))
((eq (char-after) ?=)
(setq braceassignp 'maybe)
(while (and (eq braceassignp 'maybe)
(zerop (c-backward-token-1 1 t lim)))
(setq braceassignp
(cond
((looking-at "operator\\>") nil)
((and (c-major-mode-is 'pike-mode)
(or (eq (char-after) ?`)
(and (eq (char-after) ?\[)
(eq (char-before) ?`))))
nil)
((looking-at "\\s.") 'maybe)
((and (c-major-mode-is 'c++-mode)
(save-excursion
(let ((here (point))
(pos< (progn
(skip-chars-backward "^<>")
(point))))
(and (eq (char-before) ?<)
(not (c-crosses-statement-barrier-p
pos< here))
(not (c-in-literal))
))))
nil)
(t t))))))
(if (and (eq braceassignp 'dontknow)
(/= (c-backward-token-1 1 t lim) 0))
(setq braceassignp nil)))
(if (not braceassignp)
(if (eq (char-after) ?\ (setq containing-sexp nil)
(setq containing-sexp (car brace-state)
brace-state (cdr brace-state)))
(c-beginning-of-statement-1
(c-most-enclosing-brace brace-state))
(setq bufpos (point))))
))
bufpos))
))
(defun c-looking-at-special-brace-list (&optional lim)
(if c-special-brace-lists
(condition-case ()
(save-excursion
(let ((beg (point))
end type)
(c-forward-syntactic-ws)
(if (eq (char-after) ?\()
(progn
(forward-char 1)
(c-forward-syntactic-ws)
(setq type (assq (char-after) c-special-brace-lists)))
(if (setq type (assq (char-after) c-special-brace-lists))
(progn
(c-backward-syntactic-ws)
(forward-char -1)
(setq beg (if (eq (char-after) ?\()
(point)
nil)))))
(if (and beg type)
(if (and (c-safe (goto-char beg)
(c-forward-sexp 1)
(setq end (point))
(= (char-before) ?\)))
(c-safe (goto-char beg)
(forward-char 1)
(c-forward-sexp 1)
(or (/= (char-syntax (char-before)) ?\))
(= (char-before) (cdr type)))))
(if (or (/= (char-syntax (char-before)) ?\))
(= (progn
(c-forward-syntactic-ws)
(point))
(1- end)))
(cons (cons beg end) type))
(cons (list beg) type)))))
(error nil))))
(defun c-looking-at-bos ()
(save-excursion
(c-backward-syntactic-ws)
(or (bobp)
(memq (char-before) '(?\ (and (eq (char-before) ?{)
(not (and c-special-brace-lists
(progn (backward-char)
(c-looking-at-special-brace-list))))))))
(defun c-looking-at-inexpr-block (&optional lim)
(save-excursion
(or lim (setq lim (point-min)))
(let ((block-follows (eq (char-after) ?{)))
(if (and block-follows
(progn (c-backward-syntactic-ws) (> (point) lim))
(eq (char-before) ?\()
(not (and c-special-brace-lists
(c-looking-at-special-brace-list))))
(cons 'inexpr-statement (point))
(let (res)
(while (and (not res)
(= (c-backward-token-1 1 t lim) 0)
(>= (point) lim)
(looking-at "(\\|\\w\\|\\s_\\|\\."))
(setq res
(cond ((and block-follows
c-inexpr-class-key
(looking-at c-inexpr-class-key)
(or (not (looking-at c-class-key))
(let ((prev (point)))
(while (and (= (c-backward-token-1 1 t lim)
0)
(>= (point) lim)
(eq (char-syntax (char-after))
?w))
(setq prev (point)))
(goto-char prev)
(not (c-looking-at-bos)))))
(cons 'inexpr-class (point)))
((and c-inexpr-block-key
(looking-at c-inexpr-block-key))
(cons 'inexpr-statement (point)))
((and c-lambda-key
(looking-at c-lambda-key))
(cons 'inlambda (point))))))
res)))))
(defun c-looking-at-inexpr-block-backward (&optional lim)
(save-excursion
(let ((lim (or lim (c-point 'bod))))
(c-safe
(c-backward-syntactic-ws lim)
(if (eq (char-before) ?}) (progn
(c-forward-sexp -1)
(if (>= (point) lim)
(c-looking-at-inexpr-block lim))))))))
(defun c-on-identifier ()
(if (or (memq (char-syntax (or (char-after) ? )) '(?w ?_))
(memq (char-syntax (or (char-before) ? )) '(?w ?_)))
(save-excursion
(skip-syntax-backward "w_")
(not (looking-at c-keywords)))
(if (c-major-mode-is 'pike-mode)
(save-excursion
(if (eq (char-after) ?\`) (forward-char))
(skip-chars-backward "!%&*+\\-/<=>^|~")
(let ((pos (point)))
(cond ((memq (char-before) '(?\) ?\]))
(c-safe (backward-char 2)))
((memq (char-before) '(?\( ?\[))
(c-safe (backward-char 1))))
(if (not (looking-at "()\\|\\[]"))
(goto-char pos)))
(and (eq (char-before) ?\`)
(looking-at "[-!%&*+/<=>^|~]\\|()\\|\\[]"))))))
(defun c-most-enclosing-brace (state)
(let (enclosingp)
(while (and state (not enclosingp))
(setq enclosingp (car state)
state (cdr state))
(if (consp enclosingp)
(setq enclosingp nil)
(if (> (point-min) enclosingp)
(setq enclosingp nil))
(setq state nil)))
enclosingp))
(defun c-least-enclosing-brace (state)
(c-most-enclosing-brace (nreverse state)))
(defun c-safe-position (bufpos state)
(let ((safepos nil))
(while state
(setq safepos
(if (consp (car state))
(cdr (car state))
(car state)))
(if (< safepos bufpos)
(setq state nil)
(setq state (cdr state))))
safepos))
(defun c-narrow-out-enclosing-class (state lim)
(setq state (c-whack-state (point) state))
(let (inclass-p)
(and state
(setq inclass-p (c-search-uplist-for-classkey state))
(narrow-to-region
(progn
(goto-char (1+ (aref inclass-p 1)))
(skip-chars-forward " \t\n" lim)
(if (<= (point) (aref inclass-p 1))
(progn
(goto-char (1+ (aref inclass-p 1)))
(c-forward-syntactic-ws lim)))
(point))
(progn
(goto-char lim)
(c-point 'eol))))
inclass-p))
(defun c-guess-basic-syntax ()
(save-excursion
(save-restriction
(beginning-of-line)
(let* ((indent-point (point))
(case-fold-search nil)
(fullstate (c-parse-state))
(state fullstate)
literal containing-sexp char-before-ip char-after-ip lim
syntax placeholder c-in-literal-cache inswitch-p
tmpsymbol keyword injava-inher special-brace-list
(inclass-p (c-narrow-out-enclosing-class state indent-point))
inenclosing-p)
(save-excursion
(save-restriction
(widen)
(if (and inclass-p
(progn
(goto-char (aref inclass-p 0))
(looking-at (concat c-extra-toplevel-key "[^_]"))))
(let ((enclosing (match-string 1)))
(cond
((string-equal enclosing "extern")
(setq inenclosing-p 'extern))
((string-equal enclosing "namespace")
(setq inenclosing-p 'namespace))
)))))
(save-excursion
(goto-char indent-point)
(skip-chars-forward " \t}")
(skip-chars-backward " \t")
(while (and state
(not containing-sexp))
(setq containing-sexp (car state)
state (cdr state))
(if (consp containing-sexp)
(if (= (cdr containing-sexp) (point))
(setq containing-sexp (car containing-sexp))
(setq containing-sexp nil))
(if (or (<= containing-sexp (point-min))
(>= containing-sexp indent-point))
(setq containing-sexp nil)))))
(setq lim (or containing-sexp
(if (consp (car fullstate))
(cdr (car fullstate))
nil)
(point-min)))
(goto-char indent-point)
(skip-chars-forward " \t")
(setq char-after-ip (char-after))
(c-backward-syntactic-ws lim)
(setq char-before-ip (char-before))
(goto-char indent-point)
(skip-chars-forward " \t")
(setq literal (c-in-literal lim))
(cond
((memq literal '(string))
(c-add-syntax 'string (c-point 'bopl)))
((memq literal '(c c++))
(c-add-syntax literal (car (c-literal-limits lim))))
((and (eq literal 'pound)
(/= (save-excursion
(c-beginning-of-macro lim)
(setq placeholder (point)))
(c-point 'boi)))
(c-add-syntax 'cpp-macro-cont placeholder))
((and (or c-inexpr-class-key c-inexpr-block-key c-lambda-key)
(setq placeholder (c-looking-at-inexpr-block)))
(setq tmpsymbol (assq (car placeholder)
'((inexpr-class . class-open)
(inexpr-statement . block-open))))
(if tmpsymbol
(setq tmpsymbol (cdr tmpsymbol))
(setq tmpsymbol (if (eq char-after-ip ?{)
'inline-open
'lambda-intro-cont)))
(goto-char (cdr placeholder))
(back-to-indentation)
(c-add-syntax tmpsymbol (point))
(unless (eq (point) (cdr placeholder))
(c-add-syntax (car placeholder))))
((null containing-sexp)
(cond
((setq special-brace-list
(or (and c-special-brace-lists
(c-looking-at-special-brace-list))
(eq char-after-ip ?{)))
(cond
((save-excursion
(goto-char indent-point)
(skip-chars-forward " \t")
(and (c-safe (progn (c-backward-sexp 2) t))
(looking-at (concat c-extra-toplevel-key "[^_]"))
(setq keyword (match-string 1)
placeholder (point))
(or (and (string-equal keyword "namespace")
(setq tmpsymbol 'namespace-open))
(and (string-equal keyword "extern")
(progn
(c-forward-sexp 1)
(c-forward-syntactic-ws)
(eq (char-after) ?\"))
(setq tmpsymbol 'extern-lang-open)))
))
(goto-char placeholder)
(c-add-syntax tmpsymbol (c-point 'boi)))
;; CASE 5A.2: we are looking at a class opening brace
((save-excursion
(goto-char indent-point)
(skip-chars-forward " \t{")
;; TBD: watch out! there could be a bogus
;; c-state-cache in place when we get here. we have
;; to go through much chicanery to ignore the cache.
;; But of course, there may not be! BLECH! BOGUS!
(let ((decl
(let ((c-state-cache nil))
(c-search-uplist-for-classkey (c-parse-state))
)))
(and decl
(setq placeholder (aref decl 0)))
))
(c-add-syntax 'class-open placeholder))
;; CASE 5A.3: brace list open
((save-excursion
(c-beginning-of-statement-1 lim)
;; c-b-o-s could have left us at point-min
(and (bobp)
(c-forward-syntactic-ws indent-point))
(if (looking-at "typedef[^_]")
(progn (c-forward-sexp 1)
(c-forward-syntactic-ws indent-point)))
(setq placeholder (c-point 'boi))
(or (consp special-brace-list)
(and (or (save-excursion
(goto-char indent-point)
(setq tmpsymbol nil)
(while (and (> (point) placeholder)
(= (c-backward-token-1 1 t) 0)
(/= (char-after) ?=))
(if (and (not tmpsymbol)
(looking-at "new\\>[^_]"))
(setq tmpsymbol 'topmost-intro-cont)))
(eq (char-after) ?=))
(looking-at "enum[ \t\n]+"))
(save-excursion
(while (and (< (point) indent-point)
(= (c-forward-token-1 1 t) 0)
(not (memq (char-after) '(?\; ?\()))))
(not (memq (char-after) '(?\; ?\()))
))))
(if (and (c-major-mode-is 'java-mode)
(eq tmpsymbol 'topmost-intro-cont))
;; We're in Java and have found that the open brace
;; belongs to a "new Foo[]" initialization list,
;; which means the brace list is part of an
;; expression and not a top level definition. We
;; therefore treat it as any topmost continuation
;; even though the semantically correct symbol still
;; is brace-list-open, on the same grounds as in
;; case 10B.2.
(progn
(c-beginning-of-statement-1 lim)
(c-forward-syntactic-ws)
(c-add-syntax 'topmost-intro-cont (c-point 'boi)))
(c-add-syntax 'brace-list-open placeholder)))
;; CASE 5A.4: inline defun open
((and inclass-p (not inenclosing-p))
(c-add-syntax 'inline-open)
(c-add-class-syntax 'inclass inclass-p))
;; CASE 5A.5: ordinary defun open
(t
(goto-char placeholder)
(if inclass-p
(c-add-syntax 'defun-open (c-point 'boi))
(c-add-syntax 'defun-open (c-point 'bol)))
)))
;; CASE 5B: first K&R arg decl or member init
((c-just-after-func-arglist-p)
(cond
;; CASE 5B.1: a member init
((or (eq char-before-ip ?:)
(eq char-after-ip ?:))
;; this line should be indented relative to the beginning
;; of indentation for the topmost-intro line that contains
;; the prototype's open paren
;; TBD: is the following redundant?
(if (eq char-before-ip ?:)
(forward-char -1))
(c-backward-syntactic-ws lim)
;; TBD: is the preceding redundant?
(if (eq (char-before) ?:)
(progn (forward-char -1)
(c-backward-syntactic-ws lim)))
(if (eq (char-before) ?\))
(c-backward-sexp 1))
(setq placeholder (point))
(save-excursion
(and (c-safe (c-backward-sexp 1) t)
(looking-at "throw[^_]")
(c-safe (c-backward-sexp 1) t)
(setq placeholder (point))))
(goto-char placeholder)
(c-add-syntax 'member-init-intro (c-point 'boi))
;; we don't need to add any class offset since this
;; should be relative to the ctor's indentation
)
;; CASE 5B.2: K&R arg decl intro
(c-recognize-knr-p
(c-add-syntax 'knr-argdecl-intro (c-point 'boi))
(if inclass-p (c-add-class-syntax 'inclass inclass-p)))
;; CASE 5B.3: Inside a member init list.
((c-beginning-of-member-init-list lim)
(c-forward-syntactic-ws)
(c-add-syntax 'member-init-cont (point)))
;; CASE 5B.4: Nether region after a C++ or Java func
;; decl, which could include a `throws' declaration.
(t
(c-beginning-of-statement-1 lim)
(c-add-syntax 'func-decl-cont (c-point 'boi))
)))
;; CASE 5C: inheritance line. could be first inheritance
;; line, or continuation of a multiple inheritance
((or (and c-baseclass-key
(progn
(when (eq char-after-ip ?,)
(skip-chars-forward " \t")
(forward-char))
(looking-at c-baseclass-key)))
(and (or (eq char-before-ip ?:)
;; watch out for scope operator
(save-excursion
(and (eq char-after-ip ?:)
(c-safe (progn (forward-char 1) t))
(not (eq (char-after) ?:))
)))
(save-excursion
(c-backward-syntactic-ws lim)
(if (eq char-before-ip ?:)
(progn
(forward-char -1)
(c-backward-syntactic-ws lim)))
(back-to-indentation)
(looking-at c-class-key)))
;; for Java
(and (c-major-mode-is 'java-mode)
(let ((fence (save-excursion
(c-beginning-of-statement-1 lim)
(point)))
cont done)
(save-excursion
(while (not done)
(cond ((looking-at c-Java-special-key)
(setq injava-inher (cons cont (point))
done t))
((or (not (c-safe (c-forward-sexp -1) t))
(<= (point) fence))
(setq done t))
)
(setq cont t)))
injava-inher)
(not (c-crosses-statement-barrier-p (cdr injava-inher)
(point)))
))
(cond
;; CASE 5C.1: non-hanging colon on an inher intro
((eq char-after-ip ?:)
(c-backward-syntactic-ws lim)
(c-add-syntax 'inher-intro (c-point 'boi))
;; don't add inclass symbol since relative point already
;; contains any class offset
)
;; CASE 5C.2: hanging colon on an inher intro
((eq char-before-ip ?:)
(c-add-syntax 'inher-intro (c-point 'boi))
(if inclass-p (c-add-class-syntax 'inclass inclass-p)))
;; CASE 5C.3: in a Java implements/extends
(injava-inher
(let ((where (cdr injava-inher))
(cont (car injava-inher)))
(goto-char where)
(cond ((looking-at "throws[ \t\n]")
(c-add-syntax 'func-decl-cont
(progn (c-beginning-of-statement-1 lim)
(c-point 'boi))))
(cont (c-add-syntax 'inher-cont where))
(t (c-add-syntax 'inher-intro
(progn (goto-char (cdr injava-inher))
(c-beginning-of-statement-1 lim)
(point))))
)))
;; CASE 5C.4: a continued inheritance line
(t
(c-beginning-of-inheritance-list lim)
(c-add-syntax 'inher-cont (point))
;; don't add inclass symbol since relative point already
;; contains any class offset
)))
;; CASE 5D: this could be a top-level compound statement, a
;; member init list continuation, or a template argument
;; list continuation.
((c-with-syntax-table (if (c-major-mode-is 'c++-mode)
c++-template-syntax-table
(syntax-table))
(save-excursion
(while (and (= (c-backward-token-1 1 t lim) 0)
(not (looking-at "[ (eq (char-after) ?,)))
(goto-char indent-point)
(c-beginning-of-member-init-list lim)
(cond
((and (save-excursion
(setq placeholder (point))
(c-backward-token-1 1 t lim)
(and (eq (char-after) ?:)
(not (eq (char-before) ?:))))
(save-excursion
(goto-char placeholder)
(back-to-indentation)
(or
(/= (car (save-excursion
(parse-partial-sexp (point) placeholder)))
0)
(and
(if c-access-key (not (looking-at c-access-key)) t)
(not (looking-at c-class-key))
(if c-bitfield-key (not (looking-at c-bitfield-key)) t))
)))
(goto-char placeholder)
(c-forward-syntactic-ws)
(c-add-syntax 'member-init-cont (point))
)
((progn
(c-forward-syntactic-ws indent-point)
(eq (char-after) ?:))
(skip-chars-forward " \t:")
(c-add-syntax 'member-init-cont (point)))
((save-excursion
(c-beginning-of-statement-1 lim)
(setq placeholder (point))
(looking-at c-inher-key))
(goto-char placeholder)
(c-add-syntax 'inher-cont (c-point 'boi)))
((save-excursion
(goto-char indent-point)
(skip-chars-backward "^<" lim)
(setq placeholder (point))
(and (eq (char-before) ?<)
(not (c-in-literal lim))))
(goto-char placeholder)
(c-beginning-of-statement-1 lim)
(c-add-syntax 'template-args-cont (c-point 'boi)))
(t
(c-beginning-of-statement-1 lim)
(and inclass-p c-access-key
(while (looking-at c-access-key)
(forward-line 1)))
(c-forward-syntactic-ws indent-point)
(c-add-syntax 'statement-cont (c-point 'boi)))
))
((and inclass-p
c-access-key
(looking-at c-access-key))
(c-add-syntax 'access-label (c-point 'bonl))
(c-add-class-syntax 'inclass inclass-p))
((and inenclosing-p
(eq char-after-ip ?}))
(setq tmpsymbol (if (eq inenclosing-p 'extern)
'extern-lang-close
'namespace-close))
(c-add-syntax tmpsymbol (aref inclass-p 0)))
((and inclass-p
(eq char-after-ip ?})
(save-excursion
(save-restriction
(widen)
(forward-char 1)
(and (c-safe (progn (c-backward-sexp 1) t))
(= (point) (aref inclass-p 1))
))))
(c-add-class-syntax 'class-close inclass-p))
((and c-recognize-knr-p
(let ((limit (save-excursion
(re-search-backward "^[^ \^L\t\n#]" nil 'move)
(point))))
(save-excursion
(c-backward-syntactic-ws limit)
(setq placeholder (point))
(while (and (memq (char-before) '(?\ (> (point) limit))
(beginning-of-line)
(setq placeholder (point))
(c-backward-syntactic-ws limit))
(and (eq (char-before) ?\))
(or (not c-method-key)
(progn
(c-forward-sexp -1)
(forward-char -1)
(c-backward-syntactic-ws)
(not (or (memq (char-before) '(?- ?+))
(progn
(c-forward-sexp -2)
(looking-at c-class-key))
)))))
))
(save-excursion
(c-beginning-of-statement-1)
(not (looking-at "typedef[ \t\n]+"))))
(goto-char placeholder)
(c-add-syntax 'knr-argdecl (c-point 'boi)))
((and c-method-key
(looking-at c-method-key))
(c-add-syntax 'objc-method-intro (c-point 'boi)))
((progn
(c-backward-syntactic-ws lim)
(while (and inclass-p
c-access-key
(not (bobp))
(save-excursion
(c-safe (progn (c-backward-sexp 1) t))
(looking-at c-access-key)))
(c-backward-sexp 1)
(c-backward-syntactic-ws lim))
(or (bobp)
(memq (char-before) '(?\ (save-restriction
(widen)
(c-add-syntax 'topmost-intro (c-point 'bol))
(if inclass-p
(progn
(goto-char (aref inclass-p 1))
(or (= (point) (c-point 'boi))
(goto-char (aref inclass-p 0)))
(cond
((eq inenclosing-p 'extern)
(c-add-syntax 'inextern-lang (c-point 'boi)))
((eq inenclosing-p 'namespace)
(c-add-syntax 'innamespace (c-point 'boi)))
(t (c-add-class-syntax 'inclass inclass-p)))
))
))
((and c-method-key
(progn
(c-beginning-of-statement-1 lim)
(beginning-of-line)
(looking-at c-method-key)))
(c-add-syntax 'objc-method-args-cont (point)))
((eq (char-before) ?<)
(c-beginning-of-statement-1 lim)
(c-forward-syntactic-ws)
(c-add-syntax 'template-args-cont (c-point 'boi)))
(t
(c-beginning-of-statement-1 lim)
(c-forward-syntactic-ws)
(c-add-syntax 'topmost-intro-cont (c-point 'boi)))
)) ((not (or (and c-special-brace-lists
(save-excursion
(goto-char containing-sexp)
(c-looking-at-special-brace-list)))
(eq (char-after containing-sexp) ?{)))
(c-backward-syntactic-ws containing-sexp)
(cond
((and (or (c-major-mode-is 'pike-mode)
(not (eq char-before-ip ?,)))
(memq char-after-ip '(?\) ?\])))
(goto-char containing-sexp)
(setq placeholder (c-point 'boi))
(when (and (c-safe (backward-up-list 1) t)
(> (point) placeholder))
(forward-char)
(skip-chars-forward " \t")
(setq placeholder (point)))
(c-add-syntax 'arglist-close placeholder))
((eq char-after-ip ?{)
(goto-char indent-point)
(setq placeholder (c-point 'boi))
(goto-char containing-sexp)
(if (c-inside-bracelist-p placeholder
(cons containing-sexp state))
(progn
(c-add-syntax 'brace-list-open (c-point 'boi))
(c-add-syntax 'inexpr-class))
(c-add-syntax 'block-open (c-point 'boi))
(c-add-syntax 'inexpr-statement)))
((memq char-before-ip '(?\( ?\[))
(goto-char containing-sexp)
(setq placeholder (c-point 'boi))
(when (and (c-safe (backward-up-list 1) t)
(> (point) placeholder))
(forward-char)
(skip-chars-forward " \t")
(setq placeholder (point)))
(c-add-syntax 'arglist-intro placeholder))
((save-excursion
(goto-char containing-sexp)
(and (c-safe (progn (c-forward-sexp -1) t))
(looking-at "\\<for\\>[^_]")))
(goto-char (1+ containing-sexp))
(c-forward-syntactic-ws indent-point)
(c-beginning-of-statement-1 containing-sexp)
(if (eq char-before-ip ?\ (c-add-syntax 'statement (point))
(c-add-syntax 'statement-cont (point))
))
((and c-method-key
(eq (char-after containing-sexp) ?\[)
(save-excursion
(goto-char (1- containing-sexp))
(c-backward-syntactic-ws (c-point 'bod))
(if (not (looking-at c-symbol-key))
(c-add-syntax 'objc-method-call-cont containing-sexp))
)))
((save-excursion
(goto-char (1+ containing-sexp))
(skip-chars-forward " \t")
(not (eolp)))
(goto-char containing-sexp)
(setq placeholder (c-point 'boi))
(when (and (c-safe (backward-up-list 1) t)
(> (point) placeholder))
(forward-char)
(skip-chars-forward " \t")
(setq placeholder (point)))
(c-add-syntax 'arglist-cont-nonempty placeholder))
(t (c-beginning-of-statement-1 containing-sexp)
(forward-char 1)
(c-forward-syntactic-ws indent-point)
(c-add-syntax 'arglist-cont (c-point 'boi)))
))
((and c-baseclass-key
(save-excursion
(goto-char indent-point)
(skip-chars-forward " \t")
(looking-at c-baseclass-key)))
(goto-char indent-point)
(skip-chars-forward " \t")
(cond
((eq char-after-ip ?:)
(c-backward-syntactic-ws lim)
(c-add-syntax 'inher-intro (c-point 'boi)))
((eq char-before-ip ?:)
(c-add-syntax 'inher-intro (c-point 'boi)))
(t
(c-beginning-of-inheritance-list lim)
(c-add-syntax 'inher-cont (point))
)))
((setq special-brace-list
(or (and c-special-brace-lists
(save-excursion
(goto-char containing-sexp)
(c-looking-at-special-brace-list)))
(c-inside-bracelist-p containing-sexp state)))
(cond
((and (consp special-brace-list)
(save-excursion
(goto-char containing-sexp)
(eq (char-after) ?\())
(eq char-after-ip (car (cdr special-brace-list))))
(goto-char (car (car special-brace-list)))
(skip-chars-backward " \t")
(if (and (bolp)
(assoc 'statement-cont
(setq placeholder (c-guess-basic-syntax))))
(setq syntax placeholder)
(c-beginning-of-statement-1 lim)
(c-forward-token-1 0)
(if (looking-at "typedef\\>") (c-forward-token-1 1))
(c-add-syntax 'brace-list-open (c-point 'boi))))
((if (consp special-brace-list)
(progn
(goto-char (car (car special-brace-list)))
(save-excursion
(goto-char indent-point)
(back-to-indentation)
(or
(and (eq (char-after) ?\))
(eq (1+ (point)) (cdr (car special-brace-list))))
(and (eq (char-after) (cdr (cdr special-brace-list)))
(= (c-forward-token-1) 0)
(eq (1+ (point)) (cdr (car special-brace-list)))))))
(and (eq char-after-ip ?})
(c-safe (progn (forward-char 1)
(c-backward-sexp 1)
t))
(= (point) containing-sexp)))
(c-add-syntax 'brace-list-close (c-point 'boi)))
(t
(if (consp special-brace-list)
(progn
(goto-char (car (car special-brace-list)))
(c-forward-token-1 1 nil indent-point))
(goto-char containing-sexp))
(forward-char)
(let ((start (point)))
(c-forward-syntactic-ws indent-point)
(goto-char (max start (c-point 'bol))))
(skip-chars-forward " \t\n\r" indent-point)
(cond
((= (point) indent-point)
(goto-char containing-sexp)
(c-add-syntax 'brace-list-intro (c-point 'boi))
) (t (if (or (eq char-after-ip ?{)
(and c-special-brace-lists
(save-excursion
(goto-char indent-point)
(c-forward-syntactic-ws (c-point 'eol))
(c-looking-at-special-brace-list (point)))))
(c-add-syntax 'brace-entry-open (point))
(c-add-syntax 'brace-list-entry (point))
)) )))) ((and (not (memq char-before-ip '(?\ (or (not (eq char-before-ip ?}))
(c-looking-at-inexpr-block-backward containing-sexp))
(> (point)
(save-excursion
(c-beginning-of-statement-1 containing-sexp)
(c-forward-syntactic-ws)
(setq placeholder (point))))
(/= placeholder containing-sexp))
(goto-char indent-point)
(skip-chars-forward " \t")
(let ((after-cond-placeholder
(save-excursion
(goto-char placeholder)
(if (and c-conditional-key (looking-at c-conditional-key))
(progn
(c-safe (c-skip-conditional))
(c-forward-syntactic-ws)
(if (eq (char-after) ?\ (progn
(forward-char 1)
(c-forward-syntactic-ws)))
(point))
nil))))
(cond
((and after-cond-placeholder
(>= after-cond-placeholder indent-point))
(goto-char placeholder)
(if (eq char-after-ip ?{)
(c-add-syntax 'substatement-open (c-point 'boi))
(c-add-syntax 'substatement (c-point 'boi))))
((setq special-brace-list
(or (and c-special-brace-lists
(c-looking-at-special-brace-list))
(eq char-after-ip ?{)))
(cond
((save-excursion
(goto-char indent-point)
(skip-chars-forward " \t{")
(let ((decl (c-search-uplist-for-classkey (c-parse-state))))
(and decl
(setq placeholder (aref decl 0)))
))
(c-add-syntax 'class-open placeholder))
((or (consp special-brace-list)
(save-excursion
(goto-char placeholder)
(looking-at "\\<enum\\>"))
(save-excursion
(goto-char indent-point)
(while (and (> (point) placeholder)
(= (c-backward-token-1 1 t) 0)
(/= (char-after) ?=)))
(eq (char-after) ?=)))
(goto-char indent-point)
(c-beginning-of-closest-statement)
(c-add-syntax 'statement-cont (c-point 'boi)))
((and (c-major-mode-is 'pike-mode)
(progn
(goto-char indent-point)
(not (c-looking-at-bos))))
(c-beginning-of-closest-statement)
(c-add-syntax 'defun-open (c-point 'boi)))
(t
(goto-char placeholder)
(c-add-syntax 'statement-cont (c-point 'boi))
(c-add-syntax 'block-open))
))
((looking-at "<<\\|>>")
(goto-char placeholder)
(and after-cond-placeholder
(goto-char after-cond-placeholder))
(while (and (re-search-forward "<<\\|>>" indent-point 'move)
(c-in-literal placeholder)))
(if (/= (point) indent-point)
(c-add-syntax 'stream-op (c-point 'boi))
(c-backward-syntactic-ws lim)
(c-add-syntax 'statement-cont (c-point 'boi))))
(t
(c-beginning-of-statement-1 after-cond-placeholder)
(goto-char (or (and after-cond-placeholder
(max after-cond-placeholder (point)))
(point)))
(c-add-syntax 'statement-cont (point)))
)))
((looking-at "\\<else\\>[^_]")
(c-backward-to-start-of-if containing-sexp)
(c-add-syntax 'else-clause (c-point 'boi)))
((progn
(goto-char indent-point)
(skip-chars-forward " \t")
(and (looking-at "while\\b[^_]")
(save-excursion
(c-backward-to-start-of-do containing-sexp)
(setq placeholder (point))
(looking-at "do\\b[^_]"))
))
(goto-char placeholder)
(c-add-syntax 'do-while-closure (c-point 'boi)))
((save-excursion
(and (cond ((c-major-mode-is 'c++-mode)
(looking-at "\\<catch\\>[^_]"))
((c-major-mode-is 'java-mode)
(looking-at "\\<\\(catch\\|finally\\)\\>[^_]")))
(c-safe (c-backward-sexp) t)
(eq (char-after) ?{)
(c-safe (c-backward-sexp) t)
(if (eq (char-after) ?\()
(c-safe (c-backward-sexp) t)
t)
(looking-at "\\<\\(try\\|catch\\)\\>[^_]")
(setq placeholder (c-point 'boi))))
(c-add-syntax 'catch-clause placeholder))
((looking-at c-switch-label-key)
(goto-char containing-sexp)
(if (/= (point) (c-point 'boi))
(c-forward-sexp -1))
(c-add-syntax 'case-label (c-point 'boi)))
((looking-at c-label-key)
(goto-char containing-sexp)
(if (/= (point) (c-point 'boi))
(c-forward-sexp -1))
(c-add-syntax 'label (c-point 'boi)))
((eq char-after-ip ?})
(let* ((lim (c-safe-position containing-sexp fullstate))
(relpos (save-excursion
(goto-char containing-sexp)
(if (/= (point) (c-point 'boi))
(c-beginning-of-statement-1 lim))
(c-point 'boi))))
(cond
((save-excursion
(goto-char containing-sexp)
(setq placeholder (c-looking-at-inexpr-block)))
(setq tmpsymbol (if (eq (car placeholder) 'inlambda)
'inline-close
'block-close))
(goto-char containing-sexp)
(back-to-indentation)
(if (= containing-sexp (point))
(c-add-syntax tmpsymbol (point))
(goto-char (cdr placeholder))
(back-to-indentation)
(c-add-syntax tmpsymbol (point))
(if (/= (point) (cdr placeholder))
(c-add-syntax (car placeholder)))))
((progn
(goto-char containing-sexp)
(setq placeholder (c-search-uplist-for-classkey state)))
(goto-char (aref placeholder 0))
(if (looking-at (concat c-extra-toplevel-key "[^_]"))
(c-add-syntax 'defun-close relpos)
(c-add-syntax 'inline-close relpos)))
((and (not inenclosing-p)
(c-most-enclosing-brace state)
(or (not (c-major-mode-is 'pike-mode))
(or (c-looking-at-bos)
(progn
(c-beginning-of-statement-1)
(looking-at c-conditional-key)))))
(c-add-syntax 'block-close relpos))
(t
(save-restriction
(narrow-to-region (point-min) indent-point)
(let ((decl (c-search-uplist-for-classkey (c-parse-state))))
(if decl
(c-add-class-syntax 'class-close decl)
(c-add-syntax 'defun-close relpos)))))
)))
(t
(goto-char containing-sexp)
(forward-char 1)
(c-forward-syntactic-ws indent-point)
(while (or (c-skip-case-statement-forward fullstate indent-point)
(and (looking-at c-switch-label-key)
(not inswitch-p)))
(setq inswitch-p t))
(while (and (looking-at c-label-key)
(goto-char (match-end 0)))
(c-forward-syntactic-ws indent-point))
(cond
((and inswitch-p
(progn
(goto-char indent-point)
(c-beginning-of-statement-1 containing-sexp)
(setq placeholder (point))
(beginning-of-line)
(when (re-search-forward c-switch-label-key
(max placeholder (c-point 'eol)) t)
(setq placeholder (match-beginning 0)))))
(goto-char indent-point)
(skip-chars-forward " \t")
(if (eq (char-after) ?{)
(c-add-syntax 'statement-case-open placeholder)
(c-add-syntax 'statement-case-intro placeholder)))
((eq char-before-ip ?,)
(goto-char indent-point)
(c-beginning-of-closest-statement)
(c-add-syntax 'statement-cont (c-point 'boi)))
((or (and (memq char-before-ip '(?: ??))
(save-excursion
(goto-char indent-point)
(c-backward-syntactic-ws lim)
(back-to-indentation)
(not (looking-at c-label-key))))
(and (memq char-after-ip '(?: ??))
(save-excursion
(goto-char indent-point)
(skip-chars-forward " \t")
(not (looking-at "::")))))
(goto-char indent-point)
(c-beginning-of-closest-statement)
(c-add-syntax 'statement-cont (c-point 'boi)))
((< (point) indent-point)
(let ((safepos (c-most-enclosing-brace fullstate))
relpos done)
(goto-char indent-point)
(c-beginning-of-statement-1 safepos)
(if (and (eq (char-after) ?{)
(save-excursion
(c-backward-syntactic-ws safepos)
(not (eq (char-before) ?\ (c-beginning-of-statement-1 safepos))
(if (and inswitch-p
(looking-at c-switch-label-key))
(progn
(goto-char (match-end 0))
(c-forward-syntactic-ws)))
(setq relpos (c-point 'boi))
(while (and (not done)
(<= safepos (point))
(/= relpos (point)))
(c-beginning-of-statement-1 safepos)
(if (= relpos (c-point 'boi))
(setq done t))
(setq relpos (c-point 'boi)))
(c-add-syntax 'statement relpos)
(if (eq char-after-ip ?{)
(c-add-syntax 'block-open))))
((setq placeholder
(save-excursion
(goto-char containing-sexp)
(c-looking-at-inexpr-block)))
(goto-char containing-sexp)
(back-to-indentation)
(let ((block-intro (if (eq (car placeholder) 'inlambda)
'defun-block-intro
'statement-block-intro)))
(if (= containing-sexp (point))
(c-add-syntax block-intro (point))
(goto-char (cdr placeholder))
(back-to-indentation)
(c-add-syntax block-intro (point))
(if (/= (point) (cdr placeholder))
(c-add-syntax (car placeholder)))))
(if (eq char-after-ip ?{)
(c-add-syntax 'block-open)))
((save-excursion
(save-restriction
(widen)
(goto-char containing-sexp)
(c-narrow-out-enclosing-class state containing-sexp)
(not (c-most-enclosing-brace state))))
(goto-char containing-sexp)
(if (/= (point) (c-point 'boi))
(progn
(c-backward-syntactic-ws)
(c-safe (c-forward-sexp (if (eq (char-before) ?\))
-1 -2)))
(c-beginning-of-statement-1)
))
(c-add-syntax 'defun-block-intro (c-point 'boi)))
((and (c-major-mode-is 'pike-mode)
(progn
(goto-char containing-sexp)
(and (not (c-looking-at-bos))
(progn
(c-beginning-of-statement-1)
(not (looking-at c-conditional-key))))))
(c-add-syntax 'defun-block-intro (c-point 'boi)))
(t (goto-char containing-sexp)
(if (/= (point) (c-point 'boi))
(c-beginning-of-statement-1
(if (= (point) lim)
(c-safe-position (point) state) lim)))
(c-add-syntax 'statement-block-intro (c-point 'boi))
(if (eq char-after-ip ?{)
(c-add-syntax 'block-open)))
))
)
(goto-char indent-point)
(skip-chars-forward " \t")
(cond
((and (looking-at c-comment-start-regexp)
(/= (c-forward-token-1 0 nil (c-point 'eol)) 0))
(c-add-syntax 'comment-intro))
((and (c-major-mode-is 'c++-mode)
(looking-at c-C++-friend-key))
(c-add-syntax 'friend))
((and (eq literal 'pound)
(= (save-excursion
(c-beginning-of-macro lim)
(setq placeholder (point)))
(c-point 'boi))
(not (and (c-major-mode-is 'pike-mode)
(eq (char-after (1+ placeholder)) ?\"))))
(c-add-syntax 'cpp-macro)))
;; return the syntax
syntax))))
(defun c-echo-parsing-error (&optional quiet)
(when (and c-parsing-error (not quiet))
(message "%s" c-parsing-error)
(ding))
c-parsing-error)
(defun c-shift-line-indentation (shift-amt)
(let ((pos (- (point-max) (point)))
(col (current-indentation)))
(if (zerop shift-amt)
nil
(delete-region (c-point 'bol) (c-point 'boi))
(beginning-of-line)
(indent-to (+ col shift-amt)))
(if (< (point) (c-point 'boi))
(back-to-indentation)
;; If initial point was within line's indentation, position after
;; the indentation. Else stay at same point in text.
(if (> (- (point-max) pos) (point))
(goto-char (- (point-max) pos))))))
(defun c-evaluate-offset (offset langelem symbol)
;; offset can be a number, a function, a variable, a list, or one of
;; the symbols + or -
(cond
((eq offset '+) c-basic-offset)
((eq offset '-) (- c-basic-offset))
((eq offset '++) (* 2 c-basic-offset))
((eq offset '--) (* 2 (- c-basic-offset)))
((eq offset '*) (/ c-basic-offset 2))
((eq offset '/) (/ (- c-basic-offset) 2))
((numberp offset) offset)
((functionp offset) (c-evaluate-offset
(funcall offset langelem) langelem symbol))
((vectorp offset) offset)
((null offset) nil)
((listp offset)
(let (done)
(while (and (not done) offset)
(setq done (c-evaluate-offset (car offset) langelem symbol)
offset (cdr offset)))
(if (not done)
(if c-strict-syntax-p
(error "No offset found for syntactic symbol %s" symbol))
done)))
(t (symbol-value offset))
))
(defun c-get-offset (langelem)
;; Get offset from LANGELEM which is a cons cell of the form:
;; (SYMBOL . RELPOS). The symbol is matched against
;; c-offsets-alist and the offset found there is either returned,
;; or added to the indentation at RELPOS. If RELPOS is nil, then
;; the offset is simply returned.
(let* ((symbol (car langelem))
(relpos (cdr langelem))
(match (assq symbol c-offsets-alist))
(offset (cdr-safe match)))
(if (not match)
(if c-strict-syntax-p
(error "No offset found for syntactic symbol %s" symbol)
(setq offset 0
relpos 0))
(setq offset (c-evaluate-offset offset langelem symbol)))
(if (vectorp offset)
offset
(+ (if (and relpos
(< relpos (c-point 'bol)))
(save-excursion
(goto-char relpos)
(current-column))
0)
(or (and (numberp offset) offset)
(and (symbolp offset) (symbol-value offset))
0)))
))
(defun c-get-syntactic-indentation (langelems)
;; Apply c-get-offset to a list of langelem cells to get the total
;; syntactic indentation. Special treatment is needed for vectors
;; containing absolute columns.
(let ((indent 0))
(catch 'done
(while langelems
(let ((res (c-get-offset (car langelems))))
(if (vectorp res)
(throw 'done (elt res 0))
(setq indent (+ indent res)
langelems (cdr langelems)))))
indent)))
(defun c-indent-line (&optional syntax quiet)
;; Indent the current line according to the syntactic context, if
;; c-syntactic-indentation is non-nil. Optional SYNTAX is the
;; syntactic information for the current line. Be silent about
;; syntactic errors if the optional argument QUIET is non-nil.
;; Returns the amount of indentation change (in columns).
(let (shift-amt)
(if c-syntactic-indentation
(setq c-parsing-error
(or (let* ((c-parsing-error nil)
(c-syntactic-context (or syntax
c-syntactic-context
(c-guess-basic-syntax)))
(indent (c-get-syntactic-indentation c-syntactic-context)))
(and (not (c-echo-parsing-error quiet))
c-echo-syntactic-information-p
(message "syntax: %s, indent: %d"
c-syntactic-context indent))
(setq shift-amt (- indent (current-indentation)))
(c-shift-line-indentation shift-amt)
(run-hooks 'c-special-indent-hook)
c-parsing-error)
c-parsing-error))
(let ((indent 0))
(save-excursion
(while (and (= (forward-line -1) 0)
(if (looking-at "\\s-*$")
t
(back-to-indentation)
(setq indent (current-indentation))
nil))))
(setq shift-amt (- indent (current-indentation)))
(c-shift-line-indentation shift-amt)))
shift-amt))
(defun c-show-syntactic-information (arg)
"Show syntactic information for current line.
With universal argument, inserts the analysis as a comment on that line."
(interactive "P")
(let ((syntax (c-guess-basic-syntax)))
(if (not (consp arg))
(message "syntactic analysis: %s" syntax)
(indent-for-comment)
(insert (format "%s" syntax))
))
(c-keep-region-active))
(defun c-syntactic-information-on-region (from to)
"Inserts a comment with the syntactic analysis on every line in the region."
(interactive "*r")
(save-excursion
(save-restriction
(narrow-to-region from to)
(goto-char (point-min))
(while (not (eobp))
(c-show-syntactic-information '(0))
(forward-line)))))
(cc-provide 'cc-engine)
;;; cc-engine.el ends here