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-rw-r--r--lisp/emacs-lisp/lisp-mode.el26
1 files changed, 25 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/lisp-mode.el b/lisp/emacs-lisp/lisp-mode.el
index 4e5b1a7e4ff..afb7cbd1dd7 100644
--- a/lisp/emacs-lisp/lisp-mode.el
+++ b/lisp/emacs-lisp/lisp-mode.el
@@ -517,6 +517,16 @@ This will generate compile-time constants from BINDINGS."
(defvar lisp-cl-font-lock-keywords lisp-cl-font-lock-keywords-1
"Default expressions to highlight in Lisp modes.")
+;; Support backtrace mode.
+(defconst lisp-el-font-lock-keywords-for-backtraces lisp-el-font-lock-keywords
+ "Default highlighting from Emacs Lisp mod used in Backtrace mode.")
+(defconst lisp-el-font-lock-keywords-for-backtraces-1 lisp-el-font-lock-keywords-1
+ "Subdued highlighting from Emacs Lisp mode used in Backtrace mode.")
+(defconst lisp-el-font-lock-keywords-for-backtraces-2
+ (remove (assoc 'lisp--match-hidden-arg lisp-el-font-lock-keywords-2)
+ lisp-el-font-lock-keywords-2)
+ "Gaudy highlighting from Emacs Lisp mode used in Backtrace mode.")
+
(defun lisp-string-in-doc-position-p (listbeg startpos)
"Return true if a doc string may occur at STARTPOS inside a list.
LISTBEG is the position of the start of the innermost list
@@ -1196,7 +1206,21 @@ ENDPOS is encountered."
(if endpos endpos
;; Get error now if we don't have a complete sexp
;; after point.
- (save-excursion (forward-sexp 1) (point)))))
+ (save-excursion
+ (let ((eol (line-end-position)))
+ (forward-sexp 1)
+ ;; We actually look for a sexp which ends
+ ;; after the current line so that we properly
+ ;; indent things like #s(...). This might not
+ ;; be needed if Bug#15998 is fixed.
+ (condition-case ()
+ (while (and (< (point) eol) (not (eobp)))
+ (forward-sexp 1))
+ ;; But don't signal an error for incomplete
+ ;; sexps following the first complete sexp
+ ;; after point.
+ (scan-error nil)))
+ (point)))))
(save-excursion
(while (let ((indent (lisp-indent-calc-next parse-state))
(ppss (lisp-indent-state-ppss parse-state)))