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-rw-r--r--lisp/emacs-lisp/pp.el33
1 files changed, 20 insertions, 13 deletions
diff --git a/lisp/emacs-lisp/pp.el b/lisp/emacs-lisp/pp.el
index 169f11b1db6..e4fa4426c03 100644
--- a/lisp/emacs-lisp/pp.el
+++ b/lisp/emacs-lisp/pp.el
@@ -308,17 +308,24 @@ can handle, whenever this is possible.
Uses the pretty-printing code specified in `pp-default-function'.
Output stream is STREAM, or value of `standard-output' (which see)."
- (cond
- ((and (eq (or stream standard-output) (current-buffer))
- ;; Make sure the current buffer is setup sanely.
- (eq (syntax-table) emacs-lisp-mode-syntax-table)
- (eq indent-line-function #'lisp-indent-line))
- ;; Skip the buffer->string->buffer middle man.
- (funcall pp-default-function object)
- ;; Preserve old behavior of (usually) finishing with a newline.
- (unless (bolp) (insert "\n")))
- (t
- (princ (pp-to-string object) (or stream standard-output)))))
+ (let ((stream (or stream standard-output)))
+ (cond
+ ((and (eq stream (current-buffer))
+ ;; Make sure the current buffer is setup sanely.
+ (eq (syntax-table) emacs-lisp-mode-syntax-table)
+ (eq indent-line-function #'lisp-indent-line))
+ ;; Skip the buffer->string->buffer middle man.
+ (funcall pp-default-function object)
+ ;; Preserve old behavior of (usually) finishing with a newline.
+ (unless (bolp) (insert "\n")))
+ (t
+ (save-current-buffer
+ (when (bufferp stream) (set-buffer stream))
+ (let ((begin (point))
+ (cols (current-column)))
+ (princ (pp-to-string object) (or stream standard-output))
+ (when (and (> cols 0) (bufferp stream))
+ (indent-rigidly begin (point) cols))))))))
;;;###autoload
(defun pp-display-expression (expression out-buffer-name &optional lisp)
@@ -484,8 +491,8 @@ the bounds of a region containing Lisp code to pretty-print."
(cons (cond
((consp (cdr sexp))
(let ((head (car sexp)))
- (if-let (((null (cddr sexp)))
- (syntax-entry (assq head pp--quoting-syntaxes)))
+ (if-let* (((null (cddr sexp)))
+ (syntax-entry (assq head pp--quoting-syntaxes)))
(progn
(insert (cdr syntax-entry))
(pp--insert-lisp (cadr sexp)))