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| -rw-r--r-- | etc/NEWS | 11 |
1 files changed, 10 insertions, 1 deletions
@@ -1140,10 +1140,19 @@ file. *** The commands to evaluate Lisp expressions, such as C-M-x in Lisp modes, C-j in Lisp Interaction mode, and M-:, now bind the variables -print-level, print-length, and debug-on-error based on the +print-level, print-length, and debug-on-error based on the new customizable variables eval-expression-print-level, eval-expression-print-length, and eval-expression-debug-on-error. +The default values for the first two of these variables are 12 and 4 +respectively, which means that `eval-expression' now prints at most +the first 12 members of a list and at most 4 nesting levels deep (if +the list is longer or deeper than that, an ellipsis `...' is +printed). + +The default value of eval-expression-debug-on-error is t, so any error +during evaluation produces a backtrace. + *** The function `eval-defun' (M-C-x) now loads Edebug and instruments code when called with a prefix argument. |