* lisp/progmodes/python.el
(python-shell-font-lock-comint-output-filter-function): Avoid writing
a newline to the font lock buffer when receiving an empty string.
* etc/images/tabs/left-arrow.xpm:
* etc/images/tabs/right-arrow.xpm: New images.
* lisp/tab-line.el (tab-line-left-map, tab-line-right-map): New keymaps.
(tab-line-left-button, tab-line-right-button): New variables.
(tab-line-tab-name-function): Turn defvar into defcustom.
(tab-line-tab-name-buffer): New function.
(tab-line-tab-name-truncated-buffer): Rename from tab-line-tab-name.
(tab-line-tabs-limit): Default to nil.
(tab-line-tabs): Behavior depends on tab-line-tabs-limit.
(tab-line-format): Use window-parameter tab-line-hscroll.
Add left/right buttons.
(tab-line-hscroll): New function.
(tab-line-hscroll-right, tab-line-hscroll-left): New commands
bound to mouse-wheel. Rebind tab-switching commands to mouse-wheel
with Ctrl-modifier.
* lisp/tab-bar.el (require): Require seq when compiling to avoid a
compilation warning. The function it uses is autoloaded, but
autoloads aren't loaded when this is built (on "make bootstrap").
* lisp/emacs-lisp/edebug.el (edebug-eval-last-sexp): Make the zero
prefix work analogously to in eval-last-sexp (bug#28895).
(edebug-eval-print-last-sexp): Ditto.
Based on suggestions from Mattias Engdegård.
* lisp/vc/vc-git.el (vc-git--make-button-text): New function to
generate text for stash button.
(vc-git-make-stash-button): Show stash counts. Delete and recreate
button when toggling.
(vc-git-dir-extra-headers): Pass counts to vc-git-make-stash-button.
Treat stash count <= vc-git-show-stash as equivalent to showing entire
list.
* lisp/textmodes/reftex-vars.el (reftex-ref-style-alist): Move
entry for \Ref from "Varioref" into "Default" as this macro is
part of LaTeX 2019-10-01 kernel.
Rearrange entries for "Varioref".
Problem reported by Richard Copley (Bug#37852).
This patch causes the problem to not occur if one uses plain
‘configure’. The problem can still occur if with ‘configure
--enable-gcc-warnings’, so a further fix may be needed.
* configure.ac (GNULIB_PORTCHECK, _FORTIFY_SOURCE):
Define these only with an explicit --enable-gcc-warnings.
* lisp/vc/vc-git.el: Move cl-lib require outside 'eval-when-compile'.
* lisp/vc/vc-git.el (vc-git-show-stash):New user option.
(vc-git-make-stash-button): Create button that allows hiding the stash
list.
(vc-git-dir-extra-headers): Split stash list into hideable and
non-hideable parts depending on value of vc-git-show-stash. Add
button to toggle visibility of hideable part.
* etc/NEWS: Announce it.
* src/keyboard.c (help_echo_substitute_command_keys): New function.
(help_echo_echo, parse_menu_item): Use it.
(syms_of_keyboard): Define Qhelp_echo_inhibit_substitution.
* doc/lispref/text.texi (Special Properties), etc/NEWS: Document
the effect of 'help-echo-inhibit-substitution'.
* lisp/tab-line.el: Bind mouse-4/mouse-5, wheel-up/wheel-down
globally to [tab-line].
(tab-line-tab-map): Remove local bindings of mouse-4/mouse-5.
(tab-line-new-tab, tab-line-switch-to-prev-tab)
(tab-line-switch-to-next-tab, tab-line-close-tab):
Turn commands into mouse-free (can be used without mouse).
* doc/lispref/edebug.texi (Breakpoints): Document this.
* lisp/emacs-lisp/edebug.el (edebug-disabled-breakpoint): New face
(bug#23472).
(edebug-enabled-breakpoint): Rename.
(edebug--overlay-breakpoints): Use the new face.
(edebug-toggle-disable-breakpoint): New command and keystroke.
* lisp/tab-bar.el (tab-bar--current-tab-index)
(tab-bar--tab-index, tab-bar--tab-index-by-name):
Use seq-position.
(tab-bar-select-tab, tab-bar-new-tab, tab-bar-close-tab)
(tab-bar-close-other-tabs, tab-bar-rename-tab)
(tab-bar-list-execute): Call force-mode-line-update
unconditionally independent from tab-bar-mode.
(tab-bar-rename-tab, tab-bar-rename-tab-by-name):
Use read-from-minibuffer instead of read-string
to be able to enter empty string.
This fixes bug #18134.
* lisp/progmodes/cc-engine.el (c-crosses-statement-barrier-p): Give a limit
to the c-backward-syntactic-ws which is searching for a virtual semicolon. In
the main loop, Use c-forward-syntactic-ws to skip blocks of comments.
* lisp/tab-bar.el (tab-bar-rename-tab, tab-bar-rename-tab-by-name):
Provide default value for read-string.
(tab-bar-select-tab-by-name): Alias for tab-bar-switch-to-tab.
* lisp/frame.el (set-frame-name): Provide default value for
read-string in interactive spec.
* lisp/cus-start.el (tab-bar-position): Use choice instead of boolean.
* lisp/emacs-lisp/edebug.el (edebug--recursive-edit): Bind
minor-mode-overriding-map-alist to avoid other minor modes hiding the
edebug commands (bug#11018).
* doc/misc/efaq.texi (Difference between Emacs and XEmacs): Update
section to reflect the current state of affairs. XEmacs is not
actively developed and is lacking many important features of Emacs.
* lisp/eshell/eshell.el (eshell-buffer-name, eshell): Improve doc
strings, by clarifying how buffers are named. Also refer users to the
Info manual. (Bug#37178)
