I'm sorry, but I would like to revert my following fix: "Enhance Python font-lock to support multilines" commit 4915ca5dd4245a909c046e6691e8d4a1919890c8 I have found that there are performance issues when editing a large file. The issue can be reproduced as follows: 1. emacs -Q 2. Open large Python file (e.g. turtle.py in Python) 3. Near the top of the buffer, enter open paren and some characters. The above commit extends the region to be font-locked using `python-nav-end-of-statement'. However, if there are unbalanced parens, it may move point to the end of the buffer. This causes almost the entire buffer to be font-locked, which is not acceptable for large files. Attached is a patch to revert the commit in emacs-29 branch. Best Regards, -- In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo version 1.16.0, Xaw scroll bars) of 2023-05-27 built on ubuntu Repository revision: 1eb5faa26113afe5895955a74594e3d7cf6ffe98 Repository branch: master System Description: Ubuntu 22.04.2 LTS Configured features: ACL CAIRO FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG LIBSELINUX LIBXML2 MODULES NOTIFY INOTIFY PDUMPER PNG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER X11 XDBE XIM XPM LUCID ZLIB Important settings: value of $LANG: en_US.UTF-8 locale-coding-system: utf-8-unix Major mode: Lisp Interaction Minor modes in effect: tooltip-mode: t global-eldoc-mode: t eldoc-mode: t show-paren-mode: t electric-indent-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t line-number-mode: t indent-tabs-mode: t transient-mark-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t Load-path shadows: None found. Features: (shadow sort mail-extr emacsbug message mailcap yank-media puny dired dired-loaddefs rfc822 mml mml-sec password-cache epa derived epg rfc6068 epg-config gnus-util text-property-search time-date subr-x mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader cl-loaddefs cl-lib sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils term/screen term/xterm xterm byte-opt gv bytecomp byte-compile rmc iso-transl tooltip cconv eldoc paren electric uniquify ediff-hook vc-hooks lisp-float-type elisp-mode mwheel term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors frame minibuffer nadvice seq simple cl-generic indonesian philippine cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite emoji-zwj charscript charprop case-table epa-hook jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button loaddefs theme-loaddefs faces cus-face macroexp files window text-properties overlay sha1 md5 base64 format env code-pages mule custom widget keymap hashtable-print-readable backquote threads inotify dynamic-setting system-font-setting font-render-setting cairo x-toolkit x multi-tty make-network-process emacs) Memory information: ((conses 16 47140 9068) (symbols 48 5843 0) (strings 32 15000 1957) (string-bytes 1 423096) (vectors 16 8304) (vector-slots 8 106018 9640) (floats 8 25 10769) (intervals 56 300 2) (buffers 984 11))
0001-Revert-Enhance-Python-font-lock-to-support-multiline.patch
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