diff options
| -rw-r--r-- | etc/NEWS | 19 | ||||
| -rw-r--r-- | src/xdisp.c | 8 |
2 files changed, 14 insertions, 13 deletions
@@ -334,18 +334,19 @@ Use something like 'M-x shell RET ssh <host> RET' instead. * Changes in Emacs 29.1 --- -** Emacs is now capable of editing files with very long lines. -The display of long lines has been optimized, and Emacs should no -longer choke when a buffer on display contains long lines. The -variable 'long-line-threshold' controls whether and when these display +** Emacs is now capable of editing files with arbitrarily long lines. +The display of long lines has been optimized, and Emacs no longer +chokes when a buffer on display contains long lines. The variable +'long-line-threshold' controls whether and when these display optimizations are in effect. If you still experience slowdowns while editing files with long lines, -this is due either to the current major mode or to one of the enabled -minor modes. Try disabling the minor modes, or turn on 'so-long-mode' -or 'so-long-minor-mode', or visit the file with find-file-literally' -instead of the usual 'C-x C-f'. Another reason for slowdown could be -line truncation, which you can turn off with 'C-x x t'. +this is due to line truncation, or to one of the enabled minor modes, +or to the current major mode. Try turning off line truncation with +'C-x x t', or try disabling all known slow minor modes with 'M-x +so-long-minor-mode', or try disabling all known slow minor modes and +the major mode with 'M-x so-long-mode', or visit the file with 'M-x +find-file-literally' instead of the usual 'C-x C-f'. Note that the display optimizations in these cases may cause the buffer to be occasionally mis-fontified. diff --git a/src/xdisp.c b/src/xdisp.c index 3ef3c0d3796..e13d68eab9d 100644 --- a/src/xdisp.c +++ b/src/xdisp.c @@ -36656,10 +36656,10 @@ fontify a region starting at POS in the current buffer, and give fontified regions the property `fontified' with a non-nil value. Note that, when the buffer contains one or more lines whose length is -above `long-line-threshold', the narrowing of the buffer is locked -(see `narrow-to-region'), and these functions only have access to a -small portion of the buffer around POS and cannot use `widen' to gain -access to other portions of buffer text. */); +above `long-line-threshold', these functions only have access to a +small portion of the buffer around POS, and cannot use `widen' to gain +access to other portions of buffer text because the narrowing of the +buffer is locked (see `narrow-to-region'). */); Vfontification_functions = Qnil; Fmake_variable_buffer_local (Qfontification_functions); |