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authorEli Zaretskii <eliz@gnu.org>2016-03-26 10:17:12 +0300
committerEli Zaretskii <eliz@gnu.org>2016-03-26 10:17:12 +0300
commit8ee4c52abc98e6522d812a29cfe57ffbdeb98144 (patch)
tree460fdd7e8c21f5b2e2d044006808fdcf05f6253d /doc/emacs
parentfb9a62c9c454df1a5c24b76b5d17ac13721f04d2 (diff)
Improve documentatuon of 'truncate-partial-width-windows'
* src/xdisp.c (syms_of_xdisp) <truncate-partial-width-windows>: Clarify in the doc string how the width of partial-width windows is computed for the purposes of truncation decision. (Bug#4338) * doc/emacs/windows.texi (Split Window): Clarify how the width of windows is calculated for the purposes of truncation decision. * doc/emacs/display.texi (Line Truncation): Remove a redundant index entry.
Diffstat (limited to 'doc/emacs')
-rw-r--r--doc/emacs/display.texi1
-rw-r--r--doc/emacs/windows.texi12
2 files changed, 8 insertions, 5 deletions
diff --git a/doc/emacs/display.texi b/doc/emacs/display.texi
index c8987c279c..01f899f1c0 100644
--- a/doc/emacs/display.texi
+++ b/doc/emacs/display.texi
@@ -1601,7 +1601,6 @@ screen lines. Setting the variable @code{truncate-lines} in any way
makes it local to the current buffer; until that time, the default
value, which is normally @code{nil}, is in effect.
-@vindex truncate-partial-width-windows
If a split window becomes too narrow, Emacs may automatically enable
line truncation. @xref{Split Window}, for the variable
@code{truncate-partial-width-windows} which controls this.
diff --git a/doc/emacs/windows.texi b/doc/emacs/windows.texi
index 7587f885a2..702963f75c 100644
--- a/doc/emacs/windows.texi
+++ b/doc/emacs/windows.texi
@@ -117,10 +117,14 @@ variable @code{truncate-lines} (@pxref{Line Truncation}); it is
instead controlled by the variable
@code{truncate-partial-width-windows}. If the value of this variable
is a positive integer (the default is 50), that specifies the minimum
-width for a partial-width window before automatic line truncation
-occurs; if the value is @code{nil}, automatic line truncation is
-disabled; and for any other non-@code{nil} value, Emacs truncates
-lines in every partial-width window regardless of its width.
+total width for a partial-width window before automatic line
+truncation occurs; if the value is @code{nil}, automatic line
+truncation is disabled; and for any other non-@code{nil} value, Emacs
+truncates lines in every partial-width window regardless of its width.
+The total width of a window is in column units as reported by
+@code{window-total-width} (@pxref{Window Sizes,,, elisp, The Emacs
+Lisp Reference Manual}), it includes the fringes, the continuation and
+truncation glyphs, the margins, and the scroll bar.
On text terminals, side-by-side windows are separated by a vertical
divider which is drawn using the @code{vertical-border} face.