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author | Eli Zaretskii <eliz@gnu.org> | 2018-01-06 21:43:04 +0200 |
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committer | Eli Zaretskii <eliz@gnu.org> | 2018-01-06 21:43:04 +0200 |
commit | a5f718c4c58c821fb121196a499df01391bb7ba4 (patch) | |
tree | ecdee15996d3d953b8d35ff196aa62a672df470a /doc | |
parent | e876f5f9fb090203b77c9cc2fa0208224ac2a1be (diff) | |
download | emacs-a5f718c4c58c821fb121196a499df01391bb7ba4.tar.gz |
; * doc/lispref/text.texi (Change Hooks): Fix last change.
Diffstat (limited to 'doc')
-rw-r--r-- | doc/lispref/text.texi | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/doc/lispref/text.texi b/doc/lispref/text.texi index cd644478d4b..a004952c37c 100644 --- a/doc/lispref/text.texi +++ b/doc/lispref/text.texi @@ -5023,21 +5023,21 @@ these functions, and neither do certain internal buffer changes, such as changes in buffers created by Emacs internally for certain jobs, that should not be visible to Lisp programs. -The vast bulk of buffer changing primitives will call +The vast majority of buffer changing primitives will call @code{before-change-functions} and @code{after-change-functions} in balanced pairs, once for each change, where the arguments to these hooks exactly delimit the change being made. Yet, hook functions -should not rely on this always being the case: - -Other, complex primitives call @code{before-change-functions} once -before making changes, and then call @code{after-change-functions} -zero, one, or several times, depending on how many individual changes -the primitive is making. The arguments to +should not rely on this always being the case, because some complex +primitives call @code{before-change-functions} once before making +changes, and then call @code{after-change-functions} zero or more +times, depending on how many individual changes the primitive is +making. When that happens, the arguments to @code{before-change-functions} will enclose a region in which the individual changes are made, but won't necessarily be the minimal such -region. The arguments to each successive call of -@code{after-change-functions} will then delimit the current part of -the change exactly. +region, and the arguments to each successive call of +@code{after-change-functions} will then delimit the part of text being +changed exactly. In general, we advise to use either before- or the +after-change hooks, but not both. @defmac combine-after-change-calls body@dots{} The macro executes @var{body} normally, but arranges to call the |