Check if current user undoing/redoing?












3














Is there a way so that the Emacs are able to tell if the current user is undoing/redoing in the current buffer?



Here is the task I want to accomplish, I have add a hook to after-change-function, it all works out great exclusive of when I hit undo/redo this hook get called too. And this is what I want to avoid... Is there other way to get around this issue?










share|improve this question




















  • 2




    Welcome. Can you give an example of what you are trying to use this for?
    – Andrew Swann
    Dec 2 '18 at 12:04
















3














Is there a way so that the Emacs are able to tell if the current user is undoing/redoing in the current buffer?



Here is the task I want to accomplish, I have add a hook to after-change-function, it all works out great exclusive of when I hit undo/redo this hook get called too. And this is what I want to avoid... Is there other way to get around this issue?










share|improve this question




















  • 2




    Welcome. Can you give an example of what you are trying to use this for?
    – Andrew Swann
    Dec 2 '18 at 12:04














3












3








3


2





Is there a way so that the Emacs are able to tell if the current user is undoing/redoing in the current buffer?



Here is the task I want to accomplish, I have add a hook to after-change-function, it all works out great exclusive of when I hit undo/redo this hook get called too. And this is what I want to avoid... Is there other way to get around this issue?










share|improve this question















Is there a way so that the Emacs are able to tell if the current user is undoing/redoing in the current buffer?



Here is the task I want to accomplish, I have add a hook to after-change-function, it all works out great exclusive of when I hit undo/redo this hook get called too. And this is what I want to avoid... Is there other way to get around this issue?







hooks undo






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Dec 2 '18 at 14:52









Drew

46.9k462104




46.9k462104










asked Dec 2 '18 at 11:56









Jen-Chieh Shen

163




163








  • 2




    Welcome. Can you give an example of what you are trying to use this for?
    – Andrew Swann
    Dec 2 '18 at 12:04














  • 2




    Welcome. Can you give an example of what you are trying to use this for?
    – Andrew Swann
    Dec 2 '18 at 12:04








2




2




Welcome. Can you give an example of what you are trying to use this for?
– Andrew Swann
Dec 2 '18 at 12:04




Welcome. Can you give an example of what you are trying to use this for?
– Andrew Swann
Dec 2 '18 at 12:04










1 Answer
1






active

oldest

votes


















5














C-hv undo-in-progress



Documentation:
Non-nil while performing an undo.
Some change-hooks test this variable to do something different.


Bearing in mind that "redoing" is really still "undoing" in Emacs, this ought to cover all cases.






share|improve this answer





















  • Thank you! This solved the issue!
    – Jen-Chieh Shen
    Dec 2 '18 at 12:46






  • 1




    @Jen-ChiehShen : please upvote and accept the answer if it resolves the problem. Thanks!
    – Dan
    Dec 2 '18 at 12:57











Your Answer








StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "583"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2femacs.stackexchange.com%2fquestions%2f46378%2fcheck-if-current-user-undoing-redoing%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









5














C-hv undo-in-progress



Documentation:
Non-nil while performing an undo.
Some change-hooks test this variable to do something different.


Bearing in mind that "redoing" is really still "undoing" in Emacs, this ought to cover all cases.






share|improve this answer





















  • Thank you! This solved the issue!
    – Jen-Chieh Shen
    Dec 2 '18 at 12:46






  • 1




    @Jen-ChiehShen : please upvote and accept the answer if it resolves the problem. Thanks!
    – Dan
    Dec 2 '18 at 12:57
















5














C-hv undo-in-progress



Documentation:
Non-nil while performing an undo.
Some change-hooks test this variable to do something different.


Bearing in mind that "redoing" is really still "undoing" in Emacs, this ought to cover all cases.






share|improve this answer





















  • Thank you! This solved the issue!
    – Jen-Chieh Shen
    Dec 2 '18 at 12:46






  • 1




    @Jen-ChiehShen : please upvote and accept the answer if it resolves the problem. Thanks!
    – Dan
    Dec 2 '18 at 12:57














5












5








5






C-hv undo-in-progress



Documentation:
Non-nil while performing an undo.
Some change-hooks test this variable to do something different.


Bearing in mind that "redoing" is really still "undoing" in Emacs, this ought to cover all cases.






share|improve this answer












C-hv undo-in-progress



Documentation:
Non-nil while performing an undo.
Some change-hooks test this variable to do something different.


Bearing in mind that "redoing" is really still "undoing" in Emacs, this ought to cover all cases.







share|improve this answer












share|improve this answer



share|improve this answer










answered Dec 2 '18 at 12:33









phils

25.9k23566




25.9k23566












  • Thank you! This solved the issue!
    – Jen-Chieh Shen
    Dec 2 '18 at 12:46






  • 1




    @Jen-ChiehShen : please upvote and accept the answer if it resolves the problem. Thanks!
    – Dan
    Dec 2 '18 at 12:57


















  • Thank you! This solved the issue!
    – Jen-Chieh Shen
    Dec 2 '18 at 12:46






  • 1




    @Jen-ChiehShen : please upvote and accept the answer if it resolves the problem. Thanks!
    – Dan
    Dec 2 '18 at 12:57
















Thank you! This solved the issue!
– Jen-Chieh Shen
Dec 2 '18 at 12:46




Thank you! This solved the issue!
– Jen-Chieh Shen
Dec 2 '18 at 12:46




1




1




@Jen-ChiehShen : please upvote and accept the answer if it resolves the problem. Thanks!
– Dan
Dec 2 '18 at 12:57




@Jen-ChiehShen : please upvote and accept the answer if it resolves the problem. Thanks!
– Dan
Dec 2 '18 at 12:57


















draft saved

draft discarded




















































Thanks for contributing an answer to Emacs Stack Exchange!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.





Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


Please pay close attention to the following guidance:


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2femacs.stackexchange.com%2fquestions%2f46378%2fcheck-if-current-user-undoing-redoing%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

QoS: MAC-Priority for clients behind a repeater

Ивакино (Тотемский район)

Can't locate Autom4te/ChannelDefs.pm in @INC (when it definitely is there)