在 Emacs 中使用 gdb 会破坏水平滚动

发布于 2024-10-13 03:02:33 字数 818 浏览 5 评论 0原文

我使用的Emacs版本： GNU Emacs 22.2.1（i386-redhat-linux-gnu，GTK+ 版本 2.12.9）

从 emacs 调用 gdb 会破坏 emacs 窗口中的水平滚动。我通过输入 Mx gdb 来调用 gdb，然后接受默认值（仅在末尾添加二进制文件的名称，例如）： gdb --annotate=3 unittest

在调用调试器后的某个时刻（不是立即），自动水平滚动不再起作用。

通过自动水平滚动，我的意思是预期的行为是：跟随光标，在必要时向左或向右移动视口。例如：当光标位于长行的末尾（例如第 200 列）时，窗口的查看区域会向右移动，使得第 200 列可见。如果我然后按“Home”并且光标跳到行首 - 窗口也会跟随它，我可以看到缓冲区的最左边的列。

将我的整个 .emacs 文件粘贴到此处可能是一个坏主意，所以我只是搜索与 hscroll 相关的条目：

(custom-set-variables
 '(column-number-mode t)
 '(cua-mode t nil (cua-base))
 '(hscroll-global-mode t nil (hscroll))
 '(hscroll-margin 5)
 '(hscroll-mode-name " ")
 '(hscroll-snap-threshold 30)
 '(indent-tabs-mode nil)
    ...

...但如果有人认为需要，我可以将其附加在此处或通过电子邮件发送...

希望有人知道如何解决此问题因为这真的很痛苦 - 每次我使用调试器时我都需要重新启动 emacs...我很确定这个问题在版本 20 中不存在...

原文

Emacs version I am using:
GNU Emacs 22.2.1 (i386-redhat-linux-gnu, GTK+ Version 2.12.9)

Invoking gdb from emacs breaks the horizontal scrolling in emacs windows. I invoke gdb by entering M-x gdb and then accept the default (only adding name of my binary at the end, e.g.):
gdb --annotate=3 unittest

At some point after the debugger is invoked (not immediately), the automatic horizontal scrolling no longer works.

By automatic horizontal scrolling I mean that the expected behaviour is: follow the cursor, shifting the viewport left or right when necessary. For example: when the cursor is positioned at the end of a long line (say column 200) the viewing area of the window is moved to the right, such that column 200 is visible. If I then press 'Home' and the cursor jumps to beginning of line - the window also follows it and I can see the left-most column of the buffer.

Pasting my entire .emacs file here is probably a bad idea so I just searched for entries related to hscroll:

(custom-set-variables
 '(column-number-mode t)
 '(cua-mode t nil (cua-base))
 '(hscroll-global-mode t nil (hscroll))
 '(hscroll-margin 5)
 '(hscroll-mode-name " ")
 '(hscroll-snap-threshold 30)
 '(indent-tabs-mode nil)
    ...

... but I can attach it here or email it if anyone thinks it is needed...

Hope someone knows how to fix this as coz it's a real pain - every time I use the debugger I need to restart emacs... I am pretty sure this problem was not present in version 20....

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