[英]Emacs hangs in haskell-mode with inferior-haskell-load-file call
When in a Haskell file, I use Cc Cl
to run the command inferior-haskell-load-file
which is intended to load the current file into the GHCI interpreter but Emacs just hangs until I hit Cg
. 在Haskell文件中,我使用
Cc Cl
来运行命令inferior-haskell-load-file
,该命令用于将当前文件加载到GHCI解释器中,但Emacs只是挂起,直到我点击Cg
。 Anyone know how I can get this to work? 谁知道我怎么能让这个工作?
GNU Emacs 23.3.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.5) of 2011-08-14 on allspice, modified by Debian 2011-08-14关于五香粉的GNU Emacs 23.3.1(x86_64-pc-linux-gnu,GTK +版本2.24.5),由Debian修改
Using haskell-mode version v2.7.0 使用haskell-mode版本v2.7.0
inferior-haskell-mode does some parsing based upon the expected ghci prompt. inferior-haskell-mode根据预期的ghci提示进行一些解析。 As such, if you change the prompt in a
.ghci
file, then it can't detect it. 因此,如果更改
.ghci
文件中的提示,则无法检测到它。
For more information, see where haskell-ghci.el sets the comint-prompt-regexp
value to determine what a prompt is . 有关更多信息,请参阅haskell-ghci.el设置
comint-prompt-regexp
值以确定提示的位置 。
;; GHCi prompt should be of the form `ModuleName> '.
(setq comint-prompt-regexp
"^\\*?[[:upper:]][\\._[:alnum:]]*\\( \\*?[[:upper:]][\\._[:alnum:]]*\\)*> ")
If you want to keep the setting in your .ghci
file, then it may be possible to customise this settings. 如果要将设置保留在
.ghci
文件中,则可以自定义此设置。
Old question, but as I just ran into this today, I wanted to share how to actually customize comint-prompt-regexp
since I had to figure it out. 老问题,但正如我今天遇到的那样,我想分享如何实际定制
comint-prompt-regexp
因为我必须弄明白。
This customization will recognize λ>
prompts, or actually any single character before >
), but it doesn't break the existing regex. 此自定义将识别
λ>
提示,或实际上>
)之前的任何单个字符,但它不会破坏现有的正则表达式。 In your .emacs
: 在你的
.emacs
:
(load-library "inf-haskell")
(defun my-inf-haskell-hook ()
(setq comint-prompt-regexp
(concat comint-prompt-regexp "\\|^.> ")))
(add-to-list 'inferior-haskell-mode-hook 'my-inf-haskell-hook)
You can add more dots to "\\\\|^.> "
to recognize a longer prompt, but I wanted to keep it fixed-length for simplicity. 您可以向
"\\\\|^.> "
添加更多点以识别更长的提示,但为了简单起见,我希望保持固定长度。
I got the same error message when I tried to use stack with emacs. 当我尝试使用与emacs的堆栈时,我收到了相同的错误消息。 For me, adding this line to my .emacs/init.el resolved the problem:
对我来说,将这一行添加到我的.emacs / init.el解决了这个问题:
(setq haskell-program-name "stack ghci")
I had a similar problem caused by GHCi reporting some kind of error on startup, causing the Emacs haskell mode to wait for the GHCi prompt indefinitely (GHCi didn't show the standard prompt ( Prelude>
), but rather just showed >
). 我有一个类似的问题,GHCi在启动时报告某种错误,导致Emacs haskell模式无限期地等待GHCi提示(GHCi没有显示标准提示(
Prelude>
),而只是显示>
)。 You can try running GHCi externally and see if it reports any errors. 您可以尝试在外部运行GHCi,看看它是否报告任何错误。
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