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Re: [PATCH] Don't replace '\' with '\\' in before_prompt_hook
- From: Yao Qi <yao at codesourcery dot com>
- To: <gdb-patches at sourceware dot org>
- Date: Wed, 29 Oct 2014 22:19:10 +0800
- Subject: Re: [PATCH] Don't replace '\' with '\\' in before_prompt_hook
- Authentication-results: sourceware.org; auth=none
- References: <878ukfkkog dot fsf at codesourcery dot com> <1413982654-15995-1-git-send-email-yao at codesourcery dot com>
Yao Qi <yao@codesourcery.com> writes:
> In gdb/command/prompt.py:before_prompt_hook, the '\' in the new prompt
> is replaced with '\\', shown as below,
>
>> def before_prompt_hook(self, current):
>> if self.value is not '':
>> newprompt = gdb.prompt.substitute_prompt(self.value)
>> return newprompt.replace('\\', '\\\\')
>> else:
>> return None
>
> I don't see any explanations on this in comments nor email. As doc
> said, "set extended-prompt \w" substitute the current working
> directory, but it prints something different from what pwd or
> os.getcwdu() prints on mingw32 host.
>
> (gdb) python print os.getcwdu()^M
> \\build2-lucid-cs\yqi\yqi\arm-none-eabi
>
> (gdb) pwd^M
> Working directory \\build2-lucid-cs\yqi\yqi\arm-none-eabi
>
> (gdb) set extended-prompt \w
> \\\\build2-lucid-cs\\yqi\\yqi\\arm-none-eabi
>
> This makes me think whether the substitution in before_prompt_hook is
> necessary or not. This patch is to remove this substitution.
>
> Run gdb.python on x86_64-linux and arm-none-eabi on mingw32 host. No
> regressions. Is it OK?
>
> gdb:
>
> 2014-10-22 Yao Qi <yao@codesourcery.com>
>
> * python/lib/gdb/command/prompt.py (before_prompt_hook): Don't
> replace '\\' with '\\\\'.:
The trailing : can be removed. I appreciate people familiar with gdb
python can review this patch, so, here is a ping.
--
Yao (éå)