How to make c-indent-line-region respect indent-tabs-mode when it's already aligned?

How to make c-indent-line-region respect indent-tabs-mode when it's already aligned?

[Hong Xu]

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Hi,

Currently it seems that c-indent-line-region ignores the value of
indent-tabs-mode. For example, I have the following in a buffer

    int main()
    {
    <Tab>int x;
    }

and my indent-tabs-mode is nil. If 8 spaces is what expected, calling
c-indent-line-or-region would do nothing. However, if it's not aligned

    int main()
    {
    <Tab>   int x;
    }

calling c-indent-line-or-region would correct the tab with appropriate
number of spaces.

Is there a different line indentation function which respects
indent-tabs-mode even the line is already aligned?

Thanks,
Hong

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Re: How to make c-indent-line-region respect indent-tabs-mode when it's already aligned?

[Eli Zaretskii]

> From: Hong Xu <hong@topbug.net>
> Date: Sat, 30 May 2015 01:28:13 -0700
> 
> Currently it seems that c-indent-line-region ignores the value of
> indent-tabs-mode. For example, I have the following in a buffer
> 
>     int main()
>     {
>     <Tab>int x;
>     }
> 
> and my indent-tabs-mode is nil. If 8 spaces is what expected, calling
> c-indent-line-or-region would do nothing. However, if it's not aligned
> 
>     int main()
>     {
>     <Tab>   int x;
>     }
> 
> calling c-indent-line-or-region would correct the tab with appropriate
> number of spaces.
> 
> Is there a different line indentation function which respects
> indent-tabs-mode even the line is already aligned?

You are using the wrong command.  You should use untabify to convert
tabs to spaces, or tabify to do the opposite.

Re: How to make c-indent-line-region respect indent-tabs-mode when it's already aligned?

[Hong Xu]

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Eli Zaretskii <eliz@gnu.org> writes:

>> From: Hong Xu <hong@topbug.net>
>> Date: Sat, 30 May 2015 01:28:13 -0700
>> 
>> Currently it seems that c-indent-line-region ignores the value of
>> indent-tabs-mode. For example, I have the following in a buffer
>> 
>>     int main()
>>     {
>>     <Tab>int x;
>>     }
>> 
>> and my indent-tabs-mode is nil. If 8 spaces is what expected, calling
>> c-indent-line-or-region would do nothing. However, if it's not aligned
>> 
>>     int main()
>>     {
>>     <Tab>   int x;
>>     }
>> 
>> calling c-indent-line-or-region would correct the tab with appropriate
>> number of spaces.
>> 
>> Is there a different line indentation function which respects
>> indent-tabs-mode even the line is already aligned?
>
> You are using the wrong command.  You should use untabify to convert
> tabs to spaces, or tabify to do the opposite.

Thanks. Is there a single command to do formatting though? I think
people want to format the line more than simply "indent" the line.

Hong

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Re: How to make c-indent-line-region respect indent-tabs-mode when it's already aligned?

[Eli Zaretskii]

> From: Hong Xu <hong@topbug.net>
> Cc: help-gnu-emacs@gnu.org
> Date: Sat, 30 May 2015 15:48:42 -0700
> 
> >> Is there a different line indentation function which respects
> >> indent-tabs-mode even the line is already aligned?
> >
> > You are using the wrong command.  You should use untabify to convert
> > tabs to spaces, or tabify to do the opposite.
> 
> Thanks. Is there a single command to do formatting though? I think
> people want to format the line more than simply "indent" the line.

indent-region, bound to C-M-\ by default, usually works for me.