Define doifoneelse

Define doifoneelse

[Aditya Mahajan]

Hi,

  I want to define a macro, \doifoneelse, that checks if the first 
argument is 1 or not. It should work for decimals and strings also. 
So,

\doifoneelse{1}{a}{b}  gives a
\doifoneelse{1.5}{a}{b} gives b
\doifonelese{string}{a}{b} gives b

Can someone suggest how to define this?

Thanks,
Aditya

Re: Define doifoneelse

[Aditya Mahajan]

On Mon, 11 Sep 2006, Aditya Mahajan wrote:

> Hi,
>
>  I want to define a macro, \doifoneelse, that checks if the first
> argument is 1 or not. It should work for decimals and strings also.
> So,
>
> \doifoneelse{1}{a}{b}  gives a
> \doifoneelse{1.5}{a}{b} gives b
> \doifonelese{string}{a}{b} gives b
>
> Can someone suggest how to define this?

Ah, it is already defined in context. I was so fixated upon using 
\ifnum and \ifcase that I did not see \doifelse. Sorry about the 
noise.

Aditya

Re: Define doifoneelse

[Peter Münster]

On Mon, 11 Sep 2006, Aditya Mahajan wrote:

> \doifoneelse{1}{a}{b}  gives a
> \doifoneelse{1.5}{a}{b} gives b
> \doifonelese{string}{a}{b} gives b
> 
> Can someone suggest how to define this?

\def\doifoneelse#1#2#3{\doifelse{1}{#1}{#2}{#3}}
\starttext
\doifoneelse{1}{a}{b}      gives a
\doifoneelse{1.5}{a}{b}    gives b
\doifoneelse{string}{a}{b} gives b
\stoptext

Cheers, Peter

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Re: Define doifoneelse

[Aditya Mahajan]

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On Mon, 11 Sep 2006, Peter Münster wrote:

> On Mon, 11 Sep 2006, Aditya Mahajan wrote:
>
>> \doifoneelse{1}{a}{b}  gives a
>> \doifoneelse{1.5}{a}{b} gives b
>> \doifonelese{string}{a}{b} gives b
>>
>> Can someone suggest how to define this?
>
> \def\doifoneelse#1#2#3{\doifelse{1}{#1}{#2}{#3}}

Thanks Peter,

  I ended up using

\def\doifoneelse#1{\doifelse{#1}{1}}

which saves a few keystrokes :)

Aditya

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Re: Define doifoneelse

[Hans Hagen]

Aditya Mahajan wrote:
>
>
> On Mon, 11 Sep 2006, Peter M�nster wrote:
>
>> On Mon, 11 Sep 2006, Aditya Mahajan wrote:
>>
>>> \doifoneelse{1}{a}{b}  gives a
>>> \doifoneelse{1.5}{a}{b} gives b
>>> \doifonelese{string}{a}{b} gives b
>>>
>>> Can someone suggest how to define this?
>>
>> \def\doifoneelse#1#2#3{\doifelse{1}{#1}{#2}{#3}}
>
> Thanks Peter,
>
>  I ended up using
>
> \def\doifoneelse#1{\doifelse{#1}{1}}
>
> which saves a few keystrokes :)
\def\doifoneelse{\doifelse{1}}

or 

\def\doifoneelse{\doifelse1}

saves you even more keystrokes and also a bit of runtime (measured in nanoseconds) 

Hans 

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