\index{…} causes space

\index{…} causes space

[Andreas Harder]

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Hi all,

is it possible to make \index{…} more robust, so that one could set a space between command an followed word?

\startTEXpage[offset=1ex]
test test\vl \crlf
test \index{test}test\vl \crlf  % OK
test \index{test} test\vl   % not OK
\stopTEXpage

But more important, even if there isn’t a space, the \index-command spoils the output.

\setuplayout[width=middle,backspace=40mm]
\starttext  \showframe[text][text]
\dorecurse{100}{test }
\blank
\dorecurse{100}{\index{test}test }
\stoptext


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I hope this can be fixed soon …

Greeting
	Andreas

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Re: \index{…} causes space

[Taco Hoekwater]

On 12/24/2010 11:48 AM, Andreas Harder wrote:
> \startTEXpage[offset=1ex]
> test test\vl \crlf
> test \index{test}test\vl \crlf  % OK
> test \index{test} test\vl   % not OK
> \stopTEXpage

\ignorespaces could be possibly be added to \index in your case,
but that does not solve this conceptual problem: what is actually
being indexed in that second line? Not the word on the left
(as that could be on a different page), neither the word on the
right (as that could also be on a different page).

So basically, you are indexing the spot between two spaces.
Therefore it seems justified that ConTeXt conveniently keeps
both spaces ...

Best wishes,
Taco


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Re: \index{…} causes space

[Alan BRASLAU]

On Friday 24 December 2010 11:54:17 Taco Hoekwater wrote:
> > On 12/24/2010 11:48 AM, Andreas Harder wrote:
> > \index{test}test
> 
> \ignorespaces could be possibly be added to \index in your case,
> but that does not solve this conceptual problem: what is actually
> being indexed in that second line? Not the word on the left
> (as that could be on a different page), neither the word on the
> right (as that could also be on a different page).

I have understood that the correct use of \index{}
is immediately following the word to be indexed, as in:
	test\index{test}

In the case of indexing a multiple-word item, one should
probably place \index{} immediately following the first word, as in:
	merry\index{merry christmas} christmas!
(so that the reference points to the page featuring "merry",
even if "christmas" wraps the the following page).

Alan
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Re: \index{…} causes space

[Andreas Harder]

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Am 24.12.2010 um 12:53 schrieb Alan BRASLAU:

> On Friday 24 December 2010 11:54:17 Taco Hoekwater wrote:
>>> On 12/24/2010 11:48 AM, Andreas Harder wrote:
>>> \index{test}test
>> 
>> \ignorespaces could be possibly be added to \index in your case,
>> but that does not solve this conceptual problem: what is actually
>> being indexed in that second line? Not the word on the left
>> (as that could be on a different page), neither the word on the
>> right (as that could also be on a different page).
> 
> I have understood that the correct use of \index{}
> is immediately following the word to be indexed, as in:
> 	test\index{test}

The wiki (http://wiki.contextgarden.net/Registers#Example) suggests it the other way round …?

Andreas


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Re: \index{…} causes space

[Alan BRASLAU]

On Friday 24 December 2010 12:57:26 Andreas Harder wrote:
> Am 24.12.2010 um 12:53 schrieb Alan BRASLAU:
> > On Friday 24 December 2010 11:54:17 Taco Hoekwater wrote:
> >>> On 12/24/2010 11:48 AM, Andreas Harder wrote:
> >>> \index{test}test
> >> 
> >> \ignorespaces could be possibly be added to \index in your case,
> >> but that does not solve this conceptual problem: what is actually
> >> being indexed in that second line? Not the word on the left
> >> (as that could be on a different page), neither the word on the
> >> right (as that could also be on a different page).
> > 
> > I have understood that the correct use of \index{}
> > 
> > is immediately following the word to be indexed, as in:
> > 	test\index{test}
> 
> The wiki (http://wiki.contextgarden.net/Registers#Example) suggests it the
> other way round …?
> 

I don't know about the wiki. Maybe it is correct, maybe not.
I suppose that I should be able to figure this out looking at the source code.

As Taco points out (see below):
	test \index{test}
is no good, as the page can possibly be broken before the index entry;
	\index{test}test
is no good either, as "test" may appear on the page following the index entry.

I had always understood the correct usage to be: 
	test\index{test}

On Friday 24 December 2010 11:54:17 Taco Hoekwater wrote:
> On 12/24/2010 11:48 AM, Andreas Harder wrote:
> > \startTEXpage[offset=1ex]
> > test test\vl \crlf
> > test \index{test}test\vl \crlf  % OK
> > test \index{test} test\vl   % not OK
> > \stopTEXpage
> 
> \ignorespaces could be possibly be added to \index in your case,
> but that does not solve this conceptual problem: what is actually
> being indexed in that second line? Not the word on the left
> (as that could be on a different page), neither the word on the
> right (as that could also be on a different page).
> 
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