Re: Protrusion cancellation by index term

[Hans Hagen <pragma@wxs.nl>]

On 3/21/2016 10:59 PM, Jan Tosovsky wrote:
> On 2014-02-23 Hans Hagen wrote:
>> On 2/22/2014 2:38 PM, Jan Tosovsky wrote:
>>> On 2014-02-22 Jan Tosovsky wrote:
>>>>
>>>> when a punctuated phrase appears at the beginning of the line,
>>>> it is not protruded correctly when preceded by an index term.
>>>>
>>>> ... \index{foo}>Bar< ...
>>>>
>>>> A minimal example is available at
>>>> http://drifted.in/other/sample.tex
>>>>
>>>> I cannot place the space character between these two parts
>>>> (which helps) as I sometimes need to join this and the previous
>>>> phrase with the non-breaking space.
>>>>
>>>
>>> It is more serious issue than expected. Consider next two
>>> variants:
>>>
>>> (1) sentence, \index{primary}>Primary<
>>> (2) sentence,\index{primary} >Primary<
>>>
>>> When the line is broken after a comma:
>>> ad 1) starting guillemet is not protruded
>>> ad 2) ending comma is not protruded
>>>
>>> When \index is surrounded by spaces from both sides, the space is
>>> rendered at the beginning of the next line (resulting in
>>> 'indenting').
>>>
>>> I'd be grateful for ignoring any non document content preceding
>>> punctuation to avoid its influence on protrusion.
>>
>> well, think of it like this:
>>
>> [something]<text>[something else]
>>
>> with [something] being bound to < ... so that is then the boundary of
>> the word, not < ... i might know a solution (but such -major- changes
>> have to fit into my schedule)
>
> are there any improvements here with revamped token processing implemented
> in recent versions?

it's not that trivial

- for the index we can cheat a bit but then i also need to check lots of 
other cases for possible interference

- for the footnote case there is no real solution as the heuristics of 
finding a protrusion character cannot be tricked too much without 
breaking it in other cases

but ... i think i can cook up something extra in the engine to drive the 
process; i'll play with it but again. it will take a lot of testing so 
it will then probably be an option for a while

Hans

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                                           Hans Hagen | PRAGMA ADE
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