[NTG-context] URLs break bib export

Hans Hagen j.hagen at xs4all.nl
Fri Jul 27 18:18:11 CEST 2018

On 7/27/2018 5:17 AM, Rik Kabel wrote:
> The new tagged biblography export is very nice, but there is a routine 
> (marked UGLY in the source) that causes processing to fail with 
> otherwise-valid input. The failure message is

> ...eXt/tex/texmf-context/tex/context/base/mkiv/back-exp.lua:3889: 
> invalid capture index
> stack traceback:
>          [C]: in function 'gsub'
> ...eXt/tex/texmf-context/tex/context/base/mkiv/back-exp.lua:3889: in 
> function <...eXt/tex/texmf-context/tex/context/base/mkiv/back-exp.lua:3747>
>          (...tail calls...)
> and two URLs which cause this problem are:
>     url         = {http://www.jerwood-no.org.uk/pdf/Dunning%20Kruger.pdf},
>     url         = 
> {http://oll.libertyfund.org/?option=com_staticxt&staticfile=show.php\%3Fcollection=46&Itemid=27}, 
> These URLs caused no problem with PDF output  or in the previous 
> exports, although they were not printed and exist only in the bibliography.

it's a side effect of gsub interpreting its replacement text so i need 
to adapt that bit

> Do I need to protect the special characters in the bib file, or is this 
> a problem with the UGLY code?
no, the code is marked ugly because i don't like it being done that way


                                           Hans Hagen | PRAGMA ADE
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