\nocite{*} but with option to select entry by keywords/datatype

[maieul]

Should it be possible to have an equivalent of \nocite{*} but with option select entry by keywords or datatype. It could be useful to don't forget to add in final bibliography entries about one topic.

[aboruvka]

\nocite accesses bibliographic data. We can't selectively \nocite entries by keyword or entrytype without accessing the data first. You should try filtering the bibliography instead.

[maieul]

I see, but filter implies to suppress datas, and what I want is to add datas.

Example :

• entry A has keyword "X"
• entry B has keyword "X"
• Entry C has keyword "Y"

I want to automatically add entries with keyword X, but manually add entry with keyword Y.

If I made \nocite{*}, that implies I should filter C, except if C was explicitly called. But \ifciteseen can't be called only (as documentation says) in bibliography style, not in a bibcheck.

Should'nt be possible to have command which says to biber "add entry if … some condition…) (as nocite{xx} says to biber "add this entries") and biber will filter that ?

[aboruvka]

Unless an entry has already been previously cited via any citation command, we can't know its keywords or type at the point of \nocite.

You can create a category for cited entries and then define a filter considering this new category and keywords. Use of \nocite{*} is sometimes problematic with \labelnumberwidth when many entries are filtered. To fix this, you can selectively enable the skip* options via biber's sourcemap.

I realize it might be frustrating to have your feature requests continually closed. Instead of requesting a feature to solve each new problem you encounter, consider posting a question at TeX.SE. We often address questions worthy of a new feature here.

[maieul]

What I don't understand is : when you use \nocite{*} you did'nt read the data information before, isn't it ? but you said to biber to add data entry to bbl file.

[aboruvka]

Keywords and types are part of the bibliographic data. These data are available for an entry only after it is cited via \nocite or some other citation command.

Please, if you need help solving your problem post at TeX.SE.

[maieul]

Of course, I know keywords and types of bibliographical datas. But I don't understand what forbid to :

• write in the bcf file "Hey biber, could you add all entry with this keyword"
• changer biber which understand this "sentence".

When a nocite is used he say "hey, biber, could you add all entry in the bbl file". And biber read all entry and write it in bcf file.

I can understand you don't want to add this feature. But I don't understand why it's not possible.

Ps : with your link, I understand what method you want I use. So here is not a question help, but a question to understand your answer.

[aboruvka]

Biber and BibTeX have no mechanism for backing out of an entry once it encounters specific keywords. They are just parsers. Biber can perform source mapping, but it can't selectively parse entries.

\nocite is a LaTeX command. From the LaTeX end you can only perform actions on the basis of bibliographic data already available in the bbl file.

[maieul]

ok, I understand better. Thanks

[maieul]

ps : as you can use, I use also stackexchange … when I think it's a problem of comprehension from mine, and not a need for new feature. http://tex.stackexchange.com/questions/146886/declaredatamodelentryfields-make-biber-doesnt-work

[aboruvka]

I can see that, but what I am saying is that posting to TeX.SE is generally better use of everyone's time. That way you avoid (1) conceiving a new feature to solve your problem, (2) clarifying what your underlying problem is with additional comments, and (3) having your feature requests rejected.