The bibliography function loads bibliography entries into the bibliography table specified using the :bib-table parameter. It can be passed either lists representing entries (such as an article or book reference), or strings denoting the names of files that contains several entries. All the entries loaded in memory can then be referred to with ref. A bibliography database must be loaded before any reference is introduced. It is advised to place the bibliography function call before the call to the document function call.

Files passed as an argument to bibliography are searched in the current bibliography path, which is defined by the *bib-path* SRFI-39 parameter. This parameter contains a list of directories and its value can be obtained using (*bib-path*). Its value can be altered using the -B command-line option of the skribilo compiler (see Chapter 14 for details).

The :command option can be used to import foreign bibliography. The following example, shows how to directly use a BibTeX bibliography using the Skribebibtex translator.

(bibliography 

:command
 
"gzip -d --to-stdout ~a | skribebibtex"
 
"scheme.bib.gz"
)

The Skribe/Skribilo bibliography database uses a format very close to the BibTeX one, which is a parenthetic version of BibTeX. Here is the syntax of an entry:

<entry>  -->  
(<kind> <key> <field>+
)
<kind>   -->  techreport | article | inproceedings | book
<key>    -->  <symbol> | <string>
<field>  -->  
(<symbol> <string>
)

BibTeX files cannot be directly loaded but the tool skribebibtex can be use to automatically convert BibTeX format to Skribe bibliography format. Here is an example of a simple Skribe database.

(book queinnec:lisp

   (

author
 
"Christian Queinnec"
)

   (title 
"Lisp In Small Pieces"
)

   (publisher 
"Cambridge University Press"
)

   (year 
"1996"
))



(book scheme:ieee

   (title 
"IEEE Standard for the Scheme Programming Language"
)

   (

author
 (noabbrev 
"IEEE Std 1178-1990"
))

   (publisher 
"Institute of Electrical and Electronic Engineers, Inc."
)

   (address 
"New York, NY"
)

   (year 
"1991"
))



(misc bigloo

   (

author
 
"Manuel Serrano"
)

   (year 
"2006"
)

   (url 
"http://www.inria.fr/mimosa/fp/Bigloo"
))



(misc scheme:r4rs

   (title 

[
The Revised,(

sup
 

[
4

]
) Report on the Algorithmic Language Scheme

]
)

   (

author
 
"William D. Clinger, Jonathan Rees"
)

   (month 
"Nov"
)

   (year 
"1991"
)

   (url 
"http://www.cs.indiana.edu/scheme-repository/R4RS/r4rs_toc.html"
))



(article scheme:r5rs

   (title 
"The Revised5 Report on the Algorithmic Language Scheme"
)

   (

author
 
"Richard Kelsey, William D. Clinger, Jonathan Rees"
)

   (journal 
"Higher-Order and Symbolic Computation"
)

   (volume 
"11"
)

   (number 
"1"
)

   (month 
"Sep"
)

   (year 
"1998"
)

   (url 
"http://kaolin.unice.fr/Bigloo/doc/r5rs.html"
))



(book as:sicp

   (

author
 
"Harold Abelson, Gerald Jay Sussman"
)

   (title 
"Structure and Interpretation of Computer Programs"
)

   (year 
"1985"
)

   (publisher 
"MIT Press"
)

   (address 
"Cambridge, Mass., USA"
))

The function the-bibliography displays the bibliography.

Note that the name+year label style will only work if the following conventions are followed by the author field of your bibliography entries:

• the author fields of bibliographic entries should be a string containing a comma-separated list of full author names;
• each ``full author name'' should have the form first-name second-name ... last-name.

The following example illustrates typical use of a bibliography.

[
Scheme ,(

ref
 

:bib
 'scheme:r5rs) is functional programming language. It exists

several books about this language ,(

ref
 

:bib
 '(as:sicp queinnec:lisp)).



,(

linebreak
 2)

,(

center
 (

bold
 

[
-- Bibliography --

]
))



,(

center
 (frame 

:border
 1 

:margin
 2 

:width
 90. (the-bibliography)))

]

... produces:

Note that the current locale setting affects the language used in bibliography entries. For instance, if the LC_ALL environment variable is set to sv_SE.utf8, then phrases like ``Chapter'' or ``Technical Report'' will be written in Swedish.

The :pred option is bound to a function of one argument that filters bibliography entries. It is used to control which entries must appears on a bibliography. The default behavior is to display only the entries referenced to in the text. For instance, in order to display all the entries of a bibliography, is it needed to print the bibliography with a predicate returning always #t.

(

center
 

 (frame 

:border
 1 

:margin
 2 

:width
 90. 

         (the-bibliography 

:pred
 (
lambda (m n) #t))))

... produces:

The second example, filters out the entries that are not book or that are not referenced to from the document.

(

center


 (frame 

:border
 1 

:margin
 2 

:width
 90.

         (the-bibliography 

:pred
 (
lambda (m n) 

                                    (and (eq? (markup-option m 'kind) 'book)

                                         (pair? (markup-option m 'used)))))))

... produces:

The last example, illustrates how to change the rendering of a bibliography. It uses the [ ?mark processor: skribilo/documentation/manual.scm:315:4: ] construction and it defines two [ ?ident writer: ./bib.skb:252:21: ] for displaying &bib-entry-ident and &bib-entry-title markups. These two markups are introduced by Skribe when it loads a bibliography. All fields of bibliography entries are represented by markups whose prefix are &bib-entry-. The parent of all these markups is the bibliography entry itself. The &bib-entry- markups are options of there parent.

(

center


 (frame 

:border
 1 

:margin
 2 

:width
 90.

         (

processor
 

:engine


                    (make-engine '_ 

:filter
 string-upcase)

                    

:combinator


                    (
lambda (e1 e2)

                       (
let ((e (copy-engine '_ e2)))

                          (markup-writer '&bib-entry-ident e

                                         

:action


                                         (
lambda (n e)

                                            (
let* ((be (ast-parent n))

                                                   (o (markup-option be 'author))

                                                   (y (markup-option be 'year)))

                                               (output (markup-body o) e1)

                                               (display 
":"
)

                                               (output (markup-body y) e))))

                          (markup-writer '&bib-entry-title e

                                         

:action


                                         (
lambda (n e)

                                            (evaluate-document (

it
 (markup-body n)) e)))

                          e))

                    (the-bibliography 

:pred
 

                                      (
lambda (m n)

                                         (eq? (markup-option m 'kind) 'book))))))

... produces:

The :sort option of the the-bibliography markup is used for sorting the bibliography entries. There are three pre-existing functions for sorting entries, defines in the (skribilo biblio) module (see Section 1.5).

The first function sorts the entries according to an alphabetic ordering on authors. The second sorts according to an alphabetic ordering on entries identifier. The last one sorts according to entries date.

(

define
 (bib-sort/idents l)

   (sort l (
lambda (e f) (string<? (markup-ident e) (markup-ident f)))))

In addition, the (skribilo biblio author) module exports a fourth procedure that sorts bibliography entries:

This procedure allows entries to be sorted according to the last name of the first author of each bibliography entry. For this to work, the author field of bibliography entries must follow the same conventions as for the name+year label style of the-bibliography.

FIXME: This tool is not available as of Skribilo version UNKNOWN.