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;; $Id: dbindex.dsl,v 1.2 2004/05/17 14:55:24 tony2001 Exp $
;;
;; This file is part of the Modular DocBook Stylesheet distribution.
;; See ../README or http://docbook.sourceforge.net/projects/dsssl/
;;
;; ................... INDEX TERMS (EMBEDDED MARKERS) ...................
(element indexterm
;; This is different than (empty-sosofo) alone because the backend
;; will hang an anchor off the empty sequence. This allows the index
;; to point to the indexterm (but only if the indexterm has an ID).
(make sequence (empty-sosofo)))
(element primary (empty-sosofo))
(element secondary (empty-sosofo))
(element tertiary (empty-sosofo))
(element see (empty-sosofo))
(element seealso (empty-sosofo))
;; =========================== INDEX ELEMENTS ===========================
(element setindex ($component$))
(element (setindex title) (empty-sosofo))
(element index
(make simple-page-sequence
page-number-restart?: (or %page-number-restart%
(book-start?)
(first-chapter?))
page-number-format: ($page-number-format$)
use: default-text-style
left-header: ($left-header$)
center-header: ($center-header$)
right-header: ($right-header$)
left-footer: ($left-footer$)
center-footer: ($center-footer$)
right-footer: ($right-footer$)
start-indent: %body-start-indent%
input-whitespace-treatment: 'collapse
quadding: %default-quadding%
page-n-columns: 2
(make sequence
($component-title$)
(process-children))
(make-endnotes)))
;; this is a special case. this prevents the index from causing an error but
;; will make the index a single column. c'est la vie.
(element (article index) ($section$))
(element (index title) (empty-sosofo))
(element indexdiv ($section$))
(element (indexdiv title) (empty-sosofo))
(element indexentry (process-children))
(element primaryie
(make paragraph
font-size: (* (inherited-font-size) %smaller-size-factor%)
(process-children)))
(element secondaryie
(make paragraph
font-size: (* (inherited-font-size) %smaller-size-factor%)
start-indent: (+ (inherited-start-indent) 1em)
(process-children)))
(element tertiaryie
(make paragraph
font-size: (* (inherited-font-size) %smaller-size-factor%)
start-indent: (+ (inherited-start-indent) 2em)
(process-children)))
(define (find-indexterm id)
;; If you have a lot of indexterms that don't have IDs, this could
;; be incredibly slow. So don't do that.
(let* ((idtarget (element-with-id id)))
(if (node-list-empty? idtarget)
(let loop ((idnodes (select-elements (descendants (sgml-root-element))
(normalize "indexterm"))))
(if (node-list-empty? idnodes)
(empty-node-list)
(if (equal? id (string-append "AEN"
(number->string
(all-element-number
(node-list-first idnodes)))))
(node-list-first idnodes)
(loop (node-list-rest idnodes)))))
idtarget)))
(define (indexentry-link nd)
(let* ((id (attribute-string (normalize "role") nd))
(target (find-indexterm id))
(preferred (not (node-list-empty?
(select-elements (children (current-node))
(normalize "emphasis")))))
(sosofo (if (node-list-empty? target)
(literal "?")
(make link
destination: (node-list-address target)
(with-mode toc-page-number-mode
(process-node-list target))))))
(if preferred
(make sequence
font-weight: 'bold
sosofo)
sosofo)))
(element (primaryie ulink)
(indexentry-link (current-node)))
(element (secondaryie ulink)
(indexentry-link (current-node)))
(element (tertiaryie ulink)
(indexentry-link (current-node)))
(element seeie
(let ((indent (cond ((node-list-empty?
(select-elements
(children (parent (current-node)))
(normalize "secondaryie")))
1em)
((node-list-empty?
(select-elements
(children (parent (current-node)))
(normalize "tertiaryie")))
2em)
(else 3em))))
(make paragraph
font-size: (* (inherited-font-size) %smaller-size-factor%)
start-indent: (+ (inherited-start-indent) indent)
(literal "(" (gentext-index-see) " ")
(process-children)
(literal ")"))))
(element seealsoie
(let ((indent (cond ((node-list-empty?
(select-elements
(children (parent (current-node)))
(normalize "secondaryie")))
1em)
((node-list-empty?
(select-elements
(children (parent (current-node)))
(normalize "tertiaryie")))
2em)
(else 3em))))
(make paragraph
font-size: (* (inherited-font-size) %smaller-size-factor%)
start-indent: (+ (inherited-start-indent) indent)
(literal "(" (gentext-index-seealso) " ")
(process-children)
(literal ")"))))
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