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-rw-r--r--doc/build.scm12
1 files changed, 9 insertions, 3 deletions
diff --git a/doc/build.scm b/doc/build.scm
index ca81d813a9..994b94eae2 100644
--- a/doc/build.scm
+++ b/doc/build.scm
@@ -221,6 +221,7 @@ its <pre class=\"lisp\"> blocks (as produced by 'makeinfo --html')."
(syntax-highlight lexers)
(guix build utils)
(srfi srfi-1)
+ (srfi srfi-26)
(ice-9 match)
(ice-9 threads)
(ice-9 vlist))
@@ -358,9 +359,14 @@ its <pre class=\"lisp\"> blocks (as produced by 'makeinfo --html')."
(define (anchor-id->key id)
;; Convert ID, an anchor ID such as
;; "index-pam_002dlimits_002dservice" to the corresponding key,
- ;; "pam-limits-service" in this example.
- (underscore-decode
- (string-drop id (string-length "index-"))))
+ ;; "pam-limits-service" in this example. Drop the suffix of
+ ;; duplicate anchor IDs like "operating_002dsystem-1".
+ (let ((id (if (any (cut string-suffix? <> id)
+ '("-1" "-2" "-3" "-4" "-5"))
+ (string-drop-right id 2)
+ id)))
+ (underscore-decode
+ (string-drop id (string-length "index-")))))
(define* (collect-anchors file #:optional (vhash vlist-null))
;; Collect the anchors that appear in FILE, a makeinfo-generated