From a1e594bb440bb37ef1c99b68f24f62b4a72a99c7 Mon Sep 17 00:00:00 2001
From: Case Duckworth
Date: Fri, 6 Jan 2023 22:40:56 -0600
Subject: Add sort_items

This allows list functions to work with a sorted list.. whatever that sorting
may be.  The default is 'cat', which is purposefully not very useful.
---
 vienna | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/vienna b/vienna
index f40f027..e88941d 100755
--- a/vienna
+++ b/vienna
@@ -346,6 +346,7 @@ genpage() { # genpage PAGE...
 }
 
 genlist() { # genlist PERITEM_FUNC TEMPLATE_FILE PAGE...
+    ## Generate a list.
     peritem_func="$1"
     template_file="$2"
     tmpf="$TMPD/$1"
@@ -355,12 +356,19 @@ genlist() { # genlist PERITEM_FUNC TEMPLATE_FILE PAGE...
 	echo | expand "$template_file"
 	return
     fi
-    for FILE; do
-        log genlist "$peritem_func" "$FILE"
-        LINK="$DOMAIN${DOMAIN:+/}${FILE%.$PAGE_RAW_EXT}"
-	META="$TMPD/$FILE.meta"
-        "$peritem_func" "$FILE"
-    done | expand "$template_file"
+    printf '%s\n' "$@" | sort_items |
+	while read -r FILE; do
+            log genlist "$peritem_func" "$FILE"
+            LINK="$DOMAIN${DOMAIN:+/}${FILE%.$PAGE_RAW_EXT}"
+	    META="$TMPD/$FILE.meta"
+            "$peritem_func" "$FILE"
+	done | expand "$template_file"
+}
+
+sort_items() { # sort_items < ITEMS
+    ## Sort ITEMS separated by newlines.
+    # This function assumes that no ITEM contains a newline.
+    cat
 }
 
 index_item() { # index_item PAGE
-- 
cgit 1.4.1-21-gabe81