From 637f87c76bd0be241f5bfa9acbf7fc32ba53d13f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jesper=20Engstr=C3=B6m?= <jesper.engstrom@kb.se>
Date: Fri, 9 Oct 2026 15:05:13 +0200
Subject: [PATCH] feat(lxlweb): add Vancouver citation style

---
 .../csl/elsevier-vancouver-author-date.csl    | 184 ++++++++++++++++++
 lxl-web/src/lib/utils/citation.ts             |  15 +-
 2 files changed, 198 insertions(+), 1 deletion(-)
 create mode 100644 lxl-web/src/lib/assets/csl/elsevier-vancouver-author-date.csl

diff --git a/lxl-web/src/lib/assets/csl/elsevier-vancouver-author-date.csl b/lxl-web/src/lib/assets/csl/elsevier-vancouver-author-date.csl
new file mode 100644
index 0000000000..204801f5df
--- /dev/null
+++ b/lxl-web/src/lib/assets/csl/elsevier-vancouver-author-date.csl
@@ -0,0 +1,184 @@
+<?xml version="1.0" encoding="utf-8"?>
+<style xmlns="http://purl.org/net/xbiblio/csl" page-range-format="minimal" class="in-text" version="1.0" demote-non-dropping-particle="sort-only" default-locale="en-US">
+  <info>
+    <title>Elsevier - NLM/Vancouver (name-year)</title>
+    <title-short>Elsevier - Vancouver</title-short>
+    <id>http://www.zotero.org/styles/elsevier-vancouver-author-date</id>
+    <link href="http://www.zotero.org/styles/elsevier-vancouver-author-date" rel="self"/>
+    <link href="http://www.zotero.org/styles/elsevier-vancouver" rel="template"/>
+    <link href="https://www.elsevier.com/journals/clinical-neurophysiology/1388-2457/guide-for-authors#68000" rel="documentation"/>
+    <author>
+      <name>Sebastian Karcher</name>
+    </author>
+    <category citation-format="author-date"/>
+    <summary>A style for some Elsevier journals, resembles Vancouver style, but using author-date format</summary>
+    <updated>2019-10-15T22:06:38+00:00</updated>
+    <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
+  </info>
+  <macro name="author">
+    <names variable="author">
+      <name initialize-with="" delimiter=", " delimiter-precedes-last="always" name-as-sort-order="all" sort-separator=" "/>
+      <label form="long" prefix=", "/>
+      <substitute>
+        <names variable="editor"/>
+        <names variable="translator"/>
+        <text variable="title"/>
+      </substitute>
+    </names>
+  </macro>
+  <macro name="author-short">
+    <names variable="author">
+      <name form="short" and="text" delimiter=", " initialize-with=". "/>
+      <substitute>
+        <names variable="editor"/>
+        <names variable="translator"/>
+        <text variable="title" form="short"/>
+      </substitute>
+    </names>
+  </macro>
+  <macro name="editor">
+    <names variable="editor">
+      <name initialize-with="" delimiter=", " delimiter-precedes-last="always" name-as-sort-order="all" sort-separator=" "/>
+      <label form="long" prefix=", " suffix="."/>
+    </names>
+  </macro>
+  <macro name="year-date">
+    <choose>
+      <if variable="issued">
+        <date variable="issued">
+          <date-part name="year"/>
+        </date>
+      </if>
+      <else>
+        <text term="no date" form="short"/>
+      </else>
+    </choose>
+  </macro>
+  <macro name="publisher">
+    <text variable="publisher-place" suffix=": " text-case="title"/>
+    <text variable="publisher" suffix="; "/>
+    <text macro="year-date"/>
+  </macro>
+  <macro name="edition">
+    <choose>
+      <if is-numeric="edition">
+        <group delimiter=" ">
+          <number variable="edition" form="ordinal"/>
+          <text term="edition" form="short"/>
+        </group>
+      </if>
+      <else>
+        <text variable="edition"/>
+      </else>
+    </choose>
+  </macro>
+  <macro name="access">
+    <choose>
+      <if variable="DOI">
+        <text variable="DOI" prefix="https://doi.org/"/>
+      </if>
+      <else-if type="webpage post-weblog" match="any">
+        <choose>
+          <if variable="URL">
+            <text variable="URL"/>
+            <group prefix=" (" suffix=")" delimiter=" ">
+              <text term="accessed"/>
+              <date variable="accessed" form="text"/>
+            </group>
+          </if>
+        </choose>
+      </else-if>
+    </choose>
+  </macro>
+  <citation et-al-min="3" et-al-use-first="1" disambiguate-add-givenname="true" disambiguate-add-year-suffix="true" collapse="year" cite-group-delimiter=", ">
+    <sort>
+      <key macro="author"/>
+      <key macro="year-date" sort="descending"/>
+    </sort>
+    <layout prefix="(" suffix=")" delimiter="; ">
+      <group delimiter=", ">
+        <text macro="author-short"/>
+        <text macro="year-date"/>
+        <group delimiter=" ">
+          <label variable="locator" form="short"/>
+          <text variable="locator"/>
+        </group>
+      </group>
+    </layout>
+  </citation>
+  <bibliography entry-spacing="0" et-al-min="7" et-al-use-first="6">
+    <sort>
+      <key macro="author"/>
+      <key macro="year-date" sort="descending"/>
+    </sort>
+    <layout suffix=".">
+      <text macro="author" suffix=". "/>
+      <choose>
+        <if type="bill book graphic legal_case legislation motion_picture report song" match="any">
+          <group delimiter=". ">
+            <text variable="title"/>
+            <text variable="volume" prefix="vol. "/>
+            <text macro="edition"/>
+            <text macro="publisher"/>
+          </group>
+        </if>
+        <else-if type="chapter paper-conference" match="any">
+          <group delimiter=", ">
+            <group delimiter=". ">
+              <text variable="title"/>
+              <group>
+                <text term="in" text-case="sentence" suffix=": "/>
+                <text macro="editor"/>
+              </group>
+              <group delimiter=", ">
+                <text variable="container-title" form="short"/>
+                <text variable="volume" prefix="vol. "/>
+              </group>
+              <text macro="edition"/>
+            </group>
+            <text macro="publisher"/>
+            <group delimiter=" ">
+              <label variable="page" form="short" plural="never"/>
+              <text variable="page"/>
+            </group>
+          </group>
+        </else-if>
+        <else-if type="patent">
+          <group delimiter=", ">
+            <group delimiter=". ">
+              <text variable="title"/>
+              <text variable="number"/>
+            </group>
+            <text macro="year-date"/>
+          </group>
+        </else-if>
+        <else-if type="thesis">
+          <group delimiter=". ">
+            <text variable="title"/>
+            <text variable="genre"/>
+            <group delimiter=", ">
+              <text variable="publisher"/>
+              <text macro="year-date"/>
+            </group>
+          </group>
+        </else-if>
+        <else>
+          <group delimiter=":">
+            <group delimiter=" ">
+              <group delimiter=". ">
+                <text variable="title"/>
+                <text variable="container-title" form="short" text-case="title" strip-periods="true"/>
+              </group>
+              <group delimiter=";">
+                <text macro="year-date"/>
+                <text variable="volume"/>
+              </group>
+            </group>
+            <text variable="page" form="short"/>
+          </group>
+        </else>
+      </choose>
+      <text macro="access" prefix=". "/>
+    </layout>
+  </bibliography>
+</style>
diff --git a/lxl-web/src/lib/utils/citation.ts b/lxl-web/src/lib/utils/citation.ts
index 80e71c9dd6..052331a0c0 100644
--- a/lxl-web/src/lib/utils/citation.ts
+++ b/lxl-web/src/lib/utils/citation.ts
@@ -25,6 +25,10 @@ export const availableFormats = {
 		name: 'Harvard',
 		fullName: 'Harvard (Södertörns högskola — author-date/Harvard)'
 	},
+	elsevier_vancouver: {
+		name: 'Vancouver',
+		fullName: 'Elsevier - NLM/Vancouver (name-year)'
+	},
 	ris: {
 		name: 'RIS',
 		fileFormat: 'ris'
@@ -73,6 +77,12 @@ export async function initCite(locale: LocaleCode) {
 				return cite.format('bibliography', { template: 'oxford_umu', format: 'html', lang });
 			case 'harvard_sh':
 				return cite.format('bibliography', { template: 'harvard_sh', format: 'html', lang });
+			case 'elsevier_vancouver':
+				return cite.format('bibliography', {
+					template: 'elsevier_vancouver',
+					format: 'html',
+					lang
+				});
 			default:
 				console.warn('asked for unavailable format', name);
 				return '-';
@@ -97,7 +107,10 @@ async function loadCiteResources() {
 		// https://editor.citationstyles.org/styleInfo/?styleId=http%3A%2F%2Fwww.zotero.org%2Fstyles%2Fumea-university-oxford
 		oxford_umu: (await import('$lib/assets/csl/umea-university-oxford.csl?raw')).default,
 		// https://editor.citationstyles.org/styleInfo/?styleId=http%3A%2F%2Fwww.zotero.org%2Fstyles%2Fsodertorns-hogskola-harvard
-		harvard_sh: (await import('$lib/assets/csl/sodertorns-hogskola-harvard.csl?raw')).default
+		harvard_sh: (await import('$lib/assets/csl/sodertorns-hogskola-harvard.csl?raw')).default,
+		// https://editor.citationstyles.org/styleInfo/?styleId=http%3A%2F%2Fwww.zotero.org%2Fstyles%2Felsevier-vancouver-author-date
+		elsevier_vancouver: (await import('$lib/assets/csl/elsevier-vancouver-author-date.csl?raw'))
+			.default
 	};
 
 	// https://github.com/citation-js/citation-js/tree/main/packages/plugin-csl