From bb62d13b5dfce3f2b1f043390e94cf6bb189a19c Mon Sep 17 00:00:00 2001
From: shirazos7 <shiraz@zbmath.org>
Date: Mon, 23 Dec 2024 14:37:46 +0100
Subject: [PATCH 1/4] adding the template of year

---
 xslt/software/xslt-software-OpenAire.xslt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/xslt/software/xslt-software-OpenAire.xslt b/xslt/software/xslt-software-OpenAire.xslt
index 2abfbe9..ed8641e 100644
--- a/xslt/software/xslt-software-OpenAire.xslt
+++ b/xslt/software/xslt-software-OpenAire.xslt
@@ -58,6 +58,7 @@ Content generated by zbMATH Open, such as reviews, classifications, software, or
            <dc:language>eng</dc:language>
            <xsl:apply-templates select="root/standard_articles/source"/>
            <xsl:apply-templates select="root/standard_articles/title"/>
+           <xsl:apply-templates select="root/standard_articles/year"/>
 
   </resource>
 
@@ -155,5 +156,11 @@ Content generated by zbMATH Open, such as reviews, classifications, software, or
     </xsl:if>
 </xsl:template>
 
+     <xsl:template match="year">
+      <datacite:date dateType="Issued">
+          <xsl:value-of select="."/>
+      </datacite:date>
+    </xsl:template>
+
 
 </xsl:stylesheet>
\ No newline at end of file

From 81ef11b3a2086101ea0197e2382baea487fa8ea4 Mon Sep 17 00:00:00 2001
From: shirazos7 <shiraz@zbmath.org>
Date: Mon, 23 Dec 2024 14:38:24 +0100
Subject: [PATCH 2/4] adding the property of year

---
 test/data/software/OpenAire-software-reference.xml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/test/data/software/OpenAire-software-reference.xml b/test/data/software/OpenAire-software-reference.xml
index 65d58af..e9621c2 100644
--- a/test/data/software/OpenAire-software-reference.xml
+++ b/test/data/software/OpenAire-software-reference.xml
@@ -173,4 +173,5 @@ Content generated by zbMATH Open, such as reviews, classifications, software, or
    <dc:language>eng</dc:language>
    <dc:source>zbMATH Open Web Interface contents unavailable due to conflicting licenses.</dc:source>
    <oaire:citationTitle>zbMATH Open Web Interface contents unavailable due to conflicting licenses.</oaire:citationTitle>
+   <datacite:date dateType="Issued">2003</datacite:date>
 </resource>

From 1190f0721374551abecc94af4e024c2ff04eae90 Mon Sep 17 00:00:00 2001
From: shirazos7 <shiraz@zbmath.org>
Date: Mon, 23 Dec 2024 14:55:41 +0100
Subject: [PATCH 3/4] adjusting the template

---
 xslt/software/xslt-software-OpenAire.xslt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xslt/software/xslt-software-OpenAire.xslt b/xslt/software/xslt-software-OpenAire.xslt
index ed8641e..6231343 100644
--- a/xslt/software/xslt-software-OpenAire.xslt
+++ b/xslt/software/xslt-software-OpenAire.xslt
@@ -157,9 +157,11 @@ Content generated by zbMATH Open, such as reviews, classifications, software, or
 </xsl:template>
 
      <xsl:template match="year">
+          <xsl:if test="normalize-space(.) != '' and . != 'None'">
       <datacite:date dateType="Issued">
           <xsl:value-of select="."/>
       </datacite:date>
+         </xsl:if>
     </xsl:template>
 
 

From c4af359ad8cba00d20ba3c441deac7b9ffd18928 Mon Sep 17 00:00:00 2001
From: shirazos7 <shiraz@zbmath.org>
Date: Mon, 23 Dec 2024 15:08:24 +0100
Subject: [PATCH 4/4] adding if statement to the subjects and source templates

---
 xslt/software/xslt-software-OpenAire.xslt | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/xslt/software/xslt-software-OpenAire.xslt b/xslt/software/xslt-software-OpenAire.xslt
index 6231343..41ba375 100644
--- a/xslt/software/xslt-software-OpenAire.xslt
+++ b/xslt/software/xslt-software-OpenAire.xslt
@@ -25,10 +25,12 @@
                  </datacite:titles>
                 <xsl:apply-templates select="root/description"/>
 
-           <datacite:subjects>
-                <xsl:apply-templates select="root/classification"/>
-                <xsl:apply-templates select="root/keywords"/>
-            </datacite:subjects>
+              <xsl:if test="root/classification[normalize-space(.) != '' and . != 'None'] or root/keywords[normalize-space(.) != '' and . != 'None']">
+        <datacite:subjects>
+            <xsl:apply-templates select="root/classification"/>
+            <xsl:apply-templates select="root/keywords"/>
+        </datacite:subjects>
+           </xsl:if>
 
              <datacite:relatedIdentifiers>
                 <xsl:apply-templates select="root/standard_articles/id"/>
@@ -111,7 +113,7 @@ Content generated by zbMATH Open, such as reviews, classifications, software, or
           <xsl:if test="normalize-space(.) != '' and . != 'None'">
         <datacite:subject subjectScheme="msc2020" >
             <xsl:value-of select="."/>
-        </datacite:subject>
+              </datacite:subject>
           </xsl:if>
         </xsl:template>
 
@@ -127,9 +129,11 @@ Content generated by zbMATH Open, such as reviews, classifications, software, or
 
 
  <xsl:template match="source">
+     <xsl:if test="normalize-space(.) != '' and . != 'None'">
     <dc:source>
     <xsl:value-of select="."/>
     </dc:source>
+     </xsl:if>
     </xsl:template>
 
      <xsl:template match="title">