1 files changed, 51 insertions, 0 deletions
diff --git a/tex/context/interface/mkiv/i-common-value.xml b/tex/context/interface/mkiv/i-common-value.xml
index c362779c4..22db8a1b6 100644
--- a/tex/context/interface/mkiv/i-common-value.xml
+++ b/tex/context/interface/mkiv/i-common-value.xml
@@ -683,4 +683,55 @@
         <cd:constant type="cd:name"/>
     </cd:define>
 
+    <!-- blank -->
+
+    <cd:define name="value-blank">
+        <cd:constant type="preference"/>
+        <cd:constant type="samepage"/>
+        <cd:constant type="max"/>
+        <cd:constant type="force"/>
+        <cd:constant type="enable"/>
+        <cd:constant type="disable"/>
+        <cd:constant type="nowhite"/>
+        <cd:constant type="packed"/>
+        <cd:constant type="back"/>
+        <cd:constant type="overlay"/>
+        <cd:constant type="always"/>
+        <cd:constant type="weak"/>
+        <cd:constant type="strong"/>
+        <cd:constant type="default"/>
+        <cd:constant type="before"/>
+        <cd:constant type="inbetween"/>
+        <cd:constant type="after"/>
+        <cd:constant type="fixed"/>
+        <cd:constant type="flexible"/>
+        <cd:constant type="none"/>
+        <cd:constant type="small"/>
+        <cd:constant type="medium"/>
+        <cd:constant type="big"/>
+        <cd:constant type="line"/>
+        <cd:constant type="halfline"/>
+        <cd:constant type="quarterline"/>
+        <cd:constant type="formula"/>
+        <cd:constant type="white"/>
+        <cd:constant type="height"/>
+        <cd:constant type="depth"/>
+        <cd:constant type="standard"/>
+        <cd:constant type="small" prefix="cd:number" method="factor"/>
+        <cd:constant type="medium" prefix="cd:number" method="factor"/>
+        <cd:constant type="big" prefix="cd:number" method="factor"/>
+        <cd:constant type="line" prefix="cd:number" method="factor"/>
+        <cd:constant type="halfline" prefix="cd:number" method="factor"/>
+        <cd:constant type="quarterline" prefix="cd:number" method="factor"/>
+        <cd:constant type="formula" prefix="cd:number" method="factor"/>
+        <cd:constant type="white" prefix="cd:number" method="factor"/>
+        <cd:constant type="height" prefix="cd:number" method="factor"/>
+        <cd:constant type="depth" prefix="cd:number" method="factor"/>
+        <cd:constant type="cd:number" prefix="category" method="range"/>
+        <cd:constant type="cd:number" prefix="order" method="range"/>
+        <cd:constant type="cd:number" prefix="penalty" method="range"/>
+        <cd:constant type="cd:dimension"/>
+        <cd:constant type="cd:name"/>
+    </cd:define>
+
 </cd:interface>