+Table: Custom data file attributes.
+Attribute,Value
+Attr1[1],Value1
+Attr1[2],'déclaration'
+SécondAttr[1],123
+SécondAttr[2],456
+]])
+ AT_DATA([sys-file.sps], [dnl
+GET FILE='sys-file.sav'.
+DISPLAY DICTIONARY.
+])
+ AT_CHECK([pspp -o pspp.csv sys-file.sps])
+ AT_CHECK([grep -v Measure pspp.csv | grep -v Display], [0],
+[[Variable,Description,,Position
+FirstVariable,Format: F8.0,,1
+,Role: Input,,
+,Custom attributes:,,
+,adèle[1],23,
+,adèle[2],34,
+,bert,123,
+SécondVariable,Format: F8.0,,2
+,Custom attributes:,,
+,xyzzy,quux,
+