/usr/share/texmf/tex4ht/xtpipes/xtpipes-map.dtd is in tex4ht-common 20090611-1.1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | <!-- xtpipes-map.dtd (2009-01-27-22:19) -->
<!ELEMENT xtpipes-map (when | processing-instruction
| select
| command-line)* >
<!ELEMENT when (when | select
| processing-instruction
| command-line )* >
<!ELEMENT select EMPTY >
<!ELEMENT processing-instruction EMPTY >
<!ELEMENT command-line EMPTY >
<!ATTLIST xtpipes-map
signature CDATA #IMPLIED
>
<!ATTLIST when
name (
system-id
| public-id
| dtd-root
| root
| ext
| meta-type
| content-type
| prefix ) "public-id"
value CDATA #IMPLIED
case-sensitive (yes|no) "no"
>
<!ATTLIST select
name CDATA #REQUIRED
>
|