# echo-milestone
#
# This file is part of the ECHO Schema, version 1.0. See the main file "echo.rnc".


echo.milestone.class  = notAllowed
echo.p.class         |= echo.milestone.class
echo.plaintext.class |= echo.milestone.class

echo.break = attribute break { echo.break.types }
echo.break.types = "yes" | "no" | "space"


echo.lb = element lb { echo.lb.attlist, empty }
echo.lb.attlist = echo.break?
echo.milestone.class |= echo.lb 

# echo.lb.attlist <-- echo.label (in echo-textflows),
#                     echo.line.coordinates (in echo-ocr)

echo.cb = element cb { echo.cb.attlist, empty }
echo.cb.attlist = echo.break?, echo.cb.chead?
echo.cb.chead = attribute chead { text }
echo.milestone.class |= echo.cb 
echo.text.content-blocks.class       |= echo.cb

# echo.cb.attlist <-- echo.label (in echo-textflows)

echo.pb = element pb { echo.pb.attlist, empty }
echo.pb.attlist = echo.n.attrib, echo.pb.o?, echo.pb.o-norm?, 
                  echo.break?, 
                  echo.pb.rhead?, 
                  echo.file.attrib?, echo.external-link.attrib?
echo.pb.o      = attribute o { text }
echo.pb.o-norm = attribute o-norm { text }
echo.pb.rhead  = attribute rhead { text } 
               | attribute chead { text }
echo.milestone.class |= echo.pb
echo.text.content-blocks.class       |= echo.pb

# echo.pb.attlist <-- ics="yes", echo.flow