CHECK_HEAD        507 src/composite.c   if (check_mask & CHECK_HEAD)
CHECK_HEAD        194 src/composite.h #define CHECK_BORDER	(CHECK_HEAD | CHECK_TAIL)
CHECK_HEAD        192 src/decompress.c       update_compositions (data->start, data->start, CHECK_HEAD);
CHECK_HEAD        335 src/decompress.c   update_compositions (istart, istart, CHECK_HEAD);
CHECK_HEAD       1786 src/insdel.c     update_compositions (from, from, CHECK_HEAD);
CHECK_HEAD       1828 src/insdel.c     update_compositions (from, from, CHECK_HEAD);
CHECK_HEAD       1872 src/insdel.c     update_compositions (from, from, CHECK_HEAD);