These functions write a Read structure into a trace file. The principle
format support is the SCF format. Although reading is supported for ABI and
ALF, writing is not. Additionally, it is possible to write using the plain
(old) staden format files or as Experiment files. In both these cases only the
sequence component of the trace file will be written.
When writing as an experiment file the QL, QR and SQ fields are generated from
the Read structure. If we previously created the Read structure
from reading an experiment file then the original experiment file data is also
written. Otherwise EN, ID, LN and LT lines are also generated.
write_reading() writes a Read structure to the specified filename in the specified
format. Formats available are
TT_EXP. Specifying format TT_ANY will be treated as TT_SCF.
fwrite_reading() writes a Read structure to the specified FILE pointer in the specified
format. Apart from writing to FILE pointer instead of a filename, the function
is identical to write_reading().