def file_is_not_old_seplib_cmplx(f_nm):
'Checks if a file has esize=8 and data_format=xdr_float'
esize = sf.get(f_nm, 'esize')
data_format = sf.get(f_nm, 'data_format')
if esize == '8' and data_format == 'xdr_float':
return False
else:
return True
def main(par):
f_nm = par.string('file') # Name of file to process
preserve_t = par.bool('preserve_t', True) # Whether to preserve timestamp
verb = par.bool('verb', False) # Say if file was converted or unchanged
ivlad.chk_file_r(f_nm)
if file_is_not_old_seplib_cmplx(f_nm):
ivlad.msg(f_nm + ': Conversion not necessary', verb)
return ivlad.unix_success
if not os.access(f_nm, os.W_OK):
# Not using an exception because this program may be called on long
# lists of files
ivlad.msg(f_nm + ': NEED WRITE PERMISSION', True)
return ivlad.unix_error
if preserve_t:
tstamp = get_timestamp(f_nm)
bptr = sf.get(f_nm, 'in') # Pointer to binary
if bptr == 'stdin': # Header and binary in a single file
__replace_last_dataformat_statement(f_nm)
else:
f = open(f_nm, 'a')
f.write('\n'+ooio.first_line_rsf_hdr_entry())
f.write('\tdata_format="xdr_complex"\n')
f.close()
if preserve_t:
os.utime(f_nm, tstamp)
ivlad.msg(f_nm + ': Converted', verb)
return ivlad.unix_success