# else ->
# sys.stderr +:= error message
# stop execution ]
try:
ra_hours = sdr.parse_hours(raw_ra)
ra = sdr.hours_to_radians(ra_hours)
except SyntaxError, detail:
usage("Right ascension '{raw_ra}' should have the form 'NNh[NNm[NN.NNNs]]'.".format(raw_ra=raw_ra))
#-- 4 --
# [ if raw_dec is a valid angle expression ->
# abs_dec := that angle in radians
# sys.stderr +:= error message
# stop execution ]
try:
abs_dec = sdr.parse_angle(raw_dec)
except SyntaxError, detail:
usage("Right ascension '{raw_ra}' should have the form 'NNd[NNm[NN.NNNs]]'.".format(raw_ra=raw_ra))
#-- 5 --
if sign == '-':
dec = -abs_dec
else:
dec = abs_dec
#-- 6 --
return sdr.ra_dec(ra, dec)
#================================================================
# Epilogue
#----------------------------------------------------------------
if __name__ == '__main__':
