Read rlnTomoName as str

[EuanPyle]

As discussed in Issue #37, perhaps a little bit inelegant, but works.

[alisterburt]

Hey Euan, thanks for the PR but oooh no - we shouldn't hard code anything RELION related into the STAR file parser 😆

What I was proposing was an API like this starfile.read('my_file.star', parse_as_string=['rlnTomoName'])

You would then add some mechanism to the StarParser which took in those headers (maybe called parse_as_string there too)

starfile/src/starfile/parser.py

Line 26 in 5b19406

def __init__(self, filename: PathLike, n_blocks_to_read: Optional[int] = None):

When parsing loop blocks you would then change

starfile/src/starfile/parser.py

Line 113 in 5b19406

df_numeric = df.apply(pd.to_numeric, errors='ignore')

to iterate over the columns and individually apply to_numeric if the column name wasn't in that list

You would have to do a similar thing with simple data blocks here

starfile/src/starfile/parser.py

Lines 75 to 76 in 5b19406

	k, v = shlex.split(self.current_line)
	block[k[1:]] = numericise(v)

Does that make sense? You would then explicitly pass 'rlnTomoName' as a header to ignore when reading those files in RELION

[EuanPyle]

woops, I'm out of practice, that makes sense! will get back to it