Reading BTL file with blank lines in header

[upsonp]

I've run into an issue reading a BTL file using the read.from_btl() function. The error occurred because there are blank lines in the header of the BTL file:

22102006.txt

...
30: * 7 external voltages sampled
31: * stored voltage # 0 = external voltage 0
32: * stored voltage # 1 = external voltage 1
33: * stored voltage # 2 = external voltage 2
34: * stored voltage # 3 = external voltage 3
35: * stored voltage # 4 = external voltage 4
36: * stored voltage # 5 = external voltage 5
37: * stored voltage # 6 = external voltage 6
38: *
39: 
40: * S>
41: * dh
42: * cast 0  03/31 06:45:17  smpls 0 to 10459  nv = 7  avg = 1  stp = switch of
43: 
44: * S>
45: # interval = seconds: 0.125
46: # start_time = Mar 31 2022 06:45:17 [Instrument's time stamp, header]
...

On line 39 a blank line is encountered, which activates this section of the read._parser_sea_save() function (line 169)

        else:  # btl.
            # There is no *END* like in a .cnv file, skip two after header info.
            if not (line.startswith("*") | line.startswith("#")):
                # Fix commonly occurring problem when Sbeox.* exists in the file
                # the name is concatenated to previous parameter
                # example:
                #   CStarAt0Sbeox0Mm/Kg to CStarAt0 Sbeox0Mm/Kg (really two different params)
                line = re.sub(r"(\S)Sbeox", "\\1 Sbeox", line)

                names = line.split()
                skiprows = k + 2
                break

Of course it hits the break and the rest of the file isn't read.

Any advice?

I have several thoughts on how we could solve this, but I don't want to modify something that will break the code for others.

Just spit balling, but a simple solution is to just make sure the line isn't a blank line

current code

        else:  # btl.
            # There is no *END* like in a .cnv file, skip two after header info.
            if not (line.startswith("*") | line.startswith("#")):
                # Fix commonly occurring problem when Sbeox.* exists in the file
                # the name is concatenated to previous parameter
                # example:
                #   CStarAt0Sbeox0Mm/Kg to CStarAt0 Sbeox0Mm/Kg (really two different params)
                line = re.sub(r"(\S)Sbeox", "\\1 Sbeox", line)

                names = line.split()
                skiprows = k + 2

modified code

        else:  # btl.
            # There is no *END* like in a .cnv file, skip two after header info.
            if line != '' and not (line.startswith("*") | line.startswith("#")):
                # Fix commonly occurring problem when Sbeox.* exists in the file
                # the name is concatenated to previous parameter
                # example:
                #   CStarAt0Sbeox0Mm/Kg to CStarAt0 Sbeox0Mm/Kg (really two different params)
                line = re.sub(r"(\S)Sbeox", "\\1 Sbeox", line)

                names = line.split()
                skiprows = k + 2

[upsonp]

This issue was resolved.