FixedWidthHeader

class astropy.io.ascii.FixedWidthHeader[source] [edit on github]

Bases: astropy.io.ascii.BasicHeader

Fixed width table header reader.

Attributes Summary

position_line row index of line that specifies position (default = 1)
set_of_position_line_characters

Methods Summary

get_cols(lines) Initialize the header Column objects from the table lines.
get_fixedwidth_params(line) Split line on the delimiter and determine column values and column start and end positions.
get_line(lines, index)
write(lines)

Attributes Documentation

position_line = None

row index of line that specifies position (default = 1)

set_of_position_line_characters = {'\\', '^', '~', '%', '_', '`', '-', '!', '|', '*', '&', '=', '#', ':', "'", '+', '$', '"'}

Methods Documentation

get_cols(lines)[source] [edit on github]

Initialize the header Column objects from the table lines.

Based on the previously set Header attributes find or create the column names. Sets self.cols with the list of Columns.

Parameters:
lines : list

List of table lines

get_fixedwidth_params(line)[source] [edit on github]

Split line on the delimiter and determine column values and column start and end positions. This might include null columns with zero length (e.g. for header row = "| col1 || col2 | col3 |" or header2_row = "----- ------- -----"). The null columns are stripped out. Returns the values between delimiters and the corresponding start and end positions.

Parameters:
line : str

Input line

Returns:
vals : list

List of values.

starts : list

List of starting indices.

ends : list

List of ending indices.

get_line(lines, index)[source] [edit on github]
write(lines)[source] [edit on github]