49 lines
1.4 KiB
Python
49 lines
1.4 KiB
Python
__version__ = "0.1.0"
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__author__ = "Tabledevil <tabledevil@gmail.com>"
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from visidata import Sheet, BaseSheet, vd
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@Sheet.api
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def hide_empty_and_superfluous_cols(sheet):
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"""
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Given a sheet, hides columns that are empty or superfluous (contain the same
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value in every row).
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"""
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counter = 0
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# Iterate over a snapshot; hiding columns mutates sheet.visibleCols.
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for col in list(sheet.visibleCols):
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if not col.width or col.width <= 0:
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continue
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# Single pass over rows: track emptiness and distinct non-empty values.
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all_empty = True
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nonempty_vals = set()
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for row in sheet.rows:
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v = col.getValue(row)
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if v in (None, "", "null"):
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continue
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all_empty = False
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nonempty_vals.add(str(v))
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if len(nonempty_vals) > 1:
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break
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if all_empty or len(nonempty_vals) == 1:
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col.width = 0
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counter += 1
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if counter:
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vd.status(f"Hid {counter} empty/superfluous columns.")
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else:
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vd.status("No empty/superfluous columns to hide.")
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Sheet.addCommand(
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None,
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"tke-hidecol",
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"sheet.hide_empty_and_superfluous_cols()",
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helpstr="Hide columns that are empty or have the same value in every row.",
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)
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# Make the command discoverable in the top menu bar (no default keybinding).
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vd.addMenuItem("Column", "Hide", "empty/superfluous columns", "tke-hidecol")
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