Merge pull request #1963 from midichef/two_none_errors

[layout-] stop errors: hide-col on empty sheet, inputMultiple()

visidata/_input.py

@@ -388,7 +388,7 @@ def _throw(v, i):
 
             for k, v in kwargs.items():
                 promptlen = clipdraw(sheet._scr, y-v.get('dy'), 0, v.get('prompt'), attr, w=sheet.windowWidth-1)  #1947
-                promptlen = clipdraw(sheet._scr, y-v.get('dy'), promptlen, v.get('value'), attr, w=sheet.windowWidth-1)
+                promptlen = clipdraw(sheet._scr, y-v.get('dy'), promptlen, v.get('value', ''),  attr, w=sheet.windowWidth-1)
 
         try:
             input_kwargs = kwargs[cur_input_key]

visidata/features/layout.py

@@ -30,13 +30,17 @@ def unhide_cols(vd, cols, rows):
     for c in cols:
         c.setWidth(abs(c.width or 0) or c.getMaxWidth(rows))
 
+@VisiData.api
+def hide_col(vd, col):
+    if not col: vd.fail("no columns to hide")
+    col.hide()
 
 Sheet.addCommand('_', 'resize-col-max', 'cursorCol.toggleWidth(cursorCol.getMaxWidth(visibleRows))', 'toggle width of current column between full and default width')
 Sheet.addCommand('z_', 'resize-col-input', 'width = int(input("set width= ", value=cursorCol.width)); cursorCol.setWidth(width)', 'adjust width of current column to N')
 Sheet.addCommand('g_', 'resize-cols-max', 'for c in visibleCols: c.setWidth(c.getMaxWidth(visibleRows))', 'toggle widths of all visible columns between full and default width')
 Sheet.addCommand('gz_', 'resize-cols-input', 'width = int(input("set width= ", value=cursorCol.width)); Fanout(visibleCols).setWidth(width)', 'adjust widths of all visible columns to N')
 
-Sheet.addCommand('-', 'hide-col', 'cursorCol.hide()', 'Hide current column')
+Sheet.addCommand('-', 'hide-col', 'hide_col(cursorCol)', 'Hide current column')
 Sheet.addCommand('z-', 'resize-col-half', 'cursorCol.setWidth(cursorCol.width//2)', 'reduce width of current column by half')
 
 Sheet.addCommand('gv', 'unhide-cols', 'unhide_cols(columns, visibleRows)', 'Show all columns')