Remove obsolete nesting function, fine-tune table generating behavior

src/wireviz/Harness.py

@@ -4,7 +4,7 @@
 from wireviz.DataClasses import Connector, Cable
 from graphviz import Graph
 from wireviz import wv_colors
-from wireviz.wv_helper import awg_equiv, mm2_equiv, tuplelist2tsv, nested, \
+from wireviz.wv_helper import awg_equiv, mm2_equiv, tuplelist2tsv, \
     nested_html_table, flatten2d, index_if_list, html_line_breaks, \
     graphviz_line_breaks, remove_line_breaks
 from collections import Counter
@@ -91,7 +91,6 @@ class Harness:
                         f'MPN: {connector.manufacturer_part_number}' if connector.manufacturer_part_number else None,
                         f'IPN: {connector.internal_part_number}' if connector.internal_part_number else None],
                         [html_line_breaks(connector.notes)]]
-                rows = [list(filter(None, row)) for row in rows] # remove missing attributes
                 html = nested_html_table(rows)
 
                 if connector.color: # add color bar next to color info, if present

src/wireviz/wv_helper.py

@@ -30,20 +30,6 @@ def awg_equiv(mm2):
 def mm2_equiv(awg):
     return mm2_equiv_table.get(str(awg), 'Unknown')
 
-def nested(inp):
-    l = []
-    for x in inp:
-        if isinstance(x, list):
-            if len(x) > 0:
-                n = nested(x)
-                if n != '':
-                    l.append('{' + n + '}')
-        else:
-            if x is not None:
-                if x != '':
-                    l.append(str(x))
-    return '|'.join(l)
-
 def nested_html_table(rows):
     # input: list, each item may be scalar or list
     # output: a parent table with one child table per parent item that is list, and one cell per parent item that is scalar
@@ -57,7 +43,7 @@ def nested_html_table(rows):
                     if cell is not None:
                         html = f'{html}<td balign="left">{cell}</td>'
                 html = f'{html}</tr></table></td></tr>'
-        else:
+        elif row is not None:
             html = f'{html}<tr><td>{row}</td></tr>'
     html = f'{html}</table>'
     return html