Add support for adding HTML links to the texts visible on the generat…

…ed graphs

GraphViz does not support the a HTML tag when generating the tables for the
cables/connectors, so this change will remove these tags for the graph generation.
However for the HTML BoM output table these links will be generated.

src/wireviz/Harness.py

@@ -8,7 +8,7 @@
 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, open_file_read, open_file_write, \
-    manufacturer_info_field
+    manufacturer_info_field, remove_links
 from collections import Counter
 from typing import List
 from pathlib import Path
@@ -90,8 +90,8 @@ def create_graph(self) -> Graph:
 
             html = []
 
-            rows = [[connector.name if connector.show_name else None],
-                    [f'P/N: {connector.pn}' if connector.pn else None,
+            rows = [[remove_links(connector.name) if connector.show_name else None],
+                    [f'P/N: {remove_links(connector.pn)}' if connector.pn else None,
                      html_line_breaks(manufacturer_info_field(connector.manufacturer, connector.mpn))],
                     [html_line_breaks(connector.type),
                      html_line_breaks(connector.subtype),
@@ -161,8 +161,8 @@ def create_graph(self) -> Graph:
                 elif cable.gauge_unit.upper() == 'AWG':
                     awg_fmt = f' ({mm2_equiv(cable.gauge)} mm\u00B2)'
 
-            rows = [[cable.name if cable.show_name else None],
-                    [f'P/N: {cable.pn}' if (cable.pn and not isinstance(cable.pn, list)) else None,
+            rows = [[remove_links(cable.name) if cable.show_name else None],
+                    [f'P/N: {remove_links(cable.pn)}' if (cable.pn and not isinstance(cable.pn, list)) else None,
                      html_line_breaks(manufacturer_info_field(
                         cable.manufacturer if not isinstance(cable.manufacturer, list) else None,
                         cable.mpn if not isinstance(cable.mpn, list) else None))],
@@ -204,10 +204,10 @@ def create_graph(self) -> Graph:
                     # create a list of wire parameters
                     wireidentification = []
                     if isinstance(cable.pn, list):
-                        wireidentification.append(f'P/N: {cable.pn[i - 1]}')
+                        wireidentification.append(f'P/N: {remove_links(cable.pn[i - 1])}')
                     manufacturer_info = manufacturer_info_field(
-                        cable.manufacturer[i - 1] if isinstance(cable.manufacturer, list) else None,
-                        cable.mpn[i - 1] if isinstance(cable.mpn, list) else None)
+                        remove_links(cable.manufacturer[i - 1]) if isinstance(cable.manufacturer, list) else None,
+                        remove_links(cable.mpn[i - 1]) if isinstance(cable.mpn, list) else None)
                     if manufacturer_info:
                         wireidentification.append(html_line_breaks(manufacturer_info))
                     # print parameters into a table row under the wire

src/wireviz/wv_helper.py

@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 
 from typing import List
+import re
 
 awg_equiv_table = {
     '0.09': '28',
@@ -106,15 +107,18 @@ def tuplelist2tsv(inp, header=None):
         inp.insert(0, header)
     inp = flatten2d(inp)
     for row in inp:
-        output = output + '\t'.join(str(item) for item in row) + '\n'
+        output = output + '\t'.join(str(remove_links(item)) for item in row) + '\n'
     return output
 
 # Return the value indexed if it is a list, or simply the value otherwise.
 def index_if_list(value, index):
     return value[index] if isinstance(value, list) else value
 
+def remove_links(inp):
+    return re.sub(r'<[aA] [^>]*>([^<]*)</[aA]>', r'\1', inp) if isinstance(inp, str) else inp
+
 def html_line_breaks(inp):
-    return inp.replace('\n', '<br />') if isinstance(inp, str) else inp
+    return remove_links(inp).replace('\n', '<br />') if isinstance(inp, str) else inp
 
 def graphviz_line_breaks(inp):
     return inp.replace('\n', '\\n') if isinstance(inp, str) else inp # \n generates centered new lines. http://www.graphviz.org/doc/info/attrs.html#k:escString