Eeschema: Dialog BOM: minor fix in help doc, and a minor enhancement (the plugin name with %P in name is correctly found to display its help and to edit it)

eeschema/dialogs/dialog_bom.cpp

@@ -558,6 +558,14 @@ wxString DIALOG_BOM::getPluginFileName(  const wxString& aCommand )
         }
     }
 
+    // Using a format like %P is possible in  plugin name, so expand it
+    wxString prj_dir = Prj().GetProjectPath();
+
+    if( prj_dir.EndsWith( '/' ) || prj_dir.EndsWith( '\\' ) )
+        prj_dir.RemoveLast();
+
+    pluginName.Replace( wxT( "%P" ), prj_dir.GetData(), true );
+
     return pluginName;
 }
 

eeschema/dialogs/dialog_bom_help.html

@@ -158,7 +158,7 @@ a Python script is used, the command line is something like
 (depending on the Python script):</font></font></p>
 <p lang="en-US" class="western" style="margin-bottom: 0cm; widows: 0; orphans: 0; page-break-before: auto; page-break-after: auto">
 <font face="Times New Roman, serif"><font size="3" style="font-size: 12pt"><i>python</i>
-<i>f:/kicad\bin/plugins/bom-in-python/myconverter.py</i>
+<i>f:/kicad/bin/plugins/bom-in-python/myconverter.py</i>
 &ldquo;<i>%I&rdquo;&ldquo;%O&rdquo;<br>or<br>python</i>
 <i>/usr/local/kicad/bin/plugins/bom-in-python/myconverter .xsl &ldquo;%I&rdquo;
 &ldquo;%O&rdquo; </i></font></font>
@@ -173,8 +173,7 @@ supported formatting parameters are.</font></font></p>
 	<li/>
 <p lang="en-US" class="western" style="margin-bottom: 0cm; widows: 0; orphans: 0; page-break-before: auto; page-break-after: auto">
 	<font face="Times New Roman, serif"><font size="3" style="font-size: 12pt"><b>%B</b>
-	=&gt; base filename and path of selected output file, minus path and
-	extension.</font></font></p>
+	=&gt; base filename of selected output file, minus path and extension.</font></font></p>
 	<li/>
 <p lang="en-US" class="western" style="margin-bottom: 0cm; widows: 0; orphans: 0">
 	<font face="Times New Roman, serif"><font size="3" style="font-size: 12pt"><b>%P</b>
@@ -280,4 +279,4 @@ python is installed on your PC, and python scripts are located in
 
 </p>
 </body>
-</html>
+</html>

eeschema/netlist_exporters/netlist_exporter.cpp

@@ -50,6 +50,12 @@
 wxString NETLIST_EXPORTER::MakeCommandLine( const wxString& aFormatString,
             const wxString& aTempfile, const wxString& aFinalFile, const wxString& aProjectPath )
 {
+    // Expand format symbols in the command line:
+    // %B => base filename of selected output file, minus path and extension.
+    // %P => project directory name, without trailing '/' or '\'.
+    // %I => full filename of the input file (the intermediate net file).
+    // %O => complete filename and path (but without extension) of the user chosen output file.
+
     wxString    ret  = aFormatString;
     wxFileName  in   = aTempfile;
     wxFileName  out  = aFinalFile;