subckt not included if .title exists

[Neusr]

Hello, I have a netlist for the 555 which I got from Oregano (attached). I am using gEDA (gschem, gnetlist) from deb packages [gEDA 1.8.2 (g875406c)].
1. Add a lm555-1.sym from the components catalogue in gschem.
 1.a Set X1 as the refdes
 1.b Set TLC555 as model-name
2. Add a spice-model-1.sym
 2.a A1 as refdes
 2.b TLC555 as model-name
 2.c TLC555.net as file
3. Save as untitled.sch
4. gnetlist -g spice-sdb -O sort_mode -o untitled.ckt untitled.sch

You will see that the TLC555 will not be added to your untitled.ckt netlist
If you open the TLC555.net and add an asterisk (*) to comment the .TITLE line at the beginning of the file, you can repeat the steps above to get the TLC555 in your new untitled.ckt netlist.

Conclusion: if the netlist of the .SUBCKT has a .TITLE at the beginning of the file, it will not be included.

[Roland Lutz (rlutz)]

The `spice-sdb' backend ignores model files unless the first directive is
either ".SUBCKT" or ".MODEL". I guess this should be changed to either

   * search the whole model file for those directives,
   * ignore certain metadata like ".TITLE" at the beginning of the file, or
   * remove the check entirely.

I don't know much about SPICE, though, so I'm not sure which behavior
would be most appropriate.