Spice throws error at midline semicolon comments

[Br1tt21]

In the same fashion as #1681, some spice dialects use semicolon to accept a comment mid line, like this:
.param sky130_fd_pr__nfet_05v0_nvt__vth0_slope=0.0012 ; All devices
This currently throws error RuntimeError: Expected a word string here: ;
Could this be implemented in KLayout's spice reader?

[klayoutmatthias]

It can, but you won't get it that cheaply :)

There are other observations about netlist features, and a code sweep deserves more than a trivial patch.

Here are some:

• CDL appears to put a slash between nets a model/subcircuit name, like here:

XI1 VGND VNB VPB VPWR net59 LO / sky130_fd_sc_hd__conb_1

• a backslash is sometimes used to escape special characters like "[":

X_4255_ GCDdpath0.B_reg\[106\] net136 _2156_ VGND VGND VPWR VPWR _2157_ sky130_fd_sc_hd__mux2_1

what else?

Matthias

[Br1tt21]

Wish I could add more, but this was the only thing I ran into. Just working with this for my internship project, so I'm not all that experienced.

On a semi-related note though, with this project I had trouble getting the LVS to run due to a coupling component (NGSpice manual 3.3.12). Ended up removing it because it didn't matter for the layout, but it's part of a model so that's not really ideal. I couldn't make an issue on that repository so I thought I'd drop it here.

Anyway if I find anything related to this point, I'll add it!

[klayoutmatthias]

I see :)

No problem. Let me just wait a little and collect some more issues, if possible.

Thanks and best regards,

Matthias

[klayoutmatthias]

Should not be an issue any longer with 0.29.5