a tEDAx output module for gnetlist / lepton-netlist to use with pcb-rnd

diff --git a/scheme/gnet-tEDAx.scm b/scheme/gnet-tEDAx.scm
new file mode 100644 (file)
index 0000000..a53d124
--- /dev/null
+++ b/scheme/gnet-tEDAx.scm
@@ -0,0 +1,134 @@
+;;; gEDA - GPL Electronic Design Automation
+;;; gnetlist plug-in for tEDAx
+;;; Copyright (C) 2018 Bdale Garbee
+;;;
+;;; This program is free software; you can redistribute it and/or modify
+;;; it under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 2 of the License, or
+;;; (at your option) any later version.
+;;;
+;;; This program is distributed in the hope that it will be useful,
+;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with this program; if not, write to the Free Software
+;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+;;; MA 02111-1301 USA.
+
+;; --------------------------------------------------------------------------
+
+;;
+;; returns the device attribute value
+;;
+(define tEDAx:get-device
+   (lambda (package)
+      (gnetlist:get-package-attribute package "device")))
+
+;;
+;; returns the footprint attribute value (PATTERN if not defined)
+;;
+(define tEDAx:get-pattern
+   (lambda (package)
+      (define pattern (gnetlist:get-package-attribute package "footprint"))
+      (if (string=? "unknown" pattern)
+         "PATTERN"
+         pattern)))
+; how do i return "PATTERN" if not defined? humm... need to read some
+; guile stuff... i did, and see the result :)
+
+;;
+;; returns the value attribute (empty if not defined)
+;;
+(define tEDAx:get-value
+   (lambda (package)
+      (define value (gnetlist:get-package-attribute package "value"))
+      (if (string=? "unknown" value)
+         ""
+        value)))
+ 
+;;
+;; header
+;;
+(define tEDAx:header
+   (lambda (port)
+      (display "tEDAx v1" port) 
+      (newline port)
+
+      (display "begin netlist v1 " port)
+      (display "projectname" port)
+      (newline port)
+      (newline port)))
+
+;;
+;; trailer
+;;
+(define tEDAx:trailer
+   (lambda (port)
+      (display "end netlist" port) 
+      (newline port)))
+
+;;
+;; component related lines 
+;;
+(define tEDAx:components
+   (lambda (port ls)
+      (if (not (null? ls))
+         (let ((package (car ls)))
+            (begin
+               (display "\tfootprint " port)
+               (display package port)
+               (display " " port)
+               (display (tEDAx:get-pattern package) port)
+               (newline port)
+
+               (display "\tdevice " port)
+               (display package port)
+               (display " " port)
+               (display (tEDAx:get-device package) port)
+               (newline port)
+
+               (display "\tvalue " port)
+               (display package port)
+               (display " " port)
+               (display (tEDAx:get-value package) port)
+               (newline port)
+
+               (newline port)
+               (tEDAx:components port (cdr ls)))))))
+
+(define (tEDAx:pinfmt pin)
+  (format #f "~a ~a" (car pin) (car (cdr pin)))
+  )
+
+(define (tEDAx:each-pin net pins port)
+  (if (not (null? pins))
+      (let ((pin (car pins)))
+        (format port "\tconn ~a ~a~%" net (tEDAx:pinfmt pin))
+        (tEDAx:each-pin net (cdr pins) port))))
+
+;;
+;; network related lines 
+;;
+(define (tEDAx:each-net netnames port)
+  (if (not (null? netnames))
+      (let ((netname (car netnames)))
+        (tEDAx:each-pin netname (gnetlist:get-all-connections netname) port)
+        (tEDAx:each-net (cdr netnames) port))))
+
+;;; 
+;;; output a tEDAx formatted netlist
+;;;
+(define tEDAx
+   (lambda (output-filename)
+      (let ((port (open-output-file output-filename)))
+         (begin
+           (tEDAx:header port)
+           (tEDAx:components port packages)
+           (tEDAx:each-net (gnetlist:get-all-unique-nets "dummy") port)
+           (tEDAx:trailer port))
+        (close-output-port port))))
+
+;; --------------------------------------------------------------------------
+