+#!/usr/bin/perl
+# ngspice2genspic - Copyright 2004 Ian Jackson - see below
+#
+# Reads the output from ngspice and outputs a `genspic' file
+# for use with genspic2gnuplot. Takes no arguments or options.
+#
+# Limitations
+#
+# Only frequency (.AC) and transient plots have been tested.
+#
+# Displaying voltages and currents on the same .TRAN graph won't work
+# well because they currently have to have the same Y scale.
+#
+# This whole scheme is very clumsy. There should be a driver program
+# with command-line option parsing.
+
+# This program and its documentation are free software; you can
+# redistribute them and/or modify them under the terms of the GNU
+# General Public License as published by the Free Software Foundation;
+# either version 2, or (at your option) any later version.
+#
+# This program and its documentation are distributed in the hope that
+# they 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.,
+# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+die if @ARGV;
+
+while (<STDIN>) {
+ if (m/^Total CPU/) {
+ die if $mode ne '';
+ $seentcpu=1;
+ } elsif (m/^Current dynamic memory/ ||
+ m/^Dynamic memory limit/ ||
+ m/^Level not specified/ ||
+ m/^Doing analysis/ ||
+ m/^CPU time since/ ||
+ m/^Circuit\:/) {
+ die if length $mode;
+ } elsif (m/\f/) {
+ die if m/\S/;
+ } elsif (!m/\S/ && $mode eq InitTransSkip) {
+ $mode= '';
+ } elsif (m/^Initial Transient/ && $mode eq '') {
+ $mode= InitTrans;
+ } elsif (m/^Node/ && $mode eq InitTrans) {
+ $mode= InitTransSkip;
+ } elsif (m/\w/ && $mode eq InitTransSkip) {
+ } elsif (m/^\-\-/ && length $mode) {
+ } elsif (m/^\s\s+(\w+) Analysis /) {
+ if ($mode eq '') {
+ $mode= Table;
+ $ctable= $1;
+ $dokey= 1;
+ } else {
+ $dokey= 0;
+ }
+ } elsif (m/^\s\s+/ && ($mode eq Table or !length $mode)) {
+ } elsif (m/^Index / && $mode eq Table) {
+ s/\s+$//;
+ ($index,$key,@nowheadings) = split /\s+/, $_;
+ $logxy= 0+($key eq 'frequency');
+ } elsif (m/^\d+\s/ && $mode eq Table) {
+ ($index,$key,@nowcolumns) = split /\s+/, $_;
+ shift @nowcolumns if $key =~ s/\,$//;
+ $coldata[$index] .= " $key" if $dokey;
+ $coldata[$index] .= " @nowcolumns";
+ if (!$index) {
+ foreach $c (@nowheadings) {
+ $h= 'y';
+ $h= 'y2' if $c =~ m/^ph\(/;
+ push @columns, "$h:$c";
+ }
+ }
+ } elsif (!m/\S/ && $mode eq Table) {
+ print "S $ctable $logxy @columns\n" or die $!;
+ foreach $l (@coldata) { printf "D%s\n", $l or die $!; }
+ print "T\n" or die $!;
+ $mode= '';
+ @columns= ();
+ @coldata= ();
+ } elsif (!m/\S/) {
+ $mode= '' if $mode eq InitTransSkip;
+ } else {
+ die "$mode: $_ ?";
+ }
+}
+die "no plots" unless defined $ctable;
+print "F\n" or die $!;
+
+# $Id: ngspice2genspic,v 1.1 2004-03-25 00:29:59 ianmdlvl Exp $