add lefty, dotty, lneato to graphviz2 tree

diff --git a/cmd/lneato/lneato.1 b/cmd/lneato/lneato.1
new file mode 100644 (file)
index 0000000..95ab644
--- /dev/null
+++ b/cmd/lneato/lneato.1
@@ -0,0 +1,49 @@
+.TH LNEATO 1
+.SH NAME
+lneato \- A Customizable Graph Editor
+.SH SYNOPSIS
+.B lneato
+[
+.B -V
+] [
+.I file
+]
+.SH DESCRIPTION
+.B lneato
+is a graph editor for the X Window System.  It may be run as a standalone
+editor, or as a front end for applications that use graphs.  It can control
+multiple windows viewing different graphs.
+
+.B lneato
+is written on top of
+.B neato
+and
+.BR lefty .
+.B lefty
+is a general-purpose programmable editor for technical pictures.  It has an
+interpretive programming language similar to AWK and C.  The user interface and
+graph editing operations of
+.B lneato
+are written as
+.B lefty
+functions.
+Programmer-defined graph operations may be loaded as well.  Graph layouts are
+made by
+.BR neato ,
+which runs as a separate process that communicates with
+.B lefty
+through pipes.
+.SH USAGE
+The file name is optional. If present, the graph contained in that file is
+displayed in the
+.B lneato
+window.
+.SH OPTIONS
+.TP
+.B -V
+Prints the version.
+.SH SEE ALSO
+neato(1), lefty(1), dotty(1),
+.br
+.I dotty
+user guide.

diff --git a/cmd/lneato/lneato.bsh b/cmd/lneato/lneato.bsh
new file mode 100755 (executable)
index 0000000..ba88b1f
--- /dev/null
+++ b/cmd/lneato/lneato.bsh
@@ -0,0 +1,99 @@
+#!/bin/sh
+FILES=""
+MLEVEL="0"
+LMODE="async"
+usage="echo usage: lneato [-V] [-lm (sync|async)] [-el (0|1)] <filename>"
+
+if test "x$DOTTYOPTIONS" != "x"
+then
+    options=$DOTTYOPTIONS
+else
+    options="$@"
+fi
+
+set -- $options
+
+for i in "$@"
+do
+       if test "x$i" = "x$1"
+       then
+               case $i in
+               -V)
+                       shift
+                       echo "lneato version 95 (04-18-95)"
+                       ;;
+               -lm)
+                       shift
+                       LMODE="$1"
+                       shift
+                       if test "x$LMODE" != "xsync" -a "x$LMODE" != "xasync"
+                       then
+                               $usage
+                               exit 1
+                       fi
+                       ;;
+               -el)
+                       shift
+                       MLEVEL="$1"
+                       shift
+                       if test "x$MLEVEL" != "x0" -a "x$MLEVEL" != "x1"
+                       then
+                               $usage
+                               exit 1
+                       fi
+                       ;;
+               -?*)
+                       $usage
+                       exit 1
+                       ;;
+               *)
+                       FILES="$FILES '"$1"'"
+                       shift
+                       ;;
+               esac
+       fi
+done
+
+if test "x$MLEVEL" != "x0"
+then
+       echo "FILES  = $FILES"
+       echo "MLEVEL = $MLEVEL"
+       echo "LMODE  = $LMODE"
+fi
+
+if test "x$DOTTYPATH" != "x"
+then
+    LEFTYPATH="$DOTTYPATH:$LEFTYPATH"
+fi
+
+CMDS="dotty.layoutmode = '$LMODE';"
+CMDS="$CMDS dotty.mlevel = $MLEVEL; dot.mlevel =  $MLEVEL;"
+
+if test "x$FILES" = "x"
+then
+    FILES=null
+fi
+for i in $FILES
+do
+       CMDS="$CMDS dotty.createviewandgraph($i,'file',null,null);"
+done
+
+lefty -e "
+load ('dotty.lefty');
+
+checkpath = function () {
+       if (tablesize(dotty) > 0);      # because tablesize(undef) returns "" not 0
+       else {
+               echo('You must set LEFTYPATH to the lefty lib directory path name.');
+               exit();
+       }
+};
+checkpath ();
+
+dotty.protogt.lserver = 'neato';
+dotty.protogt.graph.type = 'graph';
+dotty.init ();
+monitorfile = dotty.monitorfile;
+$CMDS
+txtview ('off');
+"