11 files changed, 737 insertions, 0 deletions
diff --git a/gnu/dist/sgmltools-lite/python/backends/Dvi.py b/gnu/dist/sgmltools-lite/python/backends/Dvi.py
new file mode 100644
index 00000000..dc2692d6
--- /dev/null
+++ b/gnu/dist/sgmltools-lite/python/backends/Dvi.py
@@ -0,0 +1,87 @@
+#
+#  backends/Dvi.py
+#
+#  $Id: Dvi.py,v 1.2 2000/08/03 12:38:57 cdegroot Exp $
+#
+#  SGMLtools DVI backend driver.
+#
+#  SGMLtools - an SGML toolkit.
+#  Copyright (C) 1998 Cees A. de Groot
+#
+#  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+from Backend import Backend, BackendGlobals
+from utils import registerTemp
+import os
+
+class Dvi(Backend):
+
+	def postJade(self, outfile, stdoutfile):
+
+	    #
+	    #  Looks like that from 1.1.8, jadetex writes output in cwd 
+	    #  instead of TMPDIR. No matter what jadetex chooses to do, 
+	    #  this will make sure it lands in TMPDIR. We set TEXINPUTS 
+	    #  so that included graphics are found.
+	    #
+	    savdir = os.getcwd()
+	    envname = 'TEXINPUTS'
+	    if os.environ.has_key(envname):
+		os.environ[envname] = '.:%s:%s' % (savdir, os.environ[envname])
+	    else:
+		os.environ[envname] = '.:%s:' % (savdir)
+	    (tmpdir, junk) = os.path.split(outfile)
+	    self._tracer.chdir(tmpdir)
+
+	    #
+	    #  Run JadeTeX on the generated file, thrice. 
+	    #
+	    (dvibase, junk) = os.path.splitext(outfile)
+	    destfile = dvibase + '.dvi'
+	    cmdline = 'jadetex ' + outfile
+	    for run in range(3):
+		try:
+		    os.unlink(destfile)
+		except:
+		    pass
+		self._tracer.system(cmdline)
+		if not os.path.isfile(destfile):
+		    raise IOError, 'JadeTeX run failed'
+
+	    #
+	    #  Write generated DVI file to destination if we're the final
+	    #  backend. If we're nested, leave the file hanging around.
+	    #
+	    self._tracer.chdir(savdir)
+	    if self._globs.getName() == 'dvi':
+		finalfile = os.path.join (self._fileparts[1],
+				self._fileparts[0] + '.dvi')
+                self._tracer.mv(destfile, finalfile)
+
+            #
+            #  Make sure that the temporary files are unlinked, later on.
+            #
+            registerTemp(os.path.join(tmpdir, dvibase + '.log'))
+            registerTemp(os.path.join(tmpdir, dvibase + '.aux'))
+
+
+
+class DviGlobals(BackendGlobals):
+
+    def getName(self):
+	return 'dvi'
+
+    def getJadeSettings(self):
+	return ('sgmltools-dvi', 'tex')
diff --git a/gnu/dist/sgmltools-lite/python/backends/Html.py b/gnu/dist/sgmltools-lite/python/backends/Html.py
new file mode 100644
index 00000000..bf57ab17
--- /dev/null
+++ b/gnu/dist/sgmltools-lite/python/backends/Html.py
@@ -0,0 +1,88 @@
+#
+#  backends/Html.py
+#
+#  $Id: Html.py,v 1.5 2000/10/26 06:20:23 cdegroot Exp $
+#
+#  SGMLtools HTML backend driver.
+#
+#  SGMLtools - an SGML toolkit.
+#  Copyright (C) 1998 Cees A. de Groot
+#
+#  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+from Backend import Backend, BackendGlobals
+import utils, os, string, stat
+
+class Html(Backend):
+    
+    def preJade(self, fh):
+	#
+	#  Make a temporary directory, and change in there. Correct the
+	#  filename if it wasn't absolute by prepending the old working
+	#  directory.
+	#
+	self._savdir = os.getcwd();
+	self._tempdir, junk = os.path.splitext(utils.makeTemp())
+	self._tracer.mkdir(self._tempdir, 0700)
+	self._tracer.chdir(self._tempdir)
+
+	return fh
+
+    def postJade(self, outfile, stdoutfile):
+	#
+	#  If we land here, everything worked out fine. Below the
+	#  original working directory, create a subdirectory, and copy
+	#  the results from the temporary directory over there.
+	#
+	#  We clean the destination directory first so that old parts
+	#  don't hang around, and we make a symlink named "index.html"
+	#  pointing to the logical starting point of the resulting html
+	#  set.
+	#
+	self._tracer.chdir(self._savdir)	# so relative names work ok.
+	(srcdir, junk) = os.path.split(outfile)
+	destdir = os.path.join(self._fileparts[1], self._fileparts[0])
+
+        if os.path.exists(destdir):
+            self._tracer.system('rm -rf ' + destdir + '/*')
+        else:
+            self._tracer.mkdir(destdir)
+
+        self._tracer.mv(self._tempdir + '/*', destdir)
+	self._tracer.rmdir(self._tempdir)
+
+	#
+	#  The first file in the manifest is what we'll see as index.html
+	#
+	self._tracer.chdir(destdir)
+	try:
+	    fh = open('HTML.manifest', 'r')
+	    indexfile = string.strip(fh.readline())
+	    fh.close()
+	    self._tracer.symlink(indexfile, 'index.html')
+	except:
+	    pass
+
+
+	self._tracer.chdir(self._savdir)
+
+
+class HtmlGlobals(BackendGlobals):
+
+    def getName(self):
+	return 'html'
+
+    def getJadeSettings(self):
+	return ('sgmltools-html', 'sgml')
diff --git a/gnu/dist/sgmltools-lite/python/backends/JadeTeX.py b/gnu/dist/sgmltools-lite/python/backends/JadeTeX.py
new file mode 100644
index 00000000..87c50555
--- /dev/null
+++ b/gnu/dist/sgmltools-lite/python/backends/JadeTeX.py
@@ -0,0 +1,46 @@
+#
+#  backends/JadeTeX.py
+#
+#  $Id: JadeTeX.py,v 1.3 2000/08/03 12:38:57 cdegroot Exp $
+#
+#  SGMLtools JadeTeX backend driver.
+#
+#  SGMLtools - an SGML toolkit.
+#  Copyright (C) 1998 Cees A. de Groot
+#
+#  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+from Backend import Backend, BackendGlobals
+from utils import registerTemp
+import os
+
+class JadeTeX(Backend):
+
+	def postJade(self, outfile, stdoutfile):
+
+	    savdir = os.getcwd()
+	    (tmpdir, junk) = os.path.split(outfile)
+	    self._tracer.chdir(savdir)
+            finalfile = os.path.join(self._fileparts[1],
+                self._fileparts[0] + '.tex')
+            self._tracer.mv(outfile, finalfile)
+
+class JadeTeXGlobals(BackendGlobals):
+
+    def getName(self):
+	return 'jadetex'
+
+    def getJadeSettings(self):
+	return ('sgmltools-tex', 'tex')
diff --git a/gnu/dist/sgmltools-lite/python/backends/Ld2db.py b/gnu/dist/sgmltools-lite/python/backends/Ld2db.py
new file mode 100644
index 00000000..7787fc87
--- /dev/null
+++ b/gnu/dist/sgmltools-lite/python/backends/Ld2db.py
@@ -0,0 +1,71 @@
+#
+#  backends/Ld2db.py
+#
+#  $Id: Ld2db.py,v 1.2 2000/08/03 12:38:57 cdegroot Exp $
+#
+#  SGMLtools LinuxDoc conversion backend driver.
+#
+#  SGMLtools - an SGML toolkit.
+#  Copyright (C) 1998 Cees A. de Groot
+#
+#  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+from Backend import Backend, BackendGlobals
+import os, string
+
+class Ld2db(Backend):
+
+    def preJade(self, fh):
+	#
+	#  We need to patch up the SGML_CATALOG_FILES so that
+	#  just the elements we need are in there. Otherwise, we
+	#  have trouble with finding the wrong SGML declaration.
+	#
+	pathelems = string.split(os.environ["SGML_CATALOG_FILES"], ':')
+	newcatfiles = []
+	for i in pathelems:
+	    if string.find(i, 'dtd/sgmltools') != -1:
+		newcatfiles.append(i)
+	    elif string.find(i, 'stylesheets/sgmltools') != -1:
+		newcatfiles.append(i)
+	    elif string.find(i, 'dtd/jade') != -1:
+		newcatfiles.append(i)
+	    elif string.find(i, 'entities/iso-entities-8879.1986') != -1:
+		newcatfiles.append(i)
+
+	os.environ["SGML_CATALOG_FILES"] = string.join(newcatfiles, ':')
+	self._tracer.trace('SGML_CATALOG_FILES=' + 
+			   os.environ["SGML_CATALOG_FILES"])
+
+	return fh
+
+    def postJade(self, outfile, stdoutfile):
+	#
+	#  Write generated DVI file to destination if we're the final
+	#  backend. Note that Jade spits stuff to stdoutfile in this
+	#  case.
+	#
+	destfile = os.path.join(self._fileparts[1], 
+			self._fileparts[0] + '.db-sgml')
+        self._tracer.mv(stdoutfile, destfile)
+
+
+class Ld2dbGlobals(BackendGlobals):
+
+    def getName(self):
+	return 'ld2db'
+
+    def getJadeSettings(self):
+	return ('sgmltools-db', 'sgml')
diff --git a/gnu/dist/sgmltools-lite/python/backends/Lynx.py b/gnu/dist/sgmltools-lite/python/backends/Lynx.py
new file mode 100644
index 00000000..3436af78
--- /dev/null
+++ b/gnu/dist/sgmltools-lite/python/backends/Lynx.py
@@ -0,0 +1,59 @@
+#
+#  backends/Lynx.py
+#
+#  $Id: Lynx.py,v 1.2 2000/10/25 06:00:05 cdegroot Exp $
+#
+#  SGMLtools Lynx-based text backend driver.
+#
+#  SGMLtools - an SGML toolkit.
+#  Copyright (C) 1998 Cees A. de Groot
+#
+#  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+from Backend import Backend, BackendGlobals
+import os
+
+class Lynx(Backend):
+
+    def preJade(self, fh):
+	#
+	#  Check whether Lynx is there, if not: die
+	#
+	if self._autoconf['progs']['lynx'] == 'N/A':
+	    raise Exception, 'Lynx not configured, cannot produce output'
+	else:
+	    return fh
+
+    def postJade(self, outfile, stdoutfile):
+	#
+	#  Jade wrote HTML, run it through lynx.
+	#
+	destfile = os.path.join(self._fileparts[1], self._fileparts[0] + '.txt')
+	self._tracer.system ("lynx -dump -nolist -force_html %s >%s" \
+		    % (stdoutfile, destfile))
+
+
+class LynxGlobals(BackendGlobals):
+
+    def getName(self):
+	#
+	#  Now that there is more than one txt backend, we pose as 'lynx', not
+	#  as 'txt'
+	#
+	return 'lynx'
+
+    def getJadeSettings(self):
+	return ('sgmltools-lynx', 'sgml')
+
diff --git a/gnu/dist/sgmltools-lite/python/backends/OneHtml.py b/gnu/dist/sgmltools-lite/python/backends/OneHtml.py
new file mode 100644
index 00000000..c3a30d0c
--- /dev/null
+++ b/gnu/dist/sgmltools-lite/python/backends/OneHtml.py
@@ -0,0 +1,46 @@
+#
+#  backends/OneHtml.py
+#
+#  $Id: OneHtml.py,v 1.2 2000/08/03 12:38:57 cdegroot Exp $
+#
+#  SGMLtools DVI backend driver.
+#
+#  SGMLtools - an SGML toolkit.
+#  Copyright (C) 1998 Cees A. de Groot
+#
+#  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+from Backend import Backend, BackendGlobals
+from utils import registerTemp
+import os, string
+
+class OneHtml(Backend):
+
+	def postJade(self, outfile, stdoutfile):
+
+	    #
+	    #  Write generated HTML file to destination.
+	    #
+	    destfile = os.path.join(self._fileparts[1], 
+				    self._fileparts[0] + '.html')
+            self._tracer.mv(stdoutfile, destfile)
+
+class OneHtmlGlobals(BackendGlobals):
+
+    def getName(self):
+	return 'onehtml'
+
+    def getJadeSettings(self):
+	return ('sgmltools-onehtml', 'sgml')
diff --git a/gnu/dist/sgmltools-lite/python/backends/Pdf.py b/gnu/dist/sgmltools-lite/python/backends/Pdf.py
new file mode 100644
index 00000000..256c607c
--- /dev/null
+++ b/gnu/dist/sgmltools-lite/python/backends/Pdf.py
@@ -0,0 +1,87 @@
+#
+#  backends/Pdf.py
+#
+#  $Id: Pdf.py,v 1.2 2000/08/03 12:38:57 cdegroot Exp $
+#
+#  SGMLtools DVI backend driver.
+#
+#  SGMLtools - an SGML toolkit.
+#  Copyright (C) 1998 Cees A. de Groot
+#
+#  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+from Backend import Backend, BackendGlobals
+from utils import registerTemp
+import os
+
+class Pdf(Backend):
+
+	def postJade(self, outfile, stdoutfile):
+
+	    #
+	    #  Looks like that from 1.1.8, jadetex writes output in cwd 
+	    #  instead of TMPDIR. No matter what jadetex chooses to do, 
+	    #  this will make sure it lands in TMPDIR. We set TEXINPUTS 
+	    #  so that included graphics are found.
+	    #
+	    savdir = os.getcwd()
+	    envname = 'TEXINPUTS'
+	    if os.environ.has_key(envname):
+		os.environ[envname] = '.:%s:%s' % (savdir, os.environ[envname])
+	    else:
+		os.environ[envname] = '.:%s:' % (savdir)
+	    (tmpdir, junk) = os.path.split(outfile)
+	    self._tracer.chdir(tmpdir)
+
+	    #
+	    #  Run JadeTeX on the generated file, thrice. 
+	    #
+	    (pdfbase, junk) = os.path.splitext(outfile)
+	    destfile = pdfbase + '.pdf'
+	    cmdline = 'pdfjadetex ' + outfile
+	    for run in range(3):
+		try:
+		    os.unlink(destfile)
+		except:
+		    pass
+		self._tracer.system(cmdline)
+		if not os.path.isfile(destfile):
+		    raise IOError, 'JadeTeX run failed'
+
+	    #
+	    #  Write generated PDF file to destination if we're the final
+	    #  backend. If we're nested, leave the file hanging around.
+	    #
+	    self._tracer.chdir(savdir)
+	    if self._globs.getName() == 'pdf':
+		finalfile = os.path.join (self._fileparts[1],
+				self._fileparts[0] + '.pdf')
+                self._tracer.mv(destfile, finalfile)
+
+            #
+            #  Make sure that the temporary files are unlinked, later on.
+            #
+            registerTemp(os.path.join(tmpdir, pdfbase + '.log'))
+            registerTemp(os.path.join(tmpdir, pdfbase + '.aux'))
+
+
+
+class PdfGlobals(BackendGlobals):
+
+    def getName(self):
+	return 'pdf'
+
+    def getJadeSettings(self):
+	return ('sgmltools-pdf', 'tex')
diff --git a/gnu/dist/sgmltools-lite/python/backends/Ps.py b/gnu/dist/sgmltools-lite/python/backends/Ps.py
new file mode 100644
index 00000000..b63aee15
--- /dev/null
+++ b/gnu/dist/sgmltools-lite/python/backends/Ps.py
@@ -0,0 +1,58 @@
+#
+#  backends/Ps.py
+#
+#  $Id: Ps.py,v 1.1 2000/03/24 09:16:45 cdegroot Exp $
+#
+#  SGMLtools PostScript backend driver.
+#
+#  SGMLtools - an SGML toolkit.
+#  Copyright (C) 1998 Cees A. de Groot
+#
+#  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+from Backend import Backend, BackendGlobals
+import os
+from Dvi import Dvi
+
+class Ps(Dvi):
+
+    def postJade(self, outfile, stdoutfile):
+	#
+	#  Call the DVI postJade routine, this leaves a DVI file we
+	#  can postprocess.
+	#
+	Dvi.postJade(self, outfile, stdoutfile)
+
+	(tmpdir, junk) = os.path.split(outfile)
+	(dvibase, junk) = os.path.splitext(outfile)
+	dvifile = os.path.join(tmpdir, dvibase + '.dvi')
+
+	destfile = os.path.join(self._fileparts[1], 
+			self._fileparts[0] + '.ps')
+
+	#
+	#  Call dvips on the DVI file.
+	#
+	cmdline = 'dvips -o %s %s' % (destfile, dvifile)
+	self._tracer.system(cmdline)
+
+
+class PsGlobals(BackendGlobals):
+
+    def getName(self):
+	return 'ps'
+
+    def getJadeSettings(self):
+	return ('sgmltools-ps', 'tex')
diff --git a/gnu/dist/sgmltools-lite/python/backends/Rtf.py b/gnu/dist/sgmltools-lite/python/backends/Rtf.py
new file mode 100644
index 00000000..ca8042e5
--- /dev/null
+++ b/gnu/dist/sgmltools-lite/python/backends/Rtf.py
@@ -0,0 +1,45 @@
+#
+#  backends/Rtf.py
+#
+#  $Id: Rtf.py,v 1.2 2000/08/03 12:38:57 cdegroot Exp $
+#
+#  SGMLtools RTF backend driver.
+#
+#  SGMLtools - an SGML toolkit.
+#  Copyright (C) 1998 Cees A. de Groot
+#
+#  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+from Backend import Backend, BackendGlobals
+import os
+
+class Rtf(Backend):
+
+    def postJade(self, outfile, stdoutfile):
+	#
+	#  Jade wrote RTF, send it to its final destination
+	#
+	destfile = os.path.join(self._fileparts[1], self._fileparts[0] + '.rtf')
+        self._tracer.mv(outfile, destfile)
+
+
+class RtfGlobals(BackendGlobals):
+
+    def getName(self):
+	return 'rtf'
+
+    def getJadeSettings(self):
+	return ('sgmltools-rtf', 'rtf')
+
diff --git a/gnu/dist/sgmltools-lite/python/backends/W3m.py b/gnu/dist/sgmltools-lite/python/backends/W3m.py
new file mode 100644
index 00000000..f327ae72
--- /dev/null
+++ b/gnu/dist/sgmltools-lite/python/backends/W3m.py
@@ -0,0 +1,71 @@
+#
+#  backends/W3m.py
+#
+#  $Id: W3m.py,v 1.2 2000/11/27 20:11:57 dnedrow Exp $
+#
+#  SGMLtools W3m-based text backend driver.
+#
+#  SGMLtools - an SGML toolkit.
+#  Copyright (C) 1998 Cees A. de Groot
+#
+#  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+from Backend import Backend, BackendGlobals
+import os
+
+class W3m(Backend):
+
+    def preJade(self, fh):
+	#
+	#  Check whether W3m is there, if not: die
+	#
+	if self._autoconf['progs']['w3m'] == 'N/A':
+	    raise Exception, 'w3m not configured, cannot produce output'
+	else:
+	    return fh
+
+    def postJade(self, outfile, stdoutfile):
+	#
+	#  Jade wrote HTML, run it through w3m.
+	#
+	destfile = os.path.join(self._fileparts[1], self._fileparts[0] + '.txt')
+	self._tracer.system ("w3m -T text/html -dump %s >%s" \
+		    % (stdoutfile, destfile))
+
+
+class W3mGlobals(BackendGlobals):
+
+    def getName(self):
+	#
+	#  As long as we're the only txt backend, we pose as 'txt', not
+	#  as 'w3m'
+	#
+	return 'w3m'
+
+    def getJadeSettings(self):
+	return ('sgmltools-w3m', 'sgml')
+
+    def printHelp(self, fh):
+        """Not much help for w3m."""
+        print '\n\n'
+        print 'w3m (http://ei5nazha.yz.yamagata-u.ac.jp/~aito/w3m/eng) is a'
+        print 'text-based pager that can be used to browse websites from a'
+        print 'console. It can also be used to generate text versions of'
+        print 'websites, generally with better output than the Lynx dump'
+        print 'facility. If w3m is found when sgmltools-lite is installed'
+        print 'it becomes the default parser for the txt backend.'
+
+        pass
+
diff --git a/gnu/dist/sgmltools-lite/python/backends/iSilo.py b/gnu/dist/sgmltools-lite/python/backends/iSilo.py
new file mode 100644
index 00000000..c3efa8b6
--- /dev/null
+++ b/gnu/dist/sgmltools-lite/python/backends/iSilo.py
@@ -0,0 +1,79 @@
+#
+#  backends/iSilo.py
+#
+#  $Id: iSilo.py,v 1.2 2000/11/27 20:11:57 dnedrow Exp $
+#
+#  SGMLtools iSilo-based text backend driver.
+#
+#  SGMLtools - an SGML toolkit.
+#  Copyright (C) 1998 Cees A. de Groot
+#
+#  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+from Backend import Backend, BackendGlobals
+import os
+
+class iSilo(Backend):
+
+    def preJade(self, fh):
+	#
+	#  Check whether iSilo is there, if not: die
+	#
+	if self._autoconf['progs']['iSilo'] == 'N/A':
+	    raise Exception, 'iSilo not configured, cannot produce output'
+	else:
+	    return fh
+
+    def postJade(self, outfile, stdoutfile):
+	#
+	#  Jade wrote HTML, run it through iSilo.
+	#
+	destfile = os.path.join(self._fileparts[1], self._fileparts[0] + '.pdb')
+	self._tracer.system ("%s -y -I %s %s" \
+		    % (self._autoconf['progs']['iSilo'],
+                       stdoutfile, destfile))
+
+
+class iSiloGlobals(BackendGlobals):
+
+    def getName(self):
+	#
+	#  As long as we're the only txt backend, we pose as 'pdb', not
+	#  as 'iSilo'
+	#
+	return 'pdb'
+
+    def getJadeSettings(self):
+	return ('sgmltools-pdb', 'sgml')
+
+    def printHelp(self, fh):
+        """Not much help for iSilo."""
+        print '\n\n'
+        print 'iSilo (http://www.isilo.com) is an application that converts'
+        print 'HTML and ASCII to documents which can be viewed on Palm'
+        print 'compatible devices using the free iSilo reader.'
+        print ''
+        print 'While iSilo can parse HTML directly, the sgmltools'
+        print 'implementation uses a text backend to generate the input'
+        print 'to the iSilo encoder.'
+        print ''
+        print 'A future improvement to this backend will be input options'
+        print 'that will allow the user to specify pre-processing formats.'
+        print ''
+        print 'Free linux encoders and Palm readers are available from the'
+        print 'URL above.'
+
+        pass
+