add docbook version of plugin documentation

diff --git a/doc/docbook/Makefile b/doc/docbook/Makefile
new file mode 100644 (file)
index 0000000..74448c2
--- /dev/null
+++ b/doc/docbook/Makefile
@@ -0,0 +1,18 @@
+SRCS = \
+       src/book.xml \
+       src/bookinfo.xml \
+       src/graphviz_plugins.xml \
+       src/graphviz_scripting.xml
+
+all: html pdf
+
+dvi fo javahelp man pdf ps txt xhtml xhtml-nochunks: $(SRCS)
+       xmlto $@ src/book.xml
+
+
+html html-nochunks htmlhelp: $(SRCS)
+       xmlto $@ -o $@ src/book.xml
+       cp -rp src/imgs $@/
+
+clean:
+       rm -rf html* book.*