1 files changed, 45 insertions, 0 deletions
diff --git a/DocBook/SCons/FO.py b/DocBook/SCons/FO.py
new file mode 100644
index 0000000..c7596d6
--- /dev/null
+++ b/DocBook/SCons/FO.py
@@ -0,0 +1,45 @@
+import SCons.Util
+import xml.dom.minidom, re
+
+################################################################################
+# XSL-FO builder
+################################################################################
+
+def generate(env) :
+  def generate_actions(source, target, env, for_signature) :
+    if len(env["FOCFG"]) > 0 :
+      cmd = "$FO -c $FOCFG $FOFLAGS $SOURCE $TARGET"
+    else :
+      cmd = "$FO $FOFLAGS $SOURCE $TARGET"
+    return SCons.Action.Action(cmd, cmdstr = "$FOCOMSTR")
+
+  def modify_sources(target, source, env) :
+    if len(env["FOCFG"]) > 0 :
+      source.append(env["FOCFG"])
+    return target, source
+
+  def scan_fo(node, env, path) :
+    dependencies = set()
+    try :
+      document = xml.dom.minidom.parseString(node.get_contents())
+    except xml.parsers.expat.ExpatError:
+      return []
+    for include in document.getElementsByTagNameNS("http://www.w3.org/1999/XSL/Format", "external-graphic") :
+      m = re.match("url\((.*)\)", include.getAttribute("src"))
+      if m :
+        dependencies.add(m.group(1))
+    return list(dependencies)
+
+  env["FO"] = "fop"
+  env["FOFLAGS"] = ""
+  env["FOCFG"] = ""
+  env["BUILDERS"]["FO"] = SCons.Builder.Builder(
+        generator = generate_actions,
+        emitter = modify_sources,
+        source_scanner = SCons.Scanner.Scanner(function = scan_fo, skeys = [".fo"]),
+        suffix = ".pdf",
+        src_suffix = ".fo"
+      )
+
+def exists(env) :
+  return True