java binding: automatic conversion tool for JNA

Signed-off-by: Filippo Carone <littlejohn@videolan.org>

diff --git a/bindings/java/extras/convert.py b/bindings/java/extras/convert.py
new file mode 100755 (executable)
index 0000000..6b753cb
--- /dev/null
+++ b/bindings/java/extras/convert.py
@@ -0,0 +1,87 @@
+#!/usr/bin/python
+"""
+vlc to jna almost-automatized interface converter.
+
+This program is free software. It comes without any warranty, to
+the extent permitted by applicable law. You can redistribute it
+and/or modify it under the terms of the Do What The Fuck You Want
+To Public License, Version 2, as published by Sam Hocevar. See
+http://sam.zoy.org/wtfpl/COPYING for more details. 
+
+"""
+
+import sys
+
+file = open('libvlc.h', 'r')
+
+parameter_parsing = False
+prototype_parsing = False
+
+types_map = [
+       ["const ", ""],
+       ["VLC_PUBLIC_API ", ""],
+       ["char**", "String[] "],
+       ["char **" , "String[] "],
+       ["char*" , "String "],
+       ["char *" , "String "],
+       ["libvlc_instance_t *", "LibVlcInstance "],
+       ["libvlc_exception_t *", "libvlc_exception_t "],
+       ["libvlc_log_t *", "LibVlcLog "],
+       ["libvlc_log_iterator_t *", "LibVlcLogIterator "],
+       ["libvlc_log_message_t *", "libvlc_log_message_t "],
+       ["unsigned", "int"],
+]
+
+def convert_prototype(proto, parameters):
+       #print proto
+       #print parameters
+       tokens = proto.split(",")
+       last = tokens.pop().split(")")
+       res = ''
+       for i in tokens:
+               param = parameters.pop(0)
+               if i.find(param)==-1:
+                       res += i + " " + param + ","
+               else:
+                       res += i + " ,"
+       if len(parameters):
+               param = parameters.pop(0)
+               if last[0].find(param)==-1:
+                       res += last[0] + " " + param + ")" + last[1]
+               else:
+                       res += last[0] + ")" + last[1]
+
+       for k,v in types_map:
+               res = res.replace(k,v)
+       print res
+
+for line in file.readlines():
+       if line.find("/**")!=-1:
+               parameters = []
+               parameter_parsing = True
+
+       if line.find("VLC_PUBLIC_API")!=-1:
+               if not parameters:
+                       continue
+               prototype_line = ''
+               prototype_parsing = True
+
+       if parameter_parsing:
+               param_index = line.find("\param ")
+               if not param_index==-1:
+                       parameter = line.split()[2]
+                       parameters.append(parameter)
+               if line.find("*/")!=-1:
+                       parameter_parsing = False
+
+       if prototype_parsing:
+               prototype_line += line.strip()
+               if line.find(");")!=-1:
+                       prototype_parsing = False
+                       convert_prototype(prototype_line, parameters)
+                       parameters = None
+               continue
+
+       #sys.stdout.write(line)
+
+# vi:ts=4