--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/make_headers.py	Tue Jul 28 22:32:09 2015 +0900
@@ -0,0 +1,124 @@
+#!/usr/bin/env python3.0
+
+
+import sys
+import re
+import getopt
+
+reserved_words = [ "if", "for", "switch", "return", "while", "else", ]
+
+PATTERN =  "([a-zA-Z_][\w\s]*\**)\s([a-zA-Z_]\w*)\s*\(([^{/;]*)\)\s*\{"
+# TODO: 関数パラメータ内にコメントがあると正しく動かない!
+# TODO: int * const * とか大丈夫?
+PROG = re.compile(PATTERN, re.S)
+
+omit_static=False
+add_extern=""
+
+def truncate_comments(data):
+	pass
+
+def check_reserved_word(decl):
+	""" return true if decl's type and name is not reserved word. """
+
+	if decl["name"] in reserved_words or decl["type"] in reserved_words:
+		return False
+	return True
+
+def read_decls(file):
+	declarators = []
+
+	# open the file and read all lines into a string.
+	try:
+		fo = open(file, 'r')
+		lines = fo.readlines()
+		data = "".join(lines)
+		truncate_comments(data)
+	except IOError:
+		print("cannot read file %s" % file)
+		return None
+
+	# find all matched strings.
+	# moiter is iterator of MatchObject.
+	moiter = PROG.finditer(data)
+	for mo in moiter:
+		tmp = { "type": mo.group(1),
+				"name": mo.group(2),
+				"parms": mo.group(3),
+				"offset": mo.start() }
+		if check_reserved_word(tmp):
+			declarators.append(tmp)
+
+	return declarators
+
+def debug_print(decl):
+	for (key,value) in list(decl.items()):
+		if isinstance(value, str):
+			decl[key] = value.replace("\n"," ").replace("\t"," ")
+
+	print("Type:\t{0:s}".format(decl["type"]))
+	print("Name:\t{0:s}".format(decl["name"]))
+	print("Params:\t{0:s}".format(decl["parms"]))
+	print("offset:\t{0:d}".format(decl["offset"]))
+	print("")
+
+def format_print(decl, file):
+	for (key,value) in list(decl.items()):
+		if isinstance(value, str):
+			decl[key] = value.replace("\n"," ").replace("\t"," ")
+
+	print("/* defined in file {0:s} at offset {1:d} */".format(file,decl["offset"]))
+	print("{3:s}{0:s} {1:s} ({2:s});".format(decl["type"],decl["name"],decl["parms"], add_extern))
+	print("")
+
+def getoptions():
+	global omit_static, add_extern
+
+	try:
+		opts, args = getopt.getopt(sys.argv[1:], 'se', [ 'omit-static', 'add-extern' ])
+	except getopt.GetoptError as err:
+		print(err)
+		usage()
+		sys.exit(2)
+
+	for opt,a in opts:
+		if opt in ("-s", "--omit-static"):
+			omit_static=True
+		elif opt in ("-e", "--add-extern"):
+			add_extern="extern "
+		else:
+			print("unhandled option {0}".format(opt))
+			usage()
+	
+	return args
+
+def usage():
+	print( """\
+Usage: {0:s} OPION... [FILE]...
+OPTIONS:
+	-s, --omit-static	omit static functions
+	-e, --add-extern	add extern to all function declarations
+	""".format(sys.argv[0]))
+
+def main():
+
+	# option handling.
+	args = getoptions()
+
+	for file in args:
+		# read function declaration from each file.
+		decls = read_decls(file)
+		if decls==None or len(decls)==0:
+			# no function found.
+			print("{0} have no function definition!".format(file))
+			continue
+
+		for decl in decls:
+			if omit_static and 0 <= decl["type"].find("static"):
+				# static function is ignored.
+				continue
+			#debug_print(decl)
+			format_print(decl, file)
+
+main()
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/make_headers.py2	Tue Jul 28 22:32:09 2015 +0900
@@ -0,0 +1,126 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import sys
+import re
+import getopt
+
+reserved_words = [ "if", "for", "switch", "return", "while", "else", ]
+
+PATTERN = r"([a-zA-Z_][\w\s]*\**)\s([a-zA-Z_]\w*)\s*\(([^\{/;]*)\)\s*\{"
+#PATTERN = r"([a-zA-Z_]\w*)\s+([a-zA-Z_]\w*)\s*\(([^;]*)\)\s*\{"
+#PATTERN = r"((?:[a-zA-Z_]\w*)\s+)+?([a-zA-Z_]\w*)\s*\(([^;]*)\)\s*\{"
+# TODO: 関数パラメータ内にコメントがあると正しく動かない!
+PROG = re.compile(PATTERN, re.S)
+
+omit_static=False
+add_extern=""
+
+def truncate_comments(data):
+	pass
+
+def check_reserved_word(decl):
+	""" return true if decl's type and name is not reserved word. """
+
+	if decl["name"] in reserved_words or decl["type"] in reserved_words:
+		return False
+	return True
+
+def read_decls(file):
+	declarators = []
+
+	# open the file and read all lines into a string.
+	try:
+		fo = open(file, 'r')
+		lines = fo.readlines()
+		data = "".join(lines)
+		truncate_comments(data)
+	except IOError:
+		print "cannot read file %s" % file
+		return None
+
+	# find all matched strings.
+	# moiter is iterator of MatchObject.
+	moiter = PROG.finditer(data)
+	for mo in moiter:
+		tmp = { "type": mo.group(1),
+				"name": mo.group(2),
+				"parms": mo.group(3),
+				"offset": mo.start() }
+		if check_reserved_word(tmp):
+			declarators.append(tmp)
+
+	return declarators
+
+def debug_print(decl):
+	for (key,value) in decl.items():
+		if isinstance(value, str):
+			decl[key] = value.replace("\n"," ").replace("\t"," ")
+
+	print "Type:\t%s" % decl["type"]
+	print "Name:\t%s" % decl["name"]
+	print "Params:\t%s" % decl["parms"]
+	print "offset:\t%d" % decl["offset"]
+	print ""
+	#s = "%s %s ( %s );" % (decl["type"], decl["name"], decl["parms"])
+	#print s, "/* offset: %d */" % decl["offset"]
+
+def format_print(decl, file):
+	for (key,value) in decl.items():
+		if isinstance(value, str):
+			decl[key] = value.replace("\n"," ").replace("\t"," ")
+
+	print "/* defined in file %s at offset %d  */" % (file,decl["offset"])
+	print "%s%s %s (%s);" % (add_extern, decl["type"],decl["name"],decl["parms"])
+	print ""
+
+def getoptions():
+	global omit_static, add_extern
+
+	try:
+		opts, args = getopt.getopt(sys.argv[1:], 'se', [ 'omit-static', 'add-extern' ])
+	except getopt.GetoptError:
+		print(err)
+		usage()
+		sys.exit(2)
+
+	for opt,a in opts:
+		if opt in ("-s", "--omit-static"):
+			omit_static=True
+		elif opt in ("-e", "--add-extern"):
+			add_extern="extern "
+		else:
+			print("unhandled option {0}".format(opt))
+			usage()
+	
+	return args
+
+def usage():
+	print( """\
+Usage: {0:s} OPION... [FILE]...
+OPTIONS:
+	-s, --omit-static	omit static functions
+	-e, --add-extern	add extern to all function declarations
+	""".format(sys.argv[0]))
+
+def main():
+	# option handling.
+	args = getoptions()
+
+	for file in args:
+		# read function declaration from each file.
+		decls = read_decls(file)
+		if decls==None or len(decls)==0:
+			# no function found.
+			print "%s have no function definition!" % file
+			continue
+
+		for decl in decls:
+			if omit_static and 0 <= decl["type"].find("static"):
+				# static function is ignored.
+				continue
+			#debug_print(decl)
+			format_print(decl, file)
+
+main()
+