1#!/usr/bin/env python
2# Copyright (C) 2012 Google Inc. All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met:
7#
8#     * Redistributions of source code must retain the above copyright
9# notice, this list of conditions and the following disclaimer.
10#     * Redistributions in binary form must reproduce the above
11# copyright notice, this list of conditions and the following disclaimer
12# in the documentation and/or other materials provided with the
13# distribution.
14#     * Neither the name of Google Inc. nor the names of its
15# contributors may be used to endorse or promote products derived from
16# this software without specific prior written permission.
17#
18# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
30# Usage: make-file-arrays.py [--condition=condition-string] --out-h=<header-file-name> --out-cpp=<cpp-file-name> <input-file>...
31
32import os.path
33import re
34import sys
35from optparse import OptionParser
36
37
38def make_variable_name_and_read(file_name):
39    result = re.match(r"([\w\d_]+)\.([\w\d_]+)", os.path.basename(file_name))
40    if not result:
41        print "Invalid input file name:", os.path.basename(file_name)
42        sys.exit(1)
43    variable_name = result.group(1)[0].lower() + result.group(1)[1:] + result.group(2).capitalize()
44    file = open(file_name, "rb")
45    content = file.read()
46    file.close()
47    return (variable_name, content)
48
49
50def strip_whitespace_and_comments(file_name, content):
51    result = re.match(r".*\.([^.]+)", file_name)
52    if not result:
53        print "The file name has no extension:", file_name
54        sys.exit(1)
55    extension = result.group(1).lower()
56    multi_line_comment = re.compile(r"/\*.*?\*/", re.MULTILINE | re.DOTALL)
57    single_line_comment = re.compile(r"//.*$", re.MULTILINE)
58    repeating_space = re.compile(r"[ \t]+", re.MULTILINE)
59    leading_space = re.compile(r"^[ \t]+", re.MULTILINE)
60    trailing_space = re.compile(r"[ \t]+$", re.MULTILINE)
61    empty_line = re.compile(r"\n+")
62    if extension == "js":
63        content = multi_line_comment.sub("", content)
64        content = single_line_comment.sub("", content)
65        content = repeating_space.sub(" ", content)
66        content = leading_space.sub("", content)
67        content = trailing_space.sub("", content)
68        content = empty_line.sub("\n", content)
69    elif extension == "css":
70        content = multi_line_comment.sub("", content)
71        content = repeating_space.sub(" ", content)
72        content = leading_space.sub("", content)
73        content = trailing_space.sub("", content)
74        content = empty_line.sub("\n", content)
75    return content
76
77
78def main():
79    parser = OptionParser()
80    parser.add_option("--out-h", dest="out_header")
81    parser.add_option("--out-cpp", dest="out_cpp")
82    parser.add_option("--condition", dest="flag")
83    (options, args) = parser.parse_args()
84    if len(args) < 1:
85        parser.error("Need one or more input files")
86    if not options.out_header:
87        parser.error("Need to specify --out-h=filename")
88    if not options.out_cpp:
89        parser.error("Need to specify --out-cpp=filename")
90
91    if options.flag:
92        options.flag = options.flag.replace(" AND ", " && ")
93        options.flag = options.flag.replace(" OR ", " || ")
94
95    header_file = open(options.out_header, "w")
96    if options.flag:
97        header_file.write("#if " + options.flag + "\n")
98    header_file.write("namespace WebCore {\n")
99
100    cpp_file = open(options.out_cpp, "w")
101    cpp_file.write("#include \"config.h\"\n")
102    cpp_file.write("#include \"" + os.path.basename(options.out_header) + "\"\n")
103    if options.flag:
104        cpp_file.write("#if " + options.flag + "\n")
105    cpp_file.write("namespace WebCore {\n")
106
107    for file_name in args:
108        (variable_name, content) = make_variable_name_and_read(file_name)
109        content = strip_whitespace_and_comments(file_name, content)
110        size = len(content)
111        header_file.write("extern const char %s[%d];\n" % (variable_name, size))
112        cpp_file.write("const char %s[%d] = {\n" % (variable_name, size))
113        for index in range(size):
114            char_code = ord(content[index])
115            if char_code < 128:
116                cpp_file.write("%d" % char_code)
117            else:
118                cpp_file.write("'\\x%02x'" % char_code)
119            cpp_file.write("," if index != len(content) - 1 else "};\n")
120            if index % 20 == 19:
121                cpp_file.write("\n")
122        cpp_file.write("\n")
123
124    header_file.write("}\n")
125    if options.flag:
126        header_file.write("#endif\n")
127    header_file.close()
128
129    cpp_file.write("}\n")
130    if options.flag:
131        cpp_file.write("#endif\n")
132    cpp_file.close()
133
134
135if __name__ == "__main__":
136    main()
137