Home | History | Annotate | Download | only in scripts
      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 
     32 import os.path
     33 import re
     34 import sys
     35 from optparse import OptionParser
     36 
     37 
     38 def 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 
     50 def 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 
     78 def 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 
    135 if __name__ == "__main__":
    136     main()
    137