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#!/usr/bin/env python
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# Copyright JS Foundation and other contributors, http://js.foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# This file converts ./js/*.js to a C-array in ./source/jerry-targetjs.h file
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import argparse
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import glob
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import os
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import re
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import sys
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special_chars = re.compile(r'[-\\?\'".]')
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def extractName(path):
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return special_chars.sub('_', os.path.splitext(os.path.basename(path))[0])
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def writeLine(fo, content, indent=0):
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buf = ' ' * indent + content + '\n'
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fo.write(buf)
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def regroup(l, n):
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return [ l[i:i+n] for i in range(0, len(l), n) ]
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def removeComments(code):
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pattern = r'(\".*?\"|\'.*?\')|(/\*.*?\*/|//[^\r\n]*$)'
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regex = re.compile(pattern, re.MULTILINE | re.DOTALL)
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def _replacer(match):
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if match.group(2) is not None:
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return ""
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else:
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return match.group(1)
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return regex.sub(_replacer, code)
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def removeWhitespaces(code):
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return re.sub('\n+', '\n', re.sub('\n +', '\n', code))
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LICENSE = '''/* Copyright JS Foundation and other contributors, http://js.foundation
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*
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* Licensed under the Apache License, Version 2.0 (the \"License\");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an \"AS IS\" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is generated by js2c.py. Please do not modify.
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*/
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'''
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HEADER = '''#ifndef JERRY_TARGETJS_H
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#define JERRY_TARGETJS_H
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'''
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FOOTER = '''
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#endif
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'''
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parser = argparse.ArgumentParser(description="js2c")
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parser.add_argument('--build-type', help='build type', default='release', choices=['release', 'debug'])
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parser.add_argument('--ignore', help='files to ignore', dest='ignore_files', default=[], action='append')
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parser.add_argument('--no-main', help="don't require a 'main.js' file", dest='main', action='store_false', default=True)
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parser.add_argument('--js-source', dest='js_source_path', default='./js', help='Source directory of JavaScript files" (default: %(default)s)')
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parser.add_argument('--dest', dest='output_path', default='./source', help="Destination directory of 'jerry-targetjs.h' (default: %(default)s)")
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args = parser.parse_args()
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# argument processing
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build_type = args.build_type
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ignore_files = args.ignore_files
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fout = open(os.path.join(args.output_path, 'jerry-targetjs.h'), 'w')
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fout.write(LICENSE);
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fout.write(HEADER);
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def exportOneFile(path, name):
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fout.write('const static char ' + name + '_n[] = "' + name + '";\n')
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fout.write('const static char ' + name + '_s[] =\n{\n')
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fin = open(path, 'r');
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code = fin.read() + '\0'
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# minimize code when release mode
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if build_type != 'debug':
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code = removeComments(code)
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code = removeWhitespaces(code)
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for line in regroup(code, 10):
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buf = ', '.join(map(lambda ch: format(ord(ch),"#04x"), line))
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if line[-1] != '\0':
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buf += ','
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writeLine(fout, buf, 1)
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writeLine(fout, '};')
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writeLine(fout, 'const static int ' + name + '_l = ' + str(len(code)-1) + ';')
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writeLine(fout, '')
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fin.close();
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def exportOneName(name):
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writeLine(fout, '{ ' + name + '_n, ' + name + '_s, ' + name + '_l }, \\', 1)
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files = glob.glob(os.path.join(args.js_source_path, '*.js'))
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for path in files:
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name = extractName(path)
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if os.path.basename(path) not in ignore_files:
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exportOneFile(path, name)
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NATIVE_STRUCT = '''
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struct js_source_all {
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const char* name;
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const char* source;
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const int length;
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};
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#define DECLARE_JS_CODES \\
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struct js_source_all js_codes[] = \\
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{ \\
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'''
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fout.write(NATIVE_STRUCT)
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if args.main:
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exportOneName('main')
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for filename in files:
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name = extractName(filename)
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if name != 'main' and os.path.basename(filename) not in ignore_files:
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exportOneName(name)
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writeLine(fout, '{ NULL, NULL, 0 } \\', 1)
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writeLine(fout, '};')
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fout.write(FOOTER)
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fout.close()
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Robert Sipka