コード例 #1
0
ファイル: __init__.py プロジェクト: 030303/skybot
def parse_file( filename, use_cpp=False,
                cpp_path='cpp', cpp_args=''):
    """ Parse a C file using pycparser.

        filename:
            Name of the file you want to parse.

        use_cpp:
            Set to True if you want to execute the C pre-processor
            on the file prior to parsing it.

        cpp_path:
            If use_cpp is True, this is the path to 'cpp' on your
            system. If no path is provided, it attempts to just
            execute 'cpp', so it must be in your PATH.

        cpp_args:
            If use_cpp is True, set this to the command line
            arguments strings to cpp. Be careful with quotes -
            it's best to pass a raw string (r'') here.
            For example:
            r'-I../utils/fake_libc_include'
            If several arguments are required, pass a list of
            strings.

        When successful, an AST is returned. ParseError can be
        thrown if the file doesn't parse successfully.

        Errors from cpp will be printed out.
    """
    if use_cpp:
        path_list = [cpp_path]
        if isinstance(cpp_args, ListType):
            path_list += cpp_args
        elif cpp_args != '':
            path_list += [cpp_args]
        path_list += [filename]

        # Note the use of universal_newlines to treat all newlines
        # as \n for Python's purpose
        #
        pipe = Popen(   path_list,
                        stdout=PIPE,
                        universal_newlines=True)
        text = pipe.communicate()[0]
    else:
        text = open(filename).read()

    parser = CParser()
    return parser.parse(text, filename)
コード例 #2
0
def parse_file(filename, use_cpp=False, cpp_path='cpp', cpp_args=''):
    """ Parse a C file using pycparser.

        filename:
            Name of the file you want to parse.

        use_cpp:
            Set to True if you want to execute the C pre-processor
            on the file prior to parsing it.

        cpp_path:
            If use_cpp is True, this is the path to 'cpp' on your
            system. If no path is provided, it attempts to just
            execute 'cpp', so it must be in your PATH.

        cpp_args:
            If use_cpp is True, set this to the command line
            arguments strings to cpp. Be careful with quotes -
            it's best to pass a raw string (r'') here.
            For example:
            r'-I../utils/fake_libc_include'
            If several arguments are required, pass a list of
            strings.

        When successful, an AST is returned. ParseError can be
        thrown if the file doesn't parse successfully.

        Errors from cpp will be printed out.
    """
    if use_cpp:
        path_list = [cpp_path]
        if isinstance(cpp_args, ListType):
            path_list += cpp_args
        elif cpp_args != '':
            path_list += [cpp_args]
        path_list += [filename]

        # Note the use of universal_newlines to treat all newlines
        # as \n for Python's purpose
        #
        pipe = Popen(path_list, stdout=PIPE, universal_newlines=True)
        text = pipe.communicate()[0]
    else:
        text = open(filename).read()

    parser = CParser()
    return parser.parse(text, filename)
コード例 #3
0
ファイル: bwcc-gui.py プロジェクト: mengyu-cmd/bwcc
 def compile(self):
     parser = CParser()
     ast = parser.parse(self.textSrc.toPlainText())
     self.textAST.setText(ast.toString(attrnames=True, nodenames=True))
     translator = CTranslator()
     translator.visit(ast)
     codes = translator.get_codes()
     code_text = ''
     for code in codes:
         code_text += str(code) + '\n'
     self.textCode.setText(code_text)
     codes = translator.get_codes()
     tables = translator.get_tables()
     assembler = CAssembler(tables)
     asm = assembler.asm(codes)
     self.textAsm.setText(asm)
     with open('hello.s', 'w') as f:
         f.write(asm)
     os.system('gcc {filename} -o hello.exe'.format(filename='hello.s'))
     self.statusBar().showMessage('编译完成!请点击运行程序。')
コード例 #4
0
ファイル: __init__.py プロジェクト: Yashchuk/diplom
def parse_file(filename, use_cpp=False, cpp_path='cpp', cpp_args='',
               parser=None):
    """ Parse a C file using pycparser.

        filename:
            Name of the file you want to parse.

        use_cpp:
            Set to True if you want to execute the C pre-processor
            on the file prior to parsing it.

        cpp_path:
            If use_cpp is True, this is the path to 'cpp' on your
            system. If no path is provided, it attempts to just
            execute 'cpp', so it must be in your PATH.

        cpp_args:
            If use_cpp is True, set this to the command line arguments strings
            to cpp. Be careful with quotes - it's best to pass a raw string
            (r'') here. For example:
            r'-I../utils/fake_libc_include'
            If several arguments are required, pass a list of strings.

        parser:
            Optional parser object to be used instead of the default CParser

        When successful, an AST is returned. ParseError can be
        thrown if the file doesn't parse successfully.

        Errors from cpp will be printed out.
    """
    # if use_cpp:
    #     text = preprocess_file(filename, cpp_path, cpp_args)
    # else:
    #     with open(filename, 'rU') as f:
    #         text = f.read()

    if parser is None:
        parser = CParser()
    return parser.parse(text, filename)
コード例 #5
0
ファイル: C_TO_IR.py プロジェクト: mdkaleem364/C_TO_IR
        elif type(nodeObj) is If:
            handleIfElse(nodeObj)

        elif type(nodeObj) is For:
            handleForLoops(nodeObj)

        elif type(nodeObj) is Decl:
            handleDeclerations(nodeObj)

        elif type(nodeObj) is UnaryOp:
            handleUnaryOp(nodeObj)

        else:
            # are all other objs iterable ??
            # handled recursively on children
            for child in nodeObj:
                dfs(child)


######################
## exec starts here
######################

parser = CParser()
with open("temp.c", 'rU') as f:
    text = f.read()
syntaxTree = parser.parse(text, "temp.c")

dfs(syntaxTree)
コード例 #6
0
ファイル: meta.py プロジェクト: NathanJWr/meta-c
options = get_options()
bounds_checked = options.bounds_checked
null_on_free = options.null_on_free
file_list = options.input

while source_file_count < len(file_list):
    cur_file = open(file_list[source_file_count], 'r')
    token_list: Deque[CToken] = deque()
    tokenizer = Tokenizer()
    tokenizer.nexttok(cur_file)
    while (1):
        tok = tokenizer.nexttok(cur_file)
        token_list.append(tok)
        if tok.val == Tok.eof:
            break

    output = Output()
    parser = CParser(bounds_checked, null_on_free)
    parser.parse(output, token_list, source_file_count)

    # output to files
    output.output_to_file(source_file_count, cur_file)
    source_file_count += 1
    print(source_file_count)
    cur_file.close()

finish_time = time.time()

print("Time taken: " + str(finish_time - init_time) + "s")
コード例 #7
0
    pass


def dfs(nodeObj):

    if (nodeObj):
        if type(nodeObj) is Assignment:
            handleAssignmentOp(nodeObj)
            pass

        elif type(nodeObj) is While or type(nodeObj) is DoWhile:
            handleWhileLoops(nodeObj)

        elif type(nodeObj) is FuncCall:
            handleFunctionCalls(nodeObj)

        elif type(nodeObj) is If:
            handleIfElse(nodeObj)

        else:
            for child in nodeObj:
                dfs(child)


parser = CParser()
with open("testing_c_file.c", 'rU') as f:
    text = f.read()
syntaxTree = parser.parse(text, "testing_c_file.c")

dfs(syntaxTree)
コード例 #8
0
ファイル: bwcc.py プロジェクト: mengyu-cmd/bwcc
from c_assembler import CAssembler
import os

data = '''
int main(){
    for(int i = 1; i < 10; i++){
        for(int j = 1; j<10; j++){
            printf("%d*%d=%d\t", i, j, i*j);
        }
        printf("\n");
    }
}
        '''

parser = CParser()
ast = parser.parse(data)
# ast.show(attrnames=True, nodenames=True)
print(ast.toString(attrnames=True, nodenames=True))

translator = CTranslator()
translator.visit(ast)
for code in translator.get_codes():
    print(code)
tables = translator.get_tables()
print(tables['symbol_table'])
codes = translator.get_codes()
assembler = CAssembler(tables)
asm = assembler.asm(codes)
print(asm)
with open('hello.s', 'w') as f:
    f.write(asm)
コード例 #9
0
ファイル: test.py プロジェクト: mengyu-cmd/bwcc
from c_parser import CParser

data = '''

int main(double args){
    char c = 'B';
    char d[100];
    for (int i = 0; i < 10; i++){
        printf(i);
    }
    if (a>b) printf(">");

}

void printf(int str){
    return 0;
}
        '''

parser = CParser()
ast = parser.parse(data, '<none>')
# ast.show(attrnames=True, nodenames=True)
for decl in ast:
    decl.show(attrnames=True, nodenames=True)