Fix ticket #302 (White space between "\" and newline not handled correctly)

http://apps.sourceforge.net/trac/cppcheck/ticket/302
This commit is contained in:
Reijo Tomperi 2009-05-11 21:12:29 +03:00
parent 15bbd4613e
commit fede702bf5
2 changed files with 34 additions and 1 deletions

View File

@ -159,7 +159,21 @@ std::string Preprocessor::read(std::istream &istr)
// <backspace><newline>..
else if (ch == '\\')
{
char chNext = (char)istr.peek();
char chNext = 0;
while (true)
{
chNext = (char)istr.peek();
if (chNext != '\n' && chNext != '\r' &&
(std::isspace(chNext) || std::iscntrl(chNext)))
{
// Skip whitespace between <backspace> and <newline>
(void)readChar(istr);
continue;
}
break;
}
if (chNext == '\n' || chNext == '\r')
{
++newlines;

View File

@ -86,6 +86,7 @@ private:
TEST_CASE(multiline1);
TEST_CASE(multiline2);
TEST_CASE(multiline3);
TEST_CASE(multiline4);
TEST_CASE(if_defined); // "#if defined(AAA)" => "#ifdef AAA"
@ -516,7 +517,24 @@ private:
ASSERT_EQUALS("const char *str = \"abcdefghi\"\n\n\n", preprocessor.read(istr));
}
void multiline4()
{
errout.str("");
const char filedata[] = "#define A int a = 4;\\ \n"
" int b = 5;\n"
"A\n";
// Preprocess => actual result..
std::istringstream istr(filedata);
std::map<std::string, std::string> actual;
Preprocessor preprocessor;
preprocessor.preprocess(istr, actual, "file.c");
// Compare results..
ASSERT_EQUALS(1, static_cast<unsigned int>(actual.size()));
ASSERT_EQUALS("\n\nint a = 4; int b = 5;\n", actual[""]);
ASSERT_EQUALS("", errout.str());
}
void if_defined()
{
@ -892,6 +910,7 @@ private:
void define_part_of_func()
{
errout.str("");
const char filedata[] = "#define A g(\n"
"void f() {\n"
" A );\n"