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Fix \R when no_escapes_in_list flag is set.

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Fixes: https://github.com/boostorg/regex/issues/57
This commit is contained in:
jzmaddock
2018-07-22 11:26:33 +01:00
parent 231dbc3ebf
commit 2517588955
2 changed files with 29 additions and 10 deletions
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21
include/boost/regex/v4/regex_traits_defaults.hpp
View File

@ -39,6 +39,7 @@
#include <boost/regex/v4/error_type.hpp>
#endif
#include <boost/type_traits/make_unsigned.hpp>
#include <boost/utility/enable_if.hpp>
#ifdef BOOST_NO_STDC_NAMESPACE
namespace std{
@ -327,17 +328,17 @@ boost::intmax_t global_toi(const charT*& p1, const charT* p2, int radix, const t
}
template <class charT>
inline const charT* get_escape_R_string()
inline typename boost::enable_if_c<(sizeof(charT) > 1), const charT*>::type get_escape_R_string()
{
#ifdef BOOST_MSVC
# pragma warning(push)
# pragma warning(disable:4309 4245)
#endif
static const charT e1[] = { '(', '?', '>', '\\', 'x', '0', 'D', '\\', 'x', '0', 'A', '?',
'|', '[', '\\', 'x', '0', 'A', '\\', 'x', '0', 'B', '\\', 'x', '0', 'C', static_cast<unsigned char>('\x85'), '\\', 'x', '{', '2', '0', '2', '8', '}',
'\\', 'x', '{', '2', '0', '2', '9', '}', ']', ')', '\0' };
static const charT e2[] = { '(', '?', '>', '\\', 'x', '0', 'D', '\\', 'x', '0', 'A', '?',
'|', '[', '\\', 'x', '0', 'A', '\\', 'x', '0', 'B', '\\', 'x', '0', 'C', static_cast<unsigned char>('\x85'), ']', ')', '\0' };
static const charT e1[] = { '(', '?', '-', 'x', ':', '(', '?', '>', '\x0D', '\x0A', '?',
'|', '[', '\x0A', '\x0B', '\x0C', static_cast<charT>(0x85), static_cast<charT>(0x2028),
static_cast<charT>(0x2029), ']', ')', ')', '\0' };
static const charT e2[] = { '(', '?', '-', 'x', ':', '(', '?', '>', '\x0D', '\x0A', '?',
'|', '[', '\x0A', '\x0B', '\x0C', static_cast<charT>(0x85), ']', ')', ')', '\0' };
charT c = static_cast<charT>(0x2029u);
bool b = (static_cast<unsigned>(c) == 0x2029u);
@ -348,15 +349,15 @@ inline const charT* get_escape_R_string()
#endif
}
template <>
inline const char* get_escape_R_string<char>()
template <class charT>
inline typename boost::disable_if_c<(sizeof(charT) > 1), const charT*>::type get_escape_R_string()
{
#ifdef BOOST_MSVC
# pragma warning(push)
# pragma warning(disable:4309)
#endif
static const char e2[] = { '(', '?', '>', '\\', 'x', '0', 'D', '\\', 'x', '0', 'A', '?',
'|', '[', '\\', 'x', '0', 'A', '\\', 'x', '0', 'B', '\\', 'x', '0', 'C', '\\', 'x', '8', '5', ']', ')', '\0' };
static const charT e2[] = { '(', '?', '-', 'x', ':', '(', '?', '>', '\x0D', '\x0A', '?',
'|', '[', '\x0A', '\x0B', '\x0C', '\x85', ']', ')', ')', '\0' };
return e2;
#ifdef BOOST_MSVC
# pragma warning(pop)

18
test/regress/test_escapes.cpp
View File

@ -194,5 +194,23 @@ void test_assertion_escapes()
TEST_REGEX_SEARCH("\\>", perl, "-", match_not_bow, make_array(-2, -2));
TEST_REGEX_SEARCH("\\>", perl, "-", match_not_eow, make_array(-2, -2));
TEST_REGEX_SEARCH("\\>", perl, "-", match_not_bow | match_not_eow, make_array(-2, -2));
// Bug report https://github.com/boostorg/regex/issues/57
// Line ending \R:
TEST_REGEX_SEARCH("\\R", perl | no_escape_in_lists, "foo\nbar", match_default, make_array(3, 4, -2, -2));
TEST_REGEX_SEARCH("\\R", perl | no_escape_in_lists, "foo\rbar", match_default, make_array(3, 4, -2, -2));
TEST_REGEX_SEARCH("\\R", perl | no_escape_in_lists, "foo\r\nbar", match_default, make_array(3, 5, -2, -2));
TEST_REGEX_SEARCH("(?x) abc \\R", perl | no_escape_in_lists, "abc\r\nbar", match_default, make_array(0, 5, -2, -2));
TEST_REGEX_SEARCH("(?x) abc \\R", perl | no_escape_in_lists, "abc\012bar", match_default, make_array(0, 4, -2, -2));
TEST_REGEX_SEARCH("(?x) abc \\R", perl | no_escape_in_lists, "abc\013bar", match_default, make_array(0, 4, -2, -2));
TEST_REGEX_SEARCH("(?x) abc \\R", perl | no_escape_in_lists, "abc\013bar", match_default, make_array(0, 4, -2, -2));
TEST_REGEX_SEARCH("(?x) abc \\R", perl | no_escape_in_lists, "abc\205bar", match_default, make_array(0, 4, -2, -2));
// see if \u works:
if(*w == 0x2028u)
{
TEST_REGEX_SEARCH_W(L"\\R", perl | no_escape_in_lists, L"foo\u2028bar", match_default, make_array(3, 4, -2, -2));
TEST_REGEX_SEARCH_W(L"\\R", perl | no_escape_in_lists, L"foo\u2029bar", match_default, make_array(3, 4, -2, -2));
TEST_REGEX_SEARCH_W(L"(?x) abc \\R", perl | no_escape_in_lists, L"abc\u2028bar", match_default, make_array(0, 4, -2, -2));
TEST_REGEX_SEARCH_W(L"(?x) abc \\R", perl | no_escape_in_lists, L"abc\u2029bar", match_default, make_array(0, 4, -2, -2));
}
}