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regex/test/regress/test_escapes.cpp

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/*
*
* Copyright (c) 2004
* John Maddock
*
* Use, modification and distribution are subject to the
* Boost Software License, Version 1.0. (See accompanying file
* LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*
*/
#include "test.hpp"
#ifdef BOOST_MSVC
#pragma warning(disable:4127 4428)
#endif
void test_character_escapes()
{
using namespace boost::regex_constants;
// characters by code
TEST_REGEX_SEARCH("\\0101", perl, "A", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\00", perl, "\0", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\0", perl, "\0", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\0172", perl, "z", match_default, make_array(0, 1, -2, -2));
// extra escape sequences:
TEST_REGEX_SEARCH("\\a", perl, "\a", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\f", perl, "\f", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\n", perl, "\n", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\r", perl, "\r", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\v", perl, "\v", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\t", perl, "\t", match_default, make_array(0, 1, -2, -2));
// updated tests for version 2:
TEST_REGEX_SEARCH("\\x41", perl, "A", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\xff", perl, "\xff", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\xFF", perl, "\xff", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\c@", perl, "\0", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\cA", perl, "\x1", match_default, make_array(0, 1, -2, -2));
//TEST_REGEX_SEARCH("\\cz", perl, "\x3A", match_default, make_array(0, 1, -2, -2));
//TEST_INVALID_REGEX("\\c=", boost::regex::extended);
//TEST_INVALID_REGEX("\\c?", boost::regex::extended);
TEST_REGEX_SEARCH("=:", perl, "=:", match_default, make_array(0, 2, -2, -2));
TEST_REGEX_SEARCH("\\e", perl, "\x1B", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\x1b", perl, "\x1B", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\x{1b}", perl, "\x1B", match_default, make_array(0, 1, -2, -2));
TEST_INVALID_REGEX("\\x{}", perl);
TEST_INVALID_REGEX("\\x{", perl);
TEST_INVALID_REGEX("\\", perl);
TEST_INVALID_REGEX("\\c", perl);
TEST_INVALID_REGEX("\\x}", perl);
TEST_INVALID_REGEX("\\x", perl);
TEST_INVALID_REGEX("\\x{yy", perl);
TEST_INVALID_REGEX("\\x{1b", perl);
// \Q...\E sequences:
TEST_INVALID_REGEX("\\Qabc\\", perl);
TEST_REGEX_SEARCH("\\Qabc\\E", perl, "abcd", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("\\Qabc\\Ed", perl, "abcde", match_default, make_array(0, 4, -2, -2));
TEST_REGEX_SEARCH("\\Q+*?\\\\E", perl, "+*?\\", match_default, make_array(0, 4, -2, -2));
TEST_REGEX_SEARCH("a\\Q+*?\\\\Eb", perl, "a+*?\\b", match_default, make_array(0, 6, -2, -2));
TEST_REGEX_SEARCH("\\C+", perl, "abcde", match_default, make_array(0, 5, -2, -2));
TEST_REGEX_SEARCH("\\X+", perl, "abcde", match_default, make_array(0, 5, -2, -2));
#if !BOOST_WORKAROUND(__BORLANDC__, < 0x560)
TEST_REGEX_SEARCH_W(L"\\X", perl, L"a\x0300\x0301", match_default, make_array(0, 3, -2, -2));
#endif
// unknown escape sequences match themselves:
TEST_REGEX_SEARCH("\\~", perl, "~", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\~", basic, "~", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\~", boost::regex::extended, "~", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\j", boost::regex::extended, "j", match_default, make_array(0, 1, -2, -2));
}
void test_assertion_escapes()
{
using namespace boost::regex_constants;
// word start:
TEST_REGEX_SEARCH("\\<abcd", perl, " abcd", match_default, make_array(2, 6, -2, -2));
TEST_REGEX_SEARCH("\\<ab", perl, "cab", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("\\<ab", perl, "\nab", match_default, make_array(1, 3, -2, -2));
TEST_REGEX_SEARCH("\\<tag", perl, "::tag", match_default, make_array(2, 5, -2, -2));
TEST_REGEX_SEARCH("\\<abcd", perl, "abcd", match_default|match_not_bow, make_array(-2, -2));
TEST_REGEX_SEARCH("\\<abcd", perl, " abcd", match_default|match_not_bow, make_array(2, 6, -2, -2));
TEST_REGEX_SEARCH("\\<", perl, "ab ", match_default|match_not_bow, make_array(-2, -2));
TEST_REGEX_SEARCH(".\\<.", perl, "ab", match_default|match_not_bow, make_array(-2, -2));
TEST_REGEX_SEARCH(".\\<.", perl, " b", match_default|match_not_bow, make_array(0, 2, -2, -2));
// word end:
TEST_REGEX_SEARCH("abc\\>", perl, "abc", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("abc\\>", perl, "abcd", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("abc\\>", perl, "abc\n", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("abc\\>", perl, "abc::", match_default, make_array(0,3, -2, -2));
TEST_REGEX_SEARCH("abc(?:\\>..|$)", perl, "abc::", match_default, make_array(0, 5, -2, -2));
TEST_REGEX_SEARCH("\\>", perl, " ", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH(".\\>.", perl, " ", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("abc\\>", perl, "abc", match_default|match_not_eow, make_array(-2, -2));
// word boundary:
TEST_REGEX_SEARCH("\\babcd", perl, " abcd", match_default, make_array(2, 6, -2, -2));
TEST_REGEX_SEARCH("\\bab", perl, "cab", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("\\bab", perl, "\nab", match_default, make_array(1, 3, -2, -2));
TEST_REGEX_SEARCH("\\btag", perl, "::tag", match_default, make_array(2, 5, -2, -2));
TEST_REGEX_SEARCH("abc\\b", perl, "abc", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("abc\\b", perl, "abcd", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("abc\\b", perl, "abc\n", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("abc\\b", perl, "abc::", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("\\babcd", perl, "abcd", match_default|match_not_bow, make_array(-2, -2));
// within word:
TEST_REGEX_SEARCH("\\B", perl, "ab", match_default, make_array(1, 1, -2, -2));
TEST_REGEX_SEARCH("a\\Bb", perl, "ab", match_default, make_array(0, 2, -2, -2));
TEST_REGEX_SEARCH("a\\B", perl, "ab", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("a\\B", perl, "a", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("a\\B", perl, "a ", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("\\By\\b", perl, "xy", match_default, make_array(1, 2, -2, -2));
TEST_REGEX_SEARCH("\\by\\B", perl, "yz", match_default, make_array(0, 1, -2, -2));
TEST_REGEX_SEARCH("\\B\\*\\B", perl, " * ", match_default, make_array(1, 2, -2, -2));
// buffer operators:
TEST_REGEX_SEARCH("\\`abc", perl, "abc", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("\\`abc", perl, "\nabc", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("\\`abc", perl, " abc", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("abc\\'", perl, "abc", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("abc\\'", perl, "abc\n", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("abc\\'", perl, "abc ", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("abc(?:\\'|$)", perl, "abc", match_default, make_array(0, 3, -2, -2));
// word start:
TEST_REGEX_SEARCH("[[:<:]]abcd", perl, " abcd", match_default, make_array(2, 6, -2, -2));
TEST_REGEX_SEARCH("[[:<:]]ab", perl, "cab", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("[[:<:]]ab", perl, "\nab", match_default, make_array(1, 3, -2, -2));
TEST_REGEX_SEARCH("[[:<:]]tag", perl, "::tag", match_default, make_array(2, 5, -2, -2));
// word end
TEST_REGEX_SEARCH("abc[[:>:]]", perl, "abc", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("abc[[:>:]]", perl, "abcd", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("abc[[:>:]]", perl, "abc\n", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("abc[[:>:]]", perl, "abc::", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("\\Aabc", perl, "abc", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("\\Aabc", perl, "aabc", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("abc\\z", perl, "abc", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("abc\\z", perl, "abcd", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("abc\\Z", perl, "abc\n\n", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("abc\\Z", perl, "abc\n\n", match_default|match_not_eob, make_array(-2, -2));
TEST_REGEX_SEARCH("abc\\Z", perl, "abc", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("\\Gabc", perl, "abc", match_default, make_array(0, 3, -2, -2));
TEST_REGEX_SEARCH("\\Gabc", perl, "dabcd", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("a\\Gbc", perl, "abc", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("a\\Aab", perl, "abc", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("abc(?:\\Z|$)", perl, "abc\n\n", match_default, make_array(0, 3, -2, -2));
// Buffer reset \K:
TEST_REGEX_SEARCH("(foo)\\Kbar", perl, "foobar", match_default, make_array(3, 6, 0, 3, -2, -2));
TEST_REGEX_SEARCH("(foo)(\\Kbar|baz)", perl, "foobar", match_default, make_array(3, 6, 0, 3, 3, 6, -2, -2));
TEST_REGEX_SEARCH("(foo)(\\Kbar|baz)", perl, "foobaz", match_default, make_array(0, 6, 0, 3, 3, 6, -2, -2));
TEST_REGEX_SEARCH("(foo\\Kbar)baz", perl, "foobarbaz", match_default, make_array(3, 9, 0, 6, -2, -2));
// Line ending \R:
TEST_REGEX_SEARCH("\\R", perl, "foo\nbar", match_default, make_array(3, 4, -2, -2));
TEST_REGEX_SEARCH("\\R", perl, "foo\rbar", match_default, make_array(3, 4, -2, -2));
TEST_REGEX_SEARCH("\\R", perl, "foo\r\nbar", match_default, make_array(3, 5, -2, -2));
TEST_REGEX_SEARCH("(?x) abc \\R", perl, "abc\r\nbar", match_default, make_array(0, 5, -2, -2));
TEST_REGEX_SEARCH("(?x) abc \\R", perl, "abc\012bar", match_default, make_array(0, 4, -2, -2));
TEST_REGEX_SEARCH("(?x) abc \\R", perl, "abc\013bar", match_default, make_array(0, 4, -2, -2));
TEST_REGEX_SEARCH("(?x) abc \\R", perl, "abc\013bar", match_default, make_array(0, 4, -2, -2));
TEST_REGEX_SEARCH("(?x) abc \\R", perl, "abc\205bar", match_default, make_array(0, 4, -2, -2));
// see if \u works:
const wchar_t* w = L"\u2028";
if(*w == 0x2028u)
{
TEST_REGEX_SEARCH_W(L"\\R", perl, L"foo\u2028bar", match_default, make_array(3, 4, -2, -2));
TEST_REGEX_SEARCH_W(L"\\R", perl, L"foo\u2029bar", match_default, make_array(3, 4, -2, -2));
TEST_REGEX_SEARCH_W(L"(?x) abc \\R", perl, L"abc\u2028bar", match_default, make_array(0, 4, -2, -2));
TEST_REGEX_SEARCH_W(L"(?x) abc \\R", perl, L"abc\u2029bar", match_default, make_array(0, 4, -2, -2));
}
// Bug report: https://github.com/boostorg/regex/issues/40
TEST_REGEX_SEARCH("\\b", perl, "", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("\\b", perl, "", match_not_bow, make_array(-2, -2));
TEST_REGEX_SEARCH("\\b", perl, "", match_not_eow, make_array(-2, -2));
TEST_REGEX_SEARCH("\\b", perl, "", match_not_bow | match_not_eow, make_array(-2, -2));
TEST_REGEX_SEARCH("\\b", perl, "-", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("\\b", perl, "-", match_not_bow, make_array(-2, -2));
TEST_REGEX_SEARCH("\\b", perl, "-", match_not_eow, make_array(-2, -2));
TEST_REGEX_SEARCH("\\b", perl, "-", match_not_bow | match_not_eow, make_array(-2, -2));
TEST_REGEX_SEARCH("\\<", perl, "", match_default, make_array(-2, -2));
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));
TEST_REGEX_SEARCH("\\<", perl, "-", match_default, make_array(-2, -2));
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));
TEST_REGEX_SEARCH("\\>", perl, "", match_default, make_array(-2, -2));
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));
TEST_REGEX_SEARCH("\\>", perl, "-", match_default, make_array(-2, -2));
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));
}
}
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