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1371b2e56e
cxx/test/re/re.alg/re.alg.search/extended.pass.cpp
Howard Hinnant 1371b2e56e A few more tests for posix extended alternation 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@109107 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22 14:12:20 +00:00

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <regex>
// template <class BidirectionalIterator, class Allocator, class charT, class traits>
// bool
// regex_search(BidirectionalIterator first, BidirectionalIterator last,
// match_results<BidirectionalIterator, Allocator>& m,
// const basic_regex<charT, traits>& e,
// regex_constants::match_flag_type flags = regex_constants::match_default);
#include <regex>
#include <cassert>
#include "../../iterators.h"
int main()
{
{
std::cmatch m;
const char s[] = "a";
assert(std::regex_search(s, m, std::regex("a", std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.empty());
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+1);
assert(m.length(0) == 1);
assert(m.position(0) == 0);
assert(m.str(0) == "a");
}
{
std::cmatch m;
const char s[] = "ab";
assert(std::regex_search(s, m, std::regex("ab", std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+2);
assert(m.length(0) == 2);
assert(m.position(0) == 0);
assert(m.str(0) == "ab");
}
{
std::cmatch m;
const char s[] = "ab";
assert(!std::regex_search(s, m, std::regex("ba", std::regex_constants::extended)));
assert(m.size() == 0);
assert(m.empty());
}
{
std::cmatch m;
const char s[] = "aab";
assert(std::regex_search(s, m, std::regex("ab", std::regex_constants::extended)));
assert(m.size() == 1);
assert(m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+3);
assert(m.length(0) == 2);
assert(m.position(0) == 1);
assert(m.str(0) == "ab");
}
{
std::cmatch m;
const char s[] = "aab";
assert(!std::regex_search(s, m, std::regex("ab", std::regex_constants::extended),
std::regex_constants::match_continuous));
assert(m.size() == 0);
}
{
std::cmatch m;
const char s[] = "abcd";
assert(std::regex_search(s, m, std::regex("bc", std::regex_constants::extended)));
assert(m.size() == 1);
assert(m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+4);
assert(m.length(0) == 2);
assert(m.position(0) == 1);
assert(m.str(0) == "bc");
}
{
std::cmatch m;
const char s[] = "abbc";
assert(std::regex_search(s, m, std::regex("ab*c", std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+4);
assert(m.length(0) == 4);
assert(m.position(0) == 0);
assert(m.str(0) == s);
}
{
std::cmatch m;
const char s[] = "ababc";
assert(std::regex_search(s, m, std::regex("(ab)*c", std::regex_constants::extended)));
assert(m.size() == 2);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+5);
assert(m.length(0) == 5);
assert(m.position(0) == 0);
assert(m.str(0) == s);
assert(m.length(1) == 2);
assert(m.position(1) == 2);
assert(m.str(1) == "ab");
}
{
std::cmatch m;
const char s[] = "abcdefghijk";
assert(std::regex_search(s, m, std::regex("cd((e)fg)hi",
std::regex_constants::extended)));
assert(m.size() == 3);
assert(m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+std::regex_traits<char>::length(s));
assert(m.length(0) == 7);
assert(m.position(0) == 2);
assert(m.str(0) == "cdefghi");
assert(m.length(1) == 3);
assert(m.position(1) == 4);
assert(m.str(1) == "efg");
assert(m.length(2) == 1);
assert(m.position(2) == 4);
assert(m.str(2) == "e");
}
{
std::cmatch m;
const char s[] = "abc";
assert(std::regex_search(s, m, std::regex("^abc", std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+3);
assert(m.length(0) == 3);
assert(m.position(0) == 0);
assert(m.str(0) == s);
}
{
std::cmatch m;
const char s[] = "abcd";
assert(std::regex_search(s, m, std::regex("^abc", std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+4);
assert(m.length(0) == 3);
assert(m.position(0) == 0);
assert(m.str(0) == "abc");
}
{
std::cmatch m;
const char s[] = "aabc";
assert(!std::regex_search(s, m, std::regex("^abc", std::regex_constants::extended)));
assert(m.size() == 0);
}
{
std::cmatch m;
const char s[] = "abc";
assert(std::regex_search(s, m, std::regex("abc$", std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+3);
assert(m.length(0) == 3);
assert(m.position(0) == 0);
assert(m.str(0) == s);
}
{
std::cmatch m;
const char s[] = "efabc";
assert(std::regex_search(s, m, std::regex("abc$", std::regex_constants::extended)));
assert(m.size() == 1);
assert(m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+5);
assert(m.length(0) == 3);
assert(m.position(0) == 2);
assert(m.str(0) == s+2);
}
{
std::cmatch m;
const char s[] = "efabcg";
assert(!std::regex_search(s, m, std::regex("abc$", std::regex_constants::extended)));
assert(m.size() == 0);
}
{
std::cmatch m;
const char s[] = "abc";
assert(std::regex_search(s, m, std::regex("a.c", std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+3);
assert(m.length(0) == 3);
assert(m.position(0) == 0);
assert(m.str(0) == s);
}
{
std::cmatch m;
const char s[] = "acc";
assert(std::regex_search(s, m, std::regex("a.c", std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+3);
assert(m.length(0) == 3);
assert(m.position(0) == 0);
assert(m.str(0) == s);
}
{
std::cmatch m;
const char s[] = "acc";
assert(std::regex_search(s, m, std::regex("a.c", std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+3);
assert(m.length(0) == 3);
assert(m.position(0) == 0);
assert(m.str(0) == s);
}
{
std::cmatch m;
const char s[] = "abcdef";
assert(std::regex_search(s, m, std::regex("(.*).*", std::regex_constants::extended)));
assert(m.size() == 2);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+6);
assert(m.length(0) == 6);
assert(m.position(0) == 0);
assert(m.str(0) == s);
assert(m.length(1) == 6);
assert(m.position(1) == 0);
assert(m.str(1) == s);
}
{
std::cmatch m;
const char s[] = "bc";
assert(std::regex_search(s, m, std::regex("(a*)*", std::regex_constants::extended)));
assert(m.size() == 2);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == s+2);
assert(m.length(0) == 0);
assert(m.position(0) == 0);
assert(m.str(0) == "");
assert(m.length(1) == 0);
assert(m.position(1) == 0);
assert(m.str(1) == "");
}
{
std::cmatch m;
const char s[] = "abbc";
assert(!std::regex_search(s, m, std::regex("ab{3,5}c", std::regex_constants::extended)));
assert(m.size() == 0);
}
{
std::cmatch m;
const char s[] = "abbbc";
assert(std::regex_search(s, m, std::regex("ab{3,5}c", std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == m[0].second);
assert(m.length(0) == std::char_traits<char>::length(s));
assert(m.position(0) == 0);
assert(m.str(0) == s);
}
{
std::cmatch m;
const char s[] = "abbbbc";
assert(std::regex_search(s, m, std::regex("ab{3,5}c", std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == m[0].second);
assert(m.length(0) == std::char_traits<char>::length(s));
assert(m.position(0) == 0);
assert(m.str(0) == s);
}
{
std::cmatch m;
const char s[] = "abbbbbc";
assert(std::regex_search(s, m, std::regex("ab{3,5}c", std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == m[0].second);
assert(m.length(0) == std::char_traits<char>::length(s));
assert(m.position(0) == 0);
assert(m.str(0) == s);
}
{
std::cmatch m;
const char s[] = "adefc";
assert(!std::regex_search(s, m, std::regex("ab{3,5}c", std::regex_constants::extended)));
assert(m.size() == 0);
}
{
std::cmatch m;
const char s[] = "abbbbbbc";
assert(!std::regex_search(s, m, std::regex("ab{3,5}c", std::regex_constants::extended)));
assert(m.size() == 0);
}
{
std::cmatch m;
const char s[] = "adec";
assert(!std::regex_search(s, m, std::regex("a.{3,5}c", std::regex_constants::extended)));
assert(m.size() == 0);
}
{
std::cmatch m;
const char s[] = "adefc";
assert(std::regex_search(s, m, std::regex("a.{3,5}c", std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == m[0].second);
assert(m.length(0) == std::char_traits<char>::length(s));
assert(m.position(0) == 0);
assert(m.str(0) == s);
}
{
std::cmatch m;
const char s[] = "adefgc";
assert(std::regex_search(s, m, std::regex("a.{3,5}c", std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == m[0].second);
assert(m.length(0) == std::char_traits<char>::length(s));
assert(m.position(0) == 0);
assert(m.str(0) == s);
}
{
std::cmatch m;
const char s[] = "adefghc";
assert(std::regex_search(s, m, std::regex("a.{3,5}c", std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == m[0].second);
assert(m.length(0) == std::char_traits<char>::length(s));
assert(m.position(0) == 0);
assert(m.str(0) == s);
}
{
std::cmatch m;
const char s[] = "adefghic";
assert(!std::regex_search(s, m, std::regex("a.{3,5}c", std::regex_constants::extended)));
assert(m.size() == 0);
}
{
std::cmatch m;
const char s[] = "tournament";
assert(std::regex_search(s, m, std::regex("tour|to|tournament",
std::regex_constants::extended)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == m[0].second);
assert(m.length(0) == std::char_traits<char>::length(s));
assert(m.position(0) == 0);
assert(m.str(0) == s);
}
{
std::cmatch m;
const char s[] = "tournamenttotour";
assert(std::regex_search(s, m, std::regex("(tour|to|tournament)+",
std::regex_constants::extended | std::regex_constants::nosubs)));
assert(m.size() == 1);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == m[0].second);
assert(m.length(0) == std::char_traits<char>::length(s));
assert(m.position(0) == 0);
assert(m.str(0) == s);
}
{
std::cmatch m;
const char s[] = "ttotour";
assert(std::regex_search(s, m, std::regex("(tour|to|t)+",
std::regex_constants::extended)));
assert(m.size() == 2);
assert(!m.prefix().matched);
assert(m.prefix().first == s);
assert(m.prefix().second == m[0].first);
assert(!m.suffix().matched);
assert(m.suffix().first == m[0].second);
assert(m.suffix().second == m[0].second);
assert(m.length(0) == std::char_traits<char>::length(s));
assert(m.position(0) == 0);
assert(m.str(0) == s);
assert(m.length(1) == 4);
assert(m.position(1) == 3);
assert(m.str(1) == "tour");
}
}
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