Restrict fix to where we really need it.

* Correct example/Jamfile.v2 so that grep gets valid command line arguments.

example/Jamfile.v2

@@ -44,7 +44,7 @@ path-constant HERE : . ;
 test-suite regex-examples :
 
 [ regex-test-run timer/regex_timer.cpp /boost/smart_ptr//boost_smart_ptr : $(HERE)/timer/input_script.txt ]
-[ regex-test-run grep/grep.cpp /boost/program_options//boost_program_options/<link>static : -n -b $(HERE)/../include/boost/regex.hpp : test_grep ]
+[ regex-test-run grep/grep.cpp /boost/program_options//boost_program_options/<link>static : -n -b -E include $(HERE)/../include/boost/regex.hpp : test_grep ]
 [ regex-test-run snippets/credit_card_example.cpp ]
 [ regex-test-run snippets/mfc_example.cpp ]
 [ regex-test-run snippets/icu_example.cpp ]

include/boost/regex/v5/perl_matcher_non_recursive.hpp

@@ -1204,7 +1204,10 @@ bool perl_matcher<BidiIterator, Allocator, traits>::skip_until_paren(int index,
       else if(pstate->type == syntax_element_startmark)
       {
          int idx = static_cast<const re_brace*>(pstate)->index;
-         pstate = pstate->next.p;
+         if(idx > 0)
+            match_startmark();
+         else
+            pstate = pstate->next.p;
          skip_until_paren(idx, false);
          continue;
       }

src/wide_posix_api.cpp

@@ -16,6 +16,7 @@
   *   DESCRIPTION: Implements the wide character POSIX API wrappers.
   */
 
+#define _CRT_SECURE_NO_WARNINGS // for std::wcscpy
 #define BOOST_REGEX_SOURCE
 
 #include <boost/regex/config.hpp>
@@ -169,11 +170,7 @@ BOOST_REGEX_DECL regsize_t BOOST_REGEX_CCALL regerrorW(int code, const regex_tW*
       {
          result = std::wcslen(wnames[code]) + 1;
          if(buf_size >= result)
-#if (BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(_WIN32_WCE) && !defined(UNDER_CE)) || (defined(BOOST_CLANG) && defined(_MSC_VER))
-            ::wcscpy_s(buf, buf_size, wnames[code]);
-#else
             std::wcscpy(buf, wnames[code]);
-#endif
          return result;
       }
       return result;
@@ -193,11 +190,7 @@ BOOST_REGEX_DECL regsize_t BOOST_REGEX_CCALL regerrorW(int code, const regex_tW*
             (boost::core::swprintf)(localbuf, 5, L"%d", i);
 #endif
             if(std::wcslen(localbuf) < buf_size)
-#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(_WIN32_WCE) && !defined(UNDER_CE)
-               ::wcscpy_s(buf, buf_size, localbuf);
-#else
                std::wcscpy(buf, localbuf);
-#endif
             return std::wcslen(localbuf) + 1;
          }
       }
@@ -207,11 +200,7 @@ BOOST_REGEX_DECL regsize_t BOOST_REGEX_CCALL regerrorW(int code, const regex_tW*
       (boost::core::swprintf)(localbuf, 5, L"%d", 0);
 #endif
       if(std::wcslen(localbuf) < buf_size)
-#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400) && !defined(_WIN32_WCE) && !defined(UNDER_CE)
-         ::wcscpy_s(buf, buf_size, localbuf);
-#else
          std::wcscpy(buf, localbuf);
-#endif
       return std::wcslen(localbuf) + 1;
    }
    if(code <= (int)REG_E_UNKNOWN)

test/Jamfile.v2

@@ -135,3 +135,4 @@ compile test_windows_defs_3.cpp ;
 compile test_windows_defs_4.cpp ;
 
 run issue153.cpp : : : "<toolset>msvc:<linkflags>-STACK:2097152" ;
+run issue227.cpp ;

test/cmake_subdir_test_icu/CMakeLists.txt

@@ -19,4 +19,4 @@ target_link_libraries(quick_icu Boost::regex_icu)
 enable_testing()
 add_test(quick_icu quick_icu)
 
-add_custom_target(check COMMAND ${CMAKE_CTEST_COMMAND} --output-on-failure -C $<CONFIG>)
+add_custom_target(check VERBATIM COMMAND ${CMAKE_CTEST_COMMAND} --output-on-failure -C $<CONFIG>)

test/issue227.cpp

@@ -0,0 +1,19 @@
+/*
+* Copyright (c) 2024
+* Christian Mazakas
+*
+* 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 <boost/regex.hpp>
+#include <string>
+
+int main() {
+   boost::regex rx("(*ACCEPT)*+\\1((*ACCEPT)*+\\K)");
+   std::string str = "Z";
+   boost::smatch what;
+   boost::regex_search(str, what, rx, boost::match_default | boost::match_partial);
+}