diff --git a/doc/Attic/examples.html b/doc/Attic/examples.html
index 8f73b69a..737b11ee 100644
--- a/doc/Attic/examples.html
+++ b/doc/Attic/examples.html
@@ -53,13 +53,10 @@
       <P>Directory: <A href="../test/captures">libs/test/captures</A>.</P>
       <P>Files: <A href="../test/captures/captures_test.cpp">captures_test.cpp</A>.</P>
       <H3>Example programs</H3>
-      <H4>jgrep.exe</H4>
-      <P>A simple grep implementation, run with no command line options to find out its 
-         usage. Look at <A href="../src/fileiter.cpp">fileiter.cpp</A>/fileiter.hpp and 
-         the mapfile class to see an example of a "smart" bidirectional iterator that 
-         can be used with boost.regex or any other STL algorithm.</P>
-      <P>Files: <A href="../example/jgrep/jgrep.cpp">jgrep.cpp</A>, <A href="../example/jgrep/main.cpp">
-            main.cpp</A>.</P>
+      <H4>grep</H4>
+      <P>A simple grep implementation, run with the -h command line option to find out 
+         its usage.</P>
+      <P>Files: <A href="../example/grep/grep.cpp">grep.cpp</A></P>
       <H4>timer.exe</H4>
       <P>A simple interactive expression matching application, the results of all 
          matches are timed, allowing the programmer to optimize their regular 
diff --git a/doc/examples.html b/doc/examples.html
index 8f73b69a..737b11ee 100644
--- a/doc/examples.html
+++ b/doc/examples.html
@@ -53,13 +53,10 @@
       <P>Directory: <A href="../test/captures">libs/test/captures</A>.</P>
       <P>Files: <A href="../test/captures/captures_test.cpp">captures_test.cpp</A>.</P>
       <H3>Example programs</H3>
-      <H4>jgrep.exe</H4>
-      <P>A simple grep implementation, run with no command line options to find out its 
-         usage. Look at <A href="../src/fileiter.cpp">fileiter.cpp</A>/fileiter.hpp and 
-         the mapfile class to see an example of a "smart" bidirectional iterator that 
-         can be used with boost.regex or any other STL algorithm.</P>
-      <P>Files: <A href="../example/jgrep/jgrep.cpp">jgrep.cpp</A>, <A href="../example/jgrep/main.cpp">
-            main.cpp</A>.</P>
+      <H4>grep</H4>
+      <P>A simple grep implementation, run with the -h command line option to find out 
+         its usage.</P>
+      <P>Files: <A href="../example/grep/grep.cpp">grep.cpp</A></P>
       <H4>timer.exe</H4>
       <P>A simple interactive expression matching application, the results of all 
          matches are timed, allowing the programmer to optimize their regular 
diff --git a/example/Jamfile b/example/Jamfile
index f7b8c21a..0b0c4572 100644
--- a/example/Jamfile
+++ b/example/Jamfile
@@ -63,7 +63,7 @@ rule regex-test-run ( sources + : input * )
 test-suite regex-examples :
 
 [ regex-test-run timer/regex_timer.cpp <template>../build/msvc-stlport-tricky : $(BOOST_ROOT)/libs/regex/example/timer/input_script.txt ]
-[ regex-test-run jgrep/jgrep.cpp jgrep/main.cpp : -n boost/ $(BOOST_ROOT)/boost/regex.hpp ]
+[ regex-test-run grep/grep.cpp <lib>../../program_options/build/boost_program_options : -n -b $(BOOST_ROOT)/boost/regex.hpp $(BOOST_ROOT)/boost/type_traits.hpp ]
 [ regex-test-run snippets/credit_card_example.cpp ]
 [ regex-test-run snippets/mfc_example.cpp ]
 [ regex-test-run snippets/icu_example.cpp ]
diff --git a/example/Jamfile.v2 b/example/Jamfile.v2
index 58d4b9a2..e74cf00a 100644
--- a/example/Jamfile.v2
+++ b/example/Jamfile.v2
@@ -24,7 +24,7 @@ rule regex-test-run ( sources + : input * )
 test-suite regex-examples :
 
 [ regex-test-run timer/regex_timer.cpp : $(BOOST_ROOT)/libs/regex/example/timer/input_script.txt ]
-[ regex-test-run jgrep/jgrep.cpp jgrep/main.cpp : -n boost/ $(BOOST_ROOT)/boost/regex.hpp ]
+[ regex-test-run grep/grep.cpp ../../program_options/build//program_options : -n -b $(BOOST_ROOT)/boost/regex.hpp $(BOOST_ROOT)/boost/type_traits.hpp ]
 [ regex-test-run snippets/credit_card_example.cpp ]
 [ regex-test-run snippets/mfc_example.cpp ]
 [ regex-test-run snippets/icu_example.cpp ]
diff --git a/example/grep/grep.cpp b/example/grep/grep.cpp
new file mode 100644
index 00000000..05e4200c
--- /dev/null
+++ b/example/grep/grep.cpp
@@ -0,0 +1,212 @@
+/*
+ *
+ * Copyright (c) 2004
+ * Dr 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 <iostream>
+#include <fstream>
+#include <string>
+#include <vector>
+#include <boost/program_options.hpp>
+#include <boost/regex.hpp>
+
+namespace po = boost::program_options;
+
+int after_context;
+int before_context;
+bool print_byte_offset;
+bool count_only;
+std::string pattern;
+bool print_non_matching_files;
+bool files_only;
+bool print_line_numbers;
+
+boost::regex_constants::syntax_option_type flags = boost::regex_constants::basic;
+boost::regex re;
+boost::smatch what;
+std::string current_file;
+int file_count;
+
+void process_stream(std::istream& is)
+{
+   std::string line;
+   int match_found = 0;
+   int linenum = 1;
+   while(std::getline(is, line))
+   {
+      bool result = boost::regex_search(line, what, re);
+      if(result)
+      {
+         if(print_non_matching_files)
+            return;
+         if(files_only)
+         {
+            std::cout << current_file << std::endl;
+            return;
+         }
+         if(!match_found && !count_only && (file_count > 1))
+         {
+            std::cout << current_file << ":\n";
+         }
+         ++match_found;
+         if(!count_only)
+         {
+            if(print_line_numbers)
+            {
+               std::cout << linenum << ":";
+            }
+            if(print_byte_offset)
+            {
+               std::cout << what.position() << ":";
+            }
+            std::cout << what[0] << std::endl;
+         }
+      }
+      ++linenum;
+   }
+   if(count_only && match_found)
+   {
+      std::cout << match_found << " matches found in file " << current_file << std::endl;
+   }
+   else if(print_non_matching_files && !match_found)
+   {
+      std::cout << current_file << std::endl;
+   }
+}
+
+void process_file(const std::string& name)
+{
+   current_file = name;
+   std::ifstream is(name.c_str());
+   if(is.bad())
+   {
+      std::cerr << "Unable to open file " << name << std::endl;
+   }
+   process_stream(is);
+}
+
+int main(int argc, char * argv[])
+{
+   try{
+      po::options_description opts("Options");
+      opts.add_options()
+         ("help,h", "produce help message") 
+         //("after-context,A", po::value<int>(&after_context)->default_value(0), "Print arg  lines  of  trailing  context  after  matching  lines. Places  a  line  containing  --  between  contiguous  groups  of matches.")
+         //("before-context,B", po::value<int>(&before_context)->default_value(0), "Print  arg  lines  of  leading  context  before  matching lines. Places  a  line  containing  --  between  contiguous  groups  of matches.")
+         //("context,C", po::value<int>(), "Print  arg lines of output context.  Places a line containing -- between contiguous groups of matches.")
+         ("byte-offset,b", "Print the byte offset within the input file before each line  of output.")
+         ("count,c", "Suppress normal output; instead print a count of matching  lines for  each  input  file.  With the -v, --invert-match option (see below), count non-matching lines.")
+         ("extended-regexp,E", "Interpret PATTERN as an POSIX-extended regular expression.")
+         ("perl-regexp,P", "Interpret PATTERN as a Perl regular expression.")
+         //("regexp,e", po::value<std::string>(&pattern), "Use PATTERN as the pattern; useful to protect patterns beginning with -.")
+         ("basic-regexp,G", "Interpret arg as a POSIX-basic regular expression (see below).  This is the default.")
+         ("ignore-case,i", "Ignore case distinctions in  both  the  PATTERN  and  the  input files.")
+         ("files-without-match,L", "Suppress  normal  output;  instead  print the name of each input file from which no output would normally have been printed.  The scanning will stop on the first match.")
+         ("files-with-matches,l", "Suppress  normal  output;  instead  print the name of each input file from which output would normally have  been  printed.   The scanning will stop on the first match.")
+         ("line-number,n", "Prefix each line of output with the line number within its input file.")
+         ;
+      // Hidden options, will be allowed both on command line and
+      // in config file, but will not be shown to the user.
+      po::options_description hidden("Hidden options");
+      hidden.add_options()
+         ("input-file", po::value< std::vector<std::string> >(), "input file")
+         ("input-pattern", po::value< std::string >(), "input file")
+         ;
+
+      po::options_description cmdline_options;
+      cmdline_options.add(opts).add(hidden);
+
+      po::positional_options_description p;
+      p.add("input-pattern", 1);
+      p.add("input-file", -1);
+
+      po::variables_map vm;
+      store(po::command_line_parser(argc, argv).options(cmdline_options)/*.options(hidden)*/.positional(p).run(), vm);
+      notify(vm);
+
+      if (vm.count("help")) 
+      {
+         std::cout << opts << "\n";
+         return 0;
+      }
+      if (vm.count("context")) 
+      {
+         after_context = vm["context"].as< int >();
+         before_context = after_context;
+      }
+      if(vm.count("extended-regexp"))
+      {
+         flags = boost::regex_constants::extended;
+      }
+      if(vm.count("basic-regexp"))
+      {
+         flags = boost::regex_constants::basic;
+      }
+      if(vm.count("perl-regexp"))
+      {
+         flags = boost::regex_constants::perl;
+      }
+      if(vm.count("ignore-case"))
+      {
+         flags |= boost::regex_constants::icase;
+      }
+      if(vm.count("byte-offset"))
+      {
+         print_byte_offset = true;
+      }
+      if(vm.count("count"))
+      {
+         count_only = true;
+      }
+      if(vm.count("files-without-match"))
+      {
+         print_non_matching_files = true;
+      }
+      if(vm.count("files-with-matches"))
+      {
+         files_only = true;
+      }
+      if(vm.count("line-number"))
+      {
+         print_line_numbers = true;
+      }
+      if(vm.count("input-pattern"))
+      {
+         pattern = vm["input-pattern"].as< std::string >();
+         re.assign(pattern, flags);
+      }
+      else
+      {
+         std::cerr << "No pattern specified" << std::endl;
+         return 1;
+      }
+      if (vm.count("input-file"))
+      {
+         const std::vector<std::string>& files = vm["input-file"].as< std::vector<std::string> >();
+         file_count = files.size();
+         for(std::vector<std::string>::const_iterator i = files.begin(); i != files.end(); ++i)
+         {
+            process_file(*i);
+         }
+      }
+      else
+      {
+         // no input files, scan stdin instead:
+         process_stream(std::cin);
+      }
+
+   }
+   catch(const std::exception& e)
+   {
+      std::cerr << e.what() << std::endl;
+   }
+
+   return 0;
+}
+
diff --git a/example/jgrep/bc55.mak b/example/jgrep/bc55.mak
deleted file mode 100644
index c5c0e322..00000000
--- a/example/jgrep/bc55.mak
+++ /dev/null
@@ -1,51 +0,0 @@
-
-# very basic makefile for jgrep.exe
-#
-# Borland C++ tools
-#
-# BCROOT defines the root directory of your bc builder install
-#
-!ifndef BCROOT
-BCROOT=$(MAKEDIR)\..
-!endif
-
-BCC32   = $(BCROOT)\bin\Bcc32.exe
-LIBPATH=..\..\build\bcb5
-
-IDE_LinkFLAGS32 =  -L$(BCROOT)\LIB
-LINKOPTS= -ap -Tpe -x
-COMPOPTS= -O2 -tWM- -Vx -Ve -DSTRICT; -I$(BCROOT)\include;../../../../; -D_NO_VCL
-
-
-
-jgrep.exe : jgrep.obj main.obj
-  $(BCC32) $(COMPOPTS) -e$@  -L$(LIBPATH) main.obj jgrep.obj
-
-jgrep.obj :  jgrep.cpp
-  $(BCC32) -c @&&|
- $(COMPOPTS) -o$@ jgrep.cpp
-|
-
-main.obj :  main.cpp
-  $(BCC32) -c @&&|
- $(COMPOPTS) -o$@ main.cpp
-|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
diff --git a/example/jgrep/bcb4.mak b/example/jgrep/bcb4.mak
deleted file mode 100644
index d39af753..00000000
--- a/example/jgrep/bcb4.mak
+++ /dev/null
@@ -1,51 +0,0 @@
-
-# very basic makefile for jgrep.exe
-#
-# Borland C++ tools
-#
-# BCROOT defines the root directory of your bc builder install
-#
-!ifndef BCROOT
-BCROOT=$(MAKEDIR)\..
-!endif
-
-BCC32   = $(BCROOT)\bin\Bcc32.exe
-LIBPATH="..\..\build\bcb4"
-
-IDE_LinkFLAGS32 =  -L$(BCROOT)\LIB
-LINKOPTS= -ap -Tpe -x
-COMPOPTS= -O2 -tWM- -Vx -Ve -DSTRICT; -I$(BCROOT)\include;../../../../; -D_NO_VCL
-
-
-
-jgrep.exe : jgrep.obj main.obj
-  $(BCC32) @&&|
-$(COMPOPTS) -e$@  -L$(LIBPATH) main.obj jgrep.obj
-|
-
-jgrep.obj :  jgrep.cpp
-  $(BCC32) -c @&&|
- $(COMPOPTS) -o$@ jgrep.cpp
-|
-
-main.obj :  main.cpp
-  $(BCC32) -c @&&|
- $(COMPOPTS) -o$@ main.cpp
-|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
diff --git a/example/jgrep/bcb5.mak b/example/jgrep/bcb5.mak
deleted file mode 100644
index 1e1a15e9..00000000
--- a/example/jgrep/bcb5.mak
+++ /dev/null
@@ -1,50 +0,0 @@
-
-# very basic makefile for jgrep.exe
-#
-# Borland C++ tools
-#
-# BCROOT defines the root directory of your bc builder install
-#
-!ifndef BCROOT
-BCROOT=$(MAKEDIR)\..
-!endif
-
-BCC32   = $(BCROOT)\bin\Bcc32.exe
-LIBPATH=../../build/bcb5
-
-IDE_LinkFLAGS32 =  -L$(BCROOT)\LIB
-LINKOPTS= -ap -Tpe -x
-COMPOPTS= -O2 -tWM- -Vx -Ve -DSTRICT; -I$(BCROOT)\include;../../../../; -D_NO_VCL
-
-
-
-jgrep.exe : jgrep.obj main.obj
-  $(BCC32) $(COMPOPTS) -e$@  -L..\..\build\bcb5 main.obj jgrep.obj
-
-jgrep.obj :  jgrep.cpp
-  $(BCC32) -c @&&|
- $(COMPOPTS) -o$@ jgrep.cpp
-|
-
-main.obj :  main.cpp
-  $(BCC32) -c @&&|
- $(COMPOPTS) -o$@ main.cpp
-|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
diff --git a/example/jgrep/gcc.mak b/example/jgrep/gcc.mak
deleted file mode 100644
index efe068a4..00000000
--- a/example/jgrep/gcc.mak
+++ /dev/null
@@ -1,32 +0,0 @@
-
-# very basic makefile for jgrep
-#
-# GNU compiler g++
-#
-CXX= $(INCLUDES) -O2 -I../../../../ -I./ $(CXXFLAGS) $(LDFLAGS)
-
-jgrep : jgrep.cpp main.cpp
-	g++ -ojgrep $(CXX) jgrep.cpp main.cpp -L../../build/gcc -lboost_regex $(LIBS)
-
-debug : jgrep.cpp main.cpp
-	g++ -ojgrep -I../../../../ -I./ -g jgrep.cpp main.cpp -L../../build/gcc -lboost_regex_debug $(LIBS)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
diff --git a/example/jgrep/jgrep.cpp b/example/jgrep/jgrep.cpp
deleted file mode 100644
index 9acf48e4..00000000
--- a/example/jgrep/jgrep.cpp
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- *
- * Copyright (c) 1998-2002
- * Dr 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)
- *
- */
- 
- /*
-  *   FILE     jgrep.cpp
-  *   VERSION  see <boost/version.hpp>
-  */
-
-#include <stdio.h>
-#include <algorithm>
-#include <boost/regex.hpp>
-#ifdef JM_OLD_IOSTREAM
-#include <iostream.h>
-#else
-#include <iostream>
-using std::cout;
-using std::cin;
-using std::cerr;
-using std::endl;
-#endif
-#ifdef __BORLANDC__
-#  pragma hrdstop
-#endif
-
-#ifdef BOOST_REGEX_V3
-#include <boost/regex/v3/fileiter.hpp>
-#else
-#include <boost/regex/v4/fileiter.hpp>
-#endif
-
-#include "jgrep.h"
-#ifndef BOOST_REGEX_NO_FILEITER
-
-//
-// class ogrep_predicate
-// outputs the results of regex_grep to screen:
-template <class iterator, class Allocator >
-class ogrep_predicate
-{
-   unsigned int& lines;
-   const char* filename;
-   unsigned int last_line;
-   iterator end_of_storage, last_line_start;
-public:
-   ogrep_predicate(unsigned int& i, const char* p, iterator start, iterator end) : lines(i), filename(p), last_line(-1), end_of_storage(end), last_line_start(start) {}
-   ogrep_predicate(const ogrep_predicate& o) : lines(o.lines), filename(o.filename), last_line(o.last_line), end_of_storage(o.end_of_storage), last_line_start(o.last_line_start) {}
-   bool operator () (const boost::match_results<iterator, Allocator>& i);
-private:
-   void operator=(const ogrep_predicate&);
-};
-
-// ideally we'd ignor the allocator type and use a template member function
-// to deel with the allocator type passed to regex_grep, unfortunately most
-// compilers don't support this feature yet, so we'll have to be sure that
-// the allocator passed to instances of this class match that used in our
-// regular expression classes.
-
-template <class iterator, class Allocator>
-bool ogrep_predicate<iterator, Allocator>::operator()(const boost::match_results<iterator, Allocator>& i)
-{
-   // if we haven't printed the filename yet, then do it now:
-   if(last_line == (unsigned int)-1)
-   {
-      cout << "File " << filename << ":" << endl;
-      last_line = 0;
-   }
-   // calculate which line we are on, by adding the number of newlines 
-   // we've skipped in the last search:
-   unsigned int current_line = last_line + std::count(last_line_start, end_of_storage, '\n');
-   // if we haven't already printed this line out, then do it now:
-   if(last_line != current_line)
-   {
-      ++lines;
-      last_line = current_line;
-      if(count_only == 0)
-      {
-         if(show_lines)
-            cout << current_line << "\t";
-         const char* nls = "\n";
-         iterator ptr = std::find_end(last_line_start, i[0].first, nls, nls+1);
-         ++ptr;
-         iterator ptr2 = ptr;
-         while((ptr2 != end_of_storage) && (*ptr2 != '\n'))++ptr2;
-         while(ptr != ptr2)
-         {
-            cout.put(*ptr);
-            ++ptr;
-         }
-         cout << endl;
-      }
-   }
-   // set the last line seen to the start of the current match:
-   last_line_start = i[0].first;
-   return true;
-}
-
-using namespace boost;
-
-void process_grep(const char* file)
-{
-   try{
-   mapfile f(file);
-   unsigned int count = 0;
-   ogrep_predicate<mapfile::iterator, boost::match_results<mapfile::iterator>::allocator_type> oi(count, file, f.begin(), f.end());
-   if(files_only)
-   {
-      bool ok;
-      boost::match_results<mapfile::iterator> m;
-         ok = regex_search(f.begin(), f.end(), m, e, match_not_dot_newline | match_not_dot_null);
-      if(ok)
-         cout << "File " << file << endl;
-   }
-   else
-   {
-      regex_grep(oi, f.begin(), f.end(), e, match_not_dot_newline | match_not_dot_null);
-      if(count)
-      {
-         if(verbose || count_only)
-         {
-            cout << count << " lines match" << endl;
-            return;
-         }
-      }
-      else if(verbose)
-      {
-         cout << "File " << file << "(" << f.size() << "bytes):" << endl << "0 lines match" << endl;
-      }
-   }
-   }
-   catch(const std::exception& e)
-   {
-      std::cerr << std::endl << e.what() << std::endl;
-   }
-   catch(...)
-   {
-   }
-}
-
-#endif
-
diff --git a/example/jgrep/jgrep.h b/example/jgrep/jgrep.h
deleted file mode 100644
index c9e6ac3b..00000000
--- a/example/jgrep/jgrep.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- *
- * Copyright (c) 1998-2000
- * Dr 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)
- *
- */
- 
- /*
-  *   FILE     jgrep.h
-  *   VERSION  see <boost/version.hpp>
-  */
-
-#ifndef _JGREP_H
-#define _JGREP_H
-
-#include <boost/regex.hpp>
-
-typedef boost::basic_regex<char> re_type;
-extern re_type e;
-
-// flags for output:
-
-extern bool use_case;
-extern bool show_lines;
-extern bool count_only;
-extern bool files_only;
-extern bool recurse;
-extern bool regularexs;
-extern bool words_only;
-extern bool verbose;
-
-void process_grep(const char* file);
-
-#endif
-
-
-
-
diff --git a/example/jgrep/main.cpp b/example/jgrep/main.cpp
deleted file mode 100644
index d3e6cb6a..00000000
--- a/example/jgrep/main.cpp
+++ /dev/null
@@ -1,289 +0,0 @@
-/*
- *
- * Copyright (c) 1998-2002
- * Dr 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)
- *
- */
- 
- /*
-  *   FILE     main.cpp
-  *   VERSION  see <boost/version.hpp>
-  */
-
-
-#include <cstdio>
-#include <cstdlib>
-#include <iostream>
-#include <algorithm>
-
-#include <boost/regex.hpp>
-#include <boost/regex/v4/fileiter.hpp>
-#include "jgrep.h"
-#ifndef BOOST_REGEX_NO_FILEITER
-
-#ifdef BOOST_NO_STDC_NAMESPACE
-namespace std{
-   using ::strcpy;
-   using ::strcat;
-   using ::sprintf;
-}
-#endif
-
-
-re_type e;
-//rei_type ei(a);
-
-// flags for output:
-
-bool use_case = true;
-bool show_lines = false;
-bool count_only = false;
-bool files_only = false;
-bool recurse = false;
-bool regularexs = true;
-bool words_only = false;
-bool verbose = false;
-
-
-void usage()
-{
-   std::cout <<
-"jgrep version 0.95\n"
-"usage: jgrep [-options] expression file [files...]\n"
-"\n"
-"options can be one of the following:\n"
-"\n"
-"-c   prints a count of the number of matching lines only\n"
-"-d   recurses through subdirectories for matching files\n"
-"-i   causes case to be ignored when matching\n"
-"-l   lists the files which contain a match only\n"
-"-n   displays the line numbers of matches\n"
-"-r-  causes the expression to be interpreted as a literal string and not\n"
-"     as a regular expression\n"
-"-w   searches for matches that are whole words only\n"
-"-z   verbose mode\n"
-"\n"
-"expression: a regular expression, or a literal string if -r- is specified\n"
-"\n"
-"files:  one or more files to search, the names can contain the wildcard\n"
-"        characters ? and *\n" << std::endl;
-
-}
-
-void parse_switch(const char* flag)
-{
-   ++flag;
-   while(*flag)
-   {
-      switch(*flag)
-      {
-         case '-':
-            switch(*(flag-1))
-            {
-               case 'c':
-                  count_only = false;
-                  break;
-               case 'd':
-                  recurse = false;
-                  break;
-               case 'i':
-                  use_case = false;
-                  break;
-               case 'l':
-                  files_only = false;
-                  break;
-               case 'n':
-                  show_lines = false;
-                  break;
-               case 'r':
-                  regularexs = false;
-                  break;
-               case 'w':
-                  words_only = false;
-                  break;
-               case 'z':
-                  verbose = false;
-                  break;
-               default:
-                  std::cout << "Undefined option -";
-                  std::cout.put(*flag);
-                  std::cout << std::endl;
-            }
-            // turn off prev character:
-            break;
-         case 'c':
-            count_only = true;
-            break;
-         case 'd':
-            recurse = true;
-            break;
-         case 'i':
-            use_case = false;
-            break;
-         case 'l':
-            files_only = true;
-            break;
-         case 'n':
-            show_lines = true;
-            break;
-         case 'r':
-            regularexs = true;
-            break;
-         case 'w':
-            words_only = true;
-            break;
-         case 'z':
-            verbose = true;
-            break;
-         case '?':
-            usage();
-            exit(0);
-         case '+':
-            break;
-         default:
-            std::cout << "Undefined option -";
-            std::cout.put(*flag);
-            std::cout << std::endl;
-      }
-      ++flag;
-   }
-}
-
-using namespace boost;
-
-void HandleFile(const char* wild)
-{
-   using namespace boost;
-   file_iterator end;
-   file_iterator start(wild);
-
-   if(recurse)
-   {
-      // go through sub directories:
-      char buf[MAX_PATH];
-      std::strcpy(buf, start.root());
-      int rootlen = strlen(buf);
-      if(*buf == 0)
-      {
-         std::strcpy(buf, ".");
-         std::strcat(buf, directory_iterator::separator());
-         std::strcat(buf, "*");
-      }
-      else
-      {
-         std::strcat(buf, directory_iterator::separator());
-         std::strcat(buf, "*");
-      }
-      directory_iterator dstart(buf);
-      directory_iterator dend;
-
-      // now get the file mask bit of "wild":
-      const char* ptr = wild + rootlen;
-      if(*ptr) ++ptr;
-
-      while(dstart != dend)
-      {
-         std::sprintf(buf, "%s%s%s", dstart.path(), directory_iterator::separator(), ptr);
-         HandleFile(buf);
-         ++dstart;
-      }
-   }
-   std::for_each(start, end, process_grep);
-}
-
-int done = 0;
-
-void HandleArg(const char* arg)
-{
-   using namespace boost;
-   if(*arg == '-')
-   {
-      parse_switch(arg);
-      return;
-   }
-   if(done == 0)
-   {
-      // parse regular expression
-      if(regularexs)
-      {
-         if(words_only == 0)
-         {
-            e.set_expression(arg, use_case ? regex::normal : regbase::normal | regbase::icase);
-            //ei.set_expression(arg);
-         }
-         else
-         {
-            char* buf = new char[std::strlen(arg) + 8];
-            std::sprintf(buf, "\\<%s\\>", arg);
-            e.set_expression(buf, use_case ? regex::normal : regbase::normal | regbase::icase);
-            //ei.set_expression(buf);
-            delete[] buf;
-         }
-      }
-      else
-      {
-         // we need to convert text to literal:
-         int len2 = std::strlen(arg);
-         int len = len2 * 5 + 6;
-         char buf[8];
-         char* buf2 = new char[len];
-         *buf2 = 0;
-         if(words_only)
-            std::strcpy(buf2, "\\<");
-         for(int j = 0; j < len2; ++j)
-         {
-            std::sprintf(buf, "\\0%o", int(arg[j]));
-            std::strcat(buf2, buf);
-         }
-         if(words_only)
-            std::strcat(buf2, "\\>");
-         e.set_expression(buf2, use_case ? regex::normal : regbase::normal | regbase::icase);
-         //ei.set_expression(buf2);
-         delete[] buf2;
-      }
-      done = 1;
-      return;
-   }
-   // if we get to here we have one or more file names to process:
-   ++done;
-   HandleFile(arg);
-}
-
-int main(int argc, char * argv[])
-{
-   for(int i = 1; i < argc; ++i)
-      HandleArg(argv[i]);
-   if(done < 2)
-      usage();
-   return 0;
-}
-
-#else
-
-#include <iostream>
-
-int main(int argc, char * argv[])
-{
-   std::std::cout <<
-   "\n<note>\n"
-   "This functionality is not available on with this compiler on this platform.\n"
-   "</note>\n";
-   return 0;
-}
-
-#endif
-
-
-
-
-
-
-
-
-
-
-
diff --git a/example/jgrep/vc6-stlport.mak b/example/jgrep/vc6-stlport.mak
deleted file mode 100644
index a5152cf5..00000000
--- a/example/jgrep/vc6-stlport.mak
+++ /dev/null
@@ -1,18 +0,0 @@
-
-#
-# very simple makefile for Visual C++ 6 + STLPort 4
-#
-
-jgrep.exe: main.cpp jgrep.cpp jgrep.h
-	cl -GX -GR /Oityb1 /GF /Gy -MT -I..\..\..\..\ jgrep.cpp main.cpp /link /LIBPATH:..\..\build\vc6-stlport user32.lib
-
-
-
-
-
-
-
-
-
-
-
diff --git a/example/jgrep/vc6.mak b/example/jgrep/vc6.mak
deleted file mode 100644
index a3baadd4..00000000
--- a/example/jgrep/vc6.mak
+++ /dev/null
@@ -1,18 +0,0 @@
-
-#
-# very simple makefile for Visual C++ 6
-#
-
-jgrep.exe: main.cpp jgrep.cpp jgrep.h
-	cl -GX -GR /Oityb1 /GF /Gy -I..\..\..\..\ jgrep.cpp main.cpp /link /LIBPATH:..\..\build\vc6
-
-
-
-
-
-
-
-
-
-
-
diff --git a/src/instances.cpp b/src/instances.cpp
index 6ff3e96d..06dd3b68 100644
--- a/src/instances.cpp
+++ b/src/instances.cpp
@@ -30,4 +30,3 @@
 #include <boost/regex.hpp>
 
 #endif
-
diff --git a/src/winstances.cpp b/src/winstances.cpp
index 34e71a00..d9957578 100644
--- a/src/winstances.cpp
+++ b/src/winstances.cpp
@@ -31,3 +31,5 @@
 
 #endif
 
+
+
diff --git a/test/regress/test_sets.cpp b/test/regress/test_sets.cpp
index 41b5d887..65cc82bc 100644
--- a/test/regress/test_sets.cpp
+++ b/test/regress/test_sets.cpp
@@ -138,6 +138,8 @@ void test_sets()
 }
 
 void test_sets2b();
+void test_sets2c();
+
 void test_sets2()
 {
    using namespace boost::regex_constants;
@@ -245,7 +247,12 @@ void test_sets2()
    TEST_REGEX_SEARCH("[\\s]+", perl, "AB   AB", match_default, make_array(2, 5, -2, -2));
    TEST_INVALID_REGEX("[\\S]", perl);
    TEST_REGEX_SEARCH("\\S+", perl, "  abc  ", match_default, make_array(2, 5, -2, -2));
+   test_sets2c();
+}
 
+void test_sets2c()
+{
+   using namespace boost::regex_constants;
    // and some Perl style properties:
    TEST_REGEX_SEARCH("\\pl+", perl, "ABabcAB", match_default, make_array(2, 5, -2, -2));
    TEST_REGEX_SEARCH("\\Pl+", perl, "abABCab", match_default, make_array(2, 5, -2, -2));