// (C) Copyright Eric Niebler 2006.
// Distributed under 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 <iomanip>
#include <fstream>
#include <deque>
#include <sstream>
#include <stdexcept>
#include <iterator>
#include "./regex_comparison.hpp"
//
// globals:
//
bool time_boost = false;
bool time_greta = false;
bool time_safe_greta = false;
bool time_dynamic_xpressive = false;
bool time_static_xpressive = false;
//bool time_posix = false;
//bool time_pcre = false;
bool test_matches = false;
bool test_short_twain = false;
bool test_long_twain = false;
std::string xml_out_file;
std::string xml_contents;
std::list<results> result_list;
int handle_argument(const std::string& what)
{
if(what == "-b")
time_boost = true;
else if(what == "-g")
time_greta = true;
else if(what == "-gs")
time_safe_greta = true;
else if(what == "-dx")
time_dynamic_xpressive = true;
else if(what == "-sx")
time_static_xpressive = true;
//else if(what == "-posix")
// time_posix = true;
//else if(what == "-pcre")
// time_pcre = true;
else if(what == "-all")
{
time_boost = true;
time_greta = true;
time_safe_greta = true;
time_dynamic_xpressive = true;
time_static_xpressive = true;
//time_posix = true;
//time_pcre = true;
}
else if(what == "-test-matches")
test_matches = true;
else if(what == "-test-short-twain")
test_short_twain = true;
else if(what == "-test-long-twain")
test_long_twain = true;
else if(what == "-test-all")
{
test_matches = true;
test_short_twain = true;
test_long_twain = true;
}
else if((what == "-h") || (what == "--help"))
return show_usage();
else if((what[0] == '-') || (what[0] == '/'))
{
std::cerr << "Unknown argument: \"" << what << "\"" << std::endl;
return 1;
}
else if(xml_out_file.size() == 0)
{
xml_out_file = what;
}
else
{
std::cerr << "Unexpected argument: \"" << what << "\"" << std::endl;
return 1;
}
return 0;
}
int show_usage()
{
std::cout <<
"Usage\n"
"xprperf [-h] [library options] [test options] [xml_output_file]\n"
" -h Show help\n\n"
" library options:\n"
" -b Apply tests to boost library\n"
//" -ba Apply tests to boost library with a custom allocator\n"
//" -be Apply tests to experimental boost library\n"
//" -g Apply tests to GRETA library\n"
//" -gs Apply tests to GRETA library (in non-recursive mode)\n"
" -dx Apply tests to dynamic xpressive library\n"
" -sx Apply tests to static xpressive library\n"
//" -posix Apply tests to POSIX library\n"
//" -pcre Apply tests to PCRE library\n"
" -all Apply tests to all libraries\n\n"
" test options:\n"
" -test-matches Test short matches\n"
" -test-short-twain Test short searches\n"
" -test-long-twain Test long searches\n"
" -test-all Test everthing\n";
return 1;
}
void load_file(std::string& text, const char* file)
{
std::deque<char> temp_copy;
std::ifstream is(file);
if(!is.good())
{
std::string msg("Unable to open file: \"");
msg.append(file);
msg.append("\"");
throw std::runtime_error(msg);
}
std::istreambuf_iterator<char> it(is);
std::copy(it, std::istreambuf_iterator<char>(), std::back_inserter(temp_copy));
text.erase();
text.reserve(temp_copy.size());
text.append(temp_copy.begin(), temp_copy.end());
}
struct xml_double
{
double d_;
xml_double( double d ) : d_(d) {}
friend std::ostream & operator<<( std::ostream & out, xml_double const & xd )
{
std::ostringstream tmp;
tmp << std::setprecision(out.precision()) << xd.d_;
std::string str = tmp.str();
std::string::size_type i = str.find( '-' );
if( i != std::string::npos )
str.replace( i, 1, "‑" );
return out << str;
}
};
void print_result(std::ostream& os, double time, double best)
{
static const char* suffixes[] = {"s", "ms", "us", "ns", "ps", };
if(time < 0)
{
os << "<entry>NA</entry>";
return;
}
double rel = time / best;
bool highlight = ((rel > 0) && (rel < 1.1));
unsigned suffix = 0;
while(time < 0)
{
time *= 1000;
++suffix;
}
os << "<entry>";
if(highlight)
os << "<phrase role=\"highlight\">";
if(rel <= 1000)
os << std::setprecision(3) << xml_double(rel);
else
os << (int)rel;
os << "<para/>(";
if(time <= 1000)
os << std::setprecision(3) << xml_double(time);
else
os << (int)time;
os << suffixes[suffix] << ")";
if(highlight)
os << "</phrase>";
os << "</entry>";
}
void output_xml_results(bool show_description, const std::string& title, const std::string& filename)
{
std::stringstream os;
// Generate the copyright and license on the output file
os << "<!--\n"
" Copyright 2004 Eric Niebler.\n"
"\n"
" Distributed under the Boost Software License, Version 1.0.\n"
" (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)\n"
"-->\n";
if(result_list.size())
{
// calculate the number of columns in this table
int num_cols = 1 + show_description + time_greta + time_safe_greta
+ time_dynamic_xpressive + time_static_xpressive + time_boost;
//
// start by outputting the table header:
//
os << "<informaltable frame=\"all\">\n";
os << "<bridgehead renderas=\"sect4\">"
"<phrase role=\"table-title\">" << title << "</phrase>"
"</bridgehead>\n";
os << "<tgroup cols=\"" << num_cols << "\">\n";
os << "<thead>\n";
os << "<row>\n";
if(time_static_xpressive) os << "<entry>static xpressive</entry>";
if(time_dynamic_xpressive) os << "<entry>dynamic xpressive</entry>";
if(time_greta) os << "<entry>GRETA</entry>";
if(time_safe_greta) os << "<entry>GRETA<para/>(non-recursive mode)</entry>";
if(time_boost) os << "<entry>Boost</entry>";
//if(time_posix) os << "<entry>POSIX</entry>";
//if(time_pcre) os << "<entry>PCRE</entry>";
if(show_description) os << "<entry>Text</entry>";
os << "<entry>Expression</entry>";
os << "\n</row>\n";
os << "</thead>\n";
os << "<tbody>\n";
//
// Now enumerate through all the test results:
//
std::list<results>::const_iterator first, last;
first = result_list.begin();
last = result_list.end();
while(first != last)
{
os << "<row>\n";
if(time_static_xpressive) print_result(os, first->static_xpressive_time, first->factor);
if(time_dynamic_xpressive) print_result(os, first->dynamic_xpressive_time, first->factor);
if(time_greta) print_result(os, first->greta_time, first->factor);
if(time_safe_greta) print_result(os, first->safe_greta_time, first->factor);
if(time_boost) print_result(os, first->boost_time, first->factor);
//if(time_posix) print_result(os, first->posix_time, first->factor);
//if(time_pcre) print_result(os, first->pcre_time, first->factor);
if(show_description) os << "<entry>" << first->description << "</entry>";
os << "<entry><literal>" << first->expression << "</literal></entry>";
os << "\n</row>\n";
++first;
}
os << "</tbody>\n"
"</tgroup>\n"
"</informaltable>\n";
result_list.clear();
}
else
{
os << "<para><emphasis>Results not available...</emphasis></para>\n";
}
std::ofstream file(filename.c_str());
file << os.str();
}
