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/*
*
* Copyright (c) 2002-2003
* 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 <iomanip>
#include <fstream>
#include <deque>
#include <sstream>
#include <stdexcept>
#include <iterator>
#include <boost/regex.hpp>
#include <boost/version.hpp>
#include "regex_comparison.hpp"
#ifdef BOOST_HAS_PCRE
#include "pcre.h" // for pcre version number
#endif
//
// globals:
//
bool time_boost = false;
bool time_localised_boost = false;
bool time_greta = false;
bool time_safe_greta = false;
bool time_posix = false;
bool time_pcre = false;
bool time_xpressive = false;
bool time_std = false;
bool test_matches = false;
bool test_code = false;
bool test_html = false;
bool test_short_twain = false;
bool test_long_twain = false;
std::string html_template_file;
std::string html_out_file;
std::string html_contents;
std::list<results> result_list;
// the following let us compute averages:
double greta_total = 0;
double safe_greta_total = 0;
double boost_total = 0;
double locale_boost_total = 0;
double posix_total = 0;
double pcre_total = 0;
double xpressive_total = 0;
double std_total = 0;
unsigned greta_test_count = 0;
unsigned safe_greta_test_count = 0;
unsigned boost_test_count = 0;
unsigned locale_boost_test_count = 0;
unsigned posix_test_count = 0;
unsigned pcre_test_count = 0;
unsigned xpressive_test_count = 0;
unsigned std_test_count = 0;
int handle_argument(const std::string& what)
{
if(what == "-b")
time_boost = true;
else if(what == "-bl")
time_localised_boost = true;
#ifdef BOOST_HAS_GRETA
else if(what == "-g")
time_greta = true;
else if(what == "-gs")
time_safe_greta = true;
#endif
#ifdef BOOST_HAS_POSIX
else if(what == "-posix")
time_posix = true;
#endif
#ifdef BOOST_HAS_PCRE
else if(what == "-pcre")
time_pcre = true;
#endif
#ifdef BOOST_HAS_XPRESSIVE
else if(what == "-xpressive" || what == "-dxpr")
time_xpressive = true;
#endif
#ifndef BOOST_NO_0X_HDR_REGEX
else if(what == "-std")
time_std = true;
#endif
else if(what == "-all")
{
time_boost = true;
time_localised_boost = true;
#ifdef BOOST_HAS_GRETA
time_greta = true;
time_safe_greta = true;
#endif
#ifdef BOOST_HAS_POSIX
time_posix = true;
#endif
#ifdef BOOST_HAS_PCRE
time_pcre = true;
#endif
#ifdef BOOST_HAS_XPRESSIVE
time_xpressive = true;
#endif
#ifndef BOOST_NO_0X_HDR_REGEX
time_std = true;
#endif
}
else if(what == "-test-matches")
test_matches = true;
else if(what == "-test-code")
test_code = true;
else if(what == "-test-html")
test_html = 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_code = true;
test_html = 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(html_template_file.size() == 0)
{
html_template_file = what;
load_file(html_contents, what.c_str());
}
else if(html_out_file.size() == 0)
html_out_file = what;
else
{
std::cerr << "Unexpected argument: \"" << what << "\"" << std::endl;
return 1;
}
return 0;
}
int show_usage()
{
std::cout <<
"Usage\n"
"regex_comparison [-h] [library options] [test options] [html_template html_output_file]\n"
" -h Show help\n\n"
" library options:\n"
" -b Apply tests to boost library\n"
" -bl Apply tests to boost library with C++ locale\n"
#ifdef BOOST_HAS_GRETA
" -g Apply tests to GRETA library\n"
" -gs Apply tests to GRETA library (in non-recursive mode)\n"
#endif
#ifdef BOOST_HAS_POSIX
" -posix Apply tests to POSIX library\n"
#endif
#ifdef BOOST_HAS_PCRE
" -pcre Apply tests to PCRE library\n"
#endif
#ifdef BOOST_HAS_XPRESSIVE
" -dxpr Apply tests to dynamic xpressive library\n"
#endif
#ifndef BOOST_NO_0X_HDR_REGEX
" -std Apply tests to std::regex.\n"
#endif
" -all Apply tests to all libraries\n\n"
" test options:\n"
" -test-matches Test short matches\n"
" -test-code Test c++ code examples\n"
" -test-html Test c++ code examples\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);
}
is.seekg(0, std::ios_base::end);
std::istream::pos_type pos = is.tellg();
is.seekg(0, std::ios_base::beg);
text.erase();
text.reserve(pos);
std::istreambuf_iterator<char> it(is);
std::copy(it, std::istreambuf_iterator<char>(), std::back_inserter(text));
}
void print_result(std::ostream& os, double time, double best)
{
static const char* suffixes[] = {"s", "ms", "us", "ns", "ps", };
if(time < 0)
{
os << "<td>NA</td>";
return;
}
double rel = time / best;
bool highlight = ((rel > 0) && (rel < 1.1));
unsigned suffix = 0;
while(time < 0)
{
time *= 1000;
++suffix;
}
os << "<td>";
if(highlight)
os << "<font color=\"#008000\">";
if(rel <= 1000)
os << std::setprecision(3) << rel;
else
os << (int)rel;
os << "<BR>(";
if(time <= 1000)
os << std::setprecision(3) << time;
else
os << (int)time;
os << suffixes[suffix] << ")";
if(highlight)
os << "</font>";
os << "</td>";
}
std::string html_quote(const std::string& in)
{
static const boost::regex e("(<)|(>)|(&)|(\")");
static const std::string format("(?1&lt;)(?2&gt;)(?3&amp;)(?4&quot;)");
return regex_replace(in, e, format, boost::match_default | boost::format_all);
}
void output_html_results(bool show_description, const std::string& tagname)
{
std::stringstream os;
if(result_list.size())
{
//
// start by outputting the table header:
//
os << "<table border=\"1\" cellspacing=\"1\">\n";
os << "<tr><td><strong>Expression</strong></td>";
if(show_description)
os << "<td><strong>Text</strong></td>";
#if defined(BOOST_HAS_GRETA)
if(time_greta == true)
os << "<td><strong>GRETA</strong></td>";
if(time_safe_greta == true)
os << "<td><strong>GRETA<BR>(non-recursive mode)</strong></td>";
#endif
if(time_boost == true)
os << "<td><strong>Boost</strong></td>";
if(time_localised_boost == true)
os << "<td><strong>Boost + C++ locale</strong></td>";
#if defined(BOOST_HAS_POSIX)
if(time_posix == true)
os << "<td><strong>POSIX</strong></td>";
#endif
#ifdef BOOST_HAS_PCRE
if(time_pcre == true)
os << "<td><strong>PCRE</strong></td>";
#endif
#ifdef BOOST_HAS_XPRESSIVE
if(time_xpressive == true)
os << "<td><strong>Dynamic Xpressive</strong></td>";
#endif
#ifndef BOOST_NO_0X_HDR_REGEX
if(time_std == true)
os << "<td><strong>std::regex</strong></td>";
#endif
os << "</tr>\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 << "<tr><td><code>" << html_quote(first->expression) << "</code></td>";
if(show_description)
os << "<td>" << html_quote(first->description) << "</td>";
#if defined(BOOST_HAS_GRETA)
if(time_greta == true)
{
print_result(os, first->greta_time, first->factor);
if(first->greta_time > 0)
{
greta_total += first->greta_time / first->factor;
++greta_test_count;
}
}
if(time_safe_greta == true)
{
print_result(os, first->safe_greta_time, first->factor);
if(first->safe_greta_time > 0)
{
safe_greta_total += first->safe_greta_time / first->factor;
++safe_greta_test_count;
}
}
#endif
if(time_boost == true)
{
print_result(os, first->boost_time, first->factor);
if(first->boost_time > 0)
{
boost_total += first->boost_time / first->factor;
++boost_test_count;
}
}
if(time_localised_boost == true)
{
print_result(os, first->localised_boost_time, first->factor);
if(first->localised_boost_time > 0)
{
locale_boost_total += first->localised_boost_time / first->factor;
++locale_boost_test_count;
}
}
if(time_posix == true)
{
print_result(os, first->posix_time, first->factor);
if(first->posix_time > 0)
{
posix_total += first->posix_time / first->factor;
++posix_test_count;
}
}
#if defined(BOOST_HAS_PCRE)
if(time_pcre == true)
{
print_result(os, first->pcre_time, first->factor);
if(first->pcre_time > 0)
{
pcre_total += first->pcre_time / first->factor;
++pcre_test_count;
}
}
#endif
#if defined(BOOST_HAS_XPRESSIVE)
if(time_xpressive == true)
{
print_result(os, first->xpressive_time, first->factor);
if(first->xpressive_time > 0)
{
xpressive_total += first->xpressive_time / first->factor;
++xpressive_test_count;
}
}
#endif
#ifndef BOOST_NO_0X_HDR_REGEX
if(time_std == true)
{
print_result(os, first->std_time, first->factor);
if(first->std_time > 0)
{
std_total += first->std_time / first->factor;
++std_test_count;
}
}
#endif
os << "</tr>\n";
++first;
}
os << "</table>\n";
result_list.clear();
}
else
{
os << "<P><I>Results not available...</I></P>\n";
}
std::string result = os.str();
std::string::size_type pos = html_contents.find(tagname);
if(pos != std::string::npos)
{
html_contents.replace(pos, tagname.size(), result);
}
}
std::string get_boost_version()
{
std::stringstream os;
os << (BOOST_VERSION / 100000) << '.' << ((BOOST_VERSION / 100) % 1000) << '.' << (BOOST_VERSION % 100);
return os.str();
}
std::string get_averages_table()
{
std::stringstream os;
//
// start by outputting the table header:
//
os << "<table border=\"1\" cellspacing=\"1\">\n";
os << "<tr>";
#if defined(BOOST_HAS_GRETA)
if(time_greta == true)
{
os << "<td><strong>GRETA</strong></td>";
}
if(time_safe_greta == true)
{
os << "<td><strong>GRETA<BR>(non-recursive mode)</strong></td>";
}
#endif
if(time_boost == true)
{
os << "<td><strong>Boost</strong></td>";
}
if(time_localised_boost == true)
{
os << "<td><strong>Boost + C++ locale</strong></td>";
}
#if defined(BOOST_HAS_POSIX)
if(time_posix == true)
{
os << "<td><strong>POSIX</strong></td>";
}
#endif
#ifdef BOOST_HAS_PCRE
if(time_pcre == true)
{
os << "<td><strong>PCRE</strong></td>";
}
#endif
#ifdef BOOST_HAS_XPRESSIVE
if(time_xpressive == true)
{
os << "<td><strong>Dynamic Xpressive</strong></td>";
}
#endif
#ifndef BOOST_NO_0X_HDR_REGEX
if(time_std == true)
{
os << "<td><strong>std::regex</strong></td>";
}
#endif
os << "</tr>\n";
//
// Now enumerate through all averages:
//
os << "<tr>";
#if defined(BOOST_HAS_GRETA)
if(time_greta == true)
os << "<td>" << (greta_total / greta_test_count) << "</td>\n";
if(time_safe_greta == true)
os << "<td>" << (safe_greta_total / safe_greta_test_count) << "</td>\n";
#endif
#if defined(BOOST_HAS_POSIX)
if(time_boost == true)
os << "<td>" << (boost_total / boost_test_count) << "</td>\n";
#endif
if(time_boost == true)
os << "<td>" << (boost_total / boost_test_count) << "</td>\n";
if(time_localised_boost == true)
os << "<td>" << (locale_boost_total / locale_boost_test_count) << "</td>\n";
if(time_posix == true)
os << "<td>" << (posix_total / posix_test_count) << "</td>\n";
#if defined(BOOST_HAS_PCRE)
if(time_pcre == true)
os << "<td>" << (pcre_total / pcre_test_count) << "</td>\n";
#endif
#if defined(BOOST_HAS_XPRESSIVE)
if(time_xpressive == true)
os << "<td>" << (xpressive_total / xpressive_test_count) << "</td>\n";
#endif
#ifndef BOOST_NO_0X_HDR_REGEX
if(time_std == true)
os << "<td>" << (std_total / std_test_count) << "</td>\n";
#endif
os << "</tr>\n";
os << "</table>\n";
return os.str();
}
void output_final_html()
{
if(html_out_file.size())
{
//
// start with search and replace ops:
//
std::string::size_type pos;
pos = html_contents.find("%compiler%");
if(pos != std::string::npos)
{
html_contents.replace(pos, 10, BOOST_COMPILER);
}
pos = html_contents.find("%library%");
if(pos != std::string::npos)
{
html_contents.replace(pos, 9, BOOST_STDLIB);
}
pos = html_contents.find("%os%");
if(pos != std::string::npos)
{
html_contents.replace(pos, 4, BOOST_PLATFORM);
}
pos = html_contents.find("%boost%");
if(pos != std::string::npos)
{
html_contents.replace(pos, 7, get_boost_version());
}
pos = html_contents.find("%pcre%");
if(pos != std::string::npos)
{
#ifdef PCRE_MINOR
html_contents.replace(pos, 6, BOOST_STRINGIZE(PCRE_MAJOR.PCRE_MINOR));
#else
html_contents.replace(pos, 6, "N/A");
#endif
}
pos = html_contents.find("%averages%");
if(pos != std::string::npos)
{
html_contents.replace(pos, 10, get_averages_table());
}
//
// now right the output to file:
//
std::ofstream os(html_out_file.c_str());
os << html_contents;
}
else
{
std::cout << html_contents;
}
}