Initial import from SVN

2014-03-09 10:58:52 +01:00
commit b6abce0c2f
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+// Copyright (c) 2006, 2007 Julio M. Merino Vidal
+// Copyright (c) 2008 Ilya Sokolov, Boris Schaeling
+// Copyright (c) 2009 Boris Schaeling
+// Copyright (c) 2010 Felipe Tanus, Boris Schaeling
+// Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling
+//
+// 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)
+
+#ifndef BOOST_PROCESS_WINDOWS_SEARCH_PATH_HPP
+#define BOOST_PROCESS_WINDOWS_SEARCH_PATH_HPP
+
+#include <boost/process/config.hpp>
+#include <boost/filesystem.hpp>
+#include <boost/tokenizer.hpp>
+#include <boost/array.hpp>
+#include <boost/system/error_code.hpp>
+#include <string>
+#include <stdexcept>
+#include <stdlib.h>
+#include <Shellapi.h>
+
+namespace boost { namespace process { namespace windows {
+
+#if defined(_UNICODE) || defined(UNICODE)
+inline std::wstring search_path(const std::wstring &filename,
+    std::wstring path = L"")
+{
+    if (path.empty())
+    {
+        path = ::_wgetenv(L"PATH");
+        if (path.empty())
+            BOOST_PROCESS_THROW(std::runtime_error(
+                "Environment variable PATH not found"));
+    }
+
+    typedef boost::tokenizer<boost::char_separator<wchar_t>,
+        std::wstring::const_iterator, std::wstring> tokenizer;
+    boost::char_separator<wchar_t> sep(L";");
+    tokenizer tok(path, sep);
+    for (tokenizer::iterator it = tok.begin(); it != tok.end(); ++it)
+    {
+        boost::filesystem::path p = *it;
+        p /= filename;
+        boost::array<std::wstring, 4> extensions =
+            { L"", L".exe", L".com", L".bat" };
+        for (boost::array<std::wstring, 4>::iterator it2 = extensions.begin();
+            it2 != extensions.end(); ++it2)
+        {
+            boost::filesystem::path p2 = p;
+            p2 += *it2;
+            boost::system::error_code ec;
+            bool file = boost::filesystem::is_regular_file(p2, ec);
+            if (!ec && file &&
+                SHGetFileInfoW(p2.c_str(), 0, 0, 0, SHGFI_EXETYPE))
+            {
+                return p2.wstring();
+            }
+        }
+    }
+    return L"";
+}
+#else
+inline std::string search_path(const std::string &filename,
+    std::string path = "")
+{
+    if (path.empty())
+    {
+        path = ::getenv("PATH");
+        if (path.empty())
+            BOOST_PROCESS_THROW(std::runtime_error(
+                "Environment variable PATH not found"));
+    }
+
+    typedef boost::tokenizer<boost::char_separator<char> > tokenizer;
+    boost::char_separator<char> sep(";");
+    tokenizer tok(path, sep);
+    for (tokenizer::iterator it = tok.begin(); it != tok.end(); ++it)
+    {
+        boost::filesystem::path p = *it;
+        p /= filename;
+        boost::array<std::string, 4> extensions =
+            { "", ".exe", ".com", ".bat" };
+        for (boost::array<std::string, 4>::iterator it2 = extensions.begin();
+            it2 != extensions.end(); ++it2)
+        {
+            boost::filesystem::path p2 = p;
+            p2 += *it2;
+            boost::system::error_code ec;
+            bool file = boost::filesystem::is_regular_file(p2, ec);
+            if (!ec && file &&
+                SHGetFileInfoA(p2.string().c_str(), 0, 0, 0, SHGFI_EXETYPE))
+            {
+                return p2.string();
+            }
+        }
+    }
+    return "";
+}
+#endif
+
+}}}
+
+#endif