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c2ff9de084
#7928 git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@40402 a592a061-630c-0410-9148-cb99ea01b6c8
469 lines
10 KiB
C++
469 lines
10 KiB
C++
/**
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* \file os_cygwin.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Ruurd A. Reitsma
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* \author Claus Hentschel
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* \author Angus Leeming
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* \author Enrico Forestieri
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*
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* Full author contact details are available in file CREDITS.
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*
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* Various OS specific functions
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*/
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#include <config.h>
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#include "LyXRC.h"
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#include "support/os.h"
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#include "support/debug.h"
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#include "support/environment.h"
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#include "support/FileName.h"
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#include "support/filetools.h"
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#include "support/lassert.h"
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#include "support/lstrings.h"
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#include <windows.h>
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#include <io.h>
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#include <windef.h>
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#include <shellapi.h>
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#include <shlwapi.h>
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#include <limits.h>
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#include <stdlib.h>
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#include <cygwin/version.h>
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#include <sys/cygwin.h>
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#include <ostream>
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using namespace std;
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namespace lyx {
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void lyx_exit(int);
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namespace support {
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namespace os {
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namespace {
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int argc_ = 0;
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char ** argv_ = 0;
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bool windows_style_tex_paths_ = false;
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// In both is_posix_path() and is_windows_path() it is assumed that
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// a valid posix or pseudo-windows path is passed. They simply tell
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// whether the path looks posix/pseudo-windows or not.
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bool is_posix_path(string const & p)
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{
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return p.empty() ||
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(!contains(p, '\\') && (p.length() <= 1 || p[1] != ':'));
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}
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// This is a test for a win32 style path with forward slashes (pseudo-windows).
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bool is_windows_path(string const & p)
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{
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return p.empty() || (!contains(p, '\\') && p[0] != '/');
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}
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// Starting from Cygwin 1.7, new APIs for path conversions were introduced.
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// The old ones are now deprecated, so avoid them if we detect a modern Cygwin.
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#if CYGWIN_VERSION_DLL_MAJOR >= 1007
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enum PathStyle {
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posix = CCP_WIN_A_TO_POSIX | CCP_RELATIVE,
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windows = CCP_POSIX_TO_WIN_A | CCP_RELATIVE
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};
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/// Convert a path to or from posix style.
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/// \p p is encoded in local 8bit encoding or utf8.
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/// The result is returned in the same encoding as \p p.
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string convert_path(string const & p, PathStyle const & target)
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{
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if ((target == posix && is_posix_path(p)) ||
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(target == windows && is_windows_path(p)))
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return p;
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char path_buf[PATH_MAX];
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// cygwin_conv_path does not care about the encoding.
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if (cygwin_conv_path(target, p.c_str(), path_buf, sizeof(path_buf))) {
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lyxerr << "LyX: Cannot convert path: " << p << endl;
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return subst(p, '\\', '/');
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}
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return subst(path_buf, '\\', '/');
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}
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/// Convert a path list to or from posix style.
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/// \p p is encoded in local 8bit encoding or utf8.
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/// The result is returned in the same encoding as \p p.
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string convert_path_list(string const & p, PathStyle const & target)
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{
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if (p.empty())
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return p;
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char const * const pc = p.c_str();
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PathStyle const actual = cygwin_posix_path_list_p(pc) ? posix : windows;
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if (target != actual) {
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int const size = cygwin_conv_path_list(target, pc, NULL, 0);
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char * ptr = new char[size];
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if (ptr && cygwin_conv_path_list(target, pc, ptr, size) == 0) {
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string const path_list = subst(ptr, '\\', '/');
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delete [] ptr;
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return path_list;
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} else
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lyxerr << "LyX: Cannot convert path list: " << p << endl;
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}
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return subst(p, '\\', '/');
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}
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#else
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enum PathStyle {
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posix,
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windows
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};
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/// Convert a path to or from posix style.
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/// \p p is encoded in local 8bit encoding or utf8.
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/// The result is returned in the same encoding as \p p.
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string convert_path(string const & p, PathStyle const & target)
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{
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char path_buf[PATH_MAX];
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if ((target == posix && is_posix_path(p)) ||
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(target == windows && is_windows_path(p)))
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return p;
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path_buf[0] = '\0';
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// cygwin_conv_to_posix_path and cygwin_conv_to_win32_path do not
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// care about the encoding.
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if (target == posix)
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cygwin_conv_to_posix_path(p.c_str(), path_buf);
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else
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cygwin_conv_to_win32_path(p.c_str(), path_buf);
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return subst(path_buf[0] ? path_buf : p, '\\', '/');
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}
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/// Convert a path list to or from posix style.
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/// \p p is encoded in local 8bit encoding or utf8.
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/// The result is returned in the same encoding as \p p.
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string convert_path_list(string const & p, PathStyle const & target)
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{
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if (p.empty())
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return p;
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char const * const pc = p.c_str();
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PathStyle const actual = cygwin_posix_path_list_p(pc) ? posix : windows;
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if (target != actual) {
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int const target_size = (target == posix) ?
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cygwin_win32_to_posix_path_list_buf_size(pc) :
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cygwin_posix_to_win32_path_list_buf_size(pc);
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char * ptr = new char[target_size];
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if (ptr) {
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// FIXME: See comment in convert_path() above
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if (target == posix)
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cygwin_win32_to_posix_path_list(pc, ptr);
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else
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cygwin_posix_to_win32_path_list(pc, ptr);
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string path_list = subst(ptr, '\\', '/');
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delete [] ptr;
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return path_list;
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}
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}
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return subst(p, '\\', '/');
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}
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#endif
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BOOL terminate_handler(DWORD event)
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{
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if (event == CTRL_CLOSE_EVENT
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|| event == CTRL_LOGOFF_EVENT
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|| event == CTRL_SHUTDOWN_EVENT) {
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lyx::lyx_exit(1);
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return TRUE;
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}
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return FALSE;
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}
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} // namespace anon
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void init(int argc, char * argv[])
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{
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argc_ = argc;
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argv_ = argv;
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// Make sure that the TEMP variable is set
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// and sync the Windows environment.
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setenv("TEMP", "/tmp", false);
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cygwin_internal(CW_SYNC_WINENV);
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// Catch shutdown events.
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SetConsoleCtrlHandler((PHANDLER_ROUTINE)terminate_handler, TRUE);
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}
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string utf8_argv(int i)
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{
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LASSERT(i < argc_, /**/);
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return to_utf8(from_local8bit(argv_[i]));
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}
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void remove_internal_args(int, int)
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{}
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string current_root()
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{
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return string("/");
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}
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bool isFilesystemCaseSensitive()
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{
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return false;
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}
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docstring::size_type common_path(docstring const & p1, docstring const & p2)
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{
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docstring::size_type i = 0;
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docstring::size_type const p1_len = p1.length();
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docstring::size_type const p2_len = p2.length();
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while (i < p1_len && i < p2_len && uppercase(p1[i]) == uppercase(p2[i]))
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++i;
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if ((i < p1_len && i < p2_len)
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|| (i < p1_len && p1[i] != '/' && i == p2_len)
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|| (i < p2_len && p2[i] != '/' && i == p1_len))
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{
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if (i)
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--i; // here was the last match
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while (i && p1[i] != '/')
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--i;
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}
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return i;
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}
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bool path_prefix_is(string const & path, string const & pre)
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{
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return path_prefix_is(const_cast<string &>(path), pre, CASE_UNCHANGED);
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}
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bool path_prefix_is(string & path, string const & pre, path_case how)
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{
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docstring const p1 = from_utf8(path);
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docstring const p2 = from_utf8(pre);
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docstring::size_type const p1_len = p1.length();
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docstring::size_type const p2_len = p2.length();
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docstring::size_type common_len = common_path(p1, p2);
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if (p2[p2_len - 1] == '/' && p1_len != p2_len)
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++common_len;
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if (common_len != p2_len)
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return false;
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if (how == CASE_ADJUSTED && !prefixIs(path, pre)) {
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if (p1_len < common_len)
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path = to_utf8(p2.substr(0, p1_len));
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else
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path = to_utf8(p2 + p1.substr(common_len,
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p1_len - common_len));
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}
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return true;
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}
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string external_path(string const & p)
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{
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return convert_path(p, PathStyle(posix));
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}
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string internal_path(string const & p)
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{
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return convert_path(p, PathStyle(posix));
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}
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string safe_internal_path(string const & p, file_access)
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{
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return convert_path(p, PathStyle(posix));
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}
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string external_path_list(string const & p)
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{
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return convert_path_list(p, PathStyle(posix));
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}
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string internal_path_list(string const & p)
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{
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return convert_path_list(p, PathStyle(posix));
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}
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string latex_path(string const & p)
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{
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// We may need a posix style path or a windows style path (depending
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// on windows_style_tex_paths_), but we use always forward slashes,
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// since it gets written into a .tex file.
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if (windows_style_tex_paths_ && FileName::isAbsolute(p)) {
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string dos_path = convert_path(p, PathStyle(windows));
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LYXERR(Debug::LATEX, "<Path correction for LaTeX> ["
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<< p << "]->>[" << dos_path << ']');
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return dos_path;
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}
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return convert_path(p, PathStyle(posix));
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}
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string latex_path_list(string const & p)
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{
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// We may need a posix style path or a windows style path (depending
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// on windows_style_tex_paths_), but we use always forward slashes,
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// since this is standard for all tex engines.
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if (windows_style_tex_paths_)
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return convert_path_list(p, PathStyle(windows));
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return convert_path_list(p, PathStyle(posix));
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}
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bool is_valid_strftime(string const & p)
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{
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string::size_type pos = p.find_first_of('%');
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while (pos != string::npos) {
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if (pos + 1 == string::npos)
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break;
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if (!containsOnly(p.substr(pos + 1, 1),
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"aAbBcCdDeEFgGhHIjklmMnOpPrRsStTuUVwWxXyYzZ%+"))
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return false;
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if (pos + 2 == string::npos)
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break;
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pos = p.find_first_of('%', pos + 2);
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}
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return true;
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}
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// returns a string suitable to be passed to popen when
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// reading a pipe
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char const * popen_read_mode()
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{
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return "r";
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}
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string const & nulldev()
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{
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static string const nulldev_ = "/dev/null";
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return nulldev_;
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}
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shell_type shell()
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{
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return UNIX;
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}
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char path_separator(path_type type)
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{
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if (type == TEXENGINE)
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return windows_style_tex_paths_ ? ';' : ':';
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return ':';
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}
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void windows_style_tex_paths(bool use_windows_paths)
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{
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windows_style_tex_paths_ = use_windows_paths;
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}
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bool canAutoOpenFile(string const & ext, auto_open_mode const mode)
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{
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if (ext.empty())
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return false;
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string const full_ext = "." + ext;
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DWORD bufSize = MAX_PATH + 100;
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TCHAR buf[MAX_PATH + 100];
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// reference: http://msdn.microsoft.com/en-us/library/bb773471.aspx
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char const * action = (mode == VIEW) ? "open" : "edit";
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return S_OK == AssocQueryString(ASSOCF_INIT_IGNOREUNKNOWN,
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ASSOCSTR_EXECUTABLE, full_ext.c_str(), action, buf, &bufSize);
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}
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bool autoOpenFile(string const & filename, auto_open_mode const mode,
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string const & path)
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{
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string const texinputs = os::latex_path_list(
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replaceCurdirPath(path, lyxrc.texinputs_prefix));
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string const sep = windows_style_tex_paths_ ? ";" : ":";
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string const oldval = getEnv("TEXINPUTS");
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string const newval = "." + sep + texinputs + sep + oldval;
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if (!path.empty() && !lyxrc.texinputs_prefix.empty()) {
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setEnv("TEXINPUTS", newval);
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cygwin_internal(CW_SYNC_WINENV);
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}
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// reference: http://msdn.microsoft.com/en-us/library/bb762153.aspx
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string const win_path = to_local8bit(from_utf8(convert_path(filename, PathStyle(windows))));
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char const * action = (mode == VIEW) ? "open" : "edit";
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bool success = reinterpret_cast<int>(ShellExecute(NULL, action,
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win_path.c_str(), NULL, NULL, 1)) > 32;
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if (!path.empty() && !lyxrc.texinputs_prefix.empty()) {
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setEnv("TEXINPUTS", oldval);
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cygwin_internal(CW_SYNC_WINENV);
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}
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return success;
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}
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string real_path(string const & path)
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{
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char rpath[PATH_MAX + 1];
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char * result = realpath(path.c_str(), rpath);
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return FileName::fromFilesystemEncoding(result ? rpath : path).absFileName();
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}
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} // namespace os
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} // namespace support
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} // namespace lyx
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