3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * parts Copyright 1985, 1990, 1993 Free Software Foundation, Inc.
8 * \author Ivan Schreter
9 * \author Dirk Niggemann
10 * \author Asger Alstrup
11 * \author Lars Gullik Bjønnes
12 * \author Jean-Marc Lasgouttes
13 * \author Angus Leeming
17 * Full author contact details are available in file CREDITS.
19 * General path-mangling functions
26 #include "support/filetools.h"
28 #include "support/debug.h"
29 #include "support/environment.h"
30 #include "support/gettext.h"
31 #include "support/lstrings.h"
32 #include "support/os.h"
33 #include "support/Messages.h"
34 #include "support/Package.h"
35 #include "support/PathChanger.h"
36 #include "support/Systemcall.h"
37 #include "support/qstring_helpers.h"
40 #include <QTemporaryFile>
42 #include "support/lassert.h"
43 #include "support/regex.h"
71 bool isLyXFileName(string const & filename)
73 return suffixIs(ascii_lowercase(filename), ".lyx");
77 bool isSGMLFileName(string const & filename)
79 return suffixIs(ascii_lowercase(filename), ".sgml");
83 bool isValidLaTeXFileName(string const & filename)
85 string const invalid_chars("#%\"");
86 return filename.find_first_of(invalid_chars) == string::npos;
90 bool isValidDVIFileName(string const & filename)
92 string const invalid_chars("${}()[]^");
93 return filename.find_first_of(invalid_chars) == string::npos;
97 bool isBinaryFile(FileName const & filename)
99 bool isbinary = false;
100 if (filename.empty() || !filename.exists())
104 magic_t magic_cookie = magic_open(MAGIC_MIME_ENCODING);
106 bool detected = true;
107 if (magic_load(magic_cookie, NULL) != 0) {
108 LYXERR(Debug::FILES, "isBinaryFile: "
109 "Could not load magic database - "
110 << magic_error(magic_cookie));
113 char const *charset = magic_file(magic_cookie,
114 filename.toFilesystemEncoding().c_str());
115 isbinary = contains(charset, "binary");
117 magic_close(magic_cookie);
122 // Try by looking for binary chars at the beginning of the file.
123 // Note that this is formally not correct, since count_bin_chars
124 // expects utf8, and the passed string can be anything: plain text
125 // in any encoding, or really binary data. In practice it works,
126 // since QString::fromUtf8() drops invalid utf8 sequences, and
127 // while the exact number may not be correct, we still get a high
128 // number for truly binary files.
130 ifstream ifs(filename.toFilesystemEncoding().c_str());
134 // Maximum strings to read
135 int const max_count = 50;
137 // Maximum number of binary chars allowed
138 int const max_bin = 5;
143 while (count++ < max_count && !ifs.eof()) {
145 binchars += count_bin_chars(str);
147 return binchars > max_bin;
151 string const latex_path(string const & original_path,
152 latex_path_extension extension,
153 latex_path_dots dots)
155 // On cygwin, we may need windows or posix style paths.
156 string path = os::latex_path(original_path);
157 path = subst(path, "~", "\\string~");
158 if (path.find(' ') != string::npos) {
159 // We can't use '"' because " is sometimes active (e.g. if
160 // babel is loaded with the "german" option)
161 if (extension == EXCLUDE_EXTENSION) {
162 // changeExtension calls os::internal_path internally
163 // so don't use it to remove the extension.
164 string const ext = getExtension(path);
165 string const base = ext.empty() ?
167 path.substr(0, path.length() - ext.length() - 1);
168 // changeExtension calls os::internal_path internally
169 // so don't use it to re-add the extension.
170 path = "\\string\"" + base + "\\string\"." + ext;
172 path = "\\string\"" + path + "\\string\"";
176 if (dots != ESCAPE_DOTS)
179 // Replace dots with the lyxdot macro, but only in the file name,
180 // not the directory part.
181 // addName etc call os::internal_path internally
182 // so don't use them for path manipulation
183 // The directory separator is always '/' for LaTeX.
184 string::size_type pos = path.rfind('/');
185 if (pos == string::npos)
186 return subst(path, ".", "\\lyxdot ");
187 return path.substr(0, pos) + subst(path.substr(pos), ".", "\\lyxdot ");
191 // Substitutes spaces with underscores in filename (and path)
192 FileName const makeLatexName(FileName const & file)
194 string name = file.onlyFileName();
195 string const path = file.onlyPath().absFileName() + "/";
197 // ok so we scan through the string twice, but who cares.
198 // FIXME: in Unicode time this will break for sure! There is
199 // a non-latin world out there...
200 string const keep = "abcdefghijklmnopqrstuvwxyz"
201 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
202 "@!'()*+,-./0123456789:;<=>?[]`|";
204 string::size_type pos = 0;
205 while ((pos = name.find_first_not_of(keep, pos)) != string::npos)
208 FileName latex_name(path + name);
209 latex_name.changeExtension(".tex");
214 string const quoteName(string const & name, quote_style style)
218 // This does not work on native Windows for filenames
219 // containing the following characters < > : " / \ | ? *
220 // Moreover, it can't be made to work, as, according to
221 // http://msdn.microsoft.com/en-us/library/aa365247(VS.85).aspx
222 // those are reserved characters, and thus are forbidden.
223 // Please, also note that the command-line parser in
224 // ForkedCall::generateChild cannot deal with filenames
225 // containing " or ', therefore we don't pass user filenames
226 // to child processes if possible. We store them in a python
227 // script instead, where we don't have these limitations.
229 return (os::shell() == os::UNIX) ?
230 '\'' + subst(name, "'", "\'\\\'\'") + '\'' :
233 // According to the QProcess parser, a single double
234 // quote is represented by three consecutive ones.
235 // Here we simply escape the double quote and let our
236 // simple parser in Systemcall.cpp do the substitution.
237 return '"' + subst(name, "\"", "\\\"") + '"';
240 return "\"" + subst(subst(name, "\\", "\\\\"), "\"", "\\\"")
243 // shut up stupid compiler
249 // Uses a string of paths separated by ";"s to find a file to open.
250 // Can't cope with pathnames with a ';' in them. Returns full path to file.
251 // If path entry begins with $$LyX/, use system_lyxdir
252 // If path entry begins with $$User/, use user_lyxdir
253 // Example: "$$User/doc;$$LyX/doc"
254 FileName const fileOpenSearch(string const & path, string const & name,
259 bool notfound = true;
260 string tmppath = split(path, path_element, ';');
262 while (notfound && !path_element.empty()) {
263 path_element = os::internal_path(path_element);
264 if (!suffixIs(path_element, '/'))
266 path_element = subst(path_element, "$$LyX",
267 package().system_support().absFileName());
268 path_element = subst(path_element, "$$User",
269 package().user_support().absFileName());
271 real_file = fileSearch(path_element, name, ext);
273 if (real_file.empty()) {
275 tmppath = split(tmppath, path_element, ';');
276 } while (!tmppath.empty() && path_element.empty());
286 // Returns the real name of file name in directory path, with optional
288 FileName const fileSearch(string const & path, string const & name,
289 string const & ext, search_mode mode)
291 // if `name' is an absolute path, we ignore the setting of `path'
292 // Expand Environmentvariables in 'name'
293 string const tmpname = replaceEnvironmentPath(name);
294 FileName fullname(makeAbsPath(tmpname, path));
295 // search first without extension, then with it.
296 if (fullname.isReadableFile())
300 return mode == may_not_exist ? fullname : FileName();
301 // Only add the extension if it is not already the extension of
303 if (getExtension(fullname.absFileName()) != ext)
304 fullname = FileName(addExtension(fullname.absFileName(), ext));
305 if (fullname.isReadableFile() || mode == may_not_exist)
311 // Search the file name.ext in the subdirectory dir of
313 // 2) build_lyxdir (if not empty)
315 FileName const libFileSearch(string const & dir, string const & name,
318 FileName fullname = fileSearch(addPath(package().user_support().absFileName(), dir),
320 if (!fullname.empty())
323 if (!package().build_support().empty())
324 fullname = fileSearch(addPath(package().build_support().absFileName(), dir),
326 if (!fullname.empty())
329 return fileSearch(addPath(package().system_support().absFileName(), dir), name, ext);
333 FileName const i18nLibFileSearch(string const & dir, string const & name,
336 /* The highest priority value is the `LANGUAGE' environment
337 variable. But we don't use the value if the currently
338 selected locale is the C locale. This is a GNU extension.
340 Otherwise, w use a trick to guess what support/gettext.has done:
341 each po file is able to tell us its name. (JMarc)
344 string lang = getGuiMessages().language();
345 string const language = getEnv("LANGUAGE");
346 if (!lang.empty() && !language.empty())
350 lang = split(lang, l, ':');
353 // First try with the full name
354 tmp = libFileSearch(addPath(dir, l), name, ext);
358 // Then the name without country code
359 string const shortl = token(l, '_', 0);
361 tmp = libFileSearch(addPath(dir, shortl), name, ext);
367 // For compatibility, to be removed later (JMarc)
368 tmp = libFileSearch(dir, token(l, '_', 0) + '_' + name,
371 lyxerr << "i18nLibFileSearch: File `" << tmp
372 << "' has been found by the old method" <<endl;
376 lang = split(lang, l, ':');
379 return libFileSearch(dir, name, ext);
383 FileName const imageLibFileSearch(string & dir, string const & name,
386 if (!lyx::lyxrc.icon_set.empty()) {
387 string const imagedir = addPath(dir, lyx::lyxrc.icon_set);
388 FileName const fn = libFileSearch(imagedir, name, ext);
394 return libFileSearch(dir, name, ext);
398 string const commandPrep(string const & command_in)
400 static string const token_scriptpath = "$$s/";
401 string const python_call = "python -tt";
403 string command = command_in;
404 if (prefixIs(command_in, python_call))
405 command = os::python() + command_in.substr(python_call.length());
407 // Find the starting position of "$$s/"
408 string::size_type const pos1 = command.find(token_scriptpath);
409 if (pos1 == string::npos)
411 // Find the end of the "$$s/some_subdir/some_script" word within
412 // command. Assumes that the script name does not contain spaces.
413 string::size_type const start_script = pos1 + 4;
414 string::size_type const pos2 = command.find(' ', start_script);
415 string::size_type const size_script = pos2 == string::npos?
416 (command.size() - start_script) : pos2 - start_script;
418 // Does this script file exist?
419 string const script =
420 libFileSearch(".", command.substr(start_script, size_script)).absFileName();
422 if (script.empty()) {
423 // Replace "$$s/" with ""
424 command.erase(pos1, 4);
426 quote_style style = quote_shell;
427 if (prefixIs(command, os::python()))
428 style = quote_python;
430 // Replace "$$s/foo/some_script" with "<path to>/some_script".
431 string::size_type const size_replace = size_script + 4;
432 command.replace(pos1, size_replace, quoteName(script, style));
439 static string createTempFile(QString const & mask)
441 // FIXME: This is not safe. QTemporaryFile creates a file in open(),
442 // but the file is deleted when qt_tmp goes out of scope.
443 // Therefore the next call to createTempFile() may create the
444 // same file again. To make this safe the QTemporaryFile object
445 // needs to be kept for the whole life time of the temp file name.
446 // This could be achieved by creating a class TempDir (like
447 // TempFile, but using a currentlky non-existing
448 // QTemporaryDirectory object).
449 QTemporaryFile qt_tmp(mask + ".XXXXXXXXXXXX");
451 string const temp_file = fromqstr(qt_tmp.fileName());
452 LYXERR(Debug::FILES, "Temporary file `" << temp_file << "' created.");
455 LYXERR(Debug::FILES, "Unable to create temporary file with following template: "
456 << qt_tmp.fileTemplate());
461 static FileName createTmpDir(FileName const & tempdir, string const & mask)
463 LYXERR(Debug::FILES, "createTmpDir: tempdir=`" << tempdir << "'\n"
464 << "createTmpDir: mask=`" << mask << '\'');
466 QFileInfo tmp_fi(QDir(toqstr(tempdir.absFileName())), toqstr(mask));
467 FileName const tmpfl(createTempFile(tmp_fi.absoluteFilePath()));
469 if (tmpfl.empty() || !tmpfl.createDirectory(0700)) {
470 LYXERR0("LyX could not create temporary directory in " << tempdir
479 FileName const createLyXTmpDir(FileName const & deflt)
481 if (deflt.empty() || deflt == package().system_temp_dir())
482 return createTmpDir(package().system_temp_dir(), "lyx_tmpdir");
484 if (deflt.createDirectory(0777))
487 if (deflt.isDirWritable()) {
488 // deflt could not be created because it
489 // did exist already, so let's create our own
491 return createTmpDir(deflt, "lyx_tmpdir");
493 // some other error occured.
494 return createTmpDir(package().system_temp_dir(), "lyx_tmpdir");
499 // Strip filename from path name
500 string const onlyPath(string const & filename)
502 // If empty filename, return empty
503 if (filename.empty())
506 // Find last / or start of filename
507 size_t j = filename.rfind('/');
508 return j == string::npos ? "./" : filename.substr(0, j + 1);
512 // Convert relative path into absolute path based on a basepath.
513 // If relpath is absolute, just use that.
514 // If basepath is empty, use CWD as base.
515 // Note that basePath can be a relative path, in the sense that it may
516 // not begin with "/" (e.g.), but it should NOT contain such constructs
518 // FIXME It might be nice if the code didn't simply assume that.
519 FileName const makeAbsPath(string const & relPath, string const & basePath)
521 // checks for already absolute path
522 if (FileName::isAbsolute(relPath))
523 return FileName(relPath);
525 // Copies given paths
526 string tempRel = os::internal_path(relPath);
527 // Since TempRel is NOT absolute, we can safely replace "//" with "/"
528 tempRel = subst(tempRel, "//", "/");
532 if (FileName::isAbsolute(basePath))
535 tempBase = addPath(FileName::getcwd().absFileName(), basePath);
537 // Handle /./ at the end of the path
538 while (suffixIs(tempBase, "/./"))
539 tempBase.erase(tempBase.length() - 2);
541 // processes relative path
542 string rTemp = tempRel;
545 // Check for a leading "~"
547 rTemp = split(rTemp, temp, '/');
549 tempBase = Package::get_home_dir().absFileName();
554 while (!rTemp.empty()) {
556 rTemp = split(rTemp, temp, '/');
558 if (temp == ".") continue;
560 // Remove one level of TempBase
561 if (tempBase.length() <= 1) {
562 //this is supposed to be an absolute path, so...
566 //erase a trailing slash if there is one
567 if (suffixIs(tempBase, "/"))
568 tempBase.erase(tempBase.length() - 1, string::npos);
570 string::size_type i = tempBase.length() - 1;
571 while (i > 0 && tempBase[i] != '/')
574 tempBase.erase(i, string::npos);
577 } else if (temp.empty() && !rTemp.empty()) {
578 tempBase = os::current_root() + rTemp;
581 // Add this piece to TempBase
582 if (!suffixIs(tempBase, '/'))
588 // returns absolute path
589 return FileName(tempBase);
593 // Correctly append filename to the pathname.
594 // If pathname is '.', then don't use pathname.
595 // Chops any path of filename.
596 string const addName(string const & path, string const & fname)
598 string const basename = onlyFileName(fname);
601 if (path != "." && path != "./" && !path.empty()) {
602 buf = os::internal_path(path);
603 if (!suffixIs(path, '/'))
607 return buf + basename;
611 // Strips path from filename
612 string const onlyFileName(string const & fname)
617 string::size_type j = fname.rfind('/');
618 if (j == string::npos) // no '/' in fname
622 return fname.substr(j + 1);
626 // Create absolute path. If impossible, don't do anything
627 // Supports ./ and ~/. Later we can add support for ~logname/. (Asger)
628 string const expandPath(string const & path)
630 // checks for already absolute path
631 string rTemp = replaceEnvironmentPath(path);
632 if (FileName::isAbsolute(rTemp))
636 string const copy = rTemp;
639 rTemp = split(rTemp, temp, '/');
642 return FileName::getcwd().absFileName() + '/' + rTemp;
645 return Package::get_home_dir().absFileName() + '/' + rTemp;
648 return makeAbsPath(copy).absFileName();
650 // Don't know how to handle this
655 // Search the string for ${VAR} and $VAR and replace VAR using getenv.
656 string const replaceEnvironmentPath(string const & path)
658 // ${VAR} is defined as
659 // $\{[A-Za-z_][A-Za-z_0-9]*\}
660 static string const envvar_br = "[$]\\{([A-Za-z_][A-Za-z_0-9]*)\\}";
662 // $VAR is defined as:
663 // $[A-Za-z_][A-Za-z_0-9]*
664 static string const envvar = "[$]([A-Za-z_][A-Za-z_0-9]*)";
666 static regex const envvar_br_re("(.*)" + envvar_br + "(.*)");
667 static regex const envvar_re("(.*)" + envvar + "(.*)");
668 string result = path;
671 if (!regex_match(result, what, envvar_br_re)) {
672 if (!regex_match(result, what, envvar_re))
675 string env_var = getEnv(what.str(2));
676 result = what.str(1) + env_var + what.str(3);
682 // Return a command prefix for setting the environment of the TeX engine.
683 string latexEnvCmdPrefix(string const & path)
685 if (path.empty() || lyxrc.texinputs_prefix.empty())
688 string const texinputs_prefix = os::latex_path_list(
689 replaceCurdirPath(path, lyxrc.texinputs_prefix));
690 string const sep = string(1, os::path_separator(os::TEXENGINE));
691 string const texinputs = getEnv("TEXINPUTS");
693 if (os::shell() == os::UNIX)
694 return "env TEXINPUTS=\"." + sep + texinputs_prefix
695 + sep + texinputs + "\" ";
697 return "cmd /d /c set TEXINPUTS=." + sep + texinputs_prefix
698 + sep + texinputs + "&";
702 // Replace current directory in all elements of a path list with a given path.
703 string const replaceCurdirPath(string const & path, string const & pathlist)
705 string const oldpathlist = replaceEnvironmentPath(pathlist);
706 char const sep = os::path_separator();
709 for (size_t i = 0, k = 0; i != string::npos; k = i) {
710 i = oldpathlist.find(sep, i);
711 string p = oldpathlist.substr(k, i - k);
712 if (FileName::isAbsolute(p)) {
718 } else if (prefixIs(p, "./")) {
720 while (p[offset] == '/')
723 newpathlist += addPath(path, p.substr(offset));
724 if (suffixIs(p, "//"))
727 if (i != string::npos) {
729 // Stop here if the last element is empty
730 if (++i == oldpathlist.length())
738 // Make relative path out of two absolute paths
739 docstring const makeRelPath(docstring const & abspath, docstring const & basepath)
740 // Makes relative path out of absolute path. If it is deeper than basepath,
741 // it's easy. If basepath and abspath share something (they are all deeper
742 // than some directory), it'll be rendered using ..'s. If they are completely
743 // different, then the absolute path will be used as relative path.
745 docstring::size_type const abslen = abspath.length();
746 docstring::size_type const baselen = basepath.length();
748 docstring::size_type i = os::common_path(abspath, basepath);
751 // actually no match - cannot make it relative
755 // Count how many dirs there are in basepath above match
756 // and append as many '..''s into relpath
758 docstring::size_type j = i;
759 while (j < baselen) {
760 if (basepath[j] == '/') {
761 if (j + 1 == baselen)
768 // Append relative stuff from common directory to abspath
769 if (abspath[i] == '/')
771 for (; i < abslen; ++i)
774 if (suffixIs(buf, '/'))
775 buf.erase(buf.length() - 1);
776 // Substitute empty with .
783 // Append sub-directory(ies) to a path in an intelligent way
784 string const addPath(string const & path, string const & path_2)
787 string const path2 = os::internal_path(path_2);
789 if (!path.empty() && path != "." && path != "./") {
790 buf = os::internal_path(path);
791 if (path[path.length() - 1] != '/')
795 if (!path2.empty()) {
796 string::size_type const p2start = path2.find_first_not_of('/');
797 string::size_type const p2end = path2.find_last_not_of('/');
798 string const tmp = path2.substr(p2start, p2end - p2start + 1);
805 string const changeExtension(string const & oldname, string const & extension)
807 string::size_type const last_slash = oldname.rfind('/');
808 string::size_type last_dot = oldname.rfind('.');
809 if (last_dot < last_slash && last_slash != string::npos)
810 last_dot = string::npos;
813 // Make sure the extension starts with a dot
814 if (!extension.empty() && extension[0] != '.')
815 ext= '.' + extension;
819 return os::internal_path(oldname.substr(0, last_dot) + ext);
823 string const removeExtension(string const & name)
825 return changeExtension(name, string());
829 string const addExtension(string const & name, string const & extension)
831 if (!extension.empty() && extension[0] != '.')
832 return name + '.' + extension;
833 return name + extension;
837 /// Return the extension of the file (not including the .)
838 string const getExtension(string const & name)
840 string::size_type const last_slash = name.rfind('/');
841 string::size_type const last_dot = name.rfind('.');
842 if (last_dot != string::npos &&
843 (last_slash == string::npos || last_dot > last_slash))
844 return name.substr(last_dot + 1,
845 name.length() - (last_dot + 1));
851 string const unzippedFileName(string const & zipped_file)
853 string const ext = getExtension(zipped_file);
854 if (ext == "gz" || ext == "z" || ext == "Z")
855 return changeExtension(zipped_file, string());
856 return onlyPath(zipped_file) + "unzipped_" + onlyFileName(zipped_file);
860 FileName const unzipFile(FileName const & zipped_file, string const & unzipped_file)
862 FileName const tempfile = FileName(unzipped_file.empty() ?
863 unzippedFileName(zipped_file.toFilesystemEncoding()) :
866 string const command = "gunzip -c " +
867 zipped_file.toFilesystemEncoding() + " > " +
868 tempfile.toFilesystemEncoding();
870 one.startscript(Systemcall::Wait, command);
871 // test that command was executed successfully (anon)
872 // yes, please do. (Lgb)
877 docstring const makeDisplayPath(string const & path, unsigned int threshold)
881 // If file is from LyXDir, display it as if it were relative.
882 string const system = package().system_support().absFileName();
883 if (prefixIs(str, system) && str != system)
884 return from_utf8("[" + str.erase(0, system.length()) + "]");
886 // replace /home/blah with ~/
887 string const home = Package::get_home_dir().absFileName();
888 if (!home.empty() && prefixIs(str, home))
889 str = subst(str, home, "~");
891 if (str.length() <= threshold)
892 return from_utf8(os::external_path(str));
894 string const prefix = ".../";
895 docstring dstr = from_utf8(str);
898 while (dstr.length() > threshold)
899 dstr = split(dstr, temp, '/');
901 // Did we shorten everything away?
903 // Yes, filename itself is too long.
904 // Pick the start and the end of the filename.
905 dstr = from_utf8(onlyFileName(path));
906 docstring const head = dstr.substr(0, threshold / 2 - 3);
908 docstring::size_type len = dstr.length();
909 docstring const tail =
910 dstr.substr(len - threshold / 2 - 2, len - 1);
911 dstr = head + from_ascii("...") + tail;
914 return from_utf8(os::external_path(prefix + to_utf8(dstr)));
919 bool readLink(FileName const & file, FileName & link)
921 string const encoded = file.toFilesystemEncoding();
922 #ifdef HAVE_DEF_PATH_MAX
923 char linkbuffer[PATH_MAX + 1];
924 ssize_t const nRead = ::readlink(encoded.c_str(),
925 linkbuffer, sizeof(linkbuffer) - 1);
928 linkbuffer[nRead] = '\0'; // terminator
930 vector<char> buf(1024);
934 nRead = ::readlink(encoded.c_str(), &buf[0], buf.size() - 1);
938 if (static_cast<size_t>(nRead) < buf.size() - 1) {
941 buf.resize(buf.size() * 2);
943 buf[nRead] = '\0'; // terminator
944 const char * linkbuffer = &buf[0];
946 link = makeAbsPath(linkbuffer, onlyPath(file.absFileName()));
950 bool readLink(FileName const &, FileName &)
957 cmd_ret const runCommand(string const & cmd)
959 // FIXME: replace all calls to RunCommand with ForkedCall
960 // (if the output is not needed) or the code in ISpell.cpp
961 // (if the output is needed).
963 // One question is if we should use popen or
964 // create our own popen based on fork, exec, pipe
965 // of course the best would be to have a
966 // pstream (process stream), with the
967 // variants ipstream, opstream
972 PROCESS_INFORMATION process;
973 SECURITY_ATTRIBUTES security;
976 bool err2out = false;
978 string const infile = trim(split(cmd, command, '<'), " \"");
979 command = rtrim(command);
980 if (suffixIs(command, "2>&1")) {
981 command = rtrim(command, "2>&1");
984 string const cmdarg = "/d /c " + command;
985 string const comspec = getEnv("COMSPEC");
987 security.nLength = sizeof(SECURITY_ATTRIBUTES);
988 security.bInheritHandle = TRUE;
989 security.lpSecurityDescriptor = NULL;
991 if (CreatePipe(&in, &out, &security, 0)) {
992 memset(&startup, 0, sizeof(STARTUPINFO));
993 memset(&process, 0, sizeof(PROCESS_INFORMATION));
995 startup.cb = sizeof(STARTUPINFO);
996 startup.dwFlags = STARTF_USESTDHANDLES;
998 startup.hStdError = err2out ? out : GetStdHandle(STD_ERROR_HANDLE);
999 startup.hStdInput = infile.empty()
1000 ? GetStdHandle(STD_INPUT_HANDLE)
1001 : CreateFile(infile.c_str(), GENERIC_READ,
1002 FILE_SHARE_READ, &security, OPEN_EXISTING,
1003 FILE_ATTRIBUTE_NORMAL, NULL);
1004 startup.hStdOutput = out;
1006 if (startup.hStdInput != INVALID_HANDLE_VALUE &&
1007 CreateProcess(comspec.c_str(), (LPTSTR)cmdarg.c_str(),
1008 &security, &security, TRUE, CREATE_NO_WINDOW,
1009 0, 0, &startup, &process)) {
1011 CloseHandle(process.hThread);
1012 fno = _open_osfhandle((long)in, _O_RDONLY);
1014 inf = _fdopen(fno, "r");
1017 #elif defined (HAVE_POPEN)
1018 FILE * inf = ::popen(cmd.c_str(), os::popen_read_mode());
1019 #elif defined (HAVE__POPEN)
1020 FILE * inf = ::_popen(cmd.c_str(), os::popen_read_mode());
1022 #error No popen() function.
1025 // (Claus Hentschel) Check if popen was successful ;-)
1027 lyxerr << "RunCommand:: could not start child process" << endl;
1028 return make_pair(-1, string());
1034 ret += static_cast<char>(c);
1038 #if defined (_WIN32)
1039 WaitForSingleObject(process.hProcess, INFINITE);
1040 if (!infile.empty())
1041 CloseHandle(startup.hStdInput);
1042 CloseHandle(process.hProcess);
1043 int const pret = fclose(inf);
1044 #elif defined (HAVE_PCLOSE)
1045 int const pret = pclose(inf);
1046 #elif defined (HAVE__PCLOSE)
1047 int const pret = _pclose(inf);
1049 #error No pclose() function.
1053 perror("RunCommand:: could not terminate child process");
1055 return make_pair(pret, ret);
1059 FileName const findtexfile(string const & fil, string const & /*format*/)
1061 /* There is no problem to extend this function too use other
1062 methods to look for files. It could be setup to look
1063 in environment paths and also if wanted as a last resort
1064 to a recursive find. One of the easier extensions would
1065 perhaps be to use the LyX file lookup methods. But! I am
1066 going to implement this until I see some demand for it.
1070 // If the file can be found directly, we just return a
1071 // absolute path version of it.
1072 FileName const absfile(makeAbsPath(fil));
1073 if (absfile.exists())
1076 // Now we try to find it using kpsewhich.
1077 // It seems from the kpsewhich manual page that it is safe to use
1078 // kpsewhich without --format: "When the --format option is not
1079 // given, the search path used when looking for a file is inferred
1080 // from the name given, by looking for a known extension. If no
1081 // known extension is found, the search path for TeX source files
1083 // However, we want to take advantage of the format sine almost all
1084 // the different formats has environment variables that can be used
1085 // to controll which paths to search. f.ex. bib looks in
1086 // BIBINPUTS and TEXBIB. Small list follows:
1087 // bib - BIBINPUTS, TEXBIB
1089 // graphic/figure - TEXPICTS, TEXINPUTS
1090 // ist - TEXINDEXSTYLE, INDEXSTYLE
1091 // pk - PROGRAMFONTS, PKFONTS, TEXPKS, GLYPHFONTS, TEXFONTS
1093 // tfm - TFMFONTS, TEXFONTS
1094 // This means that to use kpsewhich in the best possible way we
1095 // should help it by setting additional path in the approp. envir.var.
1096 string const kpsecmd = "kpsewhich " + fil;
1098 cmd_ret const c = runCommand(kpsecmd);
1100 LYXERR(Debug::LATEX, "kpse status = " << c.first << '\n'
1101 << "kpse result = `" << rtrim(c.second, "\n\r") << '\'');
1103 return FileName(rtrim(to_utf8(from_filesystem8bit(c.second)), "\n\r"));
1109 int compare_timestamps(FileName const & file1, FileName const & file2)
1111 // If the original is newer than the copy, then copy the original
1112 // to the new directory.
1115 if (file1.exists() && file2.exists()) {
1116 double const tmp = difftime(file1.lastModified(), file2.lastModified());
1118 cmp = tmp > 0 ? 1 : -1;
1120 } else if (file1.exists()) {
1122 } else if (file2.exists()) {
1130 bool prefs2prefs(FileName const & filename, FileName const & tempfile, bool lfuns)
1132 FileName const script = libFileSearch("scripts", "prefs2prefs.py");
1133 if (script.empty()) {
1134 LYXERR0("Could not find bind file conversion "
1135 "script prefs2prefs.py.");
1139 ostringstream command;
1140 command << os::python() << ' ' << quoteName(script.toFilesystemEncoding())
1141 << ' ' << (lfuns ? "-l" : "-p") << ' '
1142 << quoteName(filename.toFilesystemEncoding())
1143 << ' ' << quoteName(tempfile.toFilesystemEncoding());
1144 string const command_str = command.str();
1146 LYXERR(Debug::FILES, "Running `" << command_str << '\'');
1148 cmd_ret const ret = runCommand(command_str);
1149 if (ret.first != 0) {
1150 LYXERR0("Could not run file conversion script prefs2prefs.py.");
1156 int fileLock(const char * lock_file)
1159 #if defined(HAVE_LOCKF)
1160 fd = open(lock_file, O_CREAT|O_APPEND|O_SYNC|O_RDWR, 0666);
1161 if (lockf(fd, F_LOCK, 0) != 0) {
1169 void fileUnlock(int fd, const char * /* lock_file*/)
1171 #if defined(HAVE_LOCKF)
1173 if (lockf(fd, F_ULOCK, 0))
1174 LYXERR0("Can't unlock the file.");
1180 } //namespace support