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
24 #include "support/convert.h"
25 #include "support/environment.h"
26 #include "support/filetools.h"
27 #include "support/fs_extras.h"
28 #include "support/lstrings.h"
29 #include "support/lyxlib.h"
30 #include "support/os.h"
31 #include "support/package.h"
32 #include "support/path.h"
33 #include "support/systemcall.h"
35 // FIXME Interface violation
39 #include <boost/assert.hpp>
40 #include <boost/filesystem/operations.hpp>
41 #include <boost/regex.hpp>
54 #ifndef CXX_GLOBAL_CSTD
65 using std::ostringstream;
68 namespace fs = boost::filesystem;
73 bool isLyXFilename(string const & filename)
75 return suffixIs(ascii_lowercase(filename), ".lyx");
79 bool isSGMLFilename(string const & filename)
81 return suffixIs(ascii_lowercase(filename), ".sgml");
85 string const latex_path(string const & original_path,
86 latex_path_extension extension,
89 // On cygwin, we may need windows or posix style paths.
90 string path = os::latex_path(original_path);
91 path = subst(path, "~", "\\string~");
92 if (path.find(' ') != string::npos) {
93 // We can't use '"' because " is sometimes active (e.g. if
94 // babel is loaded with the "german" option)
95 if (extension == EXCLUDE_EXTENSION) {
96 // ChangeExtension calls os::internal_path internally
97 // so don't use it to remove the extension.
98 string const ext = getExtension(path);
99 string const base = ext.empty() ?
101 path.substr(0, path.length() - ext.length() - 1);
102 // ChangeExtension calls os::internal_path internally
103 // so don't use it to re-add the extension.
104 path = "\\string\"" + base + "\\string\"." + ext;
106 path = "\\string\"" + path + "\\string\"";
110 return dots == ESCAPE_DOTS ? subst(path, ".", "\\lyxdot ") : path;
114 // Substitutes spaces with underscores in filename (and path)
115 string const makeLatexName(string const & file)
117 string name = onlyFilename(file);
118 string const path = onlyPath(file);
120 for (string::size_type i = 0; i < name.length(); ++i)
121 name[i] &= 0x7f; // set 8th bit to 0
123 // ok so we scan through the string twice, but who cares.
124 string const keep = "abcdefghijklmnopqrstuvwxyz"
125 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
126 "@!\"'()*+,-./0123456789:;<=>?[]`|";
128 string::size_type pos = 0;
129 while ((pos = name.find_first_not_of(keep, pos)) != string::npos)
132 return addName(path, name);
136 string const quoteName(string const & name, quote_style style)
140 // This does not work for filenames containing " (windows)
141 // or ' (all other OSes). This can't be changed easily, since
142 // we would need to adapt the command line parser in
143 // Forkedcall::generateChild. Therefore we don't pass user
144 // filenames to child processes if possible. We store them in
145 // a python script instead, where we don't have these
147 return (os::shell() == os::UNIX) ?
151 return "\"" + subst(subst(name, "\\", "\\\\"), "\"", "\\\"")
154 // shut up stupid compiler
159 bool isFileReadable(FileName const & filename)
161 std::string const path = filename.toFilesystemEncoding();
162 return fs::exists(path) && !fs::is_directory(path) && fs::is_readable(path);
166 //returns true: dir writeable
167 // false: not writeable
168 bool isDirWriteable(string const & path)
170 lyxerr[Debug::FILES] << "isDirWriteable: " << path << endl;
172 string const tmpfl = tempName(path, "lyxwritetest");
177 unlink(FileName(tmpfl));
182 // Uses a string of paths separated by ";"s to find a file to open.
183 // Can't cope with pathnames with a ';' in them. Returns full path to file.
184 // If path entry begins with $$LyX/, use system_lyxdir
185 // If path entry begins with $$User/, use user_lyxdir
186 // Example: "$$User/doc;$$LyX/doc"
187 FileName const fileOpenSearch(string const & path, string const & name,
192 bool notfound = true;
193 string tmppath = split(path, path_element, ';');
195 while (notfound && !path_element.empty()) {
196 path_element = os::internal_path(path_element);
197 if (!suffixIs(path_element, '/'))
199 path_element = subst(path_element, "$$LyX",
200 package().system_support());
201 path_element = subst(path_element, "$$User",
202 package().user_support());
204 real_file = fileSearch(path_element, name, ext);
206 if (real_file.empty()) {
208 tmppath = split(tmppath, path_element, ';');
209 } while (!tmppath.empty() && path_element.empty());
218 /// Returns a vector of all files in directory dir having extension ext.
219 vector<string> const dirList(FileName const & dir, string const & ext)
221 // EXCEPTIONS FIXME. Rewrite needed when we turn on exceptions. (Lgb)
222 vector<string> dirlist;
224 string const encoded_dir = dir.toFilesystemEncoding();
225 if (!(fs::exists(encoded_dir) && fs::is_directory(encoded_dir))) {
227 << "Directory \"" << dir
228 << "\" does not exist to DirList." << endl;
233 if (!ext.empty() && ext[0] != '.')
237 fs::directory_iterator dit(encoded_dir);
238 fs::directory_iterator end;
239 for (; dit != end; ++dit) {
240 string const & fil = dit->leaf();
241 if (suffixIs(fil, extension)) {
242 // FIXME UNICODE: We need to convert from filesystem encoding to utf8
243 dirlist.push_back(fil);
250 // Returns the real name of file name in directory path, with optional
252 FileName const fileSearch(string const & path, string const & name,
255 // if `name' is an absolute path, we ignore the setting of `path'
256 // Expand Environmentvariables in 'name'
257 string const tmpname = replaceEnvironmentPath(name);
258 FileName fullname(makeAbsPath(tmpname, path));
259 // search first without extension, then with it.
260 if (isFileReadable(fullname))
264 fullname = FileName(changeExtension(fullname.absFilename(), ext));
265 return isFileReadable(fullname) ? fullname : FileName();
269 // Search the file name.ext in the subdirectory dir of
271 // 2) build_lyxdir (if not empty)
273 FileName const libFileSearch(string const & dir, string const & name,
276 FileName fullname = fileSearch(addPath(package().user_support(), dir),
278 if (!fullname.empty())
281 if (!package().build_support().empty())
282 fullname = fileSearch(addPath(package().build_support(), dir),
284 if (!fullname.empty())
287 return fileSearch(addPath(package().system_support(), dir), name, ext);
291 FileName const i18nLibFileSearch(string const & dir, string const & name,
294 // the following comments are from intl/dcigettext.c. We try
295 // to mimick this behaviour here.
296 /* The highest priority value is the `LANGUAGE' environment
297 variable. But we don't use the value if the currently
298 selected locale is the C locale. This is a GNU extension. */
299 /* [Otherwise] We have to proceed with the POSIX methods of
300 looking to `LC_ALL', `LC_xxx', and `LANG'. */
302 string lang = getEnv("LC_ALL");
304 lang = getEnv("LC_MESSAGES");
306 lang = getEnv("LANG");
312 string const language = getEnv("LANGUAGE");
313 if (lang != "C" && lang != "POSIX" && !language.empty())
317 lang = split(lang, l, ':');
318 while (!l.empty() && l != "C" && l != "POSIX") {
319 FileName const tmp = libFileSearch(dir,
320 token(l, '_', 0) + '_' + name,
324 lang = split(lang, l, ':');
327 return libFileSearch(dir, name, ext);
331 string const libScriptSearch(string const & command_in, quote_style style)
333 static string const token_scriptpath = "$$s/";
335 string command = command_in;
336 // Find the starting position of "$$s/"
337 string::size_type const pos1 = command.find(token_scriptpath);
338 if (pos1 == string::npos)
340 // Find the end of the "$$s/some_subdir/some_script" word within
341 // command. Assumes that the script name does not contain spaces.
342 string::size_type const start_script = pos1 + 4;
343 string::size_type const pos2 = command.find(' ', start_script);
344 string::size_type const size_script = pos2 == string::npos?
345 (command.size() - start_script) : pos2 - start_script;
347 // Does this script file exist?
348 string const script =
349 libFileSearch(".", command.substr(start_script, size_script)).absFilename();
351 if (script.empty()) {
352 // Replace "$$s/" with ""
353 command.erase(pos1, 4);
355 // Replace "$$s/foo/some_script" with "<path to>/some_script".
356 string::size_type const size_replace = size_script + 4;
357 command.replace(pos1, size_replace, quoteName(script, style));
366 FileName const createTmpDir(FileName const & tempdir, string const & mask)
369 << "createTmpDir: tempdir=`" << tempdir << "'\n"
370 << "createTmpDir: mask=`" << mask << '\'' << endl;
372 string const tmpfl = tempName(tempdir.absFilename(), mask);
373 // lyx::tempName actually creates a file to make sure that it
374 // stays unique. So we have to delete it before we can create
375 // a dir with the same name. Note also that we are not thread
376 // safe because of the gap between unlink and mkdir. (Lgb)
377 unlink(FileName(tmpfl));
379 if (tmpfl.empty() || mkdir(FileName(tmpfl), 0700)) {
380 lyxerr << "LyX could not create the temporary directory '"
381 << tmpfl << "'" << endl;
385 return FileName(tmpfl);
391 bool destroyDir(FileName const & tmpdir)
394 return fs::remove_all(tmpdir.toFilesystemEncoding()) > 0;
395 } catch (fs::filesystem_error const & fe){
396 lyxerr << "Could not delete " << tmpdir << ". (" << fe.what() << ")" << std::endl;
402 string const createBufferTmpDir()
405 // We are in our own directory. Why bother to mangle name?
406 // In fact I wrote this code to circumvent a problematic behaviour
407 // (bug?) of EMX mkstemp().
409 package().temp_dir() + "/lyx_tmpbuf" +
410 convert<string>(count++);
412 if (mkdir(FileName(tmpfl), 0777)) {
413 lyxerr << "LyX could not create the temporary directory '"
414 << tmpfl << "'" << endl;
421 FileName const createLyXTmpDir(FileName const & deflt)
423 if (!deflt.empty() && deflt.absFilename() != "/tmp") {
424 if (mkdir(deflt, 0777)) {
425 if (isDirWriteable(deflt.absFilename())) {
426 // deflt could not be created because it
427 // did exist already, so let's create our own
429 return createTmpDir(deflt, "lyx_tmpdir");
431 // some other error occured.
432 return createTmpDir(FileName("/tmp"), "lyx_tmpdir");
437 return createTmpDir(FileName("/tmp"), "lyx_tmpdir");
442 bool createDirectory(string const & path, int permission)
444 string temp = rtrim(os::internal_path(path), "/");
445 BOOST_ASSERT(!temp.empty());
446 return mkdir(FileName(temp), permission) == 0;
450 // Strip filename from path name
451 string const onlyPath(string const & filename)
453 // If empty filename, return empty
454 if (filename.empty())
457 // Find last / or start of filename
458 string::size_type j = filename.rfind('/');
459 return j == string::npos ? "./" : filename.substr(0, j + 1);
463 // Convert relative path into absolute path based on a basepath.
464 // If relpath is absolute, just use that.
465 // If basepath is empty, use CWD as base.
466 string const makeAbsPath(string const & relPath, string const & basePath)
468 // checks for already absolute path
469 if (os::is_absolute_path(relPath))
472 // Copies given paths
473 string tempRel = os::internal_path(relPath);
474 // Since TempRel is NOT absolute, we can safely replace "//" with "/"
475 tempRel = subst(tempRel, "//", "/");
479 if (os::is_absolute_path(basePath))
482 tempBase = addPath(getcwd(), basePath);
484 // Handle /./ at the end of the path
485 while (suffixIs(tempBase, "/./"))
486 tempBase.erase(tempBase.length() - 2);
488 // processes relative path
489 string rTemp = tempRel;
492 while (!rTemp.empty()) {
494 rTemp = split(rTemp, temp, '/');
496 if (temp == ".") continue;
498 // Remove one level of TempBase
499 string::difference_type i = tempBase.length() - 2;
502 while (i > 0 && tempBase[i] != '/')
505 tempBase.erase(i, string::npos);
508 } else if (temp.empty() && !rTemp.empty()) {
509 tempBase = os::current_root() + rTemp;
512 // Add this piece to TempBase
513 if (!suffixIs(tempBase, '/'))
519 // returns absolute path
520 return os::internal_path(tempBase);
524 // Correctly append filename to the pathname.
525 // If pathname is '.', then don't use pathname.
526 // Chops any path of filename.
527 string const addName(string const & path, string const & fname)
529 string const basename = onlyFilename(fname);
532 if (path != "." && path != "./" && !path.empty()) {
533 buf = os::internal_path(path);
534 if (!suffixIs(path, '/'))
538 return buf + basename;
542 // Strips path from filename
543 string const onlyFilename(string const & fname)
548 string::size_type j = fname.rfind('/');
549 if (j == string::npos) // no '/' in fname
553 return fname.substr(j + 1);
557 /// Returns true is path is absolute
558 bool absolutePath(string const & path)
560 return os::is_absolute_path(path);
564 // Create absolute path. If impossible, don't do anything
565 // Supports ./ and ~/. Later we can add support for ~logname/. (Asger)
566 string const expandPath(string const & path)
568 // checks for already absolute path
569 string rTemp = replaceEnvironmentPath(path);
570 if (os::is_absolute_path(rTemp))
574 string const copy = rTemp;
577 rTemp = split(rTemp, temp, '/');
580 return getcwd() + '/' + rTemp;
583 return package().home_dir() + '/' + rTemp;
586 return makeAbsPath(copy);
588 // Don't know how to handle this
593 // Normalize a path. Constracts path/../path
594 // Can't handle "../../" or "/../" (Asger)
595 // Also converts paths like /foo//bar ==> /foo/bar
596 string const normalizePath(string const & path)
598 // Normalize paths like /foo//bar ==> /foo/bar
599 static boost::regex regex("/{2,}");
600 string const tmppath = boost::regex_merge(path, regex, "/");
602 fs::path const npath = fs::path(tmppath, fs::no_check).normalize();
604 if (!npath.is_complete())
605 return "./" + npath.string() + '/';
607 return npath.string() + '/';
611 string const getFileContents(FileName const & fname)
613 string const encodedname = fname.toFilesystemEncoding();
614 if (fs::exists(encodedname)) {
615 ifstream ifs(encodedname.c_str());
623 lyxerr << "LyX was not able to read file '" << fname << '\'' << endl;
628 // Search the string for ${VAR} and $VAR and replace VAR using getenv.
629 string const replaceEnvironmentPath(string const & path)
631 // ${VAR} is defined as
632 // $\{[A-Za-z_][A-Za-z_0-9]*\}
633 static string const envvar_br = "[$]\\{([A-Za-z_][A-Za-z_0-9]*)\\}";
635 // $VAR is defined as:
636 // $\{[A-Za-z_][A-Za-z_0-9]*\}
637 static string const envvar = "[$]([A-Za-z_][A-Za-z_0-9]*)";
639 static boost::regex envvar_br_re("(.*)" + envvar_br + "(.*)");
640 static boost::regex envvar_re("(.*)" + envvar + "(.*)");
643 string result = path;
645 regex_match(result, what, envvar_br_re);
646 if (!what[0].matched) {
647 regex_match(result, what, envvar_re);
648 if (!what[0].matched)
651 result = what.str(1) + getEnv(what.str(2)) + what.str(3);
657 // Make relative path out of two absolute paths
658 string const makeRelPath(string const & abspath, string const & basepath)
659 // Makes relative path out of absolute path. If it is deeper than basepath,
660 // it's easy. If basepath and abspath share something (they are all deeper
661 // than some directory), it'll be rendered using ..'s. If they are completely
662 // different, then the absolute path will be used as relative path.
664 string::size_type const abslen = abspath.length();
665 string::size_type const baselen = basepath.length();
667 string::size_type i = os::common_path(abspath, basepath);
670 // actually no match - cannot make it relative
674 // Count how many dirs there are in basepath above match
675 // and append as many '..''s into relpath
677 string::size_type j = i;
678 while (j < baselen) {
679 if (basepath[j] == '/') {
680 if (j + 1 == baselen)
687 // Append relative stuff from common directory to abspath
688 if (abspath[i] == '/')
690 for (; i < abslen; ++i)
693 if (suffixIs(buf, '/'))
694 buf.erase(buf.length() - 1);
695 // Substitute empty with .
702 // Append sub-directory(ies) to a path in an intelligent way
703 string const addPath(string const & path, string const & path_2)
706 string const path2 = os::internal_path(path_2);
708 if (!path.empty() && path != "." && path != "./") {
709 buf = os::internal_path(path);
710 if (path[path.length() - 1] != '/')
714 if (!path2.empty()) {
715 string::size_type const p2start = path2.find_first_not_of('/');
716 string::size_type const p2end = path2.find_last_not_of('/');
717 string const tmp = path2.substr(p2start, p2end - p2start + 1);
725 Change extension of oldname to extension.
726 Strips path off if no_path == true.
727 If no extension on oldname, just appends.
729 string const changeExtension(string const & oldname, string const & extension)
731 string::size_type const last_slash = oldname.rfind('/');
732 string::size_type last_dot = oldname.rfind('.');
733 if (last_dot < last_slash && last_slash != string::npos)
734 last_dot = string::npos;
737 // Make sure the extension starts with a dot
738 if (!extension.empty() && extension[0] != '.')
739 ext= '.' + extension;
743 return os::internal_path(oldname.substr(0, last_dot) + ext);
747 string const removeExtension(string const & name)
749 return changeExtension(name, string());
753 /// Return the extension of the file (not including the .)
754 string const getExtension(string const & name)
756 string::size_type const last_slash = name.rfind('/');
757 string::size_type const last_dot = name.rfind('.');
758 if (last_dot != string::npos &&
759 (last_slash == string::npos || last_dot > last_slash))
760 return name.substr(last_dot + 1,
761 name.length() - (last_dot + 1));
767 // the different filetypes and what they contain in one of the first lines
768 // (dots are any characters). (Herbert 20020131)
771 // EPS %!PS-Adobe-3.0 EPSF...
778 // PBM P1... or P4 (B/W)
779 // PGM P2... or P5 (Grayscale)
780 // PPM P3... or P6 (color)
781 // PS %!PS-Adobe-2.0 or 1.0, no "EPSF"!
782 // SGI \001\332... (decimal 474)
784 // TIFF II... or MM...
786 // XPM /* XPM */ sometimes missing (f.ex. tgif-export)
787 // ...static char *...
788 // XWD \000\000\000\151 (0x00006900) decimal 105
790 // GZIP \037\213 http://www.ietf.org/rfc/rfc1952.txt
791 // ZIP PK... http://www.halyava.ru/document/ind_arch.htm
792 // Z \037\235 UNIX compress
794 string const getFormatFromContents(FileName const & filename)
797 if (filename.empty() || !isFileReadable(filename))
800 ifstream ifs(filename.toFilesystemEncoding().c_str());
802 // Couldn't open file...
806 static string const gzipStamp = "\037\213";
809 static string const zipStamp = "PK";
812 static string const compressStamp = "\037\235";
814 // Maximum strings to read
815 int const max_count = 50;
820 bool firstLine = true;
821 while ((count++ < max_count) && format.empty()) {
823 lyxerr[Debug::GRAPHICS]
824 << "filetools(getFormatFromContents)\n"
825 << "\tFile type not recognised before EOF!"
831 string const stamp = str.substr(0, 2);
832 if (firstLine && str.size() >= 2) {
833 // at first we check for a zipped file, because this
834 // information is saved in the first bytes of the file!
835 // also some graphic formats which save the information
836 // in the first line, too.
837 if (prefixIs(str, gzipStamp)) {
840 } else if (stamp == zipStamp) {
843 } else if (stamp == compressStamp) {
847 } else if (stamp == "BM") {
850 } else if (stamp == "\001\332") {
854 // Don't need to use str.at(0), str.at(1) because
855 // we already know that str.size() >= 2
856 } else if (str[0] == 'P') {
872 } else if ((stamp == "II") || (stamp == "MM")) {
875 } else if (prefixIs(str,"%TGIF")) {
878 } else if (prefixIs(str,"#FIG")) {
881 } else if (prefixIs(str,"GIF")) {
884 } else if (str.size() > 3) {
885 int const c = ((str[0] << 24) & (str[1] << 16) &
886 (str[2] << 8) & str[3]);
897 else if (contains(str,"EPSF"))
898 // dummy, if we have wrong file description like
899 // %!PS-Adobe-2.0EPSF"
902 else if (contains(str,"Grace"))
905 else if (contains(str,"JFIF"))
908 else if (contains(str,"%PDF"))
911 else if (contains(str,"PNG"))
914 else if (contains(str,"%!PS-Adobe")) {
917 if (contains(str,"EPSF"))
923 else if (contains(str,"_bits[]"))
926 else if (contains(str,"XPM") || contains(str, "static char *"))
929 else if (contains(str,"BITPIX"))
933 if (!format.empty()) {
934 lyxerr[Debug::GRAPHICS]
935 << "Recognised Fileformat: " << format << endl;
939 lyxerr[Debug::GRAPHICS]
940 << "filetools(getFormatFromContents)\n"
941 << "\tCouldn't find a known format!\n";
946 /// check for zipped file
947 bool zippedFile(FileName const & name)
949 string const type = getFormatFromContents(name);
950 if (contains("gzip zip compress", type) && !type.empty())
956 string const unzippedFileName(string const & zipped_file)
958 string const ext = getExtension(zipped_file);
959 if (ext == "gz" || ext == "z" || ext == "Z")
960 return changeExtension(zipped_file, string());
961 return "unzipped_" + zipped_file;
965 FileName const unzipFile(FileName const & zipped_file, string const & unzipped_file)
967 FileName const tempfile = FileName(unzipped_file.empty() ?
968 unzippedFileName(zipped_file.toFilesystemEncoding()) :
971 string const command = "gunzip -c " +
972 zipped_file.toFilesystemEncoding() + " > " +
973 tempfile.toFilesystemEncoding();
975 one.startscript(Systemcall::Wait, command);
976 // test that command was executed successfully (anon)
977 // yes, please do. (Lgb)
982 docstring const makeDisplayPath(string const & path, unsigned int threshold)
985 string const home = package().home_dir();
987 // replace /home/blah with ~/
988 if (!home.empty() && prefixIs(str, home))
989 str = subst(str, home, "~");
991 if (str.length() <= threshold)
992 return lyx::from_utf8(os::external_path(str));
994 string const prefix = ".../";
997 while (str.length() > threshold)
998 str = split(str, temp, '/');
1000 // Did we shorten everything away?
1002 // Yes, filename itself is too long.
1003 // Pick the start and the end of the filename.
1004 str = onlyFilename(path);
1005 string const head = str.substr(0, threshold / 2 - 3);
1007 string::size_type len = str.length();
1009 str.substr(len - threshold / 2 - 2, len - 1);
1010 str = head + "..." + tail;
1013 return lyx::from_utf8(os::external_path(prefix + str));
1017 bool readLink(string const & file, string & link, bool resolve)
1019 #ifdef HAVE_READLINK
1020 char linkbuffer[512];
1021 // Should be PATH_MAX but that needs autconf support
1022 int const nRead = ::readlink(file.c_str(),
1023 linkbuffer, sizeof(linkbuffer) - 1);
1026 linkbuffer[nRead] = '\0'; // terminator
1028 link = makeAbsPath(linkbuffer, onlyPath(file));
1038 cmd_ret const runCommand(string const & cmd)
1040 // FIXME: replace all calls to RunCommand with ForkedCall
1041 // (if the output is not needed) or the code in ispell.C
1042 // (if the output is needed).
1044 // One question is if we should use popen or
1045 // create our own popen based on fork, exec, pipe
1046 // of course the best would be to have a
1047 // pstream (process stream), with the
1048 // variants ipstream, opstream
1050 #if defined (HAVE_POPEN)
1051 FILE * inf = ::popen(cmd.c_str(), os::popen_read_mode());
1052 #elif defined (HAVE__POPEN)
1053 FILE * inf = ::_popen(cmd.c_str(), os::popen_read_mode());
1055 #error No popen() function.
1058 // (Claus Hentschel) Check if popen was succesful ;-)
1060 lyxerr << "RunCommand:: could not start child process" << endl;
1061 return make_pair(-1, string());
1067 ret += static_cast<char>(c);
1071 #if defined (HAVE_PCLOSE)
1072 int const pret = pclose(inf);
1073 #elif defined (HAVE__PCLOSE)
1074 int const pret = _pclose(inf);
1076 #error No pclose() function.
1080 perror("RunCommand:: could not terminate child process");
1082 return make_pair(pret, ret);
1086 FileName const findtexfile(string const & fil, string const & /*format*/)
1088 /* There is no problem to extend this function too use other
1089 methods to look for files. It could be setup to look
1090 in environment paths and also if wanted as a last resort
1091 to a recursive find. One of the easier extensions would
1092 perhaps be to use the LyX file lookup methods. But! I am
1093 going to implement this until I see some demand for it.
1097 // If the file can be found directly, we just return a
1098 // absolute path version of it.
1099 FileName const absfile(makeAbsPath(fil));
1100 if (fs::exists(absfile.toFilesystemEncoding()))
1103 // No we try to find it using kpsewhich.
1104 // It seems from the kpsewhich manual page that it is safe to use
1105 // kpsewhich without --format: "When the --format option is not
1106 // given, the search path used when looking for a file is inferred
1107 // from the name given, by looking for a known extension. If no
1108 // known extension is found, the search path for TeX source files
1110 // However, we want to take advantage of the format sine almost all
1111 // the different formats has environment variables that can be used
1112 // to controll which paths to search. f.ex. bib looks in
1113 // BIBINPUTS and TEXBIB. Small list follows:
1114 // bib - BIBINPUTS, TEXBIB
1116 // graphic/figure - TEXPICTS, TEXINPUTS
1117 // ist - TEXINDEXSTYLE, INDEXSTYLE
1118 // pk - PROGRAMFONTS, PKFONTS, TEXPKS, GLYPHFONTS, TEXFONTS
1120 // tfm - TFMFONTS, TEXFONTS
1121 // This means that to use kpsewhich in the best possible way we
1122 // should help it by setting additional path in the approp. envir.var.
1123 string const kpsecmd = "kpsewhich " + fil;
1125 cmd_ret const c = runCommand(kpsecmd);
1127 lyxerr[Debug::LATEX] << "kpse status = " << c.first << '\n'
1128 << "kpse result = `" << rtrim(c.second, "\n")
1131 return FileName(os::internal_path(rtrim(c.second, "\n\r")));
1137 void removeAutosaveFile(string const & filename)
1139 string a = onlyPath(filename);
1141 a += onlyFilename(filename);
1143 FileName const autosave(a);
1144 if (fs::exists(autosave.toFilesystemEncoding()))
1149 void readBB_lyxerrMessage(FileName const & file, bool & zipped,
1150 string const & message)
1152 lyxerr[Debug::GRAPHICS] << "[readBB_from_PSFile] "
1153 << message << std::endl;
1154 #ifdef WITH_WARNINGS
1155 #warning Why is this func deleting a file? (Lgb)
1162 string const readBB_from_PSFile(FileName const & file)
1164 // in a (e)ps-file it's an entry like %%BoundingBox:23 45 321 345
1165 // It seems that every command in the header has an own line,
1166 // getline() should work for all files.
1167 // On the other hand some plot programs write the bb at the
1168 // end of the file. Than we have in the header:
1169 // %%BoundingBox: (atend)
1170 // In this case we must check the end.
1171 bool zipped = zippedFile(file);
1172 FileName const file_ = zipped ? unzipFile(file) : file;
1173 string const format = getFormatFromContents(file_);
1175 if (format != "eps" && format != "ps") {
1176 readBB_lyxerrMessage(file_, zipped,"no(e)ps-format");
1180 static boost::regex bbox_re(
1181 "^%%BoundingBox:\\s*([[:digit:]]+)\\s+([[:digit:]]+)\\s+([[:digit:]]+)\\s+([[:digit:]]+)");
1182 std::ifstream is(file_.toFilesystemEncoding().c_str());
1187 if (regex_match(s, what, bbox_re)) {
1188 // Our callers expect the tokens in the string
1189 // separated by single spaces.
1190 // FIXME: change return type from string to something
1193 os << what.str(1) << ' ' << what.str(2) << ' '
1194 << what.str(3) << ' ' << what.str(4);
1195 string const bb = os.str();
1196 readBB_lyxerrMessage(file_, zipped, bb);
1200 readBB_lyxerrMessage(file_, zipped, "no bb found");
1205 int compare_timestamps(FileName const & filename1, FileName const & filename2)
1207 // If the original is newer than the copy, then copy the original
1208 // to the new directory.
1210 string const file1 = filename1.toFilesystemEncoding();
1211 string const file2 = filename2.toFilesystemEncoding();
1213 if (fs::exists(file1) && fs::exists(file2)) {
1214 double const tmp = difftime(fs::last_write_time(file1),
1215 fs::last_write_time(file2));
1217 cmp = tmp > 0 ? 1 : -1;
1219 } else if (fs::exists(file1)) {
1221 } else if (fs::exists(file2)) {
1228 } //namespace support