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 string path = subst(original_path, "\\", "/");
90 // On cygwin, we may need windows or posix style paths.
91 path = os::latex_path(path);
92 path = subst(path, "~", "\\string~");
93 if (path.find(' ') != string::npos) {
94 // We can't use '"' because " is sometimes active (e.g. if
95 // babel is loaded with the "german" option)
96 if (extension == EXCLUDE_EXTENSION) {
97 string const base = ChangeExtension(path, string());
98 string const ext = GetExtension(path);
99 // ChangeExtension calls os::internal_path internally
100 // so don't use it to re-add the extension.
101 path = "\\string\"" + base + "\\string\"." + ext;
103 path = "\\string\"" + path + "\\string\"";
107 return dots == ESCAPE_DOTS ? subst(path, ".", "\\lyxdot ") : path;
111 // Substitutes spaces with underscores in filename (and path)
112 string const MakeLatexName(string const & file)
114 string name = OnlyFilename(file);
115 string const path = OnlyPath(file);
117 for (string::size_type i = 0; i < name.length(); ++i)
118 name[i] &= 0x7f; // set 8th bit to 0
120 // ok so we scan through the string twice, but who cares.
121 string const keep = "abcdefghijklmnopqrstuvwxyz"
122 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
123 "@!\"'()*+,-./0123456789:;<=>?[]`|";
125 string::size_type pos = 0;
126 while ((pos = name.find_first_not_of(keep, pos)) != string::npos)
129 return AddName(path, name);
133 string const QuoteName(string const & name)
135 return (os::shell() == os::UNIX) ?
141 // Is a file readable ?
142 bool IsFileReadable(string const & path)
144 return fs::exists(path) && !fs::is_directory(path) && fs::is_readable(path);
148 //returns true: dir writeable
149 // false: not writeable
150 bool IsDirWriteable(string const & path)
152 lyxerr[Debug::FILES] << "IsDirWriteable: " << path << endl;
154 string const tmpfl = tempName(path, "lyxwritetest");
164 // Uses a string of paths separated by ";"s to find a file to open.
165 // Can't cope with pathnames with a ';' in them. Returns full path to file.
166 // If path entry begins with $$LyX/, use system_lyxdir
167 // If path entry begins with $$User/, use user_lyxdir
168 // Example: "$$User/doc;$$LyX/doc"
169 string const FileOpenSearch(string const & path, string const & name,
174 bool notfound = true;
175 string tmppath = split(path, path_element, ';');
177 while (notfound && !path_element.empty()) {
178 path_element = os::internal_path(path_element);
179 if (!suffixIs(path_element, '/'))
181 path_element = subst(path_element, "$$LyX",
182 package().system_support());
183 path_element = subst(path_element, "$$User",
184 package().user_support());
186 real_file = FileSearch(path_element, name, ext);
188 if (real_file.empty()) {
190 tmppath = split(tmppath, path_element, ';');
191 } while (!tmppath.empty() && path_element.empty());
197 if (ext.empty() && notfound) {
198 real_file = FileOpenSearch(path, name, "exe");
199 if (notfound) real_file = FileOpenSearch(path, name, "cmd");
206 /// Returns a vector of all files in directory dir having extension ext.
207 vector<string> const DirList(string const & dir, string const & ext)
209 // EXCEPTIONS FIXME. Rewrite needed when we turn on exceptions. (Lgb)
210 vector<string> dirlist;
212 if (!(fs::exists(dir) && fs::is_directory(dir))) {
214 << "Directory \"" << dir
215 << "\" does not exist to DirList." << endl;
220 if (!ext.empty() && ext[0] != '.')
224 fs::directory_iterator dit(dir);
225 fs::directory_iterator end;
226 for (; dit != end; ++dit) {
227 string const & fil = dit->leaf();
228 if (suffixIs(fil, extension)) {
229 dirlist.push_back(fil);
236 // Returns the real name of file name in directory path, with optional
238 string const FileSearch(string const & path, string const & name,
241 // if `name' is an absolute path, we ignore the setting of `path'
242 // Expand Environmentvariables in 'name'
243 string const tmpname = ReplaceEnvironmentPath(name);
244 string fullname = MakeAbsPath(tmpname, path);
245 // search first without extension, then with it.
246 if (IsFileReadable(fullname))
250 // Is it not more reasonable to use ChangeExtension()? (SMiyata)
253 return IsFileReadable(fullname) ? fullname : string();
257 // Search the file name.ext in the subdirectory dir of
259 // 2) build_lyxdir (if not empty)
261 string const LibFileSearch(string const & dir, string const & name,
264 string fullname = FileSearch(AddPath(package().user_support(), dir),
266 if (!fullname.empty())
269 if (!package().build_support().empty())
270 fullname = FileSearch(AddPath(package().build_support(), dir),
272 if (!fullname.empty())
275 return FileSearch(AddPath(package().system_support(), dir), name, ext);
279 string const i18nLibFileSearch(string const & dir, string const & name,
282 // the following comments are from intl/dcigettext.c. We try
283 // to mimick this behaviour here.
284 /* The highest priority value is the `LANGUAGE' environment
285 variable. But we don't use the value if the currently
286 selected locale is the C locale. This is a GNU extension. */
287 /* [Otherwise] We have to proceed with the POSIX methods of
288 looking to `LC_ALL', `LC_xxx', and `LANG'. */
290 string lang = getEnv("LC_ALL");
292 lang = getEnv("LC_MESSAGES");
294 lang = getEnv("LANG");
300 string const language = getEnv("LANGUAGE");
301 if (lang != "C" && lang != "POSIX" && !language.empty())
305 lang = split(lang, l, ':');
306 while (!l.empty() && l != "C" && l != "POSIX") {
307 string const tmp = LibFileSearch(dir,
308 token(l, '_', 0) + '_' + name,
312 lang = split(lang, l, ':');
315 return LibFileSearch(dir, name, ext);
319 string const LibScriptSearch(string const & command_in)
321 static string const token_scriptpath = "$$s/";
323 string command = command_in;
324 // Find the starting position of "$$s/"
325 string::size_type const pos1 = command.find(token_scriptpath);
326 if (pos1 == string::npos)
328 // Find the end of the "$$s/some_subdir/some_script" word within
329 // command. Assumes that the script name does not contain spaces.
330 string::size_type const start_script = pos1 + 4;
331 string::size_type const pos2 = command.find(' ', start_script);
332 string::size_type const size_script = pos2 == string::npos?
333 (command.size() - start_script) : pos2 - start_script;
335 // Does this script file exist?
336 string const script =
337 LibFileSearch(".", command.substr(start_script, size_script));
339 if (script.empty()) {
340 // Replace "$$s/" with ""
341 command.erase(pos1, 4);
343 // Replace "$$s/foo/some_script" with "<path to>/some_script".
344 string::size_type const size_replace = size_script + 4;
345 command.replace(pos1, size_replace, QuoteName(script));
354 string const createTmpDir(string const & tempdir, string const & mask)
357 << "createTmpDir: tempdir=`" << tempdir << "'\n"
358 << "createTmpDir: mask=`" << mask << '\'' << endl;
360 string const tmpfl = tempName(tempdir, mask);
361 // lyx::tempName actually creates a file to make sure that it
362 // stays unique. So we have to delete it before we can create
363 // a dir with the same name. Note also that we are not thread
364 // safe because of the gap between unlink and mkdir. (Lgb)
367 if (tmpfl.empty() || mkdir(tmpfl, 0700)) {
368 lyxerr << "LyX could not create the temporary directory '"
369 << tmpfl << "'" << endl;
373 return MakeAbsPath(tmpfl);
379 bool destroyDir(string const & tmpdir)
383 Path p(user_lyxdir());
385 return fs::remove_all(tmpdir) > 0;
389 string const createBufferTmpDir()
392 // We are in our own directory. Why bother to mangle name?
393 // In fact I wrote this code to circumvent a problematic behaviour
394 // (bug?) of EMX mkstemp().
396 package().temp_dir() + "/lyx_tmpbuf" +
397 convert<string>(count++);
399 if (mkdir(tmpfl, 0777)) {
400 lyxerr << "LyX could not create the temporary directory '"
401 << tmpfl << "'" << endl;
408 string const createLyXTmpDir(string const & deflt)
410 if (!deflt.empty() && deflt != "/tmp") {
411 if (mkdir(deflt, 0777)) {
413 Path p(package().user_support());
415 if (IsDirWriteable(deflt)) {
416 // deflt could not be created because it
417 // did exist already, so let's create our own
419 return createTmpDir(deflt, "lyx_tmpdir");
421 // some other error occured.
422 return createTmpDir("/tmp", "lyx_tmpdir");
428 Path p(package().user_support());
430 return createTmpDir("/tmp", "lyx_tmpdir");
435 bool createDirectory(string const & path, int permission)
437 string temp = rtrim(os::internal_path(path), "/");
438 BOOST_ASSERT(!temp.empty());
439 return mkdir(temp, permission) == 0;
443 // Strip filename from path name
444 string const OnlyPath(string const & filename)
446 // If empty filename, return empty
447 if (filename.empty())
450 // Find last / or start of filename
451 string::size_type j = filename.rfind('/');
452 return j == string::npos ? "./" : filename.substr(0, j + 1);
456 // Convert relative path into absolute path based on a basepath.
457 // If relpath is absolute, just use that.
458 // If basepath is empty, use CWD as base.
459 string const MakeAbsPath(string const & RelPath, string const & BasePath)
461 // checks for already absolute path
462 if (os::is_absolute_path(RelPath))
465 // Copies given paths
466 string TempRel = os::internal_path(RelPath);
467 // Since TempRel is NOT absolute, we can safely replace "//" with "/"
468 TempRel = subst(TempRel, "//", "/");
472 if (os::is_absolute_path(BasePath))
475 TempBase = AddPath(getcwd(), BasePath);
477 // Handle /./ at the end of the path
478 while (suffixIs(TempBase, "/./"))
479 TempBase.erase(TempBase.length() - 2);
481 // processes relative path
482 string RTemp = TempRel;
485 while (!RTemp.empty()) {
487 RTemp = split(RTemp, Temp, '/');
489 if (Temp == ".") continue;
491 // Remove one level of TempBase
492 string::difference_type i = TempBase.length() - 2;
496 while (i > 0 && TempBase[i] != '/')
502 while (i > 2 && TempBase[i] != '/')
506 TempBase.erase(i, string::npos);
509 } else if (Temp.empty() && !RTemp.empty()) {
510 TempBase = os::current_root() + RTemp;
513 // Add this piece to TempBase
514 if (!suffixIs(TempBase, '/'))
520 // returns absolute path
521 return os::internal_path(TempBase);
525 // Correctly append filename to the pathname.
526 // If pathname is '.', then don't use pathname.
527 // Chops any path of filename.
528 string const AddName(string const & path, string const & fname)
530 string const basename = OnlyFilename(fname);
533 if (path != "." && path != "./" && !path.empty()) {
534 buf = os::internal_path(path);
535 if (!suffixIs(path, '/'))
539 return buf + basename;
543 // Strips path from filename
544 string const OnlyFilename(string const & fname)
549 string::size_type j = fname.rfind('/');
550 if (j == string::npos) // no '/' in fname
554 return fname.substr(j + 1);
558 /// Returns true is path is absolute
559 bool AbsolutePath(string const & path)
561 return os::is_absolute_path(path);
565 // Create absolute path. If impossible, don't do anything
566 // Supports ./ and ~/. Later we can add support for ~logname/. (Asger)
567 string const ExpandPath(string const & path)
569 // checks for already absolute path
570 string RTemp = ReplaceEnvironmentPath(path);
571 if (os::is_absolute_path(RTemp))
575 string const copy = RTemp;
578 RTemp = split(RTemp, Temp, '/');
581 return getcwd() + '/' + RTemp;
584 return package().home_dir() + '/' + RTemp;
587 return MakeAbsPath(copy);
589 // Don't know how to handle this
594 // Normalize a path. Constracts path/../path
595 // Can't handle "../../" or "/../" (Asger)
596 // Also converts paths like /foo//bar ==> /foo/bar
597 string const NormalizePath(string const & path)
599 // Normalize paths like /foo//bar ==> /foo/bar
600 static boost::regex regex("/{2,}");
601 string const tmppath = boost::regex_merge(path, regex, "/");
603 fs::path const npath = fs::path(tmppath, fs::no_check).normalize();
605 if (!npath.is_complete())
606 return "./" + npath.string() + '/';
608 return npath.string() + '/';
612 string const GetFileContents(string const & fname)
614 if (fs::exists(fname)) {
615 ifstream ifs(fname.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(string const & filename)
797 if (filename.empty() || !IsFileReadable(filename))
800 ifstream ifs(filename.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(string 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 string const unzipFile(string const & zipped_file, string const & unzipped_file)
967 string const tempfile = unzipped_file.empty() ?
968 unzippedFileName(zipped_file) : unzipped_file;
970 string const command = "gunzip -c " + zipped_file + " > " + tempfile;
972 one.startscript(Systemcall::Wait, command);
973 // test that command was executed successfully (anon)
974 // yes, please do. (Lgb)
979 string const MakeDisplayPath(string const & path, unsigned int threshold)
982 string const home = package().home_dir();
984 // replace /home/blah with ~/
985 if (!home.empty() && prefixIs(str, home))
986 str = subst(str, home, "~");
988 if (str.length() <= threshold)
989 return os::external_path(str);
991 string const prefix = ".../";
994 while (str.length() > threshold)
995 str = split(str, temp, '/');
997 // Did we shorten everything away?
999 // Yes, filename itself is too long.
1000 // Pick the start and the end of the filename.
1001 str = OnlyFilename(path);
1002 string const head = str.substr(0, threshold / 2 - 3);
1004 string::size_type len = str.length();
1006 str.substr(len - threshold / 2 - 2, len - 1);
1007 str = head + "..." + tail;
1010 return os::external_path(prefix + str);
1014 bool LyXReadLink(string const & file, string & link, bool resolve)
1016 #ifdef HAVE_READLINK
1017 char linkbuffer[512];
1018 // Should be PATH_MAX but that needs autconf support
1019 int const nRead = ::readlink(file.c_str(),
1020 linkbuffer, sizeof(linkbuffer) - 1);
1023 linkbuffer[nRead] = '\0'; // terminator
1025 link = MakeAbsPath(linkbuffer, OnlyPath(file));
1035 cmd_ret const RunCommand(string const & cmd)
1037 // FIXME: replace all calls to RunCommand with ForkedCall
1038 // (if the output is not needed) or the code in ispell.C
1039 // (if the output is needed).
1041 // One question is if we should use popen or
1042 // create our own popen based on fork, exec, pipe
1043 // of course the best would be to have a
1044 // pstream (process stream), with the
1045 // variants ipstream, opstream
1047 #if defined (HAVE_POPEN)
1048 FILE * inf = ::popen(cmd.c_str(), os::popen_read_mode());
1049 #elif defined (HAVE__POPEN)
1050 FILE * inf = ::_popen(cmd.c_str(), os::popen_read_mode());
1052 #error No popen() function.
1055 // (Claus Hentschel) Check if popen was succesful ;-)
1057 lyxerr << "RunCommand:: could not start child process" << endl;
1058 return make_pair(-1, string());
1064 ret += static_cast<char>(c);
1068 #if defined (HAVE_PCLOSE)
1069 int const pret = pclose(inf);
1070 #elif defined (HAVE__PCLOSE)
1071 int const pret = _pclose(inf);
1073 #error No pclose() function.
1077 perror("RunCommand:: could not terminate child process");
1079 return make_pair(pret, ret);
1083 string const findtexfile(string const & fil, string const & /*format*/)
1085 /* There is no problem to extend this function too use other
1086 methods to look for files. It could be setup to look
1087 in environment paths and also if wanted as a last resort
1088 to a recursive find. One of the easier extensions would
1089 perhaps be to use the LyX file lookup methods. But! I am
1090 going to implement this until I see some demand for it.
1094 // If the file can be found directly, we just return a
1095 // absolute path version of it.
1096 if (fs::exists(fil))
1097 return MakeAbsPath(fil);
1099 // No we try to find it using kpsewhich.
1100 // It seems from the kpsewhich manual page that it is safe to use
1101 // kpsewhich without --format: "When the --format option is not
1102 // given, the search path used when looking for a file is inferred
1103 // from the name given, by looking for a known extension. If no
1104 // known extension is found, the search path for TeX source files
1106 // However, we want to take advantage of the format sine almost all
1107 // the different formats has environment variables that can be used
1108 // to controll which paths to search. f.ex. bib looks in
1109 // BIBINPUTS and TEXBIB. Small list follows:
1110 // bib - BIBINPUTS, TEXBIB
1112 // graphic/figure - TEXPICTS, TEXINPUTS
1113 // ist - TEXINDEXSTYLE, INDEXSTYLE
1114 // pk - PROGRAMFONTS, PKFONTS, TEXPKS, GLYPHFONTS, TEXFONTS
1116 // tfm - TFMFONTS, TEXFONTS
1117 // This means that to use kpsewhich in the best possible way we
1118 // should help it by setting additional path in the approp. envir.var.
1119 string const kpsecmd = "kpsewhich " + fil;
1121 cmd_ret const c = RunCommand(kpsecmd);
1123 lyxerr[Debug::LATEX] << "kpse status = " << c.first << '\n'
1124 << "kpse result = `" << rtrim(c.second, "\n")
1127 return os::internal_path(rtrim(c.second, "\n\r"));
1133 void removeAutosaveFile(string const & filename)
1135 string a = OnlyPath(filename);
1137 a += OnlyFilename(filename);
1144 void readBB_lyxerrMessage(string const & file, bool & zipped,
1145 string const & message)
1147 lyxerr[Debug::GRAPHICS] << "[readBB_from_PSFile] "
1148 << message << std::endl;
1149 #ifdef WITH_WARNINGS
1150 #warning Why is this func deleting a file? (Lgb)
1157 string const readBB_from_PSFile(string const & file)
1159 // in a (e)ps-file it's an entry like %%BoundingBox:23 45 321 345
1160 // It seems that every command in the header has an own line,
1161 // getline() should work for all files.
1162 // On the other hand some plot programs write the bb at the
1163 // end of the file. Than we have in the header:
1164 // %%BoundingBox: (atend)
1165 // In this case we must check the end.
1166 bool zipped = zippedFile(file);
1167 string const file_ = zipped ? unzipFile(file) : file;
1168 string const format = getFormatFromContents(file_);
1170 if (format != "eps" && format != "ps") {
1171 readBB_lyxerrMessage(file_, zipped,"no(e)ps-format");
1175 std::ifstream is(file_.c_str());
1179 if (contains(s,"%%BoundingBox:") && !contains(s,"atend")) {
1180 string const bb = ltrim(s.substr(14));
1181 readBB_lyxerrMessage(file_, zipped, bb);
1185 readBB_lyxerrMessage(file_, zipped, "no bb found");
1190 int compare_timestamps(string const & file1, string const & file2)
1192 BOOST_ASSERT(AbsolutePath(file1));
1193 BOOST_ASSERT(AbsolutePath(file2));
1195 // If the original is newer than the copy, then copy the original
1196 // to the new directory.
1199 if (fs::exists(file1) && fs::exists(file2)) {
1200 double const tmp = difftime(fs::last_write_time(file1),
1201 fs::last_write_time(file2));
1203 cmp = tmp > 0 ? 1 : -1;
1205 } else if (fs::exists(file1)) {
1207 } else if (fs::exists(file2)) {
1214 } //namespace support