2 filetools.C (former paths.C) - part of LyX project
3 General path-mangling functions
4 Copyright 1996 Ivan Schreter
5 Parts Copyright 1996 Dirk Niggemann
6 Parts Copyright 1985, 1990, 1993 Free Software Foundation, Inc.
7 Parts Copyright 1996 Asger Alstrup
11 lyx-filetool.C : tools functions for file/path handling
12 this file is part of LyX, the High Level Word Processor
13 Copyright 1995-1996, Matthias Ettrich and the LyX Team
27 #pragma implementation "filetools.h"
34 #include "support/lstrings.h"
36 #include "filetools.h"
37 #include "LSubstring.h"
38 #include "lyx_gui_misc.h"
40 #include "support/path.h" // I know it's OS/2 specific (SMiyata)
45 // Which part of this is still necessary? (JMarc).
48 # define NAMLEN(dirent) strlen((dirent)->d_name)
50 # define dirent direct
51 # define NAMLEN(dirent) (dirent)->d_namlen
53 # include <sys/ndir.h>
69 extern string system_lyxdir;
70 extern string build_lyxdir;
71 extern string user_lyxdir;
72 extern string system_tempdir;
75 bool IsLyXFilename(string const & filename)
77 return suffixIs(lowercase(filename), ".lyx");
81 bool IsSGMLFilename(string const & filename)
83 return suffixIs(lowercase(filename), ".sgml");
87 // Substitutes spaces with underscores in filename (and path)
88 string const MakeLatexName(string const & file)
90 string name = OnlyFilename(file);
91 string const path = OnlyPath(file);
93 for (string::size_type i = 0; i < name.length(); ++i) {
94 name[i] &= 0x7f; // set 8th bit to 0
97 // ok so we scan through the string twice, but who cares.
98 string const keep("abcdefghijklmnopqrstuvwxyz"
99 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
100 "@!\"'()*+,-./0123456789:;<=>?[]`|");
102 string::size_type pos = 0;
103 while ((pos = name.find_first_not_of(keep, pos)) != string::npos) {
106 return AddName(path, name);
110 // Substitutes spaces with underscores in filename (and path)
111 string const QuoteName(string const & name)
113 return (os::shell() == os::UNIX) ?
119 // Is a file readable ?
120 bool IsFileReadable (string const & path)
123 if (file.isOK() && file.isRegular() && file.readable())
130 // Is a file read_only?
131 // return 1 read-write
133 // -1 error (doesn't exist, no access, anything else)
134 int IsFileWriteable (string const & path)
137 //lyxerr << "fi : " << fi << endl;
138 //lyxerr << "fi.exists" << fi.exist() << endl;
139 if (fi.access(FileInfo::wperm|FileInfo::rperm)) // read-write
141 if (fi.readable()) // read-only
143 return -1; // everything else.
147 //returns true: dir writeable
148 // false: not writeable
149 bool IsDirWriteable (string const & path)
151 lyxerr[Debug::FILES] << "IsDirWriteable: " << path << endl;
153 string const tmpfl(lyx::tempName(path, "lyxwritetest"));
163 // Uses a string of paths separated by ";"s to find a file to open.
164 // Can't cope with pathnames with a ';' in them. Returns full path to file.
165 // If path entry begins with $$LyX/, use system_lyxdir
166 // If path entry begins with $$User/, use user_lyxdir
167 // Example: "$$User/doc;$$LyX/doc"
168 string const FileOpenSearch (string const & path, string const & name,
171 string real_file, path_element;
172 bool notfound = true;
173 string tmppath = split(path, path_element, ';');
175 while (notfound && !path_element.empty()) {
176 path_element = os::slashify_path(path_element);
177 if (!suffixIs(path_element, '/'))
179 path_element = subst(path_element, "$$LyX", system_lyxdir);
180 path_element = subst(path_element, "$$User", user_lyxdir);
182 real_file = FileSearch(path_element, name, ext);
184 if (real_file.empty()) {
186 tmppath = split(tmppath, path_element, ';');
187 } while(!tmppath.empty() && path_element.empty());
193 if (ext.empty() && notfound) {
194 real_file = FileOpenSearch(path, name, "exe");
195 if (notfound) real_file = FileOpenSearch(path, name, "cmd");
202 /// Returns a vector of all files in directory dir having extension ext.
203 vector<string> const DirList(string const & dir, string const & ext)
205 // This is a non-error checking C/system implementation
206 string extension(ext);
207 if (!extension.empty() && extension[0] != '.')
208 extension.insert(0, ".");
209 vector<string> dirlist;
210 DIR * dirp = ::opendir(dir.c_str());
212 while ((dire = ::readdir(dirp))) {
213 string const fil = dire->d_name;
214 if (suffixIs(fil, extension)) {
215 dirlist.push_back(fil);
220 /* I would have prefered to take a vector<string>& as parameter so
221 that we could avoid the copy of the vector when returning.
223 dirlist.swap(argvec);
224 to avoid the copy. (Lgb)
226 /* A C++ implementaion will look like this:
227 string extension(ext);
228 if (extension[0] != '.') extension.insert(0, ".");
229 vector<string> dirlist;
230 directory_iterator dit("dir");
231 while (dit != directory_iterator()) {
232 string fil = dit->filename;
233 if (prefixIs(fil, extension)) {
234 dirlist.push_back(fil);
238 dirlist.swap(argvec);
244 // Returns the real name of file name in directory path, with optional
246 string const FileSearch(string const & path, string const & name,
249 // if `name' is an absolute path, we ignore the setting of `path'
250 // Expand Environmentvariables in 'name'
251 string const tmpname = ReplaceEnvironmentPath(name);
252 string fullname = MakeAbsPath(tmpname, path);
253 // search first without extension, then with it.
254 if (IsFileReadable(fullname))
256 else if (ext.empty())
258 else { // Is it not more reasonable to use ChangeExtension()? (SMiyata)
261 if (IsFileReadable(fullname))
269 // Search the file name.ext in the subdirectory dir of
271 // 2) build_lyxdir (if not empty)
273 string const LibFileSearch(string const & dir, string const & name,
276 string fullname = FileSearch(AddPath(user_lyxdir, dir), name, ext);
277 if (!fullname.empty())
280 if (!build_lyxdir.empty())
281 fullname = FileSearch(AddPath(build_lyxdir, dir), name, ext);
282 if (!fullname.empty())
285 return FileSearch(AddPath(system_lyxdir, dir), name, ext);
290 i18nLibFileSearch(string const & dir, string const & name,
293 // this comment is from intl/dcigettext.c. We try to mimick this
295 /* The highest priority value is the `LANGUAGE' environment
296 variable. But we don't use the value if the currently
297 selected locale is the C locale. This is a GNU extension. */
299 string const lc_all = GetEnv("LC_ALL");
300 string lang = GetEnv("LANGUAGE");
301 if (lang.empty() || lc_all == "C") {
304 lang = GetEnv("LANG");
308 lang = token(lang, '_', 0);
310 if (lang.empty() || lang == "C")
311 return LibFileSearch(dir, name, ext);
313 string const tmp = LibFileSearch(dir, lang + '_' + name,
318 return LibFileSearch(dir, name, ext);
323 string const GetEnv(string const & envname)
325 // f.ex. what about error checking?
326 char const * const ch = getenv(envname.c_str());
327 string const envstr = !ch ? "" : ch;
332 string const GetEnvPath(string const & name)
335 string const pathlist = subst(GetEnv(name), ':', ';');
337 string const pathlist = os::slashify_path(GetEnv(name));
339 return strip(pathlist, ';');
343 bool PutEnv(string const & envstr)
345 // CHECK Look at and fix this.
346 // f.ex. what about error checking?
349 // this leaks, but what can we do about it?
350 // Is doing a getenv() and a free() of the older value
351 // a good idea? (JMarc)
352 // Actually we don't have to leak...calling putenv like this
353 // should be enough: ... and this is obviously not enough if putenv
354 // does not make a copy of the string. It is also not very wise to
355 // put a string on the free store. If we have to leak we should do it
357 char * leaker = new char[envstr.length() + 1];
358 envstr.copy(leaker, envstr.length());
359 leaker[envstr.length()] = '\0';
360 int const retval = lyx::putenv(leaker);
362 // If putenv does not make a copy of the char const * this
363 // is very dangerous. OTOH if it does take a copy this is the
365 // The only implementation of putenv that I have seen does not
366 // allocate memory. _And_ after testing the putenv in glibc it
367 // seems that we need to make a copy of the string contents.
368 // I will enable the above.
369 //int retval = lyx::putenv(envstr.c_str());
373 string const str = envstr.split(varname,'=');
374 int const retval = ::setenv(varname.c_str(), str.c_str(), true);
376 // No environment setting function. Can this happen?
377 int const retval = 1; //return an error condition.
384 bool PutEnvPath(string const & envstr)
386 return PutEnv(envstr);
392 int DeleteAllFilesInDir (string const & path)
394 // I have decided that we will be using parts from the boost
395 // library. Check out http://www.boost.org/
396 // For directory access we will then use the directory_iterator.
397 // Then the code will be something like:
398 // directory_iterator dit(path);
399 // directory_iterator dend;
400 // if (dit == dend) {
401 // WriteFSAlert(_("Error! Cannot open directory:"), path);
404 // for (; dit != dend; ++dit) {
405 // string filename(*dit);
406 // if (filename == "." || filename == "..")
408 // string unlinkpath(AddName(path, filename));
409 // if (lyx::unlink(unlinkpath))
410 // WriteFSAlert(_("Error! Could not remove file:"),
414 DIR * dir = ::opendir(path.c_str());
416 WriteFSAlert (_("Error! Cannot open directory:"), path);
420 int return_value = 0;
421 while ((de = readdir(dir))) {
422 string const temp = de->d_name;
423 if (temp == "." || temp == "..")
425 string const unlinkpath = AddName (path, temp);
427 lyxerr[Debug::FILES] << "Deleting file: " << unlinkpath
431 if (FileInfo(unlinkpath).isDir())
432 deleted = (DeleteAllFilesInDir(unlinkpath) == 0);
433 deleted &= (lyx::unlink(unlinkpath) == 0);
435 WriteFSAlert (_("Error! Could not remove file:"),
445 string const CreateTmpDir(string const & tempdir, string const & mask)
448 << "CreateTmpDir: tempdir=`" << tempdir << "'\n"
449 << "CreateTmpDir: mask=`" << mask << "'" << endl;
451 string const tmpfl(lyx::tempName(tempdir, mask));
452 // lyx::tempName actually creates a file to make sure that it
453 // stays unique. So we have to delete it before we can create
454 // a dir with the same name. Note also that we are not thread
455 // safe because of the gap between unlink and mkdir. (Lgb)
456 lyx::unlink(tmpfl.c_str());
458 if (tmpfl.empty() || lyx::mkdir(tmpfl, 0700)) {
459 WriteFSAlert(_("Error! Couldn't create temporary directory:"),
463 return MakeAbsPath(tmpfl);
467 int DestroyTmpDir(string const & tmpdir, bool Allfiles)
472 if (Allfiles && DeleteAllFilesInDir(tmpdir)) {
475 if (lyx::rmdir(tmpdir)) {
476 WriteFSAlert(_("Error! Couldn't delete temporary directory:"),
486 string const CreateBufferTmpDir(string const & pathfor)
489 static string const tmpdir(pathfor.empty() ? os::getTmpDir() : pathfor);
490 // We are in our own directory. Why bother to mangle name?
491 // In fact I wrote this code to circumvent a problematic behaviour (bug?)
493 string const tmpfl = tmpdir + "/lyx_tmpbuf" + tostr(count++);
494 if (lyx::mkdir(tmpfl, 0777)) {
495 WriteFSAlert(_("Error! Couldn't create temporary directory:"),
503 int DestroyBufferTmpDir(string const & tmpdir)
505 return DestroyTmpDir(tmpdir, true);
509 string const CreateLyXTmpDir(string const & deflt)
511 if ((!deflt.empty()) && (deflt != "/tmp")) {
512 if (lyx::mkdir(deflt, 0777)) {
516 return CreateTmpDir(deflt, "lyx_tmpdir");
523 return CreateTmpDir("/tmp", "lyx_tmpdir");
528 int DestroyLyXTmpDir(string const & tmpdir)
530 return DestroyTmpDir (tmpdir, false); // Why false?
534 // Creates directory. Returns true if succesfull
535 bool createDirectory(string const & path, int permission)
537 string temp(strip(os::slashify_path(path), '/'));
540 WriteAlert(_("Internal error!"),
541 _("Call to createDirectory with invalid name"));
545 if (lyx::mkdir(temp, permission)) {
546 WriteFSAlert (_("Error! Couldn't create directory:"), temp);
553 // Strip filename from path name
554 string const OnlyPath(string const & Filename)
556 // If empty filename, return empty
557 if (Filename.empty()) return Filename;
559 // Find last / or start of filename
560 string::size_type j = Filename.rfind('/');
561 if (j == string::npos)
563 return Filename.substr(0, j + 1);
567 // Convert relative path into absolute path based on a basepath.
568 // If relpath is absolute, just use that.
569 // If basepath is empty, use CWD as base.
570 string const MakeAbsPath(string const & RelPath, string const & BasePath)
572 // checks for already absolute path
573 if (os::is_absolute_path(RelPath))
576 // Copies given paths
577 string TempRel(os::slashify_path(RelPath));
578 // Since TempRel is NOT absolute, we can safely replace "//" with "/"
579 TempRel = subst(TempRel, "//", "/");
583 if (os::is_absolute_path(BasePath))
586 TempBase = AddPath(lyx::getcwd(), BasePath);
588 // Handle /./ at the end of the path
589 while(suffixIs(TempBase, "/./"))
590 TempBase.erase(TempBase.length() - 2);
592 // processes relative path
593 string RTemp(TempRel);
596 while (!RTemp.empty()) {
598 RTemp = split(RTemp, Temp, '/');
600 if (Temp == ".") continue;
602 // Remove one level of TempBase
603 string::difference_type i = TempBase.length() - 2;
606 while (i > 0 && TempBase[i] != '/') --i;
610 while (i > 2 && TempBase[i] != '/') --i;
613 TempBase.erase(i, string::npos);
616 } else if (Temp.empty() && !RTemp.empty()) {
617 TempBase = os::current_root() + RTemp;
620 // Add this piece to TempBase
621 if (!suffixIs(TempBase, '/'))
627 // returns absolute path
628 return os::slashify_path(TempBase);
632 // Correctly append filename to the pathname.
633 // If pathname is '.', then don't use pathname.
634 // Chops any path of filename.
635 string const AddName(string const & path, string const & fname)
638 string const basename(OnlyFilename(fname));
642 if (path != "." && path != "./" && !path.empty()) {
643 buf = os::slashify_path(path);
644 if (!suffixIs(path, '/'))
648 return buf + basename;
652 // Strips path from filename
653 string const OnlyFilename(string const & fname)
658 string::size_type j = fname.rfind('/');
659 if (j == string::npos) // no '/' in fname
663 return fname.substr(j + 1);
667 /// Returns true is path is absolute
668 bool AbsolutePath(string const & path)
670 return os::is_absolute_path(path);
675 // Create absolute path. If impossible, don't do anything
676 // Supports ./ and ~/. Later we can add support for ~logname/. (Asger)
677 string const ExpandPath(string const & path)
679 // checks for already absolute path
680 string RTemp(ReplaceEnvironmentPath(path));
681 if (os::is_absolute_path(RTemp))
685 string const copy(RTemp);
688 RTemp = split(RTemp, Temp, '/');
691 return lyx::getcwd() /*GetCWD()*/ + '/' + RTemp;
694 return GetEnvPath("HOME") + '/' + RTemp;
697 return MakeAbsPath(copy);
699 // Don't know how to handle this
705 // Constracts path/../path
706 // Can't handle "../../" or "/../" (Asger)
707 string const NormalizePath(string const & path)
713 if (os::is_absolute_path(path))
716 // Make implicit current directory explicit
719 while (!RTemp.empty()) {
721 RTemp = split(RTemp, Temp, '/');
725 } else if (Temp == "..") {
726 // Remove one level of TempBase
727 string::difference_type i = TempBase.length() - 2;
728 while (i > 0 && TempBase[i] != '/')
730 if (i >= 0 && TempBase[i] == '/')
731 TempBase.erase(i + 1, string::npos);
735 TempBase += Temp + '/';
739 // returns absolute path
744 string const GetFileContents(string const & fname)
746 FileInfo finfo(fname);
748 ifstream ifs(fname.c_str());
753 return ofs.str().c_str();
756 lyxerr << "LyX was not able to read file '" << fname << "'" << endl;
762 // Search ${...} as Variable-Name inside the string and replace it with
763 // the denoted environmentvariable
764 // Allow Variables according to
765 // variable := '$' '{' [A-Za-z_]{[A-Za-z_0-9]*} '}'
768 string const ReplaceEnvironmentPath(string const & path)
771 // CompareChar: Environmentvariables starts with this character
772 // PathChar: Next path component start with this character
773 // while CompareChar found do:
774 // Split String with PathChar
775 // Search Environmentvariable
776 // if found: Replace Strings
778 char const CompareChar = '$';
779 char const FirstChar = '{';
780 char const EndChar = '}';
781 char const UnderscoreChar = '_';
782 string EndString; EndString += EndChar;
783 string FirstString; FirstString += FirstChar;
784 string CompareString; CompareString += CompareChar;
785 string const RegExp("*}*"); // Exist EndChar inside a String?
787 // first: Search for a '$' - Sign.
789 string result1; //(copy); // for split-calls
790 string result0 = split(path, result1, CompareChar);
791 while (!result0.empty()) {
792 string copy1(result0); // contains String after $
794 // Check, if there is an EndChar inside original String.
796 if (!regexMatch(copy1, RegExp)) {
797 // No EndChar inside. So we are finished
798 result1 += CompareString + result0;
804 string res0 = split(copy1, res1, EndChar);
805 // Now res1 holds the environmentvariable
806 // First, check, if Contents is ok.
807 if (res1.empty()) { // No environmentvariable. Continue Loop.
808 result1 += CompareString + FirstString;
812 // check contents of res1
813 char const * res1_contents = res1.c_str();
814 if (*res1_contents != FirstChar) {
815 // Again No Environmentvariable
816 result1 += CompareString;
820 // Check for variable names
821 // Situation ${} is detected as "No Environmentvariable"
822 char const * cp1 = res1_contents + 1;
823 bool result = isalpha(*cp1) || (*cp1 == UnderscoreChar);
825 while (*cp1 && result) {
826 result = isalnum(*cp1) ||
827 (*cp1 == UnderscoreChar);
832 // no correct variable name
833 result1 += CompareString + res1 + EndString;
834 result0 = split(res0, res1, CompareChar);
839 string env(GetEnv(res1_contents + 1));
841 // Congratulations. Environmentvariable found
844 result1 += CompareString + res1 + EndString;
847 result0 = split(res0, res1, CompareChar);
851 } // ReplaceEnvironmentPath
854 // Make relative path out of two absolute paths
855 string const MakeRelPath(string const & abspath, string const & basepath)
856 // Makes relative path out of absolute path. If it is deeper than basepath,
857 // it's easy. If basepath and abspath share something (they are all deeper
858 // than some directory), it'll be rendered using ..'s. If they are completely
859 // different, then the absolute path will be used as relative path.
861 string::size_type const abslen = abspath.length();
862 string::size_type const baselen = basepath.length();
864 string::size_type i = os::common_path(abspath, basepath);
867 // actually no match - cannot make it relative
871 // Count how many dirs there are in basepath above match
872 // and append as many '..''s into relpath
874 string::size_type j = i;
875 while (j < baselen) {
876 if (basepath[j] == '/') {
877 if (j + 1 == baselen)
884 // Append relative stuff from common directory to abspath
885 if (abspath[i] == '/')
887 for (; i < abslen; ++i)
890 if (suffixIs(buf, '/'))
891 buf.erase(buf.length() - 1);
892 // Substitute empty with .
899 // Append sub-directory(ies) to a path in an intelligent way
900 string const AddPath(string const & path, string const & path_2)
903 string const path2 = os::slashify_path(path_2);
905 if (!path.empty() && path != "." && path != "./") {
906 buf = os::slashify_path(path);
907 if (path[path.length() - 1] != '/')
911 if (!path2.empty()) {
912 string::size_type const p2start = path2.find_first_not_of('/');
913 string::size_type const p2end = path2.find_last_not_of('/');
914 string const tmp = path2.substr(p2start, p2end - p2start + 1);
922 Change extension of oldname to extension.
923 Strips path off if no_path == true.
924 If no extension on oldname, just appends.
926 string const ChangeExtension(string const & oldname, string const & extension)
928 string::size_type const last_slash = oldname.rfind('/');
929 string::size_type last_dot = oldname.rfind('.');
930 if (last_dot < last_slash && last_slash != string::npos)
931 last_dot = string::npos;
934 // Make sure the extension starts with a dot
935 if (!extension.empty() && extension[0] != '.')
936 ext= "." + extension;
940 return os::slashify_path(oldname.substr(0, last_dot) + ext);
944 /// Return the extension of the file (not including the .)
945 string const GetExtension(string const & name)
947 string::size_type const last_slash = name.rfind('/');
948 string::size_type const last_dot = name.rfind('.');
949 if (last_dot != string::npos &&
950 (last_slash == string::npos || last_dot > last_slash))
951 return name.substr(last_dot + 1,
952 name.length() - (last_dot + 1));
958 // Creates a nice compact path for displaying
960 MakeDisplayPath (string const & path, unsigned int threshold)
962 string::size_type const l1 = path.length();
964 // First, we try a relative path compared to home
965 string const home(GetEnvPath("HOME"));
966 string relhome = MakeRelPath(path, home);
968 string::size_type l2 = relhome.length();
972 // If we backup from home or don't have a relative path,
973 // this try is no good
974 if (prefixIs(relhome, "../") || os::is_absolute_path(relhome)) {
975 // relative path was no good, just use the original path
982 // Is the path too long?
983 if (l2 > threshold) {
989 while (relhome.length() > threshold)
990 relhome = split(relhome, temp, '/');
992 // Did we shortend everything away?
993 if (relhome.empty()) {
994 // Yes, filename in itself is too long.
995 // Pick the start and the end of the filename.
996 relhome = OnlyFilename(path);
997 string const head = relhome.substr(0, threshold/2 - 3);
999 l2 = relhome.length();
1001 relhome.substr(l2 - threshold/2 - 2, l2 - 1);
1002 relhome = head + "..." + tail;
1005 return prefix + relhome;
1009 bool LyXReadLink(string const & File, string & Link)
1011 char LinkBuffer[512];
1012 // Should be PATH_MAX but that needs autconf support
1013 int const nRead = ::readlink(File.c_str(),
1014 LinkBuffer, sizeof(LinkBuffer) - 1);
1017 LinkBuffer[nRead] = '\0'; // terminator
1025 typedef pair<int, string> cmdret;
1027 cmdret const do_popen(string const & cmd)
1029 // One question is if we should use popen or
1030 // create our own popen based on fork, exec, pipe
1031 // of course the best would be to have a
1032 // pstream (process stream), with the
1033 // variants ipstream, opstream
1034 FILE * inf = ::popen(cmd.c_str(), "r");
1038 ret += static_cast<char>(c);
1041 int const pret = pclose(inf);
1042 return make_pair(pret, ret);
1048 string const findtexfile(string const & fil, string const & /*format*/)
1050 /* There is no problem to extend this function too use other
1051 methods to look for files. It could be setup to look
1052 in environment paths and also if wanted as a last resort
1053 to a recursive find. One of the easier extensions would
1054 perhaps be to use the LyX file lookup methods. But! I am
1055 going to implement this until I see some demand for it.
1059 // If the file can be found directly, we just return a
1060 // absolute path version of it.
1061 if (FileInfo(fil).exist())
1062 return MakeAbsPath(fil);
1064 // No we try to find it using kpsewhich.
1065 // It seems from the kpsewhich manual page that it is safe to use
1066 // kpsewhich without --format: "When the --format option is not
1067 // given, the search path used when looking for a file is inferred
1068 // from the name given, by looking for a known extension. If no
1069 // known extension is found, the search path for TeX source files
1071 // However, we want to take advantage of the format sine almost all
1072 // the different formats has environment variables that can be used
1073 // to controll which paths to search. f.ex. bib looks in
1074 // BIBINPUTS and TEXBIB. Small list follows:
1075 // bib - BIBINPUTS, TEXBIB
1077 // graphic/figure - TEXPICTS, TEXINPUTS
1078 // ist - TEXINDEXSTYLE, INDEXSTYLE
1079 // pk - PROGRAMFONTS, PKFONTS, TEXPKS, GLYPHFONTS, TEXFONTS
1081 // tfm - TFMFONTS, TEXFONTS
1082 // This means that to use kpsewhich in the best possible way we
1083 // should help it by setting additional path in the approp. envir.var.
1084 string const kpsecmd = "kpsewhich " + fil;
1086 cmdret const c = do_popen(kpsecmd);
1088 lyxerr[Debug::LATEX] << "kpse status = " << c.first << "\n"
1089 << "kpse result = `" << strip(c.second, '\n')
1092 return os::internal_path(strip(strip(c.second, '\n'), '\r'));
1098 void removeAutosaveFile(string const & filename)
1100 string a = OnlyPath(filename);
1102 a += OnlyFilename(filename);
1104 FileInfo const fileinfo(a);
1105 if (fileinfo.exist()) {
1106 if (lyx::unlink(a) != 0) {
1107 WriteFSAlert(_("Could not delete auto-save file!"), a);