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>
58 using std::ostringstream;
62 namespace fs = boost::filesystem;
67 bool isLyXFilename(string const & filename)
69 return suffixIs(ascii_lowercase(filename), ".lyx");
73 bool isSGMLFilename(string const & filename)
75 return suffixIs(ascii_lowercase(filename), ".sgml");
79 bool isValidLaTeXFilename(string const & filename)
81 string const invalid_chars("#$%{}()[]\"^");
82 return filename.find_first_of(invalid_chars) == string::npos;
86 string const latex_path(string const & original_path,
87 latex_path_extension extension,
90 // On cygwin, we may need windows or posix style paths.
91 string path = os::latex_path(original_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 // ChangeExtension calls os::internal_path internally
98 // so don't use it to remove the extension.
99 string const ext = getExtension(path);
100 string const base = ext.empty() ?
102 path.substr(0, path.length() - ext.length() - 1);
103 // ChangeExtension calls os::internal_path internally
104 // so don't use it to re-add the extension.
105 path = "\\string\"" + base + "\\string\"." + ext;
107 path = "\\string\"" + path + "\\string\"";
111 return dots == ESCAPE_DOTS ? subst(path, ".", "\\lyxdot ") : path;
115 // Substitutes spaces with underscores in filename (and path)
116 string const makeLatexName(string const & file)
118 string name = onlyFilename(file);
119 string const path = onlyPath(file);
121 // ok so we scan through the string twice, but who cares.
122 string const keep = "abcdefghijklmnopqrstuvwxyz"
123 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
124 "@!'()*+,-./0123456789:;<=>?[]`|";
126 string::size_type pos = 0;
127 while ((pos = name.find_first_not_of(keep, pos)) != string::npos)
130 return addName(path, name);
134 string const quoteName(string const & name, quote_style style)
138 // This does not work for filenames containing " (windows)
139 // or ' (all other OSes). This can't be changed easily, since
140 // we would need to adapt the command line parser in
141 // Forkedcall::generateChild. Therefore we don't pass user
142 // filenames to child processes if possible. We store them in
143 // a python script instead, where we don't have these
145 return (os::shell() == os::UNIX) ?
149 return "\"" + subst(subst(name, "\\", "\\\\"), "\"", "\\\"")
152 // shut up stupid compiler
158 // Uses a string of paths separated by ";"s to find a file to open.
159 // Can't cope with pathnames with a ';' in them. Returns full path to file.
160 // If path entry begins with $$LyX/, use system_lyxdir
161 // If path entry begins with $$User/, use user_lyxdir
162 // Example: "$$User/doc;$$LyX/doc"
163 FileName const fileOpenSearch(string const & path, string const & name,
168 bool notfound = true;
169 string tmppath = split(path, path_element, ';');
171 while (notfound && !path_element.empty()) {
172 path_element = os::internal_path(path_element);
173 if (!suffixIs(path_element, '/'))
175 path_element = subst(path_element, "$$LyX",
176 package().system_support().absFilename());
177 path_element = subst(path_element, "$$User",
178 package().user_support().absFilename());
180 real_file = fileSearch(path_element, name, ext);
182 if (real_file.empty()) {
184 tmppath = split(tmppath, path_element, ';');
185 } while (!tmppath.empty() && path_element.empty());
195 /// Returns a vector of all files in directory dir having extension ext.
196 vector<FileName> const dirList(FileName const & dir, string const & ext)
198 // EXCEPTIONS FIXME. Rewrite needed when we turn on exceptions. (Lgb)
199 vector<FileName> dirlist;
201 if (!(dir.exists() && dir.isDirectory())) {
203 << "Directory \"" << dir
204 << "\" does not exist to DirList." << endl;
209 if (!ext.empty() && ext[0] != '.')
213 string const encoded_dir = dir.toFilesystemEncoding();
214 fs::directory_iterator dit(encoded_dir);
215 fs::directory_iterator end;
216 for (; dit != end; ++dit) {
217 string const & fil = dit->leaf();
218 if (suffixIs(fil, extension))
219 dirlist.push_back(FileName::fromFilesystemEncoding(
220 encoded_dir + '/' + fil));
226 // Returns the real name of file name in directory path, with optional
228 FileName const fileSearch(string const & path, string const & name,
229 string const & ext, search_mode mode)
231 // if `name' is an absolute path, we ignore the setting of `path'
232 // Expand Environmentvariables in 'name'
233 string const tmpname = replaceEnvironmentPath(name);
234 FileName fullname(makeAbsPath(tmpname, path));
235 // search first without extension, then with it.
236 if (fullname.isReadable())
240 return mode == allow_unreadable ? fullname : FileName();
241 // Only add the extension if it is not already the extension of
243 if (getExtension(fullname.absFilename()) != ext)
244 fullname = FileName(addExtension(fullname.absFilename(), ext));
245 if (fullname.isReadable() || mode == allow_unreadable)
251 // Search the file name.ext in the subdirectory dir of
253 // 2) build_lyxdir (if not empty)
255 FileName const libFileSearch(string const & dir, string const & name,
258 FileName fullname = fileSearch(addPath(package().user_support().absFilename(), dir),
260 if (!fullname.empty())
263 if (!package().build_support().empty())
264 fullname = fileSearch(addPath(package().build_support().absFilename(), dir),
266 if (!fullname.empty())
269 return fileSearch(addPath(package().system_support().absFilename(), dir), name, ext);
273 FileName const i18nLibFileSearch(string const & dir, string const & name,
276 /* The highest priority value is the `LANGUAGE' environment
277 variable. But we don't use the value if the currently
278 selected locale is the C locale. This is a GNU extension.
280 Otherwise, w use a trick to guess what gettext has done:
281 each po file is able to tell us its name. (JMarc)
284 string lang = to_ascii(_("[[Replace with the code of your language]]"));
285 string const language = getEnv("LANGUAGE");
286 if (!lang.empty() && !language.empty())
290 lang = split(lang, l, ':');
293 // First try with the full name
294 tmp = libFileSearch(addPath(dir, l), name, ext);
298 // Then the name without country code
299 string const shortl = token(l, '_', 0);
301 tmp = libFileSearch(addPath(dir, shortl), name, ext);
307 // For compatibility, to be removed later (JMarc)
308 tmp = libFileSearch(dir, token(l, '_', 0) + '_' + name,
311 lyxerr << "i18nLibFileSearch: File `" << tmp
312 << "' has been found by the old method" <<endl;
316 lang = split(lang, l, ':');
319 return libFileSearch(dir, name, ext);
323 string const libScriptSearch(string const & command_in, quote_style style)
325 static string const token_scriptpath = "$$s/";
327 string command = command_in;
328 // Find the starting position of "$$s/"
329 string::size_type const pos1 = command.find(token_scriptpath);
330 if (pos1 == string::npos)
332 // Find the end of the "$$s/some_subdir/some_script" word within
333 // command. Assumes that the script name does not contain spaces.
334 string::size_type const start_script = pos1 + 4;
335 string::size_type const pos2 = command.find(' ', start_script);
336 string::size_type const size_script = pos2 == string::npos?
337 (command.size() - start_script) : pos2 - start_script;
339 // Does this script file exist?
340 string const script =
341 libFileSearch(".", command.substr(start_script, size_script)).absFilename();
343 if (script.empty()) {
344 // Replace "$$s/" with ""
345 command.erase(pos1, 4);
347 // Replace "$$s/foo/some_script" with "<path to>/some_script".
348 string::size_type const size_replace = size_script + 4;
349 command.replace(pos1, size_replace, quoteName(script, style));
358 FileName const createTmpDir(FileName const & tempdir, string const & mask)
361 << "createTmpDir: tempdir=`" << tempdir << "'\n"
362 << "createTmpDir: mask=`" << mask << '\'' << endl;
364 FileName const tmpfl(tempName(tempdir, mask));
365 // lyx::tempName actually creates a file to make sure that it
366 // stays unique. So we have to delete it before we can create
367 // a dir with the same name. Note also that we are not thread
368 // safe because of the gap between unlink and mkdir. (Lgb)
371 if (tmpfl.empty() || mkdir(tmpfl, 0700)) {
372 lyxerr << "LyX could not create the temporary directory '"
373 << tmpfl << "'" << endl;
383 bool destroyDir(FileName const & tmpdir)
386 return fs::remove_all(tmpdir.toFilesystemEncoding()) > 0;
387 } catch (fs::filesystem_error const & fe){
388 lyxerr << "Could not delete " << tmpdir << ". (" << fe.what() << ")" << std::endl;
394 string const createBufferTmpDir()
397 // We are in our own directory. Why bother to mangle name?
398 // In fact I wrote this code to circumvent a problematic behaviour
399 // (bug?) of EMX mkstemp().
401 package().temp_dir().absFilename() + "/lyx_tmpbuf" +
402 convert<string>(count++);
404 if (mkdir(FileName(tmpfl), 0777)) {
405 lyxerr << "LyX could not create the temporary directory '"
406 << tmpfl << "'" << endl;
413 FileName const createLyXTmpDir(FileName const & deflt)
415 if (!deflt.empty() && deflt.absFilename() != "/tmp") {
416 if (mkdir(deflt, 0777)) {
417 if (deflt.isDirWritable()) {
418 // deflt could not be created because it
419 // did exist already, so let's create our own
421 return createTmpDir(deflt, "lyx_tmpdir");
423 // some other error occured.
424 return createTmpDir(FileName("/tmp"), "lyx_tmpdir");
429 return createTmpDir(FileName("/tmp"), "lyx_tmpdir");
434 bool createDirectory(FileName const & path, int permission)
436 BOOST_ASSERT(!path.empty());
437 return mkdir(path, permission) == 0;
441 // Strip filename from path name
442 string const onlyPath(string const & filename)
444 // If empty filename, return empty
445 if (filename.empty())
448 // Find last / or start of filename
449 string::size_type j = filename.rfind('/');
450 return j == string::npos ? "./" : filename.substr(0, j + 1);
454 // Convert relative path into absolute path based on a basepath.
455 // If relpath is absolute, just use that.
456 // If basepath is empty, use CWD as base.
457 FileName const makeAbsPath(string const & relPath, string const & basePath)
459 // checks for already absolute path
460 if (os::is_absolute_path(relPath))
461 return FileName(relPath);
463 // Copies given paths
464 string tempRel = os::internal_path(relPath);
465 // Since TempRel is NOT absolute, we can safely replace "//" with "/"
466 tempRel = subst(tempRel, "//", "/");
470 if (os::is_absolute_path(basePath))
473 tempBase = addPath(getcwd().absFilename(), basePath);
475 // Handle /./ at the end of the path
476 while (suffixIs(tempBase, "/./"))
477 tempBase.erase(tempBase.length() - 2);
479 // processes relative path
480 string rTemp = tempRel;
483 while (!rTemp.empty()) {
485 rTemp = split(rTemp, temp, '/');
487 if (temp == ".") continue;
489 // Remove one level of TempBase
490 string::difference_type i = tempBase.length() - 2;
493 while (i > 0 && tempBase[i] != '/')
496 tempBase.erase(i, string::npos);
499 } else if (temp.empty() && !rTemp.empty()) {
500 tempBase = os::current_root() + rTemp;
503 // Add this piece to TempBase
504 if (!suffixIs(tempBase, '/'))
510 // returns absolute path
511 return FileName(os::internal_path(tempBase));
515 // Correctly append filename to the pathname.
516 // If pathname is '.', then don't use pathname.
517 // Chops any path of filename.
518 string const addName(string const & path, string const & fname)
520 string const basename = onlyFilename(fname);
523 if (path != "." && path != "./" && !path.empty()) {
524 buf = os::internal_path(path);
525 if (!suffixIs(path, '/'))
529 return buf + basename;
533 // Strips path from filename
534 string const onlyFilename(string const & fname)
539 string::size_type j = fname.rfind('/');
540 if (j == string::npos) // no '/' in fname
544 return fname.substr(j + 1);
548 /// Returns true is path is absolute
549 bool absolutePath(string const & path)
551 return os::is_absolute_path(path);
555 // Create absolute path. If impossible, don't do anything
556 // Supports ./ and ~/. Later we can add support for ~logname/. (Asger)
557 string const expandPath(string const & path)
559 // checks for already absolute path
560 string rTemp = replaceEnvironmentPath(path);
561 if (os::is_absolute_path(rTemp))
565 string const copy = rTemp;
568 rTemp = split(rTemp, temp, '/');
571 return getcwd().absFilename() + '/' + rTemp;
574 return package().home_dir().absFilename() + '/' + rTemp;
577 return makeAbsPath(copy).absFilename();
579 // Don't know how to handle this
584 // Normalize a path. Constracts path/../path
585 // Can't handle "../../" or "/../" (Asger)
586 // Also converts paths like /foo//bar ==> /foo/bar
587 string const normalizePath(string const & path)
589 // Normalize paths like /foo//bar ==> /foo/bar
590 static boost::regex regex("/{2,}");
591 string const tmppath = boost::regex_merge(path, regex, "/");
593 fs::path const npath = fs::path(tmppath, fs::no_check).normalize();
595 if (!npath.is_complete())
596 return "./" + npath.string() + '/';
598 return npath.string() + '/';
602 string const getFileContents(FileName const & fname)
604 string const encodedname = fname.toFilesystemEncoding();
605 if (fs::exists(encodedname)) {
606 ifstream ifs(encodedname.c_str());
614 lyxerr << "LyX was not able to read file '" << fname << '\'' << endl;
619 // Search the string for ${VAR} and $VAR and replace VAR using getenv.
620 string const replaceEnvironmentPath(string const & path)
622 // ${VAR} is defined as
623 // $\{[A-Za-z_][A-Za-z_0-9]*\}
624 static string const envvar_br = "[$]\\{([A-Za-z_][A-Za-z_0-9]*)\\}";
626 // $VAR is defined as:
627 // $\{[A-Za-z_][A-Za-z_0-9]*\}
628 static string const envvar = "[$]([A-Za-z_][A-Za-z_0-9]*)";
630 static boost::regex envvar_br_re("(.*)" + envvar_br + "(.*)");
631 static boost::regex envvar_re("(.*)" + envvar + "(.*)");
634 string result = path;
636 regex_match(result, what, envvar_br_re);
637 if (!what[0].matched) {
638 regex_match(result, what, envvar_re);
639 if (!what[0].matched)
642 result = what.str(1) + getEnv(what.str(2)) + what.str(3);
648 // Make relative path out of two absolute paths
649 docstring const makeRelPath(docstring const & abspath, docstring const & basepath)
650 // Makes relative path out of absolute path. If it is deeper than basepath,
651 // it's easy. If basepath and abspath share something (they are all deeper
652 // than some directory), it'll be rendered using ..'s. If they are completely
653 // different, then the absolute path will be used as relative path.
655 docstring::size_type const abslen = abspath.length();
656 docstring::size_type const baselen = basepath.length();
658 docstring::size_type i = os::common_path(abspath, basepath);
661 // actually no match - cannot make it relative
665 // Count how many dirs there are in basepath above match
666 // and append as many '..''s into relpath
668 docstring::size_type j = i;
669 while (j < baselen) {
670 if (basepath[j] == '/') {
671 if (j + 1 == baselen)
678 // Append relative stuff from common directory to abspath
679 if (abspath[i] == '/')
681 for (; i < abslen; ++i)
684 if (suffixIs(buf, '/'))
685 buf.erase(buf.length() - 1);
686 // Substitute empty with .
693 // Append sub-directory(ies) to a path in an intelligent way
694 string const addPath(string const & path, string const & path_2)
697 string const path2 = os::internal_path(path_2);
699 if (!path.empty() && path != "." && path != "./") {
700 buf = os::internal_path(path);
701 if (path[path.length() - 1] != '/')
705 if (!path2.empty()) {
706 string::size_type const p2start = path2.find_first_not_of('/');
707 string::size_type const p2end = path2.find_last_not_of('/');
708 string const tmp = path2.substr(p2start, p2end - p2start + 1);
715 string const changeExtension(string const & oldname, string const & extension)
717 string::size_type const last_slash = oldname.rfind('/');
718 string::size_type last_dot = oldname.rfind('.');
719 if (last_dot < last_slash && last_slash != string::npos)
720 last_dot = string::npos;
723 // Make sure the extension starts with a dot
724 if (!extension.empty() && extension[0] != '.')
725 ext= '.' + extension;
729 return os::internal_path(oldname.substr(0, last_dot) + ext);
733 string const removeExtension(string const & name)
735 return changeExtension(name, string());
739 string const addExtension(string const & name, string const & extension)
741 if (!extension.empty() && extension[0] != '.')
742 return name + '.' + extension;
743 return name + extension;
747 /// Return the extension of the file (not including the .)
748 string const getExtension(string const & name)
750 string::size_type const last_slash = name.rfind('/');
751 string::size_type const last_dot = name.rfind('.');
752 if (last_dot != string::npos &&
753 (last_slash == string::npos || last_dot > last_slash))
754 return name.substr(last_dot + 1,
755 name.length() - (last_dot + 1));
761 // the different filetypes and what they contain in one of the first lines
762 // (dots are any characters). (Herbert 20020131)
765 // EPS %!PS-Adobe-3.0 EPSF...
772 // PBM P1... or P4 (B/W)
773 // PGM P2... or P5 (Grayscale)
774 // PPM P3... or P6 (color)
775 // PS %!PS-Adobe-2.0 or 1.0, no "EPSF"!
776 // SGI \001\332... (decimal 474)
778 // TIFF II... or MM...
780 // XPM /* XPM */ sometimes missing (f.ex. tgif-export)
781 // ...static char *...
782 // XWD \000\000\000\151 (0x00006900) decimal 105
784 // GZIP \037\213 http://www.ietf.org/rfc/rfc1952.txt
785 // ZIP PK... http://www.halyava.ru/document/ind_arch.htm
786 // Z \037\235 UNIX compress
788 string const getFormatFromContents(FileName const & filename)
791 if (filename.empty() || !filename.isReadable())
794 ifstream ifs(filename.toFilesystemEncoding().c_str());
796 // Couldn't open file...
800 static string const gzipStamp = "\037\213";
803 static string const zipStamp = "PK";
806 static string const compressStamp = "\037\235";
808 // Maximum strings to read
809 int const max_count = 50;
814 bool firstLine = true;
815 while ((count++ < max_count) && format.empty()) {
817 LYXERR(Debug::GRAPHICS)
818 << "filetools(getFormatFromContents)\n"
819 << "\tFile type not recognised before EOF!"
825 string const stamp = str.substr(0, 2);
826 if (firstLine && str.size() >= 2) {
827 // at first we check for a zipped file, because this
828 // information is saved in the first bytes of the file!
829 // also some graphic formats which save the information
830 // in the first line, too.
831 if (prefixIs(str, gzipStamp)) {
834 } else if (stamp == zipStamp) {
837 } else if (stamp == compressStamp) {
841 } else if (stamp == "BM") {
844 } else if (stamp == "\001\332") {
848 // Don't need to use str.at(0), str.at(1) because
849 // we already know that str.size() >= 2
850 } else if (str[0] == 'P') {
866 } else if ((stamp == "II") || (stamp == "MM")) {
869 } else if (prefixIs(str,"%TGIF")) {
872 } else if (prefixIs(str,"#FIG")) {
875 } else if (prefixIs(str,"GIF")) {
878 } else if (str.size() > 3) {
879 int const c = ((str[0] << 24) & (str[1] << 16) &
880 (str[2] << 8) & str[3]);
891 else if (contains(str,"EPSF"))
892 // dummy, if we have wrong file description like
893 // %!PS-Adobe-2.0EPSF"
896 else if (contains(str, "Grace"))
899 else if (contains(str, "JFIF"))
902 else if (contains(str, "%PDF"))
905 else if (contains(str, "PNG"))
908 else if (contains(str, "%!PS-Adobe")) {
911 if (contains(str,"EPSF"))
917 else if (contains(str, "_bits[]"))
920 else if (contains(str, "XPM") || contains(str, "static char *"))
923 else if (contains(str, "BITPIX"))
927 if (!format.empty()) {
928 LYXERR(Debug::GRAPHICS)
929 << "Recognised Fileformat: " << format << endl;
933 LYXERR(Debug::GRAPHICS)
934 << "filetools(getFormatFromContents)\n"
935 << "\tCouldn't find a known format!\n";
940 /// check for zipped file
941 bool zippedFile(FileName const & name)
943 string const type = getFormatFromContents(name);
944 if (contains("gzip zip compress", type) && !type.empty())
950 string const unzippedFileName(string const & zipped_file)
952 string const ext = getExtension(zipped_file);
953 if (ext == "gz" || ext == "z" || ext == "Z")
954 return changeExtension(zipped_file, string());
955 return "unzipped_" + zipped_file;
959 FileName const unzipFile(FileName const & zipped_file, string const & unzipped_file)
961 FileName const tempfile = FileName(unzipped_file.empty() ?
962 unzippedFileName(zipped_file.toFilesystemEncoding()) :
965 string const command = "gunzip -c " +
966 zipped_file.toFilesystemEncoding() + " > " +
967 tempfile.toFilesystemEncoding();
969 one.startscript(Systemcall::Wait, command);
970 // test that command was executed successfully (anon)
971 // yes, please do. (Lgb)
976 docstring const makeDisplayPath(string const & path, unsigned int threshold)
980 // If file is from LyXDir, display it as if it were relative.
981 string const system = package().system_support().absFilename();
982 if (prefixIs(str, system) && str != system)
983 return from_utf8("[" + str.erase(0, system.length()) + "]");
985 // replace /home/blah with ~/
986 string const home = package().home_dir().absFilename();
987 if (!home.empty() && prefixIs(str, home))
988 str = subst(str, home, "~");
990 if (str.length() <= threshold)
991 return from_utf8(os::external_path(str));
993 string const prefix = ".../";
996 while (str.length() > threshold)
997 str = split(str, temp, '/');
999 // Did we shorten everything away?
1001 // Yes, filename itself is too long.
1002 // Pick the start and the end of the filename.
1003 str = onlyFilename(path);
1004 string const head = str.substr(0, threshold / 2 - 3);
1006 string::size_type len = str.length();
1008 str.substr(len - threshold / 2 - 2, len - 1);
1009 str = head + "..." + tail;
1012 return from_utf8(os::external_path(prefix + str));
1016 bool readLink(FileName const & file, FileName & link)
1018 #ifdef HAVE_READLINK
1019 char linkbuffer[512];
1020 // Should be PATH_MAX but that needs autconf support
1021 string const encoded = file.toFilesystemEncoding();
1022 int const nRead = ::readlink(encoded.c_str(),
1023 linkbuffer, sizeof(linkbuffer) - 1);
1026 linkbuffer[nRead] = '\0'; // terminator
1027 link = makeAbsPath(linkbuffer, onlyPath(file.absFilename()));
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.cpp
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 FileName 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 FileName const absfile(makeAbsPath(fil));
1097 if (fs::exists(absfile.toFilesystemEncoding()))
1100 // No we try to find it using kpsewhich.
1101 // It seems from the kpsewhich manual page that it is safe to use
1102 // kpsewhich without --format: "When the --format option is not
1103 // given, the search path used when looking for a file is inferred
1104 // from the name given, by looking for a known extension. If no
1105 // known extension is found, the search path for TeX source files
1107 // However, we want to take advantage of the format sine almost all
1108 // the different formats has environment variables that can be used
1109 // to controll which paths to search. f.ex. bib looks in
1110 // BIBINPUTS and TEXBIB. Small list follows:
1111 // bib - BIBINPUTS, TEXBIB
1113 // graphic/figure - TEXPICTS, TEXINPUTS
1114 // ist - TEXINDEXSTYLE, INDEXSTYLE
1115 // pk - PROGRAMFONTS, PKFONTS, TEXPKS, GLYPHFONTS, TEXFONTS
1117 // tfm - TFMFONTS, TEXFONTS
1118 // This means that to use kpsewhich in the best possible way we
1119 // should help it by setting additional path in the approp. envir.var.
1120 string const kpsecmd = "kpsewhich " + fil;
1122 cmd_ret const c = runCommand(kpsecmd);
1124 LYXERR(Debug::LATEX) << "kpse status = " << c.first << '\n'
1125 << "kpse result = `" << rtrim(c.second, "\n\r")
1128 return FileName(os::internal_path(rtrim(to_utf8(from_filesystem8bit(c.second)),
1135 void removeAutosaveFile(string const & filename)
1137 string a = onlyPath(filename);
1139 a += onlyFilename(filename);
1141 FileName const autosave(a);
1142 if (fs::exists(autosave.toFilesystemEncoding()))
1147 void readBB_lyxerrMessage(FileName const & file, bool & zipped,
1148 string const & message)
1150 LYXERR(Debug::GRAPHICS) << "[readBB_from_PSFile] "
1151 << message << std::endl;
1152 // FIXME: Why is this func deleting a file? (Lgb)
1158 string const readBB_from_PSFile(FileName const & file)
1160 // in a (e)ps-file it's an entry like %%BoundingBox:23 45 321 345
1161 // It seems that every command in the header has an own line,
1162 // getline() should work for all files.
1163 // On the other hand some plot programs write the bb at the
1164 // end of the file. Than we have in the header:
1165 // %%BoundingBox: (atend)
1166 // In this case we must check the end.
1167 bool zipped = zippedFile(file);
1168 FileName const file_ = zipped ? unzipFile(file) : file;
1169 string const format = getFormatFromContents(file_);
1171 if (format != "eps" && format != "ps") {
1172 readBB_lyxerrMessage(file_, zipped,"no(e)ps-format");
1176 static boost::regex bbox_re(
1177 "^%%BoundingBox:\\s*([[:digit:]]+)\\s+([[:digit:]]+)\\s+([[:digit:]]+)\\s+([[:digit:]]+)");
1178 std::ifstream is(file_.toFilesystemEncoding().c_str());
1183 if (regex_match(s, what, bbox_re)) {
1184 // Our callers expect the tokens in the string
1185 // separated by single spaces.
1186 // FIXME: change return type from string to something
1189 os << what.str(1) << ' ' << what.str(2) << ' '
1190 << what.str(3) << ' ' << what.str(4);
1191 string const bb = os.str();
1192 readBB_lyxerrMessage(file_, zipped, bb);
1196 readBB_lyxerrMessage(file_, zipped, "no bb found");
1201 int compare_timestamps(FileName const & file1, FileName const & file2)
1203 // If the original is newer than the copy, then copy the original
1204 // to the new directory.
1207 if (file1.exists() && file2.exists()) {
1208 double const tmp = difftime(file1.lastModified(), file2.lastModified());
1210 cmp = tmp > 0 ? 1 : -1;
1212 } else if (file1.exists()) {
1214 } else if (file2.exists()) {
1221 } //namespace support