4 * This file is part of LyX, the document processor.
5 * Licence details can be found in the file COPYING.
7 * \author Lars Gullik Bjønnes
9 * Full author contact details are available in file CREDITS.
12 #ifndef LYX_FILETOOL_H
13 #define LYX_FILETOOL_H
15 #include "support/docstring.h"
25 /** Creates the global LyX temp dir.
26 \p deflt can be an existing directory name. In this case a new directory
27 inside \p deflt is created. If \p deflt does not exist yet, \p deflt is
28 created and used as the temporary directory.
29 \return the tmp dir name or string() if something went wrong.
31 FileName const createLyXTmpDir(FileName const & deflt);
34 // FIXME unused. Should this be deleted or resurrected?
35 /** Find file by searching several directories.
36 Uses a string of paths separated by ";"s to find a file to open.
37 Can't cope with pathnames with a ';' in them. Returns full path to file.
38 If path entry begins with $$LyX/, use system_lyxdir.
39 If path entry begins with $$User/, use user_lyxdir.
40 Example: "$$User/doc;$$LyX/doc".
42 FileName const fileOpenSearch(std::string const & path,
43 std::string const & name,
44 std::string const & ext = std::string());
47 /// How to search files
49 /// The file must exist (return an empty file name otherwise)
51 /// Only do file name expansion, return the complete name even if
52 /// the file does not exist
54 /// The (image) file may be present with hi-dpi resolution -
55 /// the lookup checks for a file named "image" + "@2x" + ".ext" first.
56 /// If found it will return e.g. "image@2x.png" instead of "image.png".
57 /// Otherwise it will work as must_exist.
61 /** Returns the real name of file name in directory path, with optional
63 The file is searched in the given path (unless it is an absolute
64 file name), first directly, and then with extension .ext (if given).
66 FileName const fileSearch(std::string const & path,
67 std::string const & name,
68 std::string const & ext = std::string(),
69 search_mode mode = must_exist);
72 bool isLyXFileName(std::string const & filename);
75 bool isSGMLFileName(std::string const & filename);
77 /// check for characters in filenames not allowed by LaTeX
78 bool isValidLaTeXFileName(std::string const & filename);
80 /** check for characters in filenames that might lead to
81 problems when manually compiling the LaTeX export of LyX
82 and opening the result with some older DVI-viewers
84 bool isValidDVIFileName(std::string const & filename);
86 /// check whether the file has binary contents
87 bool isBinaryFile(FileName const & filename);
89 /** Returns the path of a library data file.
90 Search the file name.ext in the subdirectory dir of
92 -# build_lyxdir (if not empty)
94 The third parameter `ext' is optional.
96 FileName const libFileSearch(std::string const & dir,
97 std::string const & name,
98 std::string const & ext = std::string(),
99 search_mode mode = must_exist);
101 /** Same as libFileSearch(), but tries first to find an
102 internationalized version of the file by prepending $LANG_ to the
106 i18nLibFileSearch(std::string const & dir,
107 std::string const & name,
108 std::string const & ext = std::string());
110 /** Same as libFileSearch(), but tries first to find a preferred
111 version of the file by appending the icon set name to the dir
114 imageLibFileSearch(std::string & dir, std::string const & name,
115 std::string const & ext = std::string(),
116 search_mode mode = must_exist);
118 /** Returns the percentage factor by which an image has to be
119 scaled for matching the (theme dependent) nominal icon size
121 int iconScaleFactor(FileName const & image);
123 /// How to quote a filename
125 /** Quote for the (OS dependant) shell. This is needed for command
126 line arguments of subprocesses. */
128 /** Quote a file name for the (OS dependant) shell. This is needed
129 for file names as command line arguments of subprocesses. */
130 quote_shell_filename,
131 /** Quote for python. Use this if you want to store a filename in a
132 python script. Example: \code
133 os << "infile = " << quoteName(filename) << '\\n';
134 \endcode This uses double quotes, so that you can also use this
135 to quote filenames as part of a string if the string is quoted
136 with single quotes. */
140 /** Takes a command such as "python $$s/scripts/convertDefault.py file.in file.out"
141 * and replaces "$$s/" with the path to the LyX support directory containing
142 * this script. If the script is not found, "$$s/" is removed. Executing the
143 * command will still fail, but the error message will make some sort of
146 std::string const commandPrep(std::string const & command);
148 enum latex_path_extension {
153 enum latex_path_dots {
158 /** @param path a file path in internal_path format. Ie, directories
159 * are indicated by '/', not by '\'.
161 * Manipulates @c path into a form suitable for inclusion in a LaTeX
163 * If @c path contains LaTeX special characters, these are escaped.
164 * Eg, '~' -> '\\string~'
165 * If @c path contains spaces, then the returned path is enclosed in
166 * "-quotes. This last fix will lead to successful compiliation of the
167 * LaTeX file only if a sufficiently modern LaTeX compiler is used.
168 * If @c ext == EXCLUDE_EXTENSION the extension is left outside the quotes.
169 * This is needed for pdfeTeX, Version 3.141592-1.21a-2.2 (Web2C 7.5.4)
170 * (format=pdflatex 2005.4.11) in combination with
171 * pdftex.def 2002/06/19 v0.03k graphics/color for pdftex:
172 * It does not recognize the file extension if it is inside the quotes.
173 * If @c dots == ESCAPE_DOTS dots in the filename are replaced by
174 * "\\lyxdot ". This is needed for the \\includegraphics command if the
175 * automatic format selection is used.
177 std::string const latex_path(std::string const & path,
178 latex_path_extension extension = PROTECT_EXTENSION,
179 latex_path_dots dots = LEAVE_DOTS);
181 /// Substitutes active latex characters with underscores in filename
182 FileName const makeLatexName(FileName const & file);
184 /** Put the name in quotes suitable for the current shell or python,
185 depending on \p style. */
186 std::string const quoteName(std::string const & file, quote_style style = quote_shell);
188 /// Add a filename to a path. Any path from filename is stripped first.
189 std::string const addName(std::string const & path, std::string const & fname);
191 /// Append sub-directory(ies) to path in an intelligent way
192 std::string const addPath(std::string const & path, std::string const & path2);
194 /** Change extension of oldname to extension.
195 If oldname does not have an extension, it is appended.
196 If the extension is empty, any extension is removed from the name.
199 changeExtension(std::string const & oldname, std::string const & extension);
201 /// Remove the extension from \p name
202 std::string const removeExtension(std::string const & name);
204 /** Add the extension \p ext to \p name.
205 Use this instead of changeExtension if you know that \p name is without
206 extension, because changeExtension would wrongly interpret \p name if it
210 addExtension(std::string const & name, std::string const & extension);
212 /// Return the extension of the file (not including the .)
213 std::string const getExtension(std::string const & name);
215 /** \return the name that LyX will give to the unzipped file \p zipped_file
216 if the second argument of unzipFile() is empty.
218 std::string const unzippedFileName(std::string const & zipped_file);
220 /** Unzip \p zipped_file.
221 The unzipped file is named \p unzipped_file if \p unzipped_file is not
222 empty, and unzippedFileName(\p zipped_file) otherwise.
223 Will overwrite an already existing unzipped file without warning.
225 FileName const unzipFile(FileName const & zipped_file,
226 std::string const & unzipped_file = std::string());
228 /// Create absolute path. If impossible, don't do anything
229 std::string const expandPath(std::string const & path);
231 /** Convert relative path into absolute path based on a basepath.
232 If relpath is absolute, just use that.
233 If basepath doesn't exist use CWD.
235 FileName const makeAbsPath(std::string const & RelPath = std::string(),
236 std::string const & BasePath = std::string());
238 /** Creates a nice compact path for displaying. The parameter
239 threshold, if given, specifies the maximal length of the path.
242 makeDisplayPath(std::string const & path, unsigned int threshold = 1000);
244 /** Makes relative path out of absolute path.
245 If it is deeper than basepath,
246 it's easy. If basepath and abspath share something (they are all deeper
247 than some directory), it'll be rendered using ..'s. If they are completely
248 different, then the absolute path will be used as relative path
249 WARNING: the absolute path and base path must really be absolute paths!!!
252 makeRelPath(docstring const & abspath, docstring const & basepath);
254 /// Strip filename from path name
255 std::string const onlyPath(std::string const & fname);
257 /// Strips path from filename
258 std::string const onlyFileName(std::string const & fname);
260 /** Check and Replace Environmentvariables ${NAME} in Path.
261 Replaces all occurences of these, if they are found in the
263 Variables are defined by Var := '${' [a-zA-Z_][a-zA-Z_0-9]* '}'
265 std::string const replaceEnvironmentPath(std::string const & path);
268 Return a string to be used as a prefix to a command for setting the
269 environment of the TeX engine with respect to the path \p path.
271 std::string latexEnvCmdPrefix(std::string const & path);
273 /** Replace all references to a current directory (a lonely '.' or
274 the prefix "./") in \c pathlist with \c path. Also prefixes
275 all non-absolute paths with \c path.
277 std::string const replaceCurdirPath(std::string const & path, std::string const & pathlist);
279 /** Set \c link to the path \c file points to as a symbolic link.
280 \return true if successful.
282 bool readLink(FileName const & file, FileName & link);
285 * Search a TeX file in all locations the latex compiler would search it,
286 * with the help of kpsewhich.
287 * The current working directory must be set correctly, so that relative
289 * \param fil The filename to search
290 * \param format The file format as used by kpsewhich, e.g. "bib", "bst" etc.
292 FileName const findtexfile(std::string const & fil,
293 std::string const & format);
295 /** \param file1, file2 the two files to be compared. Must have absolute paths.
296 * \returns 1 if \c file1 has a more recent timestamp than \c file2,
297 * 0 if their timestamps are the same,
298 * -1 if \c file2 has a more recent timestamp than \c file1.
299 * If one of the files does not exist, the return value indicates the file
300 * which does exist. Eg, if \c file1 exists but \c file2 does not, return 1.
302 int compare_timestamps(FileName const & file1, FileName const & file2);
304 /// \param lfuns: true if we're converting lfuns, false if prefs
305 bool prefs2prefs(FileName const & filename, FileName const & tempfile,
308 /// Does file \p file need to be updated by configure.py?
309 bool configFileNeedsUpdate(std::string const & file);
311 typedef std::pair<int, std::string> cmd_ret;
313 cmd_ret const runCommand(std::string const & cmd);
315 int fileLock(const char * lock_file);
316 void fileUnlock(int fd, const char * lock_file);
318 } // namespace support