X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fsupport%2Fos.h;h=73eb86d7f331c51853fb5e972d5cb9cea038d6f5;hb=8d640dc77608bedddb5b00982c23665584f52d21;hp=fef5345e06128e94d0a00d4a7a3fc9b716829a7c;hpb=72956b1c3b6da705161f1becea18af09d8d2815e;p=lyx.git diff --git a/src/support/os.h b/src/support/os.h index fef5345e06..73eb86d7f3 100644 --- a/src/support/os.h +++ b/src/support/os.h @@ -1,79 +1,179 @@ -// os.h copyright "Ruurd A. Reitsma" +// -*- C++ -*- +/** + * \file os.h + * This file is part of LyX, the document processor. + * Licence details can be found in the file COPYING. + * + * \author Ruurd A. Reitsma + * + * Full author contact details are available in file CREDITS. + * + * wrap OS-specific stuff + */ #ifndef OS_H #define OS_H -#ifdef __GNUG__ -#pragma interface -#endif +#include "support/strfwd.h" +#include + -#include "LString.h" - -/// Do we need a base class for this? -class os { -public: - // - enum shell_type { - UNIX, // Do we have to distinguish sh and csh? - CMD_EXE - }; - - // - static void init(int * argc, char ** argv[]); - - // - static string binpath() {return binpath_;} - - // - static string binname() {return binname_;} - - // system_tempdir actually doesn't belong here. - // I put it here only to avoid a global variable. - static void setTmpDir(string p) {tmpdir_ = p;} - - // - static string getTmpDir() {return tmpdir_;} - - // - static string current_root(); - - // - static os::shell_type shell() {return _shell;} - - // DBCS aware! - static string::size_type common_path(string const &p1, - string const &p2); - - // no-op on UNIX, '\\'->'/' on OS/2 and Win32, ':'->'/' on MacOS, etc. - static string slashify_path(string p); - // converts a host OS path to unix style - static string external_path(string const &p); - // converts a unix path to host OS style - static string internal_path(string const &p); - // is path absolute? - static bool is_absolute_path(string const & p); - // returns a string suitable to be passed to fopen when - // reading a file - static char const * read_mode(); - // same for popen(). - static char const * popen_read_mode(); - // - static void warn(string mesg); -private: - static string binpath_; - static string binname_; - static string tmpdir_; - static os::shell_type _shell; - // Used only on OS/2 to determine file system encoding. - static unsigned long cp_; - - // Never initialize static variables in the header! - // Anyway I bet this class will never be constructed. - os() {}; - - // Ignore warning! - ~os() {}; +namespace lyx { +namespace support { +namespace os { + +enum shell_type { + UNIX, // Do we have to distinguish sh and csh? + CMD_EXE +}; +enum path_case { + CASE_UNCHANGED, + CASE_ADJUSTED }; +enum file_access { + EXISTING, + CREATE +}; + +/// Do some work just once. +void init(int argc, char * argv[]); + +/// Returns the i-th program argument in utf8 encoding. +std::string utf8_argv(int i); + +/// Removes from the internal copy \p num program arguments starting from \p i. +void remove_internal_args(int i, int num); + +/// Returns the name of the NULL device (/dev/null, null). +std::string const & nulldev(); + +/// Returns "/" on *nix, "C:/", etc on Windows. +std::string current_root(); + +/// +shell_type shell(); + +/// Returns no. of minutes allowed for a command to complete. +int timeout_min(); + +/// Name of the python interpreter +/// @param reset True if the python path should be recomputed +std::string const python(bool reset = false); + +/// +bool isFilesystemCaseSensitive(); + +/// Extract the path common to both @c p1 and @c p2. DBCS aware! +/// \p p1 and \p p2 are encoded in ucs4, \returns the index to the end of +/// the last matching path component (the index may be pointing after the +/// end of @c p1 or @c p2 if their last char is not the path separator). +std::size_t common_path(docstring const & p1, docstring const & p2); + +/// Converts a unix style path to host OS style. +/// \p p and the return value are encoded in utf8. +std::string external_path(std::string const & p); + +/// Converts a host OS style path to unix style. +/// \p p and the return value are encoded in utf8. +std::string internal_path(std::string const & p); + +/// Converts a host OS style path to a unicode safe unix style. +/// On Windows, this is achieved by using the short form of the path, +/// which can be safely passed to standard I/O functions expecting narrow +/// char paths even when the path contains non-ascii chars. +/// As the short form is only available for existing files, if the file is +/// to be accessed for writing, \param how should be set to CREATE. +/// \p p and the return value are encoded in utf8. +std::string safe_internal_path(std::string const & p, file_access how = EXISTING); + +/// Converts a unix style path list to host OS style. +/// \p p and the return value are encoded in utf8. +std::string external_path_list(std::string const & p); + +/// Converts a host OS style path list to unix style. +/// \p p and the return value are encoded in utf8. +std::string internal_path_list(std::string const & p); + +/** + * Converts a unix style path into a form suitable for inclusion in a LaTeX + * document. + * \p p is encoded in utf8. + * Caution: This function handles only the OS specific part of that task. + * Never use it directly, use lyx::support::latex_path instead. + */ +std::string latex_path(std::string const & p); + +/** + * Converts a platform style path list into a form suitable for the TeX engine. + * \p p is encoded in utf8. + */ +std::string latex_path_list(std::string const & p); + +/// Checks if the format string is suitable on the OS +bool is_valid_strftime(std::string const & p); + +/** Returns a string suitable to be passed to popen when + * reading a file. + */ +char const * popen_read_mode(); + +enum path_type { + PLATFORM, + TEXENGINE +}; + +/** The character used to separate paths for platform environment variables + * (such as PATH) or for the TeX engine. + */ +char path_separator(path_type type = PLATFORM); + +/** If @c use_windows_paths is true, LyX will output Windows-style paths to + * latex files rather than posix ones. Obviously, this option is used only + * under Windows. + */ +void windows_style_tex_paths(bool use_windows_paths); + +enum auto_open_mode { + VIEW, + EDIT +}; + +/** Check whether or not a file can be opened by a default viewer or editor. + * \param extension (without leading .) + * \param mode can be opened in VIEW or EDIT mode + * \returns whether or not the format can be opened according to \p mode + */ +bool canAutoOpenFile(std::string const & ext, auto_open_mode const mode); + +/** View or edit a file with the default viewer or editor. + * \param filename file to open (encoded in utf8) + * \param mode open in VIEW or EDIT mode + * \returns whether or not the file is viewed (or edited) successfully. + */ +bool autoOpenFile(std::string const & filename, auto_open_mode const mode, + std::string const & path = empty_string()); + +/** Resolves a path such that it does not contain '.', '..', or symbolic links. + * \p path and the return value are encoded in utf8. + */ +std::string real_path(std::string const & path); + +/** Checks whether \param path starts with \param pre, accounting for case + * insensitive file systems. + */ +bool path_prefix_is(std::string const & path, std::string const & pre); + +/** Checks whether \param path starts with \param pre, accounting for case + * insensitive file systems. If true, the file system is case insensitive, + * and \param how == CASE_ADJUSTED, the case of the matching prefix in + * @c path is made equal to that of @c pre. + */ +bool path_prefix_is(std::string & path, std::string const & pre, path_case how = CASE_UNCHANGED); + +} // namespace os +} // namespace support +} // namespace lyx + #endif