Fix converters in our scripts directory

* src/graphics/GraphicsConverter.C
	(build_script): quote filenames in the python script properly
	(build_script):
	(build_script):

	* src/support/filetools.[Ch]
	(quoteName): Add quote_style argument and quoting of python filenames
	(libScriptSearch): Add quote_style argument

	* src/support/filetools.C
	(quote_style): New enum to specify the quoting style


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@14978 a592a061-630c-0410-9148-cb99ea01b6c8

src/graphics/GraphicsConverter.C

@@ -39,6 +39,7 @@ using support::libScriptSearch;
 using support::onlyPath;
 using support::onlyFilename;
 using support::quoteName;
+using support::quote_python;
 using support::subst;
 using support::tempName;
 using support::unlink;
@@ -327,9 +328,8 @@ void build_script(string const & from_file,
 	// in python, but the converters might be shell scripts and have more
 	// troubles with it.
 	string outfile = changeExtension(to_base, getExtension(from_file));
-	script << "infile = '"
-	       << subst(subst(from_file, "\\", "\\\\"), "'", "\\'") << "'\n"
-	          "outfile = " << quoteName(outfile) << "\n"
+	script << "infile = " << quoteName(from_file, quote_python) << "\n"
+	          "outfile = " << quoteName(outfile, quote_python) << "\n"
 	          "shutil.copy(infile, outfile)\n";
 
 	if (edgepath.empty()) {
@@ -337,13 +337,18 @@ void build_script(string const & from_file,
 		// converter path from from_format to to_format, so we use
 		// the default converter.
 		script << "infile = outfile\n"
-		       << "outfile = " << quoteName(to_file) << '\n';
+		       << "outfile = " << quoteName(to_file, quote_python)
+		       << '\n';
 
 		ostringstream os;
-		os << support::os::python() << " \""
-		   << libFileSearch("scripts", "convertDefault.py") << "\" ";
+		os << support::os::python() << ' '
+		   << libScriptSearch("$$s/scripts/convertDefault.py",
+		                      quote_python) << ' ';
 		if (!from_format.empty())
 			os << from_format << ':';
+		// The extra " quotes around infile and outfile are needed
+		// because the filename may contain spaces and it is used
+		// as argument of os.system().
 		os << "' + '\"' + infile + '\"' + ' "
 		   << to_format << ":' + '\"' + outfile + '\"' + '";
 		string const command = os.str();
@@ -373,21 +378,23 @@ void build_script(string const & from_file,
 		outfile = changeExtension(to_base, conv.To->extension());
 
 		// Store these names in the python script
-		script << "infile = "      << quoteName(infile) << '\n'
-		       << "infile_base = " << quoteName(infile_base) << '\n'
-		       << "outfile = "     << quoteName(outfile) << '\n';
+		script << "infile = "      << quoteName(infile, quote_python) << "\n"
+		          "infile_base = " << quoteName(infile_base, quote_python) << "\n"
+		          "outfile = "     << quoteName(outfile, quote_python) << '\n';
 
+		// See comment about extra " quotes above (although that
+		// applies only for the first loop run here).
 		string command = conv.command;
 		command = subst(command, token_from, "' + '\"' + infile + '\"' + '");
 		command = subst(command, token_base, "' + '\"' + infile_base + '\"' + '");
 		command = subst(command, token_to,   "' + '\"' + outfile + '\"' + '");
-		command = libScriptSearch(command);
+		command = libScriptSearch(command, quote_python);
 
 		build_conversion_command(command, script);
 	}
 
 	// Move the final outfile to to_file
-	script << move_file("outfile", quoteName(to_file));
+	script << move_file("outfile", quoteName(to_file, quote_python));
 	lyxerr[Debug::GRAPHICS] << "ready!" << endl;
 }
 

src/support/filetools.C

@@ -133,11 +133,26 @@ string const makeLatexName(string const & file)
 }
 
 
-string const quoteName(string const & name)
+string const quoteName(string const & name, quote_style style)
 {
+	switch(style) {
+	case quote_shell:
+		// This does not work for filenames containing " (windows)
+		// or ' (all other OSes). This can't be changed easily, since
+		// we would need to adapt the command line parser in
+		// Forkedcall::generateChild. Therefore we don't pass user
+		// filenames to child processes if possible. We store them in
+		// a python script instead, where we don't have these
+		// limitations.
 		return (os::shell() == os::UNIX) ?
 			'\'' + name + '\'':
 			'"' + name + '"';
+	case quote_python:
+		return "\"" + subst(subst(name, "\\", "\\\\"), "\"", "\\\"")
+		     + "\"";
+	}
+	// shut up stupid compiler
+	return string();
 }
 
 
@@ -313,7 +328,7 @@ string const i18nLibFileSearch(string const & dir, string const & name,
 }
 
 
-string const libScriptSearch(string const & command_in)
+string const libScriptSearch(string const & command_in, quote_style style)
 {
 	static string const token_scriptpath = "$$s/";
 
@@ -339,7 +354,7 @@ string const libScriptSearch(string const & command_in)
 	} else {
 		// Replace "$$s/foo/some_script" with "<path to>/some_script".
 		string::size_type const size_replace = size_script + 4;
-		command.replace(pos1, size_replace, quoteName(script));
+		command.replace(pos1, size_replace, quoteName(script, style));
 	}
 
 	return command;

src/support/filetools.h

@@ -100,13 +100,28 @@ i18nLibFileSearch(std::string const & dir,
 		  std::string const & name,
 		  std::string const & ext = std::string());
 
+/// How to quote a filename
+enum quote_style {
+	/** Quote for the (OS dependant) shell. This is needed for command
+	    line arguments of subprocesses. */
+	quote_shell,
+	/** Quote for python. Use this if you want to store a filename in a
+	    python script. Example: \code
+	    os << "infile = " << quoteName(filename) << '\\n';
+	    \endcode This uses double quotes, so that you can also use this
+	    to quote filenames as part of a string if the string is quoted
+	    with single quotes. */
+	quote_python
+};
+
 /** Takes a command such as "python $$s/scripts/convertDefault.py file.in file.out"
  *  and replaces "$$s/" with the path to the LyX support directory containing
  *  this script. If the script is not found, "$$s/" is removed. Executing the
  *  command will still fail, but the error message will make some sort of
  *  sense ;-)
  */
-std::string const libScriptSearch(std::string const & command);
+std::string const libScriptSearch(std::string const & command,
+		quote_style style = quote_shell);
 
 enum latex_path_extension {
 	PROTECT_EXTENSION,
@@ -144,8 +159,9 @@ std::string const latex_path(std::string const & path,
 /// Substitutes active latex characters with underscores in filename
 std::string const makeLatexName(std::string const & file);
 
-/// Put the name in quotes suitable for the current shell
-std::string const quoteName(std::string const & file);
+/** Put the name in quotes suitable for the current shell or python,
+    depending on \p style. */
+std::string const quoteName(std::string const & file, quote_style style = quote_shell);
 
 /// Add a filename to a path. Any path from filename is stripped first.
 std::string const addName(std::string const & path, std::string const & fname);