2 * \file LayoutFileList.cpp
3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Lars Gullik Bjønnes
9 * Full author contact details are available in file CREDITS.
14 #include "LayoutFile.h"
17 #include "FloatList.h"
19 #include "TextClass.h"
21 #include "support/debug.h"
22 #include "support/FileName.h"
23 #include "support/filetools.h"
24 #include "support/gettext.h"
26 #include <boost/bind.hpp>
27 #include <boost/regex.hpp>
32 using namespace lyx::support;
40 LayoutFile::LayoutFile(string const & fn, string const & cln,
41 string const & desc, bool texClassAvail )
46 texClassAvail_ = texClassAvail;
50 LayoutFileList & LayoutFileList::get()
52 static LayoutFileList baseclasslist;
57 bool LayoutFileList::haveClass(string const & classname) const
59 ClassMap::const_iterator it = classmap_.begin();
60 ClassMap::const_iterator en = classmap_.end();
61 for (; it != en; ++it) {
62 if (it->first == classname)
69 LayoutFile const & LayoutFileList::operator[](string const & classname) const
71 BOOST_ASSERT(haveClass(classname));
72 return *classmap_[classname];
77 LayoutFileList::operator[](string const & classname)
79 BOOST_ASSERT(haveClass(classname));
80 return *classmap_[classname];
84 // Reads LyX textclass definitions according to textclass config file
85 bool LayoutFileList::read()
88 FileName const real_file = libFileSearch("", "textclass.lst");
89 LYXERR(Debug::TCLASS, "Reading textclasses from `" << real_file << '\'');
91 if (real_file.empty()) {
92 lyxerr << "LayoutFileList::Read: unable to find "
94 << to_utf8(makeDisplayPath(real_file.absFilename(), 1000))
95 << "'. Exiting." << endl;
97 // This causes LyX to end... Not a desirable behaviour. Lgb
98 // What do you propose? That the user gets a file dialog
99 // and is allowed to hunt for the file? (Asger)
100 // more that we have a layout for minimal.cls statically
101 // compiled in... (Lgb)
104 if (!lex.setFile(real_file)) {
105 lyxerr << "LayoutFileList::Read: "
106 "lyxlex was not able to set file: "
107 << real_file << endl;
111 lyxerr << "LayoutFileList::Read: unable to open "
113 << to_utf8(makeDisplayPath(real_file.absFilename(), 1000))
114 << "'\nCheck your installation. LyX can't continue."
119 bool finished = false;
121 LYXERR(Debug::TCLASS, "Starting parsing of textclass.lst");
122 while (lex.isOK() && !finished) {
123 LYXERR(Debug::TCLASS, "\tline by line");
125 case Lexer::LEX_FEOF:
129 string const fname = lex.getString();
130 LYXERR(Debug::TCLASS, "Fname: " << fname);
132 string const clname = lex.getString();
133 LYXERR(Debug::TCLASS, "Clname: " << clname);
135 string const desc = lex.getString();
136 LYXERR(Debug::TCLASS, "Desc: " << desc);
138 bool avail = lex.getBool();
139 LYXERR(Debug::TCLASS, "Avail: " << avail);
140 // This code is run when we have
141 // fname, clname, desc, and avail
142 LayoutFile * tmpl = new LayoutFile(fname, clname, desc, avail);
143 if (lyxerr.debugging(Debug::TCLASS)) {
144 // only system layout files are loaded here so no
145 // buffer path is needed.
148 classmap_[fname] = tmpl;
154 LYXERR(Debug::TCLASS, "End of parsing of textclass.lst");
156 // lyx will start with an empty classmap_, but only reconfigure is allowed
157 // in this case. This gives users a second chance to configure lyx if
158 // initial configuration fails. (c.f. bug 2829)
159 if (classmap_.empty())
160 lyxerr << "LayoutFileList::Read: no textclasses found!"
166 std::vector<LayoutFileIndex> LayoutFileList::classList() const
168 std::vector<LayoutFileIndex> cl;
169 ClassMap::const_iterator it = classmap_.begin();
170 ClassMap::const_iterator en = classmap_.end();
171 for (; it != en; ++it)
172 cl.push_back(it->first);
177 void LayoutFileList::reset(LayoutFileIndex const & classname) {
178 BOOST_ASSERT(haveClass(classname));
179 LayoutFile * tc = classmap_[classname];
181 new LayoutFile(tc->name(), tc->latexname(), tc->description(),
182 tc->isTeXClassAvailable());
183 classmap_[classname] = tmpl;
188 string const LayoutFileList::localPrefix = "LOCAL:";
192 LayoutFileList::addLayoutFile(string const & textclass, string const & path)
194 // FIXME There is a bug here: 4593
196 // only check for textclass.layout file, .cls can be anywhere in $TEXINPUTS
197 // NOTE: latex class name is defined in textclass.layout, which can be
198 // different from textclass
199 string fullName = addName(path, textclass + ".layout");
200 string localIndex = localPrefix + fullName;
202 // if the local file has already been loaded, return it
203 if (haveClass(localIndex))
206 FileName const layout_file(fullName);
207 if (layout_file.exists()) {
208 LYXERR(Debug::TCLASS, "Adding class " << textclass << " from directory " << path);
209 // Read .layout file and get description, real latex classname etc
211 // This is a C++ version of function processLayoutFile in configure.py,
212 // which uses the following regex
213 // \Declare(LaTeX|DocBook)Class\s*(\[([^,]*)(,.*)*\])*\s*{(.*)}
214 ifstream ifs(layout_file.toFilesystemEncoding().c_str());
215 static regex const reg("^#\\s*\\\\Declare(LaTeX|DocBook)Class\\s*"
216 "(?:\\[([^,]*)(?:,.*)*\\])*\\s*\\{(.*)\\}\\s*");
218 while (getline(ifs, line)) {
219 // look for the \DeclareXXXClass line
221 if (regex_match(line, sub, reg)) {
222 // returns: whole string, classtype (not used here), class name, description
223 BOOST_ASSERT(sub.size() == 4);
224 // now, create a TextClass with description containing path information
225 string className(sub.str(2) == "" ? textclass : sub.str(2));
227 new LayoutFile(textclass, className, localIndex, true);
228 // This textclass is added on request so it will definitely be
229 // used. Load it now because other load() calls may fail if they
230 // are called in a context without buffer path information.
232 classmap_[localIndex] = tmpl;
237 // If .layout is not in local directory, or an invalid layout is found, return null
242 LayoutFileIndex defaultBaseclass()
244 if (LayoutFileList::get().haveClass("article"))
245 return string("article");
246 if (LayoutFileList::get().empty())
248 return LayoutFileList::get().classList().front();
253 // Reads the style files
256 LYXERR(Debug::TCLASS, "LyXSetStyle: parsing configuration...");
258 if (!LayoutFileList::get().read()) {
259 LYXERR(Debug::TCLASS, "LyXSetStyle: an error occured "
260 "during parsing.\n Exiting.");
264 LYXERR(Debug::TCLASS, "LyXSetStyle: configuration parsed.");