]> git.lyx.org Git - lyx.git/blobdiff - src/LaTeX.cpp
Added Liviu Andronic, and modified generate_contributions.py to match what was in...
[lyx.git] / src / LaTeX.cpp
index b5802420294ccc08fa3b3d179150fb6c921ecbf6..1910b1dc7a7c317f77f9549bad4d5109b86ad10c 100644 (file)
 
 #include "BufferList.h"
 #include "LaTeX.h"
-#include "gettext.h"
 #include "LyXRC.h"
-#include "debug.h"
 #include "DepTable.h"
 
-#include "support/filetools.h"
+#include "support/debug.h"
 #include "support/convert.h"
+#include "support/FileName.h"
+#include "support/filetools.h"
+#include "support/gettext.h"
 #include "support/lstrings.h"
-#include "support/lyxlib.h"
 #include "support/Systemcall.h"
 #include "support/os.h"
 
-#include <boost/filesystem/operations.hpp>
-#include <boost/filesystem/path.hpp>
 #include <boost/regex.hpp>
 
 #include <fstream>
 using boost::regex;
 using boost::smatch;
 
-#ifndef CXX_GLOBAL_CSTD
-using std::sscanf;
-#endif
-
-using std::endl;
-using std::getline;
-using std::string;
-using std::ifstream;
-using std::set;
-using std::vector;
-
+using namespace std;
+using namespace lyx::support;
 
 namespace lyx {
 
-using support::absolutePath;
-using support::bformat;
-using support::changeExtension;
-using support::contains;
-using support::FileName;
-using support::findtexfile;
-using support::getcwd;
-using support::makeAbsPath;
-using support::onlyFilename;
-using support::prefixIs;
-using support::quoteName;
-using support::removeExtension;
-using support::rtrim;
-using support::rsplit;
-using support::split;
-using support::subst;
-using support::suffixIs;
-using support::Systemcall;
-using support::unlink;
-using support::trim;
-
 namespace os = support::os;
-namespace fs = boost::filesystem;
 
 // TODO: in no particular order
 // - get rid of the call to
@@ -151,29 +118,29 @@ void LaTeX::deleteFilesOnError() const
        // What files do we have to delete?
 
        // This will at least make latex do all the runs
-       unlink(depfile);
+       depfile.removeFile();
 
        // but the reason for the error might be in a generated file...
 
        // bibtex file
        FileName const bbl(changeExtension(file.absFilename(), ".bbl"));
-       unlink(bbl);
+       bbl.removeFile();
 
        // makeindex file
        FileName const ind(changeExtension(file.absFilename(), ".ind"));
-       unlink(ind);
+       ind.removeFile();
 
        // nomencl file
        FileName const nls(changeExtension(file.absFilename(), ".nls"));
-       unlink(nls);
+       nls.removeFile();
 
        // nomencl file (old version of the package)
        FileName const gls(changeExtension(file.absFilename(), ".gls"));
-       unlink(gls);
+       gls.removeFile();
 
        // Also remove the aux file
        FileName const aux(changeExtension(file.absFilename(), ".aux"));
-       unlink(aux);
+       aux.removeFile();
 }
 
 
@@ -192,7 +159,7 @@ int LaTeX::run(TeXErrors & terr)
        bool rerun = false; // rerun requested
 
        // The class LaTeX does not know the temp path.
-       theBufferList().updateIncludedTeXfiles(getcwd().absFilename(),
+       theBufferList().updateIncludedTeXfiles(FileName::getcwd().absFilename(),
                runparams);
 
        // Never write the depfile if an error was encountered.
@@ -213,12 +180,12 @@ int LaTeX::run(TeXErrors & terr)
        //             remake the dependency file.
        //
 
-       bool had_depfile = fs::exists(depfile.toFilesystemEncoding());
+       bool had_depfile = depfile.exists();
        bool run_bibtex = false;
        FileName const aux_file(changeExtension(file.absFilename(), "aux"));
 
        if (had_depfile) {
-               LYXERR(Debug::DEPEND) << "Dependency file exists" << endl;
+               LYXERR(Debug::DEPEND, "Dependency file exists");
                // Read the dep file:
                had_depfile = head.read(depfile);
        }
@@ -230,24 +197,21 @@ int LaTeX::run(TeXErrors & terr)
                // have aborted on error last time... in which cas we need
                // to re-run latex and collect the error messages
                // (even if they are the same).
-               if (!fs::exists(output_file.toFilesystemEncoding())) {
-                       LYXERR(Debug::DEPEND)
-                               << "re-running LaTeX because output file doesn't exist."
-                               << endl;
+               if (!output_file.exists()) {
+                       LYXERR(Debug::DEPEND,
+                               "re-running LaTeX because output file doesn't exist.");
                } else if (!head.sumchange()) {
-                       LYXERR(Debug::DEPEND) << "return no_change" << endl;
+                       LYXERR(Debug::DEPEND, "return no_change");
                        return NO_CHANGE;
                } else {
-                       LYXERR(Debug::DEPEND)
-                               << "Dependency file has changed" << endl;
+                       LYXERR(Debug::DEPEND, "Dependency file has changed");
                }
 
                if (head.extchanged(".bib") || head.extchanged(".bst"))
                        run_bibtex = true;
        } else
-               LYXERR(Debug::DEPEND)
-                       << "Dependency file does not exist, or has wrong format"
-                       << endl;
+               LYXERR(Debug::DEPEND,
+                       "Dependency file does not exist, or has wrong format");
 
        /// We scan the aux file even when had_depfile = false,
        /// because we can run pdflatex on the file after running latex on it,
@@ -257,13 +221,13 @@ int LaTeX::run(TeXErrors & terr)
                bibtex_info_old = scanAuxFiles(aux_file);
 
        ++count;
-       LYXERR(Debug::LATEX) << "Run #" << count << endl;
+       LYXERR(Debug::LATEX, "Run #" << count);
        message(runMessage(count));
 
        startscript();
        scanres = scanLogFile(terr);
        if (scanres & ERROR_RERUN) {
-               LYXERR(Debug::LATEX) << "Rerunning LaTeX" << endl;
+               LYXERR(Debug::LATEX, "Rerunning LaTeX");
                startscript();
                scanres = scanLogFile(terr);
        }
@@ -291,13 +255,12 @@ int LaTeX::run(TeXErrors & terr)
        // memoir (at least) writes an empty *idx file in the first place.
        // A second latex run is needed.
        FileName const idxfile(changeExtension(file.absFilename(), ".idx"));
-       rerun = fs::exists(idxfile.toFilesystemEncoding()) &&
-               fs::is_empty(idxfile.toFilesystemEncoding());
+       rerun = idxfile.exists() && idxfile.isFileEmpty();
 
        // run makeindex
        if (head.haschanged(idxfile)) {
                // no checks for now
-               LYXERR(Debug::LATEX) << "Running MakeIndex." << endl;
+               LYXERR(Debug::LATEX, "Running MakeIndex.");
                message(_("Running MakeIndex."));
                // onlyFilename() is needed for cygwin
                rerun |= runMakeIndex(onlyFilename(idxfile.absFilename()),
@@ -317,7 +280,7 @@ int LaTeX::run(TeXErrors & terr)
                // "\bibdata" and/or "\bibstyle". If one of those
                // tags is found -> run bibtex and set rerun = true;
                // no checks for now
-               LYXERR(Debug::LATEX) << "Running BibTeX." << endl;
+               LYXERR(Debug::LATEX, "Running BibTeX.");
                message(_("Running BibTeX."));
                updateBibtexDependencies(head, bibtex_info);
                rerun |= runBibTeX(bibtex_info);
@@ -343,11 +306,8 @@ int LaTeX::run(TeXErrors & terr)
        if (rerun || head.sumchange()) {
                rerun = false;
                ++count;
-               LYXERR(Debug::DEPEND)
-                       << "Dep. file has changed or rerun requested"
-                       << endl;
-               LYXERR(Debug::LATEX)
-                       << "Run #" << count << endl;
+               LYXERR(Debug::DEPEND, "Dep. file has changed or rerun requested");
+               LYXERR(Debug::LATEX, "Run #" << count);
                message(runMessage(count));
                startscript();
                scanres = scanLogFile(terr);
@@ -360,9 +320,7 @@ int LaTeX::run(TeXErrors & terr)
                deplog(head); // reads the latex log
                head.update();
        } else {
-               LYXERR(Debug::DEPEND)
-                       << "Dep. file has NOT changed"
-                       << endl;
+               LYXERR(Debug::DEPEND, "Dep. file has NOT changed");
        }
 
        // 1.5
@@ -376,7 +334,7 @@ int LaTeX::run(TeXErrors & terr)
        // run makeindex if the <file>.idx has changed or was generated.
        if (head.haschanged(idxfile)) {
                // no checks for now
-               LYXERR(Debug::LATEX) << "Running MakeIndex." << endl;
+               LYXERR(Debug::LATEX, "Running MakeIndex.");
                message(_("Running MakeIndex."));
                // onlyFilename() is needed for cygwin
                rerun = runMakeIndex(onlyFilename(changeExtension(
@@ -405,7 +363,7 @@ int LaTeX::run(TeXErrors & terr)
                // MAX_RUNS are reached.
                rerun = false;
                ++count;
-               LYXERR(Debug::LATEX) << "Run #" << count << endl;
+               LYXERR(Debug::LATEX, "Run #" << count);
                message(runMessage(count));
                startscript();
                scanres = scanLogFile(terr);
@@ -420,7 +378,7 @@ int LaTeX::run(TeXErrors & terr)
 
        // Write the dependencies to file.
        head.write(depfile);
-       LYXERR(Debug::LATEX) << "Done." << endl;
+       LYXERR(Debug::LATEX, "Done.");
        return scanres;
 }
 
@@ -439,9 +397,8 @@ int LaTeX::startscript()
 bool LaTeX::runMakeIndex(string const & f, OutputParams const & runparams,
                         string const & params)
 {
-       LYXERR(Debug::LATEX)
-               << "idx file has been made, running makeindex on file "
-               << f << endl;
+       LYXERR(Debug::LATEX,
+               "idx file has been made, running makeindex on file " << f);
        string tmp = lyxrc.index_command + ' ';
 
        tmp = subst(tmp, "$$lang", runparams.document_language);
@@ -457,7 +414,7 @@ bool LaTeX::runMakeIndexNomencl(FileName const & file,
                OutputParams const & runparams,
                string const & nlo, string const & nls)
 {
-       LYXERR(Debug::LATEX) << "Running MakeIndex for nomencl." << endl;
+       LYXERR(Debug::LATEX, "Running MakeIndex for nomencl.");
        message(_("Running MakeIndex for nomencl."));
        // onlyFilename() is needed for cygwin
        string const nomenclstr = " -s nomencl.ist -o "
@@ -480,7 +437,7 @@ LaTeX::scanAuxFiles(FileName const & file)
                FileName const file2(basename
                        + '.' + convert<string>(i)
                        + ".aux");
-               if (!fs::exists(file2.toFilesystemEncoding()))
+               if (!file2.exists())
                        break;
                result.push_back(scanAuxFile(file2));
        }
@@ -499,7 +456,7 @@ Aux_Info const LaTeX::scanAuxFile(FileName const & file)
 
 void LaTeX::scanAuxFile(FileName const & file, Aux_Info & aux_info)
 {
-       LYXERR(Debug::LATEX) << "Scanning aux file: " << file << endl;
+       LYXERR(Debug::LATEX, "Scanning aux file: " << file);
 
        ifstream ifs(file.toFilesystemEncoding().c_str());
        string token;
@@ -519,8 +476,7 @@ void LaTeX::scanAuxFile(FileName const & file, Aux_Info & aux_info)
                        while (!data.empty()) {
                                string citation;
                                data = split(data, citation, ',');
-                               LYXERR(Debug::LATEX) << "Citation: "
-                                                    << citation << endl;
+                               LYXERR(Debug::LATEX, "Citation: " << citation);
                                aux_info.citations.insert(citation);
                        }
                } else if (regex_match(token, sub, reg2)) {
@@ -531,8 +487,7 @@ void LaTeX::scanAuxFile(FileName const & file, Aux_Info & aux_info)
                                string database;
                                data = split(data, database, ',');
                                database = changeExtension(database, "bib");
-                               LYXERR(Debug::LATEX) << "BibTeX database: `"
-                                                    << database << '\'' << endl;
+                               LYXERR(Debug::LATEX, "BibTeX database: `" << database << '\'');
                                aux_info.databases.insert(database);
                        }
                } else if (regex_match(token, sub, reg3)) {
@@ -540,8 +495,7 @@ void LaTeX::scanAuxFile(FileName const & file, Aux_Info & aux_info)
                        // token is now the style file
                        // pass it to the helper
                        style = changeExtension(style, "bst");
-                       LYXERR(Debug::LATEX) << "BibTeX style: `"
-                                            << style << '\'' << endl;
+                       LYXERR(Debug::LATEX, "BibTeX style: `" << style << '\'');
                        aux_info.styles.insert(style);
                } else if (regex_match(token, sub, reg4)) {
                        string const file2 = sub.str(1);
@@ -607,9 +561,11 @@ int LaTeX::scanLogFile(TeXErrors & terr)
        int retval = NO_ERRORS;
        string tmp =
                onlyFilename(changeExtension(file.absFilename(), ".log"));
-       LYXERR(Debug::LATEX) << "Log file: " << tmp << endl;
+       LYXERR(Debug::LATEX, "Log file: " << tmp);
        FileName const fn = FileName(makeAbsPath(tmp));
        ifstream ifs(fn.toFilesystemEncoding().c_str());
+       bool fle_style = false;
+       static regex file_line_error(".+\\.\\D+:[0-9]+: (.+)");
 
        string token;
        while (getline(ifs, token)) {
@@ -619,22 +575,31 @@ int LaTeX::scanLogFile(TeXErrors & terr)
                // \r's afterwards, since we need to remove them anyway.
                token = subst(token, '\0', '\r');
                token = subst(token, "\r", "");
+               smatch sub;
 
-               LYXERR(Debug::LATEX) << "Log line: " << token << endl;
+               LYXERR(Debug::LATEX, "Log line: " << token);
 
                if (token.empty())
                        continue;
 
+               if (contains(token, "file:line:error style messages enabled"))
+                       fle_style = true;
+
                if (prefixIs(token, "LaTeX Warning:") ||
                    prefixIs(token, "! pdfTeX warning")) {
                        // Here shall we handle different
                        // types of warnings
                        retval |= LATEX_WARNING;
-                       LYXERR(Debug::LATEX) << "LaTeX Warning." << endl;
+                       LYXERR(Debug::LATEX, "LaTeX Warning.");
                        if (contains(token, "Rerun to get cross-references")) {
                                retval |= RERUN;
-                               LYXERR(Debug::LATEX)
-                                       << "We should rerun." << endl;
+                               LYXERR(Debug::LATEX, "We should rerun.");
+                       // package clefval needs 2 latex runs before bibtex
+                       } else if (contains(token, "Value of")
+                                  && contains(token, "on page")
+                                  && contains(token, "undefined")) {
+                               retval |= ERROR_RERUN;
+                               LYXERR(Debug::LATEX, "Force rerun.");
                        } else if (contains(token, "Citation")
                                   && contains(token, "on page")
                                   && contains(token, "undefined")) {
@@ -656,24 +621,27 @@ int LaTeX::scanLogFile(TeXErrors & terr)
                                   contains(token, "Rerun to get")) {
                                // at least longtable.sty and bibtopic.sty
                                // might use this.
-                               LYXERR(Debug::LATEX)
-                                       << "We should rerun." << endl;
+                               LYXERR(Debug::LATEX, "We should rerun.");
                                retval |= RERUN;
                        }
                } else if (token[0] == '(') {
                        if (contains(token, "Rerun LaTeX") ||
                            contains(token, "Rerun to get")) {
                                // Used by natbib
-                               LYXERR(Debug::LATEX)
-                                       << "We should rerun." << endl;
+                               LYXERR(Debug::LATEX, "We should rerun.");
                                retval |= RERUN;
                        }
-               } else if (prefixIs(token, "! ")) {
-                       // Ok, we have something that looks like a TeX Error
-                       // but what do we really have.
+               } else if (prefixIs(token, "! ") ||
+                          fle_style && regex_match(token, sub, file_line_error)) {
+                          // Ok, we have something that looks like a TeX Error
+                          // but what do we really have.
 
                        // Just get the error description:
-                       string desc(token, 2);
+                       string desc;
+                       if (prefixIs(token, "! "))
+                               desc = string(token, 2);
+                       else if (fle_style)
+                               desc = sub.str();
                        if (contains(token, "LaTeX Error:"))
                                retval |= LATEX_ERROR;
                        // get the next line
@@ -708,10 +676,8 @@ int LaTeX::scanLogFile(TeXErrors & terr)
                                        errstr += "\n";
                                        getline(ifs, tmp);
                                }
-                               LYXERR(Debug::LATEX)
-                                       << "line: " << line << '\n'
-                                       << "Desc: " << desc << '\n'
-                                       << "Text: " << errstr << endl;
+                               LYXERR(Debug::LATEX, "line: " << line << '\n'
+                                       << "Desc: " << desc << '\n' << "Text: " << errstr);
                                if (line == last_line)
                                        ++line_count;
                                else {
@@ -752,38 +718,16 @@ int LaTeX::scanLogFile(TeXErrors & terr)
                        }
                }
        }
-       LYXERR(Debug::LATEX) << "Log line: " << token << endl;
+       LYXERR(Debug::LATEX, "Log line: " << token);
        return retval;
 }
 
 
 namespace {
 
-/**
- * Wrapper around fs::exists that can handle invalid file names.
- * In theory we could test with fs::native whether a filename is valid
- * before calling fs::exists, but in practice it is unusable: On windows it
- * does not allow spaces, and on unix it does not allow absolute file names.
- * This function has the disadvantage that it catches also other errors than
- * invalid names, but for dependency checking we can live with that.
- */
-bool exists(FileName const & possible_name) {
-       try {
-               return fs::exists(possible_name.toFilesystemEncoding());
-       }
-       catch (fs::filesystem_error const & fe) {
-               LYXERR(Debug::DEPEND) << "Got error `" << fe.what()
-                       << "' while checking whether file `" << possible_name
-                       << "' exists." << endl;
-               return false;
-       }
-}
-
-
 bool insertIfExists(FileName const & absname, DepTable & head)
 {
-       if (exists(absname) &&
-           !fs::is_directory(absname.toFilesystemEncoding())) {
+       if (absname.exists() && !absname.isDirectory()) {
                head.insert(absname, true);
                return true;
        }
@@ -796,7 +740,7 @@ bool handleFoundFile(string const & ff, DepTable & head)
        // convert from native os path to unix path
        string foundfile = os::internal_path(trim(ff));
 
-       LYXERR(Debug::DEPEND) << "Found file: " << foundfile << endl;
+       LYXERR(Debug::DEPEND, "Found file: " << foundfile);
 
        // Ok now we found a file.
        // Now we should make sure that this is a file that we can
@@ -807,13 +751,12 @@ bool handleFoundFile(string const & ff, DepTable & head)
        // (1) foundfile is an
        //     absolute path and should
        //     be inserted.
-       if (absolutePath(foundfile)) {
-               LYXERR(Debug::DEPEND) << "AbsolutePath file: "
-                                     << foundfile << endl;
+       FileName absname(foundfile);
+       if (absname.isAbsolute()) {
+               LYXERR(Debug::DEPEND, "AbsolutePath file: " << foundfile);
                // On initial insert we want to do the update at once
                // since this file cannot be a file generated by
                // the latex run.
-               FileName absname(foundfile);
                if (!insertIfExists(absname, head)) {
                        // check for spaces
                        string strippedfile = foundfile;
@@ -836,11 +779,11 @@ bool handleFoundFile(string const & ff, DepTable & head)
        }
 
        string onlyfile = onlyFilename(foundfile);
-       FileName absname(makeAbsPath(onlyfile));
+       absname = makeAbsPath(onlyfile);
 
        // check for spaces
        while (contains(foundfile, ' ')) {
-               if (exists(absname))
+               if (absname.exists())
                        // everything o.k.
                        break;
                else {
@@ -848,7 +791,7 @@ bool handleFoundFile(string const & ff, DepTable & head)
                        // marks; those have to be removed
                        string unquoted = subst(foundfile, "\"", "");
                        absname = makeAbsPath(unquoted);
-                       if (exists(absname))
+                       if (absname.exists())
                                break;
                        // strip off part after last space and try again
                        string strippedfile;
@@ -862,38 +805,26 @@ bool handleFoundFile(string const & ff, DepTable & head)
 
        // (2) foundfile is in the tmpdir
        //     insert it into head
-       if (exists(absname) &&
-           !fs::is_directory(absname.toFilesystemEncoding())) {
+       if (absname.exists() && !absname.isDirectory()) {
                // FIXME: This regex contained glo, but glo is used by the old
                // version of nomencl.sty. Do we need to put it back?
-               static regex unwanted("^.*\\.(aux|log|dvi|bbl|ind)$");
+               static regex const unwanted("^.*\\.(aux|log|dvi|bbl|ind)$");
                if (regex_match(onlyfile, unwanted)) {
-                       LYXERR(Debug::DEPEND)
-                               << "We don't want "
-                               << onlyfile
-                               << " in the dep file"
-                               << endl;
+                       LYXERR(Debug::DEPEND, "We don't want " << onlyfile
+                               << " in the dep file");
                } else if (suffixIs(onlyfile, ".tex")) {
                        // This is a tex file generated by LyX
                        // and latex is not likely to change this
                        // during its runs.
-                       LYXERR(Debug::DEPEND)
-                               << "Tmpdir TeX file: "
-                               << onlyfile
-                               << endl;
+                       LYXERR(Debug::DEPEND, "Tmpdir TeX file: " << onlyfile);
                        head.insert(absname, true);
                } else {
-                       LYXERR(Debug::DEPEND)
-                               << "In tmpdir file:"
-                               << onlyfile
-                               << endl;
+                       LYXERR(Debug::DEPEND, "In tmpdir file:" << onlyfile);
                        head.insert(absname);
                }
                return true;
        } else {
-               LYXERR(Debug::DEPEND)
-                       << "Not a file or we are unable to find it."
-                       << endl;
+               LYXERR(Debug::DEPEND, "Not a file or we are unable to find it.");
                return false;
        }
 }
@@ -901,12 +832,11 @@ bool handleFoundFile(string const & ff, DepTable & head)
 
 bool checkLineBreak(string const & ff, DepTable & head)
 {
-       if (contains(ff, '.'))
-               // if we have a dot, we let handleFoundFile decide
-               return handleFoundFile(ff, head);
-       else
-               // else, we suspect a line break
+       if (!contains(ff, '.'))
                return false;
+
+       // if we have a dot, we let handleFoundFile decide
+       return handleFoundFile(ff, head);
 }
 
 } // anon namespace
@@ -921,28 +851,28 @@ void LaTeX::deplog(DepTable & head)
        string const logfile =
                onlyFilename(changeExtension(file.absFilename(), ".log"));
 
-       static regex reg1("File: (.+).*");
-       static regex reg2("No file (.+)(.).*");
-       static regex reg3("\\\\openout[0-9]+.*=.*`(.+)(..).*");
+       static regex const reg1("File: (.+).*");
+       static regex const reg2("No file (.+)(.).*");
+       static regex const reg3("\\\\openout[0-9]+.*=.*`(.+)(..).*");
        // If an index should be created, MikTex does not write a line like
        //    \openout# = 'sample.idx'.
        // but instead only a line like this into the log:
        //   Writing index file sample.idx
-       static regex reg4("Writing index file (.+).*");
+       static regex const reg4("Writing index file (.+).*");
        // files also can be enclosed in <...>
-       static regex reg5("<([^>]+)(.).*");
-       static regex regoldnomencl("Writing glossary file (.+).*");
-       static regex regnomencl("Writing nomenclature file (.+).*");
+       static regex const reg5("<([^>]+)(.).*");
+       static regex const regoldnomencl("Writing glossary file (.+).*");
+       static regex const regnomencl("Writing nomenclature file (.+).*");
        // If a toc should be created, MikTex does not write a line like
        //    \openout# = `sample.toc'.
        // but only a line like this into the log:
        //    \tf@toc=\write#
        // This line is also written by tetex.
        // This line is not present if no toc should be created.
-       static regex miktexTocReg("\\\\tf@toc=\\\\write.*");
-       static regex reg6(".*\\([^)]+.*");
+       static regex const miktexTocReg("\\\\tf@toc=\\\\write.*");
+       static regex const reg6(".*\\([^)]+.*");
 
-       FileName const fn(makeAbsPath(logfile));
+       FileName const fn = makeAbsPath(logfile);
        ifstream ifs(fn.toFilesystemEncoding().c_str());
        string lastline;
        while (ifs) {
@@ -969,8 +899,8 @@ void LaTeX::deplog(DepTable & head)
                // Here we exclude some cases where we are sure
                // that there is no continued filename
                if (!lastline.empty()) {
-                       static regex package_info("Package \\w+ Info: .*");
-                       static regex package_warning("Package \\w+ Warning: .*");
+                       static regex const package_info("Package \\w+ Info: .*");
+                       static regex const package_warning("Package \\w+ Warning: .*");
                        if (prefixIs(token, "File:") || prefixIs(token, "(Font)")
                            || prefixIs(token, "Package:")
                            || prefixIs(token, "Language:")