lyx_mirror/src/LaTeX.C
Martin Vermeer a566db1d51 Implement use of babel language in xindy.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@9061 a592a061-630c-0410-9148-cb99ea01b6c8
2004-10-07 15:21:03 +00:00

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/**
* \file LaTeX.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Alfredo Braunstein
* \author Lars Gullik Bjønnes
* \author Jean-Marc Lasgouttes
* \author Angus Leeming
* \author Dekel Tsur
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "LaTeX.h"
#include "bufferlist.h"
#include "gettext.h"
#include "lyxrc.h"
#include "debug.h"
#include "DepTable.h"
#include "support/filetools.h"
#include "support/FileInfo.h"
#include "support/tostr.h"
#include "support/lstrings.h"
#include "support/lyxlib.h"
#include "support/systemcall.h"
#include "support/os.h"
#include <boost/regex.hpp>
#include <fstream>
using lyx::support::AbsolutePath;
using lyx::support::bformat;
using lyx::support::ChangeExtension;
using lyx::support::contains;
using lyx::support::FileInfo;
using lyx::support::findtexfile;
using lyx::support::getcwd;
using lyx::support::OnlyFilename;
using lyx::support::prefixIs;
using lyx::support::QuoteName;
using lyx::support::rtrim;
using lyx::support::split;
using lyx::support::subst;
using lyx::support::suffixIs;
using lyx::support::Systemcall;
using lyx::support::unlink;
using lyx::support::trim;
namespace os = lyx::support::os;
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;
// TODO: in no particular order
// - get rid of the extern BufferList and the call to
// BufferList::updateIncludedTeXfiles, this should either
// be done before calling LaTeX::funcs or in a completely
// different way.
// - the makeindex style files should be taken care of with
// the dependency mechanism.
// - makeindex commandline options should be supported
// - somewhere support viewing of bibtex and makeindex log files.
// - we should perhaps also scan the bibtex log file
extern BufferList bufferlist;
namespace {
string runMessage(unsigned int count)
{
return bformat(_("Waiting for LaTeX run number %1$s"), tostr(count));
}
} // anon namespace
/*
* CLASS TEXERRORS
*/
void TeXErrors::insertError(int line, string const & error_desc,
string const & error_text)
{
Error newerr(line, error_desc, error_text);
errors.push_back(newerr);
}
bool operator==(Aux_Info const & a, Aux_Info const & o)
{
return a.aux_file == o.aux_file &&
a.citations == o.citations &&
a.databases == o.databases &&
a.styles == o.styles;
}
bool operator!=(Aux_Info const & a, Aux_Info const & o)
{
return !(a == o);
}
/*
* CLASS LaTeX
*/
LaTeX::LaTeX(string const & latex, OutputParams const & rp,
string const & f, string const & p)
: cmd(latex), file(f), path(p), runparams(rp)
{
num_errors = 0;
depfile = file + ".dep";
if (prefixIs(cmd, "pdf")) { // Do we use pdflatex ?
depfile += "-pdf";
output_file = ChangeExtension(file,".pdf");
} else {
output_file = ChangeExtension(file,".dvi");
}
}
void LaTeX::deleteFilesOnError() const
{
// currently just a dummy function.
// What files do we have to delete?
// This will at least make latex do all the runs
unlink(depfile);
// but the reason for the error might be in a generated file...
string const ofname = OnlyFilename(file);
// bibtex file
string const bbl = ChangeExtension(ofname, ".bbl");
unlink(bbl);
// makeindex file
string const ind = ChangeExtension(ofname, ".ind");
unlink(ind);
// Also remove the aux file
string const aux = ChangeExtension(ofname, ".aux");
unlink(aux);
}
int LaTeX::run(TeXErrors & terr)
// We know that this function will only be run if the lyx buffer
// has been changed. We also know that a newly written .tex file
// is always different from the previous one because of the date
// in it. However it seems safe to run latex (at least) on time each
// time the .tex file changes.
{
int scanres = NO_ERRORS;
unsigned int count = 0; // number of times run
num_errors = 0; // just to make sure.
unsigned int const MAX_RUN = 6;
DepTable head; // empty head
bool rerun = false; // rerun requested
// The class LaTeX does not know the temp path.
bufferlist.updateIncludedTeXfiles(getcwd(), runparams);
// Never write the depfile if an error was encountered.
// 0
// first check if the file dependencies exist:
// ->If it does exist
// check if any of the files mentioned in it have
// changed (done using a checksum).
// -> if changed:
// run latex once and
// remake the dependency file
// -> if not changed:
// just return there is nothing to do for us.
// ->if it doesn't exist
// make it and
// run latex once (we need to run latex once anyway) and
// remake the dependency file.
//
FileInfo fi(depfile);
bool had_depfile = fi.exist();
bool run_bibtex = false;
string aux_file = OnlyFilename(ChangeExtension(file, "aux"));
if (had_depfile) {
lyxerr[Debug::DEPEND] << "Dependency file exists" << endl;
// Read the dep file:
had_depfile = head.read(depfile);
}
if (had_depfile) {
// Update the checksums
head.update();
// Can't just check if anything has changed because it might 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 (!FileInfo(output_file).exist()) {
lyxerr[Debug::DEPEND]
<< "re-running LaTeX because output file doesn't exist." << endl;
} else if (!head.sumchange()) {
lyxerr[Debug::DEPEND] << "return no_change" << endl;
return NO_CHANGE;
} else {
lyxerr[Debug::DEPEND]
<< "Dependency file has changed" << endl;
}
if (head.extchanged(".bib") || head.extchanged(".bst"))
run_bibtex = true;
} else
lyxerr[Debug::DEPEND]
<< "Dependency file does not exist, or has wrong format" << endl;
/// We scan the aux file even when had_depfile = false,
/// because we can run pdflatex on the file after running latex on it,
/// in which case we will not need to run bibtex again.
vector<Aux_Info> bibtex_info_old;
if (!run_bibtex)
bibtex_info_old = scanAuxFiles(aux_file);
++count;
lyxerr[Debug::LATEX] << "Run #" << count << endl;
message(runMessage(count));
startscript();
scanres = scanLogFile(terr);
if (scanres & ERROR_RERUN) {
lyxerr[Debug::LATEX] << "Rerunning LaTeX" << endl;
startscript();
scanres = scanLogFile(terr);
}
if (scanres & ERRORS) {
deleteFilesOnError();
return scanres; // return on error
}
vector<Aux_Info> const bibtex_info = scanAuxFiles(aux_file);
if (!run_bibtex && bibtex_info_old != bibtex_info)
run_bibtex = true;
// update the dependencies.
deplog(head); // reads the latex log
head.update();
// 0.5
// At this point we must run external programs if needed.
// makeindex will be run if a .idx file changed or was generated.
// And if there were undefined citations or changes in references
// the .aux file is checked for signs of bibtex. Bibtex is then run
// if needed.
// run makeindex
if (head.haschanged(OnlyFilename(ChangeExtension(file, ".idx")))) {
// no checks for now
lyxerr[Debug::LATEX] << "Running MakeIndex." << endl;
message(_("Running MakeIndex."));
rerun = runMakeIndex(OnlyFilename(ChangeExtension(file, ".idx")), runparams);
}
// run bibtex
// if (scanres & UNDEF_CIT || scanres & RERUN || run_bibtex)
if (scanres & UNDEF_CIT || run_bibtex) {
// Here we must scan the .aux file and look for
// "\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;
message(_("Running BibTeX."));
updateBibtexDependencies(head, bibtex_info);
rerun |= runBibTeX(bibtex_info);
} else if (!had_depfile) {
/// If we run pdflatex on the file after running latex on it,
/// then we do not need to run bibtex, but we do need to
/// insert the .bib and .bst files into the .dep-pdf file.
updateBibtexDependencies(head, bibtex_info);
}
// 1
// we know on this point that latex has been run once (or we just
// returned) and the question now is to decide if we need to run
// it any more. This is done by asking if any of the files in the
// dependency file has changed. (remember that the checksum for
// a given file is reported to have changed if it just was created)
// -> if changed or rerun == true:
// run latex once more and
// update the dependency structure
// -> if not changed:
// we does nothing at this point
//
if (rerun || head.sumchange()) {
rerun = false;
++count;
lyxerr[Debug::DEPEND]
<< "Dep. file has changed or rerun requested" << endl;
lyxerr[Debug::LATEX]
<< "Run #" << count << endl;
message(runMessage(count));
startscript();
scanres = scanLogFile(terr);
if (scanres & ERRORS) {
deleteFilesOnError();
return scanres; // return on error
}
// update the depedencies
deplog(head); // reads the latex log
head.update();
} else {
lyxerr[Debug::DEPEND] << "Dep. file has NOT changed" << endl;
}
// 1.5
// The inclusion of files generated by external programs like
// makeindex or bibtex might have done changes to pagenumbereing,
// etc. And because of this we must run the external programs
// again to make sure everything is redone correctly.
// Also there should be no need to run the external programs any
// more after this.
// run makeindex if the <file>.idx has changed or was generated.
if (head.haschanged(OnlyFilename(ChangeExtension(file, ".idx")))) {
// no checks for now
lyxerr[Debug::LATEX] << "Running MakeIndex." << endl;
message(_("Running MakeIndex."));
rerun = runMakeIndex(OnlyFilename(ChangeExtension(file, ".idx")), runparams);
}
// 2
// we will only run latex more if the log file asks for it.
// or if the sumchange() is true.
// -> rerun asked for:
// run latex and
// remake the dependency file
// goto 2 or return if max runs are reached.
// -> rerun not asked for:
// just return (fall out of bottom of func)
//
while ((head.sumchange() || rerun || (scanres & RERUN))
&& count < MAX_RUN) {
// Yes rerun until message goes away, or until
// MAX_RUNS are reached.
rerun = false;
++count;
lyxerr[Debug::LATEX] << "Run #" << count << endl;
message(runMessage(count));
startscript();
scanres = scanLogFile(terr);
if (scanres & ERRORS) {
deleteFilesOnError();
return scanres; // return on error
}
// keep this updated
head.update();
}
// Write the dependencies to file.
head.write(depfile);
lyxerr[Debug::LATEX] << "Done." << endl;
return scanres;
}
int LaTeX::startscript()
{
#ifndef __EMX__
string tmp = cmd + ' ' + QuoteName(file) + " > /dev/null";
#else // cmd.exe (OS/2) causes SYS0003 error at "/dev/null"
string tmp = cmd + ' ' + file + " > nul";
#endif
Systemcall one;
return one.startscript(Systemcall::Wait, tmp);
}
bool LaTeX::runMakeIndex(string const & f, OutputParams const & runparams)
{
lyxerr[Debug::LATEX] << "idx file has been made,"
" running makeindex on file "
<< f << endl;
string tmp = lyxrc.index_command + " ";
tmp = subst(tmp, "$$lang", runparams.document_language);
tmp += QuoteName(f);
Systemcall one;
one.startscript(Systemcall::Wait, tmp);
return true;
}
vector<Aux_Info> const
LaTeX::scanAuxFiles(string const & file)
{
vector<Aux_Info> result;
result.push_back(scanAuxFile(file));
for (int i = 1; i < 1000; ++i) {
string file2 = ChangeExtension(file, "") + '.' + tostr(i)
+ ".aux";
FileInfo fi(file2);
if (!fi.exist())
break;
result.push_back(scanAuxFile(file2));
}
return result;
}
Aux_Info const LaTeX::scanAuxFile(string const & file)
{
Aux_Info result;
result.aux_file = file;
scanAuxFile(file, result);
return result;
}
void LaTeX::scanAuxFile(string const & file, Aux_Info & aux_info)
{
lyxerr[Debug::LATEX] << "Scanning aux file: " << file << endl;
ifstream ifs(file.c_str());
string token;
static regex const reg1("\\\\citation\\{([^}]+)\\}");
static regex const reg2("\\\\bibdata\\{([^}]+)\\}");
static regex const reg3("\\\\bibstyle\\{([^}]+)\\}");
static regex const reg4("\\\\@input\\{([^}]+)\\}");
while (getline(ifs, token)) {
token = rtrim(token, "\r");
smatch sub;
if (regex_match(token, sub, reg1)) {
string data = sub.str(1);
while (!data.empty()) {
string citation;
data = split(data, citation, ',');
lyxerr[Debug::LATEX] << "Citation: "
<< citation << endl;
aux_info.citations.insert(citation);
}
} else if (regex_match(token, sub, reg2)) {
string data = sub.str(1);
// data is now all the bib files separated by ','
// get them one by one and pass them to the helper
while (!data.empty()) {
string database;
data = split(data, database, ',');
database = ChangeExtension(database, "bib");
lyxerr[Debug::LATEX] << "BibTeX database: `"
<< database << '\'' << endl;
aux_info.databases.insert(database);
}
} else if (regex_match(token, sub, reg3)) {
string style = sub.str(1);
// token is now the style file
// pass it to the helper
style = ChangeExtension(style, "bst");
lyxerr[Debug::LATEX] << "BibTeX style: `"
<< style << '\'' << endl;
aux_info.styles.insert(style);
} else if (regex_match(token, sub, reg4)) {
string const file2 = sub.str(1);
scanAuxFile(file2, aux_info);
}
}
}
void LaTeX::updateBibtexDependencies(DepTable & dep,
vector<Aux_Info> const & bibtex_info)
{
// Since a run of Bibtex mandates more latex runs it is ok to
// remove all ".bib" and ".bst" files.
dep.remove_files_with_extension(".bib");
dep.remove_files_with_extension(".bst");
//string aux = OnlyFilename(ChangeExtension(file, ".aux"));
for (vector<Aux_Info>::const_iterator it = bibtex_info.begin();
it != bibtex_info.end(); ++it) {
for (set<string>::const_iterator it2 = it->databases.begin();
it2 != it->databases.end(); ++it2) {
string file = findtexfile(*it2, "bib");
if (!file.empty())
dep.insert(file, true);
}
for (set<string>::const_iterator it2 = it->styles.begin();
it2 != it->styles.end(); ++it2) {
string file = findtexfile(*it2, "bst");
if (!file.empty())
dep.insert(file, true);
}
}
}
bool LaTeX::runBibTeX(vector<Aux_Info> const & bibtex_info)
{
bool result = false;
for (vector<Aux_Info>::const_iterator it = bibtex_info.begin();
it != bibtex_info.end(); ++it) {
if (it->databases.empty())
continue;
result = true;
string tmp = lyxrc.bibtex_command + " ";
tmp += QuoteName(OnlyFilename(ChangeExtension(it->aux_file, string())));
Systemcall one;
one.startscript(Systemcall::Wait, tmp);
}
// Return whether bibtex was run
return result;
}
int LaTeX::scanLogFile(TeXErrors & terr)
{
int last_line = -1;
int line_count = 1;
int retval = NO_ERRORS;
string tmp = OnlyFilename(ChangeExtension(file, ".log"));
lyxerr[Debug::LATEX] << "Log file: " << tmp << endl;
ifstream ifs(tmp.c_str());
string token;
while (getline(ifs, token)) {
lyxerr[Debug::LATEX] << "Log line: " << token << endl;
if (token.empty())
continue;
if (prefixIs(token, "LaTeX Warning:")) {
// Here shall we handle different
// types of warnings
retval |= LATEX_WARNING;
lyxerr[Debug::LATEX] << "LaTeX Warning." << endl;
if (contains(token, "Rerun to get cross-references")) {
retval |= RERUN;
lyxerr[Debug::LATEX]
<< "We should rerun." << endl;
} else if (contains(token, "Citation")
&& contains(token, "on page")
&& contains(token, "undefined")) {
retval |= UNDEF_CIT;
}
} else if (prefixIs(token, "Package")) {
// Package warnings
retval |= PACKAGE_WARNING;
if (contains(token, "natbib Warning:")) {
// Natbib warnings
if (contains(token, "Citation")
&& contains(token, "on page")
&& contains(token, "undefined")) {
retval |= UNDEF_CIT;
}
} else if (contains(token, "run BibTeX")) {
retval |= UNDEF_CIT;
} else if (contains(token, "Rerun LaTeX") ||
contains(token, "Rerun to get")) {
// at least longtable.sty and bibtopic.sty
// might use this.
lyxerr[Debug::LATEX]
<< "We should rerun." << endl;
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;
retval |= RERUN;
}
} else if (prefixIs(token, "! ")) {
// 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);
if (contains(token, "LaTeX Error:"))
retval |= LATEX_ERROR;
// get the next line
string tmp;
int count = 0;
do {
if (!getline(ifs, tmp))
break;
if (++count > 10)
break;
} while (!prefixIs(tmp, "l."));
if (prefixIs(tmp, "l.")) {
// we have a latex error
retval |= TEX_ERROR;
if (contains(desc, "Package babel Error: You haven't defined the language"))
retval |= ERROR_RERUN;
// get the line number:
int line = 0;
sscanf(tmp.c_str(), "l.%d", &line);
// get the rest of the message:
string errstr(tmp, tmp.find(' '));
errstr += '\n';
getline(ifs, tmp);
while (!contains(errstr, "l.")
&& !tmp.empty()
&& !prefixIs(tmp, "! ")
&& !contains(tmp, "(job aborted")) {
errstr += tmp;
errstr += "\n";
getline(ifs, tmp);
}
lyxerr[Debug::LATEX]
<< "line: " << line << '\n'
<< "Desc: " << desc << '\n'
<< "Text: " << errstr << endl;
if (line == last_line)
++line_count;
else {
line_count = 1;
last_line = line;
}
if (line_count <= 5) {
terr.insertError(line, desc, errstr);
++num_errors;
}
}
} else {
// information messages, TeX warnings and other
// warnings we have not caught earlier.
if (prefixIs(token, "Overfull ")) {
retval |= TEX_WARNING;
} else if (prefixIs(token, "Underfull ")) {
retval |= TEX_WARNING;
} else if (contains(token, "Rerun to get citations")) {
// Natbib seems to use this.
retval |= UNDEF_CIT;
} else if (contains(token, "No pages of output")) {
// A dvi file was not created
retval |= NO_OUTPUT;
} else if (contains(token, "That makes 100 errors")) {
// More than 100 errors were reprted
retval |= TOO_MANY_ERRORS;
}
}
}
lyxerr[Debug::LATEX] << "Log line: " << token << endl;
return retval;
}
namespace {
void handleFoundFile(string const & ff, DepTable & head)
{
// convert from native os path to unix path
string const foundfile = os::internal_path(trim(ff));
lyxerr[Debug::DEPEND] << "Found file: " << foundfile << endl;
// Ok now we found a file.
// Now we should make sure that this is a file that we can
// access through the normal paths.
// We will not try any fancy search methods to
// find the file.
// (1) foundfile is an
// absolute path and should
// be inserted.
if (AbsolutePath(foundfile)) {
lyxerr[Debug::DEPEND] << "AbsolutePath file: "
<< foundfile << endl;
// On initial insert we want to do the update at once
// since this file can not be a file generated by
// the latex run.
if (FileInfo(foundfile).exist())
head.insert(foundfile, true);
return;
}
string const onlyfile = OnlyFilename(foundfile);
// (2) foundfile is in the tmpdir
// insert it into head
if (FileInfo(onlyfile).exist()) {
static regex unwanted("^.*\\.(aux|log|dvi|bbl|ind|glo)$");
if (regex_match(onlyfile, unwanted)) {
lyxerr[Debug::DEPEND]
<< "We don't want "
<< onlyfile
<< " in the dep file"
<< endl;
} 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;
head.insert(onlyfile, true);
} else {
lyxerr[Debug::DEPEND]
<< "In tmpdir file:"
<< onlyfile
<< endl;
head.insert(onlyfile);
}
} else
lyxerr[Debug::DEPEND]
<< "Not a file or we are unable to find it."
<< endl;
}
} // anon namespace
void LaTeX::deplog(DepTable & head)
{
// This function reads the LaTeX log file end extracts all the external
// files used by the LaTeX run. The files are then entered into the
// dependency file.
string const logfile = OnlyFilename(ChangeExtension(file, ".log"));
static regex reg1(".*\\([^)]+.*");
static regex reg2("File: ([^ ]+).*");
static regex reg3("No file ([^ ]+)\\..*");
static regex reg4("\\\\openout[0-9]+.*=.*`([^ ]+)'\\..*");
// If an index should be created, MikTex does not write a line like
// \openout# = 'sample,idx'.
// but intstead only a line like this into the log:
// Writing index file sample.idx
static regex reg5("Writing index file ([^ ]+).*");
ifstream ifs(logfile.c_str());
while (ifs) {
// Ok, the scanning of files here is not sufficient.
// Sometimes files are named by "File: xxx" only
// So I think we should use some regexps to find files instead.
// "(\([^ ]+\)" should match the "(file " variant, note
// that we can have several of these on one line.
// "File: \([^ ]+\)" should match the "File: file" variant
string token;
getline(ifs, token);
token = rtrim(token, "\r");
if (token.empty())
continue;
smatch sub;
if (regex_match(token, sub, reg1)) {
static regex reg1_1("\\(([^()]+)");
smatch what;
string::const_iterator first = token.begin();
string::const_iterator end = token.end();
while (regex_search(first, end, what, reg1_1)) {
first = what[0].second;
handleFoundFile(what.str(1), head);
}
} else if (regex_match(token, sub, reg2)) {
handleFoundFile(sub.str(1), head);
} else if (regex_match(token, sub, reg3)) {
handleFoundFile(sub.str(1), head);
} else if (regex_match(token, sub, reg4)) {
handleFoundFile(sub.str(1), head);
} else if (regex_match(token, sub, reg5)) {
handleFoundFile(sub.str(1), head);
}
}
// Make sure that the main .tex file is in the dependancy file.
head.insert(OnlyFilename(file), true);
}