lyx_mirror/src/insets/ExternalSupport.cpp
Uwe Stöhr b33182bc3d filetools.cpp: introduce a new method to be able to distinguish between valid LaTeX filenames and filenames causing troubles on some DVI viewers.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@35514 a592a061-630c-0410-9148-cb99ea01b6c8
2010-09-27 02:39:22 +00:00

543 lines
16 KiB
C++

/**
* \file ExternalSupport.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Asger Alstrup Nielsen
* \author Angus Leeming
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "ExternalSupport.h"
#include "ExternalTemplate.h"
#include "ExternalTransforms.h"
#include "InsetExternal.h"
#include "Buffer.h"
#include "Converter.h"
#include "ErrorList.h"
#include "Exporter.h"
#include "Format.h"
#include "Mover.h"
#include "frontends/alert.h"
#include "support/debug.h"
#include "support/filetools.h"
#include "support/gettext.h"
#include "support/lstrings.h"
#include "support/lyxalgo.h"
#include "support/os.h"
#include "support/Package.h"
#include <algorithm>
using namespace std;
using namespace lyx::support;
namespace lyx {
namespace external {
Template const * getTemplatePtr(InsetExternalParams const & params)
{
TemplateManager const & etm = TemplateManager::get();
return etm.getTemplateByName(params.templatename());
}
void editExternal(InsetExternalParams const & params, Buffer const & buffer)
{
formats.edit(buffer, params.filename,
formats.getFormatFromFile(params.filename));
}
namespace {
string const subst_path(string const & input,
string const & placeholder,
string const & path,
bool use_latex_path,
latex_path_extension ext = PROTECT_EXTENSION,
latex_path_dots dots = LEAVE_DOTS)
{
if (input.find(placeholder) == string::npos)
return input;
// Don't use external_path here when use_latex_path is false, as the
// path will be compared with another one in internal style later
// in Converters::move.
string const path2 = use_latex_path ?
latex_path(path, ext, dots) : path;
return subst(input, placeholder, path2);
}
} // namespace anon
string const doSubstitution(InsetExternalParams const & params,
Buffer const & buffer, string const & s,
bool use_latex_path,
bool external_in_tmpdir,
Substitute what)
{
Buffer const * masterBuffer = buffer.masterBuffer();
string const parentpath = external_in_tmpdir ?
masterBuffer->temppath() :
buffer.filePath();
string const filename = external_in_tmpdir ?
params.filename.mangledFileName() :
params.filename.outputFileName(parentpath);
string const basename = changeExtension(
onlyFileName(filename), string());
string const absname = makeAbsPath(filename, parentpath).absFileName();
string result = s;
if (what != ALL_BUT_PATHS) {
string const filepath = onlyPath(filename);
string const abspath = onlyPath(absname);
string const masterpath = external_in_tmpdir ?
masterBuffer->temppath() :
masterBuffer->filePath();
// FIXME UNICODE
string relToMasterPath = onlyPath(
to_utf8(makeRelPath(from_utf8(absname),
from_utf8(masterpath))));
if (relToMasterPath == "./")
relToMasterPath.clear();
// FIXME UNICODE
string relToParentPath = onlyPath(
to_utf8(makeRelPath(from_utf8(absname),
from_utf8(parentpath))));
if (relToParentPath == "./")
relToParentPath.clear();
result = subst_path(result, "$$FPath", filepath,
use_latex_path,
PROTECT_EXTENSION,
ESCAPE_DOTS);
result = subst_path(result, "$$AbsPath", abspath,
use_latex_path,
PROTECT_EXTENSION,
ESCAPE_DOTS);
result = subst_path(result, "$$RelPathMaster",
relToMasterPath, use_latex_path,
PROTECT_EXTENSION,
ESCAPE_DOTS);
result = subst_path(result, "$$RelPathParent",
relToParentPath, use_latex_path,
PROTECT_EXTENSION,
ESCAPE_DOTS);
if (FileName::isAbsolute(filename)) {
result = subst_path(result, "$$AbsOrRelPathMaster",
abspath, use_latex_path,
PROTECT_EXTENSION,
ESCAPE_DOTS);
result = subst_path(result, "$$AbsOrRelPathParent",
abspath, use_latex_path,
PROTECT_EXTENSION,
ESCAPE_DOTS);
} else {
result = subst_path(result, "$$AbsOrRelPathMaster",
relToMasterPath, use_latex_path,
PROTECT_EXTENSION,
ESCAPE_DOTS);
result = subst_path(result, "$$AbsOrRelPathParent",
relToParentPath, use_latex_path,
PROTECT_EXTENSION,
ESCAPE_DOTS);
}
}
if (what == PATHS)
return result;
result = subst_path(result, "$$FName", filename, use_latex_path,
EXCLUDE_EXTENSION);
result = subst_path(result, "$$Basename", basename, use_latex_path,
PROTECT_EXTENSION, ESCAPE_DOTS);
result = subst_path(result, "$$Extension",
'.' + getExtension(filename), use_latex_path);
result = subst_path(result, "$$Tempname", params.tempname().absFileName(), use_latex_path);
result = subst_path(result, "$$Sysdir",
package().system_support().absFileName(), use_latex_path);
// Handle the $$Contents(filename) syntax
if (contains(result, "$$Contents(\"")) {
// Since use_latex_path may be true we must extract the file
// name from s instead of result and do the substitutions
// again, this time with use_latex_path false.
size_t const spos = s.find("$$Contents(\"");
size_t const send = s.find("\")", spos);
string const file_template = s.substr(spos + 12, send - (spos + 12));
string const file = doSubstitution(params, buffer,
file_template, false,
external_in_tmpdir, what);
string contents;
FileName const absfile(
makeAbsPath(file, masterBuffer->temppath()));
if (absfile.isReadableFile())
// FIXME UNICODE
contents = to_utf8(absfile.fileContents("UTF-8"));
size_t const pos = result.find("$$Contents(\"");
size_t const end = result.find("\")", pos);
result.replace(pos, end + 2, contents);
}
return result;
}
namespace {
/** update the file represented by the template.
If \p external_in_tmpdir == true, then the generated file is
placed in the buffer's temporary directory.
*/
void updateExternal(InsetExternalParams const & params,
string const & format,
Buffer const & buffer,
ExportData & exportdata,
bool external_in_tmpdir,
bool dryrun)
{
Template const * const et_ptr = getTemplatePtr(params);
if (!et_ptr)
return; // FAILURE
Template const & et = *et_ptr;
if (!et.automaticProduction)
return; // NOT_NEEDED
Template::Formats::const_iterator cit = et.formats.find(format);
if (cit == et.formats.end())
return; // FAILURE
Template::Format const & outputFormat = cit->second;
if (outputFormat.updateResult.empty())
return; // NOT_NEEDED
string from_format = et.inputFormat;
if (from_format.empty())
return; // NOT_NEEDED
if (from_format == "*") {
if (params.filename.empty())
return; // NOT_NEEDED
// Try and ascertain the file format from its contents.
from_format = formats.getFormatFromFile(params.filename);
if (from_format.empty())
return; // FAILURE
}
string const to_format = outputFormat.updateFormat;
if (to_format.empty())
return; // NOT_NEEDED
// The master buffer. This is useful when there are multiple levels
// of include files
Buffer const * masterBuffer = buffer.masterBuffer();
// We copy the source file to the temp dir and do the conversion
// there if necessary
FileName const temp_file(
makeAbsPath(params.filename.mangledFileName(),
masterBuffer->temppath()));
if (!params.filename.empty() && !params.filename.isDirectory()) {
unsigned long const from_checksum = params.filename.checksum();
unsigned long const temp_checksum = temp_file.checksum();
if (from_checksum != temp_checksum) {
Mover const & mover = getMover(from_format);
if (!mover.copy(params.filename, temp_file)) {
LYXERR(Debug::EXTERNAL, "external::updateExternal. "
<< "Unable to copy " << params.filename << " to " << temp_file);
return; // FAILURE
}
}
}
// the generated file (always in the temp dir)
string const to_file = doSubstitution(params, buffer,
outputFormat.updateResult,
false, true);
FileName const abs_to_file(
makeAbsPath(to_file, masterBuffer->temppath()));
if (!dryrun) {
// Record the referenced files for the exporter.
// The exporter will copy them to the export dir.
typedef Template::Format::FileMap FileMap;
FileMap::const_iterator rit = outputFormat.referencedFiles.begin();
FileMap::const_iterator rend = outputFormat.referencedFiles.end();
for (; rit != rend; ++rit) {
vector<string>::const_iterator fit = rit->second.begin();
vector<string>::const_iterator fend = rit->second.end();
for (; fit != fend; ++fit) {
FileName const source(makeAbsPath(
doSubstitution(params, buffer, *fit,
false, true),
masterBuffer->temppath()));
// The path of the referenced file is never the
// temp path, but the filename may be the mangled
// or the real name. Therefore we substitute the
// paths and names separately.
string file = subst(*fit, "$$FName",
"$$FPath$$Basename$$Extension");
file = doSubstitution(params, buffer, file, false, false,
PATHS);
file = doSubstitution(params, buffer, file,
false, external_in_tmpdir,
ALL_BUT_PATHS);
// if file is a relative name, it is interpreted
// relative to the master document.
if (makeAbsPath(file, masterBuffer->filePath()) !=
params.filename.absFileName())
exportdata.addExternalFile(rit->first, source, file);
}
}
}
// Do we need to perform the conversion?
// Yes if to_file does not exist or if from_file is newer than to_file
if (compare_timestamps(temp_file, abs_to_file) < 0)
return; // SUCCESS
// FIXME (Abdel 12/08/06): Is there a need to show these errors?
ErrorList el;
bool const success =
theConverters().convert(&buffer, temp_file, abs_to_file,
params.filename, from_format, to_format, el,
Converters::try_default | Converters::try_cache);
if (!success) {
LYXERR(Debug::EXTERNAL, "external::updateExternal. "
<< "Unable to convert from " << from_format << " to " << to_format);
}
// return success
}
string const substituteCommands(InsetExternalParams const & params,
string const & input, string const & format);
string const substituteOptions(InsetExternalParams const & params,
string const & input, string const & format);
} // namespace anon
int writeExternal(InsetExternalParams const & params,
string const & format,
Buffer const & buffer, odocstream & os,
ExportData & exportdata,
bool external_in_tmpdir,
bool dryrun)
{
Template const * const et_ptr = getTemplatePtr(params);
if (!et_ptr)
return 0;
Template const & et = *et_ptr;
Template::Formats::const_iterator cit = et.formats.find(format);
if (cit == et.formats.end()) {
LYXERR(Debug::EXTERNAL, "External template format '" << format
<< "' not specified in template " << params.templatename());
return 0;
}
if (!dryrun || contains(cit->second.product, "$$Contents"))
updateExternal(params, format, buffer, exportdata,
external_in_tmpdir, dryrun);
bool const use_latex_path = format == "LaTeX";
string str = doSubstitution(params, buffer, cit->second.product,
use_latex_path, external_in_tmpdir);
string const absname = makeAbsPath(
params.filename.outputFileName(buffer.filePath()), buffer.filePath()).absFileName();
if (!dryrun && !external_in_tmpdir) {
if (!isValidLaTeXFileName(absname)) {
lyx::frontend::Alert::warning(_("Invalid filename"),
_("The following filename will cause troubles "
"when running the exported file through LaTeX: ") +
from_utf8(absname));
}
if (!isValidDVIFileName(absname)) {
lyx::frontend::Alert::warning(_("Problematic filename for DVI"),
_("The following filename can cause troubles "
"when running the exported file through LaTeX "
"and opening the resulting DVI: ") +
from_utf8(absname), true);
}
}
str = substituteCommands(params, str, format);
str = substituteOptions(params, str, format);
// FIXME UNICODE
os << from_utf8(str);
return int(count(str.begin(), str.end(),'\n'));
}
namespace {
// Empty template, specialised below.
template <typename TransformType>
string const substituteIt(string const &,
TransformID,
string const &,
Template::Format const &,
InsetExternalParams const &);
template <>
string const substituteIt<TransformCommand>(string const & input,
TransformID id,
string const & /* formatname */,
Template::Format const & format,
InsetExternalParams const & params)
{
typedef map<TransformID, TransformStore> Transformers;
Transformers::const_iterator it = format.command_transformers.find(id);
if (it == format.command_transformers.end())
return input;
TransformStore const & store = it->second;
TransformCommand::ptr_type ptr;
if (id == Rotate)
ptr = store.getCommandTransformer(params.rotationdata);
else if (id == Resize)
ptr = store.getCommandTransformer(params.resizedata);
if (!ptr.get())
return input;
string result =
subst(input, ptr->front_placeholder(), ptr->front());
return subst(result, ptr->back_placeholder(), ptr->back());
}
template <>
string const substituteIt<TransformOption>(string const & input,
TransformID id,
string const & fname,
Template::Format const & format,
InsetExternalParams const & params)
{
typedef map<TransformID, TransformStore> Transformers;
Transformers::const_iterator it = format.option_transformers.find(id);
if (it == format.option_transformers.end())
return input;
TransformStore const & store = it->second;
TransformOption::ptr_type ptr;
switch (id) {
case Clip:
ptr = store.getOptionTransformer(params.clipdata);
break;
case Extra:
ptr = store.getOptionTransformer(params.extradata.get(fname));
break;
case Rotate:
ptr = store.getOptionTransformer(params.rotationdata);
break;
case Resize:
ptr = store.getOptionTransformer(params.resizedata);
break;
}
if (!ptr.get())
return input;
return subst(input, ptr->placeholder(), ptr->option());
}
template <typename TransformerType>
string const transformIt(InsetExternalParams const & params,
string const & s, string const & formatname)
{
Template const * const et = getTemplatePtr(params);
if (!et || et->transformIds.empty())
return s;
Template::Formats::const_iterator fit = et->formats.find(formatname);
if (fit == et->formats.end())
return s;
string result = s;
Template::Format const & format = fit->second;
typedef vector<TransformID> TransformsIDs;
TransformsIDs::const_iterator it = et->transformIds.begin();
TransformsIDs::const_iterator end = et->transformIds.end();
for (; it != end; ++it) {
result = substituteIt<TransformerType>(result, *it, formatname,
format, params);
}
return result;
}
string const substituteCommands(InsetExternalParams const & params,
string const & input, string const & format)
{
return transformIt<TransformCommand>(params, input, format);
}
string const substituteOption(InsetExternalParams const & params,
string const & input, string const & format)
{
string opt = transformIt<TransformOption>(params, input, format);
if (format == "LaTeX" || format == "PDFLaTeX")
return sanitizeLatexOption(opt);
if (format == "DocBook")
return sanitizeDocBookOption(opt);
return opt;
}
string const substituteOptions(InsetExternalParams const & params,
string const & input, string const & format)
{
string output = input;
Template const * const et = getTemplatePtr(params);
if (!et || et->transformIds.empty())
return output;
Template::Formats::const_iterator fit = et->formats.find(format);
if (fit == et->formats.end() || fit->second.options.empty())
return output;
typedef vector<Template::Option> Options;
Options const & options = fit->second.options;
Options::const_iterator it = options.begin();
Options::const_iterator end = options.end();
for (; it != end; ++it) {
string const opt = substituteOption(params, it->option, format);
string const placeholder = "$$" + it->name;
output = subst(output, placeholder, opt);
}
return output;
}
} // namespace anon
} // namespace external
} // namespace lyx