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50b99f810f
Allows external edit of non-existent files.
861 lines
22 KiB
C++
861 lines
22 KiB
C++
/**
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* \file Format.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Dekel Tsur
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "Format.h"
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#include "Buffer.h"
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#include "BufferParams.h"
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#include "LyXRC.h"
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#include "OutputParams.h"
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#include "ServerSocket.h"
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#include "frontends/alert.h" //to be removed?
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#include "support/debug.h"
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#include "support/docstream.h"
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#include "support/filetools.h"
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#include "support/gettext.h"
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#include "support/lstrings.h"
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#include "support/lyxmagic.h"
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#include "support/mutex.h"
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#include "support/os.h"
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#include "support/PathChanger.h"
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#include "support/Systemcall.h"
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#include "support/textutils.h"
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#include "support/Translator.h"
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#include <algorithm>
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#include <functional>
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#include <map>
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#include <ctime>
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// FIXME: Q_OS_MAC is not available, it's in Qt
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#ifdef USE_MACOSX_PACKAGING
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#include "support/linkback/LinkBackProxy.h"
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#endif
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using namespace std;
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using namespace lyx::support;
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namespace lyx {
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namespace Alert = frontend::Alert;
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namespace os = support::os;
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namespace {
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string const token_from_format("$$i");
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string const token_path_format("$$p");
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string const token_socket_format("$$a");
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} // namespace
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bool Format::formatSorter(Format const * lhs, Format const * rhs)
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{
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return compare_locale(translateIfPossible(lhs->prettyname()),
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translateIfPossible(rhs->prettyname())) < 0;
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}
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bool operator<(Format const & a, Format const & b)
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{
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return compare_locale(translateIfPossible(a.prettyname()),
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translateIfPossible(b.prettyname())) < 0;
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}
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Format::Format(string const & n, string const & e, docstring const & p,
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string const & s, string const & v, string const & ed,
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string const & m, int flags)
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: name_(n), prettyname_(p), shortcut_(s), viewer_(v),
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editor_(ed), mime_(m), flags_(flags)
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{
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extension_list_ = getVectorFromString(e, ",");
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LYXERR(Debug::GRAPHICS, "New Format: n=" << n << ", flags=" << flags);
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}
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bool Format::dummy() const
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{
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return extension().empty();
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}
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string const Format::extensions() const
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{
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return getStringFromVector(extension_list_, ", ");
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}
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bool Format::hasExtension(string const & ext) const
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{
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return (find(extension_list_.begin(), extension_list_.end(), ext)
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!= extension_list_.end());
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}
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bool Format::isChildFormat() const
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{
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if (name_.empty())
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return false;
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return isDigitASCII(name_[name_.length() - 1]);
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}
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string const Format::parentFormat() const
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{
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return name_.substr(0, name_.length() - 1);
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}
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void Format::setExtensions(string const & e)
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{
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extension_list_ = getVectorFromString(e, ",");
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}
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namespace {
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std::function<bool (Format const &)> FormatNameIs(string const & name)
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{
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return [name](Format const & f){ return f.name() == name; };
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}
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}
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// This method should return a reference, and throw an exception
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// if the format named name cannot be found (Lgb)
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Format const * Formats::getFormat(string const & name) const
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{
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FormatList::const_iterator cit =
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find_if(formatlist_.begin(), formatlist_.end(),
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FormatNameIs(name));
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if (cit != formatlist_.end())
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return &(*cit);
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else
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return nullptr;
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}
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Format * Formats::getFormat(string const & name)
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{
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FormatList::iterator it =
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find_if(formatlist_.begin(), formatlist_.end(),
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FormatNameIs(name));
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if (it != formatlist_.end())
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return &(*it);
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return nullptr;
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}
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namespace {
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/** Guess the file format name (as in Format::name()) from contents.
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* Normally you don't want to use this directly, but rather
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* Formats::getFormatFromFile().
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*/
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string guessFormatFromContents(FileName const & fn)
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{
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// the different filetypes and what they contain in one of the first lines
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// (dots are any characters). (Herbert 20020131)
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// AGR Grace...
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// BMP BM...
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// EPS %!PS-Adobe-3.0 EPSF...
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// FIG #FIG...
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// FITS ...BITPIX...
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// GIF GIF...
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// JPG \377\330... (0xFFD8)
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// PDF %PDF-...
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// PNG .PNG...
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// PBM P1... or P4 (B/W)
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// PGM P2... or P5 (Grayscale)
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// PPM P3... or P6 (color)
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// PS %!PS-Adobe-2.0 or 1.0, no "EPSF"!
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// SGI \001\332... (decimal 474)
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// TGIF %TGIF...
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// TIFF II... or MM...
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// XBM ..._bits[]...
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// XPM /* XPM */ sometimes missing (f.ex. tgif-export)
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// ...static char *...
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// XWD \000\000\000\151 (0x00006900) decimal 105
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//
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// GZIP \037\213 http://www.ietf.org/rfc/rfc1952.txt
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// ZIP PK... http://www.halyava.ru/document/ind_arch.htm
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// Z \037\235 UNIX compress
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// paranoia check
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if (fn.empty() || !fn.isReadableFile())
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return string();
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ifstream ifs(fn.toFilesystemEncoding().c_str());
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if (!ifs)
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// Couldn't open file...
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return string();
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// gnuzip
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static string const gzipStamp = "\037\213";
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// PKZIP
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static string const zipStamp = "PK";
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// ZIP containers (koffice, openoffice.org etc).
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static string const nonzipStamp = "\010\0\0\0mimetypeapplication/";
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// compress
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static string const compressStamp = "\037\235";
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// DOS binary EPS according to Adobe TN-5002
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static string const binEPSStamp = "\xC5\xD0\xD3\xC6";
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// Maximum strings to read
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int const max_count = 50;
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int count = 0;
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string str;
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string format;
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bool firstLine = true;
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bool backslash = false;
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bool maybelatex = false;
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int dollars = 0;
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while ((count++ < max_count) && format.empty() && !maybelatex) {
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if (ifs.eof())
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break;
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getline(ifs, str);
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string const stamp = str.substr(0, 2);
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if (firstLine && str.size() >= 2) {
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// at first we check for a zipped file, because this
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// information is saved in the first bytes of the file!
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// also some graphic formats which save the information
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// in the first line, too.
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if (prefixIs(str, gzipStamp)) {
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format = "gzip";
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} else if (stamp == zipStamp &&
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!contains(str, nonzipStamp)) {
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format = "zip";
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} else if (stamp == compressStamp) {
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format = "compress";
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// the graphics part
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} else if (stamp == "BM") {
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format = "bmp";
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} else if (stamp == "\377\330") {
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format = "jpg";
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} else if (prefixIs(str, "\x89PNG")) {
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format = "png";
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} else if (stamp == "\001\332") {
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format = "sgi";
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} else if (prefixIs(str, binEPSStamp)) {
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format = "eps";
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// PBM family
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// Don't need to use str.at(0), str.at(1) because
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// we already know that str.size() >= 2
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} else if (str[0] == 'P') {
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switch (str[1]) {
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case '1':
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case '4':
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format = "pbm";
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break;
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case '2':
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case '5':
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format = "pgm";
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break;
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case '3':
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case '6':
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format = "ppm";
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}
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break;
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} else if ((stamp == "II") || (stamp == "MM")) {
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format = "tiff";
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} else if (prefixIs(str,"%TGIF")) {
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format = "tgif";
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} else if (prefixIs(str,"#FIG")) {
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format = "fig";
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} else if (prefixIs(str,"GIF")) {
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format = "gif";
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} else if (str.size() > 3) {
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int const c = ((str[0] << 24) & (str[1] << 16) &
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(str[2] << 8) & str[3]);
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if (c == 105) {
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format = "xwd";
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}
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}
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firstLine = false;
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}
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if (!format.empty())
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break;
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else if (contains(str,"EPSF"))
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// dummy, if we have wrong file description like
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// %!PS-Adobe-2.0EPSF"
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format = "eps";
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else if (contains(str, "Grace"))
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format = "agr";
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else if (contains(str, "%PDF"))
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// autodetect pdf format for graphics inclusion
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format = "pdf6";
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else if (contains(str, " EMF"))
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format = "emf";
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else if (contains(str, "%!PS-Adobe")) {
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// eps or ps
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ifs >> str;
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if (contains(str,"EPSF"))
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format = "eps";
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else
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format = "ps";
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}
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else if (contains(str, "_bits[]"))
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format = "xbm";
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else if (contains(str, "XPM") || contains(str, "static char *"))
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format = "xpm";
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else if (contains(str, "BITPIX"))
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format = "fits";
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else if (contains(str, "\\documentclass") ||
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contains(str, "\\chapter") ||
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contains(str, "\\section") ||
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contains(str, "\\begin") ||
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contains(str, "\\end") ||
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contains(str, "$$") ||
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contains(str, "\\[") ||
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contains(str, "\\]"))
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maybelatex = true;
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else {
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if (contains(str, '\\'))
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backslash = true;
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dollars += count_char(str, '$');
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if (backslash && dollars > 1)
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// inline equation
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maybelatex = true;
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}
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}
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if (format.empty() && maybelatex && !isBinaryFile(fn))
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format = "latex";
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if (format.empty()) {
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if (ifs.eof())
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LYXERR(Debug::GRAPHICS, "filetools(getFormatFromContents)\n"
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"\tFile type not recognised before EOF!");
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} else {
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LYXERR(Debug::GRAPHICS, "Recognised Fileformat: " << format);
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return format;
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}
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LYXERR(Debug::GRAPHICS, "filetools(getFormatFromContents)\n"
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<< "\tCouldn't find a known format!");
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return string();
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}
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} // namespace
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string Formats::getFormatFromFile(FileName const & filename) const
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{
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if (filename.empty())
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return string();
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string psformat;
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string format;
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if (filename.exists()) {
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// one instance of Magic that will be reused for next calls
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// This avoids to read the magic file everytime
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// If libmagic is not available, Magic::file returns an empty string.
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static Magic magic;
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string const result = magic.file(filename.toFilesystemEncoding());
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string const mime = token(result, ';', 0);
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// our own detection is better for binary files (can be anything)
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// and different plain text formats
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if (!mime.empty() && mime != "application/octet-stream" &&
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mime != "text/plain") {
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Formats::const_iterator cit =
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find_if(formatlist_.begin(), formatlist_.end(),
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[mime](Format const & f){ return f.mime() == mime; });
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if (cit != formatlist_.end()) {
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LYXERR(Debug::GRAPHICS, "\tgot format from MIME type: "
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<< mime << " -> " << cit->name());
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// See special eps/ps handling below
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if (mime == "application/postscript")
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psformat = cit->name();
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else
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format = cit->name();
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}
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}
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// libmagic recognizes as latex also some formats of ours
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// such as pstex and pdftex. Therefore we have to perform
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// additional checks in this case (bug 9244).
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if (!format.empty() && format != "latex")
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return format;
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}
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string const ext = getExtension(filename.absFileName());
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if (format.empty()) {
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// libmagic does not distinguish eps and ps.
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// Therefore we need to use our own detection here, but only if it
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// recognizes either ps or eps. Otherwise the libmagic guess will
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// be better (bug 9146).
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format = guessFormatFromContents(filename);
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if (!psformat.empty()) {
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if (isPostScriptFileFormat(format))
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return format;
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else
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return psformat;
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}
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if (isZippedFileFormat(format) && !ext.empty()) {
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string const & fmt_name = getFormatFromExtension(ext);
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if (!fmt_name.empty()) {
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Format const * p_format = getFormat(fmt_name);
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if (p_format && p_format->zippedNative())
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return p_format->name();
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}
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}
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// Don't simply return latex (bug 9244).
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if (!format.empty() && format != "latex")
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return format;
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}
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// Both libmagic and our guessing from contents may return as latex
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// also lyx files and our pstex and pdftex formats. In this case we
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// give precedence to the format determined by the extension.
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if (format == "latex") {
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format = getFormatFromExtension(ext);
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return format.empty() ? "latex" : format;
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}
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// try to find a format from the file extension.
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return getFormatFromExtension(ext);
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}
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string Formats::getFormatFromExtension(string const & ext) const
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{
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if (!ext.empty()) {
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// this is ambigous if two formats have the same extension,
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// but better than nothing
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Formats::const_iterator cit =
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find_if(formatlist_.begin(), formatlist_.end(),
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[ext](Format const & f){ return f.hasExtension(ext); });
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if (cit != formatlist_.end()) {
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LYXERR(Debug::GRAPHICS, "\twill guess format from file extension: "
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<< ext << " -> " << cit->name());
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return cit->name();
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}
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}
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return string();
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}
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/// Used to store last timestamp of file and whether it is (was) zipped
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struct ZippedInfo {
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bool zipped;
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std::time_t timestamp;
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ZippedInfo(bool zipped, std::time_t timestamp)
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: zipped(zipped), timestamp(timestamp) { }
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};
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/// Mapping absolute pathnames of files to their ZippedInfo metadata.
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static std::map<std::string, ZippedInfo> zipped_;
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static Mutex zipped_mutex;
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bool Formats::isZippedFile(support::FileName const & filename) const {
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string const & fname = filename.absFileName();
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time_t timestamp = filename.lastModified();
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Mutex::Locker lock(&zipped_mutex);
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map<string, ZippedInfo>::iterator it = zipped_.find(fname);
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if (it != zipped_.end() && it->second.timestamp == timestamp)
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return it->second.zipped;
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// FIXME perf: This very expensive function is called on startup on each
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// file whic is going to be parsed, and also on svgz icons. Maybe there is a
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// quicker way to check whether a file is zipped? I.e. for icons we
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// probably just need to check the extension (svgz vs svg).
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string const & format = getFormatFromFile(filename);
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bool zipped = (format == "gzip" || format == "zip");
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zipped_.insert(make_pair(fname, ZippedInfo(zipped, timestamp)));
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return zipped;
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}
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bool Formats::isZippedFileFormat(string const & format)
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{
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return contains("gzip zip compress", format) && !format.empty();
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}
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bool Formats::isPostScriptFileFormat(string const & format)
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{
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return format == "ps" || format == "eps";
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}
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static string fixCommand(string const & cmd, string const & ext,
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os::auto_open_mode mode)
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{
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// configure.py says we do not want a viewer/editor
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if (cmd.empty())
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return cmd;
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// Does the OS manage this format?
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if (os::canAutoOpenFile(ext, mode))
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return "auto";
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// if configure.py found nothing, clear the command
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if (token(cmd, ' ', 0) == "auto")
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return string();
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// use the command found by configure.py
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return cmd;
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}
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void Formats::setAutoOpen()
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{
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FormatList::iterator fit = formatlist_.begin();
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FormatList::iterator const fend = formatlist_.end();
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for ( ; fit != fend ; ++fit) {
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fit->setViewer(fixCommand(fit->viewer(), fit->extension(), os::VIEW));
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fit->setEditor(fixCommand(fit->editor(), fit->extension(), os::EDIT));
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}
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}
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int Formats::getNumber(string const & name) const
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{
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FormatList::const_iterator cit =
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|
find_if(formatlist_.begin(), formatlist_.end(),
|
|
FormatNameIs(name));
|
|
if (cit == formatlist_.end())
|
|
return -1;
|
|
|
|
return distance(formatlist_.begin(), cit);
|
|
}
|
|
|
|
|
|
void Formats::add(string const & name)
|
|
{
|
|
if (!getFormat(name))
|
|
add(name, name, from_utf8(name), string(), string(), string(),
|
|
string(), Format::document);
|
|
}
|
|
|
|
|
|
void Formats::add(string const & name, string const & extensions,
|
|
docstring const & prettyname, string const & shortcut,
|
|
string const & viewer, string const & editor,
|
|
string const & mime, int flags)
|
|
{
|
|
Format * format = getFormat(name);
|
|
if (format)
|
|
*format = Format(name, extensions, prettyname, shortcut, viewer,
|
|
editor, mime, flags);
|
|
else
|
|
formatlist_.push_back(Format(name, extensions, prettyname,
|
|
shortcut, viewer, editor, mime, flags));
|
|
}
|
|
|
|
|
|
void Formats::erase(string const & name)
|
|
{
|
|
FormatList::iterator it =
|
|
find_if(formatlist_.begin(), formatlist_.end(),
|
|
FormatNameIs(name));
|
|
if (it != formatlist_.end())
|
|
formatlist_.erase(it);
|
|
}
|
|
|
|
|
|
void Formats::sort()
|
|
{
|
|
std::sort(formatlist_.begin(), formatlist_.end());
|
|
}
|
|
|
|
|
|
void Formats::setViewer(string const & name, string const & command)
|
|
{
|
|
add(name);
|
|
Format * format = getFormat(name);
|
|
if (format)
|
|
format->setViewer(command);
|
|
else
|
|
LYXERR0("Unable to set viewer for non-existent format: " << name);
|
|
}
|
|
|
|
|
|
void Formats::setEditor(string const & name, string const & command)
|
|
{
|
|
add(name);
|
|
Format * format = getFormat(name);
|
|
if (format)
|
|
format->setEditor(command);
|
|
else
|
|
LYXERR0("Unable to set editor for non-existent format: " << name);
|
|
}
|
|
|
|
|
|
bool Formats::view(Buffer const & buffer, FileName const & filename,
|
|
string const & format_name) const
|
|
{
|
|
if (filename.empty() || !filename.exists()) {
|
|
Alert::error(_("Cannot view file"),
|
|
bformat(_("File does not exist: %1$s"),
|
|
from_utf8(filename.absFileName())));
|
|
return false;
|
|
}
|
|
|
|
Format const * format = getFormat(format_name);
|
|
if (format && format->viewer().empty() &&
|
|
format->isChildFormat())
|
|
format = getFormat(format->parentFormat());
|
|
if (!format || format->viewer().empty()) {
|
|
// FIXME: I believe this is the wrong place to show alerts, it should be done
|
|
// by the caller (this should be "utility" code)
|
|
Alert::error(_("Cannot view file"),
|
|
bformat(_("No information for viewing %1$s"),
|
|
translateIfPossible(prettyName(format_name))));
|
|
return false;
|
|
}
|
|
// viewer is 'auto'
|
|
if (format->viewer() == "auto") {
|
|
if (os::autoOpenFile(filename.absFileName(), os::VIEW, buffer.filePath()))
|
|
return true;
|
|
else {
|
|
Alert::error(_("Cannot view file"),
|
|
bformat(_("Auto-view file %1$s failed"),
|
|
from_utf8(filename.absFileName())));
|
|
return false;
|
|
}
|
|
}
|
|
|
|
string command = format->viewer();
|
|
|
|
// Escape backslashes if not already in double or single quotes.
|
|
// We cannot simply quote the whole command as there may be arguments.
|
|
if (contains(command, '\\')) {
|
|
bool inquote1 = false;
|
|
bool inquote2 = false;
|
|
string::iterator cit = command.begin();
|
|
for (; cit != command.end(); ++cit) {
|
|
switch (*cit) {
|
|
case '"':
|
|
inquote1 = !inquote1;
|
|
break;
|
|
case '\'':
|
|
inquote2 = !inquote2;
|
|
break;
|
|
case '\\':
|
|
if (!inquote1 && !inquote2)
|
|
cit = ++command.insert(cit, '\\');
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (format_name == "dvi" &&
|
|
!lyxrc.view_dvi_paper_option.empty()) {
|
|
string paper_size = buffer.params().paperSizeName(BufferParams::XDVI);
|
|
if (!paper_size.empty()) {
|
|
command += ' ' + lyxrc.view_dvi_paper_option;
|
|
command += ' ' + paper_size;
|
|
if (buffer.params().orientation == ORIENTATION_LANDSCAPE &&
|
|
buffer.params().papersize != PAPER_CUSTOM)
|
|
command += 'r';
|
|
}
|
|
}
|
|
|
|
if (!contains(command, token_from_format))
|
|
command += ' ' + token_from_format;
|
|
|
|
command = subst(command, token_from_format,
|
|
quoteName(onlyFileName(filename.toFilesystemEncoding()), quote_shell_filename));
|
|
command = subst(command, token_path_format,
|
|
quoteName(onlyPath(filename.toFilesystemEncoding()), quote_shell_filename));
|
|
command = subst(command, token_socket_format, quoteName(theServerSocket().address()));
|
|
LYXERR(Debug::FILES, "Executing command: " << command);
|
|
// FIXME UNICODE utf8 can be wrong for files
|
|
buffer.message(_("Executing command: ") + from_utf8(command));
|
|
|
|
PathChanger p(filename.onlyPath());
|
|
Systemcall one;
|
|
one.startscript(Systemcall::DontWait, command,
|
|
buffer.filePath(), buffer.layoutPos());
|
|
|
|
// we can't report any sort of error, since we aren't waiting
|
|
return true;
|
|
}
|
|
|
|
|
|
bool Formats::edit(Buffer const & buffer, FileName const & filename,
|
|
string const & format_name) const
|
|
{
|
|
if (filename.empty()) {
|
|
Alert::error(_("No Filename"),
|
|
_("No filename was provided!"));
|
|
return false;
|
|
}
|
|
|
|
// LinkBack files look like PDF, but have the .linkback extension
|
|
string const ext = getExtension(filename.absFileName());
|
|
if (format_name == "pdf6" && ext == "linkback") {
|
|
#ifdef USE_MACOSX_PACKAGING
|
|
return editLinkBackFile(filename.absFileName().c_str());
|
|
#else
|
|
Alert::error(_("Cannot edit file"),
|
|
_("LinkBack files can only be edited on Apple Mac OSX."));
|
|
return false;
|
|
#endif // USE_MACOSX_PACKAGING
|
|
}
|
|
|
|
Format const * format = getFormat(format_name);
|
|
if (format && format->editor().empty() &&
|
|
format->isChildFormat())
|
|
format = getFormat(format->parentFormat());
|
|
if (!format || format->editor().empty()) {
|
|
// FIXME: I believe this is the wrong place to show alerts, it should
|
|
// be done by the caller (this should be "utility" code)
|
|
Alert::error(_("Cannot edit file"),
|
|
bformat(_("No information for editing %1$s"),
|
|
translateIfPossible(prettyName(format_name))));
|
|
return false;
|
|
}
|
|
|
|
// editor is 'auto'
|
|
if (format->editor() == "auto") {
|
|
if (os::autoOpenFile(filename.absFileName(), os::EDIT, buffer.filePath()))
|
|
return true;
|
|
else {
|
|
Alert::error(_("Cannot edit file"),
|
|
bformat(_("Auto-edit file %1$s failed"),
|
|
from_utf8(filename.absFileName())));
|
|
return false;
|
|
}
|
|
}
|
|
|
|
string command = format->editor();
|
|
|
|
if (!contains(command, token_from_format))
|
|
command += ' ' + token_from_format;
|
|
|
|
command = subst(command, token_from_format,
|
|
quoteName(filename.toFilesystemEncoding(), quote_shell_filename));
|
|
command = subst(command, token_path_format,
|
|
quoteName(onlyPath(filename.toFilesystemEncoding()), quote_shell_filename));
|
|
command = subst(command, token_socket_format, quoteName(theServerSocket().address()));
|
|
LYXERR(Debug::FILES, "Executing command: " << command);
|
|
// FIXME UNICODE utf8 can be wrong for files
|
|
buffer.message(_("Executing command: ") + from_utf8(command));
|
|
|
|
Systemcall one;
|
|
one.startscript(Systemcall::DontWait, command,
|
|
buffer.filePath(), buffer.layoutPos());
|
|
|
|
// we can't report any sort of error, since we aren't waiting
|
|
return true;
|
|
}
|
|
|
|
|
|
docstring const Formats::prettyName(string const & name) const
|
|
{
|
|
Format const * format = getFormat(name);
|
|
if (format)
|
|
return format->prettyname();
|
|
else
|
|
return from_utf8(name);
|
|
}
|
|
|
|
|
|
string const Formats::extension(string const & name) const
|
|
{
|
|
Format const * format = getFormat(name);
|
|
if (format)
|
|
return format->extension();
|
|
else
|
|
return name;
|
|
}
|
|
|
|
|
|
string const Formats::extensions(string const & name) const
|
|
{
|
|
Format const * format = getFormat(name);
|
|
if (format)
|
|
return format->extensions();
|
|
else
|
|
return name;
|
|
}
|
|
|
|
|
|
namespace {
|
|
|
|
typedef Translator<Flavor, string> FlavorTranslator;
|
|
|
|
|
|
FlavorTranslator initFlavorTranslator()
|
|
{
|
|
FlavorTranslator f(Flavor::LaTeX, "latex");
|
|
f.addPair(Flavor::DviLuaTeX, "dviluatex");
|
|
f.addPair(Flavor::LuaTeX, "luatex");
|
|
f.addPair(Flavor::PdfLaTeX, "pdflatex");
|
|
f.addPair(Flavor::XeTeX, "xetex");
|
|
f.addPair(Flavor::DocBook5, "docbook-xml");
|
|
f.addPair(Flavor::Html, "xhtml");
|
|
f.addPair(Flavor::Text, "text");
|
|
f.addPair(Flavor::LyX, "lyx");
|
|
return f;
|
|
}
|
|
|
|
|
|
FlavorTranslator const & flavorTranslator()
|
|
{
|
|
static FlavorTranslator const translator = initFlavorTranslator();
|
|
return translator;
|
|
}
|
|
|
|
} // namespace
|
|
|
|
|
|
std::string flavor2format(Flavor flavor)
|
|
{
|
|
return flavorTranslator().find(flavor);
|
|
}
|
|
|
|
|
|
/* Not currently needed, but I'll leave the code in case it is.
|
|
Flavor format2flavor(std::string fmt)
|
|
{
|
|
return flavorTranslator().find(fmt);
|
|
} */
|
|
|
|
} // namespace lyx
|