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Buffer.cpp:

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- Move the saveCheckSum to both autosave file as emergency file read function.
- Extract the function parseLyxFormat.
- Improve comment about the older LyX format numbers.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@35829 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Vincent van Ravesteijn 2010-10-25 13:29:50 +00:00
parent c6d4080694
commit aab708c594
1 changed files with 36 additions and 26 deletions
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62
src/Buffer.cpp
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@ -885,29 +885,38 @@ void Buffer::setFullyLoaded(bool value)
}
Buffer::ReadStatus Buffer::readFile(Lexer & lex, FileName const & filename,
bool fromstring)
Buffer::ReadStatus Buffer::parseLyXFormat(Lexer & lex,
FileName const & fn, int & file_format) const
{
LASSERT(!filename.empty(), /**/);
// the first (non-comment) token _must_ be...
if (!lex.checkFor("\\lyxformat")) {
if(!lex.checkFor("\\lyxformat")) {
Alert::error(_("Document format failure"),
bformat(_("%1$s is not a readable LyX document."),
from_utf8(filename.absFileName())));
return ReadFailure;
}
bformat(_("%1$s is not a readable LyX document."),
from_utf8(fn.absFileName())));
return ReadNoLyXFormat;
}
string tmp_format;
lex >> tmp_format;
//lyxerr << "LyX Format: `" << tmp_format << '\'' << endl;
// if present remove ".," from string.
// LyX formats 217 and earlier were written as 2.17. This corresponds
// to files from LyX versions < 1.1.6.3. We just remove the dot in
// these cases. See also: www.lyx.org/trac/changeset/1313.
size_t dot = tmp_format.find_first_of(".,");
//lyxerr << " dot found at " << dot << endl;
if (dot != string::npos)
tmp_format.erase(dot, 1);
int const file_format = convert<int>(tmp_format);
//lyxerr << "format: " << file_format << endl;
tmp_format.erase(dot, 1);
file_format = convert<int>(tmp_format);
return ReadSuccess;
}
Buffer::ReadStatus Buffer::readFile(Lexer & lex, FileName const & fn,
bool fromstring)
{
int file_format;
ReadStatus const ret_plf = parseLyXFormat(lex, fn, file_format);
if (ret_plf != ReadSuccess)
return ret_plf;
// save timestamp and checksum of the original disk file, making sure
// to not overwrite them with those of the file created in the tempdir
@ -916,14 +925,13 @@ Buffer::ReadStatus Buffer::readFile(Lexer & lex, FileName const & filename,
// Save the timestamp and checksum of disk file. If filename is an
// emergency file, save the timestamp and checksum of the original lyx file
// because isExternallyModified will check for this file. (BUG4193)
string diskfile = filename.absFileName();
string diskfile = fn.absFileName();
if (suffixIs(diskfile, ".emergency"))
diskfile = diskfile.substr(0, diskfile.size() - 10);
saveCheckSum(FileName(diskfile));
}
if (file_format != LYX_FORMAT) {
if (fromstring)
// lyx2lyx would fail
return ReadWrongVersion;
@ -935,7 +943,7 @@ Buffer::ReadStatus Buffer::readFile(Lexer & lex, FileName const & filename,
" version of LyX, but a temporary"
" file for converting it could"
" not be created."),
from_utf8(filename.absFileName())));
from_utf8(fn.absFileName())));
return ReadFailure;
}
FileName const lyx2lyx = libFileSearch("lyx2lyx", "lyx2lyx");
@ -945,7 +953,7 @@ Buffer::ReadStatus Buffer::readFile(Lexer & lex, FileName const & filename,
" version of LyX, but the"
" conversion script lyx2lyx"
" could not be found."),
from_utf8(filename.absFileName())));
from_utf8(fn.absFileName())));
return ReadFailure;
}
ostringstream command;
@ -953,7 +961,7 @@ Buffer::ReadStatus Buffer::readFile(Lexer & lex, FileName const & filename,
<< ' ' << quoteName(lyx2lyx.toFilesystemEncoding())
<< " -t " << convert<string>(LYX_FORMAT)
<< " -o " << quoteName(tmpfile.toFilesystemEncoding())
<< ' ' << quoteName(filename.toSafeFilesystemEncoding());
<< ' ' << quoteName(fn.toSafeFilesystemEncoding());
string const command_str = command.str();
LYXERR(Debug::INFO, "Running '" << command_str << '\'');
@ -965,13 +973,13 @@ Buffer::ReadStatus Buffer::readFile(Lexer & lex, FileName const & filename,
bformat(_("%1$s is from an older version"
" of LyX, but the lyx2lyx script"
" failed to convert it."),
from_utf8(filename.absFileName())));
from_utf8(fn.absFileName())));
else
Alert::error(_("Conversion script failed"),
bformat(_("%1$s is from a newer version"
" of LyX and cannot be converted by the"
" lyx2lyx script."),
from_utf8(filename.absFileName())));
from_utf8(fn.absFileName())));
return ReadFailure;
} else {
// Do stuff with tmpfile name and buffer name here.
@ -984,7 +992,7 @@ Buffer::ReadStatus Buffer::readFile(Lexer & lex, FileName const & filename,
Alert::error(_("Document format failure"),
bformat(_("%1$s ended unexpectedly, which means"
" that it is probably corrupted."),
from_utf8(filename.absFileName())));
from_utf8(fn.absFileName())));
return ReadFailure;
}
@ -3640,9 +3648,10 @@ Buffer::ReadStatus Buffer::readEmergency(FileName const & fn)
docstring str;
bool res;
ReadStatus const ret_rf = readFile(emergencyFile);
if (res = (ret_rf == ReadSuccess))
if (res = (ret_rf == ReadSuccess)) {
saveCheckSum(fn);
str = _("Document was successfully recovered.");
else
} else
str = _("Document was NOT successfully recovered.");
str += "\n\n" + bformat(_("Remove emergency file now?\n(%1$s)"),
makeDisplayPath(emergencyFile.absFileName()));
@ -3691,6 +3700,7 @@ Buffer::ReadStatus Buffer::readAutosave(FileName const & fn)
// the file is not saved if we load the autosave file.
if (ret_rf == ReadSuccess) {
markDirty();
saveCheckSum(autosaveFile);
return ReadSuccess;
}
return ReadAutosaveFailure;