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Fix bug #8944 by introducing a maximum size for keys we process.

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The problem is caused by the fact that Encodings::fromLaTeXCommand
is very slow. It's not clear to me if that can be fixed, or if that
is just how things are. Georg suggested another time that we might
use tex2lyx in or instead of convertLatexCommands() in BiblioInfo.cpp,
but I don't know if that would much faster. The author string in the
example file is 32K characters long. As long as some files tex2lyx
would convert.
This commit is contained in:
Richard Heck 2014-02-10 23:11:35 -05:00
parent 93be9cdc93
commit b7a1eb68e1
2 changed files with 24 additions and 11 deletions
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33
src/BiblioInfo.cpp
View File

@ -271,9 +271,9 @@ docstring const BibTeXInfo::getAbbreviatedAuthor(bool jurabib_style) const
return authors;
}
docstring author = convertLaTeXCommands(operator[]("author"));
docstring author = operator[]("author");
if (author.empty()) {
author = convertLaTeXCommands(operator[]("editor"));
author = operator[]("editor");
if (author.empty())
return author;
}
@ -291,18 +291,20 @@ docstring const BibTeXInfo::getAbbreviatedAuthor(bool jurabib_style) const
+ "/" + familyName(authors[1]);
if (authors.size() == 3)
shortauthor += "/" + familyName(authors[2]);
return shortauthor;
return convertLaTeXCommands(shortauthor);
}
docstring retval = familyName(authors[0]);
if (authors.size() == 2 && authors[1] != "others")
return bformat(from_ascii("%1$s and %2$s"),
retval = bformat(from_ascii("%1$s and %2$s"),
familyName(authors[0]), familyName(authors[1]));
if (authors.size() >= 2)
return bformat(from_ascii("%1$s et al."),
retval = bformat(from_ascii("%1$s et al."),
familyName(authors[0]));
return familyName(authors[0]);
return convertLaTeXCommands(retval);
}
@ -471,6 +473,11 @@ docstring BibTeXInfo::expandFormat(docstring const & format,
{
// incorrect use of macros could put us in an infinite loop
static int max_passes = 5000;
// the use of overly large keys can lead to performance problems, due
// to eventual attempts to convert LaTeX macros to unicode. See bug
// #8944. This is perhaps not the best solution, but it will have to
// do for now.
static size_t max_keysize = 128;
odocstringstream ret; // return value
string key;
bool scanning_key = false;
@ -509,7 +516,7 @@ docstring BibTeXInfo::expandFormat(docstring const & format,
ret << trans;
} else {
docstring const val =
getValueForKey(key, buf, before, after, dialog, xref);
getValueForKey(key, buf, before, after, dialog, xref, max_keysize);
if (!scanning_rich)
ret << from_ascii("{!<span class=\"bib-" + key + "\">!}");
ret << val;
@ -664,8 +671,10 @@ docstring const & BibTeXInfo::operator[](string const & field) const
docstring BibTeXInfo::getValueForKey(string const & oldkey, Buffer const & buf,
docstring const & before, docstring const & after, docstring const & dialog,
BibTeXInfo const * const xref) const
BibTeXInfo const * const xref, size_t maxsize) const
{
// anything less is pointless
LASSERT(maxsize >= 16, maxsize = 16);
string key = oldkey;
bool cleanit = false;
if (prefixIs(oldkey, "clean:")) {
@ -724,9 +733,13 @@ docstring BibTeXInfo::getValueForKey(string const & oldkey, Buffer const & buf,
else if (key == "year")
ret = getYear();
}
if (cleanit)
return html::cleanAttr(ret);
if (cleanit)
ret = html::cleanAttr(ret);
// make sure it is not too big
if (ret.size() > maxsize)
ret = ret.substr(0, maxsize - 3) + from_ascii("...");
return ret;
}

2
src/BiblioInfo.h
View File

@ -114,7 +114,7 @@ private:
/// be the one referenced in the crossref field.
docstring getValueForKey(std::string const & key, Buffer const & buf,
docstring const & before, docstring const & after, docstring const & dialog,
BibTeXInfo const * const xref = 0) const;
BibTeXInfo const * const xref, size_t maxsize = 1024) const;
/// replace %keys% in a format string with their values
/// called from getInfo()
/// format strings may contain: