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Discard data for docs where the alternate transcode-from-8bit trial fails after the transcode from utf-8 has failed

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This commit is contained in:
Jean-Francois Dockes 2015-08-13 18:14:47 +02:00
parent 17d0a6cbba
commit 4713c3e488
1 changed files with 9 additions and 2 deletions
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11
src/internfile/txtdcode.cpp
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@ -26,14 +26,18 @@
// where this is a good old 8bit-encoded text document left-over when
// the locale was switched to utf-8. We try to guess a charset
// according to the locale language and use it. This is a very rough
// heuristic, but may be better than discarding the data.
// heuristic, but may be better than discarding the data.
// If we still get a significant number of decode errors, the doc is
// quite probably binary, so just fail.
static bool alternate_decode(const string& in, string& out)
{
string lang = localelang();
string code = langtocode(lang);
LOGDEB(("RecollFilter::txtdcode: trying alternate decode from %s\n",
code.c_str()));
return transcode(in, out, code, cstr_utf8);
int ecnt;
bool ret = transcode(in, out, code, cstr_utf8, &ecnt);
return ecnt > 5 ? false : ret;
}
bool RecollFilter::txtdcode(const string& who)
@ -58,8 +62,11 @@ bool RecollFilter::txtdcode(const string& who)
if (samecharset(ocs, cstr_utf8)) {
ret = alternate_decode(itext, otext);
} else {
ret = false;
}
if (!ret) {
LOGDEB(("txtdcode: failed. Doc is not text?\n"));
itext.erase();
return false;
}