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Fix bug http://bugzilla.lyx.org/show_bug.cgi?id=5489 and at the same time

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properly fix bugs 5216 and 5280. The best thing to do would be recognizing
at configure time a buggy iconv and #defining WORKAROUND_ICONV_BUG in
config.h, but I don't know how that could be done.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@27618 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Enrico Forestieri 2008-11-18 10:40:22 +00:00
parent 45624a5864
commit 07c0a6e496
2 changed files with 36 additions and 15 deletions
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26
src/Paragraph.cpp
View File

@ -757,16 +757,16 @@ void Paragraph::Private::latexInset(
}
bool close = false;
odocstringstream ods;
odocstream::pos_type const len = os.tellp();
if (inset->forceLTR()
&& running_font.isRightToLeft()
// ERT is an exception, it should be output with no decorations at all
&& inset->lyxCode() != ERT_CODE) {
if (running_font.language()->lang() == "farsi")
ods << "\\beginL{}";
os << "\\beginL{}";
else
ods << "\\L{";
os << "\\L{";
close = true;
}
@ -785,7 +785,7 @@ void Paragraph::Private::latexInset(
if (open_font && inset->noFontChange()) {
bool closeLanguage = arabtex
|| basefont.isRightToLeft() == running_font.isRightToLeft();
unsigned int count = running_font.latexWriteEndChanges(ods,
unsigned int count = running_font.latexWriteEndChanges(os,
bparams, runparams, basefont, basefont, closeLanguage);
column += count;
// if any font properties were closed, update the running_font,
@ -808,7 +808,7 @@ void Paragraph::Private::latexInset(
int tmp;
try {
tmp = inset->latex(ods, runparams);
tmp = inset->latex(os, runparams);
} catch (EncodingException & e) {
// add location information and throw again.
e.par_id = id_;
@ -817,14 +817,12 @@ void Paragraph::Private::latexInset(
}
if (close) {
if (running_font.language()->lang() == "farsi")
ods << "\\endL{}";
else
ods << '}';
if (running_font.language()->lang() == "farsi")
os << "\\endL{}";
else
os << '}';
}
os << ods.str();
if (tmp) {
for (int j = 0; j < tmp; ++j)
texrow.newline();
@ -832,7 +830,7 @@ void Paragraph::Private::latexInset(
texrow.start(owner_->id(), i + 1);
column = 0;
} else {
column += ods.str().size();
column += os.tellp() - len;
}
if (owner_->lookupChange(i).type == Change::DELETED)
@ -2051,10 +2049,8 @@ bool Paragraph::latex(BufferParams const & bparams,
if (!runparams.verbatim &&
runparams.encoding->package() != Encoding::none &&
font.language()->encoding()->package() != Encoding::none) {
odocstringstream ods;
pair<bool, int> const enc_switch = switchEncoding(ods, bparams,
pair<bool, int> const enc_switch = switchEncoding(os, bparams,
runparams, *(font.language()->encoding()));
os << ods.str();
if (enc_switch.first) {
column += enc_switch.second;
runparams.encoding = font.language()->encoding();

25
src/support/docstream.cpp
View File

@ -84,6 +84,22 @@ protected:
extern_type * to, extern_type * to_end,
extern_type *& to_next) const
{
#define WORKAROUND_ICONV_BUG 1
#if WORKAROUND_ICONV_BUG
// Due to a bug in some iconv versions, when the last char in
// the buffer is a wide char, it gets truncated (see bugs 5216,
// 5280, and also 5489). As a workaround, we append a null
// char and then remove it from output after the conversion.
intern_type * from_new = 0;
if (*(from_end - 1) >= 0x80) {
size_t len = from_end - from;
from_new = new intern_type[len + 1];
memcpy(from_new, from, len * sizeof(intern_type));
from_new[len] = 0;
from_end = from_new + len + 1;
from = from_new;
}
#endif
size_t inbytesleft = (from_end - from) * sizeof(intern_type);
size_t outbytesleft = (to_end - to) * sizeof(extern_type);
from_next = from;
@ -91,6 +107,12 @@ protected:
result const retval = do_iconv(out_cd_,
reinterpret_cast<char const **>(&from_next),
&inbytesleft, &to_next, &outbytesleft);
#if WORKAROUND_ICONV_BUG
// Remove from output the null char that we inserted at the end
// of the input buffer in order to circumvent an iconv bug.
if (from_new)
--to_next;
#endif
if (retval == base::error) {
fprintf(stderr,
"Error %d returned from iconv when converting from %s to %s: %s\n",
@ -119,6 +141,9 @@ protected:
fputc('\n', stderr);
fflush(stderr);
}
#if WORKAROUND_ICONV_BUG
delete[] from_new;
#endif
return retval;
}
virtual result do_unshift(state_type &, extern_type * to,