void Gobby::OperationOpen::on_stream_read(
const Glib::RefPtr<Gio::AsyncResult>& result)
{
try
{
gssize size = m_stream->read_finish(result);
// Close stream after reading, this signals the idle handler
// that all data has been read from the file.
if(size <= 0)
{
m_stream->close();
m_stream.reset();
m_buffer.reset(NULL);
// If the idle handler is not connected, then we have
// already processed all the data.
if(!m_idle_connection.connected())
read_finish();
}
else
{
m_raw_content.insert(m_raw_content.end(),
m_buffer->buf,
m_buffer->buf + size);
// Process read data in an idle handler
if(!m_idle_connection.connected())
{
m_idle_connection =
Glib::signal_idle().connect(
sigc::mem_fun(*this,
&OperationOpen::
on_idle));
}
m_stream->read_async(
m_buffer->buf, buffer::SIZE,
sigc::mem_fun(
*this,
&OperationOpen::on_stream_read));
}
}
catch(const Glib::Exception& ex)
{
error(ex.what());
}
}
bool Gobby::OperationOpen::on_idle()
{
static const unsigned int CONVERT_BUFFER_SIZE = 1024;
const char* inbuffer = &m_raw_content[m_raw_pos];
char* inbuf = const_cast<char*>(inbuffer);
gsize inbytes = m_raw_content.size() - m_raw_pos;
char outbuffer[CONVERT_BUFFER_SIZE];
gchar* outbuf = outbuffer;
gsize outbytes = CONVERT_BUFFER_SIZE;
/* iconv is defined as libiconv on Windows, or at least when using the
* binary packages from ftp.gnome.org. Therefore we can't propely
* call Glib::IConv::iconv. Therefore, we use the C API here. */
const std::size_t result = g_iconv(m_iconv->gobj(),
&inbuf, &inbytes, &outbuf, &outbytes);
bool more_to_process = (inbytes != 0);
if(result == static_cast<std::size_t>(-1))
{
if(errno == EILSEQ)
{
// Invalid text for the current encoding
encoding_error();
return false;
}
if(errno == EINVAL)
{
// If EINVAL is set, this means that an incomplete
// multibyte sequence was at the end of the input.
// We might have some more bytes, but those do not
// make up a whole character, so we need to wait for
// more input.
if(!m_stream)
{
// However, if we already read all input, then
// there is no more input to come. We
// consider this an error since the file
// should not end with an incomplete multibyte
// sequence.
encoding_error();
return false;
}
else
{
// Otherwise, we need to wait for more data
// to process.
more_to_process = false;
}
}
}
m_raw_pos += (inbuf - inbuffer);
// We now have outbuf - outbuffer bytes of valid UTF-8 in outbuffer.
char* prev = outbuffer;
char* pos;
const char to_find[] = { '\r', '\n', '\0' };
/* TODO: Write directly into the buffer here,
* instead of memmoving stuff. */
while( (pos = std::find_first_of<char*>(prev, outbuf,
to_find, to_find + sizeof(to_find))) != outbuf)
{
if(*pos == '\0')
{
// There is a nullbyte in the conversion. As normal
// text files don't contain nullbytes, this only
// occurs when converting for example a UTF-16 from
// ISO-8859-1 to UTF-8 (note that the UTF-16 file is
// valid ISO-8859-1, it just contains lots of
// nullbytes). We therefore produce an error here.
encoding_error();
return false;
}
else
{
// We convert everything to '\n' as line separator,
// but remember the current eol-style to correctly
// save the document back to disk.
prev = pos + 1;
if(*pos == '\r' && prev != outbuf && *prev == '\n')
{
// CRLF style line break
std::memmove(prev, prev + 1,
outbuf - prev - 1);
m_eol_style = DocumentInfoStorage::EOL_CRLF;
--outbuf;
}
else if(*pos == '\r')
{
*pos = '\n';
m_eol_style = DocumentInfoStorage::EOL_CR;
}
else
{
m_eol_style = DocumentInfoStorage::EOL_LF;
}
}
}
GtkTextIter insert_iter;
gtk_text_buffer_get_end_iter(m_content, &insert_iter);
gtk_text_buffer_insert(m_content, &insert_iter, outbuffer,
outbuf - outbuffer);
// Done reading and converting the whole file
if(!more_to_process && !m_stream)
read_finish();
return more_to_process;
}
void USBTester::epbulk_out_callback()
{
read_finish(bulk_out);
read_start(bulk_out, bulk_buf, sizeof(bulk_buf));
}
void USBTester::epint_out_callback()
{
read_finish(int_out);
read_start(int_out, int_buf, sizeof(int_buf));
}
const wchar_t *
el_wgets(EditLine *el, int *nread)
{
int retval;
el_action_t cmdnum = 0;
int num; /* how many chars we have read at NL */
wchar_t ch;
int nrb;
if (nread == NULL)
nread = &nrb;
*nread = 0;
el->el_read->read_errno = 0;
if (el->el_flags & NO_TTY) {
el->el_line.lastchar = el->el_line.buffer;
return noedit_wgets(el, nread);
}
#ifdef FIONREAD
if (el->el_tty.t_mode == EX_IO && el->el_read->macros.level < 0) {
int chrs = 0;
(void) ioctl(el->el_infd, FIONREAD, &chrs);
if (chrs == 0) {
if (tty_rawmode(el) < 0) {
errno = 0;
*nread = 0;
return NULL;
}
}
}
#endif /* FIONREAD */
if ((el->el_flags & UNBUFFERED) == 0)
read_prepare(el);
if (el->el_flags & EDIT_DISABLED) {
if ((el->el_flags & UNBUFFERED) == 0)
el->el_line.lastchar = el->el_line.buffer;
terminal__flush(el);
return noedit_wgets(el, nread);
}
for (num = -1; num == -1;) { /* while still editing this line */
/* if EOF or error */
if (read_getcmd(el, &cmdnum, &ch) == -1)
break;
if ((size_t)cmdnum >= el->el_map.nfunc) /* BUG CHECK command */
continue; /* try again */
/* now do the real command */
/* vi redo needs these way down the levels... */
el->el_state.thiscmd = cmdnum;
el->el_state.thisch = ch;
if (el->el_map.type == MAP_VI &&
el->el_map.current == el->el_map.key &&
el->el_chared.c_redo.pos < el->el_chared.c_redo.lim) {
if (cmdnum == VI_DELETE_PREV_CHAR &&
el->el_chared.c_redo.pos != el->el_chared.c_redo.buf
&& iswprint(el->el_chared.c_redo.pos[-1]))
el->el_chared.c_redo.pos--;
else
*el->el_chared.c_redo.pos++ = ch;
}
retval = (*el->el_map.func[cmdnum]) (el, ch);
/* save the last command here */
el->el_state.lastcmd = cmdnum;
/* use any return value */
switch (retval) {
case CC_CURSOR:
re_refresh_cursor(el);
break;
case CC_REDISPLAY:
re_clear_lines(el);
re_clear_display(el);
/* FALLTHROUGH */
case CC_REFRESH:
re_refresh(el);
break;
case CC_REFRESH_BEEP:
re_refresh(el);
terminal_beep(el);
break;
case CC_NORM: /* normal char */
break;
case CC_ARGHACK: /* Suggested by Rich Salz */
/* <*****@*****.**> */
continue; /* keep going... */
case CC_EOF: /* end of file typed */
if ((el->el_flags & UNBUFFERED) == 0)
num = 0;
else if (num == -1) {
*el->el_line.lastchar++ = CONTROL('d');
el->el_line.cursor = el->el_line.lastchar;
num = 1;
}
break;
case CC_NEWLINE: /* normal end of line */
num = (int)(el->el_line.lastchar - el->el_line.buffer);
break;
case CC_FATAL: /* fatal error, reset to known state */
/* put (real) cursor in a known place */
re_clear_display(el); /* reset the display stuff */
ch_reset(el); /* reset the input pointers */
read_clearmacros(&el->el_read->macros);
re_refresh(el); /* print the prompt again */
break;
case CC_ERROR:
default: /* functions we don't know about */
terminal_beep(el);
terminal__flush(el);
break;
}
el->el_state.argument = 1;
el->el_state.doingarg = 0;
el->el_chared.c_vcmd.action = NOP;
if (el->el_flags & UNBUFFERED)
break;
}
terminal__flush(el); /* flush any buffered output */
/* make sure the tty is set up correctly */
if ((el->el_flags & UNBUFFERED) == 0) {
read_finish(el);
*nread = num != -1 ? num : 0;
} else
*nread = (int)(el->el_line.lastchar - el->el_line.buffer);
if (*nread == 0) {
if (num == -1) {
*nread = -1;
if (el->el_read->read_errno)
errno = el->el_read->read_errno;
}
return NULL;
} else
return el->el_line.buffer;
}
const wchar_t *
el_wgets(EditLine *el, int *nread)
{
int retval;
el_action_t cmdnum = 0;
int num; /* how many chars we have read at NL */
wchar_t wc;
wchar_t ch, *cp;
int crlf = 0;
int nrb;
if (nread == NULL)
nread = &nrb;
*nread = 0;
if (el->el_flags & NO_TTY) {
size_t idx;
cp = el->el_line.buffer;
while ((num = (*el->el_read->read_char)(el, &wc)) == 1) {
*cp = wc;
/* make sure there is space for next character */
if (cp + 1 >= el->el_line.limit) {
idx = (size_t)(cp - el->el_line.buffer);
if (!ch_enlargebufs(el, (size_t)2))
break;
cp = &el->el_line.buffer[idx];
}
cp++;
if (el->el_flags & UNBUFFERED)
break;
if (cp[-1] == '\r' || cp[-1] == '\n')
break;
}
if (num == -1) {
if (errno == EINTR)
cp = el->el_line.buffer;
el->el_errno = errno;
}
goto noedit;
}
#ifdef FIONREAD
if (el->el_tty.t_mode == EX_IO && el->el_chared.c_macro.level < 0) {
int chrs = 0;
(void) ioctl(el->el_infd, FIONREAD, &chrs);
if (chrs == 0) {
if (tty_rawmode(el) < 0) {
errno = 0;
*nread = 0;
return NULL;
}
}
}
#endif /* FIONREAD */
if ((el->el_flags & UNBUFFERED) == 0)
read_prepare(el);
if (el->el_flags & EDIT_DISABLED) {
size_t idx;
if ((el->el_flags & UNBUFFERED) == 0)
cp = el->el_line.buffer;
else
cp = el->el_line.lastchar;
terminal__flush(el);
while ((num = (*el->el_read->read_char)(el, &wc)) == 1) {
*cp = wc;
/* make sure there is space next character */
if (cp + 1 >= el->el_line.limit) {
idx = (size_t)(cp - el->el_line.buffer);
if (!ch_enlargebufs(el, (size_t)2))
break;
cp = &el->el_line.buffer[idx];
}
cp++;
crlf = cp[-1] == '\r' || cp[-1] == '\n';
if (el->el_flags & UNBUFFERED)
break;
if (crlf)
break;
}
if (num == -1) {
if (errno == EINTR)
cp = el->el_line.buffer;
el->el_errno = errno;
}
goto noedit;
}
for (num = -1; num == -1;) { /* while still editing this line */
#ifdef DEBUG_EDIT
read_debug(el);
#endif /* DEBUG_EDIT */
/* if EOF or error */
if (read_getcmd(el, &cmdnum, &ch) == -1) {
#ifdef DEBUG_READ
(void) fprintf(el->el_errfile,
"Returning from el_gets\n");
#endif /* DEBUG_READ */
break;
}
if (el->el_errno == EINTR) {
el->el_line.buffer[0] = '\0';
el->el_line.lastchar =
el->el_line.cursor = el->el_line.buffer;
break;
}
if ((size_t)cmdnum >= el->el_map.nfunc) { /* BUG CHECK command */
#ifdef DEBUG_EDIT
(void) fprintf(el->el_errfile,
"ERROR: illegal command from key 0%o\r\n", ch);
#endif /* DEBUG_EDIT */
continue; /* try again */
}
/* now do the real command */
#ifdef DEBUG_READ
{
el_bindings_t *b;
for (b = el->el_map.help; b->name; b++)
if (b->func == cmdnum)
break;
if (b->name)
(void) fprintf(el->el_errfile,
"Executing %ls\n", b->name);
else
(void) fprintf(el->el_errfile,
"Error command = %d\n", cmdnum);
}
#endif /* DEBUG_READ */
/* vi redo needs these way down the levels... */
el->el_state.thiscmd = cmdnum;
el->el_state.thisch = ch;
if (el->el_map.type == MAP_VI &&
el->el_map.current == el->el_map.key &&
el->el_chared.c_redo.pos < el->el_chared.c_redo.lim) {
if (cmdnum == VI_DELETE_PREV_CHAR &&
el->el_chared.c_redo.pos != el->el_chared.c_redo.buf
&& iswprint(el->el_chared.c_redo.pos[-1]))
el->el_chared.c_redo.pos--;
else
*el->el_chared.c_redo.pos++ = ch;
}
retval = (*el->el_map.func[cmdnum]) (el, ch);
#ifdef DEBUG_READ
(void) fprintf(el->el_errfile,
"Returned state %d\n", retval );
#endif /* DEBUG_READ */
/* save the last command here */
el->el_state.lastcmd = cmdnum;
/* use any return value */
switch (retval) {
case CC_CURSOR:
re_refresh_cursor(el);
break;
case CC_REDISPLAY:
re_clear_lines(el);
re_clear_display(el);
/* FALLTHROUGH */
case CC_REFRESH:
re_refresh(el);
break;
case CC_REFRESH_BEEP:
re_refresh(el);
terminal_beep(el);
break;
case CC_NORM: /* normal char */
break;
case CC_ARGHACK: /* Suggested by Rich Salz */
/* <*****@*****.**> */
continue; /* keep going... */
case CC_EOF: /* end of file typed */
if ((el->el_flags & UNBUFFERED) == 0)
num = 0;
else if (num == -1) {
*el->el_line.lastchar++ = CONTROL('d');
el->el_line.cursor = el->el_line.lastchar;
num = 1;
}
break;
case CC_NEWLINE: /* normal end of line */
num = (int)(el->el_line.lastchar - el->el_line.buffer);
break;
case CC_FATAL: /* fatal error, reset to known state */
#ifdef DEBUG_READ
(void) fprintf(el->el_errfile,
"*** editor fatal ERROR ***\r\n\n");
#endif /* DEBUG_READ */
/* put (real) cursor in a known place */
re_clear_display(el); /* reset the display stuff */
ch_reset(el, 1); /* reset the input pointers */
re_refresh(el); /* print the prompt again */
break;
case CC_ERROR:
default: /* functions we don't know about */
#ifdef DEBUG_READ
(void) fprintf(el->el_errfile,
"*** editor ERROR ***\r\n\n");
#endif /* DEBUG_READ */
terminal_beep(el);
terminal__flush(el);
break;
}
el->el_state.argument = 1;
el->el_state.doingarg = 0;
el->el_chared.c_vcmd.action = NOP;
if (el->el_flags & UNBUFFERED)
break;
}
terminal__flush(el); /* flush any buffered output */
/* make sure the tty is set up correctly */
if ((el->el_flags & UNBUFFERED) == 0) {
read_finish(el);
*nread = num != -1 ? num : 0;
} else {
*nread = (int)(el->el_line.lastchar - el->el_line.buffer);
}
goto done;
noedit:
el->el_line.cursor = el->el_line.lastchar = cp;
*cp = '\0';
*nread = (int)(el->el_line.cursor - el->el_line.buffer);
done:
if (*nread == 0) {
if (num == -1) {
*nread = -1;
errno = el->el_errno;
}
return NULL;
} else
return el->el_line.buffer;
}
