/* Adjust the length of the buffer by the amount necessary to
accomodate appending a string of length N to the buffer
contents. */
void
tui_file_adjust_strbuf (int n, struct ui_file *file)
{
struct tui_stream *stream = ui_file_data (file);
int non_null_chars;
if (stream->ts_magic != &tui_file_magic)
internal_error (__FILE__, __LINE__,
_("tui_file_adjust_strbuf: bad magic number"));
if (stream->ts_streamtype != astring)
return;
if (stream->ts_strbuf)
{
/* There is already a buffer allocated. */
non_null_chars = strlen (stream->ts_strbuf);
if (n > (stream->ts_buflen - non_null_chars - 1))
{
stream->ts_buflen = n + non_null_chars + 1;
stream->ts_strbuf = xrealloc (stream->ts_strbuf, stream->ts_buflen);
}
}
else
/* No buffer yet, so allocate one of the desired size. */
stream->ts_strbuf = xmalloc ((n + 1) * sizeof (char));
}
static void
tui_file_rewind (struct ui_file *file)
{
struct tui_stream *stream = ui_file_data (file);
if (stream->ts_magic != &tui_file_magic)
internal_error (__FILE__, __LINE__,
_("tui_file_rewind: bad magic number"));
stream->ts_strbuf[0] = '\0';
}
char *
tui_file_get_strbuf (struct ui_file *file)
{
struct tui_stream *stream = ui_file_data (file);
if (stream->ts_magic != &tui_file_magic)
internal_error (__FILE__, __LINE__,
_("tui_file_get_strbuf: bad magic number"));
return (stream->ts_strbuf);
}
static void
ioscm_file_port_delete (struct ui_file *file)
{
ioscm_file_port *stream = (ioscm_file_port *) ui_file_data (file);
if (stream->magic != &file_port_magic)
internal_error (__FILE__, __LINE__,
_("ioscm_file_port_delete: bad magic number"));
xfree (stream);
}
struct ui_file *
tui_fileopen (FILE *stream)
{
struct ui_file *file = tui_file_new ();
struct tui_stream *tmpstream = ui_file_data (file);
tmpstream->ts_streamtype = afile;
tmpstream->ts_filestream = stream;
tmpstream->ts_strbuf = NULL;
tmpstream->ts_buflen = 0;
return file;
}
static void
ioscm_file_port_rewind (struct ui_file *file)
{
ioscm_file_port *stream = (ioscm_file_port *) ui_file_data (file);
if (stream->magic != &file_port_magic)
internal_error (__FILE__, __LINE__,
_("ioscm_file_port_rewind: bad magic number"));
scm_truncate_file (stream->port, 0);
}
static void
tui_file_put (struct ui_file *file,
ui_file_put_method_ftype *write,
void *dest)
{
struct tui_stream *stream = ui_file_data (file);
if (stream->ts_magic != &tui_file_magic)
internal_error (__FILE__, __LINE__,
_("tui_file_put: bad magic number"));
if (stream->ts_streamtype == astring)
write (dest, stream->ts_strbuf, strlen (stream->ts_strbuf));
}
static int
tui_file_isatty (struct ui_file *file)
{
struct tui_stream *stream = ui_file_data (file);
if (stream->ts_magic != &tui_file_magic)
internal_error (__FILE__, __LINE__,
_("tui_file_isatty: bad magic number"));
if (stream->ts_streamtype == afile)
return (isatty (fileno (stream->ts_filestream)));
else
return 0;
}
static void
ioscm_file_port_write (struct ui_file *file,
const char *buffer,
long length_buffer)
{
ioscm_file_port *stream = (ioscm_file_port *) ui_file_data (file);
if (stream->magic != &file_port_magic)
internal_error (__FILE__, __LINE__,
_("ioscm_pot_file_write: bad magic number"));
scm_c_write (stream->port, buffer, length_buffer);
}
static void
ioscm_file_port_put (struct ui_file *file,
ui_file_put_method_ftype *write,
void *dest)
{
ioscm_file_port *stream = (ioscm_file_port *) ui_file_data (file);
if (stream->magic != &file_port_magic)
internal_error (__FILE__, __LINE__,
_("ioscm_file_port_put: bad magic number"));
/* This function doesn't meld with ports very well. */
}
static void
tui_file_delete (struct ui_file *file)
{
struct tui_stream *tmpstream = ui_file_data (file);
if (tmpstream->ts_magic != &tui_file_magic)
internal_error (__FILE__, __LINE__,
_("tui_file_delete: bad magic number"));
if ((tmpstream->ts_streamtype == astring)
&& (tmpstream->ts_strbuf != NULL))
{
xfree (tmpstream->ts_strbuf);
}
xfree (tmpstream);
}
void
tui_file_fputs (const char *linebuffer, struct ui_file *file)
{
struct tui_stream *stream = ui_file_data (file);
if (stream->ts_streamtype == astring)
{
tui_file_adjust_strbuf (strlen (linebuffer), file);
strcat (stream->ts_strbuf, linebuffer);
}
else
{
tui_puts (linebuffer);
}
}
static void
tui_file_flush (struct ui_file *file)
{
struct tui_stream *stream = ui_file_data (file);
if (stream->ts_magic != &tui_file_magic)
internal_error (__FILE__, __LINE__,
_("tui_file_flush: bad magic number"));
switch (stream->ts_streamtype)
{
case astring:
break;
case afile:
fflush (stream->ts_filestream);
break;
}
}
struct ui_file *
tui_sfileopen (int n)
{
struct ui_file *file = tui_file_new ();
struct tui_stream *tmpstream = ui_file_data (file);
tmpstream->ts_streamtype = astring;
tmpstream->ts_filestream = NULL;
if (n > 0)
{
tmpstream->ts_strbuf = xmalloc ((n + 1) * sizeof (char));
tmpstream->ts_strbuf[0] = '\0';
}
else
/* Do not allocate the buffer now. The first time something is
printed one will be allocated by tui_file_adjust_strbuf(). */
tmpstream->ts_strbuf = NULL;
tmpstream->ts_buflen = n;
return file;
}
