_nc_db_have_data(DBT * key, DBT * data, char **buffer, int *size)
{
bool result = FALSE;
int used = data->size - 1;
char *have = (char *) data->data;
if (*have++ == 0) {
if (data->size > key->size
&& IS_TIC_MAGIC(have)) {
result = TRUE;
}
}
/*
* Update params in any case to make it simple to follow a index record
* to the data record.
*/
*buffer = have;
*size = used;
return result;
}
static int
next_char(void)
{
static char *result;
static size_t allocated;
int the_char;
if (!yyin) {
if (result != 0) {
FreeAndNull(result);
FreeAndNull(pushname);
allocated = 0;
}
/*
* An string with an embedded null will truncate the input. This is
* intentional (we don't read binary files here).
*/
if (bufptr == 0 || *bufptr == '\0')
return (EOF);
if (*bufptr == '\n') {
_nc_curr_line++;
_nc_curr_col = 0;
} else if (*bufptr == '\t') {
_nc_curr_col = (_nc_curr_col | 7);
}
} else if (!bufptr || !*bufptr) {
/*
* In theory this could be recoded to do its I/O one character at a
* time, saving the buffer space. In practice, this turns out to be
* quite hard to get completely right. Try it and see. If you
* succeed, don't forget to hack push_back() correspondingly.
*/
size_t used;
size_t len;
do {
bufstart = 0;
used = 0;
do {
if (used + (LEXBUFSIZ / 4) >= allocated) {
allocated += (allocated + LEXBUFSIZ);
result = typeRealloc(char, allocated, result);
if (result == 0)
return (EOF);
bufstart = result;
}
if (used == 0)
_nc_curr_file_pos = ftell(yyin);
if (fgets(result + used, (int) (allocated - used), yyin) != 0) {
bufstart = result;
if (used == 0) {
if (_nc_curr_line == 0
&& IS_TIC_MAGIC(result)) {
_nc_err_abort("This is a compiled terminal description, not a source");
}
_nc_curr_line++;
_nc_curr_col = 0;
}
} else {
if (used != 0)
strcat(result, "\n");
}
if ((bufptr = bufstart) != 0) {
used = strlen(bufptr);
while (iswhite(*bufptr)) {
if (*bufptr == '\t') {
_nc_curr_col = (_nc_curr_col | 7) + 1;
} else {
_nc_curr_col++;
}
bufptr++;
}
/*
* Treat a trailing <cr><lf> the same as a <newline> so we
* can read files on OS/2, etc.
*/
if ((len = strlen(bufptr)) > 1) {
if (bufptr[len - 1] == '\n'
&& bufptr[len - 2] == '\r') {
len--;
bufptr[len - 1] = '\n';
bufptr[len] = '\0';
}
}
} else {
return (EOF);
}
} while (bufptr[len - 1] != '\n'); /* complete a line */
} while (result[0] == '#'); /* ignore comments */