sexp_t *read_one_sexp(sexp_mem_t *smem, sexp_iowrap_t *iow) {
sexp_t *sx = NULL;
if (iow->cnt == 0) {
iow->cnt = read(iow->fd,iow->buf,BUFSIZ);
if (iow->cnt == 0) return NULL;
}
iow->cc = cparse_sexp(smem, iow->buf,iow->cnt,iow->cc);
while (iow->cc->last_sexp == NULL) {
if (iow->cc->error != 0) {
fprintf(stderr,"ERROR\n");
return NULL;
}
iow->cnt = read(iow->fd,iow->buf,BUFSIZ);
if (iow->cnt == 0)
return NULL;
iow->cc = cparse_sexp(smem, iow->buf,iow->cnt,iow->cc);
}
sx = iow->cc->last_sexp;
iow->cc->last_sexp = NULL;
return sx;
}
int main(int argc, char **argv) {
unsigned int len;
pcont_t *pc;
char inbuf[256];
char outbuf[1024];
strcpy(inbuf,RAWSTRING);
len = strlen(inbuf);
pc = NULL;
pc = cparse_sexp(inbuf,len,pc);
if (sexp_errno == SEXP_ERR_INCOMPLETE) {
printf("Incomplete expression detected.\n");
} else {
printf("Unexpected error: %d\n", sexp_errno);
exit(EXIT_FAILURE);
}
print_pcont(pc,outbuf,1024);
printf("%s\n",outbuf);
destroy_continuation(pc);
sexp_cleanup();
exit(EXIT_SUCCESS);
}
int main(int argc, char **argv) {
sexp_t *sx_in, *sx_out;
int fd;
char *b;
size_t l = 0;
CSTRING *s = NULL;
pcont_t *pc;
/* read data */
fd = open("testdata",O_RDONLY);
if (fd <= 0) {
printf("Error opening test data file ``testdata''\n");
exit(1);
}
b = readfile(fd,&l,1024,256);
close(fd);
/* report */
printf("Read %lu bytes of data.\n",(unsigned long)l);
sx_in = (sexp_t *)malloc(sizeof(sexp_t));
assert(sx_in != NULL);
sx_in->ty = SEXP_VALUE;
sx_in->next = sx_in->list = NULL;
sx_in->aty = SEXP_BINARY;
sx_in->bindata = b;
sx_in->binlength = l;
sx_in = new_sexp_list(sx_in);
printf("Created expression.\n");
print_sexp_cstr(&s,sx_in,l+1024);
destroy_sexp(sx_in);
b = NULL;
sx_in = NULL;
printf("Destroyed AST and buffer.\n");
pc = init_continuation(NULL);
pc->mode = PARSER_INLINE_BINARY;
pc = cparse_sexp(s->base,s->len,pc);
sx_out = pc->last_sexp;
printf("Parsed unparsed version back to AST.\n");
assert(sx_out != NULL);
b = sx_out->list->bindata;
l = sx_out->list->binlength;
fd = open("testdata_out",O_RDWR|O_CREAT);
if (fd <= 0) {
printf("Error opening ``testdata_out'': Create empty file to write to.\n");
exit(1);
}
write(fd,b,l);
close(fd);
printf("Extracted and wrote bindata from AST.\n");
exit(1);
}