qse/ase/lsp/init.c

132 lines
2.7 KiB
C

/*
* $Id: init.c,v 1.3 2005-09-18 13:06:43 bacon Exp $
*/
#include <xp/lsp/lsp.h>
#include <xp/bas/memory.h>
#include <xp/bas/assert.h>
xp_lsp_t* xp_lsp_open (xp_lsp_t* lsp,
xp_size_t mem_ubound, xp_size_t mem_ubound_inc)
{
if (lsp == XP_NULL) {
lsp = (xp_lsp_t*)xp_malloc(xp_sizeof(xp_lsp_t));
if (lsp == XP_NULL) return lsp;
lsp->__malloced = xp_true;
}
else lsp->__malloced = xp_false;
if (xp_lsp_token_open(&lsp->token, 0) == XP_NULL) {
if (lsp->__malloced) xp_free (lsp);
return XP_NULL;
}
lsp->errnum = XP_LSP_ERR_NONE;
//lsp->opt_undef_symbol = 1;
lsp->opt_undef_symbol = 0;
lsp->curc = XP_CHAR_EOF;
lsp->input_func = XP_NULL;
lsp->output_func = XP_NULL;
lsp->input_arg = XP_NULL;
lsp->output_arg = XP_NULL;
lsp->mem = xp_lsp_mem_new (mem_ubound, mem_ubound_inc);
if (lsp->mem == XP_NULL) {
xp_lsp_token_close (&lsp->token);
if (lsp->__malloced) xp_free (lsp);
return XP_NULL;
}
if (xp_lsp_add_prims (lsp->mem) == -1) {
xp_lsp_mem_free (lsp->mem);
xp_lsp_token_close (&lsp->token);
if (lsp->__malloced) xp_free (lsp);
return XP_NULL;
}
return lsp;
}
void xp_lsp_close (xp_lsp_t* lsp)
{
xp_assert (lsp != XP_NULL);
xp_lsp_mem_free (lsp->mem);
xp_lsp_token_close (&lsp->token);
if (lsp->__malloced) xp_free (lsp);
}
int xp_lsp_error (xp_lsp_t* lsp, xp_char_t* buf, xp_size_t size)
{
if (buf != XP_NULL || size == 0) return lsp->errnum;
// TODO:...
/*
switch (lsp->errnum) {
default:
xp_lsp_copy_string (buf, size, "unknown error");
}
*/
return lsp->errnum;
}
int xp_lsp_attach_input (xp_lsp_t* lsp, xp_lsp_io_t input, void* arg)
{
if (xp_lsp_detach_input(lsp) == -1) return -1;
xp_assert (lsp->input_func == XP_NULL);
if (input(XP_LSP_IO_OPEN, arg, XP_NULL, 0) == -1) {
/* TODO: set error number */
return -1;
}
lsp->input_func = input;
lsp->input_arg = arg;
return 0;
}
int xp_lsp_detach_input (xp_lsp_t* lsp)
{
if (lsp->input_func != XP_NULL) {
if (lsp->input_func(XP_LSP_IO_CLOSE, lsp->input_arg, XP_NULL, 0) == -1) {
/* TODO: set error number */
return -1;
}
lsp->input_func = XP_NULL;
lsp->input_arg = XP_NULL;
}
return 0;
}
int xp_lsp_attach_output (xp_lsp_t* lsp, xp_lsp_io_t output, void* arg)
{
if (xp_lsp_detach_output(lsp) == -1) return -1;
xp_assert (lsp->output_func == XP_NULL);
if (output(XP_LSP_IO_OPEN, arg, XP_NULL, 0) == -1) {
/* TODO: set error number */
return -1;
}
lsp->output_func = output;
lsp->output_arg = arg;
return 0;
}
int xp_lsp_detach_output (xp_lsp_t* lsp)
{
if (lsp->output_func != XP_NULL) {
if (lsp->output_func(XP_LSP_IO_CLOSE, lsp->output_arg, XP_NULL, 0) == -1) {
/* TODO: set error number */
return -1;
}
lsp->output_func = XP_NULL;
lsp->output_arg = XP_NULL;
}
return 0;
}