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This commit is contained in:
hyung-hwan 2006-03-22 16:05:50 +00:00
parent d1020db182
commit e273633713
3 changed files with 74 additions and 10 deletions
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48
ase/awk/run.c
View File

@ -1,5 +1,5 @@
/*
* $Id: run.c,v 1.12 2006-03-15 15:34:59 bacon Exp $
* $Id: run.c,v 1.13 2006-03-22 16:05:49 bacon Exp $
*/
#include <xp/awk/awk.h>
@ -19,6 +19,9 @@ static xp_awk_val_t* __eval_expression (xp_awk_t* awk, xp_awk_nde_t* nde);
static xp_awk_val_t* __eval_assignment (xp_awk_t* awk, xp_awk_nde_ass_t* nde);
static xp_awk_val_t* __eval_binary (xp_awk_t* awk, xp_awk_nde_exp_t* nde);
static void __refup (xp_awk_val_t* val);
static void __refdown (xp_awk_val_t* val);
int __printval (xp_awk_pair_t* pair)
{
xp_printf (XP_TEXT("%s = "), (const xp_char_t*)pair->key);
@ -137,7 +140,7 @@ static int __run_if_statement (xp_awk_t* awk, xp_awk_nde_if_t* nde)
n = __run_statement (awk, nde->else_part);
}
//TODO: how should i destroy test?
xp_awk_freeval (test); // TODO: is this correct?
return n;
}
@ -156,6 +159,8 @@ static xp_awk_val_t* __eval_expression (xp_awk_t* awk, xp_awk_nde_t* nde)
break;
case XP_AWK_NDE_EXP_UNR:
// TODO: .......................
break;
case XP_AWK_NDE_STR:
val = xp_awk_makestrval(
@ -251,6 +256,7 @@ static xp_awk_val_t* __eval_assignment (xp_awk_t* awk, xp_awk_nde_ass_t* nde)
return XP_NULL;
}
__refup (new);
v = new;
}
else if (tgt->type == XP_AWK_NDE_GLOBAL)
@ -287,7 +293,7 @@ static xp_awk_val_t* __eval_assignment (xp_awk_t* awk, xp_awk_nde_ass_t* nde)
static xp_awk_val_t* __eval_binary (xp_awk_t* awk, xp_awk_nde_exp_t* nde)
{
xp_awk_val_t* left, * right;
xp_awk_val_t* left, * right, * res;
xp_assert (nde->type == XP_AWK_NDE_EXP_BIN);
@ -301,17 +307,47 @@ static xp_awk_val_t* __eval_binary (xp_awk_t* awk, xp_awk_nde_exp_t* nde)
return XP_NULL;
}
res = XP_NULL;
// TODO: a lot of things to do....
if (nde->opcode == XP_AWK_BINOP_PLUS)
{
if (left->type == XP_AWK_VAL_INT &&
right->type == XP_AWK_VAL_INT)
{
((xp_awk_val_int_t*)left)->val +=
((xp_awk_val_int_t*)right)->val;
xp_long_t r =
((xp_awk_val_int_t*)left)->val +
((xp_awk_val_int_t*)right)->val;
res = xp_awk_makeintval (r);
}
}
else if (nde->opcode == XP_AWK_BINOP_MINUS)
{
if (left->type == XP_AWK_VAL_INT &&
right->type == XP_AWK_VAL_INT)
{
xp_long_t r =
((xp_awk_val_int_t*)left)->val -
((xp_awk_val_int_t*)right)->val;
res = xp_awk_makeintval (r);
}
}
xp_awk_freeval(left);
xp_awk_freeval(right);
return left;
return res;
}
static void __refup (xp_awk_val_t* val)
{
val->ref++;
}
static void __refdown (xp_awk_val_t* val)
{
xp_assert (val->ref > 0);
val->ref--;
if (val->ref <= 0) xp_awk_freeval(val);
}

31
ase/awk/val.c
View File

@ -1,5 +1,5 @@
/*
* $Id: val.c,v 1.6 2006-03-15 15:34:59 bacon Exp $
* $Id: val.c,v 1.7 2006-03-22 16:05:50 bacon Exp $
*/
#include <xp/awk/awk.h>
@ -9,13 +9,34 @@
#include <xp/bas/memory.h>
#endif
static xp_awk_val_nil_t __awk_nil = { XP_AWK_VAL_NIL };
static xp_awk_val_nil_t __awk_nil = { XP_AWK_VAL_NIL, 0 };
xp_awk_val_t* xp_awk_val_nil = (xp_awk_val_t*)&__awk_nil;
static xp_awk_val_int_t __awk_int[] =
{
{ XP_AWK_VAL_INT, 0, -1 },
{ XP_AWK_VAL_INT, 0, 0 },
{ XP_AWK_VAL_INT, 0, 1 },
{ XP_AWK_VAL_INT, 0, 2 },
{ XP_AWK_VAL_INT, 0, 3 },
{ XP_AWK_VAL_INT, 0, 4 },
{ XP_AWK_VAL_INT, 0, 5 },
{ XP_AWK_VAL_INT, 0, 6 },
{ XP_AWK_VAL_INT, 0, 7 },
{ XP_AWK_VAL_INT, 0, 8 },
{ XP_AWK_VAL_INT, 0, 9 },
};
xp_awk_val_t* xp_awk_makeintval (xp_long_t v)
{
xp_awk_val_int_t* val;
if (v >= __awk_int[0].val &&
v <= __awk_int[xp_countof(__awk_int)-1].val)
{
return (xp_awk_val_t*)&__awk_int[v-__awk_int[0].val];
}
val = (xp_awk_val_int_t*)xp_malloc(xp_sizeof(xp_awk_val_int_t));
if (val == XP_NULL) return XP_NULL;
@ -58,6 +79,10 @@ xp_awk_val_t* xp_awk_makestrval (const xp_char_t* str, xp_size_t len)
void xp_awk_freeval (xp_awk_val_t* val)
{
if (val == xp_awk_val_nil) return;
if (val >= (xp_awk_val_t*)&__awk_int[0] &&
val <= (xp_awk_val_t*)&__awk_int[xp_countof(__awk_int)-1]) return;
switch (val->type)
{
case XP_AWK_VAL_STR:
@ -105,6 +130,8 @@ xp_bool_t xp_awk_isvaltrue (xp_awk_val_t* val)
return (((xp_awk_val_str_t*)val)->len == 0)? xp_false: xp_true;
}
/* this should never happen */
return xp_false;
}
void xp_awk_printval (xp_awk_val_t* val)

5
ase/awk/val.h
View File

@ -1,5 +1,5 @@
/*
* $Id: val.h,v 1.5 2006-03-15 15:34:59 bacon Exp $
* $Id: val.h,v 1.6 2006-03-22 16:05:50 bacon Exp $
*/
#ifndef _XP_AWK_VAL_H_
@ -24,7 +24,8 @@ typedef struct xp_awk_val_real_t xp_awk_val_real_t;
typedef struct xp_awk_val_str_t xp_awk_val_str_t;
#define XP_AWK_VAL_HDR \
int type
int type: 2; \
int ref: 30
struct xp_awk_val_t
{