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hyung-hwan
2006-04-17 16:12:02 +00:00
parent 9434e96a90
commit 761af88ace
5 changed files with 182 additions and 114 deletions
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67
ase/awk/awk.h
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@ -1,5 +1,5 @@
/*
* $Id: awk.h,v 1.50 2006-04-16 13:30:18 bacon Exp $
* $Id: awk.h,v 1.51 2006-04-17 16:12:02 bacon Exp $
*/
#ifndef _XP_AWK_AWK_H_
@ -41,46 +41,47 @@ enum
/* error code */
enum
{
XP_AWK_ENOERR, /* no error */
XP_AWK_ENOMEM, /* out of memory */
XP_AWK_ENOERR, /* no error */
XP_AWK_ENOMEM, /* out of memory */
XP_AWK_ESRCOP,
XP_AWK_ESRCCL,
XP_AWK_ESRCDT, /* error in reading source */
XP_AWK_ESRCDT, /* error in reading source */
XP_AWK_ELXCHR, /* lexer came accross an wrong character */
XP_AWK_ELXUNG, /* lexer failed to unget a character */
XP_AWK_ELXCHR, /* lexer came accross an wrong character */
XP_AWK_ELXUNG, /* lexer failed to unget a character */
XP_AWK_EENDSRC, /* unexpected end of source */
XP_AWK_EENDSTR, /* unexpected end of a string */
XP_AWK_ELBRACE, /* left brace expected */
XP_AWK_ELPAREN, /* left parenthesis expected */
XP_AWK_ERPAREN, /* right parenthesis expected */
XP_AWK_ERBRACK, /* right bracket expected */
XP_AWK_ECOMMA, /* comma expected */
XP_AWK_ESEMICOLON, /* semicolon expected */
XP_AWK_ECOLON, /* colon expected */
XP_AWK_EEXPRESSION, /* expression expected */
XP_AWK_EENDSRC, /* unexpected end of source */
XP_AWK_EENDSTR, /* unexpected end of a string */
XP_AWK_ELBRACE, /* left brace expected */
XP_AWK_ELPAREN, /* left parenthesis expected */
XP_AWK_ERPAREN, /* right parenthesis expected */
XP_AWK_ERBRACK, /* right bracket expected */
XP_AWK_ECOMMA, /* comma expected */
XP_AWK_ESEMICOLON, /* semicolon expected */
XP_AWK_ECOLON, /* colon expected */
XP_AWK_EEXPRESSION, /* expression expected */
XP_AWK_EWHILE, /* keyword 'while' is expected */
XP_AWK_EASSIGNMENT, /* assignment statement expected */
XP_AWK_EIDENT, /* identifier expected */
XP_AWK_EDUPBEGIN, /* duplicate BEGIN */
XP_AWK_EDUPEND, /* duplicate END */
XP_AWK_EDUPFUNC, /* duplicate function name */
XP_AWK_EDUPPARAM, /* duplicate parameter name */
XP_AWK_EDUPVAR, /* duplicate variable name */
XP_AWK_EDUPNAME, /* duplicate name - function, variable, etc */
XP_AWK_EUNDEF, /* undefined identifier */
XP_AWK_ELVALUE, /* l-value required */
XP_AWK_EWHILE, /* keyword 'while' is expected */
XP_AWK_EASSIGNMENT, /* assignment statement expected */
XP_AWK_EIDENT, /* identifier expected */
XP_AWK_EDUPBEGIN, /* duplicate BEGIN */
XP_AWK_EDUPEND, /* duplicate END */
XP_AWK_EDUPFUNC, /* duplicate function name */
XP_AWK_EDUPPARAM, /* duplicate parameter name */
XP_AWK_EDUPVAR, /* duplicate variable name */
XP_AWK_EDUPNAME, /* duplicate name - function, variable, etc */
XP_AWK_EUNDEF, /* undefined identifier */
XP_AWK_ELVALUE, /* l-value required */
/* run time error */
XP_AWK_EDIVBYZERO, /* divide by zero */
XP_AWK_EOPERAND, /* invalid operand */
XP_AWK_ENOSUCHFUNC, /* no such function */
XP_AWK_ENOTINDEXABLE, /* not indexable value */
XP_AWK_EINDEX, /* wrong index */
XP_AWK_EINTERNAL /* internal error */
XP_AWK_EDIVBYZERO, /* divide by zero */
XP_AWK_EOPERAND, /* invalid operand */
XP_AWK_ENOSUCHFUNC, /* no such function */
XP_AWK_ENOTASSIGNABLE, /* not indexable value */
XP_AWK_ENOTINDEXABLE, /* not indexable value */
XP_AWK_EINDEX, /* wrong index */
XP_AWK_EINTERNAL /* internal error */
};
#ifdef __cplusplus

3
ase/awk/err.c
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@ -1,5 +1,5 @@
/*
* $Id: err.c,v 1.10 2006-04-16 13:30:19 bacon Exp $
* $Id: err.c,v 1.11 2006-04-17 16:12:02 bacon Exp $
*/
#include <xp/awk/awk_i.h>
@ -47,6 +47,7 @@ const xp_char_t* xp_awk_geterrstr (xp_awk_t* awk)
XP_TEXT("divide by zero"),
XP_TEXT("invalid operand"),
XP_TEXT("no such function"),
XP_TEXT("value not assignable"),
XP_TEXT("value not indexable"),
XP_TEXT("wrong index value"),

144
ase/awk/run.c
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@ -1,5 +1,5 @@
/*
* $Id: run.c,v 1.53 2006-04-16 16:30:59 bacon Exp $
* $Id: run.c,v 1.54 2006-04-17 16:12:02 bacon Exp $
*/
#include <xp/awk/awk_i.h>
@ -48,6 +48,8 @@ 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_t* nde);
static xp_awk_val_t* __do_assignment (
xp_awk_t* awk, xp_awk_nde_var_t* var, xp_awk_val_t* val);
static xp_awk_val_t* __do_assignment_globalidx (
xp_awk_t* awk, xp_awk_nde_var_t* var, xp_awk_val_t* val);
static xp_awk_val_t* __eval_binary (xp_awk_t* awk, xp_awk_nde_t* nde);
static xp_awk_val_t* __eval_binop_lor (
@ -749,11 +751,11 @@ static xp_awk_val_t* __eval_assignment (xp_awk_t* awk, xp_awk_nde_t* nde)
static xp_awk_val_t* __do_assignment (
xp_awk_t* awk, xp_awk_nde_var_t* var, xp_awk_val_t* val)
{
if (val->type == XP_AWK_VAL_MAP)
{
/* TODO */
/* a map cannot be assigned to a variable */
PANIC (awk, XP_AWK_EMAPASS);
PANIC (awk, XP_AWK_ENOTASSIGNABLE);
}
if (var->type == XP_AWK_NDE_NAMED)
@ -811,62 +813,8 @@ static xp_awk_val_t* __do_assignment (
}
else if (var->type == XP_AWK_NDE_GLOBALIDX)
{
xp_awk_nde_var_t* tgt = (xp_awk_nde_var_t*)nde;
xp_awk_val_t* v = STACK_GLOBAL(awk,tgt->id.idxa);
xp_awk_val_t* idx, *res;
xp_char_t* str;
xp_awk_map_val_t* mv;
if (v->type != XP_AWK_VAL_NIL ||
v->type != XP_AWK_VAL_MAP) PANIC (awk, XP_AWK_ENOTINDEXABLE);
xp_assert (tgt->idx != XP_NULL);
idx = __eval_expression (awk, tgt->idx);
if (idx == XP_NULL) return XP_NULL;
xp_awk_refupval (idx);
str = __val_to_str (idx);
if (str == XP_NULL)
{
/* TODO: how to tell memory error from conversion error? */
xp_awk_refdownval (awk, idx);
/*PANIC (awk, XP_AWK_ENOMEM);*/
PANIC (awk, XP_AWK_EINDEX);
}
if (v->type == XP_AWK_VAL_NIL)
{
mv = xp_awk_makemap_val (awk);
if (mv == XP_NULL)
{
xp_free (str);
xp_awk_refdownval (awk, idx);
PANIC (awk, XP_AWK_ENOMEM);
}
xp_awk_refdownval (awk, v);
STACK_GLOBAL(awk,var->id.idxa) = mv;
xp_awk_refupval (awk, mv);
}
else
{
mv = STACK_GLOBAL(awk,var->id.idxa);
}
// TODO: refdown old val....
if (xp_awk_map_put(awk, str, val) == XP_NULL)
{
// TODO:............
xp_free (str);
xp_awk_refdownval (awk, idx);
PANIC (awk, XP_AWK_ENOMEM);
}
xp_free (str);
xp_awk_refdownval (awk, idx);
xp_awk_refupval (val);
if (__do_assignment_globalidx(awk,var,val) == XP_NULL)
return XP_NULL;
}
else if (var->type == XP_AWK_NDE_LOCALIDX)
{
@ -885,6 +833,84 @@ static xp_awk_val_t* __do_assignment (
return val;
}
static xp_awk_val_t* __do_assignment_globalidx (
xp_awk_t* awk, xp_awk_nde_var_t* var, xp_awk_val_t* val)
{
xp_awk_val_map_t* map;
xp_awk_nde_t* nde;
xp_char_t* str;
xp_awk_pair_t* pair;
xp_assert (var->type == XP_AWK_NDE_GLOBALIDX && var->idx != XP_NULL);
map = (xp_awk_val_map_t*)STACK_GLOBAL(awk,var->id.idxa);
if (map->type == XP_AWK_VAL_NIL)
{
/* the map is not initialized yet */
xp_awk_val_t* tmp;
tmp = xp_awk_makemapval (awk);
if (tmp == XP_NULL) PANIC (awk, XP_AWK_ENOMEM);
xp_awk_refdownval (awk, (xp_awk_val_t*)map);
STACK_GLOBAL(awk,var->id.idxa) = tmp;
xp_awk_refupval (tmp);
map = (xp_awk_val_map_t*) tmp;
}
else if (map->type != XP_AWK_VAL_MAP)
{
PANIC (awk, XP_AWK_ENOTINDEXABLE);
}
/* compose a map index */
nde = var->idx;
/* TODO: while (nde != XP_NULL) */
{
xp_awk_val_t* tmp;
tmp = __eval_expression (awk, nde);
if (tmp == XP_NULL)
{
/* TODO: clearing previous idx values... */
return XP_NULL;
}
xp_awk_refupval (tmp);
str = __val_to_str (tmp);
if (str == XP_NULL)
{
/* TODO: how to tell memory from conversion error? */
xp_awk_refdownval (awk, tmp);
/*PANIC (awk, XP_AWK_ENOMEM);*/
PANIC (awk, XP_AWK_EINDEX);
}
xp_awk_refdownval (awk, tmp);
/* TODO: nde = nde->next; */
}
xp_printf (XP_TEXT("**** index str=>%s, map->ref=%d, map->type=%d\n"), str, map->ref, map->type);
pair = xp_awk_map_get (map->map, str);
if (xp_awk_map_put(map->map, str, val) == XP_NULL)
{
xp_free (str);
PANIC (awk, XP_AWK_ENOMEM);
}
xp_free (str);
if (pair != XP_NULL)
{
/* decrease the reference count for the old value
* only when the assignment is successful */
xp_awk_refdownval (awk, pair->val);
}
xp_awk_refupval (val);
return val;
}
static xp_awk_val_t* __eval_binary (xp_awk_t* awk, xp_awk_nde_t* nde)
{
static binop_func_t __binop_func[] =

69
ase/awk/val.c
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@ -1,5 +1,5 @@
/*
* $Id: val.c,v 1.19 2006-04-16 04:31:38 bacon Exp $
* $Id: val.c,v 1.20 2006-04-17 16:12:02 bacon Exp $
*/
#include <xp/awk/awk_i.h>
@ -89,7 +89,8 @@ xp_awk_val_t* xp_awk_makestrval (const xp_char_t* str, xp_size_t len)
val->ref = 0;
val->len = len;
val->buf = xp_strxdup (str, len);
if (val->buf == XP_NULL) {
if (val->buf == XP_NULL)
{
xp_free (val);
return XP_NULL;
}
@ -110,7 +111,32 @@ xp_awk_val_t* xp_awk_makestrval2 (
val->ref = 0;
val->len = len1 + len2;
val->buf = xp_strxdup2 (str1, len1, str2, len2);
if (val->buf == XP_NULL) {
if (val->buf == XP_NULL)
{
xp_free (val);
return XP_NULL;
}
return (xp_awk_val_t*)val;
}
static void __free_map_val (xp_awk_t* awk, void* v)
{
xp_awk_refdownval (awk, v);
}
xp_awk_val_t* xp_awk_makemapval (xp_awk_t* awk)
{
xp_awk_val_map_t* val;
val = (xp_awk_val_map_t*)xp_malloc(xp_sizeof(xp_awk_val_map_t));
if (val == XP_NULL) return XP_NULL;
val->type = XP_AWK_VAL_MAP;
val->ref = 0;
val->map = xp_awk_map_open (XP_NULL, awk, 256, __free_map_val);
if (val->map == XP_NULL)
{
xp_free (val);
return XP_NULL;
}
@ -133,7 +159,7 @@ void xp_awk_freeval (xp_awk_t* awk, xp_awk_val_t* val)
{
case XP_AWK_VAL_NIL:
xp_free (val);
break;
return;
case XP_AWK_VAL_INT:
if (awk->run.icache_count < xp_countof(awk->run.icache))
@ -141,11 +167,8 @@ void xp_awk_freeval (xp_awk_t* awk, xp_awk_val_t* val)
awk->run.icache[awk->run.icache_count++] =
(xp_awk_val_int_t*)val;
}
else
{
xp_free (val);
}
break;
else xp_free (val);
return;
case XP_AWK_VAL_REAL:
if (awk->run.rcache_count < xp_countof(awk->run.rcache))
@ -153,19 +176,21 @@ void xp_awk_freeval (xp_awk_t* awk, xp_awk_val_t* val)
awk->run.rcache[awk->run.rcache_count++] =
(xp_awk_val_real_t*)val;
}
else
{
xp_free (val);
}
break;
else xp_free (val);
return;
case XP_AWK_VAL_STR:
xp_free (((xp_awk_val_str_t*)val)->buf);
xp_free (val);
break;
return;
case XP_AWK_VAL_MAP:
xp_awk_map_close (((xp_awk_val_map_t*)val)->map);
xp_free (val);
return;
}
/* should never reach here */
xp_assert (!"should never happen - invalid value type");
}
void xp_awk_refupval (xp_awk_val_t* val)
@ -227,8 +252,12 @@ xp_awk_val_t* xp_awk_cloneval (xp_awk_t* awk, xp_awk_val_t* val)
return xp_awk_makestrval (
((xp_awk_val_str_t*)val)->buf,
((xp_awk_val_str_t*)val)->len);
case XP_AWK_VAL_MAP:
/* TODO: .... */
return XP_NULL;
}
xp_assert (!"should never happen - invalid value type");
return XP_NULL;
}
@ -246,9 +275,11 @@ xp_bool_t xp_awk_boolval (xp_awk_val_t* val)
return ((xp_awk_val_real_t*)val)->val != 0.0;
case XP_AWK_VAL_STR:
return ((xp_awk_val_str_t*)val)->len > 0;
case XP_AWK_VAL_MAP:
return xp_false; /* TODO: is this correct? */
}
xp_assert (!"should never happen - invalid vlaue type");
xp_assert (!"should never happen - invalid value type");
return xp_false;
}
@ -286,6 +317,10 @@ void xp_awk_printval (xp_awk_val_t* val)
xp_printf (XP_TEXT("%s"), ((xp_awk_val_str_t*)val)->buf);
break;
case XP_AWK_VAL_MAP:
xp_printf (XP_TEXT("***MAP***"));
break;
default:
xp_assert (!"should never happen - invalid value type");
xp_printf (XP_TEXT("**** INTERNAL ERROR - INVALID VALUE TYPE ****\n"));

13
ase/awk/val.h
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@ -1,5 +1,5 @@
/*
* $Id: val.h,v 1.16 2006-04-16 16:30:59 bacon Exp $
* $Id: val.h,v 1.17 2006-04-17 16:12:02 bacon Exp $
*/
#ifndef _XP_AWK_VAL_H_
@ -26,8 +26,13 @@ typedef struct xp_awk_val_str_t xp_awk_val_str_t;
typedef struct xp_awk_val_map_t xp_awk_val_map_t;
#define XP_AWK_VAL_HDR \
int type: 3; \
int ref: 29
unsigned int type: 3; \
unsigned int ref: 28
/*
#define XP_AWK_VAL_HDR \
int type: 4; \
int ref: 27
*/
struct xp_awk_val_t
{
@ -81,7 +86,7 @@ xp_awk_val_t* xp_awk_makestrval (const xp_char_t* str, xp_size_t len);
xp_awk_val_t* xp_awk_makestrval2 (
const xp_char_t* str1, xp_size_t len1,
const xp_char_t* str2, xp_size_t len2);
/*xp_awk_val_t* xp_awk_makemapval ();*/
xp_awk_val_t* xp_awk_makemapval (xp_awk_t* awk);
xp_bool_t xp_awk_isbuiltinval (xp_awk_val_t* val);
void xp_awk_freeval (xp_awk_t* awk, xp_awk_val_t* val);