fixed bugs in lda and changed awk for lda over tab.

- added ase_lda_rwalk
 - fixed crash when the keeper is not set
 - modified the awk parser to utilize lda.

ase/include/ase/cmn/lda.h

@@ -19,8 +19,16 @@
  ******
  */
 
-typedef struct ase_lda_t ase_lda_t;
+enum ase_lda_walk_t
+{
+	ASE_LDA_WALK_STOP     = 0,
+	ASE_LDA_WALK_FORWARD  = 1,
+	ASE_LDA_WALK_BACKWARD = 2
+};
+
+typedef struct ase_lda_t      ase_lda_t;
 typedef struct ase_lda_node_t ase_lda_node_t;
+typedef enum   ase_lda_walk_t ase_lda_walk_t;
 
 #define ASE_LDA_COPIER_SIMPLE  ase_lda_copysimple
 #define ASE_LDA_COPIER_INLINE  ase_lda_copyinline
@@ -143,6 +151,11 @@ typedef ase_size_t (*ase_lda_sizer_t) (
 );
 /******/
 
+typedef ase_lda_walk_t (*ase_lda_walker_t) (
+        ase_lda_t*      lda   /* a linear dynamic array */,
+	ase_size_t      index /* the index to the visited node */,
+        void*           arg   /* user-defined data */
+);
 
 /****s* ase.cmn.lda/ase_lda_t
  * NAME
@@ -336,6 +349,15 @@ void ase_lda_setfreeer (
 );
 /******/
 
+ase_lda_keeper_t ase_lda_getkeeper (
+        ase_lda_t* lda
+);
+
+void ase_lda_setkeeper (
+        ase_lda_t* lda,
+        ase_lda_keeper_t keeper 
+);
+
 ase_lda_sizer_t ase_lda_getsizer (
         ase_lda_t* lda
 );
@@ -435,6 +457,19 @@ void ase_lda_clear (
 	ase_lda_t* lda
 );
 
+void ase_lda_walk (
+	ase_lda_t*       lda,
+	ase_lda_walker_t walker,
+	void*            arg
+);
+
+void ase_lda_rwalk (
+	ase_lda_t*       lda,
+	ase_lda_walker_t walker,
+	void*            arg
+);
+
+
 void* ase_lda_copysimple (
 	ase_lda_t* lda   /* a linear dynamic array */,
 	void*      data  /* the pointer to data */,

ase/include/ase/cmn/sll.h

@@ -26,9 +26,9 @@ enum ase_sll_walk_t
 };
 /******/
 
-typedef struct ase_sll_t ase_sll_t;
+typedef struct ase_sll_t      ase_sll_t;
 typedef struct ase_sll_node_t ase_sll_node_t;
-typedef enum ase_sll_walk_t ase_sll_walk_t;
+typedef enum   ase_sll_walk_t ase_sll_walk_t;
 
 /****b* ase.cmn.sll/ase_sll_copier_t
  * NAME

ase/lib/awk/parse.c

@@ -1,5 +1,5 @@
 /*
- * $Id: parse.c 415 2008-10-10 11:16:31Z baconevi $
+ * $Id: parse.c 416 2008-10-11 14:10:25Z baconevi $
  *
  * {License}
  */
@@ -1421,79 +1421,77 @@ static void adjust_static_globals (ase_awk_t* awk)
 	}
 }
 
+typedef struct check_global_t check_global_t;
+
+struct check_global_t
+{
+	ase_cstr_t name;
+	ase_size_t index;
+	ase_lda_walk_t walk;
+};
+
+static ase_lda_walk_t check_global (ase_lda_t* lda, ase_size_t index, void* arg)
+{
+	ase_cstr_t tmp;
+	ase_awk_t* awk = *(ase_awk_t**)ASE_LDA_EXTENSION(lda);
+	check_global_t* cg = (check_global_t*)arg;
+
+	tmp.ptr = ASE_LDA_DPTR(lda,index);
+	tmp.len = ASE_LDA_DLEN(lda,index);
+
+	if (index < awk->tree.nbglobals)
+	{
+		ase_map_pair_t* pair;
+
+		pair = ase_map_search (awk->wtab, tmp.ptr, tmp.len);
+		if (pair != ASE_NULL)
+		{
+			tmp.ptr = ((ase_cstr_t*)(pair->vptr))->ptr;
+			tmp.len = ((ase_cstr_t*)(pair->vptr))->len;
+		}
+	}
+
+	if (ase_strxncmp(tmp.ptr, tmp.len, cg->name.ptr, cg->name.len) == 0) 
+	{
+		cg->index = index;
+		return ASE_LDA_WALK_STOP;
+	}
+
+	return cg->walk;
+}
+
 static ase_size_t get_global (
 	ase_awk_t* awk, const ase_char_t* name, ase_size_t len)
 {
-	ase_size_t i;
+	check_global_t cg;
+
+	cg.name.ptr = name;
+	cg.name.len = len;
+	cg.index = ASE_LDA_INVALID;
+	cg.walk = ASE_LDA_WALK_BACKWARD;
 
 	/* return ase_lda_rsearch (
 		awk->parse.globals, ASE_LDA_SIZE(awk->parse.globals),
 		name, len); */
 
-	if (ASE_LDA_SIZE(awk->parse.globals) > 0)
+	ase_lda_rwalk (awk->parse.globals, check_global, &cg);
-	{
+	return cg.index;
-		for (i = ASE_LDA_SIZE(awk->parse.globals); i-- > 0; ) 
-		{
-			if (ASE_LDA_NODE(awk->parse.globals,i))
-			{
-				ase_cstr_t tmp;
-
-				tmp.ptr = ASE_LDA_DPTR(awk->parse.globals,i);
-				tmp.len = ASE_LDA_DLEN(awk->parse.globals,i);
-
-				if (i < awk->tree.nbglobals)
-				{
-					ase_map_pair_t* pair;
-
-					pair = ase_map_search (awk->wtab, tmp.ptr, tmp.len);
-					if (pair != ASE_NULL)
-					{
-						tmp.ptr = ((ase_cstr_t*)(pair->vptr))->ptr;
-						tmp.len = ((ase_cstr_t*)(pair->vptr))->len;
-					}
-				}
-
-				if (ase_strxncmp(tmp.ptr, tmp.len, name, len) == 0) return i;
-			}
-		}
-	}
-
-	return ASE_LDA_INVALID;
 }
 
 static ase_size_t find_global (
 	ase_awk_t* awk, const ase_char_t* name, ase_size_t len)
 {
-	ase_size_t i;
+	check_global_t cg;
+
+	cg.name.ptr = name;
+	cg.name.len = len;
+	cg.index = ASE_LDA_INVALID;
+	cg.walk = ASE_LDA_WALK_FORWARD;
 
 	/* return ase_lda_search (awk->parse.globals, 0, name, len); */
 
-	for (i = 0; i < ASE_LDA_SIZE(awk->parse.globals); i++) 
+	ase_lda_walk (awk->parse.globals, check_global, &cg);
-	{
+	return cg.index;
-		if (ASE_LDA_NODE(awk->parse.globals,i))
-		{
-			ase_cstr_t tmp;
-
-			tmp.ptr = ASE_LDA_DPTR(awk->parse.globals,i);
-			tmp.len = ASE_LDA_DLEN(awk->parse.globals,i);
-
-			if (i < awk->tree.nbglobals)
-			{
-				ase_map_pair_t* pair;
-
-				pair = ase_map_search (awk->wtab, tmp.ptr, tmp.len);
-				if (pair != ASE_NULL)
-				{
-					tmp.ptr = ((ase_cstr_t*)(pair->vptr))->ptr;
-					tmp.len = ((ase_cstr_t*)(pair->vptr))->len;
-				}
-			}
-
-			if (ase_strxncmp(tmp.ptr, tmp.len, name, len) == 0) return i;
-		}
-	}
-
-	return ASE_LDA_INVALID;
 }
 
 static int add_global (

ase/lib/cmn/lda.c

@@ -13,6 +13,7 @@
 #define freeer_t ase_lda_freeer_t
 #define comper_t ase_lda_comper_t
 #define sizer_t  ase_lda_sizer_t
+#define keeper_t ase_lda_keeper_t
 #define walker_t ase_lda_walker_t
 
 #define mmgr_t   ase_mmgr_t
@@ -195,6 +196,16 @@ void ase_lda_setcomper (lda_t* lda, comper_t comper)
 	lda->comper = comper;
 }
 
+keeper_t ase_lda_getkeeper (lda_t* lda)
+{
+        return lda->keeper;
+}
+
+void ase_lda_setkeeper (lda_t* lda, keeper_t keeper)
+{
+        lda->keeper = keeper;
+}
+
 sizer_t ase_lda_getsizer (lda_t* lda)
 {
         return lda->sizer;
@@ -353,7 +364,7 @@ size_t ase_lda_insert (lda_t* lda, size_t pos, void* dptr, size_t dlen)
 		}
 	}
 
-	if (pos >= lda->capa) 
+	if (pos >= lda->capa || lda->size >= lda->capa) 
 	{
 		/* the buffer is not still enough after resizing */
 		if (lda->freeer) 
@@ -395,7 +406,7 @@ size_t ase_lda_update (lda_t* lda, size_t pos, void* dptr, size_t dlen)
 		if (dptr == DPTR(c) && dlen == DLEN(c))
 		{
 			/* updated to the same data */
-			lda->keeper (lda, dptr, dlen);	
+			if (lda->keeper) lda->keeper (lda, dptr, dlen);	
 		}
 		else
 		{
@@ -492,6 +503,59 @@ void ase_lda_clear (lda_t* lda)
 	lda->size = 0;
 }
 
+void ase_lda_walk (lda_t* lda, walker_t walker, void* arg)
+{
+	ase_lda_walk_t w = ASE_LDA_WALK_FORWARD;
+	size_t i = 0;
+
+	while (1)	
+	{
+		if (lda->node[i] != ASE_NULL) 
+                	w = walker (lda, i, arg);
+
+		if (w == ASE_LDA_WALK_STOP) return;
+
+		if (w == ASE_LDA_WALK_FORWARD) 
+		{
+			i++;
+			if (i >= lda->size) return;
+		}
+		if (w == ASE_LDA_WALK_BACKWARD) 
+		{
+			if (i <= 0) return;
+			i--;
+		}
+	}
+}
+
+void ase_lda_rwalk (lda_t* lda, walker_t walker, void* arg)
+{
+	ase_lda_walk_t w = ASE_LDA_WALK_BACKWARD;
+	size_t i;
+
+	if (lda->size <= 0) return;
+	i = lda->size - 1;
+
+	while (1)	
+	{
+		if (lda->node[i] != ASE_NULL) 
+                	w = walker (lda, i, arg);
+
+		if (w == ASE_LDA_WALK_STOP) return;
+
+		if (w == ASE_LDA_WALK_FORWARD) 
+		{
+			i++;
+			if (i >= lda->size) return;
+		}
+		if (w == ASE_LDA_WALK_BACKWARD) 
+		{
+			if (i <= 0) return;
+			i--;
+		}
+	}
+}
+
 void* ase_lda_copysimple (lda_t* lda, void* dptr, size_t dlen)
 {
 	return dptr;