antlr3-current (3) - Linux Manuals

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NAME

ANTLR3_INT_TRIE_struct -

Structure that defines an ANTLR3_INT_TRIE.

SYNOPSIS

Data Fields

ANTLR3_BOOLEAN(* add )(struct ANTLR3_INT_TRIE_struct *trie, ANTLR3_INTKEY key, ANTLR3_UINT32 type, ANTLR3_INTKEY intVal, void *data, void(ANTLR3_CDECL *freeptr)(void *))

ANTLR3_BOOLEAN allowDups

ANTLR3_UINT32 count

pANTLR3_INT_TRIE_NODE current

ANTLR3_BOOLEAN(* del )(struct ANTLR3_INT_TRIE_struct *trie, ANTLR3_INTKEY key)

void(* free )(struct ANTLR3_INT_TRIE_struct *trie)

pANTLR3_TRIE_ENTRY(* get )(struct ANTLR3_INT_TRIE_struct *trie, ANTLR3_INTKEY key)

pANTLR3_INT_TRIE_NODE root

Detailed Description

Structure that defines an ANTLR3_INT_TRIE.

For this particular implementation, as you might expect, the key is turned into a 'string' by looking at bit(key, depth) of the integer key. Using 64 bit keys gives us a depth limit of 64 (or bit 0..63) and potentially a huge trie. This is the algorithm for a Patricia Trie. Note also that this trie [can] accept multiple entries for the same key and is therefore a kind of elastic bucket patricia trie.

If you find this code useful, please feel free to 'steal' it for any purpose as covered by the BSD license under which ANTLR is issued. You can cut the code but as the ANTLR library is only about 50K (Windows Vista), you might find it easier to just link the library. Please keep all comments and licenses and so on in any version of this you create of course.

Jim Idle.

Field Documentation

ANTLR3_BOOLEAN(* ANTLR3_INT_TRIE_struct::add)(struct ANTLR3_INT_TRIE_struct trie, ANTLR3_INTKEY key, ANTLR3_UINT32 type, ANTLR3_INTKEY intVal, void data, void(ANTLR3_CDECL freeptr)(void ))

Referenced by antlr3IntTrieNew(), getRuleMemoization(), and memoize().

ANTLR3_BOOLEAN ANTLR3_INT_TRIE_struct::allowDups

Referenced by intTrieAdd().

ANTLR3_UINT32 ANTLR3_INT_TRIE_struct::count

Referenced by antlr3IntTrieNew(), intTrieAdd(), and intTrieGet().

pANTLR3_INT_TRIE_NODE ANTLR3_INT_TRIE_struct::current

ANTLR3_BOOLEAN(* ANTLR3_INT_TRIE_struct::del)(struct ANTLR3_INT_TRIE_struct *trie, ANTLR3_INTKEY key)

Referenced by antlr3IntTrieNew().

void(* ANTLR3_INT_TRIE_struct::free)(struct ANTLR3_INT_TRIE_struct *trie)

Referenced by antlr3IntTrieNew(), freeBR(), and reset().

pANTLR3_TRIE_ENTRY(* ANTLR3_INT_TRIE_struct::get)(struct ANTLR3_INT_TRIE_struct *trie, ANTLR3_INTKEY key)