dawgdic-0.4.5/0000775000175000017500000000000012051035236010122 500000000000000dawgdic-0.4.5/test/0000775000175000017500000000000012051035236011101 500000000000000dawgdic-0.4.5/test/ranked-completer-test.sh0000775000175000017500000000151712025007164015575 00000000000000#! /bin/sh build_bin="${TOP_BUILDDIR:-..}/src/dawgdic-build" find_bin="${TOP_BUILDDIR:-..}/src/dawgdic-find" test_dir="${TOP_SRCDIR:-..}/test" if [ ! -f "$build_bin" ] then echo "error: $build_bin: not found" exit 1 fi if [ ! -f "$find_bin" ] then echo "error: $build_bin: not found" exit 1 fi ## Builds a dictionary from a lexicon. $build_bin -rt "${test_dir}/lexicon" lexicon.dic if [ $? -ne 0 ] then exit 1 fi ## Finds prefix keys from a lexicon. $find_bin -r lexicon.dic < "${test_dir}/query" > ranked-completer-result if [ $? -ne 0 ] then exit 1 fi ## Checks the result. cmp ranked-completer-result "${test_dir}/ranked-completer-answer" if [ $? -ne 0 ] then exit 1 fi ## Removes temporary files. rm -f lexicon.dic ranked-completer-result ## Tests the ranked completer for random keys and values. ./ranked-completer-test dawgdic-0.4.5/test/dawg-builder-test.cc0000664000175000017500000000160312025015161014647 00000000000000#include #include #include #include #include int main() { dawgdic::DawgBuilder dawg_builder; assert(dawg_builder.Insert("apple")); assert(dawg_builder.Insert("cherry")); assert(!dawg_builder.Insert("banana")); assert(dawg_builder.Insert("durian")); assert(!dawg_builder.Insert("green\0apple", 11, 0)); assert(dawg_builder.Insert("green\0apple")); assert(dawg_builder.Insert("mandarin orange", 8, 0)); assert(dawg_builder.Insert("mandarin")); dawgdic::Dawg dawg; dawg_builder.Finish(&dawg); dawgdic::Dictionary dawg_dic; dawgdic::DictionaryBuilder::Build(dawg, &dawg_dic); assert(dawg_dic.Contains("apple")); assert(dawg_dic.Contains("cherry")); assert(dawg_dic.Contains("durian")); assert(dawg_dic.Contains("green")); assert(dawg_dic.Contains("mandarin")); return 0; } dawgdic-0.4.5/test/completer-test.sh0000775000175000017500000000134012025007141014320 00000000000000#! /bin/sh build_bin="${TOP_BUILDDIR:-..}/src/dawgdic-build" find_bin="${TOP_BUILDDIR:-..}/src/dawgdic-find" test_dir="${TOP_SRCDIR:-..}/test" if [ ! -f "$build_bin" ] then echo "error: $build_bin: not found" exit 1 fi if [ ! -f "$find_bin" ] then echo "error: $build_bin: not found" exit 1 fi ## Builds a dictionary from a lexicon. $build_bin -gt "${test_dir}/lexicon" lexicon.dic if [ $? -ne 0 ] then exit 1 fi ## Finds prefix keys from a lexicon. $find_bin -g lexicon.dic < "${test_dir}/query" > completer-result if [ $? -ne 0 ] then exit 1 fi ## Checks the result. cmp completer-result "${test_dir}/completer-answer" if [ $? -ne 0 ] then exit 1 fi ## Removes temporary files. rm -f lexicon.dic completer-result dawgdic-0.4.5/test/dawg-builder-test.sh0000775000175000017500000000032212051034102014667 00000000000000#! /bin/sh build_bin="${TOP_BUILDDIR:-..}/src/dawgdic-build" find_bin="${TOP_BUILDDIR:-..}/src/dawgdic-find" test_dir="${TOP_SRCDIR:-..}/test" "${test_dir}/dawg-builder-test" if [ $? -ne 0 ] then exit 1 fi dawgdic-0.4.5/test/lexicon0000644000175000017500000000014611572057677012430 00000000000000a 1 an 0 and 2 appear 1 apple 1 bin 2 binary 1 bind 0 binder 2 binding 1 blind 0 can 0 cancer 1 cat 2 dawgdic-0.4.5/test/Makefile.in0000664000175000017500000004062712051034110013065 00000000000000# Makefile.in generated by automake 1.11.3 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software # Foundation, Inc. # This Makefile.in is free software; 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an: a = 1; an = 0; and: a = 1; an = 0; and = 2; appear: a = 1; appear = 1; apple: a = 1; apple = 1; bin: bin = 2; binary: bin = 2; binary = 1; bind: bin = 2; bind = 0; binder: bin = 2; bind = 0; binder = 2; binding: bin = 2; bind = 0; binding = 1; blind: blind = 0; can: can = 0; cancer: can = 0; cancer = 1; cat: cat = 2; dawgdic-0.4.5/test/ranked-completer-test.cc0000644000175000017500000001133111734455553015555 00000000000000#include #include #include #include #include #include #include #include #include #include #include namespace { static const std::size_t NUM_KEYS = 1 << 16; static const std::size_t KEY_LENGTH = 6; static const int MAX_VALUE = 100; class Comparer { public: explicit Comparer(const std::vector &values) : values_(&values) {} bool operator()(const dawgdic::ValueType &lhs, const dawgdic::ValueType &rhs) const { return (*values_)[lhs] < (*values_)[rhs]; } private: const std::vector *values_; }; void GenerateRandomKeys(std::size_t num_keys, std::size_t length, std::vector *keys) { std::vector key(length); keys->resize(num_keys); for (std::size_t key_id = 0; key_id < num_keys; ++key_id) { for (std::size_t i = 0; i < length; ++i) { key[i] = 'A' + (std::rand() % ('Z' - 'A' + 1)); } (*keys)[key_id].assign(&key[0], length); } // Sorts keys, and then removes repeated keys. std::sort(keys->begin(), keys->end()); std::vector::iterator unique_keys_end = std::unique(keys->begin(), keys->end()); keys->erase(unique_keys_end, keys->end()); } void GenerateRandomValues(std::size_t num_values, std::vector *values) { values->resize(num_values); for (std::size_t i = 0; i < num_values; ++i) { (*values)[i] = std::rand() % MAX_VALUE; } } bool BuildDictionary(const std::vector &keys, const std::vector &values, dawgdic::Dictionary *dic, dawgdic::RankedGuide *guide) { dawgdic::DawgBuilder builder; for (std::size_t i = 0; i < keys.size(); ++i) { if (!builder.Insert(keys[i].c_str(), static_cast(i))) { std::cerr << "error: failed to insert key: " << keys[i] << std::endl; return false; } } dawgdic::Dawg dawg; if (!builder.Finish(&dawg)) { std::cerr << "error: failed to finish building Dawg" << std::endl; return false; } if (!dawgdic::DictionaryBuilder::Build(dawg, dic)) { std::cerr << "error: failed to build Dictionary" << std::endl; return false; } if (!dawgdic::RankedGuideBuilder::Build(dawg, *dic, guide, Comparer(values))) { std::cerr << "error: failed to build RankedGuide" << std::endl; return false; } return true; } bool TestDictionary(const dawgdic::Dictionary &dic, const std::vector &keys) { for (std::size_t i = 0; i < keys.size(); ++i) { dawgdic::ValueType value; if (!dic.Find(keys[i].c_str(), &value)) { std::cerr << "error: failed to find key: " << keys[i] << std::endl; return false; } else if (value != static_cast(i)) { std::cerr << "error: wrong value: " << value << '/' << i << std::endl; return false; } } return true; } bool TestCompleter(const dawgdic::Dictionary &dic, const dawgdic::RankedGuide &guide, const std::vector &keys, const std::vector &values) { dawgdic::RankedCompleterBase completer(dic, guide, Comparer(values)); for (char first_label = 'A'; first_label <= 'Z'; ++first_label) { dawgdic::BaseType index = dic.root(); if (!dic.Follow(first_label, &index)) { continue; } int prev_value = MAX_VALUE; completer.Start(index, &first_label, 1); while (completer.Next()) { int value = values[completer.value()]; if (value > prev_value) { std::cerr << "error: invalid value order: " << value << " -> " << prev_value << std::endl; return false; } prev_value = value; // std::cout << completer.key() << ": " << value << std::endl; } } return true; } } // namespace int main() { // Initializes random number generator's seed. std::srand(std::time(NULL)); std::vector keys; GenerateRandomKeys(NUM_KEYS, KEY_LENGTH, &keys); std::cerr << "no. unique keys: " << keys.size() << std::endl; std::vector values; GenerateRandomValues(keys.size(), &values); // for (std::size_t i = 0; i < keys.size(); ++i) // std::cout << i << ": " << keys[i] << ": " << values[i] << std::endl; dawgdic::Dictionary dic; dawgdic::RankedGuide guide; if (!BuildDictionary(keys, values, &dic, &guide)) { return 2; } if (!TestDictionary(dic, keys)) { return 3; } if (!TestCompleter(dic, guide, keys, values)) { return 4; } return 0; } dawgdic-0.4.5/src/0000775000175000017500000000000012051035236010711 500000000000000dawgdic-0.4.5/src/dawgdic/0000775000175000017500000000000012051035236012313 500000000000000dawgdic-0.4.5/src/dawgdic/bit-pool.h0000644000175000017500000000306511734533677014156 00000000000000#ifndef DAWGDIC_BIT_POOL_H #define DAWGDIC_BIT_POOL_H #include "object-pool.h" namespace dawgdic { // This class works as an array of bit flags with compact memory management. template class BitPool { public: BitPool() : pool_(), size_(0) {} // Accessors. void set(SizeType index, bool bit) { SizeType pool_index = PoolIndex(index); UCharType bit_flag = BitFlag(index); if (bit) { pool_[pool_index] |= bit_flag; } else { pool_[pool_index] &= ~bit_flag; } } bool get(SizeType index) const { SizeType pool_index = PoolIndex(index); UCharType bit_flag = BitFlag(index); return (pool_[pool_index] & bit_flag) ? true : false; } // Deletes all bits and frees memory. void Clear() { pool_.Clear(); size_ = 0; } // Swaps bit pools. void Swap(BitPool *bit_pool) { pool_.Swap(&bit_pool->pool_); } // Allocates memory for a new bit and returns its ID. // Note: Allocated bits are filled with false. SizeType Allocate() { SizeType pool_index = PoolIndex(size_); if (pool_index == pool_.size()) { pool_.Allocate(); pool_[pool_index] = '\0'; } return size_++; } private: ObjectPool pool_; SizeType size_; // Disallows copies. BitPool(const BitPool &); BitPool &operator=(const BitPool &); static SizeType PoolIndex(SizeType index) { return index / 8; } static UCharType BitFlag(BaseType index) { return static_cast(1) << (index % 8); } }; } // namespace dawgdic #endif // DAWGDIC_BIT_POOL_H dawgdic-0.4.5/src/dawgdic/guide-unit.h0000644000175000017500000000104211734534062014461 00000000000000#ifndef DAWGDIC_GUIDE_UNIT_H #define DAWGDIC_GUIDE_UNIT_H #include "base-types.h" namespace dawgdic { class GuideUnit { public: GuideUnit() : child_('\0'), sibling_('\0') {} void set_child(UCharType child) { child_ = child; } void set_sibling(UCharType sibling) { sibling_ = sibling; } UCharType child() const { return child_; } UCharType sibling() const { return sibling_; } private: UCharType child_; UCharType sibling_; // Copyable. }; } // namespace dawgdic #endif // DAWGDIC_GUIDE_UNIT_H dawgdic-0.4.5/src/dawgdic/dictionary.h0000644000175000017500000001320311734534151014555 00000000000000#ifndef DAWGDIC_DICTIONARY_H #define DAWGDIC_DICTIONARY_H #include #include #include "base-types.h" #include "dictionary-unit.h" namespace dawgdic { // Dictionary class for retrieval and binary I/O. class Dictionary { public: Dictionary() : units_(NULL), size_(0), units_buf_() {} const DictionaryUnit *units() const { return units_; } SizeType size() const { return size_; } SizeType total_size() const { return sizeof(DictionaryUnit) * size_; } SizeType file_size() const { return sizeof(BaseType) + total_size(); } // Root index. BaseType root() const { return 0; } // Checks if a given index is related to the end of a key. bool has_value(BaseType index) const { return units_[index].has_leaf(); } // Gets a value from a given index. ValueType value(BaseType index) const { return units_[index ^ units_[index].offset()].value(); } // Reads a dictionary from an input stream. bool Read(std::istream *input) { BaseType base_size; if (!input->read(reinterpret_cast(&base_size), sizeof(BaseType))) { return false; } SizeType size = static_cast(base_size); std::vector units_buf(size); if (!input->read(reinterpret_cast(&units_buf[0]), sizeof(DictionaryUnit) * size)) { return false; } SwapUnitsBuf(&units_buf); return true; } // Writes a dictionry to an output stream. bool Write(std::ostream *output) const { BaseType base_size = static_cast(size_); if (!output->write(reinterpret_cast(&base_size), sizeof(BaseType))) { return false; } if (!output->write(reinterpret_cast(units_), sizeof(DictionaryUnit) * size_)) { return false; } return true; } // Exact matching. bool Contains(const CharType *key) const { BaseType index = root(); if (!Follow(key, &index)) { return false; } return has_value(index); } bool Contains(const CharType *key, SizeType length) const { BaseType index = root(); if (!Follow(key, length, &index)) { return false; } return has_value(index); } // Exact matching. ValueType Find(const CharType *key) const { BaseType index = root(); if (!Follow(key, &index)) { return -1; } return has_value(index) ? value(index) : -1; } ValueType Find(const CharType *key, SizeType length) const { BaseType index = root(); if (!Follow(key, length, &index)) { return -1; } return has_value(index) ? value(index) : -1; } bool Find(const CharType *key, ValueType *value) const { BaseType index = root(); if (!Follow(key, &index) || !has_value(index)) { return false; } *value = this->value(index); return true; } bool Find(const CharType *key, SizeType length, ValueType *value) const { BaseType index = root(); if (!Follow(key, length, &index) || !has_value(index)) { return false; } *value = this->value(index); return true; } // Follows a transition. bool Follow(CharType label, BaseType *index) const { BaseType next_index = *index ^ units_[*index].offset() ^ static_cast(label); if (units_[next_index].label() != static_cast(label)) { return false; } *index = next_index; return true; } // Follows transitions. bool Follow(const CharType *s, BaseType *index) const { while (*s != '\0' && Follow(*s, index)) { ++s; } return *s == '\0'; } bool Follow(const CharType *s, BaseType *index, SizeType *count) const { while (*s != '\0' && Follow(*s, index)) { ++s, ++*count; } return *s == '\0'; } // Follows transitions. bool Follow(const CharType *s, SizeType length, BaseType *index) const { for (SizeType i = 0; i < length; ++i) { if (!Follow(s[i], index)) { return false; } } return true; } bool Follow(const CharType *s, SizeType length, BaseType *index, SizeType *count) const { for (SizeType i = 0; i < length; ++i, ++*count) { if (!Follow(s[i], index)) { return false; } } return true; } // Maps memory with its size. void Map(const void *address) { Clear(); units_ = reinterpret_cast( static_cast(address) + 1); size_ = *static_cast(address); } void Map(const void *address, SizeType size) { Clear(); units_ = static_cast(address); size_ = size; } // Initializes a dictionary. void Clear() { units_ = NULL; size_ = 0; std::vector(0).swap(units_buf_); } // Swaps dictionaries. void Swap(Dictionary *dic) { std::swap(units_, dic->units_); std::swap(size_, dic->size_); units_buf_.swap(dic->units_buf_); } // Shrinks a vector. void Shrink() { if (units_buf_.size() == units_buf_.capacity()) { return; } std::vector units_buf(units_buf_); SwapUnitsBuf(&units_buf); } public: // Following member function is called from DawgBuilder. // Swaps buffers for units. void SwapUnitsBuf(std::vector *units_buf) { units_ = &(*units_buf)[0]; size_ = static_cast(units_buf->size()); units_buf_.swap(*units_buf); } private: const DictionaryUnit *units_; SizeType size_; std::vector units_buf_; // Disallows copies. Dictionary(const Dictionary &); Dictionary &operator=(const Dictionary &); }; } // namespace dawgdic #endif // DAWGDIC_DICTIONARY_H dawgdic-0.4.5/src/dawgdic/object-pool.h0000644000175000017500000000276111734534255014641 00000000000000#ifndef DAWGDIC_OBJECT_POOL_H #define DAWGDIC_OBJECT_POOL_H #include #include "base-types.h" namespace dawgdic { // This class works like an array of objects with compact memory management. template class ObjectPool { public: typedef OBJECT_TYPE ObjectType; ObjectPool() : blocks_(), size_(0) {} ~ObjectPool() { Clear(); } // Accessors. ObjectType &operator[](SizeType index) { return blocks_[index / BLOCK_SIZE][index % BLOCK_SIZE]; } const ObjectType &operator[](SizeType index) const { return blocks_[index / BLOCK_SIZE][index % BLOCK_SIZE]; } // Number of allocated objects. SizeType size() const { return size_; } // Deletes all objects and frees memory. void Clear() { for (SizeType i = 0; i < blocks_.size(); ++i) { delete [] blocks_[i]; } std::vector(0).swap(blocks_); size_ = 0; } // Swaps object pools. void Swap(ObjectPool *pool) { blocks_.swap(pool->blocks_); std::swap(size_, pool->size_); } // Allocates memory for a new object and returns its ID. SizeType Allocate() { if (size_ == BLOCK_SIZE * blocks_.size()) { blocks_.push_back(new ObjectType[BLOCK_SIZE]); } return size_++; } private: std::vector blocks_; SizeType size_; // Disallows copies. ObjectPool(const ObjectPool &); ObjectPool &operator=(const ObjectPool &); }; } // namespace dawgdic #endif // DAWGDIC_OBJECT_POOL_H dawgdic-0.4.5/src/dawgdic/dawg-unit.h0000644000175000017500000000307711734533722014322 00000000000000#ifndef DAWGDIC_DAWG_UNIT_H #define DAWGDIC_DAWG_UNIT_H #include "base-types.h" namespace dawgdic { // Unit for building a dawg. class DawgUnit { public: DawgUnit() : child_(0), sibling_(0), label_('\0'), is_state_(false), has_sibling_(false) {} // Writes values. void set_child(BaseType child) { child_ = child; } void set_sibling(BaseType sibling) { sibling_ = sibling; } void set_value(ValueType value) { child_ = value; } void set_label(UCharType label) { label_ = label; } void set_is_state(bool is_state) { is_state_ = is_state; } void set_has_sibling(bool has_sibling) { has_sibling_ = has_sibling; } // Reads values. BaseType child() const { return child_; } BaseType sibling() const { return sibling_; } ValueType value() const { return static_cast(child_); } UCharType label() const { return label_; } bool is_state() const { return is_state_; } bool has_sibling() const { return has_sibling_; } // Calculates a base value of a unit. BaseType base() const { if (label_ == '\0') { return (child_ << 1) | (has_sibling_ ? 1 : 0); } return (child_ << 2) | (is_state_ ? 2 : 0) | (has_sibling_ ? 1 : 0); } // Initializes a unit. void Clear() { child_ = 0; sibling_ = 0; label_ = '\0'; is_state_ = false; has_sibling_ = false; } private: BaseType child_; BaseType sibling_; UCharType label_; bool is_state_; bool has_sibling_; // Copyable. }; } // namespace dawgdic #endif // DAWGDIC_DAWG_UNIT_H dawgdic-0.4.5/src/dawgdic/base-unit.h0000644000175000017500000000130411734532404014275 00000000000000#ifndef DAWGDIC_BASE_UNIT_H #define DAWGDIC_BASE_UNIT_H #include "base-types.h" namespace dawgdic { // Unit for building a dawg. class BaseUnit { public: BaseUnit() : base_(0) {} // Writes values. void set_base(BaseType base) { base_ = base; } BaseType base() const { return base_; } // Reads values. BaseType child() const { return base_ >> 2; } bool has_sibling() const { return (base_ & 1) ? true : false; } ValueType value() const { return static_cast(base_ >> 1); } bool is_state() const { return (base_ & 2) ? true : false; } private: BaseType base_; // Copyable. }; } // namespace dawgdic #endif // DAWGDIC_BASE_UNIT_H dawgdic-0.4.5/src/dawgdic/base-types.h0000644000175000017500000000062311572057677014503 00000000000000#ifndef DAWGDIC_BASE_TYPES_H #define DAWGDIC_BASE_TYPES_H #include namespace dawgdic { // 8-bit characters. typedef char CharType; typedef unsigned char UCharType; // 32-bit integer. typedef int ValueType; // 32-bit unsigned integer. typedef unsigned int BaseType; // 32 or 64-bit unsigned integer. typedef std::size_t SizeType; } // namespace dawgdic #endif // DAWGDIC_BASE_TYPES_H dawgdic-0.4.5/src/dawgdic/ranked-guide.h0000644000175000017500000000567312022315215014750 00000000000000#ifndef DAWGDIC_RANKED_GUIDE_H #define DAWGDIC_RANKED_GUIDE_H #include "dictionary.h" #include "ranked-guide-unit.h" #include #include namespace dawgdic { class RankedGuide { public: RankedGuide() : units_(NULL), size_(0), units_buf_() {} const RankedGuideUnit *units() const { return units_; } SizeType size() const { return size_; } SizeType total_size() const { return sizeof(RankedGuideUnit) * size_; } SizeType file_size() const { return sizeof(BaseType) + total_size(); } // The root index. BaseType root() const { return 0; } UCharType child(BaseType index) const { return units_[index].child(); } UCharType sibling(BaseType index) const { return units_[index].sibling(); } // Reads a dictionary from an input stream. bool Read(std::istream *input) { BaseType base_size; if (!input->read(reinterpret_cast(&base_size), sizeof(BaseType))) { return false; } SizeType size = static_cast(base_size); std::vector units_buf(size); if (!input->read(reinterpret_cast(&units_buf[0]), sizeof(RankedGuideUnit) * size)) { return false; } SwapUnitsBuf(&units_buf); return true; } // Writes a dictionry to an output stream. bool Write(std::ostream *output) const { BaseType base_size = static_cast(size_); if (!output->write(reinterpret_cast(&base_size), sizeof(BaseType))) { return false; } if (!output->write(reinterpret_cast(units_), sizeof(RankedGuideUnit) * size_)) { return false; } return true; } // Maps memory with its size. void Map(const void *address) { Clear(); units_ = reinterpret_cast( static_cast(address) + 1); size_ = *static_cast(address); } void Map(const void *address, SizeType size) { Clear(); units_ = static_cast(address); size_ = size; } // Swaps RankedGuides. void Swap(RankedGuide *guide) { std::swap(units_, guide->units_); std::swap(size_, guide->size_); units_buf_.swap(guide->units_buf_); } // Initializes a RankedGuide. void Clear() { units_ = NULL; size_ = 0; std::vector(0).swap(units_buf_); } public: // Following member function is called from DawgBuilder. // Swaps buffers for units. void SwapUnitsBuf(std::vector *units_buf) { units_ = &(*units_buf)[0]; size_ = static_cast(units_buf->size()); units_buf_.swap(*units_buf); } private: const RankedGuideUnit *units_; SizeType size_; std::vector units_buf_; // Disables copies. RankedGuide(const RankedGuide &); RankedGuide &operator=(const RankedGuide &); }; } // namespace dawgdic #endif // DAWGDIC_RANKED_GUIDE_H dawgdic-0.4.5/src/dawgdic/ranked-completer-node.h0000644000175000017500000000222111734534676016601 00000000000000#ifndef DAWGDIC_RANKED_COMPLETER_NODE_H #define DAWGDIC_RANKED_COMPLETER_NODE_H #include "base-types.h" namespace dawgdic { class RankedCompleterNode { public: RankedCompleterNode() : dic_index_(0), prev_node_index_(0), label_('\0'), is_queued_(false), has_terminal_(false) {} void set_dic_index(BaseType dic_index) { dic_index_ = dic_index; } void set_prev_node_index(BaseType prev_node_index) { prev_node_index_ = prev_node_index; } void set_label(UCharType label) { label_ = label; } void set_is_queued() { is_queued_ = true; } void set_has_terminal(bool has_terminal) { has_terminal_ = has_terminal; } BaseType dic_index() const { return dic_index_; } BaseType prev_node_index() const { return prev_node_index_; } UCharType label() const { return label_; } bool is_queued() const { return is_queued_; } bool has_terminal() const { return has_terminal_; } private: BaseType dic_index_; BaseType prev_node_index_; UCharType label_; bool is_queued_; bool has_terminal_; // Copyable. }; } // namespace dawgdic #endif // DAWGDIC_RANKED_COMPLETER_NODE_H dawgdic-0.4.5/src/dawgdic/guide-builder.h0000644000175000017500000000501412032162613015122 00000000000000#ifndef DAWGDIC_GUIDE_BUILDER_H #define DAWGDIC_GUIDE_BUILDER_H #include "guide.h" #include "dawg.h" #include "dictionary.h" #include namespace dawgdic { class GuideBuilder { public: // Builds a dictionary for completing keys. static bool Build(const Dawg &dawg, const Dictionary &dic, Guide *guide) { GuideBuilder builder(dawg, dic, guide); return builder.BuildGuide(); } private: const Dawg &dawg_; const Dictionary &dic_; Guide *guide_; std::vector units_; std::vector is_fixed_table_; // Disallows copies. GuideBuilder(const GuideBuilder &); GuideBuilder &operator=(const GuideBuilder &); GuideBuilder(const Dawg &dawg, const Dictionary &dic, Guide *guide) : dawg_(dawg), dic_(dic), guide_(guide), units_(), is_fixed_table_() {} bool BuildGuide() { // Initializes units and flags. units_.resize(dic_.size()); is_fixed_table_.resize(dic_.size() / 8, '\0'); if (dawg_.size() <= 1) { return true; } if (!BuildGuide(dawg_.root(), dic_.root())) { return false; } guide_->SwapUnitsBuf(&units_); return true; } // Builds a guide recursively. bool BuildGuide(BaseType dawg_index, BaseType dic_index) { if (is_fixed(dic_index)) { return true; } set_is_fixed(dic_index); // Finds the first non-terminal child. BaseType dawg_child_index = dawg_.child(dawg_index); if (dawg_.label(dawg_child_index) == '\0') { dawg_child_index = dawg_.sibling(dawg_child_index); if (dawg_child_index == 0) { return true; } } units_[dic_index].set_child(dawg_.label(dawg_child_index)); do { UCharType child_label = dawg_.label(dawg_child_index); BaseType dic_child_index = dic_index; if (!dic_.Follow(child_label, &dic_child_index)) { return false; } if (!BuildGuide(dawg_child_index, dic_child_index)) { return false; } BaseType dawg_sibling_index = dawg_.sibling(dawg_child_index); UCharType sibling_label = dawg_.label(dawg_sibling_index); if (dawg_sibling_index != 0) { units_[dic_child_index].set_sibling(sibling_label); } dawg_child_index = dawg_sibling_index; } while (dawg_child_index != 0); return true; } void set_is_fixed(BaseType index) { is_fixed_table_[index / 8] |= 1 << (index % 8); } bool is_fixed(BaseType index) const { return (is_fixed_table_[index / 8] & (1 << (index % 8))) != 0; } }; } // namespace dawgdic #endif // DAWGDIC_GUIDE_BUILDER_H dawgdic-0.4.5/src/dawgdic/dawg.h0000644000175000017500000000700011734533714013334 00000000000000#ifndef DAWGDIC_DAWG_H #define DAWGDIC_DAWG_H #include "base-unit.h" #include "bit-pool.h" #include "object-pool.h" namespace dawgdic { class Dawg { public: Dawg() : base_pool_(), label_pool_(), flag_pool_(), num_of_states_(0), num_of_merged_transitions_(0), num_of_merged_states_(0), num_of_merging_states_(0) {} // The root index. BaseType root() const { return 0; } // Number of units. SizeType size() const { return base_pool_.size(); } // Number of transitions. SizeType num_of_transitions() const { return base_pool_.size() - 1; } // Number of states. SizeType num_of_states() const { return num_of_states_; } // Number of merged transitions. SizeType num_of_merged_transitions() const { return num_of_merged_transitions_; } // Number of merged states. SizeType num_of_merged_states() const { return num_of_merged_states_; } // Number of merging states. SizeType num_of_merging_states() const { return num_of_merging_states_; } // Reads values. BaseType child(BaseType index) const { return base_pool_[index].child(); } BaseType sibling(BaseType index) const { return base_pool_[index].has_sibling() ? (index + 1) : 0; } ValueType value(BaseType index) const { return base_pool_[index].value(); } bool is_leaf(BaseType index) const { return label(index) == '\0'; } UCharType label(BaseType index) const { return label_pool_[index]; } bool is_merging(BaseType index) const { return flag_pool_.get(index); } // Clears object pools. void Clear() { base_pool_.Clear(); label_pool_.Clear(); flag_pool_.Clear(); num_of_states_ = 0; num_of_merged_states_ = 0; } // Swaps dawgs. void Swap(Dawg *dawg) { base_pool_.Swap(&dawg->base_pool_); label_pool_.Swap(&dawg->label_pool_); flag_pool_.Swap(&dawg->flag_pool_); std::swap(num_of_states_, dawg->num_of_states_); std::swap(num_of_merged_transitions_, dawg->num_of_merged_transitions_); std::swap(num_of_merged_states_, dawg->num_of_merged_states_); std::swap(num_of_merging_states_, dawg->num_of_merging_states_); } public: // Following member functions are called from DawgBuilder. // Sets the number of states. void set_num_of_states(SizeType num_of_states) { num_of_states_ = num_of_states; } // Sets the number of merged transitions. void set_num_of_merged_transitions(SizeType num_of_merged_transitions) { num_of_merged_transitions_ = num_of_merged_transitions; } // Sets the number of merged states. void set_num_of_merged_states(SizeType num_of_merged_states) { num_of_merged_states_ = num_of_merged_states; } // Sets the number of merging states. void set_num_of_merging_states(SizeType num_of_merging_states) { num_of_merging_states_ = num_of_merging_states; } // Swaps base pools. void SwapBasePool(ObjectPool *base_pool) { base_pool_.Swap(base_pool); } // Swaps label pools. void SwapLabelPool(ObjectPool *label_pool) { label_pool_.Swap(label_pool); } // Swaps flag pools. void SwapFlagPool(BitPool<> *flag_pool) { flag_pool_.Swap(flag_pool); } private: ObjectPool base_pool_; ObjectPool label_pool_; BitPool<> flag_pool_; SizeType num_of_states_; SizeType num_of_merged_transitions_; SizeType num_of_merged_states_; SizeType num_of_merging_states_; // Disallows copies. Dawg(const Dawg &); Dawg &operator=(const Dawg &); }; } // namespace dawgdic #endif // DAWGDIC_DAWG_H dawgdic-0.4.5/src/dawgdic/completer.h0000644000175000017500000000673512032162650014407 00000000000000#ifndef DAWGDIC_COMPLETER_H #define DAWGDIC_COMPLETER_H #include "dictionary.h" #include "guide.h" #include namespace dawgdic { class Completer { public: Completer() : dic_(NULL), guide_(NULL), key_(), index_stack_(), last_index_(0) {} Completer(const Dictionary &dic, const Guide &guide) : dic_(&dic), guide_(&guide), key_(), index_stack_(), last_index_(0) {} void set_dic(const Dictionary &dic) { dic_ = &dic; } void set_guide(const Guide &guide) { guide_ = &guide; } const Dictionary &dic() const { return *dic_; } const Guide &guide() const { return *guide_; } // These member functions are available only when Next() returns true. const char *key() const { return reinterpret_cast(&key_[0]); } SizeType length() const { return key_.size() - 1; } ValueType value() const { return dic_->value(last_index_); } // Starts completing keys from given index and prefix. void Start(BaseType index, const char *prefix = "") { SizeType length = 0; for (const char *p = prefix; *p != '\0'; ++p) { ++length; } Start(index, prefix, length); } void Start(BaseType index, const char *prefix, SizeType length) { key_.resize(length + 1); for (SizeType i = 0; i < length; ++i) { key_[i] = prefix[i]; } key_[length] = '\0'; index_stack_.clear(); if (guide_->size() != 0) { index_stack_.push_back(index); last_index_ = dic_->root(); } } // Gets the next key. bool Next() { if (index_stack_.empty()) { return false; } BaseType index = index_stack_.back(); if (last_index_ != dic_->root()) { UCharType child_label = guide_->child(index); if (child_label != '\0') { // Follows a transition to the first child. if (!Follow(child_label, &index)) return false; } else { for ( ; ; ) { UCharType sibling_label = guide_->sibling(index); // Moves to the previous node. if (key_.size() > 1) { key_.resize(key_.size() - 1); key_.back() = '\0'; } index_stack_.resize(index_stack_.size() - 1); if (index_stack_.empty()) { return false; } index = index_stack_.back(); if (sibling_label != '\0') { // Follows a transition to the next sibling. if (!Follow(sibling_label, &index)) { return false; } break; } } } } // Finds a terminal. return FindTerminal(index); } private: const Dictionary *dic_; const Guide *guide_; std::vector key_; std::vector index_stack_; BaseType last_index_; // Disallows copies. Completer(const Completer &); Completer &operator=(const Completer &); // Follows a transition. bool Follow(UCharType label, BaseType *index) { if (!dic_->Follow(label, index)) { return false; } key_.back() = label; key_.push_back('\0'); index_stack_.push_back(*index); return true; } // Finds a terminal. bool FindTerminal(BaseType index) { while (!dic_->has_value(index)) { UCharType label = guide_->child(index); if (!dic_->Follow(label, &index)) { return false; } key_.back() = label; key_.push_back('\0'); index_stack_.push_back(index); } last_index_ = index; return true; } }; } // namespace dawgdic #endif // DAWGDIC_COMPLETER_H dawgdic-0.4.5/src/dawgdic/dictionary-unit.h0000644000175000017500000000352211734533667015550 00000000000000#ifndef DAWGDIC_DICTIONARY_UNIT_H #define DAWGDIC_DICTIONARY_UNIT_H #include "base-types.h" namespace dawgdic { // Unit of a dictionary. class DictionaryUnit { public: static const BaseType OFFSET_MAX = static_cast(1) << 21; static const BaseType IS_LEAF_BIT = static_cast(1) << 31; static const BaseType HAS_LEAF_BIT = static_cast(1) << 8; static const BaseType EXTENSION_BIT = static_cast(1) << 9; DictionaryUnit() : base_(0) {} // Sets a flag to show that a unit has a leaf as a child. void set_has_leaf() { base_ |= HAS_LEAF_BIT; } // Sets a value to a leaf unit. void set_value(ValueType value) { base_ = static_cast(value) | IS_LEAF_BIT; } // Sets a label to a non-leaf unit. void set_label(UCharType label) { base_ = (base_ & ~static_cast(0xFF)) | label; } // Sets an offset to a non-leaf unit. bool set_offset(BaseType offset) { if (offset >= (OFFSET_MAX << 8)) { return false; } base_ &= IS_LEAF_BIT | HAS_LEAF_BIT | 0xFF; if (offset < OFFSET_MAX) { base_ |= (offset << 10); } else { base_ |= (offset << 2) | EXTENSION_BIT; } return true; } // Checks if a unit has a leaf as a child or not. bool has_leaf() const { return (base_ & HAS_LEAF_BIT) ? true : false; } // Checks if a unit corresponds to a leaf or not. ValueType value() const { return static_cast(base_ & ~IS_LEAF_BIT); } // Reads a label with a leaf flag from a non-leaf unit. BaseType label() const { return base_ & (IS_LEAF_BIT | 0xFF); } // Reads an offset to child units from a non-leaf unit. BaseType offset() const { return (base_ >> 10) << ((base_ & EXTENSION_BIT) >> 6); } private: BaseType base_; // Copyable. }; } // namespace dawgdic #endif // DAWGDIC_DICTIONARY_UNIT_H dawgdic-0.4.5/src/dawgdic/dawg-builder.h0000644000175000017500000002564312025014541014757 00000000000000#ifndef DAWGDIC_DAWG_BUILDER_H #define DAWGDIC_DAWG_BUILDER_H #include #include #include #include "dawg.h" #include "dawg-unit.h" namespace dawgdic { // DAWG builder. class DawgBuilder { public: explicit DawgBuilder(SizeType initial_hash_table_size = DEFAULT_INITIAL_HASH_TABLE_SIZE) : initial_hash_table_size_(initial_hash_table_size), base_pool_(), label_pool_(), flag_pool_(), unit_pool_(), hash_table_(), unfixed_units_(), unused_units_(), num_of_states_(1), num_of_merged_transitions_(0), num_of_merging_states_(0) {} // Number of units. SizeType size() const { return base_pool_.size(); } // Number of transitions. SizeType num_of_transitions() const { return base_pool_.size() - 1; } // Number of states. SizeType num_of_states() const { return num_of_states_; } // Number of merged transitions. SizeType num_of_merged_transitions() const { return num_of_merged_transitions_; } // Number of merged states. SizeType num_of_merged_states() const { return num_of_transitions() + num_of_merged_transitions() + 1 - num_of_states(); } // Number of merging states. SizeType num_of_merging_states() const { return num_of_merging_states_; } // Initializes a builder. void Clear() { base_pool_.Clear(); label_pool_.Clear(); flag_pool_.Clear(); unit_pool_.Clear(); std::vector(0).swap(hash_table_); while (!unfixed_units_.empty()) { unfixed_units_.pop(); } while (!unused_units_.empty()) { unused_units_.pop(); } num_of_states_ = 1; num_of_merged_transitions_ = 0; num_of_merging_states_ = 0; } // Inserts a key. bool Insert(const CharType *key, ValueType value = 0) { if (key == NULL || *key == '\0' || value < 0) { return false; } SizeType length = 1; while (key[length]) { ++length; } return InsertKey(key, length, value); } // Inserts a key. bool Insert(const CharType *key, SizeType length, ValueType value) { if (key == NULL || length <= 0 || value < 0) { return false; } for (SizeType i = 0; i < length; ++i) { if (key[i] == '\0') { return false; } } return InsertKey(key, length, value); } // Finishes building a dawg. bool Finish(Dawg *dawg) { // Initializes a builder if not initialized. if (hash_table_.empty()) { Init(); } FixUnits(0); base_pool_[0].set_base(unit_pool_[0].base()); label_pool_[0] = unit_pool_[0].label(); dawg->set_num_of_states(num_of_states_); dawg->set_num_of_merged_transitions(num_of_merged_transitions_); dawg->set_num_of_merged_states(num_of_merged_states()); dawg->set_num_of_merging_states(num_of_merging_states_); dawg->SwapBasePool(&base_pool_); dawg->SwapLabelPool(&label_pool_); dawg->SwapFlagPool(&flag_pool_); Clear(); return true; } private: enum { DEFAULT_INITIAL_HASH_TABLE_SIZE = 1 << 8 }; const SizeType initial_hash_table_size_; ObjectPool base_pool_; ObjectPool label_pool_; BitPool<> flag_pool_; ObjectPool unit_pool_; std::vector hash_table_; std::stack unfixed_units_; std::stack unused_units_; SizeType num_of_states_; SizeType num_of_merged_transitions_; SizeType num_of_merging_states_; // Disallows copies. DawgBuilder(const DawgBuilder &); DawgBuilder &operator=(const DawgBuilder &); // Inserts a key. bool InsertKey(const CharType *key, SizeType length, ValueType value) { // Initializes a builder if not initialized. if (hash_table_.empty()) { Init(); } BaseType index = 0; SizeType key_pos = 0; // Finds a separate unit. for ( ; key_pos <= length; ++key_pos) { BaseType child_index = unit_pool_[index].child(); if (!child_index) { break; } UCharType key_label = static_cast( (key_pos < length) ? key[key_pos] : '\0'); UCharType unit_label = unit_pool_[child_index].label(); // Checks the order of keys. if (key_label < unit_label) { return false; } else if (key_label > unit_label) { unit_pool_[child_index].set_has_sibling(true); FixUnits(child_index); break; } index = child_index; } // Adds new units. for ( ; key_pos <= length; ++key_pos) { UCharType key_label = static_cast( (key_pos < length) ? key[key_pos] : '\0'); BaseType child_index = AllocateUnit(); if (!unit_pool_[index].child()) { unit_pool_[child_index].set_is_state(true); } unit_pool_[child_index].set_sibling(unit_pool_[index].child()); unit_pool_[child_index].set_label(key_label); unit_pool_[index].set_child(child_index); unfixed_units_.push(child_index); index = child_index; } unit_pool_[index].set_value(value); return true; } // Initializes an object. void Init() { hash_table_.resize(initial_hash_table_size_, 0); AllocateUnit(); AllocateTransition(); unit_pool_[0].set_label(0xFF); unfixed_units_.push(0); } // Fixes units corresponding to the last inserted key. // Also, some of units are merged into equivalent transitions. void FixUnits(BaseType index) { while (unfixed_units_.top() != index) { BaseType unfixed_index = unfixed_units_.top(); unfixed_units_.pop(); if (num_of_states_ >= hash_table_.size() - (hash_table_.size() >> 2)) { ExpandHashTable(); } BaseType num_of_siblings = 0; for (BaseType i = unfixed_index; i != 0; i = unit_pool_[i].sibling()) { ++num_of_siblings; } BaseType hash_id; BaseType matched_index = FindUnit(unfixed_index, &hash_id); if (matched_index != 0) { num_of_merged_transitions_ += num_of_siblings; // Records a merging state. if (flag_pool_.get(matched_index) == false) { ++num_of_merging_states_; flag_pool_.set(matched_index, true); } } else { // Fixes units into pairs of base values and labels. BaseType transition_index = 0; for (BaseType i = 0; i < num_of_siblings; ++i) { transition_index = AllocateTransition(); } for (BaseType i = unfixed_index; i != 0; i = unit_pool_[i].sibling()) { base_pool_[transition_index].set_base(unit_pool_[i].base()); label_pool_[transition_index] = unit_pool_[i].label(); --transition_index; } matched_index = transition_index + 1; hash_table_[hash_id] = matched_index; ++num_of_states_; } // Deletes fixed units. for (BaseType current = unfixed_index, next; current != 0; current = next) { next = unit_pool_[current].sibling(); FreeUnit(current); } unit_pool_[unfixed_units_.top()].set_child(matched_index); } unfixed_units_.pop(); } // Expands a hash table. void ExpandHashTable() { SizeType hash_table_size = hash_table_.size() << 1; std::vector(0).swap(hash_table_); hash_table_.resize(hash_table_size, 0); // Builds a new hash table. BaseType count = 0; for (SizeType i = 1; i < base_pool_.size(); ++i) { BaseType index = static_cast(i); if (label_pool_[index] == '\0' || base_pool_[index].is_state()) { BaseType hash_id; FindTransition(index, &hash_id); hash_table_[hash_id] = index; ++count; } } } // Finds a transition from a hash table. BaseType FindTransition(BaseType index, BaseType *hash_id) const { *hash_id = HashTransition(index) % hash_table_.size(); for ( ; ; *hash_id = (*hash_id + 1) % hash_table_.size()) { BaseType transition_id = hash_table_[*hash_id]; if (transition_id == 0) { break; } // There must not be the same base value. } return 0; } // Finds a unit from a hash table. BaseType FindUnit(BaseType unit_index, BaseType *hash_id) const { *hash_id = HashUnit(unit_index) % hash_table_.size(); for ( ; ; *hash_id = (*hash_id + 1) % hash_table_.size()) { BaseType transition_id = hash_table_[*hash_id]; if (transition_id == 0) { break; } if (AreEqual(unit_index, transition_id)) { return transition_id; } } return 0; } // Compares a unit and a transition. bool AreEqual(BaseType unit_index, BaseType transition_index) const { // Compares the numbers of transitions. for (BaseType i = unit_pool_[unit_index].sibling(); i != 0; i = unit_pool_[i].sibling()) { if (base_pool_[transition_index].has_sibling() == false) { return false; } ++transition_index; } if (base_pool_[transition_index].has_sibling() == true) { return false; } // Compares out-transitions. for (BaseType i = unit_index; i; i = unit_pool_[i].sibling(), --transition_index) { if (unit_pool_[i].base() != base_pool_[transition_index].base() || unit_pool_[i].label() != label_pool_[transition_index]) { return false; } } return true; } // Calculates a hash value from a transition. BaseType HashTransition(BaseType index) const { BaseType hash_value = 0; for ( ; index != 0; ++index) { BaseType base = base_pool_[index].base(); UCharType label = label_pool_[index]; hash_value ^= Hash((label << 24) ^ base); if (base_pool_[index].has_sibling() == false) { break; } } return hash_value; } // Calculates a hash value from a unit. BaseType HashUnit(BaseType index) const { BaseType hash_value = 0; for ( ; index != 0; index = unit_pool_[index].sibling()) { BaseType base = unit_pool_[index].base(); UCharType label = unit_pool_[index].label(); hash_value ^= Hash((label << 24) ^ base); } return hash_value; } // 32-bit mix function. // http://www.concentric.net/~Ttwang/tech/inthash.htm static BaseType Hash(BaseType key) { key = ~key + (key << 15); // key = (key << 15) - key - 1; key = key ^ (key >> 12); key = key + (key << 2); key = key ^ (key >> 4); key = key * 2057; // key = (key + (key << 3)) + (key << 11); key = key ^ (key >> 16); return key; } // Gets a transition from object pools. BaseType AllocateTransition() { flag_pool_.Allocate(); base_pool_.Allocate(); return static_cast(label_pool_.Allocate()); } // Gets a unit from an object pool. BaseType AllocateUnit() { BaseType index = 0; if (unused_units_.empty()) { index = static_cast(unit_pool_.Allocate()); } else { index = unused_units_.top(); unused_units_.pop(); } unit_pool_[index].Clear(); return index; } // Returns a unit to an object pool. void FreeUnit(BaseType index) { unused_units_.push(index); } }; } // namespace dawgdic #endif // DAWGDIC_DAWG_BUILDER_H dawgdic-0.4.5/src/dawgdic/ranked-completer.h0000644000175000017500000001452012032163431015636 00000000000000#ifndef DAWGDIC_RANKED_COMPLETER_H #define DAWGDIC_RANKED_COMPLETER_H #include "dictionary.h" #include "ranked-completer-candidate.h" #include "ranked-completer-node.h" #include "ranked-guide.h" #include #include #include #include namespace dawgdic { template > class RankedCompleterBase { public: typedef VALUE_COMPARER_TYPE ValueComparerType; explicit RankedCompleterBase( ValueComparerType value_comparer = ValueComparerType()) : dic_(NULL), guide_(NULL), key_(), prefix_length_(0), value_(-1), nodes_(), node_queue_(), candidate_queue_( RankedCompleterCandidate::MakeComparer(value_comparer)) {} RankedCompleterBase(const Dictionary &dic, const RankedGuide &guide, ValueComparerType value_comparer = ValueComparerType()) : dic_(&dic), guide_(&guide), key_(), prefix_length_(0), value_(-1), nodes_(), node_queue_(), candidate_queue_( RankedCompleterCandidate::MakeComparer(value_comparer)) {} void set_dic(const Dictionary &dic) { dic_ = &dic; } void set_guide(const RankedGuide &guide) { guide_ = &guide; } const Dictionary &dic() const { return *dic_; } const RankedGuide &guide() const { return *guide_; } // These member functions are available only when Next() returns true. const char *key() const { return reinterpret_cast(&key_[0]); } SizeType length() const { return key_.size() - 1; } ValueType value() const { return value_; } // Starts completing keys from given index and prefix. void Start(BaseType index, const char *prefix = "") { SizeType length = 0; for (const char *p = prefix; *p != '\0'; ++p) { ++length; } Start(index, prefix, length); } void Start(BaseType index, const char *prefix, SizeType length) { key_.resize(length); for (SizeType i = 0; i < length; ++i) { key_[i] = prefix[i]; } prefix_length_ = length; value_ = -1; nodes_.clear(); node_queue_.clear(); while (!candidate_queue_.empty()) { candidate_queue_.pop(); } if (guide_->size() != 0) { CreateNode(index, 0, 'X'); EnqueueNode(0); } } // Gets the next key. bool Next() { for (SizeType i = 0; i < node_queue_.size(); ++i) { BaseType node_index = node_queue_[i]; if (value_ != -1 && !FindSibling(&node_index)) { continue; } node_index = FindTerminal(node_index); EnqueueCandidate(node_index); } node_queue_.clear(); // Returns false if there is no candidate. if (candidate_queue_.empty()) { return false; } const RankedCompleterCandidate &candidate = candidate_queue_.top(); BaseType node_index = candidate.node_index(); EnqueueNode(node_index); node_index = nodes_[node_index].prev_node_index(); key_.resize(prefix_length_); while (node_index != 0) { key_.push_back(nodes_[node_index].label()); EnqueueNode(node_index); node_index = nodes_[node_index].prev_node_index(); } std::reverse(key_.begin() + prefix_length_, key_.end()); key_.push_back('\0'); value_ = candidate.value(); candidate_queue_.pop(); return true; } private: const Dictionary *dic_; const RankedGuide *guide_; std::vector key_; SizeType prefix_length_; ValueType value_; std::vector nodes_; std::vector node_queue_; std::priority_queue, RankedCompleterCandidate::Comparer > candidate_queue_; // Disallows copies. RankedCompleterBase(const RankedCompleterBase &); RankedCompleterBase &operator=(const RankedCompleterBase &); // Pushes a node to queue. void EnqueueNode(BaseType node_index) { if (nodes_[node_index].is_queued()) { return; } node_queue_.push_back(node_index); nodes_[node_index].set_is_queued(); } // Pushes a candidate to priority queue. void EnqueueCandidate(BaseType node_index) { RankedCompleterCandidate candidate; candidate.set_node_index(node_index); candidate.set_value( dic_->units()[nodes_[node_index].dic_index()].value()); candidate_queue_.push(candidate); } // Finds a sibling of a given node. bool FindSibling(BaseType *node_index) { BaseType prev_node_index = nodes_[*node_index].prev_node_index(); BaseType dic_index = nodes_[*node_index].dic_index(); UCharType sibling_label = guide_->sibling(dic_index); if (sibling_label == '\0') { if (!nodes_[prev_node_index].has_terminal()) { return false; } nodes_[prev_node_index].set_has_terminal(false); } // Follows a transition to sibling and creates a node for the sibling. BaseType dic_prev_index = nodes_[prev_node_index].dic_index(); dic_index = FollowWithoutCheck(dic_prev_index, sibling_label); *node_index = CreateNode(dic_index, prev_node_index, sibling_label); return true; } // Follows transitions and finds a terminal. BaseType FindTerminal(BaseType node_index) { while (nodes_[node_index].label() != '\0') { BaseType dic_index = nodes_[node_index].dic_index(); UCharType child_label = guide_->child(dic_index); if (child_label == '\0') { nodes_[node_index].set_has_terminal(false); } // Follows a transition to child and creates a node for the child. dic_index = FollowWithoutCheck(dic_index, child_label); node_index = CreateNode(dic_index, node_index, child_label); } return node_index; } // Follows a transition without any check. BaseType FollowWithoutCheck(BaseType index, UCharType label) const { return index ^ dic_->units()[index].offset() ^ label; } // Creates a node. BaseType CreateNode(BaseType dic_index, BaseType prev_node_index, UCharType label) { RankedCompleterNode node; node.set_dic_index(dic_index); node.set_prev_node_index(prev_node_index); node.set_label(label); if (node.label() != '\0') { node.set_has_terminal(dic_->has_value(node.dic_index())); } nodes_.push_back(node); return static_cast(nodes_.size() - 1); } }; typedef RankedCompleterBase<> RankedCompleter; } // namespace dawgdic #endif // DAWGDIC_RANKED_COMPLETER_H dawgdic-0.4.5/src/dawgdic/ranked-guide-unit.h0000644000175000017500000000110311734535340015721 00000000000000#ifndef DAWGDIC_RANKED_GUIDE_UNIT_H #define DAWGDIC_RANKED_GUIDE_UNIT_H #include "base-types.h" namespace dawgdic { class RankedGuideUnit { public: RankedGuideUnit() : child_('\0'), sibling_('\0') {} void set_child(UCharType child) { child_ = child; } void set_sibling(UCharType sibling) { sibling_ = sibling; } UCharType child() const { return child_; } UCharType sibling() const { return sibling_; } private: UCharType child_; UCharType sibling_; // Copyable. }; } // namespace dawgdic #endif // DAWGDIC_RANKED_GUIDE_UNIT_H dawgdic-0.4.5/src/dawgdic/ranked-guide-builder.h0000644000175000017500000001234311734535224016401 00000000000000#ifndef DAWGDIC_RANKED_GUIDE_BUILDER_H #define DAWGDIC_RANKED_GUIDE_BUILDER_H #include "dawg.h" #include "dictionary.h" #include "ranked-guide.h" #include "ranked-guide-link.h" #include #include #include namespace dawgdic { class RankedGuideBuilder { public: // Builds a dictionary for completing keys. static bool Build(const Dawg &dawg, const Dictionary &dic, RankedGuide *guide) { return Build(dawg, dic, guide, std::less()); } // Builds a dictionary for completing keys. template static bool Build(const Dawg &dawg, const Dictionary &dic, RankedGuide *guide, VALUE_COMPARER_TYPE value_comparer) { RankedGuideBuilder builder(dawg, dic, guide); return builder.BuildRankedGuide(value_comparer); } private: const Dawg &dawg_; const Dictionary &dic_; RankedGuide *guide_; std::vector units_; std::vector links_; std::vector is_fixed_table_; // Disallows copies. RankedGuideBuilder(const RankedGuideBuilder &); RankedGuideBuilder &operator=(const RankedGuideBuilder &); RankedGuideBuilder(const Dawg &dawg, const Dictionary &dic, RankedGuide *guide) : dawg_(dawg), dic_(dic), guide_(guide), units_(), links_(), is_fixed_table_() {} template bool BuildRankedGuide(VALUE_COMPARER_TYPE value_comparer) { // Initializes units and flags. units_.resize(dic_.size()); is_fixed_table_.resize(dic_.size() / 8, '\0'); if (dawg_.size() <= 1) { return true; } ValueType max_value = -1; if (!BuildRankedGuide(dawg_.root(), dic_.root(), &max_value, value_comparer)) { return false; } guide_->SwapUnitsBuf(&units_); return true; } // Builds a guide recursively. template bool BuildRankedGuide(BaseType dawg_index, BaseType dic_index, ValueType *max_value, VALUE_COMPARER_TYPE value_comparer) { if (is_fixed(dic_index)) { return FindMaxValue(dic_index, max_value); } set_is_fixed(dic_index); SizeType initial_num_links = links_.size(); // Enumerates links to the next states. if (!EnumerateLinks(dawg_index, dic_index, value_comparer)) { return false; } std::stable_sort(links_.begin() + initial_num_links, links_.end(), RankedGuideLink::MakeComparer(value_comparer)); // Reflects links into units. if (!TurnLinksToUnits(dic_index, initial_num_links)) { return false; } *max_value = links_[initial_num_links].value(); links_.resize(initial_num_links); return true; } // Finds the maximum value by using fixed units. bool FindMaxValue(BaseType dic_index, ValueType *max_value) const { while (units_[dic_index].child() != '\0') { UCharType child_label = units_[dic_index].child(); if (!dic_.Follow(child_label, &dic_index)) { return false; } } if (!dic_.has_value(dic_index)) { return false; } *max_value = dic_.value(dic_index); return true; } // Enumerates links to the next states. template bool EnumerateLinks(BaseType dawg_index, BaseType dic_index, VALUE_COMPARER_TYPE value_comparer) { for (BaseType dawg_child_index = dawg_.child(dawg_index); dawg_child_index != 0; dawg_child_index = dawg_.sibling(dawg_child_index)) { ValueType value = -1; UCharType child_label = dawg_.label(dawg_child_index); if (child_label == '\0') { if (!dic_.has_value(dic_index)) { return false; } value = dic_.value(dic_index); } else { BaseType dic_child_index = dic_index; if (!dic_.Follow(child_label, &dic_child_index)) { return false; } if (!BuildRankedGuide(dawg_child_index, dic_child_index, &value, value_comparer)) { return false; } } links_.push_back(RankedGuideLink(child_label, value)); } return true; } // Modifies units. bool TurnLinksToUnits(BaseType dic_index, SizeType links_begin) { // The first child. UCharType first_label = links_[links_begin].label(); units_[dic_index].set_child(first_label); BaseType dic_child_index = FollowWithoutCheck(dic_index, first_label); // Other children. for (SizeType i = links_begin + 1; i < links_.size(); ++i) { UCharType sibling_label = links_[i].label(); BaseType dic_sibling_index = FollowWithoutCheck(dic_index, sibling_label); units_[dic_child_index].set_sibling(sibling_label); dic_child_index = dic_sibling_index; } return true; } // Follows a transition without any check. BaseType FollowWithoutCheck(BaseType index, UCharType label) const { return index ^ dic_.units()[index].offset() ^ label; } void set_is_fixed(BaseType index) { is_fixed_table_[index / 8] |= 1 << (index % 8); } bool is_fixed(BaseType index) const { return (is_fixed_table_[index / 8] & (1 << (index % 8))) != 0; } }; } // namespace dawgdic #endif // DAWGDIC_RANKED_GUIDE_BUILDER_H dawgdic-0.4.5/src/dawgdic/dictionary-extra-unit.h0000644000175000017500000000247511734533734016672 00000000000000#ifndef DAWGDIC_DICTIONARY_EXTRA_UNIT_H #define DAWGDIC_DICTIONARY_EXTRA_UNIT_H #include "base-types.h" namespace dawgdic { // Extra unit for building a dictionary. class DictionaryExtraUnit { public: DictionaryExtraUnit() : lo_values_(0), hi_values_(0) {} void clear() { lo_values_ = hi_values_ = 0; } // Sets if a unit is fixed or not. void set_is_fixed() { lo_values_ |= 1; } // Sets an index of the next unused unit. void set_next(BaseType next) { lo_values_ = (lo_values_ & 1) | (next << 1); } // Sets if an index is used as an offset or not. void set_is_used() { hi_values_ |= 1; } // Sets an index of the previous unused unit. void set_prev(BaseType prev) { hi_values_ = (hi_values_ & 1) | (prev << 1); } // Reads if a unit is fixed or not. bool is_fixed() const { return (lo_values_ & 1) == 1; } // Reads an index of the next unused unit. BaseType next() const { return lo_values_ >> 1; } // Reads if an index is used as an offset or not. bool is_used() const { return (hi_values_ & 1) == 1; } // Reads an index of the previous unused unit. BaseType prev() const { return hi_values_ >> 1; } private: BaseType lo_values_; BaseType hi_values_; // Copyable. }; } // namespace dawgdic #endif // DAWGDIC_DICTIONARY_EXTRA_UNIT_H dawgdic-0.4.5/src/dawgdic/ranked-completer-candidate.h0000644000175000017500000000260011734534573017565 00000000000000#ifndef DAWGDIC_RANKED_COMPLETER_CANDIDATE_H #define DAWGDIC_RANKED_COMPLETER_CANDIDATE_H #include "base-types.h" namespace dawgdic { class RankedCompleterCandidate { public: RankedCompleterCandidate() : node_index_(0), value_(-1) {} void set_node_index(BaseType node_index) { node_index_ = node_index; } void set_value(ValueType value) { value_ = value; } BaseType node_index() const { return node_index_; } ValueType value() const { return value_; } template class Comparer { public: typedef VALUE_COMPARER_TYPE ValueComparerType; explicit Comparer(ValueComparerType value_comparer) : value_comparer_(value_comparer) {} bool operator()(const RankedCompleterCandidate &lhs, const RankedCompleterCandidate &rhs) const { if (lhs.value() != rhs.value()) { return value_comparer_(lhs.value(), rhs.value()); } return lhs.node_index() > rhs.node_index(); } private: ValueComparerType value_comparer_; }; template static Comparer MakeComparer( VALUE_COMPARER_TYPE value_comparer) { return Comparer(value_comparer); } private: BaseType node_index_; ValueType value_; // Copyable. }; } // namespace dawgdic #endif // DAWGDIC_RANKED_COMPLETER_CANDIDATE_H dawgdic-0.4.5/src/dawgdic/link-table.h0000644000175000017500000000340511734534117014437 00000000000000#ifndef DAWGDIC_LINK_TABLE_H #define DAWGDIC_LINK_TABLE_H #include "base-types.h" #include "dictionary-unit.h" #include namespace dawgdic { class LinkTable { public: explicit LinkTable() : hash_table_() {} // Initializes a hash table. void Init(SizeType table_size) { PairType initial_pair(0, 0); std::vector table(table_size, initial_pair); hash_table_.swap(table); } // Finds an offset that corresponds to a given index. BaseType Find(BaseType index) const { BaseType hash_id = FindId(index); return hash_table_[hash_id].second; } // Inserts an index with its offset. void Insert(BaseType index, BaseType offset) { BaseType hash_id = FindId(index); hash_table_[hash_id].first = index; hash_table_[hash_id].second = offset; } private: typedef std::pair PairType; std::vector hash_table_; // Disallows copies. LinkTable(const LinkTable &); LinkTable &operator=(const LinkTable &); // Finds an Id from an upper table. BaseType FindId(BaseType index) const { BaseType hash_id = Hash(index) % hash_table_.size(); while (hash_table_[hash_id].first != 0) { if (index == hash_table_[hash_id].first) { return hash_id; } hash_id = (hash_id + 1) % hash_table_.size(); } return hash_id; } // 32-bit mix function. // http://www.concentric.net/~Ttwang/tech/inthash.htm static BaseType Hash(BaseType key) { key = ~key + (key << 15); // key = (key << 15) - key - 1; key = key ^ (key >> 12); key = key + (key << 2); key = key ^ (key >> 4); key = key * 2057; // key = (key + (key << 3)) + (key << 11); key = key ^ (key >> 16); return key; } }; } // namespace dawgdic #endif // DAWGDIC_LINK_TABLE_H dawgdic-0.4.5/src/dawgdic/dictionary-builder.h0000644000175000017500000002237411734535637016224 00000000000000#ifndef DAWGDIC_DICTIONARY_BUILDER_H #define DAWGDIC_DICTIONARY_BUILDER_H #include #include "dawg.h" #include "dictionary.h" #include "dictionary-extra-unit.h" #include "link-table.h" namespace dawgdic { class DictionaryBuilder { public: enum { // Number of units in a block. BLOCK_SIZE = 256, // Number of blocks kept unfixed. NUM_OF_UNFIXED_BLOCKS = 16, // Number of units kept unfixed. UNFIXED_SIZE = BLOCK_SIZE * NUM_OF_UNFIXED_BLOCKS }; // Builds a dictionary from a list-form dawg. static bool Build(const Dawg &dawg, Dictionary *dic, BaseType *num_of_unused_units = NULL) { DictionaryBuilder builder(dawg, dic); if (!builder.BuildDictionary()) { return false; } if (num_of_unused_units != NULL) { *num_of_unused_units = builder.num_of_unused_units_; } return true; } private: const Dawg &dawg_; Dictionary *dic_; std::vector units_; std::vector extras_; std::vector labels_; LinkTable link_table_; BaseType unfixed_index_; BaseType num_of_unused_units_; // Masks for offsets. static const BaseType UPPER_MASK = ~(DictionaryUnit::OFFSET_MAX - 1); static const BaseType LOWER_MASK = 0xFF; // Disallows copies. DictionaryBuilder(const DictionaryBuilder &); DictionaryBuilder &operator=(const DictionaryBuilder &); DictionaryBuilder(const Dawg &dawg, Dictionary *dic) : dawg_(dawg), dic_(dic), units_(), extras_(), labels_(), link_table_(), unfixed_index_(), num_of_unused_units_(0) {} ~DictionaryBuilder() { for (SizeType i = 0; i < extras_.size(); ++i) { delete [] extras_[i]; } } // Accesses units. DictionaryUnit &units(BaseType index) { return units_[index]; } const DictionaryUnit &units(BaseType index) const { return units_[index]; } DictionaryExtraUnit &extras(BaseType index) { return extras_[index / BLOCK_SIZE][index % BLOCK_SIZE]; } const DictionaryExtraUnit &extras(BaseType index) const { return extras_[index / BLOCK_SIZE][index % BLOCK_SIZE]; } // Number of units. BaseType num_of_units() const { return static_cast(units_.size()); } // Number of blocks. BaseType num_of_blocks() const { return static_cast(extras_.size()); } // Builds a dictionary from a list-form dawg. bool BuildDictionary() { link_table_.Init(dawg_.num_of_merging_states() + (dawg_.num_of_merging_states() >> 1)); ReserveUnit(0); extras(0).set_is_used(); units(0).set_offset(1); units(0).set_label('\0'); if (dawg_.size() > 1) { if (!BuildDictionary(dawg_.root(), 0)) { return false; } } FixAllBlocks(); dic_->SwapUnitsBuf(&units_); return true; } // Builds a dictionary from a dawg. bool BuildDictionary(BaseType dawg_index, BaseType dic_index) { if (dawg_.is_leaf(dawg_index)) { return true; } // Uses an existing offset if available. BaseType dawg_child_index = dawg_.child(dawg_index); if (dawg_.is_merging(dawg_child_index)) { BaseType offset = link_table_.Find(dawg_child_index); if (offset != 0) { offset ^= dic_index; if (!(offset & UPPER_MASK) || !(offset & LOWER_MASK)) { if (dawg_.is_leaf(dawg_child_index)) { units(dic_index).set_has_leaf(); } units(dic_index).set_offset(offset); return true; } } } // Finds a good offset and arranges child nodes. BaseType offset = ArrangeChildNodes(dawg_index, dic_index); if (offset == 0) { return false; } if (dawg_.is_merging(dawg_child_index)) link_table_.Insert(dawg_child_index, offset); { } // Builds a double-array in depth-first order. do { BaseType dic_child_index = offset ^ dawg_.label(dawg_child_index); if (!BuildDictionary(dawg_child_index, dic_child_index)) { return false; } dawg_child_index = dawg_.sibling(dawg_child_index); } while (dawg_child_index != 0); return true; } // Arranges child nodes. BaseType ArrangeChildNodes(BaseType dawg_index, BaseType dic_index) { labels_.clear(); BaseType dawg_child_index = dawg_.child(dawg_index); while (dawg_child_index != 0) { labels_.push_back(dawg_.label(dawg_child_index)); dawg_child_index = dawg_.sibling(dawg_child_index); } // Finds a good offset. BaseType offset = FindGoodOffset(dic_index); if (!units(dic_index).set_offset(dic_index ^ offset)) { return 0; } dawg_child_index = dawg_.child(dawg_index); for (SizeType i = 0; i < labels_.size(); ++i) { BaseType dic_child_index = offset ^ labels_[i]; ReserveUnit(dic_child_index); if (dawg_.is_leaf(dawg_child_index)) { units(dic_index).set_has_leaf(); units(dic_child_index).set_value(dawg_.value(dawg_child_index)); } else { units(dic_child_index).set_label(labels_[i]); } dawg_child_index = dawg_.sibling(dawg_child_index); } extras(offset).set_is_used(); return offset; } // Finds a good offset. BaseType FindGoodOffset(BaseType index) const { if (unfixed_index_ >= num_of_units()) { return num_of_units() | (index & 0xFF); } // Scans unused units to find a good offset. BaseType unfixed_index = unfixed_index_; do { BaseType offset = unfixed_index ^ labels_[0]; if (IsGoodOffset(index, offset)) { return offset; } unfixed_index = extras(unfixed_index).next(); } while (unfixed_index != unfixed_index_); return num_of_units() | (index & 0xFF); } // Checks if a given offset is valid or not. bool IsGoodOffset(BaseType index, BaseType offset) const { if (extras(offset).is_used()) { return false; } BaseType relative_offset = index ^ offset; if ((relative_offset & LOWER_MASK) && (relative_offset & UPPER_MASK)) { return false; } // Finds a collision. for (SizeType i = 1; i < labels_.size(); ++i) { if (extras(offset ^ labels_[i]).is_fixed()) { return false; } } return true; } // Reserves an unused unit. void ReserveUnit(BaseType index) { if (index >= num_of_units()) { ExpandDictionary(); } // Removes an unused unit from a circular linked list. if (index == unfixed_index_) { unfixed_index_ = extras(index).next(); if (unfixed_index_ == index) { unfixed_index_ = num_of_units(); } } extras(extras(index).prev()).set_next(extras(index).next()); extras(extras(index).next()).set_prev(extras(index).prev()); extras(index).set_is_fixed(); } // Expands a dictionary. void ExpandDictionary() { BaseType src_num_of_units = num_of_units(); BaseType src_num_of_blocks = num_of_blocks(); BaseType dest_num_of_units = src_num_of_units + BLOCK_SIZE; BaseType dest_num_of_blocks = src_num_of_blocks + 1; // Fixes an old block. if (dest_num_of_blocks > NUM_OF_UNFIXED_BLOCKS) { FixBlock(src_num_of_blocks - NUM_OF_UNFIXED_BLOCKS); } units_.resize(dest_num_of_units); extras_.resize(dest_num_of_blocks, 0); // Allocates memory to a new block. if (dest_num_of_blocks > NUM_OF_UNFIXED_BLOCKS) { BaseType block_id = src_num_of_blocks - NUM_OF_UNFIXED_BLOCKS; std::swap(extras_[block_id], extras_.back()); for (BaseType i = src_num_of_units; i < dest_num_of_units; ++i) { extras(i).clear(); } } else { extras_.back() = new DictionaryExtraUnit[BLOCK_SIZE]; } // Creates a circular linked list for a new block. for (BaseType i = src_num_of_units + 1; i < dest_num_of_units; ++i) { extras(i - 1).set_next(i); extras(i).set_prev(i - 1); } extras(src_num_of_units).set_prev(dest_num_of_units - 1); extras(dest_num_of_units - 1).set_next(src_num_of_units); // Merges 2 circular linked lists. extras(src_num_of_units).set_prev(extras(unfixed_index_).prev()); extras(dest_num_of_units - 1).set_next(unfixed_index_); extras(extras(unfixed_index_).prev()).set_next(src_num_of_units); extras(unfixed_index_).set_prev(dest_num_of_units - 1); } // Fixes all blocks to avoid invalid transitions. void FixAllBlocks() { BaseType begin = 0; if (num_of_blocks() > NUM_OF_UNFIXED_BLOCKS) { begin = num_of_blocks() - NUM_OF_UNFIXED_BLOCKS; } BaseType end = num_of_blocks(); for (BaseType block_id = begin; block_id != end; ++block_id) { FixBlock(block_id); } } // Adjusts labels of unused units in a given block. void FixBlock(BaseType block_id) { BaseType begin = block_id * BLOCK_SIZE; BaseType end = begin + BLOCK_SIZE; // Finds an unused offset. BaseType unused_offset_for_label = 0; for (BaseType offset = begin; offset != end; ++offset) { if (!extras(offset).is_used()) { unused_offset_for_label = offset; break; } } // Labels of unused units are modified. for (BaseType index = begin; index != end; ++index) { if (!extras(index).is_fixed()) { ReserveUnit(index); units(index).set_label( static_cast(index ^ unused_offset_for_label)); ++num_of_unused_units_; } } } }; } // namespace dawgdic #endif // DAWGDIC_DICTIONARY_BUILDER_H dawgdic-0.4.5/src/dawgdic/guide.h0000644000175000017500000000544712022315160013504 00000000000000#ifndef DAWGDIC_GUIDE_H #define DAWGDIC_GUIDE_H #include "dictionary.h" #include "guide-unit.h" #include #include namespace dawgdic { class Guide { public: Guide() : units_(NULL), size_(0), units_buf_() {} const GuideUnit *units() const { return units_; } SizeType size() const { return size_; } SizeType total_size() const { return sizeof(GuideUnit) * size_; } SizeType file_size() const { return sizeof(BaseType) + total_size(); } // The root index. BaseType root() const { return 0; } UCharType child(BaseType index) const { return units_[index].child(); } UCharType sibling(BaseType index) const { return units_[index].sibling(); } // Reads a dictionary from an input stream. bool Read(std::istream *input) { BaseType base_size; if (!input->read(reinterpret_cast(&base_size), sizeof(BaseType))) { return false; } SizeType size = static_cast(base_size); std::vector units_buf(size); if (!input->read(reinterpret_cast(&units_buf[0]), sizeof(GuideUnit) * size)) { return false; } SwapUnitsBuf(&units_buf); return true; } // Writes a dictionry to an output stream. bool Write(std::ostream *output) const { BaseType base_size = static_cast(size_); if (!output->write(reinterpret_cast(&base_size), sizeof(BaseType))) { return false; } if (!output->write(reinterpret_cast(units_), sizeof(GuideUnit) * size_)) { return false; } return true; } // Maps memory with its size. void Map(const void *address) { Clear(); units_ = reinterpret_cast( static_cast(address) + 1); size_ = *static_cast(address); } void Map(const void *address, SizeType size) { Clear(); units_ = static_cast(address); size_ = size; } // Swaps Guides. void Swap(Guide *guide) { std::swap(units_, guide->units_); std::swap(size_, guide->size_); units_buf_.swap(guide->units_buf_); } // Initializes a Guide. void Clear() { units_ = NULL; size_ = 0; std::vector(0).swap(units_buf_); } public: // Following member function is called from DawgBuilder. // Swaps buffers for units. void SwapUnitsBuf(std::vector *units_buf) { units_ = &(*units_buf)[0]; size_ = static_cast(units_buf->size()); units_buf_.swap(*units_buf); } private: const GuideUnit *units_; SizeType size_; std::vector units_buf_; // Disables copies. Guide(const Guide &); Guide &operator=(const Guide &); }; } // namespace dawgdic #endif // DAWGDIC_GUIDE_H dawgdic-0.4.5/src/dawgdic/ranked-guide-link.h0000644000175000017500000000261111734535314015705 00000000000000#ifndef DAWGDIC_RANKED_GUIDE_LINK_H #define DAWGDIC_RANKED_GUIDE_LINK_H namespace dawgdic { class RankedGuideLink { public: RankedGuideLink() : label_('\0'), value_(-1) {} RankedGuideLink(UCharType label, ValueType value) : label_(label), value_(value) {} void set_label(UCharType label) { label_ = label; } void set_value(ValueType value) { value_ = value; } UCharType label() const { return label_; } ValueType value() const { return value_; } // For sortings links in descending value order. template class Comparer { public: typedef VALUE_COMPARER_TYPE ValueComparerType; explicit Comparer(ValueComparerType value_comparer) : value_comparer_(value_comparer) {} bool operator()(const RankedGuideLink &lhs, const RankedGuideLink &rhs) const { if (lhs.value() != rhs.value()) { return value_comparer_(rhs.value(), lhs.value()); } return lhs.label() < rhs.label(); } private: ValueComparerType value_comparer_; }; template static Comparer MakeComparer( VALUE_COMPARER_TYPE value_comparer) { return Comparer(value_comparer); } private: UCharType label_; ValueType value_; // Copyable. }; } // namespace dawgdic #endif // DAWGDIC_RANKED_GUIDE_LINK_H dawgdic-0.4.5/src/Makefile.in0000664000175000017500000004300512051033472012700 00000000000000# Makefile.in generated by automake 1.11.3 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software # Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. @SET_MAKE@ VPATH = @srcdir@ pkgdatadir = $(datadir)/@PACKAGE@ pkgincludedir = $(includedir)/@PACKAGE@ pkglibdir = $(libdir)/@PACKAGE@ pkglibexecdir = $(libexecdir)/@PACKAGE@ am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd install_sh_DATA = $(install_sh) -c -m 644 install_sh_PROGRAM = $(install_sh) -c install_sh_SCRIPT = $(install_sh) -c INSTALL_HEADER = $(INSTALL_DATA) transform = $(program_transform_name) NORMAL_INSTALL = : PRE_INSTALL = : POST_INSTALL = : NORMAL_UNINSTALL = : PRE_UNINSTALL = : POST_UNINSTALL = : bin_PROGRAMS = dawgdic-build$(EXEEXT) dawgdic-find$(EXEEXT) subdir = src DIST_COMMON = $(dawgdic_include_HEADERS) $(srcdir)/Makefile.am \ $(srcdir)/Makefile.in ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 am__aclocal_m4_deps = $(top_srcdir)/configure.ac am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \ $(ACLOCAL_M4) mkinstalldirs = $(install_sh) -d CONFIG_CLEAN_FILES = CONFIG_CLEAN_VPATH_FILES = am__installdirs = "$(DESTDIR)$(bindir)" \ "$(DESTDIR)$(dawgdic_includedir)" PROGRAMS = $(bin_PROGRAMS) am_dawgdic_build_OBJECTS = dawgdic-build.$(OBJEXT) dawgdic_build_OBJECTS = $(am_dawgdic_build_OBJECTS) dawgdic_build_LDADD = $(LDADD) am_dawgdic_find_OBJECTS = dawgdic-find.$(OBJEXT) dawgdic_find_OBJECTS = $(am_dawgdic_find_OBJECTS) dawgdic_find_LDADD = $(LDADD) DEFAULT_INCLUDES = -I.@am__isrc@ depcomp = $(SHELL) $(top_srcdir)/depcomp am__depfiles_maybe = depfiles am__mv = mv -f CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \ $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) CXXLD = $(CXX) CXXLINK = $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) \ -o $@ SOURCES = $(dawgdic_build_SOURCES) $(dawgdic_find_SOURCES) DIST_SOURCES = $(dawgdic_build_SOURCES) $(dawgdic_find_SOURCES) am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; 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} bool guide() const { return guide_; } bool ranked() const { return ranked_; } const std::string &dic_file_name() const { return dic_file_name_; } const std::string &lexicon_file_name() const { return lexicon_file_name_; } bool Parse(int argc, char *argv[]) { for (int i = 1; i < argc; ++i) { // Parses options. if (argv[i][0] == '-' && argv[i][1] != '\0') { for (int j = 1; argv[i][j] != '\0'; ++j) { switch (argv[i][j]) { case 'h': { help_ = true; break; } case 'g': { guide_ = true; break; } case 'r': { ranked_ = true; break; } default: { // Invalid option. return false; } } } } else if (dic_file_name_.empty()) { dic_file_name_ = argv[i]; } else if (lexicon_file_name_.empty()) { lexicon_file_name_ = argv[i]; } else { // Too many arguments. return false; } } // Uses default settings for file names. if (dic_file_name_.empty()) { dic_file_name_ = "-"; } if (lexicon_file_name_.empty()) { lexicon_file_name_ = "-"; } return true; } static void ShowUsage(std::ostream *output) { *output << "Usage: - [Options] [DicFile] [LexiconFile]\n" "\n" "Options:\n" " -h display this help and exit\n" " -g load dictionary with guide\n" " -r load dictionary with ranked guide\n"; *output << std::endl; } private: bool help_; bool guide_; bool ranked_; std::string dic_file_name_; std::string lexicon_file_name_; // Disallows copies. CommandOptions(const CommandOptions &); CommandOptions &operator=(const CommandOptions &); }; // Example of finding prefix keys from each line of an input text. void FindPrefixKeys(const dawgdic::Dictionary &dic, std::istream *input) { std::string line; while (std::getline(*input, line)) { std::cout << line << ':'; dawgdic::BaseType index = dic.root(); for (std::size_t i = 0; i < line.length(); ++i) { if (!dic.Follow(line[i], &index)) { break; } // Reads a value. if (dic.has_value(index)) { std::cout << ' '; std::cout.write(line.c_str(), i + 1); std::cout << " = " << dic.value(index) << ';'; } } std::cout << std::endl; } } // Example of completing ranked keys from each line of an input text. template void CompleteKeys(const dawgdic::Dictionary &dic, const GUIDE_TYPE &guide, std::istream *input) { COMPLETER_TYPE completer(dic, guide); std::string line; while (std::getline(*input, line)) { std::cout << line << ':'; dawgdic::BaseType index = dic.root(); if (dic.Follow(line.c_str(), line.length(), &index)) { completer.Start(index); while (completer.Next()) { std::cout << ' ' << line << completer.key() << " = " << completer.value(); } } std::cout << std::endl; } } } // namespace int main(int argc, char *argv[]) { CommandOptions options; if (!options.Parse(argc, argv)) { CommandOptions::ShowUsage(&std::cerr); return 1; } else if (options.help()) { CommandOptions::ShowUsage(&std::cerr); return 0; } const std::string &dic_file_name = options.dic_file_name(); const std::string &lexicon_file_name = options.lexicon_file_name(); std::istream *dic_stream = &std::cin; std::istream *lexicon_stream = &std::cin; // Opens a dictionary file. std::ifstream dic_file; if (dic_file_name != "-") { dic_file.open(dic_file_name.c_str(), std::ios::binary); if (!dic_file) { std::cerr << "error: failed to open DicFile: " << dic_file_name << std::endl; return 1; } dic_stream = &dic_file; } // Opens a lexicon file. std::ifstream lexicon_file; if (lexicon_file_name != "-") { lexicon_file.open(lexicon_file_name.c_str(), std::ios::binary); if (!lexicon_file) { std::cerr << "error: failed to open LexiconFile: " << lexicon_file_name << std::endl; return 1; } lexicon_stream = &lexicon_file; } dawgdic::Dictionary dic; if (!dic.Read(dic_stream)) { std::cerr << "error: failed to read Dictionary" << std::endl; return 1; } if (options.ranked()) { dawgdic::RankedGuide guide; if (!guide.Read(dic_stream)) { std::cerr << "error: failed to read RankedGuide" << std::endl; return 1; } CompleteKeys(dic, guide, lexicon_stream); } else if (options.guide()) { dawgdic::Guide guide; if (!guide.Read(dic_stream)) { std::cerr << "error: failed to read Guide" << std::endl; return 1; } CompleteKeys(dic, guide, lexicon_stream); } else { FindPrefixKeys(dic, lexicon_stream); } return 0; } dawgdic-0.4.5/src/dawgdic-build.cc0000664000175000017500000002037312024047412013643 00000000000000#include #include #include #include #include #include #include #include #include namespace { class CommandOptions { public: CommandOptions() : help_(false), tab_(false), guide_(false), ranked_(false), lexicon_file_name_(), dic_file_name_() {} // Reads options. bool help() const { return help_; } bool tab() const { return tab_; } bool guide() const { return guide_; } bool ranked() const { return ranked_; } const std::string &lexicon_file_name() const { return lexicon_file_name_; } const std::string &dic_file_name() const { return dic_file_name_; } bool Parse(int argc, char *argv[]) { for (int i = 1; i < argc; ++i) { // Parses options. if (argv[i][0] == '-' && argv[i][1] != '\0') { for (int j = 1; argv[i][j] != '\0'; ++j) { switch (argv[i][j]) { case 'h': { help_ = true; break; } case 't': { tab_ = true; break; } case 'g': { guide_ = true; break; } case 'r': { ranked_ = true; break; } default: { // Invalid option. return false; } } } } else if (lexicon_file_name_.empty()) { lexicon_file_name_ = argv[i]; } else if (dic_file_name_.empty()) { dic_file_name_ = argv[i]; } else { // Too many arguments. return false; } } // Uses default settings for file names. if (lexicon_file_name_.empty()) { lexicon_file_name_ = "-"; } if (dic_file_name_.empty()) { dic_file_name_ = "-"; } return true; } static void ShowUsage(std::ostream *output) { *output << "Usage: - [Options] [LexiconFile] [DicFile]\n" "\n" "Options:\n" " -h display this help and exit\n" " -t handle tab as separator\n" " -g build dictionary with guide\n" " -r build dictionary with ranked guide\n"; *output << std::endl; } private: bool help_; bool tab_; bool guide_; bool ranked_; std::string lexicon_file_name_; std::string dic_file_name_; // Disallows copies. CommandOptions(const CommandOptions &); CommandOptions &operator=(const CommandOptions &); }; // Builds a dawg from a sorted lexicon. bool BuildDawg(std::istream *lexicon_stream, dawgdic::Dawg *dawg, bool tab_on) { dawgdic::DawgBuilder dawg_builder; // Reads keys from an input stream and inserts them into a dawg. std::string key; std::size_t key_count = 0; while (std::getline(*lexicon_stream, key)) { std::string::size_type delim_pos = std::string::npos; if (tab_on) { delim_pos = key.find_first_of('\t'); } if (delim_pos == std::string::npos) { if (!dawg_builder.Insert(key.c_str())) { std::cerr << "error: failed to insert key: " << key << std::endl; return false; } } else { static const dawgdic::ValueType MAX_VALUE = std::numeric_limits::max(); // Fixes an invalid record value. long long record = std::strtoll(key.c_str() + delim_pos + 1, NULL, 10); dawgdic::ValueType value = static_cast(record); if (record < 0) { std::cerr << "warning: negative value is replaced by 0: " << record << std::endl; value = 0; } else if (record > MAX_VALUE) { std::cerr << "warning: too large value is replaced by " << MAX_VALUE << ": " << record << std::endl; value = MAX_VALUE; } if (!dawg_builder.Insert(key.c_str(), delim_pos, value)) { std::cerr << "error: failed to insert key: " << key << std::endl; return false; } } if (++key_count % 10000 == 0) { std::cerr << "no. keys: " << key_count << '\r'; } } dawg_builder.Finish(dawg); std::cerr << "no. keys: " << key_count << std::endl; std::cerr << "no. states: " << dawg->num_of_states() << std::endl; std::cerr << "no. transitions: " << dawg->num_of_transitions() << std::endl; std::cerr << "no. merged states: " << dawg->num_of_merged_states() << std::endl; std::cerr << "no. merging states: " << dawg->num_of_merging_states() << std::endl; std::cerr << "no. merged transitions: " << dawg->num_of_merged_transitions() << std::endl; return true; } // Builds a dictionary from a dawg. bool BuildDictionary(const dawgdic::Dawg &dawg, dawgdic::Dictionary *dic) { dawgdic::BaseType num_of_unused_units = 0; if (!dawgdic::DictionaryBuilder::Build(dawg, dic, &num_of_unused_units)) { std::cerr << "error: failed to build Dictionary" << std::endl; return false; } double unused_ratio = 100.0 * num_of_unused_units / dic->size(); std::cerr << "no. elements: " << dic->size() << std::endl; std::cerr << "no. unused elements: " << num_of_unused_units << " (" << unused_ratio << "%)" << std::endl; std::cerr << "dictionary size: " << dic->total_size() << std::endl; return true; } // Builds a ranked guide from a dawg and its dictionary. bool BuildRankedGuide(const dawgdic::Dawg &dawg, const dawgdic::Dictionary &dic, dawgdic::RankedGuide *guide) { if (!dawgdic::RankedGuideBuilder::Build(dawg, dic, guide)) { std::cerr << "failed to build RankedGuide" << std::endl; return false; } std::cerr << "no. units: " << guide->size() << std::endl; std::cerr << "guide size: " << guide->total_size() << std::endl; return true; } // Builds a guide from a dawg and its dictionary. bool BuildGuide(const dawgdic::Dawg &dawg, const dawgdic::Dictionary &dic, dawgdic::Guide *guide) { if (!dawgdic::GuideBuilder::Build(dawg, dic, guide)) { std::cerr << "failed to build Guide" << std::endl; return false; } std::cerr << "no. units: " << guide->size() << std::endl; std::cerr << "guide size: " << guide->total_size() << std::endl; return true; } } // namespace int main(int argc, char *argv[]) { CommandOptions options; if (!options.Parse(argc, argv)) { CommandOptions::ShowUsage(&std::cerr); return 1; } else if (options.help()) { CommandOptions::ShowUsage(&std::cerr); return 0; } const std::string &lexicon_file_name = options.lexicon_file_name(); const std::string &dic_file_name = options.dic_file_name(); std::istream *lexicon_stream = &std::cin; std::ostream *dic_stream = &std::cout; // Opens a lexicon file. std::ifstream lexicon_file; if (lexicon_file_name != "-") { lexicon_file.open(lexicon_file_name.c_str(), std::ios::binary); if (!lexicon_file) { std::cerr << "error: failed to open LexiconFile: " << lexicon_file_name << std::endl; return 1; } lexicon_stream = &lexicon_file; } // Opens a dictionary file. std::ofstream dic_file; if (dic_file_name != "-") { dic_file.open(dic_file_name.c_str(), std::ios::binary); if (!dic_file) { std::cerr << "error: failed to open DicFile: " << dic_file_name << std::endl; return 1; } dic_stream = &dic_file; } dawgdic::Dawg dawg; if (!BuildDawg(lexicon_stream, &dawg, options.tab())) { return 1; } dawgdic::Dictionary dic; if (!BuildDictionary(dawg, &dic)) { return 1; } if (!dic.Write(dic_stream)) { std::cerr << "error: failed to write Dictionary" << std::endl; return 1; } // Builds a guide. if (options.ranked()) { dawgdic::RankedGuide guide; if (!BuildRankedGuide(dawg, dic, &guide)) { return 1; } if (!guide.Write(dic_stream)) { std::cerr << "error: failed to write RankedGuide" << std::endl; return 1; } } else if (options.guide()) { dawgdic::Guide guide; if (!BuildGuide(dawg, dic, &guide)) { return 1; } if (!guide.Write(dic_stream)) { std::cerr << "error: failed to write Guide" << std::endl; return 1; } } return 0; } dawgdic-0.4.5/src/Makefile.am0000664000175000017500000000156512024047377012705 00000000000000AM_CXXFLAGS = -Wall -I$(top_srcdir)/src/ bin_PROGRAMS = dawgdic-build dawgdic-find dawgdic_build_SOURCES = dawgdic-build.cc dawgdic_find_SOURCES = dawgdic-find.cc dawgdic_includedir = $(includedir)/dawgdic dawgdic_include_HEADERS = \ dawgdic/base-types.h \ dawgdic/base-unit.h \ dawgdic/bit-pool.h \ dawgdic/object-pool.h \ dawgdic/link-table.h \ dawgdic/dawg.h \ dawgdic/dawg-builder.h \ dawgdic/dawg-unit.h \ dawgdic/dictionary.h \ dawgdic/dictionary-builder.h \ dawgdic/dictionary-extra-unit.h \ dawgdic/dictionary-unit.h \ dawgdic/completer.h \ dawgdic/guide.h \ dawgdic/guide-builder.h \ dawgdic/guide-unit.h \ dawgdic/ranked-completer.h \ dawgdic/ranked-completer-candidate.h \ dawgdic/ranked-completer-node.h \ dawgdic/ranked-guide.h \ dawgdic/ranked-guide-builder.h \ dawgdic/ranked-guide-link.h \ dawgdic/ranked-guide-unit.h dawgdic-0.4.5/AUTHORS0000644000175000017500000000003411572057677011131 00000000000000Susumu Yata dawgdic-0.4.5/depcomp0000755000175000017500000004271311572057677011450 00000000000000#! /bin/sh # depcomp - compile a program generating dependencies as side-effects scriptversion=2007-03-29.01 # Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007 Free Software # Foundation, Inc. # This program is free software; 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See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA # 02110-1301, USA. # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Originally written by Alexandre Oliva . case $1 in '') echo "$0: No command. Try \`$0 --help' for more information." 1>&2 exit 1; ;; -h | --h*) cat <<\EOF Usage: depcomp [--help] [--version] PROGRAM [ARGS] Run PROGRAMS ARGS to compile a file, generating dependencies as side-effects. Environment variables: depmode Dependency tracking mode. source Source file read by `PROGRAMS ARGS'. object Object file output by `PROGRAMS ARGS'. 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IFS=" " for arg do case $arg in -o) shift ;; $object) shift ;; *) set fnord "$@" "$arg" shift # fnord shift # $arg ;; esac done "$@" -E | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' | sed '$ s: \\$::' > "$tmpdepfile" rm -f "$depfile" echo "$object : \\" > "$depfile" cat < "$tmpdepfile" >> "$depfile" sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; msvisualcpp) # Important note: in order to support this mode, a compiler *must* # always write the preprocessed file to stdout, regardless of -o, # because we must use -o when running libtool. "$@" || exit $? IFS=" " for arg do case "$arg" in "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") set fnord "$@" shift shift ;; *) set fnord "$@" "$arg" shift shift ;; esac done "$@" -E | sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile" rm -f "$depfile" echo "$object : \\" > "$depfile" . 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Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. - Neither the name of the University of Tokushima nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 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