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| author | Riccardo Spagni <ric@spagni.net> | 2014-10-05 12:44:31 +0200 |
|---|---|---|
| committer | Riccardo Spagni <ric@spagni.net> | 2014-10-05 12:44:31 +0200 |
| commit | a04ca4b966c9d463cace9d80d942a2201fcb824a (patch) | |
| tree | 09267f3bca92d16fcdf166af8a32676f4d7cc569 /src/mnemonics/language_base.h | |
| parent | Merge pull request #169 (diff) | |
| parent | added trim_length to language_base class, added license to langeuage_base (diff) | |
| download | monero-a04ca4b966c9d463cace9d80d942a2201fcb824a.tar.xz | |
Merge branch 'oranjuice'
Diffstat (limited to 'src/mnemonics/language_base.h')
| -rw-r--r-- | src/mnemonics/language_base.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/mnemonics/language_base.h b/src/mnemonics/language_base.h new file mode 100644 index 000000000..3a56a530c --- /dev/null +++ b/src/mnemonics/language_base.h @@ -0,0 +1,131 @@ +// Copyright (c) 2014, The Monero Project
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+// conditions and the following disclaimer.
+//
+// 2. 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.
+//
+// 3. Neither the name of the copyright holder 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. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+/*!
+ * \file language_base.h
+ *
+ * \brief Language Base class for Polymorphism.
+ */
+
+#ifndef LANGUAGE_BASE_H
+#define LANGUAGE_BASE_H
+
+#include <vector>
+#include <unordered_map>
+#include <string>
+
+/*!
+ * \namespace Language
+ * \brief Mnemonic language related namespace.
+ */
+namespace Language
+{
+ const int unique_prefix_length = 4; /*!< Length of the prefix of all words guaranteed to be unique */
+ /*!
+ * \class Base
+ * \brief A base language class which all languages have to inherit from for
+ * Polymorphism.
+ */
+ class Base
+ {
+ protected:
+ std::vector<std::string> *word_list; /*!< A pointer to the array of words */
+ std::unordered_map<std::string, uint32_t> *word_map; /*!< hash table to find word's index */
+ std::unordered_map<std::string, uint32_t> *trimmed_word_map; /*!< hash table to find word's trimmed index */
+ std::string language_name; /*!< Name of language */
+ /*!
+ * \brief Populates the word maps after the list is ready.
+ */
+ void populate_maps()
+ {
+ int ii;
+ std::vector<std::string>::iterator it;
+ for (it = word_list->begin(), ii = 0; it != word_list->end(); it++, ii++)
+ {
+ (*word_map)[*it] = ii;
+ if (it->length() > unique_prefix_length)
+ {
+ (*trimmed_word_map)[it->substr(0, unique_prefix_length)] = ii;
+ }
+ else
+ {
+ (*trimmed_word_map)[*it] = ii;
+ }
+ }
+ }
+ public:
+ Base()
+ {
+ word_list = new std::vector<std::string>;
+ word_map = new std::unordered_map<std::string, uint32_t>;
+ trimmed_word_map = new std::unordered_map<std::string, uint32_t>;
+ }
+ /*!
+ * \brief Returns a pointer to the word list.
+ * \return A pointer to the word list.
+ */
+ const std::vector<std::string>& get_word_list() const
+ {
+ return *word_list;
+ }
+ /*!
+ * \brief Returns a pointer to the word map.
+ * \return A pointer to the word map.
+ */
+ const std::unordered_map<std::string, uint32_t>& get_word_map() const
+ {
+ return *word_map;
+ }
+ /*!
+ * \brief Returns a pointer to the trimmed word map.
+ * \return A pointer to the trimmed word map.
+ */
+ const std::unordered_map<std::string, uint32_t>& get_trimmed_word_map() const
+ {
+ return *trimmed_word_map;
+ }
+ /*!
+ * \brief Returns the name of the language.
+ * \return Name of the language.
+ */
+ std::string get_language_name() const
+ {
+ return language_name;
+ }
+ /*!
+ * \brief Returns the number of unique starting characters to be used for matching.
+ * \return Number of unique starting characters.
+ */
+ std::string get_trim_length() const
+ {
+ return trim_length;
+ }
+ };
+}
+
+#endif
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