46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
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// Copyright 2018, University of Freiburg,
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// Chair of Algorithms and Data Structures.
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// Authors: Patrick Brosi <brosi@informatik.uni-freiburg.de>
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#ifndef PFAEDLE_TRGRAPH_NORMALIZER_H_
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#define PFAEDLE_TRGRAPH_NORMALIZER_H_
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#include <regex>
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#include <string>
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#include <unordered_map>
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#include <utility>
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#include <vector>
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namespace pfaedle {
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namespace trgraph {
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typedef std::pair<std::string, std::string> ReplRule;
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typedef std::vector<ReplRule> ReplRules;
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typedef std::pair<std::regex, std::string> ReplRuleComp;
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typedef std::vector<ReplRuleComp> ReplRulesComp;
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/*
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* A class for normalizing station names
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*/
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class Normalizer {
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public:
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Normalizer() {}
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explicit Normalizer(const ReplRules& rules);
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// Normalize sn based on the rules of this normalizer
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std::string operator()(std::string sn) const;
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bool operator==(const Normalizer& b) const;
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private:
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ReplRulesComp _rules;
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ReplRules _rulesOrig;
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mutable std::unordered_map<std::string, std::string> _cache;
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void buildRules(const ReplRules& rules);
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};
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} // namespace trgraph
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} // namespace pfaedle
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#endif // PFAEDLE_TRGRAPH_NORMALIZER_H_
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