.. _program_listing_file_uri-template_Matcher.h:

Program Listing for File Matcher.h
==================================

|exhale_lsh| :ref:`Return to documentation for file <file_uri-template_Matcher.h>` (``uri-template/Matcher.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #pragma once
   
   #include "Template.h"
   
   #include <optional>
   
   namespace URI {
   namespace Template {
   
   class Match
   {
   public:
       Match(std::size_t start, std::size_t end);
   
       ~Match() = default;
   
       std::size_t Start() const;
       std::size_t End() const;
   
   private:
       std::size_t start_; 
       std::size_t end_; 
   };
   
   std::optional<Match> MatchLiteral(const Literal& literal, const std::string& where, std::size_t start,
                                     bool exact_start);
   
   std::optional<VarValue> MatchVarValue(const Variable& var, const Operator& oper, std::optional<std::string>&& where);
   
   std::optional<Match> MatchExpression(const Expression& expression, const std::string& where, std::size_t start,
                                        std::size_t end, char terminator,
                                        std::unordered_map<std::string, VarValue>* values = nullptr);
   
   bool MatchURI(const Template& uri_template, const std::string& uri,
                 std::unordered_map<std::string, VarValue>* values = nullptr);
   
   } // namespace Template
   } // namespace URI