Source/cmStringReplaceHelper.h

   1 /* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   2    file Copyright.txt or https://cmake.org/licensing for details.  */
   3 #pragma once
   4
   5 #include <string>
   6 #include <utility>
   7 #include <vector>
   8
   9 #include "cmsys/RegularExpression.hxx"
  10
  11 class cmMakefile;
  12
  13 class cmStringReplaceHelper
  14 {
  15 public:
  16   cmStringReplaceHelper(const std::string& regex, std::string replace_expr,
  17                         cmMakefile* makefile = nullptr);
  18
  19   bool IsRegularExpressionValid() const
  20   {
  21     return this->RegularExpression.is_valid();
  22   }
  23   bool IsReplaceExpressionValid() const
  24   {
  25     return this->ValidReplaceExpression;
  26   }
  27
  28   bool Replace(const std::string& input, std::string& output);
  29
  30   const std::string& GetError() { return this->ErrorString; }
  31
  32 private:
  33   class RegexReplacement
  34   {
  35   public:
  36     RegexReplacement(const char* s)
  37       : Number(-1)
  38       , Value(s)
  39     {
  40     }
  41     RegexReplacement(std::string s)
  42       : Number(-1)
  43       , Value(std::move(s))
  44     {
  45     }
  46     RegexReplacement(int n)
  47       : Number(n)
  48     {
  49     }
  50     RegexReplacement() = default;
  51
  52     int Number;
  53     std::string Value;
  54   };
  55
  56   void ParseReplaceExpression();
  57
  58   std::string ErrorString;
  59   std::string RegExString;
  60   cmsys::RegularExpression RegularExpression;
  61   bool ValidReplaceExpression = true;
  62   std::string ReplaceExpression;
  63   std::vector<RegexReplacement> Replacements;
  64   cmMakefile* Makefile = nullptr;
  65 };