utils_prm.cpp

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/****************************************************************************
 *   This file is part of the aGrUM/pyAgrum library.                        *
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 *   Copyright (c) 2005-2026 by                                             *
 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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 *   SPDX-FileCopyrightText: Copyright 2005-2026                            *
 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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 *   homepage : http://agrum.gitlab.io                                      *
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#include <agrum/PRM/utils_prm.h>
 
namespace gum {
  namespace prm {
 
    // Decompose a string in a vector of strings using "." as separators.
    void decomposePath(std::string_view path, std::vector< std::string >& v) {
      size_t prev   = 0;
      size_t length = 0;
      size_t idx_1  = path.find(".");
      size_t idx_2  = path.find(PRMObject::LEFT_CAST());
 
      if (idx_2 == std::string::npos) {
        // ignore safe names
        size_t idx = idx_1;
 
        while (idx != std::string::npos) {
          length = idx - prev;
          v.emplace_back(path.substr(prev, length));
          prev = idx + 1;
          idx  = path.find(".", prev);
        }
      } else {
        size_t tmp = 0;
 
        while (idx_1 != std::string::npos) {
          if (idx_1 < idx_2) {
            length = idx_1 - prev;
            v.emplace_back(path.substr(prev, length));
            prev  = idx_1 + 1;
            idx_1 = path.find(".", prev);
          } else if (idx_2 < idx_1) {
            tmp   = path.find(PRMObject::RIGHT_CAST(), idx_2);
            idx_1 = path.find(".", tmp);
            idx_2 = path.find(PRMObject::LEFT_CAST(), tmp);
          }
        }
      }
 
      v.emplace_back(path.substr(prev, std::string::npos));
    }
 
    NodeId nextNodeId() {
      static NodeId id = 0;
      return ++id;
    }
 
  } /* namespace prm */
}   // namespace gum