Line selectors

Classes
class	PDB_line_selector
class	PDB_line_selector_two_systems
class	PDB_line_selector_chain
class	Generic_line_selector< T1, T2, T3, T4, T5, T6, T7, T8, T9, T10 >

Description

This module gathers all objects provided to select lines of a molecular data file to create systems. Such an object must be a class of the following type:

struct Line_selector_concept{
  //returns the index (1...n) of the system in which that line matches: 
  // RMK stands for remark (including MODEL), while DISCARD indicate that the line should be discarded.
  template <class Line_format,class Occupancy_handler>
  int keep(const Line_format& line_format,const std::string& line,Occupancy_handler& occupancy)
  { ... }
 
  unsigned max_nb_systems() const {return 1;}
};

In function keep the template parameters are:

• Line_format is a helper class to read a molecular data file (such as ESBTL::PDB::Line_format).
• Occupancy_handler is a class following the concept of Occupancy policies. To benefit from the occupancy policy, you should use the function Occupancy_handler::add_or_postpone(line_format,line,index_of_system) to return the index of the system the line must inserted in.