Gaudi::Utils::AttribStringParser Class Reference

Parse attribute strings allowing iteration over the various attributes. More...

#include <GaudiKernel/AttribStringParser.h>

Collaboration diagram for Gaudi::Utils::AttribStringParser:

Classes
struct	Attrib
	Simple class to wrap tag/value pairs. More...
class	Iterator
	Iterator to loop over the tag/value pairs in the attribute string. More...

Public Member Functions
	AttribStringParser (std::string data, bool expand_vars=true)
	Initialize the parsing of an attribute string. More...

Private Member Functions
boost::sregex_iterator	parse () const

Private Attributes
std::string	m_data
bool	m_expandVars

Friends
Iterator	begin (const AttribStringParser &)

Detailed Description

Parse attribute strings allowing iteration over the various attributes.

Example of usage:

using Parser = Gaudi::Utils::AttribStringParser;
std::string input{"key1='value1' key2='value2'"};
for(auto attrib: Parser(input)) {
  std::cout << attrib.tag << " -> " << attrib.value << std::endl;
}

Definition at line 30 of file AttribStringParser.h.

Constructor & Destructor Documentation

Gaudi::Utils::AttribStringParser::AttribStringParser ( std::string  data, bool  expand_vars = true  )

inline

Initialize the parsing of an attribute string.

Parameters

data	attribute string
expand_vars	if true (default) expand environment variables in values

Definition at line 119 of file AttribStringParser.h.

                                                               :
        m_data(data),
        m_expandVars(expand_vars) {
      }

Member Function Documentation

boost::sregex_iterator Gaudi::Utils::AttribStringParser::parse ( ) const

inlineprivate

Definition at line 128 of file AttribStringParser.h.

                                         {
        static const boost::regex exp{"[[:space:]]*([^[:space:]]+)[[:space:]]*=[[:space:]]*'(.*?)'"};
        return boost::sregex_iterator(begin(m_data), end(m_data), exp);
      }

Friends And Related Function Documentation

Iterator begin ( const AttribStringParser &  parser )

friend

Definition at line 134 of file AttribStringParser.h.

                                                                              {
      return AttribStringParser::Iterator(parser.parse(), parser.m_expandVars);
    }

Member Data Documentation

std::string Gaudi::Utils::AttribStringParser::m_data

private

Definition at line 125 of file AttribStringParser.h.

bool Gaudi::Utils::AttribStringParser::m_expandVars

private

Definition at line 126 of file AttribStringParser.h.

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The documentation for this class was generated from the following file:

• GaudiKernel/GaudiKernel/AttribStringParser.h