genie::utils::str Namespace Reference

Utilities for string manipulation. More...

Functions
string	TrimSpaces (string input)
string	IntAsString (int i)
vector< string >	Split (string input, string delim)
string	RemoveSuccessiveSpaces (string input)
void	ReplaceStringInPlace (string &subject, const string &search, const string &replace)
string	FilterString (string filt, string input)
string	ToUpper (string input)
string	ToLower (string input)
template<class T >
bool	Convert (const vector< std::string > &input, std::vector< T > &v)

Detailed Description

Utilities for string manipulation.

Author

Costas Andreopoulos <constantinos.andreopoulos cern.ch> University of Liverpool & STFC Rutherford Appleton Laboratory

January 12, 2004

Copyright (c) 2003-2020, The GENIE Collaboration For the full text of the license visit http://copyright.genie-mc.org

Function Documentation

template<class T >

bool genie::utils::str::Convert	(	const vector< std::string > &	input,
		std::vector< T > &	v
	)

string genie::utils::str::FilterString	(	string	filt,
		string	input
	)

Definition at line 79 of file StringUtils.cxx.

{
// filter out from 'input' all characters that can be found in 'filt_elements'

  string filtered_string = input;
  string::size_type pos = 0;

  while( (pos = filtered_string.find_first_of(
                       filt_elements, pos)) != string::npos )
                                                filtered_string.erase(pos,1);
  return filtered_string;
}

string genie::utils::str::IntAsString

(

int

i

)

Definition at line 29 of file StringUtils.cxx.

{
  ostringstream os;
  os << i;
  return os.str();
}

string genie::utils::str::RemoveSuccessiveSpaces

(

string

input

)

Definition at line 52 of file StringUtils.cxx.

{
// this method trims white space that may be found within an expression...
// eg. "stop    pressing     the spacebar" -> "stop pressing the spacebar"

  string trimmed = input;

  string::size_type pos = 0;

  while( (pos = trimmed.find_first_of(" ", pos)) != string::npos ) {
     if( trimmed[++pos] == ' ' ) trimmed.erase(pos--,1);
  }
  return FilterString("\n",trimmed);
}

void genie::utils::str::ReplaceStringInPlace	(	string &	subject,
		const string &	search,
		const string &	replace
	)

Definition at line 67 of file StringUtils.cxx.

{
// Searches the string "input" for "search" and replaces this with "replace"
  size_t pos = 0;
  while ((pos = subject.find(search, pos)) != std::string::npos) {
    subject.replace(pos, search.length(), replace);
    // move to end of replaced string
    pos += replace.length();
  }
}

vector< string > genie::utils::str::Split	(	string	input,
		string	delim
	)

Definition at line 36 of file StringUtils.cxx.

{
// split a string of 'delimiter' separated values and return each string
// part as a vector<string> element.

  vector<string> string_parts;

  while(input.find_first_of(delimiter) < input.length()) {

    string_parts.push_back( input.substr(0, input.find_first_of(delimiter)) );
    input = input.substr(input.find_first_of(delimiter)+1, input.length());
  }
  string_parts.push_back(input);
  return string_parts;
}

string genie::utils::str::ToLower

(

string

input

)

Definition at line 98 of file StringUtils.cxx.

{
  for(unsigned int i=0; i<input.size(); i++) input[i] = tolower(input[i]);
  return input;
}

string genie::utils::str::ToUpper

(

string

input

)

Definition at line 92 of file StringUtils.cxx.

{
  for(unsigned int i=0; i<input.size(); i++) input[i] = toupper(input[i]);
  return input;
}

string genie::utils::str::TrimSpaces

(

string

input

)

Definition at line 18 of file StringUtils.cxx.

{
  if( input.find_first_not_of(" \n") != 0)
       input.erase( 0,  input.find_first_not_of(" \n")  );

  if( input.find_last_not_of(" \n") != input.length() )
       input.erase( input.find_last_not_of(" \n")+1, input.length() );

  return RemoveSuccessiveSpaces(input);
}