Everything about text processing. More...
Classes | |
class | kmp |
Exact pattern finding with the Knuth-Morris-Pratt's algorithm. More... | |
Functions | |
template<typename StreamType , typename StringType > | |
StreamType & | getline (StreamType &is, StringType &str) |
A portable version of std::getline( is, str, ' ' ) that removes a tailing ''. | |
template<class StringType > | |
void | trim_left (StringType &str, const typename StringType::value_type *const s=" ") |
Remove characters at the begining of a string. | |
template<class StringType > | |
void | trim_right (StringType &str, const typename StringType::value_type *const s=" ") |
Remove characters at the end of a string. | |
template<class StringType > | |
void | trim (StringType &str, const typename StringType::value_type *const s=" ") |
Remove characters at the begining end at the end of a string. | |
template<class StringType > | |
void | squeeze (StringType &str, const typename StringType::value_type *const s) |
Squeeze successive characters of a string into one character. | |
template<typename T , class StringType > | |
bool | is_of_type (const StringType &str) |
Test if the content of a string is immediately convertible to a type. | |
template<class BackInsertion , class StringType > | |
void | split (BackInsertion &sequence, const StringType &str, const typename StringType::value_type sep) |
Split a string into several substrings, according to a given separator. |
Everything about text processing.
StreamType & claw::text::getline | ( | StreamType & | is, | |
StringType & | str | |||
) |
A portable version of std::getline( is, str, '
' ) that removes a tailing ''.
is | The stream in which we read. | |
str | The line read from the stream. |
Definition at line 40 of file string_algorithm.tpp.
Referenced by claw::configuration_file::get_line(), claw::graphic::xbm::reader::read_line(), claw::graphic::xbm::reader::remove_comments(), and split().
{ std::getline( is, str ); if ( !str.empty() ) if ( str[ str.size() - 1 ] == typename StringType::value_type('\r') ) str.erase( str.size() - 1 ); return is; } // getline()
bool claw::text::is_of_type | ( | const StringType & | str | ) |
Test if the content of a string is immediately convertible to a type.
str | The string to test. |
Definition at line 146 of file string_algorithm.tpp.
{ std::basic_istringstream< typename StringType::value_type, typename StringType::traits_type, typename StringType::allocator_type > iss(str); T val; bool result = false; if ( iss >> val ) result = iss.eof(); return result; } // is_of_type()
void claw::text::split | ( | BackInsertion & | sequence, | |
const StringType & | str, | |||
const typename StringType::value_type | sep | |||
) |
Split a string into several substrings, according to a given separator.
sequence | A back insertion sequence in which the substrings are added. | |
str | The string to split. | |
sep | The separator on which the string is splitted. |
Definition at line 170 of file string_algorithm.tpp.
References getline().
{ StringType line; std::basic_istringstream< typename StringType::value_type, typename StringType::traits_type, typename StringType::allocator_type > iss(str); while ( std::getline(iss, line, sep) ) sequence.push_back(line); } // split()
void claw::text::squeeze | ( | StringType & | str, | |
const typename StringType::value_type *const | s | |||
) |
Squeeze successive characters of a string into one character.
str | The string to modify. | |
s | The characters to remove. |
Example : std::string s("word aaa bbb abab"); claw::squeeze( s, "ab" ); std::cout << s << std::end; // result is "word a b abab"
Definition at line 114 of file string_algorithm.tpp.
{ typedef typename StringType::size_type size_type; size_type first(0); do { first = str.find_first_of(s, first); if ( first != StringType::npos ) { size_type last = str.find_first_not_of(str[first], first+1); if ( last == StringType::npos ) str = str.substr(0, first+1); else if ( last - first > 1 ) str = str.substr(0, first+1) + str.substr(last); ++first; } } while ( (first != StringType::npos) && (first != str.length()) ); } // squeeze()
void claw::text::trim | ( | StringType & | str, | |
const typename StringType::value_type *const | s = " " | |||
) |
Remove characters at the begining end at the end of a string.
str | The string to modify. | |
s | The characters to remove. |
Definition at line 90 of file string_algorithm.tpp.
Referenced by claw::configuration_file::process_line(), claw::graphic::xbm::reader::read_line(), and claw::graphic::xbm::reader::remove_comments().
{ typename StringType::size_type first = str.find_first_not_of(s); typename StringType::size_type last = str.find_last_not_of(s); if (first != StringType::npos) str = str.substr( first, last - first + 1 ); } // trim()
void claw::text::trim_left | ( | StringType & | str, | |
const typename StringType::value_type *const | s = " " | |||
) |
Remove characters at the begining of a string.
str | The string to modify. | |
s | The characters to remove. |
Definition at line 58 of file string_algorithm.tpp.
Referenced by claw::configuration_file::get_line().
{ typename StringType::size_type p = str.find_first_not_of(s); if (p != StringType::npos) str = str.substr(p); } // trim_left()
void claw::text::trim_right | ( | StringType & | str, | |
const typename StringType::value_type *const | s = " " | |||
) |
Remove characters at the end of a string.
str | The string to modify. | |
s | The characters to remove. |
Definition at line 74 of file string_algorithm.tpp.
Referenced by claw::configuration_file::open().
{ typename StringType::size_type p = str.find_last_not_of(s); if (p != StringType::npos) str = str.substr( 0, p+1 ); } // trim_right()