catch2/include/internal/catch_string_manip.cpp

78 lines
2.6 KiB
C++
Raw Normal View History

/*
* Created by Martin on 25/07/2017.
*
* Distributed under the Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#include "catch_string_manip.h"
#include <algorithm>
#include <ostream>
#include <cstring>
#include <cctype>
namespace Catch {
bool startsWith( std::string const& s, std::string const& prefix ) {
return s.size() >= prefix.size() && std::equal(prefix.begin(), prefix.end(), s.begin());
}
bool startsWith( std::string const& s, char prefix ) {
return !s.empty() && s[0] == prefix;
}
bool endsWith( std::string const& s, std::string const& suffix ) {
return s.size() >= suffix.size() && std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
}
bool endsWith( std::string const& s, char suffix ) {
return !s.empty() && s[s.size()-1] == suffix;
}
bool contains( std::string const& s, std::string const& infix ) {
return s.find( infix ) != std::string::npos;
}
char toLowerCh(char c) {
return static_cast<char>( std::tolower( c ) );
}
void toLowerInPlace( std::string& s ) {
std::transform( s.begin(), s.end(), s.begin(), toLowerCh );
}
std::string toLower( std::string const& s ) {
std::string lc = s;
toLowerInPlace( lc );
return lc;
}
std::string trim( std::string const& str ) {
static char const* whitespaceChars = "\n\r\t ";
std::string::size_type start = str.find_first_not_of( whitespaceChars );
std::string::size_type end = str.find_last_not_of( whitespaceChars );
return start != std::string::npos ? str.substr( start, 1+end-start ) : std::string();
}
bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis ) {
bool replaced = false;
std::size_t i = str.find( replaceThis );
while( i != std::string::npos ) {
replaced = true;
str = str.substr( 0, i ) + withThis + str.substr( i+replaceThis.size() );
if( i < str.size()-withThis.size() )
i = str.find( replaceThis, i+withThis.size() );
else
i = std::string::npos;
}
return replaced;
}
pluralise::pluralise( std::size_t count, std::string const& label )
: m_count( count ),
m_label( label )
{}
std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser ) {
os << pluraliser.m_count << ' ' << pluraliser.m_label;
if( pluraliser.m_count != 1 )
os << 's';
return os;
}
}