104 lines
2.9 KiB
C++
104 lines
2.9 KiB
C++
|
#include "StringReader.h"
|
||
|
|
|
||
|
|
StringReader::StringReader()
|
||
|
|
{
|
||
|
|
str_pos = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
StringReader::StringReader(std::string inputString)
|
||
|
|
{
|
||
|
|
str_pos = 0;
|
||
|
|
setString(inputString);
|
||
|
|
}
|
||
|
|
|
||
|
|
StringReader::~StringReader()
|
||
|
|
{
|
||
|
|
//dtor
|
||
|
|
}
|
||
|
|
|
||
|
|
void StringReader::setString(std::string inputString)
|
||
|
|
{
|
||
|
|
rd_string = inputString;
|
||
|
|
end_reached = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string StringReader::word(bool truncateEnd)
|
||
|
|
{
|
||
|
|
std::vector<std::string> stop_chars;
|
||
|
|
stop_chars.push_back(" ");
|
||
|
|
stop_chars.push_back("\n");
|
||
|
|
stop_chars.push_back("\t");
|
||
|
|
|
||
|
|
|
||
|
|
std::string result = getTokens(stop_chars, truncateEnd);
|
||
|
|
while (result == " " || result == "\n" || result == "\t")
|
||
|
|
{
|
||
|
|
result = getTokens(stop_chars, truncateEnd);
|
||
|
|
}
|
||
|
|
return(result);
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string StringReader::line(bool truncateEnd)
|
||
|
|
{
|
||
|
|
std::vector<std::string> stop_chars;
|
||
|
|
stop_chars.push_back("\n");
|
||
|
|
return getTokens(stop_chars, truncateEnd);
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string StringReader::getTokens(std::vector<std::string> stop_chars, bool truncateEnd)
|
||
|
|
{
|
||
|
|
int found_pos, new_found_pos;
|
||
|
|
std::string stop_char;
|
||
|
|
|
||
|
|
found_pos = rd_string.find(stop_chars[0], str_pos);
|
||
|
|
stop_char = stop_chars[0];
|
||
|
|
|
||
|
|
for (unsigned int i = 1; i < stop_chars.size(); i++)
|
||
|
|
{
|
||
|
|
new_found_pos = rd_string.find(stop_chars[i], str_pos);
|
||
|
|
|
||
|
|
//Ok, if the position we found is closer than what we have and is not the end of file, OR the position we are at is the end of file
|
||
|
|
//assign the new found position to the currrent found position
|
||
|
|
if ( ((new_found_pos <= found_pos) && (new_found_pos != std::string::npos)) || found_pos == std::string::npos )
|
||
|
|
{
|
||
|
|
found_pos = new_found_pos;
|
||
|
|
stop_char = stop_chars[i];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (found_pos == str_pos) //We are at the endline
|
||
|
|
{
|
||
|
|
str_pos++;
|
||
|
|
return stop_char;
|
||
|
|
} else if (found_pos == std::string::npos) //We are at the end of the file
|
||
|
|
{
|
||
|
|
//End of String
|
||
|
|
end_reached = true;
|
||
|
|
std::cout << "Reached end of file!\n";
|
||
|
|
return "";
|
||
|
|
} else {
|
||
|
|
|
||
|
|
std::string string_section;
|
||
|
|
|
||
|
|
if (truncateEnd) //If we want to get rid of the delimiting character, which is the default, don't add the last char. Note we have to increase str_pos by one manually later
|
||
|
|
found_pos -= 1;
|
||
|
|
|
||
|
|
for (; str_pos <= found_pos; str_pos++)
|
||
|
|
{
|
||
|
|
string_section += rd_string[str_pos];
|
||
|
|
}
|
||
|
|
|
||
|
|
if (truncateEnd) //Ok, we didn't add the last char, but str_pos now points at that char. So we move it one ahead.
|
||
|
|
str_pos++;
|
||
|
|
return string_section;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string StringReader::truncateEnd(std::string to_truncate)
|
||
|
|
{
|
||
|
|
std::string to_return = "";
|
||
|
|
for (unsigned int i = 0; i < to_truncate.length()-1; i++)
|
||
|
|
to_return = to_return + to_truncate[i];
|
||
|
|
return to_return;
|
||
|
|
}
|