mfranz
dcb95d131b
- coplied license headers from h(xx) files to respective c(xx) files - removed trailing spaces - fixe $Id$ - fixed typos
100 lines
2.6 KiB
C++
100 lines
2.6 KiB
C++
// tabbed_values.cxx -- parse tab separated strings into fields
|
|
//
|
|
// Written by James Turner, started February 2003.
|
|
//
|
|
// Copyright (C) 2003 James Turner
|
|
//
|
|
// This library is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU Library General Public
|
|
// License as published by the Free Software Foundation; either
|
|
// version 2 of the License, or (at your option) any later version.
|
|
//
|
|
// This library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
// Library General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
//
|
|
// $Id$
|
|
|
|
#include "tabbed_values.hxx"
|
|
|
|
#include "assert.h"
|
|
|
|
SGTabbedValues::SGTabbedValues(const char *line) :
|
|
_line(line)
|
|
{
|
|
assert(line);
|
|
_fields.push_back(const_cast<char*>(line));
|
|
}
|
|
|
|
const char* SGTabbedValues::fieldAt(const unsigned int index) const
|
|
{
|
|
// we already computed that offset, cool
|
|
if (_fields.size() > index)
|
|
return _fields[index];
|
|
|
|
while (_fields.size() <= index) {
|
|
char* nextField = _fields.back();
|
|
if (*nextField=='\0') return NULL; // we went off the end
|
|
|
|
while (*nextField != '\t') {
|
|
if (*nextField=='\0') return NULL; // we went off the end
|
|
++nextField;
|
|
}
|
|
_fields.push_back(++nextField);
|
|
}
|
|
|
|
return _fields.back();
|
|
}
|
|
|
|
string SGTabbedValues::operator[](const unsigned int offset) const
|
|
{
|
|
const char *data = fieldAt(offset);
|
|
char* endPtr = const_cast<char*>(data);
|
|
int len = 0;
|
|
while ((*endPtr != '\0') && (*endPtr != '\t')) {
|
|
++len;
|
|
++endPtr;
|
|
}
|
|
return string(fieldAt(offset), len);
|
|
}
|
|
|
|
bool SGTabbedValues::isValueAt(const unsigned int offset) const
|
|
{
|
|
const char *data = fieldAt(offset);
|
|
return data && (*data != '\t'); // must be non-NULL and non-tab
|
|
}
|
|
|
|
char SGTabbedValues::getCharAt(const unsigned int offset) const
|
|
{
|
|
const char *data = fieldAt(offset);
|
|
if (!data || (*data == '\t'))
|
|
return 0;
|
|
|
|
return *data;
|
|
}
|
|
|
|
double SGTabbedValues::getDoubleAt(const unsigned int offset) const
|
|
{
|
|
const char *data = fieldAt(offset);
|
|
if (!data || (*data == '\t'))
|
|
return 0;
|
|
|
|
/* this is safe because strtod will stop parsing when it sees an unrecogznied
|
|
character, which includes tab. */
|
|
return strtod(data, NULL);
|
|
}
|
|
|
|
long SGTabbedValues::getLongAt(const unsigned int offset) const
|
|
{
|
|
const char *data = fieldAt(offset);
|
|
if (!data || (*data == '\t'))
|
|
return 0;
|
|
|
|
return strtol(data, NULL, 0);
|
|
}
|