mfranz
f91d96b51a
- turn four #include paths from the "foo" form to <foo> The quotes form is normally only used for headers with path relative to the including file's path, though the standard doesn't strictly mandate this. This is consistent with the rest of sg, it makes the code's intent clearer and helps to find headers. (And it's a few milliseconds faster, too.)
102 lines
2.6 KiB
C++
102 lines
2.6 KiB
C++
// tabbed_values.cxx -- parse tab separated strings into fields
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//
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// Written by James Turner, started February 2003.
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//
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// Copyright (C) 2003 James Turner
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// $Id$
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#include <cstdlib>
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#include <assert.h>
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#include "tabbed_values.hxx"
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SGTabbedValues::SGTabbedValues(const char *line) :
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_line(line)
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{
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assert(line);
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_fields.push_back(const_cast<char*>(line));
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}
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const char* SGTabbedValues::fieldAt(const unsigned int index) const
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{
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// we already computed that offset, cool
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if (_fields.size() > index)
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return _fields[index];
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while (_fields.size() <= index) {
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char* nextField = _fields.back();
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if (*nextField=='\0') return NULL; // we went off the end
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while (*nextField != '\t') {
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if (*nextField=='\0') return NULL; // we went off the end
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++nextField;
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}
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_fields.push_back(++nextField);
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}
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return _fields.back();
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}
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string SGTabbedValues::operator[](const unsigned int offset) const
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{
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const char *data = fieldAt(offset);
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char* endPtr = const_cast<char*>(data);
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int len = 0;
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while ((*endPtr != '\0') && (*endPtr != '\t')) {
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++len;
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++endPtr;
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}
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return string(fieldAt(offset), len);
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}
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bool SGTabbedValues::isValueAt(const unsigned int offset) const
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{
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const char *data = fieldAt(offset);
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return data && (*data != '\t'); // must be non-NULL and non-tab
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}
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char SGTabbedValues::getCharAt(const unsigned int offset) const
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{
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const char *data = fieldAt(offset);
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if (!data || (*data == '\t'))
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return 0;
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return *data;
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}
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double SGTabbedValues::getDoubleAt(const unsigned int offset) const
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{
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const char *data = fieldAt(offset);
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if (!data || (*data == '\t'))
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return 0;
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/* this is safe because strtod will stop parsing when it sees an unrecogznied
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character, which includes tab. */
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return std::strtod(data, NULL);
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}
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long SGTabbedValues::getLongAt(const unsigned int offset) const
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{
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const char *data = fieldAt(offset);
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if (!data || (*data == '\t'))
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return 0;
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return std::strtol(data, NULL, 0);
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}
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