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-rw-r--r--graphics/epix/utils.cc124
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diff --git a/graphics/epix/utils.cc b/graphics/epix/utils.cc
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-/*
- * utils.cc -- global utility functions for ePiX
- *
- * This file is part of ePiX, a C++ library for creating high-quality
- * figures in LaTeX
- *
- * Version 1.1.18
- * Last Change: September 15, 2007
- */
-
-/*
- * Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
- * Andrew D. Hwang <rot 13 nujnat at zngupf dot ubylpebff dot rqh>
- * Department of Mathematics and Computer Science
- * College of the Holy Cross
- * Worcester, MA, 01610-2395, USA
- */
-
-/*
- * ePiX is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * ePiX 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 General Public
- * License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with ePiX; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <string>
-#include <cmath>
-#include <ctime>
-
-#include "constants.h"
-#include "utils.h"
-
-namespace ePiX {
-
- const std::string epix_version()
- {
- return "1.2.1";
- }
-
- double truncate(double arg)
- {
- return fabs(arg) < EPIX_EPSILON ? 0 : arg;
- }
-
- std::string date_and_time()
- {
- ////// N.B.: Revise this if time format string changes!
- const int max_len = 31;
- char buf[max_len];
- time_t t=time(0);
-
- // strftime(buf, max_len, "%c", localtime(&t));
-
- // Sat Jul 1 23:25:39 2006 (GMT)
- strftime(buf, max_len, "%a %b %d %X %Y (%Z)", gmtime(&t));
- return std::string(buf);
- }
-
-
- // remove everything from arg except chars in srch
- std::string get_chars(std::string arg, const std::string& srch)
- {
- std::string::size_type curr(0);
- std::string::size_type next(arg.find_first_of(srch));
-
- while (next != std::string::npos)
- {
- arg.erase(curr, next-curr);
-
- curr = arg.find_first_not_of(srch);
- next = arg.find_first_of(srch, curr);
- }
-
- if (next != curr)
- arg.erase(curr, next);
-
- return arg;
- }
-
- // add linebreaks before opening parentheses to make lines at most
- // FILE_WIDTH characters long; return reference to arg
- std::string break_lines(std::string arg, const std::string& path_break)
- {
- std::string value; // append here; swap with arg at end
-
- // initialize markers prev, curr, next
- std::string::size_type prev(0); // position of last line break
- std::string::size_type next(arg.find_first_of("("));
- std::string::size_type curr(next);
-
- unsigned int pbk_sz(path_break.size());
-
- while (next != std::string::npos)
- {
- // seek next break points
- while (next-prev <= EPIX_FILE_WIDTH - pbk_sz)
- {
- curr = next;
- next = arg.find_first_of("(", ++next);
- }
-
- value.append(arg, prev, curr-prev); // append current line
- // Magic number 20 (greater than width of a printed pair)
- if (next - prev <= 20+EPIX_FILE_WIDTH) // not at end of data
- value += path_break; // and formatting string
- prev = curr; // update front of line
- }
-
- // get remaining characters
- value.append(arg, prev, next-prev);
-
- swap(arg, value);
- return arg;
- }
-} // end of namespace