util.h

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// -*- mode: c++; c-basic-offset:4 -*-
 
// This file is part of libdap, A C++ implementation of the OPeNDAP Data
// Access Protocol.
 
// Copyright (c) 2002,2003 OPeNDAP, Inc.
// Author: James Gallagher <jgallagher@opendap.org>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
 
// (c) COPYRIGHT URI/MIT 1994-1999
// Please read the full copyright statement in the file COPYRIGHT.
//
// Authors:
//      jhrg,jimg       James Gallagher (jgallagher@gso.uri.edu)
 
// declarations for utility functions
//
// jhrg 9/21/94
 
#ifndef _util_h
#define _util_h 1
 
#include <cmath>
#include <cstdio>
#include <vector>
 
#ifndef _basetype_h
#include "BaseType.h"
#endif
 
using std::iostream;
 
namespace libdap {
 
class Array;

inline bool double_eq(double lhs, double rhs, double epsilon = 1.0e-5) { return fabs(lhs - rhs) < epsilon; }
 
string extract_string_argument(BaseType *arg);
double extract_double_value(BaseType *arg);
double *extract_double_array(Array *a);
void extract_double_array(Array *a, vector<double> &dest);
void set_array_using_double(Array *dest, double *src, int src_len);
 
bool is_host_big_endian();
 
string prune_spaces(const string &);
bool unique_names(vector<BaseType *> l, const string &var, const string &type, string &msg);
string systime();
const char *libdap_root();
extern "C" const char *libdap_version();
extern "C" const char *libdap_name();
 
#ifdef WIN32
void flush_stream(iostream ios, FILE *out);
#endif
 
void downcase(string &s);
bool is_quoted(const string &s);
string remove_quotes(const string &s);
 
Type get_type(const char *name);
string D2type_name(Type t);
string D4type_name(Type t);
string type_name(Type t);
bool is_simple_type(Type t);
bool is_vector_type(Type t);
bool is_constructor_type(Type t);
bool is_integer_type(Type t);
 
bool dir_exists(const string &dir);
 
// Jose Garcia
void append_long_to_string(long val, int base, string &str_val);
string long_to_string(long val, int base = 10);
 
// Jose Garcia
void append_double_to_string(const double &num, string &str);
string double_to_string(const double &num);
 
string path_to_filename(string path);
int glob(const char *c, const char *s);
time_t parse_time(const char *str, bool expand);
bool size_ok(unsigned int sz, unsigned int nelem);
bool pathname_ok(const string &path, bool strict = true);
string dap_version();
string open_temp_fstream(ofstream &f, const string &name_template, const string &suffix = "");
 
} // namespace libdap
 
#endif