bes Updated for version 3.20.10
FFStr.cc
1
2// -*- mode: c++; c-basic-offset:4 -*-
3
4// This file is part of ff_handler a FreeForm API handler for the OPeNDAP
5// DAP2 data server.
6
7// Copyright (c) 2005 OPeNDAP, Inc.
8// Author: James Gallagher <jgallagher@opendap.org>
9//
10// This is free software; you can redistribute it and/or modify it under the
11// terms of the GNU Lesser General Public License as published by the Free
12// Software Foundation; either version 2.1 of the License, or (at your
13// option) any later version.
14//
15// This software is distributed in the hope that it will be useful, but
16// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
17// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
18// License for more details.
19//
20// You should have received a copy of the GNU Lesser General Public
21// License along with this library; if not, write to the Free Software
22// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23//
24// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
25
26// (c) COPYRIGHT URI/MIT 1997-99
27// Please read the full copyright statement in the file COPYRIGHT.
28//
29// Authors: reza (Reza Nekovei)
30
31// FreeFrom sub-class implementation for FFByte,...FFGrid.
32// The files are patterned after the subcalssing examples
33// Test<type>.c,h files.
34//
35// ReZa 6/18/97
36
37#include "config_ff.h"
38
39#ifndef WIN32
40#include <strings.h>
41#endif
42
43#include <ctype.h>
44#include <string>
45#include <cstring>
46
47#include "FFStr.h"
48#include <libdap/util.h>
49
50extern long BufPtr; // set by read functions
51extern char * BufVal; // set by first call to sequence
52
53FFStr::FFStr(const string &n, const string &d) : Str(n, d), d_length(0)
54{
55}
56
57BaseType *
58FFStr::ptr_duplicate()
59{
60 return new FFStr(*this);
61}
62
63bool
64FFStr::read()
65{
66 if (read_p()) // nothing to do
67 return true;
68
69 if (BufVal) { // Data in cache
70 char *ptr = BufVal + BufPtr;
71
72#if 0
73 // TODO Use vector? jhrg 8/19/14
74 char *TmpBuf = new char[length() + 1];
75#endif
76 vector<char> TmpBuf(length() + 1);
77
78 // This code prunes both trailing and leading spaces from strings.
79 // Spaces are often added to URLs in file server data sets since the
80 // URL length can vary but in FF a field is a fixed size. However, if
81 // you want the FF handler to return _exactly_ the string data, this
82 // should be turned off. Once the subject of much debate... jhrg
83
84 int i, j, sLength;
85
86 //remove trailing white space
87 for (i = length() - 1; i >= 0; i--)
88 if (!isspace(*(ptr + i))) break;
89
90 //remove leading white space
91 for (j = 0; j < i; j++)
92 if (!isspace(*(ptr + j))) break;
93
94 sLength = i - j + 1;
95 strncpy(&TmpBuf[0], ptr + j, i - j + 1);
96 TmpBuf[i - j + 1] = '\0';
97
98 // Use set_value() jhrg 8/19/14
99 set_value(&TmpBuf[0]);
100#if 0
101 string *Nstr = new string((const char *) TmpBuf);
102 delete[] TmpBuf;
103
104 val2buf(Nstr);
105 delete Nstr;
106#endif
107 set_read_p(true);
108
109 BufPtr += length();
110 return true;
111 }
112
113 return false;
114}
Definition: FFStr.h:47