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xFileDataObjectString.cxx
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file xFileDataObjectString.cxx
10 * @author drose
11 * @date 2004-10-08
12 */
13
14#include "xFileDataObjectString.h"
15#include "string_utils.h"
16#include "indent.h"
17
18 using std::string;
19
20 TypeHandle XFileDataObjectString::_type_handle;
21
22/**
23 *
24 */
25XFileDataObjectString::
26XFileDataObjectString(const XFileDataDef *data_def, const string &value) :
27 XFileDataObject(data_def),
28 _value(value)
29{
30}
31
32/**
33 * Writes a suitable representation of this node to an .x file in text mode.
34 */
35 void XFileDataObjectString::
36 output_data(std::ostream &out) const {
37 enquote_string(out);
38}
39
40/**
41 * Writes a suitable representation of this node to an .x file in text mode.
42 */
43 void XFileDataObjectString::
44 write_data(std::ostream &out, int indent_level, const char *separator) const {
45 indent(out, indent_level);
46 enquote_string(out);
47 out << separator << "\n";
48}
49
50/**
51 * Sets the object's value as a string, if this is legal.
52 */
53 void XFileDataObjectString::
54set_string_value(const string &string_value) {
55 _value = string_value;
56}
57
58/**
59 * Returns the object's representation as a string, if it has one.
60 */
61 string XFileDataObjectString::
62get_string_value() const {
63 return _value;
64}
65
66/**
67 * Writes the string to the output stream without quotation marks, quoting
68 * special characters as needed.
69 */
70 void XFileDataObjectString::
71enquote_string(std::ostream &out) const {
72 // Actually, the XFile spec doesn't tell us how to escape special characters
73 // within quotation marks. We'll just take a stab in the dark here.
74
75 out << '"';
76 string::const_iterator si;
77 for (si = _value.begin(); si != _value.end(); ++si) {
78 switch (*si) {
79 case '\n':
80 out << "\\n";
81 break;
82
83 case '\r':
84 out << "\\r";
85 break;
86
87 case '"':
88 case '\\':
89 out << '\\' << (*si);
90 break;
91
92 default:
93 out << (*si);
94 }
95 }
96 out << '"';
97}
TypeHandle
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
XFileDataDef
A definition of a single data element appearing within a template record.
Definition xFileDataDef.h:31
XFileDataObjectString::output_data
virtual void output_data(std::ostream &out) const
Writes a suitable representation of this node to an .x file in text mode.
Definition xFileDataObjectString.cxx:36
XFileDataObjectString::write_data
virtual void write_data(std::ostream &out, int indent_level, const char *separator) const
Writes a suitable representation of this node to an .x file in text mode.
Definition xFileDataObjectString.cxx:44
XFileDataObject
The abstract base class for a number of different types of data elements that may be stored in the X ...
Definition xFileDataObject.h:30
indent
std::ostream & indent(std::ostream &out, int indent_level)
A handy function for doing text formatting.
Definition indent.cxx:20
indent.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
string_utils.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
xFileDataObjectString.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.