1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
/*
* mystring.h: Part of GNU CSSC.
*
*
* Copyright (C) 1997,1998,1999,2001 Free Software Foundation, Inc.
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*
* CSSC was originally Based on MySC, by Ross Ridge, which was
* placed in the Public Domain.
*
*
* Defines the class mystring.
*
* $Id: mystring.h,v 1.17 2001/09/29 19:39:41 james_youngman Exp $
*
*/
#ifndef CSSC__MYSTRING_H__
#define CSSC__MYSTRING_H__
// If we have the header file <string>, then
// use that rather than mystring.
#ifdef HAVE_STRING
#define USE_STANDARD_STRING
#endif
#ifdef USE_STANDARD_STRING
#include <string>
typedef STD_NAMESPACE string mystring;
#else /* Use our own "mystring". */
#ifdef __GNUC__
#pragma interface
#endif
#define STR_OFFSET (offsetof(ptr, str))
#define STR_PTR(str) ((ptr *)((str) - STR_OFFSET))
/* This is a very simple string class. Its purpose is mainly to
simplify the allocation of strings. */
class mystring
{
class MyStrRep; // nested class.
class ModifiableReference;
friend class MyStrRep; // nested class.
friend class ModifiableReference;
MyStrRep *rep;
public:
typedef unsigned long size_type;
typedef char charT;
static const size_type npos = static_cast<size_type>(-1);
// Constructors...
mystring();
mystring(const charT*);
mystring(const charT*, size_type); // first N characters.
mystring(const mystring&);
// Assignment
mystring& operator=(const mystring&);
mystring& assign(const mystring&, size_type pos);
// Observers
bool valid() const;
bool empty() const;
size_type length() const;
// Data access
// IRIX's CC seems to be unable to cope with functions disambiguated only
// by constness. It says "error(3392): cannot overload functions
// distinguished by return type alone". It's remotely possible that
// some Autoconf black magic has perpetrated #define const /*nothing*/
// and that's what's causing the problem. If so, I shall be cross...:-)
charT at(size_type) const;
ModifiableReference at(size_type);
// Casts etc.
const charT *c_str() const;
// Slicing...
mystring substr(size_type first, size_type last) const;
// Operators...
mystring operator+(const mystring&) const;
bool operator==(const mystring&) const;
bool operator!=(const mystring&) const;
// Searching..
size_type find_last_of(charT) const;
private:
class ModifiableReference
{
mystring &s;
size_type pos;
public:
ModifiableReference(mystring& sref, size_type i) : s(sref), pos(i) { }
charT& operator=(charT ch);
operator char() const;
};
int compare(const mystring &) const;
// Copy management.
void prepare_for_writing();
};
#endif /* USE_STANDARD_STRING */
#endif /* __MYSTRING_H__ */
/* Local variables: */
/* mode: c++ */
/* End: */
|
